FINAL REPORT BIRD IN HAND GOLD PROJECT BACKFILL CONSIDERATIONS RELATING TO MATTER 72 OF THE GOVERNMENT RESPONSE DOCUMENT For TERRAMIN AUSTRALIA LTD Job No. 2937_G Mining One Pty Ltd Level 9, 50 Market Street Melbourne VIC 3000 Ph: 03 9600 3588 Fax: 03 9600 3944 Doc No. 2937_G_6966_Final Date: July 2021 Prepared by: Mark Van Leuven
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Report Doc No.BACKFILL CONSIDERATIONS RELATING TO MATTER 72 OF THE
GOVERNMENT
RESPONSE DOCUMENT For
TERRAMIN AUSTRALIA LTD
Job No. 2937_G Mining One Pty Ltd Level 9, 50 Market Street
Melbourne VIC 3000 Ph: 03 9600 3588
Fax: 03 9600 3944
Doc No. 2937_G_6966_Final Date: July 2021 Prepared by: Mark Van Leuven
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TABLE OF CONTENTS EXECUTIVE SUMMARY ............................................................................................................................... i 1 INTRODUCTION ................................................................................................................................ 1
2 BACKFILL REQUIREMENTS ........................................................................................................... 2 2.1 Cut and Fill Mining Method ....................................................................................................... 2 2.2 Cemented Aggregate Fill .......................................................................................................... 2 2.3 Backfill Types and Schedule .................................................................................................... 4
3 MULLOCK CRUSHING ..................................................................................................................... 7
3.1 Mullock Requirements .............................................................................................................. 7 3.2 Mullock Crusher Selection ........................................................................................................ 9 3.3 Underground or Surface Crushing Facility ............................................................................. 12 3.4 Conceptual Layout .................................................................................................................. 12
TABLE INDEX Table 2-1 Life-of-mine Backfill Requirements ........................................................................................... 4
Table 2-2 Proposed Cemented Fill Mix Design ........................................................................................ 6
Table 3-1 Ore Drive Parameters and CAF Requirements ........................................................................ 8
Table 3-2 Metso Lokotrack® Mobile Jaw Crusher Models ........................................................................ 9
Table 3-3 Lokotrack® LT106 Dimensions ............................................................................................... 10
FIGURE INDEX Figure 2-1 Cut and Fill Sequencing Showing CRF Sill Pillar ................................................................. 3
Figure 2-2 Proposed Phases of the BIH Project .................................................................................... 4
Figure 2-3 Cross Section Showing Proposed Backfill Types ................................................................. 5
Figure 2-4 Annual Backfill Requirements ............................................................................................... 6
Figure 3-1 Plan View of Underground Workings.................................................................................... 7
Figure 3-3 Lokotrack® LT106 ............................................................................................................... 11
Figure 3-4 Conceptual Layout of Crusher Chamber and Associated Storage Bays ........................... 12
APPENDICES
BACKFILL REQUIREMENTS
EXECUTIVE SUMMARY This report is based on the Terramin provided “request for further information response document”, and the video conference attended by representatives from Terramin, Mining One and The DEM on the 29th June 2021.
Mining One have assessed the cemented fill (CF) requirements of the Bird in Hand Gold Project as presented in the Mining Lease Application Report (MLAR). In order to address the concerns regarding if Cemented Aggregate Fill (CAF) rather than Cemented Rock Fill (CRF) would be required, Mining One has assumed the former and evaluated crushing requirements for CAF.
Mining One has used the backfill requirements as reported in the MLAR as a basis for determining crushed aggregate quantities and rates.
Based on the reported life of mine production, annual cemented fill requirements range from 25,000 t/a to 60,000 t/a. From a crushing plant perspective, the upper rate equates to 5000 t/month and this rate has been used to evaluate crushing options. Due to the low monthly tonnages required, even a small jaw crusher would have very low utilisation.
For this high level study a Metso Lokotrack® mobile jaw crusher has been selected. This product is supplied in Australia by Tutt Bryant Equipment Sales
For this exercise, the LT106 model has been selected and has a nominal production rate of 400 t/h, which will adequately meet the daily requirement of 1000 t/d.
The use of fill type is determined in the mining schedule depending on the fill performance required in subsequent adjacent stopes, or if ground conditions at the location required additional strength. As stated in the MLAR, the different fill types will be designed relative to the strength of support required for the next mining stage (underhand mining or mining next to the fill). Once underground development has commenced, geotechnical and engineering test work of the available rock types can be undertaken to design the appropriate CAF requirements.
The decline has been designed at a gradient of 1V:7H to provide permanent access to the orebody. The upper decline to the ore is approximately 1 km long and will take approximately 16 months to construct. Mullock mined during this stage will be stored on the surface for later use as backfilling. This 16-month period will be used to conduct the rock property tests and the engineering design of the cemented fill. During this stage the properties / strength of CAF versus CRF can be evaluated and the decision made as to which form of cemented fill is appropriate.
Unconfined Compressive Strength (UCS) testing will be undertaken along with an extensive QAQC processes to ensure that a high quality, engineered product is placed to enable the safe working underneath this fill. CRF or CAF will be placed by underground loaders after mixing in assigned stockpile cuddies with cement slurry delivered in a bulk cement delivery truck or cement agitator trucks (“agis”) from the surface cement batching plant.
In order to address the concerns from the DEM, in particular:
“Confirm whether – in the event it became necessary – potential consequential environmental impacts associated with alternative backfill strategies have been fulsomely described in the mining lease proposal and response document (e.g. the potential for noise, air quality and visual amenity impacts arising from operations conducted at surface).”
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Mining One has chosen to locate the mullock crushing underground. This addresses the following issues:
the potential for noise;
visual amenity.
In order to ensure air quality, a spray chamber downstream from the crusher will be installed to suppress the dust emanation from the crushing process.
Mark Van Leuven Principal Mining Engineer
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1 INTRODUCTION This report is based on the Terramin provided “request for further information response document”, and the video conference attended by representatives from Terramin, Mining One and The DEM on the 29th June 2021. Mining One will address the following three points in this report:
“In the absence of further site-specific analysis it remains possible that alternative engineered backfill methods to [Cemented Rock Fill], such as [Cement Aggregate Fill], may be necessary to achieve outcomes for safety and efficient and effective mining of the Bird in Hand resource.”
“Describe the process and timing for undertaking site-specific analysis and studies to reduce uncertainty associated with the effectiveness of [Cemented Rock Fill] to achieve all relevant outcomes (including safety).”
And
“Confirm whether – in the event it became necessary – potential consequential environmental impacts associated with alternative backfill strategies have been fulsomely described in the mining lease proposal and response document (e.g. the potential for noise, air quality and visual amenity impacts arising from operations conducted at surface).”
This work is of a high-level conceptual review of backfill requirements. This report has been compiled to consider the operational requirements should cemented aggregate fill (CAF) is required rather than cemented rock fill (CRF). No analysis has been conducted at this stage to determine if this is the case.
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2 BACKFILL REQUIREMENTS The analysis conducted for this report is based on the information contained within the Bird in Hand Gold Project Mining Lease Application MC4473 Report (MLAR) and specifically in Chapter 3 of that report: “Description of Proposed Mining Operations”.
In order to determine the likely CAF requirements, the following operational parameters have been taken into account:
Average ore production rate 150,000 t/a (410 t/d).
Site mullock to be used for rockfill (RF) and CRF or CAF.
Mullock will be returned underground and either placed directly into the void or mixed on the level with a cement slurry prior to placement into the void by underground loader. Cement slurry will be delivered underground by a concrete agitator truck and the backfill mixed in a sump designed for mixing.
2.1 Cut and Fill Mining Method The mining method uses the same equipment as used for the mine development process (tunnelling). Once the ore is reached, progressive, limited height stages or “lifts” are mined along the ore using Jumbo development drills, with cycles of mining and back filling. The cut and fill method allows full access to the hanging wall for ground support and groundwater management techniques such as cabling, grouting and shotcreting. The cut and fill mining method also limits the up-dip exposures of the hanging wall rock, with suitable fill material being placed back into the mined void as mining progresses.
Stopes are mined as 20 m levels with 4 x 5 m high lifts, each, supported, conditioned and backfilled prior to the next lift above being mined. Non-mineralised material (mullock) mined will be stockpiled temporarily within available passes underground or on the surface in the integrated mullock landform (IML) in preparation to be transported back underground as backfill material. The backfill placed provides both wall support and a working platform for the subsequent lift, as stoping progresses in a bottom up sequence.
2.2 Cemented Aggregate Fill In the MLAR it stated that the expected fill types to be used at BIH would be a Cemented Rock Fill (CRF) on the lower lifts and an unconsolidated Rock Fill (RF) in the upper or adjacent lifts. For this report, it is assumed that CAF, rather than CRF will be used for the construction of the sill pillars, ie., the first (bottom) of the four lifts in a stoping panel. In Figure 2-1, CAF would be substituted for the CRF. Also, only three lifts are depicted in Figure 2-1, rather than the intended four levels.
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Figure 2-1 Cut and Fill Sequencing Showing CRF Sill Pillar
Source: Appendix M1: Geotechnical Assessment (MLAR)
The use of fill type is determined in the mining schedule depending on the fill performance required in subsequent adjacent stopes, or if ground conditions at the location required additional strength. As stated in the MLAR, the different fill types will be designed relative to the strength of support required for the next mining stage (underhand mining or mining next to the fill). Once underground development has commenced, geotechnical and engineering test work of the available rock types can be undertaken to design the appropriate CAF requirements.
The decline has been designed at a gradient of 1V:7H to provide permanent access to the orebody. The upper decline to the ore is approximately 1 km long and will take approximately 16 months to construct, see Figure 2-2. Mullock mined during this stage will be stored on the surface for later use as backfilling. This 16-month period will be used to conduct the rock property tests and the engineering design of the cemented fill. During this stage the properties / strength of CAF versus CRF can be evaluated and the decision made as to which form of cemented fill is appropriate.
Unconfined Compressive Strength (UCS) testing will be undertaken along with an extensive QAQC processes to ensure that a high quality, engineered product is placed to enable the safe working underneath this fill. CRF or CAF will be placed by underground loaders after mixing in assigned stockpile cuddies with cement slurry delivered in a bulk cement delivery truck or cement agitator trucks (“agis”) from the surface cement batching plant.
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Source: Chapter 3: Mining Operations (MLAR)
2.3 Backfill Types and Schedule The regions of the mine to be backfilled are shown in Figure 2-3. The areas to be backfilled have been selected based on risk assessment processes, geotechnical analysis, as well as those required for the mining method chosen.
The quantity of fill by type proposed for the BIH life-of-mine, excluding cement is summarised in Table 2-1. Volume of backfill assumes industry standard swell factor of 0.3, and a fill density of 2.7 t/m3. This will be further refined through Feasibility Studies and PEPR development.
For this review it is assumed that the CAF volumes will be the same as the CRF volumes presented in Table 2-1.
Table 2-1 Life-of-mine Backfill Requirements
Source: Chapter 3: Mining Operations (MLAR)
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Source: Chapter 3: Mining Operations (MLAR)
Mullock required for use within sill pillars may require screening depending on the size of the material and the results from the blasting and particle size distribution tests undertaken during mine development. This would be done with simple grizzly type separators located in underground stockpiles and ore passes. However, if CAF is required rather than CRF then it will be necessary to crush the mullock as well. See Section 3 - Mullock Crushing.
The fill by type over the life of mine is summarised in Figure 2-4.
From Table 2-1, it can be determined that 30% of total fill will either be CAF or CRF, and from Figure 2-4, annual cemented fill requirements range from 25,000 t/a to 60,000 t/a. From a crushing plant perspective, the upper rate equates to 5000 t/month.
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Source: Chapter 3: Mining Operations (MLAR)
The make-up of cemented fill is presented in Table 2-2.
Table 2-2 Proposed Cemented Fill Mix Design
Source: Chapter 3: Mining Operations (MLAR)
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3 MULLOCK CRUSHING
3.1 Mullock Requirements This section of the report assumes that mullock will need to be crushed in order to provide aggregate for a CAF product.
In Section 2.3, it was identified that the maximum annual cemented fill requirement is 60,000 t/a (5000 t/mth). The conceptual layout of the underground operations is depicted in Figure 3-1. By scaling the lengths of the cut and fill ore drives in this figure, the average length of drive that needs to be backfilled is nominally 100 m.
Figure 3-1 Plan View of Underground Workings
Source: Chapter 3: Mining Operations (MLAR)
In Table 3-1 an ore drive nominally contains 6000 t of ore (approximately half a month’s ore production) and represents 2500 m3 of void that needs to be backfilled. Based on the stoping sequence, every fourth level needs to be backfilled with a cemented fill, that is, every two months.
To allow for surge in the scheduling of individual stopes, crushing requirements are based on filling a level with cemented fill every month; 2500 m3 per month.
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Table 3-1 Ore Drive Parameters and CAF Requirements
The proposed CRF mixing bay layout is depicted in Figure 3-2 and it is assumed that the same system will be suitable for CAF. Based on the mix design presented in Table 2-2, a concrete agitator volume of 4.7 m3 will be suitable for the mixing of approximately 43 m3 of CAF, see Table 3-1. Allowing for 12 batches per day, approximately 1000 t/d of aggregate is required, and a typical ore drive would be filled in five days, see Table 3-1, which almost equals the overall monthly cemented fill requirements.
Figure 3-2 Conceptual CAF Mixing Bay Layout
Source: Chapter 3: Mining Operations (MLAR)
description unit value description unit value Drive: Cement:
length m 100 volume m3/batch 4.7 width m 5 slurry density t/m3 0.11 height m 5 CAF: volume m3 2,500 Volume m3/batch 42.7
Ore: mullock density t/m3 1.86 dilution % 11% mullock tonnes t/batch 79.5 density t/m3 2.7 CAF Production: in drive t 6,008 No. batches batch/d 12
Ore production: mullock required t/d 955 Annual t/a 150,000 Monthly t/mth 12,500 in drive % mth 48%
Backfill: Mullock t 4,655 Fill duration d 5
Nominal Ore Drive Parameters CRF / CAF Batch Size
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3.2 Mullock Crusher Selection Due to the low monthly tonnages required, even a small jaw crusher would have very low utilisation.
For this high level study a Metso Lokotrack® mobile jaw crusher has been selected. The Metso Lokotrack jaw crushers are based around the Nordberg C series which combine 25 years of manufacturing mobile crushers with the latest materials and technology. The pinned and bolted structure of the crusher ensures high durability. High inertia flywheels combined with hydraulic drive, large feed opening, and Cat engines give you unmatched crushing performance. All of this is controlled by the Metso IC system which optimises production and monitors machine functions and critical parameters. Good access platforms make operation and servicing safe.
This product is supplied in Australia by Tutt Bryant Equipment Sales, See Appendix A for the product brochure.
For this exercise, the LT106 model has been selected. As presented in Table 3-2, the LT106 has a nominal production rate of 400 t/h, which will adequately meet the daily requirement of 1000 t/d.
The basic dimensions of the LT106 are presented in Table 3-3 and photos of the unit in Figure 3-3.
Table 3-2 Metso Lokotrack® Mobile Jaw Crusher Models
Source: Metso range -Tutt Bryant Product Brochure
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Source: Metso range -Tutt Bryant Product Brochure
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3.3 Underground or Surface Crushing Facility In order to address the concerns from the DEM, in particular:
“Confirm whether – in the event it became necessary – potential consequential environmental impacts associated with alternative backfill strategies have been fulsomely described in the mining lease proposal and response document (e.g. the potential for noise, air quality and visual amenity impacts arising from operations conducted at surface).”
Mining One has chosen to locate the mullock crushing underground. This addresses the following issues:
the potential for noise,
visual amenity.
3.4 Conceptual Layout The Lokotrack® mobile crusher can be trammed down the decline and set up in a chamber at the top of the spiral decline. A conceptual layout is sketched in Figure 3-4.
Figure 3-4 Conceptual Layout of Crusher Chamber and Associated Storage Bays
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Specific points about the layout are:
The Lokotrack should be set up in a drive with flow through ventilation with the crusher feeder at the fresh air end of the drive, allowing any dust to travel past the crusher through to the stacker end of the crusher and on through a dust suppression spray chamber.
The Lokotrack can be located in a 7 m wide chamber, allowing clearance for clean-up around the unit.
Two 6 m wide access drives located perpendicular to the crusher chamber have been included for feeding of the uncrushed run-of-mine mullock and for the removal of crushed aggregate from the discharge conveyor end of the unit.
ROM mullock and crushed aggregate can be stored in stockpiles developed off the access drives.
It is assumed that the mullock will be tipped into the feeder by the same loader proposed in the MLAR, a Cat R1700. In order to tip into the feeder the access drive will need to be ramped up to approximately 1.5 m above the floor of the crusher chamber, with the height of the crusher chamber above the feeder being 8 m.
Due to the low crushing requirements, a single loader can handle the mullock feeding and the aggregate removal.
A simple spray bar and dust suppression chamber can be included downstream from the crusher chamber should it be required to handle excessive dust generation from the crushing.
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YOUR CRUSHING & SCREENING SOLUTION
3 The Partnership Tutt Bryant and Metso’s Partnership
4 Field Service, Warranty & Hire Tutt Bryant’s core offerings and serivce support for Metso Equipment
6 Lokotrack Jaw Crushers Metso range of Lokotrack Jaw Crushers
7 Lokotrack Cone Crushers Metso range of Lokotrack Cone Crushers
8 Lokotrack Impact Crushers Metso range of Lokotrack Impact Crushers
9 Metso Screens & Scalpers Metso range of Screens & Scalpers
10 Crushing & Screening Tehcnology The world leading technology assisting customers in reaching their goals
CONTENTS
Australia’s exclusive distributor of Metso mobile equipment TBE is the largest multi franchised equipment distributor in Australia with over 75 years of experience supplying a quality range of equipment and services to mining, quarrying, construction, recycling and other industries throughout Australia. TBE provides national coverage with service centres and equipment distribution in various locations.
Operating as exclusive national distributors of Metso mobile crushing and screening equipment, TBE offers an extensive range of crushers, screens, spare parts and after-market services.
Machines on hand include the Lokotrack range of medium to large size jaw, cone and impact crushers, and two/three deck mobile screens. Several new Metso models recently released include the LT120 (1200 x 870mm) jaw crusher and the new “game changing” LT220D & LT330D cone crushers.
Metso Equipment Metso are the world’s most prominent manufacturer of mobile crushing equipment, with the name Lokotrack synonymous with quality and performance. From the very first mobile crusher developed over thirty years ago to the latest models, Lokotrack has been the brand of choice for the world’s best contractors and producers.
Metso Minerals was formed in 2001 with the merger of Nordberg and Svedala. Apart from the mining and crushing division which manufacture the TBE Lokotrack models, Metso have significant interests in energy, automation, recycling, pulp and paper throughout the world.
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FIELD SERVICE CAPABILITY AND TRAINING
With Tutt Bryant Equipment, you should feel confident in entrusting your service and repair work to our experienced and factory trained technicians. Our technicians are familiar with all aspects of servicing. We service a wide variety of products in addition to those distributed by Tutt Bryant Equipment. A key attribute of our trained technicians is their ability to quickly solve problems and pre-empt faults ensuring your equipment is working at its optimum, for both the short and long term. If you are unable to deliver your machine to one of our service branches, we can carry out repairs on site with our fully equipped service units.
Tutt Bryant Equipment’s “commitment to service” is the operating slogan our Service Department works with on a daily basis. We are committed to providing our clients with quality service which translates into increased productivity and longevity of your equipment. We offer a comprehensive range of services including fixed price scheduled servicing, onsite maintenance and comprehensive oil analysis. At Tutt Bryant there’s never a job too big or too small that we can’t handle.
EXTENDED WARRANTY OPTIONS AVAILABLE Due to the high quality of Metso Lokotrack crushing and screening equipment, Tutt Bryant Equipment are able to provide extended warranty terms for all of our equipment. In another demonstration of the confidence in Metso equipment, Tutt Bryant Equipment is able to extend the industry standard 2000hr/One year to 4000hr/Two year or even 10,000hr/Five Year terms. Please see our Account Managers for more details.
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QUOTATIONS AND FIXED PRICE SERVICES
Our fixed price service initiatives help you to forecast and program maintenance costs over a predetermined period. Fixed Price Service Program: • Tutt Bryant Equipment in collaboration with equipment manufacturers can provide a thorough scheduled servicing program that can be tailored to suit your machine and your working environment. • This program is designed to minimise downtime and reduce the risk of a premature mechanical failure. • A detailed checklist of work performed is provided for your records. A copy of all service records pertaining to your machine are kept by our Service Department for future reference. Fixed Price Benefits: • Set price for each level of service. • Quality filters and premium grade lubricants are supplied for every service. • Comprehensive inspection & testing of major components including, Hydraulics, Electrics and Structures. • Oil Analysis (including laboratory reports provided) • Utilisation of Factory endorsed testing equipment that is continually calibrated for accuracy.
EQUIPMENT RENTAL Tutt Bryant Equipment is able to provide our full range of Metso Lokotracks for periods of hire to qualified customers. Our Account Managers would be pleased to assist you with equipment selection and availability. Tutt Bryant Equipment also offer a rebate schedule should you decide to purchase the machine you have on rental.
Model Type Feed Opening or Feed Size mm
Weight tonne
LT106 JAW 1,060 / 700 37.3 / 42 400 6 224
LT120 JAW 1,200 / 870 57 / 63 540 6 / 9 310
LT130E JAW 1300/1000 100 800 11/23 403
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METSO JAW CRUSHERS Metso Lokotrack LT120
The Metso Lokotrack jaw crushers are based around the Nordberg C series which combine 25 years of manufacturing mobile crushers with the latest materials and technology. The pinned and bolted structure of the crusher ensures high durability. High inertia flywheels combined with hydraulic drive, large feed opening and Cat engines give you unmatched crushing performance. All of this is controlled by the Metso IC system which optimises production and monitors machine functions and critical parameters. Good access platforms make operation and servicing safe.
Standard inclusions for Tutt Bryant Equipment specification jaw crushers include belt protection plates, side conveyors, magnets, radio remote control, and interlock cables. Other options are also available to tailor units to customer requirements. Metso jaw crushers can be used as stand alone primary crushers or as part of a multi stage operation.
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Weight tonne
LT220D (GP) CONE 210 48 350 5 310
LT300GP CONE 320 42 550 5 403
LT330D CONE 230 67 500 7 403
LT300HP CONE 240 43 550 5 403
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LO K
O T
R A
C K
C O
N E
C R
U SH
ER S
Metso cone crushers are available in either HP or GP configuration with either belt or grizzly feeder options depending on customer requirements. The crushers are designed to operate in either secondary or tertiary applications. The Nordberg HP or GP crushers offer a variety of cavity profiles to suit site conditions in order to achieve high capacity, high quality products at the lowest cost. Like all Metso mobile crushers the frame uses FEM (finite element) design technology combined with latest materials and manufacturing techniques to ensure maximum durability and availability.
Metso have recently released the new ‘D’ series LT220D and LT330D cone crushers which combine the production of the GP and HP cone with fully matched triple deck screens in a unique compact easy to setup crushing and screening configuration. These new products give you maximum production and quality at the lowest possible cost.
They really are “the game changers.”
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Weight tonne
LT1213S IMPACTOR 1,320 / 800 55 400 6 / 9 310
LT1315 IMPACTOR 1540/930 60 900 8 403
LT7150 VSI 66 30 250 5 310
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LO K
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IM PA
C T
C R
U SH
ER S
The Metso horizontal shaft impactor (HSI) crushers are based around the powerful and durable Metso NP series impact crushers. The direct drive to the crusher is the most efficient in the industry. Large feed opening, high quality blow bars, Cat engine, revised hydraulic system and IC control combine to give highest production with low operating costs and fuel consumption. When operated with a screen the Metso impact crushers can be run in open or closed circuit to optimise production. Metso impact crushers achieve high reduction ratios and can be used as primary or secondary crushers in rock or recycling applications.
The Metso vertical shaft impactor (VSI) is THE choice in final stage crushing for the creation of high quality cubical aggregates, road base and manufactured sand. Utilising the B series Barmac VSI the rotor accelerates material into the crushing chamber at speeds ranging from 45 – 70 m/s. The crusher is run by direct hydraulic drive allowing tip speed to be fully adjustable.
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Weight tonne
ST2.8 2 DECK 4870/1520 & 4600/1520 26 4.6 75
ST3.5 2 DECK 3,580 / 1,500 23 5.5 75
ST3.8 2 DECK 5480/1520 28 7.5 106
ST4.8 3 DECK 5,480 / 1,520 34 7.5 106
ST620 3 DECK 6000/1800 30.5 5.0 130
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METSO SCREENS & SCALPERS
Metso have moved their design and manufacture of scalpers and screens to the factory located in Tampere, Finland. Using latest design and manufacturing processes the Metso scalpers and screens provide high production with high quality products at low operating costs. There is a range of two and three deck scalpers and screens that can be operated as stand alone or in multi stage open or closed circuit configurations. With easy access to service locations and side platforms the Metso range of scalpers and screens meet all the latest European health and safety standards. All models feature easy deck change and offer a variety of screening media to suit all applications. The new engine package and revised hydraulic system ensure low fuel consumption with high production.
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BRUNO TECHNOLOGY The Bruno software is a Metso designed simulation program that allows you to predict production from any Metso crusher and screen combination. It also allows you to optimise potential production and product quality by varying parameters such as CSS, stroke, manganese choice, mesh apertures etc. Warnings are given if you exceed machine capabilities or setting limits.
Caveat; results are only as accurate as input data. GIGO law applies – garbage in, garbage out.
CRUSHING & SCREENING TECHNOLOGY
METSO FLEET MANAGEMENT
The new Metso fleet management system is a satellite based system allowing you to monitor and manage your Metso crushing and screening fleet. Elements covered by the system include;
• Time spent crushing, idling, traveling etc. • Monitoring of active alarms and history • Monitoring parameter changes • Fuel consumption • Location
Using this information you can generate reports on the performance and health of your Metso fleet. Any machine alarms are immediately sent so any necessary corrective action can be taken. This sophisticated management tool allows you to maximise the return on your valuable fleet assets.
The Metso ICrTM is a wireless information and control system for Lokotrack plant. Data from the various units in the process train is shared with the excavator operator to allow optimization of the production process. Benefits include;
• Low cost • Easy to install • Wireless connection between all elements • Feed optimization • Crusher setting control • Integrated with compatible IC systems
In short a cost effective way to maximise production performance.
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Nationwide:1300 658 888Nationwide: 1300 658 888
Tutt Bryant Equipment - Brisbane 10-14 Ashover Road Rocklea QLD 4106 Ph: 07 3373 6400 Email: [email protected]
Tutt Bryant Equipment - Sydney 6-8 Ferngrove Place South Granville NSW 2142 Ph: 02 9780 7200 Email: [email protected]
Tutt Bryant Equipment - Melbourne 80-86 Frankston Dandenong Road Dandenong VIC 3175 Ph: 03 9554 0300 Email: [email protected]
Tutt Bryant Equipment - Adelaide 908 Main North Road Mawson Lakes SA 5095 Ph: 08 8262 8292 Email: [email protected]
Tutt Bryant Equipment - Perth 50 Great Eastern Highway South Guildford WA 6055 Ph: 08 9478 0600 Email: [email protected]
Lokotrack® LT106™ Mobile jaw crushing plant
2 3
Lokotrack LT106:
• Proven C106 crusher with new features offers higher capacity and lower operational costs
• Compact and agile to transport • Availability and productivity maximized through high-quality components and process automation • 21st century design for safe and easy operation and
maintenance
Lokotrack LT106 Groundbreaking Excellence The improved successor to the industry benchmark in mobile crushing takes production capacity to a whole new level, while simultaneously cutting operating costs and generating the highest customer value possible. By combining 30 years of experience in mobile equipment with 21st century materials and design, the LT106 takes a giant leap forward in the mobile crushing industry.
LOKOTRACK LT106LOKOTRACK LT106
Safe and easy to operate
New design features, such as engine and flywheel com- posite covers, together with spacious service platforms and general excellent accessibility make daily operations safe and easy.
Flexible and fuel-efficient solution for the value-driven customer
Active setting control, screen module, Metso hammer and a wide range of other options give the Lokotrack LT106 unmatched process flexibility and the capability to work in the most demanding aggregate and recycling processes. A new hydraulic system, coupled with an environmentally friendly, low-emission Caterpillar C9.3 Tier4 or C9 Tier3 engine and high inertia flywheels, offers excellent fuel efficiency of 17–22 liters per hour on aver- age without compromising process flexibility, safety and the durability of the hydraulic drive.
New generation of proven performance
The Lokotrack LT106 is built around the world-renowned C106 jaw crusher, with a proven track record in the toughest of applications. New features, such as a radial side conveyor, high inertia flywheels and an IC700 automation system that utilizes an ultrasonic material level sensor, offer the best capacity and cost efficiency in the 40-ton size class. The totally new fuel-efficient CAT9.3 Tier4 engine with hydraulic drive ensures trouble-free operation and enables the direction of the crusher to be changed in the event of a blockage.
Setting standards in mobility
The Lokotrack LT106’s compact dimensions and agility on tracks mean lower transport costs between and with- in crushing sites. The chassis design, with good clearance on both ends, enables safe and easy loading onto a trail- er. Thanks to the feed hopper sides, with a patented and safe hydraulic securing system and radial side conveyor, the unit is ready for crushing or transport within minutes.
Active Setting Control is available for Lokotrack LT106.
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Composite material increases accessibility and enables easy and safe service.
Radial side conveyor can be turned to either side, thereby increasing process flexibility.
Feed hopper sides and locking mechanism are hydraulically operated.
Compact dimensions make LT106 easily transportable on trailer. The unit pictured is equipped with an optional screen module.
Basic dimensions LT106 C106 jaw crusher
Feed opening 1 060 x 700 mm 42 x 28” Feed hopper
Standard 6 m3 8 yd3
With extensions 9 m3 12 yd3
Loading height 3.9 m 12’ 10” Feeder
Width 1 170 mm 46” Length 4 340 mm 140”
Main conveyor Width 1 000 mm 39”
Discharge height (standard) 2 800 mm 9’ 7” Discharge height (optional) 3 900 mm 12’ 9”
Engine Caterpillar C9.3 224 kW (1 800 rpm) 300 hp
LOKOTRACK LT106 LOKOTRACK LT106
Transport dimensions Length 15 200 mm 49’ 9” Width 2 800 mm 9’ 2”
Height 3 400 mm 11’ 2” Weight 41 tons 90 400 lbs
Noise emissions LWA (EN ISO 9614)* 124 dB
LpA (EN ISO 11202)** 99 dB Options Screen module, long main conveyor, side conveyor, active setting control for crusher (ASC), crusher wear plates for recycling and quarry, hammer and boom, magnetic separator, automatic lubrication unit, radio remote control, conveyor dust covers and discharge hoods, high pressure water spraying system, belt protection plate, additional side plates for hopper, rubber bottom for feeder, hydraulic generator, hydraulic power takeoff, additional service platform, pre- heater for engine, interlocking cable, hot and cold climate kits.
*LWA =A-weighted sound power level **LpA =A-weighted sound pressure level at the workstation
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Metso Corporation, Lokomonkatu 3, P.O.Box 306, FI-33101 Tampere, Finland, tel. +358 20 484 142, fax +358 20 484 143 www.metso.com
Metso, Lokotrack, Nordberg, Barmac and, Trellex are trademarks or registered trademarks of Metso Corporation or its subsidiaries or affiliates. *Other names and brands may be claimed as the property of others. *Caterpillar and CAT are registered trademarks of Caterpillar Inc.
The Metso Way – Making the big difference to our customers
Everything we do is based on deep industry knowledge and expertise that makes the big difference to our customers. Decades of close customer collaboration and adapting to our customers’ ever changing needs have transformed us into a knowledge company.
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DOCUMENT INFORMATION
Status Final
Version 1
Pathname P:\2937_G Terramin - Government Questions Response Letter Report\WPO\2937_G_6966_Final.docx
File Name 2937_G_6966_Final
Job No 2937_G
DOCUMENT CHANGE CONTROL
DOCUMENT REVIEW AND SIGN OFF
Version Reviewer Position Signature Date
1 Mike McCracken Manager Mining
16/07/21
2.2 Cemented Aggregate Fill
3 MULLOCK CRUSHING
3.1 Mullock Requirements
3.4 Conceptual Layout
RESPONSE DOCUMENT For
TERRAMIN AUSTRALIA LTD
Job No. 2937_G Mining One Pty Ltd Level 9, 50 Market Street
Melbourne VIC 3000 Ph: 03 9600 3588
Fax: 03 9600 3944
Doc No. 2937_G_6966_Final Date: July 2021 Prepared by: Mark Van Leuven
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TABLE OF CONTENTS EXECUTIVE SUMMARY ............................................................................................................................... i 1 INTRODUCTION ................................................................................................................................ 1
2 BACKFILL REQUIREMENTS ........................................................................................................... 2 2.1 Cut and Fill Mining Method ....................................................................................................... 2 2.2 Cemented Aggregate Fill .......................................................................................................... 2 2.3 Backfill Types and Schedule .................................................................................................... 4
3 MULLOCK CRUSHING ..................................................................................................................... 7
3.1 Mullock Requirements .............................................................................................................. 7 3.2 Mullock Crusher Selection ........................................................................................................ 9 3.3 Underground or Surface Crushing Facility ............................................................................. 12 3.4 Conceptual Layout .................................................................................................................. 12
TABLE INDEX Table 2-1 Life-of-mine Backfill Requirements ........................................................................................... 4
Table 2-2 Proposed Cemented Fill Mix Design ........................................................................................ 6
Table 3-1 Ore Drive Parameters and CAF Requirements ........................................................................ 8
Table 3-2 Metso Lokotrack® Mobile Jaw Crusher Models ........................................................................ 9
Table 3-3 Lokotrack® LT106 Dimensions ............................................................................................... 10
FIGURE INDEX Figure 2-1 Cut and Fill Sequencing Showing CRF Sill Pillar ................................................................. 3
Figure 2-2 Proposed Phases of the BIH Project .................................................................................... 4
Figure 2-3 Cross Section Showing Proposed Backfill Types ................................................................. 5
Figure 2-4 Annual Backfill Requirements ............................................................................................... 6
Figure 3-1 Plan View of Underground Workings.................................................................................... 7
Figure 3-3 Lokotrack® LT106 ............................................................................................................... 11
Figure 3-4 Conceptual Layout of Crusher Chamber and Associated Storage Bays ........................... 12
APPENDICES
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EXECUTIVE SUMMARY This report is based on the Terramin provided “request for further information response document”, and the video conference attended by representatives from Terramin, Mining One and The DEM on the 29th June 2021.
Mining One have assessed the cemented fill (CF) requirements of the Bird in Hand Gold Project as presented in the Mining Lease Application Report (MLAR). In order to address the concerns regarding if Cemented Aggregate Fill (CAF) rather than Cemented Rock Fill (CRF) would be required, Mining One has assumed the former and evaluated crushing requirements for CAF.
Mining One has used the backfill requirements as reported in the MLAR as a basis for determining crushed aggregate quantities and rates.
Based on the reported life of mine production, annual cemented fill requirements range from 25,000 t/a to 60,000 t/a. From a crushing plant perspective, the upper rate equates to 5000 t/month and this rate has been used to evaluate crushing options. Due to the low monthly tonnages required, even a small jaw crusher would have very low utilisation.
For this high level study a Metso Lokotrack® mobile jaw crusher has been selected. This product is supplied in Australia by Tutt Bryant Equipment Sales
For this exercise, the LT106 model has been selected and has a nominal production rate of 400 t/h, which will adequately meet the daily requirement of 1000 t/d.
The use of fill type is determined in the mining schedule depending on the fill performance required in subsequent adjacent stopes, or if ground conditions at the location required additional strength. As stated in the MLAR, the different fill types will be designed relative to the strength of support required for the next mining stage (underhand mining or mining next to the fill). Once underground development has commenced, geotechnical and engineering test work of the available rock types can be undertaken to design the appropriate CAF requirements.
The decline has been designed at a gradient of 1V:7H to provide permanent access to the orebody. The upper decline to the ore is approximately 1 km long and will take approximately 16 months to construct. Mullock mined during this stage will be stored on the surface for later use as backfilling. This 16-month period will be used to conduct the rock property tests and the engineering design of the cemented fill. During this stage the properties / strength of CAF versus CRF can be evaluated and the decision made as to which form of cemented fill is appropriate.
Unconfined Compressive Strength (UCS) testing will be undertaken along with an extensive QAQC processes to ensure that a high quality, engineered product is placed to enable the safe working underneath this fill. CRF or CAF will be placed by underground loaders after mixing in assigned stockpile cuddies with cement slurry delivered in a bulk cement delivery truck or cement agitator trucks (“agis”) from the surface cement batching plant.
In order to address the concerns from the DEM, in particular:
“Confirm whether – in the event it became necessary – potential consequential environmental impacts associated with alternative backfill strategies have been fulsomely described in the mining lease proposal and response document (e.g. the potential for noise, air quality and visual amenity impacts arising from operations conducted at surface).”
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Mining One has chosen to locate the mullock crushing underground. This addresses the following issues:
the potential for noise;
visual amenity.
In order to ensure air quality, a spray chamber downstream from the crusher will be installed to suppress the dust emanation from the crushing process.
Mark Van Leuven Principal Mining Engineer
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1 INTRODUCTION This report is based on the Terramin provided “request for further information response document”, and the video conference attended by representatives from Terramin, Mining One and The DEM on the 29th June 2021. Mining One will address the following three points in this report:
“In the absence of further site-specific analysis it remains possible that alternative engineered backfill methods to [Cemented Rock Fill], such as [Cement Aggregate Fill], may be necessary to achieve outcomes for safety and efficient and effective mining of the Bird in Hand resource.”
“Describe the process and timing for undertaking site-specific analysis and studies to reduce uncertainty associated with the effectiveness of [Cemented Rock Fill] to achieve all relevant outcomes (including safety).”
And
“Confirm whether – in the event it became necessary – potential consequential environmental impacts associated with alternative backfill strategies have been fulsomely described in the mining lease proposal and response document (e.g. the potential for noise, air quality and visual amenity impacts arising from operations conducted at surface).”
This work is of a high-level conceptual review of backfill requirements. This report has been compiled to consider the operational requirements should cemented aggregate fill (CAF) is required rather than cemented rock fill (CRF). No analysis has been conducted at this stage to determine if this is the case.
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2 BACKFILL REQUIREMENTS The analysis conducted for this report is based on the information contained within the Bird in Hand Gold Project Mining Lease Application MC4473 Report (MLAR) and specifically in Chapter 3 of that report: “Description of Proposed Mining Operations”.
In order to determine the likely CAF requirements, the following operational parameters have been taken into account:
Average ore production rate 150,000 t/a (410 t/d).
Site mullock to be used for rockfill (RF) and CRF or CAF.
Mullock will be returned underground and either placed directly into the void or mixed on the level with a cement slurry prior to placement into the void by underground loader. Cement slurry will be delivered underground by a concrete agitator truck and the backfill mixed in a sump designed for mixing.
2.1 Cut and Fill Mining Method The mining method uses the same equipment as used for the mine development process (tunnelling). Once the ore is reached, progressive, limited height stages or “lifts” are mined along the ore using Jumbo development drills, with cycles of mining and back filling. The cut and fill method allows full access to the hanging wall for ground support and groundwater management techniques such as cabling, grouting and shotcreting. The cut and fill mining method also limits the up-dip exposures of the hanging wall rock, with suitable fill material being placed back into the mined void as mining progresses.
Stopes are mined as 20 m levels with 4 x 5 m high lifts, each, supported, conditioned and backfilled prior to the next lift above being mined. Non-mineralised material (mullock) mined will be stockpiled temporarily within available passes underground or on the surface in the integrated mullock landform (IML) in preparation to be transported back underground as backfill material. The backfill placed provides both wall support and a working platform for the subsequent lift, as stoping progresses in a bottom up sequence.
2.2 Cemented Aggregate Fill In the MLAR it stated that the expected fill types to be used at BIH would be a Cemented Rock Fill (CRF) on the lower lifts and an unconsolidated Rock Fill (RF) in the upper or adjacent lifts. For this report, it is assumed that CAF, rather than CRF will be used for the construction of the sill pillars, ie., the first (bottom) of the four lifts in a stoping panel. In Figure 2-1, CAF would be substituted for the CRF. Also, only three lifts are depicted in Figure 2-1, rather than the intended four levels.
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Figure 2-1 Cut and Fill Sequencing Showing CRF Sill Pillar
Source: Appendix M1: Geotechnical Assessment (MLAR)
The use of fill type is determined in the mining schedule depending on the fill performance required in subsequent adjacent stopes, or if ground conditions at the location required additional strength. As stated in the MLAR, the different fill types will be designed relative to the strength of support required for the next mining stage (underhand mining or mining next to the fill). Once underground development has commenced, geotechnical and engineering test work of the available rock types can be undertaken to design the appropriate CAF requirements.
The decline has been designed at a gradient of 1V:7H to provide permanent access to the orebody. The upper decline to the ore is approximately 1 km long and will take approximately 16 months to construct, see Figure 2-2. Mullock mined during this stage will be stored on the surface for later use as backfilling. This 16-month period will be used to conduct the rock property tests and the engineering design of the cemented fill. During this stage the properties / strength of CAF versus CRF can be evaluated and the decision made as to which form of cemented fill is appropriate.
Unconfined Compressive Strength (UCS) testing will be undertaken along with an extensive QAQC processes to ensure that a high quality, engineered product is placed to enable the safe working underneath this fill. CRF or CAF will be placed by underground loaders after mixing in assigned stockpile cuddies with cement slurry delivered in a bulk cement delivery truck or cement agitator trucks (“agis”) from the surface cement batching plant.
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Source: Chapter 3: Mining Operations (MLAR)
2.3 Backfill Types and Schedule The regions of the mine to be backfilled are shown in Figure 2-3. The areas to be backfilled have been selected based on risk assessment processes, geotechnical analysis, as well as those required for the mining method chosen.
The quantity of fill by type proposed for the BIH life-of-mine, excluding cement is summarised in Table 2-1. Volume of backfill assumes industry standard swell factor of 0.3, and a fill density of 2.7 t/m3. This will be further refined through Feasibility Studies and PEPR development.
For this review it is assumed that the CAF volumes will be the same as the CRF volumes presented in Table 2-1.
Table 2-1 Life-of-mine Backfill Requirements
Source: Chapter 3: Mining Operations (MLAR)
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Source: Chapter 3: Mining Operations (MLAR)
Mullock required for use within sill pillars may require screening depending on the size of the material and the results from the blasting and particle size distribution tests undertaken during mine development. This would be done with simple grizzly type separators located in underground stockpiles and ore passes. However, if CAF is required rather than CRF then it will be necessary to crush the mullock as well. See Section 3 - Mullock Crushing.
The fill by type over the life of mine is summarised in Figure 2-4.
From Table 2-1, it can be determined that 30% of total fill will either be CAF or CRF, and from Figure 2-4, annual cemented fill requirements range from 25,000 t/a to 60,000 t/a. From a crushing plant perspective, the upper rate equates to 5000 t/month.
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Source: Chapter 3: Mining Operations (MLAR)
The make-up of cemented fill is presented in Table 2-2.
Table 2-2 Proposed Cemented Fill Mix Design
Source: Chapter 3: Mining Operations (MLAR)
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3 MULLOCK CRUSHING
3.1 Mullock Requirements This section of the report assumes that mullock will need to be crushed in order to provide aggregate for a CAF product.
In Section 2.3, it was identified that the maximum annual cemented fill requirement is 60,000 t/a (5000 t/mth). The conceptual layout of the underground operations is depicted in Figure 3-1. By scaling the lengths of the cut and fill ore drives in this figure, the average length of drive that needs to be backfilled is nominally 100 m.
Figure 3-1 Plan View of Underground Workings
Source: Chapter 3: Mining Operations (MLAR)
In Table 3-1 an ore drive nominally contains 6000 t of ore (approximately half a month’s ore production) and represents 2500 m3 of void that needs to be backfilled. Based on the stoping sequence, every fourth level needs to be backfilled with a cemented fill, that is, every two months.
To allow for surge in the scheduling of individual stopes, crushing requirements are based on filling a level with cemented fill every month; 2500 m3 per month.
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Table 3-1 Ore Drive Parameters and CAF Requirements
The proposed CRF mixing bay layout is depicted in Figure 3-2 and it is assumed that the same system will be suitable for CAF. Based on the mix design presented in Table 2-2, a concrete agitator volume of 4.7 m3 will be suitable for the mixing of approximately 43 m3 of CAF, see Table 3-1. Allowing for 12 batches per day, approximately 1000 t/d of aggregate is required, and a typical ore drive would be filled in five days, see Table 3-1, which almost equals the overall monthly cemented fill requirements.
Figure 3-2 Conceptual CAF Mixing Bay Layout
Source: Chapter 3: Mining Operations (MLAR)
description unit value description unit value Drive: Cement:
length m 100 volume m3/batch 4.7 width m 5 slurry density t/m3 0.11 height m 5 CAF: volume m3 2,500 Volume m3/batch 42.7
Ore: mullock density t/m3 1.86 dilution % 11% mullock tonnes t/batch 79.5 density t/m3 2.7 CAF Production: in drive t 6,008 No. batches batch/d 12
Ore production: mullock required t/d 955 Annual t/a 150,000 Monthly t/mth 12,500 in drive % mth 48%
Backfill: Mullock t 4,655 Fill duration d 5
Nominal Ore Drive Parameters CRF / CAF Batch Size
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3.2 Mullock Crusher Selection Due to the low monthly tonnages required, even a small jaw crusher would have very low utilisation.
For this high level study a Metso Lokotrack® mobile jaw crusher has been selected. The Metso Lokotrack jaw crushers are based around the Nordberg C series which combine 25 years of manufacturing mobile crushers with the latest materials and technology. The pinned and bolted structure of the crusher ensures high durability. High inertia flywheels combined with hydraulic drive, large feed opening, and Cat engines give you unmatched crushing performance. All of this is controlled by the Metso IC system which optimises production and monitors machine functions and critical parameters. Good access platforms make operation and servicing safe.
This product is supplied in Australia by Tutt Bryant Equipment Sales, See Appendix A for the product brochure.
For this exercise, the LT106 model has been selected. As presented in Table 3-2, the LT106 has a nominal production rate of 400 t/h, which will adequately meet the daily requirement of 1000 t/d.
The basic dimensions of the LT106 are presented in Table 3-3 and photos of the unit in Figure 3-3.
Table 3-2 Metso Lokotrack® Mobile Jaw Crusher Models
Source: Metso range -Tutt Bryant Product Brochure
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Source: Metso range -Tutt Bryant Product Brochure
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3.3 Underground or Surface Crushing Facility In order to address the concerns from the DEM, in particular:
“Confirm whether – in the event it became necessary – potential consequential environmental impacts associated with alternative backfill strategies have been fulsomely described in the mining lease proposal and response document (e.g. the potential for noise, air quality and visual amenity impacts arising from operations conducted at surface).”
Mining One has chosen to locate the mullock crushing underground. This addresses the following issues:
the potential for noise,
visual amenity.
3.4 Conceptual Layout The Lokotrack® mobile crusher can be trammed down the decline and set up in a chamber at the top of the spiral decline. A conceptual layout is sketched in Figure 3-4.
Figure 3-4 Conceptual Layout of Crusher Chamber and Associated Storage Bays
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Specific points about the layout are:
The Lokotrack should be set up in a drive with flow through ventilation with the crusher feeder at the fresh air end of the drive, allowing any dust to travel past the crusher through to the stacker end of the crusher and on through a dust suppression spray chamber.
The Lokotrack can be located in a 7 m wide chamber, allowing clearance for clean-up around the unit.
Two 6 m wide access drives located perpendicular to the crusher chamber have been included for feeding of the uncrushed run-of-mine mullock and for the removal of crushed aggregate from the discharge conveyor end of the unit.
ROM mullock and crushed aggregate can be stored in stockpiles developed off the access drives.
It is assumed that the mullock will be tipped into the feeder by the same loader proposed in the MLAR, a Cat R1700. In order to tip into the feeder the access drive will need to be ramped up to approximately 1.5 m above the floor of the crusher chamber, with the height of the crusher chamber above the feeder being 8 m.
Due to the low crushing requirements, a single loader can handle the mullock feeding and the aggregate removal.
A simple spray bar and dust suppression chamber can be included downstream from the crusher chamber should it be required to handle excessive dust generation from the crushing.
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YOUR CRUSHING & SCREENING SOLUTION
3 The Partnership Tutt Bryant and Metso’s Partnership
4 Field Service, Warranty & Hire Tutt Bryant’s core offerings and serivce support for Metso Equipment
6 Lokotrack Jaw Crushers Metso range of Lokotrack Jaw Crushers
7 Lokotrack Cone Crushers Metso range of Lokotrack Cone Crushers
8 Lokotrack Impact Crushers Metso range of Lokotrack Impact Crushers
9 Metso Screens & Scalpers Metso range of Screens & Scalpers
10 Crushing & Screening Tehcnology The world leading technology assisting customers in reaching their goals
CONTENTS
Australia’s exclusive distributor of Metso mobile equipment TBE is the largest multi franchised equipment distributor in Australia with over 75 years of experience supplying a quality range of equipment and services to mining, quarrying, construction, recycling and other industries throughout Australia. TBE provides national coverage with service centres and equipment distribution in various locations.
Operating as exclusive national distributors of Metso mobile crushing and screening equipment, TBE offers an extensive range of crushers, screens, spare parts and after-market services.
Machines on hand include the Lokotrack range of medium to large size jaw, cone and impact crushers, and two/three deck mobile screens. Several new Metso models recently released include the LT120 (1200 x 870mm) jaw crusher and the new “game changing” LT220D & LT330D cone crushers.
Metso Equipment Metso are the world’s most prominent manufacturer of mobile crushing equipment, with the name Lokotrack synonymous with quality and performance. From the very first mobile crusher developed over thirty years ago to the latest models, Lokotrack has been the brand of choice for the world’s best contractors and producers.
Metso Minerals was formed in 2001 with the merger of Nordberg and Svedala. Apart from the mining and crushing division which manufacture the TBE Lokotrack models, Metso have significant interests in energy, automation, recycling, pulp and paper throughout the world.
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FIELD SERVICE CAPABILITY AND TRAINING
With Tutt Bryant Equipment, you should feel confident in entrusting your service and repair work to our experienced and factory trained technicians. Our technicians are familiar with all aspects of servicing. We service a wide variety of products in addition to those distributed by Tutt Bryant Equipment. A key attribute of our trained technicians is their ability to quickly solve problems and pre-empt faults ensuring your equipment is working at its optimum, for both the short and long term. If you are unable to deliver your machine to one of our service branches, we can carry out repairs on site with our fully equipped service units.
Tutt Bryant Equipment’s “commitment to service” is the operating slogan our Service Department works with on a daily basis. We are committed to providing our clients with quality service which translates into increased productivity and longevity of your equipment. We offer a comprehensive range of services including fixed price scheduled servicing, onsite maintenance and comprehensive oil analysis. At Tutt Bryant there’s never a job too big or too small that we can’t handle.
EXTENDED WARRANTY OPTIONS AVAILABLE Due to the high quality of Metso Lokotrack crushing and screening equipment, Tutt Bryant Equipment are able to provide extended warranty terms for all of our equipment. In another demonstration of the confidence in Metso equipment, Tutt Bryant Equipment is able to extend the industry standard 2000hr/One year to 4000hr/Two year or even 10,000hr/Five Year terms. Please see our Account Managers for more details.
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QUOTATIONS AND FIXED PRICE SERVICES
Our fixed price service initiatives help you to forecast and program maintenance costs over a predetermined period. Fixed Price Service Program: • Tutt Bryant Equipment in collaboration with equipment manufacturers can provide a thorough scheduled servicing program that can be tailored to suit your machine and your working environment. • This program is designed to minimise downtime and reduce the risk of a premature mechanical failure. • A detailed checklist of work performed is provided for your records. A copy of all service records pertaining to your machine are kept by our Service Department for future reference. Fixed Price Benefits: • Set price for each level of service. • Quality filters and premium grade lubricants are supplied for every service. • Comprehensive inspection & testing of major components including, Hydraulics, Electrics and Structures. • Oil Analysis (including laboratory reports provided) • Utilisation of Factory endorsed testing equipment that is continually calibrated for accuracy.
EQUIPMENT RENTAL Tutt Bryant Equipment is able to provide our full range of Metso Lokotracks for periods of hire to qualified customers. Our Account Managers would be pleased to assist you with equipment selection and availability. Tutt Bryant Equipment also offer a rebate schedule should you decide to purchase the machine you have on rental.
Model Type Feed Opening or Feed Size mm
Weight tonne
LT106 JAW 1,060 / 700 37.3 / 42 400 6 224
LT120 JAW 1,200 / 870 57 / 63 540 6 / 9 310
LT130E JAW 1300/1000 100 800 11/23 403
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METSO JAW CRUSHERS Metso Lokotrack LT120
The Metso Lokotrack jaw crushers are based around the Nordberg C series which combine 25 years of manufacturing mobile crushers with the latest materials and technology. The pinned and bolted structure of the crusher ensures high durability. High inertia flywheels combined with hydraulic drive, large feed opening and Cat engines give you unmatched crushing performance. All of this is controlled by the Metso IC system which optimises production and monitors machine functions and critical parameters. Good access platforms make operation and servicing safe.
Standard inclusions for Tutt Bryant Equipment specification jaw crushers include belt protection plates, side conveyors, magnets, radio remote control, and interlock cables. Other options are also available to tailor units to customer requirements. Metso jaw crushers can be used as stand alone primary crushers or as part of a multi stage operation.
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Weight tonne
LT220D (GP) CONE 210 48 350 5 310
LT300GP CONE 320 42 550 5 403
LT330D CONE 230 67 500 7 403
LT300HP CONE 240 43 550 5 403
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LO K
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R A
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C O
N E
C R
U SH
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Metso cone crushers are available in either HP or GP configuration with either belt or grizzly feeder options depending on customer requirements. The crushers are designed to operate in either secondary or tertiary applications. The Nordberg HP or GP crushers offer a variety of cavity profiles to suit site conditions in order to achieve high capacity, high quality products at the lowest cost. Like all Metso mobile crushers the frame uses FEM (finite element) design technology combined with latest materials and manufacturing techniques to ensure maximum durability and availability.
Metso have recently released the new ‘D’ series LT220D and LT330D cone crushers which combine the production of the GP and HP cone with fully matched triple deck screens in a unique compact easy to setup crushing and screening configuration. These new products give you maximum production and quality at the lowest possible cost.
They really are “the game changers.”
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Weight tonne
LT1213S IMPACTOR 1,320 / 800 55 400 6 / 9 310
LT1315 IMPACTOR 1540/930 60 900 8 403
LT7150 VSI 66 30 250 5 310
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IM PA
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ER S
The Metso horizontal shaft impactor (HSI) crushers are based around the powerful and durable Metso NP series impact crushers. The direct drive to the crusher is the most efficient in the industry. Large feed opening, high quality blow bars, Cat engine, revised hydraulic system and IC control combine to give highest production with low operating costs and fuel consumption. When operated with a screen the Metso impact crushers can be run in open or closed circuit to optimise production. Metso impact crushers achieve high reduction ratios and can be used as primary or secondary crushers in rock or recycling applications.
The Metso vertical shaft impactor (VSI) is THE choice in final stage crushing for the creation of high quality cubical aggregates, road base and manufactured sand. Utilising the B series Barmac VSI the rotor accelerates material into the crushing chamber at speeds ranging from 45 – 70 m/s. The crusher is run by direct hydraulic drive allowing tip speed to be fully adjustable.
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Weight tonne
ST2.8 2 DECK 4870/1520 & 4600/1520 26 4.6 75
ST3.5 2 DECK 3,580 / 1,500 23 5.5 75
ST3.8 2 DECK 5480/1520 28 7.5 106
ST4.8 3 DECK 5,480 / 1,520 34 7.5 106
ST620 3 DECK 6000/1800 30.5 5.0 130
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METSO SCREENS & SCALPERS
Metso have moved their design and manufacture of scalpers and screens to the factory located in Tampere, Finland. Using latest design and manufacturing processes the Metso scalpers and screens provide high production with high quality products at low operating costs. There is a range of two and three deck scalpers and screens that can be operated as stand alone or in multi stage open or closed circuit configurations. With easy access to service locations and side platforms the Metso range of scalpers and screens meet all the latest European health and safety standards. All models feature easy deck change and offer a variety of screening media to suit all applications. The new engine package and revised hydraulic system ensure low fuel consumption with high production.
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BRUNO TECHNOLOGY The Bruno software is a Metso designed simulation program that allows you to predict production from any Metso crusher and screen combination. It also allows you to optimise potential production and product quality by varying parameters such as CSS, stroke, manganese choice, mesh apertures etc. Warnings are given if you exceed machine capabilities or setting limits.
Caveat; results are only as accurate as input data. GIGO law applies – garbage in, garbage out.
CRUSHING & SCREENING TECHNOLOGY
METSO FLEET MANAGEMENT
The new Metso fleet management system is a satellite based system allowing you to monitor and manage your Metso crushing and screening fleet. Elements covered by the system include;
• Time spent crushing, idling, traveling etc. • Monitoring of active alarms and history • Monitoring parameter changes • Fuel consumption • Location
Using this information you can generate reports on the performance and health of your Metso fleet. Any machine alarms are immediately sent so any necessary corrective action can be taken. This sophisticated management tool allows you to maximise the return on your valuable fleet assets.
The Metso ICrTM is a wireless information and control system for Lokotrack plant. Data from the various units in the process train is shared with the excavator operator to allow optimization of the production process. Benefits include;
• Low cost • Easy to install • Wireless connection between all elements • Feed optimization • Crusher setting control • Integrated with compatible IC systems
In short a cost effective way to maximise production performance.
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Nationwide:1300 658 888Nationwide: 1300 658 888
Tutt Bryant Equipment - Brisbane 10-14 Ashover Road Rocklea QLD 4106 Ph: 07 3373 6400 Email: [email protected]
Tutt Bryant Equipment - Sydney 6-8 Ferngrove Place South Granville NSW 2142 Ph: 02 9780 7200 Email: [email protected]
Tutt Bryant Equipment - Melbourne 80-86 Frankston Dandenong Road Dandenong VIC 3175 Ph: 03 9554 0300 Email: [email protected]
Tutt Bryant Equipment - Adelaide 908 Main North Road Mawson Lakes SA 5095 Ph: 08 8262 8292 Email: [email protected]
Tutt Bryant Equipment - Perth 50 Great Eastern Highway South Guildford WA 6055 Ph: 08 9478 0600 Email: [email protected]
Lokotrack® LT106™ Mobile jaw crushing plant
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Lokotrack LT106:
• Proven C106 crusher with new features offers higher capacity and lower operational costs
• Compact and agile to transport • Availability and productivity maximized through high-quality components and process automation • 21st century design for safe and easy operation and
maintenance
Lokotrack LT106 Groundbreaking Excellence The improved successor to the industry benchmark in mobile crushing takes production capacity to a whole new level, while simultaneously cutting operating costs and generating the highest customer value possible. By combining 30 years of experience in mobile equipment with 21st century materials and design, the LT106 takes a giant leap forward in the mobile crushing industry.
LOKOTRACK LT106LOKOTRACK LT106
Safe and easy to operate
New design features, such as engine and flywheel com- posite covers, together with spacious service platforms and general excellent accessibility make daily operations safe and easy.
Flexible and fuel-efficient solution for the value-driven customer
Active setting control, screen module, Metso hammer and a wide range of other options give the Lokotrack LT106 unmatched process flexibility and the capability to work in the most demanding aggregate and recycling processes. A new hydraulic system, coupled with an environmentally friendly, low-emission Caterpillar C9.3 Tier4 or C9 Tier3 engine and high inertia flywheels, offers excellent fuel efficiency of 17–22 liters per hour on aver- age without compromising process flexibility, safety and the durability of the hydraulic drive.
New generation of proven performance
The Lokotrack LT106 is built around the world-renowned C106 jaw crusher, with a proven track record in the toughest of applications. New features, such as a radial side conveyor, high inertia flywheels and an IC700 automation system that utilizes an ultrasonic material level sensor, offer the best capacity and cost efficiency in the 40-ton size class. The totally new fuel-efficient CAT9.3 Tier4 engine with hydraulic drive ensures trouble-free operation and enables the direction of the crusher to be changed in the event of a blockage.
Setting standards in mobility
The Lokotrack LT106’s compact dimensions and agility on tracks mean lower transport costs between and with- in crushing sites. The chassis design, with good clearance on both ends, enables safe and easy loading onto a trail- er. Thanks to the feed hopper sides, with a patented and safe hydraulic securing system and radial side conveyor, the unit is ready for crushing or transport within minutes.
Active Setting Control is available for Lokotrack LT106.
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Composite material increases accessibility and enables easy and safe service.
Radial side conveyor can be turned to either side, thereby increasing process flexibility.
Feed hopper sides and locking mechanism are hydraulically operated.
Compact dimensions make LT106 easily transportable on trailer. The unit pictured is equipped with an optional screen module.
Basic dimensions LT106 C106 jaw crusher
Feed opening 1 060 x 700 mm 42 x 28” Feed hopper
Standard 6 m3 8 yd3
With extensions 9 m3 12 yd3
Loading height 3.9 m 12’ 10” Feeder
Width 1 170 mm 46” Length 4 340 mm 140”
Main conveyor Width 1 000 mm 39”
Discharge height (standard) 2 800 mm 9’ 7” Discharge height (optional) 3 900 mm 12’ 9”
Engine Caterpillar C9.3 224 kW (1 800 rpm) 300 hp
LOKOTRACK LT106 LOKOTRACK LT106
Transport dimensions Length 15 200 mm 49’ 9” Width 2 800 mm 9’ 2”
Height 3 400 mm 11’ 2” Weight 41 tons 90 400 lbs
Noise emissions LWA (EN ISO 9614)* 124 dB
LpA (EN ISO 11202)** 99 dB Options Screen module, long main conveyor, side conveyor, active setting control for crusher (ASC), crusher wear plates for recycling and quarry, hammer and boom, magnetic separator, automatic lubrication unit, radio remote control, conveyor dust covers and discharge hoods, high pressure water spraying system, belt protection plate, additional side plates for hopper, rubber bottom for feeder, hydraulic generator, hydraulic power takeoff, additional service platform, pre- heater for engine, interlocking cable, hot and cold climate kits.
*LWA =A-weighted sound power level **LpA =A-weighted sound pressure level at the workstation
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Metso Corporation, Lokomonkatu 3, P.O.Box 306, FI-33101 Tampere, Finland, tel. +358 20 484 142, fax +358 20 484 143 www.metso.com
Metso, Lokotrack, Nordberg, Barmac and, Trellex are trademarks or registered trademarks of Metso Corporation or its subsidiaries or affiliates. *Other names and brands may be claimed as the property of others. *Caterpillar and CAT are registered trademarks of Caterpillar Inc.
The Metso Way – Making the big difference to our customers
Everything we do is based on deep industry knowledge and expertise that makes the big difference to our customers. Decades of close customer collaboration and adapting to our customers’ ever changing needs have transformed us into a knowledge company.
P:\2937_G\2937_G_6966_Final
BACKFILL REQUIREMENTS
DOCUMENT INFORMATION
Status Final
Version 1
Pathname P:\2937_G Terramin - Government Questions Response Letter Report\WPO\2937_G_6966_Final.docx
File Name 2937_G_6966_Final
Job No 2937_G
DOCUMENT CHANGE CONTROL
DOCUMENT REVIEW AND SIGN OFF
Version Reviewer Position Signature Date
1 Mike McCracken Manager Mining
16/07/21
2.2 Cemented Aggregate Fill
3 MULLOCK CRUSHING
3.1 Mullock Requirements
3.4 Conceptual Layout
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