Sam McCoy Mfg_Catalogue 2004_2

8/3/2019 Sam McCoy Mfg_Catalogue 2004_2

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2

Rotary Drum Thickeners

Other Equipment

Equipment for Headworks

2History SMCM Products After Sales Service

1

Contents

ProductCatalogue

Introduction

SECTION PAGE

Climber Screens

Type T Wire Rope Front Rake Screens

Fine Stepping Screens

Drum Screens

3

4

6

7

Screw Screens

Shaftless Screw Conveyors

Grit Classifiers

8

10

14

Zickert Sludge Scrapers

Engineered FRP Covers

Submersible Aerators

Bagging Systems

16

17

20

21

26


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History

Sam McCoy is widely recognized as a leading special-

ist in the fields of pumping as well as water and waste-water treatment. The company began its operations in1983 and in 1985, a joint venture was forged with FlygtAB of Sweden, the world's largest manufacturer ofFlygt submersible pumps.

Today, Sam McCoy specializes in :

Potable Water, Wastewater, Irrigation and Flood

Control Equipment

Design & Construction of Wastewater Treatment

Plants

Operation and Maintenance of Wastewater Treat-

ment Plants / Pumping Stations

Service and Repair of pumps, screens, centri-

fuges and other related equipment

The company's manufacturing arm, Sam McCoyManufacturing (SMCM) was established in 1989 tomanufacture water and wastewater equipment for thelocal as well as export market. We have successfullymarketed our products into China, Hong Kong, Tai-wan, Australia, New Zealand, Netherlands and closerto home, Singapore and Thailand.

At the center of all our activities is the groups commit-ment to quality as evidenced by the attainment of ISO9001 from Germanischer Lloyd GmBH.

In our efforts to preserve the environment, our manu-facturing subsidiary has also been certified with ISO14001 environment standards from SIRIM.

To assist you at the regional level, we have offices inSingapore and Indonesia and distributors in Brunei,

Sabah and Sarawak.

SMCM Products

As an ISO 9001 and ISO 14001 accredited company,

we observe strict quality and environmental proce-dures in our manufacturing program.

Our Engineering Department employs Design andProduction Engineers who are capable of supportingthe business in areas such as design, technical sup-port as well as quality assurance.

SMCM has been at the forefront of developing prod-ucts such as :

Climber Screens



Grit Classifiers

Drum Screens

Screw Screens


Grit Classifiers





Bagging Systems

After Sales Service

Our dedicated sales and service teams build qualitylong term relationships because we understand theimportance of being reliable, innovative and effective inproviding solutions to our clients.

As each application of our product is unique, our salesand service teams aim to create solutions to meet ourclients' needs. Our business is focused on valueadded customer service where we become an integralpart of our customers' project.

To support our customers beyond the point of sale, ourAfter Sales Service Center provides installation, main-tenance, repair and servicing of a comprehensive

range of pumps and wastewater equipment.

History SMCM ProductsAfter Sales Service

Introduction


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The Climber screen (LX) is a bar screen designed to remove debris suchas rags, sticks, etc. from raw sewage. The amount of screenings re-

moved from the waste stream is determined by the slot width of thescreens. The LX bar screen features a self climbing screen carriagewhich carries the raking mechanism without the need for chains or steelcables. The screen carriage remains above the water surface at alltimes.

Operation

In operation, the screen carriage is driven by cog wheels traveling upone side and down the other of a vertical double sided track. A series ofdouble rollers traveling in guide tracks create a geometrically simulatedraking motion. As the rake descends it is held out from the screen until itreaches the point near the bottom of the screen where it moves in an arcto push the rake teeth into the slots of the screen. At that point the rakestarts its ascent and rakes the screen clean at a rate of 6-8 m/minute.

The rake then continues to move up the dead plate until it reaches thedischarge chute where a stripper blade pushes the screenings off therake and into the chute. The screen carriage continues to the top of thescreen where it changes sides and pauses until the next cycle is re-quested. The rake arm is spring loaded so that it will rise and move overimmovable obstructions caught in the bars rather than damage the driveunit.

W ( m ) Hu ( m) Hi ( m ) Available Slots ( mm )

0.8 - 3.0 2.0 - 10.0 1.2 - 1.9 6.0 - 25.0

Invert Level

Liquid Level

Service Level

Discharge Level

Invert Level

Liquid Level

Service Level

Discharge Level

Climber Screens



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The Type T Wire Rope Front Rake Screen is installed in theinfluent channel to prevent the coarse screenings, solids and

floating objects from entering the pump station. Screenings willbe removed from the bar rack and discharged onto a conveyorenroute to a skip for eventual disposal.

Design Advantages

Simple in construction and yet provides sufficient raking

capacities in severe conditions (eg. typhoon).

Available in inclined configuration or vertical configuration

for deep channels to reduce space and construction cost.

No submerged chain, bearings, sprockets etc.

Bar screen designed in sections for easy dismantling.

Design Features

The screen is designed for easy installation on location. Electrical wiring, motor, limit switches & moving parts are

designed for easy maintenance.

All wetted parts in SS304 or SS316 (optional).

Machine Safety Features

Wire Rope Slack Mechanism: to detect any slack on the

wire rope during operation.

Wire Rope Guide: to prevent wire rope running out of

groove during winding & unwinding operation.

Rake Over Travel Limit: additional limit switches are

installed to prevent the rake over travel during its upwardtravel.

The wiper discharging the screenings.Type T Wire Rope Screen working undertyphoon conditions in Taiwan.

Field inspection on the wire rope drumand drive unit.

Factory test on raking operation.

Full scale testing of Type T Wire RopeFront Rake Screen




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General Arrangement of Type T Wire Rope Front Rake Screen



ModelDimensions (mm)

Channel Width Channel Depth Bar Height Slot Width Discharge Level

WSFR 3 - 05 1500 - 3000 1000 - 10000 1000 - 10000 25 - 80 1000 - 2000

WSFR 3 - 10 2000 - 6000 1000 - 10000 1000 - 10000 25 - 200 1000 - 2000

ScreenInclination(degree)

80 / 90

80 / 90

Wiper

Bar Rack

Channel Width

Bar Height

Concrete orSteel Frame

Wiper

Channel Depth

DischargeLevel

Bar Rack

GuideRail

Inlet Flow

Rake

DischargeChute

Dead Plate


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The Fine Stepping Screen (FSS) is a robust unit made in stainless steel 304 or 316.Emphasis has been placed on reliable performance and ease of maintenance. The

screening lamellas are anchored in place along the whole length of the unit ensuringrigidity and accurate spacing. However, the unique fixing arrangement allows for easyexchange of individual blades should the need arise. Standard slot widths for thescreen are 3mm or 6mm with standard screen sizes. Other dimensions are tailored tofit the requirements of the plant.

Application

The FSS designs have been developed using the experience of hundreds of finescreen installations around the world in sewage treatment, sludge and industrial appli-cations. This experience is vital in providing appropriate screening solutions for everysituation.

Advantages

The FSS is long established as a leading solution for the re-moval of solids and fine particles from flows and, in particularwhere difficult materials are involved.

The screen design consists of evenly spaced stepped lamellaswhich trap solids and fine particles but allow liquid to passthrough. The solids build up on the lamellas rotate lifting themat step by step up the screen to be discharged at the top.This lifting action, coupled with the retention time on the screen,produce highly dewatered screenings.

The high open area of the screen and single pass through bythe liquid lead to a high capacity per unit area and low headloss.

Capacity (*)

TypeSlot width

3 mm 6 mm

FSS 15 50 65

FSS 23 70 90

FSS 30 100 120

(*) l/s per 100 mm width

TypeScreen Dimensions (mm)

DH L H HI B

FSS 15 1100 1330 1650 900 300-1000

FSS 23 1675 1795 2305 1200 400-1500

FSS 30 2245 2280 2920 1600 400-1600

Height(H)

Dischargeheight(DH)

HI(waterlevel)

Length (L)

Side and front view with key dimensionsfor a typical FSS fine screen installation.

Dimensions and capacity

The tables above show key dimensions for theFSS screen range (as denoted by the drawing)and typical capacities in litres per second, for rawsewage flows.

The figures are per 100 mm of screen width foreach of the standard sizes and slot widths. 20%clogging of the screen due to the screenings hasbeen assumed and a head loss (difference in wa-ter level before and after the screen) of 200 mm.

Capacities will vary according to the applicationand operating conditions of the unit.



Screen width (B)

Min channel width

FSS 15: B+150FSS 23 & 30: B+180


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The wedge wire Drum Screen (TS) is a pre-treatment fine screen of simplerobust construction with few moving parts. Manufactured completely in

stainless steel, the width of the screen ranges from 300 mm to 1800 mm.The screen is available with slot widths from 0.25 - 1.5 mm. Capacities upto 180 litres per second.

Applications

Domestic waste water

Industrial waste water

Food processing

Abattoirs

Design features

Wedge wire drum

Non turbulent in-flow

Internal self-cleaning design

Stainless steel construction

Optional water-jet flushing system

Operation

Wastewater is passed through the sieve inlets of therotary drum screen. Screenings, which are larger thanthe screen slots, will be blocked and removed by thescraper blade to a container. The influent will then passthrough the sieve and out through the bottom. Particleswhich are not removed by the scraper blade will bewashed away by the filtered water from the wire sieve.This creates an efficient internal self-cleaning system.

Optional

A water-jet spray system can be installed when frequentcleaning is required. It can be fitted with a solenoid valvefor easy control.

Screen Dimensions (mm)

A B C

TS 63 250 DN 100 DN 200

TS 66 554 DN 150 DN 250

TS 612 1139 DN 250 DN 350

TS 618 1882 DN 300 DN 400

Type

1. Drive unit2. Cleaning access3. Liquid outlet4. Screenings

discharge5. Inlet6. Vent

Drum Screens



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5 mm aperture

0

1 0 0

2 0 0

3 0 0

4 0 0

5 0 0

6 0 0

0 2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0

F l o w r a t e ( l / s )

Inletwaterlevel(mm)

3 mm aperture

0

1 0 0

2 0 0

3 0 0

4 0 0

5 0 0

6 0 0

0 2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0

F l o w r a t e ( l / s )

Inletwaterlevel(mm)

Screening zone

The screen consists of astainless steel perforatedbasket in diameters up to500 mm and aperture 3mmor 5 mm. The screenings

are transported using shaft-less screw incorporating aself cleaning brush system.

The ML screw screen offers fine screening, conveying and dewatering in one cost efficient and space saving unit.Every unit is designed according to the flow conditions of the site and the requirements for screening and discharge

height. Easy, dry maintenance is provided through access covers and central pivot. Options include washing ofscreenings and heating and insulation of the pressing zone.

Conveying zoneThe shaftless screw is combined witha high quality wear liner for long lifeand low noise levels. The length ofthe conveying zone is determined bythe required discharge height.

Dewatering zone

The pressing zone, incorporating a flushingsystem, has a perforated plate or wedge wire(optional) construction for optimal dewatering.Dewatered screenings are discharged to acontainer or are further conveyed.

Example curves of capacity for a given inlet water level for screen aperture sizes 3 and 5 mm.Under typical conditions maximum capacity for a single unit is 120 litres / second.

Multiple units can be used for installations with higher flow rates.

Screw Screens


SCS 300

SCS 400

SCS 500

SCS 400

SCS 300

SCS 500


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DH OL L

1250 3360 2655

1500 3795 3013

1750 4230 3370

2000 4670 3725

2250 5100 4085

2500 5539 4440

2750 5975 4975

3000 6410 5158

Screen Dimensions (mm) Machine size(mm)

Min. channel width(mm)

300 360

400 470

500 570

Screw Screens


Dimension H1 and D1 to be confirmedat time of order.

A dimensional drawing together with calculation of the length of the unit for any givendischarge height. Three screen basket diameters are available 300, 400 and 500 mm.

DH

0,573

5

1400

Length (L)

D1

Overa

llLen

gth(OL)

Dischargeheight(DH)

Channelheight

H1

500TWL

35


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Advantages

Shaftless screw conveyors are accepted as the leading

method for the transportation of difficult materials (eg.wet pulp, fibrous or sticky substances). In addition, thefully enclosed system means effective, safe and silenttransportation in a clean and odorless environment.The absence of a shaft and intermediate bearings mini-mizes the risk of clogging.

Application

The thousands of installations ML has completedworldwide include transportations of screenings, dewa-tered sludge, grit and sand from sewage treatment andapplications in the food, chemical and paper and pulpindustries.

Standard Design

The conveyors are produced from standard compo-nents tailored to the requirement of each site. Thetroughs, available in stainless steel 304 or 316, have awear resistant liner selected according to the applica-tion and duty.

Most commonly used are ultra high molecular weightpolyethylene (with optional indicator layer), polyure-thane or hardened steel wear bars. Spirals are manu-factured using speciality steel (or stainless steel) and acold forming technique to optimize strength. Longer orheavier duty conveyors are supplied with inner spiralsto increase axial strength and capacity. Single units upto 20 meters in length can be delivered with push orpull drives depending on the material conveyed.

Options

Feed and discharge are according to the layout ofthe plant, but multiple or regulated discharge isfacilitated through knife gates which can be manu-ally, electrically or pneumatically operated.

Other options for conveyors include pivots, wheelsupports, carriages etc. for radial conveyors; elec-tronic overload protection, motion sensors or tripswitches; gland boxes for wet material and an axialsupport bearing to minimize stress on the drive

unit.

A conveyor, 18.5 m in length, for the transport ofdewatered sludge, Eeklo, Belgium.

A sectionof 480 mmdiameterscrew and

trough.



A radial conveyor installation, Utrecht, Holland.


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A typical layout of a stand alone conveyor with two feed and discharge points.

A cross section view of the trough, screwand liner. Covers and liners can be bolted

or of snap locking construction.

Capacity

Capacity figures represent maximum recommended capacities inm3/h for a conveyor rotating at 32 rpm handling typical dewateredmunicipal sludge. For screenings and similar difficult materials,

typical speed is 12 rpm and capacities are reduced to 20% of thoseshown. Conveyors can be inclined up to 30 although over 20 adouble spiral is recommended.

Spiraldiameter

Dimensions (mm)

A a H h

SC 190 290 230 270 155

SC 285 382 320 365 205

SC 360 476 406 460 255

SC 480 649 539 603 333

SC 580 753 643 725 403

Spiraldiameter

Capacities (m 3/hr) /Angle of inclination

0 10 20 30

SC 190 2.8 2.5 2.1 1.2

SC 285 10 9.0 7.5 4.5

SC 360 20 18 15 8.5

SC 480 40 36 30 19

SC 580 80 72 60 38




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Screw Conveyor with Dewatering Unit (SCD)

Dewateringzone

SCD 480, length 2.5 m

ApplicationShaftless screw conveyors can be supplied with a dewateringzone for removal of liquid and any suspended or dissolvedmatter (e.g. organics) from wet or sticky materials. An increasein the dry solid content and, therefore, volume reduction, in theconveyed material of up to 75% can be achieved dependingon the application.

ML has hundreds of installations of the SCD screw conveyorwith dewatering unit for sewage treatment and industrial proc-esses. The unit is ideal for combination with ML's fine screensfor recovery of organics and drying of screenings.

Standard Design

The dewatering unit, which consists of a fine wedge wirescreen and flushing system can be used with all ML's shaftlessconveyors. A weighted, hinged outlet gate allows effectivedischarge whilst avoiding odour problems. A double spiral issupplied as standard for increased axial strength and capacity.

Options

Additional options, beyond those available for standard con-veyors, include insulation for the dewatering zone and a bag-ging unit for hygienic disposal of material directly into sealedsacks.

Capacity

For standard applications the capacity of the screw conveyor isunchanged by the addition of a dewatering unit.

Fine screens and conveyor, Eeklo BelgiumSCDWscreenings washer



Flexible Solutions

Shaftless screw conveyors are sold as stand alone units, complex integrated systems or together with Sam McCoysrange of screens. Several variations of the basic concept are available including dewatering units, grit classifiers,screenings washer, screw screens and vertical shaftless conveyors allowing for more flexible plant design.


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Screw conveyor with dewatering unit

View of dischargeView from above without cover

Drawings show the dewatering zoneand discharge for the SCD rangetogether with a table of dimensions.

TypeL-SCD(mm)

W-SCD(mm)

Drain(inch)

Spiral end(mm)

SCD 190 609 342 3 300

SCD 285 609 430 3 300

SCD 360 609 508 3 300

SCD 480 1008 630 4 500

SCD 580 1008 740 4 500




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The Grit Classifier is used efficiently for removal of grit orother settable particles with high sinking speed from the

inflow of the Sewage Treatment Plant. It is a simple buteffective equipment for trapping the settled particles andtransporting them efficiently by a shaftless spiral screwconveyor into the collecting skip.

Operation

The Grit Classifier (SD) can be located adjacent to thepoint of collection. The Classifier is designed to receivegrit and water mixture from gravity or pump rising main.The inlet (1) is specially designed to minimize turbulenceof the inflow thus creating an optimum flow pattern forsedimentation to occur. The solids that settle to the bot-tom are elevated at extremely low speeds through ashaftless spiral housed in the trough (5) at an inclined

angle. The settled grit remains in the spiral screw anddewaters itself as it gets elevated until the dischargeoutlet (2). The floating solids and the liquid overflow backto the main sewage channel through outlet (3).

Design Features

Free standing to ease installation and system

arrangement

Fully enclosed for odour control and safety

No lubrication is required

Complete system to be included as a package

No bottom bearing - thus minimizing maintenance

Bolted lid for odour control and opening over the

fluid outlet

Delivered as a complete unit with standard sup-

port

All metal parts except proprietary items are made

from SS 304 (SS 316 available as option)

Spirals made with special steel increasing its

wear and durability characteristics (SS304/316spirals available as options)

Typical grit classifier installation in wastewater treatment plant

Grit Classifiers



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ModelSedimentation

Tank (m2)Nominal ScrewDiameter (mm)

EstimatedCapacity (l/s)

SD 190/1.25 1.25 190 10SD 285/2.1 2.10 285 20

SD 360/2.4 2.40 360 22

SD 360/3.0 3.00 360 27

1. Inlet

2. Outlet Sand-SquareOpening

3. Outlet Fluid

4. Sedimentation Tank

5. Screw Trough

6. Drive Unit

7. Support

8. Drainage

Grit Classifiers


ModelDimensions (mm)

A B C D E F G H I J K L M N

SD 190/1.25 4000 550 490 1510 1010 2070 206 1435 1200 1110 350 800 150 210

SD 285/2.1 4500 700 600 1860 1310 2500 180 1750 1440 1390 480 1000 200 300

SD 360/2.4 5000 700 691 1997 1700 1543 152 1800 1440 1325 500 1100 275 380

SD 360/3.0 5917 700 700 2405 1975 3153 152 2100 2020 1325 500 1100 275 380


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The Rotary Drum Thickener is designed to concentrateor thicken thin sludge with solids content as low as 0.3%. By reducing very considerably the volume of thesludge it increases the capacities of existing treatmentequipment or reduces the size of proposed new installa-tions.

The Rotary Drum Thickener has virtually no limitationsas to the type of sludge which it will dewater. We detaila few examples below :-

Primary Sludge

Digested Sludge

Activated Sludge

Mixtures of any of the above

Industry Sludge

In the case of dewatering sewage sludge, they must befirst flocculated in a Reactor (Polymer Floc Tank) andthen fed gently through the slowly rotating thickeningdrum. The free water drains through the steel or polyes-ter mesh by gravity. With the very high solids capturerate of 98% plus the filtrate can be recycled for use inthe spray water system which is required for the con-tinuousmesh cleaning, thereby removing the require-ment of a fresh water supply.

The Rotary Drum Thickener is a development of theconventional gravity thickeners with regards to con-struction and process and is a fully automatic and con-tinuous system.

Advantages

Cost Effective

All moving parts slow moving

Small area requirement

Energy efficient

Environmentally friendly

All stainless steel construction, if required

Totally enclosed

Easily removed panels

Gear drive with slew ring bearing

Applications

As a concentrator in sludge thickening process For pre and post thickening of digested sludge

As a pre-dewaterer before belt filter press

For the separation of floating sludge

As a fine screen when fitted with a different filter

media

As a Milliscreen when fitted with a wedge wire

drum

Standard Materials of Construction

Main frame and legs - mild steel-anti corrosion treatedRotary drum - stainless steelFilter mesh - stainless steel or polyester cloth

Covers - stainless steel or mild steel-anti corrosiontreated

ModelCapacity

m3/hr

SprayWaterm3/hr

DrumLength

mm

MotorkW

UnitLength

mm

T28 13 1.6 1600 0.75 2100

T38 24 2.4 2400 1.1 3000

T48 40 3.2 3400 1.1 3900


Other Equipment


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Z 2000 Bottom Sludge Scraper

The Z 2000 hydraulic scraper is a bottom sludge

scraper specially designed for continuous transportationof sludge. Z 2000s have been used with success in anumber of different types of sedimentation system.

The scraper consists of an hydraulic piston inside acylinder, a lever system and a number of wedge-shapedsections welded together to form a single unit so thatthey function as a moving floor over the bottom of thetank.


Other Equipment

The forward and return movement of the sections ispowered by the hydraulic system. When the sectionsmove forward, they transport the sludge with them tothe sludge pit. During the return movement, the pointsof the wedges slide under the blanket of sludge, so thatits top layer flows over them. The speed of the returnmovement is approximately three times that of the for-ward movement, to give continuous transportation ofthe sludge.

Where the sludge has such a low total solids content

that no blanket is formed, the sections scrape a streamof sludge along the bottom of the tank. The repeatedmovements of the sections have the effect of thickeningthe sludge, thus increasing its total solids content whileat the same time guiding it towards the sludge pit.

Easy to adapt for use in existing tanks

The design of the Z 2000 allows considerable latitudewhere positioning of the hydraulic cylinder is concerned.Whether drawn or propelled, the scraper will producethe same results. It is even possible to position the cyl-inder horizontally below the surface of the water, inwhich case the number of moving parts is reduced fromfour to one.

Nor does the bottom of the tank need to be level for theZ 2000 to produce good results. It should, however, beeither horizontal or slope towards the sludge pit.

Simple to install, simple to maintain

The design and structure of the Z 2000 has been kept

as straight forward as possible, which means that it issimple to install. No lifting devices or other complicatedequipment are required.

Components for standard scrapers are always held instock. This means that we can install a completely newstandard scraper in the course of 1-2 weeks. The totaltime taken to install a 20 x 6 m scraper on site is usually2-3 working days.

The maintenance required is minimal. The few movingparts and small forces involved mean that the strains towhich the scraper is subjected are also small. There isrelatively little friction between the scraper and the bot-

tom of the tank, since the sections run along stripsmade of high-density polythene. The power required todrive the scraper along the bottom of the tank is verylow, and the hydraulic unit operates at low pressure.These factors make for sensitive operation and longeconomic service life.

Except for the strips, all materials submerged in thewater are stainless steel.

A hydraulic unit for operating two scrapers. Theunit can be positioned either outdoors or undercover. Outdoor installations can be fitted with

weatherproof housings and heaters.

The sections are welded together to form a singleunit, so that they function like a moving floor over

the bottom of the sedimentation tank.


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Applications

Sludge types

Dimensions (maximum)Mode of operation

Gap between sectionsHeight of sections

Materials

Advantages

Rectangular sedimentation tanks in local authority waste water treatmentplants, drinking water purification plants and industrial waste water treatmentplants. Also suitable for use in conjunction with lamella systems or in flota-tion tanks.

TECHNICAL SPECIFICATIONS Z 2000

Suitable for use with most types of sludge with a dry solids content of 0,5%to 8%

Length = 80 m and Width = 12 m, maximum scraper area = 750 m2

A predetermined number of sections are attached to either 3 or 5 flat steelbars, and the whole is then welded together to form a single unit resting onslides. By means of a system of levers attaching the scraper to the hydraulic

cylinder, the whole scraper slides gently forward approx. 700 mm, transport-ing the layer of sludge in the direction of the sludge pit. The scraper thenreturns at approx. three times the forward movement. During the returnmovement the sections slide under the blanket of sludge so that the sedi-mentation process is not interrupted. The result is continuous transportationof sludge in the direction of the sludge pit.

650 mm

50 mm

Stainless steel (AISI 304) or acid-resistant steel (AISI 316)

Few moving parts

Very little maintenance required

Continuous transportation of sludge

No interruption in sedimentation process

Reliable operation

Easy to adapt for use with existing tanks

Functions to thicken certain types of sludge


Other Equipment

Typical arrangement of a scraper profile. Drive mounting of a Hydraulic cylinder.


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Other Equipment

Only the blade itself comes into contact with thesurface of the water. On reaching its limit position, afteremptying the sludge the blade is angled up for itsreturn movement. Several blades in series can beinstalled in one and the same tank.

Z 3900 Surface Sludge Scraper

The Z3900 sludge scraper is designed for efficientremoval of surface sludge with a minimum oftransportation water. It is suitable for use in mostapplications in which surface sludge occurs, includingboth local authority wastewater treatment installationsand industrial process waste water treatment systems,and is easy to adapt for use in flotation tanks or wherelamella systems are in use. The scraper is simple toinstall, is reliable in operation and has few moving parts.The scraper blade draws off the whole of the tankssurface, transporting the sludge to a scum pipe ortrough.

The Z3900 is characterized by its step-by-stepmovement. The drive bar moves forwards and returns,the blade being fastened to a slide that is moved

forward stage by stage by the drive bar. A system oflevers on the slide changes its direction of movementwhen it reaches its end position. Thus its possible toinstall several blades in series in one and the sametank, the sludge being passed from one blade to thenext on its way to the scum pipe. Each blade is angledupwards 90during its return movement, to ensure thatsludge does not accompany it.

Applications

Sludge types

Dimensions (maximum)Surface area

ClearanceVariation in water level

Materials

Advantages

For use in rectangular sedimentation tanks in local authority waste watertreatment plants, drinking-water purification plants and industrial processwaste water treatment plants. Also suitable for use in combination withlamella systems or in flotation tanks.

TECHNICAL SPECIFICATIONS Z 3900

Suitable for use with most types of sludge.

Length = 80 m and Width = 12 m, maximum scraper area = 700 m2

In principle, the surface area scraped is the same as the surface area of thetank, there being only a small area at the inlet end that is left unscraped.The scraper scrapes the remainder of the surface area from side to side andright up to the outlet.

The Z 3900 requires approx 400 mm clearance above the surface of the water

Standard 25 mm

Stainless steel (AISI 304) or acid-resistant steel (AISI 316)

Few moving parts

Minimum of maintenance required

No interruption of the sedimentation process

Easy to adapt for use in existing tanks

Adjustable speed

Separate regulating and control equipment

Easy to service


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Covers are custom-built to provide non-corrosive, lightweight solutions to odour control and health and safety prob-lems resulting from tanks, aeration lanes, channel, pumps and other plants. Covers may be flat, pitched or scalloped

dome, segmental or one-piece, for any shape of tank. All covers are self-supporting. Walkways, access hatches,fittings for process equipment and odour control units can be incorporated to suit the application. In addition to newbuild, precise retrofits are also undertaken.

ROTATING COVER on 20m tank with half bridge scrapper in foregroundand BEAM AND INFIL COVER to 20m tank to rear.

COVERS to a 23m x 42.5m aeration carousel with two 12m balance tanks to rearand 7m sludge holding tank in the foreground

CONICAL COVER to 12m tank COVERS to grit detritor and inlet worksshowing standards access hatches


Other Equipment


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Flygt's range of submersible aerators adopts a superiorproven technology in handling municipal and industrialwaste water. Adapted and modified to local and interna-tional conditions, the Submersible Aerator has been inuse for a number of years.

A Simple Principle

In every Flygt Submersible Aerator, a star-shaped turbineimpeller draws in air via a flanged air intake pipe. At thesame time, water enters through openings between themotor and aerator housing. This becomes thoroughlymixed with the incoming air before being discharged athigh speed through a radial series of diffusers.

A Better Solution

Flygt Submersible Aerators have distinct advantages over

more traditional systems. Oxygenation efficiency is ex-ceptionally high. There is also a good degree of flexibilitytoo, as the range of units available ensures that whateveryour operating conditions, we can offer the right oxygena-tion capacity. Most importantly, the aerator's major com-ponents are 100% stainless steel.

Fields of Application

Activated Sludge Plants To replace existing aeration equipment during breakdown or long term maintenance.

To create and maintain a viable biological treatment capability in new plants.

Industrial Effluent Treatment Plants

To upgrade existing treatment capacity without major capital investment.

To create and maintain a viable chemical and biological treatment capability in new plants.

Fish Farms

To increase oxygen levels vital for successful fish breeding.

River and Surface Water

To meet emergency oxygenation requirements.

To generally upgrade water quality.

Installation

The Submersible Aerator is normally installed in a stationary position at the bottom of the aeration tank, where it issupported by its own weight, its low centre of gravity ensuring greater stability. Alternatively, it can be attached toa float or raft for the aeration of lakes, pools, large lagoons and rivers. In both instances, the units can be easilyinstalled or removed for periodic maintenance and inspection.


Other Equipment

Advantages at a Glance

Significant energy savings resulting from high oxygen transfer efficiencies plus intensive

agitation during operation.

Ease of installation and maintenance.

Reduced likelihood of blockage.

Low noise disturbance due to submerged operation.

No health hazard from splashing of waste water.

All weather operation.


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TECHNICAL SPECIFICATIONS

Dimension & Weight - Standard Units

ModelPower

kWCurrentAmps

Dimensions (mm)

A B C D E

SA 308 2.4 4.5 530 623 50 720 916 67

SA 310 4.4 8.5 618 623 50 720 916 96

SA 312 5.9 11 656 845 80 833 1047 140

SA 315 13.5 25 948 900 100 1176 1450 354

SA 320 22 40 1327 1083 125 1600 1956 491

SA 323 30 54 1368 1222 150 1660 2057 525

Weightkg

Materials

Aerator

Bottom Plate AISI 304

Top Plate AISI 304

Motor Ring AISI 304

Motor Ring Sup-port

AISI 304

Collar AISI 304

Wear Ring Bronze

Impeller AISI 304

Nuts & Bolts AISI 304

Stand AISI 304

Nylon 6 (SA308,SA310, SA312, SA315)

AISI 304 (SA320,SA323)

Diffuser Parts

Electric Motor Squirrel Cage Class F Insulation

Mechanical Shaft seals

SA308 Upper - Carbon/CeramicLower - Ceramic/Ceramic

SA310 Upper - Ceramic/GraphiteLower - Carbide/Ceramic

SA312 Upper - Carbon/Tungsten CarbideLower - Tungsten Carbide/

Tungsten CarbideSA315 Upper - Carbon/Tungsten Carbide

Lower - Tungsten Carbide/Tungsten Carbide

SA320 Upper - Carbon/Tungsten CarbideLower - Tungsten Carbide/

Tungsten CarbideSA323 Upper - Carbon/Tungsten CarbideLower - Tungsten Carbide/

Tungsten Carbide

CasingCast Iron BS 1452 GR 14(Finish Black Chlorinated Rubber Paint)

Motor Shaft Stainless Steel/Steel

O-Ring Nitrite Rubber (70 C IRH)

BearingsUpper - Single RowLower - Double Row

Motor Data


Other Equipment


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Floating Aerator

Guide Rail Installation with Quick Air Coupling Device

ItemNo.

Qty Description

1 1 Lifting Chain

2 1 Air Inlet Filter/Silencer

3 1 Flygt Submersible Aerator

4 1 Flygt Lifting Davit

5 1 Power Cable

6 2 Guide Rails

7 1 Air Inlet Pipe

8 1 Quick Air Coupling Device

ItemNo.

Qty Description


2 1 Flexible Air Intake


4 1 Power Cable

5 1 Float

6 1 Wire Rope

7 1 Support

8 1 Float For Suction Hose


Other Equipment


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Installation of Submersible Aerator - Free Standing

ItemNo.

Qty Description

1 1 Lifting Bracket

2 1 Handrail

3 1 Grating Platform

4 1 Bridge


6 1 Lifting Frame

7 1 Lifting Chain

8 1 Power Cable

9 1 Air Pipe


11 2 Guide Rails


Other Equipment


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25


Other Equipment

Flygt Submersible Aerator

POWER CONSUMPTION

Air under atmospheric pressure (50 cycles)

0

5

10

15

20

25

30

35

1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

Submergence (m)

Consult factory for submergence more than 3.5 m

Pow

erConsumption

(Kw)

308310

312

315

320

323


OXYGEN TRANSFER


0

5

10

15

20

25

30

35

40

45

1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

Submergence (m)


OxygenTransfer(Kg/hr)

308310

315320

323

312


ASPIRATION RATE


0

50

100

150

200

250

300

350

400

450

1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

Submergence (m)


As

pirationRate

(m3/hr)

308

310

312

315

320

323


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Bagfill

an enclosed bagging system for the containment and easy

handling of sludge cake from the small and medium size dsewage treatment plant.

for a safer and improved working environment

The man handling of sludge cake is a well known environmentaland health problem in small and medium sized sewage treat-ment plants. Even with improved ventilation in most screeningand press building, a high concentration of bacteria and fungusspores can develop. These factors can produce poor air quality;this can lead to an unhealthy working environment and result inincreased proneness for chronic asthma, allergies and diseasesin the pulmonary tissues and the intestinal tract.

Bagfill solves this problem in both a practical way and efficient

way. Bagfill consists of an enclosed bagging system, which canbe easily connected to the discharge point of your machine. Thesludge cake is deposited into the continuous Bagpac bag, whichalso provide odour containment. The Bagpac is easy to seal,with the sludge cake and odors trapped inside the Bagpac bag,and can be safely man handled for disposal.

Technical Data

System Parts : Bagfill. The cassette holder is manufactured in stainless steel and ABS plastic. It isdesigned to fit on any discharge chute with an out side diameter of 150 mm up to 400 mm.

Bagpac. The cassette contains 80 meters of continuous bagging hose, manufactured in

environmentally friendly polythene that can be incinerated without any hazards.

Bagfill 1Cassette holder designed for mounting to a machinewith a horizontal discharge.

Bagfill 2Cassette holder designed for mounting to a machinewith a vertical discharge.

Bagging Systems

Other Equipment


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Bagstand

a bag system for rational waste management

economical, practical, hygienic and environment-friendly

Bagstand is available in two sizes, type 90 and type 56.Both sizes are also available in wall stand versions.

The floor stand is fitted with wheels, and the cassetteholder is hinged and can be pivoted in both the floorstand and wall stand versions for easier waste disposaland bag sealing.

Bagstand is manufactured in stainless steel, aluminiumand plastic.

Economical because the bags are dimensioned by theircontents. Lots of refuse - large bags, small amount ofrefuse - small bags.

Practical because each cassette is 40-60 m in lengthfor type 56 and 70-100 m in length for type 90, whichavoid the needs to look for new bags after eachchange. The bag is easy to seal using wire clips.

Hygienic because your hands never need to come intocontact with the refuse.

Environment-friendly because the cassette is made ofpolythylene.

Type 56(Stand, height 80 cm)

Type 90(Stand, height 98 cm)

Type 56

Type 56

Bagging Systems

Other Equipment


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Sam McCoy Mfg_Catalogue 2004_2

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