“Preparation of general arrangements engineering drawings of ... drawing...“Preparation of general arrangements engineering drawings of energy efficient typical top fired pusher

“Preparation of general arrangements engineering drawings of energy efficient typical top fired

pusher hearth re-heating furnace with furnace oil firing”

for the project

“Upscaling energy efficient production in small scale steel industry in India”

Submitted to:

United Nations Development Programme

55, Lodhi Estate, New Delhi 110003

Submitted by:

Mr. V. B. Mahendra,

Director

ENCON Thermal Engineers (P) Ltd.

Submission on:

10th May, 2014

1

ABBREVIATIONS:

mm millimeter tph tonne per hour kg/h kilogram per hour l litre l/h litre per hour l/t litre per tonne nm3/h Normal cubic meter per hour kW kilo watt NB nominal bore mmWC millimeter of water column Rs. Indian Rupee

2

CONTENTS

EXECUTIVE SUMMARY………………………………………………………………………………………………4

1. INTRODUCTION………………………………………………………………………………………………...5

2. FURNACE DESIGN PARAMETRERS……………………………………………………………………..5

3. ENERGY EFFICIENT MEASURES IN THE RE-HEATING FURNCAE……………………….10

4. COST CONSIDERATION…………………………………………………………………………………….11

5. PERFORMANCE INDICATORS AND PAY-BACK…………………………………………………..11

6. GENERAL ARRANGEMENT DRAWING: LAYOUT & AUXILIARY…………………………..13

7. GENERAL ARRANGEMENT DRAWING: STRUCTURAL………………………………………..14

8. GENERAL ARRANGEMENT DRAWING: PIPING NETWORK ………………………………..15

9. GENERAL ARRANGEMENT DRAWING: REFRACTORY LINING……………………………16

10. P & I DIAGRAM………………………………………………………………………………………………...17

11. SINGLE LINE DIAGRAM……………………………………………………………………………………18

12. GENERAL ARRANGEMENT DRAWING: RECUPERATOR…………………………………..…19

13. GENERAL ARRANGEMENT DRAWING: CHIMNEY……………………………………………...20

LIST OF TABLES

Table 1: Design parameters of the furnace ......................................................................................... 6

Table 2 : Productivity of the furnace for MS billet heating ................................................................ 6

Table 3 : Broad dimensions of the furnace .......................................................................................... 7

Table 4 : Details of combustion system ............................................................................................... 7

3

EXECUTIVE SUMMARY

UNDP in association with Australian Aid Programme & Ministry of Steel, Government of

India is implementing a project titled “Upscaling energy efficient production in small

scale steel industry in India”. The objective of this project, which was launched in July

2013, is to scale-up adoption of energy efficient technologies in small scale steel

industry in India. In line with project’s continuous endeavor to provide inputs on energy

conservation, a typical design of re-heating furnace, based on pulverized coal as fuel,

was developed.

Re-heating furnace was designed based on most commonly prevailing operational

practices in small scale steel industry in India. The basic design has been carried out

considering “state of the art” technology and accessories. The capacity for design was

considered as 15 tph as it was the mean average of varying capacity of re-heating

furnaces in small scale steel industry in India and to provide inputs to larger section of

the sector on ideal scenario. The overall designing and development of general

arrangement drawings were done by aiming the best possible specific furnace oil

consumption of 32 l/t. Further consideration on design of various systems of re-heating

furnace is depicted in below table.

Parameter Design consideration

Heat load & location of burners

To attain temperature of 1250 OC in soaking zone &

heating zone-1 and 850 OC in preheating zone

(unfired zone)

Combustion air supply system To achieve flow of 7,000 nm3/h & discharge

pressure of 1,000 mmWC

Flue gas system To overcome hydraulic resistance of its path &

attain required draft

Waste heat recovery system To achieve combustion air temperature of 400 OC

after waste heat recovery system

Refractory & insulation

To attain skin temperature of furnace close to

ambient temperature and to achieve targeted

specific fuel consumption

4

As compared to conventional furnace oil fired furnace, this energy efficient furnace

would ensure saving of atleast 8 l/t in specific furnace oil consumption. And such saving

is projected by incorporating various energy conservation measures in re-heating

furnace viz. installation of PID controller system for air fuel control ratio in soaking zone

& heating zone-1 and on-off control system in heating zone-2, waste heating recovery

system, optimum refractory & insulation etc. Overall investment for installing energy

efficient furnace is arrived at by considering prevailing market rates for various

equipment, structural steel & civil works. It is estimated that the investment for re-

heating furnace can be recovered in 26 months and such calculation is done by

considering difference in specific fuel consumption of conventional furnace & energy

efficient furnace.

5

1. INTRODUCTION

1.1 Background:

UNDP in association with Australian Aid Programme & Ministry of Steel,

Government of India is implementing a project titled “Upscaling energy efficient

production in small scale steel industry in India”. The objective of this project, which

was launched in July 2013, is to scale-up adoption of energy efficient technologies in

small scale steel industry in India.

The project seeks to facilitate the diffusion of energy efficient low carbon

technologies in the Steel Re-rolling Mill (SRRM) sector to bring down end-use energy

level, improve productivity and cost competitiveness, and to reduce associated

emissions of Green-House Gases (GHG) and related pollutant levels. There exists

enormous potential for energy efficiency measures in the existing units and the new

units. Almost 70% of the energy (thermal energy) is consumed in re-heating furnace.

Thus the re-heating furnace forms the key area for energy efficiency intervention in a

typical SRRM unit.

Considering a large potential for energy conservation in the SRRM sector, the

project has identified a number of energy efficient technology options & packages,

suitable for implementation in the small and medium scale SRRM sector. One of the core

objectives of this project is to create an access for adopting energy efficient technologies

for the SRRM units.

In view of the above, general arrangement drawings (with dimensions) for

typical energy efficient furnace with furnace oil as fuel has been prepared, which will

help to proliferate energy efficiency measures by extending support & facilitating

knowledge inputs to the SRRM units and allow them to adopt energy efficiency in re-

heating furnace area.

2. FURNACE DESIGN PARAMETRERS 2.1 Design criteria:

A capacity of 15.0 TPH has been considered for designing the furnace. Nominal

capacity of the furnace is related to (i) Size of the billets, (ii) Discharge temperature, (iii)

Permitted temperature gradient across the billet height, (iv) Type of material (thermal

conductivity) and (v) Heating regime. Therefore, the furnace has been designed taking

6

into consideration, certain typical operational practices prevailing in the SRRM sector.

The basic design data considered are as below:

Table 1: Design parameters of the furnace

Sl. No. Parameter Unit Dimension

a. Design capacity of the furnace tph 15

b. Biller cross-section mm 100X100X1500

c. Material - MS Grades

d. Discharge temperature OC 1100.

e. Permissible temperature

gradient from top to bottom

OC < 30

f. Fuel - Furnace oil with the following

composition by weight (%):

C=84.7; H2=11.7; O2=0.8; N2=0.4;

S=0.4; Water content=0.2%

2.2 Discharge Capacity of the Furnace:

Depending up on the variations of the input parameters, the discharge capacity

can be higher or lower than the specified 15 TPH, as mentioned in table 2.1 below:

Table 2 : Productivity of the furnace for MS billet heating

Billet CS,

mm

Produ

ction

rate,

t/h

Dischar

ge

temp, OC

Temp

grad, OC

Heating regimes, OC

Pre heating Heating Soaking

100X100 15.5 1,130 15.0 850 to 1,050 1,150 to 1,250 1,230 to 1,240

100X100 18.5 1,117 25.6 850 to 1,050 1,150 to 1,250 1,230 to 1,240

125X125 15.5 1,130 21.6 850 to 1,050 1,150 to 1,250 1,230 to 1,240

1 125X125 18.5 1,101 38.0 850 to 1,050 1,150 to 1,250 1,230 to 1,240

7

The furnace can also be used for heating of alloy and SS grades. However, in such

case production capacity will be lower.

2.3 Broad dimensions of the furnace:

The broad dimensions of the furnace are given below:

Table 3 : Broad dimensions of the furnace

Sl. No. Parameter Unit Dimension

1. Overall length of the furnace m 20.23

2. Effective length of the furnace m 17.38

3. Length of the soaking zone m 3.20

4. Length of the heating zone (two control zones

heating Zone-1 = 4.0 & heating Zone-2 = 3.6) m 7.6

5. Length of the pre-heating zone m 6.58

6. Overall width of the furnace m 4.982

7. Inside width of the furnace m 3.6

8. Height of the roof above the hearth

At soaking & heating zones

At pre-heating zones (unfired zone)

mm

1,250

850

2.4 Type of roof: Flat roof with hanger bricks 2.5 Combustion system:

The combustion system is divided into three zones viz. soaking zone, heating

zone and pre-heating zone. Details are below:

Table 4 : Details of combustion system

Sl. No. Parameter

1. Total heat load as per the heat balance: 510 kg/h of furnace oil

2. Designed heat load : 600 kg/h of furnace oil

8

Sl. No. Parameter

3. No. of burners:

Soaking zone: 4 (Size: 45 l/h )

Heating zone-1: 6 (Size: 40 l/h )

Heating zone-2: 4 (Size: 40 l/h )

4. Location of the Burners:

Soaking zone : On the discharge end wall

Heating zones: On the side walls; 5 burners on each side with staggering

arrangement.

5. Types of burners: IIP ENCON Film burners have been considered which

works on low excess air with a large turn down ratio. They have a long and

bushy flame which is most suited to such applications. In general, a saving of

5%-10% in such applications can be achieved over the normal LAP burners

6. Combustion air supply: Combustion air will be supplied by a centrifugal fan

of below specifications:

Capacity of the fan: 7,000 nm3/h

Discharge pressure: 1,000 mmWC

Motor capacity: 35 kW

7.

Pipelines: Pipelines for supply of combustion air are designed with sufficient

reserve capacity so that pressure drop will meet the blower discharge

capacity. Pipeline layout is done for easy access to orifices and control valves.

The dimensions for various pipelines are as follows

Air pipeline (main header): 600 NB

Air pipeline (branch pipes for burners): 1. soaking zone: 300 NB

2. heating zone-1: 350 NB

3. heating zone-2: 250 NB

Oil pipeline (main header): 40 NB

Oil Pipeline (branch pipes for burners): 25 NB

8. Flue system: Exhaust system for evacuating flue gases is designed taking

into account the hydraulic resistance of the flue path, as envisaged in the

general layout.

Flue port is taken from the roof and the flue line will be above the ground

9

Sl. No. Parameter

level. The flue duct before the recuperator is insulated with ceramic fibre

board inside for minimizing heat loss.

For 15 tph furnace, the dimensions of flue duct is :

Circular 1,250 mm Dia

The chimney has been designed considering pollution control norms’. The

broad dimensions of the chimney are as follows:

Height : 33,000 mm; Dia:1,000 mm

9. Waste heat recovery: Waste heat recovery is done through a convective

type two pass metallic u-tube type recuperator with a capacity for preheating

air to a temperature of 4000C. The recuperator will be located above the

ground level. Detailed specifications are provided in the recuperator drawing

10. Refractory & insulation: Refractory & insulations forms a major role in

minimizing heat losses from the side walls and roof. An optimum refractory

& insulation pattern has been suggested to minimize the heat loss due to

radiation.

High temperature zones (soaking & heating zones): For the soaking and

heating zone sidewalls, a refractory lining consisting of 230 mm thick H.H.D.

firebricks (60% Alumina) followed by 115 mm thick light weight firebricks

(hot face insulation) backed by 115 mm thick Mica insulation bricks (cold

face insulation) backed by 75 mm thick Calcium Silicate block insulation has

been considered.

Low temperature zones (Preheating Zone): For the pre-heating zone, 230

mm thick H.D. firebricks (50% Alumina) backed by 115 mm thick light

weight firebricks (hot face insulation) backed by 115 mm thick Mica

insulation bricks (cold face insulation) backed by 75 mm thick Calcium

Silicate block insulation has been considered.

Roof: For the re-heating furnace roof, high alumina firebricks 58% Al2O3 340

mm for anchored bricks and 225 mm for unanchored bricks partly backed by

65 mm thick Ceramic fiber blanket (128 kg/m³), 50 mm thick insulation

castable and 50 mm thick Calcium Silicate block insulation has been

considered.

10

Sl. No. Parameter

11. Control system: The furnace has been provided with controls for the

following.

1. Temperature control for all the three zones

2. Air to fuel ratio control.

3. Furnace pressure control

The furnace has been designed with three control zones. All the three zones

will be with controls for temperature and air to fuel ratio. The control

strategy is on proportionate basis for soaking zone and heating zone 1. For

the heating zone 2, ON-OFF control strategy has been used. All the burners of

this zone will be either in full firing mode or will be in totally off mode. By

this firing strategy, cost will be minimized. The furnace has been provided

with pressure control. All the instrumentation system will be located in a

separate control room.

3. ENERGY EFFICIENT MEASURES IN THE RE-HEATING FURNCAE

Furnace design is based on the scientific calculations using established

mathematical models. Some of the energy efficient measures incorporated in the design

are:

● Furnace length has been determined by heat transfer calculations. The

furnace length chosen is neither too large nor too short. This selection will

minimize cost and flue gases will be available at recuperator entry with

good temperature for preheating the combustion air to 400 OC.

● Soaking zone firing will be axial and heating zones firing will be on the

side walls. The location of the burners will create good turbulence and

heat transfer inside the furnace.

● Three firing zones are chosen so that one firing zone (heating zone 2) can

be stopped during short delays for minimizing fuel consumption. This

zone is provided with ON-OFF control for easy operation and monitoring

by the operators.

● Low thermal mass and low conductivity ceramic fiber is used as back up

insulation for walls and total roof insulation in the preheating zone. This

measure will minimize heat losses through walls and roof.

● PID based control system is provided in the design for precise control of

temperatures in all the zones. This will provide temperature regimes for

different operating conditions.

11

● Furnace pressure control has been envisaged for elimination of ingress of

cold air into the furnace. Ingress of cold air not only cools down the

furnace leading to higher fuel firing but also damages various equipments.

● Chimney height is selected for evacuating all the flue gases through the

flue line with recuperator. This will ensure preheating of combustion air

to the designed level of 400 OC.

Optimum refractories and insulation has been suggested to minimize the

radiation heat loss from the side walls and roof.

High efficiency U-tube type cross-flow metallic recuperator has been

suggested to maximize the combustion pre-heat temperature thus leading

to optimum fuel consumption.

4. COST CONSIDERATION

The furnace cost consideration and its difference vis-à-vis a typical re-heating

furnace of similar capacity is provided below:

(i) Control System: Expenditure towards control system will be about Rs

20.0 lakhs. Benefits of this facility are (a) reduction of fuel consumption

by about Rs 15.5 lakhs and (b) reduction of burning losses about Rs 20.0

lakhs annually.

(ii) Better insulation of walls will lead reduction of heat losses through walls

by about 1.25% of heat input. This reduction will lead to a benefit of Rs

9.0 lakhs annually. Additional cost of 75mm thick calcium silicate

required for reducing heat losses through walls will be Rs 0.65 lakhs.

(iii) Through high performance recuperator air preheat temperature can be

increased by about 150 OC. This increase in air preheat temperature can

be realized by an investment of Rs 8.0 lakhs, which is likely to give a

benefit of Rs 40.0 lakhs.

The total cost will of the energy efficient re-heating furnace will come to approx.

Rs 1.85 crore.

5. PERFORMANCE INDICATORS AND PAY-BACK

On successful operations the furnace will be rated to produce within 10% of its rated capacity.

The specific fuel consumptions shall be within 32 l/t of steel heated,

during normal operation of the furnace.

The availability of the furnace will be over 90%.

The hearth life will be more than 2 years and the roof life will be around 3

years.

Scale losses shall be less than 1.5% in ingots and 1.25% in billets.

12

Compared to typical furnace, the saving potential envisaged for the energy

efficient furnace is approximately 20%. Considering specific fuel

consumption of 40 l/t in a typical furnace, conversion to energy efficient

furnace will lead to a saving of 8 l/t.

Considering the cost of furnace oil at Rs 40 / l, the investment towards

energy efficiency can be recovered within 26 months.

06

800

800

TYP

665 1200 600

INSPECTION DOORDISCHARGE DOOR

845

BURNER1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200

1600 1600 2000 16001735 3200

1291

4982

800

1291

12503105

1083

772

600 1550 (TYP)

20395

INSPECTION DOOR INSPECTION DOOR

13000

CASTABLE150 MM THK. 14

3300

0

X

EL. + 500

Д/6..

2000 PCDД00..

2800 SQ.

INSULATION100 MM THK.

Д//.

.

CJ, ç.,.

3500

17

16

300

813

18

200 19

HYD. CYLINDER

Д/4

4

OIL NIPPLE

G.M. BUSH

1300

HYD. CYLINDER

1490

170

2820

?GP NGNC Д4.7V2,3 KK RFI,

2800

2883

2049 1100 16500

2334

Д//.

.

Д//..

12

20

19

500

750

1000

300

AIR PIPE 150 NB

OIL LINE 25 NB

AIR

PIPE

600

O.D

X5

MM T

HK.

950

950

OIL LINE 25 NB

OIL RETURN LINE

950

950

15

TO OIL PUMPING & HEATING STATION

INSPECTION DOOR

DISCHARGE DOOR

7250

500

AIR HOSE PIPE 34" NB X1 Mtr. LONG

EL. + 575

CJ, ç.,. MGJ NGNC Д26V3 KK RFI,FROM H & P UNIT

EL.+3730

950950

EL. + 3985

EL. + 2750OIL PIPE 3/4 NB

EL. + 3155

829

576

SECTION : A-A

?GP NGNC Д 1/.V3KK RFIOIL PIPEД26V03

AIR PIPEД 0/.V3KK RFI

CERAMIC FIBRE 4" THK

CERAMICFIBRE 4" THK

CERAMIC

FIBRE 4" THK

17380

20195 800 1760

EL.-1500

2 Nos.COMBINATION VALVE 12" 21

DESCRIPTION

DISCHARGE DOOR LIFTING ARRANGEMENT8

43

7

56

1S.NO.

2 AIR BUTTERFLY VALVE 4" NB

Y-STAINER 3/4 NBGATE VALVE 3/4 NB

IIP ENCON FILM BURNER 4A FRONT SIDE

OIL MICRO VALVE 3/4 NBIIP ENCON FILM BURNER 4A SIDE WALL DISCHARGE DOOR

CONTROL DISK FOR PUSHER

1716

1918

20

109

14

1211

15

CHARGING DOOR (WINCH OPERATED )HYD. CYLINDER FOR DISCCHARGE DOOR

HYD.POWER PACK FOR PUSHER

HEATING & PUMPING UNIT 48 kw

CHARGING DOOR LIFTING ARRANGEMENT

DAMPERCHIMNEY

RECUPERATOR ( 70 F S )

BLOWER (35 kw/1000" WC.)

PUSHER

2 Nos.

14 Nos.14 Nos.

2 Nos.

14 Nos.5+5Nos.

04 Nos.QTY.

14 Nos.

1 No.1 No.

1 No.2 Nos.2 Nos.

1 No.2 Nos.

1 No.

1 No.1 No.

1 No.

MAN HOLE

2322

27262524

EJECTORCOMBINATION VALVE 8"

CONTROL DISK FOR EJECTOR

INSPECTION DOOR

BUTTERFLY VALVE 14" NB

1 No.1 No.

04 Nos.1 No.

1 No.1 No.

Ref. DRAWING NO.

13 FLUE UPTAKE

UHRGUD A@MCGT L@GDMCQ@ 'BNMRTKS@MS(

UNDP15 TPH REHEATING FURNACE WITHFURNACE OIL FIRING

GENERAL ARRANGEMENT: LAYOUT & AUXILIARY

PLAN

ELEVATION VIEW

1805 5505

Д/...

-BLOWER 35KW, 1000MM WC

17380

AIR PIPE 150 NBAIR PIPE 150 NB

INSPECTION WINDOW

CJ, ç.,.

VIEW -X

M C 150X75

MOTOR

WIRE ROPE DRUM

1350

EL. + 300

2820

?GP NGNC Д3.7V2,3KK RFI

1970

CASTABLE150 MM THK.

875

457611400

11

1651

4982

3680

1830

01

01

05

04

0727

06

09

08

11

10

23

26

NOTE :- 01. ALL DIMENSION IN MM. 02. FURNACE NOMINAL CAPACITY 15-TPH FOR 100X100X3000mm BILLET RE HEATING FURNACE.

.1, AMK@SQRGML ?GP @JMUCP 5...Lkł-FP $ BGQAF?PEC NPCQQSPC /... UA, 04 ELECTRO MECHANICAL EJECTOR. 05. PUSHER - HYDRAULIC

LEGEND :-

REFERENCE DRAWING NO. :- 01. CHIMNEY - VBMC/UNDP/RHF/04/01.01 02. RECUPERATOR - VBMC/UNDP/RHF/05/01.01 03. ELECTRICAL - VBMC/UNDP/RHF/06/01.01

HZ 7599SZ 3200

450

3865 12

50

850

3600

750

500

Д/03.

4230

750

500

PHZ 6580

13

ELEVATION VIEW

INSPECTION DOOR

1. ALL DIMENSION ARE IN MM UNLESS OTHERWISE SPECIFIED.

NOTE:

2. IIP ENCON FILM BURNERS CAPACITIES:

SOAKING ZONE : 4A (NOMINAL FIRING RATE 45Lt/hr

HEATING & PREHEATING ZONES : 4A (NOMINAL FIRING RATE 40Lt/hr

800

800

TYP665 1200 60

0

INSPECTION DOORDISCHARGE DOOR

845

BURNER1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200


UNDP

15 TPH REHEATING FURNACE WITHFURNACE OIL FIRING

GENERAL ARRANGEMENT: STRUCTURAL

1600 1600 2000 16001735 3200

1735 4000 1600 1600 2000 1600

1200 17380

1291

4982

800

1291

3600

12503105

1083

772

600 1550 (TYP)

INSPECTION DOOR

8415

INSPECTION DOOR INSPECTION DOOR 725

1830

2830

3680

IIP ENCON FILM BURNER 4A

MAN HOLE

1735

6580

17380

20395

20395

200

PLAN VIEW

REFERENCE DRAWING NO. :- VBMC/UNDP/RHF/02/01.01

SKID

17380

SKID

SKID

VIEW -XY

800800800

4982

X

Y

1322

1000

14

800 1760

200 19

AIR PIPE 250 NB

AIR PIPE 300 NB

AIR

PIPE

600

NB

950

950

HYD. CYLINDER

Д/44

OIL NIPPLE

G.M. BUSH

1300

20

19

500

750

HYD. CYLINDER

1490

1000

300

2820

?GP NGNC Д4.7V2,3 KK RFI,

4577 2883

2049 1100

2334

170

5130

2146

57

800

AIR PIPE 350 NB

A

VIEW - A

B

VIEW - B

C D

VIEW - C VIEW - D

VIEW - E

E

800 800 8001600 1600 1600

1600 1600 1600

VIEW - A

1600 1600

VIEW - B

1600

VIEW - C

1600 1600

VIEW - D

1600

VIEW - E

800 800 800


UNDP15 TPH REHEATING FURNACEWITH FURNACE OIL FIRING

GENERAL ARRANGEMENT: PIPING

100 NB100 NB

100 NB 100 NB

100 NB 100 NB 100 NB100 NB15 NB15 NB15 NB

15 NB

15 NB

15 NB 15 NB 15 NB

25 NB

25 NB

25 NB

25 NB40 NB

15


SECTIONAL ELEVATION VIEW

695

1200

1250

1120

1735 4000 1600 1600 2000 1600 7700

1291

800

800

800

1291

4982

NOTE:-

3. ALL CUT TO BRICKS TO BE CUT WITH BRICKS CUTTING MACHINE

4. MORTAR USED FOR LINING THE BRICKS SHOULD NOT BE

THINK MORE THEN 1MM

1. ALL DIMENSIONS ARE IN MM UNLESS SPECIFIED OTHERWISE.

2. FIRE AND INSULATION BRICKS REQUIRED PER IS STANDARD

SPECIFICATION FOR FIRE BRICKS IS:1526,

INSULATION IS:2042-1972

5. SPECIFICATIONS OF BRICKS ARE GIVEN IN SEPERATE BOM (WORD DOCUMENT).

SECTIONAL PLAN VIEW

FIRE BRICK H/A 70%

CALCIUM SILICATE BLOCK

IS-6 FIRE BRICK

INSULATION BRICK

FIRE BRICK H/A 50%

HOT FACE INSULATION BRICK

MICA INSULATION BRICK

1

13

2

2

2

1550 1550 1550 1550 1550 1550 1550 1550

1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200

SZ 3200 HZ 7600 PHZ 6580


GENERAL ARRANGEMENT: REFRACTORY& INSULATION

3600

1735

20395

17380

3200 1600 1600 2000 1600 8500

3030

750

500

1330

3105

800 800 800

SIDE VIEW

12911291

4982

500

750

1083

772

3105

3600

600

850

1522

H100

H100

H100

H100

H100

H100

H100

H100

H100

H100

H100

332

1251

616 750 750 750 750 750

RED BRICKS

2030

1250

3880

1850

SKID

CERAMIC FIBER

CASTABLE

75115115

230

75115115

230

115

115

115

115

100

200

100

250

75 75

115 115

16

DP-1

BFV-1

BFV-1

BFV-1

BFV-1

BFV-1

BFV-1

BFV-1

BFV-1

BFV-1

BFV-1

BFV-1

BFV-1

BFV-1

PV-1

PV-1

PV-1

PV-1

PV-1

PV-1

PV-1

PV-1

CV-1

S

25 NB25 NB

150 NB150 NB

150 N

B

150 N

B

BF

V-1

BF

V-1

BFV-1

BFV-1

TT SZ

FM SZ

FM HZ

TC HZ TC SZ

TC PHZ

PT

PT

FUEL

: OIL

.

PID

RATIO

PID

TEMP.

PID

RATIO

PID

TEMP.

TT PHZ

PID

TEMP.



P&I DIAGRAM

17


UNDP

15 TPH REHEATING FURNACEWITH FURNACE OIL FIRING

SINGLE LINE POWER SUPPLY

18



GENERAL ARRANGEMENT: RECUPERATOR

19

EL. + 500

Д/6..

2000 PCDД00..

2800 SQ.

CJ, ç.,.

EL.-1500

3300

0

RECUPERATOR


UNDP

15 TPH REHEATING FURNACEWITH FURNACE OIL FIRING

GENERAL ARRANGEMENT: CHIMNEY

* THE DRAWINGS SHOWN ARE INDICATIVE HOWEVER ACTUAL WILL BE PROVIDED DURING MANUFACTURING

20

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