ENMAS INDIA PRIVATE LIMITED

(SMC POWER GENERATION LTD UNIT 2)

DEPARTMENT: CPP OPERATION
WORK INSTRUCTION TITLE: STANDARD OPERATING PROCEDURE OF WHR BOILER
VER.NO: 00 REV.NO : 00 CPP_OPE/BTG/06 DATE: 27:06:2021 PAGES 1 of 3

1. PURPOSE :Safe operation of WHR Boiler

2. SCOPE :This Procedure is applicable for 8x10 TPH WHRB & 2X38 TPH WHRB

3. REFERENCE : O & M Manual

4. ANNEXURE : NIL

5. DISTRIBUTION : Operator, DCS Engineer, Shift in charge, HOD Operation

6. RESPONSIBILITY : Operator,DCS Engineer, Shift In charge, HOD.

7. DEFINITION : Safe operation of waste heat recovery boiler

8. SAFETY TABLE :
Safety Safety
Job description/ Respirator/ Safety Safety
Helmet Ear muff PVC gloves uniform/ Safety Belt
PPE -> Dust Mask Goggle Shoes
jacket

Waste Heat
Recovery Boiler
Y X Y Y Y N/A N/A Y

9. SOP Index :

No. Index Page

1 Equipment description 2
2 Technical data 2
3 Tripping condition 2
4 Boiler light up Procedure 2,3

1. Equipment Description: Boiler

PREPARED BY REVIEWED BY APPROVED BY

SIGNATURE
NAME
 ENMAS INDIA PRIVATE LIMITED
(SMC POWER GENERATION LTD UNIT 2)
DEPARTMENT: CPP OPERATION
WORK INSTRUCTION TITLE: STANDARD OPERATING PROCEDURE OF WHR BOILER
VER.NO: 00 REV.NO : 00 CPP_OPE/BTG/06 DATE: 27:06:2021 PAGES 2 of 3

No Description
1 Type: Waste Heat Recovery Boiler
2 Manufacture :ThyssenKrupp Industries India Pvt Ltd
3 Design Fuel: Flue gas from DRI Kiln
7 Boiler is a subcritical,single drum, natural circulation, balance draft,waste heat recovery boiler which uses DRI Kiln to
produce super heatedstaem

2.Technical Data of Boiler:

Sl NAME UNIT MCR

1 Superheated steam flow t/h 10
2 Superheated steam outlet pressure Kg/cm2 110
0
3 Superheated steam outlet temperature C 540±5
0
11 Feed water temperature C 150
0
15 Flue gas temp at ESP inlet C 160
3

4.Tripping Condition of BOILER

No. Description
1 Boiler Drum Level HI (> 65%)
2 Boiler Drum Level low(<30%)
3 Furnace Pressure Hi (>50 mmwc)
4 Furnace pressure low(- 50 mmwc)

5. BOILER LIGHT UP

No. Description Responsibility

START UP PRCEDURE
Local Operator/
1 Work permit on various boiler areas such as furnace, ID,ESP should be cancelled.
Desk Engineer
2 Ensure that all the interlocks and protections are checked and are in service. Desk Engineer
Before ensuring all man holes and peep holes are closed, look inside if there is anything and put sound to Local Operator/
3
check any person is inside. Desk Engineer
Desk Engineer/
4 Power available to start boiler auxiliary
Electrical Engineer
5 Ensure drum level is normal(40%) , all drum vents are in open condition, all super heater vents Local Operator/

PREPARED BY REVIEWED BY APPROVED BY

SIGNATURE
NAME
 ENMAS INDIA PRIVATE LIMITED
(SMC POWER GENERATION LTD UNIT 2)
DEPARTMENT: CPP OPERATION
WORK INSTRUCTION TITLE: STANDARD OPERATING PROCEDURE OF WHR BOILER
VER.NO: 00 REV.NO : 00 CPP_OPE/BTG/06 DATE: 27:06:2021 PAGES 3 of 3

are in open condition, super heater drain are in open condition, HP dosing Valve is in open
Desk Engineer
condition.
Shift In charge / Desk
6 Give clearance to DRI control room to start ID fan .
Engineer
Local Operator/
7 Close all drum vents when drum pressure reached 2 kg/cm2.
Desk Engineer
Local Operator/
8 Close all super heater vent when super heater pressure reached 5 kg/cm2.
Desk Engineer
Local Operator/
9 Close all super heater drain when super heater pressure reached 8 kg/cm2.
Desk Engineer
Moniter pressure rising rate and communicate to DRO control room to control the ID fan RPM
10 Desk Engineer
for the same.
Charge MSSV bypass and MSSV when main steam pressure & temp achieved 110 kg/cm2 and Local Operator/
11
545 deg cen. Desk Engineer

PREPARED BY REVIEWED BY APPROVED BY

SIGNATURE
NAME