Copy of Protocol_TCH

SAIL , RSP BF#1 Rebuild.Protocol: CR-5 Tuyere cooler holder Installation and alignment ( Before welding)

Refrence docs. 1 Tuyere cooler Holder : P002623-350BG10-065-MG0002 Rev 0

2 Furnace shell erection tolerance specification : P002623-350BG10-010-MD0003 Rev 0

Refer Sketch

TCH Outer to Outer

Dimension 'A' "B1" "B2"

1 TCH 01- 02 584 1092 1092 1596 828

2 TCH 02-03 580 1090 1090 1596 828

3 TCH-03-04 586 1090 1090 1595 828

4 TCH 04-05 588 1091 1091 1600 828 415

5 TCH 05-06 580 1091 1090 1597 828 415

6 TCH 06-07 585 1092 1091 1600 828

7 TCH 07-08 580 1091 1092 1591 828 414

8 TCH 08-09 587 1093 1090 1597 828

9 TCH 09-10 588 1090 1090 1605 828 414

TCHSl No.

TCH to TCH No.

Daigonal from Center line toTCH cente

TCH center to center

Tcl to Tcl

tuyere convergent

face I.D.

radius measured with piano wire at

center refrence

10 TCH 10-11 582 1090 1090 1596 828 415

11 TCH 11-12 587 1094 1092 1595 828

12 TCH 12-13 586 1090 1092 1596 828

13 TCH 13-14 575 1093 1092 1586 828

14 TCH 14-15 588 1092 1099 1601 828 414

15 TCH 15-16 586 1099 1091 1599 828 414

16 TCH 16-17 579 1102 1092 1596 828

17 TCH 17-18 583 1094 1100 1597 828 414

18 TCH 18-19 579 1100 1100 1596 828

19 TCH 19-20 583 1100 1095 1596 828 415

20 TCH 20-01 579 1100 1101 1599 828 414

EPIL DCI/DCBV

Note :1.Welding Sequence to be decided by EPIL quality control team.2.Before welding proper locking of TCH's shall be done to prevent distortion and misalignment.3.Proper edge/surface preparation to be done before installation / welding.

4.Pre-heating of shell be done before welding.5.Continuous monitoring/observation should be done during welding to check for miss alignment due to shrinkage.6.After completion of all TCH welding , measurements shall be made again and recorded.

7.Weld test shall be done , if any defects found repair should be done and re tested.8.SR shall be done for all TCH either by segmentwise or all at a time.9. After SR is completed , measurement shall be taken again and checked with earlier reading for any deviations .

SAIL , RSP BF#1 Rebuild.Protocol: CR-5 Tuyere cooler holder Installation and alignment ( Before welding)

Refrence docs. Tuyere cooler Holder : P002623-350BG10-065-MG0002 Rev 0

Furnace shell erection tolerance specification : P002623-350BG10-010-MD0003 Rev 0

Refer Sketch

Remarks.

2280 1265 checking in progress



2290 1265 Yes Released for Welding






Radial axis alignment to be checked with piono

wire.

Horizontal axis "level" (water level.)

Locking of TCH before welding ( Yes/No)












RSP

5.Continuous monitoring/observation should be done during welding to check for miss alignment due to shrinkage.

9. After SR is completed , measurement shall be taken again and checked with earlier reading for any deviations .

Copy of Protocol_TCH

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