Annual repairing of Lancashire boiler WBL-6278 at 5 Pit of Khas Kajora Colliery

Amount

Item Description/ Heading

Removing old damaged fusible plug with socket by gas cutting and ready to making for fixing of new IBR socket

Making New IBR socket from IBR 75mm frozen bar. Complete machining and thread building

Fitting of New socket in tag position for inspection of Boiler Inspector and approval

After approval from Boler Inspector, fixing and welding by IBR with IBR approved electrodes

Providing and fixing of new fusible plug with IBR test report

Removing of damaged/ bulge furnace plate with flue area of the furnace portion ( as mark out by boiler inspector) by gas cutting, removing complete (vide report no: WB/R/2021/0907 date 13.08.2021)

Old damage bulging flue plate (980mm dia and size 1482mm x 1217mm x 16mm)

Providing new BQ plate (size 1482mm x 1217mm x 16mm + cutting allowance 10%) Rs. 349.00 /Kg

New BQ Plate rolling as proper and fabrication (Size 1482mm x 1217mm x 16mm +cutting allowance 10%) @6.50/25 Sqm

Manual bending of the rolled plate as per size and proper shape of existing cutting area half circle of furnace flue including cost of industrial gas

Fitting o f the fabricated plate in tag position for stage inspection by the boiler inspector

After approval root argon welding by IBR approved welder in presence of boiler inspector

After getting it approved full welding by IBR welder with IBR approved electrodes

After complete root argon welding, complete welding of the plate by IBR approved welder and necessary finishing by grinding (Total welding root is 5.40mtr x 4 lap)

Radiography test after complete welding in presence of Bolier inspector including all expences

Making DP test full welding area other side in presence of boiler inspector

Obtaining test report from (Kolkata) testing lab and sending that same to boiler inspector for perusal

Obtaining permission from director of boiler (kolkata) for repairing as per regulation 392 of IBR 1950

Isolated and located printing were observed on steam side surface of the RHS flue around 12'o clock position to 9'o clock position at the 1st and 2nd streak build properly

Blowdown valve repairing 2" (flange type)

Repairing of gauge column cock valve and fitting 4 nsos

Feed check valve 2" repairing and fitting

After Hydraulic test fitting all boiler mounting as fire bar, front cover plate with firing window and making ready the boiler for steaming purpose

Complete all refractory job and sealing properly for the boiler inside air circulation

Labour Cost

Removing of damaged fusible plug with socket by gas cutting and ready to making for fixing of new IBR Socket

Making New IBR socket from IBR 75mm frozen bar. Complete machining and thread building

Fitting of New socket in tag position for inspection of Boiler Inspector and approval

Removing old damaged fusible plug with socket by gas cutting and ready to making for fixing of new IBR socket

Removing hard scale inside of the bulging surface both side of furnace flue area by manually for proper cutting

Old damage bulging flue plate (980mm dia and size 1482mm x 1217mm x 16mm)

Providing new BQ plate (size 1482mm x 1217mm x 16mm + cutting allowance 10%) Rs. 349.00 /Kg

New BQ Plate rolling as proper and fabrication (Size 1482mm x 1217mm x 16mm +cutting allowance 10%) @6.50/25 Sqm

Manual bending of the rolled plate as per size and proper shape of existing cutting area half circle of furnace flue including cost of industrial gas

Fitting o f the fabricated plate in tag position for stage inspection by the boiler inspector

After approval root argon welding by IBR approved welder in presence of boiler inspector

After complete root argon welding, complete welding of the plate by IBR approved welder and necessary finishing by grinding (Total welding root is 5.40mtr x 4 lap) (Semi Skilled)

After complete root argon welding, complete welding of the plate by IBR approved welder and necessary finishing by grinding (Total welding root is 5.40mtr x 4 lap) (Un Skilled)

Isolated and located printing were observed on steam side surface of the RHS flue around 12'o clock position to 9'o clock position at the 1st and 2nd streak build properly (Un Skilled)

Isolated and located printing were observed on steam side surface of the RHS flue around 12'o clock position to 9'o clock position at the 1st and 2nd streak build properly (Semi Skilled)

After Hydraulic test fitting all boiler mounting as fire bar, front cover plate with firing window and making ready the boiler for steaming purpose

Total impact of GST for the purpose of CTC

GT ENTERPRISE