Repairing of Boiler No. WBL-3751 at No. 6 Pit as per boiler Inspector report no. WB/R/2022/1026

Amount

Removing of damage/buiged furnace plate bottom area of the furnace

Providing and fixing of new fusible plug with IBR TC

Removing old/damaged front bottom end plate (as marked out by Boiler 3 Inspector) by gas cutting and removing complete.

Repairing & rebuilding of damaged/pitted area of front bottom plate(as (marked by boiler imspector)by welding and grinding properly to make 4 proper shape of front plate bottom area.

Cutting out the defective rivets as marked by compitent authority on of rivets 109 nos.

Build up defective rivet holes as per BR specification 109 nos

Reaming the rivet holes after cutting out as per IBR specification 109

Reaming the rivet holes after cutting out as per IBR specification 109

Caulking the rivet head after riveting -109nos

Making "V" shape the gas cut area by grinding for fixing the new BQ plate

New BQ plate size 700mm x 2250mm x16mm=198.07kg +10% cutting allowance

Cutting the above plate to proper shape and size grinding the new BQ plate

Rolling the plate to proper shape

Manual bending of the rolled sheet as per size of the bottom area by half angle including cost of industrial gas

Fitting of the fabricated plate in tag position for stage inspection by the boiler inspector and get it approved

After approval root argon welding in presence of the boiler inspector

After complete root argon welding ,complete welding of the plate by IBR welder and necessary finishing by grinding

Radiography test after complete welding in presence of the boiler inspector including all expenses

Obtaining test report from testing lab and sending that same to boiler Linspector for perusal

After getting it approval full welding by BR welder with suitable electrodes

Making of D.P. test of full welding area and other size in presence of the boiler inspector

Boiler foundation making wall are damaged long area LHS & RHS side and back area remove damaged bricks and cleaning properly

Blow down valve 2" repairing

Repairing gauge column cock and fitting properly 4 set

Feed check valve repairing and fitting

Safety valve repairing & fitting

Providing of feed pump

Providing of hydraulic pump

Blanking of the boiler points, pushing water and arrange hydraulic test inspection by boiler inspector approved

After hydraulic test fitting all boiler mountings, fire bar etc. and making ready the boiler for steaming purpose

Removing all bricks from boiler top and all sides and all arching blocks and making free of boiler cleaning and stack near boiler area

Lifting the boiler by 30 Ton capacity jacks rental basis for month

Lifting of the boiler at certain hight and reseting MS beam with supporting jacks

Rewmoving all seatting blocks and 1st stage inspection in raised position as per instruction of boiler inspector(112 NOS)

Removing all sides scale of out side the boiler for necessary cleaning, descaling of the boiler

Boiler foundation making wall are damaged long area LHS & RHS side and back area remove damaged bricks and cleaning properly

Providing & fixing of new brick in place of damage/reject brick with supply of cement, sand for boiler foundation wall making properly (left side wall- 9.230mtr. & walls hight 01mtr. Wall thick 0.5 mtr. Instruct by boiler inspector

Providing & fixing of new brick in place of damage/reject brick with supply of cement, sand for boiler foundation wall making properly (Right side wall- 7.769mtr. & walls hight 01mtr. Wall thick 0.5 mtr. Instruct by boiler inspector

Providing & fixing of new brick in place of damage/reject brick with supply of cement, sand for boiler foundation wall making properly (Back side wall- 1.5mtr. & walls hight 01mtr. Wall thick 0.5 mtr. Instruct by boiler inspector

Providing fixing new seatting blocks in place of damaged/reject blocks

Refixing/resetting of boiler after laying seatting blocks and resetting boiler properly after removing bottom MS beam

Resetting of boiler and maintaining proper alignment as per instruction of boiler inspector

Providing & fixing of new arching block all three sides (right,left&back side) in place of damage/reject block with supply of fireclay, cement, sand etc.

Providing of new seating block both sides (right&left) in place of damage/reject block with supply of fire clay, cement, sand etc

Providing of new arching block all three sides (right,left&back side) in place of damage/reject block with supply of fire clay,cement,sand etc.

Covering brick work of boiler top and all side with supply of sand, fire clay and cement, bricks in place of damaged bricks

Carring boiler inspector, operator, ultrasonic machine rent, cleaning full boiler all position (as marked by boilere inspctor) then grainding, greasing all position for ultrasonic testing with providing grease and grinding stone

Overhead cost @ 10%

Total impact of GST for the purpose of CTC

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