RC for Different Maintenance Activities under BM Unit 5 and 6

Amount

Air seal Work:-Dismantling & Servicing of airseal

Truion Rotation with necessary work / Airport assembly part repairing by buildup & H/F.

RJA Replacement with necessary work & roller setting (3 Nos) etc.

Mill Schedule Checking

Checking, dismantling &replacement of complete Spring or Spring adjusting stud.

Patch work of Mill bottom side liners.

Replacement of Scrapper plate & stopper (2 Nos.)

Replacement of Scrapper block, Scrapper bush Pin, Scrapper plates & Stopper

Patch work of Scrapper plate

Replacement of Scrapper bush, pin bush, Scrapper plates & Stopper

Scrapper door assembly / RJA Support plate with liner replacement

Scrapper door box replacement

Replacement of a knife gate with complete fittings.

Replacement of complete tramp iron spout with required welding

Replacement of Top / Bottom part of tramp iron spout with required welding

Replacement of tramp iron gate with required welding and necessary work

Rejection passage foreign material removal / Scannar air filter cleaning.

Rejection passage chockage cleaning by poking & hammering, freeness cheacking of knife gate and cold air test by running of Mill / Seal air fan suction strainer cleaning.

Replacement of classifier deflector blade.

Link adjustment of classifier blade opening

Removal of foreign material from mill inside & box-up

Bowl mill OH

Replacement of insulation cover plate

Classifier cone rpl with allied works

Tightening of Mill gear box bolts & alignment with motor

Chockage cleaning of a C.C.P by dismantling of Rockwell Coupling, Pocking, Air blowing and box-up with gasket

Patch work in a CCP/MDV body./MPO classifier cone/ windbox etc

Part repairing job of straight C.C.P by cutting out of the eroded parts and fitting of new part with required welding

Replacement of Gasket of Victualic coupling /MDV/Rockwell coupling/ Dresser coupling with complete fittings.

Scaffolding of Coal Pipe Work.

Replacement/Servicing of MDV internal flapper gate.

Replacement of one no. MDV/Orifice/MPO/ Transition piece with complete fittings.

Application of Belzona or other equivalent product on MPO/MDV/Coal pipe/ classifier cone tec

Servicing of RJA with new Brg. set and fitting of griding roll .

Servicing of RJA without repl of Brg. set and fitting of griding roll .

Replacement of journal stop bolt

Replacement of seal air supply flexible hose / RJA truniun Cap.

Schedule Feeder checking .

Shear pin replacement with removal of foreign materials from inside the Feeder.

Feeder drop pipe chockage cleaning by poking and subsequent mill internal checking with removal of coal clinker and foreign materials from grinding zone.

Feeder chute replacement.

Coal bunker outlet gate servicing / feeder inlet gate servicing / feeder spider rpl / hot end drum rpl / drive side drum rpl including dismantling and box-up.

Coal feeder OH work

Rotation of coal feeder to mill chute center pipe by 180 deg

Replacement of Feeder base frame.

Rotation of mill chute by 180 deg with necessary repairing and metal build-up of chute hopper

Patch work on PA duct / PA duct divider plate replacement / venturi liner replacement.

Alignment of a mill gear box with mill motor including Checking of Spring and Coupling with complete fitting.

Replacement of gear box side coupling with complete fittings &alignment

Replacement of motor side coupling with complete fitting & alignment.

Replacement of vertical shaft seal of mill gear box

Replacement of G/B input shaft seal / lub oil coupling greagsing / oil top up of APH/ID/FD/PA/Bowl Mill gear box.

Vertical Shaft Shim adjustment and blue matching of worm shaft and gear and complete box-up.

Mill Gearbox side (gear coupling)& motor side (bibby coupling) greasing

Opening of front access door, dismantling of worm shaft rom it position, worm shaft, it's brg. Checking & necessary blue match checking to be done

Tightening of Mill gearbox bolts & alingment with motor.

Bowl Mill Gear Box replacement

Tension checking & tension adjustment of all foundation bolts & accessory work

Manual opening and closing operation of guillotine gate /louver damper/cold air gate.

Repairing /replacement of reach rod of oil /coal nozzle with required adjustment

Replacement of one no. Burner titling shear pin

Replacement / repairing of scanner guide pipe/ HEA igniter guide pipe/Fabrication & replacement of RJA upper housing liner.

Oil Burner/ID/FD/PA/Voith coupling/Bowl Mill Strainer cleaning

S D CONSTRUCTION (BID ID -5504032)

BROTHERS ENGINEERING AND ERECTORS LIMITED (BID ID -5520894)