Annual Rate Contract for diff repairing and maint jobs of coal Mill,Coal burners , CCP,coal feeder,air pre-heater,ID/FD/PAFans etc of unit#5 and 6.

Amount

Air Seal Work:-Dismantling & Servicing of airseal.

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

RJA replacement with necessary work & roller setting(3nos) etc.

Mill schedule checking

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

Patch work of mill body liners

Replacement of scrapper plate & stopper

Replacement of scrapper block, scrapper bush, pin scrapper plates & stopper.

Patch work of Scrapper plate

Replacement of scrapper bush, pin bush, scrapper plate & 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 a 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 checking of knife gate and cold air test by running of mill/ Seal air fan suction strainer cleaning

Replacement of Classifier deflector blade/Replacement of lub oil pump

Link adjustment for 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 gearbox bolts & alingment with motor

Chockage cleaning of C.C.P by dismantling of Rockwell coupling, poking, 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 MDV/Orifice/MPO/Transition piece with complete fittings.

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

Servicing of RJA with new brg set, and fitting of grinding roll

Servicing of RJA without repl of brg, and fitting of grinding 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 centre pipe by 180 deg

Replacement of Feeder base frame.

Rotation of feeder to 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.

Replacement of motor side coupling with complete fittings & alignment.

Replacement of vertical shaft seal of mill gear box./ Replacement of complete oil of Mill Gbox

Replacement of G/B input shaft seal/Lub oil coupling greasing/Oil top up of APH/ID/FD/PA/Bowl Mill gearbox

Vertical shaft shim adjustment & allied works /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 from its position, alingment & necessary blue match checking is to be done.

Tightening of Mill gearbox bolts & alingment with motor/Opening of front access door and dismantling of worm shaft from its position.

Bowl Mill GearBox 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

Minimum Monthly Lumpsum’

TECHNO ENGINEERING

BROTHERS ENGINEERING AND ERECTORS LIMITED