Supply of Annual contract for Plant Maintenance Jobs Pre clinkerisation works

Apron feeder/ALIND conveyor/Spillage conveyor/Besta feeder of coal mill

Chain/Scrapper bar with chain link replacement/ bucket (Includes counter release and adjustment, Dismantling /assembly of old and new chain, insertion of pins to lock chain. Complete set -18mtrs, patch work of partion plate side wall if required)

Shortening of chain / Return / Top supporting rollers replacement (Including allied work)

Replacement of Head drum sprocket & bearing with coupling (includes dismantling and assembly of coupling and bearing )

Replacement of Tail drum sprocket/ bearing (includes releasing/adjustment of counter weight arrangement, De linking of chains)

LS Crusher & stacker

Revival and Commissioning of Bag Filter - Type III

Hammers replacement

grate bars/Segment (2 1/4') replacement

Stacker wheels replacement ( NDE & DE/ bogie guide roller/ bogie alignemnt )

Raw mill main gear box

Raw mill main gear box input coupling torsion shaft/ input coupling flexible element (Rubber) replacement (motor side)/ input coupling bolts decoupling and re coupling replacement

Input coupling spring plate replacement ( gear box side & motor side)

Rawmill main gear box complete oil replacement (including cleaning of tank, etc)

Raw mill, Hydraullic cylinder & rocker arm

Mill body liners replacement

Hydraulic cylinder /Seal cylinder/ cylinder bottom/ yoke bearing/yoke/yoke half nut replacement

Nitrogen cylinder/ spare cylinder bladder replacement

Rocker arm thrust plate replacement of thrust plate/ bolts.

Rocker arm axle bearing replacement

Dam ring

Dam Ring Replacement

Dam Ring removal and fitment of Segment

Dam ring broken bolt removal and new bolt fixing/vertical plate replacement / Scattering ring replacement

Tripple gate feeder

Triple gate cylinder replacement

Tripple gate feeder bearings replacement

Tripple gate feeder flap replacement

Tripple gate feeder body liner replacement

Classifier

Classifier shaft/bearing replacement

Classifier vanes replacement

Classifier cardan shaft /diaphragm coupling replacement

Mill fixed dampers repair/replacement

Expansion Joints of various sections like: rawmill, coal mill & preheater fan outlet

Expansion Joints fabric replacement

Replacement of Silo extraction gate, kiln feed bin gate & SFF dosing valve

S.S/Alloy steel Anchor

Fabrication of anchor

Fixing of anchor (SS304)

Air blaster maintenance work

Replacement of air blaster (include cutting, welding, dismantling, erection works, levelling & finishing works to start the plant smoothly & etc.,)

Replacement of air blaster internals spares

Preheater all Cyclone flaps Maintenance work

Cyclone stage 1 (twin), 2-1, 2-2, 3-1 & 3-2 flaps replacement (including cutting of SS plate, dismantling /assembly of plate, fixing/tightening of SS bolt)

4-1 & 4-2 cyclone flap replacement (including cutting of SS plate, dismantling /assembly of plate, fixing/tightening of SS bolt)

Preheater all Cyclone feed pipe & cyclone Maintenance work

Redspot patch box work (includes Anchor welding, castable & welding etc.,) / Feed pipe Patch replacement (includes Anchor welding, castable, welding & finishing works etc.,)

Feed pipe replacement work 600 -800mm (approx) with castable up to 25Mtr (include cutting, welding, dismantling, erection works & finishing works to start the plant & etc.,)

All Feed pipe expansion joint replacement Dia:600

Cyclone 2-1, 2-2, 3-1, 3-2, 4-1 & 4-2 expansion joint replacement

Fabrication of 2-1, 2-2, 3-1, 3-2, 4-1 & 4-2 cyclone expansion joint with supports, flanges and matching flanges.

Fabrication/ Fixing of inspection door box type as per site condition size: range 400mm to 800mm square with SS anchor welding

Replacement of immersion tube in all cyclones (2-1, 2-2, 3-1, 3-2 & 4-1 & 4-2) during shutdown/ Throttle damper at inlet Approx -3MT

Dismantling & shifting works (includes Cutting of SS plate 8 -25mm thk, welding, setting & finishing work, Dismantling of distance piece, expansion joint, cutting, grinding, welding supports, jigs, finishing works to start the plant, etc.,) / Dismantling & shifting works of throttle damper (includes Cutting of SS plate 8 -25mm thk welding, setting, sealing ring & finishing works to start the plant, etc.

Erection, Fitment works (includes Cutting of SS plate 8 -25mm thk, welding, setting & finishing work, Dismantling of distance piece, expansion joint, grinding, welding supports, jigs, finishing works to start the plant, etc.,) /Erection, alignment, Fitment works of throttle damper (includes Cutting of SS plate 8 -25mm thk welding, setting & finishing works to start the plant, etc.)

Fabrication and finishing works (includes Cutting of SS plate 8 -25mm thk, welding, setting & finishing work cutting, grinding, welding supports, jigs, finishing works, etc) / Fabrication and finishing work of throttle damper (includes Cutting of SS plate 8 -25mm thk, welding, setting & finishing work)

Fixing and removal of dummy plate at all cyclone and feed pipes (Includes dismantling of distance piece, cutting, welding and grinding works)/

Kiln maintenance work during shutdown works

Kiln shell crack welding work (shell thk 28-63mm) (deploy special welders)/ Tyre Chair pad welding work (deploy special welders)

Replacement of damaged spring plates and tightenng of ropes at kiln inlet & outlet.

Removal & fixing of doors for TA duct, Preduster & secondary air duct & cooler section

Kiln outlet shell maintenance work

Replacement of segment retianer (damaged ring) includes cutting, shifting, grinding, approachable reach, fixing anchoring works.

Fabrication of retainer ring (with 16mm/ 20mm/25mm/upto 50mm M.S. Plate of 100-150mm width )

Kiln outlet tip casting replacement work

Replacement of inner / Outer tip casting segment (includes cutting, shifting, grinding, approachable reach, anchoring works)

Multi channel burner pipe Maintenance work during shutdown

Replacement of SS nozzle tips (includes removal of channel pipe i.e., inner axial, stabilsation pipe)

Hardfacing welding in the channel pipes size: Ø200xL500MM (Includes patch work and finishing work to start the plant smoothly, etc.,) special wedler is required

Replacement of Castable SS Pipe with anchors (Outer pipe) /inner axial pipe with nozzle tip (inner pipe)

kiln and MFC firing Coal pipe

Replacement of coal pipe size range 150mm to 250mm

Replacement of cast basalt bend 45⁰, 90⁰, 110⁰ & Y -Bend

a. kiln Hood replacement work during shutdown b. Cooler inlet bull nose sector with anchors /castable arrangement during shutdown and finishing. c. TA duct, Cooler & preduster side walls and top roof with brick holding frame/castable arrangment during shutdown and finishing works to start the plant smoothy, etc., d. Kiln arch plate replacement work Including welding, cutting welding anchors, retainer plate, lifting the material with castable & strengthening plate by angle

Dismantling & shifting works includes welding, cutting, fixing of angle frame or beam frame, strengthening plate by angle )

Erection, Fitment, welding and finishing works (including welding, cutting, fixing of angle frame or beam frame, strengthening plate by angle )

Fabrication and finishing work includes including welding, cutting, fixing of angle frame or beam frame, strengthening plate by angle)

Cooler Grate 1, 2 & 3 maintenance works during shutdown

Replacement /Repair of Dead grate plate, top dead grate plate, 25mm grate plate, 25mm half grate plate 13mm grate plate 13mm half grate plate & side casting (Includes removal/fixing of grate plate, cutting, welding, tightening of bolts, & finishing works to start the plant smoothly, etc.,)

Replacement of carrying wheel & drive crosshead wheel with bearing & assembly and rail replacement work

Replacement of cooler fans 1 to 10 with impeller assembly

Replacement of driven sproceket assembly with torque shaft (includes dismantling/assembly of bush bearing/ housing, sealing plate of DE side and NDE side, shaft guards, alignment works, levelling, and finishing works

Cooler carrying wheel sealing plate replacement during shutdown dia Ø127mm (includes complete dismantling /fixing of new plate, welding, cutting & any small modification works if required)

Cooler drive shaft sealing plate replacement during shutdown dia Ø200mm (includes complete dismantling /fixing of new plate, welding, cutting & any small modification works if required)

Replacement of clinker breaker hammer (includes dismantling of hood, cutting, wedling & tightening of bolts, etc., and finishing works to start the plant smoothly)

Repair of grate beams (includes adjstment of finger, plate, cutting, welding and grinding)

Replacement of grizzly bars ( includes dismantling of bars, cutting, wedling etc., and finishing works to start the plant smoothly)

Spare parts Repair/assly work for cooler section

Fabrication of cooler shaft seals fixed and movable including drilling, cutting & grinding.

Repair of cooler carrying wheel bearing assembly/ crankspool shaft assembly/ cross head /crank head assembly/ cooler fan impeller assmebly /actuator for all cooler fans / cooler grate bars by cutting

Repair of cooler drag chain idlers includes (replacement of bearing/ housing assembly)

DPC Maintenance works

Replacement of DPC partition plates and fixing.

Replacement / Repair of DPC buckets and alignment/ rollers / partition plate /DPC chains each 1 mtr.

Replacement of rollers and finishing work.

Repair of partition web plate strengthening

Replacement of DPC chains (each 1mtr)

Replacement of curtain chains (complete set : 25 nos i.e each nos is 1mtr length chain) / Dismantling and shifting work

Replacement of balls & rings of coal mill

Dismantling & shifting works (Dismantling includes dismantling of Y duct, spider, top ring & bottom ring, balls, throttle ring & fill in balls) crane will be provided by CCI

Erection, Fitment, welding and finishing works (includes erection spider, top ring & bottom ring, balls & fill in balls) crane will be provided by CCI

Coal mill Internal

Replacement of U bolt

Replacement/ Fabrication of Feed pipe dia range 600mm to 800mm

Replacement of Y duct Dia 700mm

Fabrication of Y duct

FK pump screw

Replacement of DE bearing, oil seal(dismantling/fixing of connecting components like shifting of motor, coupling, alignment, fitment, welding, cutting, finishing works to start the plant smoothly , Etc,)

Replacement of mixing chamber

Replacement of FK pump screw (dismantling/fixing of connecting components like shifting of motor, coupling, alignment, fitment, welding, cutting, finishing works to start the plant smoothly , Etc,)

Replacement of diverter valve (dismantling/fixing of connecting components like shifting works,alignment, fitment, welding, cutting, finishing works to start the plant smoothly , Etc,)

Kiln feed/Rawmill air slide cloth replacement W-400 - 700mm

Air slide fabric replacement

Air slide blower impeller /blower assembly with motor replacement

Replacement of Top/bottom box with fabric

Kiln feed Chain Bucket Elevator works

U Link replacement

Chain link sets replacement

Buckets Dismantling & Erection

Head replacement including gearbox, bearing, channels, side supports idlers etc.

Replacement of head drum rim (includes dismantling/ assembly of hood, chain & buckets)

Tail drum replacement includes bearing and housing

Kiln feed/Rawmill weighfeeder Maintenance

Belt replacement (Range W 800 to 2200mm) Ply4 includes dismantling and assemly of side supports, idlers, skirts, hood etc.,

Belt idlers replacement

Head replacement including gearbox, bearing, channels, side supports idlers etc.

Tail drum replacement includes bearing and housing

Belt bucket elevators maintenance Rawmill/Kiln

Replacement of belt for belt bucket elevator Kiln: L180mtr/ Rawmill: L125Mtr)

Replacement of buckets / Tightening of bucket bolts in buckets

Kiln feed/Coal ESP/Rawmill multi cylone/ Rawmill PJBF/ Cooler ESP rotary air lock maintenance

Repairing of RAL vanes

Leakages arresting work at cyclones, Downcomer duct, Feed pipe, Riser duct, tagential portion, cylindrical joint, bends, smoke chamber, V-duct area,MFC & areas of preheater section etc., Welding and patch repair at various elevations coal mill, rawmill/ , kiln, preheater, cooler, packing plant and LS crusher

Patch plate replacement at all sections / Classifiier body liner replacement

Fabrication of angle frame or beam frame (piece of about 1.5mtr)

fixing & removal of fabricated Angle frame or Fabricated Beam frame for holding the bricks in Preheater section

Brick retainer plate (includes 6- 10mm thk plate fabrication and bottom ribs to be provided for support)

Preheater Fan/Rawmill fan/Cooler ESP vent fan/PJBF fan/Coal mill fan maintenance work

Replacement of DE bearing, housing & lybrinth seal (includes shifting of motor, alignment works, dismantling/ assembly of coupling, housing, shifting of motor shed & finishing works to start the plant, etc.,)

Chain conveyor of Cooler ESP/Rawmill/LS crusher moving breaker chain links

Replacement of chain links and pins

Chain conveyor link replacement

Rails Replacement at drag chain conveyor & DPC

Replacement of Pulley, idler & belts for various size from 650mm to 1200mm of belt conveyor at coal mill/rawmill

Conveyor Belt replacement length W650mm to 800mm

Conveyor Belt replacement length W1000mm to 1200mm

Dismantling and erection of carrying/troughing/ impact idlers/ return idlers

Shifting/lifting/lowering of materials (i.e cylinders. Plates, equipment spares, lubricants, Gearbox,motors,screw flight,airslide boxes,airslide blowers, (Below 5MT)in all sections.

Stores to workplace ( Ground floor) includes to and fro by trolley, etc.,

Shifting of material from Ground floor to 30 Mtrs includes to & fro

Shifting of material from ground floor to above30 Mtrs includes to & fro

Replacement of various sizes of Gearboxes/Motors/any machinery/equipment items etc. (above 0.5MT) with alignment at any elevation in all sections.

Dismantling and Shifting including welding, cutting (if required)

Erection, Alignment and finishing work. including welding, cutting,(if required)

Structural & Plate work like ducts, hoppers, chutes, Hood, Hood liners, hopper liners, bends, base frames,platforms,walkways,Safety guards,Shed, Roofing etc, in all sections.

Material Shifting and dismantling

Fabrication and finishing work includes including welding, cutting

Erection, Alignment and finishing work. including welding, cutting

Roofing/side cladding

Coal mill Reversible screw conveyor, Coal ESP Screw conveyor, Prefeeder screw conveyor for kiln & MFC, GCT screw conveyor,

Replacement of screw dia range 300mm to 400mm (Includes shifting, lowering and lifting of screw, dismantling and assembly of gearbox, bearing , bearing housing (DE & NDE side), motor and coupling, finishing works to start the plant smoothly.

Coal/Rawmill Reclaimer

Replacement of Gear box input or output oil seal includes motor alignment and bed leveling work shifting of motor shed & finishing works to start the plant,etc.,

Replacement of reclaimer showel buckets

Replacement of chains (each 1mtr) Pitch 315mm

Spare parts Repair/assly work in all sections

Fabrication of reclaimer showel buckets

Welding build up and grinding of guide rollers, wheels, shafts, reclaimer wheels, shafts, Guide rollers & return rollers, Stacker wheels, Stacker wheels repair, build up grinding, assembly work, worn out pulleys, shaft of pulleys, fans or any other rotary equipment, Stacker/Reclaimer Bogie guide rollers, shafts repair build up, ( machining will be done at CCI work shop)etc

Repair of reclaimer brackets, assembly of brackets with rollers, repair of Apron feeder/ Alind conveyor/ spillage conveyors return rollers assembly work machining will be done at CCI work shop)

Fabrication of SS flaps, Dispersion /tongue plate (3-1, 3-2, 2-1 & 2-2) (includes Cutting of SS plate 8 -25mm thk, welding, setting & finishing work, Dismantling of distance piece, expansion joint, cutting, grinding, welding supports, jigs, finishing works to start the plant, etc.,)

Replacement of various sizes of Gearboxes/Motors/any machinery/equipment items etc. (below 0.5MT) with alignment in all sections.

Dismantling and erection including Alignment and finishing work. including welding, cutting,(if required), welding, cutting, lifting and lowering at elevation up to 30mtr

Dismantling and erection including Alignment and finishing work. including welding, cutting,(if required), welding, cutting, lifting and lowering at elevation from 31mtr and above.

Overhauling/repair of gear boxes below 200 HP

Dismantling, repair of internals, Assembly including bearings, gears, seals, coupling, sprocket etc.,(Machining will be done CCI W/shop)