MTPS I Mill Plant Unit I Complete dismantling of Mill internals reconditioning renewal of worn out parts and bearings replacement of worn out worm wheel with worm shaft and renewal of worm gear hub etc in any one Mill 1B to 1E

Amount

Charges for arresting the coal pipe firmly, dismantling of Victaulic coupling and lowering down the mill outlet elbows to 4.5 m. floor including charges for scaffolding.

Charges for dismantling of mill outlet elbows and changing the deflector block if any lifting the elbows and assembling with proper alignment with the existing pipe line and removing coal pipe supports and devolution of scraps to stores.

Charges for dismantling the Spool pieces, multiple port outlet bodies and transition pipes 4 Nos. each after assembling the coal pipe inspection with center feed pipe structures including transportation of supporting material from stores to site and re-fixing the Spool piece, MPO bodies and transition pieces and assembling to its original position and carrying out necessary related works and devolution of scraps to stores et., for a mill.

Charges for Dismantling of separator body top along with classifier assembly and reassembling the separator body top as per direction of engineer in charge. This includes making the fixture for lifting arrangements, lead, lift retaping and cleaning the threaded holes in the flange etc.

Charges for Dismantling of bowl hub with bowl from the vertical shaft and assembling new bowl and bowl hub as per the direction of engineer in charge. This includes making necessary fixture and supporting for lifting arrangements and lead, lift and transporting of materials from stores, reaming of holes in the bowl and bowl hub etc.

Charges for gas heating the bowl and bowl hub assembly using cutting set in order to expand the bowl hub for releasing it from the vertical shaft and also providing ice bag in the vertical shaft above the upper radial bearing to cool the shaft portion.

Charges for dismantling the triangular liners, cutting the bulged Mill bottom plate, applying refractory cement at the Mill bottom plate 1 set by providing bolts and welding.

Charges for cleaning the gearbox internals like worm shaft and worm wheel. Draining the cooling water from cooling coil, cleaning and inspection of worm wheel teeth, cleaning the cooling coil and reconditioning the coil. Arresting the leakages in the water line, assembling back the cooling coil covers, filling the gearbox oil up to normal level.

Charges for removing the old coupling halves from the motor and worm shaft ends. The charges includes gas heating the new/old coupling halves in the motor shaft and worm shaft and assembling the new/ old coupling in motor shaft and worm shaft.

Charges for dismantling the radial bearing after removing the oil pump hub and oil pump bushing and reassembling the new / old radial bearing in the new/old radial bearing housing and assembling the new/old pump hub and bushing.

Charges for dismantling of upper bearing housing cover with bearing housing, removing the vertical shaft along with upper radial bearings, lower bearings, worm wheel, dismantling of worn out worm wheel and changing new worm wheel and inserting the vertical shaft after inspecting the bearings, providing wedges for the vertical shaft lock nut and fitting as per direction of engineer in charge. This includes making suitable fixture for lifting arrangements.

Charges for Dismantling of mill bottom after removing broken M 24 size –16 Nos. bolts by drilling / gouging, tapping all the holes and assembling as per the direction of Engineer in charge. This includes making necessary fixture and supporting for lifting arrangements and lead, lift and transporting of materials from stores, reaming of holes in the mill bottom etc.

Charges for dismantling of Gear housing cover with Upper bearing housing and if necessary to replace the broken M24 studs completely removing, tapping all the holes and assembling back.

Charges for plugging the worn-out holes and marking new holes at new place on same PCD in hub assembly.

Charges for tapping the upper skirt assembly fixing new holes M24x16 Nos and cleaning the tapped holes M24x16 Nos provided for fixing clamping ring in bowl hub and bowl hub cover (M16x8 Nos)

Charges for Removal of worn out / eroded side liner assembly and top liners, air intake vanes, etc. and assembling new liners including drawl of new liners from stores and devolution of old liners to stores.

Charges for transportation from MTPS site to work shop and return back.

Charges for mounting and de mounting the vertical shaft by using overhead hoist and setting with necessary fixture arrangements on a heavy duty precision lathe (Semi-automatic turret lathe or saddle type lathe)

Charges for providing under cut at the worn out area of vertical shaft oil seal seating area for rebuilding work including the charges for fabrication of special type of fixture to accommodate in a heavy duty lathe.

Charges for rebuilding the undercut area with E7081 electrode for about 5mm in oil seal seating area.

Charges for machining the metal filled portion of the vertical shaft Mechanical face seal oil seal seating area in the heavy duty to the accurate dimension as required.

Charges for DP test to identify any crack and porous etc in oil seating area after reconditioning.

Cost of MS Welding electrodes

Cost of Cutting gas

Cost of Style 113 Graphite PTFE packing ring with size 139.7 X 114.3 X 12.7mm thick. Make: James walker inmarco.

M24 X 80 HT Hexagonal head bolts and nut with washer- Grade 10.9, Make: Unbrako

Cost of M20 X 90 HT Hexagonal socket head cap screw with washer- Grade 10.9, Make: Unbrako

Cost of M24X 120 HT Hexagonal head bolts and nut with washer- Grade 12.9, Make: Unbrako

Cost of M33 X 140 HT Hexagonal head bolts and nut with washer- Grade 12.9, Make: Unbrako

Cost of Anabond 666 (100 grm)

Hy seal Compound 30-45 Dum Dum Putty

Cost of Refractory cement

Charges for DP test kid

Charges for consumables and T& P’s

Mino and co (BID ID -1436578)