MTPS I MP Unit I Complete inspection of Mill internals reconditioning renewal of worn out parts and bearings etc in Mills 1C and 1E

Amount

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

Charges for inspection 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 centre feed pipe, 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 etc. 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 3 Nos. 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. bolt 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 cleaning, surface, edge preparation, metal filling, cutting MS plate to the required size 300x300x40mm thick, and welding the gap in between mill base and MS Plate.

Charges for pre heating and welding the cracked portion of mill base and gear housing outside the mill near reject chute mouth area.

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.

Cost of MS Welding electrodes

Cost of 3 mm non metallic gasket

Cost of Special welding electrode make ESAB- 802

Cost of Cutting gas

Cost of Style 113 Graphite PTFE packing rings

Charges for consumables and T & Ps

RAMASAMY ENGINEERING