Round the clock shift/preventive/breakdown maintenance of Bowl mills of 5X200 MW

Amount

Round the clock shift maintenance work of bowl mill coal pipe lines attending coal dust leakages. Topping of oil in auxiliaries, adjusting rollers of running bowl mills, changing of gland packing etc. in 5X200 MW Units.

Round the clock removal of chocking from SS Conical pipe, coal bunker outlet gate ,Center feed pipe,RC Feeder to bowl mill in rainy season chocked due to wet coal in the form of slurry/sticky for (5X200MW), BTPS, Obra[One job shall be work per shift per Unit]

Work of "Complete Overhauling of Bowl Mills XRP-803.

Replacement of Roller Journal Assy.

Changing of Bull Ring Segment

Servicing of R. J. assy.

Repairing of eroded portion of Classifier Cone

Replacement of Bowl Extension Ring

Replacement of Bowl Hub Cover

Servicing/Replacement of complete spring Assy.

Changing of worm shaft Bearing

Checking of Worm shaft Bearing

Checking of Lower Radial Brg./ Thrust Brg. of Bowl Mill.

Replacement of Mechanical face Seal

Fitting of Upper Skirt Assy.

Changing of Gear Coupling

Replacement of expansion joint of Hot /Cold Air Duct

Servicing of Cold Air Gate.

Replacement of Upper Radial Brg. Housing

Replacement of Mill Bottom

Replacement of Mill Sep. Top Assy.

Refitting of Bowl Hub Cover when one R.J.Assy is out

Decoupling or coupling of Mill-Motor

Removal of foreign Materials like stone boulders/Iron pieces etc. from Bowl Mills.

Replacement of worn out Classifier Blades.

Replacement of R.J. Assy along with Grinding Rolls

Checking of matching of Rim Gear and its face out

Checking of T-811 Brg of Bowl Mill

Arresting/closing of dust leakage from Mill Bottom Cover

Refitting of Trunion End Cap .

Cleaning of Hot Air duct ( During Shutdown).

Replacement of RCF Hopper (for SS Hopper)

Replacement of RCF Hopper (for MS Hopper)

Changing of MPO/MPO plate

Alignment and coupling of Mill-Motor

Making new tapped holes in the Bottom of Bowl Hub

Repairing/ replacing damaged insulation cover plate of B/M

Repairing/Replacing Mill Bottom Liner

Changing of Victaulic coupling gasket of MPO/MDV/Orifice

Servicing of Hot Air Gates

Replacement of MDV.

Welding in Hot Air duct/Cold Air duct/Header

Changing of Seal of Pneumatic Power Cylinders of Hot Air Gate

Servicing of pyrite hopper damper

Repairing/Replacing Scrapper Guard Assy in running condition of unit

Repairing/Replacing Scrapper Guard Assy in boxed up condition of unit

Removal of chocking of coal or other foreign materials from Centre Feed Pipe below RCF upto Bowl Mill

Removal of Chocking of coal of Mill

Repairing of pyrite hopper

Servicing of Hot air Dampers

Replacement of Venturie outlet of Bowl Mill

Repair/replacement of Vanes/Gusset of vane wheel assy.

Welding in Sep. Body Cover Plate/Body Liner/Bowl extension Ring

Hardfacing in Bowl Extn.Ring Cap

Installation of Restriction Ring(1 set= 6 pcs)

Removal of Restriction Ring and Block off (1 Mill)

Servicing of Journal Stop Bolt

Servicing of Pressure Spring Assy.

Servicing of ground mounted Seal Air Fan

Adjustment of Classifier blade operating mechanism

Cleaning of Oil Cooler.

Replacement of Worm Shaft Gland Packing.

Routine Checking of Bowl Mill & adjusting Ring-Roll and Pressure Spring gap.

Topping-up of Oil in Gear Case housing.

Greasing of Mill-Motor Coupling.

Greasing of Pressure Spring Assy of one Mill.

Flushing of return oil line of upper Rad. Brg.

Replacement of oil of R.J. Assy

Arresting of oil leakage from Worm Shaft Cover

Checking and adjusting of compression of Pressure Spring Assy

Oiling of Brg. Housing of Classifier Mechanism of B/M.

Servicing of Power Cylinder of Hot Air Gate

Changing of gland rope in Hot Air Gate

Filling of oil in gear housing.

Servicing of Seal Air Header Valves of Mill

Flushing of Oil Pump Hub.

Replacement of Hot Air Gate Plate Assy.

Replacement of Oil Cooler assy.

Cleaning of Hot Air/Cold air PA common duct

Servicing of 10 MT mono rail over head crane

Cleaning of cooling water system of Bowl Mill

Cleaning of Seal Air header and individual pipe line of all B/M

Fabrication of Mill Side Liner of Bowl Mill XRP-803

Repairing and Hard facing of old & used Classifier Cone

Reclamation of old & used mill bottom of Bowl Mill XRP-803

Repairing & double plating of MPO of Bowl Mill

Repairing of Venturi outlet of Bowl Mill

Repairing of pyrite hopper of Bowl Mill

Fabrication of separator body Protection liner

Repairing of MPO base plate

Repairing of eroded separator body Protection liner

Fabrication of Bowl hub cover

Fabrication of block of plate along with its support

Welding of new blocker plate & Support (01 set) below grinding roll on bowl mill body (when complete RJ assembly is in removal position)

Fabrication of Venturi Liner of ‘O’ collar of Bowl Mill (1 set=4 Nos.)

Repairing /Replacement of Venturi Liner in ‘O’ collar of Bowl Mill(1 set=4 Nos.)

Changing of Airport ring assembly of MPSP system of Bowl Mill complete set

Changing of Airport ring assembly of MPSP system of Bowl Mill single Piece

Repairing of Airport ring assembly of MPSP system of Bowl Mill single Piece

Patching of RC Feeder Hopper Chute/coal feed pipe in situ condition

Replacement of Classifier Cone of Bowl mill

M/S ROSHNI ENTERPRISES

S. S. ENGINEERING AND CO