Routine / Preventive / Breakdown Maintenance Of Bowl Mills And Associated Work For Unit 1 2 And 3 Of 3X210 Mw Atps Anpara- 1 Routine / Preventive / Maintenance Of Bowl Mills, Seal Air Fans, Dampers Of Unit No. 1, 2 & 3 Of 3X210 Mw, Atps, A, anpara-Uttar Pradesh

Routine / Preventive / Breakdown Maintenance Of Bowl Mills And Associated Work For Unit 1 2 And 3 Of 3X210 Mw Atps Anpara- 1 Routine / Preventive / Maintenance Of Bowl Mills, Seal Air Fans, Dampers Of Unit No. 1, 2 & 3 Of 3X210 Mw, Atps, Anpara ( Carring Out The Above Work In Three Shift In All The Three Units Will Be Treated As One Job. ) 2 Replacement Of Roller Journal Assembly. 3 Servicing Of Roller Journal Assembly. 4 Replacement Of Worn Out Grinding Roll With New / Healthy One, When Servicing Of R.J. Assembly Is Not Allotted As Separate Job. 5 Servicing Of Pressure Spring Assembly. 6 Servicing Of Journal Stop Bolt Assy. 7 Attending Dust Leakage From R.J. Assy. Cover. 8 Replacement Of Bull Ring Segments When Replacement Of R.J. Assy. Has Been Given As Separate Job. 9 Replacement Of Bull Ring Segments While R.J. Assemblies Are Inside The Mill. 10 Refitting Of Dislocated Clamping Ring / Bull Ring Segments, When Replacement Of R.J. Assy. Has Been Given Separate Job. 11 Replacement Of Air Port Ring Assembly When Replacement Of R.J. Assy. Has Been Given Separate Job. Complete Set ( One Set Consists Of 06 Pieces ) 12 Replacement Of Air Port Ring Assembly One Piece Of Airport Ring Assembly. 13 Repairing Of Air Port Ring Assy. In Situ Condition. 14 Repairing Of Expansion Joints After Providing Patches / Welding With Suitable Electrode. 15 Replacement Of Bowl Extension Ring Segments When Replacement Of R.J. Assy. Has Been Given As Separate Job. 16 Replacement Of Bowl Extension Ring Segments While R.J. Assemblies Are Inside The Mill. 17 Replacement Of Venturi Outlet When Replacement Of M.P.O. & M.D.V.Has Been Given As Separate Job. 18 Replacement Of Venturi Outlet When Replacement Of M.P.O. & M.D.V.Has Been Given As Separate Job.In Installed Condition. 19 Repairing Of Venture Outlet In Installed Condition 20 Repairing Of Venture Neck In Installed Condition. 21 Replacement Of M.P.O. 22 Replacement Of M.D.V. 23 Replacement Of Transition Piece. 24 Repairing Of M.P.O. / M.D.V. / Transition Piece In Situ Condition By Means Of Patch / Welding. 25 Replacement Of Leaking Victaulic Coupling Rubber Gasket Of M.P.O. / M.D.V. / Transition Piece. 26 Patching Of R.C. Feeder Hopper Chute / Coal Feed Pipe In Situ Condition. 27 Replacement Of Coal Feed Pipe, ( When Replacement Of M.P.O. / M.D.V. / Venturi Has Not Been Given As Separate Job. ) Up To 2.0 Mtr. ( Per Joint ) 28 Replacement Of Coal Feed Pipe, ( When Replacement Of M.P.O. / M.D.V. / Venturi Has Not Been Given As Separate Job. ) Above 2.0 Mtr. ( Excluding Joint ) 29 Replacement Of Classifier Inner Cone, When Replacement Of R.J. Assemblies Has Been Given As Separate Jobs. 30 Repairing Of Eroded Portion Of Classifier Inner Cone. 31 Replacement Of Classifier Blade. 32 Adjustment Of Classifier Blade Operating Linkage Mechanism. 33 Replacement / Repairing Of Scrapper Guard Assembly. 34 Replacement Of Mill Side Liners, When Replacement Of R.J. Assy. Has Been Given As Separate Job. 35 Repairing Of Mill Side Liners By Patch Work / Welding. 36 Repairing / Replacement Of Mill Side Bottom Liners. 37 Replacement Of Bottom Insulation Cover Plate ( Complete Set ) 38 Repairing Of Bottom Insulation Cover Plate. 39 Checking / Replacement Of Mechanical Face Seal. 40 Attending Dust Leakage From Mechanical Face Seal. 41 Replacement / Resetting Of Dislocated Lower / Upper Skirt Assembly 42 Checking / Replacement Of Worm Shaft Bearing. 43 Checking / Replacement Of Lower Radial Bearing / Thrust Bearing Of Mill Along With Cleaning / Replacement Of Oil Pump Hub And Housing. 44 Decoupling Of Mill Motor Geared Coupling. 45 Removal & Installation Of Geared Coupling Of Mill Motor & Worm Shaft. 46 Mill Motor Alignment And Final Coupling. 47 Repairing Of Separator Body, When Replacement Of R.J. Assy. Has Been Given As Separate Job. 48 Patching On Separator Body / Mill Side. 49 Repairing Of Bowl In Situ Condition 50 Replacements Of Bowl Hub Cover, When Replacement Of R.J. Assy. Has Been Given As Separate Job. 51 Making Of Thread Hole Of Dia 24 Mm On Bottom Surface Of Bowl Hub By Drilling & Tapping 52 Replacement / Servicing Of Oil Cooler Of Mill In Situ Condition. 53 Replacement / Repairing Of Manhole Of Separator Body / Mill Side / Duct By Metal Build Up On Eroded Portion By Welding And Grinding. 54 Servicing Of Seal Air Fan. 55 Servicing Of Seal Air Filter. 56 Servicing Of Suction / Discharge Butterfly Damper Of Seal Air Fan. 57 Servicing Of Seal Air Valve On Seal Air Header Of Mills. 58 Servicing Of Hot Air Gate Assembly. 59 Servicing Of Cold Air Gate Assembly. 60 Servicing Of Hot / Cold Air Dampers. 61 Cleaning & Removing Of Fly Ash, Foreign Materials, Debris, Scrap Etc. From Common Header Of Hot Air Duct. 62 Cleaning & Removing Of Fly Ash, Foreign Materials, Debris, Scrap Etc. From Hot Air Duct Of Individual Mill. 63 Cleaning & Removing Of Fly Ash, Foreign Materials, Debris, Scrap Etc. From Cold Air Duct. 64 Welding Of Hot / Cold Air Duct. 65 Hard Facing Of Bowl Mill Spares By 2 Sqchequering Pattern Using Sequence Welding Technique In Situ Condition With Suitable Hard Facing Electrode. 66 Complete Hard Facing Of Cap Of Air Port Ring Assy. & Bowl Extension Ring By 2 Sqchequering With Suitable Hard Facing Electrode. 67 Adjustment Of Trunion Shaft 68 Replacement / Repairing Of R.J. Guard. 69 Inspection Of Upper Radial Bearing When Checking / Replacement Of Mechanical Face Seal Has Been Given As Separate Job. 70 Replacement Of Damaged Grill Of Working Platform Of Bowl Mills Of All Three Units. 71 Servicing Of Monorail Trolley At Bowl Mills Of 3X210 Mwunits Atps, Anpara.Capacity 06 Mt 72 Servicing Of Monorail Trolley At Bowl Mills Of 3X210 Mwunits Atps, Anpara.Capacity 03 Mt 73 Repairing Of Damaged Grill Of Working Platform Of Bowl Mill Of Unit#1, 2, &3 74 Cutting Of Lower Skirt Of Desired Measurement.

INR 1180 /-

INR 69000.0 /-

INR 34.50 Lakhs /-

Name of Work: Routine/Preventive/Breakdown maintenanceof bowl mills & associated work of Unit No. 1, 2, & 3 of 3X210 MW "ATPS" Anpara

Sl. No.	Item Description
1	Routine/Preventive/ maintenance of Bowl Mills, Seal Air Fans,Dampers of Unit No. 1, 2 & 3 of 3X210 MW, ATPS, Anpara(Carring out the above work in three shift in all the three units will be treated as one job.)
2	Replacement of roller journal assembly.
3	Servicing of Roller Journal Assembly.
4	Replacement of worn out grinding roll with new / healthy one, when servicing of R.J. assembly is not allotted as separate job.
5	Servicing of pressure spring assembly.
6	Servicing of journal stop bolt assy.
7	Attending dust leakage from R.J. assy. cover.
8	Replacement of Bull Ring Segments When replacement of R.J. assy. has been given as separate Job.
9	Replacement of Bull Ring Segments While R.J. assemblies are inside the mill.
10	Refitting of dislocated clamping ring / bull ring segments, when replacement of R.J. assy. has been given separate job.
11	Replacement of air port ring assembly When replacement of R.J. assy. has been given separate job. Complete set(One set consists of 06 pieces)
12	Replacement of air port ring assembly One piece of airport ring assembly.
13	Repairing of air port ring assy. in situ condition.
14	Repairing of expansion joints after providing patches / welding with suitable electrode.
15	Replacement of bowl extension ring segments when replacement of R.J. assy. has been given as separate Job.
16	Replacement of bowl extension ring segments while R.J. assemblies are inside the mill.
17	Replacement of venturi outlet when replacement of M.P.O. & M.D.V.has been given as separate Job.
18	Replacement of venturi outlet when replacement of M.P.O. & M.D.V.has been given as separate Job.in installed condition.
19	Repairing of venture outlet in installed condition
20	Repairing of venture neck in installed condition.
21	Replacement of M.P.O.
22	Replacement of M.D.V.
23	Replacement of transition piece.
24	Repairing of M.P.O. / M.D.V. / Transition piece in situ condition by means of patch / welding.
25	Replacement of leaking victaulic coupling rubber gasket of M.P.O. / M.D.V. / Transition piece.
26	Patching of R.C. feeder hopper chute / coal feed pipe in situ condition.
27	Replacement of coal feed pipe, (When replacement of M.P.O. / M.D.V. / Venturi has not been given as separate job.)Up to 2.0 mtr. ( Per joint )
28	Replacement of coal feed pipe, (When replacement of M.P.O. / M.D.V. / Venturi has not been given as separate job.)Above 2.0 mtr.( Excluding joint)
29	Replacement of classifier inner cone, when replacement of R.J. assemblies has been given as separate jobs.
30	Repairing of eroded portion of classifier inner cone.
31	Replacement of classifier blade.
32	Adjustment of classifier blade operating linkage mechanism.
33	Replacement / repairing of scrapper guard assembly.
34	Replacement of mill side liners, when replacement of R.J. assy. has been given as separate job.
35	Repairing of mill side liners by patch work / welding.
36	Repairing / replacement of mill side bottom liners.
37	Replacement of bottom insulation cover plate (Complete set)
38	Repairing of bottom insulation cover plate.
39	Checking / replacement of mechanical face seal.
40	Attending dust leakage from mechanical face seal.
41	Replacement / Resetting of dislocated lower / upper skirt assembly
42	Checking / replacement of worm shaft bearing.
43	Checking / replacement of lower radial bearing / thrust bearing of mill along with cleaning / replacement of oil pump hub and housing.
44	Decoupling of mill motor geared coupling.
45	Removal & installation of geared coupling of mill motor & worm shaft.
46	Mill Motor alignment and final coupling.
47	Repairing of separator body, when replacement of R.J. assy. has been given as separate job.
48	Patching on separator body / mill side.
49	Repairing of bowl in situ condition
50	Replacements of bowl hub cover, when replacement of R.J. assy. has been given as separate job.
51	Making of thread hole of dia 24 mm on bottom surface of bowl hub by drilling & tapping
52	Replacement / Servicing of oil cooler of mill in situ condition.
53	Replacement / Repairing of manhole of separator body / mill side / duct by metal build up on eroded portion by welding and grinding.
54	Servicing of seal air fan.
55	Servicing of seal air Filter.
56	Servicing of suction / discharge butterfly damper of seal air fan.
57	Servicing of seal air valve on seal air header of mills.
58	Servicing of hot air gate assembly.
59	Servicing of cold air gate assembly.
60	Servicing of hot / cold air dampers.
61	Cleaning & removing of fly ash, foreign materials, debris, scrap etc. from Common header of hot air duct.
62	Cleaning & removing of fly ash, foreign materials, debris, scrap etc. from Hot air duct of individual mill.
63	Cleaning & removing of fly ash, foreign materials, debris, scrap etc. from Cold air duct.
64	Welding of hot / cold air duct.
65	Hard facing of bowl mill spares by 2" Sqchequering pattern using sequence welding technique in situ condition with suitable hard facing electrode.
66	Complete hard facing of cap of air port ring assy. & bowl extension ring by 2" Sqchequering with suitable hard facing electrode.
67	Adjustment of trunion shaft
68	Replacement / repairing of R.J. guard.
69	Inspection of upper radial bearing when checking/replacement of mechanical face seal has been given as separate job.
70	Replacement of damaged grill of working platform of bowl mills of all three units.
71	Servicing of monorail trolley at Bowl Mills of 3X210 MWunits ATPS, Anpara.Capacity 06 MT
72	Servicing of monorail trolley at Bowl Mills of 3X210 MWunits ATPS, Anpara.Capacity 03 MT
73	Repairing of Damaged grill of working Platform of Bowl Mill of Unit#1,2,&3
74	Cutting of Lower skirt of desired measurement.