Tender For Maintenance Work Mechanical, Electrical And C And I Of Complete Ash Handling System Including O And M Of Furnace Bottom Ash Disposal System And Awrs System. With Dfa, Btps, Obra., Obra-Uttar Pradesh

TDR : 46125859

Tender Notice
Corrigendum Details
BOQ

Expired

Obra , Uttar Pradesh

Tender Brief : Corrigendum : Tender For Maintenance Work Mechanical, Electrical And C And I Of Complete Ash Handling System Including O And M Of Furnace Bottom Ash Disposal System And Awrs System. With Dfa, Btps, Obra.

Document Fees
₹ 2360 /-

EMD
₹ 162000.0 /-

Tender Value
Refer document

Submission Date
04-01-2025

Competition Type
Indian

Bidding Type
Tender

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Sr No	Corrigendum Date	Corrigendum	Type	New Submission Date
1	25-12-2024	Date Extenstion2	Date	04-01-2025
2	10-12-2024	Date Extenstion	Date	24-12-2024
3	07-12-2024	BOQcorrigendum	Other	10-12-2024

Name of Work: Maintenance work (Mechanical, Electrical & C&I) of complete ash handling system including O&M of Furnace bottom ash disposal system and AWRS system. (WITH DFA), BTPS, OBRA.

Sl. No.	Item Description
1	Round the clock minor maintenance, assistance in operation & breaking of clinker in Bottom Ash Hopper upto 8 mtr. furnace of Ash Handling plant, 5x200MW, BTPS, Obra (for all 5 Unit)
2	Round the clock operation of Ash Water Recirculation Systemof 5x200MW, BTPS, Obra.
3	Servicing of clinker grinder with their drive mechanism.
4	Replacement/servicing of bearing of clinker grinder.
5	Servicing of bearing housing of clinker grinder.
6	Replacement/servicing of driven/ driving sprocket. (15/45 teeth)
7	Servicing of fluid coupling of clinker grinder.
8	Servicing/overhauling of gear box type sumo ALLROYD/Premium make 30:1 of bottom ash hopper.
9	Alignment of clinker grinder motor.
10	Replacement of defective gear box/fluid coupling of clinker grinder.
11	Fabrication & replacement of overflow tank of BAH.
12	Servicing /repairing of jetting nozzle body.
13	Cleaning of jet Pulsion pump to remove chocking.
14	Servicing/replacement of Jet Pulsion Pump.
15	Servicing/replacement of pneumatic Power Cylinder for Clinker grinder.
16	Cleaning of chocking overflow line of BAH.
17	Cleaning of flushing nozzle of BAH.
18	Servicing/overhauling of bottom ash hopper feed gate with roller assembly.
19	Fabrication of feed gate BAH.
20	Removal of chocking of seal trough.
21	Refixing/replacement of wire mesh in BAH.
22	To isolate BAH during shutdown of boiler.
23	Welding to attend leakage.
24	Replacement of Jet Pulson Pump nozzle.
25	Fabrication & installation of feed sump.
26	Removal of clinker stuck up/deposited inside the furnace bottom ash hopper by pocking during the running of Unit.
27	Chocking removal of feed sump.
28	Removal chocking of bottom ash transport line.
29	Turing of MS pipe 8”.
30	Replacement of MS pipe 8”.
31	To take out foreign material like wire mesh/iron pes./pipes etc. from BAH.
32	Servicing/cleaning of air converted tank & connected pipe.
33	Refractory work in BAH.
34	Replacement of gland packing at any one end of roller of. Clinker grinder.
35	Replacement of complete Jet Pulsion Pump assembly.
36	Replacement/adjustment of chain of clinker grinder.
37	Closing & opening of discharge gate of BAH.
38	Replacement of eye bolts of access door of BAH.
39	Replacement of clinker grinder by new or shifting from other Unit and commissioning of the same.
40	Fabrication & erection of bend 4” to 8”.
41	Servicing of low pressure line valves
42	Replacement of wornout/damaged pipe of following sizes.
43	a) 1”
44	b) 2”
45	c) 3”
46	d) 4”
47	e) 6”
48	f) 8”
49	Removal of chocking of economizer hopper sluicing tank and all connected pipe line.
50	Patching of eroded plate by MS plate of 5 mm to 12 mm.
51	Replacement/alignment/servicing/overhauling of solenoid valve.
52	Replacement/servicing of nozzle of economizer sluicing tank.
53	Complete cleaning of economizer hoppers during Shut down of Unit.
54	Replacement of pocking hole cover of economizer hopper.
55	Replacement/servicing of Pneumatic Power Cylinder 8” dezurik valve of Botttom Ash discharge pipe line.
56	Servicing/overhauling/replacement of 8” dezurik valve.
57	Repairing/replacement of worn out parts of coupling 8” dia of Bottom Ash Disposal Line.
58	Replacement/servicing of air check valve.
59	Replacement/servicing of of TRESG valve 10”.
60	Replacement/servicing of TRESG valve 8”.
61	Replacement/servicing of Butterfly valve:
62	a) Size 2 ½”
63	b) Size 6”
64	c) Size 8”
65	d) Size 10”
66	Replacement/servicing of Power Cylinder:
67	a) Size 2.5”
68	b) Size 4”
69	c) Size 6”
70	Replacement / servicing of different size valves:
71	a) Size 4”
72	b) Size 6”
73	c) Size 8”
74	d) Size 10”
75	e) Size 12”
76	Replacement of Disc/Seat 1st & 2nd row of ESP Hopper.
77	Replacement of Disc/Seat 3rd & 6th row & APH Hopper.
78	Replacement of fluidizing blower “V”- belt.
79	Servicing of fluidizing blower.
80	Alignment of fluidizing blower motor.
81	Poking of ESP, APH hoppers.
82	Choking removal &removal foreign material in APH/ESP hopper.
83	Replacement of connector/gasket 8”/10”.
84	Replacement of different size bend:
85	a) Size 6”
86	b) Size 8”
87	c) Size 10”
88	Replacement of different size lateral 8”/10”.
89	Patch work by welding in different area of fly ash system up to one squire fit.
90	Cutting and replacement spool pipe pieces of different size 6’/8’/10’.
91	Servicing/cleaning of air washer nozzle.
92	Servicing/cleaning of hydro mixer nozzle.
93	Removal of chocking vacuum line.
94	Removal of choking ACT & its connected pipe line.
95	Reinforcement of ACT cylindrical portion as well as conical portion.
96	Replacement of tail pipe (adopter).
97	Replacement of hydro mixer nozzle.
98	Replacement of air washer nozzle.
99	Fabrication & erection 12” MS lateral portion in discharge sideof ACT tank pipe dia 250 mm to 300 mm.
100	Replacement/Servicing of vacuum barker system.
101	Replacement of wear plate of ACT.
102	Fabrication of wear plate of ACT.
103	Replacement of MS/CI pipe:
104	a) Size 4”
105	b) Size 6”
106	c) Size 8”
107	d) Size 10”
108	Replacement of different hopper discharge W/O adaptor.
109	Servicing of vacuum pump.
110	Alignment of motor & vacuum pump with belt replacement if required.
111	Store handling material from CSD-II to site store.
112	Fabrication & erection of bend of following size:
113	a) Size 4”
114	b) Size 6”
115	c) Size 8”
116	d) Size 10”
117	Replacement of damage bearing of vacuum pump.
118	Replacement of shaft sleeve of vacuum pump.
119	Replacement of body of hydro mixer 10”.
120	Replacement of body fad 12” x 6” mach.
121	Replacement of hopper 12” x 4.6”.
122	Replacement of sharp sheet of ash intake valve of 3rd to 6th row.
123	Replacement of ash intake valve of 1st to 2nd row.
124	Replacement of ash intake 3rd to 6th row.
125	Alignment of misaligned disposal line fitting 8”/10”.
126	Replacement/alignment of solenoid valve of 2.5”/4”/6” power cylinder.
127	Repairing of tail pipe by patch welding.
128	Repairing of C.I. bends and lateral size 8”/10”.
129	Servicing/repair/overhauling of solenoid valve of 2.5” power cylinder.
130	Servicing/repair/overhauling of solenoid valve of 4”/6” power cylinder.
131	Replacement ofMS Plate of economizer hopper and air preheater hoppers plateforms with 10 mn to 16 mm thick
132	Replacenment/cutting & welding of Y-piece of DFA system .
133	Fabrication and erection of platform on bottom Ash disposal pipe line
134	Complete Overhauling/ servicing of 132 KW AWRS pump (Make Mather+Platt.) including greasing the parts bearing etc. and repairing changing the defective part if required and repairing of bearing housing/shaft by welding, turning etc. changing the gland packing nut, bolts.
135	Complete Overhauling/ servicing of 30KW pump including greasing the parts bearing etc. and repairing changing the defective part if required and repairing of bearing housing/shaft by welding, turning etc. changing the gland packing nut, bolts including cost of all material.
136	Complete overhauling/Servicing of Horizontal centrifugal radially split twin casing slurry pump for AWRS intermediate pump house.
137	Servicing of LP ash water pump.
138	Replacement of tube connector bearing/enclosing tubes/top or inter shaft of LP pump.
139	Replacement of LP ash water pump bearing.
140	Blue matching of foundation of VT pumps after taking out pump assembly from sump.
141	Checking of eccentricity of shaft after repairing connecting the same of the VT pumps.
142	Alignment of pump and motor of VT pumps.
143	Servicing/Replacement of Gate valve 6”/10”/12”/14”/16”.
144	Servicing/Replacement of NRV size 6”/10”/12”/14”/16”.
145	Servicing of chain pulley block.
146	Repairing/ Rebuild and machining of worn out / damaged /eroded assembly parts of different type pumps and Clinker Grinder
147	Shaft of Clinker Grinder
148	Casing/Body of Vacuum Pump
149	Shaft with Impeller of Fluidizing Blower
150	Fabrication of Worm Gear byre-casting, tooth cutting and Machining of Worm Gear of Clinker Grinder Gear Box
151	Repairing and Machining of different types of valve.
152	Gate / glove valve /NRV-150 mm
153	Gate / glove valve /NRV-200/250 mm
154	Fabrication of different types of sleeve and Shaft
155	Shaft sleeve of Clinker grinder ( Material-SS-304)
156	Shaft sleeve of Vacuum pump (Material- SS-410)
157	Shaft of Fluidizing Blower
158	Balancing of Impeller of Vacuum Pump

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