Tamil Nadu Generation And Distribution Corporation Limited Tender
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Tamil Nadu Generation And Distribution Corporation Limited - TANGEDCO Tender
Eprocure
Opening Date19 Dec 2024
Closing Date2 Jan 2025
Tender AmountRefer Documents
Costs
EMD
₹ 19,800Document Cost
Refer DocumentsTender Fee
Refer Documents
Summary
Nctps Ii Mi Circle Mpm Unit Ii Mill Feeders 2a To 2j Carry Out Break Down Maintenance Of
Description
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Contact
Tender Id
2024_EB_512224_1Tender No
CE NCTPS II SE M I O M 242 2024 25Tender Authority
Tamil Nadu Generation And Distribution Corporation Limited ViewPurchaser Address
-Website
http://https://www.tangedco.gov.in/
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Documents
NCTPS II MI Circle MPM Unit II Mill Feeders 2A to 2J Carry out break down maintenance of
BOQ Items
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Charges for clearing the chocked coal from the under bowl at a height of 5m, by opening the under bowl inspection door, clearing the chocked coal in under bowl manually, clearing, removing the rejects /chocked coal in upper & lower reject oulet of pyrite hopper inspection of scrapper guard assembly and carrying out minor welding works if necessary, closing of under bowl door including hire charges for T&P's and cost of consumables.
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Charges for attending breakdown works in feeder by closing of feeder inlet / bunker outlet gate manually, dismantling of feeder internals such as head pulley, take up pulley, supporting rollers etc., replacing of damaged feeder belt / bearing(s) / other internals with new/rectified one/ transporting of feeder materials from store to site/site to feeder floor at a height of 22 metres/ devolute replaced damaged material from site to stores, clearing of choked coal, overhauling and reassembling of all internals and belt tracking including hire charges for T &P's and cost of consumables.
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Charges for replacing the damaged grooved coupling/ gaskets at discharge coal pipes from mill to burner corners by providing necessary scaffolding at 10-30 metres, leading, lifting and positioning the scaffolding & supporting materials, arresting the coal pipes on either sides of the grooved coupling, dismantling and lowering of the damaged grooved coupling/gasket, lifting and reassembling of new grooved coupling with gasket, and positioning intact with coal pipes and releasing of supports and scaffolding materials, including the hire charges for T&P's and cost of Consumables.
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Charges for replacement of damaged resilent coupling disc element and alignment of motor to mill gear box by dismantling the resilent coupling, distance piece, damaged disc element and lowering in to the floor, correction of verticality and alignment of fan and motor by taking pre alignment reading and verticality, removing the motor lock plate, checking the mill gear box lock plate, complete cleaning of motor foot, base plate, housing base and positioning, correction of verticality by add/ removal of shim at driven end, non driven end and motor aligning the gear box and motor axilly and radially with in the limits, checking the tightness of all bolts, providing motor locking plate, refixing the resilent coupling with new disc element, tightening the bolts, trial run of the mill including hire charges for T&P's and cost of consumables.
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Charges for decoupling of motor and LOP pump, removing of casing, motor and LOP from its bed, removal of worn out mechanical seal, dismantling of the pump internals, cleaning the pump internals,changing the worn out parts and re assembling the pump, replacing of rectified/new mechanical seal and aligning the motor with pump, conducting of trail run including hire charges for T&P's and cost of consumables.
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Charges for dismantling and removing the insulation cover plates in order to access for removing the labyrinth seals, dismantling and removing the damaged labyrinth seals, checking the seal grooves, bure cleaning, rectification & reconditioning the damaged area for proper flow, seating area rectification of damaged insulation cover plates, removing the sheared screws, retapping the same and refixing of insulation cover plates after fixing rectified labyrinth seals including hire charges for T&P's and cost of consumables.
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Charges for attending hot air leakage in inner labyrinth seal area by removing the inner skirt cover by cutting inside the underbowl, removing the studs, removing inner labyrinth seal and placing on the floor, checking labyrinth seal inner grooves, rectifing defects, fixing of graphite rope inside the labyrinth seal grooves, flushing of seal air lines of labyrinth seal area, leading, lifting and positioning labyrinth seal and refixing the studs, reassembling inner skirt cover, checking clearance between labyrinth seal and bowl hub and conducting trail run of mill including cost of consumables, T&P's, etc.,
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Charges for removing seal air fans motor & fan coupling bolts,dismantling the motor from motor bed, removing the half coupling from shaft, bearing lock nut,bearing blocks for both drive & non drive side, removing bearing spacers, and bearing bloks of both Driven side and non driven side, shaft cover, drive seals, including hire charges for T & Ps and cost of consumables.
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Charges for checking & correcting bearing block mounting petestal with bearing block by through cleaning bottom of bearing block and petestal,applying the blue to the mounting petestal, fixing the bearing block to the blue applied petestal, checking the contact differences, correcting the bearing block uneven matching by puffing, again checking & correcting the blue matching to make full contact to the petestal; checking the contact between to two halves of the bearing blocks and correcting the differences, to ensure the full contact and checking interference between bearing block and bearing including hire charges for T & Ps and cost of consumables.
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Charges for assembling new bearings on both sides of seal air fan by thorough cleaning & surface preparation the shafts, checking the mesurements, heating & soaking the new bearings after checking the measurements fixing the bearing, both sides including hire charges for T & Ps and cost of consumables.
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Charges for checking the face out for both side bearings and making shim correction,refixing the oilrings on both side, checking freenees of the shaft, refixing the bearing block and motor coupling, corection of verticality and alignment of fan and motor by taking pre alignment reading and verticality, complete cleaning of motor foot, base plate, housing base and positioning, correction of verticality by add / removal of shim at driven end, non driven end and motor,aligning the fan and motor axilly and radially with in the limits, checking the tightness of all bolts, correcting the clearance between shaft and outer casing, filling of oil,trial run of the seal air fan including hire charges for T & Ps and cost of consumables.
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Charges for removing the damaged journal stop bolt with bush, grinding & cleaning, reassembling new / reconditioned stop bolt with bush and fixing the stop bolt in position and checking the operation of bolt including hire charges for T & Ps and cost of consumables.
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Charges for dismantling & removal of journal door from mill for rectification/ replacement/ attending defects in journal assembly/bull ring segments/ bull ring clamping ring/grinding rollers/ journal skirt/ bowl hub assembly including cost of consumables and hire charges for Tools & Plants.
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Charges for refixing the journal door after attending the breakdown works for rectification/ replacement/attending defects in journal assembly/bull ring segments/bull ring clamping ring/grinding rollers/journal skirt/bowl hub assembly including cost of consumables and hire charges for Tools & Plants.
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Charges for dismantling, complete overhauling and assembling of hoist motor including warnish coating etc.,including hire charges for T & Ps and cost of consumables.
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Charges for dismantling, complete overhauling and assembling of CT motor including warnish coating etc.,including hire charges for T & Ps and cost of consumables.
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Charges for dismantling complete overhauling and assembling of LT motor including warnish coating etc.,including hire charges for T & Ps and cost of consumables.
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Charges for CT rails & wheels alignment etc.,including hire charges for T & Ps and cost of consumables.
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Charges for checking of CT brake and correction of required etc.,including hire charges for T & Ps and cost of consumables.
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Charges for LT rails & wheels alignment etc.,including hire charges for T & Ps and cost of consumables.
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Charges for checking of LT brake and correction of required etc.,including hire charges for T & Ps and cost of consumables.
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