TTPS Mech II BM Unit IV Overhauling of Electrostatic Precipitator AB path of Unit IV for the year 2025 2026

Charges for opening all the manhole doors in 7.5 mtr. and roof top of ESP, Mechanical cleaning and water washing the fields in ESP including collecting plates, emitting electrode rapping mechanism and structures inside the ESP and ESP hoppers, and closing all the manhole doors including the cost of asbestos ropes for doors completely.

Charges for fixing of lock plates (U Guide) / clip flats/any other local made clamp and repositioning the collecting plates including charges for consumables and T&P’s

Charges for tightening of bolts and nuts of rapping mechanism inner arm, outer arm and tack welding including charges for consumables and T&P’s.

Charges for draining oil from the CRM and ERM gear boxes and top up new oil in the CRM and ERM gear boxes and greasing the bearing including charges for T&P’s and consumables.

Charges for cleaning the deposited fly ash in between the shaft insulator and body, support insulator and body, cleaning the drive shafts, bearing assembly, alignment checking, assembling.

Charges for water washing the O meter area (Ground Floor) and inside the hopper area of ESP by using fire fighting hoses and nozzle including charges for consumables and T&P’s.

Charges for replacing/reconditioning the worn out shock bar /shock bar guide, such as cutting deflector plate, shock bar guide and tie rod in the rear / front end of shock bar releasing of shock bar from its position replacing / reconditioning the shock bar / shock bar guide and welding of shock bar guide and fix rod at the hopper and checking of shock bar position corresponding to collecting hammer position normally for 1 No shock bar guide including charges for consumables and T&P's.

Charges for checking, replacing of wornout pin wheel assembly.

Charges for checking, replacing of worn out plain bearing in CRM and ERM horizontal shafts etc.

Charges for checking the rapping mechanisms both emitting and collecting replacing/re-conditioning of eroded tumbling hammers etc.

Charges for reconditioning the collecting electrodes by patch welding etc., completely.

Charges for checking, reconditioning/replacing of wornout spares of Drive arrangement of emitting rapping mechanism with spares.

Charges for renewal / reconditioning of fallen Deflection plates over the primary / secondary screen plates. This work involves providing scaffolding arrangements leading and positioning and fixing the deflection plates.

Charges for bend removal by hot correction including cutting gas, labour, scaffolding arrangements etc.

Charges for dismantling, renewal of bearings & Gears and internals, reassembling of CRM gear boxes.

Charges for dismantling, renewal of bearings & Gears and internals, reassembling of ERM gear boxes.

Charges for dismantling ERM grip coupling, bearing housing, shaft, bearing & checking the bearing, bush, shaft, and renewal of worn-out bearing, reconditioning / replacing shaft, re assembling.

Charges for cleaning the accumulated ash in ESP “AB” pass outlet funnel area, screen plates & ducts up to ID inlet area.

Charges for cutting and removing the eroded portions of supporting Structures in the screen plate areas, fabrication & erection of new supporting structures, strengthening of the damaged portion in the ESP inlet side by welding and other related works in one pass including the cost of welding electrodes.

Charges for cleaning the accumulated ash inside the ESP hoppers.

Charges for renewal / reconditioning of 1 No. flange at bottom of hopper, man hole doors, poking hole, heating chamber, provided & removal of working platforms on hopper and related equipment including the cost of welding electrodes.

Charges for replacing the worn out EERM shafts with structure, tumbling hammers, bush bearings with necessary scaffolding arrangements aligning the shafts plain bearings, bush bearings, and tumbling hammers Checking the rapping mechanisms both emitting and collecting replacing/re-conditioning of eroded tumbling hammers.

Charges for replacing the worn out CERM shafts with structure, tumbling hammer, plain bearings with necessary scaffolding arrangements.

Charges for providing platform and dismantling after completion of work such as bend removal and patch up at the top of collecting plate.

Charges for checking replacing of worn out shock pad in the shock bar.

Charges for removal of damaged/ eroded/worn out ESP primary and secondary screen plates of size width 0.4m width, 12.5m length from ESP inside without damaging other inside components by providing necessary derrick arrangements.

Charges for lifting ESP primary and secondary screen plates of size one plate having width of 0.4m and length of 12.5m From ‘0’ mtr. to ESP top Elevation and re-erection, this work involves, additional support frames to be provided inside and outside ESP for properly locate and position the guide shaft assembly. Erecting the ESP primary and secondary screen plates of size one plate having width of 0.4m and length of 12.5 m after providing necessary derrick arrangements.

SWETHA ENTERPRISES (BID ID -1453208)