TTPS Mech II BM Unit IV Drum inspection cleaning of drum internals doors Overhauling of phosphate dozing system water washing and cleaning of I pass Furnace II pass Boiler structure by water jet in Unit IV Boiler for the year 2021 2022

DRUM OVERHAULING: Charges for opening the drum manhole doors, cleaning & inspection of drum internals, flushing of phosphate dosing line by cutting and welding, cleaning and inspection of screen dryers, and providing new gasket for manhole doors and Overhauling of phosphate dozing system in PRDS station.

Charges for Overhauling of peep hole door assembly in Boiler by cleaning, inspection of pins, studs, bolt & nuts, lever, operation freeness, replace the sealing asbestos rope etc., and rectification of defects if any, including the cost of all required consumables. Overhauling of man hole door assembly in Boiler by cleaning, inspection of pins, studs, bolt & nuts, lever, operation freeness, replace the sealing asbestos rope etc., and rectification of defects if any.

Overhauling of 44 Nos. nozzle valves, 40 Nos. Oil/ steam valves etc., in HFO/LFO operating stations, and fuel firing stations, 2 Nos. HFO strainers, HFO drain lines, drain oil tank and pump etc., in Boiler IV & V.

Cleaning of I & II pass by water washing: Water washing of Interpass and Ist pass Water washing of boiler inter-pass area (area inclusive of re-heater coils, water wall Screen tubes, S.H Screen tubes etc.). Water washing of boiler I pass water walls inclusive of gooseneck bends area through peepholes. Water washing of boiler II pass.

Cleaning of boiler structure up to 56m EL by water jet washing on all four sides: Charges for Transportation of fire fighting hoses, nozzles, valves and other materials from stores to site at various location and fitting to the site hydrant points at various elevations and cleaning of all the four sides of Boiler structures, outer casing of I&II pass, floor grills up to 56m level and returning back to stores after completion of work.

Charges for transportation, erection of sky climber inside the boiler and dismantling after completion of work.

Shifting of sky climber.

Removal of heavy lumps of shoot deposited on water walls and platen super heater coil tubes by using wire brushes / scrapping with assistance of sky climber.

Charges for leading lifting of scaffolding materials and erection of platform and scaffolding at S.H/W.W screen tube area, Eco hanger tube area, Economiser Hopper area and ‘S’ panel area to conduct Boiler tube thickness survey and tube rectification work and removal of platform and scaffolding.

Charges for leading, lifting and arranging platform and scaffolding where required in the boiler and dismantling after completion of work.

Charges for fin welding by cleaning, surface preparation and welding.

Cleaning the debris in the boiler after synchronization Charges for removal of all solid waste like cotton/wool waste, insulating materials, waste welding rod cut bits, spillage of oil etc. from boiler 0 mtr to 52 mtr floor areas and devolute metal scrap to central stores/TTPS. (Lorry will be provided by board at free of cost)

Charges for cleaning & Water washing the boiler ground floor area after over hauling of Boiler.

SUDHA ENTERPRISES