Cleaning of accumulated Ash inside pent house and water washing inside boiler 2nd pass

Removal of accumulated ash inside pent house through manhole door and scrapping of sticking ash from boiler tube top surfaces of skin casing, boiler tube header surfaces using scrapping plates and wire brushes, etc, inside the highly ash polluted and unapproachable in pent house area and the ash transporting to ‘0’m from respective elevations by using pulley arrangements including cost of consumables, hire charges for T&P’s, etc.,

Transportation of ash & dumping the ash into MTPS Ash dyke.

Cleaning of boiler in 2nd pass & inter pass area such that LTSH, LTRH, Economizer tubes of upper & lower bank each sides, Final Reheater and inter pass slope area by water washing, including of transportation of fire fighting hoses, nozzles, valves and other materials from Fire fighting office to site at various location and fitting to the site hydrant points at various elevations and returning back to Fire fighting office after completion of work.

Removal of Ash in Economizer slope duct (21m x 12m) at boiler second pass with highest level of Safety provision like life line safety belt, tools etc.

Arrangement of platform and scaffolding materials and erection of the same wherever required in Economizer slope area for inspection of eroded portion, patch welding to avoid air-ingress & accumulation ash into insulation.

Patch welding works in the worn out portion economizer slope area to avoid air-ingress & accumulation of ash into insulation.Reheater & Superheater side)

Removal of insulation double layer (60mm + 60mm = 120mm thick) from damaged platen header room inside pent house and refixing after completion of rectification works & required insulation bringing from stores.

Transporting the refractory from MTPS-II central store to boiler "0" mtr, leading and lifting to the required area of pent house by providing chain block, pulley and rope.

Removing of old refractory inside pent house area and bringing to ‘0’m, including cost of all consumables, tools and plants etc.,

Providing shuttering for refractory and applying new refractory in the required area and restoration of platen header room including consumables and hire charges for T&Ps.