tender for annual overhauling of scrapper conveyor, discharge gate, bottom ash hopper, clinker grinder, nozzle set during annual overhauling of unit # 3 of 3x210 mw atps, anpara. - overhauling of scrapper conveyor 2 overhauling of spray system of scrapper conveyor 3 fixing of liner plate over bottom mother plate& inclined mother plate of scrapper conveyor 4 fixing of liner plate over vertical side plates of scrapper conveyor 5 cleaning of seal water trough with drain pipe 6 cleaning of refractory system with quenching 7 repairing of damaged casteble refractory 8 repairing of poke hole pipe & reducer 9 fabrication & fixing of hook on damaged refractory 10 replacement of quenching nozzle body 11 repairing & replacement of quenching nozzle body 12 overhauling of clinker grinder including seal line 13 repairing of damper flaps of suction duct & discharge plate of clinker grinder 14 repairing of discharge chute of clinker grinder 15 fabrication &fitting of by pass chute of clinker grinder 16 replacement of damaged pipe bends & pipe, size 40mm nb to 150 mm nb for bends 17 replacement of damaged pipe bends & pipe, size 40mm nb to 150 mm nb for pipe 18 overhauling of jetting nozzle of scrapper conveyor (work of one nozzle = one job) 19 overhauling / replacement of different valves located at different places at scrapper conveyor site 20 complete overhauling of discharge gate of bottom ash hopper including repairing of gate flaps & shaft assembly and other minor parts dismantling from main body, removal of discharge gate, cutting of flap after removal of fire clay, dismantling of bushes of different size as per scope of work 21 complete overhauling of discharge gate of bottom ash hopper (in which new flap will be provided by department free of cost) as per scope of work 22 replacement of damaged ms plate of bottom ash hopper chute by cutting & welding with new ms plate 23 cutting of top support (twisted/tilted top support brackets) & fixing after proper alignment after repairing 24 repairing of overflow box by cutting 25 providing scaffolding inside the bottom ash hopper of the boiler for different works in the furnace bottom ash hopper system 26 fabrication of bended liner plate size : 1500 x 600 mm plate at head & fixing with mother plate & hard facing 27 painting of scrapper conveyor body inner & outer (both) side with one coat of red oxide primer & two coat of heat resistant paint (up to 300ºc) of approved color. 28 repairing of discharge end flange of bottom ash hopper 29 repairing of swing wheel & bracket of scrapper conveyor 30 repairing and straightening of bulged/ eroded scrapper conveyer body 31 repairing and straightening of bulged/ eroded scrapper conveyer body