NCTPS I M II Circle AHP Unit II 2022 23 BAH Overhauling of Bottom ash Hopper Scrapper feeders Clinker Grinders during overhaul of unit II

Amount

Charges for dismantling, reconditioning,overhauling, renewal of spares and refitting the BAH ash discharge gate assembly inclusive of T&P's, consumables and following cost of spares. a) Bush Mat : Brass - 2Nos b) End Bracket(LH) Mat :M.S.IS226 - 1No c) End Bracket(RH) Mat :M.S.IS226 - 1No d) Roller size OD 136mm W 50mm - 18 Nos e) L205 mm Dia 50 with nut,washer and lock pin - 18 Nos f) Coupling flange Mat : M.S.IS226 - 2Nos g) Gear Rack-EN19 - 2 Nos h) Pinion shaft with gear MAT : Pinion shaft EN8, Gear EN19 - 1No

Charges for dismantling, reconditioning,overhauling and refitting the BAH ash discharge chute assembly inclusive of T&P's, consumables and following cost of SS plate. a) 8mm SS plate - 0.50MT

Reconditioning/overhauling of worn out shaft from the carrying side wheel assembly (Tension or Carrying side Wheel / Return side Wheel assemblies) and submerciable wheel renewing the shaft, bearing housings, bearings, refitting in the wheel. inclusive of T&P's, consumables and following cost of Shaft, Plummer block. a) Shaft Dia 80shaft dia 80 - 1No b) Plummer block - 2Nos (Material - EN8)

Reconditioning/overhauling of submersible wheel renewing the shaft, bearing housings, bearings, refitting in the wheel. including consumables and T&P's.

Charges for Dismantling, Reconditioning/overhauling the Scrapper feeder main drive sprocket assembly and teeth welding with special welding electrode (Bronzed) inclusive of T&P's, consumables and following cost of SS welding electrodes. a) SS welding Electrodes Dia : 4mmx350mm - 32Kgs

Removing the clinkers and ash deposit in the BAH seal trough flushing the entire depth of seal trough including consumables and T&P's.

Charges for fabrication & erection of 100 NB pipe lines for Eco & APH hoppers including consumables & T&P's.

Charges for dismantling of quenching nozzle with holder, changing or choke releasing and cleaning and assembling of same/ new including consumables and T&P's.

Charges for picking clinkers from BAH slurry trench, hammering and feeding in to the ash slurry trench including consumables and T&P's

Charges for dismantling and checking the internals of the scrapper feeder main drive gear box and replacing the worn out bearings / oil seals and assembling of spares in the gear box includes painting of gear box and transportation inclusive of T&P's, consumables and following cost of spares. a) Ist Stage Pinion gear - 1No b) Ist stage gear - 1No c) Ist stage spacer-1No d) IInd stage pinion gear - 1No e) IInd stage gear - 1No f) IInd stage spacer - 1No g) IIIrd stage gear shaft - 1No h) IIIrd stage gear - 1No i) IIIrd stage spacer - 1No

Charges for decoupling and dismantling the clinker grinder motor, gear box assembly and removing the clinker grinder bed bolts and nuts and bringing down the clinker grinder assembly, motor gear box assembly to the ground level including consumables and T&P's.

Charges for dismantling, transporting, reconditioning/ overhauling, renewal of spares and assembling clinker grinder including consumables and T&P's.

Charges for removing the clinker grinder gear box, fluid coupling, inspection and replacement if required, reerection and checking the alignment of gear box with clinker grinder drive sprocket using dial gauge including consumables and T&P's.

Complete overhaul of 1 No. clinker grinder gear box including consumables and T&P's.

Reconditioning of the fluid coupling, checking the internals, changing the worn out bearings, oil seals, 'O' rings, metal filling and machining the worn out portions in the hub and reassembling the spares including consumables and T&P's.

Charges for cutting and removing the worn-out eroded clinker grinder bed channels, supporting structures , motor bed, gear box bed and with drawal wheel assemblies and fabrication and erection of the new clinker grinder bed channels ,motor bed ,gear box bed and fixing the with drawal wheel mounting channels and wheels etc.including consumables and T&P's.

Chares for lifting and positioning the clinker grinder assembly on the mounting frame and fixing motor , gear box assembly, coupling the motor and gear box and checking the alignment etc. including consumables and T&P's.

SRI RAGAVENDRA ENTERPRISES