NIT No.9 (item no. 10)/(2025-26)

Safety equipment have to be arranged for the staff to execute the work at clarifloculator like safety belt, helmet, gloves, gumboot etc.

Closing the gate of incoming water in the clarifier by manual labour and sand begs and opening the same after completion of work.

Dewatering and cleaning of complete clarifier channels by dewatering Pump sets of suitable capacity and manual labour with proper saftey equipment as per site requirments.

Disconnecting the electricity supply from the center slipring box, motor & panel box by electrician.The Job includes making the electric connection after completion of work.

Dismantling of flocculator mechanism, lifting of main bridge, disconnection of all incoming, outgoing electric connection with separation of reduction Gear box with motor, drive head with all damage parts of Flocculator and carried out from clarifier and stacking as per instruction of Plant In charge. The job includes reassembling of complete Clariflocculator after repairing of complete system and reinstallation of all the new and repaired parts of clarifier as arms, Puddles, scrappers etc and other allied work/parts and balancing of complete flocculator and Bridge with replacement & adjustment of Tee bolts etc. as per requirement.

Dismentaling of bridge from turtable with the help of mechanical hydraulic jacks with proper support and holding the bridge with statically balanced support this include the loading, Unloading, cost of packaging and hiring of lifting arrangment to carry out the work, material, wooden square block, T&P etc. (also making welding to make strong thrust support by welding process with deploye technical staff/labour, T&P tool and tackels after complete the work as per site requirment.

Rehabilation of existing Non-functional turntable assembly for noiseless and trouble free operation of the turntable including supply of components and job work as required. this includes the following:- Repairing/Overhauling & straightening of worn-out Housing using special purpose electrodes, machining. Removing of damaged bevelgear teeth by cutting with tool and making groove for fixing of new EN-8 forging material ring duly heat treated on main C.I. Body and machining to make as per the size of existing bevel gear & final machining to make proper size for making /cutting teeth on the new ring as per existing size & shape of teeh. This job also includes replacement of Pinion of 19 teeth, suitable for Bevel Gear.Both the Bevel Gear and 19 Teeth Pinion should be duly Heat Tempered as per site conditions. As per existing design.

Fabrication and supply of bronze liner as per sample for centre mechanism of clarifier bridge the linear made out having OD=1210 mm approx, ID=970 mm approx, T=27 mm approx. The job includes replacement of existing Worn-out liners with New Liners. Making oil sealing arrangement in bottom part,middle part,by providing and filling of new oil by fixing of Namda in the turn table table in round shape in groove. As per existing design.

Renovation of gear box by Dismantling of gear mechanism, each part and cleaning all the parts carefully without damaging the gear box and repairing/replacement of all the worn-out parts which includes main bronze gear and its shaft,4nos. of bearing oil seals and lubricating oil etc. and re-assembling the complete gear mechanism and reinstallation at site with proper alignment.

Fabrication and Supply of flocculator drum made out of MS sheet, Channel, Angle bending in required shape strictly as per site requirement. The job including fixing of same as per site requirement complete in all respect. As per existing design.

Supply and fabrication of centre cage of turn table made from M.S. angle size 90x90x8mm thick, 75x75x8mm thick and 65X65X8 mm thick, M.S. Plate 8 mm thick as per site requirement. The job including fixing of same as per site requirement in all respect.

Fixing of all fabricated & hardware items like drum, centre cage, flocculator arms, bridge arm, paddles & scrapper in proper way with Chain Sprockets, Chains, Traction Wheel & also making proper balancing of arm with adjustment tie bolt etc. with the help of hydra/crane and heavy labour as per site requirement.

Complete Painting of clarifier with synthetic enamel paint of approved brand for the new portion as well as old structure of desired color combinations. The paint must be of reputed manufacture to give an even shade Two or more coats on new work as well as on old structure as per satisfaction of engineer-in-charge. Make of Paint-Asian/Nerolac/Burger.

Fabrication/supply of new hand Railing of bridge by replacement of damaged G.I. pipes of size 40mm dia. and 32mm dia. by welding/ nut bolts etc. to steel ladder railing, staircase railing and similar works whichever required at site alongwith strengthening of existing good portion of G.I.Railing by welding/nut bolts all complete in all respect as per satisfaction of Engineer-in-charge.

Fabrication and fixing of 3 nos. of fiber shed of various sizes on the flash mixture for the protection from rain water by using of MS material like MS pipe, profile sheet, nut bolts with washer etc. hardware goods as per site requirement.

Transportation charges of tools and tackles and all repairable items of clarifier and flocculater from plant to workshop and return back this includes the cost of loading and unloading on both side.

Testing & Commissioning of complete system clarifloculator on full load.

MK ENGG.CO. (BID ID -1626114)