operation and maintenance (mechanical) activities of modex . operation along with coal preparation plant-ii (modex unit) which include the entire area of wagon tippler-7, stacker cum reclaimers- 3, 4, 5 and 6, cdi and boiler silos, apds, conveyors, dozer operation and all conveyors of cpp-ii (modex unit), coal towers feeder belts, stockyard area dispatcher building of cpp-ii, general shift, shift managers, rest rooms, magnetic separators installed at various location of conveyors. this also includes roof and terrace of conveyor galleries and buildings. . it is essential to maintain round the clock operation and maintenance of wt#7, conveying equipments, boiler coal route and cdi coal feeding to bf-8. the successful tenderer shall carry out operation and maintenance (mechanical) activities (regular and breakdown) on day to day basis to maintain uninterrupted coal blend supply to coal tower-7. scope of this contract includes activities both regularand breakdown, related to operation and maintenance (mechanical) of coal preparation plant-ii. this includes, coal conveying system from wt-7 discharge to bf-8. scope of work comprise jobs like operation, maintenance (mechanical) and upkeeping of conveyor belts, coke crushers, vibrating screens, different roller screens, flap gates, weigh feeders and associated equipments like compressors, pump houses, id fan, blowers, ventilation system, telphers, cranes etc. and general housekeeping in both general shift and shifts working hours in and around the plant including office buildings. operations and upkeep of conveyor belts for conveying coal from tippler to stacker or stockyard by gate valve operation, pull cord and emergency switch checking, chute jamming removal of y11-151, 152, 153, 154, stacker cum reclaimer 3, 4, 5 and 6 (intermediate and boom conveyor), by pass chute. performing this activity in one shift is quantified as one job. de=270 a) operations and upkeep of conveyor belts for conveying coal from stacker to silo top by gate valve operation, pull cord and emergency switch checking, chute jamming removal of following conveyors y11-156, 157, 158, 159, 160, 161. performing this activity in one shift at cpp-ii is quantified as one job. de=180 b) operations and upkeep of conveyor belts for conveying coal from stacker to silo top by gate valve operation, pull cord and emergency switch checking, chute jamming removal of following conveyors y11-162, 163, 164, 165, 166, 167, 168, 169, y11-171, 172. performing this activity in one shift at cppii is quantified as one job. de=270 c) operations and upkeep of conveyor belts for conveying coal from stacker to silo top by gate valve operation, pull cord and emergency switch checking, chute jamming removal of following conveyors y11-173, 174, 175, 176, 177 and coal tower-7, conveyor y11-206, 207, 208, 209, 210, 211. performing this activity in one shift at cpp-ii is quantified as one job. de=270 2.1.1.4 item#4 (code 4000011114) operation and upkeep of silos top and silo feeding in shift. a) operations and upkeep of conveyor belts for conveying coal from silo feeding to silos by gate valve operation, tipper car operation, pull cord, emergency switch checking, chute jamming removal of following conveyors y11-178, 179, 180, 181, tripper chute and silo measurement. de=180 2.1.1.5 item#5 (code 4000011113) operation and upkeep of apds in shift. a) operations and upkeep of apd for smooth discharge, chute jamming removal of y11-182, 183, 184, 185, gate valve operation, tail end, pit pump operation and moisture addition upkeep of area. de=180 2.1.1.6 item#6 (code 4000011112) operation of stacker cum reclaimer-3, 4, 5 and 6 and wagon tippler-7 in shift. a) operation of wagon tippler-7. de=270 b) operation of stacker cum reclaimer-3, 4, 5 and 6. de=540 2.1.1.7 item#7 (code 4000011111) housekeeping and upkeep of cpp-ii, modex unit in general shift. a) upkeep of conveyor belts for wagon tipplers-7 rail track, stone removal from tippler hopper grating, sump pump pit, stairs, walkway, upkeeps and tippler cabin for smooth operation of the plant. de=52 b) upkeep of galleries, stairs, adjacent surface drains and walkways, magnet area upkeep tippler-7 unloading to stacker route trough rollers, idlers, decking plate, snub pulley and scrappers, gallery washing and junction house jam removal of following conveyors y11-131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150. de=78 c) upkeep of conveyor belts of following conveyors y y11-151, 152, 153, 154, stacker cum reclaimer 3, 4, 5 and 6 boon conveyor and intermediate. which include jamming removal of conveyor galleries, walkways, tail end area, drive end area, snub pulley area, decking plate area, roller idler area, stairs, junction houses, surface drains etc. de=52 d) upkeep of galleries, stairs, walkway, unloading to silos route, trough rollers, idlers, decking plate, snub pulley and scrappers, gallery washing and junction house jamming removal of following conveyors y11-155, 156, 157, 158, 159, 160, 161. which include jam removal of conveyor galleries, walkways, tail end area, drive end area, bend pulley area, decking plate area, roller idler area, stairs, junction houses, surface drains etc. de=52 e) upkeep of all conveyor drive end and tail end drum, stacker to silos route trough rollers, idlers, decking plate, snub pulley, scrappers, gallery washing and junction house jamming removal of following conveyors y11-162, 163, 164, 165, 166, 167, 168, 169, y11-171, 172 etc. for smooth operation of cpp-ii plant (modex unit).removal/ collection, transportation of coal dust from the system and its disposal; removal spillages in all levels of coal de-dusting unit. de=78 f) upkeep of all conveyor drive end and tail end drum, stacker to silos route trough rollers, idlers, decking plate, snub pulley, scrappers, gallery washing and junction house jam removal of following conveyors y11-173, 174, 175, 176, 177. de=78 g) upkeep of all conveyor belts for conveying coal from stacker to silos by gate valve operation, pull cord, emergency switch checking, chute jamming removal of following conveyors y11-178, 179, 180, 181, tripper chute and silo measurement. de=52 h) upkeep of silos for smooth discharge, chute jamming removal, y11-182, 183, 184, 185, ct-7, y11- 206, 207, 208, 209, 210, 211, gate valve operation, tail end, pit pump operation and moisture addition upkeep of area. de=78 i) upkeep and housekeeping of control rooms of wagon tippler-7 and stacker-3, 4, 5 and 6 cabin, cob web removal of cabins, gardening and beautification of peripheral areas. de=78
