Tender For Dismantling Of Existing Non-Functional Tower Crane At 3X210 Mw Atps Anpara Sonebhadra - One layer Insulation of pipeline, valves, headers, pressure parts (I&II), ESP, Dearator & various ducts of ID/FD/PA fans & bowl mills etc. When new cladding is to be provided with 24 / 22 Gauge (GI / Al.) sheet. 2 More than one layer Insulation of pipeline, valves, headers, pressure parts (I&II), ESP, Dearator & various ducts of ID/FD/PA fans & bowl mills etc. When new cladding is to be provided with 24 / 22 Gauge (GI / Al.) sheet. 3 One layer Insulation of pipeline, valves, headers, pressure parts (I&II), ESP, Dearator & various ducts of ID/FD/PA fans & bowl mills etc. When old removed GI sheet to be re-fixed. 4 More than one layer Insulation of pipeline, valves, headers, pressure parts (I&II), ESP, Dearator & various ducts of ID/FD/PA fans & bowl mills etc. When old removed GI sheet to be re-fixed. 5 Insulation of headers in pent house of 3x210MW Boiler. When two or more than two layers of new/old mineral wool blankets/pads of thickness 40 / 50 / 60 mm are to be provided on the headers in the pent house. 6 Replacement / re-fixing of old / new G. I. / Al. sheet with the help of self tapping screw. The mineral wool will not be replaced. 7 Refractory works of main boiler andPressure Parts 8 Cleaning of Cold PA ducts (left and right) from P.A. fans outlet dampers to APH. 9 Cleaning of Cold SA ducts (left and right) from P.A. fans outlet dampers to APH. 10 Cleaning ofDog House. 11 Cleaning of Hot SA duct (Right) 12 Cleaning of Hot SA duct (Left) 13 Cleaning of Wind Box (Right) 14 Cleaning of Wind Box (Left) 15 Cleaning of Gooseneck cat house front and rear. 16 Cleaning of Economiser chamber of boiler 17 Cleaning of gallery between Reheater and arch tubes. 18 Cleaning of gallery between exit super heater and hangers tubes to conv. super heater 19 Cleaning of second pass (LTSH) 20 Cleaning offrom water wall of first pass (furnace) from ‘0’ meters to 48 meters elevation. 21 Cleaning of Pent house above furnace. 22 Cleaning of gallery between platen super heater and cold reheat headers in pent house. 23 Cleaning between exit super heater and convector super heater headers in pent house. 24 Cleaning of space between header No.10 & rear sidewall in pent house. 25 Cleaning of gallery between cold reheat headers in pent house. 26 Cleaning of gallery in left and right of pent house between water wall and skin casing. 27 Cleaning of Space below boiler drum between front water wall and front drum houseman hole. 28 Cleaning second pass of pent house (above ceiling tube of pent house) 29 Cleaning of all four Economiser hoppers. 30 Cleaning of all the four flue gas ducts from air pre-heater to ESP inlet. 31 Cleaning of inter connecting duct of flue gas at ESP inlet. 32 Cleaning of flue gas duct hopper just before and after F.G.-3 and F.G.-4 dampers. 33 Cleaning and removal of accumulated fly ashes / foreign materials / debris / scraps etc. from the boiler roof and its disposal to ‘0’Mtr.level boiler and from ‘0’Mtr. to dumping yard. 34 Removal of set refractory from steam header for checking which involves breaking of refractory by chisel and removal of same and shifting to dumping yard. 35 Complete Insulation of pipelines, pressure parts main boiler, ESP, ducts and other associated equipments. When new cladding to be provided with 20-24 gauges (G.I.)/Aluminium sheet shall be provided by the department free of cost). Work includes fabrication and fixing of cladding structure one layer of mineral wool blankets/pads or calcium silicate pipe section of thickness 40/50/60 mm, are provided/fixed at site. 36 Complete Insulation of pipelines, pressure parts main boiler, ESP, ducts and other associated equipments. When new cladding to be provided with 20-24 gauges (G.I.)/Aluminium sheet shall be provided by the department free of cost). Work includes fabrication and fixing of cladding structure more than one layer of mineral wool blankets/pads or calcium silicate pipe section of thickness 40/50/60 mm, are provided/fixed at site. 37 Complete Insulation of pipelines, pressure parts main boiler, ESP, ducts and other associated equipments. When old/removed cladding sheets to be fixed with the help of self-tapping screw, when one layer of mineral wool blankets/pads or calcium silicate pipe section of thickness 40/50/60 mm, are provided or the old/removed but usable are provided/fixed at site. 38 Complete Insulation of pipelines, pressure parts main boiler, ESP, ducts and other associated equipments. When old/removed cladding sheets to be provided with 20-24 gauges (G.I.)/Aluminium sheet shall be provided by the department free of cost). Work includes fabrication and fixing of cladding structure more than one layer of mineral wool blankets/pads or calcium silicate pipe section of thickness 40/50/60 mm, are provided or the old/removed but usable are provided/fixed at site. 39 Insulation of headers in penthouse/outside, when more than one layer of mineral wool/blankets/pads of thickness 40/50/60 mm, are provided/fixed on the headers in penthouse. 40 Application of mineral wool blankets/pads and fixing with G.I. Wire on H.P./L.P. Valves of boiler. Application of insulating powder, hard lag/ mastic compound & finishing/cladding with G.I./Aluminium sheets of 20-24 gauge wherever required as per site requirement or as instructed. 41 Application of Castable refractory 42 Application of Plastic refractory 43 Cleaning and removal of fly ash/debris etc. and their disposal to dumping yard from primary super heater chamber inside the boiler. 44 Cleaning and removal of fly ash/debris etc. and their disposal to dumping yard from Economizer chamber inside the boiler. 45 Cleaning and removal of fly ash/debris etc. and their disposal to dumping yard from gallery between re-heaters and arch tube inside the boiler. 46 Cleaning and removal of fly ash/debris etc. and their disposal to dumping yard from penthouse above furnace. 47 Cleaning and removal of fly ash/debris etc. and their disposal to dumping yard from gallery between tertiary super heater and secondary re-heater in penthouse. 48 Cleaning and removal of fly ash/debris etc. and their disposal to dumping yard from gallery between secondary re-heater and tertiary re-heater in penthouse. 49 Cleaning and removal of fly ash/debris etc. and their disposal to dumping yard from the following heating areas of boiler pressure parts from gallery between tertiary re-heater and final super heater in penthouse. 50 Cleaning and removal of fly ash/debris etc. and their disposal to dumping yard gallery between final super heater and primary super heater headers in penthouse. 51 Cleaning and removal of fly ash/debris etc. and their disposal to dumping yard from extended furnace house between 1st and 2nd pass. 52 Cleaning and removal of fly ash/debris etc. and their disposal to dumping yard from economizer hopper inside the boiler. 53 Cleaning and removal of fly ash/debris etc. and their disposal to dumping yard from gallery along with water wall header left/right in penthouse from primary re-heater inlet header to final super heater header. 54 Cleaning and removal of fly ash/debris etc. and their disposal to dumping yards from Hot secondary air duct from APH to wind box (left) 55 Cleaning and removal of fly ash/debris etc. and their disposal to dumping yards from Hot secondary air duct. from APH to wind box (right) 56 Cleaning and removal of fly ash/debris etc. and their disposal to dumping yards from Boiler furnace wind box (left) 57 Cleaning and removal of fly ash/debris etc. and their disposal to dumping yards from Boiler furnace wind box (right) 58 Cleaning and removal of fly ash/debris etc. and their disposal to dumping yards from Interconnecting duct of hot secondary air. 59 Cleaning and removal of fly ash/debris etc. and their disposal to dumping yards from inlet damper to outlet damper of air and flue gas duct of primary APH including APH. 60 Cleaning and removal of fly ash/debris etc. and their disposal to dumping yards from inlet damper to outlet damper of air and flue gas duct of secondary APH including APH. 61 Cleaning and removal of fly ash/foreign materials/debris/garbage etc. From doghouse of boiler and their disposal to dumping yard. 62 Cleaning and removal of fly ash/foreign materials/debris/garbage etc. From S-panel of boiler and their disposal to dumping yard. 63 Cleaning and removal of fly ash/foreign materials/debris/garbage/pigeon-shits etc. From buck stay of first and second pass of boiler from 11m to 80m by sweeping with hard broom/wire brush and their disposal to dumping yard. 64 Cleaning and removal of fly ash/foreign materials/debris/garbage/pigeon-shits etc. From penthouse roof of boiler by sweeping with hard broom/wire brush and their disposal to dumping yard. 65 Complete Insulation of pipe lines, Pressure parts Main Boiler, ESP, Ducts and other associated equipments- When new cladding is to be provided with 18-24 Gauge (Aluminium sheet shall be provided by the department free of cost). Work includes fabrication and fixing of cladding structure. When one layer of mineral wool blankets/ pads or Calcium silicate pipe section of thickness 25/40/ 50/ 60/75 mm, are provided / fixed at site. 66 Complete Insulation of pipe lines, Pressure parts Main Boiler, ESP, Ducts and other associated equipments-When new cladding is to be provided with 18-24 Gauge (Aluminium sheet shall be provided by the department free of cost). Work includes fabrication and fixing of cladding structure. When more than one layer of mineral wool blankets/ pads or calcium silicate pipe section of thickness 25/40/50/60/75 mm, are provided / fixed at site, 67 When old/ removed cladding sheets to be fixed with the help of self tapping screws.When one layer of mineral wool blankets/ pads or Calcium silicate pipe section of thickness 25/40/ 50/ 60/75 mm, are provided or the old/ removed but usable are provided/ fixed at site. 68 When old/ removed cladding sheets to be fixed with the help of self tapping screws,When more than one layer of mineral wool blankets/ pads or calcium silicate pipe section of thickness 25 /40/ 50/ 60 /75 mm, are provided or the old/ removed but usable are provided/ fixed at site. 69 Insulation of Headers in Pent House/ out side : When more than one layer of mineral wool blankets /pads of thickness 25/40/50/60/70 mm, are provided /fixed on the headers in pent house etc. 70 Application of mineral wool blankets/ pads and fixing with G.I. wire on H,P./ L.P. Valves of Boiler. Application of insulating powder, hard lag/ mastic compound & finishing / cladding with G.I. / Aluminum sheets of 18-24 gauge wherever required as per site requirement or as instructed. 71 Application of Refractory in Main Boiler/Pressure parts heating zones. 72 Cleaning and removal of fly ash/ foreign materials/ debris etc. and their disposal to dumping yard from Low temperature Super Heater chamber inside the Boiler. 73 Cleaning and removal of fly ash/ foreign materials/ debris etc. and their disposal to dumping yard From Economiser Chamber inside the Boiler 74 Cleaning and removal of fly ash/ foreign materials/ debris etc. and their disposal to dumping yard from From gallery between reheaters and arch tubes inside the Boiler 75 Cleaning and removal of fly ash/ foreign materials/ debris etc. and their disposal to dumping yard From pent house above furnace 76 Cleaning and removal of fly ash/ foreign materials/ debris etc. and their disposal to dumping yard From gallery between Platen superheater and reheater in pent house 77 Cleaning and removal of fly ash/ foreign materials/ debris etc. and their disposal to dumping yard From gallery between CRH header and HRH header in pent house 78 Cleaning and removal of fly ash/ foreign materials/ debris etc. and their disposal to dumping yard From gallery between divisional superheater to platen super heater in pent house 79 Cleaning and removal of fly ash/ foreign materials/ debris etc. and their disposal to dumping yard From gallery between/around all the four Divisional superheater headers in pent house 80 Cleaning and removal of fly ash/ foreign materials/ debris etc. and their disposal to dumping yard From extended furnace house between 1st and 2nd pass of Boiler 81 Cleaning and removal of fly ash/ foreign materials/ debris etc. and their disposal to dumping yard From economizer hopper of Boiler 82 Cleaning and removal of fly ash/ foreign materials/ debris etc. and their disposal to dumping yard From gallery along with water wall header left/right/front in pent house from divisional super heater to platen super heater area 83 Cleaning and removal of fly ash/ foreign materials/ debris etc. and their disposal to dumping yard Hot secondary air duct from Air pre heater to wind Box (L) 84 Cleaning and removal of fly ash/ foreign materials/ debris etc. and their disposal to dumping yard Hot secondary air duct from Air pre heater to wind box (R) 85 Cleaning and removal of fly ash/ foreign materials/ debris etc. and their disposal to dumping yardBoiler furnace wind box (L) 86 Cleaning and removal of fly ash/ foreign materials/ debris etc. and their disposal to dumping yard Boiler furnace wind box(R) 87 Cleaning and removal of fly ash/ foreign materials/ debris etc. and their disposal to dumping yard Inter connecting duct of hot secondary air 88 Cleaning and removal of fly ash/ foreign materials / debris / garbage etc. from S-panel of Boiler and their disposal to dumping yard. 89 Cleaning and removal of fly ash/ foreign materials/ Debris/ garbage / insulating materials/ pigeon shits etc. from buck stays of 1st and 2nd pass of Boiler from 11 mtr. Boiler elevation up to 80 mtr and sweeping with hard broom/ wire brush and their disposal to dumping yard. 90 Complete internal water washing of 1st pass 91 complete internal water washing of 2nd pass 92 Complete Insulation of Ducts ( Primary air, Secondary air, Flue Gas) covering entire area from PA fans ducting, FD fans ducting upto APH inlet, ESP outlet gates to ID fans upto Chimney:-When new cladding is to be provided with 20-24Gauge G.I./ Aluminium sheet. Work includes fabrication and fixing of cladding structure, when more than one layer of mineral wool blankets/ pads , are provided / fixed at site 93 Complete Insulation of Ducts ( Primary air, Secondary air, Flue Gas) covering entire area from PA fans ducting, FD fans ducting upto APH inlet, ESP outlet gates to ID fans upto Chimney:-When old/ removed cladding sheets to be fixed with the help of self tapping screws and more than one layer of mineral wool blankets/ pads , are provided or the old/ removed but usable are provided/ fixed at site. 94 Replacement/ Refixing of old/new GI / AI sheets with the help of self tapping screws 95 Erection of platform of height upto 10 mtr. . 96 Erection of platform of height upto 15 mt 97 Fixing the scaffolding pipes from 0 mtrs. to elevated duct area (above 20 meters) & dismantling the same after completion of work and thereafter shifting the pipes to site store for Complete Insulation of Ducts ( Primary air, Secondary air, Flue Gas) covering entire area from ESP outlet gate to ID fans inlet & ID fans outlet upto Chimney (only vertical & elevated duct areas).
