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| 1 | Overhauling of U#2 AHP Mechanical System |
| 2 | BA Feed gate actuator cylinder Dismantling cylinder seal kit checking if required replacement, gasket fitting and cylinder fitting if required cylinder replacement |
| 3 | BA Feed gate allignment,checking/ replacement of side guide angles, rollers, wedges including water leakage arrest from enclosure body, checking/replacement of enclosure and welding of joints inside enclosure |
| 4 | BA Clinker grinder overhauling(Dismantling of Crusher, checking/replacement of ShaftStructure, Cam Segments, Wear Plates, Bearings, Sprocket etc) and/or replacement of complete assembly of Crusher |
| 5 | BA Clinker Grinder gear box & fluid gear box to clinker grinder. Gearbox, Fluid Coupling replacement if necessary |
| 6 | BA Jet Pulsion pumps overhaulingby dismantling the whole assembly & checking/replacement ofdamaged parts like nozzle, combine tube, Tail pipe, nozzle insert and replacement of MS pipe after the jet pump up to KGV |
| 7 | BA Hopper four side trough seal nozzlechecking, welding of nozzle pipe. Seal trough cleaning & waterflushing. Replacement of seal trough header pipe upto 30 Mtrs |
| 8 | Checking of BA area CI bend(45 °, 90°bend & 45° lateral) after dismantling of both side coupling and ifrequired replacement |
| 9 | BA Clinker grinder chute checking,Repairing/replacement,welding and refitting |
| 10 | BA hopper all wall jetting nozzles and emergency door jetting nozzles dismantling, cleaning and replacement if required |
| 11 | BA hopper looking glass, water nozzle & inlet pipe checking and if required replacement |
| 12 | Checking & Replacement of couplinggasket below BA hopper. Replacement of coupling if any founddamaged |
| 13 | Checking,servicing/replacement of 200NBKGV of BA area |
| 14 | Checking and servicing/replacement of water line valves(Gate, Globe, and Plug) at BA area & FAE tower area |
| 15 | Checking and replacement of economizerhopper knife gate valve after dismantling from its position andalso checking/replacement of adaptor below KGV |
| 16 | Checking of economizer area all waterline & its valves and replacement wherever is required |
| 17 | Replacement/repairing of flushing apparatus of Economizer Hopper. Also replacement of drop pipe below the flushing apparatus |
| 18 | Replacement/reparing of seal box of Economizer Hopper |
| 19 | Dry & wet cleaning of 04 nos. Economizer Hoppers and removal of ash & debris by bagging or by water.Also cleaning of economizer platform area and disposal of ashto dumping yard |
| 20 | Dry & wet cleaning of ash & debris from inside of 08 nos. Air Preheater hoppers & adjacent ducts by bagging and disposal at dumping yard |
| 21 | Vacuum line Gasket checking and replacement in vertical & horizontal portion of 7\\", 8\\" & 10\\" line of A, B & C stream including Air Preheater line. Replacement of coupling if any found damaged. |
| 22 | Checking/Replacement of Seat, Discn Fluidizing tiles, Bearings, Gaskets of Diffuser intake valves and Ash intake valves of 56 nos ESP Hopper & 8 nos APH Hopper. |
| 23 | ESP hopper fluidizing tiles dismantling checking, replacement and refitting |
| 24 | Checking/repairing/replacement of vacuum breakers |
| 25 | Cleaning of bag filters, surge hoppers nuva feeders of A, B & C stream and disposal of ash to the dumping yard |
| 26 | Each Nuvafeeder top gate & bottom gate seat, disc & fluidizing tiles & other parts checking and servicing/replacement and cleaning |
| 27 | Checking of each nuvafeeder vent valve, equalizing valve. Replacement of venting line to surge hopper, equalizing line and vent hose. Checking of nuvafeeder body fluidizing pad and replacement if necessary |
| 28 | Surge hopper wall body welding checking repairing and strengthening for A, B & C stream. |
| 29 | Checking & Replacement of each Transfer Hopper Fluidizing Tiles. Checking and servicing/replacement of Top & Bottom Swing Disc gate valve and Vent & Equalizing valve, Swing Disc gate valve both side bearing |
| 30 | Checking and Replacement of Square Fluidizing Tiles with gasket of Surge Hopper for A, B & C stream |
| 31 | Checking, cleaning/replacement and Refitting of total filter bag of FAE tower of A, B & C stream including pulse jet bar |
| 32 | Checking/Replacement of wetting head nozzles, internals of collector tank and tailpiece for A, B & C stream |
| 33 | Wet mode air washer nozzle checking/ replacement of A, B & C stream. Ash cleaning inside air washer |
| 34 | Dry mode air washer nozzle checking / replacement. Ash cleaning inside of air washer |
| 35 | Checking & replacement of Double Disc Swing Gate valve at inlet of air washer (Wet & Dry) and at Dry mode vacuum relief valve |
| 36 | Replacement of Collector Tank Cone |
| 37 | Flushing/cleaning of Fluidizing air line of ESP hopper & FAE Tower-Surge Hopper, Transfer Hopper & Nuva Feeder |
| 38 | Checking/servicing/replacement of 8\\" & 10\\" TERSG valve and associated match piece & coupling |
| 39 | Checking and Servicing/Replacement of Air Intake valves of vacuum line |
| 40 | Fly Ash line bend,elbow,match piece, wear piece & Tee checking/replacement of A, B & C stream |
| 41 | Replacement of 8\\",10\\" CI Pipe of fly ash vacuum line and 7\\" CI Pipe of Air Preheater Hopper vacuum line. |
| 42 | Replacement of different size (up to 300 NB size) pipelines including bend, nipple, union, Tee, Coupling etc. of FAE tower, Bottom Ash & Eco hopper area |
| 43 | Dismantling and re-installation of all of the 56 nos. Diffuser Intake valve / Ash Intake valve adapter of ESP hoppers with replacement of gaskets and necessary action towards protection of vacuum lines during water jetting inside ESP |
| 44 | A, B & C stream vacuum line dismantling below ESP hopper and water cleaning of vacuum line from Air washer to Vacuum Pump house |
| 45 | Rotation of CI Dry Ash Vacuum Line from 175NB to 250NB CI pipe by proper placement, alignment and fitting |
| 46 | Fabrication & Erection of Platforms and Miscellaneous structural steel work at Eco Hopper area, FAE Tower area of U#1 AHP |
| 47 | Replacement of DRC Pipe,Bend,Tee Size up to 300NB at FAE Tower and Eco Hopper area |
| 48 | Dismantling & Replacement of Bottom Ash Hopper Feed Gate Assembly with Enclosure and Pneumatic Power Cylinder Please Enable Macros to View BoQ information |
