Overhauling of U 1 AHP Mechanical System under AHP MM Stg 1 at SgTPP scheduled in 2025

BA Feed gate actuator cylinder Dismantling cylinder seal kit checking if required replacement, gasket fitting and cylinder fitting if required cylinder replacement

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

BA Clinker grinder overhauling (Dismantling of Crusher, checking/replacement of Shaft Structure, Cam Segments, Wear Plates, Bearings, Sprocket etc) and/or replacement of complete assembly of Crusher

BA Clinker Grinder gear box & fluid coupling checking, oil replacement, Alignment of motor to gear box to clinker grinder. Gearbox, Fluid Coupling replacement if necessary

BA Jet Pulsion pumps overhauling by dismantling the whole assembly & checking/replacement of damaged parts like nozzle, combine tube, Tail pipe, nozzle insert and replacement of MS pipe after the jet pump up to KGV

BA Hopper four side trough seal nozzle checking, welding of nozzle pipe. Seal trough cleaning & water flushing. Replacement of seal trough header pipe upto 30 Mtrs

Checking of BA area CI bend(45 °, 90° bend & 45° lateral) after dismantling of both side coupling and if required replacement

BA Clinker grinder chute checking, Repairing/replacement,welding and refitting

BA hopper all wall jetting nozzles and emergency door jetting nozzles dismantling, cleaning and replacement if required

BA hopper looking glass, water nozzle &inlet pipe checking and if required replacement

Checking & Replacement of coupling gasket below BA hopper. Replacement of coupling if any found damaged

Checking,servicing/replacement of 200NB KGV of BA area

Checking and servicing/replacement of water line valves(Gate, Globe, and Plug) at BA area & FAE tower area

Checking and replacement of economizer hopper knife gate valve after dismantling from its position and also checking/replacement of adaptor below KGV

Checking of economizer area all water line & its valves and replacement wherever is required

Replacement/repairing of flushing apparatus of Economizer Hopper. Also replacement of drop pipe below the flushing apparatus

Replacement/reparing of seal box of Economizer Hopper

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 ash to dumping yard

Dry & wet cleaning of ash & debris from inside of 08 nos. Air Preheater hoppers & adjacent ducts by bagging and disposal at dumping yard

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.

Checking/Replacement of Seat, Disc Fluidizing tiles, Bearings, Gaskets of Diffuser intake valves and Ash intake valves of 56 nos ESP Hopper & 8 nos APH Hopper.

ESP hopper fluidizing tiles dismantling checking, replacement and refitting

Checking/repairing/replacement of vacuum breakers

Cleaning of bag filters, surge hoppers nuva feeders of A, B & C stream and disposal of ash to the dumping yard

Each Nuvafeeder top gate & bottom gate seat, disc & fluidizing tiles & other parts checking and servicing/replacement and cleaning

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

Surge hopper wall body welding checking repairing and strengthening for A, B & C stream

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

Checking and Replacement of Square Fluidizing Tiles with gasket of Surge Hopper for A, B & C stream

Checking, cleaning/replacement and Refitting of total filter bag of FAE tower of A, B & C stream including pulse jet bar

Checking/Replacement of wetting head nozzles, internals of collector tank and tailpiece for A, B & C stream

Wet mode air washer nozzle checking/ replacement of A, B & C stream. Ash cleaning inside air washer

Dry mode air washer nozzle checking/ replacement. Ash cleaning inside of air washer

Checking & replacement of Double Disc Swing Gate valve at inlet of air washer (Wet & Dry) and at Dry mode vacuum relief valve

Replacement of Collector Tank Cone

Flushing/cleaning of Fluidizing air line of ESP hopper & FAE Tower-Surge Hopper, Transfer Hopper & Nuva Feeder

Checking/servicing/replacement of 8" & 10" TERSG valve and associated match piece & coupling

Checking and Servicing/Replacement of Air Intake valves of vacuum line

Fly Ash line bend,elbow,match piece, wear piece & Tee checking/replacement of A, B & C stream

Replacement of 8",10" CI Pipe of fly ash vacuum line and 7" CI Pipe of Air Preheater Hopper vacuum line.

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

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

A, B & C stream vacuum line dismantling below ESP hopper and water cleaning of vacuum line from Air washer to Vacuum Pump house.

Rotation of CI Dry Ash Vacuum Line from 175NB to 250NB CI pipe by proper placement, alignment and fitting.

Fabrication & Erection of Platforms and Miscellaneous structural steel work at Eco Hopper area, FAE Tower area of U#1 AHP

Replacement of DRC Pipe size up to 300NB At FAE Tower and Eco Hopper area