Service contract for Overhauling of Mechanical system for Ash Handling plant of U 3 Stg II under AHP MM II at SgTPP

BA Feed gate actuator cylinder dismantling, cylinder seal kit checking if require replacement,gasket fitting and cylinder fitting, if require then cylinder replacement.

BA Feed gate alignment checking/ Replacement of side guide angles, rollers, wedges including water leakage arrest from enclosure body & view glass checking and replacement, if required.

BA Clinker grinder overhauling (Dismantling of crusher,checking/replacement of shaft, cam segments, sleeve, bearings, wear plates, sprocket etc.)and/or replacement of complete assembly of clinker grinder

BA Clinker Grinder gear box & fluid

BA Jet Pulsion pumps overhauling/replacement including checking/replacement of nozzle tip, nozzle plate, wear piece intermediate, throat increaser.

BA hopper four side trough seal nozzle checking, welding of nozzle pipe. Seal trough cleaning & water flushing.

BA clinker grinder feed sump checking, Repairing/replacement, welding, painting and refitting

BA hopper all wall jetting nozzle checking/replacement.

Checking of BA area KGV then servicing/replacement if required.

Checking & servicing/replacement of Water line valves (Gate, Globe and Plug) at BA area.

Application of refractory by gunning machine including supply and fixing of SS anchors and SS wire mesh inside Bottom ash hopper

Checking and Servicing/Replacement of Economizer hopper KGV

Checking/replacement if required of drop pipe below each eco hopper & Fabrication & erection of adaptor below each Economizer hopper

Replacement of 200 NB MS discharge pipe from flushing apparatus including fabrication of miter cut bends and reducers.

Replacement of 250NB/300 NB MS/ DRC Pipe

Dry & wet cleaning of of Economizer hoppers

Dry & wet cleaning of ash from inside of Air Preheated hoppers

Vacuum line Gasket checking and replacement

Overhauling of ESP Material Handling valve replacement if required

Overhauling of APH Material Handling

Replacement of ESP hopper fluidizing tiles and installation of flushing arrangement with nipple and plugs.

Wetting head nozzle cleaning

Wetting head replacement if required

Replacement of Collector tank cone

Checking/replacement (if required) of Impingement plate/wear plate/baffle plate inside each Collector tank

Checking/replacement (if required) of Collector tank drop pipe

Wet mode air washer nozzle cleaning /replacement. Ash cleaning inside of air washer.

Fluidizing airline flushing/cleaning For ESP hoppers

Fly ash pipeline (6", 8" & 10") checking /replacement, if required

Fly ash pipe line (vacuum line) bend, elbow, lateral, match piece checking & replacement

Checking/servicing/replacement of Segregating valves 200 NB and 250 NB.

Checking/servicing/Replacement of vacuum breakers

Servicing / Replacement of all water line valves of FAE Tower ,necessary rectification if required

Water washing of 200 NB Vacuum line from Vacuum pump to Collector Tank, Vacuum Pump and Silencer

i)Replacement of different sizes of Water/Slurry pipeline (200 NB & above ) ii)Replacement of Vacuum Pumps Suction lines

Replacement of different sizes of water pipeline (15 NB to 150 NB )

Cleaning of Buffer hopper, Intermediate Surge hopper, Transfer hopper, Air lock vessels and disposal of ash from worksite to suitable place (as per instruction of department) for FAE tower #4A & #4B

Each Air lock vessel#s top & bottom gate seat and disc checking/replacement(if required)

Each air lock vessel's vent/equalizing valves, venting & equalizing line, air lock vessel#s fluidizing pad checking and if required, dismantling and repairing and replacement if required

Intermediate Surge hopper wall body welding checking, repairing and strengthening

Checking/replacement of each Transfer vessel fluidizing tiles, top & bottom gate, vent/equalizing valve

Checking/repairing/replacement of square tiles with gasket of Intermediate Surge hopper.

Checking/cleaning/replacement of total filter bags for all buffer hoppers of FAE tower #4A & #4B including pulse jetting ba

Installation of different types of valve (20 NB to 250 NB) for ash handling system 70.000 Number 545.59 38,191.30

Fabrication & Erection of Platforms with hand rail at different areas at AHP, STG-2 i) ISH#3A & 3B Top plate replacement. ii) ISH# 3A & 3B seal box area enhancement. iii) Erection of platform below 16 Nos. Branch Segregating Valves

i)Couplings /Bends/Lateral checking and rectification by fabrication if required for 200NB and above pipe lines. ii) Replacement of coupling and gasket 200NB/250NB CI lines at U#4, ESP& APH

Replacement/repairing of flushing Apparatus of Economizer hoppers

Replacement/repairing of seal box of Economizer hoppers

Rotation of 200NB C.I Pipe Lines of U#3 ESP&APH Hoppers with inside cleaning of pipelines

Rotation of 250NB C.I Lines of U#3 ESP& APH Hoppers with inside cleaning of pipe lines

Refractory cooling header(100NB,SS316) And cooling water supply pipe (25 NB, SS 316) checking, fabrication & replacement

Adopter below ESP Hoppers & APH Hoppers Checking, repairing & replacement if required

Checking and Servicing/replacement of Manual KGV below ESP & APH Hoppers

Dismantling & Replacement of bottom hopper feed gate including pneumatic cylinder assembly

Replacement and strengthening along with encasing of clinker grinder drive motor base frame including dismantling and re-erection of drive motor, Gear Box and Fluid coupling