Work proposal for AOH/COH of Non-Pressure Parts of Boiler Unit No. 1 to 4 of (4X210 MW) (PH-I and PH-II) at SGTPS, MPPGCL, Birsinghpur.

section-A

OVERHAULING MAINTENANCE OF ID FANS

INSPECTION / SERVICING /REPLACEMENT OF FAN BEARING

INTERNAL,INSPECTION AND CLEANING OF FANS

SERVICING OF OIL SYSTEM OF HYDRAULIC COUPLING/FLEXIBLE COUPLING INCLUDING COOLING WATER LINE VALVES AND COOLERS.

HARD FACING OF IMPELLER & BALANCING

REPLACEMENT OF SHAFT, IMPELLER & SET OF FAN BEARING.

REPAIRING OF ID FAN CASING & ASSOCIATED CHAMBER DUCT

ALIGNMENT OF FAN WITH MOTOR

MAINTENANCE OF SEAL AIR FANS

COMPLETE SERVICING/ REPLACEMENT OF FAN BEARING ALONG WITH COUPLING BALANCING

OVERHAULING MAINTENANCE OF F.D. FANS

CHECKING & SERVICING / REPLACEMENT OF FAN BRGS.

COMPLETE ALIGNMENT OF MOTOR AND FAN ALONGWITH COUPLING & BALANCING

OVERHAULING MAINTENANCE OF PA FANS

CHECKING & SERVICING / REPLACEMENT OF FAN BRGS.

COMPLETE ALIGNMENT OF MOTOR & FAN ALONGWITH COUPLING & BALANCING

REPAIRING OF PA FAN CASING (without steel)

REPLACEMENT OF IMPELLER SHAFT ASSEMBLY OF PA FAN

OVERHAULING OF TUBULAR AIR HEATER

CLEANING OF AIR HEATER INCLUDING TRANSPORTATION OF ASH

HYDROJET CLEANING OF AIR HEATER TUBES

REPLACEMENT OF AIR HEATER TUBES

APPLICATION OF REFRACTORY

EXPANSION OF ENDS OF :

NEW TUBE (FITTED IN INSTANT OVERHAUL)

OLD FITTED TUBES

FERRULING/SLEEVING IN AIR HEATER TUBES ( OLD/NEW)

REPAIRING OF HOPPERS, SUPPORT & STRUCTURE:

WITH STEEL

WITHOUT STEEL

REPAIRING INTERNAL OF AIR PRE-HEATER:

WITH STEEL

WITHOUT STEEL

REPAIRING / FABRICARION OF CANOPY OVER AIR HEATER:

WITH STEEL

WITHOUT STEEL

REPAIRING OF DIVERSION PLATE OF AIR PRE HEATER:

WITH STEEL

WITHOUT STEEL

REPAIRING OF EXPANSION JOINTS OF ALL SIX PARTS OF APH:

WITH STEEL

WITHOUT STEEL

REPAIRING OF DUCT FROM OUTLET OF PA FAN TO INLET OF COAL MILL:

WITH STEEL

WITHOUT STEEL

INSTALLATION OF SCAFFOLDING IN HOPPER OF APH CLOD/INTERMEDIATE ZONE

MAINTENANCE WORKS OF LOP SYSTEM OF ID, FD & PA FANS

DECOUPLING, ALIGNMENT & COUPLING OF LUBE OIL PUMPS

CLEANING OF LUBE OIL TANK & REPLACEMENT OF LUBE OIL OF FANS & AIR PREHEATERS

CLEANING / SERVICING OF LUBE OIL COOLERS & COOLING WATER LINE VALVES

REPAIR/ MAINTENANCE OF DUCTINGS

CLEANING OF ASH FROM INSIDE THE DUCT (COMPLETE)

REPLACEMENT OF DIVERSION PLATES /FLUE GAS SPLITTER INSIDE THE DUCT & I/L OF ESP

REPAIR OF DUCTS (without steel)

REPAIRING OF DUCTS (With Steel)

Section D

MAINTENANCE OF DAMPERS & GATES

CLEANING, INSPECTION & SEAL REPLACEMENT OF FLUE GAS/AIR PATH DAMPERS/GUILLOTINE GATES

INSTALLATION/ REPLACEMENT/REPAIR OF METALLIC EXPANSION JOINT (MEJ)

FABRICATION OF METALLIC EXPANSION JOINT.

ERECTION OF METALLIC EXPANSION JOINT.

REPLACEMENT OF NON METALLIC EXPANSION JOINTS OF DUCT AND APH

Section E

OVERHAULING MAINTENANCE OF COAL CIRCUIT

SERVICING & REPAIRING OF DRAGLINK RAW COAL FEED SYSTEM WITH ASSOCIATED SYSTEM (CLEANING, INSPECTION, REPAIRING, REPLACEMENT, PAINTING & TRIAL OF RCF)

REPAIRING/REPLACEMENT OF CENTRE FEED PIPE

REPLACEMENT / REPAIRING & SERVICING OF PIV GEAR BOX

REPLACEMENT / REPAIRING OF RCF CHUTE (BELOW RCF)

REPAIRING OF RCF BODY

WITH STEEL

WITHOUT STEEL

REPLACEMENT OF GEARED COUPLING/RESOFLEX COUPLING OF RCF

REPLACEMENT OF OIL SEAL OF OUTPUT SHAFT OF REDICON/FLANDER MAKE GEAR BOX OF RCF

SERVICING/ REPLACEMENT / REPAIRING OF RADCON/FLANDER MAKE GB OF RCF

A) REPLACEMENT OF 603 MM BORE BEND

B) REPLACEMENT OF 433 / 437 MM BORE BEND

A) REPLACEMENT OF 603 MM ID MS STRAIGHT PIPE

B) REPLACEMENT OF 603 MM ID CERAMIC LINED COAL PIPE

C) REPLACEMENT OF 433 MM / 437 MM MS STRAIGHT PIPE

D) REPLACEMENT OF 433 MM ID CERAMIC LINED COAL PIPE

REPAIRING OF NRV'S / SPLITTER / VENTURY / BEND

REPLACEMENT/SERVECING OF JOHNSON COUPLING/ GASKET OF COAL MILL OF 603/433/437MM

ROTATION OF STRAIGHT PIPE BY 180 DEGREE (603, 433, 437 MM)

REPAIRING & SERVICING OF COAL PIPES HANGERS & SUPPORTS

COAL PIPE & COMPONENTS PATCHING (IN R/MTRS)

REPLACEMENT OF VENTURI/ORIFIC PLATE

CUTTING & GRINDING OF FLANGES FROM OLD COAL PIPES/BENDS

REPLACEMENT OF SPLITTER

REPAIRING OF ISOLATING VALVE

REPLACEMENT OF ISOLATING VALVE

REPLACEMENT OF COAL CHUTE ABOVE CENTER FEED PIPE OF COAL MILL

P.F.DISCHARGE PIPE

CLEANING OF CHOCKED PF DISCHARGE PIPE OF COAL MILL

REPAIRING/REPLACEMENT OF COAL BURNER

SERVICING OF PF BURNERS

SERVICING OF PF NOZZLES

REPLACEMENT OF PF BURNERS

FABRICATION OF SPOOL PIECEOF COAL BURNER

REPLACEMENT OF PF NOZZLES

SERVICING & REFITTING OF OIL GUNS

REPAIRING/ REPLACEMENT OF LINERS OF BANJO

REPAIRING OF CORE AIR TUBE ASSEMBLY

REPLACEMENT OF CORE AIR TUBE ASSEMBLY

AIR RESISTER

SERVICING OF AIR RESISTERS IN POSITION (MAJOR)

SERVICING OF AIR RESISTERS IN POSITION (MINOR)

REPLACEMENT OF AIR RESISTER

MILLS

SERVICING & REPAIRING OF COAL MILL (CLEANING, INSPECTION, REPAIRING, REPLACEMENT, TRIAL OF MILL)

SERVICING & REPAIRING OF NITROGEN / OIL SYSTEM (INCLUDING REPAIRING OF DAMAGED LOADING CYLINDER)

SERVICING OF MILL GEAR BOX (IN- SITO CONDITION)

REPAIRING OF TURN TABLE ALONG WITH YOKE STEM ASSEMBLY IN 8.5E-9 COAL MILLS

EMPTYING, CLEANING & REPAIRING OF RAW COAL BUNKER

TRANPORTATION OF COAL REJECT TO REJECT YARD

SERVICING OF FUEL OIL PRESSURISING SYSTEM

SERVICING OF HFO PUMP

SERVICING OF LDO PUMP.

SERVICING OF HFO HEATER.

SERVICING / REPLACEMENT OF VALVES

UPTO 50 MM

ABOVE 50 MM

SAFETY VALVES

COMPLETE SERVICING OF HFO STRAINER/FILTER.

SERVICING OF HFO / LDO COMPLETE UNLOADING SYSTEM PUMPS FROM TANKER/ HEATER

OVERHAULING OF ESP

CLEANING, INSPECTION & ALIGNMENT RECTIFICATION OF ESP PASSES

INTERNAL CLEANING OF ESP FIELDS & HOPPERS

CLEANING & INSPECTION OF SUPPORT INSULATOR & ITS HEATING ELEMENTS

ALIGNMENT OF EMITTING FRAME

REPLACEMENT OF DAMAGED COMPONENTS OF ESP

INSPECTION & RECTIFICATION OF PLAIN BEARING OR, BUSH BEARINGS & BUSH BEARING HOUSINGS

REPLACEMENT / REPAIRING OF RAPPING HAMMERS OF CERM / EERM /GDRM

REPAIR / REPLACEMENT OF SHOCK BAR

REPAIR / REPLACEMENT OF PIN INSULATORS

REPAIR / REPLACEMENT OF SUPPORT INSULATORS

REPAIR / REPLACEMENT OF EMITTING FRAME

REPAIR / REPLACEMENT OF G.D. SCREEN

REPAIRING & ALIGNMENT OF COLLECTING ELECTRODE

REPLACEMENT & ALIGNMENT OF COLLECTING ELECTRODE

REPLACEMENT & ALIGNMENT OF EMITTING ELECTRODES

REPAIR & RECLAMATION OF ESP COMPONENTS

REPAIR OF ESP MANHOLE DOOR

REPAIR OF ESP HOPPERS

REPAIR OF ESP CASING :-

(I) WITH STEEL

(II) WITHOUT STEEL

SERVICING & REPLACEMENT OF RAPPING GEAR BOXES

REPAIRING STRENGTHNING & STRAIGHTNING WORK OF DERM ROOF BEAM

UNITED HITECH PVT LTD