Preventive and BDM of boiler Maintenance of Pulverized Fuel pipe and De scaling of pressure parts and removal of soot from heating surfaces of Boiler by steam blowing through wall blowers long retractable soot blowers LRSB and APH of U 8 and 9

Amount

Repairing of manholes of boiler

Repairing of peepholes of boiler

Servicing / replacement of spring hanger support and restraints of boiler (critical piping and duct) and resetting the spring hangers on cold set values

Fabrication of semicircular baffle out of 6mm or available plate & installation of the same in the ducts connecting APH outlet to ESP inlet

Welding of various ducts with arc welding to arrest leakage of air/ gas

Replacement of coal compartment assembly

Repairing / servicing of burner tilting lever

Servicing / repairing / replacement of gun guide assembly at AB, CD and EF elevation.

Servicing of S/A dampers in wind box (L&R)

Replacement / servicing of scanner guide assembly

Repairing / replacement of bracing of flue gas duct

Servicing of scanner air fan

Repair work of coal nozzle when the same is lying outside

Replacement / servicing of igniter guide assembly at AB, CD, EF elevation

To attend the chocking of coal pipe

De-scaling of Pressure Parts & removal of soot from heating surface of Boiler by steam blowing through Wall Blowers/Long Retractable Soot blowers (LRSB) from local / UCB Panel of Boiler, Unit No. 8 & 9, 2x250MW, HTPS (Extn.), Kasimpur, Aligarh. (1 job = 1Unit) (250 jobs each Unit)

Complete servicing/repairing/ replacement of jammed / damaged wall blowers of Unit No. 8 & 9 for their smooth operation as and when required.

Complete servicing/repairing/ replacement of jammed / damaged long retractable soot blowers of Unit No. 8 & 9 for their smooth operation as and when required.

Complete servicing/repairing/ replacement of steam valves of wall blowers and LRSB’s of Unit No. 8 & 9 as and when required.

Patch work on coal pipe (during shut down of Mill) Size- 200mmx200mmm

Changing of Victaulic coupling gasket

Replacement of coal pipe hangers.

Repairing of coal pipe bends at different angles at position.

Repairing of FG / PA / SA duct. (As per scope of work).

Replacement of hose of oil gun

Fabrication & repairing work of platform at various elevation of both Unit 8 & 9

Repairing of casing of Air Pre-heater

Replacement / rectification and setting out board / middle board / in board radial seal and circumferential (bypass) seals & plates of hot end & cold end of Air Pre-heater

Repairing / replacement of static seals plate by cutting, grinding, welding after fabrication of at hot end & cold end of APH for one No. sector plate

Rectification/Replacement of rotor post seal of hot end & cold end of Air Pre-heater

Resetting / replacement of axial seals and leveling of axial seals plates by means of adjusting bolts in APH

Complete overhauling of soot blowers along with gear boxes of APH

Revisioning / repair of air seal housing of guide bearings of APH

Replacement of asbestos rope of required size of man hole of APH

Cleaning of APH heating elements baskets and steam coil air pre-heater by air or water or both if required

Replacement of bracing pipe of APH

Alignment of motor with reduction gear box job

Replacement of Speed Reducer (5APC) of main drive of APH

Inspection of support bearing of APH

Inspection of guide bearing of APH jobs

Replacement of one no. rotor angle 60 degree. Job involves cutting of damaged rotor angle and assembly / fitting of new rotor angle by welding

Replacement of one no. rotor angle 300. Job involves cutting of damaged rotor angle and assembly / fitting of new rotor angle by welding

Replacement of one no. T- Bar. Job involves removal of damaged T-bar and fitting of new one by fastener & welding if required.

Replacement of one No. by pass angle. Job involves removal of damaged bypass angle by cutting and fitting of new bypass angle by welding

Scaffolding in cold end of A.P.H. for cleaning of cold end basket

Overhauling of lube oil pump of guide / support bearing of APH

Cleaning of APH Lube oil filter

Cleaning of APH oil cooler

Leveling of rotor

Servicing of lube oil system of guide / support bearing of APH. One job includes one lube oil system of guide / support bearing

Cleaning / replacement of cold end Baskets of one No. APH

Opening of all the access door of APH HE & CE for inspection & execution of the work & closing them after completion of work by applying holdtite & replacing old asbestos with new one

Servicing of Rotor drive unit of APH.

Servicing of air motor of APH

Servicing / Repairing of single nozzle cleaning device & checking of travel of APH

Repairing of expansion joint / strengthen of old welding duct from flue gar/air inlet damper to flue gas / air outlet dampers of APH

Servicing of electric hoist

Dismantling & Lowering of APH Hoist trolley from it’s position and after start of work lift it & assemble it to the same position.

Replacement of guide bearing

Replacement of support bearing

Replacement of guide trunion

Complete overhauling of Air pre heater gear box(5APC)

Servicing of Flue gas damper at APH Inlet/outlet.

Servicing of PA / SA damper at APH Inlet/outlet.

Servicing of guillotine gate at ESP Inlet/outlet.

Fabrication of damper flap of Flue gas.

Replacement / repairing of baffles plates (directing plates) at ESP inlet / Outlet (all four passes of ESP). Repairing of FG Duct up to ESP inlet (Just before Honey bee structure of ESP), Economizer and APH hopper. Repairing of PA / SA duct. (As per scope of work).

Repairing and internal cleaning including one coat of Primer of heating element baskets of Air Preheater (As per scope of work)

M/S UNIVERSAL ENGG.CO