Servicing Repairing of duct damper in situ repairing of coal nozzle tips running and breakdown maintenance works for replacement of Coal and Oil burners and associated works of Main Boiler Non pressure parts of Unit no 4 and 5 2X500 MW BTPS Anpara

Amount

Replacement of Coal Nozzle Assly. Complete of Consisting of Coal Nozzle Casting ,Adjustable Coal Nozzle Tip, Seal Plate, Splitter Plate ,Ribbons by repaired one.

Repairing/ servicing of burner tilting lever.

Replacement of fuel Inlet elbow.

Replacement of Distance piece of Fuel Inlet Elbow.

Servicing/ revisioning of Gun Guide Assy. of AB, CD, EF& GH- Elevations.

Servicing/ revisioning of Oil Burners of AB, CD, EF, & GH- Elevations

Servicing/ revisioning of Igniter Guide pipe Assy.

Servicing/ revisioning of Scanner Guide pipe Assy.

Repairing/ revisioning of burnt Air compartments.

Servicing of Secondary Air Dampers of Wind Box.

Repairing/ revisioning of Secondary Air Dampers of Wind Box.

Repairing of Wind Box by welding.

Assembling of Coal Nozzle Assy. and transportation to site at respective elevations. Assembly consists of Coal Nozzle Casting, S.S. Coal Nozzle Tip, Seal plate, Set plates, Ribbons Side Rib plates. Welding of set plates and Side Rib plates by S.S. welding electrodes. During Assembling the required clearance between Coal Nozzle, Seal plate and Coal Nozzle Tip must be ensured for proper tilting.

Arresting of coal leakage from flange of coal burner at an elevation of corners.

Replacement of damaged bolts of burner compartments by cutting the stuffing box and welding of bolt head of required size. Restoration of stuffing box by welding.

Replacement of seal tube of oil burner/igniter/flame scanner hoses.

Servicing/ revisioning of Flue Gas, Primary and Secondary Air Dampers.

Repairing/ replacement of Eroded Flaps of Flue Gas, Primary and Secondary Air Dampers.

Repairing/ replacement of Eroded Stainless Steel Shafts of By-Plane Dampers.

Cleaning of Aerofoil of Secondary Air duct to Wind Box.

Checking and repairing of S.S. Coal Nozzle Tip, Splitter plate of Coal Nozzle Assy. from inside the Furnace (In- situ) and application of refractory if found damaged at Splitter plate.

Inspection of Boiler Drum Internals and rectification of defects observed. D.P. Testing of shell joints to check for any crack and its repair by H.P. welding, when only 10 Nos.Turbo Separators are taken out/ replacement of manhole gasket and its tightening to ensure zero leakage.

Servicing of Spring Hanger supports, Hydraulic supports, Anchors & restraints of Boiler Piping & Ducts and resetting on cold set values.

Repairing of Flue Gas/ Primary/ Secondary air Ducts byproviding M.S./ carbon steel plates over eroded portion and welding with suitable electrode.

Welding of various ducts to arrest leakage of Air/ Flue Gas.

Repairing/ replacement of bracing of Flue Gas/ Primary/Secondary air Ducts.

Servicing of Scanner Air Fan.

Fabrication and erection of Temporary Structures at different Floors of 500 MW Boilers.

Repairing/Reclamation of old & used and worn out repairable Coal Nozzle Casting.

Repairing/Reclamation of old & used and worn out repairable Coal Nozzle Tips.

SHAKSHI ENGINEERING CO.

M/S BHARAT MECHANICAL AND STRUCTURAL WORKS

M/S NISHA ENTERPRISES

A.K. ENTERPRISES