Overhauling work of Bottom Ash hopper system and DFA system of unit no. 12, BTPS, Obra

Amount

Replacement of MS/CI pipe: Size 8"

Replacement of MS/CI pipe: Size 10"

Replacement of different hopper discharge W/O adaptor.

Replacement of ash intec valve 1 & 2 row of diffuser.

Servicing of vacuum pump.

Alignment of motor & vacuum pump with belt replacement if required.

Rectification/replacement of damaged plate, pipe etc. of Collecting Tower of Unit No. 12.

Replacemnet of body of hydro mixer 10"

Replacement of body fad 12"X6" mach.

Replacement of air washer tank at ACT tower.

Fabrication & replacement of flushing header nozzle.

Fabrication & erection of seal box of bottom hopper overflow line.

Fabrication & replacement of BAH feed gate housing by 12/16 mm MS plate.

Refractory (patch work) works in Bottom ash hopper.

Providing shuttering to carryout the refractory work.

Fabrication & erection of Anchor of BAH.

Scaffolding work in Bottom ash hopper.

Isolation of Bottom Ash Hopper.

Cleaning of Ash slurry sump.

Replacement of 12"/14" MS. Pipe after transportion from store/sie stoe and shifting old dismentled M.S. pipe to srap yaed inside power station. Dismantle the old & used 14" MS pipe line & Open the coupling, cutting the joint etc. Safety and shift the same in the site store/scrap yard.

Fabrication and Erection of MS bend.

Replacement of 14" knife edge gate ash flow valve (dezurik valve).

Replacenment/cutting & welding of Y-piece of DFA system of unit no. 12.

Enamel painting work on complete collecting tower, ash slurry pump, vacuum pump, HP/LP pump, seal water pump including connected pipe lines of unit No. 12.

Removal of chocking of seal trough.

Straightening out side seal trough plates by welding/patching with plates.(10 mm thick ms plate).

Removal of iron pieces, garbage, oil deposits, refractory pieces etc from BAH by its shifting away. Cleaning of complete hopper by water jet.

Replacement of MS pipe 8".

Servicing of clinker grinder with their drive mechanism.

Replacement/servicing of driven/driving sprocket. (15/45 teeth).

Servicing of Fluid coupling of clinker grinder.

Servicing/Overhouling of gear box type sumo. ALLROYD/Premium make 30:01 of bottom ash hopper.

Alignment of clinker grinder with motor.

Replacement of complete jet pulsion pump assembly.

Servicing/replacement of power cylinder of Clinker Grinder.

Cleaning of flushing nozzle of Bottom Ash Hopper.

Servicing/ Overhauling of Bottom ash hopper feed gate with roller assembly.

Welding to attend leakage.

Turning of 8" MS pipe.

Servicing/cleaning of air converted tank & connected pipe.

Replacement/adjustment of chain of clinker grinder.

Closing & opening of discharge gate of BAH.

Fabrication & erection of bend 4" to 8".

Replacement of LP water line valves 1"

Replacement of LP water line valves 2"

Replacement of LP water line valves 3"

Replacement of MS/CI pipe: Size 4"

Replacement of LP water line valves 6"

Replacement of LP water line valves 8"

Replacement of wornout/damaged pipe 1"

Replacement of wornout/damaged pipe 2"

Replacement of wornout/damaged pipe 3"

Removal of chocking of economizer hopper sluicing tank and all connected pipe line.

Patching of erodd plate by MS plate of 5 mm to 12 mm.

Replacement/servicing of nozzle of economizer sluicing tank.

Complete cleaning of economizer hoppers during Shut down of Unit.

Replacement/servicing of pneumatic Power Cylinder 8" dezurik valve of Bottom Ash discharge pipe line.

Servicing/Overhouling/replacement of 8" dezuril valve.

Replacement/servicing of air check valve.

Replacement/repairing of TRESG valve 10"

Replacement/repairing of TRESG valve 8"

Replacement/servicing of Butterfly valve: Size 2 1/2".

Replacement/servicing of Butterfly valve: Size 6".

Replacement/servicing of Butterfly valve: Size 8".

Replacement/servicing of Butterfly valve: Size 10".

Replacement/servicing of different size valve: size 12"

Replacement of Disc/Seat 1 & 2 row of ESP Hopper0

Replacement of Disc/Seat 3 & 6 row & APH Hopper.

Replacement of Fluidizing blower "V" - belt.

Servicing of Fluidizing Blower.

Alignment of fluidzing blower with motor.

Replacement of connector/gasket 8"/10".

Replacement of bend 8"

Replacement of bend 10"

Replacement of lateral 8"/10"

Patch work by welding in different area of fly ash system to one squire fit.

Cutting and replacement spool pipe pieces of different size 6'/8'/10'.

Servicing/cleaning of air washer nozzle.

Servicing/cleaning of hydro mix. nozzle.

Removal of chocking vacuum line.

Removal of choking ACT & its pipe line.

Strengthening of ACT cylindrical as well as conical portion instated at 24 m height of vacuum tower.

Replacement of tail pipe (adopter).

Replacement of air washer nozzle.

Fabrication & erection 12” MS lateral portion in discharge side of ACT tank at about 20 m height of vacuum tower.

Replacement/Servicing of vacuum breker system.

Replacement of wear plate of ACT.

INDIA ENGINEERING WORKS

M/S DURGA ENGINEERING WORKS