Mechanical jobs associated with Catalyst sieving, testing of boiler system and Replacement of Damaged Converter Internals and their supports in SA Plant during ATA-2023, FACT-CD.

Mechanical jobs associated with Catalyst sieving, testing of boiler system and Replacement of Damaged Converter Internals and their supports in SA Plant during ATA-2023, FACT-CD.

Cutting and removal of sampling line and Manhole covers of converter beds. Work involves: Cut and remove the sampling lines, cutting and removal of manhole covers of catalyst beds to facilitate catalyst discharging, inspection, catalyst re-charging etc. Fix back and full weld all covers, fix the sampling lines after catalyst charging. Any repair work on the manhole area shall also be done.

Arrangement of Catalyst sieving Machines and catalyst discharging pipes. Arranging catalyst Sieving Machine along with dischage chute / pipe to converter beds (to all 4 beds of converter if required), transportation, repair, modification if any of 2 numbers of sieving machines including system overhauling and replacement sieve mesh with new (two types) as per instruction to facilitate smooth discharging of catalyst. Dismantle and transport back the Sieving machine, piping arrangements to the earmarked area after the work and site cleaning.

Replacement with new / repair of Catalyst Support Grid of Converter. Collection of new catalyst Grid from stores, Replacement / repair of Catalyst supporting grid, levelling of grids and and locking with steel wire as per instructions. Transport the damaged grids to area earmarked.

Replacement of Converter Grid Supporting Beam. Cutting and removal and lowering of existing damaged converter grid supporting beam, repair of beam supporting area, collection of new beam from stores, lifting and erection of new beam, properly supporting and fixing the same as per the instruction of Engineer-in-Charge.Transport the damaged beam as per instructions.

Replacement of damaged supports of Converter internals. Collection of material from store fabricate, replace and full weld the damaged Converter internal damaged grid supports, peripheral ring, partition plates, partition plate supports, central duct, and other internal supports after arranging necessary scaffolding and proper supports. Cut and remove the existing damaged portions as per instruction of the engineer in charge. Clear the site off scrap and transport the scrap to scrap yard.

Replacement/repair of damaged partition plates Collection of materials from store fabricate ,replace and full weld the damaged Converter partition plates with 304 plates SS after arranging necessary scaffolding and proper supports. Cut & remove the existing damaged portions as per instruction of the engineer in charge. Clear the site off scrap and transport the scrap to scrap yard.

Testing of Boiler Systems: After getting clearence open the steam drum for cleaning and box up with proper gaskets after cleaning / inspection.Transport hydro testing pump from the storage location, blind the required numbers of flanges, remove the required number of valves from the system, line up the pump with the boiler system, provide man power assistance for testing the system, remove the blinds after testing, refix the valves with proper gaskets / bolts and nuts, box up the flanges, dismantle and transport the testing pump to the storage location.

HASSAN MM