Replacement Of Damaged Bottom Plate And Patch Work In Digestion Vessel 02 In Pa Plant , Fact Cd . , AMBALAMEDU-Kerala

Replacement Of Damaged Bottom Plate And Patch Work In Digestion Vessel 02 In Pa Plant , Fact Cd . , Replacement Of Damaged Bottom Plate And Patch Work In Digestion Vessel 02 In Pa Plant , Fact Cd . , Replacement Of Damaged Bottom Plate In Digestion Vessel 02 In Pap . Work Involves: Collect Required Tools And Tackles For The Work . Make Required Site Arrangement . The Existing 12 Mm Thick Ms Bottom Plates Shall Be Cut Removed Completely , As Required At Site To Meet With The Replacement Procedure . Temporary Re- Inforcement Members Shall Be Provided To The Bottom Plate And Shell Area Of The Tank . The Shell Shall Be Cut At A Suitable Distance From The Top Of The Shell-To-Bottom Plate Fillet Weld Such That The Launder Openings At The Top Are Not Misaligned With Other Vessels . The Launder Openings/Nozzles Shall Be Reworked If Required To Maintain The Alignment By The Contractor . The Vertical Shell Bottom Edges Shall Be Ground Properly With Suitable Bevel / Double Vee , Where The Welding Is To Be Done . New Bottom Plate Shall Be Fabricated Out Of 12Mm Thick Ms Plate . The Plate Shall Be Marked And Cut As Per Relevant Drawing To Suit With The Site Condition . Inside Edge Of The New Cut Plate Shall Be Ground Properly With Suitable Bevel / Single Vee , Where The Welding Is To Be Done . The Required Backing Strip Plate Shall Be Prepared From 6Mm Plate . The Backing Strip Plate As Required Shall Be Full Welded To The New 12Mm Thick Cut Plate . All Bottom Plate Connection Joint Welds Shall Be Full Welded . The New 12Mm Thick Cut Plate With The Backing Strip Plate Shall Be Inserted / Positioned Properly With Correct Root Gap . The Vertical Shell Bottom Edges Shall Be Full Welded [Outside And Inside] , To The Newly Replaced Bottom Plate With Required Fillet . Shell-To Bottom Plate Weld Shall Be Full-Penetration Fillet Weld . The Newly Welded All Areas At Inside Of The Storage Tank Shall Be Ground Flush To Facilitate Rubber Lining . After Replacement Of Bottom Plate , Temporary Re- Inforcement Members / Plates Shall Be Removed . Damaged Bottom Plates And Other Scrap Shall Be Transported To Scrap Yard . , Patchwork On Digestion Vessel 02 Shell: Work Involves: Collect Required Materials From Store . Make Site Arrangements For The Work Including Scaffolding . All The Hv 09 Encasings Shall Be Cut And Removed Damaged/Weak Areas Of Dv 02 Shell Shall Be Cut And Removed . Necessary Temporary Supports Shall Be Provided . Patch Work Shall Be Done Using 10Mm Thick Ms Plate . Plates Shall Be Cut , Marked And Rolled To Suit The Shell Dia . Fit Up Shall Be Done Suitably . Proper Full Welding At Inside And Out Side Of The Joints And Grinding Of The Welded Area Shall Be Done As Per The Instruction Of Officer In Charge . Dp Test Shall Be Done On Weld Joint And Defects If Any To Be Rectified . Manholes/Drain Nozzles Etc . Shall Be Maintained As Per Original Condition . Existing Manhole Flanges And Nozzles Shall Be Used After Necessary Repair . Weak Areas Near The Launder Nozzles Shall Be Replaced With New Plates . The Nozzles Shall Be Cut And Removed For Patch Work . These Nozzles Shall Be Reused After Repair . All Welding Joints Inside And Outside The Shell Shall Be Properly Ground To Facilitate Rubber Lining . , Dismantling And Refixing Of Existing Launder Between Digestion Vessel 01 And 03: Make Required Site Arrangements For Work . The Interconnection Launder ( Moc: Ss 904L ) Between Dv 01 & Dv 03 Shall Be Dismantled Suitably And Removed From Position To Enable Patchwork . The Launder Shall Be Cut And Removed In Segments If Required As Per Site Instruction . The Cutting Shall Be Plasma Cutting Only . Necessary Repairs Shall Be On The Launder And Its Flanges As Per Site Requirement . Once The Patchwork Is Complete The Launder Shall Be Erected Back In Position . The Launder If Cut , Shall Be Erected With Proper Fit Up And Full Welding Of Joints To Be Done . Pad Plates On The Welding Joints Shall Be Provided . Any Rework On The Launder To Fit Through The Connecting Flanges Of Dv 01 And 03 Shall Be Done By The Contractor . Additional Structural Supports If Required Shall Be Provided . All The Flange Connection Joints Shall Be Properly Tightened With Gaskets To Ensure Leak Proof Joints . 1 No . Quantity Means Dismantling And Refixing Both Included . , Dismantle , Repair/Modify/Existing Erect Interconnection Launders Between Digestion Vessels 01 And 02 And Digestion Vessels 02 And 03: Collect The Required Materials For The Work . The Launders Shall Be Dismantled From The Digestion Vessels After Site Arrangements . The Dismantled Launders Shall Be Repaired And Modifies To Suit The New Flange Orientation Between Dv 01&02 And Dv 02&03 . Patch Works , Repairs On The Launder And Its Flanges Shall Be Done As Per Site Instructions . The Modification Of The Launders Shall Be In Such A Manner That These Shall Be Erected Without Any Strain . The Launders After Rubber / Brick Lining Shall Be Provided With Hv 9 Encasing Inside With 300 Mm Extension Towards Downstream Side On Dv 02 And Dv 03 . The Launders Shall Be Erected After Getting Clearance And Serviced Without Any Leak . Dismantling Of Dv01-Dv03 Interconnection Launder Shall Be In This Scope Of Work . The Dismantled Launder Shall Be Transported And Stacked In Earmarked Area As Per Site Instructions .

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INR 12000.0 /-

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