Name of Work: TTPS – Mech.II – BM - Unit IV - Overhauling of wind box, SADC & AC / DC scanner fans of Unit IV Boiler during overhaul 2021-2022
Sl.No.
Item Description
Item Code / Make
Quantity
Units
1
1
Renewal and repairing of damaged Insulation and Refixing Skin casing inclusive of necessary Scaffolding arrangements.
item1
110
Mtr2
2
2
Removing the eroded portions in wind box and welding with new plates inclusive of transportation, lead and lift, scaffolding arrangements.
item2
2
Sides
3
3
Cutting removal of worn out air dampers fixed & moving blades, shaft, preparing air compartment plates, shaft and damper blades, welding shaft with moving blade and making proper alignment and checking for free operation.
item3
1
Unit
4
4
Dismantling of A.C/ D.C scanner air fan end cover plate, motor, impeller etc overhaul works and assembling the same fan and normalizing.
item4
2
No.
5
5
Complete overhauling of LT Motor 1.2 KW to 9.3 KW
item5
1
No.
6
6
Overhauling of LRSB valve assembly, alignment of LRSB Lance tube & Servicing of LRSB travelling carriage assy., rotary & traverse chains etc.
item6
9
No.
7
7
Overhauling of emergency air damper of scanner air fan system by dismantling, cleaning, inspecting of power cylinder operation.
item7
2
No.
8
8
Dismantling and inspection of delivery side flap gate of scanner air fan for free operation and rectification defects if any and reassembling the same with new gasket.
item8
4
No.
9
9
Charges for Leading, lifting and arranging platform and scaffolding where required in the boiler and dismantling after completion of work.
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