Tamil Nadu Generation And Distribution Corporation Limited-TANGEDCO has published Complete Dismantling Of Dust Extraction, Impeller Casing, 4 Nos. Worn Out Wet Collecting Hoppers, Bed Frame Structures Of Dust Extraction System-3B Repairing And Commissioning Work. Submission Date for this Tender is 28-01-2021. Dismantling Work Tenders in TTPS Tamil Nadu. Bidders can get complete Tender details and download the document.
| Name of Work: < TTPS-TTPS- ECHP-II- Complete dismantling of Dust Extraction, impeller casing, 4 Nos. Worn out wet collecting hoppers, bed frame structures of Dust Extraction System-3B repairing and commissioning work at PCH-II> | |||||
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| Sl. No. | Item Description | Item Code / Make | Quantity | Units | |
| 1 | 1 | TTPS- ECHP-II- Complete dismantling of Dust Extraction, impeller casing, 4 Nos. Worn out wet collecting hoppers, bed frame structures of Dust Extraction System-3B repairing and commissioning work at PCH-II | |||
| 2 | 1.01 | Charges for complete overhauling the upper section coal wet collector chamber – 2 no's (Size 5.7m x 2.06m x 2.35m) – Inspection of the scrubber units and the baffle plates – patch up welding in the eroded portion and grinding for its smooth surface – Fabrication of new inspection doors – 10 no's (size 450mm x 550mm x 6 mm thick) fixing with new hinges, eye bolts and rubber sealing – including cost of material, consumables, hire charges for temporary plat form materials and T&P’s…Complete. | Item 1 | 1 | Operation |
| 3 | 1.02 | Charges for overhauling the lower section of wet collector – 4 no's (hopper height – 2.65 m). Dismantling the completely worn out and corroded lower section of wet collecting hopper – 4 no's for proper scaffolding arrangements and Fabrication of new of wet collecting hoppers. Dismantling the completely worn-out and jammed condition 200 NB size sludge out let valve from the hopper and replacing the existing valve by a new one in the hopper with new gasket & bolt with nuts- Including cost of materials, consumables and hire charges for T & P’s etc complete. | Item 2 | 1 | Operation |
| 4 | 1.03 | Charges for one operation consist of complete overhauling the HCMP 3-090 Type 44000 M3/ Hr. capacity centrifugal fan and replacing the base frame structure by the newly fabricated one of size(3.99 x 1.90m) and allied works consists of Dismantling the flexible connections at suction & discharge of the fan – loosening the fixing bolt and taken out the fan assembly – loosening the foundation nuts and removing the worn out base frame from the foundation – fabrication of new base frame (3.99M x 1.90M size) as per dimension - thread cleaning the foundation bolts using suitable dia – positioning new base frame on the foundation, levelling, aligning and tightening with new nuts – lifting and positioning the fan assembly on the base frame, aligning & tightening with new bolts & nuts lifting and positioning the fan assembly on the base frame, aligning & tightening with new bolts & nuts - Dismantling the suction cone – 1 no from the fan assembly – cleaning the housing, fan blades and inspection – patch up welding the eroded portion in the suction cone, fan housing and grinding to smooth surface – refixing the suction cone with new bolt, nut & gasket –Overhauling the fan belt pulley using puller’s - Dismantling the fan belt pulley using pullers - dismantling the top cover of Plummer blocks and complete overhauling of bearings and grease packing and reassembling Plummer blocks and proper aligning the fan pulley, cleaning and reassembling the belt pulley – providing new ‘V’ belts (SPC – 6700 – 7 nos) - Reconditioning of belt guard by strengthening patch up welding at operating platform, approaching ladder etc - including cost of consumables and hire charges for T & P’s etc complete. | Item 3 | 1 | Operation |
| 5 | 1.04 | Charges for one operation complete cleaning and painting of 428 m2 area outer surface of the wet collector with bottom hopper, required area of surface duct support structural, fan with base frame and operating plat form with supports with one coat of red oxide primer and two coat of synthetic enamel paint and providing for scaffolding and temporary platform and additional arrangements for painting works at higher elevation – including cost of paints etc complete. | Item 4 | 1 | Operation |
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