Tender For Mtps-Ii - Mi Circle - O&Ahs - Operation Assistance & Routine Maintenance Round The Clock Of Fly Ash Evacuation System Of Esp A, B, C & D Passes, Duct Hoppers And Fly Ash, Bottom Ash Conveying System Of D-Pumps Through Out The Day And Preve
Tender Overview
Project Description
Tender for Mtps-Ii - Mi Circle - O&Ahs - Operation Assistance & Routine Maintenance Round The Clock Of Fly Ash Evacuation System Of Esp A, B, C & D Passes, Duct Hoppers And Fly Ash, Bottom Ash Conveying System Of D-Pumps Through Out The Day And Preventive Maintenance Works For The Iacs, Mracs, Transport Air Compressors For A Period Of One Year.
BOQ
| Sl. No. | Item Description |
| 1 | Attending the operation work (3 Shifts) for the ESP hoppers, evacuation pipe lines, Maintenance of complete vacuum circuit to ensure 200 mm of Hg of line vacuum in all the rows of ESP passes & ensuring free and continuous flow of fly ash from ESP Hoppers to fly ash buffer hopper to D-pumps, Operation of Dome valves and gate valves, TAC, Vacuum Pump, MRC, IAC compressors after cooler, drier, receivers and its connected air line and water lines up to D-Pumps & PLC Operation for one operation. |
| 2 | Operation of all the existing screw conveyor and its valves & emergency unloading knife edge gate valves for removing excess ash from the ESP hoppers either to floor area (or) to trucks. |
| 3 | Carrying out Routine Maintenance of all equipments in evacuation system of ESP A, B, C & D passes, & fly ash, bottom ash D-pumps, & its related evacuating air pipelines & devices, mechanical portion of the works as directed by the Engineer-in-charge including hire charges for T&P required and Personal protective equipment, consumables and all labour charges etc., |
| 4 | Opening the manhole of the Bag filter unit in Fly ash Buffer hopper after due isolation, and after sufficient cooling dismantling air purging line, removal of all the Bag filters one by one, bringing the Bag filter outside the housing, cleaning with compressed air, checking of bag filter/cage any damage or in the cage and refitting all the bag filters in position, and closing the man hole Including hire charges T&P required, consumables and all labour charges etc., |
| 5 | Clearing of ash chock in ESP Hoppers/APH hoppers, Evacuation pipe lines. This work involves dismantling of dome valves, spool piece, and poking with pipe for clearing the ash and then reassembling of plate valve and dome valve etc., including T&P’s consumables and labour charges etc., |
| 6 | Removing the 250 NB & 300 NB dome valves from the line, dismantling the valves, Inspection of seal & other parts, reconditioning & replacing of wornout seal & Other parts if necessary, reassembling the valve and fixing with line in proper manner including hire charges for T&P required as per the direction of the Engineer-in-charge |
| 7 | Removing the 100 NB & 150 NB dome valves from the line, dismantling the valves, inspection of seal & other parts, reconditioning & replacing of worn-out seal & other parts if necessary, reassembling the valve and fixing with line in proper manner including hire charges for T&P required as per the direction of the Engineer-in-charge. |
| 8 | Opening the screw conveyor top cover plates, dismantling, cleaning the screw conveyor shaft from the screw conveyor assembly, inspection of plummer block bearings, renewal of worn out parts of gun metal bush, hanger bolt with Top clamp & bottom clamp, bearings, gland ropes etc., finally reassembling to the screw conveyor assembly. (16m long) Please Enable Macros to View BoQ information |
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