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| 1 | REFRACTORY REPAIR WORKS DURING IN PLANT |
| 2 | REFORMER - PLANT 76 & 205 |
| 3 | Dismantling and removal of walls of Flue gas tunnels. The job includes removal of the bottom Insulating Fire bricks, lintels and the top High duty Fire bricks (as applicable). The removal of cover slabs, vane tiles and lintels shall be paid separately. Side elevation area of lintels and cover slabs shall be deducted from the measurement .The job is inclusive of collecting, shifting & stacking of the debris at designated location upto a lead of 100M as directed by Engineer-In-Charge. |
| 4 | Removal of cover slabs ,convex/concave vane tiles and lintels of tunnelsections(as applicable). The job is inclusive of segregating the slabs/ tiles to damaged and salvageable ones, collecting, shifting & stacking of the same at designated location upto a lead of 100M as directed by Engineer-In-Charge. |
| 5 | For Tunnel cover slabs and vane tiles upto a length of 1200mm & Thickness upto 150mm. |
| 6 | For Lintels of size 985x230x200 mm |
| 7 | Dismantling and removal of Insulating Fire brick lining over Radiant section walls. The job includes removal of the Insulating Fire bricks upto 178 mm thick, Insulating board back-up layer upto 125 mm thick and cleaning the metal plate surface forpainting. The job is inclusive of collecting, shifting & stacking of the debris at designated location upto a lead of 100M as directed by Engineer-In-Charge. |
| 8 | Dismantling and removal of Insulating Castable lining upto 176 mm thick, Insulating board back-up layer upto 175 mm thick and cleaning the metal plate surface for painting at Tunnel section end lintels/roof and transition section, manway/access doors. The job is inclusive of collecting, shifting & stacking of the debris at designated location upto a lead of 100M as directed by Engineer-In-Charge. |
| 9 | Dismantling and removal of Insulating Fire brick lining (or) Castable lining, backup board lining around Columns at the end of tunnel sections and columns at transition section . The job includes removal of the Insulating Fire bricks upto 178 mm thick (or) Castable lining upto 125 mm thick, Insulating board back-up layer upto 125 mm thick and cleaningthe metal plate surface for painting. The job is inclusive of collecting, shifting & stacking of the debris at designated location upto a lead of 100M as directed by Engineer-In-Charge. |
| 10 | Dismantling and removal of floor around Columns at the end of tunnelsections and columns at transition section - Dense Castable 75 mm thick over Insulating Castable 100mm thick and Insulating board back-up layer 175 mm thick. The job is inclusive of collecting, shifting & stacking of the debris at designated location upto a lead of 100M as directed by Engineer-In-Charge. |
| 11 | Construction of walls of Flue gas tunnels with High Duty Fire Bricks as per drawing. Placing of cover slabs,vanetiles and lintels shall be paid separately. Side elevation area of lintels and cover slabs shall be deducted from the measurement The job includes shifting of all materials from CPCL Warehouse to site for all lift and lead and returning the balance material if any back to CPCL Stores. (The 2 walls of a particular tunnel shall be measured separately for payment). |
| 12 | Placing of cover slabs ,convex/concave vane tiles and lintels of tunnelsections. The job includes shifting of all materials from CPCL Warehouseto site for all lift and lead and returning the balance material if anyback to CPCL Stores. |
| 13 | For cover slabs and vane tiles of Tunnels of length upto 1200mm and thickness upto 150mm respectively. |
| 14 | For Lintels of size 985x230x200 mm |
| 15 | Construction of Insulating Fire brick lining over Radiant section walls. The job includes removal of the Insulating Fire bricksupto 178 mmthick, Insulating board back-up layer upto 125 mm thick, supply & application Painting ofmetal surface with Epiplus 556 or equivalent and welding of SS 310 Brickhooks. The job also includes shifting of all materials from CPCL Warehouse to site for all lift and lead and returning the balance material if any back to CPCL Stores. |
| 16 | Castable lining at Tunnel section end lintels/roof and at Transition section end L-type roof near columns with Insulating Castable upto 200 mm thick over Insulating board back-up layer upto 175 mm thick. The job includes supply & application of Painting of metal surface with Epiplus 556 or equivalent and welding of SS 310 Brick hooks. The job also includes shifting of allmaterials from CPCL Warehouse to site for all lift and lead and returning the balance material if any back to CPCL Stores. |
| 17 | Construction of Insulating Fire brick lining around Columns at the end of tunnel sections and columns at transition section -Insulating Fire bricks upto 178 mm thick over Insulating board back-uplayer upto 125 mm thick. The job includes supply & application Painting of metal surface with Epiplus 556 or equivalent and welding of SS 310 Brick hooks. The job also includes shifting of all materials from CPCL Warehouse to site for all lift and lead andreturning the balance material if any back to CPCL Stores (Finished surface area of the columns shall be considered for payment). |
| 18 | Castable replacement at floor around Columns at the end of tunnelsections and columns at transition section - Dense Castable upto 75 mm thick over Insulating castable upto 100mm thickand Insulating board back-up layer 175 mm thick including painting of metal surface with Epiplus 556 or equivalent and welding of SS Anchors. The job includes shifting of all materials from CPCL Warehouse to site for all lift and lead and returning the balance material if any back to CPCLStores. |
| 19 | Refractory repairs at convection section/ Flue gas duct/ Stack downstream of transitionduct- with Insulating Castable upto 125 mm thick over Insulating board back-up layer upto 175 mm thick. The job includessupply & application Painting of metal surface with Epiplus 556 or equivalent and welding of SS 310 Brick hooks. The job also includes shifting ofall materials from CPCL Warehouse to site for all lift and lead andreturning the balance material if any back to CPCL Stores. |
| 20 | Minor refractory repairs in man ways, peep holes, Muffle blocks, manway, convection sections using castable |
| 21 | Filling of gaps/ Cracks in Refractory lining with ceramic fibre (CF), Thermo couple CF wrapping & Securing with SS Binding wire as per EIC / Inspection directions |
| 22 | Fixing of available ceramic fibre modules in wall, arch roof of Furnace/ Reformer including marking and welding of studs using stud welding gun or manually with the help of electrodes (sliding type / Yoke type) along with fixing of back up ceramic fibre blanket/ board 0.1 mm SS foil fixing and supply and application of 2 coats of anticorrosive paint Epiplus- 556 or equivalent as per EIC / Inspection directions. |
| 23 | PG BOILER / COLD COLLECTOR |
| 24 | Dual layer Refractory lining replacement on the shell near tubesheet, manway neck portion, manifold area etc. Dismantling of the old lining, welding of anchors/studs, casting by manual means including shuttering or by gunnitting at overhead portions as per drawings and Inspection recommendations for Hot face layer upto 108 mm thick (including 2% by wt. 0.4mm dia SS 310 needle reinforcement) and insulating layer upto 100 mm thick |
| 25 | Filing of gaps with Safil blanket wherever required |
| 26 | FURNACE - Plant 77 |
| 27 | \"Refractory Repair Jobs Includes Dismantling of the existing lining as per EIC / Inspection, of collecting, shifting & stacking of the debris at designated location upto a lead of 100M as directed by Engineer-In-Charge, Surface preparation before application, welding of anchors / studs, Re-lining of the same as per the Inspection recommendations and obtaining of clearance for the samefrom Inspection stagewise/after completion of the work as applicable. Scope also includes shifting of necessary materials from CPCL stores and stacking the same near the work spot using temporary shed, return of unused material to stores in good condition. Scope also includes supplying of all types of tools & tackles, lifting arrangements like chain pulley blocks, machineries, all consumables and labor to complete the job in all respects. Cost excludes scaffolding erection and scaffolding / working platform.\" |
| 28 | \"Replacement of Radiant Section Floor refractory: Insulating Castable refractory upto 175 mm thickness (single / multiple layers) and Fire bricks of thickness 65 / 75 mm.\" |
| 29 | \"Replacement / Re-alignment of Muffle Blocks: Removal of the existing muffle block segments, salvaging of the usable segments, re-aligning using new / salvaged segments as per the drawing specifications \" |
| 30 | \"Replacement of peep hole area : Replacement of peep hole area with vacuum formed Ceramic fibre boards / by brick lining behind tubes as per EIC / Inspection.\" |
| 31 | \"Replacement of Castable Refractory: Replacement of Insulating castable in Convection /Corbels / end tube sheet / header boxes/ stack/ duct/ breech section (in position) for thickness upto 150 mm including welding of anchors if required\" |
| 32 | \"Replacement of Castable Refractory in Header box covers: Replacement of Insulating castable in convection header boxes including replacement of CS chain link by welding if required (panels may be at platform level / ground level) for thickness upto 150 mm\" |
| 33 | \"Replacement of the Ceramic Fibre blanket lining: Ceramic fibre of thickness upto 150 mm thickincluding welding of studs / anchors asrequired in Burner housing / wind boxes /radiant shell / arch roof/ plenum chamber and securing with SS binding wire as applicable.\" |
| 34 | Removal and refixing ofold/new quadrant or semi-circular blocks and ceramic fibre rope as per drawings for closing manways upto 700 mm dia and width upto 420 mm. |
| 35 | Fixing of Telescopic seals for reformer tube inlet pipes as per the installation procedure |
| 36 | Charges for mobilisation & demobilisation of manpower, tools & tackles for Shutdown |
