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| 1 | Dismantling and lining of insulating layers in Calciners using Insulating Castables as required in various shapes & thickness as indicated in the drawing or as instructed by EIC (whereever sufficient data not available in the drawing), using required tool |
| 2 | DIsmantling of Insulating layers and lining of insulating layers in Calciners using calcium silicate blocks (Hysil) of various shapes & thickness,Insulating Bricks of different shapes & sizes, Mill Board of various thickness to obtain the shape & size a |
| 3 | Dismantling and lining of Refractory layers in Calciners using Dense Castables as required in various zones in required thickness as indicated in the drawing or as instructed by EIC (whereever sufficient data not available in the drawing), using required |
| 4 | Dismantling and Refractory Lining of Domes, Arch, Roofsusing suitable Refractory Materialsin various zones as indicated in the drawing or as instructed by EIC (whereever sufficient data is not available in the drawing), using required tools & machinar |
| 5 | Fixing of Precission Brick in Calciners in it\"s position alligned with the Discharge lance,making temporary arrangements like scaffolding inside the narrow duct, for it\"s alinement perfectly with respect to the lance and strictly in accordance to the sp |
| 6 | Filling of Expansion Joints in Calciners using Ceramic Blenkets (of various thickness), Wools, Asbestos Rope after cleaning for trapped alumina, old blankets, wools, Asbestos Rope using required tools, labour etc.at all height. Actual measurement to be ta |
| 7 | Pointing of cracks, construction joints, in all old refractory lining in Calciners (Brick and Castable) where no relining work planned, but thick crack / multiple cracks / prominent construction joints with alimina penetration observed. This is to be done |
| 8 | Fixing of Stainless Steel Anchors by welding (seam welding both side)inside Steel Shell of Calciners, Boilers using suitable electrode equivalent to Nalco Spec. No. 3.1.1, at all heights usingmachine, tools & tackle |
| 9 | Fixing of Hex-Mesh of the the required shape and size after taking out the existing hex-mesh (if any by necessary cutting and welding) to Steel Shell using anchors, studs by welding in any part of Calciners, Boilers as required. Electrodes equivalent to N |
| 10 | Cutting of MS Cell (upto 12mm thick), for Relining work like casting, making pouring pockets, whereever required at all heights and welding the same using suitable electode with necessary machines, labour, tools & tackles etc. complete. |
| 11 | Transportation of materials, machinaries, burners, equipments, tools and tackles etc. from contractors registered office / site (anywhere in india) to Damanjodifor mobilisation of work and taking back the materials after completion of work in 9 ton truck. Complete. |
| 12 | Erection of steel pipe scaffolding work in various zones inside Calciner, (Outside wherever necessary) for inspection of refractory lining and maintenance works using Steel pipes and clamps, Steel Gratings (wherever required) and Structural Steels by weld |
| 13 | Providing & fixing of Burners(on returnable basis) at the different zones of Calciners for DRY OUT OPERATION of Refractory Lining as per the schedule decided during every overhauling. All equipments and accessories required for the Dry-Out Operation including mobilising and d |
| 14 | Lining of Dense Refractory layers using Dense Bricks of any shapes and sizes as required in various zones in various thickness as indicated in the drawing or as instructed by EIC (whereever sufficient data not available in the drawing), using required too |
| 15 | Lining of Dense castable layers by gunning method in various zones of calciners as indicated in the drawing or as instructed by EIC (whereever sufficient data not available in the drawing) using required tools & machinaries and labour etc. at all heights. |
| 16 | Lining of insulating castable layers by gunning method in various zones of calciners as indicated in the drawing or as instructed by EIC (whereever sufficient data not available in the drawing) using required tools & machinaries and labour etc. at all heights. |
| 17 | Dismantling and lining of Refractory layers in Boilers using Dense Castables & Refractory Bricks as required in various zones in required thickness as indicated in the drawing or as instructed by EIC (whereever sufficient data not available in the drawing), using required tools & machinaries and labour etc.at all height. |
| 18 | Segregating and stacking Refractory Materials (Including Anchors) in Refractory Godown (1, 2 & Refractory Materials at SGA Plant)….. |
| 19 | Supplying a diesel tanker without diesel on rental basis for 15 days to transport diesel from diesel yard to the calciner, required for the DRY OUT OPERATION |
| 20 | Supplying acid / alkali proof tile of size 230x115x38 mm of approved quality including one coat of primer, 10 to 12 mm thick mastic of (115 / 15 Grade) laying with silicate based acid proof cement and filling the joints with epoxy / frrane / polyester based acid proof cement all complete etc. as directed by EIC |
| 21 | Dismantling of acid / alkali proof tile lining of any size in trenches / floors / walls etc. including removal of tiles / debris and stacking the tiles for reuse without damaging the tiles to the extent possible. All ancilliary works like tools, tackles, labour & safety etc. is the responsibility of the contractor. |
| 22 | P&L acid / alkali resistant bitumistic compound in layers of 10 to 12 mm thick over a coat of bitumastic primer on walls / floors / trenches of any depth / height after chipping and removing the old bitumastic and thorough cleaning of surface wherever required to build up a bitumastic layer of 12 mm thick including making a finished and levelled surface to receive the acid / alkali proof tile lining. The rate includes the cost of all materials, labour, tools, & tackles required for the work. The finished surface shall be measured for payment. |
| 23 | Salvaging good / reusable acid / alkali tiles of any size available from dismantlled acid / alkali proof tile lining work and processing for deacidisation with lime water etc. including relaying with bitumastic and pointing etc. in the trenches / floors / walls with suitable acid /alkali proof mortar (potassium silicate based) and epoxy based pointing as per specification with all tools and tackles, labour etc. all complete as per direction of EIC. |
| 24 | Providing modified phenolic resin based cerophen materials on old / alkali proof brick / tile lining after racking out of old joints upto a depth of 15 mm with suitable tools and cleaning the same for application of cerophens point materials as per the specification and direction of EIC. |
| 25 | External painting with high temperature aluminium paint of 400oC, two or more coat, on different calciner parts like VD1, VD2, MC, RC, Furnace, seal pot, mixing pot, cooler cyclone, FBC and associated ducts using necessary machines, labour, tools and tackle etc. for calciner A,B,C&D complying with IS13183 |
