The coke oven gas is being cooled finally to 3000 C at the outlet of final gas cooler. This cleans the raw coke oven gas by removing Tar, Ammonia, Hydrogen, Sulphur, Sulphide and Naphthalene. The new CCD has been installed to process coke oven gas generated from the new Coke Oven Battery # 6. of RCC silos for stocking of Coking Coal and for CDI Coal, 6 Nos of RCC silos, each of capacity 2500 Tons. The new Coal Handling Plant can hold 15 days stock of Coking Coal for COB #6 3500 T/day) and CDI Coal of 10 days stock 1500 T/day). of circulating gas before waste heat boiler of circulating gas before cooling chamber Temperature of coke charged in the chamber Technological Parameters/Features of CDCP Apart from ensuring environment friendly operation, the CDCP is also designed to enhance the coke quality. The principle of coke dry quenching is based on cooling of hot coke with inert gas circulating in close loop between the chamber of hot coke and the waste heat Boiler. Some important components of the package are: A coal tower of 4000-ton useful capacity for storing coal, Leak Proof Doors, Water Sealed AP Covers, HPLA (High Pressure Ammonical Liquor Aspiration), Door & Frame cleaner, High Pressure Water Jet door cleaner, Land based Pushing Emission Control (PEC) System and Effluent Disposal and Coke Dry Cooling Plant (CDCP) have been provided for efficient environment management. The Computerized Heating Control System (COHC) has been installed for the battery operation for the process management system to improve reduction in environmental emission, improve coke quality & productivity. The 7 metre tall battery of 67 ovens has been installed to produce run of oven Coke (Dry) of 0.768 MT/Year. The battery is top charged, compound twin flue, under jet, regenerative heating with partial recirculation of waste gases. 4 No of Beds to stack the incoming raw materials.Conveyor line for transportation of Calcining Plant grade limestone and dolomite to consuming units.Transportation of crushed fuel and flux for trimming addition to the new Sinter Unit.Transportation of Flue dust, Mill scale etc.Base mix preparation for the New Sintering Complex.Receiving, unloading, reclaiming and finally transporting of raw materials required for Blast Furnce-5.The augmentation facilities that have been added include: Post expansion, the new raw material requirement of RSP has to go upto about 12 MTPA from the previous requirement of 5 MTPA. It is worth mentioning here that, apart from increasing the volume the other benefits envisaged from this phase of modernisation and expansion are increased economy of scale, enlarged customer base, enhanced quality, reduced cost of production, better market compatibility, improved labour productivity, stricter adherence to environment norms and superior Techno-economics. The Crude Steel making capacity has simultaneously increased from the level of 1.9 MTPA to 4.2 MTPA and production of Saleable Steel is all set to zoom from the level of 1.671 MTPA to 3.99 MTPA. With this the Steel Plant has doubled its capacity and augmented it to the level of 4.5 MTPA (Million Tonne per Annum) of Hot Metal from the previous level of 2 MTPA. Rourkela Steel Plant has completed a massive modernization and expansion programme that is truly historic. Modernisation and Expansion of Rourkela Steel Plant
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