| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.18 ( May 1988 ) ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Decrease in Coke Oven Heat Consumption by Means of Gas Flow Analysis Tsuguhiko Nakagawa, Masatoshi Ichimiya, Shizuki Kasaoka, Kazumasa Ariyoshi |
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Synopsis : For the purpose of decreasing heat consumption of coke ovens, uniform carbonization in ovens and improvement of thermal efficiency in combustion chambers have been intended by controlling gas flow in flues and evaluating the state of carbonization. The experimental results show; (1) control on the flue side brick opening area and elevation of top pressure are effective in uniform carbonization in the horizontal direction, and (2) elevation of combustion gas temperature is also found effective in improvement of heat efficiency. By application of the results, waste gas heat has been reduced due to improved thermal efficiency, and discharged coke temperature due to uniform temperature distribution. Through both the effects, heat consumption was decreased by about 40kcal/kg-coal. The result of gas distribution analysis in a combustion chamber shows more combustion gas flows in end flues than in any other flue. |
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