Numerical analysis and optimization of multiple-point heat supply and its influence on coking processes
LIN Wei1， FENG Yan-hui1,2， JIN Ke1， ZHANG Xin-xin1,2，WANG Ming-deng3， YANG Jun-feng3
（1. School of Mechanical Engineering， University of Science and Technology Beijing， Beijing 100083， China 2. Beijing Key Laboratory of Energy Saving and Emission Reduction for Metallurgical Industry， University of Science and Technology Beijing， Beijing 100083， China 3. ACRE Coking and Refractory Engineering Consulting Corporation， Anshan 114001， Liaoning， China）
Abstract：According to the structure and process characteristics of large-capacity coke oven with multiple-point heat supply，a 3-D mathematical model was established to describe the flow，combustion and heat transfer process in coupled coking and combustion chambers. The numerical solution was obtained. The impacts of multiple-point heat supply on the coking process were analyzed and compared with the conventional coke oven. The comparison showed that the multiple-point heat supply plays a significant role in the coking process. The mass percent of moisture，the bulk density，the initial temperature，the number of flue air points and the circulating ratio of flue gas were analyzed by the orthogonal experiment. It indicates that the staged combustion technology can effectively improve gas temperature uniformity along the vertical direction，and the production as well as the quality of the coke is improved. Meanwhile the volume percent of NO of exhaust is reduced. The results can be applied to large-scale coke oven design，process optimization，and clean production in coke oven industry.
林 蔚， 冯妍卉， 金 珂， 张欣欣， 王明登， 杨俊峰. 多点供热对焦化过程影响的数值分析与优化[J]. 钢铁, 2015, 50(3): 25-32.
LIN Wei， FENG Yan-hui，， JIN Ke， ZHANG Xin-xin，，WANG Ming-deng， YANG Jun-feng. Numerical analysis and optimization of multiple-point heat supply and its influence on coking processes. Iron and Steel, 2015, 50(3): 25-32.
2015, Vol. 50 
