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通过COREX喷煤整体和区域模型计算分析,研究了喷煤对块煤用量、理论燃烧温度、风口煤气量等重要参数的影响。计算结果表明:随着喷煤量的增加,风口煤气量增大,块煤用量和理论燃烧温度均降低。最后,建立了二维COREX熔化气化炉热态模型,利用石蜡模拟矿石、玉米粒子模拟焦炭。在热态物理模拟试验中,考察了矿/(块煤+焦)体积比、风温和风量等操作参数对COREX熔化气化炉炉况的影响。
Through the calculation and analysis of the whole and regional model of COREX coal injection, the influence of coal injection on the important parameters of lump coal, theoretical combustion temperature and tuyere gas volume was studied. The calculation results show that with the increase of coal injection volume, the amount of tuyere gas increases, the amount of lump coal and the theoretical combustion temperature decrease. Finally, a two-dimensional COREX melting gasifier thermal model was established, using paraffin simulation of ores and corn particles to simulate coke. In the thermal physical simulation test, the influence of operation parameters such as the volume ratio of ore / (lump coal + coke), air temperature and air volume on the furnace condition of COREX melting gasifier was investigated.