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The General Model of Predicting Pulverized Coal Combustion Ratio in Blast Furnace

机译：高炉预测粉煤燃烧比的一般模型

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Improving pulverized coal combustion ratio is very important for energy conservation and stability of blast furnace.In this paper,the general model of predicting pulverized coal combustion ratio is established.The model can calculate the kinetic parameter during coal combustion process according to the coal industrial analysis.Considering actual pulverized coal injection in blast furnace,this paper studies the influence of coal diameter,coal composition and blast temperature on combustion ratio.The results show that volatile is released almost instantly.The smaller the coal diameter is,the higher the combustion ratio is.As the coal diameter is reduced by 10μm,the burnout time decreases about 24％.The coal composition has influence on coal combustion ratio.Increasing the volatile content is benificial to enhance the combustion ratio.As the blast temperature is increased by 100K,the combustion ratio will increase and the burnout time will decrease about 4％.Comparing with the coal diameter and composition,the blast temperature has less influence on coal combustion ratio.
机译：提高粉煤燃烧比对于高炉节能和稳定性非常重要。本文建立了预测粉煤燃烧比的一般模型。该模型可根据煤工业分析计算煤燃烧过程中的动力学参数。本文研究了实际煤粉注射液，本文研究了煤直径，煤炭组合物和冲压温度对燃烧比的影响。结果表明，挥发性几乎立即释放。煤直径越小，燃烧比越高是。煤直径减少10μm，燃烧时间减少约24％。煤炭组合物对煤燃烧比的影响。挥发性含量正常提高燃烧比。爆炸温度增加100K，燃烧比率会增加，燃尽时间将减少约4％。与煤直径相比和组成，喷砂温度对煤燃烧比的影响较小。

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