燃烧效果最佳的混煤喷吹配比计算方法  

Computational methods of coal blending for the best combustion in mixed coal injection

作　　者：段旭琴[1] 蒙格泰[1] 金龙哲[1] 段建[1] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083

出　　处：《北京科技大学学报》2012年第11期1319-1324,共6页Journal of University of Science and Technology Beijing

摘　　要：在归纳和比较常用高炉喷吹配煤方法的基础上,以计算法配煤的思想为指导,提出了以实现最佳燃烧效果为目标的混煤模型.通过曲线拟合得到混煤着火点随高挥发分煤种配比增大而减小的关系曲线,混煤着火点下降速率减小到某一较小值时的混煤比例即为该煤种组合燃烧效果最佳的比例.应用该方法对四组不同煤种组合混煤进行配比优化,经静态燃烧性实验证明,该计算法所得结果准确可靠,有一定实用性.In compliance with the computational principle of coal blending,a coal blending model for the best combustion was put forward based on summing up and comparing some common coal blending methods.A curve to describe the relation between the ignition point of mixed coal and the proportion of high-volatile coal was obtained by curve-fitting.It is found that the proportion of high-volatile coal at which the descent rate of the ignition point of mixed coal reaches to a certain tiny value is considered as the optimum proportion.This method was used to optimize the proportion of high-volatile coal in four different groups of mixed coal and it is proved by static burning experiment that the computed results are accurate,reliable and practical.

关 键 词：高炉 燃料喷吹 煤燃烧 混煤 计算方法 

分 类 号：TK224.1[动力工程及工程热物理—动力机械及工程]