烟煤耗氧速率影响因素的灰色关联分析

Grey Relational Analysis of Influence Factors of Oxygen Consumption Rate of Bituminous Coal

利用灰色关联分析法解决了具有灰色特征的烟煤耗氧速率影响因素的分析问题。通过计算温度、粒度、氧浓度与耗氧速率之间的灰色关联度,明确了各个因素对烟煤耗氧速率的影响大小,结果表明:低温阶段温度、粒度和氧浓度都对耗氧速率做出较大贡献,而在高温阶段,受反应动力控制,氧浓度对耗氧速率影响最大,温度、粒度次之。

In this paper, the factors of the rate of oxygen consumption of bituminous coal, which was characterized by grey , was solved by the grey relational analysis（GRA）. The relational degrees of the rate and the temperature of bituminous coal,the particulate size of coal sample ,oxygen concentration were figured out. The influencing sequence is that the temperature and the oxygen concentration make larger contributions to the rate in low - temperature stage and the oxygen concentration influences the rate of oxygen consumption more greatly than temperature and particulate size, which is controlled by the chemical kinetics in high - temperature.