基于偏序集的硫化矿石自燃倾向性评价  

Evaluation of Spontaneous Combustion Tendency of Sulfide Ore Based on Partial Ordered Set

作　　者：韩梓晴 李孜军[1] 徐圆圆 HAN Ziqing;LI Zijun;XU Yuanyuan(School of Resources and Safety Engineering,Central South University,Changsha 410083,Hunan,China)

机构地区：[1]中南大学资源与安全工程学院,湖南长沙410083

出　　处：《黄金科学技术》2022年第1期105-112,共8页Gold Science and Technology

基　　金：国家重点研发计划项目“高海拔高寒地区矿井通风安全保障技术”(编号:2018YFC0808404);中南大学研究生自主探索创新项目“含硫矿石自燃倾向性鉴定方法的规范化研究”(编号:2020zzts698)联合资助。

摘　　要：针对传统硫化矿石自燃倾向性评价方法中指标权重的赋值争议问题,基于蕴含权重的偏序集理论,建立硫化矿石自燃倾向性偏序集评价模型。首先,阐明评价指标集并收集待判样本数据;其次,借助信息熵理论获取评价指标的权重顺序信息,构造偏序矩阵;最后,得出Hasse矩阵并绘制Hasse图,分析图中呈现的层集信息,实现对硫化矿石自燃倾向性的评价。实例分析表明:该评价模型可以有效避免传统评价方法中指标的赋权争议问题,分级结果更加精细,评价结果准确合理,具有很好的稳健性,为优化硫化矿石自燃倾向性评价方法提供了新思路。Aiming at the controversial assignment of index weight in the evaluation method of spontaneous combustion tendency of traditional sulfide ores,a partial ordered set evaluation model for spontaneous combustion tendency of sulfide ores was established based on the partial ordered set theory of implied weight.Firstly,the low temperature oxidation weight gain rate,self-hot spot temperature and spontaneous ignition point temperature of sulfide ores were selected as the evaluation index set and the classification standard of spontaneous combustion tendency of sulfide ores was determined.Secondly,the data of the samples to be judged were collected,and the virtual samples were artificially constructed according to the grading standards.The weight order information of the evaluation indexes was obtained by using the information entropy theory,and the partial order matrix was constructed.Finally,Hasse matrix was obtained and Hasse graph was drawn,and the layer set information presented in the graph was analyzed to evaluate the spontaneous combustion tendency of sulfide ores.The example analysis results show that the evaluation model can effectively avoid the weighting dispute of the traditional evaluation method,the classification results are more precise,the evaluation results are accurate and reasonable,and has good robustness,which provide a new idea for optimizing the evaluation method of spontaneous combustion tendency of sulfide ores.

关 键 词：硫化矿石 自燃倾向性 指标权重 偏序集 Hasse图 

分 类 号：X936[环境科学与工程—安全科学]