摘要
将未确知测度模型应用到矿仓硫精矿自燃的危险性评价当中。选取矿仓硫精矿的水溶性铁离子含量、硫精矿的含水量、硫精矿的自热幅度、硫精矿的着火点、硫精矿的种类、矿仓的环境温度、硫精矿的储存量、矿仓的消防系统、通风条件、硫精矿的储存周期,以及矿仓的管理水平11项指标作为未确知测度模型的判别指标。依据实测数据建立了各个指标的未确知测度函数,基于信息熵理论计算出各判别指标的权重,运用置信度识别准则进行等级判定,并得出评价结果。将该方法对安徽冬瓜山铜矿两矿仓内硫精矿的自燃危险性进行了评价,结果表明:所得评价结果与矿仓的实际情况完全相符,该方法可以运用到矿仓硫精矿自燃危险性的定量评价中,解决了评价过程中许多因素的不确定性问题。
The uncertainty measurement model was applied to evaluate spontaneous combustion of sulfur concentrate in storehouse. Eleven main factors that influence spontaneous combustion of sulfur concentrate were chosen as the evalua- tion indexes of uncertainty measurement assessment model, including water soluble Fe2. ＋ Fe3~ , water content, self- heating tendency, ignition point, sulfur concentrate type, environmental temperature in storehouse, volume of sulfur con- centrate dump, fire fighting system, ventilation conditions, storage period, and management level. Each uncertainty measurement function was obtained based on the in-situ data;entropy theory was used to calculate the index weight of all indexes, and the assessment results were obtained by using credible recognition criteria. Spontaneous combustion risk of two sulfur concentrates in Dongguashan Mine was evaluated. The research results show that the assessment re- sults are consistent with the actual instances;this new risk evaluation method can be usefully used to assess the sponta- neous combustion risk quantitatively of sulfur concentrate in storehouse, moreover, it can solve many uncertainty prob- lems in spontaneous combustion evaluation on sulfur concentrate.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2010年第2期264-268,共5页
Journal of China Coal Society
基金
国家"十一五"科技支撑计划课题资助项目(2006BAK04B03-02)
中南大学研究生学位论文创新基金资助项目(1960-71131100023)
中南大学贵重仪器设备开放中心基金资助项目(ZKJ2009008)
关键词
未确知测度模型
矿仓硫精矿
自燃危险性
置信度识别准则
uncertainty measurement model
sulfur concentrate in storehouse
spontaneous combustion
credible degree recognition criterion
