气流粉碎参数对煤岩显微组分迁移的影响研究  

Research on the effect of airflow pulverization parameters on maceral migration of coal rock

作　　者：白来平 李振[2] 姚雷 王思璠 高博 王宏 谢永鑫 BAI Laiping;LI Zhen;YAO Lei;WANG Sifan;GAO Bo;WANG Hong;XIE Yongxin(Shaanxi New Energy Coal Preparation Technology Co.,Ltd.,Xi'an,Shaanxi 710010,China;College of Chemistry and Chemical Engineering,Xi'an University of Science and Technology,Xi'an,Shaanxi 710054,China)

机构地区：[1]陕西新能选煤技术有限公司,陕西省西安市710010 [2]西安科技大学化学与化工学院,陕西省西安市710054

出　　处：《中国煤炭》2024年第8期171-180,共10页China Coal

基　　金：国家重点研发计划项目(2023YFC2907701);陕西新能选煤技术有限公司研究合作开发项目(FW-26230303);霍英东教育基金会高等院校青年教师基金(171102)。

摘　　要：为探究气流粉碎分级过程中煤岩显微组分的迁移规律,通过气流粉碎分级设备对煤岩显微组分进行富集,对神府大保当煤进行了工业分析、元素分析、煤岩分析、激光粒度分析,并了解其煤质特性,通过四因素五水平正交试验,探究了入料频率、粉碎压力、一级分级机频率和二级分级机频率这4个因素对显微组分含量的影响。对正交试验进行优化结果表明,当入料频率为9 Hz、粉碎压力为0.6 MPa、一级分级机频率为20 Hz、二级分级机频率为140 Hz时,二级产品镜质组含量最高,为77.01%;当入料频率为3 Hz、粉碎压力为0.7 MPa、一级分级机频率为40 Hz、二级分级机频率为100 Hz时,三级产品中惰质组含量最高,为73.38%,研究结果可为实现煤炭高效利用提供技术支持。To investigate the migration rule of macerals of coal rock in the process of airflow pulverization and classification,the industrial analysis,elemental analysis,coal rock analysis,and laser particle size analysis were conducted on Shenfu Dabaodang coal to study its coal quality characteristics through enriching macerals by airflow pulverization and classification equipment,and the effects of feeding frequency,crushing pressure,primary classifier frequency and secondary classifier frequency on maceral content were studied through a four-factor five-level orthogonal experiment.The optimized orthogonal experiment results showed that the vitrinite content of the secondary product was the highest as 77.01%when the feeding frequency was 9 Hz,the crushing pressure was 0.6 MPa,the primary classifier frequency was 20 Hz and the secondary classifier frequency was 140 Hz;the inertinite content in the tertiary product was the highest as 73.38% when the feeding frequency was 3 Hz,the crushing pressure was 0.7 MPa,the primary classifier frequency was 40 Hz,and the secondary classifier frequency was 100 Hz.The research results could provide technical support for coal efficient utilization.

关 键 词：显微组分 气流粉碎 正交试验 组分迁移 

分 类 号：TD94[矿业工程—选矿]