曹家滩煤矿大采高智能化综放面工艺优化  

Optimization of intelligent fully mechanized top coal caving face with large mining height in Caojiatan Coal Mine

作　　者：雷亚军 闫少宏[2] 王锐 申宇鹏 华照来 周小坡 LEI Ya-jun;YAN Shao-hong;WANG Rui;SHEN Yu-peng;HUA Zhao-lai;ZHOU Xiao-po(Shaanxi Shanmei Caojiatan Mining Co.,Ltd.,Yulin 719000,China;School of Energy and Mining Engineering,China University of Mining and Technology-Beijing,Beijing 100083,China)

机构地区：[1]陕西陕煤曹家滩矿业有限公司,陕西榆林719000 [2]中国矿业大学(北京)能源与矿业学院,北京100083

出　　处：《煤炭工程》2022年第12期7-12,共6页Coal Engineering

基　　金：国家重点研发计划资助项目(2018YFC0604501)

摘　　要：基于曹家滩煤矿122107大采高综放工作面工艺参数实测结果,分析了曹家滩煤矿综放工作面各个工序所用时间和工作面系统开机率,提出了曹家滩综放工作面工艺再优化提高的主要途径,即适度加大工作面长度至350m,提高采煤机截深至1.0m,提高采煤机割煤速度至6~8m/min;支架移架时间应为15.5~17.3s,推前刮板输送机时间应为8.2~9.6s,拉后刮板输送机时间应为8.1~10.2s,伸护帮板时间应为8.6~10.2s,收护帮板时间应为17.1~25.7s,放煤方式调整为“两轮顺序成组往返放煤”,这样工作面月产量可以达到162~217万t,年产量可以达到1784~2390万t,开采效率将是现阶段的1.8~2.4倍。Based on the field measurement results of 122107 fully mechanized top coal caving face with large mining height in Caojiatan Coal Mine,the time of each working procedure and the operating rate of the working face system are systematically summarized.The main methods to optimize and ameliorate the technology of Caojiatan fully mechanized top coal caving face are put forward,which,moderately increase the length of the working face to 350 m,increase the cutting depth of the coal shearer to 1.0 m,and increase the cutting speed of the shearer to 6~8 m/min;the time for support moving should be 15.5~17.3 s,the time for pushing the scraper forward should be 8.2~9.6 s,the time for pulling the scraper backward should be 8.1~10.2 s,the time for extending the fender should be 8.6~10.2 s,and the time for pulling the fender back should be 17.1~25.7 s.The coal drawing method should be adjusted to“double round of coal drawing in groups”,so that the monthly output of the working face can reach 1.62~2.17 million tons,the annual output can reach 17.84 million t~23.9 million tons,and the mining efficiency will be 1.8~2.4 times of the current stage.

关 键 词：大采高综放开采 工作面开机率 片帮冒顶 回采工艺 放煤方式 

分 类 号：TD823.97[矿业工程—煤矿开采]