特厚煤层大采高综放工作面成套装备关键技术  

Key Technology of Complete Equipment for Fully-Mechanized Top Coal Caving Face with Large Mining Height in Extra-thick Seam

作　　者：王金华[1] 

机构地区：[1]中国煤炭科工集团有限公司,北京100013

出　　处：《煤炭科学技术》2013年第9期1-5,28,共6页Coal Science and Technology

基　　金：国家自然科学基金委员会与神华集团有限责任公司联合基金资助项目(U1261211);科技部国际科技合作资助项目(2010DFB73070)

摘　　要：我国厚及特厚煤层可采储量占煤炭总可采储量的约43%,大采高综放是特厚煤层开采的技术发展方向,具有产量高、机械化程度高、工效高、能耗低等特点,大采高综放工作面"三机"配套及可靠性是影响工作面安全高效、高采出率开采的关键因素。以塔山煤矿8105工作面为工程背景,确定了液压支架、采煤机、后部刮板输送机的技术参数,分析了提高工作面设备可靠性关键技术。试验结果表明:塔山煤矿8105大采高综放工作面设备平均开机率达92.1%,工作面采出率达88.9%;2011年8105工作面累计产煤1 084.9万t,实现了国产装备大采高综放工作面年产1 000万t的目标。The recoverable reserves in thick and extra-thick coal seams accounts for about 43% of the total recoverable coal reserves in China.The fully-mechanized method with coal caving for large mining height is the development direction of extra-thick coal seam mining technology, which has characteristics of high production, high mechanization, high efficiency and low energy consumption and others.The e- quipment matching of shearer, hydraulic support and scraper conveyor in fully-mechanized top coal caving face with large mining height and its reliability are key factors for coal mining with safety,high efficiency and high recovery rate.Taking the working face 8105 at Tashan Coal Mine as the engineering background, the paper defined the technical characteristic parameters of the support, shearer and scraper conveyor behind the hydraulic support, and analyzed the key factor which improved the reliability of the equipment. The underground test showed that the average operating rate of the equipment at the fully-mechanized top coal caving face with large mining height 8105 at Tas ban Coal Mine reached 92. 1%, the recovery rate at the face was 88.9%, and the raw coal produced at the face 8105 in 2011 reached 10. 849 Mr,which achieved the objective of 10 Mt coal produced at the fully-mechanized top coal caving face with large mining height u- sing domestic equipment in a year.

关 键 词：特厚煤层 大采高 综放 工作面"三机"配套 

分 类 号：TD714.4[矿业工程—矿井通风与安全] TD823