8.8m智能超大采高综采工作面关键技术与装备  

Key technologies and equipments for 8.8 m intelligent super large mining height fully-mechanized mining face mining

作　　者：杨俊哲[1] YANG Junzhe(Shenhua Shendong Coal Group Co.,Ltd.,Shenmu 719315,China)

机构地区：[1]神华神东煤炭集团有限责任公司

出　　处：《煤炭科学技术》2019年第10期116-124,共9页Coal Science and Technology

基　　金：国家重点研发计划资助项目(2017YFC0804310)

摘　　要：为解决浅埋煤层8.8 m特厚煤层一次采全高安全高效开采的问题,以上湾煤矿首个8.8 m超大采高综采工作面12401工作面为研究对象,利用数值模拟、现场实践以及工程类比等手段,在设备配套、围岩控制、回采技术以及信息化方面进行技术攻关,形成了一套8.8 m超大采高一次采全高综采关键技术。实践证明:采取的巷道支护、采场矿压监测、三角区顶板控制、支架自动增压补液、防片帮、防漏矸、回采工艺、工程质量控制以及信息化等技术,保证了综采面安全高效回采。8.8 m超大采高一次采全高综采设备选型及配套合理,不仅能够满足综采面生产、支护以及运输需要,而且生产能力显著提升。该综采工作面与同煤层7 m大采高综采工作面相比,可多回采煤炭405万t,采出率提高了20.2%。该成套装备、工艺及关键技术的研发和应用,为类似条件下特厚煤层的开采提供技术指导和借鉴。In order to solve the problem of full-height safe and efficient mining in shallow coal seams with a thickness of 8.8 m,through the comparison and demonstration of technical feasibility,high yield and high efficiency,resource recovery and cost of tons of coal,the first 8.8 m super-large mining height of No.12401 fully-mechanized mining face was taken as the research object by means of theoretical calculation,numerical simulation,field practice and engineering analogy.Through joint technical research of supporting heavy equipment,surrounding rock control,mining technology and information,a set of key technologies for 8.8 m super high mining and full mining were developed.The practice has proved that the adoption of roadway support,mining field pressure monitoring,triangular roof control,automatic pressurized fluid replenishment,anti-slipping,anti-leakage,mining technology,engineering quality control and information technology has ensured safe and efficient recovery of comprehensive mining.The selection and matching of the 8.8 m super-high mining and full-height fully-mechanized mining equipment can not only meet the production,support and transportation needs of the fully-mechanized mining face,but also significantly improve the production capacity.Compared with the 7 m full-mechanized mining face of large mining height in the same coal seam,the fully-mechanized mining face can recover more than 4.05 million tons of coal on one side,the recovery rate is increased by 20.2%.The research and application of key technologies such as complete sets of equipment and process for the 8.8 m super-large mining height key technology provides technical guidance and reference for the mining of extra-thick coal seams under similar conditions.

关 键 词：8.8 m超大采高 厚煤层 一次采全高 智能开采 

分 类 号：TD823.9[矿业工程—煤矿开采]