摘要
为解决大同矿区厚1.2 m以下薄煤层综采开采难题,对综采工作面"三机"等设备进行了特殊设计与配套,优化了采煤机功率与支架工作阻力,选用了MG170/388型采煤机与ZY4000/08/16型支架,工作面刮板输送机安装了支架侧抬高千斤顶,刮板输送机头尾采用了可调支承座,支架设计了液压控制的放炮落煤挡煤装置,转载机配套使用了迈步液压自移系统,带式输送机配套使用了液压自移机尾。在姜家湾矿78119工作面进行试验,结果表明,"三机"设备配套合理,机械自动化程度大幅提高,工人的劳动强度大幅降低,实现了"两硬"(硬煤层、硬顶板)条件下1.2 m以下薄煤层的综合机械化开采,工作面月产煤3.8万t。
In order to solve the fully mechanized coal mining problems in thin seam with a thickness below 1.2 m in Datong Mining Area,a special design and a equipment matched was conducted for ＂the three machines＂ and other equipment of the fully mechanized coal mining face.The power of the coal shearer and the working resistances of the powered support were optimized.A MG170/388 mode coal shearer and the ZY4000/08/16 mode powered supports were selected for the coal mining face.A side lifting pushing jack of the powered support was equipped for the armored face conveyor.An adjustable support base was applied to the head and tail parts of the armored face conveyor.A hydraulic controlled blasting coal spilling device was designed for the powered support.A hydraulic walking system was equipped with the stage loader.A hydraulic walking tail part was applied to the belt conveyor.A trial operation was conducted in No.78119 coal mining face of Jiangjiawan Mine,Datong Coal Mine Group.The trial results showed that ＂the three machines＂ and other equipment matched were rational,the machinery automation degree was highly improved and the labor strength of the coal miners was highly reduced.A fully mechanized coal mining in the thin seam with a thickness below 1.2 m could be realized under the ＂two hard＂ conditions and the month coal production of the coal mining face was 38 000 t.
出处
《煤炭科学技术》
CAS
北大核心
2011年第11期40-43,共4页
Coal Science and Technology
关键词
硬煤层
硬顶板
薄煤层
设备配套
hard seam
hard roof
thin seam
equipment matched
