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gently inclined high seam mining method 缓倾斜厚煤层采煤法
inclined high seam mining method 倾斜厚煤层采煤法
high seam mining method 厚煤层采煤法
super high seam mining method 特厚煤层采煤法
Intoduces that uses breeding fire prevent and cure technology to reduce distribution air volume, quicken workface promoted speed, in high seam mining, it may remove breeding fire accidents in roadway. 介绍了厚煤层开采中采用减少配风量、快工作面推进速度、少采空区遗煤、空区灌浆、氮、采结束的采空区防火技术,能够消除巷道自燃发火事故。
Intoduces that uses breeding fire prevent and cure technology to reduce distribution air volume,quicken workface promoted speed,in high seam mining,it may remove breeding fire accidents in roadway. 介绍了厚煤层开采中采用减少配风量、加快工作面推进速度、减少采空区遗煤、采空区灌浆、注氮、回采结束的采空区防火技术,能够消除巷道自燃发火事故。
This mining technology is innovations in the layout of this kind working face,mining method and technologies act and solves many technological difficult problems for the thin coal seam mining. 该开采技术在工作面巷道布置、开采机械、采煤方法、回采工艺等开采技术上进行综合创新,解决了薄煤层开采的技术难题。
Inclined Medium-thickness Seam Mining Method 急倾斜中厚煤层开采方法
inclined superhigh seam mining method 倾斜特厚煤层采煤法
medium-thickness seam mining method 中厚煤层采煤法
gently inclined medium-thickness seam mining method 缓倾斜中厚煤层采煤法
Calculations of High Seam Mining Shield Working Resistance Under "Hard Roof and Coal" Conditions "两硬"条件大采高液压支架工作阻力计算
high seam mining 大采高
From analyzing coal-gas abstracts gas process, we contrasted and analyzed gas gushing rate from working face at high seam in slices and moveable mining. 从分析煤体瓦斯源解吸瓦斯过程出发,对厚煤层分层开采与综放开采两种开采方式下,工作面瓦斯涌出量作了量化对比分析。
gassy seam mining method 瓦斯煤层采煤法
steep low seam mining method 急倾斜薄煤层采煤法
The effective mining method at small piece section of superhigh and complicated seam is explored. 探索有效的特厚复杂结构煤层小块段的开采方式,可提高效益,降低消耗,开采简单,便于生产。
low seam mining method 薄煤层采煤法
The high seam drill 2000 is stainless steel construction and the cylinder rods of the 1st inner legs of the stinger and drill leg are stainless steel. 此厚煤层钻2000为不锈钢结构，且刺和钻支架的一级内支架所属的活塞杆也是不锈钢的。