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这是长壁开采的开始。This is the beginning of longwall mining.
生产的密封主要用于长壁工作面液压支架上。These seals are primarily used for Longwall Roof Supports.
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这种新技术提高了长壁盘区采矿的效率。The new technique increases the efficiency of longwall panel mining.
他们以其简洁,可靠的设计跻身于液压长臂开采行业的领先地位。Their reliable, compact design make them the outstanding choice for powering hydraulic longwall equipment.
本文将倾斜长壁仰斜、俯斜开采的老顶岩层视为倾斜弹性板。The paper regards the main roof strata in uphill and downhill mining of an inclined longwall as a elastic plate.
通过对峙峰山煤矿5号煤采煤方法的设计,提出了采用综采放顶煤法回采5号煤。According to the conditions of seam No. 5 in Shifengshan Coal Mine, longwall face roof coal drawing method is chosen.
就矿山压力和瓦斯涌出等问题与走向长壁开采作了某些比较。The paper analyses the underground pressure and outflow of gas and compares them with the longwall mining along strike.
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长壁留煤柱支撑法开采是陕北中小煤矿普遍采用的一种采煤方法。Medium and small coal mines in north of Shaanxi Province generally adopt longwall remaining coal pillars support mining.
在大倾角倾斜煤层进行综放开采,支架的防倒、防滑成为决定放顶煤开采成功与否的关键。Using hydraulic supports in heavy grade longwall face with sublevel caving, anti-topple and antiskid are the key factors.
本文主要介绍国内外倾斜长壁采煤法的使用概况及发展趋势。The paper gives a brief account of the use and developing tendency of the inclined longwall coal-mining at home and abroad.
液压支架是综采工作面的重要设备,对整个工作面的安全生产起着至关重要的作用。Serving as the key equipment for fully mechanized longwall face, hydraulic support plays a major role to the whole face'safe production.
介绍了国内外长壁综采工作面的尺寸、设备、回采巷道布置及工作面单产的现状及发展趋势。The paper introduced the size, equipment, gateway arrangement and production of the fully mechanized longwall coal mining faces at home and abroad.
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介绍一种用于回收井下巷道支护锚杆的专用扳手的开发,设计和在井下现场的使用效果。This paper presents the development, design and performances of a specialized wrench for retrieving bolts which are used to support the longwall headings.
本文对综合机械化采煤工作面的三种沼气源的涌出进行了分析。In this paper, the methane emitted from three sources, i. e. from the goaf, the coal face and the broken coal, into a mechanized longwall face is analyzed.
所有长壁矿井布置的主要要求是在现有环境和限制下提供最佳的可能财务业绩。A major requirement of any longwall mine layout is that it provides the best possible financial performance, given the existing circumstances and limitations.
神华集团神东矿区哈拉沟煤矿在长壁工作面回风巷中采用了一种新型自移式超前支护支架组。A new type self-walking advance timbering support set is adopted in longwall coal mining face of Halagou Coal Mine, Shendong Coal District by Shenhua Group Co.
介绍了下沟煤矿综放开采支架选型与工作阻力的确定以及支架的适应性。The paper introduces type choose and working resistance determining of powered support and its application in longwall with top-coal caving face of xiagou mine.
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分析了影响综采放顶煤回收率的因素,探讨了提高回采率的途径。Analyses the factor that effect on the percentage of recovery in longwall mining with caving coal face, approaches the access to raise the percentage of recovery.
依据典型浅埋煤层工作面的实测和模拟,发现了采场老顶初次破断的非对称现象。By field observation and simulating test of shallow seam longwall mining, the phenomenon of main roof asymmetry breaking is discovered during the first weighting.
连续采煤机是现代化的采掘设备,不论是在房柱式采煤还是在长壁工作面煤巷掘进中,都具有很好的经济效益和社会效益。Continuous miner is the modern mining equipment with good economic and social returns both in the room and pillar mining and the roadway excavation in longwall face.