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- Application of Vibration Shot Pre-shearing Coal in Light Caving Coal 震动炮预裂煤体在轻型放顶煤工作面的应用
- Optimizing Electromechanical Factors Raising Per Unit Yield of Light Caving Coal Face 优化机电要素提高轻放面单产
- light caving coal 轻型放顶煤
- The top coal broken mechanism and reasonable determination of caving coal heigh in caving coal faces are expounded. 主要阐述了放顶煤工作面顶煤破碎机理及放煤高度的合理确定;
- By improving the fully mechanized light caving technology,carrying out in the 1426D working face light caving practice,achieving the goal of safe production. 通过改进综采轻放工艺,在1426D工作面进行综采轻放开采实践,实现了安全生产目标。
- Through the transformation of tailings device of the scraper conveyor behind light caving face,this paper studied tailings mining technology,and achieved good results. 通过对轻放工作面后部刮板输送机进行尾煤装置改造,进行尾煤回收工艺研究,取得良好效果。
- The article describes that the caving coal of thick coalseam fully-mechanical face is successfully measured by micro-eletronic computer scales. 大同煤矿集团公司忻州窑矿两硬厚煤层一次采全高综放工作面,通过微电脑秤测量放煤量获得成功。
- The blasting mining caving coal face,large indination and overhand mining technology is successfully applied in Chaohua Coal Mine of Zhengzhou Coal Industry Group Comp. 郑州煤业集团超化煤矿采用炮采放顶煤工作面大倾角仰采技术取得成功,解决了大倾角采煤工作面的支架失稳问题。
- According to the experiences with rapid drilling in mechanized caving coal roadway, the author analyzes and proposes the measures to improve drilling - speed. 根据多年机掘煤巷快速掘进施工经验进行因素分析并提出了进一步提高快速掘进的措施。
- This paper introduces the design of light-duty roof caving coal hydraulic support equipped with flat tramcar and transport ation on ground and under ground. 介绍轻型放顶煤液压支架(下文简称轻放支架)配套平板车的设计过程及轻放支架在煤矿地面、井下的运输过程。
- 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. 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。
- The longwall coal mining method along a direction,coal-mining technology,longwall coal mining method along the dip,and caving coal technology are discussed. 对单一走向长壁采煤法、采煤工艺、倾斜长壁采煤法以及放顶煤采煤技术进行了论述;
- The fully mechanized caving coal mining under the railway in mine area will result in difficult maintenance of railway because of great deformation and subsidence speed of terrene and railway. 在矿区铁路下进行放顶煤开采所引起的地表及铁路的变形量大,变形速度快,从而导致矿区铁路维护困难。
- The extinguishment experiences of comprehensive mining caving coal in Nanshan Coal Mine are introduced from the system arrangement, the sequence and construction of the coal lane digging. 从南山煤矿综一队综采放顶煤工作面的系统布置、煤巷掘进的顺序和施工等几方面,介绍了南山煤矿的综采放顶煤的消防火经验。
- I groped for the light switch in the dark room. 我在黑暗的房间里摸索着找电灯开关。
- Talking About the Mining Coal Method at Light Type Caving Coal Face 轻型放顶煤回采方法探讨
- Discussion on approach of gas at upper corner of light caving face 浅谈轻放工作面上隅角瓦斯的处理
- The portrait shows fine effects of light and shade. 这幅肖像画的浓淡色调表现得很好。
- A red light is usually a signal of danger. 红灯通常是危险的信号。
