The authors has expounded the top coal crushing mechanism and reasonable determination of caving coal height in roof caving workface,which helps to determine the feasibility of roof caving and complete mining according to the thickness of top coal and the degree of softness and hardness.
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;针对放顶煤工作面的顶煤厚度和煤质软硬程度,正确判定顶煤是否具有可放性,为工作面能否一次采全高提供科学依据。
Top Coal Crushing Mechanism and Determination of Roof Caving Height in Roof Caving Workface
放顶煤工作面顶煤破碎机理及放煤高度的确定
PFD Impact Breaker is a new type of high-efficient breaker mainly used in electricity-generating stations for reduction of coal.
PFD反击式破碎机为新型破碎机，主要用于电站碎煤用。
The clean coal is sent to a crusher and the boilers.
干净的煤送入破碎机和锅炉。
Experimental Investigation in the Grinding Behaviour and the Comminuting Mechanism of Coal;
煤的可磨性指数变化及破碎机理研究
One that breaks, as a machine for breaking up or crushing a substance, such as rock, coal, or plant fibers.
轧碎机，破碎机用来轧碎或碾碎一种物质，如岩石、煤或植物纤维的机器
The Research of Theory on the Broad High Stress Frangible Roadway Support;
大跨度高地压破碎煤巷支护及机理研究
Application of 2PGL High-tenacity Double Roll Crusher in Xinghua Coal Washery
2PGL高强力双齿辊破碎机在杏花洗煤厂中的应用
Study of Crushing Regulation and Experiment on Selective Crushing and Separation of Coal and Gangue;
煤矸选择性破碎分选实验及破碎规律的研究
Study on the Roadway Floor Heave Mechanism and Control Technology of Soft and Fragmental Surrounding Rock in Zhuxianzhuang Coal Mine;
朱仙庄煤矿松软破碎围岩巷道底鼓机理及控制技术研究
Interparticle Comminution,More Crushing & Less Grinding and Inertia Cone Crusher
料层粉碎、多碎少磨与惯性圆锥破碎机
Current status and prospects on the study of crush theory and crusher
破碎理论及破碎机的研究现状与展望
Fully automatic material transfer ,no laborer required.
经破碎机破碎过的碎料自回收，无需人工参与。
We are an excellent manufacturer specialized in shreding machinery, shreding knife &related machine parts.
本公司专门生产破碎机械、破碎刀、粉碎机械、粉碎刀及相关机械零件。
The selection of primary parameters of demolishing the foundation of air compressor in the coal mine by static fragmentation measure, implementation method and blasting results are presented.
介绍了用静态破裂法拆除煤矿空压机基础的主要参数选取、施工方法及破碎效果。
The Reliability Analysis of Breaking Conveyance System in Huolinhe Coal Group;
霍煤集团破碎运输系统的可靠性研究
Mechanics Analysis and Experimental Study on the Impatct Cutting of Coal;
煤岩冲击破碎的力学行为及实验研究
Study on Selective Crashing and Separation of the Mixture of Coal and Gangue;
煤矸混合物料选择性破碎分选的研究
compound swinging type jaw crusher
复合摆动型腭式破碎机