1.70 煤的破碎(breaking of coal) 将大煤块破碎至合格的粒度的过程 1.71 破碎比(size reduction ratio) 破碎前的物料的最大粒度与破碎后最大粒度之比值 2 运煤设备...
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Dealing with the practice of Jincheng Mining Bureau, the effect of breaking large coal on the washing technique and benefit is discussed, some helpful opinions are suggested.
结合晋城矿务局实际，论述了选前大块原煤的破碎对洗选工艺及效益的影响，并对破碎作业提出了一些建设性意见。
The paper emphatically analyses the interaction between the wall stress characteristic and coal getting by impact on the longwall face, proposes the work pattern of coal breaking by impact.
看重分析了长壁采煤工作面煤壁应力特点和冲击劈裂式采煤的相互作用关系，提出了冲击破煤的作业方式。
Using coal gangue and fly ash of Fuxin based on its basic properties checked, and using man-made graduation breaking coal gangue as aggregate, fly ash as filling.
在对阜新煤矸石、粉煤灰进行基本性质检测的基础上，将煤矸石破碎人工级配作集料、粉煤灰作填料。
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