attritus

In the light of the fragmentized coal body in 2315 comprehensive mechanical coal mining face of Chengzhuang Coal Mine, this paper applies the grouting solidifying technology with Malisan N to solve successfully the difficulties existing in the ceiling management in the stoping process.

对成庄矿2315综放工作面中的破碎煤体应用马丽散N注浆固化技术,成功解决了回采过程中顶板管理存在的一系列困难。

In the light of the hidden dangers existing in the back production of comprehensive mechanized coal mining face, this paper advances the scheme of reinforcing the fragmentized coal body around the geological structure to assure the smooth completion of the back production of coal mining face.

针对综放工作面回采过程中存在的安全隐患,提出采取对构造周围破碎煤体进行加固的方案,以保证工作面的顺利回采。

The effect of top coal smash result in different manners of moving support, pressure relief and “dower support—draw support—prop up” and sliding advance of support, are analyzed with contrast.

以放顶煤开采现场实测为基础 ,着重探讨了顶煤的变形特征、顶煤变形与支承压力的关系 ;对比分析了“卸载降架—拉架—支撑”和“带压移架”不同移架方式对顶煤破碎效果的影响 。

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。

Support of Full Seam Dynamic Gateway in Ultra Thick Broken Seam Suffered with Igneous Rock Intrusion

火成岩侵入的特厚破碎煤层全煤动压巷道支护

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

The oversize is reduced by roll crushers to the correct size of coal.

大粒煤再用对辊压碎机压碎到要求的粒度。

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

Grading System Design of Double Discs Airflow Crusher for Coal Superfine Grinding

煤超微粉碎双圆盘气流粉碎机的分级系统设计

Application Research for Double Disc Airflow Jet Mill on Coal Altra-grinding

双圆盘气流粉碎机在煤超微粉碎的应用研究

Determination of shatter strength of coal

GB/T15459-1995煤的抗碎强度测定方法

The clean coal is sent to a crusher and the boilers.

干净的煤送入破碎机和锅炉。

The secondary screens receive the coal from the crushers and remove the fines.

经压碎后的煤通过第二道筛，筛出细粉。

DEGRADATION CHARACTERISTICS OF CENTRAL QUEENSLAND COAL

中央昆士兰煤的块度碎细特性(英文)

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

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

Application of Fly Ash in Lime, Fly Ash and Gravel Foundation Construction;

粉煤灰在二灰碎石基层施工中的应用

Construction technique of CFG pile

水泥粉煤灰碎石桩(CFG桩)施工方法

Cement Pulverized Coal Ash Broken Stone Marker Processing Road Soft Soil Ground

水泥粉煤灰碎石桩处理公路软土地基