lump coal

Experimental study on impact of water ratio to adsorption of lump coal

块煤含水率对其吸附性影响的试验研究

The Pore Features of Lump Coal and Its Influence Factors

块煤的孔隙特征及其影响因素

The Research of Monitoring Method the Rate of Lump Coal Using Image Processing

原煤块率图象检测方法的研究

Technical study on millisecond Blasting technology to increase lump coal rate

微差爆破提高块煤率的技术研究

Edge detection of lump coal based on gray level peaks in space

基于灰度空间极值法的块煤边缘检测

Technique study for increasing lump coal rate

提高块煤率的技术方案研究

Test Research of Lump Coal Separation by Deep Fluidized Bed of Air Dense Medium

深床型流化床块煤选矸的试验研究

Millisecond blasting technology applied to improve lump coal rate of coal blasting mining face

微差爆破提高炮采工作面块煤率的技术

Effective ways to raise yield of lump coal

提高块煤产率的有效途径

May be used in iced coal or lump coal with a certain thickness .

能用于对一定厚度的冻煤或大块煤采样。

Millisecond blasting technology used to raise lump coal ratio of coal face and safety measures

提高炮采工作面块碳率的微差爆破技术及安全措施

Coal Bunker Spacing Is an Effective Way for Increasing Pit Lump Coal Ratio

煤仓限位是提高矿井块炭生产率的有效途径

Study on inclined-trough washing technology of high ash lump coal

斜槽入选高灰块煤工艺技术的研究

Working Practice of Improving Lump Coal and Reducing Loss with Anthracite in Jincheng

晋城无烟煤提块降损工作实践

Discussion on lump coal rate of drilling and blasting mining method for thin seam in Fujian Province

福建省薄煤层炮采块煤率问题的探讨

The rational selection of space between shot holes is the key to improvement of lump coal rate .

为了提高煤炭块率，炮孔间距的合理选取是提高块煤率的关键。

Reasearch of Cutting Diagram and Lump Coal Rate of Cutting Drum Intellectualized CAD Software

采煤机滚筒智能优化CAD软件中切削图与块煤率的研究

Two-Step Gasification with Oxygen-Enriched Air of Lump Coal in Fixed Bed for Ammonia Production

合成氨两步法固定床块煤富氧制气

So , improving the productivity of lump coal has been an importance mean of the economic development of coal industry .

因此，提高煤矿块煤的生产率已成为煤炭企业经济发展的重要手段。

Comprehensive Revamp for Decrease in Breakage of Lump Coal for Gasification in Conveyance

降低造气块煤输送破损率的综合改造

This method of coal preparation with air dense medium of deep fluidized bed provides a new way for lump coal separation .

深床型空气重介流化床分选方法为块煤排矸提供了一条新途径。

The practice proves that given blasting technique can prominently raise the lump coal ratio and get a good economic benefit .

实践证明，文中所研究的爆破技术能较显著地提高块煤率，能取得较好的经济效益。

The study results showed that the acoustic emission incident occurred during the whole lump coal splitting process would have different emission features at different loading stages .

试验结果表明：声发射事件伴随整个煤试样劈裂过程，在不同的加载阶段有不同的声发射特征；

Method of Solving the Trouble of Jig 's air Valve Which is Used in BATAC Lump Coal Jig Manufactured in Germany

德国BATAC块煤跳汰机旋转风阀的使用经验

The lump coal ratio has been raised from 6 % to 10 % and the production is increased by 18.8 % under the conditions of safety and high production .

在安全、高效的前提下，块碳率提高了6%～10%，单产增加188%。

The fracture surface of lump coal when the impulse is exerted on the vertical bedding is smooth and the broken block number is fewer ;

对于沿着垂直节理方向施加冲量的块煤产生的断裂面平整，破碎的块数较少；

It is the focus problem for anthracitic coal production enterprise to increase percentage of lump coal and reduce amount of lump coal with size smaller than lower size limit .

提高块煤率、降低块煤限下率是当前无烟煤生产企业关注的焦点问题。

The pore features of 47 lump coal samples have been studied systematically by using mercury porosimeter , scanning electron microscope and quantitative determination of microscopic composition of coal .

根据47个煤样的压汞实验、扫描电子显微镜观测，以及显微煤岩组份定量等手段，作者首次系统地研究了块煤的孔隙特征。

The PC controlled test machine was applied to the Brazilian splitting test of lump coal and the acoustic emission features of the coal during the Brazilian splitting process was studied .

利用微机控制试验机进行了煤试样的巴西劈裂试验，对煤巴西劈裂全过程中的声发射特征进行了研究。

In order to understand the properties of impact toughness of coal with different impact speeds and the change of impact toughness of lump coal to joint directivity of lump coal .

为了研究不同冲击速度条件下块煤冲击韧度的变化特征，以及块煤节理方向性对块煤冲击韧度的变化特性。