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uploads/coal bed.jpg

coal bed 煤層。

coal box

Methanol and its derivatives , acetylene chemical industry , coarse benzene processing , chemical fertilizers , coal tar deep processing , coal combined oil and the all - round utilization of coal bed methane and coke oven gas and so on 甲醇及衍生物、乙炔化工、粗笨加工、化肥、煤焦油深加工、煤制油以及煤層氣和焦爐煤氣多聯產利用等。

The underground goaf such as coal bed will restrict badly engineering construction , because it has existed for a long time and was picked unordering , also the distributing location is not clear 類似煤層等地下采空區,由于開采年代較久,再加之無序開采,相應分布的具體位置不詳,將嚴重制約著采空區附近的工程建設。

It is found that the appropriate lowering of the chamber temperature of water gas producer and the thickness of coal bed is favorable to controlling the volume fraction of o2 and co in the recovered flue gas 通過試驗與分析,發現適當降低水煤氣發生爐爐溫與煤層厚度,有利于控制回收煙氣中o2及co的體積分數。

According to the gas and geology theories , the space changing rule of basic parameters reflecting gas in coal bed can be regarded as a continuous function closely related to geology condition 摘要從瓦斯地質學的觀點出發,將反映煤層瓦斯基本參數的空間變化規律看做是與其賦存地質條件密切相關的連續函數。

We are the first but the only one large - scale private enterprise who is authorized by the state coal industry bureau to manage the development and utilization of coal bed methane in western china 是西部首家經政府煤炭工業局批準,唯一獲準經營煤礦瓦斯(煤層天然氣)治理及綜合利用的大型民營企業集團。

Take the fault as an example , the representing and operation of model were put forward , then the 3d coal bed could be gained 并以斷層為實例,給出了相應模型表示及其相應的集合運算,即集合間并、交、差等相關操作,從而生成三維煤礦床斷層。

The investigation provides theory basis for forecasting coal thickness , coal bed structure , and coal and gas outburst in fold area 該研究對于開展煤層厚度、煤層構造及煤與瓦斯突出的預測研究提供了理論依據。

At the same time the effects of various components of coal bed methane on the engine ' s combustion process and its emissions are also analyzed 同時分析了煤層氣組分變化對燃燒過程及排放物生成的影響。

The results show that the model is efficient for representing of coal beds , which provide a basis for future study 結果表明:這種模型可以較為有效地表達煤礦床三維空間實體,為進一步研究奠定了基礎。

Probe into the coal bed methane content and methane emission rate based on methane geological drawings 基于瓦斯地質編圖中煤層瓦斯含量與瓦斯涌出量關聯特征的探討

Elementary talk on management of the gas from work face of integrated release top coal in high gas thick coal bed 淺談高瓦斯厚煤層綜合放頂煤工作面瓦斯治理

Geological features and potential resources of coal bed methane in suibin fault depression of sanjiang basin 三江盆地綏濱斷陷地質特征及煤層氣資源潛力

Experimental study on mechanical character of sandstone of the upper plank of coal bed under high temperature 煤層頂板砂巖高溫狀態下力學特征試驗研究

Shanxi province should pay great attention to vigorous development and effective utilization of coal bed gas 山西省應注重煤層氣的大力開發與有效利用

Penetration - rate characteristic of multistratum coal bed and reasonable arrangement of hydraulic fracture bores 多分層煤層滲透率及壓裂鉆孔位置確定

Research on exploit condition of coal bed underground gasification in wanquan coal field , zhangjiakou 張家口市萬全煤田煤層地下氣化開發條件研究

Application of outburst prevention technique measure by using hydraulic cutting in outburst coal bed 突出煤層水力掏槽防突技術措施的應用

The research of effect of the tectonic stress to surrounding ground stability of coal bed tunnel 構造應力對煤層巷道圍巖穩定性的影響研究

Study of the mechanism of increasing production of kh 2d exploitation coal bed methane by gas injection 注氣開采煤層氣增產機制的研究