查询词典 gas coal

In order to predict gas correctly,the relation of gas content and geological factors in Qinsui Coal Field is studied,the gas preserving rule is analysed.

为确实做好瓦斯的测报工作，研究了沁水煤田地质因素与瓦斯含量的关系，辩证地分析了瓦斯的赋存规

The conclusion shows that gas diffesion model under the third kind boundny conditionincludes the m0del under the first Kind boundary condition;mass transfer Biot criterion can repressent the featoreof gas diffesion field of coal particles.Moreover,the measurement method of gas diffu...

结论表明，第三类边界条件下的瓦斯扩散模型包含以往研究的第一类边界条件下的扩散模型，传质毕欧准数能表征煤粒瓦斯扩散场的特点；介绍了测试煤粒瓦斯扩散系数和表面传质系数的方法，给出了测试实例。

Gas is the coal"s accompany sources, it belongs cannot regenerate lustration energy sources, so increasing gas"s take out effect, and increasing using rate of gas, that is important task to improve the produce safe status and empolder undefiled energy sources.

瓦斯是煤炭的伴生资源，同时又属于不可再生的洁净能源，因此，提高瓦斯抽集效果，增加瓦斯能源利用比率，是改善煤矿安全生产状况和开发绿色能源的重要课题。

The results show that structure curvature is negatively related to coalbed gas content,relative gas emission rate,outburst gas and coal amounts which reflect No15 coalbed of Ji is above the neutral plane of folds.That is,the No15 coalbed of Ji Group is compressed in incline and is tensed in anticline,and the higher structure curvature is,the higher stress is.

结果表明，构造曲率与瓦斯含量、瓦斯相对涌出量、突出瓦斯量、突出煤量呈负相关关系，反映研究区己15煤层位于褶皱中和面以上，即煤层在向斜轴部受挤压而背斜轴部受拉张，正曲率值反映煤层受到拉张应力作用，负曲率值反映煤层受到挤压应力作用，曲率绝对值越大，受力越大。

CFB (Circulaiing Flued-bed Boiler), which could desulphurize by adding the lime stone in boiler, was adopted in the project of petroleum coke taking the place of oil; IGCC was adopted in coal to gas project; PC+FGD, such as limestone/plaster wet type desulfurization, liquid spray flue gas desulfurization, electron beam flue gas desulfurization and sprayed dry type desulfurization etc., was adopted in the other projects of thermoelectricity. Desulfurization inside boiler needs less running expenses but high investment and lower desulfurization efficiency.

主要为：高硫焦代油项目燃用石油焦，采用循环流化床炉内加石灰石脱硫；煤造气采用整体煤气化联合循环工艺；其余热电项目则采用煤粉炉加炉外烟气脱硫，具体的脱硫工艺选择有石灰石／石膏湿法脱硫、液柱喷射烟气脱硫、电子束法烟气脱硫以及旋转喷雾干燥法脱硫。

In the simulation model, the cellular automata model was applied to describe the tunnel network system, a methane gas cell was used to represent an energy unit of methane gas which was eradiated from walls of working spaces, mined coal piles, surrounding rocks and excavations, a grid cell was used to represent a tunnel grid and its states, these grid cells contain such state parameters as velocity and quantity of methane gas.

在该方法中，用元胞自动机模型描述地下矿巷道网络系统，用瓦斯元胞来描述从工作面煤壁、采落的煤堆、围岩和采空区渗出的瓦斯能量单元；用格子元胞描述巷道格子及其状态，这些格子元胞均用瓦斯运移速度和瓦斯含量等状态参数来描述。

Gas flow from borehole directly relates to the gas emission from drill drainage coal bed and judging the initial velocity of gas emission from the borehole .

钻孔瓦斯流量直接关系着钻孔抽放煤层瓦斯涌出量及钻孔瓦斯涌出初速度的判定，因此研究钻孔瓦斯流量的变化及发展趋势具有较大实用价值。

Author has introduced the corrosion causes of various kinds of gas tank ,the concrete requirements of protective materials and protective construction design,discussion was made for protection construction procedures of various kinds of gas tank ,the application practive indicates that the protection structure of coal gas tank ,forming surficial/middle/bottom layers is the ideal protection design.

介绍了各类气柜的腐蚀原因；提出了防护材料和防护结构设计的具体要求；论述了不同类型气柜的防护施工程序。

Coal bed gas absorbed gas free gas geologic reserve log data

煤层气；吸附气；游离气；地质储量；测井资料

In the process of steel production, it's important to avoid serious air pollution and take full advantage of coal gas which comes from blast furnace , coke oven , or converter. Generally, we collect the gas mentioned above and store it in the storage bank or storage tower, then the gas can be transmitted to the relay pressurizing station by piping. At last, the by product can be used as fuel.

在钢铁行业生产中，为了避免严重的空气污染并充分利用高炉、焦炉和转炉产生的煤气这一高热值燃料，一般处理过程是将产生的各种煤气分别收集到贮气罐再用管道传送到中继加气站经加压后供各用户使用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。