查询词典 gas coal

This invention relates to a gas reburning and double-channel rich/lean integrated combustor of low Nox, in which 7 air nozzles and 7 fuel nozzles interlace with each other. The air nozzles are all connected to a bellow and receive air supply from a large tank-type bellow. The fuel nozzles are connected to respective fuel system through the bellow. From up to down, the 7 fuel nozzles are: the gas nozzle, the double-channel up-lean and down-rich coal powder nozzle, the double channel up-rich and down-lean coal powder channel, 3 double-channel level rich/lean coal powder nozzle (the rich phase is near the flame), and the oil nozzle inside the nethermost air nozzle.

气体再燃与双通道浓淡集成型低Nox燃烧器，7个空气喷嘴和7个燃料喷嘴交错布置，各空气喷嘴与风箱连接，由一个槽型体大风箱供风，各燃料喷嘴均穿过风箱同各自的燃料系统连接，7个燃料喷嘴从上至下依次排列为：燃气喷嘴、双通道上淡下浓煤粉喷嘴、双通道上浓下淡煤粉喷嘴和3个双通道水平浓淡煤粉喷嘴，燃油喷嘴置于最下边的空气喷嘴中。

Injecting CO2 into the subsurface oil and gas reservoirs and coal-beds, at the moment, is the most realistic choice in reducing the CO2 emission into the atmosphere, which can not only enhance the recoveries of the oil and gas, and coal bed methane, but also can sequestrate partial CO2 within the subsurface reservoirs and coal beds permanently.

把CO2注入油气藏、煤层提高油气采收率的方法(CO2-EOR、CO2-EGR、CO2-ECBM)，因其在提高石油、天然气和煤层气采收率的同时，又能使一部分CO2永久地埋存于地下，实现油气增产和CO2减排的双赢效果，而成为当今CO2减排最具潜力的现实选择。

The study of gas content and influencing factor of the coal seam unmined is an important fundamental research. We take the 14(superscript #) coal seam of Xiaonan coal mine of Tiefa basin as an example and analyse the geologic agent systematically which influences the gas content.

未开采煤层瓦斯含量及影响因素研究，是煤矿安全生产的重要基础研究工作，以铁法盆地晓南矿未开采的14煤层为例，系统分析了影响瓦斯含量的地质因素。

The geologic agent affecting the gas occurrence of the coal seam unmined in Xiaonan coal mine;2. We take the 14# coal seam of Xiaonan coal mine of Tiefa basin as an example and analyse the geologic agent systematically which influences the gas content.

未开采煤层瓦斯含量及影响因素研究，是煤矿安全生产的重要基础研究工作，以铁法盆地晓南矿未开采的14#煤层为例，系统分析了影响瓦斯含量的地质因素。

The synthetic gas and ash composition heat transfer and flow in vertical pipe of coal gasifier are simulated and analyzed by the theory and program presented. The temperature、velocity and concentration variations of synthetic gas and ash composition are accomplished. The influences of coal gasifier working condition and vertical pipe parameters on the gas and ash cooling process are discussed. The law of solid-gas two phase turbulent flow and heat transfer is further revealed.

本文还应用上述理论和程序，在国内首次对气化炉激冷室下降管内合成气和灰份的流动和传热过程进行了数值计算和分析，得到下降管内合成气和灰份的温度、速度和浓度等参数的变化，还讨论了气化炉运行参数和下降管结构参数如气化温度、下降管尺寸、灰份性质等参数变化对合成气降温过程的影响，进一步揭示了下降管内气固两相的流动和传热规律。

In my paper, the storage characteristic of the coal seam and mechanical properties of gas-filled coal is introduced firstly, as offers the basis of the study of physical parameter and effective stress of coal and the foundation of the mathematical model of fluid-solid coupling of coal-bed gas.

本文首先对煤层瓦斯的储存特征及含瓦斯煤的主要物理力学特性进行了概述，为耦合物性参数和煤体有效应力的分析研究与建立煤层瓦斯流固耦合渗流模型提供了依据。

Intensity with can divide into according to coal its: Brown coal , jet coal , glue coal,, weak to glue coal , 1/2 glue coal , bottle coal , gas rich coal , fat coal , 1/3 coking coal , coking coal ,, lean coal

按其煤化程度不同可分为：褐煤、长焰煤、不粘煤、弱粘煤、1/2中粘煤、气煤、气肥煤、肥煤、1/3焦煤、焦煤、瘦煤、贫瘦煤、贫煤、无烟煤。

In the clean development mechanism project under the auspices of the ground Peigou Coal mine gas power stations out of the use of low-concentration gas, a gas-fired generating units and the use of grid, the energy-saving emission reduction technology for coal mine gas management and environmental protection have an active role in the promotion of a wide range of value.

在清洁发展机制项目的资助下，裴沟煤矿地面瓦斯发电站利用井下抽出的低浓度瓦斯，实现了使用燃气发电机组并网发电，该技术对于矿井节能减排、瓦斯治理和环境保护都有积极作用，具有广泛的推广使用价值。

In the gasifying oven, there are coal feeding port and fuel gas feeding port at the top and the bottom, an inclined plane which drops coal grains and accumulates them onto the bottom, and the ventilating duct with opening over the fuel gas feeding port. It has also steam feeding port at the bottom, resultant gas outlet on the side and waste gas outlet at the upper part.

它是在气化炉的上部和底部分别设有煤供给口和燃气供给口，并设有使投入的煤颗粒落下、堆积到底部上的倾斜面，以及开口端在燃气供给口的上方、在炉内朝上延伸的通风管；还在气化炉的下部和侧部分别设置蒸汽供给口和生成气体排出口，并在上部设置废气排出口。

And it is concluded that the No.4-2coal seam is a mid-reserve and low-permeable seam, with surrounding rocks having low enclosed system and high permeability. And the coal seam's gas content is low, while its quantity in the roof-sandstone which is the main source of coalface's gas emission is high . The quantitative index used to analyze gas content and gas emission amount are pointed out systematically. And gray association analysis method is adopted to search the main factors affecting coal-bed content and gas emission amount.

系统提出了分析影响煤层瓦斯含量与采面瓦斯涌出量大小的量化因素指标，并将灰色关联分析原理引入煤层瓦斯含量与瓦斯涌出量主控因素的研究中，筛选出了煤层顶板含油指数，顶板砂泥岩比、4-2号煤层顶板以上煤系厚度3个因素指标为影响4-2号煤层瓦斯含量的主控地质因素；煤层埋藏深度，煤层瓦斯含量，煤层顶板含油气砂岩厚度，煤层顶板含油强度及工作面回采进度5个因素为影响综采面瓦斯涌出量的主控因素。

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。