1) high sulphur occurring low rank coal
高硫低阶煤
2) high-low rank
高、低煤阶
1.
Comparison about key controlling factors of high-low rank CBM reservoir formation not only is an essential part of the CBM formation mechanism, but also has the great theoretical and practical significances to development and improving Chinese CBM basal geo.
煤层气地质研究及勘探实践证明，高、低煤阶煤层气藏地质特征、成藏演化过程及开发工艺存在显著差异。
3) grizzle
[英]['ɡrɪzl] [美]['grɪzḷ]
高硫低级煤
4) low rank coal
低煤阶煤
1.
For making best use of low rank coal which came up to 40% in China's total coal reserve,the new method of gradual gasifying of low rank coal was put forward,namely,mild gasification and its heat coalite gasified continuously under high temperature,and the market and profits of its product were analyzed.
为充分利用好占中国煤炭资源 4 0 %以上的低煤阶煤 ,提出低煤阶煤分级气化新工艺———温和气化及其热半焦连续高温气化 ,并对其产品进行了其市场和经济分
2.
The resources, production, consumption and classification of low rank coal in the world have been described.
阐述了世界低煤阶煤的资源、生产、消费及其分类，国际低阶煤分类日趋统一，结合我国资源特点，建议增加次烟煤（ｓｕｂｂｉｔｕｍｉｎｏｕｓｃｏａｌ）类，便于和国际低阶煤分类衔接。
3.
The resources of low rank coal in the world have introduced in this paper.
本文介绍了世界低煤阶煤炭资源及其分类。
5) low-rank coal
低煤阶
1.
Exploration and development of CBM from low-rank coals have been very successful in the world,and its exploration potential in China is very large because China is very rich in such resource.
世界范围内低阶煤层气勘探开发已获得了巨大的成功,中国拥有丰富的低煤阶煤层气资源,具有广阔的勘探前景。
2.
CBM gas reservoirs in low-rank coals are featured by large thickness of coal seams,high permeability,low gas content,and high adsorption saturation.
低煤阶煤层气藏具有煤层厚度大、渗透性好、含气量低但吸附饱和度较高等特征。
3.
In recent years, the rapid development of the coalbed methane accumulation theory and exploitation technology have led to the successful development of low-rank coalbed methane accumulations, continuous thin-layer methane accumulations and high-rank, low-permeability coalbed methane accumulations, which has greatly widened the coalbed methane development scope.
近年国内外煤层气成藏理论、开发技术的快速发展,使得低煤阶气藏、连续薄层气藏、高煤阶低渗气藏等都获得成功开发,大大拓宽了煤层气的开发领域。
6) low coal rank
低煤阶
1.
The exploration strategy of coal bed methane of coal basin in low coal rank in northwestern China;
浅议我国西北低煤阶含煤盆地煤层气的勘探对策
补充资料：低NO_x煤粉燃烧器
低NO_x煤粉燃烧器
low NO_x pulverized-coal burner
(1 iN()[11、、一f、一、一:一、11:一，‘一i低NO二煤粉燃烧器(low NOJ pulverized一eoalburner)能降低和抑制NO，生成的煤粉燃烧器。低N认煤粉燃烧器通过特殊的结构设计，采用空气分级(见空气分级)、燃料分级(见二次燃料再燃烧)、浓淡燃烧和烟气再循环等技术措施，尽可能地降低燃烧区的氧浓度和火焰的峰值温度，减少在高温区的停留时间，抑制NO，的生成，或使已生成的NO，在下游区域还原成NZ。其中空气分级是应用最广.比较成熟的低NO，技术。现有电站锅炉上采用的低NO，燃烧器的结构型式很多，随着制造厂的不同而有较大的差异，但基本原理类同。 双调风旋流燃烧器将二次风分成内二次风和外二次风两股气流，通过调风器和旋流叶片分别控制各NO，的生成，见图5。二次空气SGR一孟二次空气一次空气二次空气S口砚一二次空气 图5 SGR燃烧器 对于采用低NO，嫩烧器的锅炉，除燃用贫煤和无烟煤的以外，经过燃烧优化调整后，通常均可使NO，的排放量低于650 mg/m3(02=6%)(液态排渣锅炉NO，的排放量可能会比较高)。对于已有锅炉改用低NO二燃烧器时，因燃烧推迟而有可能会使效率降低一些。自的风量和旋流强度，以调节一、二次风的混合，使其在燃烧器出口附近的火焰根部形成缺氧富燃料区，使燃烧推迟，火焰温度降低，NO，的生成量减少，在下游形成富氧的燃尽区，保证燃料的完全燃烧，见图1。外二次风调风俗 ┌─┐ ┌────────┤川│ │l/沪. │ │ └────────┤ │┌─────────┤ ││一仁业班丛旦止罕生│ │└─────────┴─┘点火油枪次风+煤粉或烟气 图1双调风旋流燃烧器 低NO，直流燃烧器将80%左右的燃烧空气送人主燃烧器，在主燃烧器区域形成缺氧富燃料的工况，降低火焰峰值温度，既减少NO二的生成，又有可能使已生成的NO，还原成氮分子(NZ).从而减少NO二的排放量。而在主燃烧器的顶部设置燃尽风OFA，将剩余的空气由此送人炉膛，使未完全燃烧产物燃尽.见图2。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条