煤

Mineral fuel is the primary energy source in the world today, thereinto coal resource holds in store more than 75 percent in the total energy source. During coal's utilized, nocuousness matter expels into environment through all kings of method and works serious environmental pollution. Desulphurization has become one of primary objects of cleaning coal. At present, there are some primary problems of removing sulfur from coal. It is the size of coal is too small, the time of removing sulfur is too long, the technology is too complicated and the investment is much expensive etal.

中文题名燃煤微生物预处理浮选脱硫的试验研究副题名外文题名 Study on microbial pretreatment and floatation desulphurization in coal 论文作者周志付导师王英敏魏德洲教授学科专业安全技术及工程研究领域\研究方向学位级别博士学位授予单位东北大学学位授予日期2002 论文页码总数99页关键词燃煤微生物预处理－浮选脱硫煤炭脱硫馆藏号BSLW /2003 /X701 /2 矿物燃料是当今世界的主要能源，其中煤炭资源蕴藏量占总能源的75％以上，在煤的利用过程中，有害物质以各种方式排入周围环境，造成了严重的环境污染，因此脱硫已成为洁净煤技术的主要目标之一，而目前煤中硫的脱除存在的主要问题是：煤粉太细，脱硫时间长、技术复杂，投入费用太高等。

Cold flow field in the precombustion chamber applying nonsymmetrical jets was investigated by numerical means. Conditions favorable for CWS ignition and combustion were analyzed. Optimal geometry and operation conditions of precombustor were presented for multistage nozzle jet and internal-mixing nozzle jet, respectively.

对本实验室发展的水煤浆偏置射流预燃室进行了用水煤浆燃料时两相冷态流场的数值模拟，探讨了适合于水煤浆点火和稳燃的条件，并通过大量的计算，分别初步优选出适合于多级气动喷嘴雾炬以及ZN型喷嘴雾炬的较好预燃室结构和操作工况。

Under the base of investigation and research on natural radioactive nuclein in coal of Yili area,combining with the distributing characteristic and law of radioactive nuclein in coal of area and residents' customer of using coal in Yili area,the article raises decrement,resources,harmless and prevention and control measure of whole course managing rule with having a definite object in view and put foward a feasible plan and way for economie developmant of Yili area,resonable development and utilization of coal resources,preventing from pollution because of mining and utilizing coal and further protecting people's health.

文摘：在对伊犁地区煤中天然放射性核素调查研究的基础上，结合伊犁地区煤中放射性核素分布的特点、规律以及伊犁地区居民的用煤习惯，有的放矢的提出了减量化、资源化、无害化以及全过程管理原则的防治措施，为伊犁地区的经济发展，煤炭资源的合理开发和利用，防止因煤炭的开采利用而造成的污染，建设性的提出了切实可行的方案和途径。

But the CRI and CSR index of coke, used at present, is measured under the atmosphere of no alkali. In the different conditions, alkaline or not, the results of the selective reaction of coke microstructure are different,especially sometimes just opposit...

有碱或无碱存在，对焦炭显微结构的选择性反应序列有时是相反的，并发现∑ISO具有比各向异性结构更强的高温抗碱侵蚀的能力，而前者主要来自气煤类煤，后者主要来自强粘结性煤，因此认为，为了增加焦炭中∑ISO的含量，适当降低对M40(M25)、M10的要求，以达到多用气煤类煤，并改善焦炭的实际质量是可行的。

Petrographically,the CaO content in ash and the magnetive petrographic characteristics of coal samples were analyzed.

利用煤岩学的理论和方法，对煤灰分中氧化钙含量与煤样煤岩特征的关系进行了探讨。

In light of experimental data on petrographical analysis of coal, the proposal,as made by Prof.

从煤岩分析的大量数据，对β'能否代表煤中镜煤含量的探讨，也得出了否定的结论。

There is a great difference in the gross composition and biomarker distribution between chloroform extracts of coal and oil from coal measures, which results in a difficulty in oil-source correlation in a coal-bearing petrolific basin.

煤的氯仿抽提物族组成和生物标志物分布特征与煤系原油存在很大差别，导致含煤沉积盆地中煤系原油的油源确认十分困难。

The strongly nonlinear pore structures of pulverized coals can be described by the fractal theory. The pore fractal dimensions of 10 pulverized coals, which are in the range of 2.572~2.722, were analyzed on a N2 adsorption porometer. The apparent viscosities of coal water slurries were measured on a Haake rotary viscometer.

用分形理论能描述具有强烈非线性特征的煤粉孔隙结构，利用氮吸附仪分析得到10种煤样的孔隙分形维数为2.572~2.722，利用Haake黏度计测量水煤浆黏度，讨论了孔隙分形、水分、氧量和可磨性指数等对水煤浆性质的影响规律，得到相关的拟合经验公式。

The nitrogen in the coal exists in the forms of pyridine (N-6), pyrrolic and pyridone (N-5), quaternary nitrogen and nitrogen oxides. The N-Q near 401.5eV is assigned to a protonated or oxide form of pyridinic nitrogen. On this basis, the nitrogen in six-membered rings is the dominant in Yibin coal.

研究结果表明，宜宾煤中氮的官能团有4种，即吡啶(N-6)、吡啶(N-5)、质子化吡啶和氮氧化物，其中吡咯含量最大，煤中的N-X就是N-O，是煤中吡啶结构氮与氧直接结合的结果。

High organic sulfur Beisu bituminous coal and high pyritic sulfur Yangquan anthracite, which involved in raw coal and no inorganic sulfur coal, have been used to investigate the regularity about sulfur forms evolution during combustion by means of improved automatic sulfur analyzer in this paper.

利用改进的自动测硫仪，以高有机硫北宿烟煤和高黄铁矿硫阳泉无烟煤作为研究对象，在不同温度下对原煤和脱无机硫煤在煤燃烧过程中硫析出特性进行了研究，另外对原煤和脱无机硫煤在热解和燃烧时硫形态的变化进行了研究。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。