查询词典 coal field

The rotational jet and local oxygen enrichment can improve the mixing of oxygen and pulverized coal, but the effect of coal injection is weak on the whole flow field in blowpipe. The mass and momentum transfer near the exit of lance are very strong.

结果表明，氧-煤喷枪的漩流、富氧率等仅在氧枪出口的有限区域内对流场有较大的影响；喷煤对整个直吹管内的流场影响较小，但在氧-煤喷枪出口附近区域会促使气相和煤粉激烈混合，动量和质量传输较强烈。

Reserve coal companies are exempted two field, covering 80 mu, 100,000 tons of coal reserve.

公司辖有储煤场两个，占地80多亩，储煤10万吨。

He may not want such a problem would rather spend the introduction of the high cost of imported coal, the coal mine field out what the problem is, of course, none of Chongqing.

他可能就是不想出这类问题，宁可花高成本引进外地的煤，外地的煤矿出什么问题，当然不关重庆的事。

In chapter two, the recent progress of coal gasification technology and the newest research results in the field of coal pyrolysis with solid heat carrier are reviewed.

在第一章介绍了本文的工作内容，第二章综述了国内外燃气-蒸汽联产技术的发展状况，以及固体热载体煤热解工艺的最新进展。

It is very important to promote the development on the field of coal chemistry by studing deeply on the mechanism of phenolic compounds produced during coal prolysis at lower temperature.

深入研究煤低温热解过程中酚类的生成机理具有典型性和代表性，对促进煤化学研究具有重要的意义。

The analysis of the flow field and the contours of temperature of the staged entrained flow coal gasifier show that the engulfment and the counter flow aroused by the secondary injection strengthen the mixing process in the staged gasifier. This had a positive effect on the improvement of coal conversion rate.

通过对分级气化炉流场特性和温度等值面特征的分析，发现分级气化炉中由于二次对冲给氧射流的引入，造成了二次卷吸效应以及冲击射流效应，加强了炉内混合过程，有利于碳转化率的进一步提高。

High-pressure and dense-phase pneumatic conveying of pulverized coal is a key technology in the field of large-scale entrained bed coal gasification. One of its major problems is how to obtain high solid-gas ratio in the conveying pipe.

煤粉高压密相气力输送是气流床加压气化的关键技术，其核心问题之一是如何获得较高的管路固气比。

In addition, the newly-rising coal chemical industry has an enormous demand on flame test equipment, especially in the field of coal-to-liquids.

同时，新近崛起的煤化工行业，尤其是煤制油领域，对火焰检测器也表现出了旺盛的需求。

We developed two kinds of new products for low-power and high-resolution mine shallow seismograph, mine geology detector and mine tunnel predictor. By field experimental verification, they can solve effectively the detecting problem of small geological structure and coal seam thickness around underground coal mine tunnel. Their performance and function of reached or exceeded the level of domestic similar products, and their power consumption (≤4W) is lower than the advanced high-resolution shallow seismographs at home and abroad.

开发出两款低功耗高分辨率矿井浅层地震仪产品——矿井地质探测仪和矿井巷道超前探测仪，通过现场试验验证，其可有效地解决煤矿井下巷道四周浅层地质小构造勘探和煤层厚度探测问题，仪器性能和功能达到或超过国内同类产品水平，且仪器的功耗(≤4W)小于国内外先进的高分辨率浅层地震仪产品

Integrating full numerical simulation method of furnace with coal characteristic analysis, the paper makes a more complete prediction of furnace slagging. The aerodynamic field, gas temperature field and original ash layer temperature field are studied.

本文采用炉内过程全模拟的方法，对炉内的空气动力场、烟气温度场和原生灰污层表面温度进行分析，并结合煤灰结渣特性判别准则，对炉内结渣状况作出较为完整的预报。

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。