查询词典 coal-black

The NOx release characteristic of the single coal and blended coals during combustion is studied with tube furnace and one-dimension combustion experiment system, and the coal characteristic and combustion condition which have influence on the NOx emission in the process of pulverized-coal combustion are studied in this paper.

燃烧温度和燃烧区域的气氛对于NOx的生成有很大的影响。保证煤粉稳定燃烧时的最低的O2浓度就是煤粉低NOx燃烧的最佳O2浓度。

It is found that when the vario EL Ⅲ type ultimate analysis apparatus is used to determine coal sample s,some breakdowns usually appear,becuse the coal sample combusts difficulty in combustion tube and ash affects the complete combustion of coal sample .

用元素分析仪vario ELⅢ分析煤炭样品时，由于煤样在燃烧管中难燃烧，燃烧过程中产生的灰对样品的完全燃烧影响较大，导致在分析过程中仪器常出现一些故障。

This time the fund raising is mainly used to construct two advanced gasification stoves which demand 1,000 tons coal per day to substitute the original fixed bed intermittence gasifier. And simultaneously depending on the rich coal resource of Xinzheng, realize localization of raw material coal, increase 2 set of 180,000 ton/year synthesis nitrogen and 600,000 ton/year large urea productivity, and construct one 240 ton/hour of high temperature and high pressure circulation fluid bed boiler to substitute the low efficiency boiler and 1 60MW afterheat comprehensive utilization unit in order to improve the chemical fertilizer installment power structure.

本次募集资金主要用于建设2台日投煤1000吨先进煤气化炉替代原固定床间歇气化炉，同时依托新郑丰富的煤炭资源，实现原料煤本地化，增加2套18万吨/年合成氨，60万吨/年大颗粒尿素生产能力，同时建设1台240吨/时高温高压循环流化床锅炉，替代低效锅炉和1台60MW余热综合利用机组，改造化肥装置动力结构。

Per the exploration of the fields, we have discovered 7 coal bedrocks, 2 coal fractions located East and 3 coal fractions positioned inside the block.

通过实地勘探，我们发现了七个倾斜煤层，两个在东部的水平煤层和两个在标志之内的水平煤层。

Based on the briquets of the outburst coal seam of typical coal and gas outburst mine of Datong in Songzao Coal and Electricity Company, by means of self-developed triaxial gas-seepage experimental device, the experimental research of permeability of gas-bearing briquets in the complete stress-strain process is performed.

利用典型煤与瓦斯突出矿井松藻煤电集团打通一矿突出煤层原煤制备型煤试件，应用自行研制的含瓦斯煤样三轴瓦斯渗流试验装置，进行含瓦斯型煤试件的全应力－应变过程瓦斯渗透特性变化规律的试验研究。

Combusts with high water content brown coal ,this paper analyzed characteristic of combustion brown coal and the result showed that this brown coal is easy with slagging.

针对上都发电有限责任公司锅炉燃用高水分的褐煤，多次发生炉膛结渣的情况，对该高水分褐煤特性进行了分析，得出该煤种具有中等易结渣倾向。

In this thesis, two chemical structural models were constructed based on several structure parameters derived from FTIR and 13C NMR data, which were processed by curve-fitting and curve-resolved. Modified models were obtained by simulation oftheir molecular vibration spectra using Cerius 4.6/IR module andthe structural parameters from 13C NMR. Potential energy, bondenergy and non-bond energy of the minimum-energy conformations of coal macromolecules were calculated by molecular mechanics calculation and molecular dynamics simulation. These results demonstrate the importance of hydrogen bonding and van der Waals interactions in the formation and stabilization of coal macromolecular structure, and a strongest tendency of hydrogen bonding interactions to increase with the coal molecules but the Coulombs force.

本文运用煤结构的傅立叶红外光谱和固体核磁共振碳谱~(13C NMR测试方法所得的结果，经过谱图分峰、分析，计算出若干表征煤大分子结构参数，并综合前人的经验和共识，利用计算机分子绘图软件系统构建了表征两种褐煤的化学结构模型，在Cerius~2 4.6／IR模块中计算了分子振动红外光谱，同时结合碳谱所计算的分子结构参数拟合、修正了该结构模型，得到了能表征这两种煤样的分子结构模型，作为用分子动力学模拟和量子化学计算的初始结构模型。

Coal is mainly physical adsorption to Cr〓(Ea=9. 245kJ·mol〓). When the concentration of waste water is comparatively low, adsorption rate to Cr〓 reaches 90% or so. The decolor rate is more than 63. 8% when coal depurates Rogor waste water. The COD removal rate is about 12% in purifying life-sewage using coal A.

煤在Cr〓溶液中对Cr〓主要为物理吸附（Ea=9.245kJ·mol〓），当Cr〓浓度较低时其去除率可达90%左右；煤处理乐果废水时脱色率高于63.8%；处理生活废水时COD去除率为12%左右。

Based on PKM gasifier coal lock hopper auto feed coal DCS system program's development and application, PKM Gasifier can auto feed coal and produce gas safely and steady.

通过对加压气化炉煤锁DCS自动加煤系统的开发与应用，来实现PKM气化炉加煤的自动和优化控制，以确保气化炉稳定运

For coal-fired boilers: coal rate of 8 ~ 20%; clear coking coal-fired system 50 ~ 95%; to reduce sulfur emissions 20 ~ 30%; to reduce harmful gas emissions 50 to 95 percent; firepower improve about 20%; lower value of about 14% of spontaneous combustion, and life brought about by the extension of the boiler to reduce the repair cycle of the furnace, flue, heating surface, such as equipment maintenance Qing Jiao role in enhancing the stability of combustion, reducing harmful gas emissions and other benefits.

对于燃煤锅炉：节煤率为8～20％；清除燃煤系统结焦50～95％；降低硫排放20～30％；降低有害气体排放50～95％；火力提高20％左右；降低自燃值14％左右，并带来延长锅炉使用寿命，减少维修周期，对炉膛、烟道、受热面等设备具有清焦保养作用，提高燃烧的稳定性，减少有害气体的排放等效益。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷