查询词典 coal

The coal feeder is favorable to utilizing coal of poor quality in coal burning boiler and can realize the reaonable laminar layout of poor coal on grate.

该装置更有利于对煤质较差的燃煤在燃煤锅炉上的利用，可实现对差煤质的燃煤，在炉排上进行合理的分层布置。

According to the principle of mechanics, with the consideration of the gravities of coal dust particles and liquid droplets, coal dust size and humidity, under the condition of force balance when the coal dust was raised, the authors obtained a theoretical formula for the threshold velocity of coal dust with humidity.

作者根据力学的基本原理，考虑颗粒和液滴重力、煤粉颗粒尺寸和湿度的影响，利用煤粉颗粒起动时的力平衡条件，推导出在风的作用下，具有一定湿度的煤粉颗粒开始扬起的起动风速的理论表达式。

All the phenomena of experiment were analysed. The results show that under the condition of hot-blast air and oxygen enrichment, the combustion rate of single coal and mixed coal is increased, but the bituminous coal is better than anthracite coal.

在热风富氧的条件下，单种煤和混合煤的燃烧率随富氧率的增加都有提高，而且无烟煤燃烧率的提高幅度略高于烟煤。

In view of the fact that the products of coal spontaneous combustion could obtain the action process and mechanism for coal spontaneous combustion, twelve pieces of coal samples at different layers and workfaces in six coal minings of Shendong mining area were analyzed by infrared spectrum.

针对煤氧化自燃过程生成的气体产物能够判断煤自燃的反应过程和机理以及在不同温度下生成的标志性气体可以判断煤自燃的严重程度的问题，采用红外光谱实验手段对神东矿区6个煤矿不同层位和不同工作面的12个煤样进行了研究。

The study area covers 4 mines producing sclerotia algal type coal in Hunyuan,Shanxi Province.the study combined both coal petrologic and geochemical methods indicated that the sclerotia algal coal is physically and chemically different from humic coal apparently,the forming environment is mainly controlled by pH,Eh and organic content,in which Pila Alginite and Reinschia Alginite are highly dominated.

运用煤岩学和地球化学方法，对中国山西浑源等 4个典型的菌藻类煤进行了综合研究，结果表明，菌藻类煤在物理、化学组成和特性上与腐植煤有明显的区别；其形成环境主要受 p H、Eh值和有机质含量的制约，其中皮拉藻和轮奇藻具有含量高、生存时间长的特征；并在此基础上对菌藻类煤作了成因分类

The coal tar pitch powder was used with each of 22 kinds of dispersants prepared coal tar pitch water slurry,and 6 kinds of dispersants were selected to prepare coal tar pitch water slurry with the high temperature coal tar pitch powder which has a softening point of 105℃.

采用冷冻粉碎的方法将软化点为90℃的中温煤沥青制得粒度≤200目的煤沥青粉后，再与22种分散剂制备煤沥青水浆，从中筛选出6种成浆性好的分散剂再与软化点为105℃的高温煤沥青粉制备煤沥青水浆，结果表明中温煤沥青粉比高温煤沥青粉更易制得稳定性好的煤沥青水浆。

Keywords coal;the industrial chain;extend;clean coal;washes out;the water coal tar;underground gasification of coal bed;coking;the electric power;liquefaction

Article From 山东科技大学；工业工程硕士论文 2006年度煤炭；产业链；延伸；洁净煤；洗选；水煤浆；煤层地下气化；焦化；电力；液化

The effects of operation condition, such as type of coal, coal feed rate, steam/coal ratio and air/coal ratio on gas composition, calorific value, carbon conversion and gasification efficiency are analyzed.

以空气和水蒸气为气化剂，在循环流化床煤气化热态试验台上进行了神华煤、龙口煤和大同煤的气化试验，研究了煤种、加煤速率、空气煤比、蒸汽煤比对气化过程的影响。

Experiments on gasification of Shenhua, Longkou and Datong coals in the rig with the agents of air and steam at atmospheric pressure and different operation conditions were carried out. The effects of operation condition, such as type of coal, coal feed rate, steam/coal ratio and air/coal ratio on gas composition, calorific value, carbon conversion and gasification efficiency are analyzed.

以空气和水蒸气为气化剂，在循环流化床煤气化热态试验台上进行了神华煤、龙口煤和大同煤的气化试验，研究了煤种、加煤速率、空气煤比、蒸汽煤比对气化过程的影响。

Strong soda lye was added into high calcium pulverized coal ash to prepare improved pulverized coal ash, the result from measurement shows that the bulk density, specific surface area, granulation appearance of pulverized coal ash after improvement were substantially better than that of coal ash before improvement.

摘 要：在高钙粉煤灰中加入强碱液制备了改性粉煤灰，测定结果表明，改性后粉煤灰的堆积密度、比表面积、颗粒形貌等明显优于改性前。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。