助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   可燃基 的翻译结果: 查询用时:0.573秒
图标索引 在分类学科中查询
所有学科
环境科学与资源利用
更多类别查询

图标索引 历史查询
 

可燃基
相关语句
  combustible basis
     The accuracy of this model is validated through testing coal quality parameter,combustible basis volatile flux V daf ,operational characteristic parameter and the excess air coefficient of furnace outlet α 1,which provides basis for energy conservation and consumption drop.
     并分别以煤质特性参数可燃基挥发分Vdaf和运行特性参数炉膛出口过量空气系数αl 为例 ,验证了模型的精确性 ,为节能降耗提供依据
短句来源
  ash-free basis
     It is also found that there is an approximate linear correlation between the yields of gas and tar of coal and the volatile matter of coal on dry, ash-free basis.
     煤的干馏气和焦油产率与煤中可燃基挥发分之间有近似的线性关系。
短句来源
  “可燃基”译为未确定词的双语例句
     The chlorine content in the product was up to 37.2% (d. a. f).
     所得氯化煤的氯含量最高达到37.2%(可燃基)。
短句来源
     The results show that the char produced at 850℃ from Tangcun coal containing C 79.8%,H 4.99%(daf) and active components >90% has excellent reactivity.
     试验表明,由含C79.81%,H4.99%(可燃基)和活性组份>90%的唐村煤于850℃下炼制的焦炭具有极好的反应性。
短句来源
     The research shows: (1) Coal metamorphism controls the adsorptive capacity. As R_(max) increases from 0.3% to 4.25%, the volume of Langmuir increases from 11.25 to 47.16 cm~3/g.
     研究表明 :(1 )煤变质对煤吸附能力具有控制作用 ,反射率从 0 .3%~ 4 .2 5 % ,可燃基的Langmuir体积是 1 1 .2 5~ 4 7.1 6cm3 / g ;
短句来源
     volatile release plays an important role in heatrelease which should be paid enough attention to.
     挥发分是煤中可燃基的重要组成部分,挥发分的释放规律是燃料燃烧热量释放规律的重要方面。
短句来源
     As for example, when brown coals from Shulan are thermally decomposed in this radiant-type oven at 850℃, the following products are obtained, viz. coal gas (heating value 4000 kcal/M~3), 570 M~3/t. coal (d.a.f.)
     例如舒兰褐煤在辐射炉中850℃下热分解,产品煤气(4000大卡/米~3)为570米~3/吨煤(可燃基)、烯烃为30米~3/吨煤、粗苯为煤的2.7%、焦油为煤的8%.
短句来源
更多       
  相似匹配句对
     2. basal cell;
     细胞;
短句来源
     The chlorine content in the product was up to 37.2% (d. a. f).
     所得氯化煤的氯含量最高达到37.2%(可燃)。
短句来源
     ON THE BASE OF A ROOT SYSTEM
     关于根系的
短句来源
     AN INCINERATOR FOR COMBUSTABLE RADWASTE
     放射性可燃废物焚烧炉
短句来源
     Combustible Ice and Inclusion Compound
     可燃“冰”与包合物
短句来源
查询“可燃基”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  ash-free basis
The inclusion of market refuse and frequent turning generally increased the cation exchange capacity of compost on an ash-free basis.
      
On ash-free basis values are: 5,959±57, 4,560±71 and 4,325±32 cal.g-1 ash-free d.w., respectively.
      
The dry, ash-free basis volatile matter (Vr) and caking index (G(RI)) were chosen by means of correlation analysis and stepwise discriminatory analysis as major indices of a new classification.
      
Although carbon mineralization rates declined in smaller particle size fractions of forest litter, this trend largely disappeared when results were calculated on an ash-free basis.
      
It is worth noting that for woody biomass an average value of 19.9 GJ/tonne on a dry, ash-free basis can be used for most routine calculations.
      
更多          


A new and prospective process for coal carbonization has been described. Radiant heat is used as the heating source to achieve high speed thermal decomposition of coal at high temperature.Products obtained by this process are more valuable than that of the ordinary carbonization. As for example, when brown coals from Shulan are thermally decomposed in this radiant-type oven at 850℃, the following products are obtained, viz. coal gas (heating value 4000 kcal/M~3), 570 M~3/t. coal (d.a.f.); unsaturated hydrocarbons...

A new and prospective process for coal carbonization has been described. Radiant heat is used as the heating source to achieve high speed thermal decomposition of coal at high temperature.Products obtained by this process are more valuable than that of the ordinary carbonization. As for example, when brown coals from Shulan are thermally decomposed in this radiant-type oven at 850℃, the following products are obtained, viz. coal gas (heating value 4000 kcal/M~3), 570 M~3/t. coal (d.a.f.); unsaturated hydrocarbons in gas, 30 M~3/t. coal (d.a.f.); crude benzol 2.7%, and coal tar 8% of coal (d.a.f.). In the crude benzol there are more than 90% aromatics, in which the ratio of benzene and toluene is 3:1. The conversion of coal into volatile matter is 8% more than the volatile matter in the coal used, and in the coke breeze the volatile matter remained is still 10% or more. The reactivity of the coke breeze is very high and may be used for gasification or as fuel.When the stream of coal particles passes through the radiant-type oven, its temperature can be raised promptly to about 900℃ in a time within two seconds. For every M~2 of heating surface, 100 kg of coal particles may be treated per one hour in this type of oven.

本文实验结果证明,利用辐射加热进行煤的高温高速热分解,是一项有发展前途的新工艺。它能显著地提高煤热分解化学产品的质量与收率.例如舒兰褐煤在辐射炉中850℃下热分解,产品煤气(4000大卡/米~3)为570米~3/吨煤(可燃基)、烯烃为30米~3/吨煤、粗苯为煤的2.7%、焦油为煤的8%.粗苯中含芳烃90%以上,其中苯与甲苯比为3∶1.这些产品比高温炼焦的化学产品都有成倍的增长.煤的热分解转化率较原煤的V~Γ尚高出8%,焦渣的V~Γ仍有10%,故热分解的挥发产物多、焦渣少.焦渣的活性很强,可作气化原料或燃料.煤料在辐射炉中的升温速度最高可达到500℃/秒.辐射炉生产能力高,每平方米的加热面积约可处理煤料100公斤/时。

The process of chlorination of brown coal in aqueous medium was investigated by chemical and petrographical methods. In this article, the reaction and chemical composition of the chlorinated coal was studied. When the reaction proceeded between brown coal and chlorine gas in aqueous medium at temperatures from 10° to 100℃, the chlorine and oxygen content in the products increased while the carbon and hydrogen decreased. In addition, hydrogen chloride was evolved and petrographical properties of coal changed...

The process of chlorination of brown coal in aqueous medium was investigated by chemical and petrographical methods. In this article, the reaction and chemical composition of the chlorinated coal was studied. When the reaction proceeded between brown coal and chlorine gas in aqueous medium at temperatures from 10° to 100℃, the chlorine and oxygen content in the products increased while the carbon and hydrogen decreased. In addition, hydrogen chloride was evolved and petrographical properties of coal changed progressively. The chlorine content in the product was up to 37.2% (d. a. f). Many active functional groups were formed in chlorination and new chemical properties were obtained in the chlorinated products.

用化学及煤岩学方法研究了在水介质中褐煤的氯化过程,提出了煤氯化的特点、反应机理和氯化煤的化学组成。于10—100℃温度范围内,在水、煤悬浮液中褐煤和氯气反应将使煤的氯、氧含量增加,碳、氢含量减少;并放出氯化氢;煤的岩相性质也逐渐变化。所得氯化煤的氯含量最高达到37.2%(可燃基)。由于氯化煤古有大量活性官能团,所以它具有一系列新的化学性质。

Tangential firing has found wide application(?)in jet pulverized fuel burners both in this country and abroad. An outstanding troublesome problem usually found in the operation of such a burner is the deflection of the gas flow causing slagging of the water tube thus endangering the operational safety and boiler economy. An important factor which causes deflection of the gas-flow is the ratio of the secondary to primary air-flow momentum.Through theoretical deduction we can arrive at the conclusion: the ratio...

Tangential firing has found wide application(?)in jet pulverized fuel burners both in this country and abroad. An outstanding troublesome problem usually found in the operation of such a burner is the deflection of the gas flow causing slagging of the water tube thus endangering the operational safety and boiler economy. An important factor which causes deflection of the gas-flow is the ratio of the secondary to primary air-flow momentum.Through theoretical deduction we can arrive at the conclusion: the ratio of the secondary to primary air-flow momentums in the jet pulverized fuel burner is completely determined by the choice of the velocities and the flow-ratio of the secondary and the primary air at the burner exit.Theoretical calculation as well as statistical data enable us to find the appro ximate relation that exist between the momentum ratio of the secondary to the primary air flows and the volatile matter V(?) on the combustible basis of the fuel. The momentum ratio decreases as V(?) increases.Both theoretical deduction and test data, have shown that the decrease of the secondary to primary air-flow ratio (I_(2k)/I_(1k)) is one of the important conditions for reducing air-flow deflection and tube slagging.Therefore, in the design and operation of the corner jet pulverized fuel burner, it is reasonable(?)to select the lowest possible value of I_(2k)/I_(1k) that is compatible with the combustion economy considerations.

直流煤粉燃烧器切向燃烧方式已在国内外得到广泛采用.但运行中的一个突出问题是燃烧气流偏斜,冲撞水冷壁而引起结渣,这将直接危及锅炉的安全经济运行.造成燃烧气流流动方向偏斜的一个重要因素是整组燃烧器二、一次风气流的动量比值.经过理论推导得到,直流煤分燃烧器二、一次风气流动量比的数值完全决定于燃烧器出口二、一次风速及风比的选择.通过大量计算和统计找出了二、一次风气流动量比与燃煤可燃基挥发分V~r间的近似关系.随着V~r的增加,动量比减小.根据理论和试验资料证实,降低二次风气流与一次风气流的动量比(I_(2k)/I_(1k)),是改善气流偏斜,减少或消除结渣的重要条件之一.因而对于角置直流煤粉燃烧器的设计和运行来说,在燃烧经济性允许的条件下,选用可能低的动量比(I_(2k)/I_(1k))是合理的.

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关可燃基的内容
在知识搜索中查有关可燃基的内容
在数字搜索中查有关可燃基的内容
在概念知识元中查有关可燃基的内容
在学术趋势中查有关可燃基的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社