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1)  gas flow
煤气流
1.
The proper and optimum distribution of gas flow should be provided.
利用数值模拟对煤气流的流场及温度场进行了计算。
2.
2 bell less(series wound tank)blast furnace of WISCO, according to analysed the reason about change of gas flow and gas utilization poly angle central coke charging, Under burden distribution and so on Some results have been obtained as following: under burden condition of No.
在武钢 2号高炉进行了串罐无料钟炉顶布料实践 ,分析了多角度中心加焦、折返布矿、拓宽布料区间等布料方式引起煤气流变化及改变煤气利用的原因 ,在 2号高炉的原燃料条件下 ,采用折返布矿和拓宽布料区间的布料模式取得了较好的技术经济指标 ,布料模式的摸索还须继续 ;增加矿石层厚度或调整小粒度矿落点位置 ,可增大煤气阻力 ,有利于增加间接还原 ,提高煤气利用率 ;完善各种检测设备 ,开发和应用高精度布料技术 ,丰富高炉专家系统 ,可进一步优化高炉操
3.
The mathematical model has been developed for the estimation of the gas flow distribution in the blast furnace throat based on the back-propagation algorithm of artificial neural network.
该数学模型在攀钢4高炉VAX机上在线运行,能连续推测炉喉煤气流分布,其命中率达到82%,有效地指导了高炉操作。
2)  pulverized coal air flow
煤粉气流
1.
A more accurate one-dimensional turbulent ignition model of pulverized coal air flow in a tube was established on the basis of the one-dimensional plane laminar flow ignition model.
在一维平面层流煤粉气流着火的数学模型的基础上,发展了一种更加逼近工程实际 的一维平面紊流煤粉气流着火模型。
2.
Analysed the various methods of oil-free ignition that are used in pulverized coal fired boilers nowadays in the world, and for the first time it brings out the idea that the pulverized coal air flow might be ignited by high-temperature air.
分析了当今国内外电站煤粉锅炉的无油点火技术,提出了利用高温空气点燃煤粉气流的设想。
3.
In this paper,a one-dimensional turbulent ignition model of the pulverized coal air flow in a bube is established on the basis of the one-dimensional plane laminar flow ignition model.
在一维平面层流煤粉气流着火模型的基础上,提出了一种一维平面紊流煤粉气流的着火模型。
3)  Gas flux
煤气流量
1.
Moreover, the virtual instrument is applied to the gas flux measuring.
为提高仪表的校准效率,减少测量中的误差,基于典型的网络测量系统,设计了一种虚拟仪表,具有在线监测、故障检测、远程校准等功能,描述了其结构与主要模块的设计方法,并实现了在煤气流量测量中的应用。
2.
A new model of computation and measurement about gas flux in the pipeline at different work cases based on vapour pressure equation is established.
基于水的蒸汽压方程下 ,建立工况下管道煤气流量新的计量模型 ,由该计量模型的应用可知 ,该模型中不再要求建立管道煤气中不同温度下所对应的水蒸汽饱和压力数据库 ,从而可以大大简化管道煤气流量计量软件 ,在流量计设计范围内可以快速准确地实现管道煤气流量实时在线计
4)  gas fluid in blast furnace
高炉煤气流
5)  gas flow distribution
煤气流分布
1.
It is considered that it can make blast furnace gas flow distribution more reasonable, eliminate sudden hanging and frequent slip and raise all technical indexes of furnace.
对邯钢首次在4#高炉炉身上部及炉喉进行喷补造衬作了分析,认为喷补造衬后可以使高炉煤气流分布趋于合理,消除突然悬料和频繁崩料的现象,提高高炉的各项技术指标,具有推广价值。
2.
The target of blast furnace operation mainly is to achieve proper and optimum gas flow distribution.
高炉操作也主要是围绕获得合理、适宜的煤气流分布来进行的,另一方面,煤气流分布也是高炉操作者判断炉况的重要依据。
3.
3 1 750 m3 BF, such as strengthening raw material and fuel management, controlling optimum gas flow distribution and intensifying daily operation management; using high blast temperature, high top pressure and low oxygen enrichment, decreasing the silicon content deviation in pig iron and improving slag performance.
通过加强原燃料管理,控制合理的煤气流分布,强化日常操作管理以及使用高风温、高顶压、低富氧,降低生铁含硅偏差,改善炉渣性能等一系列措施,济钢3#1750m3高炉在保持平均利用系数2。
6)  coal seam methane leakage
煤层气越流
补充资料:流化床煤气化
分子式:
CAS号:

性质:煤在流化床中进行气化的方法。采用细粒度煤(小于10mm)为原料,吹入气化炉内的气化剂为富氧空气和水蒸气,气流速度高到使炉内煤粒悬浮,处于流化状态,进行煤与气化剂的反应而制得煤气。解决了固定床气化需要块煤的限制。缺点是碳转化率较低,热效率不高,该法适用于气化活性较高的煤种,如褐煤。   

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