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1)  fly ash containing ZnO
含ZnO飞灰
1.
Study of performance of sulfate aluminum cement improved by municipal solid waste incineration fly ash containing ZnO;
采用含ZnO飞灰改善硫铝酸盐水泥性能的研究
2)  unburned carbon content
飞灰含碳量
1.
A new algorithm for forecasting the unburned carbon content in the fly ash from coal-fired utility boilers based on the support vector machine (SVM) method is presented.
将支持向量机方法引入燃煤电站锅炉飞灰含碳量预测领域。
2.
Unburned carbon content in the fly ash is a main factor that has great impacts on the boiler efficiency.
飞灰含碳量是影响锅炉热效率的一个重要因素,影响燃煤锅炉飞灰含碳量的因素多而且复杂,对锅炉飞灰含碳量特性进行建模预测并结合优化算法实现燃烧优化是降低锅炉飞灰含碳量的有效方法。
3)  carbon content in fly ash
飞灰含碳量
1.
Analysis of high carbon content in fly ash and optimization in 300MW power plant;
300MW电站锅炉飞灰含碳量过高的分析及优化
2.
Cause analysis of the large carbon content in fly ash of 440 t/h CFB boiler in Lianzhou Power Plant;
连州发电厂440t/h循环流化床锅炉飞灰含碳量偏大原因分析
3.
Carbon content in fly ash is an important index reflecting burning efficiency of coal-fired boiler in power plant,real time measurement of the carbon content in fly ash helps to adjust air-coal ratio accurately and improve the control level of burning.
锅炉飞灰含碳量是反映火力发电厂燃煤锅炉燃烧效率的一项重要指标,实时检测飞灰含碳量将有利于指导运行正确调整风煤比,提高锅炉燃烧控制水平;合理控制飞灰含碳量的指标,有利于降低发电成本,提高机组运行的经济性。
4)  carbon content of fly ash
飞灰含碳量
1.
Meanwhile, the on-line monitoring of carbon content of fly ash may be realized, the optimization adjustment of combustion may be carried out in time, with the operation economics of unit improved.
介绍了烧失法在线飞灰测碳装置系统的结构、测量原理,该装置解决了采用微波技术的飞灰测碳装置受煤质变化影响较大的问题,同时也可以实现在线飞灰含碳量的监测,可及时进行燃烧优化调整,提高了机组运行的经济性。
2.
The major factors influencing the carbon content of fly ash are: coal index,coal structure and coke reaction activity,fed-coal particle diameter and structure of the circulating fluidized bed as well as other operational parameters etc.
循环流化床燃烧技术因其众多的优点得到广泛应用,但是在运行中普遍存在着飞灰含碳量远远高于预期的问题。
3.
23, 24 boiler were putted into operation, the system influence on the carbon content of fly ash, output of boiler, temperature of bed are analyzed, some methods that improve the equipment and steady operation are as well as proposed.
以河北华电石家庄热电有限公司八期23、24号炉飞灰再循环系统投入后的运行数据为依据,从运行角度分析了飞灰再循环系统投入对锅炉飞灰含碳量、循环物料量、锅炉出力、床温等参数的影响,并提出了一些改进设备、提高系统稳定运行的方法。
5)  unburned carbon
飞灰含碳量
1.
Soft-sensing modeling of the unburned carbon in fly ash based on KPCA-SVM for power station boilers;
基于核主元分析和支持向量机的电站锅炉飞灰含碳量软测量建模
2.
On some variables(such as NO_x emission,unburned carbon in fly ash,radiant energy and 3-D temperature distribution in the furnace est.
在一台采用三维温度场可视化监控系统的300 MW锅炉上进行了NOx排放规律的试验研究,得到锅炉负荷、过量空气系数、燃烧器摆角、燃尽风量、二次风配风方式和层间燃料分配等与NOx排放、飞灰含碳量、炉膛总辐射能及炉内三维温度分布的关系。
3.
The unburned carbon content in the fly ash of a 200 MW unit coal burning boiler at Fuxin Power Plant is tested and data specimens have been gained.
针对阜新电厂200 MW机组燃煤锅炉进行了多工况热态测试,获得了飞灰含碳量的现场数据样本,运用Back Propagation(BP)神经网络和Levenberg-Marquardt(LM)算法建立了电站锅炉飞灰含碳量的软测量模型,并构造了飞灰含碳量的测量系统。
6)  fly ash carbon content
飞灰含碳量
1.
The model has a definite practical engineering value for the online measurement of fly ash carbon content.
模型对于在线测量飞灰含碳量有一定的工程实用
补充资料:飞灰
分子式:
CAS号:

性质:又称粉煤灰(coal ash)。由燃料(主要是煤)燃烧过程中排出的微小灰粒。其粒径一般在1~100μm之间。飞灰是煤粉在高温(1300~1500℃)中燃烧、冷却而形成。大部分呈球状,表面光滑,微孔较小。部分颗粒因熔融时粘连,表面粗糙、棱角多呈蜂窝状组合粒子。飞灰主要物相是玻璃体,占50%~80%;所含晶体矿物有莫来石、α-石英、方解石、钙长石、硅酸钙、赤铁矿和磁铁矿等,还有少量未燃的碳。飞灰的排放量与燃煤中的灰分含量有关。我国燃烧1t煤约产生250~300kg粉煤灰,大量粉煤灰进入大气会造成污染。目前主要用除尘器进行治理。粉煤灰主要含二氧化硅(SiO2)、氧化铝(Al2O3)和氧化铁(Fe2O3)等,已广泛用于制水泥及制各种轻质建材。此外还可利用粉煤灰作漂珠及作为肥料和微量复合肥料。在工业方面可从粉煤灰中回收铁、碳、铜、锗和钪等多种物质。

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