Characterization of fly ash directly collected from electrostatic precipitator
Characterization of fly ash directly collected from electrostatic precipitator
复制标题
静电除尘器直接收集的飞灰的表征
DOI：
10.1016/s0008-8846(99)00169-6
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
W. Bang
中科院分区：
文献类型：
--
作者：
Seung Heun Lee;E. Sakai;M. Daimon;W. Bang
F级飞灰从离锅炉逐渐更远的不同料斗获得。检查表明，从最远的料斗收集的灰往往具有更细的颗粒尺寸、更大的密度、更低的碳含量和更高的玻璃含量。当锅炉在全负荷（600 MW）下操作时，与半负荷（300 MW）相比，玻璃含量增加，但布莱恩比表面积和碳含量降低。在40°C下的火山灰反应性与粉煤灰的细度有关，但玻璃含量对反应性没有显著影响。掺1.6%高效减水剂的粉煤灰水泥浆体的表观粘度与含碳量呈负相关。
Class-F fly ash was obtained from different hoppers at progressively farther distances from the boiler. Examinations showed that the ash collected from the farthest hopper tended to have finer particle size, greater density, lower carbon content, and higher glass content. When the boiler is operated at full load (600 MW) the glass content increased compared to half load (300 MW), but the Blaine specific surface area and carbon content decreased. Pozzolanic reactivity at 40°C is related to the fineness of the fly ash but the glass content has no significant influence on reactivity. There was a negative correlation between carbon content and the apparent viscosity of cement paste with fly ashes and 1.6% added superplasticizer.