文献类型：期刊文献

英文题名：Experimental study on aerated discharge of pulverized coal

作者：Lu, Haifeng[1];Guo, Xiaolei[1];Gong, Xin[1];Cong, Xingliang[1];Liu, Kai[1];Qi, Haifeng[1]

机构：[1]E China Univ Sci & Technol, Minist Educ, Key Lab Coal Gasificat, Inst Clean Coal Technol, Shanghai 200237, Peoples R China

年份：2012

卷号：71

起止页码：438

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20120614750930);WOS:【SCI-EXPANDED(收录号:WOS:000300235600044)】；

基金：This work was supported by the National Natural Science Foundation of China (21006027) and Shanghai Educational Development Foundation.

语种：英文

外文关键词：Powders; Agglomeration; Fluidization; Aeration; Hopper discharge

摘要：Pulverized coal is important for gasification to convert carbonaceous fuel to gaseous products with a usable heating value; it is cohesive with a poor flowability, typical of Group C powders. The fluidization behaviors of pulverized coal in a fluidization column and in a Perspex hopper were investigated. The pulverized coal was extremely hard to be fluidized and its experimental incipient fluidizing velocity was much larger than expected. The discharge of pulverized coal from a carbon steel hopper under several aeration rates was studied. Four flow regions were developed, and the major phenomena that occurred during the discharge were analyzed. The mechanism of aerated discharge was probably the integration of various effects, all of which were confirmed by the experimental data. (C) 2011 Elsevier Ltd. All rights reserved.