文献类型：期刊文献

英文题名：Effect of Particle Size on Flow Mode and Flow Characteristics of Pulverized Coal

作者：Lu, Haifeng[1];Guo, Xiaolei[1];Liu, Yi[1];Gong, Xin[1]

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

年份：2015

期号：32

起止页码：143

外文期刊名：KONA POWDER AND PARTICLE JOURNAL

收录：;EI(收录号：20150500464765);WOS:【SCI-EXPANDED(收录号:WOS:000352650800011)】；

基金：This work was supported by the National Natural Science Foundation of China (21006027, 21206041), the Fundamental Research Funds for the Central Universities (WB1214012) and China Postdoctoral Science Foundation funded project (2012M520847). Especially, the authors thank the anonymous reviewers for their helpful suggestions on the quality improvement of this article.

语种：英文

外文关键词：flow behaviors; pulverized coal; particle size; flow mode; predominant force

摘要：This paper reports on an extensive experimental campaign aimed at studying on effect of particle size and flow mode on the flow characteristics of pulverized coal. A series of pulverized coal changing the mean particle size in the range 18-224 mu m were used as the experimental materials and three flow modes including gravity-induced flow, downwards and upwards mechanically forced flow were investigated. The gravity-induced flow was characterized by discharging pulverized coal from the Perspex hopper gravitationally, while the mechanically forced flow was performed inside a cylindrical vessel where the blade rotated and moved downwards or upwards to displace the pulverized coal. Furthermore, the relationship between different flow modes was discussed and the force analysis was used to reveal the flow mechanisms of gravity-induced flow