Effect of Particle Size on Flow Mode and Flow Characteristics of Pulverized Coal

DOI Web Site 被引用文献1件 参考文献14件
  • Lu Haifeng
    Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of Education, Institute of Clean Coal Technology, East China University of Science and Technology, China
  • Guo Xiaolei
    Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of Education, Institute of Clean Coal Technology, East China University of Science and Technology, China
  • Liu Yi
    Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of Education, Institute of Clean Coal Technology, East China University of Science and Technology, China
  • Gong Xin
    Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of Education, Institute of Clean Coal Technology, East China University of Science and Technology, China

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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 μm 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.

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