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Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2010, Vol. 11 Issue (3): 175-180    DOI: 10.1631/jzus.A0900022
Mechanics and Mechanical Engineering     
Development on test equipment of coal slurry mixing tank
Jin WANG, Xu-wen ZHANG, Zhi-ping CHEN, Jian-hua LAN
Institute of Process Equipment, Zhejiang University, Hangzhou 310027, China; Shanghai Research Institute of Chemical Industry, Shanghai 200062, China
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Abstract  A coal slurry mixing tank is a key piece of equipment in the preparation of coal slurry for direct coal liquefaction. It is a gas-liquid-solid three-phase mixing device. Based on the performance of the existing coal slurry mixing equipment, a type of test equipment for horizontal continuous coal slurry preparation was developed, but to this point has limited research results. The test equipment consists of a mixing cylinder, mixer, stirring impeller and other components. Slurry mixing experiments were undertaken using the prototype, testing the performance of the device. A mathematical model was proposed specifically for the operation of a coal slurry mixing tank that is horizontally operated with high slurry concentration and rotary flow. The flow field in the horizontal coal mixing tank was simulated with the computational fluid dynamic (CFD) method. The experimental results match well with the CFD simulation results. Results show that the test device of a coal slurry mixing tank can be used to model the mixing of pulverized coal and the solvent oil. A strong correlation was obtained.

Key wordsGas-liquid-solid mixing      Mixing equipment      Experimental research      Numerical simulation      Direct liquefaction     
Received: 08 January 2009     
CLC:  TH7  
  TM15  
Cite this article:

Jin WANG, Xu-wen ZHANG, Zhi-ping CHEN, Jian-hua LAN. Development on test equipment of coal slurry mixing tank. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2010, 11(3): 175-180.

URL:

http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A0900022     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2010/V11/I3/175

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