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Journal of Zhejiang University SCIENCE A 2010 Vol.11 No.3 P.175-180


Development on test equipment of coal slurry mixing tank

Author(s):  Jin WANG, Xu-wen ZHANG, Zhi-ping CHEN, Jian-hua LAN

Affiliation(s):  Institute of Process Equipment, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   wjzju8606@126.com, zhiping@zju.edu.cn

Key Words:  Gas-liquid-solid mixing, Mixing equipment, Experimental research, Numerical simulation, Direct liquefaction

Jin WANG, Xu-wen ZHANG, Zhi-ping CHEN, Jian-hua LAN. Development on test equipment of coal slurry mixing tank[J]. Journal of Zhejiang University Science A, 2010, 11(3): 175-180.

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A1 - Jin WANG
A1 - Xu-wen ZHANG
A1 - Zhi-ping CHEN
A1 - Jian-hua LAN
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A0900022

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.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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