刮板运动对空气致密介质流化床分离性能的影响

Q1 Earth and Planetary Sciences

International Journal of Mineral Processing Pub Date : 2017-08-10 DOI:10.1016/j.minpro.2017.05.010

Nianxin Zhou , Zhenfu Luo , Wei Huang , Yuemin Zhao

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引用次数: 4

摘要

本文对刮板运动对空气致密介质流化床流化的影响进行了实验研究。当刮板速度在0 ~ 0.5 m/s范围内变化时，最大床层压降约为3%。最小流化速度Umf随刮板转速的增加而减小。同时，床层密度仅下降3.7%，密度标准差明显减小，这主要是由于介质水平运动造成的。分离试验表明，刮刀速度在0.1 m/s ~ 0.3 m/s之间为最适宜，刮刀以适当的速度移动是合理的，可获得较好的分离效果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Effect of scraper movement on the separation performance of air dense medium fluidized bed

Experimental studies on the influence of scraper movement on the fluidization of air dense-medium fluidized bed (ADMFB) have been conducted. The maximum bed pressure drop is about 3% when the scraper speed changes from 0 to 0.5 m/s. The minimum fluidized velocity U_mf decreases as the scraper speed increases. At the same time, the bed density only declines by 3.7%, and the density standard deviation decreases significantly which is mainly caused by the horizontal motion of the medium. The separation tests indicated that the most appropriate scraper speed is between 0.1 m/s and 0.3 m/s and it was reasonable to move the scraper at the appropriate rate to get the better separation performance.

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来源期刊

International Journal of Mineral Processing 工程技术-工程：化工

CiteScore

3.02

自引率

0.00%

发文量

审稿时长

11.1 months

期刊介绍： International Journal of Mineral Processing has been discontinued as of the end of 2017, due to the merger with Minerals Engineering. The International Journal of Mineral Processing covers aspects of the processing of mineral resources such as: Metallic and non-metallic ores, coals, and secondary resources. Topics dealt with include: Geometallurgy, comminution, sizing, classification (in air and water), gravity concentration, flotation, electric and magnetic separation, thickening, filtering, drying, and (bio)hydrometallurgy (when applied to low-grade raw materials), control and automation, waste treatment and disposal. In addition to research papers, the journal publishes review articles, technical notes, and letters to the editor..