4.7 Article

A method for humidifying fine particles of coking coal: Agglomeration characteristics and dust dynamics analysis

期刊

POWDER TECHNOLOGY
卷 394, 期 -, 页码 1039-1049

出版社

ELSEVIER
DOI: 10.1016/j.powtec.2021.09.013

关键词

Coking coal; Fine particles; Agglomeration; Soap solution

向作者/读者索取更多资源

The chemical agglomeration technology effectively removes fine particles during coking coal loading and unloading, reducing the average concentration in the end. The soap solution has a strong agglomeration effect on particles smaller than 0.5 mm, increasing the coating efficiency of fine particles.
The chemical agglomeration technology can effectively remove fine particles during coking coal loading and unloading. Aiming at the traditional agglomerator has the high price and secondary pollution problems, the new method of viscosifying fine particles was established. The fine particles were contacted with the soap solution through the cyclone circumfluence to increase viscosifying and agglomerate. The regulation and control of uniform humidification of whole particles were studied, and the relations among humidification, agglomeration, dust suppression and agglomeration conditions of fine particles were discussed. By establishing the agglomeration model and mechanical model, the influence of agglomeration on the force and velocity distribution of particles was analyzed based on CFD. The results showed that the soap solution has a strong effect on agglomeration of particle size less than 0.5 mm. The adsorption and flocculation of the polymer chain in the soap can promote the agglomeration of the fine particles. In the area of vortex formed by swirling air, with the mass addition ratio of soap powder increases from 5% to 15%, the coating efficiency of fine particles increases from 82% to 96%. The agglomeration results show that the average concentration of the fine particles decreases by nearly 20% finally. (c) 2021 Elsevier B.V. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据