4.7 Article

Process enhancement of vibrating classifier for tailings classification-dewatering and industrial application

期刊

POWDER TECHNOLOGY
卷 400, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.powtec.2022.117219

关键词

Classification-dewatering; Vibrating classifier; Elastic screen surface; Tailings sand; Industrial application

资金

  1. China National Funds for Distinguished Young Scientists [52125403]
  2. National Natural Science Foundation of China [U1903132, 51904301]
  3. China Postdoctoral Science Foundation [2020 M671652]
  4. Science and Technology Project of Xuzhou City [KC21291]

向作者/读者索取更多资源

This study proposes an elastic screen surface for improving the classification-dewatering effect of a vibrating classifier. The surface kinematics of the elastic screen and the random elastic deformation of the screen's apertures were found to play a positive role in classification-dewatering. By adjusting the exciting parameters and tailings concentration, optimal classification and dewatering efficiencies can be achieved.
To reduce environmental pollution and wastage of resources and to promote the large-scale utilization of tailings, classification-dewatering is a key technical challenge. The vibrating classifier efficiently separates minerals according to particle size, while the vibrating energy drives water out. However, the screen apertures of the vibrating classifier can be blocked easily, resulting in a poor classification-dewatering effect. In this study, an elastic screen surface for classification-dewatering is proposed to replace the rigid screen surface of a traditional vibrating classifier, eliminating the problems of easy plugging and low efficiency. The surface kinematics of the elastic screen under simple harmonic excitation is studied. The output energy of the screen surface increased by 10% compared with the input energy of the excitation source. In addition, the random elastic deformation of the screen's apertures contributed to the rupturing of water film in apertures. The effect of exciting parameters and concentrations of tailings on the classification-dewatering is also investigated. The optimum values for excitation force, working frequency, and the concentration of tailings are 9.66 kN, 15.62 Hz, and 35%, respectively. Moreover, the classification and dewatering efficiencies are 80% and 53%, respectively. Industrial production shows that coarse tailing sand exhibits a moisture content of 18%, while the fine particles are used for paste filling. These results provide support to the comprehensive utilization of tailings and promote green and safe production in mines (c) 2022 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