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Vibratory separation of powder mixtures using electrification characteristics

利用带电特性振动分离粉末混合物

基本信息

批准号：
16560218
负责人：
SAEKI Masato
金额：
$ 1.47万
依托单位：
Niigata Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2005
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16560218/
关键词：
Frictional vibration Electrostatic separation Vibratory conveyance Powder Recycling Corona charging

项目摘要

The high quantity of plastic waste produced has resulted in a lack of suitable sites for landfilling. In view of the environmental problems, it is desirable that the performance of plastic recycling systems is improved so as to reduce disposal.Plastic products usually consist of different materials such as nonferrous metal and plastic. Therefore, the separation is one of the most important processes in a plastics recycling system. There are many separation methods of nonferrous metal -plastic mixture such as density based separation and electric conductivity-based separation. Although many studies have demonstrated the effectiveness of the separators, these investigations have not yet been completed. The further development of a novel separation method with high separation efficiency is required.This paper presents the results of experimental and analytical studies of the performance of a novel electrostatic separator. The separator consists of a vibratory conveyor equipped with two plate electrodes. The mixture is charged by following methods : ion bombardment (corona), induction and triboelectric charging. The separation tests were performed on a sample containing 50% polyvinylchloride (PVC) and 50% copper. This study was conducted to understand the effects of the various parameters on the separation efficiency, in order to obtain the optimum operating conditions.

产生的大量塑料废物导致缺乏合适的垃圾填埋场。鉴于环境问题，期望改善塑料回收系统的性能以减少废弃。塑料产品通常由不同材料组成，例如有色金属和塑料。因此，分离是塑料回收系统中最重要的过程之一。有色金属-塑料混合物的分离方法有多种，如基于密度的分离和基于电导率的分离。尽管许多研究已经证明了分离器的有效性，但这些研究尚未完成。需要进一步开发一种具有高分离效率的新型分离方法。本文介绍了新型静电分离器性能的实验和分析研究结果。该分离器由配备两个板电极的振动输送机组成。通过以下方法使混合物带电：离子轰击（电晕）、感应和摩擦起电。分离测试是在含有 50% 聚氯乙烯 (PVC) 和 50% 铜的样品上进行的。本研究旨在了解各种参数对分离效率的影响，以获得最佳操作条件。