The eddy current separator is the key equipment used for the separation and enrichment of non-ferrous metals from the solid waste. The customization and universality requirements for eddy current separators have been improved with the increasingly strict environmental protection requirements in various industries and the pursuit of higher economic benefits by enterprises. The low separation efficiency of the small-sized non-ferrous metals and the difficulty in separating between non-ferrous metals are two urgent problems that limit the development of the eddy current separation. The separator structures design, the factors regulation and the core component magnetic roller optimization are the keys to solve problems. Vertical and horizontal eddy current separators are the two main types of permanent magnet eddy current separators in practical applications and reported studies. However, the study and production cost of the eddy current separator are high, and there are few reports on the separator structures in existing studies. There is also a lack of comparative analysis of different applicable conditions for eddy current separators and optimization design of the magnetic roller. This study compared and analyzed the effects of different factors on the vertical and horizontal eddy current separation efficiency, and clarified the advantages and prospects of the vertical eddy current separator in optimizing the separation efficiency between non-ferrous metals. The comparison and multi-objective optimization were conducted on the magnetic rollers to expand the particle size range that can be separated. The separation performance and the economy of the magnetic roller have been improved significantly, and the performance indicators are better than those of existing equipment with the same specifications. The magnetic roller with specific structural parameters has increased eddy current force and magnetic efficiency density by 75.0% and 63.5%, respectively. It is expected to further expand the applicable materials for the eddy current separator.

中文翻译：

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分选机结构和磁辊布置对涡流分选的影响


涡流分选机是从固体废物中分离富集有色金属的关键设备。随着各行业环保要求的日益严格以及企业追求更高的经济效益，对涡流分离机的定制化、通用性要求不断提高。小粒度有色金属的分选效率低和有色金属之间的分离困难是限制涡流分选发展的两个紧迫问题。分离器结构设计、因素调节和核心部件磁辊优化是解决问题的关键。立式和卧式涡流分离器是永磁涡流分离器在实际应用和报道研究中的两种主要类型。但涡流分离器的研究和生产成本较高，现有研究中关于分离器结构的报道较少。还缺乏对涡流分选机不同适用条件的对比分析以及磁辊的优化设计。本研究比较分析了不同因素对立式和卧式涡流分选效率的影响，明确了立式涡流分选机在优化有色金属间分选效率方面的优势和前景。对磁辊进行了对比和多目标优化，扩大了可分离的粒度范围。 磁辊的分选性能和经济性显着提高，各项性能指标均优于现有同规格设备。特定结构参数的磁辊使涡流力和磁效率密度分别提高了75.0%和63.5%。有望进一步扩大涡流分离器的适用材料。