Concerning the selectivity of the experimental device based on eddy currents for the metal waste separation
Concerning the selectivity of the experimental device based on eddy currents for the metal waste separation
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关于涡流金属废料分离实验装置的选择性
DOI：
10.1109/iseee.2013.6674383
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
V. Ivanov
中科院分区：
文献类型：
--
作者：
M. Brojboiu;L. Mandache;V. Ivanov
本文介绍了一种黑色金属和有色金属废料及其合金的鉴定和分离方法。为此，给出了利用基于涡流的实验装置所获得的结果。一个由U型锰锌铁氧体制成的具有开路磁路的探头线圈被提供高频正弦交流电压。探头线圈位于铜及其合金黄铜等随机有色金属零件上，铝及其合金硬铝上，以及碳钢、铁素体不锈钢、GO硅钢等随机黑色金属零件上。在电压值保持不变的情况下，通过测量电流来确定探头线圈的阻抗随频率和金属材料类型的变化。着重讨论了有色金属材料的电导率和黑色金属材料的磁导率等材料参数对涡流深度穿透值的影响，从而对阻抗的影响。与其他类型的磁选机粉碎金属废料不同，该方法可用于各种几何尺寸的金属废料的分离。
In this paper, a method for the identification and separation of the ferrous and non ferrous metal waste, as well as of their alloys, is described. For this purpose, the obtained results using an experimental device based on eddy currents are presented. One probe coil having an open magnetic circuit made from Mn Zn ferrite, U type is supplied with a high frequency sinusoidal AC voltage. The probe coil is located on the random nonferrous metal parts from copper and his alloy such as brass, on the aluminum and his alloy duralumin and also on the random ferrous metal parts from steel carbon, ferritic stainless steel and GO silicon steel. The probe coil's impedance variation to changes in frequency and metal material type were determined by measuring the current when the voltage value was kept constant. The influence of material parameters, such as electrical conductivity for the nonferrous materials, and the magnetic permeability for the ferrous ones, over the depth penetration values of the eddy currents and therefore over the impedance values was highlighted. In contrast to other types of magnetic separators, where the metallic wastes are shredded, the presented method can be applied for the separation of metal scrap with various geometries and sizes.