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当今的铁矿工业存在着两个相互矛盾的趋势:一方面能供直接处理的铁矿床越来越少,而较低品位的矿床的开采日益增多;另一方面却由于炼铁工业的进展,要求矿石混合料中的铁晶位日益提高。因而需要不断地提高磁选的效率。世界上加工处理的铁矿石中,90％以上用湿式弱磁选选别。这种方法是行之有效的,但是它改进分选性能的潜力却已经不大了。
There are two conflicting trends in today’s iron ore industry: on the one hand fewer and fewer are available for direct processing, while more low-grade deposits are being exploited; on the other hand, due to the progress of the ironmaking industry , Requiring the iron ore mixture in the growing bit of crystal. Therefore, it is necessary to continuously improve the efficiency of magnetic separation. Among the iron ore processing and processing in the world, more than 90% are selected by wet weak magnetic separation. This approach works, but its potential for improving sorting performance is slim.