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利用不同频带电磁场来提高矿石精矿质量的研究成果已公布了。根据这些研究成果明确了电磁场能量对于金属矿物相和非金属矿物相的选择性作用过程。按照通常的工艺流程,在用分选方法从铁矿石中分选出磁铁矿精矿之前要进行磨矿,以解离脉石和金属矿物颗粒连生体。这些颗粒的大小决定磨矿度和最终粒度。但是,在磨矿过程中连生体不仅沿金属矿物相和非金属矿物相的解理面破坏,而且沿磁铁矿颗粒最薄弱的结合面破坏。因此,在磨至
The research results of using different frequency bands to improve the quality of ore concentrate have been published. Based on these findings, the selective action of electromagnetic field energy on the metallic and non-metallic mineral phases has been clarified. In accordance with the usual process, prior to sorting out the magnetite concentrate from the iron ore by a sorting method, grinding should be performed to dissociate gangue and metal mineral particles together. The size of these particles determines the degree of grinding and the final particle size. However, during the grinding process, the engeneer is not only destroyed along the cleavage planes of the metallic mineral phase and the non-metallic mineral phase, but also destroyed along the weakest interface of the magnetite particles. Therefore, the mill to