Ore dressing process dissociation degree and crushing

As we all know, our country is rich in mineral resources, is the pillar of the national infrastructure, but the vast majority of useful minerals and gangue minerals, are joined tightly together, only to be processed in order to rational use. Ore in use first needs to carry on the processing, they should be broken any dissociation, processing methods are not enriched them. Ore crushing, the particle size decreased, and the interface between the different minerals have cracked, even in a variety of minerals. There is a certain degree of separation, some particles containing only a mineral called monomer dissociation; some other particle or several mineral intergrowth with the associated particle, called. In the mineral processing experiment, test processing products that, low grade of concentrate, tailings grade and mineral rate, is often caused by insufficient degree of dissociation. Therefore, crushing and grinding is selected before not less homework, it selected materials for separation of useful minerals dissociation is sufficiently large. Mineral group, except for a few very coarse grain disseminated ores, only broken ore is gaining considerable monomer dissociation grain outside, usually must go through grinding, can get high degree of dissociation. Crushing effect is usually ready to feed grinding, grinding is the final step to achieve full dissociation.

The grinding product is too coarse, the dissociation is not sufficient, the concentrate grade and recovery rate are selected. Too small is not necessary, cause harm even, because of broken ore beneficiation of fine particles is difficult to happen. If the particle is more, make the production, it is the ore was crushed over. Harm of crushing is fine particle is difficult to control, the concentrate grade and recovery rate are increased, the machine wear, reducing the processing capability of the equipment, ore crushing the futility of the power consumption. The occurrence of the crushing grinding process is serious, but from the crushed ore has been appeared. Therefore, should be to prevent crushing at the beginning of ore crushing, abide by the "don't make unnecessary the broken 'rule.