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kuangshan - Preparatory Work for Ore Beneficiation
جمعه 15 اسفند 1393  07:46 ق.ظ
توسط: crusher crusher

The preparatory work for ore beneficiation includes Sand Making Machineand screening, ore grinding and classification, and some ore dressing plants also include pre-concentration and ore washing process. The main purpose of this preparatory work is to realize the monomer separation of useful minerals and gangue minerals and the monomer separation of all kinds of useful minerals and provide proper dressing granularity for the ore beneficiation work.

sand making machine process. Crushing is a process in which large-sized materials become smaller in granularity under the effect of mechanical force. Its main role is preparing qualified dressing granularity for the ore beneficiation work, or providing the most suitable dressing, stone materials as fired and practical granularity for the dressing or metallurgy users. In the practical production of mining industry, the widely used crushing methods at present are still predominated by mechanical force crushing, including crushing, cutting, breaking, grinding and impacting, and the non-mechanical force crushing such as ultrasonic crushing has not been in application in the industrial production yet. The types of the crushing equipment that is used in the modern industry are various and the classifying methods vary as well. The crushing machines can be divided according to their working principle and structural features into jaw crusher, cone crusher, roller crusher and impact crusher.

Screening work. The process of separating the mixed materials of different sizes according to their granularity level is called screening. Two products can be obtained by screening: one is above screen products whose granularity is smaller than the screen hole so that they are able to go through the screen surface, and the other is under screen products that are left on the screen surface. In order to make the screening process come true, the materials should do relative motion on the screen surface, the purpose of which is on one hand to keep the material layers on the screen surface in a loose state and to produce layers according to the granularity, and on the other hand, the motion of the materials and the screen promotes the materials that block the screen mesh to break away the screen surface which will help the materials go through the screen mesh. (3) Grinding process. The main task of grinding process is to realize the monomer separation of useful minerals and provide suitable dressing granularity for the beneficiation work so that it is the crucial procedure of the ore dressing technology. The ore grinding equipment that is widely used in the ore dressing plant is ball mill and rod mill and the autogenous mill also has wide application in some new established plants in recent years. At the same time, some special fine mills such as vertical mill and vibrating mill have also been used in the ore grinding operation.


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پنجشنبه 1 تیر 1396 07:52 ب.ظ
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