Metallic mineral enrichment process and system based on dry separation devices
A sorting technology for metal minerals, applied in the direction of wet separation, solid separation, chemical instruments and methods, etc., can solve the problems of low utilization rate of media, few sorted products, excessive dust discharge, etc., to improve the comprehensive utilization of resources, Low investment and operating costs, simple operation and maintenance
Inactive Publication Date: 2019-02-15
CHINA UNIV OF MINING & TECH
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Problems solved by technology
Due to the limitations of each dry beneficiation equipment, under the separation process based on the equipment design, there are few sorted products, poor concentrate quality, low medium utilization rate, excessive dust emission, and the input material is greatly affected by moisture, etc. Problems that limit the degree of quality improvement and efficient utilization of dry separation of metal mineral resources
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[0032] Below in conjunction with accompanying drawing and specific embodiment, take chalcopyrite as an example to further describe the present invention in detail.
[0033] like figure 1 Shown, the metal mineral enrichment process based on dry separation equipment of the present invention comprises the following steps:
[0034] 1) Raw ore preparation and drying: The chalcopyrite ore transported from the mine or storage yard is first classified through a grading sieve with an aperture of 200mm, and the +200mm raw ore on the sieve is crushed to -200mm by a crusher, and mixed with the -200mm raw ore under the sieve before entering Screening with a grading sieve with an aperture of 100mm; f If it is higher than 8%, it will be pre-dried, and after the moisture drops below 8%, it will be discharged from the dryer, and the external moisture of -100mm raw ore M f Less than 8% go directly to the next step;
[0035]2) Raw ore sorting: the 100mm grading sieve, that is, the 100-200mm r...
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The invention discloses a metallic mineral enrichment process and system based on dry separation devices. The process includes the steps that after to-be-separated raw ore is screened, broken and dried, coarse-fraction raw ore enters a photoelectric separation machine to be subjected to separation, and coarse-fraction concentrate and tailing are obtained; and medium-fraction and fine-fraction mineral enters a compound dry separation machine to be subjected to separation, medium-fraction and fine-fraction tailing and rough concentrate are obtained, medium-fraction concentrate and fine-fractionrough concentrate are obtained after the rough concentrate is screened through a classifying screen, the fine-fraction rough concentrate enters a vibration fluidized bed separation machine to be subjected to separation, and concentrate and tailing are obtained. The system comprises a raw ore preparation and drying part and a separation part. By means of the metallic mineral enrichment process andsystem, metallic mineral of different large, medium and small particle sizes is efficiently separated at the same time, and the problems that at present, in the dry separation field, the number of separated products is small, the concentrate quality is poor, the medium utilization rate is low and dust is excessively discharged are solved.
Description
technical field [0001] The invention belongs to the field of mineral dry separation, and relates to a metal mineral dry enrichment process and system, in particular to a metal mineral enrichment process and system based on dry separation equipment. Background technique [0002] Metal ore is one of the mineral resources closely related to human production and life, providing necessary metal resources for the survival and development of human society. Affected by geological changes and the chemical characteristics of metals themselves, the endowment of metal mineral resources in China is poor. Most of the metal minerals do not exist in the form of monomers, but coexist and accompany non-metallic substances or other metals in the ore-forming environment. And comprehensive utilization brings great difficulty. Mining, beneficiation and smelting are the three main links in the comprehensive utilization of metal mineral resources, among which beneficiation is the most critical, th...
Claims
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Login to View More IPC IPC(8): B03B7/00B03B9/00
CPCB03B7/00B03B9/00Y02W30/52
Inventor 周恩会董良赵跃民段晨龙李妍娇朱风龙贺靖峰
Owner CHINA UNIV OF MINING & TECH