Low grade precious metal ore negative pressure multistage enrichment technology and device

A precious metal, low-grade technology, applied in the field of full recovery and utilization of low-grade precious metal resources, can solve the problems of pollution of the environment, low efficiency of beneficiation process and equipment, waste of resources, etc. The effect of pollution

Active Publication Date: 2013-05-15
山东黄金矿业股份有限公司新城金矿
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Problems solved by technology

[0004] The present invention focuses on providing a low-grade precious metal ore negative pressure multi-stage enrichment process and device, which separates the non-metallic and precious metal components that account for a large proportion, and solves the problem of low efficiency of the existing mineral processing process and device, polluting the environment, and reducing resources. A series of problems such as serious waste

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  • Low grade precious metal ore negative pressure multistage enrichment technology and device

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and examples.

[0028] A low-grade precious metal ore negative pressure multi-stage enrichment device of the present invention includes a coarse crushing device 1 for coarsely crushing ore raw materials, a coarse crushing hopper is arranged at the bottom of the coarse crushing device 1, and a coarse crushing hopper is arranged below There is a fine crushing device 2, a fine crushing hopper is provided at the lower end of the fine crushing device 2, a first negative pressure bin 3 is arranged below the fine crushing hopper, and a dust pulverizing device 4 is arranged in the first negative pressure bin 3, and the dust pulverizing device 4 includes a roller and a The roller rod fixedly installed in the roller also includes a dust driving motor 5 that drives the roller of the dust pulverizing device 4 to rotate. The lower end of the first negative pressure chamber 3 has a fir...

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Abstract

The invention provides a low grade precious metal ore negative pressure multistage enrichment technology and a device. After coarse crushing and fine grinding, ore raw material mostly becomes powder material, in the fine grinding and screening process, non-metallic particles, suspended in the air, of the powder material can be recycled under the effect of confined space negative pressure, residual powder particles containing large density metal and nonmetal are mixed with water after sedimentation, and components large in density of precious metal and nonmetal mixture are further separated under the effect of a hydrocyclone. According to multistage negative pressure dry and wet mixing method separation technology, the low grade precious metal enrichment purpose is achieved, low grade precious metal sources are enabled to be fully recycled and reused, and water and power sources are saved, and precious metal source waste is reduced.

Description

technical field [0001] The invention relates to a precious metal ore enrichment process and device, which is mainly suitable for the full recovery and utilization of low-grade precious metal resources. Background technique [0002] For a long time, the recycling of low-grade precious metal ores has not been fully and effectively utilized. The main reason is that due to the constraints of traditional mineral processing technology, there is serious environmental pollution, low recycling rate, and serious waste of resources such as water and electricity. And so on a series of questions. [0003] On the other hand, using the existing ore enrichment process and equipment, there are still problems such as insufficient and effective utilization of non-metallic mineral resources and serious waste. In fact, non-metallic mineral resources in precious metal ores have high utilization value in manufacturing, metallurgy, machinery, building materials and other industries. Contents of ...

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Application Information

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IPC IPC(8): B03B7/00B02C21/00B02C23/08
Inventor 李强王照亚李大东周波
Owner 山东黄金矿业股份有限公司新城金矿
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