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

Abstract

The present invention is a low-grade ore precious metal negative pressure multi-stage dry-wet mixing method enrichment process and device. After coarse crushing and fine crushing, most of the ore raw materials become powder materials. During the fine crushing and screening process, these powders Under the action of negative pressure in the closed space, the non-metallic particles suspended in the air will be recovered, while the remaining metal and non-metallic powder particles with high density will be mixed with water after settling, and will be collected in the hydrocyclone. Under the action, the dense components in the noble metal and non-metal mixture are further separated. Through this multi-stage negative pressure dry-wet mixing separation process, the purpose of enriching low-grade precious metals can be achieved, so that low-grade precious metal resources can be fully recycled, water and electricity resources can be saved, and waste of precious metal resources can be 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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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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