Analysis of mineral processing method and equipment of placer gold mine

In recent years, the mineral processing technology and equipment of sand gold mine have become the mainstream of mineral processing industry. What are the mineral processing methods and equipment of placer gold mine? The following is a brief introduction to the mineral processing of sand gold mine, hoping to help you.

1.Mineral processing method of placer gold mine

The content of gold in placer gold mine is very low. Generally, it needs to be beneficiated and enriched by a variety of high-efficiency, energy-saving and other gold separation equipment. Among all kinds of beneficiation methods, gravity separation method has the advantages of energy saving, high efficiency and environmental protection, and gravity separation method is extremely suitable for the separation of placer gold mine. Therefore, gravity separation method is the main method for the beneficiation of placer gold mine.

2.Mining method of placer gold mine

Placer gold deposits are usually mined by dredger, hydraulic mining, excavator mining and underground (shaft) mining methods.

3. Mineral processing technology of placer gold mine

As mentioned above, gravity separation is the main mineral processing method of placer gold mine. The gravity separation process of placer gold mine is mainly divided into:

1. Ore washing operation. The purpose of ore washing operation is to separate gravel, sand and granular soil, and clean the fine mud adhered on gravel and mixed with gold particles.

2. Screening operation. Generally, large pieces of gravel do not contain gold. In order to improve the efficiency of gold separation equipment, it is generally necessary to screen the gold placer after ore washing to remove large pieces of non gold stone.

3. Gravity separation is the key operation of sand gold ore dressing. This process is to get rid of most of the waste rock and get coarse gold concentrate. Therefore, the effect of this process directly affects the beneficiation index of the whole sand gold ore dressing process.

4. Select homework. According to different types of Sha gold mine, gravity separation equipment, mercury mixing equipment and other equipment and methods can be used for beneficiation, in order to further enhance the gold content.

4.Beneficiation equipment of placer gold mine

We have talked about the beneficiation process and operation process of placer gold mine. In the ore washing operation, the water flushing method is generally used, which is simple and practical. Some of them also use water washing and screening directly on the screening equipment together with screening operation. In the screening operation, the main equipment used is vibrating screen, roller screen, etc. In placer gold concentrator, the most commonly used screening equipment is roller screen. Gravity separation is the core part of mineral processing in placer gold mine. The commonly used equipments in this part are chute, jig, etc. the jigger is used as the main gravity separation equipment in large and medium-sized gold concentrators, and chute and other simple and inefficient gravity separation equipment are used in small gold concentrators. According to different types of gold ore, different cleaning equipment can be selected. For single gold ore, gravity separation equipment can be used. For gold ore containing other precious metals that need to be recovered at the same time, other combined processes can be used.

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