In recent years, the beneficiation technology and beneficiation equipment of placer gold have become the mainstream of the beneficiation industry, so what are the beneficiation methods and beneficiation equipment of placer gold? The following will be a brief introduction to the beneficiation of placer gold ore, and I hope it will be helpful to everyone.

1. The beneficiation method of alluvial gold ore

The gold content in alluvial gold ore is extremely low, and generally requires various high-efficiency, energy-saving gold dressing equipment to beneficiate and enrich it. Among various beneficiation methods, the gravity separation method is one of the beneficiation advantages of energy saving, high efficiency, and environmental protection. This method, and the gravity separation method is extremely suitable for beneficiation of placer gold ore, therefore, gravity separation method is the main method of beneficiation of placer gold ore.

2. The mining method of placer gold

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

3. Mineral processing technology of alluvial gold ore

As mentioned above, the beneficiation method of placer gold is mainly gravity separation, and the gravity separation process of placer gold is mainly divided into: 1. Ore washing operation. The purpose of the ore washing operation is to separate the gravel, sand and granular soil, and to wash away the fine mud adhered to the gravel and the gold particles mixed in it. 2. Screening operation. Generally, large pieces of gravel do not contain gold. In order to improve the efficiency of gold beneficiation equipment, it is generally necessary to screen the placer gold ore after ore washing to remove large pieces of gold-free stones. 3. Gravity separation operation The key operation of placer gold ore beneficiation is the process of removing most of the waste rocks and obtaining crude gold concentrate. Therefore, the effect of this process directly affects the beneficiation of the whole placer gold beneficiation process index. 4. Selected homework. According to the different types of placer gold mines, the beneficiation operation can be carried out with various equipment and methods such as gravity separation equipment, amalgamation equipment, etc., in order to further increase the gold content.

4. Mineral processing equipment for alluvial gold ore

The beneficiation process and operation process of alluvial gold ore have been mentioned above. In the ore washing operation, the method of water flushing is generally used to wash the ore, which is simple and practical. It is also used together with the screening operation to directly add water to the screening equipment to wash the ore sieve. Divided. In the screening operation, the main equipment used is vibrating screen, trommel screen, etc. In alluvial gold beneficiation plant, the most commonly used screening equipment is trommel screen. During the gravity separation operation, the core operation part of placer gold beneficiation, the commonly used equipment in this operation part includes chutes, jigs, etc. Among them, large and medium-sized gold dressing plants use jigs as the main gravity separation equipment, and small gold dressing plants use chutes, etc. Simple, inefficient reselection equipment. Choose different concentrating equipment according to different types of gold ore. For single gold ore, gravity separation equipment can be used for concentrating. For gold ores containing other precious metals that need to be recovered at the same time, other methods combined with other methods can be used to recover.