In recent years, the beneficiation technology and equipment of sand gold mines have become mainstream in the beneficiation industry. So, what are the beneficiation methods and equipment of sand gold mines? Below will be a brief introduction to the beneficiation of sand gold mines, hoping to be helpful to everyone.

1. Mineral processing methods for sand gold mines

The gold content in sand gold mines is extremely low, and generally requires various efficient and energy-saving gold selection equipment for beneficiation and enrichment. Among various beneficiation methods, gravity separation is a method with energy-saving, high-efficiency, and environmentally friendly beneficiation advantages, and gravity separation is extremely suitable for beneficiation of sand gold mines. Therefore, gravity separation is the main method for beneficiation of sand gold mines.

2. The mining method of sand gold mine

The mining of sand gold deposits is usually carried out using methods such as gold mining ships, hydraulic mining, excavator mining, and underground (vertical shaft) mining.

3. Mineral processing technology of sand gold mine

As mentioned earlier, the beneficiation method of sand gold mines is mainly based on gravity separation. In the gravity separation process of sand gold mines, it is mainly divided into:

1) Ore washing operation

The purpose of ore washing operation is to separate gravel, sand and granular soil, and wash away the fine mud adhered to the gravel and the mixed gold particles inside.

2) Screening operation

Generally, large gravel blocks do not contain gold. In order to improve the efficiency of gold selection equipment, it is necessary to screen the washed sand gold ore to remove large stones that do not contain gold.

3) Re select homework

The key operation of sand gold ore beneficiation during the re-election process is to remove most of the waste rock and obtain coarse gold concentrate. Therefore, the effectiveness of this process directly affects the beneficiation indicators of the entire sand gold beneficiation process.

4) Selected homework

According to the different types of sand gold mines, selection operations can be carried out using various equipment and methods such as re-election equipment and mercury mixing equipment, with the aim of further increasing the gold content.

4. Mineral processing equipment for sand gold mines

The beneficiation process and operation flow of sand gold mines have been discussed earlier. In ore washing operations, the water flushing method is generally used, which is simple and practical. There are also cases where water is directly added to the screening equipment to wash and screen the ore together with the screening operation. In screening operations, the main equipment used is vibrating screens, drum screens, etc. In the Shajin beneficiation plant, the most commonly used screening equipment is drum screens. The core operation of sand gold ore beneficiation during the re-election process involves commonly used equipment such as chutes and jigs. Among them, large and medium-sized beneficiation plants use jigs as the main re-election equipment, while small beneficiation plants use simple and inefficient re-election equipment such as chutes. Select different selection equipment according to different types of gold mines. For single gold mines, gravity selection equipment can be used for selection. For gold mines containing other precious metals that need to be recovered simultaneously, a combination of other methods can be used for recovery.