1. Crushing and grinding

Gold ore crushing and grinding to a suitable fine particle size to dissociate gold particles from the surrounding surrounding rock minerals.

This stage can usejaw crusher, cone crusher, ball mill, etc

2. Adjustment

Mix the ground ore with water and chemicals, including traps (e.g., xanthate, and other specific reagents), foaming agents, and pH regulators. The purpose of sizing is to create a suitable slurry with the desired pH level and reagent concentration. The equipment in this stage includes the mixing tank, mixing tank slurry tank, etc.

3. Foam flotation

Introduce the prepared pulp into the flotation tank, which contains stirred water and air. The addition of air forms bubbles that attach to the gold particles to float to the slurry surface. The hydrophilic surrounding rock minerals are retained in the slurry. The equipment used for flotation includes mechanical flotation machine, inflatable flotation machine, column flotation machine, vortex flotation machine, etc.

4. Enrichment and concentration

Floating gold particles, also known as concentrate, skim away from the surface of a flotation pool or trough. The concentrate contains a higher gold content than the original ore. Additional steps, such as washing or reflotation, can be taken to further concentrate the gold. According to the characteristics of pulp, different types of flotation machinery and their grooves may have different designs and structures.

5. Dehydration

Gold concentrate is usually dehydrated using concentration and filtration techniques to remove excess water and produce more accessible products for further processing. Gold mine dehydration equipment includes a concentrator, filter press, centrifuge, etc., which is used to remove the water in the flotation slurry and produce drier gold concentrate.

6. Melting or refining

Gold concentrate obtained from flotation is usually further processed by smelting or refining to obtain pure gold. These processes involve high-temperature operations to separate the impurities and produce the final gold product. These devices include furnaces, electrolytic cells, adsorption columns, etc.