During the mining process of gold mines, a large amount of tailings will be produced, and these tailings still contain a certain amount of gold. If they are directly discarded, it will not only cause a great waste of precious resources, but also may bring potential environmental risks. To this end, we have specially tailored solutions for customers. The following is a detailed analysis of the process:

The gold tailings gold selection process mainly includes pretreatment, gravity separation, flotation, cyanide leaching and other steps.

1. Pretreatment stage

1. Screening and desludging: remove large particles of impurities and fine mud to improve the sorting efficiency.

2. Crushing and grinding: crush the tailings to a suitable particle size (usually <25mm), and then grind to fully dissociate the gold minerals.

2. Gold selection process

1. Gravity separation:

Equipment: shaking table, spiral chute, centrifugal concentrator.

Principle: use the density difference between gold and gangue minerals to achieve separation through water flow, centrifugal force, etc.

Applicable scenarios: recovery of coarse-grained gold minerals, low cost and no pollution.

2. Flotation:

Equipment: flotation machine, flotation column.

Principle: The gold minerals are attached to the bubbles through reagents and float to the surface for separation.

Applicable scenarios: Recovery of fine-grained gold minerals, good sorting effect but high reagent cost.

3. Cyanide leaching:

Equipment: cyanide tank, activated carbon adsorption tower.

Principle: Dissolve gold with cyanide solution, and then purify it through activated carbon adsorption, desorption and electrolysis.

Applicable scenarios: Fine-grained gold or complex gold encapsulation, high recovery rate but environmental protection should be paid attention to.

III. Subsequent treatment

Dehydration and dry stacking: Remove the moisture of tailings through concentrators and filters, dry stack or backfill to reduce environmental pollution.

The gold tailings gold selection process is an important direction for the development of green mining. Through efficient recovery and environmental protection treatment, the dual goals of resource utilization and environmental protection are achieved. With the technological innovation and equipment upgrading of gold tailings gold selection process, the gold tailings gold selection process will provide important support for the sustainable development of the mining industry.