Precautions for Gold Extraction by Crushing and Heap Leaching of Gold Mines

Today, we will explore several key points that require special attention in the Gold mine crushing process.

In the process of Gold mine fracture pile extraction, the following key matters should be paid attention to:

1. Ore property analysis

Mineral composition: master the Gold content in the ore and its associated minerals in the ore to ensure the applicability of heap leaching method.

Particle size distribution: the particle size of the crushed ore should be uniform, as too large or too small will affect the leaching effect.

2. The crushing process

Crushing equipment: select the appropriate crusher, such as jaw crusher, cone crusher, to ensure that the ore reaches the ideal grain size.

Particle size control: generally controlled within the range of 10-30 millimeters. If it is too large, it will reduce the leaching rate, while if it is too small, it will easily produce fine mud and hinder the penetration of the solution.

3. Preparation of the heap leaching site

Site selection: select a flat ground with good anti-seepage performance to prevent environmental pollution caused by solution leakage.

Anti-seepage treatment: laying high standard anti-seepage membrane to effectively blocks the leaching solution into the ground.

4. Selection and use of leaching reagent

Leaching reagent: usually choose Sodium Cyanide solution, need to accurately control its concentration (0.05% -0.1%), too high will increase the cost, too low will affect the leaching efficiency. The Eco-friendly Gold Leaching Reagent YX500 can replace Sodium Cyanide with the same amount or increase the amount to improve leaching efficiency.

PH value regulation: keep the PH value in the range of 10-11 to prevent Cyanide decomposition.

5. Heap leaching operation points

Heap height control: the heap height is generally set to 3-6 meters, too high will hinder the penetration of solution, and too low will reduce the operation efficiency.

Spray strength: the spray strength should be controlled at 5-10 L / m² · h, too large will easily lead to the loss of solution, too small will affect the leaching effect.

6. Management of the leaching solution

Leaching solution collection: Ensure that the leaching solution is effectively collected to prevent its loss and contamination.

Leaching solution cycle: recycle leaching solution to improve gold recovery and reduce consumption of reagents.

7. Environmental protection

Wastewater treatment: the leaching liquid must be strictly treated before discharge to prevent pollution to the environment. The eco-friendly Gold Leaching Reagent YX500 has minimal environmental and ecological pollution, and can meet the requirements of environmental policies.

Tailings treatment: the leaching tailings should be properly disposed of to avoid secondary pollution.

8. Safety management

Cyanide management: In view of the highly toxic characteristics of Cyanide, strict management measures must be implemented to prevent the occurrence of leakage and poisoning events. The eco-friendly Gold Leaching Reagent YX500 has been tested by a third party and verified as a low toxicity and environmentally friendly product, which is easy to manage.

Personnel protection: Operators must wear corresponding protective equipment and receive regular safety training to ensure safe operation.

9. Equipment maintenance

Regular inspection: regular comprehensive inspection of crushing, spraying and other equipment to ensure its stable operation.

Timely maintenance: once the equipment fault is found, repair immediately to prevent affecting the production schedule.

10. Cost control

Reagent cost: reasonable optimization of reagent use plan, effectively reduce the cost expenditure.

Energy consumption control: optimize the crushing and spray process process to significantly reduce energy consumption.

The above mentioned items are common precautions in the process of Gold mine crushing pile extraction, and multiple factors such as ore characteristics, process parameters, environmental protection and safety management should be comprehensively considered to improve the Gold recovery rate.