Mercury Free Gold Recovery Trommel System 200TPH Gold Separation Machine

Mercury free gold recovery trommel system

1.Product Introduction Gold Separation Equipment

The Mercury-Free Gold Recovery Trommel System is an environmentally responsible mining solution designed to eliminate the need for chemical amalgamation. Traditional artisanal mining often relies on mercury to capture fine gold, resulting in severe toxic contamination. This system replaces chemicals with advanced physical separation technology. By combining high-energy scrubbing (trommel) with high-G force concentration (centrifugal concentrator or specialized shaking tables), it achieves superior recovery rates—especially for fine "flour" gold—while keeping the process 100% mechanical and non-toxic.

2.Application Gold Separation Equipment

• Sustainable Artisanal Mining: Enabling small-scale miners to transition to "Green Gold" certifications and access premium international markets.

• Environmental Remediation: Recovering gold from old mine tailings that are already contaminated with mercury, safely removing the metal during the process.

• Protected Ecosystems: Mining in rainforests, river basins, or agricultural zones where chemical runoff is strictly prohibited by law.

• Community Mining Cooperatives: Providing a safe working environment for miners and protecting local water sources from heavy metal poisoning.

3.Working Principle Gold Separation Equipment

• Mechanical Liberation: The trommel uses high-pressure water and internal lifters to scrub the ore. This ensures that every gold particle is physically "freed" from clay and dirt, which is the first step in avoiding the need for mercury.

• G-Force Concentration: Instead of using mercury to "attract" gold, the slurry is fed into a Centrifugal Concentrator. This machine spins the material, using centrifugal force to trap heavy gold in riffles while washing away lighter sand.

• Gravity Finishing: The high-grade concentrate is then processed on a Shaking Table. The table uses a vibrating, tilted surface and water film to separate gold by density. Because the gold is already concentrated, it can be collected directly as "gravity gold."

• Direct Smelting: The final clean gold powder is dried and melted in a high-temperature furnace (often with borax) to produce gold bars, bypassing the hazardous "burning" of mercury amalgams.

4.Advantages Gold Separation Equipment

• 95%+ Recovery Efficiency: This mechanical circuit often recovers more fine gold than mercury, which often fails to capture microscopic particles trapped in "flour" gold.

• Health & Safety: Eliminates the risk of mercury vapor inhalation and skin contact, protecting the long-term health of miners and their families.

• Market Access: Produced gold can be sold as "Mercury-Free" or "Fairmined," which often fetches a higher price in the jewelry and investment sectors.

• Regulatory Compliance: Meets the requirements of the Minamata Convention on Mercury, helping miners stay legal and avoid fines or site closures.

• Reduced Tailings Impact: Because no chemicals are added, the waste sand (tailings) can be safely returned to the environment or used for construction without remediation.

5.Solutions