A 60 tons per hour (tph) gold processing plant is designed to process gold ore on a continuous basis at a rate of 60 tons of ore per hour. Such a plant generally comprises several key components including:
Crushing Circuit: This reduces the size of the material, making it easier to handle and process in the next stages. Common equipment includes jaw crushers, cone crushers, and hammer mills.
Grinding Mill: To further reduce the size of ore particles and liberate gold from other materials. Often, a ball mill or SAG (Semi-Autogenous Grinding) mill is used.
Classification: A classifier or screen separates the fine particles from the coarser ones. This ensures that only the appropriately sized material moves on to the next stage.
Gravity Separation: Using equipment like jigs, spirals, shaking tables, or centrifugal concentrators to separate gold from other materials based on differences in specific gravity.
Leaching Circuit: If required, this process chemically extracts gold by dissolving it in a suitable reagent — cyanide or other leaching agents are typical options for this stage.
Adsorption: Removing the gold from the solution can often be accomplished using activated carbon or other adsorbents.
Desorption and Recovery: Separating the gold from the adsorbent, typically by an elution process followed by electro-winning or precipitation.
Refining: The final step to produce pure gold, often involving smelting or electro-refining.
Tailings Management: Proper disposal or treatment of the waste materials after gold extraction to minimize environmental impact.
Operation of such a plant requires careful planning, skilled personnel, and consideration of environmental regulations. Ongoing maintenance and monitoring are also essential to ensure efficiency and effectiveness.
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