Rock Gold Ore Gravity Separation Production Line and Process Solution

Igneous Gold Ore Gravity Beneficiation Production Line Solution is designed for high-efficiency recovery of free gold from Rock/Vein Gold Ores.

This solution utilizes the density difference between gold and gangue. By employing a multi-stage process of Crushing - Grinding - Jigging - Shaking Table, it achieves extremely high recovery of coarse-grained gold with low investment and no chemical pollution.

Step 1: Crushing (Size Reduction)

Goal: Crush raw rocks to -15mm for efficient grinding.

• Coarse Crushing: Jaw Crusher handles large raw ore.
• Fine Crushing: Cone Crusher or Fine Jaw Crusher reduces ore to -15mm.
• Screening: Vibrating Screen ensures particle size control.

Step 2: Grinding & Classification (Liberation)

Goal: Fully dissociate gold particles from quartz veins.

• Grinding: Ball Mill grinds the crushed ore. Steel balls impact the rock to release gold.
• Classification: Spiral Classifier separates fine particles for processing and returns coarse sand for regrinding (Closed Circuit).

Step 3: Gravity Separation (Core Recovery)

The core stage uses multi-stage separation to recover gold of different sizes:

Step 4: Concentrate Purification

• Amalgamation: Use Amalgamation Barrel to extract free gold from the heavy mineral concentrate.
• Smelting: The gold amalgam is retorted to recover mercury and produce crude gold ingots.

Project: African Quartz Vein Gold Mine

We implemented a "Crushing -> Grinding -> Jigging + Shaking Table" process.

• Recovery Rate: Significant increase over traditional sluice methods.
• Concentrate Quality: Produced direct smelting grade concentrate.
• Cost: Low operating cost due to gravity-only workflow.

Q1: Is Gravity Separation suitable for all gold ores?

A: It is best for "Free Milling" ores where gold particles are coarse and liberated. For microscopic gold locked in sulfides ("Refractory Gold"), Flotation or Cyanidation is required.

Q2: What is the advantage of using a Jig?

A: Jigs have a large capacity and can recover coarse gold continuously. They act as an excellent "Rougher" to reduce the volume of material that needs to go to the more expensive Shaking Tables.

Q3: How much water does the plant need?

A: Gravity separation is water-intensive (approx. 2-3 tons of water per ton of ore). However, with our Tailings Thickener and water recycling system, up to 90% of the water can be reused.

Get Your Custom Gold Plant Design

We customize the solution based on your ore's gold particle size and grade.
Contact us for a free flow sheet design and quotation.

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