30kg/Hour-450kg/Hour Gemini Gold Table For Alluvial Gold Concentrate Upgrading

Gemini table for alluvial gold concentrate upgrading

1.Product Introduction Gold Ore Processing Equipment

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2.Application Gold Ore Processing Equipment

In the processing of alluvial (placer) gold, the Gemini table is utilized in the following key areas:

• Final Cleaning (Finishing): The final stage in the gravity circuit to produce the highest possible grade of gold concentrate.

• Fine Gold Recovery: It excels at capturing fine and ultra-fine gold particles that are often lost by sluice boxes or jigs, bridging the gap in recovery efficiency.

• Small to Medium-Scale Mining: Due to its high recovery rates and manageable operational complexity, it is the preferred choice for mid-sized plants and mobile wash units.

• Integrated Circuits: It is frequently paired with jigs or sluices, handling the "black sand" concentrates produced by those bulk-processing machines.

3.Working Principle  Gold Ore Processing Equipment

The operation of the Gemini table is based on wet gravity separation, involving three critical physical processes:

1. Stratification: As pulp is fed onto the deck, mechanical vibration causes particles to layer by density. Heavy minerals (Gold) sink to the bottom of the riffles, while light minerals (Silica/Quartz) rise to the top.

2. Transport and Separation: A transverse flow of water washes over the deck. This water sweeps the top layer of light minerals downward across the riffles into the tailings area. Simultaneously, the asymmetric reciprocating motion (a "slow forward, fast back" stroke) creates a "crawling" effect, driving the heavy minerals longitudinally along the grooves toward the concentrate end.

3. Zoning: By precisely adjusting the vibration frequency, stroke length, deck tilt, and water volume, the materials separate into distinct bands. This creates a visible "gold line," followed by a middlings zone and a broad tailings zone.

4. Advantages  Gold Ore Processing Equipment

In the specific context of placer gold refining, the Gemini table offers several competitive benefits:

• High Recovery Rates: It achieves exceptional recovery for gold, often reaching 95%, especially for the problematic fine-grained gold.

• High Enrichment Ratio: It can produce a high-purity concentrate, significantly reducing the volume of material required for downstream smelting or chemical treatment.

• Broad Particle Size Range: It effectively handles a wide spectrum of gold particle sizes, from relatively coarse grains down to microscopic flour gold.

• Industrial Reliability: The mechanical structure is robust and simple, leading to high stability and low downtime in remote mining environments.

• Superior Selectivity: Its density-based separation provides extreme selectivity for gold, ensuring that impurities like magnetite or ilmenite are separated into the middlings or tailings.

5..Our Solutions