200TPH Alluvial Gold Washing Plant In Ghana

• Mining field: Accra, Ghana, plain, no height difference is allowed, and the ground cannot be dug too deep
• Raw ore information: The amount of sticky mud is relatively large. When feeding, a high-pressure water spray gun is required to disperse the material. The gold particle size is 0-12mm, and the maximum feeding particle size of the raw ore is 150-200mm.
• Customer request: After ore washing, gold particles of 0-6mm and 6-12mm are recovered respectively. The process is required to be as simple as possible, easy to operate, and low energy consumption.

1. Washing stage: Trommel scrubber 

The loader feeds the material to the hopper, the high-pressure water spray gun sprays water to the silo, and the material is fed to the vibrating feeder. The grid screened out +75mm, the belt conveyor transported +75mm of waste, and the 0-75mm guide chute fed into the washing machine.
The trommel scrubber does not have a screen, and the material is discharged into a high-frequency vibrating screen (the first 6mm sieve, the second 12mm sieve),

2. Screening stage: Vibrating screen

The first vibrating screen discharges 0-6mm into 4 rows of gold chutes (2 sets * 6 meters in each row) to recover 0-6mm gold, 6-75mm goes into the second vibrating screen,
6-12mm into 2 rows of gold chutes (2 sets * 6 meters) to recover 6-12mm gold, and +12mm waste belt conveyor to transport it away.

3. Gravity separation: Jig separator, shaking tables, sluice box

All the concentrate washed out of the gold chute goes into the jig machine, the 0-2mm concentrate is screened and then put on the shaker, and the +2mm concentrate on the screen is cleaned out manually on a regular basis. (Jig concentrator and shaking tables are installed indoors by customers to prevent workers from stealing gold)