The Development of Gold Ore Processing Plant

How to Find the Mine Position of Gold Ore?

The easiest way to find gold on land or underground is with a detetor de ouro. This machine is operated manually; it is very popular among small gold miners. They try to find gold or other metals underground, then try to dig up the gold ore, then separate out gold using a small sluice box and washing machine.

Para large-scale gold mining, they will use other big gold detection machines to find the exact gold mine position, and blast the rock and gold stone out. Then send to next processing plant.

Global Gold Ore Distribution

Gold-rich regions include:

• África: Mali, Sudan, Ghana, Congo, Zimbabwe, Tanzania
• South America: Peru, Chile, Bolivia, Suriname
• Other regions: Australia, the USA

Each location has unique geological conditions, necessitating tailored processing approaches.

The Development of Gold Ore Processing Plant

Traditional gold ore processing plant

• Aluvial gold: using the gold panning pan and sluice box, this method is mostly used by small miners.
• Rock gold: Mixing with mercury after crushing & grinding to a small size, then refining the gold from gold amalgamation material by distillation.

But nowadays, due to mercury being harmful to health and the environment, government forbid to use mercury. So miners have to find a better, more environmentally friendly way for the gold ore processing plant.

Modern Eco-Friendly Solutions

JXSC Mine Machinery Company in China has more than 40 years of professional experience in gold ore processing plants, designs a full set of gold ore process flowcharts, provides a complete set of gold ore processing plant, and can send an engineer to the mine site for equipment installation and commissioning guidance. Have already built many gold ore processing plants in African countries. Include: Mali, Sudan, Mozambique, Suriname, Ghana, Congo, Zimbabwe, Zambia, Tanzania, Ethiopia, Peru, Chile, Bolivia, Australia, etc.  

Below are the flowchart descriptions that JXSC engineers recommend for the alluvial gold and rock gold ore processing plant:

1. Alluvial Gold Ore Processing Plant

Feeding -> Washing -> Sieving-> Primary Separation -> Final Concentration -> Refining

Alimentação: There are several kinds of feeding methods, depending on plant and material conditions, and can be a vibration feeding machine, feeding hopper, belt feeder, wheel loader, or excavator feed directly. Usually will make a grizzly bar on vibration feeder or hopper to remove big waste stones first.

Lavagem: It is used to wash and clean clay and mud in raw materials; the most commonly used are purificador trommel de ouro e ecrã trommel. Trommel scrubber washing machine is for washing raw material that with many sticky clay; trommel screen is for washing raw material that does not have much sticky clay.

Peneiração: After washing, then sieve out some bigger waste stones,the under screen slurry will go to next separation machine. This sieving process can use a trommel screen, a vibration screen, or a high-frequency vibration screen.

Primary Concentration: It is for the primary gold concentration process; gold centrifugal concentrator and jig separator are the best choice. The concentrate ore discharged from them will send to final concentration machine.

Concentração final: The concentrate ore from the gold jig machine or gold centrifugal concentrator will go to a gold shaking table concentration machine for final concentration, which can get high-purity gold.

Tailing Recovery: Usually, gold sluice box recovery tailings that are discharged from the gold centrifugal machine. So can get more gold.

Refinação: If you need very high-purity gold and need to smelt to a gold bar for sale, then you can use a gold induction smelting furnace to smelt gold dust into a gold bar. Then can sell it.

The most effective gold ore processing plant is always as per the miner’s request, gold ore conditions, and gold ore processing plant capacity.

Below are some pictures of an alluvial gold ore processing plant from JXSC Mine Machinery Factory in China.  

2. Rock Gold Ore Processing Plant

Feeding -> Crushing -> Grinding -> Primary Separation -> Final Concentration-> Upgrading 

O feeding way, primary separation, final concentration, e processo de refinação do ouro are almost the same as the above alluvial gold ore processing plant.

Below are the crushing and grinding stage descriptions for a rock gold ore processing plant:

Trituração: Crushing the big rock gold stone to a smaller size before grinding. The trituradores de pedra can be a rough rock gold jaw crusher, a rock gold fine jaw crusher, a rock gold cone crusher, a rock gold hammer crusher, or a roller crusher rock gold ore, depending on the rock gold feeding size and process capacity to use which kind of crusher.

Moagem: After crushing the rock gold stone to a smaller size, it needs to be ground into powder by a rock gold máquina de moer bolas, wet pan mill, or other rock gold grinding machine, so the gold concentrate can released out from stone. Then go to the gold separation machine and concentration machine. ( mesa vibratória de ouro)

Below are some pictures of rock gold ore processing plant from JXSC Mine Machinery Factory in China.