Hard rock Gold mining process

Advanced Mineral Processing Turnkey Solutions | ISO Certified Equipment

A hard rock gold processing plant is an integrated system designed to extract & separate gold from various rock minerals through a series of beneficiation processes. The hard rock gold (vein gold) mining processes involve various specialized separation equipment, such as crushing, grinding, gravity separation, flotation, leaching, cyanidation, or melting; every stage of the process is used for max recovery or purifying the ore.

Supported ore types: Quartz vein gold, sulfide gold, low-grade oxide gold, alluvial gold, and more.

Hard Rock Gold process

JXSC’s proven process includes feeding & crushing, screening & grinding, beneficiation, refining, ensuring maximum gold extraction from your hard rock ore. Whether you’re processing quartz vein, sulfide, or low-grade oxide gold ore — we engineer the optimal flowsheet for 90%+ recovery.

Rock Gold Mining Process

⇒ Feeding & Crushing: Vibrating feeders are responsible for uniform and adjustable-speed feeding. Crushing mainly uses a two-stage closed-circuit or a single-stage closed-circuit process. The jaw crusher or cone crusher is used for coarse ore; then, a secondary rock crusher is used for medium and fine ore crushing operations.

⇒ Grinding & Classifying: For the requirement of gold ore grinding fineness, a ball mill is usually used together with a spiral classifier, and the qualified particle size is below 200 mesh.

⇒ Beneficiation Stage:

Gravity separation (eco-friendly): The gravity separation process is mainly used to separate rock gold deposits with a simple structure and coarse grain size, especially the oxide rock gold deposits with high density. It relies on large differences in density between the target metal (gold) and the materials in which it is found. Main gravity separation equipment including sluices box, spiral chutes, jigs, centrifugal concentrators, and shaker tables.
Flotation (sulfide ore): For fine-grained gold associated with sulfide minerals. Achieves superior recovery for complex refractory gold ores.
CIP/CIL Leaching Plant (high recovery): Carbon-in-pulp / carbon-in-leach process for refractory gold ores requiring chemical extraction. 95% recovery even for low-grade ores.

Due to gold ore usually containing a variety of minerals or impurities, it is necessary to use a combination of multiple processes for complex ores, such as: washing, flotation, magnetic separation, electric separation, CIP, CIL, etc. From rock ore to gold bar – tailor-made gold beneficiation solutions based on your ore (such as hardness, gold particle size), capacity, site conditions, production targets, and budget. In addition, JXSC offers customized mobile gold processing plants featuring a modular, containerized design; these units can be rapidly deployed and relocated, making them an ideal choice for exploration and short-term projects. Contact us to tailor the process and equipment for small to large rock gold process projects!

hard rock gold processing plant

♦ rock gold processing plant

The following is a detailed description of the rock gold processing plant flow:

1. The raw ore is evenly fed into two jaw crushers by vibrating feeder for primary and fine crushing, crushing large rocks into smaller sizes.

2. Then, the material is fed into the vibrating screen, and the oversized stones are transported back to the fine gold crusher for further crushing;

3. The undersized ore into the transfer ore bin, the fine ore is transported to the ball mill via an electromagnetic vibrating feeder to grind the ore into powder. The ball mill and the spiral classifier form a closed-loop grinding device. The coarse particles are returned for re-grinding, and the materials into the centrifugal concentrator by a slurry pump to separate fine gold.

4. The tailings enter the sluice box to recovery more gold; all concentrates are sent to the shaking table to finely concentrate the gold. Then it goes into the gold melting furnace to be refined into gold bars

♦ rock gold crushing plant

Jaw Crusher + Hammer Crusher Plant

This setup is a 5-10tph vein gold ore crushing plant, main equipment and flow details as follows:

1. The trough feeder can feed evenly to the crusher. Jaw crusher preliminary crushing of large rocks can also be made mobile type as requested. The hammer crusher output size is adjustable like 10mm,5mm, etc. For this project, the materials are ground to 0-2mm; it can also be made mobile type as per request.

2. Using a shaking table to recover fine gold, then it is melted into gold bricks through a gold melting furnace.

This plant can also be used for processing hard rock tin ore, coltan ore, tungsten ore, chrome, copper, etc. The capacity can be customized as requested, such as 20tph, 50tph, 100tph, etc.

Note: In such a small rock gold processing plant, if ultra-fine grinding (such as nanometer level) is required, oxidation agglomeration prevention is required, or fine slurry is directly produced for wet gold extraction processes such as cyanide leaching, a wet pan mill can be considered for its high efficiency, reliability, and low cost.

♦ Rock gold gravity separation plant

This is a complete set of 5TPH rock gold gravity separation line successfully customized by JXSC for customers in Cote d’Ivoire.

1. Feeding & Crushing: Raw materials enter the hopper through an excavator or forklift, and are evenly fed through a belt conveyor to the jaw crusher for primary crushing. The crushed materials enter the hammer crusher again through the belt conveyor for secondary crushing.

2. Gravity separation: Next, it is transported by the belt to the centrifugal concentrator for primary gold ore enrichment. The concentrate from the centrifuge enters the shaking table again for enrichment to obtain the final gold concentrate.

Hard rock gold processing plant for sale

Custom Rock Gold Solutions

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