Introduction
Shajin beneficiation equipment is specifically designed to extract gold from placer deposits, primarily using physical methods to separate gold particles from gangue minerals. Below is an introduction to common equipment and processes for sand gold beneficiation.
Main Equipment Categories
(1) Screening Equipment
Trommel Screen/Vibrating Screen: Removes large gravel and debris while classifying materials by particle size.
(2) Gravity Separation Equipment
-Fixed Sluice: Uses riffles, carpets, or grass mats to trap gold particles as water flows through.
-Vibrating Sluice: Enhances separation efficiency via vibration, suitable for fine gold recovery.
-Jig Separator: Separates minerals by density using pulsating water flow, ideal for medium-to-coarse gold with high throughput.
-Spiral Concentrator: Utilizes centrifugal and gravitational forces to recover fine gold (0.02–0.1 mm).
-Centrifugal Concentrator (e.g., Knelson Concentrator): Highly efficient for fine gold recovery, especially in high-grade placer deposits.
(3) Auxiliary Equipment
-Shaking Table: Refines concentrates from jigs or centrifuges, separating gold from other heavy minerals (e.g., wolframite, cassiterite).
-Amalgamation Barrel: Purifies liberated gold using mercury (requires strict environmental and safety measures).
-Magnetic Separator: Removes magnetic minerals (e.g., magnetite) to reduce interference.
(4) Tailings Treatment Equipment
-Tailings Dewatering Screen: Recycles water and minimizes environmental impact.
-Tailings Pond: Settles harmful substances to comply with environmental regulations.
|
Capacity |
5-50 t/h |
|
Screen Mesh Size |
5-20 mm |
|
Power |
3-15 kW |
|
Inclination Angle |
5-15° |
Shajin beneficiation equipment Typical Process Flow
(1)Pre-Treatment:
Raw ore → Screening (removing >20mm waste rock) → Classification (by particle size).
(2)Roughing:
Coarse gold: Recovered quickly via sluice or jig.
Fine gold: Enriched using spiral or centrifugal concentrators.
Cleaning:Rough concentrate → Shaking table or amalgamation → High-grade gold concentrate.
Tailings dewatering → Wastewater purification → Discharge meeting standards.
Shajin beneficiation equipment Key Considerations for Equipment Selection
(1)Ore Properties:
Gold particle size (jigs for coarse gold, centrifuges for fine gold).
Clay content (intensive washing required for high-clay ores).
(2)Processing Capacity:
Small-scale operations: Mobile equipment (e.g., truck-mounted centrifuges).
Large-scale operations: Fixed production lines (jig + shaking table combo).
(3)Environmental Requirements:
Avoid cyanidation; prioritize physical separation.
Tailings must undergo dry stacking or harmless treatment.
Important Notes
(1)Recovery Rate: Fine gold is easily lost; a "multi-stage classification + combined equipment"approach is recommended.
Maintenance Costs: High-energy devices like centrifuges require cost-benefit analysis.
(3)Site Adaptability: Arid regions should opt for water-saving solutions (e.g., air-powered shaking tables).
Q&A
(1)Q:What about the lead time for mass production?
A:The exact timeline will depend on your contract signing date, with standard production typically completed within 60-90 days.
(2)Q:What kind of files do you accept for printing?
A:PDF, Core Draw, high resolution JPG .
(3)Q:How many different types of products your company manufactures?
A:Currently, we mainly operate cutter suction dredgers and jet suction sand dredgers. If you have any special requirements, we can discuss further.
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