Alluvial gold washing plant solution
Alluvial Gold Washing Plant Solution
1. Overview
Alluvial gold deposits are widely distributed in riverbeds, floodplains, ancient river channels and placer areas. The core of an alluvial gold washing plant is to loosen, screen, gravity separate and concentrate raw ore, so as to efficiently recover free gold particles with low mud content and high monomer dissociation.
This solution is suitable for onshore open-pit placer gold, river sand gold, and gravel-type alluvial gold mines, with characteristics of high recovery rate, low investment, simple operation, water saving and environmental protection.
2. Process Flow (Standard Complete Set)
General Process
Raw ore mining → Feeding & screening → Desliming & grading → Gravity separation → Gold concentration → Tailings discharge
Detailed Process
Feeding Section
Equipment: vibrating feeder, mining truck / excavator feeding
Function: uniform feeding, prevent blockage and overload
Screening & Washing Section
Equipment: drum scrubber / trommel screen
Function:
Scrub mud and clay from gravel
Separate large waste rock (>30–80mm, customizable)
Classify sand and gravel to improve separation efficiency
Desliming Section
Equipment: hydrocyclone, screw classifier, dewatering screen
Function: remove fine slime that affects gold recovery
Slime can be recycled or treated by thickener to reduce environmental pollution
Gravity Separation Section (Core)Main equipment:
Centrifugal concentrator (Knelson / Falcon type) – high recovery for fine gold
Gold shaking table – high sorting accuracy, easy to manage
Sluice box with gold carpet / mercury-free mat – low cost, suitable for bulk ore
Advantage: physical separation, no chemical needed, environmental friendly
Concentration & Collection Section
Equipment: gold panning table, magnetic separator, amalgamator (optional mercury-free)
Obtain concentrated gold concentrate, which can be directly smelted
Tailings & Water Recycling
Tailings: piled or backfilled
Water: recycled by sedimentation tank → reuse in washing plant
Water consumption reduced by more than 70%
3. Equipment Configuration Scheme
Small Scale (5–20 t/h)
Trommel screen + sluice box + shaking table
Suitable for small-scale placer, artisanal mining, low investment
Medium Scale (30–100 t/h)
Vibrating feeder + drum scrubber + hydrocyclone + centrifugal concentrator + shaking table
High recovery rate, stable production
Large Scale (100–500 t/h)
Integrated mobile washing plant + multi-stage centrifugal concentrators + double-deck shaking tables
High automation, suitable for large placer gold mines
Mobile Alluvial Gold Plant
Trailer-mounted integrated unit: screening + washing + separation integrated
Movable, quick installation, suitable for scattered ore spots
4. Technical Advantages
High recovery rate: effective for coarse, medium and fine gold particles
Mercury-free & pollution-free: physical gravity separation, meets environmental requirements
Water recycling: saves water resources, reduces discharge
Simple operation: low labor cost, easy maintenance
Flexible configuration: customizable for different ore properties, output and site
5. Customization Service
We can provide turnkey alluvial gold washing plant solution including:
Ore test & beneficiation test
Process design & equipment selection
On-site installation & commissioning
Worker training & after-sales support
