30 TPH Gold Wash Plant with Trommel

The Trommel Type Gold Wash Plant is a complete mineral processing system designed for alluvial gold recovery. It integrates multiple stages including screening, scrubbing, gravity separation, and concentration.
The plant processes raw material containing gravel, clay, and sand, and separates gold using a combination of sluice systems and centrifugal concentrators. It is designed for continuous operation and efficient recovery of both coarse and fine gold particles.

WORKING PRINCIPLE:

• The plant operates through multiple sequential stages

Process Flow:

• Feeding & Screening

• Material fed through a grizzly

• Large rocks removed manually

• Scrubbing

• Material enters scrubber

• Clay and silt are broken down

• Screening

• Vibrating screen separates:

• Oversize (>10 mm) → rejected

• Medium fraction (2–10 mm) → sluice

• Fine fraction (<2 mm) → concentrators

• Gravity Separation

• Sluice recovers coarse gold

• Centrifugal units recover fine gold

• Tailings Disposal

• Waste material discharged

• Concentrate Collection

• Gold collected from sluice and concentrators

PROCESS DESIGN ADVANTAGES:

• Efficient separation of both coarse and fine gold
• Better clay handling due to scrubbing stage
• Reduced gold loss compared to simple sluice systems
• Ability to process large volumes continuously
• Integrated system reduces need for multiple standalone units

AUXILIARY / OPTIONAL EQUIPMENT:

• Oversize conveyor
• Water pump system
• Shaking table for final upgrading
• External water filtration system (~50 mesh recommended)

LIMITATIONS:

• Performance depends on:
• Proper feed size classification
• Adequate water supply
• Efficient slurry mixing
• Capacity limited by fine material processing stage
• Requires proper installation height for tailings flow

INSTALLATION & OPERATION CONSIDERATIONS:

• Key Requirements:

• Stable installation base

• Adequate water supply (clean or filtered)

• Proper slurry feed consistency

• Sufficient slope for tailings discharge

• Important Notes:

• Poor slurry mixing can reduce recovery

• Insufficient water pressure affects performance

• External filtration may be required if water is dirty

IMPORTANT TECHNICAL CONCEPT:

• Scrubber vs Trommel

• Scrubber:

• High RPM

• Breaks clay using particle interaction

• Trommel:

• Low RPM

• Used mainly for screening

Material Types:

• Gravel
• Laterite
• Saprolite
• Clay-rich alluvial deposits

Mining Applications:

• Alluvial gold mining
• Placer mining
• Bulk material processing
• Gold recovery from mixed deposits

Capacity:

• Nominal capacity: 30 tons per hour (TPH)
• Effective sand capacity: ~20 TPH (≤ 2 mm material)

Feed Size Distribution:

• Up to 75 mm → enters scrubber

• 10 mm → rejected as oversize

• 2 mm – 10 mm → processed in sluice
• <2 mm → processed in centrifugal concentrators

Operating Parameters:

• Feed type: Alluvial material (slurry form)
• Pulp density: typically ~20–40% solids
• Water supply: required via manifold system

• Complete system: scrubbing + screening + gravity separation
• Efficient handling of clay-rich materials
• Dual recovery system:
• Sluice (coarse gold)
• Centrifugal concentrators (fine gold)
• Continuous operation capability
• Built-in feed regulation and bypass system
• Modular design (can include conveyors, pumps, tables)
• High durability with heavy-duty construction
• Flexible setup with optional accessories