1. PAINPOINT DRIVEN OPENING

Are you facing escalating operational costs and unpredictable recovery rates in your highvolume gold operation? Managing a 500 TPH throughput presents distinct challenges that directly impact your bottom line. Common pain points include:

High Water Consumption & Tailings Management: Traditional scrubber and trommel setups can require excessive water, increasing procurement costs and creating large, difficulttomanage slurry volumes.
Frequent Downtime for Maintenance: Robust clay or cemented gravels can cause blockages and excessive wear in conventional washing plants, leading to unplanned stoppages and lost production.
Inefficient Fines Recovery: Significant gold loss in the 1mm fraction due to inadequate scrubbing or poor sluice/sluice design represents a direct revenue leak.
High Operational Manning: Plants requiring constant manual intervention for feed monitoring, oversize removal, or system balancing drive up labor costs and introduce human error.
Difficulty in Handling Variable Feed: Fluctuations in clay content or particle size distribution can overwhelm static systems, causing bottlenecks and reducing overall plant efficiency.

How do you secure consistent recovery above 95% while controlling water usage and minimizing unscheduled maintenance? The solution requires a purposeengineered system designed for scale and resilience.

2. PRODUCT OVERVIEW

The 500 TPH Gold Mining Washing Plant is a modular, heavyduty processing system engineered for alluvial and eluvial deposits. It is designed to liberate gold from gravels, clays, and sands at an industrial scale, producing a concentrated slurry for downstream recovery.

Operational Workflow:
1. Primary Feed & Scalping: Runofmine material is uniformly fed via apron feeder to a primary scalping screen, removing large oversize (+75mm) before the washing circuit.
2. Aggressive Scrubbing & Liberation: Material reports to a largediameter, longlength rotary scrubber where intense attrition breaks down clays and cemented aggregates, fully liberating gold particles.
3. Primary Size Classification & Recovery: Discharge from the scrubber is screened on a double or tripledeck vibrating screen. Oversize (+8mm) is rejected as waste. Midsize material (18mm) is routed to coarse mineral jigs or sluices. The undersize (1mm) slurry proceeds to fines recovery.
4. Fines Concentration: The 1mm slurry is processed through a bank of hydrocyclones to desilt, with the underflow reporting to dedicated fine gold recovery units such as enhanced gravity concentrators or specialized shaking tables.
5. Tailings Management: Waste streams are combined and can be directed to a dewatering screen or thickener for responsible water recycling and tailings disposal.

Application Scope & Limitations:
Ideal For: Largescale alluvial/eluvial gold operations, riverine deposits, old terrace gravels, and weathered saprolite material with high clay content.
Limitations: Not suitable for hard rock (lode) ore without prior crushing. Feed particle size should typically be less than 200mm. Performance is contingent on accurate feed characterization and proper water supply planning.

3. CORE FEATURES

HeavyDuty Rotary Scrubber | Technical Basis: High torque drive system with internal lifters | Operational Benefit: Effectively breaks apart tough clay balls and cemented gravels without bridging, ensuring full gold liberation | ROI Impact: Reduces gold losses locked in conglomerates; increases overall recovery by 25%.

Modular "PlugandPlay" Design | Technical Basis: Bolttogether skidmounted modules with prewired electrical panels | Operational Benefit: Reduces site installation time by up to 60%, minimizes civil works cost | ROI Impact: Faster commissioning allows revenue generation to begin weeks earlier.

Intelligent Water Recycling Circuit | Technical Basis: Integrated cyclone packs and dewatering screens with sump and pump management | Operational Benefit: Cuts fresh water consumption by up to 70% through closedloop recycling | ROI Impact: Lowers water procurement costs significantly; reduces environmental footprint and tailings pond volume.

Centralized Process Control Station | Technical Basis: PLCbased control panel with feed rate monitors, pressure gauges, and motor amperage readouts | Operational Benefit: Enables singleoperator monitoring of entire plant performance; provides early warning for maintenance issues | ROI Impact: Lowers labor requirements; prevents catastrophic failure through trend monitoring.

Duplex Mineral Jig Recovery System | Technical Basis: Two largecapacity jigs arranged in series for coarse gold recovery | Operational Benefit: Provides high recovery rate for +1mm gold particles with continuous concentrate discharge | ROI Impact: Delivers consistent, highgrade concentrate; reduces cleaning frequency versus singlestage units.

AbrasionResistant Lining Package | Technical Basis: Highchrome wear plates on scrubber feed chute and critical slurry lines | Operational Benefit: Extends component life in highly abrasive environments by 300400% over standard steel | ROI Impact: Lowers spare parts inventory cost and reduces downtime for liner replacement.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (500 TPH Plant) | Our 500 TPH Washing Plant Solution | Advantage (% Improvement) |
| : | : | : | : |
| Overall Gold Recovery Rate (All Fractions) | Typically 8892% | Consistently achieves 9496%+ (field verified) | +4% Absolute Recovery |
| Fresh Water Consumption (m³/hour) ~ Clayey Feed| ~800 m³/hr (oncethrough systems common)~450 m³/hr (basic recycle)| 92% due to robust design & wear protection~Clayey Feed| +8 Percentage Points |
| Installation & Commissioning Time~Clayey Feed| 810 Weeks~Clayey Feed| 45 Weeks with modular design~Clayey Feed| ~50% Faster |
| Power Consumption per Ton Processed~Clayey Feed| Varies widely~Clayey Feed| Optimized drive packages reduce draw by ~10%~Clayey Feed| ~10% More Efficient |

5. TECHNICAL SPECIFICATIONS

Nominal Processing Capacity: 500 metric tons per hour (dry feed basis).
Feed Size Maximum: 200mm (dependent on scrubber model).
Power Requirements: Approx. 750 900 kW total connected load (depending on configuration). Designed for HV supply (6.6kV /11kV).
Key Material Specifications:
Scrubber Shell & Chutes: Mild steel with replaceable AR400/HighChrome liners.
Screen Decks: Polyurethane or rubber modular panels.
Slurry Pumps: Highchrome alloy wet ends.
Structural Steelwork: ASTM A36 primed and painted.
Physical Dimensions (Approx., modular):
Scrubber Module L x W x H: 25m x 6m x 5m
Screening/Jig Module L x W x H:18m x8m x6m
Fines Recovery Module L x W x H15m x7m x5m
Environmental Operating Range: Designed for ambient temperatures from 20°C to +50°C. Dust suppression sprays standard at transfer points.

6. APPLICATION SCENARIOS

West African Alluvial Gold Project Challenge:

A major operator faced severe claybound gold losses (~30% of total contained gold estimated in 0.5mm fraction) using traditional trommelscrubbers alongside extreme water scarcity requiring costly trucking operations.Solution:
Implementation of our complete washing plant featuring an aggressive scrubbing circuit followed by cyclones feeding enhanced gravity concentrators specifically tuned for fine gold capture within the closedloop water system.Results: Overall plant recovery increased from an estimated ~70% to a measured >94%. Fresh water demand reduced by over twothirds (~65%), eliminating water trucking costs entirely within six months of operation.

South American Eluvial Deposit Challenge:

An engineering contractor needed a rapidly deployable solution for a remote site with a short seasonal operating window (<8 months). The client required minimal onsite construction labor due to location constraints.Solution:
Supply of our fully modular skidmounted washing plant configured into four main transportable sections.Results: Onsite installation time was reduced from an estimated three months using conventional methods to just five weeks from delivery of first module.The plant achieved nameplate capacity within seven days of wet commissioning allowing maximum utilization of the operating season

7 COMMERCIAL CONSIDERATIONS

Pricing tiers are structured around core configuration complexity:

Tier A Base Plant Includes primary scalping rotary scrubber doubledeck sizing screens duplex mineral jigs basic control panel structural walkways

Tier B Advanced Plant Includes all Tier A features plus hydrocyclone pack fines gravity concentrators advanced PLC control system automated reagent dosing optional package

Tier C Customized Turnkey Includes full engineering sitespecific modifications comprehensive instrumentation dust enclosure package commissioning supervision operator training

Optional Features Highfrequency fine screening Derrick stack sizer spiral bank rougher preconcentration unit integrated security lighting camera system remote monitoring telemetry

Service Packages Available Standard warranty includes parts labor months extended service agreements available covering scheduled maintenance inspections critical spare parts kits financing options We work with international equipment finance partners able structure leasepurchase agreements project finance solutions tailored capital expenditure requirements

8 FAQ

What upstream equipment is required? A frontend loader or excavator feeding surge hopper apron feeder essential ensure consistent tonnage feed rate prevent flooding scrubbing circuit Can your plant handle boulders? Primary scalping screen removes oversize mm but significant boulder content may require separate grizzly primary crusher ahead washing plant How quickly can you adjust process parameters variable feed? Centralized control station allows realtime adjustment scrubber speed spray bar pressure jig stroke frequency accommodate changes clay content What typical delivery lead time? For standard configurations lead time ranges months order confirmation exworks Custom designs may require additional engineering time Is operator training provided? Yes comprehensive onsite training covering normal operation troubleshooting basic maintenance included all supply contracts What aftersales support offered? Global network technical support available via phone email Spare parts guaranteed stocked years minimum supported drawings manuals