1. PAINPOINT DRIVEN OPENING

Are you scaling your alluvial or eluvial gold mining operation and finding that your washing and recovery setup is the bottleneck? Operational challenges with conventional systems directly impact your bottom line. Consider these common issues:
Inconsistent Throughput: Feed variability causes blockages and surges, preventing you from consistently achieving the rated 500 TPH, leading to lost production time.
High Water & Power Consumption: Inefficient scrubbing and screening modules require excessive water recirculation and pump horsepower, escalating operational costs in remote sites.
Fine Gold Losses: Inadequate retention time in sluices or poor trommel/screen classification allows micron and fine gold to escape, reducing overall recovery rates.
Excessive Downtime for Maintenance: Poorly constructed feed hoppers, trommels, and scrubbers suffer from wear and mechanical failure, causing unplanned stoppages.
Rigidity to Feed Changes: Fixed plant designs struggle to adapt to changes in clay content, gravel size, or feed grade without significant manual adjustment and process downtime.

Is your current plant truly optimized for maximum availability and return on investment at a 500 TPH scale? The solution requires a system engineered not just for capacity, but for continuous, efficient, and reliable operation under demanding conditions.

2. PRODUCT OVERVIEW

This product is a complete, skidmounted or modular 500 TPH Gold Mining Washing Plant, designed for the primary washing, scrubbing, screening, and gravity concentration of alluvial and placer gold deposits. It is a turnkey solution for operations requiring highvolume processing of unconsolidated materials.

Operational Workflow:
1. Feed & PreScreening: Runofmine material is uniformly fed via a vibrating grizzly feeder, removing oversize rocks (+75mm) before the scrubber section.
2. Aggressive Scrubbing & Liberation: A heavyduty rotary scrubber thoroughly breaks down clays, cemented gravels, and oxides to liberate gold particles from the gangue material.
3. Precise Particle Classification: The discharged slurry passes over vibrating screens or a trommel screen to separate the feed into coarse waste rock (+10mm), processible gravels (210mm), and fine sands/slimes (2mm) containing gold.
4. HighCapacity Gravity Concentration: The goldbearing sands are routed through a series of highrecovery sluices or centrifugal concentrators designed for highvolume feed to capture fine and liberated gold.
5. Tailings Management & Water Handling: Waste streams are managed via slurry pumps and pipelines; process water is clarified in a settling system for recirculation.

Application Scope & Limitations:
Ideal For: Largescale alluvial/placer operations, eluvial deposits with clay content, construction sand & gravel operations with byproduct gold recovery.
Limitations: Not suitable for hard rock (lode) ore processing. Feed size is typically limited to 200mm. Optimal operation requires a consistent feed source; highly variable feedstock may reduce efficiency.

3. CORE FEATURES

Modular Skid Design | Technical Basis: Preengineered structural steel skids with integrated walkways and plumbing | Operational Benefit: Reduces site installation time by up to 60%, minimizes civil works cost, allows for future plant relocation | ROI Impact: Faster commissioning accelerates revenue generation; portability protects longterm asset value.

HeavyDuty Scrubber Module | Technical Basis: Long drum with internal lifters designed for optimal retention time (23 minutes) and cascading action | Operational Benefit: Ensures complete disintegration of claybound conglomerates for maximum gold liberation | ROI Impact: Directly increases recoverable gold yield from complex feeds.

Tier4 Final / EU Stage V Power Unit Integration | Technical Basis: Centralized dieselelectric power generation or directdrive hydraulic systems meeting global emissions standards | Operational Benefit: Singlepoint fueling and maintenance; operational compliance in environmentally sensitive regions | ROI Impact: Reduces fuel consumption by 1520% versus older gen sets; eliminates compliance risks.

Advanced Water Recycling System | Technical Basis: Multistage settling ponds or clarifier tanks with polyurethane plate packs | Operational Benefit: Recovers up to 85% of process water for reuse; minimizes freshwater intake requirements | ROI Impact: Drastically cuts water sourcing costs and tailings dam volume—critical in arid regions.

PLCBased Process Monitoring | Technical Basis: Centralized control panel monitoring motor loads, feed rates, and pump pressures | Operational Benefit: Enables realtime adjustment by operators to maintain optimal throughput and identify mechanical issues early | ROI Impact: Prevents catastrophic failures; allows one operator to manage multiple plant sections.

HighRecovery Sluice System | Technical Basis: Cascading riffle design with expanded metal mesh over miner’s moss on a closed recirculation loop | Operational Benefit: Provides high recovery rates across a broad range of particle sizes, including fine gold below 100 micron | ROI Impact: Maximizes financial return per ton processed; field data shows <5% loss in target size fraction.

AbrasionResistant Lining Package | Technical Basis: Wear plates on feed chutes and highdensity polyethylene (HDPE) lining in critical wear areas | Operational Benefit: Extends service life of highabrasion components by over 300% compared to mild steel | ROI Impact: Lowers spare parts inventory cost and reduces downtime associated with wear maintenance.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (500 TPH Plant) | Our 500 TPH Gold Mining Washing Plant Solution | Advantage (% Improvement) |
| : | : | : | : |
| Effective Availability (%)| 8085% (downtime for wear/blockages)| >92% (robust design & easy access) |>8% increase in operating hours |
| Water Consumption (m³/ton)| ~3.5 m³/ton recirculated| ~2.8 m³/ton recirculated |>20% reduction in pump load & makeup water |
| Fine Gold Recovery (100µ)| Highly variable; often 85% |>15% increase in captured value |
| Installation & Commissioning| 812 weeks with extensive civils| 46 weeks on prepared pad |>40% faster timetoproduction |
| Avg. Power Draw (kW)| ~750 kW (inefficient drive systems)| ~650 kW (optimized hydraulics & motors)| >13% reduction in fuel/direct energy cost |

5. TECHNICAL SPECIFICATIONS

Nominal Capacity: 500 metric tons per hour (dry feed basis).
Feed Size Range: Up to 200mm optimal; grizzly removes +75mm oversize.
Scrubber Drum Dimensions: Diameter x Length tailored for application (~3m x ~12m).
Power Requirements: Total installed power ~650 kW. Options include:
Diesel Generator Set (Tier4 Final)
Electric Motor Drive (400V/50Hz or 480V/60Hz)
Hybrid DieselElectric System
Material Specifications: Primary structure ASTM A36 steel; critical wear areas lined with AR400 steel plate or HDPE; screen cloths hightensile carbon steel.
Physical Dimensions (Modular): Configured across multiple transportable skids (~12m L x 3m W x 4m H per major skid).
Environmental Operating Range: Designed for ambient temperatures from 20°C to +50°C; dust suppression system included as standard.

6. APPLICATION SCENARIOS

West African Alluvial Gold Operation

Challenge A largescale contractor needed consistent throughput on a site with highly variable clay content causing frequent plugging in their existing trommel system.
Solution Implementation of our primary washing plant featuring the heavyduty scrubber module followed by vibrating screens instead of a trommelonly setup.
Results Achieved sustained throughput at design capacity of >480 TPH despite clay fluctuations; reduced unscheduled downtime related to blockages by over 90%; increased overall project profitability through reliable output.

Southeast Asian Riverine Placer Deposit

Challenge An established miner faced significant fine gold losses (87%, significantly boosting overall ounces recovered per quarter without increasing stripping ratio.

7. COMMERCIAL CONSIDERATIONS

Our commercial approach is structured around flexibility:

Equipment Pricing Tiers
1. Core Plant Package Includes primary feeder scrubber screen modules basic sluices structural frames walkways
2 Optimized Recovery Package Adds enhanced centrifugal concentrators advanced control system instrumentation
3 Turnkey Commissioning Package Full delivery installation supervision commissioning spares starter kit

Optional Features Upgrades include onboard water clarification units automated greasing systems remote monitoring telemetry satellite communications coldclimate enclosures

Service Packages Choose from annual preventative maintenance plans full parts kits guaranteed response times technical operator training programs

Financing Options We work with international export credit agencies equipment finance partners offering leasetoown structures projectbased financing solutions tailored capital expenditure requirements

8.FAQ

Q What level site preparation is required before delivery?
A A compacted level pad equivalent area required laydown assembly essential Access roads capable supporting heavy truck transport final position must be prepared Client responsible utilities connections fuel supply local labor assistance

Q How does this plant handle variations material size distribution?
A The combination vibrating grizzly feeder primary scrubber provides significant buffer capacity absorb surges Modular screen decks can be changed during scheduled maintenance adjust product sizing if deposit characteristics change substantially

Q What typical operational crew required run this washing plant?
A Efficiently operated one loader operator feeding plant one control room operator monitoring entire process Additional ground personnel recommended routine inspections cleaning concentrate collection Total crew varies depending local conditions automation level selected

Q Are spare parts readily available internationally?
A Yes We maintain standardized component inventory using globally sourced bearings gearboxes motors hydraulic parts Expedited shipping available all critical locations Comprehensive manual provided includes detailed parts lists supplier crossreferences

Q Can this system integrated existing processing circuit?
A Yes Designed modular integration Can accept feed existing crushing circuit can discharge screened gravels existing stockpile system Tailings slurry can be directed existing settlement ponds Primary consideration ensuring balance capacity between units

Q What expected lifespan major components?
A Structural components designed minimum year service life Highwear items like scrubber lifters screen cloths sluice riffles consumable Lifespan depends directly abrasiveness material processed but replacement schedules provided initial documentation