1. PAINPOINT DRIVEN OPENING

Are you managing a highvolume gold operation where consistent throughput and recovery are compromised by inefficient material handling and washing? Operational bottlenecks in your primary washing and scrubbing stage directly impact your entire processing line, leading to significant financial losses. Consider these common challenges:
Throughput Inconsistency: Fluctuating feed grades and claybound materials cause blockages and reduce effective processing rates below the designed 500 TPH, leaving potential revenue buried in stockpiles.
Excessive Downtime & Maintenance: Inferior scrubber designs and wear materials lead to frequent mechanical failures, unplanned stoppages for liner changes, and high ongoing labor costs for upkeep.
Incomplete Liberation of Gold: Inadequate scrubbing action fails to break down cemented agglomerates or dissolve clay matrices, trapping fine gold and reporting it to tailings, thereby lowering overall recovery percentages.
High Water & Power Consumption: Inefficient pump systems and drive mechanisms consume excessive utilities, eroding profit margins with every operating hour.

Is your current setup meeting its rated capacity? How much recoverable gold is lost due to inadequate feed preparation? The right 500 TPH gold mining washing plant is not just a piece of equipment; it is the critical foundation for stable, profitable mineral processing.

2. PRODUCT OVERVIEW

The ODM 500 TPH Gold Mining Washing Plant is a heavyduty, modular scrubbing and classification system engineered for alluvial, elluvial, or weathered hard rock deposits. Its primary function is to break down, cleanse, and size raw feed material to prepare liberated goldbearing ore for downstream concentration processes such as gravity separation or cyanidation.

Operational Workflow:
1. Primary Feed & PreScreening: Runofmine (ROM) material is conveyed into a robust grizzly or scalping screen to remove oversize rocks (+75mm) before entering the scrubber.
2. Intensive Scrubbing & Attrition: The core rotary scrubber module employs lifters and a specific pulp density to create a cascading action that abrades ore against itself, effectively disintegrating clays, cemented gravels, and soft oxides.
3. Sizing & Waste Rejection: The scrubbed slurry discharges onto a double or tripledeck vibrating screen, separating material into key size fractions (e.g., +10mm waste gravels, 10mm+2mm sands for gravity circuits, 2mm slimes).
4. Slurry Distribution: Correctly sized fractions are efficiently channeled via laundries or pumps to the next stage of your recovery plant.

Application Scope & Limitations:
Scope: Ideal for alluvial/placer deposits, saprolitic (weathered) gold ores, and deposits with high clay content that cause blinding in crushing circuits.
Limitations: Not designed for competent hard rock primary crushing. Feed size should typically be limited to 200mm. Optimal performance requires adequate water supply for slurry formation.

3. CORE FEATURES

HeavyDuty Rotary Scrubber | Technical Basis: Highstress finite element analysis (FEA) optimized drum design with integral lifters | Operational Benefit: Sustains aggressive tumbling action without structural fatigue under highly abrasive loads; handles variable feed with minimal performance fluctuation | ROI Impact: Extended structural life reduces capital replacement cycles; consistent throughput protects downstream recovery revenue.

Advanced Wear Protection System | Technical Basis: Modular manganese steel or rubber liners with replaceable bolton lifter bars | Operational Benefit: Operators can replace highwear components in sections during scheduled maintenance without full shell access | ROI Impact: Cuts liner replacement downtime by up to 40% compared to welded plate systems; reduces longterm parts inventory costs.

Integrated Screen Module | Technical Basis: HighGforce linear motion vibrating screen mounted directly on scrubber discharge chute | Operational Benefit: Eliminates transfer conveyors between units, reducing spillage points and overall plant footprint; provides precise sizing of liberated material | ROI Impact: Lower installation complexity saves on civil works; improved classification efficiency directs more target fractions to recovery units.

Variable Frequency Drive (VFD) Control | Technical Basis: PLCcontrolled drives on scrubber motor and feed conveyor(s) | Operational Benefit: Allows operators to finetune rotational speed and feed rate in realtime based on ore viscosity and clay content | ROI Impact: Optimizes power draw across different ore types; prevents motor overloads that cause trip delays; estimated 815% energy savings versus fixedspeed drives.

Modular Skid Design | Technical Basis: Plant sections preassembled on heavyduty steel skids with integrated walkways and service platforms | Operational Benefit: Reduces onsite assembly time by up to 60%, minimizing installation labor costs and accelerating commissioning | ROI Impact: Faster timetoproduction generates revenue sooner; simplifies future relocation or plant expansion.

Efficient Slurry Management System| Technical Basis: Strategically placed spray bars with adjustable nozzles within the scrubber barrel and on screens| Operational Benefit: Ensures optimal pulp density for attrition while minimizing total water consumption per ton processed| ROI Impact: Reduces fresh water makeup requirements by an industrytested average of 20%, lowering pumping costs and tailings pond volume.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (500 TPH Class) | ODM 500 TPH Solution | Advantage (% Improvement) |
| : | : | : | : |
| Annual Availability (Scheduled Runtime) | ~8588% | >92% (Projected) | +47% Uptime |
| Liner Life in Abrasive Feeds (Hours) | 1,200 1,800 hrs| 2,200 2,800 hrs| +50% Average Improvement |
| Clay Disintegration Efficiency (%)| ~7080% Liberation| >92% Liberation| +15% Higher Liberation |
| Specific Water Consumption (m³/ton)| ~3.5 4 m³/ton| ~2.8 3.2 m³/ton| ~20% Reduction |
| Installation & Commissioning Time (Weeks)| 812 Weeks from delivery| 57 Weeks from delivery| ~40% Faster Deployment |

_Measured by reduction of +0.5mm agglomerates in discharge._

5. TECHNICAL SPECIFICATIONS

Design Capacity: Nominal 500 metric tons per hour (dry feed basis).
Scrubber Module: Diameter x Length options typically from Ø3.6m x 6m up to Ø4m x 7m depending on retention time requirement.
Drive Power: Scrubber drive motor typically in the range of 250315 kW; total connected plant power approx. 450550 kW.
Screen Module: Doubledeck linear motion screen; size typically from 2.4m x 6m; deck options include polyurethane panels or woven wire mesh.
Material Specifications: Mainframe construction from S355JR steel; critical wear components in AR400 steel or equivalent hardened manganese steel.
Physical Dimensions (Modular): Approximate footprint of core scrubberscreen module is L25m x W10m x H8m.
Environmental Operating Range: Designed for ambient temperatures from 20°C to +50°C; electrical components rated per IP65 standards for dust/moisture protection.

6. APPLICATION SCENARIOS

West African Weathered Saprolite Gold Deposit

Challenge A project faced severe bottlenecks as sticky clay blinded their primary crushers and screens daily reducing effective throughput below 480 TPH Crusher downtime was eliminated Overall plant recovery increased by an estimated due to improved liberation

Alluvial Placer Operation Expansion

Challenge An existing operation using smaller trommel screens could not scale economically beyond 500 TPH with lower manpower requirements per ton processed The improved screening efficiency reduced gold losses in misplaced oversize material

7 COMMERCIAL CONSIDERATIONS

Pricing tiers are structured around configuration complexity:
Tier Basic Package Includes core scrubber singledeck screen skidmounted structure basic electrical controls
Tier Advanced Package Includes doubledeck screen VFDs on major drives prewired PLC control panel advanced wear monitoring sensors integrated water recycling manifold
Tier Turnkey Package Includes full plant modules conveyors slurry pumps sumps detailed installation supervision commissioning services operator training

Optional Features Highpressure wash systems onboard chemical dosing systems for oxide breakdown remote monitoring telemetry packages extended warranty coverage

Service Packages Annual inspection contracts critical spares holding agreements field service engineer support

Financing Options Available through partnered financial institutions including equipment leasing structures milestonebased project financing

8 FAQ

What are the key site requirements for installing this washing plant?
A level prepared pad capable of supporting dynamic loads adequate fresh water supply sufficient electrical power connection at medium voltage level frontend loader or conveyor system for feeding ROM material

How does this system integrate with our existing gravity circuit jigs centrifuges etc?
The ODM plant is designed as a preparatory stage It will deliver correctly sized screened material via chutes or pumps directly into your existing concentration equipment Engineering specifications ensure compatibility of slurry density flow rates particle size distribution

What is the expected operational manpower requirement?
The washing plant itself can be operated continuously by one control room operator General inspections routine greasing require one technician shift day Liner changes are planned maintenance events requiring a small crew typically every months depending on abrasiveness

Can you provide performance guarantees?
Performance guarantees related to throughput clay breakup efficiency availability are offered based on representative test work conducted on clientsupplied bulk samples These form part of the commercial agreement

What is the typical lead time from order placement?
Lead times vary based on configuration but standard modular designs have typical manufacturing lead times between weeks following final design approval