1. PAINPOINT DRIVEN OPENING

Are you scaling up operations or replacing aging infrastructure, only to be constrained by throughput bottlenecks and inconsistent recovery rates? Managing a hightonnage gold operation presents distinct challenges that directly impact your bottom line. Consider these common operational hurdles:

Throughput Inconsistency: Can your current plant reliably process 500 tonnes per hour of variable feed material without frequent clogging, bypassing, or loss of payable gold to tailings?
High Operational Expenditure: Are you facing escalating costs from excessive water consumption, high reagent use in downstream processes due to poor scrubbing, and laborintensive manual cleanup?
Excessive Downtime: How much production is lost annually to maintenance on complex, multistage washing systems that require frequent component replacement and adjustment?
Environmental & Tailings Management: Is your settling pond capacity being strained by inefficient solids separation, leading to water recovery challenges and increased environmental liability?

The central question for plant managers is this: how can you achieve stable, highvolume throughput with maximized gold recovery while controlling operational costs and system reliability? The answer lies in a purposeengineered washing and preconcentration circuit.

2. PRODUCT OVERVIEW

The Wholesale 500 TPH Gold Mining Washing Plant is a complete, modular processing system designed for alluvial, elluvial, or weathered hard rock deposits. Its primary function is to liberate gold from claybound or agglomerated ore, remove oversized waste material, and produce a cleaned, concentrated feed for downstream recovery processes such as gravity circuits or leaching.

Operational Workflow:
1. Primary Feed & Scrubbing: Runofmine (ROM) material is fed into a robust scrubber trommel where intense agitation breaks down clay matrices and dissolves agglomerates.
2. Sizing & Waste Removal: The scrubbed material is classified; oversize (typically +75mm) barren waste rocks are ejected via conveyor, while undersize slurry proceeds.
3. Primary Concentration: The slurry passes through a series of gravity concentrators (e.g., sluices, jigs) to recover liberated coarse and fine gold.
4. Tailings Management & Water Clarification: The processed slurry enters a dewatering system (e.g., hydrocyclones, thickeners) where solids are compacted for stable tailings disposal, and clarified water is recycled to the plant head.

Application Scope & Limitations:
Ideal For: Largescale alluvial operations, saprolitic (weathered) gold deposits with high clay content, and projects requiring reliable preconcentration before milling/CIL.
Limitations: Not suitable for unweathered hard rock ore requiring primary crushing. Recovery efficiency for ultrafine (<100 mesh) gold may require supplementary downstream methods.

3. CORE FEATURES

HeavyDuty Scrubber Module | Technical Basis: Hightorque drum with internal lifters and spray bars | Operational Benefit: Ensures complete disintegration of claybound nuggets and efficient washing of gravels at full 500 TPH feed rate | ROI Impact: Reduces gold loss to tailings from locked particles; improves downstream recovery efficiency by up to 25% on clayrich ores.

Modular TrommelScreen Classifier | Technical Basis: Variablespeed drive with interchangeable screen panels | Operational Benefit: Allows precise control over material retention time and quick adjustment of cutpoint size for varying feed conditions | ROI Impact: Minimizes bypass of valuable material; reduces wear on downstream pumps by removing oversized waste early.

Integrated Primary Gravity Circuit | Technical Basis: Laminar flow sluices with optimized riffle design followed by pulsating jig units | Operational Benefit: Captures a broad spectrum of gold particle sizes (from nugget to fine) immediately after liberation | ROI Impact: Produces a primary concentrate, reducing the volume of material requiring intensive cyanidation, thereby cutting reagent costs.

ClosedLoop Water Management System | Technical Basis: Highcapacity hydrocyclone battery feeding into a compact thickener | Operational Benefit: Recovers up to 90% of process water for immediate reuse; produces denser tailings for safer storage | ROI Impact: Drastically reduces freshwater intake requirements and lowers environmental permitting complexity.

Centralized PLC Control & Monitoring | Technical Basis: Industrial programmable logic controller with HMI touchscreen displaying motor loads, feed rates, and pump pressures | Operational Benefit: Enables oneoperator oversight of the entire washing plant circuit for anomaly detection | ROI Impact: Lowers labor costs per tonne and prevents catastrophic failure through early warning diagnostics.

AbrasionResistant Liner Package | Technical Basis: Highchrome alloy or replaceable rubber liners in all highwear zones (scrubber drum, slurry launders) | Operational Benefit: Extends service intervals in highly abrasive silica environments by 35x compared to mild steel | ROI Impact: Reduces maintenance downtime and spare parts inventory cost over the plant's lifecycle.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (Typical Plant) | Our 500 TPH Washing Plant Solution | Advantage (% Improvement) |
| : | : | : | : |
| Overall Gold Recovery Efficiency (ClayRich Ore) | 7080% (in washing stage) | 8892% (in washing stage) | +15% Relative Improvement |
| Water Consumption per Tonne| 3.5 4.5 m³/tonne processed| 2.0 2.5 m³/tonne processed| ~40% Reduction |
| Mean Time Between Failure (MTBF) Critical Components| ~8001,200 hours| >2,000 hours| >65% Increase |
| Plant Setup / Commissioning Time (Modular Design)| 46 weeks| 23 weeks| ~50% Faster Deployment |
| Operational Labor Requirement| Typically 34 personnel/shift| Centralized control allows for 12 personnel/shift oversight| ~50% Reduction |

5. TECHNICAL SPECIFICATIONS

Design Capacity: Nominal 500 tonnes per hour (dry feed basis). Capable of peaks up to 550 TPH.
Power Requirements: Total connected load approximately 850 kW. Primary supply recommended at 1000 kVA / 400V or medium voltage as required.
Material Specifications: Main structural steel ASTM A36; Highwear components in AR400 steel or NiHard cast iron; Corrosionresistant polyurethane/ceramic liners in slurry lines.
Physical Dimensions (Modular):
Scrubber Module: L12m x W4m x H5m
Screening & Gravity Module: L15m x W6m x H4m
Dewatering & Water Management Module: L10m x W8m x H6m
Environmental Operating Range: Designed for ambient temperatures from 20°C to +50°C. Dust suppression system included. Can be housed within a structural building or operated open with appropriate weather protection for electricals.

6. APPLICATION SCENARIOS

West African Alluvial Gold Operation

Challenge A largescale alluvial concession was experiencing sub75% recovery rates due to inefficient clay removal and rapid screen blinding in their existing trommel setup.
Solution Implementation of the Wholesale 500 TPH plant featuring the heavyduty scrubber module followed by a twostage screening system.
Results Within one month of commissioning:
Steadystate throughput achieved at design capacity of >490 TPH.
Overall project recovery efficiency increased from 89%.
Screen blinding incidents reduced by over .95%.

Weathered Hard Rock PreConcentration Plant

Challenge A mill processing transitional oxide/sulfide ore faced high cyanide consumption due to poor prewashing that allowed carbonaceous clays into the leach circuit.
Solution Installation upstream of the existing crusher/ball mill circuit as a dedicated washing/preconcentration stage.
Results Field data showed:
Production of a cleaned gravel feed reduced grinding media consumption by .
Cyanide consumption in the downstream CIL circuit decreased by .
A daily primary gravity concentrate yielded an additional revenue stream from coarse free gold capture.

7. COMMERCIAL CONSIDERATIONS

Our Wholesale model provides significant capital cost advantages through standardized modular engineering while retaining core performance integrity.

Pricing Tiers:

1.Basic Plant Package Includes core scrubber screening module primary gravity sluices basic water recycling cyclone package PLC controls

2.Enhanced Recovery Package Adds pulsating jig units enhanced instrumentation automated dosing system

3.Turnkey Premium Package Includes full dewatering thickener advanced water treatment plant installation supervision commissioning support extended warranty

Optional Features Mobile skidmounted versions dualfeed capability specific liner material upgrades remote monitoring telemetry package

Service Packages Available annual maintenance contracts critical spares kits onsite technical training programs

Financing Options We work with international export credit agencies equipment finance partners Project financing support can be structured based on client requirements

8.FAQ

Q What type of feed size can this plant accept
A The standard configuration accepts ROM feed up tomaterial Larger feeds may require grizzly prescreening which can be supplied as an option

Q How does this plant integrate with our existing carboninleach CIL circuit
A It acts as an upstream pretreatment unit delivering washed sized gravels directly into your crushing circuit This typically improves leach kinetics reduces reagent consumption protects pumps from abrasion

Q What are the key factors affecting overall recovery rate
A The two most critical factors are adequate scrubbing retention time based on your specific clay content ensuring proper sizing classification before gravity concentration Pilot testing on your bulk sample provides definitive data

Q What is the expected delivery lead time
A For standard wholesale modules lead time is typically weeks exworks following order confirmation Custom modifications may extend this timeline which will be detailed during project planning

Q Do you provide performance guarantees
A Yes we offer guaranteed throughput capacity based on agreedupon feed specifications Guaranteed mechanical availability figures are also provided within defined service intervals