1. PAINPOINT DRIVEN OPENING

Are you scaling up your alluvial or eluvial gold operation and hitting critical bottlenecks? A 500 TPH bulk processing plant is a major capital investment, and its performance dictates your entire project's profitability. Common challenges at this scale include:

High Downtime from Blockages: Inefficient screening and scrubbing lead to frequent material jams in trommels or feed systems, costing hours of lost production daily.
Inconsistent Recovery Rates: Variable feed material can overwhelm static washing systems, causing fine gold and highdensity minerals to report to tails, directly impacting revenue.
Excessive Water & Power Consumption: Outdated plant designs operate at fixed rates, consuming vast resources even with lower feed grades, eroding margins.
Rapid Wear & Maintenance Costs: Underspecified components in highabrasion environments fail prematurely, leading to unscheduled shutdowns and high spare parts expenditure.
Complex Setup & Relocation: Modular plants that require excessive assembly time or specialized civil works delay commissioning and increase deployment costs.

Is your current setup struggling with throughput stability? Are you seeking a washing plant fabricator who delivers robust engineering focused on uptime and tangible return on investment?

2. PRODUCT OVERVIEW

The Bulk 500 Tph Gold Mining Washing Plant is a heavyduty, modular processing system engineered for continuous, highvolume recovery of gold from alluvial, colluvial, and weathered deposits. It is designed for operations where feed material requires significant scrubbing, clay breakdown, and efficient separation of gold from gravels.

Operational Workflow:
1. Primary Feed & Scalping: Runofmine material is uniformly fed via a heavyduty apron feeder to a primary scalping screen, removing oversize rocks (+75mm).
2. Aggressive Scrubbing & Liberation: The sub75mm material reports to a largediameter rotary scrubber/trommel, where intense tumbling and highpressure water jets break down clays and cemented aggregates, fully liberating gold particles.
3. Primary Concentration: The scrubber discharge is screened, with undersize (10mm) slurry directed to a primary gravity concentration circuit (e.g., sluices, jigs). Oversize gravels are washed and rejected.
4. Tailings Management & Water Handling: The tailings stream is dewatered via linear motion or highfrequency screens for responsible disposal or stacking. Process water is recirculated from settling ponds to minimize fresh water demand.

Application Scope & Limitations:
Scope: Ideal for free gold recovery in alluvial deposits, riverine operations, and old tailings reprocessing with moderate clay content. Effective where the majority of gold is +75 microns.
Limitations: Not suitable for hard rock ore processing or deposits requiring chemical leaching (CIP/CIL). Efficiency declines with excessive silt/clay content (>30%) without preconditioning. Performance is contingent on consistent feed control and adequate water supply.

3. CORE FEATURES

HeavyDuty Apron Feeder | Technical Basis: Overlapping manganese steel flights driven by rugged reduction gearbox | Operational Benefit: Provides consistent, controllable feed of sticky or large material to the scrubber, eliminating surge loads that cause downstream blockages | ROI Impact: Prevents costly downtime due to feed issues; extends scrubber liner life by up to 25% through even wear distribution.

LogwasherStyle Rotary Scrubber | Technical Basis: Long drum (68m), low RPM with internal lifters and reinforced discharge spirals | Operational Benefit: Ensures optimal retention time (23 minutes) for complete clay dissolution and aggregate breakdown without overgrinding fragile gold | ROI Impact: Maximizes gold liberation; field data shows a 515% improvement in overall recovery compared to shorter trommel designs in claybound materials.

Modular PlugandProcess Design | Technical Basis: Skidmounted modules with prealigned flanges integrated piping/ wiring looms | Operational Benefit: Reduces onsite installation and commissioning time from weeks to days. Modules can be relocated as mining faces advance | ROI Impact: Cuts mobilization costs by an estimated 30% and accelerates timetoproduction.

HighCapacity Gravity Concentration Circuit | Technical Basis: Multistage sluice system with optimized riffle geometry and modular design for easy cleanup | Operational Benefit: Provides high mass rejection while capturing fine gold particles down to 100 mesh efficiently during continuous operation | ROI Impact: Directly increases revenue through higher recovery yield; reduces the volume of material for final concentration.

Intelligent Water Management System | Technical Basis: Centrifugal pump arrays with variable frequency drives (VFDs) tied to sump level sensors | Operational Benefit: Automatically matches water flow to feed rate maintaining optimal slurry density while minimizing total consumption | ROI Impact: Reduces fresh water pump load by up to 40%, lowering power costs and environmental footprint.

AbrasionResistant Material Specification | Technical Basis: Critical wear zones lined with AR400 steel plate; pipelines use SCH80 piping with ceramiclined elbows | Operational Benefit: Dramatically reduces wearthrough failures in highimpact areas like screen decks pump boxes| ROI Impact Lowers annual spare parts inventory cost by an estimated 20% extends major refurbishment intervals

Centralized Greasing & Monitoring Points| Technical Basis Manifolded lubrication lines running from central stations to all major bearings| Operational Benefit Enables safe rapid routine maintenance reducing bearing failure risk due to underlubrication| ROI Impact Increases mean time between failures (MTBF) for rotating components supporting higher plant availability

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard for 500 TPH Plants | Our Bulk 500 Tph Gold Mining Washing Plant Solution | Advantage (% Improvement) |
| : | : | : | : |
| Effective Clay Breakdown | Singlestage trommel scrubber (~1.5 min retention) Twostage logwasher/scrubber system (~2.5 min retention)| +67% Retention Time |
| Plant Availability| ~8588% due unplanned maintenance ~9295% through robust design centralized maintenance features| +7% Uptime |
| Water Consumption (m³/ton)| ~3 3 m³/ton processed ~2 5 m³/ton processed via VFDcontrolled recirculation| 20% Water Use |
| OnSite Commissioning Time| 46 weeks for bolted assembly ~1014 days for preassembled skids| 65% Deployment Time |
| Wear Life on Primary Scrubber Liners| AR360 steel lasting ~1200 hours AR400 steel lasting ~1500+ hours in comparable duty +25% Liner Life |

5. TECHNICAL SPECIFICATIONS

Nominal Processing Capacity: 500 tonnes per hour (dry feed).
Feed Material Size: Up to 250mm lump size (recommended max feed).
Power Requirements: Approx. 750 900 kVA total connected load dependent on pumping distance Includes main scrubber drive feeders screens pumps
Key Material Specifications
Primary Scrubbing Drum Diameter/Length mm
Apron Feeder Width/Length mm
Primary Screen Area m²
Main Process Pumps SCH80 abrasionresistant slurry pumps
Structural Steel Fabricated from S355JR grade steel
Physical Dimensions (Modular): Configured across transportable skids Max skid dimensions comply with standard road transport regulations
Environmental Operating Range Ambient Temperature Range °C Humidity Up dust suppression required

6 APPLICATION SCENARIOS

West African Alluvial Gold Operation Challenge The client faced highly variable clay content causing severe blinding in their existing trommel leading daily downtime inconsistent throughput below TPH Solution Implementation of our Tph plant featuring the logwasherstyle scrubber automated variablespeed feeder Results Achieved consistent TPH throughput even with sticky feeds Plant availability increased from % Recovery improved by an estimated % due better liberation

Southeast Asian Riverine Deposit Expansion Challenge Expanding production required a new plant that could be relocated seasonally as mining moved along the river valley minimizing setup time Solution Deployment of our fully skidded modular Tph washing plant Results Full plant relocation recommissioning achieved within days compared previous monthlong process Water recycling system reduced seasonal freshwater sourcing challenges by %

Legacy Tailings Reprocessing Project Challenge Reprocessing old dredge tailings required efficient screening fine gold recovery low operating cost per ton Solution A tailored Tph plant emphasizing highfrequency vibrating screens enhanced fine recovery sluices Results Processing cost per ton reduced by % compared contractor estimates Payback period on capital achieved months ahead schedule

7 COMMERCIAL CONSIDERATIONS

Equipment pricing tiers are structured around core configuration optional upgrades

Base Plant Package Includes primary feeding scrubbing screening primary gravity concentration basic controls Designed for straightforward deposits Optional Features Upgrade package may include secondary fine gold concentrators e g centrifugal concentrators advanced PLC automation remote monitoring telemetry enhanced dust suppression covers extended walkways access platforms

Service Packages Standard warranty covers months parts labor Comprehensive annual maintenance contracts available providing scheduled inspections priority support discounted spare parts Financing Options We work with international equipment finance partners offer flexible solutions including operating leases finance leases milestonebased project financing assist capital expenditure planning

8 FAQ

What are the primary infrastructure requirements for this Tph plant A stable feed source frontend loader ROM pad adequate fresh makeup water supply settling pond area approx hectares return water pumps electrical substation capable delivering kVA

How does the plant handle variations in feed grade or clay content The variablespeed apron feeder logwasher retention time allow operators adjust processing parameters realtime maintain optimal performance without damaging recovery equipment

What is the expected operational workforce requirement For continuous shift operation typical crew consists loader operator control room attendant field technician per shift additional supervision maintenance personnel

Are your plants compatible with existing upstream crushing downstream refining circuits Yes standard discharge conveyor heights slurry outlet connections designed interface common auxiliary systems Custom engineering available ensure integration specific layouts

What kind of training operational support provided We provide comprehensive commissioning supervision detailed operational manuals onsite training key personnel Remote technical support available via dedicated channels Spare parts lists recommended stock holdings provided