500 Usine de lavage d'extraction d'or TPH: HighCapacity Alluvial Processing Solutions for Export Markets

Le défi opérationnel: When Throughput Targets Meet Ore Variability

For commercial gold recovery operations processing 500 tonnes par heure, the margin between profitability and loss narrows with every percentage point of recovery inefficiency. Plant managers face a persistent set of interconnected challenges:

• Feed material inconsistency: Claybound conglomerates, lateritic soils, and highmoisture ores cause blinding, colmatage, and reduced screening efficiency, leading to unplanned downtime that can cost $8,000–$15,000 per hour in lost production at 500 Capacité TPH.
• Water management pressure: Environmental compliance regulations in export markets increasingly restrict water consumption and require closedloop systems, yet traditional washing plants consume 3–5 cubic meters of water per ton of feed.
• Recovery losses in fines: Fine gold particles (moins 0.5 mm) are frequently lost in overflow and tailings streams when washing and classification circuits are not properly configured, representing a 5–15% recovery loss that directly impacts payback calculations.
• Component wear and maintenance cycles: Abrasive slurries and highvelocity flows accelerate wear on pumps, cyclones, et supports d'écran, with replacement parts representing 20–30% of annual operating costs.
• Export certification complexity: International buyers require documented compliance with CE, OIN 9001, and regional safety standards, and suppliers without verifiable certification face customs delays and contract penalties.

Is your current washing circuit engineered to sustain 500 TPH throughput while maintaining recovery efficiency above 95%? Can your plant handle feed moisture content up to 20% without sacrificing screening accuracy? Does your equipment package include the documentation required for smooth export logistics and onsite commissioning?

Présentation du produit: Le 500 Usine de lavage d'extraction d'or TPH

Cet ensemble d'équipements est un ensemble complet, skidmounted or modular alluvial gold washing system designed for continuous operation at 500 metric tons per hour feed rate. It integrates feed hopper, scrubber, dépistage, and gravity concentration stages into a coordinated processing train.

Flux de travail opérationnel

1. Préparation des aliments: A heavyduty reciprocating plate feeder with grizzly (100 mm ouverture) removes oversize and regulates feed rate via variable frequency drive (VFD), preventing surges and ensuring consistent material flow to the scrubber.
2. Attrition Scrubbing: A dualdrive rotary scrubber (2.8 m de diamètre × 6.5 m de longueur) with highpressure water injection (6–8 bar) décompose les agglomérats d'argile et libère les particules d'or de la gangue. Retention time is adjustable between 2–4 minutes.
3. Dépistage et classification: Un crible vibrant à deux étages (3.0 m × 7.3 m) with polyurethane media separates material at 10 mm et 3 ouvertures en mm. Oversize reports to reject stockpile; undersize feeds the concentration circuit.
4. Concentration gravitationnelle: A bank of 8–12 centrifugal concentrators (30unités en pouces) processes the classified slurry, recovering free gold and heavy minerals. Tailings from concentrators pass through a dewatering screen before reporting to the tailings stacker.
5. Water Recovery and Recycling: A thickener (20 m de diamètre) and filter press system recovers process water, achieving 85–90% water recycling rates, reducing fresh water consumption to 0.5–0.7 m³ per ton of feed.

Champ d'application

This plant is engineered for alluvial and elluvial gold deposits, weathered hardrock ores with clay content up to 40%, and artisanal mining tailings reclamation projects. It is not suitable for primary hardrock (filon) gold ores requiring crushing and grinding circuits, nor for ores with significant sulfide mineralization requiring chemical leaching.

Fonctionnalités principales

HighCapacity Rotary Scrubber with Adjustable Retention Time

Base technique: Dual counterrotating drives with variable speed control (0–12 tr/min) and internal lifter bars create cascading motion that maximizes particleonparticle attrition. Water injection points are positioned at 0°, 120°, and 240° around the drum circumference.
Avantage opérationnel: Your operators can adjust retention time in realtime based on feed clay content, maintaining scrub efficiency above 90% even with feed moisture up to 20%.
Impact sur le retour sur investissement: Reduces downstream screen blinding by 60–70%, cutting unplanned downtime by 8–12 hours per month.

Modular Screen Deck with QuickChange Media

Base technique: Polyurethane screen panels with modular fixing systems allow panel replacement without removing the screen deck. Aperture sizes are interchangeable from 2 mm à 25 mm.
Avantage opérationnel: Your maintenance crew can change a complete deck in 4 heures contre 16 hours for traditional wedgewire systems, reducing changeover downtime by 75%.
Impact sur le retour sur investissement: Annual maintenance labor savings of $45,000–$60,000 per plant, plus increased availability of 3–5%.

ClosedLoop Water Recovery System

Base technique: Épaississant lamelle (20 m de diamètre) with polymer flocculant dosing achieves underflow density of 55–60% solids. Filter press produces filter cake at 20% moisture for dry stacking.
Avantage opérationnel: Your site water consumption drops to 0.5–0.7 m³ per ton of feed, meeting stringent environmental permit requirements in most export jurisdictions.
Impact sur le retour sur investissement: Water cost savings of $180,000–$250,000 annually at typical industrial water rates, plus reduced tailings dam footprint.

PLCControlled Process Automation

Base technique: AllenBradley or Siemens PLC with HMI touchscreen interface monitors feed rate, scrubber power draw, screen vibration parameters, and concentrator pressures. Automated alarms trigger at preset thresholds.
Avantage opérationnel: Your plant supervisors can operate the entire washing circuit from a single control room, reducing operator headcount by 30–40%.
Impact sur le retour sur investissement: Labor cost savings of $120,000–$180,000 per year, plus improved process consistency leading to 2–3% higher recovery rates.

HeavyDuty Wear Protection Package

Base technique: All slurry contact surfaces are lined with 12 mm ceramic tiles (92% alumine) ou 20 mm chromoly wear plates. Pump impellers and casings use highchrome alloys (27% Cr).
Avantage opérationnel: Your component replacement intervals extend from 6 months to 18–24 months for critical wear parts, reducing parts inventory requirements.
Impact sur le retour sur investissement: Annual wear parts cost reduction of 35–45%, representing $150,000–$220,000 in savings.

Integrated Sampling and Assay Station

Base technique: Automatic crossbelt samplers at feed, se concentrer, and tailings points collect 1–2 kg samples at preset intervals. Sample preparation equipment includes riffle splitter and pulverizer.
Avantage opérationnel: Your metallurgical team obtains realtime grade control data without manual sampling, permettant des ajustements immédiats des processus.
Impact sur le retour sur investissement: Recovery optimization based on continuous data typically improves overall gold recovery by 1.5–3%, worth $200,000–$500,000 annually at current gold prices.

ExportReady Documentation Package

Base technique: Complete engineering documentation including P&ID diagrams, general arrangement drawings, schémas électriques, et fonctionnement & maintenance manuals in English and optional French/Spanish. CE certification and ISO 9001:2015 quality system documentation included.
Avantage opérationnel: Your logistics team can clear customs without delays, and your commissioning engineers have complete reference documentation for rapid site setup.
Impact sur le retour sur investissement: Avoids 2–4 weeks of customs delays valued at $100,000–$200,000 in demurrage and idle equipment costs.

Avantages compétitifs

| Mesure de performances | Norme de l'industrie | 500 Solution pour usine de lavage TPH | Avantage |
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| Feed throughput (tph) | 350–400 | 500 (soutenu) | 25–43% higher |
| Clay dispersion efficiency | 75–80% | 92–95% | 15–19% improvement |
| Consommation d'eau (m³/tonne) | 3.0–5.0 | 0.5–0,7 (with recycling) | 77–86% reduction |
| Récupération d'or fin (−0.5 mm) | 70–80% | 88–93% | 10–16% improvement |
| Screen media change time (heures) | 16–24 | 4–6 | 75% plus rapide |
| Wear parts service life (mois) | 6–9 | 18–24 | 100–167 % plus longtemps |
| Process automation level | Manuel/semi-automatique | Full PLC with remote monitoring | Reduced operator intervention |
| Water recovery rate | 60–70% | 85–90% | 15–20% improvement |

Spécifications techniques



| Paramètre | Spécification |
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| Capacité d'alimentation | 500 tph (densité apparente 1.6 t/m³) |
| Taille supérieure de l'alimentation | 600 mm (after grizzly) |
| Dimensions de l'épurateur | 2.8 m dia × 6.5 m de longueur |
| Puissance d'entraînement de l'épurateur | 2 × 132 kW (double entraînement) |
| Dimensions de l'écran | 3.0 m × 7.3 m double deck |
| Screen Drive Power | 2 × 30 kW (vibrator motors) |
| Configuration du concentrateur | 8–12 units, 30inch centrifugal |
| Concentrator Drive Power | 11 kW chacun |
| Thickener Diameter | 20 m |
| Filter Press Capacity | 45 m² filtration area |
| Puissance installée (Total) | 850–1,100 kW (selon configuration) |
| Alimentation | 380V/50Hz ou 480V/60Hz, 3phase |
| Fresh Water Requirement | 250–350 m³/hour (with recycling) |
| Total Water Requirement | 2,000–2,500 m³/hour (circulé) |
| Plage de température de fonctionnement | −10°C à +45°C (with coldweather package option) |
| Transport Configuration | 6 × 40ft container modules or 4 × flatrack modules |
| Total Equipment Weight | 180–220 metric tons (excluding structural steel) |
| Niveau de bruit | ≤ 85 dB(UN) à 1 mètre (avec enceintes acoustiques en option) |
| Émission de poussière | ≤ 50 mg/Nm³ (with water spray suppression) |

Scénarios d'application

Exploitation d'or alluvial en Afrique de l'Ouest (Guinée)

Défi: A midtier mining contractor processing 400 tph of lateritic ore with 25–35% clay content experienced 30% downtime due to screen blinding and scrubber packing. Récupération de l'or fin (−0.3 mm) was below 65%, and water consumption exceeded 4 m³/tonne, violating the new environmental code.
Solution: Mise en place du 500 TPH washing plant with dualdrive scrubber, support d'écran en polyuréthane, and closedloop water recovery. The plant was configured with 10 centrifugal concentrators and a 20 m thickener.
Résultats: Sustained throughput of 480–520 tph achieved within 3 semaines de mise en service. Screen blinding reduced by 85%, downtime dropped from 30% à 7%. Fine gold recovery improved to 90%, increasing monthly gold production by 18%. Consommation d'eau réduite à 0.6 m³/tonne, achieving full regulatory compliance.

Artisanal Mining Tailings Reclamation (Pérou)

Défi: A cooperative managing 2.5 million tons of historical tailings (classement 0.4 g/t d'or) needed a highcapacity washing plant capable of processing clayrich, highmoisture material while meeting strict environmental standards for downstream water quality.
Solution: Deployment of the 500 TPH plant with enhanced scrubbing configuration (extended retention time) and complete water treatment package including thickener and filter press for dry tailings stacking.
Résultats: Processing rate of 480 tph achieved on tailings material with 18% humidité. Gold recovery of 82% from tailings (contre 70% from previous smallerscale operations). The dry stacking system eliminated the need for new tailings dams, reducing environmental liability and permitting time by 14 mois.

Greenfield Alluvial Project (Mongolia)

Défi: A junior mining company required a complete, containerized washing plant for a remote site with −30°C winter temperatures and limited water availability. The plant needed to be operational within 90 days of arrival at site.
Solution: Supply of the 500 TPH plant in 6 container modules with coldweather package (insulated scrubber, heated water lines, lubrifiants basse température). The closedloop water system was configured for 90% recycling to minimize freshwater demand.
Résultats: Plant erected and commissioned in 21 jours. Winter operation sustained at −25°C with only 15% capacity reduction during extreme cold snaps. Water consumption of 0.5 m³/ton achieved, allowing operation with a single 100 m deep production well.

Considérations commerciales

Niveaux de tarification des équipements

| Niveau de configuration | Composants inclus | Fourchette de prix indicative (GOUSSET) |
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| Standard | Scrubber, écran, 8 concentrateurs, convoyeurs interconnectés, système de contrôle | $2.8M – $3.5M |
| Amélioré | Standard + épaississant, filter press, water recycling package | $3.6M – $4.4M |
| Prime | Amélioré + automatisation complète, surveillance à distance, sampling station, forfait temps froid | $4.5M – $5.5M |

Note: Prices are indicative and vary based on specific site requirements, local content requirements, and export logistics.

Fonctionnalités facultatives

• Additional concentrators: $85,000–$120,000 per unit (installé)
• Jig concentrators for coarse gold recovery: $150,000–$250,000 per unit
• Mercuryfree gold recovery tables: $45,000–$65,000 per unit
• Mobile/relocatable chassis: $300,000–450 000 $
• Ensemble générateur diesel (1.2 AMIU): $250,000–350 000$
• Garantie prolongée (3 années, couverture complète): 8–10% of equipment value

Forfaits de services

| Emballer | Portée | Coût annuel |
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| Basique | Assistance technique à distance, spare parts availability guarantee | $45,000 |
| Standard | Basique + 2 visites sur site/an, formation des opérateurs (2 semaines), performance audit | $95,000 |
| Complet | Standard + resident engineer (6 mois), full maintenance program, garantie de performance | $180,000 |

Options de financement

• Lettre de crédit (L/C) at sight or usance (30–180 days) for established buyers
• Export Credit Agency (CEA) financing for qualifying projects in eligible countries
• Location d'équipement via les institutions financières partenaires (3–mandats de 5 ans)
• Performancebased payment terms: 30% dépôt, 40% contre les documents d'expédition, 20% against commissioning, 10% after 90day performance test

FAQ

T1: What is the minimum clay content the scrubber can handle without losing efficiency?
The scrubber maintains 90%+ dispersion efficiency with clay content up to 40% en poids. Au dessus de ce niveau, we recommend extending retention time (adjustable up to 4 minutes) or adding a second scrubber stage. Field data from operations in West Africa and Southeast Asia confirms consistent performance at 35–40% clay.

T2: Can the plant be modified for different feed materials after initial commissioning?
Oui. The modular design allows interchangeability of screen media (2–25 mm apertures), adjustment of scrubber water pressure and retention time, and reconfiguration of concentrator banks. Typical changeover time for a different ore type is 3–5 days with our technical support team.

T3: What is the expected delivery lead time from order to FOB port?
Standard lead time is 16–20 weeks from receipt of deposit and approved drawings. Cela inclut la fabrication, quality inspection, and documentation preparation. Livraison accélérée (12–14 semaines) is available at a 5–7% premium, subject to production schedule availability.

T4: What training do you provide for local operators and maintenance crews?
Notre forfait standard comprend 2 weeks of onsite training for up to 8 opérateurs et 4 techniciens d'entretien. Training covers plant operation, process optimization, entretien préventif, et les procédures de sécurité. Nous fournissons également des manuels complets d'exploitation et de maintenance en anglais., Français, Espagnol, or Russian.

Q5: How does the plant handle feed material with high moisture content (au-dessus de 15%)?
The scrubber is designed with highpressure water injection (6–8 bar) and extended retention time capability to handle sticky, highmoisture feeds. The screen deck uses selfcleaning polyurethane media with ball trays to prevent blinding. In extreme cases (humidité au-dessus 20%), we recommend a prescreening step to remove excess fines before the scrubber.

Q6: What are the power requirements, and can the plant run on generator power?
Total installed power is 850–1,100 kW depending on configuration. The plant can operate on diesel generator power, and we offer an integrated generator package (1.2 AMIU) with automatic load sharing. Specific power consumption is 1.7–2.2 kWh per ton of feed, which is competitive for this capacity class.

Q7: What export certifications and documentation are included with the equipment?
Each plant ships with CE certification (Machinery Directive 2006/42/EC), OIN 9001:2015 quality system certification, et ISO 14001:2015 environmental management certification. Documentation includes P&ID diagrams, general arrangement drawings, schémas électriques, calculs de structure, and a complete spare parts list with part numbers and drawings. We also provide a Certificate of Origin and packing list for customs clearance.

Q8: What is the typical payback period for this equipment at current gold prices?
Based on client data from operations processing 0.3–0.8 g/t material, payback periods range from 14–24 months. This calculation assumes gold price of $2,300/oz, 90% taux de récupération, and operating costs of $8–12 per ton processed. Highergrade deposits (au-dessus de 1 g/t) typically achieve payback in 8–12 months.

Q9: Can the plant be relocated to a different site after initial installation?
Oui. The modular containerized design allows disassembly, transport, and reerection at a new site. Typical relocation time is 4–6 weeks including recommissioning. We provide detailed relocation procedures and can supply additional structural steel or foundations if required for the new site.

Q10: What aftersales support is available for troubleshooting and optimization?
Our support team provides 24/7 remote assistance via phone, email, and video conferencing. Pour les problèmes critiques, we can dispatch a service engineer within 72 hours to most international locations. We also offer annual performance audits that include process optimization recommendations based on operational data analysis.