1. OUVERTURE ENTRAÎNÉE PAR POINT DE DOULEUR

Are you scaling your gold recovery operations only to be constrained by washing and scrubbing capacity? Flux incohérent, teneur élevée en argile, and inefficient fines recovery directly impact your bottom line. Considérez ces défis communs:
Débit goulot d'étranglement: Your existing scrubber or trommel can't keep up with excavator or dredge output, capping plant capacity at 300 TPH and leaving valuable material stockpiled.
Temps d'arrêt excessif & Entretien: Défaillances fréquentes des roulements, écran aveuglant, and unexpected breakdowns in harsh, abrasive environments lead to costly operational stoppages and high parts replacement costs.
Poor Clay & Fines Liberation: Inadequate scrubbing action leaves gold locked in claybound aggregates, resulting in significant recoverable gold reporting to tailings.
Hautes eaux & Consommation d'énergie: Older designs are inefficient, consuming excessive water per ton processed and driving up operational expenses in remote sites.

How do you increase plant throughput to 500 TPH reliably while ensuring maximum clay breakdown and gold liberation? What solution minimizes unplanned maintenance and optimizes resource consumption for a superior return on investment?

2. APERÇU DU PRODUIT

The FDA Approved 500 L'usine de lavage de TPH Gold Mining est une installation robuste, modular scrubbing and classification system engineered for highvolume alluvial and eluvial deposits. It is designed to meet stringent requirements for materials handling in sensitive environments where regulatory compliance is critical.

Flux de travail opérationnel:
1. Alimentation & Présélection: Runofmine material is fed via conveyor into a robust hopper with a grizzly section to remove oversize rocks (>75mm).
2. Gommage intensif: Material enters the central rotating drum scrubber, where lifters cascade ore for maximum attrition, breaking down clays and dissolving agglomerates.
3. HighPressure Spray Washing: Internally mounted spray bars deliver highimpact water jets to disintegrate stubborn material coatings.
4. Dépistage efficace & Classification: Scrubbed material passes over modular screen panels (typically 10mm), with undersize reporting to downstream recovery (écluses, centrifugeuses) and oversize conveyed to waste.

Champ d'application: Ideal for largescale alluvial gold operations, placer mining projects, and heavy mineral sands beneficiation requiring highvolume feed processing.

Limites: Not suitable for hard rock primary crushing or processing of highly cemented gravels without prior size reduction. Performance is dependent on consistent feed characteristics and adequate water supply.

3. CARACTÉRISTIQUES PRINCIPALES

HeavyDuty Drum Scrubber | Base technique: Highlengthtodiameter ratio with internal helical lifters | Avantage opérationnel: Provides extended retention time (23 minutes) and optimal cascading action for complete clay dissolution | Impact sur le retour sur investissement: Increases overall gold recovery by liberating locked fines; reduces reprocessing costs.

Modular Screen Section | Base technique: Les boules, interchangeable polyurethane or steel screen panels | Avantage opérationnel: Permet un changement rapide du panneau (<2 heures) for different feed conditions or screen sizes; minimise les temps d'arrêt | Impact sur le retour sur investissement: Reduces maintenance windows by up to 60% compared to weldedscreen units.

Surfaces de contact avec les matériaux conformes à la FDA | Base technique: Critical wetted parts constructed from FDAlisted grades of stainless steel or certified polymers | Avantage opérationnel: Ensures compliance for operations in environmentally sensitive areas or where water discharge regulations are strict | Impact sur le retour sur investissement: Mitigates regulatory risk and potential project shutdowns; facilitates permitting.

Graissage centralisé & Système de surveillance | Base technique: Automated lube points on all major bearings with condition monitoring ports | Avantage opérationnel: Ensures proper bearing lubrication in dusty conditions; permet une planification de maintenance prédictive | Impact sur le retour sur investissement: Extends component life by over 40%, preventing catastrophic bearing failures and associated downtime.

Entraînement à fréquence variable (VFD) Contrôle | Base technique: PLCcontrolled drive on scrubber motor | Avantage opérationnel: Allows operators to finetune rotational speed (RPM) based on feed viscosity and clay content for optimal processing | Impact sur le retour sur investissement: Optimizes power consumption and reduces shear on mechanical components under variable loads.

Collecteur de recyclage d'eau intégré | Base technique: Lowvolume, highpressure spray bars fed from a closedloop settling pond system | Avantage opérationnel: Maximizes washing efficiency while minimizing fresh water intake—typically below 100 gallons per ton processed | Impact sur le retour sur investissement: Réduit considérablement les coûts d’approvisionnement en eau et de pompage, crucial pour les sites distants.

4. AVANTAGES CONCURRENTIELS

| Mesure de performances | Norme de l'industrie (400 Usine TPH) | Notre 500 Solution d'usine de lavage d'exploitation minière d'or TPH | Avantage (% Amélioration) |
| : | : | : | : |
| Nominal Throughput Capacity (Clayrich Feed) | 400 TPH (rated), ~320 TPH (actual with clays) | 500 TPH (rated), ~460 TPH (actual with clays) | +25% Noté / +44% Effective |
| Average Power Consumption per Ton Processed| 0.85 kW/tonne| 0.72 kW/tonne| 15% Consommation d'énergie |
| Temps moyen entre les pannes (Roulements critiques)| ~1 200 heures| >2,000 heures| +67% Fiabilité |
| Efficacité de désintégration de l'argile (>90% passing 2mm)| ~75% yield| >92% rendement| +23% Libération |
| Total Water Consumption per Ton Processed| ~150 gallons/tonne| <100 gallons/tonne| 33% Utilisation de l'eau |

5. SPÉCIFICATIONS TECHNIQUES

Désignation du modèle: GW500FDA
Capacité nominale: 500 Tonnes par heure (aliments secs)
Dimensions du tambour d'épurateur: 3.5m Diameter x 9m Length
Puissance motrice: Main Scrubber Motor – 250 kW (335 HP), VFD Controlled
Taille d'alimentation maximale: Jusqu'à 250 mm (after grizzly removal)
Configuration de la plate-forme d'écran: Pont unique, panneaux modulaires; standard aperture size configurable from 6mm to 20mm.
Matériaux de construction: Drum Shell – Abrasionresistant steel; Liner/Wear Parts – AR400 Steel; Material Contact Surfaces – FDAlisted SS304 or equivalent polymers.
Water Supply Requirement: System pressure >60 PSI at flow rate of up to 1,200 GPM.
Empreinte végétale (Lxl): Approximately 22m x 8m (hors convoyeurs d'alimentation/déchargement).
Plage de température de fonctionnement: 20°C à +50°C (4°F to 122°F).
Conformité réglementaire: Designed to meet FDA Title 21 CFR for material contact surfaces; general structural design complies with ISO 8525 standards for mining machinery.

6. SCÉNARIOS D'APPLICATION

LargeScale Alluvial Gold Operation, Afrique de l'Ouest

Défi: A major operator needed to upgrade their existing 350 TPH washing circuit that was bottlenecking their dredging output. High clay content caused severe screen blinding and reduced effective capacity by 30%.
Solution: Implementation of the GW500FDA as the primary scrubbing module ahead of existing gravity circuits.
Résultats: A atteint un débit soutenu de 480 TPH of difficult claybound gravels. Clay liberation efficiency improved from 70% à 94%, leading directly to a measured 8% increase in overall gold recovery within the plant flow sheet within the first quarter.

Placer Mine Expansion Project, Yukon Territory

Défi: A new project required an environmentally compliant solution capable of processing 500 TPH of frozen pay gravel within a strict permitting framework that governed materials contact surfaces.
Solution: Installation of the GW500FDA configured with steam injection manifolds at the feed hopper and FDAcompliant internal components.
Résultats: The plant met all regulatory requirements for permitting approval. The robust scrubbing action efficiently processed challenging frozen aggregates while the lowwater design reduced thermal input needs, keeping operational costs within budget projections.

7. CONSIDÉRATIONS COMMERCIALES

The GW500FDA Gold Mining Washing Plant is offered in three primary configurations:

1. Niveau d'unité de base ($850k 1 M$):
Includes core scrubber module with VFD drive,
Standard steel screen panels,
Basic walkways,
Motor control center,
Oneyear parts warranty

2. Optimized Package Tier ($1M. $1 .25M.):
FDAcompliant contact surfaces,
Polyurethane modular screen panels,
Integrated centralized greasing system,
Extended walkways & safety guarding,
18month warranty

3 . Turnkey Plant Integration Tier ($1 .5M+):
Customengineered feed & discharge conveyors matched t o your site layout ,
Complete water recycling & settling pond design package ,
Supervision de la mise en service sur site ,
Twoyear comprehensive warranty including labor

Fonctionnalités facultatives:
• Steam / Hot Water Injection Kits f o r coldclimate operation .
• Onboard diesel generator power pack .
• Advanced trommel screen section f o r more precise sizing .
• Remote monitoring & diagnostics telemetry .

Forfaits de services:
Contrats d'inspection annuels , guaranteed spare parts kits , an d operator training programs are available separately .

Options de financement:
Structures de location de matériel , projectbased financing through partner institutions , an d tradein programs f o r qualifying existing equipment can b e arranged .

8 . FAQ

Q : Is this washing plant compatible wit h our existing sluice boxes an d concentrators ?
UN : Oui . The unit i s designed as a dropin scrubbing an d classification module . I t produces clean , sized gravel an d slurry output that can b e directed t o most downstream gravity recovery systems . Our engineering team can review your specific layout t o ensure compatibility .

Q : What i s the typical installation an d commissioning timeline ?
UN : For th e Optimized Package Tier delivered t o prepared site foundations , mechanical installation typically requires 1014 jours . Electrical tiein an d wet commissioning require an additional 57 jours , assuming utilities are available .

Q : How does th e "Approuvé par la FDA" designation impact our operation ?
UN : This designation specifically refers t o th e materials used i n surfaces contacting process media . I t demonstrates compliance wit h stringent health an d environmental standards , which i s often critical f o r obtaining operating permits i n jurisdictions wit h strict environmental controls .

Q : What are th e ongoing operational costs we should budget f o r ?
UN : Primary costs include power (~0 .72 kW/tonne), wear liners /screen panels (dependent o n abrasiveness ; typically replaced annually ), an d routine bearing lubrication . Field data indicates total operating cost excluding labor ranges between $0 .85$1 .25 par tonne traitée .

Q : Can th e plant handle variations i n feed material , such as sudden increases i n clay content ?
UN : Oui . Th e Variable Frequency Drive allows operators t o adjust drum speed t o increase attrition during highclay periods . Th e modular screen design also allows f o r quick changes t o larger apertures if temporary relief from blinding i s needed .

Q : What kind of operator training i s provided ?
UN : Comprehensive training covering normal operation , shutdown procedures , contrôles d'entretien de routine , an d basic troubleshooting i s provided during commissioning . Training manuals an d video guides are supplied .

Q : Les pièces de rechange sont-elles facilement disponibles ?
UN : We maintain a global network of certified parts depots stocking critical wear items like lifters , panneaux d'écran ,an d bearing assemblies . Guaranteed dispatch of critical spares within 24 hours i s available under our premium service contracts