Chine 500 Usine de lavage d'extraction d'or TPH: HighCapacity Alluvial Gold Recovery Solution

Operational Challenges in LargeScale Gold Recovery

Your operation faces three persistent bottlenecks: declining recovery rates below 85% due to claybound feed material, unplanned downtime exceeding 120 hours annually from screen blinding and pump failures, and escalating water consumption above 4,000 m³ per day for 500 Débit TPH. Each percentage point lost in recovery represents approximately $15,000–$25,000 in unrecovered gold value per month at current market prices. Equipment wear from abrasive quartz and lateritic clays forces complete liner replacements every 800–1,200 operating hours, adding $180,000–$250,000 in annual maintenance costs.

Can your current washing plant handle feed moisture content exceeding 18% sans sacrifier le débit? Are you losing fine gold particles below 75 microns to overflow discharge? Does your existing setup require twostage crushing before washing, adding $0.40–$0.60 per ton in preprocessing costs?

Présentation du produit: Integrated Washing and Recovery System

The China 500 L'usine de lavage de l'or TPH est une installation modulaire, skidmounted system combining rotary trommel scrubbing, highpressure spray washing, and multistage gravity concentration. Designed for alluvial, éluvial, and weathered hardrock deposits, this plant processes runofmine feed with clay content up to 40% and particle sizes up to 600 mm.

Flux de travail opérationnel:

1. Préparation des aliments: Runofmine material enters a vibrating grizzly feeder (bar spacing 50–80 mm) avoir un scalp surdimensionné >150 mm, which discharges to a reject conveyor.
2. Trommel Scrubbing: Feed enters a 2.4 m de diamètre × 8.0 m long rotary trommel with internal lifters and highpressure spray bars (12–16 bar, 8 nozzles per linear meter). Retention time adjustable 45–90 seconds via variable frequency drive (VFD).
3. Screening and Classification: Trommel screen sections (two decks: 10 mm et 2 ouvertures en mm) separate +10 mm oversize (reject), 2–10 mm middlings (secondary crushing optional), et 2 mm de boue.
4. Concentration gravitationnelle: 2 mm slurry feeds a bank of 8–12 centrifugal concentrators (30 TPH chacun) with automatic discharge cycles. Concentrate undergoes final upgrading via shaking tables or mercuryfree intensive cyanidation.
5. Gestion de l'eau: Closedloop system with thickener (20 m de diamètre) and filter press recovers 85–90% of process water. Makeup water requirement: 400–600 m³/day.

Champ d'application: Alluvial gold deposits, riverbed mining, old tailings reprocessing, weathered gold ores. Limites: Not suitable for primary hardrock ores requiring crushing below 10 mm; maximum feed clay content 45% sans préconditionnement.

Fonctionnalités principales

HighIntensity Trommel Scrubbing | Base technique: Counterrotational lifters with 12–16 bar spray pressure | Avantage opérationnel: Disaggregates claybound gold particles within 60 seconds retention time | Impact sur le retour sur investissement: Reduces downstream grinding energy by 30–40% and increases liberation of fine gold (75–150 micron) by 18–22%

DualDeck Modular Screen System | Base technique: Polyurethane screen panels with 10 mm et 2 ouvertures en mm, 18° slope, 1,200 RPM vibration | Avantage opérationnel: Eliminates screen blinding in highclay feeds through selfcleaning ball decks | Impact sur le retour sur investissement: Reduces screen replacement frequency from every 400 heures pour 1,200 heures; saves $12,000–$18,000 annually per screen deck

Entraînement à fréquence variable (VFD) Contrôle | Base technique: 160 kW motor with VFD for trommel rotation (4–12 RPM) and feed conveyor speed | Avantage opérationnel: Adjusts retention time and wash intensity based on realtime feed clay content | Impact sur le retour sur investissement: Optimizes water usage by 15–20% and reduces power consumption by 12% compared to fixedspeed operation

Automatic Concentrator Discharge System | Base technique: Pneumatic pinch valves with PLCcontrolled discharge cycles (every 15–45 minutes) | Avantage opérationnel: Eliminates manual concentrate removal, reducing labor requirements by 2 opérateurs par équipe | Impact sur le retour sur investissement: Increases concentrator availability from 85% à 96%, recovering an additional 0.8–1.2 grams per ton of feed

ClosedLoop Water Recovery | Base technique: 20 m highrate thickener with polymer flocculant dosing (5–15 g/m³) et 1,200 mm filter press | Avantage opérationnel: Recovers 85–90% of process water, reducing fresh water intake from 4,000 m³/day to 400–600 m³/day | Impact sur le retour sur investissement: Lowers water procurement costs by $80,000–$120,000 annually in waterscarce regions

WearResistant Component Package | Base technique: Hardox 450 steel liners (400 HB) in trommel feed section, panneaux d'écran en polyuréthane, ceramiclined slurry pipes | Avantage opérationnel: Extends component life by 2.5–3 times compared to standard mild steel | Impact sur le retour sur investissement: Reduces annual maintenance costs by $45,000–$65,000 and unplanned downtime by 60 heures par an

Surveillance et diagnostic à distance | Base technique: Capteurs IoT activés 12 critical points (vibration, température, couler, pression) with cloudbased dashboard | Avantage opérationnel: Provides realtime alerts for bearing wear, écran aveuglant, and pump cavitation | Impact sur le retour sur investissement: Réduit le temps moyen de réparation (MTTR) depuis 8 heures pour 2.5 heures; prevents catastrophic failures costing $30,000–$50,000 per incident

Avantages compétitifs

| Mesure de performances | Norme de l'industrie (500 Usines TPH) | Notre 500 Usine de lavage d'or TPH | Avantage (% Amélioration) |
|||||
| Gold recovery rate (grossier >150 micron) | 92–95% | 96–98% | 3–4% higher recovery |
| Gold recovery rate (fine 75–150 micron) | 75–82% | 85–90% | 8–10% higher recovery |
| Water consumption per ton processed | 6–8 m³/ton | 3.5–4.5 m³/ton | 35–45% reduction |
| Screen blinding frequency (par 1,000 heures) | 8–12 events | 2–4 events | 65–75% reduction |
| Trommel liner replacement interval | 800–1 200 heures | 2,500–3 200 heures | 150–200% longer life |
| Power consumption per ton processed | 1.8–2.4 kWh/ton | 1.3–1.6 kWh/ton | 25–33% reduction |
| Temps de mise en service (dès la livraison) | 14–21 jours | 7–10 days | 50–55% faster |
| Operator requirement per shift | 4–5 operators | 2–3 operators | 35–40% reduction |

Spécifications techniques

| Paramètre | Spécification |
|||
| Capacité | 500 TPH (nominal), 550 TPH (culminer, <25% argile) |
| Taille de l'alimentation | 0–600mm (maximum 800 mm intermittent) |
| Clay Content Tolerance | Jusqu'à 45% (with VFD adjustment) |
| Dimensions du tambour | 2.4 m de diamètre × 8.0 m de longueur |
| Trommel Motor | 160 kW, 4pôle, 415 V/50 Hz (ou 480 V/60 Hz) |
| Zone d'écran | 18 m² (two decks) |
| Spray Water Pressure | 12–16 bar (réglable) |
| Puissance totale installée | 380 kW (y compris les convoyeurs, pompes, concentrateurs) |
| Water Flow Rate | 1,800–2,400 m³/hour (circulating) |
| Concentrateurs | 8–12 units, 30 TPH chacun, 3 mm max feed size |
| Thickener Diameter | 20 m (centerdrive, acier doux) |
| Filter Press | 1,200 mm × 1,200 mm, 100 assiettes, 80 m³ capacity |
| Dimensions hors tout (L×L×H) | 45 m × 18 m × 12 m (fonctionnement) |
| Dimensions de transport | 4 × 40 ft containers + 2 flat racks |
| Poids total | 185 tonnes métriques (fonctionnement) |
| Température de fonctionnement | 10°C à 50°C (with heating options for subzero) |
| Niveau de bruit | <85 dB(UN) à 1 m (avec enceintes acoustiques) |

Scénarios d'application

Alluvial Gold Mining – West Africa | Défi: Feed material contained 35–40% lateritic clay, causing severe screen blinding and reducing effective throughput to 320 TPH. Gold recovery dropped below 70% for particles <100 microns. | Solution: Installed 500 TPH plant with VFDcontrolled trommel (increased retention time to 75 secondes) and dualdeck polyurethane screens with ball decks. Added 10 centrifugal concentrators with 20minute discharge cycles. | Résultats: Throughput stabilized at 480–510 TPH. Gold recovery for 75–150 micron fraction increased from 68% à 87%. Water consumption reduced from 7.2 m³/ton to 4.1 m³/tonne. La production annuelle d’or a augmenté de 22%, equivalent to $1.8 million additional revenue at $1,800/oz.

Riverbed Gold Reprocessing – Southeast Asia | Défi: Reprocessing 15yearold tailings with 8–12% clay and high silt content (40% passage 75 microns). Existing plant achieved only 55% recovery due to fines loss in overflow. | Solution: Deployed 500 TPH plant with enhanced fine gold recovery circuit: 12 centrifugal concentrators in parallel, followed by twostage shaking table concentration. Installed thickener with 15 g/m³ flocculant dosing. | Résultats: Recovery rate for tailings feed reached 82% (contre. 55% previously). Concentrate grade improved from 45 g/ton to 280 g/tonne. Période de récupération: 11 months based on incremental gold recovery of 1.8 g/tonne.

Weathered HardRock Gold – Central Asia | Défi: Feed material from weathered quartz veins with 20–25% clay and 15% humidité. Existing plant required twostage crushing (mâchoire + cône) before washing, adding $0.55/ton in costs. | Solution: Implemented 500 TPH plant with 50 mm grizzly scalping and direct trommel feed. Added secondary scrubber for +10 fraction en mm. | Résultats: Eliminated primary crushing stage, reducing preprocessing costs by $0.48/ton. Throughput maintained at 470–500 TPH. Gold recovery: 94% pour +150 micron, 83% for 75–150 micron. Annual cost savings: $720,000.

Considérations commerciales

Niveaux de tarification des équipements (FOB Shanghai, départ usine):

| Configuration | Gamme de prix (USD) | Délai de mise en œuvre | Comprend |
|||||
| Standard (8 concentrateurs, décharge manuelle) | $680,000–750 000$ | 8–10 semaines | tambour, écrans, 8 concentrateurs, pompes, Panneau de contrôle |
| Amélioré (10 concentrateurs, auto discharge) | $820,000–$910,000 | 10–12 semaines | Au-dessus de + 2 additional concentrators, PLC autodischarge, surveillance à distance |
| Prime (12 concentrateurs, automatisation complète) | $980,000–$1,080,000 | 12–14 semaines | Au-dessus de + épaississant, filter press, Capteurs IoT, Intégration SCADA |

Fonctionnalités facultatives:

• Secondary scrubber for +10 fraction en mm: $85,000–$110,000
• Shaking table package (4 unités): $120,000–$145,000
• Heating system for subzero operation: $45,000–60 000 $
• Mobile chassis (roadtowable): $95,000–$130,000
• Kit de pièces de rechange (12month operation): $55,000–$75,000

Forfaits de services:

• Basique (1 année): Remote technical support, 2 onsite visits, mises à jour du logiciel: $18,000/année
• Standard (3 années): Au-dessus de + 4 onsite visits, expédition prioritaire des pièces, audit de performance annuel: $42,000/année
• Complet (5 années): Au-dessus de + garanti 92% disponibilité, 48hour parts replacement, formation des opérateurs (4 sessions): $68,000/année



Options de financement:

• 30% acompte, 70% à la livraison (standard)
• 20% vers le bas, 40% à l'expédition, 40% après la mise en service (available for established buyers)
• Ville de bail: 36durée du mois, 8.5% AVR (sous réserve d'approbation de crédit)
• Equipmentbacked financing: 12–24 mois, 6–9% APR (for buyers with existing operations)

FAQ

Q: Can this plant handle feed with clay content exceeding 45%?
UN: The standard configuration is optimized for up to 45% argile. For higher clay content (jusqu'à 60%), we recommend adding a preconditioning drum or increasing trommel retention time via VFD adjustment. Field data shows recovery rates decline by 3–5% for each 5% increase in clay above 45%. A sitespecific test is recommended before ordering.

Q: What is the expected gold recovery rate for fine particles (50–75 microns)?
UN: For the 50–75 micron fraction, recovery typically ranges from 65–78% depending on gold morphology and clay content. Our centrifugal concentrators achieve 72–78% recovery for liberated gold in this size range. For particles below 50 microns, recovery drops to 40–55%; we recommend adding a flotation or intensive cyanidation circuit for optimal recovery.

Q: How long does installation and commissioning take?
UN: Préparation du terrain (fondations en béton, approvisionnement en eau) requires 10–14 days. Equipment assembly and wiring: 7–10 days with a 4person crew. Mise en service et formation des opérateurs: 3–5 jours. Total timeline from delivery to full production: 20–28 days. We provide one commissioning engineer onsite for 10 jours.

Q: What is the power requirement and can it run on generator power?
UN: Total installed power is 380 kW. À 80% facteur de charge, actual consumption is 300–310 kW. For generator operation, nous recommandons un 500 kVA diesel generator (minimum 450 kVA). The VFD system includes softstart capability, reducing peak demand by 35%. Fuel consumption at full load: approximately 85–95 liters/hour.

Q: Quelle garantie et quel service après-vente offrez-vous?
UN: Garantie standard: 24 mois ou 8,000 heures d'ouverture (selon la première éventualité) for manufacturing defects. Pièces d'usure (doublures, écrans, spray nozzles) sont exclus. Le support après-vente comprend 24/7 diagnostic à distance, a regional parts warehouse (stocking 200+ composants critiques), and guaranteed 48hour dispatch for emergency parts.

Q: Cette usine peut-elle être étendue à 750 TPH dans le futur?
UN: Oui. The modular design allows capacity expansion by adding a second trommel module in parallel or upgrading to a 2.8 m diameter trommel. Estimated cost for 750 TPH upgrade: $320,000–420 000 $. The existing thickener and filter press can handle up to 650 TPH; above that, additional water treatment capacity is required.

Q: What are the environmental compliance requirements?
UN: The closedloop water system meets most international standards (IFC, World Bank) for zero liquid discharge. Résidus (surdimensionné +10 mm) are drystacked; 2 mm tailings from concentrators are thickened to 55–65% solids for dry stacking or pond disposal. Noise levels meet OSHA requirements with standard enclosures. We provide environmental compliance documentation for permitting.