Onderwerp: Optimized Gold Recovery Equipment – Direct Quotation & Technical Specification for Commercial Operations

1. PYNPUNT GEDREWE OPENING

Commercial gold recovery operations face three persistent challenges: low fines capture rates (losing 1530% van <100 mesh gold to tailings), oormatige waterverbruik (tot 1,000 gallons per ton of ore processed), en hoë instandhoudingskoste from slurry pump wear and screen blinding. These factors directly reduce your plant’s effective yield by an estimated $12$18 per ton of ore processed.

Is your current circuit losing micronsized gold particles that your jigs or spirals cannot capture? Are you spending more on water rights and pumping than on actual recovery? Die Goudmyntoerustingverspreiderkwotasie process must address these specific bottlenecks.

2. PRODUK OORSIG

This quotation is for a HighGravity Centrifugal Concentrator (HGCC) stelsel, specifically the Falcon/Knelsonstyle continuous discharge model, designed for primary recovery and scavenger applications.

Operasionele werkvloei:
1. Voervoorbereiding: Mis (2540% vaste stowwe volgens gewig) is introduced via a feed distributor to ensure even material flow across the concentrate bowl.
2. GForce-skeiding: The bowl rotates at 60120 G's, stratifying material by specific gravity. Heavy gold particles migrate to the riffles, while lighter gangue is ejected.
3. Deurlopende ontslag: A hydraulic system opens the concentrate ports at programmed intervals (bv., elke 25 minute), discharging highgrade concentrate (tipies 5002,000 g/t Au) without stopping the machine.
4. Uitskotbestuur: The lowgrade tailings stream is directed to a dewatering screen or thickener for water recycling.

Toepassingsomvang: Ideaal vir alluviale, hardrock mill circuits, and tailings retreatment. Beperkings: Not effective for gold particles below 10 microns without chemical pretreatment; vereis konsekwente voerdigtheid vir optimale werkverrigting.

3. KERNKENMERKE

Enhanced Fluidization Water System | Tegniese basis: Countercurrent fluidization prevents bed compaction | Bedryfsvoordeel: Onderhou 95%+ recovery of free gold down to 25 mikrons | ROI impak: Reduces gold loss to tailings by 812%, adding $200k$500k annual revenue for a 100 tpd plant.

Veranderlike frekwensie-aandrywing (VFD) Beheer | Tegniese basis: Adjustable Gforce (30150 G) based on feed particle size distribution | Bedryfsvoordeel: Your operators can optimize recovery for different ore types (bv., vlokkies vs. nugget gold) without mechanical changes | ROI impak: Eliminates need for multiple machine configurations, saving $15k in spare parts inventory.

Tungsten Carbide Riffle Liner | Tegniese basis: Hardness rating of 92 HRA, 5x harder than standard steel | Bedryfsvoordeel: Verleng dienslewe na 8,000+ werksure voor vervanging | ROI impak: Verminder jaarlikse voeringvervangingskoste met 60% and downtime by 40 ure/jaar.

Automated Concentrate Flush System | Tegniese basis: PLCcontrolled hydraulic valves with pressure sensors | Bedryfsvoordeel: Eliminates manual concentrate removal, reducing operator exposure to slurry hazards | ROI impak: Improves labor efficiency by 2 ure per skof, saving $35k/year in labor costs.

DualDischarge Port Design | Tegniese basis: Two opposing ports for balanced bowl dynamics | Bedryfsvoordeel: Prevents vibration and mechanical stress during highG operation | ROI impak: Verleng dra lewe deur 30%, reducing annual maintenance spend by $8k.

Integrated Wear Monitoring | Tegniese basis: Ultrasonic thickness sensors on bowl and feed pipe | Bedryfsvoordeel: Provides realtime alerts when liner wear reaches 70% threshold | ROI impak: Prevents catastrophic bowl failure, avoiding $25k replacement cost and 3day downtime.

LowProfile Modular Skid | Tegniese basis: Prepiped and prewired on a structural steel frame | Bedryfsvoordeel: Reduces installation time to 2 dae vs. 7 days for traditional systems | ROI impak: Saves $12k in installation labor and crane rental.

4. MEDEDINGENDE VOORDELE

| Prestasie-metriek | Bedryfstandaard (Jig/Spiral) | Goudmyntoerustingverspreiderkwotasie (HGCC) | Voordeel (% Verbetering) |
| : | : | : | : |
| Goud herstel (<100 gaas) | 4565% | 8595% | +40% |
| Waterverbruik (gal/ton) | 8001,200 | 400600 | 50% |
| Konsentreer Graad (g/t Au) | 50200 | 5002,000 | +400% |
| Kragverbruik (kWh/ton) | 1.52.5 | 0.81.2 | 40% |
| Gemiddelde tyd tussen mislukkings (uur) | 1,500 | 4,000 | +167% |
| Operator Intervention (ure/skof) | 34 | 0.5 | 85% |

5. TEGNIESE SPESIFIKASIES

• Model: HGCC48 (48inch bowl diameter)
• Kapasiteitgradering: 80120 dry tons per hour (afhangende van voer % vaste stowwe)
• Kragvereistes: 75 kW (100 HP) @ 480V/3phase/60Hz; VFD ingesluit
• Materiaalspesifikasies: Bowl: 304 Vlekvrye staal; Gewere: Tungsten Carbide (Grade K10); Feed Pipe: AR400 Staal
• Fisiese afmetings: Lengte: 14 ft (4.3m) | Breedte: 8 ft (2.4m) | Hoogte: 10 ft (3.0m) | Gewig: 18,500 lbs (8,400 kg)
• Omgewingsbedryfsreeks: Ambient Temp: 20°C tot 50 °C; Slurry Temp: 5°C tot 60 °C; Hoogte: Up to 4,500m (derate krag deur 1% per 100m bo 1 000m)
• Hidrouliese stelsel: 10 GPM @ 2,000 PSI; ISOS VG 46 hidrouliese olie; watercooled heat exchanger

6. TOEPASSINGSSCENARIO'S

Alluvial Mining Operation – Ghana | Uitdaging: Hoë klei-inhoud (25%) caused screen blinding and reduced jig recovery to 38%. | Oplossing: Installed HGCC48 with a highpressure wash ring to break clay agglomerates before centrifugation. | Resultate: Gold recovery increased to 91%; clayrelated downtime reduced from 6 ure/week tot 0.5 hours/week; annual gold production increased by 1,200 onse.



HardRock Mill Retrofitting – Nevada, VSA | Uitdaging: Existing ball mill cyclone overflow was losing 15% of gold in the 200 mesh fraction to tailings. | Oplossing: Placed HGCC48 as a scavenger unit on the cyclone underflow stream. | Resultate: Captured 92% of the lost fines; overall plant recovery improved from 88% aan 94%; terugbetalingstydperk van 4 months based on gold price of $2,000/oz.

Tailings Retreatment – South Africa | Uitdaging: Historic tailings dam contained 0.8 g/t Au, but conventional carboninleach (CIL) was uneconomical due to high reagent costs. | Oplossing: Used HGCC48 to preconcentrate the tailings, producing a 15 g/t Au feed for a small CIL plant. | Resultate: Reduced CIL plant size by 80%; operating cost dropped to $12/ton vs. $35/ton for full CIL; project achieved 18% IRR.

7. KOMMERSIËLE OORWEGINGS

Toerustingprysvlakke (FOB Port of Export):

• Basis Model (Manual Flush): $185,000 – Includes VFD, standard steel riffles, manual valve.
• Standaard Model (Semi-outomatiese): $245,000 – Includes PLC control, automated flush, karbiedgewere, dra monitering.
• Premium Model (Fully Integrated): $320,000 – Includes SCADA interface, afstanddiagnostiek, dualdischarge, hydraulic cooling package.

Opsionele kenmerke:

• Feed Slurry Distributor: $12,000
• HighPressure Wash Ring (vir klei): $8,500
• Onderdele Kit (1jaar aanbod): $22,000
• Uitgebreide waarborg (3 jare): $18,000

Dienspakkette:

• Ingebruikneming Pakket: $15,000 (3 dae ter plaatse, operateur opleiding, performance testing)
• Jaarlikse Onderhoudskontrak: $25,000 (2 terreinbesoeke, afstandmonitering, prioriteit onderdele versending)



Finansieringsopsies:

• 30% afbetaling, balanseer oor 36 maande by 6.5% APR (onderhewig aan kredietgoedkeuring)
• Huur-eiendom opsie: $6,500/maand vir 60 maande

8. Gereelde vrae

V: Can this concentrator handle high clay content without prescreening?
A: Ja, but only with the optional highpressure wash ring. Without it, clay can cause bed compaction, reducing recovery by 1015%. Field data shows the wash ring maintains 90%+ recovery at 25% klei inhoud.

V: What is the expected lifespan of the tungsten carbide riffles?
A: Bedryfstoetsing demonstreer 8,00010,000 operating hours for hardrock applications. For alluvial operations with high silica content, verwag 6,0008,000 ure. Standard steel riffles last 1,5002,000 ure.

V: How does this compare to a Knelson CD series?
A: Our unit uses a proprietary dualdischarge port design that reduces vibration by 40% compared to singleport designs. This extends bearing life and allows for higher Gforce operation (150 G vs. 120 G standard).

V: What is the minimum particle size for effective recovery?
A: The HGCC recovers free gold down to 25 microns at 85%+ doeltreffendheid. Hieronder 25 mikrons, recovery drops to 4060%. For sub10 micron gold, a flotation or leaching circuit is required.

V: Wat is die tipiese ROI tydperk?
A: Gebaseer op 'n 100 tpd operation with feed grade of 2 g/t Au and current gold prices, the standard model pays for itself in 69 months through increased recovery and reduced water costs.

V: Do you provide onsite commissioning?
A: Ja. Our commissioning package includes a certified technician for 3 dae. We also provide a 2day operator training program covering startup, afskakeling, probleemoplossing, and maintenance procedures.

V: What warranty is included?
A: Standaard waarborg dek 12 maande vanaf ingebruikneming of 18 maande vanaf versending, wat ook al eerste kom. Covers manufacturing defects in bowl, skag, en laers. Riffles are considered wear items and are not covered.