Title: HighCapacity, HighRecovery 500 TPH Gold Mining Washing Plant | Engineered for Maximum Uptime and ROI

1. PAINPOINT DRIVEN OPENING

Are you facing escalating operational costs and unpredictable recovery rates in your highvolume alluvial or eluvial gold operation? At a 500tonperhour scale, inefficiencies are magnified, directly eroding profit margins. Common challenges include:

Inconsistent Feed Handling: Variable clay content and oversized material cause frequent blockages in scrubbers and screens, leading to unplanned downtime that can cost thousands per hour in lost production.
Fine Gold Losses: Inadequate scrubbing and screening efficiency fails to fully liberate gold from gangue, while traditional sluicing at this scale often loses micron gold to tailings, sacrificing measurable recovery percentage points.
High Water & Power Consumption: Inefficient plant design leads to excessive water pumping requirements and nonoptimized power draw, creating unsustainable operational expenses and environmental management burdens.
Mobility & Setup Limitations: Fixed, modular plants lack the mobility needed for phased pit advancement, requiring costly disassembly and relocation that extends timetoproduction.

The central question for plant managers is this: how can you achieve consistent 500 TPH throughput with maximized recovery while controlling the operational costs that determine your project's viability?

2. PRODUCT OVERVIEW

This 500 TPH Gold Mining Washing Plant is a complete, modular processing system designed for the continuous mining of alluvial and eluvial deposits. It integrates feeding, washing, screening, and concentration into a single, coordinated flow to optimize recovery of both coarse and fine gold.

Operational Workflow:
1. Primary Feed & Scrubbing: Runofmine material is fed into a heavyduty hopper and conveyed to a robust rotary scrubber, which aggressively breaks down clay conglomerates and soft weathered rock.
2. Primary Screening & Size Classification: Discharged material is screened (e.g., on a doubledeck vibrating screen). Oversize (+75mm) waste is ejected via conveyor. Midsize material may be routed for secondary crushing or direct concentration.
3. Gravity Concentration: The undersize screen fraction (<1030mm), containing liberated gold, is distributed to a series of highcapacity gravity concentrators (such as centrifugal concentrators or jigs) designed for highvolume feed.
4. Tailings Management & Water Handling: Processed tailings are stacked via conveyor. Process water is typically sent to a settling/recirculation system to minimize fresh water consumption.

Application Scope & Limitations:
Scope: Ideal for largescale alluvial/eluvial placer deposits, weathered saprolite gold projects, and dredge feed preconcentration. Effective on materials with high clay content requiring intensive scrubbing.
Limitations: Not suitable for hard rock primary ore processing. Performance is contingent on appropriate feed sizing as per design parameters (typically <250mm). Requires a consistent water supply or closedloop system.

3. CORE FEATURES

HeavyDuty Rotary Scrubber | Technical Basis: Hightorque drive with internal lifters | Operational Benefit: Ensures complete disaggregation of claybound ore for maximum liberation | ROI Impact: Reduces gold losses in locked particles; field data shows a 38% recovery increase in clayrich feeds.

Primary Screening Module with Rubber Media | Technical Basis: Dualdeck vibrating screen with polyurethane or rubber screen panels | Operational Benefit: Highthroughput sizing with superior wear life and reduced blinding | ROI Impact: Lowers panel replacement frequency by up to 40% compared to steel wire panels, reducing parts inventory and maintenance downtime.

Parallel Gravity Concentration Circuit | Technical Basis: Multiple highGforce centrifugal concentrators operating in parallel | Operational Benefit: Maintains high recovery rates across fluctuating feed grades without bottlenecking throughput | ROI Impact: Provides scalable recovery; independent module control allows maintenance on one unit without full plant shutdown.

Centralized PLC Control System | Technical Basis: Programmable Logic Controller with HMI interface monitoring motor loads, feed rates, and pump status | Operational Benefit: Enables precise process control from a single station, allowing rapid response to blockages or surges | ROI Impact: Minimizes operator headcount per shift and prevents catastrophic equipment failure through automated shutdown sequences.

Modular SkidMounted Design | Technical Basis: Preassembled modules with flanged connections for piping and conveyors | Operational Benefit: Reduces onsite civil works and commissioning time by up to 60% compared to stickbuilt plants | ROI Impact: Faster deployment accelerates revenue generation; facilitates relocation between mine sites or pit phases.

Integrated Water Recirculation System | Technical Basis: Clarification tanks or thickeners for silt removal and water return | Operational Benefit: Cuts fresh water demand by 7085%, crucial for remote operations | ROI Impact: Drastically reduces water sourcing and pumping costs while simplifying environmental permitting.

4. COMPETITIVE ADVANTAGES

| Performance Metric | Industry Standard (Typical Plant) | Our 500 TPH Washing Plant Solution | Advantage (% Improvement) |
| : | : | : | : |
| Overall Gold Recovery Rate (Alluvial) | 8590% (incl. fines loss) | 9296% (with optimized circuit)| +5% to +8% |
| Mean Time Between Failure (Scrubber/Screen) | ~750 hours| >1,200 hours| +60% |
| Water Consumption per Ton Processed| ~3 m³/tonne| ~0.8 m³/tonne| 73% |
| Relocation & Reassembly Time (Modular)| 46 weeks| 1015 days| 50% to 60% |
| Power Efficiency (kWh per ton processed)| Varies widely; often suboptimized| Engineered drive systems reduce draw by ~15%| 15% |

_Based on optimized motor selection and variable frequency drive (VFD) implementation._

5. TECHNICAL SPECIFICATIONS

Design Capacity: 500 tonnes per hour (based on material density of ~1.6 t/m³).
Feed Size Maximum: 250mm.
Power Requirements: Approx. 800 – 950 kW total connected load (dependent on conveyor length & pump configuration). Supply voltage typically 1000V or as specified.
Key Material Specifications:
Scrubber Shell & Lifters: Abrasionresistant steel (AR400/450).
Screen Decks & Panels: Polyurethane / Rubber composite.
Concentrator Components:Ceramiclined or polyurethane wear parts.
Structural Steel:Fabricated from primegrade steel with ISOstandard corrosion protection.
Physical Dimensions (Approx., Modular):
Scrubber Module:L20m x W6m x H7m
Screening & Concentration Module:L25m x W10m x H8m
Entire plant footprint varies based on layout but typically requires ~40m x 80m area.
Environmental Operating Range: Designed for ambient temperatures from 20°C to +50°C. Dust suppression systems are standard; noise levels comply with common site regulations (<85 dB at 1 meter).

6. APPLICATION SCENARIOS

LargeScale Alluvial Operation in West Africa

Challenge:A major operator needed consistent highvolume processing but faced severe downtime due to sticky clay blinding screens every shift,and fine gold losses estimated at over $2M annually.Solution:A customconfigured500 TPH washing plant was deployed featuring an extended retention scrubber,a trommel screen instead of vibrating decks,and an expanded bank of fine gold concentrators.Results:Downtime from blinding was eliminated.Recovery rates improved from an estimated87%to94%,capturing an additional$150K$200Kin gold value monthly.Water recycling cut freshwater procurement costs by80%.

Eluvial/Saprolite Gold Project in South America

Challenge:A project transitioning from trial mining required rapid deployment of fullscale processing.The deposit had highly variable hardness,and the client needed mobility between three planned pits over24months.Solution:A fully modular skidmounted500 TPH plantwas selected.All intermodule connections were flanged.Results:The plant was commissioned in19 daysfrom delivery.Firstpit production targets were met within30 days.The entire system was relocated between pits within12 dayseach move,saving an estimated$400Kin lost production time per move comparedto conventional structures

7.COMMERCIAL CONSIDERATIONS

Pricingfora complete turnkey500TPHGold Mining Washing Plantis projectspecific due to customization around feed characteristics site layoutand concentration method

Core Equipment Package TierIncludes primary feeding scrubbing screeningand base gravity concentration circuits

Optional Features& Upgrades:
Fine Gold Recovery Circuit addition e g sluices tables
Secondary crushing modulefor middlings
Advanced process control instrumentationwith automated dosing
Diesel power generation package
Containerized laboratoryworkshop facilities

Service Packages:
StandardCommissioning supervisionoperator training spare parts kit
PremiumExtended warrantyon structural components scheduled maintenance visits remote monitoring support

Financing OptionsWe work with international export credit agenciesand equipment financing partners to structure solutions including leasetoown arrangementsand milestonebased project financing

8.FAQ

Q:What if my feed material size exceeds the250mm specification?
A:The plant design can incorporate an upstream grizzlyor a small primary jaw crusher module sized specificallyfor your oversize profile ensuring protection ofthe core washing circuit

QHow does thisplant handle significant fluctuationsin feed grade?
AThe parallel configurationofthe gravity concentrators allows operators totake units offlineor adjust parameters without affecting throughput Lowgrade periods can be managed efficiently maintaining profitability

QWhatisthe expected lead timefrom order todelivery?
AFora standard configuredplant lead times typically rangebetween20and28weeksCustom designs may require additional engineering time Detailed schedules are provided upon project definition

QAre operators providedwith training?
AYes comprehensive trainingis part ofthe commissioning package covering normal operation troubleshooting safety proceduresand preventive maintenancefor your onsite team

QCan thisplant be integratedwith an existing carboninleach CIL circuit?
AYes The washing plantserves asan effective preconcentrator It can be configuredtoproducea highgrade gravity concentratefor direct smeltingwhile sending lower grade middlingsor slimes toastreamlined CIL circuit drastically reducingthe overall cyanide consumptionand tankage requirements