Wet Pan Mill
High Efficiency Gold Ore Wet Grinding Pan Mill for Fine Gold Milling & Maximum Recovery
Wet Pan Mill is a professional wet fine grinding equipment specially developed forgold ore and precious metal minerals. Different from ball mills, it adopts roller extrusion and wet grinding principle to crush ores while completely retaining complete gold particles. Featuring ultra-low gold loss, uniform grinding fineness, low investment and easy operation, it is the optimal fine grinding equipment matched with shaking tables and jiggers for small and medium gold mines.
Low Investment
Simple Operation
Low Maintenance
What is Wet Pan Mill?
In traditional gold ore processing, ball mills are widely used for grinding, but they have obvious defects in fine gold processing. The high-speed impact and collision of steel balls cause severe over-grinding of fine gold particles, turning granular gold into ultra-fine slime that cannot be recovered by gravity separation, resulting in serious gold resource loss. In addition, ball mills have high equipment investment, high power consumption and complex maintenance, which greatly increases the production cost of small and medium-sized mines.
Our Gold Wet Pan Mill perfectly solves the pain points of traditional grinding equipment. It uses heavy-duty grinding rollers for slow extrusion and abrasive wet grinding, which crushes gangue minerals fully while protecting gold particles from over-grinding. The wet grinding mode avoids dust loss and realizes ultra-fine uniform ore grinding. With low price, low power consumption and high recovery rate, it has become the mainstream fine grinding equipment for global small-scale gold mines, greatly improving comprehensive mining economic benefits.
Core Structural Composition & Advantages of Wet Pan Mill
1. Thickened Wear-Resistant Grinding Roller & Pan
The grinding roller and pan are made of high-chromium wear-resistant alloy steel through integral casting. The overall hardness is high, with strong compression resistance and abrasion resistance. It can withstand long-term high-load ore grinding without deformation and wear, ensuring stable grinding fineness for a long time and reducing frequent replacement costs of wearing parts.
2. Heavy-Duty Pressure Grinding Structure
Equipped with self-weight pressurized grinding roller structure, relying on pure mechanical gravity extrusion for grinding. The grinding force is uniform and stable, which can fully dissociate gold from gangue minerals. It avoids the material flying and uneven grinding caused by unstable pressure of traditional grinding equipment.
3. Low-Speed Protective Grinding System
Adopts low-speed rotating grinding design, no high-speed impact force. It fundamentally solves the problem of fine gold over-grinding and slime formation of ball mills. Gold particles keep complete granular shape, which is convenient for gravity separation and recovery, greatly reducing invisible gold loss.
4. Closed Wet Grinding Design
Full wet slurry grinding mode, completely eliminating dust flying and mineral loss. The sealed grinding pan structure avoids slurry splashing, ensures clean production environment, and conforms to global environmental protection mining standards. The circulating water system further reduces production costs.
5. Stable Transmission & Energy-Saving Motor
Equipped with high-torque reducer and energy-saving motor, the transmission is stable with low noise and low power consumption. Compared with ball mills of the same processing capacity, the power saving rate is more than 40%. The simple transmission structure has low failure rate and stable long-term operation.
6. Integrated Compact Structure
The whole machine has a compact integrated design, covering small area and convenient for on-site installation and layout. No complex foundation installation is required, suitable for mobile production sites and small mining workshops, with strong site adaptability.
Core Product Advantages of Wet Pan Mill
1. Ultra-Low Gold Loss, Maximum Recovery Rate
The biggest advantage of wet pan mill is no over-grinding of gold particles. Different from ball mill impact crushing, extrusion grinding retains complete gold particles, avoids fine gold slime loss that cannot be recycled, and increases the overall gold recovery rate of the mine by 5%-15%.
2. Uniform & Adjustable Grinding Fineness
Through adjusting grinding time and roller gap, the ore grinding fineness can be flexibly controlled to meet different beneficiation process requirements. The ground ore particles are uniform with few coarse particles and no excessive fine powder, which greatly optimizes the working efficiency of subsequent shaking tables and jiggers.
3. Low Investment & Ultra-Low Operating Cost
The equipment price is far lower than ball mill, with low early investment threshold. It features low power consumption, few vulnerable parts and simple daily maintenance. No auxiliary equipment and complex supporting facilities are needed, which greatly saves electricity cost, labor cost and maintenance cost for small mines.
4. Green Wet Grinding & Dust-Free Operation
100% wet grinding production, no dust pollution and no mineral flying loss. The production water can be recycled and reused, zero discharge of waste water, fully meeting international green mining and environmental protection standards, avoiding environmental penalty risks for mines.
5. Simple Operation & Low Maintenance
Fully automatic circulating grinding, one-person operation can complete feeding, grinding and discharging work. The mechanical structure is simple and stable, without complex electrical control system. Daily maintenance only needs regular cleaning and lubrication, with extremely low operation threshold.
6. Professional Pre-Grinding for Gravity Separation Line
It is the best supporting fine grinding equipment for gravity separation process. It perfectly matches jigger, spiral chute and shaking table to form a complete gold ore processing line, solving the problem of poor beneficiation effect caused by incomplete gold dissociation and uneven particle size.
Working Principle & Production Flow of Wet Pan Mill
Core Working Principle
The Wet Pan Mill adopts static extrusion wet grinding technology. The motor drives the grinding roller to rotate stably around the pan disc. Gold ore slurry enters the grinding pan evenly, and the heavy roller squeezes and grinds the ore repeatedly. Gangue minerals with low hardness are crushed into fine powder, while high-density gold particles are pressed and settled at the bottom of the pan without over-grinding.
During continuous rotating grinding, the ore realizes layered crushing and fine grinding. Qualified fine-grained ore overflows through the discharge port, and unqualified coarse materials stay in the pan for circulating grinding. The whole wet grinding process ensures complete dissociation of gold and gangue, maximizes the exposure of gold particles, and creates the best feeding conditions for subsequent gravity separation equipment.
Matching Production Process
Raw Ore Crushing → Ore Washing → Wet Pan Mill Fine Grinding → Slurry Classification → Jigger/Spiral Chute Pre-Concentration → Shaking Table Fine Separation → High-Purity Gold Concentrate Recovery
Application Scenarios of Wet Pan Mill
Main Application Fields
Wet Pan Mill is specially designed for fine grinding of precious metal ores, widely used in small and medium gold mines, placer gold processing plants and tailings secondary recovery projects. It is mainly used for fine grinding and monomer dissociation of gold ore, replacing traditional ball mills. It supports all gravity separation processes and is also applicable to fine processing of silver ore, tantalum niobium ore and other high-density precious metal minerals.
Best Matching Production Line
Ore Crushing → Washing Screening → Wet Pan Mill Fine Grinding → Slurry Classification → Gravity Separation (Jigger/Spiral Chute/Shaking Table) → High-Purity Gold Concentrate → Tailings Recycling
Global Project Cases of Wet Pan Mill
Case 1: Small Scale Gold Ore Processing | Ghana Gold Mine
Project Info: The customer is a small local gold mine with limited budget, unable to bear high ball mill investment and operating costs. Our 1200 model wet pan mill is adopted for fine grinding. The low-loss grinding mode effectively retains complete gold particles, increases gold recovery rate by 12%, and greatly reduces daily electricity and maintenance costs, achieving low investment and high return.
Case 2: Fine Gold Tailings Recovery | Sudan Mineral Processing Plant
Project Info: The residual fine gold in the old tailings is difficult to recover due to insufficient dissociation. The customer uses wet pan mill for secondary fine grinding of tailings, fully dissociating wrapped fine gold particles. Combined with shaking table fine separation, the tailings gold recovery rate is significantly improved, creating additional profits for the mine.
Case 3: Precious Metal Ore Refining | Tanzania Silver Mine
Project Info: Silver ore is easy to be over-ground and lost during grinding. Our wet pan mill adopts low-speed extrusion grinding to protect silver particles from damage. The uniform grinding fineness optimizes the subsequent separation effect, effectively improving silver concentrate grade and resource utilization rate.
FAQs of Wet Pan Mill
Q1: What is a wet pan mill used for?
A: Wet pan mill is a professional wet fine grinding equipment, mainly used for gold ore and precious metal ore grinding. It fully dissociates gold from gangue with ultra-low gold loss, serving as the core pre-grinding equipment for gravity separation production lines.
Q2: What is the difference between wet pan mill and ball mill?
A: Wet pan mill adopts extrusion grinding to retain complete gold particles with low loss, low power and low investment, suitable for fine gold processing; ball mill adopts impact grinding, easy to cause gold over-grinding and loss, with high cost, suitable for large-scale bulk ore grinding.
Q3: What grinding fineness can wet pan mill achieve?
A: The grinding fineness is adjustable from 80 to 200 mesh, which can meet the fine grinding requirements of most gold ore gravity separation processes, with uniform particle size and no excessive fine powder.
Q4: Does wet pan mill cause gold loss?
A: Almost zero invisible loss. Low-speed extrusion grinding avoids gold particle crushing and slime formation. Compared with ball mills, it effectively solves the problem of fine gold loss and greatly improves the final recovery rate.
Q5: Is wet pan mill easy to maintain?
A: Yes. Simple mechanical structure with few vulnerable parts. Only regular cleaning of the grinding pan and lubrication of transmission parts are required. It has low failure rate and extremely low long-term operating cost.
Technical Parameters of Wet Pan Mill
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Item
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Specification
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Machine Model
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1100 / 1200 / 1300 / 1500 Wet Pan Mill
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Pan Diameter
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1100mm / 1200mm / 1300mm / 1500mm
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Processing Capacity
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0.5 – 3 TPH According to model
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Grinding Fineness
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80 – 200 Mesh Adjustable
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Roller Quantity
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2pcs / 3pcs Customizable
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Motor Power
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7.5KW – 15KW Energy-saving motor
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Grinding Mode
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Wet extrusion circulating grinding
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Core Function
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Gold ore fine grinding, gold-gangue dissociation, particle refining
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Applicable Minerals
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Gold ore, silver ore, tantalum niobium ore, other precious metal ores
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Core Features
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Low gold loss, energy-saving, dust-free, high recovery, low cost
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Get Custom Wet Pan Mill Solution
Our Wet Pan Mill breaks through the fine gold loss pain point of traditional ball mill grinding, with core advantages of low gold loss, high grinding fineness, energy saving and low investment. It is the most cost-effective fine grinding equipment for small and medium gold mines worldwide, perfectly matching jiggers, spiral chutes and shaking tables to maximize gold recovery rate and mine economic benefits.
Contact us now for free ore testing, model selection and accurate customized quotation!
