Wet Pan Mill for Gold Ore Grinding
High-Efficiency and Energy-Saving Solutions for Gold Ore Grinding
As a mining equipment manufacturer with 20 years of experience, we understand that in the gold ore processing flow, the grinding stage is a crucial link connecting crushing and separation, and its efficiency and cost directly affect the profitability of the entire processing plant. Among numerous grinding equipment options, the wet pan mill, with its unique advantages, has become an ideal choice for small and medium-sized gold mines and pilot projects. This article will delve into the application of wet pan mills in gold ore processing.
| Key Words | Wet Pan Mill for Gold Ore Grinding |
|---|---|
| Product Model | Wet Pan Mill |
| Feed Size | ≤30mm |
| Motor Power | 3-30kw |
| Capacity | 3-20t/h |
| Core Functions | Kinetic energy transfer + abrasion + hydraulic classification |
| Brand | Baichy Heavy Industry |
| Packing | Standard containers，Nude Packing，Wooden boxes, etc |
| Installation | Engineer Guide |
| Factory visit | Welcomed Warmly |
| Export Countries | Southeast Asia, Central Asia, South America, North America, Africa |
| Payment | T/T,L/C payment,Paypal...etc |
| Please note: The above table data is for reference only. For specific information, please contact us. | |
Overview and Analysis of Wet Pan Mills
The wet pan mill, also known as a wet grinding mill or gold mill, is a traditional but enduring grinding equipment. It primarily uses two heavy rollers rolling on a rotating pan to crush and grind materials through pressure and friction. In gold ore processing, it is typically used to further grind crushed ore, allowing for sufficient liberation of gold minerals, creating favorable conditions for subsequent cyanidation, gravity separation, or flotation operations.
Compared to ball mills, the working principle of the wet pan mill is more focused on grinding rather than impact, which makes it perform exceptionally well in processing ores with a certain degree of viscosity or in processes requiring simultaneous grinding and leaching. Its simple structure and ease of maintenance, along with relatively lenient requirements for feed particle size, make it particularly suitable for processing ores containing free gold, avoiding over-grinding and reducing the impact of fines on subsequent processes.
Gold grinding machine structural diagram
Core Advantages of Wet Pan Mills for Gold Ore Grinding
1. Low Investment and Operating Costs
The wet pan mill has a simple structure, and its initial purchase cost is significantly lower than that of a ball mill with the same processing capacity. Its power system is usually driven by a single motor, resulting in lower energy consumption, and it does not require complex auxiliary equipment (such as feeders and lubrication systems), significantly reducing infrastructure investment and daily operating costs.
2. High Recovery Rate and Adaptability to Various Processes
This equipment can maintain a high pulp concentration during the grinding process and can achieve grinding and leaching simultaneously by adding mercury plates or directly connecting to a cyanidation tank. This allows for immediate recovery of liberated free gold, effectively preventing gold loss and improving the overall gold ore recovery rate. It is also fully compatible with conventional CIP/CIL processes.
3. Simple Operation and Strong Adaptability
The equipment is easy to operate and requires minimal technical skills from workers. Its robust structural design can adapt to harsh working conditions and is insensitive to fluctuations in feed moisture and particle size. It is especially suitable for use in areas with unstable power supply or weak infrastructure, providing reliable support for small and medium-sized gold mining projects.
Gold grinding machine customer site
Success Story: A Tanzanian Gold Mine Project
We provided a wet pan mill solution for a gold mine project in Tanzania with a daily processing capacity of 50 tons of hard rock gold ore. The ore had complex properties, containing a certain amount of clay, and the client wanted to start production as soon as possible to recover their investment.
• Challenges: Unstable power supply, limited investment budget, and the need for the equipment to start production and generate profits quickly.
• Our Solution: We recommended and configured a 1200 model wet pan mill, combined with a small jaw crusher and vibrating screen to form a simple two-stage closed-circuit crushing and grinding process.
• Results: The equipment installation period was only one week, and it operated smoothly after commissioning. Due to the integrated grinding-leaching effect of the wet pan mill, when the grinding fineness reached 75% at -200 mesh, free gold was partially recovered during the grinding stage, greatly reducing the subsequent leaching load. Ultimately, the total gold recovery rate of the plant reached 89%, and the client was very satisfied with the return on investment.
Related Equipment Recommendations
An efficient gold ore processing line is not just about a single piece of equipment. To maximize the efficiency of the wet pan mill, we usually recommend the following combination:
• Jaw Crusher: As a primary crushing device, it provides appropriately sized raw materials for the wet pan mill.
• Spiral Classifier or Hydrocyclone: Used in a closed-circuit grinding system with the wet pan mill to control the final product fineness.
• Amalgamation Barrel/Centrifugal Gold Concentrator: Used to recover coarse free gold from the wet pan mill discharge, improving the immediate recovery rate.
• Carbon Slurry Agitation Tank: If using the CIP process, for subsequent cyanide leaching and adsorption.
Frequently Asked Questions (FAQ)
Q1: Which is more suitable for my gold mine, a wet pan mill or a ball mill?
This depends on your ore properties, scale, and budget. Wet pan mills are more suitable for small to medium-sized mines (processing less than 200 tons per day), those with limited investment budgets, mines with a high content of free gold, or those with limited power supply. Ball mills, on the other hand, are more suitable for large-scale, continuous production and applications requiring more uniform product fineness.
Q2: What is the lifespan of the wear parts of the wet pan mill? Is replacement complicated?
The main wear parts are the grinding pan liner and rollers. Made of high-chromium alloy material, the lifespan is typically 6-12 months when grinding gold ore. The replacement process is relatively simple, requiring no special tools, and can be operated by ordinary workers after simple training, minimizing downtime.
Q3: What are the equipment capacity and final grinding fineness?
Our wet pan mill models range from 600 to 1600, with processing capacities ranging from several hundred kilograms to several tons per hour. The final grinding fineness can be controlled by adjusting the mill discharge opening gap and classification equipment, and can usually stably reach 70%-85% passing -200 mesh, meeting the requirements of most gold ore leaching processes.
Perfect after-sales service
Baichy Heavy Industry provides professional on-site guidance for installation, training of workers, and other services to ensure that customers can use the equipment smoothly.
The company has a complete after-sales service system, which can provide customers with timely technical support and equipment maintenance services to ensure the long-term stable operation of the equipment.
To prevent the rights and interests of customers from being infringed, Baichy Heavy Industry reminds customers: please contact our customer service staff through the official website of Baichy Heavy Industry , or add WhatsApp: 15093222637 ; or send an email to: [email protected] , we will get in touch with you as soon as possible and provide you with the most professional service in the industry.
Baichy Heavy Industry
Baichy Machinery is a factory supplier of mining machinery, mainly focusing on stone crushers, powder grinding mills, and mineral beneficiation plants. We can offer you a free design and completed solutions according to your project.
Baichy Heavy Industry has grown into a high-tech mining equipment comprehensive enterprise, integrating R&D, manufacturing, sales, and after-sales service, Passing ISO9001:2015 quality management system certifications. The main products are mobile jaw crushing plants, construction waste crushing plants, PE jaw crushers, VSI sand-making machines, Symons cone crushers, single-cylinder hydraulic cone crushers, PCX high-fine crushers, grinding mills, ball mills, and full sets of beneficiation equipment with an excellent level.
