Multi-Metal Ore Crushing and Grinding Solutions
Polymetallic ores, as the name suggests, refer to ores containing two or more economically valuable metal elements, such as copper-lead-zinc ore, copper-molybdenum ore, and gold-silver polymetallic ore. These ores have complex mineral compositions, uneven particle sizes, and close symbiotic relationships, posing significant challenges to mineral processing and separation. Crushing and grinding, as the bottleneck stages of the mineral processing process, directly determine the efficiency of subsequent separation operations and the final concentrate grade. An efficient, stable, and energy-saving crushing and grinding solution is the first key to unlocking the economic value of polymetallic ores.
As a mineral processing equipment manufacturer with 20 years of professional experience, we understand that there is no one-size-fits-all solution. For the specific characteristics of polymetallic ores, a customized full-process solution from coarse crushing to fine grinding is essential to maximize single-particle liberation, minimize over-grinding, and minimize energy consumption.
| Key Words | 1 t/h 900x1800 Small Ball Mill |
|---|---|
| Product Model | Ball Mill |
| Feed Size | ≤25mm |
| Motor Power | 18.5-4500kw |
| Capacity | 0.65-615t/h |
| Core Functions | Grinding precision and particle size controllability |
| 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. | |
Core Advantages: What makes our polymetallic ore crushing and grinding solution superior?
Our solution provides not only inpidual equipment but also a proven system engineering approach.
Efficient and Energy-Saving Crushing System
Addressing the varying hardness of polymetallic ores, we employ a multi-stage crushing and stage screening process. Core equipment such as jaw crushers are used for coarse crushing, and cone crushers for medium and fine crushing. Their layered crushing principle effectively reduces flaky and needle-shaped particles, producing uniformly sized products and creating favorable conditions for grinding. The system is equipped with efficient dust removal and noise reduction devices to achieve green production.
Precise and Controllable Grinding Process
Grinding is crucial in determining the degree of mineral liberation. We recommend a single-stage grinding + closed-circuit classification or stage grinding + stage separation process. The core equipment, a ball mill and hydrocyclone, form a closed circuit, or a more energy-efficient vertical mill can be used. By precisely controlling the grinding concentration, fineness, and circulating load, we ensure sufficient liberation of valuable minerals while minimizing over-grinding and sludging, laying a solid foundation for subsequent differential flotation. Intelligent Optimization and Stable Operation
The solution integrates an advanced PLC automatic control system, which can monitor key parameters such as crusher load, mill current, pulp concentration, and particle size in real time, and automatically adjust the feeding rate and equipment operating status. This ensures that the entire crushing and grinding process remains stable at optimal operating conditions for a long time, significantly reducing labor costs and operating risks.
Actual Application Case: A Large-Scale Copper-Lead-Zinc Polymetallic Mine Project
A large-scale complex copper-lead-zinc mine in China had low ore grade, fine disseminated particle size, and complex symbiosis. The original production line suffered from uneven grinding product particle size, severe over-grinding, and high energy consumption.
We provided a customized solution: coarse crushing using C-series jaw crushers, and medium and fine crushing using multi-cylinder hydraulic cone crushers to achieve more crushing, less grinding; the grinding section used a large energy-saving ball mill and a high-frequency fine screen in a closed circuit to precisely control the final grinding fineness to 85% passing -200 mesh.
Implementation Results: The crushing system's processing capacity increased by 25%, the proportion of qualified particle size in the final grinding product increased by 15%, the over-grinding rate decreased by 10%, and overall energy consumption decreased by 18%. This created excellent conditions for the subsequent preferential flotation separation of copper, lead, and zinc, and significantly improved the overall plant recovery rate.
Related Equipment and Technology Recommendations
• Core Crushing Equipment: Hydraulic jaw crusher, multi-cylinder hydraulic cone crusher.
• Core Grinding Equipment: Energy-saving overflow ball mill, cone ball mill, hydrocyclone group.
• Auxiliary and Optimization Systems: Automatic ore bin feeder, metal detector, magnetic separator, online particle size analyzer, full-process intelligent control system.
• Featured Technologies: More crushing, less grinding process design, automatic grinding concentration control, wear-resistant rubber liner application.
Frequently Asked Questions (FAQ)
1. For processing polymetallic ores, is a ball mill or a vertical mill better?
This depends on the ore characteristics, investment budget, and product requirements. Ball mills are highly adaptable, insensitive to changes in feed particle size, and reliable in operation, making them a safe choice in most cases. Vertical roller mills offer significant energy savings (up to 30-50%) in grinding medium-hardness ores and require less space, but they have higher initial investment costs and stricter requirements for feed particle size and moisture content. We need to conduct simulations and provide recommendations based on your specific ore test report.
2. How to effectively reduce over-grinding of polymetallic ores?
The key lies in early recovery and precise control. First, reduce the particle size of the crushed ore as much as possible before grinding (implementing more crushing, less grinding). Second, adopt a stage grinding + stage separation process to promptly separate the liberated minerals. Finally, use high-efficiency classification equipment (such as hydrocyclones or fine screens) in the grinding circuit to strictly control the circulating load ratio and classification efficiency, preventing qualified fine particles from being over-ground in the mill.
3. Can your solution guarantee the long-term stability of the equipment? How do you address wear and tear?
Absolutely. The key components of our core equipment (such as crushing walls, grinding bowl liners, mill liners, and grinding balls) are made of wear-resistant materials such as high-chromium alloy, high-manganese steel, or special rubber, and their structures are optimized through finite element analysis to extend their service life. At the same time, we provide a comprehensive spare parts inventory and rapid response service, and can predict wear cycles based on operating data to develop preventive maintenance plans and maximize equipment uptime.
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.
