| Key Words | Mining Dry Ball Mill |
|---|---|
| Product Name | Dry Ball Mill |
| Feed Size | ≤25mm |
| Motor Power | 18.5-800KW |
| Capacity | 0.65–90 t/h |
| Core Functions | Dispersion of solids in liquid. |
| Brand | Mascot 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. | |
A dry ball mill is a kind of high-efficiency grinding equipment that grinds materials without adding any liquid, mainly relying on the impact and friction between steel balls (grinding media) and between the media and the mill lining to crush and refine materials. Different from the wet ball mill that needs to add water or other liquids during the grinding process, the dry ball mill is especially suitable for materials sensitive to moisture or production processes that need to directly obtain dry powder, which simplifies the post-processing procedure and avoids material caking caused by moisture.
The working principle of Mascot dry ball mill is based on the dual effects of impact and grinding. When the equipment is running, the motor drives the cylinder to rotate through the transmission device, and the steel balls inside the cylinder are lifted to a certain height under the action of centrifugal force, then fall freely or roll, exerting a strong impact on the materials entering the cylinder. At the same time, the friction between the steel balls and the lining plate, as well as between the steel balls and the materials, further grinds the materials into the required fineness.
The materials enter the cylinder through the feeding device in a spiral and uniform manner, and after being fully ground in the first chamber (equipped with stepped or corrugated lining plates to enhance the impact effect), they enter the second chamber (equipped with flat lining plates to enhance the grinding effect) through the partition board for further grinding. Finally, the qualified powder is discharged through the discharging device, and the unqualified powder is returned to the cylinder for re-grinding, forming a closed-loop grinding system to ensure the uniformity of the finished product granularity.
Compared with ordinary dry ball mills and wet ball mills on the market, Mascot dry ball mill has obvious competitive advantages in performance, efficiency, environmental protection and maintenance, which can effectively help mining enterprises reduce production costs and improve market competitiveness. The specific advantages are as follows:
Mascot dry ball mill can handle various dry materials in the mining industry, including metal ores (iron ore, copper ore, gold ore, lead-zinc ore, etc.), non-metallic ores (limestone, gypsum, marble, quartz sand, etc.) and building materials (cement clinker, coal powder, slag, etc.). It can process materials with a feed size of ≤25mm and a moisture content of <4%, and the finished product fineness can be flexibly adjusted between 45-300μm according to production needs, which is widely applicable to different mining production scenarios and meets the grinding needs of various ores.
Mascot dry ball mill adopts an optimized cylinder structure and scientific steel ball grading design, which greatly increases the effective contact area between materials and steel balls, making the grinding efficiency 20%-30% higher than that of ordinary dry ball mills. At the same time, the equipment is equipped with an automatic thin-oil lubrication system, which reduces friction between components, prolongs the oil change cycle, and reduces energy consumption by 15%-25% compared with ordinary products. The motor power of the equipment ranges from 18.5KW to 800KW, and the processing capacity is 0.65-90t/h, which can be customized according to the actual production scale of the enterprise, realizing the balance between efficiency and energy saving.
The cylinder of Mascot dry ball mill is made of thick welded steel plates (thickness 15-36mm), and cast steel flanges are welded at both ends, which greatly enhances the structural strength and wear resistance of the equipment. The lining plate is made of high-quality wear-resistant materials (manganese steel or rubber), which has excellent impact resistance and wear resistance, and its service life is 3-5 times that of ordinary lining plates. All key components are precision processed and strictly tested before leaving the factory, ensuring stable operation of the equipment and reducing the failure rate to less than 3% per year, which greatly reduces the maintenance cost of enterprises.
A large iron ore mining enterprise in Central Asia was facing problems such as low grinding efficiency, high energy consumption and serious dust pollution in the production process. The enterprise originally used ordinary dry ball mill, which could not meet the production demand of 30t/h, and the energy consumption per ton of ore reached 80kWh, which greatly increased the operation cost. After comparing multiple manufacturers, the enterprise chose Mascot dry ball mill (model: MBM-1500) to solve the grinding problem.
According to the enterprise’s production needs, Mascot technical team customized a set of grinding solutions, matching the dry ball mill with a high-efficiency pulse dust collector and a belt scale feeder to form a complete grinding system. After installation and commissioning, the equipment operated stably, with a daily processing capacity of 720 tons, which fully met the enterprise’s production demand. The grinding efficiency was increased by 28% compared with the original equipment, and the energy consumption per ton of ore was reduced to 58kWh, saving about 120,000 US dollars in annual energy costs.
In addition, the dust emission concentration of the system was controlled below 25mg/m³, which met the local environmental protection standards and solved the problem of dust pollution. Up to now, the equipment has been running stably for more than 18 months, with a failure rate of less than 2%, and the enterprise highly recognizes the performance and service of Mascot dry ball mill, and has signed a long-term cooperation agreement with us.
The dry ball mill is an important core equipment in the mining grinding production line, which needs to be matched with appropriate supporting equipment to maximize its performance. As a professional mining equipment manufacturer, Mascot provides a complete set of supporting equipment for dry ball mill, which can be customized according to the actual production needs of enterprises. The key supporting equipment is as follows:
As the primary crushing equipment, the jaw crusher is used to crush large ore (feed size ≤300mm) into small particles (≤25mm) that meet the feeding requirements of the dry ball mill. Mascot jaw crusher has strong crushing capacity, stable operation and low noise, which can effectively improve the feeding efficiency of the dry ball mill and reduce the wear of the mill.
It is specially matched with the dry ball mill to treat the dust generated during the grinding process, ensure environmental protection and compliance, and can also recover the fine powder in the dust, improving the resource utilization rate. Mascot pulse dust collector has high dust removal efficiency, simple maintenance and long service life, which is the best choice for dry ball mill dust control.
It is used to uniformly feed materials into the dry ball mill, avoid uneven feeding leading to mill blockage or low grinding efficiency. The belt scale feeder is equipped with a weighing sensor and frequency conversion control system, which can accurately control the feeding amount, ensuring the stable operation of the dry ball mill and improving the grinding quality.
A1: Mascot dry ball mill is suitable for materials with a moisture content of <4%. If the moisture content of the material exceeds 4%, it is easy to cause caking in the mill, affecting the grinding efficiency and product quality. For materials with high moisture content, we recommend matching the dry ball mill with a single cylinder dryer to dry the material first, reducing the moisture content to the required standard before grinding. In addition, the inner wall of Mascot dry ball mill is equipped with anti-sticking lining plates, which can effectively reduce material caking and ensure smooth operation of the equipment.
A2: The key to prolonging the service life of the dry ball mill is regular maintenance. The main maintenance points are as follows: First, check the wear of the lining plate and steel balls regularly (once a month), and replace them in time when the wear is serious; Second, check the lubrication system regularly, ensure that the lubricating oil is sufficient and clean, and replace the lubricating oil according to the specified cycle; Third, clean the dust removal system regularly to avoid blockage affecting the dust removal effect and equipment operation; Fourth, check the tightness of the transmission device regularly, and adjust it in time if there is looseness. Following these maintenance points can effectively prolong the service life of the equipment by 20%-30%.
A3: Compared with wet ball mill, the core advantages of dry ball mill are: no need to add water, suitable for moisture-sensitive materials; no need for post-processing drying, simplifying the production process; low water consumption, suitable for water-scarce areas; low wastewater treatment cost, more environmentally friendly. The choice between the two depends on the material characteristics and production needs: if the material is sensitive to moisture or needs to directly obtain dry powder, choose dry ball mill; if the material has high moisture content and the subsequent process requires wet materials, choose wet ball mill. Mascot technical team can provide professional selection guidance according to your specific production scenario.
Zhengzhou Mascot Industry is a high-tech mining equipment company integrating R&D, manufacturing, sales, and after-sales service. Focusing on crushing, grinding, and mineral processing equipment, we provide professional solutions to our customers. We are ISO9001:2015 、certified, and our products include mobile crushing palnts, crawler crushing plant, construction waste crushing plants, jaw crushers, sand making machines, cone crushers, fine crushers, grinding mills, ball mills, etc., all with reliable performance to meet perse project needs.
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• Professional pre-sales support: Free project design and comprehensive solutions to help you accurately select the right equipment;
• Comprehensive on-site service: Providing installation guidance and worker training to ensure smooth equipment commissioning;
• Reliable after-sales guarantee: A complete after-sales system, timely response to technical inquiries and equipment maintenance, ensuring long-term stable operation.
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