Ore grinding mill

• Publication time：2026-01-19
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Working Principle of Ore Grinding Machine  

Material Feeding  

Ore with a particle size of ≤30mm is steadily fed into the grinding machine through the feeding device, ensuring precise and continuous operation.  

Grinding and Classification  

The grinding rollers work in conjunction with the grinding ring under centrifugal force to crush and grind the material, with high-chromium alloy materials ensuring efficient pulverization. A blower introduces air to carry the fine powder toward the classifier, where high-speed rotation screens the powder. By adjusting the rotational speed, the fineness of the powder is controlled. Coarse powder that does not pass through the classifier returns to the grinding disc for re-grinding, improving efficiency and product quality stability while avoiding resource waste and energy consumption.  

Finished Product Collection  

Qualified fine powder enters the cyclone separator, where it is separated from the air under centrifugal force and falls into the finished product bin. Ultra-fine dust is collected by a bag filter.  

Application Areas of Ore Grinding Machine  

Non-metallic Ores  

The main application area includes limestone for the construction industry, calcite for papermaking and other industries, barite for petroleum drilling and chemical fields, among others.  

Metallic Ores  

Used in the grinding stage before mineral processing, such as iron ore, manganese ore, and chromium ore, to provide raw materials of suitable particle size for subsequent processes.  

Other Ores  

Phosphorus ore for agricultural fertilizers, carbon black for the rubber industry, clay for the ceramic industry, zeolite for environmental protection, and other fields.  

Special Cases  

Materials with a hardness above level 7 can wear down grinding rollers and rings, requiring other equipment. Excessively wet or sticky materials may cause clogging and require pre-drying. Materials sensitive to iron contamination require specialized grinding machines.  

Usage Recommendations for Ore Grinding Machine  

Pre-purchase Experiment  

Conduct grinding experiments with representative ore samples to understand the equipment's processing performance.  

Focus on Core Components  

Choose grinding rollers and rings made of suitable materials based on the abrasiveness of the material.  

System Compatibility  

Ensure supporting equipment such as feeders, elevators, and dust collectors are perfectly matched with the main machine.  

Environmental Requirements  

Equip with efficient bag filters and pay attention to noise control.  

Summary  

The ore grinding machine pulverizes ore with a particle size of ≤30mm into fine powder through its feeding, grinding and classification, and finished product collection systems. It is widely used in the processing of non-metallic and metallic ores, among others. During use, equipment selection should be based on material characteristics, with attention paid to system compatibility and environmental protection.