Large Capacity Dolomite Vertical Grinding Mill - Up to 500TPH | Vertical Roller Mill for Mining

Large Capacity Dolomite Vertical Grinding Mill - Up to 500TPH | Vertical Roller Mill for Mining

Description

The dolomite vertical mill is a vertical roller milling equipment specially designed for processing dolomite. It is widely used in industries such as building materials, metallurgy, and chemical engineering to grind dolomite into powders of different fineness for the production of refractory materials, glass, ceramics, fertilizers, etc.

Dolomite Grinding Mill Working principle: The electric motor drives the grinding disc to rotate through a reducer, and the material falls into the center of the grinding disc from the feeding port. At the same time, hot air enters the grinding chamber from the air inlet. Under the action of centrifugal force, the material moves towards the edge of the grinding disc and is crushed by the grinding roller when passing through the circular groove on the grinding disc. The crushed material is carried up by the high-speed airflow at the edge of the grinding disc, and large particles directly fall onto the grinding disc for re grinding. When the material in the airflow passes through the dynamic and static separator, under the action of the rotating rotor, the coarse powder falls onto the grinding disc for re grinding, and qualified fine powder is discharged with the airflow, Collect in the powder collection device, which is the product. Materials containing moisture are dried during contact with hot gases to achieve the required product moisture.

Technical Parameters Table

Re:The data based on Mohs'hardness 3-4 material
The product fineness can reach 10 um(1250 meshes)

Dolomite Vertical Mill Performance Attributes

• High Grinding Efficiency: Thanks to the special structural design of the grinding roller and disc, the dolomite vertical mill achieves high grinding efficiency, saving 40%-50% power consumption compared to traditional Raymond mills and ball mills.
• Adjustable Fineness of Finished Products: It can process dolomite powder with a fineness of 3-45 microns (325-5000 mesh). Through technologies such as frequency conversion control, it can adapt to different fineness requirements, meeting the needs of various industrial productions for dolomite powder fineness.
• Large Processing Capacity: The equipment has a high production capacity, with an hourly output of 1-22 tons or even higher. It can meet the needs of large-scale dolomite powder processing and help achieve the scale and industrialization of dolomite processing.
• Strong Drying Capacity: Hot air directly contacts the material inside the mill, effectively drying dolomite materials and eliminating the need for a separate dryer. It can handle dolomite raw materials with higher humidity, reducing investment in additional drying equipment and energy consumption.

Structural Attributes

• Integrated Design: Combining crushing, drying, grinding, classification, and conveying in one unit, it features a compact layout and small footprint, reducing the space occupation of the production workshop. It also simplifies the process flow and lowers the connection costs between equipment.
• Special Grinding Roller and Disc: The grinding roller is equipped with a limit device to avoid direct contact with the grinding disc, reducing vibration and wear and prolonging the equipment's service life. The roller sleeve can be reversed for use, further enhancing the roller's service life and reducing equipment maintenance costs.
• Advanced Powder Selection Device: Using the principle of a multi-head powder separator, each rotor can be frequency-controlled for speed adjustment. The fineness of the finished product after grinding can be achieved within the selected range, with high powder selection accuracy. Secondary air separation and classification are unnecessary, and there is no substandard material, ensuring the quality and particle size uniformity of the finished product.

Material Adaptability Attributes

• Suitable for Multiple Materials: In addition to dolomite, it is widely applicable to ultra-fine grinding of non-metallic minerals such as calcite, marble, limestone, heavy calcium, talc, and barite. It has strong versatility and can meet the processing needs of different users for various materials.
• Adaptable to Certain Humidity: It can handle materials with a humidity below 6%. For dolomite raw materials with some moisture, they can be ground without excessive drying, improving production flexibility and adaptability.

Environmental and Energy-Saving Attributes

• Low Dust Emission: The entire machine operates under sealed and negative pressure conditions, with no dust leakage. It is equipped with a pulse dust removal device, achieving a dust removal efficiency of over 99%. This effectively reduces environmental pollution from dust and health hazards to operators, improving the working environment.
• Good Noise Control: Through reasonable structural design and shock absorption measures, the equipment generates low noise during operation, meeting environmental protection requirements and reducing noise pollution to the surrounding environment.
• Energy Saving and Consumption Reduction: Compared with traditional powder grinding equipment, the dolomite vertical mill has lower energy consumption during the grinding process. It not only has obvious advantages in power consumption but also reduces equipment operation time and energy waste due to its efficient integrated grinding and drying design, lowering production costs.

Operation and Maintenance Attributes

• High Automation Level: Using PLC/DCS automatic control for grinding roller pressure, the grinding pressure is accurately controlled without manual operation. The equipment's operating parameters can be monitored and adjusted in real time through the control system, featuring simple and convenient operation, reducing labor intensity, and improving production efficiency.
• Low Maintenance Cost: Key components of the equipment, such as grinding rollers and discs, are made of high-quality materials with good wear resistance and long service life. Meanwhile, the structural design facilitates maintenance and repair, reducing maintenance time and costs.