Raymond mill processes medical stone

• Publication time：2025-07-02
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What is medical stone?

Maifan Stone: Maifan Stone is a natural mineral rock, named for its surface being covered with particles similar to cooked barley or wheat grains. It evolved from volcanic rocks through geological processes and contains silicate minerals, volcanic rocks, and various trace elements. It has characteristics such as adsorbability, ion exchangeability, and the ability to dissolve out trace elements.

Application of Raymond Mill in Processing Maifan Stone

The Raymond mill features a clever structural design, occupying a small area and boasting a stable system. It is simple to operate and maintain, with low costs. Its environmental performance is excellent, equipped with a high - efficiency dust removal system and producing low noise. It is crucial in the processing of medical stone, capable of grinding medical stone to the required fineness in a short time. The product fineness and particle size distribution are uniform, and the fineness can be flexibly controlled.

Medical stone powder with different mesh numbers has unique applications in various fields.

80 - 200 mesh is used for agricultural fertilizers and soil improvement.

200 - 400 mesh is used for water purification materials and health product additives.

The process of processing medical stone with Raymond mill

Raw material pretreatment: It includes crushing and drying. Large pieces of medical stone need to be coarsely crushed into small particles of ≤3cm by a jaw crusher; medical stone with a moisture content of >5% needs to be dried, and the temperature should be controlled at ≤200℃.

Grinding: The electric motor drives the central shaft to rotate. The grinding roller rolls on the grinding ring under the action of centrifugal force. The shovel blade throws the material between the grinding roller and the grinding ring for grinding. The classifier conducts classification and screening of the ground medical stone powder by adjusting the rotation speed of the analyzer.

Finished product collection: The cyclone collector and the pulse dust collector work together to complete powder separation and dust recovery.

The key to processing medical stone with Raymond mill

autions: Since the hardness of medical stone is high, high manganese steel or alloy grinding rolls and grinding rings should be selected. Iron impurities may be present in the raw materials, so a magnetic separator needs to be installed. Dust control should be strict, ensuring closed - loop transportation throughout the process. The air pressure of the pulse dust collector should be ≥5000Pa, and a spray dust - reduction device can also be set up. Regularly sample and inspect the quality of the finished product, testing the fineness and heavy metal content.

Common problems: A decrease in production may be due to wear of the grinding rolls or improper rotation speed of the analyzer. It is necessary to replace the grinding rolls in a timely manner or adjust the angle of the classifier blades. If the finished product is too coarse or too fine, it is because the rotation speed of the analyzer and the air volume of the fan are not matched. It is necessary to accurately adjust the rotation speed of the analyzer and the air volume of the fan.

Summary

Due to its advantages such as high efficiency and energy conservation (energy consumption reduced by 30%-40%), controllable fineness (80 - 400 mesh), and environmental protection dust removal, the Raymond mill has become the preferred equipment for processing medical stone. Different mesh powders are made through pretreatment, grinding and classification, and finished product collection.

Click on the picture to learn about the details of the CRRM Raymond Mill