Raymond mill processing talc

• Publication time：2025-07-11
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What is Talc?

Talc is a common silicate mineral with the chemical formula Mg₃Si₄O₁₀(OH)₂. In appearance, talc can be white, gray, light green, or light yellow. Its Mohs hardness is 1, which means it can be scratched by a fingernail and is easily split into thin flakes.

Applications of Raymond Mill in Processing Talc

Compared with other powder - grinding equipment, the Raymond mill has low noise, a compact structure, a small footprint, is easy to operate and maintain, and has a high cost - performance ratio. The product particle size can be adjusted from 200 to 400 mesh and has a wide range of applications.

Plastic industry: It enhances impact resistance and improves processing performance.

Coating field: It is used as a thickener and suspending agent.

Paper - making industry: It is used as a filler and coating.

Detailed Process of Raymond Mill Processing Talc

Crushing: Use a jaw crusher or hammer crusher to crush large - sized talc into particles with a size of ≤30mm. If the size is too large, it will reduce efficiency and may block the equipment; if it is too small, it will increase the crushing cost.

Drying: Since a high moisture content (＞6%) can cause material blockage and agglomeration, affecting the powder - grinding efficiency and equipment operation, a rotary dryer is used to reduce the moisture content.

Powder - grinding stage: Inside the main machine, the grinding rollers roll the talc under the action of centrifugal force, and cooperate with the grinding ring for shearing and extrusion. The classification system uses a high - speed rotating turbo - classifier to separate fine powder from coarse powder to ensure a uniform product particle size. Qualified fine powder is carried by the air flow through the pipeline into the collector, and after being collected by the cyclone collector and pulse dust collector, it is transported to the finished product silo.

Finished product treatment: Screening is carried out by configuring a vibrating screen according to the needs of different industries to precisely control the particle size. Packaging is done using an automatic packaging machine for sealing, and attention should be paid to moisture - proofing to ensure the quality of storage and transportation.

Precautions for Raymond Mill Processing Talc

Main machine power of the mill: Generally between 55 - 250kW, it should be selected according to production output and fineness requirements. Optimizing the transmission system and energy - saving measures can improve energy utilization efficiency.

Production output: Generally between 1 - 20t/h, the higher the fineness, the lower the output. It can be increased by optimizing the process, adjusting the gap, and maintaining the equipment.

Air volume and air pressure: They need to be matched with the system resistance. Excessive air volume or pressure will cause product loss, increase energy consumption and noise, while too small air volume will affect material transportation and classification. An adjustment device can be installed for real - time adjustment.

Anti - adhesion treatment: Talc is easy to adhere to the grinding rollers. Regularly clean the grinding chamber and add a small amount of grinding aids such as stearic acid to improve fluidity.

Avoid contamination: Ensure the equipment's tightness to prevent impurities from mixing in. For talc used in the cosmetics or food fields, magnetic separation is required to remove iron.

Safety protection: Talc fine powder has an explosion risk. Measures such as explosion venting, inerting, and explosion suppression should be taken. Set up spark detection and elimination devices, equip explosion - proof tools and personal protective equipment, install static eliminators, and install a fire - fighting system.

Summary

With its high - efficiency, energy - saving, and stable characteristics, the Raymond mill has become the preferred equipment for talcum powder processing. During production, attention should be paid to key aspects such as air volume control, anti - adhesion treatment, and safety protection to ensure product quality and improve production efficiency.

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