Ultra-fine grinding mill processes talc

• Publication time：2025-08-11
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What is talc?

Talc is soft in texture, with a Mohs hardness of only 1, and has a unique flaky structure. It is widely used in the industrial field. For many high - end applications, the fineness requires D97≤10μm, the whiteness generally requires ≥90%, and the content ratio of SiO₂/MgO and the impurity situation in terms of purity also directly affect its performance.

Advantages of Ultrafine Grinding Mill in Processing Talc

Precise Classification

The built - in dynamic classification wheel can precisely control the fineness of talcum powder by adjusting the rotation speed. It is suitable for the production of 800 - 2500 - mesh ultrafine powder, improving production efficiency and product quality stability.

Low - temperature Crushing

The circulating air - cooling system controls the internal temperature of the equipment to be <60℃, protecting the layered structure of talc, preventing powder agglomeration, and ensuring dispersibility and fluidity.

Low - iron Pollution

The grinding rolls and grinding rings are made of high - chromium alloy or ceramic materials, which are wear - resistant and reduce the mixing of metal impurities, ensuring the high whiteness of talcum powder.

Energy - saving and High - efficiency

The energy consumption is 30% - 50% lower than that of the air - flow mill, and the production capacity ranges from 0.5 - 10t/h, meeting the needs of most medium - sized enterprises.

Process of Ultrafine Grinding Mill in Processing Talc

Coarse Crushing

The jaw crusher crushes the original talc ore to a particle size of less than 10mm.

Drying

If the moisture content exceeds 1%, it is dried in a dryer at a temperature not exceeding 110℃ to avoid affecting the quality.

Grinding and Classification

The pretreated talc enters the ultrafine grinding mill. The feeding system conveys it evenly. The grinding rolls crush it by rolling, and the classification wheel screens it. Qualified fine powder enters the collection system, and the coarse powder returns to the grinding area.

Collection and Packaging

The qualified fine powder enters the pulse dust collector with the airflow for collection and is finally packaged in ton bags.

Key Points of Ultrafine Grinding Mill in Processing Talc

Yellowing of Powder

For iron pollution, components with low - iron pollution materials can be used and replaced regularly; for over - heating oxidation, the cooling system can be strengthened.

Production in High - end Fields

Configure a ceramic lining and a nitrogen - protection system to ensure purity.

Integrated Production

Combine with an ultrasonic sieve and a modifier to improve the fineness, uniformity, and surface properties of the product.

Summary

The ultrafine grinding mill can efficiently produce high - quality talcum powder to meet the needs of different industries by optimizing parameters and supporting processes.