Ultrafine grinding mill processing graphite

• Publication time：2025-08-21
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Advantages of Ultrafine Grinding Mills in Graphite Processing

High Output and Efficiency

In mass production of graphite powder with conventional mesh sizes (such as 80 - 600 mesh), it has obvious advantages in continuous operation capability and single - machine output.

Stable Operation and Simple Operation

With mature technology and good stability, it has a long average trouble - free operation time, reducing production interruptions. It has a high degree of automation and simple operation. The operating parameters can be easily adjusted through the intelligent control system, which reduces the requirements for the professional skills of operators and improves the stability of product quality.

Wide Application Range

It can process natural flake graphite and microcrystalline graphite with different degrees of crystallization, meeting the needs of different enterprises for raw materials and production.

Good Cost - Effectiveness

The equipment has low purchase and operation costs, low energy consumption. The large output reduces the energy consumption cost per unit product, and the maintenance cost is also low, so it has a high cost - performance ratio in the middle and low - end graphite processing fields.

Process of Graphite Processing by Ultrafine Grinding Mills

The core principle of the ultrafine grinding mill is rolling and crushing. The main motor transmits power to the main shaft through the transmission device, driving it to rotate at a high speed. The grinding roller device (usually 3 - 4) installed on the plum blossom frame revolves around the central axis under the drive of the main shaft, and at the same time rotates due to friction. Under the action of centrifugal force, the grinding roller presses on the grinding ring. Materials enter from the feed port, are thrown into the "grinding battlefield" between the grinding roller and the grinding ring by the scraper, and are ground into fine particles by rolling and grinding. The crushed fine powder is blown up by the air flow, classified by the analyzer, and the qualified fine powder enters the cyclone collector to become the product, while the coarse powder falls back to the grinding disc for re - grinding.

Key Points of Graphite Processing by Ultrafine Grinding Mills

Crystal Structure

The strong rolling and grinding forces will destroy the flake structure of natural flake graphite, affecting the utilization of graphite's lubricity, conductivity, thermal conductivity and flexibility in high - end applications.

Product Purity

The wear of metal parts such as grinding rollers and grinding rings during the grinding process will lead to iron pollution mixed into the product. Although the use of ceramic grinding rings can reduce pollution, they have poor wear resistance and increase costs. Iron impurities are harmful to applications in electronic and electrochemical fields such as lithium battery anode materials.

Fineness Upper Limit

Theoretically, it can grind very fine, but it is very difficult to reach ultra - fine powder (D97 < 10μm) or even micron and sub - micron levels. Energy consumption increases, efficiency decreases, and the requirements for the accuracy of the analyzer and the performance of the fan are extremely high, making it difficult to produce high - value - added ultra - fine graphite powder economically and efficiently.

Temperature Rise

The heat generated by high - speed grinding may cause graphite oxidation, affecting quality, and may also cause thermal expansion of equipment components, leading to unstable operation and increasing the risk of failures.

Summary

Ultrafine grinding mills have significant advantages in graphite processing: large output, high efficiency, prominent single - machine output and continuous operation capability in mass production of 80 - 600 mesh conventional powder, stable operation and simple operation.