Method for more efficiently spheroidizing high quality graphite particles

By using a free coolant mixed with graphite material for rapid cooling in a spherical sieve, the problem of poor temperature control was solved, resulting in a more efficient and stable spheroidizing process, which improved product quality and processing efficiency.

CN122141539APending Publication Date: 2026-06-05NETZSCH TROCKENMAHLTECHNIK GMBH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NETZSCH TROCKENMAHLTECHNIK GMBH
Filing Date
2025-12-05
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In the existing technology, the spherical screener has poor temperature control during the spheroidization process, resulting in inconsistent product quality. In particular, the cooling effect is insufficient during large-scale processing, which affects processing efficiency and product quality.

Method used

A free coolant is mixed with graphite material in the processing chamber of a spherical screen, and rapid cooling is achieved by absorbing energy through evaporation. Combined with temperature sensors and control devices, precise control of the processing chamber temperature is realized.

Benefits of technology

It improves processing efficiency and product quality consistency, allows for larger batch processing without causing excessive temperature, and enhances cooling efficiency and process control capabilities.

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Abstract

A device for rounding graphite material by impact, comprising a treatment chamber, a charging device for supplying graphite material to the treatment chamber, and a plurality of rounding tools, which are preferably arranged on the periphery of a rotor rotating around an axis of rotation and in a direction of rotation, which rotor is preferably in the form of a disc, which rotor is located in the treatment chamber, wherein the rounding tools are designed in such a way that they can act on graphite particles during operation in such a way that they are rounded by folding, and a separating device for separating fines and ultrafines, and a product outlet, wherein the treatment chamber is equipped with a coolant charging device via which a free cooling medium can be introduced into the treatment chamber, wherein the device preferably further comprises a control device for the temperature of the treatment chamber.
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Citation Information

Patent Citations

  • METHOD FOR INCREASING THE YIELD OF ROUNDED GRAPHITE PARTICLES

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