Cutting and grinding machine, powder pulverizer for talc processing

Release time:

2026-08-21 09:02

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Talc exhibits a typical flaky structure and relatively low hardness, so its fine‑scale processing cannot be handled in the same way as brittle minerals such as quartz. In a shear‑grinding mill, the primary mechanisms acting on talc involve sliding, friction, and shearing between particles and between the grinding media; by contrast, if a powder‑mill delivers excessively strong impacts, it may lead to excessive disruption of the flaky morphology. Therefore, prior to processing, it is essential to clarify the intended application: does the goal involve reducing particle size and breaking up agglomerates, or preserving the flaky shape and aspect ratio as much as possible? Different objectives call for markedly different media sizes, peripheral speeds, and residence times.

When using a cell mill for the wet fine grinding of talc, the intensity of mechanical action can be adjusted by modifying the ceramic‑ball size distribution and the stirring speed. As the fineness of the talc increases, the slurry viscosity may also rise significantly, necessitating close monitoring of circulation flow rates and power consumption. An optimized talc fine‑grinding process should evaluate particle size, particle morphology, whiteness, dispersibility, and specific energy consumption per tonne of product; it should not be assessed based on any single parameter alone. “Mesh count” serves as the standard for equipment performance.

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