The Raymond Mill (Raymond Roller Mill) is a widely used grinding equipment in India for processing non-metallic minerals with Mohs hardness below 7 and humidity under 6%. Here’s its working principle:
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1. Feeding & Crushing
– Raw materials are fed into the grinding chamber through a feeder.
– A jaw crusher or hammer crusher may pre-crush large materials before they enter the mill.
2. Grinding Process
– The material is lifted by a blower and sent to the grinding roller and ring.
– The grinding rollers (usually 3–5) rotate under centrifugal force, pressing against the grinding ring to crush and grind the material.
3. Classification & Collection
– Ground powder is carried upward by airflow into a classifier.
– The classifier separates fine particles (which pass through) from coarse ones (which return for regrinding).
– Fine powder is collected by a cyclone separator or bag filter, while oversized particles are recycled.
4. Final Output
– The processed fine powder is discharged as the final product, with adjustable fineness (80–600 mesh) via the classifier speed.
Key Components in Raymond Mill (India Market)
– Grinding rollers & rings
– Classifier (for particle size control)
– Blower & cyclone separator
– Reducer & motor
Applications in India
Used for grinding:
✔ Limestone ✔ Dolomite ✔ Barite ✔ Calcite ✔ Talc ✔ Gypsum
This principle ensures efficient, low-energy consumption milling, making Raymond mills popular in Indian cement, mining, and chemical industries.
Would you like details on maintenance or suppliers in India?
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