Gebr. Pfeiffer MVR Roller Mills working principle

Описание: Gebr. Pfeiffer MVR Roller Mills

In the cement industry, MVR roller mills are used for grinding cement raw material, cement clinker, granulated blast-furnace slag, and pozzolana.
Such bulk materials differ considerably in terms of grindability and abrasiveness. The capacities of cement production lines vary within wide limits to suit individual requirements.
Due to its design, the MVR roller mill is specially suited for high and very high througput rates.

The working principle

Up to six stationary grinding rollers roll on a rotating grinding track. Drawn in between the rollers and track, the feed material is ground by pressure and shear.
The compression forces required for comminution are produced by a control arm and pivot bearing along with a hydropneumatic tension system.
The ground material is conveyed by centrifugal forces towards the stationary nozzle ring.
Gases (air or hot gas) flowing up through the nozzle ring carry the ground and dried material to the classifier where it is separated into grits and fines by the rotor. The grits fall back into the center of the grinding area.
The finished product leaves the classifier with the gas flow for separation in the downstream cyclones or filter. More detail at: http://www.gebr-pfeiffer.com/en/about...
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