Roller press with annular disc

Details Roller press with annular disc Roller press with annular disc

2008-07-21

2011-11-29

Miller, Bena (Department: 3725)

Solid material comminution or disintegration

Apparatus

Comminuting elements

C241S295000

Reexamination Certificate

active

08066215

ABSTRACT:
A roller press (1) is described for grinding particulate material such as cement raw materials, cement clinker and similar materials, the roller press having two oppositely rotating rollers (2, 3) with one roller being movably supported relative to the other roller and with the rollers (2, 3) forming between them a roller gap (4). A co-rotating annular disc is attached to one of the rollers (2), which subject to actuation by a number of springs (7), is movable in the direction of the roller axis and which, in the area around the roller gap (4,) extends over the end surface (3a) of the other roller. The annular disc is divided into a number of ring sectors (5) over its circumference, each individually biased by springs towards the end surface (3a) of the other roller (3). Hence, it is possible to maintain the grinding bed thickness at the ends of the rollers, thereby attaining a uniform pressure distribution across the rollers, as well as uniform grinding efficiency and uniform wear on the rollers.

REFERENCES:
patent: 4854508 (1989-08-01), Dicky
patent: 6389862 (2002-05-01), Kusters

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