Roller mill with a scraper
AssigneeBuhler AG
InventorsDaniel Mark, Daniel Rickenbach, Philippe Holenstein
Life of this patent
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Abstract
A roller mill (1) including a housing (2) having a milling-material inlet (3), at least one milling-material outlet (4), and at least two cambered rollers (5, 5′) which are each arranged in the housing (2) so as to be rotatable about a roller axis (6). At least one roller (5) is assigned a scraper (7). The scraper (7) has a blade (8) for scraping milling material from a roller surface (9) with a scraper edge (10) which extends over an entire length (L) of the blade (8), and comprises a holder (11) with a receiving region (12). The holder is arranged in the housing (2) so as to be tiltable about an axis (13) parallel to the roller axis. An elastic bearing (14) is arranged between the blade (8) and the receiving region (12).
Claims15
A roller mill (1) comprising:
- a housing (2) having a milling-material inlet (3),
- at least one milling-material outlet (4), and at least two cambered rollers (5, 5′) which are each arranged in the housing (2) so as to be rotatable about a roller axis (6),
- wherein at least one roller (5) is assigned a scraper (7), and the scraper (7):
- has a blade (8) for scraping milling material from a roller surface (9) with a scraper edge (10) which extends over an entire length (L) of the blade (8), and
- comprises a holder (11) with a receiving region (12), the holder is arranged in the housing (2) so as to be tiltable about an axis (13) parallel to the roller axis,
- an elastic bearing (14) is arranged between the blade (8) and the receiving region (12), and
- wherein the receiving region (12) has the form of a groove (15), and the elastic bearing (14) is arranged at least between a groove wall (16) and the blade (8);
- wherein the blade (8) is arranged in such a way that the scraper edge (10) is parallel to the roller axis (6) when the blade (8) does not contact the roller surface.
Dependencies are inferred from the claim text.