Pressure screen for a fiber web product process with removable cover
AssigneeValmet Technologies Oy
InventorsSteve Enzor, Bryson Hepler, Robert Short
Life of this patent
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Abstract
A pressure screen for use in a fiber web product process (10) has an inlet zone (12), a basket having an accept zone (14) and a reject zone (20). The pressure screen (10) has a housing (28) inside which a rotor (27) is located. The reject zone (20) of the pressure screen (10) has a cover (22) forming a rejects chamber (21) for the reject zone (20). The cover (22) of the rejects chamber (21) of the screen (10) is removable by a reopenable attachment means (25, 29) attached to the housing (28) of the screen (10).
Claims19
A screen comprising:
- an inlet zone, a basket and accept zone and a reject zone, which screen further comprises a housing, inside which a rotor is located, wherein the reject zone of the screen comprises a cover forming a rejects chamber for the reject zone and wherein the cover of the rejects chamber of the screen is removable by a reopenable attachment means attached to the housing of the screen, wherein the cover is of cast material, and having an inwardly facing concavity facing towards the accept zone, and wherein the cover has a mounting flange extending therefrom.
A screen comprising:
- an inlet zone, a basket and accept zone and a reject zone, which screen further comprises a housing, inside which a rotor is located, wherein the reject zone of the screen comprises a cover forming a rejects chamber for the reject zone and wherein the cover of the rejects chamber of the screen is removable by a reopenable attachment means attached to the housing of the screen, wherein the rejects chamber of the screen further comprises at least one hydrodynamic anti-wear vane.
A pressure screen for use in a fiber web product process, the pressure screen comprising:
- a housing;
- a motor having a shaft which extends into the housing and supports a rotor within the housing for rotatable motion;
- a basket mounted to the shaft within the housing, having portions defining an accept zone;
- an inlet zone defined at a front of the housing;
- and
- a cover mounted to the housing and having portions which define a reject zone in communication with the accept zone, wherein the cover has portions defining a rejects chamber in the reject zone, and wherein a first rejects outlet receives material from the rejects chamber for the passage of light a first rejects out of the screen and wherein the cover is removably fastened to the housing.
Dependencies are inferred from the claim text.