Apparatus for screening a suspension of fibrous cellulose pulp

Details Apparatus for screening a suspension of fibrous cellulose pulp Apparatus for screening a suspension of fibrous cellulose pulp

D - Textiles, Paper

21

D

209/102

D21D 5/06 (2006.01) D21D 5/02 (2006.01)

Patent

CA 1330205

AN APPARATUS FOR SCREENING A SUSPENSION OF FIBROUS CELLULOSE PULP ABSTRACT OF THE DISCLOSURE An apparatus for screening a suspension of fibrous cellulose pulp comprising a housing and a rotor shaft, said housing having an inlet for said suspension and containing first and second screen- ing sections, each comprising a rotor member mounted on the rotor shaft and a cylindrical screen cooperating therewith and defining an outer accept chamber and an inner screening chamber, the first screening section including an inlet chamber communicating with the screening chamber of the first screening section, and an outlet chamber communicating with the screening chamber of the first screening section, for discharging a first reject, and the second screening section including an outlet chamber communicating with the screening chamber of the second screening section, for discharging a second reject from the apparatus, and the accept chamber of the second screening section having an outlet for dis- charging screened fiber suspension. The outlet chamber of the first screening section includes an outlet disposed for discharg- ing the first reject from the apparatus, and the accept chamber of the first screening section is in open communication with the screening chamber of the second screening section via an interior connection for conveying the fiber suspension screened in the form of an accept in the first screening section to the second screen- ing section to be re-screened, the outlet from the accept chamber being disposed for discharging repeatedly screened fiber suspen- sion in the form of a final accept.

601310

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