초록 ▼

An apparatus for screening a suspension of fibrous cellulose pulp comprising a housing and a rotor shaft, the housing having an inlet for the suspension and containing first and second screening sections, each comprising a rotor member mounted on the rotor shaft and a cylindrical screen cooperating

An apparatus for screening a suspension of fibrous cellulose pulp comprising a housing and a rotor shaft, the housing having an inlet for the suspension and containing first and second screening 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 discharging screened fiber suspension. The outlet chamber of the first screening section includes an outlet disposed for discharging 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 screening section to be re-screened, the outlet from the accept chamber being disposed for discharging repeatedly screened fiber suspension in the form of a final accept.

대표청구항 ▼

An apparatus for screening a suspension of fibrous cellulose pulp, comprising: an elongate housing and a rotor shaft, defining an axis of rotation, extending therethrough; said housing having an inlet for said suspension and containing at least first and second screening sections; each screening sec

An apparatus for screening a suspension of fibrous cellulose pulp, comprising: an elongate housing and a rotor shaft, defining an axis of rotation, extending therethrough; said housing having an inlet for said suspension and containing at least first and second screening sections; each screening section comprising a rotor member mounted on the rotor shaft and a cylindrical screening means 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; 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 discharging screened fiber suspension; the first and second screening sections disposed axially in line and spaced from each other along the axis of rotation of the rotor shaft; the outlet chamber of the first screening section including an outlet disposed for discharging the first reject from the apparatus, the accept chamber of the first screening section being in open communication with the screening chamber of the second screening section; a connecting means for conveying the fiber suspension screened in the form of an accept in the first screening section to the second screening section to be re-screened; and the outlet from the accept chamber of the second screening section being disposed for discharging repeatedly screened fiber suspension in the form of a final accept.