|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||162/55 ; 162/58 ; 209/240 ; 209/234|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 45 인용 특허 : 17|
A method for screening fibrous stock slurry having a rotor impeller and a screen, in which accepts quality and throughput may be adjusted without stopping the screening process by relative displacement of the clearance between the rotor and the screen plate. In one version, this relative displacement is accomplished by axial displacement of frusto-conical portions of the bladed rotor and screen. The relative axial displacement changes the degree of pulp disturbance in a primary screening zone, thus causing throughput and accepts quality to change accordi...
A method for controlling the quality and throughput of an accepts portion of a pulp slurry without stopping a rotor-operated screen used to produce the accepts portion, the method comprising the steps of: (a) continuously introducing a pulp slurry into a primary screening zone between a rotor impeller and a screen having a clearance therebetween; (b) operating the rotor to generate regions of disturbance in the pulp slurry within the primary screening zone, so that a portion of the slurry passes through apertures in the screen, thereby becoming the accep...