| 摘要 |
<p>APPLICANT: N. A. LENNART WIKDAHL TITLE: METHOD FOR DEWATERING A FIBER SUSPENSION IN A DEWATERING APPARATUS A method for dewatering a fiber suspension in a dewatering apparatus, working under pressure, includes an inlet for fiber suspension, an outlet for dewatered fiber-rich fraction and an outlet for substantially fiberfree fraction, a supply conduit and discharge conduits being connected to each said inlet and outlet. The suspension intended for dewatering is partially taken through a branch conduit past the dewatering apparatus and to the discharge conduit for fiberrich fraction, and partially through the dewatering apparatus. The pressure to the dewatering apparatus is regulated by means of a valve in the branch conduit. The pressure is sensed by a pressure sensor in the supply conduit and is determined by an accept counter-pressure disposed upstreams.</p> |
