公开(公告)号：US4046621A

公开(公告)日：1977-09-06

申请号：US625819

申请日：1975-10-28

Applicant: Ernest Arthur Sexton

Inventor： Ernest Arthur Sexton

IPC: B01D11/00 ,  B01D33/04 ,  D21C9/06 ,  D21F1/80 ,  D21C9/18

CPC classification number: D21F1/80 ,  B01D33/04 ,  D21C9/06 ,  B01D2011/002 ,  B01D2201/204

Abstract: A slurry of cellulosic material is diluted to a flowable consistency and subjected to a pressure differential on a permeable surface to increase the slurry consistency to a value between the consistency of the diluted slurry and the consistency of the slurry prior to dilution thereby forming a mat of cellulosic material on the permeable surface. The liquid and solids which pass through the permeable surface as a result of the pressure differential are recycled for use as slurry diluent, and to the mat of cellulosic material, while the mat remains on the permeable surface and subject to the pressure differential, is countercurrently applied, in a plurality of treatment stages, a treating liquid, such as a wash liquid, including application of a fresh treating liquid to said mat in the last stage of said treatment stages, whereby the treating liquid displaces at least a portion of liquid present in said mat from said mat and through the permeable surface in each treatment stage. The electrical conductivity of the liquid displaced from said mat in the last stage of said treatment stages is measured, and the amount of fresh treating liquid applied in the last stage of said treatment stages is adjusted in response to the deviation, from a predetermined norm, of the measured value of electrical conductivity of only the liquid displaced in the last stage of said treatment stages.

公开(公告)号：US4014736A

公开(公告)日：1977-03-29

申请号：US533692

申请日：1974-12-17

Applicant: Ernest Arthur Sexton

Inventor： Ernest Arthur Sexton

IPC: D21C9/02 ,  B01D11/00 ,  B01D33/04 ,  D21C9/06 ,  D21C9/18 ,  D21F1/80

CPC classification number: D21F1/80 ,  B01D33/04 ,  D21C9/06 ,  B01D2011/002 ,  B01D2201/204

Abstract: A slurry of cellulosic material is diluted to a flowable consistency and subjected to a pressure differential on a permeable surface to increase the slurry consistency to a value between the consistency of the diluted slurry and the consistency of th slurry prior to dilution thereby forming a mat of cellulosic material on the permeable surface. The liquid and solids which pass through the permeable surface as a result of the pressure differential are recycled for use as slurry diluent, and to the mat of cellulosic material is applied a treating liquid, such as a washing liquid.

Abstract translation: 将纤维素材料的浆料稀释至可流动的稠度，并在可渗透表面上进行压差，以将浆料稠度提高到稀释浆料的稠度与稀释浆料的稠度之间的值，从而形成垫 可渗透表面上的纤维素材料。 作为压力差的结果，通过可渗透表面的液体和固体被再循环用作浆料稀释剂，并且对纤维素材料的垫施加处理液体，例如洗涤液体。