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1. CN103987892 - Device for preventing rewetting of cellulose pulp

Office
China
Application Number 201280050223.8
Application Date 11.10.2012
Publication Number 103987892
Publication Date 13.08.2014
Publication Kind A
IPC
D21C 9/18
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
9After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters
18De-watering
B01D 33/067
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
33Filters with filtering elements which move during the filtering operation
06with rotary cylindrical filtering surfaces, e.g. hollow drums
067Construction of the filtering drums, e.g. mounting or sealing arrangements
B30B 9/20
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR
9Presses specially adapted for particular purposes
02for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
20using rotary pressing members, other than worms or screws, e.g. rollers, rings, discs
D21C 9/06
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
9After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters
02Washing
06in filters
D21D 1/40
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
DTREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
1Methods of beating or refining; Beaters of the Hollander type
20Methods of refining
40Washing the fibres
CPC
D21C 9/06
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
9After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
02Washing ; ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
06in filters ; ; Washing of concentrated pulp, e.g. pulp mats, on filtering surfaces
D21C 9/18
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
9After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
18De-watering
D21D 1/40
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
DTREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
1Methods of beating or refining; Beaters of the Hollander type
20Methods of refining
40Washing the fibres
Applicants VALMET CORPORATION
Inventors LUNDBERG JOERGEN
LOEVGREN HANS
Agents mao yiming
Priority Data 1150946 12.10.2011 SE
Title
(EN) Device for preventing rewetting of cellulose pulp
(ZH) 用于防止纤维素纸浆再湿润的装置
Abstract
(EN) A device (10) is provided for preventing rewetting in a pulp washer (100), with two press rolls (2), arranged to rotate in opposite directions and having permeable outer surfaces (4), inside of which filtrate channels (6) are arranged. The device (10) comprises an anti-rewet beam (12), the cross-section of which forms a closed shape. The anti-rewet beam in turn comprises a filtrate barrier (12a) positioned towards the outer wall (6a) of the filtrate channel to prevent flow of liquid from the trailing part of the filtrate channel to the outer surface of the press roll, a support member (12b) positioned towards the rear side wall (6d) of the filtrate channel, and at least one intermediate beam portion (12c, 12c'), interconnecting the filtrate barrier and the support member, to form the closed beam shape.
(ZH)

提供一种洗浆机(100)内的防再湿润装置(10),洗浆机具有两个压榨辊(2),两个压榨辊(2)布置成沿相反方向转动并具有可渗透外表面(4),且内部布置有滤液通道(6)。该装置(10)包括防再湿润梁(12),其横截面形成封闭形状。该防再湿润梁又包括:滤液挡板(12a),该滤液挡板朝向滤液通道的外壁(6a)定位以防止液体从滤液通道的尾部流到压榨辊的外表面;支承件(12b),该支承件朝向滤液通道的后侧壁(6d)定位;以及至少一个中间梁部分(12c,12c’),该中间梁部分将滤液挡板与支承件互连,从而形成封闭梁形状。


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