SE9401514D0 - Treatment of fiber material - Google Patents
Treatment of fiber materialInfo
- Publication number
- SE9401514D0 SE9401514D0 SE9401514A SE9401514A SE9401514D0 SE 9401514 D0 SE9401514 D0 SE 9401514D0 SE 9401514 A SE9401514 A SE 9401514A SE 9401514 A SE9401514 A SE 9401514A SE 9401514 D0 SE9401514 D0 SE 9401514D0
- Authority
- SE
- Sweden
- Prior art keywords
- treatment agent
- layer
- pulp
- space
- thickening
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-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
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
- D21C9/06—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents in filters ; Washing of concentrated pulp, e.g. pulp mats, on filtering surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/60—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for washing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
- B01D33/64—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression
- B01D33/644—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression by pressure plates, membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
- B01D33/76—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
- B01D33/64—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression
- B01D33/646—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression by pressure rollers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
A method and an apparatus for treating pulp with a treatment agent for simultaneous displacement and thickening, in which the pulp is fed into a space (6) in order to form a layer on the perforated casing (5) of a rotating drum (3). According to the invention, the treatment agent is also fed into the space (6) in order to form a continuous layer (22) of treatment agent up against the mobile pulp layer (20). The displacement and thickening are carried out continuously at a mechanical pressure on the pulp layer (20) which is less than 100 kPa, and for the most part using the treatment agent. The quantity of liquid which is displaced through the casing (5) per unit of time exceeds the quantity of treatment agent which is supplied. A distribution channel for the treatment agent is designed and arranged in association with the space (6) in such a way that the layer of treatment agent is formed and maintained in free contact with the pulp layer.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9401514A SE502815C2 (en) | 1994-05-03 | 1994-05-03 | Method and apparatus for treating a liquid fibrous material |
AU24580/95A AU2458095A (en) | 1994-05-03 | 1995-04-21 | Method of treating a liquid-containing fibre material and apparatus for carrying out the method |
PCT/SE1995/000432 WO1995030046A1 (en) | 1994-05-03 | 1995-04-21 | Method of treating a liquid-containing fibre material and apparatus for carrying out the method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9401514A SE502815C2 (en) | 1994-05-03 | 1994-05-03 | Method and apparatus for treating a liquid fibrous material |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9401514D0 true SE9401514D0 (en) | 1994-05-03 |
SE9401514L SE9401514L (en) | 1995-11-04 |
SE502815C2 SE502815C2 (en) | 1996-01-22 |
Family
ID=20393868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9401514A SE502815C2 (en) | 1994-05-03 | 1994-05-03 | Method and apparatus for treating a liquid fibrous material |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2458095A (en) |
SE (1) | SE502815C2 (en) |
WO (1) | WO1995030046A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19753604C2 (en) * | 1997-12-03 | 1999-12-16 | Voith Sulzer Stoffaufbereitung | Process for dewatering a fiber suspension |
CN110559728A (en) * | 2019-08-27 | 2019-12-13 | 首创爱华(天津)市政环境工程有限公司 | Micro-flocculation technology for fiber rotary disc filter |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE454187B (en) * | 1985-10-31 | 1988-04-11 | Kamyr Ab | FIBER MATERIAL TREATMENT APPLIANCE |
US4827741A (en) * | 1988-03-21 | 1989-05-09 | Ingersoll-Rand Company | Pulp washer discharging a pulp slurry at a controlled consistency |
US5046338A (en) * | 1990-06-13 | 1991-09-10 | Ingersoll-Rand Company | Multiphase pulp washer |
-
1994
- 1994-05-03 SE SE9401514A patent/SE502815C2/en unknown
-
1995
- 1995-04-21 WO PCT/SE1995/000432 patent/WO1995030046A1/en active Application Filing
- 1995-04-21 AU AU24580/95A patent/AU2458095A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
SE502815C2 (en) | 1996-01-22 |
SE9401514L (en) | 1995-11-04 |
AU2458095A (en) | 1995-11-29 |
WO1995030046A1 (en) | 1995-11-09 |
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