EP0284616A1 - Material processing system - Google Patents
Material processing systemInfo
- Publication number
- EP0284616A1 EP0284616A1 EP87906045A EP87906045A EP0284616A1 EP 0284616 A1 EP0284616 A1 EP 0284616A1 EP 87906045 A EP87906045 A EP 87906045A EP 87906045 A EP87906045 A EP 87906045A EP 0284616 A1 EP0284616 A1 EP 0284616A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- washing
- treatment
- strips
- liquid
- bands
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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
- B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
- B01D33/042—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering whereby the filtration and squeezing-out take place between at least two filtering bands
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
- Structure Of Belt Conveyors (AREA)
Abstract
Une installation pour le traitement d'un matériau guidé entre au moins deux bandes sans fin perméables, par ex. des bandes tamisage, ou des dispositifs similaires de transport, est destinée notament au lavage par refoulement d'un gâteau de filtre-presse ou au lavage de matières fibreuses. Le matériau est guidé entre les bandes de façon à passer devant un récipient d'alimentation ou d'évacuation d'un milieu de traitement, par exemple un liquide de lavage. Il s'agit surtout de réaliser des économies d'énergie et d'espace lors du lavage de gâteaux de filtre-presse ou simlaires, de réduire les coûts de production de ces systèmes de traitement, par exemple un liquide de lavage. Il s'agit surtout de réaliser des économies d'énergie et d'espace lors du lavage de gâteaux de filtre-presse ou similaires, de réduire les coûts de production de ces systèmes de traitement et d'obtenir un meilleur lavage. A cet effet, surtout dans le cas d'un traitement à contre-courant par gravité, avantageusement un lavage par refoulement par gravité, les récipients de traitement sont agencés l'un sur l'autre, en particulier perpendiculairement l'un à l'autre, et les bandes transportant entre elles le matériau montent autour des récipients de traitement ou entre eux, formant des boucles, des lacets ou des ondulations. Le matériau et les bandes passent d'abord par le récipient inférieur, et le liquide de traitement, par exemple de l'eau pure, est fourni premièrement au récipient supérieur, utilement sous pression. Les récipients comprennent sur leur côté faisant face au côté supérieur des bandes ou du matériau, surtout sur leur côté inférieur, des ouvertures par lesquelles le liquide de traitement est fourni aux bandes ou au matériau ou transmis à d'autres récipients de traitement situés en-dessous.An installation for processing guided material between at least two permeable endless bands, e.g. sieving bands, or similar transport devices, is intended in particular for washing by discharge of a filter press cake or for washing fibrous materials. The material is guided between the strips so as to pass in front of a container for feeding or discharging a treatment medium, for example a washing liquid. It is above all a question of saving energy and space when washing filter-press cakes or the like, of reducing the production costs of these treatment systems, for example a washing liquid. The main aim is to save energy and space when washing filter press cakes or the like, to reduce the production costs of these treatment systems and to obtain better washing. To this end, especially in the case of a counter-current treatment by gravity, advantageously a washing by gravity backflow, the treatment vessels are arranged one on the other, in particular perpendicular to one another. other, and the bands carrying the material between them rise around the treatment vessels or between them, forming loops, laces or undulations. The material and the strips pass first through the lower container, and the treatment liquid, for example pure water, is supplied first to the upper container, usefully under pressure. The containers include on their side facing the upper side of the strips or material, especially on their lower side, openings through which the processing liquid is supplied to the strips or the material or transmitted to other processing containers located below.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0248986A AT388192B (en) | 1986-09-17 | 1986-09-17 | DEVICE FOR TREATING A MATERIAL, ESPECIALLY A MATERIAL OR FABRIC RAIL |
AT2489/86 | 1986-09-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0284616A1 true EP0284616A1 (en) | 1988-10-05 |
Family
ID=3535210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87906045A Withdrawn EP0284616A1 (en) | 1986-09-17 | 1987-09-16 | Material processing system |
Country Status (6)
Country | Link |
---|---|
US (1) | US4938038A (en) |
EP (1) | EP0284616A1 (en) |
JP (1) | JPH01500841A (en) |
AT (1) | AT388192B (en) |
FI (1) | FI882281A (en) |
WO (1) | WO1988002046A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4024175A1 (en) * | 1990-06-06 | 1992-02-27 | Bernt U Treu | METHOD AND DEVICE FOR WASHING PULP |
DE4018120A1 (en) * | 1990-06-06 | 1991-12-12 | Bernt U Treu | Cellulose washing |
US5168731A (en) * | 1991-04-15 | 1992-12-08 | Laura M. A. Vidalis | Continuous foam dyeing apparatus and method |
AU3497695A (en) * | 1994-08-31 | 1996-03-22 | Hoffman Environmental Systems, Inc. | Thin mat washing of cellulosic pulp |
US6228215B1 (en) * | 1998-04-06 | 2001-05-08 | Hoffman Enviornmental Systems, Inc. | Method for countercurrent treatment of slurries |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1794039A (en) * | 1926-12-14 | 1931-02-24 | Silvano Emilio | Device for washing material |
CH149438A (en) * | 1930-01-21 | 1931-09-15 | Heinrich Nicolaus & Co G M B H | Method and device for washing out paper webs treated with parchment liquid. |
DE1964950A1 (en) * | 1969-12-24 | 1971-07-15 | Voith Gmbh J M | Belt filter for removing water from water - treatment plant sludge |
DE2425374A1 (en) * | 1974-05-25 | 1975-12-04 | Artos Meier Windhorst Kg | METHOD AND DEVICE FOR WET TREATMENT, IN PARTICULAR FOR WASHING MOVING ROLLS OF PRODUCTS |
DE2518770A1 (en) * | 1975-04-28 | 1976-11-11 | Vepa Ag | Textile washing machine with cascaded washing troughs - each having web guide rollers for passing web in contra-flow to washing lye |
US4246669A (en) * | 1978-10-16 | 1981-01-27 | Envirotech Corporation | Dual belt pulp washer |
US4151093A (en) * | 1978-03-24 | 1979-04-24 | Lenox Institute For Research | Stockwasher |
DE3010260A1 (en) * | 1980-03-17 | 1981-09-24 | Bayer Ag, 5090 Leverkusen | Machine for wet-treatment of slivers - enclosed between porous endless belts to prevent roller-lap formation |
SE8505124L (en) * | 1984-11-07 | 1986-05-08 | Green Bay Packaging Inc | SET AND DEVICE FOR TREATING A SLIDE |
SE446107B (en) * | 1984-12-19 | 1986-08-11 | Kmw Ab | PROCEDURE FOR CONTINUOUS TREATMENT OF FIBER MASS WITH TREATING FLUID, AND DEVICE FOR IMPLEMENTATION OF THE PROCEDURE |
-
1986
- 1986-09-17 AT AT0248986A patent/AT388192B/en not_active IP Right Cessation
-
1987
- 1987-09-16 JP JP62505526A patent/JPH01500841A/en active Granted
- 1987-09-16 US US07/199,238 patent/US4938038A/en not_active Expired - Fee Related
- 1987-09-16 WO PCT/AT1987/000054 patent/WO1988002046A1/en not_active Application Discontinuation
- 1987-09-16 EP EP87906045A patent/EP0284616A1/en not_active Withdrawn
-
1988
- 1988-05-16 FI FI882281A patent/FI882281A/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO8802046A1 * |
Also Published As
Publication number | Publication date |
---|---|
FI882281A0 (en) | 1988-05-16 |
US4938038A (en) | 1990-07-03 |
FI882281A (en) | 1988-05-16 |
JPH0343392B2 (en) | 1991-07-02 |
ATA248986A (en) | 1988-10-15 |
WO1988002046A1 (en) | 1988-03-24 |
AT388192B (en) | 1989-05-10 |
JPH01500841A (en) | 1989-03-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19880507 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT SE |
|
17Q | First examination report despatched |
Effective date: 19910115 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19910920 |
|
R18W | Application withdrawn (corrected) |
Effective date: 19910920 |