US20100252214A1 - Method and a Device for the Dewatering of a Fibre Suspension Supplied by a Nozzle Assembly - Google Patents
Method and a Device for the Dewatering of a Fibre Suspension Supplied by a Nozzle Assembly Download PDFInfo
- Publication number
- US20100252214A1 US20100252214A1 US12/678,053 US67805308A US2010252214A1 US 20100252214 A1 US20100252214 A1 US 20100252214A1 US 67805308 A US67805308 A US 67805308A US 2010252214 A1 US2010252214 A1 US 2010252214A1
- Authority
- US
- United States
- Prior art keywords
- container
- nozzle assembly
- suspension
- vertically orientated
- elongate
- 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.)
- Abandoned
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 38
- 239000000835 fiber Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims description 11
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000012216 screening Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000006194 liquid suspension Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/117—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6438—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element nozzles
- B01D29/6446—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element nozzles with a rotary movement with respect to the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6438—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element nozzles
- B01D29/6453—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element nozzles with a translational movement with respect to the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
-
- 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
- B01D33/72—Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/22—Directing the mixture to be filtered on to the filters in a manner to clean the filters
-
- 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
- D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
- D21D5/023—Stationary screen-drums
Definitions
- the invention relates to a method and a device for the dewatering of a fiber suspension.
- a fiber suspension may, for instance, be the liquid suspension removed from a stock, which contains a residual amount of fibers. It may be desirable to, from the suspension, separate at least a part of the particles/fibers, in order to be able to use the same in a useful way. Furthermore, it is necessary or favorable to, from the suspension, remove as great a part of the particles/fibers as possible before the liquid part thereof (water) is brought back to the environment.
- an object of the invention is to provide a technique by which separation of fibers from a fiber suspension can be carried out in a simple and efficient manner.
- the invention comprises essentially that the screening material is formed to a vertically orientated elongate container, that the suspension is introduced into the container via a vertical elongate nozzle assembly, which in all essentials is concentrically arranged in the container, and that the nozzle assembly is arranged to spray the suspension via a plurality of nozzles spaced-apart around the assembly against the inside of the shell wall of the container.
- the nozzle assembly is displaced in relation to the container in the axial direction thereof.
- the nozzle assembly which preferably carries two or more groups of nozzles spaced-apart along the assembly, which are distributed around the circumference of the assembly, can furthermore be rotated in relation to the substantially vertical axis of the container.
- the bottom part of the container may be provided with a valve device or lock device, through which a fiber fraction accumulated in the bottom part of the container can be withdrawn.
- a liquid level sensor is arranged to detect the liquid level in the container and is arranged to control the flow of suspension supplied to the container in such a manner that the liquid level of the container lies under the nozzle assembly.
- the container may be received in a surrounding housing, which catches liquid separated from the suspension and leads the same away.
- FIG. 1 is a schematic view which shows an axial sectioned through the device according to the invention.
- FIG. 2 is a schematic view which shows a section taken along line II-II in FIG. 1 .
- FIG. 1 an elongate vertically orientated tubular container 1 of wire cloth material is schematically shown, which in the upper end thereof is carried by a structure not closer shown.
- a nozzle assembly 2 is shown comprising a generally vertically directed pipe 3 , which connects to a plurality of groups 4 of nozzles 5 , the nozzles 5 being arranged to spray suspension introduced via the pipe 3 radially outward toward the inside of the container 1 . From FIG. 2 it can be seen that the nozzles of the respective group 4 are distributed around the circumference of the assembly 2 .
- the assembly 2 is in all essentials concentric with the container 1 and is arranged manageable around the axis thereof and of the container 1 by means of a schematically shown driving engine 7 .
- a suspension is supplied to the pipe 3 by elevated pressure, for instance via a swivel connection 8 .
- a valve device 10 At the lower end part of the container 1 , at a distance under the nozzle assembly 2 , there is a valve device 10 .
- the lower end of the container connects to a pipe 11 having a valve device 10 .
- the valve device 10 may, for instance, consist of two slide valves 15 spaced-apart along the pipe 11 , which can be arranged to form a lock in the pipe 11 leaning downward from the container.
- the valve device 10 is driven in order to enable feeding out of a fiber suspension of elevated fiber content, from the lower part of the container 1 or the upper part of the pipe 11 .
- This fraction may, for instance, under the impact of gravity be fed out via the valve device of the pipe 11 to a collecting container 14 and may from there be fed out onto a conveyor belt 12 , which, for instance, may consist of wire cloth or the like in order to mechanically be dewatered in contact with a clamping device 13 lying above, for instance, in the form of an endless press band of screen cloth, which via, for instance, squeezing rollers is pressed against the fiber material on the conveyor belt 12 .
- a conveyor belt 12 which, for instance, may consist of wire cloth or the like in order to mechanically be dewatered in contact with a clamping device 13 lying above, for instance, in the form of an endless press band of screen cloth, which via, for instance, squeezing rollers is pressed against the fiber material on the conveyor belt 12 .
- the container 1 is surrounded by a housing 9 , the walls of which are lying at a radial distance outside the container 1 and has a bottom outlet 91 . Suspension liquid leaving through the wall of the container 1 is collected in the housing 9 and is led away via the drainage 91 thereof.
- the engine 7 is advantageously arranged to impart the nozzle assembly 2 , in addition to a rotary motion, an axial reciprocating motion, so that the suspension spray which is leaving the respective nozzle 5 also can carry out a scraping function in respect of fibers tending to deposit on the inside of the container 1 , so that deposited fibers move downward toward the bottom of the container.
- the suspension flow to the container is adapted so that the container in all essentials is not flowed by the suspension, i.e., so that the suspension jets freely pass between nozzle and container wall.
- the jets are given such high speed that a substantial share of the liquid of the suspension leaves through the wire cloth, while the fibers to a substantial share are retained in the container.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Treatment Of Fiber Materials (AREA)
- Paper (AREA)
Abstract
A vertically elongate and oriented container (1) of wire cloth material contains a vertically oriented nozzle assembly (2), which sprays a fiber suspension against the inner wall of the container. The nozzle assembly is revolved around the axis of the container and is displaced backwards and forwards vertically so that the suspension sprays, which in the direction radially outward widen against the shell wall of the container (1) afford a cleaning effect in respect of deposited fibers on the inner wall of the container (1) at the same time as the liquid of the suspension efficiently is separated through the container wall in order to then be collected in a housing (9) surrounding the container (1).
Description
- This application is a U.S. national stage application of International App. No. PCT/SE2008/000510, filed Sep. 12, 2008, the disclosure of which is incorporated by reference herein, and claims priority on Swedish Application No. 0702091-0, filed Sep. 17, 2007, the disclosure of which is incorporated by reference herein.
- Not applicable.
- The invention relates to a method and a device for the dewatering of a fiber suspension.
- A fiber suspension may, for instance, be the liquid suspension removed from a stock, which contains a residual amount of fibers. It may be desirable to, from the suspension, separate at least a part of the particles/fibers, in order to be able to use the same in a useful way. Furthermore, it is necessary or favorable to, from the suspension, remove as great a part of the particles/fibers as possible before the liquid part thereof (water) is brought back to the environment.
- It is in that connection previously well known that it is possible to lead the suspension through a screening material through which the liquid share of the suspension passes, the fiber fraction largely being collected on the screening material and then being collected for further handling.
- A problem is to carry out such a separation in an efficient way. Therefore, an object of the invention is to provide a technique by which separation of fibers from a fiber suspension can be carried out in a simple and efficient manner.
- The invention comprises essentially that the screening material is formed to a vertically orientated elongate container, that the suspension is introduced into the container via a vertical elongate nozzle assembly, which in all essentials is concentrically arranged in the container, and that the nozzle assembly is arranged to spray the suspension via a plurality of nozzles spaced-apart around the assembly against the inside of the shell wall of the container.
- The nozzle assembly is displaced in relation to the container in the axial direction thereof. The nozzle assembly, which preferably carries two or more groups of nozzles spaced-apart along the assembly, which are distributed around the circumference of the assembly, can furthermore be rotated in relation to the substantially vertical axis of the container.
- Since the container is stationary, the bottom part of the container may be provided with a valve device or lock device, through which a fiber fraction accumulated in the bottom part of the container can be withdrawn. A liquid level sensor is arranged to detect the liquid level in the container and is arranged to control the flow of suspension supplied to the container in such a manner that the liquid level of the container lies under the nozzle assembly. The container may be received in a surrounding housing, which catches liquid separated from the suspension and leads the same away.
- The invention will in the following be described in the form of example, reference being made to the appended drawing.
-
FIG. 1 is a schematic view which shows an axial sectioned through the device according to the invention. -
FIG. 2 is a schematic view which shows a section taken along line II-II inFIG. 1 . - In
FIG. 1 , an elongate vertically orientatedtubular container 1 of wire cloth material is schematically shown, which in the upper end thereof is carried by a structure not closer shown. In the upper part of thecontainer 1, anozzle assembly 2 is shown comprising a generally vertically directedpipe 3, which connects to a plurality ofgroups 4 ofnozzles 5, thenozzles 5 being arranged to spray suspension introduced via thepipe 3 radially outward toward the inside of thecontainer 1. FromFIG. 2 it can be seen that the nozzles of therespective group 4 are distributed around the circumference of theassembly 2. Theassembly 2 is in all essentials concentric with thecontainer 1 and is arranged manageable around the axis thereof and of thecontainer 1 by means of a schematically showndriving engine 7. - A suspension is supplied to the
pipe 3 by elevated pressure, for instance via aswivel connection 8. At the lower end part of thecontainer 1, at a distance under thenozzle assembly 2, there is avalve device 10. The lower end of the container connects to apipe 11 having avalve device 10. Thevalve device 10 may, for instance, consist of twoslide valves 15 spaced-apart along thepipe 11, which can be arranged to form a lock in thepipe 11 leaning downward from the container. Thevalve device 10 is driven in order to enable feeding out of a fiber suspension of elevated fiber content, from the lower part of thecontainer 1 or the upper part of thepipe 11. This fraction may, for instance, under the impact of gravity be fed out via the valve device of thepipe 11 to acollecting container 14 and may from there be fed out onto aconveyor belt 12, which, for instance, may consist of wire cloth or the like in order to mechanically be dewatered in contact with aclamping device 13 lying above, for instance, in the form of an endless press band of screen cloth, which via, for instance, squeezing rollers is pressed against the fiber material on theconveyor belt 12. - The
container 1 is surrounded by ahousing 9, the walls of which are lying at a radial distance outside thecontainer 1 and has abottom outlet 91. Suspension liquid leaving through the wall of thecontainer 1 is collected in thehousing 9 and is led away via thedrainage 91 thereof. - The
engine 7 is advantageously arranged to impart thenozzle assembly 2, in addition to a rotary motion, an axial reciprocating motion, so that the suspension spray which is leaving therespective nozzle 5 also can carry out a scraping function in respect of fibers tending to deposit on the inside of thecontainer 1, so that deposited fibers move downward toward the bottom of the container. The suspension flow to the container is adapted so that the container in all essentials is not flowed by the suspension, i.e., so that the suspension jets freely pass between nozzle and container wall. The jets are given such high speed that a substantial share of the liquid of the suspension leaves through the wire cloth, while the fibers to a substantial share are retained in the container.
Claims (18)
1-10. (canceled)
11. A method for the dewatering of a fiber suspension, comprising the steps of:
introducing from above a fiber suspension under pressure through a nozzle assembly into an elongate tubular vertically orientated container made of a fiber separation material;
wherein the elongate tubular vertically orientated container defines a vertically orientated axis;
wherein the nozzle assembly has a plurality of nozzles spaced-apart around the axis of the container and wherein the nozzle assembly is placed centrally in the elongate tubular vertically orientated container; and
displacing the nozzle assembly in an axial direction along the axis of elongate tubular vertically orientated container.
12. The method of claim 11 wherein the nozzle assembly is displaced backwards and forwards along the axial direction of the elongate tubular vertically orientated container.
13. The method of claim 11 wherein the container is kept stationary.
14. The method of claim 11 wherein the nozzle assembly is imparted a rotary motion in relation to the container about the axis of the container.
15. The method of claim 12 wherein the nozzle assembly is imparted a rotary motion in relation to the container about the axis of the container.
16. The method of claim 13 wherein the nozzle assembly is imparted a rotary motion in relation to the container about the axis of the container.
17. The method of claim 11 , wherein the fiber suspension is sprayed through a plurality of groups of nozzles which groups of nozzles are spaced-apart in the axial direction along the nozzle assembly.
18. The method of claim 11 , wherein the fiber separation material is a wire cloth.
19. A device for the dewatering of a fiber suspension, comprising:
an elongate and vertically orientated tubular container of a liquid-permeable fiber-separating material which defines a vertical axis and an inner circumference wall;
a nozzle assembly connected to a source of pressurized fiber suspension, and placed centrally in the elongate and vertically orientated tubular container; and
wherein the nozzle assembly has a plurality of nozzles, which are arranged to direct sprays of a fiber suspension against the inside of the circumference wall of the elongate and vertically orientated tubular container.
20. The device of claim 19 , wherein the liquid-permeable fiber-separating material is a wire cloth.
21. The device of claim 19 , wherein the nozzle assembly has a plurality of groups of nozzles spaced-apart along the nozzle assembly, the nozzles of the groups being spaced-apart being circumferentially spaced on the nozzle assembly.
22. The device of claim 19 , wherein the nozzle assembly is mounted for rotation to a driving assembly so as to be driven in rotation about the vertical axis of the container.
23. The device of claim 20 , wherein the nozzle assembly is mounted for rotation to a driving assembly so as to be driven in rotation about the axis of the container.
24. The device of claim 20 , wherein the nozzle assembly is mounted to the driving assembly for reciprocal motion along the axis of the elongate and vertically orientated tubular container, and wherein said vertically orientated tubular container is stationarily mounted;
a housing spaced from and enclosing the vertically oriented tubular container and arranged to collect suspension liquid from the source of pressurized fiber suspension; and
wherein the housing has portions forming a bottom drainage arranged to lead away suspension liquid from the housing.
25. The device of claim 23 , wherein the nozzle assembly is mounted to the driving assembly for reciprocal motion along the axis of the elongate and vertically orientated tubular container, and wherein said vertically orientated tubular container is stationarily mounted, and further comprising:
a housing spaced from and enclosing the vertically oriented tubular container and arranged to collect suspension liquid from the source of pressurized fiber suspension; and
wherein the housing has portions forming a bottom drainage arranged to lead away suspension liquid from the housing.
26. The device of claim 19 , further comprising a valve device connected to a lower end part of the elongate and vertically orientated tubular container and arranged to enable selectable leading out of a suspension fraction having elevated fiber content from the lower end part of the container.
27. The device of claim 25 , further comprising a valve device connected to a lower end part of the elongate and vertically orientated tubular container and arranged to enable selectable leading out of a suspension fraction having elevated fiber content from the lower end part of the container.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0702091A SE531514C2 (en) | 2007-09-17 | 2007-09-17 | Method and apparatus for dewatering a fiber suspension supplied by a nozzle assembly |
SE0702091-0 | 2007-09-17 | ||
PCT/SE2008/000510 WO2009038516A1 (en) | 2007-09-17 | 2008-09-12 | A method and a device for the dewatering of a fibre suspension supplied by a nozzle assembly. |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100252214A1 true US20100252214A1 (en) | 2010-10-07 |
Family
ID=40468145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/678,053 Abandoned US20100252214A1 (en) | 2007-09-17 | 2008-09-12 | Method and a Device for the Dewatering of a Fibre Suspension Supplied by a Nozzle Assembly |
Country Status (6)
Country | Link |
---|---|
US (1) | US20100252214A1 (en) |
EP (1) | EP2188443A4 (en) |
CN (1) | CN101542041B (en) |
CA (1) | CA2699757A1 (en) |
SE (1) | SE531514C2 (en) |
WO (1) | WO2009038516A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013233495A (en) * | 2012-05-08 | 2013-11-21 | Sumitomo Electric Ind Ltd | Liquid filtration device, and ballast water processing device |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102091470B (en) * | 2010-11-30 | 2013-08-28 | 赵善彬 | White water filtering machine |
CN102166451A (en) * | 2011-02-21 | 2011-08-31 | 安徽省华银茶油有限公司 | Drum-type raw oil filter |
SE537357C2 (en) * | 2013-01-11 | 2015-04-14 | Valmet Oy | Apparatus for washing and / or dewatering cellulose pulp |
CN106731117A (en) * | 2017-01-23 | 2017-05-31 | 浙江腾荣环保科技有限公司 | One kind scrapes slag formula filter |
CN115501685B (en) * | 2022-10-17 | 2024-04-26 | 信和(天津)环保科技发展有限公司 | Multiple sewage filters filter core assembly |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3682444A (en) * | 1966-10-20 | 1972-08-08 | Defibrator Ab | Dewaterers for fiber pulp suspensions |
US4535497A (en) * | 1980-01-10 | 1985-08-20 | Kamyr Ab | Method for treatment of suspensions in movement |
US20100200520A1 (en) * | 2007-09-17 | 2010-08-12 | Metso Paper, Inc. | Method and a Device for the Dewatering of a Fibre Suspension in a Vertical Elongate Container Formed of Two Endless Wire Bands |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB843166A (en) * | 1958-02-15 | 1960-08-04 | Celleco Ab | Arrangement for removal of resin and/or dewatering of pulp |
WO1993006299A1 (en) * | 1991-09-26 | 1993-04-01 | Sunds Defibrator Industries Ab | An arrangement and a method for concentrating a suspension |
SE470533B (en) * | 1992-11-25 | 1994-07-25 | Sunds Defibrator Ind Ab | Concentration method and apparatus |
FI112385B (en) * | 1998-09-23 | 2003-11-28 | Andritz Oy | Method and apparatus for treating pulp |
US6622868B1 (en) * | 2002-07-12 | 2003-09-23 | Whitewater Solutions Corp. | System for recovering and recycling usable fibers from white water in a papermaking process |
CN1204315C (en) * | 2002-09-24 | 2005-06-01 | 中国科学院广州化学研究所 | Auxiliary dehydrating plant for vacuum wash hollander |
-
2007
- 2007-09-17 SE SE0702091A patent/SE531514C2/en not_active IP Right Cessation
-
2008
- 2008-09-12 EP EP08794130.8A patent/EP2188443A4/en not_active Withdrawn
- 2008-09-12 US US12/678,053 patent/US20100252214A1/en not_active Abandoned
- 2008-09-12 CN CN2008800003924A patent/CN101542041B/en not_active Expired - Fee Related
- 2008-09-12 WO PCT/SE2008/000510 patent/WO2009038516A1/en active Application Filing
- 2008-09-12 CA CA2699757A patent/CA2699757A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3682444A (en) * | 1966-10-20 | 1972-08-08 | Defibrator Ab | Dewaterers for fiber pulp suspensions |
US4535497A (en) * | 1980-01-10 | 1985-08-20 | Kamyr Ab | Method for treatment of suspensions in movement |
US20100200520A1 (en) * | 2007-09-17 | 2010-08-12 | Metso Paper, Inc. | Method and a Device for the Dewatering of a Fibre Suspension in a Vertical Elongate Container Formed of Two Endless Wire Bands |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013233495A (en) * | 2012-05-08 | 2013-11-21 | Sumitomo Electric Ind Ltd | Liquid filtration device, and ballast water processing device |
Also Published As
Publication number | Publication date |
---|---|
WO2009038516A1 (en) | 2009-03-26 |
SE531514C2 (en) | 2009-05-05 |
SE0702091L (en) | 2009-03-18 |
CN101542041B (en) | 2012-01-25 |
CA2699757A1 (en) | 2009-03-26 |
EP2188443A4 (en) | 2013-09-25 |
EP2188443A1 (en) | 2010-05-26 |
CN101542041A (en) | 2009-09-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20100252214A1 (en) | Method and a Device for the Dewatering of a Fibre Suspension Supplied by a Nozzle Assembly | |
KR101259124B1 (en) | Device for filtering sewage and waste water | |
KR101729262B1 (en) | Adulteration disposal equipment with wedge bar screen | |
US4840047A (en) | Multiscreen pressure diffuser | |
CA2470701A1 (en) | Method and apparatus for abrasive recycling and waste separation system | |
WO2016009357A1 (en) | Vertical separator for the treatment of slurry | |
CN108726591A (en) | Filter device for water process and the working method for water treatment filter | |
US6739458B2 (en) | Device for dehydrating sludge | |
CA2514142C (en) | Device for removing material to be screened from a liquid flowing in a channel | |
JP4372305B2 (en) | Device for delivering filter rods containing powdered or granular particles | |
JP3207564U (en) | Fine suspended matter removal equipment for solvent and waste water containing impurities | |
JPS584119B2 (en) | Methods for sorting waste paper | |
KR102298729B1 (en) | Contaminant dehydration pressure feeding device | |
US20100200520A1 (en) | Method and a Device for the Dewatering of a Fibre Suspension in a Vertical Elongate Container Formed of Two Endless Wire Bands | |
FI104433B (en) | Method and apparatus for separating a fiber suspension | |
WO2014014345A1 (en) | Internally fed drum filter for treating waste water comprising an inlet distribution arrangement | |
EP1017471B1 (en) | An apparatus for screening and compacting | |
CN205307953U (en) | Germanium tetrachloride hydrolysate separator | |
US6622868B1 (en) | System for recovering and recycling usable fibers from white water in a papermaking process | |
KR101532947B1 (en) | Apparatus for drying seaweeds | |
CN215040531U (en) | Inclined screen type solid-liquid separator | |
CN218459794U (en) | Environment-friendly cement raw material grinding device | |
US8506824B1 (en) | Method for separating putrescible organic matter from inorganic grit suspended in waste water and sewage | |
CN101400852B (en) | Arrangement in connection with screening apparatuses | |
CN101988231B (en) | Cleaning device for looms |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: METSO PAPER, INC., FINLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HODEN, EBBE;REEL/FRAME:024295/0938 Effective date: 20100406 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |
|
AS | Assignment |
Owner name: VALMET TECHNOLOGIES, INC., FINLAND Free format text: CHANGE OF NAME;ASSIGNOR:METSO PAPER, INC.;REEL/FRAME:032551/0426 Effective date: 20131212 |