EP0993520B1 - Method for dehydrating solid-based liquid suspensions, specially fiber-based suspensions - Google Patents
Method for dehydrating solid-based liquid suspensions, specially fiber-based suspensions Download PDFInfo
- Publication number
- EP0993520B1 EP0993520B1 EP98939587A EP98939587A EP0993520B1 EP 0993520 B1 EP0993520 B1 EP 0993520B1 EP 98939587 A EP98939587 A EP 98939587A EP 98939587 A EP98939587 A EP 98939587A EP 0993520 B1 EP0993520 B1 EP 0993520B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wedge
- deflection
- zone
- degrees
- suspensions
- 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.)
- Expired - Lifetime
Links
- 239000000725 suspension Substances 0.000 title claims description 8
- 239000006194 liquid suspension Substances 0.000 title claims description 3
- 239000007787 solid Substances 0.000 title claims 2
- 239000000835 fiber Substances 0.000 title description 6
- 238000003825 pressing Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 241000272525 Anas platyrhynchos Species 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/04—Arrangements thereof
-
- 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
- D21F1/80—Pulp catching, de-watering, or recovering; Re-use of pulp-water using endless screening belts
Definitions
- the invention relates to a device for dewatering solid-liquid suspensions, in particular fiber suspensions, in which the Suspension is drained between two belts, one being Drainage zone is designed as a wedge zone and through that of the wedge zone subsequent pair of rollers both a surface pressure, and a Line pressing force on the fabric web formed from the fiber suspension is exercised.
- Such devices are e.g. known from AT 402.517.
- S-train rollers with a surface pressure and subsequently several press nips provided with a line pressure. Due to the multitude of diversion and Press rolls result in a relatively long length of the machine.
- EP 0 460 638 A1 shows a device for washing Pulp, in which a pulp suspension is only wedge-shaped between two converging tapes and then by several Rolls is deflected, with an additional roller at the end of the wedge zone is provided for transporting the lower belt.
- US 4,525,241 shows the press part of a paper machine with a range of press nips, however, due to the thinness of the web, no S-train rollers are provided. The aim of the invention is therefore to simplify the known device and a shorter and more compact design, as a result of this To achieve cost reductions.
- An advantageous embodiment of the invention is characterized in that that the wedge height at its output end, especially over the total web width, the height is adjustable. This allows the most varied Sheet weights are produced.
- An advantageous embodiment of the invention is characterized in that that the wrap of the first combined deflection and pressure roller is between 10 and 90 degrees, preferably about 60 degrees.
- Another embodiment of the invention is characterized in that the wrapping of the second combined deflection and pressure roller is between 30 and 120 degrees, preferably about 100 degrees.
- a favorable embodiment of the invention is characterized in that only a single upper and / or lower deflection roller at the beginning of the wedge is provided as a tension roller directly at the beginning of the wedge. Thereby additional rollers can be saved, which leads to a corresponding shortening the system and significant cost savings.
- a favorable development of the invention is characterized in that the wedge upper part in particular automatically, for example, elastically, adjustable and the opposite part is fixed.
- FIG. 1 shows a drainage device according to the prior art Technique
- Fig. 2 shows a drainage device according to the invention shows.
- An upper sieve or filter belt 4 runs over an upper deflection roller 6, which is adjustable and adjustable in its position, and subsequently via a deflection roller 7 in the wedge formed by the plates 10 and 11.
- the second screen or filter belt 5 runs over a corresponding deflection roller 8 and a further deflection roller 9 also in the wedge.
- the one to be drained Material for example fiber material, is passed through a headbox 12 also introduced into the wedge.
- the wedge upper part 10 and the wedge lower part 11 are on the side of the headbox by means of a threaded spindle 13 mechanically connected and adjustable in distance.
- the wedge upper part 10 is here by means of a pneumatic or hydraulic hose adjustable in height.
- the supply of compressed air or the hydraulic fluid takes place via a connection 15.
- stop screws 16 On Slide shoe 17 serves to absorb the axial forces.
- bracket 18 for candelabra i.e. for the exchange of the endless sieve belts, intended.
- Fig. 2 it can be seen that the upper deflection roller 6, which is in its position is adjustable and adjustable by means of hydraulic or pneumatic cylinders represents only deflection roller for the upper wire 4.
- the previous Lower deflection roller is therefore omitted, which makes it much more compact Construction can be achieved.
- the medium hydraulic or pneumatic cylinder 9 is adjustable and adjustable.
- the two S-train rollers 21, 22 are here as combined deflection and Pressure rollers executed.
- the pressure of the roller 22 against the roller 21 takes place by means of hydraulic cylinder 23, whereby a nip 24 with additional Line force results.
- Press roll pairs 25, 26 are provided so that at the end of the dewatering device the desired dry content can be achieved.
- the first combined deflection and pressure roller 21 of the pair of rollers is here below the end of the wedge zone 10, 11 and directly after it arranged, the wedge plate 10 to over the combined deflection and
- Pressure roller 21 is guided and the opposite part of the wedge plate 11 extends into the gusset between screen belt 5 and roller 21.
- the wrap the first combined deflection and pressure roller 21 about 60 degrees while wrapping the second combined Deflection and pressure roller 22 is about 100 degrees.
- the invention is not limited by the examples, so could be Example of the arrangement of the combined deflection and pressure rollers vice versa, i.e. the first roller may be arranged at the top. There are others too Adjustment and pressure mechanisms for the deflection rollers and the pressure rollers possible.
Description
Die Erfindung betrifft eine Vorrichtung zur Entwässerung von Feststoff-Flüssigkeitssuspensionen, insbesondere Faserstoffsuspensionen, bei der die Suspension zwischen zwei Bändern entwässert wird, wobei eine Entwässerungszone als Keilzone ausgebildet ist und durch das der Keilzone nachfolgende Walzenpaar sowohl eine Flächenpreßkraft, als auch eine Linienpreßkraft auf die aus der Faserstoffsuspension gebildete Stoffbahn ausgeübt wird.The invention relates to a device for dewatering solid-liquid suspensions, in particular fiber suspensions, in which the Suspension is drained between two belts, one being Drainage zone is designed as a wedge zone and through that of the wedge zone subsequent pair of rollers both a surface pressure, and a Line pressing force on the fabric web formed from the fiber suspension is exercised.
Derartige Vorrichtungen sind z.B. aus der AT 402.517 bekannt. Zur Erreichung eines hohen Trockengehaltes werden hier einerseits sog. S-Zug-Walzen mit einer Flächenpressung und in weiterer Folge mehrere Preßnips mit einer Linienpressung vorgesehen. Durch die Vielzahl der Umlenkungsund Preßwalzen ergibt sich eine relativ große Länge der Maschine.Such devices are e.g. known from AT 402.517. To achieve of high dry content are so-called S-train rollers with a surface pressure and subsequently several press nips provided with a line pressure. Due to the multitude of diversion and Press rolls result in a relatively long length of the machine.
Weiters zeigt die EP 0 460 638 A1 eine Vorrichtung zum Waschen von Zellstoff, bei der eine Zellstoffsuspension erst zwischen zwei keilförmig zusammenlaufenden Bändern entwässert und anschließend um mehrere Walzen umgelenkt wird, wobei am Ende der Keilzone zusätzlich eine Walze zum Transport des unteren Bandes vorgesehen ist. Die US 4,525,241 zeigt den Pressenteil einer Papiermaschine wobei eine Reiche von Pressnips, jedoch wegen der Dünne der Bahn keinerlei S-Zug-Walzen vorgesehen sind. Ziel der Erfindung ist es daher, die bekannte Vorrichtung zu vereinfachen und eine kürzere und kompaktere Bauweise sowie dadurch bedingte Kostenreduzierungen zu erzielen.Furthermore, EP 0 460 638 A1 shows a device for washing Pulp, in which a pulp suspension is only wedge-shaped between two converging tapes and then by several Rolls is deflected, with an additional roller at the end of the wedge zone is provided for transporting the lower belt. US 4,525,241 shows the press part of a paper machine with a range of press nips, however, due to the thinness of the web, no S-train rollers are provided. The aim of the invention is therefore to simplify the known device and a shorter and more compact design, as a result of this To achieve cost reductions.
Dies erfolgt erfindungsgemäß dadurch, daß die Keilzone aus einer oberen Keilplatte und einer unteren Keilplatte besteht und die erste kombinierte Umlenk- und Anpreßwalze des Walzenpaares unterhalb des Endes der Keilzone und direkt anschließend daran angeordnet ist, wobei die Keilzone bis über die erste nachfolgende kombinierte Umlenk- und Anpreßwalze geführt werden und der gegenüberliegende Teil bis in den Zwickel zwischen Siebband und Walze reichen kann. Dadurch wird eine Verkürzung der Maschine erreicht, wodurch durch diese Ausführung weiters die Faserbahn zwischen den Sieben bis in die erste kombinierte Umlenk- und Anpreßwalze hinein stabilisiert wird, wodurch ein Zurückstauchen der Fasern und in weiterer Folge ein seitliches Ausquetschen des Faserstoffes vor dem S-Zug und dem Preßnip verhindert wird. Auch wird dadurch ein nachfolgendes Ausdehnen des Filterkuchens und damit eine Rückbefeuchtung verhindert. Vor allem bei schwer entwässerbaren Stoffen wird die Durchsatzleistung der Entwässerungsvorrichtung dadurch gesteigert. Durch die Kombination der die Flächenpreßkraft ausübenden S-Zug-Walzen mit einem Preßnip mit Linienpreßkraft können zwei Walzen entfallen, wodurch sich eine wesentlich kürzere und kompaktere Bauweise ergibt. Durch den Entfall der Walzen samt Lagerung können auch die Kosten reduziert werden.This is done according to the invention in that the wedge zone from an upper Wedge plate and a lower wedge plate and the first combined Deflection and pressure roller of the pair of rollers below the end of the Wedge zone and immediately after it is arranged, the wedge zone up to the first subsequent combined deflection and pressure roller out and the opposite part up into the gusset between Screen belt and roller can be enough. This will shorten the Machine reached, which also leads to the fiber web through this design between the sieves up to the first combined deflection and pressure roller is stabilized in, causing the fibers to duck back and in Another consequence is a lateral squeezing of the fiber before the S-train and the press nip is prevented. It also becomes a subsequent one Extending the filter cake and thus preventing rewetting. The throughput capacity of the Drainage device increased. By combining the the surface pressing force exerting S-Zug rollers with a press nip Line pressing force can be dispensed with two rollers, making one essential shorter and more compact design results. By eliminating the rollers including storage, the costs can also be reduced.
Eine vorteilhafte Ausgestaltung der Erfindung ist dadurch gekennzeichnet, daß die Keilhöhe an ihrem ausgangsseitigen Ende, insbesondere über die gesamte Bahnbreite, in der Höhe einstellbar ist. Dadurch können die unterschiedlichsten Blattgewichte produziert werden.An advantageous embodiment of the invention is characterized in that that the wedge height at its output end, especially over the total web width, the height is adjustable. This allows the most varied Sheet weights are produced.
Eine vorteilhafte Ausgestaltung der Erfindung ist dadurch gekennzeichnet, daß die Umschlingung der ersten kombinierten Umlenk- und Anpreßwalze zwischen 10 und 90 Grad, vorzugsweise etwa 60 Grad beträgt.An advantageous embodiment of the invention is characterized in that that the wrap of the first combined deflection and pressure roller is between 10 and 90 degrees, preferably about 60 degrees.
Eine weitere Ausgestaltung der Erfindung ist dadurch gekennzeichnet, daß die Umschlingung der zweiten kombinierten Umlenk- und Anpreßwalze zwischen 30 und 120 Grad, vorzugsweise etwa 100 Grad, beträgt.Another embodiment of the invention is characterized in that the wrapping of the second combined deflection and pressure roller is between 30 and 120 degrees, preferably about 100 degrees.
Eine vorteilhafte Weiterbildung der Erfindung ist dadurch gekennzeichnet, daß der / die Umschlingungswinkel veränderbar, insbesondere einstellbar, ist / sind.An advantageous development of the invention is characterized in that that the wrap angle (s) can be changed, in particular adjusted, is / are.
Eine günstige Ausgestaltung der Erfindung ist dadurch gekennzeichnet, daß jeweils lediglich eine einzige obere und/oder untere Umlenkwalze am Keilbeginn als Spannwalze unmittelbar am Keilanfang vorgesehen ist. Dadurch können weitere Walzen eingespart werden, was zu entsprechender Verkürzung der Anlage und wesentlichen Kostenersparnissen führt. A favorable embodiment of the invention is characterized in that only a single upper and / or lower deflection roller at the beginning of the wedge is provided as a tension roller directly at the beginning of the wedge. Thereby additional rollers can be saved, which leads to a corresponding shortening the system and significant cost savings.
Eine günstige Weiterbildung der Erfindung ist dadurch gekennzeichnet, daß der Keiloberteil insbesondere selbsttätig beispielsweise elastisch, einstellbar und der gegenüberliegende Teil fix ist.A favorable development of the invention is characterized in that the wedge upper part in particular automatically, for example, elastically, adjustable and the opposite part is fixed.
Die Erfindung wird nunmehr anhand der Zeichnungen beispielhaft beschrieben, wobei Fig. 1 eine Entwässerungsvorrichtung nach dem Stand der Technik und Fig. 2 eine Entwässerungsvorrichtung gemäß der Erfindung zeigt. The invention will now be described by way of example with reference to the drawings, 1 shows a drainage device according to the prior art Technique and Fig. 2 shows a drainage device according to the invention shows.
Die Entwässerungsvorrichtung 1 mit einem Keilbereich 2 und einem weiteren
Entwässerungsbereich, insbesondere S-Zug-Bereich 3 ist in Fig. 1 dargestellt.
Dabei verläuft ein Obersieb bzw. Filterband 4 über eine obere Umlenkwalze
6, die in ihrer Lage einstellbar und regulierbar ist, und in weiterer Folge
über eine Umlenkwalze 7 in den durch die Platten 10 und 11 gebildeten Keil.
Das zweite Sieb bzw. Filterband 5 läuft über eine entsprechende Umlenkwalze
8 und eine weitere Umlenkwalze 9 ebenfalls in den Keil. Der zu entwässernde
Stoff, beispielsweise Faserstoff, wird über einen Stoffauflauf 12
ebenfalls in den Keil eingebracht. Das Keiloberteil 10 und das Keilunterteil
11 sind an der Seite des Stoffauflaufs mittels einer Gewindespindel 13
mechanisch verbunden und in ihrem Abstand einstellbar. Nach Verlassen
des Spaltes werden die Bänder 4 und 5 mit der dazwischenliegenden Stoffbahn
um S-Zug-Walzen 21 und 22 umgelenkt, wobei dadurch eine weitere
Entwässerung erfolgt. Das Keiloberteil 10 ist hier mittels eines Pneumatik-
bzw. Hydraulikschlauches in der Höhe einstellbar. Die Zufuhr der Druckluft
bzw. des Hydraulikfluids erfolgt über einen Anschluß 15. Zur Begrenzung der
minimalen bzw. maximalen Verstellung dienen Anschlagschrauben 16. Ein
Gleitschuh 17 dient zur Aufnahme der axialen Kräfte. Weiters ist eine Halterung
18 zur Kandileverung, d.h. für den Austausch der endlosen Siebbänder,
vorgesehen. Um die Umgebung sowenig wie möglich zu beeinflussen, ist mit
dem Keiloberteil 10 eine Haube 19 und mit dem Keilunterteil 11 eine Filtratwanne
20 integriert.The
In Fig. 2 ist ersichtlich, daß die obere Umlenkwalze 6, die in ihrer Lage
mittels Hydraulik- oder Pneumatikzylinder einstellbar und regulierbar ist, die
einzige Umlenkwalze für das obere Siebband 4 darstellt. Die bisherige
untere Umlenkwalze entfällt daher, wodurch eine wesentlich kompaktere
Bauweise erzielt werden kann. Analoges gilt für die untere Umlenkwalze 8,
die mittel Hydraulik- oder Pneumatikzylinder 9 einstellbar und regulierbar ist.In Fig. 2 it can be seen that the
Die beiden S-Zug-Walzen 21, 22 sind hier als kombinierte Umlenk- und
Anpreßwalzen ausgeführt. Die Anpressung der Walze 22 an die Walze 21
erfolgt dabei mittels Hydraulikzylinder 23, wodurch sich ein Nip 24 mit zusätzlicher
Linienkraft ergibt. Daran anschließend sind noch weitere
Preßwalzenpaare 25, 26 vorgesehen, so daß am Ende der Entwässerungsvorrichtung
der gewünschte Trockengehalt erreicht werden kann.The two S-
Die erste kombinierte Umlenk- und Anpreßwalze 21 des Walzenpaares ist
hier unterhalb des Endes der Keilzone 10, 11 und direkt anschließend daran
angeordnet, wobei die Keilplatte 10 bis über die kombinierte Umlenk- undThe first combined deflection and
Anpreßwalze 21 geführt ist und der gegenüberliegende Teil der Keilplatte 11
bis in den Zwickel zwischen Siebband 5 und Walze 21 reicht. Die Umschlingung
der ersten kombinierten Umlenk- und Anpreßwalze 21 beträgt
etwa 60 Grad , während die Umschlingung der zweiten kombinierten
Umlenk- und Anpreßwalze 22 etwa 100 Grad, beträgt.
Die Erfindung ist nicht durch die Beispiele beschränkt, so könnte zum Beispiel die Anordnung der kombinierten Umlenk- und Anpreßwalzen auch umgekehrt, d.h. die erste Walze oben angeordnet sein. Auch sind andere Verstell- und Anpreßmechanismen für die Umlenkwalzen und die Anpreßwalzen möglich.The invention is not limited by the examples, so could be Example of the arrangement of the combined deflection and pressure rollers vice versa, i.e. the first roller may be arranged at the top. There are others too Adjustment and pressure mechanisms for the deflection rollers and the pressure rollers possible.
Claims (8)
- Device for dewatering solid/liquid suspensions, especially pulp suspensions, where the suspension is dewatered between two belts (4, 5), one dewatering zone being designed as wedge zone (2), wherein the subsequent pair of rolls (21, 22) imparts both area pressure and line pressure on the pulp web formed by the pulp suspension, characterized by the wedge zone (2) consisting of an upper wedge plate (10) and a lower wedge plate (11) and the first combined deflection and press roll (21) of the pair of rolls being arranged below the end of the wedge zone (2) and directly adjacent to it.
- Device according to Claim 1, characterized by the wedge height at its outlet end, especially over the entire web width, being adjustable in its height.
- Device according to Claim 1 or 2, characterized by the wedge zone (2) being extended beyond the first subsequent combined deflection and press roll (21) and the opposite part reaching into the gap between the wire belt (5) and the roll (21).
- Device according to one of the Claims 1 to 3, characterized by the wrap angle of the first deflection and press roll (21) being between 10 and 90 degrees, preferably approximately 60 degrees.
- Device according to one of the Claims 1 to 4, characterized by the wrap angle of the second combined deflection and press roll (22) being between 30 and 120 degrees, preferably approximately 100 degrees.
- Device according to one of the Claims 4 or 5, characterized by the wrap angle or angles being changeable, especially adjustable.
- Device according to one of the Claims 1 to 6, characterized by only one upper and/or lower deflection roll (6, 8) at the beginning of the wedge being in each case provided as stretcher roll immediately at the beginning of the wedge.
- Device according to one of the Claims 1 to 7, characterized by the upper part (10) of the wedge being especially automatically adjustable, for instance, elastically and by the opposite part (11) being fixed.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0112297A AT404946B (en) | 1997-07-01 | 1997-07-01 | DEVICE FOR DRAINING SOLID-LIQUID SUSPENSIONS, IN PARTICULAR FIBER-SUSPENSIONS |
AT112297 | 1997-07-01 | ||
PCT/EP1998/004045 WO1999001609A1 (en) | 1997-07-01 | 1998-07-01 | Method for dehydrating solid-based liquid suspensions, specially fiber-based suspensions |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0993520A1 EP0993520A1 (en) | 2000-04-19 |
EP0993520B1 true EP0993520B1 (en) | 2002-09-18 |
Family
ID=3507066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98939587A Expired - Lifetime EP0993520B1 (en) | 1997-07-01 | 1998-07-01 | Method for dehydrating solid-based liquid suspensions, specially fiber-based suspensions |
Country Status (10)
Country | Link |
---|---|
US (1) | US6338773B1 (en) |
EP (1) | EP0993520B1 (en) |
JP (1) | JP4461202B2 (en) |
CN (1) | CN1134568C (en) |
AT (1) | AT404946B (en) |
AU (1) | AU8804798A (en) |
BR (1) | BR9810959A (en) |
CA (1) | CA2294903C (en) |
DE (1) | DE59805627D1 (en) |
WO (1) | WO1999001609A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT408461B (en) * | 1999-11-17 | 2001-12-27 | Andritz Ag Maschf | DEVICE FOR DRAINING A FIBROUS MATERIAL |
SE516830C2 (en) * | 2000-08-01 | 2002-03-12 | Metso Paper Inc | Twin-wire press |
AT412483B (en) * | 2003-03-26 | 2005-03-25 | Andritz Ag Maschf | METHOD AND DEVICE FOR MOORING FIBROUS MATERIALS |
SE526798C2 (en) * | 2004-03-22 | 2005-11-08 | Metso Paper Inc | Double wire press with height and adjustable drainage table |
SE527250C2 (en) * | 2004-06-14 | 2006-01-31 | Metso Paper Inc | Frame for twin-wire press to dewater fiber suspension and form continuous web has pair of longitudinal side members releasably connected by distance elements and having upper and lower side members with flat sheet metal elements |
US7381329B1 (en) * | 2006-11-07 | 2008-06-03 | William Harris Moss | Belt press apparatus and method for high solids capture and high solids content |
CN102046878A (en) * | 2008-05-28 | 2011-05-04 | 美佐纸业股份有限公司 | Twin wire press and method for dewatering a fibre suspension |
US7964105B2 (en) * | 2008-08-07 | 2011-06-21 | William Harris Moss | Method for improving belt press dewatering |
BRPI1009526A2 (en) * | 2009-03-09 | 2016-03-15 | Univenture Inc | devices and method of separating particles from mixture containing liquid and particles. |
SE535614C2 (en) | 2010-12-22 | 2012-10-16 | Metso Paper Sweden Ab | Method and apparatus for improving dewatering in a double-wire press |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT387379B (en) * | 1982-03-01 | 1989-01-10 | Andritz Ag Maschf | DEVICE FOR HUMIDIFYING THE FILTER CAKE ON DRAINAGE MACHINES |
FI820776L (en) * | 1982-03-05 | 1983-09-06 | Valmet Oy | PRESSPARTI I PAPPERSMASKIN |
AT385681B (en) * | 1986-08-18 | 1988-05-10 | Andritz Ag Maschf | PRINTING DEVICE FOR MACHINES OR PROVIDED MACHINE FOR DRAINING OR FILTER OR FOR PRESSED GOODS |
DE4024175A1 (en) * | 1990-06-06 | 1992-02-27 | Bernt U Treu | METHOD AND DEVICE FOR WASHING PULP |
DE59203943D1 (en) * | 1991-04-30 | 1995-11-16 | Huyck Austria | Belt press or Manchon. |
AT402951B (en) * | 1995-09-19 | 1997-10-27 | Andritz Patentverwaltung | DEVICE FOR DRAINING VIBRANT-LIQUID MIXTURES, IN PARTICULAR CELLULAR SUSPENSIONS |
AT402517B (en) * | 1995-11-10 | 1997-06-25 | Andritz Patentverwaltung | DEVICE FOR DRAINING SOLID-LIQUID SUSPENSIONS, IN PARTICULAR CELLULAR SUSPENSIONS |
-
1997
- 1997-07-01 AT AT0112297A patent/AT404946B/en not_active IP Right Cessation
-
1998
- 1998-07-01 BR BR9810959-6A patent/BR9810959A/en not_active IP Right Cessation
- 1998-07-01 AU AU88047/98A patent/AU8804798A/en not_active Abandoned
- 1998-07-01 US US09/445,971 patent/US6338773B1/en not_active Expired - Lifetime
- 1998-07-01 DE DE59805627T patent/DE59805627D1/en not_active Expired - Fee Related
- 1998-07-01 CN CNB988068214A patent/CN1134568C/en not_active Expired - Lifetime
- 1998-07-01 CA CA002294903A patent/CA2294903C/en not_active Expired - Lifetime
- 1998-07-01 JP JP50632899A patent/JP4461202B2/en not_active Expired - Lifetime
- 1998-07-01 WO PCT/EP1998/004045 patent/WO1999001609A1/en active IP Right Grant
- 1998-07-01 EP EP98939587A patent/EP0993520B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0993520A1 (en) | 2000-04-19 |
WO1999001609A1 (en) | 1999-01-14 |
AU8804798A (en) | 1999-01-25 |
CA2294903C (en) | 2008-10-21 |
JP2002508813A (en) | 2002-03-19 |
CN1261937A (en) | 2000-08-02 |
AT404946B (en) | 1999-03-25 |
US6338773B1 (en) | 2002-01-15 |
JP4461202B2 (en) | 2010-05-12 |
DE59805627D1 (en) | 2002-10-24 |
ATA112297A (en) | 1998-08-15 |
BR9810959A (en) | 2000-09-26 |
CA2294903A1 (en) | 1999-01-14 |
CN1134568C (en) | 2004-01-14 |
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