EP2163683A1 - Pulper with a screening sheet and uses of such a pulper - Google Patents

Pulper with a screening sheet and uses of such a pulper Download PDF

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Publication number
EP2163683A1
EP2163683A1 EP09010064A EP09010064A EP2163683A1 EP 2163683 A1 EP2163683 A1 EP 2163683A1 EP 09010064 A EP09010064 A EP 09010064A EP 09010064 A EP09010064 A EP 09010064A EP 2163683 A1 EP2163683 A1 EP 2163683A1
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EP
European Patent Office
Prior art keywords
pulper
balls
screen plate
pulper according
specific gravity
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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.)
Granted
Application number
EP09010064A
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German (de)
French (fr)
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EP2163683B1 (en
Inventor
Hans-Joachim Boltersdorf
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Individual
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Individual
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Priority claimed from DE102009009405A external-priority patent/DE102009009405A1/en
Application filed by Individual filed Critical Individual
Priority to EP10009539A priority Critical patent/EP2292834A1/en
Publication of EP2163683A1 publication Critical patent/EP2163683A1/en
Priority to DE102010020936A priority patent/DE102010020936A1/en
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Publication of EP2163683B1 publication Critical patent/EP2163683B1/en
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/34—Kneading or mixing; Pulpers
    • D21B1/345—Pulpers
    • 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
    • D21D5/04—Flat screens
    • 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
    • D21D5/16—Cylinders and plates for screens

Definitions

  • the invention relates to a pulper with a screen plate, a stirrer arranged above, a first outlet above the screen plate and a drain below the screen plate. Moreover, the invention relates to different methods for using such a pulper.
  • Such pulpers are used for the treatment of paper residues, biological materials and a variety of other substances.
  • the substances are subjected to a grinding process and it different fractions are separated.
  • the separation of the fractions is done on the one hand by the arrangement of the processes and on the other hand, the design and arrangement of the screen plate.
  • the invention has for its object to further develop such pulpers and to provide methods for using such a pulper.
  • the arrangement of balls above the screen plate causes these balls to accelerate the processes in the pulper.
  • Some of the balls have the function of a ball mill. However, depending on the size, weight, and material of the balls, the balls will give further positive results during treatment of residuals in the pulper.
  • the balls do not float in the pulper, they should have a specific gravity that is above 1.
  • the specific gravity may be less than 1, since the balls with the stirrer can also be conveyed into the material to be ground against their buoyancy.
  • spheres having a specific gravity between 1.3 and 1.8 Particularly good results were achieved with spheres having a specific gravity between 1.3 and 1.8.
  • spheres of PVC with a specific gravity of about 1.4 are particularly suitable for the processes in the pulper.
  • the balls may have a lenticular or even angular surface.
  • the surface of the balls can be varied. However, particularly good results were achieved with a spherical spherical shape.
  • the pulper has a pulper vessel which can be filled to a level and the inlet and outlet extend in a region above this level.
  • the liquid column in the inlet and in the outlet can serve to provide an overpressure in the pulper.
  • the screen plate has holes with an area the size of a circular area of 0.1 to 0.5 mm.
  • the screen plate has a flat perforated plate.
  • the pulper can thereby be used for de-staining, painting and sorting.
  • the perforated plate has slots.
  • commonly used slotted plates can be used in the field of use of pulpers.
  • slits with a width of 0.1 to 0.2 mm and a length of one to several centimeters are suitable.
  • the object of the invention is also achieved with a use of such a pulper in which chips and accompanying substances are treated in the pulper with the balls and the stirrer, in a hydrocyclone the balls are separated and the balls are returned to the pulper.
  • This process is preferably operated continuously to allow effective rapid treatment.
  • the pulper is particularly suitable as a deflaker and as a defibrillator.
  • Embodiments of various pulpers are in the FIGS. 1 to 5 shown.
  • a pulper 1 has a screen plate 2 and a stirrer 3 arranged above it.
  • the stirrer 3 has a central spiral 4 and radially arranged painting elements 5, 6 which interact with counterparts 7, 8 on the pulper vessel 9.
  • the spiral increases to a stirring element 10, which serves to stir the arranged in the pulper balls 11 above the screen plate.
  • passing fibers can be removed through the tube 12, while various fractions can be deducted from above the screen plate 2 accumulating fibers through the screw tubes 13, 14 and 15, to optionally also the pulper can be added again.
  • a slider 16 makes it possible to remove accumulating residues from the pulper on the screen plate.
  • FIGS. 2 and 3 Various arrangements of the spiral tubes are in the FIGS. 2 and 3 shown. While in FIG. 2 with two arranged at different heights screw tubes 17, 18 residues can be removed from the pulper, shows the FIG. 3 two screw tubes, of which a screw tube 19 removes residues up, while the other screw tube 20 removes residues down.
  • FIG. 4 shows an alternative embodiment of a pulper 30 in which a milling device 31 is also provided in the edge region in order to produce a grinding process between moving vanes 32 and a static wall 33. This grinding process is still supported by 35 arranged above the screen plate balls 35.
  • pulper 40 is replaced by a cover 41 of a similar to that in FIG. 1
  • Pulpers shown in Pulpergefäß 42 allows pressure adjustment.
  • a negative pressure in the pulper can be generated in order, for example, to counteract the drawing in of air toward the screen plate.
  • an overpressure can be generated.
  • the pressure is displayed with the manometer 43.
  • the supply and discharge lines 44, 45 are extended upward such that the liquid level in the lines can be varied in a particularly wide range. The liquid level in the lines can thereby also be above or below the liquid level in the pulper.
  • FIG. 6 shown embodiment of a pulper 50 therefore has a vertically arranged discharge line 51 with a built-head coil as Begleitaustragswitzl 52. This results in a very compact and thus inexpensive arrangement is achieved.
  • the spiral 53 at the bottom 54 of the pulper 50 leads to a particularly favorable filling of the accompanying discharge spiral 52.
  • the horizontal spiral 55 arranged at the upper end of the accompanying discharge spiral 52 permits further transport and ejection into a container (not shown).
  • Pulper 60 shown is essentially like the pulper in FIG. 5 built up. However, in order to avoid entrainment of air during stirring, a tube 62 was attached above the pulper vessel 61. As a result, the water column above the screen plate 63 can be increased and a funnel formation during stirring can be reduced. At the upper end of this tube 62 is a Windkessel 64, which in turn can be held under pressure with a line 65. The pressure displayed on the pressure gauge 66 can thereby be easily regulated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Filtering Materials (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

The pulper (1) has an agitator (3) arranged on a filter metal sheet (2). A discharge unit (13) provided above the metal sheet, and another discharge unit (12) is provided below the metal sheet. Balls (11) are arranged above the metal sheet, where diameter of the balls is larger than holes of the metal sheet. The balls have a specific density greater than 1 and lesser than 2, and are made of PVC. The pulper has a space closably set below positive pressure. The holes of the sheet have a circular surface with size of 0.1 to 0.5 mm.

Description

Die Erfindung betrifft einen Pulper mit einem Siebblech, einem darüber angeordneten Rührer, einem ersten Ablauf oberhalb des Siebblechs und einem Ablauf unterhalb des Siebblechs. Darüber hinaus betrifft die Erfindung unterschiedliche Verfahren zur Verwendung eines derartigen Pulpers.The invention relates to a pulper with a screen plate, a stirrer arranged above, a first outlet above the screen plate and a drain below the screen plate. Moreover, the invention relates to different methods for using such a pulper.

Derartige Pulper werden zur Aufbereitung von Papierreststoffen, biologischen Materialien und einer Vielzahl weiterer Stoffe verwendet. Hierbei werden die Stoffe einem Mahlvorgang unterzogen und es werden verschiedene Fraktionen getrennt. Die Trennung der Fraktionen geschieht einerseits durch die Anordnung der Abläufe und andererseits die Ausbildung und Anordnung des Siebbleches.Such pulpers are used for the treatment of paper residues, biological materials and a variety of other substances. Here, the substances are subjected to a grinding process and it different fractions are separated. The separation of the fractions is done on the one hand by the arrangement of the processes and on the other hand, the design and arrangement of the screen plate.

Derartige Pulper sind in verschiedensten Ausführungsformen seit vielen Jahren im Einsatz und sie haben sich gut bewährt.Such pulpers are in various embodiments for many years in use and they have worked well.

Der Erfindung liegt die Aufgabe zugrunde derartige Pulper weiterzuentwickeln und Verfahren zur Verwendung eines derartigen Pulpers bereitzustellen.The invention has for its object to further develop such pulpers and to provide methods for using such a pulper.

Diese Aufgabe wird dadurch gelöst, dass oberhalb des Siebbleches Kugeln angeordnet sind, deren Durchmesser größer als die Löcher des Siebblechs ist.This object is achieved in that above the screen plate balls are arranged whose diameter is greater than the holes of the screen plate.

Die Anordnung von Kugeln oberhalb des Siebbleches führt dazu, dass diese Kugeln die Prozesse im Pulper beschleunigen. Die Kugeln haben hierbei zum Teil die Funktion einer Kugelmühle. Je nach Auswahl von Größe, Gewicht und Material der Kugeln führen die Kugeln jedoch zu weiteren positiven Ergebnissen während der Behandlung von Reststoffen im Pulper.The arrangement of balls above the screen plate causes these balls to accelerate the processes in the pulper. Some of the balls have the function of a ball mill. However, depending on the size, weight, and material of the balls, the balls will give further positive results during treatment of residuals in the pulper.

Obwohl das Prinzip der Kugelmühle seit langem bekannt ist, wurden im Pulper bisher keine Kugeln eingesetzt, da davon ausgegangen wird, dass derartige Kugeln im Mahlprozess zerstört werden oder negative Auswirkungen auf die Vorgänge im Pulper haben.Although the principle of the ball mill has long been known, so far no balls have been used in the pulper, since it is assumed that such balls are destroyed in the grinding process or have negative effects on the processes in the pulper.

Erfreulicherweise hat sich herausgestellt, dass der Einsatz von Kugeln im Pulper die Abläufe deutlich beschleunigt und die Kugeln dadurch einen positiven Einfluss auf den Prozess im Pulper haben.Fortunately, it has been found that the use of balls in the pulper significantly accelerates the processes and thus the balls have a positive influence on the process in the pulper.

Damit die Kugeln nicht im Pulper aufschwimmen, sollten sie eine spezifische Dichte haben, die über 1 liegt. Für spezielle Anwendungen kann die spezifische Dichte unter 1 liegen, da die Kugeln mit dem Rührer auch entgegen ihrem Auftrieb in das Mahlgut hinein gefördert werden können.So that the balls do not float in the pulper, they should have a specific gravity that is above 1. For specific applications, the specific gravity may be less than 1, since the balls with the stirrer can also be conveyed into the material to be ground against their buoyancy.

Besonders gute Ergebnisse konnten erzielt werden, wenn die Kugeln eine spezifische Dichte von unter 2,0 haben. Zu schwere Kugeln können das Siebblech beschädigen und sie können durch Abrieb einen negativen Einfluss auf die Prozesse im Pulper haben.Particularly good results could be achieved if the spheres have a specific gravity of less than 2.0. Too heavy balls can damage the screen plate and they can have a negative impact on the processes in the pulper due to attrition.

Besonders gute Ergebnisse wurden mit Kugeln mit einer spezifischen Dichte zwischen 1,3 und 1,8 erzielt. Beispielsweise eignen sich Kugeln aus PVC mit einem spezifischen Gewicht von etwa 1,4 besonders gut für die Prozesse im Pulper.Particularly good results were achieved with spheres having a specific gravity between 1.3 and 1.8. For example, spheres of PVC with a specific gravity of about 1.4 are particularly suitable for the processes in the pulper.

Die Kugeln können eine linsenförmige oder auch eckige Oberfläche aufweisen. Je nach Anwendungsfall kann die Oberfläche der Kugeln variiert werden. Besonders gute Ergebnisse wurden jedoch mit einer sphärischen Kugelform erzielt.The balls may have a lenticular or even angular surface. Depending on the application, the surface of the balls can be varied. However, particularly good results were achieved with a spherical spherical shape.

Besonders gute Ergebnisse konnten mit einem Pulper erzielt werden, der einen unter Überdruck setzbaren geschlossenen Raum aufweist. Dies ermöglicht es oberhalb der Flüssigkeitsoberfläche im Pulper ein Luftpolster mit einem Überdruck von 0,1 bis 0,5 bar, wie beispielsweise von 0,2 bar einzusetzen.Particularly good results could be achieved with a pulper having a pressurizable closed space. This makes it possible to use an air cushion with an overpressure of 0.1 to 0.5 bar, such as 0.2 bar, above the liquid surface in the pulper.

Um einen derartigen Überdruck im Pulper zu erzeugen, wird vorgeschlagen, dass der Pulper ein bis zu einem Niveau befüllbares Pulpergefäß aufweist und sich Zulauf und Ablauf in einem Bereich oberhalb dieses Niveaus erstrecken. Dadurch kann die Flüssigkeitssäule im Zulauf und im Ablauf dazu dienen, einen Überdruck im Pulper bereitzustellen. Durch eine Variation der Höhe von Zulauf und Ablauf kann somit auf einfache Art und Weise der Druck im Pulper variiert werden. Insbesondere für den Einsatz des Pulpers als Drucksortierer wird vorgeschlagen, dass das Siebblech Löcher mit einer Fläche von der Größe einer Kreisfläche von 0,1 bis 0,5 mm aufweist.In order to produce such an overpressure in the pulper, it is proposed that the pulper has a pulper vessel which can be filled to a level and the inlet and outlet extend in a region above this level. As a result, the liquid column in the inlet and in the outlet can serve to provide an overpressure in the pulper. By varying the height of inlet and outlet can thus be varied in a simple manner, the pressure in the pulper. In particular for the use of the pulper as a pressure sorter, it is proposed that the screen plate has holes with an area the size of a circular area of 0.1 to 0.5 mm.

Aus konstruktiven Gründen ist es vorteilhaft, wenn das Siebblech ein planes Lochblech aufweist. Der Pulper kann dadurch zum Entstippen, Malen und Sortieren verwendet werden.For structural reasons, it is advantageous if the screen plate has a flat perforated plate. The pulper can thereby be used for de-staining, painting and sorting.

Je nach Einsatzbereich ist es vorteilhaft, wenn das Lochblech Schlitze aufweist. Hierbei können im Bereich des Einsatzes von Pulpern üblicherweise verwendete Schlitzbleche eingesetzt werden. Beispielsweise eignen sich Schlitze mit einer Breite von 0,1 bis 0,2 mm und einer Länge von einem bis mehreren Zentimetern.Depending on the application, it is advantageous if the perforated plate has slots. In this case, commonly used slotted plates can be used in the field of use of pulpers. For example, slits with a width of 0.1 to 0.2 mm and a length of one to several centimeters are suitable.

Die Aufgabe der Erfindung wird auch mit einer Verwendung eines derartigen Pulper gelöst, bei der im Pulper mit den Kugeln und dem Rührer Schnipsel und Begleitstoffe behandelt werden, in einem Hydrozyklon die Kugeln abgetrennt werden und die Kugeln in den Pulper zurückgeführt werden.The object of the invention is also achieved with a use of such a pulper in which chips and accompanying substances are treated in the pulper with the balls and the stirrer, in a hydrocyclone the balls are separated and the balls are returned to the pulper.

Hierbei ist es besonders vorteilhaft, wenn im Hydrozyklon eine Gegenstromwäsche durchgeführt wird.It is particularly advantageous if countercurrent washing is carried out in the hydrocyclone.

Dieses Verfahren wird vorzugsweise kontinuierlich betrieben, um eine effektive schnelle Behandlung zu ermöglichen.This process is preferably operated continuously to allow effective rapid treatment.

Der Pulper eignet sich besonders auch als Entstipper und als Defibrillator.The pulper is particularly suitable as a deflaker and as a defibrillator.

Ausführungsbeispiele verschiedenartiger Pulper sind in den Figuren 1 bis 5 dargestellt.Embodiments of various pulpers are in the FIGS. 1 to 5 shown.

Es zeigt:

Fig. 1
Schematisch einen Schnitt durch einen offenen Pulper mit Rührer,
Fig. 2
schematisch einen Schnitt durch einen Pulper mit Rührer und nach oben gerichteten Abzugsleitungen,
Fig. 3
schematisch einen Schnitt durch einen Pulper mit nach oben und unten gerichten Abzugsleitungen,
Fig. 4
einen schematischen Schnitt durch einen Pulper mit einem speziellen Rühr- und Mahlwerk,
Fig. 5
schematisch einen Schnitt durch einen geschlossenen Pulper und
Fig. 6
schematisch einen Schnitt durch einen geschlossenen Pulper mit einer senkrechten Austragswendel und
Fig. 7
schematisch einen Schnitt durch einen geschlossenen Pulper mit erhöhter Wassersäule.
It shows:
Fig. 1
Schematically a section through an open pulper with stirrer,
Fig. 2
1 is a schematic section through a pulper with stirrer and upwardly directed discharge lines;
Fig. 3
schematically a section through a pulper with up and down dishes deduction lines,
Fig. 4
a schematic section through a pulper with a special stirrer and grinder,
Fig. 5
schematically a section through a closed pulper and
Fig. 6
schematically a section through a closed pulper with a vertical Austragswendel and
Fig. 7
schematically a section through a closed pulper with increased water column.

Ein Pulper 1 weist ein Siebblech 2 und einem darüber angeordneten Rührer 3 auf. Der Rührer 3 hat eine zentrale Spirale 4 und radial angeordnete Malelemente 5, 6 die mit Gegenstücken 7, 8 am Pulpergefäß 9 zusammenwirken.A pulper 1 has a screen plate 2 and a stirrer 3 arranged above it. The stirrer 3 has a central spiral 4 and radially arranged painting elements 5, 6 which interact with counterparts 7, 8 on the pulper vessel 9.

Am unteren Ende der zentralen Spirale 4 vergrößert sich die Spirale zu einem Rührelement 10, das dazu dient die im Pulper angeordneten Kugeln 11 oberhalb des Siebblechs umzurühren.At the lower end of the central spiral 4, the spiral increases to a stirring element 10, which serves to stir the arranged in the pulper balls 11 above the screen plate.

Durch das Siebblech 2 hindurchgehende Faserstoffe können durch das Rohr 12 abgeführt werden, während verschiedene Fraktionen von oberhalb des Siebblechs 2 sich sammelnden Faserstoffen durch die Schneckenrohre 13, 14 und 15 abgezogen werden können, um gegebenenfalls auch dem Pulper wieder zugegeben werden können. Ein Schieber 16 ermöglicht es auf dem Siebblech sich ansammelnde Reststoffe aus dem Pulper zu entfernen.Through the screen plate 2 passing fibers can be removed through the tube 12, while various fractions can be deducted from above the screen plate 2 accumulating fibers through the screw tubes 13, 14 and 15, to optionally also the pulper can be added again. A slider 16 makes it possible to remove accumulating residues from the pulper on the screen plate.

Verschiedene Anordnungen der Spiralrohre sind in den Figuren 2 und 3 gezeigt. Während in Figur 2 mit zwei in unterschiedlicher Höhe angeordneten Schneckenrohren 17, 18 Reststoffe aus dem Pulper entnommen werden können, zeigt die Figur 3 zwei Schneckenrohre, von denen ein Schneckenrohr 19 Reststoffe nach oben abführt, während das andere Schneckenrohr 20 Reststoffe nach unten entfernt.Various arrangements of the spiral tubes are in the FIGS. 2 and 3 shown. While in FIG. 2 with two arranged at different heights screw tubes 17, 18 residues can be removed from the pulper, shows the FIG. 3 two screw tubes, of which a screw tube 19 removes residues up, while the other screw tube 20 removes residues down.

Die Figur 4 zeigt eine alternative Ausführungsform eines Pulpers 30 bei dem ebenfalls im Randbereich eine Mahleinrichtung 31 vorgesehen ist, um zwischen bewegten Flügeln 32 und einer statischen Wandung 33 einen Mahlvorgang zu erzeugen. Dieser Mahlvorgang wird durch oberhalb des Siebbleches 34 angeordnete Kugeln 35 noch unterstützt.The FIG. 4 shows an alternative embodiment of a pulper 30 in which a milling device 31 is also provided in the edge region in order to produce a grinding process between moving vanes 32 and a static wall 33. This grinding process is still supported by 35 arranged above the screen plate balls 35.

Bei dem in Figur 5 dargestellten Pulper 40 wird durch eine Abdeckung 41 eines ähnlich dem in Figur 1 gezeigten Pulpers im Pulpergefäß 42 eine Druckeinstellung ermöglicht. Dadurch kann ein Unterdruck im Pulper erzeugt werden, um z.B. dem Einziehen von Luft zum Siebblech hin entgegen zuwirken. Je nach Anforderungen kann aber auch ein Überdruck erzeugt werden. Der Druck wird mit dem Manometer 43 angezeigt. In diesem Ausführungsbeispiel sind die Zu- und Abführleitungen 44, 45 nach oben derart verlängert, dass der Flüssigkeitsspiegel in den Leitungen in einem besonders weiten Bereich variiert werden kann. Der Flüssigkeitsspiegel in den Leitungen kann dadurch auch oberhalb oder unterhalb des Flüssigkeitsspiegels im Pulper leigen.At the in FIG. 5 shown pulper 40 is replaced by a cover 41 of a similar to that in FIG. 1 Pulpers shown in Pulpergefäß 42 allows pressure adjustment. As a result, a negative pressure in the pulper can be generated in order, for example, to counteract the drawing in of air toward the screen plate. Depending on the requirements but also an overpressure can be generated. The pressure is displayed with the manometer 43. In this embodiment, the supply and discharge lines 44, 45 are extended upward such that the liquid level in the lines can be varied in a particularly wide range. The liquid level in the lines can thereby also be above or below the liquid level in the pulper.

Diese Leitungen können auch senkrecht angeordnet sein. Das in Figur 6 gezeigte Ausführungsbeispiel eines Pulpers 50 hat daher eine senkrecht angeordnete Abführleitung 51 mit einer eingebauten Kopfwendel als Begleitaustragswendel 52. Dadurch wird eine sehr kompakte und damit preisgünstige Anordnung erzielt. Außerdem führt die Spirale 53 am Boden 54 des Pulpers 50 zu einer besonders günstigen Befüllung der Begleitaustragswendel 52. Die an oberen Ende der Begleitaustragswendel 52 angeordnete waagerechte Wendel 55 ermöglicht einen Weitertransport und einen Auswurf in einen nicht gezeigten Behälter.These lines can also be arranged vertically. This in FIG. 6 shown embodiment of a pulper 50 therefore has a vertically arranged discharge line 51 with a built-head coil as Begleitaustragswendel 52. This results in a very compact and thus inexpensive arrangement is achieved. In addition, the spiral 53 at the bottom 54 of the pulper 50 leads to a particularly favorable filling of the accompanying discharge spiral 52. The horizontal spiral 55 arranged at the upper end of the accompanying discharge spiral 52 permits further transport and ejection into a container (not shown).

Der in Figur 7 gezeigte Pulper 60 ist im wesentlichen wie der Pulper in Figur 5 aufgebaut. Um jedoch ein Einziehen von Luft während des Rührens zu vermeiden, wurde oberhalb des Pulpergefäßes 61 ein Rohr 62 angebracht. Dadurch kann die über dem Siebblech 63 anstehende Wassersäule erhöht werden und eine Trichterbildung beim Rühren verringert werden. An oberen Ende dieses Rohres 62 befindet sich ein Windkessel 64, der wiederum mit einer Leitung 65 unter Druck gehalten werden kann. Der am Manometer 66 angezeigte Druck kann dadurch auf einfache Weise reguliert werden.The in FIG. 7 Pulper 60 shown is essentially like the pulper in FIG FIG. 5 built up. However, in order to avoid entrainment of air during stirring, a tube 62 was attached above the pulper vessel 61. As a result, the water column above the screen plate 63 can be increased and a funnel formation during stirring can be reduced. At the upper end of this tube 62 is a Windkessel 64, which in turn can be held under pressure with a line 65. The pressure displayed on the pressure gauge 66 can thereby be easily regulated.

Claims (15)

Pulper mit einem Siebblech, einem darüber angeordneten Rührer, einem ersten Ablauf oberhalb des Siebbleches und einem zweiten Ablauf unterhalb des Siebbleches, dadurch gekennzeichnet, dass oberhalb des Siebbleches Kugeln angeordnet sind, deren Durchmesser größer als die Löcher des Siebblechs ist.Pulper with a screen plate, a stirrer arranged above, a first outlet above the screen plate and a second outlet below the screen plate, characterized in that above the screen plate balls are arranged whose diameter is larger than the holes of the screen plate. Pulper nach Anspruch 1, dadurch gekennzeichnet, dass die Kugeln eine spezifische Dichte von über 1,0 haben.Pulper according to claim 1, characterized in that the balls have a specific gravity of more than 1.0. Pulper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kugeln eine spezifische Dichte von unter 2,0 haben.Pulper according to one of the preceding claims, characterized in that the balls have a specific gravity of less than 2.0. Pulper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kugeln eine spezifische Dichte von zwischen 1,3 und 1,8 haben.Pulper according to one of the preceding claims, characterized in that the balls have a specific gravity of between 1.3 and 1.8. Pulper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kugeln aus PVC hergestellt sind.Pulper according to one of the preceding claims, characterized in that the balls are made of PVC. Pulper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kugeln eine sphärische Oberfläche aufweisen.Pulper according to one of the preceding claims, characterized in that the balls have a spherical surface. Pulper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Pulper einen unter Überdruck setzbaren geschlossenen Raum aufweist.Pulper according to one of the preceding claims, characterized in that the pulper has a pressurizable closed space. Pulper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er ein bis zu einem Niveau befüllbares Gefäß aufweist und Zulauf und Ablauf sich in einem Bereich oberhalb dieses Niveaus erstrecken.Pulper according to one of the preceding claims, characterized in that it comprises a vessel which can be filled up to a level, and inlet and outlet extend in a region above this level. Pulper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Siebblech Löcher mit einer Fläche von der Größe einer Kreisfläche von 0,1 bis 0,5 mm aufweist.Pulper according to one of the preceding claims, characterized in that the screen plate has holes with an area of the size of a circular area of 0.1 to 0.5 mm. Pulper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Siebblech ein planes Lochblech aufweist.Pulper according to one of the preceding claims, characterized in that the screen plate has a flat perforated plate. Verwendung eines Pulpers nach einem der vorhergehenden Ansprüche, bei der im Pulper mit den Kugeln und dem Rührer Schnipsel und Begleitstoffe behandelt werden, in einem Hydrozyklon die Kugeln abgetrennt werden und die Kugeln in dem Pulper zurückgeführt werden.Use of a pulper according to any one of the preceding claims, wherein in the pulper with the balls and the stirrer, chips and condiments are treated, in a hydrocyclone, the balls are separated and the balls are recycled in the pulper. Verwendung nach Anspruch 11, dadurch gekennzeichnet, dass im Hydrozyklon eine Gegenstromwäsche durchgeführt wird.Use according to claim 11, characterized in that countercurrent washing is carried out in the hydrocyclone. Verwendung nach Anspruch 11 oder 12, dadurch gekennzeichnet, dass das Verfahren kontinuierlich betrieben wird.Use according to claim 11 or 12, characterized in that the method is operated continuously. Verwendung eines Pulpers nach einem der vorhergehenden Ansprüche 1 bis 10 als Entstipper.Use of a pulper according to one of the preceding claims 1 to 10 as a deduster. Verwendung eines Pulpers nach einem der vorhergehenden Ansprüche 1 bis 10 als Defibrillator.Use of a pulper according to one of the preceding claims 1 to 10 as a defibrillator.
EP09010064A 2008-08-28 2009-08-04 Pulper with a screening sheet and uses of such a pulper Not-in-force EP2163683B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10009539A EP2292834A1 (en) 2008-08-28 2009-08-04 Pulper with a screening sheet and uses of such a pulper
DE102010020936A DE102010020936A1 (en) 2008-08-28 2010-05-19 Pulper with a feed space and a displacement chamber

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008044716 2008-08-28
DE102009009405A DE102009009405A1 (en) 2008-08-28 2009-02-18 Pulper for use as e.g. deflaker in treating of paper shavings, has multiple balls that are arranged above perforated plate, where diameter of balls is greater than that of holes which are formed in perforated plate
DE102009024545 2009-06-08

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP10009539.7 Division-Into 2010-09-14

Publications (2)

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EP2163683A1 true EP2163683A1 (en) 2010-03-17
EP2163683B1 EP2163683B1 (en) 2011-01-26

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EP09010064A Not-in-force EP2163683B1 (en) 2008-08-28 2009-08-04 Pulper with a screening sheet and uses of such a pulper
EP10009539A Withdrawn EP2292834A1 (en) 2008-08-28 2009-08-04 Pulper with a screening sheet and uses of such a pulper

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP10009539A Withdrawn EP2292834A1 (en) 2008-08-28 2009-08-04 Pulper with a screening sheet and uses of such a pulper

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EP (2) EP2163683B1 (en)
AT (1) ATE497055T1 (en)
DE (2) DE502009000349D1 (en)
DK (1) DK2163683T3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012023258A1 (en) * 2012-03-13 2013-10-02 Hans-Joachim Boltersdorf Processor used in paper industry for processing e.g. waste paper, has output for free fiber and solutes, which is arranged under the separating device, and discharge coil which is arranged above the separating device
WO2013135224A3 (en) * 2012-03-13 2013-12-05 Hans-Joachim Boltersdorf Processor with a screening sheet and use of said type of screening sheet
CN104499380A (en) * 2014-12-18 2015-04-08 广西大学 Method for producing seedling breeding container from fibrous solid wastes
CN106868904A (en) * 2017-02-16 2017-06-20 天津市腾旭工贸有限公司 A kind of pulper

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106065540A (en) * 2016-06-20 2016-11-02 无锡鼎茂机械制造有限公司 A kind of Novel pulper
CN105887541A (en) * 2016-06-20 2016-08-24 无锡鼎茂机械制造有限公司 Shockproof cyclical pulper
DE102021211856B4 (en) 2021-10-21 2024-05-08 W. Lange GmbH Engineering & Screening Components Solvent for producing a suspension of solid particles and a flowable medium

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US2912174A (en) * 1950-09-30 1959-11-10 Rachel Bidwell Method and apparatus for the treatment of paper stocks
EP1826314A1 (en) * 2006-02-24 2007-08-29 Voith Patent GmbH Process for pulping and cleaning of papermaking raw materials containing impurities

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012023258A1 (en) * 2012-03-13 2013-10-02 Hans-Joachim Boltersdorf Processor used in paper industry for processing e.g. waste paper, has output for free fiber and solutes, which is arranged under the separating device, and discharge coil which is arranged above the separating device
WO2013135224A3 (en) * 2012-03-13 2013-12-05 Hans-Joachim Boltersdorf Processor with a screening sheet and use of said type of screening sheet
CN104508200A (en) * 2012-03-13 2015-04-08 汉斯-乔基姆·鲍尔特斯多夫 Processor with a screening sheet and use of said type of screening sheet
CN104499380A (en) * 2014-12-18 2015-04-08 广西大学 Method for producing seedling breeding container from fibrous solid wastes
CN106868904A (en) * 2017-02-16 2017-06-20 天津市腾旭工贸有限公司 A kind of pulper

Also Published As

Publication number Publication date
DE102010020936A1 (en) 2011-02-10
EP2163683B1 (en) 2011-01-26
DE502009000349D1 (en) 2011-03-10
EP2292834A1 (en) 2011-03-09
DK2163683T3 (en) 2011-04-26
ATE497055T1 (en) 2011-02-15

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