EP1084290B1 - Pulper - Google Patents
Pulper Download PDFInfo
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- EP1084290B1 EP1084290B1 EP99927861A EP99927861A EP1084290B1 EP 1084290 B1 EP1084290 B1 EP 1084290B1 EP 99927861 A EP99927861 A EP 99927861A EP 99927861 A EP99927861 A EP 99927861A EP 1084290 B1 EP1084290 B1 EP 1084290B1
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- European Patent Office
- Prior art keywords
- vessel
- pulper
- pulper according
- truncated cone
- flow
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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.)
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-
- 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
- D21D5/06—Rotary screen-drums
- D21D5/08—Rotary screen-drums combined with a rocking movement
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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
Definitions
- the present invention relates to a according to the preamble of Claim 1, as known from DE 964 286 C.
- Such pulp release devices are in DE AS 23 48 540 and in DE AS 26 58 845 and in DE 20 61 519 C2 and disclosed in US 2,661,666.
- Another fabric release device is disclosed in FR-A-1 374 767.
- Sieving units can be found in a wide variety of industries for a wide variety of applications. Very Screening units are widely used in processing technology, where they are used to sort flowable substances that contain solids of different sizes. An important application is the so-called fabric dissolver or pulper, which is used to prepare mixtures of substances that contain easily friable components. Processing is an important area of application of waste and waste-like substances as well as in the paper industry in waste paper processing.
- Such a pulper consists of a container with a Rotor is provided.
- the one that is to be reprocessed Mixture of substances entered in the container and also a liquid, generally water, in the container filled.
- the rotor is rotated and generated hereby strong flow forces.
- This current has - seen in an axial section through the pulper - a toroidal Shape, with two main flow components overlay, namely a radial and a concentric Flow direction.
- This flow is initially in the rotor area formed radially outwards against the container wall, it then rises to the top in the area of the Flow the liquid surface radially inwards again and then to be directed to the center of the rotor.
- This Flow can be supported by attaching additional baffles become. At the same time, the liquid is still experiencing a movement impulse in the direction of rotation of the rotor. This toroidal flow ensures that in the liquid contained solids again and again in the area of the rotor arrive and be processed there.
- the frayed components of the introduced mixture of substances form a suspension together with the liquid, which are withdrawn from the pulper through a perforated screen can.
- the non-fiberized components remaining in the pulper (hereinafter also called "coarse materials") in other ways, e.g. through one in the pulper gripping coarse dirt trap can be removed from the pulper.
- a preferred application is, for example, processing of waste paper or the treatment of waste for the biological utilization of individual components.
- the treatment of waste is the components that are good to use biologically, of which not biologically usable components separately. Because the biological usable components are easily shredded, in comparison to the other ingredients that are difficult or difficult cannot be frayed.
- the suspension generated and separated by the sieve, in which the biologically usable constituents are concentrated are then sent for biological recycling while the biologically unusable components, i.e. the coarse matter that after the deduction of the Suspension remain in the pulper, separated and another appropriate form of recovery can be supplied or be disposed of.
- the object of the present invention is that Defined at the beginning for separating To improve coarse matter from a suspension in such a way that wear is reduced, clearance and maintenance lighten the sieve, the flow of the suspension accelerates and product quality is improved.
- the idea underlying the present invention lies in that a screening device is used, which the Has the shape of a truncated cone.
- the truncated cone shows with its smaller circular area upwards.
- the sieve openings are on the sloping surface of the truncated cone arranged.
- the slope is designed to be roughly is tangential or parallel to the toroidal flow.
- the screening device is segmented and from the outside mountable.
- the inclination or slope is preferably 30 ° -50 °, whereby this value will vary depending on the shape of the container can.
- the oblique arrangement has the consequence that the Current constantly acts so that those sinking in the pulper Coarse materials are removed from the outer surface of the sieve, to be carried away by the current. This process is favored by the use of wipers, which, however, is less of a burden than at the stand subject to technology. The cleaning takes place not, as with the flat sieves shown or the cylindrical ones Seven, exclusively over the scraper bars instead, but to a significant extent on the flow.
- the screen openings can be designed differently, e.g. be square, circular or elongated. Their characteristic dimensions are preferably 6-30 mm.
- the sieve is preferably divided into segments, to facilitate its expansion.
- the to support the cleaning of the sieve holes from Coarse dirt used wipers are preferably on Rotor or its shaft attached and can also be very different Have designs. You can e.g. be straight or oblique.
- the wipers are preferred steadily or discontinuously curved to prevent flow and with equipped with a wear bar.
- the wear bar is preferably interchangeable and / or adjustable.
- a pump For pulling the suspension out of the pulper through the sieve a pump is preferably used, the drive of which can be regulated is, but also a free process in a lower one Storage tank is possible.
- the invention is particularly suitable for use within the Processing and separation of waste mixtures with a high Organic content, e.g. of municipal bio-waste. These wastes stand out alongside biogenic-organic ones Ingredients that are suitable for biological treatment and subsequent recycling into the natural cycle, through a relevant proportion of non-biogenic organic Interfering substances such as plastics, stones, glass and metals out.
- FIG. 1a to 1c show a schematic representation of a Embodiment of the screening device according to the invention, and 1a in cross section, FIG. 1b in section along the Line A-A 'of Figures 1a and 1c is an enlarged detail of the area labeled Z.
- the waste mixture becomes the cylindrical pulper container 1 fed with the addition of water.
- I denotes the waste supply line and II the water supply.
- the waste water mixture By rotating the rotor 2 around the container axis R. the waste water mixture is set in motion. It will be one strong toroidal flow 3 generated, which leads to the biogenic-organic non-woody components of the Waste be shredded.
- These fibers form with the im Pulper existing liquid is a suspension made by the frustoconical in the lower part of the pulp Strainer 4 is withdrawn and out of the outlet III flows, to which a pump (not shown) can be connected is.
- the non-biogenic organic remains in the pulper container 1 and the woody components of the waste, largely undestroyed by the flow forces stay, i.e. the coarse matter.
- the suspension generated and separated by the sieve, in which the biologically usable constituents are concentrated are then sent for biological recycling while the biologically unusable components, that is, the coarse matter that after deducting the Suspension remain in the pulper, another appropriate one Form of recovery or other disposal can be.
- Screening device 4 has the shape of a truncated cone.
- the Sieve openings are on the outer surface 5 of the truncated cone, are round and typically have a diameter 10 mm on.
- the inclination of the outer screen surface is approximately 30 ° to 50 ° with respect to the rotation axis R.
- the rotor 2 or the rotor shaft wipers 6 are attached, which are flow-repellent are curved in an arc.
- the front the scraper 6 is exchangeable and adjustable Protected wear shield 6a.
- Below the outlet III is a (not shown) collection container in which the running suspension is collected.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Filtering Materials (AREA)
- Filtration Of Liquid (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine gemäß dem Oberbegriff des Anspruchs 1, wie aus der DE 964 286 C bekannt.The present invention relates to a according to the preamble of Claim 1, as known from DE 964 286 C.
Derartige Stofflösevorrichtungen sind in der DE AS 23 48 540 und in der DE AS 26 58 845 sowie in der DE 20 61 519 C2 und in der US A 2,661,666 offenbart. Eine weitere Stofflöse-Vorrichtung ist in der FR-A-1 374 767 offenbart.Such pulp release devices are in DE AS 23 48 540 and in DE AS 26 58 845 and in DE 20 61 519 C2 and disclosed in US 2,661,666. Another fabric release device is disclosed in FR-A-1 374 767.
Siebeinheiten finden sich in den verschiedensten Industriezweigen für die unterschiedlichsten Anwendungsfälle. Sehr verbreitet sind Siebeinheiten in der Aufbereitungstechnik, wo sie zum Sortieren von fließfähigen Substanzen verwendet werden, die Feststoffe unterschiedlicher Größe enthalten. Ein wichtiger Anwendungsfall ist der sogenannte Stofflöser oder Pulper, der zur Aufbereitung von Stoffgemischen genutzt wird, die leicht zerfaserbare Bestandteile beinhalten. Wichtige Anwendungsbereiche liegen in der Aufbereitung von Abfällen und abfallähnlichen Stoffen sowie in der Papierindustrie bei der Altpapieraufbereitung.Sieving units can be found in a wide variety of industries for a wide variety of applications. Very Screening units are widely used in processing technology, where they are used to sort flowable substances that contain solids of different sizes. An important application is the so-called fabric dissolver or pulper, which is used to prepare mixtures of substances that contain easily friable components. Processing is an important area of application of waste and waste-like substances as well as in the paper industry in waste paper processing.
Ein solcher Pulper besteht aus einem Behälter, der mit einem Rotor versehen ist. Beim Betrieb wird das aufzubereitende Stoffgemisch in den Behälter eingetragen und außerdem eine Flüssigkeit, im allgemeinen Wasser, in den Behälter eingefüllt. Der Rotor wird in Drehungen versetzt und erzeugt hierdurch starke Strömungskräfte. Diese Strömung hat - in einem Axialschnitt durch den Pulper gesehen - eine toroidale Form, wobei sich zwei Hauptströmungskomponenten überlagern, nämlich eine radiale und eine konzentrische Strömungsrichtung. Im Rotorbereich ist diese Strömung zunächst radial nach außen gegen die Behälterwand ausgebildet, sie steigt sodann nach oben an, um im Bereich der Flüssigkeitsoberfläche wieder radial nach innen zu strömen und sodann zum Zentrum des Rotors geleitet zu werden. Diese Strömung kann durch anbringen zusätzlicher Leitbleche unterstützt werden. Gleichzeitig erfährt die Flüssigkeit noch einen Bewegungsimpuls in der Drehrichtung des Rotors. Diese toroidale Strömung sorgt dafür, daß die in der Flüssigkeit enthaltenen Feststoffe immer wieder in den Bereich des Rotors gelangen und dort bearbeitet werden.Such a pulper consists of a container with a Rotor is provided. During operation, the one that is to be reprocessed Mixture of substances entered in the container and also a liquid, generally water, in the container filled. The rotor is rotated and generated hereby strong flow forces. This current has - seen in an axial section through the pulper - a toroidal Shape, with two main flow components overlay, namely a radial and a concentric Flow direction. This flow is initially in the rotor area formed radially outwards against the container wall, it then rises to the top in the area of the Flow the liquid surface radially inwards again and then to be directed to the center of the rotor. This Flow can be supported by attaching additional baffles become. At the same time, the liquid is still experiencing a movement impulse in the direction of rotation of the rotor. This toroidal flow ensures that in the liquid contained solids again and again in the area of the rotor arrive and be processed there.
Durch die starke Strömung werden die im Pulper enthaltenen Feststoffe, die leicht zerfaserbar sind, zerfasert. Neben der Zerfaserung findet teilweise auch eine Verkürzung von Fasern statt bzw. geht ein Teil der zerfaserbaren Stoffe in Lösung. Nachdem das Schwergewicht des Vorganges aber in der Zerfaserung besteht, wird hier lediglich von "Zerfaserung" oder "Zerfasern" gesprochen und die daneben stattfindende Zerkleinerung und Auflösung nicht gesondert erwähnt. Due to the strong flow, those contained in the pulper Solids that are easily defibrillated defibrated. Next the defibration is sometimes shortened by Fibers take place or part of the fiberizable materials Solution. After the focus of the process but in the If there is fraying, only "fraying" or "fraying" and the one next to it Shredding and dissolution not mentioned separately.
Die zerfaserten Bestandteile des eingebrachten Stoffgemisches bilden zusammen mit der Flüssigkeit eine Suspension, die durch ein Lochsieb aus dem Pulper abgezogen werden kann. Die im Pulper zurückbleibenden nicht zerfaserten Bestandteile (in der Folge auch "Grobstoffe" genannt) können auf andere Art und Weise, z.B. durch einen in den Pulper greifenden Grobschmutzfänger aus dem Pulper entfernt werden.The frayed components of the introduced mixture of substances form a suspension together with the liquid, which are withdrawn from the pulper through a perforated screen can. The non-fiberized components remaining in the pulper (hereinafter also called "coarse materials") in other ways, e.g. through one in the pulper gripping coarse dirt trap can be removed from the pulper.
Ein bevorzugter Anwendungsfall ist zum Beispiel die Aufbereitung von Altpapier oder die Aufbereitung von Abfällen für eine biologische Verwertung einzelner Bestandteile. Bei der Aufbereitung von Abfällen werden die Bestandteile, die biologisch gut zu verwerten sind, von den nicht biologisch verwertbaren Bestandteilen getrennt. Denn die biologisch verwertbaren Bestandteile sind leicht zerfaserbar, im Vergleich zu den anderen Bestandteilen, die nur schwer oder nicht zerfaserbar sind.A preferred application is, for example, processing of waste paper or the treatment of waste for the biological utilization of individual components. at The treatment of waste is the components that are good to use biologically, of which not biologically usable components separately. Because the biological usable components are easily shredded, in comparison to the other ingredients that are difficult or difficult cannot be frayed.
Die erzeugte und durch das Lochsieb abgetrennte Suspension, in der die biologisch verwertbaren Bestandteile aufkonzentriert sind, kann dann der biologischen Verwertung zugeführt werden, während die biologisch nicht verwertbaren Bestandteile, d.h. die Grobstoffe, die nach dem Abzug der Suspension im Pulper verbleiben, abgeschieden und einer anderen angemessenen Verwertungsform zugeleitet werden können oder entsorgt werden. The suspension generated and separated by the sieve, in which the biologically usable constituents are concentrated are then sent for biological recycling while the biologically unusable components, i.e. the coarse matter that after the deduction of the Suspension remain in the pulper, separated and another appropriate form of recovery can be supplied or be disposed of.
Weitere bislang in Verbindung mit Pulpern zur Trennung der Grobstoffe aus der Suspension verwendeten Siebe sind entweder als Flachsieb (so etwa EP 0 520 172 B1 oder DE 195 06 084 A1) oder als zylindrisches Sieb (so z.B. EP 0 598 187 B1) ausgebildet.More so far in connection with pulpers for the separation of the Coarse particles from the suspension are used either as a flat screen (such as EP 0 520 172 B1 or DE 195 06 084 A1) or as a cylindrical sieve (e.g. EP 0 598 187 B1) trained.
Die Verwendung eines Flachsiebes führt dazu, daß die toroidale Strömung auf dem Sieb umgelenkt wird. Nachteilig ist dabei, daß die im Pulper vorhandenen nicht oder nur schwer zerfaserbaren Feststoffe, z.B. Steine, Glassplitter u.ä., auf diese Weise einen hohen Verschleiß des Siebes verursachen. Zudem besteht die Gefahr, daß sich die Sieblöcher zusetzen. Schwere Bestandteile aus dem Stoffgemisch haben die Tendenz, auf das Sieb zu sinken und dort liegenzubleiben, sofern sie nicht zerfasert werden und das Sieb nicht mit der Suspension passieren können. Eine gebräuchliche Methode, das Sieb von solchen Grobstoffen freizuhalten und den Durchgang für die Suspension zu gewährleisten, besteht darin, durch Räumleisten die Sieboberfläche immer wieder zu säubern. Diese Räumleisten unterliegen aber ebenfalls einem hohen Verschleiß.The use of a flat screen means that the toroidal Flow is deflected on the sieve. The disadvantage is that the existing in the pulper not or only with difficulty fiberizable solids, e.g. Stones, broken glass, etc., cause high strain on the screen. There is also a risk that the screen holes become clogged. Heavy components from the mixture of substances have Tendency to sink onto the sieve and stay there, as long as they are not frayed and the sieve is not of the suspension can happen. A common method to keep the sieve free of such coarse substances and the To ensure passage for the suspension is by clearing the screen surface again and again clean. These scraper bars are also subject to one high wear.
Die Verwendung eines zylindrischen Vertikalsiebes führt zu anderen Nachteilen. Die Suspension wird hier durch die senkrecht situierten Siebteile abgezogen. Die nicht zerfaserten Grobstoffe haben in diesem Fall die Tendenz, sich um das Sieb herum am Pulperboden zu sammeln und den Durchgang des Siebes auf diese Weise zu versperren. Die Strömungsverhältnisse im Pulper sind nicht geeignet, eine befriedigende Fortbewegung der Grobstoffe und damit eine Reinigung der Sieboberfläche herbeizuführen, da die Strömung die senkrechten Teile des Siebes nicht berührt. Auch hier kann das Sieb ausschließlich durch zusätzliche Maßnahmen, in der Regel durch den Einsatz von Räumleisten, gesäubert werden. Die sich um das Sieb herum am Pulperboden ansammelnden Grobstoffe tragen ebenfalls zu einem erhöhten Verschleiß bei. Der Einsatz von Räumleisten führt überdies zu einem weiteren wesentlichen Nachteil dadurch, daß die Räumleisten die im Abfall vorhandenen Plastikbestandteile stark zerkleinern. Diese kleinen Plastikpartikel können dann mit der Suspension das Lochsieb passieren. Sie verschmutzen so die für eine biologische Verwertung bestimmte Suspension und führen damit auch zu einem unerwünschten Verschmutzungsgrad der Endprodukte, vor allem des Kompostes und des Prozeßwassers.The use of a cylindrical vertical screen leads to other disadvantages. The suspension is here by the deducted vertically located sieve parts. They didn't fray In this case, coarse materials tend to look around collect the sieve around on the pulper bottom and the passage to block the sieve in this way. The flow conditions in the pulper are not suitable, a satisfactory Locomotion of the coarse materials and thus a cleaning of the Bring the sieve surface, since the flow the vertical Parts of the sieve are not touched. Here too it can Sieve only through additional measures, usually can be cleaned by using clearing bars. Those that accumulate around the sieve on the pulper base Coarse materials also contribute to increased wear at. The use of clearing strips also leads to a another major disadvantage in that the clearing bars severely crush the plastic components in the waste. These small plastic particles can then be used with the Suspension pass the perforated screen. So they pollute suspension intended for biological recovery and thus also lead to an undesirable degree of contamination of the end products, especially compost and process water.
Die Aufgabe der vorliegenden Erfindung besteht darin, die eingangs definierte Stofflösevorrichtung zum Trennen von Grobstoffen aus einer Suspension derart zu verbessern, daß sich der Verschleiß vermindert, die Räumung und die Wartung des Siebes erleichtern, der Durchfluß der Suspension beschleunigt und die Produktqualität verbessert wird.The object of the present invention is that Defined at the beginning for separating To improve coarse matter from a suspension in such a way that wear is reduced, clearance and maintenance lighten the sieve, the flow of the suspension accelerates and product quality is improved.
Erfindungsgemäß wird diese Aufgabe durch die im Patentanspruch 1 angegebene Stofflösevorrichtung gelöst. Die Unteransprüche geben weitere bevorzugte Weiterbildungen der Erfindung an. According to the invention this object is achieved in the claim 1 specified fabric release device solved. The subclaims give further preferred developments of the Invention.
Die der vorliegenden Erfindung zugrundeliegende Idee liegt darin, daß eine Siebvorrichtung eingesetzt wird, die die Form eines Kegelstumpfes aufweist. Der Kegelstumpf zeigt mit seiner kleineren Kreisfläche nach oben. Die Sieböffnungen sind auf der schrägen Mantelfläche des Kegelstumpfes angeordnet. Die Schräge ist so konzipiert, daß sie in etwa tangential bzw. parallel zur toroidalen Strömung liegt. Weiterhin ist die Siebvorrichtung segmentiert und von außen anbringbar.The idea underlying the present invention lies in that a screening device is used, which the Has the shape of a truncated cone. The truncated cone shows with its smaller circular area upwards. The sieve openings are on the sloping surface of the truncated cone arranged. The slope is designed to be roughly is tangential or parallel to the toroidal flow. Furthermore, the screening device is segmented and from the outside mountable.
Die Neigung bzw. Schräge beträgt vorzugsweise 30°-50°, wobei dieser Wert abhängig von der Form des Behälters variieren kann. Die schräge Anordnung hat zur Folge, daß die Strömung ständig dahin wirkt, daß die im Pulper absinkenden Grobstoffe von der Mantelfläche des Siebes entfernt werden, also von der Strömung mitgerissen werden. Dieser Vorgang wird durch den Gebrauch von Abstreifern noch begünstigt, welche allerdings einer geringeren Belastung als beim Stand der Technik unterliegen. Die Reinigung findet nämlich nicht, wie bei den dargestellten Flachsieben oder den zylindrischen Sieben, ausschließlich über die Räumleisten statt, sondern in erheblichem Maße über die Strömung.The inclination or slope is preferably 30 ° -50 °, whereby this value will vary depending on the shape of the container can. The oblique arrangement has the consequence that the Current constantly acts so that those sinking in the pulper Coarse materials are removed from the outer surface of the sieve, to be carried away by the current. This process is favored by the use of wipers, which, however, is less of a burden than at the stand subject to technology. The cleaning takes place not, as with the flat sieves shown or the cylindrical ones Seven, exclusively over the scraper bars instead, but to a significant extent on the flow.
Nachdem die Grobstoffe ständig mit der Strömung vom Sieb wegbewegt werden und sich daher weit weniger als bei den nach dem Stand der Technik verwendeten Siebvorrichtungen auf dem Sieb oder um das Sieb sammeln können, wird auch der durch Sand, Steinchen, Glas etc. verursachte Abrieb wesentlich reduziert. Durch die bessere Reinigung der Sieboberfläche wird ferner der Durchfluß durch das Sieb begünstigt und damit die Abzugszeit der Suspension verringert.After the coarse material flows with the flow from the sieve be moved away and therefore far less than with the Screening devices used according to the prior art can collect on the sieve or around the sieve Abrasion caused by sand, pebbles, glass etc. is significant reduced. By better cleaning the screen surface the flow through the sieve is also favored and thus the withdrawal time of the suspension is reduced.
Die Sieböffnungen können verschieden gestaltet sein, z.B. quadratisch, kreisförmig oder länglich, ausgebildet sein. Ihre charakteristischen Abmessungen betragen vorzugsweise 6-30 mm. Das Sieb ist vorzugsweise in Segmente unterteilt, um seinen Ausbau zu erleichtern.The screen openings can be designed differently, e.g. be square, circular or elongated. Their characteristic dimensions are preferably 6-30 mm. The sieve is preferably divided into segments, to facilitate its expansion.
Die zur Unterstützung der Reinigung der Sieblöcher von Grobschmutz eingesetzten Abstreifer sind vorzugsweise am Rotor bzw. dessen Welle befestigt und können ebenfalls unterschiedlichste Gestaltungen aufweisen. Sie können z.B. gerade oder schräg sein. Vorzugsweise sind die Abstreifer stetig oder unstetig strömungsabweisend gekrümmt und mit einer Verschleißleiste ausgestattet. Die Verschleißleiste ist vorzugsweise austauschbar und/oder verstellbar.The to support the cleaning of the sieve holes from Coarse dirt used wipers are preferably on Rotor or its shaft attached and can also be very different Have designs. You can e.g. be straight or oblique. The wipers are preferred steadily or discontinuously curved to prevent flow and with equipped with a wear bar. The wear bar is preferably interchangeable and / or adjustable.
Zum Abziehen der Suspension aus dem Pulper durch das Sieb wird vorzugsweise eine Pumpe eingesetzt, deren Antrieb regelbar ist, aber auch ein freier Ablauf in einen tiefergelegenen Speicherbehälter ist möglich.For pulling the suspension out of the pulper through the sieve a pump is preferably used, the drive of which can be regulated is, but also a free process in a lower one Storage tank is possible.
Die Erfindung ist insbesondere zum Einsatz im Rahmen der Aufbereitung und Trennung von Abfallgemischen mit einem hohen Organikanteil, z.B. von kommunalen Bioabfällen, geeignet. Diese Abfälle zeichnen sich neben biogen-organischen Bestandteilen, die sich für eine biologische Behandlung und anschließendes Recycling in den Naturkreislauf eignen, durch einen relevanten Anteil an nicht biogen-organischen Störstoffen, wie Kunststoffen, Steinen, Glas und Metallen aus.The invention is particularly suitable for use within the Processing and separation of waste mixtures with a high Organic content, e.g. of municipal bio-waste. These wastes stand out alongside biogenic-organic ones Ingredients that are suitable for biological treatment and subsequent recycling into the natural cycle, through a relevant proportion of non-biogenic organic Interfering substances such as plastics, stones, glass and metals out.
Nachstehend wird die vorliegende Erfindung anhand eines bevorzugten Anwendungsbeispiels unter Bezugnahme auf die begleitende Zeichnung näher erläutert.Hereinafter, the present invention will be preferred based on a preferred one Application example with reference to the accompanying Drawing explained in more detail.
Fig. 1a bis 1c zeigen eine schematische Darstellung einer Ausführungsform der erfindungsgemäßen Siebvorrichtung, und zwar Fig. 1a im Querschnitt, Fig. 1b im Schnitt entlang der Linie A-A' von Fig. 1a und Fig. 1c eine Ausschnittsvergrößerung des mit Z bezeichneten Bereichs.1a to 1c show a schematic representation of a Embodiment of the screening device according to the invention, and 1a in cross section, FIG. 1b in section along the Line A-A 'of Figures 1a and 1c is an enlarged detail of the area labeled Z.
Das Abfallgemisch wird dem zylindrischen Pulperbehälter 1 unter Zugabe von Wasser zugeführt. I bezeichnet die Abfallzuleitung und II die Wasserzuleitung.The waste mixture becomes the cylindrical pulper container 1 fed with the addition of water. I denotes the waste supply line and II the water supply.
Durch Drehungen des Rotors 2 um die Behälterachse R wird
das Abfall-Wasser-Gemisch in Bewegung versetzt. Es wird eine
starke toroidale Strömung 3 erzeugt, die dazu führt, daß
die biogen-organischen nicht verholzten Bestandteile des
Abfalls zerfasert werden. Diese Fasern bilden mit der im
Pulper vorhandenen Flüssigkeit eine Suspension, die durch
das im unteren Teil des Pulpers befindliche kegelstumpfförmige
Lochsieb 4 abgezogen wird und aus dem Ausfluß III
strömt, an den ggfs. eine (nicht gezeigte) Pumpe anschließbar
ist. Zurück im Pulperbehälter 1 bleiben die nicht biogen-organischen
und die verholzten Bestandteile des Abfalls,
die durch die Strömungskräfte weitgehend unzerstört
bleiben, d.h. die Grobstoffe.By rotating the
Die erzeugte und durch das Lochsieb abgetrennte Suspension, in der die biologisch verwertbaren Bestandteile aufkonzentriert sind, kann dann der biologischen Verwertung zugeführt werden, während die biologisch nicht verwertbaren Bestandteile, also die Grobstoffe, die nach dem Abzug der Suspension im Pulper verbleiben, einer anderen angemessenen Verwertungsform oder einer anderweitigen Entsorgung zugeleitet werden können.The suspension generated and separated by the sieve, in which the biologically usable constituents are concentrated are then sent for biological recycling while the biologically unusable components, that is, the coarse matter that after deducting the Suspension remain in the pulper, another appropriate one Form of recovery or other disposal can be.
Die hier beschriebene Ausführungsform der erfindungsgemäßen
Siebvorrichtung 4 hat die Form eines Kegelstumpfes. Die
Sieböffnungen befinden sich an der Mantelfläche 5 des Kegelstumpfes,
sind rund und weisen einen Durchmesser von typischerweise
10 mm auf. Die Neigung der äußeren Siebfläche
beträgt ca. 30° bis 50° gegenüber der Rotationsachse R.The embodiment of the invention described here
Screening
Wie insbesondere aus Fig. lb ersichtlich, sind am Rotor 2
bzw. der Rotorwelle sind Abstreifer 6 befestigt, die strömungsabweisend
bogenförmig gekrümmt sind. Die Vorderseite
der Abstreifer 6 ist durch ein austausch- und verstellbares
Verschleißschild 6a geschützt. Unterhalb des Auslasses III
befindet sich ein (nicht gezeigter) Auffangbehälter, in dem
die ablaufende Suspension aufgefangen wird. As can be seen in particular from FIG. 1b, the
Wie in Fig. 1c erkennbar, sind die Siebsegmente des Siebes
4 von der Behälteraußenseite her mit Schrauben 8 an Stegen
9 derart befestigt, daß sie bei gelösten Schrauben 8 von
der Behälterinnenseite her abnehmbar sind.As can be seen in Fig. 1c, the sieve segments of the
Obwohl die vorliegende Erfindung vorstehend anhand eines bevorzugten Ausführungsbeispiels beschrieben wurde, ist sie darauf nicht beschränkt, sondern auf vielfältige Art und Weise modifizierbar.Although the present invention has been described above in terms of preferred embodiment has been described, it is not limited to this, but in a variety of ways and Modifiable.
Claims (10)
- A pulper comprising a vessel (1), in which an annular flow acting on a liquid-solid mixture located in said vessel (1) and effecting a pulping of the same can be generated, a screening device (4) for separating coarse materials from the suspension, wherein the screening device (4) has the shape of a truncated cone being provided with holes on the lateral surface thereof and being mounted at the base of the vessel (1), and the truncated cone facing upwardly with the smaller circular surface thereof and the lateral surface lying in an approximately tangential manner to the toroidal flow, characterised in that the screening device (4) is sub-divided into different segments and that these segments are individually attached from the external side of the vessel and are detachable from the internal side of the vessel.
- The pulper according to claim 1, characterized in that the inclination of the lateral surface is between 30° and 50°.
- The pulper according to claim 1 or 2, characterized in that the screen holes have a square, circular or oblong shape.
- The pulper according to one of the preceding claims, characterized in that the characteristic dimensions of the screen holes are 6 - 30 mm.
- The pulper according to one of the preceding claims,
characterized in that the screen holes are circular and preferably have a diameter of 8 - 12 mm. - The pulper according to one of the preceding claims,
characterized in that a rotor device (2) is provided in the vessel (1) and that the truncated cone is mountable essentially parallel to the rotor axis. - The pulper according to one of the preceding claims,
characterized in that a scraping device (6) is provided, which is preferably rotatably connected to the rotor device (2), and that the screen surface provided with holes is cleanable by the scraping device (6). - The pulper according to claim 7, characterized in that the scraping device (6) comprises one or more scrapers having a continuous or discontinuous curvature against the flow.
- The pulper according to claim 8, characterized in that the scrapers are provided with an exchangeable and/or adjustable war shield on the front face thereof.
- The pulper according to one of the preceding claims,
characterized in that the suspension can be drawn off through the screening device (4) by means of a pump provided with a controllable drive.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19824806 | 1998-06-03 | ||
| DE19824806A DE19824806A1 (en) | 1998-06-03 | 1998-06-03 | Screening device and fabric dissolving device using this |
| PCT/EP1999/003852 WO1999063148A1 (en) | 1998-06-03 | 1999-06-02 | Pulper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1084290A1 EP1084290A1 (en) | 2001-03-21 |
| EP1084290B1 true EP1084290B1 (en) | 2002-08-28 |
Family
ID=7869782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99927861A Expired - Lifetime EP1084290B1 (en) | 1998-06-03 | 1999-06-02 | Pulper |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US6379505B1 (en) |
| EP (1) | EP1084290B1 (en) |
| JP (1) | JP3608652B2 (en) |
| KR (1) | KR100516364B1 (en) |
| AT (1) | ATE222970T1 (en) |
| BR (1) | BR9910855B1 (en) |
| CA (1) | CA2333640C (en) |
| CZ (1) | CZ291696B6 (en) |
| DE (2) | DE19824806A1 (en) |
| ES (1) | ES2183571T3 (en) |
| PL (1) | PL189958B1 (en) |
| WO (1) | WO1999063148A1 (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19829648C2 (en) * | 1998-07-02 | 2000-06-29 | Recycling Energie Abfall | Coarse dirt trap device for lifting the coarse material out of a pulper |
| US7985577B2 (en) * | 2003-04-30 | 2011-07-26 | Recology, Inc. | Systems and processes for treatment of organic waste materials with a biomixer |
| US8809038B1 (en) | 2003-04-30 | 2014-08-19 | Recology Inc. | Process for treatment of organic waste materials |
| US20050224610A1 (en) * | 2004-01-13 | 2005-10-13 | Egan John J Iii | Pulper rotor and assembly |
| US20060065608A1 (en) * | 2004-09-29 | 2006-03-30 | Choate Chris E | Process and apparatus for generating useful biomass from organic waste streams |
| CN1332092C (en) * | 2005-02-23 | 2007-08-15 | 李风宁 | Hydraulic pulp kneader rotor |
| US20070231885A1 (en) * | 2005-12-09 | 2007-10-04 | Norcal Waste Systems, Inc. | Biomechanical device for producing a biomass |
| US7955839B2 (en) | 2006-06-23 | 2011-06-07 | Recology Inc. | Systems and methods for converting organic waste materials into useful products |
| US7410583B2 (en) * | 2006-08-10 | 2008-08-12 | East Bay Municipal Utility District | Process of treating organic waste for anaerobic digestion |
| JP4906593B2 (en) * | 2007-05-23 | 2012-03-28 | ボイス パテント ゲーエムベーハー | Waste paper cutting rotor screen plate |
| US7811456B2 (en) * | 2007-10-11 | 2010-10-12 | Recology Inc. | Systems and methods for combining and converting solid and liquid organic waste materials into useful products |
| WO2009153384A1 (en) * | 2008-06-16 | 2009-12-23 | Tampulping Oy | A pulper treating fiber mass |
| FI122071B (en) * | 2009-05-19 | 2011-08-15 | Tampulping Oy | Processor handling fiber pulp |
| JP5730049B2 (en) * | 2011-02-07 | 2015-06-03 | 相川鉄工株式会社 | Pulper |
| SE538980C2 (en) * | 2013-05-07 | 2017-03-14 | Valmet Oy | An apparatus for separating particles in a pulp suspension |
| JP6876210B2 (en) * | 2016-12-29 | 2021-05-26 | デュプロ精工株式会社 | Recycled pulp manufacturing equipment and recycled paper recycling equipment |
| CN108457108A (en) * | 2018-03-20 | 2018-08-28 | 张海军 | A kind of broken pulp grinder of toilet paper production |
| CN110714354A (en) * | 2019-10-31 | 2020-01-21 | 佛山市拓昕包装有限公司 | Papermaking beating equipment with filtering capability |
| FI12965Y1 (en) * | 2020-03-24 | 2021-05-31 | Voith Patent Gmbh | Pulper |
| CN111774136B (en) * | 2020-06-08 | 2021-06-25 | 河南省阳光防腐涂装有限公司 | Waste coating recovery device and use method thereof |
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| US1690496A (en) * | 1927-06-07 | 1928-11-06 | Frank E Marcy | Mill |
| US1753355A (en) * | 1928-04-10 | 1930-04-08 | Stine Samuel Blaine | Screen structure |
| US2661666A (en) * | 1949-02-01 | 1953-12-08 | William V Knoll | Apparatus for pulping papermaking material |
| DE964286C (en) | 1953-03-31 | 1957-05-23 | Doerries A G Vorm Maschinenfab | Device for dissolving fibrous material suspended in water, especially unsorted waste paper |
| AT235677B (en) | 1962-11-09 | 1964-09-10 | Otto Koudelka | Device for chipping and defibrating difficult to digest materials |
| US3525477A (en) * | 1967-09-07 | 1970-08-25 | Tadashi Kobayashi | Device for fine screening of paper stock |
| FR2070993A5 (en) * | 1969-12-15 | 1971-09-17 | Marcovitch Salomon | Paper stock triturator |
| US3656528A (en) * | 1970-02-19 | 1972-04-18 | Int Machinery Corp Sa | Pulping and finishing apparatus |
| US3989197A (en) * | 1971-08-12 | 1976-11-02 | J. M. Voith Gmbh | Apparatus for pulping and grading of waste paper |
| CH568446A5 (en) * | 1973-08-27 | 1975-10-31 | Escher Wyss Gmbh | |
| CH568447A5 (en) * | 1973-09-11 | 1975-10-31 | Escher Wyss Gmbh | |
| NL165519C (en) * | 1974-07-06 | 1981-04-15 | Gerhard Husmann | DEVICE FOR CUTTING PAPER. |
| DE2613062B2 (en) * | 1976-03-26 | 1979-03-01 | Polysius Ag, 4720 Beckum | Lifting wall |
| CH613239A5 (en) * | 1976-10-19 | 1979-09-14 | Escher Wyss Gmbh | |
| US4216918A (en) * | 1976-12-08 | 1980-08-12 | Escher Wyss Gmbh | Fiberizer |
| CH613240A5 (en) * | 1976-12-08 | 1979-09-14 | Escher Wyss Gmbh | Pulper for pulping and sorting waste paper |
| AT365676B (en) * | 1979-05-04 | 1982-02-10 | Escher Wyss Gmbh | PLANT FOR TREATING WASTE PAPER |
| AT370795B (en) * | 1979-10-10 | 1983-05-10 | Escher Wyss Gmbh | METHOD FOR OPERATING A PLANT FOR PROCESSING WASTE PAPER AND PLANT FOR IMPLEMENTING THE METHOD |
| SU922212A1 (en) * | 1980-07-02 | 1982-04-23 | Ленинградский технологический институт целлюлозно-бумажной промышленности | Waste paper hydraulic breaker |
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| DE4235119C1 (en) * | 1992-10-17 | 1994-04-21 | Lohse Verwaltungs Gmbh | Fiber dissolver, especially for dissolving household waste |
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-
1998
- 1998-06-03 DE DE19824806A patent/DE19824806A1/en not_active Withdrawn
-
1999
- 1999-06-02 PL PL99344680A patent/PL189958B1/en unknown
- 1999-06-02 US US09/701,475 patent/US6379505B1/en not_active Expired - Lifetime
- 1999-06-02 CA CA002333640A patent/CA2333640C/en not_active Expired - Lifetime
- 1999-06-02 KR KR10-2000-7013732A patent/KR100516364B1/en not_active IP Right Cessation
- 1999-06-02 BR BRPI9910855-0A patent/BR9910855B1/en not_active IP Right Cessation
- 1999-06-02 JP JP2000552336A patent/JP3608652B2/en not_active Expired - Fee Related
- 1999-06-02 ES ES99927861T patent/ES2183571T3/en not_active Expired - Lifetime
- 1999-06-02 EP EP99927861A patent/EP1084290B1/en not_active Expired - Lifetime
- 1999-06-02 AT AT99927861T patent/ATE222970T1/en active
- 1999-06-02 WO PCT/EP1999/003852 patent/WO1999063148A1/en active IP Right Grant
- 1999-06-02 DE DE59902475T patent/DE59902475D1/en not_active Expired - Lifetime
- 1999-06-02 CZ CZ20004467A patent/CZ291696B6/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US6379505B1 (en) | 2002-04-30 |
| DE19824806A1 (en) | 1999-12-09 |
| WO1999063148A1 (en) | 1999-12-09 |
| PL344680A1 (en) | 2001-11-19 |
| KR100516364B1 (en) | 2005-09-26 |
| DE59902475D1 (en) | 2002-10-02 |
| CZ20004467A3 (en) | 2001-04-11 |
| ES2183571T3 (en) | 2003-03-16 |
| CA2333640A1 (en) | 1999-12-09 |
| BR9910855B1 (en) | 2010-09-21 |
| JP2002517620A (en) | 2002-06-18 |
| KR20010052565A (en) | 2001-06-25 |
| CA2333640C (en) | 2006-11-14 |
| ATE222970T1 (en) | 2002-09-15 |
| BR9910855A (en) | 2001-03-06 |
| CZ291696B6 (en) | 2003-05-14 |
| EP1084290A1 (en) | 2001-03-21 |
| JP3608652B2 (en) | 2005-01-12 |
| PL189958B1 (en) | 2005-10-31 |
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