EP1087055A1 - Hydrocyclone plant - Google Patents

Hydrocyclone plant Download PDF

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Publication number
EP1087055A1
EP1087055A1 EP00116473A EP00116473A EP1087055A1 EP 1087055 A1 EP1087055 A1 EP 1087055A1 EP 00116473 A EP00116473 A EP 00116473A EP 00116473 A EP00116473 A EP 00116473A EP 1087055 A1 EP1087055 A1 EP 1087055A1
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EP
European Patent Office
Prior art keywords
distribution
plant according
connections
hydrocyclone
collection device
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Granted
Application number
EP00116473A
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German (de)
French (fr)
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EP1087055B1 (en
Inventor
Wolfgang Mannes
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Voith Patent GmbH
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Voith Paper Patent GmbH
Voith Sulzer Papiertechnik Patent GmbH
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Publication of EP1087055A1 publication Critical patent/EP1087055A1/en
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    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21DTREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/18Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force
    • D21D5/24Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force in cyclones
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04CAPPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00Apparatus in which the axial direction of the vortex is reversed
    • B04C5/24Multiple arrangement thereof
    • B04C5/28Multiple arrangement thereof for parallel flow

Definitions

  • the invention relates to a hydrocyclone system with several hydrocyclones according to the Preamble of claim 1.
  • hydrocyclones are used to move liquids containing substances from different sinking behavior due to strong centrifugal forces fractionate. So it is e.g. possible in a fiber suspension, such as for Production of paper is used to concentrate and contain contaminants derived from the hydrocyclone by a reject connection. That of contaminants The exempt fraction, namely the accept, is led through the accept connection and further used.
  • These processes are known per se, as is the fact that a good effect is only guaranteed if the hydrocyclones are not of a certain size exceed. In the case of a hydrocyclone system designed for larger throughputs is designed, therefore, a plurality - often even a large number - of hydrocyclones needed.
  • the liquid to be cleaned then flows through them in parallel, which means that the liquid flow into a variety of smaller sub-flows must be divided. For this, e.g. Distribution devices as follows still to be used.
  • a convenient distribution device is usually to be created so that the Distribution of liquid flows is even.
  • hydraulic Disruptions, eddies or the like can be avoided.
  • Another requirement Hydrocyclone plants of this type is their simplicity to manufacture them at low cost can.
  • the hydrocyclones should also be easily accessible and easy to maintain for maintenance purposes to be swapped. The fulfillment of all these requirements is with the existing ones Systems not solved satisfactorily.
  • EP 0 658 648 A A system is known from EP 0 658 648 A in which a number of hydrocyclones is arranged approximately in a star shape around a hydraulic vibration damper.
  • the Vibration dampers are known to be complex to build and operate. Also one other equipment shown in US 4,267,048 is complicated and requires a high one Manufacturing and assembly costs.
  • the object of the invention is therefore to create a hydrocyclone plant, with the simple distribution of an even distribution of those to be treated Liquid can be applied to the hydrocyclones.
  • the distribution device designed according to the invention contains e.g. a relatively large one cylindrical tube or an oval flow part. This is described by the Partition into an inlet and an accept material room or in other cases in one Inlet and divided into a reject space.
  • the flow part with the partition can easily created as a fully assembled unit and then with the openings for the Hydrocyclone connections are provided. In practice this is of great advantage because the introduction of two openings provided for a hydrocyclone in one Operation can take place, i.e. without moving the tool (e.g. the Laser cutter). Dimensional deviations are then much smaller than with tailors on separate pipes.
  • the inflowing liquid e.g. a fiber suspension
  • the inflowing liquid e.g. a fiber suspension
  • the backflow into the downstream of the partition Space of the distribution device is advantageously through the light material connection of the Hydrocyclones. In most cases this is close to the inlet connection.
  • connections between the Flow part and the hydrocyclones designed as sealed plug connections his. This allows easy assembly or replacement of hydrocyclones. This type of connection is also inexpensive.
  • the structure of the system is simple and clear. It is also easily possible to keep the main stream of liquids in maintain its direction; i.e. that the inflow and the accept or reject flow have the same direction.
  • the hydrocyclone system shown in FIG. 1 receives the suspension to be cleaned a large inlet line, which in the distribution and collection device 5 from below flows into.
  • This consists essentially of a cylindrical side wall 7 and is divided by a partition 9 transverse to the direction of flow. Upstream to this Partition 9, i.e. So on the inlet side, there are a number of openings 11 for Admission of the inlet connections 2 to the side of the distribution and collecting device 5 arranged hydrocyclones 1.
  • the hydrocyclone 1 contains a central axis 10 which arranged parallel to the cylindrical side wall 7 and thus to the flow direction 6 is.
  • the hydrocyclone 1 is constructed in such a way that the light part fraction is transferred as a good substance the accept material connection 3 is discharged.
  • the openings 12 in the cylindrical side wall 7 are located downstream of the partition 9. On this The side wall 7 is shown cut.
  • the center lines 18 of the Inlet connection 2 and the center line 19 of the accept material connection 3 are in here mutually parallel planes, which in turn are perpendicular to the flow direction 6 in the Distribution and collecting device 5 are. This leads to a particularly simple one Structure of the distribution and collection device 5, and the openings 11 and 12 can can be easily attached.
  • the levels have a relatively small distance 20, preferably not more than 1.5 m. It can also be seen that the openings 11 and 12 are arranged on the same circumference 13 and 14, respectively.
  • the construction of the hydrocyclone system shown in FIG. 1 is particularly simple. But there are deviations from this arrangement are easily conceivable.
  • the Distribution device may also be oval or have a polygonal plan.
  • the partition 9 obliquely so that it forms an angle ⁇ to Forms flow direction 6, which deviates from 90 °.
  • the openings are located 11 or 12 with advantage on imaginary levels that are parallel to the partition 9.
  • FIG. 2 schematically shows a hydrocyclone system according to the invention in a view from above.
  • the principle of the presented invention enables a very simple even Distribution of the liquids in that the hydrocyclones 1 radiate with equal distance around the cylindrical side wall of the distribution device here are arranged.
  • the partition not visible here lies horizontally between the Inlet connections 2 and the accept connections 3.
  • Hydrocyclones can also be used so that the heavy fraction as a good and the light fraction is used as a reject. With such an application e.g. Specifically light contaminants separated from a paper fiber suspension.
  • a system according to the invention can be used by connecting the accept material (3) 1 or 2 serves as reject connection. The accepted material then falls at the outlet for the Heavy fraction.
  • Such circuits are known per se and therefore not here specially illustrated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cyclones (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

A hydrocyclone installation with multiple hydrocyclones (1), each having a feed (2), a liquid product outlet (3) and a solids discharge outlet-connection (4), comprises a distribution device (5) for directing / taking off liquid , to / from, the individual hydrocyclones (1). The distribution device (5) has a flow section enclosed by a preferably cylindrical wall (7), with apertures (11) provided for the liquid feed (2) and product outlet (3) connections or for the solids rejection connection (4). The distribution (5) also contains a divider plate (9) which controls the flow area of the distribution device, and the feed connection is positioned upstream of, and the product (3) or rejection (4) connections are positioned to discharge downstream of the divider plate. The flow direction (6) is normally vertically upwards within the distribution section (5) and the divider plate (9) is arranged at an angle of 60 - 90 degrees to the flow direction.

Description

Die Erfindung betrifft eine Hydrozyklonanlage mit mehreren Hydrozyklonen gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a hydrocyclone system with several hydrocyclones according to the Preamble of claim 1.

Bekanntlich werden Hydrozyklone verwendet, um Flüssigkeiten, in denen sich Stoffe von unterschliedlichem Sinkverhalten befinden, durch starke Zentrifugalkräfte zu fraktionieren. So ist es z.B. möglich, die in einer Faserstoffsuspension, wie sie zur Erzeugung von Papier verwendet wird, enthaltenen Störstoffe aufzukonzentrieren und durch einen Rejektanschluss aus dem Hydrozyklon abzuleiten. Die von Störstoffen befreite Fraktion, nämlich der Gutstoff, wird durch den Gutstoffanschluss geführt und weiter verwendet. Diese Vorgänge sind an sich bekannt, ebenso die Tatsache, dass ein guter Effekt nur gewährleistet ist, wenn die Hydrozyklone eine bestimmte Größe nicht überschreiten. Bei einer Hydrozyklonanlage, die für größere Durchsatzmengen ausgelegt ist, wird daher eine Mehrzahl - oft sogar eine Vielzahl - von Hydrozyklonen benötigt. Diese werden dann parallel von der zu reinigenden Flüssigkeit durchströmt, was bedeutet, dass der Flüssigkeitsstrom in eine Vielzahl von kleineren Teilströmen aufgeteilt werden muß. Hierzu können z.B. Verteilvorrichtungen, wie sie im folgenden noch beschrieben werden, verwendet werden.As is known, hydrocyclones are used to move liquids containing substances from different sinking behavior due to strong centrifugal forces fractionate. So it is e.g. possible in a fiber suspension, such as for Production of paper is used to concentrate and contain contaminants derived from the hydrocyclone by a reject connection. That of contaminants The exempt fraction, namely the accept, is led through the accept connection and further used. These processes are known per se, as is the fact that a good effect is only guaranteed if the hydrocyclones are not of a certain size exceed. In the case of a hydrocyclone system designed for larger throughputs is designed, therefore, a plurality - often even a large number - of hydrocyclones needed. The liquid to be cleaned then flows through them in parallel, which means that the liquid flow into a variety of smaller sub-flows must be divided. For this, e.g. Distribution devices as follows still to be used.

Eine zweckmäßige Verteilvorrichtung ist in der Regel so zu erstellen, dass die Verteilung der Flüssigkeitsströme gleichmäßig ist. Außerdem sollen hydraulische Störungen, Wirbel oder ähnliches vermieden werden. Eine weitere Anforderung an Hydrozyklonanlagen dieser Art ist ihre Einfachheit, um sie kostengünstig herstellen zu können. Auch sollen die Hydrozyklone zu Wartungszwecken gut zugänglich und leicht zu tauschen sein. Die Erfüllung aller dieser Forderungen ist bei den bisher vorhandenen Anlagen nicht befriedigend gelöst. A convenient distribution device is usually to be created so that the Distribution of liquid flows is even. In addition, hydraulic Disruptions, eddies or the like can be avoided. Another requirement Hydrocyclone plants of this type is their simplicity to manufacture them at low cost can. The hydrocyclones should also be easily accessible and easy to maintain for maintenance purposes to be swapped. The fulfillment of all these requirements is with the existing ones Systems not solved satisfactorily.

Aus der EP 0 658 648 A ist eine Anlage bekannt, bei der eine Anzahl von Hydrozyklonen um einen hydraulischen Schwingungsdämpfer etwa sternförmig angeordnet ist. Der Schwingungsdämpfer ist bekanntlich aufwendig zu bauen und zu betreiben. Auch eine andere in der US 4,267,048 gezeigte Anlage ist kompliziert und erfordert einen hohen Aufwand bei der Herstellung und Montage.A system is known from EP 0 658 648 A in which a number of hydrocyclones is arranged approximately in a star shape around a hydraulic vibration damper. The Vibration dampers are known to be complex to build and operate. Also one other equipment shown in US 4,267,048 is complicated and requires a high one Manufacturing and assembly costs.

Der Erfindung liegt daher die Aufgabe zu Grunde, eine Hydrozyklonanlage zu schaffen, bei der mit einfachen Mitteln eine gleichmäßige Verteilung der zu behandelnden Flüssigkeit auf die Hydrozyklone erfolgen kann.The object of the invention is therefore to create a hydrocyclone plant, with the simple distribution of an even distribution of those to be treated Liquid can be applied to the hydrocyclones.

Diese Aufgabe wird durch die im Kennzeichen des Anspruchs 1 genannten Maßnahmen gelöst.This object is achieved by the measures mentioned in the characterizing part of claim 1 solved.

Die erfindungsgemäß gestaltete Verteilvorrichtung enthält z.B. ein relativ großes zylindrisches Rohr oder ein ovales Strömungsteil. Dieses wird durch die beschriebene Trennwand in einen Zulauf- und in einen Gutstoffraum oder in anderen Fällen in einen Zulauf- und in einen Rejektraum geteilt. Das Strömungsteil mit der Trennwand kann leicht als fertig montierte Einheit erstellt und anschließend mit den Öffnungen für die Hydrozyklon-Anschlüsse versehen werden. In der Praxis ist das von großem Vorteil, da die Einbringung zweier für einen Hydrozyklon vorgesehenen Öffnungen in einem Arbeitsvorgang erfolgen kann, also ohne Versetzen des Werkzeuges (z.B. des Laser-Schneiders). Maßabweichungen sind dann sehr viel geringer als bei Schneidern an getrennten Rohrleitungen.The distribution device designed according to the invention contains e.g. a relatively large one cylindrical tube or an oval flow part. This is described by the Partition into an inlet and an accept material room or in other cases in one Inlet and divided into a reject space. The flow part with the partition can easily created as a fully assembled unit and then with the openings for the Hydrocyclone connections are provided. In practice this is of great advantage because the introduction of two openings provided for a hydrocyclone in one Operation can take place, i.e. without moving the tool (e.g. the Laser cutter). Dimensional deviations are then much smaller than with tailors on separate pipes.

Aus dem Zulaufraum wird die anströmende Flüssigkeit, z.B. eine Faserstoffsuspension, gleichmäßig auf die angeschlossenen Hydrozyklone verteilt. Mit dieser einfachen Maßnahme ist die mengengleiche Versorgung der einzelnen Hydrozyklone möglich. Das gilt besonders, wenn gleiche Hydrozyklone gleichmäßig am Umfang des Strömungsteiles angeordnet sind. Das Zurückströmen in den stromabwärts der Trennwand gelegenen Raum der Verteilvorrichtung erfolgt mit Vorteil durch den Leichtstoffanschluss des Hydrozyklons. Dieser liegt in den meisten Fällen nahe dem Zulaufanschluss.The inflowing liquid, e.g. a fiber suspension, evenly distributed over the connected hydrocyclones. With this simple Measure is the equal supply of the individual hydrocyclones possible. The applies especially when the same hydrocyclones are evenly distributed around the circumference of the flow section are arranged. The backflow into the downstream of the partition Space of the distribution device is advantageously through the light material connection of the Hydrocyclones. In most cases this is close to the inlet connection.

In speziellen vorteilhaften Ausgestaltungen können die Anschlüsse zwischen dem Strömungsteil und den Hydrozyklonen als abgedichtete Steckverbindungen ausgeführt sein. Das läßt eine leichte Montage bzw. ein leichtes Auswechseln von Hydrozyklonen zu. Außerdem ist diese Art der Verbindung kostengünstig. Der Aufbau der Anlage ist einfach und übersichtlich. Es ist auch leicht möglich, den Hauptstrom der Flüssigkeiten in seiner Richtung beizubehalten; d.h. dass Zulaufstrom und Gutstoff- bzw. Rejektstrom die gleiche Richtung haben.In special advantageous embodiments, the connections between the Flow part and the hydrocyclones designed as sealed plug connections his. This allows easy assembly or replacement of hydrocyclones. This type of connection is also inexpensive. The structure of the system is simple and clear. It is also easily possible to keep the main stream of liquids in maintain its direction; i.e. that the inflow and the accept or reject flow have the same direction.

Die Erfindung und ihre Vorteile werden beschrieben an Hand von Zeichnungen. Dabei zeigt:

Fig. 1
eine exemplarische Ausführungsform der erfindungsgemäßen Hydrozyklonanlage in Seitenansicht;
Fig. 2
eine erfindungsgemäße Hydrozyklonanlage in Aufsicht von oben.
The invention and its advantages are described with reference to drawings. It shows:
Fig. 1
an exemplary embodiment of the hydrocyclone plant according to the invention in side view;
Fig. 2
a hydrocyclone system according to the invention in supervision from above.

Die in der Fig. 1 gezeigte Hydrozyklonanlage erhält die zu reinigende Suspension durch eine große Zulaufleitung, welche in die Verteil- und Sammelvorrichtung 5 von unten einmündet. Diese besteht im wesentlichen aus einer zylindrischen Seitenwand 7 und ist durch eine Trennwand 9 quer zur Strömungsrichtung geteilt. Stromaufwärts zu dieser Trennwand 9, d.h. also zulaufseitig, befindet sich eine Anzahl von Öffnungen 11 zur Aufnahme der Zulaufanschlüsse 2 der seitlich zur Verteil- und Sammelvorrichtung 5 angeordneten Hydrozyklone 1. In dieser Figur ist lediglich einer der Hydrozyklone 1 gezeichnet. In der Regel sind die Hydrozyklone 1, die bei einer solchen Anlage verwendet werden, untereinander gleich. Der Hydrozyklon 1 enthält eine Mittelachse 10, welche parallel zur zylindrischen Seitenwand 7 und damit zur Strömungsrichtung 6 angeordnet ist. Der Hydrozyklon 1 ist so aufgebaut, dass die Leichtteil-Fraktion als Gutstoff über den Gutstoffanschluss 3 abgeführt wird. Die dazu dienenden Öffnungen 12 in der zylindrischen Seitenwand 7 befinden sich stromabwärts der Trennwand 9. An dieser Stelle ist die Seitenwand 7 geschnitten gezeichnet. Die Mittellinien 18 des Zulaufanschlusses 2 und die Mittellinie 19 des Gutstoffanschlusses 3 liegen hier in zueinander parallelen Ebenen, die wiederum senkrecht zur Strömungsrichtung 6 in der Verteil- und Sammelvorrichtung 5 stehen. Das führt zu einem besonders einfachen Aufbau der Verteil- und Sammelvorrichtung 5, und die Öffnungen 11 und 12 können leicht angebracht werden. Die Ebenen haben einen relativ geringen Abstand 20, vorzugsweise nicht mehr als 1,5 m. Man erkennt auch, dass die Öffnungen 11 und 12 jeweils auf demselben Umfang 13 bzw. 14 angeordnet sind. Dort wo der Hydrozyklon in die Öffnungen 11, 12 mündet, sind elastische Dichtelemente 15 eingesetzt. Zu seiner mechanischen Befestigung dient ein nur angedeuteter Halter 17. Diese Form erspart z.B. verschraubte Flansche und ermöglicht es außerdem, die nicht ganz auszuschließenden Toleranzen bei der Herstellung der Hydrozyklone bzw. Hydrozyklonanlage auszugleichen. Die Rejekt-Fraktion, also die Schwerteile, werden durch den Rejektanschluss 4 in eine Rejektleitung 16 abgeleitet.The hydrocyclone system shown in FIG. 1 receives the suspension to be cleaned a large inlet line, which in the distribution and collection device 5 from below flows into. This consists essentially of a cylindrical side wall 7 and is divided by a partition 9 transverse to the direction of flow. Upstream to this Partition 9, i.e. So on the inlet side, there are a number of openings 11 for Admission of the inlet connections 2 to the side of the distribution and collecting device 5 arranged hydrocyclones 1. In this figure, only one of the hydrocyclones 1 drawn. As a rule, the hydrocyclones 1 are used in such a system become equal to each other. The hydrocyclone 1 contains a central axis 10 which arranged parallel to the cylindrical side wall 7 and thus to the flow direction 6 is. The hydrocyclone 1 is constructed in such a way that the light part fraction is transferred as a good substance the accept material connection 3 is discharged. The openings 12 in the cylindrical side wall 7 are located downstream of the partition 9. On this The side wall 7 is shown cut. The center lines 18 of the Inlet connection 2 and the center line 19 of the accept material connection 3 are in here mutually parallel planes, which in turn are perpendicular to the flow direction 6 in the Distribution and collecting device 5 are. This leads to a particularly simple one Structure of the distribution and collection device 5, and the openings 11 and 12 can can be easily attached. The levels have a relatively small distance 20, preferably not more than 1.5 m. It can also be seen that the openings 11 and 12 are arranged on the same circumference 13 and 14, respectively. Where the hydrocyclone in the openings 11, 12 opens, elastic sealing elements 15 are used. To his mechanical attachment is provided by a holder 17, which is only indicated, and this shape saves e.g. screwed flanges and also allows the not entirely excluded Compensate tolerances in the manufacture of the hydrocyclones or hydrocyclone system. The reject fraction, i.e. the heavy parts, are converted into a through the reject connection 4 Reject line 16 derived.

Der in Fig. 1 gezeigte Aufbau der Hydrozyklonanlage ist besonders einfach. Es sind aber ohne weiteres Abweichungen von dieser Anordnung vorstellbar. So kann z.B. die Verteilvorrichtung auch oval sein oder einen polygonförmigen Grundriss haben. Es ist auch denkbar, die Trennwand 9 schräg anzuordnen, so dass sie einen Winkel α zur Strömungsrichtung 6 bildet, der von 90° abweicht. In diesem Falle liegen die Öffnungen 11 bzw. 12 mit Vorteil auf gedachten Ebenen, die parallel zur Trennwand 9 sind.The construction of the hydrocyclone system shown in FIG. 1 is particularly simple. But there are deviations from this arrangement are easily conceivable. For example, the Distribution device may also be oval or have a polygonal plan. It is also conceivable to arrange the partition 9 obliquely so that it forms an angle α to Forms flow direction 6, which deviates from 90 °. In this case, the openings are located 11 or 12 with advantage on imaginary levels that are parallel to the partition 9.

Die Figur 2 zeigt schematisch eine erfindungsgemäße Hydrozyklonanlage in Ansicht von oben. Das Prinzip der vorgelegten Erfindung ermöglicht eine sehr einfache gleichmäßge Verteilung der Flüssigkeiten dadurch, dass die Hydrozyklone 1 strahlenförmig mit gleichem Abstand um die hier zylindrische Seitenwand der Verteilvorrichtung herum angeordnet sind. Die hier nicht sichtbare Trennwand liegt waagerecht zwischen den Zulaufanschlüssen 2 und den Gutstoffanschlüssen 3.FIG. 2 schematically shows a hydrocyclone system according to the invention in a view from above. The principle of the presented invention enables a very simple even Distribution of the liquids in that the hydrocyclones 1 radiate with equal distance around the cylindrical side wall of the distribution device here are arranged. The partition not visible here lies horizontally between the Inlet connections 2 and the accept connections 3.

Hydrozyklone können auch so eingesetzt werden, daß die Schwerfraktion als Gutstoff und die Leichtfraktion als Rejekt verwendet wird. Mit einer solchen Anwendung werden z.B. spezifisch leichte Störstoffe aus einer Papierfasersuspension abgeschieden. Auch hierzu kann eine erfindungsgemäße Anlage verwendet werden, indem der Gutstoffanschluss (3) der Fig. 1 oder 2 als Rejektanschluss dient. Der Gutstoff fällt dann am Auslass für die Schwerfraktion an. Solche Schaltungen sind an sich bekannt und daher hier nicht speziell dargestellt.Hydrocyclones can also be used so that the heavy fraction as a good and the light fraction is used as a reject. With such an application e.g. Specifically light contaminants separated from a paper fiber suspension. Here too A system according to the invention can be used by connecting the accept material (3) 1 or 2 serves as reject connection. The accepted material then falls at the outlet for the Heavy fraction. Such circuits are known per se and therefore not here specially illustrated.

Claims (18)

Hydrozyklonanlage mit mehreren Hydrozyklonen (1), die je mindestens einen Zulaufanschluss (2), einen Gutstoffanschluss (3) und einen Rejektanschluss (4) aufweisen sowie mit mindestens einer Verteil- und Sammelvorrichtung (5) für die Zu- und Abführung von Flüssigkeiten in die Hydrozyklone (1) bzw. aus den Hydrozyklonen,
dadurch gekennzeichnet, dass die Verteil- und Sammelvorrichtung (5) ein Strömungsteil enthält, welches eine in sich geschlossene, vorzugsweise zylindrische Seitenwand (7) hat mit Öffnungen (11) für die Zulaufanschlüsse (2) und Öffnungen (12) für die Gutstoffanschlüsse (3) oder für die Rejektanschlüsse (4) der Hydrozyklone (1), dass die Verteil- und Sammelvorrichtung (5) eine Trennwand (9) aufweist, welche den Strömungsquerschnitt der Verteil- und Sammelvorrichtung (5) verschließt, dass die Zulaufanschlüsse (2) der Hydrozyklone (1) stromaufwärts und die Gutstoffanschlüsse (3) oder die Rejektanschlüsse (4) stromabwärts der Trennwand (9) in die Verteil- und Sammelvorrichtung (5) münden.
Hydrocyclone system with several hydrocyclones (1), each with at least one inlet connection (2), one accept connection (3) and one reject connection (4) as well as with at least one distribution and collection device (5) for the supply and discharge of liquids into the Hydrocyclones (1) or from the hydrocyclones,
characterized by that the distribution and collection device (5) contains a flow part which has a self-contained, preferably cylindrical side wall (7) with openings (11) for the inlet connections (2) and openings (12) for the accept connections (3) or for the reject connections (4) of the hydrocyclones (1), that the distribution and collection device (5) has a partition (9) which closes the flow cross section of the distribution and collection device (5), that the inlet connections (2) of the hydrocyclones (1) upstream and the accept connections (3) or the reject connections (4) downstream of the partition (9) open into the distribution and collection device (5).
Hydrozyklonanlage nach Anspruch 1,
dadurch gekennzeichnet,
dass die Mittelachsen (10) der Hydrozyklone (1) parallel zur Strömungsrichtung (6) im Strömungsteil der Verteil- und Sammelvorrichtung (5) liegen.
Hydrocyclone plant according to claim 1,
characterized by
that the central axes (10) of the hydrocyclones (1) lie parallel to the direction of flow (6) in the flow part of the distribution and collection device (5).
Hydrozyklonanlage nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass die Strömungsrichtung (6) senkrecht steht.
Hydrocyclone plant according to claim 1 or 2,
characterized by
that the flow direction (6) is vertical.
Hydrozyklonanlage nach Anspruch 1, 2 oder 3,
dadurch gekennzeichnet,
dass die Öffnungen (11) für die Zulaufanschlüsse (2) auf demselben Umfang (13) der Verteil- und Sammelvorrichtung (5) angeordnet sind.
Hydrocyclone plant according to Claim 1, 2 or 3,
characterized by
that the openings (11) for the inlet connections (2) are arranged on the same circumference (13) of the distribution and collection device (5).
Hydrozyklonanlage nach Anspruch 1 2, 3 oder 4,
dadurch gekennzeichnet,
dass die Öffnungen (12) für die Gutstoffanschlüsse (3) oder die Rejektanschlüsse (4) auf demselben Umfang (14) der Verteil- und Sammelvorrichtung (5) angeordnet sind.
Hydrocyclone plant according to Claim 1 2, 3 or 4,
characterized by
that the openings (12) for the accept connections (3) or the reject connections (4) are arranged on the same circumference (14) of the distribution and collection device (5).
Hydrozyklonanlage nach Anspruch 1, 2, 3, 4 oder 5,
dadurch gekennzeichnet,
dass die Öffnungen (11) für die Zulaufanschlüsse (2) gleichmäßig über den Umfang der Verteil- und Sammelvorrichtung (5) verteilt sind.
Hydrocyclone plant according to Claim 1, 2, 3, 4 or 5,
characterized by
that the openings (11) for the inlet connections (2) are evenly distributed over the circumference of the distribution and collection device (5).
Hydrozyklonanlage nach einem der voranstehenden Ansprüche,
dadurch gekennzeichnet,
dass die Öffnungen (12) für die Gutstoffanschlüsse (3) oder die Rejektanschlüsse (4) gleichmäßig über den Umfang der Verteil- und Sammelvorrichtung (5) verteilt sind.
Hydrocyclone plant according to one of the preceding claims,
characterized by
that the openings (12) for the accept connections (3) or the reject connections (4) are evenly distributed over the circumference of the distribution and collection device (5).
Hydrozyklonanlage nach einem der voranstehenden Ansprüche,
dadurch gekennzeichnet,
dass die Mittellinie (18) des Zulaufanschlusses (2) an der Verteil- und Sammelvorrichtung (5) und die Mittellinie (19) des Gutstoffanschlusses (3) eines Hydrozyklons jeweils in Ebenen liegen, die zueinander einen Winkel von höchstens 45° haben.
Hydrocyclone plant according to one of the preceding claims,
characterized by
that the center line (18) of the inlet connection (2) on the distribution and collecting device (5) and the center line (19) of the accept material connection (3) of a hydrocyclone each lie in planes that have an angle of at most 45 ° to one another.
Hydrozyklonanlage nach Anspruch 8,
dadurch gekennzeichnet,
dass die Ebenen zueinander parallel liegen.
Hydrocyclone plant according to Claim 8,
characterized by
that the planes are parallel to each other.
Hydrozyklonanlage nach Anspruch 8 oder 9,
dadurch gekennzeichnet,
dass die Ebenen im Bereich der Verteil- und Sammelvorrichtung (5) einen Abstand (20) von höchstens 1,5 m haben.
Hydrocyclone plant according to claim 8 or 9,
characterized by
that the levels in the area of the distribution and collecting device (5) have a distance (20) of at most 1.5 m.
Hydrozyklonanlage nach einem der voranstehenden Ansprüche,
dadurch gekennzeichnet,
dass der Grundriss der zylindrischen Seitenwand (7) im Bereich der Öffnungen (11) für die Zulaufanschlüsse (2) gleich ist wie im Bereich der Öffnungen (12) für die Gutstoffanschlüsse (3).
Hydrocyclone plant according to one of the preceding claims,
characterized by
that the outline of the cylindrical side wall (7) in the area of the openings (11) for the inlet connections (2) is the same as in the area of the openings (12) for the accept connections (3).
Hydrozyklonanlage nach einem der voranstehenden Ansprüche,
dadurch gekennzeichnet,
dass die Seitenwand (7) einen Grundriss hat, der einem gleichmäßigen Polygon entspricht.
Hydrocyclone plant according to one of the preceding claims,
characterized by
that the side wall (7) has a floor plan that corresponds to a uniform polygon.
Hydrozyklonanlage nach einem der voranstehenden Ansprüche,
dadurch gekennzeichnet,
dass die Verteil- und Sammelvorrichtung (5) als apparative Einheit aufgebaut ist.
Hydrocyclone plant according to one of the preceding claims,
characterized by
that the distribution and collection device (5) is constructed as an apparatus unit.
Hydrozyklonanlage nach einem der voranstehenden Ansprüche,
dadurch gekennzeichnet,
dass die Trennwand (9) zur Strömungsrichtung (6) einen Winkel (α) zwischen 60° und 90° hat.
Hydrocyclone plant according to one of the preceding claims,
characterized by
that the partition (9) to the flow direction (6) has an angle (α) between 60 ° and 90 °.
Hydrozyklonanlage nach Anspruch 14,
dadurch gekennzeichnet,
dass der Winkel (α) 90° beträgt.
Hydrocyclone plant according to claim 14,
characterized by
that the angle (α) is 90 °.
Hydrozyklonanlage nach einem der voranstehenden Ansprüche,
dadurch gekennzeichnet,
dass die Anschlüsse für die Leichtfraktion der Hydrozyklone (1) in die stromabwärts der Trennwand (9) liegenden Öffnungen (12) münden.
Hydrocyclone plant according to one of the preceding claims,
characterized by
that the connections for the light fraction of the hydrocyclones (1) open into the openings (12) located downstream of the partition (9).
Hydrozyklonanlage nach einem der voranstehenden Ansprüche,
dadurch gekennzeichnet,
dass in den Öffnungen (11, 12) elastische ringförmige Dichtelemente (15) so eingesteckt sind, dass ihr eines axiale Ende in die Öffnung (11, 12) hineinreicht und ihr anderes axiales Ende zur Aufnahme des Zulaufanschlusses (2) bzw. Gutstoffanschlusses (3) bzw. Rejektanschluss (4) dient.
Hydrocyclone plant according to one of the preceding claims,
characterized by
that elastic ring-shaped sealing elements (15) are inserted in the openings (11, 12) in such a way that one axial end extends into the opening (11, 12) and their other axial end for receiving the inlet connection (2) or accept material connection (3 ) or reject connection (4).
Hydrozyklonanlage nach einem der voranstehenden Ansprüche,
dadurch gekennzeichnet,
dass die Rejektanschlüsse (4) der Hydrozyklone (1) in eine ringförmig um die Verteil- und Sammelvorrichtung (5) herum angeordnete Rejektleitung (16) einmünden.
Hydrocyclone plant according to one of the preceding claims,
characterized by
that the reject connections (4) of the hydrocyclones (1) open into a reject line (16) arranged in a ring around the distribution and collection device (5).
EP00116473A 1999-09-21 2000-07-29 Hydrocyclone plant Expired - Lifetime EP1087055B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29916596U 1999-09-21
DE29916596U DE29916596U1 (en) 1999-09-21 1999-09-21 Hydrocyclone plant

Publications (2)

Publication Number Publication Date
EP1087055A1 true EP1087055A1 (en) 2001-03-28
EP1087055B1 EP1087055B1 (en) 2004-10-13

Family

ID=8079211

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00116473A Expired - Lifetime EP1087055B1 (en) 1999-09-21 2000-07-29 Hydrocyclone plant

Country Status (3)

Country Link
EP (1) EP1087055B1 (en)
AT (1) ATE279572T1 (en)
DE (2) DE29916596U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7726491B2 (en) 2002-09-19 2010-06-01 Suncor Energy Inc. Bituminous froth hydrocarbon cyclone
US7736501B2 (en) 2002-09-19 2010-06-15 Suncor Energy Inc. System and process for concentrating hydrocarbons in a bitumen feed
US8968580B2 (en) 2009-12-23 2015-03-03 Suncor Energy Inc. Apparatus and method for regulating flow through a pumpbox

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20010900U1 (en) 2000-06-20 2000-08-24 Voith Sulzer Papiertechnik Patent GmbH, 88213 Ravensburg Hydrocyclone plant
US9909333B2 (en) 2015-01-26 2018-03-06 Hayward Industries, Inc. Swimming pool cleaner with hydrocyclonic particle separator and/or six-roller drive system
US9885196B2 (en) 2015-01-26 2018-02-06 Hayward Industries, Inc. Pool cleaner power coupling
US10156083B2 (en) 2017-05-11 2018-12-18 Hayward Industries, Inc. Pool cleaner power coupling
US9896858B1 (en) 2017-05-11 2018-02-20 Hayward Industries, Inc. Hydrocyclonic pool cleaner
US9885194B1 (en) 2017-05-11 2018-02-06 Hayward Industries, Inc. Pool cleaner impeller subassembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4267048A (en) * 1979-03-12 1981-05-12 Oishikikai Mfg. Co., Ltd. Equipment for separating foreign matter from liquid papermaking materials
EP0658648A2 (en) * 1993-12-11 1995-06-21 Hans-Joachim Dr. Schultz Process and apparatus for continuously separating desirable and undesirable substances in a fibrous suspension

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4267048A (en) * 1979-03-12 1981-05-12 Oishikikai Mfg. Co., Ltd. Equipment for separating foreign matter from liquid papermaking materials
EP0658648A2 (en) * 1993-12-11 1995-06-21 Hans-Joachim Dr. Schultz Process and apparatus for continuously separating desirable and undesirable substances in a fibrous suspension

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7726491B2 (en) 2002-09-19 2010-06-01 Suncor Energy Inc. Bituminous froth hydrocarbon cyclone
US7736501B2 (en) 2002-09-19 2010-06-15 Suncor Energy Inc. System and process for concentrating hydrocarbons in a bitumen feed
US8968580B2 (en) 2009-12-23 2015-03-03 Suncor Energy Inc. Apparatus and method for regulating flow through a pumpbox

Also Published As

Publication number Publication date
ATE279572T1 (en) 2004-10-15
EP1087055B1 (en) 2004-10-13
DE50008211D1 (en) 2004-11-18
DE29916596U1 (en) 2000-01-05

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