EP3079800B1 - Agitating member and agitating device for creating a current in a wastewater treatment basin - Google Patents

Agitating member and agitating device for creating a current in a wastewater treatment basin Download PDF

Info

Publication number
EP3079800B1
EP3079800B1 EP14784460.9A EP14784460A EP3079800B1 EP 3079800 B1 EP3079800 B1 EP 3079800B1 EP 14784460 A EP14784460 A EP 14784460A EP 3079800 B1 EP3079800 B1 EP 3079800B1
Authority
EP
European Patent Office
Prior art keywords
stirring body
stirring
joining
segments
joining portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14784460.9A
Other languages
German (de)
French (fr)
Other versions
EP3079800A1 (en
Inventor
Marcus HÖFKEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Invent Umwelt und Verfahrenstechnik AG
Original Assignee
Invent Umwelt und Verfahrenstechnik AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Invent Umwelt und Verfahrenstechnik AG filed Critical Invent Umwelt und Verfahrenstechnik AG
Priority to PL14784460T priority Critical patent/PL3079800T3/en
Publication of EP3079800A1 publication Critical patent/EP3079800A1/en
Application granted granted Critical
Publication of EP3079800B1 publication Critical patent/EP3079800B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/117—Stirrers provided with conical-shaped elements, e.g. funnel-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/051—Stirrers characterised by their elements, materials or mechanical properties
    • B01F27/053—Stirrers characterised by their elements, materials or mechanical properties characterised by their materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/071—Fixing of the stirrer to the shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0725—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis on the free end of the rotating axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/117—Stirrers provided with conical-shaped elements, e.g. funnel-shaped
    • B01F27/1171—Stirrers provided with conical-shaped elements, e.g. funnel-shaped having holes in the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/165—Making mixers or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/267—Making other particular articles wheels or the like blower wheels, i.e. wheels provided with fan elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/305—Treatment of water, waste water or sewage

Definitions

  • the invention relates to a stirring body according to the preamble of claim 1 and a stirring device for generating a flow in a wastewater treatment tank.
  • a stirring device is for example from the DE 91 06 639.5 U1 known.
  • a hyperboloid-like stirring body usually has a diameter of 1.5 to 3 m in practice.
  • a stirrer shaft is attached to a central or centrally protruding fitting.
  • Such stirring bodies are made of glass fiber reinforced plastic. For this purpose, several layers of a fabric made of glass fibers are laminated one above the other using a suitable mold in manual technique. - The cost of producing such a stirring body are high. Apart from that, the stirring body is bulky and requires a large transport volume.
  • the object of the invention is to eliminate the disadvantages of the prior art.
  • a stirring body and a stirring device are to be specified, which are as simple and inexpensive to produce.
  • the stirring body and the stirring device should be transportable with reduced effort.
  • the stirring body is formed of a plurality of segments which extend along from a peripheral edge in the direction the connecting piece extending joining zones are interconnected. -
  • the production of segments requires a considerably lower cost.
  • the segments can be made using a much smaller mold.
  • the stirring body is formed of segments, it can be transported disassembled to the place of use and only be mounted there. This saves transport costs.
  • the stirring body according to the invention has excellent mechanical stability which is comparable to the mechanical stability of conventional one-piece stirring bodies.
  • the segments each have a first joining portion with a first joining profile and a second joining portion with a second joining profile corresponding to the first joining profile.
  • the first joining profile is preferably designed in the manner of a step.
  • a height of the step advantageously corresponds to a thickness of the segment in the region of the second joining section.
  • the second joining profile may expediently be flat.
  • a breakthrough in the segment is provided in the region of the first joining section.
  • the aperture advantageously extends in a radially inner half of the segment along the first joining portion.
  • the "radially inner half of the segment” is understood to mean that half which comprises a connecting piece section of the connecting piece.
  • a breakthrough in the circumferential direction opposite portion of the second joining portion may have a marginal recess.
  • the marginal recess corresponds in its radial extent to the radial extension of the opening, so that in the assembled state, the recess complements the breakthrough of the adjacent segment.
  • a plurality, preferably all, segments each have a transport rib extending from its peripheral edge section to its connecting piece section.
  • a height of the transport rib Advantageously takes from the peripheral edge portion for breakthrough toward and then in the direction of the connector portion again.
  • a ratio between a minimum height of the transport rib in the region of the peripheral edge portion to a maximum height is, for example, in the range of 1: 5 to 1: 100, preferably 1: 5 to 1:20.
  • the transport rib advantageously extends from the first joining section. It is expediently produced in one-piece construction with the first joining section and has approximately the thickness of the segment.
  • the transport rib designed in the manner of a web advantageously has a substantially rectangular cross-section. It may partially limit the breakthrough and have in the region of the opening a through the opening extending through web which engages in the assembled state in the peripheral recess in the second joining portion of an adjacent segment. This is a simple way of accurately fitting adjacent segments.
  • each other passport means may be provided on the first and on the second joint section. It may be conical pins and corresponding recesses, bars and corresponding slot-like recesses or the like. Act.
  • mutually corresponding fastening means may be provided on the first and on the second joining profile. It may, for example, to threaded bushings and openings for performing screws or the like. Act.
  • the connecting piece can have further openings for carrying out fastening means for fastening the stirring body to a stirrer shaft.
  • the fastening means may be, for example, screws, rivets or the like.
  • the segments are made of molded plastic or metal.
  • the plastic can be formed from two components.
  • polyolefins in particular PP, PS, ABS, PA, POM, EVAC, GRP, NCF, SAN, UP, VPE, Tellene, HDPE or other plastics which are suitable for processing by means of casting or injection molding can be used as the plastic.
  • thermoplastic injection molding thermoset injection molding, multi-component injection molding, in particular in-mold, or powder injection molding, into consideration.
  • the vacuum casting process comes into consideration.
  • the plastic may also be added short fibers to increase the rigidity.
  • the segments z. B. in die casting of metal, in particular of an aluminum alloy to produce. Alloys such as AlSi9Cu3 (Fe), AlSi12Cu1 (Fe), AlSi12 (Fe), and AlSi10MgCu are contemplated.
  • a connecting element for connection to the stirring shaft.
  • a connecting element can be designed, for example, in the manner of an adapter.
  • the stirring body can be configured for connection to a variety of common on the market shaft connections.
  • the first and the second joining section are curved in a radial direction from the peripheral edge in the direction of the connecting piece. Ie. the first and the second joining section run obliquely in the region of the peripheral edge and then bend in the direction of the connecting piece in a radial direction.
  • the transport rib advantageously runs parallel to the first joining zone. The curved course of the transport rib enables a particularly efficient generation of a flow in the wastewater.
  • the segments are glued together and / or screwed.
  • a combined screw and adhesive bond leads to a particularly stable stirring body.
  • Each segment may have at least one transport rib. Although it is expedient that each of the segments has only one transport rib and thus can be made relatively narrow, it is also possible for the segments to have a plurality of transport ribs.
  • a stirring device for generating a flow in a wastewater treatment tank in which an agitating body according to the invention is attached to a stirring shaft extending from a drive device.
  • Such a stirring device can be easily produced and transported with little effort.
  • the agitator shaft has axially extending ribs, which engage in corresponding grooves on the connector.
  • the axial grooves provided on the inner circumference of the connecting piece are expediently formed by the first joining profiles of the adjoining connecting piece sections of the segments.
  • a stirring body which has a top O, a peripheral edge UR and a bottom U.
  • a connector for connecting a stirring shaft is generally designated by the reference numeral 2.
  • the stirring body 1 has a hyperboloid-like shape in the present exemplary embodiment.
  • it is formed from eight segments S1 to S8, which are connected to one another along joining zones F1 to F8 extending from the peripheral edge UR in the direction of the connecting piece 2.
  • the first joining zone F1 is in the FIGS. 2 and 3 shown closer.
  • Each of the advantageously identically constructed segments S1 to S8 has at its one long edge a first joining section Fa1 with a first joining profile P1 and at its other long edge a second joining section Fa2 with a second joining profile P2 (see also FIG Fig. 5 and 6 ).
  • the first joining profile P1 is formed in the manner of a step, from which extends at an angle ⁇ in the range of 60 to 90 °, a transport rib T1.
  • the opposite in the circumferential direction of the first long edge on the second long Edge provided second joining profile P2 corresponds in the present embodiment in cross-section of a plate (see Fig. 3 ).
  • the second joining profile P2 corresponds to the first joining profile P1 in such a way that in the assembled state the contours of all lower sides of the segments S1 to S8 complement one another to form a flat overall contour forming the underside U of the stirring body 1.
  • the second joining profile P2 has a thickness D which corresponds to a height of the step of the first joining profile P1.
  • the Fig. 5 and 6 show exemplary perspective views of the first segment S1.
  • the first segment S1 has a first opening D1, which extends in a radially inner half of the first segment S1 along the first joining section Fa1.
  • the first transport rib T1 partially limits the first breakthrough D1.
  • a section of the second joining section Fa2 which is opposite the first opening D1 in the circumferential direction has a marginal recess A.
  • the marginal recess A is designed such that an eighth web St8 extending from an eighth transporting rib T8 of the eighth segment S8 (see FIG Fig. 4 ) is positively received in the assembled state.
  • the first transport rib T1 has a minimum height H1 in the region of the peripheral edge section URs and a maximum height H2 in the region of the first breakthrough D1 (see FIG Fig. 5 ).
  • a ratio H1 / H2 is in the range of 1/5 to 1/100, preferably in the range of 1/5 to 1/20.
  • the angle ⁇ between the first transport rib T1 and the upper side O decreases from the peripheral edge UR towards the connection piece 2, so that the first transport rib T1 is inclined in particular in the area of the first opening D1 towards the first opening D1.
  • the maximum height H2 decreases again from the first opening D1 in the direction of a connecting piece section 2 '.
  • the joining sections Fa1, Fa2 are curved.
  • the joining sections Fa1, Fa2 and the first conveying rib T1 extending from the first joining section Fa1 extend approximately radially in a radially inner section of the stirring body 1 and then turn in a tangential direction so that they run obliquely in the region of a peripheral edge section URs.
  • the first opening D1 is defined by the convex curved side of the first transport rib T1 as viewed from the upper side O.
  • the connecting piece section 2 'formed essentially in the manner of a cylinder jacket section has a step-like offset V corresponding to the step-like configuration of the first joining profile P1.
  • the first joining profile P1 extends, except for the interruption formed by the first opening D1, into the connecting piece section 2 '.
  • FIGS. 7 and 8 show an embodiment of the connecting piece 2 in combination with a stirring shaft 3.
  • the stirring shaft 3 has here axially extending ribs 4.
  • the connecting piece sections 2 'of the segments are here designed in such a way that grooves 5 correspondingly configured to the ribs 4 are provided, so that the ribs 4 engage in a form-fitting manner in the grooves 5.
  • a particularly rotationally fixed connection between the stirring body 1 and the stirring shaft 3 can be produced.
  • the stirring body 1 has a hyperboloid-like shape, it may also be that the stirring body 1 is formed, for example, in the manner of a truncated cone.
  • the segments S1 to S8 shown in the figures are expediently of identical construction. They can be easily made in plastic molding technology.
  • the following plastics are particularly suitable for the production of segments S1 to S8: polyolefins, in particular PP, PS, ABS, PA, POM, EVAC, GRP, NCF, SAN, UP, VPE, Tellene, HDPE and the like.
  • the stirring element 1 described here is constructed from eight identical segments S1 to S8. It is of course also possible to produce a similar stirring body 1 from a smaller or larger number of identical segments.
  • each of the segments S1 to S8 has a transport rib T1 to T8, which is arranged in each case along the one long edge.
  • the transport rib T1 to T8 for example centrally in the segment S1. It is also conceivable to combine segments S1 to S8 without transport ribs T1 to T8 with segments S1 to S8, which have transport ribs T1 to T8.
  • the segments S1 to S8 shown in the present embodiment each have an opening D1 to D8.
  • the segments S1 to S8 can preferably be connected to one another by means of screw connections (not shown here).
  • screw connections for example, threaded bushes can be provided in the region of the second joining profile P2. It is also possible to glue the segments S1 to S8 together in addition to the mentioned screw connections.
  • a template may be provided on which the segments S1 to S8 are placed and subsequently connected to each other.
  • the proposed stirring body 1 can be produced and transported with reduced effort. Nevertheless, it has excellent strength.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Accessories For Mixers (AREA)

Description

Die Erfindung betrifft einen Rührkörper nach dem Oberbegriff des Anspruchs 1 und eine Rührvorrichtung zum Erzeugen einer Strömung in einem Abwasserbehandlungsbecken.The invention relates to a stirring body according to the preamble of claim 1 and a stirring device for generating a flow in a wastewater treatment tank.

Eine Rührvorrichtung ist beispielsweise aus der DE 91 06 639.5 U1 bekannt. Bei der bekannten Rührvorrichtung weist ein hyperboloidartig ausgeführter Rührkörper in der Praxis üblicherweise einen Durchmesser von 1,5 bis 3 m auf. An einem in der Mitte bzw. zentral hervorstehenden Anschlussstück ist eine Rührwelle angebracht.A stirring device is for example from the DE 91 06 639.5 U1 known. In the known stirring device, a hyperboloid-like stirring body usually has a diameter of 1.5 to 3 m in practice. A stirrer shaft is attached to a central or centrally protruding fitting.

Derartige Rührkörper werden aus glasfaserverstärktem Kunststoff hergestellt. Dazu werden unter Verwendung einer geeigneten Form in manueller Technik mehrere Lagen eines aus Glasfasern hergestellten Gewebes übereinander laminiert. - Die Kosten für die Herstellung eines solchen Rührkörpers sind hoch. Abgesehen davon ist der Rührkörper sperrig und erfordert ein großes Transportvolumen.Such stirring bodies are made of glass fiber reinforced plastic. For this purpose, several layers of a fabric made of glass fibers are laminated one above the other using a suitable mold in manual technique. - The cost of producing such a stirring body are high. Apart from that, the stirring body is bulky and requires a large transport volume.

Dokument WO-A-2006/108538 offenbart einen Rührkörper gemäß dem Oberbegriff des Anspruchs 1.document WO 2006/108538 discloses a stirring body according to the preamble of claim 1.

Aufgabe der Erfindung ist es, die Nachteile nach dem Stand der Technik zu beseitigen. Es sollen insbesondere ein Rührkörper und eine Rührvorrichtung angegeben werden, welche möglichst einfach und kostengünstig herstellbar sind. Nach einem weiteren Ziel der Erfindung sollen der Rührkörper und die Rührvorrichtung mit vermindertem Aufwand transportierbar sein.The object of the invention is to eliminate the disadvantages of the prior art. In particular, a stirring body and a stirring device are to be specified, which are as simple and inexpensive to produce. According to a further object of the invention, the stirring body and the stirring device should be transportable with reduced effort.

Diese Aufgabe wird durch die Merkmale der Ansprüche 1 und 21 gelöst. Zweckmäßige Ausgestaltungen der Erfindung ergeben sich aus den Merkmalen der Ansprüche 2 bis 20 und 22.This object is solved by the features of claims 1 and 21. Advantageous embodiments of the invention will become apparent from the features of claims 2 to 20 and 22nd

Nach Maßgabe der Erfindung ist vorgesehen, dass der Rührkörper aus mehreren Segmenten gebildet ist, welche entlang sich von einem Umfangsrand in Richtung des Anschlussstücks erstreckenden Fügezonen miteinander verbunden sind. - Die Herstellung von Segmenten erfordert einen erheblich geringeren Aufwand. Die Segmente können unter Verwendung einer wesentlich kleineren Form hergestellt werden. Indem der Rührkörper aus Segmenten gebildet ist, kann er zerlegt zum Einsatzort transportiert und erst dort montiert werden. Das spart Transportkosten. Überraschenderweise hat sich herausgestellt, dass der erfindungsgemäße Rührkörper eine hervorragende mechanische Stabilität aufweist, welche mit der mechanischen Stabilität herkömmlicher, aus einem Stück gefertigter Rührkörper vergleichbar ist.According to the invention, it is provided that the stirring body is formed of a plurality of segments which extend along from a peripheral edge in the direction the connecting piece extending joining zones are interconnected. - The production of segments requires a considerably lower cost. The segments can be made using a much smaller mold. By the stirring body is formed of segments, it can be transported disassembled to the place of use and only be mounted there. This saves transport costs. Surprisingly, it has been found that the stirring body according to the invention has excellent mechanical stability which is comparable to the mechanical stability of conventional one-piece stirring bodies.

Nach einer vorteilhaften Ausgestaltung der Erfindung weisen die Segmente jeweils einen ersten Fügeabschnitt mit einem ersten Fügeprofil und einen zweiten Fügeabschnitt mit einem zum ersten Fügeprofil korrespondierenden zweiten Fügeprofil auf. Das erste Fügeprofil ist vorzugsweise nach Art einer Stufe ausgebildet. Eine Höhe der Stufe korrespondiert vorteilhafterweise zu einer Dicke des Segments im Bereich des zweiten Fügeabschnitts. In diesem Fall kann das zweite Fügeprofil zweckmäßigerweise eben ausgebildet sein.According to an advantageous embodiment of the invention, the segments each have a first joining portion with a first joining profile and a second joining portion with a second joining profile corresponding to the first joining profile. The first joining profile is preferably designed in the manner of a step. A height of the step advantageously corresponds to a thickness of the segment in the region of the second joining section. In this case, the second joining profile may expediently be flat.

Nach einer weiteren Ausgestaltung der Erfindung ist im Bereich des ersten Fügeabschnitts ein Durchbruch im Segment vorgesehen. Der Durchbruch erstreckt sich vorteilhafterweise in einer radial inneren Hälfte des Segments entlang des ersten Fügeabschnitts. Unter der "radial inneren Hälfte des Segments" wird diejenige Hälfte verstanden, welche einen Anschlussstückabschnitt des Anschlussstücks umfasst. Ein dem Durchbruch in Umfangsrichtung gegenüberliegender Abschnitt des zweiten Fügeabschnitts kann eine randliche Ausnehmung aufweisen. Die randliche Ausnehmung korrespondiert in ihrer radialen Erstreckung zur radialen Erstreckung des Durchbruchs, so dass im Montagezustand die Ausnehmung den Durchbruch des benachbarten Segments ergänzt.According to a further embodiment of the invention, a breakthrough in the segment is provided in the region of the first joining section. The aperture advantageously extends in a radially inner half of the segment along the first joining portion. The "radially inner half of the segment" is understood to mean that half which comprises a connecting piece section of the connecting piece. A breakthrough in the circumferential direction opposite portion of the second joining portion may have a marginal recess. The marginal recess corresponds in its radial extent to the radial extension of the opening, so that in the assembled state, the recess complements the breakthrough of the adjacent segment.

Nach einer besonders vorteilhaften Ausgestaltung weisen mehrere, vorzugsweise sämtliche, Segmente jeweils eine von deren Umfangsrandabschnitt zu deren Anschlussstückabschnitt sich erstreckende Transportrippe auf. Eine Höhe der Transportrippe nimmt vorteilhafterweise vom Umfangsrandabschnitt zum Durchbruch hin zu und dann in Richtung des Anschlussstückabschnitts wieder ab. Ein Verhältnis zwischen einer minimalen Höhe der Transportrippe im Bereich des Umfangsrandabschnitts zu einer maximalen Höhe liegt beispielsweise im Bereich von 1:5 bis 1:100, vorzugsweise 1:5 bis 1:20.According to a particularly advantageous embodiment, a plurality, preferably all, segments each have a transport rib extending from its peripheral edge section to its connecting piece section. A height of the transport rib Advantageously takes from the peripheral edge portion for breakthrough toward and then in the direction of the connector portion again. A ratio between a minimum height of the transport rib in the region of the peripheral edge portion to a maximum height is, for example, in the range of 1: 5 to 1: 100, preferably 1: 5 to 1:20.

Die Transportrippe erstreckt sich vorteilhafterweise vom ersten Fügeabschnitt. Sie ist zweckmäßigerweise in einstückiger Ausbildung mit dem ersten Fügeabschnitt hergestellt und weist etwa die Dicke des Segments auf. Die nach Art eines Stegs ausgebildete Transportrippe hat vorteilhafterweise einen im Wesentlichen rechteckigen Querschnitt. Sie kann abschnittsweise den Durchbruch begrenzen und im Bereich des Durchbruchs einen sich durch den Durchbruch hindurch erstreckenden Steg aufweisen, welcher im Montagezustand in die randliche Ausnehmung im zweiten Fügeabschnitt eines benachbarten Segments eingreift. Damit gelingt auf einfache Weise ein passgenaues Fügen benachbarter Segmente.The transport rib advantageously extends from the first joining section. It is expediently produced in one-piece construction with the first joining section and has approximately the thickness of the segment. The transport rib designed in the manner of a web advantageously has a substantially rectangular cross-section. It may partially limit the breakthrough and have in the region of the opening a through the opening extending through web which engages in the assembled state in the peripheral recess in the second joining portion of an adjacent segment. This is a simple way of accurately fitting adjacent segments.

Selbstverständlich können am ersten und am zweiten Fügeabschnitt auch andersartig ausgestaltete, zueinander korrespondierende Passmittel vorgesehen sein. Es kann sich dabei um konische Zapfen und dazu korrespondierende Ausnehmungen, um Stege und dazu korrespondierende schlitzartige Ausnehmungen oder dgl. handeln.Of course, differently configured, corresponding to each other passport means may be provided on the first and on the second joint section. It may be conical pins and corresponding recesses, bars and corresponding slot-like recesses or the like. Act.

Ferner können am ersten und am zweiten Fügeprofil zueinander korrespondierende Befestigungsmittel vorgesehen sein. Es kann sich dabei beispielsweise um Gewindebuchsen und Durchbrüche zum Durchführen von Schrauben oder dgl. handeln.Furthermore, mutually corresponding fastening means may be provided on the first and on the second joining profile. It may, for example, to threaded bushings and openings for performing screws or the like. Act.

Das Anschlussstück kann weitere Durchbrüche zum Durchführen von Befestigungsmitteln zur Befestigung des Rührkörpers an einer Rührwelle aufweisen. Bei den Befestigungsmitteln kann es sich beispielsweise um Schrauben, Niete oder dgl. handeln.The connecting piece can have further openings for carrying out fastening means for fastening the stirring body to a stirrer shaft. The fastening means may be, for example, screws, rivets or the like.

Nach einer besonders vorteilhaften Ausgestaltung der Erfindung sind die Segmente aus gegossenem Kunststoff oder Metall hergestellt. Der Kunststoff kann aus zwei Komponenten gebildet sein. Als Kunststoff können insbesondere Polyolefine, insbesondere PP, PS, ABS, PA, POM, EVAC, GFK, NCF, SAN, UP, VPE, Tellene, HDPE oder andere Kunststoffe verwendet werden, welche sich zur Verarbeitung mittels Guss oder Spritzguss eignen. Im Rahmen der Spritzgussverarbeitung kommen insbesondere Thermoplast-Spritzgussverfahren, Duroplast-Spritzgussverfahren, Mehrkomponenten-Spritzgussverfahren, insbesondere In-Mold-Verfahren, oder Pulverspritzgussverfahren, in Betracht. Bei Gussverfahren kommt insbesondere das Vakuumgussverfahren in Betracht. Dem Kunststoff können auch Kurzfasern zur Erhöhung der Steifigkeit beigefügt sein.According to a particularly advantageous embodiment of the invention, the segments are made of molded plastic or metal. The plastic can be formed from two components. In particular, polyolefins, in particular PP, PS, ABS, PA, POM, EVAC, GRP, NCF, SAN, UP, VPE, Tellene, HDPE or other plastics which are suitable for processing by means of casting or injection molding can be used as the plastic. In the context of injection molding, in particular thermoplastic injection molding, thermoset injection molding, multi-component injection molding, in particular in-mold, or powder injection molding, into consideration. In casting processes, in particular the vacuum casting process comes into consideration. The plastic may also be added short fibers to increase the rigidity.

Es ist auch möglich, die Segmente z. B. im Druckgießverfahren aus Metall, insbesondere aus einer Aluminiumlegierung, herzustellen. In Betracht kommen Legierungen wie AlSi9Cu3(Fe), AlSi12Cu1 (Fe), AlSi12(Fe) und AlSi10MgCu.It is also possible, the segments z. B. in die casting of metal, in particular of an aluminum alloy to produce. Alloys such as AlSi9Cu3 (Fe), AlSi12Cu1 (Fe), AlSi12 (Fe), and AlSi10MgCu are contemplated.

Nach einer weiteren Ausgestaltung kann am Anschlussstück ein Verbindungselement zur Verbindung mit der Rührwelle angebracht sein. Ein solches Verbindungselement kann beispielsweise nach Art eines Adapters ausgebildet sein. Damit kann der Rührkörper zur Verbindung mit einer Vielzahl von am Markt üblichen Wellenanschlüssen konfiguriert werden.According to a further embodiment may be attached to the connecting piece, a connecting element for connection to the stirring shaft. Such a connecting element can be designed, for example, in the manner of an adapter. Thus, the stirring body can be configured for connection to a variety of common on the market shaft connections.

Vorteilhafterweise sind der erste und der zweite Fügeabschnitt vom Umfangsrand in Richtung zum Anschlussstück hin in eine radiale Richtung gekrümmt. D. h. der erste und der zweite Fügeabschnitt verlaufen im Bereich des Umfangsrands schräg und biegen dann in Richtung zum Anschlussstück in eine radiale Richtung um. Die Transportrippe verläuft dabei vorteilhafterweise parallel zur ersten Fügezone. Der gekrümmte Verlauf der Transportrippe ermöglicht eine besonders effiziente Erzeugung einer Strömung im Abwasser.Advantageously, the first and the second joining section are curved in a radial direction from the peripheral edge in the direction of the connecting piece. Ie. the first and the second joining section run obliquely in the region of the peripheral edge and then bend in the direction of the connecting piece in a radial direction. The transport rib advantageously runs parallel to the first joining zone. The curved course of the transport rib enables a particularly efficient generation of a flow in the wastewater.

Nach einer weiteren Ausgestaltung ist vorgesehen, dass die Segmente miteinander verklebt und/oder verschraubt sind. Insbesondere eine kombinierte Schraub- und Klebverbindung führt zu einem besonders stabilen Rührkörper.According to a further embodiment it is provided that the segments are glued together and / or screwed. In particular, a combined screw and adhesive bond leads to a particularly stable stirring body.

Jedes Segment kann zumindest eine Transportrippe aufweisen. Obwohl es zweckmäßig ist, dass jedes der Segmente lediglich eine Transportrippe aufweist und damit relativ schmal ausgebildet werden kann, ist es auch möglich, dass Segmente mehrere Transportrippen aufweist.Each segment may have at least one transport rib. Although it is expedient that each of the segments has only one transport rib and thus can be made relatively narrow, it is also possible for the segments to have a plurality of transport ribs.

In jedem Fall hat es sich als besonders vorteilhaft erwiesen, dass die Segmente baugleich sind. In diesem Fall muss zur Herstellung eines Rührkörpers lediglich eine einzige Form vorgehalten werden.In any case, it has proven to be particularly advantageous that the segments are identical. In this case, only a single mold needs to be provided for the production of a stirring body.

Nach weiterer Maßgabe der Erfindung wird eine Rührvorrichtung zum Erzeugen einer Strömung in einem Abwasserbehandlungsbecken vorgeschlagen, bei der an einer sich von einer Antriebseinrichtung erstreckenden Rührwelle ein erfindungsgemäßer Rührkörper angebracht ist. - Eine solche Rührvorrichtung lässt sich einfach herstellen und mit geringem Aufwand transportieren.According to another aspect of the invention, a stirring device for generating a flow in a wastewater treatment tank is proposed, in which an agitating body according to the invention is attached to a stirring shaft extending from a drive device. - Such a stirring device can be easily produced and transported with little effort.

Nach einer vorteilhaften Ausgestaltung weist die Rührwelle axial sich erstreckende Rippen auf, welche in dazu korrespondierende Nuten am Anschlussstück eingreifen. Die am inneren Umfang des Anschlussstücks vorgesehenen axialen Nuten sind zweckmäßigerweise gebildet durch die ersten Fügeprofile der aneinanderliegenden Anschlussstückabschnitte der Segmente.According to an advantageous embodiment, the agitator shaft has axially extending ribs, which engage in corresponding grooves on the connector. The axial grooves provided on the inner circumference of the connecting piece are expediently formed by the first joining profiles of the adjoining connecting piece sections of the segments.

Nachfolgend werden Ausführungsbeispiele der Erfindung anhand der Zeichnungen näher erläutert. Es zeigen:

Fig. 1
eine perspektivische Ansicht eines Rührkörpers,
Fig. 2
eine Draufsicht auf den Rührkörper gemäß Fig. 1,
Fig. 3
eine Schnittansicht gemäß der Schnittlinie A-A in Fig. 2,
Fig. 4
eine perspektivische Unteransicht des Rührkörpers gemäß Fig. 1,
Fig. 5
eine perspektivische Ansicht eines Segments,
Fig. 6
eine perspektivische Unteransicht des Segments gemäß Fig. 5,
Fig. 7
eine perspektivische Teilansicht eines Anschlussstücks und
Fig. 8
eine Schnittansicht durch das in Fig. 7 teilweise gezeigte Anschlussstück.
Embodiments of the invention will be explained in more detail with reference to the drawings. Show it:
Fig. 1
a perspective view of a stirring body,
Fig. 2
a plan view of the stirring body according to Fig. 1 .
Fig. 3
a sectional view along the section line AA in Fig. 2 .
Fig. 4
a perspective bottom view of the stirring body according to Fig. 1 .
Fig. 5
a perspective view of a segment,
Fig. 6
a perspective bottom view of the segment according to Fig. 5 .
Fig. 7
a partial perspective view of a connector and
Fig. 8
a sectional view through the in Fig. 7 partially shown connector.

In den Figuren ist allgemein mit dem Bezugszeichen 1 ein Rührkörper bezeichnet, welcher eine Oberseite O, einen Umfangsrand UR und eine Unterseite U aufweist. Ein Anschlussstück zum Anschluss einer Rührwelle ist allgemein mit dem Bezugszeichen 2 bezeichnet.In the figures, generally designated by the reference numeral 1, a stirring body, which has a top O, a peripheral edge UR and a bottom U. A connector for connecting a stirring shaft is generally designated by the reference numeral 2.

Der Rührkörper 1 weist im vorliegenden Ausführungsbeispiel eine hyperboloidartige Form auf. Er ist im vorliegenden Ausführungsbeispiel aus acht Segmenten S1 bis S8 gebildet, welche entlang sich vom Umfangsrand UR in Richtung des Anschlussstücks 2 erstreckenden Fügezonen F1 bis F8 miteinander verbunden sind.The stirring body 1 has a hyperboloid-like shape in the present exemplary embodiment. In the present exemplary embodiment, it is formed from eight segments S1 to S8, which are connected to one another along joining zones F1 to F8 extending from the peripheral edge UR in the direction of the connecting piece 2.

Die erste Fügezone F1 ist in den Fig. 2 und 3 näher gezeigt. Jedes der vorteilhafterweise baugleich ausgeführten Segmente S1 bis S8 weist an seiner einen langen Kante einen ersten Fügeabschnitt Fa1 mit einem ersten Fügeprofil P1 und an seiner anderen langen Kante einen zweiten Fügeabschnitt Fa2 mit einem zweiten Fügeprofil P2 auf (siehe auch Fig. 5 und 6). Im vorliegenden Ausführungsbeispiel ist das erste Fügeprofil P1 nach Art einer Stufe ausgebildet, von der sich unter einem Winkel α im Bereich von 60 bis 90° eine Transportrippe T1 erstreckt. Das in Umfangsrichtung der ersten langen Kante gegenüberliegend an der zweiten langen Kante vorgesehene zweite Fügeprofil P2 entspricht im vorliegenden Ausführungsbeispiel im Querschnitt einer Platte (siehe Fig. 3). Das zweite Fügeprofil P2 korrespondiert mit dem ersten Fügeprofil P1 derart, dass im Montagezustand die Konturen sämtlicher Unterseiten der Segmente S1 bis S8 sich zu einer die Unterseite U des Rührkörpers 1 bildenden ebenen Gesamtkontur ergänzen. Zu diesem Zweck weist das zweite Fügeprofil P2 eine Dicke D auf, welche einer Höhe der Stufe des ersten Fügeprofils P1 entspricht.The first joining zone F1 is in the FIGS. 2 and 3 shown closer. Each of the advantageously identically constructed segments S1 to S8 has at its one long edge a first joining section Fa1 with a first joining profile P1 and at its other long edge a second joining section Fa2 with a second joining profile P2 (see also FIG Fig. 5 and 6 ). In the present embodiment, the first joining profile P1 is formed in the manner of a step, from which extends at an angle α in the range of 60 to 90 °, a transport rib T1. The opposite in the circumferential direction of the first long edge on the second long Edge provided second joining profile P2 corresponds in the present embodiment in cross-section of a plate (see Fig. 3 ). The second joining profile P2 corresponds to the first joining profile P1 in such a way that in the assembled state the contours of all lower sides of the segments S1 to S8 complement one another to form a flat overall contour forming the underside U of the stirring body 1. For this purpose, the second joining profile P2 has a thickness D which corresponds to a height of the step of the first joining profile P1.

Die Fig. 5 und 6 zeigen beispielhaft perspektivische Ansichten des ersten Segments S1. Das erste Segment S1 weist einen ersten Durchbruch D1 auf, welcher sich in einer radial inneren Hälfte des ersten Segments S1 entlang des ersten Fügeabschnitts Fa1 erstreckt. Die erste Transportrippe T1 begrenzt abschnittsweise den ersten Durchbruch D1. Ein dem ersten Durchbruch D1 in Umfangsrichtung gegenüberliegender Abschnitt des zweiten Fügeabschnitts Fa2 weist eine randliche Ausnehmung A auf. Die randliche Ausnehmung A ist so gestaltet, dass darin ein sich von einer achten Transportrippe T8 des achten Segments S8 sich erstreckender achter Steg St8 (siehe Fig. 4) im Montagezustand formschlüssig aufgenommen wird.The Fig. 5 and 6 show exemplary perspective views of the first segment S1. The first segment S1 has a first opening D1, which extends in a radially inner half of the first segment S1 along the first joining section Fa1. The first transport rib T1 partially limits the first breakthrough D1. A section of the second joining section Fa2 which is opposite the first opening D1 in the circumferential direction has a marginal recess A. The marginal recess A is designed such that an eighth web St8 extending from an eighth transporting rib T8 of the eighth segment S8 (see FIG Fig. 4 ) is positively received in the assembled state.

Die erste Transportrippe T1 weist im Bereich des Umfangsrandabschnitts URs eine minimale Höhe H1 und im Bereich des ersten Durchbruchs D1 eine maximale Höhe H2 auf (siehe Fig. 5). Ein Verhältnis H1/H2 liegt im Bereich 1/5 bis 1/100, vorzugsweise im Bereich von 1/5 bis 1/20.The first transport rib T1 has a minimum height H1 in the region of the peripheral edge section URs and a maximum height H2 in the region of the first breakthrough D1 (see FIG Fig. 5 ). A ratio H1 / H2 is in the range of 1/5 to 1/100, preferably in the range of 1/5 to 1/20.

Wie insbesondere aus den Fig. 1 bis 3 ersichtlich ist, nimmt der Winkel α zwischen der ersten Transportrippe T1 und der Oberseite O vom Umfangsrand UR zum Anschlussstück 2 hin ab, so dass die erste Transportrippe T1 insbesondere im Bereich des ersten Durchbruchs D1 zum ersten Durchbruch D1 hin geneigt ist. Die maximale Höhe H2 nimmt vom ersten Durchbruch D1 in Richtung eines Anschlussstückabschnitts 2' wieder ab.As in particular from the Fig. 1 to 3 It can be seen that the angle α between the first transport rib T1 and the upper side O decreases from the peripheral edge UR towards the connection piece 2, so that the first transport rib T1 is inclined in particular in the area of the first opening D1 towards the first opening D1. The maximum height H2 decreases again from the first opening D1 in the direction of a connecting piece section 2 '.

Wie insbesondere aus Fig. 5 hervorgeht, sind die Fügeabschnitte Fa1, Fa2 gekrümmt ausgebildet. Die Fügeabschnitte Fa1, Fa2 und die sich vom ersten Fügeabschnitt Fa1 erstreckende erste Transportrippe T1 verlaufen in einem radial inneren Abschnitt des Rührkörpers 1 etwa radial und biegen dann in eine tangentiale Richtung um, so dass sie im Bereich eines Umfangsrandabschnitts URs schräg dazu verlaufen.As in particular from Fig. 5 shows, the joining sections Fa1, Fa2 are curved. The joining sections Fa1, Fa2 and the first conveying rib T1 extending from the first joining section Fa1 extend approximately radially in a radially inner section of the stirring body 1 and then turn in a tangential direction so that they run obliquely in the region of a peripheral edge section URs.

Der erste Durchbruch D1 wird von der Oberseite O her gesehen durch die konvex gekrümmte Seite der ersten Transportrippe T1 begrenzt. Dasselbe gilt für die Anordnung der weiteren Durchbrüche D2 bis D8 bezüglich der dazu korrespondierenden weiteren Transportrippen T2 bis T8.The first opening D1 is defined by the convex curved side of the first transport rib T1 as viewed from the upper side O. The same applies to the arrangement of the further openings D2 to D8 with respect to the corresponding further transport ribs T2 to T8.

Wie insbesondere in Fig. 6 gezeigt ist, weist der im Wesentlichen nach Art eines Zylindermantelabschnitts ausgebildete Anschlussstückabschnitt 2' einen der stufenartigen Ausbildung des ersten Fügeprofils P1 entsprechenden stufenartigen Versatz V auf. D. h. das erste Fügeprofil P1 erstreckt sich, abgesehen von der durch den ersten Durchbruch D1 gebildeten Unterbrechung, bis in den Anschlussstückabschnitt 2'.As in particular in Fig. 6 1, the connecting piece section 2 'formed essentially in the manner of a cylinder jacket section has a step-like offset V corresponding to the step-like configuration of the first joining profile P1. Ie. the first joining profile P1 extends, except for the interruption formed by the first opening D1, into the connecting piece section 2 '.

Die Fig. 7 und 8 zeigen eine Ausgestaltung des Anschlussstücks 2 in Kombination mit einer Rührwelle 3. Die Rührwelle 3 weist hier axial verlaufende Rippen 4 auf. Die Anschlussstückabschnitte 2' der Segmente sind hier so ausgebildet, dass darin zu den Rippen 4 korrespondierend ausgestaltete Nuten 5 vorgesehen sind, so dass die Rippen 4 formschlüssig in die Nuten 5 eingreifen. Damit kann eine besonders drehfeste Verbindung zwischen dem Rührkörper 1 und der Rührwelle 3 hergestellt werden.The FIGS. 7 and 8 show an embodiment of the connecting piece 2 in combination with a stirring shaft 3. The stirring shaft 3 has here axially extending ribs 4. The connecting piece sections 2 'of the segments are here designed in such a way that grooves 5 correspondingly configured to the ribs 4 are provided, so that the ribs 4 engage in a form-fitting manner in the grooves 5. Thus, a particularly rotationally fixed connection between the stirring body 1 and the stirring shaft 3 can be produced.

Obwohl in den Figuren der Rührkörper 1 eine hyperboloidartige Form aufweist, kann es auch sein, dass der Rührkörper 1 beispielsweise nach Art eines Kegelstumpfs ausgebildet ist.Although in the figures, the stirring body 1 has a hyperboloid-like shape, it may also be that the stirring body 1 is formed, for example, in the manner of a truncated cone.

Die in den Figuren gezeigten Segmente S1 bis S8 sind zweckmäßigerweise baugleich ausgeführt. Sie können einfach in Gusstechnik aus Kunststoff hergestellt werden. Zur Herstellung der Segmente S1 bis S8 eignen sich insbesondere die folgenden Kunststoffe: Polyolefine, insbesondere PP, PS, ABS, PA, POM, EVAC, GFK, NCF, SAN, UP, VPE, Tellene, HDPE und dgl..The segments S1 to S8 shown in the figures are expediently of identical construction. They can be easily made in plastic molding technology. The following plastics are particularly suitable for the production of segments S1 to S8: polyolefins, in particular PP, PS, ABS, PA, POM, EVAC, GRP, NCF, SAN, UP, VPE, Tellene, HDPE and the like.

Der vorliegend beschriebene Rührkörper 1 ist aus acht baugleichen Segmenten S1 bis S8 aufgebaut. Es ist selbstverständlich auch möglich, einen ähnlichen Rührkörper 1 aus einer geringeren oder größeren Anzahl an baugleichen Segmenten herzustellen.The stirring element 1 described here is constructed from eight identical segments S1 to S8. It is of course also possible to produce a similar stirring body 1 from a smaller or larger number of identical segments.

Im gezeigten Ausführungsbeispiel weist jedes der Segmente S1 bis S8 eine Transportrippe T1 bis T8 auf, welche jeweils entlang der einen langen Kante angeordnet ist. Selbstverständlich ist es auch möglich, die Transportrippe T1 bis T8 beispielsweise mittig im Segment S1 vorzusehen. Es ist auch denkbar, Segmente S1 bis S8 ohne Transportrippen T1 bis T8 mit Segmenten S1 bis S8 zu kombinieren, welche Transportrippen T1 bis T8 aufweisen.In the embodiment shown, each of the segments S1 to S8 has a transport rib T1 to T8, which is arranged in each case along the one long edge. Of course, it is also possible to provide the transport rib T1 to T8, for example centrally in the segment S1. It is also conceivable to combine segments S1 to S8 without transport ribs T1 to T8 with segments S1 to S8, which have transport ribs T1 to T8.

Die im vorliegenden Ausführungsbeispiel gezeigten Segmente S1 bis S8 weisen jeweils einen Durchbruch D1 bis D8 auf. Selbstverständlich ist es auch möglich, den Durchbruch D1 bis D8 wegzulassen oder Segmente S1 bis S8 mit Durchbrüchen D1 bis D8 mit weiteren Segmenten S1 bis S8 zu kombinieren, welche keine Durchbrüche D1 bis D8 aufweisen.The segments S1 to S8 shown in the present embodiment each have an opening D1 to D8. Of course, it is also possible to omit the opening D1 to D8 or to combine segments S1 to S8 with openings D1 to D8 with further segments S1 to S8, which have no openings D1 to D8.

Die Segmente S1 bis S8 können vorzugsweise mittels hier nicht näher gezeigter Schraubverbindungen miteinander verbunden werden. Dazu können beispielsweise im Bereich des zweiten Fügeprofils P2 Gewindebuchsen vorgesehen sein. Es ist auch möglich, die Segmente S1 bis S8 zusätzlich zu den angesprochenen Schraubverbindungen miteinander zu verkleben. Zur Erleichterung der Montage des Rührkörpers 1 kann beispielsweise eine Schablone vorgesehen sein, auf welche die Segmente S1 bis S8 aufgelegt und nachfolgend miteinander verbunden werden.The segments S1 to S8 can preferably be connected to one another by means of screw connections (not shown here). For this purpose, for example, threaded bushes can be provided in the region of the second joining profile P2. It is also possible to glue the segments S1 to S8 together in addition to the mentioned screw connections. To facilitate the assembly of the stirring body 1, for example, a template may be provided on which the segments S1 to S8 are placed and subsequently connected to each other.

Der vorgeschlagene Rührkörper 1 lässt sich mit vermindertem Aufwand herstellen und transportieren. Er weist dennoch eine hervorragende Festigkeit auf.The proposed stirring body 1 can be produced and transported with reduced effort. Nevertheless, it has excellent strength.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Rührkörperagitator
22
Anschlussstückconnector
2'2 '
AnschlussstückabschnittNipple portion
33
Rührwelleagitator shaft
44
Ripperib
55
Nutgroove
AA
Ausnehmungrecess
DD
Dickethickness
D1 bis D8D1 to D8
Durchbruchbreakthrough
F1 bis F8F1 to F8
Fügezonejoint zone
Fa1fa1
erste Fügeabschnittfirst joining section
Fa2f a2
zweiter Fügeabschnittsecond joining section
H1H1
minimale Höheminimum height
H2H2
maximale Höhemaximum height
OO
Oberseitetop
P1P1
erstes Fügeprofilfirst joining profile
P2P2
zweites Fügeprofilsecond joining profile
S1 bis S8S1 to S8
Segmentsegment
St1St1
erster Stegfirst jetty
T1 bis T8T1 to T8
Transportrippetransport rib
UU
Unterseitebottom
URUR
Umfangsrandcircumferential edge
URsUR
UmfangsrandabschnittPeripheral edge portion
VV
Versatzoffset
αα
Winkelangle

Claims (22)

  1. A stirring body (1), in particular for generating a current in a wastewater treatment tank, said stirring body having a hyperboloid-like or truncated cone-like form and a central connector piece (2) for connecting to a stirring shaft (3),
    characterised in that
    the stirring body (1) is formed from a plurality of segments (S1 ... S8), which are interconnected along joining zones (F1 ... F8) extending from a peripheral edge (UR) in the direction of the connector piece (2).
  2. The stirring body according to claim 1, wherein the segments (S1 ... S8) each have a first joining portion (Fa1) with a first joining profile (P1) and a second joining portion (Fa2) with a second joining profile (P2) corresponding to the first joining profile (P1).
  3. The stirring body (1) according to claim 2, wherein the first joining profile (P1) is formed in the manner of a step.
  4. The stirring body (1) according to claim 3, wherein a height of the step corresponds to a thickness (D) of the segment (S1 ... S8) in the region of the second joining portion (Fa2).
  5. The stirring body (1) according to any one of claims 2 to 4, wherein an aperture (D1 ... D8) is provided in the segment (S1 ... S8) in the region of the first joining portion (Fa1).
  6. The stirring body (1) according to claim 5, wherein the aperture (D1 ... D8) extends in a radially inner half of the segment (S1 ... S8) along the first joining portion (Fa1).
  7. The stirring body (1) according to claim 5 or 6, wherein a portion of the second joining portion (Fa2) located opposite the aperture (D1 ... D8) in the peripheral direction has a recess (A) at the edge.
  8. The stirring body (1) according to any one of the preceding claims, wherein a plurality, preferably all, of the segments (S1 ... S8) each have a transport rib (T1 ... T8) extending from the peripheral edge portion (URs) of said segment to the connector piece portion (2') of said segment.
  9. The stirring body (1) according to claim 8, wherein a height of the transport rib (T1 ... T8) increases from the peripheral edge portion (URs) to the aperture (D1 ... D8) and then decreases again in the direction of the connector piece portion (2').
  10. The stirring body (1) according to claim 8 or 9, wherein the transport rib (T1 ... T8) extends from the first joining portion (Fa1).
  11. The stirring body (1) according to any one of claims 8 to 10, wherein the transport rib (T1 ... T8) delimits the aperture (D1 ... D8) in part.
  12. The stirring body (1) according to any one of claims 2 to 11, wherein the first (Fa1) and the second joining portion (Fa2) are curved in a radial direction from the peripheral edge (UR) in the direction of the connector piece (2).
  13. The stirring body (1) according to any one of claims 2 to 12, wherein mating means corresponding to one another are provided on the first (Fa1) and on the second joining portion (Fa2).
  14. The stirring body (1) according to any one of claims 2 to 13, wherein fastening means corresponding to one another are provided on the first (Fa1) and on the second joining portion (Fa2).
  15. The stirring body (1) according to any one of claims 5 to 14, wherein the connector piece (2) has further apertures for guiding through fastening means for fastening to a stirring shaft (3).
  16. The stirring body (1) according to any one of the preceding claims, wherein the segments (S1 ... S8) are produced from a cast plastic or from metal.
  17. The stirring body (1) according to claim 16, wherein the plastic is selected from the following group: polyolefins, in particular PP, PS, PA, POM, EVAC, GFK, NCF, SAN, UP, VPE, Tellene, ABS, HDPE.
  18. The stirring body (1) according to any one of the preceding claims, wherein a connection element for connection to the stirring shaft (3) is mounted on the connector piece (2).
  19. The stirring body (1) according to any one of the preceding claims, wherein the segments (S1 ... S8) are screwed and/or adhesively bonded to one another.
  20. The stirring body (1) according to any one of the preceding claims, wherein the segments (S1 ... S8) are structurally identical.
  21. A stirring device for generating a current in a wastewater treatment tank, in which a stirring body (1) according to any one of the preceding claims is mounted on a stirring shaft (3) extending from a drive arrangement.
  22. The stirring device according to claim 21, wherein the stirring shaft (3) has axially extending ribs (4), which engage with corresponding grooves (5) on the connector piece (2).
EP14784460.9A 2013-12-11 2014-10-15 Agitating member and agitating device for creating a current in a wastewater treatment basin Active EP3079800B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14784460T PL3079800T3 (en) 2013-12-11 2014-10-15 Agitating member and agitating device for creating a current in a wastewater treatment basin

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013225658.2A DE102013225658A1 (en) 2013-12-11 2013-12-11 Agitator and stirrer for generating a flow in a waste water treatment tank
PCT/EP2014/072111 WO2015086198A1 (en) 2013-12-11 2014-10-15 Agitating member and agitating device for creating a current in a wastewater treatment basin

Publications (2)

Publication Number Publication Date
EP3079800A1 EP3079800A1 (en) 2016-10-19
EP3079800B1 true EP3079800B1 (en) 2018-01-31

Family

ID=51730518

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14784460.9A Active EP3079800B1 (en) 2013-12-11 2014-10-15 Agitating member and agitating device for creating a current in a wastewater treatment basin

Country Status (16)

Country Link
US (1) US10130921B2 (en)
EP (1) EP3079800B1 (en)
JP (1) JP6524092B2 (en)
KR (1) KR102259793B1 (en)
CN (1) CN105848770B (en)
BR (1) BR112016013447B1 (en)
CA (1) CA2932047C (en)
DE (1) DE102013225658A1 (en)
DK (1) DK3079800T3 (en)
ES (1) ES2661242T3 (en)
HU (1) HUE037400T2 (en)
IL (1) IL245747B (en)
MX (1) MX2016007477A (en)
PL (1) PL3079800T3 (en)
TW (1) TWI638782B (en)
WO (1) WO2015086198A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013225658A1 (en) * 2013-12-11 2015-06-11 Invent Umwelt- Und Verfahrenstechnik Ag Agitator and stirrer for generating a flow in a waste water treatment tank
DE102013225662A1 (en) * 2013-12-11 2015-06-11 Invent Umwelt- Und Verfahrenstechnik Ag Stirring device for circulating wastewater and equipment received in a basin
DE102013225659A1 (en) * 2013-12-11 2015-06-11 Invent Umwelt- Und Verfahrenstechnik Ag Device for circulating a liquid received in a container
CN106731952B (en) * 2017-01-18 2023-10-27 北京首创环境科技有限公司 Stirring device
USD882634S1 (en) * 2018-02-28 2020-04-28 Econtrols, Llc Fluid mixer
DE102018119039A1 (en) 2018-08-06 2020-02-06 Invent Umwelt-Und Verfahrenstechnik Ag Immersion mixer for circulating drinking water
JP7237561B2 (en) * 2018-12-19 2023-03-13 プライミクス株式会社 Stirrer and Stirrer
CN109824104A (en) * 2019-04-10 2019-05-31 尚川（北京）水务有限公司 A kind of Double-curved-surface stirring device
DE102019111492A1 (en) 2019-05-03 2020-11-05 Invent Umwelt-Und Verfahrenstechnik Ag Propeller and agitator for circulating wastewater in a clarifier
CN114055632B (en) * 2021-10-28 2022-11-22 武汉兴诚海水泥制品有限公司 Environment-friendly low-radiation concrete production system and production process
CN116351272A (en) * 2023-03-28 2023-06-30 深圳市尚水智能股份有限公司 Mixing impeller and pulping equipment

Family Cites Families (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US888199A (en) 1907-08-13 1908-05-19 George J Stafford Concrete-mixer.
US1687660A (en) * 1925-11-19 1928-10-16 Cummer Frederick Henry Mixer for road materials
US1712549A (en) * 1928-02-28 1929-05-14 Castellano Philip Road-making machine
US1741013A (en) * 1928-08-06 1929-12-24 Frederick H Cummer Mixer for road materials
US1917867A (en) * 1930-10-08 1933-07-11 Cinderella Washing Machine Com Agitator for washing machines
US2123600A (en) * 1937-02-11 1938-07-12 Galante Antonio Mixer can
US2636720A (en) * 1946-06-29 1953-04-28 Allis Chalmers Mfg Co Agitating impeller
US2563937A (en) * 1949-09-10 1951-08-14 Celanese Corp Mixing apparatus
US2869840A (en) * 1956-05-25 1959-01-20 Cincinnati Butchers Supply Co Agitating apparatus
US4304494A (en) * 1980-02-28 1981-12-08 Kenco Engineering, Inc. Slip-on shroud for asphalt mixer paddle
JPS56121584A (en) * 1980-03-03 1981-09-24 Matsushita Electric Ind Co Ltd Agitating blade for washing machine
JPS637297Y2 (en) * 1984-11-26 1988-03-02
DE3603466A1 (en) * 1985-05-31 1987-08-06 Franz Dr Ing Nestmann Apparatus for introducing gas into and circulating liquids in tanks
DE3519520A1 (en) * 1985-05-31 1986-12-04 Durst Franz Vortex cone stirrer & sparger apparatus for sparging and circulating liquids in basins
US5152606A (en) * 1990-07-27 1992-10-06 General Signal Corporation Mixer impeller shaft attachment apparatus
DE9106639U1 (en) 1991-05-30 1991-09-05 Bischof, Franz, Dipl.-Ing., 8500 Nuernberg Hyperboloid stirring and gassing system for stirring, mixing and gassing in single or multi-phase fluids
DE4218027A1 (en) * 1991-05-30 1992-12-03 Marcus Dipl Ing Hoefken Fluid agitation and aeration - has hyperboloid agitator body which separates actions for min. energy consumption
JPH0663372A (en) * 1992-03-11 1994-03-08 Toshiba Tungaloy Co Ltd Stirring blade and its production
DE4226498A1 (en) * 1992-08-11 1994-02-17 Klein Schanzlin & Becker Ag Agitator propeller
JPH07195584A (en) * 1993-12-28 1995-08-01 Yokohama Rubber Co Ltd:The Manufacture of paper can of sealing material
IT1271271B (en) * 1994-02-08 1997-05-27 Fischer Georg Giessereianlagen DEVICE FOR THE MIXING AND PREPARATION OF SLIDING MATERIALS
DE29803497U1 (en) * 1998-02-27 1999-06-24 Invent Umwelt Und Verfahrenste Agitator arrangement
DE19814819A1 (en) * 1998-04-02 1999-10-07 Leonhard Fuchs Centrifugal aerator
EP1083005A3 (en) * 1999-08-11 2004-12-15 Tah Industries, Inc. A static mixer nozzle and attachment accessory configuration
DE20207376U1 (en) * 2002-05-10 2003-06-26 Invent Umwelt Und Verfahrenste Stirring and gassing device for activated sludge
DE102005016948B3 (en) * 2005-04-12 2007-01-04 Invent Umwelt-Und Verfahrenstechnik Ag Stirring device and process for wastewater treatment
DE102007013630B4 (en) * 2007-03-19 2009-10-29 Invent Umwelt-Und Verfahrenstechnik Ag Drive device for immersion operation below a liquid surface and immersion agitator
WO2009018873A1 (en) * 2007-08-09 2009-02-12 Invent Umwelt-Und Verfahrenstechnik Ag Stirring device for activated sludges
DE102007037586B3 (en) * 2007-08-09 2008-09-18 Invent Umwelt- Und Verfahrenstechnik Ag Stirring device for activated sludge
DK2175973T3 (en) * 2007-08-09 2011-08-29 Invent Umwelt & Verfahrenstech Activated sludge stirrer
US7473025B1 (en) * 2008-01-31 2009-01-06 Spx Corporation Mixing impeller with spiral leading edge
DE102010000730B4 (en) * 2010-01-07 2011-12-15 Invent Umwelt- Und Verfahrenstechnik Ag Vertical agitator for wastewater collected in a clarifier
USD665047S1 (en) * 2010-02-11 2012-08-07 Invent Umwelt-Und Verfahrenstechnik Ag Stirring body
DE102013225662A1 (en) * 2013-12-11 2015-06-11 Invent Umwelt- Und Verfahrenstechnik Ag Stirring device for circulating wastewater and equipment received in a basin
TWD173920S (en) * 2013-12-11 2016-02-21 英凡特環工工程股份公司 A stirring body of a stirring device
DE102013225659A1 (en) * 2013-12-11 2015-06-11 Invent Umwelt- Und Verfahrenstechnik Ag Device for circulating a liquid received in a container
DE102013225658A1 (en) * 2013-12-11 2015-06-11 Invent Umwelt- Und Verfahrenstechnik Ag Agitator and stirrer for generating a flow in a waste water treatment tank
JP1522111S (en) * 2013-12-11 2015-04-20
DE102014204824A1 (en) * 2014-03-14 2015-09-17 Invent Umwelt-Und Verfahrenstechnik Ag Stirring device for wastewater

Also Published As

Publication number Publication date
DK3079800T3 (en) 2018-05-07
IL245747B (en) 2019-12-31
MX2016007477A (en) 2016-08-03
BR112016013447A2 (en) 2017-08-08
WO2015086198A1 (en) 2015-06-18
KR102259793B1 (en) 2021-06-02
BR112016013447B1 (en) 2022-02-01
CN105848770B (en) 2019-01-04
ES2661242T3 (en) 2018-03-28
KR20160098329A (en) 2016-08-18
US20170021313A1 (en) 2017-01-26
TWI638782B (en) 2018-10-21
JP2017502826A (en) 2017-01-26
PL3079800T3 (en) 2018-06-29
HUE037400T2 (en) 2018-08-28
US10130921B2 (en) 2018-11-20
DE102013225658A1 (en) 2015-06-11
CA2932047C (en) 2021-07-13
TW201522238A (en) 2015-06-16
CN105848770A (en) 2016-08-10
CA2932047A1 (en) 2015-06-18
EP3079800A1 (en) 2016-10-19
IL245747A0 (en) 2016-07-31
JP6524092B2 (en) 2019-06-05

Similar Documents

Publication Publication Date Title
EP3079800B1 (en) Agitating member and agitating device for creating a current in a wastewater treatment basin
DE4136293B4 (en) Impeller for a blower, especially a radial blower
EP2143953B1 (en) Pump power unit
EP3079801B1 (en) Stirring element for circulating wastewater in a basin, and apparatus
DE102010010987A1 (en) Leaf spring connection
EP3181908B1 (en) Multi-stage centrifugal pump having tension anchors made of sheet metal
EP2261113A2 (en) Propeller
WO2014166742A1 (en) Pulley and gear nut with such a pulley
DE102013110671B4 (en) Wear body for receiving a twin screw for the extrusion of meltable material
DE102013225659A1 (en) Device for circulating a liquid received in a container
EP2228541A1 (en) Rotor for a rotary pump
EP2670993A2 (en) Segmented cage and method for assembling a rolling bearing
DE102016219418A1 (en) liquid pump
EP1715200B1 (en) Ball joint connection
DE102011012938A1 (en) Fastening arrangement for plastic part, particularly fiber composite-plastic part, to structural part of motor vehicle, has adapter that is connected with plastic part over adhesive connection
DE102009008662A1 (en) Composite component for use as hybrid component, has two support components which are provided for forming hybrid component sectionally with plastics, where support components are directly connected together over contact area
DE102010053691A1 (en) Elastic coupling element for connection of two drive shafts, has axially aligned openings, through which connection elements are guided
DE102012011860A1 (en) Component for motor vehicle, has base component formed from fiber-reinforced plastic, where base component is provided with connecting element, and base component has through hole, in which insert element is arranged
DE202014006073U1 (en) Divisible board
DE10335966B3 (en) Eccentric spiral pump for pumping has intermediate shaft with at least two offset webs with intermediate wall between them
EP1178216B1 (en) Pump housing
EP4070691A1 (en) Shelf separator
DE102014202645A1 (en) Connecting device for a FRP component
DE102020205971A1 (en) Pulley and steering gear
AT514628A2 (en) HANDLE FITTING

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20160324

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20171103

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 966830

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502014007154

Country of ref document: DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2661242

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20180328

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20180504

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180430

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180131

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180131

REG Reference to a national code

Ref country code: HU

Ref legal event code: AG4A

Ref document number: E037400

Country of ref document: HU

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180531

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180430

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180131

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180131

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180131

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180131

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180131

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180131

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502014007154

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180131

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180131

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20181102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181015

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180131

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180131

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502014007154

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: B01F0007000000

Ipc: B01F0027000000

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20231023

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231025

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20231117

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20231025

Year of fee payment: 10

Ref country code: IT

Payment date: 20231031

Year of fee payment: 10

Ref country code: IE

Payment date: 20231019

Year of fee payment: 10

Ref country code: HU

Payment date: 20231005

Year of fee payment: 10

Ref country code: FR

Payment date: 20231023

Year of fee payment: 10

Ref country code: FI

Payment date: 20231023

Year of fee payment: 10

Ref country code: DK

Payment date: 20231025

Year of fee payment: 10

Ref country code: DE

Payment date: 20231018

Year of fee payment: 10

Ref country code: CZ

Payment date: 20231002

Year of fee payment: 10

Ref country code: CH

Payment date: 20231102

Year of fee payment: 10

Ref country code: AT

Payment date: 20231019

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20230929

Year of fee payment: 10

Ref country code: BE

Payment date: 20231023

Year of fee payment: 10

P01 Opt-out of the competence of the unified patent court (upc) registered

Free format text: CASE NUMBER: APP_36605/2024

Effective date: 20240619