EP2937138B1 - Inliner for lining a mixing container, assembly comprising a mixing container and inliner inserted therein and method for operating an industrial mixing machine equipped with a mixing container which is lined with such an inliner - Google Patents

Inliner for lining a mixing container, assembly comprising a mixing container and inliner inserted therein and method for operating an industrial mixing machine equipped with a mixing container which is lined with such an inliner Download PDF

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Publication number
EP2937138B1
EP2937138B1 EP14179640.9A EP14179640A EP2937138B1 EP 2937138 B1 EP2937138 B1 EP 2937138B1 EP 14179640 A EP14179640 A EP 14179640A EP 2937138 B1 EP2937138 B1 EP 2937138B1
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EP
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Prior art keywords
mixing
inliner
mixing container
container
outlet
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EP14179640.9A
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German (de)
French (fr)
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EP2937138A1 (en
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Dr Herfeld GmbH and Co KG
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Dr Herfeld GmbH and Co KG
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/50Mixing receptacles
    • B01F35/511Mixing receptacles provided with liners, e.g. wear resistant or flexible liners
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/805Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/75Discharge mechanisms
    • B01F35/754Discharge mechanisms characterised by the means for discharging the components from the mixer
    • B01F35/7547Discharge mechanisms characterised by the means for discharging the components from the mixer using valves, gates, orifices or openings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30Driving arrangements; Transmissions; Couplings; Brakes
    • B01F2035/35Use of other general mechanical engineering elements in mixing devices
    • B01F2035/353Lubricating systems

Definitions

  • the invention relates to an inliner for lining a mixed container, as they are used in industrial mixing machines.
  • the invention relates to an inliner for lining a top side of a filling opening and a radially outwardly projecting flange and the underside an outlet channel with therein from an open position to a closed position and vice versa adjustable outlet flap having mixing container, for the operation of the Mixing of therein introduced pourable mix to a one or more mixing tools supporting mixing head of an industrial mixing machine can be connected, which inliner on the upper side a radially outwardly projecting and, when used in the mixing container, for abutment with the flange of the mixing container reaching flange carries and the underside having a projecting into the outlet channel of the mixing container outlet channel extension, which extends with such a length in the outlet channel of the mixing container that this is at least up to the befin in its closed position dlichen outlet flap is enough.
  • an arrangement comprising a mixing container with an inliner inserted there
  • Such a mixing container is a roundish steel container. This has on the upper side a filling opening and in the region of its upper end on an outwardly projecting container flange.
  • Such a mixing container usually has an upper cylindrical portion, adjacent to the down to a discharge opening towards a conical-shaped portion, through the manner of a funnel, the inner diameter of the mixing container to the underside arranged outlet channel tapers. Within the outlet channel an outlet flap is arranged. This is mounted on an axle and can be adjusted between an open position and a closed position and vice versa.
  • the outlet channel also typically has a circular cross-sectional area.
  • the correspondingly circular or with a certain ovality respects their outer contour manufactured run-up flap carries on the outside circumferentially a seal which acts in the closed position of the outlet flap against the inner wall of the bake channel.
  • the mixing container is then closed.
  • the mixing container is connected with its container flange to the complementary flange of a mixing head of an industrial mixing machine.
  • the mixing head itself carries one or more mixing tools. If the mixing container filled with the mixture to be mixed is connected to the mixing head, this unit is rotated by about 180 degrees so that the mixing head is at the bottom and the mixing container is at the top. In this position, the mix initially located in the mixing container falls on the mixing tools.
  • the mixing chamber in which the mix is mixed, is thus formed from the space provided by the mixing container cavity and that of the mixing head.
  • the at least one mixing tool is rotationally driven and generates a mixed material flow in the mixing space formed by the mixing container and the mixing head, typically in the manner of a thrombus.
  • a certain heat input into the mix is unavoidable when performing a mixing due to shear forces occurring especially between the one or more mixing tools and the particles of the mix, but also when hitting Mischgutpellen on the inner wall of the mixing container. This sometimes leads to material caking on the mixing container wall, especially in those areas on which the mixed material stream impinges.
  • This known inliner has on its underside an outlet extension with an end-side flange, which is passed through a corresponding opening in the mixing container, so that the outside flange bears against the outside of the mixing container.
  • This outlet opening of the inliner is arranged in the region of a dispensing valve.
  • the dispensing valve is a stopper which is inserted from the outside into the dispensing opening of the mixing container, which is completely lined with the inliner. A controlled output is not possible by such an outlet.
  • an assembly of the inliner with its through the outlet opening of the mixing container extending through extension is considered cumbersome.
  • US 5,727,878 Another flexible inliner for use in a mixed container is out US 5,727,878 known.
  • US 6,505,657 B1 known inliner has the in US 5,727,878 described inliner does not have an outlet opening.
  • US 2,797,903 describes an inliner for a mixing machine with a lower-side outlet opening into which the inliner, however, does not extend. Based on this discussed prior art, the invention is therefore based on the object to propose a solution, whereby the cleaning of a mixing container is considerably simplified.
  • an inliner for lining a top side of a filling opening and a radially outwardly projecting flange and the underside an outlet channel with a therein from an open position to a closed position and reversibly adjustable outlet flap having mixing container, wherein the outlet channel extension of the inliner has diametrically opposite Achsaus traditions, are provided by the two extending over the outlet flap of the mixing container in its closed position extending clamping extensions.
  • the inside wall of the mixing container does not come into contact with the mix, especially during the mixing process.
  • the inliner itself is a component typically made of a film which can be used for one or more mixing processes with the same mix.
  • Such an inliner is typically a disposable product and can be produced particularly inexpensively, for example, from plastic. It is envisaged that the inliner after a mixing process, when subsequently another mixture is to be mixed, is removed from the mixing container and disposed of.
  • the inliner itself is detachably inserted into the cavity of the mixing container.
  • the cleaning of the mixing container itself is therefore basically limited to the area of the outlet flap or the outlet channel. Since these are not flowed through in a mixing process of the Mischgutstrom, at least not directly, no caking can occur on this. Accordingly easy is the cleaning. Typically, a simple wiping of the mixing container is sufficient to remove remaining Mischgutp
  • the decisive factor is that not only the time for cleaning the mixing container itself has been significantly reduced, but also a costly cleaning of the cleaning liquid before it can be disposed of, is eliminated. Some users of such industrial mixing machines have washing facilities for washing out the used mixing containers. The resulting cleaning liquid must be specially disposed of or in turn cleaned. When using a low-cost, designed as inliner disposable product, this problem does not exist.
  • Such an inliner corresponds in terms of its dimensions to the dimensions of the cavity of the mixing container. Without much effort, such an inliner can be made from a suitable plastic. Typically, the plastic used to make the liner is inert with respect to the mix to be blended therein. Particularly advantageous is the use of a polyethylene material, in particular a so-called LDPE for the production of the inliner. An LDPE material for the production of the inliner is especially suitable if color pigments are to be mixed in the inliner.
  • the wall thickness of the inliner used is sufficient to withstand the stresses occurring during the mixing process. This relates to a certain temperature resistance as well as a sufficient mechanical stability with respect to the mixed material particles impinging thereon in the course of the mixing process. Therefore you will not choose the wall thicknesses too thin. Typical is a wall thickness of about 0.5 to 1.5 mm.
  • inliner can be made in one piece, it is also possible to assemble this from several individual parts. These are then preferably welded together. In the case of an inliner with an upper cylindrical section, a conically tapered section adjoining thereto and an outlet channel, this will be produced in four parts, which are then joined together by welding. These items are the upper cylindrical portion, the tapered portion, the cylindrical outlet channel portion, and the flange disposed externally with respect to the filler opening.
  • a made of a steel mixing container 1 sits on a carriage 2.
  • the carriage 2 is used to move the mixing container 1.
  • the mixing container 1 summarizes a cavity 3 a.
  • the mixing container 1 is open on the upper side, wherein the upper opening serves as a filling opening 4.
  • the filling opening 4 is bordered in the radial direction to the outside by a radially projecting Mischcontainerflansch 5.
  • the flange 5 serves to connect the mixing container 1 to a mixing head of an industrial mixing machine carrying one or more mixing tools.
  • the adjacent to the flange 5 section 6 of the mixing container 1 is designed annular cylindrical. At this bordering the underside of an inner width of the annular cylindrical portion 6 tapering section 7, which merges into a lower outlet channel 8.
  • an outlet flap is arranged, which can be adjusted between an open position and a closed position and vice versa.
  • the outlet flap is adjustable by a pivoting movement.
  • the pivot axis is in FIG. 1 indicated by the reference numeral 9.
  • To adjust the outlet flap is a handle 10. In the closed position of the outlet flap this is sealed against the inner wall of the outlet channel 8 at. In the open position, the plane of the outlet flap 8 extends parallel or approximately parallel to the inner wall of the outlet channel 8.
  • mixing container 1 is ultimately one such as this is known and is often already used.
  • an inliner 11 Before mixing material to be mixed is introduced into the cavity 3 of the mixing container 1 when the outlet flap is closed, an inliner 11 is inserted into the mixing container 1.
  • the inliner 11 thus dresses in the manner of a Protective film the interior of the mixing container 1 completely.
  • the size and dimension of the inliner 11 is adapted to the size of the interior 3 of the mixing container 1.
  • the inliner 11 rests with its outer side against the inner wall of the mixing container 1.
  • the inliner 11 likewise has a ring-cylindrical section 12, a tapered section 13 adjoining thereto and an outlet channel extension 14, which extends into the outlet channel 8 of the mixing container 1.
  • the outlet channel extension 14 extends beyond the outlet flap into the outlet channel 8.
  • the inliner 11 of the illustrated embodiment consists of a low density polyethylene - a so-called LDPE.
  • the inliner 11 is composed of four individual prefabricated parts, which are joined together by welding.
  • the items are the outlet channel extension 14, the two sections 12, 13 and the clamping flange 17.
  • the costs for the production of the liner 11 are very low, compared to the costs associated with the cost of cleaning the interior of the mixing container 1 after a Mixing process are connected.
  • the inliner shown in the figures is a disposable product. This is designed so that in principle a mixing process can be performed.
  • the inliner 11 can also be left in the mixing container 1 after a first mixing operation, if several consecutively Batches one and the same mix in the mixing container 1 to be mixed.
  • the design of the inliner 11 in the illustrated embodiment is provided such that it can be used for several mixing operations.
  • FIG. 2 shows the mixing container 1, connected to the mixing head 18 of an industrial mixing machine 19. Within the mixing head are set in rotary motion displaceable mixing tools. An electric motor 20 is used for driving the same.
  • the mixing container 1 is brought with its previously inserted therein inliner 11 and the filled mix with its flange 5 to a complementary flange 21 of the mixing head 18 and is pressed by a clamping device 22 against the mixing head flange 21. Between the two flanges 5, 21 of the clamping flange 17 of the inliner 11 is turned on. If it is not possible to dispense with a seal which is otherwise required between the flanges 5, 21, it is provided according to a further development to apply such to the flange 17 of the inliner, for example by vulcanization.
  • a mixing chamber formed by the cavity 3 of the mixing container 1 and the interior of the mixing head 18 is built up with a certain overpressure. This serves the purpose that the inliner 11 remains for the process of mixing in its contact position on the inner wall of the mixing container 1, so as not to hinder the mixing process.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Accessories For Mixers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Description

Die Erfindung betrifft einen Inliner zum Auskleiden eines Mischcontainers, wie diese bei industriellen Mischmaschinen zum Einsatz gelangen. Insbesondere betrifft die Erfindung einen Inliner zum Auskleiden eines oberseitig eine Einfüllöffnung sowie einen in radialer Richtung nach außen abragenden Flansch und unterseitig einen Auslaufkanal mit einer darin von einer Offen-Stellung in eine Geschlossen-Stellung und umgekehrt verstellbaren Auslaufklappe aufweisenden Mischcontainers, der für den Vorgang des Mischens von darin eingebrachtem schüttfähigem Mischgut an einen ein oder mehrere Mischwerkzeuge tragenden Mischkopf einer industriellen Mischmaschine anschließbar ist, welcher Inliner oberseitig einen in radialer Richtung nach außen abragenden und, wenn in den Mischcontainer eingesetzt, zur Anlage an dem Flansch des Mischcontainers gelangenden Flansch trägt und unterseitig einen in den Auslaufkanal des Mischcontainers hineinragenden Auslaufkanalfortsatz aufweist, der mit einer solchen Länge in den Auslaufkanal des Mischcontainers hineinreicht, dass dieser zumindest bis zu der sich in ihrer Geschlossen-Stellung befindlichen Auslaufklappe reicht. Beschrieben sind des Weiteren eine Anordnung umfassend einen Mischcontainer mit einem darin eingesetzten Inliner sowie ein Verfahren zum Betreiben einer industriellen Mischermaschine mit einem mit einem Inliner ausgekleideten Mischcontainer.The invention relates to an inliner for lining a mixed container, as they are used in industrial mixing machines. In particular, the invention relates to an inliner for lining a top side of a filling opening and a radially outwardly projecting flange and the underside an outlet channel with therein from an open position to a closed position and vice versa adjustable outlet flap having mixing container, for the operation of the Mixing of therein introduced pourable mix to a one or more mixing tools supporting mixing head of an industrial mixing machine can be connected, which inliner on the upper side a radially outwardly projecting and, when used in the mixing container, for abutment with the flange of the mixing container reaching flange carries and the underside having a projecting into the outlet channel of the mixing container outlet channel extension, which extends with such a length in the outlet channel of the mixing container that this is at least up to the befin in its closed position dlichen outlet flap is enough. Also described are an arrangement comprising a mixing container with an inliner inserted therein and a method for operating an industrial mixer machine with a mixing container lined with an inliner.

Industrielle Mischmaschinen der in Rede stehenden Art werden zum Mischen von schüttfähigem Mischgut eingesetzt. Ein typisches Einsatzgebiet derartiger Mischmaschinen ist das Mischen von Farbpigmenten oder die Bereitstellung von Kunststoffgranulaten, wie diese von der Kunststoff verarbeitenden Industrie als Rohmaterial benötigt werden. Bei einem solchem Mischcontainer handelt es sich um einen im Querschnitt rundlichen Stahlcontainer. Dieser weist oberseitig eine Einfüllöffnung und im Bereich seines oberen Abschlusses einen nach außen abragenden Containerflansch auf. Ein solcher Mischcontainer verfügt in aller Regel über einen oberen zylindrischen Abschnitt, an den nach unten zu einer Entleerungsöffnung hin ein kegelkopfförmiger Abschnitt grenzt, durch den nach Art eines Trichters der Innendurchmesser des Mischcontainers zu dem unterseitig angeordneten Auslaufkanal hin verjüngt ist. Innerhalb des Auslaufkanals ist eine Auslaufklappe angeordnet. Diese ist auf einer Achse gelagert und kann zwischen einer Offen-Stellung und einer Geschlossen-Stellung und umgekehrt verstellt werden. Der Auslaufkanal weist typischerweise ebenfalls eines kreisrunde Querschnittsfläche auf. Die dementsprechend kreisrund oder mit einer gewissen Ovalität hinsichtlicht ihrer Außenkontur gefertigte Auflaufklappe trägt außenseitig umlaufend eine Dichtung, die in der Geschlossen-Stellung der Auslaufklappe gegen die Innenwand des Auflaufkanals wirkt. Der Mischcontainer ist dann verschlossen. Zum Mischen wird der Mischcontainer mit seinem Containerflansch an den komplementären Flansch eines Mischkopfes einer industriellen Mischmaschine angeschlossen. Der Mischkopf selbst trägt ein oder mehrere Mischwerkzeuge. Ist der mit dem zu mischenden Mischgut befüllte Mischcontainer an dem Mischkopf angeschlossen, wird diese Einheit um etwa 180 Grad gedreht, so dass der Mischkopf zuunterst und der Mischcontainer zuoberst liegt. In dieser Stellung fällt das zunächst in dem Mischcontainer befindliche Mischgut auf die Mischwerkzeuge. Die Mischkammer, in der das Mischgut gemischt wird, wird somit aus dem durch den Mischcontainer bereitgestellten Hohlraum sowie demjenigen des Mischkopfes gebildet. Für den Prozess des Mischens ist das zumindest eine Mischwerkzeug rotatorisch angetrieben und generiert in dem durch den Mischcontainer und den Mischkopf gebildeten Mischraum eine Mischgutströmung, typischerweise nach Art eines Thrombus aus. In aller Regel ist bei dem Durchführen eines Mischvorganges auf Grund auftretender Scherkräfte vor allem zwischen dem oder den Mischwerkzeugen und den Partikeln des Mischgutes, jedoch auch beim Auftreffen von Mischgutpartikeln auf die Innenwand des Mischcontainers ein gewisser Wärmeeintrag in das Mischgut unvermeidbar. Dieses führt mitunter zu Materialanbackungen an der Mischcontainerwand, vor allem in diejenigen Bereiche auf die der Mischgutstrom auftrifft.Industrial mixers of the type in question are used for mixing pourable mix. A typical application of such mixing machines is the mixing of color pigments or the provision of plastic granules, as they are needed by the plastics processing industry as a raw material. Such a mixing container is a roundish steel container. This has on the upper side a filling opening and in the region of its upper end on an outwardly projecting container flange. Such a mixing container usually has an upper cylindrical portion, adjacent to the down to a discharge opening towards a conical-shaped portion, through the manner of a funnel, the inner diameter of the mixing container to the underside arranged outlet channel tapers. Within the outlet channel an outlet flap is arranged. This is mounted on an axle and can be adjusted between an open position and a closed position and vice versa. The outlet channel also typically has a circular cross-sectional area. The correspondingly circular or with a certain ovality respects their outer contour manufactured run-up flap carries on the outside circumferentially a seal which acts in the closed position of the outlet flap against the inner wall of the bake channel. The mixing container is then closed. For mixing, the mixing container is connected with its container flange to the complementary flange of a mixing head of an industrial mixing machine. The mixing head itself carries one or more mixing tools. If the mixing container filled with the mixture to be mixed is connected to the mixing head, this unit is rotated by about 180 degrees so that the mixing head is at the bottom and the mixing container is at the top. In this position, the mix initially located in the mixing container falls on the mixing tools. The mixing chamber, in which the mix is mixed, is thus formed from the space provided by the mixing container cavity and that of the mixing head. For the process of mixing, the at least one mixing tool is rotationally driven and generates a mixed material flow in the mixing space formed by the mixing container and the mixing head, typically in the manner of a thrombus. As a rule, a certain heat input into the mix is unavoidable when performing a mixing due to shear forces occurring especially between the one or more mixing tools and the particles of the mix, but also when hitting Mischgutpartikeln on the inner wall of the mixing container. This sometimes leads to material caking on the mixing container wall, especially in those areas on which the mixed material stream impinges.

Typischerweise werden derartige industrielle Mischmaschinen zum Mischen verschiedener Mischgüter eingesetzt. Vor allem auf Grund der vorbeschriebenen möglichen Anbackungen sind die in Kontakt mit dem Mischgut kommenden Bestandteile der Mischmaschine zu reinigen, bevor ein anderes Mischgut darin gemischt werden kann. Je nach Größe und dem gemischten Material kann allein die Reinigung des Mischcontainers durchaus 1 bis 2 Stunden betragen. Eine Reinigung des Mischkopfes ist hingegen einfacher, da in diesem Wandabbackungen so gut wie nicht vorkommen. Zudem können das bzw. die Mischwerkzeuge abgenommen und ohne weiteres außerhalb des Mischkopfes gereinigt werden. Darüber hinaus ist die zu reinigende Innenoberfläche des Mischkopfes um ein Mehrfaches geringer als diejenige des Mischcontainers.
Ein Inliner mit den Merkmalen des Oberbegriffs des Anspruchs 1 ist aus US 6,505,657 B1 bekannt. Dieser vorbekannte Inliner verfügt an seiner Unterseite über einen Auslauffortsatz mit einem endseitigen Flansch, der durch eine entsprechende Öffnung in dem Mischcontainer hindurchgeführt wird, sodass der außenseitige Flansch an der Außenseite des Mischcontainers anliegt. Angeordnet ist diese Auslassöffnung des Inliners im Bereich eines Ausgabeventils. Als Ausgabeventil dient ein Stopfen, der in die mit dem Inliner vollständig ausgekleidete Ausgabeöffnung des Mischcontainers von außen eingesetzt wird. Eine gesteuerte Ausgabe ist durch einen solchen Auslauf nicht möglich. Zudem wird eine Montage des Inliners mit seinem durch den die Auslauföffnung des Mischcontainers durchreichenden Fortsatz als umständlich angesehen.
Typically, such industrial mixing machines are used to mix different blends. Mainly due to the above-mentioned possible caking, the components of the mixing machine coming into contact with the mix are to be cleaned before another mix can be mixed therein. Depending on the size and the mixed material alone, the cleaning of the mixing container definitely 1 to 2 hours. A cleaning of the mixing head, however, is easier, since in this wall caking as good as not occur. In addition, the or the mixing tools can be removed and easily cleaned outside the mixing head. In addition, the inner surface of the mixing head to be cleaned is several times lower than that of the mixing container.
An inliner with the features of the preamble of claim 1 is made US 6,505,657 B1 known. This known inliner has on its underside an outlet extension with an end-side flange, which is passed through a corresponding opening in the mixing container, so that the outside flange bears against the outside of the mixing container. This outlet opening of the inliner is arranged in the region of a dispensing valve. The dispensing valve is a stopper which is inserted from the outside into the dispensing opening of the mixing container, which is completely lined with the inliner. A controlled output is not possible by such an outlet. In addition, an assembly of the inliner with its through the outlet opening of the mixing container extending through extension is considered cumbersome.

Ein weiterer flexibler Inliner zur Verwendung in einem Mischcontainer ist aus US 5,727,878 bekannt. Im Unterschied zu dem aus US 6,505,657 B1 bekannten Inliner verfügt der in US 5,727,878 beschriebene Inliner nicht über eine Auslauföffnung. US 2,797,903 beschreibt einen Inliner für eine Mischmaschine mit einer unterseitigen Auslauföffnung, in die sich der Inliner jedoch nicht hineinerstreckt.
Ausgehend von diesem diskutierten Stand der Technik liegt der Erfindung daher die Aufgabe zu Grunde, eine Lösung vorzuschlagen, wodurch die Reinigung eines Mischcontainers erheblich vereinfacht wird.
Another flexible inliner for use in a mixed container is out US 5,727,878 known. In contrast to that US 6,505,657 B1 known inliner has the in US 5,727,878 described inliner does not have an outlet opening. US 2,797,903 describes an inliner for a mixing machine with a lower-side outlet opening into which the inliner, however, does not extend.
Based on this discussed prior art, the invention is therefore based on the object to propose a solution, whereby the cleaning of a mixing container is considerably simplified.

Gelöst wird diese Aufgabe erfindungsgemäß durch einen Inliner zum Auskleiden eines oberseitig eine Einfüllöffnung sowie einen in radialer Richtung nach außen abragenden Flansch und unterseitig einen Auslaufkanal mit einer darin von einer Offen-Stellung in eine Geschlossen-Stellung und umgekehrt verstellbaren Auslaufklappe aufweisenden Mischcontainers, bei dem der Auslaufkanalfortsatz des Inliners einander diametral gegenüberliegende Achsausnehmungen aufweist, durch die zwei sich über die in ihrer Geschlossen-Stellung befindlichen Auslaufklappe des Mischcontainers erstreckende Klemmfortsätze bereitgestellt sind.This object is achieved according to the invention by an inliner for lining a top side of a filling opening and a radially outwardly projecting flange and the underside an outlet channel with a therein from an open position to a closed position and reversibly adjustable outlet flap having mixing container, wherein the outlet channel extension of the inliner has diametrically opposite Achsausnehmungen, are provided by the two extending over the outlet flap of the mixing container in its closed position extending clamping extensions.

Durch die Verwendung eines Inliners, der die Innenwand des Mischcontainers auskleidet, kommt die Innenwand des Mischcontainers nicht in Kontakt mit dem Mischgut, vor allem nicht während des Mischprozesses. Folglich bilden sich Wandanbackungen, wenn diese eintreten, auf der Innenseite des Inliners und nicht an der Innenwand des Mischcontainers. Bei dem Inliner selbst handelt es sich um ein typischerweise aus einer Folie gefertigtes Bauteil, welches für einen oder auch für mehrere Mischprozesse mit demselben Mischgut verwendet werden kann. Ein solcher Inliner ist typischerweise ein Einwegprodukt und lässt sich beispielsweise aus Kunststoff besonders kostengünstig herstellen. Vorgesehen ist, dass der Inliner nach einem Mischprozess, wenn anschließend ein anderes Mischgut gemischt werden soll, aus dem Mischcontainer entnommen und entsorgt wird. Der Inliner selbst ist lösbar in den Hohlraum des Mischcontainers eingesetzt.By using an inliner lining the interior wall of the mixing container, the inside wall of the mixing container does not come into contact with the mix, especially during the mixing process. As a result, wall caking, as they occur, form on the inside of the liner and not on the inside wall of the mixing container. The inliner itself is a component typically made of a film which can be used for one or more mixing processes with the same mix. Such an inliner is typically a disposable product and can be produced particularly inexpensively, for example, from plastic. It is envisaged that the inliner after a mixing process, when subsequently another mixture is to be mixed, is removed from the mixing container and disposed of. The inliner itself is detachably inserted into the cavity of the mixing container.

Das Reinigen des Mischcontainers selbst beschränkt sich somit grundsätzlich allein auf den Bereich der Auslaufklappe bzw. den Auslaufkanal. Da diese bei einem Mischprozess von dem Mischgutstrom nicht, jedenfalls nicht direkt angeströmt ist, können auf dieser keine Anbackungen entstehen. Entsprechend einfach ist das Reinigen. Typischerweise ist ein einfaches Auswischen des Mischcontainers ausreichend, um verbliebene Mischgutpartikel zu entfernen. Maßgeblich ist, dass nicht nur die Zeit zum Reinigen des Mischcontainers selbst signifikant reduziert worden ist, sondern dass auch eine aufwändige Reinigung der Reinigungsflüssigkeit, bevor diese entsorgt werden kann, entfällt. Manche Anwender derartiger industrieller Mischmaschinen verfügen über Waschanlagen zum Auswaschen der benutzten Mischcontainer. Die dabei anfallende Reinigungsflüssigkeit muss speziell entsorgt oder ihrerseits wiederum gereinigt werden. Bei der Verwendung eines kostengünstigen, als Inliner ausgelegten Einwegerzeugnisses besteht diese Problematik nicht.The cleaning of the mixing container itself is therefore basically limited to the area of the outlet flap or the outlet channel. Since these are not flowed through in a mixing process of the Mischgutstrom, at least not directly, no caking can occur on this. Accordingly easy is the cleaning. Typically, a simple wiping of the mixing container is sufficient to remove remaining Mischgutpartikel. The decisive factor is that not only the time for cleaning the mixing container itself has been significantly reduced, but also a costly cleaning of the cleaning liquid before it can be disposed of, is eliminated. Some users of such industrial mixing machines have washing facilities for washing out the used mixing containers. The resulting cleaning liquid must be specially disposed of or in turn cleaned. When using a low-cost, designed as inliner disposable product, this problem does not exist.

Ein solcher Inliner entspricht hinsichtlich seiner Bemaßung den Maßen des Hohlraumes des Mischcontainers. Ohne großen Aufwand lässt sich ein solcher Inliner aus einem geeigneten Kunststoff herstellen. Typischerweise ist der für die Herstellung des Inliners verwendete Kunststoff inert in Bezug auf das darin zu mischende Mischgut. Besonders vorteilhaft ist der Einsatz eines Polyethylen-Werkstoffes, insbesondere eines so genannten LDPE zur Herstellung des Inliners. Ein LDPE-Material zur Herstellung des Inliners eignet sich vor allem, wenn in dem Inliner Farbpigmente gemischt werden sollen. Die Wandstärke des eingesetzten Inliners ist hinreichend, um den auftretenden Belastungen beim Mischprozess standzuhalten. Dieses betrifft eine gewisse Temperaturbeständigkeit sowie eine hinreichende mechanische Stabilität gegenüber den darauf in Zuge des Mischprozesses auftreffenden Mischgutpartikeln. Daher wird man die Wandstärken nicht zu dünn wählen. Typisch ist eine Wandstärke von etwa 0,5 bis 1,5 mm.Such an inliner corresponds in terms of its dimensions to the dimensions of the cavity of the mixing container. Without much effort, such an inliner can be made from a suitable plastic. Typically, the plastic used to make the liner is inert with respect to the mix to be blended therein. Particularly advantageous is the use of a polyethylene material, in particular a so-called LDPE for the production of the inliner. An LDPE material for the production of the inliner is especially suitable if color pigments are to be mixed in the inliner. The wall thickness of the inliner used is sufficient to withstand the stresses occurring during the mixing process. This relates to a certain temperature resistance as well as a sufficient mechanical stability with respect to the mixed material particles impinging thereon in the course of the mixing process. Therefore you will not choose the wall thicknesses too thin. Typical is a wall thickness of about 0.5 to 1.5 mm.

Auch wenn grundsätzlich ein solcher Inliner einstückig hergestellt werden kann, besteht auch die Möglichkeit, diesen aus mehreren Einzelteilen zusammenzusetzen. Diese werden dann bevorzugt miteinander verschweißt. Bei einem Inliner mit einem oberen zylindrischen Abschnitt, einem daran angrenzenden konisch verjüngten Abschnitt und einem Auslaufkanal wird man diesen in vier Teilen herstellen, die anschließend miteinander durch eine Schweißung verbunden werden. Bei diesen Einzelteilen handelt es sich um den oberen zylindrischen Abschnitt, den verjüngten Abschnitt, den zylindrischen Auslaufkanalabschnitt sowie den außenseitig in Bezug auf die Einfüllöffnung angeordneten Flansch.Although in principle such an inliner can be made in one piece, it is also possible to assemble this from several individual parts. These are then preferably welded together. In the case of an inliner with an upper cylindrical section, a conically tapered section adjoining thereto and an outlet channel, this will be produced in four parts, which are then joined together by welding. These items are the upper cylindrical portion, the tapered portion, the cylindrical outlet channel portion, and the flange disposed externally with respect to the filler opening.

Unter Verwendung eines solchen Inliners lässt sich ein Verfahren zum Mischen eines schüttfähigen Mischgutes in einem an einen Mischkopf einer industriellen Mischmaschine angeschlossenen Mischcontainers mit folgenden Schritten durchführen:

  • Bereitstellen eines Mischcontainers mit einer oberseitigen Einfüllöffnung sowie einem in radialer Richtung nach außen abragenden Flansch und mit einem unterseitig angeordneten Auslaufkanal mit einer von einer Offen-Stellung und eine Geschlossen-Stellung und umgekehrt verstellbar angeordneten Auslaufklappe,
  • Einsetzen eines Inliners in den Mischcontainer zum Auskleiden seiner Innenwand sowie seines Auslaufkanals, zumindest bis zur Auslaufklappe in ihrer Geschlossen-Stellung reichend,
  • Schließen der Auslaufklappe des Mischcontainers und Einklemmen des oder der sich bis zur Auslaufklappe erstreckenden Bestandteile des Auslaufkanalfortsatzes des Inliners zwischen der Auslaufklappe und der Innenwandung des Auslaufkanals,
  • Befüllen des mit dem Inliner ausgekleideten Mischcontainers mit dem zu mischenden Mischgut durch die obere Einfüllöffnung,
  • Anschließen des Mischcontainers an den Mischkopf einer industriellen Mischmaschine, bei welchem Vorgang der nach außen weisende Flansch des Inliners zwischen dem Mischcontainerflansch und einem komplementären, am Mischkopf angeordneten Flansch eingeklemmt wird,
  • Aufbau eines Überdruckes innerhalb der durch den Mischcontainer mit seinem Inliner und dem Mischkopf gebildeten Mischkammer,
  • Durchführen des Mischprozesses, typischerweise in einer Überkopfanordnung von Mischcontainer und Mischkopf, wobei der Mischkopf unterhalb des Mischcontainers angeordnet ist,
  • nach Abschluss des Mischprozesses: Entfernen des Containers von dem Mischkopf und Entleeren desselben durch Öffnen der Auslaufklappe und Auslaufenlassen des gemischten Mischgutes und
  • anschließend - falls erforderlich - Entnahme des Inliners, wobei dieses vorgenommen wird, wenn in dem Mischcontainer anschließend ein anderes Mischgut gemischt werden soll.
Using such an inliner, a method of mixing a pourable mix in a mixing container connected to a mixing head of an industrial mixer can be accomplished by the following steps:
  • Providing a mixing container with an upper-side filling opening and a flange protruding outwards in the radial direction and having a discharge channel arranged on the underside with an outlet flap adjustably arranged from an open position and a closed position and vice versa;
  • Inserting an inliner in the mixing container for lining its inner wall and its outlet channel, reaching at least to the outlet flap in its closed position,
  • Closing the outlet flap of the mixing container and pinching the one or more components of the outlet channel extension of the inliner extending between the outlet flap and the inner wall of the outlet channel extending to the outlet flap,
  • Filling the mixing container lined with the inliner with the mixture to be mixed through the upper filling opening,
  • Connecting the mixing container to the mixing head of an industrial mixing machine, in which process the outwardly facing flange of the inliner is clamped between the mixing container flange and a complementary flange arranged at the mixing head,
  • Build-up of an overpressure within the mixing chamber formed by the mixing container with its inliner and the mixing head,
  • Carrying out the mixing process, typically in an overhead arrangement of mixing container and mixing head, wherein the mixing head is arranged below the mixing container,
  • After completion of the mixing process: Remove the container from the mixing head and emptying it by opening the outlet flap and leakage of the mixed mix and
  • then - if necessary - removal of the inliner, wherein this is done when in the mixing container then another mix is to be mixed.

Nachfolgend ist die Erfindung anhand eines Ausführungsbeispiels unter Bezugnahme auf die beigefügten Figuren beschrieben. Es zeigen:

Fig. 1:
eine perspektivische Ansicht eines auf einem Wagen sitzenden Mischcontainers und einen darin einzusetzenden Inliner und
Fig. 2:
der Mischcontainer der Figur 1 mit den darin eingesetzten Inliner, angeschlossen an den Mischkopf einer industriellen Mischmaschine.
The invention is described below with reference to an embodiment with reference to the accompanying figures. Show it:
Fig. 1:
a perspective view of sitting on a carriage mixing container and an inliner to be inserted therein and
Fig. 2:
the mixing container the FIG. 1 with the inliners inserted therein, connected to the mixing head of an industrial mixing machine.

Ein aus einem Stahl hergestellter Mischcontainer 1 sitzt auf einem Wagen 2. Der Wagen 2 dient zum Bewegen des Mischcontainers 1. Der Mischcontainer 1 fasst einen Hohlraum 3 ein. Der Mischcontainer 1 ist oberseitig offen, wobei die obere Öffnung als Einfüllöffnung 4 dient. Die Einfüllöffnung 4 ist in radialer Richtung nach außen hin durch einen radial abragenden Mischcontainerflansch 5 eingefasst. Der Flansch 5 dient zum Anschließen des Mischcontainers 1 an einen ein oder mehrere Mischwerkzeuge tragenden Mischkopf einer industriellen Mischmaschine. Der an den Flansch 5 grenzende Abschnitt 6 des Mischcontainer 1 ist ringzylindrisch ausgeführt. An diesen grenzt unterseitig ein die innere Weite des ringzylindrischen Abschnittes 6 verjüngender Abschnitt 7, der in einen unteren Auslaufkanal 8 übergeht. Innerhalb des einer zylindrische innere Mantelfläche aufweisenden Auslaufkanals 8 ist eine Auslaufklappe angeordnet, die zwischen einer Offen-Stellung und einer Geschlossen-Stellung und umgekehrt verstellt werden kann. Die Auslaufklappe ist durch eine Schwenkbewegung verstellbar. Die Schwenkachse ist in Figur 1 mit den Bezugszeichen 9 angedeutet. Zum Verstellen der Auslaufklappe dient eine Handhabe 10. In der Geschlossen-Stellung der Auslaufklappe liegt diese abgedichtet an der Innenwand des Auslaufkanals 8 an. In der Offen-Stellung erstreckt sich die Ebene der Auslaufklappe 8 parallel oder etwa parallel zu der Innenwand des Auslaufkanals 8.A made of a steel mixing container 1 sits on a carriage 2. The carriage 2 is used to move the mixing container 1. The mixing container 1 summarizes a cavity 3 a. The mixing container 1 is open on the upper side, wherein the upper opening serves as a filling opening 4. The filling opening 4 is bordered in the radial direction to the outside by a radially projecting Mischcontainerflansch 5. The flange 5 serves to connect the mixing container 1 to a mixing head of an industrial mixing machine carrying one or more mixing tools. The adjacent to the flange 5 section 6 of the mixing container 1 is designed annular cylindrical. At this bordering the underside of an inner width of the annular cylindrical portion 6 tapering section 7, which merges into a lower outlet channel 8. Within the a cylindrical inner surface having outlet channel 8, an outlet flap is arranged, which can be adjusted between an open position and a closed position and vice versa. The outlet flap is adjustable by a pivoting movement. The pivot axis is in FIG. 1 indicated by the reference numeral 9. To adjust the outlet flap is a handle 10. In the closed position of the outlet flap this is sealed against the inner wall of the outlet channel 8 at. In the open position, the plane of the outlet flap 8 extends parallel or approximately parallel to the inner wall of the outlet channel 8.

Bei dem in Figur 1 gezeigten Mischcontainer 1 handelt es sich letztendlich um einen solchen, wie dieser bekannt ist und vielfach bereits eingesetzt wird.At the in FIG. 1 shown mixing container 1 is ultimately one such as this is known and is often already used.

Bevor zu mischendes Mischgut in den Hohlraum 3 des Mischcontainers 1 bei geschlossener Auslaufklappe eingefüllt wird, wird ein Inliner 11 in den Mischcontainer 1 eingesetzt. Der Inliner 11 kleidet somit nach Art einer Schutzfolie den Innenraum des Mischcontainers 1 vollständig aus. Die Größe und Bemaßung des Inliners 11 ist an die Größe des Innenraums 3 des Mischcontainers 1 angepasst. Somit liegt der Inliner 11 mit seiner Außenseite an der Innenwandung des Mischcontainers 1 an. Der Inliner 11 verfügt entsprechend der Geometrie des Mischcontainers 1 ebenfalls über einen ringzylindrischen Abschnitt 12, einen daran angrenzenden verjüngten Abschnitt 13 sowie einen Auslaufkanalfortsatz 14, der sich in den Auslaufkanal 8 des Mischcontainers 1 hineinerstreckt. Der Auslaufkanalfortsatz 14 reicht bis über die Auslaufklappe hinweg in den Auslaufkanal 8 hinein. Damit dieses möglich ist, sind in den Auslaufkanalfortsatz 15 diametral gegenüberliegende Achsausnehmungen 15 eingebracht. Auf Grund der in Figur 1 gezeigten Perspektive ist nur eine Achsausnehmung 15 erkennbar. In diesen befindet sich bei in den Mischcontainer 1 eingesetztem Inliner 11 die die Schwenkachse 9 bildende Welle, auf der die Auslaufklappe sitzt. Durch die Achsausnehmungen 15 sind zwei Klemmfortsätze 16, 16.1 geschaffen, die sich über die Auslaufklappe hinweg erstrecken, wenn diese sich in ihrer Geschlossen-Stellung befindet. Die Klemmfortsätze 16, 16.1 können sich bis zum unteren Abschluss des Auslaufkanals 8 oder auch darüber hinaus erstrecken. Ferner ist an den ringzylindrischen Abschnitt 12 des Inliners 11 oberseitig ein radial nach außen abragender Klemmflansch 17 angeformt. Dieser liegt bei dem in den Mischcontainer 1 eingesetztem Inliner 11 auf der Oberseite des Mischcontainerflansches 5 auf.Before mixing material to be mixed is introduced into the cavity 3 of the mixing container 1 when the outlet flap is closed, an inliner 11 is inserted into the mixing container 1. The inliner 11 thus dresses in the manner of a Protective film the interior of the mixing container 1 completely. The size and dimension of the inliner 11 is adapted to the size of the interior 3 of the mixing container 1. Thus, the inliner 11 rests with its outer side against the inner wall of the mixing container 1. According to the geometry of the mixing container 1, the inliner 11 likewise has a ring-cylindrical section 12, a tapered section 13 adjoining thereto and an outlet channel extension 14, which extends into the outlet channel 8 of the mixing container 1. The outlet channel extension 14 extends beyond the outlet flap into the outlet channel 8. For this to be possible, 15 diametrically opposed axle recesses 15 are introduced into the outlet channel extension. Due to the in FIG. 1 perspective shown only one Achsausnehmung 15 can be seen. In these is inserted into the mixing container 1 inserted liner 11, the pivot axis 9 forming shaft on which the outlet flap sits. By Achsausnehmungen 15 two clamping extensions 16, 16.1 are provided, which extend over the outlet flap away, when this is in its closed position. The clamping extensions 16, 16.1 may extend to the lower end of the outlet channel 8 or beyond. Furthermore, a radially outwardly projecting clamping flange 17 is integrally formed on the annular cylindrical portion 12 of the liner 11 on the upper side. This is in the inserted into the mixing container 1 inliner 11 on the top of the Mischcontainerflansches 5.

Der Inliner 11 des dargestellten Ausführungsbeispiels besteht aus einem Polyethylen geringer Dichte - einem so genannten LDPE. Zusammengesetzt ist der Inliner 11 bei dem dargestellten Ausführungsbeispiel aus vier einzelnen vorgefertigten Teilen, die durch Schweißen miteinander verbunden sind. Bei den Einzelteilen handelt es sich um den Auslaufkanalfortsatz 14, die beiden Abschnitte 12, 13 und den Klemmflansch 17. Die Kosten für die Herstellung des Inliners 11 sind sehr gering, verglichen mit den Kosten, die mit dem Aufwand einer Innenreinigung des Mischcontainers 1 nach einem Mischvorgang verbunden sind. Bei dem in den Figuren dargestellten Inliner handelt es sich um ein Einwegprodukt. Dieses ist ausgelegt, damit darin grundsätzlich ein Mischvorgang durchgeführt werden kann. Es versteht sich, dass der Inliner 11 in dem Mischcontainer 1 nach einem ersten Mischvorgang auch belassen werden kann, wenn nacheinander mehrere Chargen ein und desselben Mischgutes in dem Mischcontainer 1 gemischt werden sollen. Die Auslegung des Inliners 11 bei dem dargestellten Ausführungsbeispiel ist dergestalt vorgesehen, dass dieser für mehrere Mischvorgänge verwendet werden kann.The inliner 11 of the illustrated embodiment consists of a low density polyethylene - a so-called LDPE. In the illustrated embodiment, the inliner 11 is composed of four individual prefabricated parts, which are joined together by welding. The items are the outlet channel extension 14, the two sections 12, 13 and the clamping flange 17. The costs for the production of the liner 11 are very low, compared to the costs associated with the cost of cleaning the interior of the mixing container 1 after a Mixing process are connected. The inliner shown in the figures is a disposable product. This is designed so that in principle a mixing process can be performed. It is understood that the inliner 11 can also be left in the mixing container 1 after a first mixing operation, if several consecutively Batches one and the same mix in the mixing container 1 to be mixed. The design of the inliner 11 in the illustrated embodiment is provided such that it can be used for several mixing operations.

Figur 2 zeigt den Mischcontainer 1, angeschlossen an den Mischkopf 18 einer industriellen Mischmaschine 19. Innerhalb des Mischkopfes sind in Drehbewegung versetzbare Mischwerkzeuge angeordnet. Zum Antreiben derselben dient ein Elektromotor 20. Der Mischcontainer 1 ist mit dem zuvor darin eingesetzten Inliner 11 und dem eingefüllten Mischgut mit seinem Flansch 5 an einen komplementären Flansch 21 des Mischkopfes 18 herangeführt worden und wird durch eine Spanneinrichtung 22 gegen den Mischkopfflansch 21 gedrückt. Zwischen den beiden Flanschen 5, 21 ist der Klemmflansch 17 des Inliners 11 eingeschaltet. Wenn auf eine ansonsten zwischen den Flanschen 5, 21 notwendige Dichtung nicht verzichtet werden kann, ist gemäß einer Weiterbildung vorgesehen, eine solche auf den Flansch 17 des Inliners Anzubringen, etwa durch Aufvulkanisieren. Dann wird die Funktion einer Abdichtung zwischen dem Mischcontainer 1 und dem Mischkopf 18 ebenfalls dem Inliner zugeordnet, was eine ansonsten notwendige Demontage, Reinigung und eine anschließende erneute Montage der Dichtung von einem dem Containerflansch 5 oder demjenigen des Mischkopfes 18 erspart. In Figur 2 ist dieser Anschluss allerdings ohne eingeschaltete Dichtung durch eine Längsschnittvergrößerung kenntlich gemacht (oben rechts). FIG. 2 shows the mixing container 1, connected to the mixing head 18 of an industrial mixing machine 19. Within the mixing head are set in rotary motion displaceable mixing tools. An electric motor 20 is used for driving the same. The mixing container 1 is brought with its previously inserted therein inliner 11 and the filled mix with its flange 5 to a complementary flange 21 of the mixing head 18 and is pressed by a clamping device 22 against the mixing head flange 21. Between the two flanges 5, 21 of the clamping flange 17 of the inliner 11 is turned on. If it is not possible to dispense with a seal which is otherwise required between the flanges 5, 21, it is provided according to a further development to apply such to the flange 17 of the inliner, for example by vulcanization. Then the function of a seal between the mixing container 1 and the mixing head 18 is also assigned to the inliner, which saves an otherwise necessary disassembly, cleaning and subsequent reassembly of the seal of a container flange 5 or that of the mixing head 18. In FIG. 2 However, this connection is indicated by a longitudinal section enlargement without the seal being switched on (top right).

Unterseitig ist der Inliner 11 in dem Mischcontainer 1 mit seinen beiden Klemmfortsätzen 16, 16.1 in dem Auslaufkanal 8 durch die Auslaufklappe 23 verklemmt gehalten. Die Auslaufklappe 23 ist in der vergrößerten Längsschnittdarstellung der Figur 2 (rechts unten) erkennbar. Die Auslaufklappe 23 ist darin in ihrer Geschlossen-Stellung gezeigt. In dieser wirkt diese mit ihrer Umfangsseite gegen die Innenwandung der Klemmfortsätze 16, 16.1 des Auslaufkanalfortsatzes 14, die wiederum mit ihrer Außenseite gegen die Innenwandung des Auslaufkanals 8 gepresst werden. Eine Fixierung des Inliners 11 im Bereich des Auslaufkanals 8 in der vorbeschriebenen Art und Weise ist notwendig, damit dieser nicht zusammenfällt, wenn sich die aus Mischcontainer 1 und Mischkopf 18 gebildete Einheit für den Prozess des Mischens in einer Über-Kopf-Anordnung befindet.On the underside of the liner 11 is held jammed in the mixing container 1 with its two clamping extensions 16, 16.1 in the outlet channel 8 through the outlet flap 23. The outlet flap 23 is in the enlarged longitudinal sectional view of FIG. 2 (bottom right) recognizable. The outlet flap 23 is shown therein in its closed position. In this acts with its peripheral side against the inner wall of the clamping extensions 16, 16.1 of the outlet channel extension 14, which in turn are pressed with its outer side against the inner wall of the outlet channel 8. A fixing of the inliner 11 in the region of the outlet channel 8 in the manner described above is necessary so that it does not coincide when the unit formed from mixing container 1 and mixing head 18 for the process of mixing is in an overhead arrangement.

Nach Anschluss des Mischcontainers 1 an den Mischkopf 18 wird diese Anordnung gedreht, damit das in dem Mischcontainer 1 befindliche Mischgut in Kontakt mit den in dem Mischkopf 18 befindlichen Mischwerkzeugen gelangt. Dieses ist erforderlich, um den Mischprozess durchzuführen. Die Fixierung des Inliners 11 durch Einklemmen seines Auslaufkanalfortsatzes 14 in dem Auslaufkanal 8 des Mischcontainers 1 gewährleistet, dass der für den Prozess des Mischens sodann oben befindliche Teil des Inliners 1 nicht nach unten fällt. Der Inliner 11 ist durch seine Konzeption als Folie insofern nicht formstabil genug.After connection of the mixing container 1 to the mixing head 18, this arrangement is rotated so that the mix located in the mixing container 1 comes into contact with the mixer located in the mixing head 18 mixing tools. This is required to complete the mixing process. The fixation of the inliner 11 by clamping its outlet channel extension 14 in the outlet channel 8 of the mixing container 1 ensures that the part of the inliner 1 then located at the top for the process of mixing does not fall down. The inliner 11 is not dimensionally stable enough by its conception as a film.

Vor dem Einleiten des Mischprozesses wird in dem durch den Hohlraum 3 des Mischcontainers 1 und den Innenraum des Mischkopfes 18 gebildete Mischkammer mit einem gewissen Überdruck aufgebaut. Dieses dient dem Zweck, dass der Inliner 11 auch für den Prozess des Mischens in seiner Anlagestellung an der Innenwand des Mischcontainers 1 verbleibt, um den Mischprozess nicht zu behindern.Before initiating the mixing process, a mixing chamber formed by the cavity 3 of the mixing container 1 and the interior of the mixing head 18 is built up with a certain overpressure. This serves the purpose that the inliner 11 remains for the process of mixing in its contact position on the inner wall of the mixing container 1, so as not to hinder the mixing process.

Die Erfindung ist vorstehend unter Bezugnahme auf die Figuren anhand eines konkreten Ausführungsbeispiels beschrieben worden. Ohne den Umfang der geltenden Ansprüche zu verlassen, ergeben sich für einen Fachmann weitere Ausgestaltungen, die Erfindung verwirklichen zu können.The invention has been described above with reference to the figures with reference to a concrete embodiment. Without departing from the scope of the valid claims, it will be apparent to a person skilled in the art further refinements to be able to realize the invention.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Mischcontainermixed container
22
Wagendare
33
Hohlraumcavity
44
Einfüllöffnungfill opening
55
MischcontainerflanschMischcontainerflansch
66
Abschnittsection
77
Abschnittsection
88th
Auslaufkanaloutlet channel
99
Schwenkachseswivel axis
1010
Handhabehandle
1111
Inlinerinline
1212
Abschnittsection
1313
Abschnittsection
1414
AuslaufkanalfortsatzOutlet channel extension
1515
AchsausnehmungAchsausnehmung
16, 16.116, 16.1
KlemmfortsatzClamping extension
1717
Klemmflanschclamping flange
1818
Mischkopfmixing head
1919
industrielle Mischmaschineindustrial blender
2020
Elektromotorelectric motor
2121
Flanschflange
2222
Spanneinrichtungtensioning device
2323
Auslaufklappedischarge flap

Claims (7)

  1. Inliner for lining a mixing container (1), comprising on the upper side a filling opening (4) and a flange (5) projecting in a radial direction outwards, and on the underside an outlet channel (8), with an outlet flap (23) which is adjustable from an open position into a closed position and vice-versa, which, for the procedure of mixing of a pourable mixing material introduced therein, can be connected to a mixing head (18), carrying one or more mixing tools, of an industrial mixing machine (19), said inliner (11) carrying on the upper side a flange (17), projecting outwards in the radial direction and, when inserted into the mixing container (1), coming in contact with the flange (5) of the mixing container (1), and on the underside an outlet channel extension (14) projecting into the outlet channel (8) of the mixing container (1), which extends to such a length into the outlet channel (8) of the mixing container (1) that it extends at least as far as the outlet flap (23) when in its closed position, characterised in that the outlet channel extension (14) of the inliner (11) comprises diametrically opposed axial cut-out openings (15), through which two clamp extensions (16, 16.1) are provided, extending over the outlet flap (23) of the mixing container (1) when it is in its closed position.
  2. Inliner according to claim 1, characterised in that the inliner (11) is manufactured from a plastic which is inert in relation to the mixed material which is to be filled into it.
  3. Inliner according to claim 2, characterised in that the inliner (11) is manufactured from a polyethylene material, in particular an LDPE (Low Density Polyethylene).
  4. Inliner according to claim 2 or 3, characterised in that the inliner (11) is made from a plurality of individual parts (12, 13, 14, 17) welded to one another.
  5. Arrangement, comprising a mixing container (1), comprising on the upper side a filling opening (4) and a flange (5) projecting in a radial direction outwards, and on the underside an outlet channel (8), with an outlet flap (23) which is adjustable from an open position into a closed position and vice-versa, which for the procedure of mixing of a pourable mixing material introduced therein can be connected to a mixing head (18) carrying one or more mixing tools, of an industrial mixing machine (19), as well as comprising an inliner (11) according to any one of claims 1 to 4.
  6. Arrangement according to claim 5, wherein, in the closed position of the outlet flap (23), this flap takes effect with its circumferential outer side against the inner wall of the clamp extensions (16, 16.1) of the inliner (11), such that the clamp extensions (16, 16.1) are clamped between outlet flap (23) and the inner wall of the outlet channel (8).
  7. Method for operating an industrial mixing machine with a mixing container (1), comprising on the upper side a filling opening (4) and a flange (5) projecting in a radial direction outwards, and on the underside an outlet channel (8), with an outlet flap (23) which is adjustable from an open position into a closed position and vice-versa, and with an inliner (11) in accordance with any one of claims 1 to 4 inserted into the mixing container (1), wherein the mixing container (1), for the procedure of mixing a pourable mixing material introduced therein, is connected to a mixing head (18), carrying one or more mixing tools, of the industrial mixing machine (19), with the following steps:
    - providing a mixing container (1), with on the upper side a filling opening (4) and a flange (5) projecting in a radial direction outwards, and on the underside an outlet channel (8), with an outlet flap (23) which is adjustable from an open position into a closed position and vice-versa,
    - inserting an inliner (11) into the mixing container (1) for the lining of its inner wall and of its outlet channel (8), extending at least as far as the outlet flap (23) in its closed position, said inliner (11) connecting with its clamp flange (17) to the flange (5) of the mixing container (1),
    - closing the outlet flap (23) of the mixing container (1), and clamping the component(s), extending at least as far as the outlet flap (23), of the outlet flap extension (14) of the inliner (11) between the outlet flap (23) and the inner wall of the outlet channel (8),
    - filling of the mixing container (1) lined with the inliner (11) with mixing material which is to be mixed, through the upper inlet opening (4),
    - connecting the mixing container (1) to the mixing head (18) of the industrial mixing machine (19), during which process the flange (17) pointing outwards, of the inliner (11), is clamped between the mixing container flange (5) and a complementary flange (21) arranged mixing head (18),
    - building up an overpressure inside the mixing chamber which is formed by the mixing container (1) with its inliner (11) and the mixing head (18),
    - carrying out the mixing process, typically in an overhead arrangement of mixing container (1) and mixing head (18), wherein the mixing head (18) is arranged beneath the mixing container (1),
    - after the concluding of the mixing process: Releasing of the mixing container (1) from the mixing head (18) and emptying it by opening the outlet flap (23) and allowing the mixed mixing material to run out, and
    - then, if necessary, removal of the inliner (11), wherein this is carried out if it is intended that, following this, another mixing material is to be mixed in the mixing container (1).
EP14179640.9A 2013-08-09 2014-08-04 Inliner for lining a mixing container, assembly comprising a mixing container and inliner inserted therein and method for operating an industrial mixing machine equipped with a mixing container which is lined with such an inliner Active EP2937138B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202013103591U DE202013103591U1 (en) 2013-08-09 2013-08-09 Inliner for lining a mixed container and arrangement comprising a mixing container and an inliner inserted therein

Publications (2)

Publication Number Publication Date
EP2937138A1 EP2937138A1 (en) 2015-10-28
EP2937138B1 true EP2937138B1 (en) 2018-10-17

Family

ID=49232652

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14179640.9A Active EP2937138B1 (en) 2013-08-09 2014-08-04 Inliner for lining a mixing container, assembly comprising a mixing container and inliner inserted therein and method for operating an industrial mixing machine equipped with a mixing container which is lined with such an inliner

Country Status (6)

Country Link
US (1) US10071351B2 (en)
EP (1) EP2937138B1 (en)
DE (1) DE202013103591U1 (en)
ES (1) ES2702155T3 (en)
PT (1) PT2937138T (en)
TR (1) TR201818618T4 (en)

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IT201600105203A1 (en) * 2016-10-19 2018-04-19 Born To Mix S R L MIXING MACHINE, IN PARTICULAR FOR MIXING MATERIALS IN GRANULAR OR POWDERED FORM
EP3323503A1 (en) * 2016-11-15 2018-05-23 B + A A/S Interior container for a forced action mixer
ES2899452T3 (en) * 2018-02-20 2022-03-11 Dr Herfeld Gmbh & Co Kg mixing machine
US11224848B2 (en) 2018-02-20 2022-01-18 Dr. Herfeld Gmbh & Co. Kg Mixing machine
DE202019104870U1 (en) * 2019-09-04 2019-09-18 Dr. Herfeld Gmbh & Co. Kg mixer
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DK181241B1 (en) * 2021-06-14 2023-05-26 Automation Steel Aps Mixer
CN113908755A (en) * 2021-11-04 2022-01-11 江西金思康药业有限公司 Mixing arrangement is used in wound surface dressing production

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Also Published As

Publication number Publication date
US10071351B2 (en) 2018-09-11
ES2702155T3 (en) 2019-02-27
PT2937138T (en) 2018-12-19
DE202013103591U1 (en) 2013-08-27
EP2937138A1 (en) 2015-10-28
US20150078119A1 (en) 2015-03-19
TR201818618T4 (en) 2019-01-21

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