EP2158960A1 - Method for mixing a mixture in a mixture container and mixing device - Google Patents
Method for mixing a mixture in a mixture container and mixing device Download PDFInfo
- Publication number
- EP2158960A1 EP2158960A1 EP09168452A EP09168452A EP2158960A1 EP 2158960 A1 EP2158960 A1 EP 2158960A1 EP 09168452 A EP09168452 A EP 09168452A EP 09168452 A EP09168452 A EP 09168452A EP 2158960 A1 EP2158960 A1 EP 2158960A1
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- EP
- European Patent Office
- Prior art keywords
- mixing
- container
- mixing container
- mischgutstrom
- movement
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/60—Mixing solids with solids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/10—Mixers with rotating receptacles with receptacles rotated about two different axes, e.g. receptacles having planetary motion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/30—Mixing the contents of individual packages or containers, e.g. by rotating tins or bottles
- B01F29/32—Containers specially adapted for coupling to rotating frames or the like; Coupling means therefor
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- 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
- B01F27/054—Deformable stirrers, e.g. deformed by a centrifugal force applied during operation
- B01F27/0541—Deformable stirrers, e.g. deformed by a centrifugal force applied during operation with mechanical means to alter the position of the stirring elements
Definitions
- the invention relates to a method for mixing a solid mixture in a mixing container, in which mixing method, the mixing material in the mixing container is brought into a mixing movement to form a Mischgutstromes. Furthermore, the invention relates to a mixing device with a device for generating a Mischgutstromes within a connectable to the device, a mixed solids containing mixing container, which Mischgutstrom-generating means connecting means for connecting a mixing container, wherein for the process of the mixing process of Mischgutstromgenerator and mixing container formed Unit is held about an axis arranged at an angle to the longitudinal axis of the shaft pivotally relative to a base frame of the mixing device.
- Such mixing devices are industrial mixers which are used for mixing bulk material, in particular pulverulent bulk material, for producing plastic granulate mixtures.
- a mixer is for example off DE 197 08 075 C1 known.
- This previously known mixing device has a Mischgutstrom-generating device with which the mixing material located within the mixing container is set to form a Mischgutstromes in motion.
- the mixing container of this mixing device consists of two parts, one of the mixing container part containing the mixing material to be mixed and the other mixing container part of the Mischgutstrom-generating device is assigned. Both mixing container parts are designed to be cylindrical, at least in their adjoining region.
- the Misch currentlyerteil assigned to the Mischgutstromgenerator has a projecting outwardly flange, to the top opening of the other Misch matterserteils is connected by pneumatic screw caps.
- the other mixing container part carries rollers on the underside and, if not connected to the Mischbenzolgengenerator associated Misch soerteil be moved over this.
- the associated with the Mischgutstrom-generating device Mixing container part is rotatably driven to generate a Mischgutstromes by acting on the rear outside of this Misch electerteils friction wheel. A thorough mixing of the mixed container composed of the two mixing container parts is thus effected by the rotary drive of the mixed material on the mixing container wall.
- motor-driven dispersing tools can be arranged within the mixing container part associated with the mixed material flow generating device.
- the Mischgutstrom-generating device of this prior art mixing device is tiltable about a horizontal pivot axis relative to a base frame to bring the mixing container for the purpose of mixing in an inclined over inclined head.
- a larger inner surface of the mixing container composed of the two container parts is brought into contact with the material to be mixed therein for producing a mixed material flow.
- mixing devices like these from the DE 197 08 075 C1 have become known, even those are known in which the Mischgutstrom is not generated by rotation of the mixing container about its longitudinal axis, but by within the otherwise stationary mixing container by rotating within the mixing container mixing tools. In the operation of such a mixing device, a thrombus-like mixture stream typically results within the mixing container.
- the energy input into the mix flow through a typically as Mixed propeller trained mixing tool limits. This means that a mixing tool can not be driven at arbitrarily high speed to improve the mixing process.
- mixing devices have become known in which the mixing container is cooled from the outside. However, such measures are expensive.
- the invention has the object, a method mentioned above and a mixing device mentioned above in such a way that the executed mixing method is improved with respect to at least some of the above-identified disadvantages of the prior art.
- the method-related object is achieved by an aforementioned generic method in which to improve the mixing process of the mixing container during the mixing process or Space is pivoted, the axes extend to perform this mixing container movement at an angle to the longitudinal axis of the mixing container.
- the mixing device-related object is achieved by a mixing device with the features of claim 7.
- the mixed material flow is generated by a mixed flow generating means.
- This can be done for example by a rotating mixing container and / or by one or more engaging in the mixing container mixing tools.
- this is not the only movement that affects the generated mix stream.
- the mixing container is also moved in one or more than one axis and thus changed with respect to its spatial position.
- the unit formed from Mischgutstrom-generating device and mixing container is pivotally mounted relative to a base frame of the mixing device. If this unit can only be pivoted about a pivot axis, this can be brought into a pendulum motion superimposed on the mixture flow generating material.
- the mixing container is pivoted about two, preferably at right angles to each other and also preferably perpendicular to the longitudinal axis of the mixing container extending axes of movement.
- the mixing container is gimballed at least in the preferred embodiment, so that according to a predetermined movement protocol during the mixing process, the mixing container can be moved to change its spatial position. This can be realized by different pendulum movements and / or by moving the mixing container on a predetermined trajectory.
- the movement protocol is expediently programmed in such a way that each interior wall section of the mixing container is brought into a position at time intervals, so that due to gravity accumulated on this inner wall section accumulated material falls back into the mixed material flow generated by the mixing movement.
- containers can be used as mixing containers, which could not be used in conventional mixing processes due to Mischtodzonen or because of unfavorable diameter-height ratios.
- the mix to be mixed can thus be mixed in its transport container. These typically have a square cross-sectional geometry. These may also be other containers, such as barrels with beads.
- a mixing device 1 has a base frame 2, on which by means of a pivoting frame 3, a mixed material flow generating device, indicated generally by the reference numeral 4, is pivotally mounted.
- the Mischgutstrom-generating device 4 is in turn pivotally mounted within the swing frame 3.
- the pivot axis of the Mischgutstrom-generating device 4 within the swing frame 3 is marked with the reference numeral 5.
- the pivot axis of the swing frame 3 relative to the base frame 2 is marked with the reference numeral 6.
- Both pivot axes 5, 6 are arranged at right angles to each other in a horizontally extending plane. Consequently, the Mischgutstrom-generating device 4 is gimballed relative to the base frame 2.
- the base frame 2 has two stands 7, 8, which are each designed as U-shaped profiles.
- a gear motor 9 is arranged, through which the swing frame 3 can be pivoted about its pivot axis 6.
- Another geared motor 10 serves to pivot the Mischgutstrom-generating device 4 about the pivot axis 5 within the swing frame 3.
- the motors 9, 10 the Mischgutstrom-generating device 4 can be pivoted due to their gimbal storage within the respective range of motion in any spatial position.
- the mixed material flow generating device 4 has an electric motor 11, on whose drive shaft 12 a propeller-like designed mixing tool 13 is arranged.
- the wings 14, 14.1 of the mixing tool 13 are opposite the Mischwerkmaschinenabe 15 hinged.
- the wings 14, 14. 1 are located in their position folded down relative to the mixing tool hub 15, in which the longitudinal axes of the wings 14, 14. 1 run parallel or approximately parallel to the longitudinal axis of the drive shaft 12.
- the radial extent of the mixing tool 13 is in the in FIG. 1 shown position of its wings 14, 14.1 therefore much lower than in the use position in which the wings 14, 14.1 are swung.
- the hinged design of the wings 14, 14.1 of the mixing tool 13 allows insertion of the mixing tool 13 in a mixing container with a relatively small diameter upper opening, which may be designed, for example, as a manhole.
- the Mischgutstrom-generating device 4 is assigned in the illustrated embodiment, two connecting arms 16, 16.1 designed as a lifting device connecting device.
- the connecting arms 16, 16. 1 serve to connect a mixing container 17 to the mixing device 1 FIG. 1 illustrated embodiment, a conventional bulk container provided with angular peripheral geometry.
- the mixing container 17 has on the upper side an opening 18 designed as a filling and cleaning opening. This container serves to fill the mixing container 17 with the bulk material to be mixed, which may be plastic granules, for example.
- the mixing container 17 further includes a non-illustrated lower side, provided with a closure exhaust port through which the mixing container 17 can be emptied.
- the mixing container 17 has a frame-like designed mixing container frame 19.
- the mixing container frame 19 may be designed to be stackable.
- Part of the mixing container frame 19 are two mutually spaced, forming the lower end in the illustrated embodiment struts 20, 20.1. These are arranged on all four sides of the mixing container frame 19.
- the struts 20, 20.1 are arranged at a distance from each other and define by their distance in each case a receptacle 21, 21.1.
- the receptacles 21, 21.1 serve to receive one, each connecting arm 16 or 16.1 associated coupling member 22, 22.1.
- Of the Mixing container 17 has been inserted with its mixing container frame 19 and its struts 20, 20.1 between the two connecting arms 16, 16.1 with their coupling members 22, 22.1 arranged therein.
- the coupling members 22, 22.1 are each connected to a tension rod 23, 23.1, with which they can be moved translationally with the tension rods 23, 23.1.
- the tension rods 23, 23.1 are each driven by a geared geared electric motor 24, 24.1.
- the tension rods 23, 23.1 are held and guided in the U-shaped connecting arms 16, 16.1, which are designed to be open to each other.
- the connecting device designed as a lifting device mixing containers or mixing container racks, containers or other containers in which the material to be mixed is located can be connected to the mixed material flow generating device 4 of different height.
- the coupling members 22, 22.1 thus engage behind the mixing container 17 in a form-fitting manner in its direction of movement on a shoulder formed by the respective upper strut 20. If the tension rods 23, 23.1 are moved toward the mixing device 1 or the mixed material flow generating device 4 for connecting the mixing container 17, the mixing container 17 is raised in the direction of the mixed material flow generating device 4. In the course of this movement, the mixing tool 13 is inserted through the upper-side opening 18 into the interior of the mixing container 17. For closing the opening 18 of the mixing container 17, the mixed material flow generating device 4 has a plate-like closure element 25 which rests on the upper, flange-shaped closure 26 of the opening 18 when the mixing container 17 is intended connected to the Mischgutstrom-generating device 4.
- the closure element 25 is then, under a certain bias standing at the end 26 of the opening 18 at.
- a sealing ring 27 is inserted into the closure element 25 (see. FIG. 2 ).
- the mixing tool 13 is provided protruding from the side facing the mixing container 17 side closure plate 25.
- the mixing process is after connecting the mixing container 17 to the Mischgutstrom-generating device 4 of Swinging frame 3 pivots, so that the unit, formed from Mischgutstrom-generating device 4 and mixing container 17, is located in an overhead assembly.
- the mixing process is started in the mixing device 1, when the swing frame 3 has been pivoted by 180 °.
- This overhead arrangement is schematized in a cutout in FIG FIG. 2 shown. Due to the overhead arrangement, the mixture to be mixed contained in the mixing container 17 has fallen to the previously upper and now lower end of the mixing container 17, so that the mixing tool 13 is surrounded by mix. Due to the swung by 180 ° arrangement, the wings 14, 14.1 unfolded by gravity and are in this, in FIG. 2 shown position, held by a arranged on the Mischtechnikmaschinenabe 13 stop. The mixing container 17 is under the bias provided by the connecting device in the in FIG. 2 shown position with the end 26 of its mouth 18 against the plate-like closure member 25 and the inserted therein seal 27 acting.
- the electric motor 11 is energized, so that the mixing tool designed as a propeller 13 is set in rotation. It is provided to drive the mixing tool 13 at such a speed that the mixing material contained within the mixing container 17 is moved to form a Mischgutstromes.
- a Mischthrombus forms.
- FIG. 3 shows the mixing container 17 in its overhead arrangement and thus in its mixing position connected to the Mischgutstrom-generating device 4, but in contrast to the representation of FIG. 2 with an alternative closure element 25 '.
- the closure element 25 ' is designed to engage in the opening 18 of the mixing container 17 in such a way that the closure of the closure element 25' engaging in the container 17 terminates flush with the interior of the container.
- the closure element 25 ' carries at its pointing into the container interior end acting in the radial direction of a sealing ring 27'.
- the sealing ring 27' is a seal which can be activated with respect to its sealing action, for example a pneumatically or hydraulically activatable sealing ring, as provided in this figure.
- the activation device for activating (filling or emptying) of the sealing ring 27 are not shown in the figure. At the in FIG. 3 shown conception of death spaces is avoided.
- closure element 25 is to be noted that this is only in relation to its the lower end of the mixing container 17 in his FIG. 3 shown position to clean side is because all other portions of this closure element 25 'are not in contact with the mixture in the mixing container 17 are.
- the mixing container 17 is a bulk material container which has a square cross-sectional geometry, the inner contour of this mixing container 17 is correspondingly square. This means that the mixing container 17 in the region of its corners has areas in which mix can accumulate. This circumstance is used in the mixing process to improve it.
- the cardanic suspension of the mixed material flow generating device 4 and the mixing container 17 connected thereto for carrying out the mixing process allows the mixing container 17 to be pivoted about the pivot axes 5, 6 during the mixing process. In this way, the mixing container 17, such as in FIG. 3 shown to be placed in different spatial positions. The generation of the thrombus-like mixed flow in the interior of the mixing container 17 is maintained by the rotation of the mixing tool 13.
- the pivoting of the mixing container 17 has the result that, depending on its spatial position in the corners so-called Mischtodzonen arise in which accumulates and initially no longer participates in the mixing process, at least not until the mixing container 17 brought into a spatial position has been that the accumulated in such a range mix falls by gravity.
- This dropping of mixed material accumulated in such a dead zone results in the generation of transverse turbulence within the mix stream, which in turn supports the process of mixing.
- effective thorough mixing can take place even at lower rotational speeds of the mixing tool 13, which in turn has a favorable effect on undesirable heating and gentle mixing of the mixed material during the mixing process.
- FIG. 4 shows the mixing device 1 with the mixing container 17 connected thereto in a about the axes 5, 6 pivoted and inclined relative to the vertical space position.
- the mixing container 17 is, as in FIG. 3 characterized schematically by the motion paths 28 exemplified in all directions pivotally.
- a movement of the mixing container 17 with the mixed material flow generating device 4 connected thereto is effected as a function of the internal geometry of the mixing container 17 and / or the mixed material contained therein.
- An adjustability of the spatial position of the unit formed from Mischgutstrom-generating device 4 and mixing container 17 is carried out according to a predetermined movement protocol.
- the movement protocol may be designed so that the mixing container 17 has a constant inclination and is moved around the intersection of the pivot axes 5, 6.
- the mixing device 1 moves the mixing container 17 along a plane in a three-dimensionally provided pendulum movement.
- the cardanic suspension allows the motion log to be designed to meet the requirements of each, and to associate pendulum motion in any direction with straight and / or circular path motions, if desired.
- the mixing container 17 is pivoted back to its original position and separated from the Mischgutstrom-generating device 4 by loosening the connection means.
- the above-described suspension of the Mischgutstrom-generating device makes it clear that this basically every container in which a bulk material to be mixed is contained, can be connected to the Mischgutstrom-generating device 4. In particular, it does not necessarily require refilling of the mixture to be mixed in a specially designed mixing container. These may also be bags or the like. These are hung for the process of mixing on a suitably designed mixing vessel rack.
- centering means can be provided, with which the top-side opening of a mixing container can be connected to the Mischgutstrom-generating device.
- Such centering means may, for example, also be those which have a conical taper and reach into the opening of the mixing container.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Mischen eines in einem Mischbehälter befindlichen Festkörpermischgutes, bei welchem Mischverfahren das in dem Mischbehälter befindliche Mischgut unter Ausbildung eines Mischgutstromes in eine Mischbewegung gebracht wird. Ferner betrifft die Erfindung eine Mischvorrichtung mit einer Einrichtung zum Erzeugen eines Mischgutstromes innerhalb eines an die Einrichtung anschließbaren, ein Festkörpermischgut enthaltenden Mischbehälters, welche Mischgutstrom-Erzeugungseinrichtung Anschlussmittel zum Anschließen eines Mischbehälters umfasst, wobei die für den Vorgang des Mischprozesses aus Mischgutstrom-Erzeugungseinrichtung und Mischbehälter gebildete Einheit um eine winklig zur Längsachse der Welle angeordnete Achse schwenkbar gegenüber einem Grundgestell der Mischvorrichtung gehalten ist.The invention relates to a method for mixing a solid mixture in a mixing container, in which mixing method, the mixing material in the mixing container is brought into a mixing movement to form a Mischgutstromes. Furthermore, the invention relates to a mixing device with a device for generating a Mischgutstromes within a connectable to the device, a mixed solids containing mixing container, which Mischgutstrom-generating means connecting means for connecting a mixing container, wherein for the process of the mixing process of Mischgutstromgenerator and mixing container formed Unit is held about an axis arranged at an angle to the longitudinal axis of the shaft pivotally relative to a base frame of the mixing device.
Bei derartigen Mischvorrichtungen handelt es sich um industrielle Mischer, die zum Mischen von Schüttgut, insbesondere pulverförmigem Schüttgut, zum Erstellen von Kunststoffgranulatgemischen eingesetzt werden. Ein solcher Mischer ist beispielsweise aus
Bei dem aus
Neben Mischvorrichtungen, wie diese aus der
Ausgehend von diesem diskutierten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein eingangs genanntes Verfahren sowie eine eingangs genannte Mischvorrichtung dergestalt weiterzubilden, dass das ausgeführte Mischverfahren bezüglich auf zumindest einige vorstehend aufgezeigten Nachteile des Standes der Technik verbessert ist.Based on this discussed prior art, the invention has the object, a method mentioned above and a mixing device mentioned above in such a way that the executed mixing method is improved with respect to at least some of the above-identified disadvantages of the prior art.
Die verfahrensbezogene Aufgabe wird erfindungsgemäß durch ein eingangs genanntes gattungsgemäßes Verfahren gelöst, bei dem zum Verbessern des Mischverfahrens der Mischbehälter während des Mischvorganges ein- oder mehraxial geschwenkt wird, wobei die Achsen zum Durchführen dieser Mischbehälterbewegung winklig zur Längsachse des Mischbehälters verlaufen.The method-related object is achieved by an aforementioned generic method in which to improve the mixing process of the mixing container during the mixing process or mehraxial is pivoted, the axes extend to perform this mixing container movement at an angle to the longitudinal axis of the mixing container.
Die mischvorrichtungsbezogene Aufgabe wird erfindungsgemäß durch eine Mischvorrichtung mit den Merkmalen des Anspruchs 7 gelöst.The mixing device-related object is achieved by a mixing device with the features of
Zum Verbessern des herkömmlichen Mischverfahrens wird bei dem vorstehenden Verfahren der Mischgutstrom durch eine Mischgutstrom-Erzeugungseinrichtung generiert. Dieses kann beispielsweise durch einen rotierenden Mischbehälter und/oder durch ein oder mehrere in den Mischbehälter eingreifende Mischwerkzeuge erfolgen. Beim Vorgang des Mischens ist dieses jedoch nicht die einzige Bewegung, die Einfluss auf den generierten Mischgutstrom nimmt. Während des Mischprozesses wird der Mischbehälter zudem ein- oder mehraxial bewegt und damit bezüglich seiner Raumlage geändert. Zu diesem Zweck ist die aus Mischgutstrom-Erzeugungseinrichtung und Mischbehälter gebildete Einheit gegenüber einem Grundgestell der Mischvorrichtung schwenkbar gelagert. Ist diese Einheit nur um eine Schwenkachse schwenkbar, kann diese in eine den Mischgutstrom generierende Bewegung überlagernde Pendelbewegung gebracht werden. Dieses bedeutet für den Mischgutstrom, dass in Abhängigkeit von der Pendellage und damit der jeweiligen Raumlage des Mischbehälters, der Mischgutstrom der Schwerkraft in unterschiedlicher Weise ausgesetzt ist. Dieses hat zur Folge, dass durch ein solches Pendeln der Durchmischungsprozess intensiviert wird. Im Ergebnis kann mit diesem Verfahren ein gleichartiges Mischergebnis wie mit vorbekannten Mischverfahren allerdings zum schonenden Mischen mit einer geringeren Drehzahl des Mischbehälters oder des in einem solchen Mischbehälter befindlichen Mischwerkzeuges erreicht werden, was zu einer Erniedrigung der bei einem Mischen entstehenden Temperatur innerhalb des Mischgutes führt.For improving the conventional mixing method, in the above method, the mixed material flow is generated by a mixed flow generating means. This can be done for example by a rotating mixing container and / or by one or more engaging in the mixing container mixing tools. However, in the process of mixing, this is not the only movement that affects the generated mix stream. During the mixing process, the mixing container is also moved in one or more than one axis and thus changed with respect to its spatial position. For this purpose, the unit formed from Mischgutstrom-generating device and mixing container is pivotally mounted relative to a base frame of the mixing device. If this unit can only be pivoted about a pivot axis, this can be brought into a pendulum motion superimposed on the mixture flow generating material. This means for the mixed material flow that depending from the pendulum layer and thus the respective spatial position of the mixing vessel, the mixed material flow of gravity is exposed in different ways. This has the consequence that such a commuting intensifies the mixing process. As a result, with this method, a similar mixing result as with previously known mixing method, however, can be achieved for gentle mixing with a lower speed of the mixing container or the mixing tool located in such a mixing container, resulting in a lowering of the resulting temperature during mixing within the mix.
Bevorzugt ist allerdings eine Ausgestaltung, bei der während des Mischprozesses der Mischbehälter um zwei, vorzugsweise rechtwinklig zueinander und ebenfalls vorzugsweise rechtwinklig zur Längsachse des Mischbehälters verlaufende Bewegungsachsen geschwenkt wird. Bei einer solchen Ausgestaltung ist der Mischbehälter zumindest in der bevorzugten Ausgestaltung kardanisch aufgehängt, sodass entsprechend einem vorgegebenen Bewegungsprotokoll während des Mischvorganges der Mischbehälter zum Ändern seiner Raumlage bewegt werden kann. Dieses kann durch unterschiedliche Pendelbewegungen und/oder durch Bewegen des Mischbehälters auf einer vorgegebenen Bewegungsbahn realisiert werden. Bei einer solchen Ausgestaltung wird das Bewegungsprotokoll zweckmäßigerweise dergestalt programmiert sein, dass jeder Innenraumwandabschnitt des Mischbehälters in zeitlichen Abständen in eine Position gebracht wird, damit schwerkraftbedingt an diesem Innenwandabschnitt akkumuliertes Mischgut in den durch die Mischbewegung generierten Mischgutstrom zurückfällt. Mit diesem Verfahren können Behälter als Mischbehälter eingesetzt werden, die bei herkömmlichen Mischverfahren aufgrund von Mischtodzonen bzw. wegen ungünstiger Durchmesser-Höhen-Verhältnisse nicht eingesetzt werden konnten. Das zu mischende Mischgut kann somit in seinem Transportbehälter gemischt werden. Diese weisen typischerweise eine quadratische Querschnittsgeometrie auf. Auch kann es sich hierbei um andere Behälter, wie etwa Fässer mit Sicken handeln.However, an embodiment is preferred in which during the mixing process, the mixing container is pivoted about two, preferably at right angles to each other and also preferably perpendicular to the longitudinal axis of the mixing container extending axes of movement. In such an embodiment, the mixing container is gimballed at least in the preferred embodiment, so that according to a predetermined movement protocol during the mixing process, the mixing container can be moved to change its spatial position. This can be realized by different pendulum movements and / or by moving the mixing container on a predetermined trajectory. In such an embodiment, the movement protocol is expediently programmed in such a way that each interior wall section of the mixing container is brought into a position at time intervals, so that due to gravity accumulated on this inner wall section accumulated material falls back into the mixed material flow generated by the mixing movement. With this method, containers can be used as mixing containers, which could not be used in conventional mixing processes due to Mischtodzonen or because of unfavorable diameter-height ratios. The mix to be mixed can thus be mixed in its transport container. These typically have a square cross-sectional geometry. These may also be other containers, such as barrels with beads.
Nachfolgend ist die Erfindung anhand eines Ausführungsbeispiels unter Bezugnahme auf die beigefügten Figuren beschrieben. Es zeigen:
- Fig. 1:
- Eine Mischvorrichtung in einer perspektivischen Ansicht mit ei- nem als Mischbehälter vorgesehenen, in Position gebrachten Schüttgutbehälter,
- Fig. 2:
- Eine schematisierte Schnittdarstellung durch den oberen Ab- schlussbereich des Schüttgutbehälters nach Anschließen des- selben an die Mischvorrichtung der
und nach Ver- schwenken desselben in seine Mischstellung,Figur 1 - Fig.°3:
- Eine alternative Darstellung entsprechend derjenigen der
mit einem anderen Verschlusselement undFigur 2 - Fig. 4:
- Die Mischvorrichtung der
mit dem daran angeschlosse- nen Schüttgutbehälter in einer perspektivischen Ansicht wäh- rend des Mischvorganges.Figur 1
- Fig. 1:
- A mixing device in a perspective view with a bulk container provided in the form of a mixing container and placed in position,
- Fig. 2:
- A schematic sectional view through the upper end region of the bulk goods container after connecting the same to the mixing device of
FIG. 1 and after pivoting it into its mixing position, - Fig °. 3:
- An alternative representation corresponding to that of
FIG. 2 with another closure element and - 4:
- The mixing device of
FIG. 1 with the bulk goods container connected thereto in a perspective view during the mixing process.
Eine Mischvorrichtung 1 verfügt über ein Grundgestell 2, an dem mittels eines Schwenkrahmens 3 eine insgesamt mit dem Bezugszeichen 4 gekennzeichnete Mischgutstrom-Erzeugungseinrichtung schwenkbar angelegt ist. Die Mischgutstrom-Erzeugungseinrichtung 4 ist ihrerseits innerhalb des Schwenkrahmens 3 schwenkbar gelagert. Die Schwenkachse der Mischgutstrom-Erzeugungseinrichtung 4 innerhalb des Schwenkrahmens 3 ist mit dem Bezugszeichen 5 gekennzeichnet. Die Schwenkachse des Schwenkrahmens 3 gegenüber dem Grundgestell 2 ist mit dem Bezugszeichen 6 gekennzeichnet. Beide Schwenkachsen 5, 6 sind rechtwinklig zueinander in einer horizontal verlaufend Ebene angeordnet. Mithin ist die Mischgutstrom-Erzeugungseinrichtung 4 kardanisch gegenüber dem Grundgestell 2 gelagert. Das Grundgestell 2 verfügt über zwei Ständer 7, 8, die jeweils als U-förmige Profile ausgeführt sind. In dem Ständer 7 ist ein Getriebemotor 9 angeordnet, durch den der Schwenkrahmen 3 um seine Schwenkachse 6 verschwenkt werden kann. Ein weiterer Getriebemotor 10 dient zum Verschwenken der Mischgutstrom-Erzeugungseinrichtung 4 um die Schwenkachse 5 innerhalb des Schwenkrahmens 3. Durch die Motoren 9, 10 kann die Mischgutstrom-Erzeugungseinrichtung 4 aufgrund ihrer kardanischen Lagerung innerhalb des jeweiligen Bewegungsspielraumes in jede beliebige Raumlage verschwenkt werden.A
Die Mischgutstrom-Erzeugungseinrichtung 4 verfügt über einen Elektromotor 11, auf dessen Antriebswelle 12 ein propellerartig konzipiertes Mischwerkzeug 13 angeordnet ist. Die Flügel 14, 14.1 des Mischwerkzeuges 13 sind gegenüber der Mischwerkzeugnabe 15 klappbar. In
Der Mischgutstrom-Erzeugungseinrichtung 4 ist eine bei dem dargestellten Ausführungsbeispiel zwei Anschlussarme 16, 16.1 aufweisende als Hubeinrichtung konzipierte Anschlusseinrichtung zugeordnet. Die Anschlussarme 16, 16.1 dienen zum Anschließen eines Mischbehälters 17 an die Mischvorrichtung 1. Als Mischbehälter 17 ist bei dem in
Die Kupplungsglieder 22, 22.1 hintergreifen somit den Mischbehälter 17 formschlüssig in ihrer Bewegungsrichtung an einem durch den jeweils oberen Streb 20 gebildeten Absatz. Werden die Spannstangen 23, 23.1 zum Anschließen des Mischbehälters 17 an die Mischvorrichtung 1 bzw. die Mischgutstrom-Erzeugungseinrichtung 4 heran bewegt, wird der Mischbehälter 17 in Richtung zur Mischgutstrom-Erzeugungseinrichtung 4 angehoben. Im Zuge dieser Bewegung wird das Mischwerkzeug 13 durch die oberseitige Öffnung 18 in das Innere des Mischbehälters 17 eingeführt. Zum Verschließen der Öffnung 18 des Mischbehälters 17 verfügt die Mischgutstrom-Erzeugungseinrichtung 4 über ein plattenartiges Verschlusselement 25, welches auf dem oberen, flanschartig ausgebildeten Abschluss 26 der Öffnung 18 anliegt, wenn der Mischbehälter 17 bestimmungsgemäß an die Mischgutstrom-Erzeugungseinrichtung 4 angeschlossen ist. Das Verschlusselement 25 liegt sodann, unter einer bestimmten Vorspannung stehend an dem Abschluss 26 der Öffnung 18 an. Bei dem dargestellten Ausführungsbeispiel ist in das Verschlusselement 25 ein Dichtring 27 eingelegt (vgl.
Zum Durchführen des eigentlichen Mischprozesses wird nach Anschließen des Mischbehälters 17 an die Mischgutstrom-Erzeugungseinrichtung 4 der Schwenkrahmen 3 verschwenkt, sodass die Einheit, gebildet aus Mischgutstrom-Erzeugungseinrichtung 4 und Mischbehälter 17, sich in einer Überkopfanordnung befindet. Typischerweise wird der Mischvorgang bei der Mischvorrichtung 1 begonnen, wenn der Schwenkrahmen 3 um 180° geschwenkt worden ist.To carry out the actual mixing process is after connecting the mixing
Diese Überkopfanordnung ist schematisiert in einem Ausschnitt in
Zum Starten des Mischvorganges wird der Elektromotor 11 bestromt, sodass das als Propeller 13 ausgebildete Mischwerkzeug in Rotation versetzt wird. Dabei ist vorgesehen, das Mischwerkzeug 13 mit einer solchen Geschwindigkeit anzutreiben, dass das innerhalb des Mischbehälters 17 befindliche Mischgut zur Ausbildung eines Mischgutstromes bewegt wird. Bei Einsatz eines Mischwerkzeuges, wie in den Figuren gezeigt, bildet sich ein Mischthrombus aus.To start the mixing process, the
Im Hinblick auf das Verschlusselement 25' ist darauf hinzuweisen, dass dieses lediglich in Bezug auf seine den unteren Abschluss des Mischbehälters 17 in seiner
Da es sich bei dem Mischbehälter 17 um einen Schüttgutcontainer handelt, der eine quadratische Querschnittsgeometrie aufweist, ist die Innenkontur dieses Mischbehälters 17 entsprechend quadratisch. Dieses bedeutet, dass der Mischbehälter 17 im Bereich seiner Ecken über Bereiche verfügt, in denen sich Mischgut akkumulieren kann. Dieser Umstand wird bei dem Mischprozess genutzt, um diesen zu verbessern. Die kardanische Aufhängung der Mischgutstrom-Erzeugungseinrichtung 4 und des daran für die Durchführung des Mischprozesses angeschlossenen Mischbehälters 17, erlaubt es, dass der Mischbehälter 17 während des Mischprozesses um die Schwenkachsen 5, 6 verschwenkt werden kann. Auf diese Weise kann der Mischbehälter 17, wie beispielsweise in
Nach Beenden des Mischvorganges wird der Mischbehälter 17 in seine Ausgangsposition zurückgeschwenkt und von der Mischgutstrom-Erzeugungseinrichtung 4 durch Lösen der Anschlussmittel getrennt.After completion of the mixing process, the mixing
Soll anschließend ein Mischgut mit einer anderen Zusammensetzung mit der Mischvorrichtung 1 gemischt werden, braucht lediglich das Verschlusselement 25 und das Mischwerkzeug 13 gereinigt zu werden. Das andere Mischgut wird in seinem Transportcontainer herangeführt, in diesem wie vorstehend beschrieben gemischt und anschließend der weiteren Verwendung zugeführt.If a mixture having a different composition is subsequently mixed with the
Die vorbeschriebene Aufhängung der Mischgutstrom-Erzeugungseinrichtung macht deutlich, dass an diese grundsätzlich jedes Behältnis, in dem ein zu mischendes Schüttgut enthalten ist, an die Mischgutstrom-Erzeugungseinrichtung 4 angeschlossen werden kann. Insbesondere bedarf es nicht notwendigerweise eines Umfüllens des zu mischenden Mischgutes in einen eigens konzipierten Mischbehälter. Hierbei kann es sich auch um Säcke oder dergleichen handeln. Diese werden für den Vorgang des Mischens an einem entsprechend konzipierten Mischbehältergestell aufgehängt.The above-described suspension of the Mischgutstrom-generating device makes it clear that this basically every container in which a bulk material to be mixed is contained, can be connected to the Mischgutstrom-generating
Es versteht sich, dass das beschriebene Mischwerkzeug auch unabhängig von der in diesen Ausführungen konkret beschriebenen Anwendung eingesetzt werden kann.It is understood that the mixing tool described can also be used independently of the application specifically described in these embodiments.
Ohne den Umfang der Ansprüche zu verlassen, ergeben sich für einen Fachmann zahlreiche weitere Ausgestaltungsmöglichkeiten für das beanspruchte Verfahren und die beanspruchte Mischvorrichtung. Beispielsweise können Zentriermittel vorgesehen sein, mit denen die oberseitige Öffnung eines Mischbehälters an die Mischgutstrom-Erzeugungseinrichtung angeschlossen werden können. Bei solchen Zentriermitteln kann es sich beispielsweise auch um solche handeln, die eine konische Verjüngung aufweisen und in die Öffnung des Mischbehälters hineingreifen.Without departing from the scope of the claims, numerous other design possibilities for the claimed method and the claimed mixing device will be apparent to a person skilled in the art. For example, centering means can be provided, with which the top-side opening of a mixing container can be connected to the Mischgutstrom-generating device. Such centering means may, for example, also be those which have a conical taper and reach into the opening of the mixing container.
- 11
- Mischvorrichtungmixing device
- 22
- Grundgestellbase frame
- 33
- Schwenkarmswivel arm
- 44
- Mischgutstrom-ErzeugungseinrichtungMischgutstrom generator
- 55
- Schwenkachseswivel axis
- 66
- Schwenkachseswivel axis
- 77
- Ständerstand
- 88th
- Ständerstand
- 99
- Getriebemotorgearmotor
- 1010
- Getriebemotorgearmotor
- 1111
- Elektromotorelectric motor
- 1212
- Antriebswelledrive shaft
- 1313
- Mischpropellermixing propeller
- 14, 14.114, 14.1
- Flügelwing
- 1515
- MischpropellernabeMischpropellernabe
- 16, 16.116, 16.1
- Anschlussarmconnector arm
- 1717
- Mischbehältermixing tank
- 1818
- Öffnungopening
- 1919
- MischbehältergestellMixing container frame
- 20, 20.120, 20.1
- Strebestrut
- 21, 21.121, 21.1
- Aufnahmeadmission
- 22, 22.122, 22.1
- Kupplungsgliedcoupling member
- 23, 23.123, 23.1
- Spannstangetension rod
- 24, 24.124, 24.1
- Elektromotorelectric motor
- 25, 25'25, 25 '
- Verschlusselementclosure element
- 2626
- Abschlussgraduation
- 27, 27'27, 27 '
- Dichtringseal
- 2828
- Bewegungsbahntrajectory
Claims (15)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008045189A DE102008045189A1 (en) | 2008-08-30 | 2008-08-30 | Method for mixing a mixed material in a mixing container and mixing device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2158960A1 true EP2158960A1 (en) | 2010-03-03 |
EP2158960B1 EP2158960B1 (en) | 2012-02-15 |
Family
ID=41401884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09168452A Not-in-force EP2158960B1 (en) | 2008-08-30 | 2009-08-24 | Method for mixing a mixture in a mixture container and mixing device |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2158960B1 (en) |
CN (1) | CN101658770A (en) |
AT (1) | ATE545457T1 (en) |
DE (1) | DE102008045189A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114699964A (en) * | 2022-04-06 | 2022-07-05 | 中国核电工程有限公司 | Mixing device and glove box system |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018106189A1 (en) | 2018-03-16 | 2019-09-19 | Maschinenfabrik Gustav Eirich Gmbh & Co. Kg | hygiene mixer |
CN112316079B (en) * | 2020-11-04 | 2021-12-14 | 福建永春制药有限公司 | Production equipment and production method of spleen-nourishing traditional Chinese medicine |
DE102021210248A1 (en) | 2021-09-16 | 2023-03-16 | Kniele Gmbh | Closure for mixer |
DE202022105879U1 (en) | 2022-10-19 | 2024-01-23 | Hans Heidolph GmbH | Modular laboratory device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0648526A1 (en) * | 1993-10-15 | 1995-04-19 | Dr. HERFELD GmbH & Co. KG | Mixing device |
DE19708075C1 (en) | 1997-02-28 | 1998-11-05 | Thyssen Industrie | Mixer for a powdery, semolina and / or granular substance |
JP2005052737A (en) * | 2003-08-04 | 2005-03-03 | Misugi:Kk | Stirring device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2116525U (en) * | 1992-04-24 | 1992-09-23 | 密云县粮食局直属库 | Side open sylinder carrier mixing device |
CN2592267Y (en) * | 2002-05-16 | 2003-12-17 | 程耀鈊 | Rotary dual-cone filtering, washing drying and pulverizing machine |
CN2917766Y (en) * | 2006-05-26 | 2007-07-04 | 布勒(常州)机械有限公司 | Shaker |
-
2008
- 2008-08-30 DE DE102008045189A patent/DE102008045189A1/en not_active Withdrawn
-
2009
- 2009-08-24 EP EP09168452A patent/EP2158960B1/en not_active Not-in-force
- 2009-08-24 AT AT09168452T patent/ATE545457T1/en active
- 2009-08-31 CN CN200910170995A patent/CN101658770A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0648526A1 (en) * | 1993-10-15 | 1995-04-19 | Dr. HERFELD GmbH & Co. KG | Mixing device |
DE19708075C1 (en) | 1997-02-28 | 1998-11-05 | Thyssen Industrie | Mixer for a powdery, semolina and / or granular substance |
JP2005052737A (en) * | 2003-08-04 | 2005-03-03 | Misugi:Kk | Stirring device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114699964A (en) * | 2022-04-06 | 2022-07-05 | 中国核电工程有限公司 | Mixing device and glove box system |
Also Published As
Publication number | Publication date |
---|---|
DE102008045189A1 (en) | 2010-03-04 |
EP2158960B1 (en) | 2012-02-15 |
ATE545457T1 (en) | 2012-03-15 |
CN101658770A (en) | 2010-03-03 |
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