EP2578306A1 - Mixer with grinding and dispersion device - Google Patents
Mixer with grinding and dispersion device Download PDFInfo
- Publication number
- EP2578306A1 EP2578306A1 EP12184925.1A EP12184925A EP2578306A1 EP 2578306 A1 EP2578306 A1 EP 2578306A1 EP 12184925 A EP12184925 A EP 12184925A EP 2578306 A1 EP2578306 A1 EP 2578306A1
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- EP
- European Patent Office
- Prior art keywords
- shaft
- mixer
- chopper
- knives
- mixing
- 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
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
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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
- B01F27/07—Stirrers characterised by their mounting on the shaft
- B01F27/071—Fixing of the stirrer to the shaft
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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
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
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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
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/83—Mixing plants specially adapted for mixing in combination with disintegrating operations
- B01F33/833—Devices with several tools rotating about different axis in the same receptacle
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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
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/836—Mixing plants; Combinations of mixers combining mixing with other treatments
- B01F33/8361—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating
- B01F33/83611—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating by cutting
Definitions
- the invention relates to a mixer for industrial applications, in particular a horizontal mixer with a mixing tool and at least one crushing and dispersing device, also called chopper.
- the invention further relates to a knife for a chopper.
- a mixer according to the present invention comprises a mixing container with a generally cylindrical interior.
- the one or more mixing tools are regularly attached to a shaft one or more blades such as plowshares, Becker blades or stud blades.
- the rotatable shaft usually runs centrally and parallel to the jacket through the mixing container.
- a chopper is a tool usually provided with a plurality of knives, the shaft of which projects into the mixing container and which is able to rotate at high speeds compared to the shaft with the mixing blades attached thereto.
- the soul of a chopper is usually stored on one side of a wall of the mixing container and reaches into the mixing container.
- the load of the one or more knives also transfers to the shaft to which the knives are mounted so that the shaft can experience either some deflection or little lateral deflection after heavy loading. This can lead to damage.
- a horizontal mixer of the type according to the invention which comprises a shaft with mixing blades attached thereto and a chopper, the shaft of the chopper on both Ends is mounted and the shaft of the chopper leads on one side into the housing of the mixing container and on another side of the housing out again.
- the object of the present invention may be designed as described so far. This can in particular also in the from the EP 0722770 A1 be known manner, as far as not deviations are described below.
- a knife further comprises the features of the independent claim.
- a mixer in particular a horizontal mixer with at least one mixing tool and at least one chopper is provided.
- the shaft of the chopper is mounted on two sides to avoid damage under high load.
- the one or more knives of the chopper are designed in two parts, that they are removable from the shaft. If necessary, these can therefore be replaced without having to remove the shaft of the chopper.
- the one or more knives are preferably attached by positive engagement on the shaft in order to keep them particularly reliable. Vibrations and the like can then basically not cause the connection can be solved.
- spacer rings between two blades, which contribute to the positive connection.
- one or more support rings can contribute to the positive connection.
- Spacers are regularly required to maintain a distance between blades sure. Vortellhaft therefore such components are needed in addition to the positive connection used to keep the number of parts low.
- Spacers and support rings are separate components, which are therefore not firmly connected to a shaft. These can basically be moved along a shaft which is passed through the spacers and support rings, as long as such displacement is not prevented by other components. Such a shift is prevented for example by Seegerringe.
- a pressing device by which a contact pressure between a knife and a spacer ring can be generated or generated.
- a contact pressure between a knife and a spacer ring can be generated or generated.
- One or more screws are advantageously provided for generating the contact pressure. It can be generated in a simple manner, a high contact pressure.
- the invention relates to such mixers which have a plurality of choppers to comminute mix.
- the waves of these chopper are stored on both sides.
- a bearing could be supported on side walls of the mixer housing via appropriate linkage.
- the shaft of each chopper is led out on one side into the mixer housing and on another side again. This makes it possible to provide each bearing outside the mixer housing.
- Each bearing is separated from the interior of the mishcer by a seal in this embodiment. A drive for such a wave can then be arranged without problems outside of the interior.
- each knife of the chopper is preferably oriented according to the distances to the adjacent container wall. This results in a plan view of a section (with respect to the knife) seen usually an ellipse shape.
- mixed material is reliably detected, which is located at the bottom, when a corresponding chopper is also disposed adjacent to the ground.
- the product bed is predominantly not at the lowest possible range of a mixing container, because of the mixing tools, the mix is conveyed in the running direction of the mixing tool. Therefore, it is also common to arrange a chopper offset to the deepest area in the mixer housing and that according to the direction of rotation of the one or more mixing tools.
- the shaft of each chopper still runs horizontally adjacent to the deepest ground. It has been found that nevertheless usually the blades of a chopper are completely in the mix and no disadvantages are to be expected. On the other hand, there are constructive advantages bel the support of the engine when the shaft is horizontal. In one embodiment, therefore, the motor for a chopper with horizontally extending shaft is additionally supported and is therefore not held only by the shaft.
- the one or more mixing tools are arranged relative to the one or more choppers so that they always have a distance from each other, wherein distances are advantageously kept low.
- Mixing tools advantageously have a shape such that they promote mixing material in the direction of chopper.
- a positive connection which is supported by a non-positive connection, so as to provide a particularly stable hold.
- the contact pressure is provided by a plurality of screws which are housed in the support ring. These screws are parallel to the shaft. As a result, a contact pressure can be exerted.
- the knives may be rectangular in plan view or taper towards the free ends. These free ends may be formed by peaks, edges or bulges.
- An opening for the passage of a shaft may be square, elliptical or polygonal.
- the cross-section of the shaft then has a matching shape so that the blades reliably rotate together with the shaft. Since this is not guaranteed only due to the shape of a circular diameter of the opening together with wave cross-section, a circular diameter is indeed possible, but less preferable.
- the knives are preferably provided with a wear protection, ie a hardened layer in order to increase the longevity.
- the mixer can be designed as a batch mixer or as a continuous mixer.
- the mixer may be a single-shaft mixer having only one shaft with one or more blades attached thereto.
- the mixer can also be more wavy. It may, for example, be a double-shaft mixer comprising two shafts with blades attached thereto.
- the mixer may be a vertical mixer, which thus comprises a vertical mixing axis.
- the mixing container may be cylindrical or, for example, conical. The product space, so the mixing container can be designed for atmospheric pressure, negative pressure or pressure. There may be more than one comminuting and dispersing device in the longitudinal direction of the mixing-machine axis.
- the substances treated in the mixer can be reliably treated by the comminution and dispersing device so that the substances leave the mixer without lumps.
- the comminution and dispersing apparatus used in a mixer is used for dispersing liquid and pasty products.
- the comminution and dispersing device is used as an auxiliary agent in fine and coagulum agglomeration by the dispersing effect thus produced.
- the shaft of a chopper preferably runs transversely to the shaft with the mixing blades attached thereto in order to achieve good results.
- a bearing provided with bearings bearing block can be provided.
- FIG. 1 shows a mixer 1 and that is a section through a cylindrical shell 2 of the mixing container.
- a shaft 3 Centrally, ie centrally leads through the mixing container through a shaft 3, which is rotatably supported on both sides and can be rotated by a drive.
- the drive is located outside of the mixing tank and is in the FIG. 1 Not shown.
- the shaft 3 leads out through both end walls of the mixing container and is preferably mounted outside of the mixing container. This advantageously ensures that are not in the mix in the warehouse.
- the bearings for the shaft 3 are separated by seals from the interior 4 of the mixing vessel.
- a mixing blade 5 is connected via an axis 6 with the shaft 3. Each mixing blade 5 attached to the shaft 3 is rotated together with the shaft 3.
- a shaft 7 of a chopper Adjacent to the bottom of the mixing container, a shaft 7 of a chopper passes horizontally through opposite wall portions of the mixing container and is rotatably supported by bearings 8 outside the mixing container.
- a sealing system 9 separates the two bearings 8 from the interior 4 of the mixing container.
- a plurality of knives 10 which are dimensioned so that they reach close to the bottom of the container wall 2.
- the blades 10 are shorter than the intervening blades 10 and thus have an elliptic optic in the case of the top view FIG. 1 results.
- a spacer ring 11 first causes a corresponding distance between two adjacent blades 10 is maintained.
- the shaft 7 is acted upon by an electric motor 12.
- FIG. 3 shows a lateral section of the mixer 1 from FIG. 2
- the FIG. 2 illustrates that the shaft 7 is approximately square in section. Also can two, for example, adjacent blades 10 may be aligned perpendicular to each other.
- FIG. 3 a possible construction of such a chopper 13 is clarified in more detail.
- the knives 10 and spacers 11 are arranged between two support rings 14.
- Circlips 15, also known as U-rings or circlips, ensure that the support rings 14 can not be moved beyond the circlips out to the outside in the direction of bearing 8.
- the retaining rings 15 are held by circumferential grooves 16 in the shaft 7.
- At least one support ring 14 has one or more screws 17 which extend parallel to the shaft 7. These screws 17 can be screwed in the direction of knife 10, so as to provide anscht pressure between distance rings eleven and adjacent knives ten.
- the knives 10, which each consist of two parts therefore can not be moved along the axis 7 due to the contact pressure. Since the two parts of each knife intermesh positively, the blades 10 are held by Formschiuss.
- the one or more screws 17 initially exert pressure on a spacer ring 11, which in turn presses against a blade 10 adjacent to the other side.
- FIG. 4 shows a possible embodiment of the intermeshing of two blade halves 18 of a blade 10.
- the positive locking is u, a. reached by hook-shaped encompassing hook 19.
- Hooks 19 of a blade half 19 are arranged on opposite sides of a preferably square opening 20, through which a shaft 7 with a corresponding square cross-section leads in the mounted state. In the assembled state, this results in a total of attachment of the blade 10 to the shaft 7 by positive engagement. This ensures that the knife 10 can be easily replaced without having to remove the shaft 7.
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- Mixers Of The Rotary Stirring Type (AREA)
Abstract
Description
Die Erfindung betrifft einen Mischer für industrielle Anwendungen, insbesondere einen Horizontalmischer mit einem Mischwerkzeug und wenigstens einer Zerkleinerungs- und Dispergiervorrichtung, auch Zerhacker genannt. Die Erfindung betrifft ferner ein Messer für einen Zerhacker.The invention relates to a mixer for industrial applications, in particular a horizontal mixer with a mixing tool and at least one crushing and dispersing device, also called chopper. The invention further relates to a knife for a chopper.
Ein Mischer im Sinne der vorliegenden Erfindung umfasst einen Mischbehälter mit einem in der Regel zylinderförmigen innenraum. Die ein oder mehreren Mischwerkzeuge sind regelmäßig an einer Welle befestigte ein oder mehrere Schaufeln wie Pflugscharschaufeln, Beckerschaufeln oder Stollenschaufeln. Im Fall eines Horizontalmischers erstreckt sich der innenraum nebst Welle und daran angebrachten Mischschaufeln in horizontaler Richtung. Die drehbare Welle verläuft in der Regel zentral sowie parallel zum Mantel durch den Mischbehälter. Ein Zerhacker ist ein in der Regel mit einer Mehrzahl von Messern versehenes Werkzeug, dessen Welle in den Mischbehälter hineinragt und welches im Vergleich zu der Welle mit den daran angebrachten Mischschaufeln mit hohen Drehzahlen zu rotieren vermag. Die Seele eines Zerhackers ist meistens einseitig an einer Wand des Mischbehälters gelagert und erreicht in den Mischbehalter hinein. An der Außenseite befindet sich eine Antriebselnhelt (Motor), mit dem die Welle des Zerhackers angetrieben wird. Darüber hinaus gibt es eine Antriebseinheit für die Welle mit den daran befestigten Mischschaufeln.A mixer according to the present invention comprises a mixing container with a generally cylindrical interior. The one or more mixing tools are regularly attached to a shaft one or more blades such as plowshares, Becker blades or stud blades. In the case of a horizontal mixer, the interior, together with the shaft and mixing blades attached thereto, extends in the horizontal direction. The rotatable shaft usually runs centrally and parallel to the jacket through the mixing container. A chopper is a tool usually provided with a plurality of knives, the shaft of which projects into the mixing container and which is able to rotate at high speeds compared to the shaft with the mixing blades attached thereto. The soul of a chopper is usually stored on one side of a wall of the mixing container and reaches into the mixing container. On the outside there is a Antriebelnhelt (motor), with which the shaft of the chopper is driven. In addition, there is a drive unit for the shaft with the attached mixing blades.
Im Fall einer einseitigen Lagerung einer Welle eines Zerhackers überträgt sich die Belastung der ein oder mehreren Messer auch auf die Welle, an der die Messer befestigt sind, so dass die Welle nach einer starken Belastung entweder eine gewisse Verbiegung oder eine geringe seitliche Auslenkung erfahren kann. Dies kann zu Beschädigungen führen.In the case of a one-sided bearing of a shaft of a chopper, the load of the one or more knives also transfers to the shaft to which the knives are mounted so that the shaft can experience either some deflection or little lateral deflection after heavy loading. This can lead to damage.
Aus der Druckschrift
Der Gegenstand der vorliegenden Erfindung kann wie bisher beschrieben gestaltet sein. Dieser kann insbesondere auch in der aus der
Es ist Aufgabe der vorliegenden Erfindung, einen Mischer der eingangs genannten Art weiterzuentwickeln.It is an object of the present invention to further develop a mixer of the type mentioned.
Die Aufgabe wird mit einem Mischer mit den Merkmalen des ersten Anspruchs gelöst. Vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen. Zur Lösung der Aufgabe umfasst ein Messer ferner die Merkmale des Nebenanspruchs.The object is achieved with a mixer having the features of the first claim. Advantageous embodiments emerge from the subclaims. To solve the problem, a knife further comprises the features of the independent claim.
Zur Lösung der Aufgabe wird ein Mischer, insbesondere ein Horizontalmischer mit zumindest einem Mischwerkzeug und zumindest einem Zerhacker geschaffen. Die Welle des Zerhackers ist zweiseitig gelagert, um Beschädigungen bei hoher Belastung zu vermeiden. Die ein oder mehreren Messer des Zerhackers sind derart zweiteilig ausgeführt, dass diese von der Welle abnehmbar sind. Bei Bedarf können diese daher ausgetauscht werden, ohne dafür die Welle des Zerhackers ausbauen zu müssen.To achieve the object, a mixer, in particular a horizontal mixer with at least one mixing tool and at least one chopper is provided. The shaft of the chopper is mounted on two sides to avoid damage under high load. The one or more knives of the chopper are designed in two parts, that they are removable from the shaft. If necessary, these can therefore be replaced without having to remove the shaft of the chopper.
Die ein oder mehreren Messer sind vorzugsweise durch Formschluss an der Welle angebracht, um diese besonders zuverlässig zu halten. Vibrationen und dergleichen können dann grundsätzlich nicht dazu führen, dass die Verbindung gelöst werden kann.The one or more knives are preferably attached by positive engagement on the shaft in order to keep them particularly reliable. Vibrations and the like can then basically not cause the connection can be solved.
Vorteilhaft gibt es ein oder mehrere Distanzringe zwischen zwei Messern, die zur formschlüssigen Verbindung beitragen. Alternativ oder ergänzend können ein oder mehrere Stützringe zur formschlüssigen Verbindung beitragen. Distanzringe sind regelmäßig erforderlich, um einen Abstand zwischen Messern sicherzustellen. Vortellhaft werden daher solche ohnehin benötigten Bauteile ergänzend für das formschlüssige Verbinden genutzt, um die Zahl der Teile gering zu halten. Distanzringe und Stützringe sind separate Bauteile, die also nicht fest mit einer Welle verbunden sind. Diese können grundsätzlich entlang einer Welle verschoben werden, die durch die Distanzringe und Stützringe hindurchgeführt ist, solange ein solches Verschieben nicht durch andere Bauteile verhindert wird. Ein solches Verschieben wird beispielsweise durch Seegerringe verhindert.Advantageously, there are one or more spacer rings between two blades, which contribute to the positive connection. Alternatively or additionally, one or more support rings can contribute to the positive connection. Spacers are regularly required to maintain a distance between blades sure. Vortellhaft therefore such components are needed in addition to the positive connection used to keep the number of parts low. Spacers and support rings are separate components, which are therefore not firmly connected to a shaft. These can basically be moved along a shaft which is passed through the spacers and support rings, as long as such displacement is not prevented by other components. Such a shift is prevented for example by Seegerringe.
Befinden sich die Messer, Distanzringe sowie Stützringe eines Zerhackers zwischen zwei geeignet angeordneten Seegerringen auf einer Welle, so können die Messer in einer Ausführungsform der Erfindung nicht mehr von der Welle abgenommen werden. Für ein Abnehmen eines Messers von der Welle muss dann erst ein Seegerring von der Welle abgenommen werden.Are the knives, spacers and support rings of a chopper between two suitably arranged snap rings on a shaft, so the knives can not be removed from the shaft in an embodiment of the invention. To remove a knife from the shaft, a circlip must first be removed from the shaft.
Vorzugsweise gibt es eine Presseinrichtung, durch die ein Anpressdruck zwischen einem Messer und einem Distanzring erzeugt werden kann oder erzeugt ist. Durch die Presseinrichtung wird vorteilhaft erreicht, dass ein Messer sehr stabil gehalten wird.Preferably, there is a pressing device, by which a contact pressure between a knife and a spacer ring can be generated or generated. By the pressing device is advantageously achieved that a knife is kept very stable.
Ein oder mehrere Schrauben sind vorteilhaft für das Erzeugen des Anpressdrucks vorgesehen. Es kann so auf einfache Weise ein hoher Anpressdruck erzeugt werden.One or more screws are advantageously provided for generating the contact pressure. It can be generated in a simple manner, a high contact pressure.
Die Erfindung betrifft insbesondere solche Mischer, die mehrere Zerhacker aufweisen, um Mischgut zu zerkleinern. Die Wellen dieser Zerhacker sind beidseitig gelagert. Technisch wäre es machbar, eine oder beide Lagerungen innerhalb des Mischergehäuses vorzusehen. Ein Lager könnte zum Beispiel an seitlichen Wänden des Mischergehäuses über entsprechendes Gestänge gestützt werden. Allerdings weist eine solche Ausgestaltung Nachteile auf, da die Lagerung(en) vom Mischgut während des Betriebes umgeben wären und außerdem eine technisch aufwändige Konstruktion erforderlich wäre. Bevorzugt wird daher die Welle eines jeden Zerhackers an einer Seite in das Mischergehäuse hinein und an einer anderen Seite wieder herausgeführt. Dies macht es möglich, ein jedes Lager außerhalb des Mischergehäuses vorzusehen. Ein jedes Lager wird bei dieser Ausführungsform vom innenraum des Mishcers durch eine Dichtung getrennt. Auch ein Antrieb für eine solche Welle kann dann unproblematisch außerhalb des innenraums angeordnet werden.In particular, the invention relates to such mixers which have a plurality of choppers to comminute mix. The waves of these chopper are stored on both sides. Technically, it would be feasible to provide one or both bearings within the mixer housing. For example, a bearing could be supported on side walls of the mixer housing via appropriate linkage. However, such a design has disadvantages, since the storage (s) would be surrounded by the mix during operation and also a technically complex construction would be required. Preferably, therefore, the shaft of each chopper is led out on one side into the mixer housing and on another side again. This makes it possible to provide each bearing outside the mixer housing. Each bearing is separated from the interior of the mishcer by a seal in this embodiment. A drive for such a wave can then be arranged without problems outside of the interior.
Die Messerlänge eines jeden Messers des Zerhackers orientiert sich bevorzugt nach den Abständen zur benachbarten Behälterwand. Es ergibt sich so in Aufsicht auf einen Schnitt (bezüglich des Messers) gesehen in der Regel eine Ellipsenform. Dadurch wird Mischgut zuverlässig erfasst, welches sich am Grund befindet, wenn ein entsprechender Zerhacker ebenfalls benachbart zum Grund angeordnet ist. Das Produktbett befindet sich zwar überwiegend nicht beim tiefstmöglichen Bereich eines Mischbehälters, da aufgrund der Mischwerkzeuge das Mischgut in Laufrichtung des Mischwerkzeugs gefördert wird. Daher ist es auch üblich, einen Zerhacker versetzt zum tiefsten Bereich im Mischergehäuse anzuordnen und zwar gemäß der Drehrichtung der ein oder mehreren Mischwerkzeuge. In einer vorteilhaften Ausführungsform der Erfindung verläuft die Welle eines jeden Zerhackers dennoch horizontal benachbart zum tiefsten Grund. Es hat sich nämlich herausgestellt, dass dennoch üblicherweise die Messer eines Zerhackers sich vollständig im Mischgut befinden und keine Nachteile zu erwarten sind. Auf der anderen Seite ergeben sich konstruktive Vorteile bel der Abstützung des Motors, wenn die Welle horizontal verläuft. In einer Ausführungsform ist daher der Motor für einen Zerhacker mit horizontal verlaufender Welle zusätzlich abgestützt und wird also nicht lediglich durch die Welle gehalten.The knife length of each knife of the chopper is preferably oriented according to the distances to the adjacent container wall. This results in a plan view of a section (with respect to the knife) seen usually an ellipse shape. As a result, mixed material is reliably detected, which is located at the bottom, when a corresponding chopper is also disposed adjacent to the ground. Although the product bed is predominantly not at the lowest possible range of a mixing container, because of the mixing tools, the mix is conveyed in the running direction of the mixing tool. Therefore, it is also common to arrange a chopper offset to the deepest area in the mixer housing and that according to the direction of rotation of the one or more mixing tools. In an advantageous embodiment of the invention, the shaft of each chopper still runs horizontally adjacent to the deepest ground. It has been found that nevertheless usually the blades of a chopper are completely in the mix and no disadvantages are to be expected. On the other hand, there are constructive advantages bel the support of the engine when the shaft is horizontal. In one embodiment, therefore, the motor for a chopper with horizontally extending shaft is additionally supported and is therefore not held only by the shaft.
Die ein oder mehreren Mischwerkzeuge sind relativ zu den ein oder mehreren Zerhackern so angeordnet, dass diese stets untereinander einen Abstand aufweisen, wobei Abstände vorteilhaft gering gehalten sind. Mischwerkzeuge weisen vorteilhaft eine solche Form auf, dass diese Mischgut in Richtung Zerhacker fördern.The one or more mixing tools are arranged relative to the one or more choppers so that they always have a distance from each other, wherein distances are advantageously kept low. Mixing tools advantageously have a shape such that they promote mixing material in the direction of chopper.
Anstelle einer formschlüssigen Verbindung kommen auch kraftschlüssige Verbindungen in Betracht. Besonders vorteilhaft ist eine formschlüssige Verbindung, die durch eine kraftschlüssige Verbindung unterstützt wird, um so für einen besonders stabilen Halt zu sorgen.Instead of a positive connection and positive connections come into consideration. Particularly advantageous is a positive connection, which is supported by a non-positive connection, so as to provide a particularly stable hold.
Es sind aber auch Schraubverbindungen von zwei Messerhälften möglich, was aber weniger aufgrund eines erhöhten Aufwands zu bevorzugen ist.But there are also screw connections of two blade halves possible, but this is less preferable due to an increased effort.
Der Anpressdruck wird durch eine Mehrzahl von Schrauben bereitgestellt, die im Stützring untergebracht sind. Diese Schrauben verlaufen parallel zur Welle. Hierdurch kann ein Anpressdruck ausgeübt werden.The contact pressure is provided by a plurality of screws which are housed in the support ring. These screws are parallel to the shaft. As a result, a contact pressure can be exerted.
Die Messer können von der Welle ausgehend in Aufsicht rechteckig sein oder sich zu den freien Enden hin verjüngen. Diese freien Enden können durch Spitzen, Kanten oder Wölbungen gebildet sein. Eine Öffnung für die Durchführung einer Welle kann quadratisch, ellipsenförmig oder vieleckig sein. Der Querschnitt der Welle weist dann eine damit übereinstimmende Form auf, damit die Messer sich zuverlässig zusammen mit der Welle drehen. Da dies allein aufgrund der Form nicht bei einem kreisrunden Durchmesser der Öffnung nebst Wellenquerschnitt gewährleistet ist, ist ein kreisrunder Durchmesser zwar möglich, aber weniger zu bevorzugen.Starting from the shaft, the knives may be rectangular in plan view or taper towards the free ends. These free ends may be formed by peaks, edges or bulges. An opening for the passage of a shaft may be square, elliptical or polygonal. The cross-section of the shaft then has a matching shape so that the blades reliably rotate together with the shaft. Since this is not guaranteed only due to the shape of a circular diameter of the opening together with wave cross-section, a circular diameter is indeed possible, but less preferable.
Die Messer sind vorzugsweise mit einem Verschleißschutz versehen, also einer gehärteten Schicht, um die Langlebigkeit zu steigern.The knives are preferably provided with a wear protection, ie a hardened layer in order to increase the longevity.
Als Antrieb kann eingesetzt werden:
- Motor mit einer festen Drehzahl
- Pol umschaltbar mit zwei Drehzahlen
- oder mit variabler Drehzahl frequenzgeregelt.
- Motor with a fixed speed
- Pole switchable with two speeds
- or frequency controlled with variable speed.
Der Mischer kann als Chargenmischer oder als kontinuierlicher Mischer ausgestaltet sein.The mixer can be designed as a batch mixer or as a continuous mixer.
Der Mischer kann ein einwelliger Mischer sein, der nur eine Welle mit daran angebrachten ein oder mehreren Schaufeln. Der Mischer kann aber auch mehr wellig sein. Es kann sich also zum Beispiel um einen doppeiwelligen Mischer handeln, der zwei Wellen mit daran angebrachten Schaufeln umfasst. Der Mischer kann ein Vertikalmischer sein, der also eine vertikal verlaufende Mischwerkachse umfasst. Der Mischbehälter kann zylinderförmig oder zum Beispiel konisch sein. Der Produktraum, also der Mischbehälter kann für atmosphärischen Druck, Unterdruck oder Überdruck ausgebildet sein. Es kann mehr als eine Zerkleinerungs- und Dispergiervorrichtung in Längsrichtung der Mischwerkachse vorgesehen sein.The mixer may be a single-shaft mixer having only one shaft with one or more blades attached thereto. The mixer can also be more wavy. It may, for example, be a double-shaft mixer comprising two shafts with blades attached thereto. The mixer may be a vertical mixer, which thus comprises a vertical mixing axis. The mixing container may be cylindrical or, for example, conical. The product space, so the mixing container can be designed for atmospheric pressure, negative pressure or pressure. There may be more than one comminuting and dispersing device in the longitudinal direction of the mixing-machine axis.
Die im Mischer behandelten Stoffe können von der Zerkleinerungs- und Dispergiervorrichtung zuverlässig so behandelt werden, dass die Stoffe den Mischer klumpenfrei verlassen. In einer anderen Art der Anwendung wird die Zerkleinerungs- und Dispergiervorrichtung ingesetzt in einem Mischer zur Dispergierung von flüssigen und pastösen Produkten genutzt. In einer weiteren Art der Anwendung, vorzugsweise bel der Behandlung von Stäuben oder der Aufbauagglomeration von Schüttgütern in einem Mischer, wird die Zerkleinerungs- und Dispergiervorrichtung durch den damit erzeugten Dispergiereffekt als Hilfsmlttel bei der Fein- und Grobagglomeration genutzt.The substances treated in the mixer can be reliably treated by the comminution and dispersing device so that the substances leave the mixer without lumps. In another type of application, the comminution and dispersing apparatus used in a mixer is used for dispersing liquid and pasty products. In a further type of application, preferably the treatment of dusts or the buildup agglomeration of bulk solids in a mixer, the comminution and dispersing device is used as an auxiliary agent in fine and coagulum agglomeration by the dispersing effect thus produced.
Die Welle eines Zerhackers verläuft vorzugsweise quer zur Welle mit den daran angebrachten Mischschaufeln, um zu guten Ergebnissen zu gelangen. Als Lager kann ein mit Wälzlagern versehener Lagerblock vorgesehen sein. Darüber hinaus gibt es zum Beispiel Dichtringe oder andere Dichtungen, um den Durchgang einer Welle in den Mischbehälter hinein abzudichten.The shaft of a chopper preferably runs transversely to the shaft with the mixing blades attached thereto in order to achieve good results. As a bearing provided with bearings bearing block can be provided. In addition, for example, there are sealing rings or other seals to seal the passage of a shaft into the mixing container.
Es zeigen:
-
Figur 1 : Querschnitt durch einen Mischer; -
Figur 2 : Längsschnitt durch einen Mischer; -
Figur 3 : Aufbau eines Zerhackers; -
Figur 4 : seltliche Ansicht eines Messers.
-
FIG. 1 : Cross section through a mixer; -
FIG. 2 : Longitudinal section through a mixer; -
FIG. 3 : Construction of a chopper; -
FIG. 4 : Mental view of a knife.
Benachbart zum Grund des Mischbehälters führt eine Welle 7 eines Zerhackers horizontal durch gegenüberliegende Wandbereiche des Mischbehälters hindurch und wird außerhalb des Mischbehälters durch Lager 8 drehbar gelagert. Ein Dichtungssystem 9 trennt die beiden Lager 8 vom innenraum 4 des Mischbehälters.Adjacent to the bottom of the mixing container, a
An der Welle 7 sind eine Mehrzahl von Messern 10 angebracht, die so dimensioniert sind, dass sie bis nahe zum Grund der Behälterwand 2 reichen. Dies führt dazu, dass Messer 10 nahe beim Durchgang der Welle 7 durch eine Wand 2 hindurch kürzer sind als dazwischen liegende Messer 10 und sich so eine elliptische Optik im Fall der Aufsicht gemäß
Die Welle 7 wird durch einen Elektromotor 12 angetrleben.The
Die
In der
Die ein oder mehreren Schrauben 17 üben einen Druck zunächst auf einen Distanzring 11 aus, der wiederum gegen ein auf der anderen Seite angrenzendes Messer 10 drückt.The one or
Die
Claims (10)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011084053A DE102011084053A1 (en) | 2011-10-05 | 2011-10-05 | Mixer with crushing and dispersing device |
Publications (1)
Publication Number | Publication Date |
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EP2578306A1 true EP2578306A1 (en) | 2013-04-10 |
Family
ID=46940341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12184925.1A Withdrawn EP2578306A1 (en) | 2011-10-05 | 2012-09-19 | Mixer with grinding and dispersion device |
Country Status (2)
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EP (1) | EP2578306A1 (en) |
DE (1) | DE102011084053A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104289123A (en) * | 2014-09-28 | 2015-01-21 | 南京同皓干燥设备有限公司 | Coulter type mixer |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014218463A1 (en) | 2014-09-15 | 2016-03-17 | Gebrüder Lödige Maschinenbau GmbH | Mixing device for industrial applications |
CN112755887A (en) * | 2021-01-24 | 2021-05-07 | 江苏弘积医疗器械有限公司 | A agitating unit for producing polyvinyl chloride |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1297325B (en) * | 1966-11-03 | 1969-06-12 | Draiswerke Gmbh | Trough mixer with a spraying device for mixing fibrous materials |
EP0359942A2 (en) * | 1988-09-17 | 1990-03-28 | Gebr. Lödige Maschinenbau Gesellschaft mbH | Machine for treating pourable, pasty and/or flowable material with incorporated preparating device |
DE19503753A1 (en) * | 1994-02-08 | 1995-08-10 | Georg Fischer Giesereianlagen | Equipment for mixing and processing free-flowing materials |
EP0722770A1 (en) | 1994-11-16 | 1996-07-24 | Gebrüder Lödige Maschinenbaugesellschaft mbH | Processing element for solid substances |
US6076754A (en) * | 1999-04-16 | 2000-06-20 | Littlef Ord Day, Incorporated | Mixer apparatus with improved chopper assembly |
DE202006002134U1 (en) * | 2005-08-16 | 2006-05-24 | Haack, Eberhard, Dr.-Ing. | Device accepting high centrifugal forces exerted by meat-cutting blades, comprises mountings in plane of blades, for interlocking and retention by interference fit |
-
2011
- 2011-10-05 DE DE102011084053A patent/DE102011084053A1/en not_active Withdrawn
-
2012
- 2012-09-19 EP EP12184925.1A patent/EP2578306A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1297325B (en) * | 1966-11-03 | 1969-06-12 | Draiswerke Gmbh | Trough mixer with a spraying device for mixing fibrous materials |
EP0359942A2 (en) * | 1988-09-17 | 1990-03-28 | Gebr. Lödige Maschinenbau Gesellschaft mbH | Machine for treating pourable, pasty and/or flowable material with incorporated preparating device |
DE19503753A1 (en) * | 1994-02-08 | 1995-08-10 | Georg Fischer Giesereianlagen | Equipment for mixing and processing free-flowing materials |
EP0722770A1 (en) | 1994-11-16 | 1996-07-24 | Gebrüder Lödige Maschinenbaugesellschaft mbH | Processing element for solid substances |
US6076754A (en) * | 1999-04-16 | 2000-06-20 | Littlef Ord Day, Incorporated | Mixer apparatus with improved chopper assembly |
DE202006002134U1 (en) * | 2005-08-16 | 2006-05-24 | Haack, Eberhard, Dr.-Ing. | Device accepting high centrifugal forces exerted by meat-cutting blades, comprises mountings in plane of blades, for interlocking and retention by interference fit |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104289123A (en) * | 2014-09-28 | 2015-01-21 | 南京同皓干燥设备有限公司 | Coulter type mixer |
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DE102011084053A1 (en) | 2013-04-11 |
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