EP1287880B1 - Mixing apparatus - Google Patents
Mixing apparatus Download PDFInfo
- Publication number
- EP1287880B1 EP1287880B1 EP02018754A EP02018754A EP1287880B1 EP 1287880 B1 EP1287880 B1 EP 1287880B1 EP 02018754 A EP02018754 A EP 02018754A EP 02018754 A EP02018754 A EP 02018754A EP 1287880 B1 EP1287880 B1 EP 1287880B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- propeller
- mixing
- mixing device
- feed shaft
- blades
- 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.)
- Expired - Lifetime
Links
- 238000002156 mixing Methods 0.000 title claims description 60
- 239000000463 material Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 11
- 239000002994 raw material Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 230000010006 flight Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- 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
- B01F23/50—Mixing liquids with solids
- B01F23/53—Mixing liquids with solids using driven stirrers
-
- 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
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/40—Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
- B01F35/41—Mounting or supporting stirrer shafts or stirrer units on receptacles
- B01F35/411—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting only one extremity of the shaft
- B01F35/4112—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting only one extremity of the shaft at the bottom of the receptacle, e.g. by studs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
- B01F27/1144—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections with a plurality of blades following a helical path on a shaft or a blade support
-
- 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
- B01F33/83612—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating by crushing or breaking
Definitions
- the invention relates to a mixing device for mixing a base material with a liquid, with a vertical feed chute for the base material and a mixing chamber arranged below the feed chute, in which the liquid is supplied and a mixing tool is driven in rotation, wherein in the feed chute a about a vertical axis rotating propeller is provided in which are provided in the radial direction extending wing elements, according to the preamble of claim 1.
- liquid from the mixing chamber can spray into the feed chute and there with the base material to bonds or clumping and thus can lead to clogging of the feed chute.
- a propeller conveying into the mixing chamber is provided at the lower end of the feed chute.
- the propeller rotating in the feed chute about a vertical axis is designed such that it either forms a continuous screw conveyor or is composed of individual screw flights, which sit one above the other in the axial direction and in Circumferential direction are offset from each other, so that between them only axial spaces are free. In the axial direction, however, this propeller composed of individual worm gear pieces is also closed, since the individual worm gear pieces overlap each other and overlap.
- the object of the present invention is therefore to develop a mixing device as indicated above in such a way that such a clogging no longer occurs.
- such an embodiment also has the further advantage that the base material is still homogenized by the propeller, which leads to better mixing results in the subsequent mixing with liquid.
- Such a closing of the feed chute against high-spraying liquid from the mixing chamber can be achieved in particular if several (in particular four) vanes are provided on the propeller in a plane which is arranged normal to the central axis of the propeller. If necessary, the propeller can also have several corresponding planes with wings interconnected. This not only increases the "tightness" down but also improves a homogenization of the base material when it is fed to the mixing bracket.
- the feed chute should preferably closely surround the propeller, for example, with a gap width between the rotating blade ends and the wall of the feed chute of less than 5 mm, preferably 0.5 ⁇ 3 mm.
- the mixing tool rotates about a vertical axis.
- the mixing tool arranged below the feed chute in the mixing space is rotatable about a vertical axis. It is advantageous if the supply shaft is rotationally symmetrical and its central axis is aligned with the axis of the mixing tool.
- the propeller can then be mounted directly on the upper end of the mixing tool.
- the blades of the propeller are set in the conveying direction to ensure the supply of raw material into the mixing chamber.
- the feed chute itself can not only be cylindrical as a whole.
- the feed chute can also be formed conically narrowing. As a result, for example, fluidizing powder is compressed, whereby agglomerates are better digested.
- the base material is rather sticky, but it has also proved to be advantageous to form the feed slot conically widening. As a result, such sticky raw materials are loosened.
- FIG. 1 shows the side view of a mixing device.
- a shaft bearing 2a is mounted with electric motor 2b, which is connected via a belt drive 3 with the input shaft 4.
- a mixing drum 6 is flanged, in the inner mixing chamber 7, a mixing tool 8 is driven in rotation.
- the central axis 9 of the mixing tool is aligned in the vertical direction.
- a vertical feed chute 11 is screwed onto this via a flange 10. This feed chute 11 has a smaller diameter than the mixing chamber 7 arranged below the feed chute.
- a propeller 15 Within the feed chute 11 rotates a propeller 15, in which a plurality of wings 17 are distributed over a shaft 16, as can be seen in FIG. 2 in the plan view. In the radial direction, the wings 17 protrude close to the inner wall of the feed chute 11, which thus surrounds the propeller to form a narrow gap. These wings 17 leave within the Zu manufacturedschachtes 11 a plurality of segments 18, which are axially parallel throughout. When the propeller 15 is stationary, 18 raw materials could fall directly into the mixing chamber 7 through these segments.
- the propeller 15 rotates at a speed of more than 200 revolutions per minute (see arrow 19). Characterized homogenized by the wings 17 in the segments 18 base material already within the feed chute 11 before it is then added in the mixing chamber 7, the liquid which is mixed by the mixing tool 8 with the base material.
- the finished mixture is discharged through a discharge pipe 20 from the mixing device.
- the mixing chamber 7 can be kept at the appropriate temperature via cooling water connections 21.
- the vanes 17 are each arranged in one plane.
- two planes, each with four wings 17 arranged therein, are arranged one above the other, wherein the corresponding wings 17 lie exactly one above the other and, as can be seen, are easily adjusted.
- propeller is mounted directly on the mixing tool 8 and thus only one common drive must be provided for mixing tool 8 and propeller 15.
- the feed chute may also have a conically narrowing shape, as indicated by reference numeral 22 in FIG.
- a base material such as fluidizing powder
- it is compacted, which results in agglomerates being better digested in the feed chute 22.
- the invention thus represents a possibility to build a mixing device with a vertical orientation, in which a blockage of the feed chute is reliably avoided and also provides very good mixing results due to a pre-homogenized base material.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Description
Die Erfindung betrifft eine Mischvorrichtung zum Vermischen eines Grundstoffes mit einer Flüssigkeit, mit einem vertikalen Zuführschacht für den Grundstoff und einem unterhalb des Zuführschachtes angeordneten Mischraum, in dem die Flüssigkeit zugeführt wird und ein Mischwerkzeug rotierend antreibbar ist, wobei in dem Zuführschacht ein um eine vertikale Achse rotierender Propeller vorgesehen ist, bei dem sich in Radialrichtung erstreckende Flügelelemente vorgesehen sind, gemäß dem Oberbegriff des Anspruches 1.The invention relates to a mixing device for mixing a base material with a liquid, with a vertical feed chute for the base material and a mixing chamber arranged below the feed chute, in which the liquid is supplied and a mixing tool is driven in rotation, wherein in the feed chute a about a vertical axis rotating propeller is provided in which are provided in the radial direction extending wing elements, according to the preamble of claim 1.
Mit einer Vorrichtung dieser Art, wie Sie beispielsweise aus der DE-A-196 29 945 , US-A-2 074 673, US-A-6 024 481 oder der DE-U-79 14 349 bekannt ist, können Grundstoffe, bei denen es sich insbesondere um pulverförmige oder körnige Feststoffe handeln kann, die auch als Brocken oder als Schollen auftreten, oder bei denen es sich auch um eine Paste handeln kann, mit Flüssigkeiten vermischt werden.With a device of this kind, as is known for example from DE-A-196 29 945, US-A-2 074 673, US-A-6 024 481 or DE-U-79 14 349, can be found in basic materials which may in particular be pulverulent or granular solids which also occur as lumps or floes, or which may also be a paste, are mixed with liquids.
Dabei tritt jetzt das Problem auf, dass Flüssigkeit aus dem Mischraum in den Zuführschacht spritzen kann und dort mit dem Grundstoff zu Verklebungen bzw. Verklumpungen und damit zu einem Zusetzen des Zuführschachtes führen kann. Um dies zu verhindern wird am unteren Ende des Zuführschachtes ein in den Mischraum fördernder Propeller vorgesehen.In this case, the problem now arises that liquid from the mixing chamber can spray into the feed chute and there with the base material to bonds or clumping and thus can lead to clogging of the feed chute. In order to prevent this, a propeller conveying into the mixing chamber is provided at the lower end of the feed chute.
In der DE-A-196 29 945 wird jetzt beschrieben, dass der im Zuführschacht um eine vertikale Achse rotierende Propeller derart ausgestaltet ist, dass er entweder eine durchgängige Förderschnecke bildet oder aber aus einzelnen Schneckengangstücken zusammengesetzt ist, die in axialer Richtung übereinander sitzen und in Umfangsrichtung gegeneinander versetzt sind, so dass zwischen ihnen lediglich axiale Zwischenräume frei sind. In axialer Richtung ist aber auch dieser aus einzelnen Schneckengangstücken zusammengesetzte Propeller verschlossen, da sich die einzelnen Schneckengangstücke jeweils überdecken und überlappen.In DE-A-196 29 945 it is now described that the propeller rotating in the feed chute about a vertical axis is designed such that it either forms a continuous screw conveyor or is composed of individual screw flights, which sit one above the other in the axial direction and in Circumferential direction are offset from each other, so that between them only axial spaces are free. In the axial direction, however, this propeller composed of individual worm gear pieces is also closed, since the individual worm gear pieces overlap each other and overlap.
Es hat sich jetzt herausgestellt, dass diese förderschneckenartigen Propeller in Abhängigkeit von der Konsistenz des Grundstoffes zu Verstopfungen neigen. Es kann passieren, dass sich der brocken- oder schollenförmige Grundstoff in einem Schneckengang verklemmt und festsetzt und somit eine weitere Förderung des Grundstoffes zu der Mischkammer verhindert.It has now been found that these screw-type propellers tend to block depending on the consistency of the base material. It can happen that the pebble-shaped or clod-shaped basic substance jams and sets in a screw flight, thus preventing further transport of the raw material to the mixing chamber.
Aufgabe der vorliegenden Erfindung ist es daher, eine Mischvorrichtung wie oben angegeben derart weiterzubilden, dass ein derartiges Verstopfen nicht mehr auftritt.The object of the present invention is therefore to develop a mixing device as indicated above in such a way that such a clogging no longer occurs.
Diese Aufgabe wird erfindungsgemäß gelöst, durch eine Vorrichtung mit den Merkmalen des Anspruches 1.This object is achieved according to the invention by a device having the features of claim 1.
Es hat sich herausgestellt, dass aufgrund der dort angegebenen achsparallel durchgängigen Freiräume im Propeller eine Verstopfung vermieden wird. Insbesondere hat eine derartige Ausführungsform auch noch den weiteren Vorteil, dass der Grundstoff durch den Propeller noch homogenisiert wird, was bei der anschließenden Vermischung mit Flüssigkeit zu besseren Mischergebnissen führt.It has been found that due to the specified axially parallel open spaces in the propeller, a blockage is avoided. In particular, such an embodiment also has the further advantage that the base material is still homogenized by the propeller, which leads to better mixing results in the subsequent mixing with liquid.
Insbesondere, indem der Propeller mit Geschwindigkeiten von über 200 Umdrehungen pro Minute, vorzugsweise sogar mit Geschwindigkeiten von 300 bis 3000 Umdrehungen pro Minute rotiert, wird im übrigen auch gewährleistet, dass aus dem Mischraum hochspritzende Flüssigkeit nicht in den Zuführschacht eintreten kann und dort zu einer Verklebung und Verklumpung des Grundstoffes führt.In particular, by rotating the propeller at speeds of over 200 revolutions per minute, preferably even at speeds of 300 to 3000 revolutions per minute, it is also ensured that liquid which sprays high up from the mixing chamber can not enter the feed chute and there sticks to it and clumping of the base material leads.
Ein derartiges Verschließen des Zuführschachtes gegen hochspritzende Flüssigkeit aus dem Mischraum ist insbesondere dann zu erreichen, wenn an dem Propeller jeweils mehrere (insbesondere vier) Flügel in einer normal zur Mittelachse des Propellers angeordneten Ebene vorgesehen sind. Nötigenfalls kann der Propeller auch mehrere entsprechenden Ebenen mit Flügeln übereinandergeschaltet aufweisen. Dies erhöht nicht nur die "Dichtigkeit" nach unten sondern verbessert auch eine Homogenisierung des Grundstoffes bei dessen Zuführung zur Mischklammer.Such a closing of the feed chute against high-spraying liquid from the mixing chamber can be achieved in particular if several (in particular four) vanes are provided on the propeller in a plane which is arranged normal to the central axis of the propeller. If necessary, the propeller can also have several corresponding planes with wings interconnected. This not only increases the "tightness" down but also improves a homogenization of the base material when it is fed to the mixing bracket.
Dabei wird bei mehreren Ebenen mit darin liegenden Flügeln aber darauf geachtet, dass die vorhandenen Flügel in Radialrichtung gesehen jeweils parallel zu einem Flügel einer benachbarten Ebene sind. Hierdurch ist auf konstruktiv einfache Weise zu gewährleisten, dass die über die gesamte Höhe es Propellers achsparallel durchgehend flügelfrei gehaltenen Segmente erreicht werden.In this case, care is taken at several levels with wings lying therein, however, that the existing wings in the radial direction are each parallel to a wing of an adjacent level. This is to ensure a structurally simple way that over the entire height of the propeller axially parallel continuously wing-free segments are achieved.
Der Zuführschacht soll den Propeller dabei vorzugsweise eng umgeben, beispielsweise mit einer Spaltbreite zwischen den rotierenden Flügelenden und der Wandung des Zufuhrschachtes von weniger als 5 mm, vorzugsweise von 0,5 ∼ 3 mm.The feed chute should preferably closely surround the propeller, for example, with a gap width between the rotating blade ends and the wall of the feed chute of less than 5 mm, preferably 0.5 ~ 3 mm.
Grundsätzlich ist es zwar im Rahmen dieser Erfindung, wenn das Mischwerkzeug um eine vertikale Achse rotiert. Vorzugsweise ist das unterhalb des Zuführschachtes im Mischraum angeordnete Mischwerkzeug aber um eine vertikale Achse rotierbar. Hierbei ist es dann vorteilhaft, wenn der Zuführschaft rotationssymmetrisch ist und seine Mittelachse mit der Achse des Mischwerkzeuges fluchtet. Dann kann der Propeller insbesondere direkt auf dem oberen Ende des Mischwerkzeuges montiert sein.In principle, it is within the scope of this invention, when the mixing tool rotates about a vertical axis. Preferably, however, the mixing tool arranged below the feed chute in the mixing space is rotatable about a vertical axis. It is advantageous if the supply shaft is rotationally symmetrical and its central axis is aligned with the axis of the mixing tool. In particular, the propeller can then be mounted directly on the upper end of the mixing tool.
Der auf dem oberen Ende des um eine vertikale Achse rotierenden Mischwerkzuges montierte Propeller hat dabei konstruktive Vorteile im Hinblick auf eine einfachere Montierbarkeit und eine leichtere Antreibbarkeit des PropellersThe mounted on the upper end of the rotating about a vertical axis mixer train propeller has design advantages in terms of easier mounting and easier driveability of the propeller
Vorzugsweise sind die Flügel des Propellers in Förderrichtung angestellt, um die Zuführung von Grundstoff in die Mischkammer sicher zu stellen. Der Zuführschacht selber kann dabei nicht nur insgesamt zylindrisch sein. Der Zuführschacht kann auch sich konisch verengend ausgebildet werden. Hierdurch wird beispielsweise fluidisierendes Pulver verdichtet, wodurch Agglomerate besser aufgeschlossen werden.Preferably, the blades of the propeller are set in the conveying direction to ensure the supply of raw material into the mixing chamber. The feed chute itself can not only be cylindrical as a whole. The feed chute can also be formed conically narrowing. As a result, for example, fluidizing powder is compressed, whereby agglomerates are better digested.
Wenn der Grundstoff eher klebrig ist, hat es sich aber auch als vorteilhaft erwiesen, den Zuführschacht konisch erweiternd auszubilden. Hierdurch werden solche klebrigen Grundstoffe aufgelockert.If the base material is rather sticky, but it has also proved to be advantageous to form the feed slot conically widening. As a result, such sticky raw materials are loosened.
Weitere Vorteile und Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen. Dabei zeigt
- Figur 1
- die Seitenansicht einer Mischvorrichtung teilweise geschnitten;
Figur 2- die Aufsicht auf einen Zuführschacht;
Figur 3- eine alternative Ausführungsform eines Zuführschachtes im Schnitt;
- Figur 4
- eine weitere Ausführungsform des Zuführschachtes im Schnitt.
- FIG. 1
- the side view of a mixing device partially cut;
- FIG. 2
- the supervision of a feed shaft;
- FIG. 3
- an alternative embodiment of a feed chute in section;
- FIG. 4
- a further embodiment of the feed chute in section.
In Figur 1 erkennt man die Seitenansicht einer Mischvorrichtung. Auf einem Gestell 1 ist eine Wellenlagerung 2a mit Elektromotor 2b montiert, der über einen Riemenantrieb 3 mit der Eingangswelle 4 verbunden ist.FIG. 1 shows the side view of a mixing device. On a frame 1, a shaft bearing 2a is mounted with electric motor 2b, which is connected via a
An einer Laterne 5 ist eine Mischtrommel 6 angeflanscht, in deren innenliegenden Mischraum 7 ein Mischwerkzeug 8 rotierend antreibbar ist. Die Mittelachse 9 des Mischwerkzeuges ist dabei in Vertikalrichtung ausgerichtet. Am oberen Ende des Mischraumes 7 ist auf diesen über einen Flansch 10 ein vertikaler Zuführschacht 11 aufgeschraubt. Dieser Zuführschacht 11 hat einen geringeren Durchmesser als der unterhalb des Zuführschachtes angeordnete Mischraum 7.On a
Am Flansch 10 sind Flüssigkeitszuführanschlüsse 12 vorgesehen, durch die Flüssigkeit (Pfeile 13) von oben in den Mischraum 7 zugeführt werden kann. Durch ein nicht dargestelltes Führungsrohr, das am oberen Ende des Zuführschachtes angeschlossen ist, fällt gleichermaßen Feststoff (Pfeil 14) von oben kommend in den Zuführschacht 11. Dieser Grundstoff wird durch eine nicht dargestellte Dosiervorrichtung in der gewünschten Menge aufgegeben.At the
Innerhalb des Zuführschachtes 11 rotiert ein Propeller 15, bei dem an einer Welle 16 über den Umfang verteilt mehrere Flügel 17 sitzen, wie dies in der Figur 2 in der Aufsicht zu erkennen ist. In Radialrichtung ragen die Flügel 17 bis dicht an die Innenwand des Zuführschachtes 11, der damit den Propeller unter Bildung eines engen Spaltes umgibt. Diese Flügel 17 lassen innerhalb des Zuführschachtes 11 mehrere Segmente 18 frei, die achsparallel durchgängig sind. Bei stehendem Propeller 15 könnten durch diese Segmente 18 Grundstoffe direkt bis in den Mischraum 7 fallen.Within the
Der Propeller 15 dreht jedoch mit einer Geschwindigkeit von mehr als 200 Umdrehungen pro Minute (vergleiche Pfeil 19). Dadurch wird durch die Flügel 17 in den Segmenten 18 befindlicher Grundstoff bereits innerhalb des Zuführschachtes 11 homogenisiert, bevor ihm im Mischraum 7 dann die Flüssigkeit zugesetzt wird, die durch das Mischwerkzeug 8 mit dem Grundstoff vermischt wird.However, the
Das fertige Gemisch wird durch einen Ableitungsstutzen 20 aus der Mischvorrichtung abgeführt. Um bei dem Mischvorgang entstehende Wärme abführen zu können, kann der Mischraum 7 über Kühlwasseranschlüsse 21 entsprechend auf Temperatur gehalten werden.The finished mixture is discharged through a
Bezüglich des Propellers 15 im Zuführschacht sei noch erwähnt, dass die Flügel 17 jeweils in einer Ebene angeordnet sind. Außerdem ist im hier dargestellten Beispiel zu erkennen, dass zwei Ebenen mit jeweils vier darin angeordneten Flügeln 17 übereinander angeordnet sind, wobei die entsprechenden Flügel 17 exakt übereinanderliegen und wie zu erkennen ist leicht angestellt sind. Durch diese Anstellung wird eine Förderung des durch den Propeller homogenisierten Grundstoffes in Richtung auf den unterhalb des Propellers liegenden Mischraum bewirkt.With regard to the
Außerdem ist bei dem hier dargestellten Ausführungsbeispiel gut zu erkennen, dass der Propeller direkt auf dem Mischwerkzeug 8 montiert ist und somit für Mischwerkzeug 8 und Propeller 15 nur ein gemeinsamer Antrieb vorgesehen sein muss.In addition, in the illustrated embodiment, it can be clearly seen that the propeller is mounted directly on the
Außer einer Ausführungsform mit zylindrischem Zuführschacht 11 wie in Figur 1 dargestellt kann der Zuführschacht auch eine sich konisch verengende Form haben, wie in Figur 3 mit Bezugsziffer 22 dargestellt. Hierdurch wird bei einem Grundstoff wie fluidisierendem Pulver dieses verdichtet, was dazu führt, dass im Zuführschacht 22 Agglomerate besser aufgeschlossen werden.Apart from an embodiment with a
Es ist aber wie in der Figur 4 zu erkennen auch möglich, den (mit Bezugsziffer 23 bezeichneten) Zuführschacht sich konisch erweiternd auszubilden. Hierdurch können klebrige Grundstoffe gut aufgelockert werden.However, as can be seen in FIG. 4, it is also possible to form the feed chute (designated by reference numeral 23) in a conically widening manner. As a result, sticky raw materials can be loosened up well.
Zusammenfassend stellt die Erfindung somit eine Möglichkeit dar, eine Mischvorrichtung mit vertikaler Ausrichtung zu bauen, bei der eine Verstopfung des Zuführschachtes sicher vermieden wird und die aufgrund eines vorhomogenisierten Grundstoffes auch sehr gute Mischergebnisse liefert.In summary, the invention thus represents a possibility to build a mixing device with a vertical orientation, in which a blockage of the feed chute is reliably avoided and also provides very good mixing results due to a pre-homogenized base material.
Claims (13)
- Mixing device for mixing a base material (14) with a liquid (13),
having a vertical feed shaft (11, 22, 23) for the base material (14) and, arranged below the feed shaft (11, 22, 23), a mixing chamber (7) in which the liquid is supplied and a mixing tool (8) is drivable in rotation,
there being provided in the feed shaft (11, 22, 23) a propeller (15), which rotates about a vertical axis, wherein blade elements (17) extending in the radial direction are provided and the feed shaft (11, 22, 23) has a smaller diameter than the mixing chamber (7) which is arranged below the feed shaft,
characterised in that
in the rotating propeller (15) in the feed shaft (11, 22, 23) individual segments (18) in the circumferential direction are blade-free parallel to the axis over the entire height of the propeller (15), forming free spaces in the propeller that are continuous parallel to the axis. - Mixing device according to claim 1,
characterised in that
the propeller (15) rotates at at least 200 min-1, preferably at from at least 300 to more than 3000 min-1. - Mixing device according to claim 1,
characterised in that
a plurality of blades (17), especially four blades, is provided in a plane arranged normal to the centre axis of the propeller (15). - Mixing device according to claim 3,
characterised in that
the propeller (15) has a plurality of planes with blades (17) arranged one above the other. - Mixing device according to claim 4,
characterised in that
in each plane all blades (17) are in the radial direction parallel to a blade (17) of an adjacent plane. - Mixing device according to claim 1,
characterised in that
the feed shaft (11, 22, 23) closely surrounds the propeller (15). - Mixing device according to claim 1,
characterised in that
the mixing tool (8) rotates about a vertical axis (9). - Mixing device according to claim 7,
characterised in that
the feed shaft (11, 22, 23) is rotationally symmetrical and its centre axis is aligned with the axis (9) of the mixing tool (8). - Mixing device according to claim 7,
characterised in that
the propeller (15) is mounted on the upper end of the mixing tool (8). - Mixing device according to claim 1,
characterised in that
the blades (17) of the propeller (15) are angled in the conveying direction. - Mixing device according to claim 1,
characterised in that
the feed shaft (11) is cylindrical. - Mixing device according to claim 1,
characterised in that
the feed shaft (22) is conically tapering. - Mixing device according to claim 1,
characterised in that
the feed shaft (23) is conically expanding.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10141302A DE10141302B4 (en) | 2001-08-28 | 2001-08-28 | Mixing device with propeller in the feed shaft |
| DE10141302 | 2001-08-28 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1287880A2 EP1287880A2 (en) | 2003-03-05 |
| EP1287880A3 EP1287880A3 (en) | 2003-09-03 |
| EP1287880B1 true EP1287880B1 (en) | 2006-09-20 |
Family
ID=7696336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02018754A Expired - Lifetime EP1287880B1 (en) | 2001-08-28 | 2002-08-22 | Mixing apparatus |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20030043691A1 (en) |
| EP (1) | EP1287880B1 (en) |
| DE (2) | DE10141302B4 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116651296B (en) * | 2023-04-23 | 2023-12-15 | 江西大台农饲料有限公司 | Reaction kettle for feed production and production method |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US531718A (en) * | 1895-01-01 | And marshall g | ||
| US350524A (en) * | 1886-10-12 | Churn | ||
| US656674A (en) * | 1899-10-02 | 1900-08-28 | Albert H Stebbins | Ore-concentrating agitator. |
| US1432592A (en) * | 1921-08-03 | 1922-10-17 | Catini Federico | Attachment for soda-fountain faucets |
| US1859290A (en) * | 1929-10-09 | 1932-05-24 | Alemite Corp | Grease dispensing apparatus |
| US2074673A (en) * | 1933-08-10 | 1937-03-23 | Augustus J Sackett | Mixing machine |
| US3179380A (en) * | 1959-11-02 | 1965-04-20 | Dow Chemical Co | Apparatus for coagulation of colloidal dispersions |
| US3948491A (en) * | 1974-03-28 | 1976-04-06 | Perstorp Ab | Process for blending an additive such as colour pigment etc. with a plastic material and blending apparatus intended to be used for said process |
| US4190369A (en) * | 1976-10-13 | 1980-02-26 | National Engineering Company | Method and apparatus for making molds |
| DE7914349U1 (en) * | 1979-05-17 | 1980-10-23 | Wachter Kg Hindelang Baustoffwerk Bautechnik, 8973 Hindelang | DEVICE FOR CONTINUOUSLY MIXING A DRIED MATERIAL WITH A LIQUID AND / OR A FOAM MATERIAL |
| US4611921A (en) * | 1984-12-24 | 1986-09-16 | Texaco Inc. | Debridging apparatus |
| SE503898C2 (en) * | 1994-10-25 | 1996-09-30 | Tetra Laval Holdings & Finance | Mixer for mixing liquids or suspensions and mixing process |
| DE19629945C5 (en) * | 1996-07-25 | 2008-10-16 | Ika-Werke Gmbh & Co. Kg | Mixing device for mixing powdery and / or granular particles with a liquid |
| DE19714264A1 (en) * | 1997-04-07 | 1998-10-08 | Wacker Chemie Gmbh | Mobile device for the production of aqueous liquid paints from powdery constituents and water |
-
2001
- 2001-08-28 DE DE10141302A patent/DE10141302B4/en not_active Expired - Fee Related
-
2002
- 2002-08-15 US US10/222,012 patent/US20030043691A1/en not_active Abandoned
- 2002-08-22 DE DE50208187T patent/DE50208187D1/en not_active Expired - Lifetime
- 2002-08-22 EP EP02018754A patent/EP1287880B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1287880A3 (en) | 2003-09-03 |
| EP1287880A2 (en) | 2003-03-05 |
| DE10141302A1 (en) | 2003-03-27 |
| DE10141302B4 (en) | 2004-03-25 |
| DE50208187D1 (en) | 2006-11-02 |
| US20030043691A1 (en) | 2003-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1276597B1 (en) | Device and method for processing thermoplastic synthetic material | |
| DE2012645A1 (en) | Device for extruding materials that are difficult to extrude, in particular plastic waste | |
| EP2155353B1 (en) | Press screw separator | |
| DE3839671A1 (en) | CONTINUOUSLY WORKING MIXERS | |
| WO2019076631A1 (en) | Twin-flight screw shaft for a mixing and kneading machine | |
| EP1155734B1 (en) | Vertical mixer | |
| CH465840A (en) | Feed device for a plastic screw press | |
| EP1481721A2 (en) | Mixer | |
| DE9419965U1 (en) | Device for producing paint | |
| EP1287880B1 (en) | Mixing apparatus | |
| DE2415593C2 (en) | Silo for storing bulk but difficult-flowing goods | |
| EP0587058A1 (en) | Apparatus for filling valve bags | |
| DE102017004281A1 (en) | Conveyor with screw conveyor and lump breaker | |
| EP3656523B1 (en) | Mixing and kneading machine with efficient venting in the area of the feed-in, and related method | |
| DE2531288C2 (en) | Device for grinding a granular food grist | |
| DE9408205U1 (en) | Trailer for mixing, crushing and distributing animal feed | |
| EP1236690B1 (en) | Device for mixing and drying sludges | |
| WO1986004523A1 (en) | Agglomeration drum | |
| DE4241467A1 (en) | Discharge for slow flowing loose materials - has loosening conveyor member moving against flow of material for continuous flow down side of container walls | |
| DD241530A3 (en) | FEEDING DEVICE FOR EXTRUDER | |
| CH712621A2 (en) | Mixer with single filling and continuous product dispensing. | |
| DE2636361C3 (en) | Device for the continuous conveyance of minced meat | |
| DE19627282A1 (en) | Device to dissolve biological wastes and fibrous wastes | |
| DE202020100181U1 (en) | Mixing mechanism for mixing pourable and liquid media | |
| DE4403607A1 (en) | Measured supply system sending shredded paper to bag packing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: 7B 01F 3/12 B Ipc: 7B 01F 7/20 A Ipc: 7B 01F 7/16 B Ipc: 7B 01F 13/10 B Ipc: 7B 01F 15/00 B Ipc: 7B 01F 7/18 B |
|
| 17P | Request for examination filed |
Effective date: 20030924 |
|
| AKX | Designation fees paid |
Designated state(s): CH DE GB LI |
|
| 17Q | First examination report despatched |
Effective date: 20040920 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE GB LI |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REF | Corresponds to: |
Ref document number: 50208187 Country of ref document: DE Date of ref document: 20061102 Kind code of ref document: P |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20061122 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: R. A. EGLI & CO. PATENTANWAELTE |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20070621 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20080822 Year of fee payment: 7 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20090822 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090822 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20110824 Year of fee payment: 10 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 50208187 Country of ref document: DE Representative=s name: JANY UND PETERSEN PATENTANWAELTE PARTNERSCHAFT, DE Ref country code: DE Ref legal event code: R082 Ref document number: 50208187 Country of ref document: DE Representative=s name: PETERSEN, FRANK, DIPL.-ING., DE |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20121024 Year of fee payment: 11 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140301 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130831 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130831 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50208187 Country of ref document: DE Effective date: 20140301 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 50208187 Country of ref document: DE Representative=s name: PETERSEN, FRANK, DIPL.-ING., DE |