DE19940521A1 - Mixer kneader - Google Patents

Mixer kneader

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Publication number
DE19940521A1
DE19940521A1 DE19940521A DE19940521A DE19940521A1 DE 19940521 A1 DE19940521 A1 DE 19940521A1 DE 19940521 A DE19940521 A DE 19940521A DE 19940521 A DE19940521 A DE 19940521A DE 19940521 A1 DE19940521 A1 DE 19940521A1
Authority
DE
Germany
Prior art keywords
shaft
kneading
shafts
mixing kneader
recess
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.)
Granted
Application number
DE19940521A
Other languages
German (de)
Other versions
DE19940521C2 (en
Inventor
Daniel Arnaud
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
List AG
Original Assignee
List AG
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Filing date
Publication date
Application filed by List AG filed Critical List AG
Priority to DE19940521A priority Critical patent/DE19940521C2/en
Priority to ES00116475T priority patent/ES2262474T3/en
Priority to DE50012557T priority patent/DE50012557D1/en
Priority to AT00116475T priority patent/ATE322941T1/en
Priority to EP00116475A priority patent/EP1078682B1/en
Publication of DE19940521A1 publication Critical patent/DE19940521A1/en
Application granted granted Critical
Publication of DE19940521C2 publication Critical patent/DE19940521C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • B01F27/701Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers
    • B01F27/702Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers with intermeshing paddles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90Heating or cooling systems
    • B01F2035/98Cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90Heating or cooling systems
    • B01F35/92Heating or cooling systems for heating the outside of the receptacle, e.g. heated jackets or burners
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90Heating or cooling systems
    • B01F35/95Heating or cooling systems using heated or cooled stirrers

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Crushing And Grinding (AREA)
  • Accessories For Mixers (AREA)

Abstract

The mixing bar (23.3,23.5) on one of the shafts (5/6) engages with one end in the plane (E) of the support elements (24,25,35) in the other shaft (6/5) where at least one supporting element (24/25,35) forms a recess (26,26.1) in the region of the path of the mixing bar (23.3,23.5). The mixer for mechanical, chemical and/or thermal process has two axially parallel, rotating shaft (5,6) in a housing with inner wall (31). The mixing bars (23-23.6) that are formed in the rotation direction and in the axial direction of the shaft run along the inner wall (31) of the housing and in the direction of the shaft or diagonal to the direction of the shaft (5,6) are located on a support element (22,24,25,34,36). The paths of the bars and the support element partially overlap on both shafts, and on turning the bars engages one of the shafts (5 or 6) between the support elements (22,24,25,34,36) on the other shaft (6 or 5).

Description

Die Erfindung betrifft einen Mischkneter zur Durchführung von mechanischen, chemischen und/oder thermischen Prozessen mit mindestens zwei achsparallel rotierenden Wellen in einem Gehäuse mit einer Innenwandung, wobei sich auf den Wellen in Drehrichtung und in Achsrichtung der Wellen aufeinanderfolgende, entlang der Innenwandung des Gehäuses und in Richtung der Wellen bzw. schräg dazu verlaufende Knetbarren an einem Tragelement befinden, wobei sich die Bahnen der Knetbarren bzw. Tragelemente an den beiden Wellen zumindest teilweise überlappen und beim Drehen die Knetbarren an der einen Welle zwischen die Tragelemente an der anderen Welle greifen.The invention relates to a mixer kneader for implementation of mechanical, chemical and / or thermal processes with at least two axially rotating shafts in a housing with an inner wall, the Shafts in the direction of rotation and in the axial direction of the shafts successive, along the inner wall of the housing and in the direction of the waves or at an angle to it Kneading bars are on a support element, the Paths of the kneading bars or support elements on the two Waves at least partially overlap and when rotating the Kneading bars on one shaft between the support elements grab the other wave.

In vielen industriellen Bereichen, insbesondere aber in der chemischen Industrie müssen heute Produkte behandelt werden. Bspw. müssen in einem oben beschriebenen Mischkneter zwei chemische Produkte so innig miteinander vermengt werden, dass sie zumindest zum Teil miteinander reagieren. Dabei können diese Produkte einen beliebigen Aggregatzustand durchlaufen, so dass maschinentechnische Anforderungen an einen Mischkneter sehr hoch sind.In many industrial areas, but especially in the chemical industry must treat products today become. E.g. must be in one described above  Mixing kneader two chemical products so intimately with each other are mixed up that they are at least partly with each other react. These products can be any Go through physical state, so that mechanical Requirements for a mixer kneader are very high.

Im wesentlichen werden einwellige und zweiwellige Mischkneter unterschieden. Die vorliegende Erfindung betrifft einen zweiwelligen Mischkneter, wie er bspw. in der CH-A 506 322 beschrieben ist. Dort befinden sich auf einer Welle radiale Scheibenelemente und zwischen den Scheiben angeordnete axial ausgerichtete Knetbarren. Zwischen diese Scheiben greifen von der anderen Welle rahmenartig geformte Knetelement ein. Diese Knetelemente reinigen die Scheiben und Knetbarren der ersten Welle. Die Knetbarren auf beiden Wellen reinigen wiederum die Gehäuseinnenwand.Essentially, single-shaft and double-shaft Mixing kneaders distinguished. The present invention relates to a twin-screw mixer, such as in CH-A 506 322 is described. Are on there radial shaft disc elements and between the Disc-arranged axially aligned kneading bars. Between these disks reach from the other shaft a kneading element shaped like a frame. These kneading elements clean the discs and kneading bars of the first shaft. The Kneading bars on both shafts in turn clean the Housing inner wall.

Weitere Ausführungsformen von zweiwelligen Mischknetern sind in der EP 92 10 88 29.0 beschrieben.Further embodiments of twin-screw mixers are described in EP 92 10 88 29.0.

Bei all diesen zweiwelligen Misch- und Knetmischern geht es unter anderem darum, sämtliche Flächen, die mit dem zu behandelnden Produkt in Berührung kommen und insbesondere die beheizten Flächen, das sind vor allem Innenmantel, Welle und Tragelement, von Produktankrustungen oder - anhaftungen zu befreien. Bei der o. g. Europäischen Patentanmeldung 92 10 88 29.0 geschieht dies bereits in weitgehendem Masse, allerdings bleibt infolge der aus kinematischen Gründen notwendigen Lücke zwischen den Knet- und Transportelementen auf der Gehäuseinnenwand immer ein Ring stehen, der nicht abgereinigt wird. All these twin-shaft mixing and kneading mixers work among other things, all the areas that are covered by the treating product come into contact and in particular the heated surfaces, which are primarily the inner jacket, Shaft and support element, from incrustations or - rid of attachments. At the above European Patent application 92 10 88 29.0 already does this in largely, but remains as a result of necessary gap between the kneading and transport elements on the inside wall of the housing Stand ring that is not cleaned.  

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, die Innenreinigung eines derartigen Mischkneters noch weiter zu verbessern.The present invention is based on the object Internal cleaning of such a mixer kneader even further improve.

Zur Lösung dieser Aufgabe führt, dass zumindest ein Knetbarren auf der einen Welle mit einem Ende in die Ebene von Tragelementen auf der anderen Welle eingreift, wobei mindestens ein Tragelement im Bereich der Bahn dieses zumindest einen Knetbarrens eine Ausnehmung ausbildet.To solve this problem, at least one Kneading bars on one shaft with one end in the plane of support elements engages on the other shaft, wherein at least one support element in the area of the web of this at least one kneading bar forms a recess.

Bevorzugt rotieren die Wellen achsparallel und gleichsinnig.The shafts preferably rotate parallel to the axis and in the same direction.

Mit dieser Ausgestaltung wird erreicht, dass der Knetbarren, welcher die Ausnehmung durchfährt, die Ebene der Tragelemente überlappt und damit einen Ring von haften gebliebenen Produkten an der Gehäuseinnenwand bei jeder Drehung der Welle abreinigt. Somit wird gewährleistet, dass die gesamte Innenwand des Gehäuses in regelmässigen Abständen von Produktankrustungen od. dgl. befreit wird.This configuration ensures that the Kneading bar, which runs through the recess, the plane of the support elements overlaps and thus adhere to a ring products left on the inside wall of each Rotation of the shaft cleans. This ensures that the entire inner wall of the case in regular Clearance of product increments or the like.

In einem Ausführungsbeispiel kann das Tragelement ein einfacher Stamm sein, auf den ein Knetbarren aufgesetzt ist. Auf diese Weise wird ein T-förmiges Knet- und Transportelement ausgebildet. Erfindungsgemäss soll zumindest ein Stamm im Bereich der Bahn des mit ihm kämmenden Knetbarren der anderen Welle einen Rücksprung aufweisen, so dass eine Ausnehmung für diesen Knetbarren der anderen Welle gebildet wird. Durch diese Ausnehmung fährt dann ein verlängertes Ende des Knetbarrens der anderen Welle, so dass eine Abreinigung der Gehäuseinnenwand in der Ebene der übrigen Tragelemente stattfinden kann, die einen derartigen Rücksprung nicht aufweist. In one embodiment, the support element can be a be a simple trunk on which a kneading bar is placed is. In this way, a T-shaped kneading and Transport element trained. According to the invention at least one tribe in the web's area with him combing kneading bars of the other wave a return have, so that a recess for this kneading bar the other wave is formed. Through this recess then runs an extended end of the kneading bar another wave, so cleaning up the Inner wall of the housing in the plane of the other supporting elements can take place that such a return does not having.  

Bei einem weiteren Ausführungsbeispiel der Erfindung kann es sich bei dem Tragelement um ein scheibenförmiges Element handeln, auf dessen Peripherie die Knetbarren aufgesetzt sind. In diesem Fall ist einmal vorgesehen, dass das scheibenförmige Element durch eine Ausnehmung in zwei Scheibenteile aufgeteilt ist, wobei die Ausnehmung so ausgestaltet wird, dass die Knetbarren der anderen Welle durch die Ausnehmung hindurchfahren können. Der grössere Scheibenteil ist bevorzugt direkt auf die Welle aufgesetzt, während der kleinere Scheibenteil über einen abgekröpften Zwickel mit der Welle verbunden ist. Dieser abgekröpfte Zwickel bildet wiederum eine Ausnehmung aus, durch die ein Knetbarren der anderen Welle fahren kann.In a further embodiment of the invention the support element is a disc-shaped element act on the periphery of the kneading bars are. In this case it is provided that the disc-shaped element through a recess in two Disk parts is divided, the recess so is designed that the kneading bars of the other shaft can drive through the recess. The bigger one Disk part is preferably placed directly on the shaft, while the smaller part of the pane has a cranked one Gusset is connected to the shaft. This cranked one Gusset in turn forms a recess through which a Kneading bars of the other shaft can drive.

Denkbar ist auch, dass das scheibenförmige Element aus zwei Scheiben besteht, die aufeinander liegen. Dabei überlappt eine Scheibe die andere zur Bildung der oben erwähnten Ausnehmung. Bevorzugt können sich auch beide Scheiben gegenseitig überlappen, damit nicht etwa von einer Scheibe ein Produktring auf der Innenwand ungereinigt zurückbleibt. In diesem Fall sind die Scheiben, bevorzugt spiegelbildlich, kreisbogenartig beschnitten, wobei der entsprechende Kreisbogen einen grösseren Radius aufweist, als die Scheibe selbst. It is also conceivable that the disc-shaped element consists of two There are disks that lie on top of each other. It overlaps one disc the other to form the above Recess. Both disks can also be preferred overlap each other, so not from a disk a product ring remains uncleaned on the inner wall. In this case the disks are preferred mirrored, trimmed like a circular arc, with the the corresponding circular arc has a larger radius, than the disc itself.  

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung; diese zeigt inFurther advantages, features and details of the invention result from the following description more preferred Exemplary embodiments and with reference to the drawing; this shows in

Fig. 1 eine Draufsicht auf einen erfindungsgemässen Mischkneter mit einem teilweise aufgeschnittenen Gehäuse; Figure 1 is a plan view of an inventive mixer kneader with a partially cut housing.

Fig. 2 einen teilweise dargestellten Längsschnitt durch den Mischkneter gemäss Fig. 1; FIG. 2 shows a partially shown longitudinal section through the mixer kneader according to FIG. 1;

Fig. 3 einen Querschnitt durch eine Welle aus dem Mischkneter gemäss Fig. 2 entlang Linie III-III in der Abwicklung gemäss Fig. 4; . Fig. 3 is a cross section through a shaft of the mixing kneader according to Figure 2 along line III-III in accordance with the handling of Fig. 4;

Fig. 4 eine Abwicklung der Welle des Mischkneters gemäss Fig. 2; Fig. 4 is a developed view of the shaft of the mixing kneader according to FIG. 2;

Fig. 5 einen teilweisen dargestellten Längsschnitt durch ein weiteres Ausführungsbeispiel eines Mischkneters; Fig. 5 is a longitudinal partial cross-section through a further embodiment of a mixing kneader;

Fig. 6 einen Querschnitt durch eine Welle aus dem Mischkneter gemäss Fig. 5 entlang Linie VI-VI in der Abwicklung gemäss Fig. 7; Fig. 6 shows a cross section through a shaft of the mixing kneader according to FIG 5 along line VI-VI in accordance with the processing in Fig. 7.

Fig. 7 eine Abwicklung der beiden Wellen des Mischkneters gemäss Fig. 5. Fig. 7 is a developed view of the two shafts of the mixing kneader according to Fig. 5.

Ein Mischkneter P weist gemäss Fig. 1 ein Gehäuse auf, welches aus mehreren Gehäuseabschnitten 1a, 1b und 1c bestehen kann. Die Gehäuseabschnitte sind miteinander durch entsprechende Flanschverbindungen 2 gekoppelt. Im Gehäuseabschnitt 1a ist ein Aufgabestutzen 3 für ein in dem Mischkneter zu behandelndes Produkt und in dem Gehäuseabschnitt 1c ein Auslassstutzen 4 für das behandelnde Produkt vorgesehen.A mixer kneader P has a housing according to FIG. 1, which can consist of several housing sections 1 a, 1 b and 1 c. The housing sections are coupled to one another by corresponding flange connections 2 . In the housing section 1 a there is a feed nozzle 3 for a product to be treated in the mixing kneader and in the housing section 1 c an outlet nozzle 4 for the product to be treated.

Das Produkt wird vom Aufgabestutzen 3 zum Auslassstutzen 4 mittels zweier Wellen 5 und 6 sowie daran angeordneten Knet- und Transportelementen 7 transportiert. Während des Transportes findet eine Mischung und Knetung des Produktes sowie bevorzugt eine thermische Behandlung statt. Hierzu sind die Wellen 5 und 6 und ggf. auch die Knet- und Transportelemente 7 sowie, nicht näher gezeigt, die Gehäusewandung 8 beheizt. Zum Einbringen eines Heizmediums in die Wellen 5 und 6 und von dort ggf. in das Innere der Knet- und Transportelemente 7 sind Anschlüsse 9 und 10 um entsprechende Einlass- und Auslassstutzen 11 und 12 für das durch die Wellen 5 und 6 geführte Heizmedium angeordnet. Eine entsprechende Führung des Heizmediums in Mantelflächen der Wellen 5 und 6 und eine entsprechende Rückführung durch den Auslassstutzen 12 sind Stand der Technik und werden deshalb nicht weiter beschrieben.The product is transported from the feed nozzle 3 to the outlet nozzle 4 by means of two shafts 5 and 6 and kneading and transport elements 7 arranged thereon. During transportation, the product is mixed and kneaded, and preferably a thermal treatment takes place. For this purpose, the shafts 5 and 6 and possibly also the kneading and transport elements 7 and, not shown in more detail, the housing wall 8 are heated. For introducing a heating medium into the shafts 5 and 6 and from there possibly into the interior of the kneading and transport elements 7 , connections 9 and 10 are arranged around corresponding inlet and outlet connections 11 and 12 for the heating medium guided through the shafts 5 and 6 . Appropriate guidance of the heating medium in the outer surfaces of the shafts 5 and 6 and a corresponding return through the outlet connection 12 are state of the art and are therefore not described further.

Zwischen den Anschlüssen 9 und 10 durchgreifen mit den Wellen 5 und 6 verbundene Wellenzapfen 13 und 14 eine Laterne 15, wobei gegen das Gehäuse 1 jeweils eine Stopfbüchse 16 und 17 zur Abdichtung der Welle 5 bzw. 6 vorgesehen ist. Die Wellenzapfen 13 und 14 sind ausserhalb der Laterne über ein entsprechendes Synchronisations­ getriebe mit den Zahnrädern 18 und 19 miteinander gekoppelt, wobei das Synchronisationsgetriebe über einen Riementrieb 20 mit einem Antrieb 21 verbunden ist. Über diesen Antrieb 21 und den Riementrieb 20 werden die Zahnräder 18 und 19 in Drehbewegung versetzt, welche auf die Welle 5 bzw. 6 übertragen werden. Eine Übertragung dieser Drehbewegung auf die Wellen 5 und 6 erfolgt gleichsinnig mit gleicher Drehzahl. Entsprechende Synchronisationsgetriebe sind Stand der Technik und sollen hier nicht näher beschrieben sein.Between the terminals 9 and 10 extend through the shafts 5 and 6 connected to shaft journals 13 and 14, a lantern 15, wherein against the housing 1 are each a stuffing box 16 and 17 for sealing the shaft 5 and 6 are provided. The shaft journals 13 and 14 are coupled to one another outside the lantern via a corresponding synchronization gear with the gears 18 and 19 , the synchronization gear being connected to a drive 21 via a belt drive 20 . Via this drive 21 and the belt drive 20 , the gears 18 and 19 are rotated, which are transmitted to the shaft 5 and 6 , respectively. This rotary motion is transmitted to the shafts 5 and 6 in the same direction at the same speed. Corresponding synchronization gears are state of the art and should not be described in more detail here.

Gemäss Fig. 2 weist jedes Knet- und Transportelement 7 ein Tragelement 22 und einen Knetbarren 23 auf. Entsprechend Fig. 3 ist das Tragelement scheibenförmig ausgestaltet, wobei die Knetbarren auf der Peripherie der scheibenförmigen Tragelemente sitzen.According to FIG. 2, each kneading and transport element 7 on a supporting member 22, and a kneading bar 23rd According to FIG. 3, the support element is designed in the form of a disk, the kneading bars sitting on the periphery of the disk-shaped support elements.

Das scheibenförmige Tragelement gliedert sich auf in einen grösseren und einen kleineren Scheibenteil 24 und 25. Beide Scheibenteile liegen in der selben Ebene und deren Aussenflächen liegen bevorzugt auf dem selben Radius r, der um eine Mittelachse M der Welle 5/6 dreht. Der grössere Scheibenteil 24 und der kleinere Scheibenteil 25 sind durch eine Ausnehmung 26 getrennt, wobei der grössere Scheibenteil 24 zur Ausnehmung 26 hin einen Kreisbogenabschnitt 27 mit einem grösseren Radius als der Radius r aufweist.The disk-shaped support element is divided into a larger and a smaller disk part 24 and 25 . Both disk parts lie in the same plane and are the outer surfaces of preferably the same radius r which rotates about a central axis M of the shaft 5/6. The larger disc part 24 and the smaller disc part 25 are separated by a recess 26 , the larger disc part 24 towards the recess 26 having an arcuate section 27 with a larger radius than the radius r.

Der kleinere Scheibenteil 25, der auf seiner Peripherie immerhin noch zwei Knetbarren 23.1 und 23.2 trägt, weist zur Ausnehmung 26 hin eine gerade Randkante 28 auf. Er ist mit der Welle 5/6 über einen axial versetzten Zwickel 29 verbunden.The smaller disk part 25 , which still has two kneading bars 23.1 and 23.2 on its periphery, has a straight edge 28 towards the recess 26 . It is connected to the shaft 5/6 via an axially offset gusset 29th

Die Ausnehmung 26 ist so angeordnet und gestaltet, dass sie beim Drehen der Wellen 5 und 6 von einem Knetbarren 23.3 durchfahren werden kann. Hierzu ist der Knetbarren 23.3 einseitig verlängert ausgebildet, so dass er mit diesem verlängerten Ende 30 in eine Ebene E eingreift, die beim Drehen der Wellen 5/6 von den in Drehrichtung aufeinanderfolgenden Tragelementen 22 gebildet wird. The recess 26 is arranged and designed such that a kneading bar 23.3 can pass through it when the shafts 5 and 6 are rotated. For this purpose, the kneading bars is 23.3 formed extended on one side, so that it with this extended end 30 in a plane E engages, which is / are formed upon rotation of the shafts 5 6 of the successive support elements in the rotational direction 22nd

Ein anderes Knet- und Transportelement in Axialrichtung der Welle weist dagegen einen Knetbarren 23.4 auf, der zum Zwickel 29 hin ein verkürztes Ende 32 besitzt.Another kneading and transport element in the axial direction of the shaft, on the other hand, has a kneading bar 23.4 , which has a shortened end 32 toward the gusset 29 .

Aus der Abwicklung beider Wellen 5/6 gemäss Fig. 4 geht hervor, dass die grösseren Scheibenteile 24 und die kleineren Scheibenteile 25 der beiden Wellen 5/6 ineinander kämmen. Dabei sind die kleineren Scheibenteile 25 jeweils auf der Welle 5/6 versetzt zueinander angeordnet, so dass bei jedem dritten in Achsrichtung aufeinanderfolgenden scheibenförmigen Tragelement jeweils ein kleineres Scheibenteil 25 vorgesehen ist. Jedes scheibenförmige Tragelement weist in Drehrichtung nur einen Knetbarren 23.3 mit einem verlängerten Ende und einen Knetbarren 23.4 mit einem verkürzten Ende auf.From the settlement of both shafts 5/6 of FIG. 4 shows that the greater disc portions 24 and the smaller disc portions 25 of the two shafts 5/6 mesh with each other. The smaller disc portions 25 are arranged respectively on the shaft 5 added / 6 from each other, is provided so that every third consecutive in the axial direction disc-shaped support element in each case a smaller disc part 25th Each disk-shaped support element has only one kneading bar 23.3 with an extended end and one kneading bar 23.4 with a shortened end in the direction of rotation.

Wie in der Abwicklung gemäss Fig. 4 deutlich erkennbar, wird durch diese Ausgestaltung eine gesamte Innenwand 21 der Gehäusewandung 8 von den Knetbarren bestrichen, da das verlängerte Ende 30 des Knetbarren 23.3 gerade auch diejenigen Lücken 33 überstreicht, welche von den normalen Knetbarren 23 gebildet werden.As clearly evident in the processing of FIG. 4, an entire inner wall 21 of the housing 8 coated by the kneading bars by this configuration, since the extended end 30 of the kneading bars 23.3 sweeps especially those gaps 33, which are formed of the normal kneading bars 23 .

In einer anderen Ausgestaltung gemäss den Fig. 5 bis 7 wird das Knet- und Transportelement durch zwei Scheiben 34 und 35 gebildet, die aufeinanderliegen. Bevorzugt weisen beide Scheiben 34 und 35 einen gleichen Radius r um den Mittelpunkt der Welle 5/6 auf und besitzen einen sich spiegelbildlich gegenüberliegenden Kreisbogenabschnitt 27 mit grösserem Radius als der Radius r. Damit verläuft dieser Kreisbogenabschnitt 27 nahe der Wellenoberfläche und lässt, wie in Fig. 6 erkennbar, einen Flächenbereich 36 der Scheibe 34 frei, so dass hierdurch eine Ausnehmung 26.1 gebildet ist, die von einem verlängerten Ende 30.1 eines Knetbarrens 23.5 bestrichen werden kann. An dieses verlängerte Ende 30.1 ist sogar noch ein radial abragender Flügel 37 angeformt, mit dem zumindest ein Teil der freien Fläche 36 abgereinigt werden kann.In another embodiment according to FIGS. 5 to 7, the kneading and transport element is formed by two disks 34 and 35 which lie one on top of the other. Preferably, both disks have 34 and 35 a same radius r around the center of the shaft 5/6 and have a mirror image opposite circular-arc portion 27 having a larger radius r than the radius. This circular arc section 27 thus runs close to the shaft surface and, as can be seen in FIG. 6, leaves a surface area 36 of the disk 34 free, so that a recess 26.1 is formed thereby, which can be coated by an extended end 30.1 of a kneading bar 23.5 . A radially protruding wing 37 is even integrally formed on this extended end 30.1 , with which at least part of the free surface 36 can be cleaned.

Sollten die Knetbarren 23.5, wie im vorliegenden Ausführungsbeispiel axial in einer Reihe liegen, so weist der Knetbarren 23.5 sowohl das einseitig verlängerte als auch das verkürzte Ende auf, d. h., der Knetbarren 23.5 ist gegenüber den anderen Knetbarren axial versetzt.If the kneading bars 23.5 , as in the present exemplary embodiment, lie axially in a row, then the kneading bars 23.5 have both the one-side elongated and the shortened end, ie the kneading bar 23.5 is axially offset from the other kneading bars.

In der Abwicklung gemäss Fig. 7 und hier insbesondere im oberen Teil ist erkennbar, wie die Knet- und Transportelemente ineinandergreifen. Die Knetbarren insgesamt sind unter einem Winkel zur Längsachse der Welle angestellt. Die Knetbarren 23.5, welche im Gegensatz zu den anderen Knetbarren 23 das verlängerte Ende 30.1 aufweist, bzw. nach rechts versetzt ist, liegt auf einer Achsrichtung schrägverlaufenden Linie. Das gleiche gilt auch für Knetbarren 23.6, die nach links versetzt angeordnet sind. In the development according to FIG. 7 and here in particular in the upper part it can be seen how the kneading and transport elements interlock. The kneading bars as a whole are positioned at an angle to the longitudinal axis of the shaft. The kneading bar 23.5 , which, in contrast to the other kneading bars 23, has the elongated end 30.1 or is offset to the right, lies on a line which runs obliquely in the axial direction. The same also applies to kneading bars 23.6 which are arranged offset to the left.

PositionszahlenlisteItem number list

11

Gehäuseabschnitt
Housing section

22nd

Flanschverbindung
Flange connection

33rd

Aufgabestutzen
Feed nozzle

44th

Auslassstutzen
Outlet connector

55

Welle
wave

66

Welle
wave

77

Knet- und Transportelement
Kneading and transport element

88th

Gehäusewandung
Housing wall

99

Anschluss
connection

1010th

Anschluss
connection

1111

Einlassnippel
Inlet nipple

1212th

Auslassnippel
Outlet nipple

1313

Wellenzapfen
Shaft journal

1414

Wellenzapfen
Shaft journal

1515

Laterne
Lantern

1616

Stopfbüchse
Stuffing box

1717th

Stopfbüchse
Stuffing box

1818th

Getriebeelement
Gear element

1919th

Getriebeelement
Gear element

2020th

Getriebe
transmission

2121

Antrieb
drive

2222

Trageelement
Support element

2323

Knetbarren
Kneading bars

2424th

grössere Scheibenteil
larger pane part

2525th

kleinere Scheibenteil
smaller pane part

2626

Ausnehmung
Recess

2727

Kreisbogenab­ schnitt
Circular arc section

2828

Randkante
Edge

2929

Zwickel
gore

3030th

Ende
The End

3131

Innenwände
Interior walls

3232

verkürztes Ende
shortened end

3333

Lücke
gap

3434

Scheibe
disc

3535

Scheibe
disc

3636

Fläche
area

3737

Flügel
E Ebene
M Mittelachse
P Mischkneter
r Radius
wing
E level
M central axis
P mixer kneader
r radius

Claims (9)

1. Mischkneter zur Durchführung von mechanischen, chemischen und/oder thermischen Prozessen mit mindestens zwei achsparallel rotierenden Wellen (5, 6) in einem Gehäuse mit einer Innenwandung (31), wobei sich auf die Wellen (5, 6) in Drehrichtung und in Achsrichtung der Wellen (5, 6) aufeinanderfolgende, entlang der Innenwandung (31) des Gehäuses und in Richtung der Wellen (5, 6) bzw. schräg dazu verlaufende Knetbarren (23-23.6) an einem Tragelement (22, 24, 25, 34, 36) befinden, wobei sich die Bahnen der Knetbarren (23-23.6) bzw. Tragelement (22, 24, 25, 34, 36) an den beiden Wellen (5, 6) zumindest teilweise überlappen und beim Drehen die Knetbarren (23-23.6) an der einen Welle (5 bzw. 6) zwischen die Tragelemente (22, 24, 25, 34, 36) an der anderen Welle (6 bzw. 5) greifen, dadurch gekennzeichnet, dass der zumindest eine Knetbarren (23.3, 23.5) auf der einen Welle (5/6) mit einem Ende (30, 30.1) in die Ebene (E) von Tragelementen (24, 25, 35) auf der anderen Welle (6/5) eingreift, wobei mindestens ein Tragelement (24/25, 35) im Bereich der Bahn dieses zumindest einen Knetbarrens (23.3, 23.5) eine Ausnehmung (26, 26.1) ausbildet.1. Mixing kneader for carrying out mechanical, chemical and / or thermal processes with at least two axially parallel rotating shafts ( 5 , 6 ) in a housing with an inner wall ( 31 ), the shafts ( 5 , 6 ) in the direction of rotation and in the axial direction of the shafts ( 5 , 6 ) successive kneading bars ( 23-23.6 ) running along the inner wall ( 31 ) of the housing and in the direction of the shafts ( 5 , 6 ) or obliquely thereto on a support element ( 22 , 24 , 25 , 34 , 36 ), the paths of the kneading bars ( 23-23.6 ) or support element ( 22 , 24 , 25 , 34 , 36 ) on the two shafts ( 5 , 6 ) at least partially overlap and the kneading bars ( 23-23.6 ) on one shaft ( 5 or 6 ) between the support elements ( 22 , 24 , 25 , 34 , 36 ) on the other shaft ( 6 or 5 ), characterized in that the at least one kneading bar ( 23.3 , 23.5 ) on the one shaft (5/6) with one end (30, 30.1) in the plane (e) of support lementen (24, 25, 35) engages on the other shaft (6/5), at least one supporting element (24/25, 35) in the region of the track of this at least one kneading bar (23.3, 23.5) has a recess (26, 26.1) trains. 2. Mischkneter nach Anspruch 1, dadurch gekennzeichnet, dass das Tragelement ein Stamm ist, auf dem T-förmig ein Knetbarren aufsitzt und der Stamm in dem Bereich der Bahn des mit ihm kämmenden Knetbarrens der anderen Welle einen Rücksprung aufweist. 2. Mixing kneader according to claim 1, characterized in that that the support element is a trunk, on the T-shaped one Kneading bar sits and the trunk in the area of the web of the other wave's kneading bar meshing with it Has a return.   3. Mischkneter nach Anspruch 1, dadurch gekennzeichnet, dass das Tragelement für die Knetbarren (23, 23.3, 23.4) eine Scheibe /24/25) ist, welche im Bereich der Bahn des mit ihr kämmenden Knetbarrens (23.3) der anderen Welle (5/6) eine Ausnehmung (26) aufweist.3. Mixing kneader according to claim 1, characterized in that the supporting element for the kneading bars ( 23 , 23.3 , 23.4 ) is a disk / 24/25) which, in the region of the path of the kneading bar ( 23.3 ) meshing with it, of the other shaft ( 5 / 6 ) has a recess ( 26 ). 4. Mischkneter nach Anspruch 3, dadurch gekennzeichnet, dass die Scheibe zweigeteilt und durch die Ausnehmung (26) getrennt ist.4. Mixing kneader according to claim 3, characterized in that the disc is divided into two and separated by the recess ( 26 ). 5. Mischkneter nach Anspruch 4, dadurch gekennzeichnet, dass ein kleinerer Scheibenteil (25) über einen abgekröpften Zwickel (29) mit der Welle (5/6) verbunden ist.5. The mixing kneader according to claim 4, characterized in that a smaller disc part (25) is connected via an angled gusset (29) to the shaft (5/6). 6. Mischkneter nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass ein grösserer Scheibenteil (24) kreisbogenartig unter Ausbildung eines Kreisbogens (27) mit einem grösseren Radius beschnitten ist.6. Mixing kneader according to claim 4 or 5, characterized in that a larger disk part ( 24 ) is trimmed like an arc to form a circular arc ( 27 ) with a larger radius. 7. Mischkneter nach Anspruch 3, dadurch gekennzeichnet, dass zwei Scheiben (34, 35) aufeinanderliegen, wobei zumindest eine Scheibe (34) die andere zur Bildung der Ausnehmung überlappt.7. Mixing kneader according to claim 3, characterized in that two disks ( 34 , 35 ) lie one on top of the other, at least one disk ( 34 ) overlapping the other to form the recess. 8. Mischkneter nach Anspruch 7, dadurch gekennzeichnet, dass beide Scheiben (34, 35) sich gegenseitig überlappen.8. Mixing kneader according to claim 7, characterized in that the two disks ( 34 , 35 ) overlap one another. 9. Mischkneter nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass die Scheibe (35) kreisbogenartig unter Ausbildung eines Kreisbogens (27) mit einem grösseren Radius beschnitten ist.9. Mixing kneader according to claim 7 or 8, characterized in that the disc ( 35 ) is trimmed like a circular arc to form a circular arc ( 27 ) with a larger radius.
DE19940521A 1999-08-26 1999-08-26 mixing kneader Expired - Fee Related DE19940521C2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19940521A DE19940521C2 (en) 1999-08-26 1999-08-26 mixing kneader
ES00116475T ES2262474T3 (en) 1999-08-26 2000-07-29 MIXER-MIXER.
DE50012557T DE50012557D1 (en) 1999-08-26 2000-07-29 mixing kneader
AT00116475T ATE322941T1 (en) 1999-08-26 2000-07-29 MIXING KNEADERS
EP00116475A EP1078682B1 (en) 1999-08-26 2000-07-29 Mixing kneader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19940521A DE19940521C2 (en) 1999-08-26 1999-08-26 mixing kneader

Publications (2)

Publication Number Publication Date
DE19940521A1 true DE19940521A1 (en) 2001-04-19
DE19940521C2 DE19940521C2 (en) 2003-02-13

Family

ID=7919693

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19940521A Expired - Fee Related DE19940521C2 (en) 1999-08-26 1999-08-26 mixing kneader
DE50012557T Expired - Lifetime DE50012557D1 (en) 1999-08-26 2000-07-29 mixing kneader

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE50012557T Expired - Lifetime DE50012557D1 (en) 1999-08-26 2000-07-29 mixing kneader

Country Status (4)

Country Link
EP (1) EP1078682B1 (en)
AT (1) ATE322941T1 (en)
DE (2) DE19940521C2 (en)
ES (1) ES2262474T3 (en)

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Also Published As

Publication number Publication date
EP1078682A2 (en) 2001-02-28
EP1078682A3 (en) 2003-08-13
DE50012557D1 (en) 2006-05-24
EP1078682B1 (en) 2006-04-12
DE19940521C2 (en) 2003-02-13
ATE322941T1 (en) 2006-04-15
ES2262474T3 (en) 2006-12-01

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