WO1984002679A1 - Mixing device - Google Patents

Mixing device Download PDF

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Publication number
WO1984002679A1
WO1984002679A1 PCT/EP1984/000009 EP8400009W WO8402679A1 WO 1984002679 A1 WO1984002679 A1 WO 1984002679A1 EP 8400009 W EP8400009 W EP 8400009W WO 8402679 A1 WO8402679 A1 WO 8402679A1
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WO
WIPO (PCT)
Prior art keywords
mixing
tool
mixing tool
mixing device
diameter
Prior art date
Application number
PCT/EP1984/000009
Other languages
German (de)
French (fr)
Inventor
Friedrich Walter Herfeld
Original Assignee
Herfeld Friedrich W
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Herfeld Friedrich W filed Critical Herfeld Friedrich W
Priority to DE8484900504T priority Critical patent/DE3463013D1/en
Publication of WO1984002679A1 publication Critical patent/WO1984002679A1/en

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Classifications

    • 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
    • B01F27/84—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with two or more stirrers rotating at different speeds or in opposite directions about the same axis

Definitions

  • the invention relates to a mixing device according to the preamble of claim 1.
  • a mixing device of the type required in the preamble of claim 1 is known from GB-A-1 432 520.
  • the two mixing tools extend right up to the inner wall of the mixing container. Their cross-sectional area - based on a section along the vertical axis of rotation - is approximately the same. Both mixing tools are driven at the same speed, but in the opposite direction.
  • Such a mixing device has a considerable energy requirement and introduces an undesirably large part of the energy in the form of thermal loss work into the mixture, which leads to a strong heating of the mixture with an overall poor mixing effect.
  • the invention is therefore based on the object of designing a mixing device of the type required in the preamble of claim 1 in such a way that the energy requirement is reduced and at the same time the mixing effect is improved.
  • the actual circulation of the material to be mixed is brought about by the lower mixing tool.
  • This circulation of the mixed material is not hindered by the upper mixing tool.
  • This upper mixing tool which is driven at a higher speed than the lower mixing tool and which also has a smaller diameter than the lower mixing tool and is substantially flatter, preferably knife-like, specifically detects nests and agglomerates of the mixed material during its circulating movement . Due to its design, only a small amount of energy is introduced into the mix by the upper mixing tool. In this way, an excellent mixing effect is achieved with less energy to be used. As a result, the mix is not or only slightly warmed during the mixing process.
  • FIG. 1 shows a first exemplary embodiment of a misalignment device according to the invention
  • FIG. 2 shows a top view of the mixing device according to FIG. 1 (with the cover removed), 3 shows a section through a second exemplary embodiment of the invention.
  • the mixing device shown in FIGS. 1 and 2 contains a base 1 on which a support column 2 is arranged.
  • the support column 2 carries a mixing container 3 which is designed as a cylindrical container with a vertical axis.
  • the bottom 4 and the peripheral wall 5 of the mixing container 3 can be double-walled and flowed through by a cooling medium.
  • a lid 6 closes the mixing container 3.
  • a discharge device 7 is used for discharge.
  • An inner agitator shaft 10 which is designed as a hollow shaft, is mounted in the support and guide bearings 8, 9 within the support column 2 and is inserted through the base 4 into the mixing container 3 and carries a lower mixing tool 12 with two mixing blades on a hub 11 .
  • the outer agitator shaft 10 is driven by a drive motor 13 via a bevel gear.
  • the wings of the lower mixing tool 12 run essentially radially in the inner region and are inclined in the outer region against the direction of rotation relative to the radial direction.
  • the lower mixing tool 12 sweeps over the bottom 4 of the mixing container 3.
  • the axial height of the wings of the lower mixing tool 12 decreases towards the outside of the wing.
  • the lower mixing tool 12 is used for uniform circulation of the material to be mixed.
  • the Path 14 of the mixed material is shown schematically in dash-dotted lines in FIG. Of course, this web 14 is also superimposed on a U component.
  • a ⁇ -inner agitator shaft 15 is rotatably driven by a separate drive motor 16 via a drive Riemenan ⁇ .
  • the inner agitator shaft 15 extends through the hub 11 and carries an upper mixing tool 18 on a hub 17, which is formed by two radially arranged knife blades.
  • the diameter of the upper mixing tool 18 is significantly smaller than that of the lower mixing tool 12.
  • the diameter of the circle swept by the upper mixing tool 18 is between 0.25 and 0.8 times, preferably between 0.5 and 0 , 7 times the inner diameter of the mixing container 3.
  • the width of the knife blades forming the upper mixing tool 18 is at least five times greater in the circumferential direction than the height in the axial direction.
  • the cross-sectional area of the upper mixing tool 18 (based on a section along the vertical axis of rotation, see FIG. 1) is at most 1/10 of the cross-sectional area of the lower mixing tool 12.
  • the knife blades of the upper mixing tool 18 have a cutting edge 19 on the front end side in the direction of rotation. Both the lower mixing tool 12 and the upper mixing tool 18 rotate counterclockwise (refer to Fig. 2).
  • the material to be mixed is brought into a uniform, slow circulating movement without excessive energy being introduced into the material to be mixed.
  • the upper mixing tool 18 rotating at a higher speed than the lower mixing tool 12,... Ensures effective detection and comminution of agglomerates and nests of the material to be mixed. Since the knife blades of the upper mixing tool 18 only detect the part of the material to be returned (moving from top to bottom), only a small amount of energy is required to drive the upper mixing tool 18.
  • the upper mixing tool 18 is expediently driven at least twice as fast as the lower mixing tool 12. However, higher speeds are also possible.
  • the circulation movement of the material to be mixed is not impaired by the upper mixing tool 18, but is favored.
  • the energy introduced by the lower mixing tool 12 can be reduced, which eliminates the risk of the mixture being heated undesirably.
  • the mixing device contains a stirring bowl 20 which is attached to a support pin
  • the mixing container 22 sits. This support pin 21 can be swiveled through 180 °, so that the mixing bowl 20 is tilted can.
  • the mixing container 22 is provided with a bottom mounting device 23.
  • the mixing tools already explained namely a lower mixing tool 12 and an upper mixing tool 18, are arranged within the stirring bowl 20.
  • the function of the mixing device corresponds to the exemplary embodiment according to FIGS. 1 and 2.
  • the lower and upper mixing tools 12 and 18 are driven by separate motors 13 and 16, within the scope of the invention it is of course also possible to use a common motor to operate the lower and upper mixing tools. with the interposition of a gear stage, which is preferably designed as a planetary gear.

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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)

Abstract

Mixing device having two mixing tools (12, 18), the diameter of the upper mixing tool (18) being smaller than the diameter of the lower tool (12); the upper mixing tool (18) is substantially flatter and driven at a higher rotation speed than the lower mixing tool (12). Such a mixing device enables to obtain a particularly good mixing efficiency without any inadmissible heating and with a low energy consumption.

Description

Mischvorrichtung Mixing device
Die Erfindung betrifft eine Mischvorrichtung ent¬ sprechend dem Oberbegriff des Anspruches 1.The invention relates to a mixing device according to the preamble of claim 1.
Eine Mischvorriσhtung der im Oberbegriff des An¬ spruches 1 vorausgesetzten Art „ist durch die GB-A- 1 432 520 bekannt. Die beiden Mischwerkzeuge erstrecken sich hierbei bis unmittelbar an die Innenwand des Mischbehälters. Ihre Querschnitts¬ fläche - bezogen auf einen Schnitt längs der verti¬ kalen Drehachse - ist annähernd gleich. Beide Mischwerkzeuge werden mit gleicher Drehzahl, jedoch in entgegengesetzter Drehrichtung, angetrieben.A mixing device of the type required in the preamble of claim 1 is known from GB-A-1 432 520. The two mixing tools extend right up to the inner wall of the mixing container. Their cross-sectional area - based on a section along the vertical axis of rotation - is approximately the same. Both mixing tools are driven at the same speed, but in the opposite direction.
Eine derartige Mischvorrichtung besitzt einen er¬ heblichen Energiebedarf und leitet einen uner¬ wünscht großen Teil der Energie in Form thermi¬ scher Verlustarbeit in das Mischgut ein, was zu einer starken Erwärmung des Mischgutes bei insge¬ samt schlechter Mischwirkung führt.Such a mixing device has a considerable energy requirement and introduces an undesirably large part of the energy in the form of thermal loss work into the mixture, which leads to a strong heating of the mixture with an overall poor mixing effect.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Mischvorrichtung der im Oberbegriff des An- Spruches 1 vorausgesetzten Art so auszubilden, daß der Energiebedarf verringert und zugleich die Mischwirkung verbessert wird.The invention is therefore based on the object of designing a mixing device of the type required in the preamble of claim 1 in such a way that the energy requirement is reduced and at the same time the mixing effect is improved.
Diese Aufgabe wird erfindungsgemäß durch die kenn- zeichnenden Merkmale des Anspruches 1 gelöst.According to the invention, this object is achieved by the characterizing features of claim 1.
ö Bei der erfindungsgemäßen Mischvorrichtung wird die eigentliche Umwälzung des Mischgutes durch das untere Mischwerkzeug bewirkt. Diese Umwälzung des Mischgutes wird durch das obere Mischwerkzeug nicht behindert. Dieses mit höherer Drehzahl als das untere Mischwerkzeug angetriebene obere Misch- -Werkzeug,_das außerde -einen kleineren Durchmesser als das untere Mischwerkzeug besitzt und wesent¬ lich flacher, vorzugsweise messerartig, ausgebil- det ist, erfaßt gezielt Nester und Agglomerate des Mischgutes bei seiner Umwälzbewegung. Durch das obere Mischwerkzeug wird aufgrund seiner Gestal¬ tung nur eine geringe Energie In das Mischgut einge¬ leitet. Man erreicht auf diese Weise eine ausge- zeichnete Mischwirkung bei kleiner aufzuwendender Energie. Das Mischgut wird infolgedessen während des Mischvorganges nicht oder nur geringfügig er¬ wärmt.ö In the mixing device according to the invention, the actual circulation of the material to be mixed is brought about by the lower mixing tool. This circulation of the mixed material is not hindered by the upper mixing tool. This upper mixing tool, which is driven at a higher speed than the lower mixing tool and which also has a smaller diameter than the lower mixing tool and is substantially flatter, preferably knife-like, specifically detects nests and agglomerates of the mixed material during its circulating movement . Due to its design, only a small amount of energy is introduced into the mix by the upper mixing tool. In this way, an excellent mixing effect is achieved with less energy to be used. As a result, the mix is not or only slightly warmed during the mixing process.
Zweckmäßige Ausgestaltungen der Erfindung sind Ge¬ genstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.
In der Zeichnung zeigenShow in the drawing
Fig.1 ein erstes Ausführungsbeispiel einer er¬ findungsgemäßen Misσhvorrie tung,1 shows a first exemplary embodiment of a misalignment device according to the invention,
Fig.2 eine Aufsicht auf die Mischvorrichtung gemäß Fig.1 (bei abgenommenem Deckel), Fig.3 einen Schnitt durch ein zweites Ausführungs¬ beispiel der Erfindung.2 shows a top view of the mixing device according to FIG. 1 (with the cover removed), 3 shows a section through a second exemplary embodiment of the invention.
Die in den Fig.1 und 2 dargestellte Mischvorrich- tung enthält einen Sockel 1 , auf dem eine Tragsäule 2 angeordnet ist. Die Tragsäule 2 trägt einen Mischbehälter 3, der als zylindrischer Behälter mit vertikaler Achse ausgebildet ist. Der Boden 4 und die Umfangswand 5 des Mischbehälters 3 können doppelwandig ausgebildet sein und von einem Kühl¬ medium durchströmt werden. Ein Deckel 6 schließt den Mischbehälter 3 ab. Zum Austrag dient eine Aus- tragsvorrichtung 7.The mixing device shown in FIGS. 1 and 2 contains a base 1 on which a support column 2 is arranged. The support column 2 carries a mixing container 3 which is designed as a cylindrical container with a vertical axis. The bottom 4 and the peripheral wall 5 of the mixing container 3 can be double-walled and flowed through by a cooling medium. A lid 6 closes the mixing container 3. A discharge device 7 is used for discharge.
Innerhalb der Tragsäule 2 ist in Trag- und Führungs¬ lagern 8, 9 eine als Hohlwelle ausgebildete äußere Rührwerkwelle 10 gelagert, die durch den Boden 4 in den Mischbehälter 3 eingeführt ist und an einer Nabe 11 ein unteres Mischwerkzeug 12 mit zwei Misch¬ flügeln trägt. Die äußere Rührwerkwelle 10 wird von einem Antriebsmotor 13 über ein Kegelradgetriebe angetrieben.An inner agitator shaft 10, which is designed as a hollow shaft, is mounted in the support and guide bearings 8, 9 within the support column 2 and is inserted through the base 4 into the mixing container 3 and carries a lower mixing tool 12 with two mixing blades on a hub 11 . The outer agitator shaft 10 is driven by a drive motor 13 via a bevel gear.
Die Flügel des unteren Mischwerkzeuges 12 verlaufen im inneren Bereich im wesentlichen radial und sind im äußeren Bereich entgegen der Drehrichtung gegen¬ über der radialen Richtung geneigt. Das untere Mischwerkzeug 12 überstreicht den Boden 4 des Misch¬ behälters 3. Die axiale Höhe der Flügel des unteren Mischwerkzeuges 12 verringert sich nach außen hin zum Flügelende. Das untere Mischwerkzeug 12 dient zur gleichmäßigen Umwälzung des Mischgutes. Die Bahn 14 des Mischgutes ist in Fig.1 schematisch in strichpunktierten Linien eingezeichnet. Dieser Bahn 14 überlagert sich selbstverständlich noch eine U fangskomponente.The wings of the lower mixing tool 12 run essentially radially in the inner region and are inclined in the outer region against the direction of rotation relative to the radial direction. The lower mixing tool 12 sweeps over the bottom 4 of the mixing container 3. The axial height of the wings of the lower mixing tool 12 decreases towards the outside of the wing. The lower mixing tool 12 is used for uniform circulation of the material to be mixed. The Path 14 of the mixed material is shown schematically in dash-dotted lines in FIG. Of course, this web 14 is also superimposed on a U component.
Innerhalb des äußeren Rührwerkwelle 10 ist eine ^-innere Rührwerkwelle 15 gelagert, die von einem gesonderten Antriebsmotor 16 über einen Riemenan¬ trieb angetrieben wird. Die innere Rührwerkwelle 15 reicht durch die Nabe 11 hindurch und trägt an einer Nabe 17 ein oberes Mischwerkzeug 18, das durch zwei radial angeordnete Messerflügel gebil¬ det wird. Der Durchmesser des oberen Mischwerkzeu- ges 18 ist wesentlich kleiner als der des unteren Mischwerkzeuges 12. Der Durchmesser des vom oberen Mischwerkzeug 18 überstrichenen Kreises beträgt zwischen dem 0,25- und 0,8-fachen, vorzugsweise zwischen dem 0,5- und 0,7-fachen, des Innendurch¬ messers des Mischbehälters 3.Within the outer agitator shaft 10 is a ^ -inner agitator shaft 15 is rotatably driven by a separate drive motor 16 via a drive Riemenan¬. The inner agitator shaft 15 extends through the hub 11 and carries an upper mixing tool 18 on a hub 17, which is formed by two radially arranged knife blades. The diameter of the upper mixing tool 18 is significantly smaller than that of the lower mixing tool 12. The diameter of the circle swept by the upper mixing tool 18 is between 0.25 and 0.8 times, preferably between 0.5 and 0 , 7 times the inner diameter of the mixing container 3.
Die Breite der das obere Mischwerkzeug 18 bilden¬ den Messerflügel ist in Umfangsriehtung mindestens fünfmal größer als die Höhe in axialer Richtung. Die Querschnittsfläche des oberen Mischwerkzeuges 18 (bezogen auf einen Schnitt längs der vertikalen Drehachse, vgl. Fig.1) beträgt höchstens 1/10 der Querschnittsfläche des unteren Mischwerkzeuges 12.The width of the knife blades forming the upper mixing tool 18 is at least five times greater in the circumferential direction than the height in the axial direction. The cross-sectional area of the upper mixing tool 18 (based on a section along the vertical axis of rotation, see FIG. 1) is at most 1/10 of the cross-sectional area of the lower mixing tool 12.
An der in Drehrichtung vorderen Stirnseite weisen die Messerflügel des oberen Mischwerkzeuges 18 eine Schneidkante 19 auf. Sowohl das untere Mischwerkzeug 12 als auch das obere Mischwerkzeug 18 rotieren im Gegenuhrzeigersinn (bezogen auf Fig.2) .The knife blades of the upper mixing tool 18 have a cutting edge 19 on the front end side in the direction of rotation. Both the lower mixing tool 12 and the upper mixing tool 18 rotate counterclockwise (refer to Fig. 2).
Durch das untere Mischwerkzeug 12 wird das Misch¬ gut in eine gleichmäßige, langsame Umwälzbewegung versetzt, ohne daß übermäßig viel Energie in das Mischgut eingeleitet wird. Das mit höherer Dreh¬ zahl als das untere Mischwerkzeug 12,.umlaufende obere Mischwerkzeug 18 gewährleistet eine wirkungs¬ volle Erfassung und Zerkleinerung von Agglomera- ten und Nestern des Mischgutes. Da die Messerflügel des oberen Mischwerkzeuges 18 nur den jeweils rück¬ laufenden (sich von oben nach unten bewegenden) Teil des Mischgutes erfassen, ist für den Antrieb des oberen Mischwerkzeuges 18 nur eine geringe Energie erforderlich. Das obere Mischwerkzeug 18 wird zweckmäßig mindestens doppelt so schnell wie das untere Mischwerkzeug 12 angetrieben. Es sind jedoch auch höhere Drehzahlen möglich. Da das obere Mischwerkzeug 18 mit gleicher Drehrichtung wie das untere Mischwerkzeug 12 umläuft, wird die Umwälzbe¬ wegung des Mischgutes durch das obere Mischwerkzeug 18 nicht beeinträchtigt, sondern begünstigt. Infol¬ gedessen kann bei gleicher Umwälzung die durch das untere Mischwerkzeug 12 eingeleitete Energie ver- ringert werden, was die Gefahr einer unerwünschten Erwärmung des Mischgutes ausschließt.By means of the lower mixing tool 12, the material to be mixed is brought into a uniform, slow circulating movement without excessive energy being introduced into the material to be mixed. The upper mixing tool 18 rotating at a higher speed than the lower mixing tool 12,... Ensures effective detection and comminution of agglomerates and nests of the material to be mixed. Since the knife blades of the upper mixing tool 18 only detect the part of the material to be returned (moving from top to bottom), only a small amount of energy is required to drive the upper mixing tool 18. The upper mixing tool 18 is expediently driven at least twice as fast as the lower mixing tool 12. However, higher speeds are also possible. Since the upper mixing tool 18 rotates in the same direction of rotation as the lower mixing tool 12, the circulation movement of the material to be mixed is not impaired by the upper mixing tool 18, but is favored. As a result, with the same circulation, the energy introduced by the lower mixing tool 12 can be reduced, which eliminates the risk of the mixture being heated undesirably.
Bei dem in Fig.3 dargestellten zweiten Ausführungs¬ beispiel der Erfindung enthält die Mischvorrich- tung eine Rührschale 20, die an einem TragzapfenIn the second exemplary embodiment of the invention shown in FIG. 3, the mixing device contains a stirring bowl 20 which is attached to a support pin
21 sitzt. Dieser Tragzapfen 21 ist um 180° verschwenk¬ bar , so daß die Rührschale 20 gekippt werden kann. Auf der Rührschale 20 sitzt ein Mischbehäl¬ ter 22, der von der Rührschale 20 lösbar ist. In einer gegenüber Fig.3 um 180° gekippten Stellung der Rührschale 20 kann der dann nach unten wei- sende Mischbehälter 22 von der Rührschale 20 ab¬ genommen werden. Der Mischbehälter 22 ist mit einer Bodenanistragvorrichtung 23 versehen.21 sits. This support pin 21 can be swiveled through 180 °, so that the mixing bowl 20 is tilted can. A mixing container 22, which is detachable from the stirring bowl 20, sits on the stirring bowl 20. In a position of the mixing bowl 20 which is tilted by 180 ° in relation to FIG. 3, the mixing container 22, which then points downward, can be removed from the mixing bowl 20. The mixing container 22 is provided with a bottom mounting device 23.
Innerhalb der Rührschale 20 sind die bereits er- läuterten Mischwerkzeuge angeordnet, nämlich ein unteres Mischwerkzeug 12 und ein oberes Mischwerk¬ zeug 18. Die Funktion der Mischvorrichtung ent¬ spricht dem Ausführungsbeispiel gemäß Fig.1 und 2.The mixing tools already explained, namely a lower mixing tool 12 and an upper mixing tool 18, are arranged within the stirring bowl 20. The function of the mixing device corresponds to the exemplary embodiment according to FIGS. 1 and 2.
Während bei den beiden dargestellten Ausführungs¬ beispielen das untere und obere Mischwerkzeug 12 bzw. 18 durch gesonderte Motoren 13 bzw. 16 ange¬ trieben sind, ist es im Rahmen der Erfindung selbstverständlich auch möglich, das untere und obere Mischwerkzeug durch einen gemeinsamen Motor . unter Zwischenschaltung einer Getriebestufe anzu¬ treiben, die vorzugsweise als Planetengetriebe aus¬ gebildet wird. While in the two illustrated embodiments the lower and upper mixing tools 12 and 18 are driven by separate motors 13 and 16, within the scope of the invention it is of course also possible to use a common motor to operate the lower and upper mixing tools. with the interposition of a gear stage, which is preferably designed as a planetary gear.

Claims

Patentansprüche: Claims:
1. Mischvorrichtung, enthaltend1. Mixing device containing
a) einen im wesentlichen zylindrischen Misch¬ behälter (3) mit vertikaler Achse,a) an essentially cylindrical mixing container (3) with a vertical axis,
b) zwei koaxial zueinander durch den Bodenb) two coaxial to each other through the floor
(4) des Mischbehälters (3) hindurchgeführte Rührwerkwellen (10, 15),(4) agitator shafts (10, 15) passed through the mixing container (3),
c) ein von der äußeren Rührwerkwelle (10) ge¬ tragenes, dicht über dem Boden (4) des Mischbehälters (3) angeordnetes, unteres Mischwerkzeug (12) , dessen Durchmesser an¬ nähernd dem Innendurchmesser des Mischbe¬ hälters (3) entspricht,c) a lower mixing tool (12) carried by the outer agitator shaft (10) and arranged closely above the bottom (4) of the mixing container (3), the diameter of which corresponds approximately to the inside diameter of the mixing container (3),
d) ein von der inneren Rührwerkwelle (15) ge- tragenes, über dem unteren Mischwerkzeug (12) angeordnetes oberes Mischwerkzeug (18) ,d) an upper mixing tool (18) carried by the inner agitator shaft (15) and arranged above the lower mixing tool (12),
gekennzeichnet durch folgende Merkmale:characterized by the following features:
e) Der Durchmesser des oberen Mischwerkzeuges (18) ist kleiner als der des unteren Mischwerkzeuges (12) ; e ) The diameter of the upper mixing tool (18) is smaller than that of the lower mixing tool (12);
f) das obere Mischwerkzeug (18) ist wesentlich flacher als das untere Mischwerkzeug (12) , vor¬ zugsweise messerartig ausgebildet;f) the upper mixing tool (18) is substantially flatter than the lower mixing tool (12), preferably knife-like;
S&r>_ IPO 9S &r> _ IPO 9
1 g) das obere Mischwerkzeug (18) ist mit höherer1 g) the upper mixing tool (18) is higher
Drehzahl als das untere Mischwerkzeug (12) antreibbar.Speed can be driven as the lower mixing tool (12).
5 2. Mischvorrichtung nach Anspruch 1, dadurch ge¬ kennzeichnet, daß das obere Mischwerkzeug (18)5 2. Mixing device according to claim 1, characterized in that the upper mixing tool (18)
„ ,_~- durch wenigstens zwei radial angeordnete Messer¬ flügel gebildet wird, deren Breite in Umfangs- richtung mindestens fünfmal größer als die 0 Höhe in axialer Richtung ist. “, _ ~ - is formed by at least two radially arranged blade wings, the width of which in the circumferential direction is at least five times greater than the 0 height in the axial direction.
3. Mischvorrichtung nach Anspruch 1 , dadurch ge¬ kennzeichnet, daß der Durchmesser des vom oberen Mischwerkzeug (18) überstrichenen Krei- 5 ses zwischen dem 0,25- und 0,8-fachen, vorzugs¬ weise zwischen 0,5- und 0,7-fachen, des Innen¬ durchmessers des Mischbehälters (3) beträgt.3. Mixing device according to claim 1, characterized ge indicates that the diameter of the circle 5 ses swept by the upper mixing tool (18) between 0.25 and 0.8 times, preferably between 0.5 and 0 , 7 times, the inner diameter of the mixing container (3).
4. MischVorrichtung nach Anspruch 1, dadurch ge— 0 kennzeichnet, daß die Querschnittsfläche des oberen Mischwerkzeuges (18) - bezogen auf einen Schnitt längs der vertikalen Drehachse - höchstens 1/10 der Querschnittsfläche des un¬ teren Mischwerkzeuges (12) beträgt. 54. Mixing device according to claim 1, characterized in that the cross-sectional area of the upper mixing tool (18) - based on a section along the vertical axis of rotation - is at most 1/10 of the cross-sectional area of the lower mixing tool (12). 5
5. Mischvorrichtung nach Anspruch 1 , dadurch ge¬ kennzeichnet, daß das untere Mischwerkzeug (12) durch wenigstens zwei Flügel gebildet wird, deren innerer Bereich im wesentlichen radial 0 verläuft und deren äußerer Bereich entgegen der Drehrichtung gegenüber der radialen Richtung geneigt ist. 5. Mixing device according to claim 1, characterized ge indicates that the lower mixing tool (12) is formed by at least two blades, the inner region of which extends essentially radially 0 and the outer region of which is inclined against the direction of rotation with respect to the radial direction.
6. Mischvorrichtung nach Anspruch 5, dadurch ge¬ kennzeichnet, daß sich die axiale Höhe der Flügel des unteren Misσhwerkzeuges (12) zum Flügelende nach außen hin verringert.6. Mixing device according to claim 5, characterized ge indicates that the axial height of the wing of the lower Misσhwerkzeuges (12) to the wing end decreases towards the outside.
7. Misσhvorrichtung nach Anspruch 1, dadurch ge- *~— - - kennzeichnet,—d-aß das -obere Mischwerkzeug-7. Misσhvorrichtung according to claim 1, characterized- * ~ - - - indicates —d-ate the upper mixing tool
(18) mit mindestens doppelt so hoher Drehzahl wie das untere Mischwerkzeug (12) antreibbar ist.(18) at least twice as high as the lower mixing tool (12) can be driven.
8. Mischvorrichtung nach Anspruch 1 , dadurch ge¬ kennzeichnet, daß das obere und untere Misch-8. Mixing device according to claim 1, characterized in that the upper and lower mixing
* Werkzeug (18 bzw. 12) durch gesonderte Motoren (16 bzw. 13) antreibbar sind.* Tools (18 or 12) can be driven by separate motors (16 or 13).
9. Mischvorrichtung nach Anspruch 1 , dadurch ge¬ kennzeichnet, daß das obere und untere Misch¬ werkzeug durch einen gemeinsamen Motor unter Zwischenschaltung einer vorzugsweise als Plane¬ tengetriebe ausgebildeten Getriebestufe an¬ treibbar sind.9. Mixing device according to claim 1, characterized in that the upper and lower mixing tools can be driven by a common motor with the interposition of a gear stage preferably designed as a planetary gear.
OMPI OMPI
PCT/EP1984/000009 1983-01-15 1984-01-13 Mixing device WO1984002679A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8484900504T DE3463013D1 (en) 1983-01-15 1984-01-13 Mixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833301207 DE3301207A1 (en) 1983-01-15 1983-01-15 MIXING DEVICE

Publications (1)

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WO1984002679A1 true WO1984002679A1 (en) 1984-07-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1984/000009 WO1984002679A1 (en) 1983-01-15 1984-01-13 Mixing device

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EP (1) EP0132263B1 (en)
DE (2) DE3301207A1 (en)
WO (1) WO1984002679A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3520039A1 (en) * 1985-06-04 1986-12-04 Herfeld, Friedrich Walter, Dr., 5982 Neuenrade Method and apparatus for the simultaneous mixing and heating of material
GB2211435B (en) * 1987-10-22 1991-11-20 Giusti & Son Limited T Improvements in or relating to a rotary mixing apparatus
DE4119033A1 (en) * 1991-06-10 1992-12-24 Thyssen Industrie COOLING MIXER FOR POWDER OR GRANULAR PLASTIC PLASTICS AND METHOD FOR OPERATING THE SAME
US5393141A (en) * 1991-06-10 1995-02-28 Thyssen Industrie Ag Method for operating cooling mixer for bulk material in powder and granular form

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3427344A1 (en) * 1984-07-25 1986-01-30 Alfa-Laval Agrar Gmbh, 2056 Glinde Method and apparatus for generating a pumpable mixture
DE3433693A1 (en) * 1984-09-13 1986-03-20 Herfeld, Friedrich Walter, Dr., 5982 Neuenrade Mixing device
DE3433674A1 (en) * 1984-09-13 1986-03-20 Friedrich Walter Dr. 5982 Neuenrade Herfeld MIXING DEVICE
DE3529185A1 (en) * 1985-01-25 1986-07-31 Herfeld, Friedrich Walter, Dr., 5982 Neuenrade MIXER
DE3831609A1 (en) * 1988-09-17 1990-03-22 Loedige Maschbau Gmbh Geb MACHINE FOR TREATING SCHUETTABEIG, PASTOESER AND / OR FLOWABLE GOETER WITH BUILT-IN LOCKING DEVICE
DE4217373C2 (en) * 1992-05-26 2003-02-20 Klaus Obermann Gmbh Device for the preparation and preparation of mixtures or suspensions containing at least one liquid component
US9458876B2 (en) 2013-08-28 2016-10-04 GM Global Technology Operations LLC Elastically deformable alignment fastener and system

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Publication number Priority date Publication date Assignee Title
FR1433800A (en) * 1964-07-04 1966-04-01 Henschel Werke Ag Method and device for simultaneously or separately performing a mixing operation with heating and a mixing operation with cooling
DE6601810U (en) * 1966-04-13 1969-03-27 Spangenberg Gustav METHOD AND DEVICE FOR HEATING THE MASS DURING THE PROCESSING OF THERMOPLASTICS WITH ADDITIVES.
DE7422965U (en) * 1975-08-21 Krauss Maffei Ag Device for converting plastic waste into granules
GB1432520A (en) * 1973-09-17 1976-04-22 Rheinstahl Ag Apparatus fur preparing pulverulent thermoplastic materias
EP0055872A2 (en) * 1981-01-07 1982-07-14 Friedrich Walter Dr. Herfeld Mixer for compositions of plastics material

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DE1216251B (en) * 1962-07-06 1966-05-12 Rheinstahl Henschel Ag Mechanical mixer
DE1217755B (en) * 1962-08-04 1966-05-26 Draiswerke Ges Mit Beschraenkt Grinding device
DE1244122B (en) * 1964-07-04 1967-07-13 Rheinstahl Henschel Ag Device for the simultaneous execution of a heated and a cooled mixing process

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7422965U (en) * 1975-08-21 Krauss Maffei Ag Device for converting plastic waste into granules
FR1433800A (en) * 1964-07-04 1966-04-01 Henschel Werke Ag Method and device for simultaneously or separately performing a mixing operation with heating and a mixing operation with cooling
DE6601810U (en) * 1966-04-13 1969-03-27 Spangenberg Gustav METHOD AND DEVICE FOR HEATING THE MASS DURING THE PROCESSING OF THERMOPLASTICS WITH ADDITIVES.
GB1432520A (en) * 1973-09-17 1976-04-22 Rheinstahl Ag Apparatus fur preparing pulverulent thermoplastic materias
EP0055872A2 (en) * 1981-01-07 1982-07-14 Friedrich Walter Dr. Herfeld Mixer for compositions of plastics material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3520039A1 (en) * 1985-06-04 1986-12-04 Herfeld, Friedrich Walter, Dr., 5982 Neuenrade Method and apparatus for the simultaneous mixing and heating of material
GB2211435B (en) * 1987-10-22 1991-11-20 Giusti & Son Limited T Improvements in or relating to a rotary mixing apparatus
DE4119033A1 (en) * 1991-06-10 1992-12-24 Thyssen Industrie COOLING MIXER FOR POWDER OR GRANULAR PLASTIC PLASTICS AND METHOD FOR OPERATING THE SAME
US5393141A (en) * 1991-06-10 1995-02-28 Thyssen Industrie Ag Method for operating cooling mixer for bulk material in powder and granular form

Also Published As

Publication number Publication date
EP0132263B1 (en) 1987-04-08
DE3301207A1 (en) 1984-07-19
DE3463013D1 (en) 1987-05-14
EP0132263A1 (en) 1985-01-30

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