EP0726091B1 - Loop mixer - Google Patents
Loop mixer Download PDFInfo
- Publication number
- EP0726091B1 EP0726091B1 EP96101712A EP96101712A EP0726091B1 EP 0726091 B1 EP0726091 B1 EP 0726091B1 EP 96101712 A EP96101712 A EP 96101712A EP 96101712 A EP96101712 A EP 96101712A EP 0726091 B1 EP0726091 B1 EP 0726091B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall
- mixer according
- loop
- product
- loop mixer
- 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
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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
- B01F27/05—Stirrers
- B01F27/09—Stirrers characterised by the mounting of the stirrers with respect to the receptacle
- B01F27/091—Stirrers characterised by the mounting of the stirrers with respect to the receptacle with elements co-operating with receptacle wall or bottom, e.g. for scraping the receptacle wall
-
- 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
- B01F27/92—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws
- B01F27/921—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws with helices centrally mounted in the receptacle
- B01F27/9211—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws with helices centrally mounted in the receptacle the helices being surrounded by a guiding tube
Definitions
- the invention relates to a loop mixer for mixing a Solids, especially fibers, containing a product cylindrical mixer housing that has an inlet and an outlet for the product and in the with a cylindrical guide tube a mixing loop is formed in which the product the interior of the guide tube via a radial opening in front of you front end of the guide tube in an annular cylindrical Outside of the guide tube deflected and transported back there in counterflow and from which the product is made on the outside arranged of the guide tube, which cross the radial opening Guides to the outlet, the transport of the Product a rotating displacer arranged inside the guide tube is.
- Loop mixers of this type are known as "dynamic loop mixers" known to the applicant and have been used for many years. They offer the advantage that the mixing process takes place without dead space can and an even mean lead time for the product - and thus an even mixing - through the accountings, which has a downstream entrance opening in the exterior have and the mixed product for regular on the the front-side outlet side opposite the inlet side transport, the guidance devices are required to the product at the radial opening and regardless of the product flow to be transported through the radial opening to the outlet. Accordingly, the guide devices in the radial Opening of product flows around in the mixing loop. Contains the product solids, especially fibers, these tend to accumulate on the outside of the control devices and so reduce the radial opening or clog it completely to let.
- a loop mixer at the beginning mentioned type characterized in that in Area of the radial opening radially in front of the guide devices a rotating scraper tool is arranged with a radial wall is provided with at least one wall section which is completed by an oblique edge so that the height the wall changes.
- the problem of clogging the loop mixer can be solved with the help of a simple rotating tool solve that is in the form of a cylindrical wall and with the oblique edge of the at least one wall section accumulated solids, especially fibers, to the side of the Guides pushes away so that the solids, especially Fibers, from the one flowing through the free cross-section of the radial opening Product flow can be recorded and taken along, so properly remain in the product circulating in the mixing loop.
- the wall section is triangular formed with a sawtooth shape, ie a triangle with a long flat slope and a short steep slope, especially is preferred.
- the maximum height of the wall section is approximately corresponds to the greatest height of the radial opening.
- the stripping tool is with the at least one wall section in a pot shape formed a bottom, the bottom of the stripping tool as the end of the guide tube is arranged.
- the rotational speed of the rotating stripping tool is not critical.
- the stripping tool can therefore be easily have a common drive with the rotating displacer.
- the rotating displacer is expediently a screw conveyor, so that the stripping tool is preferably on the drive shaft Screw conveyor is attached.
- the inner wall of the guide tube axially preventing the product from rotating with the displacer has extended paragraphs.
- the inner wall can be made from each other eccentrically arranged cylindrical wall sections formed between which the paragraphs are formed.
- Figure 1 shows a mixer housing 1, which is substantially cylindrical is formed and on an end face an inlet 2 for the product to be mixed and on the other face has an outlet 3 for the mixed product.
- a guide tube 4 Coaxial with the mixer housing 1 there is a guide tube 4, whose length is shorter than the length of the mixer housing 1 in cylindrical part, so that radial openings 5, 6 on both Ends of the guide tube 4 arise through which the product from the Inside the guide tube 4 in a between the guide tube 4 and Mixer housing 1 formed cylindrical outer space 7 and vice versa can reach.
- a rotating drive shaft is in the axis of symmetry of the guide tube 4 8 a screw conveyor 9 is arranged.
- the guide tube 4 essentially filling screw 9 transports the product from the input end of the guide tube 4 to the output side End where the product is redirected into the cylindrical outer space 7 and in counterflow to the inlet end of the guide tube is conveyed back to then through the inlet 2 to mix in the new product.
- the amount of processed product emerging through outlet 3 corresponds the amount of product pressed into the mixer through inlet 2.
- Arrows P illustrate the product circulation in the through the interior and the annular cylindrical outer space 7 of the guide tube 4 is formed Mixing loop and the feeding of the product through the inlet 2 and the exit of product through the pipe sections 10 in the Outlet 3.
- the cup-shaped with a Bottom 14 and a radial wall 15 is formed in the area of the radial through opening 5 rotating stripping tool 13 arranged.
- the radial wall 15 rotates immediately in front of the radially inner end of the one Common radius arranged, serving as guidance devices Pipe pieces 10.
- the bottom 14 forms a front end in Extension of the guide tube 4 and at a distance from its outlet side End edge 16.
- the radial wall 15 is formed with two wall sections 17 which are provided with an oblique edge 18.
- the scraper tool 13 has the rotary shaft 8 connected, so rotates together with the screw conveyor 9. Due to the direction of rotation R, the product with the help of oblique edge 18 laterally pushed away from the tube pieces 10. By doing Solids contained in the product are therefore in the free area between promoted the pipe sections 10 and pass through the free area the radial opening 5 with that generated by the screw conveyor 9 Product flow into the ring-cylindrical outer space 7.
- a collection of solids or fibers on the inflow side the pipe sections 10 functioning as guide devices therefore become effective avoided.
- Figure 3 illustrates that the guide tube 4 is not a uniformly cylindrical Has inner wall 20, but that the inner wall 20 from there are four cylindrical sections 21 which are eccentric to each other are arranged and therefore form axially aligned shoulders 22. This arrangement prevents material on the one hand with the rotation in the direction R of the screw 9, which rotates the would prevent the desired transport effect in the axial direction, on the other hand, clogging of any grooves, circular openings or similar avoided.
- Figure 4 illustrates in another embodiment of the wall of the Guide tube 4 that the outer wall according to the design of the Inner wall 20 can be graded if this is from manufacturing Reasons seems appropriate.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Description
Die Erfindung betrifft einen Schlaufenmischer zur Mischung eines Feststoffe, insbesondere Fasern, enthaltenden Produktes mit einem zylindrischen Mischergehäuse, das einen Einlaß und einen Auslaß für das Produkt aufweist und in dem mit einem zylindrischen Leitrohr eine Mischschlaufe ausgebildet ist, in der das Produkt aus dem Inneren des Leitrohres über eine radiale Öffnung vor einem stirnseitigen Abschluß des Leitrohres in einen ringzylindrischen Außenraum des Leitrohres umgelenkt und dort im Gegenstrom zurücktransportiert wird und aus der das Produkt mittels an der Außenseite des Leitrohres angeordnete, die radiale Öffnung querenden Leiteinrichtungen zum Auslaß gelangt, wobei zum Transport des Produktes ein rotierender Verdränger im Innern des Leitrohres angeordnet ist.The invention relates to a loop mixer for mixing a Solids, especially fibers, containing a product cylindrical mixer housing that has an inlet and an outlet for the product and in the with a cylindrical guide tube a mixing loop is formed in which the product the interior of the guide tube via a radial opening in front of you front end of the guide tube in an annular cylindrical Outside of the guide tube deflected and transported back there in counterflow and from which the product is made on the outside arranged of the guide tube, which cross the radial opening Guides to the outlet, the transport of the Product a rotating displacer arranged inside the guide tube is.
Derartige Schlaufenmischer sind als "dynamische Schlaufenmischer" der Anmelderin bekannt und werden seit vielen Jahren verwendet. Sie bieten den Vorteil, daß der Mischvorgang totraumfrei erfolgen kann und eine gleichmäßige mittlere Durchlaufzeit für das Produkt - und somit eine gleichmäßige Durchmischung - durch die kontungen, die im Außenraum eine stromabwärts gerichtete Eintrittsöffnung aufweisen und das gemischte Produkt zum regelmäßig auf der der Einlaßseite gegenüberliegenden stirnseitigen Auslaßseite transportieren, wobei die Leiteinrichtungen erforderlich sind, um das Produkt an der radialen Öffnung und unabhängig von der Produktströmung durch die radiale Öffnung zum Auslaß zu transportieren. Demgemäß werden die Leiteinrichtungen im Bereich der radialen Öffnung von Produkt innerhalb der Mischschlaufe umströmt. Enthält das Produkt Feststoffe, insbesondere Fasern, neigen diese dazu, sich an den Außenseiten der Leiteinrichtungen anzusammeln und so die radiale Öffnung zu verkleinern bzw. vollständig verstopfen zu lassen.Loop mixers of this type are known as "dynamic loop mixers" known to the applicant and have been used for many years. They offer the advantage that the mixing process takes place without dead space can and an even mean lead time for the product - and thus an even mixing - through the accountings, which has a downstream entrance opening in the exterior have and the mixed product for regular on the the front-side outlet side opposite the inlet side transport, the guidance devices are required to the product at the radial opening and regardless of the product flow to be transported through the radial opening to the outlet. Accordingly, the guide devices in the radial Opening of product flows around in the mixing loop. Contains the product solids, especially fibers, these tend to accumulate on the outside of the control devices and so reduce the radial opening or clog it completely to let.
Für besonders kritische faserhaltige Produkte muß nach einer Laufzeit von wenigen Stunden eine Reinigung vorgenommen werden. Hierdurch wird die Effizienz des Einsatzes des Schlaufenmischers herabgesetzt, da insbesondere bei der Verarbeitung von Lebensmitteln nach der Reinigung ein keimfreier Zustand im Schlaufenmischer wieder hergestellt werden muß.For particularly critical fiber-containing products, after a period of time can be cleaned within a few hours. Hereby the efficiency of using the loop mixer is reduced, because especially when processing food after cleaning, a sterile condition in the loop mixer again must be manufactured.
Ausgehend von der Problemstellung, die Effizienz eines derartigen Schlaufenmischers zu erhöhen, ist ein Schlaufenmischer der eingangs erwähnten Art erfindungsgemäß dadurch gekennzeichnet, daß im Bereich der radialen Öffnung radial innen vor den Leiteinrichtungen ein rotierendes Abstreifwerkzeug angeordnet ist, das mit einer radialen Wand mit wenigstens einem Wandabschnitt versehen ist, der durch eine schräge Kante so abgeschlossen ist, daß sich die Höhe der Wand ändert.Based on the problem, the efficiency of such To increase the loop mixer is a loop mixer at the beginning mentioned type according to the invention characterized in that in Area of the radial opening radially in front of the guide devices a rotating scraper tool is arranged with a radial wall is provided with at least one wall section which is completed by an oblique edge so that the height the wall changes.
Erfindungsgemäß läßt sich das Problem des Zusetzens des Schlaufenmischers somit mit Hilfe eines einfachen rotierenden Werkzeuges lösen, das in Form einer zylindrischen Wand ausgebildet ist und mit der schrägen Kante des wenigstens einen Wandabschnittes die angesammelten Feststoffe, insbesondere Fasern, seitlich von den Leiteinrichtungen wegdrückt, so daß die Feststoffe, insbesondere Fasern, vom durch den freien Querschnitt der radialen Öffnung strömenden Produktstrom erfaßt und mitgenommen werden, also ordnungsgemäß in dem in der Mischschlaufe umlaufenden Produkt verbleiben. According to the invention, the problem of clogging the loop mixer can be solved with the help of a simple rotating tool solve that is in the form of a cylindrical wall and with the oblique edge of the at least one wall section accumulated solids, especially fibers, to the side of the Guides pushes away so that the solids, especially Fibers, from the one flowing through the free cross-section of the radial opening Product flow can be recorded and taken along, so properly remain in the product circulating in the mixing loop.
Es hat sich gezeigt, daß mit einem erfindungsgemäß ausgebildeten und angeordneten Abstreifwerkzeug die Reinigungsintervalle für den Schlaufenmischer von wenigen Stunden auf mehrere Tage, also auf normale Reinigungsintervalle für Schlaufenmischer für nicht verstopfende Produkte, verlängert werden konnte.It has been shown that with an inventive and arranged scraper the cleaning intervals for the Loop mixer from a few hours to several days, i.e. to normal ones Cleaning intervals for loop mixers for non-clogging Products that could be extended.
In einer bevorzugten Ausführungsform ist der Wandabschnitt dreieckförmig ausgebildet, wobei eine Sägezahnform, also ein Dreieck mit einer langen flachen Schräge und einer kurzen steilen Schräge, besonders bevorzugt ist.In a preferred embodiment, the wall section is triangular formed with a sawtooth shape, ie a triangle with a long flat slope and a short steep slope, especially is preferred.
Zweckmäßig ist es, wenn die maximale Höhe des Wandabschnittes etwa der größten Höhe der radialen Öffnung entspricht.It is useful if the maximum height of the wall section is approximately corresponds to the greatest height of the radial opening.
In einer in der praktischen Erprobung bewährten Ausführungsform ist die radiale Wand des Abstreifwerkzeuges mit zwei Wandabschnitten versehen.In an embodiment that has proven itself in practical testing provide the radial wall of the stripping tool with two wall sections.
In einer konstruktiv sehr zweckmäßigen Ausführungsform ist das Abstreifwerkzeug mit dem wenigstens einem Wandabschnitt topfförmig mit einem Boden ausgebildet, wobei der Boden des Abstreifwerkzeuges als stirnseitiger Abschluß des Leitrohres angeordnet ist.In a structurally very expedient embodiment, the stripping tool is with the at least one wall section in a pot shape formed a bottom, the bottom of the stripping tool as the end of the guide tube is arranged.
Die Umdrehungsgeschwindigkeit des rotierenden Abstreifwerkzeuges ist nicht kritisch. Das Abstreifwerkzeug kann daher in einfacher Weise einen gemeinsamen Antrieb mit dem rotierenden Verdränger aufweisen.The rotational speed of the rotating stripping tool is not critical. The stripping tool can therefore be easily have a common drive with the rotating displacer.
Der rotierende Verdränger ist zweckmäßigerweise eine Förderschnecke, so daß das Abstreifwerkzeug vorzugsweise an der Antriebswelle der Förderschnecke befestigt ist.The rotating displacer is expediently a screw conveyor, so that the stripping tool is preferably on the drive shaft Screw conveyor is attached.
Da das Produkt ab einer bestimmten Viskosität dazu neigt, sich mit dem rotierenden Verdränger mitzudrehen und somit nicht mehr vorgefördert zu werden, ist es zweckmäßig, wenn die Innenwandung des Leitrohres ein Mitdrehen des Produktes mit dem Verdränger verhindernde axial erstreckte Absätze aufweist. Hierzu kann die Innenwandung aus zueinander exzentrisch angeordneten zylindrischen Wandabschnitten gebildet sein, zwischen denen die Absätze ausgebildet sind. As of a certain viscosity the product tends to deal with rotate with the rotating displacer and therefore no longer advanced to become, it is useful if the inner wall of the guide tube axially preventing the product from rotating with the displacer has extended paragraphs. For this purpose, the inner wall can be made from each other eccentrically arranged cylindrical wall sections formed between which the paragraphs are formed.
Die Erfindung wird im folgenden anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert. Es zeigen:
- Figur 1 -
- einen Längsschnitt durch einen erfindungsgemäßen Schlaufenmischer
- Figur 2 -
- eine Abwicklung der Mantelwand des Abstreifwerkzeuges
- Figur 3 -
- einen Horizontalschnitt durch ein Ausführungsbeispiel eines Leitrohres entlang der Linie A-A in Figur 1
- Figur 4 -
- einen Schnitt gemäß
Figur 3 durch eine andere Ausführungsform eines Leitrohres.
- Figure 1 -
- a longitudinal section through a loop mixer according to the invention
- Figure 2 -
- a development of the jacket wall of the stripping tool
- Figure 3 -
- a horizontal section through an embodiment of a guide tube along the line AA in Figure 1
- Figure 4 -
- a section according to Figure 3 through another embodiment of a guide tube.
Figur 1 läßt ein Mischergehäuse 1 erkennen, das im wesentlichen zylindrisch
ausgebildet ist und auf einer Stirnseite einen Einlaß 2 für
das zu mischende Produkt und auf der anderen Stirnseite
einen Auslaß 3 für das gemischte Produkt aufweist.Figure 1 shows a mixer housing 1, which is substantially cylindrical
is formed and on an end face an
Koaxial mit dem Mischergehäuse 1 befindet sich in diesem ein Leitrohr
4, dessen Länge kürzer ist als die Länge des Mischergehäuses 1 im
zylindrischen Teil, so daß radiale Durchtrittsöffnungen 5, 6 an beiden
Enden des Leitrohres 4 entstehen, durch die das Produkt aus dem
Innern des Leitrohres 4 in einen zwischen Leitrohr 4 und
Mischergehäuse 1 gebildeten ringzylindrischen Außenraum 7 und umgekehrt
gelangen kann.Coaxial with the mixer housing 1 there is a
In der Symmetrieachse des Leitrohres 4 ist eine rotierende Antriebswelle
8 einer Förderschnecke 9 angeordnet. Die das Leitrohr 4
im wesentlichen ausfüllende Förderschnecke 9 transportiert das Produkt
vom eingangsseitigen Ende des Leitrohres 4 zum ausgangsseitigen
Ende, wo das Produkt in den ringzylindrischen Außenraum 7 umgelenkt
und im Gegenstrom zum eingangsseitigen Ende des Leitrohres
zurückgefördert wird, um sich dann mit dem durch den Einlaß 2
eingetretenen neuen Produkt zu vermischen. A rotating drive shaft is in the axis of symmetry of the
Am ausgangsseitigen Ende des Leitrohres 4 sind an diesem vier
gleichmäßig über dessen Umfang verteilte Rohrstücke 10 angeordnet,
die in einen gemeinsamen Auslaßraum 11 münden, der sich konisch zum
Anschlußflansch 12 des Auslasses 3 verjüngt.At the output end of the
Die durch den Auslaß 3 austretende, bearbeitete Produktmenge entspricht
der durch den Einlaß 2 in den Mischer eingedrückten Produktmenge.
Pfeile P verdeutlichen den Produktumlauf in der durch den Innenraum
und den ringzylindrischen Außenraum 7 des Leitrohres 4 gebildeten
Mischschlaufe sowie die Zuführung des Produktes durch den Einlaß
2 und den Austritt von Produkt durch die Rohrstücke 10 in den
Auslaß 3.The amount of processed product emerging through
Im Bereich der radialen Durchgangsöffnung 5 ist erfindungsgemäß ein
rotierendes Abstreifwerkzeug 13 angeordnet, das topfförmig mit einem
Boden 14 und einer radialen Wand 15 ausgebildet ist. Die radiale Wand
15 rotiert dabei unmittelbar vor dem radial inneren Ende der auf einem
gemeinsamen Radius angeordneten, als Leiteinrichtungen dienenden
Rohrstücke 10. Der Boden 14 bildet einen stirnseitigen Abschluß in
Verlängerung des Leitrohres 4 und mit Abstand von dessen ausgangsseitiger
Endkante 16.According to the invention, in the area of the radial through opening 5
rotating
Die radiale Wand 15 ist mit zwei Wandabschnitten 17 ausgebildet, die
mit einer schrägen Kante 18 versehen sind.The
Wie insbesondere die in Figur 2 dargestellte Abwicklung verdeutlicht,
führt die schräge Kante 18 von einer geringen Höhe H1 zu einer größeren
Höhe H2. Eine steiler verlaufende schräge Kante 19 führt auf die
ursprüngliche Höhe H1 zurück.As is particularly clear from the processing shown in FIG. 2,
leads the
Wie Figur 1 verdeutlicht, ist das Abstreifwerkzeug 13 mit der Rotationswelle
8 verbunden, rotiert also zusammen mit der Förderschnecke
9. Aufgrund der Rotationsrichtung R wird das Produkt mit Hilfe der
schrägen Kante 18 seitlich von den Rohrstücken 10 weggedrückt. In dem
Produkt enthaltene Feststoffe werden daher in den freien Bereich zwischen
den Rohrstücken 10 gefördert und gelangen durch den freien Bereich
der radialen Öffnung 5 mit dem von der Förderschnecke 9 erzeugten
Produktstrom in den ringzylindrischen Außenraum 7. As illustrated in FIG. 1, the
Eine Ansammlung von Feststoffen bzw. Fasern an der angeströmten Seite
der als Leiteinrichtungen fungierenden Rohrstücke 10 wird daher wirksam
vermieden.A collection of solids or fibers on the inflow side
the
Figur 3 verdeutlicht, daß das Leitrohr 4 eine nicht gleichmäßig zylindrische
Innenwand 20 aufweist, sondern daß die Innenwand 20 aus
vier zylindrischen Abschnitten 21 besteht, die exzentrisch zueinander
angeordnet sind und daher axial ausgerichtete Absätze 22 bilden.
Durch diese Anordnung wird einerseits verhindert, daß sich Material
mit der Rotation in Richtung R der Förderschnecke 9 mitdreht, was den
angestrebten Transporteffekt in axialer Richtung unterbinden würde,
andererseits wird ein Zusetzen von etwaigen Nuten, kreisförmigen Öffnungen
o.ä. vermieden.Figure 3 illustrates that the
Figur 4 verdeutlicht in einer anderen Ausführungsform der Wand des
Leitrohres 4, daß auch die Außenwand entsprechend der Ausbildung der
Innenwand 20 abgestuft sein kann, wenn dies aus fertigungstechnischen
Gründen zweckmäßig erscheint.Figure 4 illustrates in another embodiment of the wall of the
Claims (12)
- Loop mixer for mixing a product containing solids, in particular fibres, the said mixer having a cylindrical mixer casing (1) which has an inlet (2) and an outlet (3) for the product and in which there is constructed, with the aid of a cylindrical conducting tube (4), a mixing loop in which the product is guided round from the interior of the conducting tube (4), via a radial aperture (5) in front of an end-face closure (14) of the said conducting tube, into an annularly cylindrical outer compartment (7) of the conducting tube (4) and is there transported back in countercurrent, and from which the product arrives at the outlet (3) by means of conducting arrangements (10) which are disposed on the outside of the conducting tube (4) and cross the radial aperture (5), a rotating displacer (9) being disposed in the interior of the conducting tube (4) for the purpose of transporting the product, characterised in that there is disposed in the region of the radial aperture (5), radially on the inside in front of the conducting arrangements (10), an axially rotating stripping tool (13) which is provided with a radial wall (15) having at least one wall section (17) which is closed off by an oblique edge (18) in such a way that the height of the wall (15) varies.
- Loop mixer according to claim 1, characterised in that the wall section (17) is of triangular construction.
- Loop mixer according to claim 2, characterised in that the wall section (17) is of saw-tooth-shaped construction.
- Loop mixer according to one of claims 1 to 3,
characterised in that the maximum height (H2) of the wall section (17) approximately corresponds to the greatest height of the radial aperture (5). - Loop mixer according to one of claims 1 to 4,
characterised in that the radial wall (15) of the stripping tool (13) has two wall sections (17). - Loop mixer according to one of claims 1 to 5,
characterised in that the stripping tool (13) having the wall section (17), of which there is at least one, is of pot-shaped construction with a base (14) and that the base (14) is disposed as the end-face closure of the conducting tube (4). - Loop mixer according to one of claims 1 to 6,
characterised by a common rotational drive (8) for the displacer (9) and the stripping tool (13). - Loop mixer according to one of claims 1 to 7,
characterised in that the displacer is a conveyer worm (9). - Loop mixer according to claims 7 and 8, characterised in that the stripping tool (13) is fastened to a drive shaft (8) belonging to the conveyer worm (9).
- Loop mixer according to one of claims 1 to 9,
characterised in that the inner wall (20) of the conducting tube (4) has axially extended offsets (22) which prevent co-rotation of the product with the rotating displacer (9). - Loop mixer according to claim 10, characterised in that the inner wall (20) is formed from cylindrical wall sections (21) which are disposed eccentrically in relation to one another and between which the offsets (22) are constructed.
- Loop mixer according to one of claims 1 to 11,
characterised in that the conducting arrangements (10) are tubular pieces.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19504272A DE19504272C2 (en) | 1995-02-09 | 1995-02-09 | Loop mixer |
| DE19504272 | 1995-02-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0726091A1 EP0726091A1 (en) | 1996-08-14 |
| EP0726091B1 true EP0726091B1 (en) | 2000-05-03 |
Family
ID=7753551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96101712A Expired - Lifetime EP0726091B1 (en) | 1995-02-09 | 1996-02-07 | Loop mixer |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0726091B1 (en) |
| DE (2) | DE19504272C2 (en) |
| ES (1) | ES2150606T3 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008009647B4 (en) * | 2008-02-18 | 2011-04-14 | Christian Dr. Koch | Sludge reactor pump for simultaneous transport of solids, liquids, vapors and gases |
| CN109012350A (en) * | 2018-07-20 | 2018-12-18 | 广东鑫皇冠新材料有限公司 | A kind of powdery paints blender with cleaning device |
| CN109126549A (en) * | 2018-07-20 | 2019-01-04 | 广东鑫皇冠新材料有限公司 | A kind of powdery paints blender of automated cleaning |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1298117A (en) * | 1970-07-30 | 1972-11-29 | Gardeners Of Gloucester Ltd | Improvements in or relating to mixing means |
| US4132666A (en) * | 1975-10-09 | 1979-01-02 | Japan Synthetic Rubber Company, Limited | Process for preparing alkali metal dispersions |
| DE9016076U1 (en) * | 1990-11-26 | 1991-02-21 | Kraft General Foods Europe R & D, Inc. Zweigniederlassung München (eine Zweigniederlassung der Kraft R & D, Inc., Wilmington, Delaware/USA), 8000 München | Device for producing an aseptic mixture of liquid or pasty mass with solid particles |
-
1995
- 1995-02-09 DE DE19504272A patent/DE19504272C2/en not_active Expired - Fee Related
-
1996
- 1996-02-07 ES ES96101712T patent/ES2150606T3/en not_active Expired - Lifetime
- 1996-02-07 DE DE59605080T patent/DE59605080D1/en not_active Expired - Lifetime
- 1996-02-07 EP EP96101712A patent/EP0726091B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE19504272A1 (en) | 1996-08-22 |
| EP0726091A1 (en) | 1996-08-14 |
| DE59605080D1 (en) | 2000-06-08 |
| ES2150606T3 (en) | 2000-12-01 |
| DE19504272C2 (en) | 1997-10-23 |
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