DE1557027C

DE1557027C - Device for the continuous dispersion and homogenization of predominantly viscous substances

Info

Publication number: DE1557027C
Authority: DE
Inventors: Auf Nichtnennung Antrag
Original assignee: Buhner, Willy, 2800 Bremen
Publication date: 1971-05-27

Description

Das Hauptpatent betrifft eine Vorrichtung zum kontinuierlichen Dispergieren und Homogenisieren von vorwiegend viskosen Stollen. Die Vorrichtung besteht aus einer Mischkammer mit darin umlaufendem Flügelrührer, die mit in den Rotationsbereich des Rührers mündenden Zuführleitungen für die Ausgangsstoffe und einem Abführrohr für das Dispersionsprodukt versehen ist, wobei die Mündungsöffnungen der Zuführrohre etwa senkrecht auf die wirksamsten Kanten mindestens eines hochtourig umlaufenden Flügelrührers gerichtet sind, während die Mischkammer aus zwei Teilen besteht, und zwar aus einer in bezug auf den Durchmesser des Rührers erweiterten Rotorkammer und aus einer zwischen dieser und dem Abführrohr angeordneten Beruhigungskammer, die gegenüber der Rotorkammer einen kleineren Durchmesser aufweist.The main patent relates to a device for continuous dispersion and homogenization of predominantly viscous cleats. The device consists of a mixing chamber with a rotating Blade stirrer with feed lines for the starting materials which open into the rotation area of the stirrer and a discharge pipe for the dispersion product is provided, the orifice openings of the feed pipes approximately perpendicular to the most effective edges of at least one high-speed revolving Blade stirrer are directed, while the mixing chamber consists of two parts, namely from one with respect to the diameter of the stirrer enlarged rotor chamber and one between them and the discharge pipe arranged calming chamber, which is smaller than the rotor chamber Has diameter.

Ziel der Erfindung ist es, die Dispergier- und die Homogenisierwirkung sowie den Mahl- bzw. Zerteilvorgang der Ausgangsstoffe wesentlich zu erhöhen. Hierzu ist erfindungsgemäß die Vorrichtung zum kontinuierlichen Dispergieren und Homogenisieren von vorwiegend viskosen Stoffen in der Weise ausgebildet, daß in der Rotorkammer ein Scheibenrührer angeordnet ist und daß die Innenwandung der Rotorkammer mit Profilierungen versehen ist.
Vorteilhaft weist der Scheibenrührer drei im Abstand voneinander angeordnete Scheiben auf, von denen die mittlere Scheibe gegenüber den beiden anderen Scheiben mit einem größeren Durchmesser versehen ist. Die mittlere der drei Scheiben kann als Wellenscheibe ausgebildet bzw. an ihrem Umfang mit Profilierungen versehen sein.The aim of the invention is to significantly increase the dispersing and homogenizing effects as well as the grinding or dividing process of the starting materials. For this purpose, according to the invention, the device for the continuous dispersion and homogenization of predominantly viscous substances is designed in such a way that a disk stirrer is arranged in the rotor chamber and that the inner wall of the rotor chamber is provided with profiles.
The disk stirrer advantageously has three disks arranged at a distance from one another, of which the middle disk is provided with a larger diameter than the other two disks. The middle of the three disks can be designed as a wave washer or provided with profiles on its circumference.

Nach einem weiteren Merkmal der Erfindung ist die Innenwandung der Rotorkammer im Bereich der Scheiben mit Ringnuten versehen, deren Anzahl der Anzahl der verwendeten Scheiben entspricht; der Durchmesser der Scheiben ist etwas geringer bemessen als der Durchmesser der Ringnuten.According to a further feature of the invention, the inner wall of the rotor chamber is in the area of Provided disks with annular grooves, the number of which corresponds to the number of disks used; the The diameter of the disks is slightly smaller than the diameter of the annular grooves.

Ferner können an der Innenwandung der Rotoikammer wulstartige Profilierungen angeformt sein.Furthermore, bead-like profiles can be formed on the inner wall of the rotary chamber.

Die Beruhigungskammer und die Rotorkammer weisen nach einem weiteren Merkmal der Erfindung gleiche Innendurchmesser auf. Es sind dann zwei Scheibenrührer vorgesehen, die mit ihren Achsen fluchtend einander gegenüberliegend angeordnet sind. Die beiden Scheiben laufen in einer Ringnut um.The calming chamber and the rotor chamber have a further feature of the invention same inside diameter. There are then two disc stirrers provided with their axes are arranged in alignment opposite one another. The two disks revolve in an annular groove.

In der Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt, und zwar zeigtIn the drawing, the subject matter of the invention is shown, for example, namely shows

F i g. 1 eine Mischkammer mit einem Scheibenrührer mit Scheiben, teils in Ansicht, teils im Schnitt,F i g. 1 a mixing chamber with a disk stirrer with disks, partly in view, partly in section,

F i g. 2 einen mit aus der Scheibenebene herausstehenden Schneidkanten versehenen Scheibenrührer in einer Ansicht von oben,F i g. 2 one with protruding from the plane of the disk Disc stirrer with cutting edges in a view from above,

F i Ji. 3 einen senkrechten Schnitt gemäß Linie Ill-Hi in Fig. 2,F i Ji. 3 shows a vertical section along the line III-Hi in Fig. 2,

Fig. 4 eine aus mehreren ringförmigen Elementen bestehende Rotorkammer, deren inncnwandung mit Ringnuten für in diesen umlaufenden Scheiben versehen ist, teils in Ansicht, teils im Schnitt,4 shows one of several annular elements existing rotor chamber, the inner wall of which is provided with annular grooves for disks rotating in these is, partly in view, partly in section,

Fig. 5 ein ringförmiges Rotorkammerelement in einem senkrechten Schnitt,5 shows an annular rotor chamber element in a vertical section,

F i g. 6 eine weitere Ausführungsform der Mischkammer mit /wui Scheibenrührern undF i g. 6 shows another embodiment of the mixing chamber with / wui disk stirrers and

!•'ig. 7 eine Mischkammer mit zwei Scheibenrührcrn mit einander gcgenüberlicgonden Achsen, teils in Ansicht, teils im Schnitt.! • 'ig. 7 a mixing chamber with two disk stirrers with opposite axes, partly in view, partly in section.

Nach einer bevorzugten Ausfülirimgsform gemäß F i g. 1 besteht die Mischkammer 10 aus einer Rotorkammer 11 und einer oberen Beruhigungskammer 12, an die ein Abführrohr 13 angeschlossen ist. Die Mischkammer 10 besteht vorzugsweise aus korrosionsbeständigen Werkstoffen. Die Beruhigungskammer 12 ist als Schauglas ausgebildet, das in einem oberen Ring 14. gehalten ist, der mittels Verbindungsstäben 15 auf der erweiterten Rotorkammer 11 befestigt ist. Ist die Mischkammer 10 aus undurchsichtigen Werkstoffen gefertigt, dann können in der Wandung der Beruhigungskammer 12 und/oder in der Wandung der Rotorkammer 11 Schaugläser vorgesehen sein. Die Rotorkammer 11 weist ein Fassungsvermögen von etwa 300 Kubikzentimetern auf. In der Rotorkammer 11 ist ein Rührer 20 angeordnet, der aus einer mit einem Antriebsmotor 22 in Verbindung stehenden senkrechten Achse 21 mit drei im Abstand voneinander angeordneten Scheiben 101, 102, 103 besteht. Die Drehzahl des Antriebsmotors 22 ist im Bereich von 1 bis 50 000 Touren stufenlos einstellbar. ■ .According to a preferred embodiment according to F i g. 1 the mixing chamber 10 consists of a rotor chamber 11 and an upper calming chamber 12, to which a discharge pipe 13 is connected. The mixing chamber 10 is preferably made of corrosion-resistant Materials. The calming chamber 12 is designed as a sight glass that is in one upper ring 14 is held, which is attached to the enlarged rotor chamber 11 by means of connecting rods 15 is. If the mixing chamber 10 is made of opaque materials, then in the wall the calming chamber 12 and / or in the wall of the rotor chamber 11 sight glasses are provided being. The rotor chamber 11 has a capacity of about 300 cubic centimeters. In the In the rotor chamber 11, a stirrer 20 is arranged, which consists of a stirrer connected to a drive motor 22 standing vertical axis 21 with three disks 101, 102, 103 arranged at a distance from one another consists. The speed of the drive motor 22 is continuously adjustable in the range from 1 to 50,000 tours. ■.

Die Rotorkammer 11 weist Zuführrohre 30, 31 auf. Die Anzahl der Zuführrohre richtet sich nach der Anzahl der Ausgangskomponenten, die dem Fertigprodukt zugrunde gelegt werden. Die freien Enden der in den Behälterinnenraum hineinreichenden Zuführrohre 30, 31 sind vorzugsweise düsenförmig ausgebildet. Die Zuführrohre stehen unter Zwischenschaltung von in der Zeichnung nicht dargestellten Dosierpumpen mit den Vorratsbehältern für die Ausgangsstoffe in Verbindung.The rotor chamber 11 has feed pipes 30, 31. The number of feed tubes depends on the Number of starting components on which the finished product is based. The free ends the feed pipes 30, 31 reaching into the interior of the container are preferably designed in the shape of a nozzle. The feed pipes are interposed with not shown in the drawing Dosing pumps in connection with the storage containers for the raw materials.

Die Scheiben 101, 102, 103 des Rührers 20 können alle den gleichen Durchmesser aufweisen. Vorzugsweise sind die Scheiben 101 und 103 in ihren Durchmessern gegenüber der mittleren Scheibe 102 geringer bemessen, so daß der Abstand des umlaufenden Randes der Scheiben 101, 103 von der Innenwandung der Rotorkammer 11 größer ist als der Abstand des umlaufenden Randes der Scheibe 102. Die Scheibe 102 ist als Wellenscheibe ausgebildet. Der umlaufende Rand der Scheibe 102 kann auch ein Wellenprofil oder ein sägezahnartiges Profil aufweisen.The disks 101, 102, 103 of the stirrer 20 can all have the same diameter. Preferably the disks 101 and 103 are smaller in their diameters compared to the middle disk 102 dimensioned so that the distance between the circumferential edge of the disks 101, 103 from the inner wall the rotor chamber 11 is greater than the distance between the circumferential edge of the disk 102. The disk 102 is designed as a wave washer. The circumferential edge of the disk 102 can also have a wave profile or have a sawtooth-like profile.

Gemäß Fig. 2 ist die Scheibe 102 mit vier radial vom äußeren Umfang zum Scheibenmittelpunkt verlaufenden und den gleichen Abstand voneinander aufweisenden schlitzförmigen Einschnitten 104, 105, 106, 107 versehen. Die den Einschnitten 104, 105, 106, 107 benachbarten Scheibenabschnitte 108, 109, 110, 111 sind aus der Scheibenebene nach unten abgebogen (F i g. 3). Die Längskanten 112 der abgebogenen Scheibenabschnitte 108, 109, 110, 111 sind als Schneidkanten ausgebildet. Die Scheibenabschnitte 108, 109, 110, 111 mit den Schneidkanten 112 sind jedoch alle gleichsinnig aus der Scheibenebene herausgebogen, und zwar derart, daß die Schneidkanten 112 in Umlaufrichtung der Scheibe 102, die durch den Pfeil X angedeutet ist, das zu bearbeitende Gut beaufschlagen. Die Scheiben 101 und 103 können entsprechend der Scheibe 102 ausgebildet sein.According to FIG. 2, the disk 102 is provided with four slot-shaped incisions 104, 105, 106, 107 which run radially from the outer circumference to the center of the disk and are equidistant from one another. The disk sections 108, 109, 110, 111 adjacent to the incisions 104, 105, 106, 107 are bent downward from the plane of the disk (FIG. 3). The longitudinal edges 112 of the bent disk sections 108, 109, 110, 111 are designed as cutting edges. The disc sections 108, 109, 110, 111 with the cutting edges 112, however, are all bent out of the plane of the disc in the same direction, in such a way that the cutting edges 112 act on the material to be processed in the direction of rotation of the disc 102, which is indicated by the arrow X. The disks 101 and 103 can be designed corresponding to the disk 102.

Bei der in Fig. 4 dargestellten Ausführungsform sind in der Innenwandung der Rotorkammer 11 im Bereich der Scheiben 101a, 102 α, 103 α ringförmige Nuten 112, 113, 114 vorgesehen. Der Durchmesser der Scheiben 10La, 102a, 103a ist etwas geringer bemessen als der Durchmesser der Ringnuten 112, 113, 114, so daß der Durchmesser der Scheiben 101«, 102a, 103a größer bemessen ist als der Innendurchmesser der Rotorkammer 11. Die Anzahl der Ring-In the embodiment shown in FIG are annular in the inner wall of the rotor chamber 11 in the area of the disks 101a, 102 α, 103 α Grooves 112, 113, 114 are provided. The diameter of the disks 10La, 102a, 103a is dimensioned somewhat smaller than the diameter of the annular grooves 112, 113, 114, so that the diameter of the disks 101 «, 102a, 103a is larger than the inner diameter of the rotor chamber 11. The number of ring

Claims

3 43 4

grooves corresponds to the number of diameters used in each case. In the mixing chamber 10 there are two disks attached to the drive shaft 21. Disk stirrer 101 b, 102 b with vertical drive - In order to be able to vary the number of disks, axes 21, 21 α are arranged opposite one another. The rotor chamber 11 consists of ring bodies 115, 116, 117, 118, 119, 5 detachably connected to one another at the free ends of the drive axles 21, 21a, fixed disks 101 b, 102 b, which in the ring groove of which the ring body 115 forms the bottom part of 125 go around facing each other. The discharge mixing chamber 10 with the feed pipes 30, 31 and pipe 13 is provided laterally in the upper portion of the Beruhider ring body 119, the upper chamber closure supply chamber 12.

or the support body for the upper sedative means of the inventive design of a chamber 12, while the annular body 116, 117 io mixing chamber with a disk stirrer is opposite and 118 the annular grooves 112, 113, 114 for the disk guaranteed over the known devices that ben 101a, 102 a, 103 a have. All of the annular bodies, all of the substances 115 to 119 fed in via the feed pipes 30, 31, correspond to the one shown in FIG. 5 can be detected by the stirrer and that a homo-set ring body 116 with through-bores is obtained. Of essential gene 120, 121 provided to the ring body by means of 15 advantage is the use of dividing and stirring fastening screws or the like. Connect discs whose diameter is larger than can. The inner diameter of the container and the annular groove arranged in a sealing ring to increase the seal can run between each two ring bodies, as this can be compared to the known net. To form the annular groove for the disc stirrers, in which part of the mix is at the bottom, each ring body has the inner wall of the container pushed up on its upper side 20 and has an annular recess 122 (FIG. 5). If the inner wall and stirrer are guided past this onto an annular body designed in this way, without the material being set by the stirrer, the bottom of the annular body is impacted, and each particle of the pressurized surface forms the upper limit of the annular body Substances is detected and the same Bearnehmung, so that the annular groove is formed. 25 is subject to bedding, since the splitting effect of the part bodies for the rotor chamber 11 is the possibility 114; 125 is achieved. In this way, given a plurality of substances introduced with recesses or ring nut mixing chamber 10, homogeneously distributed th provided ring bodies are placed on top of one another, around and comminuted. If solids and liquids are introduced in one of the number of disks to be used, intensive wetting of the benches will create a corresponding number of annular grooves. Dry matter reached. In the case of substances that are subject to a certain swelling, the swelling or substances, the inner wall of the rotor chamber 11 post-swelling time is significantly reduced,
or the inner wall of the individual ring bodies 115. The homogenizing and dispersing process is significantly accelerated up to 119 with profiling, for example with circumferential 35, and the degree of hopping profile grooves or with profile bulges 123 as a homogeneous distribution of the substances is increased when flow breakers for the The inner wall of the mixing chamber 10, which is supplied under pressure, is provided with preferred starting materials, which are also provided in sections in the area of the disks, rib-like protrusions 123 are provided as flow breakers on the inner walls,
nen. ■ 40 In the use of three slices of 101,102, are all discs 101,102,103 or 101 a, 102 a, 103 of which the central disc 102 has a size-103 α mounted on a common drive shaft, reindeer diameter than the other discs so have all the axes the same direction of rotation. has and is designed as a wave washer, there is, however, the possibility of rotating the disks with a very good homogenization of the starting materials in opposite directions of rotation. Here- reaches 45, since all of the particles of these substances a through to the drive shaft 21 for the disks 101 and 103 related local Zerteil disc b 101 is shown in FIG. 6 formed as a hollow shaft, which at its or Zerreißeffekt and the wave washer 102 free upper end of the disk 101 & carries. The on 'are exposed to a centrifugal effect, whereby the drive shaft 21 is interposed by a good homogenization as well as a good one

124 indicated transmission elements, for example 50 emulsification of the substances is achieved. Furthermore instructed Gears associated with the motor 22. gen the starting materials or the mixed products of a Inside the hollow axle 21, there is a second treatment that is gentle on the drive, whatever, in particular axis 21a out, which is driven by the motor 22a is advantageous when resinous substances ben will be used and their free, above the plane of the disc.

101 b extended end of the disk 102 carries. The 55th

Diameter of the two disks 101 b, 102 b is

slightly larger than the inside diameter of the

Rotor chamber 11; both discs 101b, 102 b run claims:

in the annular groove provided in the inner wall

125 um. Due to the use of two into each 60 1. An apparatus for continuously Disperandergeführten, drivable independently of one another and homogenizing yaw of predominantly vis-axis with the disks 101 b, 102b, there is a caressing substances, consisting of a mixing chamber possibility of the discs on the one hand with gegensinni - With rotating paddle stirrer in it, which can revolve with in the direction of rotation and on the other hand with different rotating range of the stirrer -mouthing velocities. 65 feed lines for the starting materials and one

According to a further embodiment provided in accordance with the discharge pipe for the dispersion product

F i g. 7 have the calming chamber 12 and the is, wherein the mouth openings of the supply

The rotor chamber 11 of the mixing chamber 10 has the same inner tubes approximately perpendicular to the most effective edges

at least one high-speed rotating wing. stirrer are directed while the mixing chamber consists of two parts, namely one enlarged with respect to the diameter of the stirrer Rotor chamber and from a settling chamber arranged between this and the discharge pipe, which opposite the rotor chamber a has a smaller diameter, according to patent 1297445, characterized in that a disk stirrer with at least one stirring disk is arranged in the rotor chamber (11) and. that the inner wall of the rotor chamber is provided with profiles.

2. Apparatus according to claim 1, characterized in that the disc stirrer has three spaced apart discs (101, 102, 103), of which the middle disc (102) compared to the two "other discs (101, 103) with a larger one Diameter is provided.

3. Device according to claims 1 and 2, characterized in that the middle disc (102) is designed as a wave washer.

4. Device according to claims 1 and 2, characterized in that the circumferential edge of the miulcren disc (102) has a wave profile.

5. Device according to claims 1 and 2, characterized in that the disks (101, 102, 103) are provided with slot-shaped incisions (104, 105, 106, 107) extending radially from the outer circumference to the center of the disk, and those adjacent to the incisions Disc sections (108, 109, 110, 111) are bent down from the plane of the disc.

6. Apparatus according to claim 5, characterized in that the longitudinal edges (112) of the bent disk sections (108, 109, 110, 111) are designed as cutting edges.

7. Device according to claims 1 to 4, characterized in that the discs (101, 102, 103) are provided on their outer circumference with a sawtooth-shaped profile.

'8. Device according to claims 1 to 7, characterized in that the inner wall of the rotor chamber (11) in the region of the disks (101 a, 102 a, 103 a) is provided with annular grooves (112, 113, 114) and that the The diameter of the disks (101a, 102 a, 103 a) is somewhat smaller than the diameter of the annular grooves (112, 113, 114) .

9. Device according to claims 1 to 8, characterized in that the rotor chamber (11) consists of several detachably interconnected annular bodies (115, 116, 117, 118, 119) , of which the in the area of the discs (101a, 102 a , 103 a) lying annular body (116, 117, 118) have the annular grooves (112, 113, 114) for the disks (101a, 102 a, 103 a).

10. Device according to claims 1 to 9, characterized in that the inner wall the rotor chamber (11) is provided with bead-like profiles (123) as a flow breaker.

11. Device according to claims 1 to 10, characterized in that the disc (101 b) is arranged at the free upper end of a drive shaft designed as a hollow shaft (21), in which a separate drive (22 a) is connected Drive axle (21 α) is guided with a second disc (102 ft) at its upper free end, and that the direction of rotation of the two drive axles (21, 21 α) is opposite. . ,

12 .. Device according to claim 11, characterized in that the direction of rotation of the two Drive axles (21, 21a) are in the same direction.

13. Device according to claims 1 to 10, characterized in that the calming chamber (12) and the rotor chamber (11) have the same inner diameter and two disc stirrers (101 b, 102 b) which are aligned with one another with their axes (21, 21a) are arranged opposite one another.

14. The device according to claim 11, characterized in that the two discs (101 b, 102 b) are arranged in an annular groove (125) .

For this purpose 2 sheets of drawings