WO2003022414A1 - Mixing device for mixing powder substances with water - Google Patents

Mixing device for mixing powder substances with water Download PDF

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Publication number
WO2003022414A1
WO2003022414A1 PCT/EP2002/008477 EP0208477W WO03022414A1 WO 2003022414 A1 WO2003022414 A1 WO 2003022414A1 EP 0208477 W EP0208477 W EP 0208477W WO 03022414 A1 WO03022414 A1 WO 03022414A1
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WO
WIPO (PCT)
Prior art keywords
mixing
drive
roller chain
drive motor
output shaft
Prior art date
Application number
PCT/EP2002/008477
Other languages
German (de)
French (fr)
Inventor
Martin Theodor Melchior
Original Assignee
Martin Theodor Melchior
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.)
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Publication date
Application filed by Martin Theodor Melchior filed Critical Martin Theodor Melchior
Publication of WO2003022414A1 publication Critical patent/WO2003022414A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/1238—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
    • B28C5/1292—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices with rotating stirring and feeding or discharging means fixed on the same axis, e.g. in an inclined container fed at its lower part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/53—Mixing liquids with solids using driven stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/95—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/33—Transmissions; Means for modifying the speed or direction of rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis

Definitions

  • the invention relates to a mixing device for mixing powdery or fine-grained substances with water, in particular building materials, for example gypsum, cement and lime, with water.
  • building materials for example gypsum, cement and lime
  • Mixing devices in which powdery or fine-grained mix is mixed with water are known. These usually have a funnel-shaped conveying container for the pulverulent mixture, a mixing zone connected to the funnel outlet down into which the water is introduced, and a mixing whisk which detects the mixture entering the conveying container through an opening and transports it into the mis zone ,
  • the mixing mixer engages with a drive motor on the conveyor tank side and with a feed pump on the isch zone side, which pumps the mixed material into a pipeline.
  • the feed pump is usually a screw pump and rotates simultaneously with the mixer.
  • the mixing paddle has two mixing rods arranged parallel to its axis of rotation in the mixing zone, which extend as far as the feed pump and are connected to one another by a crossbar on the feed pump side, which is also designed as a driving element for the feed pump and which also ensures the stability of the mixer paddle.
  • the mixing rods are connected to one another at their upper end in the region of the feed hopper outlet with a crosspiece, on which a drive rod guided through the feed hopper is fixedly arranged, which is in engagement with the drive shaft of the drive motor.
  • a mixing spiral is arranged, which is firmly connected with its delivery pump-side end to one of the two mixing rods and is spiral and. extends upwards into the hopper.
  • BESTATIGUNGSKOPIE DE-A-197 29 196 and DE-A-197 55 059 each have a problem, in which measures are taken to accelerate the mixing process and to improve the mixing result, which relate to its design and spatial extension.
  • at least one auxiliary mixing rod is additionally arranged in the region of the orbit of the mixing rods. This auxiliary mixing rod increases the effectiveness of the mixing process while largely avoiding clumping.
  • the invention consists in the fact that the mixing tool arranged in a mixing zone of a mixing device for mixing powdery substances with water and driven by a drive motor is formed from at least one mixing element which is rotatably coupled to the output shaft of the drive motor at a distance from the axis of rotation of the bearing holder Output shaft is rotatably mounted and performs a rotational movement of the drive element as well as an additional rotational movement about its own axis.
  • the mixing element has a drive wheel, which forms a transmission with the mixing chamber wall serving as the transmission member or with a transmission member arranged non-rotatably relative thereto, through which the drive wheel is driven when the bearing holder rotates.
  • the at least one mixing element moved about this at a distance from the axis of rotation of the drive element and thereby additionally set in rotation already leads to an improvement in the mixing process and to an increase in the conveying capacity of the mixing device.
  • a plurality of mixing elements are arranged at the same distance from one another, so that the mixing process is considerably improved and accelerated, the rotating and rotating mixing elements transporting the material to be mixed to an opening arranged centrally under the mixing zone. This increases the delivery rate.
  • a feed pump can be arranged below the mixing zone.
  • This and the bearing holder can be connected to a drive element coupled to the output shaft of the drive motor.
  • This is advantageously a drive rod of any cross-sectional shape coupled to the output shaft of the drive motor, a square or rectangular cross-sectional shape in particular facilitating the non-rotatable arrangement of the bearing receptacle.
  • such a cross-sectional shape also facilitates a loose coupling of the drive rod with the aid of a driving claw to the output shaft of the drive motor, the loose connection between the driving claw and the drive rod being necessary to enable the same to swing.
  • a slow-running rotary pump can also advantageously be used as the feed pump because the mixing elements rotate faster.
  • the mixing elements ensure that the mixed mixture is transported to the opening arranged with ig or to the suction opening of the feed pump, it is also possible to dispense with a feed pump, so that the drive element can then also be omitted.
  • the concentrically formed gear link can be a ring gear or a roller chain arranged in a ring and the like Drive wheel a gear or a sprocket, which is either inside or outside of the ring gear or roller chain ring with the same in engagement.
  • the roller chain serves as a fixed wheel, such as the outer wheel in a planetary gear, but has the advantage that sprockets and thus also mixing elements can be arranged both on the outside and on the inside thereof.
  • the roller chain can be designed as a duplex roller chain. It is advantageously arranged with the one chain run on a circular mounting flange, which is non-rotatably mounted on a hollow cylindrical approach connected to the drive motor or the mixing chamber wall and optionally coaxially surrounding the drive element, and stands with the second chain run arranged under the first the sprocket or sprockets in engagement.
  • the arrangement of several mixing elements prevents mixing-free zones in the mixing zone.
  • the arrangement of the mixing elements which allows a wobbling movement of the same within limits, also contributes to this.
  • Fig.l the mixing chamber of a mixing device in a vertical section with a mixing tool, partly schematically,
  • the cylindrical mixing chamber shown in FIG. 1 of a mixing device for mixing powdery substances with Water has a water supply W and an opening for supplying the respective substance P.
  • a drive motor M with an output shaft 1 is arranged above the mixing chamber, with which a drive rod 2 with a rectangular cross section for a bearing mounting plate 3 and a rotary pump 4 are rotatably coupled via a driving claw 5.
  • the bearing holder 3 is connected to the drive rod 2. As shown in FIG. 2b, the latter has a triangular shape with rounded corners and carries a mixing tool formed from six individual mixing elements 10 and 11.
  • the mixing elements 10 and 11 are rotatably mounted on the bearing mounting plate 3 at a distance from the axis of rotation A of the drive rod 2 and each have a sprocket 13 or 14 as a drive wheel for their own rotational movement at the upper end of their drive shaft 12.
  • the mixing elements 10 are formed from two mixing bars 15 arranged axially parallel to their axis of rotation B, and the mixing elements 11 from two mixing bars 16 axially parallel to their axis of rotation C and a mixing helix 17 surrounding them.
  • the drive wheels 13 and 14 are in engagement with the lower chain run 18.1 of a duplex roller chain 18. This is held with its upper chain run 18.2 on an annular mounting flange 19, which engages with four locking pins 20 fastened to this in the holes 9 of the rim 8, and provides a concentrically formed, non-rotatably connected to the mixing chamber wall or the cover 6 arranged thereon Gear member, which forms a gear with the respective drive wheel 13 or 14.
  • Fig. 1 shows that the mixing elements 10 on the inside, the fixed duplex roller chain 18 are engaged with this and the mixing elements 11 on the outside. The arrangement is illustrated in Fig. 2b. When the drive rod 2 and the bearing mounting plate 3 rotate, the mixing elements 11 execute a counter-rotating movement to the mixing elements 10.
  • 3a and b show the connection of the drive rod 2 to the output shaft 1 of the drive motor M by means of the driving claw 5.
  • This (5) is connected in a rotationally fixed manner to the output shaft 1 and has a central bore 21 which has the output shaft 1 on the drive motor side and on the drive rod side receives a centering pin 22 formed on the drive rod 2.
  • the bore 21 opens into a driving slot 23 in which the drive rod 2 engages with play at its upper end and is carried along when the driving claw 5 rotates.
  • the bearing holder 3, the drive rod 2, the mixing elements 10 and 11 with the sprockets 13 and 14, the duplex roller chain 18 and the annular mounting flange 19 with the locking pin 20 form a structural unit which is connected to the drive rod between a receptacle arranged on the rotary pump 4 24 and the output shaft 1 is loosely arranged.

Abstract

The invention concerns a mixing device for mixing powder substances with water. Said device comprises a mixing instrument, arranged in a mixing zone, and a water supply, as well as a drive motor arranged above the mixing zone, said motor driving the mixing instrument. The invention aims at improving said device so as to greatly enhance its performance while maintaining high mixing efficiency. Therefor, the mixing instrument consists of at least a mixing member (10, 11) rotatably mounted, spaced apart from the axis of rotation of the driven shaft (1) of the drive motor (M), on a support housing (3) integrally coupled in rotation with said driven shaft (1). Said mixing member has a drive wheel (13, 14) which forms a gear assembly with the wall of the mixing chamber or with a toothed gearing element arranged integral in rotation relative to said wall and concentrically arranged (double roller chain (18)). Thus, when the support housing (3) rotates, the mixing member (10, 11) rotates therewith and performs an additional rotation about its own axis (B, C).

Description

Mischvorrichtung zum Mischen von pulverförmigen Stoffen mit WasserMixing device for mixing powdery substances with water
Die Erfindung betrifft eine Mischvorrichtung zum Mischen von pulverförmigen oder feinkörnigen Stoffen mit Wasser, insbesondere von Baustoffen, beispielsweise Gips, Zement und Kalk, mit Wasser.The invention relates to a mixing device for mixing powdery or fine-grained substances with water, in particular building materials, for example gypsum, cement and lime, with water.
Mischvorrichtungen, in denen pulverförmiges oder feinkörniges Mischgut mit Wasser vermischt wird, sind bekannt. Diese weisen üblicherweise einen trichterförmigen Förderbehälter für das pulverförmige Mischgut, eine an den Trichterausgang nach unten angeschlossene Mischzone, in die das Wasser eingeleitet wird, und einen Mischquirl auf, der das durch eine Öffnung in den Förderbehälter eingegebene Mischgut erfaßt und in die Misσhzo- ne verbringt. Der Mischquirl wiederum steht förderbehältersei- tig mit einem Antriebsmotor und ischzonenseitig mit einer Förderpumpe in Eingriff, die das gemischte Gut in eine Rohrleitung pumpt. Die Förderpumpe ist üblicherweise eine Schnek- kenpumpe und dreht sich simultan mit dem Mischquirl.Mixing devices in which powdery or fine-grained mix is mixed with water are known. These usually have a funnel-shaped conveying container for the pulverulent mixture, a mixing zone connected to the funnel outlet down into which the water is introduced, and a mixing whisk which detects the mixture entering the conveying container through an opening and transports it into the mis zone , The mixing mixer, in turn, engages with a drive motor on the conveyor tank side and with a feed pump on the isch zone side, which pumps the mixed material into a pipeline. The feed pump is usually a screw pump and rotates simultaneously with the mixer.
Der Mischquirl weist in der Mischzone zwei parallel zu seiner Drehachse im Abstand angeordnete Mischstäbe auf, die bis zur Förderpumpe reichen und förderpumpenseitig durch einen Zentrierzapfen aufweisenden und zugleich als Mitnahmeelement für die Förderpumpe ausgebildeten Querstab miteinander verbunden sind, der auch die Stabilität des Mischquirls sicherstellt. Die Mischstäbe sind an ihrem oberen Ende im Bereich des Fördertrichterausganges mit einem Quersteg miteinander verbunden, an dem ein durch den Fördertrichter geführter Antriebsstab fest angeordnet ist, der mit der Antriebswelle des Antriebsmotors in Eingriff steht. Um diesen Antriebsstab ist eine Mischspirale angeordnet, die mit ihrem förderpumpenseitigen Ende it einem der beiden Mischstäbe fest verbunden ist und sich spiralförmig und. nach oben öffnend in den Fördertrichter erstreckt .The mixing paddle has two mixing rods arranged parallel to its axis of rotation in the mixing zone, which extend as far as the feed pump and are connected to one another by a crossbar on the feed pump side, which is also designed as a driving element for the feed pump and which also ensures the stability of the mixer paddle. The mixing rods are connected to one another at their upper end in the region of the feed hopper outlet with a crosspiece, on which a drive rod guided through the feed hopper is fixedly arranged, which is in engagement with the drive shaft of the drive motor. Around this drive rod a mixing spiral is arranged, which is firmly connected with its delivery pump-side end to one of the two mixing rods and is spiral and. extends upwards into the hopper.
BESTATIGUNGSKOPIE Die DE-A-197 29 196 und die DE-A-197 55 059 haben jeweils einen Misσhquirl zum Gegenstand, bei denen Maßnahmen zur Beschleunigung des Mischprozesses und zur Verbesserung des Mischergebnisses getroffen sind, die dessen Gestaltung und räumliche Ausdehnung betreffen. Beim Mischquirl nach der DE-A-197 55 059 ist im Bereich der Umlaufbahn der Mischstäbe desselben zusätzlich wenigstens ein Hilfs-Mischstab angeordnet. Durch diesen Hilfs-Mischstab wird die Effektivität des Mischprozesses unter weitestgehender Vermeidung von Verklumpungen erhöht.BESTATIGUNGSKOPIE DE-A-197 29 196 and DE-A-197 55 059 each have a problem, in which measures are taken to accelerate the mixing process and to improve the mixing result, which relate to its design and spatial extension. In the mixing mixer according to DE-A-197 55 059, at least one auxiliary mixing rod is additionally arranged in the region of the orbit of the mixing rods. This auxiliary mixing rod increases the effectiveness of the mixing process while largely avoiding clumping.
Der Leistungsfähigkeit einer Mischvorrichtung mit einem Mischquirl sind jedoch Grenzen gesetzt.However, the performance of a mixing device with a mixer is limited.
Es ist daher Aufgabe der Erfindung, eine Mischvorrichtung zum Mischen von pulverförmigen Stoffen mit Wasser nach dem Oberbegriff des Anspruchs 1 so zu gestalten, daß deren Förderleistung bei hoher Effektivität des Mischprozesses erheblich erhöht ist.It is therefore an object of the invention to design a mixing device for mixing powdery substances with water in accordance with the preamble of claim 1 in such a way that their conveying capacity is considerably increased while the mixing process is highly effective.
Diese Aufgabe wird bei einer Mischvorrichtung nach dem Oberbegriff des Anspruchs 1 durch dessen kennzeichnende Merkmale gelöst . Vorteilhafte Ausgestaltungen sind in den Unteransprüchen aufgeführt .This object is achieved in a mixing device according to the preamble of claim 1 by the characterizing features. Advantageous configurations are listed in the subclaims.
Die Erfindung besteht darin, daß das in einer Mischzone einer Mischvorrichtung zum Mischen von pulverförmigen Stoffen mit Wasser angeordnete und von einem Antriebsmotor angetriebene Mischwerkzeug aus wenigstens einem Mischelement gebildet ist, das an einer mit der Abtriebswelle des Antriebsmotors drehfest gekoppelten Lageraufnahme im Abstand von der Drehachse der Abtriebswelle drehbar gelagert ist und bei einer Drehbewegung des Antriebselementes sowohl dessen Drehbewegung als auch eine zusätzliche Rotationsbewegung um die eigene Achse ausführt. Dazu weist das Misσhelement ein Antriebsrad auf, das mit der als Getriebeglied dienenden Mischkammerwandung oder mit einem drehfest gegenüber dieser angeordneten Getriebeglied ein Getriebe bildet, durch das das Antriebsrad bei einer Drehbewegung der Lageraufnahme angetrieben wird. Das wenigstens eine im Abstand von der Drehachse des Antriebselementes um diese bewegte und dabei zusätzlich in Rotation versetzte Mischelement führt schon zu einer Verbesserung des Mischprozesses und zu einer Steigerung der Förderleistung der Mischvorriσhtung.The invention consists in the fact that the mixing tool arranged in a mixing zone of a mixing device for mixing powdery substances with water and driven by a drive motor is formed from at least one mixing element which is rotatably coupled to the output shaft of the drive motor at a distance from the axis of rotation of the bearing holder Output shaft is rotatably mounted and performs a rotational movement of the drive element as well as an additional rotational movement about its own axis. For this purpose, the mixing element has a drive wheel, which forms a transmission with the mixing chamber wall serving as the transmission member or with a transmission member arranged non-rotatably relative thereto, through which the drive wheel is driven when the bearing holder rotates. The at least one mixing element moved about this at a distance from the axis of rotation of the drive element and thereby additionally set in rotation already leads to an improvement in the mixing process and to an increase in the conveying capacity of the mixing device.
In bevorzugter Ausführungsform sind jedoch mehrere Mischelemente im gleichen Abstand voneinander angeordnet, so daß der Mischvorgang erheblich verbessert und beschleunigt wird, wobei die kreisenden und rotierenden Mischelemente das Mischgut zu einer mittig unter der Mischzone angeordneten Öffnung transportieren. Damit wird die Fördermenge gesteigert.In a preferred embodiment, however, a plurality of mixing elements are arranged at the same distance from one another, so that the mixing process is considerably improved and accelerated, the rotating and rotating mixing elements transporting the material to be mixed to an opening arranged centrally under the mixing zone. This increases the delivery rate.
Unterhalb der Mischzone kann eine Förderpumpe angeordnet sein. Diese und die Lageraufnahme können mit einem mit der Abtriebs- welle des Antriebsmotors gekoppelten Antriebselement verbunden sein. Vorteilhaft ist dieses ein mit der Abtriebswelle des Antriebsmotors gekoppelter Antriebsstab beliebiger Querschnittsform, wobei insbesondere eine quadratische oder rechteckige Querschnittsform die drehfeste Anordnung der Lageraufnahme erleichtert . Darüber hinaus erleichtert eine derartige Querschnittsform auch eine lose Kopplung des Antriebsstabes mit Hilfe einer Mitnehmerklaue an die Abtriebswelle des Antriebs- otors, wobei die lose Verbindung zwischen der Mitnehmerklaue und dem Antriebsstab erforderlich ist, tun einen Pendelausschlag desselben zu ermöglichen.A feed pump can be arranged below the mixing zone. This and the bearing holder can be connected to a drive element coupled to the output shaft of the drive motor. This is advantageously a drive rod of any cross-sectional shape coupled to the output shaft of the drive motor, a square or rectangular cross-sectional shape in particular facilitating the non-rotatable arrangement of the bearing receptacle. In addition, such a cross-sectional shape also facilitates a loose coupling of the drive rod with the aid of a driving claw to the output shaft of the drive motor, the loose connection between the driving claw and the drive rod being necessary to enable the same to swing.
Dabei kann als Förderpumpe vorteilhaft auch eine langsamlaufende Rotationspumpe eingesetzt werden, weil sich die Mischelemente schneller drehen.A slow-running rotary pump can also advantageously be used as the feed pump because the mixing elements rotate faster.
Da die Misσhelemente dafür sorgen, daß die angerührte Mischung zur mit ig angeordneten Öffnung bzw. zur Ansaugöffnung der Förderpumpe transportiert wird, ist es auch möglich, auf eine Förderpumpe zu verzichten, so daß dann auch das Antriebselement entfallen kann.Since the mixing elements ensure that the mixed mixture is transported to the opening arranged with ig or to the suction opening of the feed pump, it is also possible to dispense with a feed pump, so that the drive element can then also be omitted.
Das konzentrisch ausgebildete Getriebeglied kann ein Zahnkranz oder aber eine kreisringförmig angeordnete Rollenkette und das Antriebsrad ein Zahnrad bzw. ein Kettenrad sein, das entweder innerhalb oder außerhalb des Zahnkranzes bzw. Rollenkettenringes mit demselben in Eingriff steht. Die Rollenkette dient als feststehendes Rad, wie etwa bei einem Planetengetriebe das äußere Rad, hat jedoch den Vorteil, daß sowohl auf deren Außenseite als auch auf deren Innenseite Kettenräder und damit auch Mischelemente angeordnet sein können.The concentrically formed gear link can be a ring gear or a roller chain arranged in a ring and the like Drive wheel a gear or a sprocket, which is either inside or outside of the ring gear or roller chain ring with the same in engagement. The roller chain serves as a fixed wheel, such as the outer wheel in a planetary gear, but has the advantage that sprockets and thus also mixing elements can be arranged both on the outside and on the inside thereof.
Die Rollenkette kann als Duplex-Rollenkette ausgebildet sein. Dabei ist sie vorteilhaft mit dem einen Kettenlauf an einem kreisförmigen Haiterungsflansch angeordnet, der an einem mit dem Antriebsmotor oder der Mischkammerwandung verbundenen und gegebenenfalls das Antriebselement koaxial umgebenden hohlzy- linderischen Ansatz drehfest gehaltert ist, und steht mit dem zweiten, unter dem ersten angeordneten Kettenlauf mit dem Kettenrad bzw. den Kettenrädern in Eingriff.The roller chain can be designed as a duplex roller chain. It is advantageously arranged with the one chain run on a circular mounting flange, which is non-rotatably mounted on a hollow cylindrical approach connected to the drive motor or the mixing chamber wall and optionally coaxially surrounding the drive element, and stands with the second chain run arranged under the first the sprocket or sprockets in engagement.
Durch die Anordnung mehrerer Mischelemente, insbesondere auf beiden Seiten der Rollenkette, werden mischungsfreie Zonen in der Mischzone vermieden. Dazu trägt auch die Anordnung der Mischelemente bei, die eine Taumelbewegung derselben in Grenzen zuläßt .The arrangement of several mixing elements, in particular on both sides of the roller chain, prevents mixing-free zones in the mixing zone. The arrangement of the mixing elements, which allows a wobbling movement of the same within limits, also contributes to this.
Die Erfindung wird nachstehend anhand eines Ausführungsbei- spiels erläutert, in den zugehörigen Zeichnungen zeigen:The invention is explained below on the basis of an exemplary embodiment, in the accompanying drawings:
Fig.l: die Mischkammer einer Misσhvorrichtung in einem Vertikalschnitt mit einem Mischwerkzeug, teilweise schematisch,Fig.l: the mixing chamber of a mixing device in a vertical section with a mixing tool, partly schematically,
Fig. 2a und 2b: den Antrieb für das Mischwerkzeug, gegenüber Fig. 1 vergrößert, und2a and 2b: the drive for the mixing tool, enlarged compared to FIG. 1, and
Fig. 3a und b: eine Mitnehmerklaue für einen Antriebsstab in einer Seitenansicht und in einem Schnitt II-I I.3a and b: a driving claw for a drive rod in a side view and in a section II-I I.
Die in Fig. 1 gezeigte zylinderförmige Mischkammer einer Misσhvorrichtung zum Mischen von pulverförmigen Stoffen mit Wasser weist eine Wasserzuführung W und eine Öffnung zum Zuführen des jeweiligen Stoffes P auf. Oberhalb der Mischkammer ist ein Antriebsmotor M mit einer Abtriebswelle 1 angeordnet, mit der ein Antriebsstab 2 rechteckigen Querschnitts für eine Lageraufnahmeplatte 3 und eine Rotationspumpe 4 über eine Mit- nehmerklaue 5 drehfest gekoppelt sind.The cylindrical mixing chamber shown in FIG. 1 of a mixing device for mixing powdery substances with Water has a water supply W and an opening for supplying the respective substance P. A drive motor M with an output shaft 1 is arranged above the mixing chamber, with which a drive rod 2 with a rectangular cross section for a bearing mounting plate 3 and a rotary pump 4 are rotatably coupled via a driving claw 5.
Am Deckel 6 der Misσhkammer ist ein die Abtriebswelle 1 und die Mitnehmerklaue 5 konzentrisch umgebender hohlzylindrischer Ansatz 7 fest angeordnet, an dem an seiner Außenwandung ein Lochkranz 8 mit vier im Abstand von 90° voneinander angeordneten Löchern 9 angeschweißt ist.On the cover 6 of the mis chamber, a hollow cylindrical projection 7, which concentrically surrounds the output shaft 1 and the driving claw 5, is fixedly arranged, on which an outer rim 8 with four holes 9 arranged at a distance of 90 ° from one another is welded to its outer wall.
Mit dem Antriebsstab 2 ist die Lageraufnahme 3 verbunden. Diese hat, wie Fig. 2b zeigt, eine Dreieckform mit abgerundeten Ecken und trägt ein aus sechs einzelnen Mischelementen 10 und 11 gebildetes Mischwerkzeug. Die Mischelemente 10 und 11 sind im Abstand von der Drehachse A des Antriebsstabes 2 an der Lageraufnahmeplatte 3 drehbar gelagert und weisen jeweils am oberen Ende ihrer Antriebswelle 12 ein Kettenrad 13 bzw. 14 als Antriebsrad für eine eigene Rotationsbewegung auf. Die Mischelemente 10 sind aus zwei zu ihrer Drehachse B achsparallel angeordneten Mischstäben 15 gebildet, und die Mischelemente 11 aus zwei zu ihrer Drehachse C achsparallelen Mischstäben 16 und einer diese umgebenden Mischwendel 17.The bearing holder 3 is connected to the drive rod 2. As shown in FIG. 2b, the latter has a triangular shape with rounded corners and carries a mixing tool formed from six individual mixing elements 10 and 11. The mixing elements 10 and 11 are rotatably mounted on the bearing mounting plate 3 at a distance from the axis of rotation A of the drive rod 2 and each have a sprocket 13 or 14 as a drive wheel for their own rotational movement at the upper end of their drive shaft 12. The mixing elements 10 are formed from two mixing bars 15 arranged axially parallel to their axis of rotation B, and the mixing elements 11 from two mixing bars 16 axially parallel to their axis of rotation C and a mixing helix 17 surrounding them.
Die Antriebsräder 13 und 14 stehen mit dem unteren Kettenlauf 18.1 einer Duplex-Rollenkette 18 in Eingriff. Diese ist mit ihrem oberen Kettenlauf 18.2 an einem kreisringförmigen Halterungsflansch 19 gehaltert, der mit vier an diesem befestigten Arretierungszapfen 20 in die Löcher 9 des Lochkranzes 8 eingreift, und stellt ein mit der Mischkammerwandung bzw. dem an dieser angeordneten Deckel 6 drehfest verbundenes, konzentrisch ausgebildetes Getriebeglied dar, das mit dem jeweiligen Antriebsrad 13 bzw. 14 ein Getriebe bildet. Fig. 1 läßt erkennen, daß die Mischelemente 10 an der Innenseite, der feststehenden Duplex-Rollenkette 18 mit dieser in Eingriff stehen und die Mischelemente 11 an deren Außenseite. Die Anordnung ist in Fig. 2b verdeutlicht. Bei einer Drehung des Antriebsstabes 2 und der Lageraufnahmeplatte 3 führen die Mischelemente 11 eine gegenläufige Rotationsbewegung zu den Mischelementen 10 aus. Wenn also die Lageraufnahme 3 im Uhrzeigersinn gedreht wird, werden auch die Antriebswellen 12 der Mischelemente mitbewegt, wodurch die mit der Duplex- Rollenkette 18 in Eingriff stehenden und an den Mischelementen 10 angeordneten Kettenräder 13 an dieser abrollen und eine Rotationsbewegung im Gegenuhrzeigersinn um ihre Drehachse B ausführen, wohingegen die Kettenräder 14 und damit die Mischelemente 11 eine Rotationsbewegung im Uhrzeigersinn ausführen.The drive wheels 13 and 14 are in engagement with the lower chain run 18.1 of a duplex roller chain 18. This is held with its upper chain run 18.2 on an annular mounting flange 19, which engages with four locking pins 20 fastened to this in the holes 9 of the rim 8, and provides a concentrically formed, non-rotatably connected to the mixing chamber wall or the cover 6 arranged thereon Gear member, which forms a gear with the respective drive wheel 13 or 14. Fig. 1 shows that the mixing elements 10 on the inside, the fixed duplex roller chain 18 are engaged with this and the mixing elements 11 on the outside. The arrangement is illustrated in Fig. 2b. When the drive rod 2 and the bearing mounting plate 3 rotate, the mixing elements 11 execute a counter-rotating movement to the mixing elements 10. Thus, when the bearing holder 3 is rotated clockwise, the drive shafts 12 of the mixing elements are also moved, as a result of which the sprockets 13 which are in engagement with the duplex roller chain 18 and are arranged on the mixing elements 10 roll thereon and a counterclockwise rotational movement about their axis of rotation B execute, whereas the sprockets 14 and thus the mixing elements 11 perform a clockwise rotation.
Die Fig. 3a und b zeigen die Verbindung des AntriebsStabes 2 mit der Abtriebswelle 1 des Antriebsmotors M vermittels der Mitnehmerklaue 5. Diese (5) ist drehfest mit der Abtriebswelle 1 verbunden und weist eine zentrale Bohrung 21 auf, die an- triebsmotorseitig die Abtriebswelle 1 und antriebsstabseitig einen am Antriebsstab 2 ausgebildeten Zentrierzapfen 22 aufnimmt. Die Bohrung 21 mündet in einen Mitnehmerschlitz 23, in dem der Antriebsstab 2 mit seinem oberen Ende mit Spiel eingreift und bei einer Drehbewegung der Mitnehmerklaue 5 mitgenommen wird.3a and b show the connection of the drive rod 2 to the output shaft 1 of the drive motor M by means of the driving claw 5. This (5) is connected in a rotationally fixed manner to the output shaft 1 and has a central bore 21 which has the output shaft 1 on the drive motor side and on the drive rod side receives a centering pin 22 formed on the drive rod 2. The bore 21 opens into a driving slot 23 in which the drive rod 2 engages with play at its upper end and is carried along when the driving claw 5 rotates.
Die Lageraufnahme 3, der Antriebsstab 2, die Mischelemente 10 und 11 mit den Kettenrädern 13 und 14, der Duplex-Rollenkette 18 und der kreisringförmige Halterungsflansch 19 mit den Arretierungszapfen 20 bilden eine Baueinheit, die mit dem Antriebsstab zwischen einer an der Rotationspumpe 4 angeordneten Aufnahme 24 und der Abtriebswelle 1 lose angeordnet ist. B E Z U G S Z E I C H E N L I S T EThe bearing holder 3, the drive rod 2, the mixing elements 10 and 11 with the sprockets 13 and 14, the duplex roller chain 18 and the annular mounting flange 19 with the locking pin 20 form a structural unit which is connected to the drive rod between a receptacle arranged on the rotary pump 4 24 and the output shaft 1 is loosely arranged. LIST OF REFERENCE NUMBERS
1 Abtriebswelle1 output shaft
2 Antriebsstab2 drive rod
3 Lageraufnahmeplatte3 bearing plate
4 Rotationspumpe4 rotary pump
5 Mitnehmerklaue5 driving claw
6 Deckel6 lids
7 Ansatz7 approach
8 Lochkranz8 holes
9 Loch9 holes
10 Mischelement10 mixing element
11 Mischelement11 mixing element
12 Antriebswelle12 drive shaft
13 Kettenrad13 sprocket
14 Kettenrad14 sprocket
15 Mischstab15 mixing stick
16 Mischstab16 mixing stick
17 Mischwendel17 mixing helix
18 Duplex-Rollenkette18 duplex roller chain
18.1 unterer Kettenlauf18.1 lower chain run
18.2 oberer Kettenlauf18.2 upper chain run
19 Halterungsflansch19 mounting flange
20 Arretierungsbolzen20 locking bolts
21 Bohrung21 hole
22 Zentrierzapfen22 centering pins
23 Mitnehmerschlitz23 drive slot
24 Aufnahme A Drehachse B Drehachse C Drehachse24 Recording A axis of rotation B axis of rotation C axis of rotation
M AntriebsmotorM drive motor
W WasserzuführungW water supply
P Stoffzuführung P material feed

Claims

A N S P R U C H E EXPECTATIONS
1. Mischvorrichtung zum Mischen von pulverförmigen Stoffen mit Wasser, mit einem in einer Mischzone angeordneten Mischwerkzeug und einer Wasserzuführung und mit einem oberhalb der Mischzone angeordneten Antriebsmotor für das Mischwerkzeug, dadurch gekennzeichnet, daß das Mischwerkzeug aus wenigstens einem Mischelement (10, 11) gebildet ist, das an einer mit der Abtriebswelle (1) des Antriebsmotors (M) drehfest gekoppelten Lageraufnahme (3) im Abstand von der Drehachse der Abtriebswelle (1) drehbar gelagert ist und ein Antriebsrad (13, 14) aufweist, das mit der Mischkammerwandung oder einem drehfest gegenüber dieser angeordneten, konzentrisch ausgebildeten Getriebeglied (Duplex-Rollenkette 18) ein Getriebe bildet, derart, daß das Misσhelement (10, 11) bei einer Drehbewegung der Lageraufnahme (3) sowohl deren Drehbewegung als auch eine zusätzliche Rotationsbewegung um die eigene Achse (B, C) ausführt.1. Mixing device for mixing powdery substances with water, with a mixing tool arranged in a mixing zone and a water supply and with a drive motor arranged above the mixing zone for the mixing tool, characterized in that the mixing tool is formed from at least one mixing element (10, 11) which is rotatably mounted on a bearing receptacle (3) rotatably coupled to the output shaft (1) of the drive motor (M) at a distance from the axis of rotation of the output shaft (1) and has a drive wheel (13, 14) which is connected to the mixing chamber wall or a rotatably arranged relative to this concentric gear link (duplex roller chain 18) forms a gear such that the mis-element (10, 11) during a rotational movement of the bearing holder (3) both its rotational movement and an additional rotational movement about its own axis (B , C) executes.
2. Mischvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß unterhalb der Mischzone eine Förderpumpe (4) angeordnet ist und daß diese und die Lageraufnahme (3) mit einem mit der Abtriebswelle (1) des Antriebsmotors (M) gekoppelten Antriebselement (2) verbunden sind.2. Mixing device according to claim 1, characterized in that a feed pump (4) is arranged below the mixing zone and that this and the bearing receptacle (3) are connected to a drive element (2) coupled to the output shaft (1) of the drive motor (M) ,
3. Misσhvorrichtung nach Anspruch 1, dadurσh gekennzeiσhnet, daß das konzentrisch ausgebildete Getriebeglied eine kreisringförmig angeordnete Rollenkette (18) und das Antriebsrad (13, 14) ein Kettenrad ist.3. Misσhvorrichtung according to claim 1, dadurσh gekennzeiσhnet that the concentrically formed gear link is an annular roller chain (18) and the drive wheel (13, 14) is a sprocket.
4. Mischvorriσhtung nach Anspruch 3, dadurch gekennzeichnet, daß das Kettenrad (13, 14) entweder innerhalb oder außerhalb des Rollenkettenringes mit der Rollenkette (18) in Eingriff steht .4. Mischvorriσhtung according to claim 3, characterized in that the sprocket (13, 14) either inside or outside of the roller chain ring with the roller chain (18) is engaged.
5. Misσhvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Antriebselement ein mit der Abtriebswelle (1) des An- triebsmotors (M) gekoppelter Antriebsstab (2) quadratischen oder rechteckigen Querschnitts ist.5. Misσhvorrichtung according to claim 2, characterized in that the drive element with the output shaft (1) of the drive drive motor (M) coupled drive rod (2) square or rectangular cross-section.
6. Mischvorriσhtung nach Anspruσh 5, dadurch gekennzeichnet, daß der Antriebsstab (2) über eine drehfest an der Abtriebswelle (1) angeordnete Mitnehmerklaue (5) mit dieser lose verbunden ist.6. Mischvorriσhtung according to Anspruσh 5, characterized in that the drive rod (2) via a rotationally fixed on the output shaft (1) arranged driving claw (5) is loosely connected to this.
7. Mischvorriσhtung nach Anspruσh 1, dadurσh gekennzeiσhnet, daß das Misσhelement (10, 11) wenigstens eine Antriebswelle (12) zur drehbaren Lagerung und zwei Misσhstäbe (15, 16) aufweist, die im wesentliσhen parallel und beidseitig seiner Drehaσhse (B, C) angeordnet sind.7. Mixing device according to claim 1, dadurσh gekennzeiσhnet that the Misσhelement (10, 11) has at least one drive shaft (12) for rotatable mounting and two measuring rods (15, 16), which are essentially parallel and on both sides of its rotary shaft (B, C) are arranged.
8. Misσhvorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß an den Mischstäben (16) eine diese umgebende Misσhwendel8. Misσhvorrichtung according to claim 7, characterized in that on the mixing rods (16) surrounding this Misσhwendel
(17) gehaltert ist.(17) is supported.
9. Misσhvorriσhtung naσh Anspruσh 3 oder 4, dadurσh gekennzeichnet, daß die Rollenkette als Duplex-Rollenkette (18) ausgebildet und mit dem einen Kettenlauf (18.2) an einem kreisringförmigen Halterungsflansch (19) angeordnet ist, der an einem mit dem Antriebsmotor (M) oder der Misσhkammerwandung verbunden hohlzylinderisσhen Ansatz (7) drehfest gehaltert ist, und daß das Kettenrad (13, 14) mit dem zweiten Kettenlauf (18.1) in Eingriff steht.9. Misσhvorriσhtung naσh 3 or 4, dadurσh characterized that the roller chain is designed as a duplex roller chain (18) and with the one chain run (18.2) on an annular mounting flange (19) which is arranged on one with the drive motor (M) or the hollow chamber wall connected hollow cylindrical extension (7) is held in a rotationally fixed manner, and that the chain wheel (13, 14) is in engagement with the second chain run (18.1).
10. Misσhvorriσhtung nach Anspruch 9, dadurch gekennzeichnet, daß das Misσhwerkzeug aus mehreren Misσhelementen (10, 11) gebildet ist, deren Kettenräder (13, 14) mit der Rollenkette10. Misσhvorriσhtung according to claim 9, characterized in that the Misσhwerkzeug from several Misσhelemente (10, 11) is formed, the sprockets (13, 14) with the roller chain
(18) in Eingriff stehen, und daß der Halterungsflansσh (19) mehrere Arretierungsbolzen (20) aufweist, die in Arretierungs- löσher (9) eingreifen, die an einem Loσhkranz (8) am hohlzy- linderischen Ansatz (7) ausgebildet sind.(18) are engaged, and that the mounting flange (19) has a plurality of locking bolts (20) which engage in locking holes (9) which are formed on a locking ring (8) on the hollow cylindrical extension (7).
11. Misσhvorriσhtung naσh Anspruσh 10, dadurch gekennzeichnet, daß die Misσhelemente (10, 11) untersσhiedliσh gestaltet sind. 11. Misσhvorriσhtung naσh Anspruσh 10, characterized in that the Misσhelemente (10, 11) are designed to be different.
PCT/EP2002/008477 2001-07-31 2002-07-30 Mixing device for mixing powder substances with water WO2003022414A1 (en)

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DE10137489.5 2001-07-31
DE10137489A DE10137489A1 (en) 2001-07-31 2001-07-31 Mixer device for mixing powdered materials with water has mixer element mounted on bearing socket and having drive wheel forming gearing with mixer chamber wall to execute extra rotation about own axis and about output shaft axis

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CN104526876A (en) * 2014-11-14 2015-04-22 常州市龙润机械有限公司 A deep stirrer
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CN113119309A (en) * 2021-04-28 2021-07-16 东营辰鑫应用技术开发有限公司 Oil field well cementation is with defeated grey device with multistage stirring function

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