EP1000718A2 - Mixer for making a pumpable mortar - Google Patents

Mixer for making a pumpable mortar Download PDF

Info

Publication number
EP1000718A2
EP1000718A2 EP99120460A EP99120460A EP1000718A2 EP 1000718 A2 EP1000718 A2 EP 1000718A2 EP 99120460 A EP99120460 A EP 99120460A EP 99120460 A EP99120460 A EP 99120460A EP 1000718 A2 EP1000718 A2 EP 1000718A2
Authority
EP
European Patent Office
Prior art keywords
mixing
mixer according
mixer
shaft
driver
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.)
Withdrawn
Application number
EP99120460A
Other languages
German (de)
French (fr)
Other versions
EP1000718A3 (en
Inventor
Johann Widl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wildgruber Baustoffwerke & Co KG GmbH
Original Assignee
Wildgruber Baustoffwerke & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19913646A external-priority patent/DE19913646A1/en
Application filed by Wildgruber Baustoffwerke & Co KG GmbH filed Critical Wildgruber Baustoffwerke & Co KG GmbH
Publication of EP1000718A2 publication Critical patent/EP1000718A2/en
Publication of EP1000718A3 publication Critical patent/EP1000718A3/en
Withdrawn legal-status Critical Current

Links

Images

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
    • B28C5/1276—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 consecutive separate containers with rotating stirring and feeding or discharging means
    • B28C5/1284—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 consecutive separate containers with rotating stirring and feeding or discharging means having a feeding hopper and consecutive vertical or inclined mixing container fed at its upper part
    • 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
    • B01F27/21—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by their rotating shafts
    • B01F27/2123—Shafts with both stirring means and feeding or discharging means
    • 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
    • B01F27/50—Pipe mixers, i.e. mixers wherein the materials to be mixed flow continuously through pipes, e.g. column mixers
    • 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
    • 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 mixer for producing pumpable Plastering compounds, in particular interior plaster, from dry matter and mixing water in a mixing tube that is a mixing spiral on a mixing shaft that encloses a driver for the screw of a screw pump arranged downstream of the mixing tube ends.
  • Such a mixer for example, is not published in the German patent application 197 57 734.2 known, but has the disadvantage that it, especially in the manufacture of plaster-based interior plaster, not the plaster sufficiently homogenized so that in the ready to use Mass lumps remain, which is the smoothing of the plaster complicate and to superficial during the setting Deepen, wherever lumps not sufficiently moist under the surface Material.
  • the invention has for its object the mixer to improve the genre mentioned in this regard.
  • the storage ring causes the dry matter and mixing water existing mass is redirected, which inevitably an additional mixing of the screw pump to be fed Cleaning compound causes, so that the cleaning compound the mixer homogeneously mixed in a uniform, lump-free, creamy consistency.
  • the storage ring non-rotatably connected to the mixing shaft (claim 2).
  • a conventional mixer can be replaced easily the mixing shaft, without other conversions, into one Mixer can be converted according to the invention.
  • the storage ring but can also be attached to the inner wall of the mixing tube be so that the mixing shaft rotates in the ring.
  • the retaining ring is preferably arranged in the area of the driver (Claim 3).
  • the homogenization of the plaster then takes place immediately before entering the Screw pump and the suction of the screw pump can support the homogenization by means of the accumulation.
  • the diameter of the storage ring is advantageously smaller than that Inner diameter of the mixing tube (claim 4).
  • the plaster is then through an annular gap between the baffle ring and the mixing tube wall into the suction zone of the screw pump pressed.
  • the retaining ring is advantageously distributed in the circumferential direction arranged blade plates, the degree of homogenization increase the amount of plaster (claim 5).
  • the blade plates can be on the top and bottom of the storage ring can be arranged (claim 6). Thereby can be a particularly good homogenization of the plaster to reach.
  • Each of the blade plates advantageously closes with one axial plane passing through the axis of the mixing shaft Angle of attack (claim 7). This measure will the plaster inevitably outwards, i.e. in the direction Mixing tube wall and annular gap, centrifuged.
  • the angle of attack can be between 30 and 70 °.
  • the outer edges of the blade plates hurry their inner wheels, based on the direction of rotation of the mixing shaft, according to (claim 8th).
  • the storage ring is according to a preferred embodiment arranged below the driver wedge of the driver and has a passage of the driven end of the shaft of the downstream screw allowing inner diameter (Claim 9).
  • the mixer shown in Fig. 1 for producing pumpable Plastering compounds from dry matter and mixing water consists of essentially from a mixing tube 1 which has a mixing spiral 11 encloses on a mixing shaft 12, one of the mixing tube 1 downstream screw pump 2 with a screw 21, and a drive motor 3, the mixing shaft 12 and at the same time via a driver 13 of the mixing shaft 12 also Screw 21 drives the screw pump 2.
  • the mixing tube 1 has a hopper 14 for supplying dry matter and one Connection piece 15 for the supply of mixing water.
  • the connecting piece 15 is located downstream of the mouth of the Funnel 14
  • the screw pump 2 has a steel jacket 22 and is like also known, inside with a screw 21 surrounding it Jacket 23 lined from an elastomer.
  • the worm 21 tumbles in the worm pump, at a speed of a few 100 rpm.
  • the homogenizing ring 16 consists of a Stauring 161 in on the top and bottom Blade plates 162 distributed around the circumferential direction wearing.
  • the blade plates 162 close with one through the Axial plane of the mixing shaft going an axial angle of about 40 °.
  • the outer edges of the blade plates 162 rush through their inner edges, based on those in Fig. 4 the direction of rotation of the mixing shaft indicated by the arrows. This inevitably leads the plaster to the outside Wall 17 of the mixing tube 1 flung and through a Annular gap 18 between the retaining ring 161 and the wall 17 in Pressed towards screw pump 2.
  • the storage ring 161 is below of the driver wedge 131 of the driver 13.
  • the Inner diameter of the storage ring 161 allows passage the driven end of the shaft of the downstream Snail 21.
  • Fig. 5 the flow behavior of the plaster is in the area of the homogenizing ring 16 shown.
  • the blade plates 162 together with the storage ring 161 cause the by means of the mixing helix (not shown in FIG. 5) pumped cleaning compound flung in the direction of the mixing tube wall 17, by a between the mixing tube wall 17 and the retaining ring 161 remaining annular gap 18 and then pressed transported in the direction of the suction zone 24 of the screw pump 2 becomes.
  • This creates centrifugal and shear forces that the in the plaster and not or not enough dissolve lumps soaked in water so that a homogeneous, the mixer in uniform, lump-free, plaster that leaves a creamy consistency.
  • the Cleaning compound is supported by the suction effect of the Worm pump 2, through the zone of the bottom of the Thrust ring 161 arranged blade plates 162 through Inlet of the screw pump 2 promoted.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

The mixer produces a mixture from dry material and added water. It includes a mixing tube (1) with a mixing screw (11) on a mixing shaft (12) ending in a carrier (13) for the screw conveyor (21) of a screw conveyor pump (2) fitted after the mixing tube. There is at least one baffle ring (16) in the wet region of the mixing tube. The ring is fixed to the mixing shaft.

Description

Die Erfindung betrifft einen Mischer zum Herstellen pumpfähiger Putzmassen, insbesondere Innenputz, aus Trockenmasse und Anmachwasser in einem Mischrohr, das eine Mischwendel auf einer Mischwelle umschließt, die an einem Mitnehmer für die Schnecke einer dem Mischrohr nachgeordneten Schneckenpumpe endet.The invention relates to a mixer for producing pumpable Plastering compounds, in particular interior plaster, from dry matter and mixing water in a mixing tube that is a mixing spiral on a mixing shaft that encloses a driver for the screw of a screw pump arranged downstream of the mixing tube ends.

Ein solcher Mischer ist beispielsweise aus der nicht veröffentlichen deutschen Patentanmeldung 197 57 734.2 bekannt, hat aber den Nachteil, daß er, insbesondere bei der Herstellung von Innenputz auf Gipsbasis, die Putzmasse nicht hinreichend homogenisiert, so daß in der verwendungsfertigen Masse Klumpen verbleiben, die den Glattstrich der Putzmasse erschweren und zu während des Abbindens entstehenden oberflächlichen Vertiefungen führen können, und zwar dort, wo unter der Oberfläche Klumpen nicht ausreichend durchfeuchteten Materials liegen.Such a mixer, for example, is not published in the German patent application 197 57 734.2 known, but has the disadvantage that it, especially in the manufacture of plaster-based interior plaster, not the plaster sufficiently homogenized so that in the ready to use Mass lumps remain, which is the smoothing of the plaster complicate and to superficial during the setting Deepen, wherever lumps not sufficiently moist under the surface Material.

Der Erfindung liegt die Aufgabe zugrunde, den Mischer der einleitend genannten Gattung in dieser Hinsicht zu verbessern.The invention has for its object the mixer to improve the genre mentioned in this regard.

Die Aufgabe ist bei einem solchen Mischer erfindungsgemäß dadurch gelöst, daß im Naßbereich des Mischrohrs mindestens ein Stauring angeordnet ist.The task of such a mixer is the invention solved in that at least in the wet area of the mixing tube a baffle ring is arranged.

Der Erindung liegt die Erkenntnis zugrunde, daß der obengenannte Nachteil des bekannten Mischers seine Ursache in dem kurzen Mischweg zwischen der Zufuhröffnung für das Anmachwasser und dem Eintritt der Masse in die Schneckenpumpe hat, der keine ausreichende Durchmischung und Homogenisierung zuläßt.Understanding is based on the knowledge that the above Disadvantage of the known mixer its cause in the short mixing path between the feed opening for the mixing water and the entry of the mass into the screw pump has insufficient mixing and homogenization allows.

Der Stauring bewirkt, daß die aus Trockenmasse und Anmachwasser bestehende Masse umgelenkt wird, was zwangsläufig eine zusätzliche Durchmischung der der Schneckenpumpe zuzuführenden Putzmasse bewirkt, so daß die Putzmasse den Mischer homogen gemischt in gleichmäßiger, klumpenfreier, cremeartiger Konsistenz verläßt.The storage ring causes the dry matter and mixing water existing mass is redirected, which inevitably an additional mixing of the screw pump to be fed Cleaning compound causes, so that the cleaning compound the mixer homogeneously mixed in a uniform, lump-free, creamy consistency.

Trotz des hohen Strömungswiderstands im Bereich des Staurings verringert sich überraschenderweise die Drehzahl der Mischwelle gegenüber bekannten Mischern nicht. Der Einsatz eines stärkeren Antriebsmotors ist also nicht erforderlich.Despite the high flow resistance in the area of the storage ring surprisingly, the speed of the Mixing shaft not compared to known mixers. The stake a stronger drive motor is therefore not necessary.

Nach einer bevorzugten Ausführungsform ist der Stauring drehfest mit der Mischwelle verbunden (Anspruch 2). In diesem Fall kann ein üblicher Mischer durch einfachen Austausch der Mischwelle, ohne sonstige Umbauten, in einen Mischer nach der Erfindung umgerüstet werden. Der Stauring kann aber auch an der Innenwandung des Mischrohrs befestigt sein, so daß sich die Mischwelle in dem Ring dreht.According to a preferred embodiment, the storage ring non-rotatably connected to the mixing shaft (claim 2). In In this case, a conventional mixer can be replaced easily the mixing shaft, without other conversions, into one Mixer can be converted according to the invention. The storage ring but can also be attached to the inner wall of the mixing tube be so that the mixing shaft rotates in the ring.

Bevorzugt ist der Stauring im Bereich des Mitnehmers angeordnet (Anspruch 3). Die Homogenisierung der Putzmasse erfolgt dann unmittelbar vor deren Eintritt in die Schneckenpumpe und die Saugwirkung der Schneckenpumpe kann die mittels des Staurings erfolgende Homogenisierung unterstützen.The retaining ring is preferably arranged in the area of the driver (Claim 3). The homogenization of the plaster then takes place immediately before entering the Screw pump and the suction of the screw pump can support the homogenization by means of the accumulation.

Zweckmäßig ist der Durchmesser des Staurings kleiner als der Innendurchmesser des Mischrohrs (Anspruch 4). Die Putzmasse wird dann durch einen Ringspalt zwischen dem Stauring und der Mischrohrwandung in die Ansaugzone der Schneckenpumpe gepreßt. The diameter of the storage ring is advantageously smaller than that Inner diameter of the mixing tube (claim 4). The plaster is then through an annular gap between the baffle ring and the mixing tube wall into the suction zone of the screw pump pressed.

Vorteilhaft trägt der Stauring in Umfangsrichtung verteilt angeordnete Schaufelplatten, die den Homogenisierungsgrad der Putzmasse erhöhen (Anspruch 5).The retaining ring is advantageously distributed in the circumferential direction arranged blade plates, the degree of homogenization increase the amount of plaster (claim 5).

Die Schaufelplatten können auf der Oberseite und der Unterseite des Staurings angeordnet sein (Anspruch 6). Dadurch läßt sich eine besonders gute Homogenisierung der Putzmasse erreichen.The blade plates can be on the top and bottom of the storage ring can be arranged (claim 6). Thereby can be a particularly good homogenization of the plaster to reach.

Vorteilhaft schließt jede der Schaufelplatten mit einer durch die Achse der Mischwelle gehenden Axialebene einen Anstellwinkel ein (Anspruch 7). Durch diese Maßnahme wird die Putzmasse zwangsläufig nach außen, d.h. in Richtung Mischrohrwandung und Ringspalt, geschleudert.Each of the blade plates advantageously closes with one axial plane passing through the axis of the mixing shaft Angle of attack (claim 7). This measure will the plaster inevitably outwards, i.e. in the direction Mixing tube wall and annular gap, centrifuged.

Der Anstellwinkel kann zwischen 30 und 70° liegen. Dabei eilen die Außenränder der Schaufelplatten deren Innenrädern, bezogen auf die Drehrichtung der Mischwelle, nach (Anspruch 8).The angle of attack can be between 30 and 70 °. Here the outer edges of the blade plates hurry their inner wheels, based on the direction of rotation of the mixing shaft, according to (claim 8th).

Der Stauring ist nach einer bevorzugten Ausführungsform unterhalb des Mitnehmerkeils des Mitnehmers angeordnet und hat einen den Durchtritt des angetriebenen Endes der Welle der nachgeordneten Schnecke erlaubenden Innendurchmesser (Anspruch 9).The storage ring is according to a preferred embodiment arranged below the driver wedge of the driver and has a passage of the driven end of the shaft of the downstream screw allowing inner diameter (Claim 9).

Ein Ausführungsbeispiel des Mischers nach der Erfindung ist in der Zeichnung schematisch vereinfacht dargestellt. Es zeigt:

Fig. 1
einen Mischer;
Fig. 2
eine Aufsicht auf den Homogenisierring des Mischers nach Fig. 1;
Fig. 3
eine perspektivische Ansicht der Mischwelle des Mischers nach Fig. 1;
Fig. 4
eine weitere perspektivische Ansicht der Mischwelle des Mischers nach Fig. 1;
Fig. 5
das Strömungsverhalten der Putzmasse im Bereich des Homogenisierrings.
An embodiment of the mixer according to the invention is shown schematically simplified in the drawing. It shows:
Fig. 1
a mixer;
Fig. 2
a plan view of the homogenizing ring of the mixer according to Fig. 1;
Fig. 3
a perspective view of the mixing shaft of the mixer of FIG. 1;
Fig. 4
another perspective view of the mixing shaft of the mixer of FIG. 1;
Fig. 5
the flow behavior of the plaster in the area of the homogenizing ring.

Der in Fig. 1 dargestellte Mischer zum Herstellen pumpfähiger Putzmassen aus Trockenmasse und Anmachwasser besteht im wesentlichen aus einem Mischrohr 1, das eine Mischwendel 11 auf einer Mischwelle 12 umschließt, einer dem Mischrohr 1 nachgeordneten Schneckenpumpe 2 mit einer Schnecke 21, sowie einem Antriebsmotor 3, der die Mischwelle 12 und gleichzeitig über einen Mitnehmer 13 der Mischwelle 12 auch die Schnecke 21 der Schneckenpumpe 2 antreibt. Das Mischrohr 1 hat einen Trichter 14 zur Zufuhr von Trockenmasse und einen Anschlußstutzen 15 zur Zufuhr von Anmachwasser. Der Anschlußstutzen 15 befindet sich stromab der Mündung des Trichters 14.The mixer shown in Fig. 1 for producing pumpable Plastering compounds from dry matter and mixing water consists of essentially from a mixing tube 1 which has a mixing spiral 11 encloses on a mixing shaft 12, one of the mixing tube 1 downstream screw pump 2 with a screw 21, and a drive motor 3, the mixing shaft 12 and at the same time via a driver 13 of the mixing shaft 12 also Screw 21 drives the screw pump 2. The mixing tube 1 has a hopper 14 for supplying dry matter and one Connection piece 15 for the supply of mixing water. The connecting piece 15 is located downstream of the mouth of the Funnel 14

Die Schneckenpumpe 2 hat einen Stahlmantel 22 und ist, wie auch bekannt, innen mit einem die Schnecke 21 umgebenden Mantel 23 aus einem Elastomer ausgekleidet.The screw pump 2 has a steel jacket 22 and is like also known, inside with a screw 21 surrounding it Jacket 23 lined from an elastomer.

Die Schnecke 21 dreht sich taumelnd in der Schneckenpumpe, und zwar mit einer Drehzahl von einigen 100 U/min. Die motorisch angetriebene Mischwelle 12, die über den Mitnehmer 13 mit der Schnecke 21 gekuppelt ist, folgt dieser Taumelbewegung, die durch unterschiedliche Steigungen der Schneckengänge der Schnecke 21 einerseits und der ansonsten komplementären Schneckengänge in dem Mantel 23 andererseits erzeugt werden.The worm 21 tumbles in the worm pump, at a speed of a few 100 rpm. The motor-driven mixing shaft 12, which over the driver 13 is coupled to the screw 21, this wobble follows due to different inclines of the screw flights the screw 21 on the one hand and the otherwise complementary On the other hand, worm threads are generated in the jacket 23 become.

Im Bereich des Mitnehmers 13 der Mischwelle 12 ist ein in den Figuren 2 bis 5 vergrößert dargestellter Homogenisierring 16 angeordnet, der in der Putzmasse noch vorhandene Klumpen auflöst. Der Homogenisierring 16 besteht aus einem Stauring 161, der auf der Oberseite und der Unterseite in Umfangsrichtung verteilt angeordnete Schaufelplatten 162 trägt. Die Schaufelplatten 162 schließen mit einer durch die Achse der Mischwelle gehenden Axialebene einen Anstellwinkel von etwa 40° ein. Die Außenränder der Schaufelplatten 162 eilen deren Innenrändern, bezogen auf die in Fig. 4 durch die Pfeile angedeutete Drehrichtung der Mischwelle, nach. Dadurch wird die Putzmasse zwangsläufig nach außen an die Wandung 17 des Mischrohrs 1 geschleudert und durch einen Ringspalt 18 zwischen dem Stauring 161 und der Wandung 17 in Richtung Schneckenpumpe 2 gepresst.In the area of the driver 13 of the mixing shaft 12 is an in Figures 2 to 5 enlarged homogenizing ring 16 arranged, the still existing in the plaster Clump dissolves. The homogenizing ring 16 consists of a Stauring 161 in on the top and bottom Blade plates 162 distributed around the circumferential direction wearing. The blade plates 162 close with one through the Axial plane of the mixing shaft going an axial angle of about 40 °. The outer edges of the blade plates 162 rush through their inner edges, based on those in Fig. 4 the direction of rotation of the mixing shaft indicated by the arrows. This inevitably leads the plaster to the outside Wall 17 of the mixing tube 1 flung and through a Annular gap 18 between the retaining ring 161 and the wall 17 in Pressed towards screw pump 2.

Wie Fig. 4 zu entnehmen ist, ist der Stauring 161 unterhalb des Mitnehmerkeils 131 des Mitnehmers 13 angeordnet. Der Innendurchmesser des Staurings 161 erlaubt den Durchtritt des angetriebenen Endes der Welle der nachgeordneten Schnecke 21.4, the storage ring 161 is below of the driver wedge 131 of the driver 13. The Inner diameter of the storage ring 161 allows passage the driven end of the shaft of the downstream Snail 21.

In Fig. 5 ist das Strömungsverhalten der Putzmasse im Bereich des Homogenisierrings 16 dargestellt. Die Schaufelplatten 162 bewirken zusammen mit dem Stauring 161, daß die mittels der (in Fig. 5 nicht dargestellten) Mischwendel geförderte Putzmasse in Richtung Mischrohrwandung 17 geschleudert, durch einen zwischen der Mischrohrwandung 17 und dem Stauring 161 verbleibenden Ringspalt 18 gepreßt und dann in Richtung Ansaugzone 24 der Schneckenpumpe 2 transportiert wird. Dadurch entstehen Schleuder- und Scherkräfte, die die in der Putzmasse befindlichen und nicht oder nicht ausreichend mit Wasser benetzten Klumpen auflösen, so daß eine homogene, den Mischer in gleichmäßiger, klumpenfreier, cremeartiger Konsistenz ver-lassende Putzmasse entsteht. Die Putzmasse wird, unterstützt durch die Saugwirkung der Schneckenpumpe 2, durch die Zone der an der Unterseite des Stauring 161 angeordneten Schaufelplatten 162 hindurch zum Einlaß der Schneckenpumpe 2 gefördert.In Fig. 5 the flow behavior of the plaster is in the area of the homogenizing ring 16 shown. The blade plates 162 together with the storage ring 161 cause the by means of the mixing helix (not shown in FIG. 5) pumped cleaning compound flung in the direction of the mixing tube wall 17, by a between the mixing tube wall 17 and the retaining ring 161 remaining annular gap 18 and then pressed transported in the direction of the suction zone 24 of the screw pump 2 becomes. This creates centrifugal and shear forces that the in the plaster and not or not enough dissolve lumps soaked in water so that a homogeneous, the mixer in uniform, lump-free, plaster that leaves a creamy consistency. The Cleaning compound is supported by the suction effect of the Worm pump 2, through the zone of the bottom of the Thrust ring 161 arranged blade plates 162 through Inlet of the screw pump 2 promoted.

Claims (9)

Mischer zum Herstellen pumpfähiger Putzmassen, insbesondere Innenputz, aus Trockenmasse und Anmachwasser in einem Mischrohr (1), das eine Mischwendel (11) auf einer Mischwelle (12) umschließt, die an einem Mitnehmer (13) für die Schnecke (21) einer dem Mischrohr (1) nachgeordneten Schneckenpumpe (2) endet, dadurch gekennzeichnet, daß im Naßbereich des Mischrohrs (1) mindestens ein Stauring (161) angeordnet ist.Mixer for producing pumpable plastering compounds, in particular interior plaster, from dry matter and mixing water in a mixing tube (1) which encloses a mixing spiral (11) on a mixing shaft (12) which is attached to a driver (13) for the screw (21) of the mixing tube (1) downstream screw pump (2) ends, characterized in that at least one retaining ring (161) is arranged in the wet region of the mixing tube (1). Mischer nach Anspruch 1, dadurch gekennzeichnet, daß der Stauring (161) drehtest mit der Mischwelle (12) verbunden ist.Mixer according to claim 1, characterized in that the retaining ring (161) rotates with the mixing shaft (12) connected is. Mischer nach Anspruch 2, dadurch gekennzeichnet, daß der Stauring (161) im Bereich des Mitnehmers (13) angeordnet ist.Mixer according to claim 2, characterized in that the retaining ring (161) is arranged in the area of the driver (13) is. Mischer nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß der Durchmesser des Staurings (161) kleiner als der Innendurchmesser des Mischrohrs (1) ist.Mixer according to claim 2 or 3, characterized in that the diameter of the storage ring (161) is smaller than the inside diameter of the mixing tube (1). Mischer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Stauring (161) in Umfangsrichtung verteilt angeordnete Schaufelplatten (162) trägt.Mixer according to one of claims 1 to 4, characterized in that that the retaining ring (161) in the circumferential direction distributed blade plates (162) carries. Mischer nach Anspruch 5, dadurch gekennzeichnet, daß die Schaufelplatten (162) auf der Oberseite und der Unterseite des Staurings (161) angeordnet sind.Mixer according to claim 5, characterized in that the blade plates (162) on the top and the Bottom of the storage ring (161) are arranged. Mischer nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß jede der Schaufelplatten (162) mit einer durch die Achse der Mischwelle (12) gehenden Axialebene einen Anstellwinkel einschließt. Mixer according to claim 5 or 6, characterized in that each of the blade plates (162) with a axial plane passing through the axis of the mixing shaft (12) includes an angle of attack. Mischer nach Anspruch 7, dadurch gekennzeichnet, daß der Anstellwinkel zwischen 30 und 70° liegt und die Außenränder der Schaufelplatten (162) deren Innenrändern, bezogen auf die Drehrichtung der Mischwelle (12), nacheilen.Mixer according to claim 7, characterized in that the angle of attack is between 30 and 70 ° and the Outer edges of the blade plates (162) their inner edges, related to the direction of rotation of the mixing shaft (12), hurry up. Mischer nach einem der Ansprüche 2 bis 8, dadurch gekennzeichnet, daß der Stauring (161) unterhalb des Mitnehmerkeils (131) des Mitnehmers (13) angeordnet ist und einen den Durchtritt des angetriebenen Endes der Welle der nachgeordneten Schnecke (21) erlaubenden Innendurchmesser hat.Mixer according to one of claims 2 to 8, characterized in that that the storage ring (161) below the Driver wedge (131) of the driver (13) arranged and the passage of the driven end allowing the shaft of the downstream worm (21) Has inside diameter.
EP99120460A 1998-11-05 1999-10-14 Mixer for making a pumpable mortar Withdrawn EP1000718A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19851077 1998-11-05
DE19851077 1998-11-05
DE19913646 1999-03-25
DE19913646A DE19913646A1 (en) 1998-11-05 1999-03-25 Mixer for the production of pumpable plasters

Publications (2)

Publication Number Publication Date
EP1000718A2 true EP1000718A2 (en) 2000-05-17
EP1000718A3 EP1000718A3 (en) 2002-06-05

Family

ID=26049981

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99120460A Withdrawn EP1000718A3 (en) 1998-11-05 1999-10-14 Mixer for making a pumpable mortar

Country Status (1)

Country Link
EP (1) EP1000718A3 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003022414A1 (en) * 2001-07-31 2003-03-20 Martin Theodor Melchior Mixing device for mixing powder substances with water
ITVI20080244A1 (en) * 2008-10-15 2010-04-16 Lomar S R L INTEGRATED STRUCTURE MACHINE FOR MIXING AND DISTRIBUTION OF PRODUCTS FOR THE CONSTRUCTION AND / OR FINISHING OF FLOORS AND / OR COVERINGS
EP2933078A1 (en) * 2014-04-14 2015-10-21 STO SE & Co. KGaA Method for mixing dry building materials which are difficult to wet for producing a plaster or mortar composition and plaster composition for producing insulating plaster
EP2933079A1 (en) * 2014-04-14 2015-10-21 STO SE & Co. KGaA Device for making dry building materials that are difficult to wet
CN114800860A (en) * 2021-01-29 2022-07-29 三一汽车制造有限公司 Control method of stirring device, stirring device and pumping equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4436430A (en) * 1979-05-17 1984-03-13 Mayer Karl M Device for the continuous mixing of a dry finished mortar
DE3809661A1 (en) * 1988-03-23 1989-10-12 Gd Anker Gmbh & Co Kg Apparatus for continuously mixing a building material
DE4113331A1 (en) * 1991-04-24 1992-10-29 Hans Winkler Combined concrete mixer and pump - has screw conveyor to drive ingredients through mixing chambers
EP0574728A1 (en) * 1992-06-19 1993-12-22 Martin Theodor Melchior Checking and transporting of a building material mixture

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4436430A (en) * 1979-05-17 1984-03-13 Mayer Karl M Device for the continuous mixing of a dry finished mortar
DE3809661A1 (en) * 1988-03-23 1989-10-12 Gd Anker Gmbh & Co Kg Apparatus for continuously mixing a building material
DE4113331A1 (en) * 1991-04-24 1992-10-29 Hans Winkler Combined concrete mixer and pump - has screw conveyor to drive ingredients through mixing chambers
EP0574728A1 (en) * 1992-06-19 1993-12-22 Martin Theodor Melchior Checking and transporting of a building material mixture

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003022414A1 (en) * 2001-07-31 2003-03-20 Martin Theodor Melchior Mixing device for mixing powder substances with water
ITVI20080244A1 (en) * 2008-10-15 2010-04-16 Lomar S R L INTEGRATED STRUCTURE MACHINE FOR MIXING AND DISTRIBUTION OF PRODUCTS FOR THE CONSTRUCTION AND / OR FINISHING OF FLOORS AND / OR COVERINGS
EP2933078A1 (en) * 2014-04-14 2015-10-21 STO SE & Co. KGaA Method for mixing dry building materials which are difficult to wet for producing a plaster or mortar composition and plaster composition for producing insulating plaster
EP2933079A1 (en) * 2014-04-14 2015-10-21 STO SE & Co. KGaA Device for making dry building materials that are difficult to wet
EP2933079B1 (en) 2014-04-14 2018-08-22 STO SE & Co. KGaA Device for making dry building materials that are difficult to wet
CN114800860A (en) * 2021-01-29 2022-07-29 三一汽车制造有限公司 Control method of stirring device, stirring device and pumping equipment
CN114800860B (en) * 2021-01-29 2023-05-12 三一汽车制造有限公司 Control method of stirring device, stirring device and pumping equipment

Also Published As

Publication number Publication date
EP1000718A3 (en) 2002-06-05

Similar Documents

Publication Publication Date Title
DE3532722C2 (en)
DE2637558A1 (en) METHOD AND DEVICE FOR GENERATING A CONTINUOUS FLOW OF MATERIAL
EP2722103A2 (en) Forced mixer with self-cleaning function and use of air inlets therefor
DE2920025A1 (en) METHOD AND DEVICE FOR CONTINUOUSLY MIXING A PRE-DRY MORTAR
EP0051224A2 (en) Process and apparatus for the continuous preparation of mortar, plaster or the like building material
DE102011006636A1 (en) Pug mill mixer i.e. concrete mixer, for use in construction site for mixing liquid, powdery and/or granular components, has vibrating device coupled to shaft and actuated to simulate shaft for enabling vibration movements
DE2358051A1 (en) METHOD AND DEVICE FOR MIXING FOUNDRY MOLDING MATERIALS
DE1244723B (en) Device for the continuous mixing of dry material with a liquid
DE2160962A1 (en) DRUM DRYER
CH652789A5 (en) DEVICE FOR MIXING AND SPRAYING WET CONCRETE.
DE4318177A1 (en) Device for the on-site production of pumpable mortar compounds
CH662517A5 (en) DEVICE FOR CONTINUOUSLY MIXING DRIED MATERIAL WITH A LIQUID AND CONVEYING THE MIXED MATERIAL.
EP1000718A2 (en) Mixer for making a pumpable mortar
DE2239852C2 (en)
EP0268991B1 (en) Device for making mixtures ready to be used from bulk goods kept ready in a silo
DE3333733A1 (en) Granulating apparatus
DE19913646A1 (en) Mixer for the production of pumpable plasters
DE2513577B2 (en) Continuously working mixer for plastic materials
DE9302136U1 (en) Mixer-dryer
EP1721717B1 (en) Device and method for making a flowable mass
DE202004020257U1 (en) mixing device
DE3543190A1 (en) Apparatus for the continuous dispersal and fine grinding of solids
EP0574728A1 (en) Checking and transporting of a building material mixture
DE2165148B2 (en) Device for mixing dry and liquid materials
EP3581264B1 (en) Device for manufacturing a flowable medium

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RIC1 Information provided on ipc code assigned before grant

Free format text: 7B 28C 5/16 A, 7B 28C 5/12 B, 7B 01F 7/16 B, 7B 01F 7/00 B

17P Request for examination filed

Effective date: 20021128

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20031222

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20040504