EP2343170A1 - Method and device for continuous mixing of materials containing clay and materials with mixing behaviour similar to clay - Google Patents

Method and device for continuous mixing of materials containing clay and materials with mixing behaviour similar to clay Download PDF

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Publication number
EP2343170A1
EP2343170A1 EP10000095A EP10000095A EP2343170A1 EP 2343170 A1 EP2343170 A1 EP 2343170A1 EP 10000095 A EP10000095 A EP 10000095A EP 10000095 A EP10000095 A EP 10000095A EP 2343170 A1 EP2343170 A1 EP 2343170A1
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EP
European Patent Office
Prior art keywords
water
mixing
clay
shaft
metering
Prior art date
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Granted
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EP10000095A
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German (de)
French (fr)
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EP2343170B1 (en
Inventor
Werner Dutschmann
Tim Dutschmann
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Deutsche Foerdertechnik GbR Tim & Werner Dutschmann
Deutsche Fordertechnik GbR Tim & Werner Dutschmann
Foerdertechnik GbR Tim & Werner Dutschmann Deutsche
Original Assignee
Deutsche Foerdertechnik GbR Tim & Werner Dutschmann
Deutsche Fordertechnik GbR Tim & Werner Dutschmann
Foerdertechnik GbR Tim & Werner Dutschmann Deutsche
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Priority to PL10000095T priority Critical patent/PL2343170T3/en
Priority to EP10000095.9A priority patent/EP2343170B1/en
Publication of EP2343170A1 publication Critical patent/EP2343170A1/en
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    • 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
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • B01F27/701—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers
    • B01F27/706—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers with all the shafts in the same receptacle
    • 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
    • B28C5/1253—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 discharging devices
    • 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
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/62—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis comprising liquid feeding, e.g. spraying 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
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • B01F27/708—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms characterised by the shape of the stirrer as a whole, i.e. of Z- or S-shape
    • 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
    • B28C5/14—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 horizontal or substantially horizontal axis
    • B28C5/146—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 horizontal or substantially horizontal axis with several stirrers with parallel shafts in one container

Definitions

  • the invention relates to a method and a device for the continuous mixing of loam and clay-like substances, the application of which is particularly suitable for the processing of clay plaster.
  • clay plaster is very popular because it ensures a pleasant indoor climate. Its processing, however, is more expensive than conventional brushing.
  • the clay For the processing of the clay this must be mixed with water.
  • the addition of water and the subsequent transport of water-mixed clay at the processing place is done so far in two steps. First, the clay is manually or mechanically mixed with water and then also manually or mechanically transported to the destination, where it is finally processed.
  • a compulsory mixer is for example in DE 102 08 798 A1 disclosed.
  • This has a mixing tub with a rotating therein agitator, which has stirring arms with sitting at the free end stirring blades. These paddles reach close to the inner wall and the bottom of the mixing tub.
  • the agitator arms of the agitator are designed as spring elements. These spring elements are particularly adapted to the fact that the mixing arms for the mixing operation maintain a sufficient rigidity, but on the other hand, can yield at clamps between the stirring blades and the tub inner wall or the tub bottom.
  • the water must here manually, for example by means of a hose to be supplied to the mix.
  • the drawback of independently mixing the clay with water and transporting / conveying the mixture is that continuous work is prevented;
  • the compulsory mixer must first be emptied before it can be refilled with loam and water.
  • the mixing process itself usually takes several minutes before sufficient mixing can be ensured.
  • a larger amount of clay in the mixing tub is regularly mixed with water in order to empty it as rarely as possible.
  • this complicates the uniform mixing of the clay-water mixture, which in turn forcibly extends the mixing time.
  • the mixed with water clay is then removed from the mixing tub and fed to a conveyor, with which the mixed with water clay is transported to its destination. If the loam-water mixture transported by a feed pump through hoses, it is necessary that the clay is mixed with plenty of water, so that the mixture is thin enough to be pumped with the pump can.
  • the invention described therein relates to a device for continuous and intensive mixing of dry mortar with water, in which a mixing container with a cylindrical mixing chamber is provided with flanges and a rotating mixer shaft with mixing tools, a dry mortar input section, a water supply device and a mixed mortar dispensing section, the mixing chamber having a separator and a coating, being axially openable, and the water supply being provided by axially spaced distribution openings; the mixer shaft comprising guide means, special mixing tools and coupling means releasably connected to a suitable drive means and / or a mortar pump.
  • the invention further relates to a device of the aforementioned type, wherein the mixer shaft of the mixer is connected via a drive shaft with a conveyor of an associated storage container and a drive means switchable.
  • this device has the disadvantage that clay-containing or clay-like substances can not be sufficiently homogeneously mixed with water.
  • the object of the invention is to provide a method and a device are available, are mixed with the clay-like and clay-like substances continuously with water so that the thickest and always consistent homogeneous clay-water mixture is formed by means of a device connected to the device Promote conveyor, whereby a continuous work is ensured.
  • the mix is fed by means of a arranged in the lower part of a storage and mixing container metering and discharge of a conveyor.
  • the method is characterized in that by simultaneous rotational movement of at least one parallel and above the metering and discharge shaft mounted side wave, the mix is loosened, mixed and kept in motion, wherein the mix is evenly distributed mixing water is added, and by the vote of water and discharge of the mix a clay-water mixture is formed almost constant consistency, which continuously and completely encloses both the metering and discharge shaft and the at least one side wave.
  • the vertical extent of the clay-water mixture is twice as large as the maximum vertical extent of the at least one side wave.
  • the device for carrying out the method according to the invention consists of a storage and mixing container, in whose lower region there is a metering and discharge shaft.
  • the device has a water supply via which water is supplied to the mix.
  • the invention is characterized by at least one side shaft arranged above the metering and discharge shaft and bent in the longitudinal direction.
  • the permanent rotational movement of the side shafts and the continuous and controllable water supply ensures that the clay-water mixture always has the optimum processing consistency.
  • the clay-water mixture is supplied by means of the metering and discharge of a conveyor, the mixture can be processed thicker than with conventional devices. This has the advantage that the loam-water mixture adheres better to walls and at the same time dries faster.
  • two side shafts are arranged above the metering and discharge shaft, which are rotated either coupled via a drive or separated from each other via two drives in rotation.
  • the side shafts are moved with the same direction of rotation or with opposite directions of rotation; the rotational speed of the side shafts is preferably identical.
  • the side shaft is a sealed at its ends tube having water outlet openings.
  • the tube is mounted on two pins, one of which serves to drive the side shaft and the other of the water supply.
  • the pin which serves to supply water, has an axial bore, which communicates with the cavity in the tube.
  • the at least one side shaft is acted upon by the water connection with water.
  • the water outlet openings are located in the rear area of the side shaft. This avoids that mixed material is pressed into the water outlet openings and this undesirable clogged.
  • the amount of water supplied to the clay is regulated by a water metering device.
  • the water for mixing the clay-water mixture is made via introduced into the walls of the storage and mixing container water nozzles.
  • the metering and discharge shaft has wing and Austrags instituten on; by rotation of the metering and discharge shaft, the loam-water mixture surrounding it is moved in the direction of the discharge opening and pushed through it out of the storage and mixing container into the conveying device (pump).
  • the shape, number and device of the wing elements depends on the mix used.
  • the clay plaster machine according to the invention is characterized by a very small size and power consumption; Compared to known solutions, the device has only about half the power consumption (about 3 to 4 KW).
  • the subject invention is also transferable in initially unobvious applications, in which materials must also be continuously mixed and promoted; as an example baking plants are mentioned.
  • Fig. 1 is the supply and mixing container 1, which is formed by two longitudinal walls 2, two transverse walls 3 and a bottom 4, can be seen.
  • the bottom 4 extends in the longitudinal direction of the sump 5, in which the metering and discharge shaft 6 with the wing elements 7 and the conveying element 8 is arranged in a parallel spaced manner.
  • the metering and discharge shaft 6 with the wing elements 7 and the conveying element 8 is arranged in a parallel spaced manner.
  • Laterally offset and above the metering and discharge shaft 6 are two side shafts 9 and 10, which are rotated by 90 ° to each other.
  • FIGS. 2 and 3 show a soupbögige, hollow side wave.
  • one or two water outlet openings 11 are introduced.
  • the wing elements 12 Within the Arches of the side shaft are the wing elements 12.
  • the side shaft is acted upon with water; the water connection 13 is in turn supplied via the water connection line 14 and the water metering device 15 with the mixing water.
  • Fig. 1 are the drive 16 for the discharge shaft 6 and two drives 17, each set a side shaft 6 in rotation, shown.
  • the mixed with water mixed material of the conveyor 18 (pump) is supplied.
  • the arrow 19 illustrates the conveying direction of the mixed material.
  • Fig. 3 shows the device in front view.
  • the horizontal dashed line marks the contour line 20 of the clay-water mixture.

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

Abstract

The method involves feeding a mixture by a dosing- and discharge shaft (6) of a conveying unit (16), where the dosing- and discharge shaft is arranged in lower area of a supplying- and mixing container. The mixture is mixed by a side shaft (9) that is supported parallel and above the dosing- and discharge shaft. The mixture is added evenly with mixing water in a distributed manner. An independent claim is also included for a device for executing a continuous mixing method.

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum kontinuierlichen Mischen von Lehm und lehmähnlichen Stoffen, deren Anwendung sich insbesondere für die Verarbeitung von Lehmputzen anbietet.The invention relates to a method and a device for the continuous mixing of loam and clay-like substances, the application of which is particularly suitable for the processing of clay plaster.

Im Wohnungsbau gewinnt Lehm eine zunehmende Bedeutung als ökologischer Baustoff. Insbesondere ist Lehmputz sehr beliebt, weil er für ein angenehmes Raumklima sorgt. Seine Verarbeitung ist jedoch gegenüber konventionellen Putzen aufwendiger.In residential construction, clay is becoming increasingly important as an ecological building material. In particular, clay plaster is very popular because it ensures a pleasant indoor climate. Its processing, however, is more expensive than conventional brushing.

Für die Verarbeitung des Lehms muss dieser mit Wasser vermischt werden. Das Versetzen mit Wasser und der anschließende Transport des mit Wasser versetzten Lehms an den Verarbeitungsort erfolgt bisher in zwei Arbeitsschritten. Zuerst wird der Lehm manuell oder maschinell mit Wasser vermischt und anschließend ebenfalls manuell oder maschinell an den Bestimmungsort befördert, wo er schließlich verarbeitet wird.For the processing of the clay this must be mixed with water. The addition of water and the subsequent transport of water-mixed clay at the processing place is done so far in two steps. First, the clay is manually or mechanically mixed with water and then also manually or mechanically transported to the destination, where it is finally processed.

Für das maschinelle Vermischen des Lehms mit Wasser werden üblicherweise Zwangsmischer verwendet.For mechanical mixing of the clay with water usually compulsory mixers are used.

Ein Zwangsmischer ist beispielsweise in DE 102 08 798 A1 offenbart. Dieser weist einen Mischbottich mit einem darin drehenden Rührwerk auf, welches Rührarme mit an deren freien Ende sitzenden Rührschaufeln aufweist. Diese Rührschaufeln reichen bis nahe an die Innenwand und den Boden des Mischbottichs heran. Um im Hinblick auf den Verschleiß und den Betriebslärm ein Klemmen von im Mischgut befindlichen Festkörpern zwischen dem Bottich und dem Rührwerk zu vermeiden, sind die Rührarme des Rührwerks als Federelemente ausgebildet. Diese Federelemente sind in besonderer Weise daran angepasst, dass die Rührarme für den Mischbetrieb eine ausreichende Steifigkeit behalten, andererseits jedoch bei Klemmungen zwischen den Rührschaufeln und der Bottich-Innenwandung bzw. dem Bottich-Boden nachgeben können. Das Wasser muss hier manuell, beispielsweise mittels eines Schlauches, dem Mischgut zugeführt werden.A compulsory mixer is for example in DE 102 08 798 A1 disclosed. This has a mixing tub with a rotating therein agitator, which has stirring arms with sitting at the free end stirring blades. These paddles reach close to the inner wall and the bottom of the mixing tub. In order to avoid jamming of solids in the mix between the tub and the agitator with regard to wear and operating noise, the agitator arms of the agitator are designed as spring elements. These spring elements are particularly adapted to the fact that the mixing arms for the mixing operation maintain a sufficient rigidity, but on the other hand, can yield at clamps between the stirring blades and the tub inner wall or the tub bottom. The water must here manually, for example by means of a hose to be supplied to the mix.

Der Nachteil des unabhängigen Mischens des Lehms mit Wasser und dem/der Transport/Förderung des Gemisches besteht darin, dass ein kontinuierliches Arbeiten verhindert wird; es muss der Zwangsmischer erst entleert werden, bevor er erneut mit Lehm und Wasser befüllt werden kann. Der Mischvorgang selbst dauert üblicherweise mehrere Minuten, bevor eine ausreichende Durchmischung sichergestellt werden kann. Darüber hinaus wird regelmäßig eine größere Menge an Lehm im Mischbottich mit Wasser vermengt, um diesen so selten wie möglich entleeren zu müssen. Dies erschwert jedoch die gleichmäßige Durchmischung des Lehm-Wassergemisches, wodurch sich wiederum die Mischdauer zwangsweise verlängert.The drawback of independently mixing the clay with water and transporting / conveying the mixture is that continuous work is prevented; The compulsory mixer must first be emptied before it can be refilled with loam and water. The mixing process itself usually takes several minutes before sufficient mixing can be ensured. In addition, a larger amount of clay in the mixing tub is regularly mixed with water in order to empty it as rarely as possible. However, this complicates the uniform mixing of the clay-water mixture, which in turn forcibly extends the mixing time.

Der mit Wasser vermischte Lehm wird anschließend dem Mischbottich entnommen und einer Fördereinrichtung zugeführt, mit der der mit Wasser vermischte Lehm an seinen Bestimmungsort befördert wird. Wird das Lehm-Wassergemisch mittels einer Förderpumpe durch Schlauchleitungen transportiert, so ist es notwendig, dass der Lehm mit reichlich Wasser angemischt wird, damit das Gemisch dünnflüssig genug ist, um mit der Pumpe gefördert werden zu können.The mixed with water clay is then removed from the mixing tub and fed to a conveyor, with which the mixed with water clay is transported to its destination. If the loam-water mixture transported by a feed pump through hoses, it is necessary that the clay is mixed with plenty of water, so that the mixture is thin enough to be pumped with the pump can.

Bei dem Einsatz von zwei getrennt arbeitenden Maschinen für das Mischen und den Transport ist zwangsläufig nachteilig, dass zwei eigenständige Maschinen betrieben, gereinigt und gewartet werden müssen. Weiterhin benötigt der Lehm, da er sehr dünnflüssig angemischt wird, lange Zeit zum Trocknen. Weiterhin besteht die Gefahr, dass er, wenn er auf Wänden dick aufgetragen wird, wegfließt.The use of two separate machines for mixing and transport inevitably has the disadvantage that two independent machines must be operated, cleaned and maintained. Furthermore, since the clay is mixed very thinly, it takes a long time to dry. Furthermore, there is a risk that when it is applied thickly on walls, it flows away.

Darüber hinaus muss bei jeder Füllung des Mischers darauf geachtet werden, dass das Mischungsverhältnis zwischen Lehm- und Wassermanege stimmt. Abweichungen im Mischungsverhältnis führen zu einer variierenden Konsistenz des Lehm-Wassergemisches zwischen den einzelnen Mischerfüllungen.In addition, care must be taken with each filling of the mixer that the mixing ratio between loam and Wassermanege is right. Deviations in the mixing ratio lead to a varying consistency of the clay-water mixture between the individual mixer fillings.

Vorrichtungen, die den vorgenannten Nachteil, dass nicht kontinuierlich Mischgut angemischt werden kann und dass unterschiedliche Maschinen für das Anmischen und Fördern des Mischgutes benötigt werden, beseitigen, sind beispielsweise durch die in DE 10 2007 030 458 A1 offenbarte Erfindung bekannt. Die dort beschriebene Erfindung betrifft eine Einrichtung zum kontinuierlichen und intensiven Mischen von Trockenmörtel mit Wasser, bei der ein Mischbehälter mit einer zylindrischen Mischkammer mit Flanschen und einer rotierenden Mischerwelle mit Mischwerkzeugen, einem Eingabebereich für Trockenmörtel, einer Wasserzuführeinrichtung und einem Ausgabebereich für gemischten Mörtel vorgesehen ist, wobei die Mischkammer eine Trenneinrichtung und eine Beschichtung aufweist, axial zu öffnen ist und die Wasserzuführung durch in axialer Erstreckung angeordnete Verteileröffnungen erfolgt und wobei die Mischerwelle Leiteinrichtungen, spezielle Mischwerkzeuge und Kupplungseinrichtungen aufweist, die mit einer geeigneten Antriebseinrichtung und/oder einer Mörtelpumpe in lösbarer Verbindung stehen. Die Erfindung betrifft ferner eine Einrichtung der vorgenannten Art, bei welcher die Mischerwelle des Mischers über eine Antriebswelle mit einer Fördereinrichtung eines zugehörigen Vorratsbehälters und einer Antriebseinrichtung schaltbar verbunden ist.Devices that eliminate the above-mentioned disadvantage that mixing material can not be mixed continuously and that different machines are required for mixing and conveying the mixed material are eliminated, for example, by the in DE 10 2007 030 458 A1 disclosed invention. The invention described therein relates to a device for continuous and intensive mixing of dry mortar with water, in which a mixing container with a cylindrical mixing chamber is provided with flanges and a rotating mixer shaft with mixing tools, a dry mortar input section, a water supply device and a mixed mortar dispensing section, the mixing chamber having a separator and a coating, being axially openable, and the water supply being provided by axially spaced distribution openings; the mixer shaft comprising guide means, special mixing tools and coupling means releasably connected to a suitable drive means and / or a mortar pump. The invention further relates to a device of the aforementioned type, wherein the mixer shaft of the mixer is connected via a drive shaft with a conveyor of an associated storage container and a drive means switchable.

Dieser Vorrichtung haftet jedoch der Nachteil an, dass sich mit ihr lehmhaltige oder lehmähnliche Stoffe mit Wasser nicht ausreichend homogen mischen lassen.However, this device has the disadvantage that clay-containing or clay-like substances can not be sufficiently homogeneously mixed with water.

Aufgabe der Erfindung ist es, ein Verfahren und eine Vorrichtung zur Verfügung zu stellen, mit der lehmhaltige und lehmähnliche Stoffe kontinuierlich so mit Wasser vermischt werden, dass eine möglichst dickflüssige und stets gleichbleibend homogene Lehm-Wassermischung entsteht, die sich mittels einer an der Vorrichtung angeschlossenen Fördereinrichtung fördern lässt, wodurch ein kontinuierliches Arbeiten sichergestellt wird.The object of the invention is to provide a method and a device are available, are mixed with the clay-like and clay-like substances continuously with water so that the thickest and always consistent homogeneous clay-water mixture is formed by means of a device connected to the device Promote conveyor, whereby a continuous work is ensured.

Erfindungsgemäß wird die Aufgabe wird durch die Merkmale der unabhängigen Ansprüche 1 und 3 gelöst; Vorteilhafte Ausgestaltungen des Verfahrens und der Vorrichtung sind in den abhängigen Unteransprüchen beschrieben.According to the invention the object is solved by the features of independent claims 1 and 3; Advantageous embodiments of the method and the device are described in the dependent subclaims.

Gemäß Anspruch 1 wird bei dem erfindungsgemäßen Verfahren zum Mischen von lehmhaltigen und lehmähnlichen Stoffen mit Wasser das Mischgut mittels einer im unteren Bereich eines Vorrats- und Mischbehälters angeordneten Dosier- und Austragswelle einer Fördereinrichtung zugeführt wird. Das Verfahren ist dadurch charakterisiert, dass durch gleichzeitige Drehbewegung von wenigstens einer parallel und oberhalb der Dosier- und Austragswelle gelagerten Seitenwelle das Mischgut aufgelockert, gemischt und in Bewegung gehalten wird, wobei dem Mischgut gleichmäßig verteilt Anmachwasser zugegeben wird, und durch die Abstimmung von Wasserzugabe und Austrag des Mischgutes eine Lehm-Wassermischung nahezu gleich bleibender Konsistenz gebildet wird, die sowohl die Dosier- und Austragswelle als auch die zumindest eine Seitenwelle fortwährend und vollständig umschließt.According to claim 1, in the inventive method for mixing clay-like and clay-like materials with water, the mix is fed by means of a arranged in the lower part of a storage and mixing container metering and discharge of a conveyor. The method is characterized in that by simultaneous rotational movement of at least one parallel and above the metering and discharge shaft mounted side wave, the mix is loosened, mixed and kept in motion, wherein the mix is evenly distributed mixing water is added, and by the vote of water and discharge of the mix a clay-water mixture is formed almost constant consistency, which continuously and completely encloses both the metering and discharge shaft and the at least one side wave.

Bevorzugt ist die vertikale Ausdehnung der Lehm-Wassermischung doppelt so groß wie die größtmögliche vertikale Erstreckung der wenigstens einen Seitenwelle.Preferably, the vertical extent of the clay-water mixture is twice as large as the maximum vertical extent of the at least one side wave.

Die Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens besteht aus einem Vorrats- und Mischbehälter, in dessen unteren Bereich sich eine Dosier- und Austragswelle befindet. Zudem besitzt die Vorrichtung eine Wasserzuführeinrichtung, über die dem Mischgut Wasser zugeführt wird. Gekennzeichnet ist die Erfindung durch zumindest eine oberhalb der Dosier- und Austragswelle angeordneten und in Längsrichtung gebogene Seitenwelle.The device for carrying out the method according to the invention consists of a storage and mixing container, in whose lower region there is a metering and discharge shaft. In addition, the device has a water supply via which water is supplied to the mix. The invention is characterized by at least one side shaft arranged above the metering and discharge shaft and bent in the longitudinal direction.

Durch die permanente Drehbewegung der Seitenwellen und die kontinuierliche und regelbare Wasserzuführung wird erreicht, dass das Lehm-Wassergemisch stets die optimale Verarbeitungskonsistenz besitzt.The permanent rotational movement of the side shafts and the continuous and controllable water supply ensures that the clay-water mixture always has the optimum processing consistency.

Durch den Austrag von mit Wasser vermischtem Mischgut durch die Austragsöffnung rutscht von oben her stets frisches, trockenes Mischgut zu der zumindest einen Seitenwelle nach. Durch die auf die Austragsgeschwindigkeit abgestimmte Wasserzuführung wird sichergestellt, dass das Lehm-Wassergemisch stets eine gleichbleibende Konsistenz aufweist.By the discharge of mixed with water mixed material through the discharge always slides from above fresh, dry mix to the at least one side wave. The water supply adapted to the discharge speed ensures that the clay / water mixture always has a consistent consistency.

Da das Lehm-Wassergemisch mit Hilfe der Dosier- und Austragswelle einer Fördereinrichtung zugeführt wird, kann das Gemisch dickflüssiger verarbeitet werden, als mit herkömmlichen Vorrichtungen. Dies hat den Vorteil, dass das Lehm-Wassergemisch besser an Wänden haftet und zugleich schneller durchtrocknet.Since the clay-water mixture is supplied by means of the metering and discharge of a conveyor, the mixture can be processed thicker than with conventional devices. This has the advantage that the loam-water mixture adheres better to walls and at the same time dries faster.

Durch den kontinuierlichen Austrag des Lehm-Wassergemisches aus dem Vorrats- und Mischbehälter ist es möglich, den Vorratsbehälter mit trockenem Lehm zu befüllen, ohne auf die Füllhöhe achten zu müssen. Dennoch hat das mit Wasser vermischte Mischgut stets die optimale Verarbeitungskonsistenz.Due to the continuous discharge of the clay-water mixture from the storage and mixing container, it is possible to fill the reservoir with dry clay, without having to pay attention to the filling level. Nevertheless, the mix mixed with water always has the optimum processing consistency.

In einer weiteren und besonders Vorteilhaften Ausgestaltungsvariante sind oberhalb der Dosier- und Austragswelle zwei Seitenwellen angeordnet, die entweder gekoppelt über einen Antrieb oder getrennt voneinander über zwei Antriebe in Drehung versetzt werden. In Abhängigkeit des verwendeten Mischguts werden die Seitenwellen mit gleichem Drehsinn oder mit entgegen gesetztem Drehsinn bewegt; die Drehgeschwindigkeit der Seitenwellen ist bevorzugt identisch.In a further and particularly advantageous embodiment variant, two side shafts are arranged above the metering and discharge shaft, which are rotated either coupled via a drive or separated from each other via two drives in rotation. Depending on the mix used, the side shafts are moved with the same direction of rotation or with opposite directions of rotation; the rotational speed of the side shafts is preferably identical.

Als besonders vorteilhaft erweist es sich, wenn die Seitenwelle gleichzeitig die Wasserzuführeinrichtung ist. Hierbei ist die Seitenwelle ein an seinen Enden verschlossenes Rohr, das Wasseraustrittsöffnungen aufweist. Das Rohr ist auf zwei Zapfen gelagert, wovon einer dem Antrieb der Seitenwelle und der andere der Wasserzuführung dient. Der Zapfen, der der Wasserzuführung dient, ist weist eine axiale Bohrung auf, die mit dem Hohlraum im Rohr in Verbindung steht. Bei Betrieb der Vorrichtung wird die zumindest eine Seitenwelle über den Wasseranschluss mit Wasser beaufschlagt. Über die in der Seitenwelle eingebrachten Wasseraustrittsöffnungen tritt das Wasser aus dieser aus und befeuchtet das Mischgut. Idealerweise befinden sich die Wasseraustrittsöffnungen, bezogen auf die Drehrichtung der Seitenwelle, im rückwärtigen Bereich der Seitenwelle. Damit wird vermieden, dass Mischgut in die Wasseraustrittsöffnungen gedrückt wird und diese unerwünscht verstopft. Die Wassermenge, die dem Lehm zugeführt wird, wird über eine Wasserdosiereinrichtung reguliert.It proves to be particularly advantageous if the side shaft is at the same time the water supply device. Here, the side shaft is a sealed at its ends tube having water outlet openings. The tube is mounted on two pins, one of which serves to drive the side shaft and the other of the water supply. The pin, which serves to supply water, has an axial bore, which communicates with the cavity in the tube. During operation of the device, the at least one side shaft is acted upon by the water connection with water. About the introduced in the side shaft water outlet openings, the water exits from this and moisten the mix. Ideally, the water outlet openings, based on the direction of rotation of the side shaft, are located in the rear area of the side shaft. This avoids that mixed material is pressed into the water outlet openings and this undesirable clogged. The amount of water supplied to the clay is regulated by a water metering device.

In einer weiteren Ausgestaltungsvariante der erfindungsgemäßen Vorrichtung wird das Wasser zum Anmischen des Lehm-Wassergemisches über in die Wände des Vorrats- und Mischbehälters eingebrachte Wasserdüsen vorgenommen.In a further embodiment variant of the device according to the invention, the water for mixing the clay-water mixture is made via introduced into the walls of the storage and mixing container water nozzles.

Die Dosier- und Austragswelle weist Flügel- und Austragselementen auf; durch Drehung der Dosier- und Austragswelle wird das sie umgebende Lehm-Wassergemisch in Richtung der Austragsöffnung bewegt und durch diese hindurch aus dem Vorrats- und Mischbehälter hinaus in die Fördereinrichtung (Pumpe) gedrückt. Die Form, Anzahl und Vorrichtung der Flügelelemente ist abhängig von dem verwendeten Mischgut.The metering and discharge shaft has wing and Austragselementen on; by rotation of the metering and discharge shaft, the loam-water mixture surrounding it is moved in the direction of the discharge opening and pushed through it out of the storage and mixing container into the conveying device (pump). The shape, number and device of the wing elements depends on the mix used.

Mit dem erfindungsgemäßen Verfahren und der zugehörigen Vorrichtung wird in besonders vorteilhafter Weise ein kontinuierliches Arbeiten - Befüllen des Vorrats- und Mischbehälters mit Lehm, Mischen des Lehms mit Wasser und Fördern und Verarbeiten des Mischgutes - mit nur einer Maschine (monomaschinelle Verarbeitung) ermöglicht. Zudem wird sichergestellt, dass das Lehm Wassergemisch eine gleichbeleibende Konsistenz aufweist.With the method and the associated apparatus according to the invention a continuous working - filling the storage and mixing container with clay, mixing the clay with water and conveying and processing of the mix - with only one machine (monomachine processing) is possible in a particularly advantageous manner. It also ensures that the clay / water mixture has a consistent consistency.

Darüber hinaus zeichnet sich die erfindungsgemäße Lehmputzmaschine durch eine sehr geringe Baugröße und Leistungsaufnahme aus; im Vergleich zu bekannten Lösungen hat die Vorrichtung eine nur in etwa halb so große Leistungsaufnahme (ca. 3 bis 4 KW).In addition, the clay plaster machine according to the invention is characterized by a very small size and power consumption; Compared to known solutions, the device has only about half the power consumption (about 3 to 4 KW).

Darüber hinaus ist der Erfindungsgegenstand auch in zunächst nicht naheliegenden Anwendungsbereiche übertragbar, in denen Stoffe aber auch kontinuierlich gemischt und gefördert werden müssen; als Beispiel seien Backbetriebe genannt.In addition, the subject invention is also transferable in initially unobvious applications, in which materials must also be continuously mixed and promoted; as an example baking plants are mentioned.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels mit den Figuren 1 bis 5 erläutert; hierbei zeigt:

Fig 1:
die Vorrichtung in Draufsicht;
Fig 2:
eine Seitenwelle im Längsschnitt;
Fig 3:
eine Seitenwelle in Seitenansicht;
Fig. 4:
die Vorrichtung in Rückansicht;
Fig. 5:
die Vorrichtung in Vorderansicht.
The invention will be described below with reference to an embodiment with the FIGS. 1 to 5 explains; this shows:
Fig. 1:
the device in plan view;
Fig. 2:
a side wave in longitudinal section;
Fig. 3:
a side wave in side view;
4:
the device in rear view;
Fig. 5:
the device in front view.

Aus Fig. 1 ist der Vorrats- und Mischbehälters 1, der von zwei Längswänden 2, zwei Querwänden 3 und einem Boden 4 gebildet wird, ersichtlich. Im Boden 4 erstreckt sich in Längsrichtung der Sumpf 5, in dem parallel beabstandet die Dosier- und Austragswelle 6 mit den Flügelelementen 7 und dem Förderelement 8 angeordnet ist. Seitlich versetzt und oberhalb der Dosier- und Austragswelle 6 befinden sich zwei Seitenwellen 9 und 10, welche um 90° zueinander verdreht sind.Out Fig. 1 is the supply and mixing container 1, which is formed by two longitudinal walls 2, two transverse walls 3 and a bottom 4, can be seen. In the bottom 4 extends in the longitudinal direction of the sump 5, in which the metering and discharge shaft 6 with the wing elements 7 and the conveying element 8 is arranged in a parallel spaced manner. Laterally offset and above the metering and discharge shaft 6 are two side shafts 9 and 10, which are rotated by 90 ° to each other.

Die Figuren 2 und 3 zeigen eine zweibögige, hohle Seitenwelle. In den Bögen sind eine beziehungsweise zwei Wasseraustrittsöffnungen 11 eingebracht. Innerhalb der Bögen der Seitenwelle befinden sich die Flügelelemente 12. Über den Wasseranschluss 13 wird die Seitenwelle mit Wasser beaufschlagt; der Wasseranschluss 13 wird wiederum über die Wasseranschlussleitung 14 und die Wasserdosiereinrichtung 15 mit dem Anmachwasser versorgt.The FIGS. 2 and 3 show a zweibögige, hollow side wave. In the arches one or two water outlet openings 11 are introduced. Within the Arches of the side shaft are the wing elements 12. About the water connection 13, the side shaft is acted upon with water; the water connection 13 is in turn supplied via the water connection line 14 and the water metering device 15 with the mixing water.

Weiterhin sind in Fig. 1 sind der Antrieb 16 für die Austragswelle 6 und zwei Antriebe 17, die jeweils eine Seitenwelle 6 in Drehung versetzen, dargestellt. Durch Drehung der Dosier- und Austragswelle 6 wird das mit Wasser vermischte Mischgut der Fördereinrichtung 18 (Pumpe) zugeführt. Der Pfeil 19 verdeutlicht die Förderichtung des Mischgutes.Furthermore, in Fig. 1 are the drive 16 for the discharge shaft 6 and two drives 17, each set a side shaft 6 in rotation, shown. By rotation of the metering and discharge shaft 6, the mixed with water mixed material of the conveyor 18 (pump) is supplied. The arrow 19 illustrates the conveying direction of the mixed material.

Fig. 3 zeigt die Vorrichtung in Vorderansicht. Die horizontal verlaufende gestrichelte Linie markiert die Höhenlinie 20 des Lehm-Wassergemischs. Fig. 3 shows the device in front view. The horizontal dashed line marks the contour line 20 of the clay-water mixture.

In Fig. 4 ist die Lehmputzmaschine - wie beschrieben - zu sehen; auf die Darstellung der Wasseranschlussleitung 14, der Wasserdosiereinrichtung 15 und des Antriebs 16 wurde - der Übersichtlichkeit wegen - verzichtet.In Fig. 4 you can see the clay plastering machine as described; on the representation of the water supply line 14, the Wasserdosiereinrichtung 15 and the drive 16 was - for clarity - waived.

Liste der verwendeten BezugszeichenList of reference numbers used

11
Vorrats- und MischbehälterStorage and mixing container
22
Längswandlongitudinal wall
33
Querwandpartition
44
Bodenground
55
Sumpfswamp
66
Dosier- und AustragswelleDosing and discharge shaft
77
Flügelelementwing element
88th
Förderelementimpeller
99
Erste SeitenwelleFirst page wave
1010
Zweite SeitenwelleSecond side wave
1111
WasseraustrittsöffnungWater outlet
1212
Flügelelementwing element
1313
Wasseranschlussmains water supply
1414
WasseranschlussleitungWater supply line
1515
WasserdosiereinrichtungWasserdosiereinrichtung
1616
FördereinrichtungConveyor
1717
Förderrichtungconveying direction
1818
Antrieb AustragswelleDrive output shaft
1919
Antrieb SeitenwelleDrive side shaft
2020
Höhenliniecontour

Claims (14)

Verfahren zum kontinuierlichen Mischen von lehmhaltigen Stoffen und Materialien mit lehmähnlichen Mischverhalten mit Wasser, bei dem das Mischgut mittels einer im unteren Bereich eines Vorrats- und Mischbehälters (1) angeordneten Dosier- und Austragswelle (6) einer Fördereinrichtung (16) zugeführt wird, dadurch gekennzeichnet, dass durch wenigstens eine parallel und oberhalb der Dosier- und Austragswelle (8) gelagerte Seitenwelle (9) das Mischgut aufgelockert, gemischt und in Bewegung gehalten wird, wobei dem Mischgut gleichmäßig verteilt Anmachwasser zugegeben wird, und durch die Abstimmung von Wasserzugabe und Austrag des Mischgutes eine Lehm-Wassermischung nahezu gleich bleibender Konsistenz gebildet wird, die sowohl die Dosier- und Austragswelle (8) als auch die zumindest eine Seitenwelle (9) fortwährend und vollständig umschließt.Process for the continuous mixing of clay-containing materials and materials with clay-like mixing behavior with water, in which the mix is fed to a conveyor (16) by means of a metering and discharge shaft (6) arranged in the lower region of a storage and mixing container (1), characterized in that the mixing material is loosened, mixed and kept in motion by at least one side shaft (9) mounted parallel to and above the metering and discharge shaft (8), mixing water being added to the mix uniformly distributed, and by the coordination of addition of water and discharge of the water Mischgutes a clay-water mixture is almost constant consistency is formed, which surrounds both the metering and discharge shaft (8) and the at least one side shaft (9) continuously and completely. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die vertikale Ausdehnung der Lehm-Wassermischung doppelt so groß ist wie die größtmögliche vertikale Erstreckung der wenigstens einen Seitenwelle.A method according to claim 1, characterized in that the vertical extent of the clay-water mixture is twice as large as the maximum vertical extent of the at least one side wave. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1 mit einer im unteren Bereich eines Vorrats- und Mischbehälter (1) befindlichen Dosier- und Austragswelle (6) und zumindest einer Wasserzuführeinrichtung, dadurch gekennzeichnet, dass parallel und oberhalb der Dosier- und Austragswelle (6) zumindest eine Seitenwelle (8), die in Längsrichtung gebogen ist, angeordnet ist.Apparatus for carrying out the method according to claim 1 with a metering and discharge shaft (6) located in the lower region of a supply and mixing container (1) and at least one water supply device, characterized in that at least parallel to and above the metering and discharge shaft (6) a side shaft (8) which is bent in the longitudinal direction, is arranged. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die dem Mischen des Mischguts dienende gebogene Seitenwelle (9) gleichzeitig die Wasserzuführeinrichtung ist, die als ein an seinen Enden verschlossenes Rohr mit Wasseraustrittsöffnungen (11) ausgeführt ist, das auf zwei mit ihm fest verbundenen Zapfen gelagert ist, wobei ein Zapfen zylindrisch durchbrochen ist und als Wasseranschluss (13) dient und der andere die Aufnahme für den Antrieb der Seitenwelle darstellt.Apparatus according to claim 3, characterized in that the mixing of the mixture serving curved side shaft (9) is simultaneously the water supply, which is designed as a closed at its ends tube with water outlet openings (11) mounted on two fixedly connected to it pin is, with a pin is cylindrically perforated and serves as a water connection (13) and the other the recording represents for the drive of the side wave. Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass die Seitenwelle (9) gleich große wellenförmige Abschnitte aufweist.Apparatus according to claim 3 or 4, characterized in that the side shaft (9) has the same size wavy sections. Vorrichtung nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass die Seitenwelle (9) mäanderförmig ausgebildet ist.Device according to one of claims 3 to 5, characterized in that the side shaft (9) is formed meander-shaped. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Wasseraustrittsöffnungen (11) bezogen auf die Drehrichtung der Seitenwelle (9) im rückwärtigen Bereich der Bögen eingebracht sind.Apparatus according to claim 4, characterized in that the water outlet openings (11) are introduced in relation to the direction of rotation of the side shaft (9) in the rear region of the sheets. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Wasserzuführeinrichtung zumindest eine in einer der Behälterwände (2; 3) eingebrachte Wasserdüse ist.Apparatus according to claim 3, characterized in that the water supply means is at least one in one of the container walls (2; 3) introduced water nozzle. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Wasserzuführeinrichtung ein einseitig verschlossenes, sich drehendes Rohr mit wenigstens einer Wasseraustrittsöffnung (11) ist.Apparatus according to claim 3, characterized in that the water supply device is a unilaterally closed, rotating tube with at least one water outlet opening (11). Vorrichtung nach einem der Ansprüche 3 bis 9, dadurch gekennzeichnet, dass die wenigstens eine Seitenwelle (9) sowohl zur Dosiereinrichtung, als auch zur Längswandung (2) des Vorrats- und Mischbehälters (1) einen Abstand von mindestens 1 mm aufweist.Device according to one of claims 3 to 9, characterized in that the at least one side shaft (9) both to the metering device, as well as to the longitudinal wall (2) of the storage and mixing container (1) has a distance of at least 1 mm. Vorrichtung nach einem der Ansprüche 3 bis 10, dadurch gekennzeichnet, dass der Wasseranschluss (13) über eine flexible oder starre Wasseranschlussleitung (14) mit einer Wasserdosiereinrichtung (15) für das Anmachwasser verbunden ist.Device according to one of claims 3 to 10, characterized in that the water connection (13) via a flexible or rigid water connection line (14) is connected to a Wasserdosiereinrichtung (15) for the mixing water. Vorrichtung nach einem der Ansprüche 3 bis 11, dadurch gekennzeichnet, dass an der Seitenwelle (9) wenigstens ein Flügelelement (12), das als Mischwerkzeug dient, angebracht ist.Device according to one of claims 3 to 11, characterized in that on the side shaft (9) at least one wing element (12), which serves as a mixing tool, is mounted. Vorrichtung nach einem der Ansprüche 3 bis 12, dadurch gekennzeichnet, dass parallel zu und oberhalb der Dosier- und Austragswelle (6) und ebenfalls parallel zu der ersten Seitenwelle (9) eine weitere Seitenwelle (10) angeordnet ist.Device according to one of claims 3 to 12, characterized in that parallel to and above the metering and discharge shaft (6) and also parallel to the first side shaft (9), a further side shaft (10) is arranged. Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, dass sich die Seitenwellen (9; 10) mit gleicher Geschwindigkeit drehen.Apparatus according to claim 13, characterized in that the side shafts (9; 10) rotate at the same speed.
EP10000095.9A 2010-01-08 2010-01-08 Method and device for continuous mixing of materials containing clay and materials with mixing behaviour similar to clay Active EP2343170B1 (en)

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CN108858754A (en) * 2018-07-25 2018-11-23 陈婷 A kind of construction of road and bridge concrete process equipment
CN109176879A (en) * 2018-08-15 2019-01-11 嘉善中嘉化工有限公司 A kind of multifunctional mixer
CN113926331A (en) * 2021-11-02 2022-01-14 山东金格瑞机械有限公司 Feed making device
CN114534618A (en) * 2022-04-25 2022-05-27 东营华亚国联航空燃料有限公司 Improve online filling device of antistatic agent accurate volume
US11986979B2 (en) 2021-09-24 2024-05-21 Aaron Engineered Process Equipment, Inc. Double arm mixer extruder

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CN108858754A (en) * 2018-07-25 2018-11-23 陈婷 A kind of construction of road and bridge concrete process equipment
CN109176879A (en) * 2018-08-15 2019-01-11 嘉善中嘉化工有限公司 A kind of multifunctional mixer
US11986979B2 (en) 2021-09-24 2024-05-21 Aaron Engineered Process Equipment, Inc. Double arm mixer extruder
CN113926331A (en) * 2021-11-02 2022-01-14 山东金格瑞机械有限公司 Feed making device
CN114534618A (en) * 2022-04-25 2022-05-27 东营华亚国联航空燃料有限公司 Improve online filling device of antistatic agent accurate volume

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