EP1914056B1 - Device for the continuous and intensive mixing of dry mortar - Google Patents

Device for the continuous and intensive mixing of dry mortar Download PDF

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Publication number
EP1914056B1
EP1914056B1 EP07018568A EP07018568A EP1914056B1 EP 1914056 B1 EP1914056 B1 EP 1914056B1 EP 07018568 A EP07018568 A EP 07018568A EP 07018568 A EP07018568 A EP 07018568A EP 1914056 B1 EP1914056 B1 EP 1914056B1
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EP
European Patent Office
Prior art keywords
mixing
mixing chamber
shaft
mortar
flange
Prior art date
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Active
Application number
EP07018568A
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German (de)
French (fr)
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EP1914056A3 (en
EP1914056A2 (en
Inventor
Werner Dutschmann
Tim Dutschmann
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Individual
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Individual
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Publication of EP1914056A3 publication Critical patent/EP1914056A3/en
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    • 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
    • B28C5/142—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 the stirrer shaft carrying screw-blades
    • B28C5/143—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 the stirrer shaft carrying screw-blades for materials flowing continuously through the mixing device
    • 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
    • B01F35/10—Maintenance of 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
    • B01F27/05—Stirrers
    • B01F27/051—Stirrers characterised by their elements, materials or mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/051—Stirrers characterised by their elements, materials or mechanical properties
    • B01F27/053—Stirrers characterised by their elements, materials or mechanical properties characterised by their materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0722—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis perpendicular with respect to the rotating axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0723—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis oblique with respect to the rotating axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0724—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis directly mounted on the rotating axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0726—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis having stirring elements connected to the stirrer shaft each by a single radial rod, other than open frameworks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
    • B01F27/192—Stirrers with two or more mixing elements mounted in sequence on the same axis with dissimilar elements
    • 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
    • B01F27/2121—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by their rotating shafts composed of interconnected parts
    • 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
    • B01F27/61—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis about an inclined axis
    • 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
    • B01F27/707—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms the paddles co-operating, e.g. intermeshing, with elements on the receptacle wall
    • 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
    • B01F35/45—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor
    • B01F35/451—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor by rotating them about an axis parallel to the plane of the opening
    • 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
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71775—Feed mechanisms characterised by the means for feeding the components to the mixer using helical screws
    • 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
    • B01F35/75—Discharge mechanisms
    • B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
    • B01F35/75455—Discharge mechanisms characterised by the means for discharging the components from the mixer using a rotary discharge means, e.g. a screw beneath the 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
    • B28C5/1292—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
    • 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
    • B28C5/145—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 mixing chambers arranged one after the other
    • 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
    • B28C5/148—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 the stirrer shaft carrying a plurality of radially extending mixing bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/12—Supplying or proportioning liquid ingredients

Definitions

  • the invention relates to a device for continuous and intensive mixing of dry mortar according to claim 1.
  • the invention can be used for the continuous and intensive mixing of difficult-to-mix dry mortar with water to produce a sprayable mortar composition, which is used for example for the production of plaster layers by means of a corresponding injection device.
  • the invention is also applicable to mixing devices for mixing flowable concrete mortar or floating screed, for example for the production of floor surfaces.
  • Mixing devices or mixers are used, for example, in the mechanized production of corresponding plaster layers on a respective wall surface both in the interior of buildings and on outer wall surfaces, wherein a respective amount of wet, ready mixed mortar by means of a corresponding mortar pump through a pipe or hose assembly to the respective Application surface for the plaster layer is pumped.
  • the thoroughly mixed mortar composition is discharged from the same opening by tilting the mixing container and fed to the corresponding further processing.
  • mixers have, for example, disadvantages in that, if the size of the mixing container is insufficient, only comparatively small amounts of respective mortar composition can be produced, the supply of the required water being predominantly without precise quantity control, thus qualitatively different Made masses and reworking are required, and that several mortar mixtures with the same quality can be produced only with relatively high effort.
  • a mixing tube is used, which is essentially provided with a dry mortar feeder with a connection device, a water connection and a mixed mortar outlet device.
  • a mixer shaft rotatable about an axis of rotation by means of a drive is used with mixing and conveying tools.
  • a mixing device for producing a mortar composition having a housing in which a rotating about a rotation axis mixing shaft is arranged, which has in its axial extent and concentric to the axis of rotation arranged in a range shaft piece, and wherein the mixing shaft in another area of its axial Extension is formed by at least one connecting element, which is arranged at a radial distance from the axis of rotation.
  • a mixer for the production of homogeneous moistened suspensions with water in which a housing with a filling device a shaft-driven metering device and an axially axially connectable mixing tube are provided with a discharge and a connection for a metered input liquid, wherein the mixing tube has impact body and a premix section, a swirl section and a discharge section are formed, and wherein on the shaft an elementary rim is provided with a plurality of radial wing elements.
  • DE-U1-299 06 703 discloses a device according to the preamble of claim 1.
  • a device for continuous mixing and spraying of plaster is out FR 2 157 621 A1 known.
  • This device is characterized in that the screw conveyor consists of two connectable via a plug-in couplings sections. The upper section of the screw conveyor is removable, whereby a particularly simple cleaning of the device is made possible.
  • WO 93 23223 is an easily removable mixing pump for the production of screed, plaster, mortar and similar materials known having a tilted conveyor and mixing tube. About a reservoir, the dry mix of the feed screw located in the conveyor tube is supplied. The driven by a mounted on the upper end of the conveyor tube motor and the mixture is conveyed into the mixing tube below the conveyor tube, where it is mixed with water.
  • the invention has for its object to provide a device for mixing dry mix with water, which is light and flexible for continuous and intensive mixing of a difficult to mix, dry mortar mass with the water for both dependent on existing facilities and independent thereof Mixed operation can be used to produce an exact layer structure.
  • the axially divisible, but substantially closed design of the mixing chamber according to the invention allows both a stationary and dependent on suitable facilities operation for the production of comparatively large amounts of mortar and an independent, mobile and separate operation for the production of small amounts of mortar and low demand.
  • the axial division with the hinged respectively to the flanges upper part and lower part of the mixing chamber serves on the one hand a simplification of required cleaning processes within the mixing chamber, and on the other hand, with open mixing chamber free access to the mixing tools on the shaft and the release means for the purpose of change and / or their cleaning possible.
  • the mixing chamber can be connected, for example, to a drive shaft of a corresponding dry mortar feed device and, on the other hand, to a mortar pump, whereby the mixing chamber for mixtures and transport of the mixed mortar composition for producing a corresponding layer structure on wall and floor surfaces in industrial construction can be used variably.
  • the mixing chamber is connected according to their installation position with the respective flange on the one hand to the input side flange, for example, with an existing silo system for dry mortar and on the other hand with the suction flange with an also existing mortar pump and thus inserted between the respective drive device and the mortar pump.
  • the dry mortar is forcibly introduced into the first area (premix area) of the mixing chamber by the special mixing elements arranged in the region of the inlet opening of the flange on the mixer shaft, and initially under rotation through the special mixing tools with the addition of water the first, the mixing chamber radially dividing release agent transported and mixed.
  • the advantage here is that according to the invention from the arranged in the region of the inlet opening of the first flange distribution openings, the water required for mixing in the interior of the mixing chamber very early and distributed with the mortar comes into connection, which is already a good premix and compared to previously required amount of water is reduced.
  • the execution according inclined by an amount in the conveying direction causes mixing in conjunction with the mixing tools provided according to the invention compared to previous facilities overall improved mixing and mixing of the mortar mass in the mixing chamber.
  • the dry ingredients contained in the mortar composition are so intensely mixed with the amount of water supplied and the already premixed components.
  • second radial release agent of the boost pressure is increased with simultaneous admission pressure chamber boundary and also achieved a further improved mixing and corresponding output of the mix. Due to the prevailing increased boost pressure for the eccentric screw pump, an optimum filling and thus the increase in performance is achieved by approximately 15-20%, depending on the type of pump used.
  • trained according to this invention means with extended mixer shaft and mixing chamber, the residence time of the mix is further extended in the mixing chamber, whereby the yield increases and an intensive and high quality digestion of the material to be mixed can be achieved.
  • the coating also provided according to the same invention further reduces the friction caused by the mortar components in the interior of the mixing chamber and "caking" of the mortar on the respective walls, which also reduces the drive power and the delivery pressure and thereby increases the service life of the mixing chamber and the Scope can be extended.
  • FIG. 1 a device according to the invention is shown in longitudinal section as a mixing container, which is identified by the reference numeral 1.
  • the cylindrical mixing container 1 has hereafter also a cylindrical and substantially tubular mixing chamber 2, which is formed relatively long compared to their diameter.
  • the mixing chamber 2 is made according to the embodiment of sheet steel parts, the upper and lower face 2.1 and 2.2 half-shell-shaped and cylindrical formed by formation of axially extending in each case axially extending parting surfaces 2.3, by suitable connecting means (not shown) at standstill of the mixer movable hinged, releasably joined, and wherein, for example, at the respective flange corresponding joints or the like are provided (not shown).
  • the mixing chamber 2 is thus open in the axial direction, whereby the cleaning of the interior, the release agent and the mixer shaft with the corresponding tools and their maintenance, assembly and disassembly are much easier ,
  • the mixing chamber 2 is connected in the closed state at one end face with a first flange 3 with an inner and an outer flange part 3.0 and 3.01 and a water supply 3.1 with a channel 3.11 and distribution openings 3.2, and the flange 3 also has a concentric inlet opening 4.
  • the channel 3.11 according to the embodiment is annular in the flange 3.01 introduced, for example by turning ( Fig. 5b ).
  • Distribution openings 3.2 which are not illustrated in detail, are likewise arranged in a multiple arrangement, for example likewise in a ring shape corresponding to the arrangement of the channel 3.11 and spaced apart from one another in the inner flange part 3.0, their outlet openings being directed axially into the interior of the mixing chamber 2.
  • a second flange 5 with a concentric outlet opening 6 with the faces 2.1 and 2.2 of the mixing chamber 2 is connected.
  • both the flange 3 and the flange 5 can be designed to be divisible, for example, to simplify the cleaning (not shown).
  • a preferably concentric funnel-shaped recess 6.1 which extends towards the interior of the mixing chamber 2, is incorporated by which an improvement of the transport of ready-mixed mix from the mixing chamber 2 is achieved.
  • the mixing chamber 2 can be mounted, for example, between a dry mortar reservoir and a mortar pump.
  • the flange 3 with a corresponding flange of the reservoir for dry mortar, not shown, and with a reservoir
  • the flange 5 is connected to a corresponding connection flange of the mortar pump, also not shown, whereby the mixing chamber 2 is adjacent to a drying area A and a wet area B.
  • the inner surface of the mixing chamber 2 and the inner surfaces of the flanges 3 and 5 may be provided with an unspecified, friction-reducing and preferably hydrophobic coating.
  • the mixing process is thus improved by reducing the so-called "caking" of wet mortar, in particular caused by the respective binder on the respective walls; Furthermore, the cleaning effort for the mixing chamber 2 and adjacent areas is reduced.
  • a mixer shaft 8 is arranged centrally and in the axial direction according to the embodiment of FIG 1.
  • the mixer shaft 8 has a to the axis of the mixing chamber 2 parallel axis of rotation 8.1, and it is according to the embodiment as an extended shaft portion with a first front end 9 with a first clutch assembly 10 outside of the flange 3 and a second front end 11 with a second clutch assembly 12 rotatably disposed within the mixing chamber 2 between corresponding connection means (not shown).
  • the device as a whole is tilted in the direction of the wet area B by an amount (not shown), for example, to improve the mixing process and the output of the mix.
  • the respective clutch assembly 10 and 12 consists according to the embodiment of a not-described in detail, simple claw coupling, each releasably corresponding to a corresponding coupling part of the connection means of a drive element, not shown, the storage device on the one hand and the mortar pump; Other and correspondingly suitable coupling variants can be used here alternatively (not shown).
  • a guide is arranged in the region of the inlet opening 4, which consists of individual guide surfaces 13 whose respective guide surface are arranged in the radial extent and in an angle to the axis of rotation 8.1 in the direction of rotation of the mixer shaft 8 angle ⁇ and their respective outer peripheral edge ( please refer Fig. 3b ) is approximated to the inner wall of the inlet opening 4.
  • the provided in the region of the inlet opening 4 first part of mixing tools in this case has at least one circumferentially of the mixer shaft 8 radially arranged mixing bar 15, preferably a plurality of mixing ribs 15 circumferentially, the / spaced with the circumference and / or opposite, at least one obliquely arranged mixing bar 16, preferably with a plurality of circumferentially arranged mixing ribs 16 corresponding, is provided / are.
  • the type and number of mixing tools to be arranged distributed on the circumference of the mixer shaft 8 can be varied.
  • an arrangement of, for example, 4 radial, flat mixing blades 15.1 is provided on the circumference of the mixer shaft 8, which preferably adjusted positively with its respective surface at an angle to the axis 8.1, according to the direction of rotation and the wall 2.4 with her tangent to each outer area, are detachably or fixedly arranged on the shaft 8 at the same distance from each other.
  • each mixing spoon 18 tangentially surrounds the inner surface 2.4 of the mixing chamber 2 when the mixer shaft 8 rotates.
  • the mixing chamber 2 further comprises a first and a second separating means 19; Provided 19.1, each of which spaced apart in a defined, radial position between the mixing tools in the mixing chamber 2 detachably (not shown) are arranged on the inner surface 2.4, so that between them, the mixing tools 15, 16, 17 and 18 are freely rotatable.
  • FIG. 2 shows a schematic sectional view through an analogous to the FIG. 1 trained mixing chamber 2, in which, however, shortens the mixer shaft 8 in externally the same arrangement of the coupling assembly 10 according to the second invention within the mixing chamber 2 and divided into shaft sections 8.2 and 8.3, and wherein the thus formed end portions 8.4; 8.5 spaced apart by means of at least one arranged on these holders of a mixing bridge 14 and are rotatable in the axial direction.
  • the at least one mixing bridge 14 with a body edge 14.1 is preferably with mixing webs 17; 18 analogous to the embodiment according to the FIG. 1 combined, and wherein the respective body edge 14.1 corresponding to the number of rotating mixing bridges 14, the inner surface 2.4 of the mixing chamber 2 is tangent.
  • the division of the mixer shaft 8 causes, in conjunction with the arrangement of, for example, several distributed on the circumference of the shaft sections 8.2 and 8.3 mixing bridges 14 and the other mixing tools and the release agent 19, a reduction of the impact effect in the region of the inlet opening 4 and a high mixing performance.
  • a particularly good mixing effect is achieved if the mixing bridges 14 are each arranged on the shaft sections 8.2 and 8.3 such that their body edges 14.1 are inclined positively in relation to the axis of rotation 8.1 at an angle in the direction of the output side on the flange 6
  • the according to the FIGS. 1 and 2 on the inner surface 2.4 of the mixing chamber 2 shown separating means 19, 19.1 19.2 and 19.3 may be disc-shaped or segmentally formed with recesses 21 and detachably arranged, with a radial arrangement provided and relative to the shaft 8 and the respective shaft section 8.2 and 8.3 an inner distance a is formed.
  • FIGS. 3a and 3b is a mixer shaft 8 in a shortened version without mixing blades 15.1, but shown with an arrangement of differently designed mixing tools, which is preferably used for mixing operations with easily mixable mix.
  • FIG. 3b a plan view of the mixer shaft 8, in which the additional extent and inclination of the mixing spoon 18 in the direction of rotation of the mixer shaft 8 and the arrangement of the guide surfaces of the guide 13 are schematically visible.
  • FIGS. 4a and 4b is an open mixing chamber 2 with open release means 19 shown schematically in plan view and in longitudinal view.
  • the upper and lower part 2.1 and 2.2 can do so, for example, at the pivot / bearing point 23 by means of corresponding and provided on the respective flanges 3 and 5, not shown screws 24 and 25 or the like means in communication.
  • the segments 20 of the separator 19 are in this case formed annularly with their respective outer end face and frontally arranged facing each other, and they are held on a respective annular web not described in detail, formed by the first part 19.1 and second part 19.2 and also not closer described manner on the inner surface of the first and second partial surface 2.1 and 2.2 of the mixing chamber 2 is detachably arranged.
  • the second separating means 22 like the first separating means 19 and / or in addition to the aforementioned embodiment, may also be designed in the form of a disk, for example, without segments 20 and recesses 21.
  • FIGS. 5a and 5b is the arrangement of the water supply in the interior of the mixing chamber 2 ( Fig. 1 and 2 ) through the flange 3, shown.
  • the water supply takes place via a water supply 3.1, which via a corresponding connection arrangement, which is arranged for example on the circumference of the flange 3, and via a further connection to an annular channel 3.11 in the flange 3, for example via a non-illustrated Hole is made.
  • the annular channel 3.11 is in this case formed by division of the flange 3 in that, for example, in one of the inner surfaces of a flange 3.0 or 3.01 an annular groove is introduced, with a number of corresponding and spaced apart distribution openings 3.2 in the region of the course of the annular Groove is connected.
  • the annular channel 3.11 is formed in the flange 3, which this after completion with the faces 2.1 and 2.2 and the flange 5 and forming the mixing chamber 2 allows a tax base and homogeneous water supply via the here radially or otherwise arranged water supply 3.1 into the interior of the mixing chamber 2 and dry mortar located there.
  • the respectively formed according to the inventions and internally defined coated mixing chamber is preferably used for mixing mortar for a mechanized plaster application as a mixing device for difficult to mix dry mortar between a reservoir with conveyor and an eccentric screw pump for plaster and / or concrete mortar, the mixing tools and separators are designed as wearing parts.
  • the device can be used for manually applied plaster or concrete mixtures as well as for other sprayable mixtures, such as spray plaster or color mixtures, in conjunction with a mortar pump.

Abstract

Device for mixing dry mortar with water comprises a mixing container (1) and a cylindrical mixing chamber with flanges (3, 5) having a concentric inlet opening (4) on one side and a concentric outlet opening (6) having a concentric recess (6.1) on the other side. Axial distribution openings (3.2) are arranged in the region of the inner side of the flange (3).

Description

Die Erfindung betrifft eine Einrichtung zum kontinuierlichen und intensiven Mischen von Trockenmörtel gemäß Patenanspruch 1.The invention relates to a device for continuous and intensive mixing of dry mortar according to claim 1.

Die Erfindung ist verwendbar zum kontinuierlichen und intensiven Vermischen von schwer mischbarem Trockenmörtel mit Wasser zur Herstellung einer spritzfähigen Mörtelmasse, die beispielsweise zur Herstellung von Putzschichten mittels einer entsprechenden Spritzeinrichtung eingesetzt wird.The invention can be used for the continuous and intensive mixing of difficult-to-mix dry mortar with water to produce a sprayable mortar composition, which is used for example for the production of plaster layers by means of a corresponding injection device.

Die Erfindung ist ebenfalls anwendbar für Mischvorrichtungen zum Mischen von fließfähigem Betonmörtel oder Fließestrich, beispielsweise zur Herstellung von Fußbodenflächen.The invention is also applicable to mixing devices for mixing flowable concrete mortar or floating screed, for example for the production of floor surfaces.

Mischeinrichtungen oder Mischer werden beispielsweise bei der mechanisierten Herstellung von entsprechenden Putzschichten auf einer jeweiligen Wandfläche sowohl im Innenbereich von Gebäuden als auch an Außenwandflächen verwendet, wobei eine jeweilige Menge von nassem, fertig gemischten Mörtel mittels einer entsprechenden Mörtelpumpe durch eine Rohr- oder Schlauchanordnung bis zur jeweiligen Auftragfläche für die Putzschicht gepumpt wird.Mixing devices or mixers are used, for example, in the mechanized production of corresponding plaster layers on a respective wall surface both in the interior of buildings and on outer wall surfaces, wherein a respective amount of wet, ready mixed mortar by means of a corresponding mortar pump through a pipe or hose assembly to the respective Application surface for the plaster layer is pumped.

Dazu ist es erforderlich, eine möglichst fließfähige, pastöse Mörtelmasse in hoher Qualität herzustellen, wozu eine Menge jeweiliger Einsatzstoffe mit einer hinreichenden Menge von Wasser in einer Mischvorrichtung mit einer Ein- /Ausgabeöffnung kontinuierlich und intensiv durchgemischt wird.For this purpose, it is necessary to produce a very fluid, pasty mortar mass in high quality, for which a lot of respective starting materials with a sufficient amount of water in a mixing device with an input / output port is mixed continuously and intensively.

Üblicherweise wird nach Durchmischung der Einsatzstoffe mit dem Wasser durch Kippen des Mischbehälters die durchmischte Mörtelmasse aus derselben Öffnung ausgegeben und der entsprechenden Weiterverarbeitung zugeführt.Usually, after thorough mixing of the feedstocks with the water, the thoroughly mixed mortar composition is discharged from the same opening by tilting the mixing container and fed to the corresponding further processing.

Diese Mischer weisen beispielsweise Nachteile dahingehend auf, dass bei nicht ausreichender Größe des Mischbehälters jeweils nur vergleichsweise geringe Mengen jeweiliger Mörtelmasse hergestellt werden können, die Zuführung des erforderlichen Wassers überwiegend ohne präzise Mengenkontrolle erfolgt, dadurch qualitativ unterschiedliche Massen hergestellt und Nacharbeiten erforderlich werden, und dass mehrere Mörtelmischungen mit derselben Qualität nur mit vergleichsweise hohem Aufwand herstellbar sind.These mixers have, for example, disadvantages in that, if the size of the mixing container is insufficient, only comparatively small amounts of respective mortar composition can be produced, the supply of the required water being predominantly without precise quantity control, thus qualitatively different Made masses and reworking are required, and that several mortar mixtures with the same quality can be produced only with relatively high effort.

Aus der DE 19908732 A1 und der DE 29913727 U1 sind beispielsweise Vorrichtungen zum Mischen von Mörtel bekannt. Bei diesen Vorrichtungen ist jeweils ein Mischrohr eingesetzt, das im Wesentlichen mit einer Zuführeinrichtung für trockenen Mörtel mit einer Anschlusseinrichtung, einem Wasseranschluss und einer Auslasseinrichtung für gemischten Mörtel versehen ist.From the DE 19908732 A1 and the DE 29913727 U1 for example, devices for mixing mortar are known. In each of these devices, a mixing tube is used, which is essentially provided with a dry mortar feeder with a connection device, a water connection and a mixed mortar outlet device.

Im Inneren des jeweiligen Mischrohrs ist eine um eine Drehachse mittels Antrieb drehbare Mischerwelle mit Misch- und Förderwerkzeugen eingesetzt.Inside the respective mixing tube, a mixer shaft rotatable about an axis of rotation by means of a drive is used with mixing and conveying tools.

Mit diesen Vorrichtungen wird unter Zuführung des trockenen Mörtels und Drehung der Mischerwelle sowie Zuführung einer definierten Menge von Wasser kontinuierlich eine pastöse Mörtelmasse hergestellt, die unmittelbar nach dem Mischvorgang an der Auslasseinrichtung einer mit der Mischeinrichtung verbundenen Mörtelpumpe zugeführt wird.With these devices, while supplying the dry mortar and rotating the mixer shaft and supplying a defined amount of water, a pasty mortar composition is produced continuously, which is fed to the outlet device of a mortar pump connected to the mixing device immediately after the mixing process.

Aus der DE 202004020257 U1 ist eine Mischvorrichtung zur Herstellung einer Mörtelmasse mit einem Gehäuse bekannt, in dem eine um eine Drehachse drehbare Mischwelle angeordnet ist, die in ihrer axialen Erstreckung und konzentrisch zur Drehachse ein in einem Bereich angeordnetes Wellenstück aufweist, und wobei die Mischwelle in einem anderen Bereich ihrer axialen Erstreckung durch mindestens ein Verbindungselement gebildet ist, das mit radialem Abstand zur Drehachse angeordnet ist.From the DE 202004020257 U1 a mixing device for producing a mortar composition having a housing is known in which a rotating about a rotation axis mixing shaft is arranged, which has in its axial extent and concentric to the axis of rotation arranged in a range shaft piece, and wherein the mixing shaft in another area of its axial Extension is formed by at least one connecting element, which is arranged at a radial distance from the axis of rotation.

Aus der DE 19917056 B4 ist ein Mischer zur Herstellung von homogenen durchfeuchteten Suspensionen mit Wasser bekannt, bei dem ein Gehäuse mit einer Einfüllvorrichtung eine wellengetriebene Dosiereinrichtung und ein daran axial gerichtet anschließbares Mischrohr mit einer Austragsöffnung und ein Anschluss für eine dosiert eingebbare Flüssigkeit vorgesehen sind, wobei das Mischrohr Prallkörper aufweist und ein Vormischabschnitt, ein Verwirbelungsabschnitt und ein Austragsabschnitt gebildet sind, und wobei an der Welle ein Elementekranz mit mehreren radialen Flügelelementen vorgesehen ist.From the DE 19917056 B4 a mixer for the production of homogeneous moistened suspensions with water is known in which a housing with a filling device a shaft-driven metering device and an axially axially connectable mixing tube are provided with a discharge and a connection for a metered input liquid, wherein the mixing tube has impact body and a premix section, a swirl section and a discharge section are formed, and wherein on the shaft an elementary rim is provided with a plurality of radial wing elements.

Bei den Mischvorrichtungen der vorgenannten Arten besteht schließlich ein Nachteil darin, dass die überwiegend kontinuierlich in den jeweiligen Mischraum transportierten, trockenen Einsatzstoffe nicht immer vollständig und intensiv mit Wasser vermischt werden.Finally, in the mixing devices of the abovementioned types, there is a disadvantage in that the dry feedstocks, which are transported predominantly continuously into the respective mixing chamber, are not always completely and intensively mixed with water.

DE-U1-299 06 703 offenbart eine Einrichtung gemäß dem Oberbegriff des Anspruchs 1. DE-U1-299 06 703 discloses a device according to the preamble of claim 1.

In DE 41 20 895 A1 ist eine Mischpumpe beschrieben, die für eine mischende Aufbereitung vom z. B. Putzen und Mörteln gedacht ist. Mit einem Antriebsmotor werden einerseits ein Mischwerk und andererseits eine Exenter-Schneckenpumpe, an deren Druckstutzen eine Spritzgerät anschließbar ist, angetrieben. Über Freiläufe können das Mischwerk und die Exenter-Schneckenpumpe einzeln außer Betrieb genommen werden, um die Mischpumpe aus dem Mischbetrieb in den Pumpbetrieb und umgekehrt umschalten zu können.In DE 41 20 895 A1 a mixing pump is described, which is suitable for a mixing treatment of z. B. plastering and mortar is thought. With a drive motor on the one hand, a mixer and on the other hand, an eccentric screw pump, at the discharge nozzle, a spray device is connected, driven. By means of freewheels, the mixing unit and the eccentric worm pump can be taken out of operation individually in order to be able to switch the mixing pump from the mixed mode to the pump mode and vice versa.

Mit DE 88 07 053 U1 ist ein Rohrmischer für trockenes Silo-Schüttgut bei dem ein Trockenmaterialrohr und ein Mischrohr axial fluchtend mittels Schnellkupplung verbunden sind, offenbart. Im inneren des Trockenmaterial- und des Mischrohrs sind jeweils eine Transport- bzw. Mischwelle angeordnet. Nahe des oberen Ende des oberen Endes des Mischrohrs befindet sich ein Flüssigkeitsanschlussstutzen. Erfindungsgemäß weist die Rohranordnung eine Neigung von 30° auf. Dieser Rohrmischer eignet sich für die Beschickung von Spritzbeton- oder Spritzmörtelmaschinen.With DE 88 07 053 U1 is a tube mixer for dry bulk silo in which a dry material pipe and a mixing tube are axially aligned by means of quick coupling disclosed. In the interior of the dry material and the mixing tube, a transport or mixing shaft are arranged in each case. Near the top of the top of the mixing tube is a fluid port. According to the invention, the tube arrangement has an inclination of 30 °. This tube mixer is suitable for feeding shotcrete or spray mortar machines.

Eine Vorrichtung zum kontinuierlichen Anmischen und Verspritzen von Putzmörtel ist aus FR 2 157 621 A1 bekannt. Diese Vorrichtung zeichnet sich dadurch aus, dass die Förderschnecke aus zwei über eine Steckkupplung verbindbaren Teilstücken besteht. Das obere Teilstück der Förderschnecke ist herausnehmbar, wodurch eine besonders einfache Reinigung der Vorrichtung ermöglicht wird.A device for continuous mixing and spraying of plaster is out FR 2 157 621 A1 known. This device is characterized in that the screw conveyor consists of two connectable via a plug-in couplings sections. The upper section of the screw conveyor is removable, whereby a particularly simple cleaning of the device is made possible.

Aus WO 93 23223 ist eine leicht demontierbare Mischpumpe für die Herstellung von Estrich, Putz, Mörtel und ähnlichen Materialien bekannt, die ein Geneigtes Förder- und Mischrohr aufweist. Über einen Vorratsbehälter wird das trockene Mischgut der im Förderrohr befindlichen Förderschnecke zugeführt. Die von einem am oberen Ende des Förderrohrs angebrachten Motor angetrieben wird und das Mischgut in das Mischrohr unterhalb des Förderrohrs befördert, wo es mit Wasser vermischt wird.Out WO 93 23223 is an easily removable mixing pump for the production of screed, plaster, mortar and similar materials known having a tilted conveyor and mixing tube. About a reservoir, the dry mix of the feed screw located in the conveyor tube is supplied. The driven by a mounted on the upper end of the conveyor tube motor and the mixture is conveyed into the mixing tube below the conveyor tube, where it is mixed with water.

Auf Grund von ungemischten und trockenen Anteilen beziehungsweise Mengen von Mörtelmasse in der gesamten Mörtelmenge einer Mischung können somit in einer damit hergestellten Putzschicht Fehler entstehen, wodurch entsprechende Nachbesserungen erforderlich werden können.Due to unmixed and dry proportions or amounts of mortar composition in the total amount of mortar of a mixture can thus result in a plaster layer produced therewith, whereby corresponding improvements may be required.

Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung zum Mischen von trockenem Mischgut mit Wasser zu schaffen, welche leicht ist und flexibel zum kontinuierlichen und intensiven Durchmischen einer auch schwer mischbaren, trockenen Mörtelmasse mit dem Wasser sowohl für einen von bestehenden Einrichtungen abhängigen als auch davon unabhängigen Mischbetrieb zur Herstellung eines exakten Schichtaufbaus einsetzbar ist.The invention has for its object to provide a device for mixing dry mix with water, which is light and flexible for continuous and intensive mixing of a difficult to mix, dry mortar mass with the water for both dependent on existing facilities and independent thereof Mixed operation can be used to produce an exact layer structure.

Die Aufgabe wird erfindungsgemäß mit den Merkmalen gemäß des Patentanspruchs 1 gelöst; vorteilhafte Weiterbildungen der Erfindung sind in den abhängigen Unteransprüchen beschrieben.The object is achieved with the features according to the patent claim 1; advantageous developments of the invention are described in the dependent subclaims.

Mit den Merkmalen gemäß der Erfindung ist gegenüber dem Stand der Technik in vorteilhafter Weise ein kontinuierliches und intensives Vermischen insbesondere von trockenem und schwer mischbarem Mörtel mit einer entsprechenden und dosierbaren Menge von Wasser in hoher Qualität und Ergiebigkeit möglich. Dabei ist von besonderer Bedeutung für den Mischvorgang, dass die Wasserzuführung über ringförmig angeordnete Einlassöffnungen von der Antriebsseite aus, in Flussrichtung des Mischgutes bis hin zur Saugseite der angeschlossenen Exzenterschneckenpumpe erfolgt. Infolge dieser Art der Wasserzuführung, kommt es zu einer außerordentlich gleichmäßigen Durchfeuchtung des Mischgutes, ohne dass Bindemittel ausgewaschen werden. Der Verschleiß der Mischwelle wird mithin gegenüber dem bekannten Stand der Technik auf ein Minimum reduziert.With the features according to the invention is compared to the prior art in an advantageous manner, a continuous and intensive mixing in particular of dry and difficult to mix mortar with a corresponding and metered amount of water in high quality and fertility possible. It is of particular importance for the mixing process that the water supply via annular inlet openings arranged from the drive side, in the flow direction of the mixed material up to the suction side of the connected eccentric screw pump. As a result of this type of water supply, it comes to a very uniform wetting of the mix without binders are washed out. The wear of the mixing shaft is therefore reduced to a minimum compared to the known prior art.

Die axial teilbare, aber im Wesentlichen geschlossene Bauweise der erfindungsgemäß ausgebildeten Mischkammer ermöglicht dabei sowohl einen stationären und von geeigneten Einrichtungen abhängigen Betrieb für die Herstellung vergleichsweise großer Mörtelmengen als auch einen unabhängigen, mobilen und separaten Betrieb für die Herstellung kleiner Mengen von Mörtel und geringen Bedarf.The axially divisible, but substantially closed design of the mixing chamber according to the invention allows both a stationary and dependent on suitable facilities operation for the production of comparatively large amounts of mortar and an independent, mobile and separate operation for the production of small amounts of mortar and low demand.

Die axiale Teilung mit dem an den Flanschen jeweils angelenkten Oberteil und Unterteil der Mischkammer dient hierbei einerseits einer Vereinfachung erforderlicher Reinigungsprozesse innerhalb der Mischkammer, und andererseits ist bei geöffneter Mischkammer ein freier Zugriff zu den Mischwerkzeugen an der Welle und zu den Trennmitteln zum Zweck des Wechsels und/oder ihrer Reinigung möglich.The axial division with the hinged respectively to the flanges upper part and lower part of the mixing chamber serves on the one hand a simplification of required cleaning processes within the mixing chamber, and on the other hand, with open mixing chamber free access to the mixing tools on the shaft and the release means for the purpose of change and / or their cleaning possible.

Die Mischkammer ist Dank der an den Wellenenden vorgesehenen Kupplungsanordnungen einerseits beispielsweise mit einer Antriebswelle entsprechender Zuführeinrichtung für Trockenmörtel und andererseits mit einer Mörtelpumpe verbindbar, wodurch die Mischkammer für Mischungen und den Transport der gemischten Mörtelmasse zur Herstellung eines entsprechenden Schichtaufbaus an Wand- und auch Bodenflächen im Industriebau variabel eingesetzt werden kann.Thanks to the coupling arrangements provided on the shaft ends, the mixing chamber can be connected, for example, to a drive shaft of a corresponding dry mortar feed device and, on the other hand, to a mortar pump, whereby the mixing chamber for mixtures and transport of the mixed mortar composition for producing a corresponding layer structure on wall and floor surfaces in industrial construction can be used variably.

Die Mischkammer wird dazu entsprechend ihrer Einbaulage mit der jeweiligen Flanschanordnung einerseits mit dem eingangsseitigen Flansch beispielsweise mit einer vorhandenen Siloanlage für Trockenmörtel und andererseits mit dem Saugflansch mit einer ebenfalls vorhandenen Mörtelpumpe verbunden und somit zwischen die jeweilige Antriebseinrichtung und die Mörtelpumpe eingesetzt.The mixing chamber is connected according to their installation position with the respective flange on the one hand to the input side flange, for example, with an existing silo system for dry mortar and on the other hand with the suction flange with an also existing mortar pump and thus inserted between the respective drive device and the mortar pump.

Während des Betriebs der Einrichtung wird durch die im Bereich der Einlassöffnung des Flanschs an der Mischerwelle angeordneten, speziellen Leitflächen der Trockenmörtel unter Verwirbelung zwangsweise in den ersten Bereich (Vormischbereich) der Mischkammer eingeleitet und unter Drehung durch die speziellen Mischwerkzeuge unter Zugabe von Wasser zunächst bis an das erste, die Mischkammer radial teilende Trennmittel heran transportiert und vermischt.During operation of the device, the dry mortar is forcibly introduced into the first area (premix area) of the mixing chamber by the special mixing elements arranged in the region of the inlet opening of the flange on the mixer shaft, and initially under rotation through the special mixing tools with the addition of water the first, the mixing chamber radially dividing release agent transported and mixed.

Von Vorteil ist hierbei, dass gemäß der Erfindung aus den im Bereich der Einlassöffnung des ersten Flanschs angeordneten Verteileröffnungen das zum Mischen erforderliche Wasser im Innenraum der Mischkammer sehr frühzeitig und verteilt mit dem Mörtel in Verbindung kommt, wodurch bereits eine gute Vormischung erfolgt und die gegenüber bisher erforderliche Wassermenge verringert wird.The advantage here is that according to the invention from the arranged in the region of the inlet opening of the first flange distribution openings, the water required for mixing in the interior of the mixing chamber very early and distributed with the mortar comes into connection, which is already a good premix and compared to previously required amount of water is reduced.

Der Einsatz und Betrieb einer derartigen Mischkammer ist daher gegenüber bisherigen Anlagen mit einer geringeren elektrischen Leistung möglich (z. B. 230 V), außerdem kann bei Bedarf die Abbinde- und Aushärtezeit des Mörtels auf Grund des Einsatzes einer vergleichsweise geringeren Wassermenge verkürzt werden.The use and operation of such a mixing chamber is therefore possible in comparison to previous systems with a lower electrical output (eg 230 V), and if necessary the setting and curing time of the mortar can be shortened due to the use of a comparatively smaller amount of water.

Die ausführungsgemäß um einen Betrag in Förderrichtung geneigte Mischkammer bewirkt in Verbindung mit den erfindungsgemäß vorgesehenen Mischwerkzeugen eine gegenüber bisherigen Einrichtungen insgesamt verbesserte Durchmischung und Vermischung der Mörtelmasse in der Mischkammer.The execution according inclined by an amount in the conveying direction causes mixing in conjunction with the mixing tools provided according to the invention compared to previous facilities overall improved mixing and mixing of the mortar mass in the mixing chamber.

Die in der Mörtelmasse enthaltenen, trockenen Bestandteile werden so mit Sicherheit intensiv mit der zugeführten Wassermenge und den bereits vorgemischten Bestandteilen vermischt.The dry ingredients contained in the mortar composition are so intensely mixed with the amount of water supplied and the already premixed components.

Dadurch wird insgesamt ein kontinuierlicher und intensiver Mischvorgang ermöglicht, wodurch die Qualität eines derart gemischten Mörtels bedeutend verbessert, Haftfehler in einer herzustellenden Putzschicht oder in einer jeweiligen Bodenfläche auf Grund des Fehlens von, ungenügend aufgemischten Bestandteilen in der Mörtelmasse oder dem Estrich vermieden beziehungsweise ausgeschlossen werden.This altogether enables a continuous and intensive mixing process, whereby the quality of such a mixed mortar is significantly improved, adhesion errors in a plaster layer to be produced or in a respective bottom surface due to the lack of insufficiently mixed components in the mortar composition or screed are avoided or eliminated.

Durch das im Bereich zwischen dem ersten Trennmittel und der Auslassöffnung der Mischkammer auf Grund der verlängerten Wischerwelle und Mischkammer des Weiteren angeordnete zweite radiale Trennmittel wird der Ladedruck bei gleichzeitiger Vordruckkammerbegrenzung erhöht und zudem eine weiter verbesserte Vermischung und dementsprechende Ausgabe des Mischguts erzielt. Durch den vorherrschenden erhöhten Ladedruck für die Exzenterschneckenpumpe wird eine optimale Füllung und damit die Leistungserhöhung um ca. 15- 20 % je nach eingesetztem Pumpentyp erreicht.By in the region between the first separating means and the outlet opening of the mixing chamber due to the extended wiper shaft and mixing chamber further arranged second radial release agent of the boost pressure is increased with simultaneous admission pressure chamber boundary and also achieved a further improved mixing and corresponding output of the mix. Due to the prevailing increased boost pressure for the eccentric screw pump, an optimum filling and thus the increase in performance is achieved by approximately 15-20%, depending on the type of pump used.

Durch die gemäß dieser Erfindung ausgebildete Einrichtung mit verlängerter Mischerwelle und Mischkammer wird ferner die Verweilzeit des Mischguts in der Mischkammer verlängert, wodurch die Ergiebigkeit erhöht und ein intensiver und qualitativ hochwertiger Aufschluss des zu mischenden Materials erreicht werden.By trained according to this invention means with extended mixer shaft and mixing chamber, the residence time of the mix is further extended in the mixing chamber, whereby the yield increases and an intensive and high quality digestion of the material to be mixed can be achieved.

Die gemäß derselben Erfindung außerdem vorgesehene Beschichtung vermindert des Weiteren die durch die Mörtelbestandteile hervorgerufene Reibung im Innenraum der Mischkammer und ein "Anbacken" des Mörtels an den jeweiligen Wandungen, wodurch ebenfalls die Antriebsleistung und der Förderdruck reduziert werden und dadurch die Nutzungsdauer der Mischkammer erhöht und der Anwendungsbereich erweitert werden können.The coating also provided according to the same invention further reduces the friction caused by the mortar components in the interior of the mixing chamber and "caking" of the mortar on the respective walls, which also reduces the drive power and the delivery pressure and thereby increases the service life of the mixing chamber and the Scope can be extended.

Außerdem wird mit dieser Einrichtung erreicht, dass ansonsten schwer verarbeitbares beziehungsweise mischbares Material gegenüber bisherigen Lösungen pumpfähig wird und mittels Schlauch- und Spritzeinrichtungen entsprechend gefördert und verarbeitet werden kann.In addition, it is achieved with this device that otherwise difficult to process or miscible material over previous solutions is pumped and can be promoted and processed by hose and spray devices accordingly.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels und anhand der Figuren 1 bis 5 näher erläutert; hierbei zeigt:

Fig. 1
eine schematische Darstellung der Einrichtung gemäß einer ersten Erfindung im Längsschnitt;
Fig. 2
eine schematische Darstellung einer Einrichtung gemäß einer zweiten Erfindung im Längsschnitt;
Fig. 3a)
und 3b)
eine Ausführungsform einer Mischerwelle in Längsansicht und Draufsicht;
Fig. 4a)
und 4b)
Darstellungen einer geöffneten Mischkammer mit einem geöff- neten Trennmittel nach der Fig. 1 in Richtung C und im Längs- schnitt;
Fig. 5a)
und 5b)
einen Flansch mit Wasserzuführeinrichtung in Draufsicht und im Schnitt;
The invention will now be described with reference to an embodiment and with reference to the FIGS. 1 to 5 explained in more detail; this shows:
Fig. 1
a schematic representation of the device according to a first invention in longitudinal section;
Fig. 2
a schematic representation of a device according to a second invention in longitudinal section;
Fig. 3a)
and 3b)
an embodiment of a mixer shaft in longitudinal and plan view;
Fig. 4a)
and 4b)
Representations of an open mixing chamber with an opened release agent after the Fig. 1 in direction C and in longitudinal section;
Fig. 5a)
and 5b)
a flange with water supply in plan view and in section;

In der Figur 1 ist eine Einrichtung gemäß der Erfindung im Längsschnitt als Mischbehälter dargestellt, der mit dem Bezugszeichen 1 gekennzeichnet ist.In the FIG. 1 a device according to the invention is shown in longitudinal section as a mixing container, which is identified by the reference numeral 1.

Der zylinderförmige Mischbehälter 1 weist hiernach eine ebenfalls zylinderförmige und im Wesentlichen rohrförmige Mischkammer 2 auf, welche gegenüber ihrem Durchmesser vergleichsweise lang gestreckt ausgebildet ist.The cylindrical mixing container 1 has hereafter also a cylindrical and substantially tubular mixing chamber 2, which is formed relatively long compared to their diameter.

Die Mischkammer 2 ist nach dem Ausführungsbeispiel aus Stahlblechteilen hergestellt, deren obere und untere Teilfläche 2.1 und 2.2 halbschalenförmig gebogen und zylinderförmig durch Bildung von jeweils in horizontaler Erstreckung axial verlaufende Trennflächen 2.3 gebildet ist, die durch entsprechende Verbindungsmittel (nicht dargestellt) im Stillstand des Mischers beweglich angelenkt, lösbar zusammengefügt ist, und wobei beispielsweise an dem jeweiligen Flansch entsprechende Gelenke oder dergleichen vorgesehen sind (nicht dargestellt).The mixing chamber 2 is made according to the embodiment of sheet steel parts, the upper and lower face 2.1 and 2.2 half-shell-shaped and cylindrical formed by formation of axially extending in each case axially extending parting surfaces 2.3, by suitable connecting means (not shown) at standstill of the mixer movable hinged, releasably joined, and wherein, for example, at the respective flange corresponding joints or the like are provided (not shown).

Durch die entlang der Trennflächen 2.3 angeordneten oberen und unteren Teilflächen 2.1 und 2.2 ist die Mischkammer 2 somit in axialer Richtung zu öffnen, wodurch die Reinigung des Innenraums, der Trennmittel und der Mischerwelle mit den entsprechenden Werkzeugen sowie deren Wartung, Montage und Demontage wesentlich erleichtert werden.By arranged along the parting surfaces 2.3 upper and lower faces 2.1 and 2.2, the mixing chamber 2 is thus open in the axial direction, whereby the cleaning of the interior, the release agent and the mixer shaft with the corresponding tools and their maintenance, assembly and disassembly are much easier ,

Die Mischkammer 2 ist in geschlossenem Zustand an einer Stirnseite mit einem ersten Flansch 3 mit einem inneren und einem äußeren Flanschteil 3.0 und 3.01 sowie einer Wasserzuführeinrichtung 3.1 mit einem Kanal 3.11 und Verteileröffnungen 3.2 verbunden, und der Flansch 3 weist außerdem eine konzentrische Einlassöffnung 4 auf.The mixing chamber 2 is connected in the closed state at one end face with a first flange 3 with an inner and an outer flange part 3.0 and 3.01 and a water supply 3.1 with a channel 3.11 and distribution openings 3.2, and the flange 3 also has a concentric inlet opening 4.

Der Kanal 3.11 ist gemäß dem Ausführungsbeispiel ringförmig im Flanschteil 3.01 beispielsweise durch Drehen eingebracht (Fig. 5b).The channel 3.11 according to the embodiment is annular in the flange 3.01 introduced, for example by turning ( Fig. 5b ).

Die in der Figur 1 nicht näher dargestellten Verteileröffnungen 3.2 sind in mehrfacher Anordnung beispielsweise ebenfalls ringförmig entsprechend der Anordnung des Kanals 3.11 und zueinander beabstandet im inneren Flanschteil 3.0 angeordnet, wobei deren Auslassöffnungen axial in den Innenraum der Mischkammer 2 gerichtet sind.The in the FIG. 1 Distribution openings 3.2, which are not illustrated in detail, are likewise arranged in a multiple arrangement, for example likewise in a ring shape corresponding to the arrangement of the channel 3.11 and spaced apart from one another in the inner flange part 3.0, their outlet openings being directed axially into the interior of the mixing chamber 2.

Dadurch ist während des Betriebs der Einrichtung in vorteilhafter Weise eine homogene Verteilung einer definiert zugeführten Menge von Wasser über die Wasserzuführeinrichtung 3.1 und den Kanal 3.11 auf die im Innenraum der Mischkammer 2 befindliche Menge von Trockenmörtel (nicht dargestellt) zum intensiven Vormischen bereits im Bereich der Einlassöffnung 4 der Mischkammer 2 in Flussrichtung möglich.As a result, during the operation of the device, a homogeneous distribution of a defined quantity of water via the water supply device 3.1 and the channel 3.11 to the amount of dry mortar (not shown) in the interior of the mixing chamber 2 for intensive premixing already in the region of the inlet opening is advantageously achieved 4 of the mixing chamber 2 in the flow direction possible.

Am dem ersten Flansch 3 zeichnungsgemäß axial gegenüberliegenden Ende der Mischkammer 2 ist ein zweiter Flansch 5 mit einer konzentrischen Auslassöffnung 6 mit den Teilflächen 2.1 und 2.2 der Mischkammer 2 verbunden.At the first flange 3 according to the drawing axially opposite end of the mixing chamber 2, a second flange 5 with a concentric outlet opening 6 with the faces 2.1 and 2.2 of the mixing chamber 2 is connected.

Mit einer radialen Trennfläche versehen, können sowohl der Flansch 3 als auch der Flansch 5 beispielsweise zur Vereinfachung der Reinigung teilbar ausgebildet sein (nicht dargestellt).Provided with a radial separation surface, both the flange 3 and the flange 5 can be designed to be divisible, for example, to simplify the cleaning (not shown).

In der Auslassöffnung 6 ist zeichnungsgemäß innen liegend eine vorzugsweise konzentrische, sich nach dem Innenraum der Mischkammer 2 hin weitende, trichterförmige Ausnehmung 6.1 eingearbeitet, durch welche eine Verbesserung des Transports von fertig gemischtem Mischgut aus der Mischkammer 2 erzielt wird.In the outlet opening 6, according to the drawing, a preferably concentric funnel-shaped recess 6.1, which extends towards the interior of the mixing chamber 2, is incorporated by which an improvement of the transport of ready-mixed mix from the mixing chamber 2 is achieved.

Die Mischkammer 2 kann beispielsweise zwischen einen Vorratsbehälter für Trockenmörtel und eine Mörtelpumpe montiert werden.The mixing chamber 2 can be mounted, for example, between a dry mortar reservoir and a mortar pump.

Dazu ist einerseits der Flansch 3 mit einem entsprechenden Anschlussflansch des nicht dargestellten Vorratsbehälters für Trockenmörtel und mit einer dem Vorratsbehälter üblicherweise zugeordneten Welle einer Fördereinrichtung verbunden, und der Flansch 5 ist andererseits mit einem entsprechenden Anschlussflansch der ebenfails nicht dargestellten Mörtelpumpe verbindbar, wodurch die Mischkammer 2 an einen Trockenbereich A und einen Nassbereich B angrenzt.For this purpose, on the one hand, the flange 3 with a corresponding flange of the reservoir for dry mortar, not shown, and with a reservoir On the other hand, the flange 5 is connected to a corresponding connection flange of the mortar pump, also not shown, whereby the mixing chamber 2 is adjacent to a drying area A and a wet area B.

Die Innenfläche der Mischkammer 2 und die innen liegenden Flächen der Flansche 3 und 5 können mit einer nicht näher beschriebenen, reibungsmindernden und vorzugsweise hydrophoben Beschichtung versehen sein. Der Mischprozess wird so durch Verringerung des so genannten "Anbackens" von nassem Mörtel, insbesondere verursacht durch das jeweilige Bindemittel, an den jeweiligen Wandungen verbessert; ferner wird der Reinigungsaufwand für die Mischkammer 2 und angrenzenden Bereiche verringert.The inner surface of the mixing chamber 2 and the inner surfaces of the flanges 3 and 5 may be provided with an unspecified, friction-reducing and preferably hydrophobic coating. The mixing process is thus improved by reducing the so-called "caking" of wet mortar, in particular caused by the respective binder on the respective walls; Furthermore, the cleaning effort for the mixing chamber 2 and adjacent areas is reduced.

Im Innenraum der Mischkammer 2 ist nach dem Ausführungsbeispiel gemäß der Figur 1 zentrisch und in axialer Richtung eine Mischerwelle 8 angeordnet.In the interior of the mixing chamber 2, a mixer shaft 8 is arranged centrally and in the axial direction according to the embodiment of FIG 1.

Die Mischerwelle 8 weist eine zu der Achse der Mischkammer 2 parallele Drehachse 8.1 auf, und sie ist nach dem Ausführungsbeispiel als verlängerter Wellenabschnitt mit einem ersten stirnseitigen Ende 9 mit einer ersten Kupplungsanordnung 10 außerhalb des Flanschs 3 und einem zweiten stirnseitigen Ende 11 mit einer zweiten Kupplungsanordnung 12 innerhalb der Mischkammer 2 zwischen entsprechenden Anschlussmitteln (nicht dargestellt) drehbar angeordnet.The mixer shaft 8 has a to the axis of the mixing chamber 2 parallel axis of rotation 8.1, and it is according to the embodiment as an extended shaft portion with a first front end 9 with a first clutch assembly 10 outside of the flange 3 and a second front end 11 with a second clutch assembly 12 rotatably disposed within the mixing chamber 2 between corresponding connection means (not shown).

Von Vorteil ist es, wenn die Einrichtung insgesamt in Richtung des Nassbereichs B um einen Betrag geneigt ist (nicht dargestellt), um beispielsweise den Mischprozess und die Ausgabe des Mischguts zu verbessern.It is advantageous if the device as a whole is tilted in the direction of the wet area B by an amount (not shown), for example, to improve the mixing process and the output of the mix.

Die jeweilige Kupplungsanordnung 10 beziehungsweise 12 besteht gemäß dem Ausführungsbeispiel aus einer nicht näher beschriebenen, einfachen Klauen-Kupplung, die jeweils mit einem entsprechenden Kupplungsteil der Anschlussmittel eines nicht dargestellten Antriebselements der Vorratseinrichtung einerseits und der Mörtelpumpe andererseits lösbar korrespondieren; andere und entsprechend geeignete Kupplungsvarianten können hierbei alternativ eingesetzt werden (nicht dargestellt).The respective clutch assembly 10 and 12 consists according to the embodiment of a not-described in detail, simple claw coupling, each releasably corresponding to a corresponding coupling part of the connection means of a drive element, not shown, the storage device on the one hand and the mortar pump; Other and correspondingly suitable coupling variants can be used here alternatively (not shown).

Am Umfang der Mischerwelle 8 ist im Bereich der Einlassöffnung 4 eine Leiteinrichtung angeordnet, die aus einzelnen Leitflächen 13 besteht, deren jeweilige Leitfläche in radialer Erstreckung und in einem zur Drehachse 8.1 in Drehrichtung der Mischerwelle 8 geneigten Winkel ∇ angeordnet sind und deren jeweilige äußere Umfangskante (siehe Fig. 3b) an die innere Wandung der Einlassöffnung 4 angenähert ist.At the periphery of the mixer shaft 8, a guide is arranged in the region of the inlet opening 4, which consists of individual guide surfaces 13 whose respective guide surface are arranged in the radial extent and in an angle to the axis of rotation 8.1 in the direction of rotation of the mixer shaft 8 angle ∇ and their respective outer peripheral edge ( please refer Fig. 3b ) is approximated to the inner wall of the inlet opening 4.

Im Innenraum der Mischkammer 2 sind ferner an der Umfangsfläche der Mischerwelle 8 nach dem hier beschriebenen Ausführungsbeispiel mit der Mischerwelle 8 in lösbarer Verbindung stehende Mischwerkzeuge 15 bis 18 vorgesehen.In the interior of the mixing chamber 2 are also provided on the peripheral surface of the mixer shaft 8 according to the embodiment described here with the mixer shaft 8 in detachable connection mixing tools 15 to 18.

Der im Bereich der Einlassöffnung 4 vorgesehene erste Teil von Mischwerkzeugen weist hierbei wenigstens einen am Umfang der Mischerwelle 8 radial angeordneten Mischsteg 15, vorzugsweise mehrere Mischstege 15 umlaufend auf, der/die mit dazu am Umfang beabstandet und/oder gegenüberliegend, wenigstens einem schräg angeordneten Mischsteg 16, vorzugsweise mit mehreren umlaufend angeordneten Mischstegen 16 korrespondierend, vorgesehen ist/sind.The provided in the region of the inlet opening 4 first part of mixing tools in this case has at least one circumferentially of the mixer shaft 8 radially arranged mixing bar 15, preferably a plurality of mixing ribs 15 circumferentially, the / spaced with the circumference and / or opposite, at least one obliquely arranged mixing bar 16, preferably with a plurality of circumferentially arranged mixing ribs 16 corresponding, is provided / are.

Auf Grund der lösbaren Verbindung mit der Mischerwelle 8 kann je nach zu mischendem Trockenmörtel die Art und Anzahl von am Umfang der Mischerwelle 8 verteilt anzuordnenden Mischwerkzeugen variiert werden.Due to the releasable connection with the mixer shaft 8, depending on the dry mortar to be mixed, the type and number of mixing tools to be arranged distributed on the circumference of the mixer shaft 8 can be varied.

Im Bereich zwischen den Mischwerkzeugen 15 und 16 ist am Umfang der Mischerwelle 8 eine Anordnung von beispielsweise 4 radialen, flachen Mischblättern 15.1 vorgesehen, die mit ihrer jeweiligen Fläche vorzugsweise in einem Winkel zur Achse 8.1, entsprechend der Drehrichtung positiv verstellt und die Wandung 2.4 mit ihrem jeweiligen Außenbereich tangierend, an der Welle 8 in gleichem Abstand zueinander lösbar oder fest angeordnet sind.In the area between the mixing tools 15 and 16, an arrangement of, for example, 4 radial, flat mixing blades 15.1 is provided on the circumference of the mixer shaft 8, which preferably adjusted positively with its respective surface at an angle to the axis 8.1, according to the direction of rotation and the wall 2.4 with her tangent to each outer area, are detachably or fixedly arranged on the shaft 8 at the same distance from each other.

In einem Abstand zu den ersten Mischwerkzeugen 15 und 16 ist im Bereich der Kupplungsanordnung 12 am Umfang der verlängerten Mischerwelle 8 des Weiteren eine Anordnung von radialen Stegen 17 vorgesehen, welche an ihrem distalen Endabschnitt einen in Richtung des Flanschs 6 um einen Betrag geneigten Mischlöffel 18 mit jeweils einer im Wesentlichen bogenförmig angeordneten, äußeren Kontur aufweisen.At a distance from the first mixing tools 15 and 16, in the area of the coupling arrangement 12, on the circumference of the extended mixer shaft 8, there is further provided an arrangement of radial webs 17 which at their distal end portion have a mixing spoon 18 inclined in the direction of the flange 6 by an amount, each having a substantially arcuately arranged, outer contour.

Die nicht näher dargestellte äußere Kontur jeweiligen Mischlöffels 18 tangiert bei umlaufender Mischerwelle 8 annähernd die Innenfläche 2.4 der Mischkammer 2.The non-illustrated outer contour of each mixing spoon 18 tangentially surrounds the inner surface 2.4 of the mixing chamber 2 when the mixer shaft 8 rotates.

Gemäß dem beschriebenen Ausführungsbeispiel sind an der Innenfläche 2.4 der Mischkammer 2 des Weiteren ein erstes und ein zweites Trennmittel 19; 19.1 vorgesehen, welche jeweils zueinender beabstandet in definierter, radialer Lage zwischen den Mischwerkzeugen in der Mischkammer 2 lösbar (nicht dargestellt) an deren Innenfläche 2.4 angeordnet sind, so dass zwischen diesen die Mischwerkzeuge 15, 16, 17 und 18 frei drehbar sind.According to the described embodiment, on the inner surface 2.4 of the mixing chamber 2 further comprises a first and a second separating means 19; Provided 19.1, each of which spaced apart in a defined, radial position between the mixing tools in the mixing chamber 2 detachably (not shown) are arranged on the inner surface 2.4, so that between them, the mixing tools 15, 16, 17 and 18 are freely rotatable.

Die Figur 2 zeigt eine schematische Schnittdarstellung durch eine in analoger Weise zu der Figur 1 ausgebildete Mischkammer 2, in welcher jedoch die Mischerwelle 8 bei äußerlich gleicher Anordnung der Kupplungsanordnung 10 gemäß der zweiten Erfindung innerhalb der Mischkammer 2 verkürzt und in Wellenabschnitte 8.2 und 8.3 geteilt ist, und wobei die derart gebildeten Endabschnitte 8.4; 8.5 mittels wenigstens einer an diesen angeordneten Halterungen einer Mischbrücke 14 beabstandet miteinander verbunden und in axialer Richtung drehbar sind.The FIG. 2 shows a schematic sectional view through an analogous to the FIG. 1 trained mixing chamber 2, in which, however, shortens the mixer shaft 8 in externally the same arrangement of the coupling assembly 10 according to the second invention within the mixing chamber 2 and divided into shaft sections 8.2 and 8.3, and wherein the thus formed end portions 8.4; 8.5 spaced apart by means of at least one arranged on these holders of a mixing bridge 14 and are rotatable in the axial direction.

Die mindestens eine Mischbrücke 14 mit einer Körperkante 14.1 ist vorzugsweise mit Mischstegen 17; 18 analog der Ausführung gemäß der Figur 1 kombiniert, und wobei die jeweilige Körperkante 14.1 entsprechend der Anzahl umlaufender Mischbrücken 14 die Innenfläche 2.4 der Mischkammer 2 tangiert.The at least one mixing bridge 14 with a body edge 14.1 is preferably with mixing webs 17; 18 analogous to the embodiment according to the FIG. 1 combined, and wherein the respective body edge 14.1 corresponding to the number of rotating mixing bridges 14, the inner surface 2.4 of the mixing chamber 2 is tangent.

An dem zeichnungsgemäß rechts in der Mischkammer 2 am Wellenabschnitt 8.3 befindlichen, stirnseitigen Endbereich sind in analoger Weise zu der Ausführungsform in Figur 1 Mischwerkzeuge 17 und 18 und die Kupplungsanordnung 12 angeordnet, wodurch einerseits eine neben dem linksseitigen Mischbereich weitere Durchmischung von Mischgut in dem jeweiligen Bereich der Mischkammer 2 und andererseits eine entsprechende, lösbare Verbindung zu jeweiligem Anschlussgerät (nicht dargestellt) realisierbar ist.On the right in the mixing chamber 2 according to the drawing on the shaft section 8.3 located, frontal end portion are in an analogous manner to the embodiment in FIG. 1 Mixing tools 17 and 18 and the clutch assembly 12 is arranged, whereby on the one hand in addition to the left-side mixing area further mixing of mix in the respective region of the mixing chamber 2 and on the other a corresponding, detachable connection to the respective terminal device (not shown) can be realized.

Die Teilung der Mischerwelle 8 gemäß der beschriebenen Ausführungsform bewirkt in Verbindung mit der Anordnung der beispielsweise mehreren, verteilt am Umfang der Wellenabschnitte 8.2 und 8.3 angeordneten Mischbrücken 14 und den anderen Mischwerkzeugen sowie dem Trennmittel 19 eine Verringerung des Pralleffekts im Bereich der Einlassöffnung 4 und eine hohe Mischleistung.The division of the mixer shaft 8 according to the embodiment described causes, in conjunction with the arrangement of, for example, several distributed on the circumference of the shaft sections 8.2 and 8.3 mixing bridges 14 and the other mixing tools and the release agent 19, a reduction of the impact effect in the region of the inlet opening 4 and a high mixing performance.

Ein besonders guter Mischeffekt wird erzielt, wenn die Mischbrücken 14 jeweils derart an den Wellenabschnitten 8.2 und 8.3 angeordnet sind, dass deren Körperkanten 14.1 in Bezug auf die Drehachse 8.1 um einen Winkel in Richtung der Ausgabeseite am Flansch 6 positiv schräg verstellt sindA particularly good mixing effect is achieved if the mixing bridges 14 are each arranged on the shaft sections 8.2 and 8.3 such that their body edges 14.1 are inclined positively in relation to the axis of rotation 8.1 at an angle in the direction of the output side on the flange 6

Die gemäß der Figuren 1 und 2 an der Innenfläche 2.4 der Mischkammer 2 gezeigten Trennmittel 19, 19.1 19.2 beziehungsweise 19.3 können scheibenförmig oder segmentförmig mit Ausnehmungen 21 ausgebildet und lösbar angeordnet sein, wobei eine radiale Anordnung vorgesehen und gegenüber der Welle 8 und dem jeweiligen Wellenabschnitt 8.2 bzw. 8.3 ein innerer Abstand a gebildet ist.The according to the FIGS. 1 and 2 on the inner surface 2.4 of the mixing chamber 2 shown separating means 19, 19.1 19.2 and 19.3 may be disc-shaped or segmentally formed with recesses 21 and detachably arranged, with a radial arrangement provided and relative to the shaft 8 and the respective shaft section 8.2 and 8.3 an inner distance a is formed.

In den Figuren 3a und 3b ist eine Mischerwelle 8 in verkürzter Ausführung ohne Mischblätter 15.1, jedoch mit einer Anordnung der verschieden ausgestalteten Mischwerkzeuge dargestellt, die vorzugsweise für Mischvorgänge mit leicht vermischbarem Mischgut einsetzbar ist.In the FIGS. 3a and 3b is a mixer shaft 8 in a shortened version without mixing blades 15.1, but shown with an arrangement of differently designed mixing tools, which is preferably used for mixing operations with easily mixable mix.

In der Figur 3b ist dabei eine Draufsicht auf die Mischerwelle 8 dargestellt, in welcher die zusätzliche Erstreckung und Neigung der Mischlöffel 18 in Drehrichtung der Mischerwelle 8 und die Anordnung der Leitflächen der Leitanordnung 13 schematisch erkennbar sind.In the FIG. 3b is shown a plan view of the mixer shaft 8, in which the additional extent and inclination of the mixing spoon 18 in the direction of rotation of the mixer shaft 8 and the arrangement of the guide surfaces of the guide 13 are schematically visible.

In den Figuren 4a und 4b ist eine geöffnete Mischkammer 2 mit geöffnetem Trennmittel 19 schematisch in Draufsicht und in Längsansicht dargestellt.In the FIGS. 4a and 4b is an open mixing chamber 2 with open release means 19 shown schematically in plan view and in longitudinal view.

Wie aus den Figuren 4a und 4b erkennbar ist, erfolgt die Trennung der Mischkammer 2 in ihr oberes und unteres Teil 2.1 und 2.2 entlang der Trennfläche 2.3, wobei gleichzeitig das in der Mischkammer 2 an entsprechender Position angeordnete Trennmittel 19 in gleicher Weise teilbar ist und wodurch das erste und zweite Teil 19.1 und 19.2 des Trennmittels 19 gebildet sind.Like from the FIGS. 4a and 4b can be seen, the separation of the mixing chamber 2 in its upper and lower part 2.1 and 2.2 along the separation surface 2.3, wherein at the same time arranged in the mixing chamber 2 at a corresponding position separating means 19 is divided in the same way and whereby the first and second part 19.1 and 19.2 of the release agent 19 are formed.

Während das beispielsweise untere Teil 2.1 mit dem zweiten Teil 19.2 von dem oberen Teil 2.2 getrennt und mit diesem gemeinsam an einem in dem jeweiligen Flansch 3 und 6 angeordneten Schwenk-/Lagerpunkt 23 verschwenkbar ist, kann das demnach hier dargestellte Teil 19. 1 des Trennmittels 19 am unteren Teil 2.2 der Mischkammer 2 verbleiben oder umgekehrt.While, for example, the lower part 2.1 with the second part 19.2 separated from the upper part 2.2 and together with this in a respective flange 3 and 6 arranged pivot / bearing point 23 is pivotable, thus shown here part 19. 1 of the release agent 19 remain at the lower part 2.2 of the mixing chamber 2 or vice versa.

Das obere und untere Teil 2.1 und 2.2 können dazu beispielsweise an dem Schwenk-/Lagerpunkt 23 mittels entsprechenden und an den jeweiligen Flanschen 3 und 5 vorgesehenen, nicht näher dargestellten Verschraubungen 24 und 25 oder dergleichen Mittel, in Verbindung stehen.The upper and lower part 2.1 and 2.2 can do so, for example, at the pivot / bearing point 23 by means of corresponding and provided on the respective flanges 3 and 5, not shown screws 24 and 25 or the like means in communication.

Die Segmente 20 der Trenneinrichtung 19 sind hierbei mit ihrer jeweiligen äußeren Stirnseite ringförmig ausgebildet und stirnseitig zueinander weisend angeordnet, und sie werden an einem jeweiligen, nicht näher beschriebenen Ringsteg gehalten, der durch das erste Teil 19.1 und zweite Teil 19.2 gebildet und in ebenfalls nicht näher beschriebener Weise an der Innenfläche der ersten und zweiten Teilfläche 2.1 und 2.2 der Mischkammer 2 lösbar angeordnet ist.The segments 20 of the separator 19 are in this case formed annularly with their respective outer end face and frontally arranged facing each other, and they are held on a respective annular web not described in detail, formed by the first part 19.1 and second part 19.2 and also not closer described manner on the inner surface of the first and second partial surface 2.1 and 2.2 of the mixing chamber 2 is detachably arranged.

Die innere Stirnseite jeweiliger Segmente 20 gegenüber der Umfangsfläche der Mischerwelle 8 oder auch einem entsprechenden Wellenabschnitt 8.2, 8.3 ist mit einem Abstand a ausgebildet (s. Figuren 1, 2).The inner end side of respective segments 20 relative to the peripheral surface of the mixer shaft 8 or a corresponding shaft section 8.2, 8.3 is formed with a distance a (s. FIGS. 1, 2 ).

Das zweite Trennmittel 22 kann wie das erste Trennmittel 19 und/oder neben der vorgenannten Ausführung beispielsweise auch scheibenförmig ohne Segmente 20 und Ausnehmungen 21 ausgebildet sein.The second separating means 22, like the first separating means 19 and / or in addition to the aforementioned embodiment, may also be designed in the form of a disk, for example, without segments 20 and recesses 21.

In den Figuren 5a und 5b ist die Anordnung der Wasserzuführung in das innere der Mischkammer 2 (Fig. 1 und 2) durch den Flansch 3 hindurch, dargestellt.In the FIGS. 5a and 5b is the arrangement of the water supply in the interior of the mixing chamber 2 ( Fig. 1 and 2 ) through the flange 3, shown.

Wie dazu aus den Figuren 5a und 5b schematisch ersichtlich ist, erfolgt hierbei die Wasserzuführung über eine Wasserzuführeinrichtung 3.1, welche über eine entsprechende Verbindungsanordnung, die beispielsweise am Umfang des Flanschs 3 angeordnet ist, und über eine weitere Verbindung zu einem ringförmigen Kanal 3.11 im Flansch 3, die beispielsweise über eine nicht näher dargestellte Bohrung hergestellt ist.How about the FIGS. 5a and 5b schematically, the water supply takes place via a water supply 3.1, which via a corresponding connection arrangement, which is arranged for example on the circumference of the flange 3, and via a further connection to an annular channel 3.11 in the flange 3, for example via a non-illustrated Hole is made.

Der ringförmige Kanal 3.11 ist hierbei durch Teilung des Flanschs 3 dadurch gebildet, dass beispielsweise in eine der inneren Flächen eines Flanschteils 3.0 oder 3.01 eine ringförmige Nut eingebracht ist, die mit einer Anzahl von entsprechenden und abstandsweise zueinander angeordneten Verteileröffnungen 3.2 im Bereich des Verlaufs der ringförmigen Nut verbunden ist.The annular channel 3.11 is in this case formed by division of the flange 3 in that, for example, in one of the inner surfaces of a flange 3.0 or 3.01 an annular groove is introduced, with a number of corresponding and spaced apart distribution openings 3.2 in the region of the course of the annular Groove is connected.

Durch Herstellung einer entsprechend ausgeführten, dichten Verbindung, beispielsweise mittels einer geeigneten Dichtungsmasse oder dergleichen und lagerichtiges, festes Zusammenfügen der Flanschteile 3.0 und 3.01 miteinander ist der ringförmige Kanal 3.11 im Flansch 3 gebildet, womit dieser nach Komplettierung mit den Teilflächen 2.1 und 2.2 sowie dem Flansch 5 und Bildung der Mischkammer 2 eine steuerbase und homogene Wasserzuführung über die hier radial oder in anderer Weise angeordnete Wasserzuführeinrichtung 3.1 in den Innenraum der Mischkammer 2 und dort befindlichen Trockenmörtel ermöglicht.By making a correspondingly executed, sealed connection, for example by means of a suitable sealant or the like and positionally correct, solid assembly of the flange 3.0 and 3.01 with each other, the annular channel 3.11 is formed in the flange 3, which this after completion with the faces 2.1 and 2.2 and the flange 5 and forming the mixing chamber 2 allows a tax base and homogeneous water supply via the here radially or otherwise arranged water supply 3.1 into the interior of the mixing chamber 2 and dry mortar located there.

Die gemäß den Erfindungen jeweils ausgebildete und innen definiert beschichtete Mischkammer ist vorzugsweise zum Mischen von Mörtel für einen mechanisierten Putzauftrag sowohl als Mischeinrichtung für schwer mischbaren Trockenmörtel zwischen einem Vorratsbehälter mit Fördereinrichtung und einer Exzenterschneckenpumpe für Putz- und/oder Betonmörtel einsetzbar, wobei die Mischwerkzeuge und Trenneinrichtungen als Verschleißteile ausgebildet sind.The respectively formed according to the inventions and internally defined coated mixing chamber is preferably used for mixing mortar for a mechanized plaster application as a mixing device for difficult to mix dry mortar between a reservoir with conveyor and an eccentric screw pump for plaster and / or concrete mortar, the mixing tools and separators are designed as wearing parts.

Darüber hinaus kann die Einrichtung für manuell zu verarbeitende Putz- oder Betonmischungen sowie für andere, spritzfähige Mischungen, wie Spritzputz- oder Farbmischungen, in Verbindung mit einer Mörtelpumpe eingesetzt werden.In addition, the device can be used for manually applied plaster or concrete mixtures as well as for other sprayable mixtures, such as spray plaster or color mixtures, in conjunction with a mortar pump.

Liste der verwendeten BezugszeichenList of reference numbers used

11
Mischbehältermixing tank
22
Mischkammermixing chamber
2.12.1
Unterteillower part
2.22.2
Oberteiltop
2.32.3
Trennflächeinterface
2.42.4
Innenflächepalm
33
Erster FlanschFirst flange
3.03.0
Inneres FlanschteilInner flange part
3.013:01
Äußeres FlanschteilOuter flange part
3.13.1
Wasserzuführeinrichtungwater supply
3.113.11
Kanalchannel
3.23.2
Verteileröffnungdistributor opening
44
Einlassöffnunginlet port
55
Zweiter FlanschSecond flange
66
Auslassöffnungoutlet
6.16.1
Ausnehmungrecess
88th
Mischerwellemixer shaft
8.18.1
Drehachseaxis of rotation
8.28.2
Wellenabschnitt, vornShaft section, front
8.38.3
Wellenabschnitt, hintenShaft section, rear
8.48.4
Endabschnitt, vornEnd section, front
8.58.5
Endabschnitt, hintenEnd section, rear
99
Erste StirnseiteFirst front page
1010
Erste KupplungsanordnungFirst clutch arrangement
1111
Zweite StirnseiteSecond front side
1212
Zweite KupplungsanordnungSecond coupling arrangement
1313
Leitflächebaffle
1414
Mischbrückemixed bridge
14.114.1
Körperkantebody edge
1515
Mischsteg, geradeMixer bar, straight
15.115.1
Mischblattmixing blade
1616
Mischsteg, geneigtMixer bar, inclined
1717
Steg, geradeFootbridge, straight
1818
Mischsteg, schräg gestelltMixing bridge, tilted
18.118.1
Mischblatt, schräg verstelltMixing blade, adjusted at an angle
1919
erstes Trennmittelfirst release agent
19.119.1
erstes Teilfirst part
19.219.2
zweites Teilsecond part
2020
Segmentsegment
2121
Ausnehmungrecess
2222
zweites Trennmittelsecond release agent
2323
Gelenkjoint
2424
Verschraubungscrew
2525
Verschraubungscrew
AA
Trockenbereichdry areas
BB
Nassbereichwet areas
CC
Schnittverlaufcallout
DD
Ansichtsrichtungview direction
aa
Innerer AbstandInner distance

Claims (14)

  1. A device for the continuous and intensive mixing of dry mortar with water, with a mixing receptacle (1) with radial separators (19; 22), a rotating mixer shaft (8) connected with a drive and possessing mixing tools (15; 16; 17; 18), an intake section for dry mortar with a water feeding facility (3.1), a mixing section and a discharge section for mixed mortar,
    characterised in that
    • the mixing receptacle (1) is arranged with a certain degree of inclination in the direction of transport and possesses an axially dividable, cylindrical mixing chamber (2) with end flanges (3; 5), with a concentric intake opening (4) at one end and a concentric discharge opening (6) with a concentric recess (6.1) at the other end,
    • a number of axial distributor openings (3.2) connected with the water feeding facility (3.1) are arranged on the inner side of the flange (3) in the area of the intake opening (4),
    • the mixing chamber (2) and the mixer shaft (8) are formed such as to be extended axially by a certain amount and the mixer shaft (8) is formed as a shaft section which possesses coupling arrangements (10; 12) at its ends (9; 11),
    • one of said coupling arrangements (10) is arranged outside the mixing chamber (2) in the area of the intake opening (4) and the other coupling arrangement (12) is arranged inside the mixing chamber (2),
    • a part of the mixer shaft (8) which rotates in the intake opening (4) possesses adjustable guide elements (13),
    • groups of exchangeable mixing tools (15) and (16) to (18) spaced such as to be offset to each other, possessing different geometries and set at different angles are arranged in combination with mixing blades (15.1) on the mixer shaft (8),
    • the mixing chamber (2) possesses the mixing tools (15; 16) and the separator (19) in the area of the intake opening (4), and in the area of the discharge opening (6) at least one further separator (22) is arranged between the mixing blades (15.1) and the mixing tools (17; 18) such as to be exchangeable and in a radial arrangement relative to the mixer shaft (8) in order to limit the intake pressure chamber and increase the charging pressure,
    • the mixing tools (15; 16) comprise straight and angled finger-like mixing elements and are arranged approximately centrically in the mixing chamber (2), while the mixing tools (17; 18) possess planar-shaped sections arranged distally on finger-like elements and are arranged in the area of the coupling arrangement (12), and
    • the inner surfaces of the mixing chamber (2) and the flanges (3; 5) possess a coating.
  2. A device for the continuous and intensive mixing of dry mortar with water according to Claim 1,
    characterised in that
    • the mixer shaft (8) is divided axially in the mixing chamber (2) and rotating shaft sections (8.2; 8.3) with inner end sections (8.4; 8.5) and an inner and an outer coupling arrangement (12; 10) are formed on an axis of rotation (8.1),
    • a gap is formed between the shaft sections (8.2; 8.3) in a mixing chamber section formed between the intake opening (4) and separator (19) arranged approximately centrally in the axial direction and the end sections (8.4; 8.5) are connected to each other by way of at least one radially arranged, essentially U-shaped mixing bridge (14) with an edge (14.1),
    • the mixing bridge (14) can be set to be tilted in its plane relative to the axis of rotation (8.1) in accordance with the direction of rotation, and during rotation the edge (14.1) comes into tangential contact with the inner surfaces (2.4) of the mixing chamber (2), and
    • a number of radial finger-like elements (17) with planar-shaped mixing elements (18) adjustable in angle formed at their ends are arranged on the shaft section (8.3) in the area between the separator (19) and the inside coupling arrangement (12), the distal outer edges of said mixing elements coming into tangential contact with the inner surfaces (2.4) of the mixing chamber (2) over the whole circumference during rotation.
  3. A device according to Claim 2, characterised in that two or several evenly distributed mixing bridges (14) are arranged around the circumference of the shaft sections (8.2; 8.3) such as to be adjustable.
  4. A device according to one of the Claims 2 or 3, characterised in that the mixing bridges (14) correspond with the straight and adjusted mixing tools (15; 16) arranged on the shaft section (8.2).
  5. A device according to one of the Claims 1 to 4, characterised in that the separators (19; 22) are disk-shaped or comprise at least a series of disk-like segments (20) arranged to point radially inwards and with a spacing to each other in the form of a ring on the inner surface (2.4) of the mixing chamber (2), the inner edges of said segments standing at a distance (a) from the shaft (8) or shaft section (8.3).
  6. A device according to Claim 5, characterised in that the segments (20) possess at least one recess (21).
  7. A device according to one of the Claims 1 to 6, characterised in that the separators (19; 22) and the mixing tools (13) to (18) are formed such as to be dividable and exchangeable.
  8. A device according to one of the Claims 1 to 7, characterised in that the mixing chamber (2) is formed by axially dividable partial areas (2.1; 2.2) and can hinged on the flanges (3; 5).
  9. A device according to one of the Claims 1 to 8, characterised in that the coating of the inner surfaces (2.4) of the mixing chamber (2) and flanges (3; 5) takes the form of a hardened and/or hydrophobic surface.
  10. A device according to one of the Claims 1 to 9, characterised in that the guide elements (13) are each adjusted at an angle (∇) to the axis of rotation (8.1) in the direction of rotation of the mixer shaft (8) and stand with spacing to the inner surface of the intake opening (4) at their outer circumference.
  11. A device according to one of the Claims 1 to 10, characterised in that the distributor openings (3.2) of the water feeding facility (3.1) are connected with a channel (3.11) arranged in the flange (3), are arranged in the form of a ring on the inner side of the flange (3) in the area of the intake opening (4) and face axially inwards.
  12. A device according to one of the Claims 1 to 11, characterised in that the mixer shaft (8) can be connected with a separate drive facility and with a facility for transport of the dry mortar on the one side and/or with a mortar pump on the other side, in which cases the coupling arrangements (10; 12) form a disconnectable coupling with a corresponding input or output drive shaft.
  13. A device according to one of the Claims 1 or 5 to 12, characterised in that the mixing blades (15.1) are formed as a group of at least two, preferably four mixing blades (15.1) which are adjustable in their angle and whose distal circumferential surfaces come into tangential contact with the inner surfaces (2.4) of the mixing chamber (2).
  14. A device according to one of the Claims 1 to 13, characterised in that the mixing chamber (2) is used as a disconnectable re-mixing facility between the supply container and the mortar pump with the flange (3) at the connection of the supply container and with the flange arrangement (5) at the connection of the mortar pump.
EP07018568A 2006-10-18 2007-09-21 Device for the continuous and intensive mixing of dry mortar Active EP1914056B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006049171A DE102006049171B4 (en) 2006-10-18 2006-10-18 Device for continuous and intensive mixing of dry mortar
DE102007030458A DE102007030458A1 (en) 2006-10-18 2007-06-29 Device for continuous and intensive mixing of dry mortar

Publications (3)

Publication Number Publication Date
EP1914056A2 EP1914056A2 (en) 2008-04-23
EP1914056A3 EP1914056A3 (en) 2009-07-29
EP1914056B1 true EP1914056B1 (en) 2011-01-19

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Application Number Title Priority Date Filing Date
EP07018568A Active EP1914056B1 (en) 2006-10-18 2007-09-21 Device for the continuous and intensive mixing of dry mortar

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EP (1) EP1914056B1 (en)
AT (1) ATE495867T1 (en)
DE (3) DE102006049171B4 (en)

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Also Published As

Publication number Publication date
ATE495867T1 (en) 2011-02-15
DE102007030458A1 (en) 2009-01-08
DE502007006295D1 (en) 2011-03-03
EP1914056A3 (en) 2009-07-29
DE102006049171A1 (en) 2008-04-30
DE102006049171B4 (en) 2009-01-15
EP1914056A2 (en) 2008-04-23

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