EP2754484A1 - Mischer mit konischem Drehbottich - Google Patents

Mischer mit konischem Drehbottich Download PDF

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Publication number
EP2754484A1
EP2754484A1 EP20140151224 EP14151224A EP2754484A1 EP 2754484 A1 EP2754484 A1 EP 2754484A1 EP 20140151224 EP20140151224 EP 20140151224 EP 14151224 A EP14151224 A EP 14151224A EP 2754484 A1 EP2754484 A1 EP 2754484A1
Authority
EP
European Patent Office
Prior art keywords
tank
conical
shutter
mixer according
rotation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20140151224
Other languages
English (en)
French (fr)
Other versions
EP2754484B1 (de
Inventor
Eric Brunquet
Christian Destombes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Skako Concrete
Original Assignee
Skako Concrete
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Skako Concrete filed Critical Skako Concrete
Priority to PL14151224T priority Critical patent/PL2754484T3/pl
Publication of EP2754484A1 publication Critical patent/EP2754484A1/de
Application granted granted Critical
Publication of EP2754484B1 publication Critical patent/EP2754484B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/18—Mixing in containers to which motion is imparted to effect the mixing
    • B28C5/26—Mixing in containers to which motion is imparted to effect the mixing rotating about a vertical or steeply inclined axis during the mixing, e.g. comprising a flat bottomplate rotating about a vertical axis, co-operating with blades or stirrers
    • B28C5/32—Mixing in containers to which motion is imparted to effect the mixing rotating about a vertical or steeply inclined axis during the mixing, e.g. comprising a flat bottomplate rotating about a vertical axis, co-operating with blades or stirrers with driven stirrers
    • B28C5/325—Mixing in containers to which motion is imparted to effect the mixing rotating about a vertical or steeply inclined axis during the mixing, e.g. comprising a flat bottomplate rotating about a vertical axis, co-operating with blades or stirrers with driven stirrers with several stirrer shafts
    • 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
    • B01F27/054—Deformable stirrers, e.g. deformed by a centrifugal force applied during operation
    • B01F27/0541—Deformable stirrers, e.g. deformed by a centrifugal force applied during operation with mechanical means to alter the position of the stirring 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
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
    • B01F27/1145—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections ribbon shaped with an open space between the helical ribbon flight and 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
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/13—Openwork frame or cage stirrers not provided for in other groups of this subclass
    • 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
    • B01F27/2122—Hollow shafts
    • 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
    • B01F27/23—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis
    • B01F27/232—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes
    • B01F27/2321—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes having different inclinations, e.g. non parallel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/60—Mixers with rotating receptacles rotating about a horizontal or inclined axis, e.g. drum mixers
    • B01F29/64—Mixers with rotating receptacles rotating about a horizontal or inclined axis, e.g. drum mixers with stirring devices moving in relation to the receptacle, e.g. rotating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/80—Mixers with rotating receptacles rotating about a substantially vertical axis
    • B01F29/83—Mixers with rotating receptacles rotating about a substantially vertical axis with rotary paddles or arms, e.g. movable out of the receptacle
    • 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
    • B01F35/452—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor by moving them in the plane of the opening
    • B01F35/4521—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor by moving them in the plane of the opening by rotating them about an axis perpendicular 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
    • B01F35/50—Mixing receptacles
    • B01F35/511—Mixing receptacles provided with liners, e.g. wear resistant or flexible liners
    • 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
    • B01F35/712—Feed mechanisms for feeding fluids
    • 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
    • B01F35/751—Discharging by opening a gate, e.g. using discharge paddles

Definitions

  • the invention relates to a rotary bowl mixer, and more particularly to a conical bowl mixer for any type of concrete.
  • the mixer according to the invention can also find a particular application for the mixing of foundry sand.
  • conical tank mixers fixed.
  • This conical tank is associated with stirring means, arranged axially in the tank, the tank comprising an exhaust hatch in the lower part for discharging the prepared concrete.
  • the stirring means generally consist of a worm associated with scrapers and / or kneading blades to allow homogenization of the concrete mixture during its preparation.
  • the materials cement, sand, gravel
  • water is gradually added thereto once the stirring means have been put in place. running, the worm to raise the materials at the bottom of the tank and mix them with water and scrapers to prevent a build-up of concrete on the wall of the tank.
  • Such a mixer involves a complex drive mechanism, in particular by the arrangement of tools, generally in the center of the tank and their rotation system within the fixed vessel, which does not allow, according to the findings of the inventor, to introduce the materials in the center of the tank but only at an edge.
  • the object of the present invention is to overcome all or part of the aforementioned drawbacks by providing a conical rotating bowl mixer.
  • an object of the present invention is to provide a mixer for mixing products in a reduced time.
  • Another object of the present invention is to provide such a mixer which is simple to maintain and clean.
  • Another object of the present invention is to provide such a mixer whose direction of rotation and the rotation frequency of the tools can be adjusted.
  • Another object of the present invention is to provide such a mixer which is inexpensive and simple to implement.
  • the mixer comprises means of articulation between said conical vessel and the frame, able to allow rotation of the conical vessel about its axis, as well as drive means able to actuate in rotation the conical vessel.
  • the mixing tools being arranged in fixed positions relative to the frame.
  • the mixer may have a feed opening of material in the center of the upper part of the tank.
  • the mixing tools are not arranged on the axis of the tank, but arranged around the latter.
  • said mixing tools internal to the tank, integral with the frame, comprise, in addition to the helical screw and said at least one scraper, a rapid mixing tool.
  • the helical screw, the rapid mixing tool and the at least one scraper are angularly distributed about the axis of rotation of the conical vessel.
  • the said at least one scraper - quick mixing tool, on the other hand, are similar.
  • the rapid mixing tool comprises a mixing end positioned in the immediate vicinity of the lower part of the conical wall of the tank and the shutter, in the closed position of the shutter.
  • the mixing end of the quick-mixing tool consists essentially of a flat element, the axis of rotation of the quick-mixing tool being contained in the plane of the flat element.
  • flat element being preferably symmetrical with respect to the axis of rotation of the rapid mixing tool.
  • the flat element of the mixing end is of inverted "A" shape, positioned in the axis of the rotation shaft of the rapid mixing tool, the rotation shaft being rigidly fixed to the horizontal wing of the "A" of the flat element.
  • said at least one scraper comprises a lower scraper and an upper scraper, angularly offset relative to one another about the axis of the tank, each of which is arranged partially over the height of the scraper.
  • conical tank able to scrape the wall of the conical tank, respectively on the lower part and the upper part of said conical tank.
  • said at least one scraper where appropriate said lower scraper can scrape, in addition to the conical wall of the tank, the wall of the shutter.
  • the mixer has means for pivoting between the shutter and its support, said pivoting means being of axis of rotation coaxial with the axis of rotation of the conical vessel, in the closed position of the shutter so that the shutter rotates integrally with the tank in the closed position of the shutter.
  • a jack makes it possible to move the shutter from the closed position to a detached position following a translation of direction parallel to the axis of the conical tank, the shutter / jack assembly being integral with an arm articulated on the frame to completely retract said shutter to said empty position.
  • the emptying device comprises a ring, removably attached to the conical tank, at the level of the lower opening, providing a seat for the shutter in the closed position and sealing between the shutter and the conical vessel.
  • the inner wall of the tank is covered by a ceramic shield, said ring for removing the dead space between the shield of the conical tank and the shutter in the closed position.
  • connection between the shutter and its support comprises elastomeric elements so as to allow disengagement of the shutter.
  • the mixer comprises liquid supply means in the tank arranged in such a way as to introduce the liquids at the level of said rapid mixing tool.
  • the mixer comprises means for alternating the direction of rotation of the tank.
  • said axis of rotation of the vessel is inclined relative to the vertical, preferably such that a generatrix of the vessel is substantially vertical.
  • said helical screw is replaced by a rotor having distinct blades arranged on the height and circumference of said rotor and inclined so as to allow the materials to be raised, similarly to a helical screw.
  • the general principle of the invention is therefore based on the implementation of a rotating bowl mixer, able to mix a mixture of different materials, powdery and liquid, and for concrete manufacturing for example.
  • a rotating bowl mixer capable of mixing various materials, comprises a frame 1, a conical tank 10, supported by the frame 1, closed at the top, and a drain device 13 in part lower comprising a lower opening 130 of the tank and a shutter 131 adapted to pass from a closed position to a drain position.
  • Mixing tools 20, internal to the conical bowl 10, comprise a helicoidal screw 21 extending over the height of the tank and at least one scraper 22, 22 'intended to scrape the wall of the conical tank 10.
  • the rotating bowl mixer shown on the figure 1 thus comprises a conical mixing tank 10, in which the mixing of the materials is carried out, and internal mixing tools 20.
  • the conical shaped mixing tank 10 comprises an upper part 11 having an upper opening, the cone being directed downwards.
  • the mixing tank 10 is rotatably disposed relative to the frame 1, by means of said hinge means 3.
  • These articulation means may comprise guide elements such as bearings, interposed between the vessel and the frame adapted to resume the load of the vessel and to allow rotation relative to the frame.
  • the drive means may comprise, according to one embodiment, a ring gear 40 fixed to said conical tank 10 and a gear motor 41, integral with the frame 1, meshing with said ring gear 41 so as to transmit the rotational movement from the engine to the ring gear 41.
  • the drive means 4 can enable the tapered vessel to be rotated alternately, in a first direction of rotation and in a second opposite direction of rotation, at intervals of time.
  • the upper opening of the tank 10 can be closed by means of a cover 9 having one or more material feed openings.
  • the mixing tank 10 also comprises the emptying device 13 in the lower part, at the end of the cone formed by the lower part.
  • a gutter may be arranged upstream of the emptying device so as to evacuate the concrete formed to a receptacle.
  • the internal mixing tools 20 comprise, in particular, the helical screw 21 comprising a rotation shaft around which a helical blade is disposed and is intended to stir and up the materials in the conical tank 10, at least in a first direction of rotation of the screw.
  • the mixer can thus have means for alternating the direction of rotation of the helical screw 21.
  • the helical screw 21 is used during mixing, most of the time, to raise the materials. Inverting the rotation of the screw, alternately, however, allows to remove the agglomerates of materials that can accumulate on the underside of the helical screw.
  • the helical screw 21 can be replaced, according to an embodiment illustrated in FIGS. Figures 12a and 12b , by a rotor 21 'having separate blades 27 arranged on the height and circumference and inclined so as to allow the materials to rise, similarly to said helical screw.
  • This rotor is compatible with the other tools, and in particular the scraper or scrapers 22, 22 'and the rapid mixing tool 23 which is described below.
  • the internal mixing tools 20 also comprise said at least one scraper 22, 22 'intended to scrape the wall of the tank 10. Said at least scraper 22, 22' is preferably firmly fixed to the frame 1.
  • the internal mixing tools 20 comprise two scrapers 22, 22 ', namely a lower scraper 22 and an upper scraper 22'.
  • the lower scraper 22 and the upper scraper 22 ' are angularly offset relative to each other about the axis of the conical vessel 10, in particular at an angle less than 45 °.
  • the lower scraper 22 and the upper scraper 22 ' are each partially arranged on the height of the conical tank 10, able to scrape the conical tank wall 10, respectively on the lower part 12 and the upper part 11 of said conical tank 10. More particularly, the lower scraper 22 for scraping the lower part 12 of the vessel, that is to say the generator of the formed cone, extends on the lower part of the height of the cone, and the scraper 22 'upper intended to scrape the upper part of the tank scrapes the upper portion of the cone, and extends over the upper part of the height of the cone.
  • the scrapers may be of number greater than two, for example three staggered scrapers, on the one hand, depending on the height of the tank to scrape respectively the tank on the lower part, an intermediate part. , and an upper part, and on the other hand angularly around the axis of the tank.
  • the lower scraper 22 can also scrape the wall of the shutter 131, in the closed position of the shutter 131.
  • the internal mixing tools 20 may also comprise a rapid mixing tool 23 comprising a rotation shaft 25 at the end of which is disposed a mixing end 24 intended to homogenize the mixture of materials in the tank.
  • rapid mixing tool is meant a tool intended to rotate at a speed of rotation greater than the rotational speed of the helical screw 21.
  • the motor / gear motor 26 of this tool can allow rotational speeds greater than 100 rpm, preferably greater than 150 rpm. In some cases, this tool can be used at much lower speeds, by for example, to deaerate the mixture.
  • the helical screw may be provided to rotate at a speed of between 50 and 100 rpm to provide an average linear speed of movement of the mixture of between 1m / s and 2m / s (i.e. 1.5m / s).
  • the mixing end 24 of the rapid mixing tool 23 is positioned in the immediate vicinity of the shutter 131 (in the closed position) and the lower part of the conical wall of the tank.
  • the mixing end 24 of the rapid mixing tool 23 may consist essentially of a flat element, in particular of inverted "A" shape, as illustrated in FIGS. figures 1 .and 9 .
  • the axis of rotation of the rapid mixing tool 23 is contained in the plane of the flat element.
  • this flat element is symmetrical with respect to the axis of rotation of the rapid mixing tool 23.
  • This mixing end 24 can thus be positioned in the axis of the rotation shaft 25, the rotation shaft being rigidly secured to the horizontal flange of the "A". As illustrated in figure 9 the tip of the "A" is flattened so as to optimize mixing in the immediate vicinity of the shutter 131.
  • the rotation shaft 25 is coaxial with the axis of symmetry of the "A" shaped mixing end. .
  • Such a mixing end 24 allows the rapid mixing tool to rotate at high speeds without causing strong product lifts.
  • the crumbling action of the mixing end 24 is obtained essentially at the outer edges of this end.
  • said helicoidal screw 21, the rapid mixing tool 23 and said at least one scraper 22 are angularly distributed around the axis of rotation of the conical vessel 10.
  • the conical tank 10 can be rotated in the helical screw direction 21, rapid mixing tool 23 and scrapers 22, 22 'and, simultaneously, the helical screw 21 is rotated in such a way as to raise the materials.
  • the material undergoes successively the action of the helical screw 21 which raises the material, the action of the rapid mixing tool 23 on which the material raised by the screw, and the action of the scraper or scrapers 22, 22 'which clean the tank, downstream of the rapid mixing tool.
  • This particular arrangement of said at least one scraper 22 positioned between the helical screw 21 (or its equivalent with rotor 21 ') and the rapid mixing tool 23 advantageously makes the configuration of the mixer unsymmetrical.
  • the angular position of the scraper 22, in particular the lower scraper, is preferably closer to the helicoidal screw 21 (or rotor 21 ') than to the rapid mixing tool 23.
  • This non-symmetrical configuration makes it possible to obtain different mixing flows, even optimized at the consistency of the mixture as a function of the direction of rotation of the conical vessel 10, or even of the rapid mixing tool 23.
  • the helical screw 21 (or rotor 21 'equivalent) preferably rotates in the same direction as the conical tank 10, so as to raise the products.
  • the conical vessel rotates in the direction-helicoidal screw 21-scraper 22- rapid mixing tool 23 (direction "+" according to the non-limiting example of the figure 12a ).
  • the mixing action is amplified because the helical screw 21 (or rotor 21 ') can act on a fraction of the mixture confined in the helical screw space 21 / scraper 22 (or rotor 21' / scraper 22).
  • the function of mixing by the scraper 22 by deflection and stretching of the flow is also amplified by the forced movement of the mixture by the rotation of the helical screw (or rotor 21 ') which preferably rotates in the same direction as the conical vessel 10, when said screw 21 (or rotor 21 ') back products.
  • the rapid mixing tool 23 is driven in the same direction (+ direction according to the figure 12a ).
  • the action of this fast mixing tool 23 is also amplified by the deflection of the flow by the scraper 22 which increases the stretching action of the mixture imposed by the rapid mixing tool.
  • the rapid mixing tool 23 is preferably driven in the same direction of rotation as the conical vessel to obtain a stretching of the product by rolling effect, favorable effect to the pasty or cohesive type mixture.
  • operation of the rapid mixing tool 23 in the opposite direction makes it possible to obtain a favorable shearing effect in a granular mixture.
  • the scraper (s) considered, making the mixer unsymmetrical are the scraper (s) positioned below the maximum level Nmax of the mixture in the tank. .
  • This type of scraper therefore comprises at least the lower scraper 22.
  • an scraper, upper 22 ' can be positioned above the maximum level of mixing Nmax in the tank. The function of this upper scraper 22 'is to return the glued products to the upper part of the tank, in the mixture, as illustrated in FIG. figure 12c .
  • this upper wiper 22 does not participate in the mixture and does not create a synergistic effect with the other tools, for the mixture, as developed above.
  • the position of this upper scraper 22 'relative to the other tools and in relation to the direction of rotation of the helical screw (or rotor 21 ') allowing the rise of the products is not critical for the mixing performance, unlike the lower wiper 22.
  • the upper scraper 22 ' can be positioned above the maximum level Nmax of mixing in the conical tank, advantageously positioned near the rapid mixing tool 23 so as to loosen the products of the conical tank 10 and to make them fall at the rapid mixing tool 23.
  • the mixer comprises liquid supply means 25 in the tank preferably arranged in such a way as to introduce the liquids directly at the level of the rapid mixing tool 23.
  • liquids may be introduced into the upper part of the rotational shaft 25 of the quick-mixing tool 23, inside the hollow rotation shaft, and then exit at the other end of the spindle. rotating shaft 25 at the quick mixing tool.
  • liquids may flow along the rotational shaft of the quick-mix tool on its outer surface.
  • the internal mixing tools 20, more particularly the helical screw 21 and the rapid mixing tool 23, can be driven by means of geared motors, separate and independent, respectively, at the end of the rotation shaft of each tool, at the level of the upper part of the tank.
  • the internal mixing tools can thus rotate at different speeds of rotation depending on the quality and quantity of the materials to be mixed.
  • the motors can be mounted on an inverted U-shaped structure 8, belonging to the frame 1, the structure 8 overlapping the conical tank 10.
  • this structure 8 can also accommodate the motor intended to drive the conical tank 10 in rotation.
  • the cover 9 closing the upper part 11 of the conical tank 10 can be retractable, at less in part and can move from an open position to a closed position. Additionally or alternatively, the cover 9 may also have a feed opening 7 of materials, visible on the Figures 4 and 5 , in the center of the upper part of the conical tank.
  • the arrangement of the internal mixing tools 20 thus allows the presence of said feed opening 7, in the axis of the tank.
  • the emptying device 13 comprises said lower drain opening 130, and the shutter 131 adapted to close the lower drain opening 130.
  • This shutter 131 is articulated about a coaxial axis A to the axis of rotation of the tank, in the closed position, so that it can rotate integrally with the tank 10 in the closed position of the shutter, the shutter 131 being then driven by the tank.
  • the pivoting means between the shutter 131 and its support may comprise a ball bearing 135 arranged around the axis in such a way as to allow the shutter 131 to rotate when it is secured to the conical tank 10, pressed against the latter.
  • a jack 132 or other actuator makes it possible to move the shutter 131 from the closed position to a detached position following a translation of direction parallel to the axis of the conical vessel. 20.
  • the shutter / jack assembly integral with an arm 134 can be moved in rotation by means of a hinge 137 between the arm 134 and the frame 1, in particular of axis parallel to the axis of the tank outside the field of the opening 130, and to the position of emptying the shutter.
  • the rotation of the arm 134 following the articulation 137 is preferably actuated by an actuator 138.
  • the shutter 131 may have a circular rib 139 with a breakage function, avoiding run-off on the mechanism (jack 132) for raising or lowering the shutter 131.
  • This mechanism, as well as the pivoting means can be protected inside a flexible sleeve 140, joining the shutter 131 and its support.
  • connection between the shutter 131 and its support comprises elastomeric elements 133 so as to allow disengagement of the shutter 131.
  • these elastomeric elements 133 are provided in particular between the rod and the piston of the cylinder 132. These elastomeric elements 133 allow the shutter 131 to close the tank and seal during rotation, even in the event of slight misalignment between the axis of rotation of the conical vessel 10 and the axis of rotation of the shutter 131, or to close the conical vessel 10 even when the opening 130 is not completely clean.
  • the conical tank may be in particular metal, the inner wall preferably covered with a ceramic shield.
  • the device the emptying device 13 may comprise, at the level of the lower opening 130 of the conical tank 10, a ring 136, removably attached to the conical tank 10, in particular by means of screws 137.
  • This ring 136 can be easily replaced in case of wear.
  • This ring 136 constitutes a seat for the shutter 131 in the closed position and seals between the shutter 131 and the conical tank 10.
  • this ring 136 preferably eliminates the dead space between the shield 15 of the conical tank and the shutter.
  • the seal between the shutter 131 and this ring 136 can be improved thanks to a circular seal 138, carried either by the shutter 131 or by said ring 136.
  • this ring 136 may have an L-shaped section, the horizontal wing having holes for fixing (ie screws) for securing the ring 136 to the conical bowl 10, the inside of the vertical wing L of the ring 136 being intended to engage with the shutter, in the form of a disk, by nesting.
  • the upper end of this vertical wing is of thickness substantially equal to the thickness of the ceramic shield 15 so as to cover the lower edge of the shield by removing the dead space.
  • the axis of rotation of the conical vessel 10 may be inclined, preferably such that a generatrix of the conical vessel 10 is substantially vertical. Such an arrangement of the conical vessel 10 in particular makes it easier to empty the concrete once it is finished.
  • a mixer as described above is especially used for mixing concrete and can also be used for mixing foundry sand.
EP14151224.4A 2013-01-15 2014-01-15 Mischer mit konischem Drehbottich Active EP2754484B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14151224T PL2754484T3 (pl) 2013-01-15 2014-01-15 Mieszalnik z obrotowym zbiornikiem stożkowym

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1350325A FR3000906B1 (fr) 2013-01-15 2013-01-15 Melangeur a cuve conique tournante

Publications (2)

Publication Number Publication Date
EP2754484A1 true EP2754484A1 (de) 2014-07-16
EP2754484B1 EP2754484B1 (de) 2016-09-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP14151224.4A Active EP2754484B1 (de) 2013-01-15 2014-01-15 Mischer mit konischem Drehbottich

Country Status (6)

Country Link
EP (1) EP2754484B1 (de)
DK (1) DK2754484T3 (de)
ES (1) ES2608555T3 (de)
FR (1) FR3000906B1 (de)
PL (1) PL2754484T3 (de)
PT (1) PT2754484T (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104587864A (zh) * 2015-01-09 2015-05-06 长兴明晟冶金炉料有限公司 一种冶金物料搅拌装置
CN104690833A (zh) * 2015-03-16 2015-06-10 天津炬实科技发展有限公司 一种小型水泥搅拌机
CN105170001A (zh) * 2015-08-25 2015-12-23 晋江兴翼机械有限公司 组合式搅拌装置
EP3189889A1 (de) * 2016-01-05 2017-07-12 Ireks GmbH Mischvorrichtung und mischwerkzeug
CN107053477A (zh) * 2017-03-09 2017-08-18 长安大学 立式斜轴混凝土搅拌机
CN107497314A (zh) * 2017-09-29 2017-12-22 白皓 一种便于清洗的混合机
CN110370459A (zh) * 2019-07-26 2019-10-25 汉寿县恒伟混凝土有限公司 一种三速混凝土搅拌装置
CN110608976A (zh) * 2019-10-19 2019-12-24 临安鼎昇建材有限公司 一种用于检测混凝土外加剂适应性的装置
CN112223539A (zh) * 2020-09-23 2021-01-15 任仲昊 一种混合效果好的搅拌设备

Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
CN109261023A (zh) * 2018-11-17 2019-01-25 镇江市美鑫塑料粉末有限公司 一种粉末涂料混料机
CN110732270B (zh) * 2019-11-19 2021-11-09 陕西睿浩生物有限公司 一种肥料及肥料加工系统与肥料加工方法

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EP0737507A2 (de) * 1995-03-29 1996-10-16 Etablissements Bernard Lazareth Mischer mit rotierendem Behälter
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EP1121193A1 (de) 1999-10-21 2001-08-08 Harald Kniele Zwangsmischer, insbesondere als betonmischer
JP2004130172A (ja) * 2002-10-09 2004-04-30 Kobe Steel Ltd ミキサー
JP2005296805A (ja) * 2004-04-12 2005-10-27 Fujiki:Kk 材料混合法及び混合機
EP1842583A1 (de) 2006-04-07 2007-10-10 Couvrot Mischmaschine mit ortsfestem Behälter, insbesondere zum Mischen von feuchten oder trockenen Bestandteilen, zur Herstellung von Beton

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FR479883A (fr) * 1913-09-09 1916-05-19 Antoine Jeandet Pétrin mécanique
FR2242138A1 (de) * 1973-08-28 1975-03-28 Bahr Albert
EP0737507A2 (de) * 1995-03-29 1996-10-16 Etablissements Bernard Lazareth Mischer mit rotierendem Behälter
DE19621286A1 (de) * 1996-05-25 1997-11-27 Neuenkirchener Eisengieserei U Misch- und Knetmaschine
EP1121193A1 (de) 1999-10-21 2001-08-08 Harald Kniele Zwangsmischer, insbesondere als betonmischer
US6390664B1 (en) * 1999-10-21 2002-05-21 Harald Kniele Compulsory mixer used, in particular, as a cement mixer
JP2004130172A (ja) * 2002-10-09 2004-04-30 Kobe Steel Ltd ミキサー
JP2005296805A (ja) * 2004-04-12 2005-10-27 Fujiki:Kk 材料混合法及び混合機
EP1842583A1 (de) 2006-04-07 2007-10-10 Couvrot Mischmaschine mit ortsfestem Behälter, insbesondere zum Mischen von feuchten oder trockenen Bestandteilen, zur Herstellung von Beton

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104587864A (zh) * 2015-01-09 2015-05-06 长兴明晟冶金炉料有限公司 一种冶金物料搅拌装置
CN104690833A (zh) * 2015-03-16 2015-06-10 天津炬实科技发展有限公司 一种小型水泥搅拌机
CN105170001A (zh) * 2015-08-25 2015-12-23 晋江兴翼机械有限公司 组合式搅拌装置
EP3189889A1 (de) * 2016-01-05 2017-07-12 Ireks GmbH Mischvorrichtung und mischwerkzeug
CN107053477A (zh) * 2017-03-09 2017-08-18 长安大学 立式斜轴混凝土搅拌机
CN107497314A (zh) * 2017-09-29 2017-12-22 白皓 一种便于清洗的混合机
CN110370459A (zh) * 2019-07-26 2019-10-25 汉寿县恒伟混凝土有限公司 一种三速混凝土搅拌装置
CN110608976A (zh) * 2019-10-19 2019-12-24 临安鼎昇建材有限公司 一种用于检测混凝土外加剂适应性的装置
CN112223539A (zh) * 2020-09-23 2021-01-15 任仲昊 一种混合效果好的搅拌设备

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PL2754484T3 (pl) 2017-04-28
FR3000906B1 (fr) 2015-03-06
FR3000906A1 (fr) 2014-07-18
DK2754484T3 (en) 2017-01-09
EP2754484B1 (de) 2016-09-21
PT2754484T (pt) 2016-12-27
ES2608555T3 (es) 2017-04-12

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