WO2013071327A2 - Mélangeur continu ainsi que dispositif et procédé pour la fabrication de pierre artificielle au moyen du mélangeur continu - Google Patents

Mélangeur continu ainsi que dispositif et procédé pour la fabrication de pierre artificielle au moyen du mélangeur continu Download PDF

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Publication number
WO2013071327A2
WO2013071327A2 PCT/AT2012/050177 AT2012050177W WO2013071327A2 WO 2013071327 A2 WO2013071327 A2 WO 2013071327A2 AT 2012050177 W AT2012050177 W AT 2012050177W WO 2013071327 A2 WO2013071327 A2 WO 2013071327A2
Authority
WO
WIPO (PCT)
Prior art keywords
continuous mixer
filling opening
drum
shaft
filling
Prior art date
Application number
PCT/AT2012/050177
Other languages
German (de)
English (en)
Other versions
WO2013071327A3 (fr
Inventor
Franz KAGER
Original Assignee
Berndorf Band Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from ATA1713/2011A external-priority patent/AT511804B1/de
Application filed by Berndorf Band Gmbh filed Critical Berndorf Band Gmbh
Publication of WO2013071327A2 publication Critical patent/WO2013071327A2/fr
Publication of WO2013071327A3 publication Critical patent/WO2013071327A3/fr

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Classifications

    • 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
    • B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/005—Devices or processes for obtaining articles having a marble appearance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/53—Mixing liquids with solids using driven stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/57—Mixing high-viscosity liquids with solids
    • 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
    • B01F27/60—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
    • 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
    • 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
    • B01F35/715—Feeding the components in several steps, e.g. successive steps
    • 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
    • B01F35/7173—Feed mechanisms characterised by the means for feeding the components to the mixer using gravity, e.g. from a hopper
    • B01F35/71731—Feed mechanisms characterised by the means for feeding the components to the mixer using gravity, e.g. from a hopper using a hopper
    • 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
    • B01F35/75415—Discharge mechanisms characterised by the means for discharging the components from the mixer using gravity
    • 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
    • B01F35/7547—Discharge mechanisms characterised by the means for discharging the components from the mixer using valves, gates, orifices or openings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
    • B28B13/028—Deflecting the flow of the unshaped material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/12—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein one or more rollers exert pressure on the material
    • B28B3/123—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein one or more rollers exert pressure on the material on material in moulds or on moulding surfaces moving continuously underneath or between the rollers, e.g. on an endless belt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/242—Moulding mineral aggregates bonded with resin, e.g. resin concrete
    • B29C67/245—Moulding mineral aggregates bonded with resin, e.g. resin concrete for making articles of indefinite length
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/14—Polyepoxides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/16—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/18—Polyesters; Polycarbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/44—Compression means for making articles of indefinite length
    • B29C43/48—Endless belts
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/54—Substitutes for natural stone, artistic materials or the like

Definitions

  • the invention relates to a continuous mixer, comprising at least one rotatably mounted shaft with a plurality of arranged on the shaft and obliquely aligned to the shaft blades, a first filling opening and one thereof in the longitudinal direction of the at least one shaft spaced outlet opening. Furthermore, the invention relates to a blade for a continuous mixer of the type mentioned with a mounting region for mounting the blade on a shaft of the continuous mixer.
  • the invention relates to an apparatus for producing a stone made of artificial stone material with a double belt press with a lower belt and a top belt, the device having a loading device for feeding the double belt press with a material for the plate.
  • the invention relates to a method for producing an intermediate for the production of artificial stone.
  • the invention relates to a method for producing a plate made of artificial stone material consisting of a mineral filler and a polymeric binder and an artificial stone plate or two-component plate produced by this method.
  • a method for the continuous production of plates made of artificial stone material using a double-belt press wherein a molding compound is pressed, which comprises a mixture of a mineral filler and a polymeric binder.
  • the binder is selected from polyester, polyurethane or epoxy resins, wherein the molding compound comprises 85% to 95% filler and 5% to 15% binder.
  • the filler may preferably be selected from stone material, marble powder, quartzite, quartz or a mixture thereof, with a particle size of 1 ⁇ to 10 mm. Furthermore, pigments, dyes, mirror or glass fragments may be added.
  • a double belt press with a vibrator in the region of a precompression zone is used in order to achieve a homogeneous distribution of the molding compound.
  • the known device is very expensive to manufacture due to the vibration device.
  • Another disadvantage of the known method or the known device is that due to poor transport properties of the molding compound between the bands of the double belt press, the size of the plates which can be produced, is greatly limited. Also, the sizes of areas of the same color and the distribution of these areas on the plates can not be influenced well.
  • This object is achieved with a continuous mixer of the aforementioned type, which has a second filling opening arranged between the first filling opening and the outlet opening. Furthermore, the object of the invention with a blade of the type mentioned for such a continuous mixer is achieved, wherein the blade at least partially consists of a mixture of a mineral filler, in particular rock, and a polymeric binder, in particular resin. In addition, the object of the invention is achieved with a device of the type mentioned for producing a plate made of artificial stone material, wherein the charging device comprises at least one continuous mixer of the type mentioned above.
  • the object of the invention with a method for producing an intermediate product for the production of artificial stone is achieved, wherein the at least one shaft of a continuous mixer of the above type is set in rotation and in the first filling opening a mineral filler, especially rock, and in the second filling opening a polymeric binder, in particular resin, is filled.
  • the object of the invention with a method for producing a plate made of artificial stone material consisting of a mineral filler and a polymeric binder is achieved, wherein in a first step, an intermediate product is prepared by a method of the type mentioned above, which in at least one further step the plate is pressed.
  • an artificial stone plate or two-component plate which is produced by a method of the type mentioned.
  • Simple continuous mixers are horizontal continuous mixers and basically known. They are usually equipped with fast-rotating impellers and intended for mixing floury, granular, fibrous or flaky carriers with liquids.
  • the now presented continuous mixer with an additional filling opening allows the very thorough mixing of the substances supplied to the mixer. This has a particularly positive effect on the mixture obtained when the substance introduced into the second filling opening is or contains a binding agent for binding the substance introduced into the first filling opening. As a result, lump formation and insufficient mixing of the two substances are avoided, as this can easily happen when both substances are filled together in a filling opening of a continuous mixer according to the prior art.
  • the continuous mixer is therefore suitable for the above-mentioned method for producing an intermediate for the production of artificial stone, in which a mineral filler, in particular rock, and in the second filling opening a polymeric binder, in particular resin, is filled in the first filling opening.
  • the intermediate product preferably has a proportion of the mineral filler of at least 60%, and / or a particle size of the mineral filler is 1 ⁇ m to 10 mm.
  • the presented continuous mixer can also be used for mixing other substances. Mixing is particularly well achieved with a continuous mixer in which the distance between the first filling opening and the second filling opening corresponds to the length which requires the material for forming a constant vortex, for which the first filling opening is specified.
  • the polymeric binder is therefore supplied to a stable vortex of the mineral filler, resulting in a particularly good mixing of the two substances.
  • first and the second filling opening and the outlet opening are aligned transversely to the at least one shaft, in particular normal thereto, wherein the first and the second filling opening are arranged rotated substantially 180 ° relative to the outlet opening.
  • the flow mixer can be gravity filled and emptied when the filler openings face up and the outlet openings face down.
  • the blades each comprise an angle of substantially 180 °. In this way, both a good material transport and a good mixing of the two filled in the filling material is ensured.
  • the blades are aligned in their entirety along at least one helix. In this way, a promotion of the mixture to the outlet opening causes or at least favors.
  • the blades can either be aligned along a helix or along several helixes that are angularly offset.
  • the at least one helix has a constant pitch.
  • the material is conveyed evenly through the continuous mixer.
  • the helix (s) has / have a variable pitch.
  • the slope may increase towards the outlet opening in order to avoid clogging of the continuous mixer and to ensure a loose mixing of the two substances filled into the filling openings.
  • the cross section of the first filling opening substantially corresponds to the area of the circle to which the blades are inscribed. This serves to ensure optimum processing of the substance filled in the first filling opening. If the cross-section of the first filling opening is too large, too much material could enter the mixer. If the cross-section is too small, the material may backlog.
  • the blades of the passage at least in sections consist of a mixture of a mineral filler, in particular rock, and a polymeric binder, in particular resin.
  • abrasion of the blades can be kept low, and unavoidable abrasion reduces the quality of the mixture produced with the continuous mixer barely.
  • the blades consist of the same material for the production of which the continuous mixer is specified. In this way, unavoidable wear of the blades does not substantially reduce the quality of the mixture produced by the continuous mixer, since the material of the blades and the mixture produced are identical or substantially identical. Small deviations in the composition of the blade material hardly affect the mixture produced.
  • the feeding device of the device for producing a plate made of artificial stone material comprises at least one drum rotatable about its longitudinal axis and one continuous mixer of the type disclosed above per drum, wherein one continuous mixer per drum for feeding the same upstream ,
  • the granules may have rounded particles, for example with a surface of 1 - 40cm 2 .
  • the upstream continuous mixer also ensures a particularly good mixing of the ingredients contained in the granules.
  • NATURALLY Lich the mixing of the components is not limited to the continuous mixer, but takes place to a certain extent even in said drum.
  • the granulation process is not necessarily limited to the drum, but may begin to some extent already in the continuous mixer. The boundaries between the mixing process and the granulation process are therefore fluid. By an appropriately sized flow mixer, it is certainly possible that almost completely mixed in the drum, get rid of the necessary ingredients for the granules.
  • a chute or an at least partially transparent tube is arranged between the outlet opening of a continuous mixer and a respective drum. In this way, not only the mixture emerging from the continuous mixer can be conveyed into the drum, but also be examined, in particular visually. Disturbances in the mixing process can therefore be detected quickly.
  • a slide also offers the simple possibility of sampling for quality assurance.
  • An advantageous variant of the invention provides that at an outlet opening of the drum, a distributor device for distributing a granule emerging from the drum is provided.
  • a distributor device for distributing a granule emerging from the drum is provided.
  • the distributor device is designed as a turntable.
  • the turntable is driven and rotated about an axis normal to its surface. Here he hurls the granules on the lower belt or on a conveyor belt upstream of the lower belt. In this way, a homogeneous distribution of the particles of the granules can be ensured in a simple manner. This is particularly advantageous when several drums are used to produce the granules, which each produce a granulate of a single color.
  • a laterally partially surrounded aperture is provided on the turntable, wherein the aperture in the transport direction of the granules in the direction of the double belt press is open.
  • the arrangement of the aperture defines a discharge direction for the granules and there is no loss due to the exit of the colored granules in undesired directions.
  • An advantageous variant provides that the diaphragm is arranged stationary relative to the turntable.
  • the turntable is coated with a layer of an elastomeric material, in particular rubber.
  • a substantial improvement in the further transport of the granules from the turntable to the lower belt can be achieved.
  • An advantageous development of the invention consists in that at least one feed device is provided between the at least one drum and distributor device. This can be a targeted management of the granules from the drum to the distribution device, such as the turntable done.
  • the feed unit may be funnel-shaped.
  • At least two drums are provided. This makes it possible to produce each granule with each drum, which differs in color from the granules produced with another drum.
  • the passage is sheared only used for mixing components of the artificial stone material.
  • a granulation process does not run in the continuous mixer or only to a small extent.
  • this filling mixture of a starting material for the production of the plate is filled into a drum and in a following step granules are produced by rotation of the drum in a granulation process from the filling mixture.
  • the drum is fed to a filling mixture, which has at least 60% of stone material, in particular stone powder, with a particle size of 1 ⁇ to 10 mm. After the granules have been produced, they can be distributed homogeneously over the lower belt or via a conveyor belt upstream of the lower belt.
  • a plate-shaped granulate can be made from the homogeneously distributed granules. shaped preform are produced, which is subsequently fed to the double belt press.
  • the granules are prepared directly in the continuous mixer and distributed directly without further processing step in a drum on the lower belt or on a belt upstream of the lower belt and then pressed as described above to form a plate.
  • the intermediate product ie in this case the granules
  • the intermediate product can also be applied to a fabric-like carrier, in particular a fiber mat, and pressed.
  • the granulation process is carried out until the particles of the granules produced with the drum have a predetermined sphericity.
  • the granulation process is carried out until the particles have a sphericity according to Rittenhouse of 0.75-0.97, wherein the particles of the granules may have a particle size with a diameter of 5 mm - 30 mm.
  • Fig. 1 is a perspective view of a device according to the invention
  • Fig. 5 is a side view of the feeder of Fig. 4;
  • Fig. 6 is a view of the feeder in the direction 6 in Fig. 5;
  • Fig. 7 is a view of the feeder from the direction 7 in Fig. 5;
  • Figure 8 is a section along the line 8 - 8 in Fig. 5;
  • Fig. 9 is a view of the feeder from the direction 9 in Fig. 7;
  • Fig. 10 is a plan view of the feeder of Fig. 5;
  • FIG. 12 shows an exemplary continuous mixer
  • FIG. 13 like FIG. 8, only with upstream continuous mixers
  • FIG. 14 like FIG. 10, only with upstream continuous mixers
  • 16 shows a continuous mixer combined with a drum.
  • a device 1 according to the invention has a double belt press with a lower belt 2 and an upper belt 3.
  • the illustrated device 1 further comprises a charging device 4, which, as can be seen from FIGS. 1 to 10, comprises two drums 5 and 6.
  • the drums 5 and 6 are each rotatably mounted about their longitudinal axes, which are provided in Figs. 6 and 7 with the reference numerals al and a2.
  • the drums 5 and 6 can, as shown, be of similar design.
  • a filling mixture is filled, which color particles are added.
  • the filling mixture may, for example, have at least 60% of stone material, in particular stone meal, with a particle size of 1 ⁇ m to 10 mm.
  • polymers are added as binders to the filling mixture.
  • the filling mixture can be composed, as it has become known from the aforementioned WO 2010/115225.
  • binders polyester polyurethane or epoxy resins may be provided, and the molding compound 85% to 95% filler and 5% to 15% binder.
  • the filler may preferably consist of stone material, marble powder, quartzite, quartz or a mixture thereof and have a particle size of 1 ⁇ to 10 mm.
  • the number of drums 5 and 6 can be varied according to the number of desired colors for the artificial stone slab 7 to be produced.
  • a granulate of a color is produced with a drum 5 and 6, wherein the colors of the granules produced with the drums 5 and 6 differ from each other.
  • a granulate of white color can be produced with the drum 5 and a granulate of black color can be produced with the drum 6.
  • the drums 5 and 6 may have drivers mounted in their interior, which are provided with the reference numerals 8 and 9 in FIG.
  • the drivers 8, 9 may, for example, have the form of strips.
  • the filling material is filled into inlet openings of the drums 5 and 6 and granulated in the drums 5 and 6 by rotation of the drums 5 and 6 until a granule is obtained from the filling material whose particle size has a given sphericity and specific grain size.
  • the number of rotations of the drums 5 and 6 per unit time or the energy supplied determine the desired properties of the resulting granules.
  • the resulting granules leaving the respective drum 5, 6 have a Rittenhouse sphericity of 0.75-0.97 and a grain size of between 5 and 30 mm.
  • FIG. 11 shows the standard set for determining the sphericity according to Rittenhouse. Due to the grain size of the granules and the size of the corresponding colored surfaces of the artificial stone slab 7 can be influenced in a simple manner. By an inclined arrangement of the drums 5, 6, the granules produced, which has the above-mentioned properties, can fall out of the corresponding drum 5 or 6.
  • the colored granules 10 and 11 emerging from the drums 5 and 6 are applied to a distributor device 11 via a feed device 10 having a receiving region and a delivery region.
  • the feeder 10 may be formed, for example, funnel-shaped or as a funnel.
  • the distribution device 11 fed by means of the delivery device 10 is arranged below the outlet openings of the drums 5 and 6.
  • the distribution device 11 may be formed, for example, as a driven turntable, as shown in FIG. 3 can be seen.
  • the turntable 11 can have a surface coated with an elastomeric material, for example rubber, in order to better distribute the granulate on the lower belt 2 or the conveyor belt 12.
  • an elastomeric material for example rubber
  • the turntable 11 may be partially surrounded by a diaphragm 15 in the circumferential direction.
  • the aperture 15 may be open in the transport direction of the lower belt 2 and the conveyor belt 12, as can be seen in FIG.
  • the granules distributed homogeneously on the lower belt 2 or the conveyor belt 12 can be compacted by means of supercharging rollers 13 and 14 (FIGS. 3, 4, 10) to form a plate-shaped preform of defined height. Subsequently, the preform is pressed in the double belt press to the plate 7, wherein under double belt press heating element for curing the plate 7 may have.
  • the granules can also be applied to a fabric-like carrier, in particular a fiber mat, and pressed.
  • FIG. 12 now shows an exemplary continuous mixer 16, which comprises a tubular housing with a shaft 17 arranged therein and rotatably mounted, in longitudinal section and cross section. On the shaft 17 are a plurality of obliquely aligned with the shaft 17 blades 18 arranged. Furthermore, the continuous mixer 16 (in particular its housing) comprises a first filling opening 19, an outlet opening 20 spaced therefrom in the longitudinal direction of the at least one shaft 17, and a second filling opening 21 arranged between the first filling opening 19 and the outlet opening 20.
  • the continuous mixer 16 may be used for mixing a substance filled in the first filling opening 19 and a substance filled in the second filling opening 21, wherein the mixture at the outlet opening 20 can be removed. It is therefore advantageous if the distance between the first filling opening 19 and the second filling opening 21 corresponds to the length which requires that material for forming a constant vortex, for which the first filling opening 19 is specified. At the second filling opening 21 there is then a stable vortex of the substance introduced into the first filling opening 19, whereby a mixing with the substance introduced into the second filling opening 21 succeeds particularly well. Instead of more or less pure substances or materials, it is of course also possible for any mixtures thereof to be introduced into the first filling opening 19 and / or into the second filling opening 21.
  • the first and the second filling openings 19, 21 as well as the outlet opening 20 are aligned transversely to the at least one shaft 17 (in this example, even normal thereto), the first and the second filling opening 19, 21 are arranged opposite the outlet opening 20 substantially rotated by 180 °. In this way, the materials can be filled by gravity in the flow mixer 16 and the resulting mixture by means of gravity from the continuous mixer 16 are removed.
  • the blades 18 each comprise an angle of substantially 180 ° and are aligned in their entirety along a helical line having a constant pitch.
  • the blades may have an angle of, for example, only 30 ° and be arranged along a helical line of variable pitch, in particular along a helix with an incline increasing to the outlet opening 20.
  • the cross section of the first filling opening 19 is smaller than the area of the circle to which the blades 18 are inscribed.
  • the cross section of the first filling opening 19 substantially corresponds to the area of that circle, which the blades 18 are inscribed, and the second filling opening 21 is smaller than the first filling opening 19.
  • the blades 18 consist at least in sections of a mixture of a mineral filler, in particular rock, and a polymeric binder, in particular resin. It is particularly advantageous if the blades 18 are made of the same material for whose production the continuous mixer 16 is specified. As a result, the quality of the intermediate used for the production of artificial stone by unavoidable abrasion of the blades or even breakage thereof is not or only slightly affected.
  • the continuous mixer 16 it is now possible to produce a mixture of starting materials, which contains the artificial stone to be produced. This mixture can be supplied to the drums 5, 6 of the device already described in order to produce artificial stone therefrom. For this purpose, a continuous mixer 16 is ever upstream of a drum 5, 6 for feeding the same.
  • FIG. 13 shows an exemplary device with only the continuous mixer 16 upstream of the drum 5 being visible.
  • the starting materials to be mixed are filled.
  • a mineral filler in particular rock
  • a polymeric binder in particular resin
  • the finished mixture falls from the outlet opening 20 on a chute and from there into the drum 5.
  • Visual control would also be possible, for example, when the mixture is transported over a transparent tube.
  • the use of opaque pipes is possible, if a constant visual inspection is not required.
  • the mixture is now granulated in the drum 5 in the manner already described above and then pressed into an artificial stone.
  • the function of the arrangement shown in FIG. 14 is virtually identical to the function of the arrangement shown in FIG.
  • the flow mixer 16 are not aligned transversely to the conveyor belt 12, but along it. Under certain circumstances, certain guidelines for setting up the device can be better met in this way.
  • FIG. 15 now shows arrangements which are similar to the arrangements shown in FIGS. 8 and 13, respectively, but the use of drums 5 and 6 is dispensed with in FIG. Instead, the materials supplied to the continuous mixer 16 are granulated directly in the continuous mixer 16 and then pressed in the manner already described to artificial stone plates or two-component plates.
  • a drum 5 is connected by means of a plurality of radial arms directly to the shaft 17 of the continuous mixer.
  • the bearing at the right end of the shaft 17 is connected in a similar manner via a plurality of radial arms to the housing of the continuous mixer.
  • the blades 18 rotate synchronously with the drum 5, so that the filled into the first filling port 19 component is mixed and mixed at the second filling opening 21 with the component filled there, so that in the drum 5, a more or less homogeneous mixture of mentioned components and granulated there.
  • 16 may also be provided in a further variant of the continuous mixer that between the shaft 17 and the drum 5, a transmission, in particular a planetary gear is provided. It is also conceivable, for example, that the arranged in an axis shaft 17 and the drum 5 are connected to each other neither directly nor via a transmission, but are driven by two separate motors.
  • the presented continuous mixer can be used in an arrangement according to FIG. 15. It would also be conceivable, however, to arrange the combined continuous mixer along the conveyor belt 12 and directly above it (see also FIG. 14). In this way creates a particularly compact arrangement. If a plurality of continuous mixers are required, they can be set slightly inclined relative to the conveying direction of the conveyor belt 12 and arranged next to one another, such that the granules produced in the various continuous mixers fall successively onto the conveyor belt 12. Of course, distribution devices 11 can be arranged under the respective continuous mixers.
  • the mixing of the constituents in the examples shown in FIGS. 13, 14 and 16 is not limited to the continuous mixer 16, but to a certain extent also takes place in the drums 5, 6.
  • the granulation process is not necessarily limited to the drum 5, 6, but may to a certain extent begin already in the continuous mixer 16. The boundaries between the mixing process and the granulation process are therefore fluid.
  • an appropriately sized flow mixer 16 it is certainly possible that in the drum 5, 6 almost completely mixed, get rid of the necessary ingredients for the granules.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

L'invention concerne un mélangeur continu (16) qui comprend au moins un arbre (17) monté rotatif, muni de plusieurs pales (18) disposées sur l'arbre (17) et orientées en biais par rapport à cet arbre (17). De plus, le mélangeur continu (16) comporte un premier orifice de remplissage (19), un orifice d'évacuation (20) éloigné de ce dernier dans la direction longitudinale dudit au moins un arbre (17), ainsi qu'un second orifice de remplissage (21) situé entre le premier orifice de remplissage (19) et l'orifice d'évacuation (20). L'invention concerne en outre une pale (18) pour un mélangeur continu (16) du type susmentionné, un dispositif (1) et un procédé pour la fabrication d'une dalle (9) en pierre artificielle au moyen dudit mélangeur continu (16) ainsi qu'un procédé d'élaboration d'un produit intermédiaire pour la fabrication de pierre artificielle.
PCT/AT2012/050177 2011-11-17 2012-11-15 Mélangeur continu ainsi que dispositif et procédé pour la fabrication de pierre artificielle au moyen du mélangeur continu WO2013071327A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ATA1713/2011A AT511804B1 (de) 2011-11-17 2011-11-17 Vorrichtung zur herstellung einer platte aus kunststeinmaterial
ATA1713/2011 2011-11-17
ATA726/2012A AT512579A1 (de) 2011-11-17 2012-06-28 Durchlaufmischer sowie Vorrichtung und Verfahren zur Herstellung von Kunststein mit Hilfe des Durchlaufmischers
ATA726/2012 2012-06-28

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WO2013071327A2 true WO2013071327A2 (fr) 2013-05-23
WO2013071327A3 WO2013071327A3 (fr) 2013-08-22

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110015491A (zh) * 2019-05-17 2019-07-16 郑州贝贝生物科技有限公司 一种土壤农药残留检测用样本存储装置
EP3245035B1 (fr) * 2015-01-16 2019-10-30 IPCO Germany GmbH Procédé et dispositif de production des granules de matière thermoplastique
CN112495209A (zh) * 2020-12-04 2021-03-16 王坤 一种绿建石制造用的高效混料工艺

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DE2240245A1 (de) * 1971-08-26 1973-03-08 Pettibone Corp Mischvorrichtung, insbesondere fuer koerniges gut
US4300725A (en) * 1979-09-13 1981-11-17 Moherek Edward F Apparatus for uniformly dispensing and distributing material
US4560281A (en) * 1984-04-16 1985-12-24 Foundry Automation, Inc. Foundry apparatus for mixing sand with binder
DE4142999A1 (de) * 1991-12-24 1993-07-01 Oesterreich Franz Verfahren zur verfestigung von lockeren metallhaltigen substanzen, verfestigungsvorrichtung sowie verfestigungsprodukt
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US6123445A (en) * 1996-09-16 2000-09-26 Grassi; Frank Dual stage continuous mixing apparatus
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3245035B1 (fr) * 2015-01-16 2019-10-30 IPCO Germany GmbH Procédé et dispositif de production des granules de matière thermoplastique
US10688688B2 (en) 2015-01-16 2020-06-23 Ipco Germany Gmbh Method and device for producing a thermoplastic granulate material
CN110015491A (zh) * 2019-05-17 2019-07-16 郑州贝贝生物科技有限公司 一种土壤农药残留检测用样本存储装置
CN112495209A (zh) * 2020-12-04 2021-03-16 王坤 一种绿建石制造用的高效混料工艺

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WO2013071327A3 (fr) 2013-08-22

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