EP1680550A1 - Procede et dispositif de production d'un materiau composite - Google Patents

Procede et dispositif de production d'un materiau composite

Info

Publication number
EP1680550A1
EP1680550A1 EP04797507A EP04797507A EP1680550A1 EP 1680550 A1 EP1680550 A1 EP 1680550A1 EP 04797507 A EP04797507 A EP 04797507A EP 04797507 A EP04797507 A EP 04797507A EP 1680550 A1 EP1680550 A1 EP 1680550A1
Authority
EP
European Patent Office
Prior art keywords
carrier material
mixing
adhesive material
particles
adhesive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04797507A
Other languages
German (de)
English (en)
Inventor
Karl Reinhard Zeiss
Klaus Kahler
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.)
KLV Lizenz-Vermarktungsgesellschaft mbH
Original Assignee
KLV Lizenz-Vermarktungsgesellschaft mbH
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 KLV Lizenz-Vermarktungsgesellschaft mbH filed Critical KLV Lizenz-Vermarktungsgesellschaft mbH
Publication of EP1680550A1 publication Critical patent/EP1680550A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/1022—Coating the solid ingredients by passing same through a shower or cloud of binder
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/203—Solid polymers with solid and/or liquid additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2395/00—Bituminous materials, e.g. asphalt, tar or pitch

Definitions

  • the invention relates to a method for producing a composite material, wherein at least one binding, powdery or granular adhesive material is mixed and bonded with at least one powder, granular or granular carrier material to be bound.
  • the invention also relates to an apparatus for performing this method.
  • the carrier material is usually mixed mechanically with adhesive material, a particle composite of carrier material particles and adhesive material particles being formed during and / or after the mixing.
  • the adhesive material can either chemically set and thereby achieve a stabilizing effect, or the adhesive material can be thermoplastic, the mixing with the carrier material taking place in the heated state and a finished composite material being present after cooling.
  • cheap filler material for example gravel or sand or plastic
  • the adhesive material is usually expensive.
  • the proportion of this valuable adhesive material in the composite material is so high that the carrier material particles are completely enveloped and / or the spaces between the carrier material particles are filled with adhesive material in order to achieve the desired strength of the finished composite material.
  • the object is therefore to create a method and a device by means of which the amount of adhesive material can be reduced relative to the amount of carrier material and at the same time the previous strength of comparable composite materials can be achieved.
  • the invention proposes in particular that the backing material and the adhesive material are largely evenly distributed and connected to one another in a mixing process, in that the backing material is at least briefly heated to the melting temperature of the adhesive material and that the adhesive material particles are thereby brought into contact by selective contact with Carrier material particles are melted onto the surface of the carrier material particles and adhere.
  • some adhesive material particles can adhere punctually evenly distributed over the surface of the carrier material particles, the amount of adhesive material particles adhering being easily controllable. Due to the only brief heating, the adhesive material can melt on the hot carrier material particles, but fusing and adhesion of the carrier material particles provided with adhesive material particles to one another can largely be avoided. This is also supported by the even distribution of the materials during the mixing process. This allows the resulting free-flowing or bulk material existing composite material can be stored and / or transported easily and long before final use.
  • the composite material for example as a building material or building material, it is advantageous if the composite material is heated for further processing to a temperature above the melting temperature of the adhesive material, in particular for melting, and if the heating forms connecting bridges from adhesive material particles adhering to the carrier material particles between adjacent carrier material particles , Furthermore, there is the possibility that the composite material is heated to a temperature above the melting temperature of the adhesive material until it melts completely, so that the adhesive material particles adhering to the carrier material particles at least partially wet the surface of the carrier material particles and thereby adjacent carrier material particles are glued together ,
  • the melting adhesive material particles can connect the carrier material particles on the one hand through a macroscopic capillary action between adjacent carrier material particles, by allowing the adhesive material to penetrate deeply into these gaps, on the other hand the surface of the carrier material can have microscopic unevenness with a microscopic capillary action, which aids adhesion of adhesive material ,
  • the composite material can be brought into the desired shape before heating, for example with the aid of a formwork or
  • the mixing process with the aid of at least one electrostatic field is particularly advantageous is carried out and / or if the adhesive material is fed to the mixing process, preferably electrostatically charged.
  • the electrostatic field can promote the uniform distribution of the materials to be mixed and the electrostatic charging the mutual attraction of the materials for the attachment of adhesive material particles to the carrier material particles.
  • Carrier material is charged electrostatically and that the
  • Polarity of the electrostatic charge of the carrier material is preferably opposite to that of the adhesive material.
  • the differently charged materials can thus attract each other, while simultaneously repelling the equally charged particles of a material.
  • the materials can each be largely uniformly distributed and practically form a particle cloud, the two particle clouds of carrier material particles and adhesive material particles being able to penetrate one another and thus a uniform mixing of the two
  • an electrostatic field in particular an alternating electrostatic field, is generated in the mixing area where the carrier material meets the adhesive material.
  • This additional alternating field can further promote and accelerate the even distribution of the two materials involved in the mixing process.
  • An embodiment of the method according to the invention provides that during the mixing process the carrier material particles are distributed and / or loosened and preferably heated on their surface by radiant heat, for example infrared radiation and / or microwave radiation, and that the adhesive material particles are then added to the heated carrier material particles and mixed with them, preferably under the influence of the electrostatic alternating field, and then connected.
  • the distribution of the carrier material particles can take place, for example, in a container at least partially enclosing the mixing process, into the interior of which radiant heat is then radiated in and then the adhesive material particles, which can additionally be electrostatically charged, are introduced.
  • An electrostatic alternating field can then also be built up in the container, while the mixing process continues and the adhesive material particles are deposited on the carrier material particles.
  • the particles of the carrier material are larger, in particular approximately ten to one hundred times larger, than the particles of the adhesive material.
  • the adhesive material particles can be deposited in the desired number and approximately evenly distributed on the surface of the carrier material particles that is much larger than the adhesive material particles.
  • the adhesive material particles can form a more or less tight lattice or grid on the surface of a carrier material particle, which is advantageous for later crosslinking of the carrier material particles with one another when heated during further processing of the composite material.
  • the volume of the carrier material is larger, in particular approximately one hundred to one thousand times larger than the volume of the adhesive material.
  • the carrier material particles can be adequately bonded to one another via the connecting or adhesive bridges made of adhesive material in order to achieve the desired level To maintain strength.
  • bitumen powder or powdered multicomponent systems preferably epoxy resin systems or the like
  • powder or granular material is bonded as the adhesive material to the carrier material, which preferably consists of sand or gravel or the like granular and / or crystalline material.
  • Epoxy resin systems as adhesive material offer long-lasting adhesive bonds and are easy to process.
  • the preferably free-flowing composite material formed from the carrier material particles with the adhesive material particles adhering thereto is removed at a temperature below the melting temperature of the adhesive material, in particular during the mixing process. This prevents the carrier material particles from sticking to one another before the composite material is finally used.
  • One particularly for batch production of composite Appropriate execution of the method according to the invention provides that the adhesive material is mechanically mixed with the carrier material by rotation of a mixing container and that the mixing is carried out by at least one movable and / or at least one rigid mixing tool inside the mixing container and that at least the adhesive material particles the action of the electrostatic alternating field and / or by at least one gas stream are distributed substantially uniformly during the mixing process.
  • the possibly electrostatically charged carrier material can first be introduced into the mixing container and mechanically moved by the rotation. Then the adhesive material is added, which comes into contact with the moving carrier material finely, in particular as a cloud, through the electrostatic alternating field present in the mixing container, so that the adhesive material particles accumulate on the carrier material particles during and shortly after heating.
  • Another embodiment of the method according to the invention in particular for the production of composite material in a continuous manufacturing process, provides that the carrier material, as a preferably continuous stream of material, is fed to the mixing process for largely uniform distribution and connection with the adhesive material, the adhesive material advantageously transversely and / or counter to the direction of the carrier material stream is sprayed or blasted into the carrier material stream in particular.
  • the jets or streams of carrier material and adhesive material encountering one another can thereby easily mix with one another, the uniform distribution of the materials in the mixing region being dependent on the direction and strength of the streams and on the presence of one or more electrostatic ones Fields in the mixing area can be improved.
  • the carrier material flows through a heating area for, in particular, briefly increasing the temperature of the carrier material and, after mixing and connecting with the adhesive material, a cooling area for cooling the composite material.
  • the rate of flow through the respective process zone can be used to control the amount of energy supplied or withdrawn from the respective material.
  • a suitable combination of carrier material and adhesive material can preferably consist of sand and the adhesive material preferably consists of bitumen, the sand and / or the
  • Bitumen is preferably obtained from oil sand, which consists of coherent sand and oil or bitumen particles, by separating its individual components from one another. Both materials are available in large quantities and sand, for example, is available everywhere in desert regions, with bitumen in particular being a by-product and in different qualities in oil refineries.
  • the substance mixture or the particle composite within a temperature window which can be predetermined depending on the substance, alternately in one or more cycles, preferably quickly or shock-cooled and is heated, that the alternating heating and cooling is carried out with a particularly high temperature gradient and that the number of heating / cooling cycles until separation the mixture of substances is made into its individual components.
  • the mixture of substances to be separated such as the oil sand
  • the mixture of substances to be separated is subjected to an alternating load which, after a material-dependent number of cycles, leads to the safe disassembly of the mixture of substances into its individual components.
  • the carrier material is removed from the surface of the carrier material particles with the aid of mechanical vibrations, in particular sound waves, preferably ultrasound, before being fed to the mixing process, in order to remove deposits, buildup or soiling.
  • mechanical vibrations in particular sound waves, preferably ultrasound
  • the carrier material particles and the contaminations are set in vibration at the same time, the two different substances having different natural frequencies and thus also resonating in different ways and being separated from one another.
  • the loose dirt can then be removed from the carrier material using filters or other known methods.
  • the soiling can be, for example, salt or other substances that are particularly present in natural desert sand.
  • the carrier material for removing deposits, adhesions or dirt from the surface of the carrier material particles is cleaned with the aid of micro or fine sand before being fed to the mixing process.
  • the much smaller particles of the microsand can, for example, be mechanically mixed with the carrier material and moved in such a way that the microsand particles practically grind or remove deposits from the surface of the carrier material particles, while the individual particles meet or collide with one another.
  • micro or fine sand is sprayed or sprayed at a preferably high speed into a continuous flow of carrier material transversely or obliquely to its direction of movement.
  • the effect of grinding or abrasion can thereby be enhanced, because the microsand particles hit the carrier material particles at high speed and, with the aid of their high kinetic energy, the deposits or
  • Soiling can be blasted off or removed from the surface of the carrier material particles upon impact.
  • a device with a mixing device for mixing at least one binding, powdery or granular adhesive material with at least one powdered, granular or granular carrier material to be bound the mixing device a mixing area, a feed for the Has carrier material and the adhesive material in the mixing area and an energy supply device for heating at least the carrier material.
  • the carrier material can be in heated in the mixing area or on the way to the mixing area by the energy supply device and then mixed and bonded in the mixing area with the preferably finely divided adhesive material.
  • a field generating device for electrostatically charging the adhesive material is provided at least for the adhesive material.
  • the similarly charged adhesive material particles repel each other, which supports the uniform distribution of the adhesive material particles in the mixing area.
  • the electrostatically charged adhesive material particles can adhere particularly easily to the carrier material particles which are not additionally or preferably with opposite polarity.
  • the field generating device for electrostatically charging the adhesive material is arranged in the region of the feed opening of the adhesive material feed.
  • the adhesive material can be continuously electrostatically charged on the way to the mixing area and while it is flowing through, the electrostatic field required for charging only having to pass through a small area of the adhesive material supply.
  • a second field generating device is provided in the area of the feed of the carrier material for the electrostatic charging of the carrier material.
  • This second field generating device can charge the carrier material preferably with a polarity that is opposite to the polarity of the adhesive material, so that when the two materials are mixed the adhesive material particles can adhere particularly easily to the carrier material particles.
  • a third field generating device is provided in the mixing area of the carrier material with the adhesive material, in particular for generating an electrostatic alternating field. This electrostatic alternating field can improve the uniform distribution of one or both materials in the mixing area and / or accelerate the introduction of the materials into the mixing area.
  • the mixing device has a preferably approximately vertical tubular element which at least partially surrounds the mixing area and if at least the feed for the carrier material is arranged in the upper area of the tubular element.
  • the materials in the upper area can be fed into such a mixing device, prepared and mixed in the middle area and connected to one another, and aftertreated in the lower area and then removed from the mixing device.
  • the different phases of the manufacturing process can therefore run in different longitudinal sections of the tubular element.
  • the carrier material supply and the adhesive material supply are designed for transverse and / or opposite guidance of the carrier material flow and the adhesive material flow relative to one another in the mixing area.
  • the two material flows can thus meet in the mixing area and can be mixed quickly and evenly. If the material flows are continuous flows, the mixing process can also be carried out continuously.
  • the energy supply device for Heating the carrier material in the flow course of the carrier material flow is arranged in front of the mixing area with the adhesive material and if a cooling device is provided for cooling the composite material in the flow course behind or after the mixing area.
  • the carrier material can flow through the area of the energy supply device in such a way that it is briefly heated, so that immediately after this brief heating, adhesive material particles can melt on the surface of the carrier material particles in the mixing area.
  • the resulting composite material can then pass through the cooling device, so that the cooling of the composite material takes place quickly and a connection of composite material particles to one another can largely be avoided.
  • the removal from the mixing device and the further transport of the composite material can also be simplified and accelerated in this way.
  • the mixing device has a rotating mixing drum as the mixing container.
  • a certain amount of carrier material can be mixed and bonded with adhesive material and a desired amount of composite material can be produced in this way.
  • Such a mixing drum can be operated stationary, but also as a mobile unit, for example on a vehicle, and can be filled with carrier material and adhesive material at the place of use.
  • the adhesive material required in small quantities is carried on the vehicle and that the carrier material, for example sand, is already available at the place of use.
  • at least one movable and / or at least one rigid mixing tool is arranged in the mixing drum. Mixing tools of this type can mix the free-flowing materials present in the mixing drum quickly and completely and are long-lasting and require little maintenance.
  • a field generating device for an electrostatic alternating field and / or at least one gas stream flowing into the mixing drum are provided.
  • the adhesive material particles can be kept in suspension during the mixing process, so that a particle or particle cloud practically arises, in which the carrier material moves as the mixing drum rotates and thereby comes into constant contact with the adhesive material.
  • the adhesive material can be distributed very finely within the mixing drum and thus mixing with the carrier material can be improved.
  • the energy supply device is designed, at least temporarily, to heat the carrier material to be bound, preferably on its surface to a temperature above the melting temperature of the adhesive material. If the carrier material is heated in this way, adhesive material particles can adhere to the surface of the carrier material particles by melting without completely melting and running, since the carrier material cools down comparatively quickly due to the brief heating and is / was hot or warm on the surface , The actual connection process between the backing material and the adhesive material can thus take place quickly, which on the one hand makes the manufacturing process short overall, but above all on the other hand can only melt a small number of adhesive material particles per backing material particle, which reduces the consumption of adhesive material in a desired manner.
  • the energy supply device is preferably designed to emit heat radiation and / or microwave radiation into the interior of the mixing drum and onto the material or materials contained therein.
  • heat radiation can be generated with simple means, which also simplifies the construction of the energy supply device.
  • microwave radiation alone or in addition to thermal radiation can be advantageous in order to heat the carrier material in the desired manner.
  • a cleaning device is provided for removing deposits, adhesions or dirt from the surface of the carrier material particles.
  • Sound waves preferably ultrasound.
  • the different natural frequencies of the carrier material and the accumulating other substances the separation of the two substances from one another and thus the cleaning of the surface of the carrier material particles can be achieved because the different substances are excited by the vibrations in different ways and vibrate themselves.
  • the cleaning device is designed for the blasting and / or spraying of micro or fine sand at a preferably high speed into a continuous flow of carrier material transversely or obliquely to the direction of its movement.
  • microsand particles which are preferably much smaller than the carrier material particles, can remove the deposits or contaminants from the surface of the carrier material particles by means of an abrasion or grinding effect.
  • FIG. 1 shows a longitudinal section through a device according to the invention for producing composite material with a vertical tubular element
  • 1A is an enlarged view of the areas A, B and C highlighted to 1C in FIG. 1,
  • FIG. 2 shows a longitudinal section through a device according to the invention for the batchwise production of composite material with a mixing drum
  • Fig. 3 is an end view of the device shown in Fig. 2 and 4 shows a detailed illustration of two carrier material particles which adhere to one another by an adhesive material particle lying between them.
  • a device designated as a whole by 1 is used to produce a composite material 7, at least one binding, powdery or granular adhesive material 2 being mixed and bonded with at least one powdered, granular or granular carrier material 3 to be bound.
  • This has a mixing device 4 for mixing the materials 2 and 3, a mixing area 5, a feed for the carrier material 3 and the adhesive material 2 into the mixing area 5 and also an energy supply device 8 for heating the carrier material 3.
  • FIG. 1 shows an embodiment of the device 1 with a mixing device 4 which has a vertically upright tubular element 18, in the interior of which the mixing area 5 is located.
  • the tubular element 18 encloses the mixing area 5 on the outer circumference.
  • the tubular element 18 is largely open, so that the materials 2 and 3 can be fed in and out again.
  • This embodiment is particularly well suited for the production of large quantities of composite material 7 in a continuous and in particular industrial process.
  • a feed 13 for the carrier material 3 is arranged in the upper region of the tubular element 18 in such a way that the carrier material 3 falls as a carrier material stream 15 from above into or through the mixing region 5 and is mixed and bonded there with the adhesive material 2 which in this configuration diagonally upwards and as wide and as possible is blown or sprayed into the stream of carrier material 15 in a moderately fanned manner.
  • the carrier material stream 15 in the mixing area 5 is also broadly diversified due to the action of an electrostatic alternating field 6 and is expanded in relation to its expansion shortly after the feed 13, so that in the mixing area 5 uniform mixing and. In all areas of both material flows 15 and 16 Connection of the carrier material 3 with the adhesive material 2 is achieved.
  • This heating occurs in the flow course of the carrier material stream 15 upstream of the mixing area 5, as shown in FIG. 1.
  • the duration of the heating of a carrier material particle 3 is very short, so that it is only heated on the surface.
  • the heated carrier material particles 3 fall directly into the mixing region 5, which is preferably immediately adjacent, where the supplied adhesive material particles 2 can melt on the hot surface of the carrier material particles.
  • the composite material 7 is cooled with the aid of a cooling device 17 in order to maintain its flowability and to prevent the composite material particles 7 from sticking to one another.
  • a collecting container 24 can be used to collect the composite material 7 serve .
  • a field generating device 9 can be seen, which charges the adhesive material 2 electrostatically.
  • the field generating device 9 is arranged in the area of the feed opening 10 of the adhesive material feed 11 in order to electrostatically charge the adhesive material 2 before it is introduced into the mixing area 5.
  • the electrostatically charged adhesive material 2 can adhere better to the carrier material 3, which is charged little or, if appropriate, also differently.
  • the field generating device 9 is directly part of the adhesive material supply 11 and the adhesive material supply 11 and the field generating device 9 together form a compact and low-maintenance unit.
  • a similar second field generating device 12 for electrostatically charging the carrier material 3 is arranged in the region of the feed 13 of the carrier material 3 to the mixing region 5 and charges the carrier material 3 with a polarity, which is preferably opposite to the polarity of the adhesive material 2, in order to ensure the adhesion of the adhesive material particles 2 to reinforce on the surface of the carrier material particles 3.
  • the carrier material feed 13 and the field generating device 12 are also designed as a compact and low-maintenance unit.
  • a third field generating device 14 can be seen in the exemplary embodiment in FIG.
  • This field generating device 14 is arranged at the periphery of the tubular element 18 around the mixing area 5 and generates an electrostatic alternating field 6 in the mixing area 5 in order to uniformly adhere the material particles 2, 3 to distribute.
  • the materials 2 and 3 can be distributed evenly in the mixing area 5 during the mixing process on the one hand, and can also be brought together in order to adhere to one another in connection with the heating of the carrier material 3.
  • the desired uniform distribution of the adhesive material particles 2 on the surface of the carrier material particles 3 can thus be achieved.
  • the proportion of the adhesive material 2 in the composite material 7 can be reduced by uniformly depositing a few adhesive material particles 2 per carrier material particle 3.
  • a cleaning device 25 can be seen in which dirt or deposits on the surface of the carrier material particles 3 can be removed.
  • FIG. 2 and 3 show an alternative embodiment of a device 1 a, in which the mixing device 4 has a rotating mixing drum 19, in which the mixing area 5 is located.
  • Mixing tools 20 can be seen in the mixing drum 19 (FIG. 3), which in the embodiment shown are designed as four rigid mixing tools 20.
  • the material 2 and / or 3 lying on the inner wall of the mixing drum 19 also passes onto or below the mixing tools 20 when the mixing drum 19 rotates and is thus moved and mixed and at least temporarily kept in suspension.
  • FIGS. 2 and 3 also show a field generating device 21 encompassing the mixing drum 19, which generates an electrostatic alternating field in the mixing drum 19 and thus in the mixing region 5, around the adhesive material particles 2 to distribute evenly in the mixing drum 19.
  • the preferably very small and very light and optionally electrostatically charged adhesive material particles 2 can thus be distributed in the form of a cloud in the mixing drum 19, so that the adhesive material particles 2 can adhere evenly to the carrier material particles 3 moving in the mixing drum 19.
  • the energy supply device 8 which briefly heats the surface of the carrier material 3 to be bound in the mixing drum 19 to such an extent that the adhesive material particles 2 introduced into the mixing drum 19 after this heating melt onto the carrier material particles 3 and can thereby adhere.
  • the energy supply device 8 briefly radiates heat and / or microwave radiation into the mixing drum 19 or into the mixing area 5.
  • FIG. 4 shows a greatly enlarged view of two carrier material particles 3 which are connected to one another, in particular glued, by means of an adhesive material particle 2.
  • the adhesive material particle 2 is in each case fused to the surface of the carrier material particle 3 and is integrally connected to it.
  • This shows the still further enlarged representation of the highlighted area A, in which it is shown how the adhesive material on the one hand runs through the capillary action between the carrier material particles 3 and on the other hand at the same time has wetted the microstructure of the surface of the carrier material particle and has penetrated into these microcapillaries, whereby a firm connection of both materials is achieved.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Composite Materials (AREA)
  • Architecture (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne un procédé de production d'un matériau composite (7), selon lequel on mélange au moins une matière adhésive (2) liante, en poudre ou en grains, à au moins une matière support (3) à lier, en poudre, en grains ou en granulés. Dans un procédé de mélange, la matière support (3) et la matière adhésive (2) sont distribuées de manière largement uniforme et mélangées, la matière support (3) étant chauffée au moins brièvement à la température de fusion de la matière adhésive (2). Les particules de matière adhésive (2) fondent et adhèrent à la surface des particules de matière support (3) par contact ponctuel avec ces particules de matière support (3).
EP04797507A 2003-11-03 2004-11-02 Procede et dispositif de production d'un materiau composite Withdrawn EP1680550A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003151176 DE10351176A1 (de) 2003-11-03 2003-11-03 Verfahren und Vorrichtung zur Herstellung eines Verbundmaterials
PCT/EP2004/012361 WO2005042847A1 (fr) 2003-11-03 2004-11-02 Procede et dispositif de production d'un materiau composite

Publications (1)

Publication Number Publication Date
EP1680550A1 true EP1680550A1 (fr) 2006-07-19

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EP04797507A Withdrawn EP1680550A1 (fr) 2003-11-03 2004-11-02 Procede et dispositif de production d'un materiau composite

Country Status (3)

Country Link
EP (1) EP1680550A1 (fr)
DE (1) DE10351176A1 (fr)
WO (1) WO2005042847A1 (fr)

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CN113174812A (zh) * 2021-04-25 2021-07-27 四川统揽建设集团有限公司 一种沥青混凝土制备系统

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WO2005042847A1 (fr) 2005-05-12

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