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EP0218864B1 - Dispositif et procédé pour la fabrication continue d'une masse à prise hydraulique - Google Patents

Dispositif et procédé pour la fabrication continue d'une masse à prise hydraulique Download PDF

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Publication number
EP0218864B1
EP0218864B1 EP86111814A EP86111814A EP0218864B1 EP 0218864 B1 EP0218864 B1 EP 0218864B1 EP 86111814 A EP86111814 A EP 86111814A EP 86111814 A EP86111814 A EP 86111814A EP 0218864 B1 EP0218864 B1 EP 0218864B1
Authority
EP
European Patent Office
Prior art keywords
shaft
mixing
fibre
housing
worm
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.)
Expired - Lifetime
Application number
EP86111814A
Other languages
German (de)
English (en)
Other versions
EP0218864A3 (en
EP0218864A2 (fr
Inventor
Adolf Prof. Dr.-Ing. Meyer
Helmut Dipl.-Geol. Dr. Rer. Nat. Steinegger
Wolfgang Dipl.-Ing. Schröder
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.)
Heidelberg Materials AG
Original Assignee
Heidelberger Zement AG
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 Heidelberger Zement AG filed Critical Heidelberger Zement AG
Priority to AT86111814T priority Critical patent/ATE54597T1/de
Publication of EP0218864A2 publication Critical patent/EP0218864A2/fr
Publication of EP0218864A3 publication Critical patent/EP0218864A3/de
Application granted granted Critical
Publication of EP0218864B1 publication Critical patent/EP0218864B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/1238—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
    • B28C5/1292—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices with rotating stirring and feeding or discharging means fixed on the same axis, e.g. in an inclined container fed at its lower part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
    • B01F27/192—Stirrers with two or more mixing elements mounted in sequence on the same axis with dissimilar elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/21—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by their rotating shafts
    • B01F27/2123—Shafts with both stirring means and feeding or discharging means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/62—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis comprising liquid feeding, e.g. spraying means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • B01F27/707—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms the paddles co-operating, e.g. intermeshing, with elements on the receptacle wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71775—Feed mechanisms characterised by the means for feeding the components to the mixer using helical screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B28C5/40—Mixing specially adapted for preparing mixtures containing fibres
    • B28C5/404—Pre-treatment of fibres
    • B28C5/406—Pre-treatment of fibres and mixing with binding material

Definitions

  • the invention relates to a device for the continuous provision of fibers containing hydraulic setting mass, in particular wet mortar or dry mortar, with an at least partially cylindrical tubular housing which has a feed point for dry substance, a mixing zone, a fiber input point and a discharge opening in the conveying direction, and with an in the rotating shaft, which causes a conveying flow through the housing and carries a metering screw in the area of the loading point for dry substance and a mixing screw in the area of the fiber input point.
  • Such a device is known from DE-B 2 337 129 for the production of fiber concrete.
  • FR-A 1 243 318 describes a continuous mixer for a mass with a proportion of foaming agent, fibers and powdery dry substance, in particular cement or gypsum.
  • foaming agent in particular cement or gypsum.
  • the fibers and the foaming agent are mixed and transported in the area of a screw.
  • the dry substance is added and mixed in in a mixing zone with comb-like pins, partly on the shaft and partly on the cylinder housing.
  • the mixture is discharged with another screw.
  • the object of the invention is to provide a device of the type mentioned at the outset, which enables fiber-friendly, uniform and intensive incorporation of the fibers into the hydraulically setting mass.
  • the shaft carries at least one additional fiber installation tool in the area of the fiber input point in addition to the mixing screw.
  • the mixing screw is designed as a spiral axial screw.
  • a number of pins which project radially from the shaft and are preferably curved in the circumferential direction counter to the direction of rotation of the shaft can be provided as the fiber installation tool. The latter result in an even, gentle installation of the fibers.
  • Sensitive fibers can also be used in this way, which would be destroyed by the previous intensive work-up of the hydraulically setting mass.
  • Working in a continuous flow of material limits the dwell time of the fibers in the area of the conveyor line and fiber installation pins in a well-defined manner, so that damage or destruction of fibers by the mixing in is effectively prevented.
  • the shaft may be in the mixing zone a number of substantially radially projecting mixing blades wear and be equipped with at least one tool for Feinzerkleinem in an opening located between the mixing zone and the fiber input point k Feinzer managerial ntationszone.
  • the latter preferably consists of a comb carried by the shaft, which is in engagement with at least one further comb fixed to the housing according to the key-lock principle.
  • the combs can extend in the axial direction and have essentially radially directed pins. It is recommended to use a plurality of combs which are preferably offset in the circumferential direction at the same angular distance.
  • the mixing blades can be equipped with wipers bearing against the inner wall of the tube, which extend in particular in the axial direction and can be attached to the tips of a pair of mixing blades.
  • the wipers intensify the mixing and ensure that the mixing zone extends right up to the inner wall of the pipe. The latter is constantly scraped free, which is accompanied by a bearing of the shaft.
  • the device can have a storage container, in particular in the form of a top box or silo connection, in the outlet area of which the housing has a central cross-sectional constriction through which the shaft with the dosing screw protrudes .
  • the work of wipers on the cross-sectional constriction of the housing keeps this area free of wet mass, so that the time period over which the device can be left switched off without problems is extended.
  • the composition of the mass obtained can be easily regulated on the basis of the operating parameters of such a cutting unit.
  • the housing of the device can taper conically downstream from the chute to the discharge opening and can contain a correspondingly conically tapering screw section on the shaft. In this conical end part of the housing, the fiber concrete is gently mixed.
  • the device preferably has a pump.
  • the housing can have a peripheral water connection in the area of the motor-side mixing zone, preferably with at least a slightly downstream spraying direction.
  • mortar can be mixed with the device according to the invention, as is necessary for the production of fiber concrete.
  • the water is kept away from the metering zone and storage container, so that the possible switch-off time of the device is in turn extended.
  • the device does not necessarily have to work with the addition of water; it can also be used to prepare a hydraulically setting dry mass with a fiber content.
  • the device has a control unit that starts the shaft with a lead in terms of fiber addition when starting and stops with a lag in terms of fiber addition when switched off.
  • Two selectable pre-air periods of the shaft can be provided, one of which is longer for commissioning after the device has been dismantled, and the shorter one for starting up after a short break in work. In the latter case there is still mass in the housing and it is only necessary to prevent excess fibers in the mixture for a short time when starting up. After a long interruption, disassembly and cleaning of the device, on the other hand, the housing is empty when starting, and the running time of the mass from the storage container to the fiber addition point is taken into account. The composition of the mass remains the same even after it has been switched off, and fiber material is saved, which is normally the most expensive component.
  • the device can be provided with a safety circuit which monitors the water pressure and / or suitable operating parameters of a fiber cutting unit and switches off in the event of a fault.
  • the device shown in FIG. 1 has a housing with a substantially circular cylindrical tube 10 coming horizontally. At one end of the tube is the storage container 12 for dry substance, downstream of which there is a radial water connection 14 and further downstream a fiber installation station with a fiber cutting device 16, and finally at the other end of the tube 10 a conically tapering end part 18, which has a dispensing opening 20 towards the bottom.
  • the device provides 10 fiber concrete in a continuous flow through the tube when using desiccant, water and fibers
  • the device is mounted on rollers 22 in the region of the storage container 12 and is supported with a foot 24 against the ground.
  • the fiber cutting mechanism 16 has a separate frame 28, which also runs on rollers 26. This structure enables a change of location to be carried out quickly and easily.
  • the storage container 12 is designed as an attachment box, which can in particular be provided with a sack ripper.
  • a silo connection part can also be used, via which the device is supplied with dry matter directly from a silo. The conversion between the two variants is easy.
  • a motor 30 is attached to the reservoir 12 in the axial extension of the tube 10. This drives a shaft 32, which runs through the full length of both the reservoir 12 and, in a central, axial arrangement, the tube 10.
  • the shaft 32 carries a number of tools, which are used for dosing dry material from the storage container 12, mixing, grinding, for fiber installation and last but not least for transporting the mass through the pipe 10.
  • FIG. 2 shows schematically how dry substance is discharged from the storage container 12.
  • a section of the shaft 32 running inside the storage container 12 carries a metering screw 34 and individual, radially projecting loosening vanes 35.
  • the shaft 32 is guided through a front-side outlet opening 36 of the storage container 12, which represents the transition to the tube 10.
  • the outlet opening 36 has a circular cross section and has a smaller diameter than the tube 10, with respect to which it is arranged in the center.
  • the cross-sectional constriction is formed by a cylinder sleeve 38, which is arranged coaxially to the tube 10 and protrudes radially inwards and has a length.
  • the dosing screw 34 protrudes into the cylinder sleeve 38 in which it ends.
  • the metering screw 34 transports dry material from the storage container 12 into the pipe 10 at a well-defined rate.
  • the metering rate depends on the structural geometry, in particular the size of the outlet opening 36 and the gradient of the metering screw 34, the chamber volume and the speed of the shaft 32 from which it can be regulated within wide limits.
  • a mixing zone follows in the tube 10 downstream of the metering zone.
  • the shaft 22 carries mixing blades 40 projecting radially therefrom, which mix the material located in the tube 10 and, at the same time, transport it through its shape, a suitable angle of attack etc.
  • a part of the mixing blades is equipped with scrapers 42, 44 made of hard rubber or the like. exist and lie on the inner wall of the tube 10. 4 and 5 in particular, wipers 42 can be seen, which are attached to the radially outer end of a pair of mixing blades 40 and extend essentially in the axial direction.
  • the mixing blades carry a flat part 41 serving as a holder, to which the wipers 42 are fastened with screws or rivets 43.
  • a number of such mixing vane groups 40 with wipers 4 are provided, which in the axial direction of the shaft 32 with Ab stood in succession ( Figure 1).
  • the mixing blades 40 of the individual groups are angularly offset by 120 ° in the circumferential direction.
  • At the level of each group there are also individual mixing blades 46 without wipers, and also at an angular offset of, for example, 120 ° .
  • This geometry is shown schematically in FIG. 3.
  • one of the wipers 44 is located at the axial end of the cylinder bush 38, at which the passage cross section for the material widens to the inside dimension of the tube 10.
  • the scraper 44 lies against both the end face 48 of the cylinder liner 38 and the inner wall of the tube 10. It thus ensures that the step-like transition to the outlet of the reservoir 12 is always scraped free of material, which, among other things, achieves a well-defined separation of the wet zone and dry zone of the device.
  • the water connection 14 of the device is in the area of the mixing zone, namely in its upstream part.
  • the water connection 14 is at some distance from the diameter step at the end of the cylinder liner 38. It is also inclined against the pipe axis, so that a water jet fed in has a spray direction downstream in the conveying direction of the material.
  • All of these measures in particular the grading of the diameter of the housing of the device and the stripper 44 working there, prevent water from getting into the reservoir 12. This lock is particularly effective when the drive of the shaft is switched off and the flow of the material is interrupted. It is thus possible to interrupt the continuous production of mortar at short notice, for example for 10 to 15 minutes, and then to restart the device without having to take any special measures.
  • the wipers 42, 44 intensify the mixing process and ensure that the mixing zone extends over the full cross section of the tube 10. Furthermore, they also serve to support the shaft 32. As FIG. 1 shows, the shaft 32 is supported twice; a roller bearing 50 is provided as a second bearing on the end face of the conical tube end part 18.
  • a fine comminution zone of the device adjoins the mixing zone downstream.
  • the shaft 32 carries comb-like tools 52 which adjoin the shaft 32 with their comb back, extend essentially in the radial direction and have radially projecting pins.
  • a plurality of combs 52 offset at an angle can be attached at the same axial height, for example three combs 52 at an angular distance of 120 ° .
  • the combs 52 rotating with the shaft 32 engage with combs 54 fixed to the housing. The latter come to rest with their comb back on the inner wall of the tube 10, extend essentially in the axial direction, and have radially inwardly directed tines.
  • the engagement of the combs 52, 54 which takes place according to the key-lock principle, is illustrated in FIG. 6.
  • the mass conveyed by the tube 10 between the combs 52, 54 is finely comminuted and homogenized. It is lump-free, pasty and very flowable and therefore optimally prepared for the installation of fibers.
  • the combs 52, 54 are preferably made of steel wire. However, other materials, in particular plastic and hard rubber, can also be used.
  • the fiber addition point with the fiber cutting unit 16 follows downstream of the fine comminution zone. This is supplied with fiber strands 58, for example glass fiber rovings, which are cut to a predetermined length.
  • the amount of fiber provided per unit of time can be regulated via the retraction speed of the fiber cutting unit 16. After being cut, the fibers enter a chute 56 which is oriented essentially vertically and opens into the tube 10 of the device.
  • the invention is not restricted to the use of glass fibers, in particular alkali-resistant glass fibers.
  • glass fibers in particular alkali-resistant glass fibers.
  • other mineral fibers, plastic fibers, steel fibers, etc. are processed.
  • the material conveyed by the device is taken up downstream of the combs 52, 54 by a spiral axial screw 60 which extends under the chute 56 and through the conical end part 18 up to the dispensing opening 20.
  • the screw 60 sits on the shaft 32 and mixes the material and the fibers.
  • the shaft 32 is additionally equipped with pin-shaped fiber installation tools 62. As can be seen in FIG. 1, these pins 62 follow one another axially at a distance. They are distributed over the circumference of the shaft 32, it being possible, for example, to arrange three angularly offset pins 62 at the same axial height. This is illustrated in Figure 7; the screw 60 is not shown for the sake of clarity.
  • the pins 62 protrude essentially radially from the shaft 32, and they are curved in the circumferential direction, namely counter to the direction of rotation of the shaft 32. With these pins 62, the fibers are carefully and uniformly installed in the material.
  • the conical pipe end part 18 tapers towards the discharge opening 20.
  • the section of the screw 60 contained in this end part 18 tapers accordingly. This shape enables gentle, particularly intensive installation of the fibers.
  • the device is segmented.
  • the conical end part 18 is a removable part which is connected to the tube 10 via a quick-release fastener 64.
  • the tube 10 is in turn attached to the reservoir 12 with a corresponding quick-release fastener, not shown. You can easily dismantle the housing of the device for cleaning purposes.
  • the shaft 32 is in one piece at least from the mixing zone to the discharge opening 20.
  • the shaft section in the interior of the storage container 12 can be a separate part on which the shaft 32 can be detachably fixed in a rotationally fixed connection.
  • the device according to the invention can be used with or without the addition of mixing water for the production of fiber-reinforced hydraulically setting compositions.
  • Water is preferably added by means of a water pump 66 via a metering unit 68. From this the water reaches the water connection 14 via a line 70, in which a tap 72 and a pressure gauge 74 are located.
  • the device has a control unit 76 with a time delay circuit which takes effect when the device is started up and switched off.
  • the metering and mixing shaft 32 starts up with a lead relative to the fiber cutting unit 16.
  • lead times There are two different lead times that can be selected at the push of a button.
  • a longer lead time of, for example, about 8 seconds is used when the device is started up for the first time, after disassembly and cleaning, etc. in an operating state with an empty tube 10. This takes into account the fact that a certain runtime is required from the metering of the material from the storage container 12 until the fiber addition point is reached.
  • the shorter lead time of the metering and mixing shaft 32 relative to the fiber cutting unit 16 is selected, which can be, for example, approximately one second.
  • the fiber cutting mechanism is always stopped first, while the shaft 32 continues to run for a short time, for example also about a second.
  • the water supply is started at the same time as the metering and mixing shaft 32 starts.
  • a safety circuit is provided which monitors the water pressure and prevents the device from operating when the water pressure is insufficient. Furthermore, the proper functioning of the cutting unit 16 is monitored so that operational disruptions do not occur due to the drawing in of uncut fibers.
  • the cutting unit 16 contains a roller, which presses the fiber strands against rotating cutting knives in a pneumatically controlled manner. If the pneumatic working pressure is insufficient, the system is switched off.
  • the device allows continuous production of fiber concrete with an adjustable fiber content and a predeterminable fiber length in a mixing process that delivers a steady stream of material with a constant and excellently reproducible composition.
  • the material can be placed directly in molds, formwork, etc., for example to produce thin-walled moldings with high stability.
  • Other areas of application are the production of cement-bound pipe coatings, fiber plasters, floor coverings, etc.
  • building renovation offers a variety of possible uses.

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

Claims (15)

1. Dispositif pour la fabrication en continu d'une pâte à prise hydraulique contenant des fibres, en particulier un mortier humide ou un mortier sec, comportant une enveloppe (10) en forme de tube cylindrique au moins pour certains tronçons, qui présente successivement dans le sens de transport, un poste de chargement des matières sèches, une zone de malaxage, un poste d'introduction des fibres et une ouverture d'évacuation (20), comportant aussi un arbre (32) tournant entraîné dans l'enveloppe (10), provoquant un courant de transport à travers l'enveloppe (10), lequel arbre porte un doseur à vis sans fin (34) dans la zone du poste de chargement des matières sèches, et un malaxeur à vis sans fin (60) dans la zone du poste d'introduction des fibres, caractérisé en ce que l'arbre (32) porte au moins un autre outil d'intégration des fibres (62), dans la zone du poste d'introduction des fibres, en plus du malaxeur à vis sans fin (60).
2. Dispositif selon la revendication 1, caractérisé en ce que le malaxeur à vis sans fin (60) est une vis sans fin hélicoïdale axiale, et en ce qu'il est prévu comme outil d'intégration des fibres, un certain nombre de doigts (62) faisant saillie à peu près radialement de l'arbre (32) courbé de préférence dans la direction périphérique, dans le sens contraire au sens de rotation de l'arbre (32).
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que l'arbre (32) porte dans la zone de malaxage, un certain nombre de pales de malaxage (40, 46) à peu près saillantes radialement, et est équipé d'au moins un outil de broyage, dans une zone de broyage se trouvant entre la zone de malaxage et le poste d'introduction des fibres.
4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que l'outil de broyage est constitué d'au moins un peigne porté par l'arbre (32) et qui engrène avec au moins un autre peigne (54) solidaire de l'enveloppe.
5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que les peignes (52, 54) s'étendent axialement et comportent des doigts dirigés à peu près radialement.
6. Dispositif selon l'une des revendications 1 à 5, caractérisé par une pluralité de peignes (52, 54) disposés de préférence décalés et de même écartement angulaire dans la direction périphérique.
7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que les pales de malaxage (40) sont équipées de racloirs (42) s'appliquant contre la paroi intérieure du tube, qui s'étendent en particulier dans la direction axiale et peuvent être placés sur les pointes d'une paire de pales de malaxage (40).
8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce qu'il comporte au poste de chargement des matières sèches, un réservoir (12) se présentant en particulier comme un caisson rapporté ou comme un raccordement de silo, dans la zone de sortie (20) duquel l'enveloppe (10) présente un rétrécissement central de sa section transversale, rétrécissement à travers lequel passe l'arbre (32) avec le doseur à vis sans fin (34), et en ce que les pales de malaxage (40) sont équipées de racloirs (42, 44) s'appliquant contre la face frontale (48) du rétrécissement de la section transversale.
9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce qu'il est prévu au poste d'introduction des fibres un puits (56) débouchant dans l'enveloppe (10), et une coupeuse de fibres (16) placée en amont de ce puits et de préférence réglable quant à la quantité et/ou la longueur des fibres alimentées.
10. Dispositif selon l'une des revendications 1 à 9, caractérisé en ce que l'enveloppe se rétrécit coniquement vers l'aval, depuis le puits (56) jusqu'à l'ouverture d'évacuation (20), et comporte une section de vis de transport calée sur l'arbre (32), se rétrécissant coniquement de la même façon.
11. Dispositif selon l'une des revendications 1 à 10, caractérisé en ce qu'il comporte une pompe (66) pour le dosage de l'eau ajoutée.
12. Dispositif selon l'une des revendications 1 à 11, caractérisé en ce que dans la région de la zone de malaxage côté moteur, l'enveloppe présente un branchement d'eau (14) périphérique dont le jet est dirigé de préférence au moins légèrement vers l'aval.
13. Procédé d'exploitation et unité de commande du dispositif selon l'une des revendications 1 à 12, caractérisé en ce que l'arbre (32) est mis en marche avant l'addition des fibres et s'arrête après l'addition des fibres.
14. Procédé et unité de commande selon la revendication 13, caractérisé par deux périodes d'avance sélectionnables de l'arbre (32) dont la plus longue est utilisée pour la mise en service et la plus courte pour le démarrage après une interruption de courte durée.
15. Unité de commande selon la revendication 13 ou 14, caractérisée par un dispositif de sécurité qui contrôle la pression d'eau et/ou des grandeurs de service appropriées, par exemple la pression de service pneumatique de la coupeuse de fibres (16).
EP86111814A 1985-09-13 1986-08-26 Dispositif et procédé pour la fabrication continue d'une masse à prise hydraulique Expired - Lifetime EP0218864B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86111814T ATE54597T1 (de) 1985-09-13 1986-08-26 Vorrichtung und verfahren zur kontinuierlichen bereitstellung von hydraulisch abbindender masse.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3532722 1985-09-13
DE19853546501 DE3546501A1 (de) 1985-09-13 1985-09-13 Vorrichtung zur kontinuierlichen bereitstellung von hydraulisch abbindender masse
DE19853532722 DE3532722A1 (de) 1985-09-13 1985-09-13 Vorrichtung und verfahren zur kontinuierlichen bereitstellung von hydraulisch abbindender masse

Publications (3)

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EP0218864A2 EP0218864A2 (fr) 1987-04-22
EP0218864A3 EP0218864A3 (en) 1987-08-05
EP0218864B1 true EP0218864B1 (fr) 1990-07-18

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EP86111814A Expired - Lifetime EP0218864B1 (fr) 1985-09-13 1986-08-26 Dispositif et procédé pour la fabrication continue d'une masse à prise hydraulique

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US (1) US4778276A (fr)
EP (1) EP0218864B1 (fr)
JP (1) JPS6262709A (fr)
CA (1) CA1278567C (fr)
DE (2) DE3532722A1 (fr)
ZA (1) ZA866723B (fr)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3905535C1 (fr) * 1989-02-23 1990-03-15 Signode System Gmbh, 4220 Dinslaken, De
US5031546A (en) * 1989-02-28 1991-07-16 The Dow Chemical Company Hopper car discharge system
JPH0497804A (ja) * 1990-08-15 1992-03-30 Kato Kensetsu:Kk 固定翼を有するバトルミキサ
FR2671754B1 (fr) * 1991-01-22 1997-07-25 Omniplastic Sa Procede et dispositif de preparation, de transfert et d'application en continu d'une suspension minerale aqueuse fluide de ragreage.
DE4124220A1 (de) * 1991-07-20 1993-01-21 Putzmeister Maschf Materialaufgabebehaelter fuer dickstoffpumpen
HU215376B (hu) * 1992-08-27 1998-12-28 Bug Betriebsanlagen- Und Grundbesitz Gmbh. Berendezés szivattyúzható habarcs és hasonló anyagok építkezési helyszínen történő előállítására
DE9319066U1 (de) * 1993-12-14 1994-02-24 Müller, Anton, 79774 Albbruck Mörtelmischmaschine
IT1281757B1 (it) * 1995-03-22 1998-03-03 So Pa Ri S Di Vicchi Giuliano Impastatrice, in particolare per l'edilizia
BE1009507A3 (nl) * 1995-07-18 1997-04-01 Lomar Nv Werkwijze en inrichting voor het toevoegen van bewapeningsvezels aan hardbare bouwspecies, en produkten hiertoe aangewend.
DE29514183U1 (de) * 1995-09-05 1995-11-02 INOTEC GmbH Transport- und Fördersysteme, 79761 Waldshut-Tiengen Mörtelmischmaschine
DE19542663C2 (de) * 1995-11-16 2003-05-15 Wagner Gmbh J Mischvorrichtung
US5795060A (en) * 1996-05-17 1998-08-18 Stephens; Patrick J. Method and apparatus for continuous production of colloidally-mixed cement slurries and foamed cement grouts
US6123445A (en) * 1996-09-16 2000-09-26 Grassi; Frank Dual stage continuous mixing apparatus
IT1287360B1 (it) * 1996-11-08 1998-08-04 Seko Spa Carro trincia-miscelatore-impagliatore provvisto di un gruppo perfezionato per la distribuzione della paglia all'esterno del carro.
DE19719812A1 (de) * 1997-05-13 1998-11-19 Wolfgang Rath Verfahren und Vorrichtung zum Aufbereiten von plastischem Mörtel bzw. Beton
US6309570B1 (en) * 1998-01-14 2001-10-30 American Equipment Systems Vacuum extrusion system for production of cement-based articles
DE29800831U1 (de) * 1998-01-20 1998-04-02 PFT Putz- und Fördertechnik GmbH & Co. KG, 97346 Iphofen Horizontalmischer für Mörtel
DE29817130U1 (de) 1998-09-24 1998-12-24 MBT Anlagenbau GmbH, 79685 Häg-Ehrsberg Vorrichtung zum Anmischen eines Mörtelmaterials mit Wasser
DE19911368B4 (de) * 1999-03-15 2012-10-04 INOTEC GmbH Transport- und Fördersysteme Vorrichtung zum Herstellen von Spritzmörtel zur Verwendung im Naßspritzverfahren
GB2356628B (en) * 1999-11-29 2004-04-28 Innovation Holdings Improvements in and relating to concrete production
FR2867185A1 (fr) * 2004-03-03 2005-09-09 Saint Gobain Vetrotex Procede d'introduction et de dosage d'une matiere de renforcement au sein d'un liant mineral
DE202004020257U1 (de) * 2004-12-28 2006-02-09 Knauf Pft Gmbh & Co.Kg Mischvorrichtung
DE102006049171B4 (de) * 2006-10-18 2009-01-15 Werner Dutschmann Einrichtung zum kontinuierlichen und intensiven Mischen von Trockenmörtel
US7611275B2 (en) * 2007-06-14 2009-11-03 Crespo Pedro R Portable cement mixing and dispensing assembly
DE102007039055B4 (de) * 2007-08-17 2019-11-07 Temafa Maschinenfabrik Gmbh Verfahren zum Öffnen und Dosieren von Fasermaterial
ITNA20080068A1 (it) * 2008-11-28 2010-05-28 Gerardina Ferraro Macchina per la miscelazione in continuo di agglomerati in pietra composita.
US9446361B2 (en) * 2011-10-11 2016-09-20 Modern Process Equipment, Inc. Method of densifying coffee
DE102014005405A1 (de) * 2014-04-14 2015-10-15 Sto Se & Co. Kgaa Vorrichtung zum Anmachen schwer benetzbarer Trockenbaustoffe
DK3646943T3 (da) * 2016-03-01 2023-08-14 Sika Tech Ag Fremgangsmåde til fremstilling af en struktur af byggemateriale
US10272399B2 (en) * 2016-08-05 2019-04-30 United States Gypsum Company Method for producing fiber reinforced cementitious slurry using a multi-stage continuous mixer
KR102406118B1 (ko) * 2016-12-16 2022-06-07 현대자동차 주식회사 롤 앤 브레이크 검사 시스템 및 제어 방법
SG11202000999XA (en) 2017-08-09 2020-03-30 Sika Tech Ag Method for the application of mineral binder compositions containing fibres
DK4086056T3 (da) 2017-08-09 2024-06-17 Sika Tech Ag Fremgangsmåde til fremstilling af en struktur af et byggemateriale
EP3600808B1 (fr) * 2017-08-09 2023-05-10 Sika Technology AG Système d'application d'un matériau de construction

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2337129B2 (de) * 1972-07-22 1979-02-01 Caledonian Mining Co. Ltd., Carltonon-Trent, Nottinghamshire (Grossbritannien) Vorrichtung zum Bereiten und Abgeben von Faser-Beton-Gemischen

Family Cites Families (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US141947A (en) * 1873-08-19 Improvement in mortar-mixers
GB608276A (en) * 1946-02-19 1948-09-13 William Peter Webb Improvements in machines for mixing concrete and the like
GB624017A (en) * 1946-11-04 1949-05-26 Elwin Adam Hawk Methods and apparatus for measuring and controlling a moving column of plastic material
US2525573A (en) * 1947-08-30 1950-10-10 Arthur W Caldwell Concrete mixer
US2538891A (en) * 1948-02-19 1951-01-23 Hoge Warren Zimmerman Co Continuous mixing and delivering apparatus
US2910250A (en) * 1955-01-04 1959-10-27 Emery J Fisher Combination exfoliator and blower
GB787764A (en) * 1955-07-13 1957-12-18 Ici Ltd Improvements in or relating to mixing apparatus
DE1236316B (de) * 1956-10-01 1967-03-09 Robert M Frank Mischverfahren zum Herstellen einer Breimasse aus Fasern und Vorrichtung zur Durchfuehrung dieses Verfahrens
US2917395A (en) * 1957-06-24 1959-12-15 Iowa State College Res Found Method for combining a bituminous binder with an aggregate material
FR1243318A (fr) * 1958-12-29 1960-10-07 Gyproc Products Ltd Perfectionnements apportés aux dispositifs mélangeurs
GB1017183A (fr) * 1961-07-19 1900-01-01
US3211436A (en) * 1961-12-04 1965-10-12 David N Butterfield Concrete-mixing attachment
FR1489131A (fr) * 1966-06-06 1967-07-21 Verre Textile Soc Du Procédé et installation pour l'incorporation de fibres ou fils, naturels ou synthétiques, à des liants minéraux, notamment à des matériaux tels que le plâtre, qu'ils sont destinés à renforcer
DE1684048A1 (de) * 1966-09-16 1971-04-15 Zyklos Metallbau Kg Anordnung zum Mischen und Foerdern von Gips
US3469824A (en) * 1968-02-27 1969-09-30 Irl Daffin Associates Mixing and conveying means
IT981316B (it) * 1972-03-13 1974-10-10 Kobe Steel Ltd Apparecchio impastatore continuo
US4022439A (en) * 1975-07-11 1977-05-10 Caterpillar Tractor Co. Fibrous concrete batch forming system
GB1553196A (en) * 1975-08-20 1979-09-26 London Brick Buildings Ltd Mixer for and method of mixing particulate constituents
US4061316A (en) * 1976-08-16 1977-12-06 Phillips Petroleum Company Carbon black pelleter
AT352986B (de) * 1977-03-09 1979-10-25 Mathis Fertigputz Vorrichtung zur herstellung von angemachtem moertel od.dgl.
GB1599856A (en) * 1978-02-24 1981-10-07 Mathis Fertigputz Mixing apparatus
US4175867A (en) * 1978-03-01 1979-11-27 Maso-Therm Corp. Process and apparatus for static mixing
DE2942325A1 (de) * 1979-10-19 1981-04-30 Gebrüder Lödige Maschinenbau-Gesellschaft mbH, 4790 Paderborn Vorrichtung zum mischen von schuettguetern
DE3013280C2 (de) * 1980-04-05 1983-11-17 Mathis System-Technik Gmbh, 7801 Merdingen Vorrichtung zur insbesondere kontinuierlichen Herstellung von angemachtem Mörtel o.dgl.
US4334788A (en) * 1980-07-15 1982-06-15 Miner Robert M Pin action mixing pump
JPS6048323B2 (ja) * 1980-08-29 1985-10-26 松下電工株式会社 無機質成形材料の成形法
DE3041107C2 (de) * 1980-10-31 1985-01-31 Anton 8973 Hindelang Wachter Vorrichtung zum kontinuierlichen Anmachen von Mörtel
DE3174819D1 (en) * 1980-10-31 1986-07-17 Mathis Systemtechnik Gmbh Process and apparatus for the continuous preparation of mortar, plaster or the like building material
DE3100443A1 (de) * 1981-01-09 1982-08-12 Dietrich Dipl.-Ing. 6240 Königstein Maurer Verfahren und vorrichtung zur herstellung und gegebenenfalls foerderung von aufgeschaeumten gemischen aus bindemitteln oder bindemitteln mit zuschlagstoffen
JPS5925614Y2 (ja) * 1981-04-13 1984-07-27 スギウエエンジニアリング株式会社 現場用レミキシング装置
DE3119811C2 (de) * 1981-05-19 1987-02-19 Georg Schöndorfer GmbH & Co KG, 8230 Bad Reichenhall Verfahren zur kontinuierlichen Herstellung von spritzfähigem Naßbeton sowie Vorrichtung zur Durchführung des Verfahrens
BE893802A (fr) * 1982-07-08 1982-11-03 Maurer Dietrich Procede et dispositif pour la fabrication et eventuellement le transport de melanges en mousse constitues d'agents liants ou d'agents liants avec des additifs
DE3241193A1 (de) * 1982-11-08 1984-05-10 Dietrich Dipl.-Ing. 6240 Königstein Maurer Vorrichtung zum kontinuierlichen mischen von trockengut mit einer fluessigkeit und foerdern des mischgutes
DE3346823A1 (de) * 1983-12-23 1985-07-11 Innkieswerk-GmbH, 8201 Neubeuern Trockenmoertel-mischanlage
DE3347417A1 (de) * 1983-12-29 1985-07-11 Georg 8550 Forchheim Badum Vorrichtung zur aufbewahrung, dosierung und mischung von moertel-materialkomponenten und verfahren zum betrieb der vorrichtung
SU1206115A1 (ru) * 1984-09-24 1986-01-23 Республиканский Трест По Проектированию И Внедрению Новой Техники В Сельском Строительстве "Укроргтехсельстрой" Устройство дл перемешивани строительного раствора

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2337129B2 (de) * 1972-07-22 1979-02-01 Caledonian Mining Co. Ltd., Carltonon-Trent, Nottinghamshire (Grossbritannien) Vorrichtung zum Bereiten und Abgeben von Faser-Beton-Gemischen

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DE3546501C2 (fr) 1988-04-28
DE3532722A1 (de) 1987-03-26
EP0218864A3 (en) 1987-08-05
DE3546501A1 (de) 1987-04-23
ZA866723B (en) 1987-05-27
CA1278567C (fr) 1991-01-02
EP0218864A2 (fr) 1987-04-22
US4778276A (en) 1988-10-18
DE3532722C2 (fr) 1989-09-28
JPS6262709A (ja) 1987-03-19

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