EP0229328B1 - Malaxeur double à mélange forcé pour projection continue et discontinue - Google Patents

Malaxeur double à mélange forcé pour projection continue et discontinue Download PDF

Info

Publication number
EP0229328B1
EP0229328B1 EP86117261A EP86117261A EP0229328B1 EP 0229328 B1 EP0229328 B1 EP 0229328B1 EP 86117261 A EP86117261 A EP 86117261A EP 86117261 A EP86117261 A EP 86117261A EP 0229328 B1 EP0229328 B1 EP 0229328B1
Authority
EP
European Patent Office
Prior art keywords
mixing
twin
trough
mixer according
shafts
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
EP86117261A
Other languages
German (de)
English (en)
Other versions
EP0229328A1 (fr
Inventor
Rudolf Martinek
Johannes Oertel
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.)
BHS Bayerische Berg Hutten und Salzwerke AG
Original Assignee
BHS Bayerische Berg Hutten und Salzwerke 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6288174&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0229328(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BHS Bayerische Berg Hutten und Salzwerke AG filed Critical BHS Bayerische Berg Hutten und Salzwerke AG
Priority to AT86117261T priority Critical patent/ATE66383T1/de
Publication of EP0229328A1 publication Critical patent/EP0229328A1/fr
Application granted granted Critical
Publication of EP0229328B1 publication Critical patent/EP0229328B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B01F27/701—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers
    • B01F27/702—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers with intermeshing paddles

Definitions

  • the invention relates to a double-shaft compulsory mixer for mixing powdery, granular and plastic materials, for example for the production of building material mixtures or the like, comprising a mixing trough and in this mixing trough two mutually parallel end walls that are essentially parallel to one another and to the longitudinal axis of the mixing trough of the mixing trough extending, counter-driven, with - in particular a helix coiled - mixing tools equipped mixing shafts with a substantially horizontally aligned axis of rotation, the direction of rotation of the mixing shafts around their axes of rotation is selected so that the mixing tools between the mixing shafts run upwards, and the Mixing tools of the individual mixing shafts are designed and arranged in such a way that they bring about an opposing direction of conveyance along the individual mixing shafts and thus a circulation along a circulation path, and furthermore a comprehensive feed means for introducing granular and possibly liquid mixed material components into the mixing trough and a closable bottom emptying opening arranged in the mixing
  • the continuously operating double-shaft batch mixer is used for larger throughputs - but with limited mixing quality, and the discontinuously operating double-shaft batch mixer for smaller throughputs - but with high mixing quality.
  • the mixing process takes place continuously in the longitudinal direction of the mixing trough on the path between the inlet and outlet openings.
  • the two mixing shafts are driven in opposite directions so that their mixing tools move upwards between the two shafts.
  • the orientation of the mixing tools on both shafts is such that the mixing tools convey on both shafts in the same direction towards the outlet opening. For good and uniform homogeneity of the mix, it is a prerequisite that all mix components are continuously metered to the mixer without errors will.
  • the double-shaft continuous mixer can no longer correct incorrect dosing at a later date because the mixing process between the two mixing units arranged in parallel takes place only in an effective cross-section moving in the direction of transport (see brochure "BHS continuous mixer” P - 2 / 3-83 , Page 2, "Mixing unit” and special print of an article by Dipl.-Ing. (FH) R. Martinek, Sonthofen, "Double-shaft trough mixer in batch and continuous construction", last page).
  • a double-shaft compulsory mixer for processing feed which operates continuously, the intention being to mix solid feed and liquid feed.
  • the two parallel mixing shafts run in opposite directions, in such a way that the mixing tools run downwards between the mixing shafts.
  • the two mixing shafts convey in opposite directions.
  • An outlet with an adjustable cross-section is provided in the bottom of the mixing trough near one end wall between the two mixing shafts.
  • An inlet opening is provided in the area of the other end wall above the mixing shaft which conveys this other end wall. Batch operation is not possible with this device, since batch operation requires a short-term emptying, which is not possible due to the bottom emptying opening intended for continuous operation.
  • a mixing machine for powdery materials is known from DE-C-29 394, in which the mixing shafts with their mixing tools likewise convey in the opposite direction and the addition and removal are continuous are.
  • the directions of rotation of the mixing shafts are selected so that the mixing tools run upwards between the mixing shafts.
  • the mixing process takes place with a circulating mix movement, but with a simultaneous exchange of mix between the two mixers.
  • the two shafts are driven in opposite directions.
  • the orientation of the mixing tools on the two shafts is such that the mixing tools of the one shaft convey in a first direction and the mixing tools of the second shaft in the opposite direction, so that the result is a circular movement of the material to be mixed.
  • This mode of action creates a particularly intensive mixing of all mix components.
  • a work cycle is made up of: loading, mixing and emptying. The mixing process takes place with the floor discharge opening closed and the mixing duration can be selected.
  • the mixing material components are generally added in batches, and emptying takes place within a short emptying time through an appropriately sized bottom emptying opening which extends in the bottom of the mixing trough between the two shafts almost over the entire length of the mixing trough (see, for example, brochure "BHS- Double-shaft compulsory mixer "h-3 / ll-84, pages 2 and 3 and special print of the essay by Martinek (lc), page l).
  • the invention is based on the object, starting from a double-shaft compulsory mixer of the type described, as is known for example from the prospectus "BHS double-shaft compulsory mixer” h-3 / 11-84, to provide a structure which is equally suitable for batch operation and continuous operation can be used.
  • a discharge opening arrangement is provided for continuous mixing operation, which can be switched between an open position for continuous mixing operation and a closing position for batch-wise mixing operation with the bottom discharge opening closed in each case
  • b) that the discharge opening arrangement is in the region of one of the two End walls is that a suitable and suitable for the continuous loading of the mixing trough with granular mixture components is arranged at a location along the circulation path at an axial distance from the end wall in the area of which the discharge opening arrangement is located.
  • the mixing quality in continuous mixing operation can be adjusted particularly favorably by the fact that the feed of the granular mixture components into the mixing trough lies in the region of the mixing shaft which conveys away from the end wall adjacent to the discharge opening arrangement. In this way, an extended path of the continuously conveyed mix is achieved.
  • Optimal mixing ratios for continuous operation in the sense of suppressing the migration of unmixed granular mixture components to the discharge opening arrangement can be achieved if the feed of the feed means of the granular mixture components is at a distance from the end wall which is distant from the discharge opening arrangement, which is approximately 30 to 70% the clear length of the mixing trough in the mixing shaft direction.
  • the discharge opening arrangement can extend approximately between the deepest points of the double trough-shaped bottom of the mixing trough, which means that even liquid residues are reliably removed.
  • the feed means for liquid mixed material components are arranged approximately along the entire batch circulation path within the mixing trough, and that, for continuous operation, the liquid outflow from the feed means can be limited to a partial extent of the batch circulation path along an end wall and along the mixing shafts, in particular on the partial circumference from the point at which the feed means of the granular mix component to a point in front of the discharge opening arrangement.
  • the double-shaft compulsory mixer can also be adapted to the mode of operation with a simple changeover measure with regard to the liquid requirement.
  • the proposed restriction of the liquid supply to part of the batch recirculation path is advantageous because it can prevent unmixed liquid from escaping.
  • the changeover from batch operation to continuous operation becomes particularly easy when the feed means for the liquid mixed material components consist of two separately supplied U-tubes with liquid delivery points distributed over their length, which are arranged above the mixing shafts, with a first one intended for continuous operation U-tube - viewed in plan view - runs approximately along the mixing shaft axes and along the end wall remote from the discharge opening arrangement, and a second U-tube supplements the first U-tube to form an approximately closed loop.
  • the feeding means for the granular mixture components comprise a separate feeding point, in particular an inlet funnel, for batch feeding, namely between the two mixing shafts and preferably in the longitudinal center of the mixing trough between the two end walls.
  • the two mixing units are equipped with a reversing device at the end at which the movement of the batch of material caused by them hits an end wall, which the material to be mixed is deflected along the respective end wall towards the other mixer.
  • a baffle element In order to be able to influence the circulating movement of the batch of material in the mixing trough, it is possible for a baffle element to be arranged in the circulation path of the batch of material in front of the discharge opening arrangement, in a rigid or adjustable manner, for example by pivoting or pulling out.
  • This dam element can be provided with openings of any number, shape and size. This damming element is particularly advantageous for the continuous mode of operation in order to be able to regulate the discharge.
  • the discharge opening arrangement can be designed with a single or double flat slide closure, but also with a single or double flap closure or also with a segment closure.
  • a single or double flap closure is also an alternative to the rotary slide closure in view of the large length.
  • This fill level control can measure the batch size or the fill level by means of a batch size signal transmitter, in particular a fill level probe, and correct deviations from a target size by changing the mix component loading and / or the mix exit.
  • the double-shaft compulsory mixer for continuous and / or discontinuous operation essentially consists of a mixing trough 1 with at least one elongated, rectangular bottom emptying opening 2 arranged at the bottom in the longitudinal direction yy, which can be opened or closed via an emptying closure 9 and over most of the length of the floor.
  • a discharge opening arrangement 3 is arranged transversely to the longitudinal direction y-y in a squat, rectangular shape at the bottom in the mixing trough, near the trough end wall l2 and can also be opened or closed via an emptying closure l0.
  • the two drainage closures 9 and 10 together take up almost the entire length of the bottom.
  • mixers 5 and 6 are provided, the horizontal shafts 4 of which are mounted on both sides outside the trough end walls l2 and l3 in bearings 8 and via a z.
  • one-sided mixer drive 7 driven synchronously in the opposite direction of rotation x will.
  • Both mixers 5 and 6 are paddle mixers which consist of a transport and mixing device, ie of several mixing arms 14 arranged in series with mixing blades 15 and a reversing device, ie of at least one clearing arm 16 with a reversing tool, namely a clearing blade 17, and each on a mixing shaft 4 are fastened, the mixing blades l5 having the same direction, but left-handed spiral, the clearing blades 17 being arranged opposite, that is to say right-handed.
  • each mixing unit in the area of the storage zone A near the trough end walls l2 and l3 is equipped with at least one clearing arm l6, one of which clearing bucket l7 arranged in an oppositely increasing manner, which transports the jammed mix out of the accumulation zone A to the suction zone B and thereby gives the mix a deflection movement component away from the associated end wall l2, l3.
  • This process also substantially supports the circulating mix movement z and keeps it flowing.
  • a so-called storage plate 11, rigid or adjustable, can be swung out or pulled out, which, depending on the requirement, also has openings 18 can be provided in any number, shape and size.
  • the circulating mix movement z can be additionally slowed down as required with the aim of increasing the residence time or throughput time of the mix in the mixing trough.
  • a covering hood 19 is arranged above the mixing trough 1, in which at least two inlet funnels 20 and 21 for the addition of the granular mixture components and two U-shaped pipes 22 and 23 for the addition of the liquid mixture components are arranged.
  • the inlet funnel 20 is attached to a defined feed point above the longitudinal axis of the mixer 6. This ensures that with continuous operation the mixing process between the paddle mixers 5 and 6 takes place over a long transport path, starting at the feed point E and ending at the emptying point F.
  • a second inlet funnel 21 can be arranged in the middle area of the mixing trough between the paddle mixers 5 and 6, in order to be able to add the granular mix components in the middle of the trough with discontinuous operation and difficult to mix mixes with the aim of reducing the mixing time and increasing the mixer throughput.
  • L o is the distance from the center E to the mixing trough front wall 13; L is the inner length of the mixing trough 1 between the end walls 12 and 13.
  • the U-shaped pipelines 22 and 23 are provided with holes or nozzles 24 and with pipe connections 27 laid at any point to the outside, via which the liquid mixture components are supplied.
  • the legs of both U-shaped stirring lines are of different lengths.
  • the charging means 22 for the liquid mixed material components extend to a point L 1 which is approximately 50 to 85%, preferably approximately 75%, of the clear mixed tub length L. from that of the discharge port arrangement 3 distant end wall l3 is removed.
  • the U-shaped pipeline 22 is used in discontinuous operation.
  • any mix e.g. also concrete and mortar or mineral mixtures for hydraulically bound base layers for road construction in continuous or discontinuous mode of operation through the advantage of the circulating mixture movement in direction z with simultaneous mixture exchange between the two mixers 5 and 6 with high mixing quality.
  • both openings 2 and 3 remain closed while the mixing trough 1 is being filled.
  • the filling process is interrupted and the mixture introduced is completed within an adjustable pre-mixing time.
  • the continuous mode of operation is initiated by a regulated, continuous emptying of the material to be mixed with a simultaneous, coordinated continuation of continuous mixer loading.
  • this measure ensures a uniform, homogeneous mix from start to finish without the disadvantageous fluctuations in homogeneity during the filling phase, as is inherent in the known continuous mixing process.
  • the time for the material flow to be switched off after the filling phase can be controlled either via a timing relay, level probe or the load on the drive motor.
  • each continuous mixing process begins with the emptying phase or switching off the mixer feed.
  • the emptying phase takes place when the discharge opening arrangement 3 is open and lasts until the mixing trough is cleared. By additionally opening the bottom emptying opening 2, the complete emptying of the mixing trough can be accelerated.
  • the mixer operates discontinuously, all of the granular and liquid components of the mix are metered in batches, the granular components likewise being able to be added via the inlet funnel 20 or else via the second inlet funnel 2l. However, the liquid mixture components are to be metered simultaneously via the separate pipes 22 and 23. Depending on the requirements in the discontinuous mode of operation, the dust plate 11 can either be partially or completely pivoted out or be pulled out.
  • the mixing process takes place at any desired mixing duration and always with openings 2 and 3 closed.
  • openings 2 and 3 For emptying the mixing trough, it is preferable to use the bottom emptying opening 2, but it is also possible to empty both openings 2 and 3 at the same time in order to accelerate the emptying process .
  • the closure 9 for the bottom emptying opening 2 can be designed as a rotary slide closure or as a single or double flap closure, any opening positions being adjustable.
  • the closure 10 for the discharge opening arrangement 3 can be designed as a single or double flap closure, as a segment closure or also as a single or double flat slide closure, wherein in the double flat slide closure both flat slides can be arranged offset in height from one another.
  • twin-shaft batch mixer can also be used to fall or rise in the longitudinal direction.
  • a start-up batch of granular mixing components is first entered through the funnels 20 and / or 2l.
  • the corresponding amount of liquid mix components is supplied through the U-tubes 22 and / or 23.
  • the two openings 2 and 3 are closed.
  • mixing is first carried out without removal, the mixing occurring especially in the area between the two shafts 4, where the mixing blades going upward cause turbulence to promote the mixing process.
  • the start-up phase ends.
  • Granular mixture components are now continuously fed through the feed hopper 20, possibly premixed or in parallel flows.
  • the discharge opening arrangement 3 is opened, to the extent that a quantity of mixed material is drawn off per time unit which corresponds to the mixed material components supplied per unit time.
  • liquid mixture components are continuously supplied through the U-tube 22.
  • the granular mix components can comprise fine powdery components up to coarse-grained components.
  • the mutual coordination of the supply of mixed material components through the hopper 20 and the tapping of mixed material through the discharge opening arrangement 3 is carried out by a control system, not shown, which ensures that the batch of mixed material stationary in the mixing trough remains constant. If there is temporarily no need for mixed material, the supply of mixed material components and the drawing off of mixed material can be temporarily stopped without the mixing units 5 and 6 being switched off.
  • the position of the inlet funnel 20 ensures that there is a relatively long way for the mixed material components added through the inlet funnel 20 to reach the discharge opening arrangement 3 in continuous operation.
  • the inlet funnel 20 should not be approached up to the immediate vicinity of the end wall l2, since in this case the cross-conveying action of the mixing blades l5 could lead to unmixed mixture components getting into the area of the mixer 5 and through its mixing blades on a too short remaining path to the Discharge opening arrangement 3 are transported.
  • the system If the system is to be shut down, it can be emptied gradually through the discharge opening arrangement 3 after the supply of the mixed material components has been switched off, or very much faster through the additional opening of the bottom emptying opening 2.
  • the mix components are preferably fed through the hopper 2l, which can be dimensioned so large that it can be loaded, for example, by means of a gripper. Basically, however, feeding through the inlet funnel 20 is also possible for discontinuous operation. Mixing takes place with openings 2 and 3 closed until the desired homogenization is achieved. The entire batch is then removed through the bottom emptying opening 2 and, if appropriate, additionally through the discharge opening arrangement 3.
  • the liquid mixed material components are preferably supplied only at the beginning of the same approximately simultaneously or immediately after the introduction of the granular mixed material component, namely by both U. -Tubes 22 and 23.
  • a particular advantage of the invention lies in the fact that one and the same system can be used both continuously and batchwise. Continuous work is carried out, for example, when mix material is continuously requested, for example on large trucks with a flying loading change, concrete pumps, etc. By appropriately coordinating the continuous supply of mix material and the continuous supply of mix material to the size of the stationary batch circulated in the mixing trough for a more or less qualitative high-quality mix. On the one hand, you can work with a high output, for example when you need a lean concrete for road substructures, the quality of which is not subject to any special requirements, and on the other hand, you can also obtain a high-quality mix in continuous operation with a correspondingly lower throughput.
  • the discontinuous mode of operation will generally be used for the production of mixed material of the highest quality and, on the other hand, when the mixed material is required in batches, in large quantities per unit of time.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Control Of Ac Motors In General (AREA)
  • Control Of Direct Current Motors (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Claims (16)

  1. Malaxeur double à mélange forcé pour le malaxage de produits pulvérulents, granuleux et plastiques, par exemple pour la préparation de mélanges de matériaux de construction ou similaires, comportant une cuve de malaxage (1) et dans cette cuve de malaxage (1), deux arbres de malaxage (4) à peu près parallèles entre eux et à l'axe longitudinal de la cuve de malaxage (1), s'étendant entre des parois frontales (12, 13), opposées l'une à l'autre, de la cuve de malaxage (1), entraînés en sens inverse, équipés d'outils de malaxage (15) - enroulés notamment selon une ligne hélicoïdale -, le sens de rotation (x) des arbres de malaxage (4) autour de leurs axes de rotation étant choisi tel que les outils de malaxage (15) tournent vers le haut entre les arbres de malaxage (4) et les outils de malaxage (15) de chacun des arbres de malaxage (4) étant conçus et disposés de telle sorte qu'ils entraînent un sens de transport contraire le long de chacun des arbres de malaxage (4) et donc une circulation le long d'un parcours de circulation (z), et comportant en outre des moyens de chargement (20, 22) pour introduire des constituants granuleux et éventuellement liquides de produits à mélanger dans la cuve de malaxage (1) et une ouverture de vidange de fond (2), placée au fond de la cuve de malaxage entre les deux arbres de malaxage (4), pouvant être fermée et s'étendant sur une grande partie de la longueur de cuve (L), se présentant notamment sous la forme d'une fermeture à tiroir tournant (9), caractérisé en ce que
    a) il est prévu pour le malaxage continu, un dispositif d'ouverture d'extraction (3) qui peut passer d'une position d'ouverture pour le malaxage continu à une position de fermeture pour le malaxage discontinu, lorsque l'ouverture de vidange de fond (2) est fermée,
    b) le dispositif d'ouverture d'extraction (3) se situe dans la région de l'une (12) des deux parois frontales (12, 13),
    c) un moyen de chargement (20), destiné et convenant au chargement continu de la cuve de malaxage avec des constituants granuleux des produits à mélanger, est placé en un point situé le long du parcours de circulation, à une distance axiale de la paroi frontale (12) dans la région de laquelle est situé le dispositif d'ouverture d'extraction (3).
  2. Malaxeur double à mélange forcé selon la revendication 1, caractérisé en ce que l'embouchure (E) des moyens de chargement (20) des constituants granuleux des produits à mélanger, dans la cuve de malaxage (1), se situe dans la région de l'arbre de malaxage (4) qui éloigne les produits de la paroi frontale (12) voisine du dispositif d'ouverture d'extraction (3).
  3. Malaxeur double à mélange forcé selon la revendication 2, caractérisé en ce que l'embouchure (E) des moyens de chargement (20) des constituants granuleux des produits à mélanger se situe à une distance de la paroi frontale (13), éloignée du dispositif d'ouverture d'extraction (3), cette distance représentant environ 30 à 70 % de la longueur intérieure de la cuve de malaxage (1) dans la direction des arbres de malaxage.
  4. Malaxeur double à mélange forcé selon l'une des revendications 1 à 3, caractérisé en ce que le dispositif d'ouverture d'extraction (3) est plus grand dans la direction transversale aux arbres de malaxage (4) que dans la direction des arbres de malaxage.
  5. Malaxeur double à mélange forcé selon la revendication 4, caractérisé en ce que le dispositif d'ouverture d'extraction (3) s'étend à peu près entre les points les plus bas du fond de la cuve de malaxage (1), ayant la forme d'une auge double.
  6. Malaxeur double à mélange forcé selon l'une des revendications 1 à 5, caractérisé en ce que les moyens de chargement (22, 23) des constituants liquides des produits à mélanger sont placés à peu près le long de l'ensemble du parcours de circulation des charges (z) à l'intérieur de la cuve de malaxage (1) et en ce que pour le fonctionnement continu, la sortie de liquide des moyens de chargement (22) est limitée à une partie de la circonférence du parcours de circulation des charges (z), le long d'une paroi frontale (12, 13) et le long des arbres de malaxage (4), notamment à la partie de circonférence à partir de l'embouchure (E) des moyens de chargement (20) des constituants granuleux des produits à mélanger jusqu'à un point (L₁) se trouvant devant le dispositif d'ouverture d'extraction (3).
  7. Malaxeur double à mélange forcé selon la revendication 6, caractérisé en ce que les moyens de chargement (22, 23) des constituants liquides des produits à mélanger sont constitués de deux tubes en U (22, 23), alimentés séparément, avec des points de prélèvement de liquide, répartis sur leur longueur, qui sont disposés au-dessus des arbres de malaxage (4), un premier tube en U (22), destiné au fonctionnement en continu s'étendant - vu de dessus - à peu près le long des axes des arbres de malaxage et le long de la paroi frontale éloignée du dispositif d'ouverture d'extraction (3) et un deuxième tube en U (23) complétant le premier tube en U (22), pour former une boucle à peu près fermée.
  8. Malaxeur double à mélange forcé selon l'une des revendications 2 à 7, caractérisé en ce que les moyens de chargement (20, 21), pour les constituants granuleux des produits à mélanger, comportent un point de chargement (21) séparé pour le chargement discontinu, à savoir entre les deux arbres de malaxage (4) et de préférence au milieu de la longueur de la cuve de malaxage, entre les deux parois frontales (12, 13).
  9. Malaxeur double à mélange forcé selon l'une des revendications 1 à 8, caractérisé en ce que les deux mécanismes de malaxage (5, 6) sont équipés chacun à l'extrémité (A) à laquelle la charge de produits à mélanger vient heurter une paroi frontale (12, 13), du fait du mouvement qu'ils provoquent, d'un dispositif d'inversion (17) qui dévie les produits à mélanger, le long de la paroi frontale (12, 13) respective, vers l'autre mécanisme de malaxage (6, 5).
  10. Malaxeur double à mélange forcé selon l'une des revendications 1 à 9, caractérisé en ce qu'un élément de retenue (11) est placé dans le parcours de circulation (z) de la charge de produits à mélanger, devant le dispositif d'ouverture d'extraction (3), et ce de manière rigide ou réglable, par exemple par pivotement ou par retrait.
  11. Malaxeur double à mélange forcé selon la revendication 10, caractérisé en ce que l'élément de retenue (11) est pourvu d'ajours (18) de nombre, forme et dimensions quelconques.
  12. Malaxeur double à mélange forcé selon l'une des revendications 1 à 11, caractérisé en ce que le dispositif d'ouverture d'extraction (3) comporte une fermeture à tiroir plat simple ou double (10), les deux tiroirs plats se fermant l'un vers l'autre et étant disposés décalésen hauteur l'un par rapport à l'autre, dans le cas d'une fermeture à tiroir plat double.
  13. Malaxeur double à mélange forcé selon l'une des revendications 1 à 11, caractérisé en ce qu'une fermeture à volet simple ou double (10) ou une fermeture à segments est associée au dispositif d'ouverture d'extraction (3).
  14. Malaxeur double à mélange forcé selon l'une des revendications 1 à 13, caractérisé en ce qu'une fermeture à volet simple ou double est associée à l'ouverture de vidange (2).
  15. Malaxeur double à mélange forcé selon l'une des revendications 1 à 14, caractérisé en ce qu'il est prévu une régulation du niveau.
  16. Malaxeur double à mélange forcé selon la revendication 15, caractérisé en ce que la régulation de niveau mesure la grandeur des charges ou le niveau, au moyen d'un transmetteur de signaux de grandeur de charge, notamment au moyen d'une sonde de niveau et corrige les écarts par rapport à une valeur de consigne, en faisant varier le chargement des constituants du mélange et/ou la sortie des produits mélangés.
EP86117261A 1985-12-11 1986-12-11 Malaxeur double à mélange forcé pour projection continue et discontinue Expired - Lifetime EP0229328B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86117261T ATE66383T1 (de) 1985-12-11 1986-12-11 Doppelwellen-zwangsmischer fuer kontinuierliche und diskontinuierliche arbeitsweise.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3543745 1985-12-11
DE19853543745 DE3543745A1 (de) 1985-12-11 1985-12-11 Doppelwellen-zwangsmischer fuer kontinuierliche und diskontinuierliche arbeitsweise

Publications (2)

Publication Number Publication Date
EP0229328A1 EP0229328A1 (fr) 1987-07-22
EP0229328B1 true EP0229328B1 (fr) 1991-08-21

Family

ID=6288174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86117261A Expired - Lifetime EP0229328B1 (fr) 1985-12-11 1986-12-11 Malaxeur double à mélange forcé pour projection continue et discontinue

Country Status (6)

Country Link
US (1) US4775239A (fr)
EP (1) EP0229328B1 (fr)
JP (1) JPS62140633A (fr)
AT (1) ATE66383T1 (fr)
DE (2) DE3543745A1 (fr)
ES (1) ES2025554T3 (fr)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2598349B1 (fr) * 1986-05-07 1988-09-23 Gilles Pierre Procede de fabrication de murs en pises, ou terre stabilisee, machine a projeter adaptee a sa mise en oeuvre, et mur ainsi obtenu
DE3721533C1 (de) * 1987-06-30 1988-10-06 Lothar Dipl-Ing Teske Vorrichtung zum Foerdern und Mischen zum Beispiel eines Schuettgutes
CH680196A5 (fr) * 1988-02-16 1992-07-15 List Ag
US5061082A (en) * 1989-11-27 1991-10-29 J.C. Steele & Sons, Inc. Replaceable pug mill blade
DE4112663A1 (de) * 1991-04-18 1992-10-22 Elba Werk Maschinen Gmbh & Co Entleerungseinrichtung fuer einen doppelwellen-zwangsmischer
AU705151B2 (en) * 1995-06-13 1999-05-13 Nippon Petrochemicals Company Limited Method of continuous extraction of crude wax and apparatus therefor
US5791779A (en) * 1996-07-09 1998-08-11 Sandmold Systems, Inc. Mixing assembly for continuous mixer
US5810475A (en) * 1996-09-16 1998-09-22 Brownwood Ross Company, Inc. Single discharge door for continuous or batching operation of twin-shaft twin-trough mixers
US5881796A (en) * 1996-10-04 1999-03-16 Semi-Solid Technologies Inc. Apparatus and method for integrated semi-solid material production and casting
US5887640A (en) 1996-10-04 1999-03-30 Semi-Solid Technologies Inc. Apparatus and method for semi-solid material production
DE19743470A1 (de) * 1997-10-01 1999-04-08 Buehler Ag Verfahren und Vorrichtung zum Vorkonditionieren des in einem Extruder zu verarbeitenden Produktes und dgl.
EP1121214A4 (fr) 1998-07-24 2005-04-13 Gibbs Die Casting Aluminum Procede et appareil de moulage semi-solide
US6367959B1 (en) * 2000-02-19 2002-04-09 General Kinematics Corporation Method and apparatus for blending water with sand
US6450679B1 (en) * 2000-10-23 2002-09-17 Guntert & Zimmerman Const. Div., Inc. Large volume twin shaft compulsory mixer
DE10222080A1 (de) * 2002-05-17 2003-11-27 Bhs Sonthofen Maschinen & Anlagenbau Gmbh Seitenschaufel, Doppelwellenmischer mit Seitenschaufel
DE10321350B4 (de) * 2003-05-13 2005-04-21 Lurgi Ag Mischvorrichtung
US6981795B2 (en) * 2003-07-25 2006-01-03 Sylmark Holdings Limited Multiple blade blender apparatus
DE10342982B3 (de) * 2003-09-17 2005-02-10 Emsland-Stärke GmbH Verfahren und Vorrichtung zur Durchmischung von gekochter Kartoffelsubstanz mit getrocknetem Kartoffelpulver
DE602005019278D1 (de) * 2004-03-24 2010-03-25 Ian Geoffrey Wilson Verbesserte mischvorrichtung
DE102006022660A1 (de) * 2006-05-12 2007-11-15 Gebrüder Lödige Maschinenbau -Gesellschaft mit beschränkter Haftung Mischer mit Abstreifern
JP2008212888A (ja) * 2007-03-07 2008-09-18 Kyc Machine Industry Co Ltd 粘性流体混練用２軸ミキサ
NL1034022C2 (nl) * 2007-06-22 2008-12-23 Goudsche Machf B V Inrichting voor warmtewisseling met radiaal mengen.
CA2638157C (fr) * 2008-07-24 2013-05-28 Sunopta Bioprocess Inc. Methode et appareil permettant le transport d'une charge d'alimentation cellulosique
CA2638160C (fr) * 2008-07-24 2015-02-17 Sunopta Bioprocess Inc. Methode et appareil permettant le transport d'une charge d'alimentation cellulosique
CA2638152C (fr) * 2008-07-24 2013-07-16 Sunopta Bioprocess Inc. Methode et appareil permettant le traitement d'une charge d'alimentation cellulosique
US9127325B2 (en) 2008-07-24 2015-09-08 Abengoa Bioenergy New Technologies, Llc. Method and apparatus for treating a cellulosic feedstock
US8915644B2 (en) 2008-07-24 2014-12-23 Abengoa Bioenergy New Technologies, Llc. Method and apparatus for conveying a cellulosic feedstock
CA2650913C (fr) * 2009-01-23 2013-10-15 Sunopta Bioprocess Inc. Methode et appareillage de transport de produits de depart cellulosiques
CA2638159C (fr) * 2008-07-24 2012-09-11 Sunopta Bioprocess Inc. Methode et appareil permettant le traitement d'une charge d'alimentation cellulosique
CA2638150C (fr) * 2008-07-24 2012-03-27 Sunopta Bioprocess Inc. Methode et appareil permettant le transport d'une charge d'alimentation cellulosique
CA2650919C (fr) * 2009-01-23 2014-04-22 Sunopta Bioprocess Inc. Methode et installation de transport de produit de depart cellulosique
CA2673134A1 (fr) * 2009-07-17 2011-01-17 Murray J. Burke Methode et appareillage de traitement thermique de produit de depart cellulosique en amont d'hydrolyse
CA2755981C (fr) 2009-08-24 2015-11-03 Abengoa Bioenergy New Technologies, Inc. Procede de production d'ethanol et de co-produits a partir de la biomasse cellulosique
US9713893B2 (en) 2013-07-09 2017-07-25 Wenger Manufacturing, Inc. Method of preconditioning comestible materials using steam/water static mixer
US9567716B2 (en) 2014-02-25 2017-02-14 Dbi Holding, Llc Systems and methods for automating the application of friction-modifying coatings
US9109332B1 (en) 2014-02-25 2015-08-18 Dbi Holding, Llc Systems and methods for automating the application of friction-modifying coatings
US10808368B2 (en) 2014-02-25 2020-10-20 Dbi Holding, Llc Systems and methods for automating the application of friction-modifying coatings
TWM517017U (zh) * 2015-11-25 2016-02-11 Hundred Machinery Entpr Co Ltd 攪料送餡結構
DE102016108108A1 (de) * 2016-05-02 2017-11-02 Marco Systemanalyse Und Entwicklung Gmbh Vorrichtung und verfahren zum mischen von komponenten
US11166408B2 (en) 2019-02-01 2021-11-09 Cnh Industrial Canada, Ltd. Operation of an agricultural agitating system
CN110978267A (zh) * 2019-12-13 2020-04-10 周狄超 一种建筑装修用工程搅拌装置
WO2021162658A1 (fr) * 2020-02-10 2021-08-19 Elkon Elevatör Konveyör Ve Maki̇na Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Nouveauté dans un mélangeur de stabilisation mécanique
GR1010334B (el) * 2022-01-12 2022-11-09 Spanos Group Ικε, Μεθοδος παραγωγης σκυροδεματος με εξοικονομηση ενεργειας
CN115318129B (zh) * 2022-08-24 2024-07-19 芜湖市从众建设有限公司 一种沥青混合料的多向搅拌装置

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE182350C (fr) *
DE344691C (fr) *
DE29394C (de) * B. WEIBEZAHL in Magdeburg Mischmaschine für pulverige Materialien
DE469230C (de) * 1926-04-13 1928-12-05 Bhs Bayerische Berg Drehschieberverschluss, insbesondere fuer Mischtroege von Betonmischmaschinen u. dgl.
GB769106A (en) * 1954-08-26 1957-02-27 Horace Fritz Beken Improvements in and relating to mixing machines
US2861787A (en) * 1956-06-20 1958-11-25 Iowa State College Res Found Apparatus for mixing finely-divided solids with liquids
DE1112968B (de) * 1958-08-22 1961-08-24 Wibau Gmbh Vorrichtung zum kontinuierlichen Mischen von Feststoffen mit verfluessigten, vorzugsweise thermoplastischen, insbesondere bituminoesen Bindemitteln
DE1584597B1 (de) * 1966-10-26 1970-04-23 Buckau Wolf Maschf R Verfahren zum Mischen von Baustoffen
AU458100B2 (en) * 1968-07-10 1975-01-31 Francis Shaw And Company Manchester Limited Improvements relating to mixing machines
DE1928537C3 (de) * 1969-06-04 1981-03-12 Exxon Research and Engineering Co., 07036 Linden, N.J. Verfahren zur Gewinnung von reinem Isophoron
DE2166430A1 (de) * 1971-08-20 1974-01-10 Bhs Bayerische Berg Walzenfoermiger entleerschieber fuer doppelwellen-zwangsmischer
DE2141908B2 (de) * 1971-08-20 1973-12-06 Bayerische Berg-, Huetten- Und Salzwerke Ag, 8000 Muenchen Zwangsmischer fur kornige Massen
DE2223792A1 (de) * 1971-09-20 1973-03-29 Nagema Veb K Vorrichtung zum mischen und kneten, insbesondere von schokoladenmasse
DE2343237A1 (de) * 1972-09-08 1974-03-21 Parker Ltd Frederick Vorrichtung fuer das verarbeiten oder behandeln von material, wie stein, kies, asphalt oder dergleichen
DE7631682U1 (de) * 1976-10-09 1977-02-03 Kloeckner, Hermann, 3436 Hessisch- Lichtenau Mischvorrichtung zur aufbereitung von futtermitteln
DE3012707C2 (de) * 1980-04-01 1983-02-10 BHS-Bayerische Berg-, Hütten- und Salzwerke AG, 8000 München Mischwerk für Trogmischer
JPS60202721A (ja) * 1984-03-23 1985-10-14 Inoue Seisakusho:Kk 捏和装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Sonderdruck R. Martinek "Doppelwellen-Trogmischer in Chargen- und kontinuierlicher Bauweise", BHS, Sonthofen, 1983 *

Also Published As

Publication number Publication date
EP0229328A1 (fr) 1987-07-22
DE3543745A1 (de) 1987-06-19
US4775239A (en) 1988-10-04
DE3681006D1 (de) 1991-09-26
ATE66383T1 (de) 1991-09-15
JPH048096B2 (fr) 1992-02-14
JPS62140633A (ja) 1987-06-24
ES2025554T3 (es) 1992-04-01

Similar Documents

Publication Publication Date Title
EP0229328B1 (fr) Malaxeur double à mélange forcé pour projection continue et discontinue
DE2337129C3 (de) Vorrichtung zum Bereiten und Abgeben von Faser-Beton-Gemischen
DE102010035893B3 (de) Beschickungsvorrichtung für Glasschmelzanlagen und Verfahren zum Einlegen von partikelförmigem Beschickungsgut
EP0728066A1 (fr) Melangeur a plusieurs arbres fonctionnant en continu pour matieres plastifiables
DE69301392T2 (de) Mischapparat für Pulvermaterial
EP0584573B1 (fr) Dispositif pour la fabrication de mortier apte à être pompé sur le chantier
DE1244723B (de) Vorrichtung zum kontinuierlichen Mischen von trockenem Gut mit einer Fluessigkeit
DE4119261A1 (de) Vorrichtung zur baustellenseitigen herstellung von pumpfaehigen moertelmassen
EP0134945B1 (fr) Dispositif de mélange et de dosage pour matières en vrac
DE1089251B (de) Mischvorrichtung fuer koerniges Material
EP0937969A1 (fr) Dispositif pour produits en vrac pouvant s'écouler
DE1112968B (de) Vorrichtung zum kontinuierlichen Mischen von Feststoffen mit verfluessigten, vorzugsweise thermoplastischen, insbesondere bituminoesen Bindemitteln
DE4217585C2 (de) Verfahren zum Füllen einer Form mit einem Steinmaterialgemisch zur Herstellung einer Platte aus diesem Material und Vorrichtung zur Durchführung des Verfahrens
DE1924922A1 (de) Mischmaschine
DE102006043596B3 (de) Fördervorrichtung
DE2360644B2 (de) Vorrichtung zum mischen dosierter mengen eines kunststoffs und mindestens eines zusatzstoffes
DE8534830U1 (de) Doppelwellen-Zwangsmischer für kontinuierliche und diskontinuierliche Arbeitsweise
DE2953699C2 (de) Mischer, insbesondere Betonmischer
DE1782327C3 (fr)
DE2513115C2 (de) Egalisiervorrichtung
DE1291185B (de) Maschine zum Mischen und Foerdern von Schuettgut
DE2523374A1 (de) Vorrichtung zur kontinuierlichen herstellung von angemachtem moertel
DE19806729C1 (de) Dosiervorrichtung für rieselfähige Schüttgüter
DE4410840C2 (de) Mischer
DE4112663A1 (de) Entleerungseinrichtung fuer einen doppelwellen-zwangsmischer

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19870923

17Q First examination report despatched

Effective date: 19881215

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 66383

Country of ref document: AT

Date of ref document: 19910915

Kind code of ref document: T

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 3681006

Country of ref document: DE

Date of ref document: 19910926

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2025554

Country of ref document: ES

Kind code of ref document: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: RICHARD FRISSE GMBH

Effective date: 19920524

NLR1 Nl: opposition has been filed with the epo

Opponent name: RICHARD FRISSE GMBH.

PLBJ Opposition found inadmissible

Free format text: ORIGINAL CODE: 0009275

26U Opposition found inadmissible
NLXE Nl: other communications concerning ep-patents (part 3 heading xe)

Free format text: PAT.BUL.18/92 OPPOSITION HAS BEEN DECLARED INADMISSABLE

EAL Se: european patent in force in sweden

Ref document number: 86117261.7

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: SKW TROSTBERG AKTIENGESELLSCHAFT TRANSFER- BHS-SON

Ref country code: CH

Ref legal event code: PFA

Free format text: BHS - BAYERISCHE BERG-, HUETTEN- UND SALZWERKE AKTIENGESELLSCHAFT TRANSFER- SKW TROSTBERG AKTIENGESELLSCHAFT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20010914

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20011008

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20011010

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20011015

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20011109

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20011120

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20011212

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20011214

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20011231

Year of fee payment: 16

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021211

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021212

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021231

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021231

BERE Be: lapsed

Owner name: *BHS-BAYERISCHE BERG-, HUTTEN- UND SALZWERKE A.G.

Effective date: 20021231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030701

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030701

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20030701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030901

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20021212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051211

RIN2 Information on inventor provided after grant (corrected)

Inventor name: OERTEL, JOHANNES

Inventor name: MARTINEK, RUDOLF