EP2361159B1 - Étoile de criblage destinée notamment à un crible à étoiles - Google Patents

Étoile de criblage destinée notamment à un crible à étoiles Download PDF

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Publication number
EP2361159B1
EP2361159B1 EP09812483.7A EP09812483A EP2361159B1 EP 2361159 B1 EP2361159 B1 EP 2361159B1 EP 09812483 A EP09812483 A EP 09812483A EP 2361159 B1 EP2361159 B1 EP 2361159B1
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EP
European Patent Office
Prior art keywords
star
sieve
fingers
shaft
flange
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.)
Not-in-force
Application number
EP09812483.7A
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German (de)
English (en)
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EP2361159A2 (fr
Inventor
Johann Doppstadt
Horst Berger
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Doppstadt Familienholding GmbH
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Doppstadt Familienholding GmbH
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Publication date
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Priority to PL09812483T priority Critical patent/PL2361159T3/pl
Publication of EP2361159A2 publication Critical patent/EP2361159A2/fr
Application granted granted Critical
Publication of EP2361159B1 publication Critical patent/EP2361159B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/12—Apparatus having only parallel elements
    • B07B1/14—Roller screens
    • B07B1/15—Roller screens using corrugated, grooved or ribbed rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/50—Cleaning

Definitions

  • the invention relates to a Siebstem, in particular for a screening machine, wherein the Siebstem is substantially disc-shaped and can be arranged on a shaft, starting from the center of the Siebstems at least two outwardly extending Stemenfinger, teeth or the like are provided.
  • the invention also relates to a screening machine with such a sieve.
  • Such screening machines are known. They consist of a large number of rows of sieves in rows next to each other, forming a surface consisting of sieve elements. These are spaced from each other on waves. There are gaps between the individual screen elements, so that the staggered strains of two waves can intervene in the spaces between the other screens.
  • the stars of each row are rotatably mounted on axles or shafts. The stars are put into a rotary motion for the sieving process and, as already mentioned, interlock during the rotary movement. The distance of the stars and / or their offset determine the Siebatter grains size of the screened material.
  • the material from which the stars are usually formed is plastic, hard rubber or the like. For harder to be screened materials, such. As ballast, the use of steel is possible.
  • Such screening machines are very versatile. For example, for screening of gravel, shredded material, compost or cohesive soil, gravel, sand or the like such screening machines are used. If wet and heavy material is sieved, the problem arises that the sieves or the gaps between the sieve elements become clogged with adhering material. The cleaning of soiled sieves causes great problems in practice. The screening machine must be stopped and cleaned. Through a variety of technical innovations has been tried in the past to master this problem. For example, the stars were provided with nubs or platelets which are intended to strip off the material during the rotational movement. The mode of action of such devices is very limited and the wear is high. The resulting repairs and the associated downtime of the screen cause high costs and lost time.
  • the object of the invention is therefore to provide a cleaning facility for such screening machines, which is simpler, no longer pollute so often and in particular have a high degree of self-cleaning.
  • the invention is based on the prior art described above and proposes a sieving star, in particular for a screening machine, wherein the sieve is substantially disc-shaped and can be arranged on a shaft, wherein provided starting from the center of the sieve at least two outwardly extending Stemenfinger and the sieving stars are characterized in that the length of each of the stem fingers is different or that the length of two opposing star fingers is the same.
  • the invention simultaneously comprises several solutions. For example, it is sufficient if a single Stemenfinger the Siebstems one of the other Stemenfingem different length relative to the center of the Siebstemes has. However, it is also possible that, for example, two Stemenfinger have the same length and all other Stemenfinger deviate from this length, that is formed shorter.
  • an advantageous development of the invention is characterized in that based on the center of the sieve stitch and the outer periphery of the circle of the Stemenfinger the sieve is formed asymmetrically.
  • Fig. 1 the description of the embodiments, this is very clear. There is, so to speak, schematically drawn the circle of the longest Siebstemes. This makes it clear that all other Siebsteme are shorter, creating an asymmetrical design of the Siebstemes based on the center.
  • the invention also includes a solution according to a further aspect, according to which the outer circumference of the screen is provided on the circle of the Stemenfinger elliptical.
  • two substantially opposite Stemenfinger are the same length and the other shorter.
  • this is configured in the form of an ellipse relative to the circle of the Stemenfinger, although also creates a certain swinging on the outer diameter of the Stemenfinger the screening machine in its intended use. Due to the elliptical arrangement, however, this effect is somewhat mitigated, so that an unwanted swinging up of the entire screen no longer occurs here.
  • the sieve is characterized by a different length of each of the Stemfinger. Again, the cleaning effect that is achieved with it is excellent.
  • the same occurs in the next embodiment of the solution according to the invention, according to which two opposite star fingers have the same length.
  • This embodiment also clearly serves to improve the cleaning effect, which is caused by the sieve movement itself, namely the rotational movement of the stars. It does not matter whether the two opposite waves perform a same direction of rotation or an opposite direction.
  • the invention also includes a sieve, as previously described, characterized by an even number of stem fingers.
  • a sieve as previously described, characterized by an even number of stem fingers.
  • it is well intended to provide six stem fingers or twelve stem fingers for the sieve.
  • the invention also includes a solution characterized by an odd number of stem fins.
  • the Stemenfinger are provided as rod-shaped or triangular or trapezoidal tips, teeth, noses, hooks or the like.
  • the invention is not limited to a specific form here. However, an approximately star-shaped configuration or shape has prevailed seen laterally, in which the Stemenfinger are slightly semicircular rounded and preferably, as will be described later, are flattened at their top.
  • the invention is not restricted to even or even an odd number of stem fins. Accordingly, it is also included according to the invention to equip the sievers with seven Stemenfingem, nine Stemenfingem or with twelve Stemenfingem.
  • a preferred embodiment of the invention is characterized in that the Stemenfinger have at their outer ends flattening or flattening. These flattening or flattening serve to avoid jamming, for example by trapping foreign bodies. Also, the wear is minimized by a flattened design of the Stemenfingers at the outer end.
  • At least one of the Stemenfinger has at its tip or on the flattening an approach.
  • This approach is designed for example as nose, as a tip, as a pin, as an increase or the like.
  • this approach preferably does not fill the entire area of the flattening but only a portion, so this approach actually serves to further enhance the cleaning effect.
  • a further variant of the invention provides that two lugs are arranged on approximately opposite, preferably the longest Stemenfingem. This is quite sufficient, since the approaches remain relatively ineffective on somewhat shorter stem fins. However, this does not exclude that they are also provided there to loosen possibly fixed material, which can then be transported by the longest star finger with his approach from the space between two Siebstemen out.
  • the invention comprises both an embodiment in which the sieve star is shaped, as it were, from a piece of material, as well as a configuration in which the stem fingers extend outward from a flange provided in the interior of the sieve stem.
  • the sieve with the flange and the Stemenfingem also be provided integrally. It is also possible to form the Stemenfinger on the flange or fasten.
  • the invention further proposes that an opening is provided in the previously described flange, which serves for fastening the sieve stem on a shaft or the like.
  • This opening is adapted to the shape of the shaft and can therefore be round, oval, triangular, square, rectangular, hexagonal or polygonal.
  • the opening in the flange of the screen is made according to and corresponding thereto.
  • the opening for receiving a formed as a form of shaft shaft is formed in a corresponding manner to positively and / or positively receive the particular formed as a hollow shaft form shaft.
  • Such shaped waves as hollow shafts in particular designed in the manner of a hexagon, are known for special purposes and therefore also serve in an excellent manner to receive sieves according to the invention.
  • the opening is arranged offset or twisted relative to one of the stem fingers, for example the longest stem finger, in particular to allow an offset of the stem fingers by an angle of 15 ° to 90 °, preferably by 30 °.
  • This makes it possible to arrange the Stemenfinger relative to the longest Stemenfinger example, to arrange in a kind of spiral on the shaft.
  • This has the further advantage that the cleaning effect is further improved and in particular is caused by the fact that a swinging up of the entire screening device is completely avoided by this design of Siebsteme on the shaft, because it causes a certain mass balance.
  • the sieve or the Stemenfinger are at least partially formed of a rubber-like or elastic material. It has proven to be advantageous to select the material that it to the conditions of each product to be screened is adjusted. For example, it has proven to be extremely effective on compost soil to use a softer rubber material than was previously the case. However, this does not exclude that even harder material, for example, in the screening of gravel is used.
  • the previously described embodiments of the solution according to the invention of the sieve stem can also be used for all other materials which are suitable for the production of a sieve star.
  • a further advantageous embodiment of the invention is characterized in that the sieve in its center at least one reinforcement of a stable material, such. As metal, fiber reinforced plastic or similar solid material. At this stable material, for example, on the flange, then the Stemenfinger be attached. This has the advantage that the wear which could occur due to the transmission of force, for example on the shaft, if a material which is not strong enough there would be used, is avoided.
  • a stable material such as metal, fiber reinforced plastic or similar solid material.
  • a variant of the invention is also characterized in that the further described by the flange of Siebstems is formed of metal and the Stemenfinger on this flange on or vulcanized and / or sprayed, sprayed and / or up or are molded.
  • the Stemenfinger can be made of softer material, such as rubber, which positively affects the screening effect for certain products in any case.
  • At least one, preferably oblong hole-shaped cleaning bore is provided in the flange. This makes it possible that certain material particles, which can not escape from the space between the individual Siebstemen, can then be removed through this cleaning hole. Furthermore caused by the offset of the individual Siebsteme on the shaft and the cleaning holes an additional cleaning effect, so that it is possible by this measure, almost completely avoid blockages.
  • Another aspect of the solution according to the invention is characterized in that at least on one of the thickness-forming sides of the flattenings a bevel is provided which breaks the edge of the flattening to the thickness of the star finger forming side.
  • This measure also serves, on the one hand, to reduce wear and, on the other hand, also to further improve the cleaning effect, since it is possible by means of this chamfer to further improve the cleaning effect.
  • the thickness or thickness of the flange corresponds approximately to the thickness of the Stemenfingers. If necessary, it is sufficient to provide an intermediate space, which makes it possible to move the stamen fingers past the flange, which is in the range of 1/10 mm to a maximum of 1 mm.
  • the invention also relates to a screening machine, in particular Stemsiebmaschine, consisting of a plurality of juxtaposed in rows in a plane, rotatably mounted on shafts, axles or the like, intertwining Siebstemen with a Siebstem, as previously described.
  • a screening machine in particular Stemsiebmaschine, consisting of a plurality of juxtaposed in rows in a plane, rotatably mounted on shafts, axles or the like, intertwining Siebstemen with a Siebstem, as previously described.
  • the stars intermesh with each other in such a way that the stem tips engage the sieves arranged on a first shaft in the spaces between the sieves of a second shaft. This greatly increases the cleaning effect and in particular the screening effect.
  • the distance between the waves to each other or the distance between the tips of the tips of the flasks of the sieves determines the particle size of the screened material.
  • the waves on which the screen elements are arranged are designed to be
  • the waves are formed as shaped waves, which in particular have six trapezoidal segments on their outer sides, between which extend semicircular or semi-circular recesses.
  • shape waves which are designed in particular as a hollow body, are characterized by a low weight and are also extremely stable and provide a very favorable power transmission from the shaft to the sieve. It is also advantageous if the corrugation formed as waves on its inner side also have trapezoidal shaft sections.
  • the screening machine is characterized in that the screening stars provided on a shaft are arranged rotated against one another on the shaft, so that due to the offset, a spiral-shaped screening wave is produced. Two such arranged waves are then advantageously employed against each other so that the longest Siebsteme or Stemenfinger still just pass past the flange of the Siebstemes with sufficient distance from each other.
  • a development of the invention is characterized in that at least two shafts are spaced from each other such that each of the longest Stemenfinger of the flange or approach at a small distance between 0.5 mm to 3.0 mm during the rotational movement, in particular during a Turn can pass by.
  • the invention is also characterized in that the at least two waves can be driven at different speeds. For this purpose, it may be necessary to provide appropriate gear and / or drives on the screening machine. It does not matter whether the individual shafts are driven by a prime mover and the individual shafts are subdivided differently by means of one or more transmissions, or whether each individual shaft is provided with a single drive which effects the rotational movement, it is possible according to the invention to use different ones To transmit speeds to the individual waves that carry the screen stars.
  • the Fig. 1 shows a first embodiment of a screen star I according to the invention.
  • the Stemenfinger are designated by the reference numerals 1 to 9 in this embodiment.
  • the Stemenfinger 1 to 9 have different lengths. This is indicated by the reference symbols I 1 , I 5 and I 7 and the corresponding double arrows.
  • the length is measured starting from a center Z of the sieve stem.
  • an opening 13 is provided, which is formed in this embodiment substantially square.
  • the square configuration is intended to equip, for example, a square shaft with a plurality of screen stars I, which are then arranged side by side in the longitudinal extension of the shaft.
  • a flange 16 designated here merely with a line is provided for this purpose.
  • This flange 16 has, as will be seen in later figures, a certain strength, in particular such a thickness, which corresponds to the thickness of the Stemenfinger 1 to 9, thus a mutually interlocking arrangement of screen stars I on two waves, which are arranged spaced from each other, is possible.
  • the Siebstem carries schematically only the reference I, which is an arrow to the right of the illustration in Fig. 1 is meant.
  • the reference character K designates the outer circumference of the longest stylus finger 1. It is clearly evident from the circle circumference K, which is chosen only for illustration, that the individual stem fingers 1 to 9 have a different length.
  • the individual Stemenfinger 1 to 9 also have a flattening 15, which is preferably rounded or chamfered at their corners. This flattening serves, as further described above, to reduce wear and in particular to improve the cleaning effect.
  • the Fig. 2 shows a second embodiment of the invention Siebstemes I.
  • Fig. 1 There are two essentially opposite Stemenfinger 1 and 7, which have the same length.
  • the other Stemenfinger are in contrast shortened again, so that seen in the outer circumference no circle, as shown, but an ellipse is formed. It is therefore the elliptical design of the sieve stitch according to the invention. All other reference numerals will be reused in the same way.
  • a projection 14 is provided on the stem finger 1 and a projection 17 on the star finger 7. This is located on the flattening 15 and is located outside the circumference K of the longest Stemenfinger 1 or 7.
  • the flange 16 has in this embodiment, cleaning holes 18 which are formed slot-like. These cleaning holes 18 allow an improvement in the cleaning effect, because it succeeds to dissipate any adhering material through these holes still. These can only be extremely small particles that normally otherwise accumulate the flange or in the interstices of Stemenfinger could lead to a clogging of the screen. In the prior art, this was often the case, which is substantially avoided by the configuration, as it is now chosen according to the invention.
  • the opening 13 is in the embodiment of Fig. 2 chosen circular, so that this sieve is placed on a round shaft. This can also be done, for example, in the form of tongue and groove joints or by shrinking in order to achieve optimum power transmission from the shaft, not shown, to the screen.
  • the Fig. 3 also shows an elliptical configuration analogous to Fig. 2 However, this variant differs by a turn square opening 13. All other reference numerals are reused in the same way.
  • the Fig. 4 shows a three-dimensional representation of the Siebstemes, as in the preceding Figures 2 and 3 already presented.
  • the Siebstem I has on both sides a flange 16, which substantially corresponds to the thickness or thickness of the Stemenfinger 1 to 12.
  • the opening 13 is in turn here square provided with slight rounding or flattening at the corners.
  • the illustration is also the elliptical design, which, however, compared to Fig. 5 , which is shown below, makes it visible that it is possible, the opening 13, with respect to the first Stemfinger 1, to be arranged offset or rotated.
  • helical arrangement of the strainer I is made possible on the shaft not shown here.
  • the Fig. 5 is also the chamfer 15/1 recognizable on the sides of the flattening 15, which ultimately break the edge to the thickness or depth of the Stemenfinger and thus provide a reduction in wear and / or an improvement in the screening effect.
  • a further embodiment is shown, which ultimately differs only by the execution of the flange of the previously described variants.
  • the flange 16 is circular in this embodiment, wherein the opening 13 is formed for receiving a mold shaft, not shown. It is indicated that in the flange corresponding to trapezoidal shaped shaft sections the wave, not shown, also trapezoidal shaped elevations 20/1 are provided.
  • Fig. 7 shows the side view of such a shaped shaft, which is designed as a hollow body and in particular has six trapezoidal segments 22 on its outer side. These trapezoidal segments 22 are located between semicircular or semi-circular recesses 23 on the outside. On the inside of the already mentioned trapezoidal wave sections 20 are provided, which extend between recesses 24, which are also formed substantially trapezoidal.
  • the Fig. 8 shows a three-dimensional representation of in Fig. 6 already presented variant of the invention Stemenfingers from a different perspective.
  • the Fig. 9 finally shows schematically the embodiment of a screening machine, in particular Stemsiebmaschine with a Siebstem I according to the invention.
  • Shown only schematically are two waves 21/1 and 21/2, the Siebsteme carry I. Due to the staggered arrangement of Siebsteme I on the waves 21/1 and 21/2 results in a spiral arrangement, which is clear by the name of the longest Stemenfinger 1. These are arranged substantially offset by a certain angle on the shaft, which is why the already mentioned several times, advantageous embodiment of the arrangement of the strainer I results according to the invention.
  • the waves 21/1 and 21/2 can be stored so that they are variable in their distance from each other according to the respective goods to be screened.
  • the screening machine has corresponding drive units and / or transmission elements, such as gear or the like.
  • a Stemsiebmaschine according to the invention has a plurality of the waves shown in an opening forming the screen surface.

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Claims (15)

  1. Etoile de criblage, en particulier destinée à une machine de criblage, d'une forme semblable à un disque, pouvant être fixée sur un arbre rotatif et possédant au moins deux branches de l'étoile (1, .... 12) pointant à partir du centre (Z) de l'étoile vers l'extérieur avec des longueurs de ces branches (1, ....12) différentes, caractérisée en ce que les longueurs (I) de deux branches de l'étoile (1, .... 12) se faisant face sont identiques.
  2. Etoile de criblage, en particulier destinée à une machine de criblage, d'une forme semblable à un disque, pouvant être fixée sur un arbre rotatif et possédant, à partir du centre (Z) de l'étoile, au moins deux branches de l'étoile (1, .... 12) pointant vers l'extérieur avec des longueurs de ces branches (1, ....12) différentes, caractérisée en ce que les longueurs (I) de deux branches de l'étoile (1, .... 12) se faisant face sont différentes.
  3. Etoile de criblage selon les revendications 1 ou 2, caractérisée en ce que l'étoile de criblage (I) est non-symétrique et en particulier produite selon une forme ellipsoïde par rapport au centre (Z) de l'étoile de criblage (I) et à la ligne de coupe décrite par l'extrémité des branches de l'étoile.
  4. Etoile de criblage selon une des revendications précédentes, caractérisée par un nombre pair de branches de l'étoile (1, ....12) ou par un nombre impair des branches de l'étoile (1, ....11) et en particulier sept, neuf ou douze branches de l'étoile (1, ....12).
  5. Etoile de criblage selon une des revendications précédentes, caractérisée en ce que les branches de l'étoile (1, ....12) sont configurées comme des pointes en forme de tiges ou de formes triangulaires ou trapézoïdes, ou des dents, des nez, des crochets ou des formes similaires.
  6. Etoile de criblage selon une des revendications précédentes, caractérisée en ce que les branches de l'étoile (1, ....12) possèdent à leurs extrémités des zones aplaties et/ou en ce qu'au moins une des branches de l'étoile (1, ....12) comporte à sa pointe ou au niveau de sa partie plate (15) un bord (14, 17) et en ce que ce bord (14) est configuré de préférence comme un nez, une pointe, un tenon, une excroissance ou une forme similaire et/ou en ce que deux bords (14) existent sur des branches de l'étoile en opposition et de préférence sur les branches de l'étoile (1, 7) les plus longues.
  7. Etoile de criblage selon une des revendications précédentes, caractérisée en ce que les branches de l'étoile (1, ....12) s'étendent d'une bride (16) prévue à l'intérieur (I) de l'étoile de criblage vers l'extérieur avec la bride (16) située de préférence des deux côtés des branches de l'étoile (1, ....12) et/ou en ce qu'une ouverture (13) est prévue dans la bride (16) servant à la fixation de l'étoile de criblage (I) sur un arbre de rotation (21/1, 21/2) ou sur un élément similaire.
  8. Etoile de criblage selon une des revendications précédentes, caractérisé en ce que l'ouverture (13) dans la bride (16) possède une forme ronde, ovale, triangulaire, carré, rectangulaire, hexagonale ou polygonale ou en ce que l'ouverture (13) est configurée avec une forme destinée à la réception d'un arbre de rotation à une forme correspondante (21/1, 21/2) et en particulier comme un arbre de rotation creux permettant de recevoir l'arbre de rotation à une forme spécifique afin de permettre une transmission de force par friction et/ou par la forme ou en ce que l'ouverture (13) est déplacée ou tournée par rapport à une des branches (1, ....12) de l'étoile et en particulier afin de permettre un décalage des branches de l'étoile (1, ....12) d'un angle allant de 15 à 90 degrés et de préférence de 30 degrés ou en ce que l'étoile de criblage (I) ou les branches d'étoile (1, ....12) consistent au moins partiellement en caoutchouc ou en un autre matériau élastique et/ou en ce que l'étoile de criblage (I) comporte au niveau de son centre un renforcement en un matériau rigide tel du métal, du plastique renforcé de fibres ou d'un matériau similaire.
  9. Etoile de criblage selon une des revendications précédentes, caractérisée en ce qu'une bride est prévue et en ce que la bride (16) est en métal et les branches d'étoile (1, ....12) sont vulcanisées au niveau de cette bride ou sur cette bride ou vaporisées, pulvérisées ou coulées et/ou en ce qu'un perçage de nettoyage (18) de préférence allongé est prévu au niveau de la bride (16).
  10. Etoile de criblage selon une de revendications précédentes, caractérisée en ce qu'un biais (15/1) est prévu au niveau des bords latéraux de la partie aplatie (15) ayant une épaisseur (d) coupant le bord de la partie aplatie (15) du côté ayant une épaisseur (d) de la partie d'une branche d'étoile (1, ....12) et/ou en ce que l'épaisseur ou la grosseur de la bride (16) corresponde approximativement à l'épaisseur (d) des branches d'étoile (1, ....12).
  11. Machine de criblage, en particulier machine de criblage à étoiles consistant en une multitude d'étoiles de criblages (I) interagissant et mobiles sur des axes de rotation, situées sur plusieurs lignes dans un même plan sur des arbres rotatifs (21/1, 21/2), des axes ou des éléments similaires selon une des revendications précédentes.
  12. Machine de criblage selon la revendication 11, caractérisée en ce que les étoiles de criblage (I) sont décalées l'une par rapport à l'autre de façon à ce que les pointes des étoiles (1, ....12) des cribles à étoile (I) situées sur un premier arbre de rotation (21/1) rentrent dans les espaces (26) situés entre les étoiles de criblage d'un deuxième arbre de rotation (21/2) et/ou en ce qu'il est possible de fixer et en particulier d'ajuster des distances différentes entre les arbres de rotation (21/1, 21/2).
  13. Machine de criblage selon une des revendications précédentes 11 à 12, caractérisée en ce que les arbres de rotation (21/1, 21/2) sont configurés avec une forme spécifique possédant à leurs périphéries en particulier six segments trapézoïdales (22) entre lesquels s'étendent des évidements (23) en demi-cercle ou de forme demi-ronde et en ce qu'en particulier les arbres de rotation (21/1, 21/2) de forme spécifique possèdent à l'intérieur des segments d'arbre trapézoïdales (20).
  14. Machine de criblage selon une des revendications précédentes, caractérisée en ce que les étoiles de criblage (I) situées sur un arbre de rotation (21/1) sont fixées en position décalée l'une par rapport à l'autre sur l'arbre de rotation (21/1) afin de créer grâce à ce décalage un arbre de rotation à étoiles de criblage en forme de spirale et/ou en ce qu'au moins deux arbres de rotation (21/1, 21/2) sont situés à une distance l'un de l'autre de façon à ce que la branche la plus longue (1) peut passer lors de la rotation à une faible distance allant de 0,5 à 3 mm par rapport à la bride (16).
  15. Machine de criblage selon une des revendications 11 à 14, caractérisée en ce qu'au moins deux arbres (21/1, 21/2) peuvent être commandés à des vitesses de rotation différentes et en ce que de préférence des directions de rotation identiques ou opposées de deux arbres de rotation au moins (21/1, 21/2) sont prévues.
EP09812483.7A 2008-12-22 2009-12-03 Étoile de criblage destinée notamment à un crible à étoiles Not-in-force EP2361159B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09812483T PL2361159T3 (pl) 2008-12-22 2009-12-03 Gwiazda sitowa, zwłaszcza dla przesiewacza gwiazdowego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008016913U DE202008016913U1 (de) 2008-12-22 2008-12-22 Siebstern, insbesondere für eine Sternsiebmaschine
PCT/EP2009/008634 WO2010072317A2 (fr) 2008-12-22 2009-12-03 Étoile de criblage destinée notamment à un crible à étoiles

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EP2361159A2 EP2361159A2 (fr) 2011-08-31
EP2361159B1 true EP2361159B1 (fr) 2015-07-01

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US (1) US8827083B2 (fr)
EP (1) EP2361159B1 (fr)
CA (1) CA2748288C (fr)
DE (1) DE202008016913U1 (fr)
PL (1) PL2361159T3 (fr)
WO (1) WO2010072317A2 (fr)

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DE102010027665B4 (de) * 2010-07-19 2014-08-07 J. Willibald Gmbh Siebwalzen für eine Siebeinheit zum Sieben von verrottungsfähigem Material
DE102010037073B8 (de) 2010-08-19 2013-09-26 Günther Holding GmbH & Co. KG Siebelement für eine Scheibensiebvorrichtung
BR112014003785B1 (pt) * 2011-08-22 2020-09-08 Schenck Process Australia Pty Ltd Painel modular de peneiramento
DE202011108467U1 (de) * 2011-11-30 2013-03-01 Doppstadt Familienholding Gmbh Siebstern, insbesondere für eine Sternsiebmaschine
EP2998033B1 (fr) * 2014-09-22 2022-05-25 Bollegraaf Patents and Brands B.V. Arbre pour rotor de convoyeur à crible en étoile rotatif et rotor de convoyeur à crible en étoile rotatif comprenant de tels arbres
CA3094168A1 (fr) 2018-03-23 2019-09-26 Lanxess Solutions Us Inc. Disque de tri et procede d'amelioration de la durabilite de celui-ci
CN108971001A (zh) * 2018-09-05 2018-12-11 太仓金马智能装备有限公司 一种星型筛
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DE19643589A1 (de) * 1996-10-22 1998-04-30 Albert Zubraegel Maschinenbau Verfahren und Vorrichtung zur Bestimmung des Liefervolumens einer Partie in Form von Schüttgut vorliegender Bodenhilfsstoffe und Kultursubstrate
DE19903249A1 (de) * 1999-01-28 2000-08-03 Krupp Foerdertechnik Gmbh Scheibenrost
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DE10065403A1 (de) * 2000-12-27 2002-07-18 August Mueller Kg Maschinenfab Fingerrollenrost-Siebvorrichtung
DE10352796A1 (de) 2003-11-12 2005-06-23 Backers Maschinenbau Gmbh Siebaggregat und Siebstern
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DE202008016913U1 (de) * 2008-12-22 2010-05-20 Doppstadt Familienholding Gmbh Siebstern, insbesondere für eine Sternsiebmaschine

Also Published As

Publication number Publication date
WO2010072317A2 (fr) 2010-07-01
DE202008016913U1 (de) 2010-05-20
WO2010072317A3 (fr) 2010-08-19
US20110303587A1 (en) 2011-12-15
PL2361159T3 (pl) 2015-10-30
US8827083B2 (en) 2014-09-09
CA2748288C (fr) 2017-06-27
EP2361159A2 (fr) 2011-08-31
CA2748288A1 (fr) 2010-07-01

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