EP1694443B1 - Procede pour fixer un element de filtration dans une machine a tamis vibrant et tamis vibrant pour centrales de melange d'asphalte - Google Patents

Procede pour fixer un element de filtration dans une machine a tamis vibrant et tamis vibrant pour centrales de melange d'asphalte Download PDF

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Publication number
EP1694443B1
EP1694443B1 EP03778655A EP03778655A EP1694443B1 EP 1694443 B1 EP1694443 B1 EP 1694443B1 EP 03778655 A EP03778655 A EP 03778655A EP 03778655 A EP03778655 A EP 03778655A EP 1694443 B1 EP1694443 B1 EP 1694443B1
Authority
EP
European Patent Office
Prior art keywords
fixing strip
tensioning
shape
machine body
coupling means
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
EP03778655A
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German (de)
English (en)
Other versions
EP1694443A1 (fr
Inventor
Michel Allemann
Bernhard Hasler
Hans Roth
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.)
Ammann Schweiz AG
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Ammann Schweiz AG
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Publication date
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Publication of EP1694443A1 publication Critical patent/EP1694443A1/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
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/48—Stretching devices for screens
    • 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
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • 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
    • B07B1/48—Stretching devices for screens
    • B07B1/49—Stretching devices for screens stretching more than one screen or screen section by the same or different stretching means

Definitions

  • the invention relates to a method for fastening a sieve insert in the machine body of a vibration sieving machine for asphalt plants, a vibrating sieve machine for asphalt mixing plants and a machine body, a clamping bar and a sieve insert for such a vibrating sieve according to the preambles of the independent claims.
  • Vibration screening machines are used in asphalt mixing plants mainly for classifying split or gravel and are located there directly above the hot mineral silo, so that during operation typically temperatures of several hundred degrees Celsius prevail in the screening machine.
  • Wire meshes are therefore almost exclusively used as sieve inserts, which are stretched in the longitudinal direction and placed in the side regions on upwardly curved support flanges in order to obtain the necessary dimensional stability.
  • screening machines with today usual lengths of 5 m to 6 m per screen deck two sieve inserts are arranged one behind the other, which hung in the central region of the machine body in a mounting groove on a center tension bar and at its opposite end in the inlet side or the outlet side of the screening machine with clamping elements be put under tension.
  • the mounting groove is in the center tension bar with screenings and fine material, which is solidified by the vibrations and removed for replacement of a defective sieve insert in elaborate manual work must be before the screen insert can be unhooked from the groove. Since the distances between the sieve decks are often only a few decimeters, it is usually not possible to get between the sieve decks to the affected center tension bar or to work there, so that it is necessary to disassemble any located above the sieve insert to be exchanged sieve inserts. This is associated with a huge amount of time and causes corresponding costs.
  • US 4 137 157 shows a similar Schwingsiebmaschine as described above, in which a sealing strip is inserted into the mounting groove, so that they can not enforce with screenings and fine material. For replacement of a screen deck, however, it is necessary to remove the sealing strip from the interior of the vibrating screen, which leads to similar problems as stated above.
  • US 3,608,720 shows a Schwingsiebmaschine with two successively arranged sieve inserts, which are secured by embracing provided by clamping bars mounting edges in the machine body.
  • the clamping bars are rotatable after loosening a hold-down assembly from the interior about an axis transverse to the machine direction, such that the embrace of the fastening edges is canceled.
  • This design also leads to the previously described problems when replacing a screen deck.
  • a first aspect of the invention relates to a method for fastening a sieve insert to a clamping bar, which, seen in the longitudinal direction, is installed transversely to the longitudinal axis in the machine body of a vibratory screening machine for asphalt mixing plants.
  • a strainer insert which is preferably formed from a wire mesh and is equipped at least one of its boundary edges or ends with a fastening strip, arranged in the machine body of Vibrationssiebmaschine such that the fastening strip is in the immediate vicinity of the clamping bar, attached to the sieve insert shall be.
  • In the immediate vicinity means that the mounting bar is brought into contact with the clamping bar or only a few millimeters or centimeters away from this.
  • the coupling means by engaging with respect to the machine body movable and preferably also removable coupling means in undercuts, passages and / or openings in the mounting strip a positive connection between the clamping bar and the mounting strip both in Siebspannides and in both directions generated perpendicular thereto, the coupling means from outside the machine from a non-coupling position to a coupling position, in which it the aforementioned Cause positive fit, be moved.
  • the moving of the coupling means thus takes place on the outside of the machine body, for example via outside of the machine body mounted actuating lever or actuating spindles or on the coupling means associated peel or Einschiebevorraumen.
  • Such a method for fastening a strainer insert has the advantage over the prior art that fastening solutions can be realized, which are easily detachable from the outside by a renewed movement of the coupling means from the coupling position into the non-coupling position.
  • fastening solutions can be realized, which are easily detachable from the outside by a renewed movement of the coupling means from the coupling position into the non-coupling position.
  • a significant reduction in the time and cost required for the change of sieve inserts can be achieved and the maintenance comfort and reliability significantly improved.
  • the coupling means after moving to the coupling position in this position, are provided with releasable securing means, e.g. Fittings, split pins, lock plates, caulking or fuse welding points, secured so that the coupling means can not move unintentionally in the non-coupling position during operation.
  • releasable securing means e.g. Fittings, split pins, lock plates, caulking or fuse welding points
  • the sieve insert is arranged in the machine body of the vibrating sieve machine in such a way that the fastening strip is already in its intended fastening position when the coupling means are engaged so that the force required to move the coupling means is minimal.
  • a second aspect of the invention relates to a vibration screening machine for asphalt mixing plants, which is preferably produced or producible using the process according to the first aspect.
  • the vibrating sieve machine comprises a machine body with at least one clamping bar which extends in a central region of the machine body with respect to its longitudinal extent extends transversely to its longitudinal axis. Securely secured to the clamping bar is at least one provided with a fastening strip end of a preferably formed of a wire mesh strainer.
  • the positive engagement which is present transversely thereto both in the wire tensioning direction and in both directions, is caused by engagement of coupling means on the fastening strip, which optionally after removal or neutralization of securing means, such as cotter pins or safety welding points, so movable and preferably also removable are that the positive connection between clamping bar and fixing strip is canceled.
  • securing means such as cotter pins or safety welding points
  • the movement of the coupling means is possible from the outside on the machine body, for example by means of operating levers or actuating spindles mounted on the outside of the machine body or by means of pull-off or insertion devices associated with the coupling means.
  • this can significantly reduce the time and cost required for changing a single sieve insert and significantly improve maintenance comfort and operational reliability.
  • the fastening strip is or will be fastened to the clamping bar in such a way that a positive connection between the fastening strip and the clamping bar will also be present in a direction opposite to that of the straining direction.
  • the coupling means are either engaged or attacked substantially over the entire extent of the fastening strip, which entails the advantage of a uniform force introduction into the fastening strip, or that the coupling means are engaged or engaged at a plurality of portions preferably distributed uniformly along the fastening strip, which has the advantage that closed profile contours can be used at least over sections, which allow a particularly stable connection.
  • the coupling means are moved relative to the clamping bar for engaging in the fastening strip or are movable relative to the clamping bar, for which they are formed separately from the clamping bar and preferably also removable.
  • they are moved in a direction transverse to the longitudinal axis of the vibrating screen or in the direction of the longitudinal extent of the clamping bar or are movable in this direction, so that moving the coupling means by moving or pushing or pulling the same from a position laterally adjacent to the machine becomes possible.
  • the movement takes place or is possible substantially over the entire extent of the fastening strip, which is useful, for example, if the coupling means can be removed from a removable by lateral pulling out or by appropriate insertion again coupling profile strip be formed, or that the movement is carried out or possible only over a portion of the extension of the fastening strip, which is useful, for example when designed as a locking slide coupling means and also has the advantage that the space requirement is relatively small laterally adjacent to the Vibrationssiebmaschine.
  • the clamping bar when moving the coupling means at the same time the clamping bar is moved or the coupling means are firmly connected to the clamping bar and preferably even formed integrally therewith.
  • To move the coupling means of the clamping bar is preferably rotated about an axis transverse to the machine longitudinal axis or displaced in the direction of the longitudinal axis or is rotatable about such an axis or slidably formed in the machine longitudinal direction. This makes it possible to achieve a particularly simple coupling of the coupling means to the fastening strip or an easily and quickly detachable connection between clamping bars and fastening strip.
  • the vibrating sieve according to the second aspect of the invention in the central region of the longitudinal extent of its machine body on several clamping bars, which are arranged in different superimposed planes transverse to the machine longitudinal direction and serve the attachment of strainer inserts for different screening decks. At least a portion of these clamping bars are attached, preferably on opposite sides of the clamping bar, in each case two sieve inserts with opposite Siebspanncardien in the inventive manner, whereby the two sieve inserts are connected to a continuous sieve deck.
  • the clamping bar and the fastening strip are designed such that penetrate along the extension of the fastening strip body of the fastening strip and the clamping bar or penetrate physicalities of the fastening strip in the clamping bar or vice versa and positively within the penetration or penetration of the coupling means are connected together in Siebspannraum.
  • the penetration or penetration takes place at regular intervals along the fastening strip.
  • a third aspect of the invention relates to a machine body for a vibrating sieve according to the second aspect of the invention, which has one or preferably a plurality of clamping bars in its central region.
  • the clamping bars have at least one of their outer edges spaced apart from each other a plurality of tubular elements with a common central axis or more preferably slot-shaped openings, or are rotatably mounted about an axis transverse to the longitudinal axis of the machine body or displaceable in the direction of this longitudinal axis on the machine body.
  • a fourth aspect of the invention relates to a clamping beam for a vibrating screening machine according to the second aspect of the invention or to a machine body according to the third aspect of the invention.
  • the clamping bar points along at least one of its outer edges, Preferably, along two opposite outer edges, spaced apart from each other a plurality of tube-section-shaped elements having a common axis or a plurality of preferably slot-like openings.
  • a fifth aspect of the invention relates to a sieve insert for a vibrating sieve according to the second aspect of the invention.
  • the sieve insert has a fastening strip which, spaced along its outer edge, has a plurality of tube-section-shaped elements with a common axis or a plurality of projections with undercuts, on which the sieve insert can be held in a form-locking manner in the sieve clamping direction.
  • the sieve inserts used are preferably formed from a wire mesh, it is nevertheless also envisaged to apply the fastening method according to the invention to sieve inserts which are formed from other preferably heat-resistant fabrics with sieve openings, such as perforated sheets.
  • FIGS. 2 to 7 Before preferred ways of carrying out the invention with reference to the FIGS. 2 to 7 will be described in advance in the FIGS. 1a to 1d Prior art discussed in order to facilitate a better understanding of the invention.
  • FIG. 1a shows a vertical section in the longitudinal direction through the machine body 3 of a vibrating sieve machine 5, as used today in asphalt mixing plants, arranged on the hot mineral silo used.
  • sieve inserts 1 are arranged one above the other and one behind the other in the machine body 3 such that they form six superposed sieve decks within the machine body 3, the mesh width of which decreases from top to bottom.
  • the individual sieve inserts 1 each screen decks are in the central region of the machine body 3 each attached to a clamping bar 2 (also called center clamping bar) and clamped in the region of the inlet side 6 and the outlet side 7 of the vibrating sieve 5 by means acting against disk spring packets or coil springs each bolt against a crossbar 8.
  • a clamping bar 2 also called center clamping bar
  • the unbalance exciters 9 Arranged on the machine body 3 are the unbalance exciters 9 which, during operation, set the machine body 3 mounted on spring elements (not shown) in vibration.
  • Fig. 1b which is a section along the line AA in Fig. 1a and thus shows a top view of the third screen deck seen from above, the two sieve inserts 1a, 1b of the screen deck are tightly connected to each other via the clamping bar 2, such that the material located on this screen deck exclusively through the mesh of the sieve inserts 1a, 1b on The underlying sieve deck can reach, if it is fine enough, and otherwise on this sieve deck in the material flow direction M is conveyed to the outlet side 7.
  • the sieve inserts 1a, 1b are formed from a wire mesh 10 which each turn over at its fastening end with a sheet metal strip 11 and together with this by approx 170 ° is folded, whereby at the ends of the wire mesh 10 fixing strips 4 are formed.
  • These fastening strips 4 are suspended in a groove 12 which is undercut on both sides in the clamping beam 2 designed as a welded construction and are thereby connected in a form-fitting manner to the tensioning beam 2 in the wire tensioning direction S of the respective screening insert 1a, 1b and in both directions.
  • the groove 12 is to allow for hanging the fastening strips 4 of the sieve inserts 1 a, 1 b so wide that it is open at installed and properly strained sieve inserts 1 a, 1 b to the top of the screen deck, with the result that it fills up with material which is solidified with time and then unmounting the fixing strips without prior mechanical cleaning of the groove 12 impossible.
  • the replacement of a sieve insert 1a, 1b in these machines known today to a time and cost-intensive matter are examples of the replacement of a sieve insert 1a, 1b in these machines known today to a time and cost-intensive matter.
  • FIGS. 2a-2c Detailed views of the attachment situation between the sieve inserts 1a, 1b and the clamping bar 2 in a first inventive vibrating sieve, namely Fig. 2a a plan view of a portion of the attachment between the center tension bar 2 and the two strainer 1a, 1b, Fig. 2b a section along the line BB in Fig. 2a and Fig. 2c a section along the line CC in Fig. 2a , As if from a synopsis of FIGS.
  • the clamping bar 2 here consists of a closed rectangular section 13, on whose narrow, opposite outer sides a plurality of equally long, cylindrical tube sections 14 are uniformly spaced from each other welded, such that they have a common axis Y.
  • Fig. 2c also have the fastening strips 4 of the two sieve inserts 1a, 1b at their outer edges several equal length, cylindrical pipe sections 16 which have identical pipe cross-sections as the pipe sections 14 on the clamping bar 2.
  • These pipe sections 16 are per mounting bar 4 spaced from each other and aligned along a common axis Y welded to the outer edge of a fastening strip 4 belonging flat iron profile 15, on which the folded with a metal strip 11 and bent by 180 ° end of the wire mesh 10 of the respective sieve insert 1a, 1b is riveted. It is also intended to use screws instead of rivets or to make the connection by welding or soldering. How farther Fig.
  • FIGS. 3a-3c show detailed views of the attachment situation between the sieve inserts 1a, 1b and the clamping bar 2 in a second inventive vibrating sieve, namely Fig. 3a a plan view of a portion of the attachment between the center tension bar 2 and the two strainer 1a, 1b, Fig. 3b a section along the line DD in Fig. 3a and Fig. 3c a section along the line EE in Fig. 3a , Like from the FIGS. 3a and 3b can be seen, the clamping bar 2 in the present case has an identical structure as in the Figures 2a-2c shown on.
  • the fastening strips 4 of the screen inserts 1a, 1b are formed by the fact that the attachment end of the respective wire mesh Turn 10 with a metal strip 11, then rolled and the rolled part 33 was then provided against unrolling with Sich ceremoniessschweissungen 18, wherein previously provided for rolling recesses at those points where at a fixing to the clamping bar 2, the pipe sections 14 of the clamping bar 2 to come lie.
  • the connection between the pipe sections 14 of the clamping bar 2 and the rolled portions 33 of the fastening strip 4 takes place, as in the embodiment according to the Figures 2a-2c , with a removable coupling rod 17.
  • FIGS. 4a-4c show detailed views of the attachment situation between the sieve inserts 1a, 1b and the Spannbalken.2 in a third inventive vibrating sieve, namely Fig. 4a a plan view of a portion of the attachment between the center tension bar 2 and the two strainer 1a, 1b, Fig. 4b a section along the line FF in Fig. 4a and Fig. 4c a section along the line GG in Fig. 4a , As if from a synopsis of FIGS.
  • the clamping bar 2 here consists of a rotated by 90 °, downwardly open C-profile 19, at its narrow, opposite outer sides a plurality of equally long, slot-like passage openings 20 are mounted in a line evenly spaced from each other.
  • undercut sheet nose 21 are arranged in these openings, which are formed by a metal strip 22 of the mounting strip 4 of the respective sieve insert 1a, 1b, at which the folded of a metal strip 11 and bent by 180 ° end of the wire mesh 10 of the respective Siebein accountss 1a, 1b is riveted. Again, it is intended to use screws instead of rivets or to make the connection by welding or soldering.
  • Fig. 5a shows a vertical section in the longitudinal direction by the attachment of two screen inserts 1a, 1b of a screen deck in the central regions of the machine body in a fourth inventive vibrating screen.
  • each of the two sieve inserts 1a, 1b associated with its own clamping bar 2, on which the respective sieve insert 1a, 1b by gripping a mounting edge 26 of the clamping bar 2 with its mounting bar 4 positively in Siebspannides S and in both directions perpendicular thereto is attached.
  • the mounting strip 4 has in the present case a similar shape and an identical structure as in the Fig. 1c shown fastening strips 4.
  • the two clamping bars 2 can either, as in the FIGS. 5b and 5c is shown by the example of the right clamping bar 2, to be rotated or pivoted about an axis of rotation extending in the direction of its longitudinal extension, wherein this axis of rotation is preferably arranged in the vicinity of the fastening edge 26, or, as in Fig. 5d also shown by the example of the right clamping bar 2, are moved in Siebspannraum S, so that the fastening strip 4 of the respective Siebbelags 1a, 1b is released.
  • the bearing of the clamping bars 2 in the side walls of the machine body 3 can be carried out to enable this movement is known to the person skilled in the art and will therefore not be explained in more detail here.
  • Fig. 6 shows a vertical section in the longitudinal direction by the attachment of two formed from a perforated plate 27 screen inserts 1a, 1b a screen decks on a clamping bar 2 of a fifth inventive vibrating screen.
  • the fastening strips 4 are formed in the present case by 180 ° folding of non-perforated ends of the sheets 27.
  • the clamping bar 2 is formed by a rotated by 90 ° C-profile material, which is open at the bottom and at the free end of each of its two legs horizontally inwardly and.
  • Outwardly projecting flange 29 has on which outside the mounting strips 4 of the sieve inserts 1a, 1b rest.
  • the respective horizontal flange portion 29 and the folded portion of this resting on the mounting strip 4 are surrounded by a C-shaped coupling profile 30 with at the free ends of the profile leg inwardly projecting flange, whereby clamping bar 2 and mounting bar 4 form-fitting both in Siebspannides S and in Both directions are connected to each other perpendicular to the wire tensioning direction.
  • the respective coupling profile 30 is pulled out of the machine body 3 in its longitudinal direction, ie transversely to the wire tensioning direction S.
  • Fig. 7 shows a vertical section in the longitudinal direction by the attachment of two screen inserts 1a, 1b of a screen deck at a central tension bar 2 of a sixth inventive vibrating screen.
  • the clamping bar 2 consists of a double-T-profile, which forms on each of its sides an upwardly and downwardly undercut groove. Directly adjacent to these sides is arranged in each case one belonging to the respective fastening strip 4 fastening profile 31 with a just such groove on which the end of the Drahtgeflechts'10 the respective sieve insert 1a, 1b, as already in the FIGS. 4a to 4c described, is attached.
  • the grooves of the clamping bar 2 and the mounting profile 31 are mirror images of each other and form an enclosed space with an H-shaped cross section in which an H-shaped coupling profile 32 is arranged, which is a positive connection between the clamping bar 2 and the mounting profile 31 both in Siebspannides S as well as in both directions perpendicular to this manufactures.
  • the coupling profile 32 can be pulled out of the H-shaped space in the longitudinal direction.

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  • Combined Means For Separation Of Solids (AREA)
  • Road Paving Machines (AREA)
  • Filtration Of Liquid (AREA)
  • Working-Up Tar And Pitch (AREA)

Claims (22)

  1. Procédé de fixation d'un tissu pour tamis (1, 1a, 1b) sur une barre de serrage (2) dans la zone médiane du bâti de machine (3) d'une machine à tamis vibrant (5) pour des installations de mélange d'asphalte, comprenant les étapes suivantes :
    a) mise à disposition d'un tissu pour tamis (1, 1a, 1b) avec une baguette de fixation (4) disposée côté extrémité sur celui-ci ;
    b) disposition du tissu pour tamis (1, 1a, 1b) dans le bâti de machine (3) de sorte que la baguette de fixation (4) se trouve à proximité immédiate de la barre de serrage (2) ; et ensuite
    c) établissement d'une liaison positive dans le sens de serrage du tamis (S) prévu et dans les deux sens transversalement au sens de serrage du tamis (S) prévu entre la baguette de fixation (4) et la barre de serrage (2) par engrènement sur la baguette de fixation (4) de moyens d'accouplement (17, 23, 26) mobiles et pouvant être retirés en particulier à la suite du mouvement des moyens d'accouplement (17, 23, 26) depuis l'extérieur d'une position de non accouplement à une position d'accouplement.
  2. Procédé selon la revendication 1, comprenant en outre l'étape suivante :
    d) blocage des moyens d'accouplement (17, 23, 26) dans la position d'accouplement avec des moyens de blocage amovibles.
  3. Procédé selon l'une quelconque des revendications précédentes, dans lequel une liaison positive entre la barre de serrage (2) et la baguette de fixation (4) est établie en outre dans un sens opposé au sens de serrage du tamis (S).
  4. Procédé selon l'une quelconque des revendications précédentes, dans lequel le tissu pour tamis (1, 1a, 1b) est disposé de telle sorte que la baguette de fixation (4) se trouve déjà lors de l'engrènement des moyens d'accouplement (17, 23, 26) dans sa position de fixation prévue.
  5. Procédé selon l'une quelconque des revendications précédentes, dans lequel les moyens d'accouplement (17, 23, 26) sont amenés en engagement sur toute la longueur de la baguette de fixation (4) sur celle-ci ou sont amenés en engagement sur plusieurs tronçons espacés les uns des autres, en particulier de même longueur, de la baguette de fixation (4).
  6. Procédé selon l'une quelconque des revendications précédentes, dans lequel les moyens d'accouplement (17, 23, 26) sont déplacés pour l'engrènement sur la baguette de fixation (4) par rapport à la barre de serrage (2) et en particulier dans lequel les moyens d'accouplement (17, 23, 26) sont déplacés ici dans un sens transversalement à l'axe longitudinal (X) du bâti de machine (3).
  7. Procédé selon la revendication 6, dans lequel le déplacement est effectué essentiellement sur toute l'étendue de la baguette de fixation (4) ou juste sur un tronçon de l'étendue de la baguette de fixation (4).
  8. Procédé selon l'une quelconque des revendications 1 à 5, dans lequel, la barre de serrage (2) est déplacée pour le déplacement des moyens d'accouplement (17, 23, 26), et en particulier dans lequel la barre de serrage (2) est entraînée en rotation autour d'un axe transversalement à l'axe longitudinal (X) du bâti de machine (3) ou est déplacé dans le sens longitudinal du bâti de machine (3).
  9. Machine à tamis vibrant (5) pour des installations de mélange d'asphalte, en particulier fabriquée ou pouvant être fabriquée en appliquant le procédé selon l'une quelconque des revendications 1 à 8, avec un bâti de machine (3) et avec au moins une barre de serrage (2) s'étendant dans la zone médiane du bâti de machine (3) transversalement à son axe longitudinal (X), sur laquelle une extrémité d'un tissu pour tamis (1, 1a, 1b) qui est pourvue d'une baguette de fixation (4) côté extrémité, est fixée par complémentarité de forme dans le sens de serrage du tamis (S) et dans les deux sens perpendiculairement au sens de serrage du tamis (S) au moyen de moyens d'accouplement (17, 23, 26) engageant la baguette de fixation (4), et dans laquelle les moyens d'accouplement (17, 23, 26) peuvent être déplacés et en particulier retirés éventuellement après un retrait préalable ou une neutralisation d'éventuels moyens de blocage depuis l'extérieur du bâti de machine (3), en vue de supprimer la liaison positive entre la barre de serrage (2) et la baguette de fixation (4).
  10. Machine à tamis vibrant (5) selon la revendication 9, dans laquelle la baguette de fixation (4) est fixée en outre par complémentarité de forme dans un sens opposé au sens de serrage du tamis (S) sur la barre de serrage (2).
  11. Machine à tamis vibrant (5) selon l'une quelconque des revendications 9 à 10, dans laquelle la liaison positive entre la baguette de fixation (4) et les moyens d'accouplement (17, 23, 26) existe sur toute la longueur de la baguette de fixation (4) ou sur plusieurs tronçons espacés, en particulier de même longueur de la baguette de fixation (4).
  12. Machine à tamis vibrant (5) selon l'une quelconque des revendications 9 à 11, dans laquelle les moyens d'accouplement (17, 23, 26) sont réalisés séparément de la barre de serrage (2) et peuvent être déplacés en vue de permettre une suppression de la liaison positive entre la barre de serrage (2) et la baguette de fixation (4) par rapport à la barre de serrage (2) et en particulier peuvent être retirés de celle-ci, et en particulier dans laquelle les moyens d'accouplement (17, 23, 26) peuvent être déplacés en vue de permettre une suppression de la liaison positive dans un sens transversalement à l'axe longitudinal (X) du bâti de machine (3).
  13. Machine à tamis vibrant (5) selon la revendication 12, dans laquelle les moyens d'accouplement (17, 23, 26) peuvent être déplacés pour permettre une suppression de la liaison positive essentiellement sur toute l'étendue de la baguette de fixation (4) ou peuvent être déplacés juste sur un tronçon de l'étendue de la baguette de fixation (4).
  14. Machine à tamis vibrant (5) selon l'une quelconque des revendications 9 à 13, dans laquelle la barre de serrage (2) et la baguette de fixation (4) pénètrent ou s'enfoncent l'une dans l'autre en particulier à distances régulières le long de l'étendue de la baguette de fixation (4) et sont reliées dans cette pénétration ou cet enfoncement par les moyens d'accouplement (17, 23, 26).
  15. Machine à tamis vibrant (5) selon la revendication 14, dans laquelle la baguette de fixation (4) présente plusieurs éléments (16) en forme de tronçon de tube espacés le long de son arête extérieure, qui sont disposés dans des interstices correspondants entre de tels éléments (14) en forme de tronçon de tube le long d'une arête extérieure de la barre de serrage (2), tous les éléments (14, 16) en forme de tronçon de tube présentant un axe (Y) commun, le long duquel ils sont transpercés par une ou par plusieurs barres d'accouplement (17) disposées axialement les unes derrière les autres et sont reliés les uns aux autres par là-même par complémentarité de forme dans le sens de serrage du tamis (S), les barres d'accouplement (17) pouvant être enlevées par un retrait axial, des éléments (14, 16) en forme de section de tube.
  16. Machine à tamis vibrant (5) selon la revendication 14, dans laquelle la baguette de fixation (4) présente plusieurs saillies (21) avec des contre-dépouilles (24) espacées le long de son arête extérieure, lesquelles entrent dans des ouvertures (20) correspondantes le long d'une arête extérieure de la barre de serrage (2) et sont reliées à la barre de serrage par complémentarité de forme, à l'intérieur de la barre de serrage (2), au moyen de moyens de verrouillage (23) s'engageant dans les contre-dépouilles (24) dans le sens de serrage du tamis (S), les moyens de verrouillage (23) pouvant être déplacés, si besoin est, pour supprimer la liaison positive.
  17. Machine à tamis vibrant (5) selon l'une quelconque des revendications 9 à 11, dans laquelle les moyens d'accouplement (26) sont reliés fermement à la barre de serrage (2), en particulier sont réalisés d'un seul tenant avec celle-ci, et la barre de serrage (2) peut être déplacée en vue de permettre une suppression de la liaison positive entre la barre de serrage (2) et la baguette de fixation (4) par rapport au bâti de machine (3), et en particulier dans laquelle la barre de serrage (2) peut être entraînée en rotation à cet effet autour d'un axe transversalement à l'axe longitudinal (X) du bâti de machine (3) ou peut être déplacée dans le sens longitudinal de celui-ci.
  18. Machine à tamis vibrant (5) selon l'une quelconque des revendications 9 à 17, dans laquelle le tissu pour tamis (1, 1a, 1b) est constitué d'un treillis métallique (10).
  19. Machine à tamis vibrant (5) selon l'une quelconque des revendications 9 à 18, avec plusieurs barres de serrage (2) s'étendant dans la zone médiane du bâti de machine (3) transversalement à son axe longitudinal (X) et sur différents plans, dans laquelle deux tissus pour tamis (1a, 1b) aux sens de serrage de tamis (S) opposés sont fixés respectivement sur au moins une partie de ces barres de serrage (2).
  20. Bâti de machine (3) pour une machine à tamis vibrant (5) selon l'une quelconque des revendications 9 à 19, avec une ou plusieurs barres de serrage (2), qui présentent plusieurs éléments (14) en forme de tronçon de tube espacés les uns des autres le long d'au moins une de ses arêtes extérieures avec un axe (Y) commun ou plusieurs ouvertures (20) de type fente ou peuvent être entraînée en rotation depuis l'extérieur autour d'un axe transversalement au sens longitudinal du bâti de machine (3) ou peuvent être déplacées depuis l'extérieur dans le sens longitudinal (X) du bâti de machine (3).
  21. Barre de serrage (2) pour une machine à tamis vibrant (5) selon l'une quelconque des revendications 9 à 19 ou pour un bâti de machine (3) selon la revendication 20, qui présente plusieurs éléments (14) en forme de tronçon de tube espacés les uns des autres le long d'au moins une de ses arêtes extérieures avec un axe (Y) commun ou plusieurs ouvertures (20) de type fente.
  22. Tissu pour tamis (1, 1a, 1b) composé d'une structure plane thermorésistante avec des ouvertures de tamis, en particulier d'un treillis métallique (10) ou d'une tôle perforée pour une machine à tamis vibrant (5) selon l'une quelconque des revendications 9 à 19, avec une baguette de fixation (4) disposée côté extrémité, dans lequel la baguette de fixation (4) présente plusieurs éléments (16) en forme de tronçon de tube espacés les uns des autres le long de son arête extérieure avec un axe commun (Y) ou plusieurs saillies (21) avec des contre-dépouilles (24).
EP03778655A 2003-12-17 2003-12-17 Procede pour fixer un element de filtration dans une machine a tamis vibrant et tamis vibrant pour centrales de melange d'asphalte Expired - Lifetime EP1694443B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2003/006137 WO2005068092A1 (fr) 2003-12-17 2003-12-17 Procede pour fixer un element de filtration dans une machine a tamis vibrant et tamis vibrant pour centrales de melange d'asphalte

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EP1694443A1 EP1694443A1 (fr) 2006-08-30
EP1694443B1 true EP1694443B1 (fr) 2008-11-12

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EP (1) EP1694443B1 (fr)
CN (1) CN100571898C (fr)
AT (1) ATE413932T1 (fr)
AU (1) AU2003285664A1 (fr)
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WO (1) WO2005068092A1 (fr)

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CN102500547B (zh) * 2011-10-24 2014-11-19 三一重工股份有限公司 沥青搅拌设备用筛网组件及振动筛
DE102020134630A1 (de) 2020-12-22 2022-06-23 Raps Gmbh & Co. Kg Siebeinrichtung für eine Wirbelstrom-Siebmaschine, Spannanlage, Siebmaschine und Verfahren zum Montieren wenigstens eines Siebs an einer Siebeinrichtung
CN115739283B (zh) * 2022-10-25 2023-08-01 北京中投润天环保科技有限公司 废料多级破碎系统

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3608720A (en) * 1969-05-07 1971-09-28 Symons Brothers Co Screen-cloth-securing means
US3943054A (en) * 1974-12-19 1976-03-09 Durex Products, Inc. Segmented screen body
DE2513101A1 (de) * 1975-03-25 1976-10-14 Hutter & Schrantz Ag Siebboden aus formteilen
US4137157A (en) * 1976-10-12 1979-01-30 Deister Machine Company, Inc. Screen tension assembly for vibratory screening apparatus
AUPP904499A0 (en) * 1999-03-08 1999-03-25 Cmi Malco Pty Ltd A screening apparatus

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WO2005068092A1 (fr) 2005-07-28
AU2003285664A1 (en) 2005-08-03
EP1694443A1 (fr) 2006-08-30
CN1909980A (zh) 2007-02-07
CN100571898C (zh) 2009-12-23
ATE413932T1 (de) 2008-11-15
DE50310792D1 (de) 2008-12-24

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