EP3746231B1 - Dispositif de tamisage - Google Patents

Dispositif de tamisage Download PDF

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Publication number
EP3746231B1
EP3746231B1 EP20719123.0A EP20719123A EP3746231B1 EP 3746231 B1 EP3746231 B1 EP 3746231B1 EP 20719123 A EP20719123 A EP 20719123A EP 3746231 B1 EP3746231 B1 EP 3746231B1
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EP
European Patent Office
Prior art keywords
pair
push rods
oscillating
screening device
cross members
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.)
Active
Application number
EP20719123.0A
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German (de)
English (en)
Other versions
EP3746231A1 (fr
Inventor
Rainer Eixelberger
Bernard TIMISCHL
Franz Anibas
Christian Url
Ermin Delibasic
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.)
Binder and Co AG
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Binder and Co AG
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Publication date
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Priority to SI202030010T priority Critical patent/SI3746231T1/sl
Publication of EP3746231A1 publication Critical patent/EP3746231A1/fr
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Publication of EP3746231B1 publication Critical patent/EP3746231B1/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
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling 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
    • B07B1/48—Stretching devices for screens
    • B07B1/485—Devices for alternately stretching and sagging screening surfaces
    • 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
    • B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted 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
    • B07B1/4663—Multi-layer screening surfaces
    • 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
    • B07B2201/00—Details applicable to machines for screening using sieves or gratings
    • B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens

Definitions

  • the invention relates to a screening device according to the preamble of claim 1.
  • Such screening devices are characterized by the use of flexible screen linings that are alternately compressed and stretched and are used wherever conventional screening devices with rigid screen linings clog and stick.
  • each screen lining of the screen surface which is built up by several screen linings, is clamped between two cross members that usually run transversely to the screen surface.
  • One of these two cross members is part of a first oscillating body, the other cross member is part of a second oscillating body.
  • the two vibrating bodies vibrate relative to each other and out of phase, which causes the compression and expansion of the screen linings.
  • a connecting component ie. one ends of the first cross member and the other ends of the first cross member of the first oscillating body are connected to one another.
  • the one ends of the second cross member and the other ends of the second cross member of the second oscillating body are connected to one another.
  • the connecting component is usually a sieve cheek of a sieve box.
  • One screen box is resiliently and thus swingingly mounted on a machine foundation, while the other screen box is supported resiliently or elastically on the screen box mounted on the machine foundation.
  • a drive usually an unbalanced drive, sets one of the screen boxes and thus a vibrating body to vibrate, so that the other screen box also vibrates.
  • the resilient or elastic mounting of one screen box on the other is coordinated in such a way that the two screen boxes (oscillating bodies) oscillate out of phase and in opposite directions.
  • Such a screening device is, for example, from DE 1 206 372 famous.
  • This consists of two oscillating bodies in the form of sieve boxes.
  • Each oscillating body comprises a screen box as well as cross members rigidly connecting the two screen cheeks of the screen box.
  • one oscillating body is resiliently mounted on the other oscillating body and is made to vibrate by means of a drive. Both oscillating bodies are set up on a foundation in a resilient manner.
  • Sieve devices which avoid this disadvantage by providing a stationary supporting structure on which the two oscillating bodies are arranged so as to be movable relative to the supporting structure and can be caused to vibrate.
  • a screening device is for example in U.S. 4,430,211 disclosed.
  • the known coupling of the two oscillating systems to the stationary support structure is primarily designed to relieve the bearing means, but not to support the sieving while the material to be sieved is being conveyed at the same time.
  • this has the consequence that a strong inclination of the sieve surface is required and, in addition, an oscillation of the two oscillation systems at an oscillation angle of 40 ° does not allow effective side sealing of the sieve surfaces, which in turn leads to increased sieve losses.
  • Another problem of a fundamental nature is the fact that there is generally a higher layer height in the feed area of the sieve surface than in the discharge area. For this reason, it is very often necessary to ensure appropriate material conveyance, especially in the feed area, which is usually achieved through greater screening dynamics with large oscillation amplitudes.
  • flip-wave screening machines that is to say screening machines in which the supporting structure is not stationary but is also vibrated and is therefore spring-mounted on a machine foundation, these larger amplitudes can be achieved in a relatively simple manner.
  • each push rod of a push rod pair with a push rod of the other push rod pair via shear-elastic elements, e.g. Push rubbers
  • shear-elastic elements e.g. Push rubbers
  • a particularly simple structure of the sieve device can be achieved while at the same time conveying the material to be sieved well.
  • the coupling axis resulting from the use of the elastic elements also enables the support frame, for example. to dimension the feet according to the direction of oscillation.
  • the coupling axes of each shear-elastic element run essentially parallel to the push rods in order to optimally start conveying the material to be screened to adapt the course of the sieve surfaces, which also run essentially parallel to the push rods.
  • the two vibrating bodies are designed to have the same mass.
  • the equality of mass of the two oscillating bodies enables an exact, phase-shifted oscillation, which helps to ensure that no dynamic loads are introduced into the supporting structure.
  • equality of masses in the present case is to be understood as a maximum difference of 7% between the masses of the two oscillating bodies, particularly preferably a maximum difference of 5%.
  • an eccentric drive which drives both oscillating bodies via the respective push rod pairs.
  • both pairs of push rods are connected to one another via a drive shaft with eccentric bushings and connecting rods. This creates the prerequisites for avoiding the introduction of dynamic loads into the stationary support structure and thus into the machine foundation or the stage of a machine hall.
  • the eccentric drive is arranged on the first or second push rod pair, which results in a particularly compact design of the screening device.
  • a further preferred embodiment of the invention provides that the oscillating body not supporting the eccentric drive has a balancing mass to compensate for the additional weight of the eccentric drive to compensate the load-bearing vibrating body.
  • the stationary support structure supplying and / or discharging system components or means for fastening these system components or dust-sealing system components are attached.
  • the fact that the supporting structure is stationary and does not move and therefore these system components can be used directly, directly without a gap and thus dust-tight on the supporting structure can be used can be attached.
  • the subsequent attachment of such system components at the installation site can also be simplified or accelerated by attaching means for fastening such system components to the supporting structure, these means preferably being manufactured in one piece with the supporting structure.
  • the first and second oscillating system each have groups of cross members arranged one below the other and, for the formation of several mutually extending screen surfaces, screen linings on and between the cross members of groups of the first oscillating system and these associated cross members of adjacent ones Groups of the second oscillation system are clamped.
  • the clamping takes place in such a way that a screen lining is clamped both to an upper cross member of a group of the one oscillating system and to an upper cross member of an adjacent group of the other oscillating system, an additional screen lining to and between further cross members of the two arranged below these upper cross members Groups is clamped, etc.
  • the cross members of each group are attached to mounting plates which are arranged to run essentially parallel to the supporting structure cheeks.
  • a mounting plate of each group of cross members is located on each side of the screening surface, preferably in the immediate vicinity of the supporting cheek arranged on the same side of the screening surface, the term supporting cheek being understood broadly in the present case. So it is not to be regarded as imperative that a support cheek is designed flat, but it can also be designed in the form of a frame or frame profile and therefore do not have a flat shape in the conventional sense.
  • the cross members of this group are attached to the inside of the mounting plates, that is, to the side facing the screen surface. There is a mounting pin on the outside of the mounting plates, which is connected to a push rod of the same oscillating system. In the case of the planar design of the supporting structure cheek, the connection is made through an opening in this supporting structure cheek.
  • a third oscillating body comprising third cross members and a fourth oscillating body including fourth cross members, with at least one further screen lining each being clamped or clamped between a third cross member and a fourth cross member and the third and fourth oscillating body relative to one another can be made to vibrate in order to alternately compress and expand the further screen linings, the third oscillating body comprising a third pair of push rods on which the third cross members are arranged and the fourth oscillating body comprises a fourth pair of push rods on which the fourth cross members are arranged and the The first pair of push rods and the third pair of push rods and the second pair of push rods and the fourth pair of push rods are elastically and / or resiliently connected to one another.
  • the oscillation amplitude of the delivery-side push rods is preferably set smaller than that of the feed-side push rods. It should not go unmentioned at this point that, in principle, further oscillating systems can also be provided in the stationary support structure, which are connected to the third and fourth oscillating systems in the same way as the third and fourth oscillating systems are connected to the first and second oscillating systems.
  • one push rod of the first push rod pair and one push rod of the second push rod pair are arranged in alignment with one another and / or that in each case one push rod of the second push rod pair and one push rod of the fourth push rod pair are arranged in alignment with one another, whereby a particularly compact design of the sieve device is made possible and a correspondingly uniformly extending sieve surface formed by the individual sieve linings is formed.
  • the third pair of push rods is coupled to the fourth pair of push rods via shear-elastic elements and / or the third and / or fourth pair of push rods are each coupled to the support structure via shear-elastic elements.
  • the elastic and / or resilient connection between the first pair of push rods and the third pair of push rods and / or the second pair of push rods and the fourth pair of push rods can be made, for example, by means of tension-compression springs or by means of shear-elastic elements, depending on the behavior of the third and fourth fourth oscillation system.
  • a plurality of stationary support structures as described above can be arranged on top of one another.
  • Fig. 1 to Fig. 3 show schematic views of a screening device according to the invention with a first oscillating body S1 and a second oscillating body S2.
  • Part of the first oscillating body S1 are first cross members 2.
  • Part of the second oscillating body are second cross members 3.
  • the screen surface 4 is inclined to the horizontal, with the feed area for the screenings in Fig. 1 is on the left, but is not specially marked.
  • the screen surface 4 is formed by a number of screen linings 4a. Each screen lining 4a is clamped between a first cross member 2 and a second cross member 3.
  • the first and last screen lining 4a of the screen surface 4 can be fastened differently for this purpose, ie. does not necessarily have to be clamped between one of the first and second cross members 2, 3.
  • the task of the material to be screened can, for example, be applied to the first screen lining 4a, in Fig. 1 the left-most screen lining.
  • the end regions of the first and second cross members 2, 3 are each connected to one another via push rods 7a, 7b and 8a, 8b, respectively, with FIG Fig. 1 only the push rods 7a, 8a are visible.
  • the push rods 7b, 8b are located on the rear side of the machine in this view.
  • Fig. 2 a schematic front view, all four push rods 7a, 7b, 8a, 8b are visible.
  • the first oscillating body S1 includes the push rod pair 7a, 7b in addition to the first cross members 2 and the second oscillating body S2 includes the second cross members 3 and the push rod pair 8a, 8b.
  • the push rods 7a, 7b, 8a, 8b can be, for example, I, H or U profile beams, preferably made of steel.
  • a supporting structure 1 is used to accommodate the two oscillating bodies S1 and S2. These are movably mounted on the support structure 1 so that they can oscillate with respect to this.
  • the support structure 1 can be designed as a support frame and can thus be individually adapted to any installation location.
  • a horizontal installation surface for example in the form of a machine foundation 5 or the floor of a machine hall, possible, but also on a subsurface that runs obliquely to the horizontal.
  • FIG. 1 to Fig. 3 the classic version of the installation is shown, namely on a machine foundation 5 or the floor of a machine shop.
  • the supporting structure 1 itself is designed as a screen box with supporting cheeks 1a, stiffeners 24 and feet 1b, which represent a possibility of adjusting the inclination of the screen surface 4.
  • the supporting cheeks 1a can also be attached to an inclined foundation so that no feet are required.
  • the supporting structure 1 is supported in the exemplary embodiment according to FIG Fig. 1 stationary on the machine foundation 5 without vibrating itself.
  • the stationary support structure 1 offers the advantage that no energy has to be expended in order to make it vibrate.
  • the drive energy required to operate the screening device according to the invention can be reduced by about 3/4 compared to conventional flip-flop screening devices with resilient mounting on a substrate.
  • the weight of the machine is lighter and the introduction of dynamic forces into the machine foundation is reduced or, with appropriate mass balancing, is completely eliminated, as will be explained in more detail below.
  • the bearing or coupling of the pairs of push rods 7a, 7b, 8a, 8b to the support structure 1 is carried out by means of shear-elastic elements 10a, in practice often also shear rubbers for short called. These allow an oscillation in the direction of a coupling axis 11, whereas no oscillations occur in different directions, but in any case only such small oscillations that they are negligible when considering the overall oscillation behavior of the oscillating bodies S1, S2.
  • the coupling axis 11 runs essentially parallel to the longitudinal axis of the push rods 7a, 7b, 8a, 8b.
  • the push rods 7a, 7b, 8a, 8b are supported on the one hand on brackets 9 of the supporting structure 1, but on the other hand also with one another via shear-elastic elements 10b.
  • the vibration excitation takes place via a drive unit 6 with a drive 6c, which is designed as an eccentric drive.
  • the drive 6c is arranged on the oscillating body S2, specifically on the pair of push rods 8a, 8b, the other oscillating body S1 is resiliently coupled to the drive 6c using a shear-elastic element 10c.
  • the motor 6a of the drive unit 6 is arranged on the stationary support structure 1 and is coupled to the eccentric drive 6c via a V-belt or a cardan shaft.
  • System components 14a, b, c and means 15a, b, c for fastening such system components are shown in dashed lines with material supplying or discharging system components.
  • These means 15a, b, c can be, for example, flanges attached to the supporting structure 1, via which the system components 14a, b, c can be fixedly connected to the supporting structure 1 at predetermined points, so that the supporting structure 1 and the system components are connected form a common sieve system.
  • the system components 14a, b, c can, for example, serve to supply or remove materials or material to be screened.
  • the system component 14a in Fig. 1 it is, for example, a feed chute via which the material to be screened can be guided onto the screen surface 4.
  • the system component 14b is a discharge chute through which unscreened material is transported to the screening device.
  • System component 14c is used to set up a supporting structure 1 having supporting structure cheeks 1 a correspondingly inclined and at the same time to discharge the screened material.
  • FIG. 4 shows a detailed view of the drive unit 6 from FIG Fig. 1 comprising a motor 6a which can be speed-controlled preferably via a frequency converter and which drives the eccentric shaft 6c via a belt 6b.
  • the vibrating body S1 is connected via its pair of push rods 7a, 7b and connecting rods 6d.
  • laminated wood leaf springs which are sufficiently flexible and via which the push rods 7a, 7b are moved to and fro in the direction of the arrows 13, act as connecting rods 6d.
  • connecting rods made of other materials that have the required flexibility is also conceivable.
  • connecting rods 6d are thin-walled steel springs.
  • the material GRP is also suitable for the production of GRP leaf springs with similar properties as the wood leaf springs and can therefore be used as connecting rods 6d in the application example at hand.
  • connection of the connecting rod 6d to the connecting rod pair 7a, 7b of the oscillating body S1 is carried out by screwing thrust rubber elements 10c fastened in the profile of the connecting rod pairs 7a, 7b to the connecting rod 6d, either directly or via intermediate plates (not shown).
  • the connecting rod pair 8a, 8b is connected directly to the eccentric drive 6c, for example by screwing the individual components.
  • shear-elastic elements 10a, 10b, 10c By using the shear-elastic elements 10a, 10b, 10c, an exclusively linear oscillation of the oscillating bodies S1, S2 is guaranteed. This enables the use of laterally raised screen mats 4a, as shown in particular in FIG Fig. 2 can be seen.
  • FIGS Fig. 1 to 4 show schematically the movements of the push rod pairs 7a, 7b, 8a, 8b and thus the vibration behavior of the vibrating bodies S1, S2 when a drive 6 is used, as in FIGS Fig. 1 to 4 shown.
  • the screening device is operated in the resonance range with an adjustable operating frequency.
  • Fig.5a shows the two oscillating bodies S1, S2 in the rest position.
  • the eccentric drive 6c arranged on the oscillating body S2 is, on the one hand, caused to vibrate via the connecting rod 6d, the pair of push rods 7a, 7b and thus the oscillating body S1.
  • the elastically mounted oscillating body S2 also oscillates.
  • Fig.5b shows the push rods 8a, 8b in their - based on the rest position in Fig.5a - Due to the eccentricity "e" of the eccentric shaft 6c, the maximum deflected state by the oscillation amplitude "a".
  • the push rods 7a, 7b are deflected in the opposite direction by the same amplitude "a".
  • the screen linings are alternately compressed and stretched due to the movements of the pairs of push rods 7a, 7b, 8a, 8b, which are also accompanied by corresponding movements of the first and second cross members 2, 3 and can therefore easily eject plug-in grains that clog the screen openings when screening material is difficult to screen.
  • the screenings are conveyed from left to right during screening in the embodiment variants shown.
  • the screen surface 4 is inclined by the angle ⁇ relative to the horizontal.
  • the angle ⁇ is approximately between 5 ° and 25 °, preferably between 10 ° and 25 °, particularly preferably between 15 ° and 20 ° second cross members 2, 3 is considered, since the actual screen surface 4 formed by the screen linings 4a does not form a continuously straight surface.
  • Fig. 6 shows an embodiment in which two screening devices according to the invention are arranged one above the other, in which the stationary supporting structure of the one screening device is mounted on the stationary support structure of the other screening device. Means for connecting and locking the two supporting structures to one another are not shown. Due to the fact that, given the appropriate dimensioning of the vibrating bodies, no dynamic loads are introduced into the machine foundation, more than two such supporting structures including the vibrating bodies can be arranged one above the other without critical forces on the stationary supporting structures imposing a height limitation.
  • Fig. 7 shows an embodiment of a sieve device according to the invention in which two sieve surfaces 4 are provided running one below the other without the structural complexity of the sieve device increasing significantly, since only two pairs of push rods 7a, 7b, 8a, 8b are still used.
  • the simple, structural design is characterized in that the first and second oscillating systems S1, S2 have groups G1, G2 of cross members 2, 2a, 3, 3a arranged one below the other. Specifically, mounting plates 16a, 16b are arranged on the vibrating system S1 on both sides of the screen surface 4 or the screen linings 4a. A group G1 of cross members, specifically a first cross member 2 and a further first cross member 2a, are mounted on the mounting plates 16a, 16b, one below the other.
  • a mounting plate 17a, 17b are also arranged on this on both sides of the screen surface 4 or the screen linings 4a.
  • a group G2 of crossbeams, specifically a second crossbeam 3 and a further second crossbeam 3a, are mounted one below the other on the mounting plates 17a, 17b.
  • Fig. 8 shows on the left side a schematic sectional view through a mounting plate 16a and on the right side a schematic sectional view through a mounting plate 17b.
  • the groups G1 and G2 are arranged distributed alternately along the screen surface 4, so that a screen lining 4a is clamped both to a first cross member 2 of a group G1 of the oscillating system S1 and to a second cross member 3 of an adjacent group G2 of the oscillating system S2.
  • an additional screen lining 4c stretched below the screen lining 4a is clamped to a further first cross member 2a of group G1 and a further second cross member 3a of group G2.
  • the mounting plates 16a, 16b and 17a, 17b run parallel to the supporting structure cheeks 1b.
  • the cross members of a group G1 or G2 are fastened on the inside of the mounting plates 16a, 16b or 17a, 17b, that is to say on the sides facing the screen surfaces 4.
  • openings are provided in the supporting cheeks 1a.
  • Fig. 9 shows an embodiment of a screening device according to the invention, in which two additional oscillating systems S3 and S4 are provided, which are designed in the same way as the two oscillating systems S1 and S2 and are coupled in the same way to the supporting structure 1 as well as in the same way Way are coupled with each other.
  • the oscillation system S3 is also coupled to the oscillation system S1 and the oscillation system S4 to the oscillation system S2, namely via resilient and / or elastic elements, preferably via or that is via tension-compression springs (23a, 23b).
  • Fig. 10 shows an embodiment of the screening device according to Fig. 9 however, with shear-elastic connecting elements 22a, 22b (similar to 10c) instead of the tension-compression springs (23a, 23b), so that according to the in Fig. 1 illustrated embodiment, a purely linear oscillation of the oscillation system S1 and S2 takes place.
  • all of the screen surfaces 4, 26 can be designed with different material conveying capacities, which does justice to the fact that in the feed area, due to the there The prevailing layer height of the material to be screened requires a higher material delivery rate than in the discharge area.
  • the screen surface 4 is formed by the screen linings 4a of the first and second oscillating systems S1, S2 and a further screen surface 26 is formed by the further screen linings 4b of the third and fourth oscillating systems S3, S4.
  • connection of the two screen surfaces 4 and 26 takes place via a screen lining 4d.
  • the oscillation amplitudes of the Pairs of push rods 20a, 20b or 21a, 21b of the third S3 or fourth S4 oscillation system can be set differently to the oscillation amplitudes of the first oscillation system S1 and the second oscillation system S2.
  • the oscillation amplitude of the delivery-side push rod pairs 20a, 20b, 21a, 21b is preferably set smaller than that of the feed-side push rod pairs 7a, 7b, 8a, 8b.
  • Fig.11 shows an embodiment in which the screen devices forming the individual screen decks are basically those in FIGS Fig. 1 to 3 the sieve device shown, with the difference that the inclination of the sieve surface 4 decreases with increasing sieve length, as can be seen from the angles a1 and a2 shown, since ⁇ 1> ⁇ 2.
  • the pairs of push rods 7a, 7b, 8a, 8b also have a curved shape.
  • a single sieve device according to the invention as in FIGS Fig. 1 to Fig. 3 shown have a screen surface 4, the inclination of which decreases with increasing screen length.

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  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Claims (17)

  1. Dispositif de tamisage comprenant
    un premier corps oscillant (S1) comprenant des premières barres transversales (2) et
    un deuxième corps oscillant (S2) comprenant des deuxièmes barres transversales (3), dans lequel
    des premières barres transversales (2) et des deuxièmes barres transversales (3) sont disposées alternativement et de préférence transversalement à une surface de tamisage (4) et présentent chacune des dispositifs de serrage
    au moyen desquels des garnitures de tamisage (4a) formant la surface de tamisage (4) peuvent être serrées ou sont serrées entre une première barre transversale (2) et une deuxième barre transversale (3), et les premier (S1) et deuxième (S2) corps oscillants peuvent être mis en oscillations l'un par rapport à l'autre pour comprimer et étirer alternativement les garnitures de tamisage (4a), dans lequel
    le premier corps oscillant (S1) comprend une première paire de tiges de poussée (7a, 7b) sur laquelle sont disposées les premières barres transversales (2) et
    le deuxième corps oscillant (S2) comprend une deuxième paire de tiges de poussée (8a, 8b) sur laquelle sont disposées les deuxièmes barres transversales (3) et
    une structure de support stationnaire (1) recevant les deux corps oscillants (S1, S2) est prévue, dans lequel les premier et deuxième corps oscillants (S1, S2) peuvent être mis en oscillation par rapport à la structure de support stationnaire (1),
    caractérisé en ce que
    la première paire de tiges de poussée (7a, 7b) et la deuxième paire de tiges de poussée (8a, 8b) sont chacune accouplées à la structure de support (1) par l'intermédiaire d'éléments élastiques en cisaillement (10a) et sont accouplées l'une à l'autre par l'intermédiaire d'éléments élastiques en cisaillement (10b), lesquels éléments élastiques en cisaillement (10a, 10b) permettent chacun une oscillation selon un axe d'accouplement (11), les axes d'accouplement (11) de chaque élément élastique en cisaillement (10a, 10b) s'étendant sensiblement parallèlement aux tiges de poussée (7a, 7b, 8a, 8b).
  2. Dispositif de tamisage selon la revendication 1, caractérisé en ce que le premier corps oscillant (S1) et le deuxième corps oscillant (S2) sont réalisés avec une même masse.
  3. Dispositif de tamisage selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu un entraînement excentrique (6c) qui entraîne à la fois la première paire de tiges de poussée (7a, 7b) et la deuxième paire de tiges de poussée (8a, 8b).
  4. Dispositif de tamisage selon la revendication 3, caractérisé en ce que l'entraînement excentrique (6c) est disposé sur la première (7a, 7b) ou la deuxième (8a, 8b) paire de tiges de poussée.
  5. Dispositif de tamisage selon la revendication 4, caractérisé en ce que le corps oscillant ne portant pas l'entraînement excentrique (6c) présente une masse de compensation pour compenser le poids supplémentaire du corps oscillant portant l'entraînement excentrique (6).
  6. Dispositif de tamisage selon la revendication 4 ou 5, caractérisé en ce que le corps oscillant ne portant pas l'entraînement excentrique (6c) est relié à l'entraînement excentrique (6c) par l'intermédiaire d'une bielle (6d) reliée à un élément élastique en cisaillement 10c.
  7. Dispositif de tamisage selon l'une des revendications 1 à 6, caractérisé en ce que des composants d'installation (14a, b, c) pour amener et/ou évacuer un matériau ou des moyens (15a, b, c) pour fixer ces composants d'installation ou des composants d'installation assurant l'étanchéité à la poussière sont fixés ou disposés sur la structure de support stationnaire (1).
  8. Dispositif de tamisage selon l'une des revendications précédentes, caractérisé en ce que des premier et deuxième systèmes oscillants (S1, S2) présentent des groupes (G1, G2) de barres transversales (2, 2a, 3, 3a) disposées les unes en dessous des autres et des garnitures de tamisage (4a) sont serrées sur et entre les barres transversales (2, 2a) des groupes (G1) du premier système oscillant (S1) et les barres transversales (3, 3a) qui leur sont associées des groupes (G2) adjacents à celles-ci du deuxième système oscillant (S2), pour former une pluralité de surfaces de tamisage (4) disposées les unes au-dessus des autres.
  9. Dispositif de tamisage selon la revendication 8, caractérisé en ce que les barres transversales (2, 2a, 3, 3a) de chaque groupe (G1, G2) sont fixées à des plaques de montage (16a, 16b, 17a, 17b) qui sont disposées de manière à s'étendre sensiblement parallèlement aux joues de structure de support (1a).
  10. Dispositif de tamisage selon l'une des revendications précédentes, caractérisé en ce que
    un troisième corps oscillant (S3) comprenant des troisièmes barres transversales (18) et
    un quatrième corps oscillant (S4) comprenant des quatrièmes barres transversales (19) sont prévus, dans lequel
    au moins une autre garniture de tamisage (4b) peut être serrée entre une troisième barre transversale (18) et une quatrième barre transversale (19) et des troisième (S3) et quatrième (S4) corps oscillants peuvent être mis en oscillations l'un par rapport à l'autre pour comprimer et étirer alternativement les autres garnitures de tamisage (4b), dans lequel
    le troisième corps oscillant (S3) comprend une troisième paire de tiges de poussée (20a, b) sur laquelle sont disposées les troisièmes barres transversales (18) et
    le quatrième corps oscillant (S4) comprend une quatrième paire de tiges de poussée (21a, b) sur laquelle sont disposées les quatrièmes barres transversales (19) et
    la première paire de tiges de poussée (7a, 7b) et la troisième paire de tiges de poussée (20a, 20b) ainsi que la deuxième paire de tiges de poussée (8a, 8b) et la quatrième paire de tiges de poussée (21a, 21b) sont reliées entre elles de manière élastique et/ou résiliente.
  11. Dispositif de tamisage selon la revendication 10, caractérisé en ce que, à chaque fois, une tige de poussée (7a, 7b) de la première paire de tiges de poussée et une tige de poussée (8a, 8b) de la deuxième paire de tiges de poussée (8a, 8b) sont disposées en alignement l'une avec l'autre.
  12. Dispositif de tamisage selon la revendication 10 ou 11, caractérisé en ce que, à chaque fois, une tige de poussée (8a, 8b) de la deuxième paire de tiges de poussée et une tige de poussée (21a, 21b) de la quatrième paire de tiges de poussée sont disposées en alignement l'une avec l'autre.
  13. Dispositif de tamisage selon l'une des revendications 10 à 12, caractérisé en ce que la troisième paire de tiges de poussée (20a, 20b) est accouplée à la quatrième paire de tiges de poussée (21a, 21b) par l'intermédiaire d'éléments élastiques en cisaillement (10b).
  14. Dispositif de tamisage selon l'une des revendications 10 à 13, caractérisé en ce que la troisième (20a, 20b) et/ou la quatrième (21a, 21b) paire de tiges de poussée sont accouplées à la structure de support (1) par l'intermédiaire d'éléments élastiques en cisaillement (10a).
  15. Dispositif de tamisage selon l'une des revendications 10 à 14, caractérisé en ce que la liaison élastique et/ou résiliente entre la première paire de tiges de poussée (7a, 7b) et la troisième paire de tiges de poussée (20a, 20b) et/ou entre la deuxième paire de tiges de poussée (8a, 8b) et la quatrième paire de tiges de poussée (21a, 21b) est réalisée à chaque fois au moyen d'un ressort de traction-compression (23a, b).
  16. Dispositif de tamisage selon l'une des revendications 11 à 14, caractérisé en ce que la liaison élastique et/ou résiliente entre la première paire de tiges de poussée (7a, 7b) et la troisième paire de tiges de poussée (20a, 20b) et/ou entre la deuxième paire de tiges de poussée (8a, 8b) et la quatrième paire de tiges de poussée (21a, 21b) est réalisée à chaque fois au moyen d'un élément de liaison élastique en cisaillement (22a, 22b).
  17. Dispositif de tamisage selon l'une des revendications précédentes, caractérisé en ce que plusieurs structures de support (1) sont disposées en appui les unes sur les autres.
EP20719123.0A 2019-03-29 2020-03-30 Dispositif de tamisage Active EP3746231B1 (fr)

Priority Applications (1)

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SI202030010T SI3746231T1 (sl) 2019-03-29 2020-03-30 Sejalna naprava

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EP19166047.1A EP3714996A1 (fr) 2019-03-29 2019-03-29 Dispositif de tamisage
PCT/EP2020/058979 WO2020201220A1 (fr) 2019-03-29 2020-03-30 Dispositif de tamisage

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EP (2) EP3714996A1 (fr)
JP (1) JP7119240B2 (fr)
KR (1) KR20210145146A (fr)
CN (1) CN113795338B (fr)
AU (1) AU2020252144B2 (fr)
BR (1) BR112021017234B1 (fr)
CA (1) CA3135316C (fr)
DK (1) DK3746231T3 (fr)
ES (1) ES2893790T3 (fr)
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EP3714996A1 (fr) * 2019-03-29 2020-09-30 Binder + Co AG Dispositif de tamisage
CN115365131A (zh) * 2022-09-08 2022-11-22 塞尔姆（北京）科技有限责任公司 一体式多层浮动筛框
CN117066088B (zh) * 2023-10-13 2023-12-19 泸州聚购科技发展有限公司 一种重晶石粉生产用级配系统

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DE1206372B (de) 1964-09-26 1965-12-09 Albert Wehner Siebrost
DE1275339B (de) * 1967-07-13 1968-08-14 Albert Wehner Siebmaschine
FR1605322A (fr) 1968-07-18 1974-08-02
DE2425953C3 (de) 1974-05-30 1979-02-01 Hein, Lehmann Ag, 4000 Duesseldorf Niedrig bauende Siebmaschine
AU545288B2 (en) * 1980-10-13 1985-07-11 Dabmar Manufacturing Co. Pty. Ltd. Vibrating screen
SU1050763A1 (ru) 1982-05-04 1983-10-30 Специальное конструкторско-технологическое бюро Института геотехнической механики АН УССР Виброгрохот
DE3226574C1 (de) * 1982-07-16 1984-01-19 Hein, Lehmann AG, 4000 Düsseldorf Siebmaschine
JPS5969180U (ja) 1982-10-30 1984-05-10 六甲バタ−株式会社 シ−ト状食品の包装体
SU1111838A1 (ru) 1983-04-01 1984-09-07 Государственный проектно-конструкторский институт "Гипромашуглеобогащение" Грохот
AT379088B (de) 1984-02-10 1985-11-11 Binder Co Ag Siebvorrichtung
SU1540870A1 (ru) 1987-12-07 1990-02-07 Всесоюзный научно-исследовательский и проектный институт механической обработки полезных ископаемых "Механобр" Виброгрохот с деформируемой просеивающей поверхностью
DE3921349A1 (de) * 1989-06-29 1991-01-03 Bruederlein Johannes Siebmaschine
AT400533B (de) * 1992-12-11 1996-01-25 Ife Gmbh Spannwellensieb
WO2003045587A1 (fr) * 2001-11-29 2003-06-05 Binder + Co. Aktiengesellschaft Dispositif cribleur
AT411874B (de) * 2003-03-07 2004-07-26 Statec Anlagentechnik Gmbh Siebvorrichtung
US8757392B2 (en) 2011-11-23 2014-06-24 Action Vibratory Equipment, Inc. Flexible mat screening apparatus with offset supports
AT14201U1 (de) * 2013-11-15 2015-05-15 Binder Co Ag Siebmaschine mit Antrieb
EP3714996A1 (fr) * 2019-03-29 2020-09-30 Binder + Co AG Dispositif de tamisage

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ZA202106287B (en) 2022-08-31
AU2020252144B2 (en) 2022-06-23
ES2893790T3 (es) 2022-02-10
BR112021017234B1 (pt) 2023-03-07
US11850632B2 (en) 2023-12-26
JP7119240B2 (ja) 2022-08-16
US20220168779A1 (en) 2022-06-02
BR112021017234A2 (fr) 2021-11-09
JP2022518962A (ja) 2022-03-17
AU2020252144A1 (en) 2021-10-28
HUE056001T2 (hu) 2022-01-28
EP3746231A1 (fr) 2020-12-09
WO2020201220A1 (fr) 2020-10-08
SI3746231T1 (sl) 2021-11-30
DK3746231T3 (da) 2021-10-11
CA3135316A1 (fr) 2020-10-08
CN113795338A (zh) 2021-12-14
CN113795338B (zh) 2023-04-07
EP3714996A1 (fr) 2020-09-30
CA3135316C (fr) 2023-07-11
KR20210145146A (ko) 2021-12-01

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