EP2895277B1 - Vorrichtung und verfahren zum ultraschallsieben - Google Patents

Vorrichtung und verfahren zum ultraschallsieben Download PDF

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Publication number
EP2895277B1
EP2895277B1 EP13718170.7A EP13718170A EP2895277B1 EP 2895277 B1 EP2895277 B1 EP 2895277B1 EP 13718170 A EP13718170 A EP 13718170A EP 2895277 B1 EP2895277 B1 EP 2895277B1
Authority
EP
European Patent Office
Prior art keywords
screen fabric
screen
ultrasonic vibrations
ultrasound
introducing
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
EP13718170.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2895277A1 (de
Inventor
Jürgen KISING
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.)
Artech Ultrasonic Systems AG
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Artech Ultrasonic Systems AG
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Filing date
Publication date
Application filed by Artech Ultrasonic Systems AG filed Critical Artech Ultrasonic Systems AG
Priority to PL13718170T priority Critical patent/PL2895277T3/pl
Publication of EP2895277A1 publication Critical patent/EP2895277A1/de
Application granted granted Critical
Publication of EP2895277B1 publication Critical patent/EP2895277B1/de
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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
    • B07B1/40—Resonant vibration 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
    • B07B1/42—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
    • 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
    • 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
    • B07B2230/00—Specific aspects relating to the whole B07B subclass
    • B07B2230/04—The screen or the screened materials being subjected to ultrasonic vibration

Definitions

  • ultrasound excitation of the screen fabric is no longer performed via the screen frame but via sound conductors or resonators arranged on the screen fabric, in particular glued-on sound conductors, ie sound conductors tuned to a specific ultrasound frequency.
  • sound conductors or resonators arranged on the screen fabric, in particular glued-on sound conductors, ie sound conductors tuned to a specific ultrasound frequency.
  • Such screening systems are for example from the FR 2 682 050 or the DE 10 2006 047 592 known.
  • From the US 5,799,799 A is a device for ultrasonic sieving with a sieve frame, arranged with a sieve frame arranged in the sieve frame, with at least one ultrasonic converter for generating ultrasonic vibrations and at least one means for introducing ultrasonic vibrations in the sieve fabric, in which the means for introducing ultrasonic vibrations in the sieve fabric the ultrasound converter is in a conductive connection, wherein at least one of the means for introducing ultrasonic vibrations in the screen fabric is arranged so movable relative to the screen fabric that the location of the screen fabric at which the introduction of the ultrasonic vibrations in the screen fabric by the means for initiating the ultrasonic vibrations in the screen fabric is made by moving the means for initiating the ultrasonic vibrations in the screen mesh is reltiv to the screen fabric changeable.
  • the object of the invention is to provide a method for ultrasound sieving and an ultrasound sieve, which ensure an improved distribution of the ultrasound excitation via the sieve cloth and thus to achieve an improved throughput of the sieve material.
  • the device according to the invention for ultrasonic sieving has a sieve frame with a sieve cloth arranged in the sieve frame.
  • the mesh will be stretched through the screen frame and / or worn by this.
  • the screen fabric is arranged in the screen frame so that the material to be screened through the passage opening of the screen frame can pass only when it passes through the screen fabric.
  • the device according to the invention for ultrasonic sieving has at least one ultrasonic converter for generating ultrasonic vibrations and at least one means for introducing ultrasonic vibrations into the sieve cloth, which is in sound-conducting communication with the ultrasonic converter.
  • ultrasonic converter for generating ultrasonic vibrations
  • means for introducing ultrasonic vibrations into the sieve cloth which is in sound-conducting communication with the ultrasonic converter.
  • the ultrasound converters whose function is the conversion of electrical signals into ultrasonic vibrations, are usually controlled and driven by an ultrasound generator which generates the corresponding electrical signals.
  • ultrasound generators are usually sold separately and are capable of driving or driving ultrasound converters of the most varied devices, which is why they are not necessarily regarded as part of the device for ultrasonic sieving, even if they are necessary for their operation.
  • the type and control principle of the generator be it fixed frequency, variation over a given frequency range or phase locking, irrelevant, it works with any generators and arbitrary control principles.
  • At least one of the means for introducing ultrasonic vibrations into the screen fabric is arranged so as to be movable relative to the screen fabric such that the location of the screen fabric at which the introduction of the ultrasonic vibrations into the screen fabric by the means for initiating the ultrasonic vibrations in the screen fabric is changed by movement of the means for introducing the ultrasonic vibrations in the screen fabric relative to the screen fabric.
  • a degree of freedom of movement is provided for at least one of the means for introducing ultrasonic vibrations into the screen cloth, which enables a displacement of the location at which the introduction of the ultrasonic vibrations into the screen cloth.
  • the safe and uniform distribution of the ultrasonic vibrations through the screen fabric is thus ensured according to the invention in that the location at which the ultrasound is introduced into the screen fabric can be varied by a movable arrangement of the means for introducing the ultrasonic vibrations in the screen fabric.
  • the location at which the ultrasound is introduced into the screen fabric can be varied by a movable arrangement of the means for introducing the ultrasonic vibrations in the screen fabric.
  • Above the sieve fabric means in the opposite direction of the bulk material flow upstream of the sieve fabric, ie in unswept bulk flow.
  • Below the sieve fabric accordingly means in the bulk material flow downstream of the sieve fabric, ie in the sieved bulk material flow. The latter arrangement is preferred.
  • At least one of the means for introducing ultrasonic vibrations in the screen fabric is arranged on or below the screen fabric, that it is at least when the ultrasound screen is arranged in the desired powder flow , Puts pressure on the mesh.
  • the pressure is so great that a deformation of the screen fabric stretched in the screen frame takes place.
  • a means for inducing ultrasonic vibrations in the screen fabric pressure on the mesh especially if there are means for initiating ultrasonic vibrations in the mesh independently of the screen mesh stored or fixed, so that means and mesh , Preferably also at their contact surfaces with each other, are movable relative to each other.
  • this protrusion can lead, on the side of the screen fabric facing away from the means for introducing ultrasound into the screen fabric, to the contact points between the means for introducing the ultrasound into the screen the mesh and the mesh Bulging can be seen, in particular, essentially reflect the structure of the means for introducing the ultrasound into the mesh.
  • the pressure can be amplified by the use of the ultrasound sieve by the powder flow or possibly only then arise.
  • conventional ultrasound sieves in which no independent storage or fixation of means for introducing the ultrasound tissue was ensured in the mesh and mesh, especially in glued with the mesh fabric means for introducing the ultrasound into the mesh, a strong powder flow leads to the mesh only in that the screen fabric deformed into the screen fabric together with means arranged thereon for the introduction of the ultrasound.
  • a superior principle is that in each case a device for ultrasonic sieving with a sieve frame with a sieve frame arranged in the sieve frame with at least one ultrasonic converter for generating ultrasonic vibrations, and with at least one means for introducing ultrasonic vibrations into the sieve, wherein the means for introducing ultrasonic vibrations into the screen fabric with the ultrasonic converter in sound conducting connection, means being provided for introducing a force into at least one of the means for inducing ultrasonic vibrations in the screen fabric so that movement or pressure can be evoked or caused.
  • the means for inducing the ultrasonic vibrations in the screen cloth is so movable that any part of the screen cloth can be brought into contact with a part of, but not necessarily the same or even any part of the means for introducing the ultrasonic vibrations into the screen cloth , This will complete the sonication of the entire Screen fabric secured with ultrasound.
  • the screen fabric is non-metallic, in particular made of plastic. This allows for the use of lower cost systems and can be particularly useful in sieving aggressive, e.g. be beneficial to corrosive substances.
  • the mesh size is the largest distance between two stitches, which occurs in a stitch, again.
  • the device for ultrasonic sieving further comprises a drive device for moving at least one movable means for introducing the ultrasonic vibrations into the sieve cloth relative to the sieve cloth.
  • This may in particular be a motor which moves the movable means for introducing the ultrasonic vibrations into the screen cloth.
  • the drive can also be effected purely mechanically by utilizing changes in the potential energy resulting from changes in position of the screen in order to increase the movement effect.
  • the screen frame on the side of the screen fabric, on which the movable means for introducing the ultrasonic vibrations are arranged in the screen fabric a support structure on which the movable means for initiating the ultrasonic vibrations is movably mounted in the screen fabric and / or on which a drive device for moving the movable means for introducing ultrasound is arranged in the screen fabric.
  • the movable means for introducing ultrasound into the screen fabric is rotatable relative to the screen fabric.
  • This degree of freedom is particularly advantageous for circular screen frames, because if one rotates the means for introducing the ultrasonic vibrations into the screen mesh about an axis perpendicular to the screen mesh through the center of the circular screen frame and, in addition, its extension to the radius or diameter of the circular screen frame.
  • a drive is then possible directly through the rotor of a motor.
  • the movable means for introducing ultrasound into the screen fabric relative to the screen fabric is arranged so that the movable means for introducing ultrasound into the screen fabric or an axis about which it is rotatable at an angle between 90 ° and 0 ° to the mesh.
  • This can be further optimized by the angle at which the movable means for introducing ultrasound into the mesh or the axis about which it is rotatable to the screen mesh, is changeable.
  • the movable means for introducing ultrasound into the sieve fabric can be made linearly displaceable relative to the sieve fabric.
  • This degree of freedom is particularly important in rectangular screen frame. Shaping the means for inducing the ultrasonic vibrations in the screen fabric linearly in a direction parallel to two opposite sides of a rectangular screen frame slidably over the entire length of these pages and additionally adapting its extension to the distance between these opposite sides of the screen frame It is very easy to ensure that ultrasound can be introduced directly into any area of the mesh. A drive is then possible by a simple motorized linear drive.
  • the means for introducing ultrasonic vibrations with the Ultrasonic converter is in sound conducting connection, arranged in a screening operation at least temporarily in a flow of the material to be screened and at least temporarily in the course of the process Screen fabric excited by the means for introducing ultrasonic vibrations into the screen fabric with ultrasonic vibrations.
  • the method becomes particularly efficient if pressure is exerted on the screen fabric from above or from below by at least one or more means for introducing the ultrasonic vibrations into the screen fabric.
  • pressure is so great that it causes a deformation of the screen fabric stretched in the screen frame.
  • a superior principle is that in each case methods for ultrasonic sieving, in which a device with a sieve frame (11,21,31,41), arranged with a sieve frame in the sieve frame, with at least one ultrasonic converter for generating ultrasonic vibrations, and at least one means for the introduction of ultrasonic vibrations in the screen fabric, wherein the means for introducing ultrasonic vibrations in the screen mesh with the ultrasonic converter in sound conducting connection, is arranged in a screening at least temporarily in a flow of the material to be screened and in the course of the process, at least temporarily Screen fabric is excited by the means for inducing ultrasonic vibrations in the screen fabric with ultrasonic vibrations are provided, wherein acting on at least one of the means for introducing ultrasonic vibrations into the screen fabric, a force which a movement or a pressure causes the mesh.
  • At least one or more means for introducing the ultrasonic vibrations into the screen fabric from above or from below are brought into contact with the screen fabric and that the means for Introduction of ultrasonic vibrations in the mesh directly or indirectly via feed sound conductor with one or more ultrasonic converters brought into contact.
  • the method can be designed particularly efficiently if, in addition to the movement of the means for introducing the ultrasound into the screen tissue, the frequency of the ultrasound excitation is achieved by passing through one or more frequency ranges, in particular of the frequency range (s) in which the device resonates, or in which maxima the power consumption of the device are varied.
  • this can be designed so that at a given position of the means for initiating the ultrasonic vibrations in the mesh on the mesh once the selected frequency range is swept and then the position is carried out by movement of the means for introducing the ultrasonic vibrations in the mesh to the next desired position ,
  • it may also be provided a continuous frequency variation in a continuous movement of the means for introducing the ultrasonic vibrations in the screen fabric.
  • the frequency of the ultrasound excitation is in the megahertz range, i. in the range between 1 and 10 MHz.
  • Particularly advantageous is a method in which in addition the angle at which the movable means for introducing ultrasound into the screen mesh to the screen mesh is changed.
  • FIG. 1 shows an apparatus for ultrasonic sieve 10 with a circular sieve frame 11, in which a sieve cloth 12 is arranged. While in reality the screen cloth 12 extends over the entire area enclosed by the circular screen frame 11, it is in FIG. 1 shown only partially to allow a clearer representation of lying below the screen fabric 12 components of the device for ultrasonic sieve 10. For the same reason are also in the Figures 2 . 3 and 4 actually the only partially covered by the respective sieve frames 21, 31 and 41 enclosed areas screen cloths 22, 32 and 42, respectively.
  • the mesh fabric 12 may be glued, for example, on the circular screen frame 11.
  • a movable means 13 for introducing ultrasonic vibrations in the screen fabric 12 in the form of a voltage applied to the screen fabric 12 plate-shaped resonator is provided whose length corresponds to the diameter of the circular screen frame 11.
  • the plate-shaped resonator lies with its narrow side on the screen fabric along a contact line which corresponds to a diameter of the circular screen frame 11 at.
  • the ultrasound vibrations introduced into the screen mesh by the plate-shaped resonator are generated by an ultrasound converter 15 and are transmitted to the plate-shaped resonator via a feed sound conductor 14 configured here in a siphon-like manner.
  • the means for introducing ultrasonic vibrations in the form of the screen fabric 12 adjacent plate-shaped resonator is rotatable about an axis extending through the center of the circular screen frame perpendicular to the screen fabric 12 axis.
  • the supply sound conductor 14 and the ultrasonic converter 15 are also rotated, which are preferably firmly connected to each other and with the plate-shaped resonator, so that they form a common rigid assembly, the location on the screen fabric 12, on the introduction of the ultrasonic vibrations in the screen fabric 12 takes place.
  • the movable means 13 for introducing ultrasonic vibrations into the screen fabric 12 is thus arranged movable relative to the screen fabric such that the location of the screen fabric at which the introduction of the ultrasonic vibrations in the screen fabric by the movable means 13 for introducing the ultrasonic vibrations in the screen fabric, by movement of the moving one
  • 13 for the initiation of the ultrasonic vibrations in the screen cloth 12 relative to the screen cloth 12 is changeable.
  • the selected geometry of the movable means 13 for initiating the ultrasonic vibrations in the screen fabric that 12 ultrasound is introduced into the screen fabric 12 by the rotational movement at each point on the surface of the screen fabric, which in particular for a reliable avoidance or removal of Plug grains is advantageous.
  • FIG. 1 shown are actually existing means for holding the assembly of ultrasonic converter 15, feed sound conductor 14 and plate-shaped resonator 13 and a drive with which this rotational movement can be caused, as there is a variety of implementation options. Also can be varied the type of rotation performed. For example, in the embodiment of the FIG. 1 either a continuous rotation in one direction can be provided, but it can also be carried out in each case a rotation through 180 ° in one direction, which then takes place a rotation through 180 ° in the opposite direction.
  • the ultrasonic converter 15 is disposed on the surface of a rotatable with a motor turntable, which rotates about the axis passing through the center of the circular screen frame 11 perpendicular to the screen fabric 12 axis, in the middle at the point of the surface where the axis of rotation intersects them.
  • a turntable must be stored so that it a possible movement of the screen frame 11, as it takes place eg in tumble or Vibrationssiebmaschinen, along, so it remains fixed relative to the screen frame 11.
  • Another possibility could be to vibrationally decoupled and rotationally support the plate-shaped resonator in a running along the inner periphery of the screen frame 11, not shown bearing and provide a motor, not shown, by interaction with the screen frame 11, for example by intervention of a non-illustrated Motor pinion in a arranged on the inner circumference of the screen frame 11, not shown toothed rail causes the rotational movement of the plate-shaped resonator.
  • FIG. 2 shows a second embodiment of an apparatus for ultrasonic sieve 20 with sieve frame 21, sieve fabric 22, movable means 23 for introducing ultrasonic vibrations in the sieve fabric 22 in the form of a voltage applied to the sieve fabric 22 plate-shaped resonator, which is perpendicular to the screen fabric 22 through a center of the circular sieve frame 22nd Rotating extending axis, supply sound conductor 24 and ultrasonic converter 25.
  • the device for ultrasonic sieve 20 differs from the device for ultrasonic sieve 10 according to FIG. 1 in that a carrier 26 is arranged below the screen fabric 22, which runs along a diameter of the screen frame 21.
  • This carrier 26 in particular allows a particularly simple way to provide drive and bearing for the movable means 23 for introducing the ultrasonic vibrations in the mesh, but it usually limits the possible rotation angle to almost 180 °, so that this angle of rotation alternately swept forward and backward must become.
  • the support 26 for storage and drive, not shown, motor on the axis of rotation, on the rotor of the plate-shaped resonator 23 with fasten it to the feed sound conductor 24 and to this fasten the ultrasonic converter 25 is fixed.
  • FIG. 3 shows a third embodiment of an apparatus for ultrasonic sieve 30 with sieve frame 31, screen cloth 32, two movable means 33a, 33b for introducing ultrasonic vibrations in the form of the screen fabric 32 adjacent plate-shaped resonators which extend through a center of the circular screen frame perpendicular to the screen fabric 32 Axle are rotatable, feed sound conductor 34 and ultrasonic converter 35 and two carriers 36a, 36b.
  • the device for ultrasonic sieve 30 differs from the device for ultrasonic sieve 20 according to FIG FIG. 2 by the number of carriers 36a, 36b and the number of movable means 33a, 33b for inducing ultrasonic vibrations.
  • the mechanical stability of the device for ultrasonic sieving 30 can be increased.
  • these carriers limit the possible angular range of rotation of the movable means 33a, 33b for inducing ultrasonic vibrations in the screen cloth 33, the number of the movable means 33a, 33b must be increased in order to further ensure that at least almost every point of the Sieve fabric 32 ultrasound can be initiated.
  • FIG. 4 shows a fourth embodiment of an apparatus for ultrasonic sieve 40 with sieve frame 41, screen mesh 42 and two movable means 43a, 43b for the introduction of ultrasonic vibrations in the form of voltage applied to the screen fabric 42 plate-shaped resonators, at least in a certain angular range around one through the center of the circular screen frame perpendicular to the screen fabric 42 extending axis are rotatable and supports 46a, 46b.
  • the device for ultrasonic sieve 40 differs from the device for Ultrasonic sieves 30 according to FIG. 3 in that each of the plate-shaped resonators is assigned a separate ultrasonic converter 45a, 45b via a separate feed sound conductor 44a, 44b. This allows the provision of various ultrasonic excitations on the screen fabric 42.
  • FIG. 5 shows an embodiment of an apparatus for ultrasonic sieve 50 with an arranged on an outer wall of the screen frame converter holder 61 and a held in the converter holder 61 ultrasound converter 55, via a guided through the sieve frame 51 feed sound conductor 54 in an ultrasonic manner with the means 53 for the introduction of Ultrasonic vibrations in a screen fabric 52.
  • the means 53 for introducing ultrasonic vibrations into the screen fabric 52 which is shown only partially, have the shape of an ultrasonic grille made up of a plurality of circular rings 53a arranged on a cross-shaped support 53b, which are arranged below the screen fabric 52.
  • an ultrasonic grille made up of a plurality of circular rings 53a arranged on a cross-shaped support 53b, which are arranged below the screen fabric 52.
  • other shapes in particular square or rectangular grids and structural modifications or combinations thereof can be realized.
  • the cross-shaped support 53b is mounted in each case at the ends of the cross with mounting brackets 57 on the frame, in such a way that the means 53 for introducing ultrasonic vibrations into the screen fabric 52 at least when the device for ultrasonic sieve 50 in the powder flow of the material to be screened is arranged, in the illustrated preferred Embodiment but also outside of such a powder flow, pressure on the screen cloth 52 exerts.
  • bulges 58 ie contours of the means 53 for transmitting ultrasound into the screen fabric 52 pushed through the screen fabric 52, are shown as lines which are not directly visible in the shape of the subjacent means By means of 53 for the introduction of ultrasonic vibrations in the mesh 52 follow.
  • the question of whether an array of means 53 for inducing ultrasonic vibrations into the screen cloth 52 in such a manner that pressure is exerted on the screen cloth 52 to bulges 58 on the means 53 for introducing ultrasound into the Screen fabric 52 opposite side of the screen fabric 52 leads or does not lead from properties of the screen fabric 52 used.
  • a considerable pressure may also not cause buckling 58.
  • only in the powder flow a bulge 58 of the screen fabric 52 can be seen.
  • bulges 58a following the shape of the circular rings 53a and bulges 58b following the shape of the cross-shaped carrier 53b are recognized.
  • a preferred way to achieve an arrangement of the means 53 for introducing ultrasound into the screen fabric 52 is that the means 53 are arranged by means of the mounting bracket 57 so that it is the plane of the screen frame 51, in which the screen fabric 52 is attached , overhanging, ie to survive in the direction in operation of the flow direction of the Powder flow is opposite. It is sufficient for many applications already survive by a few tenths of a mm.
  • the mounting bracket 57 means for adjusting the position of the means 53 for introducing ultrasound into the mesh 52 relative to the plane of the screen frame 51, in which the mesh 52 is attached have. This can be done for example by providing slots or a thread in or on the mounting brackets 57, in which then engage corresponding fastening means of the means 53 for introducing ultrasound into the screen fabric 52.
  • an ultrasonic damping material such as in the FIG. 5 unrecognizable discs or rectangular plates made of silicone, rubber or similar materials are used.
  • connection using mechanical coupling elements arranged between fastening angles 57 and means 53 for introducing ultrasound into the screen cloth 52 or its fastening means, which constitute a filter for the excited frequencies.
  • decoupling elements are known from the prior art.

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  • Combined Means For Separation Of Solids (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Treatment Of Fiber Materials (AREA)
EP13718170.7A 2012-09-12 2013-04-18 Vorrichtung und verfahren zum ultraschallsieben Active EP2895277B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13718170T PL2895277T3 (pl) 2012-09-12 2013-04-18 Urządzenie i sposób ultradźwiękowego przesiewania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012108529.3A DE102012108529A1 (de) 2012-09-12 2012-09-12 Vorrichtung und Verfahren zum Ultraschallsieben
PCT/EP2013/058129 WO2014040762A1 (de) 2012-09-12 2013-04-18 Vorrichtung und verfahren zum ultraschallsieben

Publications (2)

Publication Number Publication Date
EP2895277A1 EP2895277A1 (de) 2015-07-22
EP2895277B1 true EP2895277B1 (de) 2019-06-05

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EP13718170.7A Active EP2895277B1 (de) 2012-09-12 2013-04-18 Vorrichtung und verfahren zum ultraschallsieben

Country Status (17)

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US (1) US9486835B2 (da)
EP (1) EP2895277B1 (da)
JP (1) JP6321011B2 (da)
KR (1) KR101793349B1 (da)
CN (1) CN104661765B (da)
AU (1) AU2013314635B2 (da)
BR (1) BR112015005159B1 (da)
CA (1) CA2883473C (da)
DE (1) DE102012108529A1 (da)
DK (1) DK2895277T3 (da)
IL (1) IL237239B (da)
IN (1) IN2015DN01393A (da)
MY (1) MY171523A (da)
PH (1) PH12015500447A1 (da)
PL (1) PL2895277T3 (da)
SG (1) SG11201501281XA (da)
WO (1) WO2014040762A1 (da)

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BR112017007915B1 (pt) * 2014-10-24 2021-06-29 Bühler AG Limpadores de peneira sem escova, unidade de peneira e método para aprimorar ou modificar uma caixa de peneira
NL2014210B1 (nl) * 2015-01-29 2017-01-27 Oijense Bovendijk B V Zeefinrichting en werkwijze voor het scheiden van droog korrelvormig materiaal.
DE102015114076B3 (de) * 2015-06-18 2016-05-25 assonic Mechatronics GmbH Siebsystem
WO2017092777A1 (de) * 2015-12-03 2017-06-08 Kronos International, Inc. Verfahren und vorrichtung zur verbesserten fest-flüssig-filtration von filterkuchen
CN115715267A (zh) * 2020-06-19 2023-02-24 Ao概念有限公司 具有超声波发生器的运输装置和操作方法
JP7342926B2 (ja) 2021-02-08 2023-09-12 株式会社デンソー 表示制御装置及び表示制御プログラム
CN114226229B (zh) * 2022-01-25 2022-11-22 无锡锋速钢丸有限公司 一种超声波筛分装置

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DK2895277T3 (da) 2019-08-12
IL237239B (en) 2019-08-29
CA2883473A1 (en) 2014-03-20
KR20150053910A (ko) 2015-05-19
PH12015500447B1 (en) 2015-04-27
KR101793349B1 (ko) 2017-11-02
MY171523A (en) 2019-10-16
AU2013314635A1 (en) 2015-04-02
AU2013314635B2 (en) 2017-02-23
WO2014040762A1 (de) 2014-03-20
PL2895277T3 (pl) 2019-11-29
CA2883473C (en) 2018-02-20
IN2015DN01393A (da) 2015-07-03
JP6321011B2 (ja) 2018-05-09
SG11201501281XA (en) 2015-04-29
IL237239A0 (en) 2015-04-30
EP2895277A1 (de) 2015-07-22
CN104661765B (zh) 2017-09-15
CN104661765A (zh) 2015-05-27
DE102012108529A1 (de) 2014-03-13
JP2015529559A (ja) 2015-10-08
PH12015500447A1 (en) 2015-04-27
US9486835B2 (en) 2016-11-08
BR112015005159B1 (pt) 2020-12-01
US20150239012A1 (en) 2015-08-27

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