DE10054089C1 - Ultrasonic stimulation device for mechanical filter mesh has filter mesh frame combined with flexure oscillator and sound transducer for providing resonant structure - Google Patents
Ultrasonic stimulation device for mechanical filter mesh has filter mesh frame combined with flexure oscillator and sound transducer for providing resonant structureInfo
- Publication number
- DE10054089C1 DE10054089C1 DE10054089A DE10054089A DE10054089C1 DE 10054089 C1 DE10054089 C1 DE 10054089C1 DE 10054089 A DE10054089 A DE 10054089A DE 10054089 A DE10054089 A DE 10054089A DE 10054089 C1 DE10054089 C1 DE 10054089C1
- Authority
- DE
- Germany
- Prior art keywords
- filter mesh
- oscillator
- flexure
- sound transducer
- resonant structure
- 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 - Fee Related
Links
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
- B07B2230/00—Specific aspects relating to the whole B07B subclass
- B07B2230/04—The screen or the screened materials being subjected to ultrasonic vibration
Abstract
Description
Die Erfindung betrifft eine Anordnung zur Anregung eines Siebrahmens mit Ultraschall gemäß dem Oberbegriff des Anspruchs 1.The invention relates to an arrangement for excitation a screen frame with ultrasound according to the preamble of claim 1.
Es ist allgemein bekannt, zum Sieben unterschied lichster Güter Ultraschall zu verwenden. Die durch den Ultraschall erzeugten schwingenden Bewegungen werden auf die Siebfläche übertragen und üben einen günstigen Einfluß auf den Siebdurchsatz und das Siebgut aus. Die auf das Siebgut übertragenen Schwingungen bewirken eine Reduzierung der Oberflächenspannung und der Aglo merierungskräfte, so daß ein Verstopfen der Siebmaschen weitestgehend verhindert wird.It is common knowledge to distinguish between seven light goods to use ultrasound. The through the Ultrasonic vibrations are generated transferred to the screen surface and practice a cheap one Influence on the throughput and the material to be screened. The vibrations transmitted to the screenings cause a Reduction of surface tension and aglo mereration forces, so that a clogging of the mesh screen is largely prevented.
Die bekannten Ultraschall verwendenden Siebvorrich tungen und Siebverfahren bestehen im wesentlichen aus einem Siebrahmen mit einer aufgebrachten Siebfläche und einer an den Siebrahmen über einen Ultraschallwandler angekoppelten Ultraschallquelle, wobei der Wandler die hochfrequenten elektrischen Schwingungen in mechanische Biegeschwingungen umwandelt.The known screen device using ultrasound The processes and screening processes essentially consist of a sieve frame with an applied sieve surface and one to the sieve frame via an ultrasonic transducer coupled ultrasound source, the transducer high frequency electrical vibrations in mechanical Converts bending vibrations.
In der WO 94/27748 werden eine Vorrichtung und ein Verfahren zum Sieben, Klassieren, Sichten, Filtern oder Sortieren von Stoffen mit in einem Siebrahmen vorge sehener Siebfläche und dieser zugeordnetem Ultraschall- Wandler, durch den der Siebfläche Schwingungen zuleitbar sind, beschrieben. Der Ultraschallwandler ist dabei entweder radial am oder senkrecht auf dem Siebrahmen befestigt.In WO 94/27748 a device and a Methods for screening, classifying, sifting, filtering or Sorting fabrics with pre-featured in a sieve frame screen area and associated ultrasonic Transducer through which the sieve surface vibrates are described. The ultrasonic transducer is either radially on or vertically on the Screen frame attached.
Dem Ultraschallwandler ist ein der Siebfläche anliegender Resonator zugeordnet, der auf die Resonanz des Ultraschallwandlers abgestimmt und von letzterem in Biegeschwingungen versetzbar ist. Die vom Schallwandler erzeugten Longitudinalschwingungen werden in den tangential zur longitudinalen Schwingrichtung angeord neten Resonatorstäben in Biegeschwingungen der gleichen Frequenz umgeformt.The ultrasonic transducer is one of the screen surfaces adjacent resonator assigned to the resonance of the ultrasonic transducer and tuned in by the latter Bending vibrations are displaceable. The one from the transducer generated longitudinal vibrations are in the arranged tangential to the longitudinal direction of vibration neten resonator bars in bending vibrations of the same Frequency transformed.
Die Umsetzung der dadurch bedingten konstruktiven Möglichkeiten ist schwierig. Insbesondere bei mehreren übereinanderliegenden Siebflächen (Siebtürme) wird die Höhe unbefriedigend hoch.The implementation of the resulting constructive Possibilities are difficult. Especially with several the superimposed sieve surfaces (sieve towers) Unsatisfactory height.
Nachteilig ist bei allen diesen bekannten Ausführungs formen, daß die aus dem Anschwingungsprinzip "Biege schwinger" sich ergebenden großen Abmessungen keine ausreichend kompakte Bauform der Siebvorrichtung ermöglichen.A disadvantage of all these known execution shape that from the oscillation principle "Biege resulting large dimensions none sufficiently compact design of the screening device enable.
Eine kompakte Bauform wird durch die Anwendung des Anschwingungsprinzips "Längsschwinger" in der DE 198 28 914 A1 und in der DE 198 11 266 C1 erreicht.A compact design is achieved by using the Vibration principle "longitudinal oscillator" in DE 198 28 914 A1 and achieved in DE 198 11 266 C1.
Nachteilig ist es bei allen bekannten Ultraschall- Siebeinrichtungen, dass die Ultraschalleinheit innerhalb der Siebanordnung liegt und das Siebgut erwärmt. Bei einigen Siebgütern kann es zu unzulässigen Erwärmungen kommen, so dass besondere Maßnahmen zur Wärmeableitung vorgesehen werden müssen. It is disadvantageous with all known ultrasound Screening devices that the ultrasonic unit lies within the sieve arrangement and the material to be sieved heated. With some screenings it may be too inadmissible Warmings come, so special measures to Heat dissipation must be provided.
Bei einigen Siebanordnungen ist die Siebfläche mit der Ultraschalleinheit verklebt. Dadurch muß beim Siebwechsel die Klebung zerstört und aufwendig erneuert werden.With some sieve arrangements, the sieve surface is with the Ultrasound unit glued. As a result, the Changing the screen destroys the adhesive and renews it with great effort become.
Aufgabe der Erfindung ist es, eine Anordnung zum Anregen von Siebrahmen mittels Ultraschall zu entwickeln, mit welcher die bekannten Nachteile des Standes der Technik vermieden werden und mit der eine kompaktere Bauart von Siebvorrichtungen als bisher bekannt, insbesondere in der Höhe, gewährleistet wird, und bei der ein ausreichender Abstand des Schallwandlers vom Siebgut erreicht wird, um unzulässige Erwärmungen des Siebgutes auszuschließen.The object of the invention is an arrangement for Excitation of sieve frames using ultrasound develop with which the known disadvantages of State of the art can be avoided and with one more compact design of screening devices than before known, especially in the amount, is guaranteed and with a sufficient distance of the Sound converter is reached by the screenings to rule out impermissible heating of the screenings.
Die Lösung dieser Aufgabe ergibt sich aus den Merkmalen des Anspruchs 1. Zweckmäßige Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.The solution to this problem results from the features of claim 1. Appropriate configurations of Invention are specified in the subclaims.
Die Anordnung zur Anregung eines Siebrahmens mit Ultraschall ist dadurch gekennzeichnet, dass an den Siebrahmen mindestens ein Biegeschwinger angeordnet ist, der durch einen Schallwandler vorwiegend im Schwingungsmaximum angeregt wird und die Biegeschwingungen an seinem einen Ende auf den Siebrahmen vorwiegend vertikal derart überträgt, daß Siebrahmen, Biegeschwinger und Schallwandler eine resonante Struktur bilden.The arrangement for excitation of a sieve frame with Ultrasound is characterized in that at the Sieve frame arranged at least one bending vibrator is, which is mainly due to a sound transducer Vibration maximum is excited and the Bending vibrations at one end on the Screen frame mainly transmits vertically such that Sieve frames, bending vibrators and sound transducers form resonant structure.
Die vorwiegend vertikale Anregung eines Siebrahmens mit Ultraschall mit als Biegeschwinger am Siebrahmen angebrachter Ultraschallwandlereinheit gewährleistet eine flachere und damit kompaktere Bauart von Siebrahmen als bei den bisher bekannten Siebvorrichtungen.The predominantly vertical excitation of a screen frame with Ultrasound as a bending vibrator on the screen frame attached ultrasound transducer unit guaranteed a flatter and therefore more compact type of Screen frame than in the previously known Screening devices.
Eine unzulässige Erwärmung von wärmeempfindlichem Siebgut kann ausgeschlossen werden, da der Ultraschallwandler sich in ausreichendem Abstand von der Siebeinrichtung und vom Siebgut befindet.Inadmissible heating of heat sensitive Screenings can be excluded as the Ultrasonic transducers are at a sufficient distance from the screening device and the screenings.
Die Erfindung wird nachfolgend in einem Ausführungsbeispiel eines ringförmigen Siebrahmens näher erläutert. In der einzigen Figur ist in einer schematischen Darstellung der ringförmige Siebrahmen mit dem Ultraschall-Wandler dargestellt.The invention is in one Embodiment of an annular sieve frame explained in more detail. In the single figure is in one schematic representation of the annular sieve frame represented with the ultrasonic transducer.
Entsprechend der Darstellung in der Figur ist ein kreisförmiger Siebrahmen 1 aus einem ganzzahligen Vielfachen von λ/2-Elementen gebildet. Auf den Siebrahmen 1 ist in der Ebene der Siebfläche 2 ein aus n × λ/2-Elementen bestehender Biegeschwinger 4 angebracht, der durch einen Schallwandler 3 vorwiegend im Schwingungsmaximum angeregt wird. Die Biegeschwingung wird an einem Ende des Biegeschwingers 4, also im Maximum der Schwingung, auf den Siebrahmen 1 übertragen.As shown in the figure, a circular sieve frame 1 is formed from an integer multiple of λ / 2 elements. A bending oscillator 4 consisting of n × λ / 2 elements is attached to the sieve frame 1 in the plane of the sieve surface 2 and is excited by a sound transducer 3 predominantly at the maximum vibration. The bending vibration is transmitted to the screen frame 1 at one end of the bending vibrator 4 , that is to say at the maximum of the vibration.
Der Biegeschwinger 4 ist mit dem Siebrahmen 1, der kreisförmig, elliptisch, rechteckig oder als Vieleck ausgebildet sein kann, verschweißt oder verschraubt.The bending oscillator 4 is welded or screwed to the sieve frame 1 , which can be circular, elliptical, rectangular or a polygon.
Der günstigste Frequenzbereich für die Anordnung liegt zwischen 18 und 60 kHz und bei Ultraschallamplituden im Bereich zwischen 2 und 50 µm. The most favorable frequency range for the arrangement lies between 18 and 60 kHz and with ultrasonic amplitudes in Range between 2 and 50 µm.
11
Siebrahmen
screen frame
22
Siebfläche
Screen area
33
Ultraschallwandler
ultrasound transducer
44
Biegeschwinger
oscillating U
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10054089A DE10054089C1 (en) | 2000-11-01 | 2000-11-01 | Ultrasonic stimulation device for mechanical filter mesh has filter mesh frame combined with flexure oscillator and sound transducer for providing resonant structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10054089A DE10054089C1 (en) | 2000-11-01 | 2000-11-01 | Ultrasonic stimulation device for mechanical filter mesh has filter mesh frame combined with flexure oscillator and sound transducer for providing resonant structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10054089C1 true DE10054089C1 (en) | 2002-07-18 |
Family
ID=7661759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE10054089A Expired - Fee Related DE10054089C1 (en) | 2000-11-01 | 2000-11-01 | Ultrasonic stimulation device for mechanical filter mesh has filter mesh frame combined with flexure oscillator and sound transducer for providing resonant structure |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10054089C1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1689519A1 (en) * | 2003-08-28 | 2006-08-16 | Tekna Plasma Systems Inc. | Process for the synthesis, separation and purification of powder materials |
| FR2979262A1 (en) * | 2011-08-30 | 2013-03-01 | Meur Jean-Pierre Le | DEVICE AND METHOD FOR SEPARATING PRODUCTS |
| WO2014031565A3 (en) * | 2012-08-21 | 2014-05-08 | Avery Dennison Corporation | Systems and methods for making porous films, fibers, spheres, and other articles |
| US9353235B1 (en) | 2014-12-31 | 2016-05-31 | Vertera, Inc. | Medical device with porous surface and method for producing same |
| US9498922B2 (en) | 2014-06-26 | 2016-11-22 | Vertera, Inc. | Apparatus and process for producing porous devices |
| US9504550B2 (en) | 2014-06-26 | 2016-11-29 | Vertera, Inc. | Porous devices and processes for producing same |
| US9517593B2 (en) | 2014-06-26 | 2016-12-13 | Vertera, Inc. | Apparatus and process for producing porous devices |
| US9790343B2 (en) | 2008-06-12 | 2017-10-17 | Avery Dennison Corporation | Porous material and method for producing the same |
| USD815281S1 (en) | 2015-06-23 | 2018-04-10 | Vertera, Inc. | Cervical interbody fusion device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4418175A1 (en) * | 1993-05-26 | 1994-12-01 | Telsonic Ag | Device and method for sieving, classifying, sifting, filtering or sorting materials |
| WO1994027748A1 (en) * | 1993-05-26 | 1994-12-08 | Telsonic Ag | Process and device for sifting, sorting, screening, filtering or sizing substances |
| DE19828914A1 (en) * | 1998-06-18 | 1999-12-23 | Hielscher Gmbh | Filtering, separating or sizing powdered or granulated material by ultrasonic means |
-
2000
- 2000-11-01 DE DE10054089A patent/DE10054089C1/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4418175A1 (en) * | 1993-05-26 | 1994-12-01 | Telsonic Ag | Device and method for sieving, classifying, sifting, filtering or sorting materials |
| WO1994027748A1 (en) * | 1993-05-26 | 1994-12-08 | Telsonic Ag | Process and device for sifting, sorting, screening, filtering or sizing substances |
| DE19828914A1 (en) * | 1998-06-18 | 1999-12-23 | Hielscher Gmbh | Filtering, separating or sizing powdered or granulated material by ultrasonic means |
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1689519A4 (en) * | 2003-08-28 | 2011-03-16 | Tekna Plasma Systems Inc | Process for the synthesis, separation and purification of powder materials |
| EP1689519A1 (en) * | 2003-08-28 | 2006-08-16 | Tekna Plasma Systems Inc. | Process for the synthesis, separation and purification of powder materials |
| US9790343B2 (en) | 2008-06-12 | 2017-10-17 | Avery Dennison Corporation | Porous material and method for producing the same |
| US11168195B2 (en) | 2008-06-12 | 2021-11-09 | Avery Dennison Corporation | Porous material and method for producing the same |
| FR2979262A1 (en) * | 2011-08-30 | 2013-03-01 | Meur Jean-Pierre Le | DEVICE AND METHOD FOR SEPARATING PRODUCTS |
| WO2013029972A1 (en) * | 2011-08-30 | 2013-03-07 | Le Meur Jean-Pierre | Method and device for separating products |
| WO2014031565A3 (en) * | 2012-08-21 | 2014-05-08 | Avery Dennison Corporation | Systems and methods for making porous films, fibers, spheres, and other articles |
| CN104755183A (en) * | 2012-08-21 | 2015-07-01 | 艾利丹尼森公司 | Systems and methods for making porous films, fibers, spheres, and other articles |
| US11780175B2 (en) | 2012-08-21 | 2023-10-10 | Nuvasive, Inc. | Systems and methods for making porous films, fibers, spheres, and other articles |
| US10569479B2 (en) | 2012-08-21 | 2020-02-25 | Vertera, Inc. | Systems and methods for making porous films, fibers, spheres, and other articles |
| US10786344B2 (en) | 2014-06-26 | 2020-09-29 | Vertera, Inc. | Porous devices and processes for producing same |
| US10507606B2 (en) | 2014-06-26 | 2019-12-17 | Vertera, Inc. | Mold and process for producing porous devices |
| US11772306B2 (en) | 2014-06-26 | 2023-10-03 | Nuvasive, Inc. | Method for producing porous devices |
| US9848973B2 (en) | 2014-06-26 | 2017-12-26 | Vertera, Inc | Porous devices and processes for producing same |
| US11672637B2 (en) | 2014-06-26 | 2023-06-13 | Nuvasive, Inc. | Porous devices and processes for producing same |
| US9908296B2 (en) | 2014-06-26 | 2018-03-06 | Vertera Spine | Apparatus and process for producing porous devices |
| US11298217B2 (en) | 2014-06-26 | 2022-04-12 | Vertera, Inc. | Porous devices and processes for producing same |
| US10226883B2 (en) | 2014-06-26 | 2019-03-12 | Vertera, Inc. | Mold and process for producing porous devices |
| US10405962B2 (en) | 2014-06-26 | 2019-09-10 | Vertera, Inc. | Porous devices and methods of producing the same |
| US9764502B2 (en) | 2014-06-26 | 2017-09-19 | Vertera, Inc. | Apparatus and process for producing porous devices |
| US9517593B2 (en) | 2014-06-26 | 2016-12-13 | Vertera, Inc. | Apparatus and process for producing porous devices |
| US9504550B2 (en) | 2014-06-26 | 2016-11-29 | Vertera, Inc. | Porous devices and processes for producing same |
| US11090843B2 (en) | 2014-06-26 | 2021-08-17 | Vertera, Inc. | Method for producing porous devices |
| US9498922B2 (en) | 2014-06-26 | 2016-11-22 | Vertera, Inc. | Apparatus and process for producing porous devices |
| US9855709B2 (en) | 2014-12-31 | 2018-01-02 | Vertera, Inc. | Method for producing porous device |
| US9622847B2 (en) | 2014-12-31 | 2017-04-18 | Vertera, Inc. | Method for producing porous device |
| US9353235B1 (en) | 2014-12-31 | 2016-05-31 | Vertera, Inc. | Medical device with porous surface and method for producing same |
| USD944990S1 (en) | 2015-06-23 | 2022-03-01 | Vertera, Inc. | Cervical interbody fusion device |
| USD815281S1 (en) | 2015-06-23 | 2018-04-10 | Vertera, Inc. | Cervical interbody fusion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8100 | Publication of the examined application without publication of unexamined application | ||
| D1 | Grant (no unexamined application published) patent law 81 | ||
| 8363 | Opposition against the patent | ||
| 8368 | Opposition refused due to inadmissibility | ||
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20120601 |