CN1138601C - Method for activating sieve frame with ultrasounds - Google Patents
Method for activating sieve frame with ultrasounds Download PDFInfo
- Publication number
- CN1138601C CN1138601C CNB998038709A CN99803870A CN1138601C CN 1138601 C CN1138601 C CN 1138601C CN B998038709 A CNB998038709 A CN B998038709A CN 99803870 A CN99803870 A CN 99803870A CN 1138601 C CN1138601 C CN 1138601C
- Authority
- CN
- China
- Prior art keywords
- unit
- screen frame
- sieve
- sieve frame
- transmitting vibrations
- 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
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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
- B07B1/42—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
- B07B1/50—Cleaning
- B07B1/54—Cleaning with beating devices
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention concerns a method for activating a sieve frame with ultrasounds. The invention aims at developing a method for activating a sieve frame with ultrasounds, which enables the use of sieving devices with more compact structure than current known ones. Said aim is achieved by the fact that the sieve frame is activated as longitudinal oscillator. The sieve frame (1) is activated in particular via a coupling element (2) which offsets the oscillating system (4) activation axis (5) in the sieve frame (1) plane transmitting the oscillations.
Description
Technical field
The present invention relates to activate with ultrasonic wave a method of a screen frame (unit), wherein screen frame (unit) activated as longitudinal vibrator.
Background technology
It is known using ultrasonic wave to screen different article.The oscillating movement that is produced by ultrasonic wave is delivered to the surface of sieve and to the treating capacity of sieve and the screened useful effect of material production.The vibration that is delivered to screened material reduces surface tension and coagulability, thereby has greatly prevented the obstruction of screen cloth.
Use hyperacoustic known screening plant and screening technique to consist essentially of a screen frame (unit), a sieve surface is installed, and a ultrasound source is coupled on the screen frame (unit) on a ultrasonic transducer on this screen frame (unit).Converter is converted to the mechanical bend vibration with the high-frequency electrical vibration.
In WO94/27748, described that a ultrasonic transducer that adopts a sieve surface and be used for this sieve surface screens, sorting, sieved, filter or sort one of material and install and a method, wherein sieve the surface and be arranged in the screen frame (unit), and ultrasonic transducer can impel the sieve surface vibration.
Be complementary near a resonator on sieve surface and the resonance (frequency) of ultrasonic transducer, and can impel it in crooked (bending) direction vibration by the latter, this resonator be used for ultrasonic transducer.The extensional vibration that is produced by acoustic transducer is converted into the flexural vibrations of same frequency in the bar of resonator, wherein the bar of resonator is tangential on vertical setting of vibration.
FR-A-2682050 discloses a method that activates a screen frame (unit) with ultrasonic wave, wherein comes vibratory sieve with a sonotrode, and this sonotrode is directly installed under the framework with bolt.In this mode, framework is to the sieve transmitting vibrations.The direction of vibration of ultrasonic transducer meets at right angles or radially acts on the framework and form a flexural resonance device.
U.S. Pat 4062768 discloses a screening plant, and wherein a framework that is activated by a ultrasonic transducer is inserted under the sieve fabric.Ultrasonic transducer is actuated at the framework in the sieve surface.Since its length with and meet at right angles with respect to the direction of actuation of converter and linkage element, therefore the framework that is activated by ultrasonic transducer is just as a flexural resonance device.
One shortcoming of all known embodiments is large scales of bringing owing to its operation principle, makes screening plant can not have enough compact structure shapes, and wherein this operation principle must activate a flexural resonance device and vibrates.
Summary of the invention
A purpose of the present invention is to set up a method that activates screen frame (unit) by ultrasonic wave, and the structure of guaranteeing screening plant thus is compacter than known.
This purpose is finished by following method:
Screen frame (unit) is used as a longitudinal vibrator and activates on a linkage element, this screen frame (unit) is made of at least two parallel longitudinal vibrators, described two longitudinal vibrators link to each other in the peak swing direction, and the activation axis of vibrational system are arranged in the plane of transmitting vibrations of screen frame (unit) (1).Therefore, screen frame (unit) activated as the longitudinal vibrator on a linkage element, wherein screen frame (unit) is made of at least two parallel longitudinal vibrators, these two longitudinal vibrators link to each other in its peak swing direction, and the activation axis of vibrational system is moved in the plane of screen frame (unit) transmitting vibrations.
Favourable scheme of the present invention provides as follows:
The screen frame (unit) of transmitting vibrations forms annular or ellipse by even number λ/2 elements, and one of them λ/2 elements are formed by linkage element, and wherein, λ is hyperacoustic wavelength; The screen frame (unit) of transmitting vibrations constitutes rod; The annular of described transmitting vibrations, ellipse, rod screen frame (unit) are below the fabric place of sieve is arranged on sieve.
Adopt ultrasonic wave as longitudinal vibrator to activate a screen frame (unit) in mode of the present invention and can guarantee that screen frame (unit) has a more flat structure, thus beguine activate or have the screening plant that other vibration mode of the ultrasonic transducer that is provided with perpendicular to the sieve surface activates according to flexural resonance device principle compacter.
Especially, by being installed in the element place that activates by vibration (for example screen frame (unit)), can obtain a compact structure, because vibrational system is arranged under the screen frame (unit) with vibrational system being had a lateral shift.In addition,, can adopt annular (even oval) structure, especially when the activation axis of vibrational system is moved in the plane of screen frame (unit) transmitting vibrations by a linkage element for screen frame (unit).
Description of drawings
Accompanying drawing is the schematic diagram that has the annular frames of a ultrasound source.
The specific embodiment
Further describe the present invention with an annular frames below.In single accompanying drawing, show a schematic diagram of the annular frames that has a ultrasound source.
According to this schematic diagram, form a circular screen frame (unit) 1 by even number λ/2 (λ is hyperacoustic wavelength) element, λ/2 (λ the is hyperacoustic wavelength) element that forms by a linkage element 2.
Produce a hyperacoustic vibrational system 4 (ultrasonic transducer) is installed in linkage element 2 as a λ/2 (λ is hyperacoustic wavelength) longitudinal vibrator longitudinal vibrator 3 places, bottom λ/2 (λ is hyperacoustic wavelength).
The high frequency machinery extensional vibration that is produced by ultrasonic transducer 4 passes to screen frame (unit) 1 on linkage element 2, be shown in the fabric (not shown) that transmits and pass to equably sieve on the whole circumference as the II among the figure.
In the situation on large-scale sieve surface, according to the geometry on sieve surface, it may be suitable under the sieve surface several circles, ellipse or rod screen frame (unit) 1 being set, to guarantee an effective screening function.
I in the accompanying drawing is illustrated in the vibration processes in converter 4 and the linkage element 3.II represents the vibration processes in the screen frame (unit) 1, and amplitude amplitude a marks and draws with respect to vibrational coordinate x among I and the II in the accompanying drawings.At coordinate x
0All there is centre of oscillation point at the place in each situation.
Because the extensional vibration of system 4, impel to be installed in the sieve of one on the screen frame (unit) 1 and laterally to move in the mode that very is similar to the motion of in the manual screening process, sieving.Compare with the known screens screening device of prior art, the actuating on sieve surface has been offset 90 °.
The invention is not restricted to embodiment described herein, but, by combination, can realize further example and do not depart from the scope of the present invention distinguishing characteristics.Therefore, also can be advantageously in conjunction with the flexural vibrations device motion of known type in longitudinal vibrator motion of the present invention and the screen frame (unit).
Claims (4)
1. activate a method of a screen frame (unit) with ultrasonic wave, it is characterized in that: screen frame (unit) (1) is used as a longitudinal vibrator and goes up actuating in a linkage element (2), this screen frame (unit) is made of at least two parallel longitudinal vibrators (3), described two longitudinal vibrators link to each other in the peak swing direction, and the activation axis (5) of vibrational system (4) are arranged in the plane (6) of transmitting vibrations of screen frame (unit) (1).
2. the method for claim 1, it is characterized in that: the screen frame (unit) of transmitting vibrations (1) forms annular or ellipse by even number λ/2 elements, and one of them λ/2 elements are formed by linkage element (2), and wherein, λ is hyperacoustic wavelength.
3. method as claimed in claim 1 or 2 is characterized in that: the screen frame (unit) of transmitting vibrations (1) constitutes rod.
4. as each described method in the claim 1～3, it is characterized in that: the annular of described transmitting vibrations, ellipse, rod screen frame (unit) are below the fabric place of sieve is arranged at sieve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19811266A DE19811266C1 (en) | 1998-03-11 | 1998-03-11 | Method of cleaning filter frames |
| DE19811266.1 | 1998-03-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1292735A CN1292735A (en) | 2001-04-25 |
| CN1138601C true CN1138601C (en) | 2004-02-18 |
Family
ID=7861004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB998038709A Expired - Fee Related CN1138601C (en) | 1998-03-11 | 1999-03-09 | Method for activating sieve frame with ultrasounds |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1062057B1 (en) |
| JP (1) | JP2002505954A (en) |
| KR (1) | KR100462351B1 (en) |
| CN (1) | CN1138601C (en) |
| DE (2) | DE19811266C1 (en) |
| WO (1) | WO1999046061A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9822880D0 (en) * | 1998-10-21 | 1998-12-16 | Russel Finex | Improved efficiency ultrasonic sieving apparatus |
| JP2002011409A (en) * | 2000-06-30 | 2002-01-15 | Honda Electronic Co Ltd | Ultrasonic sieving device |
| US7017754B2 (en) | 2002-11-21 | 2006-03-28 | Hitachi Metals, Ltd. | Method and apparatus for classifying fine balls and method for producing cylindrical sieve |
| CN100414830C (en) * | 2003-08-26 | 2008-08-27 | 财团法人工业技术研究院 | Load adjustable surface acoustic wave actuator |
| JP4402966B2 (en) * | 2004-01-22 | 2010-01-20 | 新日本製鐵株式会社 | Ultrasonic square sieve device |
| JP4521599B2 (en) * | 2004-11-08 | 2010-08-11 | 本多電子株式会社 | Sieve device |
| JP4729385B2 (en) * | 2005-11-08 | 2011-07-20 | 株式会社村上精機工作所 | Vibrating sieve device |
| EP2067534A1 (en) * | 2007-12-05 | 2009-06-10 | Artech Systems AG | Screaning system with tube-like screan and method for operating a screaning system with tube-like screan |
| WO2016141971A1 (en) * | 2015-03-10 | 2016-09-15 | Telsonic Holding Ag | Screening system, eddy-current screening machine, and use of a screening system or of an eddy-current screening machine |
| EP3268137B1 (en) * | 2015-03-10 | 2023-11-01 | Telsonic Holding AG | Screening system, eddy-current screening machine, and use of a screening system or of an eddy-current screening machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4062768A (en) * | 1972-11-14 | 1977-12-13 | Locker Industries Limited | Sieving of materials |
| FR2682050B1 (en) * | 1991-10-08 | 1994-07-22 | Chauvin Sarl Ets | SCREENING DEVICE EQUIPPED WITH DECOLMATION MEANS. |
| DE59405272D1 (en) * | 1993-05-26 | 1998-03-26 | Telsonic Ag | DEVICE AND METHOD FOR SCREENING, CLASSIFYING, VIEWING, FILTERING OR SORTING SUBSTANCES |
| DE4418175C5 (en) * | 1993-05-26 | 2006-02-16 | Telsonic Ag | Apparatus and method for sifting, classifying, sifting, filtering or sorting fabrics |
-
1998
- 1998-03-11 DE DE19811266A patent/DE19811266C1/en not_active Revoked
-
1999
- 1999-03-09 CN CNB998038709A patent/CN1138601C/en not_active Expired - Fee Related
- 1999-03-09 DE DE59901794T patent/DE59901794D1/en not_active Expired - Fee Related
- 1999-03-09 JP JP2000535466A patent/JP2002505954A/en active Pending
- 1999-03-09 KR KR10-2000-7009997A patent/KR100462351B1/en not_active IP Right Cessation
- 1999-03-09 WO PCT/EP1999/001494 patent/WO1999046061A1/en active IP Right Grant
- 1999-03-09 EP EP99915549A patent/EP1062057B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| KR20010034570A (en) | 2001-04-25 |
| EP1062057B1 (en) | 2002-06-19 |
| WO1999046061A8 (en) | 1999-10-21 |
| WO1999046061A1 (en) | 1999-09-16 |
| CN1292735A (en) | 2001-04-25 |
| JP2002505954A (en) | 2002-02-26 |
| EP1062057A1 (en) | 2000-12-27 |
| DE19811266C1 (en) | 1999-08-05 |
| KR100462351B1 (en) | 2004-12-17 |
| DE59901794D1 (en) | 2002-07-25 |
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