EP2067534A1 - Siebsystem mit rohrförmigem Sieb und Verfahren zum Betrieb eines Siebsystems mit rohrförmigem Sieb - Google Patents

Siebsystem mit rohrförmigem Sieb und Verfahren zum Betrieb eines Siebsystems mit rohrförmigem Sieb Download PDF

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Publication number
EP2067534A1
EP2067534A1 EP07023546A EP07023546A EP2067534A1 EP 2067534 A1 EP2067534 A1 EP 2067534A1 EP 07023546 A EP07023546 A EP 07023546A EP 07023546 A EP07023546 A EP 07023546A EP 2067534 A1 EP2067534 A1 EP 2067534A1
Authority
EP
European Patent Office
Prior art keywords
screen
sieve
tube
tubular
central axis
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.)
Withdrawn
Application number
EP07023546A
Other languages
German (de)
English (en)
French (fr)
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 Systems AG
Original Assignee
Artech Systems AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Artech Systems AG filed Critical Artech Systems AG
Priority to EP07023546A priority Critical patent/EP2067534A1/de
Priority to JP2010536356A priority patent/JP5582536B2/ja
Priority to KR1020107014024A priority patent/KR101393148B1/ko
Priority to CN2008801252835A priority patent/CN101925415B/zh
Priority to DE202008017901U priority patent/DE202008017901U1/de
Priority to AT08857543T priority patent/ATE529196T1/de
Priority to US12/746,412 priority patent/US8453845B2/en
Priority to AU2008333606A priority patent/AU2008333606B2/en
Priority to DK08857543.6T priority patent/DK2217388T3/da
Priority to PCT/EP2008/009972 priority patent/WO2009071221A1/de
Priority to ES08857543T priority patent/ES2376029T3/es
Priority to CA2708019A priority patent/CA2708019C/en
Priority to EP08857543A priority patent/EP2217388B1/de
Publication of EP2067534A1 publication Critical patent/EP2067534A1/de
Withdrawn legal-status Critical Current

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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
    • B07B1/18—Drum 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

Definitions

  • the invention relates to a screening system according to the preamble of claim 1 and a method for operating a screening system according to the preamble of claim 13.
  • screening machines For this purpose, generally known screening machines are used which use screen systems which differ in particular by the design and orientation of the screens used.
  • Conventional vibratory and tumble screening machines use screens which have a screen fabric stretched in a frame and substantially planar, which is oriented substantially perpendicular to the desired direction of flow of the material. Screenings which do not fulfill the classification conditions imposed by the openings in the screen fabric remain behind in the screen; only screenings that fulfill the classification condition can leave the screen.
  • the screening system used has a tubular sieve, in the interior of which the screenings are conveyed.
  • the tubular sieve can consist of a tube with sieve openings arranged directly in the wall of the tube, but it can also be stretched by a sieve cloth, which is stretched on a sieve frame, which defines at least the length and the cross-section of a tube the screen fabric forms at least part of the surface of the tubular screen and in particular is not only arranged in one plane.
  • embodiments are also conceivable in which both a tube with screen openings and an additional screen fabric surrounding this tube are provided.
  • a tube is an elongate hollow body with an opening passing through it lengthwise and generally of cylindrical cross-section; accordingly, the adjective "tubular" describes an article having the shape of a tube as defined above.
  • the sieving action of the tubular sieve is achieved by causing a passage of the material to be sieved through the sieve openings and / or the sieve cloth forming the at least part of the tube wall.
  • One way which is used in particular at relatively low concentrations of the material to be screened, there is a inside the tubular sieve to provide the material transporting fluid flow which is provided with such a swirling, that a material transport through the screen openings and / or the screen fabric comes.
  • a so-called "racket system” i. a usually made of metal rotor linkage is provided, which is guided along the wall of the tubular screen and pushes through the screenings through the screen openings and / or the screen fabric and optionally provided radial openings of the frame structure.
  • the invention is based on the finding that excitation of a tubular screen by means of ultrasound leads to a significant increase in the throughput of screenings, when the amplitude of the ultrasonic excitation has both a component in the radial direction and a component in the axial direction of the tubular screen.
  • a screen system therefore has a tube which has at least one section (12) with screen openings arranged directly in the wall of the tube and / or a screen mesh which defines a screen frame which defines at least the length and the cross section of a tube , is stretched, so that the screen fabric forms at least a portion of the wall of the tubular screen, and at least one ultrasonic converter and at least one arranged between ultrasonic converter and the screen frame inlet conductor, wherein the tube or the screen frame by means of the ultrasonic converter and the lead scarf conductor of ultrasound excitation is suspendable and wherein the lead acoustic conductor (s) is / are configured so that the amplitude of the ultrasonic excitation transmitted to the tube or screen frame has a component in the direction perpendicular to a central axis of the tubular screen and a component parallel to the Mi has the axis of the tubular sieve.
  • both components of the amplitude of the ultrasonic excitation at a single point of contact between the feed line conductor and pipe or screen frame are transmitted. This allows a particularly cost-effective design with only one ultrasonic converter and only one feed line conductor.
  • the one feed line sound conductor has at least one curved area.
  • the angle of curvature of the curved region is above 0 degrees and at most at 90 degrees, with a bend angle of 90 degrees being most suitable for most applications.
  • a particularly robust and interference-resistant embodiment of the screen system is obtained by providing firm connections between the feed line conductor and the surface of the tube or surface of the screen frame. This can be done in particular by screwing or welding.
  • the screwing is suitable to produce such a solid connection.
  • Siebs are achieved in that the direction of the amplitude of the ultrasonic excitation, which is transmitted through different feed line conductors on the pipe or the screen frame, is different.
  • This embodiment of the invention has proven to be particularly useful when a particularly targeted adjustment of the size of the two components of the amplitude of the ultrasonic excitation is necessary.
  • tubular screen systems described herein are particularly suitable for use in centrifugal screening machines.
  • a pipe with sieve openings which are arranged directly in the wall of the tube and / or a screen fabric, which strained on a screen frame, which defines at least the length and the cross section of a tube is such that the screen fabric forms at least part of the surface of the tubular screen, the tube with the screen openings or the screen frame are excited with an ultrasonic excitation having an amplitude which is a component in the direction perpendicular to a central axis of the tubular screen and a component in a direction parallel to the central axis of the tubular screen.
  • the process can be carried out with particularly low material expenditure if the amplitude which a component has in the direction perpendicular to a central axis of the tubular sieve and a component in a direction parallel to the central axis of the tubular sieve is produced by exactly one feed line sound conductor.
  • a particularly well controllable size distribution of the two components of the vibration amplitude is achieved when the amplitude, which is a component in the direction perpendicular to a Central axis of the tubular screen and a component in the direction parallel to the central axis of the tubular screen, is produced by more than one feed line conductor.
  • FIG. 1 shows a screen system 1 with a tubular sieve 10, which in the illustrated embodiment, the shape of a hollow cylinder Has.
  • the tubular sieve 10 consists of a tube 11 having two annular end portions 111, 112, between which a cylindrical portion 113 is disposed.
  • a cylindrical portion 113 is disposed in the cylindrical region 113 .
  • the tube 11 in the cylindrical portion 113 has a plurality of reinforcing ribs 12, which are drawn dark to distinguish them from the areas with screen openings.
  • the use of two feed scarf ladders 14 and two ultrasonic converters 13 in this embodiment serves, in particular, to increase the vibrational energy transmitted to the tube 11. It has the central axis A-A.
  • the tube 11 is mechanically connected via the feed line conductors 14 with the ultrasonic converters 13.
  • the lead scarf ladder 14 are curved. As indicated by the arrows in FIG. 1 is indicated by the ultrasonic converter 13, an ultrasonic vibration with a vibration amplitude, which is directed parallel to the central axis AA, fed into the feed line conductor 14.
  • the curvature of the feed line conductor 14 causes the oscillation amplitude receives an additional, perpendicular to the central axis AA component.
  • the exact division of the components is determined by the geometric configuration of the feed line conductors 14, in particular by their curvature.
  • the ultrasonic vibration is transmitted to the tube 11.
  • the vibration caused thereby spreads via the pipe 11.
  • the longitudinal component of the amplitude of the ultrasound excitation promotes propagation of the ultrasound over the entire length of the tubular sieve, while the transverse component particularly increases the efficiency of the sieving process at any given location of the tube 11.
  • FIG. 2 shows a screening system 2 with a tubular sieve 10, which has the shape of a hollow cylinder in the illustrated embodiment.
  • the tubular sieve 10 consists of a tube 11 having two annular end portions 111, 112, between which a cylindrical portion 113 is disposed.
  • a cylindrical portion 113 is disposed in the cylindrical region 113 .
  • the tube 11 in the cylindrical portion 113 has a plurality of reinforcing ribs 12, which are drawn dark to distinguish them from the areas with screen openings.
  • the use of four feed scarf ladders 24 and four ultrasonic converters 13 in this embodiment serves, in particular, to increase the vibration energy transmitted to the tube 11.
  • the sieve system has the central axis AA.
  • the tubular sieve is surrounded by a housing 15, through which the feed line conductors 14 are guided.
  • the ultrasonic converter 13 are outside the housing and thus outside the area in which a contact with screenings would be possible arranged.
  • the tube 11 is mechanically connected via the feed line conductors 14 with the ultrasonic converters 13.
  • the lead scarf ladder 24 are in the FIG. 2 executed with two curvature areas. As based on the FIG. 1 has already been explained, is fed by the ultrasonic converter 13, an ultrasonic vibration with a vibration amplitude, which is directed parallel to the central axis AA, in the feed line conductor 24.
  • the curvature of the feed line conductor 24 causes oscillation amplitude receives an additional, perpendicular to the central axis AA component.
  • the exact division of the components is determined by the geometric configuration of the feed line conductors 24, in particular by their curvature. In the embodiment of FIG.
  • the ultrasonic vibration is transmitted to the tube 11.
  • the vibration of the tube 11 caused thereby spreads across the tube 11.
  • the longitudinal component of the amplitude of the ultrasound excitation in particular promotes a propagation of the ultrasound over the entire length of the tubular sieve, while the transverse component particularly increases the efficiency of the screening process.
  • FIG. 3 shows a screening system 3 with a tubular sieve 30.
  • the sieve 30 consists of a sieve cloth 32, and a sieve frame 31.
  • the sieve frame consists of four annular sections 311, 312, 313, 314, which define the cross section of a pipe or hollow cylinder via two also belonging to the frame connecting strips 316, 317, through which the length of the tube is given, are connected to each other.
  • the screen cloth 32 is stretched on the screen frame such that the screen cloth 32 forms at least part of the surface of the tubular screen 30. In particular, the screen cloth 32 is not arranged in one plane only.
  • FIG. 3 two ultrasonic converters 13 and two feed line conductors 34, which in FIG. 3 each have two areas of curvature.
  • the feed line conductors are connected to the screen frame 31 at contact points 315.
  • an ultrasound vibration with an oscillation amplitude which is directed parallel to the central axis AA of the tubular screen 30, is fed into the supply sound conductors 34 by the ultrasonic converters 13.
  • the curvature of the supply line conductors 34 causes oscillation amplitude receives an additional, perpendicular to the central axis AA component.
  • the ultrasonic vibration is transmitted to the screen frame 31.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Paper (AREA)
  • Threshing Machine Elements (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
EP07023546A 2007-12-05 2007-12-05 Siebsystem mit rohrförmigem Sieb und Verfahren zum Betrieb eines Siebsystems mit rohrförmigem Sieb Withdrawn EP2067534A1 (de)

Priority Applications (13)

Application Number Priority Date Filing Date Title
EP07023546A EP2067534A1 (de) 2007-12-05 2007-12-05 Siebsystem mit rohrförmigem Sieb und Verfahren zum Betrieb eines Siebsystems mit rohrförmigem Sieb
JP2010536356A JP5582536B2 (ja) 2007-12-05 2008-11-25 管状篩を備える篩システムおよび管状篩を備える篩システムの操作方法
KR1020107014024A KR101393148B1 (ko) 2007-12-05 2008-11-25 튜브형 스크린을 구비한 스크린 시스템, 이의 작동 방법 및 이를 구비한 원심 스크린 기계
CN2008801252835A CN101925415B (zh) 2007-12-05 2008-11-25 具有管形筛的筛分系统及用于操作具有管形筛的筛分系统的方法
DE202008017901U DE202008017901U1 (de) 2007-12-05 2008-11-25 Siebsystem mit rohrförmigem Sieb
AT08857543T ATE529196T1 (de) 2007-12-05 2008-11-25 Siebsystem mit rohrförmigem sieb und verfahren zum betrieb eines siebsystems mit rohrförmigem sieb
US12/746,412 US8453845B2 (en) 2007-12-05 2008-11-25 Screen system with tube-shaped screen and method for operating a screen system with tube-shaped screen
AU2008333606A AU2008333606B2 (en) 2007-12-05 2008-11-25 Screen system with tube-shaped screen and method for operating a screen system with tube-shaped screen
DK08857543.6T DK2217388T3 (da) 2007-12-05 2008-11-25 Sigtesystem med rørformet sigte og fremgangsmåde til drift af et sigtesystem med rørformet sigte
PCT/EP2008/009972 WO2009071221A1 (de) 2007-12-05 2008-11-25 Siebsystem mit rohrförmigem sieb und verfahren zum betrieb eines siebsystems mit rohrförmigen sieb
ES08857543T ES2376029T3 (es) 2007-12-05 2008-11-25 Sistema de criba con criba de forma tubular y procedimiento para el funcionamiento de un sistema de criba con criba de forma tubular.
CA2708019A CA2708019C (en) 2007-12-05 2008-11-25 Screen system with tube-shaped screen and method for operating a screen system with tube-shaped screen
EP08857543A EP2217388B1 (de) 2007-12-05 2008-11-25 Siebsystem mit rohrförmigem sieb und verfahren zum betrieb eines siebsystems mit rohrförmigem sieb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07023546A EP2067534A1 (de) 2007-12-05 2007-12-05 Siebsystem mit rohrförmigem Sieb und Verfahren zum Betrieb eines Siebsystems mit rohrförmigem Sieb

Publications (1)

Publication Number Publication Date
EP2067534A1 true EP2067534A1 (de) 2009-06-10

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ID=39315595

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07023546A Withdrawn EP2067534A1 (de) 2007-12-05 2007-12-05 Siebsystem mit rohrförmigem Sieb und Verfahren zum Betrieb eines Siebsystems mit rohrförmigem Sieb
EP08857543A Active EP2217388B1 (de) 2007-12-05 2008-11-25 Siebsystem mit rohrförmigem sieb und verfahren zum betrieb eines siebsystems mit rohrförmigem sieb

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08857543A Active EP2217388B1 (de) 2007-12-05 2008-11-25 Siebsystem mit rohrförmigem sieb und verfahren zum betrieb eines siebsystems mit rohrförmigem sieb

Country Status (12)

Country Link
US (1) US8453845B2 (zh)
EP (2) EP2067534A1 (zh)
JP (1) JP5582536B2 (zh)
KR (1) KR101393148B1 (zh)
CN (1) CN101925415B (zh)
AT (1) ATE529196T1 (zh)
AU (1) AU2008333606B2 (zh)
CA (1) CA2708019C (zh)
DE (1) DE202008017901U1 (zh)
DK (1) DK2217388T3 (zh)
ES (1) ES2376029T3 (zh)
WO (1) WO2009071221A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101925415B (zh) * 2007-12-05 2013-01-23 阿戴克系统股份公司 具有管形筛的筛分系统及用于操作具有管形筛的筛分系统的方法
WO2016142003A1 (de) * 2015-03-10 2016-09-15 Telsonic Holding Ag Siebsystem, wirbelstromsiebmaschine und verwendung eines siebsystems oder einer wirbelstromsiebmaschine
WO2016142454A3 (de) * 2015-03-10 2016-11-10 Telsonic Holding Ag Siebsystem, wirbelstromsiebmaschine und verwendung eines siebsystems oder einer wirbelstromsiebmaschine
CN112827790A (zh) * 2021-02-03 2021-05-25 济南聚永丰设备工程有限公司 一种可调振幅、倾角的回转分级筛

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DE202012101287U1 (de) 2012-04-11 2012-05-08 Stefan Beidatsch Siebsystem
DE102012104577A1 (de) 2012-05-29 2013-12-05 assonic Mechatronics GmbH Zylindersieb für eine Siebmaschine
DE202012011921U1 (de) 2012-12-13 2014-03-17 Haver & Boecker Ohg Siebeinrichtung
NL2014210B1 (nl) * 2015-01-29 2017-01-27 Oijense Bovendijk B V Zeefinrichting en werkwijze voor het scheiden van droog korrelvormig materiaal.
CN110918451B (zh) * 2019-12-17 2021-03-02 河南联合精密材料股份有限公司 一种带自动冲洗的去除异形颗粒的超声波振动过筛机

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DE19811266C1 (de) * 1998-03-11 1999-08-05 Hielscher Gmbh Verfahren zum Anregen eines Siebrahmens mit Ultraschall

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US5653346A (en) * 1993-05-26 1997-08-05 Telsonic Ag Process and device for sifting, sorting, screening, filtering or sizing substances
DE19811266C1 (de) * 1998-03-11 1999-08-05 Hielscher Gmbh Verfahren zum Anregen eines Siebrahmens mit Ultraschall

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101925415B (zh) * 2007-12-05 2013-01-23 阿戴克系统股份公司 具有管形筛的筛分系统及用于操作具有管形筛的筛分系统的方法
WO2016142003A1 (de) * 2015-03-10 2016-09-15 Telsonic Holding Ag Siebsystem, wirbelstromsiebmaschine und verwendung eines siebsystems oder einer wirbelstromsiebmaschine
WO2016141971A1 (de) * 2015-03-10 2016-09-15 Telsonic Holding Ag Siebsystem, wirbelstromsiebmaschine und verwendung eines siebsystems oder einer wirbelstromsiebmaschine
WO2016142454A3 (de) * 2015-03-10 2016-11-10 Telsonic Holding Ag Siebsystem, wirbelstromsiebmaschine und verwendung eines siebsystems oder einer wirbelstromsiebmaschine
US10413942B2 (en) 2015-03-10 2019-09-17 Telsonic Holding Ag Screening system, eddy-current screening machine, and use of a screening system or of an eddy-current screening machine
CN112827790A (zh) * 2021-02-03 2021-05-25 济南聚永丰设备工程有限公司 一种可调振幅、倾角的回转分级筛

Also Published As

Publication number Publication date
EP2217388A1 (de) 2010-08-18
CN101925415B (zh) 2013-01-23
CA2708019A1 (en) 2009-06-11
US8453845B2 (en) 2013-06-04
ATE529196T1 (de) 2011-11-15
JP5582536B2 (ja) 2014-09-03
DK2217388T3 (da) 2012-01-23
US20100258482A1 (en) 2010-10-14
KR101393148B1 (ko) 2014-05-08
KR20100106991A (ko) 2010-10-04
CA2708019C (en) 2014-07-29
EP2217388B1 (de) 2011-10-19
CN101925415A (zh) 2010-12-22
ES2376029T3 (es) 2012-03-08
AU2008333606A1 (en) 2009-06-11
JP2011505245A (ja) 2011-02-24
WO2009071221A1 (de) 2009-06-11
DE202008017901U1 (de) 2010-10-14
AU2008333606B2 (en) 2013-05-02

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