WO1999010111A1 - Verfahren und vorrichtung zur vibrationsaussiebung - Google Patents
Verfahren und vorrichtung zur vibrationsaussiebung Download PDFInfo
- Publication number
- WO1999010111A1 WO1999010111A1 PCT/EP1998/005421 EP9805421W WO9910111A1 WO 1999010111 A1 WO1999010111 A1 WO 1999010111A1 EP 9805421 W EP9805421 W EP 9805421W WO 9910111 A1 WO9910111 A1 WO 9910111A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frame
- sieve
- screen
- fabric
- screening
- Prior art date
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
- B07B1/46—Constructional details of screens in general; Cleaning or heating of 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
Definitions
- the invention relates to a method for sieving bulk goods and liquids, in particular also powder coating particles, and a device for carrying out the method.
- Bulk goods can be, for example, granules, powders and lacquers.
- the resulting coarse-grained material is ground and then subjected to a screening process, e.g. to remove unwanted oversize particles and contaminants.
- Ultrasound frequency can be excited.
- eddy current screens, wobble screens, vibration wobble screens and turbo screens are known.
- the material to be sieved is in a sieve hose and is pressed against the sieve fabric by a vortex movement.
- smearing can occur, particularly in the case of fine-grained material, and this can impede the screening process.
- the screens used are set in motion, for example with electromagnetic drives.
- the tumbler sieves work with firmly clamped sieves, which have to be stretched over the sieve frame with great effort.
- ultrasound By applying ultrasound, an additional vibration-like movement of the screen fabric can be generated.
- the screen fabric heats up, which means that the screen fabric can become clogged, particularly in the case of fine-grained material that tends to smear.
- DD-A 227 891 and DD-A 270 476 spray booths for powder coating workpieces are described in which the booth bottom is designed as a vibrating sieve bottom.
- the sieve insert of this base can for example have a diameter of 200 mm and a sieve mesh width of 200 ⁇ m.
- An external vibration motor serves as the drive.
- the maximum amplitude of the sieving process has a value of 0.2 mm, the vibration being infinitely variable.
- a similar principle is also described, for example, in EP-A-0 611 605.
- the screening devices described are installed as a compact unit directly in the spray booth and are used for the preparation and recycling of powder overspray.
- the sieve trays require a complex construction to enable the required angle of inclination. They are not suitable for mobile use.
- This object is achieved by a technically simplified process for protective screening and classification, which is characterized in that the Seven sieve fabrics used are held in a loose sieve covering and can rest on a vibrating strut during the sieving process.
- An object of the invention is therefore a method for sieving by vibration sieving, which is characterized in that a sieve fabric is used which is loosely placed on a sieve frame and fixed with a tenter frame, the sieve fabric additionally on a bracing which vibrates with the sieve fabric can rest.
- the screen fabric With a common drive, e.g. a pneumatic, electrical and / or hydraulic drive, the screen fabric can be set in a vibration-like movement. At the same time as the screen mesh, the bracing also vibrates.
- a bulk material applied to the screen fabric for example powder coating particles, or a liquid material e.g. An aqueous dispersion or suspension can be created in the desired manner by the vibration movement of the sieve fabric and bracing
- the protective screening or classification is carried out by a loose screen covering.
- a loose sieve covering means that the sieve fabric lies loosely over a sieve frame and is loosely fixed on the sieve frame by a tensioning frame.
- the tenter frame is simply placed over the screen fabric resting on the screen frame and fixed between the screen and chipboard frame.
- Such loose covering is only intended to prevent the mesh from slipping.
- An additional firm bracing of the screen fabric by, for example, additional lateral forces acting on the screen fabric is not necessary.
- the vibrating bracing according to the invention on which the screen fabric can rest during the screening process, is preferably integrated in the screen frame.
- the strut can, for example in the form of bars or grids, be attached to the screen frame in any manner, for example parallel or diagonally, and consist of any material. It can also be located as an independent component between the screen fabric and screen frame, the screen fabric preferably being located above the strut.
- the vibrating bracing is constructed and arranged in such a way that there is no impediment to the screening process and therefore no impairment of the screening performance, but rather an intensification of the screening process and an increase in the screening performance.
- the strut is preferably located under the screen fabric
- Sieve frame installed as a parallel to the sieve frame or in the form of several rods.
- the screen fabric preferably lies on the strut during the screening process.
- the drive that can be used is connected to the sieve device via suitable devices.
- An electrically controllable drive is preferably used, for example an unbalance motor.
- the frequency of the movement can be regulated via a potentiometer and can e.g. are in a range from greater than 0 to 480 Hz.
- the electric drive is preferably controlled continuously.
- Another object of the invention is a device for vibration screening, which is suitable for carrying out the inventive method and is characterized in that it has a screen fabric loosely placed on a screen frame and fixed with a frame (hereinafter referred to as a tenter frame), which can rest on a strut that is designed so that it can vibrate with the screen fabric.
- the stenter only serves the purpose To keep sieve fabric on the sieve frame without tensioning the
- the device according to the invention can in particular consist of a holder, a
- a cover (2) is attached to a holder (1) and has devices for the product supply (3) and the discharge (4).
- the cover (2) connected to the holder (1) is connected to the support frame (11) via vibrating metals (10).
- Figure II shows the holder (1) with corresponding locking devices, e.g. Locking tensioner with hinges (12) for the lid (2).
- the sieve unit consisting of the sieve frame (6), with the vibrating strut (13), the sieve fabric (7) and the tensioning frame (8), is placed in the holder (1).
- a seal (9) is placed on the holder (1) before the holder (1) with the sieve unit located in it is closed by the cover (2).
- the holder (1) can be used with a funnel and this in turn with a Collection containers of any type and size can be connected or arranged above this.
- the funnel can have a smooth surface or grooves, grooves or similar structures in the direction of the tapering funnel opening for guiding the screened material.
- the holder (1) can also be connected to or arranged above any other conventional filling or collecting device.
- the cover (2) located on the holder (1) is connected to it in a closing manner. This can be done by corresponding conventional mechanical closures, for example closure clamps, hooks, screw connections and the like. In addition, closing the bracket (1) with the lid
- a seal (9) made of conventional material, which for example can have a thickness of 2 to 3 mm and can be self-adhesive.
- the lid (2) is equipped with devices for the product feed (3), the discharge (4) and the drive (5).
- the product feed (3) can consist of an opening in the lid (2) of any size and shape and can be located anywhere on the lid (2).
- the discharge (4) is used to remove unwanted screenings. This can be, for example, powder material with an undesirable grain size, the so-called "coarse grain” or impurities. Furthermore, in the case of sieving liquid materials, e.g. of aqueous dispersions and suspensions, impurities occur as unwanted screenings.
- the discharge (4) is preferably located on the opposite side of the device for the product feed
- the vibration drive (5) on the cover (2) can be, for example, feeds for the usual, pneumatic, electrical and / or hydraulic drive.
- the drive (5) can also be attached directly to the cover (2) or at another location of the device according to the invention.
- An electric drive is preferably used, in particular an unbalance motor. This can preferably be slidable directly on the lid (2), for example on a sliding plate, which in turn is attached to the lid (2).
- the holder (1) contains the sieve frame (6), the sieve fabric (7) and the stenter frame (8).
- the sieve frame (6) serves to hold the sieve fabric (7) which is loosely placed over it. With the stenter (8) the sieve fabric
- the sieve frame (6) can have a vibrating strut (13) on which the sieve fabric (7) can rest during the sieving process.
- Bracing (13) can, as explained above, also as an additional element between
- Screen frame (6) and screen fabric (7) must be installed. It can consist, for example, of one or more bars diagonally or parallel to the sieve frame (6) or of grid-shaped grids.
- the strut is preferably located on the sieve frame (6) in the form of 1 to 2 rods arranged parallel to the frame.
- the sieve frame (6), the strut (13) and the Sparira frame (8) can be made of any material. They are preferably made of metal.
- the screen fabric can have any mesh size, depending on the requirements for the screening.
- the mesh size can be up to 100 ⁇ m or 200 ⁇ m.
- the material of the screen fabric can be, for example, metal, plastic or textile material, mixed fabrics are also possible. Stainless steel or plastic screen fabrics are preferably used.
- the sieve insert consisting of sieve frame (6), sieve fabric (7) and stenter frame (8) can vary in diameter and any according to the requirements
- the lid (2) and the holder (1) according to the invention can be adapted according to the shape of the sieve insert.
- areas of 0.1 to 1.5 m 2 can be selected as active screen areas.
- smaller or larger formats can also be selected.
- the cover (2) which can be firmly connected to the holder (1) can be connected to a carrying frame (11) via movable connecting pieces (10).
- Connecting pieces (10) represent vibrating bodies which do not hinder the wave-like movement of the sieving process.
- These vibrating bodies can be, for example, vibrating metals, recirculating ball units or rubber sleeves.
- Suspensions can also be used, for example by using tension or compression springs on the support frame (11). Vibrating metals are preferably used.
- the support frame (11) is used for the permanent installation of the device according to the invention, for example on the wall or ceiling of the production room.
- the support frame (11) with the connected sieve unit can also move freely, e.g. on rolls, be designed so that the screening device according to the invention can be used spatially independently, depending on local requirements.
- the sieve unit consisting of sieve frame (6), sieve fabric (7), and tensioning frame (8) and optionally the seal (9) is placed in the holder (1) and closed by the cover (2).
- the material to be screened is introduced by the product feed (3).
- the sieve unit with the one in the Sieve unit (7) and the vibrating strut (13) located in the sieve are set in a vibration-like movement by the drive (5) and the material located on the sieve cloth is thereby moved and fractionated according to the selected sieve mesh size.
- the screenings collect, for example, in a collection container.
- the vibration-like movement of the sieve unit also causes the sieve material, in particular the bulk material, to move on the sieve fabric (7) in a certain direction.
- the direction of movement of the screened material can be controlled by the mode of operation of the drive (5).
- the mode of operation of the drive (5) Preferably the
- a complete removal of the remaining sieve material from the surface of the sieve fabric can be achieved by the movement of the sieve fabric generated.
- This "self-cleaning effect” can increase proportionally by suitably controlling the movement via the drive (5).
- the drive (5) on the cover (2) can be used for this purpose
- Sliding plate can be moved.
- bulk goods of any type and shape in particular can be sieved. They are particularly suitable for screening powder coating particles.
- a screening process is made possible, which is both a
- Classification of the powder material to be screened also enables separation of impurities (protective screening).
- liquid materials e.g. aqueous dispersions or suspensions
- Bulk materials for example powder particles and in particular powder coating particles, can result in the desired particle size with a high sieving rate.
- specific sieving capacities can be achieved under production conditions of more than 1800 kg / hm 2 for problematic powder coating products, such as matt
- Structural powder coating is a specific sieving capacity of greater than 1000 kg / hm 2 in
- the screening process according to the invention enables periodically effective cleaning of the screen covering. For example, the cleaning time when changing products is only about 20 to 25% compared to conventional screening processes.
- the sieve device according to the invention can be disassembled, cleaned and assembled in a very short time without technical aids. By manually inserting the screen fabric (7) between the screen frame (6) and clamping frame (8), an easy-to-use fixation of the screen fabric (7) is achieved without additional firm tensioning of the
- the standard screening machines are company products as they are offered according to the current state of the art for the screening of powder coatings in particular.
- the active screen area is the screen area actually available for the screening process.
- the specific sieving capacity results from the ratio of active sieving area and sieving capacity for a given mesh size.
- sieving using the invention enables a higher specific sieving performance to be achieved while simultaneously reducing energy consumption and the costs for cleaning and renewing sieve machine parts.
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Crushing And Grinding (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Extraction Or Liquid Replacement (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98951318A EP1007229B1 (de) | 1997-08-26 | 1998-08-26 | Verfahren und vorrichtung zur vibrationsaussiebung |
US09/486,275 US6286687B1 (en) | 1997-08-26 | 1998-08-26 | Method and device for vibration screening |
BR9811414-0A BR9811414A (pt) | 1997-08-26 | 1998-08-26 | Processo e dispositivo para peneiramento por vibração |
DE59803991T DE59803991D1 (de) | 1997-08-26 | 1998-08-26 | Verfahren und vorrichtung zur vibrationsaussiebung |
AU97392/98A AU737025B2 (en) | 1997-08-26 | 1998-08-26 | Method and apparatus for vibration screening |
AT98951318T ATE216926T1 (de) | 1997-08-26 | 1998-08-26 | Verfahren und vorrichtung zur vibrationsaussiebung |
DK98951318T DK1007229T3 (da) | 1997-08-26 | 1998-08-26 | Fremgangsmåde ved vibrationsfrasigtning og indretning til udøvelse af fremgangsmåden |
MXPA00002029A MXPA00002029A (es) | 1997-08-26 | 1998-08-26 | Metodo y aparato para tamizar por vibracion. |
CA002302514A CA2302514A1 (en) | 1997-08-26 | 1998-08-26 | Method and device for vibration screening |
JP2000507485A JP2001513442A (ja) | 1997-08-26 | 1998-08-26 | 振動スクリーニング方法および装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19737093.4 | 1997-08-26 | ||
DE19737093A DE19737093A1 (de) | 1997-08-26 | 1997-08-26 | Hochleistungs-Unwucht-Siebmaschine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999010111A1 true WO1999010111A1 (de) | 1999-03-04 |
Family
ID=7840188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1998/005421 WO1999010111A1 (de) | 1997-08-26 | 1998-08-26 | Verfahren und vorrichtung zur vibrationsaussiebung |
Country Status (14)
Country | Link |
---|---|
US (1) | US6286687B1 (de) |
EP (1) | EP1007229B1 (de) |
JP (1) | JP2001513442A (de) |
CN (1) | CN1277567A (de) |
AT (1) | ATE216926T1 (de) |
AU (1) | AU737025B2 (de) |
BR (1) | BR9811414A (de) |
CA (1) | CA2302514A1 (de) |
DE (2) | DE19737093A1 (de) |
DK (1) | DK1007229T3 (de) |
ES (1) | ES2177071T3 (de) |
MX (1) | MXPA00002029A (de) |
PT (1) | PT1007229E (de) |
WO (1) | WO1999010111A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005024854B3 (de) * | 2005-05-31 | 2006-09-14 | Dürr Systems GmbH | Beschichtungspulver-Siebeinrichtung |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004281372A (ja) * | 2002-10-09 | 2004-10-07 | Wilson Greatbatch Technologies Inc | 電極粒子を均一に分配するための装置及びその方法 |
US20050031873A1 (en) * | 2003-08-04 | 2005-02-10 | Guenter Berschel | Method for multi-coat refinishing of substrates |
NO326594B1 (no) * | 2005-03-18 | 2009-01-19 | Cubility As | Siktapparat og fremgangsmate ved bruk av samme |
JP4992341B2 (ja) * | 2005-08-23 | 2012-08-08 | 三菱化学株式会社 | 静電荷像現像用トナーの製造方法及び篩装置 |
CN101209447A (zh) * | 2006-12-25 | 2008-07-02 | 李光淳 | 封闭式药筛 |
EP2135686B1 (de) * | 2008-06-16 | 2014-10-29 | M-I L.L.C. | Laminierte Siebe |
CN103084330A (zh) * | 2011-11-01 | 2013-05-08 | 四川汇利实业有限公司 | 一种可防尘的药粉筛选机 |
KR101336008B1 (ko) | 2012-03-07 | 2013-12-03 | 이화자 | 진동 선별기의 원료선별장치 |
DE102017000697A1 (de) | 2017-01-26 | 2018-07-26 | Stefan Krüger | Vorrichtung und Verfahren zur Gewinnung von feinen Schwergutfeinpartikeln hoher Dichte (> 5 g/cm³) in Anlagen zur Förderung von Sanden und Kiesen |
CN107321644A (zh) * | 2017-08-29 | 2017-11-07 | 安徽三和电力技术有限公司 | 具有颗粒尺寸筛分功能装置的色选机 |
CN107716936A (zh) * | 2017-10-26 | 2018-02-23 | 谢晓燕 | 一种粉末冶金制粉装置 |
CN110216067A (zh) * | 2019-05-21 | 2019-09-10 | 南京金陵化工厂有限责任公司 | 一种复合稳定剂生产用筛选装置及筛选方法 |
TW202232542A (zh) | 2020-09-30 | 2022-08-16 | 美商Ncx公司 | 清潔場發射陰極裝置方法及系統 |
CN112452402B (zh) * | 2020-11-06 | 2022-09-06 | 方志文 | 一种艾绒加工用辅助筛选装置 |
CN114084388B (zh) * | 2021-11-22 | 2023-03-24 | 湛江港(集团)股份有限公司 | 一种防物料粘连的硫酸钾钙镁灌包用供料系统 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD270476A1 (de) * | 1988-04-14 | 1989-08-02 | Oranienburg Infrarot Veb | Vorrichtung zur pulverbeschichtung von werkstuecken |
DE19534629A1 (de) * | 1995-09-18 | 1997-03-20 | Cyrus Gmbh Schwingtechnik | Schwingsieb |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1107243A (en) * | 1977-09-13 | 1981-08-18 | Anthony J. Kent | Spring-loaded screen clamping system in a vibratory sifting machine |
US5037536A (en) * | 1990-03-21 | 1991-08-06 | Key Technology, Inc. | Vibratory conveying and separating apparatus and related clamping device |
GB9302936D0 (en) | 1993-02-13 | 1993-03-31 | Britton Roger W | Coating system |
-
1997
- 1997-08-26 DE DE19737093A patent/DE19737093A1/de not_active Withdrawn
-
1998
- 1998-08-26 AU AU97392/98A patent/AU737025B2/en not_active Ceased
- 1998-08-26 BR BR9811414-0A patent/BR9811414A/pt active Search and Examination
- 1998-08-26 JP JP2000507485A patent/JP2001513442A/ja not_active Abandoned
- 1998-08-26 AT AT98951318T patent/ATE216926T1/de not_active IP Right Cessation
- 1998-08-26 CN CN98810526A patent/CN1277567A/zh active Pending
- 1998-08-26 WO PCT/EP1998/005421 patent/WO1999010111A1/de active IP Right Grant
- 1998-08-26 MX MXPA00002029A patent/MXPA00002029A/es unknown
- 1998-08-26 EP EP98951318A patent/EP1007229B1/de not_active Expired - Lifetime
- 1998-08-26 DE DE59803991T patent/DE59803991D1/de not_active Expired - Fee Related
- 1998-08-26 DK DK98951318T patent/DK1007229T3/da active
- 1998-08-26 US US09/486,275 patent/US6286687B1/en not_active Expired - Fee Related
- 1998-08-26 ES ES98951318T patent/ES2177071T3/es not_active Expired - Lifetime
- 1998-08-26 PT PT98951318T patent/PT1007229E/pt unknown
- 1998-08-26 CA CA002302514A patent/CA2302514A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD270476A1 (de) * | 1988-04-14 | 1989-08-02 | Oranienburg Infrarot Veb | Vorrichtung zur pulverbeschichtung von werkstuecken |
DE19534629A1 (de) * | 1995-09-18 | 1997-03-20 | Cyrus Gmbh Schwingtechnik | Schwingsieb |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005024854B3 (de) * | 2005-05-31 | 2006-09-14 | Dürr Systems GmbH | Beschichtungspulver-Siebeinrichtung |
EP1731230A1 (de) | 2005-05-31 | 2006-12-13 | Dürr Systems GmbH | Beschichtungspulver-Siebeinrichtung |
Also Published As
Publication number | Publication date |
---|---|
JP2001513442A (ja) | 2001-09-04 |
US6286687B1 (en) | 2001-09-11 |
CA2302514A1 (en) | 1999-03-04 |
CN1277567A (zh) | 2000-12-20 |
BR9811414A (pt) | 2000-08-22 |
DK1007229T3 (da) | 2002-07-08 |
MXPA00002029A (es) | 2004-10-14 |
EP1007229A1 (de) | 2000-06-14 |
AU9739298A (en) | 1999-03-16 |
AU737025B2 (en) | 2001-08-09 |
PT1007229E (pt) | 2002-09-30 |
ES2177071T3 (es) | 2002-12-01 |
ATE216926T1 (de) | 2002-05-15 |
DE59803991D1 (de) | 2002-06-06 |
EP1007229B1 (de) | 2002-05-02 |
DE19737093A1 (de) | 1998-07-09 |
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