DE3440403A1 - METHOD AND DEVICE FOR CLEANING THE SCREEN BOTTOMS. FOR VIBRATION CLASSIFIERS - Google Patents
METHOD AND DEVICE FOR CLEANING THE SCREEN BOTTOMS. FOR VIBRATION CLASSIFIERSInfo
- Publication number
- DE3440403A1 DE3440403A1 DE19843440403 DE3440403A DE3440403A1 DE 3440403 A1 DE3440403 A1 DE 3440403A1 DE 19843440403 DE19843440403 DE 19843440403 DE 3440403 A DE3440403 A DE 3440403A DE 3440403 A1 DE3440403 A1 DE 3440403A1
- Authority
- DE
- Germany
- Prior art keywords
- sieve
- tensioning
- screen mesh
- screen
- rails
- 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.)
- Granted
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
- B07B1/48—Stretching devices for screens
- B07B1/485—Devices for alternately stretching and sagging screening surfaces
-
- 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
- B07B1/46—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
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
Description
Die Erfindung betrifft ein Verfahren und eine Anordnung zum Reinigen der Siebböden insbes. bei Vibrationsklassiermaschinen, bei denen die Siebgewebe zwischen zwei Spannschienen gehalten und durch mindestens an einer Seite an den Spannschienen angreifende Verstelleinrichtungen spannbar sind.The invention relates to a method and an arrangement for cleaning the sieve bottoms, especially in vibration classifying machines, in which the screen mesh is held between two slide rails and by at least one side on the slide rails attacking adjustment devices can be tensioned.
Wenn durch Vibrationsklassiermaschinen klebriges Siebgut geführt wird, dann neigt dieses häufig zum Ankleben am Siebgewebe und ist von dort nur schwierig zu entfernen. Weitere Schwierigkeiten ergeben sich dadurch, daß Korngrößen im Grenzbereich der Maschenweite der Siebgewebe sich häufig im Gewebe festklemmen.If sticky material to be screened is caused by vibration classifying machines is performed, then this often tends to stick to the screen mesh and is difficult to remove from there. Further Difficulties arise from the fact that grain sizes in the limit range of the mesh size of the screen fabric are often in Clamp tissue.
Durch beide Arten der Verunreinigung der Siebgewebe erfolgt dann mehr oder weniger schnell eine Reduzierung der Siebleistung, da die Siebflächen durch die Verunreinigungen verstopft werden.Both types of contamination of the sieve mesh then more or less quickly result in a reduction in the sieve performance, since the sieve surfaces are clogged by the impurities.
Um die in den Siebmaschinen steckengebliebenen körnigen Verunreinigungen zu beseitigen, wurde schon vorgeschlagen, besondere Klopfeinrichtungen an den Siebgeweben anzubringen, wobei durch deren Schwingungen häufig sich die körnigen Verunreinigungen aus den Maschen wieder lösten. Bei klebrigen oder körnigen und klebrigen Verunreinigungen, haben sich diese Klopfeinrichtungen aber kaum bewährt. Hier wird es bisher erforderlich die Klassiermaschinen von Zeit zu Zeit stillzusetzen und die Siebböden gründlich zu reinigen. Ein derartigerAbout the granular impurities that got stuck in the sieving machines to eliminate, it has already been proposed to attach special knocking devices to the sieve fabrics, The granular impurities often loosened from the mesh again due to their vibrations. When sticky or granular and sticky impurities, these knocking devices have hardly proven themselves. So far it has been necessary here shut down the classifying machines from time to time and thoroughly clean the sieve floors. One of those
3U04033U0403
Aufwand ist allerding wegen des Stillsetzens der Maschinen wirtschaftlich kaum vertretbar.However, it is effort because of the shutdown of the machines economically hardly justifiable.
Durch die vorliegende Erfindung soll deshalb die Aufgabe gelöst werden, eine ausreichende Reinigung der Siebgewebe auch bei schwierig von den Siebgeweben zu entfernen-den Verunreinigungen bei weiterlaufenden Maschinen, d.h. ohne wesentlichen Produktionsausfall zu erreichen.The present invention is therefore intended to achieve the object of adequate cleaning of the sieve fabric as well for impurities that are difficult to remove from the screen mesh with machines running, i.e. without any significant loss of production.
Zur Lösung dieser Aufgabe wird erfindungsgemäß vorgeschlagen, während des Betriebes der Klassiermaschinen bei weiterlaufenden Rütteleinrichtungen die Siebe zunächst zu entspannen bis dabei der an den Siebgeweben anhaftende Schmutz oder in den Maschen der Siebgewebe steckengebliebenes körniges Gut durch die Flatterbewajungen der Siebgewebe weitgehendst entfernt ist und daraufhin dann die Siebgewebe wieder zu spannen. Dabei kann der Vorgang des Entspann-ens und Spannens der Siebgewebe auch wiederholt vorgenommen werden. Er kann darüberhinaus beispielsweise auch durch Zeitintervallschalter gesteuert werden und in bestimmten einstellbaren Zeitabständen automatisch erfolgen.To solve this problem, it is proposed according to the invention that during operation of the classifying machines while the machines are still running Vibrators initially relax the sieves up in the process, the dirt adhering to the screen mesh or granular material stuck in the meshes of the screen mesh through the flutter dwelling of the screen mesh is largely removed and then tensioning the screen mesh again. The process of relaxation and tensioning of the sieve mesh can be used here can also be done repeatedly. It can also be controlled, for example, by time interval switches and take place automatically at certain adjustable time intervals.
Durch das Entspannen der Siebe wird erreicht, daß die Siebe eine Flatterbewegung ausführen, die zu einem heftigen Aus- und Abschütteln festsitzender Verunreinigungen führt, so daß die Siebgewebe optimal gereinigt werden und damit immer eine bestmögliche Siebleistung gewährleistet ist.By relaxing the sieves it is achieved that the sieves perform a fluttering motion which leads to a violent discharge. and shaking off stubborn impurities, so that the screen mesh is optimally cleaned and thus always one the best possible screening performance is guaranteed.
Bei einer Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens können an den Spannschienen für das Siebgewebe Spanneinrichtungen angreifen, die als mit einem Druckluftanschluß verbundene pneumatische Zylinder an sich bekannter Bauart ausgebildet sein können. Die Spannschienen für die Siebgewebe können aber auch mittels Spannfedern am Maschinenrahmen aufgehängt sein, wobei die Entspannung der Siebgewebe dannIn a device for carrying out the method according to the invention, the tensioning rails for the screen mesh Attack clamping devices, which are known per se as pneumatic cylinders connected to a compressed air connection Can be designed design. The tensioning rails for the screen mesh can also be attached to the machine frame by means of tension springs be hung up, with the relaxation of the sieve fabric then
/en mittels von Fall zu Fall betätigter Elektromagnet erfolgen kann. Zweckmäßig sollen die Spanneinrichtungen mit den Spannschienen für die Siebgewebe gelenkig beispielsweise über Scharniere, Blattfedern oder dergl. verbunden sein./ s can be carried out by means of electromagnets actuated on a case-by-case basis. The clamping devices should expediently with the clamping rails be articulated for the screen mesh, for example via hinges, leaf springs or the like.
Zur Intensivierung der Reinigung der Siebgewebe können unterhalb der Siebgewebe noch Stütz- bzw. Schlagleisten angeordnet sein.To intensify the cleaning of the sieve mesh can be used below the sieve mesh can still be arranged support strips or blow bars.
An Hand der beiliegenden Zeichnung soll die Erfindung nachfolgend noch näher erläutert werden. Auf der Zeichnung zeigen
in schematischer Darstellung
Fig. 1 die Anbringung eines Siebbodens mit Spanneinrichtung am Maschinenrahmen in Seitenansicht,The invention will be explained in more detail below with reference to the accompanying drawing. On the drawing show in a schematic representation
Fig. 1 the attachment of a sieve bottom with clamping device on the machine frame in a side view,
Fig. 2 in Teilansicht von oben auf diesen Siebboden mit Spanneinrichtung undFig. 2 is a partial view from above of this sieve bottom with tensioning device and
Fig. 3 ein anderes Ausführungsbeispiel einer Spanneinrichtung mit Siebboden am Rahmen einer Klassiermaschine.3 shows another embodiment of a tensioning device with a sieve bottom on the frame of a classifying machine.
In den Figuren ist mit 10 das Siebgewebe bezeichnet, welches an seinem einen Ende in eine feststehende Spannschiene 11 eingespannt ist. Das andere Ende des Siebgewebes 10 ist mit einer verschieb!ichen Spannschiene 12 verbunden. Bei demIn the figures, 10 denotes the screen fabric which, at one end, is inserted into a fixed tensioning rail 11 is clamped. The other end of the screen fabric 10 is connected to a sliding tensioning rail 12. In which
Ausfuhrungsbeispiel der Fig. 1 und 2 ist die Spannschiene 12 mit einer Spanneinrichtung 14 verbunden, die am Maschinenfahmen 13 befestigt ist und einen Druckluftzylinder aufweist. Wenn Druckluft auf dem Kolben des Druckluftzylinders ansteht, wird das Siebgewebe gespannt, d.h. der Kolben geht in Pfeilrichtung nach rechts. Beim Abschalten der Druckluft geht der Kolben in Pfeilrichtung nach links und das Siebgewebe 10 wird entspannt.Exemplary embodiment of FIGS. 1 and 2, the tensioning rail 12 is connected to a tensioning device 14 which is attached to the machine frame 13 is attached and has a compressed air cylinder. When compressed air on the piston of the air cylinder is present, the screen mesh is stretched, i.e. the piston goes to the right in the direction of the arrow. When switching off the compressed air the piston moves to the left in the direction of the arrow and the screen fabric 10 is relaxed.
Bei der Anordnung nach Fig. 3 wird das Gewebe dadurch gespannt, daß die Spannschiene 12 mittels Spannfedern 15 am Maschinenrahmen 13 befestigt ist. Hierbei erfolgt die Entspannung des Siebgewebes 10 dadurch, daß die Spannschiene durch Elektromagneten 16 in Pfeilrichtung nach links gezogen wird. Werden die Elektromagneten abgeschaltet, ziehen die Federn 15 das Siebgewebe wieder stramm und spannen dieses damit.In the arrangement according to FIG. 3, the tissue is tensioned in that the tensioning rail 12 by means of tension springs 15 on Machine frame 13 is attached. Here, the relaxation of the screen fabric 10 takes place in that the tensioning rail is pulled by electromagnet 16 in the direction of the arrow to the left. If the electromagnets are switched off, they pull Springs 15 tighten the screen mesh again and thus tension it.
Es liegen natürlich auch noch andere geeignete Spannvorrichtunge im Rahmen der Erfindung.There are of course also other suitable clamping devices within the scope of the invention.
'g-'G-
Leerseite -Blank page -
Claims (7)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843440403 DE3440403A1 (en) | 1984-11-06 | 1984-11-06 | METHOD AND DEVICE FOR CLEANING THE SCREEN BOTTOMS. FOR VIBRATION CLASSIFIERS |
NO854386A NO854386L (en) | 1984-11-06 | 1985-11-04 | PROCEDURE AND APPARATUS FOR CLEANING SIGNS, SPECIFICALLY IN VIBRATING SIGNS. |
EP85114076A EP0184006A1 (en) | 1984-11-06 | 1985-11-05 | Method and device for cleaning screen bottoms, particularly in multideck vibratory screening machines |
FI854345A FI854345A (en) | 1984-11-06 | 1985-11-05 | FOERFARANDE OCH APPARAT FOER RENSNING AV SIKTDUKAR SAERSKILT I VIBRERANDE SIKTNINGSMASKINER. |
DK510285A DK510285A (en) | 1984-11-06 | 1985-11-05 | PROCEDURE AND APPARATUS FOR CLEANING SCREENS, ISRAEL IN CONNECTION WITH FIBER SCREEN EQUIPMENT |
CA000494641A CA1275975C (en) | 1984-11-06 | 1985-11-05 | Method and apparatus for cleaning of screen-cloths in particular at vibrating screening equipment |
AU49416/85A AU4941685A (en) | 1984-11-06 | 1985-11-06 | Method and apparatus for cleaning of screen-cloths in particular at vibrating screening equipment |
ZA858531A ZA858531B (en) | 1984-11-06 | 1985-11-06 | Method and apparatus for cleaning of screen-cloths in particular a vibrating screening equipment |
JP60249919A JPS61181578A (en) | 1984-11-06 | 1985-11-06 | Method and device for cleaning cloth for sieve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843440403 DE3440403A1 (en) | 1984-11-06 | 1984-11-06 | METHOD AND DEVICE FOR CLEANING THE SCREEN BOTTOMS. FOR VIBRATION CLASSIFIERS |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3440403A1 true DE3440403A1 (en) | 1986-05-07 |
DE3440403C2 DE3440403C2 (en) | 1990-04-05 |
Family
ID=6249545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19843440403 Granted DE3440403A1 (en) | 1984-11-06 | 1984-11-06 | METHOD AND DEVICE FOR CLEANING THE SCREEN BOTTOMS. FOR VIBRATION CLASSIFIERS |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0184006A1 (en) |
JP (1) | JPS61181578A (en) |
AU (1) | AU4941685A (en) |
CA (1) | CA1275975C (en) |
DE (1) | DE3440403A1 (en) |
DK (1) | DK510285A (en) |
FI (1) | FI854345A (en) |
NO (1) | NO854386L (en) |
ZA (1) | ZA858531B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4344199C1 (en) * | 1993-12-23 | 1995-02-23 | Ivt Industrietechnik Gmbh | Stretching device for screens |
CN115626496A (en) * | 2022-12-19 | 2023-01-20 | 常州速稳智能机械有限公司 | Piezoelectric drive-based screening and conveying device and working method thereof |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE65434T1 (en) * | 1987-11-13 | 1991-08-15 | Inst Tscherna Metalurgia | VIBRATION SCREEN. |
FI20011927A (en) * | 2001-10-02 | 2003-04-03 | Pertti Tommila | vibrating screens |
CN107999370B (en) * | 2017-12-22 | 2024-02-09 | 农业部南京农业机械化研究所 | Self-cleaning anti-blocking peanut grading device |
CN112774971B (en) * | 2020-12-29 | 2022-04-26 | 颍上县健辉农牧有机肥有限公司 | Organic fertilizer screening equipment capable of automatically cleaning animal hair and broken stones |
CN116955961B (en) * | 2023-08-25 | 2024-02-09 | 江苏秦郡机械科技有限公司 | Intelligent roller cage screen cleaning effect evaluation method and system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2279042A (en) * | 1940-08-03 | 1942-04-07 | Inland Lime & Stone Company | Screening apparatus |
DE1263467B (en) * | 1967-01-10 | 1968-03-14 | Gutehoffnungshuette Sterkrade | Device for fixing sieve panels in sieve frames |
US3655045A (en) * | 1969-10-30 | 1972-04-11 | Ajax Flexible Coupling Co Inc | Method and apparatus for conveying and separating materials |
AT372877B (en) * | 1980-10-13 | 1983-11-25 | Dabmar Manufacturing Company P | SCREEN DEVICE |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1086474A (en) * | 1965-05-27 | 1967-10-11 | G Pk I Gipromashugleobogaschen | Device for mounting of wire screens on screening machines |
DE2131976B2 (en) * | 1971-06-26 | 1975-03-27 | Maschinenfabrik Jaeger & Co Kg, 3253 Hessisch Oldendorf | Continuously-operating sifting machine - with alternately taut and slackened base and single vibratory system with stepped sieve base |
DE2226968A1 (en) * | 1972-06-02 | 1973-12-13 | Albert Wehner | ELASTIC CONVEYOR, SCREEN OR FILTER BASE WITH VIBRATION DRIVE |
DE2924506A1 (en) * | 1979-06-18 | 1981-01-29 | Mogensen Gmbh & Co Kg | Multi-layered sieve for fine granular material - has two sieve bases of equal mesh size avoiding overloading when sieving mostly fine material |
-
1984
- 1984-11-06 DE DE19843440403 patent/DE3440403A1/en active Granted
-
1985
- 1985-11-04 NO NO854386A patent/NO854386L/en unknown
- 1985-11-05 FI FI854345A patent/FI854345A/en not_active Application Discontinuation
- 1985-11-05 EP EP85114076A patent/EP0184006A1/en not_active Withdrawn
- 1985-11-05 DK DK510285A patent/DK510285A/en not_active Application Discontinuation
- 1985-11-05 CA CA000494641A patent/CA1275975C/en not_active Expired - Fee Related
- 1985-11-06 AU AU49416/85A patent/AU4941685A/en not_active Abandoned
- 1985-11-06 ZA ZA858531A patent/ZA858531B/en unknown
- 1985-11-06 JP JP60249919A patent/JPS61181578A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2279042A (en) * | 1940-08-03 | 1942-04-07 | Inland Lime & Stone Company | Screening apparatus |
DE1263467B (en) * | 1967-01-10 | 1968-03-14 | Gutehoffnungshuette Sterkrade | Device for fixing sieve panels in sieve frames |
US3655045A (en) * | 1969-10-30 | 1972-04-11 | Ajax Flexible Coupling Co Inc | Method and apparatus for conveying and separating materials |
AT372877B (en) * | 1980-10-13 | 1983-11-25 | Dabmar Manufacturing Company P | SCREEN DEVICE |
Non-Patent Citations (1)
Title |
---|
Sonderdruck aus "Aufbereitungstechnik", Bd. 18, (1977), 7, S. 327 - 332 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4344199C1 (en) * | 1993-12-23 | 1995-02-23 | Ivt Industrietechnik Gmbh | Stretching device for screens |
CN115626496A (en) * | 2022-12-19 | 2023-01-20 | 常州速稳智能机械有限公司 | Piezoelectric drive-based screening and conveying device and working method thereof |
Also Published As
Publication number | Publication date |
---|---|
DK510285D0 (en) | 1985-11-05 |
CA1275975C (en) | 1990-11-06 |
NO854386L (en) | 1986-05-07 |
JPS61181578A (en) | 1986-08-14 |
DK510285A (en) | 1986-05-07 |
FI854345A0 (en) | 1985-11-05 |
AU4941685A (en) | 1986-05-29 |
EP0184006A1 (en) | 1986-06-11 |
FI854345A (en) | 1986-05-07 |
ZA858531B (en) | 1986-07-30 |
DE3440403C2 (en) | 1990-04-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8365 | Fully valid after opposition proceedings | ||
8380 | Miscellaneous part iii |
Free format text: ANSPRUCH 1, ZEILE 4 "SPANNSCHICHTEN" AENDERN IN "SPANNSCHIENEN" |
|
8339 | Ceased/non-payment of the annual fee |