EP0980718B1 - Wobling screening machine - Google Patents
Wobling screening machine Download PDFInfo
- Publication number
- EP0980718B1 EP0980718B1 EP99111411A EP99111411A EP0980718B1 EP 0980718 B1 EP0980718 B1 EP 0980718B1 EP 99111411 A EP99111411 A EP 99111411A EP 99111411 A EP99111411 A EP 99111411A EP 0980718 B1 EP0980718 B1 EP 0980718B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- outlet
- sensors
- sensor
- throughput
- screening machine
- 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 - Lifetime
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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
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/14—Details or accessories
- B07B13/18—Control
-
- 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
- B07B1/288—Tumbling 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 device for sorting goods, too Called screening machine.
- the invention particularly relates to a Tumbler.
- Such a screening machine is for example became known from the prospectus "tumble screening machines" of the applicant from April 1998.
- Devices of this type are used in very many branches of industry.
- the food industry the chipboard industry, called the chemical industry.
- the devices are used for Disassembly of a fleece-like or debris-capable material into solid or liquid Form, for example in the form of a suspension, in individual components.
- On possible purpose of such a device is, for example, a granular material in different fractions of different grain sizes disassemble.
- Another application is the separation of Impurities from a good.
- a device of the type mentioned comprises a housing, further at least one sorting sieve, at least one inlet for the sorting Well, at least one outlet for the accept and at least one outlet for the backlog.
- Non-contact sensors are generally known. You DE 43 21 447 and DE 44 23 223.
- the invention has for its object a device according to the To design the preamble of claim 1 or a screening process in such a way that simple and inexpensive way to ensure that disruption to everyone Kind, especially as mentioned above, quickly and reliably recognized and can be turned off. Mind you, it's not just about recognizing and canceling a single type of fault, but also any fault that seriously affect the operation of the device.
- the inventors have thus recognized a superordinate criterion that any kind caught by disturbances, they may occur individually or together.
- the measure according to the invention is simple. It only requires assembly a commercially available sensor, the cost of which compared to Value of the entire machine is negligible.
- the vote A contactless sensor is advantageous because it is not comes into contact with the goods and is therefore free of dirt or mechanical influences.
- Such a sensor can be individual adjustment of the sensitivity with a potentiometer selective switching behavior on media with different residual conductivity adapt (for example to liquids, suspensions, dispersions or Solids).
- inductive sensors come into consideration, but also capacitive sensors.
- the latter are able to handle foreign bodies higher residual conductivity, for example, wire fragments the sieve bottom. They are capable of downstream product switches activate the good metal mixture from the good material flow brieflyschleusen.
- the tumbler screen shown in Fig. 1 comprises a housing 1 with a Inlet 1.1, a first accept outlet 1.2 and a second accept outlet 1.3, also an outlet 1.4 for coarse material.
- Two sieve trays can also be seen 2.1 and 2.2.
- the tumbler screening machine shown in FIG. 2 in turn comprises a housing 1 with an inlet 1.1.
- the outlet 1.3 is a sensor 3 for contactless detection of the Throughput assigned to the middle accept material fraction.
- a sensor 3.1 is shown here - not in FIG. 2 shown.
- Sensor 3.1 is a non-contact sensor (proximity switch).
- the device according to the invention can be of special type assigned, for example product switches to discharge a Product-metal mixture from the accept stream. Such switches are activated when the sensor emits a corresponding signal.
Landscapes
- Sorting Of Articles (AREA)
- Combined Means For Separation Of Solids (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zum Sortieren von Gut, auch Siebmaschine genannt. Die Erfindung betrifft insbesondere eine Taumelsiebmaschine. Eine solche Siebmaschine ist zum Beispiel bekanntgeworden aus dem Prospekt "Taumelsiebmaschinen" der Anmelderin vom April 1998.The invention relates to a device for sorting goods, too Called screening machine. The invention particularly relates to a Tumbler. Such a screening machine is for example became known from the prospectus "tumble screening machines" of the applicant from April 1998.
Vorrichtungen dieser Art werden in sehr vielen Industriezweigen eingesetzt. Nur beispielsweise seien die Lebensmittelindustrie, die Spanplattenindustrie, die chemische Industrie genannt. Die Vorrichtungen dienen dabei zum Zerlegen eines vliesförmigen oder schuttfähigen Gutes in fester oder flüssiger Form, beispielsweise in Gestalt einer Suspension, in einzelne Bestandteile. Ein möglicher Zweck einer solchen Vorrichtung besteht beispielsweise darin, ein kömiges Gut in verschiedene Fraktionen unterschiedlicher Korngrößen zu zerlegen. Ein weiterer Anwendungsfall ist das Abtrennen von Verunreinigungen aus einem Gut.Devices of this type are used in very many branches of industry. The food industry, the chipboard industry, called the chemical industry. The devices are used for Disassembly of a fleece-like or debris-capable material into solid or liquid Form, for example in the form of a suspension, in individual components. On possible purpose of such a device is, for example, a granular material in different fractions of different grain sizes disassemble. Another application is the separation of Impurities from a good.
Eine Vorrichtung der genannten Art umfaßt dabei ein Gehäuse, ferner wenigstens ein Sortiersieb, wenigstens einen Einlaß für das zu sortierende Gut, wenigstens einen Auslaß für den Gutstoff und wenigstens einen Auslaß für den Rückstand.A device of the type mentioned comprises a housing, further at least one sorting sieve, at least one inlet for the sorting Well, at least one outlet for the accept and at least one outlet for the backlog.
Eine wichtige Anforderung an eine Vorrichtung der genannten Art ist das Erzielen eines stets gleichmäßigen Klassierergebnisses (Siebgütegrad). Die Vorrichtung soll somit stets mit einer konstanten Trennschärfe arbeiten, um Fraktionen zu erhalten, die auch über längere Zeitspannen des Betriebs hinweg unverändert bleiben, insbesondere bezüglich der Teilchengröße. This is an important requirement for a device of the type mentioned Achieve a consistently uniform classification result (screen quality level). The The device should therefore always work with a constant selectivity Obtain fractions that operate over extended periods of time remain unchanged, especially with regard to particle size.
Es werden regelmäßig große Anstrengungen unternommen, um diesen Anforderungen zu genügen. Eine verhältnismäßig naheliegende Bedingung hierfür besteht darin, die Vorrichtung kontinuierlich mit möglichst konstantem Durchsatz zu beschicken. Diese Anforderung ist verhältnismäßig einfach zu erfüllen. Es gibt aber auch Störgrößen, die sich nicht oder nur schwer vorhersehen lassen. Hierbei sind zu nennen:
- Störungen im Antriebs- bzw. Einstellungssystem der Vorrichtung;
- Riß eines Siebbodens, Zusetzen des Siebes und anderes mehr.
- Faults in the drive or adjustment system of the device;
- Cracking of a sieve bottom, clogging of the sieve and others.
Es hat nicht an Versuchen gefehlt, diese einzelnen Störgrößen zu erkennen und sodann die notwendigen Maßnahmen zu treffen. So kann beispielsweise das Versetzen des Siebes optisch erfaßt werden. Jedoch ist das Ergebnis einer solchen optischen Erfassung keineswegs immer aussagekräftig, da es nicht unbedingt dem wahren Siebzustand entspricht. US 4 687 105 beschreibt eine Vorrichtung zum sortierten von Gut. Dabei handelt es sich jedoch nicht um eine Taumelsiebmaschine. Der dort verwendete Sensor kann nur dann einen Gutstrom erfassen, wenn er von aufschlagenden Gutpartikeln getroffen wird. Es handelt sich dort somit nicht um berührungslose Sensoren.There has been no shortage of attempts to identify these individual disturbance variables and then take the necessary measures. For example, that Moving the screen can be optically detected. However, the result is one such optical detection is not always meaningful since it is not necessarily corresponds to the true sieve condition. US 4,687,105 describes one Device for sorting goods. However, this is not one Tumbler. The sensor used there can only deliver a good flow record if it is hit by impacting good particles. It is about there is therefore no contactless sensors.
Berührungslose Sensoren sind allgemein bekannt. Sie DE 43 21 447 und DE 44 23 223.Non-contact sensors are generally known. You DE 43 21 447 and DE 44 23 223.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung gemäß dem
Oberbegriff von Anspruch 1 bzw. ein Siebverfahren derart zu gestalten, daß auf
einfache und kostengünstige Weise dafür gesorgt wird, daß Störungen jeglicher
Art, insbesondere wie oben erwähnt, schnell und zuverlässig erkannt und
abgestellt werden können. Dabei geht es wohlgemerkt nicht nur um das Erkennen
und Abstellen einer einzigen Störungsart, sondern auch jeglicher Störungen, die
den Betrieb der Vorrichtung gravierend beeinträchtigen.The invention has for its object a device according to the
To design the preamble of
Diese Aufgabe wird durch die Merkmale des unabhängigen Anspruchs gelöst. This object is solved by the features of the independent claim.
Die Erfinder haben somit ein übergeordnetes Kriterium erkannt, das jegliche Art von Störungen erfaßt, mögen diese einzeln oder gemeinsam auftreten.The inventors have thus recognized a superordinate criterion that any kind caught by disturbances, they may occur individually or together.
Die erfindungsgemäße Maßnahme ist einfach. Sie bedarf lediglich der Montage eines handelsüblichen Sensors, dessen Anschaffungskosten im Vergleich zum Wert der gesamten Maschine vemachlässigbar sind. Die Wahl eines berührungslosen Sensors ist deshalb vorteilhaft, weil ein solcher nicht mit dem Gut in Berührung kommt und somit frei von Verschmutzungen oder mechanischen Beeinflussungen ist. Ein solcher Sensor läßt sich durch individuelle Einstellung der Empfindlichkeit mittels Potentiometer auf ein selektives Schaltverhalten auf Medien mit unterschiedlicher Restleitfähigkeit anpassen (beispielsweise auf Flüssigkeiten, Suspensionen, Dispersionen oder Schüttgüter).The measure according to the invention is simple. It only requires assembly a commercially available sensor, the cost of which compared to Value of the entire machine is negligible. The vote A contactless sensor is advantageous because it is not comes into contact with the goods and is therefore free of dirt or mechanical influences. Such a sensor can be individual adjustment of the sensitivity with a potentiometer selective switching behavior on media with different residual conductivity adapt (for example to liquids, suspensions, dispersions or Solids).
Es kommen beispielsweise induktive Sensoren in Betracht, aber auch kapazitive Sensoren. Die letztgenannten sind in der Lage, Fremdkörper mit höherer Restleitfähigkeit zu erkennen, beispielsweise Drahtbruchstücke aus dem Siebboden. Sie vermögen nachgeschaltete Produktweichen zu aktivieren, um das Gut-Metall-Gemisch aus dem Gutstoffstrom auszuschleusen.For example, inductive sensors come into consideration, but also capacitive sensors. The latter are able to handle foreign bodies higher residual conductivity, for example, wire fragments the sieve bottom. They are capable of downstream product switches activate the good metal mixture from the good material flow auszuschleusen.
Die Erfindung ist anhand der Zeichnung näher erläutert. Darin ist im einzelnen folgendes dargestellt:
- Fig. 1
- zeigt eine Taumelsiebmaschine gemäß der Erfindung. Diese Figur dient lediglich der allgemeinen Veranschaulichung. Die erfindungsgemäßen Merkmale sind hierin nicht erkennbar.
- Fig. 2
- zeigt in einer schematischen Ansicht eine Taumelsiebmaschine mit zwei Siebböden.
- Fig. 3
- zeigt einen Ausschnitt aus dem Gegenstand von Fig. 2.
- Fig. 1
- shows a tumbler screen machine according to the invention. This figure is for general illustration only. The features of the invention are not discernible here.
- Fig. 2
- shows a schematic view of a tumbler with two sieve trays.
- Fig. 3
- shows a section of the subject of Fig. 2nd
Die in Fig. 1 gezeigte Taumelsiebmaschine umfaßt ein Gehäuse 1 mit einem
Einlaß 1.1, einem ersten Gutstoffauslaß 1.2 und einem zweiten Gutstoffauslaß
1.3, femer einem Auslaß 1.4 für Grobstoff. Man erkennt femer zwei Siebböden
2.1 und 2.2. The tumbler screen shown in Fig. 1 comprises a
Die in Fig. 2 gezeigte Taumelsiebmaschine umfaßt wiederum ein Gehäuse 1
mit einem Einlaß 1.1. Man erkennt einen ersten Auslaß 1.2 für grobes Gut und
einen zweiten Auslaß 1.3 für mittelgrobes Gut und einenen Auslaß 1.4 für
feines Gut.The tumbler screening machine shown in FIG. 2 in turn comprises a
Dem Auslaß 1.3 ist ein Sensor 3 zum berührungslosen Erfassen des
Durchsatzes der mittleren Gutstoff-Fraktion zugeordnet.The outlet 1.3 is a
Bei der Darstellung gemäß Fig. 3 ist der Auslaß 1.2 erkennbar, bei dem die Grob-Fraktion anfällt. Hier ist ein Sensor 3.1 gezeigt - in Fig. 2 nicht dargestellt. Sensor 3.1 ist ein berührungsloser Sensor (Näherungsschalter).3, the outlet 1.2 can be seen, in which the Coarse fraction arises. A sensor 3.1 is shown here - not in FIG. 2 shown. Sensor 3.1 is a non-contact sensor (proximity switch).
Der Vorrichtung gemäß der Erfindung können Einrichtungen spezieller Art zugeordnet werden, beispielsweise Produktweichen zum Ausschleusen eines Produkt-Metall-Gemisches aus dem Gutstoffstrom. Derartige Weichen werden dann aktiviert, wenn der Sensor ein entsprechendes Signal abgibt.The device according to the invention can be of special type assigned, for example product switches to discharge a Product-metal mixture from the accept stream. Such switches are activated when the sensor emits a corresponding signal.
Claims (3)
- A tumbler screening machine;1.1 with a housing (1);1.2 with at least one sorting screen (2.1, 2.2);1.3 with an inlet (1.1) for the material to be sorted;1.4 with at least one outlet (1.2, 1.3, 1.4) for the material to be sorted;1.5 with at least one further outlet (1.4) for the residues;1.6 with a sensor (3) for detecting the throughput of material at least in the material outlet (1.3) behind the at least one sorting screen (2.1, 2.2);1.7 with the sensor (3) producing one signal each on reaching and upper and/or lower extreme value of the throughput;1.8 with the extreme values being adjustable;1.9 with one or several of the following devices which are controlled by the extreme value signals:a device for displaying the extreme value;a device for cutting off the screening apparatus or certain of its functions;a device for evaluating and/or regulating the material flow;1.10 with at least one additional sensor (3.1) being provided in an outlet (1.2) before the at least one sorting screen (2.1, 2.2) for detecting the throughput;1.11 with the sensors (3, 3.1) being arranged as contactless sensors which do not come into contact with the material.
- An apparatus as claimed in claim 1, characterized in that the contactless sensors (3, 3.1) are capacitive sensors.
- An apparatus as claimed in claim 1 or 2, characterized in that a product shunt for shunting out a partial flow from the flow of material is provided and that a conductive connection is provided between the product shunt and at least one of the sensors (3, 3.1).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19837466A DE19837466C1 (en) | 1998-08-19 | 1998-08-19 | Process monitoring for vibrating swing sieve operations |
DE19837466 | 1998-08-19 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0980718A2 EP0980718A2 (en) | 2000-02-23 |
EP0980718A3 EP0980718A3 (en) | 2001-01-31 |
EP0980718B1 true EP0980718B1 (en) | 2004-03-17 |
Family
ID=7877924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99111411A Expired - Lifetime EP0980718B1 (en) | 1998-08-19 | 1999-06-11 | Wobling screening machine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0980718B1 (en) |
DE (2) | DE19837466C1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10154816B4 (en) * | 2001-11-08 | 2005-09-01 | Allgaier Werke Gmbh | Method and device for continuous monitoring of screenings |
CN103056103A (en) * | 2012-12-11 | 2013-04-24 | 山东宝莫生物化工股份有限公司 | Fluidized bed blanking sieve |
EP3315216A1 (en) * | 2016-10-28 | 2018-05-02 | Metso Sweden Ab | Detection system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE430386B (en) * | 1982-03-03 | 1983-11-14 | Kamas Ind Ab | CONTROL DEVICE FOR SORTING AND CLEANING MACHINES WITH A SALL |
GB8900338D0 (en) * | 1989-01-07 | 1989-03-08 | Data Acquisition & Technical A | A materials handling system |
DE4321447C2 (en) * | 1993-06-29 | 1996-03-14 | Bfi Entsorgungstech | Device for separating material mixtures with adjustable selectivity |
DE4423223C2 (en) * | 1994-07-01 | 2002-12-05 | Rheinische Werkzeug & Maschf | Device for monitoring the screening process on a screening machine |
-
1998
- 1998-08-19 DE DE19837466A patent/DE19837466C1/en not_active Expired - Fee Related
-
1999
- 1999-06-11 DE DE59908853T patent/DE59908853D1/en not_active Expired - Fee Related
- 1999-06-11 EP EP99111411A patent/EP0980718B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0980718A3 (en) | 2001-01-31 |
DE59908853D1 (en) | 2004-04-22 |
DE19837466C1 (en) | 1999-11-11 |
EP0980718A2 (en) | 2000-02-23 |
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