EP1900445B1 - Device for separating coarse and fine material - Google Patents

Device for separating coarse and fine material Download PDF

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Publication number
EP1900445B1
EP1900445B1 EP07450152.9A EP07450152A EP1900445B1 EP 1900445 B1 EP1900445 B1 EP 1900445B1 EP 07450152 A EP07450152 A EP 07450152A EP 1900445 B1 EP1900445 B1 EP 1900445B1
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EP
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Prior art keywords
opening
separator
air
outlet opening
separating air
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EP07450152.9A
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German (de)
French (fr)
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EP1900445A1 (en
Inventor
Johann Leonhartsberger
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LHS Clean Air Systems GmbH
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LHS Clean Air Systems GmbH
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    • 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
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall

Definitions

  • the invention relates to a device for separating coarse and fine material in a classifying air flow of a classifier, the at least one material feed opening, at least two superimposed inlet openings for the classifying air, at least one outlet opening for the removal of classifying air and sifted material and a discharge for the excreted Coarse material includes.
  • Such devices are used in particular in the production of wood fiber boards used to remove impurities such as ball of material or lumps of excessive size from the flow of material.
  • the wood material is usually first defibered, then wet glued, dried, sifted and finally pressed into plates ( EP 0 795 359 B1 ).
  • the classifiers used are usually ascending sifters in which the material is fed into a stream of air directed upwards in a kind of chimney, whereby the particles of fibers are caught by the upwardly directed stream of air and entrained by the stream of air. The particles with too large a weight to surface ratio fall down into a catch tank and can be discharged through a lock from the classifier.
  • the fibers which leave the sifter at the top and are then cleaned of coarse material, are then usually fed to a cyclone separator in which the material contained in the air stream is separated from the air stream before it can be further processed in the desired manner.
  • the classifying air is usually conducted in a closed circuit and usually treated accordingly prior to re-introduction into the classifier or a certain amount of classifying air fresh fresh air replaced.
  • the material to be cleaned in the classifier usually give up from above into the classifier, the material flow reversed by 180 ° and the material is then applied back up from the classifier, where it is in the material flow especially at increased throughput to mats or strands occurs.
  • Querstromsichter are for example from the DE 907 145 C and the GB899 449A known.
  • the material to be viewed is placed in a cross-flow of air and settles the material viewed depending on its throw on the sifter or on a sieve.
  • the GB 899 449 A It is envisaged to abandon the material to be sighted arranged on top of each other and a kind of vibrating screen for the material to be sighted guiding devices for the transverse air flow. The screened material is fed to different outlet openings as a function of the width of the chute and the cross-flow of air.
  • the invention has for its object to provide a device for separating coarse and fine material, which provides an improved visual outcome and in particular stratification and mat formation in the classifier zone at least largely avoids.
  • the invention solves this problem in that the at least one outlet opening in order to achieve a Querstromsichtung of the material below the uppermost inlet opening for the classifying air on a side opposite the inlet side of the separator is arranged and that the inlet openings for the classifying air to improve the Querstromsichtung in the conveying direction of the material
  • the lower inlet opening for the Under-air of the separator is preferably directed against the at least one outlet opening.
  • a further improvement of the visual result is obtained if at least three superimposed inlet openings are provided for the classifying air, of which the upper two inlet openings are arranged at least substantially above the at least one outlet opening.
  • the surface normal axes of the material application opening and the outlet opening form an angle of between 90 and 180 °, in particular between 120 and 150 °. Best visible results are achieved with an angle of 130 to 140 °.
  • 180 ° would be the discharge opening for the coarse material and the Outlet opening for removal of classifying air and secured material, for example, arranged laterally offset side by side and separated by a partition wall.
  • the choice of the angle between surface normal axes of the material application opening and the outlet depends in particular on the type of material to be viewed, such as wood, coal, dust, sand od. Like. And on the accuracy of the objective result to be achieved for given proportions of the classifier.
  • dissolving nozzles for the material introduced into the separator are provided in the separator under the material feed opening.
  • the dissolution of the material introduced into the sifter is accordingly preferably not effected by opening rollers, but by means of dissolving nozzles which may be acted upon by tempered compressed air, which provide for a corresponding turbulence of the material supplied to the sifter via the feed opening.
  • dissolving nozzles have the additional effect of slowing the fall of the material into the sifter and thus prolonging the residence time of the material in the sifter.
  • injection angle and / or the distance of the dissolving nozzles directed against the material flow are rotatable and height-adjustable with respect to the material feed opening by means of an adjusting device.
  • the separator Since any risk of surrounding persons or equipment should always be avoided in the case of dust explosions that may occur in such a separator, it is recommended that the separator has upwardly directed explosion flaps on an upper separator wall in the region between the material feed opening and the outlet opening.
  • the separator has upwardly directed explosion flaps on an upper separator wall in the region between the material feed opening and the outlet opening.
  • an adjustable guide device can be provided on a wall of the classifier in the region between the material feed opening and the outlet opening, in particular in the vicinity of the outlet opening, determining the crossflow cross section between inlet openings and outlet opening.
  • This guide causes before the outlet openings a kind of nozzle effect with increased in the restricted cross-section flow rates, which not only adjust the sifting effect, but also can prevent material accumulation in areas in front of the outlet openings.
  • the outlet openings may also be arranged in front of flaps whose angle of attack is adjustable to the view air flow guide transversely to the classifying air flow.
  • a separator according to the invention By provided in a separator according to the invention horizontally or obliquely downwardly directed air flow, a high material throughput can be ensured with good visibility. Since the light fraction is not deflected by 180 ° compared to the usual climatic wind sifters, stratification or matting in the classifier zone is largely ruled out, as a result of which the visual result is considerably improved.
  • a classifier 1 ie a device for separating coarse and fine material in a classifying air stream, comprises a classifier housing 2 with two material feed openings 3 with associated metering devices in the form of two rotary valves 4, three inlet openings 5, 6, 7 arranged one above the other for the classifying air, a plurality of outlet openings 8 for the removal of classifying air and sighted material, and a discharge unit 9 in the form of a discharge screw for the coarse material separated from the classifying air stream.
  • the outlet openings 8 below the uppermost inlet opening 5 for the classifying air on one of the inlet openings 5, 6, 7 opposite side of the classifier 1 are arranged.
  • the inlet openings 5, 6, 7 are to improve the Querstromsichtung in the conveying direction of the material, ie gradually offset in conveyluftstromcardi to the discharge out, with the padsde for the lower air of the classifier inlet opening 7 is directed against the outlet opening 8, to prevent penetration of fine material in to avoid the discharge area for the coarse material and material accumulation in the transition region between the discharge area and outlet openings 8.
  • the angle ⁇ between the surface normal axes of the material feed opening 3 and the outlet openings 8 is in the illustrated embodiment about 135 °.
  • the material discharge opening 3 are associated with drying air introduction openings 10, via which the material introduced into the separator 1 can optionally be subjected to hot air for the purpose of drying immediately after entering the classifier 1.
  • Dissolving nozzles 11 for the material introduced into the sifter 1 are provided below the material application openings 3, which provide dissolution nozzles 11 for a corresponding turbulence of the material introduced into the sifter 1 and thereby dissolve any existing material wads or accumulations.
  • the inlet angle and the distance from the material flow directed dissolution nozzle 11 with respect to the material application openings 3 is adjustable by means of an adjusting device, not shown.
  • the classifier 1 can be associated with a heating device (not shown) for the classifying air or drying air.
  • dust explosion flaps 13 arranged outside of any danger zone are provided, which are aligned upward on an upper classifier wall 14 in the region between material feed openings 3 and outlet openings 8.
  • an upper classifier wall 14 In order to avoid endangering persons in the case of possibly occurring dust explosions, dust explosion flaps 13 arranged outside of any danger zone are provided, which are aligned upward on an upper classifier wall 14 in the region between material feed openings 3 and outlet openings 8.
  • To adjust the flow velocity in front of the outlet openings are on a wall of the classifier 1 in the area between material feed opening 3 and outlet openings 8 in the vicinity of the outlet openings 8 a Querströmungsquerites between inlet openings 5, 6, 7 and outlet openings 8 defining adjustable guide 15 and the outlet openings 8 upstream valves 16 provided, the angle of attack is adjustable to the classifying air flow guide transversely to the classifying airflow.
  • the classifier width is arbitrarily large because of a modular design of the housing arbitrarily large, in order to adjust the device in advance to achieve the material throughput in advance in a simple manner.

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  • Combined Means For Separation Of Solids (AREA)

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Trennen von Grob- und Feinmaterial in einem Sichtluftstrom eines Sichters, der wenigstens eine Materialaufgabeöffnung, wenigstens zwei übereinander angeordnete Eintrittsöffnungen für die Sichtluft, wenigstens eine Austrittsöffnung zur Abfuhr von Sichtluft und gesichtetem Material sowie eine Austragseinrichtung für das ausgeschiedene Grobmaterial umfaßt.The invention relates to a device for separating coarse and fine material in a classifying air flow of a classifier, the at least one material feed opening, at least two superimposed inlet openings for the classifying air, at least one outlet opening for the removal of classifying air and sifted material and a discharge for the excreted Coarse material includes.

Derartige Vorrichtungen werden insbesondere bei der Herstellung von Holzfaserplatten dazu eingesetzt Verunreinigungen wie beispielsweise Materialknäuel oder Klumpen übermäßiger Größe aus dem Materialstrom zu entfernen. Im Zuge eines derartigen Verfahrens zur Herstellung von Holzfaserplatten wird das Holzmaterial üblicherweise zuerst zerfasert, anschließend naß beleimt, getrocknet, gesichtet und abschließend zu Platten verpreßt ( EP 0 795 359 B1 ). Bei den dazu verwendeten Sichtern handelt es sich üblicherweise um Steigwindsichter, bei denen das Material in einen in einer Art Kamin nach oben geführten Luftstrom aufgegeben wird, wobei die Faserteilchen von dem nach oben gerichteten Luftstrom erfaßt und vom Luftstrom mitgenommen werden. Die Teilchen mit einem zu großen Gewicht zu Oberflächenverhältnis fallen nach unten in einen Auffangbehälter und können über eine Schleuse aus dem Sichter ausgetragen werden. Die den Sichter nach oben verlassenden, von Grobmaterial gereinigten Fasern werden anschließend üblicherweise einem Zyklonabscheider zugeführt, in dem das im Luftstrom enthaltene Material aus dem Luftstrom abgeschieden wird, bevor es in der gewünschten Weise weiterzuverarbeiten ist. Die Sichtluft wird dabei üblicherweise in einem geschlossenen Kreislauf geführt und vor einer erneuten Einleitung in den Sichter üblicherweise entsprechend aufbereitet bzw. ein gewisser Anteil an Sichtluft durch frische Sichtluft ersetzt. Als problematisch hat es sich bei diesen bekannten Vorrichtungen insbesondere herausgestellt, daß das zu reinigende Material im Sichter üblicherweise von oben in den Sichter aufgeben, der Materialstrom um 180° umgekehrt und das Material anschließend wieder nach oben aus dem Sichter ausgebracht wird, wobei es im Materialstrom insbesondere bei erhöhtem Durchsatz zu Mattenbildungen bzw. Strähnenbildungen kommt. Dadurch wird ein nicht unerheblicher Anteil an Grobteilchen mitgerissen und das Sichtergebnis verschlechtert, da diese Matten bzw. Strähnen als eine Art Bett für die Grobteilchen wirken. Querstromsichter sind beispielsweise aus der DE 907 145 C und der GB899 449A bekannt. Bei einer aus der DE 907 145 C bekannten Vorrichtung wird das zu sichtende Material in einen Querluftstrom aufgegeben und setzt sich das gesichtete Material in Abhängigkeit seiner Wurfweite am Sichterboden oder auf einem Sieb ab. Gemäß der GB 899 449 A ist es vorgesehen das zu sichtende Material auf übereinander angeordnete und eine Art Rüttelsieb für das zu sichtende Material bildende Leiteinrichtungen für den Querluftstrom aufzugeben. Das gesichtete Material wird in Abhängigkeit von Rüttelweite und Querluftstrom verschiedenen Austrittsöffnungen zugeleitet.Such devices are used in particular in the production of wood fiber boards used to remove impurities such as ball of material or lumps of excessive size from the flow of material. In the course of such a process for the production of wood fiber boards, the wood material is usually first defibered, then wet glued, dried, sifted and finally pressed into plates ( EP 0 795 359 B1 ). The classifiers used are usually ascending sifters in which the material is fed into a stream of air directed upwards in a kind of chimney, whereby the particles of fibers are caught by the upwardly directed stream of air and entrained by the stream of air. The particles with too large a weight to surface ratio fall down into a catch tank and can be discharged through a lock from the classifier. The fibers, which leave the sifter at the top and are then cleaned of coarse material, are then usually fed to a cyclone separator in which the material contained in the air stream is separated from the air stream before it can be further processed in the desired manner. The classifying air is usually conducted in a closed circuit and usually treated accordingly prior to re-introduction into the classifier or a certain amount of classifying air fresh fresh air replaced. As a problem, it has been found in these known devices in particular that the material to be cleaned in the classifier usually give up from above into the classifier, the material flow reversed by 180 ° and the material is then applied back up from the classifier, where it is in the material flow especially at increased throughput to mats or strands occurs. As a result, a not inconsiderable proportion of coarse particles is entrained and the visibility deteriorates, since these mats or strands act as a kind of bed for the coarse particles. Querstromsichter are for example from the DE 907 145 C and the GB899 449A known. At one of the DE 907 145 C known device, the material to be viewed is placed in a cross-flow of air and settles the material viewed depending on its throw on the sifter or on a sieve. According to the GB 899 449 A It is envisaged to abandon the material to be sighted arranged on top of each other and a kind of vibrating screen for the material to be sighted guiding devices for the transverse air flow. The screened material is fed to different outlet openings as a function of the width of the chute and the cross-flow of air.

Ausgehend von einem Stand der Technik der vorgeschilderten Art liegt der Erfindung die Aufgabe zugrunde, eine Vorrichtung zum Trennen von Grob- und Feinmaterial zu schaffen, die ein verbessertes Sichtergebnis liefert und insbesondere eine Strähnen- und Mattenbildung in der Sichterzone zumindest weitgehend vermeidet.Starting from a state of the art of the above-described type, the invention has for its object to provide a device for separating coarse and fine material, which provides an improved visual outcome and in particular stratification and mat formation in the classifier zone at least largely avoids.

Die Erfindung löst diese Aufgabe dadurch, daß die wenigstens eine Austrittsöffnung zwecks Erzielung einer Querstromsichtung des Materials unterhalb der obersten Eintrittsöffnung für die Sichtluft auf einer der Eintrittsöffnung gegenüberliegenden Seite des Sichters angeordnet ist und dass die Eintrittsöffnungen für die Sichtluft zur Verbesserung der Querstromsichtung in Förderrichtung des Materials, also in Sichtluftstromrichtung zu der Austragsöffnung hin stufenweise versetzt sind, wobei die untere Eintrittsöffnung für die Unterluft des Sichters vorzugsweise gegen die wenigstens eine Austrittsöffnung gerichtet ist.The invention solves this problem in that the at least one outlet opening in order to achieve a Querstromsichtung of the material below the uppermost inlet opening for the classifying air on a side opposite the inlet side of the separator is arranged and that the inlet openings for the classifying air to improve the Querstromsichtung in the conveying direction of the material Thus, in the direction of the air flow direction to the discharge opening are gradually offset, the lower inlet opening for the Under-air of the separator is preferably directed against the at least one outlet opening.

Es hat sich herausgestellt, daß durch den Einsatz eines Querstromsichters zum Sichten von fasrigen, körnigen oder staubigen Materialien nicht nur das Sichtergebnis erheblich verbessert werden kann, da damit in überaschender Weise eine Strähnen- bzw. Mattenbildung weitgehend vermeidbar ist, sondern mit einfachen Mitteln auch eine gegenüber den bekannten Vorrichtungen verlängerte Verweilzeit im Sichter erzielbar ist, was ebenfalls zur erheblichen Verbesserung des Sichtergebnisses beiträgt. Erfindungsgemäß wird der Materialstrom im Sichter nicht um 180° umgelenkt, sondern lediglich quer zu der natürlichen Fallrichtung abgelenkt, was zur Folge hat, daß mit vergleichsweise geringen Geschwindigkeiten im Sichtluftstrom gearbeitet werden kann, was wiederum die längeren Verweildauern bewirkt, zur Vermeidung von Matten- und Strähnenbildung beiträgt und somit ein verbessertes Sichtergebnis zur Folge hat. Ist zudem die untere Eintrittsöffnung für die Unterluft des Sichters gegen die Austrittsöffnung gerichtet, ist gewährleistet, daß die Unterluft über dem Austragsbereich für das Grobmaterial eine Art Luftkissen bildet, das ein Eindringen von Feinmaterial in den Austragbereich sicher vermeidet. Zudem werden dadurch Materialablagerungen im Bereich zwischen Austragseinrichtung für das Grobmaterial und Austrittsöffnung zur Abfuhr von Sichtluft und gesichtetem Material vermieden.It has been found that not only the visual result can be significantly improved by the use of a cross-flow sifter for sifting fibrous, granular or dusty materials, since thus in a surprising manner strands or mats is largely avoidable, but with simple means also one compared with the known devices extended residence time in the classifier is achieved, which also contributes to the considerable improvement of the visual outcome. According to the material flow in the sifter is not deflected by 180 °, but only deflected transversely to the natural direction of fall, which has the consequence that can be operated at comparatively low speeds in the classifying air stream, which in turn causes the longer residence time, to avoid mat and Stratification contributes and thus has an improved visual outcome. In addition, if the lower inlet opening for the under-air of the separator is directed against the outlet opening, it is ensured that the under-air forms a kind of air cushion over the discharge area for the coarse material, which reliably avoids the penetration of fine material into the discharge area. In addition, material deposits in the region between the discharge device for the coarse material and the outlet opening for the removal of classifying air and sighted material are thereby avoided.

Eine weitere Verbesserung des Sichtergebnisses ergibt sich, wenn wenigstens drei übereinander angeordnete Eintrittsöffnungen für die Sichtluft vorgesehen sind, von denen die oberen beiden Eintrittsöffnungen zumindest im wesentlichen oberhalb der wenigstens einen Austrittsöffnung angeordnet sind.A further improvement of the visual result is obtained if at least three superimposed inlet openings are provided for the classifying air, of which the upper two inlet openings are arranged at least substantially above the at least one outlet opening.

Besonders gute Sichtergebnisse werden erzielt, wenn die Flächennormalachsen der Materialaufgabeöffnung und der Austrittsöffnung einen Winkel zwischen 90 bis 180°, insbesondere 120 bis 150°, einschließen. Beste Sichtergebnisse werden mit einem Winkel von 130 bis 140° erzielt. Bei der Konstruktionsvariante mit 180° wären die Austragsöffnung für das Grobmaterial und die Austrittsöffnung zur Abfuhr von Sichtluft und gesichertem Material beispielsweise seitlich versetzt nebeneinander angeordnet und durch eine Trennwand voneinander getrennt. Die Wahl des Winkels zwischen Flächennormalachsen der Materialaufgabeöffnung und der Austrittsöffnung hängt insbesondere von der Art des zu sichtenden Materials, beispielsweise Holz, Kohle, Staub, Sand od. dgl. und von der Genauigkeit des zu erzielenden Sichtergebnisses bei gegebenen Größenverhältnissen des Sichters ab.Particularly good visual results are achieved when the surface normal axes of the material application opening and the outlet opening form an angle of between 90 and 180 °, in particular between 120 and 150 °. Best visible results are achieved with an angle of 130 to 140 °. In the design variant with 180 ° would be the discharge opening for the coarse material and the Outlet opening for removal of classifying air and secured material, for example, arranged laterally offset side by side and separated by a partition wall. The choice of the angle between surface normal axes of the material application opening and the outlet depends in particular on the type of material to be viewed, such as wood, coal, dust, sand od. Like. And on the accuracy of the objective result to be achieved for given proportions of the classifier.

Wie bereits erwähnt kann mit der erfindungsgemäßen Vorrichtung eine gegenüber den aus dem Stand der Technik bekannten Vorrichtungen verlängerte Verweildauer des zu sichtenden Material im Sichter erzielt werden. Um diese vergrößerte Verweildauer im Sichter zusätzlich sinnvoll nutzen zu können, besteht die Möglichkeit der Materialaufgabeöffnung Trocknungslufteinbringungsöffnungen zuzuordnen. Damit besteht die Möglichkeit das in den Sichter eingebrachte, beispielsweise noch feuchte Material mit Trocknungsluft, beispielsweise von bis zu 160°C, zu beaufschlagen und somit den Sichter nicht nur zum Trennen von Grob- und Feinmaterial zu verwenden, sondern zugleich als Trocknungseinrichtung einzusetzen, wodurch ein zusätzlicher Arbeitsschritt eingespart werden kann. Zu diesem Zweck kann Anstelle der Trocknungslufteinbringungsöffnungen oder zusätzlich dazu entsprechend temperierte Sichtluft in den Sichter eingebracht werden um das Material nicht nur zu sichten, sondern auch gleichzeitig zu trocknen.As already mentioned, with the device according to the invention a prolonged residence time of the material to be sighted in the separator can be achieved in comparison to the devices known from the prior art. In order to be able to additionally use this increased residence time in the classifier, it is possible to assign the material supply opening to drying air introduction openings. Thus, there is the possibility that introduced into the classifier, for example still moist material with drying air, For example, up to 160 ° C, and thus to use the sifter not only for the separation of coarse and fine material, but also to use as a drying device, whereby an additional step can be saved. For this purpose, instead of the Trocknungslufteinigungsungsöffnungen or in addition to appropriately tempered classifying air can be introduced into the classifier not only to sift the material, but also to dry at the same time.

Um ein übermäßiges Einbringen von Klumpen in den Sichter zu vermeiden bzw. um die in den Sichter eingebrachten Materialien aufzulösen, ist es aus dem Stand der Technik bekannt, das Material über Auflösewalzen in den Sichter einzubringen. Als für die Erfindung besonders vorteilhaft hat es sich allerdings herausgestellt, wenn im Sichter unter der Materialaufgabeöffnung Auflösedüsen für das in den Sichter eingebrachte Material vorgesehen sind. Das Auflösen des in den Sichter eingebrachten Materials erfolgt demgemäß vorzugsweise nicht über Auflösewalzen, sonder über mit gegebenenfalls mit temperierter verdichteter Luft beaufschlagte Auflösedüsen, welche für eine entsprechende Verwirbelung des über die Aufgabeöffnung dem Sichter zugeführten Materials sorgen. Diese Auflösedüsen haben den zusätzlichen Effekt, daß der Fall des Materials in den Sichter gebremst und die Verweildauer des Materials im Sichter somit noch weiter verlängert werden kann. Um die Auflösewirkung dabei in weiten Bereichen einstellen zu können empfiehlt es sich wenn der Einblaswinkel und/oder der Abstand der gegen den Materialstrom gerichteten Auflösedüsen bezüglich der Materialaufgabeöffnung mittels einer Stellvorrichtung drehbar und höhenverstellbar ist.In order to avoid an excessive introduction of lumps into the classifier or to dissolve the materials introduced into the classifier, it is known from the prior art to introduce the material into the classifier via opening rollers. However, it has proved to be particularly advantageous for the invention if dissolving nozzles for the material introduced into the separator are provided in the separator under the material feed opening. The dissolution of the material introduced into the sifter is accordingly preferably not effected by opening rollers, but by means of dissolving nozzles which may be acted upon by tempered compressed air, which provide for a corresponding turbulence of the material supplied to the sifter via the feed opening. These dissolving nozzles have the additional effect of slowing the fall of the material into the sifter and thus prolonging the residence time of the material in the sifter. In order to be able to adjust the dissolving action in a wide range, it is advisable if the injection angle and / or the distance of the dissolving nozzles directed against the material flow are rotatable and height-adjustable with respect to the material feed opening by means of an adjusting device.

Da bei gegebenenfalls in einem derartigen Sichter auftretenden Staubexplosionen stets eine Gefährdung von umherstehenden Personen bzw. Gerätschaften vermieden werden soll empfiehlt es sich, wenn der Sichter an einer oberen Sichterwand im Bereich zwischen Materialaufgabeöffnung und Austrittsöffnung nach oben gerichtete Explosionsklappen aufweist. Mit der Erfindung besteht die Möglichkeit Staubexplosionsklappen an einer noch oben gerichteten Stelle des Querluftwindsichters vorzusehen, was aufgrund der Umlenkung des Materialstroms in den bekannten Vorrichtungen um 180° nicht möglich ist. Diese zumindest schräg nach oben gegen die Decke gerichteten Explosionsklappen bewirken dabei für eine möglichst geringe Gefährdung durch gegebenenfalls auftretende Staubexplosionen.Since any risk of surrounding persons or equipment should always be avoided in the case of dust explosions that may occur in such a separator, it is recommended that the separator has upwardly directed explosion flaps on an upper separator wall in the region between the material feed opening and the outlet opening. With the invention, it is possible to provide dust explosion flaps at a still upwardly directed point of Querluftwindsichters what due to the Deflection of the material flow in the known devices by 180 ° is not possible. These explosion flaps directed at least obliquely upwards against the ceiling in this case cause as little as possible a hazard from possibly occurring dust explosions.

Um das Sichtergebnis besonders fein über weite Bereiche Einstellen zu können, kann an einer Wand des Sichters im Bereich zwischen Materialaufgabeöffnung und Austrittöffnung, insbesondere im Nahbereich der Austrittsöffnung, eine den Querströmungsquerschnitt zwischen Eintrittsöffnungen und Austrittsöffnung bestimmende, verstellbare Leiteinrichtung vorgesehen sein. Diese Leiteinrichtung bewirkt vor den Auslaßöffnungen eine Art Düseneffekt mit im verengten Querschnitt erhöhten Strömungsgeschwindigkeiten, wodurch sich nicht nur der Sichtungseffekt einstellen, sonder auch Materialansammlungen in Bereichen vor den Austrittsöffnungen vermeiden lassen. Zu diesem Zweck können den Austrittsöffnungen zudem Klappen vorgeordnet sein, deren Anstellwinkel zur Sichtluftstromführung quer zum Sichtluftstrom einstellbar ist.In order to be able to adjust the visual result particularly finely over wide ranges, an adjustable guide device can be provided on a wall of the classifier in the region between the material feed opening and the outlet opening, in particular in the vicinity of the outlet opening, determining the crossflow cross section between inlet openings and outlet opening. This guide causes before the outlet openings a kind of nozzle effect with increased in the restricted cross-section flow rates, which not only adjust the sifting effect, but also can prevent material accumulation in areas in front of the outlet openings. For this purpose, the outlet openings may also be arranged in front of flaps whose angle of attack is adjustable to the view air flow guide transversely to the classifying air flow.

Durch die in einem erfindungsgemäßen Sichter vorgesehene horizontal bzw. schräg nach unten gerichtete Luftströmung kann ein hoher Materialdurchsatz bei gutem Sichtergebnis gewährleistet werden. Da gegenüber den üblichen Steigwindsichtern die Leichtfraktion nicht um 180° umgelenkt wird, ist eine Strähnenbildung bzw. Mattenbildung in der Sichterzone weitestgehend ausgeschlossen, wodurch das Sichtergebnis erheblich verbessert wird.By provided in a separator according to the invention horizontally or obliquely downwardly directed air flow, a high material throughput can be ensured with good visibility. Since the light fraction is not deflected by 180 ° compared to the usual climatic wind sifters, stratification or matting in the classifier zone is largely ruled out, as a result of which the visual result is considerably improved.

In der Zeichnung ist die Erfindung anhand eines Ausführungsbeispieles schematisch dargestellt. Es zeigen

  • Fig. 1 eine erfindungsgemäße Vorrichtung im Querschnitt und
  • Fig. 2 die Vorrichtung aus Fig. 1 in Ansicht auf die Austragsseite.
In the drawing, the invention is illustrated schematically using an exemplary embodiment. Show it
  • Fig. 1 a device according to the invention in cross section and
  • Fig. 2 the device off Fig. 1 in view of the discharge side.

Ein Sichter 1, also eine Vorrichtung zum Trennen von Grob- und Feinmaterial in einem Sichtluftstrom umfaßt ein Sichtergehäuse 2 mit zwei Materialaufgabeöffnungen 3 mit zugeordneten Dosiereinrichtungen in Form zweier Zellradschleusen 4, drei übereinander angeordnete Eintrittsöffnungen 5, 6, 7 für die Sichtluft, mehrere Austrittsöffnungen 8 zur Abfuhr von Sichtluft und gesichtetem Material sowie eine Austragseinrichtung 9 in Form einer Austragsschnecke für das aus dem Sichtluftstrom ausgeschiedene Grobmaterial.A classifier 1, ie a device for separating coarse and fine material in a classifying air stream, comprises a classifier housing 2 with two material feed openings 3 with associated metering devices in the form of two rotary valves 4, three inlet openings 5, 6, 7 arranged one above the other for the classifying air, a plurality of outlet openings 8 for the removal of classifying air and sighted material, and a discharge unit 9 in the form of a discharge screw for the coarse material separated from the classifying air stream.

Zweck Erzielung einer Querstromsichtung des Materials sind die Austrittsöffnungen 8 unterhalb der obersten Eintrittsöffnung 5 für die Sichtluft auf einer der Eintrittsöffnungen 5, 6, 7 gegenüberliegenden Seite des Sichters 1 angeordnet. Die Eintrittsöffnungen 5, 6, 7 sind zur Verbesserung der Querstromsichtung in Förderrichtung des Materials, also in Sichtluftstromrichtung zu den Austragsöffnungen hin stufenweise versetzt, wobei die für die Unterluft des Sichters sorgende Eintrittsöffnung 7 gegen die Austrittsöffnung 8 gerichtet ist, um ein Eindringen von Feinmaterial in den Austragsbereich für das Grobmaterial und Materialansammlungen im Übergangsbereich zwischen Austragsbereich und Austrittsöffnungen 8 zu vermeiden.Purpose Achieving a cross-current classification of the material, the outlet openings 8 below the uppermost inlet opening 5 for the classifying air on one of the inlet openings 5, 6, 7 opposite side of the classifier 1 are arranged. The inlet openings 5, 6, 7 are to improve the Querstromsichtung in the conveying direction of the material, ie gradually offset in Sichtluftstromrichtung to the discharge out, with the sorgende for the lower air of the classifier inlet opening 7 is directed against the outlet opening 8, to prevent penetration of fine material in to avoid the discharge area for the coarse material and material accumulation in the transition region between the discharge area and outlet openings 8.

Der Winkel α zwischen den Flächennormalachsen der Materialaufgabeöffnung 3 und den Austrittsöffnungen 8 beträgt im dargestellten Ausführungsbeispiel rund 135°. Durch die horizontal bzw. schräg nach unten gerichtete Sichtluftströmung wird eine Strähnen- bzw. Mattenbildung im Sichtluftstrom vermieden und das Grobmaterial besonders sauber aus dem Luftstrom herausgelöst. Die den einzelnen Eintrittsöffnungen 5, 6, 7 zugeführten Luftströme können je nach Bedarf hinsichtlich Durchsatz und Temperatur geregelt werden.The angle α between the surface normal axes of the material feed opening 3 and the outlet openings 8 is in the illustrated embodiment about 135 °. By horizontally or obliquely downwardly directed Sichtluftströmung a strands or mats is avoided in the classifying air stream and the coarse material particularly cleanly dissolved out of the air stream. The individual inlet openings 5, 6, 7 supplied air streams can be controlled as needed in terms of throughput and temperature.

Im dargestellten Ausführungsbeispiel sind der Materialausgabeöffnung 3 Trocknungslufteinbringungsöffnungen 10 zugeordnet, über welche das in den Sichter 1 aufgegebene Material gegebenenfalls zwecks Trocknung unmittelbar nach Eintritt in den Sichter 1 mit Heißluft beaufschlagt werden kann. Unter den Materialaufgabeöffnungen 3 sind Auflösedüsen 11 für das in den Sichter 1 eingebrachte Material vorgesehen, welche Auflösedüsen 11 für eine entsprechende Durchwirbelung des in den Sichter 1 eingebrachten Materials sorgen und dabei gegebenenfalls vorhandene Materialknäuel bzw. -anhäufungen auflösen. Der Einblaswinkel und der Abstand der gegen den Materialstrom gerichteten Auflösedüsen 11 bezüglich der Materialaufgabeöffnungen 3 ist mittels einer nicht näher dargestellten Stellvorrichtung einstellbar. Um den Sichter 1 zugleich als Trocknungsvorrichtung nutzten zu können, kann dem Sichter 1 eine nicht dargestellte Heizvorrichtung für die Sichtluft bzw. Trocknungsluft zugehören.In the illustrated embodiment, the material discharge opening 3 are associated with drying air introduction openings 10, via which the material introduced into the separator 1 can optionally be subjected to hot air for the purpose of drying immediately after entering the classifier 1. Dissolving nozzles 11 for the material introduced into the sifter 1 are provided below the material application openings 3, which provide dissolution nozzles 11 for a corresponding turbulence of the material introduced into the sifter 1 and thereby dissolve any existing material wads or accumulations. The inlet angle and the distance from the material flow directed dissolution nozzle 11 with respect to the material application openings 3 is adjustable by means of an adjusting device, not shown. In order to be able to use the classifier 1 as a drying device at the same time, the classifier 1 can be associated with a heating device (not shown) for the classifying air or drying air.

Zur Vermeidung einer Gefährdung von Personen bei eventuell auftretenden Staubexplosionen sind außerhalb eines etwaigen Gefahrenbereichs angeordnete Staubexplosionsklappen 13 vorgesehen, die an einer oberen Sichterwand 14 im Bereich zwischen Materialaufgabeöffnungen 3 und Austrittsöffnungen 8 nach oben ausgerichtet sind. Zur Einstellung der Strömungsgeschwindigkeit vor den Austrittsöffnungen sind an einer Wand des Sichters 1 im Bereich zwischen Materialaufgabeöffnung 3 und Austrittsöffnungen 8 im Nahbereich der Austrittsöffnungen 8 eine den Querströmungsquerschnitt zwischen Eintrittsöffnungen 5, 6, 7 und Austrittsöffnungen 8 bestimmende verstellbare Leiteinrichtung 15 und den Austrittsöffnungen 8 vorgeordnete Klappen 16 vorgesehen, deren Anstellwinkel zur Sichtluftstromführung quer zum Sichtluftstrom einstellbar ist.In order to avoid endangering persons in the case of possibly occurring dust explosions, dust explosion flaps 13 arranged outside of any danger zone are provided, which are aligned upward on an upper classifier wall 14 in the region between material feed openings 3 and outlet openings 8. To adjust the flow velocity in front of the outlet openings are on a wall of the classifier 1 in the area between material feed opening 3 and outlet openings 8 in the vicinity of the outlet openings 8 a Querströmungsquerschnitt between inlet openings 5, 6, 7 and outlet openings 8 defining adjustable guide 15 and the outlet openings 8 upstream valves 16 provided, the angle of attack is adjustable to the classifying air flow guide transversely to the classifying airflow.

Wie insbesondere der Fig. 2 entnommen werden kann, ist die Sichterbreite wegen eines modulartigbeliebigen Aufbaus des Gehäuses beliebig groß wählbar, um die Vorrichtung einem zur erzielenden Materialdurchsatz vorab in einfacher Weise anpassen zu können.How the particular Fig. 2 can be removed, the classifier width is arbitrarily large because of a modular design of the housing arbitrarily large, in order to adjust the device in advance to achieve the material throughput in advance in a simple manner.

Claims (10)

  1. Apparatus for separating coarse and fine material in a stream of separating air of a separator (1) which includes at least one material feed opening (3), at least two inlet openings (5, 6, 7) arranged one above the other for the separating air, at least one outlet opening (8) for discharging separating air and separated material, and a discharging device (9) for the segregated coarse material, wherein the at least one outlet opening (8) is arranged on a side of the separator (1) opposite the inlet opening (5) for the purpose of achieving a cross-flow separation of the material below the uppermost inlet opening (5) for the separating air,
    characterised in that the inlet openings (5, 6, 7) for the separating air are offset in a step-wise manner so as to improve the cross-flow separation in the conveying direction of the material, i.e., in the direction of the stream of separating air towards the discharge opening (8), wherein the lower inlet opening (7) for the lower air of the separator is preferably directed towards the at least one outlet opening (8).
  2. Apparatus as claimed in claim 1, characterised in that at least three inlet openings (5, 6, 7) arranged one above the other are provided for the separating air, of which the upper two inlet openings (5, 6) are arranged at least substantially above the at least one outlet opening (8).
  3. Apparatus as claimed in claim 1 or 2, characterised in that the surface normal axes of the material feed opening (3) and the outlet opening (8) form an angle (α) of 90 to 180°, in particular 120 to 150°.
  4. Apparatus as claimed in any one of claims 1 to 3, characterised in that the material feed opening (3) is allocated openings (10) for the introduction of drying air.
  5. Apparatus as claimed in any one of claims 1 to 4, characterised in that dispersion nozzles (11) for the material introduced into the separator (1) are provided in the separator (1) below the material feed opening (3).
  6. Apparatus as claimed in claim 5, characterised in that the injection angle and/or the distance between the dispersion nozzles (11), directed against the material flow, and the material feed opening (3) can be adjusted by means of an adjustment apparatus.
  7. Apparatus as claimed in any one of claims 1 to 6, characterised in that the separator (1) is allocated a heating apparatus for the separating air.
  8. Apparatus as claimed in any one of claims 1 to 7, characterised in that the separator (1) comprises upwardly directed dust explosion valves (13) on an upper separator wall (14) in the region between the material feed opening (3) and outlet opening (8).
  9. Apparatus as claimed in any one of claims 1 to 8, characterised in that an adjustable guide device (15) determining the cross-flow cross-section between the inlet openings (5) and outlet opening (8) is provided on a wall of the separator (1) in the region between the material feed opening (3) and outlet opening (8), in particular in the region close to the outlet opening (8).
  10. Apparatus as claimed in any one of claims 1 to 9, characterised in that valves (16) are arranged upstream of the outlet openings (8), the setting angle of which being adjustable transverse to the stream of separating air so as to guide the stream of separating air.
EP07450152.9A 2006-09-18 2007-09-04 Device for separating coarse and fine material Not-in-force EP1900445B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200620014455 DE202006014455U1 (en) 2006-09-18 2006-09-18 Coarse and fine material separating device for use in separating air current of separator, has outlet that is arranged for purpose of cross flow review of material below upper inlet for separation air on side opposite to inlet of separator

Publications (2)

Publication Number Publication Date
EP1900445A1 EP1900445A1 (en) 2008-03-19
EP1900445B1 true EP1900445B1 (en) 2015-08-05

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016117384A1 (en) 2016-09-15 2018-03-15 Siempelkamp Maschinen- Und Anlagenbau Gmbh sifter
DE102016117383A1 (en) 2016-09-15 2018-03-15 Siempelkamp Maschinen- Und Anlagenbau Gmbh sifter
DE102018005205A1 (en) 2018-06-29 2020-01-02 Siempelkamp Maschinen- Und Anlagenbau Gmbh Classifier and method for classifying

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUD20070079A1 (en) * 2007-04-30 2008-11-01 Pal S R L EQUIPMENT AND PROCEDURE FOR SEPARATING CONTAMINATING PARTICLES FROM AN INCOERENTAL MASS OF WOODEN MATERIAL AND / OR VEGETABLE FIBERS
WO2014201182A1 (en) * 2013-06-11 2014-12-18 Battelle Memorial Institute Device and method for cross-flow separation
WO2015113769A1 (en) * 2014-01-31 2015-08-06 Thyssenkrupp Industrial Solutions Ag Separator with a bypass
DE102017110600B4 (en) * 2017-05-16 2023-09-07 Siempelkamp Maschinen- Und Anlagenbau Gmbh sifter
DE102017120033B4 (en) 2017-08-31 2024-02-08 Siempelkamp Maschinen- Und Anlagenbau Gmbh Device for separating and/or recovering silicate particles from plant material
DE102017120043B3 (en) 2017-08-31 2018-12-20 Siempelkamp Maschinen- Und Anlagenbau Gmbh Plant and method for the production of glued plant particles

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE907145C (en) 1952-08-12 1954-03-22 Benno Schilde Maschb Ag Air classifier and air classifier
DE1224132B (en) 1959-11-27 1966-09-01 Standard Filterbau Gmbh Device for sifting grainy material into different grain classes
EP0316622B1 (en) * 1987-11-20 1993-08-04 General Electric Company Method and apparatus for elutriation of shaped particles of polymeric resin
US5259510A (en) * 1992-03-31 1993-11-09 Edward Lowe Industries, Inc. Apparatus for separating and removing fine particulates from a particle flow
AT403133B (en) 1996-03-14 1997-11-25 Scheuch Alois Gmbh SAFE

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016117384A1 (en) 2016-09-15 2018-03-15 Siempelkamp Maschinen- Und Anlagenbau Gmbh sifter
DE102016117383A1 (en) 2016-09-15 2018-03-15 Siempelkamp Maschinen- Und Anlagenbau Gmbh sifter
DE102016117384B4 (en) 2016-09-15 2023-08-10 Siempelkamp Maschinen- Und Anlagenbau Gmbh sifter
DE102016117383B4 (en) 2016-09-15 2023-09-21 Siempelkamp Maschinen- Und Anlagenbau Gmbh Sifter
DE102018005205A1 (en) 2018-06-29 2020-01-02 Siempelkamp Maschinen- Und Anlagenbau Gmbh Classifier and method for classifying
DE102018005205B4 (en) 2018-06-29 2024-06-20 Siempelkamp Maschinen- Und Anlagenbau Gmbh Sifters and sifting methods

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EP1900445A1 (en) 2008-03-19

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