EP3062930B1 - High-pressure roller press with deaeration of material to be comminuted - Google Patents

High-pressure roller press with deaeration of material to be comminuted Download PDF

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Publication number
EP3062930B1
EP3062930B1 EP14793076.2A EP14793076A EP3062930B1 EP 3062930 B1 EP3062930 B1 EP 3062930B1 EP 14793076 A EP14793076 A EP 14793076A EP 3062930 B1 EP3062930 B1 EP 3062930B1
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EP
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Prior art keywords
comminuted
pressure roller
roller press
pressure
deaerating
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German (de)
French (fr)
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EP3062930A1 (en
Inventor
Siegfried Strasser
Stefan Seemann
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KHD Humboldt Wedag AG
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KHD Humboldt Wedag AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/286—Feeding devices

Definitions

  • the invention relates to a high-pressure roller press for high-pressure comminution of millbase in a nip comprising two counter-rotating rollers which form a nip which the millbase to be comminuted passes under high pressure during comminution and forms a break in the structure of the millbase in the nip, and a feed device.
  • the millbase gives evenly to the nip
  • the volume of the abandoned millbase forms a Kompaktzone above the nip
  • a method for preventing vibrations in the task of millbase on a high-pressure roll press which has a nip and an overlying feeder.
  • High-pressure roller presses consist of at least two counter-rotating rollers forming a narrow nip between them, through which the material to be ground is pulled and subjected to a high pressing pressure in the nip.
  • the millbase passes through more than one passage of the high-pressure roller press, from the circulating grinding material is always the fine-grained to dust-like millbase is selected by appropriate separation stages.
  • the circulating material in the circuit is very fine-grained or has a high proportion of fine-grained to dust-fine material to be ground, this can lead to vibrations in the high-pressure roller press.
  • One cause of these vibrations is the high porosity of the material to be ground, which is formed by air inclusions in the fine material to be ground, the air inclusions are introduced by the classifier air in the separation stage in the material to be ground.
  • Very fine ground material has a noticeably lower bulk density due to the disperse distribution in the air during precipitation.
  • the air trapped in the fine and partially fluidized or highly air-mixed millbase is forced out of the millbase by the pressure in the nip between the rolls of the high-pressure roll press.
  • the case suddenly escaping air leads to a sudden pressure drop in the nip, which under the resonance favoring circumstances, the roller of the high-pressure roller press gets into a vibratory motion.
  • the vibratory motion helps deflate the regrind so that mechanical vibration excitation may occur at the resonant frequency of the high-pressure roll press and damage to the roll surface and other components of the high-pressure roll press may occur. Air pockets in the regrind of a high-pressure roller press should therefore be avoided if possible.
  • U.S. Patent US5,271,319 discloses a roller mill having a screw conveyor for forced conveying the ground material on the nip. Similar to the European patent application EP1946844A1
  • the walls of the auger device are porous at the downwardly facing tip of the auger. These porous walls lead to venting chambers, via which air escaping from the millbase is sucked off.
  • a venting device immediately above the compaction zone between the rolls of a high-pressure roll press a venting device is provided, wherein further extends a line for Mahloswashkeit for humidification of the ground material in the volume of the abandoned ground material and extends into the venting device.
  • the venting device may be formed as a bell and protect the compaction zone in the upward direction before falling into the nip grinding stock. It is provided in this embodiment that the millbase flows past on the sides of the venting device designed as a bell. Since the ground material is partially fluidized after passage of a grinding circuit, this has a larger amount of adsorbed air and air trapped in the fluidizate. If regrind is now on the compaction zone, a venting device can absorb and discharge the escaping air.
  • vent works better and thus vibration can be avoided, can be provided in an advantageous embodiment that the vent is supported by negative pressure.
  • Another cumulative measure for vacuum assist is to wet the ground stock just before it is drawn into the nip.
  • the partially fluidized millbase collapses because capillary forces and wetting of the fine millbase particles lead to a compaction of the millbase or because the auxiliary grinding fluid introduced for moistening fills in interspaces between the millbase granules of the millbase.
  • the air suspended or adsorbed in the millbase escapes and can be collected by a collecting bell projecting into the millbase in the feed chute of a high-pressure roller press and sucked through a vent line.
  • This vent line may be connected to a vacuum line to assist in collapsing the partially fluidized millbase.
  • a preferred embodiment of the high-pressure roller press has a height-adjustable ventilation device. This is located within the feeder, which is located above the nip of a high-pressure roller press is. By the height adjustment, it is possible to control the amount of the millbase flowing on the nip per unit time. It is possible that the height adjustment is made manually, but it is also possible that the height adjustment is made as a control loop, being selected as a control input, the electrical power consumption of drive motors of the rollers of the high-pressure roller press or even amplitudes and frequencies of vibration measuring devices.
  • FIG. 1 a simple sketch of a high-pressure roller press according to the invention is represented, which is represented by two fixed / Loswalzen 1 and 2. It is a hard roller 2, which is firmly anchored in a not shown here machine frame and a Loswalze 1, which is characterized by the horizontal in the middle of the Loswalze 2 double arrow.
  • the Loswalze 1 can perform compensatory movements, so that a passage of larger Mahlgut Swissen of lying between the two rolls 1, 2 roll gap WS is possible.
  • a feeding device 3 Above the two rolls 1 and 2 is a feeding device 3, which is continuously filled with grinding stock 4 from above, and with such an amount per unit time that the Mahlgutapt within the feeder 3 remains approximately constant.
  • a stationary roof 5 which protects an underlying venting device 6 before nachf passdem millbase 4 by itenfinifmitteddes regrind 4, which is protected within a bed in front of the abrasive material to be ground 4.
  • the venting device 6 is adjustably adjusted in height within a bed, wherein in the vertical process two leg plates 6.1 and 6.2 extend and control the inflow of fresh material to be ground 4 in the Kompaktzone, which is illustrated by a drawn circle 4.1.
  • a vacuum line 10 may be connected to the air discharge line 9, which builds up such a large negative pressure in the compaction zone 4.1 that not only suddenly escaping air flows quickly, but optionally the material to be ground 4 at the river between hard roller 2 and leg 6.2 or is vented at the river between Loswalze 1 and leg 6.1.
  • the fine material to be ground 4 collapses and experiences a higher bulk density.
  • the material to be ground 4 through a line 7 for Mahloswashkeit that extends into the volume of the ground material 4 and extends into the venting device 6 is humidified by a connection 8 for supplying a Mahloswashkeit.
  • This line 7b for Mahloswashkeit has at its end a liquid nozzle for copesstechniksseindüsung in the Kompaktzone 4.1 and thus in the nip WS.
  • the moistening of the millbase 4 in the compaction zone 4.1 causes a sudden venting of the partially fluidized millbase 4 by capillary forces and wetting, which pulls the individual fine Mahlgutteilchen together and thereby releases air.
  • the capillary forces act on a rather fine regrind by adhesion of the small millbase granules.
  • Mahlgutkörnern that form larger cavities between them, the introduced Mahlcous hangkeit can fill exactly these cavities and thus form a non-compactable space between the Mahlgutteilchen.
  • the gap filled by the auxiliary grinding fluid and therefore not compactable results in no sudden decrease in volume in the nip during comminution, which leads to undesired vibration of the high-pressure roller press can.
  • the grinding auxiliary liquid applied to the compaction zone 4.1 is removed in the circulatory system by the air classification of the fine millbase 4.
  • the introduced Mahloswashkeit fills cavities in the millbase.
  • the inventive method which in the high-pressure roll press after FIG. 1 is performed, avoids the venting of the ground material 4 in the region of the Kompaktzone 4.1 vibrations of the high-pressure roller press, which arise from the fact that recurring air escapes from the material to be ground 4 suddenly and thereby regrind 4 collapses in the Kompaktzone 4.1.
  • the drives of the idler roller 2 and the hard roller 1 experience less drive resistance and the rollers 1, 2 are accelerated for a fraction of a second.
  • the rollers 1 and 2 pull an increased amount of material to be ground 4 in the Kompaktzone 4.1 whereby the nip WS is temporarily overloaded and the two rollers 1 and 2 decelerates.
  • the material to be ground 4 collapses again in the compaction zone 4.1, whereby a renewed cycle of acceleration and deceleration begins.
  • the entire high-pressure roller press can start to vibrate.
  • the inventive method namely the venting of the material to be ground 4 immediately above the Kompaktzone 4.1 these vibrations are avoided.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Description

Die Erfindung betrifft eine Hochdruckwalzenpresse zur Hochdruckzerkleinerung von Mahlgut in einem Walzenspalt, aufweisend zwei gegenläufige Walzen, die einen Walzenspalt ausbilden, welchen das zu zerkleinernde Mahlgut bei der Zerkleinerung unter Hochdruck passiert und dabei im Walzenspalt einen Bruch im Gefüge des Mahlguts ausbildet, und eine Aufgabevorrichtung, die das Mahlgut gleichmäßig auf den Walzenspalt aufgibt, wobei das Volumen des aufgegebenen Mahlguts eine Kompaktionszone oberhalb des Walzenspaltes ausbildet und ein Verfahren zur Vermeidung von Vibrationen bei der Aufgabe von Mahlgut auf eine Hochdruckwalzenpresse, die einen Walzenspalt und eine darüber angeordnete Aufgabevorrichtung aufweist.The invention relates to a high-pressure roller press for high-pressure comminution of millbase in a nip comprising two counter-rotating rollers which form a nip which the millbase to be comminuted passes under high pressure during comminution and forms a break in the structure of the millbase in the nip, and a feed device. the millbase gives evenly to the nip, the volume of the abandoned millbase forms a Kompaktzone above the nip and a method for preventing vibrations in the task of millbase on a high-pressure roll press, which has a nip and an overlying feeder.

Es ist bekannt, zur Zerkleinerung von sprödem Mahlgut dieses durch eine Hochdruckbehandlung und unter Vermeidung einer scherenden Beanspruchung in einer Hochdruckwalzenpresse zu zerkleinern. Diese Art der Zerkleinerung eignet sich für spröde Materialien, wie z.B. Erze oder Zement, also für Materialien, die nur begrenzt plastisch verformbar sind.It is known to comminute this for comminution of brittle regrind by high pressure treatment and avoiding a shearing stress in a high pressure roller press. This type of comminution is suitable for brittle materials, e.g. Ores or cement, ie for materials that are only limited plastically deformable.

Hochdruckwalzenpressen bestehen aus mindestens zwei gegenläufig rotierenden, zwischen sich einen schmalen Walzenspalt bildenden Walzen, durch die das Mahlgut hindurch gezogen und im Walzenspalt einem hohen Pressdruck unterzogen wird. In einer Kreislaufmahlanlage durchläuft das Mahlgut mehr als eine Passage der Hochdruckwalzenpresse, wobei aus dem im Kreislauf befindlichen Mahlgut stets das feinkörnige bis staubförmige Mahlgut durch entsprechende Trennstufen ausgesichtet wird.High-pressure roller presses consist of at least two counter-rotating rollers forming a narrow nip between them, through which the material to be ground is pulled and subjected to a high pressing pressure in the nip. In a Kreislaufmahlanlage the millbase passes through more than one passage of the high-pressure roller press, from the circulating grinding material is always the fine-grained to dust-like millbase is selected by appropriate separation stages.

Ist das im Kreislauf befindliche Mahlgut sehr feinkörnig oder hat es einen hohen Anteil von feinkörnigem bis staubfeinen Mahlgut, so kann dies zu Vibrationen in der Hochdruckwalzenpresse führen. Eine Ursache für diese Vibrationen ist die hohe Porosität des Mahlgutes, welches durch Lufteinschlüsse im feinen Mahlgut gebildet wird, wobei die Lufteinschlüsse durch die Sichterluft in der Trennstufe in das Mahlgut eingebracht werden. Sehr feines Mahlgut weist durch die disperse Verteilung in der Luft beim Niederschlag eine auffallend niedrigere Schüttdichte auf. Bei der Hochdruckbeanspruchung des Mahlgutes in der Hochdruckwalzenpresse wird die in dem feinen und teilfluidisierten oder noch hochgradig luftdurchmischten Mahlgut eingeschlossene Luft durch den Druck im Walzenspalt zwischen den Walzen der Hochdruckwalzenpresse aus dem Mahlgut herausgepresst. Die dabei schlagartig entweichende Luft führt zu einem plötzlichen Druckabfall im Walzenspalt, wodurch unter die Resonanz begünstigenden Umständen die Walze der Hochdruckwalzenpresse in eine Schwingungsbewegung gerät. Die Schwingungsbewegung unterstützt die Luftentleerung des Mahlguts, so dass eine mechanische Schwingungsanregung bei Resonanzfrequenz der Hochdruckwalzenpresse auftreten und wodurch Schaden an der Walzenoberfläche und anderen Bauteilen der Hochdruckwalzenpresse entstehen kann. Lufteinschlüsse im Mahlgut einer Hochdruckwalzenpresse sind daher nach Möglichkeit zu vermeiden.If the circulating material in the circuit is very fine-grained or has a high proportion of fine-grained to dust-fine material to be ground, this can lead to vibrations in the high-pressure roller press. One cause of these vibrations is the high porosity of the material to be ground, which is formed by air inclusions in the fine material to be ground, the air inclusions are introduced by the classifier air in the separation stage in the material to be ground. Very fine ground material has a noticeably lower bulk density due to the disperse distribution in the air during precipitation. During the high-pressure loading of the material to be ground in the high-pressure roll press, the air trapped in the fine and partially fluidized or highly air-mixed millbase is forced out of the millbase by the pressure in the nip between the rolls of the high-pressure roll press. The case suddenly escaping air leads to a sudden pressure drop in the nip, which under the resonance favoring circumstances, the roller of the high-pressure roller press gets into a vibratory motion. The vibratory motion helps deflate the regrind so that mechanical vibration excitation may occur at the resonant frequency of the high-pressure roll press and damage to the roll surface and other components of the high-pressure roll press may occur. Air pockets in the regrind of a high-pressure roller press should therefore be avoided if possible.

In der DE202009014079U1 wird eine Vibrationsvorrichtung offenbart, die bis an den Rand der Kompaktionszone heran oder sogar in diese hinein ragt. Die Vibrationsvorrichtung erleichtert die Entlüftung des Mahlguts, so dass die Luft nicht schlagartig aus dem teilfluidisiertem Mahlgut ähnlich einer kleinen Verpuffung entweicht, wodurch die Walzen einer Hochdruckrollenpresse gleichmäßiger und Resonanzschwingungsfrei rotieren. Die Vibrationsvorrichtung lockert das Mahlgut auf, erleichtert die Entlütung und vermeidet daher Vibrationen der Hochdruckrollenpresse.In the DE202009014079U1 discloses a vibratory device that extends up to the edge of the compaction zone or even into this. The vibration device facilitates the venting of the ground material, so that the air does not escape suddenly from the partially fluidized millbase similar to a small deflagration, whereby the rollers of a high-pressure roller press rotate more uniformly and resonance vibration free. The vibratory device loosens the material to be ground, makes it easier to deflate and therefore avoids vibrations of the high-pressure roller press.

In der DE 102006025833A1 wird eine Druckschnecke offenbart, die durch das nachfließende Mahlgut bis bis nah an die Kompaktionszone reicht. In diese Zone wird das feine Mahlgut aus dem Kreislauf eingefördert, wo es sich mit dem nachlaufenden groben Mahlgut vermischt. Diese Art der Mahlgutaufgabe macht sich eine Verdichtung des Mahlguts durch Mischung von feinem und grobem Mahlgut zu nutzen.In the DE 102006025833A1 discloses a pressure screw, which extends through the nachlaufendes ground material up to close to the compaction zone. In this zone, the fine ground material is conveyed from the circulation, where it mixes with the trailing coarse material to be ground. This type of Mahlgutaufgabe makes use of a compaction of the ground material by mixing fine and coarse material.

In der deutschen Patentschrift DE1141162 wird eine Entlüftungsvorrichtung und Absaugvorrichtung für eine Getreideflockenpresse für Frühstückslebensmittel offenbart, welche in der Getreidestärke vorhandene Luft und darin vorhandenes Wasser, die beim Pressen entweichen, ableiten soll. Dazu ist die Entlüftungsvorrichtung und Absaugvorrichtung etwa oberhalb des Walzenspaltes angeordnet. Die Ableitung von Luft und Wasser führt zu Getreideflocken, die gleichmäßig geröstet werden können.In the German patent DE1141162 For example, there is disclosed a venting device and suction device for a cereal flake press for breakfast foods which is intended to dissipate air present in the grain starch and water therein which escape during pressing. For this purpose, the ventilation device and suction device is arranged approximately above the nip. The discharge of air and water leads to cereal flakes, which can be roasted evenly.

Eine weitere Ausbildung dieser Getreideflockenpresse für Frühstückslebensmittel wird in der US-Patentschrift US 3,029,723 offenbart, wobei die Absaugvorrichtung als poröser Keil parallel zum Walzenspalt innerhalb der Aufgabevorrichtung angeordnet ist. Die Ableitung von Luft und Wasser führt zu Getreideflocken, die gleichmäßig geröstet werden können.Another training of this cereal flake press for breakfast foods will be in the U.S. Patent No. 3,029,723 discloses, wherein the suction device is arranged as a porous wedge parallel to the nip within the feeder. The discharge of air and water leads to cereal flakes, which can be roasted evenly.

In der europäischen Patentanmeldung EP1946844A1 wird eine Walzenmühle für Minerale geschildert. Diese weist in der oberhalb des Walzenspaltes vorhandenen Aufgabevorrichtung eine Druckförderschnecke auf, wobei die Wände der Förderschneckenvorrichtung an der nach unten weisenden Spitze der Förderschnecke porös ausgestaltet sind. Durch die porösen Wände soll Luft bei der Kompaktierung entweichen.In the European patent application EP1946844A1 a roller mill for minerals is described. This has in the feed device above the nip on a pressure screw conveyor, wherein the walls of the screw conveyor device are designed to be porous at the downwardly pointing tip of the screw conveyor. The porous walls allow air to escape during compaction.

In dem US-Patent US 3,114,930 wird über eine Vorrichtung zur Kompaktierung und zur Granulierung von pulverigem Material, wie zum Beispiel Melaminharzgranulat berichtet. In der Vorrichtung wird das zu granulierende Material mit Druckschnecken unter Zwang in den Walzenspalt zweier Kompaktierungswalzen gefördert. Am nach oben weisenden Fuß der Förderschnecke ist eine Vakuumpumpe angeordnet, die Luft aus dem zu granulierenden Material absaugen soll. In der europäischen Patentanmeldung EP 0548579A2 wird eine Hochdruckwalzenpresse offenbart, die oberhalb einer sich innerhalb der Aufgabevorrichtung ausbildenden Böschung des Mahlguts eine Saugleitung zur Entstaubung aufweist.By doing U.S. Patent US 3,114,930 is reported on a device for compaction and granulation of powdery material, such as melamine resin granules. In the apparatus, the material to be granulated with pressure screws under duress in the nip of two compaction rolls promoted. At the upwardly facing foot of the screw conveyor, a vacuum pump is arranged to suck the air from the material to be granulated. In the European patent application EP 0548579A2 discloses a high-pressure roller press, which has a suction line for dedusting above an emerging within the feeder embankment of the ground material.

In dem US-Patent US5,271,319 wird eine Walzenmühle offenbart, die eine Förderschnecke zur Zwangsförderung des Mahlguts auf den Walzenspalt aufweist. Ähnlich wie in der europäischen Patentanmeldung EP1946844A1 sind die Wände der Förderschneckenvorrichtung an der nach unten weisenden Spitze der Förderschnecke porös. Diese porösen Wände führen zu Entlüftungskammern, über welche aus dem Mahlgut entweichende Luft abgesaugt wird.By doing U.S. Patent US5,271,319 discloses a roller mill having a screw conveyor for forced conveying the ground material on the nip. Similar to the European patent application EP1946844A1 For example, the walls of the auger device are porous at the downwardly facing tip of the auger. These porous walls lead to venting chambers, via which air escaping from the millbase is sucked off.

In der europäischen Patentschrift EP0527333A1 wird schließlich gelehrt, das Mahlgut zumindest in einem Bypassstrom zu befeuchten und damit das gesamte Mahlgut auf eine bestimmte Zielfeuchte zu bringen.In the European patent specification EP0527333A1 Finally, it is taught to moisten the material to be ground at least in a bypass stream and thus bring the entire material to a certain target moisture.

Aufgabe der vorliegenden Erfindung ist es, ein Verfahren und eine dazu korrespondierende zur Verfügung zu stellen, mit dem Vibrationen in Hochdruckwalzenpresse, die durch Lufteinschlüsse im Mahlgut verursacht werden, vermieden werden kann.It is an object of the present invention to provide a method and a corresponding method with which vibrations in the high-pressure roll press caused by air inclusions in the millbase can be avoided.

Die Aufgabe wird gelöst, durch eine Hochdruckwalzenpresse nach Anspruch 1. Vorteilhafte Ausgestaltungen der Erfindung finden sich in den Unteransprüchen 2 bis 4.The object is achieved by a high pressure roller press according to claim 1. Advantageous embodiments of the invention can be found in the dependent claims 2 to 4.

Die Verfahrensaufgabe wird gelöst durch ein Verfahren gemäß den Merkmalen von Anspruch 5. Vorteilhafte Ausgestaltungen der Verfahrenserfindung sind in den Unteransprüchen 6 bis 8 angegeben.The method task is solved by a method according to the features of claim 5. Advantageous embodiments of the method invention are given in the dependent claims 6 to 8.

Nach der Erfindung ist vorgesehen, dass unmittelbar oberhalb der Kompaktionszone zwischen den Walzen einer Hochdruckwalzenpresse eine Entlüftungsvorrichtung vorgesehen ist, wobei des Weiteren eine Leitung für Mahlhilfsflüssigkeit zur Befeuchtung des Mahlguts in das Volumen des aufgegebenen Mahlguts hineinreicht und bis in die Entlüftungsvorrichtung reicht. Die Entlüftungsvorrichtung kann als Glocke ausgebildet sein und die Kompaktionszone in nach oben gerichteter Richtung vor in den Walzenspalt fallendem Mahlgut schützen. Es ist in dieser Ausgestaltung vorgesehen, dass das Mahlgut an den Seiten der als Glocke ausgestalteten Entlüftungsvorrichtung vorbeifließt. Da das Mahlgut nach Passage eines Mahlkreislaufes teilfluidisiert ist, weist dies eine größere Menge adsorbierter Luft und in dem Fluidisat gefangene Luft auf. Liegt nun Mahlgut auf der Kompaktionszone so kann eine Entlüftungsvorrichtung die entweichende Luft aufnehmen und ableiten.According to the invention, it is provided that immediately above the compaction zone between the rolls of a high-pressure roll press a venting device is provided, wherein further extends a line for Mahlhilfsflüssigkeit for humidification of the ground material in the volume of the abandoned ground material and extends into the venting device. The venting device may be formed as a bell and protect the compaction zone in the upward direction before falling into the nip grinding stock. It is provided in this embodiment that the millbase flows past on the sides of the venting device designed as a bell. Since the ground material is partially fluidized after passage of a grinding circuit, this has a larger amount of adsorbed air and air trapped in the fluidizate. If regrind is now on the compaction zone, a venting device can absorb and discharge the escaping air.

Damit die Entlüftung besser funktioniert und auch damit Vibrationen vermieden werden, kann in einer vorteilhaften Ausgestaltung vorgesehen sein, dass die Entlüftung durch Unterdruck unterstützt wird.Thus, the vent works better and thus vibration can be avoided, can be provided in an advantageous embodiment that the vent is supported by negative pressure.

Eine weitere und zur Unterdruckunterstützung kumulative Maßnahme ist das Befeuchten des Mahlguts kurz bevor dies in den Walzenspalt gezogen wird. Dadurch kollabiert das teilfluidisierte Mahlgut, weil Kapillarkräfte und Benetzung der feinen Mahlgutpartikel zu einer Verdichtung des Mahlguts führen oder weil die zur Befeuchtung eingebrachte Mahlhilfsflüssigkeit Zwischenräume zwischen den Mahlgutkörnern des Mahlguts ausfüllt. Dadurch entweicht die im Mahlgut suspendierte oder adsorbierte Luft und kann durch eine in das Mahlgut im Aufgabeschacht einer Hochdruckrollenpresse ragende Auffangglocke aufgefangen und durch eine Entlüftungsleitung abgesogen werden. Diese Entlüftungsleitung kann an eine Unterdruckleitung angeschlossen sein, um das Kollabieren des teilfluidisierten Mahlguts zu unterstützen.Another cumulative measure for vacuum assist is to wet the ground stock just before it is drawn into the nip. As a result, the partially fluidized millbase collapses because capillary forces and wetting of the fine millbase particles lead to a compaction of the millbase or because the auxiliary grinding fluid introduced for moistening fills in interspaces between the millbase granules of the millbase. As a result, the air suspended or adsorbed in the millbase escapes and can be collected by a collecting bell projecting into the millbase in the feed chute of a high-pressure roller press and sucked through a vent line. This vent line may be connected to a vacuum line to assist in collapsing the partially fluidized millbase.

Eine bevorzugte Ausführungsform der Hochdruckrollenpresse weist eine höhenverstellbare Entlüftungsvorrichtung auf. Diese befindet sich innerhalb der Aufgabevorrichtung, die oberhalb des Walzenspaltes einer Hochdruckrollenpresse angeordnet ist. Durch die Höhenverstellung ist es möglich, die Menge des auf den Walzenspalt fließenden Mahlguts pro Zeiteinheit zu kontrollieren. Es ist möglich, dass die Höheneinstellung manuell vorgenommen wird, aber es ist auch möglich, dass die Höheneinstellung als Regelschleife vorgenommen wird, wobei als Regeleingangsgröße die elektrische Leistungsaufnahme von Antriebsmotoren der Walzen der Hochdruckwalzenpresse oder auch Amplituden und Frequenzen von Vibrationsmessvorrichtungen gewählt werden.A preferred embodiment of the high-pressure roller press has a height-adjustable ventilation device. This is located within the feeder, which is located above the nip of a high-pressure roller press is. By the height adjustment, it is possible to control the amount of the millbase flowing on the nip per unit time. It is possible that the height adjustment is made manually, but it is also possible that the height adjustment is made as a control loop, being selected as a control input, the electrical power consumption of drive motors of the rollers of the high-pressure roller press or even amplitudes and frequencies of vibration measuring devices.

Die Erfindung wird anhand der folgenden Figuren näher erläutert. Es zeigt:

Fig. 1
eine einfache Skizze einer erfindungsgemäßen Rollenpresse mit eingezeichneter Vorrichtung zur Entlüftung
The invention will be explained in more detail with reference to the following figures. It shows:
Fig. 1
a simple sketch of a roller press according to the invention with marked device for venting

In Figur 1 ist eine einfache Skizze einer erfindungsgemäßen Hochdruckrollenpresse dargestellt, die durch zwei Fest-/Loswalzen 1 und 2 repräsentiert wird. Dabei handelt es sich um eine Festwalze 2, die in einem hier nicht eingezeichneten Maschinenrahmen fest verankert ist und um eine Loswalze 1, die durch den in der Mitte der Loswalze 2 horizontal liegenden Doppelpfeil charakterisiert ist. Die Loswalze 1 kann Ausgleichsbewegungen durchführen, damit eine Passage von größeren Mahlgutstücken des zwischen beiden Walzen 1, 2 liegenden Walzenspalts WS möglich ist. Oberhalb der beiden Walzen 1 und 2 befindet sich eine Aufgabevorrichtung 3, die kontinuierlich von oben mit Mahlgut 4 gefüllt wird und zwar mit so einer Menge pro Zeiteinheit, dass der Mahlgutspiegel innerhalb der Aufgabevorrichtung 3 etwa konstant bleibt. Innerhalb des Mahlguts 4 befindet sich ein stationäres Dach 5, das eine darunter liegende Entlüftungsvorrichtung 6 vor nachfließendem Mahlgut 4 durch daran vorbeifließendes Mahlgut 4 schützt, die innerhalb eines Geschiebes vor dem abrasiven Mahlgut 4 geschützt liegt. Die Entlüftungsvorrichtung 6 ist innerhalb eines Geschiebes in der Höhe verstellbar ausgerichtet, wobei beim vertikalen Verfahren zwei Schenkelbleche 6.1 und 6.2 ausfahren und den Zufluss von frischem Mahlgut 4 in die Kompaktionszone, die durch einen eingezeichneten Kreis 4.1 verdeutlicht ist, kontrollieren. Damit die Kompaktionszone 4.1 stabil bleibt und nicht durch plötzlich entweichende Luft aus dem Mahlgut 4, das teilweise im Kreislauf befindlich ist und durch starkes Windsichten eine Teilfluidisierung in Luft erfahren hat, variiert oder plötzlich kollabiert, ist vorgesehen, dass oberhalb der Kompaktionszone 4.1 die Entlüftungsvorrichtung 6 Luft aus der Kompaktionszone abzieht. In vorteilhafter Ausgestaltung der Erfindung kann an der Luftabzugsleitung 9 eine Unterdruckleitung 10 angeschlossen sein, die einen so großen Unterdruck in über der Kompaktionszone 4.1 aufbaut, dass nicht nur plötzlich entweichende Luft schnell abfließt, sondern gegebenenfalls das Mahlgut 4 beim Fluss zwischen Festwalze 2 und Schenkel 6.2 oder beim Fluss zwischen Loswalze 1 und Schenkel 6.1 entlüftet wird. Dabei kollabiert das feine Mahlgut 4 und erfährt eine höhere Schüttdichte. Um die Schüttdichte des Mahlguts 4 kurz vor der Passage der Kompaktionszone 4.1 zu erhöhen, ist in vorteilhafter Ausgestaltung der Erfindung vorgesehen, dass das Mahlgut 4 durch eine Leitung 7 für Mahlhilfsflüssigkeit, die in das Volumen des Mahlguts 4 ragt und bis in die Entlüftungsvorrichtung 6 reicht, durch einen Anschluss 8 zur Zuführung einer Mahlhilfsflüssigkeit befeuchtet wird. Diese Leitung 7b für Mahlhilfsflüssigkeit weist an ihrem Ende eine Flüssigkeitsdüse zur Flüssigkeitseindüsung in die Kompaktionszone 4.1 und damit in den Walzenspalt WS auf.In FIG. 1 a simple sketch of a high-pressure roller press according to the invention is represented, which is represented by two fixed / Loswalzen 1 and 2. It is a hard roller 2, which is firmly anchored in a not shown here machine frame and a Loswalze 1, which is characterized by the horizontal in the middle of the Loswalze 2 double arrow. The Loswalze 1 can perform compensatory movements, so that a passage of larger Mahlgutstücken of lying between the two rolls 1, 2 roll gap WS is possible. Above the two rolls 1 and 2 is a feeding device 3, which is continuously filled with grinding stock 4 from above, and with such an amount per unit time that the Mahlgutspiegel within the feeder 3 remains approximately constant. Within the regrind 4 is a stationary roof 5, which protects an underlying venting device 6 before nachfließendem millbase 4 by it vorbeifließendes regrind 4, which is protected within a bed in front of the abrasive material to be ground 4. The venting device 6 is adjustably adjusted in height within a bed, wherein in the vertical process two leg plates 6.1 and 6.2 extend and control the inflow of fresh material to be ground 4 in the Kompaktzone, which is illustrated by a drawn circle 4.1. So that Compaction zone 4.1 remains stable and not by suddenly escaping air from the material to be ground 4, which is partially in circulation and has undergone strong Luftsichten Teilfluidisierung in air, varies or suddenly collapses, is provided that above the Kompakterzone 4.1, the ventilation device 6 air subtracts from the compaction zone. In an advantageous embodiment of the invention, a vacuum line 10 may be connected to the air discharge line 9, which builds up such a large negative pressure in the compaction zone 4.1 that not only suddenly escaping air flows quickly, but optionally the material to be ground 4 at the river between hard roller 2 and leg 6.2 or is vented at the river between Loswalze 1 and leg 6.1. The fine material to be ground 4 collapses and experiences a higher bulk density. In order to increase the bulk density of the material to be ground 4 shortly before the passage of the compaction zone 4.1, it is provided in an advantageous embodiment of the invention that the material to be ground 4 through a line 7 for Mahlhilfsflüssigkeit that extends into the volume of the ground material 4 and extends into the venting device 6 is humidified by a connection 8 for supplying a Mahlhilfsflüssigkeit. This line 7b for Mahlhilfsflüssigkeit has at its end a liquid nozzle for Flüssigkeitsseindüsung in the Kompaktzone 4.1 and thus in the nip WS.

Die Befeuchtung des Mahlguts 4 in der Kompaktionszone 4.1 bewirkt ein plötzliches Entlüften des teilfluidisierten Mahlguts 4 durch Kapillarkräfte und Benetzung, welche die einzelnen feinen Mahlgutteilchen aneinander zieht und dabei Luft freisetzt. Die Kapillarkräfte wirken bei einem eher feinen Mahlgut durch Adhäsion der kleinen Mahlgutkörnchen. Bei größeren Mahlgutkörnern, die zwischen sich größere Hohlräume ausbilden, kann die eingebrachte Mahlhilfsflüssigkeit genau diese Hohlräume ausfüllen und somit einen nicht kompaktierbaren Zwischenraum zwischen den Mahlgutteilchen ausbilden. Der durch die Mahlhilfsflüssigkeit ausgefüllte und daher nicht kompaktierbare Zwischenraum führt dazu, dass bei der Zerkleinerung keine plötzliche Volumenabnahme im Walzenspalt stattfindet, die zu unerwünschter Vibration der Hochdruckwalzenpresse führen kann. Die auf die Kompaktionszone 4.1 aufgegebene Mahlhilfsflüssigkeit wird im Kreislaufsystem durch das Windsichten des feinen Mahlguts 4 entfernt. Je nach Beschaffenheit der porösen Mahlgutschüttung ist es auch möglich, dass die eingebrachte Mahlhilfsflüssigkeit Hohlräume im Mahlgut ausfüllt.The moistening of the millbase 4 in the compaction zone 4.1 causes a sudden venting of the partially fluidized millbase 4 by capillary forces and wetting, which pulls the individual fine Mahlgutteilchen together and thereby releases air. The capillary forces act on a rather fine regrind by adhesion of the small millbase granules. For larger Mahlgutkörnern that form larger cavities between them, the introduced Mahlhilfsflüssigkeit can fill exactly these cavities and thus form a non-compactable space between the Mahlgutteilchen. The gap filled by the auxiliary grinding fluid and therefore not compactable results in no sudden decrease in volume in the nip during comminution, which leads to undesired vibration of the high-pressure roller press can. The grinding auxiliary liquid applied to the compaction zone 4.1 is removed in the circulatory system by the air classification of the fine millbase 4. Depending on the nature of the porous Mahlgutschüttung, it is also possible that the introduced Mahlhilfsflüssigkeit fills cavities in the millbase.

Bei dem erfindungsgemäßen Verfahren, das in der Hochdruckwalzenpresse nach Figur 1 durchgeführt wird, vermeidet die Entlüftung des Mahlguts 4 im Bereich der Kompaktionszone 4.1 Vibrationen der Hochdruckwalzenpresse, die dadurch entstehen, dass wiederkehrend Luft aus dem Mahlgut 4 plötzlich entweicht und dadurch Mahlgut 4 in der Kompaktionszone 4.1 kollabiert. In diesem kurzen Zeitraum erfahren die Antriebe der Loswalze 2 und der Festwalze 1 einen geringeren Antriebswiderstand und die Walzen 1,2 werden für einen Bruchteil einer Sekunde beschleunigt. Dabei ziehen die Walzen 1 und 2 eine erhöhte Menge Mahlgut 4 in die Kompaktionszone 4.1 wodurch der Walzenspalt WS kurzzeitig überladen wird und die beiden Walzen 1 und 2 abbremst. Gegebenenfalls kollabiert dabei das Mahlgut 4 in der Kompaktionszone 4.1 erneut, wodurch ein erneuter Zyklus von Beschleunigung und Abbremsung beginnt. Je nach Resonanzneigung der Hochdruckrollenpresse kann dabei die gesamte Hochdruckrollenpresse anfangen, zu vibrieren. Durch das erfindungsgemäße Verfahren, nämlich dem Entlüften des Mahlguts 4 unmittelbar über der Kompaktionszone 4.1 werden diese Vibrationen vermieden. BEZUGSZEICHENLISTE 1 Loswalze 7 Leitung für Mahlhilsflüssigkeit 2 Festwalze 8 Anschluss für Mahlhilsflüssigkeit 3 Aufgabevorrichtung 4 Mahlgut 9 Luftabzugsleitung 5 Dach 10 Unterdruckleitung 6 Entlüftungsvorrichtung In the inventive method, which in the high-pressure roll press after FIG. 1 is performed, avoids the venting of the ground material 4 in the region of the Kompaktzone 4.1 vibrations of the high-pressure roller press, which arise from the fact that recurring air escapes from the material to be ground 4 suddenly and thereby regrind 4 collapses in the Kompaktzone 4.1. In this short period of time, the drives of the idler roller 2 and the hard roller 1 experience less drive resistance and the rollers 1, 2 are accelerated for a fraction of a second. The rollers 1 and 2 pull an increased amount of material to be ground 4 in the Kompaktzone 4.1 whereby the nip WS is temporarily overloaded and the two rollers 1 and 2 decelerates. If necessary, the material to be ground 4 collapses again in the compaction zone 4.1, whereby a renewed cycle of acceleration and deceleration begins. Depending on the resonance tendency of the high-pressure roller press, the entire high-pressure roller press can start to vibrate. The inventive method, namely the venting of the material to be ground 4 immediately above the Kompaktzone 4.1 these vibrations are avoided. <I> LIST OF REFERENCES </ i> 1 floating roll 7 Line for grinding fluid 2 fixed roll 8th Connection for grinding fluid 3 feeder 4 grist 9 Air discharge line 5 top, roof 10 Vacuum line 6 venting device

Claims (8)

  1. High-pressure roller press for high-pressure comminution of material (4) to be comminuted in a roller gap, having
    - two counter-rotating rollers (1, 2) which configure a roller gap (WS) through which the material (4) to be comminuted passes upon comminution at high pressure, a rupture in the structure of the material (4) to be comminuted thereby being configured in the roller gap (WS);
    - a feeding device (3) which feeds the material (4) to be comminuted uniformly onto the roller gap (WS), the volume of the fed material (4) to be comminuted thereby configuring a compaction zone (4.1) above the roller gap (WS),
    wherein
    a deaeration device (6) for deaerating the material (4) to be comminuted is disposed directly above the compaction zone (4.1),
    characterized in that
    a line (7) for auxiliary comminution liquid for the humidification of the material (4) to be comminuted furthermore reaches into the volume of the fed material (4) to be comminuted and extends into the deaeration device (6).
  2. High-pressure roller press according to Claim 1,
    characterized in that
    the height position of the deaeration device (6) for deaerating the material (4) to be comminuted is configured so as to be height-adjustable.
  3. High-pressure roller press according to either of Claims 1 and 2,
    characterized in that
    the device (6) for deaerating the material (4) to be comminuted has a roof-shaped element by way of which subsequently inflowing material to be comminuted in the feed duct flows past the device.
  4. High-pressure roller press according to one of Claims 1 to 3,
    characterized in that
    a vacuum line (10) for deaerating the material (4) to be comminuted is connected to the deaeration device (6).
  5. Method for avoiding vibrations while feeding material (4) to be comminuted to a high-pressure roller press which has a roller gap (WS) and a feeding device (3) disposed thereabove,
    by
    deaerating the material (4) to be comminuted using a deaeration device (6) which is disposed directly above the compaction zone (4.1),
    characterized by
    humidification of the material (4) to be comminuted shortly before the latter is drawn into the roller gap, wherein a line (7) for auxiliary comminution liquid for the humidification of the material (4) to be comminuted reaches into the volume of the fed material (4) to be comminuted and extends into the deaeration device (6).
  6. Method according to Claim 5,
    wherein, in order for the amount of the material (4) to be comminuted that lies on the roller gap (WS) to be set, the height position of the deaeration device (6) for deaerating the material (4) to be comminuted is set.
  7. Method according to either of Claims 5 and 6,
    characterized by
    deaeration being supported by a vacuum line (10) which is connected to a deaeration device (6).
  8. Method according to either of Claims 6 and 7,
    characterized by
    the height position of the deaeration device (6) being regulated depending on the electrical power input to a drive for rollers (1, 2) of the high-pressure roller press, and/or depending on frequencies and amplitudes of measured vibrations of the high-pressure roller press.
EP14793076.2A 2013-10-31 2014-10-30 High-pressure roller press with deaeration of material to be comminuted Active EP3062930B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013018325.1A DE102013018325B4 (en) 2013-10-31 2013-10-31 High-pressure roller press with regrind removal and method for avoiding vibrations during the application of regrind
PCT/EP2014/073282 WO2015063195A1 (en) 2013-10-31 2014-10-30 High-pressure roller press with deaeration of material to be comminuted

Publications (2)

Publication Number Publication Date
EP3062930A1 EP3062930A1 (en) 2016-09-07
EP3062930B1 true EP3062930B1 (en) 2017-08-16

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DE (1) DE102013018325B4 (en)
DK (1) DK3062930T3 (en)
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WO (1) WO2015063195A1 (en)

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CN114100744A (en) * 2021-11-26 2022-03-01 江门市艾米卫浴科技有限公司 Bathroom hardware recycling equipment and operation method thereof

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Publication number Priority date Publication date Assignee Title
SU4860A1 (en) * 1925-12-24 1928-03-31 Н.И. Григорьев Combined Mill for the preparation of coal dust
US3069995A (en) * 1960-05-04 1962-12-25 Allis Chalmers Mfg Co Compacting device
US3029723A (en) * 1960-07-26 1962-04-17 Allis Chalmers Mfg Co Compacting device
US3114930A (en) * 1961-03-17 1963-12-24 American Cyanamid Co Apparatus for densifying and granulating powdered materials
NL141100B (en) * 1963-12-23 1974-02-15 Akzo Nv IMPROVEMENT OF AN ESTABLISHMENT FOR THE TREATMENT OF MULTI-FISH SUBSTANCES.
SU1830664A1 (en) * 1989-07-11 1996-10-20 Научно-производственное объединение прикладной механики Method and apparatus for fine mincing of coarse-minced raw meat material
DE4003342A1 (en) * 1990-02-05 1991-08-08 Koeppern & Co Kg Maschf Roller press for aerated solids - extracts surplus air into angled collector chambers laterally of vertical pass-line
DE4126899A1 (en) * 1991-08-14 1993-02-18 Krupp Polysius Ag METHOD AND APPENDIX FOR CRUSHING SPROEDEM GRILLS
DE4228058C2 (en) * 1992-08-24 1995-04-20 Kloeckner Humboldt Deutz Ag Plant and method for pressure treatment of granular goods
DE102006025833A1 (en) 2006-06-02 2007-12-06 Khd Humboldt Wedag Gmbh Roller press especially for comminution
ITTO20070029A1 (en) * 2007-01-18 2008-07-19 Sasil S P A HIGH COMPRESSION CYLINDER FOR GRINDING, AT VERY HIGH PUSH-LEVEL LEVELS OF NATURAL MINERALS AND INORGANIC SOLID PRODUCTS.
DE202009014079U1 (en) 2009-10-17 2009-12-31 Khd Humboldt Wedag Gmbh Roller press with device for pre-compacting the material to be ground

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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RU2016115809A (en) 2017-12-05
DE102013018325A1 (en) 2015-04-30
RU2016115809A3 (en) 2018-06-28
EP3062930A1 (en) 2016-09-07
DE102013018325B4 (en) 2019-03-21
DK3062930T3 (en) 2017-11-27
WO2015063195A1 (en) 2015-05-07
RU2675545C2 (en) 2018-12-19

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