EP0382827B1 - Process and device for cleaning conveying channels - Google Patents

Process and device for cleaning conveying channels Download PDF

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Publication number
EP0382827B1
EP0382827B1 EP89908819A EP89908819A EP0382827B1 EP 0382827 B1 EP0382827 B1 EP 0382827B1 EP 89908819 A EP89908819 A EP 89908819A EP 89908819 A EP89908819 A EP 89908819A EP 0382827 B1 EP0382827 B1 EP 0382827B1
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EP
European Patent Office
Prior art keywords
drum
motor
wall
channel
column
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP89908819A
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German (de)
French (fr)
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EP0382827A1 (en
Inventor
Heinrich Kaiser
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Preussag Stahl AG
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Preussag Stahl AG
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Priority to AT89908819T priority Critical patent/ATE84363T1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
    • F27D25/001—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag comprising breaking tools, e.g. hammers, drills, scrapers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/14—Charging or discharging liquid or molten material
    • F27D3/145—Runners therefor

Definitions

  • the invention relates to an improvement in a method and a device for cleaning refractory-lined conveyor troughs for molten metals and slags, in particular on furnaces, the cleaning being carried out by means of rotating chains.
  • the invention has for its object to provide a method for cleaning fireproof lined gutters for molten metals and slags, in particular for the device according to DE-PS 32 25 015, with which the cleaning process and the cleaning result the gutter lining is improved and, moreover, also to design the device for carrying out this improved method.
  • a motor is used for driving the drum, the current consumption and / or speed of which changes as a function of the load.
  • the chain ends striking the conveyor gutter wall or dragging along it represent a load on the motor. From this load, which can be seen, for example, from the current consumption, the distance between the drum and the conveyor gutter wall can be concluded.
  • the refractory material on the surface of the channel wall is worn out and tired, it can still be knocked off relatively easily by the chains.
  • the refractory material is still perfect afterwards, it offers greater resistance to the chains. It is advantageous to have the chains work in almost extended length on the channel wall, so that the material to be removed is practically detached by striking the chain ends.
  • a short-circuit rotor motor is therefore preferred for driving the drum, the current consumption of which is measured continuously by an ammeter, the change in current consumption preferably being corrected by a displacement of the rotating drum transversely to the conveyor trough in order to achieve an optimal one Machining of the conveyor gutter wall to maintain the desired distance value and thus also a current consumption corresponding to this.
  • a rotational speed or another size dependent on the load could also be specified and monitored.
  • the value which essentially corresponds to the distance of the drum from the wall of the conveyor channel, can be fed as a measuring signal to an electrical control circuit, in which control pulses for an automatic transverse displacement of the drum in accordance with the processing and in particular in adaptation to the sometimes irregular course of the Channel wall are generated
  • An extraction device for extracting gases, smoke and dust during operation of the channel is usually provided on conveyor channels, in particular on blast furnaces.
  • conveyor channels in particular on blast furnaces.
  • the direction of rotation of the drive of the drum is reversible.
  • the alternating direction of rotation also avoids one-sided closure of the ends of the chains and increases their service life.
  • the drum 1 is driven by a motor 6, in particular a short-circuit rotor motor, the direction of rotation of which is reversible.
  • the device has a mobile frame 5.
  • the chassis 5 is moved by two wheels 29, which are driven by motors 29 and run on a guide rail 20.
  • Lateral guide rollers 22 are provided for lateral guidance along the rail 20.
  • a support wheel 23 is located on the other side of the trough 3.
  • a column 30 is arranged on the frame 5 and can be moved transversely to the conveyor trough 3 by means of a chain hoist, preferably a round link chain 33, via a motor 32.
  • the chain 33 is kept in a tensioned state so that the displacement of the column 30 takes place without play and a fine adjustment is also possible.
  • a round link chain has proven itself very well as a robust, reliable means of movement for the present case, in which dust and chopped off chunks can also get to the means of movement and in which there is an influence of heat from the still hot channel .
  • the drum 1 and the drive motor 6 assigned to it are arranged on a vertically movable slide 31 which is guided on the column 30.
  • a round link chain 35 which is only partially shown in the figure, is also preferred for the height adjustment. The height is adjusted by means of the motor 34.
  • the device can be provided with an operating station 36.
  • the electrical connection of the device takes place via a cable drum 37, which can be provided with a device for tensioning the cable (not shown).
  • the electrical lines leading to the motors and the control station are not shown.
  • FIG. 1 The mode of operation of the device can be seen from FIG.
  • suction devices 40 for gases and / or smoke which can be used to vacuum dust during the cleaning of the trough.
  • the drum 1 rotates with the chains 2 in the direction of arrow 13, for example at a speed of 750 rpm.
  • the optimum speed in each case depends on the length of the chain ends and the chain weight and, if appropriate, also on the quality of the wall.
  • a change in the current consumption of the motor 6 indicates that the contact between the wall and the ends of the chains no longer corresponds to the processing conditions considered to be optimal, so that an adjustment by lateral displacement of the drum in accordance with arrow 10 is necessary.
  • This readjustment may be necessary due to the different state of the wall, but also due to a curve of the wall which is arched at individual points. For example, in the part of the conveyor trough into which the pig iron flows there are stronger detachments of the refractory material, so that after a while the trough widening to which the cleaning device has to be adapted takes place. This adaptation can take place automatically depending on the current consumption of the motor.
  • Fig. 2 the cleaning of the right wall of the conveyor trough 3 is indicated.
  • the direction of rotation of the drum 1 is selected such that material chipped off from the trough is thrown in the direction of the suction 40.
  • the device is returned to its starting position and the drum 1 is shifted to the left side. You will be on this side with operated in the opposite direction of rotation, so that in turn the chipped material is thrown in the direction of the suction device 40. It can be advantageous to advance the feed on both sides of the channel in the direction of arrow 12, ie in the direction of the suction devices 40.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

A device for cleaning conveying channels (3) with a refractory coating for molten metals and slags comprises chains (2) arranged on a rotary drum (1). The drum (1) is driven by a motor (6) whose current consumption and/or speed vary in function of the load. This variation from a predetermined reference value is used to move the rotating drum (1) across the conveying channel (3) and to ensure optimal cleaning of the channel walls. This can be achieved only with a specific distance between wall and drum (1) and a load on the motor (6) which corresponds approximately to said distance. The drum (1) can be reversibly driven, so that the material removed during the treatment of both sides of the conveying channel (3) is thrown off in the same direction.

Description

Die Erfindung bezieht sich auf eine Verbesserung eines Verfahrens und einer Vorrichtung zum Reinigen von feuerfest ausgekleideten Fωrderrinnen f}r schmelzfl}ssige Metalle und Schlacken, insbesondere an Hochωfen, wobei die Reinigung mittels rotierender Ketten erfolgt.The invention relates to an improvement in a method and a device for cleaning refractory-lined conveyor troughs for molten metals and slags, in particular on furnaces, the cleaning being carried out by means of rotating chains.

Aus DE-PS 32 25 015 ist eine Vorrichtung zum Reinigen von feuerfest ausgekleideten Fωrderrinnen mittels an einer rotierbaren Trommel umlaufender Ketten bekannt. Hierbei sollte ein stufenlos regelbarer Motor f}r den Antrieb der Trommel verwendet werden. Durch die [nderung der Drehzahl kann zwar die Intensit{t der Bearbeitung der Fωrderrinnenwand beeinflußt werden, es hat sich aber als schwierig erwiesen, im voraus zu erkennen, welches Maß der Bearbeitung an einzelnen Stellen notwendig ist. Durch [nderung der Drehzahl kωnnen jedenfalls unterschiedliche Ablagerungen, unterschiedlich zu beseitigendes verbrauchtes Feuerfestmaterial sowie Aussp}lungen der Rinnenwand nicht in optimaler Weise bearbeitet werden. Da bei dem Reinigungsvorgang in einem erheblichen Umfange Staub aufgewirbelt wird, waren dar}berhinaus Maßnahmen notwendig, trotzdem eine ausreichende Funktion zu sichern.From DE-PS 32 25 015 a device for cleaning fireproof-lined conveyor channels by means of chains rotating on a rotatable drum is known. An infinitely variable motor should be used to drive the drum. The intensity of the machining of the conveyor channel wall can be influenced by the change in the speed, but it has proven difficult to recognize in advance which measure of machining is necessary at individual points. In any case, changing the speed means that different deposits, different refractory materials to be disposed of differently, and rinsing of the channel wall cannot be processed in an optimal manner. Since dust is whirled up to a considerable extent during the cleaning process, additional measures were necessary to ensure adequate functioning.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Reinigen von feuerfest ausgekleideten Fωrderrinnen f}r schmelzfl}ssige Metalle und Schlacken insbesondere f}r die Vorrichtung gem{ß DE-PS 32 25 015 zu schaffen, mit dem der Reinigungsvorgang und das Reinigungsergebnis an der Rinnenauskleidung verbessert wird und dar}berhinaus auch die Vorrichtung zur Durchf}hrung dieses verbesserten Verfahrens auszubilden.The invention has for its object to provide a method for cleaning fireproof lined gutters for molten metals and slags, in particular for the device according to DE-PS 32 25 015, with which the cleaning process and the cleaning result the gutter lining is improved and, moreover, also to design the device for carrying out this improved method.

Die Lωsung dieser Aufgabe ist in dem Hauptanspruch angegeben. Die Unteranspr}che betreffen bevorzugte Weiterbildungen des Verfahrens und bevorzugte Ausbildungen der bei dem Verfahren zu verwendenden Vorrichtungen.The solution to this problem is given in the main claim. The subclaims relate to preferred developments of the method and preferred developments of the devices to be used in the method.

Nach der Erfindung wird f}r den Antrieb der Tromel ein Motor verwendet, dessen Stromaufnahme und/oder Drehzahl sich in Abh{ngigkeit von der Belastung {ndert. Die auf die Fωrderrinnenwand schlagenden oder an ihr entlangschleifenden Kettenenden stellen eine Belastung f}r den Motor dar. Aus dieser Belastung, die beispielsweise anhand der Stromaufnahme erkennbar ist, kann auf den Abstand zwischen Trommel und Fωrderrinnenwand geschlossen werden. Soweit das Feuerfestmaterial an der Oberfl{che der Rinnenwand verbraucht und m}rbe ist, l{ßt es sich durch die Ketten noch verh{ltmism{ßig leicht abschlagen. Soweit danach das Feuerfestmaterial noch einwandfrei ist, setzt es den Ketten einen grωßeren Widerstand entgegen. Vorteilhaft ist es, die Ketten in fast ausgestreckter L{nge an der Rinnenwand arbeiten zu lassen, so daß das zu entfernende Material praktisch durch Schl{ge der Kettenenden abgelωst wird. F}r den Antrieb der Trommel wird daher ein Kurzschlußl{ufermotor bevorzugt, dessen Stromaufnahme laufend durch ein Amperemeter gemessen wird, wobei vorzugsweise die [nderung der Stromaufnahme durch eine Verschiebung der rotierenden Trommel quer zur Fωrderrinne korrigiert wird, um einen f}r eine optimale Bearbeitung der Fωrderrinnenwand erw}nschten Abstandswert und damit auch eine diesem entsprechende Stromaufnahme einzuhalten. Anstelle der Stromaufnahme kωnnte auch eine Drehzahl oder eine andere von der Belastung abh{ngige Grωße vorgegeben und }berwacht werden.According to the invention, a motor is used for driving the drum, the current consumption and / or speed of which changes as a function of the load. The chain ends striking the conveyor gutter wall or dragging along it represent a load on the motor. From this load, which can be seen, for example, from the current consumption, the distance between the drum and the conveyor gutter wall can be concluded. As far as the refractory material on the surface of the channel wall is worn out and tired, it can still be knocked off relatively easily by the chains. As far as the refractory material is still perfect afterwards, it offers greater resistance to the chains. It is advantageous to have the chains work in almost extended length on the channel wall, so that the material to be removed is practically detached by striking the chain ends. A short-circuit rotor motor is therefore preferred for driving the drum, the current consumption of which is measured continuously by an ammeter, the change in current consumption preferably being corrected by a displacement of the rotating drum transversely to the conveyor trough in order to achieve an optimal one Machining of the conveyor gutter wall to maintain the desired distance value and thus also a current consumption corresponding to this. Instead of the current consumption, a rotational speed or another size dependent on the load could also be specified and monitored.

Der im wesentlichen dem Abstand der Trommel von der Fωrderrinnenwand entsprechende Wert kann als Meßsignal einem elektrischen Regelkreis zugef}hrt werden, in dem Steuerimpulse zu einer automatischen Querverschiebung der Trommel entsprechend der Bearbeitung und insbesondere in Anpassung an den z.T. unregelm{ßigen Verlauf der Rinnenwand erzeugt werdenThe value, which essentially corresponds to the distance of the drum from the wall of the conveyor channel, can be fed as a measuring signal to an electrical control circuit, in which control pulses for an automatic transverse displacement of the drum in accordance with the processing and in particular in adaptation to the sometimes irregular course of the Channel wall are generated

An Fωrderrinnen, insbesondere an Hochωfen, ist }blicherweise eine Absaugeinrichtung zum Absaugen von Gasen, Rauch und Staub w{hrend des Rinnenbetriebes vorgesehen. F}r den Reinigungsvorgang hat es sich als vorteilhaft herausgestellt, die Trommel beim Putzen der beiden Rinnenl{ngsseiten jeweils in Richtung auf die Absaugung zu drehen und den anfallenden Staub abzusaugen. Dazu wird vorgesehen, daß die Drehrichtung des Antriebs der Trommel umkehrbar ist. Durch die wechselnde Drehrichtung wird außerdem ein einseitiger Verschluß der Enden der Ketten vermieden und deren Lebensdauer erhωht.An extraction device for extracting gases, smoke and dust during operation of the channel is usually provided on conveyor channels, in particular on blast furnaces. For the cleaning process, it has been found to be advantageous to turn the drum in the direction of the suction device when cleaning the two sides of the channel and to suction off the dust that is produced. For this purpose, it is provided that the direction of rotation of the drive of the drum is reversible. The alternating direction of rotation also avoids one-sided closure of the ends of the chains and increases their service life.

Weitere Einzelheiten der Vorrichtung und des Verfahrens werden anhand des auf den Zeichnungen schematisch dargestellten Ausf}hrungsbeispiels beschrieben.Further details of the device and the method are described with reference to the exemplary embodiment shown schematically in the drawings.

Es zeigen

Fig. 1
einen Schnitt durch die Fωrderrinne mit einer Ansicht auf die Vorrichtung und
Fig. 2
eine Draufsicht auf die Fωrderrinne mit angedeuteter Vorrichtung.
Show it
Fig. 1
a section through the conveyor trough with a view of the device and
Fig. 2
a plan view of the conveyor trough with indicated device.

An der Trommel 1 befindet sich eine Vielzahl von Kettenenden 2. Die Enden der Ketten schlagen gegen die Wand der Fωrderrinne 3 und entfernen von ihr Schlacke und verbrauchtes Material der Auskleidung 4. Nach dem Putzen wird die Oberfl{che der Rinne durch neues Material ausgebessert. Die Trommel 1 wird durch einen Motor 6, insbesondere einen Kurzschlußl{ufermotor, angetrieben, dessen Drehrichtung umkehrbar ist.There are a large number of chain ends 2 on the drum 1. The ends of the chains hit the wall of the conveyor trough 3 and remove slag and used material from the lining 4. After cleaning, the surface of the trough is repaired by new material. The drum 1 is driven by a motor 6, in particular a short-circuit rotor motor, the direction of rotation of which is reversible.

Die Vorrichtung weist ein fahrbares Gestell 5 auf. Das Fahrgestell 5 wird durch zwei }ber Motore 29 angetriebene R{der 21, die auf einer F}hrungsschiene 20 laufen, bewegt. Zur seitlichen F}hrung entlang der Schiene 20 sind Seitenf}hrungsrollen 22 vorgesehen. Auf der anderen Seite der Rinne 3 befindet sich ein St}tzrad 23. Auf dem Gestell 5 ist eine S{ule 30 angeordnet und kann mittels eines Kettenzuges, vorzugsweise einer Rundgliederkette 33, }ber einen Motor 32 quer zur Fωrderrinne 3 verschoben werden. Die Kette 33 wird in einem gespannten Zustand gehalten, so daß die Verschiebung der S{ule 30 spielfrei erfolgt und auch eine Feineinstellung mωglich ist. Eine Rundgliederkette hat sich als ein robustes, zuverl{ssiges Bewegungsmittel f}r den vorliegenden Fall, bei dem Staub und abgeschlagene Brocken auch an die Bewegungsmittel geraten kωnnen und bei dem ein W{rmeeinfluß der noch heißen Rinne vorhanden ist, sehr gut bew{hrt.The device has a mobile frame 5. The chassis 5 is moved by two wheels 29, which are driven by motors 29 and run on a guide rail 20. Lateral guide rollers 22 are provided for lateral guidance along the rail 20. A support wheel 23 is located on the other side of the trough 3. A column 30 is arranged on the frame 5 and can be moved transversely to the conveyor trough 3 by means of a chain hoist, preferably a round link chain 33, via a motor 32. The chain 33 is kept in a tensioned state so that the displacement of the column 30 takes place without play and a fine adjustment is also possible. A round link chain has proven itself very well as a robust, reliable means of movement for the present case, in which dust and chopped off chunks can also get to the means of movement and in which there is an influence of heat from the still hot channel .

Die Trommel 1 und der ihr zugeordnete Antriebsmotor 6 sind an einem vertikal beweglichen Schlitten 31 angeordnet, der an der S{ule 30 gef}hrt wird. Auch f}r die Hωhenverstellung wird eine Rundgliederkette 35, die in der Abbildung nur teilweise dargestellt ist, bevorzugt. Die Hωhenverstellung erfolgt mittels des Motors 34.The drum 1 and the drive motor 6 assigned to it are arranged on a vertically movable slide 31 which is guided on the column 30. A round link chain 35, which is only partially shown in the figure, is also preferred for the height adjustment. The height is adjusted by means of the motor 34.

Die Vorrichtung kann mit einem Bedienungsstand 36 versehen sein. ]ber eine Kabeltrommel 37, die mit einer nicht dargestellten Einrichtung zum Spannen des Kabels versehen sein kann, erfolgt der elektrische Anschluß der Vorrichtung. Die zu den Motoren und dem Bedienungsstand f}hrenden elektrischen Leitung sind nicht gezeigt.The device can be provided with an operating station 36. The electrical connection of the device takes place via a cable drum 37, which can be provided with a device for tensioning the cable (not shown). The electrical lines leading to the motors and the control station are not shown.

Aus Fig. 2 ist die Arbeitsweise der Vorrichtung ersichtlich. An einem Ende der Fωrderrinne 3, beispielsweise an dem Ende, das dem nicht gezeigten Hochofen zugekehrt ist, befinden sich Absaugeinrichtungen 40 f}r Gase und/oder Rauch, die w{hrend der Reinigung der Rinne zum Absaugen von Staub eingesetzt werden kωnnen. Wenn die Vorrichtung mittels der auf der Schiene 20 laufenden R{der 21 in Richtung des Pfeiles 12 vorgeschoben wird, dreht sich die Trommel 1 mit den Ketten 2 in Richtung des Pfeiles 13, beispielsweise mit einer Drehzahl von 750 U/min. Die jeweils optimale Drehzahl ist abh{ngig von der L{nge der Kettenenden und dem Kettengewicht sowie gegebenenfalls auch von der Qualit{t der Wand. Eine Ver{nderung der Stromaufnahme des Motors 6 zeigt an, daß der Kontakt zwischen Wand und Enden der Ketten nicht mehr den als optimal angesehenen Bearbeitungsverh{ltnissen entspricht, so daß ein Nachstellen durch seitliche Verschiebung der Trommel entsprechend dem Pfeil 10 notwendig ist. Dieses Nachstellen kann durch unterschiedlichen Zustand der Wand, aber auch durch einen sich an einzelnen Stellen bogenfωrmig ausbildenden Verlauf der Wand notwendig werden. Beispielsweise treten in dem Teil der Fωrderrinne, in den das Roheisen fließt, st{rkere Absp}lungen des Feuerfestmaterials auf, so daß hier nach einiger Zeit eine Verbreiterung der Rinne stattfindet, der die Reinigungseinrichtung anzupassen ist. Diese Anpassung kann automatisch in Abh{ngigkeit von der Stromaufnahme des Motors erfolgen. Da die Reinigungsstelle selbst von der Bedienungsperson wegen der Staubentwicklung und der Abdeckung durch das Gestell 5 nicht eingesehen werden kann, w}rde ein Nachf}hren durch seitliche Verschiebung von Hand ausschließlich nach dem visuellen Ergebnis der geputzten Wand f}r Abweichungen vom Wandverlauf nicht zur rechten Zeit kommen. Ein Nachf}hren entsprechend dem Sollwert der Stromaufnahme durch die Bedienungsperson gestattet zwar eine verh{ltnism{ßig schnelle Anpassung, schließt aber Bedienungsfehler nicht aus. Eine automatische Anpassung ist dagegen, insbesondere wegen der schwierigen Arbeitsbedingungen in Hochofenn{he, von Vorteil.The mode of operation of the device can be seen from FIG. At one end of the conveyor trough 3, for example at the end facing the blast furnace (not shown), there are suction devices 40 for gases and / or smoke which can be used to vacuum dust during the cleaning of the trough. If the device by means of the wheels running on the rail 20 21 is advanced in the direction of arrow 12, the drum 1 rotates with the chains 2 in the direction of arrow 13, for example at a speed of 750 rpm. The optimum speed in each case depends on the length of the chain ends and the chain weight and, if appropriate, also on the quality of the wall. A change in the current consumption of the motor 6 indicates that the contact between the wall and the ends of the chains no longer corresponds to the processing conditions considered to be optimal, so that an adjustment by lateral displacement of the drum in accordance with arrow 10 is necessary. This readjustment may be necessary due to the different state of the wall, but also due to a curve of the wall which is arched at individual points. For example, in the part of the conveyor trough into which the pig iron flows there are stronger detachments of the refractory material, so that after a while the trough widening to which the cleaning device has to be adapted takes place. This adaptation can take place automatically depending on the current consumption of the motor. Since the cleaning point itself cannot be seen by the operator because of the dust development and the covering by the frame 5, manual lateral shifting would not result in deviations from the course of the wall solely according to the visual result of the cleaned wall come at the right time. Adjustment according to the setpoint of the current consumption by the operator allows a relatively quick adjustment, but does not exclude operating errors. Automatic adjustment, on the other hand, is particularly advantageous because of the difficult working conditions in the blast furnace.

In Fig. 2 ist die Reinigung der rechten Wand der Fωrderrinne 3 angedeutet. Dabei ist die Drehrichtung der Trommel 1 so gew{hlt, daß von der Rinne abgeschlagenes Material in Richtung auf die Absaugung 40 geworfen wird. Zur Reinigung der anderen Wand wird die Vorrichtung in ihre Ausgangslage zur}ckgefahren und die Trommel 1 an die linke Seite verschoben. Sie wird an dieser Seite mit entgegengesetzter Drehrichtung betrieben, so daß wiederum das abgeschlagene Material in Richtung auf die Absauger 40 geschleudert wird. Es kann von Vorteil sein, den Vorschub auf beiden Seiten der Rinne in der Richtung des Pfeiles 12 vorzunehmen, d.h. in Richtung auf die Absauger 40.In Fig. 2, the cleaning of the right wall of the conveyor trough 3 is indicated. The direction of rotation of the drum 1 is selected such that material chipped off from the trough is thrown in the direction of the suction 40. To clean the other wall, the device is returned to its starting position and the drum 1 is shifted to the left side. You will be on this side with operated in the opposite direction of rotation, so that in turn the chipped material is thrown in the direction of the suction device 40. It can be advantageous to advance the feed on both sides of the channel in the direction of arrow 12, ie in the direction of the suction devices 40.

Claims (6)

  1. Method of cleaning refractory lined conveyor channels for molten metals and slag by means of chains, which are disposed on a rotatable drum, the position of said drum on a rail-guided chassis being laterally and vertically adjustable, characterised in that a motor is used for driving the drum, the current consumption and/or speed of said motor varying in dependence on the loading, in that the variation of at least one of these values is determined, and in that, in accordance with the determined value, the clearance value desired for an optimum processing of the wall of the conveyor channel is set by displacement of the rotatable drum transversely relative to the conveyor channel.
  2. Method according to claim 1, characterised in that the determined value is converted, as a measurement signal in a control circuit, into control pulses for the automatic transverse displacement of the drum in conformity with the configuration of the channel wall.
  3. Method according to claim 1 or 2, characterised in that the drum is rotated with the chains, which process the channel wall, in a direction towards a dust remover provided substantially at the end of the conveyor channel.
  4. Device for accomplishing the method according to one of claims 1 to 3, comprising a chassis (5), which is displaceable in the longitudinal direction of the conveyor channel and is provided with a transversely displaceable column (30), on which the rotatable drum (1), with the chains (2), is disposed in a vertically adjustable manner, characterised in that, to drive the drum (1), a motor (6), preferably a squirrel cage motor, is disposed on a vertically adjustable slide member (31) on the column (30), said motor reacting to the loading as a consequence of the resistance of the chain ends (2) on the wall of the conveyor channel (3).
  5. Device according to claim 4, characterised in that the direction of rotation of the drum (1) is reversible.
  6. Device according to claim 4 or 5, comprising a column (30), which is displaceable on a chassis (5) transversely relative to the conveyor channel, and a slide member (31), which carries the drum (1) and is vertically displaceable on the column (30), characterised in that the displacement of the column (30) and of the slide member (31) is effected by means of a drive using round-link chains (33, 35).
EP89908819A 1988-08-12 1989-08-01 Process and device for cleaning conveying channels Expired - Lifetime EP0382827B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89908819T ATE84363T1 (en) 1988-08-12 1989-08-01 METHOD AND DEVICE FOR CLEANING A CONVEYOR CHUTE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3827400A DE3827400A1 (en) 1988-08-12 1988-08-12 METHOD AND DEVICE FOR CLEANING A CONVEYOR
DE3827400 1988-08-12

Publications (2)

Publication Number Publication Date
EP0382827A1 EP0382827A1 (en) 1990-08-22
EP0382827B1 true EP0382827B1 (en) 1993-01-07

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EP89908819A Expired - Lifetime EP0382827B1 (en) 1988-08-12 1989-08-01 Process and device for cleaning conveying channels

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US (1) US5014965A (en)
EP (1) EP0382827B1 (en)
JP (1) JPH03500425A (en)
DE (2) DE3827400A1 (en)
HU (1) HU208373B (en)
WO (1) WO1990001665A1 (en)
ZA (1) ZA895816B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9014109U1 (en) * 1990-10-11 1990-12-13 MBM Maschinenbau Mühldorf GmbH, 8260 Mühldorf Device for restoring the flatness of the loading surface of hardening trolleys
KR20020000930A (en) * 2000-06-22 2002-01-09 김영진 Fill method of liquid and its liquid receptacle
GB2493969B (en) * 2011-08-26 2013-08-07 Siemens Plc Slag dispersal device and method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR689771A (en) * 1930-01-15 1930-09-11 Improvements to survey facilities
FR2037007B1 (en) * 1969-04-30 1973-03-16 Inst Francais Du Petrole
DE3225015C1 (en) * 1982-07-03 1983-11-17 Stahlwerke Peine-Salzgitter Ag, 3150 Peine cleaning appts. for refractory lined runners - comprising chains mounted on rotating drum
GB8615431D0 (en) * 1986-06-24 1986-07-30 Somafer Sa Treatment of refractory lined transfer channels
DE3741073A1 (en) * 1987-12-04 1989-06-15 Intocast Gmbh METHOD AND DEVICE FOR RESTORING THE INPUT OF METALLURGICAL PANS

Also Published As

Publication number Publication date
HU894634D0 (en) 1991-11-28
WO1990001665A1 (en) 1990-02-22
HU208373B (en) 1993-09-28
DE58903235D1 (en) 1993-02-18
JPH03500425A (en) 1991-01-31
EP0382827A1 (en) 1990-08-22
DE3827400A1 (en) 1990-02-15
HUT57891A (en) 1991-12-30
ZA895816B (en) 1990-04-25
US5014965A (en) 1991-05-14

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