EP1144695B1 - Bell and hopper for shaft furnaces - Google Patents

Bell and hopper for shaft furnaces Download PDF

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Publication number
EP1144695B1
EP1144695B1 EP99959405A EP99959405A EP1144695B1 EP 1144695 B1 EP1144695 B1 EP 1144695B1 EP 99959405 A EP99959405 A EP 99959405A EP 99959405 A EP99959405 A EP 99959405A EP 1144695 B1 EP1144695 B1 EP 1144695B1
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EP
European Patent Office
Prior art keywords
chute
charging equipment
movement
equipment according
spindles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99959405A
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German (de)
French (fr)
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EP1144695A1 (en
Inventor
Peter Heinrich
Werner Otremba
Hartmut Hille
Marko Ricke
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Paul Wurth SA
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SMS Demag AG
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Priority claimed from DE19911637A external-priority patent/DE19911637A1/en
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1144695A1 publication Critical patent/EP1144695A1/en
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Publication of EP1144695B1 publication Critical patent/EP1144695B1/en
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/18—Bell-and-hopper arrangements
    • C21B7/20—Bell-and-hopper arrangements with appliances for distributing the burden

Definitions

  • the invention relates to a top closure for shaft furnaces, in particular Blast furnaces, with a feed hopper with a feed pipe, a rotating one Chute carrier with rotary drive and a swiveling chute inside the furnace with external drive means.
  • a generic gout closure is in the German patent application 197 09 329.9. This is a bellless one Gout closure, the drives for the rotation and tilting movement of the Chute carrier and chute work independently and not in Connected to the furnace room.
  • the one mounted in a ball slewing ring Chute carrier has a rotary drive that consists of an electric motor, Sprocket and sprocket put together.
  • As a drive for the tilting movement is a hydraulic pressure cylinder that rotates with the chute support disclosed.
  • OS 2404647 describes a device for driving or moving a Device for loading a blast furnace with raw materials known.
  • a distribution chute or chute with the lower ends of an inner cylinder and outer cylinder connected, which at the same time rotatable, relative to each other axially displaceable and are mounted independently of each other.
  • the Distribution chute is simultaneously with the inner cylinder and outer cylinder rotatable and with the vertical movement of the inner cylinder relative to the outer cylinder tiltable. The vertical movement is accomplished with several pressure cylinders.
  • the distribution chute is at the lower end of the inner cylinder with the help of pivot pins pivoted and with joint pieces with connected to the lower end of the outer cylinder.
  • the distribution chute is pivoted by the outer cylinder vertically relative to the inner cylinder is moved.
  • the drive described is a superimposed one Rotation and tilting movement of the chute.
  • GB-A-2027860 describes a loading device for shaft furnaces with a Rotating sleeve and a tilting chute known. For this tilting movement one operating rod articulated on the rear part of the chute, whereby the Chute is pivoted around its horizontal suspension bearing. This Actuating rod rotates together with the rotating sleeve.
  • the invention is based on the object a less prone to failure, low wear and cost-effective To create gout closure of the generic type.
  • the drive means for the pivoting movement the chute comprise at least one motor, each via a pinion Drives ring gear, the ring gear with the spindle gears from at least two over the circumference of the top seal outside of the rotating one Chute carrier distributed spindles engages to generate a lifting and lowering movement of the spindles, the spindles being fixedly arranged on the piercing gout closure housing; funds are also earmarked for the transfer of these vertical movement of the spindles to the penetrating the inner housing wall Tilting shafts, in which the chute can be hooked, to generate a Swiveling or tilting movement of the chute.
  • the movement transmission means between the spindles and the chute it is a lifting frame and a lifting ring
  • the Lift frame according to the vertical movement of the spindle nut and the Lifting ring taken along according to the vertical movement of the lifting frame becomes.
  • Joint pieces are attached to the cam ring, which are eccentric Attack on the tilting shafts the lifting and lowering movement of the lifting ring in convert a corresponding rotary movement of the tilting shafts.
  • the tipping shafts at their first end means for attaching the chute and on at its second end an area extending at right angles to the shaft axis for connection to the joint pieces.
  • three spindles are provided, which ensure a particularly tilt-free drive.
  • the drive means are proposed for the rotating and swiveling movement of the chute carrier or to seal the chute with a lid that is placed on the housing becomes.
  • the resulting interior is preferably filled with nitrogen.
  • the drive elements remain dust-free, which is advantageous whose lifespan affects.
  • the drive means are less accessible, the seals used are no longer the full differential pressure exposed between the gas pressure at the furnace head and the atmospheric pressure, only the low preselected differential pressure.
  • the lid solution it is possible to use nitrogen inside the case build up a gas pressure that is slightly higher than the pressure inside the furnace. The pressure can be adjusted automatically.
  • the seals as they are known from German patent application 197 09 329.9, less elaborate. Lead any damage to the seals to an increase in the otherwise very low nitrogen consumption and would noticed immediately.
  • Figure 1 shows a top seal with rotatable and tiltable chute 1 for loading of a blast furnace.
  • the Möller becomes a sluice bunker in an infeed hopper underneath (shown schematically) is discharged. From the feed hopper, the Möller arrives via a feed pipe 2 on a tiltable and rotatable arranged within the chute carrier Chute 1 and from there to the upper part of the blast furnace.
  • the chute carrier 3 with chute is made up of a rotary drive consisting of a motor 4, a pinion 5 and a ring gear 6 set in rotation.
  • a further motor 7 is provided for the tilting movement drives a ring gear 9.
  • the drive elements are by means of the bearing 10 stored.
  • the ring gear 9 drives the respective spindle gear 11 out of three the circumference of the top housing 12 distributed spindles 13. by virtue of the rotational movement raises and lowers the spindle nut while taking it the lifting frame 14 arranged adjacent to this. Adjacent the lifting ring 15 is arranged to the lifting frame.
  • the vertical movement of the Lifting frame 14 is transferred to the lifting ring 15, while a laterally below of the cam ring arranged bearing 16, the rotational movement of the cam ring receives.
  • the second end 20 of the hinge pieces 17 is releasably attached to a connecting part 21 of the tilting shafts 22.
  • the attack of the Joint pieces 17 on the connecting part 21 of the tilting shafts 22 are eccentric, so that the vertical movement of the cam ring 15 in a corresponding Rotational movement of the tilting shafts 22 is converted.
  • the tilting waves 22 are in Bearings 23 stored. They penetrate the inner wall 24 of the gas-tight Chute carrier 3.
  • the inward end 28 of the tilting shafts 22 is like this designed that the rotary chute 1 can be attached.
  • With 26 and 27, upper and lower annular seals are designated.
  • the housing 12 and the drive means can be closed with a cover 29 and gas-tight.
  • the internal pressure can be checked by adding nitrogen.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)
  • Coating Apparatus (AREA)
  • Screw Conveyors (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)

Abstract

In order to configure a bell and hopper for shaft furnaces, in particular, blast furnaces, comprising a charging bin with a feed tube, a rotating chute carrier with rotary drive, a swiveling chute in the interior of the furnace with drive means arranged external to a housing, in a less failure-prone and a wear resistant way, the drive means for the swivel movement of the chute are to comprise: at least one motor (7) which drives by a respective pinion (8) a crown gear (9), wherein the crown gear (9) engages the spindle gear wheels (11) of at least two spindles (13) distributed about the periphery of the bell and hopper external to the rotating chute carrier (3) for generating a lifting and lowering movement of the spindles, as well as means (14, 15, 17, 21) for transmitting this vertical movement of the spindles onto the tilting shafts (22), which penetrate the inner wall (24) of the chute carrier (3) and from which the chute can be suspended, for generating a swivel and tilting movement of the chute.

Description

Die Erfindung betrifft einen Gichtverschluß für Schachtöfen, insbesondere Hochöfen, mit einem Guteinlauftrichter mit Einschleusrohr, einem rotierenden Schurrenträger mit Drehantrieb sowie einer schwenkbaren Schurre im Ofeninneren mit außerseitigen Antriebsmitteln.The invention relates to a top closure for shaft furnaces, in particular Blast furnaces, with a feed hopper with a feed pipe, a rotating one Chute carrier with rotary drive and a swiveling chute inside the furnace with external drive means.

Ein gattungsgemäßer Gichtverschluß ist in der deutschen Patentanmeldung 197 09 329.9 beschrieben. Bei diesem handelt es sich um einen glockenlosen Gichtverschluß, wobei die Antriebe für die Dreh- sowie Kippbewegung des Schurrenträgers und der Schurre unabhängig voneinander arbeiten und nicht in Verbindung mit dem Ofenraum stehen. Der in einer Kugeldrehverbindung gelagerte Schurrenträger besitzt einen Drehantrieb, der sich aus einem Elektromotor, Ritzel und Zahnkranz zusammensetzt. Als Antriebsmittel für die Kippbewegung ist ein mit dem Schurrenträger mitdrehender hydraulischer Druckzylinder offenbart.A generic gout closure is in the German patent application 197 09 329.9. This is a bellless one Gout closure, the drives for the rotation and tilting movement of the Chute carrier and chute work independently and not in Connected to the furnace room. The one mounted in a ball slewing ring Chute carrier has a rotary drive that consists of an electric motor, Sprocket and sprocket put together. As a drive for the tilting movement is a hydraulic pressure cylinder that rotates with the chute support disclosed.

Dieses Mitführen des Kippantriebes auf dem rotierenden Schurrenträger des Gichtverschlusses zeigt in der praktischen Ausführung den Nachteil, daß eine komplizierte, teure und störanfällige Energieübertragung auf das rotierende Teil notwendig ist, beispielsweise mittels Schleifringen.This entrainment of the tilt drive on the rotating chute carrier Gout closure shows the disadvantage in practice that a complicated, expensive and fault-prone energy transmission to the rotating part is necessary, for example using slip rings.

Aus der OS 2404647 ist eine Vorrichtung zum Antrieb bzw. zur Bewegung eines Geräts zum Beschicken eines Hochofens mit Rohstoffen bekannt. Hierbei ist eine Verteilungsschüttrinne oder Schurre mit den unteren Enden eines Innenzylinders und Außenzylinders verbunden, die zugleich drehbar, relativ zueinander axial verschiebbar und unabhängig voneinander gelagert sind. Die Verteilungsschüttrinne ist zugleich mit dem Innenzylinder und Außenzylinder drehbar und mit der Vertikalbewegung des Innenzylinders relativ zum Außenzylinder kippbar. Die Vertikalbewegung wird mit mehreren Druckzylindern bewerkstelligt. Die Verteilungsschüttrinne ist am unteren Ende des Innenzylinders mit Hilfe von Drehbolzen schwenkbar gelagert und mittels Gelenkstücken mit dem unteren Ende des Außenzylinders verbunden. Die Verteilungsschüttrinne wird geschwenkt, indem der Außenzylinder gegenüber dem Innenzylinder vertikal bewegt wird. Bei der beschriebenen Antrieb handelt es sich um eine überlagerte Dreh- und Kippbewegung der Schurre.OS 2404647 describes a device for driving or moving a Device for loading a blast furnace with raw materials known. in this connection is a distribution chute or chute with the lower ends of an inner cylinder and outer cylinder connected, which at the same time rotatable, relative to each other axially displaceable and are mounted independently of each other. The Distribution chute is simultaneously with the inner cylinder and outer cylinder rotatable and with the vertical movement of the inner cylinder relative to the outer cylinder tiltable. The vertical movement is accomplished with several pressure cylinders. The distribution chute is at the lower end of the inner cylinder with the help of pivot pins pivoted and with joint pieces with connected to the lower end of the outer cylinder. The distribution chute is pivoted by the outer cylinder vertically relative to the inner cylinder is moved. The drive described is a superimposed one Rotation and tilting movement of the chute.

Aus der GB-A-2027860 ist eine Beschickungsvorrichtung für Schachtöfen mit einer Drehhülse und einer kippbaren Schurre bekannt. Für diese Kippbewegung wird eine am hinteren Teil der Schurre angelenkte Betätigungsstange verwendet, wodurch die Schurre um ihre horizontalen Aufhängungslager geschwenkt wird. Diese Betätigungsstange rotiert mitsamt der Drehhülse.GB-A-2027860 describes a loading device for shaft furnaces with a Rotating sleeve and a tilting chute known. For this tilting movement one operating rod articulated on the rear part of the chute, whereby the Chute is pivoted around its horizontal suspension bearing. This Actuating rod rotates together with the rotating sleeve.

Der liegt Erfindung die Aufgabe zugrunde, einen wenig störanfälligen, verschleißarmen sowie kostengünstigen Gichtverschluß gattungsgemäßer Art zu schaffen.The invention is based on the object a less prone to failure, low wear and cost-effective To create gout closure of the generic type.

Diese Aufgabe wird mittels eines Gichtverschlusses mit den Merkmalen der Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen sind in den Unteransprüchen offenbart.This task is accomplished by means of a gout closure with the characteristics of Claim 1 solved. Advantageous embodiments are in the subclaims disclosed.

Zur Lösung wird vorgeschlagen, daß die Antriebsmittel zur Schwenkbewegung der Schurre mindestens einen Motor umfassen, der über jeweils ein Ritzel einen Zahnkranz antreibt, wobei der Zahnkranz mit den Spindelzahnrädern von mindestens zwei über den Umfang des Gichtverschlusses außerhalb des rotierenden Schurrenträgers verteilten Spindeln in Eingriff kommt zur Erzeugung einer Hub- und Senkbewegung der Spindeln, wobei die Spindeln fest auf dem feststchenden Gichtverschlußgehäuse angeordnet sind; weiterhin sind Mittel vorgesehen zur Übertragung dieser vertikalen Bewegung der Spindeln an die die innere Gehäusewand durchdringende Kippwellen, in die die Schurre einhängbar ist, zur Erzeugung einer Schwenk- bzw. Kippbewegung der Schurre.As a solution, it is proposed that the drive means for the pivoting movement the chute comprise at least one motor, each via a pinion Drives ring gear, the ring gear with the spindle gears from at least two over the circumference of the top seal outside of the rotating one Chute carrier distributed spindles engages to generate a lifting and lowering movement of the spindles, the spindles being fixedly arranged on the piercing gout closure housing; funds are also earmarked for the transfer of these vertical movement of the spindles to the penetrating the inner housing wall Tilting shafts, in which the chute can be hooked, to generate a Swiveling or tilting movement of the chute.

Auf diese Weise ist es möglich, neben den Vorteilen einer getrennten Anordnung der beiden Antriebe von Dreh- und Kippbewegung der Schurre die Nachteile eines mitrotierenden Antriebs für die Kippbewegung der Schurre zu überwinden. Gegenüber der aus der deutschen Patentanmeldung 197 09 329.9 bekannten Lösung rotieren die eigentlichen Antriebsmittel zur Erzeugung der Kippbewegung der Schurre nicht mehr mit. Die Spindeln sind fest auf dem Gichtverschluß angeordnet. Allein Teile der weniger störanfälligen Bewegungsübertragungsmittel rotieren. In this way, besides the advantages of a separate arrangement, it is possible the disadvantages of the two drives of the turning and tilting movement of the chute to overcome a co-rotating drive for the tilting movement of the chute. Compared to that known from German patent application 197 09 329.9 Solution rotate the actual drive means for generating the No longer tilting the chute. The spindles are firmly on the Gout closure arranged. Parts of the less interference-prone movement transmission means alone rotate.

Gegenüber der Lösung nach der OS 2404647 wird nach der Erfindung ein präziser Gleichlauf der Hubeinrichtung erzielt, ein Verkanten oder Verklemmen ist nicht mehr möglich.Compared to the solution according to OS 2404647 is a more precise according to the invention Synchronization of the lifting device is achieved, tilting or jamming not possible anymore.

Bei den Bewegungsübertragungsmitteln zwischen den Spindeln und der Schurre handelt es sich um einen Hubrahmen sowie einen Hubring, wobei der Hubrahmen entsprechend der vertikalen Bewegung der Spindelmutter und der Hubring entsprechend der vertikalen Bewegung des Hubrahmens mitgenommen wird. An dem Hubring sind Gelenkstücke befestigt, die durch exzentrischen Angriff an den Kippwellen die Hub- und Senkbewegung des Hubrings in eine entsprechende Drehbewegung der Kippwellen umwandeln. Hierzu weisen die Kippwellen an ihrem ersten Ende Mittel zum Einhängen der Schurre und an ihrem zweiten Ende einen sich rechtwinklig zur Wellenachse erstreckenden Bereich zur Verbindung mit den Gelenkstücken auf.With the movement transmission means between the spindles and the chute it is a lifting frame and a lifting ring, the Lift frame according to the vertical movement of the spindle nut and the Lifting ring taken along according to the vertical movement of the lifting frame becomes. Joint pieces are attached to the cam ring, which are eccentric Attack on the tilting shafts the lifting and lowering movement of the lifting ring in convert a corresponding rotary movement of the tilting shafts. To do this the tipping shafts at their first end means for attaching the chute and on at its second end an area extending at right angles to the shaft axis for connection to the joint pieces.

Bei einer besonders bevorzugten Ausführungsform sind drei Spindeln vorgesehen, die einen besonders verkantungsfreien Antrieb gewährleisten. Durch die erfindungsgemäße Anordnung der Antriebsmittel sowie die Wahl der Antriebe wird ein vollständiger Gleichlauf der Hubspindeln und damit ein absolut gleichmäßiges, unverkantetes Heben und Senken des Hubrings und somit eine geringe Störanfälligkeit ermöglicht.In a particularly preferred embodiment, three spindles are provided, which ensure a particularly tilt-free drive. Through the arrangement of the drive means according to the invention and the choice of drives is a complete synchronization of the lifting spindles and thus an absolutely uniform, non-edged lifting and lowering of the cam ring and thus a small one Enables susceptibility to failure.

Zur Gewährleistung eines geringen Verschleißes wird vorgeschlagen, die Antriebsmittel für die Dreh- sowie Schwenkbewegung des Schurrenträgers bzw. der Schurre mit einem Deckel abzudichten, der auf das Gehäuse aufgesetzt wird. Der sich ergebene Innenraum wird vorzugsweise mit Stickstoff gefüllt.To ensure low wear, the drive means are proposed for the rotating and swiveling movement of the chute carrier or to seal the chute with a lid that is placed on the housing becomes. The resulting interior is preferably filled with nitrogen.

Auf diese Weise bleiben die Antriebselemente staubfrei, was sich vorteilhaft auf deren Lebensdauer auswirkt. Die Antriebsmittel sind zwar weniger gut zugänglich, die eingesetzten Abdichtungen sind aber nicht mehr dem vollen Differenzdruck zwischen dem Gasdruck am Ofenkopf und dem Atmosphärendruck ausgesetzt, sondem nur noch dem geringen vorgewählten Differenzdruck. Mittels der Deckellösung ist es möglich, im Inneren des Gehäuses mittels Stickstoff einen Gasdruck aufzubauen, der etwas größer ist als der Druck im Ofeninneren. Der Druck ist automatisch nachsteuerbar. Dann können die Abdichtungen, wie sie aus der deutschen Patentanmeldung 197 09 329.9 bekannt sind, weniger aufwendig ausgeführt werden. Etwaige Schäden an den Dichtungen führen zu einem Anstieg des sonst sehr geringen Stickstoffsverbrauchs und würden sofort bemerkt.In this way, the drive elements remain dust-free, which is advantageous whose lifespan affects. The drive means are less accessible, the seals used are no longer the full differential pressure exposed between the gas pressure at the furnace head and the atmospheric pressure, only the low preselected differential pressure. through the lid solution it is possible to use nitrogen inside the case build up a gas pressure that is slightly higher than the pressure inside the furnace. The pressure can be adjusted automatically. Then the seals, as they are known from German patent application 197 09 329.9, less elaborate. Lead any damage to the seals to an increase in the otherwise very low nitrogen consumption and would noticed immediately.

Weitere Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung. Hierbei zeigen:

  • Figur 1 eine Seitenansicht des Gichtverschlusses;
  • Figur 2 eine Vorderansicht des Gichtverschlusses.
    • Further details of the invention emerge from the following description. Here show:
  • Figure 1 is a side view of the top seal;
  • Figure 2 is a front view of the top seal.

    • Figur 1 zeigt einen Gichtverschluß mit dreh- und kippbarer Schurre 1 zur Beschickung eines Hochofens. Der Möller wird aus einem Einschleusbunker in einen darunter befindlichen Guteinlauftrichter (schematisch dargestellt) ausgeschleust. Vom Guteinlauftrichter aus gelangt der Möller über ein Einschleusrohr 2 auf eine innerhalb des Schurrenträgers angeordnete kipp- und drehbare Schurre 1 und von dort in den oberen Teil des Hochofens.Figure 1 shows a top seal with rotatable and tiltable chute 1 for loading of a blast furnace. The Möller becomes a sluice bunker in an infeed hopper underneath (shown schematically) is discharged. From the feed hopper, the Möller arrives via a feed pipe 2 on a tiltable and rotatable arranged within the chute carrier Chute 1 and from there to the upper part of the blast furnace.

    Der Schurrenträger 3 mit Schurre wird durch einen Drehantrieb, bestehend aus einem Motor 4, einem Ritzel 5 sowie einem Zahnkranz 6 in Rotation versetzt.The chute carrier 3 with chute is made up of a rotary drive consisting of a motor 4, a pinion 5 and a ring gear 6 set in rotation.

    Zur Kippbewegung ist ein weiterer Motor 7 vorgesehen, der über ein Ritzel 8 einen Zahnkranz 9 antriebt. Die Antriebselemente sind mittels des Lagers 10 gelagert. Der Zahnkranz 9 treibt das jeweilige Spindetzahnrad 11 von drei über den Umfang des Gichtverschlußgehäuses 12 verteilten Spindeln 13 an. Aufgrund der Drehbewegung hebt und senkt sich die Spindelmutter und nimmt dabei den zu dieser benachbart angeordneten Hubrahmen 14 mit. Benachbart zum Hubrahmen ist der Hubring 15 angeordnet. Die vertikale Bewegung des Hubrahmens 14 wird auf den Hubring 15 übertragen, während ein seitlich unterhalb des Hubrings angeordnetes Lager 16 die Drehbewegung des Hubrings aufnimmt. An dem Hubring 15 sind Gelenkstücke 17 mit ihrem ersten Ende 18 lösbar befestigt und gelagert (19). Das zweite Ende 20 der Gelenkstücke 17 ist an einem Verbindungsteil 21 der Kippwellen 22 lösbar befestigt. Der Angriff der Gelenkstücke 17 an dem Verbindungsteil 21 der Kippwellen 22 erfolgt exzentrisch, so daß die vertikale Bewegung des Hubrings 15 in eine entsprechende Drehbewegung der Kippwellen 22 umgewandelt wird. Die Kippwellen 22 sind in Lagerungen 23 gelagert. Sie durchdringen gasdicht die Innenwand 24 des Schurrenträgers 3. Das nach innen zeigende Ende 28 der Kippwellen 22 ist so gestaltet, daß die Drehschurre 1 einhängbar ist. Dabei kann eine aus Sicherheitsgründen vorteilhafte Verriegelung der Schurre 1 durch Kurzhubzylinder 25 erfolgen. Mit 26 und 27 sind obere und untere ringförmige Abdichtungen bezeichnet.A further motor 7 is provided for the tilting movement drives a ring gear 9. The drive elements are by means of the bearing 10 stored. The ring gear 9 drives the respective spindle gear 11 out of three the circumference of the top housing 12 distributed spindles 13. by virtue of the rotational movement raises and lowers the spindle nut while taking it the lifting frame 14 arranged adjacent to this. Adjacent the lifting ring 15 is arranged to the lifting frame. The vertical movement of the Lifting frame 14 is transferred to the lifting ring 15, while a laterally below of the cam ring arranged bearing 16, the rotational movement of the cam ring receives. On the cam ring 15 there are joint pieces 17 with their first end 18 releasably attached and stored (19). The second end 20 of the hinge pieces 17 is releasably attached to a connecting part 21 of the tilting shafts 22. The attack of the Joint pieces 17 on the connecting part 21 of the tilting shafts 22 are eccentric, so that the vertical movement of the cam ring 15 in a corresponding Rotational movement of the tilting shafts 22 is converted. The tilting waves 22 are in Bearings 23 stored. They penetrate the inner wall 24 of the gas-tight Chute carrier 3. The inward end 28 of the tilting shafts 22 is like this designed that the rotary chute 1 can be attached. One can be used for security reasons advantageous locking of the chute 1 by means of short-stroke cylinders 25 respectively. With 26 and 27, upper and lower annular seals are designated.

    Das Gehäuse 12 und die Antriebsmittel sind mit einem Deckel 29 verschließbar und gasdicht ausführbar. Der Innendruck ist durch Einfüllen von Stickstoff kontrollierbar.The housing 12 and the drive means can be closed with a cover 29 and gas-tight. The internal pressure can be checked by adding nitrogen.

    Claims (9)

    1. Charging equipment for a shaft furnace, particularly a blast furnace, with a material inlet hopper which is stationary and with a feed pipe (2), as well as a chute support (3) rotatable by means of a rotary drive (4 to 6) and a chute (1) which is connected with the chute support (3) and the pivot drive of which comprises a motor (7), which is arranged outside a stationary housing (12) and which by way of a pinion (8) drives a ring gear (9) causing a rotary spindle movement by way of a gearwheel and thus a raising and lowering movement of the spindle nut, which pivots the chute (1) by means of raising and lowering transmission means (14, 15, 17, 21), characterised in that the ring gear (9) comes into engagement with the spindle gearwheels (11) of at least two spindles (13), that the spindles (13) are fixedly mounted at the housing beyond of the circumference of the charging equipment and act on a non-rotating lifting frame (14), relative to which a lifting ring (15) connected with the chute (1) by way of further transmission means (17, 21) for pivoting the chute (1) is rotatable.
    2. Charging equipment according to claim 1, characterised in that the chute support has an inner wall which is penetrated by tip shafts (22) at which the chute (1) can be suspended.
    3. Charging equipment according to claim 2, characterised in that the transmission means comprises joint members (17) which are fastened to the lifting ring (15) and which convert the raising and lowering movement of the lifting ring (15) into a corresponding rotational movement of the tip shafts (22) by eccentric engagement at the tip shafts (22).
    4. Charging equipment according to claim 2 or 3, characterised in that the tip shafts (22) have at the first end (28) thereof means for suspending the chute (1) and at the second end thereof a region (21) extending perpendicularly to the shaft axis for connection with the joint members (17).
    5. Charging equipment according to claim 4, characterised in that hydraulic cylinders (25) are provided for locking the rotary chute (1) suspended at the tip shafts (22).
    6. Charging equipment according to claim 1, 2 or 3, characterised in that the drive means for the rotary and pivot movement of the chute support or the chute can be sealed by a cover (29) and the arising interior space can be loaded with a gas, the pressure of which is automatically kept above the pressure in the furnace chamber.
    7. Charging equipment according to claim 1, characterised in that three spindles (13) are provided.
    8. Charging equipment according to claim 1, characterised in that a bearing (16) for acceptance of the rotational movement of the lifting ring (15) is arranged laterally below the lifting ring.
    9. Charging equipment according to one of the preceding claims, characterised in that the rotary drive is composed of a motor (4), pinion (5) and ring gear (6).
    EP99959405A 1998-12-30 1999-12-11 Bell and hopper for shaft furnaces Expired - Lifetime EP1144695B1 (en)

    Applications Claiming Priority (5)

    Application Number Priority Date Filing Date Title
    DE19860902 1998-12-30
    DE19860902 1998-12-30
    DE19911637 1999-03-16
    DE19911637A DE19911637A1 (en) 1998-12-30 1999-03-16 Top seal for shaft ovens
    PCT/EP1999/009808 WO2000040762A1 (en) 1998-12-30 1999-12-11 Bell and hopper for shaft furnaces

    Publications (2)

    Publication Number Publication Date
    EP1144695A1 EP1144695A1 (en) 2001-10-17
    EP1144695B1 true EP1144695B1 (en) 2002-10-16

    Family

    ID=26051154

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP99959405A Expired - Lifetime EP1144695B1 (en) 1998-12-30 1999-12-11 Bell and hopper for shaft furnaces

    Country Status (15)

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    US (1) US6540958B1 (en)
    EP (1) EP1144695B1 (en)
    JP (1) JP4290892B2 (en)
    CN (1) CN1208473C (en)
    AT (1) ATE226260T1 (en)
    AU (1) AU768056B2 (en)
    BR (1) BR9916686A (en)
    CA (1) CA2358068A1 (en)
    CZ (1) CZ299041B6 (en)
    ES (1) ES2186424T3 (en)
    MX (1) MXPA01006642A (en)
    PL (1) PL193490B1 (en)
    RU (1) RU2237724C2 (en)
    TW (1) TW434319B (en)
    WO (1) WO2000040762A1 (en)

    Families Citing this family (11)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN100445061C (en) * 2005-12-15 2008-12-24 南京诚盟塑料机械实业有限公司 Multi screw stem material feeding machine
    EP1870651A1 (en) * 2006-06-21 2007-12-26 Paul Wurth S.A. Charging device for a shaft furnace
    LU91412B1 (en) * 2008-01-30 2009-07-31 Wurth Paul Sa Charging device for distributing bulk material
    LU91565B1 (en) * 2009-05-07 2010-11-08 Wurth Paul Sa A shaft furnace charging installation having a drive mechanism for a distribution chute.
    LU91716B1 (en) * 2010-08-06 2012-02-07 Wurth Paul Sa Distribution chute
    LU91844B1 (en) * 2011-07-22 2013-01-23 Wurth Paul Sa Charging device for shaft furnace
    LU91885B1 (en) * 2011-10-11 2013-04-12 Wurth Paul Sa Blast furnace installation
    CN102758041A (en) * 2012-07-30 2012-10-31 中冶南方工程技术有限公司 Upper annular sliding contact type tilting distributing device
    CN107310868B (en) * 2017-08-07 2022-08-30 中煤科工集团南京设计研究院有限公司 Explosion-proof solar 360-degree rotary fan-shaped cold-proof gate
    CN112161478A (en) * 2020-09-11 2021-01-01 河钢承德钒钛新材料有限公司 Device for putting in furnace body ramming material
    CN118049849B (en) * 2024-04-16 2024-06-25 泰州瑞沣环保科技有限公司 High-performance rotary kiln tail material sliding device and method

    Family Cites Families (10)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US1531788A (en) 1924-03-25 1925-03-31 Jefferson Eugene Dennison Kier plaiter
    US3780890A (en) * 1972-03-01 1973-12-25 Mckee A & Co Furnace charging apparatus
    DE2222386B2 (en) 1972-05-06 1974-07-25 Dingler-Anlagenbau Gmbh, 6660 Zweibruecken Charging device for shaft furnaces, in particular for blast furnaces
    JPS5111014B2 (en) 1973-01-31 1976-04-08
    FR2230246A5 (en) 1973-05-16 1974-12-13 Delattre Levivier Rotating chute charger for blast or shaft furnaces - with all working parts sealed in annular chamber for protection against hot gas and dust
    LU72956A1 (en) * 1975-07-11 1976-02-04
    LU80112A1 (en) 1978-08-16 1979-01-19
    LU80630A1 (en) * 1978-12-08 1979-04-09 Wurth Anciens Ets Paul METHOD AND INSTALLATION FOR LOADING A TANK OVEN
    JPS58210105A (en) 1982-05-29 1983-12-07 Nippon Steel Corp Driving device of in-furnace chute in charging device for blast furnace
    LU87938A1 (en) * 1991-05-15 1992-12-15 Wurth Paul Sa LOADING SYSTEM FOR A TANK OVEN

    Also Published As

    Publication number Publication date
    PL353641A1 (en) 2003-12-01
    ATE226260T1 (en) 2002-11-15
    RU2237724C2 (en) 2004-10-10
    CZ299041B6 (en) 2008-04-09
    US6540958B1 (en) 2003-04-01
    JP2002534599A (en) 2002-10-15
    TW434319B (en) 2001-05-16
    WO2000040762A1 (en) 2000-07-13
    MXPA01006642A (en) 2003-06-24
    CN1332806A (en) 2002-01-23
    ES2186424T3 (en) 2003-05-01
    CN1208473C (en) 2005-06-29
    PL193490B1 (en) 2007-02-28
    BR9916686A (en) 2001-09-25
    JP4290892B2 (en) 2009-07-08
    CZ20012425A3 (en) 2002-02-13
    AU768056B2 (en) 2003-11-27
    AU1658400A (en) 2000-07-24
    CA2358068A1 (en) 2000-07-13
    EP1144695A1 (en) 2001-10-17

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