EP0133877A2 - Charging and discharging device for furnaces, particularly for tunnel furnaces with trucks and rotary furnaces - Google Patents

Charging and discharging device for furnaces, particularly for tunnel furnaces with trucks and rotary furnaces Download PDF

Info

Publication number
EP0133877A2
EP0133877A2 EP84106325A EP84106325A EP0133877A2 EP 0133877 A2 EP0133877 A2 EP 0133877A2 EP 84106325 A EP84106325 A EP 84106325A EP 84106325 A EP84106325 A EP 84106325A EP 0133877 A2 EP0133877 A2 EP 0133877A2
Authority
EP
European Patent Office
Prior art keywords
tube
charging
furnaces
bogie
support arm
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.)
Granted
Application number
EP84106325A
Other languages
German (de)
French (fr)
Other versions
EP0133877B1 (en
EP0133877A3 (en
Inventor
Heinrich Dipl.-Ing. Patalon
Alfred Dipl.-Ing. Mues
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheiner Maschinenfabrik Windhoff Akt-Ges
Didier Engineering GmbH
Original Assignee
Rheiner Maschinenfabrik Windhoff Akt-Ges
Didier Engineering GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rheiner Maschinenfabrik Windhoff Akt-Ges, Didier Engineering GmbH filed Critical Rheiner Maschinenfabrik Windhoff Akt-Ges
Priority to AT84106325T priority Critical patent/ATE41995T1/en
Publication of EP0133877A2 publication Critical patent/EP0133877A2/en
Publication of EP0133877A3 publication Critical patent/EP0133877A3/en
Application granted granted Critical
Publication of EP0133877B1 publication Critical patent/EP0133877B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • F27D3/06—Charging or discharging machines on travelling carriages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/16—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/38—Arrangements of devices for charging
    • 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
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0046—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising one or more movable arms, e.g. forks
    • 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
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0069—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities the device being suspended, e.g. from a crane

Definitions

  • the invention relates to a charging and decharging device for heating furnaces, in particular bogie push-through furnaces and rotary hearth furnaces.
  • the positioning of the heating goods on the bogie wagon or on the benches of the rotary hearth furnaces must be at a relatively large distance so that the gripping tongs of the charging and decharging devices reach through between the individual parts of the stored heating goods and individual billets or od . dgL. can take.
  • these distances are also within the inner radius of the rotary hearth between the individual billets or dgL. must be given, this leads to an undesirably large unoccupied area of the rotary hearth, especially in the outer areas.
  • the invention is therefore based on the object of fulfilling all of these requirements simultaneously and in each case as optimally as possible both for bogie push-through furnaces and for rotary hearth furnaces.
  • This object on which the invention is based is achieved by a pivotable lifting device L.
  • the pivotable design of the lifting fork creates a direction of movement which, in addition to the longitudinal movability of the entire charging or decharging device, does not have to be designed to be movable in the additional direction of movement.
  • the support arm is preferably designed similar to a U that is open at the bottom, the lifting forks being attached to a tube rotatably mounted in the two lower ends of the U legs and with grooves on the top of the ceramic benches matched to the lifting power on the top of the bogie wagons or the lathe work together.
  • Fig. 1, 1 is generally a device for heating billets, slabs or. referred to, which consists of an actual furnace 2, are pushed through the bogie, not shown, in the direction of the arrow.
  • the bogie wagons, not shown, are loaded by a charging device 3 and unloaded again by a decharging device 4 at the end of the furnace.
  • the bogie wagons After leaving the furnace 2, the bogie wagons arrive on a transverse transfer platform 5, with the help of which they are moved transversely to their previous direction of travel and reach a return track 6.
  • This return track 6 transports the bogie wagons in the opposite direction to the direction of travel through the furnace to a transverse transfer platform 7, which moves the bogie wagons to the entrance of the furnace 2.
  • There the cycle begins again along the respective arrow directions.
  • FIG. 2 shows a cross section through the furnace 2 in the region of the charging device 3 on a larger scale.
  • the heating material 9 is transported close to the furnace 2 up to a position specified by stoppers, not shown.
  • a supporting arm 11 is arranged which is mounted in a known manner and on the roadway 1 0 longitudinally movable. The drive means for this as well as for achieving a small stroke movement of the support arm 11 are not shown for reasons of clarity.
  • the support arm 11 has the shape of a U which is open at the bottom, a tube 12 being rotatably mounted on the lower free ends of the two legs of the U and being pivotably arranged with the aid of a hydraulic cylinder 14. Together with several tines 15, the tube 12 forms a lifting fork, the tines 15 being arranged in such a way that they can cooperate with grooves 16 in ceramic banks 17 of bogie wagons 18 in such a way that they dip into these grooves 16 and transversely to the direction of travel of the bogie wagons 18 Lying KnüppeL or the like. Can grasp by a pivoting movement.
  • the height adjustability of the support arm 11 is such that when the tines 15 are swiveled up and the support arm 11 is lowered, the lowest positions of the tines 15 are above the benches 17 of the hearth trolley and that when the prongs 15 are swiveled but the support arm 11 is raised, the lowest positions of the prongs 15 are also above the benches 17 of the bogie 18 are arranged.
  • the charging or decharging device can therefore be moved without problems in these settings.
  • the entire charging machine 3 can move laterally out of the oven 2, while the bogie wagon 18 continues to clock by one division. The described cycle then begins again.
  • the newly introduced pieces are attached to the already deposited heat 9 from the outside. Because this is not done using tongs, only a small distance between the individual pieces of the heating material is required.
  • the oven is decharged in reverse the same way, the opening of the tines 15 in the decharging device 4 being oriented in exactly the opposite direction to that of the charging device 3, so that the pieces of the heat material 9 to be removed are removed from the outside and no large distance between the individual pieces is necessary here either.
  • the area of the oven 2 arranged behind the decharging device 4 has a very flat ceiling, which is brought close to the surface of the ceramic benches 17 of the bogie wagon 18, so that doors are no longer required here in order to achieve good heat tightness of the furnace.
  • the area of the furnace 2 in front of the charging device 3 is also designed accordingly.
  • lifting and lowering platforms can also be provided, in which case the return track 6 would run below the furnace 2.
  • a rotary hearth furnace is conceivable instead of the bogie push-through oven shown, in which case the hearth of the rotary hearth furnace must have annularly arranged benches and annularly arranged grooves_ corresponding to the illustrated grooves 16, into which the pivotable prongs 15 - as above described - immerse and swing out.
  • the forces to turn the tube 12 and pivot the tines 15 are ratios moderately low and the forces to move and lift the entire device are so low that they can be easily used by relatively small motors.
  • the construction of the actual charging or decharging machine is extremely simple and furthermore does not require any complex feed devices.
  • the small stroke of the entire device also simplifies the heat sealing, so that good heat insulation of the stoves can be achieved in conjunction with the pulled-down furnace ends.

Abstract

The invention relates to a charging and discharging device with a vertically and longitudinally movable supporting arm. According to the invention, a pivotable lifting fork is provided which is fastened, horizontally and rotatably about its longitudinal axis, to the free ends of a supporting arm extending essentially in the form of a U and open at the bottom.

Description

Die Erfindung betrifft eine Chargier- und Dechargiereinrichtung für Wärmöfen, insbesondere Herdwagen-Durchschuböfen und Drehherdöfen.The invention relates to a charging and decharging device for heating furnaces, in particular bogie push-through furnaces and rotary hearth furnaces.

Es sind Chargier- und Dechargiermaschinen bei Herdwagen-Durchschuböfen und bei Drehherdöfen bekannt mit hebbaren oder schwenkbaren Manipulatorarmen, mit HubgabeLn oder mit Zangen.Charging and decharging machines in bogie push-through ovens and in rotary hearth ovens with lifting or swiveling manipulator arms, with lifting levers or with pliers are known.

Die ManipuLatorarme und die HubgabeLn ragen dabei mit ihrem wirksamen Bereich teilweise so weit von der sie tragenden Aufhängung vor, daß sie sich über diesen Bereich etwas absenken und dadurch beim Aufgeben des Wärmgutes auf die einzelnen Herdwagen oder auf die Bänke des Drehherdofens die einzelnen Brammen, KnüppeL od.dgl. schräghängend freigeben, so daß diese zuerst nur mit einer Kante auf die keramische Bank auftreffen und durch die dabei entstehenden FLächenpressungen die Bank sehr Leicht beschädigen können. Werden zwei Brammen, KnüppeL od.dgl. direkt hintereinander von der Chargiereinrichtung erfaßt und auch gleichzeitig freigegeben, so kann u.U. der zweite Knüppel od.dgl. beim Aufgeben auf die keramische Bank noch frei in der Luft hängen, während der erste die Bank schon berührt, so daß der zweite KnüppeL ein Stück freien FaLLs zurücklegt, bevor er auf der keramischen Bank aufschlägt. Die dadurch möglichen Beschädigungen der keramischen Bänke führen zu Langen StiLLstands- und Reparaturzeiten und damit zu hohen Kosten.The manipulator arms and the lifting fork protrude with their effective area sometimes so far from the suspension that they carry that they sink somewhat over this area and thereby the individual slabs, billets when the heat is placed on the individual bogie wagons or on the benches of the rotary hearth furnace or the like. Release at an angle so that they only hit the ceramic bench with one edge and can easily damage the bench due to the resulting surface pressure. If two slabs, KnüppeL or the like. Captured directly in succession by the charging device and also released at the same time, the second stick or the like can possibly. when hanging on the ceramic bench, hang freely in the air while the first is already touching the bench, so that the second stick covers a piece of free fall before it hits the ceramic bench. This can result in damage to the ceramic benches at long service and repair times and thus at high costs.

Je kleiner die Hubhöhe und die Verfahrwege derartiger Einrichtungen ausgelegt werden können, desto einfacher wird die Abdichtung gegenüber den Ofenwänden, die im Interesse möglichst geringer Wärmeverluste unbedingt notwendig ist. Auch ist eine bessere EinhaLtung schneller Taktzeiten möglich. Außerdem sind geringere Antriebs- und BremsLeistungen erforderlich.The smaller the lifting height and the travel paths of such devices, the easier the sealing against the furnace walls, which is absolutely necessary in the interest of minimizing heat losses. Better compliance with faster cycle times is also possible. In addition, lower drive and braking powers are required.

Bei den teilweise verwendeten Greifzangen wird nachteilig empfunden, daß die Positionierung des Wärmguts auf den Herdwagen oder auf den Bänken der Drehherdöfen einen relativ großen Abstand aufweisen muß, damit die Greifzangen der Chargier- und Dechargiereinrichtungen zwischen den einzelnen TeiLen des abgelegten Wärmgutes hindurchgreifen und einzelne KnüppeL od. dgL. ergreifen können. Insbesondere bei den Drehherdöfen, bei denen diese Abstände auch im inneren Radius des Drehherdes zwischen den einzelnen KnüppeLn od. dgL. gegeben sein müssen, führt dieses zu einer unerwünscht großen unbelegten FLäche des Drehherdes,insbesondere in den äußeren Bereichen.With the partially used gripping tongs, it is felt to be disadvantageous that the positioning of the heating goods on the bogie wagon or on the benches of the rotary hearth furnaces must be at a relatively large distance so that the gripping tongs of the charging and decharging devices reach through between the individual parts of the stored heating goods and individual billets or od . dgL. can take. Especially with the rotary hearth furnaces, where these distances are also within the inner radius of the rotary hearth between the individual billets or dgL. must be given, this leads to an undesirably large unoccupied area of the rotary hearth, especially in the outer areas.

Durch die Verwendung von Hubprismen od. dgl. werden die Zuführungssysteme für die vorgeschlagenen Chargier- und Dechargiereinrichtungen relativ aufwendig.By using lifting prisms or the like, the feed systems for the proposed charging and decharging devices are relatively complex.

Im weiteren wird insbesondere von einer Chargier-und Dechargiervorrichtung ausgegangen mit einem oder mehreren hoch- und Längsverfahrbaren Tragarmen.Furthermore, a charging and decharging device with one or more support arms that can be moved up and down is assumed.

Die Forderungen nach der Einhaltung kurzer Taktzeiten, nach geringen Wärmeverlusten nach möglichst sanfter AbLage des Wärmgutes auf den keramischen Bänken sowie nach einfachem Aufbau und Betrieb werden durch die bekannten Vorrichtungen jeweils nur teilweise erfüllt.The demands for compliance with short cycle times, for low heat losses after the most gentle placement of the heating material on the ceramic benches and for simple construction and operation are only partially met by the known devices.

Der Erfindung Liegt daher die Aufgabe zugrunde, alle diese Forderungen gleichzeitig und jeweils möglichst optimal sowohl für Herdwagen-Durchschub- öfen als auch für Drehherdöfen zu erfüllen.The invention is therefore based on the object of fulfilling all of these requirements simultaneously and in each case as optimally as possible both for bogie push-through furnaces and for rotary hearth furnaces.

Diese der Erfindung zugrundeliegende Aufgabe wird gelöst durch eine schwenkbare HubgabeL. Durch die schwenkbare AusbiLdung der HubgabeL wird eine Bewegungsrichtung geschaffen, die zusätzlich zur Längsverfahrbarkeit der gesamten Chargier- oder Dechargiervorrichtung wirkt, ohne daß diese gesamte Einrichtung in der zusätzlichen Bewegungsrichtung verfahrbar ausgebildet sein muß.This object on which the invention is based is achieved by a pivotable lifting device L. The pivotable design of the lifting fork creates a direction of movement which, in addition to the longitudinal movability of the entire charging or decharging device, does not have to be designed to be movable in the additional direction of movement.

Weitere vorteilhafte AusgestaLtungen der Chargier-und Dechargiereinrichtung ergeben sich aus den Unteransprüchen.Further advantageous embodiments of the charging and decharging device result from the subclaims.

So ist beispielsweise der Tragarm vorzugsweise einem unten offenen U ähnlich ausaebildet, wobei die Hubgabeln an einem drehbar in den beiden unteren Enden der U-Schenkel gelagerten Rohr angebracht sind und mit Nuten auf der Oberseite der auf die HubgabeLn abgestimmten keramischen Bänke auf der Oberseite der Herdwagen bzw. des Drehherdes zusammenwirken.For example, the support arm is preferably designed similar to a U that is open at the bottom, the lifting forks being attached to a tube rotatably mounted in the two lower ends of the U legs and with grooves on the top of the ceramic benches matched to the lifting power on the top of the bogie wagons or the lathe work together.

Ein Ausführungsbeispiel einer erfindungsgemäßen Chargier- und Dechargiervorrichtung wird anhand der Zeichnungen näher erläutert. Dabei zeigen

  • Fig. 1 schematisch den prinzipiellen Aufbau einer an sich bekannten Vorrichtung zum Erwärmen von Brammen, KnüppeLn od. dgl., bei der aber die erfindungsgemäße Chargier- und Dechargiervorrichtung eingesetzt ist,
  • Fig. 2 einen Schnitt gemäß der Linie 2 - 2 in Fig. 1 in größerem Maßstab und
  • Fig. 3 einen Schnitt gemäß der Linie 3 - 3 in Fig. 1 .
An embodiment of a charging and decharging device according to the invention is based on the Drawings explained in more detail. Show
  • 1 schematically shows the basic structure of a device known per se for heating slabs, billets or the like, but in which the charging and decharging device according to the invention is used,
  • Fig. 2 shows a section along the line 2 - 2 in Fig. 1 on a larger scale and
  • 3 shows a section along line 3 - 3 in FIG. 1.

In Fig. 1 ist mit 1 allgemein eine Vorrichtung zum Erwärmen von Knüppeln,Brammen od. dgL. bezeichnet, die aus einem eigentlichen Ofen 2 besteht, durch den nicht dargestellte Herdwagen in PfeiLrichtung geschoben werden. Die nicht dargestellten Herdwagen werden durch eine Chargiervorrichtung 3 beLaden und am Ende des Ofens durch eine Dechargiervorrichtung 4 wieder entladen.In Fig. 1, 1 is generally a device for heating billets, slabs or. referred to, which consists of an actual furnace 2, are pushed through the bogie, not shown, in the direction of the arrow. The bogie wagons, not shown, are loaded by a charging device 3 and unloaded again by a decharging device 4 at the end of the furnace.

Nach VerLassen des Ofens 2 gelangen die Herdwagen auf eine Querverschiebebühne 5, mit HiLfe derer sie quer zu ihrer bisherigen Fahrtrichtung verschoben werden und auf ein Rücklaufgleis 6 gelangen. Dieses Rücklaufgleis 6 transportiert die Herdwagen gegenLäufig zur Fahrtrichtung durch den Ofen zu einer Querverschiebebühne 7, die die Herdwagen zum Eingang des Ofens 2 verschiebt. Dort beginnt der KreisLauf entlang den jeweiligen PfeiLrichtungen von neuem.After leaving the furnace 2, the bogie wagons arrive on a transverse transfer platform 5, with the help of which they are moved transversely to their previous direction of travel and reach a return track 6. This return track 6 transports the bogie wagons in the opposite direction to the direction of travel through the furnace to a transverse transfer platform 7, which moves the bogie wagons to the entrance of the furnace 2. There the cycle begins again along the respective arrow directions.

Fig. 2 zeigt in größerem Maßstab einen Querschnitt durch den Ofen 2 im Bereich der Chargiervorrichtung 3. Durch einen Rollgang 8 außerhalb des eigentlichen Ofens 2 wird das Wärmgut 9 nahe an den Ofen 2 bis zu einer durch nicht dargestellte Stopper vorgegebenen SteLLe transportiert. Auf einer oberhalb des Ofens 2 quer zur ofenlängsachse ausgerichteten Fahrbahn 1o ist ein Tragarm 11 angeordnet, der in an sich bekannter Weise an und auf der Fahrbahn 10 Längsverfahrbar gelagert ist. Die Antriebsmittel hierzu sowie zum Erreichen einer geringen Hubbewegung des Tragarmes 11 sind aus Gründen der übersichtlichkeit nicht dargestellt.2 shows a cross section through the furnace 2 in the region of the charging device 3 on a larger scale. By means of a roller table 8 outside the actual furnace 2, the heating material 9 is transported close to the furnace 2 up to a position specified by stoppers, not shown. On one above the furnace 2 aligned transversely to the longitudinal axis of the oven roadway 1o a supporting arm 11 is arranged which is mounted in a known manner and on the roadway 1 0 longitudinally movable. The drive means for this as well as for achieving a small stroke movement of the support arm 11 are not shown for reasons of clarity.

Der Tragarm 11 weist die Form eines nach unten offenen U auf, wobei an den unteren freien Enden der beiden Schenkel des U ein Rohr 12 drehbar geLagert und mit HiLfe eines HydrozyLinders 14 schwenkbar angeordnet ist. Zusammen mit mehreren Zinken 15 bildet das Rohr 12 eine Hubgabel, wobei die Zinken 15 so angeordnet sind, daß sie mit Nuten 16 in keramischen Bänken 17 von Herdwagen 18 derart zusammenwirken können, daß sie in diese Nuten 16 eintauchen und quer zur Fahrtrichtung der Herdwagen 18 Liegende KnüppeL od. dgl. durch eine Schwenkbewegung erfassen können.The support arm 11 has the shape of a U which is open at the bottom, a tube 12 being rotatably mounted on the lower free ends of the two legs of the U and being pivotably arranged with the aid of a hydraulic cylinder 14. Together with several tines 15, the tube 12 forms a lifting fork, the tines 15 being arranged in such a way that they can cooperate with grooves 16 in ceramic banks 17 of bogie wagons 18 in such a way that they dip into these grooves 16 and transversely to the direction of travel of the bogie wagons 18 Lying KnüppeL or the like. Can grasp by a pivoting movement.

Die HöhenversteLLbarkeit des Tragarmes 11 ist derart bemessen, daß bei hochgeschwenkten Zinken 15 und abgesenktem Tragarm 11 sich die tiefsten StelLen der Zinken 15 oberhalb der Bänke 17 des Herdwagens befinden und daß bei abgeschwenkten Zinken 15 aber gehobenem Tragarm 11 ebenfalls die untersten SteLLen der Zinken 15 oberhalb der Bänke 17 des Herdwagens 18 angeordnet sind. In diesen SteLLungen kann also die Chargier- bzw. Dechargiervorrichtung problemlos verfahren werden.The height adjustability of the support arm 11 is such that when the tines 15 are swiveled up and the support arm 11 is lowered, the lowest positions of the tines 15 are above the benches 17 of the hearth trolley and that when the prongs 15 are swiveled but the support arm 11 is raised, the lowest positions of the prongs 15 are also above the benches 17 of the bogie 18 are arranged. The charging or decharging device can therefore be moved without problems in these settings.

Ein Chargiervorgang verläuft wie folgt:

  • Mit hochgeschwenkten Zinken 15 fährt der Tragarm 11 in abgesenkter SteLLung aus dem Ofen 2 über den Rollgang 8, bis sich die Zinken 15 oberhalb eines vorpositionierten Wärmgutes 9 befinden. Dabei sind die Abstände der einzelnen RoLLen des Rollganges 9 so bemessen, daß die Zinken zwischen diesen RoLLen hindurch verschwenkbar sind. Durch ein Einschwenken der Zinken 15 und ein Anheben des Tragarmes 11 wird das Wärmgut 9 ergriffen und anschließend in den Ofen 2 verfahren. Nach Erreichen der Endposition wird der Tragarm 11 abgesenkt, wobei die Zinken 15 zwischen den keramischen Bänken 17 des Herdwagens 18 in die Nuten 16 eintauchen. Das Wärmgut wird dadurch sanft auf den Bänken 17 abgelegt, wobei eine Fixierung der Lage des Wärmgutes durch eine entsprechend profilierte Oberfläche der keramischen Bänke erreicht werden kann.
A charging process is as follows:
  • With the tines 15 swung up, the support arm 11 moves in the lowered position out of the oven 2 over the roller table 8 until the tines 15 are above a pre-positioned heat good 9. The distances between the individual rolls of the roller table 9 are dimensioned such that the tines can be pivoted through between these rolls. By pivoting the tines 15 and lifting the support arm 11, the material to be heated 9 is gripped and then moved into the furnace 2. After reaching the end position, the support arm 11 is lowered, the tines 15 being immersed in the grooves 16 between the ceramic benches 17 of the bogie wagon 18. The material to be heated is thereby deposited gently on the benches 17, the position of the material to be fixed being able to be fixed by a correspondingly profiled surface of the ceramic benches.

Nach einem Ausschwenken der Zinken 15 aus den Nuten 16 bei abgesenktem Tragarm 11 kann die gesamte Chargiermaschine 3 seitlich aus dem Ofen 2 herausfahren, während die Herdwagen 18 um eine TeiLung weitertakten. AnschLießend beginnt der geschilderte KreisLauf von neuem.After swiveling the tines 15 out of the grooves 16 with the support arm 11 lowered, the entire charging machine 3 can move laterally out of the oven 2, while the bogie wagon 18 continues to clock by one division. The described cycle then begins again.

Wie insbesondere aus Fig. 3 zu sehen ist, werden die neueingeführten Stücke von außen an das schon abgeLagerte Wärmgut 9 angelagert. Dadurch, daß dies nicht durch Zangen erfolgt, ist nur ein geringer Abstand zwischen den einzelnen Stücken des Wärmgutes erforderLich.As can be seen in particular from Fig. 3, the newly introduced pieces are attached to the already deposited heat 9 from the outside. Because this is not done using tongs, only a small distance between the individual pieces of the heating material is required.

Das Dechargieren des Ofens erfolgt umgekehrt in gleicher Weise, wobei bei der Dechargiervorrichtung 4 die öffnung der Zinken 15 genau umgekehrt zu denen der Chargiereinrichtung 3 ausgerichtet ist, so daß hier von außen die zu entnehmenden Stücke des Wärmgutes 9 abgenommen werden und auch hier kein großer Abstand zwischen den einzelnen Stücken nötig ist.The oven is decharged in reverse the same way, the opening of the tines 15 in the decharging device 4 being oriented in exactly the opposite direction to that of the charging device 3, so that the pieces of the heat material 9 to be removed are removed from the outside and no large distance between the individual pieces is necessary here either.

Weiterhin ist in Fig. 3 deutlich zu erkennen, daß der hinter der Dechargiervorrichtung 4 angeordnete Bereich des Ofens 2 eine sehr flach verlaufende Decke aufweist, die nahe an die Oberfläche der keramischen Bänke 17 der Herdwagen 18 herangeführt ist, so daß hier keine Türen mehr erforderlich sind, um eine gute Wärmedichtigkeit des Ofens zu erreichen. Entsprechend ist auch der Bereich des Ofens 2 vor der Chargiervorrichtung 3 ausgebildet.Furthermore, it can be clearly seen in FIG. 3 that the area of the oven 2 arranged behind the decharging device 4 has a very flat ceiling, which is brought close to the surface of the ceramic benches 17 of the bogie wagon 18, so that doors are no longer required here in order to achieve good heat tightness of the furnace. The area of the furnace 2 in front of the charging device 3 is also designed accordingly.

Abweichend von den in Fig. 1 dargestellten Querverschiebebühnen 5 und 7 können auch Hub- und Senkbühnen vorgesehen sein, wobei in dem Fall das Rücklaufgleis 6 unterhalb des Ofens 2 verlaufen würde.In a departure from the transverse sliding platforms 5 and 7 shown in FIG. 1, lifting and lowering platforms can also be provided, in which case the return track 6 would run below the furnace 2.

Weiterhin ist abweichend von dem dargestellten Ausführungsbeispiel anstelle des dargestellten Herdwagen-Durchschubofens die Verwendung eines Drehherdofens denkbar, wobei in diesem FaLL der Herd des Drehherdofens ringförmig angeordnete Bänke aufweisen muß sowie ringförmig angeordnete Nuten_entsprechend den dargestellten Nuten 16, in welche die schwenkbaren Zinken 15 - wie oben beschrieben - eintauchen und ausschwenken können.Furthermore, deviating from the exemplary embodiment shown, the use of a rotary hearth furnace is conceivable instead of the bogie push-through oven shown, in which case the hearth of the rotary hearth furnace must have annularly arranged benches and annularly arranged grooves_ corresponding to the illustrated grooves 16, into which the pivotable prongs 15 - as above described - immerse and swing out.

Die zum Drehen des Rohres 12 und zum Schwenken der Zinken 15 aufzuwendenden Kräfte sind verhältnismäßig gering und auch die zum Verfahren und Heben der gesamten Einrichtung aufzuwendenden Kräfte sind so gering, daß sie mühelos von relativ kleinen Motoren aufgewandt werden können. Darüberhinaus ist der Aufbau der eigentlichen Chargier- bzw. Dechargiermaschine außerordentlich einfach und erfordert weiterhin keine aufwendigen Zuführeinrichtungen. Durch die einfachen auszuführenden Bewegungen, die kurzen Wege und dadurch, daß sofort nach dem Hochschwenken der Zinken 15 die eigentLiche Chargier- bzw. Dechargiermaschine verfahrbar ist, werden außerordentlich kurze Taktzeiten mögLich. Der geringe Hub der gesamten Einrichtung vereinfacht dabei auch die Wärmeabdichtung, so daß in Verbindung mit den heruntergezogen ausgebildeten Ofenenden eine gute Wärmedämmung der öfen erreicht werden kann.The forces to turn the tube 12 and pivot the tines 15 are ratios moderately low and the forces to move and lift the entire device are so low that they can be easily used by relatively small motors. In addition, the construction of the actual charging or decharging machine is extremely simple and furthermore does not require any complex feed devices. The simple movements to be carried out, the short paths and the fact that the actual charging or decharging machine can be moved immediately after the tines 15 have been swiveled up, make extremely short cycle times possible. The small stroke of the entire device also simplifies the heat sealing, so that good heat insulation of the stoves can be achieved in conjunction with the pulled-down furnace ends.

Die Forderungen nach immer größer werdenden VerarbeitungsLeistungen und dadurch resultierenden kurzen Taktzeiten sowie nach geringen WärmeverLusten.nach möglichst sanfter AbLage des Wärmgutes auf die keramischen Bänke sowie nach einem einfachen Aufbau und Betrieb werden durch die vorgestellte Einrichtung in kombinierter Weise erfüllt.The requirements for increased processing performance and the resulting short cycle times as well as low heat losses. After the warmest possible placement of the heating goods on the ceramic benches as well as simple installation and operation are met in a combined manner by the device presented.

Claims (12)

1. Chargier- und Dechargiereinrichtung für Wärmöfen, insbesondere Herdwagen-Durchschub- öfen und Drehherdöfen mit einem hoch- und Längsverfahrbaren Tragarm, gekennzeichnet durch an dem Tragarm (11) schwenkbar geLagerte HubgabeLn (Rohr (12) und Zinken (15)).1. Charging and decharging device for heating ovens, in particular bogie push-through ovens and rotary hearth ovens with a support arm that can be moved up and down, characterized by lifting levers (tube (12) and tines (15)) pivotably mounted on the support arm (11). 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Hubgabel durch ein um seine Längsachse drehbares Rohr (12) mit Zinken (15) gebildet wird.2. Device according to claim 1, characterized in that the lifting fork is formed by a tube (12) rotatable about its longitudinal axis with prongs (15). 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Tragarm (11) im wesentlichen U-förmig ausgebildet ist.3. Device according to claim 1 or 2, characterized in that the support arm (11) is substantially U-shaped. 4. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Rohr (12) am offenen Ende eines im wesentlichen U-förmigen Tragarms4. The device according to claim 2, characterized records that the tube (12) at the open end of a substantially U-shaped bracket (11) in den freien Enden der beiden U-Schenkel gelagert ist.(11) is mounted in the free ends of the two U-legs. 5. Vorrichtung nach Anspruch 1, gekennzeichnet durch eine im wesentlichen waagerechte Ausrichtung des Rohres (12).5. The device according to claim 1, characterized by a substantially horizontal orientation of the tube (12). 6. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, gekennzeichnet durch eine den Tragarm (11) senkrecht zur Fahrtrichtung von Herdwagen (18) bzw. eines Drehherdes in einen Ofen (2) aus- und einverfahrbar führende Fahrbahn (1o).6. The device according to one or more of the preceding claims, characterized by a supporting arm (11) perpendicular to the direction of travel of bogie wagons (18) or a rotary hearth in a furnace (2) extending and retractable guideway (1o). 7. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, gekennzeichnet durch auf die Zinken (15) abgestimmte Nuten (16) in keramischen Bänken (17) auf der Oberseite der Herdwagen (18) bzw. des Drehherdes.7. The device according to one or more of the preceding claims, characterized by the tines (15) matched grooves (16) in ceramic banks (17) on the top of the bogie (18) or the rotary hearth. 8. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, gekennzeichnet durch eine dem Wärmgut (9) angepaßte quer zur Fahrtrichtung der Herdwagen (18) bzw. des Drehherdes verlaufende ProfiLierung der Oberseite der Bänke (17).8. The device according to one or more of the preceding claims, characterized by one of the heating material (9) adapted transversely to the direction of travel of the bogie wagon (18) or the rotary hearth ProfiLierung the top of the banks (17). 9. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, gekennzeichnet durch einen am Tragarm (11) und dem Rohr (12) befestigten HydrozyLinder (14) zum Schwenken des Rohres (12) und der Zinken (15).9. The device according to one or more of the preceding claims, characterized by a HydrozyLinder (14) attached to the support arm (11) and the tube (12) for pivoting the tube (12) and the prongs (15). 10. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, gekennzeichnet durch eine Zuführung des Wärmgutes (9) zur der Chargiereinrichtung (3) mit HiLfe eines Rollgangs (8).1 0 . Device according to one or more of the preceding claims, characterized by supplying the heat material (9) to the charging device (3) with the aid of a roller table (8). 11. Vorrichtung nach Anspruch 10, gekennzeichnet durch eine auf die HubgabeL abgestimmte Positionierung der einzeLnen Stücke des Wärmgutes (9) durch entsprechende Stopper am Rollgang (8).11. The device according to claim 1 0 , characterized by a positioning of the individual pieces of the heat material (9) matched to the stroke level by appropriate stoppers on the roller table (8).
EP84106325A 1983-08-10 1984-06-02 Charging and discharging device for furnaces, particularly for tunnel furnaces with trucks and rotary furnaces Expired EP0133877B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84106325T ATE41995T1 (en) 1983-08-10 1984-06-02 CHARGING AND DECHARGING DEVICE FOR HEATING FURNACES, PARTICULARLY CARRIAGE FURNACES AND ROTARY HEART FURNACES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3328814A DE3328814A1 (en) 1983-08-10 1983-08-10 CHARGING AND DECHARGING DEVICE FOR HEATER OVENS, ESPECIALLY OVEN WAGON SLIDING OVENS AND TURNOVER OVENS
DE3328814 1983-08-10

Publications (3)

Publication Number Publication Date
EP0133877A2 true EP0133877A2 (en) 1985-03-13
EP0133877A3 EP0133877A3 (en) 1987-01-07
EP0133877B1 EP0133877B1 (en) 1989-04-05

Family

ID=6206198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84106325A Expired EP0133877B1 (en) 1983-08-10 1984-06-02 Charging and discharging device for furnaces, particularly for tunnel furnaces with trucks and rotary furnaces

Country Status (7)

Country Link
US (1) US4568278A (en)
EP (1) EP0133877B1 (en)
JP (1) JPS6039116A (en)
AT (1) ATE41995T1 (en)
DE (2) DE3328814A1 (en)
ES (1) ES535028A0 (en)
ZA (1) ZA844702B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990014741A1 (en) * 1989-05-16 1990-11-29 Moen Asbjoern A plant for conductive electrical heating of steel blanks
FR2652028A1 (en) * 1989-09-21 1991-03-22 Stein Heurtey Device for turning steelworks products of square or rectangular cross-section through 90 DEG

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2368615A (en) * 1943-12-03 1945-02-06 Timken Roller Bearing Co Tongs mechanism
DE869974C (en) * 1951-07-20 1953-03-09 Ofu Ofenbau Union G M B H At the same time serving as a loading and unloading device for glow furnaces
DE1927618B1 (en) * 1969-05-30 1970-10-08 Ignis Huettenbau Ag Device for pulling blocks and billets of various lengths from industrial furnaces, especially rotary hearth furnaces
DE1920804A1 (en) * 1969-04-24 1970-11-12 Waldrich Gmbh H A Device for automatic roll change on roll grinders or the like.
DE2113148A1 (en) * 1971-03-18 1972-09-21 Reinhard Haase Single or multi-tong feeding machine for rotary hearth ovens

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622861A (en) * 1950-03-08 1952-12-23 Randal E Talley Rotary hearth furnace
US2605006A (en) * 1951-06-05 1952-07-29 Du Pont Apparatus for charging metal ingots into molten metal
US4453876A (en) * 1981-05-14 1984-06-12 Arpin Julien J Fireplace log and coal feeder
US4412813A (en) * 1982-02-02 1983-11-01 Alco Standard Corporation Rotary hearth furnace and method of loading and unloading the furnace

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2368615A (en) * 1943-12-03 1945-02-06 Timken Roller Bearing Co Tongs mechanism
DE869974C (en) * 1951-07-20 1953-03-09 Ofu Ofenbau Union G M B H At the same time serving as a loading and unloading device for glow furnaces
DE1920804A1 (en) * 1969-04-24 1970-11-12 Waldrich Gmbh H A Device for automatic roll change on roll grinders or the like.
DE1927618B1 (en) * 1969-05-30 1970-10-08 Ignis Huettenbau Ag Device for pulling blocks and billets of various lengths from industrial furnaces, especially rotary hearth furnaces
DE2113148A1 (en) * 1971-03-18 1972-09-21 Reinhard Haase Single or multi-tong feeding machine for rotary hearth ovens

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990014741A1 (en) * 1989-05-16 1990-11-29 Moen Asbjoern A plant for conductive electrical heating of steel blanks
US5234659A (en) * 1989-05-16 1993-08-10 Moen Asbjoern Plant for conductive electrical heating of steel blanks
FR2652028A1 (en) * 1989-09-21 1991-03-22 Stein Heurtey Device for turning steelworks products of square or rectangular cross-section through 90 DEG
EP0478860A1 (en) * 1989-09-21 1992-04-08 Stein Heurtey Device for turning iron and steel products of square or rectangular cross-section through 90o

Also Published As

Publication number Publication date
ZA844702B (en) 1985-02-27
DE3477603D1 (en) 1989-05-11
EP0133877B1 (en) 1989-04-05
EP0133877A3 (en) 1987-01-07
US4568278A (en) 1986-02-04
ES8505091A1 (en) 1985-04-16
DE3328814A1 (en) 1985-02-28
JPS6039116A (en) 1985-02-28
ES535028A0 (en) 1985-04-16
ATE41995T1 (en) 1989-04-15

Similar Documents

Publication Publication Date Title
DE3432284A1 (en) Rail transport system with a travelling carriage arranged at a distance from the storage plane
DE2525323A1 (en) MOUNTING PLATFORM
DE3702108C2 (en) Motor-driven device for moving workpieces
DE2512613C2 (en) Suction gripping device for gripping and handling a cuboid body
DE2502392C3 (en) Plant for the surface treatment of heavy metal slabs
DE2118523B2 (en) Device for bundling elongated material
DE2445085A1 (en) DEVICE FOR TRANSPORTING (MOVING) A PLATE-SHAPED PRODUCT FROM ONE STATION TO ANOTHER
DE2236188C3 (en) Conveyor
DE2926661A1 (en) RIFLE BAR OVEN
DE3047332A1 (en) AMMUNITION LIFTING DEVICE
DE2935624A1 (en) Warp beam inlay trolley
EP0133877A2 (en) Charging and discharging device for furnaces, particularly for tunnel furnaces with trucks and rotary furnaces
DE1652815C3 (en) Mobile forge manipulator
DE3903518A1 (en) Conveying device having conveying beams
DE1920799A1 (en) Foundry machine
DE1198287B (en) Device for turning and stacking rolling stock, in particular rolled profiles
DE3134097A1 (en) LIFTING BAR
DE2448545A1 (en) Transporting appts. for moving rods or wire bars transversely - has spaced transferring arms activated by differential cylinders
EP0357898B1 (en) Industrial furnace, in particular a chamber-type furnace for the heat treatment of metallic objects
DE2428897B2 (en) DEVICE FOR MANUFACTURING CERAMIC HOLLOW VESSELS IN THE CASTING PROCESS
DE3301434C2 (en) Furnace for heating slabs, billets or similar items to be heated
DE19623251C1 (en) Transfer appliance for blanks, especially bricks
DE2209901C3 (en) Device for loading plate presses
DE2751445A1 (en) DEVICE FOR COLLECTING EXTRUDED MATERIAL LENGTHS IN GROUPS
EP3295104B1 (en) Transfer device and conveyor device for transporting rods for long pasta, method for operating a transfer device or a conveyor, and pasta dryer

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE DE FR IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE DE FR IT

17P Request for examination filed

Effective date: 19870107

17Q First examination report despatched

Effective date: 19880418

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE FR IT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19890405

REF Corresponds to:

Ref document number: 41995

Country of ref document: AT

Date of ref document: 19890415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3477603

Country of ref document: DE

Date of ref document: 19890511

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19890713

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19890717

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19890726

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19890803

Year of fee payment: 6

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19900602

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19900630

BERE Be: lapsed

Owner name: RHEINER MASCHINENFABRIK WINDHOFF AKT.-GES.

Effective date: 19900630

Owner name: DIDIER ENGINEERING G.M.B.H.

Effective date: 19900630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19910228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19910301

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST