EP0208860A1 - Preheating installation for blocks - Google Patents

Preheating installation for blocks Download PDF

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Publication number
EP0208860A1
EP0208860A1 EP86106384A EP86106384A EP0208860A1 EP 0208860 A1 EP0208860 A1 EP 0208860A1 EP 86106384 A EP86106384 A EP 86106384A EP 86106384 A EP86106384 A EP 86106384A EP 0208860 A1 EP0208860 A1 EP 0208860A1
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EP
European Patent Office
Prior art keywords
blocks
storage table
heating system
block
heat treatment
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
EP86106384A
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German (de)
French (fr)
Other versions
EP0208860B1 (en
Inventor
Edgar Stengel
Renate Klaerner
Ernst Stangl
Hans-Juergen Model
Herbert Fuchs
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.)
SMS Elotherm GmbH
Original Assignee
AEG Elotherm 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 AEG Elotherm GmbH filed Critical AEG Elotherm GmbH
Priority to AT86106384T priority Critical patent/ATE41703T1/en
Publication of EP0208860A1 publication Critical patent/EP0208860A1/en
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Publication of EP0208860B1 publication Critical patent/EP0208860B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • 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
    • F27B9/20—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 substantially straight path tunnel furnace
    • F27B9/201—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 substantially straight path tunnel furnace walking beam furnace
    • F27B9/202—Conveyor mechanisms therefor
    • F27B9/207—Conveyor mechanisms therefor consisting of two or more conveyors
    • 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
    • F27D2003/0001—Positioning the charge
    • F27D2003/0002—Positioning the charge involving positioning devices, e.g. buffers, buffer zones
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2001/00—Composition, conformation or state of the charge
    • F27M2001/15—Composition, conformation or state of the charge characterised by the form of the articles
    • F27M2001/1539—Metallic articles
    • F27M2001/1547—Elongated articles, e.g. beams, rails
    • F27M2001/1552—Billets, slabs

Definitions

  • the invention relates to a heating system for blocks, comprising a particularly inductively operated heat treatment zone, a transport device running through the heat treatment zone and consisting of lifting and fixed beams, with which the blocks forming a row can be transported step by step, and a feed device arranged upstream of the transport device, especially a slide or roller table.
  • the invention has for its object to provide a heating system for blocks, which makes it possible in a simple manner to hold or bring the blocks to be transported in series through the heating zone to a face distance.
  • This object is achieved in that between the transport device and the feed device a moving table in and against the transport direction is arranged for at least two blocks abutting one another in the transport direction at the end from which the blocks can be lifted with the walking beam, and that the drives for the return stroke of the storage table and the conveying step of the walking beam are coordinated such that the return stroke takes place before the conveying step.
  • the feed device has a passage lock.
  • This can consist of a pawl and clamping means with which the block can be held behind the block held by the pawl.
  • its release should be coordinated with the return stroke and the conveying step in such a way that the return stroke takes place with an effective flow block.
  • the drive of the storage table preferably moves it forward during the conveying step of the walking beams.
  • the storage table In order to prevent the blocks from sticking to one another in the case of inductive heating, the storage table should partially extend into the heating zone extend. In this way, taking advantage of the magnetizability of the blocks, which decreases with increasing heating, it is also possible to carry out the end separation in the area of the heating zone.
  • the end-face welding of the blocks conveyed one behind the other by the heating section is avoided by simple means.
  • at least a distance between the blocks corresponding to the regression is created.
  • the desired distance between the individual blocks is created solely by the movable storage table arranged in the area of the walking beams and arranged upstream of the fixed beams.
  • the blocks A, B which are to be heat-treated in an inductively operated heat treatment zone consisting of three sections W 1, W 2, W 3 are on an inclined roller table 1 in the waiting position. They are held by a pawl 2 and a clamping device 3 such that after release of the pawl 2 by means of a drive 2 ', the block A runs down the roller table 1, while the block B is held by the clamping device 3. Only when the pawl 2 is again in the position shown in the drawing, the clamp 3 is released by its drive 3 ', so that the block B can assume the position of the block A.
  • the block A then arrives at a storage table 4 and its end face abuts a block already resting on the storage table 4.
  • the storage table 4 is swinging suspended on two carriers 4 'and can perform a forward and backward movement by the distance a by means of a drive 4 ".
  • the walking beams 6 are arranged on a supporting frame 6 ', which can be lifted by a lifting device 7 and moved back and forth by a displacement device 8.
  • the movement cycle is symbolized in the drawing by the four arrows H1, V1, H2, V2.
  • the storage table 4 moves back by the path a to the roller table 1. In this way, an end-side distance of the amount a is created between the blocks A i + n and the following block A i + n-1 .
  • the block A i + n remains on the fixed beam 5 because it mainly rests on the fixed beam 5.
  • the walking beams 6 are raised (movement in the direction of arrow H 1) and carry out a conveying step V 1.
  • all blocks on the fixed beams and the block A i + n are moved by the distance V 1 while maintaining the mutual distance.
  • the walking beam 6 are lowered (movement in the direction of arrow H2) and perform a backward step V2 in the position shown in the drawing.
  • the storage table 4 is brought into the position shown in the drawing. After lowering the walking beam and preferably already during the backward step V2 the pawl 2 is released so that the next block A can roll on the storage tables 4. In doing so, it abuts the front block A i + n-2 ' , shifts it further forward on the table 4 and even comes to rest on the storage table 4. The process described is then repeated.
  • step V1 is equal to the length of the blocks of the same size plus the distance a, each subsequent block comes to lie at the location of the previous block. However, this condition is not necessary for creating a mutual distance between the blocks. If this condition is not met, e.g. with steps a of the same size, the blocks of different lengths are transported, then it can happen that in the next step the first block on the storage table cannot be taken away by the walking beams 6, because the degree of overlap with the walking beams 6 is still too small. In this case, an empty step is carried out. By pushing the following block, the block that has not been taken along, however, gets further onto the storage table, so that it is detected in the next step. In any case, it is guaranteed that at least the distance a arises between the individual blocks. If the storage table extends into the heating zone and thus overlaps with the walking beam 6, the storage table replaces the fixed beams otherwise provided in this area.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Reciprocating Conveyors (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Structure Of Telephone Exchanges (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Road Signs Or Road Markings (AREA)

Abstract

1. Heating installation for ingots, consisting of an especially inductively operated heat treatment zone, a transport device running through the heat treatment zone and consisting of walking beams and fixed beams, with which the ingots, which form a row, may be transported stepwise, and a feeding device, especially a slide or a roller table, located before the transport device, characterized in that there is arranged between the transport device (5, 6) and the feeding device (1, 2, 3) a finish table (4) for at least two ingots (Ai+n-1 , Ai+n-2 ) abutting in the direction of transport, which finish table moves in and opposite to the direction of transport and from which the ingots (Ai+n-1 ) may be lifted by means of the walking beam (6), and in that the drives (4", 7, 8) for the return stroke of the finish table (4) and the conveying step of the walking beams (6) are coordinated in such a way that the return stroke takes place before the conveying step.

Description

Die Erfindung bezieht sich auf eine Erwärmungsanlage für Blöcke, bestehend aus einer insbesondere induktiv betriebenen Wärmebehandlungszone, einer durch die Wärmebehandlungszone verlaufenden, aus Hub- und Festbalken bestehenden Transportvorrichtung, mit der die eine Reihe bildenden Blöcke schrittweise transportierbar sind, und einer der Transportvorrichtung vorgeordneten Zuführvorrichtung, insbesondere einer Rutsche oder einem Rollgang.The invention relates to a heating system for blocks, comprising a particularly inductively operated heat treatment zone, a transport device running through the heat treatment zone and consisting of lifting and fixed beams, with which the blocks forming a row can be transported step by step, and a feed device arranged upstream of the transport device, especially a slide or roller table.

Beim Transport von Blöcken durch die Erwärmungszone kommt es immer wieder vor, daß die stirnseitig aneinanderstoßenden Blöcke der Blockreihe aus verschiedenen Gründen "aneinanderkleben". Wird unter diesen Verhältnissen die Erwärmung durchgeführt, kann es zum stirnseitigen Verschweißen kommen. Das stirnseitige Aneinanderstoßen von Blöcken kommt deshalb vor, weil es nicht möglich ist, die von der Zuführvorrichtung, insbesondere einer Rutsche oder einem geneigten Rollgang auf die aus Fest- und Hubbalken bestehende Transportvorrichtung gegebenen Blöcke kontrolliert auf diese Transportvorrichtung zu übergeben. Hinzu kommt, daß bei induktiv erwärmten Blöcken Magnetkraft die Blöcke stirnseitig aneinanderhält.When transporting blocks through the heating zone, it happens again and again that the blocks of the block row abutting one another on the end face "stick" for various reasons. If the heating is carried out under these conditions, welding at the end can occur. The frontal collision of blocks occurs because it is not possible for the blocks given by the feed device, in particular a slide or an inclined roller table onto the transport device consisting of fixed and walking beams handed over to this transport device in a controlled manner. In addition, in the case of inductively heated blocks, magnetic force holds the blocks together at the end.

Der Erfindung liegt die Aufgabe zugrunde, eine Erwärmungsanlage für Blöcke zu schaffen, die es auf einfache Art und Weise ermöglicht, die in Reihe durch die Erwärmungszone zu transportierenden Blöcke auf stirnseitige Distanz zu halten bzw. zu bringen.The invention has for its object to provide a heating system for blocks, which makes it possible in a simple manner to hold or bring the blocks to be transported in series through the heating zone to a face distance.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß zwischen der Transportvorrichtung und der Zuführvorrichtung ein in und entgegen der Transportrichtung sich bewegender Ablagetisch für mindestens zwei in Transportrichtung stirnseitig aneinanderstoßende Blöcke angeordnet ist von dem die Blöcke mit den Hubbalken abhebbar sind, und daß die Antriebe für den Rückhub des Ablagetisches und den Förderschritt der Hubbalken derart koordiniert sind, daß der Rückhub vor dem Förderschritt erfolgt.This object is achieved in that between the transport device and the feed device a moving table in and against the transport direction is arranged for at least two blocks abutting one another in the transport direction at the end from which the blocks can be lifted with the walking beam, and that the drives for the return stroke of the storage table and the conveying step of the walking beam are coordinated such that the return stroke takes place before the conveying step.

Nach einer ersten Ausgestaltung weist die Zuführvorrichtung eine Durchlaufsperre auf. Diese kann aus einer Klinke und Klemmitteln bestehen, mit denen der Block hinter dem von der Klinke gehaltenen Block festgehalten werden kann. Im Falle einer Durchlaufsperre sollte deren Freigabe mit dem Rückhub und dem Förderschritt derart koordiniert sein, daß der Rückhub bei wirksamer Durchlaufsperre erfolgt.According to a first embodiment, the feed device has a passage lock. This can consist of a pawl and clamping means with which the block can be held behind the block held by the pawl. In the case of a run block, its release should be coordinated with the return stroke and the conveying step in such a way that the return stroke takes place with an effective flow block.

Vorzugsweise bewegt der Antrieb des Ablagetisches diesen während des Förderschritts der Hubbalken vor.The drive of the storage table preferably moves it forward during the conveying step of the walking beams.

Um bei induktiver Erwärmung ein stirnseitiges "Aneinanderkleben" der Blöcke auszuschließen, sollte der Ablagetisch sich teilweise bis in die Erwärmungszone hinein erstrecken. Auf diese Art und Weise ist es unter Ausnutzung der mit zunehmender Erwärmung abnehmenden Magnetisierbarkeit der Blöcke möglich, auch noch im Bereich der Erwärmungszone die stirnseitige Trennung vorzunehmen.In order to prevent the blocks from sticking to one another in the case of inductive heating, the storage table should partially extend into the heating zone extend. In this way, taking advantage of the magnetizability of the blocks, which decreases with increasing heating, it is also possible to carry out the end separation in the area of the heating zone.

Bei der Erfindung wird mit einfachen Mitteln das stirnseitige Verschweißen der hintereinander durch die Erwärmungsstrecke geförderten Blöcke vermieden. In jedem Fall wird mindestens ein dem Rückschritt entsprechender Abstand zwischen den Blöcken geschaffen. Allein durch den im Bereich der Hubbalken angeordneten und den Festbalken vorgeordneten beweglichen Ablagetisch wird die gewünschte Distanz zwischen den einzelnen Blöcken geschaffen.In the invention, the end-face welding of the blocks conveyed one behind the other by the heating section is avoided by simple means. In any case, at least a distance between the blocks corresponding to the regression is created. The desired distance between the individual blocks is created solely by the movable storage table arranged in the area of the walking beams and arranged upstream of the fixed beams.

Im folgenden wird die Erfindung anhand einer ein Ausführungsbeispiel schematisch darstellenden Zeichnung näher erläutert.The invention is explained in more detail below with reference to a drawing schematically illustrating an exemplary embodiment.

Die in einer aus drei Abschnitten bestehenden induktiv betriebenen Wärmebehandlungszone W₁,W₂,W₃ wärmezubehandelnden Blöcke A,B befinden sich auf einem geneigten Rollgang 1 in Warteposition. Sie werden von einer Klinke 2 und einer Klemmvorrichtung 3 derart gehalten, daß nach Freigabe der Klinke 2 mittels eines Antriebes 2' der Block A den Rollgang 1 herunterläuft, während der Block B durch die Klemmvorrichtung 3 festgehalten wird. Erst wenn die Klinke 2 wieder in der in der Zeichnung dargestellten Position sich befindet, wird die Klemme 3 durch ihren Antrieb 3' gelöst, so daß der Block B die Position des Blockes A einnehmen kann.The blocks A, B which are to be heat-treated in an inductively operated heat treatment zone consisting of three sections W 1, W 2, W 3 are on an inclined roller table 1 in the waiting position. They are held by a pawl 2 and a clamping device 3 such that after release of the pawl 2 by means of a drive 2 ', the block A runs down the roller table 1, while the block B is held by the clamping device 3. Only when the pawl 2 is again in the position shown in the drawing, the clamp 3 is released by its drive 3 ', so that the block B can assume the position of the block A.

Der Block A gelangt dann auf einen Ablagetisch 4 und stößt mit seiner Stirnseite gegen einen bereits auf dem Ablagetisch 4 ruhenden Block. Der Ablagetisch 4 ist pendelnd an zwei Trägern 4' aufgehängt und kann mittels eines Antriebes 4" eine Vor- und Rückbewegung um die Strecke a ausführen.The block A then arrives at a storage table 4 and its end face abuts a block already resting on the storage table 4. The storage table 4 is swinging suspended on two carriers 4 'and can perform a forward and backward movement by the distance a by means of a drive 4 ".

An den Ablagetisch 4 schließen sich die Festbalken 5 einer Transportvorrichtung an, zu der auch Hubbalken 6 gehören. Die Hubbalken 6 sind auf einem Tragrahmen 6' angeordnet, der durch eine Hubvorrichtung 7 hebbar und durch eine Verschiebeeinrichtung 8 hin- und herbewegbar ist. Der Bewegungszyklus wird in der Zeichnung durch die vier Pfeile H₁,V₁,H₂,V₂ symbolisiert.The fixed beams 5 of a transport device, to which lifting beams 6 also belong, adjoin the storage table 4. The walking beams 6 are arranged on a supporting frame 6 ', which can be lifted by a lifting device 7 and moved back and forth by a displacement device 8. The movement cycle is symbolized in the drawing by the four arrows H₁, V₁, H₂, V₂.

Die Bewegung des Ablagetisches 4 und der Hubbalken 6 sowie der Klinke 2 sind koordiniert, damit zwischen den einzelnen Blöcken ein stirnseitiger Abstand a geschaffen werden kann. Dies geschieht auf folgende Art und Weise:The movement of the storage table 4 and the walking beam 6 and the pawl 2 are coordinated so that an end-to-end distance a can be created between the individual blocks. This is done in the following way:

Ausgehend von den in der Zeichnung dargestellten Positionen der Blöcke bewegt sich bei abgesenkten Hubbalken 6 der Ablagetisch 4 um den Weg a bis anden Rollgang 1 zurück. Auf diese Art und Weise wird zwischen den Block Ai+n und dem folgenden Block Ai+n-1 ein stirnseitiger Abstand des Betrages a geschaffen. Der Block Ai+n bleibt auf dem Festbalken 5 liegen, weil er überwiegend auf dem Festbalken 5 ruht. Anschließend werden die Hubbalken 6 angehoben (Bewegung in Richtung des Pfeils H₁) und führen einen Förderschritt V₁ aus. Bei diesem Förderschritt werden sämtliche Blöcke auf den Festbalken und der Block Ai+n um die Strecke V₁ unter Aufrechterhaltung des gegenseitigen Abstands bewegt. Danach werden die Hubbalken 6 abgesenkt (Bewegung in Richtung des Pfeils H₂) und führen einen Rückschritt V₂ in die in der Zeichnung dargestellte Position aus.Starting from the positions of the blocks shown in the drawing, when the lifting beam 6 is lowered, the storage table 4 moves back by the path a to the roller table 1. In this way, an end-side distance of the amount a is created between the blocks A i + n and the following block A i + n-1 . The block A i + n remains on the fixed beam 5 because it mainly rests on the fixed beam 5. Then the walking beams 6 are raised (movement in the direction of arrow H 1) and carry out a conveying step V 1. In this funding step, all blocks on the fixed beams and the block A i + n are moved by the distance V 1 while maintaining the mutual distance. Then the walking beam 6 are lowered (movement in the direction of arrow H₂) and perform a backward step V₂ in the position shown in the drawing.

Der Ablagetisch 4 wird in die in der Zeichnung dargestellte Position gebracht. Nach dem Absenken der Hubbalken und vorzugsweise schon während des Rückschrittes V₂ wird die Klinke 2 gelöst, so daß der nächste Block A auf den Ablagetische 4 rollen kann. Dabei stößt er stirnseitig gegen den vorderen Block Ai+n-2', verschiebt diesen auf den Tisch 4 weiter nach vorne und kommt selbst auf dem Ablagetisch 4 zum Aufliegen. Es wiederholt sich dann der beschriebene Vorgang.The storage table 4 is brought into the position shown in the drawing. After lowering the walking beam and preferably already during the backward step V₂ the pawl 2 is released so that the next block A can roll on the storage tables 4. In doing so, it abuts the front block A i + n-2 ' , shifts it further forward on the table 4 and even comes to rest on the storage table 4. The process described is then repeated.

Sofern der Rückschritt V₁ gleich der Länge der gleich großen Blöcke plus dem Abstand a ist, kommt jeder nachfolgende Block an der Stelle des vorhergehenden Blocks zu liegen. Notwendig für die Schaffung eines gegenseitigen Abstandes zwischen den Blöcken ist diese Bedingung aber nicht. Wird diese Bedingung nicht erfüllt, indem z.B. bei gleich größen Schritten a die Blöcke unterschiedlicher Länge transportiert werden, dann kann es passieren, daß beim nächsten Schritt der erste Block auf dem Ablagetisch nicht von den Hubbalken 6 mitgenommen werden kann, weil der Überlappungsgrad mit den Hubbalken 6 noch zu gering ist. In diesem Fall wird ein Leerschritt ausgeführt. Durch das Nachschieben des folgenden Blockes gelangt der nicht mitgenommene Block aber weiter auf den Ablagetisch, so daß er beim nächsten Schritt erfaßt wird. In jedem Fall ist also gewährleistet, daß zwischen den einzelnen Blöcken mindestens der Abstand a entsteht. Sofern sich der Ablagetisch bis in die Erwärmungszone hinein erstreckt und damit mit den Hubbalken 6 überlappt, ersetzt der Ablagetisch in deisem Bereich die sonst hier vorgesehenen Festbalken.If the step V₁ is equal to the length of the blocks of the same size plus the distance a, each subsequent block comes to lie at the location of the previous block. However, this condition is not necessary for creating a mutual distance between the blocks. If this condition is not met, e.g. with steps a of the same size, the blocks of different lengths are transported, then it can happen that in the next step the first block on the storage table cannot be taken away by the walking beams 6, because the degree of overlap with the walking beams 6 is still too small. In this case, an empty step is carried out. By pushing the following block, the block that has not been taken along, however, gets further onto the storage table, so that it is detected in the next step. In any case, it is guaranteed that at least the distance a arises between the individual blocks. If the storage table extends into the heating zone and thus overlaps with the walking beam 6, the storage table replaces the fixed beams otherwise provided in this area.

Claims (5)

1. Erwärmungsanlage für Blöcke, bestehend aus einer insbesondere induktiv betriebenen Wärmebehandlungszone, einer durch die Wärmebehandlungszone verlaufenden, aus Hub- und Festbalken bestehenden Transportvorrichtung, mit der die eine Reihe bildenden Blöcke schrittweise transportierbar sind, und einer der Transportvorrichtung vorgeordneten Zuführvorrichtung, insbesondere einer Rutsche oder einem Rollgang,
dadurch gekennzeichnet, daß
zwischen der Transportvorrichtung (5,6) und der Zuführvorrichtung (1,2,3) ein im und entgegen der Transportrichtung sich bewegender Ablagetisch (4) für mindestens zwei in Transportrichtung aneinanderstoßende Blöcke (Ai+n-1,Ai+n-2) angeordnet ist, von dem die Blöcke (Ai+n-1) mit den Hubbalken (6) abhebbar sind, und daß die Antriebe (4",7,8) für den Rückhub des Ablagetisches (4) und den Förderschritt der Hubbalken (6) derart koordiniert sind, daß der Rückhub vor dem Förderschritt erfolgt.1.Heating system for blocks, consisting of a particularly inductively operated heat treatment zone, a transport device running through the heat treatment zone and consisting of lifting and fixed beams, with which the blocks forming a row can be transported step by step, and a feed device upstream of the transport device, in particular a slide or a roller table,
characterized in that
Between the transport device (5, 6) and the feed device (1, 2, 3), a storage table (4) moving in and against the transport direction for at least two blocks (A i + n-1 , A i + n- 2 ) is arranged, from which the blocks (A i + n-1 ) with the lifting beam (6) can be lifted, and that the drives (4 ", 7,8) for the return stroke of the storage table (4) and the conveying step of Walking beams (6) are coordinated in such a way that the return stroke takes place before the conveying step. 2. Erwärmungsanlage nach Anspruch 1,
dadurch gekennzeichnet, daß
die Zuführvorrichtung (2,3) als Durchlaufsperre für die Blöcke (A) ausgebildet ist, wobei der Rückhub des Ablagetisches (4) nur bei wirksamer Durchlaufsperre (2,3) erfolgt.2. Heating system according to claim 1,
characterized in that
the feed device (2, 3) is designed as a passage lock for the blocks (A), the return stroke of the storage table (4) taking place only with an effective passage lock (2, 3). 3. Erwärmungsanlage nach Anspruch 2,
dadurch gekennzeichnet, daß
die Durchlaufsperre aus einer Klinke (2) und Klemmitteln (3) besteht, mit denen der Block (B) hinter dem von der Klinke (2) gehaltenen Block (A) festgehalten werden kann.3. Heating system according to claim 2,
characterized in that
the passage lock consists of a pawl (2) and clamping means (3) with which the block (B) can be held behind the block (A) held by the pawl (2). 4. Erwärmungsanlage nach einem der Ansprüche 2 bis 3,
dadurch gekennzeichnet, daß
der Antrieb (4') des Ablagetisches (4) diesen während des Förderhubes (V₁) der Hubbalken (6) vorbewegt.4. Heating system according to one of claims 2 to 3,
characterized in that
the drive (4 ') of the storage table (4) moves it forward during the conveying stroke (V 1) of the walking beam (6). 5. Erwärmungsanlage nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß
bei induktiv betriebener Wärmebehandlungszone der Ablagetisch (4) sich teilweise bis in die Erwärmungszone (W₁) hinein erstreckt.5. Heating system according to one of claims 1 to 4,
characterized in that
in the case of an inductively operated heat treatment zone, the storage table (4) extends partially into the heating zone (W 1).
EP86106384A 1985-06-19 1986-05-10 Preheating installation for blocks Expired EP0208860B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86106384T ATE41703T1 (en) 1985-06-19 1986-05-10 HEATING SYSTEM FOR BLOCKS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853521786 DE3521786A1 (en) 1985-06-19 1985-06-19 METHOD AND PLANT FOR HEATING BLOCKS IN A CONTINUOUS
DE3521786 1985-06-19

Publications (2)

Publication Number Publication Date
EP0208860A1 true EP0208860A1 (en) 1987-01-21
EP0208860B1 EP0208860B1 (en) 1989-03-22

Family

ID=6273551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86106384A Expired EP0208860B1 (en) 1985-06-19 1986-05-10 Preheating installation for blocks

Country Status (3)

Country Link
EP (1) EP0208860B1 (en)
AT (1) ATE41703T1 (en)
DE (2) DE3521786A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243223B (en) * 1965-12-23 1967-06-29 Koppers Wistra Ofenbau Gmbh Discharge device for heat treatment furnaces
DE2540985A1 (en) * 1975-09-13 1977-03-17 Einzinger Union Werke Ag Seesaw separator for bottle crates on track - has beam brake synchronised with seesaw acting against crate top

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3502234A (en) * 1968-06-07 1970-03-24 Westinghouse Electric Corp System for controlling the entry and exit of workpieces into and from a heating furnace
DE2835240C2 (en) * 1978-08-11 1984-12-20 Klöckner-Werke AG, 4100 Duisburg Lifting hearth furnace

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243223B (en) * 1965-12-23 1967-06-29 Koppers Wistra Ofenbau Gmbh Discharge device for heat treatment furnaces
DE2540985A1 (en) * 1975-09-13 1977-03-17 Einzinger Union Werke Ag Seesaw separator for bottle crates on track - has beam brake synchronised with seesaw acting against crate top

Also Published As

Publication number Publication date
EP0208860B1 (en) 1989-03-22
DE3662560D1 (en) 1989-04-27
DE3521786A1 (en) 1987-01-02
DE3521786C2 (en) 1987-11-05
ATE41703T1 (en) 1989-04-15

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