EP0133877B1 - Dispositif de chargement et de déchargement de fours à passage continu à chariots et de fours à sole tournante - Google Patents

Dispositif de chargement et de déchargement de fours à passage continu à chariots et de fours à sole tournante Download PDF

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Publication number
EP0133877B1
EP0133877B1 EP84106325A EP84106325A EP0133877B1 EP 0133877 B1 EP0133877 B1 EP 0133877B1 EP 84106325 A EP84106325 A EP 84106325A EP 84106325 A EP84106325 A EP 84106325A EP 0133877 B1 EP0133877 B1 EP 0133877B1
Authority
EP
European Patent Office
Prior art keywords
furnaces
charging
hearth
supporting arm
furnace
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
Application number
EP84106325A
Other languages
German (de)
English (en)
Other versions
EP0133877A2 (fr
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/de
Publication of EP0133877A2 publication Critical patent/EP0133877A2/fr
Publication of EP0133877A3 publication Critical patent/EP0133877A3/de
Application granted granted Critical
Publication of EP0133877B1 publication Critical patent/EP0133877B1/fr
Expired legal-status Critical Current

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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 ovens according to the preamble of the main claim.
  • Such a charging or decharging device is known from DE-PS 869 974.
  • the material to be heated is deposited or lifted off by the rotary movement of trough-shaped levers on the stove.
  • the levers are carried by reciprocating tappets, which are only supported on one side and therefore inclined positions of the heating material in relation to the stove benches cannot be ruled out.
  • the stove benches can be damaged.
  • the object of the present invention is to ensure a smooth placement and lifting of the heating material on the stove or the ceramic stove benches, neither displacement movements between the heating material and the storage surface occurring, nor high surface pressures due to inclined or tilted heating material being dispensed.
  • Fig. 1, 1 generally denotes a device for heating billets, slabs or the like, which consists of an actual furnace 2 through which the bogie wagon, not shown, is pushed in the direction of the arrow.
  • the bogie wagons, not shown, are loaded by a charging device 3 and unloaded again at the end of the furnace by a decharging device 4.
  • the bogie wagons After leaving the furnace 2, the bogie wagons arrive on a transverse transfer platform 5, with the aid of which they are moved transversely to their previous direction of travel and reach a return track 6.
  • This return track 6 transports the hearth trolleys in the opposite direction to the direction of travel through the furnace to a transverse transfer platform 7, which moves the hearth carriages to the entrance of the furnace 2. There the cycle begins anew 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.
  • a support arm 11 is arranged on a track 10 which is oriented transversely to the furnace longitudinal axis above the furnace 2 and is mounted in a manner known per se on and on the track 10 so as to be 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 can detect lying billets or the like by swiveling movement.
  • the height adjustability of the support arm 11 is such that when the tines 15 are pivoted up and the support arm 11 is lowered, the lowest points of the tines 15 are located above the benches 17 of the hearth trolley and that when the prongs 15 are pivoted down but the support arm 11 is raised, the lowest points of the prongs 15 are also above the benches 17 of the bogie 18 are arranged. In these positions, the charging or decharging device can be moved without problems.
  • a charging process is as follows:
  • the support arm 11 moves out of the furnace 2 in the lowered position over the roller table 8 until the tines 15 are above a pre-positioned heat good 9.
  • the distances between the individual rollers of the roller table 9 are dimensioned such that the tines can be pivoted between these rollers.
  • the material to be heated 9 is gripped and then moved into the furnace 2.
  • 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.
  • the entire charging machine 3 can move laterally out of the oven 2 while the bogie wagon 18 continues to clock by one division. Then the cycle begins again.
  • the newly introduced pieces are attached to the warm material 9 already deposited from the outside. Because this is not done by tongs, only a small distance between the individual pieces of the heating material is required.
  • the oven is decharged in 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 here the pieces of the heat material 9 to be removed are removed from the outside and not a great distance here either between the individual pieces is necessary.
  • 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.
  • the use of a rotary hearth furnace is conceivable, 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 - such as described above - immerse and swing out.
  • the forces to turn the tube 12 and to pivot the tines 15 are relatively 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 simple movements to be carried out, the short distances 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)

Claims (3)

1. Dispositif de chargement et de déchargement de fours de réchauffage, notamment de fours à passage continu à chariots et de fours à sole tournante avec un bras porteur déplaçable longitudinalement, sur lequel bras porteur sont disposées des fourches de levage montées pivotantes qui sont constituées par un tube et par des fourchons, avec par ailleurs dans des bancs en matière céramique des gorges associées aux fourchons pour la préhension du produit chaud, caractérisé en ce que le bras porteur (11) est, en plus, déplaçable en direction verticale et est sensiblement constitué en forme d'U, alors que le tube (12) est monté libre en rotation sur les extrémités libres des deux branches de l'U.
2. Dispositif selon la revendication 1, caractérisé par une voie de roulage (10) conduisant le bras porteur (11) dans un four (2) perpendiculairement à la direction de marche du chariot (18) ou d'une sole tournante, avec possibilité de déplacement dans le sens de la sortie et de l'entrée.
3. Dispositif selon la revendication 1 ou 2, caractérisé par un profilage de la face supérieure des bancs (17) adapté au produit chaud (9) et s'étendant transversalement à la direction de marche du chariot (18) ou de la sole tournante.
EP84106325A 1983-08-10 1984-06-02 Dispositif de chargement et de déchargement de fours à passage continu à chariots et de fours à sole tournante Expired EP0133877B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84106325T ATE41995T1 (de) 1983-08-10 1984-06-02 Chargier- und dechargiereinrichtung fuer waermoefen, insbesondere herdwagen-durchschuboefen und drehherdoefen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3328814A DE3328814A1 (de) 1983-08-10 1983-08-10 Chargier- und dechargiereinrichtung fuer waermoefen, insbesondere herdwagen-durchschuboefen und drehherdoefen
DE3328814 1983-08-10

Publications (3)

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

Family

ID=6206198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84106325A Expired EP0133877B1 (fr) 1983-08-10 1984-06-02 Dispositif de chargement et de déchargement de fours à passage continu à chariots et de fours à sole tournante

Country Status (7)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO170250C (no) * 1989-05-16 1992-09-23 Asbjoern Moen Anlegg for elektrisk konduktiv oppvarming av emner av staal
FR2652028B1 (fr) * 1989-09-21 1991-10-31 Stein Heurtey Dispositif pour assurer le retournement a 90degre de produits siderurgiques de section carree ou rectangulaire.

Family Cites Families (9)

* 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
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
DE869974C (de) * 1951-07-20 1953-03-09 Ofu Ofenbau Union G M B H Gleichzeitig als Beschickungs- und Entnahmevorrichtung dienende Einrichtung fuer Gluehoefen
DE1920804A1 (de) * 1969-04-24 1970-11-12 Waldrich Gmbh H A Vorrichtung zum selbsttaetigen Walzenwechsel an Walzenschleifmaschinen od.dgl.
DE1927618B1 (de) * 1969-05-30 1970-10-08 Ignis Huettenbau Ag Vorrichtung zum Ziehen von Bl¦cken und Knüppeln verschiedener Längen aus Industrie¦fen, insbesondere Drehherd¦fen
DE2113148A1 (de) * 1971-03-18 1972-09-21 Reinhard Haase Einzangen- bzw. Mehrzangen-Beschickungsmaschine fuer Drehherd-OEfen
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

Also Published As

Publication number Publication date
JPS6039116A (ja) 1985-02-28
ES8505091A1 (es) 1985-04-16
ES535028A0 (es) 1985-04-16
EP0133877A2 (fr) 1985-03-13
ATE41995T1 (de) 1989-04-15
EP0133877A3 (en) 1987-01-07
US4568278A (en) 1986-02-04
DE3328814A1 (de) 1985-02-28
ZA844702B (en) 1985-02-27
DE3477603D1 (en) 1989-05-11

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