EP0599674B1 - Dispositif pour assurer l'introduction latérale de produits sidérurgiques dans un four - Google Patents

Dispositif pour assurer l'introduction latérale de produits sidérurgiques dans un four Download PDF

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Publication number
EP0599674B1
EP0599674B1 EP19930402642 EP93402642A EP0599674B1 EP 0599674 B1 EP0599674 B1 EP 0599674B1 EP 19930402642 EP19930402642 EP 19930402642 EP 93402642 A EP93402642 A EP 93402642A EP 0599674 B1 EP0599674 B1 EP 0599674B1
Authority
EP
European Patent Office
Prior art keywords
furnace
chute
product
oven
lateral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19930402642
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0599674A1 (fr
Inventor
Jean-Claude Audebert
Emmanuel Fleury
Jean-Louis Bigan
Jean-Claude Vacher
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.)
Fives Stein SA
Original Assignee
Stein Heurtey SA
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 Stein Heurtey SA filed Critical Stein Heurtey SA
Publication of EP0599674A1 publication Critical patent/EP0599674A1/fr
Application granted granted Critical
Publication of EP0599674B1 publication Critical patent/EP0599674B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
    • 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 specially adapted for 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
    • F27D3/0024—Charging; Discharging; Manipulation of charge of metallic workpieces
    • 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
    • F27D5/00—Supports, screens or the like for the charge within the furnace
    • 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 specially adapted for furnaces of these types
    • F27B9/38—Arrangements of devices for charging
    • F27B2009/386—Lateral intake or outtake
    • 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
    • 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
    • F27D2003/0042—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising roller trains
    • 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
    • F27D2003/0073—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities the charge floating on a liquid, e.g. water
    • 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
    • F27D3/12—Travelling or movable supports or containers for the charge
    • F27D2003/124—Sleds; Transport supports
    • 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
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
    • F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water
    • 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
    • F27D3/02—Skids or tracks for heavy objects
    • F27D3/022—Skids
    • F27D3/024—Details of skids, e.g. riders
    • 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
    • F27D3/04—Ram or pusher apparatus

Definitions

  • the present invention relates to a device intended to ensure the introduction of steel products such as, in particular, billets or the like into heat treatment furnaces.
  • the present invention therefore proposes to provide a device which does not have the drawbacks of the devices according to the prior art mentioned above and which allows lateral introduction into the main part of an oven of very long steel products or products having significant deformations. while offering the possibility of placing them in a precise location in the oven on the supports provided for the products inside the oven. Furthermore, the invention makes it possible to produce simple equipment, inexpensive and of reduced size with regard to the weight of the products to be put into the oven.
  • the present invention relates to a device intended to ensure the lateral introduction of products.
  • steel such as in particular billets, directly in the heating zone of an oven, in particular a reheating oven, to which said steel products are brought by means of handling of known type
  • this device comprises a chute on which the product is deposited by the handling means, before the lateral introduction into the oven, this chute serving as support for said product during the introduction into the oven and being provided for this purpose with displacement means to ensure its charging at the same time that the product it supports, means being further provided for ensuring the deposit of said product in the oven, from said chute.
  • the cross section of the chute has a shape which is chosen so that it has a face serving as a support for the product, said support face constituting a positioning reference during the removal of said product. in the oven.
  • means are provided for cooling said chute, for example by circulation of a cooling fluid, in particular water, the chute can then comprise chambers or circulation channels for the cooling fluid.
  • means are provided for guiding the chute during its movements outside the oven, then through the lateral opening of the latter, provided for charging and also inside the oven. , on the side members or on the sole of the latter.
  • the guide means outside the oven can be produced in the form of rollers provided with shoulders, on which the chute circulates before it is placed in the oven.
  • the guide means through the lateral charging opening can be produced in the form of guide rails positioned in said opening.
  • the guide of the chute inside the oven can be obtained by grooves made in the fixed hearth and by centering slides, optionally cooled, positioned at the junction between the elements of the fixed hearth and the mobile longitudinal members of the oven
  • the guide of the chute inside the furnace is ensured by slides which are welded to the beams.
  • the displacement of the chute according to an alternative longitudinal translational movement can be ensured by a pinion-rack system or by a winch mechanism with a drive cable on which said chute is coupled.
  • a movable stop is provided through the lateral charging opening, the installation in the chute, during the displacement thereof allows the product to be deposited on the hearth or on the rails of the oven .
  • the movable stop can be controlled by a jack, pneumatic or hydraulic, or it can be of the gravity return type. Its position is preferably variable in order to allow the steel product to be positioned in the furnace, for example as a function of its length.
  • Figure 1 is a sectional view through a vertical plane representing in particular the chute of the device according to the invention, outside the oven, before loading the product to be introduced laterally into the oven, this product being shown here in the form of a steel billet 10 whose section may be small compared to its length, and whose deformation may be significant.
  • the feeding of the billet 10 can be ensured by any known handling system, for example by a roller table 12.
  • the charging device comprises a chute designated as a whole by the reference 14.
  • This chute has a cross section whose shape is determined so that it serves to support the product 10 during its handling for its charging.
  • the chute 14 has a bearing face 14 'which constitutes the positioning reference for depositing the product in the oven.
  • this trough 14 of regular section serves as a support for the steel product 10 when it is introduced into the furnace as will be described below.
  • This chute is therefore provided with displacement means, which will be described below and its rigidity as well as its precise dimensions make it possible to ensure its precise guidance both outside and inside the oven in order to guarantee the precision of positioning of the product 10 regardless of its shape or deformation.
  • the chute 14 can be cooled by a circulation of a cooling fluid, for example water.
  • a cooling fluid for example water.
  • the chute has internal chambers or channels 16 and 16 'ensuring the circulation of the cooling fluid.
  • the billet 10, correctly positioned is pushed into the chute 14, from the roller table 12, by example using a pusher 18 or any other known means which deposits it in the chute.
  • Guidance means are therefore provided outside the oven, in the lateral charging opening and inside the oven.
  • Figures 2a and 2b show two embodiments of the means provided by the invention for guiding the chute 14 outside the oven.
  • the guide of the chute is obtained using rollers 20 provided with lateral shoulders 22, 22 ′ and, in the embodiment illustrated in FIG. 2b, the guidance of the chute moving on rollers such as 20 'is obtained using lateral rollers 24, 24'.
  • FIG. 3 there is shown an embodiment of the means provided by the invention for guiding the chute 14 during its passage through the charging opening provided in the wall P of the oven.
  • this guidance is obtained using parts in the form of slides such as 26 which are positioned in the wall P as seen in this FIG. 3.
  • FIG. 4 schematically represents the hearth of a furnace with refractory beams.
  • This sole comprises, in a known manner, fixed elements such as 28, 28 ′ between which are movable beams 30.
  • the guide of the chute 14 in such a furnace with refractory beams is ensured on the one hand using a groove such as 32 made in element 28 of the fixed sole and on the other hand, by pieces or centering slides such as 34 which are embedded in the elements 28 'of the fixed hearth, at the junction between the mobile side members 30 and these elements 28'.
  • Such centering pieces 34 may optionally include cooling means.
  • FIG. 5 the case of a furnace with tubular beams 36 has been illustrated.
  • the guide of the chute 14 inside the furnace is ensured by means of slides of suitable shape such as 38 , 38 'which are welded to the longitudinal members 36.
  • the chute 14 includes means which ensure its displacement for the purpose of charging the steel product 10 which it supports.
  • This displacement can be obtained using any conventional system, for example using a rack and pinion mechanism driven by an electric or hydraulic motor, by a hydraulic or pneumatic cylinder or, as shown in FIG. by way of nonlimiting exemplary embodiment, by a winch system 40 controlled by an electric geared motor group 42, and driving a cable 44 on which is mounted a connecting piece 46 coupled to the chute 14.
  • a winch system 40 controlled by an electric geared motor group 42, and driving a cable 44 on which is mounted a connecting piece 46 coupled to the chute 14.
  • Such a system allows 'Drive the chute 14 in an alternative longitudinal translational movement to bring the product 10 inside the oven F as will be described below.
  • the furnace F which, in this exemplary embodiment, is an oven with refractory beams which includes the means for guiding the chute 14 as described above with reference to FIGS. 3 and 4.
  • FIGS. 7a to 7c For the description of the operation of the device which is the subject of the invention, reference is now made to FIGS. 7a to 7c.
  • the chute 14 carrying the product 10 enters the oven F, through the charging opening formed in the wall P of the latter. This movement of the chute 14 is provided by the drive device, described above with reference to FIG. 6 and, during this displacement outside the oven, the chute 14 carrying the product 10 is guided here by lateral guide rollers 24, 24 'of the type described above, with reference to FIG. 2b.
  • the chute 14 carrying the billet 10 is guided during its passage through the lateral opening of the oven, then into the oven, after its lateral introduction, by the guide means described above with reference to FIGS. 3 to 5.
  • means are provided which make it possible to deposit the steel product such as 10 on the hearth S of the furnace or on the side members which the latter comprises.
  • these means are produced in the form of a movable stop 48 which can come to be positioned in the chute 14 as will be seen below.
  • This movable stop can be actuated by any conventional means, for example by a jack such as 50, pneumatic or hydraulic, as shown in Figures 7a to 7c, or it can be biased by gravity. Its position can be variable in order to allow positioning of the product such as 10 as a function of the length of the latter in the oven.
  • the stop 14 is in the high position as illustrated in FIG. 7a.
  • the movable stop 48 After positioning in the furnace F (FIG. 7b) of the chute 14 carrying the product 10, the movable stop 48 is brought to the low position so that it is positioned in the chute as seen in the figure. When the stop is in place, the means for moving the chute 14 are actuated so as to bring this chute outside the furnace as shown in FIG. 7c. During this backward movement of the chute 14, the product 10 is retained by the stop 48 in the low position and it is then gradually deposited on the sole S (or on the side members of the latter) in a precise position.
  • the chute After complete retraction of the chute 14, that is to say when the latter returns to its starting position as shown in FIG. 6, the chute is in the waiting position before receiving a new product 10 and the movable stop 48 is returned to the high position.
  • the longitudinal members of the oven can then freely execute their advance cycle. The movement of these beams is carried out in a conventional manner, the lifting stroke being simply increased in order to take account of the lower level of charging of the product resulting from the device which is the subject of the invention.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Tunnel Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
EP19930402642 1992-11-18 1993-10-27 Dispositif pour assurer l'introduction latérale de produits sidérurgiques dans un four Expired - Lifetime EP0599674B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9213864 1992-11-18
FR9213864A FR2698162B1 (fr) 1992-11-18 1992-11-18 Dispositif pour assurer l'introduction latérale de produits sidérurgiques dans un four.

Publications (2)

Publication Number Publication Date
EP0599674A1 EP0599674A1 (fr) 1994-06-01
EP0599674B1 true EP0599674B1 (fr) 1996-09-11

Family

ID=9435659

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930402642 Expired - Lifetime EP0599674B1 (fr) 1992-11-18 1993-10-27 Dispositif pour assurer l'introduction latérale de produits sidérurgiques dans un four

Country Status (6)

Country Link
EP (1) EP0599674B1 (enrdf_load_stackoverflow)
DE (2) DE599674T1 (enrdf_load_stackoverflow)
ES (1) ES2052485T3 (enrdf_load_stackoverflow)
FR (1) FR2698162B1 (enrdf_load_stackoverflow)
TR (1) TR27367A (enrdf_load_stackoverflow)
TW (1) TW239163B (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2752827B1 (fr) * 1996-09-04 1998-11-06 Ceric Convoyeur muni d'un dispositif de positionnement et de calage de produits transportes sur un convoyeur

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854863A (en) * 1974-01-23 1974-12-17 H Lubold Furnace assembly and method for heating workpieces
US4859178A (en) * 1988-08-15 1989-08-22 Seco/Warwick Corporation Ingot pusher furnace with means for reducing heat loss
FR2636548B1 (fr) * 1988-09-22 1994-04-29 Allevard Ind Sa Element formant marbre de refroidissement en materiau refractaire

Also Published As

Publication number Publication date
TW239163B (enrdf_load_stackoverflow) 1995-01-21
TR27367A (tr) 1995-01-17
EP0599674A1 (fr) 1994-06-01
FR2698162A1 (fr) 1994-05-20
ES2052485T3 (es) 1996-11-16
ES2052485T1 (es) 1994-07-16
DE69304663T2 (de) 1997-02-13
FR2698162B1 (fr) 1995-01-13
DE69304663D1 (de) 1996-10-17
DE599674T1 (de) 1994-12-08

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