CA2388582A1 - Method and device for introducing bulk material into a metallurgical vessel - Google Patents

Method and device for introducing bulk material into a metallurgical vessel Download PDF

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Publication number
CA2388582A1
CA2388582A1 CA 2388582 CA2388582A CA2388582A1 CA 2388582 A1 CA2388582 A1 CA 2388582A1 CA 2388582 CA2388582 CA 2388582 CA 2388582 A CA2388582 A CA 2388582A CA 2388582 A1 CA2388582 A1 CA 2388582A1
Authority
CA
Canada
Prior art keywords
bulk material
lid
material container
vessel
container
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.)
Abandoned
Application number
CA 2388582
Other languages
French (fr)
Inventor
Berndhard Espendiller
Dieter Kersten
Peter Meierling
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 Siemag AG
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2388582A1 publication Critical patent/CA2388582A1/en
Abandoned legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/527—Charging of the electric furnace
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/56—Manufacture of steel by other methods
    • C21C5/562—Manufacture of steel by other methods starting from scrap
    • 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
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/18—Arrangements of devices for charging
    • F27B3/183—Charging of arc furnaces vertically through the roof, e.g. in three points
    • 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
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/28—Arrangement of controlling, monitoring, alarm or the like devices
    • 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
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/12—Working chambers or casings; Supports therefor
    • 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
    • F27D2003/045—Ram or pusher apparatus used to pull the charge
    • 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
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0028—Regulation
    • F27D2019/0059—Regulation involving the control of the conveyor movement, e.g. speed or sequences
    • 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
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/0035—Devices for monitoring the weight of quantities added to the charge
    • F27D2021/0042—Monitoring the level of the solid charge
    • 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
    • F27D3/0025—Charging or loading melting furnaces with material in the solid state
    • F27D3/0031—Charging with tiltable dumpers
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention relates to a method for introducing bulk material into a metallurgical vessel, especially for introducing scrap into an arc furnace, which has at least one centrally situated electrode in an upper vessel part that is gas-tightly sealed by a lid. The bulk material is transported to the head of the metallurgical vessel in individual bulk material containers. The opening part of the bulk material container is connected to coupling parts of the lid. The bulk material is conveyed out of the container by conveying parts connected to the bulk material containers and introduced into the metallurgical vessel by access openings in the lid. In the case of a device that is suitable for carrying out this method, at least one ring-shaped part (16) of the lid (15) is rotationally connected to a lid drive system (51) in the lid plane. The rotating lid part (16) has at least one feed opening, through which the bulk material can be conveyed into the upper vessel part (11). The feed openings (16) are covered by coupling parts (31) which have a sealable wall (32). A bulk material container (41) which can be filled with bulk material can be coupled with the coupling part (31). The bulk material container (41) is connected to a conveying unit (42, 43, 44) by which means the bulk material can be conveyed into the metallurgical vessel (11) through the lid part (16), through the feed opening (17).

Description

Method and Device for Introducing Bulk Material into a Metallurgical Vessel The invention relates to a method for introducing bulk material into a metallurgical vessel, in particular, scrap metal into an electric arc furnace which has at least one centrally arranged electrode in an upper vessel part closed gas-tightly by a lid, and relative to a corresponding device.
Metallurgical vessels are conventionally filled batch-wise; for example, electric arc furnaces are usually charged by means of scrap metal baskets.
From EP 0 646 652 B1 a steel mill installation with closed, tiltable electric arc furnace is known which has a charging device with at least two storage containers. These storage containers, arranged on both sides of the electrode support arm, are fastened on the bay platform. The storage containers have a bottom which can be removed during the charging process. A cgntinuous charging of the furnace vessel is not possible with these containers.
From DE 197 53 184 A1 a melting furnace installation for melting metals is known in which, coaxially to the main axis of the furnace, a central pipe is provided in which at least one electrode is arranged and wherein a container can be placed onto the furnace end. A charge is intermediately stored within this container above the upper furnace vessel which is closed by the lid and, by opening the furnace lid, the charge drops into the interior of the furnace.
In this known device a continuous charging of the furnaces is also not possible.
DE 44 07 861 C1 discloses a charging device for electric arc furnaces in which an annular chamber is arranged on the furnace cover wherein a drive device is arranged in the annular chamber on which switchable load magnets are suspended. At least one material feed device extends laterally into the furnace vessel, wherein load magnets fastened on the drive device are provided on the material feed device which enable a magnetic take-up of the charge material and drop thereof at any desired location within the furnace. The material feed device to the furnace is realized by endless conveyor belts. This does not represent a batch operation by means of independent bulk material containers.
It is an object of the invention to provide a method and a device for introducing bulk material into a metallurgical vessel which conveys with simple, constructive means the bulk material batchwise in an operationally safe way to the furnace end and enables a continuous charging of the bulk material into the upper vessel part.
The invention solves this object by the features of method claim 1 and of the device claim 4.
According to the invention, independent bulk material units, for example, chutes known in steel mills as they are used for the converter operation, are employed for the conveying action to the metallurgical vessel.
The lid which closes the upper vessel part of the metallurgical vessel is rotatably embodied and has at least one opening. In the area of the opening, a docking device is provided which is to be connected to the bulk material container filled with scrap metal.
The bulk material is conveyed out of the container by simultaneous rotation of the lid. With this method, any point of the batch contained within the upper vessel part can be reached within an annular area of depth.
Conveying of the bulk material out of the bulk material container is controlled, either by pushing by means of a slide, by transport via a conveyor belt, or by tilting the entire container. The use of independent chutes increases the operational safety and reduces the requirements imposed on the scrap yard. Moreover, when one conveying container fails during its use on the furnace end, its function can be taken over by another container. In this connection, another container can be introduced into the charging area in place of the one that failed. Possible errors on the container, in particular, in regard to the drive of the conveying device can then be serviced in a separate maintenance area.
In addition to a slide which is driven electrically or by a fluid motor, it is also possible to use conveying devices in the form of conveying belts as well as vibrating conveyors driven in any suitable way.
In an advantageous embodiment, the bulk material container is deposited on a holding device which effects a change of the bulk material angle in the vertical and optionally in the horizontal position. With this tilting and/or pivoting unit the bulk material container can be adjusted such that even areas in the upper furnace part which are difficult to access can be filled with bulk material. In this connection, the bulk material container itself is of a surprisingly simple configuration.
In a special configuration, a measuring and control device for detecting the filling level in the furnace end is provided wherein by means of a computing device a control of the lid rotation as well as of the removal speed of the conveying device is realized.
The bulk material containers are deposited on docking devices which by means of matching sealing strips, ensure an environmentally friendly charging of the metallurgical vessel. In an advantageous further embodiment of the invention, this sealing device is supported to be springy.
According to the invention, the individual bulk material containers can be docked in any suitable position on the lid.
According to a first embodiment, the bulk material container is positioned diagonally on the circular lid wherein the bulk material container does not project past the lid rim during charging.
In a second embodiment only the noses of the bulk material containers extend to the lid while a large portion of the container surface projects past the lid rim. In this configuration, significantly mare than only one container can be docked on the furnace end. In this connection, it is beneficial to have at least two docking units because in this way an uninterrupted continuous charging is possible.
In a further advantageous configuration it is provided that at least three bulk material containers are to be docked on the furnace end, wherein the individual containers are guided on a line which is guided tangentially to the centerline of the feed openings. In this way, the individual containers project hardly past the lid rim and still allow a continuous filling of the metallurgical vessel, even when one bulk material container breaks down.
One embodiment of the invention is illustrated in the attached drawings. It is shown in a schematic illustration in Fig. 1 a furnace vessel with a bulk material container arranged on the rotatable lids Fig. 2 a furnace with two outwardly projecting bulk material containers Fig. 3 an electric arc furnace with a docking station;
Figs. 4a-~c plan views onto the furnace vessel with the arrangement of the bulk material containers, at a - reduced scale. -Figs. 1 through 3 show metallurgical vessels, respectively, here in the form of electric arc furnaces with a bottom vessel part 12 and an upper vessel part covered by lid 15. The lid 15 or an annular lid part 16 is rotatably supported by means of rollers 19 on the mouth of the upper vessel part 11 and is driven by a rotary lid drive 51.

In Figs. 1 and 2 a sleeve 13 is provided concentrically to the upper vessel part 11 in which an electrode 21 is arranged.
In Fig. 1, the electrode is in a sleeve 13 which can be closed in direction toward the mouth of the upper vessel part 11 wherein the electrode 21 is connected by means of an electrode holder 22 on a support arm 23 which is connected with a support column 24 that is vertically movable by means of an electrode drive 57. The sleeve 13 is fastened by means of a sleeve holder 14 on the upper vessel part 11.
An annular lid part 16 is rotatably supported on lid bearings 19 on the mouth of the sleeve 13 as well as on the mouth of the upper vessel part 11. The lid part 16 has a feed opening 17. In this area a docking station 31 is provided with a closeable wall 32, embodied as a flap in this embodiment.
On the docking station 31 a bulk material container 41 can be docked. In order to prevent dust-containing gas from exiting, a sealing strip 34 is provided on the docking station 31 for sealing relative to the container 41.
On the bulk material container 41 a motor 52 is arranged on the exterior which cooperates with a drive rod 45 connected to a slide 42. The bulk material can be moved with this slide 42 in a predetermined way in the direction to the mouth of the bulk material container 41 and can be conveyed continuously into the charging space 18 of the upper vessel part 11.

In Fig. 2, the electrode is secured on the mouth of the sleeve 13, facing the bottom vessel part 12, by means of an electrode holder 22.
The annular charging space 18 is closed at its opening by an annular lid part 16. The annular lid part 16 is rotatable by means of the hid bearing 19 and can be driven by the rotary drive 51 .
Feed openings 17 are provided in the annular lid part 16. In the right part the feed opening 17 is covered by a docking part 31 which has a closeable wall (louver 32).
The bulk material container 41 is deposited in a tilting conveying device 44 which tilts by means of a tilting drive 53 the bulk material container 41 or pivots the bulk material container relative to the horizontal alignment by means of the pivot drive 56.
In the case of tilting as well as pivoting, the closeable wall 32 has shaped elements 33 which ensure a gas-tight sealing between the docking part 31 and the forward part of the bulk material container 41.
On the left side, the bulk material container 41-has a transport conveying device 43 in the bottom area which can be driven by a conveyor belt motor 54. The lower run of the conveyor belt is arranged outside of the bulk material container 41 which is configured as a chute in this case.

The transport conveying device 43 communicates by means of a measuring and control unit 62 with the filling level measuring device 61 provided in the upper vessel part 11.
Moreover, the bulk material container 41 in the present case is covered by a cover hood 47. The cover hood 47 projects with a size corresponding to the feed opening l7~of the annular lid part 16 past the nose of the bulk material container 41.
In the configuration of the bulk material container 41 illustrated here the docking station is configured as a simple feed opening 17 which can be closed by a lid 35.
In Fig. 2 both bulk material containers 41 project significantly past the lid part 16. The support required in this connection within the steel mill bay is not illustrated.
In Fig. 3, the electrode 21 is fastened by means of a holder 22 on the support arm 23 which is vertically drivable by a drive 57.
In the electric arc furnace illustrated here, the complete lid 15 is supported on the lid bearing 19 and driven by~the drive 51. In the right upper part, the front view of a docking station 31 is illustrated which by means of an adjustable wall 32, here in the form of a louver, is movable by a drive 55.
Fig. 3 illustrates clearly that the docking station 31 has a certain height so that the docking station 31 and the possibly docked bulk material container 41 can be guided underneath the support arm 23 without being hindered.

In Figs. 4a to 4c plan views onto the lid 15 are illustrated. In this connection, Fig. 4a) shows a bulk material container 41 which is guided transversely across the lid 15 and is docked on the docking station 31 above the optionally arranged sleeve 13.
In Fig. 4b) two docking stations 31, each with one bulk material container 41, are illustrated.' In the right part of Fig. 4b) it is illustrated that the bulk material container not only can be moved in and out and, in this way, can be docked on the docking station 31, but it can also be pivoted and tilted.
In Fig. 4c) the individual bulk material containers 41 are connected to the docking stations 31 such that the bulk material containers 41 are arranged centrally on a straight line G wherein the straight line G extends tangentially to a centerline which is guided through the feed openings 17.

List of Elements metallurgical furnace vessel 11 upper vessel part 12 bottom vessel part 13 sleeve 14 sleeve holder lid 16 annular lid part 17 feed opening 18 charging space 19 lid bearing/rollers Electric Parts 21 electrode 22 electrode holder 23 support arm 24 support column Docking 31 docking station 32 closeable wall/louver 33 shaped element 34 - sealing strip 35 feed opening of the lid Conveying 41 bulk material container 42 sliding conveying device/slide 43 transport conveying unit 44 tilting conveying unit 45 drive rod 46 tilting and/or pivoting unit 47 cover hood M centerline G straight line Drive 51 rotary lid drive 52 slide drive - bulk material container, motor 53 tilting drive - bulk material container 54 conveyor belt - bulk material container, motor 55 louver motor 56 pivot drive - bulk material container 57 electrode drive Filling Level 61 filling level measuring device 62 measuring and control unit

Claims (15)

Claims
1. Method for introducing bulk material into a metallurgical vessel (10), in particular, scrap metal into an electric arc furnace which has at least one centrally arranged electrode (21) in an upper vessel part (11) closed gas-tightly by a lid (15), wherein the bulk material is transported in individual bulk material containers (41) having mouth parts to the end of the metallurgical vessel (10) and the mouth part of the bulk material container is connected to docking parts (31) of the lid (15), characterized in that by means of conveying units (42, 43, 44) connected to the bulk material containers, which move the bulk material in the direction mouth part of the bulk material container (41), the bulk material is moved out of the bulk material container; and that the bulk material is introduced via feed openings (17) in the lid (15), covered by means of the docking parts (31), into the metallurgical vessel (10) by simultaneous rotation of at least one annular part (16) of the lid (15).
2. Method according to claim 1, characterized in that the bulk material is pushed out of the bulk material container.
3. Method according to claim 1, characterized in that the bulk material angle of the bulk material conveyed into the metallurgical vessel is predetermined by control of the position of the bulk material container.
4. Device for introducing bulk material into a metallurgical vessel (10), in particular, of scrap metal into an electric arc furnace, which has at least one centrally arranged electrode (21) in an upper vessel part (11) closed by a lid (15), wherein a bulk material container (41) fillable with bulk material can be docked on a docking part (31), for performing the method according to claim 1, characterized in that at least one annular part (16) of the lid (15) is connected to a lid drive (51) so as to be rotatably in the plane of the lid, in that the rotatable lid part (16) has at least one feed opening (17) through which the bulk material can be conveyed into the upper vessel part (11), in that the feed openings (17) is covered by the docking parts (31) comprising a closeable wall (32), in that the bulk material container (41) is connected to a conveying device (42, 43, 44) by which the bulk material can be conveyed via the feed opening (17) through the lid part (16) into the metallurgical upper vessel part (11).
5. Device according to claim 4, characterized in that the conveying unit has a slide unit (43) having a cross-sectional shape matching that of the bulk material container (41) and being driven by means of the drive rod (45) via a slide motor (52).
6. Device according to claim 5, characterized in that the slide drive (52) is an electric motor or a fluid-driven motor.
7. Device according to claim 6, characterized in that the slide drive (52) is fastened on the bulk material container (41).
8. Device according to claim 4, characterized in that the end face of the bulk material container (41) has a shape which corresponds to that of the closeable wall (32) of the docking part (31).
9. Device according to claim 8, characterized in that the docking part (31) has a shaped element (33) which allows a predeterminable horizontal and/or vertical position of the docked bulk material container (41).
10. Device according to at least one of the aforementioned claims 4 to 9, characterized in that on the lid part (16) a tilting and/or pivoting unit (46) is provided with which the bulk material container (41) can be horizontally and vertically moved.
11. Device according to one of the preceding claims 4 to 10, characterized in that the wall of the docking part (31) and/or the end face of the bulk material container (41) has sealing strips (34).
12. Device according to claim 11, characterized in that the sealing strip (34) is supported in a springy way.
13. Device according to claim 4, characterized in that the conveying unit (42, 43, 44) is in communication by means of a measuring, and control unit (62) with a filling level measuring device (61) provided in the upper vessel part (11).
14. Device according to claim 4, characterized in that the metallurgical vessel is an electric arc furnace which has an annular charging space (18) as a result of a sleeve (13) concentrically arranged relative to the jacket of the upper furnace vessel (11), wherein in the shadow area of the charging space (18) the annular lid part (16) is configured to be rotatable about the sleeve.
15. Device according to claim 14, characterized in that the annular lid part (10) has at least two feed openings (17) and in that the bulk material container (41) can be positioned and again removed along a straight line (G) tangentially extending to a line which is guided through the center (M) of the feed openings (17).
CA 2388582 1999-09-22 2000-09-21 Method and device for introducing bulk material into a metallurgical vessel Abandoned CA2388582A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19945489A DE19945489A1 (en) 1999-09-22 1999-09-22 Method and device for introducing bulk material into a metallurgical vessel
DE19945489.2 1999-09-22
PCT/EP2000/009248 WO2001021843A1 (en) 1999-09-22 2000-09-21 Method and device for introducing bulk material into a metallurgical vessel

Publications (1)

Publication Number Publication Date
CA2388582A1 true CA2388582A1 (en) 2001-03-29

Family

ID=7922951

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2388582 Abandoned CA2388582A1 (en) 1999-09-22 2000-09-21 Method and device for introducing bulk material into a metallurgical vessel

Country Status (15)

Country Link
EP (1) EP1222315A1 (en)
JP (1) JP2003510458A (en)
KR (1) KR20020035874A (en)
CN (1) CN1376208A (en)
AU (1) AU7420900A (en)
BR (1) BR0014224A (en)
CA (1) CA2388582A1 (en)
DE (1) DE19945489A1 (en)
EA (1) EA003353B1 (en)
HU (1) HUP0202808A2 (en)
MX (1) MXPA02003073A (en)
RO (1) RO121037B1 (en)
TR (1) TR200200750T2 (en)
WO (1) WO2001021843A1 (en)
ZA (1) ZA200203151B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8391331B2 (en) 2003-07-23 2013-03-05 Outotec Oyj Method of charging fine-grained metals into an electric-arc furnace

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Publication number Priority date Publication date Assignee Title
DE102006044837A1 (en) 2006-09-22 2008-04-03 Siemens Ag Device for controlling an electric arc furnace
DE102010045825A1 (en) * 2010-09-20 2012-03-22 Intracon Gmbh Charging shaft system and filling method
DE102013214775B3 (en) * 2013-07-29 2014-11-20 Siemens Vai Metals Technologies Gmbh Device for loading a metallurgical melting vessel with scrap
ES2962819T3 (en) * 2020-08-20 2024-03-21 Abp Induction Systems Gmbh Contaminated scrap recycling facility

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DE1010545B (en) * 1953-11-28 1957-06-19 Dingler Werke Ag Loading device for low shaft ovens
DE1232177B (en) * 1964-07-04 1967-01-12 Demag Ag Feeding device for metal smelting or other industrial furnaces, in particular for feeding scrap to steel-making furnaces
DE1758842C3 (en) * 1968-08-17 1980-01-24 Erich Ing.(Grad.) 4300 Essen Vetter Loading device, in particular for closed electric furnaces
FR2498309B1 (en) * 1981-01-20 1986-04-11 Clesid Sa ELECTRIC OVEN FOR SCRAP MELTING AND CONTINUOUSLY SUPPLIED
AT398486B (en) * 1992-12-09 1994-12-27 Voest Alpine Ind Anlagen STEELWORKS ELECTRIC OVEN
DE4332913A1 (en) * 1993-09-23 1995-03-30 Mannesmann Ag Steelworks facility with closed tiltable arc furnace
DE4407861C1 (en) * 1994-03-04 1995-06-14 Mannesmann Ag Arc oven loading device
JP2861794B2 (en) * 1994-03-18 1999-02-24 日本鋼管株式会社 Melting furnace with raw material preheating tank
DE19753184A1 (en) * 1997-11-21 1999-06-10 Mannesmann Ag Melting furnace plant
DE19755890A1 (en) * 1997-12-05 1999-06-17 Mannesmann Ag Feeding device for shaft furnaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8391331B2 (en) 2003-07-23 2013-03-05 Outotec Oyj Method of charging fine-grained metals into an electric-arc furnace

Also Published As

Publication number Publication date
TR200200750T2 (en) 2002-09-23
BR0014224A (en) 2002-05-21
JP2003510458A (en) 2003-03-18
EA003353B1 (en) 2003-04-24
EP1222315A1 (en) 2002-07-17
MXPA02003073A (en) 2002-10-31
HUP0202808A2 (en) 2002-12-28
ZA200203151B (en) 2003-01-29
AU7420900A (en) 2001-04-24
RO121037B1 (en) 2006-11-30
DE19945489A1 (en) 2001-04-05
EA200200394A1 (en) 2002-10-31
CN1376208A (en) 2002-10-23
WO2001021843A1 (en) 2001-03-29
KR20020035874A (en) 2002-05-15

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