EP3274641B1 - Dispositif de remplissage contrôlé d'un orifice de coulée... - Google Patents

Dispositif de remplissage contrôlé d'un orifice de coulée... Download PDF

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Publication number
EP3274641B1
EP3274641B1 EP16711562.5A EP16711562A EP3274641B1 EP 3274641 B1 EP3274641 B1 EP 3274641B1 EP 16711562 A EP16711562 A EP 16711562A EP 3274641 B1 EP3274641 B1 EP 3274641B1
Authority
EP
European Patent Office
Prior art keywords
filling
opening
tapping
monitored
telescopic pipe
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.)
Active
Application number
EP16711562.5A
Other languages
German (de)
English (en)
Other versions
EP3274641A1 (fr
Inventor
Alexander Müller
Domenico Nardacchione
Christian Roser
Michael Schmid
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.)
Primetals Technologies Austria GmbH
Original Assignee
Primetals Technologies Austria 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
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Publication of EP3274641A1 publication Critical patent/EP3274641A1/fr
Application granted granted Critical
Publication of EP3274641B1 publication Critical patent/EP3274641B1/fr
Active 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
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • 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
    • F27B3/19—Arrangements of devices for discharging
    • 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
    • F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces heated electrically, with or without any other source of heat
    • F27B3/085—Arc furnaces
    • 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
    • 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
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • F27D3/1536—Devices for plugging tap holes, e.g. plugs stoppers

Definitions

  • the invention relates to a device for the controlled filling of a taphole, which is provided in a metallurgical furnace, with a refractory mass comprising a filling pipe having a lower opening and an upper opening, a container for the filling compound and a closure device, wherein the upper opening with interposition the closure device is connected to the container in such a way that the connection can be opened and closed by the closure device under the control of a control device, so that filler material falls through the fill tube by opening the closure device.
  • Metallurgical furnaces such.
  • electric arc furnaces are known in the art for a long time.
  • Such an electric arc furnace has a furnace vessel with a lid. Electrodes held by electrode holding arms and retractable and extendable into the oven vessel by opening in the lid are energized to form an arc.
  • feedstock such as scrap is melted to form a bath of molten steel.
  • the furnace vessel has a bottom with a refractory lining in which the bath is made of liquid steel.
  • the tapping opening is mounted in the bottom of the furnace vessel in such a way that, after the furnace vessel has returned to the starting position, the remaining sump is no longer above the tapping opening, so that it can be closed with a refractory filling compound before the next melting process.
  • To close the tapping opening is preferably a free-flowing Mass used (size and density similar to fine gravel). This is poured loose into the tap hole.
  • the tapping opening expands with the number of tapping operations, so that the amount of filling compound must be continuously increased. At the latest, if the wall of the taphole is too thin, the wall of the taphole must be replaced. The correct filling of the tap opening must be visually checked and confirmed by the operator.
  • the object of the invention is to provide a device for filling a tap opening, which solves the above problems.
  • a device according to claim 1 for the controlled filling of a tapping opening which is provided in a metallurgical furnace, with a refractory mass comprising a filling pipe with a lower opening and an upper opening, a container for the filling compound and a closure device wherein the upper opening is connected to the container with the interposition of the closure device so that the connection through the closure device under the control of a control device can be opened and closed, so that by opening the closure device filling compound falls through the filling pipe, and wherein the Verhellrohr as a telescopic tube is trained.
  • the telescopic tube descends to above the tapping opening into a working position. After filling, the telescopic tube is moved to a parking position. That is, the telescopic tube is not protected in the parking position of the hot gases through the tap hole and the associated chimney effect. This increases the service life of the filling pipe. Due to the intermediate circuit can flow through the upper opening, if necessary, free-flowing refractory filling compound under the action of gravity through the telescopic tube. The filling of the tap hole takes less time by the invention to complete. In addition, the invention provides a compact design for backfilling.
  • the telescopic tube is not limited to a round cross-section.
  • Another advantage is that at risk of overfilling the tap hole, the telescopic tube can be retracted quickly, so that the filling material does not fall out of the tap hole and thus can not accumulate in the tap hole and overfill it.
  • the telescopic tube preferably comprises at least a first partial section and at least one second telescopic partial section.
  • the telescopic tube preferably comprises at least a first partial section and at least one second telescopic partial section.
  • several, preferably coaxially in each case lying subsections may be possible.
  • Each of the inner sections can be pulled out of the next largest, which immediately envelops him.
  • the subsections are preferably designed as partial tubes.
  • the first section comprises the upper opening and the second section the lower opening, wherein the upper opening is connected to the container with the interposition of the closure device.
  • the second partial section preferably at least partially encloses the first partial section.
  • the second section can completely encase the first section.
  • the telescopic tube comprises a detection system, in particular an optical camera.
  • the telescopic tube comprises at least a first section with the upper opening and at least one second section with the lower opening, wherein the detection system is arranged in the region of the lower opening of the second section.
  • the detection system can be mounted directly next to the lower opening to a cultivation.
  • the detection system can also be arranged on a pivoting device.
  • a goal-oriented filling can be accomplished.
  • the visual control e.g. whether sufficient filling mass has been used and the tapping opening is sufficiently dense, be accomplished.
  • a main amount of filling compound can be introduced into the tapping opening.
  • a smaller amount of backfill mass can be poured back for filling. Of course, this can be repeated any number of times.
  • the telescopic tube is at least partially disposed on a manipulator.
  • the telescopic tube may include at least a first portion with the upper opening and at least a second portion with the lower opening, wherein the manipulator is at least partially disposed on the second portion.
  • the manipulator is designed as a transport carriage.
  • the transport carriage comprises a chain drive and an electric motor, e.g. a geared motor or a hydraulic motor.
  • the movement is via chain drive and electric motor, e.g. a gear motor or a hydraulic motor.
  • the transport carriage is therefore moved by means of a chain drive from the parking position to the working position.
  • the telescopic tube moves up on a transport slide to make the connection, from the opening in the lid of the arc furnace above the tap opening to the container above the lid.
  • the chain drive may be a worm drive.
  • the telescopic tube is tilted relative to the vertical.
  • the telescopic tube is tiltable by a tilting device relative to the vertical.
  • the telescopic tube can not travel vertically upwards but at an angle relative to the vertical, obliquely upward, in order to protect both the telescopic tube and the detection system.
  • the telescopic tube and the detection system is protected from heat radiation and exiting exhaust gases.
  • an exhaust pipe is provided on the telescopic tube to prevent the influx of exhaust gas into the container.
  • the telescopic tube comprises at least a first section with the upper opening and at least one second section with the lower opening, wherein the exhaust pipe is provided in the region of the lower opening to prevent the flow of exhaust gas into the container.
  • the filling material in the container is protected from hot exhaust gases.
  • the telescopic tube in the direction of the tapping opening on a heat shield. This is in particular provided between the tapping opening or the metallurgical furnace bottom and the optical camera in order to protect the optical camera from hot gases or heat as well as exhaust gases when filling the tapping opening.
  • a manual start of the backfilling is initially provided, wherein the telescopic tube is extendable with a transport slide over the tap hole in a working position and wherein the tap hole is filled with filling material, and wherein the filling material in the tap hole with a detection system is optically controllable, and wherein the Telescope tube is then retractable into a parking position.
  • Fig. 1 shows a filling tube designed as a telescopic tube. for controllably filling a tapping opening (not shown) provided in a metallurgical furnace (not shown) with a refractory mass from a container (not shown) for the filling mass.
  • the telescopic tube comprises a first section 1 with an upper opening 10 and a second section 2 with a lower opening 11.
  • the second section 2 is extendable.
  • the upper opening 10 is connected to the container with the interposition of a closure device (not shown) so that the connection through the closure device is openable and closable under the control of a control device (not shown), so that filling material is released through opening of the closure device Telescopic tube falls.
  • the closure device may comprise a hydraulic, pneumatic, electrical or piezoelectric slider for opening and closing the connection between telescopic tube and container. This slider is controlled by the controller.
  • the container is open at the top so that it is easily refillable.
  • FIG. 2 shows a second side view of the filling pipe according to the invention.
  • an optical camera 7 is arranged in the region of the lower opening 11 (FIG. FIG. 1 ) of the second section 2.
  • a heat shield 4 is arranged between the optical camera 7 and the tap opening.
  • the camera 7 and the telescopic tube is protected from heat and exhaust gases.
  • the sections 1.2 are formed as refractory clad pipes.
  • the second section 2 is held by a manipulator which is designed as a transport slide 5.
  • a manipulator allows a physical interaction with the environment.
  • the movement takes place via a chain drive chain 9 and an electric motor 6, such as a geared motor or a hydraulic motor.
  • the sand filling can be started manually.
  • the transport carriage 5 is moved by means of the chain drive from a parking position to a working position on the tap hole.
  • the second section 2 is pulled out.
  • the connection is made from the opening in the lid of the arc furnace over the tap hole to the container above the lid.
  • the lower opening 11 ( FIG. 1 ) is therefore in a position in which the filling material falling through the telescopic tube falls into the tapping opening.
  • the closure device (not shown) to the container for the filling compound can be opened (optionally this is already open and in the container filling material is poured for filling) and the sand filling for the taphole can begin.
  • the correct filling of the tapping opening can now be checked with the optical camera 7.
  • the telescopic tube is raised to a parking position.
  • the camera 7 may be provided on a pivotable pivoting device (not shown).
  • the telescopic tube is opposite a vertical 12 ( FIG. 1 ) by an angle ⁇ ( FIG. 1 ) tilted.
  • the telescopic tube does not travel vertically upwards, but at an angle ⁇ (FIG. FIG. 1 ) aslant;
  • ⁇ FIG. 1
  • the telescopic tube and the camera 7 are protected from heat radiation and exiting exhaust gases.
  • an exhaust pipe 3 is provided to prevent an influx of exhaust gas into the container.
  • the invention enables a simple and controlled filling of the tap opening. Overfilling can be avoided according to the invention. In addition, the invention increases the life of the filling pipe according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Claims (15)

  1. Dispositif destiné au remplissage contrôlé d'un orifice de coulée, prévu au sein d'un four métallurgique, avec une masse résistante au feu entourant un conduit de remplissage muni d'un orifice inférieur (11) et d'un orifice supérieur (10), un réservoir pour la masse de remplissage et un dispositif de fermeture, dans lequel l'orifice supérieur (10), lorsqu'il y a interposition du dispositif de fermeture, est raccordé au réservoir de sorte que le raccordement peut être ouvert et fermé grâce au dispositif de fermeture avec commande par un dispositif de commande, de sorte que la masse de remplissage tombe à travers le conduit de remplissage du fait de l'ouverture du dispositif de fermeture,
    caractérisé en ce que le conduit de remplissage est conçu en tant que conduit télescopique, dans lequel le conduit télescopique est agencé au moins partiellement au niveau d'un chariot de transport, le conduit télescopique comprend au moins une première sous-section (1) munie de l'orifice supérieur (10) et au moins une deuxième sous-section (2) munie de l'orifice inférieur et le chariot de transport est agencé au moins partiellement au niveau de la deuxième sous-section (2) .
  2. Dispositif destiné au remplissage contrôlé d'un orifice de coulée selon la revendication 1,
    caractérisé ce que le conduit télescopique comprend au moins une première sous-section (1) et au moins une deuxième sous-section (2) extensible.
  3. Dispositif destiné au remplissage contrôlé d'un orifice de coulée selon la revendication 2,
    caractérisé en ce que la première sous-section (1) comprend l'orifice supérieur (10) et la deuxième sous-section (2) comprend l'orifice inférieur (11), dans lequel l'orifice supérieur (10) est relié au réservoir lorsqu'il y a interposition du dispositif de fermeture.
  4. Dispositif destiné au remplissage contrôlé d'un orifice de coulée selon la revendication 2 ou 3,
    caractérisé en ce que la deuxième sous-section (2) enveloppe au moins partiellement la première sous-section (1).
  5. Dispositif destiné au remplissage contrôlé d'un orifice de coulée selon l'une quelconque des revendications précédentes,
    caractérisé en ce que le conduit télescopique comprend un système de détection, en particulier une caméra optique (7).
  6. Dispositif destiné au remplissage contrôlé d'un orifice de coulée selon l'une quelconque des revendications 1 à 4 ci-dessus,
    caractérisé en ce qu'un système de détection, en particulier une caméra optique (7), est prévu pour détecter le remplissage par de la masse de remplissage.
  7. Dispositif destiné au remplissage contrôlé d'un orifice de coulée selon la revendication 5 ou 6 ci-dessus,
    caractérisé en ce que le système de détection est prévu au niveau d'un dispositif orientable pouvant être orienté.
  8. Dispositif destiné au remplissage contrôlé d'un orifice de coulée selon l'une quelconque des revendications 5 à 7 ci-dessus,
    caractérisé en ce que le conduit télescopique comprend au moins une première sous-section (1) munie de l'orifice supérieur (10) et au moins une deuxième sous-section (2) munie de l'orifice inférieur (11) et le système de détection est agencé dans le secteur de l'orifice inférieur (11) de la deuxième sous-section (2).
  9. Dispositif destiné au remplissage contrôlé d'un orifice de coulée selon la revendication 1,
    caractérisé en ce que le chariot de transport (5) présente un entraînement par chaîne et un moteur électrique (6), en particulier un moteur à engrenage ou un moteur hydraulique.
  10. Dispositif destiné au remplissage contrôlé d'un orifice de coulée selon l'une quelconque des revendications précédentes,
    caractérisé en ce que le conduit télescopique est incliné par rapport à une verticale (12).
  11. Dispositif destiné au remplissage contrôlé d'un orifice de coulée selon l'une quelconque des revendications 1 à 10 ci-dessus,
    caractérisé en ce que le conduit télescopique peut être incliné par rapport à une verticale (12) grâce à un dispositif d'inclinaison.
  12. Dispositif destiné au remplissage contrôlé d'un orifice de coulée selon l'une quelconque des revendications précédentes,
    caractérisé en ce qu'un conduit d'échappement (3) est prévu au niveau du conduit télescopique afin d'empêcher un afflux de gaz d'échappement dans le réservoir.
  13. Dispositif destiné au remplissage contrôlé d'un orifice de coulée selon la revendication 12,
    caractérisé en ce que le conduit télescopique comprend au moins une première sous-section (1) munie de l'orifice supérieur (10) et au moins une deuxième sous-section (2) munie de l'orifice inférieur (11) et le conduit d'échappement (3) est prévu dans le secteur de l'orifice inférieur (11) afin d'empêcher l'afflux de gaz d'échappement dans le réservoir.
  14. Dispositif destiné au remplissage contrôlé d'un orifice de coulée selon l'une quelconque des revendications précédentes,
    caractérisé en ce que le conduit télescopique présente un bouclier thermique (4) vers l'orifice de coulée.
  15. Dispositif destiné au remplissage contrôlé d'un orifice de coulée selon l'une quelconque des revendications précédentes,
    caractérisé en ce qu'un démarrage manuel du remplissage est initialement prévu, dans lequel le conduit télescopique peut être déployé dans une position de travail avec un chariot de transport (5) sur l'orifice de coulée et dans lequel l'orifice de coulée peut être rempli avec une masse de remplissage, et dans lequel la masse de remplissage peut être contrôlée de manière optique par un système de détection dans le secteur de l'orifice de coulée et dans lequel le conduit télescopique peut être ensuite rétracté dans une position de rangement.
EP16711562.5A 2015-03-25 2016-03-15 Dispositif de remplissage contrôlé d'un orifice de coulée... Active EP3274641B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202015002221.9U DE202015002221U1 (de) 2015-03-25 2015-03-25 Vorrichtung zum kontrollierten Verfüllen einer Abstichöffnung
PCT/EP2016/055559 WO2016150765A1 (fr) 2015-03-25 2016-03-15 Dispositif de remplissage contrôlé d'un orifice de coulée...

Publications (2)

Publication Number Publication Date
EP3274641A1 EP3274641A1 (fr) 2018-01-31
EP3274641B1 true EP3274641B1 (fr) 2019-02-20

Family

ID=53045893

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16711562.5A Active EP3274641B1 (fr) 2015-03-25 2016-03-15 Dispositif de remplissage contrôlé d'un orifice de coulée...

Country Status (6)

Country Link
EP (1) EP3274641B1 (fr)
CN (1) CN208042794U (fr)
DE (1) DE202015002221U1 (fr)
RU (1) RU183114U1 (fr)
TR (1) TR201904145T4 (fr)
WO (1) WO2016150765A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU569600A1 (ru) * 1975-12-04 1977-08-25 Предприятие П/Я А-3244 Устройство дл закрыти летки конвертера
SU812831A1 (ru) * 1979-03-19 1981-03-15 Липецкое Отделение Государственногоордена Трудового Красного Знаменисоюзного Института По Проектированиюагрегатов Сталеплавильного Ипрокатного Производства Длячерной Металлургии Устройство дл предотвращени пОпАдАНи шлАКА из KOHBEPTOPAB СТАлЕРАзлиВОчНый КОВш
GB0002895D0 (en) * 2000-02-08 2000-03-29 Goricon Metallurg Services Improvements relating to plug members for steel furnaces
WO2011009579A1 (fr) * 2009-07-20 2011-01-27 Fuchs Technology Holding Ag Dispositif d’étanchéification et de remplissage d’un four métallurgique, four métallurgique et procédé de percée d’un four métallurgique
RU2415950C1 (ru) * 2009-11-02 2011-04-10 Общество с ограниченной ответственностью ПКФ "Металлургкомплектснаб" (ООО ПКФ "Металлургкомплектснаб") Стопор для отсечки первичного конвертерного шлака, аппликатор для посадки стопора в летку конвертера, система отсечки первичного конвертерного шлака, способ отсечки первичного конвертерного шлака
CN202155494U (zh) * 2011-07-18 2012-03-07 永兴特种不锈钢股份有限公司 灌引流砂装置
CN202576460U (zh) * 2012-02-13 2012-12-05 北京科技大学 一种高炉出铁和堵塞铁口用的高炉辅助装置

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
RU183114U1 (ru) 2018-09-11
WO2016150765A1 (fr) 2016-09-29
CN208042794U (zh) 2018-11-02
EP3274641A1 (fr) 2018-01-31
DE202015002221U1 (de) 2015-04-22
TR201904145T4 (tr) 2019-05-21

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