EP0076790A1 - Dispositif pour le chargement dosé d'un moule à coulée continue avec poudre de coulée - Google Patents

Dispositif pour le chargement dosé d'un moule à coulée continue avec poudre de coulée Download PDF

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Publication number
EP0076790A1
EP0076790A1 EP82890103A EP82890103A EP0076790A1 EP 0076790 A1 EP0076790 A1 EP 0076790A1 EP 82890103 A EP82890103 A EP 82890103A EP 82890103 A EP82890103 A EP 82890103A EP 0076790 A1 EP0076790 A1 EP 0076790A1
Authority
EP
European Patent Office
Prior art keywords
casting
mold
discharge
discharge edge
powder
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
EP82890103A
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German (de)
English (en)
Other versions
EP0076790B1 (fr
Inventor
Kurt Dipl.Ing. Stangl
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.)
Voestalpine AG
Original Assignee
Voestalpine AG
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 Voestalpine AG filed Critical Voestalpine AG
Publication of EP0076790A1 publication Critical patent/EP0076790A1/fr
Application granted granted Critical
Publication of EP0076790B1 publication Critical patent/EP0076790B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/108—Feeding additives, powders, or the like

Definitions

  • the invention relates to a device for the metered feeding of a continuous casting mold with casting powder, consisting of a conveyor device which can be connected to a storage container for the casting powder and which has a discharge edge running at the discharge end depending on the cross-sectional shape of the mold.
  • the delivery rate of the mold powder can be controlled, but not its uniform distribution over the bath surface.
  • the course of the discharge edge is generally chosen such that the casting powder trickles onto the bath surface in the middle between the dip tube for the melt feed and the peripheral wall of the mold.
  • the distribution of the casting powder on the bath surface is measured, for example with the aid of radiation-sensitive measuring devices, and the casting powder is fed as a function of the distribution determined by a conveying device, the outlet channels for the casting powder which can be moved over the bath surface having.
  • the outlet channels are connected to an oscillating conveyor, which ensures a corresponding supply of mold powder. Since a quantity control for the mold powder can additionally be provided, a uniform mold powder distribution can be guaranteed, but with a considerable, trouble-prone control effort.
  • the invention is therefore based on the object of providing a device for metering a continuous casting mold with casting powder, which ensures the desired distribution of the casting powder on the bath surface with simple means.
  • the invention achieves the object in that the conveying device consists of an oscillating conveyor which carries along the discharge edge a baffle with a metering gap which runs along the discharge edge depending on the distribution of the along the metering gap in the outflow direction delivery pressure acting on the casting powder is different.
  • Such a vibratory conveyor initially seems to be unsuitable for solving the task, since the conveying quantity of the conveyed material can be guaranteed in a simple manner with the aid of a conventional vibratory conveyor via the oscillation amplitudes, but not the distribution of the conveyed material along a discharge edge that is inclined differently to the conveying direction.
  • a baffle along the discharge edge in connection with a metering gap, it is possible to force a metered outflow of the casting powder over the entire length of the metering gap if the gap width is selected as a function of the delivery pressure on the casting powder in the respective gap area.
  • This conveying pressure depends on the one hand on the conveying force of the vibratory conveyor and on the other hand on the loading of the casting powder by the pent-up layers of casting powder which try to push the layers of casting powder underneath laterally. This creates the possibility of applying the same amount of casting powder to the bath surface via discharge edge cuts running in the conveying direction of the vibratory conveyor.
  • the delivery pressure on the casting powder caused by the load-bearing layers of casting powder is lower than the delivery pressure by the vibrating conveyor itself, so that the gap height must be different to compensate for the different conditions that arise along the metering gap.
  • the gap widths must accordingly be chosen smaller, whereby it must also be taken into account that the height of the metering gap also becomes smaller as the angle of inclination between the conveying direction of the vibratory conveyor and the discharge edge decreases due to the decreasing conveying pressure in the outflow direction must be larger to equal Ab to ensure throwing quantities over the discharge edge course.
  • the delivery pressure itself and therefore the discharge amount is determined by the vibration amplitudes of the vibratory conveyor and is independent of the delivery pressure distribution.
  • Casting powder is generally very free-flowing, so that very small gap widths result in the desired discharge amount. This means that even slight deviations in the gap height disrupt the desired distribution of the amount of mold powder discharged.
  • the metering gap in the region of the discharge edge can be divided like a comb by vertical webs. With the same gap cross-section, the webs require a greater height of the outlet openings between the webs, so that slight inaccuracies with regard to the gap height can only make themselves slightly noticeable.
  • the ridge effect is significantly supported by the ridges arranged in a manner that points to the uniform distribution of the casting powder to be discharged over the discharge edge has an advantageous influence.
  • the height of the metering gap in the region of the discharge edge can finally be adjustable, for example by tongues which are adjustably mounted on the baffle wall. Subsequent adjustment is also possible, which can take all influences into account.
  • the device shown for metering a continuous casting mold with casting powder consists essentially of an oscillating conveyor 1 which is supported by spring elements 2 and is connected to an oscillating drive 3. On the feed side, this vibratory conveyor 1 is connected to a storage container 4 for the casting powder, it being possible for the discharge quantity to be controlled via an indicated slide 5.
  • the vibrating conveyor 1 has a discharge edge 6, the course of which is adapted to the cross-sectional shape of a mold, the outline of which is indicated in FIG. 2 by the dash-dotted line 7.
  • the drop edge 6 is in terms of their Course designed so that the mold powder is introduced approximately centrally between the circumferential wall of the mold 7 and the dip tube in the mold and can consequently be distributed evenly on the bath surface. The prerequisite for this, however, is that the casting powder flows in a metered manner over the length of the discharge edge.
  • the vibratory conveyor 1 carries along the discharge edge 6 a baffle 9 with a metering gap 10, which is divided like a comb by vertical webs 11 according to the embodiment. 1 and 3 it can clearly be seen that the height of the metering gap is different over the length of the discharge edge, namely the height of the metering gap 10 decreases with increasing accumulation height of the casting powder, as can be seen from the dashed height 12 of the dumping bed, which results from the pouring of powder against the dam 9.
  • the height of the metering gap is not only dependent on the respective bed height or the bed height distribution, but also on the inclination of the discharge edge 6 with respect to the conveying direction of the vibratory conveyor 1.
  • the conveying force acting in the conveying direction naturally results in a larger in the region of a baffle wall running transversely to the conveying direction Delivery pressure in the outflow direction on the casting powder than in the region of a baffle wall inclined at an acute angle thereto.
  • the dynamic pressure and the load-bearing casting powder layers are effective with their weight in order to press the casting powder through the metering gap 10, which is taken into account by the different gap height.
  • tongues 15 which are adjustable in height and which protrude against the metering gap 10 are mounted on the retaining wall 9, the gap width can be adjusted at least in some areas, so that an adaptation to very different conditions is possible.
  • the tongues 15 can be fixed in a slot 17 of the storage wall 9 by means of a clamping screw 16, the adjustment being carried out by loosening the clamping screws.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Jigging Conveyors (AREA)
  • Continuous Casting (AREA)
EP82890103A 1981-10-05 1982-07-15 Dispositif pour le chargement dosé d'un moule à coulée continue avec poudre de coulée Expired EP0076790B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT4246/81 1981-10-05
AT0424681A AT370654B (de) 1981-10-05 1981-10-05 Vorrichtung zum dosierten beschicken einer stranggiesskokille mit giesspulver

Publications (2)

Publication Number Publication Date
EP0076790A1 true EP0076790A1 (fr) 1983-04-13
EP0076790B1 EP0076790B1 (fr) 1984-12-05

Family

ID=3561543

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82890103A Expired EP0076790B1 (fr) 1981-10-05 1982-07-15 Dispositif pour le chargement dosé d'un moule à coulée continue avec poudre de coulée

Country Status (6)

Country Link
US (1) US4502615A (fr)
EP (1) EP0076790B1 (fr)
JP (1) JPS5870954A (fr)
AT (1) AT370654B (fr)
CA (1) CA1196765A (fr)
DE (1) DE3261463D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT403555B (de) * 1996-04-16 1998-03-25 Voest Alpine Stahl Donawitz Verfahren und vorrichtung zum aufbringen von giesspulver auf den giessspiegel beim stranggiessen
CN112278747A (zh) * 2020-10-15 2021-01-29 河北华丰能源科技发展有限公司 适用于料仓与振动给料机的连接结构
AT524882A1 (de) * 2021-04-09 2022-10-15 Neuson Hydrotec Gmbh Austragevorrichtung für schüttgutbehälter

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0636322B1 (fr) * 1993-07-31 2000-12-06 Hauni Maschinenbau Aktiengesellschaft Dispositif de transport pour la formation d'une couche uniforme
US5580171A (en) * 1995-07-24 1996-12-03 Lim; John C. Solids mixing, storing and conveying system for use with a furnace for single crystal silicon production
US6116409A (en) * 1998-02-19 2000-09-12 Eastman Kodak Company Conveyor for uniformly distributing parts
DE19835530A1 (de) * 1998-08-06 2000-02-10 Rossendorf Forschzent Vorrichtung zum Fördern von Schüttgut mittels Vibrationsförderung
US6197114B1 (en) 1998-11-05 2001-03-06 Material Sciences Corporation Power feeding apparatus having an adjustable feed width
JP3687792B2 (ja) * 2002-11-15 2005-08-24 松本工業株式会社 被加工材の排出装置
CA2712153A1 (fr) * 2009-08-03 2011-02-03 Axis Automation Group Appareil de garniture d'aliments
CN102862787A (zh) * 2012-09-29 2013-01-09 新乡市飞龙冶金机械有限公司 一种自动控制振动布料器
CN102862786B (zh) * 2012-09-29 2014-12-10 新乡市飞龙冶金机械有限公司 自动控制振动布料器
CN110153385B (zh) * 2019-05-29 2021-09-14 湖南华菱涟钢特种新材料有限公司 一种加渣装置
IT202000004066A1 (it) * 2020-02-27 2021-08-27 Ergolines Lab S R L Dispositivo di distribuzione, sistema, metodo per la distribuzione di polveri in lingottiera

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2263876A1 (de) * 1971-12-28 1973-07-05 Ardal Og Sunndal Verk Foerder- und zumessanlage fuer koerniges material
DE2833867A1 (de) * 1978-07-31 1980-02-21 Mannesmann Ag Einrichtung zum regeln der giesspulverzufuhr bei einer vorrichtung zum einbringen von giesspulver
FR2463397A1 (fr) * 1979-08-09 1981-02-20 Poncet Pierre Appareil pour la distribution automatique de poudre de laitier dans les lingotieres de coulee continue
DE3003734B1 (de) * 1980-01-30 1981-05-14 Mannesmann AG, 4000 Düsseldorf Vorrichtung zum Aufbringen von Giesspulver

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1702525A (en) * 1929-02-19 Machine
US1647704A (en) * 1925-05-19 1927-11-01 Lea James Edward Apparatus for the volumetric measurement of granular materials
FR627520A (fr) * 1927-01-13 1927-10-06 Perfectionnements aux machines automatiques à peser et à ensacher
US1752549A (en) * 1928-10-19 1930-04-01 Beardsley & Piper Co Sand-feeding mechanism for molding machines
US3411566A (en) * 1967-02-20 1968-11-19 Astrov Evgeny Ivanovitch Device for supplying powdered material into a mold of a continuous casting machine
CH537305A (de) * 1972-08-24 1973-05-31 Mettler Instrumente Ag Dosierelement für feinkörniges Material an einem Behälter
DE2814496C3 (de) * 1978-03-31 1983-06-09 Mannesmann AG, 4000 Düsseldorf Vorrichtung zum dosierten, praktisch staubfreien Einbringen von Gießpulver in eine Stranggießkokille

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2263876A1 (de) * 1971-12-28 1973-07-05 Ardal Og Sunndal Verk Foerder- und zumessanlage fuer koerniges material
DE2833867A1 (de) * 1978-07-31 1980-02-21 Mannesmann Ag Einrichtung zum regeln der giesspulverzufuhr bei einer vorrichtung zum einbringen von giesspulver
FR2463397A1 (fr) * 1979-08-09 1981-02-20 Poncet Pierre Appareil pour la distribution automatique de poudre de laitier dans les lingotieres de coulee continue
DE3003734B1 (de) * 1980-01-30 1981-05-14 Mannesmann AG, 4000 Düsseldorf Vorrichtung zum Aufbringen von Giesspulver

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT403555B (de) * 1996-04-16 1998-03-25 Voest Alpine Stahl Donawitz Verfahren und vorrichtung zum aufbringen von giesspulver auf den giessspiegel beim stranggiessen
CN112278747A (zh) * 2020-10-15 2021-01-29 河北华丰能源科技发展有限公司 适用于料仓与振动给料机的连接结构
AT524882A1 (de) * 2021-04-09 2022-10-15 Neuson Hydrotec Gmbh Austragevorrichtung für schüttgutbehälter

Also Published As

Publication number Publication date
AT370654B (de) 1983-04-25
JPS5870954A (ja) 1983-04-27
EP0076790B1 (fr) 1984-12-05
ATA424681A (de) 1982-09-15
DE3261463D1 (en) 1985-01-17
CA1196765A (fr) 1985-11-19
US4502615A (en) 1985-03-05

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