WO2003078096B1 - Aid system for opening a discharge aperture - Google Patents

Aid system for opening a discharge aperture

Info

Publication number
WO2003078096B1
WO2003078096B1 PCT/FR2003/000880 FR0300880W WO03078096B1 WO 2003078096 B1 WO2003078096 B1 WO 2003078096B1 FR 0300880 W FR0300880 W FR 0300880W WO 03078096 B1 WO03078096 B1 WO 03078096B1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid metal
threaded rod
rotation
refractory
pinion
Prior art date
Application number
PCT/FR2003/000880
Other languages
French (fr)
Other versions
WO2003078096A3 (en
WO2003078096A2 (en
Inventor
Reynald Filipputti
Original Assignee
Reynald Filipputti
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 Reynald Filipputti filed Critical Reynald Filipputti
Priority to AU2003244698A priority Critical patent/AU2003244698A1/en
Publication of WO2003078096A2 publication Critical patent/WO2003078096A2/en
Publication of WO2003078096A3 publication Critical patent/WO2003078096A3/en
Publication of WO2003078096B1 publication Critical patent/WO2003078096B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/44—Consumable closure means, i.e. closure means being used only once
    • B22D41/46—Refractory plugging masses
    • B22D41/465—Unplugging a vessel discharge port

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Earth Drilling (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

The aim of the invention is to create or facilitate a liquid metal outflow which is evacuated by gravity or under pressure in a capacity via an orifice which is placed in a lower part. The invention relates to a device which creates a liquid metal outflow through a mass of refractory sand for protecting the discharge aperture when it is unable to be naturally evacuated by gravity or pressure. Said device comprises a propulsion, rotation and percussion system which is placed under the discharge aperture and which can be included in the moveable liquid metal jet protection part. The energy required for the proper movements of the device can be electric, pneumatic or combined. The inventive device is particularly suitable for improving the opening of pockets of liquid metal.

Claims

REVENDICATIONS MODIFIEES [reçues par le Bureau international le 03 octobre 2003 (03.10.03) revendications 1-9 remplacées par les revendications 1-11 (1 page)] AMENDED CLAIMS [received by the International Bureau on 03 October 2003 (03.10.03) claims 1-9 replaced by claims 1-11 (1 page)]
1) Dispositif pour faciliter ou créer l'écoulement de métal liquide lors de l'ouverture d'un système de fermeture protégé par un réfractaire dans des capacités à écoulement gravitaire, sous pression ou sous vide. Ce dispositif est caractérisé en ce qu'il utilise un apport d'énergie extérieure électrique pour forer 1 ' obstruction .1) A device for facilitating or creating liquid metal flow when opening a refractory-protected closure system in gravity, pressure or vacuum capacities. This device is characterized in that it uses an external electrical energy input to drill one obstruction.
2) Dispositif selon la revendication 1 carac- térisée en ce , qu'il se loge dans les éléments inférieurs d'écoulements réfractaires pouvant être immergés dans le métal liquide2) Device according to claim 1, charac- terized in that it is housed in the lower elements of refractory flows can be immersed in the liquid metal
3) Dispositif selon la revendication 1 caractérisée en ce que l'énergie électrique peut être amenée sous et/ou au travers de l'élément réfractaire3) Device according to claim 1 characterized in that the electrical energy can be brought under and / or through the refractory element
4) Dispositif selon la revendication 1 caractérisé en ce que la perforation est induite par une tige filetée combinant de manière simultanée et continue des mouvements de propulsion, de rotation et de percussion. 5) Dispositif selon la revendication 4 caractérisée en ce la tige filetée traverse le corps du système en son centre4) Device according to claim 1 characterized in that the perforation is induced by a threaded rod combining simultaneous and continuous movements of propulsion, rotation and percussion. 5) Device according to claim 4 characterized in that the threaded rod passes through the body of the system in its center
6) Dispositif selon la revendication 4 caractérisé en ce que la tige filetée comporte à son extrémité une embout de forage pouvant concourir à la mise en fusion de l'obstruction et/ou au nettoyage de l'orifice créé6) Device according to claim 4 characterized in that the threaded rod has at its end a drill bit which can contribute to the melting of the obstruction and / or cleaning of the orifice created
7) Dispositif selon la revendication 4 carac¬ térisé en ce que le système de couplage d'entraînement mécanique en rotation entre le dispositif et la tige de forage induit un phénomène de percussion lors du dépassement du couple nominal.7) Device according to claim 4 charac ¬ terized in that the coupling mechanical drive system in rotation between the device and the drill pipe induces a percussion phenomenon when exceeding the nominal torque.
8) Dispositif selon la revendication 4 caractérisée en ce que la tige de forage est entraînée par la rotation d'une clavette longitudinale positionnée sur le pignon mené flottant8) Device according to claim 4 characterized in that the drill pipe is driven by the rotation of a longitudinal key positioned on the floating driven pinion
9) Dispositif selon la revendication 4 caractérisée en ce que le pignon mené flottant est couplé au pignon moteur par un ressort faisant office de limiteur de couple9) Device according to claim 4 characterized in that the floating driven pinion is coupled to the driving pinion by a spring acting as a torque limiter
10) Dispositif selon la revendication 4 caractérisée en ce que le pignon moteur peut être actionné par un ou plusieurs moteurs électriques10) Device according to claim 4 characterized in that the motor pinion can be actuated by one or more electric motors
11) Dispositif selon la revendication 5 carac- térisée en ce que la profondeur de forage n'est limitée que par la longueur de la tige filetée 11) Device according to claim 5, characterized in that the drilling depth is limited only by the length of the threaded rod.
PCT/FR2003/000880 2002-03-19 2003-03-19 Aid system for opening a discharge aperture WO2003078096A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003244698A AU2003244698A1 (en) 2002-03-19 2003-03-19 Aid system for opening a discharge aperture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR02/03356 2002-03-19
FR0203356A FR2837411A1 (en) 2002-03-19 2002-03-19 Device, for facilitating or producing a flow of molten metal from the discharge opening of a molten metal container, comprises an externally powered propulsive, rotative or percussive system placed under the opening

Publications (3)

Publication Number Publication Date
WO2003078096A2 WO2003078096A2 (en) 2003-09-25
WO2003078096A3 WO2003078096A3 (en) 2004-05-06
WO2003078096B1 true WO2003078096B1 (en) 2004-06-17

Family

ID=27799045

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2003/000880 WO2003078096A2 (en) 2002-03-19 2003-03-19 Aid system for opening a discharge aperture

Country Status (3)

Country Link
AU (1) AU2003244698A1 (en)
FR (1) FR2837411A1 (en)
WO (1) WO2003078096A2 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62267064A (en) * 1986-05-13 1987-11-19 Nippon Kokan Kk <Nkk> Opening apparatus for nozzle hole
US4877161A (en) * 1986-11-14 1989-10-31 Vesuvius Crucible Company Telescoping device for unplugging a vessel discharge port
WO1989011365A1 (en) * 1988-05-20 1989-11-30 Flogates Limited Disruption of blockages in molten metal teeming
FR2755045A1 (en) * 1996-10-30 1998-04-30 Filipputti Reynald Pneumatic device to facilitate or create a liquid metal flow from a vessel, especially liquid steel ladles

Also Published As

Publication number Publication date
WO2003078096A3 (en) 2004-05-06
WO2003078096A2 (en) 2003-09-25
FR2837411A1 (en) 2003-09-26
AU2003244698A1 (en) 2003-09-29

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