EP1806189A2 - Ouverture de remplissage pour des poches-torpilles et parement pour l'utilisation dans l'ouverture de remplissage - Google Patents

Ouverture de remplissage pour des poches-torpilles et parement pour l'utilisation dans l'ouverture de remplissage Download PDF

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Publication number
EP1806189A2
EP1806189A2 EP06026320A EP06026320A EP1806189A2 EP 1806189 A2 EP1806189 A2 EP 1806189A2 EP 06026320 A EP06026320 A EP 06026320A EP 06026320 A EP06026320 A EP 06026320A EP 1806189 A2 EP1806189 A2 EP 1806189A2
Authority
EP
European Patent Office
Prior art keywords
curbs
filling opening
steel
steel armor
base portion
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
EP06026320A
Other languages
German (de)
English (en)
Other versions
EP1806189A3 (fr
EP1806189B1 (fr
Inventor
Ferdinand Stöckmann
Diethardt Küppers
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.)
Beck U Kaltheuner Feuerfeste Erzeugnissegmbh & Co KG
Original Assignee
Beck U Kaltheuner Feuerfeste Erzeugnissegmbh & Co KG
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 Beck U Kaltheuner Feuerfeste Erzeugnissegmbh & Co KG filed Critical Beck U Kaltheuner Feuerfeste Erzeugnissegmbh & Co KG
Publication of EP1806189A2 publication Critical patent/EP1806189A2/fr
Publication of EP1806189A3 publication Critical patent/EP1806189A3/fr
Application granted granted Critical
Publication of EP1806189B1 publication Critical patent/EP1806189B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/12—Travelling ladles or similar containers; Cars for ladles
    • 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
    • B22D41/02—Linings

Definitions

  • the innovation concerns a filling opening for torpedo ladles and curbs for protecting the filling opening of torpedo pans from the corrosive attack of molten media, such as pig iron and slag.
  • Torpedo pans are used in many places for the transport of molten pig iron between blast furnace and steel mill. These vessels have a capacity of up to 450 t and owe their name to their slender, cigar-shaped form.
  • the torpedo plugs usually have in their middle section a filling opening through which molten pig iron is placed in the interior of the torpedo ladle. For emptying, the torpedo ladle is tilted so that the molten content of the torpedo ladle is emptied through the previously used for filling opening.
  • the filling opening of torpedo pans comprises an annular steel armor extending perpendicular to the surface of the torpedo pot central section.
  • This steel armor when filling and especially emptying the torpedo ladle against the corrosive attack of the molten pan contents (pig iron and slag), is currently "on site” cast a refractory casting compound, which surrounds the steel armor of the opening from the inside, outside and top, such as described below with reference to FIG. 1.
  • Fig. 1 shows schematically a section of the central portion of a torpedo fir, in which a filling opening 1 is provided.
  • a portion of the outer steel shell 2 of the torpedo ladle which is formed in the region of the filling opening as a vertically upstanding, annular steel armor 4.
  • a Feuerfestmautation FF is schematically indicated.
  • the already mentioned refractory casting compound 5 is introduced from above, to protect the steel armor from inside, outside and above when it solidifies.
  • the innovation is based on the object, the filling opening of torpedo plugs form so that no annoying cracking occurs, and that the formation of "bears" no advance is made.
  • the progress that can be achieved with the help of the innovation results primarily from the fact that only two prefabricated refractory and wear-resistant shaped bricks are needed to ensure the protection of the steel armor.
  • prefabricated molded blocks eliminates the introduction of a refractory casting of above and the resulting rough upper surface of the refractory material.
  • the prefabricated conglomerates of suitable refractory materials according to the invention have been cast in their preparation so that the surfaces wetted later by the pig iron are formed smooth and free of pores.
  • the stones are thermally treated prior to their installation and can thus be installed completely crack-free.
  • the smooth surfaces achieved thereby provide no prerequisite for the formation of adherent disturbing "bears".
  • the torpedo ladle has an outer steel shell 2 and a multilayer refractory lining facing the ladle interior.
  • the circular cross-section of the Torpedopfanneninneren merges in the region of the filling opening in a frusto-conical cross-section, in which area the steel shell 2 merges into a steel tank associated with the filling 4.
  • the steel armor 4 is in the form of a truncated cone tapering upwards, so that with respect to the filling opening, the walls of the steel armor are inclined relative to each other.
  • a horizontally outwardly projecting ring 6 can be seen, which preferably consists of steel and is preferably welded to the upper end of the steel armor 4.
  • each curb 8, 8 ' comprises a base portion 9 and 9', respectively, whose outer peripheral surface bears against the inner surface of the upper end portion of the steel armor 4, and also each an outwardly projecting collar 11, 11 '.
  • the curbs 8, 8 ' are dimensioned so that the outer peripheral surfaces of their base portions 9 and 9' are received between the end portions of the steel armor 4, and the undersides of the projecting collar 11 and 11 'on the top of the outwardly projecting ring. 6 support. In this way, the circumference of the annular steel armor 4 is protected from contact with aggressive molten media.
  • Fig. 4 shows a partial longitudinal section along line IV-IV in Fig. 6.
  • curbs 8 and 8 ' are in contact with the inner wall of the steel armor 4 with their outer surfaces, and that the collar 11 or 11 protruding horizontally outwards in the drawing 'These curbs overlap the steel armor and are supported on a ring 6, which is overlapped by the collar 11 protective.
  • the inner surfaces 14 and 14 'of the curbs 8 and 8' define the area of the filling opening available for the average of a molten medium and form a flow opening 13 indicated in FIG.
  • Each of the two curbs 8 and 8 ' has, as shown in Fig. 6, a U-shaped configuration with a central web and two lateral legs. If the two curbs are placed directly against each other with their legs or joined together by means of an intermediate intermediate medium, then the arrangement shown in Fig. 6, in which between the legs and the webs of the two U-shaped curbs 8 and 8 'for the passage the molten medium available range of the filling opening, ie the flow opening 13 is formed.
  • the two curbs 8 and 8 'in their arrangement of FIG. 6 in the filling opening i. Inserted in the upper end region of the steel armor 4, the two curbs form almost the entire circumference of the filling opening, i. the steel armor 4, overarching protection, which effectively prevents the molten medium during filling of Torpedopfanne, and in particular when emptying the torpedo firing with the filling opening, in particular the upper edge of the steel armor 4 comes into contact.
  • the two curbs 8 and 8 ' are preferably identical in design to reduce manufacturing costs and inventory. However, special circumstances may make it necessary to design the two curbs required to protect a filling opening, deviating from one another, which will be the case in particular when the steel armor 4 to be protected has a discontinuous course.
  • Fig. 5 shows a detail of Fig. 4 and can be particularly well seen as the collar 11, the steel armor 4 and the outer ring 6 welded thereto protective overlaps.
  • the reference numerals 14 and 14 ' designate the walls of the flow-through opening 13 through which the molten medium flows (FIG. 6).
  • Reference numerals 20 in FIGS. 3 and 6 are preferably wedge-shaped receiving spaces in the boundary surfaces of adjacent curbs 8 and 8 '. These receiving spaces can be filled with the aid of a refractory material, whereby a locking of the two curbs is achieved.
  • the curbs 8 and 8 ' are made of refractory material, as is well known for slurry specific requirements in the use of molten media. Depending on the requirements, the material can be selected so that temperatures up to 1650 ° C are harmless for the curb. Ceramic is suitable for this purpose, eg a dense refractory concrete with about 95% by weight Al 2 O 3 . For other temperatures or other casting material but other refractory materials can be used.
  • the two curbs forming the refractory filling opening can be detachably fastened to the steel armor 4 by means of a screw connection 18.
  • the curbs are interchangeable, so that when excessive wear or damage replacement can be made.
  • the screw is preferably screwed from the outside of the steel armor 4 in the curbs, so that the screws do not come into contact with the molten medium.
  • curbs used in the casting of these stones casting direction can be chosen so that the wetted by the use of pig iron surfaces of the stones are formed smooth and free of pores. Since the curbs are treated thermally before installation, they can be installed completely crack-free. The resulting smooth surfaces make it difficult to form "bears".
  • the outer edges of the projecting collars 11 and 11 ' which are overflowed by the casting material when pouring out the molten cup contents, may be provided with a pouring and / or drip edge.
  • the pouring edge helps to create a well-defined spout while the drip edge provides a defined location for droplet formation from which drops may fall or flow back into the pan.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Elevator Door Apparatuses (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
EP06026320A 2005-12-21 2006-12-19 Ouverture de remplissage pour des poches-torpilles Not-in-force EP1806189B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202005019967U DE202005019967U1 (de) 2005-12-21 2005-12-21 Einfüllöffnung für Torpedopfannen und Randstein zum Einsetzen in die Einfüllöffnung

Publications (3)

Publication Number Publication Date
EP1806189A2 true EP1806189A2 (fr) 2007-07-11
EP1806189A3 EP1806189A3 (fr) 2008-08-27
EP1806189B1 EP1806189B1 (fr) 2010-08-11

Family

ID=36121133

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06026320A Not-in-force EP1806189B1 (fr) 2005-12-21 2006-12-19 Ouverture de remplissage pour des poches-torpilles

Country Status (3)

Country Link
EP (1) EP1806189B1 (fr)
AT (1) ATE477072T1 (fr)
DE (2) DE202005019967U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102825247A (zh) * 2012-08-15 2012-12-19 济钢集团有限公司 一种鱼雷型铁水罐罐口

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2341054A (en) 1942-12-24 1944-02-08 Pennsylvania Engineering Works Free flow hot metal ladle
CS226484B1 (cs) 1982-11-26 1984-03-19 Lankoci Ales Vylévací hrdlo rotační nádoby, zejména nádoby pojízdného mísiče

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2341054A (en) 1942-12-24 1944-02-08 Pennsylvania Engineering Works Free flow hot metal ladle
CS226484B1 (cs) 1982-11-26 1984-03-19 Lankoci Ales Vylévací hrdlo rotační nádoby, zejména nádoby pojízdného mísiče

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102825247A (zh) * 2012-08-15 2012-12-19 济钢集团有限公司 一种鱼雷型铁水罐罐口

Also Published As

Publication number Publication date
EP1806189A3 (fr) 2008-08-27
DE502006007628D1 (de) 2010-09-23
DE202005019967U1 (de) 2006-03-16
EP1806189B1 (fr) 2010-08-11
ATE477072T1 (de) 2010-08-15

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