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WO2009003430A1 - Pièce moulée en matériau réfractaire - Google Patents

Pièce moulée en matériau réfractaire Download PDF

Info

Publication number
WO2009003430A1
WO2009003430A1 PCT/DE2008/000247 DE2008000247W WO2009003430A1 WO 2009003430 A1 WO2009003430 A1 WO 2009003430A1 DE 2008000247 W DE2008000247 W DE 2008000247W WO 2009003430 A1 WO2009003430 A1 WO 2009003430A1
Authority
WO
WIPO (PCT)
Prior art keywords
channel
width
taphole
central portion
taphole channel
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.)
Ceased
Application number
PCT/DE2008/000247
Other languages
German (de)
English (en)
Inventor
Paul-Antoine Wurtz
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.)
Individual
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
Priority to DE112008002411T priority Critical patent/DE112008002411A5/de
Publication of WO2009003430A1 publication Critical patent/WO2009003430A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B1/12—Shells or casings; Supports therefor
    • F27B1/14—Arrangements of linings
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/04—Blast furnaces with special refractories
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/14—Discharging devices, e.g. for 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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B1/21—Arrangements of devices for discharging
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/0003—Linings or walls
    • F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
    • 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
    • F27D3/1518—Tapholes

Definitions

  • Shaped component made of refractory material
  • the invention relates to a shaped component made of refractory material having the features in the preamble of claim 1 protection.
  • the area of the stitch hole channel of a melting furnace, in particular a shaft furnace such as e.g. a cupola, is subject to heavy wear. Therefore, the taphole channel must be rebuilt from time to time. For this purpose, the melting furnace has to be shut down and cleared so that the area surrounding the taphole channel can be re-lined not only from the outside, but also from the inside. The newly introduced refractory material must then dry before operation can continue. Since operation of the shaft furnace is not possible in the dry season, considerable malfunctions occur.
  • the taphole channel is located within a larger tap hole of the shaft furnace.
  • the tapping opening is also referred to in the jargon as a chapel.
  • an arrangement for lining a chapel of a blast furnace is known, wherein molded components made of refractory material are used. It is a first prefabricated mold component and least another prefabricated mold component provided. The mold components engage each other in a form-fitting manner and are configured in such a way that the lining of the chapel can be made simple and time-saving.
  • the taphole channel is located in the middle region of a larger of the mold components.
  • the invention is based on the object to show a molded component of refractory material to lining a tap hole of a shaft furnace, the service life of the tap hole and thus the entire lining of the tap hole is increased.
  • the innovation consists in that the tap hole channel is arranged on the underside of the molding component, wherein the width of the prefabricated tap hole channel increases from the furnace interior to the outside of the furnace.
  • the furnace-outer side has a central portion and recessed relative to the central portion side portions.
  • flank portions are arranged, which include an angle in the range of 20 ° to 70 °, in particular in a range of 30 ° to 60 ° with the central longitudinal axis of the needle hole channel ,
  • the taphole channel itself is preferably not wider at its outer opening than the central portion and preferably as wide as the central portion. Due to the coordinated width of the turbulent flow areas of the side of the central portion or side of the taphole channel is minimized as far as possible, the flank sections also prevent premature leaching in the area of the broad sides of the needle hole channel.
  • the tap hole channel has a rectangular cross-section, wherein its width in each cross-sectional plane is at least twice as large as its height.
  • Figures 1 and 2 show in plan view and in a perspective view of a molded component 1 made of refractory material for lining a non-illustrated tapping opening of a shaft furnace.
  • the molded component is formed in its geometry substantially parallelepiped with a length L of 1,400 mm, a width B of 700 mm and a height H of also 700 mm.
  • Essential is the configuration of the tap hole 2, which is shown in Figures 1 and 2 with a broken line.
  • the tap hole channel 2 has on its side facing the furnace interior side 3 a width B1 of 150 mm, which increases in the direction of the oven-side 4 to 400 mm.
  • the middle side 5 and the side sections 6 extend parallel to one another in their orientation, the middle section 5 protruding from the side section 6 in this exemplary embodiment by approximately 200 mm or, as the case may be, in FIG .,
  • the side portions 6 are set back relative to the central portion 5 by 200 mm.
  • flank sections 7 which with the central longitudinal axis of the needle hole channel 2 an angle in a range of 20 ° to 70 °, preferably in a range of 30 ° to 60 °.
  • the taphole channel 2 at its outer opening 8 is not wider than the middle section 5, but is virtually as wide as the central section 5. In this embodiment, that would be 400 mm, with the side sections 6 and the flank sections 7 total 300 mm omitted.
  • the flank sections 7 are approximately as wide as the side sections 6.
  • the tap hole channel 2 has a rectangular cross section, as can be seen in Figure 2.
  • the width B1 of the taphole channel is at least twice as large as its height H1 in each cross-sectional plane.
  • FIGS. 1 and 2 also show a groove which, with the exception of the underside of the molded component 1 receiving the taphole channel 2, extends over all three sides of the molded component in the region of the outer circumference.
  • the groove serves to introduce refractory material in order to cast the molded component 1 within the chapel or the tapping opening of the shaft furnace and thus to anchor the molded component.
  • the remaining between the mold part 1 and the wall of the tap not shown free spaces are poured with refractory material. This applies both to the area of the groove 9 and to the other long sides.
  • the free spaces to be poured out can be relatively narrow.
  • the molded component 1 according to the invention is also distinguished by the fact that it has a significantly greater length in relation to the height and width, which contributes significantly to the improvement in service life. While conventional molded components have a length of, for example, 500 mm, the length L of the molded component is at least twice as large, ie it is at least 1,000 mm. With regard to the height and width of the molded component 1, it can be said that the length L is at least twice as large as the height H or width B of the molded component 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

L'invention concerne une pièce moulée (1) en matériau réfractaire destinée à l'habillage d'un trou de coulée d'un four à cuve, qui augmente la durée de vie du canal (2) du trou de coulée et donc de l'ensemble de l'habillage du trou de coulée. Selon l'invention, le canal (2) du trou de coulée est situé sur le côté inférieur de la pièce moulée (1), la largeur (B1) du canal (2) du trou de coulée augmentant entre l'intérieur du four et l'extérieur du four.
PCT/DE2008/000247 2007-06-29 2008-02-09 Pièce moulée en matériau réfractaire Ceased WO2009003430A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112008002411T DE112008002411A5 (de) 2007-06-29 2008-02-09 Formbauteil aus Feuerfestmaterial

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200720009160 DE202007009160U1 (de) 2007-06-29 2007-06-29 Formbauteil aus Feuerfestmaterial
DE202007009160.5 2007-06-29

Publications (1)

Publication Number Publication Date
WO2009003430A1 true WO2009003430A1 (fr) 2009-01-08

Family

ID=38460881

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2008/000247 Ceased WO2009003430A1 (fr) 2007-06-29 2008-02-09 Pièce moulée en matériau réfractaire

Country Status (2)

Country Link
DE (2) DE202007009160U1 (fr)
WO (1) WO2009003430A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011000787U1 (de) 2011-04-04 2011-06-01 Wurtz, Paul-Antoine, 47441 Formbauteilanordnung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396961A (en) * 1965-08-09 1968-08-13 Gen Refractories Co Precast taphole assembly
GB2203526A (en) * 1987-04-08 1988-10-19 Goricon Metallurg Services Improvements relating to repair of steel-making vessels
WO2000075380A1 (fr) * 1999-06-04 2000-12-14 Sms Demag Aktiengesellschaft Chenal de coulee de recipients de fusion et poches de coulee
DE202004007245U1 (de) * 2004-05-04 2004-07-01 Wurtz, Paul-Antoine Stichlocheinsatz und Schmelzofen mit Stichlocheinsatz
JP2004218022A (ja) * 2003-01-16 2004-08-05 Shinagawa Refract Co Ltd 高炉出銑口の補修方法と補修用大型ブロックおよび補修構造
JP2005008966A (ja) * 2003-06-20 2005-01-13 Nippon Steel Corp 高炉炉底耐火物構造及び出銑口煉瓦
EP1630508A1 (fr) * 2004-08-30 2006-03-01 Paul-Antoine Wurtz Système de revêtement réfractaire pour le revêtement d'un trou de coulée d'un haut fourneau

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396961A (en) * 1965-08-09 1968-08-13 Gen Refractories Co Precast taphole assembly
GB2203526A (en) * 1987-04-08 1988-10-19 Goricon Metallurg Services Improvements relating to repair of steel-making vessels
WO2000075380A1 (fr) * 1999-06-04 2000-12-14 Sms Demag Aktiengesellschaft Chenal de coulee de recipients de fusion et poches de coulee
JP2004218022A (ja) * 2003-01-16 2004-08-05 Shinagawa Refract Co Ltd 高炉出銑口の補修方法と補修用大型ブロックおよび補修構造
JP2005008966A (ja) * 2003-06-20 2005-01-13 Nippon Steel Corp 高炉炉底耐火物構造及び出銑口煉瓦
DE202004007245U1 (de) * 2004-05-04 2004-07-01 Wurtz, Paul-Antoine Stichlocheinsatz und Schmelzofen mit Stichlocheinsatz
EP1630508A1 (fr) * 2004-08-30 2006-03-01 Paul-Antoine Wurtz Système de revêtement réfractaire pour le revêtement d'un trou de coulée d'un haut fourneau

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011000787U1 (de) 2011-04-04 2011-06-01 Wurtz, Paul-Antoine, 47441 Formbauteilanordnung

Also Published As

Publication number Publication date
DE202007009160U1 (de) 2007-08-30
DE112008002411A5 (de) 2010-06-10

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