• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    This invention relates to metallurgy, in particular to the manufacture of a converter bottom. The aim of the invention is to increase the durability of the bottom. The bottom of the metallurgical tank contains a metal plate 1 of the base and the lining of layers 2, 3, 4. Layer 2 is made of heat-resistant material, layers 3, 4 are made of refractory bricks. In the layer 4, gas-permeable refractory elements 5 are placed, enclosed in a side metal casing 7 and closed from the bottom by a metal plate 8 with a gas inlet. Between elements 5 and the refractory bricks of layer 4, bricks, made of baked magnesium oxide and impregnated with tar, are placed close to the metal casing 7. During the refining of the melt in the metallurgical tank, the bricks expand when heated and remove the refractory gas-permeable element 5, preventing the expansion of the metal casing 7 and erosion near the elements 5. This allows the bottom resistance to be increased due to reduced wear of the refractory gas-permeable elements. 3 il. CO t L x el 05 CM fput.J
    公开号:SU1314956A3
    申请号:SU813356099
    申请日:1981-11-25
    公开日:1987-05-30
    发明作者:Гросжан Жан-Клод；Ландри Жан-Мари
    申请人:Ирсид Энститю Де Решерш Де Ля Сидерюржи Франсэз (Фирма)；
    IPC主号:
    专利说明:

    one-.
    This invention relates to metallurgy, in particular to the manufacture of a converter bottom.
    The purpose of the invention is to increase the durability of the bottom.
    Figure 1 shows the bottom of the metallurgical tank, a vertical section j in figure 2 is the same, top view; on fig.Z - section aa in figure 1.
    The bottom of the metallurgical tank contains a metal plate 1 of the base and the lining of layers 2, 3 and A. At that, layer 2 is made of heat-resistant material, and layers 3 and 4 are made of refractory bricks. Some bricks of the layer 4, in contact with the molten metal, are replaced by refractory gas-permeable elements 5, formed by connecting 6 gas-permeable bricks, enclosed in a side metal casing 7 and closed from the bottom by a metal plate 8 with a hole dp gas supply. Tr, pipelines 9 for gas supply are inserted into the metal plate 1 and layers 2 and 3 of the lining through specially made holes.
    In order to avoid the danger of burning the bottom of the tank in the event of a metal breakthrough, impermeability between the pipelines 9 and the bricks of layer 3 is provided either by applying a thin layer of magnesium oxide powder to the pipelines 9, or by ingesting with an asbestos cord. The pipelines 9 are hermetically connected by means of a plate 10 to gas supply pipelines 11 connected to a switchgear 12 fed by a source of gas 13 under pressure.
    The gas-permeable refractory elements 5 are distributed along the intermediate ring 14 at approximately half the distance from one side of the oxygen jet impact zone 15 and, on the other hand, from the wall 16 of the metallurgical tank.
    Layer 4 is laid as follows. Two perpendicular central paths 17 are drawn on the layer 3, which coincide with the two orthogonal diameters of the bottom of the container, then fire-resistant gas-permeable elements 5 are placed at the intended places, after which they are laid over each
    This element 5 is made of bricks 18 made of a material that expands when heated, for example, from calcined magnesium oxide, and impregnated with tar. Then finish the manufacture of the layer 4 of refractory bricks 19 of the usual type.
    During operation of the device during the refining of the melt in the metallurgical vessel, the bricks 18 expand when heated and form something like a vice tightly compressing the refractory gas-permeable element 5, which prevents the metal from melting.
    housing 7, with the bricks 18 having a property of resisting compression and preventing erosion near the element 5.
    In a preferred embodiment, as
    shown in Fig. 3, the bottom of the converter contains twelve gas-permeable refractory elements 5, with eight elements 5 placed on tracks 17, and four such elements on quarters 20 of a circle 20.
    The invention can be used for other metallurgical tanks with bottom blowing.
    The present invention makes it possible to increase the durability of the bottom of a metallurgical vessel as a whole due to a decrease in the wear of refractory gas-permeable elements.
    35
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    The bottom of the metallurgical tank containing a metal base plate, a layer of heat-resistant material, two layers (refractory) {bricks with holes in the second layer, into which are installed means for blowing the melt with gas in the form of refractory gas-permeable elements, each
     of which is enclosed in a side metal casing and closed from the bottom by a metal plate with a gas inlet, characterized in that, in order to increase the bottom level, in the second layer of refractory bricks between the refractory gas passage and the refractory bricks are installed close to the side metal casing bricks
    55 made of burned magnesium oxide and impregnated with tar.
    20
    fis. J
    Compiler L.Sharapova Editor M.Petrova Tehred L.Serdyukova Proofreader G. Reshetnik
    Order 2223/58 Circulation 550Subscription
    VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, Projecto st., A
    类似技术:
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    US3945820A|1976-03-23|Process and immersion lances for introducing oxygen into a metal melt
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    US2416490A|1947-02-25|Catalyst chamber insulation
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    US1133245A|1915-03-23|Metallic union.
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    US994889A|1911-06-13|Method of and apparatus for condensing zinc vapor to liquid metal.
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    同族专利:
    公开号 | 公开日
    PT74043A|1981-12-01|
    EP0053554B2|1991-08-21|
    AU7788381A|1982-06-10|
    ES274986U|1984-04-16|
    FR2495187A1|1982-06-04|
    DE3167751D1|1985-01-24|
    EP0053554A1|1982-06-09|
    KR830007854A|1983-11-07|
    AT10754T|1984-12-15|
    PT74043B|1983-04-26|
    JPS6236845Y2|1987-09-19|
    JPS57120085A|1982-07-26|
    CS223850B2|1983-11-25|
    ES274986Y|1984-12-01|
    JPS61150845U|1986-09-18|
    EP0053554B1|1984-12-12|
    BR8107825A|1982-07-06|
    IN155087B|1984-12-29|
    KR890003683B1|1989-09-30|
    CA1181587A|1985-01-29|
    US4403768A|1983-09-13|
    FR2495187B1|1983-01-28|
    ZA818089B|1982-10-27|
    AU542722B2|1985-03-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR1210459A|1957-12-02|1960-03-09|A R B E D|Steelmaking process and converter for this or similar process|
    CH595130A5|1975-04-24|1978-01-31|Alusuisse|
    FR2322202A1|1975-08-29|1977-03-25|Siderurgie Fse Inst Rech|Steel refining by oxygen lancing and bottom blowing - for improved quality steel of various grades|
    CH625040A5|1976-06-01|1981-08-31|Alusuisse|
    US4238121A|1977-10-07|1980-12-09|Kawasaki Steel Corporation|Hearth structure of an oxygen-bottom-blowing converter|
    JPS54158331A|1978-06-05|1979-12-14|Aikoh Co|Tundish for continuous steel casting|
    JPS5565313A|1978-11-13|1980-05-16|Nippon Steel Corp|Steel manufacture with top blown oxygen|AT382889B|1984-03-15|1987-04-27|Voest Alpine Ag|RINSING DEVICE FOR A METALLURGICAL VESSEL|
    DE3426736C2|1984-07-20|1988-06-16|Kloeckner Cra Technologie Gmbh, 4100 Duisburg, De|
    AT384034B|1986-02-03|1987-09-25|Voest Alpine Ag|RINSING DEVICE FOR A METALLURGICAL VESSEL|
    DE19604413C1|1996-02-07|1997-05-28|Veitsch Radex Ag|Gas flushing arrangement for metallurgical vessels|
    DE29602813U1|1996-02-16|1996-04-04|Beck & Kaltheuner Fa|Ceramic flushing block for metallurgical vessels|
    JPH10298630A|1997-02-25|1998-11-10|Tokyo Yogyo Co Ltd|Blowing device for bottom blowing gas in ladle for molten metal|
    WO2006004577A2|2004-03-12|2006-01-12|Melbj Holdings, Llc|Lubricant for the ocular surface|
    CN101684985B|2008-09-24|2011-08-17|中冶天工建设有限公司|Masonry method of bottom heat preservation and insulation bricks of annular heating furnace|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8025615A|FR2495187B1|1980-12-02|1980-12-02|
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