• 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:
    A cover for a metallurgical vessel comprises an annular outer tubular collar defining a center, a plurality of tubular legs extending inwardly from the collar toward the center, and an annular inner tubular collar fixed to the legs and defining a plurality of throughgoing passages. The inner collar is formed by respective inwardly concave tubular sections defining the passages and respective inwardly convex and tubular elbow sections carried on the legs between the passages and forming an undulating annulus with the inwardly concave sections. A multiplicity of cooling tubes extend between the collars and legs and are connected thereto, and a cooler is provided for circulating a coolant through the tubes, collars, and legs. This system ensures excellent cooling right at the passages, so electrodes extending through these passages need not be provided with their own coolers.
    公开号:SU1093261A3
    申请号:SU823512402
    申请日:1982-11-19
    公开日:1984-05-15
    发明作者:Кульманн Герберт
    申请人:Сидепал С.А. (Фирма)；Сосьете Эндюстриель Партисипасьон Люксембуржуаз (Фирма)；
    IPC主号:
    专利说明:

    2. The lid according to claim 1, characterized by the fact that the elements of the inner marator ring and their connecting knees are surrounded on the outside by at least one cooling tube
    3. Cover on PP. 1 and 2, about the fact that, in the center between the knees there is a hole,
    in which a circular element is introduced, consisting of; cooling tubes.
    4. Kryppka according to claim 3, characterized in that the circular element consists of vertically arranged tubes, connected by caps, into a meander cooling system with water.
    5. Lid in PP, 1-4, characterized in that the holes for the electrodes are lined with refractory material.
    The invention relates to ferrous metallurgy, in particular to devices for water-cooled arches of arc steel-smelting furnaces.
    The closest to the technical essence and the achieved result to the proposed is a water-cooled cover for metallurgical vessels, containing a water-cooled tubular support structure consisting of an outer circular piping ring, an internal piping ring and connecting them radial water-cooled pipes, as well as cooled elements connected to the supporting structure, in which three o-folds are made, offset from each other by 120 °, for insertion of electrodes C1 3.
    The disadvantage of this crush is that high temperatures occur in the center of the crust, causing different thermal expansion, as a result of which the lid's service life is not always satisfactory.
    The aim of the invention is to increase the service life of the cover.
    The goal is achieved by the fact that in a water-cooled lid for metallurgical vessels, there is a water-cooled tubular support structure consisting of an outer marator ring, an inner mantle ring and radial water-cooled pipes connecting them, and also cooled elements connected to the supporting structure, while the lid has three holes for insertion of the electrodes, offset 120 ° relative to each other, the inner Marathrin ring is made of a composite of elements that represent Each of the incomplete circles and surrounding holes for the introduction of electrodes, while the elements are interconnected with gauges made convex toward the center of the cover.
    The elements of the inner marator ring and the joints connecting them are surrounded on the outside by at least one cooling tube.
    In the center between the knees there is a hole into which a circular element is inserted, consisting of cooling tubes. The circular element consists of vertically arranged pipes connected by caps to a meander cooling system with water. The holes for the electrodes are lined with refractory material.
    According to the invention, it is advantageous to place at least one cooling tube on the outside of the inner maratory ring. Adjacent to the electrode insertion holes, the center portion of the cover can be opened or closed; in any way. To allow flue gases to escape, in the center between the knees there is a hole into which a circular element is inserted, consisting of cooling tubes. This circular element may have vertical pipes integrated through caps into a meander water cooling system. The holes for the electrode are further provided with a refractory lining.
    The advantages of this device are that there is practically no effort due to various thermal expansion, and it is also possible to prevent high temperatures in the center of the lid. The special feature of the device is that the water cooling system is not violated, it is necessary for effective cooling of the Marat rings and supporting elements, as well as the system for connecting the cooling elements to the Marat rings or to the supporting elements. Due to this, the cover is sufficiently efficiently cooled with water.
    FIG. 1 shows a water-cooled lid for metallurgical vessels, top view, FIG. 2, section A-A in FIG. 1J in FIG. 3 embodiment of water-cooled crucible for metallurgical vessels.
    The water-cooled lid consists of a supporting structure that includes an outer marator ring 1 and. an inner marator ring 2, radial bearing elements 3 connecting them, as well as a number of cooled elements 4. Marat rings 1 and 2 and bearing elements 3 are made in the form of tubes through which cooling water flows. The cooling elements 4 are connected to the supporting structure. In the zone of the center of Krsch, there are three holes 5 that are displaced relative to each other by 10 ° to introduce the electrodes. Preferably, the inner mating ring is surrounded by holes 5 for insertion of the electrodes around the incomplete circumference by elements 6. Elements 6 are interconnected by bends 7 which are convex toward the center of the lid. Thus, the structure has the form of a three-leaf clover. The elements 6 and the knees can be surrounded on the outer side by two cooling tubes 8 (Fig. 3), and in the outer marator ring 1 the cooling tubes 9 can be located on the inner side.
    .
    According to FIG. 1 and 2 in the center between the knees 7, a hole 10 is made; this hole is inserted into a circular element 11 consisting of cooling pipes 12. Hole 11 can serve to remove smoke or silt for other purposes. The circular element consists of vertical cooling tubes 12 connected by caps 13 into a square-water cooling system. The holes 5 for the electrodes can be provided with a fire resistant lining (not shown).
    权利要求:
    Claims (5)
    [1]
    1. A WATER-COOLED COVER FOR METALLURGICAL VESSELS, comprising a water-cooled tubular load-bearing structure consisting of an external marator ring, an internal marator ring and radial water-cooled pipes connecting them, as well as cooled elements connected to the load-bearing structure, three openings are provided for this the introduction of the electrodes, offset relative to each other by 120 °, characterized in that, in order to increase the service life of the lid, the inner marator ring is made of composite elements, edstavlyayuschih are each 'incomplete circumference and covering openings for administration of electrodes, wherein the elements are interconnected by bends, you are a (5 complements convex towards the center of the lid.
    FIG)
    [2]
    2. A cover according to claim ^, characterized in that the elements of the inner 1 marator ring and the elbows connecting them are surrounded on the outside by at least one cooling pipe,
    [3]
    3. The cover according to paragraphs. 1 and 2, characterized in that, in the center between the knees a hole is made into which a circular ele- ment is inserted - I 1 ment, consisting of; cooling pipes.
    [4]
    4. Cover pop. 3, characterized in that the circular element consists of vertically arranged pipes connected by caps in a meander water cooling system.
    [5]
    5. The cover according to paragraphs. 1-4, characterized in that the holes for the electrodes are lined with refractory material.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1093261A3|1984-05-15|Water chilled cover for metallurgical vessels
    US3346042A|1967-10-10|Radiation recuperator
    US4335076A|1982-06-15|Converter for converting sulfur dioxide to sulfur trioxide
    US4169431A|1979-10-02|Boiler
    US3189086A|1965-06-15|Heat exchanger with concentric flow passageways
    US4959078A|1990-09-25|Hot-gas cooling plant
    SU1194294A3|1985-11-23|Water-cooled hood cover for electric furnace with three electrodes
    US3963223A|1976-06-15|Metallurgical vessel, in particular a converter
    CA1191680A|1985-08-13|Liquid-cooled lance for blowing oxygen onto a steelbath
    US4611791A|1986-09-16|Diffuser system for annealing furnace with water cooled base
    US4755236A|1988-07-05|Method of annealing using diffuser system for annealing furnace with water cooled base
    US5289495A|1994-02-22|Coolant coils for a smelting furnace roof
    US4433722A|1984-02-28|Heat exchanger having pipe coils supported in support plates
    US853698A|1907-05-14|Stack-furnace construction.
    WO1997013598A3|1997-08-14|Vessel for metallurgical purposes
    US4371970A|1983-02-01|Dome for electric arc furnace
    KR850001995A|1985-04-10|Arc furnace electrode
    CA1172829A|1984-08-21|Converter
    US4367867A|1983-01-11|Cooling support elements for metallurgical furnace
    US4278242A|1981-07-14|Bell-type coil annealing furnace inner cover
    CA1172830A|1984-08-21|Converter
    US4128232A|1978-12-05|Cooling assembly for metallurgical vessels
    US4278241A|1981-07-14|Top cone cooling system for basic oxygen furnace
    KR910010112A|1991-06-28|Fireproof Vertical Conduit for Boiler
    US6638471B1|2003-10-28|Water cooled vessel for vacuum processing liquid steel
    同族专利:
    公开号 | 公开日
    FR2517421A1|1983-06-03|
    AU9018082A|1983-06-02|
    GB2110801B|1985-03-20|
    US4425656A|1984-01-10|
    GB2110801A|1983-06-22|
    FR2517421B1|1986-01-03|
    SE8206762L|1983-05-29|
    DE3147338A1|1983-06-09|
    SE8206762D0|1982-11-26|
    BR8206845A|1983-10-04|
    CA1208007A|1986-07-22|
    AR228207A1|1983-01-31|
    DE3147338C2|1985-02-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2648714A|1950-04-01|1953-08-11|American Cyanamid Co|Hood for electric furnace|
    GB694940A|1951-05-24|1953-07-29|Electric Furnace Prod Co|Improvement in electric reduction furnace|
    US3429973A|1965-09-02|1969-02-25|Frederick H N Carter|Furnace construction|
    DE2817869C3|1978-04-24|1983-04-07|Krupp Stahl Ag, 4630 Bochum|Lid for an electric arc furnace|
    DE2917755A1|1979-05-02|1980-11-13|Sidepal Sa|Water cooled roof for arc furnace etc. - is made using ring tubes from which water flows through circular row of separate cooling elements|US4545058A|1983-12-15|1985-10-01|Amsted Industries Incorporated|Electric furnace refractory roof form|
    DE3400186C2|1984-01-02|1987-01-08|Mannesmann Ag, 4000 Duesseldorf, De|
    DE3927928C2|1989-08-24|1991-11-21|Man Gutehoffnungshuette Ag, 4200 Oberhausen, De|
    US5241559A|1992-03-30|1993-08-31|Emc International, Inc.|Electric arc furnace roof|
    US5289495A|1992-08-17|1994-02-22|J. T. Cullen Co., Inc.|Coolant coils for a smelting furnace roof|
    US5999558A|1998-08-13|1999-12-07|Ucar Carbon Technology Corporation|Integral spray cooled furnace roof and fume elbow|
    US10488114B1|2015-06-09|2019-11-26|Materion Corporation|Fluid-cooled copper lid for arc furnace|
    JP2020514662A|2017-01-30|2020-05-21|アメリファブ，インコーポレイテッド|Top cover and system for electric arc furnace, metallurgical furnace or refining furnace|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3147338A|DE3147338C2|1981-11-28|1981-11-28|Water-cooled lid for metallurgical vessels|
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