• 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:
    ELECTRODE ARROW ELECTROPESTER, containing a hollow fluid-cooled housing and electrode suspension assembly, made of at least one clamping and one guide element, whose cross sections have a wedge-shaped interface, characterized in that, in order to increase the service life of the electrode, the suspension assembly Equipped with an axial movement mechanism. SO with
    公开号:SU1093266A3
    申请号:SU813360407
    申请日:1981-12-02
    公开日:1984-05-15
    发明作者:Целлнер Дитер；Конрадти Клаудио；Риттманн Фридрих
    申请人:Арк Текнолоджиз Системз Лтд, Каймановы Острова (Фирма)；
    IPC主号:
    专利说明:

    f so y F
    A) The invention relates to electrothermal conditions, in particular to devices for fastening electrodes of an electric arc furnace. The electrode holder of the electric arc furnace is known, which contains a water-cooled housing and an element that fixes the upper end of the electrode, which is in the form of a G13 collet mechanism. The disadvantages of this device are the complexity of the design, since the upper end of the electrode must be equipped with a specially made coupling element, and the reliability of the holder is low. The closest to the technical essence of the invention is the electrode holder of an electric arc furnace containing a hollow fluid cooled body and an electrode suspension assembly, either high or low.
    filled with at least one clamping and one guide element, whose cross sections have a mating wedge-shaped form 23.
    A disadvantage of the known holder is the low reliability of the clamping of the electrode, which adversely affects the service life of the electrode. Insufficient reliability due to the weakening of the degree of clamping due to various kinds of load during the operation of the electrode.
    The purpose of the invention is to increase the life of the electrode.
    The goal is achieved by the fact that in the electrode holder of an electric arc furnace containing a hollow fluid-cooled housing and an electrode suspension assembly, made of at least one clamping and one guide element, whose cross sections have a wedge-shaped interface, the suspension assembly is equipped with an axial displacement mechanism .
    Figure 1 shows the holder, a longitudinal section; 2 to 7 embodiments of an electrode suspension assembly.
    The holder contains (Fig. 1) a metal case 1 provided with cooling channels 2 to which a consumable electrode 3 is attached, provided with a trunnion A. The metal case 1 contains a conductive element 5 made in the form of a pipe and is provided with an insulating coating 6. Metal case 1 and the electrode 3 are connected to each other by means of a suspension assembly 7 containing a clamp 15. A spring 17 is placed between the piston 13 and the fixed stop 16 of the cylindrical body 12. so that it is constantly not upwards the rod 15 and along with it the electrode 3 through the clamping part 8, thereby ensuring a permanent reliable connection of the upper metal casing with
    0 electrode. In addition, the metal housing 1 is provided with a fastening device 18. The metal housing 1 and the electrode 3 are connected as follows.
    The pin 4 of the electrode 3 is inserted between, at the pads of the sleeve 8, after which the relative movement between the sleeve 8 and the pipe 9 is carried out in order to press the sleeve pads against
    0 the outer surface of the pin 4 .. Then the sleeve 8 and the pipe 9 together axially
    move upward in order to make an electrical connection to the contact surface 19 of the electrode
    5 3 with the contact surface 20 of the conductive tube 5.
    The electrode of FIG. 2 differs from the electrode of FIG. 1 in that the pipe 9 itself is made of an electrically insulating material, so that it can directly adhere to the conductive pipe 5. In addition, the electrode 3 consists of two parts interconnected with screw nipple 21.
    The electrode of FIG. 3 differs from the electrode of FIG. 1 in that the pipe 9 and the conical part 10 are made in one piece. element 8, made in the form of a sleeve with a conical outer surface, and a concentric guide element 9, made in the form of a pipe, the inner surface of which is provided with a conical part 10, interacting with the conical outer surface of the clamping element 8, between the conductive element 5 and the pipe 9 located electrolysis cy-. The main layer (not shown). The clamping element 8 is connected to a mechanic-hydraulic or mechanic-pneumatic, axial and radial movement mechanism 11 comprising a cylindrical body 12 in which a movable piston 13 is mounted, connected through a pipeline 14 to a source of hydraulic pneumatic medium and to the Electrode of FIG. 4 has the following ., differences from the electrode of FIG. 1-3.
    The clamping sleeve 8 concentrically surrounds the conductive pipe 5 with the intermediate inclusion of the electrically insulating layer 22. At the lower end of the sleeve 8 there are pads 23 having inclined surfaces 24 and 25. The concentric pipe 9 has an inclined surface 26 formed in the area of the pads 24 and interacting with the inclined the surface 25. The pin 4 of the electrode 3 is formed by forming a circumferential groove 27 at its upper end, which includes inclined surfaces of 24 pads 23 ..
    The connection of the metal housing 1 with the electrode 3 is carried out in a fundamentally the same way as in the case of the electrode of FIG.
    The electrode of FIG. 5 differs from the electrode of FIG. 4 in that the conductive part of the metal body 1 is designed as a rod 28, the lower end of which passes into the contact plate 29. The conductive rod 28 is provided with a concentric protective tube 30.
    The electrode of FIG. 6 has a hydraulic clamping device 7 comprising an annular chamber 31 connected via a conduit 32 to a source for supplying a hydraulic medium (not shown). The clamping sleeve 8 is made with separate blocks, and the guide part 9 is designed as an axially moving wedge interacting with the corresponding block of the sleeve 8 when the hydraulic medium is supplied.
    The clamping device 7 (Fig. 7) contains two annular chambers 31, in which radially extending cylindrical sections are located, on which the guide part 9 is installed, designed as pistons with radially moving sliders, which clamp the clamping sleeve 8 to the trunnion 4.
    The increase in the service life of the electrode is achieved due to the fact that the clamping force loads the electrode material mainly in compression.
    It is known that the compressive strength of materials commonly used in the active part is significantly higher than the flexural and tensile strengths. Graphite, for example, has a compressive strength of about 3-3.5
    times bbmie than bending strength or tensile. After the clamping assembly seizes the upper end of the electrode, the clamping force mainly causes compressive stresses in the electrode, which makes it possible to use high compressive strength of the materials used. Based on this, sufficient may be applied to the active part; clamping force
    The proposed holder does not require, in contrast to the known ones, to equip the upper end of the electrode with a special docking device, and also the current can be supplied to the electrode directly through the current-carrying elements of the housing. To do this, it is only necessary to clamp the contact surfaces of the current-carrying elements to the upper end of the electrode. The proposed solution allows for a much more efficient npocTbiM in a way to functionally separate the current supply between the conductive elements of the rod and the active part and the clamping device for mechanically connecting both structural parts of the electrode. Due to this, simple, material-responsive properties are possible. These are both in terms of electrical connection and in terms of mechanical connection of the housing and the electrode.
    The separation of mechanical and electrical connection between the rod on one side and the active part on the other, the direct contact of the clamping device with the electrode material, in which compressive stresses result from the clamping force, presents tremendous possibilities from the point of view of the design.
    Both current-carrying and other elements of the body are cooled accordingly and protected from mechanical and thermal effects of the coating. The sliding guides used between the individual structural members may be coated with graphite and similar high temperature resistant lubricants in order to ensure good sliding conditions at high temperatures and mechanical loads. It is advisable to make these coatings from temperature-resistant ceramic materials.
    9 8
    ten
    fig.Z
    Fy
    权利要求:
    Claims (1)
    [1]
    ARC ELECTRIC ELECTRODE HOLDER, comprising a liquid-cooled hollow body and an electrode suspension assembly made of at least one clamping and one guide elements, the cross-sections of which have a mating wedge-shaped shape, characterized in that, in order to increase the electrode service life, the suspension assembly is equipped with a mechanism axial displacement.
    § ss (3>
    类似技术:
    公开号 | 公开日 | 专利标题
    EP0012573A1|1980-06-25|Electric arc furnace electrodes
    SU1093266A3|1984-05-15|Electrode holder for arc furnace
    RU1802920C|1993-03-15|D c electric arc furnace
    SE465893B|1991-11-11|UGNSKAERL FOR DRIVER DIRECT LIGHT BAGS AND BOTTLE ELECTRODE
    US6946782B1|2005-09-20|Connector system for a rod-shaped two-ended discharge lamp
    US4710607A|1987-12-01|Plasma burner with replaceable consumable electrodes
    US4513425A|1985-04-23|Composite electrode for arc furnace
    KR940001233B1|1994-02-17|Electrode for four metal electric current
    GB2089628A|1982-06-23|Electrode for arc furnaces
    US3973077A|1976-08-03|Bushing for electrical connection
    GB2037549A|1980-07-09|Arc Furnace Electrode
    US4490825A|1984-12-25|Water-cooled electrode
    US4509178A|1985-04-02|Arrangement of an electrode for electric arc furnaces
    NZ199230A|1984-09-28|Sheath for electric arc electrode
    US3835296A|1974-09-10|Improvement in industrial electric resistance heater
    US3764718A|1973-10-09|Vacuum furnace with an electric heater assembly
    CA1232632A|1988-02-09|Tubular graphite electrode capable of composite ortip use
    US4466105A|1984-08-14|Electrode for arc furnaces
    US4446561A|1984-05-01|Axially movable electrode holder for use in electric steel production
    US4509807A|1985-04-09|Sliding contact arrangement for transmitting heavy currents from and to bus bars with slide surfaces
    US4451926A|1984-05-29|Composite electrode for arc furnace
    US4417344A|1983-11-22|Composite electrode for arc furnace
    NZ198753A|1984-10-19|Arc furnace electrode:mouldings protect cooling ducts
    SU982131A1|1982-12-15|Water-cooled cable lug
    EP0079304A1|1983-05-18|Electrode holder for arc furnaces
    同族专利:
    公开号 | 公开日
    HU192078B|1987-05-28|
    PL234059A1|1982-07-19|
    DK532781A|1982-06-03|
    AU7769481A|1982-06-10|
    ES8301088A1|1982-11-16|
    US4481500A|1984-11-06|
    GR77313B|1984-09-11|
    AT22383T|1986-10-15|
    PT74061A|1981-12-01|
    NO814093L|1982-06-03|
    EP0053200B1|1986-09-17|
    CA1173482A|1984-08-28|
    KR830007888A|1983-11-07|
    IN155086B|1984-12-29|
    DD208283A5|1984-03-28|
    JPS57119493A|1982-07-24|
    KR870000098B1|1987-02-10|
    PT74061B|1983-05-11|
    GB2092418A|1982-08-11|
    AU546162B2|1985-08-15|
    NZ199015A|1985-07-12|
    ZA817978B|1982-10-27|
    FI813636L|1982-06-03|
    EP0053200A1|1982-06-09|
    TR21916A|1985-11-15|
    DE3071765D1|1986-10-23|
    YU279781A|1983-10-31|
    ES508108A0|1982-11-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE92811C|
    US824153A|1904-05-03|1906-06-26|Willson Aluminum Company|Carbon-holder for electric furnaces.|
    FR421991A|1910-10-29|1911-03-09|Henri Auguste Georges Cinille|Improvements to the electrodes of electric ovens and the means of guiding them in the walls of the ovens|
    FR480802A|1915-05-03|1916-09-28|Fr Des Electrodes Soc|Device for connecting carbon electrodes end to end|
    DE322889C|1918-07-05|1920-07-10|Siemens & Halske Akt Ges|Electrode holder for electric furnaces|
    FR628050A|1925-12-28|1927-10-17|Ig Farbenindustrie Ag|Mount for closed electric oven electrodes|
    FR877771A|1941-01-09|1942-12-16|Device for mounting electrodes for electric ovens|
    DE1120038B|1953-12-05|1961-12-21|Elektrokemisk As|Socket for continuously burning electrodes|
    DE1128581B|1957-07-26|1962-04-26|Mc Graw Edison Co|Power operated holding and feeding device for furnace electrodes|
    US3046319A|1960-01-20|1962-07-24|Allegheny Ludlum Steel|Electrode stub clamp|
    DE1440345A1|1960-12-27|1968-12-19|Deutsche Edelstahlwerke Ag|Coupling device on electric arc furnaces with self-consuming electrode|
    US3293347A|1965-10-24|1966-12-20|Consarc Corp|Electrode stub clamp|
    US3526699A|1969-03-03|1970-09-01|Lombard Corp|Apparatus for connecting ram to electrode|
    FR2176546B1|1972-03-23|1974-08-02|Siderurgie Fse Inst Rech|
    US4145564A|1978-01-30|1979-03-20|Andrew Dennie J|Non-consumable electrode with replaceable graphite tip|EP0061612B1|1981-03-24|1985-08-07|Fried. Krupp Gesellschaft mit beschränkter Haftung|High-current conductor system for electric furnaces|
    DE3319389C2|1983-05-26|1987-03-05|Mannesmann Ag, 4000 Duesseldorf, De|
    DE3620203C2|1986-06-16|1988-05-26|Riedhammer Gmbh Und Co Kg, 8500 Nuernberg, De|
    RU2230440C2|2001-02-01|2004-06-10|Хлопонин Виктор Николаевич|Electrode and method for its cooling in the course of electric furnace ope ration|
    DE102010048647A1|2010-10-15|2012-01-19|Fuchs Technology Holding Ag|Gripper for holding electrode of electric arc furnace, has several claws engaged with claw engaging element at engagement position in which distance between free end and longitudinal axis of base is larger than half of element diameter|
    KR101293870B1|2012-04-27|2013-08-07|강성인|Dc arc furnace for melting mineral|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    EP80107523A|EP0053200B1|1980-12-02|1980-12-02|Arc furnaces electrode|
    [返回顶部]