• 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:
    1. A TRAY FOR METAL MELT containing a hollow trough-shaped metal casing with a refractory lining and with nodes for supplying and discharging refrigerant, characterized in that, in order to improve the life of the tray, the cavity of the metal casing is provided with longitudinal ribs that divide it into separate segments and connected at one end with the unit supplying the refrigerant, made in the form of distribution capacity. 2. A tray according to claim 1, characterized in that the metal casing is provided with a profile frame supported on the foundation through rollers, the rollers being made of two parts with a peripheral groove and provided with a guide bar fixed in the groove fixed on the foundation. O) x X V h X V ll: Sc. | u h h I X / X /: ± i 7 ,, ./ / B 19 9 CO CX) о со к (.r
    公开号:SU1138037A3
    申请号:SU823398518
    申请日:1982-03-03
    公开日:1985-01-30
    发明作者:Фордервинклер Макс；Миттер Герхард；Мюлльнер Пауль
    申请人:Фоест-Альпине Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a metal melt chute, in particular an exhaust chute, a domain for the production of cast iron with a metal trough-shaped casing, in which a refractory lining for the metal melt is provided. The release of liquid iron and slag from the blast furnace occurs periodically at regular intervals. At the same time, cast iron and slags must be supplied separately for transportation from the area of the furnace to the transport vessels prepared for this. The separation of iron and slag takes place in the main outlet tray, from which it is transferred to its own iron tray and to its own slag tray. Recently, large-section discharge trays have been used, in which the cast iron also remains for a time between releases. Such trays have a longer service life than trays that are emptied taller than each release. Due to the different expansion of the metal casing and the refractory lining in trays for metal melts, especially in trays with a large cross section, cracks appear in the refractory lining. These cracks often spread not only through a replaceable lining, when they change as they wear out, as a rule, they are eliminated, but also through the main permanent lining to the sheet metal casing. Such cracks form weak spots in the tray, because when filling these cracks with liquid cast iron (called slit leakage) can lead to breakthroughs of the cast iron when sheet steel casing melts through this place. Cast iron chippers not only cause significant damage to the trays and the site design, but also reduce the possibility of using a blast furnace. The service personnel is endangered. The cost of time and money for repair after the breakthrough of cast iron, caused by a gap in the leg, is significant. In order to avoid the occurrence of slits in the fluxes, the sheet metal shells are made of extremely thick lining trays. This leads to very high lining costs. Closest to the invention to the technical essence is a tray for a metal melt containing a hollow trough-shaped metal casing with a refractory lining and with nodes for supplying and discharging refrigerant L. A disadvantage of the known device is that the lining of the tray from the end sides is fixedly fixed in the construction of the platform. In addition, the tray consists of two parts, which are sealed with a locking lining compound, which increases the likelihood of the iron to break through. The purpose of the invention is to increase the life of the tray. The goal is achieved by the fact that in a tray containing a hollow trough-shaped metal casing with a refractory lining and with nodes for supplying and discharging refrigerant, the cavity of the metal casing is provided with longitudinal ribs dividing it into separate segments and connected at one end to the refrigerant supply unit made in the form of distribution capacity. The metal casing is fitted with a profile frame supported by a foundation through rollers, the rollers being made of two parts with a peripheral groove and provided with a guide bar placed in the groove fixed to the foundation., FIG. 1 shows the proposed metal melt tray with fastening in the area of the cast-iron mark, a longitudinal section; in Fig.2 the same, with fastening in the opposite end, a longitudinal section; in fig. 3 shows section A-A in FIG. 1 and 2; in fig. 4 is a view B in FIG. 3; in fig. 5 is a perspective view of a casing of a tray made of sheet metal, a partial section. The tray includes a casing of 1 blast furnace; iron notch 2, discharge chute 3, metal casing 4, inner shell 5, outer shell 6, cavities 7, permanent lining 8, fast-wearing lining 9, flow inhibitor limiter 10, outlet 11, slot 12, elevated level 13 , fastener 14 in the area of the cast-iron notch 2, fastener 15 at the opposite end, base 16 for the tray, base 17, stiffening ribs 18, welded profile frames 19, protruding parts 20 of the profile frame 19, holder 21, rails 22, running surfaces 23, rollers 24 with groove 25, guide bars 26, pressure head 27, which is divided into two pipes 28 and 29, the left junction box 30 and the right junction box 31 discharge pipes 32 and 33 of the bottom segments, discharge pipes 34 39 of wall segments, control valves 40-47, recess 48. All parts and the nodes of the metal melt tray are interconnected in the following manner. The chute 3 adjoins the cast-iron notch 2 in the casing of 1 blast furnace. This chute 3 has a metal casing 4 made of sheet steel, a constant lining 8 and a fast-wearing lining 9. In the lower part of the tray, in the flow direction of the iron, a restraining flow restrictor 10 is placed, passing through the entire discharge section of the chute 3. This slows down a limiter. Which serves to separate the iron and slag, the slag floating on the iron is retained and through the outlet 11, located above the limiter 10, is discharged into the slag chute. The chusun flows through the slit 12 located between the braking stop 10 and the bottom of the chute 3, and rises to level 13. Through the raised level 13, the cast iron is retracted into the cast iron groove. The metal casing 4 is connected to the site structure either through the fastener 14 in the area of the cast-iron notch 2, or through the fastener 1-5 at the opposite end, in the region of the braking restrictor 10. The tray is mounted on the base 16, which is on the casting platform. The metal casing 4 consists of a two-wall welded sheet structure, namely from the inner shell 5 and the outer shell 6. Both shells are interconnected by stiffening ribs 18 installed in the longitudinal direction. From the outside, the metal casing 4 is held by approximately 700 mm welded profiled frames 19, which have protruding portions 20 at the upper edge. The outer ends of the protruding portions 20 are interconnected by a longitudinally extending holder 21. Subsoles protruding on the floor of the platform The 17 bases 16 carry the rails 22. Between these rails and 21 supporting surfaces fixed on the bottom edge of the holder 23, the channel 3 is supported on both sides in the area of each profile frame 19 through the rollers 24. For In order to achieve parallel driving of the rollers 24, a groove 25 is cut in the middle of each roller 24. A guide bar 26 fixed on the rail 22 enters this groove 25. To limit the movement path of the rollers 24, the guide bars 26 have elevations in both brake shoes. Through the cavity 7 enclosed between the inner shell 5 and the outer shell 6 of the metal casing 4, a cooling medium is passed through, which absorbs and removes the heat generated by the tray. The use of air is preferred as a cooled medium. When air is applied, the latter is supplied to the metal casing 4 through pressure pipes 27 by means of several fans, of which at least one serves as a standby one. The pressure pipe 27, before being connected to the metal casing 4, is divided into two pipes 28 and 29, which feed the left junction box 30 and the right junction box 31 through elastic intermediate elements. Each of these junction boxes supplies half of the tray with cooling air. Placed between the outer shell 6 and the inner shell 5 stiffening ribs 18 serve simultaneously as guides (their sheet air and for separating the metal casing 4 into independently supplied cooling segments). In each half of the metal casing 4 there are one bottom and three wall segments, the discharge pipes of which are designated as 32 and 33 for the bottom segments and as 34-39 for (gtyovyh segments. By adjusting the control valves 40-47, you can get the amount of air, Piped through pipes 27,28 and 29 and junction boxes of 30 m 31, depending on the need, in different segments. Control valves are controlled by measuring the temperature in individual cooling segments. In the tray, the area around the tap holes is also cooled by air 2, namely an embrasure 48. The possibilities of the invention are not exhausted by the installation shown in Fig. 5, since there are numerous variations in the installation and distribution of the cooling segments. The metal casing 4 may be provided with semicircular tubes from the outside, i.e. pipes with a semicircular or other profile, these pipes being closely (one next to the other) welded to the metal casing 4. These pipes then form together with the casing a cavity through which the flow of cooling medium passes. The advantage of the invention is that the metal as a result of cooling, the jacket lengthens somewhat less than the refractory lining, and it is under constant compressive force. Therefore, no gaps can form into which cast iron could penetrate, and the lining can be made with relatively thin walls. Its lifespan, despite its small wall thickness, ranges from five to eight times the life of a regular tray. If until now it was necessary to resume laying after the release of 40,000 to 50,000 tons of pig iron, then on the proposed tray the restoration work should be carried out only after the release of 250,000 to 320,000 tons of pig iron.
    11 10
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    FIG. four"
    权利要求:
    Claims (2)
    [1]
    1. TRAY FOR METAL MELT, containing a hollow trough-like metal casing with refractory lining and with units for supplying and discharging refrigerant, characterized in that, in order to increase the service life of the tray, the cavity of the metal casing is provided with longitudinal ribs dividing it into separate segments and connected at one end with a refrigerant supply unit made in the form of a distribution tank.
    [2]
    2. Tray pop. 1, characterized in that the metal casing is provided with a profile frame supported on the foundation through the rollers, the rollers being made of two parts with a peripheral groove and provided with a guide bar mounted in the groove fixed to the foundation.
    t and .n J 138037 figure 1
    1 1138037
    类似技术:
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    SU1113413A1|1984-09-15|Apparatus for cooling furnace wall
    FI67416C|1985-03-11|LOEPRAENNA TILL SODAPANNA
    同族专利:
    公开号 | 公开日
    DE3260426D1|1984-08-30|
    ATA100281A|1982-07-15|
    JPS6121283B2|1986-05-26|
    EP0060239B1|1984-07-25|
    AT370133B|1983-03-10|
    ZA82913B|1983-01-26|
    JPS57158306A|1982-09-30|
    CA1194695A|1985-10-08|
    EP0060239A1|1982-09-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB773272A|1954-07-29|1957-04-24|Kaiser Aluminium Chem Corp|Improvements in or relating to molten metal transfer troughs|
    DE1244213B|1964-07-11|1967-07-13|Babcock & Wilcox Dampfkessel|Slag discharge device for slag refining plants|
    DE2428590A1|1974-06-10|1975-12-18|Hassanzadeh M Reza Dipl Ing|Blast furnace slag spout made from water-cooled metal pipe - so layer of solidified slag acts as spout lining|
    JPS5745289B2|1977-08-17|1982-09-27|LU84042A1|1982-03-26|1983-11-17|Arbed|CASTING RIGOLE FOR LIQUID METALS|
    DE3339135A1|1983-10-28|1985-05-09|Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH|ROLLER GUTTER FOR A SHAFT|
    NL8803103A|1988-12-19|1990-07-16|Hoogovens Groep Bv|IRON GUT.|
    NL8901556A|1989-06-21|1991-01-16|Hoogovens Groep Bv|IRON GUT.|
    US5088695A|1991-03-05|1992-02-18|Hoogovens Groep Bv|Iron runner|
    NL1003885C2|1996-08-27|1998-03-03|Hoogovens Tech Services|Gutter for a hot melt and gutter system.|
    NL1007881C2|1997-12-23|1999-06-24|Hoogovens Tech Services|Gutter for conducting a flow of liquid metal.|
    JP5705582B2|2011-02-23|2015-04-22|新日鉄住金エンジニアリング株式会社|How to cool firewood and firewood|
    CA2876518C|2012-06-14|2017-03-28|Les Produits Industriels De Haute Temperature Pyrotek Inc.|Receptacle for handling molten metal, casting assembly and manufacturing method|
    CN102827979B|2012-09-25|2014-07-09|莱芜钢铁集团有限公司|Blast furnace slag trough and sealing structure thereof|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    AT0100281A|AT370133B|1981-03-04|1981-03-04|GUTTER FOR A METAL MELT|
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