• 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 process and apparatus for starting a continuous casting plant, which involves the filling of the empty area over the dummy bar of an ingot mold to the desired filling level, is simplified while achieving improved operating safety. To this end, a controllable spout closure, which is completely open during the starting of the casting of the molten metal into a tundish, is brought into a predetermined throttle position by the actual filling level rising in the ingot mold to a first signal level and thereafter the further rise of the actual filling level is monitored and controlled, if necessary, in accordance with a second signal level of a predetermined characteristic time curve by logically changing the throttle position of the spout closure. It is thereby possible to control the actual filling level rising in the ingot mold so as to reach its desired filling level without undue risk.
    公开号:SU1528335A3
    申请号:SU854003598
    申请日:1985-12-27
    公开日:1989-12-07
    发明作者:Тиннес Бернхард；Кройцберг Хайнц
    申请人:Метакон Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the automation of the process of continuous casting of metal.
    The purpose of the invention is to increase productivity,
    FIG. 1 is a schematic diagram of a continuous casting installation; FIG. 2 shows an example of installation of a temperature meter; in fig. 3 - installation launch diagram; FIG. 4 is an example of a diagram of a startup program.
    The steel tank from the intermediate tank 1 through an adjustable drain gate formed in the form of the slide gate 2 and the casting pipe connected to it with 3 doses is fed into the water-cooled mold 4. For this, the slide plate 5 of the gate 2 is mechanically stably connected to the polite. by the pulling body 6, the working position of which is recorded by the position gauge 7. Free end
    the casting tube 3 enters the mold 4, the required filling level 8 of which within the measuring segment 9 is controlled by means of a measuring device consisting of a rod radiator 10 and counter I1. Below in the mold 4 at a distance from each other vertically, measurement points 12 and 13 are provided at which the sensitive elements of the temperature sensor 14 are built in the wall of the mold 4 with the possibility of replacement, consisting of a thermoelement 15 - preferably an electrical thermistor with a positive temperature coefficient , sleeves 16, nipple 17 and electrical communication unit 18,.
    In the crystallizer 4, there are successively connected a secondary cooling stage (not shown) and a level 19 release of zagggovok.

    C / 1
    which includes the seed 20, the friction rollers 21 and their drive 22, as well as the drive controller 23 and the tachometer 24. The latter transmits the measured parameter to the drive controller 23 and the control computer 25, which also receives measurement results from the position meter 7 controlling the degree of opening of the sliding gate 2, and the counter 1 1, as well as from measurement points 12 and 13, processes them and: determines the command signal to the executive body 6 of the sliding gate 2 and the drive controller 23. The billet release rate here is kept constant, which allows a given level of 8 melt above the seed 20 in the mold 4 to be adjusted only from the pouring side using a sliding gate 2. If necessary, if it is necessary to establish such process conditions that cannot be achieved by adjusting the gate valve 2 can also affect the speed of production of blanks using the controller 23,
    Fig. 3 shows a setup start-up chart for manufacturing workpieces with dimensions 230i 230 mm. At the beginning of the wiring, seed 20 is fed, release driver 22 is turned off, and gate valve 2 is brought to the fully open position. As a result, instantaneous level 26 is formed above seed 20, which quickly rises to the level of the signal plane with a measuring point of 12, and with it the sliding gate 2 begins to move to the throttle position. As a consequence, the rate of rise of level 26 is reduced in accordance with the time characteristic 27 set by the control computer 25 until the lower signal plane 28 of the measuring segment 9 is reached. Here, the starting point 19 of the workpiece release is started (point 29) and the normal casting process is recorded at the same time shuntra 2 in working position to control the set level
    it is 8 within the measuring segment 9, the preset level 8 is reached after 30 seconds, while the start of the drive 22 is attempted (point 29)
    five
    0
    five
    Q
    thirty
    35
    40
    45
    50
    55
    occurs after 20 s and decrease. the speed of the rise of the actual level 26 begins already after 5 s. At the same time, the characteristic points 29 and 12 lie at a height of 81% and 35% of the area formed in the mold 4 above the seed 20 and taken as 100%.
    To monitor the temporal characteristic 27, a signal plane with a measuring point 13 is used, at which both the early rise of the actual level 26 and its too late rise are monitored. If time deviations are recorded, for example tF or tS, then executive unit 6 slide gate 2 is reported to adjust the installation movements,
    In installations with a smaller cross-section of the blanks, due to better hardening of the products in the mold 4, the launch can be performed in a shorter period (Fig. 4). The oscillations of a given level 8 end in 20 seconds. In this case, the drive 22 of the workpiece discharge stage to the start position (point 29) is driven before the actual level 26 reaches the lower signal plane 28 of the measuring segment 9. This becomes possible as a result of the presence of a measuring point 30 in which, just like at points 12 and 13 metering, there is a sensing element of the temperature sensor 14.
    The task of preventing the melt from solidifying in the bore hole is that when the melt is poured into the intermediate tank, the fully open drain gate from the actual level rising in the crystallizer to the first signal plane is brought to the first throttle position to control the further rise of the actual level to obtain the level of signals from the second signal plane when turning on the stage of production of blanks. Due to this, smooth and precise adjustment of the predetermined level is possible, while in a relatively short time, the billet is already prepared and the temperature of the drain gate is quite well balanced with the temperature of the working process due to the fact that there is
    /
    sufficient melt flow rate. As a result, damage to the workpieces associated with tearing-off blocking of the drain valve when the melt solidifies is prevented and prerequisites are created for an optimal starting mode.
    The throttle position of the drain gate and the actual level rise associated with it, as well as the moment of switching on the release of blanks, are essentially a function of the process of obtaining blanks in the mold and heating the slide gate depending on the cross section of the blank and the physical properties of the melt. According to this, for the workpieces of each size is established its own
    however, the degree of opening of the gate is 5-30% of the degree of its full opening, if the molds are intended for billets and small ingots, and 15-50%, if the molds are intended for large ingots or slabs. With this range of action, blanks of the most commonly used sizes can be produced.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    The method of controlling the launch of the continuous casting of metal mainly from the casting ladle through an intermediate bucket with an adjustable drain valve in the crystal
    thirty
    The time period for the stages of the process, when -20, includes a full opening of the boundary criterion, the maximum possible time during which the drain valve is fully open, and the overflow of the mold.
    With an open casting, the speed of raising the actual level to a predetermined distance on the measuring segment is adjusted according to a certain time characteristic by the positions of the throttles of the drain gate, the second signal plane for switching on the release of blanks lies on this time characteristic or in the region of the measuring segment of a given level,
    After turning on the release of products, the adjustable release rate affects the course of the temporal characteristic, which creates wide liaison,
    The throttle positions of the drain valve change when the level reaches 25-65% in the mold, and
    the intermediate trench bucket at the beginning of casting, measuring the metal level in the mold, changing the opening degree of the drain gate 25 when the metal level in the crystallizer reaches the first technology-specified value and starts drawing the ingot at a given speed when the metal level in the crystallizer reaches the second technology value, and the second technology-specified level is located above the first technology-specified level, characterized in that, with the aim of raising completely, the drain valve is fully opened before the metal is fed from the casting ladle to the tundish, and the rate of change of the level of 35
    Opportunities for ragu - Q tall in the crystallizer between two
    The levels specified by the technology are maintained in accordance with the programmed value of the degree of opening of the drain gate.
    the lyser, including a full open
    trenching the tundish at the beginning of casting, measuring the metal level in the mold, changing the opening degree of the drain when the metal level in the crystallizer reaches the first technology-specified value and starts the ingot extrusion at a given speed when the metal level in the crystallizer reaches the second specified by the technology value, and the second technology-specified level is located above the first technology-specified level, which is different from the fact that, in order to increase the NOSTA, the drain valve is fully opened to supply azlivochnogo metal from a ladle to a tundish, and the rate of change of level IU
    FIG. g
    )P
    II
    FIG.
    -t-yu%
    5 10 15 20 25
    FIG.
    S 15 20 25 30
    FIG.
    thirty
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    同族专利:
    公开号 | 公开日
    PL147083B1|1989-04-29|
    IN165386B|1989-10-07|
    ZA861927B|1986-10-29|
    SE463247B|1990-10-29|
    IT1186231B|1987-11-18|
    IT8523087D0|1985-12-04|
    JPH0741380B2|1995-05-10|
    DE3509932A1|1986-10-02|
    FR2579120B1|1989-03-10|
    ES551692A0|1986-12-16|
    AT389257B|1989-11-10|
    GB8606318D0|1986-04-23|
    DE3509932C2|1988-04-14|
    FR2579120A1|1986-09-26|
    GB2172532B|1988-03-02|
    PL257653A1|1986-10-07|
    BE904428A|1986-09-17|
    MX163421B|1992-05-12|
    ATA73086A|1989-04-15|
    CA1267520A|1990-04-10|
    SE8601241L|1986-09-20|
    JPS61219457A|1986-09-29|
    GB2172532A|1986-09-24|
    ES8702190A1|1986-12-16|
    US4770230A|1988-09-13|
    CH671535A5|1989-09-15|
    SE8601241D0|1986-03-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CA949670A|1970-11-12|1974-06-18|Clarence E. Babcock|Temperature sensor for liquid level detection|
    US3745828A|1972-02-09|1973-07-17|United States Steel Corp|Temperature sensing device for continuouscasting molds|
    SU551108A1|1975-08-13|1977-03-25|Институт Автоматики|Automatic start control device for continuous casting machine|
    DE3211787C2|1981-03-30|1992-02-06|Zimmermann & Jansen Gmbh, 5160 Dueren, De|
    JPS5935709B2|1980-05-27|1984-08-30|Saginomya Seisakusho Kk|
    US4567935A|1981-05-26|1986-02-04|Kaiser Aluminum & Chemical Corporation|Molten metal level control in continuous casting|
    JPS6260189B2|1981-07-09|1987-12-15|Nippon Steel Corp|
    SU1006050A1|1981-07-14|1983-03-23|Киевский институт автоматики им.ХХУ съезда КПСС|Apparatus for measuring melt level in continuous casting mould|
    DE3135048A1|1981-09-04|1983-03-31|SMS Schloemann-Siemag AG, 4000 Düsseldorf|Control system for the level of the molten metal in continuous casting moulds|
    JPS6321586B2|1981-11-13|1988-05-07|Kawasaki Steel Co|
    DE3221708C1|1982-06-09|1991-06-13|Brown, Boveri & Cie Ag, 6800 Mannheim|Process and apparatus for filling a continuous casting mould while casting a strand|
    SU1060300A1|1982-07-30|1983-12-15|Предприятие П/Я Р-6760|Method of continuous casting|
    JPS5942590A|1982-09-01|1984-03-09|Matsushita Electric Ind Co Ltd|Light emitting diode driving circuit|
    CH659783A5|1983-03-29|1987-02-27|Metacon Ag|METHOD AND DEVICE FOR CONTROLLING A CONTINUOUS CASTING SYSTEM.|
    DE3432611C2|1984-09-05|1986-09-04|Metacon AG, Zürich|Procedure for starting up a continuous caster with several strands|LU85878A1|1985-05-07|1986-12-05|Arbed|METHOD FOR AUTOMATICALLY CONTROLLING THE START-UP OF A METAL CONTINUOUS CASTING SYSTEM|
    DE3679950D1|1985-09-02|1991-08-01|Nippon Steel Corp|METHOD FOR REGULATING THE INITIAL STAGE IN CONTINUOUS CASTING.|
    JPH0251699B2|1985-09-02|1990-11-08|Nippon Steel Corp|
    DE3608503C2|1986-03-14|1994-09-01|Stopinc Ag|Process for automatically casting a strand of a continuous caster|
    DE3742215C2|1987-12-12|1991-07-04|Metacon Ag, Zuerich, Ch|
    DE3801932A1|1988-01-23|1989-08-03|Schloemann Siemag Ag|METHOD FOR CASTING A STEEL STRIP IN A STEEL STRIP CASTING SYSTEM|
    AT74544T|1988-08-31|1992-04-15|Metacon Ag|METHOD FOR CONTROLLING SLIDING CLOSURES, IN PARTICULAR ON CONTINUOUS CASTING PLANTS.|
    EP0356551B1|1988-08-31|1992-03-25|Metacon AG|Set of ceramic plates for sliding gate valves comprising three sliding plates|
    FR2639267B1|1988-11-23|1991-02-22|Clecim Sa|PROCESS AND ASSEMBLY FOR SUPPLYING MOLTEN METAL TO THE LINGOTIERE OF A CONTINUOUS CASTING INSTALLATION OF THIN BLANKS|
    CH682376A5|1990-02-28|1993-09-15|Stopinc Ag|A method for automatic casting of a continuous casting plant.|
    FR2693136A1|1992-07-03|1994-01-07|Lorraine Laminage|Device for introducing a thermocouple into a wall - is incorporated into internal walls of mould of continuous casting machine|
    GB2311947A|1996-03-12|1997-10-15|Flogates Ltd|Sliding gate valve|
    FR2766113B1|1997-07-16|1999-09-17|Usinor|METHOD FOR STARTING A CONTINUOUS CASTING OF METALS|
    ITMI20010958A1|2001-05-10|2002-11-11|Ori Martin Acciaieria E Ferrer|PROCEDURE AND DEVICE FOR THE CONTROL OF THE LEVEL OF THE STEEL IN CONTINUOUS CASTING IN LINGOTTERY|
    JP2006528070A|2003-07-22|2006-12-14|ベスビウスグループソシエテアノニム|How to decide whether to reuse or dispose of fire plates and fire equipment|
    US9964498B2|2015-09-11|2018-05-08|Baylor University|Electromagnetic steam energy/quality, flow, and fluid property sensor and method|
    CN108620547B|2018-04-19|2020-04-17|芜湖新兴铸管有限责任公司|Continuous casting method|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3509932A|DE3509932C2|1985-03-19|1985-03-19|
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