• 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:
    In the edge replacement (23) of the sliding plate (5) of a sliding gate valve (3) which regulates the desired level (14) in a mould (9) from a throttling position (D1 or D2) to an opposite throttling position on the outflow channel (7), at least the throttling position (D1 or D2) to be taken up after an edge replacement (23) is dependent upon a discharge control preprogrammed in the processor (20) of the level regulator, in order to counteract relatively large variations in bath level in the mould (9). …<IMAGE>…
    公开号:SU1739839A3
    申请号:SU894614847
    申请日:1989-08-30
    公开日:1992-06-07
    发明作者:Чеккини Сильвио；Феттерли Вальтер
    申请人:Метакон Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the field of continuous casting of metal and is intended to regulate a three-plate gate valve, with which the metal level in the mold is controlled.
    The purpose of the invention - an increase of tenderness HA I work slide gate.
    Fig. 1 schematically shows a continuous casting unit equipped with a slide gate with a circuit diagram of the blocks of a control device for controlling the level of filling; in Fig.2 - the opening position of the slide gate on an enlarged scale; in Figs. 3 and 4, the throttling positions of the slide gate; in FIG. 5-7 are control characteristics for three different methods for adjusting the slide gate; on Fig, 8 is a characteristic of the level of filling related to the characteristic of regulation in accordance with Fig.6. The intermediate tank 1 contains a metal melt with a slide gate 2 located at the outlet 3. The shutter 2 has a fixed input disk 4, an adjustable slide disk 5 and a fixed output disk 6, through holes of which form a channel for the passage of flow 7, the cross section of which can to change due to the movement of the disk 5 to regulate the amount of melt that flows from the tank 1 through a casting pipe 8 inserted into the mold 9. To move the disk 5 is used first element 10, or that the operating position of which is identified by a 11 meter position, the t
    The emitter 12 and the receiver 13 controls the level of the melt 14 in the mold 9, the melt solidifies in the mold and the ingot 15 is drawn using drive rollers 16 of the drive 17 for drawing. The speed meter 18 of the roller 16 is connected to a speed controller 19.
    In accordance with the scheme, the speed meter 18 outputs its data simultaneously to the processor 20, which also receives and processes the data of the position meter 11 of the I and receiver 13. Regulating commands, the processor 20 transmits to the installation element of the slide gate 3 and to the ingot pull speed controller 19 15, The pulling speed of the ingot 15 during the normal casting process is constant, which means that the proper level 14 of filling the mold 9 is regulated only from the inflow side by means of a slide gate 3. For this purpose, di ck 5 takes, for example, the throttling position D1 (Fig. 3), which allows for regulatory operations in the direction of opening and closing with
    U of the throttling edge K1 in order to maintain a balance between the amount of melt entering the crystallizer 9 per unit time and the ingot 15 exiting the crystallizer 9.
    Further, in the processor 20 using the subroutine is programmed (Fig. 3 and 4) to change the edges of the disk 5. This means that periodically after turning off the regulation of the level program
    14 of the filling by means of a subroutine, instead of the throttling edge K1, the throttling edge K2 is brought into the regulating throttling D2, and then the float level control is turned on again, Throttling characteristic, in accordance with FIG. 5 shows a periodic change of edges.
    At the beginning of the casting process, the throttling edge K1 at the exit of the disk 5 with the stroke H1 from position A. - the opening (also Fig. 2) reaches the throttling position D1 embedded in the processor. There, the regulation of the filling level 14, which is presented on both sides of the positions A— (opening) in FIG. 2-5 and the regulation of the melt level 14 is shown on the time axis t with the help of a wavy segment 21. Between segments 21 there is a change of edges (segment 22), indicated by a straight line. With each change of edges, segment 22 moves (H1 + H2), disk 5 carries out the opening course with the channel completely free for flow passage
    7, so that due to the amount of melt entering the crystallizer 9 changing at a given moment, the newly adopted throttle position, for example, D2, needs to be corrected with respect to the initial throttle position, for example, D1. This correction is transmitted to the installation element 10 of the slide gate 3
    about.
    from, for example, the last two M1 and M2 determine the average M3, which is accepted into the control commands for 5 1739839 processor 20, which immediately before changing the edges, after disabling the filling level control, receives the value of the current position of the installation element 10 from the position meter 11 and remembers him
    Then the values of the quality value of the newly adopted throttle position D1 (Fig "5)"
    The described method for adjusting the slide gate 3 during the edge change of the disk 5, in accordance with FIG. 6, also has the effect that before each edge change when the filling level is switched off, the throttling of the disk 5 is briefly enhanced. This is done by supplementing the move HX, embedded in the memory of the processor 20, which operates after a period of time t x and provides a decrease in the level of the bath mirror in the mold 9, so as to compensate for the expected additional influx of melt during mold 9 "
    To compensate for the additional amount of melt resulting from the edge change, a method is also used, in accordance with Lig »7» Here, in addition to the reinforced throttling of the HX, ty, there is another reinforced throttling installed in the processor 20, however, of a lower value at the end of each change process edges before activating the filling level control »Enhanced throttling from the end side HY, performs the role of the formed level alignment for the quickest possible conclusion of the melt mirror to the proper level filling crown 14, on segment 21 of which, in accordance with League 8, the edge change (segment 22) consists in enhanced throttling of HX, t x , HY, according to League
    7.
    The number of edge changes and their variation. The control options according to the examples in accordance with Figs. 5 and 6, also Lig. 7 and 8, must correspond to one or another slide gates · 3 or casting modes of the continuous casting installation, and it should mainly be based on the fact that for smaller cross-sections of crystallizers more precise control processes are desirable (for example, League »7 and
    权利要求:
    Claims (5)
    [1]
    about r m l a inventions
    1 "A method for controlling the casting of metal, mainly during continuous casting and supply of metal to the mold through a slide gate, consisting of three plates, which includes controlling the metal level in the crystallizer by measuring the metal level in it and when the level deviates from the change value set by the technology the degree of throttling of the metal flow due to a change in the position of the working edge of the channel of the movable plate of the slide gate, the periodic termination of level control with the subsequent change of the working edge and the resumption of the regulation after the metal layer, characterized in that, to increase the reliability of the gate valve, when changing the working edge is set into position with the values of one or more preceding positions of the working edge of the metal flow throttling mode "
    [2]
    2 ”The method according to claim 1, characterized in that the throttling position after changing the working edge is defined as the average value of at least two values of the working edge in lining mode”
    [3]
    3 "The method according to PP" 1 and 2, wherein the before and / or after changing the working edge reinforced throttling of the metal flow by additional movement of the movable shutter plate for a certain period of time "
    [4]
    4 "The method according to claim 3, with the fact that the value of the additional displacement is set less than 10 mm, and less than 10 s.
    posledrosrossa ο τ l and45 gates according to the technology t l and h a u50 the time interval is pp »3 and 4, about t l and then that the value
    [5]
    5. The method of increasing the throttling prior to the start of the change of the working edge is set to be greater than after its completion "
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1739839A3|1992-06-07|Method for control of metal casting
    NL8402669A|1985-04-01|FLUID LEVEL CONTROL.
    SU1447270A3|1988-12-23|Method of starting continuous metal casting plant
    US3946795A|1976-03-30|Method and apparatus for regulating the molten metal level in a mold of a continuous casting installation
    SU1367846A3|1988-01-15|Method and device for automatic control of metal continuous casting plant
    JPH0712530B2|1995-02-15|Method of casting molten metal
    KR100548170B1|2006-04-21|Metal strip casting method and apparatus
    EP0214797B1|1991-06-26|Method for controlling early casting stage in continuous casting process
    KR100301692B1|2001-11-22|Method and device for starting operation of the device for continuous casting between rolls
    CN1030540A|1989-01-25|Double-roll type conticaster
    RU2038887C1|1995-07-09|Method of maintaining free flow channel of gates
    RU96115365A|1998-11-27|METHOD AND DEVICE FOR STARTING INSTALLATION OF CONTINUOUS CASTING BETWEEN ROLLERS
    JP2966979B2|1999-10-25|Tundish molten steel weight control system in continuous casting.
    SU1363148A1|1987-12-30|System for regulating water distribution in canal with partition structures
    US3817311A|1974-06-18|Method and apparatus for controlling a continuous casting machine
    US5915456A|1999-06-29|Method and device for casting a strand from liquid metal
    JP2935882B2|1999-08-16|Control method of molten steel level in mold in continuous casting
    JPH0630024B2|1994-04-20|Hot water mixing device
    SU1037222A1|1983-08-23|Device for adjusting rate of metal casting under pressure
    SU1328428A1|1987-08-07|Arrangement for controlling water feed at canal portion
    JPH09277328A|1997-10-28|Method for controlling dwelling process of injection molding machine
    SU959335A1|1986-08-30|Method of continuous casting
    JPH0515959A|1993-01-26|Method for controlling rod position in stepping cylinder
    SU1008709A1|1983-03-30|Device for controlling liquid level in irrigation canal
    SU910337A1|1982-03-07|Ingot cooling automatic control system
    同族专利:
    公开号 | 公开日
    CN1040528A|1990-03-21|
    ES2032509T3|1993-02-16|
    EP0356552A1|1990-03-07|
    DE3869957D1|1992-05-14|
    ZA895236B|1990-04-25|
    JPH0289560A|1990-03-29|
    CA1310249C|1992-11-17|
    CZ286155B6|2000-01-12|
    HUT54574A|1991-03-28|
    MX172488B|1993-12-17|
    AR244119A1|1993-10-29|
    US5048594A|1991-09-17|
    CN1019282B|1992-12-02|
    HU207676B|1993-05-28|
    PL163987B1|1994-06-30|
    AT74544T|1992-04-15|
    CS479089A3|1991-10-15|
    EP0356552B1|1992-04-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CH420498A|1965-03-09|1966-09-15|Concast Ag|Device for changing the position of the casting stream, in particular during continuous casting|
    DE1910247A1|1969-02-28|1970-09-10|Neitzel Dipl Ing Martin|Device and method for pouring metallurgical melts and similar products|
    DE2014331A1|1970-03-25|1972-03-02|Didier Werke AG, 6200 Wiesbaden|Slide closure on containers for liquid melt|
    US4077457A|1974-03-06|1978-03-07|Sumitomo Metal Industries Limited|Molten metal pouring control method and apparatus for use in continuous casting equipment|
    GB1515922A|1975-06-04|1978-06-28|Danieli Off Mecc|Bottom pouring vessel with rotary sliding gate valve for molten metal|
    JPS53129125A|1977-04-19|1978-11-10|Mitsubishi Heavy Ind Ltd|Ladle value control apparatus in continuous casting|
    DE7737254U1|1977-12-07|1978-05-18|Zimmermann & Jansen Gmbh, 5160 Dueren|POUR SLIDER|
    JPS5527495A|1978-08-19|1980-02-27|Stopinc Ag|Threeeply system sliding closing appliance|
    CH653269A5|1981-06-01|1985-12-31|Metacon Ag|METHOD FOR PREVENTING THE FREEZING OF METAL MELT IN THE OUTLET CHANNEL OF A CASTING VESSEL.|
    JPS603952A|1983-06-20|1985-01-10|Sumitomo Metal Ind Ltd|Pouring method of molten metal|
    US4597048A|1983-09-07|1986-06-24|United States Steel Corporation|Digital flow regulation of liquid-level control for a continuous casting mold|
    DE3422901C2|1984-06-20|1987-02-05|Metacon Ag, Zuerich, Ch|
    US4730660A|1984-09-05|1988-03-15|Metacon Aktiengesellschaft|Process for casting molten metal into several strands|
    US4625787A|1985-01-22|1986-12-02|National Steel Corporation|Method and apparatus for controlling the level of liquid metal in a continuous casting mold|
    DE3509932C2|1985-03-19|1988-04-14|Metacon Ag, Zuerich, Ch|
    JPS61212460A|1985-03-19|1986-09-20|Sumitomo Metal Ind Ltd|Device for preventing clogging of molten steel pouring passage of continuous casting installation|
    DE3742215C2|1987-12-12|1991-07-04|Metacon Ag, Zuerich, Ch|GB2311947A|1996-03-12|1997-10-15|Flogates Ltd|Sliding gate valve|
    AT309877T|2000-03-16|2005-12-15|Vesuvius Crucible Co|SLIDING SHUTTER FOR REGULATING THE CAST SPRAY OF LIQUID METAL|
    EP2272605A1|2009-06-24|2011-01-12|Siemens AG|Regulation method for the casting mirror of a continuous casting mould|
    CN102859336B|2010-04-30|2016-01-20|阿格利斯集团股份公司|Measurement in metallurgical tank|
    CN103084566B|2011-11-07|2016-08-03|上海宝信软件股份有限公司|Ladle regulator control system|
    CA2838446C|2013-01-04|2017-02-21|Schlagel, Inc.|Gate with variable gate control for handling agricultural granular materials|
    US10059513B1|2013-01-04|2018-08-28|Schlagel, Inc.|Gate with anti-fouling proximity indicators for handling agricultural granular materials|
    CN104759612A|2015-04-09|2015-07-08|马钢控股有限公司|Long nozzle inserting type pouring starting device and method|
    CN105665675A|2016-04-07|2016-06-15|江苏永钢集团有限公司|Automatic control and alarming system of molten steel liquid level in crystallizer of continuous casting machine|
    CN107127325B|2017-05-03|2018-10-09|上海弘智金属制品有限公司|A kind of end cap casting device|
    CN111168029A|2020-01-14|2020-05-19|邢台钢铁有限责任公司|Control method for automatic casting of large ladle of continuous casting machine|
    CN111250683B|2020-02-12|2021-07-30|上海中天铝线有限公司|Model-free self-adaptive rolling mill casting liquid level control method and device and storage medium|
    CN111250684B|2020-02-12|2021-08-13|上海中天铝线有限公司|Liquid level control method and device based on rolling mill casting device and storage medium|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    EP88114177A|EP0356552B1|1988-08-31|1988-08-31|Process for controlling sliding gate valves, particularly in continuous-casting machines|
    [返回顶部]