Nozzle assembly having inert gas distributor
    52.
    发明授权
    Nozzle assembly having inert gas distributor 失效
    具有惰性气体分配器的喷嘴组件

    公开(公告)号:US5723055A

    公开(公告)日:1998-03-03

    申请号:US677239

    申请日:1996-07-09

    CPC分类号: F27D3/16 B22D41/58 F27D3/1518

    摘要: A refractory nozzle assembly is provided that effectively prevents the accumulation of alumina deposits around its upper edge where it receives a stopper rod. The nozzle assembly includes a refractory nozzle body having an upper and a lower portion. A bore extends through both the upper and lower portions that has a receiving and a discharge end for receiving and discharging molten metal. An inert gas distributor circumscribes the upper portion of the nozzle body. A sleeve of gas-obstructing refractory material covers the walls of the bore, and defines a seat portion at an upper portion of the bore. A metal sheath substantially surrounds the outer surface of the upper portion. Pressurized inert gas conducted to the upper, gas permeable portion of the nozzle body by the gas-distributing assembly is guided by the gas-obstructing sleeve and the metal sheath so that it flows predominantly through the top edge of the upper portion. The resulting inert gas flow shields the seat portion of the bore from ambient oxygen, thereby preventing the accumulation of alumina deposits on the seat portion that can interfere with the ability of the stopper rod to control the flow of molten metal.

    摘要翻译: 提供了一种耐火喷嘴组件,其有效地防止氧化铝沉积物围绕其上边缘积聚,在其上边缘处容纳塞杆。 喷嘴组件包括具有上部和下部的耐火喷嘴体。 孔延伸穿过具有用于接收和排出熔融金属的接收和排出端的上部和下部。 惰性气体分配器限定喷嘴体的上部。 气体阻塞耐火材料的套筒覆盖孔的壁,并且在孔的上部限定了座部。 金属护套基本上围绕上部的外表面。 通过气体分配组件传导到喷嘴主体的上部透气部分的加压惰性气体被气体阻挡套管和金属护套引导,使得其主要流过上部的顶部边缘。 所产生的惰性气体流动将孔的座部分与环境氧隔离,从而防止在座部上积聚氧化铝沉积物,从而妨碍塞棒控制熔融金属流动的能力。

    System and device for removing impurities from molten metal
    53.
    发明授权
    System and device for removing impurities from molten metal 失效
    用于从熔融金属中去除杂质的系统和装置

    公开(公告)号:US5662725A

    公开(公告)日:1997-09-02

    申请号:US439739

    申请日:1995-05-12

    申请人: Paul V. Cooper

    发明人: Paul V. Cooper

    IPC分类号: B22D41/58

    CPC分类号: B22D41/58

    摘要: A system and device for removing impurities from molten metal comprising a pump within a chamber having an outlet port. The pump creates a flow or stream of molten metal through the outlet port. One or more gas-release tubes are provided adjacent the outlet port, each gas-release tube having one or more gas-release openings adjacent the outlet port. Gas is introduced into the gas-release tube(s) whereby it escapes through the openings into the molten metal stream thereby removing impurities from the molten metal. The system may further comprise a gas-release block, having one or more openings, mounted adjacent the bottom of the outlet port, partially within the molten metal flow. Gas is introduced into the block through a gas-transfer device where the gas escapes through the openings and enters the lower portion of the molten metal stream. Finally, the system may further comprise a metal-transfer device for containing the molten metal stream. The gas-release device communicates with the channel and releases gas into the channel into the molten metal stream.

    摘要翻译: 一种用于从熔融金属中去除杂质的系统和装置,包括在具有出口的腔室内的泵。 泵通过出口产生熔融金属流或流。 在出口附近提供一个或多个气体释放管,每个气体释放管具有邻近出口的一个或多个气体释放开口。 将气体引入气体释放管中,由此其通过开口逸出到熔融金属流中,从而从熔融金属中除去杂质。 该系统还可包括气体释放块,其具有一部分在熔融金属流中部分地邻近出口端部的底部安装的一个或多个开口。 通过气体传输装置将气体引入块中,其中气体通过开口逸出并进入熔融金属流的下部。 最后,系统还可以包括用于容纳熔融金属流的金属转移装置。 气体释放装置与通道连通并将气体释放到通道中进入熔融金属流。

    Nozzle and base plate apparatus and method for use in a tundish slide
gate valve
    54.
    发明授权
    Nozzle and base plate apparatus and method for use in a tundish slide gate valve 失效
    喷嘴和底板装置及其在中间包滑阀中的使用方法

    公开(公告)号:US5431374A

    公开(公告)日:1995-07-11

    申请号:US143112

    申请日:1993-10-29

    IPC分类号: B22D41/42 B22D41/58

    CPC分类号: B22D41/58 B22D41/42

    摘要: A unitized nozzle and top plate assembly for use in a slide gate valve is disclosed which comprises a nozzle having porous, gas permeable walls, a top plate having an opening through its thickness for regulating a flow of molten metal, such as steel, and a recess circumscribing the opening for receiving and securing the discharge end of the nozzle to the top plate. The depth of the recess is at least 50%, and preferably 70-80% of the thickness of the top plate in order to minimize the contact between molten metal and the surface of the top plate opening, which in turn reduces the amount of flow-obstructing alumina deposits which accumulate in this area of the slide gate valve. To prevent leaks from occurring in the system supplying pressurized argon through the porous nozzle walls, the gas coupling that is normally welded directly to the steel can surrounding the nozzle is instead mounted on the end of a steel pipe connected to the can. The thermal resistance of the steel pipe substantially reduces the temperature that the coupling is exposed to. The invention also encompasses a method for facilitating the assembly and maintenance of the slide gate valve by the use of the unitized nozzle and top plate in lieu of the in situ mounting of such a nozzle on a top plate already installed in such a valve.

    摘要翻译: 公开了一种用于滑动闸阀的单元喷嘴和顶板组件,其包括具有多孔的透气壁的喷嘴,顶板具有用于调节诸如钢的熔融金属流的厚度的开口,以及 凹口限定用于接收并将喷嘴的排出端固定到顶板的开口。 为了最小化熔融金属和顶板开口的表面之间的接触,凹部的深度为顶板的厚度的至少50%,优选为70-80%,这又减少了流量 - 积聚在滑动闸阀的该区域的氧化铝沉积物。 为了防止在通过多孔喷嘴壁供应加压氩气的系统中发生泄漏,通常将直接焊接到围绕喷嘴的钢罐的气体联接装置安装在连接到罐的钢管的端部上。 钢管的热阻大大降低了接头暴露的温度。 本发明还包括一种通过使用组合喷嘴和顶板便于组装和维护滑动闸阀的方法,代替将这种喷嘴原位安装在已安装在这种阀上的顶板上。

    Ceramic plug gas distribution device
    55.
    发明授权
    Ceramic plug gas distribution device 失效
    陶瓷插头气体分配装置

    公开(公告)号:US5423521A

    公开(公告)日:1995-06-13

    申请号:US885992

    申请日:1992-05-19

    IPC分类号: B22D1/00 B28B7/34 B22D41/58

    CPC分类号: B22D1/005 B28B7/342

    摘要: An insert member including a plurality of strand members having first and second ends and being oriented in a relative spatial relationship representative of a predetermined path, first end portions for mounting the first ends of the strand members and second end portions for mounting the second ends of the strand members, wherein the first and second means are separated by a predetermined distance to provide the predetermined spatial relationship of the strand members. Also, a combination for making a ceramic gas distribution device which includes this insert member and at least one ceramic in an unfired or green state cast partially therearound. The invention also provides methods for making a ceramic gas distribution device by placing a plurality of strand members in a predetermined orientation representative of a plurality of gas passages; casting a first ceramic about the strand members; allowing the cast ceramic to set to an unfired or green state; and firing the ceramic material to a final state while vaporizing the strand material therein to thus provide gas passages therein. The invention also relates to the ceramic gas distribution devices formed by these methods.

    摘要翻译: 一种插入构件,包括具有第一和第二端并且以代表预定路径的相对空间关系定向的多个线束构件,用于安装线束构件的第一端的第一端部和用于安装第二端的第二端部 所述线束构件,其中所述第一和第二装置被隔开预定距离以提供所述线构件的预定空间关系。 此外,用于制造陶瓷气体分配装置的组合,其包括该插入构件和部分地在其中部分地处于未燃或绿色状态的至少一种陶瓷。 本发明还提供了通过将多个线束构件放置在代表多个气体通道的预定取向来制造陶瓷气体分配装置的方法; 围绕线股成型铸造第一陶瓷; 允许铸造陶瓷设置为未燃或绿色状态; 并将陶瓷材料烧制到最终状态,同时使线材料在其中蒸发,从而在其中提供气体通道。 本发明还涉及通过这些方法形成的陶瓷气体分配装置。

    Casting spout for metallurgical vessels
    56.
    发明授权
    Casting spout for metallurgical vessels 失效
    铸造喷口用于冶金容器

    公开(公告)号:US5314099A

    公开(公告)日:1994-05-24

    申请号:US415320

    申请日:1989-09-19

    IPC分类号: B22D11/10 B22D41/50 B22D41/58

    CPC分类号: B22D41/50 B22D41/58

    摘要: An immersion nozzle (2) for metallurgical recipients, in particular for a reservoir arranged upstream of a continuous casting ingot mould, has an interchangeable discharge pipe (2) which can be attached in a leakproof manner on or in a perforated brick (1). To improve the flow conditions and hence the efficiency of the casting, the inlet side of the nozzle comprises an upper elongated section (12) in the form of a tubular shaft (11) which expands conically downward to a given plane and which is narrow in a plane perpendicular to the given plane. A second elongate section (13) ends in an elongated transverse flow section of given dimensions.

    摘要翻译: PCT No.PCT / DE88 / 00172 Sec。 371日期:1989年9月19日 102(e)日期1989年9月19日PCT提交1988年3月16日PCT公布。 第WO88 / 06932号公报 1988年9月22日,用于冶金接收器的浸入式喷嘴(2),特别是用于连续铸造铸模的上游的储存器,具有可互换的排放管(2),其可以以防漏的方式连接在或 穿孔砖(1)。 为了改善流动条件并因此提高铸件的效率,喷嘴的入口侧包括呈筒形轴(11)形式的上部细长部分(12),其向锥形向下延伸到给定的平面,并且其窄 垂直于给定平面的平面。 第二细长部分(13)以给定尺寸的细长横向流动部分结束。

    Means and method for forming a sealed connection
    57.
    发明授权
    Means and method for forming a sealed connection 失效
    形成密封连接的手段和方法

    公开(公告)号:US5173242A

    公开(公告)日:1992-12-22

    申请号:US738141

    申请日:1991-07-30

    CPC分类号: B22D41/502

    摘要: An assembly includes a discharge member of a metallurgical vessel and a pipe member connected to the discharge member at mutual surfaces thereof defining a seat therebetween. An annular recess is formed in the region of such seat, a seal seals such seat, and gas is supplied to the annular recess. The seal is in the form of a pair of compressible sealing rings positioned between the mutual surfaces of the two members on opposite sides of the annular recess. A pressure indicator is connected to a gas supply line supplying gas to the annular recess to provide an indication of the pressure of gas prevailing in the annular recess, and particularly of changes of such pressure.

    摘要翻译: 一种组件包括冶金容器的排放构件和在其相互的表面处连接到排出构件的管构件,其在其间限定了一个座。 在该座椅的区域中形成环形凹部,密封件密封该座椅,并将气体供应到环形凹部。 密封件是一对可压缩的密封环的形式,其位于两个构件在环形凹部的相对侧上的相互表面之间。 压力指示器连接到气体供应管线,该气体供应管线向环形凹部提供气体,以提供在环形凹槽中盛行的气体的压力的指示,特别是这种压力的变化。

    Porous refractory nozzle and method of making same
    58.
    发明授权
    Porous refractory nozzle and method of making same 失效
    多孔难熔喷嘴及其制作方法

    公开(公告)号:US5137189A

    公开(公告)日:1992-08-11

    申请号:US409738

    申请日:1989-09-20

    IPC分类号: B22D41/58

    CPC分类号: B22D41/58

    摘要: A nozzle for discharging molten metal from a vessel includes a porous inner sleeve surrounded by an impervious outer sleeve. The outer sleeve is cast in-situ around the inner sleeve, and is bonded in-situ to the outer surface of the inner sleeve in bonding areas adjacent its opposite ends. A gas chamber is defined between the inner and outer sleeves for receiving pressurized gas which passes through the inner sleeve to inhibit clogging and deterioration of the inner sleeve by molten metal and impurities. The gas chamber is formed by placing a heat fluidizable material around a portion of the inner sleeve before the outer sleeve is cast thereon. After casting of the outer sleeve, the assembly is heated to a temperature for fluidizing the fluidizable material which then escapes through the porous sleeve to leave a hollow gas chamber.

    摘要翻译: 用于从容器排出熔融金属的喷嘴包括由不透水的外套筒包围的多孔内套筒。 外套筒围绕内套筒原位铸造,并且在邻近其相对端的粘合区域中原位地粘合到内套筒的外表面。 在内套筒和外套筒之间限定一个气室,用于接收通过内套筒的加压气体,以阻止内套筒被熔融金属和杂质堵塞和变质。 气体室是通过在将外部套筒浇铸在其上之前将可热可流化材料放置在内部套筒的一部分周围形成的。 在外套筒铸造之后,组件被加热到使可流化材料流化的温度,然后该流体化材料通过多孔套管逸出以留下中空气体室。

    Process and apparatus for injecting gas into a discharge opening of a
metallurgical vessel
    59.
    发明授权
    Process and apparatus for injecting gas into a discharge opening of a metallurgical vessel 失效
    将气体注入金属容器的排放开放的过程和装置

    公开(公告)号:US5119976A

    公开(公告)日:1992-06-09

    申请号:US176183

    申请日:1988-03-31

    申请人: Bruno Muller

    发明人: Bruno Muller

    CPC分类号: B22D41/42

    摘要: A sliding closure unit includes a movable plate movable between open and closed positions to control the discharge of molten metal through an outlet opening of a metallurgical vessel. When the movable plate is in the closed position, a continuous flow of gas is injected from a gas supply system through the area of the movable plate confronting the outlet opening into the outlet opening. When a predetermined gas back pressure occurs in the gas supply system, indicative of solidification of molten metal in the outlet opening, at least one pressurized gas jet at a pressure of at least 12 bar is injected from a compressed gas supply system into the outlet opening, thereby clearing away any solidified metal from the outlet opening. This makes it possible to ensure that, when the movable plate is moved to the open position, the molten metal will be discharged through the outlet opening at a full flow rate of discharge.

    摘要翻译: 滑动闭合单元包括可在打开和关闭位置之间移动的可移动板,以控制熔融金属通过冶金容器的出口开口排出。 当可移动板处于关闭位置时,气体的连续流从气体供应系统通过与出口开口相对的可移动板的区域注入到出口中。 当在气体供应系统中发生预定的气体背压时,指示出口开口中的熔融金属凝固,至少一个压力为至少12巴的加压气体射流从压缩气体供应系统注入出口 从而从出口开口清除任何凝固的金属。 这使得可以确保当可移动板移动到打开位置时,熔融金属将以全流量的排出通过出口开口排出。

    Apparatus for mounting a gas washing sink in a centered manner in
perforated brick
    60.
    发明授权
    Apparatus for mounting a gas washing sink in a centered manner in perforated brick 失效
    用于以中心方式将气体清洗槽安装在多孔砖中的装置

    公开(公告)号:US5007621A

    公开(公告)日:1991-04-16

    申请号:US413673

    申请日:1989-09-28

    摘要: An apparatus for mounting a gas washing sink in a centered manner within an opening through a perforated brick in a wall of a metallurgical vessel and for removing the sink from the perforated brick includes a support assembly to be fixedly mounted on the exterior of the wall of the metallurgical vessel adjacent the opening in the perforated brick. A fastening assembly supports the sink and is mounted with respect to the support assembly for movement relative thereto between an operating position, whereat the sink is pressed into the opening through the perforated brick in a centered manner, and a maintenance position, whereat the sink is withdrawn from the opening through the perforated brick. Structures moves the fastening assembly relative to the support assembly to the operating position. A withdrawal apparatus moves the fastening assembly relative to the support assembly from the operating position to the maintenance position.

    摘要翻译: 一种用于将气体清洗槽以中心方式安装在穿过冶金容器的壁中的穿孔砖的开口内并用于从多孔砖移除水槽的装置包括:固定地安装在墙壁的外壁上的支撑组件 与穿孔砖中的开口相邻的冶金容器。 紧固组件支撑水槽并且相对于支撑组件安装,以在工作位置之间移动,在操作位置处,水槽以居中的方式通过穿孔砖被压入开口中,以及维护位置 通过穿孔砖从开口中取出。 结构将紧固组件相对​​于支撑组件移动到操作位置。 提取装置将紧固组件相对​​于支撑组件从操作位置移动到维护位置。