Nozzle and base plate apparatus and method for use in a tundish slide
gate valve
    1.
    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。

    Continuous casting tundish
    2.
    发明授权
    Continuous casting tundish 有权
    连铸中间包

    公开(公告)号:US08251264B2

    公开(公告)日:2012-08-28

    申请号:US11995443

    申请日:2006-07-14

    IPC分类号: B22D41/50

    CPC分类号: B22D41/50 B22D41/502

    摘要: A tundish assembly, including an element, for preventing or limiting steel reoxidization in the continuous casting of molten steel, is used in combination with a refractory nozzle. The element has an orifice engaging the outer surface of the nozzle, a main surface surrounding the main orifice and having a lowest level lower than the top outer edge of the nozzle inlet portion, and a periphery having an upper face surrounding the man surface of the element. The upper face of the periphery of the element is higher than the main surface of the element and is higher than the surface of the bottom well of the tundish. The main surface of the element is arranged so as to contact molten steel when the tundish is in use.

    摘要翻译: 与耐火喷嘴组合使用包括用于防止或限制钢水连续铸造中的钢再氧化的元件的中间包组件。 元件具有接合喷嘴的外表面的孔口,围绕主孔口的主表面,并且具有比喷嘴入口部分的顶部外边缘低的最低水平面,以及具有围绕人体表面的上表面的周边 元件。 元件周边的上表面高于元件的主表面,并且高于中间包的底部孔的表面。 元件的主表面布置成当中间包使用时与钢水接触。

    REFRACTORY ELEMENT, ASSEMBLY AND TUNDISH FOR TRANSFERRING MOLTEN METAL
    4.
    发明申请
    REFRACTORY ELEMENT, ASSEMBLY AND TUNDISH FOR TRANSFERRING MOLTEN METAL 审中-公开
    炼钢元件,组装和输送用于转移金属的结构

    公开(公告)号:US20140061257A1

    公开(公告)日:2014-03-06

    申请号:US14009545

    申请日:2012-02-28

    IPC分类号: B22D41/50

    CPC分类号: B22D41/50 B22D41/502

    摘要: A refractory element is configured to prevent or limit steel reoxidation in a steel casting process. The refractory element contains a base surrounded by a periphery in a specified geometrical arrangement. The refractory element is constituted of a base surrounded by a periphery in a specified geometrical arrangement.

    摘要翻译: 耐火元件构造成防止或限制钢铸造过程中的钢再氧化。 难熔元件包含以指定几何布置的周边围绕的基座。 难熔元件由以特定几何布置的周边包围的基底构成。

    Assembly of a nozzle and surrounding element
    5.
    发明授权
    Assembly of a nozzle and surrounding element 有权
    喷嘴和周围元件的组装

    公开(公告)号:US08631978B2

    公开(公告)日:2014-01-21

    申请号:US13546530

    申请日:2012-07-11

    CPC分类号: B22D41/50 B22D41/502

    摘要: A tundish assembly, including an element, for preventing or limiting steel reoxidization in the continuous casting of molten steel, is used in combination with a refractory nozzle. The element has an orifice engaging the outer surface of the nozzle, a main surface surrounding the main orifice and having a lowest level lower than the top outer edge of the nozzle inlet portion, and a periphery having an upper face surrounding the main surface of the element. The upper face of the periphery of the element is higher than the main surface of the element and is higher than the surface of the bottom well of the tundish. The main surface of the element is arranged so as to contact molten steel in a tundish.

    摘要翻译: 与耐火喷嘴组合使用包括用于防止或限制钢水连续铸造中的钢再氧化的元件的中间包组件。 元件具有接合喷嘴的外表面的孔口,围绕主孔口的主表面,并且具有比喷嘴入口部分的顶部外边缘低的最低水平面,以及周边,其具有围绕喷嘴入口部分的主表面的上表面 元件。 元件周边的上表面高于元件的主表面,并且高于中间包的底部孔的表面。 元件的主表面布置成与中间包中的钢水接触。

    Continuous Casting Tundish
    6.
    发明申请
    Continuous Casting Tundish 有权
    连续铸造中间包

    公开(公告)号:US20080210719A1

    公开(公告)日:2008-09-04

    申请号:US11995443

    申请日:2006-07-14

    IPC分类号: B22D41/50

    CPC分类号: B22D41/50 B22D41/502

    摘要: A tundish assembly, including an element, for preventing or limiting steel reoxidization in the continuous casting of molten steel, is used in combination with a refractory nozzle. The element has an orifice engaging the outer surface of the nozzle, a main surface surrounding the main orifice and having a lowest level lower than the top outer edge of the nozzle inlet portion, and a periphery having an upper face surrounding the man surface of the element. The upper face of the periphery of the element is higher than the main surface of the element and is higher than the surface of the bottom well of the tundish. The main surface of the element is arranged so as to contact molten steel when the tundish is in use.

    摘要翻译: 与耐火喷嘴组合使用包括用于防止或限制钢水连续铸造中的钢再氧化的元件的中间包组件。 元件具有接合喷嘴的外表面的孔口,围绕主孔口的主表面,并且具有比喷嘴入口部分的顶部外边缘低的最低水平面,以及具有围绕人体表面的上表面的周边 元件。 元件周边的上表面高于元件的主表面,并且高于中间包的底部孔的表面。 元件的主表面布置成当中间包使用时与钢水接触。

    ASSEMBLY OF A NOZZLE AND SURROUNDING ELEMENT
    7.
    发明申请
    ASSEMBLY OF A NOZZLE AND SURROUNDING ELEMENT 有权
    喷嘴和周边元件组装

    公开(公告)号:US20120273531A1

    公开(公告)日:2012-11-01

    申请号:US13546530

    申请日:2012-07-11

    IPC分类号: B22D41/50

    CPC分类号: B22D41/50 B22D41/502

    摘要: A tundish assembly, including an element, for preventing or limiting steel reoxidization in the continuous casting of molten steel, is used in combination with a refractory nozzle. The element has an orifice engaging the outer surface of the nozzle, a main surface surrounding the main orifice and having a lowest level lower than the top outer edge of the nozzle inlet portion, and a periphery having an upper face surrounding the man surface of the element. The upper face of the periphery of the element is higher than the main surface of the element and is higher than the surface of the bottom well of the tundish. The main orifice of the element is off-center with respect to the main surface and the upper face of the periphery may have various heights. The main surface of the element is arranged so as to contact molten steel in a tundish.

    摘要翻译: 与耐火喷嘴组合使用包括用于防止或限制钢水连续铸造中的钢再氧化的元件的中间包组件。 元件具有接合喷嘴的外表面的孔口,围绕主孔口的主表面,并且具有比喷嘴入口部分的顶部外边缘低的最低水平面,以及具有围绕人体表面的上表面的周边 元件。 元件周边的上表面高于元件的主表面,并且高于中间包的底部孔的表面。 元件的主孔相对于主表面偏心,并且周边的上表面可以具有各种高度。 元件的主表面布置成与中间包中的钢水接触。

    Nozzle assembly having inert gas distributor
    8.
    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。