Process and device for blowing oxygen over metal melts
    1.
    发明授权
    Process and device for blowing oxygen over metal melts 失效
    在金属熔体上吹氧的方法和装置

    公开(公告)号:US5571307A

    公开(公告)日:1996-11-05

    申请号:US360742

    申请日:1995-02-10

    CPC分类号: C21C7/10 C21C5/4606

    摘要: The invention relates to a process and a device for blowing oxygen over a metal melt under a vacuum. The oxygen is to be applied over a large surface with a large intermediate phase area while avoiding overcooling in the metal bath by simple, easily maintained structural means. The flow of oxygen in the lance is accelerated and compressed into plug-shaped oxygen pulses, which leave the lance in succession and which form an oxygen bell over the vacuum above the metal melt, having an oxygen casing and an oxygen core, the core moving at a speed similar to that of the casing. At the base of the wall 41 of the blowing lance 40 there is an annular nozzle 42. At a distance behind the annular nozzle 42 in the direction of flow of the oxygen there is a blind tube 44 forming a fan-shaped compartment 43. Between the bottom 46 of the blind tube 44 and the head of the blowing lance 40 there is a pre-nozzle chamber 48 and in the head of the blowing lance 40 there is at least one base nozzle 50 directed toward the melt. The head nozzle 50 takes the form of a Laval nozzle and has components 51 to stabilize the flow of oxygen.

    摘要翻译: PCT No.PCT / DE93 / 00362 Sec。 371日期1995年2月10日 102(e)日期1995年2月10日PCT提交1993年4月22日PCT公布。 公开号WO94 / 00604 日期1994年1月6日本发明涉及一种在真空下在金属熔体上吹氧的方法和装置。 氧气被施加在具有大的中间相面积的大表面上,同时通过简单且容易维持的结构装置避免金属浴中的过冷。 喷枪中的氧气流被加速并压缩成塞子形状的氧脉冲,其中连续地留下喷枪,并且在金属熔体上方的真空下形成氧钟,具有氧气套和氧芯,芯移动 以类似于套管的速度。 在喷枪40的壁41的底部处有一个环形喷嘴42.在环形喷嘴42的后面,在氧气流动方向的一定距离处,形成一个形成扇形隔间43的盲管44。 盲管44的底部46和吹扫喷枪40的头部具有预喷嘴室48,并且在吹扫喷枪40的头部中具有朝向熔体的至少一个基部喷嘴50。 头部喷嘴50采用拉瓦尔(Laval)喷嘴的形式并且具有用于稳定氧气流的部件51。

    Process and device for introducing gases into metal melts
    2.
    发明授权
    Process and device for introducing gases into metal melts 失效
    将气体引入金属熔体的工艺和装置

    公开(公告)号:US5803948A

    公开(公告)日:1998-09-08

    申请号:US628682

    申请日:1996-07-01

    摘要: A process and a device for introducing gases into a metal melt contained in metallurgical vessels via ducts arranged in the refractory lining of the vessel. In order to permit deeper penetration of the jet of gas and better mixing with the melt, an oscillating jet of gas is produced and introduced into the melt. For this purpose, several acoustic generators with which the gas is brought into contact with the melt are provided in the device.

    摘要翻译: PCT No.PCT / DE94 / 01180 Sec。 371日期:1996年7月1日 102(e)日期1996年7月1日PCT 1994年9月28日PCT PCT。 WO95 / 10634 PCT公开号 日期1995年04月20日一种用于通过布置在容器的耐火衬里中的管道将气体引入到包含在冶金容器中的金属熔体中的装置。 为了允许气体射流的更深的穿透和与熔体的更好的混合,产生振荡的气体射流并将其引入熔体中。 为了这个目的,在装置中提供了几个与熔体接触的声发生器。

    Degassing vessel for the vacumm treatment of liquid steel
    3.
    发明授权
    Degassing vessel for the vacumm treatment of liquid steel 失效
    脱气容器用于钢液真空处理

    公开(公告)号:US5299784A

    公开(公告)日:1994-04-05

    申请号:US944213

    申请日:1992-09-11

    IPC分类号: C21C7/10

    CPC分类号: C21C7/10

    摘要: This invention relates to a degassing vessel for the vacuum treatment of liquid steel, consisting of a lower, middle and upper part. To protect the heater rod, which in the degassing vessel is oriented at a right angle to the center axis, the invention essentially proposes that the middle part has a cylindrical shape with the same radius as the lower part, that in the vicinity of the connection to the upper part there is a flat gas guide surface parallel to the heater rod and at an angle to the cylindrical jacket, and that finally the jacket of the upper part connected to the middle part has the shape of a half-tube, which is closed by a flat surface oriented parallel to the center axis.

    摘要翻译: 本发明涉及一种用于真空处理液态钢的脱气容器,其由下部,中部和上部组成。 为了保护脱气容器中的加热棒与中心轴线成直角定位,本发明基本上提出了中间部分具有与下部相同半径的圆柱形形状,在连接附近 在上部具有与加热棒平行的平坦的气体引导表面并且与圆筒形夹套成一定角度,最后连接到中间部分的上部的套管最终具有半管的形状,即 由平行于中心轴线的平坦表面封闭。