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1. 发明授权

US06432165B1 Method for injecting gases into a metallurgical tank 失效
标题翻译：将气体注入冶金罐的方法
公开(公告)号：US06432165B1
公开(公告)日：2002-08-13
申请号：US09555546
申请日：2000-08-15
申请人： Rainer Dittrich , Horst-Dieter Schöler , Andreas Ploch , Manfred Zeimes
发明人： Rainer Dittrich , Horst-Dieter Schöler , Andreas Ploch , Manfred Zeimes
IPC分类号： C21C7072
CPC分类号： C21C7/10 , C21C5/4606
摘要： A blowing lance for treating molten metals which are situated in vacuum-treatment vessels, in particular steel in RH vessels, having a central pipe and an encasing pipe which is arranged coaxially with respect to the central pipe and can be cooled by a cooling medium. The central pipe and the encasing pipe are connected to supply lines, which in turn can be connected to an oxygen station, a fuel-gas station and an inert-gas station and to a solids-feed device. In this lance, the cooled encasing pipe is arranged at a distance from the central pipe over its entire length. The free annular area (AR) between the two pipes satisfying the following statement AR=0.8 to 1.2×AZ where AZ=free cross-sectional area of the central pipe. The end of the central pipe is designed in the form of a Laval nozzle. The nozzle opening of the central pipe is being arranged at a distance (a) inside the encasing tube, where a=0.5 to 0.8×d where d=clear diameter of the central pipe.
摘要翻译：一种用于处理位于真空处理容器中的熔融金属的吹风枪，特别是RH容器中的钢，其具有中心管和相对于中心管同轴设置并可由冷却介质冷却的封装管。中心管和包装管连接到供应管线，供应管路又可连接到氧气站，燃料加油站和惰性气体站以及固体馈送装置。在这种喷枪中，冷却的包装管在其整个长度上与中心管相距一定距离。两个管道之间的自由环形区域（AR）满足以下声明：AZ =中心管道的自由横截面积。中心管的端部设计为拉瓦尔喷嘴的形式。中心管的喷嘴开口在包装管内部设置一定距离（a），其中a = 0.5至0.8xd其中d =中心管的透明直径。

2. 发明授权

US06235084B1 Method for decarburizing steels melts 失效
标题翻译：脱碳钢熔化方法
公开(公告)号：US06235084B1
公开(公告)日：2001-05-22
申请号：US09077040
申请日：1998-07-24
申请人： Horst-Dieter Schöler , Volker Wiegmann , Rainer Dittrich , Frank Haers , Leo Peeters
发明人： Horst-Dieter Schöler , Volker Wiegmann , Rainer Dittrich , Frank Haers , Leo Peeters
IPC分类号： C21C710
CPC分类号： C21C7/10
摘要： The invention relates to a process for decarburizing a steel melt in a closed metallurgical vessel that is connected to a vacuum unit which includes reducing pressure in the vessel to below 100 mbar, introducing replenishment oxygen to implement the removal of carbon, introducing a predetermined additional amount of oxygen, and introducing a combustible metallic substance with the additional amount of oxygen. The invention also relates to an apparatus for performing the above process including the closable vessel, measurement elements for determining melt temperature and pressure, and a controller for controlling the amount of additional oxygen and combustible metallic substance in response to the melt temperature and pressure.
摘要翻译：本发明涉及一种在闭合冶金容器中对连接到真空单元上的钢熔体进行脱碳的方法，所述真空装置包括将容器中的压力降低至低于100mbar，引入补充氧气以实施碳的除去，引入预定的附加量的氧气，并且引入具有额外量的氧气的可燃金属物质。本发明还涉及一种用于执行上述过程的装置，包括可关闭容器，用于确定熔体温度和压力的测量元件，以及用于响应熔融温度和压力控制附加氧气和可燃金属物质的量的控制器。

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