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1. 发明授权

US06424672B1 Device for producing slag in an electric arc furnace 有权
标题翻译：电弧炉炉渣生产装置
公开(公告)号：US06424672B1
公开(公告)日：2002-07-23
申请号：US09674965
申请日：2001-01-11
申请人： Wilfried Stein , Karl Stein
发明人： Wilfried Stein , Karl Stein
IPC分类号： F27D2304
CPC分类号： F27B3/22 , C21C5/5217 , F27B3/085 , F27B3/28 , F27D3/18 , Y02P10/143 , Y02P10/216
摘要： An electric arc furnace (1), wherein solids are injected into the furnace chamber. The lances (9, 10, 11) are guided through the wall (12) of the electric arc furnace (1) and inserted into the wall of the furnace, whereby at least one lance is associated with each electrode (2, 3, 4), in order to enable a homogenous formation of slag and to inject as great an amount of solids as possible. The lances are distributed in an approximately uniform manner along the periphery of the furnace. The inclination of the lances and thus the angle of injection are selected in such a way that they form an angle of approximately 30-80° in relation to the flow direction of the melting bath and form an angle of approximately 10-30° in relation to the horizontal.
摘要翻译：一种电弧炉（1），其中固体被注入到炉室中。喷枪（9,10,11）被引导通过电弧炉（1）的壁（12）并插入炉壁中，由此至少一个喷枪与每个电极（2,3,4）），以便能够均匀地形成炉渣并且尽可能地注入大量的固体。喷枪沿着炉的周边以大致均匀的方式分布。喷枪的倾斜度以及喷射角的选择方式使得它们相对于熔融槽的流动方向形成大约30-80°的角度并形成大约10-30°的角度到水平线。

2. 发明授权

US06400748B1 Method for operating an electric arc furnace to build up and maintain foamed slag 有权
标题翻译：操作电弧炉以建立和保持泡沫炉渣的方法
公开(公告)号：US06400748B1
公开(公告)日：2002-06-04
申请号：US09674966
申请日：2001-01-08
申请人： Wilfried Stein , Karl Stein
发明人： Wilfried Stein , Karl Stein
IPC分类号： H05B1100
CPC分类号： F27B3/28 , C21C5/52 , C21C5/54 , F27B3/085 , F27B3/22 , F27D3/18 , Y02P10/216
摘要： In order to operate an electric arc furnace (1) in optimum conditions, especially in order to build up and maintain a certain intensity of foamed slag, the amount of slag builder fed into the furnace (1) and therefore the power consumption of the furnace (1) is regulated according to the current received by the electrodes (2) in such a way that a maximum amount of slag builder is initially added in order to build up said foamed slag until the amount of current received by the electrodes (2) is reduced. Subsequently, the amount of added slag builder is reduced until the amount of current received reaches a predetermined set value. The theoretical amount of current received is kept constant by reducing or increasing the added amount of slag builder.
摘要翻译：为了在最佳条件下操作电弧炉（1），特别是为了建立和保持一定强度的泡沫炉渣，进料到炉子（1）中的炉渣助洗剂的量以及炉的功率消耗（1）根据由电极（2）接收的电流调节，使得最初添加最大量的炉渣助洗剂，以便建立所述泡沫渣直到由电极（2）接收的电流量为止，降低了。随后，添加的渣助渣剂的量减少，直到接收的电流达到预定的设定值。通过减少或增加添加量的渣渣助熔剂，可以使理论电流量保持不变。

3. 发明授权

US06379415B1 Method for feeding granular solids into metal melts 有权
标题翻译：将颗粒状固体加入到金属熔体中的方法
公开(公告)号：US06379415B1
公开(公告)日：2002-04-30
申请号：US09381440
申请日：1999-11-29
申请人： Lutz Garten , Klaus Keller , Wilfried Stein , Karl Stein
发明人： Lutz Garten , Klaus Keller , Wilfried Stein , Karl Stein
IPC分类号： C22B910
CPC分类号： C21C7/0043 , B22D1/00 , C21C5/466 , C21C5/5217 , C21C5/527 , Y02P10/216
摘要： The invention relates to a method for feeding solids into metal or steel melts whereby granular solids required during the analysis adjustment are fed in a predetermined quantity into the turbulent regions of the metal melt in a dense flow process by means of a pneumatic conveying device in order to achieve a high output while avoiding expensive and complex measures associated with lances and capital-intensive investments for injection devices and lance-moving devices.
摘要翻译：本发明涉及一种用于将固体输送到金属或钢熔体中的方法，其中在分析调整期间所需的颗粒固体以预定的量以紧密流动方式通过气动输送装置按顺序进料到金属熔体的湍流区域实现高产量，同时避免与注射装置和喷枪装置的长枪和资本密集型投资相关的昂贵且复杂的措施。

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