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公开(公告)号：US4386956A
公开(公告)日：1983-06-07
申请号：US212408
申请日：1980-12-03
IPC分类号： C22B7/00 , C22B20060101 , C22B7/04 , C22B15/00 , C22B21/00
CPC分类号： C22B7/04 , C22B21/0069 , C22B21/0092 , Y02P10/218
摘要： An improved method for recovery of metal, particularly aluminum, from metal bearing dross utilizes a trough for collection of the dross. A wedge member compresses the dross in the trough. In this manner, metal is decanted from the compressed dross and flows through slots in the bottom or passages in the walls of the trough for collection in a pan, or becomes concentrated at the edges or walls of the volume of dross. The trough and wedge members also serve to cool the dross material thereby diminishing metal loss due to thermite reaction. The compressed dross coalesces and solidifies, is broken and is mechanically separated. The larger dross components from the separation process are substantially metallic and may be recycled through the furnace. The remaining components are charged in a vortex melting furnace for the lowest possible melt loss. This also effects segregation of the remaining metal from the dross by melting the metal and allowing the dross to rise to the top of the bath. The improved method of the present invention provides for recovery of about 95% of aluminum metal from a dross which contains about 70% aluminum as compared with a recovery rate of about 50% aluminum metal utilizing a generally known prior art technique.
摘要翻译： 从金属轴承浮渣回收金属，特别是铝的改进方法利用了用于收集浮渣的槽。 楔形件压缩槽中的浮渣。 以这种方式，金属从压缩浮渣中倾出并流过槽底部的狭槽或槽的通道，用于收集在锅中，或者在渣槽的边缘或壁处集中。 槽和楔形构件还用于冷却浮渣材料，从而减少由于铝热反应引起的金属损失。 压缩的浮渣聚结并固化，破碎并机械分离。 来自分离过程的较大的浮渣组分基本上是金属的，并且可以通过炉再循环。 将其余组分装入涡流熔融炉中以获得尽可能低的熔体损失。 这也通过熔化金属并使浮渣上升到浴的顶部来实现残留的金属与浮渣的分离。 本发明的改进方法提供了使用通常已知的现有技术的技术，与含有约70％铝的浮渣相比，回收约95％的铝金属。
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公开(公告)号：US4527779A
公开(公告)日：1985-07-09
申请号：US537657
申请日：1983-09-30
CPC分类号： C22B7/04 , C22B21/0069 , Y02P10/212
摘要： An improved mechanism for recovery of metal, particularly aluminum, from metal bearing dross utilizes a trough for collection of the dross. A wedge member compresses the dross in the trough. In this manner, metal is decanted from the compressed dross and flows through slots in the bottom or passages in the walls of the trough for collection in a pan, or becomes concentrated at the edges or walls of dross. The trough and wedge members also serve to cool the dross material thereby diminishing metal loss due to thermite reaction.
摘要翻译： 从金属轴承浮渣回收金属，特别是铝的改进机理利用了用于收集浮渣的槽。 楔形件压缩槽中的浮渣。 以这种方式，金属从压缩的浮渣中倾出并流过槽的底部的狭槽或槽的通道，用于收集在锅中，或者在渣的边缘或壁处集中。 槽和楔形构件还用于冷却浮渣材料，从而减少由于铝热反应引起的金属损失。
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