公开(公告)号：US5057194A

公开(公告)日：1991-10-15

申请号：US435502

申请日：1989-10-13

申请人： Donald L. Stewart ,  Jan H. L. Van Linden ,  Alfred F. LaCamera ,  Thomas V. Pierce ,  James O. Parkhill ,  John M. Urbanic ,  Thomas R. Hornack

发明人： Donald L. Stewart ,  Jan H. L. Van Linden ,  Alfred F. LaCamera ,  Thomas V. Pierce ,  James O. Parkhill ,  John M. Urbanic ,  Thomas R. Hornack

IPC分类号： C22B9/10 ,  C22B21/00 ,  C22B26/12 ,  C25C3/00 ,  C25C3/02 ,  C25C3/04 ,  C25C3/06 ,  C25C3/12 ,  C25C7/02

CPC分类号： C22B26/12 ,  C22B21/0046 ,  C22B21/0069 ,  C22B21/0092 ,  C22B9/106 ,  C25C3/00 ,  C25C3/02 ,  C25C3/04 ,  C25C3/06 ,  C25C3/125 ,  C25C7/025 ,  Y02P10/214 ,  Y02P10/218 ,  Y02P10/226

摘要： A continuous salt-based process is provided for melting and reclaiming aluminum from aluminum scrap containing impurities including heating a molten salt in a heat bay, mixing the heated salt with aluminum scrap or skim in a charge bay to form a molten charge mixture, separating aluminum from impurities in the charge bay by coalescing aluminum to form a molten aluminum metal pad, chlorinating a portion of the charge mixture from the charge bay to form a chlorinated salt mixture and metal chlorides, removing metal chlorides from the salt mixture, and feeding the salt mixture back to the heat bay. In one aspect, the chlorinating step of the present invention includes introducing carbon monoxide or, preferably, solid carbon to control oxide concentration. The process further comprises adding fluorides and removing metal chlorides from the salt to maintain a preferred salt composition. The metal chlorides can be removed by withdrawing volatile metal chloride gases and electrolytically reducing metal chlorides in the molten salt. A further aspect of the invention permits direct reduction of oxide impurities in the salt by electrolysis. In another aspect of the invention, the scrap itself is used as a consumable heating electrode (i.e., disappearing as the scrap melts) for heating the molten salt. An additional aspect of the invention provides that the molten salt is pumped past heating electrodes, which reduces hot spots that otherwise would lead to fuming and cause instability in the molten bath composition. Yet another aspect of the invention permits removal of carbon impurities, which can be introduced to the molten salt when melting of the scrap causes pyrolysis of organic material associated with the scrap, for example, the lacquer coating on beverage cans.

摘要翻译： PCT No.PCT / US88 / 02374 371日期：1989年10月13日 102（e）日期1989年10月13日PCT Filed 1988年7月19日PCT Pub。 第WO89 / 06291号公报 日期为1989年7月13日。提供了一种连续的盐基方法，用于从含有杂质的铝废料中熔化和回收铝，包括在加热室中加热熔融盐，将加热的盐与铝废料或脱脂在电荷室中混合形成 熔融充料混合物，通过聚集铝形成熔融铝金属垫将铝与电荷隔室中的杂质分离，从电荷室氯化一部分电荷混合物以形成氯化盐混合物和金属氯化物，从金属氯化物中除去金属氯化物 盐混合物，并将盐混合物送回加热室。 一方面，本发明的氯化步骤包括引入一氧化碳或优选固体碳以控制氧化物浓度。 该方法还包括加入氟化物并从盐中除去金属氯化物以保持优选的盐组成。 可以通过抽出挥发性金属氯化物气体和电解还原金属氯化物来除去金属氯化物。 本发明的另一方面允许通过电解直接还原盐中的氧化物杂质。 在本发明的另一方面，废料本身用作可消耗的加热电极（即当废料熔化时消失）用于加热熔融盐。 本发明的另一方面提供了熔融盐被泵送通过加热电极，这减少了热点，否则会导致发烟并导致熔融浴组合物不稳定。 本发明的另一方面允许去除碳杂质，其可以在熔融废料时引入熔融盐，导致与废料相关的有机材料的热解，例如饮料罐上的漆层。

公开(公告)号：US4490049A

公开(公告)日：1984-12-25

申请号：US500580

申请日：1983-06-02

申请人： John T. Sanders ,  Donald L. Stewart

发明人： John T. Sanders ,  Donald L. Stewart

IPC分类号： B01F5/00 ,  B01F7/00 ,  B01F5/12 ,  B01F15/02

CPC分类号： B01F7/00508 ,  B01F7/00908

摘要： A longitudinally extending housing with end closures forms a closed mixing chamber within the housing. A mixer that has a fluid material inlet at each end thereof with longitudinally spaced, opposed ends forming fluid material outlets and a central peripheral discharge from the mixer between the end outlets is supported on a rotatable shaft that extends through one of the end closures to position the mixer in the mixing chamber. Housing inlet means comprising a pair of conduits communicate fluid to the closed mixing chamber for discharging it thereinto adjacent, but spaced from the end fluid inlets of the mixer, and housing outlet means is aligned with the mixer to receive the central discharge therefrom. The diameter of the mixer is about one-half the diameter of the closed mixing chamber, and the length of the mixer is about one-third the longitudinal extent of the closed mixing chamber. The mixer is positioned substantially equidistant from the sides and ends of the mixing chamber.

摘要翻译： 具有端盖的纵向延伸的壳体在壳体内形成封闭的混合室。 混合器在其每个端部处具有流体材料入口，其纵向间隔的相对的端部形成流体材料出口，并且在端部出口之间的混合器的中心周边排出口被支撑在可旋转的轴上，该可旋转轴线延伸穿过其中一个端部封闭件到位置 混合器在混合室中。 包括一对管道的壳体入口装置将流体连通到封闭的混合室，用于将其排出到与混合器的相邻的但与间隔开的端部流体入口处，并且壳体出口装置与混合器对准以接收中心排出口。 混合器的直径约为封闭混合室直径的一半，混合器的长度约为闭合混合室纵向范围的三分之一。 混合器位于与混合室的侧面和端部基本等距的位置。

公开(公告)号：US06347545B1

公开(公告)日：2002-02-19

申请号：US09587416

申请日：2000-06-01

申请人： Kevin F. Osborn ,  Donald L. Stewart ,  Thomas J. McCandless

发明人： Kevin F. Osborn ,  Donald L. Stewart ,  Thomas J. McCandless

IPC分类号： G01M336

CPC分类号： G01M3/3272

摘要： A bottle closure testing apparatus includes a plurality of testing modules mounted side by side on a base plate. Each testing module includes a base block having a pressure input, a pressure signal output, and a holder for a test vessel. The test vessel is a plastic bottle blow-molding preform having a bottle finish and a pressure entry port. A preform is mounted to each of the modules with the pressure entry port in fluid communication with one of the pressure inputs. A closure is screwed onto each of the preforms and the preforms are pressurized to a preselected test pressure via the module. The pressure within the preforms can be monitored by pressure gauges at the signal outputs, or by transducers at the signal outputs which communicate a pressure signal to remote monitoring equipment.

摘要翻译： 瓶封测试装置包括并排安装在基板上的多个测试模块。 每个测试模块包括具有压力输入，压力信号输出的基块和用于测试容器的保持器。 试验容器是具有瓶口和压力进入口的塑料瓶吹塑预成型件。 将预成型件安装到每个模块，其中压力进入口与压力输入之一流体连通。 将封闭件拧到每个预成型件上，并通过模块将预制件加压至预选的测试压力。 预制件内的压力可以通过信号输出处的压力表，或通过将压力信号传递给远程监控设备的信号输出的换能器来监测。

公开(公告)号：US07556766B2

公开(公告)日：2009-07-07

申请号：US11559939

申请日：2006-11-15

申请人： Ho Yu ,  Donald L. Stewart

发明人： Ho Yu ,  Donald L. Stewart

IPC分类号： C22B9/16

CPC分类号： C21C5/562 ,  C21C1/06 ,  C22B7/003 ,  C22B21/0092 ,  F27B3/045 ,  F27D27/00 ,  Y02P10/216 ,  Y02P10/218 ,  Y10S266/90 ,  Y10S266/901

摘要： A scrap melter for light gage metal scrap includes a shrouded impeller connected to a shaft, the shaft connected to a rotary power device. The shrouded impeller is immersed in a molten metal pool in a charge bay or furnace. It is inclined at an angle relative to the vertical. The shrouded impeller creates a vortex in the molten metal pool, which includes a whirlpool at the surface of the molten metal. The center of the whirlpool is horizontally displaced from the shaft so that scrap can be charged into the whirlpool to be ingested into the vortex. The shrouded impeller creates a vortex for scrap ingestion and pumps molten metal for re-circulation through the melting system without the need of a separate pump.

摘要翻译： 用于轻量表金属废料的废料熔化器包括连接到轴的被覆盖的叶轮，该轴连接到旋转动力装置。 将被覆盖的叶轮浸入电荷槽或炉中的熔融金属池中。 它相对于垂直方向倾斜一定角度。 被覆盖的叶轮在熔融金属池中产生涡流，其包括在熔融金属表面的漩涡。 漩涡的中心与轴水平移位，使得废料可以装入漩涡中以摄入涡流。 被覆盖的叶轮产生用于废料吸收的涡流，并且将熔融金属泵送通过熔化系统再循环，而不需要单独的泵。