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    Furnaces and methods of melting
    6.
    发明申请
    Furnaces and methods of melting 有权
    熔炉和熔化方法

    公开(公告)号：US20080023891A1

    公开(公告)日：2008-01-31

    申请号：US11891726

    申请日：2007-08-13

    申请人： Alan Peel ,  Roger Howitt

    发明人： Alan Peel ,  Roger Howitt

    IPC分类号： F27D3/00

    CPC分类号： F27D27/00 ,  F27B3/12 ,  F27D3/14 ,  F27D2003/0054 ,  Y10S266/90

    摘要： The invention provides an improved furnace structure and methods of melting material in furnaces, particularly aimed at reducing the start up time for such furnaces. The furnace (2) defines a container for the molten metal having a maximum depth of molten metal in that container during use. A flow generator (30) for the molten metal within the furnace is fed through a first conduit (32) and supplies material back to the furnace through a second conduit (36). The first conduit entrance is provided in the upper 60% of the maximum depth of the molten metal in the container and/or the second conduit exit is provided in the lower 25% of the maximum depth of the molten metal in the container. The flow generator may receive material preferentially from around the periphery of the container and/or direct material towards the centre of the container. The inlet and outlet to the flow generator may be angled downwards towards the container. All of these features improve heat transfer and material circulation within the furnace.

    摘要翻译： 本发明提供了一种改进的炉结构和熔炉中的材料的方法，特别是旨在减少这种炉的启动时间。 炉（2）在使用期间限定了用于熔融金属的容器，该容器在该容器中具有熔融金属的最大深度。 用于炉内的熔融金属的流动发生器（30）通过第一导管（32）进料，并通过第二导管（36）将材料返回到炉中。 第一导管入口设置在容器中熔融金属的最大深度的上部60％中，和/或第二导管出口设置在容器中熔融金属的最大深度的25％以内。 流动发生器可以优选地从容器的周边和/或直接材料朝向容器的中心接收材料。 流动发生器的入口和出口可朝向容器向下倾斜。 所有这些特征都改善了炉内的热传递和物料循环。

    MOLTEN METAL DOSING FURNACE WITH METAL TREATMENT AND LEVEL CONTROL AND METHOD
    7.
    发明申请
    MOLTEN METAL DOSING FURNACE WITH METAL TREATMENT AND LEVEL CONTROL AND METHOD 失效
    金属处理和水平控制和方法的金属定型炉

    公开(公告)号：US20020185789A1

    公开(公告)日：2002-12-12

    申请号：US09878721

    申请日：2001-06-11

    申请人： Alcoa Inc.

    发明人： Marshall A. Klingensmith ,  Andreas Kaleja ,  Michael J. Kinosz

    IPC分类号： C21C007/00

    CPC分类号： F27B3/20 ,  B22D39/00 ,  F27B3/045 ,  F27B3/08 ,  F27B3/19 ,  F27B3/28 ,  F27D1/003 ,  F27D3/14 ,  F27D3/1509 ,  F27D21/0028 ,  F27D2003/0054

    摘要： A dosing furnace (10) with metal treatment and level control includes a holding chamber (12) for containing a supply of molten metal (50), a pump (22) connected to the holding chamber (12), a molten metal treatment chamber (16, 18) located at an outlet (26) of the pump (22), and a dosing chamber (40) located downstream and in fluid communication with the molten metal treatment chamber (16, 18). A molten metal level sensor (56) is located in the dosing chamber (40). The pump (22) is a variable speed pump having a pump inlet (24) connected to the holding chamber (12) and configured to pump the molten metal (50) through the dosing furnace (10) during operation. The molten metal level sensor (56) is connected to the pump (22) for providing a pump speed control signal to the pump (22). The molten metal level sensor (56) is configured to monitor the level of the molten metal (50) in the dosing chamber (40) and maintain a preset level of the molten metal (50) in the dosing chamber (40) by controlling the speed of the pump (22) with the pump speed control signal.

    摘要翻译： 具有金属处理和液位控制的计量炉（10）包括用于容纳熔融金属（50）供应的保持室（12），连接到保持室（12）的泵（22），熔融金属处理室 位于泵（22）的出口（26）处的定量室（16,18）以及位于下游并与熔融金属处理室（16,18）流体连通的计量室（40）。 熔融金属液位传感器（56）位于计量室（40）中。 泵（22）是具有连接到保持室（12）的泵入口（24）并被构造成在操作期间通过计量炉（10）泵送熔融金属（50）的变速泵。 熔融金属液位传感器（56）连接到泵（22），用于向泵（22）提供泵速控制信号。 熔融金属液位传感器（56）被配置为监测计量室（40）中的熔融金属（50）的水平，并且通过控制计量室（40）中的熔融金属（50）的预定水平 泵的速度（22）与泵速度控制信号。

    Molten metal charge well
    8.
    发明授权
    Molten metal charge well 失效
    熔融金属充电好

    公开(公告)号：US6036745A

    公开(公告)日：2000-03-14

    申请号：US784832

    申请日：1997-01-17

    申请人： Ronald E. Gilbert ,  Chris T. Vild ,  Richard S. Henderson ,  Mark A. Bright

    发明人： Ronald E. Gilbert ,  Chris T. Vild ,  Richard S. Henderson ,  Mark A. Bright

    IPC分类号： C22B7/00 ,  C22B21/00 ,  F27D3/00 ,  F27D3/14

    CPC分类号： C22B21/0092 ,  C22B7/003 ,  F27D3/14 ,  F27D2003/0054 ,  Y02P10/218

    摘要： In a charge well for adding scrap metal pieces or particles to a molten metal bath, a stationary diverter is provided within a charge well for diverting the circular flow of molten metal, caused by the orientation of the inlet port, in a downward direction, thereby creating a downward flow of molten metal which results in quick and efficient submergence of incoming lightweight scrap metal pieces or particles. Preferably, the diverter includes a leading edge which extends in a generally radial direction within the charge well and a flat top surface which tapers from the leading edge to a point or narrowed trailing edge. A downward curved surface extends from the leading edge to facilitate the downward flow of molten metal. The diverter may be mounted on a support member extending above the charge well.

    摘要翻译： 在用于将金属碎屑或颗粒添加到熔融金属浴中的电荷中，在电荷阱内设置有固定的分流器，用于将由入口的取向引起的圆形熔融金属流沿着向下的方向转向， 产生熔融金属的向下流动，这导致进入的轻质废金属片或颗粒的快速和有效的浸没。 优选地，分流器包括在电荷阱内沿大致径向方向延伸的前缘，以及从前缘到点或变窄的后缘逐渐变细的平坦顶面。 向下弯曲的表面从前缘延伸以便于熔融金属的向下流动。 分流器可以安装在延伸在充电井上方的支撑构件上。

    Apparatus for the process of melting and purification of aluminum, copper, brass, lead and bronze alloys
    9.
    发明授权
    Apparatus for the process of melting and purification of aluminum, copper, brass, lead and bronze alloys 失效
    铝，铜，黄铜，铅和青铜合金熔化和净化工艺的设备

    公开(公告)号：US6010552A

    公开(公告)日：2000-01-04

    申请号：US971581

    申请日：1997-11-17

    申请人： Bruno Gasperetti ,  Anatolj Kolesnichenko

    发明人： Bruno Gasperetti ,  Anatolj Kolesnichenko

    IPC分类号： C22B9/16 ,  B01F13/08 ,  C21C5/52 ,  C22B9/00 ,  C22B9/02 ,  C22B9/22 ,  C22B21/00 ,  C22B21/06 ,  F27B14/06 ,  F27B14/08 ,  F27D3/00 ,  F27D3/14 ,  C21B11/10

    CPC分类号： B01F13/0809 ,  C22B21/0084 ,  C22B21/06 ,  C22B9/003 ,  C22B9/02 ,  F27B14/061 ,  F27D3/14 ,  B01F2215/0075 ,  C21C5/5241 ,  F27B2014/0881 ,  F27D2003/0054 ,  Y02P10/216 ,  Y02P10/234 ,  Y02P10/253 ,  Y10S266/90

    摘要： The present apparatus is comprised by two magnetic induction sets, one for melting of the raw material and the second for purification of molten metal; each set comprises a pot or crucible (1, 1'), an electromagnetic device, a filter (11) and a power supply; each crucible (1, 1') is surrounded in the lower part by a hollow permanent magnet (3, 3') in which three pairs of electromagnets facing each other are arranged; the process consists of the following stages: a) charging of metallic raw material inside a crucible (1); b) electromagnetic induction heating to melt the metallic raw material (2) inside crucible (1) through a three-phase magnetic system creating a horizontal travelling or pules magnetic field which builds a turbulent flux inside the melt (2'); c) whirling stirring of melt (2') by electromagnetic induction and purification of it via extraction of hydrogen and of non-electroconductive inclusions by coagulation of them in agglomerates; d) discharging of purified melt (2') by a magneto-hydrodynamic pump effect for the next treatment or technological actions such as the continuous or periodical casting through a filter for the mechanical filtration of the agglomerates.

    摘要翻译： 本装置包括两个磁感应组，一个用于熔化原料，另一个用于熔融金属的净化; 每个组包括锅或坩埚（1,1'），电磁装置，过滤器（11）和电源; 每个坩埚（1,1'）在其下部由中空永磁体（3,3'）包围，其中布置了三对面对的电磁体; 该过程包括以下阶段：a）在坩埚（1）内装入金属原料; b）电磁感应加热，以通过三相磁系统熔化坩埚（1）内的金属原料（2），产生在熔体（2'）内部形成湍流通道的水平行进或脉冲磁场; c）通过电磁感应和熔解（2'）旋转搅拌熔融物（2'），并通过在凝聚物中凝结而提取氢气和非导电夹杂物; d）通过用于下一次处理的磁流体动力泵效应排出纯化的熔体（2'）或技术作用，例如通过用于附聚物的机械过滤的过滤器的连续或周期性铸造。