Method for recovering zinc from zinc-containing waste materials
    1.
    发明授权
    Method for recovering zinc from zinc-containing waste materials 失效
    从含锌废物中回收锌的方法

    公开(公告)号:US5188658A

    公开(公告)日:1993-02-23

    申请号:US628573

    申请日:1990-12-14

    摘要: The present invention relates to a method for recovering zinc from zinc-containing materials, especially from zinc-containing materials recovered from waste gases in metallurgical smelting processes. Particulate zinc-containing materials are agglomerated together with a carbonaceous reduction material and optionally slag forming materials, and are supplied to a gas tight closed electrothermic smelting furnace containing a molten bath kept at a temperature between 1200.degree. and 1700.degree. C. in which the agglomerates are smelted and subjected to selective reduction and volatilization of zinc and other volatile metals. An inert slag phase and optionally a liquid metal phase are tapped from the smelting furnace, and zinc and other volatile metals are recovered from the waste gas from the smelting furnace by condensation. In order to prevent reoxidation of metallic zinc the particulate zinc-containing materials are agglomerated together with a carbonaceous binder which cracks at a temperature below 700.degree. C. and forms carbon black, and that the temperature in the gas atmosphere in the smelting furnace is kept above 1000.degree. C. in order to maintain a volume ratio between CO.sub.2 and CO in the gas atmosphere in the smelting furnaces below 0.3.

    Method and apparatus for treatment of dust recovered from off gases in
metallurgical processes
    2.
    发明授权
    Method and apparatus for treatment of dust recovered from off gases in metallurgical processes 失效
    用于处理冶金过程中从废气中回收的灰尘的方法和设备

    公开(公告)号:US5004496A

    公开(公告)日:1991-04-02

    申请号:US555653

    申请日:1990-07-20

    IPC分类号: C21C5/38 C22B7/02 F27D17/00

    摘要: The method for treating the dust entails the following steps:(a) supplying a combination of dust, a reducing agent and flux to a gastight electrothermic smelting furnace,(b) smelting, reducing and volatilizing certain metals in the smelting furnace,(c) tapping of an inert slag phase and a liquid metal phase from the smelting furnace,(d) continuous removal from the smelting furnace of a gas phase containing chiefly CO-gas, metal fumes, sulphur, chlorides and fluorides together with entrained unreacted dust,(e) further treatment of the gas phase.The process produces an inert slag phase which can be safely deposited in a landfill. The process also allows for recovery of valuable metal components from the dust.

    Method for treatment of dust recovered from off gases in metallurgical
processes
    3.
    发明授权
    Method for treatment of dust recovered from off gases in metallurgical processes 失效
    冶金过程中废气回收灰尘的处理方法

    公开(公告)号:US4957551A

    公开(公告)日:1990-09-18

    申请号:US209492

    申请日:1988-06-20

    IPC分类号: C21C5/38 C22B7/02 F27D17/00

    摘要: The method for treating the dust entails the following steps:(a) supplying a combination of dust, a reducing agent and flux to a gastight electrothermic smelting furnace,(b) smelting, reducing and volatilizing certain metals in the smelting furnace,(c) tapping of an inert slag phase and a liquid metal phase from the smelting furnace,(d) continuous removal from the smelting furnace of a gas phase containing chiefly CO-gas, metal fumes, sulphur, chlorides and fluorides together with entrained unreacted dust,(e) further treatment of the gas phase.The process produces an inert slag phase which can be safely deposited in a landfill. The process also allows for recovery of valuable metal components from the dust.

    Apparatus for plugging holes in an electric smelting furnace or the like
    4.
    发明授权
    Apparatus for plugging holes in an electric smelting furnace or the like 失效
    用于在电冶炼炉等中堵塞孔的装置

    公开(公告)号:US4072250A

    公开(公告)日:1978-02-07

    申请号:US705573

    申请日:1976-07-15

    IPC分类号: C21B7/12 F27D3/15

    CPC分类号: C21B7/12 F27D3/1536

    摘要: An apparatus for plugging holes in an electric smelting furnace or the like is disclosed. The apparatus comprises first and second tubular members, the second being adapted to be secured to the first by means of two assemblies mounted exterior of the tubes each of which may serve as either a release or a pivotal element about which the second tubular member may be rotated to facilitate loading and/or cleaning of either tubular member. A piston is provided which travels substantially the longitudinal extent of the first tubular member to extrude, under pressure, a material suitable for plugging a hole.

    摘要翻译: 公开了一种用于在电冶炼炉等中堵塞孔的装置。 该装置包括第一管状构件和第二管状构件,第二管状构件适于通过安装在管外部的两个组件固定到第一管组件,每个组件可用作释放或枢转元件,第二管状构件 旋转以促进任何管状构件的装载和/或清洁。 提供活塞,其基本上沿着第一管状构件的纵向延伸,在压力下挤压适合于堵塞孔的材料。

    Electric toilet
    5.
    发明授权
    Electric toilet 有权
    电动马桶

    公开(公告)号:US6052836A

    公开(公告)日:2000-04-25

    申请号:US214517

    申请日:1999-01-21

    申请人: Thor Pedersen

    发明人: Thor Pedersen

    IPC分类号: A47K11/02

    CPC分类号: A47K11/023

    摘要: An electric toilet comprising a cabinet or housing (10), an opening (16) in the top side of the cabinet, a lid (14) assigned to the opening (14), an upper bowl (18) arranged inside the opening, which bowl is openable downwards, a combustion chamber (32) arranged beneath the upper bowl (18) with a combustion space (34) and provided with an opening (36) directed upwards, assigned to which opening is a lid (38), heating coils (44) arranged in the combustion space (34) and an evacuation device (48, 50, 52) connected to the combustion space (34). The invention is characterized in that at least the combustion space's (34) lower part is formed principally spherically and that the heating coils (44) are arranged in the upper part of the combustion space round its circumference.

    摘要翻译: PCT No.PCT / SE97 / 01252 Sec。 371日期1999年1月21日 102(e)1999年1月21日PCT PCT 1997年7月10日PCT公布。 出版物WO98 / 02079 日本1998年1月22日一种电动马桶,其包括机壳或壳体(10),在机壳顶部的开口(16),分配给开口(14)的盖子(14),布置成 在所述开口内,所述碗可向下打开;燃烧室(32),其布置在所述上​​碗(18)下方的燃烧空间(34)上,并且设置有朝上的开口(36),所述开口指向所述开口是盖( 38),布置在燃烧空间(34)中的加热线圈(44)和连接到燃烧空间(34)的抽空装置(48,50,52)。 本发明的特征在于至少燃烧空间(34)的下部主要是球形地形成的,并且加热线圈(44)被布置在燃烧空间的圆周周围的上部。

    Foldable container
    6.
    发明授权
    Foldable container 失效
    可折叠集装箱

    公开(公告)号:US5611449A

    公开(公告)日:1997-03-18

    申请号:US335852

    申请日:1994-11-09

    申请人: Thor Pedersen

    发明人: Thor Pedersen

    CPC分类号: B65D88/522 E04B1/3445

    摘要: A foldable container comprising a floor (11), a roof (10), and at least two side-walls (12-15). Each one of the side walls (12-15) is connected with the floor (11) through link members (27) forming a connection between the edge side (20) of the floor and the lower edge side of respective side wall (12-15). The link members allow on one hand turning the wall between a horizontal position and a vertical position, and on the other hand displacing the wall in its own plane.

    摘要翻译: PCT No.PCT / SE93 / 00387 Sec。 371日期:1994年11月9日 102(e)日期1994年11月9日PCT提交1993年5月4日PCT公布。 公开号WO93 / 23315 PCT 日期:1993年11月25日一种包括地板(11),屋顶(10)和至少两个侧壁(12-15)的可折叠容器。 每个侧壁(12-15)通过连接构件(27)与地板(11)连接,形成地板的边缘侧(20)和相应的侧壁(12- 15)。 连接构件允许一方面在水平位置和垂直位置之间转动壁,另一方面使壁在其自身的平面中移动。

    Control system for electrical furnaces
    7.
    发明授权
    Control system for electrical furnaces 失效
    电炉控制系统

    公开(公告)号:US3936588A

    公开(公告)日:1976-02-03

    申请号:US529264

    申请日:1974-12-04

    摘要: A computerized control system for receiving information concerning the operating parameters in an electrical furnace, and for controlling the feeding of corrective and additive charge to the furnace, for controlling the position of the electrodes, and for controlling the power consumed by the furnace. The system includes a discharge hopper for the selective discharge of solid materials to electric smelting furnaces. The hopper comprises a transit part and a reservoir part. Because of its physical construction, the transit part will empty before the reservoir part, but when the transit part is empty the contents of the reservoir part will follow automatically.

    摘要翻译: 一种计算机化控制系统,用于接收关于电炉中的操作参数的信息,并且用于控制向炉提供校正和添加剂的进料,以控制电极的位置,并控制炉的消耗功率。 该系统包括用于将固体材料选择性地排放到电冶炼炉的排料斗。 料斗包括运输部分和储存部分。 由于其物理结构,运输部分将在油库部分之前清空,但当运输部分为空时,油库部分的内容物将自动关闭。