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51. 发明授权

US2713024A Process for the continuous feeding of electrolytic aluminum cells 失效
标题翻译：电解铝电池连续供电的方法
公开(公告)号：US2713024A
公开(公告)日：1955-07-12
申请号：US22548251
申请日：1951-05-10
申请人： MONTEDISON SPA
发明人： GIOVANNI MANTOVANELLO
IPC分类号： C25C3/14
CPC分类号： C25C3/14

52. 发明授权

US1837070A Apparatus for charging aluminum producing furnaces 失效
标题翻译：用于生产铝制炉的装置
公开(公告)号：US1837070A
公开(公告)日：1931-12-15
申请号：US41723629
申请日：1929-12-28
申请人： ERNST ROTH
发明人： ERNST ROTH
IPC分类号： C25C3/14 , F27D3/18
CPC分类号： C25C3/14 , F27D3/18 , Y02P10/262

53. 发明授权

US11028494B2 Device for controlled feeding an electrolytic cell for producing aluminum (variants) 有权
公开(公告)号：US11028494B2
公开(公告)日：2021-06-08
申请号：US15501393
申请日：2015-05-05
申请人： United Company RUSAL Engineering and Technology Centre, LLC
发明人： Vladimir Petrovich Batorshin , Aleksandr Olegovich Gusev , Vladimir Viktorovich Yurkov
IPC分类号： C25C3/14
摘要： The invention relates to nonferrous metallurgy, in particular to the electrolytic production of aluminum, namely to the devices for feeding electrolytic cells, and can be used to feed alumina, aluminum fluoride, crushed electrolyte to electrolytic cells for producing aluminum. A device for feeding an electrolytic cell for producing aluminum comprises a hopper, a metering chamber with loading windows located around a perimeter of an upper part of the metering chamber above the hopper base, a valve stem with a pneumatic actuator, an upper locking element rigidly fixed to the valve stem at the upper part of the metering chamber, wherein the upper locking element is positioned between upper and lower edges of loading windows, when the stem is in an upper position, and a lower locking element is mounted on an end of the valve stem. According to a first variant of the present invention, the device is characterized in that at least one metering shuttle valve is provided in the upper part of the metering chamber above the upper locking element, and the metering shuttle valve is rigidly fixed to the valve stem so that its upper end in an initial position of the valve stem is located below the upper edge of the loading windows. According to a second variant of the present invention, the device is characterized in that, inside the hopper above the upper locking element, the device comprises at least one circular rib fixed into the upper part of the metering chamber, at least one rib and at least one baffle plate are fixed to the hopper walls so that the material can pass through gaps between plate ends and the walls of the hopper and the metering chamber. The invention provides for the better stability of feeding and may improve processing performance of an electrolytic cell.

54. 发明授权

US10472725B2 Method for controlling an alumina feed to electrolytic cells for producing aluminum 有权
公开(公告)号：US10472725B2
公开(公告)日：2019-11-12
申请号：US15320233
申请日：2014-06-19
申请人： United Company RUSAL Engineering and Technology Centre, LLC
发明人： Dmitriy Aleksandrovich Simakov , Aleksandr Olegovich Gusev , Kirill Borisovich Bakin
IPC分类号： C25C3/20 , C25C3/14
摘要： The invention relates to nonferrous metallurgy and may be suitable for controlling the feed of alumina to electrolytic cells for producing aluminum to maintain the alumina concentration in the electrolytic melt equal or close to the saturation value. To maintain the alumina concentration within the set range, reduced voltage U or pseudo-resistance R is measured and recorded at fixed time intervals. Underfeeding or overfeeding phases occur compared to a theoretical alumina feeding rate during electrolysis, wherein the duration of underfeeding phases is based on the alumina concentration in the electrolytic melt, and the duration of overfeeding phases is based on the change of one or more electrolytic cell parameters being recorded: reduced voltage, U, pseudo-resistance, R, rates of reduced voltage, dU/dt, pseudo-resistance, dR/dt, change. Adjustments to the anode-cathode distance to maintain the electrolytic cell energy balance may be performed during any of the feeding phases.

55. 发明申请

US20180209056A1 SYSTEMS AND METHODS OF PROTECTING ELECTROLYSIS CELL SIDEWALLS 审中-公开
公开(公告)号：US20180209056A1
公开(公告)日：2018-07-26
申请号：US15928889
申请日：2018-03-22
申请人： Alcoa USA Corp.
发明人： Xinghua Liu , Robert A. DiMilia , Joseph M. Dynys , Jeffrey S. Martello
IPC分类号： C25C3/20 , C25C3/14 , C25C3/08
CPC分类号： C25C3/20 , C25C3/08 , C25C3/12 , C25C3/14 , C25C7/005 , C25C7/025
摘要： Broadly, the present disclosure relates to sidewall features (e.g. inner sidewall or hot face) of an electrolysis cell, which protect the sidewall from the electrolytic bath while the cell is in operation (e.g. producing metal in the electrolytic cell).

56. 发明申请

US20160230297A1 SYSTEMS AND METHODS FOR PURIFYING ALUMINUM 审中-公开
标题翻译：用于净化铝的系统和方法
公开(公告)号：US20160230297A1
公开(公告)日：2016-08-11
申请号：US15041899
申请日：2016-02-11
申请人： ALCOA INC.
发明人： David H. DeYoung , Xinghua Liu , Brent L. Mydland , James Wiswall
IPC分类号： C25C3/24 , C25C3/12 , B22D21/00 , C25C7/00 , C25C7/02 , C25C3/18 , C25C3/14
CPC分类号： C25C3/24 , B22D21/007 , C25C3/08 , C25C3/12 , C25C3/125 , C25C3/14 , C25C3/18 , C25C7/005 , C25C7/025
摘要： The application is directed towards methods for purifying an aluminum feedstock material. A method provides: (a) feeding an aluminum feedstock into a cell (b) directing an electric current into an anode through an electrolyte and into a cathode, wherein the anode comprises an elongate vertical anode, and wherein the cathode comprises an elongate vertical cathode, wherein the anode and cathode are configured to extend into the electrolyte zone, such that within the electrolyte zone the anode and cathode are configured with an anode-cathode overlap and an anode-cathode distance; and producing some purified aluminum product from the aluminum feedstock.
摘要翻译：本申请涉及纯化铝原料的方法。一种方法提供：（a）将铝原料进料到电池中（b），通过电解质将电流引导到阳极中并进入阴极，其中阳极包括细长的垂直阳极，并且其中阴极包括细长的垂直阴极，其中所述阳极和阴极被配置为延伸到所述电解质区域中，使得在所述电解质区域内，所述阳极和阴极被配置为具有阳极 - 阴极重叠和阳极 - 阴极距离; 并从铝原料生产一些纯化的铝产品。

57. 发明授权

US09382079B2 Conveyor for transporting powder, and a method for conveying powder 有权
标题翻译：用于输送粉末的输送机，以及输送粉末的方法
公开(公告)号：US09382079B2
公开(公告)日：2016-07-05
申请号：US14280858
申请日：2014-05-19
申请人： ALSTOM Technology Ltd
发明人： Odd E. Bjarno
IPC分类号： B65G53/18 , B65G53/40 , B65G53/20 , B65G53/60 , C25C3/14 , B65G53/16
CPC分类号： B65G53/40 , B65G53/16 , B65G53/20 , B65G53/60 , C25C3/14
摘要： A conveyor (10) for transporting powder from an inlet point (14) to at least one discharge point (20) comprises a fluidized bed transport space (12) and a fluidization gas supply space (16), the fluidized bed transport space (12) being separated from the fluidization gas supply space (16) by a gas permeable wall (18); a gas outlet (22) for removing fluidization gas from the transport duct (12); means (24) for separating dust from the removed fluidization gas; and means (26) for returning the separated dust to the powder proximate the discharge point (20). In a preferred embodiment, the separated fines dust is returned to, and homogenized into, the powder in a lower portion of a cyclone, which is located at the discharge point.
摘要翻译：用于将粉末从入口点（14）输送到至少一个排放点（20）的输送机（10）包括流化床输送空间（12）和流化气体供应空间（16），所述流化床输送空间）通过透气壁（18）与流化气体供应空间（16）分离; 用于从输送管道（12）去除流化气体的气体出口（22）; 用于从去除的流化气体中分离灰尘的装置（24）; 以及用于将分离的灰尘返回到靠近排放点（20）的粉末的装置（26）。在优选的实施方案中，分离的细粉尘返回到位于排放点的旋风分离器的下部的粉末并均质化。

58. 发明授权

US08961773B2 Method of producing aluminium in an electrolysis cell 有权
标题翻译：在电解池中生产铝的方法
公开(公告)号：US08961773B2
公开(公告)日：2015-02-24
申请号：US12997661
申请日：2009-06-05
申请人： Sylvain Fardeau , Benoît Sulmont
发明人： Sylvain Fardeau , Benoît Sulmont
IPC分类号： C25C3/06 , C25C3/14 , C25C3/20
CPC分类号： C25C3/20 , C25C3/14
摘要： The invention relates to a method of producing aluminum in an electrolysis cell, which includes setting up a succession of control periods of duration T, identifying perturbative tending operations on the cell that can introduce superfluous alumina in the electrolytic bath, noting the performance of the perturbative tending operations, determining a regulation feed rate B(k′) for each control period k′ and setting a specified feed rate SR(k′) equal to M(k′)×B(k′), where M(k′) is a predetermined modulation factor that modulates the regulation feed rate B(k′) so as to take into account a reduction of the needs of the cell induced by the superfluous alumina. The method of the invention makes it possible to significantly reduce the rate of occurrence of anode effects.
摘要翻译：本发明涉及一种在电解池中生产铝的方法，其包括建立持续时间T的一系列控制周期，识别可在电解槽中引入多余氧化铝的电池上的扰动倾向操作，注意扰动的性能确定每个控制周期k'的调节进给速率B（k'），并设定等于M（k'）×B（k'）的指定进给速率SR（k'），其中M（k'）是调节调节进料速率B（k'）的预定调制因子，以便考虑由多余氧化铝诱导的细胞需求的降低。本发明的方法可以显着降低阳极效应的发生率。

59. 发明授权

US07504016B2 Method and system for controlling addition of powdery materials into the bath of an electrolysis cell for the production of aluminium 失效
标题翻译：用于控制将粉末材料添加到用于生产铝的电解槽的浴中的方法和系统
公开(公告)号：US07504016B2
公开(公告)日：2009-03-17
申请号：US10574522
申请日：2004-09-28
申请人： Claude Ritter , Benoît Sulmont
发明人： Claude Ritter , Benoît Sulmont
IPC分类号： C25C3/14
CPC分类号： C25C3/14
摘要： This invention relates to a method for controlling additions of powder materials into an electrolytic cell designed for the production of aluminium by fused bath electrolysis. The method according to the invention, which can easily be automated, can be used to maintain monitoring of operation of the feed even during anode effects.
摘要翻译：本发明涉及一种控制粉末材料添加到通过熔池电解生产铝的电解槽中的方法。即使在阳极效应期间，根据本发明的可以容易地自动化的方法也可用于维持饲料操作的监测。

60. 发明申请

US20050211552A1 Compact service module for use in electrolytic aluminum production plants 有权
标题翻译：用于电解铝生产工厂的紧凑型维修模块
公开(公告)号：US20050211552A1
公开(公告)日：2005-09-29
申请号：US11059301
申请日：2005-02-17
申请人： Alain Acker , Patrick Delescluse , Benoit Morel
发明人： Alain Acker , Patrick Delescluse , Benoit Morel
IPC分类号： C25C3/06 , C25C3/10 , C25C3/14 , C25C7/00
CPC分类号： C25C3/14 , C25C3/06 , C25C3/10 , C25C7/00
摘要： A tending module (7) for a series of electrolytic cells (2) to be used for the production of aluminum by fused bath electrolysis including a frame (8) that can be fixed to a trolley (6) and a turret (9) fitted on the frame (8) so as to pivot about a vertical axis A, and equipped with a set of tools including a crust breaker (11), a bucket shovel (12), at least one first anode clamp (13) and a hopper (15) fitted with a retractable duct (16), and a balcony or a cab (18) having controls that will be used to maneuver the module and the tools, and a control station (19) from which an operator can actuate the controls. The module according to the invention is characterized in that, taking a first plane P1 and a second plane P2 perpendicular to each other and to the turret (9) plane Pt and intersecting on the A axis, the center C of the control station (19) is located at a determined distance C1 from plane P1 and a determined distance C2 from plane P2, the center of the bucket shovel (12) and the center of the first anode clamp (13) are located on the opposite side of the plane P1 from the control station (19), and the crust breaker (11) and the retractable duct (16) are located between the control station (19) and the row formed by the bucket shovel (12) and the first anode clamp (13).
摘要翻译：一种用于通过熔池电解生产铝的一系列电解槽（2）的倾斜模块（7），包括可固定到手推车（6）和转台（9）上的框架（8）在框架（8）上围绕竖直轴线A枢转，并且配备有一组工具，其包括外壳断屑器（11），铲斗铲斗（12），至少一个第一阳极夹具（13）和料斗（15），以及具有用于操纵所述模块和所述工具的控制装置的阳台或驾驶室（18），以及控制站（19），操作者可从该控制台致动所述控制装置。根据本发明的模块的特征在于，将彼此垂直的第一平面P 1和第二平面P 2以及与A轴交叉的转台（9）平面Pt，控制站的中心C （19）位于从平面P 1确定的距离C 1和从平面P 2确定的距离C 2，铲斗（12）的中心和第一阳极夹（13）的中心位于来自控制站（19）的平面P 1的相对侧，以及地壳断路器（11）和可伸缩管道（16）位于控制站（19）和由铲斗（12）形成的排和第一阳极夹（13）。

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