• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Summary The present invention relates to a device for comprising a cathodic vessel (1), an electric cold for generating a direct current stable of aluminum, (2), between the cathodic vessel (1) from a bath (5), a formed in the area of the anode means (2). (9), which comprises a sensor anode means and the anode means (2) for extraction (4), as during the production of narrow aluminum (3) and a component (6) for breaking a crust. component driven by a pneumatic piston rod (8) (6) present in a pneumatic cy (12) comprises a chisel (7), a cylinder in the cylinder (7) for detecting strokes, and which is electrically connected to a connection on an electronics unit. (ll). (ll) are connected to the cathodic vessel (l) and the cathodic vessel (l) and Another connection to the electronics unit for generating a single-shaft current between the chisel (9) supplies the potential and / or the alternating current between them. The chisel (9) has both means for forming an electrode within the bottom area and an electronically connecting part for connecting the electrode to a connection on the electronics unit (11).
    公开号:SE1050732A1
    申请号:SE1050732
    申请日:2008-12-11
    公开日:2010-07-02
    发明作者:Peter Paalsson
    申请人:Bosch Gmbh Robert；
    IPC主号:
    专利说明:

    20 25 30 35 2 and thus the movement of the chisel is controlled by means of the chisel's electronic connection to the vessel, so that a thermal load on the chisel during the breaking of the crust and the immersion in the melt is minimized.
    U.S. Pat. No. 4,857,157 discloses a method for controlling the supply of alumina to the Hall-Heroult basin by measuring the level of bath and melting in the vessel. For this purpose, the stroke of a component's chisel for breaking the crust is measured via an electrical contact and a resistor. When the chisel then has contact with the bath, the potential of the resistance suddenly increases, and such a blow to the chisel is registered. By estimating the height of the layer of molten aluminum, it becomes possible to calculate the height of the bath.
    The disadvantage of the prior art is that the level of the molten aluminum layer cannot be measured but only estimated.
    Due to leakage currents from the bath, the electric potential at the upper end of the chisel is higher than at the bottom. Because the electrical potential is measured at the upper end of the chisel, this causes measurement inaccuracies. Another problem is that the voltage from the electrical source varies.
    Object of the invention It is therefore the object of the present invention to provide a device for measuring the level of the layer of molten aluminum with high accuracy.
    This task is solved in that the chisel comprises aids for generating an electrode within the bottom area and electrical connecting means for connecting the electrode to a connection on an electronics unit. This makes it possible to measure the level of the layer of molten aluminum in the vessel, since the measuring point is stored to the bottom area of the chisel and creep currents have no influence on the measurement.
    In a further development of the present invention, the electrical connecting means are arranged in a recess along the center axis of the chisel, and for this purpose the upper protection of the chisel is electrically insulated. Consequently, the chisel can be made of a conventional material while an accurate measurement is guaranteed.
    In a further embodiment of the present invention, the electrical connection means are formed by an electrical cable.
    The advantage here is that a connection to one connection on the electrical unit can be achieved with little manufacturing effort or at low manufacturing cost.
    In a further development of the present invention, the electrical connecting means are formed by a chisel rod, which is arranged in a recess in the chisel and which serves as a mechanical stay element for the chisel tube and the upper protection of the chisel. This makes it possible to obtain a stable embodiment of the chisel.
    In another embodiment of the present invention, the chisel consists of an electrical insulating material. The advantage here is that such a chisel becomes conductive only on desired surfaces.
    In a further development of the invention, the side walls of the chisel are electrically insulated. It is advantageous in this case that creep currents can be overcome with little effort, as a conventional chisel in combination with an insulating jacket can be used.
    In another embodiment of the invention, the chisel is connected to the piston rod by means of a mechanical connection, which consists of an electrically conductive material. By this measure a connection in the chisel with the electronic unit can be realized with little effort, as this connection can be made by means of the pneumatic cylinder.
    In a further development of the invention, the insulating material consists of a ceramic substance. This achieves reliable insulation.
    In another embodiment of the invention, the sensor in question is a resistance sensor. The advantage is that the stroke of the piston rod of the pneumatic cylinder and thereby the stroke of the chisel can be registered accurately and with little effort.
    Description of the drawings The present invention will now be described in more detail against the background of the embodiments and with reference to the drawings, in which Fig. 1 schematically shows the device for producing aluminum in accordance with a first embodiment of the invention, Fig. 2 schematically shows the device for producing aluminum corresponding to a second embodiment of the invention, and Fig. 3 schematically shows the device for producing aluminum corresponding to a third embodiment of the invention.
    Fig. 1 shows the device for producing aluminum in accordance with the present invention, comprising a cathodic vessel 1 and anode means 2, which device are connected to a - not shown - electrical source. This electric source generates an electric current between the cathodic vessel 1 and the anode means 2 for generating the effect in a Hall-Heroult basin in a bath 4, in which aluminum is present in a compound. As a result, a layer of pure aluminum 3 accumulates in the bottom area of the cathodic vessel 1, while a crust 5 covers the bath 4 in the vicinity of the anode means 2. To break up this crust 5, a component 6 is arranged near the cathodic vessel 1. This component 6 comprises a pneumatic cylinder 7 with a piston rod 8, which is mechanically connected to a chisel 9 via a mechanical connecting part 10 of an electrically conductive material. The chisel 9 is furthermore electronically connected to an electronic unit 11 by means of the mechanical connecting part 10 and the piston rod 8. , while another connection on the electronics unit 11 is connected to the cathodic vessel 1. Within the upper area of the pneumatic cylinder 7, in addition, a linear sensor 12 is placed for detecting the stroke of the piston rod 8 and the chisel 9. To avoid creep currents through the side walls of the chisel 9, a casing of an insulating material 13 has been made available.
    When producing pure aluminum 3 from a bath 4 via a Hall-Heroult basin, the rising crust 5 is broken up by means of the chisel 9. The stroke of the chisel, which is moved via the pneumatic cylinder 7, is controlled by the electronic unit 11. a relatively low voltage is pressed on the chisel 9. Depending on the electric current measured at the input of the electronic unit 11, which is connected to the cathodic vessel 1, bake. within the area of the crust 5, the conductivity is very maximum in the layer of pure aluminum 3, where the chisel 9 must be quickly retracted due to the high temperature. When the linear sensor 12 detects the stroke of the piston rod 8 and the chisel 9, the level of the different layers can be measured in combination with the measured electric current through the electronics unit 11.
    In contrast, in Fig. 2 only the inner and bottom area of the chisel 9 are electrically connected to the electronics unit 11 by means of a chisel rod 15 in a recess 16 in the chisel 9 while an air gap is present between the side walls of the chisel 9 and the chisel bar 15. Creep currents between the side wall of the chisel 9 clarified by a resistance. In addition, the upper protection 14 between the chisel 9 and the connecting means consists of an insulating material.
    In Fig. 3, the chisel 9 is made entirely of an insulating material 13, while the electronic connection to the electronic unit 11 is realized by means of a cable 17, which extends in the inner area of the chisel 9. Again, the upper protection 14 of the chisel 9 consists of an insulating material. 10 15 6 List of male reference numerals OO 1OWU "I» J> UOI ) I- 11 12 13 14 15 16 17 cathodic male anode medium aluminum layer layer bath crust component pneumatic cylinder piston rod chisel mechanical connector electronics unit linear sensor insulation material chisel of insulating material consisting of upper protection chisel rod recess cable
    权利要求:
    Claims (9)
    [1]
    An apparatus for producing aluminum, comprising a cathodic vessel (1), (2), generating a direct current between the cathodic vessel (1) the anode means (2) (3) from a bath (4), (5), which during manufacture are formed in the area of the anode means (2), (9), (7), which have a sensor the linder (7) is dangerously connected to a connection on an electronics unit (11), (11) is connected to the cathodic vessel ( 1) for generating one and the cathodic vessel (1) anode means an electric source for and for the extraction of molten aluminum and a component (6) for breaking a crust driven via a pneumatic cylinder (12) existing piston rod (8) with a chisel for detecting a cycle, and which electrically while another connection on the electronics unit alternating current between the chisel (9) and for measuring the potential and / or the alternating current between the two, comprises means for forming an electrode within the bottom area. characterized by the fact that the chisel (9) it and electronic connect electrical means for connecting the electrode to one connection on the electronics unit (11).
    [2]
    Device according to claim 1, in that the electronic pre- (16) upper protections are characterized, along the chisel (14) for which the binding means are arranged in a recess (9) center axis, and that the chisel (9) is electrically insulated.
    [3]
    Device according to claim 2, that the electronic pre- (17). k e n n e t e c k n a d there, the bonding agents are formed by an electric cable
    [4]
    Device according to claim 2, in that the electronic pre- (15), characterized by, the connecting means are formed by a chisel rod which is arranged in a recess (16) in the chisel (9) and which serves as a mechanical connecting element. for the chisel tube and the upper protection of the chisel (9) (14).
    [5]
    Device according to one of Claims 2 to 4, characterized in that the chisel (9) consists of an electrical insulating material (13). 10 8
    [6]
    Device according to claim 1, characterized in that the side walls of the chisel (9) are electrically insulated.
    [7]
    Device according to one of the preceding claims, in which the chisel (9) is connected to the piston rod (8) by means of a mechanical connecting part (10), which consists of an electrically conductive material.
    [8]
    Device according to one of the preceding claims, characterized in that the insulating material (13) consists of a ceramic material.
    [9]
    Device according to any one of the preceding claims, (12) is a counterclaim that the sensor is a position sensor.
    类似技术:
    公开号 | 公开日 | 专利标题
    SE1050732A1|2010-07-02|Device for measuring the metal level in a reduction basin
    US7548825B2|2009-06-16|Method and apparatus for current and temperature measurement in an electronic power circuit
    CN105794094B|2018-09-28|Semiconductor device
    US10509055B2|2019-12-17|Method for contacting at least two metal electrodes and arrangement
    AU2012258832B2|2017-06-29|Electric induction furnace with lining wear detection system
    CN101048670A|2007-10-03|Kelvin connector including temperature sensor
    RU2009123476A|2010-12-27|ELECTROLYZER FOR PRODUCING ALUMINUM CONTAINING MEANS FOR REDUCING VOLTAGE REDUCTION
    MX2018000534A|2018-05-07|Method and device for electrical force measurement by means of an insulating thin layer.
    SE449132B|1987-04-06|DC LIGHT REAR OR PUMP FOR HEATING
    WO2002097378A1|2002-12-05|Method of measuring slag layer thickness or slag layer thickness and molten metal layer surface level position, and measuring device therefor
    CN1473263A|2004-02-04|Device for electromagnetic detection of level of material which is or has been made conductive, in particular molten glass
    KR20060009977A|2006-02-02|Apparatus of measuring slag thickness
    US20200191486A1|2020-06-18|Electric Induction Furnace With Lining Wear Detection System
    US20200378840A1|2020-12-03|Sealing Device for a Cold-End Part of a Thermocouple Wire Arrangement with a Mineral-Insulated Cable and Thermocouple
    US10401090B2|2019-09-03|Method and arrangement for measurement of electrode paste in an electrode column of an electric arc furnace
    KR20130051147A|2013-05-20|Sensor for measuring temperature of vehicle engine
    JP2010025464A|2010-02-04|Unit for measuring molten material surface level in vertical type furnace and measuring method therefor
    SE461003B|1989-12-11|DEVICE FOR SELF-BAKING ELECTRODS
    Kaenel et al.2016|Copper bars for the Hall-Héroult process
    JP2016175707A|2016-10-06|Elevator control cable and inspection device thereof
    JP2008202974A|2008-09-04|Method of detecting disconnection in power supply cable
    JP2005226105A|2005-08-25|Method and instrument for measuring level of molten material in blast furnace
    JP6313155B2|2018-04-18|heater
    US20180168025A1|2018-06-14|Electronic device comprising a printed circuit board with improved cooling
    JP2015206615A|2015-11-19|Water level detector
    同族专利:
    公开号 | 公开日
    NO345594B1|2021-05-03|
    CA2709206A1|2009-06-18|
    NO20100954L|2010-08-30|
    US20110073466A1|2011-03-31|
    CA2709206C|2016-03-15|
    SE535088C2|2012-04-10|
    WO2009074319A1|2009-06-18|
    DE102007059962B3|2008-12-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3305236C2|1983-02-10|1985-11-21|Schweizerische Aluminium Ag, Chippis|Device for controlling an impact device of a melt flow electrolysis cell and method for operating the device|
    FR2614320B1|1987-04-21|1989-06-30|Pechiney Aluminium|METHOD AND DEVICE FOR CONTROLLING THE ADDITIONS OF SOLID ELECTROLYSIS IN ELECTROLYSIS TANKS FOR THE PRODUCTION OF ALUMINUM.|
    DE29708312U1|1997-05-09|1997-07-17|Festo Kg|Crust breaker cylinder|
    US6503701B1|1999-06-15|2003-01-07|Biosensor Systems Design, Inc.|Analytic sensor apparatus and method|
    US6436270B1|1999-07-19|2002-08-20|Ab Rexroth Mecman|Method and device for controlling the movement of a feeding and breaking chisel in an aluminum production cell|
    DE102004033964B3|2004-07-14|2006-03-30|Bosch Rexroth Ag|Device for operating a crust-breaking arrangement for metal melts comprises a valve arrangement having a valve for withdrawing a piston rod and for forming a connection to an injection pressure source |CN105350024B|2015-11-23|2018-11-16|中国铝业股份有限公司|A kind of aluminium electrolysis anode thickness in slot measuring device|
    CN110168143B|2017-06-15|2022-03-08|俄铝工程技术中心有限责任公司|Method and apparatus for electrolyte crust breaking by split plasma cutting|
    FR3077018B1|2018-01-24|2020-01-24|Rio Tinto Alcan International Limited|DRILLING DEVICE COMPRISING A TUBULAR SLEEVE FIXED TO A CYLINDER|
    CN112123307A|2020-09-16|2020-12-25|江西铜业（清远）有限公司|Novel storage rack|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102007059962A|DE102007059962B3|2007-12-11|2007-12-11|Electrolytic aluminum production plant, includes cutting tool for breaking up crust around anode having base region forming electrode for accurate measurement of molten aluminum layer thickness|
    PCT/EP2008/010533|WO2009074319A1|2007-12-11|2008-12-11|Device for measuring the metal level in a reduction basin|
    [返回顶部]