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1. 发明专利

JP2008202867A Arc furnace electrode lifting device 审中-公开
标题翻译：弧焊电极提升装置
公开(公告)号：JP2008202867A
公开(公告)日：2008-09-04
申请号：JP2007040208
申请日：2007-02-21
申请人： Toshiba Mitsubishi-Electric Industrial System Corp , 東芝三菱電機産業システム株式会社
发明人： ASAKA TAKATOSHI
IPC分类号： F27D11/08 , C21C5/52 , F27B3/20 , F27B3/28 , H05B7/148
CPC分类号： Y02P10/216 , Y02P10/256 , Y02P10/259
摘要： PROBLEM TO BE SOLVED: To provide an arc furnace electrode lifting device capable of saving energy of furnace operation, and capable of shortening operation time. SOLUTION: This arc furnace electrode lifting device is composed of an impedance constant control means 82 controlling so that impedance between an electrode 4 and a scrap 5 becomes constant, a constant current control means 83 controlling so that an arc current becomes a preset value, a switching means 84 switching the impedance constant control means 82 and the constant current control means 83, an electric power consumption checking means 86 determining whether or not electric power consumption of an arc furnace becomes a predetermined value or more, a flicker checking means 87 determining whether or not a flicker quantity becomes a predetermined value or less for a predetermined time, a furnace state checking means 88 determining whether or not both arc voltage and the arc current become a predetermined value or less for a predetermined time, and an arithmetic operation means 89 arithmetically processing a determining result of the electric power consumption checking means 86, the flicker checking means 87 and the furnace state checking means 88. The switching means 84 is operated by a result of the arithmetic operation means 89. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够节省炉子操作能量并能够缩短操作时间的电弧炉电极提升装置。解决方案：该电弧炉电极提升装置由控制电极4和废料5之间的阻抗变得恒定的阻抗常数控制装置82组成，恒定电流控制装置83控制电弧电流变为预设值，开关装置84切换阻抗常数控制装置82和恒流控制装置83;电力消耗检查装置86，确定电弧炉的电力消耗是否达到预定值以上;闪烁检查装置 87确定预定时间内闪烁量是否变为预定值或更小，炉状态检查装置88确定电弧电压和电弧电流是否在预定时间内变为预定值或更小，以及算术操作装置89对电力消耗检查装置86的确定结果进行算术处理，th e闪烁检查装置87和炉状态检查装置88.切换装置84由算术运算装置89的结果运行。版权所有：（C）2008，JPO＆INPIT

2. 发明专利

JP2007026799A Electrode elevation controller for arc furnace 有权
标题翻译：电弧炉电极高度控制器
公开(公告)号：JP2007026799A
公开(公告)日：2007-02-01
申请号：JP2005205328
申请日：2005-07-14
申请人： Toshiba Mitsubishi-Electric Industrial System Corp , 東芝三菱電機産業システム株式会社
发明人： NAKAMURA KAORU , ASAKA TAKATOSHI
IPC分类号： H05B7/12 , F27B3/28 , F27D11/10 , H05B7/152
CPC分类号： Y02P10/256 , Y02P10/259
摘要： PROBLEM TO BE SOLVED: To provide an electrode elevation controller for an arc furnace that has a brake operation monitoring function for determining whether or not a brake is normally operated. SOLUTION: The arc furnace supplies power to an arc electrode 3 inserted into an arc furnace body 2, controls elevation of the arc electrode 3 by a motor 5 provided with a brake, and heats and melts scrap 1 by an arc between the scrap 1 filled in the arc furnace body 2 and the end of the arc electrode 3. The electrode elevation controller 7 for controlling the elevation of the arc electrode 3 is provided with a brake operation monitoring circuit 12 for monitoring an operating state, when the brake 8 is operated by a brake operation signal based on a stop signal emitted to the motor 5 provided with the brake. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有用于确定制动器是否正常操作的制动操作监视功能的电弧炉的电极升高控制器。解决方案：电弧炉向插入到电弧炉体2中的电弧电极3供电，通过设置有制动器的电动机5控制电弧电极3的升高，并且通过弧之间的电弧加热并熔化废料1 用于控制电弧电极3的升高的电极升高控制器7设置有用于监视工作状态的制动操作监视电路12，当制动器 8由基于向设置有制动器的马达5发出的停止信号的制动操作信号进行操作。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2014060112A Arc furnace electrode lifting device 有权
标题翻译：弧焊电极提升装置
公开(公告)号：JP2014060112A
公开(公告)日：2014-04-03
申请号：JP2012205784
申请日：2012-09-19
申请人： Toshiba Mitsubishi-Electric Industrial System Corp , 東芝三菱電機産業システム株式会社
发明人： ASAKA TAKATOSHI
IPC分类号： H05B7/11 , F27D11/08 , H05B7/109 , H05B7/148
CPC分类号： Y02P10/256 , Y02P10/259
摘要： PROBLEM TO BE SOLVED: To provide an arc furnace electrode lifting device for shortening operation time and reducing power costs.SOLUTION: An arc furnace electrode lifting device comprises: an arc current setting unit; an electrode migration distance setting unit for setting an electrode migration distance after a lapse of prescribed time from the start of operation; an electrode migration distance calculation unit for calculating an actual migration distance L of an electrode; an impedance constant control unit for controlling lifting drive of the electrode so that impedance between the electrode and a scrap is constant on the basis of an arc current setting value Is as a reference value; a current constant control unit for controlling the lifting drive of the electrode so that actual arc current I is made to be the setting value; a control switching unit for selectively switching the impedance constant control unit and the current constant control unit; an electrode lifting electric motor drive unit for controlling power for driving an electrode lifting electric motor by receiving a control signal from the impedance constant control unit or the current constant control unit; and an electrode migration distance check unit for comparing the actual migration distance and the set migration distance, where the control switching unit is activated depending on a result of the electrode migration distance check unit.
摘要翻译：要解决的问题：提供一种电弧炉电极提升装置，用于缩短操作时间并降低功率成本。解决方案：一种电弧炉电极提升装置，包括：电弧电流设定单元; 电极移动距离设定单元，用于在从开始操作起经过规定时间之后设定电极迁移距离; 电极移动距离计算单元，用于计算电极的实际迁移距离L; 阻抗常数控制单元，用于控制电极的提升驱动，使得基于电弧电流设定值Is作为参考值使电极和废料之间的阻抗恒定; 电流恒定控制单元，用于控制电极的提升驱动，使得实际的电弧电流I成为设定值; 控制切换单元，用于选择性地切换阻抗常数控制单元和电流恒定控制单元; 电极提升电动机驱动单元，用于通过从阻抗常数控制单元或电流恒定控制单元接收控制信号来控制用于驱动电极提升电动机的电力; 以及电极移动距离检查单元，用于根据电极迁移距离检查单元的结果来比较实际迁移距离和设定迁移距离，其中控制切换单元被激活。

4. 发明专利

JP2013114907A Projection failure detector of breaker for furnace 有权
标题翻译：投影机故障检测器
公开(公告)号：JP2013114907A
公开(公告)日：2013-06-10
申请号：JP2011260132
申请日：2011-11-29
申请人： Toshiba Mitsubishi-Electric Industrial System Corp , 東芝三菱電機産業システム株式会社
发明人： ASAKA TAKATOSHI
IPC分类号： H01H33/00 , F27B3/28 , F27D11/08 , H01H9/54 , H01H33/59
摘要： PROBLEM TO BE SOLVED: To provide a projection failure detector of a breaker for a furnace capable of certainly preventing burning of a projection coil for projecting the breaker in the breaker for the furnace.SOLUTION: A projection failure detector includes: a breaker 8 for opening and closing a main circuit of an arc furnace for steelmaking 1; a projection coil 17 for projecting the breaker 8; a current detection circuit 18 which detects current flowing to the projection coil 17; and a determination circuit 13 which detects a projection failure of the breaker 8. The determination circuit 13 detects the projection failure of the breaker 8 when a current detected by the current detection circuit 18 is larger than a predetermined reference value when the breaker 8 at an open state is projected.
摘要翻译：要解决的问题：提供一种用于炉的断路器的投影故障检测器，其能够肯定地防止用于将断路器投射到用于炉的断路器中的投影线圈的燃烧。解决方案：投影故障检测器包括：用于打开和关闭用于炼钢1的电弧炉主回路的断路器8; 用于突出断路器8的投影线圈17; 电流检测电路18，其检测流向投影线圈17的电流; 以及检测断路器8的投影故障的判定电路13.当断路器8处于断路器8时，由电流检测电路18检测到的电流大于预定基准值时，判定电路13检测断路器8的投影故障。预计开放状态。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2014232655A 受変電設備のＣＲサプレッサ用抵抗器不良検出装置有权
标题翻译：用于接收和转换设备的CR抑制器的电阻缺陷检测装置
公开(公告)号：JP2014232655A
公开(公告)日：2014-12-11
申请号：JP2013113234
申请日：2013-05-29
申请人：東芝三菱電機産業システム株式会社 , Toshiba Mitsubishi-Electric Industrial System Corp
发明人： ASAKA TAKATOSHI
IPC分类号： H01H33/00
摘要：【課題】この発明は、CRサプレッサの抵抗器の状態を監視し、状態に応じて迅速に異常信号を発することのできる受変電設備のCRサプレッサ用抵抗器不良検出装置を提供することを目的とする。【解決手段】負荷設備の主回路を開閉するための真空遮断器と、前記真空遮断器を開閉する際に生じる開閉サージを低減するCRサプレッサとを備える受変電設備のCRサプレッサ用抵抗器不良検出装置において、前記CRサプレッサに用いられる抵抗器の温度を検出する温度検出手段と、前記抵抗器に流れる電流を検出する電流検出手段と、前記温度検出手段により検出された温度と温度設定値との比較結果と、前記電流検出手段により検出された電流と電流設定値との比較結果との組み合わせに応じた異常信号をそれぞれ出力する異常信号出力手段とを備える。【選択図】図1
摘要翻译：要解决的问题：提供一种用于接收和转换设备的CR抑制器的电阻器缺陷检测装置，其能够监视CR抑制器的电阻器的状态并且根据该状态迅速产生异常信号。解决方案：电阻器用于接收和转换设备的CR抑制器的缺陷检测装置包括用于打开/关闭负载设备的主电路的真空断路器和用于减少当打开/关闭真空断路器时产生的开/关喘振的CR抑制器。该装置还包括：温度检测装置，其检测用于CR抑制器的电阻器的温度; 电流检测装置，其检测在电阻器中流动的电流; 以及异常信号输出装置，其输出对应于将由温度检测装置检测的温度进行比较的结果与温度设定值的组合相对应的异常信号，以及将由电流检测装置检测的电流与当前设定值进行比较的结果。

6. 发明专利

JP2012220071A Electrode lifting device of ac arc furnace 有权
标题翻译：电弧炉电极提升装置
公开(公告)号：JP2012220071A
公开(公告)日：2012-11-12
申请号：JP2011085079
申请日：2011-04-07
申请人： Toshiba Mitsubishi-Electric Industrial System Corp , 東芝三菱電機産業システム株式会社
发明人： ASAKA TAKATOSHI
IPC分类号： F27B3/28 , C21C5/52 , F27B3/20 , F27D11/08 , H05B7/08
CPC分类号： Y02P10/216
摘要： PROBLEM TO BE SOLVED: To provide an electrode lifting device of an AC arc furnace which is capable of substantially reducing arc stops generated during an operation, shortening the operation time, and reducing a power cost.SOLUTION: This electrode lifting device includes an electrode 2 for generating arc between a scrap 4 and melting the scrap 4 inside a furnace body 3, an electric motor 5 for driving the electrode 2, and a controller 6 for controlling the electric motor 5. The controller 6 controls the electric motor 5 so that impedance between the electrode 2 and the scrap 4 is fixed at normal time. Also, when the length of the arc generated between the electrode 2 and the scrap 4 becomes a prescribed value or longer, the controller 6 cancels impedance fixing control and controls the electric motor 5 so as to lower the electrode 2.
摘要翻译：要解决的问题：提供一种交流电弧炉的电极提升装置，其能够大大减少在操作期间产生的电弧停止，缩短操作时间并降低电力成本。解决方案：该电极提升装置包括用于在废料4和炉体3内熔化废料4之间产生电弧的电极2，用于驱动电极2的电动机5和用于控制电动机的控制器6 控制器6控制电动机5，使得电极2和废料4之间的阻抗在正常时固定。此外，当电极2和废料4之间产生的电弧的长度变为规定值以上时，控制器6取消阻抗定影控制，并控制电动机5以使电极2下降。版权所有：（C）2013，JPO＆INPIT

7. 发明专利

JP2010014306A Electrode lifting/lowering device of arc furnace for steel making 有权
标题翻译：电炉起弧/降低电弧炉的设备
公开(公告)号：JP2010014306A
公开(公告)日：2010-01-21
申请号：JP2008173379
申请日：2008-07-02
申请人： Toshiba Mitsubishi-Electric Industrial System Corp , 東芝三菱電機産業システム株式会社
发明人： ASAKA TAKATOSHI
IPC分类号： F27D11/08 , C21C5/52 , F27B3/08 , F27B3/28 , F27D11/10 , H05B7/152
CPC分类号： Y02P10/216 , Y02P10/256 , Y02P10/259
摘要： PROBLEM TO BE SOLVED: To provide an electrode lifting/lowering device of an arc furnace for steel making capable of changing over a dead zone width to a proper value according to a status of the furnace, and improving efficiency in furnace operation and the adjustment of the dead zone width. SOLUTION: This electrode lifting/lowering device comprises an electrode 3 generating an arc between a scrap 2 and the furnace in a furnace body 1 and melting the scrap 2, an electrode lifting/lowering control board 6 for lifting and lowering the electrode 3 by controlling an electric motor 5, a comparing unit 7 outputting a corresponding speed command value to the electric motor 5 so that an actual current and an actual voltage supplied to the electrode 3 are agreed with set values, and a sensitivity dead zone characteristic generator 13 outputting the command value based on the prescribed dead zone characteristic curve or zero to the electrode lifting/lowering control board 6 on the basis of the speed command value outputted from the comparing unit 7. Furthermore, a dead zone automatic adjusting circuit 15 is disposed to adjust the dead zone width of the sensitivity dead zone characteristic generator 13, so that the dead zone width is automatically adjusted on the basis of a lapse time after the start of charging to the electrode 3. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于炼钢的电弧炉的电极提升/降低装置，其能够根据炉子的状态将死区宽度改变到适当的值，并且提高炉操作的效率，调整死区宽度。解决方案：该电极升降装置包括在炉体1中的废料2与炉之间产生电弧并熔化废料2的电极3，用于升高和降低电极的电极升降控制板6 3通过控制电动机5，比较单元7向电动机5输出相应的速度指令值，使得提供给电极3的实际电流和实际电压与设定值一致，灵敏度死区特征发生器根据从比较单元7输出的速度指令值，将基于规定的死区特性曲线或零的指令值输出到电极升降控制基板6.此外，设置死区自动调整电路15 调整灵敏度死区特征发生器13的死区宽度，使得死区宽度根据经过被自动调整电池充电开始后的时间。版权所有（C）2010，JPO＆INPIT

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