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61. 发明申请

US20190191502A1 Apparatus and Method to Electrically Power an Electric Arc Furnace 审中-公开
公开(公告)号：US20190191502A1
公开(公告)日：2019-06-20
申请号：US16284925
申请日：2019-02-25
申请人： DANIELI AUTOMATION S.P.A.
发明人： Antonello Mordeglia , Enzo Gigante
IPC分类号： H05B7/152 , H05B7/20 , F27D11/08 , F27B3/08 , F27B3/28 , H05B7/144
CPC分类号： H05B7/152 , F27B3/085 , F27B3/28 , F27D11/08 , F27D2099/0021 , H05B7/144 , H05B7/148 , H05B7/20 , Y02P10/256 , Y02P10/259
摘要： An electric power apparatus for an electric arc furnace comprises at least one electrode and is connectable to a power network to supply to the electrode the electric energy to generate an electric arc to melt a metal mass. The apparatus comprises an electric regulation unit interposed and connected to the power network and to the electrode and configured to regulate at least one electric quantity for powering the electrode. The apparatus comprises at least one detection device to detect the electric quantity, interposed between the electrode and the electric regulation unit, a positioning device to move the at least one electrode nearer to/away from the metal mass to be melted and a control and command unit.

62. 发明申请

US20170034878A1 Apparatus and Method to Electrically Power an Electric Arc Furnace 审中-公开
标题翻译：对电弧炉进行电力供应的设备和方法
公开(公告)号：US20170034878A1
公开(公告)日：2017-02-02
申请号：US14857697
申请日：2015-09-17
申请人： DANIELI AUTOMATION SPA
发明人： Antonello Mordeglia , Enzo Gigante
IPC分类号： H05B7/152 , H05B7/20
CPC分类号： H05B7/152 , F27B3/085 , F27B3/28 , F27D11/08 , F27D2099/0021 , H05B7/144 , H05B7/20 , Y02P10/256 , Y02P10/259
摘要： An electric power apparatus for an electric arc furnace comprises at least one electrode and is connectable to a power network to supply to the electrode the electric energy to generate an electric arc to melt a metal mass. The apparatus comprises an electric regulation unit interposed and connected to the power network and to the electrode and configured to regulate at least one electric quantity for powering the electrode. The apparatus comprises at least one detection device to detect the electric quantity, interposed between the electrode and the electric regulation unit, a positioning device to move the at least one electrode nearer to/away from the metal mass to be melted and a control and command unit.
摘要翻译：一种用于电弧炉的电力设备包括至少一个电极并且可连接到电力网络以向电极提供电能以产生电弧以熔化金属块。该装置包括插入并连接到电力网络和电极并被配置为调节用于为电极供电的至少一个电量的电调节单元。该装置包括至少一个检测装置，用于检测介于电极和电调节单元之间的电量;定位装置，用于使至少一个电极更靠近/远离待熔化的金属块移动;控制和指令单元。

63. 发明申请

US20130279535A1 Method and Device for Closed-Loop Control of the Electrode Gap in a Vacuum Arc Furnace 有权
标题翻译：真空电弧炉电极间隙闭环控制方法与装置
公开(公告)号：US20130279535A1
公开(公告)日：2013-10-24
申请号：US13880545
申请日：2011-10-06
申请人： Ralf Oehler , Harald Scholz , Frank-Werner Hoffmann
发明人： Ralf Oehler , Harald Scholz , Frank-Werner Hoffmann
IPC分类号： H05B7/152
CPC分类号： H05B7/152 , H05B7/148 , Y02P10/256 , Y02P10/259
摘要： The invention relates to a method as well as a device for closed-loop control of the electrode gap in a vacuum arc furnace (10), wherein an electrode gap of a melting electrode from the surface of a melt material is subjected to closed-loop control as a function of a droplet short-circuit rate. For this purpose, a histogram (70) of detected droplet short-circuits (80) is created on the basis of at least one droplet short-circuit criterion (76), the histogram (70) is subdivided into sub-areas (72), a characteristic sub-area (74) of the histogram (70) is selected for closed-loop control purposes, and an electrode gap is subjected to closed-loop control on the basis of the droplet short-circuits (80) which can be associated with the selected sub-area (74).
摘要翻译：本发明涉及一种方法以及用于在真空电弧炉（10）中对电极间隙进行闭环控制的装置，其中熔融电极与熔体材料表面的电极间隙经受闭环控制作为液滴短路速率的函数。为此，基于至少一个液滴短路标准（76）创建检测到的液滴短路（80）的直方图（70），直方图（70）被细分为子区域（72）选择直方图（70）的特征子区域（74）用于闭环控制目的，并且基于液滴短路（80）对电极间隙进行闭环控制，其可以是与所选择的子区域（74）相关联。

64. 发明授权

US5708677A Arc voltage distribution skewness as an indicator of electrode gap during vacuum arc remelting 失效
标题翻译：电弧电压分布偏差作为真空电弧重熔期间电极间隙的指标
公开(公告)号：US5708677A
公开(公告)日：1998-01-13
申请号：US426545
申请日：1995-04-21
申请人： Rodney L. Williamson , Frank J. Zanner , Stephen M. Grose
发明人： Rodney L. Williamson , Frank J. Zanner , Stephen M. Grose
IPC分类号： F27B3/28 , F27D11/08 , H05B7/152 , H05B7/148
CPC分类号： H05B7/152 , F27B3/28 , F27D11/08 , Y02P10/256 , Y02P10/259
摘要： The electrode gap of a VAR is monitored by determining the skewness of a distribution of gap voltage measurements. A decrease in skewness indicates an increase in gap and may be used to control the gap.
摘要翻译：通过确定间隙电压测量分布的偏度来监测VAR的电极间隙。偏斜度的减小表示间隙增大，可用于控制间隙。

65. 发明授权

US3937869A Force sensing control apparatus and method for electric arc furnaces 失效
标题翻译：用于电弧炉的感应控制装置和方法
公开(公告)号：US3937869A
公开(公告)日：1976-02-10
申请号：US513124
申请日：1974-10-08
申请人： Kegham M. Markarian , Thomas M. Maloney
发明人： Kegham M. Markarian , Thomas M. Maloney
IPC分类号： F27D11/00 , H05B7/152 , H05B7/00
CPC分类号： H05B7/152 , F27D11/00 , Y02P10/256 , Y02P10/259
摘要： A force sensing control apparatus and method is disclosed for detecting forces which resist movement of a motor driven electrode system in an electric arc furnace. Force sensing circuitry monitors forces applied to an electrode system as it is positioned with respect to the furnace and force responsive controls inhibit electrode movement, hence preventing damage to the electrode or to its support structure, in response to predetermined changes in sensed reaction forces during positioning of the electrode. Compensating circuitry continuously compensates for changes in forces arising from electrode weight variations and position changes of the electrode support structure so that the sensitivity of the control apparatus to applied forces which can damage electrode system remains consistently high.

66. 发明授权

US3732350A Power control 失效
标题翻译：功率控制
公开(公告)号：US3732350A
公开(公告)日：1973-05-08
申请号：US3732350D
申请日：1971-11-18
申请人： BRITISH IRON STEEL RESEARCH
发明人： HOYLE G , LONGBOTTON D
IPC分类号： C22B9/18 , H05B7/152 , H05B3/60
CPC分类号： H05B7/152 , C22B9/18 , Y02P10/256 , Y02P10/259
摘要： Electroslag refining plant comprising an electrode, a mould for containing a bath of molten electrically-conductive slag into which the electrode depends and below which an ingot of refined material is formed, means for maintaining the supply of electric current to the electrode at a pre-determined value, means for detecting changes in the power supplied by the electrode to the slag bath, means for causing movement of the electrode relative to the formed ingot to maintain the power supplied at a required value, means for detecting movement of the electrode outside of pre-determined limits of maximum and minimum distances from the formed ingot and, upon such movement being detected, for returning the electrode to a position within said maximum and minimum distances and for re-setting the value of the current supply so that the required value of power supply can be met by movement of the electrode within the pre-determined limits.
摘要翻译：电渣精制设备，包括电极，用于容纳熔融导电渣的浴的模具，所述电极熔化到所述电极中，所述电极依次形成在所述熔融导电熔渣中，并且下面形成有精炼材料锭;用于在预处理时保持向所述电极供应电流的装置，确定值，用于检测由电极向渣槽供应的功率的变化的装置，用于使电极相对于所形成的锭移动以将供应的功率维持在所需值的装置，用于检测电极的外部移动的装置预先确定的来自成形锭的最大和最小距离的限制，并且在检测到这种移动时，将电极返回到所述最大和最小距离内的位置，并重新设定电流供应的值，使得所需值的电源可以通过在预定极限内的电极的移动来满足。

67. 发明授权

US3520978A Control circuit for automatic positioning of pairs of electrodes in smelting furnaces 失效
标题翻译：用于自动定位熔融炉中电极对的控制电路
公开(公告)号：US3520978A
公开(公告)日：1970-07-21
申请号：US3520978D
申请日：1969-02-05
申请人： ELEKTROKEMISK AS
发明人： SVENDSEN EIVIND CHRISTIAN KROG
IPC分类号： H05B7/152 , H05B7/148 , H05B7/12
CPC分类号： H05B7/148 , Y02P10/256 , Y02P10/259

68. 发明授权

US3486660A Method and apparatus for regulating the flow of molten metal 失效
标题翻译：用于调节金属流动的方法和装置
公开(公告)号：US3486660A
公开(公告)日：1969-12-30
申请号：US3486660D
申请日：1966-10-05
申请人： SIDERURGIE FSE INST RECH
发明人： HEINTZ ROBERT
IPC分类号： B22D11/18 , G05D7/06 , G05D9/12 , H05B7/152 , G01F11/00
CPC分类号： G05D7/0617 , B22D11/181 , B22D11/186 , G05D9/12 , H05B7/152 , Y02P10/256 , Y02P10/259

69. 发明授权

US3376374A Polyphase arc furnace with control system to raise one electrode prior to all electrodes striking an arc 失效
标题翻译：具有控制系统的多相电弧炉在所有电极撞击电弧之前升高一个电极
公开(公告)号：US3376374A
公开(公告)日：1968-04-02
申请号：US40781364
申请日：1964-10-30
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： BOBO POWELL O
IPC分类号： H05B7/152
CPC分类号： H05B7/152 , Y02P10/256 , Y02P10/259

70. 发明授权

US3187078A Electrode regulating system for arc melting furnaces 失效
标题翻译：电弧熔炼炉电极调节系统
公开(公告)号：US3187078A
公开(公告)日：1965-06-01
申请号：US40564664
申请日：1964-10-08
申请人： ALLEGHENY LUDLUM STEEL
发明人： MURTLAND JR JAMES B , REBHUN CHARLES F , JACKSON HAROLD S
IPC分类号： C22B4/00 , C22B9/20 , H05B7/152
CPC分类号： H05B7/152 , C22B4/00 , C22B9/20 , Y02P10/256 , Y02P10/259

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