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    Control of the converter process by means of exhaust gas signals
    12.
    发明授权
    Control of the converter process by means of exhaust gas signals 有权
    通过废气信号控制转炉过程

    公开(公告)号：US08494679B2

    公开(公告)日：2013-07-23

    申请号：US13519088

    申请日：2010-12-14

    申请人： Johann Reichel

    发明人： Johann Reichel

    IPC分类号： G05B21/00

    CPC分类号： C21C5/30 ,  C21C5/4673 ,  C21C2300/06 ,  F27D19/00 ,  F27D2019/0012 ,  Y02P10/286

    摘要： Modern steel production processes require precise knowledge of the current composition and temperature of the liquid metal being processed. In particular during steel production in a converter, high match rates for final carbon content and bath temperature are required. Quantitatively precise blowing of oxygen corresponding to the final target carbon content, and the metal temperature, are decisive factors affecting the economic efficiency of the process and the quality of the steel produced. In order to allow relatively precise process monitoring, various processes and procedures are known, the application thereof being based on measuring exhaust gas composition and on mass flow balances. All models work at an exactness that depends on the precision of the input data, particularly with respect to the weight data of the raw materials and the chemical properties of the metal used. In order to allow control of the converter process for producing steel independently of the predefined process model, in particular when blowing oxygen, the invention proposes that detected values for the critical decoking point (t′crit) and for the end of O2-blowing (t′EoB) are obtained by means of a submodel operating as a process monitor based on the exhaust gas analysis and independent of the process model, by sensibly combining the constituent signals obtained, by means of which values the oxygen content predicted by the process model is corrected at the start of the process and matched to the actual conditions near the end of the decoking period.

    摘要翻译： 现代钢铁生产过程需要对正在加工的液态金属的当前组成和温度的精确了解。 特别是在转炉炼钢期间，需要最终碳含量和浴温的匹配率高。 与最终目标碳含量相对应的定量精确吹制氧气和金属温度是影响工艺经济效率和生产钢质量的决定性因素。 为了允许相对精确的过程监控，已知各种过程和程序，其应用基于测量废气组成和质量流量平衡。 所有型号的工作精确度取决于输入数据的精度，特别是关于原材料的重量数据和所用金属的化学性质。 为了允许独立于预定的过程模型，特别是在吹氧时控制用于生产钢的转炉过程，本发明提出了临界脱焦点（t'crit）和O2-吹送结束的检测值 t'EoB）通过基于排气分析和独立于过程模型的作为过程监控器的子模型获得，通过合理地组合所获得的组成信号，借助于该值，通过过程模型预测的氧含量 在处理开始时得到纠正，并与除焦周期结束附近的实际条件相匹配。

    CONTROL OF THE CONVERTER PROCESS BY MEANS OF EXHAUST GAS SIGNALS
    13.
    发明申请
    CONTROL OF THE CONVERTER PROCESS BY MEANS OF EXHAUST GAS SIGNALS 有权
    通过排气信号控制转炉过程

    公开(公告)号：US20130018508A1

    公开(公告)日：2013-01-17

    申请号：US13519088

    申请日：2010-12-14

    申请人： Johann Reichel

    发明人： Johann Reichel

    IPC分类号： G05B21/00

    CPC分类号： C21C5/30 ,  C21C5/4673 ,  C21C2300/06 ,  F27D19/00 ,  F27D2019/0012 ,  Y02P10/286

    摘要： Modern steel production processes require precise knowledge of the current composition and temperature of the liquid metal being processed. In particular during steel production in a converter, high match rates for final carbon content and bath temperature are required. Quantitatively precise blowing of oxygen corresponding to the final target carbon content, and the metal temperature, are decisive factors affecting the economic efficiency of the process and the quality of the steel produced. In order to allow relatively precise process monitoring, various processes and procedures are known, the application thereof being based on measuring exhaust gas composition and on mass flow balances. All models work at an exactness that depends on the precision of the input data, particularly with respect to the weight data of the raw materials and the chemical properties of the metal used. In order to allow control of the converter process for producing steel independently of the predefined process model, in particular when blowing oxygen, the invention proposes that detected values for the critical decoking point (t′crit) and for the end of O2-blowing (t′EoB) are obtained by means of a submodel operating as a process monitor based on the exhaust gas analysis and independent of the process model, by sensibly combining the constituent signals obtained, by means of which values the oxygen content predicted by the process model is corrected at the start of the process and matched to the actual conditions near the end of the decoking period.

    摘要翻译： 现代钢铁生产过程需要对正在加工的液态金属的当前组成和温度的精确了解。 特别是在转炉炼钢期间，需要最终碳含量和浴温的匹配率高。 与最终目标碳含量相对应的定量精确吹制氧气和金属温度是影响工艺经济效率和生产钢质量的决定性因素。 为了允许相对精确的过程监控，已知各种过程和程序，其应用基于测量废气组成和质量流量平衡。 所有型号的工作精确度取决于输入数据的精度，特别是关于原材料的重量数据和所用金属的化学性质。 为了允许独立于预定的过程模型，特别是在吹氧时控制用于生产钢的转炉过程，本发明提出了临界脱焦点（t'crit）和O2-吹送结束的检测值 t'EoB）通过基于排气分析和独立于过程模型的作为过程监控器的子模型获得，通过合理地组合所获得的组成信号，借助于该值，通过过程模型预测的氧含量 在处理开始时得到纠正，并与除焦周期结束附近的实际条件相匹配。

    METHOD FOR CONTROLLING A MELT PROCESS IN AN ARC FURNACE AND SIGNAL PROCESSING COMPONENT, PROGRAM CODE AND DATA MEDIUM FOR PERFORMING SAID METHOD
    14.
    发明申请
    METHOD FOR CONTROLLING A MELT PROCESS IN AN ARC FURNACE AND SIGNAL PROCESSING COMPONENT, PROGRAM CODE AND DATA MEDIUM FOR PERFORMING SAID METHOD 有权
    用于控制电弧炉熔融过程的方法和信号处理组件，程序代码和数据介质，用于执行方法

    公开(公告)号：US20120183010A1

    公开(公告)日：2012-07-19

    申请号：US13498760

    申请日：2010-09-14

    申请人： Björn Dittmer ,  Arno Döbbeler ,  Klaus Krüger ,  Sascha Leadbetter ,  Thomas Matschullat ,  Detlef Rieger

    发明人： Björn Dittmer ,  Arno Döbbeler ,  Klaus Krüger ,  Sascha Leadbetter ,  Thomas Matschullat ,  Detlef Rieger

    IPC分类号： H05B7/148

    CPC分类号： H05B7/148 ,  C21C5/5211 ,  C21C2005/5288 ,  C21C2300/06 ,  F27B3/28 ,  F27D19/00 ,  F27D21/00 ,  Y02P10/216 ,  Y02P10/256 ,  Y02P10/259 ,  Y02P10/286

    摘要： A method for controlling a melt process in an arc furnace and signal processing component, program code, and data medium for performing said method are provided. According to the method, sound signals or vibrations from the interior of the furnace container are captured by solid-borne sound sensors, from which characteristic values can be derived for the distribution of melting material, melt, and slag in the furnace fill. A characteristic value SM for thermal radiation impinging on the furnace wall of the container, a characteristic value M for the lumpiness of the melting material in the volume of furnace fill, and a characteristic value MM for the change to the portion of solid melting material contacting the furnace wall are generated in priority sequence. The energy distribution at the electrodes is changed by a control system analyzing the characteristic values in priority sequence, such that thermal load peaks are dampened or even completely prevented. To this end, the strand impedances stored as target values are modified. If the control is not sufficient, the thermal power of the arc is reduced as a subordinate means. A rapidly and reliably effective operating regime for the processes in the arc furnace can thereby be implemented.

    摘要翻译： 提供了一种用于控制电弧炉中的熔融过程的方法和用于执行所述方法的信号处理组件，程序代码和数据介质。 根据该方法，由固体声音传感器捕获来自炉容器内部的声音信号或振动，从而可以从熔炉材料，熔体和炉渣在炉子填充物中的分布获得特征值。 暴露在容器炉壁上的热辐射的特征值SM，熔化材料在炉料体积中的块状物的特征值M，以及与熔融材料接触部分变化的特征值MM 炉壁以优先顺序生成。 通过分析优先级序列中的特征值的控制系统改变电极处的能量分布，使得热负荷峰值被抑制或甚至完全防止。 为此，修改存储为目标值的线束阻抗。 如果控制不充分，则电弧的热功率作为从属方式减小。 因此可以实现电弧炉中的工艺的快速可靠的有效操作方案。

    CONVERTER SLAGGING MONITORING METHOD AND SYSTEM
    17.
    发明申请
    CONVERTER SLAGGING MONITORING METHOD AND SYSTEM 审中-公开
    转换器SLAGGING监控方法与系统

    公开(公告)号：US20170067128A1

    公开(公告)日：2017-03-09

    申请号：US15120486

    申请日：2014-10-20

    申请人： HUNAN RAMON SCIENCE & TECHNOLOGY CO., LTD.

    发明人： Lu TIAN ,  Taotao HE

    IPC分类号： C21C5/46 ,  G01B21/08

    CPC分类号： C21C5/4673 ,  C21C2005/5288 ,  C21C2300/02 ,  C21C2300/06 ,  F27D19/00 ,  F27D21/00 ,  F27D21/0028 ,  G01B21/08 ,  G01B21/085 ,  Y02P10/216 ,  Y02P10/286

    摘要： A converter slagging monitoring method and device. The method comprises: acquiring converter smelting data containing converter noise data and oxygen lance vibration data in real time; based on a pre-established slagging monitoring model, calculating the thickness of slags in a converter molten bath by virtue of the acquired converter smelting data; comparing the calculated thickness of slags with a splashing threshold value and a drying threshold value which are contained in the slagging monitoring model, judging whether a comparison result characterizes the occurrence of splashing or drying, and when the comparison result characterizes the occurrence of splashing or drying, acquiring corresponding splashing information or drying information; and finally, according to the splashing information or drying information, making a corresponding splashing control scheme or drying control scheme to guide a subsequent slagging operation so as to achieve the smooth control of the lance position.

    摘要翻译： A转炉排渣监测方法及装置。 该方法包括：实时获取包含转换器噪声数据和氧枪振动数据的转炉熔炼数据; 基于预先确定的造渣监测模型，通过获得的转炉冶炼数据计算转炉熔池中炉渣的厚度; 将计算出的炉渣厚度与排渣监测模型中包含的飞溅阈值和干燥阈值进行比较，判断比较结果是否表征飞溅或干燥的发生，以及比较结果是否表示飞溅或干燥的发生 获取相应的飞溅信息或干燥信息; 最后，根据飞溅信息或干燥信息，制作相应的飞溅控制方案或干燥控制方案以引导随后的排渣操作，以实现喷枪位置的平稳控制。

    Control System For A Melting Process
    19.
    发明申请
    Control System For A Melting Process 有权
    熔化过程控制系统

    公开(公告)号：US20150003488A1

    公开(公告)日：2015-01-01

    申请号：US14490366

    申请日：2014-09-18

    申请人： Michael Lundh ,  Xiaojing Zhang

    发明人： Michael Lundh ,  Xiaojing Zhang

    IPC分类号： H05B7/144 ,  H05B7/18

    CPC分类号： H05B7/144 ,  C21C5/5211 ,  C21C5/5217 ,  C21C2005/5288 ,  C21C2300/06 ,  F27B3/28 ,  F27D19/00 ,  F27D21/00 ,  F27D27/00 ,  H05B7/148 ,  H05B7/18 ,  Y02P10/216 ,  Y02P10/256 ,  Y02P10/259 ,  Y02P10/286

    摘要： Disclosed is a control system for a melting process in an electric arc furnace for melting a metallic material. By means of the present disclosure it is possible to minimize desired process properties such as the melting time or the total power consumption of the melting process. The system includes a processing unit adapted for receiving or collecting measured data of at least one process variable, determining the current state of the process, performing an optimization of the melting process, determining a process input based on the result of the optimization, and controlling the melting process by means of the process input. A method is also presented herein.

    摘要翻译： 公开了一种用于熔化金属材料的电弧炉中熔化过程的控制系统。 通过本公开，可以最小化期望的工艺特性，例如熔化过程的熔化时间或总功率消耗。 该系统包括处理单元，适于接收或收集至少一个过程变量的测量数据，确定过程的当前状态，执行熔化过程的优化，基于优化结果确定过程输入，以及控制 通过过程输入的熔化过程。 本文还给出了一种方法。

    Method and apparatus to monitor/detect nodularization in ductile iron
    20.
    发明授权
    Method and apparatus to monitor/detect nodularization in ductile iron 失效
    监测/检测球墨铸铁球状化的方法和装置

    公开(公告)号：US07357826B1

    公开(公告)日：2008-04-15

    申请号：US10995544

    申请日：2004-11-24

    申请人： David A. Niederhelman ,  Mark A. Bassett

    发明人： David A. Niederhelman ,  Mark A. Bassett

    IPC分类号： C21C1/04

    CPC分类号： C21C1/105 ,  C21C7/0075 ,  C21C2300/06 ,  G01N33/206 ,  Y02P10/286

    摘要： The present invention is direct to a method/apparatus for verifying a nodularization process in a molten iron disposed within a ladle. The method includes the steps of: transferring the ladle with the molten iron to a nodularization area; adding an amount of magnesium to the molten iron in the ladle for producing the nodularization process in the molten iron; measuring vibration of the ladle containing the molten iron caused by the nodularization process in the molten iron; comparing the measured vibration with a predetermined level of vibration; and determining that the nodularization process occurs if the measured vibration is higher than the predetermined level of vibration.

    摘要翻译： 本发明直接涉及用于验证设置在钢包内的铁水中的结节化过程的方法/装置。 该方法包括以下步骤：将钢包与铁水一起转移到结节区域; 在钢包中的铁水中加入一定量的镁，以产生铁水中的结瘤过程; 测量由铁水中的结瘤过程引起的含有铁水的钢包的振动; 将测量的振动与预定水平的振动进行比较; 并且如果所测量的振动高于预定振动水平，则确定结节化过程。