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    Method for determining at least one state variable of an electric arc furnace, and electric arc furnace
    1.
    发明授权
    Method for determining at least one state variable of an electric arc furnace, and electric arc furnace 有权
    用于确定电弧炉和电弧炉的至少一个状态变量的方法

    公开(公告)号：US09255303B2

    公开(公告)日：2016-02-09

    申请号：US12862011

    申请日：2010-08-24

    申请人： Dieter Fink ,  Detlef Gerhard ,  Thomas Matschullat ,  Detlef Rieger ,  Reinhard Sesselmann

    发明人： Dieter Fink ,  Detlef Gerhard ,  Thomas Matschullat ,  Detlef Rieger ,  Reinhard Sesselmann

    IPC分类号： C21C5/52 ,  F27B3/28 ,  F27D19/00 ,  C21C5/46

    CPC分类号： C21C5/5211 ,  C21C5/4673 ,  C21C2005/5288 ,  F27B3/28 ,  F27D19/00 ,  Y02P10/216

    摘要： In a method for determining a state variable of an electric arc furnace, especially for determining the level of the foamed slag (15) in a furnace, the energy supplied to the furnace is determined with the aid of at least one electric sensor while solid-borne noise is measured in the form of oscillations on the furnace. The state variable is determined by a transfer function which is determined by evaluating the measured oscillations and evaluating measured data of the electric sensor. The state of the foamed slag level can thus be reliably recognized and be monitored over time. The foamed slag level is decisive for the effectiveness with which energy is fed into the furnace. Furthermore, losses caused by radiation are reduced by covering the arc with the foamed slag. The improved measuring method allows the foamed slag level to be automatically controlled or regulated in a reliable manner.

    摘要翻译： 在用于确定电弧炉的状态变量的方法中，特别是用于确定炉中发泡炉渣（15）的水平时，借助于至少一个电传感器确定供应给炉的能量， 在炉子上以振荡的形式测量负载噪声。 状态变量由传递函数确定，传递函数通过评估测量的振荡和评估电传感器的测量数据来确定。 因此，可以可靠地识别发泡渣水平的状态并随时间进行监测。 泡沫炉渣水平对于将能量送入炉子的有效性是决定性的。 此外，通过用发泡炉渣覆盖电弧来减少由辐射造成的损失。 改进的测量方法允许以可靠的方式自动控制或调节泡沫炉渣水平。

    METHOD FOR DETERMINING A TIME FOR CHARGING AN ELECTRIC ARC FURNACE WITH MATERIAL TO BE MELTED, SIGNAL PROCESSING DEVICE, MACHINE-READABLE PROGRAM CODE, STORAGE MEDIUM AND ELECTRIC ARC FURNACE
    4.
    发明申请
    METHOD FOR DETERMINING A TIME FOR CHARGING AN ELECTRIC ARC FURNACE WITH MATERIAL TO BE MELTED, SIGNAL PROCESSING DEVICE, MACHINE-READABLE PROGRAM CODE, STORAGE MEDIUM AND ELECTRIC ARC FURNACE 审中-公开
    用于确定要熔化的材料对电弧炉进行充电的时间的方法，信号处理装置，机器可读程序代码，存储介质和电弧炉

    公开(公告)号：US20130051423A1

    公开(公告)日：2013-02-28

    申请号：US13640211

    申请日：2011-03-16

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

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

    IPC分类号： F27B3/28 ,  F27D21/00 ,  F27D19/00 ,  F27D11/08

    CPC分类号： C21C5/527 ,  C21C2300/06 ,  F27B3/28 ,  F27D19/00 ,  F27D21/0035 ,  Y02P10/216 ,  Y02P10/286

    摘要： An electric arc furnace, signal processing device, storage medium, machine-readable program code, and method for determining a time for charging (e.g., recharging) an electric arc furnace with material to be melted (e.g., scrap) are provided. The electric arc furnace may include electrode(s) for heating material inside the electric arc furnace by an electric arc. By detecting a signal for determining a phase state of an electric arc root on the side of the material to be melted based on a captured electrode current, by checking whether the signal exceeds a predetermined threshold value for a predetermined minimum duration, and by ensuring that the charging time is reached at the earliest when the signal exceeds the predetermined minimum duration threshold value, a state-oriented charging time for an electric arc furnace can be determined to reduce energy use, resource use, and production time for a production cycle to reach a tap weight.

    摘要翻译： 提供电弧炉，信号处理装置，存储介质，机器可读程序代码和用于确定电弧炉与待熔化材料（例如废料）的充电（例如，再充电）的时间的方法。 电弧炉可以包括用于通过电弧加热电弧炉内的材料的电极。 通过基于捕获的电极电流检测用于确定待熔化材料侧的电弧根的相位状态的信号，通过检查信号是否超过预定阈值达预定的最小持续时间，并且通过确保 当信号超过预定的最小持续时间阈值时，最早达到充电时间，可以确定电弧炉的状态定向充电时间，以减少生产周期到达的能源使用，资源使用和生产时间 水龙头重量。

    Method for Determining at Least One State Variable of an Electric Arc Furnace, and Electric Arc Furnace
    6.
    发明申请
    Method for Determining at Least One State Variable of an Electric Arc Furnace, and Electric Arc Furnace 审中-公开
    用于确定电弧炉最小一个状态变量的方法和电弧炉

    公开(公告)号：US20080285615A1

    公开(公告)日：2008-11-20

    申请号：US11996020

    申请日：2006-07-12

    申请人： Dieter Fink ,  Detlef Gerhard ,  Thomas Matschullat ,  Detlef Rieger ,  Reinhard Sesselmann

    发明人： Dieter Fink ,  Detlef Gerhard ,  Thomas Matschullat ,  Detlef Rieger ,  Reinhard Sesselmann

    IPC分类号： H05B7/148

    CPC分类号： C21C5/5211 ,  C21C5/4673 ,  C21C2005/5288 ,  F27B3/28 ,  F27D19/00 ,  F27D21/00 ,  Y02P10/216

    摘要： In a method for determining a state variable of an electric arc furnace, especially for determining the level of the foamed slag (15) in a furnace, the energy supplied to the furnace is determined with the aid of at least one electric sensor while solid-borne noise is measured in the form of oscillations on the furnace. The state variable is determined by a transfer function which is determined by evaluating the measured oscillations and evaluating measured data of the electric sensor. The state of the foamed slag level can thus be reliably recognized and be monitored over time. The foamed slag level is decisive for the effectiveness with which energy is fed into the furnace. Furthermore, losses caused by radiation are reduced by covering the arc with the foamed slag. The improved measuring method allows the foamed slag level to be automatically controlled or regulated in a reliable manner.

    摘要翻译： 在用于确定电弧炉的状态变量的方法中，特别是用于确定炉中发泡炉渣（15）的水平时，借助于至少一个电传感器确定供应给炉的能量， 在炉子上以振荡的形式测量负载噪声。 状态变量由传递函数确定，传递函数通过评估测量的振荡和评估电传感器的测量数据来确定。 因此，可以可靠地识别发泡渣水平的状态并随时间进行监测。 泡沫炉渣水平对于将能量送入炉子的有效性是决定性的。 此外，通过用发泡炉渣覆盖电弧来减少由辐射造成的损失。 改进的测量方法允许以可靠的方式自动控制或调节泡沫炉渣水平。

    METHOD FOR DETERMINING THE SIZE AND SHAPE MEASURE OF A SOLID MATERIAL IN AN ARC FURNACE, AN ARC FURNACE, A SIGNAL PROCESSING DEVICE AND PROGRAM CODE AND A MEMORY MEDIUM
    8.
    发明申请
    METHOD FOR DETERMINING THE SIZE AND SHAPE MEASURE OF A SOLID MATERIAL IN AN ARC FURNACE, AN ARC FURNACE, A SIGNAL PROCESSING DEVICE AND PROGRAM CODE AND A MEMORY MEDIUM 有权
    用于确定电弧炉，电弧炉，信号处理装置和程序代码和存储介质中的固体材料的尺寸和形状测量的方法

    公开(公告)号：US20100327888A1

    公开(公告)日：2010-12-30

    申请号：US12865185

    申请日：2009-01-12

    申请人： Arno Döbbeler ,  Klaus Krüger ,  Thomas Matschullat ,  Detlef Rieger

    发明人： Arno Döbbeler ,  Klaus Krüger ,  Thomas Matschullat ,  Detlef Rieger

    IPC分类号： G01R27/08 ,  G01R23/16

    CPC分类号： C21C5/5211 ,  C21C2005/5288 ,  F27D19/00 ,  F27D21/00 ,  Y02P10/216

    摘要： In a method for determining the size and shape value (M) for a solid material (S), in particular scrap metal, in an arc furnace (1), an electrode flow fed to an electrode (3a, 3b, 3c) for forming an arc furnace (L) between the electrode (3a, 3b, 3c) and the solid (S) is measured (30) and from the measured electrode flow (I (t)), an effective measurement value of the electrode flow is determined (31) and from the measured electrode flow (I (t)) (32), a flow part associated with a frequency range of the measured electrode flow is determined (32), and a quotient of the flow part and an effective measurement value is formed as a measurement of the shape and size value of the flow (M). Thus, a method is provided that enables a property of a fusible element introduced into one of the arc furnaces to be determined.

    摘要翻译： 在用于确定电弧炉（1）中的固体材料（S），特别是废金属的尺寸和形状值（M）的方法中，提供给用于形成的电极（3a，3b，3c）的电极流 测量电极（3a，3b，3c）和固体（S）之间的电弧炉（L）（30），并从测量的电极流（I（t））中确定电极流的有效测量值 （31），从测量的电极流（I（t））（32）中，确定与测量的电极流的频率范围相关联的流动部分（32），并且流量部分的商和有效测量值 形成为流（M）的形状和尺寸值的测量。 因此，提供一种能够确定引入到一个电弧炉中的可熔元件的特性的方法。