公开(公告)号：WO2016026530A1

公开(公告)日：2016-02-25

申请号：PCT/EP2014/067806

申请日：2014-08-21

Applicant: ABB TECHNOLOGY LTD

Inventor： ZHANG, Xiaojing ,  ERIKSSON, Jan- Erik ,  LUNDH, Michael ,  SVAHN, Conny

IPC: F27D27/00 ,  H05B6/34 ,  B01F13/08 ,  C03B5/185 ,  C21C5/52 ,  F27D21/00 ,  F27D19/00

CPC classification number: F27D21/0014 ,  B01F13/0809 ,  C21C5/5217 ,  C21C5/5247 ,  C21C2005/5288 ,  C21C2300/06 ,  F27D3/1509 ,  F27D27/00 ,  F27D2019/0003 ,  G01J5/0044 ,  H05B7/18 ,  Y02P10/212 ,  Y02P10/286

Abstract: The present invention relates to a system and a method for determining/predicting a tapping time for a metal melt in an electric arc furnace (EAF), wherein at least one electrode is provided for melting the metal melt until it reach a target tapping temperature, wherein the EAF further comprises a slag and smoke layer on the surface of the metal melt, wherein an electromagnetic stirrer is provided for stirring the metal melt. The method comprising supplying a power to the electrode in order to melt a scrap to a metal melt (S10), electromagnetic stirring the metal melt in the EAF (S20), blowing away the slag and smoke from the surface of the metal melt (S30), non- contactingly measuring a temperature of the metal melt (S40), receiving the measured temperature (S50), calculating a temperature profile based on the received temperature (S60), estimating/predicting a tapping temperature at a time point based on the calculated temperature profile (S70), and determining a tapping time based on the estimated temperature, the target tapping temperature and the power supplied to the electrode (S80).

Abstract translation: 本发明涉及一种用于确定/预测电弧炉（EAF）中的金属熔体的攻丝时间的系统和方法，其中提供至少一个用于熔化金属熔体的电极，直到达到目标点火温度， 其中所述EAF还包括在所述金属熔体表面上的炉渣和烟层，其中提供用于搅拌所述金属熔体的电磁搅拌器。 该方法包括向电极提供电力以将废料熔融到金属熔体（S10），电磁搅拌EAF中的金属熔体（S20），从金属熔体的表面吹走炉渣和烟雾（S30 ），不接触地测量金属熔体的温度（S40），接收测量温度（S50），基于接收到的温度计算温度分布（S60），基于时间点估计/预测出口温度 计算温度曲线（S70），并且基于估计的温度，目标分接温度和提供给电极的功率确定敲击时间（S80）。

公开(公告)号：WO2015198256A2

公开(公告)日：2015-12-30

申请号：PCT/IB2015/054769

申请日：2015-06-25

Applicant: ABB TECHNOLOGY LTD.

Inventor： BHAT, Shrikant ,  LUNDH, Michael

IPC: G05B9/03

CPC classification number: G05B19/4184 ,  G05B9/03 ,  G05B17/02 ,  G05B19/0425 ,  G05B19/0428 ,  G05B2219/24182 ,  Y02P90/14 ,  Y02P90/18

Abstract: The present invention discloses a method for controlling a process with a plurality of field devices in a process plant using a plurality of regulatory controllers connected to a remote supervisory controller over a communication link and to a local supervisory controller over a process bus. The method comprises monitoring transmission of control data between the remote supervisory controller and the plurality of controllers over the communication link, determining functional correlations between measured process variables and control process variables, based on the control data and a predetermined correlation function, configuring local process model based on the determined functional correlations, and providing intermediate set points in relation to the control process variables using the configured local process model, upon an intermediate failure of the communication link, where the communication link recovers from the intermediate failure within a predetermined time period.

Abstract translation: 本发明公开了一种使用多个通过通信链路连接到远程监控控制器的监管控制器和通过过程总线连接到本地监控控制器的处理设备中的多个现场设备的过程的控制方法。 该方法包括通过通信链路监视远程监控控制器与多个控制器之间的控制数据传输，基于控制数据和预定的相关函数确定测量过程变量与控制过程变量之间的功能相关性，配置局部过程模型 基于确定的功能相关性，并且在通信链路的中间故障时，在通信链路在预定时间段内从中间故障恢复的情况下，使用配置的本地进程模型提供与控制过程变量相关的中间设置点。