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41.发明公开Method and device for the active compensation of periodic disturbances during hot or cold rolling 无效在热轧或冷轧周期性干扰的有效补偿的方法和装置
公开(公告)号：EP0992295A3
公开(公告)日：2002-12-18
申请号：EP99119817.7
申请日：1999-10-07
发明人： Kugi, Andreas , Frank, Helge , Aistleitner, Karl
IPC分类号： B21B37/66
CPC分类号： B21B37/66
摘要： In a method and a corresponding device for the active compensation of periodic disturbances of known frequency during hot or cold rolling, such as roll eccentricities, by means of a control system, with the aid of a linear dynamic controller (2) which comprises a model (P u ) that describes one part of the dynamic behaviour of the controlled system (1), an output variable (y) is determined from an input variable (u) on the basis of a reference variable (r), and a compensation signal (u LMS ) is generated on the basis of said output variable and a measured output variable (y) of the controlled system (1) and is impressed on the input variable (u) fed to the controlled system (1). As a result, the tracking control is decoupled from the disturbance control, and the controller according to the invention can therefore be inserted into existing control loops for the thickness of the rolling material and/or for the position of the rolls and/or for the rolling force and/or for the roll bending. The compensation signal is generated without prior identification of the eccentricity, which thus permits a more rapid correction of the disturbances.
摘要翻译： 在一种方法和用于热轧或冷轧中已知频率的周期扰动，：如滚动偏心受，由控制系统的手段，具有线性动态控制器的帮助的有源补偿的对应的装置（2），它包括一个模型 （PU）做介绍的控制系统的动态行为从传递InputVariable（u）的一个参考变量（r）的基础上，（1），（在输出变量（y）被确定性开采一个部分，和一补偿信号 （U）供给到控制系统乌尔姆）是所述输出变量的控制系统（1）的基础和测得的输出变量（y）上产生和是对输入变量的印象（1）。 其结果是，所述跟踪控制是从干扰控制解耦，以及所述控制器雅丁发明因此可以插入到现有控制回路用于滚动材料的厚度和/或用于辊和/或用于位置 轧制力和/或用于轧辊弯曲。 没有偏心率，这因此允许干扰的更快速校正之前识别产生的补偿信号。
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42.发明授权
公开(公告)号：EP1113888B1
公开(公告)日：2002-08-07
申请号：EP99927572.0
申请日：1999-06-21
发明人： FLICK, Andreas , JOB, Clifford , LETTMAYR, Gernot , SILBERMANN, Olaf , WATZINGER, Josef , LANSCHÜTZER, Josef , WIMMER, Franz , MAIERL, Josef , DJUMLIJA, Gerlinde , THÖNE, Heinrich
CPC分类号： B21B1/463 , B21B1/26 , B21B1/34 , B21B13/02 , B21B2013/025
摘要： The invention relates to a method and a device for producing hot-rolled steel strip. To be able to use said device in a combination plant and with a minimum number of rolling passes the method provides for the following combination of steps: continuous casting of steel melt in a cooled, oscillating continuous-casting mould using the free jet casting method, the pouring stream being protected against atmospheric influences; release of an at least partly solidified casting strand with a strand thickness of between 15 and 50 mm from the continuous-casting mould; possible heating of the casting strand to rolling temperature in a heating phase immediately prior to rolling; rolling of the casting strand to a hot-rolled steel strip having a thickness of between 0.6 and 12.0 mm in several rolling passes; and cooling of the steel strip in a cooling line positioned downstream, followed by coiling of the strip in a reeling plant.
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公开(公告)号：EP0973615B1
公开(公告)日：2002-07-31
申请号：EP98912138.9
申请日：1998-04-03
摘要： The invention relates to a method for cleaning waste process gases containing water vapour and dust, in a wet-type electrostatic filter. According to this method, the gases which pass through said wet-type electrostatic filter are charged in a space between one or several emission electrodes and one or several collecting electrodes and the particles of dust are precipitated on the collecting electrode(s). The invention is characterized in that the speed at which the waste gases pass through the wet-type electrostatic filter is set at a value of 4 m/s to 9 m/s.
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44.发明授权
公开(公告)号：EP0868656B1
公开(公告)日：2002-02-13
申请号：EP96942176.7
申请日：1996-12-19
发明人： FRITZ, Ernst , RAMASEDER, Norbert
CPC分类号： G01J5/041 , G01N33/206
摘要： The method of measuring electromagnetic waves emanating from the interior of a melt (3), in particular metal melt, involves blowing gas into the melt (3) to form a gas-filled cavity (26) and observation and evaluation of the electromagnetic waves emitted by the melt (3) through the inblown gas by directing the electromagnetic waves via an optical system (20) to a detector (22) for determining temperature and/or chemical composition. To eliminate spurious measurements, the emitted electromagnetic waves are separated from electromagnetic waves (36, 37, 39, 40) aligned obliquely relative to the optical axis (38) of the optical system (20) and present outside a boundary radius (41) drawn from that optical axis (38). This is done by: deviating these electromagnetic waves from the optical axis (38) in a wave scattering device (42) of the optical system (20) so that only electromagnetic waves aligned more or less parallel to the optical axis (38) of the optical system (20) reach a detector (22) located downstream of the optical system (20); and/or by displacing the optical system (20) and aligning the optical axis (38) of said system relative to the cavity (26) until the intensity of the emitted electromagnetic waves when evaluated reaches a maximum value.
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45.发明授权VERFAHREN ZUM HERSTELLEN VON EISENSCHWAMM DURCH DIREKTREDUKTION VON EISENOXIDHÄLTIGEM MATERIAL 失效法生产铁SPONGE BY直接还原含氧化铁的材料的
公开(公告)号：EP0871782B1
公开(公告)日：2001-12-19
申请号：EP97910150.8
申请日：1997-11-05
CPC分类号： C21B13/0073 , C21B13/0033 , C21B13/146 , C21B2100/26 , C21B2100/282 , C21B2100/42 , Y02P10/122 , Y02P10/136 , Y02P10/143
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公开(公告)号：EP0879101B1
公开(公告)日：2001-11-14
申请号：EP97901471.9
申请日：1997-01-29
发明人： DJUMLIJA, Gerlinde , KREMMAIER, Karl , OBERHUMER, Johann , SCHWEIGHOFER, Andreas , WRULICH, Herwig
IPC分类号： B21B45/08
CPC分类号： B21B45/08
摘要： In a process for descaling a workpiece (22), in particular rolling stock, the workpiece is moved past rotary descaling means, and at least one liquid jet which rotates around an axis of rotation that crosses the surface (23) to be descaled of the workpiece (22) is projected onto the surface (23) to be descaled. In order to cool down the workpiece (22) only to a minor extent and to generate a high spraying pressure with a low working liquid pressure, the liquid jet is intermittently generated, i.e. interrupted at intervals.
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47.发明授权VERFAHREN UND EINRICHTUNG ZUM AUFBEREITEN VON REDUKTIONSGAS ZUR REDUKTION VON ERZEN 失效方法和装置用于治疗气体减排减少矿石
公开(公告)号：EP0966546B1
公开(公告)日：2001-10-17
申请号：EP98909204.4
申请日：1998-03-11
发明人： ROSENFELLNER, Gerald
IPC分类号： C21B13/00
CPC分类号： C21B13/0073 , Y02P10/136
摘要： The aim of the invention is to provide a method which optimizes the reduction process at a given ore quality. The reducing gas (7) is analyzed by the gas sensor (1) and divided into two split streams. The mass flow of the split stream to be oxidized is controlled by means of the control valve (3) and then reaches the burner (4) where oxidation takes place. The other reducing gas (7) split stream is controlled at the shaft by means of the control valve (2) in line with the quantity of gas required, raised to the required temperature in the heat exchanger (11) and combined with the oxidized split stream of reducing gas. The gas components are determined by means of the gas sensor (13) and, if necessary, the gas supply (14) is defined on the basis of mathematical formulae. The invention makes it possible to guide the reduction process towards its stoichiometric optimum at a given ore quality. A further advantage is that the reducing gas can be heated to the desired temperature with a very low oxidant component, so that the gas analysis can be adjusted in wide ranges.
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48.发明授权
公开(公告)号：EP0879100B1
公开(公告)日：2001-10-17
申请号：EP97900893.5
申请日：1997-01-28
CPC分类号： B21B1/466 , B21B1/34 , B21B1/463 , C21D9/68 , Y10T29/49991
摘要： In order to ensure optimum temperature conditions for a metal strip (9, 9') during reverse rolling, two or more strips (9, 9') are alternatively rolled. While one strip (9) is being rolled in at least one roll pass, the other strip(s) (9') are wound up into a coil (12) and held back in a waiting position.
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公开(公告)号：EP1140389A1
公开(公告)日：2001-10-10
申请号：EP99950385.7
申请日：1999-11-02
发明人： FLICK, Andreas , LETTMAYR, Gernot , EIDINGER, Helmut , WIMMER, Franz , JAHN, Werner , WATZINGER, Josef
IPC分类号： B22D11/05
CPC分类号： B22D11/0408
摘要： The invention relates to a continuous casting mould for the continuous casting of a steel strand, comprising broad side-walls (1, 2) positioned opposite each other as well as narrow side-walls (3, 4) which can be fixed between the broad side-walls, are arranged such that they can be displaced along said broad side-walls perpendicular to the direction of casting (6), are situated opposite each other and in the direction of casting narrow in a wedge-like manner. The broad walls (1, 2) have a funnel-shaped pouring area (20) which extends in the direction of casting (6) until the mould end and the distance between the broad side-walls (1, 2) in the direction of the narrow side-walls (3, 4) and in the direction of casting (6) is reduced continuously at least in partial areas. The broad side-walls (1, 2) are configured such that they converge in the area of displacement of the narrow side-walls (21, 22) in the direction of said narrow side-walls (3, 4). To be able to adjust the dimensions of the mould such that the width of the strand to be cast can be adjusted without effect on strand thickness and the strand thickness of the strand to be cast can be maintained constant across the full strand width the invention provides for the distance between the broad side-walls (1, 2) at the mould end to be constant across the full width of said broad side-walls and for at least one of the broad side-walls (1, 2) to be positioned on a mould carrying structure (11) such that it can be displaced and tilted in relation to the opposite broad side-wall and to be connected to an adjustment device (12, 13).
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公开(公告)号：EP0925375B1
公开(公告)日：2001-10-04
申请号：EP97903144.0
申请日：1997-03-03
发明人： WURM, Johannes
IPC分类号： C21B13/14
CPC分类号： C21B13/14 , Y02P10/122 , Y02P10/126 , Y02P10/128 , Y02P10/136 , Y02P10/212
摘要： The invention relates to a process for the production of spongy metal from materials formed from metal ore. During said process a process gas containing CO and H2 and coming from a gas source (A, B) is compressed, optionally subjected to CO2 elimination and heating, and supplied as a reduction gas to a reduction zone (21). After reaction with the metal ore, said process gas is removed from the reduction zone (21) in the form of an export gas for further use for a consumer. For the reduction zone (21) to be supplied with sufficient reduction gas even when there is an incident, a process gas containing CO and H2 and originating from at least two gas sources (A, B) is supplied to said reduction zone (21) as the reduction gas, and the failure of one of the gas sources (A, B) is compensated in that at least one part of the export gas originating from the reduction zone (21) is re-circulated, said export gas undergoing compression, CO2 elimination and, optionally, heating, and being delivered to the reduction zone (21) along with the process gas originating from the other intact gas source(s) (A or B).
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