Abstract: Apparatus for treating containers includes a handling device for the containers wherein the handling devices has a movable carrier with which the containers can be moved on a transport path, and wherein the handling devices is assigned at least one handling station, wherein the transport speed of the handling device can be controlled in such a way that the transport speed of the handling device can be synchronised with the transport speed of the transport device and/or a further transport device during transfer and/or discharge of the containers and the transport speed of the handling device can be reduced after the transfer of the containers.

Abstract: The present disclosure relates to a method for photometrical charting of a light source (Q, 3) clamped within a positioning device (1) and stationary relative to an object coordinate system (T) by means of a luminance density measurement camera (4) arranged stationary relative to a world coordinate system (W), wherein the light source (Q, 3) is moved between a first actual measurement position (P1?) and at least one further actual measurement position (P2? to P5?) along a kinematic chain of the positioning device (1) within the world coordinate system (W), wherein a luminance density measurement image (81 to 85) describing the spatial distribution of a photometric characteristic within a measurement surface is recorded by means of the luminance density measurement camera (4) in each actual measurement position (P1? to P5?) with the light source (Q, 3) turned on, and wherein the position and/or orientation of the object coordinate system (T) relative to the world coordinate system (W) is recorded in each actua

Abstract: Redox flow battery including a cell assembly and a tank device for receiving electrolyte, the cell assembly including a plurality of cells, and the battery including at least one measuring device for determining an electrolyte property, including at least one measuring cell, the at least one measuring cell including at least one connection for supplying electrolyte, at least one connection for discharging electrolyte and a channel, which is connected to one of the electrolyte circuits in such a way that during a circulation of the electrolyte, the electrolyte flows through the channel, and the channel including a first section and a second section, the cross section of the first section being smaller than the cross section of the second section, and the connection for discharging electrolyte being connected to the first section by a connection line and the connection for supplying electrolyte being connected to the second section by a connection line.

Abstract: A redox-flow battery includes a cell arrangement and a tank device for holding electrolyte. The battery includes a measuring device for determining an open circuit voltage and a circulating module, and the measuring device for determining an open circuit voltage includes at least one measuring cell and at least four connections. One connection is provided for the supply of anolyte, one connection for the removal of anolyte, one connection for the supply of catholyte, and one connection for the removal of catholyte. The circulating module includes at least one pump head and at least two pump impellers, and the at least one measuring cell is integrated into the pump head. A connection of the measuring device is connected to a pressure side of a pump impeller, and the associated connecting line is integrated in the pump head.

Abstract: A method for transferring sediment in a body of water, a discharge element being situated in the body of water, which is connected to a hydroelectric power station by a connecting line in such a way that water may flow through the connecting line, and a device for providing a sediment/water mixture into the connecting line, and the device including a monitor for monitoring the sediment concentration in the provided sediment/water mixture, and a controller connected to the device to control the quantity of the sediment contained in the sediment/water mixture, and the method including: taking sediment; transferring sediment to the device for providing a sediment/water mixture; introducing the sediment/water mixture into the connecting line, the controller activating the device in such a way that the sediment quantity introduced per time interval does not exceed a predefined maximally permissible quantity, the maximally permissible sediment quantity depending on the instantaneous operating mode of the hydroelect

Abstract: Disclosed is a device and method for reducing network feedback during operation of an electric-arc furnace (10). The electric-arc furnace (10) has three lines (7) with one electrode (4) each. A sensor (15) for measuring the currently flowing current and a sensor (16) for measuring the currently applied voltage are provided in each line. A control and regulating unit (30) calculates an electrical actual value (Eist1, Eist2, Eist3). A semiconductor tap changer (20) is assigned to the furnace transformer (6) such that, by suitably selecting three target winding taps (TSOLL1, TSOLL2, TSOLL3) of a primary side (P) of the furnace transformer (6), a target current (IS1, IS2, IS3) is adjustable in each line (7).

Abstract: The invention relates to a filter device (1) and a filter element (8) for cleaning an air stream that is charged with particles. The filter element (8) comprises a bag-type filter sock (17) consisting of an air-permeable, flexible material and a support body (21) in the interior of the bag-type filter sock (17). The first axial end of the bag-type filter sock (17) is closed and the second axial end has an air outlet that allows the cleaned air stream to exit the filter sock (17).

Abstract: An electric arc furnace has a safety device (3) connected to an earthed peripheral device. An earth cable (4) is provided to the peripheral device of the arc furnace (2). An ammeter (6) measures the current across the earth cable (4). A circuit breaker (8) in the earth cable (4) has a tripping time of less than 100 ms.

Abstract: A method for controlling a melt process in an arc furnace, including a signal processing component, program code, and data medium for performing 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 representing the distribution of melting material, melt, and slag in the furnace fill. A characteristic values are generated in priority sequence for: thermal radiation impinging on the furnace wall of the container, the lumpiness of the melting material in the volume of furnace fill, and the change to the portion of solid melting material contacting the furnace wall. The energy distribution at the electrodes is chanced by a control system based on the characteristic values in priority sequence, such that thermal load peaks are dampened or even completely prevented.

Abstract: An electric arc furnace (2) and to a method for operating an electric arc furnace having at least one electrode (4a, 4b, 4c) for generating an electric arc (6a, 6b, 6c), in which the desired value of the current (I) guided to the electrode (4a, 4b, 4c) oscillates about a predetermined base value (I0).

Abstract: A dispersion is provided having a dispersion medium and a plurality of colloid particles finely distributed in the dispersion medium, the colloid particles being electrically conductive, the dispersion being a functional ink for the wetting of an inner wall of a contacting opening of a substrate using a print process.

Abstract: In a method for operating an arc furnace (2) with at least one electrode (3a, 3b, 3c), a solid material fed to the arc furnace (1) is melted by an arc (1) formed by the at least one electrode (3a, 3b, 3c). A measurement (MM) for the mass of one part of the solid material arranged on a boundary (2) of the arc furnace (1) is determined, and using the determined measurement (MM), a process variable of the arc furnace (1) is controlled and/or regulated. A method which can reduce the risk of electrode damage caused by metal scraps falling into the treated area is provided.

Abstract: Disclosed are an apparatus and method for process-based power regulation of an electric arc furnace (10). A plurality of sensor types (15, 16, 17) detect presently active operating parameters of the electric arc furnace (10) in dependence on time. From the measured values, a control and regulating unit (30) determines the necessity of whether to switch other winding taps (TS1 . . . TSN) of the primary side (6P) of the furnace transformer (6) by a semiconductor tap changer (20) in order to effect a modified electrical power to prevent thermal and/or mechanical damages to the electric arc furnace (10).

Abstract: Disclosed is a device and method for reducing network feedback during operation of an electric-arc furnace (10). The electric-arc furnace (10) has three lines (7) with one electrode (4) each. A sensor (15) for measuring the currently flowing current and a sensor (16) for measuring the currently applied voltage are provided in each line. A control and regulating unit (30) calculates an electrical actual value (Eist1, Eist2, Eist3). A semiconductor tap changer (20) is assigned to the furnace transformer (6) such that, by suitably selecting three target winding taps (TSOLL1, TSOLL2, TSOLL3) of a primary side (P) of the furnace transformer (6), a target current (IS1, IS2, IS3) is adjustable in each line (7).

Abstract: Disclosed is a device and a method for regulating an electric arc furnace (10) in the initial phase of a smelting process. A sensor (16) for measuring the present voltage and a sensor (15) for measuring the presently flowing current are provided in each line (7) of the electric arc furnace (10). The actual impedance (Zist) is time-dependently calculated by a control and regulating unit (30). An on-load tap changer (20) that is constructed as a semiconductor tap changer, is assigned to a furnace transformer (6) with a primary side (6P) and a secondary side (6S). The semiconductor tap changer (20) realizes a cycle time of a few milliseconds.

Abstract: A dispersion is provided having a dispersion medium and a plurality of colloid particles finely distributed in the dispersion medium, the colloid particles being electrically conductive, the dispersion being a functional ink for the wetting of an inner wall of a contacting opening of a substrate using a print process.

Abstract: A material is melted in an arc furnace by a plasma arc produced by at least one electrode. The plasma arc is regulated by one or more additional substances which influence the plasma composition introduced into the plasma, increasing the efficiency and output of the arc furnace.

Abstract: In a method, a variable characterising an operational state of an electrode of an arc furnace can be determined. An electrode flow guided to the electrode is detected in the method and the structure-borne noise oscillations are detected. From the detected electrode flow, a flow evaluation signal associated with the frequency range of the detected electrode flow is determined. From the detected structure-borne noise oscillations, an oscillation evaluation signal that is associated with a frequency range of the detected structure-borne noise oscillations is detected and a quotient from the oscillation evaluation signal and the flow evaluation signal is formed as a radiation measurement for at least one frequency common to the detected electrode flow and the detected structure-borne noise oscillation.

Abstract: 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.

Abstract: An arc furnace, a control and/or regulating device for an arc furnace, and a method for operating an arc furnace are provided, wherein an arc for melting metal is generated by at least one electrode, wherein an arc associated with the electrode(s) has a first radiation power based on preselected operating parameters, wherein the arc furnace is operated according to a predefined operating program based on an expected process sequence, wherein monitoring is performed to detect whether an undesirable deviation exists between the actual process sequence and the expected process sequence. Because a modified second radiation power is specified if a deviation is present, and a modified second set of operating parameters, e.g., impedance value(s), is determined based on the modified second radiation power, a method is provided that permits a minimal melting time while minimizing consumption of operating resources, e.g., with respect to arc furnace cooling.