摘要:
Die Erfindung betrifft einen Dentalofen, mit einer mit einer Heizvorrichtung ausgestatteten Brennhaube, die relativ zu einer zur Aufnahme eines Dentalrestaurationsteils bestimmten Unterlage für das Öffnen und Schließen des Dentalofens beweglich gelagert ist, und mit einer Wärmeerfassungsvorrichtung, die auf einen Bereich oberhalb der Unterlage, insbesondere auf ein oder mehrere Dentalrestaurationsteile, gerichtet ist, und mit einer Steuer- oder Regelvorrichtung für den Dentalofen, an die die Wärmeerfassungsvorrichtung angeschlossen ist, wobei die Wärmeerfassungsvorrichtung als Wärmebildkamera (30) ausgebildet ist, die bei teilweise oder vollständig offener Brennhaube (12) auf den Bereich oberhalb der Unterlage gerichtet ist und der Steuer- oder Regelvorrichtung ein mindestens zweidimensionales, in Form einer Matrix vorliegendes Bild des oder der eingestellten Dentalrestaurationsteile (60) und/oder einer für die Erzeugung der Dentalrestaurationsteile (60) bestimmten Muffel (26) zuleitet.
摘要:
A method, implemented by a software-controlled computer device and/or by dedicated hardware, is designed for probing an electrically conductive target material (M), e.g. molten metal or semiconductor material, in a metallurgical vessel (1). In the method, a measurement signal is acquired from a sensor (4), which is inserted into the target material (M), during a relative displacement between the electrically conductive target material (M) and the sensor (4), the measurement signal being indicative of electrical conductivity in the vicinity of the sensor (4). The measurement signal is generated to represent momentary changes in an electromagnetic field around the sensor (4), which is created by operating at least one coil (82; 92) in the sensor (4). Based on the measurement signal, a signal profile is generated to be indicative of the electrical conductivity as a function of the relative movement. The method enables a probing of the internal distribution of the target material (M) in the vessel (1) at any level of detail. The signal profile may be analyzed to provide information about zones/layers (S, M1, M2) that differ by e.g. composition of matter, degree of melting, degree of mixing.
摘要:
A source iron is continuously fed into an electric arc furnace is melted therein, while a state change of the source iron fed in the furnace is detected to maintain the molten metal in the electric arc furnace in a stable state. An electric arc melting facility 22 includes a melting chamber 1 configured to melt a source iron 20 therein by electric arc discharge generated from an electrode 2, and a source iron feeder 8 configured to continuously feed the source iron to the melting chamber. The facility further includes a state change detector 12a, 12b, 12c configured to detect a state change of the melting chamber when the electric arc discharge is generated from the electrode, and a controller 6 configured to adjust a feed rate at which the source iron feeder feeds the source iron to the melting chamber, based on a detection result of the state change detectors.
摘要:
This invention relates to monitoring the operability of a travelling grate used for the transport of bulk material in a plant for agglomerating ores, wherein by means of a contactless distance measurement the deflection of a crossbeam of the travelling grate in a sintering machine is measured at a specified point of the path of circulation of the travelling grate, the respective crossbeam measured is identified automatically and the distance measurement value signals and the identification measurement value signals are combined for evaluation.
摘要:
The invention relates, inter alia, to a melting furnace (10). According to the invention, at least one vibration inducer (40, 41, 42) is installed on a furnace vessel (20), at least one sensor (50, 51, 52) is arranged opposite or at another place on the furnace vessel and a signal recording and calculation unit (90) is connected to the at least one vibration inducer and the at least one sensor. In this way, for example, the melting process can be monitored and the progress of melting can be measured by measuring the signals of the vibration inducement after having passed through the interior of the furnace by means of this sensor and evaluating the signals by means of the signal recording and calculation unit. This makes it possible, for example, to carry out process-controlled, state-oriented regulation of the melting process and match the electric arc power optimally to the respective state of the melting process. The signal of the sensor is preferably correlated with the excitation signal of the vibration inducer and/or conclusions are drawn about the melting process by combined evaluation of the vibration inducement and the measured vibration.
摘要:
A material supply apparatus and process for co-injecting heated solid metalliferous material and solid carbonaceous material via a solids injection lance into a direct smelting vessel are disclosed.
摘要:
The present invention relates to a method for measuring the conditions inside a power boiler wherein a sootblower is used as a measuring probe. The invention also relates to a system for measuring the conditions in a power boiler, comprising a control unit, at least one sensor and a measuring probe placed inside said furnace, wherein said probe is arranged on a soot blower.
摘要:
Die Erfindung bezieht sich auf eine Vorrichtung zur Durchführung von Arbeiten unter Hitzeeinwirkung in einem metallurgischen Gefäß (1), umfassend eine bewegbare Trageeinrichtung (2) im Bereich der Ofenbühne oder der Arbeitsbühne (3) mit einem in der Trageeinrichtung schwenkbaren Teleskoparm (4) oder dgl. Ausleger und einem mit diesem in das Innere (11) des metallurgischen Gefäßes (1) einbringbaren Arbeitsmittel (5). Um eine Vorrichtung zu schaffen, welche bei geringem Platzbedarf in vielen Ausführungsformen der Trageeinrichtung ein Vielzahl von Arbeiten gesteuert in einem metallurgischen Gefäß ausführen kann, ist erfindungsgemäß vorgesehen, dass das Arbeitsmittel (5) am Ausleger (4) bezogen auf dessen Längsachse (41) gesteuert drehbar (51) und/oder schwenkbar (52) gehalten ist und am Arbeitsmittel (5) eine Mehrzahl von aktivierbaren Funktionsmitteln (6) positioniert und/oder positionierbar sind.
摘要:
The invention relates to a method and arrangement for measuring at least one physical magnitude, such as temperature, flow or pressure of the cooling fluid flowing in an individual cooling element cycle (3) of a cooling element (1) in a metallurgical furnace. The arrangement includes a supply header (2) for distributing the cooling fluid and for feeding it to the cooling element cycles (3) of the cooling elements (1), and a collection header (4) for collecting and receiving cooling fluid from the cooling element cycles (3) of the cooling elements (1). The arrangement includes a survey line (5) that is by intermediation of a valve arrangement (6) in fluid connection with at least one cooling element cycle (3), so that the cooling fluid is conducted alternatively through the survey line (5) to the collection header (4) or past the survey line (5) to the collection header (4). The survey line (5) comprises at least one measuring device (7) for measuring at least one physical magnitude of the cooling fluid flowing in the survey line (5), and for measuring the cooling element cycle (3).