A furnace assembly for a metal-making process, including: an electric arc furnace configured for flat bath operation and having a bottom, and an electromagnetic stirrer configured to be arranged underneath the bottom of the electric arc furnace to enable stirring of molten metal in the electric arc furnace.

Multiple magnetic field sensors are arranged around a current-containing volume at multiple longitudinal and circumferential positions. Each sensor measures multiple magnetic field components and is characterized by one or more calibration parameters. A longitudinal primary current flows through two end-to-end electrical conductors that are separated by an arc gap, and flows as at least one longitudinal primary electric arc that spans the arc gap and that moves transversely within the arc gap. Estimated transverse position of the primary electric arc is calculated, based on the longitudinal position of the arc gap, and two or more of the measured magnetic field components along with one or more corresponding sensor positions or calibration parameters. In addition, estimated occurrence, position, and magnitude of a transverse secondary current (i.e., a side arc) can be calculated based on those quantities.

Multiple magnetic field sensors are arranged around a current-containing volume at multiple longitudinal and circumferential positions. Each sensor measures multiple magnetic field components and is characterized by one or more calibration parameters. A longitudinal primary current flows through two end-to-end electrical conductors that are separated by an arc gap, and flows as at least one longitudinal primary electric arc that spans the arc gap and that moves transversely within the arc gap. Estimated transverse position of the primary electric arc is calculated, based on the longitudinal position of the arc gap, and two or more of the measured magnetic field components along with one or more corresponding sensor positions or calibration parameters. In addition, estimated occurrence, position, and magnitude of a transverse secondary current (i.e., a side arc) can be calculated based on those quantities.

The functional condition of an induction crucible furnace is checked by first establishing a set-point parameter corresponding to an optimum functional condition of the induction crucible furnace and characterizing the vibratory behavior of same. Then, during normal operation of the furnace, an actual-value parameter of the vibratory behavior is determined. These two parameters are then compared and, if a magnitude of a difference therebetween exceeds a threshold, an alarm is generated.

The present disclosure provides a system for continuously detecting the temperature and composition of molten steel during converter steelmaking, and relates to the technical field of steelmaking detection devices. A seating brick (3) and a probe conveying pipe (5) are provided on a side wall of a converter (1), and multiple probes are provided in different detection through holes (4) within the probe conveying pipe (5) respectively. The temperature of molten steel, the oxygen activity of the molten steel and the low carbon and phosphorus content in the molten steel within the converter can be detected in real time. This facilitates an operator adopting corresponding operational means to reach the smelting end point in an optimized manner so as to improve various economic and technical indexes in steelmaking.

A measurement system is provided for predicting a future status of a refractory lining that is lined over an inner surface of an outer wall of a manufacturing vessel and exposed to an operational cycle during which the refractory lining is exposed to a high-temperature environment for producing a non-metal and the produced non-metal. The system includes one or more laser scanners and a processor. The laser scanners are configured to conduct one or more pre-operational laser scans of the refractory lining prior to the operational cycle to collect data related to pre-operational cycle structural conditions, and one or more post-operational laser scans of the refractory lining after the operational cycle to collect data related to post-operational cycle structural conditions of the refractory lining. The processor is configured to predict future status of the refractory lining after subsequent operational cycles based on the determined exposure impact of the operational cycle.

A method and a system for determining a mass of feedstock discharged by a conveyor during a first time interval t are disclosed. The method includes taking successive digital images of the feedstock in a specific zone of the conveyor being separated by a second time interval t of smaller duration than the first time interval t, for each of the second time intervals t: computing the advancing distance of a sub-volume of feedstock during the second time interval t in the specific zone of the conveyor by numerical treatment of the two successive images associated with the second time interval t; determining at least one transversal height profile of the sub-volume of feedstock; and determining an effective feedstock density for the sub-volume of feedstock. The method further includes computing the mass of feedstock discharged by the conveyor during the first time interval t into the metallurgical furnace on the basis of the advancing distance, the at least one transversal height profile and the effective feedstock density, computed or determined for each of the second time intervals t.

A method and a system for determining a mass of feedstock discharged by a conveyor during a first time interval t are disclosed. The method includes taking successive digital images of the feedstock in a specific zone of the conveyor being separated by a second time interval t of smaller duration than the first time interval t, for each of the second time intervals t: computing the advancing distance of a sub-volume of feedstock during the second time interval t in the specific zone of the conveyor by numerical treatment of the two successive images associated with the second time interval t; determining at least one transversal height profile of the sub-volume of feedstock; and determining an effective feedstock density for the sub-volume of feedstock. The method further includes computing the mass of feedstock discharged by the conveyor during the first time interval t into the metallurgical furnace on the basis of the advancing distance, the at least one transversal height profile and the effective feedstock density, computed or determined for each of the second time intervals t.

Provided are a method and to an arrangement for monitoring characteristics of a furnace process in a furnace space limited by a furnace shell of a metallurgical furnace. The arrangement comprises a process monitoring unit having a frame mounted by means of a mounting means on the metallurgical furnace outside the furnace space of the furnace shell. Also provided is a process monitoring unit for use in the method and/or in the arrangement.

Provided are a method and to an arrangement for monitoring characteristics of a furnace process in a furnace space limited by a furnace shell of a metallurgical furnace. The arrangement comprises a process monitoring unit having a frame mounted by means of a mounting means on the metallurgical furnace outside the furnace space of the furnace shell. Also provided is a process monitoring unit for use in the method and/or in the arrangement.