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.

Provided herein are an oven and a method of opening or closing the door. In more detail, disclosed herein are an oven having a door opening or closing unit capable of opening or closing a door driven by remote control and a method of opening or closing the door of the oven. Some of embodiments provide an oven capable of opening or closing a door by using a door opening or closing unit according to remote control and a method of opening or closing the door of the oven.

Provided herein are an oven and a method of opening or closing the door. In more detail, disclosed herein are an oven having a door opening or closing unit capable of opening or closing a door driven by remote control and a method of opening or closing the door of the oven. Some of embodiments provide an oven capable of opening or closing a door by using a door opening or closing unit according to remote control and a method of opening or closing the door of the oven.

An integrated refractory management system includes: a cable module, at least a portion of which is inserted into a refractory; a measurement module, disposed outside the refractory, for measuring a current signal flowing through the cable module; an integrated management module for determining the state of the refractory on the basis of the current signal measured by the measurement module, displaying the state of the refractory, and generating management information on the refractory; and a local terminal for receiving the management information from the integrated management module.

An integrated refractory management system includes: a cable module, at least a portion of which is inserted into a refractory; a measurement module, disposed outside the refractory, for measuring a current signal flowing through the cable module; an integrated management module for determining the state of the refractory on the basis of the current signal measured by the measurement module, displaying the state of the refractory, and generating management information on the refractory; and a local terminal for receiving the management information from the integrated management module.

Disclosed is a blast furnace apparatus includes: a rotating chute; a profile measurement device configured to measure surface profiles of a burden charged into the furnace; and a tilt angle controller configured to control a tilt angle of the chute, in which the device includes a radio wave distance meter installed on the furnace top and configured to measure the distance to the surface of the burden, derives the profiles on a basis of distance data for the entire furnace obtained by scanning a detection wave of the distance meter in the furnace in a circumferential direction, and includes at least one of arithmetic units configured to command during rotation, on a basis of the surface profiles obtained, the controller to change the tilt angle of the chute, or a controller to change a rotational speed of the chute or a feed speed of the burden fed to the chute.

An insulated case includes a top portion and a bottom portion of the insulated case. The bottom portion include a metallic shell and an insulation portion. The bottom portion also includes a cut-out located on an outer side of the metallic shell. The insulated case also includes a component storage area that includes a camera, an energy source, a digital recorder, and a coolant, wherein the component storage area is sealed off. The insulated case also includes a camera located in the component storage area. The camera is configured to capture videos via the cut-out.

An insulated case includes a top portion and a bottom portion of the insulated case. The bottom portion include a metallic shell and an insulation portion. The bottom portion also includes a cut-out located on an outer side of the metallic shell. The insulated case also includes a component storage area that includes a camera, an energy source, a digital recorder, and a coolant, wherein the component storage area is sealed off. The insulated case also includes a camera located in the component storage area. The camera is configured to capture videos via the cut-out.