An oxygen blowing lance comprising: a lance body including an oxygen conduit and cooling water inlet and outlet conduits surrounding said oxygen conduit; a lance head connected to said lance body and comprising a nozzle body, said nozzle body including a central strut having bore hole, a plurality of nozzles arranged about said central strut, and a plurality of cooling chambers arranged about said central strut, wherein said plurality of nozzles are in fluid communication with said oxygen conduit for discharging oxygen from said oxygen conduit onto a metal bath in a converter vessel, and wherein said plurality of cooling chambers are in fluid communication with said cooling water inlet and outlet conduits; a temperature probe or camera assembly received in said bore hole for monitoring the temperature of said lance head or molten heat in which the lance is inserted; signal lines connected to said temperature probe for conveying signals from said temperature probe whereby operation of said blowing lance is regulated in response to said signals; and a protective pipe pressurized with a gas disposed in the bore and surrounding said temperature probe assembly and the signal lines.

An installation for recycling contaminated scrap metal includes a furnace frame and a melting furnace arranged within the furnace frame and configured to tilt, and a hood-like housing. The melting furnace includes an upper melting furnace opening and a casting device configured to cast a metal melt produced in the melting furnace into a pan. The hood-like housing is positioned on a top of the melting furnace and surrounds and covers the upper melting furnace opening. The hood-like housing includes at least one door, and a flue gas removal system coupled to the hood-like housing in a gas-tight manner and configured to tilt along with the melting furnace.

A control system for heat treatment of a stainless steel part in a furnace having an internal heat treatment chamber with a treatment atmosphere therein arranged in a plurality of zones, the system including at least one analysis apparatus for each one of the plurality of zones, each analysis apparatus in communication with a respective one of the zones for providing a gas to said zone, analyzing an atmosphere of said zone, and sensing a temperature of said zone for determining commencement of nitriding in the treatment atmosphere. A related furnace is also provided.

The invention concerns a dental furnace, with a furnace base and with a furnace hood, wherein the furnace hood includes a firing chamber for the accommodation of dental restorations, with a temperature sensor that records the temperature of the dental restoration and which is connected to a control device which controls the dental furnace, and the dental furnace (10) includes a drive unit (18) for the furnace hood (16) and the control device (30) controls the drive unit (18) based on the temperature recorded by the temperature sensor (20), namely opens the furnace hood.

A molten material apparatus can include a container including a wall at least partially defining a containment area and an opening extending through the wall. The molten material apparatus can include a protective sleeve mounted at least partially within the opening of the wall of the container. A thermocouple can be positioned within an internal bore of the protective sleeve. A method of processing molten material can include inserting a thermocouple into a protective sleeve fabricated from a refractory ceramic material, and measuring a temperature of material within a containment area of a container with the thermocouple.

A control unit can select a large-number control zone model in which the number of control zones, which are independently controlled, is large, and a small-number control zone model in which the number of control zones, which are independently controlled, is small. When a temperature is increased or decreased, the control unit can select the small-number control zone model so as to control, based on signals from temperature sensors of the respective control zones C1 . . . C5 whose number is small, heaters located on the respective control zones C1 . . . C5. When a temperature is stabilized, the control unit can select the large-number control zone model so as to control, based on signals signals from the temperature sensors of the respective control zones C1 . . . C10 whose number is large, the heaters located on the respective control zones C1 . . . C10.

Disclosed herein is a monitoring system including a detecting device configured to detect at least one of smoke and heat, an alarm in operable communication with the detecting device, wherein the alarm is configured to notify a user after the detecting device detects at least one of smoke and heat, a sensing structure configured to determine whether a heating apparatus has a temperature that is above a threshold, and a processor in operable communication with the sensing structure and at least one of the detecting device and the alarm, the processor configured to at least one of turn off at least one of the alarm and the detecting device; and reduce the sensitivity of the detecting device, when the sensing structure determines that the heating apparatus has a temperature that is above a threshold.

A temperature sensor belt includes at least one temperature sensor. The at least one temperature sensor is configured to provide an indication representative of a temperature of a workpiece. The temperature sensor belt also includes a support material disposed over the at least one temperature sensor. The support material is configured to support the at least one temperature sensor on the sensor belt. The temperature sensor belt also includes an insulative material at least partially surrounding the at least one temperature sensor. The insulative material is configured to thermally insulate the at least one temperature sensor.

A system and a method for determining/predicting a tapping time for a metal melt in an electric arc furnace (EAF), at least one electrode is provided for melting the metal melt until it reach a target tapping temperature, the EAF further includes a slag and smoke layer on the surface of the metal melt, wherein an electromagnetic stirrer is provided for stirring the metal melt.

A method of operating a copper or other metal value concentrator is disclosed. According to some embodiments, the method may comprise producing a final copper concentrate; periodically or continuously analyzing the produced final copper concentrate to obtain a grade value of the produced final copper concentrate; and diverting the produced final copper concentrate to a downstream smelting operation if/when the grade value of the produced final copper concentrate is at or above a minimum acceptable grade threshold; or, diverting the produced final copper concentrate to a downstream hydrometallurgical operation capable of producing copper cathode or other saleable copper product from the produced final copper concentrate, if/when the grade value of the produced final copper concentrate is below said minimum acceptable grade threshold. A copper concentrator capable of conducting the aforementioned method steps is also disclosed.