The invention relates to a dental furnace (10) for dental restorations comprising a firing chamber into which, in particular between a furnace bottom part (14) and a furnace upper part (12), the dental restoration, in particular within a muffle, can be introduced, and a sensor that is connected with a control device (52) for the dental furnace (10), characterized in that the sensor, in particular the temperature sensor (22), is arranged outside the firing chamber and comprises a detection range (40) that also extends outside the firing chamber.

A method for detecting straightness deviations and/deformations in a rotary kiln (1), the rotary drum (4) of which includes bearing rings (6) spaced apart from one another in the axial direction and respectively supported on rollers (7), involves scanning the outer surface area (5) of the rotary drum (4), the bearing rings (6), the rollers (7) and/or the shafts (17) of the rollers (7) in a contactless fashion with the aid of at least one scanning device (12) such that three-dimensional position data regarding the scanned objects is obtained, and evaluating the three-dimensional position data with respect to the occurrence of a deviation of the rotary kiln axis (3) from a straight line, a deviation of the rotary drum (4) from a cylindrical shape and/or a deviation of the rotational axes (8) of the rollers from a line extending parallel to the rotary kiln axis (3). A device for detecting straightness deviations and/or deformations in a rotary kiln (1) is also provided.

A method for detecting straightness deviations and/deformations in a rotary kiln (1), the rotary drum (4) of which includes bearing rings (6) spaced apart from one another in the axial direction and respectively supported on rollers (7), involves scanning the outer surface area (5) of the rotary drum (4), the bearing rings (6), the rollers (7) and/or the shafts (17) of the rollers (7) in a contactless fashion with the aid of at least one scanning device (12) such that three-dimensional position data regarding the scanned objects is obtained, and evaluating the three-dimensional position data with respect to the occurrence of a deviation of the rotary kiln axis (3) from a straight line, a deviation of the rotary drum (4) from a cylindrical shape and/or a deviation of the rotational axes (8) of the rollers from a line extending parallel to the rotary kiln axis (3). A device for detecting straightness deviations and/or deformations in a rotary kiln (1) is also provided.

A method for identifying, classifying, and sending notification of an electric arc furnace's (EAF) anomalies to improve the EAF efficiency. The method includes the steps of establishing baseline state measurements of the EAF, receiving new state measurements of the EAF and statistically testing the new state measurements against the baseline state measurements. The method further includes the steps of identifying as an anomaly a failed statistical test, classifying the identified anomaly and sending notification of the classified anomaly to a configurable list of recipients.

A method for identifying, classifying, and sending notification of an electric arc furnace's (EAF) anomalies to improve the EAF efficiency. The method includes the steps of establishing baseline state measurements of the EAF, receiving new state measurements of the EAF and statistically testing the new state measurements against the baseline state measurements. The method further includes the steps of identifying as an anomaly a failed statistical test, classifying the identified anomaly and sending notification of the classified anomaly to a configurable list of recipients.

A temperature controller for a gas oven includes a control module, a temperature measurement module, a prompt module, and a gas regulating module. The control module is connected to the temperature measurement module, the prompt module, and the gas regulating module, respectively, to transmit a signal. The temperature measurement module is arranged in the oven to measure a temperature in the oven and return the temperature to the control module. The prompt module is configured to receive an excessive temperature or a normal temperature of the control module, and provide a prompt. The gas regulating module is configured to receive a temperature and a control quantity returned by the control module, and control an air intake quantity, to adjust the temperature or turn on or turn off the oven. A micro-switch is provided and an on signal and an off signal of the micro-switch are transmitted to the control module.

A temperature controller for a gas oven includes a control module, a temperature measurement module, a prompt module, and a gas regulating module. The control module is connected to the temperature measurement module, the prompt module, and the gas regulating module, respectively, to transmit a signal. The temperature measurement module is arranged in the oven to measure a temperature in the oven and return the temperature to the control module. The prompt module is configured to receive an excessive temperature or a normal temperature of the control module, and provide a prompt. The gas regulating module is configured to receive a temperature and a control quantity returned by the control module, and control an air intake quantity, to adjust the temperature or turn on or turn off the oven. A micro-switch is provided and an on signal and an off signal of the micro-switch are transmitted to the control module.

A method for monitoring the wear of a refractory lining of a blast furnace using modelling of a part of the blast furnace and thermal field calculation. Computer program allowing to perform such a method.

A method for monitoring the wear of a refractory lining of a blast furnace using modelling of a part of the blast furnace and thermal field calculation. Computer program allowing to perform such a method.

An apparatus for controlling the concentration of oxygen in a heating furnace according to one embodiment of the present invention may comprise: a first oxygen concentration bias setting unit for receiving a set first oxygen concentration bias; a second oxygen concentration bias calculation unit for, when a measured value of carbon monoxide in exhaust gas is out of an allowable carbon monoxide range, calculating a second oxygen concentration bias by using the measured value of carbon monoxide and the concentration of oxygen measured in the exhaust gas; an oxygen concentration bias providing unit for providing an oxygen concentration bias by using the first oxygen concentration bias and the second oxygen concentration bias; and an oxygen concentration set value correction unit for correcting a set value of the concentration of oxygen by using the oxygen concentration bias.