Provided is a meniscus flow control device that includes: a meniscus flow detection unit for detecting, in a meniscus flow form of molten steel, relative temperature values for positions measured by temperature measurers, and relatively comparing the temperature values measured by the temperature measurers to thereby determine the flow state of the molten steel meniscus to be normal or abnormal; a magnetic field generation unit, installed outside a mold, for generating a magnetic field and controlling the flow of the molten steel by the magnetic field; and a flow control unit for maintaining the operation of the magnetic field generation unit in the current state when the meniscus flow state detected by the meniscus flow detection unit is determined to be normal, and for controlling the magnetic field generation unit to adjust the meniscus flow to be normal when the detected meniscus flow state is determined to be abnormal.

A molten metal level measuring device in a continuous molten metal level measuring device uses temperature compensation. The device includes a cylindrical bobbin, a liquid level measuring unit helically wound around an outer surface of the bobbin, a circular inner cylinder in which the bobbin and the liquid level measuring part are located and which seals the bobbin and the liquid level measuring part from the outside and has the same axial direction as the bobbin, and a cylindrical protective tube in which the inner cylinder is located and which has the same axial direction as the bobbin and has one open end. Thermocouples extend axially in the space between the inner cylinder and the protective tube, and a control unit controls the liquid level measuring part to measure a liquid level of the molten metal based on the temperatures measured by the thermocouples.

According to a first embodiment, a molten metal transferring system is provided. The system includes a device capable of lifting molten metal from a bath to a launder at varying quantity per unit of time. The system includes a sensor, such as a laser, arranged to monitor molten metal flow in the launder. The launder further includes a removeable insert facilitating, reversible modification of a cross-sectional area of the launder.

A method detects a level of a melt contained by an oscillating mold. The method includes a) sensing radiation interacted with the melt and generating from the sensed radiation radiation signals, such that the generated radiation signals are varied by the mold oscillation, b) determining a radiation signal variation of the generated radiation signals, c) determining an oscillation deflection variation of the oscillating mold, and d) determining from the determined oscillation deflection variation and the determined radiation signal variation, the level of the melt.

The present invention is directed to a molten metal transfer system. The system includes a pump having interchangeable low flow and high flow impellers and selective low flow and high flow transfer troughs.

A molten metal level measuring device in a continuous molten metal level measuring device uses temperature compensation. The device includes a cylindrical bobbin, a liquid level measuring unit helically wound around an outer surface of the bobbin, a circular inner cylinder in which the bobbin and the liquid level measuring part are located and which seals the bobbin and the liquid level measuring part from the outside and has the same axial direction as the bobbin, and a cylindrical protective tube in which the inner cylinder is located and which has the same axial direction as the bobbin and has one open end. Thermocouples extend axially in the space between the inner cylinder and the protective tube, and a control unit controls the liquid level measuring part to measure a liquid level of the molten metal based on the temperatures measured by the thermocouples.

According to a first embodiment, a molten metal transferring system is provided. The system includes a device capable of lifting molten metal from a bath to a launder at varying quantity per unit of time. The system includes a sensor, such as a laser, arranged to monitor molten metal flow in the launder. The launder further includes a removeable insert facilitating, reversible modification of a cross-sectional area of the launder.

Provided are a method and a system for a slag thickness detection and a slag-adding prediction. The method includes: acquiring real-time measurement data and real-time auxiliary data of a slag point on a surface of a protective slag layer of a casting mold; calculating a real-time slag thickness value corresponding to the slag point by using the real-time measurement data and the real-time auxiliary data of the slag point; and predicting a location on the surface of the protective slag layer where a slag-adding is to be performed and a slag-adding time when the slag-adding is to be performed based on a change in the real-time slag thickness value corresponding to the slag point by taking a preset slag thickness value as a reference.

Mould provided with a detection system of the level a liquid metal within a crystallizer of the mould in which the detection system is based on the transmission of at least one detection signal transmitted towards the crystallizer and a phase of reception of at least one received measuring signal dependent on the transmitted detection signal and mould and continuous casting machine provided with said mould.

A system of detection of a temperature of a crystallizer or a level of liquid metal in the crystallizer has a sensor positioned within a mould of the crystallizer. The sensor has a case, a closing cover positioned at a detection face of the case, a plurality of ultrasonic elements arranged in vertically spaced relation to a length of the case, and a plurality of attenuation elements positioned sideways with respect to the closing cover. The plurality of ultrasonic elements include a first ultrasonic element, a second ultrasonic element and a third ultrasonic element positioned in orthogonal relation to the length of the sensor. The plurality of ultrasonic elements transmit and receive ultrasonic waves.