MENISCUS FLOW CONTROL DEVICE AND MENISCUS FLOW CONTROL METHOD USING SAME

摘要

A meniscus flow control device according to the present invention comprises: a meniscus flow detection unit for detecting, in a meniscus flow form of molten steel, relative temperature values for positions measured by a plurality of temperature measurers, and relatively comparing the temperature values measured by the plurality of 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 means of 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. Therefore, according to the embodiments of the present invention, a plurality of temperature measurers, installed on the upper side of the mold, detect temperatures for positions in the width direction of the meniscus and display the same relatively. Accordingly, the temperatures are converted into relative heights for positions in the molten steel meniscus, thereby allowing the meniscus flow state to be detected. In addition, it is easy to conduct monitoring of the normal or abnormal state of the molten steel meniscus, and it is possible to reduce the occurrence of molten steel meniscus defects.