An electromagnetic stirrer for pre-furnace modification of molten steel

Abstract

The invention discloses an electromagnetic stirrer for metamorphism treatment in front of molten steel furnace, which comprises a first casing, a sealing top cover is arranged on the top of the first casing, and the upper surface of the sealing top cover is fixed by welding. For the handle, two second housings are fixedly installed on the outer peripheral surface of the first housing, and the inner side of the second housing is provided with a clamping base; The core and the coil are clamped to keep the magnetic core and coil fixed, safe and stable; the degree of tumbling of the molten steel in the stirrer can be changed by changing the position of the magnetic core coil in the stirrer shell and by changing the size of the magnetic core and coil control, so that the molten steel can absorb the modificant very effectively, which not only reduces the amount of the modificant, but also stabilizes the metamorphic effect and overcomes the phenomenon of "deterioration and recession". Stabilization of novel modifiers for industrial production.

Description

technical field [0001] The invention relates to the technical field of electromagnetic stirrers, in particular to an electromagnetic stirrer for pre-furnace modification of molten steel. Background technique [0002] The essence of the electromagnetic stirrer is to strengthen the movement of the molten steel with the help of the electromagnetic force induced in the liquid phase cavity of the slab. Specifically, the alternating magnetic field excited by the stirrer penetrates into the molten steel of the slab, and induces a current in it. The induced current interacts with the local magnetic field to generate electromagnetic force, which is a body force and acts on the volume of molten steel. element, so as to promote the movement of molten steel. [0003] The molten steel needs to be modified. The modified treatment is to add some fine nucleating agents (also known as inoculants or modifiers) to the molten metal to form a large number of dispersed artificial non-spontaneous...

AI Technical Summary

Problems solved by technology

Therefore, it is necessary to strengthen the research on the key issues of the modificator and how to improve the effective and uniform function of the modificator in the pre-furnace treatment process. This purpose can be easily and quickly achieved by using an electromagnetic strong stirrer. The internal magnetic core and coil of the electromagnetic stirrer adopt a single customized model, and the applicability is poor at the same time. The design of the electromagnetic stirrer is often complicated and bulky, which is not convenient for people to operate

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