Gas-shielded refiner capable of improving refining efficiency

Abstract

The invention relates to the technical field of steel metallurgy refining, and particularly relates to a gas-shielded refiner capable of improving the refining efficiency. The gas-shielded refiner comprises a support, wherein the upper end of the support is provided with a tank body, a gas storage box is arranged on the inner side of the lower end of the support, one side surface of the gas storage box is communicated with a gas inlet pipe, a first chamber is formed at one end of the tank body, a second chamber is formed at the other end of the tank body, and a spraying plate is arranged at the upper end of the interior of the tank body. According to the invention, a protective gas is introduced through a lower gas inlet to be in contact with molten steel, argon and molten steel are fullystirred and contacted by being matched with the work of a stirring rod; the protective gas is introduced through an upper gas inlet to be matched with the effects of the spraying plate and the spray head, the molten steel is sprayed out in a spraying mode, the contact area of the molten steel and protective gas is increased, the gas dissolved in the molten steel and suspended non-metallic inclusions are conveniently and completely eliminated, and the refining efficiency of the molten steel is improved; and meanwhile, due to the use of a purification box, the emission of harmful gas is also avoided.

Description

technical field [0001] The invention relates to the technical field of steel metallurgical refining, in particular to a gas shielded refining machine capable of improving refining efficiency. Background technique [0002] The out-of-furnace refining process is a refining process commonly used in steel mills. In order to improve the purity of steel, the research on the out-of-furnace refining process technology has been continuously researched and developed, so as to improve the out-of-furnace refining process technology under the condition of reducing production costs. And equipment, and in the current iron and steel metallurgy development process, out-of-furnace refining has become an important way to ensure the quality and practicability of iron and steel. The use of high-purity raw materials will inevitably increase the development and application costs of large amorphous alloys on the one hand, and on the other hand, the supply capacity of high-purity raw materials will ...

AI Technical Summary

Problems solved by technology

[0003] The existing molten steel refining is too cumbersome and complicated. When refining with protective gas, the contact area between the gas and molten steel is not sufficient, so that the elimination of dissolved gas and suspended non-metallic inclusions in molten steel is not thorough enough, and it is easy to The refining effect is low, and harmful gas will be produced during the reaction process. If the gas is discharged, if it is not handled properly, it will affect the production environment and air quality.

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