Steel ladle double-ventilation core

Abstract

The invention discloses a steel ladle double-ventilation core which comprises a ventilation core body, a steel ladle, electrodes and water gaps, and the centers of the cross sections of the electrodesare evenly distributed on the circumference with the center of the cross section of the steel ladle as the circle center; the ventilation core body comprises the ventilation core A and the ventilation core B. The center line of the ventilation core A is the same as the center line of the steel ladle, and the ventilation core B is arranged at the 1 / 2 position of the distance between the center line of the steel ladle and the inner wall of the steel ladle. Through the implementation of the scheme, the steel ladle flow field is optimized, the problems of molten steel temperature and component uniformity are solved, steel ladle refractory erosion consumption is reduced, the service life of the steel ladle is prolonged, and meanwhile the problem of recarburization of a heating electrode returning to an LF furnace is solved.

Description

technical field [0001] The invention specifically relates to a ladle double air-permeable core. Background technique [0002] The ladle bottom blowing breathable core and the breathable core seat brick together form the ladle bottom blowing breathable brick, which is installed at the bottom of the ladle. The ladle bottom blowing breathable core is the core component to realize the bottom blowing and stirring function of the ladle breathable brick. The tube blows inert gas into the ladle to stir the molten steel to achieve uniform composition and temperature of the molten steel and the function of promoting the floating of non-metallic inclusions. [0003] In order to improve the flow field of the ladle, the air vent core of the ladle is currently arranged in the center of the ladle, just inside the pole center circle of the electrode. During the use of the ladle, the molten steel contacts the electrode during the LF heating process, resulting in carbon increase, resulting in...

AI Technical Summary

Problems solved by technology

[0003] In order to improve the flow field of the ladle, the ventilating core of the ladle is currently arranged in the center of the ladle, which is just inside the pole center circle of the electrode. During the use of the ladle, the molten steel contacts the electrode during the heating process of the LF, resulting in carbon increase and causing the carbon content of stainless steel to exceed the standard.

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