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Molten iron desulphurization gun

A technology of hot metal desulfurization and desulfurization gun, which is applied in the field of hot metal desulfurization gun, can solve the problem of ineffective desulfurization time and achieve the effect of improving desulfurization reaction efficiency, improving hot metal desulfurization, and increasing interaction

Inactive Publication Date: 2017-12-12
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the rotation of the desulfurization gun can effectively prolong the action area of ​​the desulfurizer in the molten iron and improve the desulfurization efficiency of the desulfurizer, but it has little effect on increasing the desulfurization time of the desulfurizer in the molten iron pool

Method used

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  • Molten iron desulphurization gun
  • Molten iron desulphurization gun
  • Molten iron desulphurization gun

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] Such as figure 1 , figure 2 As shown, the present invention includes a desulfurization gun body 1, a spray gun gas outlet 2 is provided on the bottom side of the desulfurization gun body 1, and a paddle 3 is fixedly installed on the side wall of the desulfurization gun body 1, and the paddle 3 is arranged above the spray gun gas outlet 2.

[0016] In order to improve the service life of the paddle 3, the paddle 3 is a steel structure, and the outer surface is provided with a refractory coating.

[0017] In order to increase the interaction between the desulfurizer and molten iron, the paddle 3 is installed as follows: the axis of the paddle 3 is set perpendicular to the axis of the desulfurization gun body 1; The inclination angle between them is 30°~60°, and the inclination angle is preferably 45°. During implementation, it is necessary to p...

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Abstract

The invention relates to a molten iron desulphurization gun, and belongs to the field of desulphurization pretreatment. The molten iron desulphurization gun comprises a desulfurization gun body, a spray gun gas outlet is formed in the side surface of the bottom of the desulfurization gun body, the side wall of the desulfurization gun body is fixedly provided with a paddle, and the paddle is arranged above the spray gun gas outlet. According to the molten iron desulphurization gun, on the basis of a rotary spraying blowingdesulphurization technology, on the basis of rotary spraying blowing, the paddle is installed on the desulfurization gun, the interaction between a desulfurizing agent andmolten iron is increased through stirring of the paddle, the traveling route of the desulfurizing agent floating is increased by realizing vertical movement of the molten iron, the standing time of the desulfurizing agent in the molten iron is prolonged, the desulfurization reaction efficiency of the desulfurizing agent is improved, and the effect of improving desulphurization of the molten iron is achieved.

Description

technical field [0001] The invention relates to a molten iron desulfurization gun, which belongs to the field of desulfurization pretreatment. Background technique [0002] With the development of science and technology, the requirements for steel properties are becoming increasingly strict, and the requirements for steel quality are constantly improving. Further reducing the content of inclusions in steel and improving the cleanliness of steel are the development directions of this century. Steel purification technology is the basis for producing high-performance and high-quality products, and represents the technical equipment level of iron and steel metallurgical enterprises. [0003] Sulfur can significantly reduce the properties of the steel plate in the non-rolling direction. The sulfur content of steel plates used for important purposes such as high-rise buildings, heavy-duty bridges, and marine facilities is currently controlled below 0.008%, and it is expected to b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/00C21C7/064
CPCC21C7/0037C21C7/064
Inventor 梁新腾戈文荪陈均曾建华
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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