Molten iron desulphurization stirring spray gun

Abstract

The invention belongs to the field of desulphurization apparatus in metallurgy casting industries, and especially relates to a molten iron desulphurization stirring spray gun. The stirring spray gun comprises a flange connecting piece (1), a stirring shaft (2) fixedly connected to the flange connecting piece (1), a stirring blade (3) fixedly connected to the lower part of the stirring shaft (2), a refractory material layer (7) attached to the stirring shaft (2) and the stirring blade (3), and a spray pipe (4) fixedly sleeved in the stirring shaft (2). Semicircular-cylinder-shaped vaporization chambers (5) are arranged on a side wall of the stirring blade (3), wherein the semicircular-cylinder-shaped vaporization chambers (5) are arranged with equal shares. Spray ports (6) are arranged on the semicircular-cylinder-shaped vaporization chambers (5). The inner cavity of the spray pipe (4) communicates with the spray ports (6). The number of the semicircular-cylinder-shaped vaporization chambers (5) is three. The stirring blade (3) is in a shape of a round disc. An annular stress adjusting rib (8) is arranged in the refractory material layer (7). The molten iron desulphurization stirring spray gun provided by the invention is advantaged in simple structure, long service life, low cost, and high desulphurization efficiency.

Description

Technical field [0001] The present invention is the field of desulfurization device in the metallurgical casting industry, especially a kind of iron water desulfurization and mixing spray gun. Background technique [0002] Jet metallurgy usually refers to the fixed -type spraying method widely used in the industry: the spray gun is in a static state when the furnace wall and the top of the furnace and the top of the furnace.When the spray gun is blowing up from the bottom of the furnace, the fixed spraying method is the only way, that is, the spray gun must be fixed in the refueling layer at the bottom of the furnace.When the spray gun is inserted from the furnace wall, it is generally in a static state. [0003] The core of the gun in the spray gun is generally made of ordinary carbon steel materials. In order to ensure the rigidity of the core of the rifle, it is generally arranged around the core of the core of the rifle.The material of the coverage layer is generally steel fi...

AI Technical Summary

Problems solved by technology

In actual production, due to the spalling and cracking of the refractory material of the gun body, the gun body cracks are burned through, broken, bent and other damages, which restricts the improvement of the service life of the spray gun.

[0004]The existing desulfurization spray guns for molten iron pretreatment all adopt cylindrical static spray guns. Such spray guns have high desulfurization agent splashing intensity, poor mixing effect of desulfurization agent and molten iron, and desulfurization Low efficiency and other characteristics

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