Gasifying chamber spray gun for granular magnesium desulfurization

Abstract

The invention discloses a spraygun of a gasification chamber for desulfurizing granular magnesium. The spraygun comprises a metal gun core the lower end of which is provided with the gasification chamber; the outer circumferential surface and the underside of the gastification chamber are covered with a refractory working liner respectively; the inner surface of the sidewall of the gasification chamber is an outer convex arched surface; the lower end of the gasification chamber is provided with hemline skirt; a plurality of zigzag protrusions with downward tooth tips are arranged on the inner surface of the hemline skirt along the circumferential direction or a plurality of metal short columns are welded on the inner surface of the hemline skirt; and the inside of the refractory working liner is distributed with a plurality of solid riveting pieces. The structure of the gasification chamber avoids the promoting action of the prior conical top corner to slag adhesion, reduces the slag adhering speed and the slag cleaning frequency and delays the deforming speed of a metal member of the gasification chamber; and the irregular hemline skirt can absorb the whole deformation of the hemline of the sidewall of the gasification chamber, strength the comprehensive strength and non-deformability of the wall of the gasification chamber and finally achieve the aims of prolonging the service life of the spraygun, reducing the manufacturing cost for the spraygun and improving the use performance of the spraygun.

Description

technical field [0001] The invention relates to a spray gun with a gasification chamber for granular magnesium desulfurization, in particular to a spray gun with a gasification chamber at the head for pure spraying of molten iron for granular magnesium desulfurization. Background technique [0002] The affinity between metal magnesium and sulfur is extremely high. The desulfurization reaction of molten iron is mainly a homogeneous reaction in molten iron. It is one of the strongest desulfurizers for desulfurization of molten iron. advantage. Because the existence of slag does not affect the homogeneous desulfurization reaction of magnesium, it is not sensitive to blast furnace slag in molten iron; because the amount of magnesium used for desulfurization is small, the investment in desulfurization treatment equipment is low, and the desulfurization process has basically no effect on the chemical composition of molten iron. . [0003] In order to make full use of the advanta...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problem that the slag sticks to the inner wall of the spray gun gasification chamber wall of the gasification chamber for desulfurization of granular magnesium is relatively fast, and the working lining of the refractory gun skirt is seriously damaged.

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