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Gasifying chamber spray gun for granular magnesium desulfurization

A gasification chamber and granular magnesium technology, applied in the field of gasification chamber spray guns for granular magnesium desulfurization, can solve the problems of refractory gun skirt working lining damage, fast slag sticking, etc.

Inactive Publication Date: 2009-03-18
武钢集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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.

Method used

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  • Gasifying chamber spray gun for granular magnesium desulfurization
  • Gasifying chamber spray gun for granular magnesium desulfurization
  • Gasifying chamber spray gun for granular magnesium desulfurization

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Such as figure 1 , figure 2As shown, the present invention comprises a metal gun core, and its upper end is provided with connecting flange 16, and spray gun is connected together with gun shaft 17 flanges by connecting bolt 15, and the lower end of metal gun core is provided with gasification chamber 6, and metal gun core The outer peripheral surface and the bottom surface of the steel pipe are covered with a refractory working lining 10, and the refractory working lining 10 is integrally casted with a refractory castable for a desulfurization spray gun with a patent number of ZL03118869.9; the metal gun core includes a main pipe 1, a reinforcing pipe 2 and several The bridging weldment 3, the main pipe 1 and the reinforcement pipe 2 are respectively made of ordinary carbon steel seamless steel pipes, the bridging weldment 3 is made of rebar, the reinforcement pipe 2 is set outside the main pipe 1, and a number of openings 4 are evenly arranged on its outer circumfere...

Embodiment 2

[0025] The difference between the present embodiment and the first embodiment is that several metal short cylinders are uniformly welded along the circumferential direction on the inner surface of the bottom skirt, and the metal short cylinders are rebars with a diameter of 18 mm.

[0026] The gasification chamber spray gun for granular magnesium desulfurization of the present invention has the following advantages:

[0027] 1. A gasification chamber spray gun for granular magnesium desulfurization of the present invention avoids direct contact between the slag washing water and the working lining of the refractory gun skirt, delaying the damage of the refractory gun skirt working lining and the burning of the bottom edge of the side wall of the gasification chamber 6 process.

[0028] 2. The present invention improves the anti-deformation ability of the side wall of the gasification chamber 6 by increasing the thickness of the bottom edge of the side wall of the gasification ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/064
Inventor 欧阳德刚罗安智王清方李具中胡清明秦新会
Owner 武钢集团有限公司
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