Granulated magnesium molten iron desulfurization lance

Abstract

The invention belongs to the field of molten iron desulfurization equipment, and particularly relates to a granulated magnesium molten iron desulfurization lance. The granulated magnesium molten iron desulfurization lance comprises a carrier gas jet pipe (4), a refractory material layer (7), a framework (6) and a central jet pipe (1), wherein the bottom of the central jet pipe (1) is provided with a vaporizing chamber (3); the central jet pipe (1) is sleeved in the carrier gas jet pipe (4); a lower port of the central jet pipe (1) is communicated with the vaporizing chamber (3); the refractory material layer (7) is positioned outside the carrier gas jet pipe (4); the framework (6) is arranged in the refractory material layer (7) and is fixedly connected with the carrier gas jet pipe (4); different segments in the longitudinal direction of the carrier gas jet pipe (4) are fixedly provided with a first carrier gas tail jet pipe (8) and a second carrier gas tail jet pipe (9); and the distance h between the lower ends of the first carrier gas tail jet pipe (8) and the second carrier gas tail jet pipe (9) is 20-45 cm. According to the invention, the desulfurization efficiency is high, bubbles can be uniformly distributed in the whole liquid phase, and the magnesium consumption is low.

Description

technical field [0001] The invention belongs to the field of molten iron desulfurization equipment, in particular to a granular magnesium molten iron desulfurization spray gun. Background technique [0002] The desulfurization injection desulfurization technology outside the molten iron furnace has been widely used since its development in the 1950s. This technology can better adapt to various desulfurization agents, give full play to the desulfurization ability of the desulfurizer, and achieve excellent desulfurization effect. At present, the hot metal magnesium desulfurization spray gun still has problems such as single structure, uneven distribution of bubbles in the liquid phase, low desulfurization efficiency, and large magnesium consumption. Contents of the invention [0003] The present invention aims to overcome the disadvantages of the prior art and provide a granular magnesium molten iron desulfurization spray gun with high desulfurization efficiency, uniform di...

AI Technical Summary

Problems solved by technology

At present, the hot metal magnesium desulfurization spray gun still has problems such as single structure, uneven distribution of bubbles in the liquid phase, low desulfurization efficiency, and large magnesium consumption.

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