Apparatus for preparing high-porosity titanium sponge

Abstract

The invention relates to an apparatus for preparing high-porosity titanium sponge. The apparatus comprises a titanium tetrachloride inlet (1), a first stop valve (2), a charging buffer tank (3), a second stop valve (4), an argon-filled tube (5), a first pipeline (6), a discharging buffer tank pressure gauge (7), an outlet buffer tank (8), a pump body of a pressure pump (9), a second pipeline (10), a third stop valve (11), a filling tube (12) and a nozzle (13). Charging by the apparatus can achieve a sufficient atomization with a maximum of 100%; can avoid concentrative reaction of TiCl4 in the centre completely; shortens heat dissipation distance; accelerates the gas convection in the reactor, which is more beneficial to the dissipation of reaction waste heat; and achieves the advantages of low cost and simple operation.

Description

technical field [0001] The invention relates to a technology in the field of nonferrous metal smelting equipment, in particular to a device for preparing titanium sponge with high porosity. Background technique [0002] Sponge titanium is the primary raw material in titanium alloy smelting. At present, the main method for industrial production of sponge titanium is the Kroll method. This method is to first use Mg and TiCl 4 The reduction reaction of Ti produces Ti, and then the excess Mg and the reaction product MgCl are removed by vacuum distillation 2 And a small amount of titanium chloride, and finally get a spongy titanium lump. [0003] The large-scale 10-ton reduction distillation furnace is the main furnace type for the production of titanium sponge by the Kroll method. However, the titanium sponge produced by this furnace has the problems of local overheating in the center, low sponging rate, and dense and difficult-to-break titanium blocks. And changing the feedin...

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Problems solved by technology

[0004] (1) At a certain material rate, due to the short heat transfer time, TiCl cannot be provided 4 The heat required for complete gasification, so the degree of gasification is low;

[0005] (2) The feeding device is partially inserted into the Mg melt, and the liquid level rises during the feeding process, and the feeding pipe hole is easily blocked by the generated titanium block;

[0006] (3) The feeding device is close to the center of the reaction zone, and the end of the feeding pipe will melt, which not only causes the Fe content to exceed the standard, but also loses the gasification effect

However, in the actual use of this patent, the titanium tetrachloride cannot be completely dispersed only by using the swirl nozzle, and due to the resistance of the nozzle and the pipeline, the upper limit of the material velocity is greatly restricted

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