Reduction distillation reaction device for sponge titanium production

Abstract

The invention discloses a reduction distillation reaction device for sponge titanium production. The reduction distillation reaction device mainly consists of a reactor, a conical tower frame, a magnesium chloride pipe and a sieving plate. The magnesium chloride pipe is arranged on one side in the reactor. The sieving plate is arranged at the bottom of the reactor. The conical tower frame is welded to the sieving plate. The sieving plate is composed of a supporting panel and a supporting frame which is in the shape like a Chinese character 'jing' and connected with the lower portion of the supporting panel. A plurality of holes are formed in the supporting panel. The supporting frame which is in the shape like a Chinese character 'jing' is composed of a plurality of vertical plates in a crossed and staggered mode. A through hole is formed in each vertical plate. The lower part of the supporting frame which is in the shape like a Chinese character 'jing' is in a nearly hemispherical shape. By means of the reduction distillation reaction device, distillation channels can be formed in the interior of a sponge titanium heap and the bottom of the reactor, the distillation efficiency isimproved, the distillation time of sponge titanium is decreased, the sponge titanium production cycle is shortened, and energy consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of titanium sponge production, in particular to a reaction device for reduction distillation in the production of titanium sponge by a magnesium reduction method. Background technique [0002] At present, domestic and foreign industrial production of sponge titanium mostly adopts the method of reducing titanium tetrachloride with metal magnesium, that is, in the reduction distillation process, first set a sieve plate at the bottom of the reaction device, and use metal magnesium to reduce titanium tetrachloride to obtain sponge titanium and magnesium chloride. Discharge, the sponge titanium gradually accumulates on the sieve plate to form a titanium lump, and after the reduction is completed, the magnesium chloride and other impurities in the titanium lump are removed by distillation to obtain pure sponge titanium. In order to reduce production costs, all countries regard large-scale equipment as the directio...

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Problems solved by technology

In order to reduce production costs, all countries regard large-scale equipment as the direction of technological development. However, with the increase of the furnace type, the bottom of the sponge titanium-titanium lump structure is dense, and there is a sandwich hard block in the center. In order to ensure that the sponge titanium-titanium lump has no sandwich magnesium chloride , generally increase the distillation high constant temperature time, but this will easily lead to the structure of the titanium sponge becoming denser due to its own weight and high temperature during the distillation process, which seriously affects the quality of the titanium sponge

[0003] Due to the large-scale furnace type, the sponge titanium lump itself is heavy, and the bottom product of the sponge titanium lump is still relatively compact under the pressure of the middle and upper products. Therefore, the applicant has developed a sponge titanium reduction in the prior art. The reaction device for distillation (patent applied for, application number 201710329279.1) is designed with a conical tower device to support the titanium sponge. Although this technology can solve the problem of compact product structure, there are still problems such as long distillation time and high energy consumption.

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