A kind of sponge titanium reduction distillation reaction device and production process

Abstract

The invention relates to a process for producing sponge titanium by using a sponge titanium reduction distillation reaction device. The reaction device used in the process is composed of a tank body and a large cover connected by a flange rubber pad and a bolt group. The process of using the above-mentioned device to produce titanium sponge is to use the previous round as a condenser and install a blind plate on the central tube of the large cover, or directly assemble the empty reaction device that has been pre-pumped and qualified. After being hoisted into the heating furnace, it is used as a reactor; vacuumize the magnesium chloride exhaust tube for two hours, then fill with argon and heat, and after the temperature reaches 700°C, remove the blind plate on the central tube of the large cover under the condition of argon filling , from which liquid magnesium is added at one time; during the reduction process, feed pipes are installed at the three positions of feeding casing 1, feeding casing 2 and central pipe, and three-point parallel feeding is carried out. The invention can not only change the structure of the titanium sponge and solve the compact problem, but also greatly increase the overall feeding speed, make the distillation easier and shorten the cycle.

Description

technical field [0001] The invention belongs to the field of sponge titanium production, and in particular relates to a sponge titanium reduction distillation reaction device and a production process. Background technique [0002] After 60 years of development, the production process of titanium sponge has gradually become unified: the Krall method (magnesium method) and reduction-distillation joint production, and the equipment and production capacity are developing towards large-scale. [0003] The reduction distillation process of sponge titanium is an important link in the production of sponge titanium from titanium tetrachloride, and is the key to the quality and cost control of sponge titanium. In the reaction device, magnesium is added at one time, and then titanium tetrachloride is added continuously during the reduction process, and the liquid magnesium and the vaporized titanium tetrachloride react on the surface of liquid magnesium to generate liquid magnesium chl...

AI Technical Summary

Problems solved by technology

At present, the country chooses simple equipment and large-scale production capacity, that is, increasing the diameter and height of the reaction device to reduce the power consumption per unit of product; and this large-scale equipment will make the heat dissipation conditions of the product worse, the height of the titanium lump will increase, and the single-furnace product If the furnace takes too long, the center and bottom of the titanium lump will be dense and the machinability will be deteriorated.

Images