Sponge titanium reduction distillation system with linear-shaped passage

Abstract

The invention provides a sponge titanium reduction distillation system with a linear-shaped passage. The sponge titanium reduction distillation system comprises a heating furnace, a hot end reactor, afirst large cover, a cold end protection sleeve, a cold end reactor, a second large cover, a heat dissipation system, a cooling system, a first sieve plate, a first magnesium chloride discharging pipe, a first heat preservation layer, a first charging pipe, a second sieve plate, a second magnesium chloride discharging pipe, a second heat preservation layer, a second charging pipe, the linear-shaped passage and a third heat preservation layer; a first valve seat is arranged between double flanges of the hot end reactor, a second valve seat is arranged between double flanges of the cold end reactor, and a high temperature valve is mounted in the second valve seat; and the high temperature valve comprises a threaded casing, a screw rod, a sealing valve plate, a shaft rod and a fourth heat preservation layer. The large cover is greatly simplified, the heat preservation measure of the large cover can be conveniently enhanced, heat dissipation can be significantly lowered, the length of thepassage is greatly decreased, thus the heat dissipation area of the passage is shortened, the passing time of magnesium steam and magnesium chloride steam is short, the temperature drop is low, the heating power of the passage can be significantly lowered, and even only heat preservation is needed without heating.

Description

technical field [0001] The invention belongs to the technical field of titanium sponge production, and in particular relates to a titanium sponge reduction distillation system with an inline aisle, energy saving and no reactor consumption. 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 mag...

AI Technical Summary

Problems solved by technology

[0005] The existing inverted U-shaped parallel furnace installs an inverted U-shaped distillation passage from the furnace cover (such as figure 1 shown), the length of the channel is 3800-4000mm, and heating is required to maintain the temperature of the channel. The type aisle is also equipped with an internal heater, which makes the structure of the large cover more complicated; obviously the two reactors are very close, and the distance between the walls is only 1 meter, but it is necessary to make an aisle of more than 4 meters and complicated The large cover not only increases the equipment investment, but also increases the power consumption and cost; in addition, in the existing inverted U-shaped distillation channel, after the magnesium vapor condenses and blocks in the channel during the temperature rise process of the cold end reactor, it is very difficult to clean the blockage. Inconvenient, which increases labor intensity

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