Dust collecting device for titanium tetrachloride production

Abstract

The invention discloses a dust collecting device for titanium tetrachloride production. The dust collecting device mainly consists of a charging hole, a discharging hole and a dust collector, wherein the charging hole and the discharging hole are respectively formed in the top of the dust collector, the lower part of the dust collector is a tapered structure, and a flange, a sealing pad and a blind plate are arranged on the bottom of the tapered structure in sequence; and a heating device is arranged outside the tapered structure on the lower part of the dust collector. According to the dust collecting device disclosed by the invention, the bottom of the dust collector is heated, so that a problem that the existing dust collector is poor in separating effect on titanium tetrachloride and the dust collecting residue is solved, the waste of titanium tetrachloride and pollution on environment during the dust collecting and residue exhausting are reduced; meanwhile, the production cost is lowered, and the labor environment of the operation worker is improved.

Description

technical field [0001] The invention belongs to the technical field of titanium tetrachloride production, in particular to a dust collecting device used in the process of producing titanium tetrachloride by boiling chlorination. Background technique [0002] At present, the industrial production of titanium tetrachloride at home and abroad mostly adopts the fluidized chlorination method, that is, the boiling chlorination method, which uses the action of flowing fluid (chlorine gas) to suspend solid particles and make gas-solid or liquid-solid contact and react During this chlorination reaction process, a small part of the particles have no time to react, and enter the dust collector from the chlorination furnace with the titanium tetrachloride airflow. The purpose of the dust collector is to remove the high-temperature furnace gas from the chlorination furnace. Suspended particulate impurities, for which gas-solid separation operation is performed. The separation and settli...

AI Technical Summary

Problems solved by technology

The separation and settling equipment commonly used now mainly includes clapboard dust collectors (also divided into gravity dust collectors and cyclone dust collectors), which rely on the tiny particles coming out of the chlorination furnace to settle by their own gravity, and settle to the collection point. However, since the temperature at the bottom of the dust collector is lower than the boiling point of titanium tetrachloride, part of the titanium tetrachloride gas will condense, and the condensed titanium tetrachloride will settle together with the solid particles to the collector. At the bottom of the dust collector, the titanium tetrachloride liquid is mixed with the dust collection slag to produce "slurry". When discharging the slag, because the "slurry" is paste-like, it is difficult to discharge the slag, which increases the labor intensity of the operators, and the discharged slag Contains a large amount of titanium tetrachloride, which not only causes a great waste of titanium tetrachloride, but also seriously pollutes the environment.

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