Low temperature chlorination furnace slag removal device

Abstract

The invention relates to a low-temperature chlorination furnace slag discharge device. The low-temperature chlorination furnace slag discharge device comprises a downwards inclined blanking pipe, wherein a downstream slag discharge pipe which is arranged vertically downwards is connected with the tail end of the blanking pipe; the tail end of the downstream slag discharge pipe is connected to the top of a deviator with a closed structure; the top of the deviator is further connected with an upstream slag discharge pipe which is arranged vertically upwards; a downwards inclined slag discharge pipe is connected with the tail end of the upstream slag discharge pipe; two groups of gas inlet pipes which are arranged vertically are connected with the bottom of the deviator; air outlets of the two groups of gas inlet pipes are matched with a lower end orifice of the downstream slag discharge pipe and a lower end orifice of the upstream slag discharge pipe respectively. During implementing, fluidizing gas enters the deviator through the gas inlet pipes, and chlorination slag is enabled to be in a fluidized state and then is discharged. The downstream slag discharge pipe, the deviator and the upstream slag discharge pipe form a U-shaped structure, material seal can be formed effectively, and continuous and stable operation of a fluidizing chlorination furnace is facilitated.

Description

technical field [0001] The invention relates to a slagging device for a low-temperature chlorination furnace, which belongs to the technical field of producing titanium tetrachloride by boiling chlorination of titanium-containing raw materials. Background technique [0002] The technology of boiling chlorination to produce titanium tetrachloride generally uses titanium-containing raw materials and chlorine gas to carry out chlorination reaction in a chlorination furnace to obtain titanium tetrachloride, an important raw material for sponge titanium and titanium dioxide. In the prior art, the chlorination furnace usually discharges the slag directly through the feeding pipe. During the slag discharge process, the titanium tetrachloride gas and chlorine gas in the tailings will have an impact on the environment, equipment and personnel, and the slag discharge process must be temporarily closed. Stopping chlorine gas leads to discontinuous process and poor controllability of sl...

AI Technical Summary

Problems solved by technology

In the prior art, the chlorination furnace usually discharges the slag directly through the feeding pipe. During the slag discharge process, the titanium tetrachloride gas and chlorine gas in the tailings will have an impact on the environment, equipment and personnel, and the slag discharge process must be temporarily closed. Stop chlorine gas, resulting in discontinuous process and poor controllability of slag discharge, which reduces production efficiency, especially after the production capacity increases, the amount of chlorinated residues increases, and it is urgent to continue the slag discharge process

In addition, the airtightness of the slag discharge pipe is poor, and the moisture in the air enters the slag discharge pipe and hydrolyzes with titanium tetrachloride to cause blockage, which leads to interruption of slag discharge and even affects the smooth operation of the fluidized chlorination furnace

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