A high-temperature dredging device for sponge titanium distillation

Abstract

The invention discloses a high-temperature dredging device used for sponge titanium distillation. The high-temperature dredging device comprises an air cylinder, a connecting supporting base, an air cylinder supporting base and a sealing valve seat which are sequentially connected, wherein the two ends of the air cylinder supporting base are separately equipped with an upper sealing structure and a lower sealing structure, so that a sealed cavity is formed in the air cylinder supporting base; the connecting supporting base is provided with a buffer cavity with a gas hole; a piston rod of the air cylinder passes through the buffer cavity of the connecting supporting base and then is connected with a dredging valve rod in the sealed cavity of the air cylinder supporting base, and a connected point is always positioned in the sealed cavity in a movement process of the dredging valve rod; the sealing valve seat is equipped with a cooling cavity for accessing a cooling medium which is used for cooling the lower sealing structure; and the dredging valve rod gets out from the sealing valve seat, and is equipped with a valve head which is used for dredging blockage and is provided with a tooth-shaped structure. The high-temperature dredging device can be used for automatically dredging a cold-end vertical tube without manually opening a choke plug of the cold-end vertical tube to check dredge, so that distillation time is shortened, electric consumption is reduced, argon gas consumption is reduced, and sponge titanium production cost is reduced.

Description

technical field [0001] The invention belongs to the field of titanium sponge production, in particular to a high-temperature dredging device for the distillation stage of an inverted U-shaped reduction-distillation furnace. Background technique [0002] Magnesium reduction of titanium tetrachloride to produce sponge titanium is mainly divided into two stages: reduction and distillation. The inverted U-shaped reduction-distillation furnace enters the distillation stage after reduction. Before starting distillation, the cold-end reactor and the hot-end reactor need to be docked. , When docking, it is necessary to install a high-temperature valve on the vertical pipe of the hot-end large cover, and install a sealing plug on the vertical pipe of the cold-end large cover. The total duration of the distillation stage is about 100 hours. During the distillation stage, the magnesium and magnesium chloride remaining in the hot-end reactor pass through the hot-end large-capped horizon...

AI Technical Summary

Problems solved by technology

As the distillation time increases, the condensate in this part will accumulate more and more. If no measures are taken, it will eventually lead to the blockage of the cold end vertical pipe, which will cause the interruption of distillation

At this stage, the industry still cannot effectively judge the degree of distillation plugging

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