Bottom discharge device and discharge method for titanium sponge reactor

Abstract

The invention relates to a bottom discharge device for a titanium sponge reactor. The bottom discharge device for the titanium sponge reactor comprises a discharge valve mechanism and a transmission mechanism. The discharge valve mechanism comprises a flange, an outer casing, an inner discharge pipe and an ejector pin. The flange is disposed at the bottom of the titanium sponge reactor and is provided with a discharge opening. The outer casing is fixed to the lower end of the flange. The inner discharge pipe is disposed in the outer casing and is communicated with a discharge opening. The inner discharge pipe is capable of moving axially along the outer casing. The ejector pin is placed on the discharge opening from the upside of the discharge opening and seals the discharge opening. The lower end of the ejector pin is fixed at one end of the inner discharge pipe. The head of the ejector pin comprises an upper cone and a lower cone which are opposite to each other. The transmission mechanism comprises a cylinder, a telescopic part and a connecting rod. One end of the telescopic part is connected with the cylinder, and the other end of the telescopic part is connected with the other end of the inner discharge pipe through the connecting rod. The inner discharge pipe and the ejector pin are driven to move by the transmission mechanism. The invention further relates to a discharge method for the titanium sponge reactor. The discharge method for the titanium sponge reactor uses the bottom discharge device for discharging.

Description

technical field [0001] The invention relates to a device for producing sponge titanium by a magnesia thermal reduction vacuum distillation method, and more specifically, relates to a bottom discharge device and a discharge method of a sponge titanium reactor. Background technique [0002] When using magnesia thermal reduction vacuum distillation to produce sponge titanium, the refined magnesium and refined titanium tetrachloride are placed in the reactor and reacted at 850°C to form sponge titanium, and then the obtained sponge titanium is heated at a temperature as high as 1000°C Purified titanium sponge was obtained by vacuum distillation. During the reaction, it is necessary to timely and frequently open the magnesium chloride discharge device on the reactor according to the feeding system and reaction progress to discharge the magnesium chloride generated in the reactor, and control the liquid level in the reactor to fluctuate within a certain range. [0003] In industr...

AI Technical Summary

Problems solved by technology

However, the method of lower magnesium chloride discharge is only used in a small amount, and when magnesium chloride is discharged by the lower discharge method, the sealing method of the top cone is adopted for the position of the thimble of the discharge valve, and the sealing position of the top cone is far away from the melt in the reactor. There is a certain distance and the temperature of the top cone is lower than that of the melt part, and the melt is easy to condense and bond in this cone part, so that the discharge valve cannot realize the up and down movement

When the discharge valve cannot perform normal discharge, it will not only affect the smooth operation of the magnesia thermal reduction process, but also affect the quality of sponge titanium due to unsmooth operation and increase production costs

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