Metering device for feeding of titanium tetrachloride

Abstract

The invention discloses a metering device for feeding of titanium tetrachloride. The metering device for feeding of titanium tetrachloride comprises a metering pump, a piston, a first solenoid valve, a second solenoid valve, a third solenoid valve, a fourth solenoid valve and a controller, wherein the metering pump is internally provided with a piston cavity; the metering pump is provided with a left opening and a right opening which communicate with the piston cavity; the piston is arranged in the piston cavity in a left-and-right moving mode; an outlet of the first solenoid valve communicates with the left opening; an inlet of the second solenoid valve communicates with the right opening; an outlet of the third solenoid valve communicates with the right opening; an inlet of the fourth solenoid valve communicates with the left opening; the controller is connected with the piston so as to record the frequency of movement of the piston; the controller is connected with the first solenoid valve, the second solenoid valve, the third solenoid valve and the fourth solenoid valve so as to control opening and closing of the first solenoid valve, the second solenoid valve, the third solenoid valve and the fourth solenoid valve. The metering device can accurately control the flow of titanium tetrachloride.

Description

technical field [0001] The invention relates to a metering device for feeding titanium tetrachloride. Background technique [0002] The process of producing sponge titanium is to add magnesium and titanium tetrachloride to the reactor for reduction reaction, which is a violent reaction. The production process of sponge titanium is to put a certain amount of magnesium into the container first, melt the magnesium in the container by heating, and then add titanium tetrachloride into the container to react to produce sponge titanium, and the titanium tetrachloride added to the container is in the form of gas exist. Since the magnesium in the container has occupied a certain container space, adding titanium tetrachloride in the limited container space needs to take into account the changes in pressure and temperature. Therefore, in order to stabilize and improve the output and quality of titanium sponge, it is required to precisely control the flow rate of adding titanium tetra...

AI Technical Summary

Problems solved by technology

[0003] At present, the production of sponge titanium mainly uses the rotameter to feed titanium tetrachloride. The amount of titanium tetrachloride is determined by adjusting the opening of the rotameter. The measurement opening of the rotameter is not easy to accurately control, and there are great errors. The pressure in the reactor changes greatly, it is difficult to control, and many low-priced substances are produced and the quality of titanium sponge is affected, and the cumulative feeding amount of titanium tetrachloride needs to be calculated manually, which is cumbersome and error-prone.

Images