Chlorate decomposing device in ionic membrane process caustic soda production

By installing a stirring device and electromagnetic heating in the decomposition tank, combined with liquid pressure control sealing, the problems of uneven mixing of chlorate and automatic drainage are solved, achieving efficient chlorate decomposition and improving the decomposition rate and processing efficiency.

CN223788514UActive Publication Date: 2026-01-13HENAN YONGYIN CHEM IND CO LTD
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Patent Information

Application Number
CN202520113853.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2026-01-13
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

In the existing ion-exchange membrane process for caustic soda production, uneven mixing of chlorate in the primary decomposition tank leads to a low decomposition rate, and the solution after preliminary decomposition cannot be automatically discharged into the secondary decomposition tank, resulting in low overall processing efficiency.

Method used

A stirring device is installed in the primary and secondary decomposition tanks, and the stirring device is driven by a drive motor to rotate. Combined with the heating of the electromagnetic heating coil, the opening and closing of the sealing plate is controlled by the liquid pressure to realize the automatic delivery and uniform heating of the solution, thereby enhancing the decomposition effect.

Benefits of technology

This improved the decomposition rate of chlorate and the overall processing efficiency of the decomposition device, ensuring that the mixed solution was heated uniformly in each decomposition tank, thus increasing the decomposition efficiency.

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Abstract

The utility model provides a chlorate decomposing device in caustic soda production by an ionic membrane method. The chlorate decomposing device comprises a first-stage decomposing tank, a second-stage decomposing tank, a hydrochloric acid pipeline, a light salt brine pipeline, a first elbow, a second elbow, a chlorine outlet and a dechlorination pipeline, wherein the hydrochloric acid pipeline, the light salt brine pipeline and the first elbow are communicated with the first-stage decomposing tank, and the second elbow, the chlorine outlet and the dechlorination pipeline are communicated with the second-stage decomposing tank. According to the chlorate decomposing device in caustic soda production through the ionic membrane method, one end of a liquid discharging pipe can be sealed while a sealing disc is pushed through the elastic acting force of a spring, so that a certain amount of chlorate decomposing solution can be pre-stored in a first-stage decomposing tank, and the chlorate and hydrochloric acid are continuously added; the pressure intensity of liquid at the bottom of the inner side of the primary decomposition tank is increased, so that a sealing disc can be pressed to compress a spring under the action of the liquid pressure, and a solution obtained by primarily decomposing chlorate in the primary decomposition tank can be automatically conveyed into the secondary decomposition tank through a liquid discharge pipe to be continuously decomposed; therefore, the overall treatment efficiency of the decomposition device is improved.
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