Reaction tank

Abstract

The invention relates to a fixed reactor with an internal moving element, and in particular relates to a reaction tank. The reaction tank comprises a tank body, a motor, stirring blades and a baffle plate, wherein the upper end of the baffle plate is connected with the top of the tank body, to form a settling chamber with open lower end, one side of the top of the tank body is provided with a saline water inlet communicated with the settling chamber, the other side of the top of the tank body is provided with a refining agent inlet communicated with the settling chamber, a saline water outlet positioned outside the settling chamber is further arranged the upper part of the tank body, the motor is mounted at the top of the tank body, the stirring blades extend into the tank body, the output end of the motor is connected with the stirring blades by virtue of a rotating shaft, the bottom of the tank body is funnel-shaped, a mud pipe is arranged at the bottom of the tank body, a mud valve is arranged on the mud pipe, a plurality of branch distributing pipes are arranged at the bottom of the tank body, and connected to one distributing pipe, one end of the distributing pipe is connected with an external hot water source, and the other end of the distributing pipe is connected with an air compressor. The reaction tank can fully utilize crude salt, and matters deposited at the bottom of the tank body can be conveniently cleaned.

Description

technical field [0001] The invention relates to a stationary reactor with internal moving elements, in particular to a reaction tank. Background technique [0002] Caustic soda is currently dominated by ionic membrane technology. According to the sequence of the process, it is divided into primary brine, secondary brine refining, electrolysis, light brine dechlorination, Cl 2 Handling, H 2 processing etc. [0003] The salt melting section is the first process of producing ionic membrane caustic soda. The main principle is: mix the solid raw salt (or part of the salt brine) with the recovered brine sent from the evaporation section, and the light brine recovered from the salt mud washing. Heat to dissolve into a saturated aqueous solution containing sodium chloride, and at the same time add an appropriate amount of refined preparations (sodium hydroxide, sodium carbonate, barium chloride, etc.) Generate an insoluble precipitate, and then add a sedimentation aid (sodium po...

AI Technical Summary

Problems solved by technology

However, due to the small particles of well mine salt and the high flow rate of brine, a part of well mine salt rushes into the reaction tank before it dissolves, and settles in the reaction tank, wasting raw salt resources

In addition, after a period of use, the salt mud in the reaction tank will settle too much, which will easily cause the agitator to fail to rotate, which will affect the reaction in the reaction tank. When cleaning the existing reaction tank, cleaning personnel need to go to the reaction tank to clean up. complex

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