A method of spraying anti-sticking agent for vinyl chloride polymerization kettle

Abstract

The invention relates to a method for spraying an antisticking agent of a vinyl chloride polymerization kettle, which comprises the following steps: before spraying the antisticking agent of the vinyl chloride polymerization kettle, starting a high-pressure spray system to clean the residues on the wall of the polymerization kettle; after finishing spraying, starting a heating/cooling system to heat the polymerization kettle, starting a steam jet system and an antisticking agent charging system to spray the antisticking agent into the kettle; and after finishing spraying, switching hot water of the jacket into cooling water to cool the polymerization kettle, and finally, discharging the kettle spraying residue solution to a wastewater treatment system. According to the method, the hot water is adopted to heat the jacket so as to evaporate water in the antisticking agent sprayed on the inner wall of the reaction kettle, and the antisticking agent is cured and forms a film on the inner wall of the reaction kettle, thereby preventing the condensed antisticking agent from flowing down along the kettle wall to form wastewater and avoiding the problem of difficulty in film formation.

Description

technical field [0001] The invention relates to the technical field of anti-sticking kettle treatment of industrial polymerization reactors, in particular to a spraying technology of anti-sticking kettle agent for vinyl chloride polymerization kettles. Background technique [0002] The vinyl chloride polymerization reactor carries out the polymerization reaction under high temperature and high pressure, and the monomers participating in the reaction directly contact the reactor, and the polymerization reaction may occur on the inner wall of the reactor. Therefore, the user requires that the inner surface of the reactor be polished by physical polishing when making the reactor. The roughness is processed to the minimum. Since the inner surface of the reactor is difficult to achieve absolute smoothness, it is inevitable that polymers will be formed on the inner surface of the reactor and adhere to it. Long-term accumulation will form a thick layer of polymer on the inner surfac...

AI Technical Summary

Problems solved by technology

[0004] The invention solves the problems of difficult adhesion and serious waste of the anti-sticking agent in the current spraying process of the anti-sticking agent for the vinyl chloride polymerization kettle, and can effectively improve the efficiency of the anti-sticking agent by using the method of spraying the anti-sticking agent for the vinyl chloride polymerization kettle. Spraying efficiency, reducing the waste of anti-sticking agent and the number of cleaning of the polymerization kettle, improving production efficiency

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