Energy-saving high-efficiency self-cleaning polymerizing device

Abstract

The invention relates to an energy-saving high-efficiency self-cleaning polymerizing device. The energy-saving high-efficiency self-cleaning polymerizing device is composed of a shell-and-tube reactor and a self-cleaning intensified heat transfer device, wherein the self-cleaning intensified heat transfer device mainly comprises rotors, intermediate support frames, backwater end pendants, limiting elements and lifting hook pendants; the intermediate support frames are used for supporting each rotor string so as to intensify the rigidity of rotary shafts and the self-centering effect of the rotors and prolong the service life of the whole device; positioning pin shafts of the lifting hook pendants and positioning holes of the adjacent lifting hook pendants are matched so as to guarantee that the lifting hook pendants at the end parts of a plurality of shells and tubes are of the integrated connecting structure, and the axial stretching intensity of each single lifting hook pendant is intensified; lifting hooks, hollow shafts as well as positioning concave tables of the lifting hook pendants are positioned in the shells and tubes, and the impact to a fluid is reduced, thereby reducing the fluid resistance. The device intensifies the sufficient mixing of reaction materials, and releases heat by the polymerization reaction rapidly, also has a self-cleaning effect, solves the kettle adhesion problem, and improves the product quality and production efficiency, thereby preventing defects of the traditional production mode.

Description

technical field [0001] The invention relates to a production device of a polymerization process, in particular to an energy-saving, high-efficiency, self-cleaning polymerization device. Background technique [0002] There are many products processed and manufactured by polymerization reaction. Taking the production of PVC as an example, there are two main preparation processes for the production of PVC, one is calcium carbide method; the other is ethylene method, and the main raw material is petroleum. The production of PVC in the international market is mainly based on the ethylene method, while in China, limited by the resource endowment of rich coal, poor oil, and little gas, it is mainly based on the calcium carbide method, which accounts for more than 70% of my country's total PVC production capacity. According to practical experience, in the production of calcium carbide (CaC2) to obtain PVC, there will be different degrees of sticking problems. Sticky kettle means th...

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Problems solved by technology

[0004] 1. The adhesion fastness of the anti-adhesive coating is low, it is easy to mix into the product, reduce the purity of the product, and affect the effect of the anti-adhesive agent

[0005] 2. Insufficient anti-oxidation time will cause the anti-sticking agent to fail early, resulting in a decline in product quality

[0006] 3. The problem of color cast, the coating will be eroded and dropped into the kettle during the polymerization reaction, and the dark anti-sticking kettle agent will pollute the resin (such as "American red", "British blue"), and thus pollute the resin and make the resin Reddish or bluish affect the color of the product

[0007] 4. It is difficult to operate when using, and manual spraying is required, and the uniformity and integrity of the spraying cannot be guaranteed

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