Resin production system

Abstract

The invention provides a resin production system, comprising a polymerization reaction kettle, a vertical condenser, a horizontal condenser and a buffer recovery tank, wherein the polymerization reaction kettle is provided with a feeding hole and a gas outlet hole; the gas outlet hole is communicated with a tube pass entrance of the vertical condenser, a tube pass exit of the vertical condenser iscommunicated with a tube pass entrance of the horizontal condenser, a tube pass exit of the horizontal condenser is communicated with an inlet of the buffer recovery tank, and an outlet of the bufferrecovery tank is communicated with the gas outlet hole. The resin production system is provided with the vertical condenser and the horizontal condenser which are cooperatively used, thus guaranteeing the condensation effect of ethyl acetate gas; the buffer recovery tank is arranged, and the whole system is enabled to form a closed loop, so that the system is not limited by the high temperature vaporization of ethyl acetate, the cooling time is shortened, the system power consumption and energy consumption are reduced, the machine abrasion is reduced, and the production cost is further lowered; furthermore, part of the uncondensed ethyl acetate gas is recovered by means of the buffer recovery tank and is not discharged into the atmosphere, so that the pressure for environmental protectionis reduced.

Description

technical field [0001] The invention relates to the technical field of chemical production, in particular to a resin production system. Background technique [0002] The traditional resin production system consists of a polymerization reactor and a vertical water cooler. The semi-finished resin at about 300°C is stirred and cooled in the polymerization reactor. Since the boiling point of the solvent ethyl acetate is only 77°C, it cannot be avoided. Ethyl acetate is vaporized after contacting high-temperature semi-finished resin, and the temperature of the semi-finished resin must drop below 80°C before adding ethyl acetate, and the polyesterification reaction is completed after adding ethyl acetate. The water cooler is used to condense the ethyl acetate gas produced by the polyesterification reaction in the polymerization reactor into a liquid and then send it back to the polymerization reactor. There is only one traditional water cooler, and the condensation effect is not e...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the present invention provides a resin production system, which solves the problems of long cooling time, high energy consumption, machine wear, environmental pollution and poor condensation effect in the traditional resin production system

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