Reaction kettle for unsaturated polyester resin equipment

Abstract

The invention discloses a reaction kettle for unsaturated polyester resin equipment, and particularly relates to the field of reaction kettles. The reaction kettle comprises a kettle body, a coil is installed in the side wall of the kettle body, a metal ring is installed on the surface of the inner wall of the kettle body, a plurality of sampling pipes are installed on the surface of the kettle body, a discharging pipe is installed at the bottom end of the kettle body, and a power device is installed on the top face of the kettle body; the output end of the power device is connected with a stirring shaft and stirring blades, the top end of the kettle body is connected with a fractionating column, and the output end of the fractionating column is connected with a heat exchange pipe, a guide pipe, a condenser and a receiver. The eddy current coil and the large-area stirring blades are arranged, the eddy current coil is used for conducting electromagnetic heating on the stirring blades, the heating speed is high, the energy conversion rate is high, and the heated stirring blades make contact with materials in the stirring process so that heat can be evenly transmitted to the materials; the phenomenon that the side wall of the kettle body is burnt due to a traditional heating coil is thoroughly avoided, and heating is uniform and efficient.

Description

technical field [0001] The invention relates to the technical field of reactors, more specifically, the invention relates to a reactor for unsaturated polyester resin equipment. Background technique [0002] In the production of unsaturated polyester resin, the reaction kettle is the key equipment for the synthesis of unsaturated polyester resin. Generally, the reaction kettle is heated by pinch tubes. When the volume of the kettle increases, the ratio of the surface area of ​​the kettle to increase is smaller than that of the volume. Therefore, For unit volume, the effective heating or cooling area becomes smaller, which makes the production cycle prolong and difficult to control. In the prior art, the useful gas produced in the reaction kettle for unsaturated polyester resin is only It can only be recovered in the vacuum stage, so the recovery efficiency is low. [0003] In order to solve the above problems, the patent of patent application publication number CN201770640U...

AI Technical Summary

Problems solved by technology

[0004]However, when the above-mentioned technical solutions are actually used, there are still many shortcomings;

[0005] 1. Since the reaction kettle uses a heating coil to heat the materials in the reaction kettle, the heating coil can only heat the side wall of the kettle body, and the material on the side wall is based on the stirring blade, and its fluidity is poor, which makes it impossible to quickly Realize heat convection, so it is very easy to appear sticky and scorched on the side wall, reducing product quality;

[0006] 2. Because the reaction kettle adopts the method of directly adding inert gas to the inside of the insulation cavity of the kettle body for heat preservation, the inert gas is generally stored through low-temperature liquefaction, and when the inert gas enters, the temperature inside the kettle body is likely to drop rapidly due to its low temperature, resulting in Inefficient body heating

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