Hot well defoaming device of polyester device

Abstract

The invention discloses a hot well defoaming device of a polyester device, and relates to the technical field of defoaming devices, in particular to a hot well defoaming device of a polyester device.The hot well defoaming device comprises a reaction kettle and a defoaming box, a mounting frame is fixedly connected on the reaction kettle, and a stirring motor is fixedly connected to the lower surface of the mounting frame; the output end of the stirring motor is rotationally connected with a stirring rotating shaft, one end of the stirring rotating shaft is fixedly connected with a stirring rotating rod, and the lower end of the stirring rotating rod is fixedly connected with a stirring cross rod. According to the hot well defoaming device of the polyester device, through the arrangement of the defoaming motor, the hot well defoaming device of the polyester device has a defoaming effect, and through the cooperative arrangement of the collecting plate, the draught fan, the defoaming motor, the first filter screen, the crushing cross rod, the heating wire, the heat conduction layer and the second filter screen, foam can be sucked to the defoaming box in the use process, and multiplecrushing is carried out through extrusion, impact and heating so that a better defoaming effect is achieved.

Description

technical field [0001] The invention relates to the technical field of defoaming devices, in particular to a hot well defoaming device for a polyester device. Background technique [0002] Polyester is a general term for a large class of high polymers that are polycondensed from diols or polyols and dibasic acids or polybasic acids, and contain ester bonds in the main chain of the macromolecule. [0003] In general, there are three methods for industrially producing polyester: transesterification, direct esterification, and oxyacetylene. Regardless of the above-mentioned production method, the raw materials (alcohol and acid) required for the reaction and the catalyst are added to the reactor, and then the heat transfer oil is heated to the temperature required for the reaction by burning coal, gas or electric heating rods. Generally, the temperature is 220°C to 265°C. The heated heat transfer oil is circulated to the interlayer of the reactor, and then the heat is transfer...

AI Technical Summary

Problems solved by technology

The generation and rupture of bubbles inside the liquid can help to increase the contact surface and accelerate the reaction; but when a large number of bubbles are generated on the liquid surface, it will have an adverse effect on production. Due to the existence of foam, the actual use volume of the reactor is reduced , reducing its usage

Since the foam is composed of raw material liquid and gas, the foam will be lost along with the pipeline, resulting in the loss of raw material liquid and the loss of production output

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