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Combined type polyester reaction tower

A reaction tower and combined technology, applied in the field of reaction devices, can solve problems such as complex equipment structure and low work efficiency

Active Publication Date: 2010-09-15
OERLIKON BARMAG HUITONG YANGZHOU ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a combined polyester reaction tower, which aims to solve the problems of complex equipment structure and low work efficiency in the prior art

Method used

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  • Combined type polyester reaction tower
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  • Combined type polyester reaction tower

Examples

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Embodiment 1

[0019] Such as Figure 1-5 As shown, it is a combined polyester reaction tower, and its structure mainly includes a closed vertical shell 4. The vertical shell 4 can be a double-layer shell with a jacket, and the inside of the jacket can be heated by a heating medium. The vertical housing 4 is divided into the upper polycondensation section housing and the lower esterification section housing through the partition plate 16 in the vertical housing 4; several flow-blocking distribution plates 3 are horizontally provided in the polycondensation section housing; The upper part of the body is provided with a liquid outlet 2, and the lower part of the polycondensation section housing is provided with a liquid inlet 5; the lower part of the esterification section housing is provided with a main heater 12, and the outlet on the upper part of the main heater 12 is connected to the lower part of the esterification section housing. The lower side of the shell of the esterification sectio...

Embodiment 2

[0022] Such as Image 6 , the difference with embodiment 1 is that: the polycondensation section shell top is provided with ethylene glycol vapor phase outlet 22, and the baffle plate top is provided with conical umbrella cap 23, and the baffle plate 1 of umbrella cap 23 lower sides is provided with several Strip hole 21.

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Abstract

The invention relates to a combined type polyester reaction tower in the field of polyester production equipment. The combined type polyester reaction tower comprises a closed vertical shell. The vertical shell is divided into a polycondensation section shell at the upper part and an esterification section shell at the lower part by a diaphragm; a plurality of choked flow distribution plates are arranged in the polycondensation section shell; a liquid outlet is arranged at the upper part of the polycondensation section shell, and a liquid inlet is arranged at the lower part of the polycondensation section shell; a main heater is arranged below the esterification section shell, the outlet of the main heater is connected with the lower part of the esterification section shell, a reflux hole is arranged at the lower side of the esterification section shell, a gas phase outlet is arranged at the upper side of the esterification section shell, and the inlet arranged at the lower part of the main heater and the reflux hole are connected with an inlet of reaction materials; and a liquid inlet at the bottom of the polycondensation section shell is connected with the outlet of an auxiliary heater, the inlet of the auxiliary heater is connected with a dynamic glycol inlet through one way of a three-way pipeline, and another way is connected with the reflux hole through a liquid level control valve. The invention can enable reaction to be more complete and can be used for production of polyester including PET, PEN, PBT and PTT.

Description

technical field [0001] The invention relates to a production equipment in the polyester industry, in particular to a reaction device used in esterification reaction and polycondensation reaction. Background technique [0002] In the prior art, the esterification reaction and polycondensation reaction during polyester production are generally carried out in separate reaction towers or reactors, such as an esterification reactor in the prior art, whose publication number is CN101618304A, and its structure mainly includes There are multiple trays, and each tray is equipped with a downcomer and a riser, and the riser is connected to a rotatable gas distributor. The gas distributor is composed of an induction pipe, a fan and a nozzle. Each tray has A certain level of liquid is retained with a solid catalyst in the liquid. The liquid phase is the component containing carboxylic acid, which flows down from one esterification tray to the next tray in the reactor, and countercurrent...

Claims

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Application Information

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IPC IPC(8): C08G63/78
Inventor 景辽宁
Owner OERLIKON BARMAG HUITONG YANGZHOU ENG CO LTD
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