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Horizontal polyester solid phase polycondensation reaction device

A solid-phase polycondensation and reaction device technology, which is applied in the field of horizontal polyester solid-phase polycondensation reaction devices, can solve the problems of poor uniformity of reaction temperature, inconvenient manufacturing and installation, and high height, and achieve low equipment height, improved uniformity, and heat transfer. The effect of high mass transfer coefficient

Active Publication Date: 2007-07-11
SINOPEC YIZHENG CHEM FIBER
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of poor reaction temperature uniformity, high height, large investment, and inconvenient manufacture and installation in existing tower-type solid-phase polycondensation reactors, and to invent a method that can greatly reduce the height of the reactor and significantly improve the uniformity of reaction temperature. Unique horizontal polyester solid-state polycondensation reaction device

Method used

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  • Horizontal polyester solid phase polycondensation reaction device

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Embodiment Construction

[0017] The following structural drawings and embodiments further illustrate the present invention.

[0018] As shown in Figure 1.

[0019] A kind of horizontal polyester solid-phase polycondensation reaction device, it comprises the tank body 8 of a horizontal arrangement, the top of this tank body 8 is provided with feed port 1, and its bottom is provided with discharge port 3; 8 is equipped with several layers of fluidized bed boards 3 arranged in an inclined shape, and each layer of fluidized bed boards 3 is provided with a ventilation slant hole 5, and the inclination angle of the ventilation slant hole 5 is between 0-90 degrees. Optionally, the shape of the hole can be one of square, rectangular, semi-circular or semi-elliptical or a combination thereof (the structure of the ventilation inclined hole 5 is shown in Figure 2). The inclination angles of the adjacent fluidized bed decks 3 are opposite, that is, the first layer is inclined to the right, the second layer is in...

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Abstract

The invention discloses a horizontal polyester solid-phase polycondensation reaction device, which comprises the following parts: horizontal tank (8), several fluid bed boards (3), several fluid chambers (9) separated by baffle (4), fluid bed row (10) between adjacent fluid chambers (9), nitrogen chamber (11) on the bottom of each fluid bed row (10) with nitrogen exhaust chamber on the top (12), wherein the feed hole (1) is set on the tank (8); the fluid bed board (3) is set in the tank (8), which displays inclined shape.

Description

technical field [0001] The invention relates to chemical equipment, in particular to a solid-phase polycondensation reactor for changing the molecular weight of polyester, in particular to a horizontal polyester solid-phase polycondensation reaction device. Background technique [0002] At present, high-viscosity polyesters are widely used in polyester bottles, industrial yarns, sheets and other fields, while ordinary polyesters with small molecular structures must be catalyzed to increase their molecular weight before they can be applied in the above-mentioned industrial fields, and solid-state polycondensation is The main production method to increase the molecular weight of polyester. At present, the solid-state polycondensation process adopts a tower-type moving bed reactor structure. Polyester solid particles enter from the upper part and slowly move downward, while inert gas nitrogen enters from the bottom and moves upward in countercurrent. The solid-phase polyconden...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/80
Inventor 沈希军张军
Owner SINOPEC YIZHENG CHEM FIBER
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