Tube alignment type condensation polymerization reaction kettle

Abstract

The invention discloses a tube alignment type condensation polymerization reaction kettle. According to the kettle, tube plates (4) are arranged inside a vertical casing (8); the tube plates (4) are connected with a tube alignment (5); material distributors (6) are arranged on the upper end tube openings of the tube alignment (5); annular gaps (7) are arranged between the upper end tube openings of the tube alignment (5) and the material distributors (6); the top end of the vertical casing (8) is provided with a material inlet (1), and the lower end of the vertical casing (8) is provided witha material outlet (10); the lower part of the side surface of the vertical casing (8) is provided with a heating medium inlet tube (2), the upper part of the side surface of the vertical casing (8) is provided with a heating medium outlet tube (3), and the middle-lower part of the side surface of the vertical casing (8) is provided with a vacuum pumping port (9). According to the present invention, material naturally flows downward by gravity, if the tube alignment is large, the film forming of the inner wall of tube alignment is sufficient, such that the blocking problem can not be generated; the tube alignment type condensation polymerization reaction kettle of the present invention has characteristics of good film forming effect, reliable use, and high work efficiency, and can be used for productions of PET and other high viscosity polymers. In addition, a plurality of the tubes can be aligned in the tube alignment.

Description

technical field [0001] The invention relates to production equipment in the polyester industry, in particular to a tube-and-tube polycondensation reactor. Background technique [0002] In the existing polyester production, as the polycondensation reaction proceeds, the viscosity of the material gradually increases. High-viscosity materials will hinder the rapid escape of reaction by-products and delay the progress of the reaction. It is necessary to make the material form a larger surface area in a vacuum state. The film is heated at the same time, so that the by-products can escape from the material smoothly, and the reaction can go on better. At present, the most commonly used is the horizontal disc type or squirrel cage type rotary reactor, and its structure mainly includes a horizontal cylindrical shell with a vacuum suction port on the upper part of the shell, and a feed port and an outlet on the bottom of the shell. The feed port is equipped with a horizontal multi-di...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides a tube-and-tube polycondensation reactor, aiming to solve the problem that the reaction of high-viscosity materials cannot be carried out in the prior art

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