Vertical type stirred-free polymerization reactor

A polymerization reactor, non-stirring technology, applied in chemical methods, chemical instruments and methods, chemical/physical processes, etc. to make liquids react with liquids, which can solve the problems of slow reaction speed, low production efficiency, small heating area, etc. , to achieve the effect of stable product quality, low power consumption and failure rate, and uniform falling film

Active Publication Date: 2016-05-04
YANGZHOU HUITONG CHEM ENG TECHN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After the PET or PBT melt enters the inner cavity of the cylinder, the heated area is relatively small, an

Method used

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  • Vertical type stirred-free polymerization reactor
  • Vertical type stirred-free polymerization reactor

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Embodiment Construction

[0021] Such as figure 1 and figure 2 As shown, the vertical non-stirring polymerization reactor of the present invention comprises a cylinder 1 which is vertically arranged and closed at both ends, and the upper part of the cylinder cavity is provided with a horizontal liquid distribution plate 2 which partitions the cylinder laterally. 2 is provided with a liquid distribution hole 2a, and a falling film tube 3 is provided in the liquid distribution hole 2a, and the two are coaxial. The liquid distribution hole 2a is funnel-shaped with a large top and a small bottom, which is convenient for sufficient material to flow into the liquid distribution hole 2a. The gap between the small end of the liquid distribution hole 2a and the falling film tube 3 controls the thickness of the falling film. The falling film tube 3 extends vertically downward, and the inner cavity of the falling film tube 3 is inserted with a heat medium heating tube 11. The upper outer wall of the cylinder bo...

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Abstract

The invention relates to a vertical type stirred-free polymerization reactor. A liquid distribution disc is arranged at the upper part of the internal chamber of a tubular body, liquid distribution holes are formed in the liquid distribution disc, falling-film tubes are arranged in the liquid distribution holes, heat-medium heating tubes are inserted into internal cavities of the falling-film tubes, a charging opening and a vacuumizing opening are formed in the external wall of the upper part of the tubular body, a discharging spiral and a discharging opening are formed in the bottom of the tubular body, a tubular body jacket is arranged at the outer periphery of the tubular body, the charging opening is located below the liquid distribution disc, an annular liquid distribution groove is formed in the internal wall, corresponding to the charging opening, of the tubular body, and uniform annular slots are reserved between the lower end of the liquid distribution groove and the internal wall of the tubular body; an annular liquid collecting groove is formed in the internal wall of the lower part of the tubular body, the upper end of the liquid collecting groove is open, and the lower end of the liquid collecting groove is closed; an intermediate melt outlet communicating with the bottom of the liquid collecting groove is formed in the external wall of the tubular body and is connected with an inlet of a conveying pump, an outlet of the conveying pump is connected with an intermediate melt inlet, and the intermediate melt inlet is located in the external wall of the tubular body and is located above the liquid distribution disc. The reactor is high in production efficiency and low in energy consumption.

Description

technical field [0001] The invention relates to a vertical non-stirring polymerization reactor, which belongs to the technical field of polyester production equipment such as PET and PBT. Background technique [0002] The traditional vertical non-stirring polymerization reactor consists of a vertical cylinder with closed ends. The upper part of the inner cavity of the cylinder is equipped with a horizontal liquid distribution plate that partitions the cylinder horizontally. The liquid distribution plate is provided with liquid distribution holes. , the liquid distribution hole is provided with a falling film tube with both ends closed and the gap between the two is uniform. The falling film tube extends vertically downwards and the upper end protrudes from the top of the cylinder. Heat medium heating tube, the upper outer wall of the cylinder is provided with a feed port and a vacuum port, the lower end of the cylinder is provided with a conical head, the lower end of the co...

Claims

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Application Information

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IPC IPC(8): B01J14/00
CPCB01J14/00
Inventor 景辽宁严旭明陈文兴
Owner YANGZHOU HUITONG CHEM ENG TECHN
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