A polyamide production system

A production system, polyamide technology, applied in the field of polyamide preparation, can solve problems such as poor flexibility, troublesome cleaning, low screening efficiency, etc., and achieve the effect of improving safety

Inactive Publication Date: 2017-03-15
ANQING HONGTAI NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This granulation method needs to fix a motor position on the granulator, and the flexibility of equipment installation is poor
In the traditional process, the particles granulated by the granulator are directly fed, but at this time the particles have not been cooled and some organic waste gas is still volatilized
In addition, due to the fact that some lighter flocs will be produced during the granulation process, they will be brought into the unloading device after direct feeding, which will cause trouble for subsequent cleaning
Moreover, the granulation and classification discharge process of the traditional process is mostly manually screened, and the screening efficiency is low.

Method used

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Embodiment Construction

[0054] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0055] Such as figure 1 As shown, this embodiment includes a polymerization device, an acidification tank, a plate and frame filter press, a transfer tank, a centrifugal separation device, a thin film evaporator, a molecular distillation device, a pipeline switching filter device, a polycondensation device, and a filtration device from front to back according to the process flow. device and granulation system.

[0056] The acidification kettle, the plate and frame filter press, the thin film evaporator and the molecular distillation device are all existing equipment.

[0057] Such as figure 2As shown, the polymerization device includes a polymerization kettle 101 and a material lifting device 102. The polymerization kettle 101 includes a polymerization kettle body 1011 and a polymerization kettle cover 1012, and a first feed inlet 1013 is opened on the polymerizat...

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PUM

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Abstract

The invention discloses a polyamide production system. According to the technological processes, the polyamide production system comprises a polymerization device, an acidification kettle, a sheet frame pressure filter, a transition kettle, a centrifugal separation device, a film evaporator, a molecular distillation device, a pipeline changing and filtering device, a polycondensation device, a filter device and a prilling system in sequence from former to latter. According to the technological processes, the prilling system comprises a prilling mechanism, a particle conveying mechanism and a prilling, classifying and discharging mechanism in sequence from former to latter. The polyamide production system has the advantages of being high in processing efficiency, good in processing safety and low in product impurity rate.

Description

technical field [0001] The invention relates to the field of polyamide preparation, in particular to a polyamide production system. Background technique [0002] Polyamide resin, referred to as PA, is a polymer with amide bonds in the main chain. It can be obtained by polycondensation of dibasic amine and dibasic acid, and ring-opening polymerization of lactam. A variety of polyamide resins can be obtained due to the different types of dibasic acids and diamines used. According to the relative molecular weight, it can be roughly divided into high molecular polyamide resin and low molecular polyamide resin. [0003] High-molecular polyamide resin, known as nylon or nylon, is composed of straight-chain aliphatic dibasic acid and diamine. It is mainly used to prepare synthetic fibers and engineering plastics. It is a kind of polyamide resin with relatively complete development and research technology. . [0004] Low-molecular-weight polyamide resin is obtained by polyconden...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G69/34C08G69/28
Inventor 王文耕
Owner ANQING HONGTAI NEW MATERIAL
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