Automatic control polyester optical film crystallization drying system

Abstract

The invention discloses an automatic control type optical polyester film crystallization and drying system. The automatic control type optical polyester film crystallization and drying system comprises an extruder system, a magnetic disk, a fine filter, a second metering pump, a pre-filter, a first metering pump, a dry slice extrusion system, a slice detector, a first electric heater, a butterfly valve, a fan, a regulating valve, an electric control valve, a pneumatic pipeline, a wet slice hopper, a first rotary valve, a second rotary valve, a metering device, a plug plate valve, a pulse crystallization bed, a rotator, a gate plate, a drying tower, a cyclone separator, a dust hopper, a dust separator, a second electric heater, a pressure regulating valve, a pulse nozzle device, an air pretreatment device and an electronic control device. The automatic control type optical polyester film crystallization and drying system has the advantages of reasonable design, simple structure, low energy consumption, reliability in motion, high practicality and the like, is designed as crystallization and drying combination type integrated equipment, and is used for controlling parameters such as temperature, drying time, humidity, pressure, pressure difference, air speed, operation time and dust concentration by using a programming control technology.

Description

technical field [0001] The invention relates to the technical field of polyester optical film production equipment, in particular to an automatic control type polyester optical film crystallization drying system. Background technique [0002] The material crystallization drying method in the polyester optical film production process is generally dried by the overall equipment of the fluidized bed drying tower. This equipment is fully mixed with the internal fluid and solid particles, the temperature in the bed is uniform, and the material residence time is short and dry. It has the advantages of high speed, but it has defects or deficiencies such as high energy consumption, no consideration of heat preservation, recycling, and automatic control of the air intake unit. Contents of the invention [0003] The purpose of the present invention is to provide an automatic control type polyester optical film crystallization drying system for the defects of the prior art. [0004]...

AI Technical Summary

Problems solved by technology

[0002] The material crystallization drying method in the polyester optical film production process is generally dried by the overall equipment of the fluidized bed drying tower. This equipment is fully mixed with the internal fluid and solid particles, the temperature in the bed is uniform, and the material residence time is short and dry. It has the advantages of high speed, etc., but it has defects or deficiencies such as high energy consumption, no consideration of heat preservation, recycling, and automatic control of the air intake unit.

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