Method for continuous drying regenerative piece of polyester bottle, and dedicated drying equipment

A technology of recycled polyester and drying method, which is applied in the direction of drying solid materials, heating to dry solid materials, drying, etc., which can solve the problems of high energy consumption, high energy consumption, and high labor intensity of drum dryers, and achieve drying effects Stable, reliable, uniform, high safety factor, and low labor intensity

Inactive Publication Date: 2007-07-25
ZHEJIANG HUAXIN CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are following problems: 1, energy consumption is high
Due to the vacuum inside the drum container and the heat medium outside, it is very heavy and consumes electric energy when rotating. At the same time, the power of the vacuum pump is also large, and the heated heat medium dissipates more heat. Several factors make the rotating drum Drum dryer energy consumption is high
2. Big potential safety hazard
The drum vacuum drying container is a pressure vessel and works in a rotating state, which is prone to leakage of high-temperature heat

Method used

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  • Method for continuous drying regenerative piece of polyester bottle, and dedicated drying equipment
  • Method for continuous drying regenerative piece of polyester bottle, and dedicated drying equipment

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Embodiment Construction

[0031] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] As shown in Figure 1, a device dedicated to the continuous drying of recycled polyester bottle flakes, including a feed hopper 1, an auger fan combination 2, a combination of 5 sets of cyclone separators 4 and heat preservation hopper 5, and cyclone separation device 4 and storage tower 9.

[0033] As shown in Figure 4, the auger fan combination 2 is arranged below the feed hopper 1, and it includes an auger 15 and a hot air blower 17. The feed port 16 of the auger 15 is connected to the feed hopper 1, and the discharge of the auger 15 The mouth is connected to the air channel 3 of the hot air blower 17.

[0034] As shown in FIG. 2 , the cyclone separator 4 is provided with a feed port 11 , an air outlet 10 is provided at the top thereof, and a discharge port 12 is provided at the bottom thereof. The material inlet 11 is...

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Abstract

A method for continuously drying regenerated polyester bottle sheet includes sending said bottle sheets to cyclone separator under common action of hot air fan and conveyer belt, dropping bottle sheets into insulated bunker after bottle sheet is separated from hot air, dropping bottle sheet in bunker onto another fan and conveyer belt combined unit to enter another circulation after bottle sheets are stored in said bunker for certain period and realizing purpose of drying by carrying out numbers of circulations. The device for realizing said method is also disclosed.

Description

technical field [0001] The invention relates to a drying method and special equipment for recycled polyester bottle flakes. Background technique [0002] During the recycling and regeneration process of recycled PET bottle flakes, cleaning and drying must be carried out to obtain relatively clean bottle flakes. The existing traditional drying method is to use a rotary drum vacuum dryer. [0003] The rotary drum vacuum dryer is a rotatable cylindrical container with a steam or heat transfer oil heating jacket on a bracket, and is equipped with a feeding port and a vacuum port. The principle of the drum vacuum dryer is to fill the bottle flakes into the drum container, heat and vacuumize. After a certain period of time, the bottle flakes will increase in temperature, and the moisture in them will be vacuumed away, so as to achieve the best drying effect. Purpose. This drying method is feasible and is a commonly used method at present. But there are following problems: 1, e...

Claims

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Application Information

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IPC IPC(8): F26B17/10F26B17/18F26B3/06
Inventor 杜国强
Owner ZHEJIANG HUAXIN CHEM FIBER
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