Waste cotton-polyester blended fabric separating and recycling device and recycling process and application thereof

A separation and recovery, polyester-cotton blending technology, which is applied in the field of waste polyester-cotton blended fabric separation and recovery devices, can solve problems such as the operation failure of separation equipment, and achieve the effects of reducing the amount of acid hydrolyzate, enhancing the removal effect, and improving the separation and recovery efficiency.

Active Publication Date: 2021-12-31
FUJIAN SAILON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the actual operation of the method adopted in the application, the waste textiles are very easy to form textile entanglements on the stirring paddles, resulting in the failure of the separation equipment
[0004] Therefore, there is an urgent need for a device and a process method that can effectively separate and recycle waste polyester-cotton blended fabrics, which can effectively avoid operating failures of separation and recovery equipment caused by problems such as entanglement of waste fabrics during the separation process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Waste cotton-polyester blended fabric separating and recycling device and recycling process and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1 The first aspect provides a kind of waste polyester-cotton blended fabric separation and recovery device: as figure 1 As shown, the drum type separation device is composed of a horizontal rotatable reactor 1, a filter system 2 and a power system 3; the horizontal rotatable reactor 1 is composed of an outer cylinder 4 and an inner cylinder 5; the outer cylinder 4 is cylindrical, and the axial It is horizontally fixed on the bracket; the outer cylinder 4 is provided with a cylinder cover 9, a liquid inlet pipe 10, and a liquid discharge pipe 11; The cylinder body is detachably and fixedly connected by quick-opening bolts; the drain pipe 11 is arranged at the lower part of the cylinder body, and the starting end of the drain pipe 11 is arranged between the outer cylinder 4 and the inner cylinder 5, and the drain pipe 11 is also provided with Turn the valve to control the liquid flow rate, and the outside of the cylinder is wrapped with a heating element 12; th...

Embodiment 2

[0049] The specific implementation of this embodiment is the same as in Example 1, except that the acid solution is an aqueous acetic acid solution with a concentration of 10wt%, and the mass ratio of the aqueous acetic acid solution to waste polyester-cotton blended fabric is 20:1; waste and old polyester-cotton blended fabric The mass ratio of medium polyester / cotton is 65:35; in step (3), the reaction temperature is 150°C.

[0050] In the present embodiment, the recovery rate of polyester is 99%, and the recovery rate of cotton fiber cellulose powder is 81%.

[0051] Can know by embodiment 1~2, a kind of waste polyester-cotton blended fabric separation and recovery device provided by the present invention and its application, the separation and recovery method technology that provides in the application cooperates the separation and recovery device in the application, can effectively It avoids the occurrence of entanglement between textiles and stirring paddles, reduces equ...

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Abstract

The invention belongs to the field of B01J19/00 of IPC classification, and provides a waste cotton-polyester blended fabric separating and recycling device and a recycling process and application thereof. The separating and recycling device is a drum-type separating device, and the drum-type separating device mainly comprises a horizontal rotatable reaction kettle (1), a filtering system (2) and an electric power system (3). The recycling process method mainly comprises the following steps of (1) configuring the drum-type separating device; (2) placing waste polyester cotton and an acidolysis solution; (3) performing mixed acidolysis; (4) filtering and collecting a product; (5) rinsing and spin-drying a fabric; (6) centrifugally drying the fabric; and (7) crushing and drying a filtered product. The separating and recycling method and process provided by the invention are matched with the separating and recycling device provided by the invention, so that the entanglement phenomenon of the textile fabric and a stirring paddle can be effectively avoided, and the phenomena of equipment blockage, mechanical failure and the like are reduced.

Description

technical field [0001] The invention relates to the B01J19 / 00 field of IPC classification, in particular to a waste polyester-cotton blended fabric separation and recovery device and its application. Background technique [0002] With social development and economic progress, the world's population continues to grow. By 2020, the world's population will be close to 7.6 billion. China's population of 1.4 billion ranks the largest in the world, and the population is still on the rise. As the population continues to increase, so do social issues, and textile items are one of the most concerned issues. On the one hand, with the acceleration of population growth, people in many poor areas cannot have enough clothes to keep warm. On the other hand, the inventory of waste textiles after use is also continuously increasing, which has brought certain pressure to the storage system. , if the waste textiles can be effectively regenerated and reused, the above two problems can be effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01G11/04
CPCD01G11/04Y02W30/66Y02W30/62
Inventor 赖文钦柯希贤朱恩斌林飞芳姚仲鹏陆东东吴建通张俊峰
Owner FUJIAN SAILON TECH CO LTD
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