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ABS resin and PS resin separation system, separation method and application

A ABS resin and resin separation technology, applied in solid separation, recycling technology, flotation, etc., can solve the problems of difficult separation of ABS and PS, and achieve the effect of improving the efficiency of flotation separation

Pending Publication Date: 2021-07-02
石家庄绿色再生资源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above problems in the prior art, the present invention aims to provide a separation system, separation method and application of ABS resin and PS resin. The separation system and separation method provided by the application can effectively improve the separation effect of ABS and PS, and solve the problem of The problem of difficult separation of ABS and PS

Method used

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  • ABS resin and PS resin separation system, separation method and application

Examples

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Comparison scheme
Effect test

Embodiment 1

[0048] Mixed water washing: clean the mixture containing PP resin, ABS resin and PS resin with a diameter of 5-7mm and a thickness of 1-3mm, then put the mixture in a clear water pool for mixed water washing, and let it stand for 8 minutes to make it The flotation is stratified to obtain the mixed material of floating PP, sinking ABS and PS.

[0049] Primary flotation: Put clean water and primary flotation liquid in the primary flotation device, and then put the mixture of ABS and PS into the primary flotation device for primary flotation, among which, primary flotation The composition of the liquid is: the concentration of tannic acid is 250mg / L, the concentration of terpineol is 40mg / L, the stirring time of the primary flotation process is 3min, and the flotation time is 4min. The first-stage flotation process obtains the sinking ABS and the floating PS.

[0050] Secondary flotation of sinking matter: carry out secondary flotation of sinking matter on ABS, so that the PS in...

Embodiment 2

[0055] Mixed water washing: clean the mixture containing PP resin, ABS resin and PS resin with a diameter of 5-7mm and a thickness of 1-3mm, then put the mixture in a clear water pool for mixed water washing, and let it stand for 8 minutes to make it The flotation is stratified to obtain the mixed material of floating PP, sinking ABS and PS.

[0056] Primary flotation: Put clean water and primary flotation liquid in the primary flotation device, and then put the mixture of ABS and PS into the primary flotation device for primary flotation, among which, primary flotation The composition of the liquid is: the concentration of tannic acid is 240mg / L, the concentration of terpineol is 35mg / L, the stirring time of the primary flotation process is 3min, and the flotation time is 4min. The first-stage flotation process obtains the sinking ABS and the floating PS.

[0057] Secondary flotation of sinking matter: carry out secondary flotation of sinking matter on ABS, so that the PS in...

Embodiment 3

[0062] Mixed water washing: clean the mixture containing PP resin, ABS resin and PS resin with a diameter of 5-7mm and a thickness of 1-3mm, then put the mixture in a clear water pool for mixed water washing, and let it stand for 8 minutes to make it The flotation is stratified to obtain the mixed material of floating PP, sinking ABS and PS.

[0063] Primary flotation: Put clean water and primary flotation liquid in the primary flotation device, and then put the mixture of ABS and PS into the primary flotation device for primary flotation, among which, primary flotation The composition of the liquid is: the concentration of tannic acid is 260mg / L, the concentration of terpineol is 45mg / L, the stirring time of the primary flotation process is 3min, and the flotation time is 4min. The first-stage flotation process obtains the sinking ABS and the floating PS.

[0064] Secondary flotation of sinking matter: carry out secondary flotation of sinking matter on ABS, so that the PS in...

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Abstract

The invention discloses an ABS resin and PS resin separation system, a separation method and application. In the separation system of the invention, a primary flotation device is provided with a primary flotation liquid inlet, an ABS and PS inlet, a settling ABS outlet and a float PS outlet; a settling secondary settling flotation device is provided with a settling secondary flotation liquid inlet, a settling ABS inlet, a secondary settling ABS outlet I and a secondary floating substance PS outlet I, and the settling ABS inlet is connected with the settling ABS outlet of the primary flotation device; and a float secondary flotation device is provided with afloat secondary flotation liquid inlet, a float PS inlet, a secondary settling ABS outlet II and a secondary float PS outlet II, and the float PS inlet is connected with the float PS outlet of the primary flotation device. By adopting the ABS resin and PS resin separation system, the separation method and the application, the separation efficiency and the recovery purity of the ABS resin and the PS resin can be remarkably improved.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to an ABS resin and PS resin separation system, separation method and application, and in particular to recycling of waste refrigerator shells. Background technique [0002] At present, the materials of waste refrigerator shells are mainly ABS resin (terpolymer of acrylonitrile, butadiene and styrene), PS resin (polystyrene resin) and PP resin (polypropylene resin). During the process, a large amount of mixed plastic fragments of ABS, PS and PP will be obtained. However, due to the similar density and charging properties of ABS resin and PS resin, it is difficult to separate the two by common sorting methods. If the sorting is not thorough, it will seriously affect the reuse quality of waste plastics. At present, the sorting efficiency of the commonly used manual sorting method is low, and it is urgent to provide an effective treatment method to improve the sorting purity a...

Claims

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Application Information

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IPC IPC(8): B29B17/02B03D1/018B03D1/02B03D101/04B03D101/00
CPCB29B17/02B03D1/018B03D1/02B29B2017/0203B29B2017/0248B03D2201/04B03D2201/00Y02W30/62
Inventor 冯乐斐杨圣月秦远秦邦保王九飙梁雅诗
Owner 石家庄绿色再生资源有限公司
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