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Super(sub)critical CO2 scouring device

A CO2 and wool scouring technology, which is applied in the recovery/refining of fatty substances, chemical post-treatment of fibers, animal raw materials, etc., can solve the problems of difficult extraction of organic pollutants, high water consumption and energy consumption, high oil, high pollution, etc., to achieve The effect of solving high water consumption and high pollution problems, efficient recycling, and meeting the requirements of clean production

Active Publication Date: 2019-11-19
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a super (sub) critical CO 2 The wool scouring device solves the high water consumption and high pollution problems of the existing water medium scouring process, and can realize efficient oil recovery, meeting the clean production requirements of the scouring process

Method used

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  • Super(sub)critical CO2 scouring device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A super(sub)critical CO 2 Scrubbing kettle, the super(sub)critical CO 2 The scouring kettle includes a kettle body 1301 of the scouring kettle and a lid 1302 of the scouring kettle;

[0026] The bottom of the kettle body 1301 is provided with CO 2 Inlet 1301-1 and several ultrasonic transducers 1301-9;

[0027] A water impurity separation membrane 1301-2 with a pore size of 0.5 μm is installed inside the kettle body 1301, and a water enrichment zone is formed between the water impurity separation membrane 1301-2 and the bottom of the kettle body 1301;

[0028] The kettle body 1301 is provided with a porous bottom plate 1301-3 with a pore diameter of 0.5mm, and the porous bottom plate 1301-3 is located above the water-impurity separation membrane 1301-2, and the porous bottom plate 1301-3 and the water-impurity separation membrane An impurity-enriched area is formed between 1301-2;

[0029] The kettle body 1301 is provided with a porous cover plate 1301-4 with a pore...

Embodiment 2

[0038] A super(sub)critical CO 2 Wool washing device, the super(sub)critical CO 2 The washing unit includes CO 2 Liquid storage tank 1, condenser 4, CO 2 Booster pump 7, heat exchanger 8, solvent storage tank 9, metering pump 11, super (sub) critical CO described in embodiment 1 2 Washing kettle Ⅰ13, and super (sub)critical CO 2 The same super (sub) critical CO as the washing kettle Ⅰ13 2 Washing kettle Ⅱ 25, CO 2 Circulation pump 17, separation kettle I20, separation kettle II22, adsorber 23;

[0039] The CO 2 The outlet Ⅰ of the liquid storage tank 1 passes through valve Ⅰ2, valve Ⅱ3, condenser 4, valve Ⅲ5, valve Ⅳ6, CO 2 The booster pump 7 is connected to the inlet I of the heat exchanger 8;

[0040] The solvent storage tank 9 is sequentially connected to the inlet I of the heat exchanger 8 through the metering pump 11 and the valve V10;

[0041] The outlet I of the heat exchanger 8 passes through the valve VI12 and the super (sub) critical CO 2 CO in scouring ket...

Embodiment 3

[0054] Utilize the super(sub)critical CO of the device described in embodiment 2 2 A method for scouring hair, said method comprising the steps of:

[0055] Firstly, the wool (velvet) fibers after the initial opening are transported to the super (sub) critical CO 2 Wool (velvet) bin 1301-5 and super (sub) critical CO 2 In the wool (velvet) bin of scouring kettle II 25, the super (sub)critical CO 2 Wool (velvet) bin 1301-5 and super (sub) critical CO 2 The hair (velvet) bins of the hair scourer II 25 are put into super (sub) critical CO 2 Kettle body 1301 and super(sub)critical CO of hair washing kettle I13 2 In the kettle body of scouring kettle II 25, close the super (sub)critical CO 2 Kettle cover 1302 of hair washing kettle I13, super (sub)critical CO 2 The lid of the washing kettle II 25;

[0056] Liquid CO 2 transported to CO 2 In the liquid storage tank 1, the co-solvent is delivered to the solvent storage tank 9;

[0057] When scouring wool, first open valve I...

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Abstract

The invention relates to a super(sub)critical CO2 scouring device, and belongs to the field of scouring equipment.The device includes a kettle body and a kettle lid of a super(sub)critical CO2 scouring kettle; a CO2 inlet is provided at the bottom of the kettle body, and a CO2 outlet is provided on the kettle body; the kettle body is internally provided with a water and purity separation membrane,a porous bottom plate, and a porous cover plate from bottom to top; a wool (velvet) bin is provided between the porous bottom plate and the porous cover plate; a co-solvent inlet is provided on the top of the kettle cover, and the kettle cover is internally provided with a distributor.When the kettle lid covers the kettle body, the CO2 outlet is located between the porous cover plate and the distributor.The device of the invention uses super(sub)critical CO2 instead of aqueous medium for chemical scouring, which solves the problem of high water consumption and high pollution during the scouring of the aqueous medium, and can realize the efficient recovery of oil and fat, which meets the clean production requirements of the washing scouring.

Description

technical field [0001] The present invention relates to a super (sub)critical CO 2 A wool washing device belongs to the field of wool washing equipment. Background technique [0002] The purpose of wool scouring is to remove dust, sheep sweat, dirt, grease, etc. from wool, and to obtain scoured wool without tangles or felting. Scoured wool is the basis of wool spinning products, and the quality of scoured wool has a significant impact on subsequent processing. During the growth of sheep, on the one hand, due to the influence of the feeding environment, the wool is rich in mineral and vegetable impurities, such as sand, various grasses, feed, etc. On the other hand, the sweat, fat, dander, and feces excreted by the sheep during the growth process are also attached to the wool. The content of residual pollutants on the surface of scoured wool affects the whiteness, dyeability and drawing and spinning performance of scoured wool; the looseness and damage of scoured wool affe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01C3/00C11B11/00
CPCD01C3/00C11B11/005Y02W30/74
Inventor 郑环达郑来久张娟高世会刘国华周天博
Owner DALIAN POLYTECHNIC UNIVERSITY
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