CN202754932U - Waste polyester cotton textile recycling system - Google Patents
Waste polyester cotton textile recycling system Download PDFInfo
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- CN202754932U CN202754932U CN2011205029879U CN201120502987U CN202754932U CN 202754932 U CN202754932 U CN 202754932U CN 2011205029879 U CN2011205029879 U CN 2011205029879U CN 201120502987 U CN201120502987 U CN 201120502987U CN 202754932 U CN202754932 U CN 202754932U
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- alcoholysis
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- recycling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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Abstract
The utility model discloses a waste polyester cotton textile recycling system which comprises a recycling polymerization system and a by-product collection and solvent recycling purification system. The recycling polymerization system comprises a waste polyester cotton textile raw material fusion and alcoholysis system, a polycondensation system and a color master batch injection system, the waste polyester cotton textile raw material fusion and alcoholysis system comprises a fusion unit, an alcoholysis unit, a separation unit and an aftertreatment unit, the fusion unit enables crushed waste polyester cotton textiles to enter a cloth waste fusion machine via a feed bin, the alcoholysis unit is used for partial alcoholysis of molten cloth waste polyester cotton textile by addition of alcoholysis ethylene glycol, the separation unit achieves separation of cotton fibers from polyester alcoholysate by filtering polyester and cotton fibers subjected to alcoholysis by the aid of a polyester cotton filter, and the aftertreatment unit is used for recycling aftertreatment of the obtained cotton fibers. The waste polyester cotton textiles are treated continuously to enable polyester and cotton fibers in the waste polyester cotton textiles to be recycled, so that large-scale waste polyester textile recycling is achieved, the increasing requirements of people on textile fibers are met, dependency level of the industry on petroleum is decreased, energy saving and emission reduction are realized, the environment is protected, sustainable development of the textile industry is promoted, and recycling economy of the polyester industry is developed.
Description
Technical field
The utility model belongs to the resource recovery field, and more specifically, the utility model relates to a kind of system of useless polyester-cotton textiles recycling, and this system is for the useless polyester-cotton textiles of continuous treatment and makes it be recycled the industrialization recovery system of recycling.
Background technology
Along with improving constantly of people's living standard, demand to textiles constantly enlarges, natural fiber can not satisfy people's demand already, regenerated fiber has become the main body in the textile raw material, and terylene is as the maximum kind in China's chemical fibre industry, and its production capacity had reached more than 2,900 ten thousand tons in 2010, account for more than 2/3 of the world, and the trevira that the oil conversion is produced has accounted for great proportion in regenerated fiber, and the anxiety of oil has affected again the production of trevira.Therefore, the space-pollution of Polyester Textiles will be more outstanding, thereby reclaim on a large scale Polyester Textiles recycling and have very urgent.Regenerated Polyester Fibres with useless polyester product remanufacture had both solved the direct dependence to oil, had reduced again white pollution, became a main direction of Green Textile Base future development.
The recycling of polyester is very important field during polymer is recycled.The waste polyester recovery technology is divided into physics recovery technology and chemical recovery technology two large classes.It is with the waste polyester heating and melting that physics reclaims, and by the screw extruder extrusion moulding, general process is after purifying: classification-broken-clean-dehydration-thousand dry-granulations (spinning).Chemical recovery method is by chemical reaction waste polyester to be depolymerized to low molecular compound such as terephthalic acid (TPA), dimethyl terephthalate (DMT) (DMT), ethylene glycol terephthalate (BHET), terephthalic acid two different new esters (DOTP), L--alcohol (EG) etc., can be again as polyester raw material after alcoholysis product is purified, or make other products.Chemical recovery method comprises that also chemistry improves, and usually adopts the chain modification, cross-linking modified, chlorination modified etc. changes chain length, the structure of polyester, thereby improve its some characteristic.
At present, reclaiming the field at useless polyester product both at home and abroad also nearly all is the PET bottle recovery field that is confined to, and for example the U.S. utilizes useless PET bottle through the methyl alcohol alcoholysis, and production dimethyl terephthalate (DMT) and hexylene glycol directly carry out polycondensation again and prepare new polyester.These major parts all are that the Application Areas originally according to raw material reclaims degradation and uses.
Recently, carried out relevant report to reclaiming polyester-containing textiles abroad, namely from " fiber is to the regeneration technology ".This technology refers to the trevira products such as used uniform, Sportswear are carried out chemical treatment, restores polyester raw material, then produces the process of the trevira product that makes new advances.At present, Japanese Supreme Being people company carries out this business in the Guia Hill of Japan Ehime Prefecture cause.Dupont also is studied this, and what it reclaimed employing is the methyl alcohol alcoholysis method, is DMT and EG with the polyester depolymerization.But these systems are the method to pure trevira and batch process mostly, and fail to carry out serialization, the industrializing implementation degree is low, the solvent toxicity that adopts simultaneously is strong, the clean-production system that does not provide solvent cycle to utilize.
The utility model content
For solving the problems of the technologies described above, the utility model provides a kind of useless polyester-cotton textiles recycling system, this system can recycle the textiles of useless polyester cotton blending, recovery obtains the trevira recycling of high viscosity, high added value, realize reclaiming simultaneously the recycle of solvent, guaranteed the cleaner production of this industrialization technology.
The utility model is to realize by following technical scheme:
A kind of system of useless polyester-cotton textiles recycling, it comprises following two systems:
(1) paradigmatic system of recycling;
(2) purification system that by product is collected and solvent cycle is utilized.
The paradigmatic system of described recycling comprises following three systems:
(1) useless polyester-cotton textiles raw materials melt alcoholysis system;
(2) polycondensation system;
(3) Masterbatch injected system.
Described useless polyester-cotton textiles raw materials melt alcoholysis system comprises following two unit:
(1) useless polyester-cotton textiles fragmentation enters the melt element of useless polyester-cotton textiles melting machine by feed bin, and adds simultaneously alcoholysis ethylene glycol to its partial alcoholysis unit that carries out;
(2) washing with cotton fibre of alcoholysis filtered the separating unit of having realized cotton fibre and having washed alcoholysate through the polyester-cotton blend strainer, and the unit that the cotton fibre that obtains is reclaimed aftertreatment.
Described polycondensation system comprises following two unit:
(1) to enter three phases be that precondensation stage is carried out the precondensation unit that precondensation is processed to the material after the further alcoholysis of alcoholysis still, before entering precondensation stage, or/and add catalyzer and deviate from micromolecular in the alcoholysate and deviate from the unit, and carry out simultaneously partially polymerized polymerized unit;
(2) material after precondensation stage is processed enters the poly-stage of final minification and carries out the poly-unit of the poly-final minification of processing of final minification.
The system of described Masterbatch injected system for described Masterbatch is mixed with melt after the polycondensation.
The beneficial effects of the utility model are:
The system of the disclosed useless polyester-cotton textiles recycling of the utility model, the serialization recycling of extensive useless polyester-cotton textiles will be realized, through engineering approaches is strong, and the solvent that adopts in the removal process can recycle, method successful implementation of the present utility model will satisfied people to requiring under the prerequisite that textile fibres increases, can reduce the demand to oil, reduce industrial goods production discharge capacity.Reduced simultaneously pollution, the enabling environment protection promotes the weaving Sustainable development.The state of the art and the characteristics that meet textile industry, the recycling economy of realization PET industry.
Description of drawings
Fig. 1 is the system flowchart of useless polyester-cotton textiles recycling;
Fig. 2 is the recycle clean-production system schema of solvent for use.
Embodiment
Below in conjunction with embodiment, the utility model is described further.
Embodiment 1
Take by weighing useless polyester cotton blending textiles 120kg/h, enter the screw rod melting, add ethylene glycol 600kg/h toward screw rod simultaneously, be 200 ℃ of lower alcoholysis 10min in normal pressure, temperature, after carrying out the alcoholysis melting, processes through the polyester-cotton blend filtering system again by useless polyester-cotton textiles melting machine, reclaim cotton fibre and carry out follow-up clean, and the pure alcoholysate of washing of separating enters the alcoholysis still, under little negative pressure, carry out further alcoholysis, temperature is 250 ℃ of lower alcoholysis 10min, guaranteed the abundant alcoholysis of useless polyester, the ethylene glycol that this stage extracts out enters the ethylene glycol treatment system.Material after the further alcoholysis of alcoholysis still enters precondensation stage, before entering precondensation stage, add catalyzer 0.5g/h, being made into catalyst glycol concentration is 30%, be 1000Pa in vacuum tightness, temperature of reaction is 280 ℃, reaction times is 30min, deviate from the small molecules in the alcoholysate, simultaneously partially polymerized, it is poly-that the material after precondensation is processed enters final minification, at vacuum tightness＜100Pa, temperature of reaction is 285 ℃, be 100min between reaction is seasonable, deviate from the small molecules such as ethylene glycol, the limiting viscosity of the polyester that obtains regenerating 0.67dl/g.
Embodiment 2
Come the ethylene glycol 100kg/h of the alcoholysis still extraction of autonomous system retrieving arrangement, entering an ethylene glycol lightness-removing column processes, remove the light constituent in the alcoholysis ethylene glycol, carry out the export trade processing in overhead collection to light constituent and with this part light constituent collection, at the bottom of tower, obtained the ethylene glycol 98kg/h of light constituent, entered an ethylene glycol weight-removing column and process, the restructuring at the bottom of tower has been divided collect the export trade processing, obtain highly purified ethylene glycol 94kg/h at cat head, purity is〉85%.
Should be appreciated that above narration only is example and illustrative for the utility model of setting forth such as claim, is limited it.The of the present utility model content disclosed according to this paper, other embodiment of the present utility model is apparent for a person skilled in the art.Should be noted that this specification sheets and embodiment only should be regarded as is example, and actual range of the present utility model should be determined by claim.
Claims (1)
1. the system of a useless polyester-cotton textiles recycling, it is characterized in that: it comprises following two systems:
(1) paradigmatic system of recycling;
(2) purification system that by product is collected and solvent cycle is utilized;
Be connected by pipeline between the purification system that the paradigmatic system of described recycling and by product are collected and solvent cycle is utilized;
The paradigmatic system of described recycling comprises following three systems:
(1) useless polyester-cotton textiles raw materials melt alcoholysis system;
(2) polycondensation system;
(3) Masterbatch injected system;
The outlet of described useless polyester-cotton textiles raw materials melt alcoholysis system is connected by pipeline with the entrance of described polycondensation system; The outlet of described polycondensation system is connected by pipeline with described Masterbatch injected system;
Described useless polyester-cotton textiles raw materials melt alcoholysis system comprises such as lower unit:
(1) useless polyester-cotton textiles fragmentation enters the melt element of cloth waste melting machine by feed bin, and adds simultaneously alcoholysis ethylene glycol it is carried out the alcoholysis unit of partial alcoholysis;
(2) washing with cotton fibre of alcoholysis realized cotton fibre and the separating unit that separates of washing alcoholysate through the filtration of polyester-cotton blend strainer, and the post-processing unit that the cotton fibre that obtains is reclaimed aftertreatment;
Described polycondensation system comprises such as lower unit:
(1) to enter three phases be that precondensation stage is carried out the precondensation unit that precondensation is processed to the material after the further alcoholysis of alcoholysis still, before entering precondensation stage, or/and add catalyzer and deviate from micromolecular in the alcoholysate and deviate from the unit, and carry out simultaneously partially polymerized polymerized unit;
(2) material after precondensation stage is processed enters the poly-stage of final minification and carries out the poly-unit of the poly-final minification of processing of final minification;
The system of described Masterbatch injected system for described Masterbatch is mixed with melt after the polycondensation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205029879U CN202754932U (en) | 2011-12-06 | 2011-12-06 | Waste polyester cotton textile recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205029879U CN202754932U (en) | 2011-12-06 | 2011-12-06 | Waste polyester cotton textile recycling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202754932U true CN202754932U (en) | 2013-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205029879U Expired - Lifetime CN202754932U (en) | 2011-12-06 | 2011-12-06 | Waste polyester cotton textile recycling system |
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| CN (1) | CN202754932U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120028A (en) * | 2016-08-27 | 2016-11-16 | 胡崇北 | A kind of tailoring refills receipts disposal plant with broken |
| CN108754674A (en) * | 2018-05-27 | 2018-11-06 | 上海锦湾实业有限公司 | A kind of regenerated silk processing and treating method |
| WO2024067728A1 (en) * | 2022-09-27 | 2024-04-04 | 和友纺织股份有限公司 | Physical recycling method and system for finished textile products, and processing material manufactured thereby |
-
2011
- 2011-12-06 CN CN2011205029879U patent/CN202754932U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120028A (en) * | 2016-08-27 | 2016-11-16 | 胡崇北 | A kind of tailoring refills receipts disposal plant with broken |
| CN106120028B (en) * | 2016-08-27 | 2018-10-23 | 安徽佳宝服饰有限公司 | A kind of tailoring cloth waste recycling disposal device |
| CN108754674A (en) * | 2018-05-27 | 2018-11-06 | 上海锦湾实业有限公司 | A kind of regenerated silk processing and treating method |
| WO2024067728A1 (en) * | 2022-09-27 | 2024-04-04 | 和友纺织股份有限公司 | Physical recycling method and system for finished textile products, and processing material manufactured thereby |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |