CN102154718B - Direct spinning process for regenerated polypropylenes - Google Patents
Direct spinning process for regenerated polypropylenes Download PDFInfo
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- CN102154718B CN102154718B CN201110095807A CN201110095807A CN102154718B CN 102154718 B CN102154718 B CN 102154718B CN 201110095807 A CN201110095807 A CN 201110095807A CN 201110095807 A CN201110095807 A CN 201110095807A CN 102154718 B CN102154718 B CN 102154718B
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Abstract
The invention provides a direct spinning process for regenerated polypropylenes. The process comprises the following steps of: a, pretreatment: selecting waste and old PP plastics, shredding the PP plastics, floating waste and old PP plastics, cleaning the waste and old PP plastics, and dewatering the cleaned waste and old PP plastics; b, production of polypropylenes: measuring the dewatered waste and old PP plastics in a ratio, performing compaction plasticizing and fusion, performing vacuum pumping by a vacuum pump, filtering the PP plastics by a filter, spinning the filtered PP plastics and cooling the obtained threads; and c, post-treatment: adding oil to and drawing the cooled threads. The process has the advantages of simplifying working procedures, reasonably using waste and old PP plastics, lowering production cost and avoiding the environmental pollution caused by waste and old PP plastics.
Description
Technical field
The present invention relates to the recovery technology of waste or used plastics, more specifically saying so and adopting the waste PP plastics is the regeneration polypropylene fibre direct spinning process of raw material.
Background technology
Plastics are polymer of a kind of artificial Polymer Synthesizing, are comparatively novel industrial materials.PP plastics (polypropylene) are the another fine resin kinds of development after nylon, it be a kind of high density, unprotected side chain, high crystallization must linear polymer, have excellent comprehensive performances.Plastics have also produced a large amount of pollutions when bringing convenience with interests to people's life with production.There are data to show; The general-purpose plastics of about 70%-80% will be converted into waste plastics in the plastics total amount in 10 years; Wherein 50% will in 2 years, be converted into waste plastics, these waste plastics cup people arbitrarily abandon and inappropriate processing, bring greatly harm to environment; People are called it " white pollution ", and therefore the recovery to plastics seems very important.
The production of polypropylene fibre at present roughly is divided into two kinds, and a kind of is to make raw material through polymerization by propylene, and to its material modification, melt spinning, spinning melt filters, blowing is cooled off, reel, make fiber, but the polypropylene fibre silk intensity of producing is on the low side; Second kind is that the employing acrylic resin is a raw material, and spinning moulding carries out two-stage traction and twisting at spindle formula traction twisting mill then, makes high-strength polypropylene filament.At present part manufacturer produces polypropylene fibre through reclaiming the waste PP plastics, and production technology comprises that waste PP processing of plastic process flow is following: seal off-----dedusting--select materials--tear to shreds--flotation--friction cleans--dehydration--the compacting plasticizing--the screw rod fusion--filter--die head extrudes--cooling--pelletizing--classification--packing; Produce the production process of polypropylene fibre: regenerated granule--batching--stir--dry--feed intake--the screw rod fusion--filter--spinning--cooling--oil--drawing-off--reel--classification--packing.Therefore at present when utilizing waste PP plastics-production polypropylene staple fibre spun yarn, need to become can be used for producing by the waste PP plastic processing earlier the regenerated granule of polypropylene staple fibre spun yarn, be processed into polypropylene staple fibre spun yarn by regenerated granule again, production process is comparatively various.
Summary of the invention
A kind of regeneration polypropylene fibre direct spinning process provided by the invention, its purpose are to overcome the existing high shortcoming of production cost of producing polypropylene staple fibre spun yarn, simultaneously also in order to overcome the existing various shortcoming of technique process that waste PP plastics-production polypropylene fibre spins that reclaims.
The technical scheme that the present invention adopts is following:
A kind of regeneration polypropylene fibre direct spinning process may further comprise the steps:
A, pre-treatment: choose the waste PP plastics, tear to shreds and carry out flotation, cleaning, the waste PP plastics that clean up are dewatered;
The production of b, polypropylene fibre: waste PP plastics after the metering dehydration in proportion, compacting plasticizing, fusion, and vacuumize through vavuum pump are filtered through filter then, and the waste PP plastics after will filtering carry out spinning and cool off;
C, post processing: cooled silk is oiled and drawing-off.
Choose the opening and the dedusting that also comprise the waste PP plastics before the waste PP plastics among the said step a.
Clean among the said step a and adopt friction to clean.
Fusion among the said step b is to adopt screw rod to carry out fusion.
Connect a shunt among the said step b behind the filter; Shunt connects each output channel; Waste PP plastics after shunt will filter are assigned to each output channel; The waste PP plastics of wherein a part of output channel output carry out spinning, and the waste PP plastics of another part output channel output are used for granulation.
Also comprise among the said step c with after the drawing-off the silk reel, classification and the packing.
Can know through the above-mentioned description of this invention, and comparing with prior art, the invention has the advantages that:
1, this regeneration polypropylene fibre direct spinning process has fully been optimized the production process of producing polypropylene staple fibre spun yarn; Reduced in the waste PP plastics-production operation " die head extrudes-, cooling-, pelletizing-, classification-, packing " etc. operation; Therefore reduced the use of equipment such as cutting machine, comminutor; Also reduce electric consumption, reached the purpose of energy savings.
2, owing to the plasticizing of compacting in the production of polypropylene fibre further drains the moisture in the raw material; Can make compound drying and charging more even; PP plastics after the fusion simultaneously vacuumize through vavuum pump; Can water, monomer and volatile matter be got rid of, increase spinnability, the stringiness of raw material, also guarantee the quality of raw material simultaneously.
3, because polypropylene fibre only needs through a fusion in process of production, and need carry out twice fusion in the production technology of original polypropylene fibre and compare, reduce destruction, increase spinnability, the stringiness of raw material, make the better quality of the polypropylene fibre produced raw material.
4, this regeneration polypropylene fibre direct spinning process has been practiced thrift production cost with waste PP plastics recovery and utilization, has also avoided waste PP plastic pollution environment, environmental protection more simultaneously.
5, owing to connect a shunt among the step b behind the filter; Shunt connects each output channel, and the waste PP plastics after shunt will filter are assigned to each output channel, and the waste PP plastics of wherein a part of output channel output carry out spinning; The waste PP plastics of the output channel output of another part can be used for granulation; Therefore can also granulation when producing polypropylene fibre, improved the service efficiency of device therefor, practical more.
The specific embodiment
A kind of regeneration polypropylene fibre direct spinning process may further comprise the steps:
A, pre-treatment: with the waste PP plastics seal off, dedusting, the waste PP plastics of choosing wherein tear it to shreds, and carry out flotation, friction is cleaned, then with the waste PP plastics dehydration that cleans up and put into storage bin;
The production of b, polypropylene fibre: the waste PP plastics after the metering dehydration carry out the compacting plasticizing in proportion, and the moisture in the raw material is further drained, and make compound dry; Charging is more even, screw rod fusion simultaneously, and vacuumize through vavuum pump; Water, monomer and volatile matter are got rid of; Filter through filter then, remove impurity, the waste PP plastics after will filtering at last carry out spinning and cooling;
C, post processing: with cooled silk oil, drawing-off, coiling, classification and packing.
The production technology operation that above-mentioned employing waste PP plastics are the raw material production polypropylene staple fibre spun yarn is simple; The waste PP plastics have rationally been utilized simultaneously; Reduce production costs, also avoided waste PP plastic pollution environment, this production technology has reduced the destruction to raw material; Spinnability, the stringiness of raw material have been increased, the better quality of the feasible polypropylene fibre of producing.
Except that the foregoing description, can also behind the filter among the step b, connect a shunt, shunt connects each output channel; Waste PP plastics after shunt will filter are assigned to each output channel; The waste PP plastics of wherein a part of output channel output carry out spinning, and the waste PP plastics of another part output channel output are used for granulation, therefore all right granulation when producing polypropylene fibre; Improved the service efficiency of device therefor, practical more.
Above-mentionedly be merely the specific embodiment of the present invention, but design concept of the present invention is not limited thereto, allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.
Claims (5)
1. regeneration polypropylene fibre direct spinning process is characterized in that: may further comprise the steps:
A, pre-treatment: choose the waste PP plastics, tear to shreds and carry out flotation, cleaning, the waste PP plastics that clean up are dewatered;
The production of b, polypropylene fibre: the waste PP plastics after metering is dewatered in proportion; Compacting plasticizing, fusion, and vacuumize through vavuum pump, filter through filter then and this filter after connect a shunt; Shunt connects each output channel; Waste PP plastics after shunt will filter are assigned to each output channel, and the waste PP plastics of wherein a part of output channel output carry out spinning and cooling, and the waste PP plastics of another part output channel output are used for granulation;
C, post processing: cooled silk is oiled and drawing-off.
2. a kind of regeneration polypropylene fibre direct spinning process according to claim 1 is characterized in that: choose the opening and the dedusting that also comprise the waste PP plastics before the waste PP plastics among the said step a.
3. a kind of regeneration polypropylene fibre direct spinning process according to claim 1 is characterized in that: clean among the said step a and adopt friction to clean.
4. a kind of regeneration polypropylene fibre direct spinning process according to claim 1 is characterized in that: the fusion among the said step b is to adopt screw rod to carry out fusion.
5. a kind of regeneration polypropylene fibre direct spinning process according to claim 1 is characterized in that: also comprise among the step c with after the drawing-off the silk reel, classification and the packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110095807A CN102154718B (en) | 2011-04-18 | 2011-04-18 | Direct spinning process for regenerated polypropylenes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110095807A CN102154718B (en) | 2011-04-18 | 2011-04-18 | Direct spinning process for regenerated polypropylenes |
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| CN102154718A CN102154718A (en) | 2011-08-17 |
| CN102154718B true CN102154718B (en) | 2012-09-05 |
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| CN201110095807A Active CN102154718B (en) | 2011-04-18 | 2011-04-18 | Direct spinning process for regenerated polypropylenes |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103668492A (en) * | 2013-11-30 | 2014-03-26 | 江苏奥森新材料有限公司 | Production method of polypropylene nonwoven fabric |
| CN106007502A (en) * | 2016-05-20 | 2016-10-12 | 太原理工大学 | Method for enhancing mechanical properties of paste filling material by using plastic waste |
| CN107881587A (en) * | 2017-10-09 | 2018-04-06 | 福建三宏再生资源科技有限公司 | A kind of quality soft regeneration polypropylene yarn line and its process for producing |
| CN107858764A (en) * | 2017-10-09 | 2018-03-30 | 福建三宏再生资源科技有限公司 | The regeneration polypropylene yarn line and its process for producing of a kind of acid-proof alkaline |
| CN107881589A (en) * | 2017-10-09 | 2018-04-06 | 福建三宏再生资源科技有限公司 | A kind of regeneration polypropylene yarn line and its process for producing with high spinning performance |
| CN107881588A (en) * | 2017-10-09 | 2018-04-06 | 福建三宏再生资源科技有限公司 | A kind of regeneration polypropylene yarn line and its process for producing with anti-degradability |
| CN108103614A (en) * | 2017-10-09 | 2018-06-01 | 福建三宏再生资源科技有限公司 | A kind of manufacturing process that regeneration polypropylene fiber is produced using mixed plastic |
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| US3884855A (en) * | 1971-03-24 | 1975-05-20 | Davy Ashmore Ag | Process for the production of regenerate from polypropylene waste |
| CN1287188A (en) * | 2000-09-22 | 2001-03-14 | 北京德通化纤工业有限公司 | Spinning process of functional fiber by regenerating and modifying waste polyester plastic |
| CN101130901A (en) * | 2007-08-21 | 2008-02-27 | 刘宇星 | Method for producing two/three-dimensional spatial fibre using reprocessed plastic |
| CN101289766A (en) * | 2008-06-05 | 2008-10-22 | 江苏江南高纤股份有限公司 | Polyester staple fiber of recovered chip spinning |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003129329A (en) * | 2001-10-19 | 2003-05-08 | Mitsubishi Rayon Co Ltd | Recycled polypropylene fiber and method of producing the same |
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2011
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|---|---|---|---|---|
| US3884855A (en) * | 1971-03-24 | 1975-05-20 | Davy Ashmore Ag | Process for the production of regenerate from polypropylene waste |
| CN1287188A (en) * | 2000-09-22 | 2001-03-14 | 北京德通化纤工业有限公司 | Spinning process of functional fiber by regenerating and modifying waste polyester plastic |
| CN101130901A (en) * | 2007-08-21 | 2008-02-27 | 刘宇星 | Method for producing two/three-dimensional spatial fibre using reprocessed plastic |
| CN101289766A (en) * | 2008-06-05 | 2008-10-22 | 江苏江南高纤股份有限公司 | Polyester staple fiber of recovered chip spinning |
Non-Patent Citations (4)
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| JP特开2003-129329A 2003.05.08 |
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