CN101314255A - Apparatus for reutilization of waste and old polyester - Google Patents
Apparatus for reutilization of waste and old polyester Download PDFInfo
- Publication number
- CN101314255A CN101314255A CNA2007100414191A CN200710041419A CN101314255A CN 101314255 A CN101314255 A CN 101314255A CN A2007100414191 A CNA2007100414191 A CN A2007100414191A CN 200710041419 A CN200710041419 A CN 200710041419A CN 101314255 A CN101314255 A CN 101314255A
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- CN
- China
- Prior art keywords
- screw rod
- tackify
- waste
- steam
- exhaust steam
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/535—Screws with thread pitch varying along the longitudinal axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention relates to a waste polyester recycling device which comprises a gear case, a hopper, a charging barrel, a feeding hole heating block, a heating block, an insulating sheath, exhaust steam cylinders, exhaust steam seats, an exhaust steam hole heating block, a stand, a bracket, a wiring pipe and a screw rod, wherein, the screw rod is a tackifying screw rod which comprises a feeding section, a compressing section, a measuring section, a mixing section and an exhaust steam section; and the charging barrel is provided with at least two exhaust steam holes which are orderly provided with the exhaust steam seats and the exhaust steam cylinders. Compared with the prior art, the waste polyester recycling device can effectively increase the viscosity of polyester bottle raw materials and improve added value of products; meanwhile, the waste polyester recycling device can improve the inlet amount and yield, control the thickness of outputted stripes; and the waste polyester recycling device also has the advantages of good mixing effect, low impelling resistance, prolonged service life of the tackifying screw rod and so on.
Description
Technical field
The present invention relates to a kind of device of plastic processing, especially relate to a kind of waste and old polyester recycling equipment.
Background technology
Continuous growth along with World Economics, the high speed development of China's economic particularly, countries in the world constantly increase the demand of oil, oil price is high, China is chemical fibre producing country the biggest in the world, the rise of oil price, and chemical fibre raw material is followed rise, loss appears in domestic chemical fibre manufacturer large tracts of land, so countries in the world are all reclaimed waste material in the active research exploitation and are used for producing again.
Process from the polyester bottle slice to the chemical fibre is the field of reclaiming polyester use amount maximum.Owing to reclaim the quality problems of polyester bottle slice itself, the use that is used for the chemical fibre field at present only limits to short silk aspect, is mainly used in three aspects promptly: be used to spin three doughnut inserts; Be used to make low and middle-grade times nonwoven raw material; Be used for the low-grade chemical fabric of cotton mill weaving.Domestic feed back spins that short silk actual consumption is saturated substantially, and each producer is in low-grade race condition substantially, and feed back spins profitless substantially the saying of short silk.
In these cases, polyester bottle slice is improved the grade, increase value-added content of product, this is a problem that is placed under China's standing state.Domestic how tame producer all is used for polyester filament production in research and development with polyester bottle slice at present, promptly spins the POY long filament, but has the precedent of success or not.
Polyester bottle slice spins the POY long filament through granulation again, this be the colleague expert is consistent thinks feasible, so both can solve the problem that bottle sheet is not suitable for terylene POY filament, can save the improvement expenses of polyester POY spinning equipment again.Polyester slice after the granulation will be used to spin terylene POY filament, must improve the viscosity of bottle sheet, improves spinnability.The manufacturer that present national POY section is spun, total installation of generating capacity is not less than 1,000 ten thousand tons/year, because the high-order operation of primary POY section price, conventional variety production does not only have profit, and can lose, and stops production or half end-of-life state so each producer all is in.
With polyester bottle slice by special granulation again; reach and spin the terylene POY filament requirement; have a high potential, reach and spin terylene POY filament, an essential key issue---the viscosity that solves; if the section that polyester bottle slice is created by general comminutor; the viscosity of bottle sheet not only can not improve, and can descend on the contrary, and this phenomenon is called in chemical fibre production falls Jie; so do not make the viscosity reduction in the granulation process or viscosity is slightly increased, be the key that we study.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of waste and old polyester recycling equipment that can increase the polyester bottle slice material viscosity, improve added value of product for the deficiency that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions: a kind of waste and old polyester recycling equipment, this equipment comprises gear-box, hopper, barrel, charging aperture heat block, heat block, muff, exhaust steam tube, steam discharge seat, steam drain heat block, support, stand-off, walks spool, screw rod, it is characterized in that, described screw rod is the tackify screw rod, this tackify screw rod comprises feed zone, compression section, metering section, mixer, steam discharge section, described barrel is provided with at least two steam drains, is provided with steam discharge seat, exhaust steam tube successively on these at least two steam drains.
The feed zone of described tackify screw rod is two helicitic textures.
The mixer of described tackify screw rod is that single thread turns over the four-head helicitic texture.
The root of the steam discharge section of described tackify screw rod is directly than being 1: 0.5～0.8.
The draw ratio of described tackify screw rod is 1: 35～45.
Described barrel is provided with three steam drains, is provided with steam discharge seat, exhaust steam tube successively on these three steam drains.
Described tackify screw rod is provided with three steam discharge sections.
Described exhaust steam tube is connected with vacuum extractor.
Described gear-box is connected with the tackify screw rod, described hopper is located at the front portion of barrel, described tackify screw rod is located in the barrel, described barrel periphery is provided with heat block, the periphery of described heat block is provided with muff, described support supports barrel by stand-off, and the described spool of walking is located on the support.
Compared with prior art, waste and old polyester recycling equipment of the present invention can effectively increase the viscosity of polyester bottle slice raw material, section after the granulation can be used to spin terylene POY filament production, improve value-added content of product, the present invention simultaneously can improve inlet amount and output, control outpours the thickness of tape, and the present invention also has the advantages such as service life that good mixing effect, propelling resistance are little, prolong the tackify screw rod.
Description of drawings
Accompanying drawing is the structural representation of waste and old polyester recycling equipment of the present invention.
The specific embodiment
The invention will be further described for the contrast drawings and the specific embodiments below.
As shown in drawings, a kind of waste and old polyester recycling equipment, this equipment comprises gear-box 1, hopper 2, barrel 3, charging aperture heat block 4, heat block 5, muff 6, exhaust steam tube 7, steam discharge seat 8, steam drain heat block 9, support 10, stand-off 11, walks spool 12, screw rod 13, this screw rod 13 is the tackify screw rod, this tackify screw rod comprises feed zone, compression section, metering section, mixer, steam discharge section, described barrel 3 is provided with three steam drains, be provided with steam discharge seat 8, exhaust steam tube 7 successively on these three steam drains, exhaust steam tube 7 is connected with vacuum extractor; Described gear-box 1 is connected with the tackify screw rod, described hopper 2 is located at the front portion of barrel 3, described tackify screw rod is located in the barrel 3, described barrel 3 peripheries are provided with heat block 5, the periphery of heat block 5 is provided with muff 6, described support 10 supports barrels 3 by stand-off 11, and the described spool 12 of walking is located on the support 10.
The feed zone of described tackify screw rod is two helicitic textures, and mixer is that single thread turns over the four-head helicitic texture, and the tackify screw rod is provided with three steam discharge sections, and directly than being 1: 0.5～0.8, the draw ratio of tackify screw rod is 1: 35～45 to the root of steam discharge section.
Development principle of the present invention: by special comminutor granulation; the viscosity of polyester bottle slice is not fallen or viscosity slightly increases; theoretical foundation must be arranged; polymerization principle according to polyester: the polyester process is a reversible reaction; can produce water in the course of reaction, when the amount of water reached balance, viscosity will maintain on certain level; if disequilibrate, balance will be carried out towards favourable direction.According to this principle, the present invention's propose to draw gas theory of comminutor, the hydrone that the bottle sheet is produced in melting process is removed exactly, and reaction will develop to the direction that increases viscosity.
The present invention develops imagination: according to above-mentioned principle; the present invention proposes single screw rod three-exhauster, vacuumize the imagination of tackify comminutor; state has only a steam discharge, two steam discharge comminutors in market at present; substantially do not vacuumize comminutor; all be based on natural steam discharge formula; remove because natural exhausting method can't produce polyester bottle slice in melting process hydrone is most of; therefore be difficult to overcome Jie's problem of falling of polyester; do not reach the tackify effect; the section of producing can only be low side, low value-added, can only be used for dacron short silk production.After tackify comminutor of the present invention is developed; solved Jie's problem of falling of polyester bottle slice; and the intrinsic viscosity of producing slightly increases; its product can be used to spin terylene POY filament production; improved the added value of product of polyester regenrated slice; good market prospects, existing a plurality of producers reach the machine purpose of purchasing.
The design of the special tackify screw rod of the present invention: new type single screw three-exhauster of the present invention, the core that vacuumizes the tackify comminutor are screw rods, and whether the screw rod design is reasonable, directly influences chipping qualities.Of home make comminutor is varied, and its screw form is also varied, but does not all have viscosifying action.The tackify screw rod of the present invention's design has special shape, can play the effect of tackify.
Tackify screw rod of the present invention is made up of following components:
Feed zone, compression section, metering section, mixer, steam discharge section, secondary feeds section, secondary measurement section, secondary mixer, secondary steam discharge section, three feed zones, three metering sections, three mixers, three steam discharge sections, four feed zones, four metering sections.
The design of the several particular segment of tackify screw rod of the present invention:
1. feed zone: novel three-exhauster, vacuumize the charging of tackify comminutor to as if polyester bottle slice; because the size specification neither one unified standard of bottle sheet; the accumulation of bottle sheet is close to be lower; charging is a big problem during granulation; inlet amount is few; not only yield poorly, and the thickness control that outpours tape is brought very big difficulty, must address this problem when therefore designing.Domestic existing steam discharge screw feed section all is the single thread structure basically, screw feed section of the present invention adopts two screw thread chargings, can improve about 30% inlet amount than single thread charging, two screw thread chargings had both improved output, be convenient to outpour the thickness control of tape again, the two muscle of simultaneously two screw threads are of great benefit to the intensity that improves the feed zone place.
2. mixer: the mixing of material is an important link in granulation process, existing mixed form mainly contains back and forth the formula mixing, gear type is mixed and peg type mixes, though these hybrid mode effects are pretty good, but exist material propelling resistance when molten condition big, cause the root fracture of feed zone place easily, influence the shortcomings such as service life of steam discharge screw rod.Design of the present invention adopts single thread to turn over the four-head engage thread, mixer be the last period that the footpath is identical at the bottom of the metering section, slot in the middle of the mixer, design not only can reach mixed effect like this, and resistance is little, screw rod of the present invention has three sections mixers, is domestic initiation.
3. steam discharge section: the steam discharge section of steam discharge screw rod is a key link, and the domestic neither one standard of the form of steam discharge section is as the criterion to reach maximum steam discharge purpose, and the principle of steam discharge is that the variation by screw rod root footpath reaches the steam discharge effect.The steam discharge section root of the present invention's design is directly than being 1: 0.7 (root is directly than the ratio that is exactly root footpath with the root footpath at steam drain place of mixer), steam discharge is respond well after the test, the steam discharge section material of screw rod of the present invention advances and adopts twin-screw by becoming the propelling form, the material very first time that has guaranteed steam drain is advanced to back segment, the needed length of charging has also been shortened in such design, just shortened the length of screw rod, screw rod of the present invention has three steam discharge sections, and is beyond example domestic.
4. draw ratio: the draw ratio of all screw rods is 1: 35 to the maximum both at home and abroad, the three-exhauster of the present invention design, the draw ratio that vacuumizes the tackify screw rod are 1: 41, and difficulty was very big on long like this screw rod was made, and manufacturing firm is by research of technique, overcome all difficulties, made this screw rod.
Claims (9)
1. waste and old polyester recycling equipment, this equipment comprises gear-box, hopper, barrel, charging aperture heat block, heat block, muff, exhaust steam tube, steam discharge seat, steam drain heat block, support, stand-off, walks spool, screw rod, it is characterized in that, described screw rod is the tackify screw rod, this tackify screw rod comprises feed zone, compression section, metering section, mixer, steam discharge section, described barrel is provided with at least two steam drains, is provided with steam discharge seat, exhaust steam tube successively on these at least two steam drains.
2. a kind of waste and old polyester recycling equipment according to claim 1 is characterized in that, the feed zone of described tackify screw rod is two helicitic textures.
3. a kind of waste and old polyester recycling equipment according to claim 1 is characterized in that, the mixer of described tackify screw rod is that single thread turns over the four-head helicitic texture.
4. a kind of waste and old polyester recycling equipment according to claim 1 is characterized in that, the root of the steam discharge section of described tackify screw rod is directly than being 1: 0.5～0.8.
5. a kind of waste and old polyester recycling equipment according to claim 1 is characterized in that the draw ratio of described tackify screw rod is 1: 35～45.
6. a kind of waste and old polyester recycling equipment according to claim 1 is characterized in that described barrel is provided with three steam drains, is provided with steam discharge seat, exhaust steam tube successively on these three steam drains.
7. a kind of waste and old polyester recycling equipment according to claim 6 is characterized in that described tackify screw rod is provided with three steam discharge sections.
8. according to claim 6 or 7 described a kind of waste and old polyester recycling equipments, it is characterized in that described exhaust steam tube is connected with vacuum extractor.
9. a kind of waste and old polyester recycling equipment according to claim 1, it is characterized in that, described gear-box is connected with the tackify screw rod, described hopper is located at the front portion of barrel, described tackify screw rod is located in the barrel, and described barrel periphery is provided with heat block, and described heat block periphery is provided with muff, described support supports barrel by stand-off, and the described spool of walking is located on the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100414191A CN101314255A (en) | 2007-05-29 | 2007-05-29 | Apparatus for reutilization of waste and old polyester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100414191A CN101314255A (en) | 2007-05-29 | 2007-05-29 | Apparatus for reutilization of waste and old polyester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101314255A true CN101314255A (en) | 2008-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100414191A Pending CN101314255A (en) | 2007-05-29 | 2007-05-29 | Apparatus for reutilization of waste and old polyester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101314255A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069580A (en) * | 2010-11-17 | 2011-05-25 | 界首市双马绳网有限公司 | Novel three-section double-exhaust grinding screw |
| CN102225628A (en) * | 2011-04-15 | 2011-10-26 | 舟山市定海海信机械有限公司 | Special precision extruder for recyclable PET (polyester) |
| CN103358419A (en) * | 2013-06-28 | 2013-10-23 | 盐城市华普轻纺机械有限公司 | Polyester bottle chip recycling device and method |
| CN105821490A (en) * | 2016-04-22 | 2016-08-03 | 孔祥明 | Spinning, vacuumizing and mixing extruder of dacron waste cloth |
| CN106182692A (en) * | 2016-07-22 | 2016-12-07 | 浙江汇锋薄膜科技有限公司 | A kind of heat ray filter of plastic film extruder |
-
2007
- 2007-05-29 CN CNA2007100414191A patent/CN101314255A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069580A (en) * | 2010-11-17 | 2011-05-25 | 界首市双马绳网有限公司 | Novel three-section double-exhaust grinding screw |
| CN102225628A (en) * | 2011-04-15 | 2011-10-26 | 舟山市定海海信机械有限公司 | Special precision extruder for recyclable PET (polyester) |
| CN103358419A (en) * | 2013-06-28 | 2013-10-23 | 盐城市华普轻纺机械有限公司 | Polyester bottle chip recycling device and method |
| CN103358419B (en) * | 2013-06-28 | 2016-03-16 | 盐城市华普轻纺机械有限公司 | A kind of polyester bottle slice reclaiming apparatus and method |
| CN105821490A (en) * | 2016-04-22 | 2016-08-03 | 孔祥明 | Spinning, vacuumizing and mixing extruder of dacron waste cloth |
| CN105821490B (en) * | 2016-04-22 | 2018-11-06 | 江苏新达科技有限公司 | A kind of polyester disused cloth spinning pumping vacuum and mixing extruder |
| CN106182692A (en) * | 2016-07-22 | 2016-12-07 | 浙江汇锋薄膜科技有限公司 | A kind of heat ray filter of plastic film extruder |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081203 |