CN102225628A - Special precision extruder for recyclable PET (polyester) - Google Patents
Special precision extruder for recyclable PET (polyester) Download PDFInfo
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- CN102225628A CN102225628A CN2011100938899A CN201110093889A CN102225628A CN 102225628 A CN102225628 A CN 102225628A CN 2011100938899 A CN2011100938899 A CN 2011100938899A CN 201110093889 A CN201110093889 A CN 201110093889A CN 102225628 A CN102225628 A CN 102225628A
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- screw rod
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- ring shaped
- shaped heating
- heat conduction
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Abstract
The invention discloses a special precision extruder for a recyclable PET (polyester). The precision extruder comprises a pulley, a gearbox, a feed port, a screw rod, an annular heating device, a heat-conducting sealed pipe, an insulating cover, a discharging device and a shell; a gearbox input shaft is connected with the pulley, a gearbox output shaft is connected with the screw rod, a feed port is arranged close to the gearbox, the heat-conducting sealed pipe is mounted at external of the screw rod, and a plurality of annular heating devices are sleeved at the external of the heat-conducting sealed pipe, the insulating cover encapsulates the whole screw rod part with the annular heating device, the discharging device is mounted below the screw rod, and the shell is mounted at the external of the whole apparatus with the effect of supporting and fixing the structure. Due to a certain angle of pitch of the screw rod, a certain inner extrusion force can be generated in the device; since the diameter of the screw is small and the annular heating devices are orderly distributed, the produced recyclable granules are good in quality, stable in chemical property and wide in market place.
Description
Technical field
The present invention relates to a kind of screw extruder, especially a kind of special-purpose Precise Extrusion of regenerative PET that is used for belongs to the plant equipment field.
Background technology
Bottled water consumption figure in the world's increases continuously fast in recent years, increases to about in the of 1,000,000,000 tons in 2002.China's beverage market scale reaches 25,000 ten thousand tons approximately, if with 60% PET packing employing rate and the PET bottle standard measuring and calculating of 1000ml, produce the only above PET bottle demand of over ten billion to I haven't seen you for ages.The rapid growth of PET bottle also provides the market space widely for the recycling equipment of waste PET bottle simultaneously, this equipment will give up the PET bottle through separation, broken, washing and dry the processing carry out granulation again, the most important thing is screw extruder in this complete equipment, its property relationship is to the quality of regenerated granule quality, PET screw extruder in the market, since the bad and unreasonable structure of temperature control, the shortcoming that exists regenerated granule to have bubble and chemical property to change to some extent.
Summary of the invention
The purpose of this invention is to provide the special-purpose Precise Extrusion of a kind of regenerative PET.
The problem to be solved in the present invention is the unsettled deficiency of regenerated granule quality that existing PET extruder is produced.
For realizing purpose of the present invention, the technical solution used in the present invention is:
The special-purpose Precise Extrusion of regenerative PET of the present invention, comprise belt pulley, gear-box, charging aperture, screw rod, ring shaped heating mechanism, the heat conduction sealed tube, stay-warm case, drawing mechanism and shell, gearbox input shaft is connected with belt pulley, gearbox output shaft is connected with screw rod, be provided with charging aperture near the gear-box place, the screw rod outside is equipped with the heat conduction sealed tube, heat conduction sealed tube outside is with a plurality of ring shaped heating mechanisms, stay-warm case is wrapped in the whole screw portion that has ring shaped heating mechanism, drawing mechanism is installed in the below of screw rod, shell is installed in the outside of entire equipment, and it is fixing to play support and structure.
The screw rod material adopts 38CrMoAlA, surfaces nitrided processing, nitrogenize hardness HV900～1050; The spiral angle of screw rod is 15 °-17 °, and the thrust angle is that 85 ° of-90 ° of diameters are 130-135mm; Ring shaped heating mechanism respectively is equipped with 3-4 in heat conduction sealed tube both sides, the middle part is empty does not install, and can play the heating cushioning effect like this; Ring shaped heating mechanism is the ceramic material heater; Effective forwardtransfer signal worm L/D ratio of screw rod is 28:1.
Advantage of the present invention is: after this device installs, because screw rod has certain angle of pitch, can produce certain interior extruding force, and because screw diameter is less and the orderly distribution of ring shaped heating mechanism, make the regenerated granule quality of producing good, stable chemical performance should have the vast market space.
Description of drawings
Fig. 1 is the front view of the special-purpose Precise Extrusion of regenerative PET of the present invention;
Fig. 2 is the right view of the special-purpose Precise Extrusion of regenerative PET of the present invention;
Among the figure: 1, belt pulley 2, gear-box 3, charging aperture 4, screw rod 5, ring shaped heating mechanism 6, heat conduction sealed tube 7, stay-warm case 8, drawing mechanism 9, shell.
The specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
As shown in the figure, the special-purpose Precise Extrusion of regenerative PET of the present invention, comprise belt pulley 1, gear-box 2, charging aperture 3, screw rod 4, ring shaped heating mechanism 5, heat conduction sealed tube 6, stay-warm case 7, drawing mechanism 8 and shell 9, gear-box 2 power shafts are connected with belt pulley 1, gear-box 2 output shafts are connected with screw rod 4, be provided with charging aperture 3 near gear-box 2 places, screw rod 4 outsides are equipped with heat conduction sealed tube 6, heat conduction sealed tube 6 outsides are with a plurality of ring shaped heating mechanisms 5, stay-warm case 7 is wrapped in whole screw rod 4 parts that have ring shaped heating mechanism 5, drawing mechanism 8 is installed in the below of screw rod 4, and shell 9 is installed in the outside of entire equipment, and it is fixing to play support and structure.
Screw rod 4 materials adopt 38CrMoAlA, surfaces nitrided processing, nitrogenize hardness HV900～1050; The spiral angle of screw rod 4 is 15 °, and the thrust angle is that 90 ° of diameters are 135mm; Ring shaped heating mechanism 5 respectively is equipped with 4 in heat conduction sealed tube 6 both sides, and the middle part is empty does not install, and can play the heating cushioning effect like this; Ring shaped heating mechanism 5 is the ceramic material heater; Effective forwardtransfer signal worm L/D ratio of screw rod 4 is 28:1.
The operation principle of the special-purpose Precise Extrusion of regenerative PET of the present invention is: after entire equipment installs, after the waste PET plastics clean up and afterwards enter the seal operation space of screw rod 4 and heat conduction sealed tube 6 formations from charging aperture 3, rotation along with screw rod 4, the waste PET plastics melt gradually under the effect of ring shaped heating mechanism 5, when screw rod 4 rotating speeds are 45 rpm, the PET plastics temperature that ring shaped heating mechanism 5 is extruded drawing mechanism 8 is controlled in 200 degree, because this equipment screw rod 4 has spiral angle and diameter to have only 135mm, therefore can make the PET melt temperature of heat conductivility difference more even, produce qualified regenerated granule.
Claims (5)
1. the special-purpose Precise Extrusion of regenerative PET, comprise belt pulley (1), gear-box (2), charging aperture (3), screw rod (4), ring shaped heating mechanism (5), heat conduction sealed tube (6), stay-warm case (7), drawing mechanism (8) and shell (9), gear-box (2) power shaft is connected with belt pulley (1), gear-box (2) output shaft is connected with screw rod (4), locating to be provided with charging aperture (3) near gear-box (2), it is characterized in that: screw rod (4) outside is equipped with heat conduction sealed tube (6), heat conduction sealed tube (6) outside is with a plurality of ring shaped heating mechanisms (5), stay-warm case (7) is wrapped in whole screw rod (4) part that has ring shaped heating mechanism (5), drawing mechanism (8) is installed in the below of screw rod (4), shell (9) is installed in the outside of entire equipment, and it is fixing to play support and structure.
2. the special-purpose Precise Extrusion of regenerative PET according to claim 1, it is characterized in that: described screw rod (4) material adopts 38CrMoAlA, surfaces nitrided processing, nitrogenize hardness HV900～1050; The spiral angle of screw rod (4) is 15 °-17 °, and the thrust angle is that 85 ° of-90 ° of diameters are 130-135mm.
3. the special-purpose Precise Extrusion of regenerative PET according to claim 1, it is characterized in that: described ring shaped heating mechanism (5) respectively is equipped with 3-4 in heat conduction sealed tube (6) both sides, the middle part is empty does not install, and can play the heating cushioning effect like this.
4. the special-purpose Precise Extrusion of regenerative PET according to claim 1, it is characterized in that: described ring shaped heating mechanism (5) is the ceramic material heater.
5. the special-purpose Precise Extrusion of regenerative PET according to claim 1, it is characterized in that: effective forwardtransfer signal worm L/D ratio of described screw rod (4) is 28:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100938899A CN102225628A (en) | 2011-04-15 | 2011-04-15 | Special precision extruder for recyclable PET (polyester) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100938899A CN102225628A (en) | 2011-04-15 | 2011-04-15 | Special precision extruder for recyclable PET (polyester) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102225628A true CN102225628A (en) | 2011-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100938899A Pending CN102225628A (en) | 2011-04-15 | 2011-04-15 | Special precision extruder for recyclable PET (polyester) |
Country Status (1)
| Country | Link |
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| CN (1) | CN102225628A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658665A (en) * | 2012-06-03 | 2012-09-12 | 朱学桂 | Solid carbon rod forming machine |
Citations (9)
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|---|---|---|---|---|
| US4797237A (en) * | 1987-05-04 | 1989-01-10 | Floyd V. Hammer | Method for recycling a beverage container |
| CN2485126Y (en) * | 2001-06-14 | 2002-04-10 | 徐凌秀 | Single screw-rod nanoscale plastic extruder |
| CN2818122Y (en) * | 2005-06-08 | 2006-09-20 | 闫俊龙 | Special extruder of thermoplastic elastomer |
| JP2007268725A (en) * | 2006-03-30 | 2007-10-18 | Hagihara Industries Inc | Screw extruder for thermoplastic material |
| US20080067719A1 (en) * | 2006-08-23 | 2008-03-20 | Christian Schlummer | Method for the manufacture of a molding composition |
| DE102008017138A1 (en) * | 2007-04-13 | 2008-10-16 | Engel Austria Gmbh | Plastic melt producing device for use in clean room, has heating elements arranged at lateral surface of cylinder for heating melt, where heating elements are covered by casing, and insulator separated from casing |
| CN101314255A (en) * | 2007-05-29 | 2008-12-03 | 上海东缙纺织科技有限公司 | Apparatus for reutilization of waste and old polyester |
| CN201597148U (en) * | 2009-12-14 | 2010-10-06 | 浙江俊尔新材料有限公司 | Injection molding equipment used for molding long fiber reinforced plastics |
| CN202021798U (en) * | 2011-04-15 | 2011-11-02 | 舟山市定海海信机械有限公司 | Precision extruder special for renewable PET (polyethylene glycol terephthalate) |
-
2011
- 2011-04-15 CN CN2011100938899A patent/CN102225628A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4797237A (en) * | 1987-05-04 | 1989-01-10 | Floyd V. Hammer | Method for recycling a beverage container |
| CN2485126Y (en) * | 2001-06-14 | 2002-04-10 | 徐凌秀 | Single screw-rod nanoscale plastic extruder |
| CN2818122Y (en) * | 2005-06-08 | 2006-09-20 | 闫俊龙 | Special extruder of thermoplastic elastomer |
| JP2007268725A (en) * | 2006-03-30 | 2007-10-18 | Hagihara Industries Inc | Screw extruder for thermoplastic material |
| US20080067719A1 (en) * | 2006-08-23 | 2008-03-20 | Christian Schlummer | Method for the manufacture of a molding composition |
| DE102008017138A1 (en) * | 2007-04-13 | 2008-10-16 | Engel Austria Gmbh | Plastic melt producing device for use in clean room, has heating elements arranged at lateral surface of cylinder for heating melt, where heating elements are covered by casing, and insulator separated from casing |
| CN101314255A (en) * | 2007-05-29 | 2008-12-03 | 上海东缙纺织科技有限公司 | Apparatus for reutilization of waste and old polyester |
| CN201597148U (en) * | 2009-12-14 | 2010-10-06 | 浙江俊尔新材料有限公司 | Injection molding equipment used for molding long fiber reinforced plastics |
| CN202021798U (en) * | 2011-04-15 | 2011-11-02 | 舟山市定海海信机械有限公司 | Precision extruder special for renewable PET (polyethylene glycol terephthalate) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658665A (en) * | 2012-06-03 | 2012-09-12 | 朱学桂 | Solid carbon rod forming machine |
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Application publication date: 20111026 |