CN108917359A - A kind of continuous drying system of polyester bottle slice and its drying process - Google Patents
A kind of continuous drying system of polyester bottle slice and its drying process Download PDFInfo
- Publication number
- CN108917359A CN108917359A CN201810376195.8A CN201810376195A CN108917359A CN 108917359 A CN108917359 A CN 108917359A CN 201810376195 A CN201810376195 A CN 201810376195A CN 108917359 A CN108917359 A CN 108917359A
- Authority
- CN
- China
- Prior art keywords
- drying
- polyester bottle
- bottle slice
- inner cylinder
- magnetic separation
- Prior art date
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B1/00—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/12—Velocity of flow; Quantity of flow, e.g. by varying fan speed, by modifying cross flow area
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/003—Handling, e.g. loading or unloading arrangements for articles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/009—Alarm systems; Safety sytems, e.g. preventing fire and explosions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Polyesters Or Polycarbonates (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of continuous drying system of polyester bottle slice and its drying process, including pre-crystallizer, revolution magnetic separation predrying storehouse and the drying tower set gradually according to production line flow process；Revolution magnetic separation predrying storehouse includes outer cylinder；And it is fitted closely with outer cylinder inner face and is fully closed inner cylinder；One electric metal detection paddle is installed on the inside of the inner cylinder；The one outer end outer cylinder of inner cylinder is simultaneously connected to decelerating motor by actuator；Feed inlet and outlet is offered on its wall of the inner cylinder；The outer cylinder top and bottom are respectively arranged with inlet port and outlet port；The above-mentioned continuous drying technique of polyester bottle slice is specific as follows：The first step, pre-crystallizer are dry：Second step, the drying of revolution magnetic separation predrying storehouse and metal detection；Third step, drying tower are dry：The continuous drying system of polyester bottle slice of the invention and its drying process can preferably control raw material drying moisture content in 65 ± 5ppm, improve the spinnability and stability of as-spun fibre.
Description
Technical field
The present invention relates to a kind of polyester bottle slice drying process, and in particular to the continuous drying system of a kind of polyester bottle slice and its dry
Drying process belongs to polyester bottle slice drying technique field.
Background technique
In regenerative polyester staple fiber production, the moisture content of polyester bottle slice is a particularly significant Con trolling index；Bottle in industry
Piece is dry mostly to use vacuum drum intermittent drying technique, on a small quantity using continuous drying；Moisture content is arrived in 80ppm after drying
150ppm is fluctuated larger；Moisture content height or the unstable spinnability that will affect fiber and product items quality index, when serious very
To causing spinning that can not form；Therefore the dry technology technique of polyester bottle slice is particularly important；Existing polyester bottle slice drying line ratio
More single, drying effect is general, such as Chinese Patent Application No.：201410207622.1 disclosing a kind of with metal detector
Drying device for regenerated polyester bottle flakes, including wet bottle chips storehouse, feeder pipe, pre-crystallizer, drying tower and dry bottle chips storehouse, wet bottle
Piece feed bin connects pre-crystallizer by feeder pipe, and for pre-crystallizer by piping connection drying tower, drying tower is dry by piping connection
Bottle chips storehouse is additionally provided with stop valve, metal detector, and stop valve is arranged on feeder pipe, and metal detector is arranged in stop valve
Between pre-crystallizer；The present invention, which passes through, adds the metal detecting device realization with warning function to metal in regenerative piece of polyester bottle
Impurity on-line checking and in time isolation, it is reasonable in design, drying effect is good, can meet Regenerated Polyester Fibres production requirement, but
It is general to polyester bottle slice drying effect, and will cause and interfere with each other between pre-crystallizer and drying tower, while will cause drying
Tower pressure interior force loss.
Summary of the invention
To solve the above problems, being used the invention proposes a kind of continuous drying system of polyester bottle slice and its drying process
Material transfer full-closed structure, revolution magnetic separation predrying storehouse can be realized pre-crystallizer and drying tower is completely separated, while being connected again
Continuous drying operation, avoids drying tower energy loss, tower continuous drying using pre-crystallizer plus drying, in conjunction with configuration advantage, leads to
Technical arrangement plan optimization is crossed, can preferably control raw material drying moisture content in 65 ± 5ppm, improve as-spun fibre can
The property spun and stability；Preferably enhance every inflexible target of product.
The continuous drying system of polyester bottle slice of the invention and its drying process, including what is set gradually according to production line flow process
Pre-crystallizer, revolution magnetic separation predrying storehouse and drying tower；Revolution magnetic separation predrying storehouse includes outer cylinder；And it is tight with outer cylinder inner face
It is closely connected to close and be fully closed inner cylinder；One electric metal detection paddle is installed on the inside of the inner cylinder；One outer end of inner cylinder
Outer cylinder is simultaneously connected to decelerating motor by actuator；Feed inlet and outlet is offered on its wall of the inner cylinder；The outer cylinder top and bottom
Portion is respectively arranged with inlet port and outlet port；The feed inlet is connected to pre-crystallizer discharge port by totally enclosed conveyer；
The discharge port is connected respectively to drying tower and secondary magnetic separation barrel by two-way conveyer；The metal detection paddle is communicatively connected to
Controller.
As preferred embodiment, hot gas introducing port is installed on the conveyer.
As preferred embodiment, described its output end of two-way conveyer is separately installed with the first electromagnetism butterfly valve and second
Electromagnetism butterfly valve；The first electromagnetism butterfly valve and the second electromagnetism butterfly valve are installed with drying tower and secondary magnetic separation barrel respectively.
As preferred embodiment, the controller is electrically connected metal alarm.
Its is specific as follows for the above-mentioned continuous drying technique of polyester bottle slice：
The first step, pre-crystallizer are dry：When its drying of the pre-crystallizer makes polyester bottle slice leave pre-crystallized, moisture content reaches
For 300ppm hereinafter, eliminating 99% or more moisture, concrete technology setting is as follows：
Hot blast temperature：165±5℃；
Hot wind air quantity：72±10m3/min.m2；
Air door frequency：120±20Hz；
Residence time：25±5min；
Second step, the drying of revolution magnetic separation predrying storehouse and metal detection；Disengaging when not having to feed or discharge, on its wall of inner cylinder
Inlet port and outlet port of the material mouth far from outer cylinder make inner cylinder form a sealing structure, and detect paddle by electric metal and realize
Metal detection, when having metal, controller drives alarm equipment alarm, meanwhile, the first solenoid valve is opened, in speed reducer driving
Cylinder alignment discharge port, polyester bottle slice are sent to secondary magnetic separation barrel；When there is not metal object in it, when needing to feed to drying tower,
Speed reducer drives inner cylinder to be directed at discharge port, and second solenoid valve is opened, polyester bottle slice is sent to drying tower, when pre-crystallizer is completed
When dry, speed reducer drives inner cylinder to be directed at feed inlet, and conveyer send dry polyester bottle slice is completed into inner cylinder, while passing through heat
Conductance entrance imports heating heat, and the inlet port and outlet port by feed inlet and outlet far from outer cylinder, completes pre-crystallizer and drying
Tower is completely separated, while carrying out continuous drying operation again；
Third step, drying tower are dry：75% or more of polyester bottle slice residual moisture is removed in the drying tower drying process；It has
Body technology setting is as follows：
Press empty dew-point temperature：-（60±10）℃；
Hot blast temperature： 160±5℃；
Hot wind air quantity： 3.5±0.5 m3/min.m2；
Residence time：4.5±0.5Hr.
As preferred embodiment, described its hot blast temperature of hot gas introducing port is 165 ± 5 DEG C.
As preferred embodiment, the polyester bottle slice is with a thickness of 18 ± 4cm.
The present invention compared with prior art, the continuous drying system of polyester bottle slice of the invention and its drying process, first,
The stable moisture content of the raw material in 65 ± 5ppm is ideal in bottle piece feed back spinning and is difficult the technology accomplished, this
The stability of spinning is significantly improved, the continuity of post-processing is improved；Second, the optimization of product all technical is mentioned
Height and stabilizing effect are significant；Especially this inflexible target of elasticity of compression response rate, it is more obvious；Third, device it is continuous
The operation of property, stability, reduces manufacturing cost.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Specific embodiment
The continuous drying system of polyester bottle slice as shown in Figure 1 and its drying process, including successively set according to production line flow process
Pre-crystallizer 1, revolution magnetic separation predrying storehouse and the drying tower 2 set；Revolution magnetic separation predrying storehouse includes outer cylinder 3；And with it is outer
Cylinder inner face fits closely and is fully closed inner cylinder 4；One electric metal detection paddle 5 is installed on the inside of the inner cylinder 4；In described
4 one outer end outer cylinders of cylinder are simultaneously connected to decelerating motor 6 by actuator；Feed inlet and outlet 7 is offered on described its wall of inner cylinder 4；Institute
It states 3 top of outer cylinder and bottom is respectively arranged with feed inlet 8 and discharge port 9；The feed inlet 8 is connected by totally enclosed conveyer 10
It is connected to 1 discharge port of pre-crystallizer；The discharge port 9 is connected respectively to drying tower 2 and secondary magnetic separation barrel by two-way conveyer 11
12；The metal detection paddle 5 is communicatively connected to controller（It is not shown）.
In another embodiment, hot gas introducing port 13 is installed on the conveyer 10.
In another embodiment, described two-way its output end of conveyer 11 is separately installed with the first electromagnetism butterfly valve 15 and the second electricity
Magnetic butterfly valve 16；The first electromagnetism butterfly valve 15 and the second electromagnetism butterfly valve 16 are installed with drying tower 12 and secondary magnetic separation barrel 13 respectively.
In another embodiment, the controller is electrically connected metal alarm（It is not shown）.
Its is specific as follows for the above-mentioned continuous drying technique of polyester bottle slice：
The first step, pre-crystallizer are dry：When its drying of the pre-crystallizer makes polyester bottle slice leave pre-crystallized, moisture content reaches
For 300ppm hereinafter, eliminating 99% or more moisture, concrete technology setting is as follows：
Hot blast temperature：165±5℃；
Hot wind air quantity：72±10m3/min.m2；
Air door frequency：120±20Hz；
Residence time：25±5min；
Second step, the drying of revolution magnetic separation predrying storehouse and metal detection；Disengaging when not having to feed or discharge, on its wall of inner cylinder
Inlet port and outlet port of the material mouth far from outer cylinder make inner cylinder form a sealing structure, and detect paddle by electric metal and realize
Metal detection, when having metal, controller drives alarm equipment alarm, meanwhile, the first solenoid valve is opened, in speed reducer driving
Cylinder alignment discharge port, polyester bottle slice are sent to secondary magnetic separation barrel；When there is not metal object in it, when needing to feed to drying tower,
Speed reducer drives inner cylinder to be directed at discharge port, and second solenoid valve is opened, polyester bottle slice is sent to drying tower, when pre-crystallizer is completed
When dry, speed reducer drives inner cylinder to be directed at feed inlet, and conveyer send dry polyester bottle slice is completed into inner cylinder, while passing through heat
Conductance entrance imports heating heat, and the inlet port and outlet port by feed inlet and outlet far from outer cylinder, completes pre-crystallizer and drying
Tower is completely separated, while carrying out continuous drying operation again；
Third step, drying tower are dry：75% or more of polyester bottle slice residual moisture is removed in the drying tower drying process；It has
Body technology setting is as follows：
Press empty dew-point temperature：-（60±10）℃；
Hot blast temperature： 160±5℃；
Hot wind air quantity： 3.5±0.5 m3/min.m2；
Residence time：4.5±0.5Hr.
In another embodiment, described its hot blast temperature of hot gas introducing port is 165 ± 5 DEG C.
In another embodiment, the polyester bottle slice is with a thickness of 18 ± 4cm.
Above-described embodiment is only better embodiment of the invention, therefore all according to structure described in present patent application range
It makes, the equivalent change or modification that feature and principle are done, is included in the scope of the patent application of the present invention.
Claims (7)
1. a kind of continuous drying system of polyester bottle slice, it is characterised in that：It is pre-crystallized including being set gradually according to production line flow process
Device, revolution magnetic separation predrying storehouse and drying tower；Revolution magnetic separation predrying storehouse includes outer cylinder；And it is fitted closely with outer cylinder inner face
It and is fully closed inner cylinder；One electric metal detection paddle is installed on the inside of the inner cylinder；The one outer end outer cylinder of inner cylinder is simultaneously
Decelerating motor is connected to by actuator；Feed inlet and outlet is offered on its wall of the inner cylinder；The outer cylinder top and bottom difference
It is provided with inlet port and outlet port；The feed inlet is connected to pre-crystallizer discharge port by totally enclosed conveyer；It is described go out
Material mouth is connected respectively to drying tower and secondary magnetic separation barrel by two-way conveyer；The metal detection paddle is communicatively connected to control
Device.
2. the continuous drying system of polyester bottle slice according to claim 1, it is characterised in that：Heat is installed on the conveyer
Conductance entrance.
3. the continuous drying system of polyester bottle slice according to claim 1, it is characterised in that：Its output of the two-way conveyer
End is separately installed with the first electromagnetism butterfly valve and the second electromagnetism butterfly valve；The first electromagnetism butterfly valve and the second electromagnetism butterfly valve respectively with it is dry
Dry tower and the installation of secondary magnetic separation barrel.
4. the continuous drying system of polyester bottle slice according to claim 1, it is characterised in that：The controller is electrically connected metal
Alarm.
5. a kind of continuous drying technique of polyester bottle slice, which is characterized in that the technique is specific as follows：
The first step, pre-crystallizer are dry：When its drying of the pre-crystallizer makes polyester bottle slice leave pre-crystallized, moisture content reaches
For 300ppm hereinafter, eliminating 99% or more moisture, concrete technology setting is as follows：
Hot blast temperature：165±5℃；
Hot wind air quantity：72±10m3/min.m2；
Air door frequency：120±20Hz；
Residence time：25±5min；
Second step, the drying of revolution magnetic separation predrying storehouse and metal detection；Disengaging when not having to feed or discharge, on its wall of inner cylinder
Inlet port and outlet port of the material mouth far from outer cylinder make inner cylinder form a sealing structure, and detect paddle by electric metal and realize
Metal detection, when having metal, controller drives alarm equipment alarm, meanwhile, the first solenoid valve is opened, in speed reducer driving
Cylinder alignment discharge port, polyester bottle slice are sent to secondary magnetic separation barrel；When there is not metal object in it, when needing to feed to drying tower,
Speed reducer drives inner cylinder to be directed at discharge port, and second solenoid valve is opened, polyester bottle slice is sent to drying tower, when pre-crystallizer is completed
When dry, speed reducer drives inner cylinder to be directed at feed inlet, and conveyer send dry polyester bottle slice is completed into inner cylinder, while passing through heat
Conductance entrance imports heating heat, and the inlet port and outlet port by feed inlet and outlet far from outer cylinder, completes pre-crystallizer and drying
Tower is completely separated, while carrying out continuous drying operation again；
Third step, drying tower are dry：75% or more of polyester bottle slice residual moisture is removed in the drying tower drying process；It has
Body technology setting is as follows：
Press empty dew-point temperature：-（60±10）℃；
Hot blast temperature： 160±5℃；
Hot wind air quantity： 3.5±0.5 m3/min.m2；
Residence time：4.5±0.5Hr.
6. the continuous drying technique of polyester bottle slice according to claim 5, which is characterized in that described its hot wind of hot gas introducing port
Temperature is 165 ± 5 DEG C.
7. the continuous drying technique of polyester bottle slice according to claim 5, which is characterized in that the polyester bottle slice is with a thickness of 18
±4cm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810376195.8A CN108917359A (en) | 2018-04-25 | 2018-04-25 | A kind of continuous drying system of polyester bottle slice and its drying process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810376195.8A CN108917359A (en) | 2018-04-25 | 2018-04-25 | A kind of continuous drying system of polyester bottle slice and its drying process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108917359A true CN108917359A (en) | 2018-11-30 |
Family
ID=64403172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810376195.8A Pending CN108917359A (en) | 2018-04-25 | 2018-04-25 | A kind of continuous drying system of polyester bottle slice and its drying process |
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| CN (1) | CN108917359A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2099854C1 (en) * | 1995-11-15 | 1997-12-20 | Московский энергетический институт (Технический университет) | Gyromagnetic shf crossmultiplier |
| CN201873780U (en) * | 2010-10-13 | 2011-06-22 | 海盐海利环保纤维有限公司 | Drying device for regenerated polyester bottle flakes |
| CN103433496A (en) * | 2013-06-25 | 2013-12-11 | 吉林省华兴粉末冶金科技有限公司 | Preparation system of iron powder for powder metallurgy |
| CN203844037U (en) * | 2014-05-16 | 2014-09-24 | 江苏菲霖纤维科技有限公司 | Recycled polyester bottle chip drying device with metal detector |
| CN206501307U (en) * | 2017-01-22 | 2017-09-19 | 保定广顺再生利用股份有限公司 | Polyester bottle slice drying device |
| CN107635693A (en) * | 2015-06-11 | 2018-01-26 | 新东工业株式会社 | The renovation process of molding sand and again generating apparatus |
-
2018
- 2018-04-25 CN CN201810376195.8A patent/CN108917359A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2099854C1 (en) * | 1995-11-15 | 1997-12-20 | Московский энергетический институт (Технический университет) | Gyromagnetic shf crossmultiplier |
| CN201873780U (en) * | 2010-10-13 | 2011-06-22 | 海盐海利环保纤维有限公司 | Drying device for regenerated polyester bottle flakes |
| CN103433496A (en) * | 2013-06-25 | 2013-12-11 | 吉林省华兴粉末冶金科技有限公司 | Preparation system of iron powder for powder metallurgy |
| CN203844037U (en) * | 2014-05-16 | 2014-09-24 | 江苏菲霖纤维科技有限公司 | Recycled polyester bottle chip drying device with metal detector |
| CN107635693A (en) * | 2015-06-11 | 2018-01-26 | 新东工业株式会社 | The renovation process of molding sand and again generating apparatus |
| CN206501307U (en) * | 2017-01-22 | 2017-09-19 | 保定广顺再生利用股份有限公司 | Polyester bottle slice drying device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181130 |
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| RJ01 | Rejection of invention patent application after publication |