CN203360356U - Recovery device of waste polyester bottle chip - Google Patents
Recovery device of waste polyester bottle chip Download PDFInfo
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- CN203360356U CN203360356U CN2013204198807U CN201320419880U CN203360356U CN 203360356 U CN203360356 U CN 203360356U CN 2013204198807 U CN2013204198807 U CN 2013204198807U CN 201320419880 U CN201320419880 U CN 201320419880U CN 203360356 U CN203360356 U CN 203360356U
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- reaction device
- alcoholysis reaction
- communicated
- alcoholysis
- washing unit
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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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- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The utility model provides a recovery device of a waste polyester bottle chip, which comprises a washing device, a lifting device, a crusher, a first delivery pump and a second alcoholysis reactor which are communicated sequentially along a production line, wherein the second alcoholysis reactor is communicated with a glycol liquid pipeline; a heating device is arranged in the second alcoholysis reactor; the top of the second alcoholysis reactor is communicated with the washing device by a pipeline; in order to shorten the reaction time; a first alcoholysis reactor can be additionally arranged between the crusher and the second alcoholysis reactor; a heat source and a reactant of the first alcoholysis reactor are provided by the second alcoholysis reactor; and the second alcoholysis reactor can provide a heat source and a washing agent for the washing device. The recovery device has the advantages that equipment cannot be corroded; the quantity of waste liquid is less; the recovery cost is lowered; heat energy and glycol are sufficiently and reasonably utilized; and the equipment and a flow are simplified.
Description
Technical field
The utility model belongs to high molecule plastic salvage material apparatus field, especially a kind of recovery of waste and old polyester bottle sheet.
Background technology
The recycling of polyester bottles is part and parcel very in high molecule plastic MAT'L recycling technical field.The recycling of polyester bottles mainly comprises the wash phase in early stage and follow-up recovery treatment stage.
At wash phase, prior art is removed oil stains such as the greasy dirt on polyester bottle slice surface, paint by boiling material alkali pond mostly, and have shortcomings: 1) solvent corrosion is strong, to the well damage of the apparatus body that boils the material machine; 2) not easy to be recycled for the alkali lye of clean-out operation, can only enter sewage lagoon, not only caused the waste of resource, and, serious environment pollution.
In recovery treatment stage, the PET bottle recovery technology is divided into physics recovery technology and the large class of chemical recovery technology two.It is by the waste polyester heating and melting that physics reclaims, and after purifying, by the screw extruder extrusion moulding, still, due to the polyester reclaimed, under the high temperature inflation stretches, some polyester molecules decompose and generate acetaldehyde, therefore, reclaims like this polyester bottle slice use of can only demoting.Chemical recovery method is, by chemical reaction, waste polyester is depolymerized to low molecular compound, can be again as polyester raw material after alcoholysis product is purified, or make other products, and the quality that obtains product is high.Recently developed the technology that some " bottles " arrive " bottle ", " bottle " arrives the technology of " fiber ", but these " bottles " to " bottle ", " bottle " are when adopting in the technology of " fiber " ethylene glycol to carry out alcoholysis reaction, because the fusing point of polyester bottle slice is 270 ℃, therefore, the temperature of alcoholysis reaction device is generally 270 ℃ of left and right, remaining ethylene glycol steam (boiling point of ethylene glycol is 197.3 ℃) reclaims, while again utilizing, need reheat intensification, energy wastage is large.And the reagent that the clean-out system that wash phase adopts is used from recovery treatment stage is different, make that whole clean and reuse process steps is loaded down with trivial details, the complex structural designs of equipment.
Summary of the invention
The utility model aims to provide a kind of retrieving arrangement of waste and old polyester bottle sheet, and this retrieving arrangement can solve in prior art that energy dissipation is serious, the baroque problem of retrieving arrangement.
A kind of retrieving arrangement I of waste and old polyester bottle sheet, comprise the washing unit, lifting gear, crusher, the first transferpump and the second alcoholysis reaction device that are communicated with along the production line order, the second alcoholysis reaction device top is communicated with the ethylene glycol fluid pipeline, be provided with heating unit in the second alcoholysis reaction device, and the top of the second alcoholysis reaction device is communicated with washing unit by a pipeline.
In the course of the work, in washing unit, adopt ethylene glycol steam unnecessary in the second alcoholysis reaction device to cut into slices and carry out partial alcoholysis the bottle sheet, realization is cleaned bottle sheet slice surface, bottle sheet section after cleaning is delivered in crusher by lifting gear, enters the second alcoholysis reaction device finally by mistake the first transferpump and carries out thorough melting; In the second alcoholysis reaction device, ethylene glycol solution, under the heat effect of heating unit, becomes ethylene glycol steam gradually, and ethylene glycol steam and polyester bottle slice carry out alcoholysis reaction; Simultaneously, in the second alcoholysis reaction device, unnecessary ethylene glycol steam passes in washing unit again, as thermal source and the irrigation source of washing unit.
Advantage of the present utility model has: (1) adopts ethylene glycol steam to be cleaned polyester bottle slice, can etching apparatus, and the work-ing life of having improved equipment; (2) waste liquid amount after washing unit is few, reduces and pollutes; The excessive ethylene glycol steam of (3) second alcoholysis reaction devices passes in washing unit, as washing unit thermal source and irrigation source, takes full advantage of heat energy and ethylene glycol; (5) utilizing the medium of ethylene glycol as main transferring heat heating bottle sheet section, is again that the reactant of alcoholysis reaction is participated in reaction, has reduced the quantity of heating installation and reactant supply equipment, has also simplified corresponding flow process, has improved working efficiency simultaneously simultaneously.
A kind of retrieving arrangement II of waste and old polyester bottle sheet, comprise the washing unit be communicated with along the production line order, lifting gear, crusher, the first alcoholysis reaction device, the first transferpump and the second alcoholysis reaction device, the second alcoholysis reaction device top is communicated with the ethylene glycol fluid pipeline, be provided with heating unit in the second alcoholysis reaction device, the top of the second alcoholysis reaction device is communicated with washing unit by a pipeline, the top of the second alcoholysis reaction device is communicated with refrigerating unit by another pipeline, refrigerating unit is communicated with the first alcoholysis reaction device again, and, be provided with whipping appts in the first alcoholysis reaction device.
The difference of retrieving arrangement II and retrieving arrangement I is: increased by the first alcoholysis reaction device between pulverizer and the first transferpump, in course of normal operation, the temperature of the first alcoholysis reaction device is 150 ~ 185 ℃, , reactant in the first alcoholysis reaction device is high temperature glycol liquid, in the retrieving arrangement II, reactant in the first alcoholysis reaction device and heat by the unnecessary ethylene glycol of the second alcoholysis reaction device through the cooling supply of apparatus for supercooling, therefore, bottle sheet section in the first alcoholysis reaction device with the ethylene glycol liquid mixing, by complete wetting, and, under the high-speed stirring effect of whipping appts, the section of large-size is broken, the mixing species solids size homogeneous finally obtained and less, greatly reduced the pure decompression force of the second alcoholysis reaction device.
Retrieving arrangement I of the present utility model can be done following further improvement:
1) bottom of washing unit and lifting gear all is communicated with refining plant by the second transferpump, refining plant is communicated with washing unit, lifting gear respectively by the 3rd transferpump again, the main component of the soiling solution body that washing unit and lifting gear produce is ethylene glycol and low-molecular-weight carboxylate, through the second transferpump, these are sent into to refining plant and reclaim ethylene glycol wherein, the ethylene glycol reclaimed is transported in washing unit, lifting gear again, can realize the recycle of ethylene glycol.
2) bottom of washing unit also is communicated with the monoethylene glycol steam-pipe.When the unnecessary ethylene glycol steam of the second alcoholysis reaction device is not enough to meet the cleaning that the bottle sheet is cut into slices, can pass through the agent of ethylene glycol steam-pipe additional clean.
3) be provided with whipping appts in the second alcoholysis reaction device, and whipping appts is preferably paddle agitator, stirring velocity is slower, and blade area is large, can make thick liquid reach mixed uniformly effect, can avoid again liquid to splash everywhere and bring the cleaning problem.
4) the second alcoholysis reaction device preferably is connected with the bottom of washing unit, can improve the utilization ratio of ethylene glycol steam in cleaning tower.
5) heating unit of the second alcoholysis reaction device can adopt the inner coil pipe that heating agent is equipped with in inside to realize.
6) outside of the second alcoholysis reaction device is provided with attemperator, in specific implementation process, often by realize insulation in reactor arranged outside insulation jacket.
7) bottom of the second alcoholysis reaction device is communicated with the 4th transferpump, filtration unit successively, and filtration unit can remove by filter remaining impurity; In specific implementation process, the 4th transferpump adopts toothed gear pump more.
Retrieving arrangement II of the present utility model can be done following improvement:
1) bottom of washing unit and lifting gear all is communicated with refining plant by the second transferpump, refining plant is communicated with washing unit, lifting gear, the first alcoholysis reaction device respectively by the 3rd transferpump again, not only ethylene glycol obtains recycle, and, through refining plant, purify the ethylene glycol liquid obtained and can jointly for the first alcoholysis reaction device, provide sufficient reactant through the cooling ethylene glycol liquid obtained of apparatus for supercooling.
2) because the temperature that reclaims the ethylene glycol liquid obtained through refining plant is lower, if directly pass in washing unit, lifting gear, the first alcoholysis reaction device, cleaning and alcoholysis effect are poor, therefore, the exit side of the 3rd transferpump is provided with heating unit, and heating unit is communicated with washing unit, lifting gear, the first alcoholysis reaction device respectively again.
3) whipping appts of the first alcoholysis reaction device is preferably the profile of tooth agitator, speed, and the shearing force of profile of tooth blade is large, can fast large-sized polyester bottle slice be smashed.
4) the first alcoholysis reaction device is provided with attemperator outward, in specific implementation process, often by realize insulation in reactor arranged outside insulation jacket.
5) can establish heating unit in the first alcoholysis reaction device, in specific implementation process, heating unit can adopt the inner coil pipe that heating agent is equipped with in inside to realize.
In specific implementation process, refining plant can adopt the pressure filter mode that gac+gac carclazyte is filter material or adopt active carbon spheres fixed bed mode, and these structures are structure known in this field, at this, do not do and repeat.
The accompanying drawing explanation
The structure diagram that Fig. 1 is retrieving arrangement I of the present utility model;
The structure diagram that Fig. 2 is retrieving arrangement II of the present utility model.
Embodiment
Now illustrate by reference to the accompanying drawings embodiment of the present utility model:
As shown in Figure 1, a kind of retrieving arrangement I of waste and old polyester bottle sheet, comprise the washing unit 1, lifting gear 2, crusher 3, the first transferpump 4 and the second alcoholysis reaction device 5 that are communicated with along the production line order, the second alcoholysis reaction device 5 tops are communicated with ethylene glycol fluid pipeline 7, be provided with heating unit 6 in the second alcoholysis reaction device 5, and the top of the second alcoholysis reaction device 5 is communicated with washing unit 1 by a pipeline 11.
In the course of the work, in washing unit 1, adopt the interior unnecessary ethylene glycol steam of the second alcoholysis reaction device 5 to cut into slices and carry out partial alcoholysis the bottle sheet, realization is cleaned bottle sheet slice surface, bottle sheet section after cleaning is delivered in crusher 3 by lifting gear 2, enters the second alcoholysis reaction device 5 finally by mistake the first transferpump 4 and carries out thorough melting; In the second alcoholysis reaction device 5, ethylene glycol solution, under the heat effect of heating unit 6, becomes ethylene glycol steam gradually, and ethylene glycol steam and polyester bottle slice carry out alcoholysis reaction; Simultaneously, in the second alcoholysis reaction device, unnecessary ethylene glycol steam passes in washing unit 1 again, as thermal source and the irrigation source of washing unit 1.
Advantage of the present utility model has: (1) adopts ethylene glycol steam to be cleaned polyester bottle slice, can etching apparatus, and the work-ing life of having improved equipment; (2) waste liquid amount after washing unit 1 is few, reduces and pollutes; The excessive ethylene glycol steam of (3) second alcoholysis reaction devices 5 passes in washing unit 1, as washing unit thermal source and irrigation source, takes full advantage of heat energy and ethylene glycol; (5) utilizing the medium of ethylene glycol as main transferring heat heating bottle sheet section, is again that the reactant of alcoholysis reaction is participated in reaction, has reduced the quantity of heating installation and reactant supply equipment, has also simplified corresponding flow process, has improved working efficiency simultaneously simultaneously.
As shown in Figure 2, a kind of retrieving arrangement II of waste and old polyester bottle sheet, the retrieving arrangement II is from the different of retrieving arrangement I: between crusher 3 and the first transferpump 4, set up the first alcoholysis reaction device 8, crusher 3, the first alcoholysis reaction device 8, the first transferpump 4 threes sequentially are communicated with, the top of the second alcoholysis reaction device 5 is communicated with refrigerating unit 12 by another pipeline 11, refrigerating unit 12 is communicated with the first alcoholysis reaction device 8 again, and, be provided with whipping appts 9 in the first alcoholysis reaction device 8.
In course of normal operation, the temperature of the first alcoholysis reaction device 8 is 150 ~ 185 ℃, , reactant in the first alcoholysis reaction device 8 is high temperature glycol liquid, in the retrieving arrangement II, reactant in the first alcoholysis reaction device 8 and heat by the unnecessary ethylene glycol of the second alcoholysis reaction device 5 through the cooling supply of apparatus for supercooling, therefore, bottle sheet section in the first alcoholysis reaction device with the ethylene glycol liquid mixing, by complete wetting, and, under the high-speed stirring effect of whipping appts 9, the section of large-size is broken, the mixing species solids size homogeneous finally obtained and less, greatly reduced the pure decompression force of the second alcoholysis reaction device 5, can greatly shorten the time of alcoholysis reaction.
As shown in Figure 1, retrieving arrangement I of the present utility model can be done following further improvement:
1) bottom of washing unit 1 and lifting gear 2 all is communicated with refining plant 13 by the second transferpump 18, refining plant 13 is communicated with washing unit 1, lifting gear 2 respectively by the 3rd transferpump 14 again, the main component of the soiling solution body that washing unit 1 and lifting gear 2 produce is ethylene glycol and low-molecular-weight carboxylate, through the second transferpump 18, these are sent into to the ethylene glycol that refining plant 13 reclaims wherein, the ethylene glycol that recovery obtains is transported in washing unit 1 and lifting gear 2 again, can realize the recycle of ethylene glycol.
2) bottom of washing unit 1 also is communicated with monoethylene glycol steam-pipe 15.When the unnecessary ethylene glycol steam of the second alcoholysis reaction device 5 is not enough to meet the cleaning that the bottle sheet is cut into slices, can pass through the 15 additional clean agent of ethylene glycol steam-pipe.
3) the interior whipping appts 9 that arranges of the second alcoholysis reaction device 5, and whipping appts 9 is preferably paddle agitator, and stirring velocity is slower, and blade area is large, can make thick liquid reach mixed uniformly effect, can avoid again liquid to splash everywhere and bring the cleaning problem.
4) the second alcoholysis reaction device 5 preferably is connected with the bottom of washing unit 1, can improve the utilization ratio of ethylene glycol steam in cleaning tower.
5) heating unit 6 of the second alcoholysis reaction device 5 can adopt the inner coil pipe that heating agent is equipped with in inside to realize.
6) outside of the second alcoholysis reaction device 5 is provided with attemperator 10, in specific implementation process, often by realize insulation in reactor arranged outside insulation jacket.
7) bottom of the second alcoholysis reaction device is communicated with the 4th transferpump 16, filtration unit 17 successively, and filtration unit 17 can remove by filter remaining impurity; In specific implementation process, the 4th transferpump adopts toothed gear pump more.
As shown in Figure 2, retrieving arrangement II of the present utility model can be done following improvement:
1) bottom of washing unit 1 and lifting gear 2 all is communicated with refining plant 13 by the second transferpump 18, refining plant 13 is communicated with washing unit 1, lifting gear 2, the first alcoholysis reaction device 5 respectively by the 3rd transferpump 14 again, not only can make ethylene glycol obtain recycle, and, through refining plant 13, purify the ethylene glycol liquid obtained and can jointly for the first alcoholysis reaction device, provide sufficient reactant through the cooling ethylene glycol liquid obtained of apparatus for supercooling 18.
2) because the temperature that reclaims the ethylene glycol liquid obtained through refining plant 13 is lower, if directly pass in washing unit 1, lifting gear 2, the first alcoholysis reaction device 8, cleaning and alcoholysis effect are poor, therefore, the exit side of the 3rd transferpump 14 is provided with heating unit 16, and heating unit 16 is communicated with washing unit, lifting gear 2, the first alcoholysis reaction device 8 respectively again.
3) whipping appts 9 of the first alcoholysis reaction device 8 is preferably the profile of tooth agitator, speed, and the shearing force of profile of tooth blade is large, can fast large-sized polyester bottle slice be smashed.
4) be provided with attemperator 10 outside the first alcoholysis reaction device 8, in specific implementation process, often by realize insulation in reactor arranged outside insulation jacket.
5) also heating unit 6 can be set in the first alcoholysis reaction device 8, heating unit 6 can adopt the inner coil pipe that heating agent is equipped with in inside to realize.
In specific implementation process, refining plant 13 can adopt the pressure filter mode that gac+gac carclazyte is filter material or adopt active carbon spheres fixed bed mode, and these structures are structure known in this field, at this, do not do and repeat.
Certainly, above-mentioned explanation is not to restriction of the present utility model, and the utility model also is not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present utility model, the variation of making, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.
Claims (8)
1. the retrieving arrangement I of a waste and old polyester bottle sheet, it is characterized in that: comprise the washing unit, lifting gear, crusher, the first transferpump and the second alcoholysis reaction device that are communicated with along the production line order, the second alcoholysis reaction device is communicated with the monoethylene glycol fluid pipeline, be provided with heating unit in the second alcoholysis reaction device, and the top of the second alcoholysis reaction device is communicated with washing unit by a pipeline.
2. the retrieving arrangement II of a waste and old polyester bottle sheet, it is characterized in that: comprise the washing unit be communicated with along the production line order, lifting gear, crusher, the first alcoholysis reaction device, the first transferpump and the second alcoholysis reaction device, the second alcoholysis reaction device is communicated with the monoethylene glycol fluid pipeline, be provided with heating unit in the second alcoholysis reaction device, the top of the second alcoholysis reaction device is communicated with washing unit by a pipeline, the top of the second alcoholysis reaction device is communicated with refrigerating unit by another pipeline, refrigerating unit is communicated with the first alcoholysis reaction device again, and, be provided with whipping appts in the first alcoholysis reaction device.
3. the retrieving arrangement of a kind of waste and old polyester bottle sheet according to claim 1 and 2, it is characterized in that: the bottom of washing unit and lifting gear all is communicated with refining plant by the second transferpump, and refining plant is communicated with washing unit, lifting gear respectively by the 3rd transferpump again.
4. the retrieving arrangement of a kind of waste and old polyester bottle sheet according to claim 1 and 2, it is characterized in that: the bottom of the second alcoholysis reaction device is communicated with the 4th transferpump, filtration unit successively.
5. the retrieving arrangement of a kind of waste and old polyester bottle sheet according to claim 1, is characterized in that: in the second alcoholysis reaction device, be provided with whipping appts.
6. the retrieving arrangement of a kind of waste and old polyester bottle sheet according to claim 1, it is characterized in that: whipping appts is paddle stirrer.
7. the retrieving arrangement of a kind of waste and old polyester bottle sheet according to claim 2, it is characterized in that: the bottom of washing unit and lifting gear all is communicated with refining plant by the second transferpump, and refining plant is communicated with washing unit, lifting gear, the first alcoholysis reaction device respectively by the 3rd transferpump again.
8. the retrieving arrangement of a kind of waste and old polyester bottle sheet according to claim 2, it is characterized in that: the whipping appts of the first alcoholysis reaction device is the profile of tooth agitator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204198807U CN203360356U (en) | 2013-07-13 | 2013-07-13 | Recovery device of waste polyester bottle chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204198807U CN203360356U (en) | 2013-07-13 | 2013-07-13 | Recovery device of waste polyester bottle chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203360356U true CN203360356U (en) | 2013-12-25 |
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ID=49808148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204198807U Expired - Fee Related CN203360356U (en) | 2013-07-13 | 2013-07-13 | Recovery device of waste polyester bottle chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203360356U (en) |
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2013
- 2013-07-13 CN CN2013204198807U patent/CN203360356U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20200713 |
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| CF01 | Termination of patent right due to non-payment of annual fee |