CN207330812U - A kind of equipment using supercritical carbon dioxide ground rubber - Google Patents
A kind of equipment using supercritical carbon dioxide ground rubber Download PDFInfo
- Publication number
- CN207330812U CN207330812U CN201721328040.4U CN201721328040U CN207330812U CN 207330812 U CN207330812 U CN 207330812U CN 201721328040 U CN201721328040 U CN 201721328040U CN 207330812 U CN207330812 U CN 207330812U
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- Prior art keywords
- carbon dioxide
- supercritical
- reaction kettle
- tank
- equipment
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
-
- 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)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The utility model belongs to waste old processing technology field, refer specifically to a kind of equipment using supercritical carbon dioxide ground rubber, carbon dioxide tank, heat exchanger, carbon dioxide buffer tank, supercritical reaction kettle, storage tank and the single screw extrusion machine being interconnected including passing sequentially through pipeline, force (forcing) pump is provided between the carbon dioxide tank and heat exchanger, the heat exchanger, carbon dioxide buffer tank, supercritical reaction kettle are both provided with heating and heat-insulating device；Agitating device is provided with the supercritical reaction kettle.The utility model device is simple, and investment is small, and technological parameter is easily controllable, and obtained ground rubber performance is stablized.In addition, in the utility model be fully utilized supercritical carbon dioxide waste rubber powder is softened and is swollen, do not contain the other compositions such as desulfurizing agent, plasticising oil, reach rubber powder environmental requirement and technique productions in environmental requirement.
Description
Technical field
The utility model belongs to waste old processing technology field, refers specifically to one kind and utilizes supercritical carbon dioxide reclaimed rubber
The equipment of powder.
Background technology
China is the country of rubber-consumer amount maximum in the world, while is the very deficient country of rubber sources again, waste and old
Rubber production reclaimed rubber can alleviate the dependence on external supply degree of China's rubber sources.
Chinese patent CN 106380623A disclose a kind of supercritical carbon dioxide assisting waste rubber ozone and break sulfur regeneration
Technique, using full extruding machine with two screw rods engaging in the same direction as mixing facilities, is equipped with supercritical carbon dioxide injected system in an extruder,
Permeability, diffusivity of supercritical carbon dioxide etc. are make use of, rubber is swollen, rubber is destroyed under the action of ozone
Cross-linked network obtain reclaimed rubber, this technique needs supercritical carbon dioxide injected system being fitted into extruder, to equipment will
Ask high, investment is big, and high energy consumption.
Disclosed in Chinese patent CN106349498A and a kind of nuisanceless recycling is carried out to waste old grain or rubber powder
Method, two supercriticalities of this method, swelling extraction, Zhi Hou are carried out first with supercritical carbon dioxide to rubber powder
The expansion to rubber powder is realized under second supercriticality, obtains regenerated rubber powder finally by shearing, this method is molten to rubber powder
Toluene, acetone and other organic solvent can be used during swollen extraction, and two parts supercriticality carries out in an extruder, it is right
Extruder requirement is very high, although continuous production can be realized, to the difficulty of process stabilizing control in actual mechanical process
It can increase.
At present, domestic reclaimed rubber industry generally uses high temperature and pressure dynamic desulfurization, and the method is big, secondary there are labor intensity
The problems such as pollution and high energy consumption.Therefore, designing a kind of sustainable development of energy-saving and environment-friendly new equipment to China's economy has weight
Want meaning.
The content of the invention
In order to overcome the defects of the prior art, the purpose of this utility model is to provide a kind of energy conservation and environmental protection, low cost,
The equipment using supercritical carbon dioxide ground rubber of high efficiency.
What the purpose of this utility model was realized in：
A kind of equipment using supercritical carbon dioxide ground rubber, including pass sequentially through the titanium dioxide that pipeline is interconnected
Canister, heat exchanger, carbon dioxide buffer tank, supercritical reaction kettle, storage tank and single screw extrusion machine, the carbon dioxide tank and are changed
Force (forcing) pump is provided between hot device, the heat exchanger, carbon dioxide buffer tank, supercritical reaction kettle are both provided with heating and thermal insulation dress
Put；Agitating device is provided with the supercritical reaction kettle.
Preferably, the heating and heat-insulating device includes heating furnace and the heating tube for connecting heating furnace, the heat exchanger, dioxy
Change and be both provided with the heating tube outside carbon surge tank and supercritical reaction kettle.
Preferably, it is provided with Liquid guiding pump on the pipeline between the carbon dioxide tank and force (forcing) pump.
Preferably, it is provided with nozzle on the pipeline between the supercritical reaction kettle and storage tank.
Preferably, a diameter of 1-2mm of the nozzle of the reaction kettle.
Preferably, the agitating device includes stirring motor, retarder and agitating shaft, and one end of the agitating shaft is set
Stirring motor is connected outside supercritical reaction kettle and by retarder, the other end of the agitating shaft is arranged on supercritical reaction
Kettle inside is simultaneously bent to form screw type mixing part.
Preferably, several carbon dioxide buffer tanks and supercritical reaction can be set respectively between the heat exchanger and storage tank
Kettle.
Preferably, between the carbon dioxide tank and Liquid guiding pump, between Liquid guiding pump and force (forcing) pump and carbon dioxide buffer
The switch valve of control fluid size is both provided between tank and supercritical reaction kettle.
The utility model is prominent and beneficial compared with prior art to be had the technical effect that：
1st, the utility model device is simple, and investment is small, and technological parameter is easily controllable, and obtained ground rubber performance is steady
It is fixed.
2nd, supercritical carbon dioxide is fully utilized in the utility model waste rubber powder is softened and is swollen, does not contain de-
The other compositions such as sulphur agent, plasticising oil, reach rubber powder environmental requirement and technique productions in environmental requirement.
3rd, the utility model can reach required regeneration by suitably adjusting the quantity of surge tank and supercritical reaction kettle
The required yield of rubber powder.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Figure label implication：
1- carbon dioxide tanks；2- force (forcing) pumps；3- heat exchangers；4- surge tanks；5- supercritical reaction kettles；6- agitating devices；7-
Nozzle；8- storage tanks；9- single screw extrusion machines；10- Liquid guiding pumps；11- heating furnaces；12- heating tubes；13- stirring motors；14- slows down
Device；15- agitating shafts.
Embodiment
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings：
A kind of equipment using supercritical carbon dioxide ground rubber, including pass sequentially through the titanium dioxide that pipeline is interconnected
Canister 1, heat exchanger 3, carbon dioxide buffer tank 4, supercritical reaction kettle 5, storage tank 8 and single screw extrusion machine 9, the carbon dioxide
Force (forcing) pump 2 is provided between tank 1 and heat exchanger 3, the heat exchanger 3, carbon dioxide buffer tank 4, supercritical reaction kettle 5 are respectively provided with
There is heating and heat-insulating device；Agitating device 6 is provided with the supercritical reaction kettle 5.
Preferably, the heating and heat-insulating device includes heating furnace 11 and the heating tube 12 for connecting heating furnace 11, the heat exchange
The heating tube 12 is wound with outside device 3, carbon dioxide buffer tank 4 and supercritical reaction kettle 5.The medium of the heating furnace 11 is
Conduction oil, conduction oil good heat conduction effect, in addition sets heating tube 12 of going the same way outside carbon dioxide buffer tank 4 and supercritical reaction kettle 5,
It can guarantee that the temperature in surge tank 4 is consistent with the temperature in reaction kettle 5.
Preferably, Liquid guiding pump 10 is provided with the pipeline between the carbon dioxide tank 1 and force (forcing) pump 2, is conducive to super face
The flowing of boundary's carbon dioxide.
Preferably, it is provided with nozzle 7 on the pipeline between the supercritical reaction kettle 5 and storage tank 8.
Preferably, a diameter of 1-2mm of the nozzle 7 of the reaction kettle 5.
Preferably, the agitating device 6 includes stirring motor 13, retarder 14 and agitating shaft 15, the agitating shaft 15
One end be arranged on the outside of supercritical reaction kettle 5 and stirring motor 13 connected by retarder 14, the agitating shaft 13 it is another
End is arranged on the inside of supercritical reaction kettle 5 and is bent to form screw type mixing part.
Preferably, between the carbon dioxide tank 1 and Liquid guiding pump 10, between Liquid guiding pump 10 and force (forcing) pump 2 and titanium dioxide
The switch valve of control fluid size is both provided between carbon surge tank 4 and supercritical reaction kettle 5.
Preferably, several carbon dioxide buffer tanks 4 and overcritical can be set respectively between the heat exchanger 3 and storage tank 8
Reaction kettle 5.The utility model can reach required reclaimed rubber by suitably adjusting the quantity of surge tank and supercritical reaction kettle
The required yield of powder.
The technological process of the utility model includes the following steps：
Step A：Supercritical carbon dioxide in carbon dioxide tank 1 is extracted out by force (forcing) pump 2, is reached by heat exchanger 3
In surge tank 4, the surge tank 4 is provided with heating and heat-insulating device；
Step B：Carbon dioxide enters from surge tank 4 to be filled 40-80 mesh waste rubber powder and accounts for 1/5-1/3 waste rubber powder amounts
In the supercritical reaction kettle 5 of water, the operating temperature for controlling supercritical reaction kettle 5 is 40 DEG C -200 DEG C, pressure 8-30MPa, is satisfied
It is 1-6h with the time, and is stirred continuously in saturation history；
Step C：After saturation, pressure release is carried out by the nozzle 7 of supercritical reaction kettle 5, is entered with the rubber powder of gas and water
In storage tank 8 with separation function；While pressure release, pressure constantly is supplemented to supercritical reaction kettle 5 in surge tank 4, it is described to face
The inside of boundary's reaction kettle 5 maintains pressure value to be equal to ± 2% saturation pressure for starting setting；Until rubber powder is complete in supercritical reaction kettle 5
After portion's discharge, then pressure in supercritical reaction kettle 5 released；
Step D：After the rubber powder drying in storage tank 8, put into single screw extrusion machine 9, carry out extruding further regeneration, and
Obtain ground rubber.
Supercritical carbon dioxide is fully utilized in the utility model waste rubber powder is softened and is swollen, does not contain desulfurization
The other compositions such as agent, plasticising oil, reach rubber powder environmental requirement and technique productions in environmental requirement.
Preferably, the operating temperature of the single screw extrusion machine 9 is 120 DEG C -180 DEG C, the revival of rubber powder at a temperature of this
Fruit is optimal.
Preferably, the temperature in the surge tank 4 is consistent with the temperature in supercritical reaction kettle 5.
The utility model using supercritical carbon dioxide permeability and the swelling action to rubber, by design equipment and
Technique, using supercritical reaction kettle, controls the process conditions such as temperature, pressure and saturation time in swelling process, finally fast
The destruction to rubber cross network is realized during fast pressure release.Wherein during quick pressure releasing, the pressure release bore of nozzle
It is small, the purpose of pressure release is not only reached, completes extruding and explosion to rubber powder particle yet.The continuous ftercompction from surge tank at the same time,
To realize the regenerated stability of rubber powder, after rubber powder is completely exhausted out, into the storage tank with separation function, by water and reclaimed rubber
Powder separates, and ground rubber enters single screw extrusion machine after drying afterwards, using the shearing force of extruder, further to realize
The regeneration of rubber powder, cross-bond loose after carbon dioxide explosion is further opened, completes the regeneration technology of rubber powder
The utility model device is simple, and investment is small, and technological parameter is easily controllable, and obtained ground rubber performance is stablized.
Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this
Enclose, therefore：The equivalence changes that all structures, shape, principle according to the utility model are done, should all be covered by the protection of the utility model
Within the scope of.
Claims (8)
- A kind of 1. equipment using supercritical carbon dioxide ground rubber, it is characterised in that：Mutually interconnected including passing sequentially through pipeline Logical carbon dioxide tank (1), heat exchanger (3), carbon dioxide buffer tank (4), supercritical reaction kettle (5), storage tank (8) and single screw rod Extruder (9), is provided with force (forcing) pump (2), the heat exchanger (3), dioxy between the carbon dioxide tank (1) and heat exchanger (3) Change carbon surge tank (4), supercritical reaction kettle (5) is both provided with heating and heat-insulating device；It is provided with the supercritical reaction kettle (5) Agitating device (6).
- A kind of 2. equipment using supercritical carbon dioxide ground rubber according to claim 1, it is characterised in that：It is described Heating and heat-insulating device includes heating furnace (11) and the heating tube (12) for connecting heating furnace (11), the heat exchanger (3), carbon dioxide The heating tube (12) is both provided with outside surge tank (4) and supercritical reaction kettle (5).
- A kind of 3. equipment using supercritical carbon dioxide ground rubber according to claim 1 or 2, it is characterised in that： Liquid guiding pump (10) is provided with pipeline between the carbon dioxide tank (1) and force (forcing) pump (2).
- A kind of 4. equipment using supercritical carbon dioxide ground rubber according to claim 1, it is characterised in that：It is described Nozzle (7) is provided with pipeline between supercritical reaction kettle (5) and storage tank (8).
- A kind of 5. equipment using supercritical carbon dioxide ground rubber according to claim 4, it is characterised in that：It is described A diameter of 1-2mm of the nozzle (7) of reaction kettle (5).
- A kind of 6. equipment using supercritical carbon dioxide ground rubber according to claim 1, it is characterised in that：It is described Agitating device (6) includes stirring motor (13), retarder (14) and agitating shaft (15), and one end of the agitating shaft (15) is set In supercritical reaction kettle (5) outside and pass through retarder (14) connection stirring motor (13), the other end of the agitating shaft (15) It is arranged on supercritical reaction kettle (5) inside and is bent to form screw type mixing part.
- A kind of 7. equipment using supercritical carbon dioxide ground rubber according to claim 1, it is characterised in that：It is described Several carbon dioxide buffer tanks (4) and supercritical reaction kettle (5) can be set respectively between heat exchanger (3) and storage tank (8).
- A kind of 8. equipment using supercritical carbon dioxide ground rubber according to claim 3, it is characterised in that：It is described Between carbon dioxide tank (1) and Liquid guiding pump (10), between Liquid guiding pump (10) and force (forcing) pump (2) and carbon dioxide buffer tank (4) The switch valve of control fluid size is both provided between supercritical reaction kettle (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721328040.4U CN207330812U (en) | 2017-10-16 | 2017-10-16 | A kind of equipment using supercritical carbon dioxide ground rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721328040.4U CN207330812U (en) | 2017-10-16 | 2017-10-16 | A kind of equipment using supercritical carbon dioxide ground rubber |
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| Publication Number | Publication Date |
|---|---|
| CN207330812U true CN207330812U (en) | 2018-05-08 |
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ID=62365090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721328040.4U Active CN207330812U (en) | 2017-10-16 | 2017-10-16 | A kind of equipment using supercritical carbon dioxide ground rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207330812U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109161071A (en) * | 2018-09-01 | 2019-01-08 | 成都市水泷头化工科技有限公司 | A kind of low cost plastic rubber runway and preparation method containing waste-tyre rubber-powder |
-
2017
- 2017-10-16 CN CN201721328040.4U patent/CN207330812U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109161071A (en) * | 2018-09-01 | 2019-01-08 | 成都市水泷头化工科技有限公司 | A kind of low cost plastic rubber runway and preparation method containing waste-tyre rubber-powder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220411 Address after: 317607 Taizhou port industrial city, Yuhuan City, Taizhou, Zhejiang Patentee after: TAIZHOU ZHONGHONG COMPREHENSIVE UTILIZATION OF WASTE RUBBER Co.,Ltd. Address before: 317600 port city, Yuhuan City, Taizhou, Zhejiang Patentee before: TAIZHOU ZHONGHONG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |