CN108081506A - A kind of waste PET plastics conche - Google Patents
A kind of waste PET plastics conche Download PDFInfo
- Publication number
- CN108081506A CN108081506A CN201611036790.4A CN201611036790A CN108081506A CN 108081506 A CN108081506 A CN 108081506A CN 201611036790 A CN201611036790 A CN 201611036790A CN 108081506 A CN108081506 A CN 108081506A
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- CN
- China
- Prior art keywords
- conche
- dissolution kettle
- hopper
- waste pet
- outlet
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0203—Separating plastics from plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
-
- 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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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
A kind of waste PET plastics conche disclosed by the invention, using the characteristic of PET and PVC different solubilities in specific solvent, by the dissolved impurity PVC under the action of specific solvent, drying filter residue can obtain sterling PET plastic.The purity for effectively increasing PET plastic simultaneously can be with the recycling PVC plastic of by-product higher degree.
Description
Technical field
The present invention relates to plastic processing machinery fields, particularly a kind of waste PET plastics conche.
Background technology
Plastics are daily necessities, the general designation of industrial goods that plastics is used to be formed for main Raw material processing.Due to plastics
Mass production, consumption cause the quantity of plastic refuse to sharply increase with shorter service life.The a large amount of of plastics discard not only
The huge waste of resource is caused, also brings high risks to environment：Contaminated soil and ocean, burning disposal generation largely have object
Matter.Become increasingly conspicuous in energy problem, environmental problem it is increasingly serious under the new situation, strengthen the research that technics of reclaim of plastic waste utilizes and draw
The great attention of Qi Liao national governments.The recycling of waste plastic includes three phases：It collects, sort and recycles, existing rank
The bottleneck of section restriction technics of reclaim of plastic waste is the sorting of plastics.
For polyvinyl chloride (PVC), polyethylene terephthalate (PET) plastics, they are usually used for manufacture beverage
The material of bottle, and physical property is close, and removal process is easy to mix together；It is mixed into PVC in a small amount of PET or PET
The performance after the two recycling can all be seriously affected by being mixed into minimal amount of PVC.
Based on the above problem, there is an urgent need for a kind of waste PET plastics conches.
The content of the invention
The technical problems to be solved by the invention, which are to provide one kind, can separate and recover mixed waste PET in PET plastic
Plastics conche.
Specific technical solution of the present invention is as follows：
A kind of waste PET plastics conche, including material placing device, dissolver, separator, liquid caching dress
It puts, drying unit；
The material placing device includes hopper, hopper cover, augering screw motor, augering screw；It is charging at the top of the hopper
Mouthful, bottom is discharge port；The hopper cover is arranged at the hopper feed mouth；The augering screw is vertically arranged in the material
It struggles against in internal cavities, augering screw bottom extends the hopper discharge port slightly above；The stirring motor is arranged on the hopper
Portion is covered, stirring motor shaft is connected with the augering screw；
The dissolver includes dissolution kettle, stirring motor, temperature controller, blender, heater, condenser；It is described
Dissolution kettle is arranged on affiliated material placing device bottom, is arranged on the discharging of the feeding-in solid body mouth and the feed hopper bottom at the top of dissolution kettle
Mouth is connected by pipeline；The blender is arranged in the dissolution kettle, and stirring motor is arranged at the top of the dissolution kettle and institute
Blender is stated to be connected；The temperature controller and the heater are arranged inside the dissolution kettle, temperature controller control
Heater processed adjusts the operating temperature of dissolution kettle at 30-50 DEG C；The condenser is arranged on the dissolution kettle top, condenser into
Mouth tube side import and export is connected with the dissolution kettle, and condenser shell import and export is connected with refrigerant into and out of pipeline；Institute during use
It states and solvent is filled in dissolution kettle；
The separator includes high speed liquid remover, conveyer belt；The high speed liquid remover entrance is exported with the dissolution kettle
It is connected by pipeline, valve is provided on pipeline；The high speed liquid remover liquid outlet is connected with the liquid buffer storage；Institute
It states high speed liquid remover solid outlet bottom and conveyer belt is set；
The liquid buffer storage includes caching pump, feeding pump, buffer tank；The caching pump intake takes off liquid with the high speed
Machine liquid outlet is connected, and the caching pump discharge is connected with the buffer tank entrance；The feeding pump intake and the buffer tank
Outlet is connected, and the feeding pump discharge is connected with the dissolution kettle；
The drying unit is dryer；The conveyer belt is by the high speed liquid remover solid outlet bottom by PET solids
Particle, which is sent into the dryer, is dried.
Further, the heater is electric heater.
Further, the heater is coiled steam heater or jacket type steam heater.
Further, the refrigerant is water or freezing brine ice.
Further, the high speed liquid remover could alternatively be plate and frame type filter-press.
Further, for tetrahydrofuran, either the arbitrary proportion of dimethylbenzene or tetrahydrofuran and dimethylbenzene mixes the solvent
Close object.
A kind of waste PET plastics conche disclosed by the invention, when work, are made by the rotation of augering screw in hopper
Crude product recycled PET plastic grain smoothly falls and prevents from blocking, and is arranged on crude product recycled PET plastic grain in dissolution kettle and exists with solvent
It is sufficiently mixed under blender effect, the operating temperature that temperature controller control heater adjusts dissolution kettle is volatilized at 30-50 DEG C
The solvent vapo(u)r come in condenser is condensed into liquid and passes back into dissolution kettle again under the action of refrigerant, keep 30-50 DEG C of condition
After lower stirring 180-240min, open dissolution kettle outlet valve and solidliquid mixture is introduced into high speed liquid remover by gravity,
The lower separation of solid and liquid of high speed liquid remover effect, solid is fine work recycled PET plastic grain, and communicated band introduces drying machine drying.It is high
The liquid that fast liquid remover is isolated is the solvent dissolved with PVC impurity, and buffered pump introducing buffer tank caching is spare, reuses
When through feeding pump squeeze into dissolution kettle.Solvent can periodically take out the PVC that dissolving is isolated after distillation, can be passed through again after separation
The present invention reuses.
The beneficial effects of the present invention are provide a kind of PVC plastic that can be separated and recovered with convenience and high-efficiency in PET plastic
Equipment.The purity of recycled PET plastics is effectively increased, reduces influence of the PVC impurity to PET properties.By-product goes out PVC simultaneously
Plastics improve economic benefit.
Our experiments show that by using the present invention, recycled PET plastics purity can be increased to 99%, and by-product PVC plastic
Expect purity also 98%.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the material placing device structure diagram of the present invention.
Fig. 3 is the hopper of the present invention and hopper cover structure diagram.
Fig. 4 is the dissolver structure diagram of the present invention.
Fig. 5 is the liquid buffer storage structure diagram of the present invention.
Specific embodiment
The specific embodiment of the present invention is further described with reference to the accompanying drawings and examples, following embodiment is only used
In clearly illustrating technical scheme, and it is not intended to limit the protection scope of the present invention and limits the scope of the invention.
Embodiment 1
As shown in Figs. 1-5, a kind of waste PET plastics conche, including material placing device 1, dissolver 2, separation dress
Put 3, liquid buffer storage 4, drying unit 5；
The material placing device 1 includes hopper 11, hopper cover 12, augering screw motor 13, augering screw 14；The hopper 11
Top is feed inlet, and bottom is discharge port；The hopper cover 12 is arranged at 11 feed inlet of hopper；The augering screw 14
It is vertically arranged in 11 internal cavities of hopper, 14 bottom of augering screw extends 11 discharge port of hopper slightly above；It is described
Stirring motor 13 is arranged on 12 top of hopper cover, and 13 shaft of stirring motor is connected with the augering screw 14；
The dissolver 2 include dissolution kettle 21, stirring motor 22, temperature controller 23, blender 24, heater 25,
Condenser 26；The dissolution kettle 21 is arranged on affiliated 1 bottom of material placing device, be arranged on the feeding-in solid body mouth at the top of dissolution kettle 21 with
The discharge port of 11 bottom of hopper is connected by pipeline；The blender 24 is arranged in the dissolution kettle 21, stirring motor
22 are arranged on 21 top of dissolution kettle is connected with the blender 24；The temperature controller 23 and the heater 25 are equal
It is arranged on inside the dissolution kettle 21, temperature controller 23 controls heater 25 to adjust the operating temperature of dissolution kettle 21 in 30-50
DEG C, heater 25 uses electric heater；The condenser 26 is arranged on 21 top of dissolution kettle, 26 import tube side of condenser
Import and export is connected with the dissolution kettle 21, and 26 shell import and export of condenser is connected with refrigerant into and out of pipeline, and refrigerant is using cold
But water；Solvent is filled with during use in the dissolution kettle 21, solvent uses tetrahydrofuran；
The separator 3 includes high speed liquid remover 31, conveyer belt 32；31 entrance of high speed liquid remover and the dissolving
Kettle 21 is exported to be connected by pipeline, and valve is provided on pipeline；31 liquid outlet of high speed liquid remover is cached with the liquid
Device 4 is connected；The 31 solid outlet bottom of high speed liquid remover sets conveyer belt 32；
The liquid buffer storage 4 includes caching pump 41, feeding pump 42, buffer tank 43；Caching 41 entrances of pump and institute
It states 31 liquid outlet of high speed liquid remover to be connected, 41 outlet of caching pump is connected with 43 entrance of buffer tank；The feeding pump
42 entrances are connected with the buffer tank 43 outlet, and the outlet of feeding pump 42 is connected with the dissolution kettle 21；
The drying unit 5 is dryer 51；The conveyer belt 32 will by the 31 solid outlet bottom of high speed liquid remover
PET solid particles, which are sent into the dryer 51, is dried.
By the rotation of augering screw the crude product recycled PET plastic grain in hopper 11 is made smoothly to fall during work prevents from blocking up
Plug is arranged on crude product recycled PET plastic grain in dissolution kettle 21 and is sufficiently mixed with tetrahydrofuran under the effect of blender 24, temperature
Controller 23 controls the operating temperature of the adjusting dissolution kettle 21 of heater 25, and at 30-50 DEG C, the tetrahydrofuran steam evaporated exists
Again liquid is condensed into condenser under the action of cooling water and passes back into dissolution kettle 21,180- is stirred under the conditions of being kept for 30-50 DEG C
After 240min, open 21 outlet valve of dissolution kettle and solidliquid mixture is introduced into high speed liquid remover 31 by gravity, it is de- in high speed
The lower separation of solid and liquid of the effect of liquid machine 31, solid is fine work recycled PET plastic grain, and communicated band 32 introduces dryer 51 and dries.It is high
The liquid that fast liquid remover 31 is isolated is the tetrahydrofuran dissolved with PVC impurity, and buffered 41 introducing buffer tank 43 of pump caches standby
With squeezing into dissolution kettle 21 through feeding pump 42 when reusing.Tetrahydrofuran can periodically take out and dissolving is isolated after distillation
PVC can be passed through the present invention again after separation and reuse.
Embodiment 2
As shown in Figs. 1-5, a kind of waste PET plastics conche, including material placing device 1, dissolver 2, separation dress
Put 3, liquid buffer storage 4, drying unit 5；
The material placing device 1 includes hopper 11, hopper cover 12, augering screw motor 13, augering screw 14；The hopper 11
Top is feed inlet, and bottom is discharge port；The hopper cover 12 is arranged at 11 feed inlet of hopper；The augering screw 14
It is vertically arranged in 11 internal cavities of hopper, 14 bottom of augering screw extends 11 discharge port of hopper slightly above；It is described
Stirring motor 13 is arranged on 12 top of hopper cover, and 13 shaft of stirring motor is connected with the augering screw 14；
The dissolver 2 include dissolution kettle 21, stirring motor 22, temperature controller 23, blender 24, heater 25,
Condenser 26；The dissolution kettle 21 is arranged on affiliated 1 bottom of material placing device, be arranged on the feeding-in solid body mouth at the top of dissolution kettle 21 with
The discharge port of 11 bottom of hopper is connected by pipeline；The blender 24 is arranged in the dissolution kettle 21, stirring motor
22 are arranged on 21 top of dissolution kettle is connected with the blender 24；The temperature controller 23 and the heater 25 are equal
It is arranged on inside the dissolution kettle 21, temperature controller 23 controls heater 25 to adjust the operating temperature of dissolution kettle 21 in 30-50
DEG C, heater 25 uses electric heater；The condenser 26 is arranged on 21 top of dissolution kettle, 26 import tube side of condenser
Import and export is connected with the dissolution kettle 21, and 26 shell import and export of condenser is connected with refrigerant into and out of pipeline, and refrigerant is using cold
But water；Solvent is filled with during use in the dissolution kettle 21, solvent uses dimethylbenzene；
The separator 3 includes high speed liquid remover 31, conveyer belt 32；31 entrance of high speed liquid remover and the dissolving
Kettle 21 is exported to be connected by pipeline, and valve is provided on pipeline；31 liquid outlet of high speed liquid remover is cached with the liquid
Device 4 is connected；The 31 solid outlet bottom of high speed liquid remover sets conveyer belt 32；
The liquid buffer storage 4 includes caching pump 41, feeding pump 42, buffer tank 43；Caching 41 entrances of pump and institute
It states 31 liquid outlet of high speed liquid remover to be connected, 41 outlet of caching pump is connected with 43 entrance of buffer tank；The feeding pump
42 entrances are connected with the buffer tank 43 outlet, and the outlet of feeding pump 42 is connected with the dissolution kettle 21；
The drying unit 5 is dryer 51；The conveyer belt 32 will by the 31 solid outlet bottom of high speed liquid remover
PET solid particles, which are sent into the dryer 51, is dried.
By the rotation of augering screw the crude product recycled PET plastic grain in hopper 11 is made smoothly to fall during work prevents from blocking up
Plug is arranged on crude product recycled PET plastic grain in dissolution kettle 21 and is sufficiently mixed with dimethylbenzene under the effect of blender 24, temperature control
Device 23 processed controls the operating temperature of the adjusting dissolution kettle 21 of heater 25, and at 30-50 DEG C, the xylene steam evaporated is condensing
Again liquid is condensed into device under the action of cooling water and passes back into dissolution kettle 21,180- is stirred under the conditions of being kept for 30-50 DEG C
After 240min, open 21 outlet valve of dissolution kettle and solidliquid mixture is introduced into high speed liquid remover 31 by gravity, it is de- in high speed
The lower separation of solid and liquid of the effect of liquid machine 31, solid is fine work recycled PET plastic grain, and communicated band 32 introduces dryer 51 and dries.It is high
The liquid that fast liquid remover 31 is isolated be the dimethylbenzene dissolved with PVC impurity, it is buffered pump 41 introducing buffer tanks 43 cache it is spare,
When reusing dissolution kettle 21 is squeezed into through feeding pump 42.Dimethylbenzene can periodically take out the PVC that dissolving is isolated after distillation, point
The present invention can be passed through again from after to reuse.
The above is only the preferred embodiments of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of waste PET plastics conche, which is characterized in that including material placing device (1), dissolver (2), separator
(3), liquid buffer storage (4), drying unit (5).
2. a kind of waste PET plastics conche as described in claim 1, which is characterized in that the material placing device (1) includes material
It struggles against (11), hopper cover (12), augering screw motor (13), augering screw (14)；It is feed inlet at the top of the hopper (11), bottom
For discharge port；The hopper cover (12) is arranged at the hopper (11) feed inlet；The augering screw (14) is vertically arranged in
In hopper (11) internal cavities, augering screw (14) bottom extends the hopper (11) discharge port slightly above；The stirring
Motor (13) is arranged on the hopper cover (12) top, and stirring motor (13) shaft is connected with the augering screw (14).
3. a kind of waste PET plastics conche as described in claim 1, which is characterized in that the dissolver (2) includes molten
Solve kettle (21), stirring motor (22), temperature controller (23), blender (24), heater (25), condenser (26)；It is described molten
Solution kettle (21) is arranged on affiliated material placing device (1) bottom, the feeding-in solid body mouth and the hopper being arranged at the top of dissolution kettle (21)
(11) discharge port of bottom is connected by pipeline；The blender (24) is arranged in the dissolution kettle (21), stirring motor
(22) it is arranged at the top of the dissolution kettle (21) and is connected with the blender (24)；The temperature controller (23) and it is described plus
Hot device (25) is arranged at the dissolution kettle (21) inside, and temperature controller (23) control heater (25) adjusts dissolution kettle (21)
Operating temperature at 30-50 DEG C；The condenser (26) is arranged on the dissolution kettle (21) top, condenser (26) import tube side
Import and export is connected with the dissolution kettle (21), and condenser (26) shell import and export is connected with refrigerant into and out of pipeline；During use
Solvent is filled in the dissolution kettle (21).
4. a kind of waste PET plastics conche as described in claim 1, which is characterized in that the separator (3) includes height
Fast liquid remover (31), conveyer belt (32)；High speed liquid remover (31) entrance passes through pipeline phase with the dissolution kettle (21) outlet
Even, it is provided with valve on pipeline；High speed liquid remover (31) liquid outlet is connected with the liquid buffer storage (4)；It is described
High speed liquid remover (31) solid outlet bottom sets conveyer belt (32).
A kind of 5. waste PET plastics conche as described in claim 1, which is characterized in that liquid buffer storage (4) bag
Include caching pump (41), feeding pump (42), buffer tank (43)；Caching pump (41) entrance and high speed liquid remover (31) liquid
Outlet is connected, and caching pump (41) outlet is connected with the buffer tank (43) entrance；Feeding pump (42) entrance with it is described
Buffer tank (43) outlet is connected, and feeding pump (42) outlet is connected with the dissolution kettle (21)；
The drying unit (5) is dryer (51)；The conveyer belt (32) is by high speed liquid remover (31) the solid outlet bottom
PET solid particles are sent into the dryer (51) by portion dries.
6. a kind of waste PET plastics conche as described in claim 1, which is characterized in that the heater (25) is that electricity adds
Hot device.
7. a kind of waste PET plastics conche as described in claim 1, which is characterized in that heater (25) is that coiled steams
Vapour heater or jacket type steam heater.
8. a kind of waste PET plastics conche as described in claim 1, which is characterized in that the refrigerant is water or freezing
Brine ice.
9. a kind of waste PET plastics conche as described in claim 1, which is characterized in that the high speed liquid remover (31) can
To replace with plate and frame type filter-press.
10. a kind of waste PET plastics conche as described in claim 1, which is characterized in that solvent is tetrahydrofuran or two
The arbitrary proportion mixture of toluene or tetrahydrofuran and dimethylbenzene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611036790.4A CN108081506A (en) | 2016-11-23 | 2016-11-23 | A kind of waste PET plastics conche |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611036790.4A CN108081506A (en) | 2016-11-23 | 2016-11-23 | A kind of waste PET plastics conche |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108081506A true CN108081506A (en) | 2018-05-29 |
Family
ID=62168996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611036790.4A Pending CN108081506A (en) | 2016-11-23 | 2016-11-23 | A kind of waste PET plastics conche |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108081506A (en) |
-
2016
- 2016-11-23 CN CN201611036790.4A patent/CN108081506A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180529 |