CN107344405A - A kind of method of ductile plastics recovery volume reduction in house refuse - Google Patents
A kind of method of ductile plastics recovery volume reduction in house refuse Download PDFInfo
- Publication number
- CN107344405A CN107344405A CN201710475756.5A CN201710475756A CN107344405A CN 107344405 A CN107344405 A CN 107344405A CN 201710475756 A CN201710475756 A CN 201710475756A CN 107344405 A CN107344405 A CN 107344405A
- Authority
- CN
- China
- Prior art keywords
- volume reduction
- house refuse
- ductile plastics
- ductile
- plastics
- 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
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B17/0412—Disintegrating plastics, e.g. by milling to large particles, e.g. beads, granules, flakes, slices
-
- 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
- B29B2017/0213—Specific separating techniques
- B29B2017/0217—Mechanical separating techniques; devices therefor
- B29B2017/0224—Screens, sieves
-
- 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
- B29B2017/0268—Separation of metals
- B29B2017/0272—Magnetic separation
-
- 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
- B29B2017/0279—Optical identification, e.g. cameras or spectroscopy
-
- 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
- B29B2017/0286—Cleaning means used for separation
-
- 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
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- 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
Abstract
The method that the invention provides ductile plastics recovery volume reduction in a kind of house refuse, this method include weigh, crush, magnetic separation, disc screening, compression, high-pressure flush, low-temperature air-drying, machinery tile and infrared light select, the ductile plastics separated are pre-processed afterwards, volume reduction treatment is carried out afterwards, finally gives volume reduction particle.The method of ductile plastics recovery volume reduction, effectively increases the discrimination and separation velocity of plastics, improves the efficiency of separation and the rate of recovery in a kind of house refuse described in the invention, while avoids the manually direct contact for rubbish, improves automaticity.
Description
Technical field
The invention belongs to technical field of domestic garbage treatment, is returned more particularly, to ductile plastics in a kind of house refuse
The method for receiving volume reduction.
Background technology
The serious regeneration that have impact on plastic resource of traditional waste disposal method such as landfill method, burning method and composting process
Utilize, the especially recycling of ductile plastics.Plastics ratio is about 10% in Chinese MSW research composition, wherein plastic
Plastics account for more than the 70% of plastics total amount, but the rate of recovery of waste or used plastics is extremely low.Landfill method fills fertile plastics in underground for a long time,
It is difficult to degrade；Burning method has not only blocked the approach that plastics circulate, and produces the extremely toxic substances such as bioxin after burning, and causes two
Secondary pollution；Composting process can only be changed into soil and fertilizer by organic in rubbish, and plastics can not be utilized effectively wherein, and influence fertilizer
Effect.Therefore, existing technology of garbage disposal is difficult to plastics are carried out rationally effectively to recycle, and plastics can not reenter life
Produce in living, cause the huge waste of resource.
Innovation and creation content
In view of this, the method that the invention is directed to ductile plastics recovery volume reduction in a kind of house refuse, with solution
The problem of certainly the ductile plastics rate of recovery is relatively low in house refuse.
To reach above-mentioned purpose, what the technical scheme of the invention was realized in：
The method of ductile plastics recovery volume reduction, this method step are as follows in a kind of house refuse：
(1) house refuse is weighed, house refuse is sent into breaker by conveyer after reaching preset weight；
(2) homogeneous is carried out to house refuse in breaker to crush；
(3) rubbish after will be broken, which is sent into combination magnetic plant, carries out magnetic separation；
(4) rubbish after magnetic separation is subjected to disc screening, the upper lightweight thing of sieve and the lower heavy thing of sieve is divided into after screening, sieves lower weight
Matter thing is sent into heavy thing collection system；
(5) bath processing is carried out to sieving upper lightweight thing, removes lightweight thing Superficial Foreign Body；
(6) the lightweight thing after bath is subjected to drying and processing, removes moisture content in lightweight thing；
(7) the lightweight thing after drying is subjected to mechanical tiling, avoids the accumulation of lightweight thing from stacking；
(8) the lightweight thing after tiling is sent into infrared light optional equipment and carries out light choosing, picked out ductile plastics product and pass through
Ductile plastics product is carried out classification recovery by high-pressure jet choosing；
(9) ductile plastics of recovery are pre-processed, including ductile plastics is carried out finely to crush and clean；
(10) ductile plastics by pretreatment are subjected to volume reduction treatment, ductile plastics volume reduction particle is obtained after volume reduction.
Preferably, the breaker in step (2) uses twin shaft shearing-crushing mode, and crushed particles degree is less than or equal to
200mm。
Preferably, the combination magnetic plant in step (3) selects permanent magnetic separator, and permanent magnetic separator magnetic field intensity is more than
1200Gs。
Preferably, the screening spacing that disc sieves in step (4) is 80mm, and disc is sieved garbage jumping to fluffy.
Preferably, the flushing device in step (5) is giant.
Preferably, drying mode is dried using low-temperature air-cooling in step (6).
Preferably, lightweight thing will be compressed by mechanical arm in step (7) to tile, and its tiling height is less than preset height.
Preferably, it is PE and PP that step (8) mid-infrared light, which selects default sorting type,.
Preferably, ductile plastics crushed particles degree is less than or equal to 60mm in step (9), cleaning step include successively rinsing,
Low speed friction cleaning, high-speed friction cleaning, low speed friction cleaning and rinsing, ductile plastics are sent into by conveying worm after cleaning
Volume reduction equipment, moisture content is removed while screw rod is extruded ductile plastics.
Preferably, the volume reduction in step (10) includes Electromagnetic Heating and air-cooled cutting, and Electromagnetic Heating temperature is 200 DEG C -220
DEG C, a diameter of 20mm of volume reduction grain after cutting.
Relative to prior art, the method tool of ductile plastics recovery volume reduction in a kind of house refuse described in the invention
There is following advantage：
(1) method of ductile plastics recovery volume reduction tears up original using twin shaft in a kind of house refuse described in the invention
Reason to crude waste homogenize broken so that the separation that the rubbish more than complicated component, bagged articles is homogenized, more favorably
In follow-up sorting process.
(2) method of ductile plastics recovery volume reduction is set using disc screening in a kind of house refuse described in the invention
It is standby to be efficiently separated by the rotation rubbish of irregular disc, and by aperture between disk to material screening, this structure
The screening effect of material is effectively increased with principle while reduces the own vol and floor space of equipment.
(3) method of ductile plastics recovery volume reduction utilizes near infrared light point in a kind of house refuse described in the invention
Optional equipment replaces selection by winnowing and hand picking, effectively increases the discrimination and separation velocity of plastics, thus improve the efficiency of separation and
The rate of recovery, while the manually direct contact for rubbish is avoided, improve automaticity.
(4) method of ductile plastics recovery volume reduction utilizes rinsing, low speed in a kind of house refuse described in the invention
Friction cleaning, high-speed friction cleaning, low speed friction cleaning, the combined type cleaning technique of rinsing clean to plastics, effectively improve
The cleaning dynamics of recycled plastic, more meet the condition to plastics volume reduction in rubbish.
(5) method of ductile plastics recovery volume reduction uses Electromagnetic Heating pair in a kind of house refuse described in the invention
Cleaning plastics directly carry out volume reduction, effectively reduce the long-time preheating needed for volume reduction machine start, reduce energy expenditure.Gone after volume reduction
Most moisture is removed, while substantially reduces the volume of plastics, more conducively stores and transports.Avoid because of plastics recovery yield not
The phenomenon of the production line fluctuations of service such as modeling is granulated or made caused by stably.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the invention can
To be mutually combined.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are only
It is to be described for the ease of description the invention with simplified, rather than indicates or imply that the device of meaning or element must be with spies
Fixed orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the invention.In addition, term " the
One ", " second " etc. is only used for describing purpose, and it is not intended that instruction or imply relative importance or it is implicit indicate it is indicated
Technical characteristic quantity.Thus, define the feature of " first ", " second " etc. can express or implicitly include one or
More this feature of person.In the description of the invention, unless otherwise indicated, " multiple " be meant that two or two with
On.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the invention
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
The method of ductile plastics recovery volume reduction, this method step are as follows in a kind of house refuse：
House refuse is weighed, house refuse is sent into breaker by conveyer after reaching preset weight,
Homogeneous is carried out in breaker to house refuse to crush, breaker uses twin shaft shearing-crushing mode, the granularity after crushing
No more than 200mm so that the separation that the rubbish more than complicated component, bagged articles is homogenized, be more beneficial at follow-up sorting
Reason.
Rubbish after will be broken, which is sent into combination magnetic plant, carries out magnetic separation, and combination magnetic plant includes suspension type permanent-magnet magnetic
Select machine and discharge end that the belt conveyor of magnet drum is set, deep layer can be carried out simultaneously to the house refuse bottom after crushing and top layer
Magnetic separation, effectively removes the ferromagnetic material in rubbish, and permanent magnetic separator magnetic field intensity is more than 1200Gs.Magnetic plant can be according to reality
Demand sets multistage, reaches the purpose of depth magnetic separation.
Rubbish after magnetic separation is subjected to disc screening, the screening of disc sieve sieves irregular disc away from for 80mm by disc
Spring conveying effect so that adhesion rubbish is separated, by garbage jumping to fluffy.The screening point that rubbish is sieved by disc
To sieve upper lightweight thing and sieving lower heavy thing, light materials are mainly plastics, paper and packing material etc. on sieve, sieve lower heavy substance and are mainly
Wet refuse based on perishable rubbish, sieve lower heavy thing and be sent into heavy thing collection system so as to the recycling of next step.
Bath processing is carried out to sieving upper lightweight thing, flushing device is giant, hydraulic giant pressure adjustable section, removes lightweight thing
The various foreign matters in surface, can the fragile materials and dirt etc. such as rotten organic matter and waste paper washed away with current, high-pressure flush can prevent different
Thing exists and influences the accuracy of infrared light choosing.
Unnecessary moisture can influence infrared light and select effect, so the lightweight thing after bath is carried out into drying and processing, remove light
Moisture content in matter thing, because the relatively low unsuitable high temperature drying of lightweight thing softening point, drying mode uses low-temperature air-cooling mode.
Lightweight thing after drying there may be to the phenomenon accumulated and stacked, tiling action is carried out to it using mechanical arm, will
Lightweight thing rubbish is placed on the conveyor belt, while it is tiled by mechanical arm, its height is less than preset height, is tiled
Good lightweight thing can carry out infrared light choosing.
Infrared light selects default sorting type to be PE and work as PP, high when infrared light identifies corresponding ductile plastics
Pressure air injection equipment can be collected into corresponding material collecting tank, remaining lightweight thing is sent out respectively to specifying ductile plastics to sort
Carry out next step recycling.
The ductile plastics product picked out is pre-processed, including ductile plastics are carried out finely to crush and clean, can
Modeling plastic crushing granularity is less than or equal to 60mm, the smaller heating volume reduction for being advantageous to next step of granularity.
Ductile plastics after broken need to be cleaned, and cleaning step includes rinsing, low speed friction cleaning, rubbed at a high speed successively
Wiping cleaning, low speed friction cleaning and rinsing, polish cleaning apparatus has circle tube inner wall, and circle tube inner wall is provided with inlet opening,
Bottom is provided with leaking hole, and circle tube inner wall is provided with friction mandrel, and friction mandrel is provided with friction plate, and friction rotating speed is when low speed cleans
300-400 revs/min, the rotating speed that rubs during high velocity sweep is 700-800 revs/min, the nothing inside ductile plastics after over cleaning
The heavy such as impurity, silt thing is sufficiently separated with ductile plastics, then volume reduction equipment is sent into by conveying worm, in course of conveying
While screw rod is extruded ductile plastics, the moisture content remained in ductile plastics is removed.
Pretreated ductile plastics particle will be passed through and carry out volume reduction treatment, volume reduction includes Electromagnetic Heating and air-cooled cutting,
Electromagnetic Heating temperature is 200 DEG C -220 DEG C, effectively reduces the long-time preheating needed for volume reduction machine start, reduces energy expenditure, can
Mould plastics and all melt laggard sector-style cold treatment, the ductile plastics progress of molten condition is qualitative, it is then fed into cutter device and enters
Row cutting, a diameter of 20mm of volume reduction grain after cutting.The volume of plastics is substantially reduced after volume reduction, more conducively stores and transports, keep away
Exempt from because plastics recovery yield is unstable and caused by be granulated or system modeling etc. production line fluctuation of service phenomenon.
The preferred embodiment of the invention is the foregoing is only, is not intended to limit the invention creation, it is all at this
Within the spirit and principle of innovation and creation, any modification, equivalent substitution and improvements made etc., the invention should be included in
Protection domain within.
Claims (10)
1. a kind of method of ductile plastics recovery volume reduction in house refuse, it is characterised in that：This method step is as follows：
(1) house refuse is weighed, house refuse is sent into breaker by conveyer after reaching preset weight；
(2) homogeneous is carried out to house refuse in breaker to crush；
(3) rubbish after will be broken, which is sent into combination magnetic plant, carries out magnetic separation；
(4) rubbish after magnetic separation is subjected to disc screening, the upper lightweight thing of sieve and the lower heavy thing of sieve is divided into after screening, sieves lower heavy thing
It is sent into heavy thing collection system；
(5) bath processing is carried out to sieving upper lightweight thing, removes lightweight thing Superficial Foreign Body；
(6) the lightweight thing after bath is subjected to drying and processing, removes moisture content in lightweight thing；
(7) the lightweight thing after drying is subjected to mechanical tiling, avoids the accumulation of lightweight thing from stacking；
(8) the lightweight thing after tiling is sent into infrared light optional equipment and carries out light choosing, picked out ductile plastics product and pass through high pressure
Ductile plastics product is carried out classification recovery by jet；
(9) ductile plastics of recovery are pre-processed, including ductile plastics is carried out finely to crush and clean；
(10) ductile plastics by pretreatment are subjected to volume reduction treatment, ductile plastics volume reduction particle is obtained after volume reduction.
2. the method for ductile plastics recovery volume reduction in a kind of house refuse according to claim 1, it is characterised in that：Step
(2) breaker in uses twin shaft shearing-crushing mode, and crushed particles degree is less than or equal to 200mm.
3. the method for ductile plastics recovery volume reduction in a kind of house refuse according to claim 1, it is characterised in that：Step
(3) the combination magnetic plant in selects permanent magnetic separator, and permanent magnetic separator magnetic field intensity is more than 1200Gs.
4. the method for ductile plastics recovery volume reduction in a kind of house refuse according to claim 1, it is characterised in that：Step
(4) the screening spacing that disc sieves in is 80mm, and disc is sieved garbage jumping to fluffy.
5. the method for ductile plastics recovery volume reduction in a kind of house refuse according to claim 1, it is characterised in that：Step
(5) flushing device in is giant.
6. the method for ductile plastics recovery volume reduction in a kind of house refuse according to claim 1, it is characterised in that：Step
(6) drying mode is dried using low-temperature air-cooling in.
7. the method for ductile plastics recovery volume reduction in a kind of house refuse according to claim 1, it is characterised in that：Step
(7) it will compress lightweight thing by mechanical arm in tile, and its tiling height is less than preset height.
8. the method for ductile plastics recovery volume reduction in a kind of house refuse according to claim 1, it is characterised in that：Step
(8) it is PE and PP that mid-infrared light, which selects default sorting type,.
9. the method for ductile plastics recovery volume reduction in a kind of house refuse according to claim 1, it is characterised in that：Step
(9) ductile plastics crushed particles degree is less than or equal to 60mm in, and cleaning step includes rinsing, low speed friction cleaning, rubbed at a high speed successively
Cleaning, low speed friction cleaning and rinsing are wiped, ductile plastics are sent into volume reduction equipment by conveying worm after cleaning, and screw rod is to plastic
Moisture content is removed while plastics are extruded.
10. the method for ductile plastics recovery volume reduction in a kind of house refuse according to claim 1, it is characterised in that：Step
Suddenly the volume reduction in (10) includes Electromagnetic Heating and air-cooled cutting, and Electromagnetic Heating temperature is 200 DEG C -220 DEG C, the volume reduction grain after cutting
A diameter of 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710475756.5A CN107344405B (en) | 2017-06-21 | 2017-06-21 | A kind of method of ductile plastics recycling volume reduction in house refuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710475756.5A CN107344405B (en) | 2017-06-21 | 2017-06-21 | A kind of method of ductile plastics recycling volume reduction in house refuse |
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| Publication Number | Publication Date |
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| CN107344405A true CN107344405A (en) | 2017-11-14 |
| CN107344405B CN107344405B (en) | 2019-05-21 |
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| CN201710475756.5A Active CN107344405B (en) | 2017-06-21 | 2017-06-21 | A kind of method of ductile plastics recycling volume reduction in house refuse |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091654A (en) * | 2022-08-24 | 2022-09-23 | 深圳市唯锐科技有限公司 | Plastic identification and classification system and method based on mid-infrared detector |
| ES2933394A1 (en) * | 2021-08-06 | 2023-02-07 | Pico Ignacio Guillem | Procedure for the recirculation of non-hygroscopic polymers from rigid food or industrial post-consumer plastic containers and system to carry out said procedure (Machine-translation by Google Translate, not legally binding) |
| CN117464869A (en) * | 2023-12-27 | 2024-01-30 | 山东佳纳环保科技有限公司 | Recycling treatment method of waste plastic garbage and application thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2933394A1 (en) * | 2021-08-06 | 2023-02-07 | Pico Ignacio Guillem | Procedure for the recirculation of non-hygroscopic polymers from rigid food or industrial post-consumer plastic containers and system to carry out said procedure (Machine-translation by Google Translate, not legally binding) |
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| CN117464869A (en) * | 2023-12-27 | 2024-01-30 | 山东佳纳环保科技有限公司 | Recycling treatment method of waste plastic garbage and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107344405B (en) | 2019-05-21 |
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