CN116252411A - Mixed plastic refined automatic sorting system method - Google Patents
Mixed plastic refined automatic sorting system method Download PDFInfo
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- CN116252411A CN116252411A CN202111500805.9A CN202111500805A CN116252411A CN 116252411 A CN116252411 A CN 116252411A CN 202111500805 A CN202111500805 A CN 202111500805A CN 116252411 A CN116252411 A CN 116252411A
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- 229920003023 plastic Polymers 0.000 title claims abstract description 143
- 239000004033 plastic Substances 0.000 title claims abstract description 143
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 51
- 238000012856 packing Methods 0.000 claims abstract description 23
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 12
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 229920001903 high density polyethylene Polymers 0.000 claims description 32
- 239000004700 high-density polyethylene Substances 0.000 claims description 32
- 238000005303 weighing Methods 0.000 claims description 27
- 239000002699 waste material Substances 0.000 claims description 24
- 238000004806 packaging method and process Methods 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 7
- 239000006148 magnetic separator Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 230000002452 interceptive effect Effects 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 description 10
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- 238000011161 development Methods 0.000 description 3
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Images
Classifications
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- 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
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B15/00—Combinations of apparatus for separating solids from solids by dry methods applicable to bulk material, e.g. loose articles fit to be handled like bulk material
-
- 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
- B29B2017/0217—Mechanical separating techniques; devices therefor
- B29B2017/0224—Screens, sieves
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- 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
-
- 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)
- Sorting Of Articles (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention discloses a method of a mixed plastic refined automatic sorting system, which comprises an unpacking device, a foundation pit plate chain machine, a drum screen, a first manual sorting platform, a second manual sorting platform, a bidirectional belt device, a label removing device, a first vibration feeding device, a second vibration feeding device, a first photoelectric sorting device, a second photoelectric sorting device and an AI robot sorting device; the invention has the beneficial effects that after the non-plastic impurities in the mixed plastic are removed, the mixed plastic can be finely classified into multiple categories according to the same material and the same color. In an automatic packing link, orderly discharging is carried out according to the priority order through the priority order, a packing completion signal is given when the packing of the packer is completed, the system judges that the discharging condition of the storage bin is met again and carries out priority comparison, and the feeding and discharging processes are repeated after the discharging condition is confirmed. The design improves the operation efficiency of the process line, improves the economic benefit of factories and saves manpower and material resources.
Description
Technical Field
The invention relates to the technical field of plastic fine separation, in particular to a method of a mixed plastic fine automatic separation system.
Background
The sorting method of the waste plastics comprises floating and settling sorting, wind power sorting, electrostatic sorting, flotation method, manual sorting and the like. However, the methods have the defects of high energy consumption, low efficiency, secondary pollution and the like, and are difficult to adapt to the development requirements of the modern recycling industry.
Near infrared spectrum sorting technology is gradually applied in the middle and late stages of the last century, and along with the promotion effect of promulgation and implementation of national environmental protection laws and regulations, near infrared spectrum sorting is gradually one of the main technologies of plastic sorting, and is widely applied to the field of purification of mixed waste plastics. Meanwhile, with the development of the field of computer vision, computer technology and digital image processing technology are rapidly developed, so that a solid foundation is laid for the application of computer vision in the field of sorting and recycling waste plastic bottles. The technology takes image processing, image feature extraction technology and pattern recognition as technical support, obtains image features through processing the obtained images of the waste plastic bottles, and realizes classification and recognition of the images through image information and a classification algorithm. The sorting and recycling of the waste plastic bottles based on computer vision has the characteristics of rapidness, intelligence and the like. The method is beneficial to the large-scale recovery of the waste plastic bottles by a computer vision technology, and a large amount of manpower resources can be saved by replacing manpower with a machine, so that the method is in line with the development of society.
However, the intelligent sorting equipment at the present stage still has a plurality of defects: the identification accuracy is low; it is difficult to sort plastic bottles of various colors at a time; other types of plastic bottles except for the single plastic bottle which is completely de-labeled are difficult to identify, for example, a large number of plastic bottles enter a conveyor belt to generate overlapped plastic bottles, and sorting and recycling efficiency is low after a label removing machine is used for removing the plastic bottles which are not completely de-labeled. A single intelligent sorting device cannot meet the final product requirements.
The invention patent with the application number of CN202010242847.6 adopts a multi-stage electrostatic separation mode to automatically separate and collect different types of plastics.
The invention patent with the application number of CN202010060811.6 adopts the modes of crushing, sedimentation and electrostatic separation to classify waste plastics.
The plastic sorting method can realize plastic sorting, but can only separate plastics with different materials, has certain requirements on the moisture content of front-end plastics and the like, and cannot realize further refined sorting of plastics with the same material.
Disclosure of Invention
The invention aims to solve the problems, and designs a method for a mixed plastic refined automatic sorting system, which solves the problems of the prior background technology.
The technical scheme of the invention for achieving the purpose is as follows: the mixed plastic refined automatic sorting system comprises an unpacking device, a foundation pit plate chain machine, a rotary screen, a first manual sorting platform, a second manual sorting platform, a bidirectional belt device, a label removing device, a first vibration feeding device, a second vibration feeding device, a first photoelectric sorting device, a second photoelectric sorting device and an AI robot sorting device;
the unpacking device is positioned at the head end of the system and is suitable for unpacking the compressed and packed waste plastic raw materials;
the foundation pit plate chain machine and the unpacking device are also positioned at the system head end and are suitable for conveying unpacked bulk waste plastic raw materials;
the roller screen is connected to the downstream of the foundation pit plate chain machine and the unpacking device and is suitable for screening the waste plastic raw materials to remove impurities therein;
the first artificial sorting platform is connected to the downstream of the roller screen and is suitable for mixing large interfering objects in plastics and certain plastics needing special sorting;
the label removing machine is connected to the downstream of the first manual sorting machine through a bidirectional belt device and is suitable for removing label paper in the waste plastic bottles;
the first vibration feeding device is connected to the downstream of the label removing machine and is suitable for uniformly feeding to the first photoelectric sorting device;
the first photoelectric sorting device is connected to the downstream of the first vibration feeding device and is suitable for sorting out a specific plastic in the waste plastics;
the second vibration feeding device is arranged in parallel with the first feeding device and is suitable for uniformly feeding to the second photoelectric sorting device;
the second photoelectric sorting device is arranged in parallel with the first photoelectric sorting device and connected to the downstream of the second vibration feeding device, and is used for sorting out a certain specific plastic in the waste plastics;
the second manual sorting platform is connected to the downstream of the pair of the AI robot sorting devices at the downstream, and is suitable for rechecking and purifying the residual plastic;
the pair of AI robot sorting devices are connected in series, and two ends of the pair of AI robot sorting devices are respectively connected between the second photoelectric sorting device and the second manual sorting platform, so that the AI robot sorting devices are applicable to purifying the residual materials;
one side of the first manual sorting platform, the label removing machine, the first photoelectric sorting device, the second photoelectric sorting device, the pair of AI robot sorting devices and the second manual sorting platform are respectively provided with a plurality of PET temporary storage bins for temporarily storing various sorted PET plastics and recording weight data of single PET plastics;
one side of each of the PET temporary storage bins is connected with a first bagging machine, and the PET temporary storage bins are suitable for packaging PET plastics meeting weight conditions;
one side of the first photoelectric sorting device, the second photoelectric sorting device, the pair of AI robot sorting devices and the second manual sorting platform is respectively provided with a plurality of HDPE temporary storage bins which are used for temporarily storing various sorted HDPE plastics and recording weight data of the single HDPE plastics;
and one sides of the HDPE temporary storage bins are connected with a second packing machine, and the HDPE temporary storage bins are suitable for packing HDPE plastics meeting the weight condition.
Above-mentioned unpacking device, foundation ditch plate chain machine, drum sieve, first artifical sorting platform, second manual sorting platform, two-way belt device, take off mark device, first vibration feeder, second vibration feeder, first photoelectric sorting unit, second photoelectric sorting unit, AI robot sorting unit, a plurality of PET temporary storage feed bin, a plurality of HDPE temporary storage feed bin, all be provided with a plurality of band conveyer connections between first baling press and the second baling press upstream and downstream.
Be provided with the magnet separator between drum sieve and the manual sorting platform, the magnet separator is applicable to the magnetic substance of getting rid of in the material.
The first vibration feeding device and the second vibration feeding device are composed of a vibration feeding machine and a vibration feeding channel.
The first photoelectric separation device and the second photoelectric separation device are both composed of a photoelectric separation machine and a photoelectric separation channel, the photoelectric separation channel is connected with the vibration feeding channel, and the photoelectric separation channel is arranged on the vibration feeding channel.
A plurality of PET temporary storage bins and a plurality of HDPE temporary storage bins are all provided with weighing function.
The application method of the mixed plastic refined automatic sorting system comprises the following steps: step S1, sorting and feeding, step S2, screening and separating, step S3, label removing and separating, step S4, photoelectric sorting, step S5, AI robot sorting, step S6, weighing and packaging;
step S1: feeding according to the packing condition of waste plastics, placing the packed materials into an unpacking device for unpacking, directly pouring the plastic in bulk into a foundation pit plate chain machine, and conveying the unpacked plastic and the plastic in bulk to the next link through a belt conveyor;
step S2: filtering the waste plastics through a rotary screen, removing magnetic substances in the materials through a magnetic separator, and finally removing large interfering substances in the mixed plastics and certain plastics needing special sorting on a first manual sorting platform;
step S3: the plastic screened in the step 2 is added into a bidirectional belt device and is used for conveying the material with the large proportion of PET plastic to a label removing machine for label removing treatment, and the material with the large proportion of HDPE plastic passes through the label removing device in the other direction and directly enters the photoelectric sorting step;
step S4: the plastics after the step 3 are added into a process structure formed by a vibration feeding device and a photoelectric sorting device, the plastics are uniformly fed into the photoelectric sorting device through the vibration feeding device, the two photoelectric sorting devices share 2 channels, the channel 1 is used for sorting out certain plastics in materials, and the channel 2 is used for sorting out other plastics in materials;
step S5: conveying the plastics obtained in the step 4 to an AI robot sorting device by a belt conveyor, purifying and further sorting the residual materials, and finally rechecking and purifying the residual plastics by an operator of a second manual sorting platform;
step S6: the separated plastics in the whole process enter respective temporary storage bins respectively, and after the packing conditions are met, the materials are conveyed to a packer for packing according to the set priority order.
The configuration of the stations of the first manual sorting platform in the step S2 is preferably set to two stations.
In the step S4, the number of the vibration feeding devices and the number of the photoelectric sorting devices are two, and the two vibration feeding devices and the two photoelectric sorting devices are staggered and connected in series.
The temporary storage bins in the step S6 are divided into two main types, one type is a PET waste plastic temporary storage bin, and the other type is an HDPE temporary storage bin.
The mixed plastic refined automatic sorting system manufactured by the technical scheme of the invention can solve the problems that the mixed plastic refined sorting and the plastic sorting at the same time cannot be effectively finished in the prior art, and can carry out multi-grade refined sorting according to the same material and the same color after removing non-plastic impurities from the mixed plastic.
In an automatic packing link, orderly discharging is carried out according to the priority order through the priority order, a packing completion signal is given when the packing of the packer is completed, the system judges that the discharging condition of the storage bin is met again and carries out priority comparison, and the feeding and discharging processes are repeated after the discharging condition is confirmed. The design improves the operation efficiency of the process line, improves the economic benefit of factories and saves manpower and material resources.
Drawings
FIG. 1 is a system process flow diagram of a method for a hybrid plastic refinement automated sorting system according to the present invention.
FIG. 2 is a plan view of a method of the present invention for a hybrid plastic refinement automated sorting system.
In the figure: 1. unpacking device; 2. a foundation pit plate chain machine; 3. a drum screen; 4. a first manual sorting platform; 5. a second manual sorting platform; 6. a bidirectional belt device; 7. a label removing device; 8. a first vibratory feed device; 9. a second vibratory feeding device; 10. a first photoelectric sorting device; 11. a second photoelectric sorting device; 12. AI robot sorting device; 13. a magnetic separator; 14. a belt conveyor; 15. PET temporary storage bin; 16. HDPE temporary storage bin; 17. a first bagging machine; 18. and a second packer.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings, as shown in fig. 1-2.
The invention provides an automatic sorting system for mixed plastics, which comprises an unpacking device (1), a foundation pit plate chain machine (2), a drum screen (3), a magnetic separation device, a manual sorting platform, a bidirectional belt device (6), a label removing device (7), a vibration feeding device, a photoelectric sorting device, an AI robot sorting device (12) and a weighing bin.
The automatic mixed plastic sorting system is provided with two feeding ports, namely a compressed packaging mixed plastic feeding port and a bulk (non-packaging) mixed plastic feeding port. The compressed packaging mixed plastic is conveyed to a double-screw unpacking machine after being unpacked and sheared on a unpacking platform belt conveyor (14), the materials are evenly scattered and fed, the bulk (unpacked) mixed plastic is cooperatively processed with the mixed plastic after double-screw unpacking after being fed through a foundation pit plate chain machine (2), and the mixed plastic is conveyed to a roller screen (3) through the belt conveyor (14) 1 to remove stones, dust, fallen bottle caps and finely crushed metals.
The materials processed by the drum screen (3) are conveyed to a magnetic separator (13) through a belt conveyor (14) 2, and magnetic substances (mainly iron) in the materials are removed and then conveyed to a first manual sorting platform (4).
Specifically, a first manual sorting platform (4) is provided with 1-2 operation stations, and the main responsibility of operators in the manual sorting station is to sort out large interfering objects and PET oilcans in the mixed plastics;
the sorted PET oilcan is conveyed to the weighing bin 1 for temporary storage through the belt conveyor (14), and the rest materials are conveyed to the bidirectional belt conveyor through the belt conveyor (14) 4.
Specifically, the PET bottle takes up most of the materials, then is conveyed to the label removing machine through the bidirectional belt conveyor, the HPET bottle takes up most of the materials, then skips the label removing device (7) through the other direction, and directly enters the photoelectric sorting step through the belt conveyor (14) 5, so that the purposes of simplifying the flow and reducing the running cost are achieved.
The material after label removal is conveyed to a first vibration feeding channel in a first vibration feeder through a belt conveyor (14) 5, the material is uniformly conveyed to a first photoelectric separator channel in a high-speed belt conveyor to enter the first photoelectric separator, transparent PET in the material is separated and selected through the first photoelectric separator, and the material is conveyed to a corresponding weighing bin 2 through a corresponding belt conveyor (14) 6 for temporary storage.
Other materials are conveyed to a second vibration through a belt conveyor (14) 7 and a belt conveyor (14) 8, uniformly fed to a second photoelectric separator channel through a feeding channel, separated from transparent HDPE plastics in the materials through the second photoelectric separator, and conveyed to a weighing bin 3 for temporary storage through a belt conveyor (14) 9 and a belt conveyor (14) 10.
The rest materials after the transparent PET and the transparent HDPE plastics are separated are conveyed to a second vibration feeder through a belt conveyor (14) 11 and are evenly fed to the belt conveyor (14) 12 to enter a first AI sorting robot.
Specifically, the first AI sorting robot is mainly used for purifying the residual materials (grabbing the residual transparent PET and the residual transparent HDPE in the residual materials) and sorting PET blue and HDPE milky plastics in the materials. The transparent PET is conveyed to the weighing bin 2 through the belt conveyor (14) 13 for temporary storage, the transparent HDPE is conveyed to the weighing bin 3 through the belt conveyor (14) 14 for temporary storage, the PET blue is conveyed to the weighing bin 4 through the belt conveyor (14) 15 for temporary storage, and the HDPE milky plastic is conveyed to the weighing bin 5 through the belt conveyor (14) 16 for temporary storage.
The materials sorted by the first AI sorting robot are continuously conveyed to the second AI sorting robot through a belt conveyor (14), and PET green, PET mixed plastics, HDPE mixed plastics and PP plastics in the materials are sorted. The PET green plastic is conveyed to the weighing bin 6 for temporary storage through the belt conveyor (14), the HDPE plastic is conveyed to the weighing bin 7 for temporary storage through the belt conveyor (14) 18, the PET plastic is conveyed to the weighing bin 8 for temporary storage through the belt conveyor (14) 19, and the PP plastic is conveyed to the weighing bin 9 for temporary storage through the belt conveyor (14) 20.
The materials sorted by the second AI sorting robot are conveyed to a second manual sorting platform (5) through a belt conveyor (14) 21.
Specifically, the manual sorting position (1-2 operation stations are preset), and the main functions of operators in the manual sorting position are to review and purify the residual plastic.
The mixed plastics left after sorting are conveyed to the weighing bin 10 for temporary storage through the belt conveyor (14) 22 and the belt conveyor (14) 23.
Specifically, the materials selected in the whole process enter respective weighing bins respectively, and after the weight reaches the packing requirement, the materials are packed by a packer in time periods;
specifically, the manually sorted PET oilcan, label paper produced by a label removing machine, transparent PET, PET blue, PET green and PET mixed plastics respectively enter respective weighing bins, and the corresponding weighing bins 1, 2, 4, 6, 8 and 10 are PET temporary storage bins (15); when the packing requirement is met, packing is carried out through a first packing machine (17) according to the priority order. Transparent HDPE plastics, HDPE milky white plastics, HDPE miscellaneous plastics and PP plastics respectively enter respective weighing bins, the corresponding weighing bin 3, the corresponding weighing bin 5, the corresponding weighing bin 7 and the corresponding weighing bin 9 are HDPE temporary storage bins (16), and after the packaging requirement is met, the materials are packaged by a second packaging machine (18) according to the priority order.
Specifically, after the plastic bottle is processed by the front-end process, the plastic bottle enters specified finished product bins according to materials and colors respectively, when the bins reach preset blanking conditions, blanking reminding is triggered, and the plastic bottle is sequentially discharged according to the priority order through priority specification. If the weighing bin 1 and the weighing bin 2 meet the blanking condition simultaneously, the priority defaults to be that the number 1 is larger than the number 2, a belt conveyor (14) under the bin 1 is started and drives the material in the bin 1 to roll down onto a main conveyor belt below until the material is sent to a packer for packing, a packing completion signal is given when the packing of the packer is completed, the system judges that the blanking condition of the bin is met again and performs priority comparison, and the feeding and blanking processes are repeated after the priority comparison is confirmed.
The above technical solution only represents the preferred technical solution of the present invention, and some changes that may be made by those skilled in the art to some parts of the technical solution represent the principles of the present invention, and the technical solution falls within the scope of the present invention.
Claims (10)
1. The mixed plastic refined automatic sorting system is characterized by comprising an unpacking device (1), a foundation pit plate chain machine (2), a drum screen (3), a first manual sorting platform (4), a second manual sorting platform (5), a bidirectional belt device (6), a label removing device (7), a first vibration feeding device (8), a second vibration feeding device (9), a first photoelectric sorting device (10), a second photoelectric sorting device (11) and an AI robot sorting device (12);
the unpacking device (1) is positioned at the head end of the system and is suitable for unpacking the compressed and packed waste plastic raw materials;
the foundation pit plate chain machine (2) is positioned at the system head end as well as the unpacking device (1), and is suitable for conveying unpacked bulk waste plastic raw materials;
the rotary screen (3) is connected to the downstream of the foundation pit plate chain machine (2) and the unpacking device (1) and is suitable for screening waste plastic raw materials to remove impurities therein;
the first manual sorting platform (4) is connected to the downstream of the rotary screen (3) and is suitable for mixing large interfering objects in plastics and certain plastics needing special sorting;
the label removing machine is connected to the downstream of the first manual sorting machine through a bidirectional belt device (6) and is suitable for removing label paper in the waste plastic bottles;
the first vibration feeding device (8) is connected to the downstream of the label removing machine and is suitable for uniformly feeding to the first photoelectric sorting device (10);
the first photoelectric sorting device (10) is connected to the downstream of the first vibration feeding device (8) and is suitable for sorting out a specific plastic in the waste plastics;
the second vibration feeding device (9) is arranged in parallel with the first feeding device and is suitable for uniformly feeding to the second photoelectric sorting device (11);
the second photoelectric sorting device (11) is arranged in parallel with the first photoelectric sorting device (10) and is connected to the downstream of the second vibration feeding device (9) for sorting out a specific plastic in the waste plastics;
the second manual sorting platform (5) is connected to the downstream of the pair of the AI robot sorting devices (12) at the downstream, and is suitable for rechecking and purifying the residual plastic;
the pair of AI robot sorting devices (12) are connected in series, and two ends of the pair of AI robot sorting devices (12) are respectively connected between the second photoelectric sorting device (11) and the second manual sorting platform (5), so that the AI robot sorting devices are applicable to purifying residual materials;
one side of the first manual sorting platform (4), the label removing machine, the first photoelectric sorting device (10), the second photoelectric sorting device (11), the pair of AI robot sorting devices (12) and the second manual sorting platform (5) is respectively provided with a plurality of PET temporary storage bins (15) for temporarily storing various sorted PET plastics and recording weight data of the single PET plastics;
one side of each PET temporary storage bin (15) is connected with a first bagging machine (17) which is suitable for packaging PET plastics meeting the weight condition;
one side of the first photoelectric sorting device (10), the second photoelectric sorting device (11), the pair of AI robot sorting devices (12) and the second manual sorting platform (5) is respectively provided with a plurality of HDPE temporary storage bins (16) for temporarily storing various sorted HDPE plastics and recording weight data of single HDPE plastics;
one side of a plurality of HDPE temporary storage bins (16) is connected with a second packer (18), and the packing machine is suitable for packing HDPE plastics meeting weight conditions.
2. The system according to claim 1, wherein the unpacking device (1), the pit plate chain machine (2), the drum screen (3), the first manual sorting platform (4), the second manual sorting platform (5), the bidirectional belt device (6), the label removing device (7), the first vibration feeding device (8), the second vibration feeding device (9), the first photoelectric sorting device (10), the second photoelectric sorting device (11), the AI robot sorting device (12), the plurality of PET temporary storage bins (15), the plurality of HDPE temporary storage bins (16), the first bagging machine (17) and the second bagging machine (18) are connected by a plurality of belt conveyors (14) between upstream and downstream.
3. The automatic sorting system for refined mixed plastics according to claim 2, wherein a magnetic separator (13) is arranged between the drum screen (3) and the manual sorting platform, and the magnetic separator (13) is suitable for removing magnetic substances in materials.
4. A mixed plastics fine automated sorting system according to claim 3, characterised in that the first and second vibratory feeding devices (8, 9) consist of vibratory feeders and vibratory feeder channels.
5. The system according to claim 4, wherein the first and second photoelectric sorting devices (10, 11) are each composed of a photoelectric sorter and a photoelectric sorting channel, the photoelectric sorting channel is connected to a vibratory feeding channel, and the photoelectric sorting channel is mounted on the vibratory feeding channel.
6. The automatic sorting system for refined mixed plastics according to claim 5, characterized in that a plurality of PET temporary storage bins (15) and a plurality of HDPE temporary storage bins (16) are provided with weighing functions.
7. The application method of the mixed plastic refined automatic sorting system is characterized by comprising the following steps of: step S1, sorting and feeding, step S2, screening and separating, step S3, label removing and separating, step S4, photoelectric sorting, step S5, AI robot sorting, step S6, weighing and packaging;
step S1: feeding according to the packing condition of waste plastics, placing the packed materials into an unpacking device for unpacking, directly pouring the plastic in bulk into a foundation pit plate chain machine, and conveying the unpacked plastic and the plastic in bulk to the next link through a belt conveyor;
step S2: filtering the waste plastics through a rotary screen, removing magnetic substances in the materials through a magnetic separator, and finally removing large interfering substances in the mixed plastics and certain plastics needing special sorting on a first manual sorting platform;
step S3: the plastic screened in the step 2 is added into a bidirectional belt device and is used for conveying the material with the large proportion of PET plastic to a label removing machine for label removing treatment, and the material with the large proportion of HDPE plastic passes through the label removing device in the other direction and directly enters the photoelectric sorting step;
step S4: the plastics after the step 3 are added into a process structure formed by a vibration feeding device and a photoelectric sorting device, the plastics are uniformly fed into the photoelectric sorting device through the vibration feeding device, the two photoelectric sorting devices share 2 channels, the channel 1 is used for sorting out certain plastics in materials, and the channel 2 is used for sorting out other plastics in materials;
step S5: conveying the plastics obtained in the step 4 to an AI robot sorting device by a belt conveyor, purifying and further sorting the residual materials, and finally rechecking and purifying the residual plastics by an operator of a second manual sorting platform;
step S6: the separated plastics in the whole process enter respective temporary storage bins respectively, and after the packing conditions are met, the materials are conveyed to a packer for packing according to the set priority order.
8. The method according to claim 7, wherein the first manual sorting stage in step S2 is preferably configured with two stations.
9. The method of claim 8, wherein the number of the vibration feeding devices and the photoelectric sorting devices in the step S4 is two, and the two vibration feeding devices and the two photoelectric sorting devices are connected in series in a staggered manner.
10. The method of claim 9, wherein the temporary storage bins in step S6 are divided into two main types, one type is a PET waste plastic temporary storage bin, and the other type is an HDPE temporary storage bin.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117548465A (en) * | 2023-12-29 | 2024-02-13 | 太仓金马智能装备有限公司 | An intelligent processing system and method for resource-based disposal of recyclable materials |
| CN119387184A (en) * | 2025-01-03 | 2025-02-07 | 太初环境资源管理(浙江)有限公司 | A circulating sorting component and a turning type intelligent sorting system |
| CN119458690A (en) * | 2025-01-15 | 2025-02-18 | 太初环塑科技(浙江)有限公司 | Material sorting system and sorting method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117548465A (en) * | 2023-12-29 | 2024-02-13 | 太仓金马智能装备有限公司 | An intelligent processing system and method for resource-based disposal of recyclable materials |
| CN119387184A (en) * | 2025-01-03 | 2025-02-07 | 太初环境资源管理(浙江)有限公司 | A circulating sorting component and a turning type intelligent sorting system |
| CN119458690A (en) * | 2025-01-15 | 2025-02-18 | 太初环塑科技(浙江)有限公司 | Material sorting system and sorting method |
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