Plastic particle processing recycling device and processing method

Abstract

The application discloses a plastic particle processing and recycling device and a processing method, and particularly relates to a plastic recycling device, which comprises a centrifugal dehydration bin and a sorting bin. A discharge pipe is fixedly connected to the sorting bin, and a distribution groove is formed in the discharge pipe. After dehydration in the centrifugal dehydration bin, plastic pieces enter the discharge pipe from the sorting bin, and are turned over along the discharge pipe to enter or pass through the distribution groove. When the dehydration plastic pieces of different sizes are output from the discharge pipe, the plastic pieces are turned over in the discharge pipe. At this time, the plastic pieces of different sizes encounter different resistance when being turned over and flying. Large plastic pieces fall from the distribution groove, and small plastic pieces continue to fly and are output from the discharge pipe. After separation, the plastic pieces are easier to control the temperature during pressure granulation, and are not prone to the conditions of bubbles, distortion and excessive shape change.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plastic recycling, in particular to a plastic particle processing and recycling device and method. BACKGROUND

[0002] Plastic recycling is to process waste plastics through multiple processes to produce plastic particles that can be directly used, achieving the purpose of turning waste into treasure.

[0003] According to patent number CN108943489A, published (announced) on December 7, 2018, a kind of waste plastic recycling processing and recycling method is disclosed, comprising the following steps: a: the waste plastics collected from waste plastic source is transported to waste recovery device, and the waste plastics are sorted, dusted and pretreated;B: the pretreated waste is melted by furnace and extruded into strip by extruding device;C: the plastic extruded into strip is dried by centrifugal dewatering device, and the dried plastic is transported to cutting forming device;D: the cutting forming device cuts the strip-shaped plastic into granular, and is collected to storage tank;E: the finished product in storage tank is packaged.The present application adopts PLC control system to carry out centralized monitoring, management and automatic program control, realizes the intelligent cleaning of production device, guarantees the processing quality of product, and realizes the resource utilization of waste plastics, which realizes the resource recycling of waste materials generated by plastic factory, saves production cost for plastic factory, and improves economic benefit.

[0004] In the prior art including the above patent, the plastic is selected after recycling, and the plastic of different properties such as PP and Pet is separated, and after recycling, it is crushed and washed, and then dehydrated by centrifugal fan and put into screw extruder to produce plastic particles, but the plastic is crushed into plastic pieces of different sizes, when the plastic pieces of different sizes are put into the screw extruder, the large plastic pieces are easily changed in shape due to uneven heat distribution, and when the temperature is increased, the small plastic pieces are easily deformed and twisted. SUMMARY

[0005] The present application provides a plastic particle processing and recycling device and method to solve the above problems.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme: a plastic particle processing and recycling device, comprising a centrifugal dewatering bin and a sorting bin, a discharge pipe is fixedly connected to the sorting bin, and a distribution slot is formed in the discharge pipe.

[0007] Wherein: the plastic pieces are dehydrated in the centrifugal dewatering bin, enter the discharge pipe from the sorting bin, and are turned over along the discharge pipe to enter or pass through the distribution slot.

[0008] As preferred, the bottom surface of the discharge pipe is provided with a guide slope, and an end of the guide slope is provided with a limiting protrusion, and the plastic sheet is flipped over the limiting protrusion.

[0009] As preferred, the centrifugal dewatering bin includes a water screening cover and a water collecting cover, and a wind material pipe for feeding is fixedly connected to the water screening cover, and the plastic sheet moves along the inner wall of the water screening cover and is flipped over at a predetermined position by airflow.

[0010] As preferred, the water screening cover is provided with limiting slopes staggered thereon, and the high points of the limiting slopes are directed toward the wind material pipe, and a semi-annular air cover for continuous air supply is arranged in the water screening cover.

[0011] As preferred, the sorting bin is provided with a material collecting pipe extending into the water screening cover, and a plurality of limiting convex balls are arranged on the water screening cover at the top of the material collecting pipe, and the plastic sheet moves along or falls off the limiting convex balls.

[0012] As preferred, the sorting bin includes a circulating cover and a sorting pipe connected to the discharge pipe, and a multi-directional combined air outlet pipe is arranged in the circulating cover, and the sorting pipe limits the plastic sheet to enter the discharge pipe in sequence.

[0013] As preferred, the sorting pipe feeding port is rotatably provided with a push plate, and an elevated slope is arranged at one end of the push plate, and the plastic sheet pushes against the push plate to drive the elevated slope to extend into the circulating cover, so that the subsequent plastic sheet is flipped over the sorting pipe.

[0014] As preferred, a connecting air pipe is arranged between the sorting bin and the discharge pipe, and air outlet of the connecting air pipe limits the plastic sheet to adhere to the bottom of the discharge pipe.

[0015] As preferred, the semi-annular air cover is provided with an inclined plane on the water screening cover, and a partition plate is arranged in the semi-annular air cover, and the partition plate guides part of the airflow to the inclined plane.

[0016] A plastic particle processing method includes the plastic particle processing and recycling device in the above scheme, and specifically includes the following steps:

[0017] S01, crushing waste plastic products by a crusher to obtain plastic sheets of different sizes;

[0018] S02, the plastic sheets are put into a stirring pool for pre-cleaning, and then put into an ultrasonic pool for fine cleaning;

[0019] S03, the cleaned plastic sheets are put into a centrifugal dewatering bin for dewatering, and the dewatered plastic sheets are transported to a discharge pipe through a sorting bin;

[0020] S04, the plastic sheet is screened through the discharge pipe to obtain two types of plastic sheet, and the two types of plastic sheet are extruded into plastic particles through plastic screw extruders with different temperatures.

[0021] In the above technical solution, the plastic particle processing and recycling device and the processing method provided by the application have the following beneficial effects: when the plastic sheets of different sizes after dehydration are output through the discharge pipe, the plastic sheets will turn over in the discharge pipe, at this time, the plastic sheets of different sizes will encounter different resistance when turning over and flying, and the plastic sheets with large area will fall from the distribution chute, while the plastic sheets with small area will continue to fly and be output from the discharge pipe. The separated plastic sheets are easier to control the temperature during pressure granulation, and are less likely to have bubbles, twisting deformation and excessive shape change. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0023] Figure 1 The overall schematic diagram provided for the embodiments of the present application;

[0024] Figure 2 The explosion schematic diagram of the centrifugal dehydration bin provided for the embodiments of the present application;

[0025] Figure 3 The Figure 2 The enlarged schematic diagram of A in the middle;

[0026] Figure 4 The structural schematic diagram of the sieve cover and the material collecting pipe provided for the embodiments of the present application;

[0027] Figure 5 The explosion schematic diagram of the sorting bin provided for the embodiments of the present application;

[0028] Figure 6 The cross-sectional schematic diagram of the centrifugal dehydration bin provided for the embodiments of the present application;

[0029] Figure 7 The structural schematic diagram of the sieve cover and the circulating cover provided for the embodiments of the present application;

[0030] Figure 8 The cross-sectional schematic diagram of the sorting bin provided for the embodiments of the present application;

[0031] Figure 9 The Figure 8 The enlarged schematic diagram of B in the middle;

[0032] Figure 10 TheFigure 8 Amplified schematic view at C;

[0033] Figure 11 Overall cross-sectional schematic view provided for the embodiments of the present application.

[0034] Legend:

[0035] 1, centrifugal dewatering bin; 10, first cover plate; 11, sieve cover; 110, feeding opening; 111, limiting slope; 112, water passing groove; 113, inclined plane; 114, round corner; 115, limiting convex ball; 12, water collecting cover; 121, collecting ring; 13, semi-annular air cover; 131, inclined air outlet; 132, partition plate; 14, first annular guide cover; 16, air-material pipe; 161, air inlet; 162, material inlet; 2, sorting bin; 20, second cover plate; 21, circulating cover; 211, air vent; 22, material collecting pipe; 23, second annular guide cover; 24, sorting pipe; 241, rotating shaft; 242, elevated slope; 243, push plate; 25, multi-directional combined air outlet pipe; 251, arc-shaped air outlet; 3, material outlet pipe; 31, connecting air pipe; 311, affixed air outlet; 32, guide slope; 321, limiting convex; 33, material distribution groove. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the present disclosure clearer, the technical scheme of the embodiments of the present disclosure will be described clearly and completely below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without any inventive effort fall within the scope of protection of the present disclosure.

[0037] Embodiment one

[0038] As shown in the drawings, a plastic particle processing and recycling device includes a centrifugal dewatering bin 1 and a sorting bin 2, the sorting bin 2 is fixedly connected with a material outlet pipe 3, and the material outlet pipe 3 is provided with a material distribution groove 33. Figures 1-11

[0039] Among them: the plastic sheet is dewatered in the centrifugal dewatering bin 1, enters the material outlet pipe 3 from the sorting bin 2, and is flipped to enter or pass through the material distribution groove 33 along the material outlet pipe 3.

[0040] Specifically, the centrifugal dewatering bin 1 and the sorting bin 2 are connected, the material outlet pipe 3 is a long channel, when the plastic sheet is sprayed out of the material outlet pipe 3 along with the airflow, the plastic sheet will be separated from the bottom of the material outlet pipe 3 and move in the air, and gradually fall along with the dissipation of the push resistance of the airflow and the air resistance, so as to screen the plastic sheets with different areas through the air resistance.

[0041] ​Further, the discharge pipe 3 is a long pipe, and a plurality of small air outlets can be formed on the side wall of the discharge pipe 3 to share the air flow output from the sorting bin 2 and reduce the pushing force of the air flow on the plastic sheet.

[0042] In the above technical solution, when the plastic sheets of different sizes are output from the discharge pipe 3, the plastic sheets will be flipped in the discharge pipe 3. At this time, the plastic sheets of different sizes will encounter different resistance when flying, and the large-area plastic sheets will fall from the discharge pipe 3 first due to the large resistance, while the small-area plastic sheets will continue to fly and be output from the discharge pipe 3. In this way, the large-area plastic sheets and the small plastic sheets are separated, and the separated plastic sheets are melted in batches when being pressed and granulated, so that the temperature control is easier, and the problems of bubbles, distortion and excessive shape change are less likely to occur.

[0043] As an embodiment provided by the present application, the bottom surface of the discharge pipe 3 is provided with a guide slope 32, and the end of the guide slope 32 is provided with a limiting protrusion 321, and the plastic sheet is flipped with the limiting protrusion 321.

[0044] Specifically, the angle of the guide slope 32 is 3°-5°, the low position of the guide slope 32 faces the sorting bin 2, and the end of the guide slope 32 (i.e. the high position) is provided with a limiting protrusion 321. When the plastic sheet moves along the bottom of the discharge pipe 3 with the air flow, the plastic sheet slides along the low position of the guide slope 32 to lift one end of the plastic sheet. The lifted plastic sheet continues to move and is flipped by the air flow to separate from the guide slope 32 after the other end of the plastic sheet is lifted due to inertia and abuts against the limiting protrusion 321, so that the plastic sheet is flipped in the discharge pipe 3, and the plastic sheet is screened by the resistance.

[0045] As an embodiment provided by the present application, the centrifugal dehydration bin 1 includes a sieve cover 11 and a water collecting cover 12, the sieve cover 11 is fixedly connected with an air material pipe 16 for feeding, and the plastic sheet moves along the inner wall of the sieve cover 11 and is flipped at a predetermined position with the air flow.

[0046] Specifically, the sieve water cover 11 is provided with water passing grooves 112 in a circumferential array, which are used for airflow to pass through to carry water droplets on the plastic sheet to separate, so that the water droplets enter the collection ring 121 on the water collecting cover 12 to be uniformly collected. The sieve water cover 11 is provided with a feeding opening 110, and the air material pipe 16 is arranged in the feeding opening 110. The air material pipe 16 is provided with an air inlet 161 and a feeding port 162. The air inlet 161 is connected with a fan, so that the plastic sheet in the feeding port 162 is carried by airflow to the sieve water cover 11 for conveying. The plastic sheet moves along the inner wall of the sieve water cover 11 and is turned over at a predetermined position, so that the turnover is realized, the water on the plastic sheet is accelerated to separate, the dehydration step is accelerated, the dehydration efficiency of the centrifugal dehydration bin 1 is increased, and the first annular guide cover 14 is symmetrically arranged on the sieve water cover 11. The first annular guide cover 14 is used for limiting airflow and keeping the plastic sheet adhering to the inner wall of the sieve water cover 11.

[0047] Further, the sieve water cover 11 is provided with limiting slopes 111 arranged in an interlaced manner. The predetermined position is the area where the limiting slopes 111 are located. The limiting slopes 111 are linearly arranged along the central axis of the sieve water cover 11. The number of linear arrays is not less than two groups, and the two groups of limiting slopes 111 are arranged in an interlaced manner. When the plastic sheet is pushed to the area where the limiting slopes 111 are located by airflow, most of the plastic sheets are limited by the limiting slopes 111. The high point of the limiting slope 111 is directed to the air material pipe 16 (i.e., the high point is directed to the running direction of the plastic sheet), so that one end of the plastic sheet is turned over by the limiting slope 111 as a fulcrum, and the turnover of the plastic sheet is realized.

[0048] The sieve water cover 11 is provided with a semi-annular air cover 13 for continuous air outlet. The semi-annular air cover 13 is provided with inclined air outlets 131 in a circumferential array. The air outlet direction of the inclined air outlet 131 is the same as the moving direction of the plastic sheet. The semi-annular air cover 13 is connected with another fan to compensate for the airflow running away along the water passing groove 112 and limit the plastic sheet from continuously moving along the inner wall of the sieve water cover 11.

[0049] Further, the sieve water cover 11 is provided with a first cover plate 10 for plugging and covering to reduce airflow escape.

[0050] As an embodiment provided by the application, the sorting bin 2 is provided with a material collecting pipe 22 extending into the sieve water cover 11. The sieve water cover 11 is provided with limiting convex balls 115 at the top of the material collecting pipe 22. The plastic sheet moves or falls along the limiting convex balls 115.

[0051] Specifically, a partition is provided between the sorting chamber 2 and the water sieve 11, and the receiving pipe 22 is set on the partition. The water sieve 11 has an inclined plane 113, and a rounded corner 114 is provided between the inclined plane 113 and the inner wall of the water sieve 11. Several limiting protrusions 115 are set on the inclined plane 113. When the plastic sheet moves along the rounded corner 114 to the inclined plane 113 with the airflow, it will adhere to the inclined plane 113 due to water droplets and friction. When it encounters the limiting protrusions 115, the plastic sheet will bypass the limiting protrusions 115 while adhering to the inclined plane 113, and continue to move along the water sieve 11. When the water droplets on the plastic sheet have been removed by centrifugation, the plastic sheet is pushed by the airflow and still adheres to the inclined plane 113. However, when it encounters the limiting protrusions 115, it will be bounced off and fall into the receiving pipe 22 to enter the sorting chamber 2 for subsequent sorting.

[0052] As an embodiment of the present invention, the sorting chamber 2 includes a circulation cover 21 and a sorting pipe 24 connected to the discharge pipe 3. The circulation cover 21 is provided with a multi-directional combined air outlet pipe 25, and the sorting pipe 24 restricts the plastic sheets from entering the discharge pipe 3 in sequence.

[0053] Specifically, a second annular guide cover 23 is symmetrically arranged on the circulation cover 21, and an arc-shaped air outlet 251 is arranged in a circular array on the multi-directional combined air outlet 25. The multi-directional combined air outlet 25 is connected to the fan, which drives the airflow to be discharged along the arc-shaped air outlet 251 and is restricted by the second annular guide cover 23, so that the airflow circulates along the inner wall of the circulation cover 21. When the plastic sheet falls from the inclined plane 113 to the receiving pipe 22, it is discharged along the receiving pipe 22 to the circulation cover 21 and circulates with the airflow, thus entering the sorting pipe 24 and sequentially entering the discharge pipe 3 for subsequent screening operations.

[0054] Furthermore, a second cover plate 20 for sealing is provided on the circulation cover 21.

[0055] Furthermore, a rotating shaft 241 is provided on the deflector 243, and the deflector 243 is rotatably mounted on the feed end of the sorting tube 24, such as... Figure 10 As shown, one end of the lever 243 is provided with a lifting ramp 242, which faces the inlet of the sorting tube 24. When the plastic sheet is pushed into the sorting tube 24 by the airflow, the plastic sheet pushes against the lever 243 and flips over, thereby prying the lifting ramp 242 to extend into the circulation cover 21. When subsequent plastic sheets are pushed by the airflow, they will be lifted and flipped along the lifting ramp 242, thus passing over the sorting tube 24 and continuing to circulate along the sorting tube 24.

[0056] The silica gel elastic sheet is arranged between the dial plate 243 and the sorting tube 24, so that the plastic sheet can rebound quickly after passing through the dial plate 243, and the subsequent plastic sheet can pass through, thereby limiting the spacing between the plastic sheets output by the sorting tube 24, avoiding the impact of adjacent plastic sheets when they are too close, and thereby affecting the screening in the discharge pipe 3.

[0057] As an embodiment provided by the present application, the connecting air pipe 31 is arranged between the sorting bin 2 and the discharge pipe 3, and the air output by the connecting air pipe 31 limits the plastic sheet from adhering to the bottom of the discharge pipe 3.

[0058] Specifically, the circulating cover 21 on the sorting bin 2 is provided with a ventilation port 211 facing the connecting air pipe 31, the connecting air pipe 31 is connected with the connecting part of the discharge pipe 3 and the sorting tube 24, and the connecting air pipe 31 is provided with a plurality of adhering air ports 311. When the air flow in the circulating cover 21 circulates, it will enter the connecting air pipe 31 through the ventilation port 211 and be sprayed out from the adhering air port 311, so as to push the plastic sheet to adhere to the bottom of the discharge pipe 3, thereby ensuring that the plastic sheet will not be separated from the bottom in advance, and the screening precision is increased.

[0059] As the optimal embodiment provided by the present application, the semi-annular air cover 13 is provided with an inclined plane 113 on the screen water cover 11, and the semi-annular air cover 13 is provided with a partition plate 132, which guides part of the air flow to the inclined plane 113.

[0060] Specifically, as shown in the figure, Figure 6 the semi-annular air cover 13 is provided with an air duct, the air duct covers a plurality of inclined air outlets 131, and the partition plate 132 is arranged in the air duct and separates part of the air duct to supply the inclined plane 113, thereby specifically enhancing the air flow to the inclined plane 113 and maintaining the movement of the plastic sheet along the inclined plane 113.

[0061] First, the cleaned plastic pieces are put into the feed inlet 162 and the airflow driven by the air inlet 161 carries the plastic pieces in the feed inlet 162 into the water screen cover 11 for conveying. The plastic pieces move along the inner wall of the water screen cover 11. When the plastic pieces are pushed by the airflow to the area where the limiting slope 111 is located, one end of the plastic pieces will overturn around the limiting slope 111 as the pivot, realizing the overturning of the plastic pieces. The overturned plastic pieces are reattached to the water screen cover 11 and move along the fillet 114 to the inclined plane 113. When there are still water droplets on the plastic pieces, the water droplets and the friction will make the plastic pieces move along the inclined plane 113. At this time, when the plastic pieces meet the limiting convex ball 115, the plastic pieces will bypass the limiting convex ball 115 while still attached to the inclined plane 113, so as to continue to dehydrate along the water screen cover 11. When the water droplets on the plastic pieces have been separated by centrifugal force, the plastic pieces are still attached to the inclined plane 113 and move along the inclined plane 113. At this time, when the plastic pieces meet the limiting convex ball 115, the plastic pieces will be bounced and fall, so as to fall into the collecting pipe 22 and enter the sorting bin 2. The multi-directional combined air outlet pipe 25 in the sorting bin 2 blows air to make the airflow circulate along the inner wall of the circulating cover 21. The plastic pieces fall from the collecting pipe 22, move along the collecting pipe 22, and enter the sorting pipe 24 to circulate along the airflow, so as to enter the discharge pipe 3 in turn and move along the bottom of the discharge pipe 3. The plastic pieces slide along the low position of the guide slope 32 to lift one end of the plastic pieces. The lifted plastic pieces continue to move and lift the other end due to inertia, and are flipped to separate from the guide slope 32 by the airflow, realizing the overturning of the plastic pieces in the discharge pipe 3, so as to screen the plastic pieces by resistance.

[0062] Embodiment two

[0063] A plastic particle processing method, comprising the following steps:

[0064] S01, crushing the waste plastic products by a crusher to obtain plastic pieces of different sizes;

[0065] S02, putting the plastic pieces into a stirring pool for stirring to preliminarily remove floating and easily removable liquid, completing pre-washing, and then putting the washed plastic pieces into an ultrasonic pool for fine cleaning;

[0066] S03, putting the cleaned plastic pieces into a centrifugal dehydration bin 1 for dehydration, and conveying the dehydrated plastic pieces to a discharge pipe 3 through a sorting bin 2 to separate the intervals between the plastic pieces;

[0067] S04, screening the plastic pieces through the discharge pipe 3 to obtain two types of plastic pieces, i.e. large plastic pieces and small plastic pieces, and extruding the two types of plastic pieces through plastic screw extruders of different temperatures to make plastic particles, which can be more easily controlled in temperature.

[0068] The foregoing merely illustrates some exemplary embodiments of the application, and no doubt numerous modifications and alterations thereto will be apparent to those skilled in the art. Accordingly, the above description is intended for purposes of illustration only and should not be construed as limiting the scope of the application.

Claims

1. A plastic particle processing recycling apparatus, characterized by, Including centrifugal dehydration bin (1) and sequencing bin (2), sequencing bin (2) is fixedly connected with discharge pipe (3) on it, discharge pipe (3) is provided with split slot (33) on it; Wherein: plastic sheet is dehydrated in centrifugal dehydration bin (1) and enters discharge pipe (3) from sequencing bin (2), and overturns along discharge pipe (3) to enter or cross split slot (33); The bottom surface of the discharge pipe (3) is provided with a guide slope (32), and the end of the guide slope (32) is provided with a limiting protrusion (321), and the plastic sheet overturns with the limiting protrusion (321); The centrifugal dehydration bin (1) includes a sieve cover (11) and a water collecting cover (12), and the sieve cover (11) is fixedly connected with the air material pipe (16) for feeding, and the plastic sheet moves along the inner wall of the sieve cover (11) and overturns at the predetermined position by the airflow; The sieve cover (11) is provided with a limiting slope (111) arranged staggered, and the high point of the limiting slope (111) is towards the air material pipe (16), and the sieve cover (11) is provided with a semi-annular air cover (13) for continuous air outlet; The sequencing bin (2) is provided with a material collecting pipe (22) extending into the sieve cover (11), and the sieve cover (11) is provided with a plurality of limiting convex balls (115) located at the top of the material collecting pipe (22), and the sieve cover (11) is provided with an inclined plane (113), and a round corner (114) is arranged between the inclined plane (113) and the inner wall of the sieve cover (11), and the plurality of limiting convex balls (115) are arranged on the inclined plane (113), and the plastic sheet moves or falls along the limiting convex balls (115).

2. The plastic particle processing recycling device of claim 1, wherein, The sequencing bin (2) includes a circulating cover (21) and a sequencing pipe (24) connected with the discharge pipe (3), and the circulating cover (21) is provided with a multi-directional combined air outlet pipe (25), and the sequencing pipe (24) limits the plastic sheet to enter the discharge pipe (3) in sequence.

3. The plastic particle processing recycling device of claim 2, wherein, The sequencing pipe (24) is provided with a push plate (243) at the feeding port, and one end of the push plate (243) is provided with a lifting slope (242), and the plastic sheet pushes against the push plate (243), drives the lifting slope (242) to extend into the circulating cover (21), and makes the subsequent plastic sheet overturn and cross the sequencing pipe (24).

4. The plastic particle processing recycling device of claim 1, wherein, The sequencing bin (2) and the discharge pipe (3) are provided with a connecting air pipe (31), and the air outlet of the connecting air pipe (31) limits the plastic sheet to adhere to the bottom of the discharge pipe (3).

5. The plastic particle processing recycling device of claim 1, wherein, The semi-annular air cover (13) is provided with a partition plate (132), and the partition plate (132) guides part of the airflow to the inclined plane (113).

6. A method of processing plastic particles, characterized by The plastic particle processing and recycling device comprises the plastic particle processing and recycling device according to any one of claims 1-5, and comprises the following steps: S01, the waste plastic products are crushed by a crusher to obtain plastic sheets of different sizes; S02, the plastic sheets are put into a stirring pool for pre-cleaning, and then put into an ultrasonic wave pool for fine cleaning; S03, the cleaned plastic sheets are put into the centrifugal dehydration bin (1) for dehydration, and the dehydrated plastic sheets are sent to the discharge pipe (3) through the sequencing bin (2). S04, the plastic pieces are screened through the discharge pipe (3) to obtain two types of plastic pieces, and the two types of plastic pieces are extruded into plastic particles through plastic screw extruders with different temperatures.

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