Flotation separation device for plastic particle processing

Abstract

The flotation separation device for plastic particle processing comprises a circulation box and a flotation box, the flotation box is fixedly installed on the outer surface of the upper end of the circulation box, two sets of inclined face bottom plates which are symmetrically arranged are arranged on the inner side of the flotation box, and a groove is formed in the position, between the two sets of inclined face bottom plates, of the inner side of the flotation box; a material fishing piece is movably installed on the upper portion of the flotation box, a first pump machine is fixedly installed on the outer surface of one end of the circulation box, a second pump machine is fixedly installed on one side of the first pump machine, strip-shaped water rows are arranged on the upper portion of the first pump machine and the upper portion of the second pump machine, and the strip-shaped water rows are fixedly installed on the upper portion of one end of the flotation box. According to the floating separation device, material taking operation of sinking and floating plastic particles can be completed through a lifting salvage and drifting separation method, meanwhile, the drifting separation method drives the floating plastic particles to move through flowing of a water body, the manual operation step of traditional salvage is omitted, and the working efficiency of the floating separation device is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of plastic pellet processing, and more specifically, it is a flotation separation device for plastic pellet processing. Background Technology

[0002] This flotation separation device for plastic granule processing is a flotation separation device used in the plastic granule processing process. It uses flotation to screen plastic granules based on their density, and can screen out plastic granules with lower density, making the screening operation more labor-saving.

[0003] Patent document CN217314468U discloses a plastic particle flotation device, including a first screening frame, a first collecting frame sleeved on the outer surface of the first screening frame, a second screening frame fixedly connected to the bottom end of the first screening frame, a second collecting frame sleeved on the outer surface of the second screening frame, a third screening frame fixedly connected to the bottom end of the second screening frame, and a third collecting frame sleeved on the outer surface of the third screening frame. This invention, through the arrangement of the first screening frame, second screening frame, third screening frame, screening screen, collecting base, rotating shaft, and drive motor, can achieve efficient screening of plastic particles. In actual use, it drives the first screening frame, second screening frame, third screening frame, and collecting base to rotate stably along the rotating shaft.

[0004] The aforementioned plastic particle flotation device has certain shortcomings in use. During screening, the plastic particles are separated into floating and settling parts. Users must first remove the floating particles and then retrieve the settling particles. This material handling is done manually, and the dispersed nature of the floating and settling particles increases the difficulty of material handling. Secondly, the device lacks a screening adjustment structure, making it unsuitable for different sized plastic particles during water separation. This causes some particles to fall off, reducing the device's applicability. Furthermore, the device is functionally limited, lacking an auxiliary drying structure to separate and dry the two types of plastic particles. It also cannot simultaneously clean the plastic particles during flotation, adding the need for subsequent washing steps. Summary of the Invention

[0005] The purpose of this invention is to provide a flotation separation device for processing plastic granules, which can solve the existing problems.

[0006] The problem solved by this invention is:

[0007] 1. During the use of the plastic particle flotation device, the plastic particles are divided into two parts: floating and settling. Users need to remove the floating plastic particles first and then retrieve the settling plastic particles. The material retrieval process is done manually, and the settling and floating plastic particles are relatively dispersed, which increases the difficulty of the plastic particle retrieval operation.

[0008] 2. The above-mentioned plastic particle flotation device does not have a screen material adjustment structure, which makes it unable to use plastic particles of different sizes when performing water separation operations. This causes some plastic particles to fall off easily, thereby reducing the applicability of the flotation device.

[0009] 3. The above-mentioned plastic particle flotation device has a single function and does not have an auxiliary drying structure, so it cannot classify and dry the two types of plastic particles. Secondly, it cannot simultaneously complete the washing operation of plastic particles during the flotation process, which increases the subsequent rubbing and washing steps of plastic particles.

[0010] The objective of this invention can be achieved through the following technical solutions:

[0011] A flotation separation device for processing plastic granules includes a circulation tank and a flotation tank. The flotation tank is fixedly installed on the upper outer surface of the circulation tank. The inner side of the flotation tank is provided with two sets of symmetrically arranged inclined bottom plates, and a groove is provided between the two sets of inclined bottom plates on the inner side of the flotation tank. A material scooping component is movably installed on the upper part of the flotation tank. A first pump is fixedly installed on the outer surface of one end of the circulation tank, and a second pump is fixedly installed on one side of the first pump. A strip-shaped water drain is provided on the upper part of both the first pump and the second pump. The strip-shaped water drain is fixedly installed at the upper part of one end of the flotation tank. A dewatering tank for use with the strip-shaped water drain is provided at the other end of the flotation tank. A drying box is fixedly installed on the outer surface of the other end of the circulation tank.

[0012] As a further technical solution of the present invention, the material retrieval component includes a lifting material box and two sets of sliding brackets. The lifting material box is movably installed on the lower part of the sliding brackets. The upper end of the material retrieval component and the flotation box are slidably connected through the sliding brackets. The two sets of sliding brackets are fixed together by a support rod. With the setting of the material retrieval component, the plastic particles that have sunk to the bottom can be retrieved. With the setting of two sets of inclined bottom plates, the plastic particles that have sunk to the bottom in the flotation box accumulate towards the middle. The lifting material box is moved to the groove in the middle of the flotation box by the material retrieval component, and the plastic particles that have sunk to the bottom are collected by the lifting material box.

[0013] As a further technical solution of the present invention, a winding rod is movably installed in the middle of the two sets of sliding brackets, and a first motor for driving the winding rod is provided on one side of one set of sliding brackets. The winding rod and the lifting material box are fixedly connected by two cables. An arc-shaped mesh plate is fixedly installed on the lower outer surface of the lifting material box. The user starts the first motor, which drives the winding rod to rotate using a gear structure. The lifting material box is wound or released by the winding rod, thereby adjusting the height of the lifting material box. When the lifting material box is raised, the water in the lifting material box can be discharged by the arc-shaped mesh plate, leaving only the plastic particles at the bottom of the lifting material box. The lifting material box is moved by the sliding brackets to the upper part of the drying box to discharge the plastic particles.

[0014] As a further technical solution of the present invention, a water inlet pipe is fixedly installed at one end of both the first pump and the second pump. The upper ends of the first pump and the second pump are connected and fixed to the strip water drain through a drain pipe. The user can use the water inlet pipe to draw water from the circulation tank by starting the first pump and the second pump, so that the water is discharged through the drain pipe and the strip water drain. The strip water drain is provided with long strip-shaped drain holes, so that the water can be discharged more evenly. When some plastic particles float on the water surface of the flotation tank, the water discharged by the strip water drain causes the plastic particles floating on the flotation tank to move with the water flow, so that the floating plastic particles move to the inside of the dewatering tank. The dewatering tank separates the water, and the water is discharged directly into the circulation tank through the bottom of the dewatering tank, so that the water circulates between the circulation tank and the flotation tank. The operation of picking up floating plastic particles is completed by the water flow itself.

[0015] As a further technical solution of the present invention, a screen is movably sleeved on the inner side of the lower end of the drain box. A first winding rod is installed at one end of the screen, and a second winding rod is installed at the other end of the screen. A second motor is provided at the ends of the first winding rod and the second winding rod. The second motor can drive the first winding rod to move and the second winding rod to rotate, thereby adjusting the usage area of ​​the screen. The mesh of the screen is divided into three groups of areas: large, medium and small. By moving the screen, the drain box can be adjusted according to the size of the plastic particles.

[0016] As a further technical solution of the present invention, a washing rotating rod is movably installed on the inner side of both the lifting material box and the draining box. Several sets of fixed side rods are fixedly installed on the side of the washing rotating rod. A driver is provided at one end of the washing rotating rod. The driver has a power supply box inside. The driver drives the washing rotating rod through a motor and gears, so that the washing rotating rod drives the several sets of fixed side rods to rotate. The fixed side rods drive the plastic particles in the lifting material box and the draining box, so that the plastic particles rub against each other. With the help of the water in the lifting material box and the draining box, the washing operation of the plastic particles is completed.

[0017] As a further technical solution of the present invention, a dryer is fixedly installed on the outer surface of one end of the drying box, and a side-rotating cover plate is movably installed on one side of the drying box. The surface of the side-rotating cover plate is provided with several sets of air vents. By starting the dryer, the user can cause the dryer to exhaust hot air into the drying box, and the exhaust operation is completed through the air vents of the side-rotating cover plate, so that the plastic in the drying box can be dried.

[0018] As a further technical solution of the present invention, a partition plate is fixedly installed in the middle of the upper end of the drying box, and a breathable mesh plate is fixedly installed at the lower end of the partition plate. An air inlet gap is provided between the breathable mesh plate and the drying box. The hot air generated by the dryer is discharged upward through the air inlet gap between the breathable mesh plate and the drying box, so that the plastic particles on the breathable mesh plate can be heated evenly. In addition, the partition plate can separate the two types of plastic particles.

[0019] As a further technical solution of the present invention, a feed hopper is fixedly installed on the upper part of one end of the flotation box, and a support slide for use with the material retrieval component is fixedly installed on the outer surface of the other end of the flotation box.

[0020] The beneficial effects of this invention are:

[0021] 1. By incorporating a material scooping component and a strip-shaped water deflector, this flotation separation device for plastic pellet processing allows for the collection of both bottom-set and floating plastic pellets through lifting and drift separation methods. The drift separation method utilizes the water's own flow to move the floating plastic pellets, eliminating the need for manual scooping and improving the efficiency of the flotation separation device. During operation, the material scooping component is used to scoop the bottom-set plastic pellets. Combined with two sets of inclined bottom plates, the bottom-set plastic pellets accumulate towards the center of the flotation tank. The material scooping component moves the lifting tank to the groove in the center of the flotation tank, collecting the bottom-set plastic pellets. The user starts the first motor, which drives the winding rod via a gear structure. The winding rod then retracts or releases the lifting tank, adjusting its height. When the lifting tank is raised, the arc-shaped mesh plate helps to lift the material. The water in the lowering tank is drained, leaving only the sunken plastic particles in the lifting tank. The lifting tank is moved by a sliding bracket to the top of the drying tank to discharge the plastic particles. Next, the user can start the first and second pumps to draw water from the circulation tank via the inlet pipe. The water is then discharged through a strip-shaped drain pipe with long, narrow drain holes for more even water distribution. When some plastic particles float on the surface of the flotation tank, the water discharged from the strip-shaped drain causes these particles to move with the current and into the draining tank. The draining tank separates the water, which is then discharged directly into the circulation tank through the bottom, circulating between the circulation tank and the flotation tank. This water flow allows for the removal of floating plastic particles, ensuring that both sunken and floating particles are easily removed, thus improving the effectiveness of the flotation separation device.

[0022] 2. When using the flotation separation device for plastic particle processing, the first and second winding rods optimize the use of the draining tank, allowing it to be adjusted arbitrarily according to the size of the plastic particles. During operation, the second motor drives the first winding rod to move and the second winding rod to rotate, thereby adjusting the usage area of ​​the screen. The mesh on the screen is divided into three groups of areas: large, medium, and small. By moving the screen, the draining tank can be adjusted accordingly according to the size of the plastic particles. The draining tank separates the residual water from the plastic particles, facilitating subsequent drying operations. Furthermore, to coordinate with the use of the strip water drain, the first and second pumps form a dual water supply structure, ensuring good drainage performance of the strip water drain.

[0023] 3. By setting up a drying box and a washing rotor, the flotation separation device for plastic granule processing can simultaneously dry both settled and floating plastic granules using the drying box. Furthermore, the washing rotor allows for the separate washing and rinsing of both settled and floating plastic granules, enhancing the functionality of the flotation separation device. During operation, the side-rotating cover plate has several sets of air vents. The user starts the dryer, causing it to exhaust hot air into the drying box, which is then vented through the air vents on the side-rotating cover plate, thus drying the plastic inside the drying box. Additionally, the permeable mesh plate and the drying... An air inlet gap is provided between the material bins. The hot air generated by the dryer is discharged upward through the air inlet gap between the air permeable mesh plate and the drying bin, so that the plastic granules on the air permeable mesh plate can be heated evenly. Secondly, the partition plate can separate the two types of plastic granules, optimizing the use effect of the drying bin itself. The driver drives the washing rotor through the motor and gears, so that the washing rotor drives several sets of fixed side rods to rotate. The fixed side rods drive the plastic granules in the lifting bin and the draining bin to make the plastic granules rub against each other. With the help of the water in the lifting bin and the draining bin, the plastic granules are cleaned. Attached Figure Description

[0024] The invention will now be further described with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure of a flotation separation device for processing plastic granules according to the present invention;

[0026] Figure 2 This is an overall structural diagram of the material retrieval component in a flotation separation device for processing plastic granules according to the present invention;

[0027] Figure 3 This is an overall structural diagram of the strip-shaped water tank in a flotation separation device for processing plastic granules according to the present invention;

[0028] Figure 4 This is an overall structural diagram of the dewatering tank in a flotation separation device for processing plastic granules according to the present invention;

[0029] Figure 5 This is an overall structural diagram of the drying box in a flotation separation device for processing plastic granules according to the present invention;

[0030] Figure 6 This is an overall structural diagram of the washing rotor in a flotation separation device for processing plastic granules according to the present invention.

[0031] In the diagram: 1. First pump; 2. Inlet pipe; 3. Circulation tank; 4. Dryer; 5. Drying box; 6. Support slide; 7. Drainage box; 8. Inclined bottom plate; 9. Material scooping component; 10. Feed hopper; 11. Flotation box; 12. Lifting material box; 13. Arc-shaped screen; 14. Washing rotating rod; 15. Cable; 16. Sliding seat; 17. Winding rod; 18. Support rod; 19. First motor; 20. Second pump; 21. Drain pipe; 22. Strip water drain; 23. First winding rod; 24. Second winding rod; 25. Second motor; 26. Screen; 27. Side rotating cover plate; 28. Divider plate; 29. ​​Breathable screen plate; 30. Fixed side rod; 31. Driver; 32. Power supply box. Detailed Implementation

[0032] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0033] like Figure 1-6 As shown, a flotation separation device for processing plastic granules includes a circulation tank 3 and a flotation tank 11. The flotation tank 11 is fixedly installed on the upper outer surface of the circulation tank 3. The inner side of the flotation tank 11 is provided with two sets of symmetrically arranged inclined bottom plates 8, and the inner side of the flotation tank 11 is provided with a groove between the two sets of inclined bottom plates 8. A material scooping component 9 is movably installed on the upper part of the flotation tank 11. A first pump 1 is fixedly installed on the outer surface of one end of the circulation tank 3. A second pump 20 is fixedly installed on one side of the first pump 1. A strip-shaped water drain 22 is provided on the upper part of both the first pump 1 and the second pump 20. The strip-shaped water drain 22 is fixedly installed at the upper part of one end of the flotation tank 11. A dewatering box 7 for use with the strip-shaped water drain 22 is provided at the other end of the flotation tank 11. A drying box 5 is fixedly installed on the outer surface of the other end of the circulation tank 3.

[0034] The material retrieval component 9 includes a lifting material box 12 and two sets of sliding brackets 16. The lifting material box 12 is movably installed on the lower part of the sliding brackets 16. The upper ends of the material retrieval component 9 and the flotation tank 11 are slidably connected through the sliding brackets 16. The two sets of sliding brackets 16 are fixed together by a support rod 18. With the setting of the material retrieval component 9, the plastic particles that have sunk to the bottom can be retrieved. With the setting of the two sets of inclined bottom plates 8, the plastic particles that have sunk to the bottom in the flotation tank 11 accumulate towards the middle. The material retrieval component 9 moves the lifting material box 12 to the groove in the middle of the flotation tank 11 and collects the plastic particles that have sunk to the bottom through the lifting material box 12.

[0035] A winding rod 17 is movably mounted in the middle of two sets of sliding brackets 16. A first motor 19 for driving the winding rod 17 is provided on one side of one set of sliding brackets 16. The winding rod 17 and the lifting material box 12 are connected and fixed by two cables 15. An arc-shaped mesh plate 13 is fixedly installed on the lower outer surface of the lifting material box 12. The user starts the first motor 19, which drives the winding rod 17 to rotate through the gear structure. The winding rod 17 winds up or releases the lifting material box 12, thereby adjusting the working height of the lifting material box 12. When the lifting material box 12 is raised, the water in the lifting material box 12 can be discharged by the arc-shaped mesh plate 13, leaving only the plastic particles at the bottom of the lifting material box 12. The lifting material box 12 is moved by the sliding brackets 16 to the upper part of the drying box 5 to discharge the plastic particles.

[0036] Water inlet pipes 2 are fixedly installed at one end of the first pump 1 and the second pump 20. The upper ends of the first pump 1 and the second pump 20 are connected and fixed to the strip water drain 22 through the drain pipes 21. The user can use the water inlet pipes 2 to draw water from the circulation tank 3 by starting the first pump 1 and the second pump 20. The water is discharged through the drain pipes 21 and the strip water drain 22. The strip water drain 22 is provided with long strip-shaped drainage holes so that the water can be discharged more evenly. When some plastic particles float on the water surface of the flotation tank 11, the water discharged by the strip water drain 22 makes the plastic particles floating on the flotation tank 11 move with the water flow. The floating plastic particles move to the inside of the drain tank 7. The drain tank 7 separates the water and discharges the water directly into the circulation tank 3 through the bottom of the drain tank 7. The water circulates between the circulation tank 3 and the flotation tank 11. The operation of picking up floating plastic particles is completed by the water flow itself.

[0037] A screen 26 is movably sleeved on the inner side of the lower end of the drain box 7. A first winding rod 23 is installed at one end of the screen 26, and a second winding rod 24 is installed at the other end. A second motor 25 is provided at the ends of the first winding rod 23 and the second winding rod 24. The second motor 25 can drive the first winding rod 23 to move and the second winding rod 24 to rotate, thereby adjusting the working area of ​​the screen 26. The mesh on the screen 26 is divided into three groups of areas: large, medium and small. By moving the screen 26, the drain box 7 can be adjusted according to the size of the plastic particles.

[0038] A washing rotating rod 14 is movably installed on the inner side of both the lifting material box 12 and the drain box 7. Several sets of fixed side rods 30 are fixedly installed on the side of the washing rotating rod 14. A driver 31 is provided at one end of the washing rotating rod 14. The driver 31 has a power supply box 32 inside. The driver 31 drives the washing rotating rod 14 through a motor and gears, so that the washing rotating rod 14 drives the several sets of fixed side rods 30 to rotate. The fixed side rods 30 drive the plastic particles in the lifting material box 12 and the drain box 7, so that the plastic particles rub against each other. With the help of the water in the lifting material box 12 and the drain box 7, the washing operation of the plastic particles is completed.

[0039] A dryer 4 is fixedly installed on the outer surface of one end of the drying box 5. A side-rotating cover plate 27 is movably installed on one side of the drying box 5. The surface of the side-rotating cover plate 27 is provided with several sets of air vents. The user starts the dryer 4, which discharges hot air into the drying box 5. The air is discharged through the air vents of the side-rotating cover plate 27, thus drying the plastic in the drying box 5.

[0040] A partition plate 28 is fixedly installed in the middle of the upper end of the drying box 5, and a breathable mesh plate 29 is fixedly installed in the lower end of the partition plate 28. An air inlet gap is provided between the breathable mesh plate 29 and the drying box 5. The hot air generated by the dryer 4 is distributed upward through the air inlet gap between the breathable mesh plate 29 and the drying box 5, so that the plastic particles on the breathable mesh plate 29 can be heated evenly. In addition, the partition plate 28 can separate the two types of plastic particles.

[0041] A feed hopper 10 is fixedly installed on the upper part of one end of the flotation box 11, and a support slide 6 for use with the material scooping component 9 is fixedly installed on the outer surface of the other end of the flotation box 11.

[0042] This flotation separation device for plastic pellet processing, by incorporating a material scooping component 9 and a strip-shaped water deflector 22, allows for the retrieval of both bottom-set and floating plastic pellets through a combination of lifting and drift separation. The drift separation method utilizes the water's own flow to move the floating plastic pellets, eliminating the need for manual scooping and improving the efficiency of the flotation separation device. During operation, the material scooping component 9 is first used to retrieve the bottom-set plastic pellets... The retrieval operation, combined with the two sets of inclined bottom plates 8, causes the plastic particles that have sunk to the bottom of the flotation tank 11 to accumulate towards the center. The lifting material box 12 is moved to the groove in the center of the flotation tank 11 using the material retrieval component 9. The lifting material box 12 collects the sunken plastic particles. The user starts the first motor 19, which drives the winding rod 17 to rotate via a gear structure. The winding rod 17 winds up or releases the lifting material box 12, thereby adjusting its operating height. When the lifting material box 12 is raised, the arc-shaped mesh plate 13... The system can drain the water from the lifting material box 12, leaving only the settled plastic particles inside. The lifting material box 12 is then moved to the top of the drying box 5 via the sliding bracket 16, discharging the plastic particles. Next, the user can activate the first pump 1 and the second pump 20 to draw water from the circulation box 3 using the water inlet pipe 2. This water is then discharged through the drain pipe 21 and the strip-shaped drain 22, which has elongated drain holes for more even water distribution. When some plastic particles float... When floating on the water surface of the flotation tank 11, the water discharged by the strip-shaped water outlet 22 causes the floating plastic particles on the flotation tank 11 to move with the water flow, so that the floating plastic particles move to the inside of the drain tank 7. The drain tank 7 separates the water, and the water is discharged directly into the circulation tank 3 through the bottom of the drain tank 7, so that the water circulates between the circulation tank 3 and the flotation tank 11. The water flow itself completes the material removal operation of the floating plastic particles, so that both the bottom and floating plastic particles can be easily removed, improving the use effect of the flotation separation device.

[0043] When the flotation separation device for plastic particle processing is used, the first winding rod 23 and the second winding rod 24 can optimize the use of the draining tank 7, allowing the draining tank 7 to be adjusted arbitrarily according to the size of the plastic particles. During operation, the second motor 25 can drive the first winding rod 23 to move and the second winding rod 24 to rotate, thereby adjusting the usage area of ​​the screen 26. The mesh on the screen 26 is divided into three groups of large, medium and small areas. By moving the screen 26, the draining tank 7 can be adjusted accordingly according to the size of the plastic particles. The draining tank 7 separates the residual water in the plastic particles, facilitating subsequent drying operations. Secondly, in order to cooperate with the use of the strip water drain 22, the first pump 1 and the second pump 20 form a dual water supply structure, so that the strip water drain 22 can maintain a good drainage effect.

[0044] By setting up the drying box 5 and the washing rotor 14, when using this flotation separation device for plastic granule processing, the drying box 5 can simultaneously dry both the settled and floating plastic granules. Furthermore, in conjunction with the washing rotor 14, the settled and floating plastic granules can be sorted and washed, enhancing the functionality of the flotation separation device. During operation, the surface of the side-rotating cover plate 27 has several sets of air vents. The user starts the dryer 4, causing it to exhaust hot air into the drying box 5. The exhaust is completed through the air vents of the side-rotating cover plate 27, thus drying the plastic inside the drying box 5. Additionally, a permeable mesh plate 29 is installed between the drying box 5 and the permeable mesh plate 29. With an air inlet gap, the hot air generated by the dryer 4 is discharged upward through the air inlet gap between the air permeable mesh plate 29 and the drying box 5, so that the plastic particles on the air permeable mesh plate 29 can be heated evenly. Secondly, the partition plate 28 can separate the two types of plastic particles, optimizing the use effect of the drying box 5 itself. The driver 31 drives the washing rotating rod 14 through the motor and gear, so that the washing rotating rod 14 drives several sets of fixed side rods 30 to rotate. The fixed side rods 30 drive the plastic particles in the lifting box 12 and the drain box 7, so that the plastic particles rub against each other. With the help of the water in the lifting box 12 and the drain box 7, the washing operation of the plastic particles is completed.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A flotation separation device for processing plastic granules, characterized in that, The system includes a circulation tank (3) and a flotation tank (11). The flotation tank (11) is fixedly installed on the upper outer surface of the circulation tank (3). The inner side of the flotation tank (11) is provided with two sets of symmetrically arranged inclined bottom plates (8), and the inner side of the flotation tank (11) is provided with a groove between the two sets of inclined bottom plates (8). A material scooping component (9) is movably installed on the upper part of the flotation tank (11). A first pump (1) is fixedly installed on the outer surface of one end of the circulation tank (3). A second pump (20) is fixedly installed on one side of the first pump (1). A strip-shaped water drain (22) is provided on the upper part of both the first pump (1) and the second pump (20). The strip-shaped water drain (22) is fixedly installed on the upper part of one end of the flotation tank (11). A drain box (7) for use with the strip-shaped water drain (22) is provided on the other end of the flotation tank (11). A drying box (5) is fixedly installed on the outer surface of the other end of the circulation tank (3).

2. The flotation separation device for processing plastic granules according to claim 1, characterized in that, The material scooping component (9) includes a lifting material box (12) and two sets of sliding brackets (16). The lifting material box (12) is movably installed on the lower part of the sliding brackets (16). The upper ends of the material scooping component (9) and the flotation box (11) are slidably connected through the sliding brackets (16). The two sets of sliding brackets (16) are connected and fixed by a support rod (18).

3. The flotation separation device for processing plastic granules according to claim 2, characterized in that, A winding rod (17) is movably installed in the middle of two sets of sliding brackets (16). A first motor (19) for driving the winding rod (17) is provided on one side of one set of sliding brackets (16). The winding rod (17) and the lifting box (12) are connected and fixed by two cables (15). An arc-shaped mesh plate (13) is fixedly installed on the lower outer surface of the lifting box (12).

4. The flotation separation device for processing plastic granules according to claim 1, characterized in that, The first pump (1) and the second pump (20) are both fixedly installed with water inlet pipes (2) at one end, and the upper ends of the first pump (1) and the second pump (20) and the strip water drain (22) are connected and fixed by drain pipes (21).

5. The flotation separation device for processing plastic granules according to claim 1, characterized in that, A screen (26) is movably sleeved on the inner side of the lower end of the drain box (7). A first winding rod (23) is installed at one end of the screen (26), and a second winding rod (24) is installed at the other end of the screen (26). A second motor (25) is provided at the ends of the first winding rod (23) and the second winding rod (24).

6. The flotation separation device for processing plastic granules according to claim 2, characterized in that, The inner sides of the lifting material box (12) and the drain box (7) are movably installed with washing rods (14). Several sets of fixed side rods (30) are fixedly installed on the side of the washing rods (14). One end of the washing rods (14) is provided with a driver (31), and the driver (31) is provided with a power supply box (32).

7. The flotation separation device for processing plastic granules according to claim 1, characterized in that, A dryer (4) is fixedly installed on the outer surface of one end of the drying box (5), and a side-rotating cover plate (27) is movably installed on one side of the drying box (5). The surface of the side-rotating cover plate (27) is provided with several sets of air outlet holes.

8. The flotation separation device for processing plastic granules according to claim 1, characterized in that, A partition plate (28) is fixedly installed at the middle of the upper end of the drying box (5), and a breathable mesh plate (29) is fixedly installed at the lower end of the partition plate (28). An air inlet gap is provided between the breathable mesh plate (29) and the drying box (5).

9. The flotation separation device for processing plastic granules according to claim 1, characterized in that, A feed hopper (10) is fixedly installed on the upper part of one end of the flotation box (11), and a support slide (6) for use with the material scooping component (9) is fixedly installed on the outer surface of the other end of the flotation box (11).

Images