Rinsing tank for PET (Polyethylene Terephthalate) bottle chips

Abstract

The invention provides a rinsing tank for PET bottle flakes, which comprises a tank body with a plurality of supporting legs fixed at the bottom, a feeding device is arranged above the tank body, one end of the tank body is communicated with a temporary storage box, moving seats are arranged on two sides of the tank body in a sliding manner, a sliding seat is arranged between the two moving seats, and the bottom of the tank body is provided with a feeding device. The two sides of the sliding seat extend into the moving seats respectively and are in sliding connection with the moving seats, a stop block is fixed to the sliding seat and makes contact with the moving seats, an arc-shaped filter screen plate is fixed to the bottom of the sliding seat and makes contact with the inner wall of the groove body, a material pushing filter screen plate is arranged in the temporary storage box, and the material pushing filter screen plate is arranged in the temporary storage box and makes contact with the inner wall of the groove body. Two sliding columns are symmetrically fixed to the temporary storage box, and the problems that when an existing rinsing tank is used, bottle chips are inevitably accumulated at the bottom of the rinsing tank, workers need to stop the rinsing tank on the whole line to clean the interior of the rinsing tank, and time is wasted are solved.

Description

Technical Field

[0001] The invention relates to the field of plastic cleaning, in particular to a rinsing tank for PET bottle flakes. Background Art

[0002] Polyethylene terephthalate (PET) is a condensation product of terephthalic acid and oxalic acid, commonly known as polyester or PET. In recent years, PET has been widely used to make packaging bottles. However, the environmental pollution caused by discarded disposable PET packaging bottles is becoming increasingly serious. Recycling used PET bottles can not only reduce environmental pollution but also save resources.

[0003] At present, plastic bottles are usually used to prepare PET bottle flakes after recycling. During the preparation process, PET bottle flakes are usually rinsed in a rinsing tank. The existing rinsing tank usually transports the PET bottle flakes into the rinsing tank and rinses them through natural sedimentation and water impact.

[0004] However, when using the existing rinsing tank, bottle flakes will inevitably accumulate at the bottom of the rinsing tank due to several reasons (such as insufficient water flow velocity, uneven flow field distribution, and too low turbulence intensity), affecting the smooth flow of bottle flakes to the material collection point. If a large amount of accumulation occurs, the staff will need to shut down the entire line to clean the inside of the rinsing tank, which is very time-consuming.

[0005] Therefore, it is necessary to provide a new rinsing tank for PET bottle flakes to solve the above technical problems. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides a rinsing tank for PET bottle flakes, which solves the problem that bottle flakes inevitably accumulate at the bottom of the existing rinsing tank when in use, requiring staff to shut down the entire line to clean the inside of the rinsing tank, which is very time-consuming.

[0007] The rinsing tank for PET bottle flakes provided by the present invention comprises a tank body with a plurality of supporting legs fixed at the bottom, a feeding device provided above the tank body, a temporary storage box connected to one end of the tank body, movable seats slidably provided on both sides of the tank body, a slide seat provided between the two movable seats, both sides of the slide seat respectively extending into the movable seats and slidably connected thereto, a stopper fixed on the slide seat, and the stopper contacts the movable seat; An arc-shaped filter plate is fixed to the bottom of the slide seat, and the arc-shaped filter plate is in contact with the inner wall of the tank body; A push filter plate is provided inside the temporary storage box, and two sliding columns are symmetrically fixed on the temporary storage box. A lifting seat is slidably provided on the two sliding columns, and a plurality of connecting rods are fixed at the bottom of the lifting seat. The bottom of the connecting rod is fixed to the push filter plate.

[0008] In a preferred embodiment, a pair of first limiting seats are fixed on both sides of the trough body, and a first screw rod is movably arranged between each pair of the first limiting seats. The first screw rod passes through the movable seat and is threadedly connected thereto.

[0009] In a preferred embodiment, two second limit seats are symmetrically fixed on one side of the trough body, a rotating shaft is movably provided between the two second limit seats, and two first bevel gears are installed on the rotating shaft at intervals; A second bevel gear is mounted on each of the two first screw rods, and the two second bevel gears are respectively meshed with the two first bevel gears; A first motor is provided on one side of the tank body to drive the rotating shaft to rotate.

[0010] In a preferred embodiment, a third limiting seat is fixed to one side of the temporary storage box, and a second screw rod is movably provided on the third limiting seat; A connecting seat is fixed on one of the lifting seats, the second screw rod passes through the connecting seat and is threadedly connected to the connecting seat, and a second motor is provided at the bottom of the second screw rod to drive the second screw rod to rotate.

[0011] In a preferred embodiment, the first screw rod and the second screw rod are both galvanized.

[0012] In a preferred embodiment, a handle is fixed on the top of the slide.

[0013] In a preferred embodiment, two side baffles are symmetrically fixed on the slide, and the side baffles are located on both sides of the push filter plate to ensure that the bottle pieces do not fall on the ground during unloading; An inclined material guide plate is fixed on one side of the temporary storage box through a bracket.

[0014] In a preferred embodiment, the tank body is connected to a plurality of water inlet pipes, one end of the plurality of water inlet pipes located inside the tank body is provided with a water inlet nozzle, and the other end of the plurality of water inlet pipes is connected to a main pipeline, and the main pipeline is provided with a water inlet; The temporary storage box is provided with a water outlet pipe.

[0015] In a preferred embodiment, a scraping rubber is fixed to the portion where the arc-shaped filter plate contacts the trough body.

[0016] Beneficial effects of the present invention: 1. When this rinsing tank is in use, water enters from the water inlet pipe and is discharged from the water outlet pipe. When the bottle flakes fall into the tank from the feed device, they are pushed horizontally toward the other end of the tank by the directional water flow while settling. At the same time, the bottle flakes roll and rub in the water, stripping away contaminants. The light impurities (plastic labels, etc.) that are stripped off float to the surface or are captured by bubbles to form scum. The clean PET bottle flakes eventually sink to the bottom of the tank. The bottle flakes after cleaning will fall to the bottom of the tank. When the cleaned PET bottle flakes need to be collected, the staff can first pick out the scum, pull the handle to pull out the curved filter plate from between the two movable seats, start the first motor so that the two movable seats are driven to slide along the tank body to a position away from the temporary storage box, and finally reset the curved filter plate. At this time, starting the second motor again can drive the push filter plate to push all the PET bottle flakes in the tank body into the temporary storage box. Compared with the traditional rinsing tank, the structure of this device is very simple and the cost is low. It can clean the bottle flakes while avoiding the problem of bottle flakes clogging. 2. Since the curved filter plate is in contact with the push filter plate during normal use (not during cleaning), it can effectively prevent the scum inside the tank from entering the temporary storage box and affecting the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional view of the main structure of the rinsing tank for PET bottle flakes provided by the present invention; Figure 2 The structure of the temporary storage box provided by the present invention is as follows: Figure 1 ; Figure 3 A structural view of the main pipeline provided by the present invention; Figure 4 The structure of the temporary storage box provided by the present invention is as follows: Figure 2 ; Figure 5 for Figure 4 A schematic diagram of the enlarged structure of shown; Figure 6 A side view of the main structure of the rinsing tank for PET bottle flakes provided by the present invention.

[0018] Numbers in the figure: 1. trough body; 2. supporting legs; 3. temporary storage box; 4. moving seat; 5. sliding seat; 6. stopper; 7. curved filter plate; 8. push filter plate; 9. sliding column; 10. lifting seat; 11. connecting rod; 12. first limit seat; 13. first screw rod; 14. second limit seat; 15. rotating shaft; 16. first bevel gear; 17. second bevel gear; 18. third limit seat; 19. second screw rod; 20. connecting seat; 21. first motor; 22. second motor; 23. handle; 24. side baffle; 25. bracket; 26. inclined guide plate; 27. water inlet pipe; 28. main pipeline; 29. ​​water inlet; 30. water outlet pipe; 31. feeding device. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 as well as Figure 6 ,in Figure 1 A three-dimensional view of the main structure of the rinsing tank for PET bottle flakes provided by the present invention; Figure 2 The structure of the temporary storage box provided by the present invention is as follows: Figure 1 ; Figure 3 A structural view of the main pipeline provided by the present invention; Figure 4 The structure of the temporary storage box provided by the present invention is as follows: Figure 2 ; Figure 5 for Figure 4 A schematic diagram of the enlarged structure of shown; Figure 6 A side view of the main structure of the rinsing tank for PET bottle flakes provided by the present invention.

[0021] In the specific implementation process, Figures 1-6 As shown, it includes a trough body 1 with several supporting legs 2 fixed at the bottom, and a feeding device 31 is provided above the trough body 1. The feeding device 31 is specifically the discharge port of a screw conveyor. In the technology of this field, the crushed bottle pieces are often fed from the crusher to the inside of the rinsing tank through a screw conveyor.

[0022] The tank body 1 is connected with a plurality of water inlet pipes 27. One end of the plurality of water inlet pipes 27 located inside the tank body 1 is provided with a water inlet nozzle. The other end of the plurality of water inlet pipes 27 is connected with a main pipe 28. The main pipe 28 is provided with a water inlet 29. The temporary storage box 3 is provided with a water outlet pipe 30. The water inlet pipe 27 and the water outlet pipe 30 are symmetrically arranged to ensure that the direction of water flow is consistent with the desired direction of movement of the bottle flakes and is downstream, directly pushing the bottle flakes forward. When the bottle flakes fall into the tank body 1 from the feeding device 31, under the action of the directional water flow, the bottle flakes settle while being pushed by the water flow to move horizontally toward the other end of the tank body 1 (the water outlet end 30). At the same time, the bottle flakes roll and rub in the water, and the pollutants are peeled off. At this time, the light impurities (plastic labels, etc.) peeled off float up or are captured by bubbles to form scum, and the clean PET bottle flakes eventually sink to the bottom of the tank.

[0023] When the filter bag 1 is in use, the filter bag 1 is in a state of being easily broken and difficult to move, and the filter bag 1 is kept in a state of being easily broken and difficult to move.

[0024] A push filter plate 8 is provided inside the temporary storage box 3. Two sliding columns 9 are symmetrically fixed on the temporary storage box 3. A lifting seat 10 is slidably provided on the two sliding columns 9. Several connecting rods 11 are fixed at the bottom of the lifting seat 10. The bottom of the connecting rod 11 is fixed on the push filter plate 8.

[0025] A pair of first limit seats 12 are fixed on both sides of the trough body 1, and a first screw rod 13 is movably arranged between each pair of first limit seats 12. The first screw rod 13 passes through the movable seat 4 and is threadedly connected thereto. Two second limit seats 14 are symmetrically fixed on one side of the trough body 1, and a rotating shaft 15 is movably arranged between the two second limit seats 14. Two first bevel gears 16 are installed on the rotating shaft 15 at intervals, and second bevel gears 17 are installed on the two first screw rods 13. The two second bevel gears 17 are respectively engaged with the two first bevel gears 16. A first motor 21 for driving the rotating shaft 15 to rotate is provided on one side of the trough body 1. When the first motor 21 is started, the rotating shaft 15 is driven to rotate. Under the transmission action of the two first bevel gears 16 and the two second bevel gears 17, the two first screw rods 13 will be driven to rotate in the same direction at the same time. At this time, the two movable seats 4 will be driven to slide stably along the trough body 1.

[0026] A third limit seat 18 is fixed to one side of the temporary storage box 3, and a second screw rod 19 is movably provided on the third limit seat 18. A connecting seat 20 is fixed to one of the lifting seats 10, and the second screw rod 19 passes through the connecting seat 20 and is threadedly connected thereto. A second motor 22 is provided at the bottom of the second screw rod 19 to drive it to rotate. When the second motor 22 is started, the second screw rod 19 is driven to rotate. Under the action of the second screw rod 19, the lifting seat 10 will be driven to slide upward along the sliding column 9. At this time, the push filter plate 8 will also be driven to move upward and bring out the PET bottle flakes. At the same time, water will fall from the holes on the push filter plate 8 into the interior of the temporary storage box 3. The first screw rod 13 and the second screw rod 19 are both galvanized to improve their waterproof effect and enhance their service life.

[0027] Two side baffles 24 are symmetrically fixed on the slide 5. The side baffles 24 are located on both sides of the push filter plate 8 to ensure that the bottle pieces will not fall to the ground when unloading. An inclined guide plate 26 is fixed to one side of the temporary storage box 3 through a bracket 25.

[0028] Working principle of the present invention: When the rinse tank is in use, water enters from the water inlet pipe 27 and is discharged from the water outlet pipe 30. After the bottle flakes fall into the tank body 1 from the feed device 31, they are pushed by the directional water flow to move horizontally toward the other end of the tank body 1 (the water outlet 30) while settling. At the same time, the bottle flakes roll and rub in the water, stripping away contaminants. At this time, the light impurities (plastic labels, etc.) that are stripped off float up or are captured by bubbles to form scum, while the clean PET bottle flakes eventually sink to the bottom of the tank. When it is necessary to collect the cleaned PET bottle flakes, the staff can first remove the scum, then pull the handle 23 to withdraw the curved filter plate 7 from between the two movable seats 4, start the first motor 21 to drive the rotating shaft 15 to rotate, and under the transmission action of the two first bevel gears 16 and the two second bevel gears 17, the two first screw rods 13 will be driven to rotate in the same direction at the same time. At this time, both movable seats 4 will be driven to slide along the trough body 1, and finally the curved filter plate 7 will be reset. At this time, the second motor 22 will be started again to drive the pushing filter plate 8 to push all the PET bottle flakes in the trough body 1 into the temporary storage box 3; Finally, the second motor 22 is started to drive the second screw rod 19 to rotate. Under the action of the second screw rod 19, the lifting seat 10 will be driven to slide upward along the sliding column 9. At this time, the pushing filter plate 8 will also be driven to move upward and bring out the PET bottle flakes. At the same time, water will fall from the holes on the pushing filter plate 8 into the temporary storage box 3. Finally, the staff will directly sweep the PET bottle flakes from the pushing filter plate 8 into the inclined guide plate 26 to complete the unloading.

[0029] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0030] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A rinsing tank for PET bottle flakes, comprising a tank body (1) with a plurality of support legs (2) fixed at the bottom, a feeding device (31) being arranged above the tank body (1), characterized in that: One end of the trough body (1) is connected to a temporary storage box (3), and movable seats (4) are slidably provided on both sides of the trough body (1). A slide seat (5) is provided between the two movable seats (4). Both sides of the slide seat (5) extend into the movable seat (4) and are slidably connected thereto. A stopper (6) is fixed on the slide seat (5), and the stopper (6) is in contact with the movable seat (4). An arc-shaped filter plate (7) is fixed to the bottom of the slide seat (5), and the arc-shaped filter plate (7) is in contact with the inner wall of the tank body (1); A push filter plate (8) is provided inside the temporary storage box (3), two sliding columns (9) are symmetrically fixed on the temporary storage box (3), and a lifting seat (10) is slidably provided on the two sliding columns (9). A plurality of connecting rods (11) are fixed at the bottom of the lifting seat (10), and the bottom of the connecting rods (11) is fixed on the push filter plate (8).

2. The rinsing tank for PET bottle flakes according to claim 1, characterized in that: A pair of first limiting seats (12) are fixed on both sides of the trough body (1), and a first screw rod (13) is movably arranged between each pair of the first limiting seats (12). The first screw rod (13) passes through the movable seat (4) and is threadedly connected thereto.

3. The rinsing tank for PET bottle flakes according to claim 2, characterized in that: Two second limiting seats (14) are symmetrically fixed on one side of the trough body (1), a rotating shaft (15) is movably arranged between the two second limiting seats (14), and two first bevel gears (16) are installed on the rotating shaft (15) at intervals; A second bevel gear (17) is mounted on each of the two first screw rods (13), and the two second bevel gears (17) are respectively meshed with the two first bevel gears (16); A first motor (21) for driving the rotating shaft (15) to rotate is provided on one side of the tank body (1).

4. The rinsing tank for PET bottle flakes according to claim 3, characterized in that: A third limiting seat (18) is fixed on one side of the temporary storage box (3), and a second screw rod (19) is movably provided on the third limiting seat (18); A connecting seat (20) is fixed on one of the lifting seats (10), the second screw rod (19) passes through the connecting seat (20) and is threadedly connected thereto, and a second motor (22) is provided at the bottom of the second screw rod (19) for driving the second screw rod (19) to rotate.

5. The rinsing tank for PET bottle flakes according to claim 4, characterized in that: The first screw rod (13) and the second screw rod (19) are both galvanized.

6. The rinsing tank for PET bottle flakes according to claim 5, characterized in that: A handle (23) is fixed to the top of the slide (5).

7. The rinsing tank for PET bottle flakes according to claim 6, characterized in that: Two side baffles (24) are symmetrically fixed on the slide (5), and the side baffles (24) are located on both sides of the push filter plate (8) to ensure that the bottle pieces do not fall on the ground when unloading; An inclined material guide plate (26) is fixed to one side of the temporary storage box (3) via a bracket (25).

8. The rinsing tank for PET bottle flakes according to claim 7, characterized in that: The tank body (1) is connected to a plurality of water inlet pipes (27), one end of each of the water inlet pipes (27) located inside the tank body (1) is provided with a water inlet nozzle, and the other end of each of the water inlet pipes (27) is connected to a main pipe (28), and a water inlet (29) is provided on the main pipe (28); The temporary storage box (3) is provided with a water outlet pipe (30).

9. The rinsing tank for PET bottle flakes according to claim 8, characterized in that: A scraping rubber is fixed to the portion where the arc-shaped filter plate (7) contacts the trough body (1).

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