Micro-plastic aging accelerating device

Abstract

The utility model discloses a device for accelerating aging of micro-plastics, and relates to the technical field of micro-plastics. The device comprises an aging oven, a storage box is movably arranged in the aging oven, filter screen holes are formed in the outer side of the storage box, a box cover is in lap joint with the top of the storage box, first connecting blocks are fixedly connected to the inner side of the storage box in a bilateral symmetry mode, and second connecting blocks are slidably connected to the interiors of one sides of the connecting blocks; the bottom of the first connecting block is fixedly connected with the storage box, a sliding plate is arranged in the storage box in a sliding mode, a plurality of ultraviolet lamps are fixedly connected to the inner side of the aging oven at equal intervals, a plurality of vent holes are formed in the outer side of the aging oven in a bilateral symmetry mode, and a uniformizing mechanism is arranged on the outer side of the aging oven; and the problem of uneven irradiation caused by the fact that the micro-plastics are located at the same position for a long time is solved, a spraying mechanism is arranged on the outer side of the aging oven, and the aging condition of the real environment on the micro-plastics is simulated.

Description

Technical Field

[0001] The utility model relates to the technical field of microplastics, in particular to a device for accelerating the aging of microplastics. Background Art

[0002] As a vital material in human life, plastic has a very wide range of applications and has penetrated into various industries. Among them, microplastics, that is, plastic particles with a diameter of less than 5 mm, have attracted much attention due to their widespread distribution in aquatic environments, their biological effects on organisms, and their non-degradable properties.

[0003] The existing Chinese public patent (authorization announcement number: CN220932731U) mentions a device that simulates the aging of microplastics in the natural environment. It can independently control four different aging methods: ultraviolet chemical aging, seawater, precipitation and wind physical aging. At the same time, it can also combine different aging methods for joint aging, and can adjust different aging intensities and aging times according to the conditions required by the experiment, thereby simulating the specific process and mechanism of microplastic aging in the natural environment.

[0004] Currently, when aging microplastics, most of them are placed in an aging box and accelerated by ultraviolet lamps. However, since the position of the microplastics in the mesh aging bag is unchanged, some microplastics receive relatively weak radiation due to angle and other issues, which may lead to limited uniformity of ultraviolet radiation on the microplastics. This makes it difficult to accurately simulate the relatively balanced aging process of microplastics under different conditions in the natural environment, thereby affecting the accuracy and reliability of the research on the aging characteristics of microplastics. Utility Model Content

[0005] The purpose of the present invention is to solve the problem that some microplastics receive relatively weak radiation due to angle and other issues, which may lead to limited uniformity of ultraviolet radiation on the microplastics. The present invention provides a device for accelerating the aging of microplastics.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A device for accelerating the aging of microplastics, comprising an aging box, wherein a storage box is movably provided inside the aging box, a filter mesh is provided on the outside of the storage box, a box cover is overlapped on the top of the storage box, a connecting block 1 is fixedly connected to the inside of the storage box in left and right pairs, a connecting block 2 is slidably connected to the inside of one side of the connecting block, the connecting block 1 and the connecting block 2 are fixedly connected by bolts, the bottom of the connecting block 1 is fixedly connected to the storage box, a slide is slidably provided inside the storage box, a plurality of ultraviolet lamps are equidistantly fixedly connected to the inside of the aging box, a plurality of ventilation holes are symmetrically provided on the outside of the aging box, a guide plate is symmetrically fixedly connected to the inside of the aging box, the guide plate is arranged in an inclined shape, a uniform mechanism is provided on the outside of the aging box, and a spray mechanism is provided on the outside of the aging box.

[0008] By adopting the above technical solution, microplastics are placed in a storage box, and then connecting block one is placed inside connecting block two. Connecting block one and connecting block two are fixed by bolts, so that the storage box is fixed inside the aging box. At this time, the storage box is irradiated by starting the ultraviolet lamp. The box cover is made of translucent quartz glass, which has good light transmittance, ensuring good light conditions in the storage box. The uniform mechanism can make the ultraviolet lamp evenly irradiate the microplastics, and the spray mechanism can simulate the effect of precipitation on microplastics.

[0009] Furthermore, the uniformity mechanism includes a rotating motor fixedly connected to the outside of the aging box, the inside of the aging box is connected to a rotating rod in a left-right symmetrical rotation, the end of the rotating rod away from the inside of the aging box is fixedly connected to a striking block, and the striking block conflicts with the skateboard when rotating, and the output shaft of the rotating motor passes through the aging box and is fixedly connected to the rotating rod on one side.

[0010] By adopting the above technical solution, the rotating motor is started to drive the rotating rod to rotate, and the rotating rod rotates to drive the striking block to rotate. The striking block will hit the skateboard when rotating, causing the skateboard to move up and down inside the storage box, thereby driving the microplastics inside to move.

[0011] Furthermore, the bottom two sides of the storage box are fixedly connected with a base in a bilaterally symmetrical manner, the top of the base at the lower end is fixedly connected with a telescopic rod, the top of the telescopic rod is slidably connected to the skateboard, and the outer side of the telescopic rod is provided with a spring.

[0012] By adopting the above technical solution, the slide plate is reset, which facilitates the next striking of the striking block.

[0013] Furthermore, a belt roller 1 is sleeved on the outer side of the output shaft of the rotating motor, a transmission belt is sleeved on the outer side of the belt roller 1, a belt roller 2 is sleeved on the end of the transmission belt away from the belt roller 1, a connecting rod is sleeved on the inside of the belt roller 2, an end of the connecting rod close to the aging box passes through the aging box and is fixedly connected to the rotating rod on the other side, and the connecting rod is rotatably connected to the aging box.

[0014] By adopting the above technical solution, the vibration frequency of the skateboard is increased by staggered striking of the two striking blocks.

[0015] Furthermore, the spraying mechanism includes a water tank arranged on the inner bottom wall of the aging box, a water pump is arranged on the outside of the aging box, the water outlet end of the water pump is fixedly connected to a water outlet pipe, the water outlet pipe is connected to the water pump, and the inner bottom wall of the aging box is fixedly connected to an atomizing nozzle, and the end of the water outlet pipe away from the water pump is connected to the atomizing nozzle.

[0016] By adopting the above technical solutions and conducting multi-factor aging simulation, the research results are made more valuable for practical application.

[0017] Furthermore, a filter box is fixedly connected to the outside of the aging box, a side of the filter box close to the aging box is connected to the water tank, a side of the filter box away from the aging box is fixedly connected to the water pump, the water pump is connected to the filter box, the inner bottom wall of the filter box is symmetrically connected with a positioning block, a filter plate is slidingly provided inside the positioning block, the top of the filter plate passes through the filter box and is fixedly connected to a handle, and the filter plate is slidingly arranged with the filter box.

[0018] By adopting the above technical solution, the filter plate can filter impurities in water.

[0019] Furthermore, a vertical plate 1 is fixedly connected to the top of the filter box, a vertical plate 2 is fixedly connected to one side of the filter plate at the top of the filter box, a threaded rod 2 is threadedly connected to one side of the vertical plate 2, and a side of the threaded rod 2 close to the vertical plate 2 passes through the vertical plate 2 and is rotatably connected to a reinforcement plate.

[0020] By adopting the above technical solution, the stability of the filter plate during operation is improved.

[0021] Furthermore, a support rod is fixedly connected to a surface of the reinforcement plate close to the second vertical plate, an end of the support rod away from the second vertical plate passes through the second vertical plate, and the support rod is slidably connected to the second vertical plate.

[0022] By adopting the above technical solution, the reinforcement plate can remain stable when moving.

[0023] In summary, the present invention includes at least one of the following beneficial effects:

[0024] 1. When uniformly irradiating microplastics, the present invention first starts a rotating motor to move the microplastics inside the storage box, thereby reducing the uneven irradiation problem caused by microplastics staying in the same position for a long time, achieving a more uniform aging effect, and providing more reliable data for evaluating their environmental behavior and potential risks.

[0025] 2. When aging microplastics, the utility model starts the water pump to make the atomizing nozzle spray the microplastics, simulating the aging of microplastics during rainfall. The multi-factor aging simulation more realistically reflects the aging of microplastics in the actual environment, making the research results more valuable for practical application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the first three-dimensional structure of the aging box in the utility model;

[0027] Figure 2 This is a schematic diagram of the cross-sectional structure of the aging box in the utility model;

[0028] Figure 3 This is a schematic diagram of the second three-dimensional structure of the aging box in the utility model;

[0029] Figure 4 This is a schematic diagram of the explosion structure of the storage box in the present invention; it should be noted that the box cover and the striking block of the storage box are omitted in the figure;

[0030] Figure 5 It is a schematic diagram of the cross-sectional structure of the filter box in the utility model.

[0031] Description of reference numerals:

[0032] 1. Aging box; 2. Storage box; 3. Connecting block 1; 4. Connecting block 2; 5. Slide plate; 6. Vent; 7. UV lamp; 8. Rotating motor; 9. Rotating rod; 10. Striking block; 11. Base; 12. Telescopic rod; 13. Spring; 14. Drive belt; 15. Belt roller 2; 16. Connecting rod; 17. Water tank; 18. Water pump; 19. Water outlet pipe; 20. Atomizing nozzle; 21. Filter box; 22. Positioning block; 23. Filter plate; 24. Vertical plate 1; 25. Vertical plate 2; 26. Threaded rod; 27. Reinforcement plate; 28. Support rod. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-4 The utility model is described in further detail.

[0034] The embodiment of the utility model discloses a device for accelerating the aging of microplastics.

[0035] Reference Figure 1 and Figure 2, an accelerated microplastic aging device, including an aging box 1, the aging box 1 is movably provided with a storage box 2, the outside of the storage box 2 is provided with a filter mesh hole, the top of the storage box 2 is overlapped with a box cover, the inner side of the storage box 2 is fixedly connected with a connecting block 3 on the left and right sides, and a connecting block 2 4 is slidably connected to the inside of the connecting block 3. The connecting block 1 3 and the connecting block 2 4 are fixedly connected by bolts, and the bottom of the connecting block 3 is fixedly connected to the storage box 2. A slide plate 5 is slidingly provided inside the storage box 2, and a plurality of ultraviolet lamps 7 are equidistantly fixedly connected to the inside of the aging box 1. A plurality of ventilation holes 6 are symmetrically provided on the outside of the aging box 1. The inside of the aging box 1 is symmetrically fixed with a guide plate, which is arranged below the storage box 2 and arranged in an inclined shape. A uniform mechanism is provided on the outside of the aging box 1, and a spray mechanism is provided on the outside of the aging box 1.

[0036] When aging microplastics, first place the microplastics in the storage box 2, and then place the box cover on the top of the storage box 2 to reduce the risk of microplastics leaking from the storage box 2. The box cover is made of translucent quartz glass, which has good light transmittance, ensuring good light conditions in the storage box 2 for aging. Then place the connecting block 1 3 inside the connecting block 2 4, and fix the connecting block 1 3 and the connecting block 2 4 with bolts, so that the storage box 2 is fixed inside the aging box 1, ensuring the stability of the microplastics during the aging process. At this time, start the ultraviolet lamp 7 to irradiate the storage box 2, so as to accelerate the aging of the microplastics. The uniform mechanism can change the position of the microplastics in the storage box 2, so that the ultraviolet lamp 7 can evenly irradiate the microplastics. The microplastics can be sprayed by the spray mechanism, which can simulate the effect of precipitation on microplastics in the natural environment.

[0037] Reference Figures 2 to 4 The uniform mechanism includes a rotating motor 8 fixedly connected to the outside of the aging box 1. The inside of the aging box 1 is connected to a rotating rod 9 in a left-right symmetrical rotation. The end of the rotating rod 9 away from the inside of the aging box 1 is fixedly connected to a striking block 10. When the striking block 10 rotates, it conflicts with the skateboard 5. The output shaft of the rotating motor 8 passes through the aging box 1 and is fixedly connected to the rotating rod 9 on one side.

[0038] Among them, the two sides of the bottom of the storage box 2 are fixedly connected with a base 11 in a left-right symmetrical manner, and the top of the base 11 at the lower end is fixedly connected with a telescopic rod 12. The top of the telescopic rod 12 is slidably connected to the slide 5, and a spring 13 is provided on the outer side of the telescopic rod 12.

[0039] In addition, a belt roller 1 is sleeved on the outer side of the output shaft of the rotating motor 8, a transmission belt 14 is sleeved on the outer side of the belt roller 1, a belt roller 2 15 is sleeved on the end of the transmission belt 14 away from the belt roller 1, a connecting rod 16 is sleeved on the inside of the belt roller 2 15, and the end of the connecting rod 16 close to the aging box 1 passes through the aging box 1 and is fixedly connected to the rotating rod 9 on the other side, and the connecting rod 16 is rotationally connected to the aging box 1.

[0040] When irradiating the microplastics uniformly, the rotating motor 8 is first started to drive the rotating rod 9 to rotate. The rotating rod 9 rotates to drive the striking block 10 to rotate. The striking block 10 strikes the slide plate 5 during rotation, causing the slide plate 5 to move up and down inside the storage box 2, thereby driving the microplastics inside to move, reducing the uneven irradiation problem caused by the microplastics being in the same position for a long time, making the microplastic particles more evenly irradiated by ultraviolet rays, achieving a more uniform aging effect, and at the same time, the box cover can reduce the leakage of microplastics;

[0041] When the striking block 10 contacts the slide plate 5, the slide plate 5 moves upward, stretching the telescopic rod 12 and the spring 13, causing the spring 13 to generate elastic potential energy. When the striking block 10 moves away from the slide plate 5, the elastic potential energy of the spring 13 is reset, thereby restoring the slide plate 5, facilitating the next strike of the striking block 10.

[0042] When the rotating motor 8 is working, the rotating motor 8 will drive the belt roller 1 to rotate, the belt roller 1 will drive the transmission belt 14 to rotate, the transmission belt 14 will drive the belt roller 2 15 to rotate, and the rotation of the belt roller 2 15 will cause the connecting rod 16 to rotate, thereby driving the striking block 10 on the other side to strike the skateboard 5, thereby increasing the shaking frequency of the skateboard 5.

[0043] Reference Figures 2 to 4 The spraying mechanism includes a water tank 17 arranged on the inner bottom wall of the aging box 1, a water pump 18 is arranged on the outside of the aging box 1, the water outlet end of the water pump 18 is fixedly connected to a water outlet pipe 19, and the water outlet pipe 19 is connected to the water pump 18. The inner bottom wall of the aging box 1 is fixedly connected to an atomizing nozzle 20, and the end of the water outlet pipe 19 away from the water pump 18 is connected to the atomizing nozzle 20.

[0044] Among them, the outside of the aging box 1 is fixedly connected to the filter box 21, the side of the filter box 21 close to the aging box 1 is connected to the water tank 17, the side of the filter box 21 away from the aging box 1 is fixedly connected to the water pump 18, the water pump 18 is connected to the filter box 21, and the inner bottom wall of the filter box 21 is fixedly connected with a positioning block 22 in a left-right symmetrical manner. A filter plate 23 is slidingly provided inside the positioning block 22. The top of the filter plate 23 passes through the filter box 21 and is fixedly connected to a handle. The filter plate 23 is slidingly arranged with the filter box 21.

[0045] In addition, a vertical plate 1 24 is fixedly connected to the top of the filter box 21, and a vertical plate 25 is fixedly connected to one side of the filter plate 23 at the top of the filter box 21. A threaded rod 26 2 is threadedly connected to one side of the vertical plate 25, and a side of the threaded rod 26 2 close to the vertical plate 25 passes through the vertical plate 25 and is rotatably connected to a reinforcement plate 27.

[0046] In addition, a support rod 28 is fixedly connected to a surface of the reinforcing plate 27 close to the second vertical plate 25 , and an end of the support rod 28 away from the second vertical plate 25 passes through the second vertical plate 25 , and the support rod 28 is slidably connected to the second vertical plate 25 .

[0047] When aging microplastics, first remove the box cover, then start the water pump 18 to pump out the water in the water tank 17, and then the pumped water enters the water inlet pipe, and is connected to the atomizing nozzle 20 through the water inlet pipe, so that the atomizing nozzle 20 sprays the microplastics, simulating the aging of microplastics during rainfall. The multi-factor aging simulation more realistically reflects the aging of microplastics in the actual environment, making the research results more practical. After the spraying is completed, the water will flow downward into the top of the guide plate under the action of gravity, and the guide plate is set to an inclined shape to guide the water into the water tank 17, achieving recycling and reducing the waste of water resources. The next time it is used, you only need to continue to start the water pump to pump out the water, which is convenient for the next use.

[0048] When microplastics need to be sprayed, water first enters the filter box 21. The filter plate 23 in the filter box 21 can filter impurities in the water, reducing the risk of impurities clogging the water outlet pipe 19, the atomizing nozzle 20, or damaging the water pump 18 and other equipment, thereby reducing equipment maintenance costs. After long-term use, personnel can also pull out the filter plate 23 for cleaning;

[0049] When the filter plate 23 needs to be fixed, the threaded rod 26 is first rotated to move the threaded rod 26 in the second vertical plate 25. The movement of the threaded rod 26 drives the reinforcement plate 27 to clamp and fix the filter plate 23, so that the filter plate 23 is firmly fixed between the first vertical plate 24 and the second vertical plate 25, thereby reducing displacement caused by water flow impact or equipment vibration, and ensuring the stability and reliability of the filter plate 23 during the working process.

[0050] When the reinforcement plate 27 moves, the support rods 28 provide the reinforcement plate 27 with additional support points, so that the reinforcement plate 27 can remain stable during the movement.

[0051] Working principle: Place the microplastics in the storage box 2, then place the connecting block 1 3 inside the connecting block 2 4, and fix the connecting block 1 3 and the connecting block 2 4 with bolts, so that the storage box 2 is fixed inside the aging box 1, ensuring the stability of the microplastics during the aging process. At this time, start the ultraviolet lamp 7 to irradiate the storage box 2, thereby accelerating the aging of the microplastics, start the rotating motor 8 to drive the rotating rod 9 to rotate, and the rotating rod 9 rotates to drive the striking block 10 to rotate. The striking block 10 will hit the slide plate 5 when it rotates, causing the slide plate 5 to move up and down inside the storage box 2, thereby driving the microplastics inside to move;

[0052] By starting the water pump 18 to pump out the water in the water tank 17, the pumped water then enters the water inlet pipe and is connected to the atomizing nozzle 20 through the water inlet pipe, so that the atomizing nozzle 20 sprays the microplastics (the lid of the storage box 2 can be removed before spraying). The multi-factor aging simulation more realistically reflects the aging of microplastics in the actual environment. The filter plate 23 in the filter box 21 can filter impurities in the water, reducing the risk of impurities clogging the water outlet pipe 19, the atomizing nozzle 20, or damaging the water pump 18 and other equipment.

[0053] In addition, it should be noted that a method for air-drying the microplastics after spraying is provided herein: after the microplastics are sprayed, the rotating motor 8 can be started to drive the striking block 10 to strike the slide plate 5, vibrating the microplastics in the storage box 2 so that excess water on the microplastics is drained out. The excess water flows along the guide plate to the water tank 17 or directly falls into the water tank 17 through the filter mesh of the storage box 2, which can accelerate the air-drying speed of the microplastics. After the excess water is drained out, the microplastics can be naturally air-dried, or an additional fan can be added to the aging box 1 to blow the microplastics dry, thereby further increasing the air-drying speed of the microplastics.

[0054] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for accelerating microplastic aging, comprising an aging chamber (1), characterized in that: The aging box (1) is provided with a storage box (2) in a movable manner. The outer side of the storage box (2) is provided with a filter mesh. The top of the storage box (2) is overlapped with a box cover. The inner side of the storage box (2) is fixedly connected with a connecting block (3) on the left and right sides. The inner side of the connecting block (3) is slidably connected with a connecting block (4). The connecting block (3) and the connecting block (4) are fixedly connected by bolts. The bottom of the connecting block (3) is fixedly connected to the storage box (2). The inner side of the storage box (2) is slidably provided with a slide plate (5). The inner side of the aging box (1) is fixedly connected with a plurality of ultraviolet lamps (7) at equal intervals. The outer side of the aging box (1) is symmetrically provided with a plurality of ventilation holes (6). The inner side of the aging box (1) is symmetrically fixedly connected with a guide plate. The guide plate is arranged in an inclined shape. The outer side of the aging box (1) is provided with a uniform mechanism. The outer side of the aging box (1) is provided with a spray mechanism.

2. The device for accelerating microplastic aging according to claim 1, characterized in that: The uniform mechanism comprises a rotating motor (8) fixedly connected to the outside of the aging box (1); a rotating rod (9) is connected to the inside of the aging box (1) in a symmetrical rotation manner; an end of the rotating rod (9) away from the inside of the aging box (1) is fixedly connected to a striking block (10); the striking block (10) contacts the slide plate (5) when rotating; and an output shaft of the rotating motor (8) passes through the aging box (1) and is fixedly connected to the rotating rod (9) on one side.

3. The device for accelerating microplastic aging according to claim 2, characterized in that: The bottom sides of the storage box (2) are fixedly connected to a base (11) in a bilaterally symmetrical manner. The top of the base (11) at the lower end is fixedly connected to a telescopic rod (12). The top of the telescopic rod (12) is slidably connected to the slide (5). The outer side of the telescopic rod (12) is provided with a spring (13).

4. The device for accelerating microplastic aging according to claim 2, characterized in that: A belt roller 1 is sleeved on the outer side of the output shaft of the rotating motor (8), a transmission belt (14) is sleeved on the outer side of the belt roller 1, a belt roller 2 (15) is sleeved on the end of the transmission belt (14) away from the belt roller 1, a connecting rod (16) is sleeved on the inside of the belt roller 2 (15), an end of the connecting rod (16) close to the aging box (1) passes through the aging box (1) and is fixedly connected to the rotating rod (9) on the other side, and the connecting rod (16) is rotationally connected to the aging box (1).

5. The device for accelerating microplastic aging according to claim 1, characterized in that: The spray mechanism comprises a water tank (17) arranged on the inner bottom wall of the aging box (1); a water pump (18) is arranged on the outer side of the aging box (1); a water outlet end of the water pump (18) is fixedly connected to a water outlet pipe (19); the water outlet pipe (19) is communicated with the water pump (18); an atomizing nozzle (20) is fixedly connected to the inner bottom wall of the aging box (1); and an end of the water outlet pipe (19) away from the water pump (18) is communicated with the atomizing nozzle (20).

6. The device for accelerating microplastic aging according to claim 5, characterized in that: The outside of the aging box (1) is fixedly connected to a filter box (21), a side of the filter box (21) close to the aging box (1) is connected to the water tank (17), a side of the filter box (21) away from the aging box (1) is fixedly connected to a water pump (18), the water pump (18) is connected to the filter box (21), the inner bottom wall of the filter box (21) is fixedly connected to a positioning block (22) in a bilaterally symmetrical manner, a filter plate (23) is slidably provided inside the positioning block (22), the top of the filter plate (23) passes through the filter box (21) and is fixedly connected to a handle, and the filter plate (23) is slidably provided with the filter box (21).

7. The device for accelerating microplastic aging according to claim 6, characterized in that: A vertical plate 1 (24) is fixedly connected to the top of the filter box (21), and a vertical plate 2 (25) is fixedly connected to one side of the filter plate (23) at the top of the filter box (21). A threaded rod (26) 2 is threadedly connected to one side of the vertical plate 2 (25). A side of the threaded rod (26) 2 close to the vertical plate 2 (25) passes through the vertical plate 2 (25) and is rotatably connected to a reinforcing plate (27).

8. The device for accelerating microplastic aging according to claim 7, characterized in that: The reinforcing plate (27) is fixedly connected to a support rod (28) on one side close to the second vertical plate (25), and the end of the support rod (28) away from the second vertical plate (25) passes through the second vertical plate (25), and the support rod (28) is slidably connected to the second vertical plate (25).

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