Crushing and cleaning device for recycling medical waste plastic

Abstract

The invention relates to the technical field of plastic recycling, and discloses a medical waste plastic recycling crushing and cleaning device which comprises a cleaning pool and a soaking and filtering pool, a crushing tank is fixedly installed in the cleaning pool, an inner cavity of the crushing tank is a big-end-up conical cavity, and a crushing assembly is arranged in the conical cavity; a feeding hopper communicated with the conical cavity is arranged at the upper end of the crushing tank, and a discharging opening communicated with the conical cavity is formed in the side face of the crushing tank. According to the device, materials in the crushing tank are crushed in the atmosphere of cleaning liquid, small materials enter the soaking and filtering tank along with the cleaning liquid to be disinfected, soaked, filtered and discharged, and the cleaning liquid and residual materials flow back to the cleaning tank and then are lifted by the crushing tank and conveyed into the soaking and filtering tank in a circulating mode; materials in the soaking filter tank serve as filter materials, residual materials in the liquid are intercepted by the filter materials, and the process is circulated, so that the residual materials in the cleaning liquid are gradually reduced, and meanwhile, the problem that the materials are inconvenient to convey is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic recycling, and particularly to a crushing and cleaning device for medical waste plastics recycling. Background Art

[0002] With the continuous development of the medical and health undertakings, the amount of disposable medical plastic waste is increasing. By recycling and reusing medical waste plastics, environmental pollution can be avoided, waste can be reused, turning waste into treasure and harm into benefit, saving resources for the country, and achieving good social and economic benefits.

[0003] In the prior art, a patent document with the publication number of CN105014823B discloses a plastic film crushing and cleaning recycling system, including a feeding device and a material washing device; the plastic film crushing and cleaning recycling system further includes a crushing device located between the feeding device and the material washing device, a rinsing and decontamination device and a discharging device successively located behind the material washing device, a material washing conveyor located between the crushing device and the material washing device, and a rinsing conveyor located between the material washing device and the rinsing and decontamination device. This plastic film crushing and cleaning recycling system has the advantages that the suction pipeline will not be blocked when the size of the plastic film is large and the cleaning effect is good.

[0004] For common crushing and cleaning devices for plastic recycling, their crushing process and cleaning process are independently set. The crushed materials are transported to the cleaning mechanism through a conveyor, and after cleaning, the materials still need to be fished out. In particular, the fine fragments in the cleaning liquid are very difficult to fish out and often are discharged with the sediment sludge, resulting in waste of resources. Based on this, the existing plastic recycling devices with independently set crushing and cleaning have the problem of inconvenient material transportation. Conveyors are required to transport materials between each process, resulting in a relatively large size of the entire recycling system and low recycling efficiency, which urgently needs to be solved. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem of inconvenient material transportation existing in the existing plastic recycling devices with independently set crushing and cleaning in the prior art, and to propose a crushing and cleaning device for medical waste plastics recycling.

[0006] To achieve the above purpose, the present invention adopts the following technical scheme: A crushing and cleaning device for medical waste plastics recycling includes a cleaning pool and a soaking and filtering pool. A crushing tank is fixedly installed inside the cleaning pool. The inner cavity of the crushing tank is a conical cavity that is larger at the top and smaller at the bottom. A crushing assembly is arranged in the conical cavity. A feeding hopper communicating with the conical cavity is arranged at the upper end of the crushing tank. A discharge port communicating with the conical cavity is arranged on the side of the crushing tank, and a filter plate is installed in the discharge port.

[0007] A filter cartridge is fixedly installed in the soaking and filtering tank. A spiral blade is rotatably installed in the filter cartridge. A reduction motor is fixedly installed at the end of the soaking and filtering tank. The reduction motor drives the spiral blade to rotate. A reflux adjustment assembly is arranged between the cleaning tank and the soaking and filtering tank.

[0008] The discharge port of the crushing tank is communicated with the soaking and filtering tank. The inner cavity of the cleaning tank is communicated with the bottom end of the conical cavity of the crushing tank. Cleaning liquid is injected into both the cleaning tank and the soaking and filtering tank. The liquid level difference between the cleaning tank and the soaking and filtering tank is controlled by the reflux adjustment assembly. The cleaning liquid participates in multiple processes of crushing, stirring and cleaning, soaking and material conveying, solving the problems of inconvenient material recovery and conveying.

[0009] Preferably, the upper side of the inner cavity of the soaking and filtering tank is a feeding trough and a soaking trough. The feeding trough and the soaking trough are separated by a vertical partition board. The lower side of the inner cavity of the soaking and filtering tank is a liquid collecting trough. The feeding trough and the liquid collecting trough are separated by a horizontal partition board. The soaking trough is communicated with the liquid collecting trough. The filter cartridge is arranged in the feeding trough and the soaking trough, and the filter cartridge is fixedly connected with the vertical partition board. The discharge port of the crushing tank is communicated with the feeding trough. A discharge pipe is fixedly installed at one end of the filter cartridge away from the feeding trough. When the cleaning liquid in the liquid collecting trough is drained, the liquid level in the soaking trough drops, facilitating water filtering and discharging of the materials in the filter cartridge.

[0010] Preferably, the reflux adjustment assembly includes a first drainage cover and a second drainage cover which are communicated with each other through a pipeline. The first drainage cover is fixedly installed at the end of the soaking and filtering tank, and the first drainage cover is communicated with the liquid collecting trough. An impeller is rotatably installed in the first drainage cover. The reduction motor drives the spiral blade and the impeller to rotate through chain wheel and chain transmission. The second drainage cover is fixedly installed at the end of the cleaning tank. The rotating impeller provides power for the circulating flow of the cleaning liquid.

[0011] Preferably, a guide pipe is rotatably installed in the second drainage cover. A rotary oil cylinder for driving the guide pipe to rotate is fixedly installed at the end of the second drainage cover. A water inlet is arranged on the outer cylindrical surface of the guide pipe. The water inlet is in sliding contact with the inner wall of the second drainage cover. When the guide pipe rotates to a first angle, the water inlet is in an open state. The second drainage cover is communicated with the inner cavity of the cleaning tank through the guide pipe. The cleaning tank has the function of temporarily storing the cleaning liquid to facilitate adjusting the liquid level difference between the cleaning tank and the soaking and filtering tank.

[0012] Preferably, a sluice gate is fixedly installed at the end of the guide pipe. When the guide pipe rotates to the first angle, the sluice gate rotates to cover the passage opening where the inner cavity of the cleaning tank is communicated with the bottom end of the conical cavity of the crushing tank. The rotary oil cylinder continues to drive the guide pipe to rotate. When the guide pipe rotates to a second angle, the sluice gate is in a state of opening the passage opening where the inner cavity of the cleaning tank is communicated with the bottom end of the conical cavity of the crushing tank. A liquid level sensor is fixedly installed on the surface of the soaking and filtering tank. The start and stop of the rotary oil cylinder are controlled through the liquid level sensor, and the liquid level in the soaking and filtering tank can be controlled through the liquid level sensor.

[0013] A spray pipe communicating with the discharge port of the crushing tank is arranged inside the second drainage cover. A U-shaped channel is formed in the inner wall of the discharge port of the crushing tank. The outlet end of the U-shaped channel communicates with the conical cavity, so that the cleaning liquid in the soaking and filtering tank can flow back into the crushing tank for recycling.

[0014] Preferably, the crushing assembly includes a driving motor and a rotating shaft. The driving motor is fixedly installed on the top of the crushing tank. The rotating shaft is fixedly connected to the rotating end of the driving motor and extends into the conical cavity. A plurality of stirring rods and a plurality of baffles are fixedly installed on the surface of the rotating shaft. The plurality of baffles divide the space around the rotating shaft into a plurality of unit areas.

[0015] Among them, the crushing assembly further includes a fixed blade and a movable blade. The fixed blade is embedded in the inner wall of the conical cavity. The movable blade is fixedly installed on the side of the baffle away from the rotating shaft. When the driving motor drives the rotating shaft to rotate and the baffle and the movable blade move in a circular motion, a shearing force is generated between the movable blade and the fixed blade. Under the action of centrifugal force, the cleaning liquid in the unit area spirally rises along the inner wall of the conical cavity and is discharged into the feeding trough through the discharge port, so that the crushing tank not only has the function of crushing, but also has the function of lifting the mixture of the cleaning liquid and the material.

[0016] The present invention has the following beneficial effects: 1. The crushing and cleaning device proposed by the present invention, by providing a cleaning pool, a soaking and filtering pool and a crushing tank that are interconnected, the materials in the crushing tank are crushed under the atmosphere of the cleaning liquid. The smaller materials enter the soaking and filtering pool with the cleaning liquid for disinfection soaking, filtering and discharging. The cleaning liquid and the residual materials flow back into the cleaning pool, and then are cyclically transported into the soaking and filtering pool through the lifting of the crushing tank. The materials in the soaking and filtering pool act as filter materials, and the residual materials in the liquid are intercepted by the filter materials. In this way, the residual materials in the cleaning liquid are gradually reduced, greatly improving the recovery efficiency, and at the same time solving the problem of inconvenient material transportation.

[0017] 2. The crushing and cleaning device proposed by the present invention, the inner cavity of the crushing tank is a conical cavity, and a crushing assembly is arranged in the conical cavity. During the process of the crushing assembly operating to crush the materials, it not only has the functions of crushing and stirring to improve the cleaning speed, but also, under the action of centrifugal force, the cleaning liquid spirally rises along the inner wall of the conical cavity and is discharged through the discharge port, which has the function of lifting the mixture of the cleaning liquid and the material, accelerating the discharge, and providing power for the circulating flow of the cleaning liquid, realizing the function of transporting materials through the cleaning liquid.

[0018] 3. The crushing and cleaning device proposed by the present invention is provided with a reflux adjustment component between the cleaning pool and the soaking and filtering pool. The reflux adjustment component inputs the cleaning liquid in the soaking and filtering pool into the cleaning pool. On the one hand, it has the function of adjusting the liquid level difference between the cleaning pool and the soaking and filtering pool, providing conditions for subsequent water filtration of materials in the soaking and filtering pool. On the other hand, the cleaning liquid is injected into the discharge port through the injection pipe, pushing the materials accumulated in the discharge port into the conical cavity through the U-shaped channel, realizing the function of circularly crushing the materials, and at the same time having the function of cleaning the blocked materials upstream of the filter plate, ensuring the stable and reliable operation.

[0019] 4. The crushing and cleaning device proposed by the present invention is provided with a filter cylinder in the soaking and filtering pool and a spiral blade in the filter cylinder. When the filter cylinder is immersed in the environment of the cleaning liquid, the spiral blade rotates slowly, guiding the materials to enter the filter cylinder in sequence, prolonging the soaking and disinfection time of the materials. Moreover, as the materials in the filter cylinder increase, the gap between the materials gradually decreases, and the materials in the filter cylinder play the role of filtering filler, which can intercept the residual materials in the circularly input cleaning liquid, solving the problem that it is difficult to salvage the fine materials in the cleaning liquid and avoiding waste of resources; By reducing the liquid level height of the soaking and filtering pool through the reflux adjustment component, making the liquid level height lower than the filter cylinder, it is convenient to discharge the cleaning liquid in the filter cylinder, realizing the function of filtering water for the materials. After filtering water, increasing the rotation speed of the spiral blade can discharge the materials in the filter cylinder from the discharge pipe, realizing the function of automatic discharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall three-dimensional structure schematic diagram of the crushing and cleaning device proposed by the present invention; Figure 2 is the partial cross-sectional three-dimensional structure schematic of the crushing and cleaning device proposed by the present invention Figure 1 ; Figure 3 is the partial cross-sectional three-dimensional structure schematic of the crushing and cleaning device proposed by the present invention Figure 2 ; Figure 4 is the partial cross-sectional three-dimensional structure schematic of the crushing and cleaning device proposed by the present invention Figure 3 ; Figure 5 is the partial cross-sectional three-dimensional structure schematic of the crushing and cleaning device proposed by the present invention Figure 4 ; Figure 6 is the front cross-sectional structure schematic diagram of the crushing and cleaning device proposed by the present invention; Figure 7 is the top cross-sectional structure schematic diagram of the crushing and cleaning device proposed by the present invention; Figure 8 is the side cross-sectional structure schematic diagram of the crushing and cleaning device proposed by the present invention; Figure 9 Schematic cross-sectional view of the filter cartridge proposed by the present invention; Figure 10 Front sectional view of the filter cartridge proposed by the present invention.

[0021] In the figure: 1 cleaning tank, 2 soaking and filtering tank, 3 crushing tank, 4 discharge port, 5 filter plate, 6 filter cartridge, 7 reduction motor, 8 feeding chute, 9 soaking tank, 10 liquid collection tank, 11 discharge pipe, 12 first drainage cover, 13 second drainage cover, 14 impeller, 15 diversion pipe, 16 rotary oil cylinder, 17 water inlet, 18 gate plate, 19 liquid level sensor, 20 injection pipe, 21 U-shaped channel, 22 drive motor, 23 rotating shaft, 24 stirring rod, 25 baffle plate, 26 fixed blade, 27 movable blade, 28 spiral blade. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0024] Refer to Figures 1-10 , a crushing and cleaning device for medical waste plastics recycling, including a cleaning tank 1 and a soaking and filtering tank 2. A crushing tank 3 is fixedly installed inside the cleaning tank 1. The inner cavity of the crushing tank 3 is a conical cavity that is larger at the top and smaller at the bottom. A crushing component is arranged in the conical cavity. A feeding hopper communicating with the conical cavity is arranged at the upper end of the crushing tank 3. A discharge port 4 communicating with the conical cavity is arranged on the side of the crushing tank 3, and a filter plate 5 is installed in the discharge port 4.

[0025] Among them, referring to Figure 3 , the crushing component includes a drive motor 22 and a rotating shaft 23. The drive motor 22 is fixedly installed at the top of the crushing tank 3. The rotating shaft 23 is fixedly connected to the rotating end of the drive motor 22, and the rotating shaft 23 extends into the conical cavity. A plurality of stirring rods 24 and a plurality of baffle plates 25 are fixedly installed on the surface of the rotating shaft 23. The plurality of baffle plates 25 divide the space around the rotating shaft 23 into a plurality of unit areas.

[0026] The crushing assembly further includes a fixed blade 26 and a movable blade 27. The fixed blade 26 is embedded in the inner wall of the conical cavity, and the movable blade 27 is fixedly installed on the side of the baffle 25 away from the rotating shaft 23. When the driving motor 22 drives the rotating shaft 23 to rotate, and the baffle 25 and the movable blade 27 perform circular motion, a shearing force is generated between the movable blade 27 and the fixed blade 26. Under the action of centrifugal force, the cleaning liquid in the unit area spirally rises along the inner wall of the conical cavity and is discharged through the discharge port 4. Refer to Figure 8 .

[0027] A filter cylinder 6 is fixedly installed in the soaking and filtering tank 2. The pore diameter of the filter holes on the surface of the filter cylinder 6 is smaller than that of the filter holes on the surface of the filter plate 5. A spiral blade 28 is rotatably installed in the filter cylinder 6. A reduction motor 7 is fixedly installed at the end of the soaking and filtering tank 2, and the reduction motor 7 drives the spiral blade 28 to rotate. A reflux adjustment assembly is arranged between the cleaning tank 1 and the soaking and filtering tank 2; the discharge port 4 of the crushing tank 3 is communicated with the soaking and filtering tank 2, the inner cavity of the cleaning tank 1 is communicated with the bottom end of the conical cavity of the crushing tank 3, and cleaning liquid is injected into both the cleaning tank 1 and the soaking and filtering tank 2. The liquid level height difference between the cleaning tank 1 and the soaking and filtering tank 2 is controlled by the reflux adjustment assembly.

[0028] Specifically, as Figure 2 shown, the upper side of the inner cavity of the soaking and filtering tank 2 is a feeding trough 8 and a soaking trough 9, and the feeding trough 8 and the soaking trough 9 are separated by a vertical partition board. The lower side of the inner cavity of the soaking and filtering tank 2 is a liquid collecting trough 10, and the feeding trough 8 and the liquid collecting trough 10 are separated by a horizontal partition board. The soaking trough 9 is communicated with the liquid collecting trough 10. The filter cylinder 6 is arranged in the feeding trough 8 and the soaking trough 9, and the filter cylinder 6 is fixedly connected with the vertical partition board. The discharge port 4 of the crushing tank 3 is communicated with the feeding trough 8. A discharge pipe 11 is fixedly installed at one end of the filter cylinder 6 away from the feeding trough 8. The cleaning liquid in the crushing tank 3 flows into the feeding trough 8, the filter cylinder 6, the soaking trough 9, and the liquid collecting trough 10 in sequence.

[0029] In this embodiment, the reflux adjustment assembly includes a first drainage cover 12 and a second drainage cover 13 that are interconnected through a pipeline. The first drainage cover 12 is fixedly installed at the end of the soaking and filtering tank 2, and the first drainage cover 12 is communicated with the liquid collecting trough 10. An impeller 14 is rotatably installed in the first drainage cover 12. The reduction motor 7 drives the spiral blade 28 and the impeller 14 to rotate through sprocket and chain transmission. The second drainage cover 13 is fixedly installed at the end of the cleaning tank 1. By using the rotation of the impeller 14, the cleaning liquid in the liquid collecting trough 10 is input into the second drainage cover 13. It should be noted that the sprocket and chain transmission belongs to the conventional transmission means of the prior art and will not be elaborated here.

[0030] In this embodiment, refer to Figure 4 、 Figure 5, a diversion pipe 15 is rotatably installed inside the second drainage cover 13, a rotary oil cylinder 16 for driving the diversion pipe 15 to rotate is fixedly installed at the end of the second drainage cover 13, a water inlet 17 is arranged on the outer circumferential surface of the diversion pipe 15, and the water inlet 17 is in sliding contact with the inner wall of the second drainage cover 13. When the diversion pipe 15 rotates to the first angle, the water inlet 17 is in an open state, and the second drainage cover 13 is communicated with the inner cavity of the cleaning tank 1 through the diversion pipe 15.

[0031] A sluice gate 18 is fixedly installed at the end of the diversion pipe 15. When the diversion pipe 15 rotates to the first angle, the sluice gate 18 rotates to cover the passage opening where the inner cavity of the cleaning tank 1 communicates with the bottom end of the conical cavity of the crushing tank 3. The rotary oil cylinder 16 continues to drive the diversion pipe 15 to rotate. When the diversion pipe 15 rotates to the second angle, the sluice gate 18 is in a state of opening the passage opening where the inner cavity of the cleaning tank 1 communicates with the bottom end of the conical cavity of the crushing tank 3.

[0032] Under normal conditions, the water inlet 17 is in a closed state. Under the pushing action of the impeller 14, the cleaning liquid in the liquid collecting tank 10 is continuously input into the discharge port 4, as Figure 7 shown.

[0033] When it is necessary to reduce the liquid level height in the soaking and filtering tank 2, the rotary oil cylinder 16 drives the diversion pipe 15 to rotate to the first angle. At this time, the water inlet 17 is opened, and the cleaning liquid enters the cleaning tank 1 through the diversion pipe 15. Since the sluice gate 18 is in a closed state, the cleaning liquid is temporarily stored in the cleaning tank 1, and the cleaning liquid in the soaking and filtering tank 2 decreases, and the liquid level drops.

[0034] In this embodiment, a liquid level sensor 19 is fixedly installed on the surface of the soaking and filtering tank 2, and the start and stop of the rotary oil cylinder 16 are controlled by the liquid level sensor 19. A spray pipe 20 communicating with the discharge port 4 of the crushing tank 3 is arranged inside the second drainage cover 13. A U-shaped channel 21 is opened on the inner wall of the discharge port 4 of the crushing tank 3, and the outlet end of the U-shaped channel 21 communicates with the conical cavity.

[0035] Refer to Figure 7 , when the liquid level sensor 19 detects that the liquid level in the soaking and filtering tank 2 is too high, the rotary oil cylinder 16 starts and drives the diversion pipe 15 to rotate to the first angle to introduce the excess cleaning liquid into the cleaning tank 1. When the liquid level sensor 19 detects that the liquid level in the soaking and filtering tank 2 drops to the preset height, the rotary oil cylinder 16 drives the diversion pipe 15 to rotate in the reverse direction to close the water inlet 17, so that the cleaning liquid in the second drainage cover 13 is only input into the discharge port 4 from the spray pipe 20.

[0036] During the use process, medical waste plastics such as syringes, infusion sets, and drainage tubes are input into the crushing tank 3, and cleaning liquid (or disinfectant water is added) is injected into the crushing tank 3 and the soaking and filtering tank 2. Using the shearing force of the movable blade 27 and the fixed blade 26, the materials are crushed, and it is more convenient to clean the inner wall of the crushed materials; Smaller materials enter the feeding tank 8 with the cleaning liquid through the filter plate 5 and then flow into the filter cylinder 6. Larger materials are intercepted by the filter plate 5, and the cleaning liquid output by the spray pipe 20 pushes the materials intercepted by the filter plate 5 to be transported to the conical cavity through the U-shaped channel 21 for repeated crushing, as Figure 7 shown; At this time, the filter cylinder 6 is in a state of being immersed in the cleaning liquid, and the materials in the filter cylinder 6 are soaked and disinfected by the cleaning liquid. During this process, the spiral blade 28 rotates slowly, as Figure 7 shown, guiding the materials to move from left to right in the filter cylinder 6. It should be noted that, as Figure 9 shown, at this time, the materials are suspended in the cleaning liquid, and the frictional force of the spiral blade 28 on the materials is small. During the rotation of the spiral blade 28, the materials and the cleaning liquid can rotate together with the spiral blade 28, and the extrusion force of the spiral blade 28 on the materials is very small. When the internal pressure of the materials in the filter cylinder 6 is insufficient, the materials cannot be discharged from the discharge pipe 11 at this time, providing sufficient time for the soaking and disinfection of the materials; As the materials in the filter cylinder 6 gradually increase, the materials are squeezed against each other, and the gaps between the materials decrease. Since the cleaning liquid contains fine materials that can pass through the surface filter holes of the filter cylinder 6, the mutually squeezed materials can intercept the fine materials in the cleaning liquid, reducing the content of fine materials in the cleaning liquid; After the soaking and disinfection are completed, as Figure 10 shown, the rotary oil cylinder 16 drives the diversion pipe 15 to rotate to the first angle, so that the cleaning liquid in the soaking filter tank 2 is input into the cleaning tank 1 for temporary storage. The liquid level in the soaking filter tank 2 drops, and the rotation speed of the spiral blade 28 increases, squeezing the materials in the filter cylinder 6 to discharge the materials from the discharge pipe 11 and achieving the effect of discharging the materials that enter first first. In addition, when the rotation speed of the spiral blade 28 increases, the rotation speed of the impeller 14 also increases, accelerating the drop speed of the liquid level in the soaking filter tank 2; After the discharging is completed, the rotary oil cylinder 16 drives the diversion pipe 15 to rotate to the second angle. At this time, the gate plate 18 is opened, as Figure 5 shown, and the cleaning liquid in the cleaning tank 1 enters the crushing tank 3 for recycling. It should be noted that the cleaning liquid in the cleaning tank 1 also contains the above-mentioned fine materials. The above-mentioned "reducing the content of fine materials in the cleaning liquid" is achieved during the cyclic flow of the cleaning liquid among the cleaning tank 1, the crushing tank 3, and the soaking filter tank 2, which is a dynamic process.

[0037] In the crushing and cleaning device proposed by the present invention, the inner cavity of the crushing tank 3 is a conical cavity, and a crushing assembly is arranged in the conical cavity. During the process of the crushing assembly operating to crush the materials, there are not only the functions of crushing and stirring, improving the cleaning speed, but also, under the action of centrifugal force, the cleaning liquid spirally rises along the inner wall of the conical cavity and is discharged from the discharge port 4, having the function of lifting the mixture of the cleaning liquid and the materials, accelerating the discharging, and providing power for the cyclic flow of the cleaning liquid, realizing the function of transporting the materials through the cleaning liquid.

[0038] By arranging a reflux regulating component between the cleaning tank 1 and the soaking and filtering tank 2, the reflux regulating component inputs the cleaning liquid in the soaking and filtering tank 2 into the cleaning tank 1. On the one hand, it has the function of regulating the liquid level difference between the cleaning tank 1 and the soaking and filtering tank 2, providing conditions for subsequent water filtering of materials in the soaking and filtering tank 2. On the other hand, the cleaning liquid is injected into the discharge port 4 through the injection pipe 20, pushing the materials accumulated in the discharge port 4 into the conical cavity through the U-shaped channel 21, realizing the function of circularly crushing the materials, and at the same time having the function of cleaning the blocked materials upstream of the filter plate 5, ensuring stable and reliable operation.

[0039] By arranging a filter cylinder 6 in the soaking and filtering tank 2 and a spiral blade 28 in the filter cylinder 6, when the filter cylinder 6 is immersed in the environment of the cleaning liquid, the spiral blade 28 slowly rotates, guiding the materials to enter the filter cylinder 6 in sequence, prolonging the soaking and disinfection time of the materials. Moreover, as the materials in the filter cylinder 6 increase, the gaps between the materials gradually decrease, and the materials in the filter cylinder 6 play the role of filter packing, which can intercept the residual materials in the circulating input cleaning liquid. Then, the fine materials are discharged together with the materials in the filter cylinder 6, solving the problem that it is difficult to salvage the fine materials in the cleaning liquid and avoiding waste of resources. By the reflux regulating component, the liquid level height of the soaking and filtering tank 2 is reduced, making the liquid level height lower than that of the filter cylinder 6, facilitating the discharge of the cleaning liquid in the filter cylinder 6 and realizing the function of water filtering for the materials. After water filtering, by increasing the rotation speed of the spiral blade 28, the materials in the filter cylinder 6 can be discharged from the discharge pipe 11, realizing the function of automatic discharging.

[0040] The crushing and cleaning device proposed by the present invention, by arranging a mutually connected cleaning tank 1, soaking and filtering tank 2 and crushing tank 3, the materials in the crushing tank 3 are crushed under the atmosphere of the cleaning liquid. The smaller materials enter the soaking and filtering tank 2 along with the cleaning liquid for disinfection soaking, filtering and discharging. The cleaning liquid and the residual materials flow back into the cleaning tank 1, and then are circularly transported to the soaking and filtering tank 2 through the lifting of the crushing tank 3. The materials in the soaking and filtering tank 2 act as filter materials, and the residual materials in the liquid are intercepted by the filter materials. In this way, the residual materials in the cleaning liquid are gradually reduced, greatly improving the recovery efficiency, and at the same time solving the problem of inconvenient material transportation.

[0041] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A crushing and cleaning device for recycling medical waste plastics, comprising a cleaning tank (1) and an immersion and filtering tank (2), characterized in that: A crushing tank (3) is fixedly installed inside the cleaning tank (1); the inner cavity of the crushing tank (3) is a conical cavity that is larger at the top and smaller at the bottom; a crushing assembly is arranged in the conical cavity; a feeding hopper connected to the conical cavity is arranged at the upper end of the crushing tank (3); a discharge port (4) connected to the conical cavity is arranged on the side of the crushing tank (3); and a filter plate (5) is installed in the discharge port (4); A filter cartridge (6) is fixedly installed in the immersion filter tank (2), a spiral blade (28) is rotatably installed in the filter cartridge (6), a reduction motor (7) is fixedly installed at the end of the immersion filter tank (2), the reduction motor (7) drives the spiral blade (28) to rotate, and a reflux regulating component is arranged between the cleaning tank (1) and the immersion filter tank (2); The discharge port (4) of the crushing tank (3) is connected to the soaking and filtering tank (2), the inner cavity of the cleaning tank (1) is connected to the bottom end of the conical cavity of the crushing tank (3), cleaning liquid is injected into both the cleaning tank (1) and the soaking and filtering tank (2), and the height difference of the liquid levels in the cleaning tank (1) and the soaking and filtering tank (2) is controlled by a reflux regulating component.

2. A crushing and cleaning device for recycling medical waste plastics according to claim 1, characterized in that: The upper side of the inner cavity of the immersion filter tank (2) is a feed trough (8) and a immersion trough (9), the feed trough (8) and the immersion trough (9) are separated by a vertical partition, the lower side of the inner cavity of the immersion filter tank (2) is a liquid collecting trough (10), the feed trough (8) and the liquid collecting trough (10) are separated by a horizontal partition, the immersion trough (9) and the liquid collecting trough (10) are connected, the filter cartridge (6) is arranged in the feed trough (8) and the immersion trough (9), and the filter cartridge (6) is fixedly connected to the vertical partition, the discharge port (4) of the crushing tank (3) is connected to the feed trough (8), and a discharge pipe (11) is fixedly installed at one end of the filter cartridge (6) away from the feed trough (8).

3. A crushing and cleaning device for recycling medical waste plastics according to claim 2, characterized in that: The reflux regulating assembly comprises a first drainage hood (12) and a second drainage hood (13) which are interconnected via a pipeline, the first drainage hood (12) being fixedly mounted at the end of the soaking and filtering tank (2), and the first drainage hood (12) being connected to the liquid collecting tank (10), an impeller (14) being rotatably mounted in the first drainage hood (12), a reduction motor (7) driving the spiral blades (28) and the impeller (14) to rotate via a sprocket and a chain transmission, and the second drainage hood (13) being fixedly mounted at the end of the cleaning tank (1).

4. A crushing and cleaning device for recycling medical waste plastics according to claim 3, characterized in that: A flow guide pipe (15) is rotatably mounted in the second flow guide cover (13); a rotating oil cylinder (16) is fixedly mounted at the end of the second flow guide cover (13) for driving the flow guide pipe (15) to rotate; a water inlet (17) is provided on the outer circumferential surface of the flow guide pipe (15); the water inlet (17) is in sliding contact with the inner wall of the second flow guide cover (13); when the flow guide pipe (15) is rotated to a first angle, the water inlet (17) is in an open state, and the second flow guide cover (13) is connected to the inner cavity of the cleaning pool (1) through the flow guide pipe (15).

5. A crushing and cleaning device for recycling medical waste plastics according to claim 4, characterized in that: A gate plate (18) is fixedly mounted on the end of the guide tube (15). When the guide tube (15) is rotated to a first angle, the gate plate (18) rotates to cover a passage opening communicating between the inner cavity of the cleaning tank (1) and the bottom end of the conical cavity of the crushing tank (3). The rotary cylinder (16) continues to drive the guide tube (15) to rotate, so that when the guide tube (15) is rotated to a second angle, the gate plate (18) is in a state of opening the passage opening communicating between the inner cavity of the cleaning tank (1) and the bottom end of the conical cavity of the crushing tank (3).

6. A crushing and cleaning device for recycling medical waste plastics according to claim 5, characterized in that: A liquid level sensor (19) is fixedly mounted on the surface of the immersion and filtration tank (2), and the start and stop of the rotating oil cylinder (16) are controlled by the liquid level sensor (19).

7. A crushing and cleaning device for recycling medical waste plastics according to claim 6, characterized in that: The second drainage cover (13) is provided with a spray pipe (20) connected to the discharge port (4) of the crushing tank (3), and the inner wall of the discharge port (4) of the crushing tank (3) is provided with a U-shaped channel (21), and the outlet end of the U-shaped channel (21) is connected to the conical cavity.

8. The crushing and cleaning device for recycling medical waste plastics according to claim 7, characterized in that: The crushing assembly comprises a driving motor (22) and a rotating shaft (23), wherein the driving motor (22) is fixedly mounted on the top of the crushing tank (3), the rotating shaft (23) is fixedly connected to the rotating end of the driving motor (22), and the rotating shaft (23) extends into the conical cavity, and a plurality of stirring rods (24) and a plurality of baffles (25) are fixedly mounted on the surface of the rotating shaft (23), and the plurality of baffles (25) divide the space around the rotating shaft (23) into a plurality of unit areas.

9. A crushing and cleaning device for recycling medical waste plastics according to claim 8, characterized in that: The crushing assembly further comprises a fixed blade (26) and a movable blade (27), wherein the fixed blade (26) is embedded in the inner wall of the conical cavity, and the movable blade (27) is fixedly mounted on a side of the baffle (25) away from the rotating shaft (23). When the driving motor (22) drives the rotating shaft (23) to rotate, the baffle (25) and the movable blade (27) move in a circular motion, and a shear force is generated between the movable blade (27) and the fixed blade (26). Under the action of centrifugal force, the cleaning liquid in the unit area rises in a spiral along the inner wall of the conical cavity and is discharged from the discharge port (4) into the feed trough (8).

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