A crushing and cleaning device for recycling medical waste plastics

Abstract

The present invention relates to the field of plastic recycling technology, and discloses a crushing and cleaning device for recycling medical waste plastics, comprising a cleaning pool and an immersion and filtration pool, wherein a crushing tank is fixedly installed inside the cleaning pool, and the inner cavity of the crushing tank is a conical cavity that is larger at the top and smaller at the bottom, and a crushing assembly is provided in the conical cavity, and a feeding hopper connected to the conical cavity is provided at the upper end of the crushing tank, and a discharge port connected to the conical cavity is provided on the side of the crushing tank. According to the present invention, the material in the crushing tank is crushed in the atmosphere of the cleaning liquid, and the smaller material enters the immersion and filtration pool with the cleaning liquid for disinfection, immersion, filtration and discharge, and the cleaning liquid and residual material flow back into the cleaning pool, and then are circulated and transported to the immersion and filtration pool through the lifting of the crushing tank, and the material in the immersion and filtration pool acts as a filter material, and the residual material in the liquid is intercepted by the filter material. Such a cycle gradually reduces the residual material in the cleaning liquid, and solves the problem of inconvenient material transportation.

Description

Technical Field

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

[0002] With the continuous development of medical and health care, disposable medical plastic waste is increasing. By recycling and reusing medical waste plastics, we can avoid environmental pollution, realize waste reuse, turn waste into treasure, turn harm into benefit, save resources for the country, and achieve good social and economic benefits.

[0003] Patent document CN105014823B discloses a plastic film crushing, cleaning, and recycling system, comprising a feeder and a washing device. The system also includes a crusher positioned between the feeder and washing devices, a rinse and decontamination device and a discharge device positioned sequentially behind the washing device, a washing conveyor positioned between the crusher and washing devices, and a rinse conveyor positioned between the washing device and the rinse and decontamination device. This system prevents clogging of the suction pipe when handling large plastic films, ensuring effective cleaning.

[0004] In common plastic recycling crushing and cleaning devices, the crushing and cleaning processes are independently set. The crushed materials are transported to the cleaning mechanism through a conveyor. After cleaning, the materials must be salvaged. In particular, the small fragments in the cleaning liquid are difficult to salvage and are often discharged with the sediment, resulting in a waste of resources. Based on this, the existing plastic recycling devices with independent crushing and cleaning settings have the problem of inconvenient material transportation. Conveyors are required to transport materials between each process, resulting in a relatively large 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 inconvenience in material transportation in the existing plastic recycling device with independent crushing and cleaning arrangements in the prior art, and to propose a crushing and cleaning device for recycling medical waste plastics.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a crushing and cleaning device for recycling medical waste plastics, including a cleaning tank and an immersion and filtration tank, a crushing tank is fixedly installed inside the cleaning tank, the inner cavity of the crushing tank is a conical cavity with a larger upper part and a smaller lower part, 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, a discharge port connected to 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 immersion filter tank, and a spiral blade is rotatably installed in the filter cartridge. A reduction motor is fixedly installed at the end of the immersion filter tank, and the reduction motor drives the spiral blade to rotate. A reflux regulating component is provided between the cleaning tank and the immersion filter tank.

[0008] The discharge port of the crushing tank is connected to the immersion filter tank, and the inner cavity of the cleaning tank is connected to the bottom end of the conical cavity of the crushing tank. Cleaning liquid is injected into both the cleaning tank and the immersion filter tank. The liquid level difference in the cleaning tank and the immersion filter tank is controlled by the reflux adjustment component. The cleaning liquid participates in multiple processes of crushing, stirring, cleaning, immersion and feeding, solving the problem of inconvenient material recovery and transportation.

[0009] Preferably, the upper side of the inner cavity of the immersion filter tank is a feed trough and a immersion trough, the feed trough and the immersion trough are separated by a vertical partition, the lower side of the inner cavity of the immersion filter tank is a liquid collecting trough, the feed trough and the liquid collecting trough are separated by a horizontal partition, the immersion trough is connected with the liquid collecting trough, the filter cartridge is arranged in the feed trough and the immersion trough, and the filter cartridge is fixedly connected to the vertical partition, the discharge port of the crushing tank is connected with the feed trough, and a discharge pipe is fixedly installed at one end of the filter cartridge away from the feed trough. When the cleaning liquid in the liquid collecting trough is discharged, the liquid level in the immersion trough drops, which provides convenience for filtering and discharging the material in the filter cartridge.

[0010] Preferably, the reflux regulation assembly includes a first drainage hood and a second drainage hood connected to each other through a pipeline, the first drainage hood is fixedly installed at the end of the immersion filter tank, and the first drainage hood is connected to the liquid collection tank, an impeller is rotatably installed in the first drainage hood, and the reduction motor drives the spiral blades and impeller to rotate through a sprocket and a chain transmission, the second drainage hood is fixedly installed at the end of the cleaning tank, and the rotating impeller provides power for the circulation of the cleaning liquid.

[0011] Preferably, a guide pipe is rotatably installed in the second drainage cover, and a rotating oil cylinder for driving the guide pipe to rotate is fixedly installed at the end of the second drainage cover. A water inlet is provided on the outer circular surface of the guide pipe, and the water inlet is in sliding contact with the inner wall of the second drainage cover. When the guide pipe is rotated to the first angle, the water inlet is in an open state, and the second drainage cover is connected with the inner cavity of the cleaning pool through the guide pipe. The cleaning pool has the function of temporarily storing cleaning liquid so as to adjust the liquid level difference in the cleaning pool and the immersion filter pool.

[0012] Preferably, a gate is fixedly installed at the end of the guide tube. When the guide tube is rotated to a first angle, the gate rotates to cover the channel opening connecting the inner cavity of the cleaning tank and the bottom end of the conical cavity of the crushing tank. The rotating cylinder continues to drive the guide tube to rotate, so that when the guide tube is rotated to a second angle, the gate is in a state of opening the channel opening connecting the inner cavity of the cleaning tank and the bottom end of the conical cavity of the crushing tank. A liquid level sensor is fixedly installed on the surface of the immersion filter tank. The start and stop of the rotating cylinder is controlled by the liquid level sensor, and the liquid level height in the immersion filter tank can be controlled by the liquid level sensor.

[0013] An injection pipe connected to the discharge port of the crushing tank is provided in the second drainage hood. A U-shaped channel is opened on the inner wall of the discharge port of the crushing tank. The outlet end of the U-shaped channel is connected to the conical cavity, so that the cleaning liquid in the immersion filter tank can flow back to the crushing tank for recycling.

[0014] Preferably, the crushing assembly includes a drive motor and a rotating shaft. The drive motor is fixedly mounted on the top of the crushing tank. The rotating shaft is fixedly connected to the rotating end of the drive motor and extends into the conical cavity. A plurality of stirring rods and a plurality of baffles are fixedly mounted 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 component also includes a fixed blade and a movable blade. The fixed blade is embedded in the inner wall of the conical cavity, and 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, the baffle and the movable blade move in a circular motion, and the movable blade and the fixed blade generate shear force. Under the action of centrifugal force, the cleaning liquid in the unit area spirals up along the inner wall of the conical cavity and is discharged into the feed trough from 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 cleaning liquid and material.

[0016] The present invention has the following beneficial effects:

[0017] 1. The crushing and cleaning device proposed in the present invention is provided with a cleaning pool, an immersion and filtration pool and a crushing tank which are interconnected. The material in the crushing tank is crushed in the atmosphere of the cleaning liquid. The smaller material enters the immersion and filtration pool with the cleaning liquid for disinfection, immersion, filtration and discharge. The cleaning liquid and residual material return to the cleaning pool and are then circulated to the immersion and filtration pool through the lifting of the crushing tank. The material in the immersion and filtration pool acts as filter material, and the residual material in the liquid is intercepted by the filter material. Such a cycle gradually reduces the residual material in the cleaning liquid, greatly improves the recovery efficiency, and solves the problem of inconvenient material transportation.

[0018] 2. The crushing and cleaning device proposed in the present invention has a conical inner cavity of the crushing tank, and a crushing assembly is arranged in the conical cavity. The operation of the crushing assembly to crush the material not only has the effect of crushing and stirring, thereby 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, which has the effect of lifting the mixture of the cleaning liquid and the material, accelerating the discharge, and providing power for the circulation of the cleaning liquid, thereby realizing the function of transporting the material through the cleaning liquid.

[0019] 3. The crushing and cleaning device proposed in the present invention provides a reflux regulating component between the cleaning tank and the immersion filter tank. The reflux regulating component inputs the cleaning liquid in the immersion filter tank into the cleaning tank. On the one hand, it has the function of regulating the liquid level difference between the cleaning tank and the immersion filter tank, providing conditions for subsequent material filtration in the immersion filter tank. On the other hand, the cleaning liquid is injected into the discharge port through the injection pipe, pushing the material accumulated in the discharge port into the conical cavity through the U-shaped channel, realizing the cyclic crushing function of the material, and at the same time has the function of cleaning the material blocking the upstream of the filter plate, ensuring stable and reliable operation.

[0020] 4. The crushing and cleaning device proposed by the present invention arranges a filter cartridge in the immersion filter tank and a spiral blade in the filter cartridge. When the filter cartridge is immersed in the cleaning liquid, the spiral blade rotates slowly, guiding the materials to enter the filter cartridge in order, thereby extending the immersion and disinfection time of the materials. Moreover, as the amount of materials in the filter cartridge increases, the gaps between the materials gradually decrease. The materials in the filter cartridge act as filter fillers, which can intercept residual materials in the circulating cleaning liquid, thus solving the problem of small materials in the cleaning liquid being difficult to salvage and avoiding waste of resources.

[0021] The reflux regulating component is used to lower the liquid level of the immersion filter tank so that the liquid level is lower than the filter cartridge, which facilitates the discharge of the cleaning liquid in the filter cartridge and realizes the function of filtering the material. After filtering the water, the speed of the spiral blade is increased to discharge the material in the filter cartridge from the discharge pipe, realizing the function of automatic discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the crushing and cleaning device proposed in the present invention;

[0023] Figure 2 This is a partial cross-sectional schematic diagram of the crushing and cleaning device proposed in the present invention. Figure 1 ;

[0024] Figure 3 This is a partial cross-sectional schematic diagram of the crushing and cleaning device proposed in the present invention. Figure 2 ;

[0025] Figure 4 This is a partial cross-sectional schematic diagram of the crushing and cleaning device proposed in the present invention. Figure 3 ;

[0026] Figure 5 This is a partial cross-sectional schematic diagram of the crushing and cleaning device proposed in the present invention. Figure 4 ;

[0027] Figure 6 This is a schematic diagram of the front cross-section structure of the crushing and cleaning device proposed in the present invention;

[0028] Figure 7This is a schematic diagram of the top cross-section structure of the crushing and cleaning device proposed in the present invention;

[0029] Figure 8 This is a schematic side sectional view of the crushing and cleaning device proposed in the present invention;

[0030] Figure 9 This is a schematic cross-sectional view of the filter cartridge proposed by the present invention;

[0031] Figure 10 This is a schematic front cross-sectional view of the filter cartridge proposed by the present invention.

[0032] In the figure: 1 cleaning tank, 2 immersion filter tank, 3 crushing tank, 4 discharge port, 5 filter plate, 6 filter cartridge, 7 reduction motor, 8 feed trough, 9 immersion tank, 10 liquid collecting tank, 11 discharge pipe, 12 first drainage cover, 13 second drainage cover, 14 impeller, 15 guide pipe, 16 rotary cylinder, 17 water inlet, 18 gate, 19 liquid level sensor, 20 injection pipe, 21 U-shaped channel, 22 drive motor, 23 rotating shaft, 24 stirring rod, 25 baffle, 26 fixed blade, 27 movable blade, 28 spiral blade. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0035] Reference Figures 1-10 A crushing and cleaning device for recycling medical waste plastics includes a cleaning pool 1 and an immersion and filtering pool 2. A crushing tank 3 is fixedly installed inside the cleaning pool 1. The inner cavity of the crushing tank 3 is a conical cavity with a larger upper part and a smaller lower part. A crushing component 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.

[0036] Among them, reference Figure 3The crushing assembly includes a drive motor 22 and a rotating shaft 23. The drive motor 22 is fixedly installed on 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 baffles 25 are fixedly installed on the surface of the rotating shaft 23. The plurality of baffles 25 divide the space around the rotating shaft 23 into a plurality of unit areas.

[0037] The crushing assembly also 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, the baffle 25 and the movable blade 27 move in a circular motion. The movable blade 27 and the fixed blade 26 generate a shear force. Under the action of centrifugal force, the cleaning liquid in the unit area spirals up along the inner wall of the conical cavity and is discharged from the discharge port 4. Figure 8 .

[0038] A filter cartridge 6 is fixedly installed in the immersion filter tank 2. The filter pore diameter on the surface of the filter cartridge 6 is smaller than the filter pore diameter on the surface of the filter plate 5. 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. A reflux regulation component is provided between the cleaning tank 1 and the immersion filter tank 2; the discharge port 4 of the crushing tank 3 is connected to the immersion filter tank 2, and 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 immersion filter tank 2, and the liquid level difference in the cleaning tank 1 and the immersion filter tank 2 is controlled by the reflux regulation component.

[0039] Specifically, such as Figure 2 As shown, the upper side of the inner cavity of the immersion filter tank 2 is the feed trough 8 and the immersion trough 9, which are separated by a vertical partition, and the lower side of the inner cavity of the immersion filter tank 2 is the liquid collecting tank 10, which are separated by a horizontal partition, and the immersion trough 9 is connected with the liquid collecting tank 10. 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 with 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, and the cleaning liquid in the crushing tank 3 flows into the feed trough 8, the filter cartridge 6, the immersion trough 9 and the liquid collecting tank 10 in turn.

[0040] In this embodiment, the reflux regulation assembly includes a first drainage hood 12 and a second drainage hood 13 interconnected by a pipe. The first drainage hood 12 is fixedly installed at the end of the immersion filter pool 2, and the first drainage hood 12 is connected to the liquid collection tank 10. An impeller 14 is rotatably installed in the first drainage hood 12. The reduction motor 7 drives the spiral blade 28 and the impeller 14 to rotate through a sprocket and a chain transmission. The second drainage hood 13 is fixedly installed at the end of the cleaning pool 1. The rotation of the impeller 14 is used to input the cleaning liquid in the liquid collection tank 10 into the second drainage hood 13. It should be noted that the transmission through the sprocket and the chain is a conventional transmission means in the prior art and will not be elaborated here.

[0041] In this embodiment, reference Figure 4 、 Figure 5 A guide pipe 15 is rotatably installed in the second guide cover 13, and a rotating cylinder 16 is fixedly installed at the end of the second guide cover 13 to drive the guide pipe 15 to rotate. A water inlet 17 is provided on the outer circular surface of the guide pipe 15, and the water inlet 17 is in sliding contact with the inner wall of the second guide cover 13. When the guide pipe 15 is rotated to the first angle, the water inlet 17 is in an open state, and the second guide cover 13 is connected with the inner cavity of the cleaning pool 1 through the guide pipe 15.

[0042] A gate plate 18 is fixedly installed at 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 the passage opening connecting the inner cavity of the cleaning tank 1 and the bottom end of the conical cavity of the crushing tank 3. The rotating 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 connecting the inner cavity of the cleaning tank 1 and the bottom end of the conical cavity of the crushing tank 3.

[0043] Under normal conditions, the water inlet 17 is closed, and the cleaning liquid in the sump 10 is continuously fed into the discharge port 4 under the driving action of the impeller 14. Figure 7 shown.

[0044] When it is necessary to lower the liquid level in the immersion filter tank 2, the rotating cylinder 16 drives the guide 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 guide pipe 15. Since the gate 18 is in a closed state, the cleaning liquid is temporarily stored in the cleaning tank 1, the cleaning liquid in the immersion filter tank 2 is reduced, and the liquid level drops.

[0045] In this embodiment, a liquid level sensor 19 is fixedly installed on the surface of the immersion filtration tank 2, and the start and stop of the rotating cylinder 16 is controlled by the liquid level sensor 19. A spray pipe 20 connected to the discharge port 4 of the crushing tank 3 is provided in the second drainage cover 13, and a U-shaped channel 21 is provided on the inner wall of the discharge port 4 of the crushing tank 3, and the outlet end of the U-shaped channel 21 is connected to the conical cavity.

[0046] refer to Figure 7When the liquid level sensor 19 detects that the liquid level in the immersion filter tank 2 is too high, the rotating cylinder 16 starts and drives the guide pipe 15 to rotate to the first angle, introducing the excess cleaning liquid into the cleaning tank 1. When the liquid level sensor 19 detects that the liquid level in the immersion filter tank 2 drops to a preset height, the rotating cylinder 16 drives the guide pipe 15 to rotate in the opposite direction, closes the water inlet 17, and allows the cleaning liquid in the second drainage cover 13 to be only input into the discharge port 4 from the injection pipe 20.

[0047] During use, syringes, infusion sets, catheters and other medical waste plastics are put into the crushing tank 3, and cleaning liquid (or disinfectant) is injected into the crushing tank 3 and the immersion filter tank 2. The movable blade 27 and the fixed blade 26 use shear force to crush the materials, making it more convenient to clean the inner wall of the crushed materials.

[0048] Smaller materials pass through the filter plate 5 along with the cleaning liquid and enter the feed trough 8, and then flow into the filter cartridge 6. Larger materials are intercepted by the filter plate 5. The cleaning liquid output by the injection 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. Figure 7 As shown;

[0049] The filter cartridge 6 is now immersed in the cleaning liquid, and the material in the filter cartridge 6 is soaked and disinfected by the cleaning liquid. During this process, the spiral blade 28 rotates slowly, as shown in FIG. Figure 7 As shown, the material is guided to move from left to right in the filter cartridge 6. It should be noted that, as Figure 9 As shown, at this time, the material is suspended in the cleaning liquid, and the friction force of the spiral blade 28 on the material is small. During the rotation of the spiral blade 28, the material and the cleaning liquid can rotate together with the spiral blade 28. The squeezing force of the spiral blade 28 on the material is very small. When the internal pressure of the material in the filter cartridge 6 is insufficient, the material cannot be discharged from the discharge pipe 11 at this time, providing sufficient time for the soaking and disinfection of the material;

[0050] As the material in the filter cartridge 6 gradually increases, the materials squeeze each other and the gaps between the materials decrease. Since the cleaning liquid contains fine materials that can pass through the filter pores on the surface of the filter cartridge 6, the materials squeezed together can intercept the fine materials in the cleaning liquid, reducing the content of fine materials in the cleaning liquid.

[0051] After the immersion disinfection is completed, Figure 10 As shown, the rotary cylinder 16 drives the guide pipe 15 to rotate to the first angle, so that the cleaning liquid in the immersion filter tank 2 is input into the cleaning tank 1 for temporary storage, the liquid level in the immersion filter tank 2 drops, the rotation speed of the spiral blade 28 increases, squeezing the material in the filter cartridge 6, so that the material is discharged from the discharge pipe 11, and the effect of first-in-first-out of the material is achieved. In addition, the rotation speed of the spiral blade 28 increases, and the rotation speed of the impeller 14 also increases accordingly, which accelerates the speed of the liquid level in the immersion filter tank 2 to drop.

[0052] After the discharge is completed, the rotary cylinder 16 drives the guide tube 15 to rotate to the second angle. At this time, the gate 18 is opened. Figure 5 As shown, the cleaning liquid in the cleaning tank 1 enters the crushing tank 3 and is circulated. 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" refers to the cleaning liquid circulating between the cleaning tank 1, the crushing tank 3 and the immersion filter tank 2, which is a dynamic process.

[0053] The crushing and cleaning device proposed in the present invention has an inner cavity of the crushing tank 3 as a conical cavity, and a crushing assembly is arranged in the conical cavity. The process of the crushing assembly operating to crush the material not only has the effects of crushing and stirring, thereby 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, which has the effect of lifting the mixture of the cleaning liquid and the material, accelerating the discharge, and providing power for the circulation of the cleaning liquid, thereby realizing the function of transporting the material through the cleaning liquid.

[0054] By setting a reflux regulating component between the cleaning tank 1 and the immersion filter tank 2, the reflux regulating component inputs the cleaning liquid in the immersion filter 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 immersion filter tank 2, providing conditions for the subsequent filtration of the material in the immersion filter tank 2. On the other hand, the cleaning liquid is injected into the discharge port 4 by the injection pipe 20, pushing the material accumulated in the discharge port 4 into the conical cavity through the U-shaped channel 21, realizing the circulation crushing function of the material, and at the same time has the function of cleaning the material blocking the upstream of the filter plate 5, ensuring stable and reliable operation.

[0055] By arranging the filter cartridge 6 in the immersion filter pool 2 and arranging the spiral blades 28 in the filter cartridge 6, when the filter cartridge 6 is immersed in the cleaning liquid environment, the spiral blades 28 rotate slowly to guide the materials to enter the filter cartridge 6 in order, thereby extending the immersion and disinfection time of the materials. Moreover, as the materials in the filter cartridge 6 increase, the gaps between the materials gradually decrease. The materials in the filter cartridge 6 act as filtering fillers, which can intercept the residual materials in the circulating cleaning liquid. Then, the fine materials are discharged together with the materials in the filter cartridge 6, thereby solving the problem that the fine materials in the cleaning liquid are difficult to salvage and avoiding waste of resources.

[0056] The liquid level of the immersion filter pool 2 is lowered by the reflux regulating component so that the liquid level is lower than the filter cartridge 6, which facilitates the discharge of the cleaning liquid in the filter cartridge 6 and realizes the function of filtering the water of the material. After filtering the water, the rotation speed of the spiral blade 28 is increased, and the material in the filter cartridge 6 can be discharged from the discharge pipe 11, realizing the function of automatic discharge.

[0057] The crushing and cleaning device proposed in the present invention is provided with a cleaning pool 1, an immersion and filtering pool 2 and a crushing tank 3 which are interconnected. The material in the crushing tank 3 is crushed in the atmosphere of the cleaning liquid, and the smaller material enters the immersion and filtering pool 2 with the cleaning liquid for disinfection, immersion, filtration and discharge. The cleaning liquid and residual material flow back into the cleaning pool 1, and are then lifted by the crushing tank 3 and circulated to the immersion and filtering pool 2. The material in the immersion and filtering pool 2 acts as filter material, and the residual material in the liquid is intercepted by the filter material. Such a cycle gradually reduces the residual material in the cleaning liquid, greatly improves the recovery efficiency, and solves the problem of inconvenient material transportation.

[0058] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection 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 with a larger upper portion and a smaller lower portion, a crushing assembly is arranged in the conical cavity, a feeding hopper in communication with the conical cavity is arranged at the upper end of the crushing tank (3), a discharge port (4) in communication 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); The upper side of the inner cavity of the immersion filter tank (2) is a feed trough (8) and an immersion trough (9), the lower side of the inner cavity of the immersion filter tank (2) is a liquid collecting trough (10), the discharge port (4) of the crushing tank (3) is connected to the feed trough (8), and a discharge pipe (11) is fixedly installed on the end of the filter cartridge (6) away from the feed trough (8); 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), and the reduction motor (7) drives the spiral blade (28) to rotate, and a reflux regulating component is provided between the cleaning tank (1) and the immersion filter tank (2); The reflux regulating assembly comprises a first drainage cover (12) and a second drainage cover (13) which are interconnected through a pipeline, the first drainage cover (12) being fixedly mounted at the end of the soaking and filtering tank (2), and the first drainage cover (12) being connected to the liquid collecting tank (10), an impeller (14) being rotatably mounted in the first drainage cover (12), a reduction motor (7) driving the spiral blades (28) and the impeller (14) to rotate through a sprocket and a chain transmission, and the second drainage cover (13) being fixedly mounted at the end of the cleaning tank (1); The second drainage cover (13) is provided with a spray pipe (20) connected to the discharge port (4) of the crushing tank (3); the inner wall of the discharge port (4) of the crushing tank (3) is provided with a U-shaped channel (21); the outlet end of the U-shaped channel (21) is connected to the conical cavity; The discharge port (4) of the crushing tank (3) is connected to the immersion filter tank (2), and 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 immersion filter tank (2), and the height difference of the liquid levels in the cleaning tank (1) and the immersion filter tank (2) is controlled by a reflux regulating component.

2. The crushing and cleaning device for recycling medical waste plastics according to claim 1, characterized in that: The feed trough (8) and the soaking trough (9) are separated by a vertical partition, the feed trough (8) and the liquid collecting trough (10) are separated by a horizontal partition, the soaking trough (9) and the liquid collecting trough (10) are connected, and the filter cartridge (6) is arranged in the feed trough (8) and the soaking trough (9), and the filter cartridge (6) is fixedly connected to the vertical partition.

3. The crushing and cleaning device for recycling medical waste plastics according to claim 2, characterized in that: A guide pipe (15) is rotatably installed in the second guide cover (13), and a rotating oil cylinder (16) for driving the guide pipe (15) to rotate is fixedly installed at the end of the second guide cover (13). A water inlet (17) is provided on the outer circumferential surface of the guide pipe (15), and the water inlet (17) is in sliding contact with the inner wall of the second guide cover (13). When the guide pipe (15) is rotated to a first angle, the water inlet (17) is in an open state, and the second guide cover (13) is connected to the inner cavity of the cleaning pool (1) through the guide pipe (15).

4. The crushing and cleaning device for recycling medical waste plastics according to claim 3, 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 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). 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).

5. The crushing and cleaning device for recycling medical waste plastics according to claim 4, characterized in that: A liquid level sensor (19) is fixedly mounted on the surface of the immersion filter tank (2), and the start and stop of the rotary oil cylinder (16) is controlled by the liquid level sensor (19).

6. The crushing and cleaning device for recycling medical waste plastics according to claim 5, 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.

7. The crushing and cleaning device for recycling medical waste plastics according to claim 6, characterized in that: The crushing assembly further includes 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 spirally rises 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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