Medical waste crushing and processing device

Abstract

The present invention discloses a medical waste crushing and processing device, comprising a crushing box, a feed hopper is provided in the crushing box, a primary crushing mechanism is provided in the feed hopper, a feed channel is provided in the crushing box, a secondary crushing mechanism is provided in the feed channel; a cavity connected to the feed channel is provided in the crushing box, a longitudinal partition is provided in the cavity, a liquid storage tank and a solid storage tank are provided on both sides of the longitudinal partition, a filtering and conveying mechanism is provided obliquely between the liquid storage tank and the feed channel, the high end of the filtering and conveying mechanism is located at the top of the solid storage tank, the low end of the filtering and conveying mechanism is located at the top of the liquid storage tank, and a disinfectant spraying mechanism is provided at the top of the cavity. The present invention has the functions of crushing and disinfecting medical waste, avoiding environmental pollution and the spread of pathogens caused by the treatment and transportation of medical waste, and is conducive to the classification treatment and recycling of medical waste.

Description

Technical Field

[0001] The invention belongs to the technical field of waste treatment, and in particular relates to a medical waste crushing and treatment device. Background Art

[0002] Medical waste is mainly solid waste generated by hospitals, relevant scientific research institutes and other medical institutions during the medical process, including contaminated waste produced by hospitals that has come into contact with patients' blood and flesh, such as used cotton balls, gauze, adhesive tape, wastewater, disposable medical instruments, post-operative waste, expired medicines, etc. Medical waste has the characteristics of spatial pollution, acute infection and latent pollution. Unlike domestic waste, medical waste contains a large number of bacteria, viruses and chemicals, and is highly contagious, biologically toxic and corrosive. Untreated or incompletely treated medical waste is randomly piled up, which can easily cause pollution to water, soil and air, and cause direct or indirect harm to the human body. It may also become the source of epidemics.

[0003] In the prior art, Chinese patent document CN220004342U discloses a medical waste crusher, including a device body and a multifunctional intelligent crushing mechanism, a pad is provided on one side of the device body, and a multifunctional intelligent crushing mechanism is connected to the outside of the device body. The medical waste crusher, first, places the device in a suitable position through the pad, which is convenient for use and improves the efficiency of the operator, then turns on the device, uses a detection device for detection, can intelligently and accurately detect the entry and exit of waste, and then can also use a touch panel for touch operation, which is convenient for the operator to operate, identify the internal waste, and then conveniently and quickly crush it through the crusher, use a connecting pipe to transmit it to the inside of the device, control the embedded barrel and the telescopic rod to cooperate through the extrusion plate to integrate the medical waste together, which is convenient for subsequent cleaning, thus completing a medical waste crusher.

[0004] With regard to the above-mentioned prior art, after the medical waste is crushed, it is not disinfected, resulting in insufficient treatment and disinfection of the medical waste, and there are certain safety hazards in the crushed medical waste. Therefore, it is urgent to develop a medical waste treatment device that can quickly crush the medical waste and sterilize the medical waste. Summary of the invention

[0005] The purpose of the present invention is to provide a medical waste crushing and processing device to solve the above-mentioned problems existing in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a medical waste crushing and processing device, comprising a crushing box, the crushing box is provided with a feed hopper, the feed hopper is provided with a primary crushing mechanism, the crushing box is provided with a feed channel connected to the feed hopper, and the feed channel is provided with a secondary crushing mechanism; a cavity connected to the feed channel is provided inside the crushing box, a longitudinal partition is provided in the cavity, and a liquid storage tank and a solid storage tank are provided on both sides of the longitudinal partition, respectively, the liquid storage tank is located below the feed channel, a filtering and conveying mechanism is obliquely provided between the liquid storage tank and the feed channel, the high end of the filtering and conveying mechanism is located at the top of the solid storage tank, and the low end of the filtering and conveying mechanism is located at the top of the liquid storage tank, the filtering and conveying mechanism is used to filter and convey the waste conveyed by the feed channel, so as to convey the filtered solid waste to the solid storage tank, and the filtered waste liquid falls into the liquid storage tank; a disinfectant spraying mechanism is provided at the top of the cavity, and the disinfectant spraying mechanism is used to spray disinfectant on the waste on the filtering and conveying mechanism.

[0007] As an optional implementation of the above technical solution, a three-stage crushing mechanism and a screen drum are provided in the solid storage tank, a solid discharge port is provided at the bottom of the solid storage tank, the screen drum is arranged below the three-stage crushing mechanism, an open end is provided at the top of the screen drum, and a four-stage crushing mechanism is provided inside the screen drum.

[0008] As an optional implementation of the above technical solution, the three-stage crushing mechanism includes a rotating grinding disc and a fixed grinding disc that match each other, the rotating grinding disc is connected to a three-stage driving mechanism, the rotating grinding disc is arranged on the inner side of the fixed grinding disc, and a grinding channel is provided between the rotating grinding disc and the fixed grinding disc, the size of the grinding channel gradually decreases from top to bottom, and the bottom of the grinding channel is connected to the open end of the screen drum.

[0009] As an optional implementation of the above technical solution, the three-stage driving mechanism includes a three-stage driving motor, the three-stage driving motor is connected to a rotating shaft, one end of the rotating shaft passes through the screen cylinder and is connected to the rotating grinding disc.

[0010] As an optional implementation of the above technical solution, the four-stage crushing mechanism includes a plurality of four-stage crushing blades, and the four-stage crushing blades are connected to the rotating shaft.

[0011] As an optional implementation of the above technical solution, a solid material guide plate is provided on the top of the solid storage tank, and the solid material guide plate is used to guide the solid waste of the waste into the grinding channel.

[0012] As an optional implementation of the above technical solution, a liquid guide plate is provided on the top of the longitudinal partition plate, and the liquid guide plate is used to guide the waste liquid of the waste into the liquid storage tank.

[0013] As an optional implementation of the above technical solution, the secondary crushing mechanism includes two oppositely arranged knife shafts, a secondary driving mechanism is provided between the two knife shafts, and multiple secondary blades are provided on the two knife shafts at intervals. The secondary blades of the two knife shafts are arranged one by one, and the blade areas of a pair of secondary blades match each other.

[0014] As an optional implementation of the above technical solution, the cutting edge region of the secondary blade is provided with a bevel, and the bevels of the cutting edge regions of a pair of secondary blades are in opposite directions and mesh with each other.

[0015] As an optional implementation of the above technical solution, the secondary drive mechanism includes a secondary drive motor, a driving gear, a first driven gear and a second driven gear, the output end of the secondary drive motor is connected to the driving gear, the driving gear is meshed with the first driven gear, the first driven gear and the second driven gear are meshed, and the first driven gear and the second driven gear are respectively arranged on the two knife shafts.

[0016] As an optional implementation of the above technical solution, there is a gap between the lower end of the filtering and conveying mechanism and the inner wall of the cavity, and the gap is provided with an elastic baffle, which is used to prevent solid waste in the waste from falling into the liquid storage tank through the gap.

[0017] As an optional implementation of the above technical solution, the elastic baffle includes an inclined plate body and a spring, one end of the inclined plate body is rotatably connected to the inner wall of the cavity, the other end of the inclined plate body is in movably contact with the filtering and conveying mechanism, and the two ends of the spring are respectively connected to the inclined plate body and the inner wall of the cavity.

[0018] As an optional implementation of the above technical solution, the filtering and conveying mechanism includes a filtering drive mechanism, an active roller, a driven roller and an annular conveyor belt. The output end of the filtering drive mechanism is connected to the active roller. The active roller and the driven roller are connected by an annular conveyor belt. The annular conveyor belt is obliquely arranged between the liquid storage tank and the solid storage tank, and the surface of the annular conveyor belt is evenly distributed with filtering holes.

[0019] As an optional implementation of the above technical solution, a plurality of material-bearing baffles are provided at intervals on the surface of the annular conveyor belt.

[0020] As an optional implementation of the above technical solution, the primary crushing mechanism includes a primary driving mechanism and a primary crushing blade, and the output end of the primary driving mechanism is connected to the primary crushing blade.

[0021] The beneficial effects of the present invention are:

[0022] The present invention provides a medical waste crushing and processing device, wherein a primary crushing mechanism is provided in a feed hopper, a secondary crushing mechanism is provided in a feed channel, a filtering and conveying mechanism filters and conveys the waste conveyed by the feed channel, so as to convey the filtered solid waste to a solid storage tank, and the filtered waste liquid falls into a liquid storage tank, and a disinfectant spraying mechanism sprays disinfectant on the waste on the filtering and conveying mechanism. The present invention utilizes a primary crushing mechanism to perform primary crushing processing on medical waste, and then utilizes a secondary crushing mechanism to perform secondary crushing processing on medical waste, the solid waste after crushing processing is conveyed to the solid storage tank through the filtering and conveying mechanism, and the waste liquid falls into the liquid storage tank, and the disinfectant spraying mechanism can disinfect the solid waste and the waste liquid. The present invention has the functions of crushing and disinfecting medical waste, avoiding environmental pollution and the spread of pathogens caused by medical waste during the processing and transportation process, and is conducive to the classification and recycling of medical waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of a medical waste crushing and processing device in one embodiment of the present invention;

[0024] Figure 2 yes Figure 1 Enlarged view of part A in the middle;

[0025] Figure 3 is a schematic structural diagram of a filtering and conveying mechanism in one embodiment of the present invention;

[0026] Figure 4 It is a structural schematic diagram of a secondary crushing mechanism in one embodiment of the present invention;

[0027] Figure 5 It is a schematic structural diagram of a three-stage crushing mechanism and a four-stage crushing mechanism in one embodiment of the present invention.

[0028] In the figure: 1-crushing box; 2-feed hopper; 3-primary crushing mechanism; 4-feeding channel; 5-secondary crushing mechanism; 6-longitudinal partition plate; 7-liquid storage tank; 8-solid storage tank; 9-disinfectant spraying mechanism; 10-third-level crushing mechanism; 11-screen drum; 12-solid discharge port; 13-fourth-level crushing mechanism; 14-rotating grinding disc; 15-fixed grinding disc; 16-third-level driving motor; 17-rotating shaft; 18-fourth-level crushing blade; 19-solid guide plate; 20-liquid guide plate; 21-knife shaft; 22-secondary blade; 23-secondary driving motor; 24-driving gear; 25-first driven gear; 26-second driven gear; 27-tilted plate; 28-spring; 29-filtering drive mechanism; 30-driving roller; 31-driven roller; 32-annular conveyor belt; 33-filter hole; 34-material baffle; 35-liquid discharge port. DETAILED DESCRIPTION

[0029] like Figure 1-Figure 5 As shown, this embodiment provides a medical waste crushing and processing device, including a crushing box 1, a feed hopper 2 is provided on the top of the crushing box 1, and a primary crushing mechanism 3 is provided in the feed hopper 2. Medical waste enters the crushing box 1 from the feed hopper 2, and is subjected to primary crushing processing by the primary crushing mechanism 3. The primary crushing mechanism 3 includes a primary driving mechanism and a primary crushing blade, and the output end of the primary driving mechanism is connected to the primary crushing blade. A feed channel 4 connected to the feed hopper 2 is provided inside the crushing box 1, and a secondary crushing mechanism 5 is provided in the feed channel 4. After being crushed by the primary crushing mechanism 3, the medical waste enters the feed channel 4, and is subjected to secondary crushing processing by the secondary crushing mechanism 5.

[0030] like Figure 1 As shown, a cavity connected to the feed channel 4 is provided inside the crushing box 1, and a longitudinal partition plate 6 is provided inside the cavity, and a liquid storage tank 7 and a solid storage tank 8 are provided on both sides of the longitudinal partition plate 6. The liquid storage tank 7 is used to store liquid in the waste, and a liquid discharge port 35 is provided at the bottom of the liquid storage tank 7, and the liquid is conveniently discharged by using the liquid discharge port 35. The liquid storage tank 7 is located below the feed channel 4, and a filtering and conveying mechanism is obliquely provided between the liquid storage tank 7 and the feed channel 4, the high end of the filtering and conveying mechanism is located at the top of the solid storage tank 8, and the low end of the filtering and conveying mechanism is located at the top of the liquid storage tank 7, and the filtering and conveying mechanism is used to filter and convey the waste conveyed by the feed channel 4, so as to convey the filtered solid waste to the solid storage tank 8, and the filtered waste liquid falls into the liquid storage tank 7. After being crushed by the secondary crushing mechanism 5, the medical waste falls onto the filtering and conveying mechanism. Since the filtering and conveying mechanism is arranged at an angle, the filtering and conveying mechanism can convey the solid waste in the waste to the solid storage tank 8, and the waste liquid in the waste to the liquid storage tank 7, thereby realizing the solid-liquid separation of the medical waste.

[0031] A disinfectant spraying mechanism 9 is provided at the top of the cavity, and the disinfectant spraying mechanism 9 is used to spray disinfectant onto the waste on the filter conveying mechanism. When the filter conveying mechanism conveys solids, the disinfectant spraying mechanism 9 sprays disinfectant onto the solid waste on the filter conveying mechanism, so that the solid waste is fully disinfected, and the excess disinfectant enters the liquid storage tank 7 along with the waste liquid, thereby achieving the disinfection function of the waste liquid.

[0032] The present invention utilizes a primary crushing mechanism 3 to perform primary crushing treatment on medical waste, and then utilizes a secondary crushing mechanism 5 to perform secondary crushing treatment on medical waste. The solid waste after crushing treatment is transported to a solid storage tank 8 through a filtering and conveying mechanism, and the waste liquid falls into a liquid storage tank 7. The disinfectant spraying mechanism 9 can disinfect the solid waste and the waste liquid. The present invention has the functions of crushing and disinfecting medical waste, avoiding environmental pollution and the spread of pathogens caused by the medical waste during the processing and transportation process, and is conducive to the classification and recycling of medical waste.

[0033] like Figure 1 As shown, in a specific embodiment, a three-stage crushing mechanism 10 and a screen drum 11 are provided in the solid storage tank 8, and a solid discharge port 12 is provided at the bottom of the solid storage tank 8 to facilitate the discharge of solid waste. The screen drum 11 is arranged below the three-stage crushing mechanism 10, and the screen drum 11 can be equipped with a driving motor. A driving pulley is provided at the output end of the driving motor, and a driven pulley is provided on the outer wall of the screen drum 11. A belt is connected between the driving pulley and the driven pulley, and the screen drum 11 is driven by the driving motor to rotate. An open end is provided at the top of the screen drum 11, and a four-stage crushing mechanism 13 is provided inside the screen drum 11. The three-stage crushing mechanism 10 performs three-stage crushing treatment on the solid waste, and then enters the screen drum 11, and the solid waste is screened by the screen drum 11. For solid waste with larger size inside the screen drum 11, the four-stage crushing mechanism 13 can be used to further crush the solid waste until the size of the solid waste can pass through the sieve holes of the screen drum 11 and enter the bottom of the solid storage tank 8, and then the solid waste is discharged from the solid discharge port 12.

[0034] like Figure 5 As shown, specifically, the three-stage crushing mechanism 10 includes a rotating grinding disc 14 and a fixed grinding disc 15 that match each other. The rotating grinding disc 14 is connected to a three-stage driving mechanism. The rotating grinding disc 14 is arranged on the inner side of the fixed grinding disc 15. A grinding channel is arranged between the rotating grinding disc 14 and the fixed grinding disc 15. The size of the grinding channel gradually decreases from top to bottom, and the bottom of the grinding channel is connected to the open end of the screen drum 11. The rotating grinding disc 14 and the fixed grinding disc 15 cooperate with each other to fully crush the solid waste. The crushed solid waste enters the inside of the screen drum 11 through the open end of the screen drum 11. The four-stage crushing mechanism 13 can further crush the solid waste. The completely crushed solid waste is discharged from the screen drum 11 into the bottom of the solid storage tank 8.

[0035] The three-stage drive mechanism includes a three-stage drive motor 16, and the three-stage drive motor 16 is connected to a rotating shaft 17. One end of the rotating shaft 17 passes through the screen drum 11 and is connected to the rotating grinding disc 14. A bearing is provided between the rotating shaft 17 and the screen drum 11. Preferably, the four-stage crushing mechanism 13 includes a plurality of four-stage crushing blades 18, and the four-stage crushing blades 18 are connected to the rotating shaft 17. The three-stage drive motor 16 can simultaneously drive the rotating grinding disc 14 and the four-stage crushing blades 18 to rotate, so as to fully crush the solid waste, which can effectively improve the crushing efficiency of the solid waste and reduce the energy consumption of the equipment.

[0036] In a specific embodiment, a solid guide plate 19 is provided on the top of the solid storage tank 8, and the solid guide plate 19 is used to guide the solid waste of the waste into the grinding channel. A liquid guide plate 20 is provided on the top of the longitudinal partition plate 6, and the liquid guide plate 20 is used to guide the waste liquid of the waste into the liquid storage tank 7, which is conducive to the solid-liquid separation of the waste.

[0037] like Figure 4 As shown, in a specific embodiment, the secondary crushing mechanism 5 includes two knife shafts 21 arranged opposite to each other, and a secondary driving mechanism is arranged between the two knife shafts 21, and the secondary driving mechanism drives the two knife shafts 21 to rotate in opposite directions at the same time. A plurality of secondary blades 22 are arranged at intervals on the two knife shafts 21, and the secondary blades 22 of the two knife shafts 21 are arranged one by one, and the blade areas of a pair of secondary blades 22 match each other. The secondary blades 22 of the two knife shafts 21 cooperate with each other, which has a good crushing effect on medical waste and is conducive to improving the treatment efficiency of medical waste. Preferably, the blade area of ​​the secondary blade 22 is provided with an inclined surface, and the inclined surfaces of the blade areas of a pair of secondary blades 22 are in opposite directions and interlock with each other. When the two knife shafts 21 rotate in opposite directions, the blade areas of the two secondary blades 22 interlock with each other, and the medical waste can be fully cut and crushed. It should be noted that the secondary crushing mechanism 5 can also be implemented by a pair of rollers.

[0038] Specifically, the secondary drive mechanism includes a secondary drive motor 23, a driving gear 24, a first driven gear 25, and a second driven gear 26. The output end of the secondary drive motor 23 is connected to the driving gear 24, the driving gear 24 is meshed with the first driven gear 25, the first driven gear 25 is meshed with the second driven gear 26, and the first driven gear 25 and the second driven gear 26 are respectively arranged on the two cutter shafts 21. The secondary drive motor 23 drives the first driven gear 25 and the second driven gear 26 to rotate through the driving gear 24, so that the two cutter shafts 21 rotate in the opposite direction, and the secondary blades 22 on the cutter shafts 21 are used to crush the medical waste.

[0039] In a specific embodiment, there is a gap between the lower end of the filter conveying mechanism and the inner wall of the cavity, and the gap is provided with an elastic baffle, one end of which is close to the surface of the filter conveying mechanism, and the elastic baffle is used to prevent solid waste in the waste from falling into the liquid storage tank 7 through the gap. Since there is a gap between the filter conveying mechanism and the inner wall of the cavity, in order to prevent solid waste from falling into the liquid storage tank 7 through the gap, the present invention uses an elastic baffle to block the solid waste, and the elastic baffle can move back and forth, which will not affect the normal operation of the filter conveying mechanism. Figure 2 As shown, specifically, the elastic baffle includes an inclined plate body 27 and a spring 28, one end of the inclined plate body 27 is rotatably connected to the inner wall of the cavity, the other end of the inclined plate body 27 is in active contact with the filtering and conveying mechanism, and the two ends of the spring 28 are respectively connected to the inclined plate body 27 and the inner wall of the cavity.

[0040] like Figure 3 As shown, as an optional implementation of this embodiment, the filtering and conveying mechanism includes a filtering drive mechanism 29, a driving roller 30, a driven roller 31 and an annular conveyor belt 32. The output end of the filtering drive mechanism 29 is connected to the driving roller 30. The driving roller 30 and the driven roller 31 are connected through an annular conveyor belt 32. The annular conveyor belt 32 is obliquely arranged between the liquid storage tank 7 and the solid storage tank 8. The surface of the annular conveyor belt 32 is uniformly distributed with filtering holes 33. The filtering drive mechanism 29 includes a filtering drive motor. The output shaft of the filtering drive motor is connected to the driving roller 30. The filtering drive motor drives the annular conveyor belt 32 to circulate, thereby transporting the filtered solid waste to the solid storage tank 8.

[0041] In order to facilitate the transportation of solid waste, a plurality of material-bearing baffles 34 are provided at intervals on the surface of the annular conveyor belt 32 , and a conveying trough is formed between two adjacent material-bearing baffles 34 . The solid waste is transported to the solid storage tank 8 in the conveying trough, and the waste liquid enters the liquid storage tank 7 through the filter holes 33 .

[0042] In the description of the present invention, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, and may be fixedly connected, detachably connected, or integrated; may be mechanically connected or electrically connected; may be directly connected or indirectly connected through an intermediate medium, may be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood. In addition, the specific features, structures, etc. described in the embodiments are included in at least one embodiment. Under the condition that there is no contradiction, those skilled in the art may combine the features of different embodiments. The protection scope of the present invention is not limited to the above-mentioned specific embodiments. According to the basic technical concept of the present invention, the embodiments that can be associated with by ordinary technicians in this field without creative work all belong to the protection scope of the present invention.

Claims

1. A medical waste crushing and processing device, comprising a crushing box (1), characterized in that: The crushing box (1) is provided with a feed hopper (2), a primary crushing mechanism (3) is provided in the feed hopper (2), a feed channel (4) connected to the feed hopper (2) is provided in the crushing box (1), a secondary crushing mechanism (5) is provided in the feed channel (4); a cavity connected to the feed channel (4) is provided in the crushing box (1), a longitudinal partition plate (6) is provided in the cavity, a liquid storage tank (7) and a solid storage tank (8) are provided on both sides of the longitudinal partition plate (6), the liquid storage tank (7) is located below the feed channel (4), and the liquid storage tank (8) is provided in the feed channel (4). A filtering and conveying mechanism is obliquely provided between the trough (7) and the feed channel (4), the high end of the filtering and conveying mechanism being located at the top of the solid storage trough (8), and the low end of the filtering and conveying mechanism being located at the top of the liquid storage trough (7), the filtering and conveying mechanism being used to filter and convey the waste conveyed by the feed channel (4), so as to convey the filtered solid waste to the solid storage trough (8), and the filtered waste liquid falling into the liquid storage trough (7); a disinfectant spraying mechanism (9) is provided at the top of the cavity, and the disinfectant spraying mechanism (9) is used to spray disinfectant onto the waste on the filtering and conveying mechanism; There is a gap between the lower end of the filtering and conveying mechanism and the inner wall of the cavity, and an elastic baffle is provided in the gap, and the elastic baffle is used to prevent solid waste in the waste from falling into the liquid storage tank (7) through the gap; the elastic baffle comprises an inclined plate body (27) and a spring (28), one end of the inclined plate body (27) is rotatably connected to the inner wall of the cavity, and the other end of the inclined plate body (27) is in active contact with the filtering and conveying mechanism, and the two ends of the spring (28) are respectively connected to the inclined plate body (27) and the inner wall of the cavity; The filtering and conveying mechanism comprises a filtering driving mechanism (29), a driving roller (30), a driven roller (31) and an annular conveyor belt (32); the output end of the filtering driving mechanism (29) is connected to the driving roller (30); the driving roller (30) and the driven roller (31) are connected via an annular conveyor belt (32); the annular conveyor belt (32) is obliquely arranged between the liquid storage tank (7) and the solid storage tank (8); the surface of the annular conveyor belt (32) is uniformly provided with filtering holes (33); a plurality of material receiving baffles (34) are arranged at intervals on the surface of the annular conveyor belt (32); a conveying trough is formed between two adjacent material receiving baffles (34); solid waste is transported in the conveying trough to the solid storage tank (8), and waste liquid enters the liquid storage tank (7) through the filtering holes (33); The solid storage tank (8) is provided with a three-stage crushing mechanism (10) and a screen drum (11); a solid discharge port (12) is provided at the bottom of the solid storage tank (8); the screen drum (11) is arranged below the three-stage crushing mechanism (10); an open end is provided at the top of the screen drum (11); and a four-stage crushing mechanism (13) is provided inside the screen drum (11); The three-stage crushing mechanism (10) comprises a rotating grinding disc (14) and a fixed grinding disc (15) which match each other, the rotating grinding disc (14) being connected to a three-stage driving mechanism, the rotating grinding disc (14) being arranged on the inner side of the fixed grinding disc (15), a grinding channel being arranged between the rotating grinding disc (14) and the fixed grinding disc (15), the size of the grinding channel gradually decreasing from top to bottom, and the bottom of the grinding channel being connected to the open end of the screen drum (11); A solid guide plate (19) is provided on the top of the solid storage tank (8), and the solid guide plate (19) is used to guide the solid waste of the waste into the grinding channel; a liquid guide plate (20) is provided on the top of the longitudinal partition plate (6), and the liquid guide plate (20) is used to guide the waste liquid of the waste into the liquid storage tank (7).

2. The medical waste crushing and processing device according to claim 1, characterized in that: The three-stage driving mechanism comprises a three-stage driving motor (16), the three-stage driving motor (16) is connected to a rotating shaft (17), one end of the rotating shaft (17) passes through the screen drum (11) and is connected to the rotating grinding disc (14); the four-stage crushing mechanism (13) comprises a plurality of four-stage crushing blades (18), the four-stage crushing blades (18) are connected to the rotating shaft (17).

3. The medical waste crushing and processing device according to claim 1, characterized in that: The secondary crushing mechanism (5) comprises two knife shafts (21) arranged opposite to each other, a secondary driving mechanism is arranged between the two knife shafts (21), a plurality of secondary blades (22) are arranged at intervals on the two knife shafts (21), the secondary blades (22) of the two knife shafts (21) are arranged in a one-to-one correspondence, and the blade regions of a pair of secondary blades (22) match each other; the blade regions of the secondary blades (22) are provided with inclined surfaces, and the inclined surfaces of the blade regions of the pair of secondary blades (22) are in opposite directions and interlock with each other.

4. The medical waste crushing and processing device according to claim 3, characterized in that: The secondary drive mechanism comprises a secondary drive motor (23), a driving gear (24), a first driven gear (25) and a second driven gear (26); the output end of the secondary drive motor (23) is connected to the driving gear (24); the driving gear (24) is meshed with the first driven gear (25); the first driven gear (25) is meshed with the second driven gear (26); and the first driven gear (25) and the second driven gear (26) are respectively arranged on the two knife shafts (21).

5. The medical waste crushing and processing device according to claim 1, characterized in that: The primary crushing mechanism (3) comprises a primary driving mechanism and a primary crushing blade, and the output end of the primary driving mechanism is connected to the primary crushing blade.

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