Medical waste disinfection device

Abstract

A medical waste disinfection device comprises a first screw, the first screw comprises a first barrel, a first rotating shaft and first blades, the first rotating shaft is arranged in the first barrel, the first end of the first rotating shaft is located on one side of the first end of the first barrel, and the second end of the first rotating shaft is located on one side of the second end of the first barrel; the first rotating shaft is rotatably arranged relative to the first cylinder body, the first blades are arranged on the outer ring wall of the first rotating shaft, and the first blades are arranged between the first cylinder body and the first rotating shaft, so that medical waste in the first cylinder body is conveyed from the first end of the first cylinder body to the second end of the first cylinder body; through the design that the second end of the first rotating shaft does not make contact with the second end of the first barrel and the second end of the first rotating shaft does not make contact with the second end of the first barrel, the portion, at the discharging position of the first barrel, of the medical waste is cut off, and the problem that when discharged, the medical waste is wound around the first rotating shaft and blocked is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical waste treatment, in particular to a medical waste disinfection device. Background Art

[0002] Medical waste microwave disinfection equipment is a device that uses microwave radiation and saturated steam for synergistic disinfection, using the heat of steam, the thermal effect of microwaves and the biological effect of microwaves to kill bacteria, especially the biological sterilization effect of microwaves. The Chinese invention patent with application number 2017100460901 discloses a medical waste treatment system, including a feeding system, a crushing device, a microwave disinfection system, a negative pressure chamber, an ozone disinfection system, a steam generation system and a waste gas treatment system. The present invention uses microwaves and steam to disinfect medical waste once, and then uses ozone to disinfect medical waste twice, effectively avoiding the harm of pathogens in medical waste; the waste gas generated during the disinfection process is collected and concentrated through the negative pressure chamber, and then further filtered and removed through the waste gas treatment system, effectively avoiding waste gas pollution of the air, and achieving full harmless disposal.

[0003] In actual use of the medical waste treatment system, the second screw conveyor in the ozone disinfection system is often blocked due to the entanglement of strips in the medical waste, making it difficult to discharge the medical waste. For ease of understanding, the second screw conveyor is described in the same way as in this application. Figure 1 In the prior art, both ends of the first rotating shaft are rotatably connected to the first cylinder, and the discharge port needs to be arranged on the annular wall of the first cylinder and close to the end of the first cylinder, and no first blade is arranged on the first rotating shaft at the discharge port. In this way, when the medical waste is discharged from the discharge port, the strips in the medical waste are easily entangled on the first rotating shaft at the discharge port, causing the discharge port to be blocked. Summary of the invention

[0004] In view of this, in view of the above-mentioned shortcomings, it is necessary to propose a medical waste disinfection device.

[0005] A medical waste disinfection device includes a first spiral, which includes a first cylinder, a first rotating shaft, and a first blade. The first rotating shaft is built in the first cylinder, the first end of the first rotating shaft is located on one side of the first end of the first cylinder, the second end of the first rotating shaft is located on one side of the second end of the first cylinder, the first rotating shaft is rotatably arranged relative to the first cylinder, the first blade is arranged on the outer ring wall of the first rotating shaft, the first blade is arranged between the first cylinder and the first rotating shaft to transport the medical waste in the first cylinder from the first end of the first cylinder to the second end of the first cylinder, and the second end of the first rotating shaft does not contact the second end of the first cylinder.

[0006] Preferably, the first blade is a spiral plate wound around the first rotating shaft along the axial direction of the first rotating shaft, and the first blade is not in contact with the first cylinder.

[0007] Preferably, the first rotating shaft is coaxial with the first cylinder, and the first end of the first rotating shaft contacts the first end of the first cylinder.

[0008] Preferably, the first spiral includes a first flange, a first feed port is provided on the annular wall of the first end of the first cylinder, a first discharge port is provided on the annular wall of the second end of the first cylinder, the first discharge port is provided between the end face of the second end of the first rotating shaft and the end face of the second end of the first cylinder, and the first feed port is installed with a first flange.

[0009] Preferably, the medical waste disinfection device comprises a second spiral, the second spiral comprises a second cylinder, a second discharge port is provided at the second end of the second cylinder, a second flange is installed at the second discharge port, and the first flange is connected to the second flange by bolts.

[0010] Preferably, the first flange and the second flange are arranged horizontally.

[0011] Preferably, the medical waste disinfection device comprises a silo and a crusher, a second feed port is provided at the first end of the second cylinder, the outlet of the silo is connected to the inlet of the crusher, and the outlet of the crusher is connected to the second feed port.

[0012] Preferably, the medical waste disinfection device comprises a plurality of microwave generators, which are evenly distributed in the second cylinder, and the output ends of the microwave generators are connected to the inner cavity of the second cylinder.

[0013] Preferably, the medical waste disinfection device comprises a steam generator, and the steam generator is connected to the second cylinder.

[0014] Preferably, the medical waste disinfection device comprises a water storage tank and a reverse osmosis water purifier, the water storage tank is connected to the reverse osmosis water purifier, and the reverse osmosis water purifier is connected to the steam generator.

[0015] Beneficial effect: The second end of the first rotating shaft is designed not to contact the second end of the first cylinder, and the first rotating shaft where the medical waste is discharged from the first cylinder is cut off, thereby avoiding the problem of blockage caused by the medical waste being entangled on the first rotating shaft when being discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial view of the second screw conveying device in the existing design.

[0017] Figure 2 A partial view of the first spiral.

[0018] Figure 3 This is a structural diagram of a medical waste disinfection device.

[0019] Figure 4 A partial view of a medical waste disinfection device.

[0020] In the figure: a first spiral 10, a first cylinder 11, a first rotating shaft 12, a first blade 13, a first flange 14, a second spiral 20, a second cylinder 21, a second flange 22, a silo 30, a crusher 40, a microwave generator 50, a steam generator 60, a water storage tank 70, and a reverse osmosis water purifier 80. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] See also Figure 2 The embodiment of the utility model provides a medical waste disinfection device, including a first spiral 10, the first spiral 10 includes a first barrel 11, a first rotating shaft 12, and a first blade 13, the first rotating shaft 12 is built in the first barrel 11, the first end of the first rotating shaft 12 is located on one side of the first end of the first barrel 11, the second end of the first rotating shaft 12 is located on one side of the second end of the first barrel 11, the first rotating shaft 12 is rotatably arranged relative to the first barrel 11, the first blade 13 is arranged on the outer ring wall of the first rotating shaft 12, the first blade 13 is arranged between the first barrel 11 and the first rotating shaft 12, so as to transport the medical waste in the first barrel 11 from the first end of the first barrel 11 to the second end of the first barrel 11, and the second end of the first rotating shaft 12 does not contact the second end of the first barrel 11.

[0023] Exemplarily, the inner cavity of the first cylinder 11 is preferably cylindrical.

[0024] Beneficial effect: The second end of the first rotating shaft 12 is designed not to contact the second end of the first cylinder 11, and the first rotating shaft 12 where the medical waste is discharged from the first cylinder 11 is cut off, thereby avoiding the problem of blockage caused by the medical waste being entangled on the first rotating shaft 12 when being discharged.

[0025] See also Figure 2 Furthermore, the first blade 13 is a spiral plate wound around the first rotating shaft 12 along the axial direction of the first rotating shaft 12 , and the first blade 13 does not contact the first cylinder 11 .

[0026] See also Figure 2Further, the first rotating shaft 12 is coaxial with the first cylinder 11 , and a first end of the first rotating shaft 12 contacts a first end of the first cylinder 11 .

[0027] See also Figure 4 Further, the first spiral 10 includes a first flange 14, a first feed port is provided on the annular wall of the first end of the first cylinder 11, a first discharge port is provided on the annular wall of the second end of the first cylinder 11, the first discharge port is provided between the end face of the second end of the first rotating shaft 12 and the end face of the second end of the first cylinder 11, and the first flange 14 is installed on the first feed port.

[0028] See also Figure 2 and Figure 4 Further, the medical waste disinfection device includes a second spiral 20, the second spiral 20 includes a second cylinder 21, a second discharge port is provided at the second end of the second cylinder 21, a second flange 22 is installed at the second discharge port, and the first flange 14 is connected to the second flange 22 by bolts.

[0029] See also Figure 4 Further, the first flange 14 and the second flange 22 are arranged horizontally.

[0030] Exemplarily, the first end of the first rotating shaft 12 is rotatably connected to the first end of the first barrel 11, and the first screw 10 includes a first motor for driving the first rotating shaft 12 to rotate relative to the first barrel 11. The first motor is placed at the first end of the first barrel 11 so that the center of gravity of the first screw 10 is located directly below the second discharge port. The second screw 20 includes a second rotating shaft, a second blade, and a second motor. The second screw 20 and the first screw 10 may have the same structure.

[0031] If the center of gravity of the first spiral 10 deviates, the first spiral 10 tends to rotate relative to the second spiral 20, and one side of the second flange 22 is subjected to the pulling force of the first flange 14, and the second flange 22 and one side of the first flange 14 are prone to cracking. The first motor serves as both the power source of the first spiral 10 and the counterweight of the first spiral 10, ensuring that the center of gravity of the first spiral 10 is located directly below the second discharge port, thereby reducing the torque of the first spiral 10 relative to the second spiral 20. Moreover, in the process of being pushed by the first blade 13, the medical waste reacts to the first blade 13 and acts on the first rotating shaft 12. If the second end of the first rotating shaft 12 is connected to the second end of the first cylinder 11, the above-mentioned force will act on the first cylinder 11, increasing the torque of the first spiral 10 relative to the second spiral 20. However, the design of the second end of the first rotating shaft 12 of the present application not contacting the second end of the first cylinder 11 will not act on the first cylinder 11, thereby avoiding the above-mentioned problem.

[0032] The first flange 14 and the second flange 22 are arranged horizontally, and the pulling force of the first spiral 10 on the first flange 14 is consistent with the axial direction of the bolts of the first flange 14, and the bolts at each connection point of the first flange 14 are evenly stressed and not easily damaged.

[0033] See also Figure 3 Further, the medical waste disinfection device includes a silo 30 and a crusher 40. A second feed port is provided at the first end of the second cylinder 21. The outlet of the silo 30 is connected to the inlet of the crusher 40, and the outlet of the crusher 40 is connected to the second feed port.

[0034] See also Figure 3 Furthermore, the medical waste disinfection device includes a plurality of microwave generators 50 , which are evenly distributed in the second cylinder 21 , and the output ends of the microwave generators 50 are connected to the inner cavity of the second cylinder 21 .

[0035] Exemplarily, the time for disinfecting medical waste in the second cylinder 21 is 40-50 minutes, and the maximum processing capacity is 625 kg / h. The rotation speed of the second spiral 20 is limited, otherwise the disinfection is not thorough. The length of the second cylinder 21 is increased from 9 m to 15 m, and the number of microwave generators 50 is increased from 12 to 20. The rotation speed of the second spiral 20 can be increased, and the disinfection rate can be accelerated. The crushing efficiency of the interlocked crusher 40 will also be accelerated. The disposal efficiency of medical waste disinfection can be improved without changing the processing time, and the processing capacity can be increased to more than 900 kg / h.

[0036] Exemplarily, the coolant of the microwave generator 50 is replaced by an antifreeze liquid at -45°C with better heat dissipation, and the microwave generator 50 and the water tank are connected by a transparent PVC hose.

[0037] See also Figure 3 Further, the medical waste disinfection device includes a steam generator 60, and the steam generator 60 is connected to the second cylinder 21. The steam generator 60 generates steam, which has a cooling effect on the microwave generator 50.

[0038] See also Figure 3 Furthermore, the medical waste disinfection device includes a water storage tank 70 and a reverse osmosis water purifier 80 , the water storage tank 70 is connected to the reverse osmosis water purifier 80 , and the reverse osmosis water purifier 80 is connected to the steam generator 60 .

[0039] The medical waste is first sent to the silo 30, crushed by the crusher 40, and then enters the second spiral 20. While being transported in the second spiral 20, it is sterilized by the microwaves generated by the microwave generator 50 and the steam generated by the steam generator 60. The steam also cools the microwave generator 50. Then it enters the first spiral 10 and is lifted to a predetermined height. Finally, it is discharged from the first discharge port to the transfer vehicle.

[0040] The modules or units in the device of the embodiment of the utility model can be combined, divided and deleted according to actual needs.

[0041] The above disclosure is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A medical waste disinfection device, characterized in that: The invention comprises a first spiral, wherein the first spiral comprises a first cylinder, a first rotating shaft, and a first blade, wherein the first rotating shaft is built in the first cylinder, wherein the first end of the first rotating shaft is located on one side of the first end of the first cylinder, wherein the second end of the first rotating shaft is located on one side of the second end of the first cylinder, wherein the first rotating shaft is rotatably arranged relative to the first cylinder, wherein the first blade is arranged on the outer annular wall of the first rotating shaft, wherein the first blade is arranged between the first cylinder and the first rotating shaft so as to transport the medical waste in the first cylinder from the first end of the first cylinder to the second end of the first cylinder, wherein the second end of the first rotating shaft does not contact the second end of the first cylinder.

2. The medical waste disinfection device according to claim 1, characterized in that: The first blade is a spiral plate wound around the first rotating shaft along the axial direction of the first rotating shaft, and the first blade is not in contact with the first cylinder.

3. The medical waste disinfection device according to claim 1, characterized in that: The first rotating shaft is coaxial with the first cylinder, and a first end of the first rotating shaft contacts the first end of the first cylinder.

4. The medical waste disinfection device according to claim 1, characterized in that: The first spiral includes a first flange, a first feed port is provided on the annular wall of the first end of the first cylinder, and a first discharge port is provided on the annular wall of the second end of the first cylinder. The first discharge port is provided between the end face of the second end of the first rotating shaft and the end face of the second end of the first cylinder, and the first feed port is installed with a first flange.

5. The medical waste disinfection device according to claim 4, characterized in that: The medical waste disinfection device comprises a second spiral, the second spiral comprises a second cylinder, a second discharge port is arranged at the second end of the second cylinder, a second flange is installed at the second discharge port, and the first flange is connected to the second flange by bolts.

6. The medical waste disinfection device according to claim 5, characterized in that: The first flange and the second flange are arranged horizontally.

7. The medical waste disinfection device according to claim 5, characterized in that: The medical waste disinfection device comprises a silo and a crusher. A second feed port is provided at the first end of the second cylinder. The outlet of the silo is connected to the inlet of the crusher, and the outlet of the crusher is connected to the second feed port.

8. The medical waste disinfection device according to claim 5, characterized in that: The medical waste disinfection device comprises a plurality of microwave generators, which are evenly distributed in the second cylinder, and the output ends of the microwave generators are communicated with the inner cavity of the second cylinder.

9. The medical waste disinfection device according to claim 5, characterized in that: The medical waste disinfection device comprises a steam generator, and the steam generator is connected to the second cylinder.

10. The medical waste disinfection device according to claim 9, characterized in that: The medical waste disinfection device comprises a water storage tank and a reverse osmosis water purifier. The water storage tank is connected to the reverse osmosis water purifier, and the reverse osmosis water purifier is connected to a steam generator.

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