High-temperature steam sterilization medical waste discharge device

Abstract

The utility model discloses a high temperature steam sterilization medical waste discharge device relates to medical waste treatment technical field, including sterilization room and rubbing crusher, the connecting pipe is connected between sterilization room and rubbing crusher, be equipped with the feeding cover on the rubbing crusher, install the sealing cover on the feeding cover, be connected with two primary rubbing roller and two fine rubbing roller through drive assembly on the rubbing crusher, install stirring assembly on the sterilization room, install vacuum component on the sterilization room, install the drain pipe on the lower end of sterilization room, install magnetic force drain valve on the drain pipe, install the discharge pipe on the sterilization room, the utility model discloses set up the secondary rubbing structure of primary rubbing roller and fine rubbing roller, can before the medical waste into the sterilization room to the long strip, fibrous material carries out the pre -crushing, and the probability of material winding stirring assembly in subsequent stirring process is reduced greatly, and the failure rate of equipment is reduced because of jam.

Description

Technical Field

[0001] This utility model relates to the field of medical waste treatment technology, specifically a high-temperature steam sterilization medical waste discharge device. Background Technology

[0002] With the rapid development of the medical industry, the amount of medical waste generated is increasing year by year. Infectious and pathological waste, if not properly handled, can easily lead to serious problems such as the spread of pathogens and environmental pollution. Therefore, harmlessness, volume reduction, and airtight treatment have become the core requirements for medical waste disposal. High-temperature steam sterilization technology has become the mainstream pretreatment technology for medical waste due to its advantages such as thorough sterilization (killing spores, viruses, and other stubborn microorganisms), no chemical residues, and wide applicability. The high-temperature steam sterilization medical waste discharge device, as a key component of this technology, plays a crucial role in safely transferring sterilized materials to downstream volume reduction and disposal stages. Its operational stability directly determines the efficiency and safety of the entire treatment system. Referring to the existing Chinese patent with publication number CN219307495U, a high-temperature steam sterilization medical waste discharge device is disclosed, which includes a sterilization chamber and a screw conveyor. The discharge port of the sterilization chamber is connected to the inlet of the screw conveyor through a discharge channel. A sealing component is provided at the connection position between the discharge channel and the sterilization chamber, and the sealing component cooperates with the discharge port.

[0003] The aforementioned high-temperature steam sterilization medical waste discharge device has the following advantages: the discharge channel is a fully enclosed structure, which ensures that all medical waste discharged from the sterilization chamber enters the screw conveyor, preventing splashing and maintaining a clean environment at the discharge port, eliminating the need for floor cleaning after use. Simultaneously, the sealing components control the opening and closing of the discharge channel, ensuring the normal operation of the high-temperature steam sterilization process within the sterilization chamber. However, this high-temperature steam sterilization medical waste discharge device still has some drawbacks. For example, when waste enters the sterilization chamber through the inlet, the medical waste may contain long, fibrous, or sticky substances. These substances can easily become entangled in the agitator during mixing, causing jamming and resulting in a high equipment failure rate. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature steam sterilization medical waste discharge device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A high-temperature steam sterilization medical waste discharge device includes: The system includes a disinfection chamber and a grinding chamber, which are connected by a connecting pipe. The grinding chamber is equipped with a feeding hood and a sealing cover. The grinding chamber is connected to two primary grinding rollers and two fine grinding rollers via a drive assembly. The disinfection chamber is equipped with a stirring assembly and a vacuum assembly. A drain pipe is installed at the lower end of the disinfection chamber, and a magnetic drain valve is installed on the drain pipe. A discharge pipe is installed on the disinfection chamber, and an electrically controlled valve is installed on the discharge pipe.

[0006] Preferably, the drive assembly includes a servo motor, a gear disk, two pulleys, a transmission belt, and a rotating rod. The primary crushing roller and the fine crushing roller are rotatably connected inside the crushing chamber. The gear disk is connected to the primary crushing roller and the fine crushing roller via the rotating rod. Adjacent gear disks mesh with each other. The two pulleys are connected to two of the gear disks. The servo motor is mounted on the crushing chamber, and the output end of the servo motor is connected to one of the pulleys. The two pulleys are connected by a transmission belt.

[0007] Preferably, the stirring assembly includes a drive motor and a stirring frame. The stirring frame is rotatably connected to the disinfection chamber via a combination shaft seal consisting of a stuffing box and a lip seal. The drive motor is mounted on the disinfection chamber, and its output end is connected to the extension end of the stirring frame that passes through the disinfection chamber.

[0008] Preferably, the vacuum assembly includes a vacuum pump, a vacuum tube, and a vacuum control valve. The vacuum pump is installed on the sterilization chamber, and the two ends of the vacuum tube are connected to the vacuum pump and the sterilization chamber, respectively. The vacuum control valve is installed on the vacuum tube.

[0009] Preferably, the disinfection chamber is equipped with an exhaust pipe, and the exhaust pipe is equipped with a pressure regulating valve.

[0010] Preferably, the disinfection chamber is equipped with a steam inlet pipe, and a steam control valve is installed on the steam inlet pipe.

[0011] Preferably, the disinfection chamber is equipped with a controller, which is electrically connected to a magnetic drain valve, an electric control valve, a servo motor, a drive motor, a vacuum pump, a vacuum control valve, a steam control valve, and a pressure regulating valve.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention employs a two-stage crushing structure with primary and fine crushing rollers, pre-crushing long, fibrous materials before they enter the sterilization chamber. This significantly reduces the probability of material entanglement in the mixing components during subsequent stirring, lowering the equipment failure rate due to jamming. Furthermore, the crushed material has a larger contact area with the high-temperature steam, improving sterilization efficiency. The crushing chamber and sterilization chamber are sealed together via a connecting pipe, and with the sealing cover on the feed hood and the electrically controlled valve on the discharge pipe, a fully enclosed processing flow is formed. This prevents leakage of high-temperature steam during sterilization, ensuring sterilization effectiveness, and also prevents the spread of pathogens during the transfer of medical waste, enhancing the biosafety of the device. Attached Figure Description Figure 1 This is a schematic diagram of the structure of a high-temperature steam sterilization medical waste discharge device in an embodiment of this application; Figure 2 This is a cross-sectional view of a high-temperature steam sterilization medical waste discharge device according to an embodiment of this application; Figure 3 This is a schematic diagram of the drive component structure of a high-temperature steam sterilization medical waste discharge device according to an embodiment of this application; Figure 4 This is a schematic diagram of the stirring component structure of a high-temperature steam sterilization medical waste discharge device according to an embodiment of this application.

[0013] In the diagram: 1. Disinfection chamber; 2. Grinding box; 3. Connecting pipe; 4. Feed hood; 5. Sealing cover; 6. Primary grinding roller; 7. Fine grinding roller; 8. Drain pipe; 9. Magnetic drain valve; 10. Discharge pipe; 11. Electrically controlled valve; 12. Servo motor; 13. Gear disk; 14. Pulley; 15. Drive belt; 16. Rotating rod; 17. Drive motor; 18. Stirring rack; 19. Vacuum pump; 20. Vacuum tube; 21. Vacuum control valve; 22. Exhaust pipe; 23. Pressure regulating valve; 24. Steam inlet pipe; 25. Steam control valve; 26. Controller. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-4 This utility model provides a technical solution: A high-temperature steam sterilization medical waste discharge device includes: The system includes a disinfection chamber 1 and a grinding chamber 2, which are connected by a connecting pipe 3. The grinding chamber 2 is equipped with a feeding hood 4 and a sealing cover 5. The grinding chamber 2 is connected to two primary grinding rollers 6 and two fine grinding rollers 7 via a drive assembly. The drive assembly includes a servo motor 12, a gear disk 13, two pulleys 14, a transmission belt 15, and a rotating rod 16. The primary grinding rollers 6 and fine grinding rollers 7 are rotatably connected inside the grinding chamber 2. The gear disk 13 is connected to the primary grinding rollers 6 and fine grinding rollers 7 via the rotating rod 16. Adjacent gear disks 13 mesh with each other. The two pulleys 14 are connected to two of the gear disks 13. The servo motor 12 is mounted on the grinding chamber 2, and the output end of the servo motor 12 is connected to one of the pulleys 14. The two pulleys 14 are connected by a transmission belt 15. Open the sealing cap 5 to put in medical waste and close the cap. Set the relevant parameters for crushing and sterilization through the controller 26. No need for repeated manual adjustments, which initially reduces the complexity of operation.

[0016] Upon entering the crushing stage, the controller 26 activates the servo motor 12. The motor drives another pulley 14 to rotate synchronously via belt drive. This rotation, through the meshing of the rotating rod 16 and gear disc 13, drives the primary crushing roller 6 and the fine crushing roller 7 to rotate synchronously in opposite directions. The belt drive isolates the impact of motor vibration on the crushing rollers, ensuring crushing stability. The gear meshing precisely controls the direction and speed of the two rollers, ensuring that the primary crushing roller 6 shears and crushes large, long, strip-shaped waste materials, while the fine crushing roller 7 further grinds fibrous and strip-shaped materials. This two-stage crushing design refines easily entangled materials from the source, avoiding jamming problems during subsequent mixing. It also adapts to the crushing needs of different waste forms, processing various materials without the need to replace components.

[0017] A stirring assembly is installed on the disinfection chamber 1. The stirring assembly includes a drive motor 17 and a stirring frame 18. The stirring frame 18 is rotatably connected to the disinfection chamber 1 through a combination shaft seal with a stuffing box and a lip seal. The drive motor 17 is installed on the disinfection chamber 1, and the output end of the drive motor 17 is connected to the extension end of the stirring frame 18 that passes through the disinfection chamber 1. A vacuum assembly is installed on the disinfection chamber 1. The vacuum assembly includes a vacuum pump 19, a vacuum tube 20 and a vacuum control valve 21. The vacuum pump 19 is installed on the disinfection chamber 1. The two ends of the vacuum tube 20 are connected to the vacuum pump 19 and the disinfection chamber 1 respectively. The vacuum control valve 21 is installed on the vacuum tube 20. The pulverized material enters the sterilization chamber 1 through the connecting pipe 3, officially initiating the sterilization stage: the controller 26 first activates the vacuum pump 19 and vacuum control valve 21 to evacuate the sterilization chamber 1, removing cold air and preventing the formation of "sterilization dead zones"; then, high-temperature steam is introduced. When the chamber reaches the set sterilization conditions, the drive motor 17 rotates the stirring rack 18. The stirring rack 18 uses a combination of a stuffing box and a lip seal, which not only breaks up material buildup through rotation, ensuring each part of the material fully contacts the steam to guarantee thorough sterilization, but also prevents steam leakage from the shaft penetration. If the pressure exceeds the limit during the process, the pressure regulating valve 23 automatically releases pressure, maintaining stable sterilization parameters through dynamic control. This eliminates the need for manual monitoring of pressure changes, improving sterilization effectiveness and reducing operational risks.

[0018] A drain pipe 8 is installed at the lower end of the disinfection chamber 1. A magnetic drain valve 9 is installed on the drain pipe 8. A discharge pipe 10 is installed on the disinfection chamber 1. An electric control valve 11 is installed on the discharge pipe 10. An exhaust pipe 22 is installed on the disinfection chamber 1. A pressure regulating valve 23 is installed on the exhaust pipe 22. A steam inlet pipe 24 is installed on the disinfection chamber 1. A steam control valve 25 is installed on the steam inlet pipe 24.

[0019] After sterilization, the material discharge and drainage stage begins. Controller 26 first closes the steam control valve 25 and opens the pressure regulating valve 23 to reduce the pressure in sterilization chamber 1 to atmospheric pressure. Then, the stirring rack 18 is started to rotate at low speed to prevent material accumulation. At the same time, the electric control valve 11 is opened to allow the material to be discharged through the discharge pipe 10. If there is condensate at the bottom, the magnetic drain valve 9 is automatically opened to drain it. The entire material discharge process is coordinated with the stirring and drainage to avoid material residue or water accumulation affecting the next use. Furthermore, no manual intervention is required for component switching throughout the process, significantly reducing the number of operation steps.

[0020] In the above embodiment, a controller 26 is installed on the disinfection chamber 1. The controller 26 is electrically connected to the magnetic drain valve 9, the electric control valve 11, the servo motor 12, the drive motor 17, the vacuum pump 19, the vacuum control valve 21, the steam control valve 25, and the pressure regulating valve 23.

[0021] It should be noted that the specific models and specifications of the controller 26, magnetic drain valve 9, electric control valve 11, servo motor 12, drive motor 17, vacuum pump 19, vacuum control valve 21, steam control valve 25 and pressure regulating valve 23 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature steam sterilization medical waste discharge device, characterized in that, include: The disinfection chamber (1) and the crushing box (2) are connected by a connecting pipe (3). The crushing box (2) is provided with a feeding hood (4) and a sealing cover (5) is installed on the feeding hood (4). The crushing box (2) is connected to two primary crushing rollers (6) and two fine crushing rollers (7) by a drive assembly. A stirring assembly is installed on the disinfection chamber (1), a vacuum assembly is installed on the disinfection chamber (1), a drain pipe (8) is installed at the lower end of the disinfection chamber (1), a magnetic drain valve (9) is installed on the drain pipe (8), a discharge pipe (10) is installed on the disinfection chamber (1), and an electric control valve (11) is installed on the discharge pipe (10).

2. The high-temperature steam sterilization medical waste discharge device according to claim 1, characterized in that: The drive assembly includes a servo motor (12), a gear disk (13), two pulleys (14), a transmission belt (15), and a rotating rod (16). The primary crushing roller (6) and the fine crushing roller (7) are rotatably connected inside the crushing box (2). The gear disk (13) is connected to the primary crushing roller (6) and the fine crushing roller (7) through the rotating rod (16). Adjacent gear disks (13) mesh. The two pulleys (14) are connected to two of the gear disks (13). The servo motor (12) is mounted on the crushing box (2), and the output end of the servo motor (12) is connected to one of the pulleys (14). The two pulleys (14) are connected to each other through the transmission belt (15).

3. The high-temperature steam sterilization medical waste discharge device according to claim 2, characterized in that: The stirring assembly includes a drive motor (17) and a stirring frame (18). The stirring frame (18) is rotatably connected to the disinfection chamber (1) through a combination of a stuffing box and a lip seal. The drive motor (17) is installed on the disinfection chamber (1), and the output end of the drive motor (17) is connected to the extension end of the stirring frame (18) that passes through the disinfection chamber (1).

4. The high-temperature steam sterilization medical waste discharge device according to claim 3, characterized in that: The vacuum assembly includes a vacuum pump (19), a vacuum tube (20), and a vacuum control valve (21). The vacuum pump (19) is installed on the disinfection chamber (1). The vacuum tube (20) is connected to the vacuum pump (19) and the disinfection chamber (1) at both ends. The vacuum control valve (21) is installed on the vacuum tube (20).

5. The high-temperature steam sterilization medical waste discharge device according to claim 4, characterized in that: The disinfection chamber (1) is equipped with an exhaust pipe (22), and a pressure regulating valve (23) is installed on the exhaust pipe (22).

6. The high-temperature steam sterilization medical waste discharge device according to claim 5, characterized in that: The disinfection chamber (1) is equipped with a steam inlet pipe (24) and a steam control valve (25) is installed on the steam inlet pipe (24).

7. The high-temperature steam sterilization medical waste discharge device according to claim 6, characterized in that: The disinfection chamber (1) is equipped with a controller (26), which is electrically connected to a magnetic drain valve (9), an electric control valve (11), a servo motor (12), a drive motor (17), a vacuum pump (19), a vacuum control valve (21), a steam control valve (25), and a pressure regulating valve (23).

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