High-temperature steam sterilizing equipment for medical wastes

Abstract

The invention discloses medical waste high-temperature steam disinfection equipment which comprises a treatment box, a blanking opening formed in the top of the treatment box, outer housings fixedly welded to the two sides of the treatment box and a fixing frame fixedly welded to the inner wall of the treatment box, and a disinfection area is formed between the side wall of the treatment box and the inner walls of the outer housings; the interior of the treatment box is divided into a freezing area and a crushing area by a fixing frame, a fixing cylinder is arranged in the freezing area, liquid nitrogen spraying discs are fixed on the inner walls of the treatment box on the two sides of the freezing area, and a plurality of spraying heads for spraying liquid nitrogen are arranged on the sides, facing the fixing cylinder, of the liquid nitrogen spraying discs. According to the medical waste high-temperature steam sterilization equipment, the freezing area is arranged, liquid nitrogen can be sprayed out of the freezing area, after medical waste makes contact with the liquid nitrogen, the physical and chemical characteristics of the medical waste can be destroyed through the liquid nitrogen, the medical waste can be easily crushed into particles, and the subsequent steam sterilization effect can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a high-temperature steam disinfection device for medical waste. Background Art

[0002] Medical waste may contain a large number of pathogenic microorganisms and harmful chemicals. In order to avoid causing disease transmission or related public health problems, medical waste needs to be treated accordingly.

[0003] For example, the prior art (Announcement No. CN115228550B) discloses a spray-type medical waste disinfection treatment device, which is convenient for crushing hard bottles and cans by setting a disinfection device, a crushing device and a shredding device, and at the same time, the flexible bagged garbage is wound and cut so that the residual solution inside can flow out, which is convenient for full disinfection. At the same time, the disinfection device is driven to rotate and spray disinfection, which greatly increases the disinfection area and improves the disinfection efficiency. The device is easy to use, the disinfection is more complete and efficient, and the harm of the residue in the medical waste is reduced;

[0004] In the above technology, the medical waste is crushed and shredded by the crushing device and the shredding device, but the crushing roller cannot guarantee the crushing effect, especially for some flexible waste, such as rubber gloves, infusion bottles and infusion tubes, and the subsequent shredding device only cuts off the flexible medical waste wound on the winding column, so the waste processed by the crushing device and the shredding device is still large in volume;

[0005] Moreover, rubber gloves are usually turned over and taken off, or infusion tubes, whose outer and inner surfaces may contain a large number of pathogenic microorganisms. If they are not completely crushed, the subsequent spray disinfection will only kill the pathogenic microorganisms on the outer surface, while the inner surface cannot be treated. At the same time, the above-mentioned technology uses spray disinfection, and due to the large amount of garbage falling, the garbage is easily accumulated, resulting in the garbage accumulated inside not being able to contact the disinfectant well, and then being disinfected by the disinfectant, the disinfection effect is not good.

[0006] In summary, the current prior art still has defects and needs to be improved. Summary of the invention

[0007] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0008] Therefore, the object of the present invention is to provide a high-temperature steam sterilization device for medical waste, comprising a treatment box, a material drop opening opened at the top of the treatment box, an outer cover shell welded and fixed to both sides of the treatment box, and a fixed frame welded and fixed to the inner wall of the treatment box, a disinfection area is formed between the side wall of the treatment box and the inner wall of the outer cover shell, and the interior of the treatment box is divided into a freezing area and a crushing area by the fixed frame,

[0009] The freezing zone is provided with a fixed cylinder, and liquid nitrogen spray discs are fixed on the inner walls of the processing box on both sides of the freezing zone. The liquid nitrogen spray discs are provided with a plurality of nozzles for spraying liquid nitrogen on one side facing the fixed cylinder.

[0010] A set of transmission chains are sleeved on both side walls of the fixed cylinder, a fixed rod is welded and fixed on the chain plate of the transmission chain, and a plurality of evenly distributed conveying rods are welded and fixed on the fixed rod.

[0011] A plurality of evenly distributed partitions are welded and fixed on the inner frame wall of the fixed frame, guide blocks are arranged on both sides of the fixed frame, and two symmetrically distributed baffles are welded and fixed on the top surface of the partition.

[0012] A rectangular through groove is provided on the outer shell wall on one side of the disinfection area, a condensation plate is welded and fixed on the outer wall of the treatment box on one side of the disinfection area, a steam spray plate is welded and fixed in the rectangular through groove, and the steam spray plate is evenly provided with steam spray holes facing one side of the condensation plate.

[0013] An air knife is arranged at the bottom of the disinfection area, and the two outer cover shell walls are penetrated with second shunt pipes welded and fixed thereto, one end of the two second shunt pipes is connected to the air inlet pipe through a three-way solenoid valve, and the other end of the second shunt pipe is connected to the air knife.

[0014] The processing box walls on both sides of the crushing area are provided with extrusion blocks, and a movable plate is provided in the crushing area. The movable plate is elastically and movably connected to the extrusion block.

[0015] The processing box walls on both sides of the movable plate are provided with open grooves, and the open grooves are used to connect the crushing area and the disinfection area.

[0016] As the preferred technical solution:

[0017] A medical waste high-temperature steam disinfection device as described above, wherein the cross section of the fixed cylinder is a rectangular frame, the top and bottom ends of the fixed cylinder are both open, and the fixed cylinder is welded and fixed to the inner wall of the treatment box;

[0018] A group of fixing seats are welded and fixed to the top and bottom walls on both sides of the fixing cylinder, an active rod is movably connected to the fixing seat bearing on the top wall of the fixing cylinder, and a driven rod is movably connected to the fixing seat bearing on the bottom wall of the fixing cylinder, sprockets are fixed to the active rod and the driven rod by pins, and the sprockets are meshed with the transmission chain.

[0019] Through the above technical solution, the structural design of the fixed cylinder enables the transmission chain to drive the conveying rod to rotate continuously through the fixed rod, thereby driving the medical waste on the fixed frame to move upward and bring the waste into contact with liquid nitrogen again, thereby ensuring that the waste is fully frozen.

[0020] In the medical waste high-temperature steam disinfection equipment as described above, one end of the active rod passes through the back of the treatment box and is connected to the bearing of the treatment box wall. A group of side panels are welded and fixed to the back of the treatment box. A transmission rod is connected to the shaft of the side panel. Two symmetrically distributed main bevel gears are fixed by a pin on the transmission rod. The end of the transmission rod extending from the treatment box is fixed by a pin with a secondary bevel gear meshing with the main bevel gear.

[0021] Through the above technical solution, the two main bevel gears on the transmission rod are distributed and designed so that when the two main bevel gears drive the two active rods to rotate through the secondary bevel gears, the two active rods can rotate relative to each other, that is, one active rod rotates clockwise and the other active rod rotates counterclockwise, and then the two sets of transmission chains can drive the conveying rods to continuously convey medical waste garbage upward.

[0022] In the medical waste high-temperature steam disinfection equipment as described above, the diameter of the conveying rod is smaller than the distance between two adjacent partitions, and a ball groove is formed at one end of the conveying rod away from the fixed rod, and balls are arranged inside the ball groove.

[0023] Through the above technical solution, when the conveying rod contacts the movable plate, since the ball bearings are provided and the spherical ball bearings roll in the ball bearing grooves, the conveying rod is in indirect contact with the movable plate through the ball bearings and the sliding friction can be converted into rolling friction, thereby reducing friction and ensuring that the conveying rod can rotate unhindered.

[0024] In the above-mentioned high-temperature steam disinfection equipment for medical waste, the movable plate is in an inverted "V" shape, and the four side walls of the movable plate are seamlessly fitted with the inner wall of the treatment box.

[0025] A group of guide posts are welded to the top walls on both sides of the movable plate, and a hole slot for inserting the guide posts is opened on a side of the extrusion block opposite to the movable plate. The guide posts are welded to the bottom of the hole slot through a spring.

[0026] Through the above technical solution, the movable plate can move on the extrusion block through the guide column, so that the movable plate can continuously move back and forth vertically under the rotation and extrusion of the conveying rod.

[0027] In the medical waste high-temperature steam disinfection equipment as described above, the cross section of the guide block is a right triangle, the cross section of the extrusion block is an isosceles triangle, the inclined surfaces of the two guide blocks are opposite, and the lower inclined surface of the extrusion block is parallel to the surface of the movable plate;

[0028] The right-angle side of the material guide block and the bottom side of the extrusion block are both connected to the inner wall of the processing box by welding.

[0029] Through the above technical solution, the shape design of the guide block allows the garbage that falls into the two sides of the fixed frame to slide to the middle of the fixed frame through the guide block, thereby ensuring that the conveying rod can contact the garbage when moving;

[0030] The shape design of the extrusion block enables the movable plate to extrude and crush the garbage in coordination with the inclined surface of the extrusion block when the movable plate moves vertically up and down, and the structure is reasonable.

[0031] In the medical waste high-temperature steam disinfection equipment as described above, the liquid nitrogen spray plate is a hollow box structure, and the two side walls of the treatment box are penetrated by a first shunt pipe welded thereto, and the first shunt pipe is welded and connected to one side of the liquid nitrogen spray plate;

[0032] One end of the two first shunt pipes is connected with a liquid inlet pipe through a tee, and the liquid inlet pipe is used to introduce liquid nitrogen.

[0033] Through the above technical solution, the structural design of the liquid nitrogen spray disk allows the liquid nitrogen to be evenly distributed to each nozzle after entering the inside, and finally sprayed out from multiple nozzles at the same time, thereby increasing the liquid nitrogen spray range and ensuring the freezing treatment effect on the garbage.

[0034] In the medical waste high-temperature steam disinfection equipment as described above, an inclined guide plate is provided on one side of the opening slot, the guide plate is located in the disinfection area, and one side of the guide plate is fixedly bonded to the outer wall of the treatment box by a rubber strip.

[0035] Through the above technical solution, the garbage and waste crushed by the squeezing blocks and the movable plates can slide through the open grooves to the disinfection area, so that the garbage and waste can be subsequently disinfected by high-temperature steam.

[0036] In the medical waste high-temperature steam sterilization equipment as described above, a guide plate is welded on the outer shell wall on one side of the disinfection area, the guide plate is an isosceles trapezoidal structure, a notch for the condensation plate to penetrate is provided at the top of the guide plate, and a horizontal plate is welded on the inner wall of the guide plate.

[0037] The transverse plate, the inner wall of the guide plate and the outer wall of the outer cover shell form a water collecting chamber, and the guide plate wall on one side of the water collecting chamber is welded and connected to a drainage pipe, and one end of the drainage pipe extends out from the outer cover shell.

[0038] Through the above technical solution, one end of the condensation plate is located in the water collecting chamber, and then after the high-temperature steam kills the garbage and waste, the steam will be sprayed horizontally toward the condensation plate, so that the steam can condense into water droplets. When the water droplets on the condensation plate accumulate to a certain extent, under the action of gravity, the water droplets will slide down along the surface of the condensation plate and drip into the water collecting chamber through the recess, thereby realizing the recycling of water resources. When a certain amount of water is collected, the water can be discharged through the drain pipe for centralized treatment.

[0039] In the medical waste high-temperature steam disinfection equipment as described above, the condensation plate is made of aluminum, and a plurality of heat-conducting columns are formed on the side of the condensation plate away from the steam spray plate. The heat-conducting columns penetrate the outer cover shell and extend into the liquid nitrogen spray plate, and the heat-conducting columns are welded and fixed to the wall of the liquid nitrogen spray plate.

[0040] Through the above technical solution, steam is continuously sprayed onto the condensation plate. In order to ensure the condensation effect of the condensation plate, a plurality of heat-conducting columns are provided. The heat on the condensation plate will be transferred to the heat-conducting columns. Since the heat-conducting columns are located in the liquid nitrogen spray plate, the liquid nitrogen will take away the heat on the heat-conducting columns when flowing inside the liquid nitrogen spray plate.

[0041] Beneficial effects:

[0042] (1) A high-temperature steam disinfection device for medical waste of the present invention is provided with a freezing zone, in which liquid nitrogen can be sprayed. After medical waste comes into contact with liquid nitrogen, such as some infusion bottles, rubber gloves or disposable masks, which are mostly made of rubber, plastic or non-woven fabrics, their physical and chemical properties can be destroyed by liquid nitrogen, and these wastes can be easily broken into particles, which is beneficial to the subsequent disinfection effect.

[0043] (2) A high-temperature steam disinfection device for medical waste of the present invention is provided with a disinfection area. A steam spray plate is provided in the disinfection area. The steam spray plate can spray high-temperature steam to disinfect the waste garbage. An air knife is also provided. Since the crushed waste garbage is small in size and light in weight, the air knife can generate a high-pressure airflow to blow the garbage particles upwards. This can not only drive the garbage particles to contact with the steam multiple times, but also avoid the garbage from docking, ensuring that the steam and the garbage are in uniform contact, thereby achieving sufficient disinfection.

[0044] (3) The high-temperature steam disinfection equipment for medical waste of the present invention is also provided with a reciprocating feeding mechanism consisting of a transmission chain, a fixed rod and a conveying rod in the freezing zone, which can drive the garbage to rise and fall continuously, thereby providing a low-temperature treatment effect for the garbage. The garbage will become brittle after low-temperature treatment, so it can be easily broken, and then treated with liquid nitrogen, which also simplifies the equipment and does not require the provision of multiple crushing structures, which is conducive to popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which

[0046] Figure 1 It is an internal front view of the present invention;

[0047] Figure 2 It is an internal top view of the present invention;

[0048] Figure 3 is an external top view of the present invention;

[0049] Figure 4 is an internal side view of the present invention;

[0050] Figure 5 A three-dimensional diagram of the fixing frame of the present invention;

[0051] Figure 6 A three-dimensional diagram of the extrusion block and the movable plate of the present invention;

[0052] Figure 7 For the present invention Figure 1 Enlarged view of point A in the middle;

[0053] Figure 8 A top view of the outer cover shell and the air knife of the present invention;

[0054] Fig. 9 A three-dimensional diagram of a condensation plate and a guide plate of the present invention;

[0055] Fig.10 It is a cross-sectional view of the conveying rod of the present invention.

[0056] In the figure: 1, processing box; 2, outer cover shell; 3, disinfection area; 4, freezing area; 5, crushing area; 6, fixed cylinder; 7, fixed seat; 8, active rod; 9, transmission chain; 10, fixed rod; 11, conveying rod; 1101, ball groove; 1102, ball; 12, fixed frame; 13, partition; 14, baffle; 15, guide block; 16, extrusion block; 17, movable plate; 18, drop port; 19, opening slot; 20. Guide plate; 21. Hole groove; 22. Guide column; 23. Spring; 24. Rubber strip; 25. Condenser plate; 26. Heat-conducting column; 27. Liquid inlet pipe; 28. First shunt pipe; 29. ​​Liquid nitrogen spray plate; 30. Steam spray plate; 31. Guide plate; 32. Notch; 33. Horizontal plate; 34. Drain pipe; 35. Air knife; 36. Air inlet pipe; 37. Second shunt pipe; 38. Transmission rod; 39. Main bevel gear. DETAILED DESCRIPTION

[0057] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0058] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0059] like Figure 1 As shown, a high-temperature steam disinfection device for medical waste includes a treatment box 1, a feed port 18 opened at the top of the treatment box 1, an outer cover shell 2 welded and fixed to both sides of the treatment box 1, and a fixed frame 12 welded and fixed to the inner wall of the treatment box 1, a disinfection area 3 is formed between the side wall of the treatment box 1 and the inner wall of the outer cover shell 2, and the interior of the treatment box 1 is divided into a freezing area 4 and a crushing area 5 by the fixed frame 12.

[0060] During operation, the medical waste to be processed can be put into the processing box 1 through the drop port 18, and the medical waste will first fall into the freezing area 4. For example, waste made of rubber, plastic or non-woven fabrics such as infusion bottles, rubber gloves or disposable masks will become very brittle after freezing, thus losing its softness and can be easily broken. The frozen waste falls into the crushing area 5, and the frozen waste can be crushed into particles. The crushed waste falls into the disinfection area 3, and high-temperature steam can be sprayed in the disinfection area 3 to achieve the disinfection of the waste.

[0061] The bottom of the outer cover shell 2 is sealed and hingedly connected with a discharge plate. During operation, the discharge plate can be fixed so that the bottom of the outer cover shell 2 is closed. When the operation is completed, the discharge plate can be rotated open to facilitate the discharge of the disinfected garbage.

[0062] like Figure 1 , Figure 2 and Figure 3 As shown, in the present embodiment, a fixed cylinder 6 is provided in the freezing zone 4, and liquid nitrogen spray discs 29 are fixed on the inner walls of the processing box 1 on both sides of the freezing zone 4. The liquid nitrogen spray disc 29 is provided with a plurality of nozzles for spraying liquid nitrogen on the side facing the fixed cylinder 6. The liquid nitrogen spray disc 29 is a hollow box structure, and the walls on both sides of the processing box 1 are penetrated by first shunt pipes 28 welded to them. The first shunt pipe 28 is welded and connected to one side of the liquid nitrogen spray disc 29, and one end of the two first shunt pipes 28 is connected to a liquid inlet pipe 27 through a tee, and the liquid inlet pipe 27 is used to introduce liquid nitrogen.

[0063] The liquid inlet pipe 27 is used to dock with the liquid nitrogen tank, so that the liquid nitrogen in the liquid nitrogen tank can be diverted to the two first diversion pipes 28 through the liquid inlet pipe 27, and finally enter the liquid nitrogen spray plate 29 and sprayed out through the nozzle, so that the liquid nitrogen can cover the freezing area 4. In this way, the medical waste falling into the freezing area 4 can contact with the liquid nitrogen to complete the freezing treatment. During the freezing process, the low temperature of the liquid nitrogen can also perform preliminary sterilization on the medical waste.

[0064] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, a set of transmission chains 9 are sleeved on both side walls of the fixed cylinder 6, a fixed rod 10 is welded and fixed on the chain plate of the transmission chain 9, and a plurality of evenly distributed conveying rods 11 are welded and fixed on the fixed rod 10, the cross section of the fixed cylinder 6 is a rectangular frame, the top and bottom ends of the fixed cylinder 6 are open, and the fixed cylinder 6 is welded and fixed on the inner wall of the processing box 1;

[0065] A group of fixing seats 7 are welded and fixed to the top and bottom walls on both sides of the fixing cylinder 6. The fixing seat 7 on the top wall of the fixing cylinder 6 is movably connected to an active rod 8 by a bearing, and the fixing seat 7 on the bottom wall of the fixing cylinder 6 is movably connected to a driven rod by a bearing. Sprockets are fixed to the active rod 8 and the driven rod by pins, and the sprockets are meshed with a transmission chain 9.

[0066] Both the active rod 8 and the driven rod can rotate axially on the fixed seat 7, so that the active rod 8, the driven rod and the transmission chain 9 can be combined into a transmission mechanism. When the active rod 8 is driven by the power equipment, the transmission chain 9 can rotate continuously, so that the transmission chain 9 can drive the conveying rod 11 to move continuously through the fixed rod 10.

[0067] like Figure 1 and Figure 5As shown, in this embodiment, a plurality of evenly distributed partitions 13 are welded and fixed on the inner frame wall of the fixed frame 12, guide blocks 15 are arranged on both sides of the fixed frame 12, two symmetrically distributed baffles 14 are welded and fixed on the top surface of the partition 13, and the diameter of the conveying rod 11 is smaller than the distance between two adjacent partitions 13.

[0068] Before the garbage in the freezing area 4 falls into the crushing area 5, it will first fall onto the partition 13 on the fixed frame 12, and the conveying rod 11 rotated to the bottom of the transmission chain 9 will pass through the two partitions 13. In the process of passing, the garbage can be driven to move. The garbage that has been fully frozen will become very brittle. When the garbage moves with the conveying rod 11 and contacts the baffle 14, the garbage will be squeezed by the conveying rod 11 and the baffle 14 and broken. The broken garbage will fall into the crushing area 5 through the gap between the partitions 13.

[0069] The garbage that is not fully frozen still has a certain degree of flexibility and cannot be broken. It will enter the fixed cylinder 6 as the conveying rod 11 rotates. The garbage moves from bottom to top in the fixed cylinder 6 and is finally conveyed out by the conveying rod 11. The liquid nitrogen spray disc 29 can perform secondary freezing on the garbage to ensure that the garbage is fully frozen.

[0070] like Figure 1 and Figure 6 As shown, in this embodiment, the wall of the processing box 1 on both sides of the crushing area 5 is provided with an extrusion block 16, and a movable plate 17 is provided in the crushing area 5. The movable plate 17 is elastically and movably connected to the extrusion block 16. The movable plate 17 is in an inverted "V" shape. A group of guide columns 22 are welded to the top walls on both sides of the movable plate 17. A hole groove 21 for inserting the guide column 22 is opened on the side opposite to the extrusion block 16 and the movable plate 17. The guide column 22 is welded to the bottom of the hole groove 21 through a spring 23.

[0071] The cross section of the extrusion block 16 is an isosceles triangle, the inclined surface of the extrusion block 16 is parallel to the surface of the movable plate 17 , and the bottom edge of the extrusion block 16 is welded to the inner wall of the processing box 1 .

[0072] The broken garbage and waste squeezed by the conveying rod 11 and the baffle 14 will fall onto the movable plate 17 and slide downward along the two sides of the movable plate 17. When the conveying rod 11 passes between the two partitions 13, it will contact the movable plate 17 and exert an extrusion force on the movable plate 17. Since the guide column 22 can move vertically along the hole groove 21, the movable plate 17 is pushed downward. At this time, the garbage and waste will fall between the movable plate 17 and the squeezing block 16.

[0073] When the conveying rod 11 is separated from the movable plate 17, under the elastic force of the spring 23, the movable plate 17 returns to its original position and moves upward, so that the garbage can be crushed in cooperation with the extrusion block 16, and the garbage can be crushed into particles after preliminary crushing. The conveying rod 11 rotates continuously, thereby driving the movable plate 17 to move up and down continuously, thereby continuously crushing the garbage.

[0074] like Figure 1 and Figure 7 As shown, in this embodiment, the wall of the processing box 1 on both sides of the movable plate 17 is provided with an open groove 19, and the open groove 19 is used to connect the crushing area 5 and the disinfection area 3. An inclined guide plate 20 is provided on one side of the opening groove 19. The guide plate 20 is located in the disinfection area 3, and one side of the guide plate 20 is fixedly bonded to the outer wall of the processing box 1 through a rubber strip 24.

[0075] The crushed garbage will slide through the open groove 19 to the bottom of the disinfection area 3 to facilitate subsequent high-temperature steam disinfection. When the air knife 35 generates a high-pressure airflow to blow the garbage particles upward, in order to prevent the airflow from entering the open groove 19 and hindering the discharge of the material, a guide plate 20 is provided. The guide plate 20 can not only realize the function of guiding the material, but also, when blown by the airflow, the guide plate 20 can be flipped upward as a whole through the rubber strip 24, so as to block the open groove 19 and prevent the airflow from entering. When the high-pressure airflow disappears, the guide plate 20 can be reset under the action of its own gravity.

[0076] like Figure 1 , Figure 8 and Fig. 9 As shown, in this embodiment, a rectangular through groove is provided on the wall of the outer cover shell 2 on one side of the disinfection area 3, and a condensation plate 25 is welded and fixed on the outer wall of the processing box 1 on one side of the disinfection area 3. The condensation plate 25 is made of aluminum. A plurality of heat-conducting columns 26 are formed on the side of the condensation plate 25 away from the steam spray plate 30. The heat-conducting columns 26 penetrate the outer cover shell 2 and extend into the liquid nitrogen spray plate 29. The heat-conducting columns 26 are welded and fixed to the wall of the liquid nitrogen spray plate 29. The steam spray plate 30 is welded and fixed in the rectangular through groove. The steam spray plate 30 is evenly provided with steam spray holes facing the side of the condensation plate 25.

[0077] An air knife 35 is provided at the bottom of the disinfection area 3, and the walls of the two outer cover shells 2 are penetrated by second shunt pipes 37 welded and fixed thereto. One end of the two second shunt pipes 37 is connected to the air inlet pipe 36 through a three-way solenoid valve, and the other end of the second shunt pipe 37 is connected to the air knife 35.

[0078] The outer side of the steam spray plate 30 is welded with a steam inlet pipe, which is used to connect with equipment such as a steam generator to introduce high-temperature steam into the steam spray plate 30. The air inlet pipe 36 is used to connect with an air source, such as an air pump. The air pump is used to generate a high-pressure airflow. The high-pressure airflow can enter the second diverter pipe 37 through the air inlet pipe 36, and finally enter the air knife 35 through the second diverter pipe 37.

[0079] The air knife 35 is bolted to the wall of the outer shell 2 and is flat as a whole. It can spray strong and high-speed airflow, which can blow the garbage particles upward. The garbage particles can fully contact with the steam during the process of rising and free falling in the disinfection area 3, thereby improving the disinfection effect.

[0080] The three-way solenoid valve can alternately open and close the two second shunt pipes 37, and then the garbage can be blown intermittently in the two disinfection areas 3, so that the garbage particles can continuously rise and fall, and also avoid the generation of continuous high-pressure airflow that affects the steam disinfection operation.

[0081] like Figure 1 and Fig. 9 As shown, in this embodiment, a guide plate 31 is welded on the wall of the outer shell 2 on one side of the disinfection area 3. The guide plate 31 is an isosceles trapezoidal structure. A notch 32 for the condensation plate 25 to penetrate is provided at the top of the guide plate 31. A horizontal plate 33 is welded on the inner wall of the guide plate 31.

[0082] The transverse plate 33 , the inner wall of the guide plate 31 and the outer wall of the outer casing 2 enclose a water collecting chamber, and a drainage pipe 34 is welded to the wall of the guide plate 31 on one side of the water collecting chamber, and one end of the drainage pipe 34 extends out from the outer casing 2 .

[0083] The shape of the guide plate 31 is designed so that when the airflow carries the garbage particles upward, it can flow upward toward the side of the steam spray plate 30. This can control the flow direction of the garbage particles, thereby improving the contact effect between the steam and the garbage, and can also prevent the garbage particles from contacting the condensation plate 25. The structure is reasonable.

[0084] like Fig.10 As shown, in this embodiment, a ball groove 1101 is formed at one end of the conveying rod 11 away from the fixing rod 10 , and a ball 1102 is disposed inside the ball groove 1101 .

[0085] When the conveying rod 11 rotates to contact the surface of the movable plate 17, indirect contact is achieved through the ball bearings 1102, thereby reducing the friction generated by the collision, thereby ensuring that the movable plate 17 can be squeezed and pushed downward smoothly.

[0086] like Figure 2As shown, in the present embodiment, one end of the active rod 8 passes through the back of the processing box 1 and is connected to the wall bearing of the processing box 1. A set of side plates are welded and fixed to the back of the processing box 1. A transmission rod 38 is connected to the shaft of the side plate. Two symmetrically distributed main bevel gears 39 are fixed by a pin on the transmission rod 38. The end of the active rod 8 extending from the processing box 1 is fixed by a pin with a secondary bevel gear meshing with the main bevel gear 39.

[0087] The two active rods 8 are driven by the transmission rod 38, so that the transmission rod 38 and the motor equipment only need to be connected to realize the synchronous operation of the two active rods 8, thereby reducing the energy consumption of the equipment operation.

[0088] like Figure 1 As shown, in this embodiment, the cross section of the material guide block 15 is a right triangle, the inclined surfaces of the two material guide blocks 15 are opposite, and the right-angled sides of the material guide blocks 15 are welded to the inner wall of the processing box 1.

[0089] Since the length of the conveying rod 11 is limited, the garbage and waste that falls onto the partition 13 will be concentrated in the middle of the fixed frame 12 under the guidance of the guide block 15, so that the conveying rod 11 can contact the garbage and waste when rotating.

[0090] In the description of this specification, "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0091] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0092] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-temperature steam sterilization device for medical waste, comprising a treatment box (1), a material drop opening (18) opened at the top of the treatment box (1), an outer cover shell (2) welded and fixed to both sides of the treatment box (1), and a fixing frame (12) welded and fixed to the inner wall of the treatment box (1), a disinfection area (3) is formed between the side wall of the treatment box (1) and the inner wall of the outer cover shell (2), and the interior of the treatment box (1) is divided into a freezing area (4) and a crushing area (5) by the fixing frame (12), The freezing zone (4) is provided with a fixed cylinder (6), and liquid nitrogen spray discs (29) are fixed to the inner walls of the processing box (1) on both sides of the freezing zone (4), and the liquid nitrogen spray disc (29) is provided with a plurality of spray heads for spraying liquid nitrogen on one side facing the fixed cylinder (6). A set of transmission chains (9) are sleeved on both side walls of the fixed cylinder (6), a fixed rod (10) is welded and fixed on the chain plate of the transmission chain (9), and a plurality of evenly distributed conveying rods (11) are welded and fixed on the fixed rod (10). A plurality of evenly distributed partitions (13) are welded and fixed on the inner frame wall of the fixed frame (12), guide blocks (15) are arranged on both sides of the fixed frame (12), and two symmetrically distributed baffles (14) are welded and fixed on the top surface of the partition (13). A rectangular through groove is formed on the wall of the outer casing (2) on one side of the disinfection zone (3); a condensation plate (25) is welded and fixed on the outer wall of the treatment box (1) on one side of the disinfection zone (3); a steam spray plate (30) is welded and fixed in the rectangular through groove; and the steam spray plate (30) is evenly formed with steam spray holes facing one side of the condensation plate (25). An air knife (35) is provided at the bottom of the disinfection area (3), and a second shunt pipe (37) welded and fixed to the wall of the two outer shells (2) passes through each other, one end of the two second shunt pipes (37) is connected to the air inlet pipe (36) through a three-way solenoid valve, and the other end of the second shunt pipe (37) is connected to the air knife (35). The walls of the processing box (1) on both sides of the crushing area (5) are provided with extrusion blocks (16), and a movable plate (17) is provided in the crushing area (5). The movable plate (17) is elastically and movably connected to the extrusion block (16). The walls of the processing box (1) on both sides of the movable plate (17) are provided with opening grooves (19), and the opening grooves (19) are used to connect the crushing area (5) and the disinfection area (3).

2. The high-temperature steam sterilization equipment for medical waste according to claim 1, characterized in that: The cross section of the fixed tube (6) is in the shape of a rectangular frame, the top and bottom ends of the fixed tube (6) are both open, and the fixed tube (6) is welded and fixed to the inner wall of the processing box (1); A group of fixing seats (7) are welded and fixed to the top and bottom walls on both sides of the fixing cylinder (6); an active rod (8) is movably connected to the bearing of the fixing seat (7) on the top wall of the fixing cylinder (6); a driven rod is movably connected to the bearing of the fixing seat (7) on the bottom wall of the fixing cylinder (6); sprockets are fixed to the active rod (8) and the driven rod by means of a pin, and the sprockets are meshed with a transmission chain (9).

3. The high-temperature steam sterilization equipment for medical waste according to claim 2, characterized in that: One end of the active rod (8) passes through the back of the processing box (1) and is connected to the wall bearing of the processing box (1). A group of side plates are welded and fixed to the back of the processing box (1). A transmission rod (38) is axially connected to the side plate. Two symmetrically distributed main bevel gears (39) are fixed to the drive rod (38) by a bayonet. The end of the active rod (8) extending from the processing box (1) is fixed to a secondary bevel gear meshing with the main bevel gear (39) by a bayonet.

4. The high-temperature steam sterilization equipment for medical waste according to claim 1, characterized in that: The diameter of the conveying rod (11) is smaller than the distance between two adjacent partitions (13); a ball groove (1101) is provided at one end of the conveying rod (11) away from the fixing rod (10); and a ball (1102) is arranged inside the ball groove (1101).

5. The high-temperature steam sterilization equipment for medical waste according to claim 1, characterized in that: The movable plate (17) is in an inverted "V" shape, and the four side walls of the movable plate (17) are seamlessly fitted with the inner wall of the processing box (1). A group of guide columns (22) are welded to the top walls on both sides of the movable plate (17); a hole groove (21) for inserting the guide column (22) is formed on a side of the extrusion block (16) opposite to the movable plate (17); and the guide column (22) is welded to the bottom of the hole groove (21) via a spring (23).

6. The high-temperature steam sterilization equipment for medical waste according to claim 1, characterized in that: The cross section of the guide block (15) is a right triangle, the cross section of the extrusion block (16) is an isosceles triangle, the inclined surfaces of the two guide blocks (15) are opposite, and the lower inclined surface of the extrusion block (16) is parallel to the surface of the movable plate (17); The right-angled side of the material guide block (15) and the bottom side of the extrusion block (16) are both welded to the inner wall of the processing box (1).

7. The high-temperature steam sterilization equipment for medical waste according to claim 1, characterized in that: The liquid nitrogen spray plate (29) is a hollow box structure, and the two side walls of the processing box (1) are penetrated by a first shunt pipe (28) welded thereto, and the first shunt pipe (28) is welded to one side of the liquid nitrogen spray plate (29); One end of the two first flow dividing pipes (28) is connected to a liquid inlet pipe (27) via a tee, and the liquid inlet pipe (27) is used to introduce liquid nitrogen.

8. The high-temperature steam sterilization equipment for medical waste according to claim 1, characterized in that: An inclined material guide plate (20) is provided on one side of the opening groove (19); the material guide plate (20) is located in the disinfection area (3); and one side of the material guide plate (20) is fixedly bonded to the outer wall of the processing box (1) via a rubber strip (24).

9. The high-temperature steam sterilization equipment for medical waste according to claim 1, characterized in that: A guide plate (31) is welded to the wall of the outer casing (2) on one side of the disinfection zone (3), the guide plate (31) is in an isosceles trapezoidal structure, a notch (32) for the condensation plate (25) to penetrate is provided at the top of the guide plate (31), and a transverse plate (33) is welded to the inner wall of the guide plate (31). The transverse plate (33), the inner wall of the guide plate (31) and the outer wall of the outer casing (2) enclose a water collecting chamber, and a drainage pipe (34) is welded to the wall of the guide plate (31) on one side of the water collecting chamber, and one end of the drainage pipe (34) extends out from the inner wall of the outer casing (2).

10. The high-temperature steam sterilization equipment for medical waste according to claim 1, characterized in that: The condensation plate (25) is made of aluminum. A plurality of heat-conducting columns (26) are formed on one side of the condensation plate (25) away from the steam spraying plate (30). The heat-conducting columns (26) penetrate the outer cover shell (2) and extend into the liquid nitrogen spraying plate (29). The heat-conducting columns (26) are fixed to the wall of the liquid nitrogen spraying plate (29) by welding.

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