CN112517599B

CN112517599B - Medical waste treatment device and treatment method thereof

Info

Publication number: CN112517599B
Application number: CN202011168593.4A
Authority: CN
Inventors: 洪国粦; 洪翔宾; 马晓波; 杨园园; 陈嘉明
Original assignee: Srm Xiamen Technology Co ltd
Current assignee: Srm Xiamen Technology Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-11-30
Anticipated expiration: 2040-10-28
Also published as: CN112517599A

Abstract

The invention discloses a medical waste treatment device and a treatment method thereof. The device comprises: an ultraviolet lamp tube and a first weight sensor are arranged in the material box; the material pressing motor is electrically connected with the pressure arm; a relatively meshed blade group mechanism is arranged in the blade box, and a feed valve is arranged between the blade box and the material box; the disinfectant tank is communicated with the blade box through a disinfectant pump; the outlet end of the water pump is communicated with the blade box; the water pumping motor is used for enabling the solid-liquid mixture to circulate in the blade box and the material box in a reciprocating mode; the waste collection box is communicated with the blade box through a filter screen, and a second weight sensor and a drying device are arranged in the waste collection box. The method comprises the following steps: sterilizing and weighing the medical waste by ultraviolet rays; then compacting and crushing; soaking the crushed medical waste by using a disinfectant; the medical waste is circulated back and forth between the blade box and the material box to be fully disinfected; then carrying out solid-liquid separation on the mixture; the solid waste was sterilized and dried, weighed again and the weight data recorded.

Description

Medical waste treatment device and treatment method thereof

Technical Field

The invention relates to the technical field of medical instruments, in particular to a medical waste treatment device and a treatment method thereof.

Background

Medical waste refers to all waste which needs to be discarded and cannot be reused in hospitals, and comprises biological and non-biological waste and domestic garbage. Medical waste may contain a large amount of hospital microorganisms and harmful chemical substances, and even harmful substances, so that the medical waste is listed in the national hazardous waste list and is treated according to the hazardous waste treatment regulations, and the medical waste which is not subjected to disinfection pretreatment is not allowed to be directly buried. Common medical waste disposal methods include chemical disinfection, high-temperature incineration, plasma, high-temperature sterilization, electromagnetic wave sterilization, and the like. The requirement on environment-friendly treatment of the burned products is high, and the cost of treatment equipment is high; meanwhile, other treatment methods such as a plasma method, a high-temperature sterilization method and an electromagnetic wave sterilization method need to convey medical waste, and because the medical waste is large in size, cumbersome and difficult to transport, and transport equipment is simple and crude, not only can pollutants be leaked, and the infection risk is increased, but also the transport cost is increased.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a medical waste treatment apparatus and a treatment method thereof.

The present invention provides a medical waste treatment apparatus, comprising:

the material box is internally provided with an ultraviolet lamp tube and a first weight sensor;

the material pressing motor is electrically connected with a pressure arm arranged in the material box;

the blade box is internally provided with a blade group mechanism which is relatively occluded, the blade box is arranged below the material box, and a feed valve is arranged between the blade box and the material box;

the disinfectant tank is communicated with the blade box through a disinfectant pump;

the outlet end of the water pump is communicated with the blade box;

the water pumping motor is used for pumping the solid-liquid mixture in the blade box into the material box and enabling the solid-liquid mixture to circulate between the blade box and the material box in a reciprocating mode;

and the waste collection box is communicated with the blade box through a filter screen, and a second weight sensor and a drying device are arranged in the waste collection box.

As a further improvement of the present invention, the blade group mechanism includes a driving shaft and a driven shaft, a blade group a is disposed on the driving shaft, a blade group B is disposed on the driven shaft, the blade group a and the blade group B are relatively engaged, and a plurality of blade groups a and the blade group B respectively include a plurality of uniformly arranged blades, wherein the blades of the blade group a are arranged at different angles, the blades of the blade group B are arranged at different angles, and the blades of the blade group a are respectively engaged with the blades of the blade group B.

As a further improvement of the invention, the driving shaft is connected with a main motor, and the end part of the driven shaft is connected with the end part of the driving shaft through a gear.

As a further improvement of the invention, the interval between two adjacent blades is 0.02-0.08cm, and the occlusion angle of the two blades corresponding to the positions of the knife group A and the knife group B is 15-30 degrees.

As a further improvement of the present invention, the present invention further comprises an electric control cabinet electrically connected to the pumping motor, the main motor, the pressing motor, the water pump, the disinfectant pump, the ultraviolet lamp tube, the first weight sensor, the drying device, and the second weight sensor.

As a further improvement of the invention, a killing device is arranged in the waste collection box and is electrically connected with the electric control cabinet.

As a further improvement of the invention, the inlet end of the water pump is communicated with the water storage tank.

As a further improvement of the invention, the top ends of the inner sides of the blade box and the material box are respectively provided with a plurality of high-pressure spray heads.

The invention also provides a medical waste treatment method, which comprises the following steps:

step 1, putting medical waste into a material box, weighing the medical waste after ultraviolet sterilization, and recording weight data;

step 2, compacting and crushing the medical waste after weighing;

step 3, injecting a certain proportion of disinfectant and water into the blade box after the crushing is finished, and soaking the crushed medical waste to obtain a solid-liquid mixture;

step 4, pumping the solid-liquid mixture from the blade box to a material box through a water pumping motor, and enabling the solid-liquid mixture to circulate in the blade box and the material box in a reciprocating mode so as to be sufficiently sterilized;

step 5, after sufficient disinfection, performing solid-liquid separation on the solid-liquid mixture, detecting the separated liquid, discharging the liquid after reaching the standard, and discharging the solid waste into a waste collection box;

step 6, sterilizing and drying the solid waste, weighing again after drying, and recording weight data;

and 7, analyzing and calculating the weight of the medical waste before and after treatment, and transferring the solid waste when the weight is reduced within a normal range.

And 8, performing high-pressure washing and sterilizing treatment on the blade box and the material box to avoid secondary pollution.

As a further improvement of the invention, the disinfecting solution comprises a plurality of disinfectants, wetting agents and brown dyes, wherein the plurality of disinfectants comprise turpentine, n-alkyl dimethyl benzyl ammonium chloride, isopropanol, glutaraldehyde and didodecyl dimethyl ammonium chloride.

The invention has the beneficial effects that: firstly, the medical waste treatment device is a field on-site treatment device, so that the treatment cost is effectively saved, and the full-automatic treatment device saves the recording, packaging and transferring processes, so that the treatment efficiency is high; secondly, dioxin, furan and biogenic aerosol are not generated in the waste treatment process, specific biohazardous waste is converted into benign waste, the waste water is degradable, no pollution is caused to the environment, and the solid waste filling amount can be reduced by 90%; and finally, the weight of the medical waste before and after treatment is monitored, so that the leakage or loss of the medical waste is effectively avoided, and the volume reduction and the weight reduction meet the standard.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is an exploded view of a medical waste disposal device according to an embodiment of the present invention;

FIG. 2 is a schematic view showing the internal structure of a blade box of the medical waste disposal apparatus according to the embodiment of the present invention;

fig. 3 is a flow chart of a medical waste treatment method according to an embodiment of the invention.

In the figure, the position of the upper end of the main shaft,

1. a caster wheel; 2. a support; 3. a disinfectant tank; 4. a blade case; 5. a water pump; 6. a disinfectant pump; 7. a water pumping motor; 8. an automatic door opening motor; 9. a left door handle; 10. a right door handle; 11. a material box; 12. a main motor; 13. a material pressing motor; 14. an electric control cabinet; 15. a waste collection bin; 16. an ultraviolet lamp tube; 17. a front wall panel; 18. a left side plate; 19. a support plate; 20. a drive shaft; 21. a driven shaft; 22. a right side plate; 23. a rear wall panel; 24. a cutter group A; 25. a cutter group B; 26. a gear; 27. a blade.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, in the description of the present invention, the terms used are for illustrative purposes only and are not intended to limit the scope of the present invention. The terms "comprises" and/or "comprising" are used to specify the presence of stated elements, steps, operations, and/or components, but do not preclude the presence or addition of one or more other elements, steps, operations, and/or components. The terms "first," "second," and the like may be used to describe various elements, not necessarily order, and not necessarily limit the elements. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified. These terms are only used to distinguish one element from another. These and/or other aspects will become apparent to those of ordinary skill in the art in view of the following drawings, and the description of the embodiments of the present invention will be more readily understood by those of ordinary skill in the art. The drawings are only for purposes of illustrating the described embodiments of the invention. One skilled in the art will readily recognize from the following description that alternative embodiments of the structures and methods illustrated in the present application may be employed without departing from the principles described in the present application.

Example 1, as shown in fig. 1 to 2, a medical waste treatment apparatus according to an example of the present invention includes:

the material tank 11 is provided with an ultraviolet lamp tube 16 and a first weight sensor inside. The material tank 11 is used for storing the medical waste before treatment, and the medical waste before treatment is sterilized and weighed in the material tank 11. Preferably, the material box 11 is provided with a full-automatic feeding door, the automatic door opening motor 8 is used for controlling the opening and closing of the full-automatic feeding door, the electric control cabinet 14 is electrically connected with the automatic door opening motor 8, and the feeding operation of the material box 11 can be realized through the electric control cabinet 14. The full-automatic feeding door replaces the traditional manual door opening and closing operation, and the safety coefficient is greatly improved while the efficiency is improved. The ultraviolet lamp 16 is used for performing a primary sterilization treatment on medical waste that is not crushed, in this embodiment, the ultraviolet lamp 16 is fixed on the upper portion of the material tank 11 by means of plugging, and other connection methods may be used to fix the ultraviolet lamp 16, which are not limited to the above connection methods. The first weight sensor is used for weighing the untreated medical waste and transmitting the weighing result to the electric control cabinet 14 for recording.

And the material pressing motor 13 is electrically connected with a pressure arm arranged in the material box 1. The material pressing motor 13 drives the pressure arm to compact the medical waste in the material box 11, so that the volume of the medical waste is reduced, and the medical waste can conveniently enter the cutter box 4 to be crushed. This application adopts the mode of motor drive pressure arm, has replaced the traditional mode that utilizes water conservancy to come drive pressure arm, has effectively improved compaction efficiency. According to the embodiment, the pressing motor 13 is fixed on the outer side wall of the material box 11 through the channel steel and the bolts, the pressing motor 13 can also be selected from other setting positions and connection modes, and the application is not specifically limited.

Blade case 4, its inside is equipped with the blade group mechanism of relative interlock, and blade case 4 is located the below of material case 11, is equipped with the feed valve between blade case 4 and the material case 11. The compacted medical waste enters the cutter box 4 through the feed valve and is then comminuted by the blade set mechanism. Optionally, the feed valve may be controlled by manual operation, or may be controlled by the electronic control cabinet 14. In order to realize the full-automatic treatment of the medical waste treatment device, the feeding valve is electrically connected with the electric control cabinet 14 in the embodiment, so that the electric control cabinet 14 controls the opening and closing of the feeding valve. In this embodiment, the blade case 4 is bolted to the bottom of the outer side of the material case 11 through the channel steel at the top of the outer side. Other connection modes can be selected to realize the fixed connection between the material box 11 and the blade box 4, and the application is not limited specifically.

The disinfectant tank 3 is communicated with the blade box 4 through a disinfectant pump 6;

and the outlet end of the water pump 5 is communicated with the blade box 4, and the inlet end of the water pump 5 is communicated with the water storage tank.

The water pump 5 is used for conveying tap water or purified water in the water storage tank to the blade box 4, the disinfectant pump 6 is used for conveying disinfectant in the disinfectant tank 3 to the blade box 4, the relative input amount of water and the disinfectant is controlled according to the set proportion of the disinfectant to the water until disinfectant with a certain concentration is obtained, all crushed medical wastes are immersed, namely the water pump 5 and the disinfectant pump 6 are closed, and the crushed medical wastes are immersed in the disinfectant to form a solid-liquid mixture.

And the water pumping motor 7 is used for providing power for reciprocating circulation of the solid-liquid mixture between the blade box 4 and the material box 11, pumping the solid-liquid mixture in the blade box 4 into the material box 11 and reciprocating the solid-liquid mixture between the blade box 4 and the material box 11. The water pumping motor 7 pumps the solid-liquid mixture from the lowest position of the blade box 4 to the highest position of the material box 11, then the solid-liquid mixture is sprinkled from the highest position in the material box 11, an annular water flow reciprocating circulation is formed between the blade box 4 and the material box 11, not only can medical waste particles be fully sterilized, but also medical waste can wash the inner walls of the material box 11 and the blade box 4 and the blade group mechanism in the sprinkling process, medical waste remained in the material box 11 and the blade box 4 and on the blade group mechanism can be cleaned, and meanwhile, the sterilizing effect can be achieved. The feed valve is always open during this process.

And a waste collection box 15 communicated with the blade box 4 through a filter screen, wherein a second weight sensor and a drying device are arranged inside the waste collection box 15. The filter screen carries out solid-liquid separation on the disinfected solid-liquid mixture, and the separated liquid passes through a detection instrument to detect the components and the concentration of the liquid, and if the liquid reaches the discharge standard, the liquid is directly discharged into a sewer pipeline. The separated solid is left in the waste collection box 15 and dried by the drying device, and then the dried solid is weighed by the second weight sensor and the weight data is uploaded to the electric control cabinet 14 for recording. The electric control cabinet 14 monitors a whole-course data source of the disinfection process through a preset program, analyzes and calculates the weight data of the medical waste before and after treatment, transfers or stores the solid if the weight loss before and after treatment is within a normal range, and needs further checking by staff if the weight loss of the medical waste before and after treatment exceeds the normal range to confirm whether the medical waste is lost or leaked in the medical waste treatment process. In this embodiment, the waste collection box 15 is disposed below the cutter box 4, the filter screen is disposed between the cutter box 4 and the collection box 15, and the waste collection box 15 is formed as a drawer, and the waste collection box 15 can be drawn out after the completion of the treatment, thereby performing the next operation on the solid medical waste in real time. The aperture of the filter screen is determined according to the particle size of the crushed medical waste, in the embodiment, the aperture of the filter screen is 6-9mm, and filter screens with other apertures can be set, but not limited to the above aperture.

Further, the blade group mechanism comprises a driving shaft 20 and a driven shaft 21, a blade group A24 is arranged on the driving shaft 20, a blade group B25 is arranged on the driven shaft 21, the blade group A24 and the blade group B25 respectively comprise a plurality of uniformly arranged blades 27, and the blade group A24 and the blade group B25 are meshed relatively. The blades 27 of the group a24 are arranged at different angles, the blades 27 of the group B25 are arranged at different angles, and the blades 27 of the group a24 are engaged with the blades 27 of the group B25. The plurality of blades 27 of the knife group A24 and the knife group B25 are arranged at different angles respectively, so that the knife group A24 and the knife group B25 can cut and crush medical wastes with different shapes or falling angles. In the present embodiment, the installation angle difference between two adjacent blades 27 is set to be in the range of 15 ° to 25 °, and other angle differences may be selected, and the present application is not limited specifically.

Further, the driving shaft 20 is connected to the main motor 12, and the end of the driven shaft 21 is connected to the end of the driving shaft 20 through a gear 26. The main motor 12 drives the driving shaft 20 to rotate, the driving shaft 20 drives the driven shaft 21 to rotate in the opposite direction through the gear 26, so that the cutter set A24 and the cutter set B25 are relatively engaged, and medical waste is extruded and crushed. In this embodiment, the main motor 12 drives the driving shaft 20 to rotate counterclockwise, and the driven shaft 21 rotates clockwise.

Further, the interval between two adjacent blades 27 is 0.02-0.08cm, and the meshing angle of the two blades 27 corresponding to the positions of the knife group A24 and the knife group B25 is 15-30 degrees. The arrangement mode can ensure that the particle size of the crushed medical waste is between 5 and 8mm, and the filter screen can conveniently filter the medical waste particles. The interval between two adjacent blades 27 and the occlusion angle of two corresponding blades 27 can be determined according to the aperture of the filter screen, so as to obtain the medical waste particles which can be filtered by the filter screen.

Further, the device also comprises an electric control cabinet 14 which is electrically connected with the water pumping motor 7, the main motor 12, the material pressing motor 13, the water pump 5, the disinfectant pump 6, the ultraviolet lamp tube 16, the first weight sensor, the drying device and the second weight sensor. In this embodiment, the water pumping motor 7, the main motor 12, the material pressing motor 13, the water pump 5, the disinfectant pump 6, the ultraviolet lamp tube 16, the drying device and the weight sensor are all integrally controlled by the electric control cabinet 14, the set control program of the electric control cabinet 14 controls the opening or closing of the water pumping motor 7, the main motor 12, the material pressing motor 13, the water pump 5, the disinfectant pump 6, the ultraviolet lamp tube 16 and the drying device, and data in the treatment process are transmitted and monitored, so that the automatic control of the medical waste treatment device can be realized. Automatically controlled cabinet 14 is used for realizing whole medical waste processing apparatus's full automatic operation, and when medical waste put in material case 11, the weighing of material before this time of handling is carried out automatically to first weighing sensor, and second weighing sensor can be automatically weighed the solid residue that has handled, calculates this time processing procedure through automatically controlled cabinet 14 and whether has medical waste to leak or the condition that runs off, accomplishes to subtract heavy reaching standard. The control program set by the electric control cabinet 14 monitors and calculates the extinction index of bacteria, viruses or microorganisms in the processing process through data in the processing process and after the processing is finished, and automatically sends the data to the terminal platform.

Preferably, the electric control cabinet 14, the pumping motor 7, the main motor 12, the pressing motor 13, the water pump 5, the disinfectant pump 6, the blade box 4, the material box 11, the waste collection box 15 and other mechanisms are integrally arranged in one shell box, so that the medical waste treatment device achieves the effects of saving the installation space and being attractive. Preferably, the housing box is connected by a frame 2 at its bottom to a plurality of casters 1 to facilitate handling or movement of the medical waste device. More preferably, a plurality of casters 1 are uniformly provided at the bottom of the frame 2 to stabilize the medical waste during the transportation or movement.

Furthermore, a killing device is arranged in the waste collection box 15 and is electrically connected with the electric control cabinet 14. The sterilizing device is used for secondarily sterilizing the solid wastes in the waste collection tank 15 to ensure the safety of the discharge of the medical wastes. Carry out automatic control to the device that kills through automatically controlled cabinet 14, what the device selected for use in this embodiment is the ultraviolet ray device that kills, also can select the device that kills of other types, and this application does not do specifically and restricts.

Furthermore, a plurality of high-pressure spray heads are arranged at the top ends of the inner sides of the blade box 4 and the material box 11. The high-pressure sprayer is used for washing the interiors of the blade box 4 and the material box 11 at high pressure, so that medical waste residues are further removed, and secondary pollution is avoided.

Embodiment 2, as shown in fig. 3, the present invention also provides a medical waste treatment method using the medical waste treatment apparatus of embodiment 1, the treatment method comprising the steps of:

step 1, putting medical waste into a material box 11, carrying out ultraviolet sterilization on the medical waste through an ultraviolet lamp tube 16, then weighing the medical waste through a first weight sensor, and uploading weight data to an electric control cabinet 14 for recording;

step 2, compacting the weighed medical waste through a material pressing motor 13 and a pressure arm, conveying the compacted medical waste into a blade box 4, and crushing the medical waste through a blade set mechanism;

step 3, respectively injecting disinfectant and water in a certain proportion into the blade box 4 through a water pump 5 and a disinfectant pump 6 to form disinfectant water with a certain concentration to soak the crushed medical waste to obtain a solid-liquid mixture;

step 4, pumping the solid-liquid mixture from the lowest position of the blade box 4 to the highest position of the material box 11 through the water pumping motor 7, so that annular water flow reciprocating circulation is formed between the solid-liquid mixture blade box 4 and the material box 11, and each medical waste particle is sufficiently sterilized;

step 5, after sufficient disinfection, performing solid-liquid separation on the solid-liquid mixture through a filter screen, detecting components and concentration of the separated liquid, directly discharging the sorted liquid into a sewer after the liquid reaches a discharge standard, and reserving the separated solid in a waste collection box 15;

step 6, drying the solid waste in the waste collection box 15 through a drying device, sterilizing the dried solid medical waste through a sterilizing device, finally weighing the solid medical waste again through a second weight sensor, and uploading the weight data to the electric control cabinet 14 for recording;

and 7, analyzing and calculating the weight of the medical waste before and after treatment through a preset program in the electric control cabinet 14, if the weight of the medical waste before and after treatment is within a normal range, transferring the solid waste, and if the weight of the medical waste before and after treatment is beyond the normal range, further checking by a worker to confirm whether the medical waste is lost or leaked in the medical waste treatment process.

And 8, carrying out high-pressure washing and sterilizing treatment on the blade box 4 and the material box 11 through a plurality of high-pressure spray heads so as to thoroughly remove the residues of medical wastes and avoid secondary pollution.

Further, the disinfectant solution comprises a plurality of disinfectants, wetting agents and brown dyes, wherein the plurality of disinfectants comprise turpentine, n-alkyl dimethyl benzyl ammonium chloride, isopropanol, glutaraldehyde and didecyl dimethyl ammonium chloride.

The disinfectant used in this example is a SteriBio-CID (brand of disinfectant) disinfectant, which is different from the existing disinfectant on the market today. Many disinfectants, along with turpentine oil to prevent organic substances from decomposing the fragrance and brown dye to mark liquids to prevent misuse in clinical settings, together make up a compounded formulation. Wherein the disinfectant comprises turpentine, n-alkyl dimethyl benzyl ammonium chloride, isopropanol, glutaraldehyde and didecyl dimethyl ammonium chloride. Other types of disinfectants can be selected according to specific requirements, and are not limited to the disinfectants listed above, and the specific types of the disinfectants are not particularly limited in the application.

The disinfectant is compounded and used, and can treat various bacteria, spores and viruses. The combination of multiple disinfectants produces a unique synergistic effect, allowing each disinfectant to be combined at very low concentrations while increasing the effectiveness of the disinfectant. The concentration of each disinfectant is so low that the SteriBio-CID disinfectant can be discharged to a sewer directly after use; at the same time, the low concentration of the disinfectant component also enables the use of the SteriBio-CID disinfectant in small equipment rooms. Wherein, the turpentine is a grade 1 disinfectant, and is also used as a medical waste deodorant to eliminate odor generated by high-temperature storage in the medical waste treatment process; the turpentine oil is used under the condition of the participation of isopropanol, and can also be used as an effective cleaning agent or degreasing agent, so that the tissue structure of a biomembrane in a sewage pipe can be decomposed, and the accumulation of blood fat on a medical waste treatment device can be prevented. Glutaraldehyde can invade the cell wall or spore capsule, cross-linking with essential cellular components, such as deoxyribonucleic acid, biological enzymes, and cell membranes, rendering the organism non-viable. The didecyl dimethyl ammonium chloride and the n-alkyl dimethyl benzyl ammonium chloride, namely quaternary ammonium compounds, can decompose capsules and cell walls and improve the spore permeability of glutaraldehyde; in addition, quaternary amine compounds can break down proteins and cell membrane components, making the cell membrane very porous and more susceptible to other disinfectants.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Furthermore, those of ordinary skill in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

It will be understood by those skilled in the art that while the present invention has been described with reference to exemplary embodiments, various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A medical waste treatment device, comprising:

the material box (11) is internally provided with an ultraviolet lamp tube (16) and a first weight sensor;

the material pressing motor (13) is electrically connected with a pressure arm arranged in the material box (11);

the blade box (4) is internally provided with a blade group mechanism which is relatively engaged, the blade box (4) is arranged below the material box (11), and a feed valve is arranged between the blade box (4) and the material box (11);

the blade group mechanism comprises a driving shaft (20) and a driven shaft (21), a blade group A (24) is arranged on the driving shaft (20), a blade group B (25) is arranged on the driven shaft (21), the blade group A (24) and the blade group B (25) are relatively meshed, the blade group A (24) and the blade group B (25) respectively comprise a plurality of uniformly arranged blades (27), setting angles of the blades (27) of the blade group A (24) are different, setting angles of the blades (27) of the blade group B (25) are different, and the blades (27) of the blade group A (24) are respectively meshed with the blades (27) of the blade group B (25);

the interval between two adjacent blades (27) is 0.02-0.08cm, and the occlusion angle of the two blades (27) corresponding to the positions of the knife group A (24) and the knife group B (25) is 15-30 degrees;

the disinfectant tank (3) is communicated with the blade box (4) through a disinfectant pump (6);

the outlet end of the water pump (5) is communicated with the blade box (4);

a water pumping motor (7) for pumping the solid-liquid mixture in the blade box (4) into the material box (11) and making the solid-liquid mixture circulate between the blade box (4) and the material box (11) in a reciprocating way;

and the waste collection box (15) is communicated with the blade box (4) through a filter screen, and a second weight sensor and a drying device are arranged in the waste collection box (15).

2. The medical waste disposal device according to claim 1, wherein said driving shaft (20) is connected to a main motor (12), and an end of said driven shaft (21) is connected to an end of said driving shaft (20) through a gear (26).

3. The medical waste disposal device according to claim 2, further comprising an electric control cabinet (14) electrically connected to the water pumping motor (7), the main motor (12), the material pressing motor (13), the water pump (5), the sterilizing liquid pump (6), the ultraviolet lamp tube (16), the first weight sensor, the drying device, and the second weight sensor.

4. The medical waste disposal device according to claim 3, wherein a sterilizing device is provided in said waste collection tank (15), said sterilizing device being electrically connected to said electric control cabinet (14).

5. The medical waste treatment device according to claim 1, wherein the inlet end of the water pump (5) communicates with a water storage tank.

6. The medical waste disposal device of claim 1 wherein a plurality of high pressure jets are provided at the top inside ends of said blade tank (4) and said material tank (11).

7. A method of treating a medical waste treatment device according to any one of claims 1 to 6, comprising the steps of:

step 1, putting medical waste into a material box (11), weighing the medical waste after ultraviolet sterilization and recording weight data;

step 2, compacting and crushing the medical waste after weighing;

step 3, injecting a certain proportion of disinfectant and water into the blade box (4) after the crushing is finished, and soaking the crushed medical waste to obtain a solid-liquid mixture;

step 4, pumping the solid-liquid mixture from the blade box (4) to a material box (11) through a water pumping motor (7), and enabling the solid-liquid mixture to circulate between the blade box (4) and the material box (11) in a reciprocating mode to be sufficiently sterilized;

step 5, after sufficient disinfection, performing solid-liquid separation on the solid-liquid mixture, detecting the separated liquid, discharging the liquid after reaching the standard, and discharging the solid waste into a waste collection box (15);

step 7, analyzing and calculating the weight of the medical waste before and after treatment, and transferring the solid waste when the weight loss is within a normal range;

and 8, performing high-pressure washing and sterilizing treatment on the blade box (4) and the material box (11).

8. The treatment method as claimed in claim 7, wherein the sterilizing liquid comprises a plurality of disinfectants including turpentine, n-alkyl dimethyl benzyl ammonium chloride, isopropyl alcohol, glutaraldehyde and didodecyl dimethyl ammonium chloride, a wetting agent and a brown dye.