SYNERGISTIC STERILIZATION DEVICE FOR MEDICAL WASTE

Abstract

Title of the invention: SYNERGISTIC STERILIZATION DEVICE FOR MEDICAL WASTE The present invention relates to a synergistic sterilization device for medical waste. It comprises a pressure vessel and a high-speed grinder. The pressure vessel is equipped with a separation compartment. The separation compartment divides the internal cavity of the pressure vessel into an internal compartment space and an external compartment space. The internal compartment space is intended to hold the medical waste. The upper side wall or the top of said pressure vessel is equipped with a feed door that can be opened and closed. The top of the separation compartment is equipped with a feed compartment cover. The lower part or the lower side wall of the separation compartment is equipped with a first waste discharge door.The lower part or side wall of the pressure vessel is fitted with a second waste discharge door. The high-speed grinder is configured to grind, rapidly agitate, and generate heat by friction on the medical waste contained within the compartment's internal space. The pressure vessel is fitted with a steam inlet port, and the separation compartment is fitted with a steam channel connecting the compartment's internal and external spaces. The present invention effectively solves various problems related to the operation of a sterilization device incorporating a high-speed grinder within a pressure vessel, and fully exploits the advantages of synergistic sterilization through friction heat, microwaves, and superheated steam to achieve rapid sterilization of medical waste. (See Figure 1 for abbreviations.)

Description

Title of the invention: SYNERGISTIC STERILIZATION DEVICE FOR MEDICAL WASTE technical field

[0001] The present invention relates to the field of medical waste treatment technology, and more particularly to a synergistic sterilization device for medical waste. TECHNICAL CONTEXT

[0002] In medical waste sterilization devices equipped with an integrated shredder, the most common non-incineration sterilization processes for medical waste are superheated steam sterilization, microwave sterilization, and friction heat sterilization. Whether superheated steam, microwave, or friction heat sterilization, all have drawbacks such as prolonged sterilization times and low treatment efficiency.

[0003] Among these processes, superheated steam sterilization is a highly reliable non-incineration sterilization technology that does not result in any external emission of germ-laden gases during the treatment process, and it is the most widely used. The main problem, however, lies in the fact that the material can only be heated gradually from the outside in; medical waste located inside requires a relatively long heat transfer time before being sufficiently heated, which has a significant impact on the treatment efficiency. A superheated steam sterilization device equipped with an integrated grinder can substantially improve this problem.In the case of a superheated steam sterilization device using an integrated, low-speed, high-torque grinder, the waste fragments remain piled up in the sterilization compartment after grinding; therefore, the material must still be heated gradually from the outside in, without fundamentally resolving the problem of heating and sterilization efficiency. Conversely, a superheated steam sterilization device with an integrated, high-speed grinder presents other disadvantages: the material fragments, ejected at high speed after grinding, cause wear on the wall of the pressure vessel, and the sterilized residues tend to adhere to the residue discharge port and the discharge door upon exiting, making it difficult to ensure a tight seal. door of the pressure vessel. For this reason, neither existing literature nor practical applications have yet proposed a solution integrating, within a pressure vessel, a high-speed grinder capable of generating sufficient heat by friction for the superheated steam sterilization process.

[0004] As for the microwave sterilization process considered in isolation, it is limited by the restricted range of microwave radiation heating. Therefore, an integrated high-speed grinder is generally used, which grinds the medical waste while simultaneously incorporating the material fragments into a rapid mixing process. This ensures that all the medical waste passes repeatedly through the microwave radiation zone, thus guaranteeing uniform heating without dead zones. The main problem with this process lies in the fact that, in the event of a failure of the grinder or the stirring device, exceptional measures are necessary, such as the injection of a disinfectant liquid, to perform emergency disinfection of the contaminated medical waste whose sterilization is not yet complete, as well as of the devices (for example, the grinder blades), before the malfunction can be repaired.This results in a high risk of infection for operators. Furthermore, because the microwave sterilization device, when used in isolation, operates in a non-pressurized container, a large quantity of contaminated gas is continuously released during the microwave sterilization process. It is generally necessary to treat this contaminated gas using a high-efficiency filtration / adsorption device before release, but this solution contaminates the filtration / adsorption device itself, creating a new source of secondary pollution within the microwave sterilization process, which necessitates periodic secondary disinfection of the filtration / adsorption device.

[0005] The heat friction sterilization process, considered in isolation, also generally uses a non-pressurized container equipped with an integrated high-speed grinder. This type of solution presents similar problems to those of the microwave sterilization process, considered in isolation.

[0006] The combined "microwave and superheated steam" sterilization process is currently the most efficient technology in terms of yield, and the safest and most reliable process. The main characteristic of this process lies in the synergistic combination of superheated steam and microwaves: it exploits the advantage of the high penetrating power of microwaves, allowing direct heating of the material's interior, as well as the advantage of the broad coverage of superheated steam, ensuring gradual heating from the outside in. Thus, the external surface and the interior of the material are heated simultaneously, enabling rapid disinfection and sterilization. Another major advantage The key advantage of this process is that, thanks to the use of a pressurized container, no external emissions of contaminated gases occur during the sterilization process, unlike microwave or friction heat sterilization devices that use non-pressurized containers. This eliminates the risk of secondary pollution from the release of contaminated gases.

[0007] It follows from the above that the configuration using a pressure vessel fitted with an integrated high-speed mill has particularly notable advantages, whether for a synergistic process combining superheated steam and frictional heat, or for a synergistic process combining superheated steam, microwaves and frictional heat.However, the difficulty lies in how to fully exploit the respective advantages of superheated steam sterilization, friction heat sterilization and microwave radiation sterilization, while solving essential problems such as wear on the internal walls of the pressure vessel caused by material fragments projected during the operation of the high-speed grinder, the adhesion of material fragments to the inlet / outlet ports and inlet / outlet doors of the pressure vessel, and the limited range of microwave radiation, which creates dead zones in disinfection.

[0008] Existing documents contain descriptions of superheated steam sterilization devices equipped with a grinder integrated into a pressure vessel. For example, patent number US10,512,956B2 proposes a superheated steam sterilization treatment system with an integrated grinder. This system comprises a pressure vessel for sterilizing medical waste and a grinder, but the method of waste removal described in this patent involves rotating the entire pressure vessel to empty it through the feed port, using a single common feed and discharge door, without a structural design to address the problem of material fragments adhering. Furthermore, no solution is provided for protecting the inner wall of the pressure vessel when the grinder operates at a speed high enough to generate frictional heat.

[0009] Existing documents also contain descriptions of combined microwave and superheated steam sterilization devices, each with its own specific characteristics, but also with certain obvious drawbacks that limit their practical application. For example, patent application number ZL202022136580.0 proposes a pre-grinding type vertical combined microwave and superheated steam sterilization device, allowing for preliminary grinding before combined microwave and superheated steam sterilization. However, this device presents the following problems The following drawbacks are that the grinder it contains only has a grinding function, without any function to agitate the material fragments after grinding. Thus, once ground, the material remains stationary in the sterilization compartment, resulting in dead zones for microwave radiation. It is necessary to add an additional agitator inside the sterilization compartment to stir the waste fragments, or to rotate the entire compartment to compensate for the uneven distribution of microwaves. This results in a complex structure and a high cost.

[0010] Patent application published under number CN106670214A proposes a microwave-only treatment device equipped with an integrated grinder. This microwave treatment device comprises a tank, an integrated grinder, and a microwave generator. Since this device relies solely on a microwave treatment process, it clearly exhibits almost all the typical drawbacks of microwave-only sterilization devices described above. Furthermore, it suffers from the problem that fragments of medical waste affect the tank's sealing performance.Integrating a high-speed grinder into a pressure vessel of a superheated steam sterilizer, or into a pressure vessel of a synergistic microwave and superheated steam sterilizer, not only allows for the rapid agitation of medical waste fragments after grinding, thus improving the efficiency of steam heating and microwave sterilization, but also generates frictional heat, further enhancing disinfection and sterilization effectiveness. An integrated high-speed grinder performs three functions simultaneously: grinding, agitation, and heating of the material through frictional heat. However, the high-speed ejected waste fragments can damage the inner wall of the vessel.For a non-pressurized container, such damage does not pose a safety risk; however, for a pressurized container, persistent damage to the inner wall represents a particularly serious and unacceptable safety risk. Furthermore, the projection of waste fragments inside the container during processing, as well as their removal after processing, inevitably leads to adhesion of the inlet and outlet ports and doors of the pressurized container, causing difficulties in ensuring a tight seal, thus constituting a particularly significant problem. Description of the invention

[0011] The object of the present invention is to propose a synergistic sterilization device for medical waste, in order to mitigate or eliminate the aforementioned problems.

[0012] The synergistic sterilization device for medical waste of the present invention comprises a pressure vessel and a high-speed grinder. The pressure vessel is equipped with a separation compartment, said separation compartment dividing the internal cavity of the pressure vessel into an internal compartment space located inside the separation compartment and an external compartment space located outside said separation compartment. The internal compartment space receives the medical waste. The upper side wall or the top of the pressure vessel has an open / closeable feed door. The top of the separation compartment has an open / closeable feed compartment cover. The lower part or the lower side wall of the separation compartment has an open / closeable first waste discharge door.The lower part or side wall of the pressure vessel has a second, hinged waste discharge door. This second waste discharge door is located lower than the bottom of the separation compartment. The high-speed grinder rapidly grinds, agitates, and generates heat through friction on the medical waste contained within the compartment. The pressure vessel has a steam inlet. The separation compartment has a steam channel connecting the compartment's interior and exterior spaces.

[0013] Optionally, said vapor channel includes holes and / or gaps arranged on said separation compartment.

[0014] Optionally, said high-speed crusher includes crushing blades and an electric drive assembly for driving the rotation of the crushing blades, said crushing blades are arranged at the bottom of the internal space of said separation compartment.

[0015] Optionally, said electric drive assembly includes a drive motor and a transmission mechanism, said drive motor is installed outside the pressure vessel, said transmission mechanism is connected between said drive motor and said grinding blades.

[0016] Optionally, said synergistic sterilization device for medical waste further includes a microwave generator intended to irradiate by microwaves the medical waste that has been ground and rapidly agitated by the high-speed grinder in said internal space of the compartment.

[0017] Optionally, said microwave generator is installed outside said pressure vessel, said pressure vessel is arranged with one or more first microwave guidance orifices, said separation compartment is arranged with one or more second microwave guidance orifices, the microwaves emitted by said microwave generator are introduced into said internal space of the compartment via one or more first microwave guidance orifices and one or more second microwave guidance orifices.

[0018] Optionally, said cover of the power compartment is connected to said power door in such a way that the opening and closing of said cover of the power compartment are synchronized with those of said power door.

[0019] Optionally, the top or upper side wall of said pressure vessel is provided with a first feed port, said feed door is installed at this first feed port, the top of said separation compartment is provided with a second feed port, said feed compartment cover is installed at this second feed port, the lower part or lower side wall of said separation compartment is provided with a first waste discharge port, said first waste discharge door is installed on the first waste discharge port, said pressure vessel is provided with a second waste discharge port providing a passage for discharge of waste from said first waste discharge port, said second waste discharge door is installed on said second waste discharge port.

[0020] Optionally, said synergistic medical waste sterilization device further includes a residue discharge conveyor or a residue discharge chute, the inlet end of said residue discharge conveyor or residue discharge chute extends into the external space of the compartment via said second residue discharge orifice to receive the residue from said first residue discharge orifice, said residue discharge conveyor or residue discharge chute discharges the residue to the outside of the pressure vessel.

[0021] Optionally, the bottom of said pressure vessel is provided with a wastewater discharge port, said pressure vessel is provided with a residual gas discharge port and a water inlet port for the introduction of cooling water and / or wash water, said residual gas discharge port and said steam inlet port constitute the same fitting or separate fittings.

[0022] The present invention has the following characteristics:

[0023] It uses a pressurized container as the tank body, thus avoiding the common problem of sterilization devices using only microwaves or only heat by friction, which employ an unpressurized container and require the continuous evacuation of gases carrying microorganisms (including contaminated steam) during the treatment process. A separation compartment is arranged inside the pressurized container, so that medical waste remains in the separation compartment at all times during the entire sterilization process.When the high-speed shredder is in operation, the rapidly agitated medical waste fragments are contained within the separation compartment: these fragments do not damage the inner wall of the pressure vessel or the sensors inside the vessel, and they do not stick to the feed door or the first feed port, so the closure and sealing of the feed door and the first feed port are not affected; similarly, they do not stick to the second waste discharge port or the second waste discharge door, so the closure and sealing of the second waste discharge door and the second waste discharge port are not compromised.

[0024] The residues after disinfection and sterilization are discharged through the first discharge port and the second discharge port to the outside of the pressure vessel, which prevents fragments from sticking to the second discharge port during the discharge of the residues, and from negatively affecting the sealing of the second discharge port.

[0025] The separation of the first feed orifice and the first waste discharge orifice, as well as the separation of the second feed orifice and the second waste discharge orifice, facilitates the loading and unloading of medical waste.

[0026] A residue discharge conveyor or a residue discharge chute is provided so that, when the first residue discharge door is opened and the residue falls, it falls directly into the residue discharge conveyor or the residue discharge chute and is discharged from the sterilization device. The residue discharge conveyor or the residue discharge chute prevents residue from falling inside the device or from adhering to the second residue discharge opening during movement, which could impair the closure and sealing of the second residue discharge door and the second residue discharge opening.

[0027] Thanks to the innovative design mentioned above, the present invention successfully solves the problem whereby, when the integrated high-speed grinder operates at high speed, the high-speed agitated material fragments after Crushing damages the inner wall of the pressure vessel, and the fragments stick to the inlet / outlet and discharge / outlet ports, causing the inlet or discharge door of the pressure vessel not to close tightly, making it difficult to remove waste residues.

[0028] The high-speed grinder (typically operating between 800 and 2000 rpm) rapidly grinds and agitates the medical waste in the separation compartment, generating heat through friction between the blades and the waste, between the waste itself, and between the waste and the wall of the separation compartment, thus promoting rapid heating of the medical waste. Furthermore, this rapid agitation allows the high-temperature steam and microwaves to heat and sterilize the waste fragments more effectively. This design fully exploits the synergistic advantages of friction heating, microwaves, and high-temperature steam, effectively improving sterilization efficiency and enabling rapid sterilization of medical waste. DESCRIPTION OF THE FIGURES

[0029] Fig. 1 is a schematic view of the structure of the medical waste sterilization device according to certain embodiments.

[0030] In which, 1 — pressure vessel; 2 — separation compartment; 3 — high-speed crusher; 4 — microwave generator; 5 — residue removal conveyor; 6 — trolley;

[0031] 101 — body of the pressure vessel; 102 — feed door; 103 — space external compartment; 104 — residual gas vent; 105 — steam inlet; 106 — water inlet; 107 — wastewater outlet; 108 — first microwave guide port; 109 — second waste outlet; 110 — second waste outlet door; 111 — support foot;

[0032] 201 — body of the separation compartment; 202 — compartment cover power supply; 203 — internal space of the compartment; 204 — first waste discharge opening; 205 — first waste discharge door;

[0033] 301 — drive motor; 302 — transmission mechanism; 303 — blade grinding;

[0034] 501 — residue inlet port; 502 — residue discharge port. SPECIFIC IMPLEMENTATION METHODS

[0035] Embodiments of the present invention are described below with reference to the figures and preferred examples, and those skilled in the art can easily understand, from the content disclosed in this description, other advantages and effects of the present invention. The present invention can also be put into The invention may be adapted or modified according to other specific embodiments, and the various details described herein may be modified or adapted according to different perspectives and applications, without deviating from the spirit of the present invention. It should be understood that the preferred embodiments are intended solely to illustrate the present invention and do not limit the scope of its protection.

[0036] It is also specified that the figures provided in the following embodiments illustrate only schematically the basic design of the present invention; only the parts relevant to the present invention are shown, without regard to the actual number, shape, or dimensions of the components during implementation. In a practical embodiment, the shape, number, and proportions of the components can be freely modified, and the arrangement of the components can be more complex.

[0037] A synergistic sterilization device for medical waste, as illustrated in [Fig. 1], comprises a pressure vessel 1 and a high-speed grinder 3. The pressure vessel 1 is arranged with a separation compartment 2. The separation compartment 2 divides the internal cavity of the pressure vessel 1 into an internal space of compartment 203 located inside the separation compartment 2 and an external space of compartment 103 located outside the separation compartment 2. The internal space of compartment 203 receives the medical waste. The upper side wall or the top of the pressure vessel 1 has an opening and closing feed door 102. The top of the separation compartment 2 has an opening and closing cover for the feed compartment 202.The lower part or lower side wall of the separation compartment 2 has a first open / closeable waste discharge door 205. The lower part or side wall of the pressure vessel 1 has a second open / closeable waste discharge door 110. The second waste discharge door 110 is located lower than the bottom of the separation compartment 2. The high-speed grinder 3 is designed to grind, rapidly agitate, and generate heat by friction on the medical waste contained in the internal space of the compartment 203. The pressure vessel 1 has a steam inlet port 105. The separation compartment 2 has a steam channel connecting the internal space of the compartment 203 to the external space of the compartment 103.

[0038] By adopting the aforementioned synergistic sterilization device for medical waste, a separation compartment 2 is installed inside the pressure vessel 1, and the separation compartment 2 is used to form an internal space within the independent compartment 203. The loading area is separated medical waste is placed in the pressure vessel 1 of the other areas, and the internal space of compartment 203 is used to load the medical waste, limiting it to the inside of the separation compartment 2. This effectively prevents medical waste from being projected or overflowing into the external space of compartment 103 outside of the separation compartment 2 during high-speed operation of the crusher.During the operation of the high-speed grinder 3, the high-speed churned medical waste fragments are confined in the separation compartment 2, so that said medical waste fragments do not damage the inner wall of the pressure vessel 1 or the sensors located in the pressure vessel 1, nor do they adhere to the feed door 102 and the second discharge door 110 of the pressure vessel 1, which prevents the adverse influence of the medical waste fragments on the sealing performance of the feed door 102 and the second discharge door 110, which allows the pressure vessel 1 to better achieve and maintain a high internal pressure, thus guaranteeing the heating effect applied to the medical waste and ensuring its rapid sterilization and disinfection.

[0039] In the aforementioned synergistic sterilization device for medical waste, the steam inlet 105 is arranged to introduce superheated steam from the outside into the external space of compartment 103. The superheated steam contained in the external space of compartment 103 can then enter the internal space of compartment 203 via the steam channel. The use of the high-speed grinder 3 to grind and mix the medical waste contained in the separation compartment 2 allows the superheated steam to act more fully on said medical waste in the separation compartment after it has been ground by the high-speed grinder, so that the superheated steam can disinfect and heat the entire interior of the pressure vessel as well as the medical waste itself.Such a design allows for full exploitation of the synergistic advantages of frictional heat and superheated steam, effectively improving sterilization efficiency and achieving rapid sterilization and disinfection of medical waste.

[0040] By combining superheated steam, the high-speed mill 3, and the pressure vessel 1, it is possible to solve the problem that a microwave-only sterilization device, in the event of a failure of the high-speed mill 3 or the agitator, requires unconventional measures such as the injection of a disinfectant liquid to carry out emergency disinfection of the contaminated waste that has not yet been sterilized, as well as of the device components such as the blades of the high-speed mill 3, before any repair operation. Failure, which leads to a high risk of infection for operators. It is also possible to solve the problem that a microwave-only sterilization device, during the microwave sterilization process, continuously emits a large quantity of contaminated gases that must be vented, necessitating the addition of a waste gas treatment device and thus creating further secondary pollution in the microwave sterilization process.

[0041] In certain embodiments, the vapor channel includes holes and / or gaps arranged on the separation compartment 2. In the specific implementation, the holes and / or gaps may be arranged on the upper part and / or the side wall and / or the lower part of the separation compartment 2. As a preferred example, the holes and / or gaps are arranged on the upper part of the separation compartment 2, so that the internal space of compartment 203 and the external space of compartment 103 communicate through the holes and / or gaps of the separation compartment 2, thereby reducing the probability of highly agitated medical waste fragments obstructing the vapor channel.During the specific implementation, the openings in the upper part of the compartment can be arranged on the cover of the feed compartment 202, and the gaps in the upper part of the compartment can be arranged between the cover of the feed compartment 202 and the body of the separation compartment 201.

[0042] In some embodiments, the high-speed crusher 3 comprises crushing blades 303 and an electric drive assembly for rotating the crushing blades 303, the crushing blades 303 are arranged at the bottom of the internal space of the compartment 203. The crushing blades 303 are arranged at the bottom of the internal space 203 of the separation compartment 2.Driven in rotation by the electric drive assembly, the grinding blades 303 not only reduce the medical waste present in the internal space of compartment 203 into fine fragments, but also agitate said fragments of medical waste in the internal space of compartment 203, so that the microwaves and superheated steam can come into full contact with them, thus optimally exploiting the synergistic disinfection effect between microwaves and superheated steam, and achieving rapid disinfection and sterilization of medical waste.

[0043] In some embodiments, the electric drive assembly comprises a drive motor 301 and a transmission mechanism 302, the drive motor 301 being located outside the pressure vessel 1, and the transmission mechanism 302 being connected between the drive motor 301 and the grinding blades 303. By way of specific example, the grinding blades 303 may to be mounted on the lower wall of the separation compartment 2 by means of a blade shaft and a bearing. The drive motor 301 can be fixed to the lower face of the pressure vessel 1, and the transmission mechanism 302 can consist of a transmission shaft connected between the power output end of the drive motor 301 and the blade shaft.

[0044] In a particular embodiment, by selecting a high-speed drive motor 301, the grinding blades 303 can be driven at high speed, thus enabling high-speed grinding and accelerated mixing. The rotational speed of the grinding blades 303 of the high-speed mill 3 is generally between 800 and 2000 rpm, whereas the rotational speed of a conventional low-speed mill is generally less than 30 rpm.

[0045] Regarding the adjustment of the rotational speed of the high-speed mill 3, the higher the speed, the greater the frictional heat generated, but the wear on the container wall is also increased; the lower the speed, the lower the frictional heat, and the more limited the wear on the container wall. The present invention, thanks to the arrangement of a separation compartment 2 inside the pressure vessel 1, makes it possible to adjust the rotational speed of the high-speed mill 3 to a higher level, which promotes improved grinding and mixing of medical waste, while generating a greater amount of frictional heat. In a specific embodiment, the rotational speed of the high-speed mill can be set so as not to be less than 1200 rpm.

[0046] In some embodiments, the synergistic sterilization device for medical waste also includes a microwave generator 4, arranged to microwave-irradiate the ground and rapidly stirred medical waste in the internal space of the compartment 203 by the high-speed grinder 3. By combining the work of the high-temperature steam, the high-speed grinder 3, the microwave generator 4 and the pressure vessel 1, the synergistic advantage of friction heating, microwaves and high-temperature steam is fully exploited, which makes it possible to effectively improve the efficiency of sterilization and achieve rapid disinfection of medical waste.By applying the combined disinfection process using frictional heat, microwaves and high-temperature steam proposed by the present invention, the disinfection time of medical waste can be reduced to approximately 5 minutes, much less than the time required for sterilization using only high-temperature steam, only frictional heat or only microwaves.

[0047] In some examples, the microwave generator 4 is installed outside the pressure vessel 1, the pressure vessel 1 is equipped with one or more first microwave guidance orifices 108, the separation compartment 2 is equipped with one or more secondary microwave guidance ports, the microwaves emitted by the microwave generator 4 being introduced into the internal space of the compartment 203 via one or more primary microwave guidance ports 108 and one or more secondary microwave guidance ports. In a particular embodiment, several microwave generators 4 may be arranged outside the side wall of the pressure vessel 1, corresponding to the installation of several primary microwave guidance ports 108 and several secondary microwave guidance ports.

[0048] In some examples, the lid of the feed compartment 202 is connected to the feed door 102, so that the lid of the feed compartment 202 and the feed door 102 open and close in a coordinated manner. By providing coordinated opening and closing of the lid of the feed compartment 202 and the feed door 102, the loading of medical waste is facilitated. In a particular embodiment, the lid of the feed compartment 202 can be fixed to the feed door 102 to achieve coordinated opening and closing, or the lid of the feed compartment 202 and the feed door 102 can be connected by a coordinated opening mechanism to allow this coordinated opening and closing.In other examples, the cover of the feed compartment 202 can also be arranged next to the feed door 102, so that feeding can be carried out by successively opening and closing the feed door 102 and the cover of the feed compartment 202.

[0049] In some examples, the pressure vessel 1 is arranged, on its top or upper side wall, with a first feed port, the feed door 102 is arranged on this first feed port, the separation compartment 2 is arranged, on its top, with a second feed port, the cover of the feed compartment 202 is arranged on this second feed port, the separation compartment 2 is arranged, on its lower part, with a first residue discharge port 204, the first residue discharge door 205 is arranged on the first residue discharge port 204, the pressure vessel 1 is arranged with a second residue discharge port 109 to provide a discharge passage for residues from the first residue discharge port 204, the second residue discharge door 110 is arranged on the second waste discharge opening 109.By applying the aforementioned technical solution, the first feed port and the first waste discharge port 204 are arranged separately, and the second feed port and the second waste discharge port 109 are also arranged separately, which facilitates both the loading and emptying of medical waste, and helps to prevent. the adhesion of medical waste fragments to the feed door 102 and to the second waste discharge door 110 of the pressure vessel 1.

[0050] In some examples, the synergistic sterilization device for medical waste also includes a waste discharge conveyor 5 or a waste discharge chute, the inlet end of the waste discharge conveyor 5 or the waste discharge chute is arranged to extend, via the second waste discharge port 109, into the external space of the compartment 103 in order to receive the waste discharged from the first waste discharge port 204, the waste discharge conveyor 5 or the waste discharge chute serving to discharge the waste to the outside of the pressure vessel 1.By applying the aforementioned technical solution, the second residue discharge port 109 is arranged on the side wall of the pressure vessel 1. This lateral arrangement of the second residue discharge port 109 facilitates the use of the residue discharge conveyor 5 or the residue discharge chute for removing the residue, thus enabling more convenient waste disposal. The residue, after disinfection and sterilization, is discharged to the outside of the pressure vessel 1 through the first residue discharge port 204 and the second residue discharge port 109. This prevents residue fragments from adhering to the second residue discharge door 110 of the pressure vessel 1 and avoids any adverse impact of these fragments on the seal of the second residue discharge door 110.As a prime example, the second residue discharge port 109 is arranged on the side wall of the pressure vessel 1, which facilitates the use of the residue discharge conveyor 5 or the residue discharge chute.

[0051] By way of concrete example, the residue removal conveyor 5 comprises a housing, a residue transport mechanism arranged inside the housing, and a motor for driving the residue transport mechanism. The housing is arranged with a residue inlet 501 and a residue outlet 502, and the motor drives the residue transport mechanism to transport the residue from the residue inlet 501 to the residue outlet 502. In a specific embodiment, the residue transport mechanism may be a screw conveyor, and the residue removal conveyor 5 may be mounted on a trolley 6 to facilitate its movement.

[0052] In some embodiments, the bottom of the pressure vessel 1 is provided with a wastewater discharge orifice 107, the wastewater discharge orifice 107 serves to discharge the wastewater present in the pressure vessel 1.

[0053] In certain embodiments, the pressure vessel 1 is equipped with a waste gas vent 104. The waste gas vent 104 serves to to vent the gases present in the pressure vessel 1, and the residual gas vent 104 can be arranged on the upper or side wall of the pressure vessel 1. In a specific implementation, the residual gas vent 104 and the steam inlet 105 can constitute the same fitting or separate fittings, i.e. the steam inlet 105 and the residual gas vent 104 can be two separate interfaces or combined into a single interface.

[0054] In certain embodiments, the pressure vessel 1 is provided with a water inlet 106 for the introduction of cooling water and / or wash water. The water inlet 106 may be located on the upper or side wall of the pressure vessel 1, and the water inlet 106 is connected to a device for spraying cooling water and / or wash water inside the pressure vessel 1.

[0055] By way of specific example, the pressure vessel 1 comprises a pressure vessel body 101 with a top opening and several feet 111 connected to the underside of the pressure vessel body 101. The top opening of the pressure vessel body 101 constitutes the first feed port, while the wastewater discharge port 107, the steam inlet port 105, and the waste gas discharge port 104 are arranged on the pressure vessel body 101. The water inlet port 106 is arranged on the feed gate 102. The second waste discharge port 109 is arranged on the side wall of the pressure vessel body 101, and the second waste discharge gate 110 serves to open or close the second waste discharge port 109. The feed gate 102 serves to open or close the first feed port.When the feed door 102 and the second residue discharge door 110 are closed, the feed door 102, the second residue discharge door 110, and the pressure vessel body 101 form a sealed internal cavity. In a specific implementation, the feed door 102 and the second residue discharge door 110 may be high-speed opening doors.

[0056] In a specific embodiment, the separation compartment 2 may be an independent container arranged inside the pressure vessel 1, the side wall of which may be superimposed on the side wall of the pressure vessel 1, and a space may also be left between the side wall of the independent container and the side wall of the pressure vessel 1. The separation compartment 2 may also be formed by partitions arranged inside the pressure vessel 1 and by a portion of the wall of the pressure vessel 1.

[0057] By way of a concrete example, the separation compartment 2 is an independent container installed inside the pressure vessel 1. The compartment of Separation 2 also includes a separation compartment body 201 open at the top, the upper opening of the separation compartment body 201 constituting the second feed port, the first residue discharge port 204 is arranged in the lower part of the lower or side wall of the separation compartment body 201, the feed compartment cover 202 opens or closes the second feed port, and the first residue discharge door 205 opens or closes the first residue discharge port 204. When the feed cover 202 and the first residue discharge door 205 are closed, the feed compartment cover 202, the first residue discharge door 205 and the separation compartment body 201 form the internal space of the compartment 203. In a specific implementation, the first residue discharge door 205 may be a motorized door.

[0058] In a specific embodiment, the separation compartment body 201 can be fixed directly or indirectly to the body of the pressure vessel 101. Between the separation compartment 2 and the body of the pressure vessel 101, as well as between the separation compartment 2 and the supply door 102, passages are provided allowing the circulation of high-temperature steam and cooling / cleaning water, ensuring a fluid flow of high-temperature steam and cooling / cleaning water in the space between the inner wall of the pressure vessel 1 and the outer wall of the separation compartment 2.

[0059] In a specific embodiment, the synergistic sterilization device for medical waste also includes a control system and instrumentation valves. The instrumentation valves are used to monitor the operating status of the synergistic sterilization device for medical waste, and the control system is used to control the operation of the synergistic sterilization device for medical waste according to predefined programs or processes.

[0060] The embodiments described above are merely preferred embodiments intended to fully illustrate the present invention, without limiting its scope of protection. Technical equivalents or modifications made by persons skilled in the art based on the present invention also fall within its scope of protection. In this description, references to terms such as "an embodiment," "certain embodiments," "an example," "a particular example," or "certain examples" mean that the features, structures, materials, or special characteristics associated with that embodiment or example are included in at least one embodiment or example of the present invention. In this description, the aforementioned expressions do not necessarily refer to the same embodiment of embodiment or the same example. Furthermore, the characteristics, structures, materials, or features described can be appropriately combined in one or more embodiments or examples. Moreover, those skilled in the art can associate and combine the various embodiments or examples described herein.

Claims

Demands

1. A synergistic sterilization device for medical waste, characterized in that it comprises a pressure vessel (1) and a high-speed grinder (3), said pressure vessel (1) being arranged with a separation compartment (2), said separation compartment (2) dividing the internal cavity of the pressure vessel (1) into an internal compartment space (203) located inside the separation compartment (2) and an external compartment space (103) located outside said separation compartment (2), said internal compartment space (203) being intended to receive medical waste, the upper side wall or the top of said pressure vessel (1) being arranged with an opening and closing feed door (102), the top of said separation compartment (2) being arranged with an opening and closing feed compartment cover (202),the lower part or the lower side wall of said separation compartment (2) being arranged with a first openable and closing waste discharge door (205), the lower part or the side wall of said pressure vessel (1) being arranged with a second openable and closing waste discharge door (110), the second waste discharge door (110) being located lower than the bottom of said separation compartment (2), the high-speed grinder (3) being configured to grind, rapidly agitate and generate heat by friction on the medical waste contained in the internal space of the compartment (203); said pressure vessel (1) being arranged with a steam inlet port (105), said separation compartment (2) being arranged with a steam channel communicating said internal space of the compartment (203) and said external space of the compartment (103).

2. A synergistic medical waste sterilization device according to claim 1, characterized in that said vapor channel comprises holes and / or gaps arranged on said separation compartment (2).

3. A synergistic sterilization device for medical waste according to claim 1, characterized in that said high-speed grinder (3) comprises grinding blades (303) and an electrical drive assembly for driving the rotation of the blades grinding (303), said grinding blades (303) are arranged at the bottom of the internal space of the compartment (203) of said separation compartment (2).

4. A synergistic medical waste sterilization device according to claim 3, characterized in that said electrical drive assembly comprises a drive motor (301) and a transmission mechanism (302), said drive motor (301) is installed outside the pressure vessel (1), said transmission mechanism (302) is connected between said drive motor (301) and said grinding blades (303).

5. A synergistic sterilization device for medical waste according to claim 1, characterized in that said synergistic sterilization device for medical waste further comprises a microwave generator (4) intended to microwave-irradiate the medical waste that has been ground and rapidly agitated by the high-speed grinder in said internal space of the compartment (203).

6. A synergistic medical waste sterilization device according to claim 5, characterized in that said microwave generator (4) is installed outside said pressure vessel (1), said pressure vessel (1) is arranged with one or more first microwave guidance orifices (108), said separation compartment (2) is arranged with one or more second microwave guidance orifices, the microwaves emitted by said microwave generator (4) are introduced into said internal space of the compartment (203) via one or more first microwave guidance orifices (108) and one or more second microwave guidance orifices.

7. A synergistic medical waste sterilization device according to claim 1, characterized in that said cover of the feed compartment (202) is connected to said feed door (102) in such a way that the opening and closing of said cover of the feed compartment (202) are synchronized with those of said feed door (102).

8. A synergistic sterilization device for medical waste according to claim 1, characterized in that the top or upper side wall of said pressure vessel (1) is provided with a first feed opening, said feed door (102) is installed at this first feed opening, the top of said compartment separation compartment (2) is provided with a second feed opening, said feed compartment cover (202) is installed at this second feed opening, the lower part or lower side wall of said separation compartment (2) is arranged with a first discharge opening (204), said first discharge door (205) is installed on the first discharge opening (204), said pressure vessel (1) is arranged with a second discharge opening (109) providing a passage for discharge of residues from said first discharge opening (204), said second discharge door (110) is installed on said second discharge opening (109).

9. A synergistic medical waste sterilization device according to claim 8, characterized in that said synergistic medical waste sterilization device further comprises a residue discharge conveyor (5) or a residue discharge chute, the inlet end of said residue discharge conveyor (5) or of the residue discharge chute extends into the external space of the compartment (103) via said second residue discharge orifice (109) to receive the residue from said first residue discharge orifice (204), said residue discharge conveyor (5) or of the residue discharge chute discharges the residue to the outside of the pressure vessel (1).

10. A synergistic medical waste sterilization device according to claim 1, characterized in that the bottom of said pressure vessel (1) is arranged with a wastewater discharge port (107), said pressure vessel (1) is arranged with a residual gas discharge port (104), and said pressure vessel (1) is arranged with a water inlet port (106) for the introduction of cooling water and / or wash water, said residual gas discharge port (104) and said steam inlet port (105) constitute the same connection or separate connections.

Images