Cooperative disinfection device for medical wastes
By using a built-in partition chamber and a high-speed crusher in the pressure vessel in the medical waste disinfection device, combined with the coordinated heating of high-temperature steam and microwave, the problem of long disinfection time and material debris on the container wall is solved, and rapid and efficient medical waste disinfection is achieved. Sterilization.
Patent Information
- Application Number
- CN202411593582.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2024-12-20
AI Technical Summary
The existing high-temperature steam disinfection, microwave disinfection and friction heat disinfection treatment processes for medical waste have problems such as long disinfection time and low processing efficiency. Especially when a high-speed crusher is installed in a pressure vessel, material fragments will not wear or seal the container wall. Strict problem.
A medical waste collaborative disinfection device was designed, using a pressure vessel built-in partition chamber and a high-speed crusher to crush and agitate medical waste through a high-speed crusher, combining the coordinated heating of high-temperature steam and microwaves, and using the partition chamber to limit the splash and adhesion of debris. Achieve rapid disinfection and sterilization.
It effectively improves the disinfection and sterilization efficiency of medical waste, reduces disinfection time, prevents the impact of material debris on the wear and sealing performance of container walls, and avoids the discharge of bacterial gases and secondary pollution.
Smart Images

Figure CN119158059A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of medical waste treatment, and in particular to a medical waste collaborative disinfection device. Background Art
[0002] In the medical waste disinfection device with built-in crusher, the high-temperature steam disinfection treatment process, microwave disinfection treatment process and friction heat disinfection treatment process are currently the most common non-incineration disinfection treatment processes for medical waste. Regardless of whether a simple high-temperature steam disinfection treatment process, microwave disinfection treatment process or friction heat disinfection treatment process is used, there are problems of long disinfection time and low treatment efficiency.
[0003] Among them, the simple high-temperature steam disinfection treatment process is a highly reliable, zero-exhaust process of bacteria-carrying gas, and the most widely used non-incineration disinfection treatment process. The main problem is that steam heating materials can only be carried out step by step from the outside to the inside, and the internal medical waste requires a long time of heat transfer to be fully heated, which has a great impact on the treatment efficiency. The high-temperature steam disinfection treatment device with a built-in crusher can significantly improve this problem. Among them, the high-temperature steam disinfection treatment device with a built-in low-speed high-torque crusher is used. Since the waste fragments after crushing are still stacked in the sterilization chamber, the high-temperature steam heating materials still need to be heated from the outside to the inside, and the heating and disinfection efficiency problem is not fundamentally solved. The high-temperature steam disinfection treatment device with a built-in high-speed crusher has the problem of wear on the pressure vessel wall by the high-speed rotating material fragments after crushing, and the waste residue after disinfection and sterilization will adhere to the slag outlet and the slag door when the slag is discharged, resulting in the problem of the pressure vessel slag door closing and sealing not being tight. Because of this, from the current literature and actual applications, no solution has been found for the high-temperature steam disinfection treatment process to set a high-speed crusher that can generate sufficient friction heat in the pressure vessel.
[0004] The simple microwave disinfection process is limited by the limited range of microwave radiation heating. Usually, a built-in high-speed crusher is used to crush the medical waste while driving the material fragments to stir quickly to ensure that all medical waste can repeatedly pass through the area where microwave radiation can act, and is evenly heated without leaving dead corners. The main problem is that once the crusher or stirring device fails, it is necessary to take unconventional measures such as spraying disinfectant to perform emergency disinfection on the contaminated medical waste and devices (such as crusher blades) that have not yet been disinfected and sterilized, and then the fault can be repaired, and the operator is at a high risk of infection. In addition, since the simple microwave disinfection device uses a non-pressure container, a large amount of contaminated exhaust gas will be continuously discharged during the microwave disinfection process. Usually, a high-efficiency filtration / adsorption device is used to treat the contaminated exhaust gas before it is discharged, but this will cause the filtration / adsorption device to be contaminated, forming a new secondary pollution source in the microwave disinfection process, and the filtration / adsorption device needs to be disinfected again regularly.
[0005] Simple friction heat disinfection treatment process basically uses a non-pressure container with a built-in high-speed crusher. This solution has similar problems as the simple microwave disinfection treatment process.
[0006] The disinfection process of "combination of microwave and high-temperature steam" is the most efficient, safest and most reliable process known so far. The main feature of this process is that it uses a treatment method of coordinated disinfection of high-temperature steam and microwave, taking advantage of the strong penetration of microwaves into the interior of the material and the ability to directly heat the interior, as well as the wide coverage of high-temperature steam, which heats from the outside to the inside, so that the outer surface and the interior of the material are heated at the same time, achieving the purpose of rapid disinfection and sterilization. Another major advantage of this process is that due to the use of a pressure vessel, compared with a microwave disinfection device or friction heat disinfection treatment using a non-pressure vessel, no bacteria-carrying gas can be discharged during the entire disinfection process, avoiding the risk of secondary contamination caused by the discharge of bacteria-carrying gas caused by the use of a non-pressure vessel for disinfection.
[0007] From the above, it can be seen that the structure of using a high-speed crusher built into a pressure vessel has outstanding advantages, whether it is the synergistic disinfection process of high-temperature steam and friction heat, or the synergistic disinfection process of high-temperature steam, microwave, and friction heat. However, the difficulty in achieving this lies in how to give full play to the respective advantages of high-temperature steam disinfection, friction heat disinfection and microwave radiation disinfection, and solve the key problems of the wear of material fragments on the inner wall of the container during the operation of the high-speed crusher, the adhesion of material fragments to the inlet / outlet port and inlet / out door of the pressure vessel, and the limited range of microwave radiation, and the existence of a dead zone for disinfection.
[0008] In the existing literature, there are descriptions of high-temperature steam sterilization devices with built-in crushers in pressure vessels, such as the patent with publication number US10,512,956B2, which proposes a high-temperature steam sterilization treatment system with a built-in crusher, which includes a pressure vessel and a crusher for sterilizing medical waste. However, the waste residue discharge method of the patent is that the entire pressure vessel is rotated and poured out from the feed port, and a common feed and discharge door is used, which lacks a structural design to solve the adhesion of material fragments. And no consideration is given to the protection scheme for the inner wall of the pressure vessel once the crusher enters a high-speed rotation sufficient to generate friction heat.
[0009] In the existing literature, there are descriptions of microwave and high-temperature steam combined disinfection and sterilization devices, each of which has its own characteristics, and some have obvious shortcomings that affect practical applications. For example, the patent with patent number ZL202022136580.0 proposes a vertical pre-crushing type microwave and high-temperature steam combined disinfection treatment device, which can achieve the purpose of microwave and high-temperature steam combined disinfection and sterilization under the premise of first crushing. However, due to the following problems in the device: the crusher in the device only has a crushing function, and there is no stirring function for the crushed material fragments. After the material is crushed and falls into the sterilization chamber, it will remain motionless, and there is a dead angle of microwave radiation. It is necessary to set another stirring device in the cabin to stir the waste fragments in the sterilization chamber or rotate the entire cabin to solve the problem of uneven microwave distribution. Its structure is relatively complex and the cost is high.
[0010] The patent application with publication number CN106670214A proposes a simple microwave treatment device with a built-in pulverizer, which includes a tank body, a built-in crusher and a microwave generator. Since the microwave treatment device adopts a simple microwave treatment process, the microwave treatment device obviously has almost all the problems of the typical simple microwave disinfection treatment device mentioned above, and the microwave treatment device also has problems such as medical waste fragments affecting the sealing performance of its tank body. A high-speed crusher is set in the pressure vessel of the high-temperature steam disinfection treatment device, or a high-speed crusher is set in the pressure vessel of the microwave and high-temperature steam coordinated disinfection device, which can not only quickly stir the crushed medical waste fragments, effectively improve the efficiency of steam heating and microwave disinfection, but also generate friction heat, further improving the disinfection and sterilization efficiency. The built-in high-speed crusher can realize the three functions of crushing, stirring and generating friction heat to heat the material, but the high-speed moving waste fragments will damage the container wall. For non-pressure containers, the damage to the inner wall will not bring safety hazards, but if there is continuous damage to the inner wall of the pressure vessel, the safety hazard will be very prominent and unacceptable. In addition, the waste fragments splashing around in the container during the treatment process and the discharge of the waste residue fragments after treatment will inevitably adhere to the inlet and outlet doors of the pressure vessel, making it difficult to close and seal the pressure vessel door, which is also a prominent problem. Summary of the invention
[0011] The purpose of the present invention is to provide a medical waste coordinated disinfection device to alleviate or eliminate the above-mentioned problems.
[0012] A medical waste collaborative disinfection device described in the present invention includes a pressure vessel and a high-speed crusher. A partition cabin is provided in the pressure vessel, and the partition cabin divides the inner cavity of the pressure vessel into an inner cabin space located inside the partition cabin and an outer cabin space located outside the partition cabin. The inner cabin space is used to accommodate medical waste. An openable and closable feeding door is provided on the upper side wall or top of the pressure vessel, and an openable and closable feeding hatch cover is provided on the upper part of the partition cabin. A first openable and closable slag discharge door is provided on the bottom or lower side wall of the partition cabin, and a second openable and closable slag discharge door is provided on the bottom or side wall of the pressure vessel, and the position of the second slag discharge door is lower than the bottom of the partition cabin. The high-speed crusher is configured to crush, quickly stir and generate friction heat for medical waste in the inner cabin space; a steam inlet is provided on the pressure vessel, and a steam channel connecting the inner cabin space and the outer cabin space is provided on the partition cabin.
[0013] Optionally, the steam channel includes holes and / or gaps provided on the compartment.
[0014] Optionally, the high-speed crusher includes a crushing blade and an electric drive assembly for driving the crushing blade to rotate, and the crushing blade is arranged at the bottom of the space inside the compartment.
[0015] Optionally, the electric drive assembly includes a drive motor and a transmission mechanism, the drive motor is arranged outside the pressure vessel, and the transmission mechanism is connected between the drive motor and the crushing blade.
[0016] Optionally, the medical waste collaborative disinfection device also includes a microwave generator capable of irradiating microwaves to the medical waste crushed and rapidly stirred by the high-speed crusher in the space within the cabin.
[0017] Optionally, the microwave generator is installed on the outside of the pressure vessel, one or more first microwave inlet ports are provided on the pressure vessel, and one or more second microwave inlet ports are provided on the partition cabin, and the microwaves emitted by the microwave generator are introduced into the space inside the cabin through one or more first microwave inlet ports and one or more second microwave inlet ports.
[0018] Optionally, the feed hatch cover and the feed door are connected so that the feed hatch cover and the feed door open and close in conjunction.
[0019] Optionally, a first feed port is provided at the top or upper side wall of the pressure vessel, the feed door is provided at the first feed port, a second feed port is provided at the top of the compartment, the feed hatch cover is provided at the second feed port, a first waste slag discharge port is provided at the bottom or lower side wall of the compartment, the first slag discharge door is provided at the first waste slag discharge port, a second waste slag discharge port providing a discharge channel for the waste slag discharged from the first waste slag discharge port is provided on the pressure vessel, and the second slag discharge door is provided at the second waste slag discharge port.
[0020] Optionally, the medical waste collaborative disinfection device also includes a slag conveyor or a slag chute, the waste residue input end of the slag conveyor or the slag chute can extend into the space outside the cabin through the second waste residue discharge outlet to receive the waste residue discharged from the first waste residue discharge outlet, and the slag conveyor or the slag chute is used to output the waste residue to the outside of the pressure vessel.
[0021] Optionally, a wastewater outlet is provided at the bottom of the pressure vessel, a waste gas outlet is provided on the pressure vessel, a water inlet for inputting cooling water and / or cleaning water is provided on the pressure vessel, and the waste gas outlet and the steam inlet are the same interface or different interfaces.
[0022] The present invention has the following characteristics: The use of pressure vessels as tank bodies avoids the problem that the common simple microwave disinfection treatment device or simple friction heat disinfection treatment device uses non-pressure vessels as tank bodies, and the contaminated gas (including contaminated steam) generated during the treatment process needs to be continuously discharged. A compartment is set in the pressure vessel, and the medical waste is always in the compartment during the whole process of disinfection and sterilization. When the high-speed crusher is running, the medical waste fragments stirred at high speed are confined in the compartment, and the medical waste fragments will neither damage the inner wall of the pressure vessel and the sensors in the pressure vessel, nor adhere to the feed door and the first feed port, which will adversely affect the closing and sealing of the feed door and the first feed port; nor will they adhere to the second waste residue discharge port and the second slag discharge door, which will adversely affect the closing and sealing of the second slag discharge door and the second waste residue discharge port.
[0023] The disinfected and sterilized waste slag can be discharged to the outside of the pressure vessel through the first waste slag discharge port and the second waste slag discharge port, which can prevent the waste slag fragments from adhering to the second slag discharge door of the pressure vessel during the slag discharge process, thereby preventing the waste slag fragments from adversely affecting the sealing performance of the second slag discharge door.
[0024] The first feed inlet and the first waste residue discharge outlet are arranged separately, and the second feed inlet and the second waste residue discharge outlet are arranged separately, so that the loading and discharging of medical waste are more convenient.
[0025] A slag conveyor or a slag chute is provided. During the discharging process, when the first slag discharge door is opened and the waste slag of medical waste falls out, it can directly fall into the slag conveyor or the slag chute and be sent out of the disinfection device through the slag discharge conveyor or the slag chute, thereby preventing the waste slag from falling into the disinfection device and adhering to the second waste slag discharge port when being removed, thereby affecting the normal closing and sealing of the second slag discharge door and the second waste slag discharge port.
[0026] Through the above-mentioned innovative design, the present invention successfully solves the problem that when the built-in high-speed crusher runs at a high speed, the material fragments stirred at high speed after crushing damage the inner wall of the pressure vessel, and the fragments adhere to the feed port / door and the discharge port / door, resulting in the feed door or discharge door on the pressure vessel not closing tightly, making it difficult to discharge the waste slag.
[0027] Using a high-speed crusher (usually with a speed of 800-2000 rpm) to crush and quickly stir the medical waste in the compartment can not only generate friction heat through the friction between the blade and the material, the friction between the materials, and the friction between the materials and the compartment wall, which can promote the rapid heating of the medical waste. It also enables high-temperature steam and microwaves to more effectively heat and disinfect the rapidly stirred material fragments. This design can give full play to the synergistic heating advantages of friction heat, microwaves and high-temperature steam, effectively improve the sterilization efficiency, and achieve rapid disinfection and sterilization of medical waste. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic diagram of the structure of the medical waste collaborative disinfection device described in some embodiments.
[0029] Among them, 1-pressure vessel; 2-compartment compartment; 3-high-speed crusher; 4-microwave generator; 5-slag conveyor; 6-trolley; 101-pressure vessel body; 102-feeding door; 103-outside cabin space; 104-waste gas outlet; 105-steam inlet; 106-water inlet; 107-waste water outlet; 108-first microwave inlet; 109-second waste residue outlet; 110-second residue outlet; 111-supporting foot; 201- compartment body; 202- feed hatch cover; 203- compartment space; 204- first waste slag discharge port; 205- first slag discharge door; 301-driving motor; 302-transmission mechanism; 303-crushing blade; 501-waste residue import; 502-waste residue export. DETAILED DESCRIPTION
[0030] The following will describe the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.
[0031] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.
[0032] like Figure 1 A medical waste collaborative disinfection device shown in the figure includes a pressure vessel 1 and a high-speed crusher 3. A partition cabin 2 is arranged in the pressure vessel 1. The partition cabin 2 divides the inner cavity of the pressure vessel 1 into an inner cabin space 203 located inside the partition cabin 2 and an outer cabin space 103 located outside the partition cabin 2. The inner cabin space 203 is used to accommodate medical waste. An openable and closable feed door 102 is arranged on the upper side wall or top of the pressure vessel 1, an openable and closable feed hatch cover 202 is arranged on the upper part of the partition cabin 2, a first openable and closable slag discharge door 205 is arranged on the bottom or lower side wall of the partition cabin 2, and a second openable and closable slag discharge door 110 is arranged on the bottom or side wall of the pressure vessel 1. The position of the second slag discharge door 110 is lower than the bottom of the partition cabin 2. The high-speed crusher 3 is configured to crush the medical waste in the inner cabin space 203; a steam inlet 105 is arranged on the pressure vessel 1, and a steam channel connecting the inner cabin space 203 and the outer cabin space 103 is arranged on the partition cabin 2.
[0033] By adopting the above-mentioned medical waste coordinated disinfection device, by arranging a compartment 2 inside the pressure vessel 1, using the compartment 2 to form an independent cabin space 203, separating the area in the pressure vessel 1 where medical waste is loaded from other areas, using the cabin space 203 to load medical waste, and confining the medical waste inside the compartment 2, it is possible to effectively prevent the medical waste from splashing and overflowing into the cabin space 103 outside the compartment 2 during the high-speed crushing process. When the high-speed crusher 3 is running, the medical waste fragments that are stirred at high speed are confined in the compartment 2, so that the medical waste fragments will neither damage the inner wall of the pressure vessel 1 and the sensors inside the pressure vessel 1, nor adhere to the feed door 102 and the second slag discharge door 110 of the pressure vessel 1, which can prevent the medical waste fragments from adversely affecting the sealing performance of the feed door 102 and the second slag discharge door 110, so that the pressure vessel 1 can better achieve and maintain the internal high pressure, thereby ensuring the heating effect of the medical waste and achieving rapid disinfection and sterilization of the medical waste.
[0034] In the above-mentioned medical waste coordinated disinfection device, by providing a steam inlet 105, high-temperature steam can be introduced into the outer space 103 from the outside, and the high-temperature steam in the outer space 103 can enter the inner space 203 through the steam channel. The high-speed crusher 3 is used to crush and stir the medical waste in the compartment 2, so that the high-temperature steam can more fully act on the medical waste crushed by the high-speed crusher in the compartment, so that the high-temperature steam can heat and disinfect the entire pressure vessel and the medical waste. This design can give full play to the advantages of the coordinated disinfection of friction heat and high-temperature steam, effectively improve the sterilization efficiency, and achieve rapid disinfection and sterilization of medical waste.
[0035] The high-temperature steam, high-speed crusher 3 and pressure vessel 1 can be used together to solve the problem that when a high-speed crusher 3 or agitator fails in a simple microwave disinfection and sterilization device, it is necessary to take unconventional measures such as spraying disinfectant to perform emergency disinfection on the sterile waste and devices such as the blade of the high-speed crusher 3 that have not yet been disinfected, and then the fault can be repaired, which puts the operator at a high risk of infection. It can also solve the problem that a large amount of sterile exhaust gas will be continuously discharged during the microwave disinfection process of a simple microwave disinfection device, and an exhaust gas treatment device needs to be added, forming a new secondary pollution in the microwave disinfection process.
[0036] In some embodiments, the steam passage includes holes and / or gaps arranged on the compartment 2. In a specific implementation, the holes and / or gaps can be arranged on the top and / or side walls and / or bottom of the compartment 2. As a preferred example, the holes and / or gaps are arranged on the top of the compartment 2, and the holes and / or gaps on the compartment 2 are used to connect the cabin space 203 and the cabin space 103, which can reduce the possibility of medical waste fragments stirred at high speed blocking the steam passage. In a specific implementation, the holes on the top of the compartment can be arranged on the feed hatch cover 202, and the gaps on the top of the compartment can be arranged between the feed hatch cover 202 and the compartment body 201.
[0037] In some embodiments, the high-speed crusher 3 includes a crushing blade 303 and an electric drive assembly for driving the crushing blade 303 to rotate, and the crushing blade 303 is arranged at the bottom of the cabin space 203. The crushing blade 303 is arranged at the bottom of the cabin space 203 of the compartment 2, and the crushing blade 303 is driven to rotate by the electric drive assembly, which can not only crush the medical waste in the cabin space 203 into small fragments, but also stir the medical waste fragments in the cabin space 203, so that microwaves and high-temperature steam can fully contact the medical waste fragments, give full play to the synergistic disinfection advantages of microwaves and high-temperature steam, and realize rapid disinfection and sterilization of medical waste.
[0038] In some embodiments, the electric drive assembly includes a drive motor 301 and a transmission mechanism 302, the drive motor 301 is arranged outside the pressure vessel 1, and the transmission mechanism 302 is connected between the drive motor 301 and the crushing blade 303. As a specific example, the crushing blade 303 can be installed on the bottom wall of the compartment 2 through a blade shaft and a bearing, the drive motor 301 can be fixedly connected to the lower side of the pressure vessel 1, and the transmission mechanism 302 can be a transmission shaft connected between the power output end of the drive motor 301 and the blade shaft.
[0039] In specific implementation, by selecting a high-speed drive motor 301 to drive the crushing blade 303 to operate at high speed, high-speed crushing and rapid stirring can be achieved. The rotation speed of the crushing blade 303 of the high-speed crusher 3 is usually around 800-2000 rpm, while the rotation speed of an ordinary low-speed crusher is usually below 30 rpm.
[0040] Regarding the setting of the rotation speed of the high-speed crusher 3, generally, the higher the rotation speed, the greater the friction heat generated, and the greater the wear on the container wall; the lower the rotation speed, the smaller the friction heat generated, and the smaller the wear on the container wall. The present invention sets a partition 2 inside the pressure vessel 1, so that the rotation speed of the high-speed crusher 3 can be set higher, which helps to improve the crushing and stirring effect of medical waste and can also generate more friction heat. In specific implementation, the rotation speed of the high-speed crusher can be set to not less than 1200 rpm.
[0041] In some embodiments, the medical waste collaborative disinfection device also includes a microwave generator 4 that can radiate microwaves to the medical waste that is crushed and rapidly stirred by the high-speed crusher 3 in the cabin space 203. Through the cooperation of high-temperature steam, high-speed crusher 3, microwave generator 4 and pressure vessel 1, the advantages of friction heat, microwave and high-temperature steam synergistic heating can be fully utilized, the sterilization efficiency can be effectively improved, and the rapid disinfection and sterilization of medical waste can be achieved. The combined disinfection process of medical waste friction heat, microwave and high-temperature steam proposed by the present invention can shorten the disinfection time of medical waste to about 5 minutes, which is much lower than the disinfection and sterilization time required by a single high-temperature steam disinfection process, a single friction heat disinfection process or a single microwave disinfection process.
[0042] In some embodiments, the microwave generator 4 is installed on the outside of the pressure vessel 1, the pressure vessel 1 is provided with one or more first microwave introduction ports 108, the compartment 2 is provided with one or more second microwave introduction ports, and the microwaves emitted by the microwave generator 4 are introduced into the compartment space 203 through the one or more first microwave introduction ports 108 and the one or more second microwave introduction ports. In a specific implementation, multiple microwave generators 4 can be installed on the outside of the side wall of the pressure vessel 1, and multiple first microwave introduction ports 108 and multiple second microwave introduction ports are provided accordingly.
[0043] In some embodiments, the feed hatch cover 202 is connected to the feed door 102 so that the feed hatch cover 202 and the feed door 102 are opened and closed in linkage. By setting the feed hatch cover 202 and the feed door 102 that are opened and closed in linkage, it is convenient to load medical waste. During specific implementation, the feed hatch cover 202 can be fixedly connected to the feed door 102 to realize linkage opening and closing, and the feed hatch cover 202 and the feed door 102 can also be connected by a linkage door opening mechanism to realize linkage opening and closing. In other embodiments, the feed hatch cover 202 can also be arranged beside the feed door 102, and the feeding can be completed by successively opening and closing the feed door 102 and the feed hatch cover 202.
[0044] In some embodiments, the top or upper side wall of the pressure vessel 1 is provided with a first feed port, the feed door 102 is provided at the first feed port, the top of the compartment 2 is provided with a second feed port, the feed hatch cover 202 is provided at the second feed port, the bottom of the compartment 2 is provided with a first waste residue discharge port 204, the first slag discharge door 205 is provided at the first waste residue discharge port 204, the pressure vessel 1 is provided with a second waste residue discharge port 109 that provides a discharge channel for the waste residue discharged from the first waste residue discharge port 204, and the second slag discharge door 110 is provided at the second waste residue discharge port 109. With the above technical solution, the first feed port and the first waste residue discharge port 204 are separately provided, and the second feed port and the second waste residue discharge port 109 are separately provided, so that the loading and discharging of medical waste are more convenient, and it is also helpful to prevent medical waste fragments from adhering to the feed door 102 and the second slag discharge door 110 of the pressure vessel 1.
[0045] In some embodiments, the medical waste collaborative disinfection device further includes a slag conveyor 5 or a slag chute, and the slag input end of the slag conveyor 5 or the slag chute can extend into the outer space 103 through the second slag discharge port 109 to receive the slag discharged from the first slag discharge port 204, and the slag conveyor 5 or the slag chute is used to output the slag to the outside of the pressure vessel 1. Using the above technical solution, the second slag discharge port 109 is set on the side wall of the pressure vessel 1, and the second slag discharge port 109 set laterally provides convenience for using the slag conveyor 5 or the slag chute to discharge the slag, and can discharge the slag more conveniently. The sterilized waste slag is discharged to the outside of the pressure vessel 1 through the first slag discharge port 204 and the second slag discharge port 109, which can prevent the waste slag fragments from adhering to the second slag discharge door 110 of the pressure vessel 1, and can prevent the medical waste fragments from adversely affecting the sealing performance of the second slag discharge door 110. As a preferred example, the second waste slag discharge port 109 is arranged on the side wall of the pressure vessel 1, which can facilitate the use of the slag conveyor 5 or the slag chute.
[0046] As a specific example, the slag conveyor 5 includes a shell, a waste slag conveying mechanism disposed in the shell, and a motor for driving the waste slag conveying mechanism. The shell is provided with a waste slag inlet 501 and a waste slag outlet 502. The motor drives the waste slag conveying mechanism to convey the waste slag at the waste slag inlet 501 to the waste slag outlet 502. In a specific implementation, the waste slag conveying mechanism can adopt a screw conveying mechanism, and the slag conveyor 5 can be installed on a cart 6 to facilitate the movement of the slag conveyor 5.
[0047] In some embodiments, a wastewater discharge port 107 is disposed at the bottom of the pressure vessel 1 , and the wastewater discharge port 107 is used to discharge wastewater in the pressure vessel 1 .
[0048] In some embodiments, the pressure vessel 1 is provided with an exhaust gas outlet 104. The exhaust gas outlet 104 is used to discharge the exhaust gas in the pressure vessel 1, and the exhaust gas outlet 104 can be provided on the top wall or the side wall of the pressure vessel 1. In a specific implementation, the exhaust gas outlet 104 and the steam inlet 105 are the same interface or different interfaces, that is, the steam inlet 105 and the exhaust gas outlet 104 can be two separate interfaces, or can be combined into one interface.
[0049] In some embodiments, a water inlet 106 for inputting cooling water and / or cleaning water is provided on the pressure vessel 1. The water inlet 106 can be provided on the top wall or the side wall of the pressure vessel 1, and the water inlet 106 is connected to the cooling water spraying device and / or the cleaning water spraying device in the pressure vessel 1.
[0050] As a specific example, the pressure vessel 1 includes a pressure vessel body 101 with an open upper side and a plurality of legs 111 connected to the lower side of the pressure vessel body 101. The upper side of the pressure vessel body 101 is the first feed port, the wastewater discharge port 107, the steam inlet 105 and the waste gas discharge port 104 are arranged on the pressure vessel body 101, the water inlet 106 is arranged on the feed door 102, the second waste residue discharge port 109 is arranged on the side wall of the pressure vessel body 101, the second slag discharge port 110 is used to open or close the second waste residue discharge port 109, the feed door 102 is used to open or close the first feed port, and when the feed door 102 and the second slag discharge door 110 are closed, the feed door 102, the second slag discharge door 110 and the pressure vessel body 101 form a closed inner cavity. In specific implementation, the feed door 102 and the second slag discharge door 110 can be quick-opening doors.
[0051] In a specific implementation, the compartment 2 may be an independent container disposed inside the pressure vessel 1, the side wall of the independent container may overlap the side wall of the pressure vessel 1, and a gap may be left between the side wall of the independent container and the side wall of the pressure vessel 1. The compartment 2 may also be surrounded by a partition plate disposed inside the pressure vessel 1 and a part of the container wall of the pressure vessel 1.
[0052] As a specific example, the compartment 2 is an independent container arranged inside the pressure vessel 1, and the compartment 2 further comprises a compartment body 201 with an upper opening, the upper opening of the compartment body 201 is the second feed port, the first waste slag discharge port 204 is arranged at the lower part of the bottom wall or the side wall of the compartment body 201, the feed hatch cover 202 is used to open or close the second feed port, the first slag discharge door 205 is used to open or close the first waste slag discharge port 204, and when the feed hatch cover 202 and the first slag discharge door 205 are closed, the feed hatch cover 202, the first slag discharge door 205 and the compartment body 201 enclose a compartment space 203. In specific implementation, the first slag discharge door 205 can be an electric door.
[0053] In specific implementation, the compartment body 201 can be directly or indirectly fixedly connected to the pressure vessel body 101. Channels for high-temperature steam and cooling / washing water are provided between the compartment 2 and the pressure vessel body 101 and between the compartment 2 and the feed door 102, which can ensure that the high-temperature steam and cooling / washing water can flow smoothly in the space between the inner wall of the pressure vessel 1 and the outer wall of the compartment 2.
[0054] In specific implementation, the medical waste collaborative disinfection device also includes a control system and an instrument valve. The instrument valve is used to monitor the operating status of the medical waste collaborative disinfection device, and the control system is used to control the operation of the medical waste collaborative disinfection device according to a preset program or process.
[0055] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or changes made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. In the description of this specification, the description of reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics of 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. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.
Claims
1. A medical waste collaborative disinfection device, characterized in that: The invention comprises a pressure vessel (1) and a high-speed crusher (3), wherein a compartment (2) is arranged inside the pressure vessel (1), and the compartment (2) divides the inner cavity of the pressure vessel (1) into an inner compartment space (203) located inside the compartment (2) and an outer compartment space (103) located outside the compartment (2), wherein the inner compartment space (203) is used to accommodate medical waste, and an openable and closable feed door (102) is arranged on the upper side wall or top of the pressure vessel (1), an openable and closable feed hatch cover (202) is arranged on the upper part of the compartment (2), and the bottom of the compartment (2) is provided with a cover for opening and closing the feed hatch. The upper or lower side wall of the pressure vessel (1) is provided with a first slag discharge door (205) that can be opened and closed, the bottom or side wall of the pressure vessel (1) is provided with a second slag discharge door (110) that can be opened and closed, the second slag discharge door (110) being located lower than the bottom of the compartment (2), the high-speed crusher (3) being configured to crush, quickly stir and generate friction heat for the medical waste in the compartment space (203); the pressure vessel (1) is provided with a steam inlet (105), and the compartment (2) is provided with a steam passage that connects the compartment space (203) and the compartment space (103).
2. The medical waste collaborative disinfection device according to claim 1, characterized in that: The steam channel comprises holes and / or gaps arranged on the compartment (2).
3. The medical waste coordinated disinfection device according to claim 1, characterized in that: The high-speed crusher (3) comprises a crushing blade (303) and an electric drive assembly for driving the crushing blade (303) to rotate, and the crushing blade (303) is arranged at the bottom of the space (203) inside the compartment (2).
4. The medical waste coordinated disinfection device according to claim 3, characterized in that: The electric drive assembly comprises a drive motor (301) and a transmission mechanism (302); the drive motor (301) is arranged outside the pressure vessel (1); and the transmission mechanism (302) is connected between the drive motor (301) and the crushing blade (303).
5. The medical waste coordinated disinfection device according to claim 1, characterized in that: The medical waste coordinated disinfection device also includes a microwave generator (4) capable of irradiating microwaves on the medical waste that has been crushed and rapidly stirred by the high-speed crusher in the cabin space (203).
6. The medical waste coordinated disinfection device according to claim 5, characterized in that: The microwave generator (4) is installed on the outside of the pressure vessel (1); the pressure vessel (1) is provided with one or more first microwave introduction ports (108); the partition cabin (2) is provided with one or more second microwave introduction ports; the microwaves emitted by the microwave generator (4) are introduced into the cabin space (203) via the one or more first microwave introduction ports (108) and the one or more second microwave introduction ports.
7. The medical waste coordinated disinfection device according to claim 1, characterized in that: The feed hatch cover (202) is connected to the feed door (102) so that the feed hatch cover (202) and the feed door (102) can be opened and closed in a coordinated manner.
8. The medical waste coordinated disinfection device according to claim 1, characterized in that: The top or upper side wall of the pressure vessel (1) is provided with a first feed inlet, the feed door (102) is provided at the first feed inlet, the top of the compartment (2) is provided with a second feed inlet, the feed hatch cover (202) is provided at the second feed inlet, the bottom or lower side wall of the compartment (2) is provided with a first waste slag discharge outlet (204), the first slag discharge door (205) is provided at the first waste slag discharge outlet (204), the pressure vessel (1) is provided with a second waste slag discharge outlet (109) for providing a discharge channel for waste slag discharged from the first waste slag discharge outlet (204), and the second slag discharge door (110) is provided at the second waste slag discharge outlet (109).
9. The medical waste coordinated disinfection device according to claim 8, characterized in that: The medical waste collaborative disinfection device further comprises a slag discharge conveyor (5) or a slag discharge chute, wherein the slag discharge conveyor (5) or the slag discharge chute has a slag discharge input end that can extend into the outer space (103) through the second slag discharge outlet (109) to receive the slag discharged from the first slag discharge outlet (204), and the slag discharge conveyor (5) or the slag discharge chute is used to output the slag to the outside of the pressure vessel (1).
10. The medical waste coordinated disinfection device according to claim 1, characterized in that: The bottom of the pressure vessel (1) is provided with a wastewater discharge port (107), the pressure vessel (1) is provided with a waste gas discharge port (104), the pressure vessel (1) is provided with a water inlet (106) for inputting cooling water and / or cleaning water, and the waste gas discharge port (104) and the steam inlet (105) are the same interface or different interfaces.
Citation Information
Patent Citations
Solid medical waste treatment device
CN106670214A
Medical waste microwave and high-temperature steam combined disinfection treatment device
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System and methods for conversion of biohazard to municipal waste
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