Medical waste disposal apparatus and medical waste disposal method

Abstract

The application discloses a medical waste disposal device, comprising a treatment container, a friction heat generation system, a temperature control system and a discharge system; the friction heat generation system comprises a motor, a transmission mechanism, a friction component and a variable frequency control system, the motor is connected with the friction component through the transmission mechanism, the variable frequency control system is electrically connected with the motor, and is used for controlling the rotation speed of the friction component to periodically fluctuate in a non-sine wave form above and below a basic rotation speed; the temperature control system comprises a temperature sensor and a PID controller, the temperature sensor is arranged in the treatment cavity, and the PID controller is electrically connected with the temperature sensor and the variable frequency control system; the variable frequency control system is configured to automatically adjust the rotation speed fluctuation range and the fluctuation period according to the treatment cavity temperature gradient collected by the temperature sensor, and automatically match a corresponding variable speed strategy according to the density type of the medical waste. The application also discloses a medical waste treatment method suitable for the medical waste disposal device.

Description

Technical Field

[0001] This invention relates to the field of medical waste harmless treatment technology, specifically to a medical waste disposal device and a medical waste treatment method applicable to the device. Background Technology

[0002] Medical waste, as a special type of waste with infectiousness, toxicity, and other hazards, is directly related to public health safety and sustainable ecological environment development through its safe and efficient disposal. Frictional heat treatment technology, with its significant advantages of low secondary pollution, low energy consumption, and high treatment efficiency, has gradually replaced traditional incineration technology and become one of the core technologies for the harmless treatment of medical waste. This technology generates high temperatures through mechanical friction between friction components and medical waste, achieving the inactivation of bacteria and viruses and the destruction of waste. However, its practical application still faces key technological bottlenecks.

[0003] The core deficiency of existing friction-heating medical waste disposal equipment lies in its limited speed control function, making it difficult to adapt to complex disposal conditions. On the one hand, traditional equipment often uses fixed speed or simple linear speed regulation, resulting in uneven temperature distribution on the surface of friction components and frequent local overheating. This not only leads to poor uniformity in medical waste treatment (some areas fail to meet the harmless treatment temperature standard) but also increases ineffective energy consumption, accelerates the aging of friction components, and significantly shortens the equipment's lifespan. On the other hand, existing equipment lacks the ability to adaptively identify and match medical waste types. It employs a uniform treatment strategy for high-density medical waste (such as metal instruments) and low-density medical waste (such as medical plastics and gauze), resulting in low processing efficiency and failing to meet diverse disposal needs.

[0004] Furthermore, while some existing devices attempt to adjust rotation speed based on temperature, they only employ simple speed increase / decrease logic, failing to incorporate precise feedback from temperature gradients for dynamic control, nor do they utilize variable speed modes that facilitate heat dissipation. Therefore, they cannot fundamentally solve the core problem of uneven temperature distribution. Consequently, developing a medical waste disposal device with adaptive operating condition recognition, precise temperature control, and efficient variable speed modes has become a pressing technical challenge in this field. Summary of the Invention

[0005] The medical waste disposal equipment of this application embodiment includes a processing container, a frictional heat generation system, a temperature control system, and a discharge system. The processing container has a processing chamber for containing medical waste. The frictional heat generation system includes a motor, a transmission mechanism, friction components, and a frequency conversion control system. The motor is connected to the friction components through the transmission mechanism. The frequency conversion control system is electrically connected to the motor and is used to control the rotational speed of the friction components to fluctuate periodically in a non-sinusoidal wave form around a base speed. The friction components are disposed inside the processing chamber to generate high temperatures from friction of the medical waste, thereby achieving harmless treatment. The temperature control system includes a temperature sensor and a PID controller. The temperature sensor is disposed inside the processing chamber to collect temperature distribution data of the processing chamber. The PID controller is electrically connected to both the temperature sensor and the frequency conversion control system. The frequency conversion control system is configured to automatically adjust the rotational speed fluctuation range and fluctuation period according to the temperature gradient of the processing chamber collected by the temperature sensor, and automatically match the corresponding speed change strategy according to the density type of the medical waste.

[0006] In some embodiments, the frequency conversion control system includes a programmable frequency converter and a control unit. The control unit has a preset speed conversion program, and the base speed, speed fluctuation range, and fluctuation period parameters can be programmably set.

[0007] In some embodiments, the frequency conversion control system is configured to automatically increase the rotational speed fluctuation of the friction component to ±150 rpm when the temperature gradient of the processing cavity exceeds 20°C / cm; and to automatically reduce the rotational speed fluctuation of the friction component to ±50 rpm when the temperature gradient of the processing cavity is below 5°C / cm.

[0008] In some embodiments, the frequency conversion control system is configured to control the rotational speed fluctuation period of the friction component to be automatically adjusted between 20 and 40 seconds according to the density type of the medical waste.

[0009] In some embodiments, the non-sinusoidal periodic fluctuation specifically refers to the following: the rotational speed of the friction component accelerates to v1 within t1 seconds, maintains this rotational speed for t2 seconds, then decelerates to v2 within t3 seconds, maintains this rotational speed for t2 seconds, and repeats this cycle; where t1, t2, and t3 are time parameters, v1 is the target rotational speed after the base rotational speed is increased, and v2 is the target rotational speed after the base rotational speed is decreased.

[0010] In some embodiments, the frequency conversion control system is configured to identify the density type of the medical waste by pre-running at a specific speed.

[0011] In some embodiments, the motor has a power of 75kW, and the PID controller controls the temperature of the processing chamber within the range of 100-150°C.

[0012] In some embodiments, the temperature sensor is a high-precision temperature sensor used to accurately collect temperature data at different locations in the processing cavity in order to calculate the temperature gradient.

[0013] The medical waste treatment method of this application is applicable to any of the medical waste disposal devices described above, and includes the following steps: S10. The medical waste disposal equipment is started, and the medical waste is put into the processing chamber. The frequency conversion control system controls the motor to pre-run at a specific speed, collects the torque feedback data of the motor, identifies the density type of the medical waste, and matches the basic speed, initial fluctuation range and initial fluctuation period of the corresponding friction component. S20. The PID controller collects temperature distribution data of the processing chamber through the temperature sensor and calculates the temperature gradient of the processing chamber. S30. The frequency conversion control system performs adaptive speed adjustment according to the temperature gradient, and controls the rotation speed of the friction component to fluctuate periodically around the base rotation speed in a non-sinusoidal wave form. If the temperature gradient exceeds 20℃ / cm, the rotation speed fluctuation amplitude of the motor is adjusted to ±150rpm. If the temperature gradient is lower than 5℃ / cm, the rotation speed fluctuation amplitude of the motor is adjusted to ±50rpm. The rotation speed fluctuation period of the friction component is dynamically adjusted between 20-40 seconds according to the density type of the medical waste. S40. Friction components generate frictional heat through periodic variable speed rotation. High temperature achieves harmless treatment of medical waste. After treatment, the waste is discharged through the discharge system. Repeat steps S20-S40 until medical waste disposal is complete and the equipment is shut down.

[0014] In some embodiments, the non-sinusoidal periodic fluctuation in step S30 specifically refers to the following: the rotational speed of the friction component accelerates to v1 within t1 seconds, is maintained for t2 seconds, decelerates to v2 within t3 seconds, and is maintained for t2 seconds, and the cycle repeats.

[0015] Compared with the prior art, the medical waste treatment equipment and the medical waste treatment method applied to the medical waste treatment equipment of this application have the following beneficial effects: 1. Achieve adaptive and precise control under operating conditions: Through a dual feedback mechanism of "low-speed pre-running torque recognition + real-time temperature gradient monitoring", it automatically distinguishes the density type of medical waste and matches the optimal speed change strategy without manual intervention, adapting to the diverse disposal needs of high-density and low-density medical waste, and improving processing efficiency by more than 30%.

[0016] 2. Significantly improved temperature distribution uniformity: The non-sinusoidal periodic speed-changing mode is adopted, combined with dynamic adjustment of the fluctuation amplitude based on the temperature gradient, which provides sufficient heat diffusion time for frictional heat generation, effectively alleviating local overheating. The temperature uniformity error inside the treatment chamber is controlled within ±5℃, and the medical waste harmless treatment qualification rate reaches 100%.

[0017] 3. Energy consumption and equipment lifespan optimization: By precisely controlling the processing chamber temperature within the optimal range of 100-150℃ through a PID controller, combined with temperature gradient-linked speed adjustment, energy consumption is reduced by 20%-25% compared to existing fixed-speed equipment. At the same time, the smooth non-sinusoidal speed change mode reduces mechanical shock to the equipment, reduces the aging rate of friction parts by 15%, and extends the overall service life of the equipment by more than 20%.

[0018] 4. Scientific and reliable structural and process design: The various systems of the equipment work closely together, and the processing container provides a closed disposal space to avoid secondary pollution; the frequency conversion control system uses an industrial-grade programmable frequency converter, which has high control accuracy and strong stability; the processing method is clear and easy to operate, making it suitable for large-scale promotion and application. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structural relationship of a medical waste disposal device according to an embodiment of this application.

[0021] Figure 2 This is a flowchart illustrating a medical waste treatment method according to an embodiment of this application.

[0022] Figure 3 This is a schematic diagram of the speed-time curve for a non-sinusoidal periodic speed change of a friction component. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] First, in the description of the embodiments of this application, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] Secondly, the terms "first," "second," and "third" are used only to distinguish descriptions and have no order or distinction of importance. They should not be interpreted as indicating or implying relative importance. Features marked "first" or "second" may explicitly or implicitly include one or more of the same feature.

[0028] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted; the term "along a certain direction" does not imply that it must be absolutely parallel to that direction, but can be offset, that is, it can have a component in that direction.

[0029] Furthermore, it should be noted in the description of this application that, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, electromagnetic connections, or even communication connections; they can refer to direct connections or indirect connections through an intermediate medium, or even internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] Furthermore, in this application, "and / or," such as "feature 1 and / or feature 2," refers to three possibilities: feature 1 alone, feature 2 alone, or feature 1 plus feature 2.

[0031] Please see Figure 1 This application discloses a medical waste disposal device, comprising a processing container, a frictional heat generation system, a temperature control system, and a discharge system. The processing container has a processing chamber for containing medical waste, providing a closed and stable reaction space for the frictional heat treatment of the medical waste, preventing heat loss and secondary pollution, and ensuring the safety and environmental friendliness of the disposal process. The frictional heat generation system includes a motor, a transmission mechanism, friction components, and a frequency conversion control system. The motor is connected to the friction components through the transmission mechanism, and the frequency conversion control system is electrically connected to the motor to control the rotational speed of the friction components to fluctuate periodically in a non-sinusoidal wave form around a base speed. The friction components are disposed within the processing chamber and interact with the medical waste. Mechanical friction generates high temperatures, achieving the harmless treatment of medical waste. The temperature control system includes a temperature sensor and a PID controller. The temperature sensor is installed inside the processing chamber to accurately collect temperature distribution data. The PID controller is electrically connected to both the temperature sensor and the frequency conversion control system to achieve real-time processing of temperature data and precise issuance of speed control commands, constructing a closed-loop control of "temperature acquisition - data processing - speed control". The frequency conversion control system is configured to automatically adjust the speed fluctuation range and fluctuation period according to the temperature gradient of the processing chamber collected by the temperature sensor, and automatically match the corresponding speed control strategy according to the density type of medical waste, achieving adaptive control of operating conditions and balancing treatment effect and energy consumption optimization.

[0032] In some embodiments, the variable frequency control system includes a programmable frequency converter and a control unit. The control unit has a preset speed change program, which allows for programmable settings of the base speed, speed fluctuation range, and fluctuation period parameters. Through programmable design, the equipment can flexibly adjust the speed change parameters according to actual application scenarios without requiring modifications to the hardware structure, thus reducing equipment adaptation costs. The selection of Siemens series frequency converters ensures speed regulation accuracy and operational stability, avoiding fluctuations in processing results due to speed regulation errors. Simultaneously, the preset program simplifies the operation process and reduces manual intervention costs.

[0033] In some embodiments, the frequency conversion control system is configured to automatically increase the rotational speed fluctuation of the friction components to ±150 rpm when the temperature gradient of the processing chamber exceeds 20°C / cm, and automatically reduce the rotational speed fluctuation of the friction components to ±50 rpm when the temperature gradient of the processing chamber is below 5°C / cm. This dynamic speed adjustment based on the temperature gradient enables precise control of heat distribution. When the temperature gradient is large, increasing the rotational speed fluctuation enhances the synergistic effect of frictional heat generation and heat diffusion, quickly alleviating local overheating. When the temperature distribution is uniform, reducing the fluctuation can reduce energy consumption while ensuring processing effectiveness, avoiding ineffective work, and achieving "on-demand control," thus balancing processing uniformity and energy-saving requirements. In some embodiments, the variable frequency control system is configured to automatically adjust the rotational speed fluctuation period of the friction components between 20 and 40 seconds based on the density type of the medical waste. Dynamic speed adjustment based on temperature gradients enables precise control of heat distribution. When the temperature gradient is large, increasing the rotational speed fluctuation amplitude can enhance the synergistic effect of frictional heat generation and heat diffusion, quickly alleviating localized overheating; when the temperature distribution is uniform, reducing the fluctuation amplitude can reduce energy consumption while ensuring treatment effectiveness, avoiding ineffective work, and achieving "on-demand control," thus balancing treatment uniformity and energy-saving requirements. In some embodiments, the non-sinusoidal periodic fluctuation specifically refers to the following: the rotational speed of the friction component accelerates to v1 within t1 seconds, maintains this speed for t2 seconds, then decelerates to v2 within t3 seconds, maintains this speed for t2 seconds, and repeats this cycle; where t1, t2, and t3 are time parameters, v1 is the target rotational speed after the base rotational speed is increased, and v2 is the target rotational speed after the base rotational speed is decreased. Compared with traditional sinusoidal or linear speed changes, the non-sinusoidal speed change mode can avoid the mechanical impact of sudden speed changes on the equipment and extend the service life of the transmission mechanism and friction components; at the same time, the "acceleration-hold-deceleration-hold" cycle logic provides sufficient time for heat dissipation, with rapid heat generation in the high-speed stage and promoting uniform heat distribution in the low-speed stage, effectively solving the problem of uneven temperature distribution in fixed speed or simple speed change modes, and controlling the temperature uniformity error inside the processing cavity within ±5℃.

[0034] In some embodiments, the variable frequency control system is configured to identify the density type of medical waste by pre-running at a specific speed. Specifically, in some embodiments, the control motor drives the friction components at a specific speed, collects torque feedback data of the motor during this process, distinguishes between high-density and low-density medical waste based on the differences in torque feedback data, and matches the corresponding speed change strategy. It should be noted that the aforementioned specific speed is generally lower than the operating speed.

[0035] Automatic waste density identification is achieved through torque feedback during low-speed pre-running, eliminating the need for additional density sensors, simplifying the equipment structure, and reducing hardware costs. The identification process is completed rapidly before processing, without affecting overall treatment efficiency. Furthermore, the torque feedback-based identification method offers high accuracy, effectively distinguishing wastes of different densities and providing a reliable basis for subsequent targeted speed-changing strategies. This avoids incomplete treatment or energy waste due to misidentification of waste type. In some embodiments, the motor power is 75kW, and the PID controller controls the temperature of the processing chamber within the range of 100-150°C.

[0036] The 75kW motor provides ample driving force, ensuring that even when processing high-density medical waste, the friction components can still generate enough heat to meet the requirements for harmlessness, avoiding low processing efficiency due to insufficient power. The optimized temperature range of 100-150℃ effectively kills harmful microorganisms such as bacteria and viruses in medical waste, achieving thorough harmless treatment, while avoiding problems such as increased energy consumption, aging of equipment components, and the generation of harmful gases from waste decomposition caused by excessively high temperatures, thus balancing treatment effectiveness, equipment lifespan, and environmental friendliness.

[0037] In some embodiments, the temperature sensor is a high-precision temperature sensor used to accurately collect temperature data at different locations in the processing cavity in order to calculate the temperature gradient.

[0038] High-precision temperature sensors can accurately capture the temperature distribution differences inside the processing chamber, providing reliable data support for temperature gradient calculation and avoiding misjudgments in speed control caused by temperature measurement errors. The multi-location acquisition design ensures the comprehensiveness of temperature data, covering key locations such as near friction components and material accumulation areas, making temperature gradient calculation more consistent with actual working conditions and improving the accuracy of closed-loop control.

[0039] Please see Figure 2 A method for treating medical waste according to an embodiment of this application includes the following steps: S10. The medical waste disposal equipment is started. The medical waste is put into the processing chamber. The frequency conversion control system controls the motor to run at a specific speed, collects the torque feedback data of the motor, identifies the density type of the medical waste, and matches the basic speed, initial fluctuation range and initial fluctuation period of the corresponding friction parts. S20, the PID controller collects temperature distribution data of the processing chamber through temperature sensors and calculates the temperature gradient of the processing chamber; S30, the frequency conversion control system performs adaptive speed adjustment according to the temperature gradient, and controls the speed of the friction component to fluctuate periodically around the base speed in a non-sinusoidal wave form. If the temperature gradient exceeds 20℃ / cm, the speed fluctuation range of the motor is adjusted to ±150rpm. If the temperature gradient is less than 5℃ / cm, the speed fluctuation range of the motor is adjusted to ±50rpm. The speed fluctuation period of the friction component is dynamically adjusted between 20-40 seconds according to the density type of medical waste. S40. Friction components generate frictional heat through periodic variable speed rotation. High temperature achieves harmless treatment of medical waste. After treatment, the waste is discharged through the discharge system. Repeat steps S20-S40 until medical waste disposal is complete and the equipment is shut down.

[0040] The medical waste treatment method of this application embodiment achieves intelligent and precise medical waste disposal through a closed-loop process of "density identification - temperature gradient monitoring - adaptive speed control". Density identification in step S10 lays the foundation for targeted disposal; temperature gradient monitoring in step S20 provides real-time operating condition feedback; dynamic speed control in step S30 enables on-demand adjustment; and step S40 completes harmless disposal and discharge. The entire process requires no manual intervention and has a high degree of automation. The repetitive control logic continuously adapts to changes in operating conditions during the disposal process, ensuring the consistency and stability of the treatment effect. Compared with traditional methods, the treatment efficiency is increased by more than 30%, and energy consumption is reduced by 20%-25%. In some embodiments, the non-sinusoidal periodic fluctuation in step S30 specifically refers to: the rotational speed of the friction component accelerating to v1 within t1 seconds, holding for t2 seconds, then decelerating to v2 within t3 seconds, and holding for t2 seconds again, repeating this cycle. Figure 3 The figure shows a schematic diagram of the speed-time curve of a friction component with non-sinusoidal periodic speed change.

[0041] The clearly defined non-sinusoidal speed parameters make the control logic clearer, facilitating engineering implementation and precise control; the "accelerate-hold-decelerate-hold" cycle mode can accurately match the time requirements of frictional heat generation and heat diffusion, avoiding uneven heat distribution caused by excessively rapid speed changes, or low processing efficiency caused by excessively slow speed changes, further improving the uniformity of temperature distribution, ensuring that all areas of medical waste can reach the harmless temperature standard, and the treatment qualification rate can reach 100%.

[0042] Compared with the prior art, the medical waste treatment equipment and the medical waste treatment method applied to the medical waste treatment equipment of this application have the following beneficial effects: 1. Achieve adaptive and precise control under operating conditions: Through a dual feedback mechanism of "low-speed pre-running torque recognition + real-time temperature gradient monitoring", it automatically distinguishes the density type of medical waste and matches the optimal speed change strategy without manual intervention, adapting to the diverse disposal needs of high-density and low-density medical waste, and improving processing efficiency by more than 30%.

[0043] 2. Significantly improved temperature distribution uniformity: The non-sinusoidal periodic speed-changing mode is adopted, combined with dynamic adjustment of the fluctuation amplitude based on the temperature gradient, which provides sufficient heat diffusion time for frictional heat generation, effectively alleviating local overheating. The temperature uniformity error inside the treatment chamber is controlled within ±5℃, and the medical waste harmless treatment qualification rate reaches 100%.

[0044] 3. Energy consumption and equipment lifespan optimization: By precisely controlling the processing chamber temperature within the optimal range of 100-150℃ through a PID controller, combined with temperature gradient-linked speed adjustment, energy consumption is reduced by 20%-25% compared to existing fixed-speed equipment. At the same time, the smooth non-sinusoidal speed change mode reduces mechanical shock to the equipment, reduces the aging rate of friction parts by 15%, and extends the overall service life of the equipment by more than 20%.

[0045] 4. Scientific and reliable structural and process design: The various systems of the equipment work closely together, and the processing container provides a closed disposal space to avoid secondary pollution; the frequency conversion control system uses an industrial-grade programmable frequency converter, which has high control accuracy and strong stability; the processing method is clear and easy to operate, making it suitable for large-scale promotion and application.

[0046] The above-disclosed examples are merely preferred embodiments of this application, intended to facilitate understanding and implementation by those skilled in the art. However, they cannot be used to limit the scope of this application. Therefore, equivalent variations made within the scope of this application are still within the scope of this application.

Claims

1. A medical waste disposal device, characterized in that, The system includes a processing container, a frictional heat generation system, a temperature control system, and a discharge system. The processing container has a processing chamber for containing medical waste. The frictional heat generation system includes a motor, a transmission mechanism, friction components, and a frequency conversion control system. The motor is connected to the friction components via the transmission mechanism, and the frequency conversion control system is electrically connected to the motor. The system controls the rotational speed of the friction components to fluctuate periodically in a non-sinusoidal wave manner around a base rotational speed. The friction components are located within the processing chamber to generate high temperatures from friction with the medical waste, achieving harmless treatment. The temperature control system includes a temperature sensor and a PID controller. The temperature sensor is located inside the processing chamber to collect temperature distribution data. The PID controller is electrically connected to both the temperature sensor and the frequency conversion control system. The frequency conversion control system is configured to automatically adjust the rotational speed fluctuation range and period based on the temperature gradient of the processing chamber collected by the temperature sensor, and automatically match the corresponding speed change strategy according to the density type of the medical waste.

2. The medical waste disposal equipment according to claim 1, characterized in that, The frequency conversion control system includes a programmable frequency converter and a control unit. The control unit has a preset speed conversion program, and the base speed, speed fluctuation range and fluctuation period parameters can be programmably set.

3. The medical waste disposal equipment according to claim 1, characterized in that, The frequency conversion control system is configured to automatically increase the rotational speed fluctuation of the friction component to ±150 rpm when the temperature gradient of the processing chamber exceeds 20℃ / cm; and to automatically reduce the rotational speed fluctuation of the friction component to ±50 rpm when the temperature gradient of the processing chamber is below 5℃ / cm.

4. The medical waste disposal equipment according to claim 1, characterized in that, The frequency conversion control system is configured to automatically adjust the rotational speed fluctuation period of the friction component between 20 and 40 seconds according to the density type of the medical waste.

5. The medical waste disposal equipment according to claim 1, characterized in that, The non-sinusoidal periodic fluctuation is specifically as follows: the rotational speed of the friction component accelerates to v1 within t1 seconds, maintains this rotational speed for t2 seconds, and then decelerates to v2 within t3 seconds, maintains this rotational speed for t2 seconds, and repeats this cycle; where t1, t2, and t3 are time parameters, v1 is the target rotational speed after the base rotational speed is increased, and v2 is the target rotational speed after the base rotational speed is decreased.

6. The medical waste disposal equipment according to claim 1, characterized in that, The frequency conversion control system is configured to identify the density type of the medical waste by pre-running at a specific speed.

7. The medical waste disposal equipment according to claim 1, characterized in that, The motor has a power of 75kW, and the PID controller controls the temperature of the processing chamber within the range of 100-150℃.

8. The medical waste disposal equipment according to claim 1, characterized in that, The temperature sensor is a high-precision temperature sensor used to accurately collect temperature data at different locations in the processing cavity in order to calculate the temperature gradient.

9. A method for treating medical waste, applicable to the medical waste disposal equipment as described in any one of claims 1-8, characterized in that, Includes the following steps: S10. The medical waste disposal equipment is started, and the medical waste is put into the processing chamber. The frequency conversion control system controls the motor to pre-run at a specific speed, collects the torque feedback data of the motor, identifies the density type of the medical waste, and matches the basic speed, initial fluctuation range and initial fluctuation period of the corresponding friction component. S20. The PID controller collects temperature distribution data of the processing chamber through the temperature sensor and calculates the temperature gradient of the processing chamber. S30. The frequency conversion control system performs adaptive speed adjustment according to the temperature gradient, and controls the rotational speed of the friction component to fluctuate periodically around the base rotational speed in a non-sinusoidal wave form. If the temperature gradient exceeds 20℃ / cm, the rotational speed fluctuation amplitude of the motor is adjusted to ±150rpm. If the temperature gradient is lower than 5℃ / cm, the rotational speed fluctuation amplitude of the motor is adjusted to ±50rpm. The rotational speed fluctuation period of the friction component is dynamically adjusted between 20-40 seconds according to the density type of the medical waste. S40. Friction components generate frictional heat through periodic variable speed rotation. High temperature achieves harmless treatment of medical waste. After treatment, the waste is discharged through the discharge system. Repeat steps S20-S40 until medical waste disposal is complete and the equipment is shut down.

10. The medical waste treatment method according to claim 9, characterized in that, The non-sinusoidal periodic fluctuation in step S30 is specifically as follows: the rotational speed of the friction component accelerates to v1 within t1 seconds, is maintained for t2 seconds, decelerates to v2 within t3 seconds, and is maintained for t2 seconds, and repeats in a cycle.

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