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Feeding: Pour medical waste into sterilizer through feeding machine, close the front door and wait for sterilization treatmen |
2 |
Sterilization treatment: after the current door is closed, PLC gives instructions to the sterilizer and starts to run the sterilization procedure preset by the sterilizer for sterilization treatment. |
3 |
Pulsation: Vacuumize and steam into the sterilizer repeatedly for several times, and then vacuumize again. When the indoor pressure is high enough to pulsate offline, the program will turn to the heating stage. After this stage, the removal rate of cold air in the inner chamber can reach more than 99%, to ensure that there is no dead corner in the inner chamber, to ensure that the sterilization is qualified. |
4 |
Heating up: steam enters the inner chamber through the interlayer of sterilizer to heat the waste. At the same time, the inner trap is opened intermittently to discharge the water generated after steam condensation. After the inner chamber temperature reaches the set value, the procedure is transferred to sterilization stage. |
5 |
Sterilization: high temperature steam sterilization equipment in many forms, the common vertical sterilization cabinet, horizontal sterilization cabinet; Pressure is atmospheric (the normal pressure in the cabinet is not greater than atmospheric pressure), pressure type (the normal pressure in the cabinet is greater than atmospheric pressure); According to the type and quantity of medical waste, sterilization requirements, etc. Because medical waste is the main performance of the pathogenic infection, so its placement in the steam atmosphere of a certain temperature and keep a certain time, using the water vapor latent heat release, cause of pathogenic microorganisms in the medical waste protein degeneration and coagulation and death, to medical waste harmless, achieve the goal of safe disposal. Start the sterilization timer, during which the chamber inlet valve is controlled by the chamber temperature and pressure to ensure sterilization within a certain temperature range.
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6 |
Exhaust steam: the exhaust valve is opened, and the steam in the inner chamber is discharged under the action of internal and external pressure difference. After the action of heat exchanger, most of the steam is condensed into water, and a small part of the steam is filtered and discharged to the atmosphere. When the pressure in the inner chamber reaches the set value, it turns to the drying stage. |
7 |
Drying: the vacuum pump is opened to vacuumize the inner chamber, while the interlayer maintains a certain pressure and temperature to play a drying role. The drying completes the closing of the rear air valve and the vacuum pump, and the program ends.
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8 |
Post-treatment: after treatment, the medical waste should be broken and destroyed, so that the medical waste can not be identified, so as to avoid being recycled by lawbreakers and endanger the society and the masses. Due to the complexity of medical waste, waste liquid, waste gas, volatile organic compounds, heavy metal ions and other harmful substances will be discharged to the environment during the disposal process. Therefore, the disposal effect of high-temperature steam should meet the environmental health standards, and the waste liquid and waste gas should be effectively treated to prevent secondary pollution.
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