Dongguan City is Connaught Packing Co., Ltd. mainly produce beverage EOE, aluminum easy-open lid, tinplate EOE and other products, the following package from Dongguan solid promise to briefly explain the basic process of EOE cans regardless of which high-pressure steam sterilization types of sterilization equipment, when using high-pressure steam sterilization, must be operated in accordance with the following main processes:
1. into the steam exhaust air - into the steam sterilization begin to open all the valves, exhaust valves and valve discouraged, steaming, sterilization pot exclude air. When the exhaust valve is no longer mixed with air discharged only gray pure steam, exhaust end.
The pot will be wrapped in the presence of cold air around the can, is not conducive to heat, the pot temperature is not uniform, in part inadequate sterilization of canned phenomenon. Meanwhile, oxygen at high temperatures is likely to cause rust oxidation tank outer wall, also contributed to the pot temperature and pressure do not match.
When the exhaust end record the temperature and time.
2. The heating temperature refers to the steaming pot sterilizing temperature reaches a predetermined sterilization temperature, heating time includes exhaust time.
Check the recorder, mercury thermometer readings and pot pressure release in line until the sterilization temperature stable, record the temperature and time.
Exhaust and heating time can retort type and size, piping arrangement, diameter size, gas pressure, cans, canned stacking methods determined according to, usually 10 ~ 15min.
3. thermostatic sterilization - sterilization timer from timing sterilization is to achieve a stable provision of sterilization pot sterilization temperature starts calculation. The temperature is maintained until the end of the sterilization time required sterilization time is called a thermostat. During the constant sterilization temperature fluctuation range should be controlled at about ± 0.5 ℃.
Sterilization temperature with a mercury thermometer readings can be expressed, can not be converted with a pressure gauge readings, to avoid errors. Sterilization time should be accurate clock or timing device timing may not be used to watch or record the timing chart.
4. Close steam - sterilization in the end to maintain the required temperature under specified sterilization time, that means the end of the sterilization.
After checking the following items to meet the requirements can turn off the steam valve: clock or timing device to proofread specified sterilization time; sterilization temperature and time charts with a predetermined inspection records are consistent; check whether the mercury thermometer readings indicate that this provision of sterilization temperature. If found in any one of the above is not correct, appropriate measures must be taken to ensure the reliability of sterilization.
Throughout the exhaust, heating and sterilization process, all valves should be opened discouraged, in order to maintain the flow of steam pot so that the pot temperature is uniform all parts and eliminate residual air pot.
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