With the rapid rise of food processing industry, food safety has received more and more widespread attention. Sterilization is an important process to ensure food safety during food production and processing. As one of the commonly used sterilization equipment, the horizontal sterilization retort plays a decisive role in the food industry. However, during the specific inspection process, it is often found that different levels of corrosion occur locally in the horizontal sterilization retort. This not only affects the safe operation of the horizontal sterilization retort, but also greatly shortens the service life of the horizontal sterilization retort.
Analysis of corrosion causes:
Based on the inspection results, we will observe and analyze the customer's on-site conditions, and communicate with the equipment management personnel to understand the use of the horizontal retort machine. Comprehensive analysis will lead to a comprehensive analysis of the causes of corrosion, which are generally caused by oxygen corrosion, acid corrosion, mechanical contact damage and other factors.
Measure:
According to the analysis of various causes of corrosion, the following measures can be taken to prevent or reduce the occurrence of corrosion in horizontal retort machines in actual use.
1. The horizontal retort machine is a pressure vessel, but according to its operating process characteristics, it is a pressure vessel that can withstand alternating loads and frequent intermittent operations. Therefore, safety management should be strengthened and scientific and reasonable operating conditions and safety management measures should be formulated, which is a necessary condition to prevent corrosion.
2. When installing the horizontal sterilizing retort machine, the pot body can have a certain inclination angle (lower in front and higher in back) to ensure effective sewage discharge.
3. Strengthen management and promptly remove sewage or dirt in the retort machine. Especially when it is out of use, the pot should be kept dry and clean.
4. In order to reduce the oxygen content in the boiler, the boiler water supply should be installed with additional equipment, and the time for entering and exiting the feed truck should be as short as possible.
5. During normal operation, if hard objects such as iron hooks periodically enter the pot, try to avoid collision and friction with the pot drum.
6. The outer guide rail of the retort machine should be placed correctly to avoid hitting the pot body. At the same time, the outer guide rail of the retort machine should be as high as possible with the inner guide rail of the retort machine, and the gap should be as small as possible to ensure that the feed truck enters and exits the retort machine smoothly.
7. The exhaust pipe should lead the exhaust port to a suitable location to avoid direct steam spraying onto the insulation of the pot cylinder during exhaust. Inspections should be strengthened. If the insulation is damaged or damp, it should be dealt with promptly.
When horizontal retort machines are used improperly, corrosion is quite common. Users should enhance their management awareness, take accurate and effective preventive measures, and at the same time strictly implement the regular inspection system, promptly discover various defects through regular inspections, and eliminate equipment hazards.
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