In agricultural production, ensuring the safe storage of grain is one of the most important links. With the progress of science and technology and the improvement of people's awareness of food safety, the design and application of barn door locks for rat-proof and insect-proof granaries have gradually become an important part of modern agricultural storage. This paper will discuss its importance, design principle and practical application.

I. Importance

As the basic material for human survival, how to properly preserve food after harvest is particularly important. Traditional storage methods often have many problems, such as frequent invasion of pests and mildew, which leads to a large number of food losses. According to statistics, millions of tons of food are wasted every year in the world due to improper storage. Therefore, it is of great significance to adopt efficient and reliable rodent and insect prevention technology to reduce food loss and ensure food safety.

Second, the design principle

1. Physical isolation method:

The physical isolation effect is achieved by setting a firm and durable door structure with good sealing performance. For example, the door panel made of thick steel plate with special rubber strip edge sealing treatment can effectively prevent mice and other small animals from entering the warehouse; At the same time, the sealing strip at the crack of the door is made of materials with good air tightness to prevent pests from invading through tiny cracks.

2. Environmental control law:

Combined with the automatic temperature and humidity regulation system, the environmental conditions in the warehouse are controlled to create a microclimate environment that is not conducive to the survival and reproduction of pests. For example, by installing intelligent ventilation equipment to maintain a suitable temperature range, and regularly releasing carbon dioxide gas to reduce oxygen content, the occurrence of pests can be suppressed.

3. Material selection method:

Choose a new type of environmental protection material with certain repellent effect or strong corrosion resistance as the main part of the door frame, such as stainless steel, which is not only high in strength but also resistant to wear and rust; In addition, a protective film containing natural plant essential oil can be coated on the surface to achieve the purpose of long-term pest control.

Third, the practical application case analysis

After a large farm introduced the latest model of door lock system for rat-proof and insect-proof granary, the loss rate of about 5% in each batch of storage was successfully reduced to less than 1%, which significantly improved the economic benefits. The specific measures include: firstly, the original old ordinary wooden door is completely transformed and upgraded to a new generation product composed of the above-mentioned high-strength metal frame and double-layer sandwich panel; Secondly, according to the seasonal change, the supply of cold and heat sources is adjusted in time to maintain the ideal storage temperature range (18 C ~+25 C); Finally, a set of remote monitoring and early warning mechanism based on the Internet of Things technology platform is specially added, and once an abnormal situation is found, countermeasures are taken immediately to avoid further deterioration and loss expansion.

To sum up, with its advanced scientific design concept and practical and efficient characteristics, the door lock of rat-proof and insect-proof granary has shown broad application prospects and social value in the agricultural storage industry. In the future, with the continuous emergence, perfection and optimization of more new technologies and methods, I believe it can better serve the needs of farmers and friends and the whole society.

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