The Application of Carbon Dioxide Gas Detectors in the Grain Storage Engineering
This system is the key to realizing the controlled atmosphere process and ensuring the process concentration. Its main functions are as follows: real-time automatic collection, conversion, and transmission of the CO₂ data in the grain storage, data display and printing, data management (including functions such as data recording, data analysis and processing, alarm prompts, reserved data communication, etc.), and it has the switching function between manual and automatic operations. It can realize the open setting and adjustment of system parameters, which is convenient for upgrading, updating, and optimizing the settings.
The system schematic diagram is as follows:
Keywords: Grain Storage, CO₂ Controlled Atmosphere Grain Depot, Infrared Gas Analyzer
Overview
The grain storage project is a systematic project integrating multiple disciplines such as agriculture, biology, architecture, environmental protection, chemical engineering, instruments and meters, computer technology, etc. With the rapid development of China's modernization drive, the construction of the "green grain depot" is an important topic in the current grain storage industry. During the grain storage process, in order to ensure the quality of the stored grain, it is necessary to prevent the damage caused by stored grain pests and molds in the grain.
For a long time, China has usually used chemical agents such as phosphine and ethylene oxide to fumigate grains to achieve the goal of killing pests. The research on the technology of storing grains under a carbon dioxide (CO₂) controlled atmosphere has already carried out insecticidal tests as early as 1917. After the 1940s, the use of cheap insecticides restricted its development. Subsequently, issues such as the residues of insecticides, environmental pollution, damage to the ecological environment, and the increase in pest resistance have increasingly attracted people's attention. The demand for natural green food has made the method of storing grains under a CO₂ controlled atmosphere attract people's attention again. Economically developed countries such as the United States, Japan, Russia, and Australia have gradually reduced the use of chemical agents in grain storage, and have been developing towards ecological grain storage with comprehensive prevention and control methods such as low temperature, controlled atmosphere, physical and biological methods. They have also carried out a large number of studies and tests on the technology of storing grains under a CO₂ controlled atmosphere, and have successfully applied it, establishing commercial use specifications.
