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what is steel silos"four in one" technology in grain storage

Oct.30, 2020Keywords:steel silos, grain storage

The steel silo has the advantages of a lightweight, low engineering cost, short construction period, standardization, automation, a high degree of mechanization, and high storage efficiency. . However, the steel silo has a thin wall and a deep grain layer, which is easy to cause condensation and difficult to check the sample, which is another significant drawback. Today, let's talk about how to use “four in one” grain storage technology in steel silos?
what is steel silos
The steel silo has thin walls, rapid heat absorption, and rapid heat dissipation, if there is a temperature-sensing device in the silo, once the temperature changes, it can be found in time and appropriate treatment. Use 'four in one' grain storage technology, as well as some of the original grain processing technologies, such as cleaning, screening, grading, vacuuming, and dusting, as well as management methods, mature and complete, such as automatic warehouse unloading and cooling System, etc., the steel silo, should also be able to achieve safe storage of grain.

Monitoring and control of the grain situation

Modern electronic technology is used to achieve real-time monitoring, analysis, prediction, and control of changes in grain conditions during the grain storage process. The system consists of a measurement and control host and a measurement and control extension to form a measurement and control network. Convergence to the control center wirelessly, management personnel can grasp the food safety situation in time through the host computer software, and automatically or manually control the opening and closing of related equipment through the software to achieve the objective of cooling and dehumidification. Electronic sensing elements for detecting temperature and humidity are installed in the attic, which is easy to operate.The temperature and humidity in the silo can be monitored at any time, and the data can be recorded and printed.

Mechanical ventilation

The main purpose of the safe storage of wheat is to prevent mold, heat generation, and pests in the grain pile The key factors affecting the grain pile and the storage environment are the temperature and humidity of the grain pile. Using intelligent mechanical ventilation, thanks to the special design of the air duct, at the time of ventilation, the difference in temperature and humidity, the air volume and the adjustment of the number of exchanges, and to the air network design of grain ventilation, fumigation and cooling technology, warehouse temperature and environment control Wet to prevent food damage.

Grain cooling

Through cooling and temperature control, keeping the grain in a low-temperature state below 15 ° C or a near-low temperature state below 20 ° C can significantly slow down the "respiration" of the grain, ensuring long-term storage and freshness of grain, and prevent the reproduction of grain insects. The grain cooler, when the temperature of the grain pile in the silo exceeds the standard, sends the cold air generated by the grain cooler into the silo through the air supply system to cool the temperature of the grain. Grain cooling technology helps maintain and properly adjust grain moisture while cooling. It has three functions: cooling ventilation which maintains humidity, cooling ventilation reducing humidity, and tempered cooling ventilation. Quality of food.

Fumigation and insecticide

Fumigation and insecticide are based on attic theory, aerodynamic circulation theory, chemical control theory, using microcomputer control technology, using deliquescent aluminum phosphide tablets to produce phosphine gas, through the circulation fumigation equipment, the forced air circulation to promote phosphine gas in Evenly distributed in the grain heap to achieve effective insecticide targets. Phosphine circulation fumigation insecticide technology is used in northern wheat storage silos, using phosphine generators for dosing, 9 hours after the end of the application, a uniform state is achieved and the effect fumigation control is good. In addition, thanks to the high airtight function of the steel silo, it can be filled with nitrogen. Nitrogen in the main air duct enters the grain pile and flows evenly between the pores of the grain pile to remove oxygen, exert a pesticidal effect, and control pests more effectively. 


The moisture content of the grain must not exceed the standard and must meet the grain storage standard. If the humidity exceeds the standard, the moisture inside the grain pile will tend to slowly dissociate from the interior of the grain to the surface and then to the air in the space between the grains. It is more difficult for grain moisture to escape from stagnant air. It accumulates between the grains and begins to condense when the wet state reaches the point of saturation. This will lead to mold and local temperature rise, threatening the safe storage of grain. Must be well ventilated and ventilated to dissipate moisture and reduce storage stability and humidity.

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