Steel silo has the advantages of light weight, low project cost, short construction period, standardization, automation, high degree of mechanization and high storage efficiency.It has outstanding advantages in improving the working environment of grain entering and leaving the warehouse, reducing labor intensity and improving operation efficiency, and is welcomed by enterprises.However, the steel silo has thin walls and deep grain layers, which can easily cause condensation and make sample inspection difficult, which are also its obvious shortcomings.Today, let’s talk about how to use “grain storage technology” in steel silos?
The steel silo has thin walls, absorbs heat quickly and dissipates heat quickly.If there is a temperature detection device in the warehouse, once the temperature changes, it can be detected in time and dealt with appropriately.Utilize grain storage technology and some existing grain processing technologies,such as cleaning, screening, grading, suction and dust removal.And a mature and complete approach to management,such as reverse warehouse, warehouse automatic cooling system, etc.Steel silos must also be able to achieve safe grain storage.
1.Grain situation measurement and control.
Use modern electronic technology to realize real-time monitoring, analysis, prediction and control of changes in grain conditions during grain storage.The system consists of a measurement and control host and a measurement and control extension to form a measurement and control network. The measurement and control extension installed at each granary collects grain condition data and aggregates it to the control center in a wired or wireless manner.Managers can grasp the grain safety situation in a timely manner through the host computer software, and use the software to automatically or manually control the opening and closing of relevant equipment to achieve the purpose of cooling and dehumidification.The granary is equipped with electronic sensing elements for detecting temperature and humidity. It is easy to operate and can control the temperature and humidity in the granary at any time, and save and print data.
2.Mechanical ventilation.
The safe storage of wheat is mainly to prevent mildew, heat and pests in the grain pile. The key influencing factors are the temperature and humidity of the grain pile and storage environment.Intelligent mechanical ventilation is adopted, and through the special design of the air duct, ventilation timing, temperature and humidity difference, air volume and exchange frequency adjustment.At the same time,the wind network design takes into account ventilation, fumigation and grain cooling technologies to control temperature and humidity in the warehouse environment to prevent grain damage.
3.Grain cooling.
Through cooling and temperature control, keeping grain in a low temperature state below 15℃ or a quasi-low temperature state below 20℃ can greatly slow down the “breathing” of grain, ensure long-term storage and preservation of grain, and prevent the reproduction of grain insects.Grain cooler, when the temperature of the grain pile in the bin exceeds the standard, the cold air generated by the grain cooler is sent into the bin through the air supply system to cool the grain temperature.Grain cooling technology can maintain and appropriately adjust grain moisture while cooling down, and has three functions: moisture-maintaining cooling ventilation, moisture-reducing cooling ventilation, and conditioning cooling ventilation.It is an important technical measure for green storage and preservation of grain, maintaining and improving the quality of stored grain.
4.Fumigation and insecticide.
Fumigation and insecticide are based on the granary theory, aerodynamic circulation theory, and chemical control theory.Using microcomputer control technology, aluminum phosphide tablets are deliquesced to generate phosphine gas.Through the circulation fumigation equipment, forced air circulation circulates to promote the even distribution of phosphine gas in the grain pile to achieve effective insecticide purposes.Phosphine circulation fumigation insecticidal technology in the northern wheat storage warehouse, the use of phosphine generator to administer, 9 hours after the end of application, the uniform state, fumigation control effect is good.In addition, the high airtightness of the steel silo can be used to fill it with nitrogen. The nitrogen in the main air duct enters the grain pile, flows evenly between the pores of the grain grains in the grain pile, discharges oxygen, exerts an insecticidal effect, and has a better pest control effect.
As an important piece of equipment in modern grain storage technology, steel silos have many advantages and disadvantages, but there are also some shortcomings and limitations.In grain storage technology, we need to combine a variety of technical means and methods to formulate scientific, reasonable and effective grain storage plans according to different situations and needs to ensure the safety, quality and efficiency of grain.
First of all, grain condition measurement and control is an important part of steel silo grain storage technology.By installing electronic sensing elements, real-time monitoring of temperature, humidity and other parameters in the warehouse is carried out, and the data is transmitted to the host computer software for real-time analysis and early warning, thereby achieving real-time monitoring and effective control of grain conditions.Managers can keep track of the food safety status through the software and take appropriate measures to adjust and control.
Secondly, mechanical ventilation is also an important means in steel silo grain storage technology.Through the intelligent ventilation system, according to changes in grain conditions and the needs of the storage environment, parameters such as ventilation timing, air volume, temperature and humidity differences can be adjusted in a timely manner to scientifically and reasonably control the environment in the warehouse to achieve the purpose of temperature and humidity control.Prevent grain mildew, fever and the occurrence of pests in the warehouse.
In addition, grain cooling technology is also an important part of steel silo grain storage technology.The cold air generated by the grain cooler is sent into the warehouse to keep the grain in a low or quasi-low temperature state, slow down the respiration of the grain, and prevent the deterioration of the grain and the occurrence of insect pests.At the same time, grain cooling technology can also maintain and appropriately adjust the moisture of the grain, improving the quality and freshness of the grain.
Finally, fumigation and insecticide is also a necessary measure in steel silo grain storage technology.Through phosphine circulation fumigation technology, phosphine gas is evenly distributed in the grain pile, effectively killing various pests and eggs and protecting the safety and quality of grain.At the same time, taking advantage of the high airtightness of the steel silo, nitrogen can be filled for insecticide to improve the effectiveness of pest control.
In summary, steel silos have broad application prospects and advantages in grain storage technology.By combining a variety of technical means and methods to formulate a scientific, reasonable and effective grain storage plan, the advantages of steel silos can be fully utilized to improve the safety, quality and efficiency of grain.
