In the iron and steel production industry, pellet ore is one of the important raw materials, and the accurate measurement of its storage volume is crucial for the stable operation of the whole production. With the development of technology, radar level meter has been widely used in the level measurement of pellet silo because of its advantages of high precision and non-contact measurement.

Radar level meter uses ultra-high frequency electromagnetic wave for distance measurement, through the transmitting antenna to transmit microwave signals to the surface of the material, and receive the reflected signals back, according to the time difference or frequency change of the signal transmission to calculate the distance from the material surface to the radar antenna, and then get the height of the material level. Different from traditional measurement methods, such as weighing method or ultrasonic level meter, radar meter can work stably under high temperature, high dust and high steam environment, which is very suitable for pellet silo and other harsh working conditions.

When applying radar level meters for pellet bin level measurement, several key factors need to be considered. As pellets have a certain particle size and uneven surface, this may have an effect on the reflection of microwave signals, leading to measurement errors. Therefore, choosing the right type of radar level meter, such as using a higher frequency band radar or a model with greater signal processing capability, can improve the accuracy of the measurement. The correct installation position is also an important aspect of ensuring the accuracy of measurement, avoiding the interference of microwave signals by obstacles in the silo, and taking into account the dynamic changes in the flow of pellets in the silo, and rationally laying out the position of the radar level meter. In actual use, the measurement stability and reliability of the radar level meter is also affected by maintenance. Due to the complex environment inside the pellet silo, the antenna of the radar level meter may be covered by dust, affecting the signal transmission and reception. Regular cleaning and maintenance is necessary to effectively extend the service life of the equipment and maintain the accuracy of measurement. Meanwhile, the reliability of the measurement data can be further improved by adopting advanced data processing techniques, such as filtering outliers and performing trend analysis.

With the continuous progress of technology, the performance of radar type flow meter is constantly improving, the new radar level meter adopts higher frequency microwave signals, which can provide finer measurement results, and the powerful signal processing algorithm also enhances its adaptability in complex working conditions. The development trend of intelligence makes the radar level meter can realize automatic calibration, remote monitoring and fault diagnosis, which greatly improves the automation level and efficiency of pellet silo material level measurement.