Advantages of radar level gauges in the cement industry

The technology of radar level gauge has developed rapidly in recent years and is the most widely used non-contact measurement method, especially in liquid level measurement.

Advantages of radar level gauges in the cement industry

The technology of radar level gauge has developed rapidly in recent years and is the most widely used non-contact measurement method, especially in liquid level measurement. In the cement industry, radar level gauge measurement has been widely used in raw material distribution libraries, raw coal storage, clinker storage, etc., but ultrasonic waves must be transmitted by means of media. For example, in the storage location of cement plants, air is usually used as the propagation medium. The change of air temperature, humidity, composition, etc. will affect the ultrasonic propagation speed, and the dust in the air will also attenuate the ultrasonic propagation signal; the current ultrasonic level measurement is only used to measure the block material or granular material, The measurement of the material level, because the surface of the powder bin is very loose during the blanking, has a strong attenuation of the ultrasonic signal, so there is no precedent for the success of the powder bin.
The level is one of the main measurement parameters of the cement industry production process. Unlike other industries, the cement industry mainly measures the level of solid materials, and the liquid level measurement is rare. There are many kinds of solid materials, such as blocks, granules and powders. The dielectric constant, bulk density, temperature and moisture content of these materials are also different. Contact measurement is the main means of measuring the level in the past, such as capacitive, heavy hammer, tuning fork, and rotary rotation. Because the instrument and materials are in contact during measurement, various problems often occur during use. For example, the hanging material of the capacitor; the broken hammer and the buried hammer of the heavy hammer; the blocking material of the tuning fork, etc., and the daily maintenance amount is large. By the 1990s, the cement industry began to use non-contact level measurement. The earlier mature non-contact measurement technology includes ultrasonic technology and nuclear radiation technology (gamma ray). The nuclear radiation technology is applied in the field due to the source of radiation. limit.



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