Level measurement for cement clinker coolers

To be cost efficient, the airflow to the clinker cooler must be regulated to the proper amount for the mass of the clinker present on the cooler grates. This requires an accurate level measurement of the clinker. Berthold‘s noncontact and nonintrusive radiometric level measurement technology provides an accurate and reliable clinker level measurement while operating outside of this extremely high temperature environment. The high degree of accuracy, stability and repeatability provided with this level measurement ensures high production rates, optimal efficiency, and superior product quality.

Detector for extreme operating environments

The clinker is cooled as it is discharged from the rotary kiln onto a moving grate through which air is forced. The cooling is regulated by the feed rate and the amount of airflow. The quality of the clinker is directly affected by the cooling rate.

Cooling too slowly results in larger crystaline structure, which requires more energy to complete the grinding process and can decrease product quality. Increasing airflow to the cooler ensures rapid cooling but also results in high energy costs and inefficiencies in other parts of the process. With an accurate measurement of the clinker level, the proper amount of clinker present on the cooler grates can be regulated. This leads to an optimized process and therefore generates cost savings.

Whether it is the proven two-wire system using remote transmitters or the integrated field devices with HART or Bus protocol, Berthold’s level gauges provide patented technology ensuring long-term stability and temperature stability. This achieves a longlasting measurement stability that withstands even strong ambient temperature

changes (up to 0.002% per °C). Berthold‘s level measurement systems are therefore the proven solution for this application.

These are the advantages of Berthold’s radiometric level measurement used for the cement clinker cooler process:

• Accurate and reliable measurement of clinker level
• Energy savings through process optimization
• Low maintanance cost
• Free of wear and maintenance
• No re-calibration due to unmatched stability and aging compensation
• Not exposed to harsh process conditions due to external mounting
• Lowest possible source activity through extreme sensitive detector design

For further information please visit this link:
https://www.berthold.com/en/level-for-cement-clinker-coolers/