Developing an energy saving control system for sewage sludge drying equipment with real-time moisture content measurement
Oct 18, 2023
Nippon Steel Engineering, in Japan, wanted to increase the amount of dewatered sludge to the drying plant. They relied on Valmet Dry Solids Measurement at the inlet of the pelletizing, and the Valmet High Solids Measurement at the output of the pelletizing. This resulted in their input moisture to increase 3.3% and the output moisture 1%. At the same time, their fuel usage per moisture input was decreased by 5.5%.
In order to increase the thermal heating efficiency there is a needed for this kind of real time and high performing measurements.
Mr. Oizumi Project Manager, Nippon Steel Engineering Co., Ltd., Japan
Summary
Location
Nippon Steel Engineering, Japan
Customer challenge
Increase the amount of dewatered sludge to the drying plant
Reliable solids information of the dewatered dry cake from different plants
Real-time customer acceptance level for moisture content of pellets
Solution
Nippon Steel Engineering has developed their processes with the following measurements:
