Reliable radar level measurement of bitumen stored in tanks at high temperatures
Measuring the level of bitumen in storage tanks of coking plants can be complex. The sticky nature of the material, high operating temperatures, and multiple signal reflections inside the tank often make accurate level detection difficult.
The LM78 series, ADV series, and guided wave radar level transmitters are equipped with 76–81 GHz high-frequency radar technology and an advanced false echo learning function. They provide the transmitters stable and precise readings even in challenging environments. They effectively eliminate false reflections and accurately identify the true material level, which ensures a reliable performance despite extreme process conditions.
A coking plant in Shandong used the 80 GHz radar level transmitter to measure bitumen levels inside its storage tanks.
The tanks were 7 meters high, holding bitumen at 220°C, and equipped with internal heating coils that circulated high-temperature steam to keep the material in liquid form. The transmitter was installed 7.5 meters above the base with a DN150 flange connection. Previously, a 26 GHz horn-type radar level transmitter had been used, but the strong adhesiveness of bitumen caused heavy buildup on the antenna, even with a dust cover in place. The accumulated residue severely weakened the radar signal that lead to inaccurate measurements.
After switching to the 80 GHz radar level transmitter, our engineers fine-tuned the installation to avoid interference from the heating coils. The instrument successfully achieved accurate, stable readings, earning high praise from the customer for its performance and reliability.
