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Flue gas scrubber

Level measurement in the flue gas scrubber

Level measurement in the flue gas scrubber
Level measurement in the flue gas scrubber

Process data

Measuring task:
Level measurement
Measuring point:
Scrubbing tower
Measuring range up to:
4 m
Lime water, flue gas
Process temperature:
+30 … +50 °C
Process pressure:
+0.2 … +0.4 bar
Special challenges:
Turbulent product surface, vacuum, buildup, low liquid level


Flue gas from waste incineration must be cleaned before it is released into the environment. Flue gas scrubbers do this by removing acidic gas components such as sulphur dioxide. Lime water is used as the washing solution and it is sprayed in against the flow of the gas. The lime deposits filtered out of the washing water are used as gypsum, e.g. for the production of plasterboard. To ensure a continuous scrubbing process, a constant level in the scrubbing tower is required.

Your benefit

Reliable function, even with a turbulent product surface
Cost effective
Economical solution without capillary tubes
User friendly
Front-flush mounting avoids buildup and enables a maintenance-free measurement

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Industry brochure

Level and pressure instrumentation for the environment and recycling industry