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Lime milk pipeline

Density
Lime milk pipeline

Overview

The flue gas enters the scrubbing tower (absorber) and cools down further. Here the lime milk (gypsum suspension) is sprayed into the flue gas to wash out the SO2 gas component. The sulphur dioxide is converted into calcium sulphite, which then falls into the absorber sump. To ensure effective flue gas desulfurization, the lime milk (gypsum suspension) must always have a certain density. Radiation-based measurement is used to ensure this.

Operating Conditions

Measuring Task
Density measurement
Measuring Point
Pipeline
Medium
Lime milk
Measuring Range
0.3 m
Temperature
-40 … +50 °C
Pressure
+1 … +3 bar

Challenges

  • Determining exact density of lime milk

Benefits

  • Reliable: Maximum safety through approvals according to SIL
  • Cost effective: Reliable density measurement ensures high plant availability
  • User friendly: Maintenance-free through non-contact measurement

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