Fire detection in carbon silos

Oxygen and powder carbon are injected into an electric arc furnace in order to create a foamier slag layer. The ensuing combustion of CO to form CO2 supplies additional energy to the melting process. The carbon is stored in silos, with varying space availability. When an inert silo is not used, employed oxygen measurement technology can detect the risk of a fire by decreasing the silo’s O2 content. Alternatively, a CO monitor, such as the GM901, can detect the fire risk by increasing CO content in the silo. A combination of these two fire detection solutions is also possible.

  • Following product families can be used
    • O2 transmitter based on high-performance laser spectroscopy (TDLS)
    • For use in use in explosion-hazardous areas (FM, ATEX and IECEx approvals)
    • Measurement directly in the process or extractive using a measurement gas cell (option)
    • Designed for heavy-duty industrial applications
    • Compact design and easy to operate
    • Long-term stability
    • No moving parts
    • Representative measurement along the duct diameter
    • Operation via control unit
    • Short response times
    • Verifiable with gas-filled cell; gas-testable probe with test gas