Hermann Träxler - Dreherei und Maschinenbau

Gas hood components

Träxler designs and produces gas hoods specifically for the requirements of digester towers and their operation. Each component is individually integrated as needed.

  1. Gas hood construction
    Ball segments disc with flanges that are welded on it
  2. Rip reinforcement
    For the necessary absorption of vibrations of the gas hood under all operating modes of the mixer
  3. Mixer connection flange
    Turned flange with groove and O-ring seal, carefully measured by laser and designed for a reliable centrical position of the mixer runner in the riser. For easy mixer installation/uninstallation
  4. Fastening flange of the gas hood
    Turned flange with integrated O-ring groove for the perfect fit when screwing on the digester tank dome
  5. Compound anchor
    Inserted in the casting trough on the digester tank head for load-carrying connection between the digester tank concrete and gas hood and to fasten gas hood
  6. Gas extraction dome
    To extracting the digester gas and connecting the pipelines to the gas pipeline
  7. Over- and under pressure safety relief valve
    Ensures the defined operating pressure in the digester tank; layout is adjustable and variable, designed for various positive and negative pressures ranges
  8. Flange for foam detection probes
    To insert and adjust sensors for remote monitoring of the digester tower operation
  9. Free connecting flanges
    E.g. for the sludge level measurement, etc. - for remote monitoring of the digester tower operation
  10. Flanges for foam fighting and sprinkling lances
    For foam control in the digester tank from up to six positions by targeted spraying on the surface of the foam. The required pipes are build underside in the gas hood. This does not require any trace heating. Water connection is available through a freely selectable nozzle and it can be controlled via ex-zone magnetic valve
  11. Inspection glass
    To observe the system and mixer operation, with wipers, to be opened as needed
  12. Observation lamp
    Switchable LED lamp (with ex-zone protection) as lighting of the interior space of the digester tank to observe flow and fill level