Service / support

Here you will find answers to some of the questions that typically arise in the operation of biomass plants. If this does not solve your needs, please feel free to contact us.

  • Combustion is not optimal.
  • The oxygen percentage may be too low. This is displayed on the control panel and should preferably be 8-9%.
  • There may be too much fuel in the boiler. Look through the drawer glass and/or open the cleaning lid if necessary.

The oxygen percentage may be too high. This is displayed on the control panel and should preferably be 8-9 %

Straw boiler:

  • Stop the machine and check for cords around the shafts and/or bearings of the drive drums.
  • Check on the control panel if the ampere load on the exciter is too low.
  • Check if there is negative pressure in the firebox. In front of the boiler, where the fuel is fired in with the stoker, there is a small metal tube and some hose for the vacuum gauge. Check pipe and hose for free passage. These can be cleaned with a knitting needle or similar.
  • Make sure to clean the flue pipes.
  • Also examine the rubber flaps of the cell louse. Stop the system and see if the rubber flaps should be replaced due to wear.
  • The damper motor at the flue outlet of the boiler must be fully open at boiler start-up. Check the position indicator to see if the damper is open.

This may be due to a lack of negative pressure in the boiler room (see more under “There is smoke in the boiler room”)

Check for worn and/or damaged diaphragms in the shot valves.

Check that the diaphragms around the shot valves are not leaking.

When the system is completely stopped, the oxygen meter should read 20,9 % (atmospheric air). If it shows anything between 0% and 20.9% at standstill, the probe may be sooted. Take out the probe and clean it.

  • The sprinkler system may lack water and/or pressure. Fill the sprinkler tank with water.
  • Danfoss pressure switch RT110 needs to be reset.

There are probably foreign bodies in the ash, such as stones, axle stubs, etc. Stop the plant first. If there is automatic reversal of ash snails on the plant, make use of this. If not, contact your electrician and have him reverse the auger by reversing the current.

The board is built up of double clamps, and if you look into the back of the board, clamp row 2 will appear

  • If the blades in the ripper are getting too dull, they should be replaced or possibly sharpened.
  • Stop the machine and check for cords around the shafts and/or bearings of the drive drums.