If cleaning is necessary to restore cleaning capacity, we clean the inside as well as the external tube surface. We use a range of methods to clean the external surface including dry cleaning, foam cleaning and mechanized hydro-jetting.
Internal tube cleaning is performed by automated high pressure water jetting techniques such as tube lancing equipment (TLE). Chemical cleaning can be used to remove hydrogen sulphide (H2S), iron sulphide (FeS) and/or sticky pollutants that present challenges to hydro-jetting applications.
- Dry cleaning:
- We use soda blasting to clean induced and forced draft ACHE. For induced draft ACHE, this method can be carried out fully online. For forced draft ACHE, it is required for the fan to be stopped.
- Foam cleaning:
- Foam cleaning allows the active ingredient to penetrate into the pollution as it clings to the fins. The foam with the dislodged pollution is then washed down with water.
- Mechanized hydro-jetting:
- For the cleaning of A-Frame and forced draft ACHE, we use multiple nozzle jetting heads, which move along a rail by chain and air-motor.