Glossary
Disc atomizer
Definition
Atomizer in which the fuel is distributed over one or more stacked plates and discs, used for the highest outputs.
A disc atomizer distributes the fuel over a stack of plates and discs instead of a single orifice. Where the required output exceeds what one bore can pass, several plates are combined; each plate carries its own orifices and swirlers, and the spray of the individual plates merges into one cone.
The result is a pressure atomizer for very large burners: 100 to 5000 kg/h with a spray angle from 30° to 80°. Spray angle and spray pattern are matched to the individual burner head and the atomizer can be fitted with a shut-off needle.
Because the plates, swirlers and discs are separate parts, they can be replaced individually as wear items — a practical advantage on large furnaces where replacing a complete atomizer body is expensive.