Increased availability for waste and biomass fired boilers
The use of waste and biomass as a fuel is a procedural challenge. The inconsistent structure of these fuels results in a wide range of calorific values as well as different fly ash composition. The quantity and distribution of ash-forming matters in the fuel as well as the actual operating parameters, are major influential factors or fly ash composition and therefore dictate the fouling tendency.
In particular, deposits in the open passes of incinerators strongly influence the plant's availability. Fouling on the membrane walls of the open passes can lead to significantly reduced heat transfer which consequently increases the flue gas temperature before the superheaters. Raised flue gas temperature and corrosive chemical components combine to produce a substantial risk for high-temperature corrosion.
Our solution
The SCS shower cleaning system uses water as the cleaning medium. Located on the boiler roof, it removes deposit from the lower side, the membrane walls, the pendant heater and superheater surfaces. The cleaning nozzle is mounted on a flexible, temperature-resistant metal hose. The nozzle enters the boiler guided by a flange, which is opened and closed through an electropneumatic valve. After cleaning, the metal hose will be completely retracted and rolled up by the hose reel. |
