What method can be used to prevent refuse boiler tube corrosion?

Using bimetallic tubes in refuse boilers can effectively help in preventing corrosion. Bimetallic tubes are composed of two different metals that are bonded together. This design can leverage the advantageous properties of both metals. Typically, one metal will provide structural strength while the other offers corrosion resistance, particularly against the highly corrosive byproducts that can result from burning refuse.

For instance, the outer layer of a bimetallic tube may be made from a corrosion-resistant alloy, which protects the inner structure from the harsh environment inside the boiler. This combination not only enhances the durability of the tube but also extends the life of the boiler system by reducing the likelihood of corrosion-related failures.

Regular cleaning of tubes can help remove deposits and minimize fouling but may not directly address the inherent corrosion issues. Similarly, using single metal tubes may not provide the same level of corrosion resistance. Decreasing the boiler temperature might affect the combustion efficiency and could potentially lead to other operational issues. Therefore, employing bimetallic tubes is a proactive approach specifically aimed at combating corrosion in refuse boilers.