Abstract:Incineration is the most effective way to dispose municipal solid wastes. However, the corrosive atmosphere and abrasion during incineration pose highly risks for boiler operation safety. In this work, different coating technologies of cladding, refractory shielding and thermal spraying were comparatively discussed. We have thus proved that it is practical to employ thermal spraying technology to protect boiler tubes and thus extend the boiler service life. The mechanical properties and corrosive resistance have been investigated. The coating preparation was carried out in-site in the boiler chamber. The coating service behavior under the real incineration atmosphere was also monitored.