Development of pulverized coal fired low NO{sub}x A-PM burner and performance in Misumi NO.1 1000MW boiler

摘要

Mitsubishi Heavy Industries, Ltd. (MHI) has achieved low NO{sub}x combustion by applying circular corner firing in combination with the PM (Pollution Minimum) burner, the MACT (Mitsubishi Advanced Combustion Technology) in-furnace NO{sub}x removal system, and the high fineness MRS (Mitsubishi Rotary Separator) pulverizer. About 30 coal-fired low NO{sub}x boilers have already been delivered, and the combustion technology has been licensed in Europe, Asia, and the Americas. Recently, as requirements for coal-fired boilers have become more stringent, combustion technologies to achieve these requirements have become more important. The objective of this study is to illustrate A-PM (Advanced PM) burner that will achieve low NO{sub}x emissions and high burn out, while also featuring a simple design.