There are abundant low volatile coal stores, such as anthracites and semi-anthracites coal in China. These fuels have the characteristics of difficulties in ignition, flame stability and carbon conversion due to contain lower volatile matter (VM). How to successfully burn low volatile coals has been becoming one of the key issues in power plant boiler. Most of low volatile coal units in China have adopted corner firing technology. Boilers with tangentially-fired burner are easy to form slagging ...