The result is shown that, it can be concluded that the air gradation combustion technology is useful to ensure the lignite steady combustion under lower load, control the emission of NO x and reduce the slagging phenomenon in a six corners tangentially boiler.

Lowering coal quality will influence the stability of combustion seriously,and unstable combustion causes the significant changes of wall temperature in furnace and water level fluctuation in drum.

Focusing on current obvious problems on safe,economical and stable combustion for coal-fired boilers in China,some main reasons affecting safe,stable and economical boiler combustion are analyzed,and some important methods and outlines for the reform of boilers used at present are introduced.

Long-time stable combustion is a big technical problem for W-flame boilers, which fire lambskin from Shaoguan District.

Effects of MAC fines proportion on sinter properties at Han Steel;

Study on the improvement of sinter strength;

Study on lowering Reduction Degradation Index(RDI) of sinter;

Production practice on reduction of sintered ore content in grain size ≤10mm;

Determination of irom? in sintered ore by the combined analyzer of X-ray fluorescence and X-ray diffraction;

Combination forecasting of sintered ore alkalinity based on grey neural network;