Directing against the real situation of a 65 t/h pulverized coal boiler in Beijing

a finely-pulverized coal re-burning denitrification system has been designed by the Thermal Power Research Institute （TPRI） under State Power Corp. based on research achievements in many years

and on the basis of low-NO

x

burner and technology of air burning in steps

making the NO

x

emission concentration to be reduced by 56.5%. Practice shows that the said system to be simple in structure

and convenient for operation and manipulation

have low capital investment and operation cost

hence

it is a high effective low-NO

x

burning technology suitable for the conditions of our country

having wide application prospects.