The experimental dates derived from the normal and hot state experiments on deflection angles of varying airflow prove the feasibility of the new type swirl flow hot blast stove.

Based on combustion theory and the analysis of the composition of lime mud from causticization stage of chemical recovery plant of a mill using reed as raw material, the cause of a leaking accident happened in a cyclone furnace where pulverized coal and causticizing lime mud was used as a blended fuel was discussed.

The high temperature combustion desulfurization possibility by fly ash remelting is study in vertical experiment cyclone furnace.

Study on the thermal efficiency and the energy saving mechanism of BF hot stove with the high emissivity coating;

The best application part was the high temperature part in the BF hot stove.