The structure-optimizing design of first-stage firing chamber in oil-saving ignition burner has been carried out by using computerized numerical simulation. Taking Fluent software as a platform

a numerical simulation of air-solid two-phase coupling combustion process concerning a mixture of pulverized coal

air

and oil torch in first-stage firing chamber has been conducted

obtaining optimal structural parameters of the first-stage firing chamber under certain condition

providing with reference for substancial test and industrial application of the oil-saving ignition burner.