<正>分析了锅炉或热油炉中，影响砂光粉喷燃火焰运动轨迹的主要因素；运用流体力学的温差射流理论，推导了无旋流片圆截面喷管喷燃火焰的运动轨迹方程。

The main factors which affect the path of pulverized wood dust firing in steam boiler or hot－oil boiler are described. The equations for calculating the path of pulverized wood dust firing are deduced on the basis of temperature differential efflux theory of fluid mechanics.