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在气固两相实验台上采用三维ＰＤＡ系统对径向浓淡旋流煤粉燃烧器及蜗壳燃烧器出口的气固流动特性进行了试验，发现前者在中心回流区边缘附近形成了较高的颗粒浓度，中心回流区中颗粒浓度也较大，后者在中心回流区及边缘附近颗粒浓度较小，壁面区域则较大。分析了两相流动特性对燃烧器性能的影响，并通过工业试验进行了验证，表明径向浓淡旋流煤粉燃烧器是一种同时具有高效、稳燃、低污染、防止结渣和防止高温腐蚀的新一代旋流燃烧器。
A three-dimensional PDA system was used to test the gas-solid flow characteristics at the outlet of radial-thick swirling pulverized coal burners and volute burners on a gas-solid two-phase experimental bench. It was found that the former formed a higher Particle concentration, the concentration of particles in the central reflow zone is also larger, the latter in the central reflow zone and the edge of the particle concentration is smaller, the wall area is larger. The influence of two-phase flow characteristics on the performance of the burner was analyzed and verified by industrial tests. The results show that the radial-thick swirling pulverized coal burner is a kind of burner with high efficiency, stable combustion and low pollution, preventing slagging and preventing high temperature Corrosion of the new generation of swirl burner.