稳燃腔煤粉燃烧器对不同煤种燃烧稳定性的研究

A Study of the Combustion Stability of Pulverized Coal Burners with a Combustion stabilization Cavity When Firing Various Kinds of Coals

本文利用三维粒子动态分析仪测量了稳燃腔煤粉燃烧器回流区的流场．并比较了钝体不同位置的回流区特征。实践说明通过调整钝体的位置及改变稳燃腔煤粉燃烧器的某些结构尺寸，可以极大的改善不同煤种的燃烧稳定性。

With the help of a three-dimensional particle dynamic analyzer a measurment was performed of the return flow zone flow field of a pulvetized coal burner equipped with a combustion stabilization cavity and a comparison was made of the return flow zone characteristics at various locations of a bluff they. The authors practice has shown that through an adjustment of the location of the bluff they and the change of some structural dimensions of the abevecited burner it is possible to achieve a significant improvement of the combustion stability when burning various finds of coals.