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通过分析传统的煤粉燃烧器设计时一次风管中煤粉浓度与一次风量和一次风速的关系发现，对于低挥发份煤，燃烧器出口的煤粉浓度很难达到着火燃烧所需的最佳浓度，从而提出将煤粉浓度作为一个重要参数在输粉系统及燃烧器设计时予以考虑。提出了新的煤粉浓淡燃烧器设计方法，为输粉系统设计提供了依据。
By analyzing the relationship between the pulverized coal concentration in the primary duct and the primary air flow and the primary air velocity in the design of the traditional pulverized coal burner, it is found that the pulverized coal concentration at the outlet of the burner is hard to achieve the best required for the combustion of the low-volatile coal Concentration, which put forward the pulverized coal concentration as an important parameter in the powder feeding system and burner design to be considered. Proposed a new pulverized coal burner design method for the powder feeding system provides the basis for the design.