为有效治理煤炭生产过程中所产生的煤尘，以榆树岭煤矿可吸入煤尘为研究对象，采用D−优化设计法，建立了抑尘剂配比与蒸发量、成膜时间之间的回归模型，探究了脂肪酸甲酯磺酸钠、聚丙烯酸钠以及氯化钙的最优配比，分析了三者的单因子作用与因子间交互作用，并通过硬度、抗风蚀性、保水性等特征参量研究了其抑尘性能。结果表明：抑尘剂的蒸发量和成膜时间受单因子影响及因子间交互作用的影响；以最佳配比制备的抑尘剂 Ⅰ （产物）成膜时间为36 min，蒸发量为2.5 g，与回归模型预测结果基本一致；喷洒产物于煤尘表面后，硬度达到78 HA，平均蒸发量低于0.1 g；在10 m/s的风速作用下，抑尘率为95.5%；喷洒抑尘剂的煤样表面颗粒出现明显黏结团聚，形成了固化层抵御风流扰动，有效降低了粉尘的飞扬能力。

To effectively control the coal dust generated in the coal production process, taking the respirable coal dust of Yushuling Coal Mine as the research object, the D-optimal design method was used to establish the regression model between the ratio of the dust suppressant and the evaporation amount, film-forming time, to investigate the optimal ratio of sodium fatty acid methyl ester sulfonate, sodium polyacrylate, and calcium chloride, to analyze the single-factor effect of the three factors and the factor interaction, and to study its dust suppression performance by the characteristic parameters such as the hardness, the wind erosion resistance, water retention, etc. The results showed that the dust suppression performance of the dust suppressant is very good. The results showed that the dust suppression performance of the dust suppressant was very good. The results showed that the evaporation amount and film-forming time of the dust suppressant were affected by the effects of single factors and interactions among factors; the film-forming time of the dust suppressant Ⅰ (product) prepared with the optimal ratio was 36 min, and the evaporation amount was 2.5 g, which was basically in line with the prediction results of the established regression model. After spraying the product on the surface of coal dust, the hardness reached 78 HA, and the average evaporation was lower than 0.1 g. Under the action of 10 m/s wind speed, the dust suppression rate was 95.5%; the particles on the surface of the coal sample sprayed with the dust suppressant appeared to be bonded and agglomerated, forming a solidified layer to resist the disturbance of the wind flow and effectively reducing the flying ability of dust.