对表面活性剂型助滤剂在过滤过程中的作用进行了系统地动态研究，总结了表面活剂型助滤剂在过滤过程中的行为规律。表面活性剂强化物料过滤过程的贡献主要表现在滤饼脱水阶段，且脱水时间越长、助滤效果越好。表面活性剂降水效果受到一定的过滤条件和物料性质的约束。对同种物料，粒度性质不同、过滤条件不一样（如过滤压差和脱水时间不同），表面活性剂所表现的助滤效果差别颇大。 The role of surfactant-based filter aid in the filtration process was systematically and dynamically studied. The behavior of the surfactant-based filter aid during the filtration process was summarized. The contribution of the surfactant-enhanced material filtration process is mainly manifested in the filter cake dehydration stage, and the longer the dehydration time, the better the filter aid effect. Precipitation effect of surfactant is subject to certain filtering conditions and material properties. For the same material, different particle size, different filtration conditions (such as filtration pressure difference and dehydration time), the surfactant showed quite different filter aid effect.