Method for rapidly separating waste blended filter material

The invention discloses a method for rapidly separating a waste blended filter material, and relates to the technical field of filter material recovery. The method comprises the following steps: (1) freezing and crushing the blended filter material by liquid nitrogen through a ball mill to obtain particles; and (2) preparing zinc salt solutions with different densities, putting the particles into the zinc salt solutions for density grading and centrifugation, respectively collecting upper-layer floating objects and bottom sediments, and performing drying after cleaning. The method has the beneficial effects that the operation is simple, the separation efficiency is high, special instruments and corrosive reagents are not needed, the method has a very good reduction effect on the original components of the mixture, and blended filter materials with different components can be separated. 本发明公开一种快速分离废旧混纺滤料的方法，涉及滤料回收技术领域，本发明包括以下步骤：(1)将混纺滤料通过球磨机液氮冷冻粉碎，得到颗粒物；(2)配制不同密度的锌盐溶液，将颗粒物置于锌盐溶液中进行密度分级，离心，分别收集上层漂浮物和底部沉淀，清洗后，烘干