Waste PGMEA diluent distillation residual liquid decrement and solvent recovery device

The utility model discloses a waste PGMEA diluent distillation residual liquid decrement and solvent recovery device. The device mainly comprises a scraper evaporator, a stirring reaction kettle, a sedimentation centrifuge, a distillation tower, a distillation kettle, a condenser, a vacuum system, an auxiliary material tank and a product tank which are sequentially connected through pipelines and pumps. According to the method, a lewis base solution 1-aminoethanol is preferably used as an auxiliary material to initiate the PGMEA distillation residual liquid to react and settle, a PGMEA solvent is separated and recycled in a centrifugal sedimentation and distillation mode, and excessive 1-aminoethanol and solid residues are recycled. According to the device, a solvent and distillation residues in the waste PGMEA distillation residual liquid are further separated, so that the reduction of hazardous wastes is realized, valuable PGMEA organic solvent components in the waste PGMEA distillation residual liquid are