Precipitating and filtering system in the production process of theaflavin

The utility model relates to a precipitating and filtering system in the production process of theaflavin. The precipitating and filtering system is characterized by comprising a rotary dissolving tank (1), a multi-stage filtering groove (2), a settling kettle (3), a vacuum suction filter (4) and a storage tank (5) which are connected in sequence and in series. The precipitating and filtering system has the advantages that coarse filtration, the settling kettle for settlement and suction filtration are respectively adopted, centrifugal arrangement is not adopted, the energy consumption is low, the foam can not be generated, the material loss is less, the liquid discharging is convenient, the impurity removal is thorough and the deslagging is convenient.