Device for improving crystal stability by continuously and rapidly reactive crystallization

The utility model discloses a device for improving crystal stability by continuously and rapidly reactive crystallization. The device comprises a kettle type reactor and a tube-type reactor connected with the kettle type reactor in series, wherein a fluid jet impact feeding device is arranged in the kettle type reactor; the fluid jet impact feeding device comprises a hollow tube and more than two feeding tubes; through holes through which the feeding tubes penetrate are formed in the tube wall of the hollow tube; the feeding tubes are inserted from the upper end of the hollow tube and penetrate through the through holes in the tube wall; the openings of the feeding tubes are connected with nozzles; the discharge hole of each feeding tube and/or nozzle is fixed at the lower end part of the hollow tube through a fixing rack; the nozzles are arranged in a mode of ensuring that the discharge materials colloid and impact with each other; the feeding tubes between the through holes in the hollow tube and the fixing rack are of an arced structure. The crystal prepared by using the device is uniform in average size and granularity, and the purity and the stability of a product are greatly improved.