Evaporative crystallization device for high-purity ammonium paratungstate

The utility model belongs to the field of evaporative crystallization and particularly relates to an evaporative crystallization device for high-purity ammonium paratungstate. The evaporative crystallization device for the high-purity ammonium paratungstate aims to overcome the defects that impurities exist in crystallization, the yield is low and the production cost is high in the prior art. The evaporative crystallization device for the high-purity ammonium paratungstate comprises an impurity removing device, a crystallization device, a condensing device and a PLC control system. The impurity removing device comprises a valve I, an impurity pipe, an impurity groove and a layering groove. The crystallization device comprises a filtering membrane, a valve II, a flowmeter, a crystallization pipe, a humidity sensor, a crystallization tank, an air cylinder, a cleaning plate, a heating base and a valve III. The condensing device comprises a condenser, a condensing pipe and a condensing tank. The evaporative crystallization device has the automatic discharging function, the situations that crystallization of the ammonium paratungstate is impure, and the yield is low are avoided, the impurity removing cost is low, the effect of environmental protection is achieved, and the produced ammonium paratungstate crystallization is large.