| abstract |
The utility model provides a kind of device for evaporative crystallization, the device includes container for evaporation, crystallisation vessel, the device for evaporative crystallization further includes first circulation unit and second circulation unit, first circulation unit include sequentially connected first be in charge of, first circulation pump, first circulation inlet pipe；The second circulation unit include described sequentially connected second be in charge of, second circulation pump, heater and second circulation inlet pipe, first circulation inlet pipe and second circulation inlet pipe are connected in container for evaporation.By being provided with additional first circulation circuit, and part fine grain is imported into crystallisation vessel as nucleus again, finally obtains the product that particle is more uniform and grain diameter is controllable. |