Uranium ore concentrate dissolving device and method

The invention relates to the technical field of uranium ore concentrate dissolving, in particular to a uranium ore concentrate dissolving device and method.The uranium ore concentrate dissolving device comprises a dissolving tank, a discharging mechanism, a stirring mechanism, a temperature control mechanism and a tail gas recycling mechanism, and the discharging mechanism guarantees the feeding accuracy, strictly controls the feeding speed and prevents overflowing of a tank; mechanical stirring and compressed air stirring in the stirring mechanism are operated at the same time, so that the dissolution rate of U3O8 materials is increased, the working efficiency is improved, the safety risk is reduced, NO can be converted into NO2 while stirring is enhanced, and the recycling rate of nitric oxide is increased; the tail gas recovery mechanism can be used for fully recovering NO and NO2 generated by the reaction, so that the acid loss is greatly reduced, the acidity of the dissolving solution is ensured to reach