Low-temperature evaporation recovery system for diaminomaleonitrile reaction solvent

The utility model relates to the technical field of diaminomaleonitrile reaction solvents, and discloses a low-temperature evaporation recovery system for a diaminomaleonitrile reaction solvent, which comprises a flash evaporator, a flash mechanism is arranged in the flash evaporator, and the top of the flash evaporator is in an inverted cone shape; the flash evaporation mechanism comprises a motor, a rotating rod, a connecting rod and a scraping plate, the motor is connected with the flash evaporation evaporator, an output rod of the motor is connected with the rotating rod, the rotating rod is connected with the connecting rod, and the connecting rod is connected with the scraping plate. Through the flash evaporation mechanism, a diaminomaleonitrile reaction solvent with thermal instability is recovered in a flash evaporation mode, the reaction solvent can be separated out at a lower temperature, under the condition that the product yield is not reduced, the amount of industrial water added in the crystalli