Spraying device and spraying system

The embodiment of the invention discloses a spraying device and a spraying system.The spraying device is used for spraying a tank container, the tank container comprises a tank body and an end frame arranged at the end of the tank body, the spraying device comprises a base, a supporting mechanism and a spraying mechanism, and the supporting mechanism is arranged on the base in a liftable mode; the spraying mechanism comprises a rotating part and a first spraying unit, the rotating part is rotatably connected to the supporting mechanism around the axis of the tank body, and the first spraying unit is adjustably arranged on the rotating part so as to spray an included angle area formed by the end socket and the end frame of the tank body. The first spraying unit can spray the included angle area formed by the end socket and the end frame of the tank body, the problem that in the prior art, automatic spraying is difficult to achieve for some areas limited by the space size is solved, the automatic ...