The utility model discloses a reation kettle is dissolved to high -efficient braking formula of mixing belongs to sodium silicate production facility technical field, personally experience sth. Part of the body, connect cylinder and bearing in the external side of cauldron including the cauldron, form heating channel between the cauldron body and the cylinder, the one end of cylinder is equipped with the pivot, and the other end is equipped with the body with the heating channel intercommunication, and pivot and body all rotate the setting with the bearing mutually, the inside of body is equipped with the steam pipe, be equipped with drive gear A and gyro wheel on the outer wall of cylinder, the outside cladding of pivot has the steam outlet who communicates with heating channel, and the tip of pivot is equipped with the flywheel, and the flywheel sets the brake pads to its braking, the brake pads slides along the radial direction of flywheel and sets up the lateral wall at the bearing, be equipped with the fixing base on the outer wall of cylinder, the fixing base is equipped with the carrier bar that stretches into the internal portion of cauldron along the radial direction of cylinder, rotate on the carrier bar and be provided with stirring vane, solve present heating structure complicacy, the relatively poor problem of leakproofness.