Reaction kettle capable of automatically relieving pressure

The utility model discloses a reaction kettle capable of automatically relieving pressure, which comprises a bearing frame, a reaction kettle body and a pressure relief device, the four corners of the lower surface of the bearing frame are all fixedly provided with support columns, a support plate is arranged among the support columns, the upper surface of the support plate is provided with a material collecting box, the left side of a box door is provided with a hinge plate, and the hinge plate is provided with a pressure relief device. A heat absorption layer is adhered to the rear side of the reaction kettle body, the pressure relief device is mounted on the right side of the inner reaction kettle body, a movable plug is mounted in the pressure relief device, a traction rod is connected to the right side surface of the movable plug, and a valve is mounted on the right side surface of the pressure relief device. According to the reaction kettle capable of automatically relieving the pressure, the automatic