Ultrasonic-assisted hydrothermal liquefaction device and use method thereof

The ultrasonic-assisted hydrothermal liquefaction device comprises a tank body and a digital display control panel, the tank body is in a cylindrical shape, the interior of the tank body is hollow, an opening is formed in the upper side of the tank body, and a tank cover is arranged at the position of the opening in the upper side of the tank body; an ultrasonic assembly used for achieving a plurality of ultrasonic vibration layers in the tank body and an edge scraping rod structure used for stirring liquid in the tank body and scraping and washing the inner wall are arranged in the tank body, and a motor used for driving the ultrasonic assembly and the edge scraping rod structure to rotate is fixedly arranged on the tank cover; a plurality of annular heaters are evenly distributed on the inner side of the tank body in the axial direction of the tank body, ultrasonic vibration layers formed by the annular heaters and the ultrasonic assemblies are distributed in a spaced and crossed mode, and under rotation of