Supercritical fluid extraction reaction device

The utility model relates to the technical field of solvent extraction, in particular to a supercritical fluid extraction reaction device which comprises a kettle body, the kettle body is provided with an inner wall surface surrounding the center line of the kettle body, and a liquid inlet channel for liquid materials to be extracted to enter and flow to the inner wall surface of the kettle body is arranged on the kettle body. The reaction device further comprises a scraping mechanism arranged on the kettle body, the scraping mechanism comprises a scraping part which is rotatably arranged by taking the center line of the kettle body as a rotating axis, the scraping part is positioned in the kettle body, and the scraping part is used for scraping a liquid material on the inner wall surface during rotation so as to form a liquid film on the inner wall surface; the large surface area of the inner wall surface of the kettle body can increase the contact area of the liquid material and the supercritical fluid in t