Groove type ashing device

The utility model provides a groove type ashing device which comprises a groove body and a stirring assembly, an ashing groove is formed in the groove body, a feeding port and a discharging port are formed in the groove body, and the ashing groove is of a U-shaped structure; the stirring assembly comprises a stirring shaft, a propelling mechanism, a stirring mechanism and a driving assembly, and the stirring shaft is arranged in the ash melting tank and rotationally connected with the tank body; the propelling mechanism comprises a spiral plate and a connecting assembly, the spiral plate is arranged around the stirring shaft and spaced from the stirring shaft, a preset distance is spaced between the outer side of the spiral plate and the inner wall of the ash melting tank, and the spiral plate is used for forwards pushing residues deposited at the bottom of the ash melting tank in the process of rotating along with the stirring shaft; the connecting assembly is connected with the stirring shaft and the spiral