The utility model discloses a
drying pretreatment device for soil heavy
metal detection, which belongs to the technical field of soil detection
drying and comprises a box body, the inner wall of the box body is fixedly connected with a plurality of placing rods, the surfaces of the placing rods are fixedly connected with positioning rings, the surfaces of the placing rods are in
lap joint with vessels through the positioning rings, and the vessels are in
lap joint with the inner wall of the box body. A plurality of heating rods are fixedly connected to the inner wall of the box body, a lifting
assembly is arranged on the inner wall of the box body and comprises a plurality of sliding rails, a plurality of sliding blocks, a connecting plate and an electric push rod, a
grinding assembly is arranged on the surface of the connecting plate, and by arranging the
grinding assembly, a rotating shaft drives a plurality of
grinding rods to rotate; and meanwhile, the multiple grinding rods rotate automatically, so that caked soil is ground conveniently, a vessel is sealed conveniently by arranging a baffle, dust is prevented from floating, the vessel is positioned conveniently by arranging a positioning ring, and the grinding rods enter the vessel conveniently.