Blade and sand mill with same

The invention discloses a blade, which relates to the technical field of sand mill blades, and comprises a transmission shaft sleeve, a fixed shaft rod, a main body blade and an auxiliary blade. The invention further discloses a sand mill with the blades. The sand mill comprises a rack, a sand milling cylinder, a cover plate and a driving motor. The transmission shaft sleeve is arranged, the main body blade is arranged on the outer side of the transmission shaft sleeve, the auxiliary blades are arranged on the outer side of the main body blade, and the main body blade can rotate along with the transmission shaft sleeve to realize stirring driving of materials, so that sanding treatment of the materials is realized; the auxiliary blades can rotate on the outer sides of the main body blades so as to widen the acting range of the main body blades on the materials and meanwhile widen the motion range of the materials after the materials are acted, and therefore the effect of improving the grinding effect of the d