Machine structure: Utilizing the differences in particle size, density, and aerodynamic properties among solid particles (e.g., sunflower seeds), with the aid of a negative pressure suction device and an eccentric spring plate structure that reciprocates, the material is screened to remove stones, and dust is reduced by a dust removal device.

Machine Functions and Features: This stone remover is designed for the continuous removal of impurities such as stones, sclerotia, and large pebbles from granular materials (e.g., sunflower seeds, gourd seeds, etc.), with particularly effective performance in removing the naked kernels from sunflower seeds. Under the action of the directional inclined reciprocating motion of the stone removal plate, the sinking stones move towards the stone outlet end, while the materials floating on the upper layer roll towards the discharge end due to their own weight, thereby separating the impurities such as stones, sclerotia, and naked kernels from the materials. An adjustable suction hood device is equipped on the stone remover to suspend the materials, enabling better separation of impurities. A low-noise axial fan is used, ensuring no dust emission, with similar negative pressure on the stone removal plate surface, uniform wind force passing through the stone remover, and convenient air volume adjustment. The inclination angle of the stone remover can be adjusted between 10-14 degrees, making it better suited for removing stones from different types of granular materials.