负压去石机是在封闭的去石机抽/向上吸风，相当于把物料向上提起来从而形成

Negative stoner is closed to stone extraction / suction direction, which is equivalent to lift the material to form a layered material is formed over a light material, the heavy material below. <br><br>Heavy material near the bottom surface of the preparation of the mesh, a large friction force, so that the inclined surface is moved upward in the screen, flow out from the outlet end. Material upper / layer is small, moves downward, the outlet flows from low

Negative pressure de-stone machine is in the closed de-stone machine pumping / upward suction, equivalent to lifting the material up to form a material layering, forming light material above, heavy material in the lower.<br><br>The heavy material below is close to the preparation mesh screen, the friction is large, so that it moves upward on the tilted sieve surface and flows out of the high-end outlet. The material above/layer is small, moves down, and flows out of the low end exit

The negative pressure stone remover is a closed stone remover to draw / up the air, which is equivalent to lifting up the material to form the material stratification, forming the light material at the top and the heavy material at the bottom.<br>The lower heavy material is close to the screen surface of the weaving mesh, so the friction force is large, so it moves upward on the inclined screen surface, and flows out from the high-end outlet. The material in the upper / layer is smaller, moving downward and flowing out from the low-end outlet<br>