The main principle of the screw press

When the oil press is in operation, the processed oil enters the squeegee from the hopper. From the squeeze spiral, the embryo is continuously pushed in and pressed. Since the embryo is carried out under the action of the squeezer in the oil press, under the condition of high pressure of pressing, a large frictional resistance is generated between the embryo and the snail, the embryo and the squeezing, so that It can cause friction between the micro-materials and cause relative motion. On the other hand, since the diameter of the root garden of the snail is gradually thickened, the pitch is gradually reduced, so that when the snail is rotated, the thread can push the embryo forward, and can be turned outward, and close to the screw thread. The layer of material on the surface also rotates with the shaft. Thus, each of the embryo particles in the squeegee is not at the same speed, moving in the same direction, but there is also relative motion between the particles. The heat generated by the friction satisfies the heat necessary for the operation of the oil extraction process, helps to thermally denature the protein in the embryo, destroys the colloid, increases the plasticity, and also reduces the viscosity and the oil is easily precipitated. The oil extraction rate of the oil press is increased, and the oil in the material is squeezed out, and flows out from the gaps of the garden row and the gaps of the strips.