The principle of screw press
When the screw press runs, the oil is processed from the hopper into the squeeze chamber. The material embryo is pushed forward continuously by squeezing the screw to make the pressing. Because the material embryo is carried out under the condition of the spiral press, under the condition of pressure, Screw Oil Press the friction between the feed embryo and the squeeze screw, the feed embryo and the pressing chamber is very large, which can cause friction between the material embryo micro-material and the relative motion. On the other hand, because the diameter of the root of the screw is gradually thickened, the pitch is gradually reduced, Screw Oil Press so when the screw rotation, the thread hard feed embryo can move forward, but also to flip outward, at the same time near the screw thread surface of the material layer still with the squeezing shaft rotation. In this way, each germ particle in the cylinder is not equal to the velocity, moving in the same direction, but there is also a relative motion between the particles. The heat produced by friction satisfies the necessary heat in the operation of the oil extraction process. It helps to induce protein denaturation in the embryo, destroys the colloid, increases plasticity, and also reduces the viscosity easy to precipitate oil, thus enhances the oil yield of the spiral oil press, and causes the fuel in the material to squeeze out, Screw Oil Press and outflow from the garden row crevice and the row crevice.
The main part of the Screw press is the pressing Chamber, which is composed of a squeezing cage and a spiral shaft rotating in the cage. Its working process is to use the spiral axis of the spiral Guide to reduce or the diameter of the root circle gradually increased, Screw Oil Press stir-fried material embryo into the chamber after the under the action of screw thread rotation, the volume of squeezed chamber is reduced and the squeezing effect is squeezed; the squeezed oil squeezes out from the slot of the squeeze cage, and the residue is pressed into a chip cake, which is continuously discharged from the end of the squeezing shaft. Screw Oil Press The pressure extracting oil can be divided into three stages, i.e., feed (preloading), main squeeze (oil), and cake (pressure drain). Gradually the feeding end is pushed toward the end of the cake. Since the diameter of the screw thread is changed from small to large, Screw Oil Press the volume of each section in the squeeze chamber is gradually reduced, and the screw thread continuously pushes the feed embryo into the pressing chamber, which pushes the product pressure, compresses the material embryo and squeezes out the oil. At the same time to adjust the cake gap to change the thickness of the cake, the smaller the gap, the thinner the cake, the pressure in the chamber is greater. In addition, the feed embryo is in the chamber of Motion, Screw Oil Press causes the material embryo and the row, the Garden Platoon, the material embryo and the squeeze snail, the material embryo and the material embryo friction, and produces the massive heat, causes the material embryo in the barrel inside the temperature to gather rises, such advantageous material embryo inside fat outflow, enhances the oil rate.
Spiral Oil press is to make the billet in the cylinder continuous forward, in the dynamic extrusion to extract the machine. In addition to the feeding bucket, the cylinder is the main operating part, consisting of a squeeze screw shaft and a cylindrical squeeze cage. There are two forms of single-stage and two-stage presses, with only one recumbent chamber, a double level plus a straight cylinder for the first stage of squeezing. Screw Oil Press The screw shaft is composed of a plurality of squeezing screws and a trap mounted on the shaft. Each screw has a certain pitch and a screw depth, and the pitch of each screw on one axis is shortened gradually from the feed mouth to the discharging port. The depth of the snail gradually becomes shallow, Screw Oil Press so that the volume from the inlet to the export gradually reduced, the billet into the cylinder after the squeeze spiral to the exit, the pressure gradually become larger, so that the oil will be squeezed. A cylinder-shaped cage is filled with gaskets between the squeezed strip and the press Bar to form an oil gap, and the extruded oil is flowed through this gap. Large-scale spiral press squeeze Cage also equipped with scraper, scraper mouth deep squeeze, aiming at each distance ring, Screw Oil Press to prevent the billet in the cylinder in the sliding, and prevent the return of the billet, and use to adjust the cake thickness, thereby controlling the pressure, reduce the residual oil rate. In addition, the machine also makes slag cake on the surface of the cake-making mechanism, and often accompanied by a steaming wok, can make the steam fry and squeeze continuous.