The relationship between screw oil press and pressing stages
Screw oil press is the oil press in the press chamber in the process of pushing, the press screw thread gradually becomes shallow, the press chamber volume gradually becomes smaller, the oil embryo is blocked, and then constantly push the embryo forward to produce pressure and temperature, so as to extruder the oil from the embryo to separate.
Under normal circumstances, more than 90% of the oil has been squeezed out of the oil after a pressing of the oil embryo. Therefore, when increasing the pressing stage, only less oil can be squeezed out. In order to squeeze out more oil products at one time, the press chamber can be designed for three times pressing or four times pressing, three times pressing space is divided into three pressing areas, set up two high pressing screw; Four-level pressing is to divide the pressing space into four pressing areas and set up three high pressing screws.
Blind use of five or six level pressing will lead to: 1, the pressing yield will be reduced 2, the oil quality will be reduced 3, the oil efficiency will be reduced 4, the use cost will be increased
When grade 5 and 6 pressing increases the extrusion pressure, it is inevitable to increase the pressing load, so the power consumption increases, the accessories wear increases, the operation difficulty increases, and the number of maintenance increases. It is only suitable for a few areas of cold pressing, but cold pressing is not desirable in principle, which increases the waste of resources, and the user's use cost will rise.
It can be seen that the five-stage pressing and six-stage pressing can not improve the oil production efficiency and increase the pressing amount for the hot-pressed oil, but also reduce the quality of oil products and oil cakes, increase the power loss, shorten the service life, and directly affect the economic benefits of the purchasers. Therefore, here we sincerely suggest that the majority of users friends reasonable choice of pressing series, to buy the oil press must choose the strength, the scale of the manufacturer.
