Oil extraction by pressing
Oil extraction by pressing, press method has a long history of taking fat, depending on the type of soil can be divided into virgin oil press, water press, screw press three types. With the development of oil press, hit thepress, hammer virgin, virgin soil and other pressing human screw and hydraulic press has basically beeneliminated.
Oil extraction by pressing currently more widely used crushing equipment is screw press, which is generallymore advanced international press area of continuous Modern have equipment. Compared with virgin soil, hydraulic machines and other intermittent oil extraction equipment, the advantage of large capacity,continuous production, small labor intensity, the oil rate. Screw press of the work process, in a nutshell, that isdue to the rotation of the screw shaft to promote the role in the virgin bore, virgin material is continuouslymove forward.
Oil extraction by pressing, extra virgin screw pitch due to narrowing or root diameter increases, so that the volume of space within the virgin bore shrinking produce squeezing effect. In this process, the virgin material is pushed and compressed, pressed from the grease squeezed out of the gap in the cage, and the residue was pressed into a cake is discharged continuously from the end of the pressing shaft.
