Vegetable oil pressing device based on cross flow filtration

The invention discloses a vegetable oil pressing device based on cross flow filtration. The vegetable oil pressing device comprises a pressing screw device, filtering devices and a storage device. Thepressing screw device comprises an oil pressing cage, a pressing screw shaft, an oil outlet and an adjusting device; the adjusting device adjusts distribution of pressure along the axis of a screw bycontinuously adjusting the opening degree of an adjusting valve; the pressing screw shaft is sequentially divided into a pre-pressing section, a multi-stage pressing section and a cake forming section from an oil crop inlet to the adjusting device; an oil outlet is formed in the position, between the multi-stage pressing section and the cake forming section, of the lower portion of the oil pressing cage; the multiple stages of filtering devices are arranged under the oil outlet from top to bottom in sequence; an outlet of the lower portion of the filtering device is connected with the storagedevice; and the storage de