Spiral oil press

Abstract

The invention discloses a spiral oil press. The spiral oil press comprises a pressing barrel and a feeding part for providing oil for the pressing barrel, wherein the pressing barrel comprises a pressing cage and a pressing screw shaft; the pressing cage comprises an upper pressing cage casing and a lower pressing cage casing; the pressing screw shaft comprises a mandrel as well as a pressing screw and a spacing ring which are assembled on the mandrel; the feeding part comprises a feeding bin and a stirring part arranged in the feeding bin; the feeding bin is provided with a feeding opening and a discharging opening; the feeding opening is downwards provided with an extending section; internal threads are arranged on the inner wall of the extending section; a filtering element is also arranged on the discharging opening; external threads matched with the internal threads are arranged on the outer surface of the filtering element; and a plurality of holes which are uniformly distributed are formed in the filtering element. By arrangement of the filtering element, the speed and the weight of the oil in the feeding bin entering the pressing barrel are limited, so that the condition that the pressure in the pressing barrel is suddenly increased and further explosion is caused due to the fact that the speed of the oil entering the pressing barrel is over high or the amount of the oil is over great is reduced, and potential safety hazards are reduced.

Description

technical field [0001] The invention relates to an oil press, in particular to a screw type oil press with a filter element. Background technique [0002] Oil press refers to a machine that squeezes oil out of oil by means of external mechanical force. When the oil press is running, the processed oil enters the press chamber from the feeding device. Under the action of screw thread rotation, the feed inlet gradually advances toward the cake outlet. The volume of each section in the press chamber is gradually reduced; and because the press screw thread continuously pushes the raw material into the press chamber, the pressure is generated by pushing forward and backward, compressing the oil, and squeezing the oil out. Since the oil material enters the press chamber too fast at the beginning of pressing, the pressure in the press chamber will suddenly increase, which may cause the screw shaft to not rotate, resulting in blockage of the press chamber, and even rupture of the p...

AI Technical Summary

Problems solved by technology

Since the oil enters the press chamber too fast at the beginning of pressing, the pressure in the press chamber will suddenly increase, which may cause the screw shaft to not rotate, causing the press chamber to be blocked, and even the press cage to be broken. Major accident

Similarly, if during the oil extraction process, the speed of the oil entering the pressing chamber is fast and slow, and the amount of oil is more or less, it will also affect the oil yield and oil quality.

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