Four kinds of oil screening methods
Today I will tell you several screening methods of oil, we all know that oil is to be filtered to press, if not screened for pressing first of all is very bad for mechanical equipment, card material, low oil yield many problems, in addition, if not screened will appear the purity of oil is not high, affect the taste, so the screening of oil is very necessary.
1. Screening method
That is, by using the difference of particle size, shape and density between oilseeds and impurities, the upper and lower layers or the combination of front and back sections with the help of screen surface opening size, length to width ratio (2~3), and combined with the principle of relative motion (amplitude, speed), gravity classification, impurities larger than and smaller than the aperture will be separated. Such as early cleaning screen, self - balancing vibrating screen, plane rotary screen, round playing screen.
2. Wind separation method
According to the difference of density and suspension speed between oilseeds and impurities, the method of separating dust and other impurities by the action of wind is proposed. Generally not used alone, mostly combined with screening. Separate use of air suction, wind separator and so on.
3. Magnetic separation method
The method of using magnetic steel suction to clear the magnetic metal impurities mixed in grapefruit. The main permanent magnet, magnetic separator, permanent magnet cylinder and permanent magnet drum and electromagnetic cylinder iron removal device, belt type electromagnetic magnet machine; Cylinder magnetic separator, etc.
4. Water separation method
Direct contact of oilseeds with water can wash away the mud on the surface of oilseeds, and can settle to remove heavy mud and stone blocks. Such as sesame, rapeseed water peeling and so on.
