Practical new technology for extracting rapeseed oil

Squeezing oil is widely used in the vast rural areas as a small oil production process, but only by mastering the correct operating techniques can improve the oil rate and reduce production costs. The operation is as follows: First, clean up the raw rapeseed and shake it with a vibrating sieve to remove the impurities. If it is necessary to remove the side-by-side mud in the rapeseed material, use a Wolong iron roller to grind the rice over-grinding, and then use a rake to remove the crushed ash. The content of impurities in the final material should not exceed 0.5%, and the iron impurities contained in the material must be strictly prevented from entering the press. Second, break the skin using a small roller mill, so that the rapeseed grain breaks. It is required that the broken skin does not fall off and it will not be crushed. It is "open-laughing" and the rate of broken skin is not lower than 85%; the powder level is not more than 5%. The feed should be even during operation, the flow rate should be appropriate, and the spacing of the roller must be properly adjusted. . 3. Add the waterseed material into the pan, add some hot water while stirring, and add water to the 13-15% of the water content in the material. Fourth, fried oil mill equipment more use of frying pan (can also use the cylinder fried fry pan, the effect is good), the final material temperature of the frying material is 120-132 degrees Fahrenheit, stir fry clinker does not expose the material, there is oil Elasticity, loosening, and evenness are not uniform. The residual moisture of the clinker after frying is about 2.0%. At the same time to ensure that the material into the press temperature of 120-125 degrees Fahrenheit. V. After pressing and squeezing the preheating is normal, you can begin cast clinker, and adjust the cake thickness of 1.25-2.5 mm. The effect of pressing is good or bad, you can randomly determine whether the speculation is qualified. Therefore, the crushing operation must be observed, diligently checked and frequently adjusted. In order to increase the oil output of the press as much as possible, the pressed cake should be adjusted to be thinner, but it is required that no smoke and scorching be allowed in the cake, and the residue of the dried cake is controlled between 5-6%. 6. The crude oil extracted from the crude oil treatment enters the oil pool and is first precipitated to remove solid impurities. If further impurity removal is required, a filter must be provided to obtain clear oil.

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