Edible oil refining New design oil extraction equipment for soybean oil extraction plant includes a series processing procedures as degumming, neutralization, bleaching, deodorization and winterisation. In general there are two methods of vegetable/edible oil processing, one is physical refining and the other is chemical refining. However, no matter what kinds of reining methods Small Coconut Oil Mill Machinery, Shandong Leader Machinery Co.,ltd. are all done with the help of various oil processing equipment and machinery, and are used to refine almost all kinds of oil extracted from oil seeds like sunflower seeds, peanuts , sesame seeds, and soya bean seeds etc.
Main Steps of Edible Oil Refining: Small Coconut Oil Mill Machinery Crude Oil Degumming: In this step gums in crude oil are removed by hydration with the help of phosphoric acid.Neutralization: In this step free fatty acids are neutralized by using sodium hydroxide and convert them into soap. Additional impurities are also removed by adsorption on soap.Bleaching: During bleaching, unwanted pigments are adsorbed physically and oil will become much clearer.Deodorization: Deodorization is used to remove unacceptable odors by steam distillation, the odoriferous compound are stripped off with the help of live injected steam into heated oil under high vacuum pressure.Dewaxing (necessary for cold areas)Some kinds of oil like sunflower, maize germ or corn oil have waxes inside, if these Shandong Leader Machinery Co.,ltd. impurities are not removed, the oil will freeze easily under low temperature, thus effecting oil quality and appearance. so this process is necessary in extremely cold areas.
New design oil extraction equipment for soybean oil extraction planttn plant
Rotocel Etraction
Process features for soybean oil extraction plant
1. Adopt stainless steel fied grid plate and increase the horizontal grid plates, which can prevent the strong miscella from flowing back to the blanking case, so as to ensure good etraction effect;
2. The rotocel etractor is driven by rack, with unique rotor of balanced design, low rotating speed, low power, smooth operation, no noise and quite low maintenance cost;
3. The feeding system can adjust the rotating speed of airlock and main engine according to the feeding quantity and maintain a certain material level, which is beneficial to the micro negative pressure inside the etractor and reduce the solvent leakage.
4. The advanced miscella circulation process is designed to reduce the fresh solvent inputs, reduce the residual oil in meal, improve the miscella concentration and save energy by reducing the evaporation capacity.
5. The high material layer of the etractor helps to form immersion etraction, reduce the meal quality in miscella, improve the quality of crude oil and reduce the evaporation system scaling.
6. Specially suitable for the etraction of various pre-pressed meals.
Main economic and technical parameters for soybean oil extraction plant
Capacity |
300T/D |
Residual oil in meal |
1% (soybean) |
Solvent consumption |
2Kg/T (No.6 solvent oil) |
Crude oil moisture and volatile matter |
0.30% |
Power consumption |
15KWh/T |
Steam consumption |
280KG/T (0.8MPa) |
Finished meal moisture |
13% (adjustable) |
Residual solvent in finished meal |
300PPM(qualifieddetonated eperiment) |
Towline extractor
Towline extractor Advantages:
1) The material is divided into several independent units on the material bed, which can effectively prevent miscella at all levels from fleeing hither and thither on the material layer and ensure the concentration gradient between
several sprays.
2) Immersion area appears in each lattice, which can help achieve better immersion effect.
3) The chain bo is supported by track and can prolong the service life of screen deck by not touching it.
4) The towline extractor is driven by world leading double-shaft hydraulic motor, with balance force, reliable operation and less maintenance cost.
5) Specialty suitable for the extraction of high oil and high power materials, and better immersion effect can be expected for ordinary oil plants.
Main Economic and Technical Parameters of Towline extractor (take 500T/D as an example)
Steam consumption |
280kg/t (soybean) |
Power consumption |
installed capacity 320KW |
Solvent consumption |
4kg/t (No.6 solvent) |
Residual oil in meal |
1.0% |
Moisture in meal |
12~13% (adjustable) |
Solvent in meal |
500ppm |
Urase activity |
0.05-0.25 (soybean meal) |
Total volatile matter |
0.3% |
Residual solvent |
300ppm |
Mechanical impurities |
0.2% |
Wet Meal Desolventizing Process for soybean oil extraction plant
Desolventizer toaster advantages:
a) Passivate and damage the anti-nutritional components such as the urea enzyme and trypsin in the meal, and improve meal value in use.
b) Control the protein denaturation degree in the meal , and improve the NSI inde effectively.
c) It can better regulate the color, flavor and taste of the meal.
d) It can better reduce residual solvent in the meal and regulate the meal moisture, so as to guarantee the minimum solvent consumption and safe use of the meal.
Negative pressure evaporation process for soybean oil extraction plant
The liquid from the extractor is the miscella containing grease and oil, which can be separated out according their different vaporization temperatures. Our company mainly uses vacuum evaporation technology, and it can reduce solvent leakage and consumption. The separated solvent vapour is cooled and recycled back to the extractor for reuse, which can improve the solvent efficiency.
Vacuum Evaporation Advantages for soybean oil extraction plant
a) Vacuum evaporation features high efficiency, thorough desolvation and low solvent consumption in crude oil.
b) Use the second steam of desolventizer toaster and remaining steam from steam jet pump as the heat source of the first steam, which can save energy, reduce the condenser configuration area and save investment.
c) Due to the low temperature of the steam, the crude oil features light color, good quality and low residual solvent.
Solvent condensation & recovery process for soybean oil extraction plant
Solvent condensation system combines with evaporation system closely, and evaporative condenser and steam stripping condenser all work under negative pressure. Non-condensable gas enters the energy saver from the shell of the first evaporator. In energy saver, noncondensable gas echanges heat with condensate from the evaporative condenser. Finally, the condensate temperature discharged from energy saver is increased, and the solvent separated from water goes to solvent holdin
g tank. The high temperature makes it unnecessary to be reheated for the recycling, so as to save energy. Noncondensable gas from energy saver enters desolventizing condenser, in which a great deal of gas is condensed, and the tail gas is discharged into the final condenser. The solvent gas from the extractor enters extraction condenser, and the noncondensable tail gas enters the final condenser. For the free gas in final condenser, diversion bo, holding tank, underground solvent library and miscella tank, cool them with low temperatured cold water to recycle most of solvent gas. The tail gas with little solvent goes to paraffin recovery process.
Certifications Contact us
The purpose of Neutralizing Vegetable Oils Small Coconut Oil Mill Machinery is to remove Free-Fatty Acids (FFAs). Traditionally, FFAs are treated with caustic soda (NaOH). The reaction produces Soaps which are separated from the oil. Because New design oil extraction equipment for soybean oil extraction plant trace amounts of soaps remain in the oil, the oil is either washed with water or treated with Silica.Shandong Leader Machinery Co.,ltd. Some processors prefer not to perform caustic neutralizing. Instead, they prefer Physical Refining in which the FFAs are evaporated from the oil under high temperature and vacuum. This New design oil extraction equipment for soybean oil extraction plant process can be combined with deodorization step described under FFA stripping.Physical Refining process New design oil extraction equipment for soybean oil extraction plant is preferred because (a) it does not produce soaps; (b) it recovers fatty acids that provide better cost recovery; (c) there is smaller yield loss compared to caustic refining—especially for oils with higher FFAs; and (d) it is a chemical-free process.
If you have any demand about microwave drying equipment and edible oil refining equipment, pls feel free contact us any time.
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Contact:Mandy
NOTE:We can specially design the machine according to your production's features.