Sunflower oil processing line
Process brief of sunflower oil processing production line:
After the sunflower seeds are cleaned, shelled, separated from shells and kernels, steamed and fried, and oil-pressed in the pretreatment workshop, the pre-pressed sunflower seed cakes are sent to the leaching workshop for leaching, and then sprayed and soaked in solvents, so that the solvents can fully contact the materials and dissolve them. grease. There are two sections of pre-pressing and leaching, and the extracted crude oil undergoes degumming, deacidification, decolorization, deodorization, dewaxing and other processes to obtain refined sunflower oil.
Equipment components of sunflower oil processing production line:
1 Complete set of sunflower seed pre-pressing equipment:
Process Description: The sunflower seeds adopt the dehulling and pre-pressing process. When they enter the market, they are first cleared and crushed. After being steamed and fried in a steamer, they are pre-pressed with a screw pre-pressing machine. to refine. The pressed cake is sent to the leaching plant for leaching.
This section requires hoists, conveying equipment, vibrating screens, crushers, shell and kernel separating screens, steaming pans, presses, vibrating filters and other machine components.
Sunflower seeds→cleaning→crushing→separation of shell and kernel→steaming→pressing→crude oil
2 Sunflower seed cake leaching complete set of equipment:
Process flow: pre-pressed sunflower cake → conveying → leaching → evaporation → stripping → leaching of crude oil. The wet meal is evaporated and dried.
Process description: The sunflower press cake from the pre-pressing workshop is transported to the leaching workshop, and enters the extractor through the 1# buried scraper conveyor and sealing auger. fresh solvent to reduce the oil content in the material to less than 1%. The wet meal is sent to the steam off-line by 2# buried scraper conveyor and sealing auger for steam drying, and sprayed into direct steam to remove the solvent. After drying, the meal is transported to Meal depot packaging. The mixed oil obtained by leaching grease with solvent is evaporated and separated by multi-effect evaporator, and the crude sunflower oil is separated by steam stripping, and then the solvent is removed through filtration, precipitation of mechanical impurities and other processes to obtain leached crude oil, and the crude oil is sent to the refining workshop for further processing. reuse.
The mixed oil adopts the negative pressure evaporation technology, and uses the secondary steam of the evaporation and off-line as the heat source. The first steaming, the second steaming, and the stripping all work under negative pressure, which reduces the evaporation temperature, improves the quality of crude oil, and saves steam consume.
The solvent vapors of primary steaming, secondary steaming, stripping, and leaching are respectively recovered through corresponding condensers, and the condensate is collected in the liquid collection tank, and after entering the comprehensive container for water separation, the solvent is then pumped into the leaching device to enter the next cycle and separated out. After the water is cooked in the cooking tank, the waste water is discharged. The free gas of each condenser enters the balance tank, and then enters the final condenser, and the tail gas is discharged after recovering the solvent.
Main equipment: extractor, off-line steamer, meal collector, long tube evaporator, disc stripper, condenser, comprehensive container, cooking tank, tail gas absorption tower, etc.
Main features: The equipment adopts negative pressure evaporation process, which has low residual oil, less solvent consumption, good quality and light color of crude oil leached.
In the sunflower oil processing production line section, the extracted sunflower oil contains a certain amount of impurities and needs to be reprocessed before it can be eaten. Therefore, the products in this section will enter the sunflower oil refining production line in the next section.
Sunflower oil refining machine production line
Sunflower seed crude oil has a lighter color, and the degumming, deacidification, decolorization, and deodorization processes are basically similar to soybean oil. Sunflower oil needs to be dewaxed again, and after dewaxing, it can reach the national first-class oil standard.
Process flow: Crude oil → degumming → decolorization → filtration → oxygen removal → heat exchange → heating → deacidification and deodorization → heat exchange → cooling → crystallization → crystal growth → filtration → refined oil
Process description: After the crude oil is preheated, light alkali is added to make the gum in the oil and some free fatty acids form soapstock, and then the soapstock is separated, and then hot salt water is added to the oil for washing, and the soapy water is separated, and after One or two times of the same washing will complete the degumming. The degummed oil enters the decolorization process, adds activated clay to decolorize in the decolorization tower, and then pumps it into the leaf filter for filtration. The filtrate is polished and then enters the next process. After the leaf filter is blown dry, the waste clay is discharged through vibration. The decolorized oil is pumped into the degasser for vacuum deoxygenation, then pumped into the oil-oil heat exchanger and deodorized oil for heat exchange and preheating, and then enters the heater to heat up to about 230-250°C and enters the combined deacidification and deodorization tower in high vacuum Deacidification and deodorization are carried out in the state, and the volatile substances such as fatty acid and odor in the oil are removed to a large extent. The mixed steam of fatty acid is discharged from the top of the tower and enters the fatty acid capture system to be captured and sold. The oil is drawn from the bottom and pumped into the heat exchanger to exchange heat with the oil to be deodorized, and then deodorized oil is obtained after cooling. The deodorized oil is cooled and crystallized in the crystallization tank, and then transferred to the crystal growth stage. The crystallized and crystal-raised oil is pumped into the filter to separate wax and fat to obtain finished oil.
Main equipment: centrifuge (or refining pot), decolorization tower, leaf filter, bag filter, combined deacidification and deodorization tower, spiral plate heat exchanger, crystallization tank, dewaxing filter, etc.
Process features: Adopting physical refining technology, equipped with a combined deacidification and deodorization tower, with high degree of automation, low production cost, and small loss. The dewaxing and degreasing process is designed, and the quality of the refined oil can reach the national standard.
Equipped with a combined vacuum system, the degree of vacuum is lower, making it easier to volatilize odorous or acidic substances, and coupled with a double-tower deacidification and deodorization system, which reduces the formation of trans fatty acids and greatly improves the quality of sunflower oil.
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