Methods of sunflower oil extraction from seeds
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ssing » Sunflower Seed Pressing Line
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Process Description:
The purpose of preparation is to extract a portion of oil by mechanical pressing while providing pressing cakes for extraction plant. It is a succession of several of the following processes: seed Cleaning & Weighing, Cracking & Dehulling, Flaking, Cooking, Pressing, Oil Residue Separation.
 
Process Flow Diagram:

Description of Process:
1. Cleaning & Weighing Section
Sunflower seeds from daily bin or warehouse is treated by magnetic separator, weighing scale and screener to remove impurities.
2. Cracking & Dehulling Section
The purpose of softening is to adjust moisture, temperature and tenacity of sunflower seeds previous to flaking.
3. Flaking Section
The purpose of flaking is to turn the broken flower seeds into thin flakes (from 0.3 to 0.35mm) for the subsequent oil extraction through mechanical pressing. In addition, flakes thickness can be adjusted through roll pressure adjustment device.
4. Cooking Section
Horizontal drum softener is designed to adjust temperature and moisture of sunflower seeds flakes previous to mechanical pressing, improving oil yield greatly.
   
5. Pressing Section
Sunflower seeds is a kind of high oil-containing oilseed. Generally it is necessary to extract a portion of oil by mechanical pressing previous to subsequent process. Pressing cakes containing residual oil from 14% to 18% is then treated by solvent extraction while crude oil is to be filtered.
6. Oil Residue Separation Section
Due to high content of residue in crude oil, it is necessary to separate oil residue by oil drag conveyor firstly, crude oil then enters to settling tank for further separation. Collected residue is returned to pressing section while crude oil from settling tank is pumped to horizontal screw centrifuge or leaf filter for further removing impurities.
7. Cooling Section
Hydraulic turning cooler with complete set of wind network system is designed to cool down pre-pressing cakes to 55~60℃, then cakes is conveyed to extraction plant.
  
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Details
Process Description:
The purpose of preparation is to extract a portion of oil by mechanical pressing while providing pressing cakes for extraction plant. It is a succession of several of the following processes: seed Cleaning & Weighing, Cracking & Dehulling, Flaking, Cooking, Pressing, Oil Residue Separation.
 
Process Flow Diagram:

Description of Process:
1. Cleaning & Weighing Section
Sunflower seeds from daily bin or warehouse is treated by magnetic separator, weighing scale and screener to remove impurities.
2. Cracking & Dehulling Section
The purpose of softening is to adjust moisture, temperature and tenacity of sunflower seeds previous to flaking.
3. Flaking Section
The purpose of flaking is to turn the broken flower seeds into thin flakes (from 0.3 to 0.35mm) for the subsequent oil extraction through mechanical pressing. In addition, flakes thickness can be adjusted through roll pressure adjustment device.
4. Cooking Section
Horizontal drum softener is designed to adjust temperature and moisture of sunflower seeds flakes previous to mechanical pressing, improving oil yield greatly.
   
5. Pressing Section
Sunflower seeds is a kind of high oil-containing oilseed. Generally it is necessary to extract a portion of oil by mechanical pressing previous to subsequent process. Pressing cakes containing residual oil from 14% to 18% is then treated by solvent extraction while crude oil is to be filtered.
6. Oil Residue Separation Section
Due to high content of residue in crude oil, it is necessary to separate oil residue by oil drag conveyor firstly, crude oil then enters to settling tank for further separation. Collected residue is returned to pressing section while crude oil from settling tank is pumped to horizontal screw centrifuge or leaf filter for further removing impurities.
7. Cooling Section
Hydraulic turning cooler with complete set of wind network system is designed to cool down pre-pressing cakes to 55~60℃, then cakes is conveyed to extraction plant.
  
If the answer is helpful to you mark it as a brainliest answer please!
Thank you
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