A soybean oil extraction plant can use different equipment depending on the processing capacity and selected extraction method. Small and medium-scale projects may use mechanical pressing, while larger plants often use solvent extraction to achieve higher oil recovery.
Therefore, the equipment configuration should be designed according to the complete soybean oil extraction process and the customer’s production requirements.
Soybean Cleaning Equipment
Cleaning is the first step in soybean processing. Cleaning machines remove stones, dust, plant residues, metal particles, and other impurities from the raw soybeans.
Common equipment includes vibrating screens, magnetic separators, and other cleaning machines. Proper cleaning protects downstream equipment and improves the stability of the production line.
Crushing and Other Pretreatment Equipment
After cleaning, soybeans are crushed to break the beans and prepare them for further processing.
For a pressing process, the material may then enter a cooker for heating and conditioning before screw pressing.
For oil solvent extraction plant, the pretreatment section normally includes equipment for conditioning and flaking. Flaking produces thin soybean flakes, which provide better contact between the solvent and the oil-bearing material.
Soybean Oil Pressing Equipment
When mechanical extraction is selected, a soybean oil extraction machine, such as a screw oil press, separates crude soybean oil from soybean cake.
A typical oil pressing line can include:
Cleaning → Crushing → Cooking & Conditioning → Screw Pressing → Crude Oil Filtration
This configuration can be suitable for projects with smaller processing capacities or customers who specifically require mechanical pressing.
Soybean Solvent Extraction Equipment
For larger-scale production, a solvent extraction section can be added after soybean pretreatment.
Typical soybean oil solvent extraction equipment includes an extractor, meal desolventizer-toaster-dryer-cooler (DTDC), evaporators, and solvent recovery systems.
Oil Solvent Extraction Equipment
The extractor uses solvent to remove oil from prepared soybean flakes. The miscella then enters the evaporation and solvent recovery section, while the extracted soybean meal passes through the DTDC system.
Crude Oil Process and Refining Equipment
After extraction, crude soybean oil normally requires further process before it becomes edible oil.
Depending on the crude oil quality and final product requirements, a soybean oil refining process plant may include degumming, neutralization or physical deacidification, bleaching, filtration, and deodorization equipment.
These sections remove phospholipids, free fatty acids, pigments, moisture, and unwanted odors.
Complete Soybean Oil Extraction Machinery
A complete soybean oil extraction machinery configuration may therefore include:
Cleaning → Crushing → Pretreatment → Pressing or Solvent Extraction → Crude Oil → Refining → Edible Soybean Oil
At Guance Machinery, we provide customized equipment and complete solutions for soybean oil processing plants. The final equipment configuration is selected according to raw material conditions, capacity, extraction method, and final oil requirements.
The equipment used in a soybean oil extraction plant depends mainly on the selected process and production capacity. A pressing plant may require cleaning, crushing, conditioning, and screw pressing equipment, while a larger solvent extraction plant requires additional flaking, extraction, solvent recovery, and meal treatment systems.
A properly designed equipment configuration helps achieve stable operation, efficient oil recovery, and high-quality refined soybean oil.
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