How does oil extraction equipment achieve efficient extraction?

1. Technical Principle: Four Collaborative Systems of Leaching Equipment

1. Embryo leaching system

   • Use food grade solvents such as n-hexane to contact the pretreated material in countercurrent

   • Oil dissolves to form mixed oil (oil content 15-30%)

   • Key parameters: temperature 50-60°C, time 60-90 minutes

2. Wet meal degassing system

   • Remove the residual solvent in the meal (≤0.05%) through DTDC desolventizer

   • High temperature steam (110-120°C) recovers solvent and retains protein activity

3. Mixed oil evaporation system

   • The triple-effect evaporator utilizes the difference in boiling points (solvent 36.1°C vs oil 300°C+)

   • Concentrate in stages until the solvent residue is ≤500ppm

4. Solvent recovery system

   • Condensation + mineral oil absorption achieves 99.8% solvent recovery rate

   • Exhaust gas treatment ensures that emissions comply with GB16297 standards

2. Industry Value: Dual Breakthroughs in Efficiency and Environmental Protection

• Improved oil yield : 3-5 percentage points higher than the pressing method (soybean extraction rate reaches 18-22%)

• Energy saving and environmental protection : closed-circuit design reduces solvent consumption by 40%

• Quality control : Crude oil acid value ≤5mg/g, after degumming/deacidification/decolorization, it reaches the national standard level 1

3. Equipment selection recommendations

QIE GROUP provides modular leaching production lines to support:

• Customized solvent ratio

• Automation control system

• Turnkey project

QIE GROUP is a professional edible oil refining production line machine manufacturer, providing turnkey refining line projects. If you want to build your own edible oil refining line, please contact us!