· Low oil yield : The residual oil rate of traditional equipment is >20%, which wastes raw materials.
· Unstable refined oil quality : acid value/color does not meet standards
Upgrade requirements
· Efficient leaching : solvent extraction technology with residual oil rate ≤ 1%
· Energy-saving refining : integrated equipment for degumming, deacidification, decolorization, deodorization and dewaxing
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equipment |
Function Description |
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Cleaning sieve |
Remove impurities in corn germ, such as dust, sand, pebbles, straw, etc., to protect subsequent equipment and ensure the purity of oil products. |
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By heating and humidifying, the germ tissue is softened and its plasticity is improved, which is beneficial for subsequent flaking or pressing, while reducing powder flying. |
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The softened corn germ is pressed into flakes to further destroy the cell tissue, improve oil extractability and reduce residual oil content. |
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The material after flaking is steam heated and fried to adjust the moisture and temperature, making it easier for oil to precipitate, while improving the pressing effect and oil quality. |
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screw oil press machine |
Oil is squeezed out of the oilseed by mechanical pressure to obtain crude oil and oil cake |
✅Selection suggestion : High oil content germ (30-40%) requires secondary pressing
· Extractor: Use organic solvents (such as n-hexane) to extract oil from oilseeds, greatly increasing the oil yield
· Desolventizer Toaster Dryer Cooler (DTDC): Separates solvent and meal from wet meal
· Evaporator: Evaporate the oil and fat in the recovered solvent to obtain mixed oil
· Stripping tower: Use steam stripping to remove the solvent from the mixed oil to obtain the extracted crude oil
· Degumming and deacidification : centrifuge + alkali refining tank
· Decolorization and deodorization : decolorization tower + deodorization tower
· The key to dewaxing : low temperature crystallization and filtration (to prevent grease turbidity)
⚠️Tips for avoiding pitfalls : Undewaxed corn oil is prone to crystallization and precipitation, affecting its appearance
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Investment scale |
Recommended configuration |
Average daily output |
|
Small-scale oil mill |
Steaming frying pan + oil press + batch refining |
1-20 tons |
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Medium-scale oil mill |
Pretreatment line + leaching + semi-continuous refining |
20-100 tons |
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Large-scale oil mill |
Fully automatic pretreatment-leaching-refining integration |
More than 100 tons |
. Technical support
· Refined oil reaches national first-class standard
. Delivery Cases
· Africa 200TPD corn oil project: residual oil rate 0.8%, refining yield 92%
. Service Support
· Free customized flow chart : design process according to the oil content of raw materials
· Lifelong equipment maintenance : 48-hour fault response
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