Oilseeds pretreatment and pre-pressing machine process generally refers to the process of extracting oil from oil seeds. The whole processing begins with oilseed harvesting, and ends with oil extraction. The oilseeds pretreatment and pre-pressing machine include cleaning section, crushing section, flaking section, softening section, cooking section and oil pressing section.

Oilseeds pretreatment and pre-pressing machine Before Peanut Oil Extraction:

Different kinds of oilseeds have different oil content and physical properties. So the pre-treatment process varies slightly from one kind of seed to another. But most seed pre-processing includes cleaning, drying, dehulling, crushing, flaking, cooking and tempering. Below are typical  oilseeds pretreatment process of soybeans, canola seeds and sunflower seeds.

Cleaning: Remove impurities such as leaves, sticks, stones, sand, dirt, spoiled seeds and metal contaminants. This process is commonly referred to cleaning and scalping equipment including sieve, destoner, peeling machine, magnetic devices, and belt conveyor etc.

Dehulling: Most oilseeds need to remove the abrasive shells before oil extracting, since the oil content of shells and hulls is less than 1%. Besides, shelling can not only improve the capacity of oil extraction equipment, increase the efficiency of oil production, but also can reduce wear of oil expeller. Dehuller is commonly used in this process.

Crushing & Flaking: Most oilseeds require size reduction prior to oil extraction. Crusher and flaker are used in this process. Some small seeds such as corn germ, rapeseed and canola don’t need to be cracked.

Cooking: Heating the seed is an option, but not necessary. It can increases efficiency of extraction and protein availability.

Extruding/Puffing (optional):Through extrusion (puffing) by means of expander (extruder), the oilseeds materials will be expanded because of sudden pressure-relief, Meanwhile steam in the material is evaporated all of a sudden, so the material become microporous structure and expanded to irregular particles.

Pressing : oilseeds pressing machine is designed to use physical mechanical pressing way to expelling oil out from the oil seeds.

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Customized each project according to customer's market, so that to build the most appropriate plan for oil processing production;

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Henan Doing Mechanical Equipment Co.,Ltd  is experience in building turn-key oilseed pressing plant. Don’t hesitate to contact us is you are interested in our peanut oil processing machine.

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