Sunflower seeds from the oil-type contain about 20%-30% hulls that are sometimes removed before oil extraction to ensure the quality of both oil and sunflower meal. De-hulling is done when the seed has a moisture content of 5% after cleaning.
The usual process consists of cracking the seeds by the mechanical action of centrifugal or pneumatic sheller, which can also be completed by abrasion. Then the resulting mixture is winnowed to separate the hulls from the kernels. Some oil sunflower seeds have thin hulls that are difficult to remove, so they can be free from dehulling to avoid oil loss.
The purpose of Sunflower seeds shelling:
1.improving the quality of oil and meal;
2.improving the oil yield and reduce oil loss;
3.increasing production capacity, reduce equipment wear and tear;
Sunflower seeds shelling equipment mainly includes:disc huller,centrifugal sheller,teeth roller husking machine,etc
Shelling machine is composed of feeder device, magnetic device, crushing roller, distance adjusting device between rollers, transmission gear and basement.
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