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The STET electrostatic karohano thulaganyou e ke e omeletseng ho feletseng, hlokang metsi kapa lik'hemik'hale. Dry electrostatic mekhoa karohano fana ka le monyetla oa ho hlahisa lihlahisoa tse ncha 'me ho feta tshebetso semela protheine, including sunflower seed meal with increased protein content for use as a high value animal feed. This protein enriched sunflower seed meal can be used as a non-GMO replacement for soy meal, and add value to sunflower oil crushing operators and feed producers.
A sample of solvent extracted sunflower seed meal was purchased by STET for pilot testing. The sunflower meal was finely milled (ommeng) ka boholo ba likaroloana tse peli, a coarser feed with a d50 = 70 micron, prepared with a hammer mill and a finer feed with a d50 = 25 micron, e lokisitsoeng ka leloala la moea. The dry sunflower seed meal samples were then separated using the STET tribo-electrostatic belt separator. Subsamples of the negatively charged and positively charged products were measured for protein using the DUMAS method.
Finely milled dry sunflower seed meal samples demonstrated excellent sunflower protein separation. Bakeng sa mahoashe (d50 = 70 micron) mohlala, the feed sample containing approximately 39% protheine (motheong oa omileng) was separated into a product containing 52% protheine le sehlahisoa se nang le a 29% protheine, ka tsela e le 'ngoe ho pholletsa le moarohano. Bakeng sa e ntle (d50 = 25 micron) mohlala, sehlahisoa se nang le 54% protein content was generated, with a by-product with 25% protheine, ka tsela e le 'ngoe ho pholletsa le moarohano.
The tribo-electrostatic belt separator demonstrated the capability to process finely ground sunflower seed meal to significantly upgrade the protein content, etsa hore e be tsa bohlokoa ho feta e le fepa ka phoofolo. The STET tribo-electric belt separator offers many benefits for processing sunflower meal including continuous operation, phahameng sekhahla fepa ka tsa ho fihlela ho 15 boima ba lithane tse ka fepa ka hora, tshebediso ya eneji, tlaase, khatholoha, ho sebetsa le phahameng phetha molao tšepahala.
