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O proceso de separación electrostática STET é completamente seco, sen necesidade de auga ou produtos químicos. métodos de separación Electrostática seca ofrecen unha oportunidade para xerar produtos novos e máis funcionais de proteína vexetal, 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 (seca) en dous tamaños de partículas, a coarser feed with a d50 = 70 mícron, prepared with a hammer mill and a finer feed with a d50 = 25 mícron, preparado cun molino de aire clasificado. 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. Para os máis groseiros (d50 = 70 mícron) mostra, the feed sample containing approximately 39% proteína (base seca) was separated into a product containing 52% proteína e un subproduto con a 29% proteína, nun só paso polo separador. Para os máis finos (d50 = 25 mícron) mostra, un produto con a 54% protein content was generated, with a by-product with 25% proteína, nun só paso polo separador.
The tribo-electrostatic belt separator demonstrated the capability to process finely ground sunflower seed meal to significantly upgrade the protein content, converténdose o máis valioso como unha alimentación animal. The STET tribo-electric belt separator offers many benefits for processing sunflower meal including continuous operation, unha elevada taxa de alimentación de ata 15 toneladas por hora de alimentación, baixo consumo de enerxía, facilidade de operación e elevada fiabilidade mecánica.
