Oil expression section
The cleaned sunflower seed is sent to the steaming and frying section by conveying device. Steaming and frying section makes the albuminous degenerated, grease condensed, viscosity and the surface tension low. Adjust the oil plants temperature and moisture by heat treating to make expression more convenient. And the pressed crude oil is sent to the refining workshop after vacuum drying.
Refining section
After preheating, the filtered crude oil is added some phosphoric acid (with concentration 85%) for hydration debonding. Add some lye to the debonding crude oil for hybrid reaction. Then it enters into the soap separation centrifugal machine to separate niger and neutral oil. The neutral oil after soap separation is added soft water for washing centrifugation; after the vacuum drying of the lye oil refining, through heating to the suitable temperature by the heat exchanger, it enters into the premixing pot for intensive mixing with carclazyte and then enters into the bleaching tower for decoloration. Then the mixture of the oil and carclazyte from the bleaching tower is filtered into bleached oil; the bleached oil enters into the deaerator to remove the trace amounts of oxygen soluble in the grease. The bleached oil from the deaerator enters into the deodorizing tower after heat exchange. Add some citric acid (with concentration of 5%) and after deodorization, we can get refined first class oil by filtration and cooling.
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