Oil extraction methods

Oil extraction methods mainly melting, melting fat extraction, oil equipment manufacturers that the smelting process is based on water, dry frying melting points and boiling method . 

           

Oil extraction method, direct heating method is to use a special or ordinary boiler heated directly on the fire. No steam equipment suitable for small-scale production, the disadvantage of this method is to heat unevenly, easy-to-zoom and reduce product quality diesel, so the temperature generally does not exceed 120 ℃, melting time depending on the raw material availability. In order to avoid high oil temperature caused by burning diesel and other shortcomings, put a stainless steel spacer plate in the pot, the board has a hole diameter of less than 2cm, kept in isolation plate above the water level, high 10 ~ 15cm. After the addition the temperature rises so that the first 60 ℃, maintained 30min, the precipitated fat and then heated to 85 ℃, and maintained 1h, melted collagen, followed by a press machine so that the soapstock separation.