The oil in rice is mainly concentrated in rice bran. The oil content of rice bran is between 15% and 25%, which is close to the level of soybeans. If it is used only as feed, its value is relatively low, but if it is used as an oil, its value can be multiplied several times.
The expansion and extraction process is one of the processing technologies for producing rice bran oil. Rice bran has a high starch content, many types of enzymes, and is easy to go rancid. Rice bran has the characteristics of low density, fine particles, and large powderiness. The expansion process can puff the powdered rice bran into a porous, permeable columnar structure, which increases the density of the rice bran and accelerates the penetration of the solvent. It is beneficial to the penetration of the solvent during the rice bran oil extraction process and reduces the residual oil in the bran. On the other hand, the expansion process can also make the lipase in the rice bran fully passivated and lose its activity, making the rice bran less likely to go rancid during storage, extending the shelf life of the rice bran, greatly reducing the acid value of the extracted crude oil, and improving the quality of the extracted crude oil.
The equipment used for extracting rice bran oil consists of common equipment such as extractors, degassing machines, stripping towers, evaporators, and condensers. The extractor is the main equipment for extracting oils and fats. Commonly used extractors include horizontal rotary extractors, ring extractors, and drag chain extractors. For extracting rice bran oil, horizontal rotary extractors and ring drag chain extractors can be selected. Both rice bran oil extractors have the characteristics of few extraction stages, distinct stages, no mixed flow, and high extraction efficiency.
According to online data, the ability of extracting puffed rice bran is 25%~35% higher than that of direct extraction of rice bran. In addition, it can change the extraction characteristics of materials, increase the penetration rate of solvents in materials, save energy in the honest processing process, reduce the solubility of wet meal, increase the concentration of mixed oil, enhance the desolventizing ability of degassing machines and evaporators, reduce various consumption, and increase the oil yield of rice bran.
The rice bran oil extraction method can form large-scale production, quickly process a large amount of rice bran raw materials, and has a series of advantages such as high efficiency, large output, low labor intensity, and high degree of automation. It can improve the oil yield, reduce the residual oil in the cake, improve the quality of the bran, and reduce production costs. The quality and oil yield of the extracted oil are closely related to the quality and process of the extraction equipment. Investing in an extraction oil production line generally requires a large amount of capital investment. In terms of equipment selection, it is necessary to find a strong and experienced extraction equipment manufacturer to cooperate. The quality of the equipment and after-sales service are guaranteed, so that users can rest assured to produce. Extraction equipment manufacturers can visit Huatai Group.
To get an accurate and reliable estimate of the cost of a rice bran oil machine, it is advisable to contact different manufacturers and suppliers and compare their offers based on your specific requirements and budget. You can also check online reviews and ratings of different oil machines to get an idea of their performance and customer satisfaction.
