News summary: The oil extraction process is basically divided into five steps, namely, oil pretreatment, oil extraction to obtain mixed oil, mixed oil stripping, evaporation to obtain crude oil, cake and meal separation of solvent by steaming, and solvent recycling.

News details: Edible oil extraction is a widely used oil production process. Here, taking soybean oil as an example, I will briefly tell you what equipment is needed for complete oil extraction production?

The oil extraction process is basically divided into five steps, namely, oil pretreatment, oil extraction to obtain mixed oil, mixed oil stripping, evaporation to obtain crude oil, cake and meal separation of solvent by steaming, and solvent recycling. According to the above process introduction, it is known that soybean extraction equipment not only refers to the extractor system, but also includes many other equipment.

The pretreatment of soybean oil is to separate the solid impurities contained therein, and at the same time, the oil is processed into a state that is easy to extract, which is helpful for production. In this process, the oil mill needs to be equipped with multiple equipment such as fans, magnetic separators, crushers, and embryo rolling equipment. If the soybean cake obtained by the oil mill is intended to extract soybean protein powder, it is also necessary to equip a dehulling machine.

Oil extraction is an important step in production, which will affect the cost and production efficiency of the oil plant. The oil plant should purchase extraction equipment according to its actual situation. Good extraction equipment can control the residual oil rate in the cake to less than 1%. There are many types of extraction equipment. According to the different processing volumes, the extraction process can be divided into intermittent extraction and continuous extraction.

Intermittent extraction usually uses an extraction tank, while continuous extraction requires an extractor. There are also many types of extractors, which can be divided into horizontal extraction, annular extraction and drag chain extraction. The oil plant should consider the state of the external oil and the actual situation when choosing which extractor to use.

Evaporators, stripping towers and other equipment are used for the evaporation and stripping of solvents. These are used to treat mixed oils, and degassing machines and other equipment are needed for the treatment of cakes. The evaporated solvent can be recycled and reused. The recovery of solvent vapor requires the use of a condenser. Some solvent vapors contain little water and can be transported to the condenser for cooling before being recovered into the solvent tank for reuse. If the solvent contains water, it needs to undergo water separation treatment in order to improve the quality of the solvent.