The sections of soybean pretreatments mainly include cleaning, conditioning, crushing and flaking. In some oil production line, extrusion is needed. There are many benefits of soybean pretreatments such as improving rate of oil yield, prolonging the life of equipment, enhancing the value of soybean meal. The soybean pretreatments play crucial role in soybean oil production line. We will introduce each of these sections to you one by one.
Cleaning:
During the harvesting, transportation and storage, impurities may mix in to soybean. The impurities can be divided into organic, inorganic and oil containing impurities. The last mentioned one mainly include moldy, damaged oilseed. To ensure the quality of soybean oil, cleaning is needed. Therefore, the basic requirements of cleaning are removing impurities as much as possible, using simple process and energy saving equipments.
Cooking:
cooking is a critical section of soybean pretreatment. It regulates the moisture to 9% to 10%, and adjust the temperatures of soybean. Moisture regulation can make soybean easier to crush and improve the peel rate of crushing. Larger output of soybean oil extraction plant, the cooker is very important, it can improve the quality of the oil and the efficiency of the subsequent oil extraction, our company's newly developed horizontal dryer can process 3000 tons of soybeans a day.
Crushing:
In this section, soybean seed will be crushed into 6 to 8 fragments. Crushing improving the surface area of raw material and broken the cell wall of soybean, thus leading to higher oil yield. In addition, the methods of crushing are sheering, extrusion, grinding and collision. All above mentioned methods must make sure the fragments well-distributed and suitable size.
Flaking:
Flaking is a process that make soybean fragments become flake using mechanical effect. The mechanical stress is carried out to broken the soybean cell wall well and decrease the flow distance of oil. In addition, the thickness of flake is important in oil yield, so we must adopt suitable flaker.
Extrusion:
In some soybean pretreatment line, extrusion is needed. In this section, flake will be extruded to porous materials and the cell wall will be destroyed completely. The advantages of extruded materials is polishing up the permeation of solvent that can effectively boost oil yield. In addition, as a manager we must control the process and choose good extrauder equipments.
In a word, soybean pretreatments is important in soybean oil production line, manager should choose suitable process line and adopt high quality equipments. All above these, SiWei can provide excellent solution methods and good service.
