Rapeseed is one of the main oil crops, and the oil content is 37.5%-46.3%. Depending on the type of rapeseed, the oil content is slightly different. The rapeseed oil extraction process includes the cleaning and drying of rapeseed, heat treatment (steaming and frying), pressing and other processes. Next,
The rapeseed used for rapeseed oil pressing will contain some impurities, such as dust, sand, pebbles, metal impurities, husks, bad grains, etc. These impurities will not only affect the rapeseed oil squeezing process, but also wear the rapeseed oil squeezing equipment and reduce its service life. So it is necessary to use cleaning equipment to remove these impurities.
Steaming and frying is an important process in rapeseed oil squeezing and processing. It mainly changes the internal structure and state of rapeseed through the effects of temperature and moisture, so as to accumulate oil and increase the rate of squeezed oil. The temperature of the oil during steaming and frying is 110-120°C, and its moisture content is about l-1.5%. It is recommended to use a drum wok for good results.
Squeezing is the process of extracting oil from rapeseed through the mechanical extrusion of the oil press. Because of the previous series of pretreatment processes, the temperature, moisture and structure of the rapeseed have reached a good condition suitable for pressing, so the pressing process is smoother and the pressing efficiency is also improved. The equipment used for pressing is an oil press, and benteng machinery can be equipped with one or several oil presses according to customer needs and rapeseed processing capacity.
Commonly used machines for filtering are plate and frame oil filter, vacuum oil filter and air pressure oil filter. The plate and frame oil filter is often recommended, which is cheap, easy to use, and clean.
Simple process: drum roaster-oil press-plate and frame oil filter
Complex complete process: vibrating screen-conveyor-drum roaster-conveyor-oil press-plate and frame oil filter
The above is the detailed process of rapeseed oil pressing. The engineers of Benteng Machinery will customize the rapeseed oil pressing production plan according to the specific situation of each customer, and equip the corresponding rapeseed oil processing equipment, so that the customer’s investment budget can be reasonably used. If you are preparing a rapeseed oil pressing production project and are looking for a rapeseed oil processing equipment manufacturer, then you can contact us, and the Benteng Machinery team will be happy to serve you.
