Three Problems That Easily Occur in Rapeseed Oil Press

Rapeseed oil is an oil squeezed from rapeseed, known as "Oriental olive oil". It is a kind of edible oil that is widely used in our daily life. It is commonly used for frying and frying. According to the standard, we will Rapeseed oil is divided into four grades. The first and second grades of rapeseed oil (after decolorization) are lighter in color, and the third and fourth grades of rapeseed oil will be darker in color. The editor summarizes three problems that easily occur in the process of rapeseed pressing.

First of all, we need to heat up the machine to 110-140℃; then pour the rapeseed into the pot and bake it. When the rapeseed in the pot is green, stir-fry on low heat until the rapeseed is crushed and turned into a deep yellow. Press it at around 60°C. In addition, we can also make some changes according to the different tastes of the north and south. In the south, the rapeseed is relatively heavier, and the north is slightly lighter.

Three problems that easily occur in rapeseed oil press:

1. Too much slag and insufficient oil yield: Mainly because after the rapeseed is fried, the temperature is not enough.

2. The oil filtering speed is slow: the main reason is that the rapeseed is squeezed, the raw material has large impurities, the dust is too much, the temperature of each part of the machine is low, and the concentration of rapeseed oil is large. At this time, the oil pan should be heated and opened, and the other two filters should be used alternately. Clean up the residue on the filter cloth or replace the filter cloth in time.

3. The oil injection phenomenon of the vacuum pump: due to the long-term filtration, the vacuum expression reaches the limit (-0.1). You can see from the window that the oil foam continues to rise. If you continue to filter, the oil will be pumped into the air bag and then sucked in. The vacuum pump ejects from the exhaust hole of the vacuum pump, causing the oil output rate to decrease. When this phenomenon occurs, the vacuum pump should be stopped to make the vacuum meter value to -0.09, and then continue to work.

Rapeseed oil press is commonly known as screw oil press or fully automatic oil press. This type of oil press has multiple functions such as automatic control of heating, oil pressing, filtering, etc., and can heat the press chamber of the machine before pressing , Improve the oil yield, and at the same time can also filter the crude oil during the pressing process.