Before pressing, put the rapeseed into the pot and steam it. When the rapeseed in the pot smokes, stir it until the rapeseed is rolled out and turn it into a dark yellow pan. Then the temperature is lowered to about 60 °C. Before pressing into the press, first raise the oil press to 110-140 °C.
Traditional hot mustard seeds are prone to problems
1. The filtration speed is slow: the raw material is large, the dust is high, and the temperature of each part of the machine is low, and the concentration of rapeseed oil is large. Solution: Heat the oil pan open, use the other two filters alternately, and remove the residue from the filter cloth to clean or replace the filter cloth.
2, more oil and oil yield is not high: the main problem is that after the rapeseed is fried, the temperature is not enough.
3, the vacuum pump appears oil injection phenomenon: due to long-term filtration, causing the vacuum to express the limit value, you can see the oil foam rising continuously, if you continue to filter, the oil will be pumped into the air bag, and then the vacuum pump is sucked out from the vacuum pump. , resulting in lower oil yield. Solution: Listen to the vacuum pump to reduce the vacuum gauge to -0.09. Then continue working.