The main purpose of the peony seed oil refining equipment is to refine crude oil, so that the refined oil can reach a certain quality standard. Crude oil contains a lot of impurities, will seriously affect the use value of the oil and the safe storage, but also make it more difficult to deep processing. But this is not the ultimate goal of physical refining equipment, it is intended to be all of the edible oil inside, storage, industrial production of all impurities in the removal of all impurities. Such as gossypol, protein, phospholipids, mucus, water can not keep those tocopherol such favorable impurities is to be retained. So the final purpose of physical refining equipment is to be in different requirements and use of the case, the situation is not needed and there is also the material removed from the oil, so that the finished product oil to achieve a certain quality standards.

牡丹籽油精炼设备的精炼方法可以根据操作特点的不同还有使用原料的不同来区分，主要可以分成三种，机械法、化学法和物理化学法。

The refining process of peony seed oil refining equipment can be distinguished according to the different operating characteristics and the use of raw materials, mainly divided into three types, mechanical method, chemical method and physical chemical method.