When we processing the oil, the Oil Mill Machinery will produce the heat on oil. During the process of steam heating, The changes occurring in the interior of the material are mainly caused by heating, and the degree of these changes, also depends on the heating method, time, uniformity, and other factors.
If the oil processing machinery have heat on oil, then the change of oil viscosity and oil binding. Steam heating effect of the process of speculation, make the billet in high temperature, and weaken the enhanced oil thermal motion of molecules and molecular cohesion, resulting in green oil viscosity and surface tension reduction, weakening the binding of grease and part of the green gel and enhance the mobility of the oil, oil get rid of protein hydrophobic adsorption force and to create the conditions to overcome the flow friction resistance. This change makes the oil mill machinery easier to separate the oil from the oil when the oil is pressed. Chemical changes of oil when oil mill machinery processes oil. In the temperature range used in the process of steaming and frying, it is impossible to make the oil produce profound chemical changes. But because oil is film shaped in the blank surface broad, steaming wok especially when heated contact with oxygen in the air will make the oil oxidation, resulting in oil peroxide value increased. In the oil mill machinery’s cooking process may also produce oxygen acid, make oil acid value increase, also may be due to the binding reaction or some low molecular weight fatty acid is distilled, the oil acid value decreased production of fatty acids and other substances.
Oil mill machinery also combination of oil and other substances through heating. Heating effect in the process of steaming and frying, the fat and lipid and protein substances combined generating an insoluble in ether conjugates. With the increase of heating temperature, the combination of these products