Oil pretreatment, crushing, leaching of complete sets of equipment
1. The pretreatment improved the shape of the oil, in order to quickly and efficiently pressing or leaching oil.
Usually includes the following a series of processes:
Oilseed shell: increase the protein content of cake.
Broken: reduce the grain size.
Steaming Fried/conditioning: reduce the viscosity of product oil, oil water content adjustment.
Flaking: structure of fuel cells are destroyed.
Puffing: optimization of oil leaching characteristics.
Good pretreatment is starts from the clean, clean is very important, it can not only ensure the quality of the final product (oil and meal), and can also avoid the early wear of pretreatment equipment.As reduce maintenance fee and wearing parts, the production cost is reduced, so the cleaning equipment investment will soon be able to get in return.
Broken: objective is to reduce the grain size, to ensure the uniformity of the steaming and frying.
Steaming and frying, tempering process, the oil is heated, adjust the water to the ideal state.
Mainly has the following purposes:
1, assign oilseed or certain plastic nuts.
2, reduce oil viscosity.
3, coagulation of protein.
4, to get rid of the bioactive oilseeds.
Being commonly used steam vertical and horizontal steam frying pan fry pan.
Squeezed oil oil mill has two methods: completely mechanical press (press cake residual oil in the 7-8%) and low pressure to squeeze (press cake residual oil 12-20%), to squeeze the cake after subsequent solvent leaching.
Separation of oilseeds oil as much as possible, can direct leaching pretreatment good oil, for high oil fuel, leaching to squeeze the cake.
Leaching process consists of the four steps in the following order:
1, leaching, the leaching apparatus.
2, steaming to oil material, such as meal, often with pulp drying and cooling combined treatment.
3, desolventizing: remove the mixed solvent in oil.