Solvent extraction method principle is one way of that, choose the organic solvent which can resolve the oil fatty, through touchness with oil material(immersion or spraying), make the oil extracted from the material out. The step is: Immerse the oil embryo(or pretreatment cake) in the solvent, make the oil resolve in the solvent(forms into miscella), then separate miscella and solid redisue(meal), the miscella gets evaporation, stripping by different boiling point, to make the solvent gas evaporates to steam and separate from oil, then get the oil(extraction crude oil). The solvent steam processes condensing, cooling recovery for recycling use. The meal also have certain quantity solvent, after desolventization and drying treatment then get the dry meal, the volatiled solvent steam in the desolventization and drying process needs to be through condensing and cooling recovery for use again. The rotocel extractor is widely use extractor, suitable for all kind of plant oil extraction, its character is high material layer, high miscella concentration, less meal powder in the miscella, simple structure, stable working, low debug, easy maintenance. Etc.

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