METHOD FOR EXTRACTING MATERIALS AND DEVICE FOR IMPLEMENTING SAME

摘要

The invention applies the extraction techniques with the use of vacuum and can be used for extraction of valuable biologically active agents from vegetable, animal, fish, seafood, and other raw materials, which are used in food and pharmaceutical industry. Before the extraction procedure, the proposed method of extraction envisages to treat the raw materials by preliminary extraction with the extracting agent heated to the temperature not allowing denaturation of raw materials and the final product. The extracting agent is either distilled water or watered alcohol of concentration not less than 20% and ratio (extracting agent : raw material) not more than 2 by means of rolls, to carry out both the impregnation of raw material with the extracting agent and extraction in vacuum-impulsive mode in the extractor, to carry out catching of extract essential oils followed by condensation in dedicated condensers so that the obtained extract undergoes vacuum-impulsive filtration and concentration. The device for extraction of material comprises a screw dozer and continuous heated rolls with a vessel to receive press cake impregnated with the extracting agent, two parallel extractors, pipelines connected to a reflux condenser, a foam-destroying device, and vessels to store and prepare the extracting agent and the extract interconnected filters and condensers, additionally connected with a receiver which is equipped with a vacuum pump and pipelines. The invention provides a continuity and intensity of the extraction process its high performance, high yield and quality of the products obtained from raw materials.