Edible Oil Extractor

Working Principal of Edible Oil Solvent Extraction

Solvent extraction is an advanced oil manufacturing method widely used in the world. The process includes solvent extraction,miscella separation, wet meal desolventizing and drying, and solvent recovery.

Solvent extraction adopts a selected organic solvent that can dissolve oil to extract oil from pretreated oilseeds or pre-pressed cake by immersion or percolation in the oil extractor. The mixed liquor obtained is called miscella. The wet meal is discharged from the meal outlet and sent to the desolventizer toaster to remove the solvent. The thick miscella is filtered and sent to the evaporation system. Utilizing the difference of boiling point between the selected solvent and oil, after miscella evaporation and stripping, the solvent evaporates and separates with oil, thus the crude extracted oil is obtained. The solvent vapor is condensed and cooled for reuse. The crude oil is sent to the refining workshop and undergoes a series of refining processes such as degumming,de-acidification, bleaching, and deodorization to obtain the edible oil.

Types of Edible Oil Extractor Machine

We provide rotocel extractor,loop type extractor,drag chain extractor and tank extractor for your choice.

Rotocel Extractor

Rotocel extractor is a continuous combined type oil extractor. The rotor consisting of material cells rotates around the main shaft for one cycle to complete the extraction process. Rotocel extractor is the most widely used edible oil extraction equipment, suitable for small and medium oil extraction plants.

Rotocel extractor is suitable for the oil extraction of peanut, rapeseed, cottonseed, sunflower seed, sesame, corn germ, camellia seed, flax seed, castor seed, soybean, rice bran, safflower seed, palm fruit cake, palm kernel cake, copra, grape seed, evening primrose seed, etc. The extractor is especially suitable for the extraction of various pre-pressed oil cakes. Rotocel extractor is also used for extracting capsicum red pigment.

Loop Type Extractor

Loop type extractor is a continuous combined type extractor suitable for large-scale oil extraction plants. Dragging by the drag chain conveyor, the materials rotate for one cycle to complete the extraction process. The loop-type extractor is suitable for the oil extraction of peanut, rapeseed, cottonseed, sunflower seed, corn germ, camellia seed, flax seed, soybean, rice bran, evening primrose seed, etc.

Drag Chain Extractor

Drag chain extractor or towline extractor is a continuous immersion type extractor.The drag chain drags the materials to run for one cycle in the extractor to complete the extraction process.The towline extractor is suitable for large-scale oil extraction plants. It is suitable for direct extraction of soybean, rice bran, etc, and pre-pressing extraction of cottonseed, rapeseed, sesame, camellia seed, tung seed, sunflower seed, corn germ, grape seed, etc, as well as alcohol leaching of protein.

Batch Tank Extractor

Tank extractor is an immersion-type oil extractor. Each extraction tank works in batches with the procedures of materials feeding, immersion, steam blowing, steam stripping, and meal discharging. Several tanks form a continuous extraction process. Tank extractor is suitable for small-scale oil extraction plants with a capacity below 20 TPD. It can be used for extracting oil from rapeseed, sunflower seed, peanut, soybean, rice bran, cottonseed, camellia seed, flax seed, tung seed, grape seed, etc. Tank extractor is also used for extracting oil from spent bleaching clay from the bleaching process.