The oil flaking pieces/cakes from oil pretreatment plant enter the oil solvent extraction plant. Through specific oil extractor, the solid-liquid extraction method is used to achieve full contact between the solvent and the oil, so as to fully dissolve and extract the oil. The miscella and wet meal extracted from the flaking enter the mixed oil evaporation and wet meal desolvation systems respectively. The mixed oil evaporates and the solvent recovery to obtain crude oil. At the same time, the wet meal desolvation system also recovers the solvent in the meal to obtain the extracted meal.
The oil solvent extraction plant generally includes four parts: oil extraction, wet meal desolventizing, mixed oil evaporation and solvent recovery processes. After oil solvent extraction plant, the residual oil rate in the meal is less than 1%.
1. Oil extraction: Extraction principle isusing solvents to extract oil from oil seeds. The commonly used solvent is n-hexane
Oil extraction machine: rotocel extractor, loop type extractor, chain extractor
2. Miscella treatment: Miscella is grease containing oil solvent. In order to remove the solvent in the oil, the solvent can be separated by evaporation and stripping (evaporation temperatures are different)
1) Evaporation: First evaporation, the mixed oil concentration is 70-75%
Second steaming mixed oil concentration 85-90%
2) Stripping: mixed oil concentration 99.8%
Mixed oil treatment equipment: evaporator, stripper
3. Wet meal desolvation is to remove the solvent in the meal, using evaporation, drying and cooling methods.
Main equipment: DTDC Desolventizer Toaster
4. Solvent recovery: The purpose is solvent recycling and reduce solvent consumption. Mainly involves solvent-containing exhaust gas and wastewater
1) Solvent steam/mixed steam---condensation/water separation---solvent turnover tank
2) Free gas---mineral oil absorption---condensation/water separation---solvent turnover tank
3) Solvent-containing wastewater---cooking---water separation---sewage treatment
Solvent recovery equipment - condenser, water distribution tank, exhaust gas recovery system
Huatai can provide you with a complete set of engineering solutions for 100-10,000TPD oil solvent extraction plant, which is suitable for a variety of oil seeds, such as soybeans, rapeseed, sunflower seeds, cottonseed, rice bran, peanuts, corn germ, tea seeds, sesame, etc.
Product Application: It is widely used in chamical, oil, petroleum, paint, food,
Product Application: It is widely used in chamical, oil, petroleum, paint, food,
Product Application: It is widely used in chamical, oil, petroleum, paint, food,
Product Applications: It is widely used in chemical, oil, petroleum, paint, food
Product Application: A desolvation and drying equipment are for extracted meal;
Production Application: The drag chain extractor is a derivative of loop type ex
Product Applications: Loop type extractor is one kind of extractors wirh more ap
Product Application: Rotocel extractor is the most widely used one. It is suita