Jinan Hutai Vegetable Oil Solvent Extraction Plant

Jinan Hutai Vegetable Oil Solvent Extraction Plant flowchart:
Oilseeds → cleaning → softening → flaking → extrusion → drying → to extraction workshop→DTDC →first and second evaporation →stripping tower →condenser →solvent
recovery

Jinan Hutai Vegetable Oil Solvent Extraction Plant brief introduction:
a. cleaning device for soybean Oil Plant:remove the raw material soybean in various impurities, such as: iron,
stones, clump, such as the plant leaf, clean up till impurity content does not exceed 0.2%.
b.crushing machine for Soybean Oil Plant: soybean is crushed into 6-8 pieces. In order to meet the requirements
of crushing, the soybean is suitable for crushing with the moisture of 7% to 12%.
c. Softening process for Soybean Oil Plant:the purpose of softening is to adjust the moisture and temperature of oil, and make it soft.
d.flaking process for Soybean Oil Plant: rolling raw material into flakes, and the purpose is to increae surface
area, destroy the soybean cell tissue, shorten the way of oil out from cake.
e:Extrusion for Soybean Oil Plant:through high temperature and high pressure, soybean flakes are transfered into expanded pellet, which is easy to extract oil from, and keep high nutritive value.
Jinan Hutai Vegetable Oil Solvent Extraction Plant Extraction process:
1. Solvent pumps for Jinan Hutai Vegetable Oil Solvent Extraction Plant: continuously spray solvent to the rotary-type extractor
2. Roary extractor: Spray and soak the pre-pressed cake with solvent so that oil fats can be diss-olved in solvent(form miscella). After processing, you can get wet meal and miscella (mixed oil).
3. DTDC for Jinan Hutai Vegetable Oil Solvent Extraction Plant: usd to separate the solvent from the wet meal.
4. Miscella tank 1st evaporation for Jinan Hutai Vegetable Oil Solvent Extraction Plant: pump the miscella (oil with solvent) in to the miscella 1st , then add
saline water to it. The phospholipid in the miscella will react with the saline water, at last the reactant
precipitate, reaching the goal of purifying.
5. Miscella tank 2nd evaporation for Jinan Hutai Vegetable Oil Solvent Extraction Plant: the purified miscella will be pumped into it, and use high temperature steam to let solvent evaporate out.
6. Miscella stripping for Jinan Hutai Vegetable Oil Solvent Extraction Plant: it will remove the remaining solvent in miscella. And the solvent will be discharged to condenser for recycling.
7. Condensers for Jinan Hutai Vegetable Oil Solvent Extraction Plant: to cooling the solvent gas separated from the wet meal and miscella for recycling.

Jinan Hutai Cooking Oil Solvent Extraction Plant

The solvent extraction processing inlcudes four sections: solvent extraction setion; meal desolvetizer; miscella oil distillation section ;solvent recovery setion

Solvent Extraction: The meal(cake) come from prepressing plant is conveyed to buffer bin by scraper

conveyor. The buffer bin can control the meal level automaticaly. So the meal buffer bin play a role as seal which keeps the solvent gas in extractor. The meal is dipped in the solvent( first different concentraction spraying, then fresh solvent spraying ). The dripdry meal enter the meal outlet deivce. Outlet meal is

conveyed to DT Desolvetizer. The miscella oil is handle by meal cyclone. Then pumped to miscell oil

distillation section.

Meal desolventizer: The meal come from solvent extraction section is conveyed to desolvetizer by scraper converyor. The desolventizer consist of 9-10 layers. 1-3 layers( above) is pre-heating section; 4-6 layers is self-evaporatint section; the 7 layers is evapration by direct steam;

9,10 layers is dryer and cooling setion;The meal is handle from above to bottom( evaporation, dryer,cooling) to the required stadard: residual oil contet is 0.07%; mositure content is 12%; temperature is 40 degree.Then is conveyed to package section.The mixing vapor( solvent,steam,meal fines) enter into Long tube evaporator as heat media. Before that the meal fines is removed by wet catcher. Meal fines is droped into the scraper convey . Then conveyed to meal package section.

Miscella oil distillation: The miscella oil come from solvent extraction section is remove meal fines by cyclone. Then enter into the vertical type( long) miscella tank to do future nature sedimentation. The miscella oil in pumped into first long tube evaporater. Then pumped into second long tube evaporater. After twice distillation and separator. The oil finally pumped into stripping tower. The residual solvent in outlet oil( from stripping tower) is below 0.05%; the temperatrue is 105 degree. This standard oil is sent to heat exchanger to down the temperature. After that is pumped to refining section. The Negative pressure in evaparator and stripping tower is created by steam vacuum pump.

Solvent recovery: The mixing vapor ( solvent,steam) come from desolventizer, first long tube evaporator and second long tube evaporator enter into the condeser to condense. The condesed liquid is sent to watersolvent separating tank. But after that, there is till another little another vapor which is sent to Paraffin Oil recovery system. The solvent from separating tank is pumped to solvent storage tank. The water is pumped to boiling tank to recovery little solovent( maybe have). Then is outlet.

Solvent Extractor

The Extractor is the main equipment in a Solvent Extraction Plant. It is designed in perfect measurements so as to obtain high quality oil and minimum residual oil. The material is transported through the solvent spraying chamber and the speed of transportation can be varied easily. The machine is designed to give sufficient time for penetration and percolation of solvent into the raw material and to view the distribution, view glasses are provided.

Desolventiser-Toaster

The material obtained from the extractor has tendency to retain the solvent, and this solvent has to be recovered. The basic principle involved in Desolventiser Toaster is direct and indirect heating to remove all the residual solvent from the material.

Condensers

Solvent Vapours are formed both in Desolventiser and distillation section and these are to be condensed. Adequate surface has been provided in the Condensor for complete condensation of solvent vapour.

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