Edible Oil Extraction Equipment

Edible Oil Extraction Equipment


Edible oil extraction equipment or tank extractor is a small-scale batch-type edible oil solvent extraction equipment. Tank extractor has both the function of extraction and meal desolventizing.It extracts oil by immersing the pre-pressed cake in solvent or miscella of various concentrations.


  • Simple equipment, low investment, quick returns.
  • Less equipment, low power consumption, small land occupation.
  • Having steam stripping function, no need for desolventizing-toaster.

Application of Edible Oil Extraction Tank

The small oil extractor is suitable for small-scale edible oil plants.It can be used for extracting oil from the pre-pressed cake of various oilseeds such as rapeseed, sunflower seed, peanut, soybean, rice bran, cottonseed, camellia seed, etc.

stripping column

Structure of Edible Oil Tank Extractor

The edible oil extraction equipment consists of a tank body, transmission part, stirring apparatus, meal discharge part balancing device, etc.

Tank Body

The top of the tank is cone shape. On the upper head, there are feed pipe,miscella/solvent inlet pipe, steam blowing pipe,blow-down pipe, overflow pipe, pressure gauge, explosion-proof valve nozzle, etc. On the cone at the tank bottom, there are miscella outlet pipes, steam stripping pipes, etc.

tank extractor structure

Transmission part

The transmission part is on the top of the extraction tank. Adopt a 2-speed drive with belt pulley and worm gear.

Stirring apparatus

The stirring apparatus is used to remove the extracted meal during solvent stripping. On the spindle, there are two layers of the single-arm stirring blade.

Meal discharge door

Meal discharge door is at the bottom of the extraction tank and is reversal.

Working Process of Mini Solvent Extraction Plant

The process of this mini solvent extraction plant includes cake loading, extraction, steam blowing, steam stripping, and meal discharging.

how edible oil be extracted by oil solvent extraction equipment
  1. Through the screw conveyor, the pre-pressed cake from the pre-pressing workshop is sent to the extraction workshop. Through the bucket elevator, the cake is lifted to the overhead screw elevator and enters the extraction tank. Or the cake enters the buffer bin separately and then enters the extraction tank concentratedly to shorten loading time.
  2. After loading, seal and close the cover tightly.
  3. Open the solvent pump and various valves and pump out the fresh solvent from the solvent holding tank. Open the steam valve and enable the temperature of the solvent to rise in the solvent pre-heater. When the temperature reaches 45-50C, the solvent enters the tank extractor through the spraying pipe. The height of the solvent should exceed the level of the cake by 20-50 mm. Open the solvent-carrying air valve for normal immersion.
  4. After being immersed for 40-60 minutes, pump the miscella into the temporary storage tank or miscella treatment system, and then pump fresh solvent into the extraction tank to immerse again for 40 minutes. Pump the miscella into the next extraction tank. Replenish with fresh solvent if the miscella is inadequate.
  5. After steam blowing and steam stripping, the remaining solvent is removed from the wet meal, and then the meal is discharged through the meal discharge door.

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