Peanut oil extraction plant

• 2016-08-25 20:27
• Cooking oil plant solutions
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Our company is professional in peanut oil extraction plant design, installation, trial run, technical trainning and so on. We can provide you the turn key project of the whole peanut oil extraction plant from 20 to 2000TPD .
As manufacturer of peanut oil extraction plant, we can offer whole line or parts of peanut oil extraction plant with general capacity from 10TPD to 2000TPD. For special capacity, our engineers can also help you design and install workshop according to your capacity and requirements.

In order to improve oil yeild rate and get high quality peanut oil, the peanut oil extraction plant should consist following processes: pretreatment, prepressing, solvent extraction and refining.

Here is a brief introduction of peanut oil extraction plant:

Ⅰ、Pretreatment section of the peanut oil extraction plant
Pretreatment section is to remove the impurities in the raw material and change its structural characteristics, in order to make it suit the requirements of different oil producing process. Oil content of peanut kernel reaches 44%-45%, not suitable for direct solvent extraction; prepressing becomes important to peanut oil extraction plant.

Peanuts
       ↓
Magnitic seperating→ Metal impurities
       ↓
    Cleaning→Other impurities
       ↓
    Husking→Peanut hull
       ↓
    Crushing
       ↓
    Flaking
       ↓
   Cooking
       ↓
　Prepressing→Crude oil
　　↓
　Peanut cake→ Extracting Workshop

1> Cleaning :
Machines needed in cleaning include magnetic separator, cleaning seive, winnowing machine, etc, removing mechanical impurities such as soild, iron impurities, sick seeds, etc. Cleaning prevents following equipments from demage and increases oil yeild as an essential part pf peanut oil extraction plant.

2> Husking :
The main ingredients of peanut shells is fiber, wich would hinder peanut oil extraction . Husking separates hulls from peanuts to improve the oil yielding rate, crude oil quality and meal quality.

 

3> Crushing:
Peanut kernel is big in size; crushing machine/crusher breaks peanut kernel to smaller pieces to impove pressing effect.











4> Flaking:
Flaking damages oil cells, increases oil surface, and shortens the oil outflowing distance, which benefits oil extraction and impoves cooking efficiency.








5> Cooking:
This process can improve prepressing oil yield rate and meal quality, and also adjust the moisture, temperature and plasticity of the flake.

 

6> Prepressing:
To squeeze out part of peanut oil, and improve extracting efficiency.

Ⅱ、Extraction section of the sunflower oil plant
 Extraction section is to extract peanut oil by suitable organic solvent, this method can get  the highest oil yield rate.

Fresh Solvent
         ↓
Cake → Extracting→Wet Meal→Desolventising → Meal
         ↓          
      Miscella                                          ↓
         ↓
 Evaporating and stripping→ Solvent mixture →Condensing and Recovering
         ↓                                                  ↓                      
     Crude Oil                            Solvent Recycling
         ↓
  Refining Workshop

1>Extraction：
To extract the oil in the cake by solvent, the general solvent is 6# extraction solvent oil or commercial hexane.

2>Desolventising:
To remove and recover the solvent in the meal; Dry and cool down the meal at the same time.






3>Evaporating and stripping:
Heating the the miscella by indirect steam, so that can vaporize the solvent and concentrate the miscella.

　　




Ⅲ Refining section of peanut oil extraction plant
Refining section is to remove the impurities in the crude peanut oil and improve peanut oil quality.

           Crude Oil
               ↓
Hot water→Degumming→ Gums
               ↓
Alkali liquor→ Deacidfication → Soap Stock
               ↓
White Clay→Decolorization → Waste Clay
               ↓
           Deodorizing
               ↓
           Refined Oil

1>Degumming：Degumming removes gums as  preparation for subsequent refining processes.
2>Deacidification：Deacidification removes FFA (free fatty acid) in crude oil.
3>Decolorization: Decolorization removes pigments in crude oil by adding white clay, which can improve the oil quality.
4>Deodorization : Deodorization removes odor in crude oil, which can improve the flavor, stability, color and quality of the oil.