High oil yield low residual oil rate with good quality peanut process machine

DOING company is professional in peanut oil processing machine design, installation, trial run, technical training and so on. We can provide you the turn key project of the whole peanut oil processing machine from 20 to 2000TPD .

As manufacturer of peanut oil processing machine, we can offer whole line or parts of peanut oil processing machine 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 yield rate and get high quality peanut oil, the peanut oil processing machine should consist following processes: pretreatment, prepressing, solvent extraction and refining.

Here is a brief introduction of peanut oil processing machine:

Ⅰ,Pretreatment section of the peanut oil processing machine

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 processing machine.

         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 processing machine.

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 peanut oil processing machine

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 processing machine

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.

Henan Doing Mechanical Equipment Co., Ltd is one leading producer of cooking oil machine in China. Our company service includes technology design, installation and debugging, technical training, relocation of oil plant, technology reform and turnkey project.

 Wooden case or full container for shiiping different plants

Why is Doing?

1. More than 40 years experiences in oil machine field.
2. Good quality control in production process.
3. 26 technical engineers research on new efficient processing craft and instruct manufacturing and installation.
4. 76 technicians-professional installation team-with rich and mature installation and training experience.
5. CE and ISO9001
6. Pre-sales Service
Work as your technical assistant, special design for you according to your site, construction condition and other requirements.

7. Sales
a. Install and debug equipment according to contract;
b. After sales engineer will help you do prepare works for the first start up and debug for you;
c. In the working site, we supply operation and serviceman for free. Besides, we can make sure operator can get hold of usage, working requirement, correct maintain way and diagnose remove corrected when machine broke down.

8. After-sales Service
a. Remind user maintain machine for certain time each year;
b. Guarantee spare parts for free;
c.Out of warranty period, we can supply paid service and spare parts all time.

1. How can we see the working machines? 
You are warmly welcome to visit our factory, our engineers will explain you the machines details one by one.
2. How can we choose the right model number oil press?
You can choose the right model number according to the raw material you use and the output capacity you need.
3. Will you offer training?
Yes, free training will be offered after the installation.
4. What is your guarantee time?
At least one year with all necessary after-sale service provided.
5. Where is your factory?
Our factory is located in Zhengzhou city which is the capital of Henan province, China. It is very convenient for you to visit here, no mater you come here by train or by air.