Setting Up Sunflower Oil Processing Plant

Setting up an sunflower oil mill is indeed a good investment. Because it could bring much profit. Sunflower Oil mill machinery will determine your oil mill’s future. Whether you are a manufacturer with rich experience or a beginner who is just starting, choosing sunflower oil mill machinery directly has an impact on your production efficiency and profit. If you don’t know how to select sunflower oil mill machinery, this post will provide a guide.

Small Scale Sunflower Oil Processing Plant

Cleaning: a clean sieve is used to remove impurities in sunflower seed, which is usually composed of different-sized screens and a suction system capable of removing tiny particles. In addition, we could carry out a customized design based on the specific impurity situation. If your material cleanliness meets standards, do not use this equipment.

Flaking: flakers are used to further crush sunflower seed. It breaks the cell wall by applying pressure. This makes the oil drainage process much easier.

Cooking: the sunflower seeds are heated before being pressed. To increase the oil yield, the temperature and moisture content are usually adjusted. During the hot pressing process, the oil seeds will be heated before being pressed. If the cold pressing is chosen, this equipment does not need to be installed.

Pressing: the sunflower oil press machine extracts oil by mechanical method, or pre-compression treatment of the sunflower seed is carried out before solvent extraction. Press machine has two types, hydraulic presses or screw presses. A hydraulic press is a pure physical oil extraction method. During the oil extraction process, no temperature is generated, and the organic components of the oil are not damaged. It is suitable for some oil-rich oils (such as sesame, almonds, and peanuts). During the oil extraction process, using a spiral oil extractor, there is friction between the machine rings, which can damage the organic components of the oil. During the rotational friction process, some oils with high oil content will form oil sludge and be squeezed out from the pressure ring, resulting in a higher content of impurities in sunflower oil.

Refining: it is to remove harmful chemical substances. The refining process includes degumming and desalination steps, which make people get healthier sunflower oil.

Large Scale Sunflower Oil Processing Plant

First of all, sunflower seeds are selected and cleaned to remove impurities, and then the seeds are de-husked and crushed. After that the embryo is flaked and steamed in the frying pan, the fried product is pre-pressed out of the oil and the remaining oil is extracted by solvent extraction, then the crude oil is purified through precipitation and filtration. Finally, the oil is dissolved, degummed, decolorized, deacidified and deodorized into the refined oil. More specifically, the operation steps and equipment for processing sunflower oil are as follows:

1. Pretreatment and pre-pressing of sunflower seeds

Sunflower seed is a kind of oilseed with high oil content, so it needs to be pre-pressed when making sunflower seed oil. After a series of equipment processing, the sunflower seeds are adjusted to the best state, and then sent to the sunflower seed oil pre-press (oil press) to extract some sunflower seed oil.

Cleaning → shelling → flaking → steaming → pre-pressing → pressing→ Sunflower Oil And Cake

A. Cleaning: Use magnetic separators, cleaning sieves and stone removers to remove iron filings, stones, grass, soil and other impurities in sunflower seeds.

B. Shelling: Use a shelling machine to remove the shells of sunflower seeds to prevent the shells of sunflower seeds from absorbing oil, so as to reduce oil loss.

C. Flaking: The peeled sunflower seeds will be transported into the flaking machine, and the sunflower seeds are rolled into thin slices, which destroys the cell tissue and makes it easier for the oil to flow out.

D. Steaming and frying: The steaming cooker can adjust the temperature, humidity and internal structure of sunflower seeds, and can produce better oil when pressing.

E. Pre-pressing: The fried sunflower seeds will be sent to the pre-pressing machine for pressing, and a part of the oil is extracted firstly, which can increase the yield of sunflower oil. The oil content of the pre-pressed sunflower cake is 15%, which can be extracted by leaching process, or sent to the press machine for secondary pressing.

F. Pressing:The oil press machine makes the oil in the sunflower cake flow out through the external force of mechanical extrusion, so as to obtain the pressed sunflower oil. The residual oil rate of sunflower seed cake after pressing is about 6%. After pre-pressing, part of the sunflower oil and sunflower seed cake will be obtained.

2. Solvent extraction of sunflower seed oil

The solvent extraction equipment of sunflower seed oil is used to extract the remaining oil from sunflower seed cake. The final residual oil can be less than 1%. It is usually suitable for large-capacity sunflower seed oil processing plants above 50tpd.

Sunflower Oil And Cake → Extractor → Solvent Recovery → Steam And Remove Wet Meal → Mixed Oil Treatment → Crude Oil And Meal

Sunflower oil cake leaching: the sunflower seed cake is sent to the (leaching equipment) extractor through the conveying equipment, and after solvent leaching, the mixed oil containing the solvent and the wet meal containing the solvent are obtained.

Desolvation and drying of wet meal: The sunflower meal contains 25% to 35% of the solvent. In order to recover these solvents and obtain the sunflower meal of better quality, we use desolventizer toaster to desolvation drying the solvent.

Evaporative stripping of mixed oil: The mixed oil contains oil and solvent. The solvent and oil are mutually soluble and the boiling points are different, so the solvent can be separated from the mixed oil by the evaporator and the stripper.

Solvent vapor condensation recovery process: Through condensation recovery, the solvent separated from the wet meal and the mixed oil can be recovered and reused, which reduces the solvent loss in the leaching process and reduces the cost of sunflower oil production.

3. Sunflower seed oil refining section

If you want standard sunflower seed oil that can be sold in supermarkets, you should refine the crude sunflower seed oil. The purpose of sunflower seed oil refining equipment is to remove harmful impurities and useless substances, such as protein, phospholipids, pigments, moisture, wax and other impurities. The refined sunflower seed oil reaches the first-class oil standard, which can achieve the purpose of storage and sale.

Sunflower Crude Oil → Alkali Refining → Degumming → Centrifugal Drying → Continuous Decolorization → Dewaxing → Continuous Deodorization → Filtration → Finished Sunflower Oil

Degumming process:

The peptizing impurities in sunflower oil not only affect the stability of oil, but also affect the technological effect of oil refining and deep processing. Peptide impurities will cause emulsification of oil in the alkali refining process, increase the difficulty of operation, increase the loss of oil and lye, and reduce the quality of soapstock; in the process of decolorization, peptoid impurities will also increase the consumption of adsorbents , reduce the bleaching effect.

Deacidification process

The deacidification process is mainly used to remove free fatty acids in sunflower oil. The common method of deacidification is alkali refining. The lye can neutralize the free fatty acids in sunflower oil, and the resulting sodium salt is not easily dissolved in the oil, and becomes flocculent and settles. The resulting sodium salt is a surfactant, which can bring a considerable amount of other impurities into the sediment, such as proteins, mucus, pigments, phospholipids and substances with hydroxyl and phenolic groups. Even suspended solid impurities can be carried down by the flocculent soap mass.

Decolorization process

Decolorization of sunflower oil is commonly performed by adsorption decolorization. The principle of the adsorption decolorization method is to use the adsorbent with strong adsorption force to adsorb pigments and other impurities in hot oil, and to remove the adsorbed pigments and impurities while filtering and removing the adsorbent, so as to achieve the purpose of decolorization and purification. Our commonly used adsorbent is activated clay.

Deodorization process

After sunflower oil is deacidified, there will still be trace amounts of aldehydes, ketones, hydrocarbons, low-molecular-weight lipids, oxides of glycerol phenol, clay, and residual solvent odors after decolorization. The process of removing these odors is called deodorization process. During deodorization process, high-temperature direct steam should be introduced into the oil first, and the difference in volatility between grease and odorous substances should be used to remove these substances, thereby completing deodorization process.

Dewaxing process

The wax in sunflower oil will affect the flavor and taste of the oil, which requires the operation of the dewaxing process. At present, the frozen crystallization method is basically used in the production of edible oil. After dewaxing process, we will obtain the first-class sunflower oil that meets the national standard.

How do you start a sunflower oil processing plant?

1. When investing in a sunflower oil processing project, no matter the scale of the project, it is recommended to find a powerful sunflower oil production plant manufacturer for assistance. Taize has rich experience in the manufacture of edible oil processing machinery and a large number of transaction cases, and is a powerful assistant for the majority of users to invest in the construction of oil plants. We provide technicians for process design, machine installation, commissioning, and personnel training. Our oil processing machines have been installed in a large number of countries and brought customers great benefits.

2. In terms of investment scale, for investors with limited conditions and low budgets, they can start with small investments, such as opening an oil mill plant. It has more flexible processing.

3. To invest in a sunflower seed oil production plant, the first is the choice of a sunflower oil press. For sunflower oil pressing, most users will choose a screw press.

4. In order for the sunflower oil processed by the user to have a wider market, it is recommended to set a refining oil process, which can refine the pressed sunflower oil to the first-class sunflower oil standard.

Setting Up Sunflower Oil Processing Plant

Setting Up Sunflower Oil Processing Plant

Small Scale Sunflower Oil Processing Plant

Large Scale Sunflower Oil Processing Plant

1. Pretreatment and pre-pressing of sunflower seeds

2. Solvent extraction of sunflower seed oil

3. Sunflower seed oil refining section

How do you start a sunflower oil processing plant?

Customized Professional Plan