Sunflower oil production line

It contains a large amount of linoleic acid and other essential unsaturated fatty acids, which can promote the regeneration and growth of human cells, protect skin health, and reduce the accumulation of cholesterol in the blood. It is a high-grade nutrient oil. It is golden in color, clear and transparent, and has an aromatic odor. The world's consumption of sunflower oil ranks fourth after palm oil, soybean oil and rapeseed oil among all vegetable oils. The global output of sunflower oil is stable between 10 million and 12 million tons. Sunflower oil is one of the most important edible oil varieties in European countries.

 

Ⅰ、Sunflower seed oil pressing equipment production process:

Sunflower Seed→Hulling→Hull and Kernel Separation→Cold Pressing→Filtering→Cold Pressing Oil→Go to Refining Workshop

 

a. The complete set of sunflower oil equipment developed by Zhongrui Grain and Oil Machinery is mainly cold pressing of sunflower seeds, but also hot pressing;

b. Using dehulling, crushing, and cold pressing technology, the pressed oil is light in color, low in acid value and high in nutritional value.

c. The benzopyrene index that customers are more concerned about is solved in the squeezing process, and the nutrients are fully maintained.

d. The oil press adopts a screw cold press, which has a large output, low residual oil, and a higher production efficiency than a single screw press.

Description of main equipment:

 

Ⅱ、Refining process:

1. Brief introduction:

The workshop adopts the intermittent refining process. According to the type and quality of crude oil, the process parameters can be adjusted and different refining methods can be selected to produce the first, second and third grade edible oil; The process equipment we provide has the following advantages:

Flexible and convenient adjustment, even if the quality of raw materials changes slightly, normal production can be achieved;

Maximum heat utilization, remarkable energy saving effect;

The fully enclosed production process avoids the oxidation of oil and ensures the high quality and stability of products;

The appearance of the equipment is clean and beautiful, the quality guarantee time of the equipment is long, and the life-long after-sales service is provided;

2.flow diagram：

                        Caustic soda         Hot water       White clay      vacuum        Recycled water

                                   ↓                         ↓                     ↓                     ↓                    ↓ 

       Crude oil → Alkali refining → Degumming → Bleaching → Deodorize → Cool down → Deodorized oil → Go to the dewaxing workshop

 

3.process description:

(1) alkali refining operation: adjust the oil temperature to about 60 ℃, then add 20-30be lye (1kg caustic soda + 5kg water lye) in 5-10min, and stir for 5-10min under the condition of 60R / min, observe the separation condition of soap particles after reaction, and start to raise the temperature slowly, change to slow stirring, increase about 1 ℃ per minute, when the temperature reaches 65 ℃, oil soap separation is obvious, stop stirring, Generally, it takes 4-6h to let out the soap residue.

(2) water washing operation: after the soap foot is released, the oil is further heated to 75 ℃, and then hot water more than 5% of the oil weight is added for water washing. The water temperature should be 5-10 ℃ higher than the oil temperature, and it is easy to emulsify when the water temperature is too low; After adding water, continue to stir for 5min, then static sedimentation for 3-4h, release soapy water, and repeatedly wash for 1-2 times, depending on the quality of clean oil.

(3) decolorization operation: start the vacuum pump to make the vacuum ≥ 700mmhg; First, the washed alkali oil is sucked into the decolorizing tank, and the stirring is started under vacuum. After the temperature reaches 100 ℃, the stirring is continued for 10min to reduce the water content in the oil to less than 0.1%. Then, a small amount of decolorizing agent (clay or activated carbon) is inhaled. The addition amount depends on the oil, generally 2% - 4% of the oil. After stirring for 20min, the temperature is reduced to about 90 ℃ to break the vacuum, Open the decolorization pump to the filter for oil and soil separation to obtain decolorized oil.

(4) Deodorization operation: the decolorized oil is sucked into the deodorization tank by vacuum. When the vacuum degree reaches 755mmhg and the temperature is above 150 ℃, the direct steam at the bottom is opened to start distillation deodorization, and the timing is started;

① deodorization time: 2-3 h.

② deodorization temperature: 220 ℃ - 240 ℃.

③ deodorization vacuum degree: above 755mmhg.

④ the whole process must be directly steam distillation.

4. Description of main equipment：

Serial number	device name	quantity	description
1	Refining tank	2	Used for acid refining, alkali refining and water washing
2	Decolorizing tank	1	Used for dehydration, mixing oil and decolorant
3	Deodorization tank	1	It is made of 304 stainless steel and used for distillation to remove oil odor and light components
4	Vacuum pump	1	The vacuum needed for decolorization and deodorization can reach 755mmhg
5	Air compressor	1	Drying bleaching clay
6	Steam generator	1	Generate steam for distillation
7	filter	1	Filtration separation of clay oil
8	Heat conducting oil furnace	1	Provide system heat energy,temperature can reach 300℃

 

Ⅲ、 Dewaxing process

1. Brief introduction:

Sunflower seed is one of the four major oil crops in the world. The oil content of sunflower seed is about 40% - 45%. Sunflower seed oil is rich in essential fatty acids for human body. The content of unsaturated fatty acids is as high as 85% - 90%, and the content of linoleic acid is as high as 65% - 70%; Sunflower seed oil contains a small amount of wax (generally 0.06% - 0.1% of crude oil). The existence of wax not only affects the transparency and taste of the oil, but also causes smoke and choking smell when cooking, which affects human health; Therefore, it is difficult to improve the quality of sunflower seed oil without dewaxing.

Equipment features of the workshop:

Flexible operation and low labor intensity;

The production and production environment is clean and sanitary under the closed state;

All clean tap water is recycled, no sewage is generated and discharged, meeting the environmental protection standards;

2. Description of dewaxing process:

Deodorization oil → precooling → crystallization and crystallization → filtration and separation → product oil

 

3. Description of main equipment：

Serial number	device name	quantity	description
1	Crystallizer	3	It is used for oil freezing and crystallization
2	Refrigeration unit	1	Provide low temperature refrigerant to cool and freeze the oil
3	filter	1	Used to separate oil and wax
4	Refrigerant pump	1	For refrigerant circulation
5	Finished oil tank	1	Used for temporary filtration of product oil
6	Product oil pump	1	It is used to transport product oil to product oil tank