EN

RU
  • Rice bran oil extraction production line

Rice bran oil extraction production line

Features:
Process flow of rice bran oil extraction production line: Pretreatment of rice bran oil extraction production line The rice bran enters the pretreatment workshop of the leaching oil plant after the bran separation, and it is initially cleaned to remove impurities. The magnetic separator selects iron impurities and enters the rice bran extruder for expansion. The expanded rice bran has a higher moisture content , It needs to be lifted to the flat plate dryer and then transported to the leaching w

We're here to help:Easy ways to get the answers you need.

products list

Oil making machine

Oil Refinery

Chemical machine

Oil Extraction machine

 Rice bran oil extraction production line
Rice bran oil extraction production line
Characteristic index of rice bran oil produced by rice bran oil extraction production line
Refined rice bran oil is light yellow to brownish yellow oily liquid with relative density (15/25) 0.9130.928.
Melting point -5-10.
Iodine value 98110. Directory name contains entry name main ingredients nutritional ingredients
1.oleic acid  40-52%
2. Linoleic acid 29-42% 3. Linolenic acid 0.5-1.8%
3.Palmitic acid 12-18%
5.Stearic acid  1.0-3.0%
6.Phytosterol  4.5-6.5% Gu Wei Su  0.1-0.5%
Test item standard
Color (25.4MM) Yellow Y10-40; Red R4
Free fatty acid (%) 0.20
Water volatile matter (%) 0.05
Impurity (%) 0.05
Peroxide value (mmol/kg) 20 Other components
Unrefined wool bran oil contains 3% to 5.5% unsaponifiable matter. Rice bran oil
The acid value is relatively high, containing about 25% of free acid, in addition to bran chips 1% to 5%, bran wax 3% to 9%, phospholipid 1% to 2%, and a small amount of other impurities are mainly oryzanol, sterols and advanced Fatty alcohol, etc. Fatty acid composition
Rice bran oil has a balanced fatty acid composition and is rich in dozens of natural biologically active ingredients such as Ve, complex lipids, phospholipids, tocotrienols, squalene, phytosterols (5%), oryzanol (0.5%), etc. The content of unsaturated fatty acids is as high as 80%. Rice bran oil is a unique and precious healthy edible oil. It is a good oil for making nutrient oil, blended oil, frying oil, food raw materials
Nutritional value of rice bran oil produced by rice bran oil extraction production line
Rice bran oil has high nutritional value. In developed countries such as Europe, America, Korea and Japan, it is a healthy nutrient oil with the same name as olive oil. It is loved by people with high blood lipids and cardiovascular and cerebrovascular diseases, and has already become the daily health of Western families. Cooking oil.
China, Thailand, Myanmar, India, Bangladesh and Africa are rich in raw materials for rice bran oil, but the production and consumption of rice bran oil is still in its infancy. Experts recommend accelerating the development of rice bran oil, and let this healthy nutrient oil enter the daily life of the people as soon as possible. High nutritional value
Rice bran oil is a kind of edible oil with high nutritional value. The composition of rice bran is oil and fat 15% to 22%, which is equivalent to the oil content of soybean, protein is 12% to 16%, nitrogen-free extract is 33% to 53%, moisture is 7% to 14%, ash is 8% ~12%.
After removing the rice husk, the rice is brown rice. The brown rice is composed of three parts: rice bran layer, embryo and endosperm. The rice bran layer accounts for about 7.5% of the total weight of brown rice, and the embryo accounts for about 2.5%. The rice bran layer is composed of a peel, a seed coat, an endosperm, and aleurone layer. The fat in brown rice is mainly concentrated in the aleurone layer of the embryo and rice bran layer, especially in the embryo.
Rice bran oil is a nutrient-rich vegetable oil with an absorption rate of over 90% after eating. The fatty acid composition of rice bran oil, vitamin E, sterol, oryzanol is beneficial to human body absorption, and has beneficial effects such as removing cholesterol from blood, lowering blood lipids, and promoting human growth and development. Therefore, rice bran oil is recognized as a nutritious and healthy oil at home and abroad. At the same time, because rice bran oil itself has good stability, it is suitable for frying oil, and can also be used to make margarine, shortening, and advanced nutrient oil.
Rice bran oil contains about 38% linoleic acid and about 42% oleic acid. The ratio of linoleic acid to oleic acid is about 1:1. From the perspective of modern nutrition, this proportion of oil has a High nutritional value.
Rice bran oil is rich in oryzanol. Oryzanol is a family of compounds composed of dozens of sterol ferulic acid esters. It can prevent self-synthesis of cholesterol, reduce the concentration of serum cholesterol, promote blood circulation, and regulate endocrine and autonomic nerves. Can promote the growth and development of humans and animals. Oryzanol can promote the circulation of skin microvessels, protect the skin, and has a curative effect on concussion and other diseases

Rice bran oil also contains a lot of nutrients such as fat-soluble vitamins, sitosterol and other plant sterols in rice bran and germ.
At the same time, both vitamin E and oryzanol have antioxidant effects, which makes rice bran oil oxidatively stable and easy to store.
Rice bran oil has been liked by many countries in the world. The retail price of rice bran oil in the US market is US$2.6-3.00/kg, far exceeding the selling price of traditional edible oils such as soybean oil and peanut oil.


Process flow of rice bran oil extraction production line:
Pretreatment of rice bran oil extraction production line
The rice bran enters the pretreatment workshop of the leaching oil plant after the bran separation, and it is initially cleaned to remove impurities. The magnetic separator selects iron impurities and enters the rice bran extruder for expansion. The expanded rice bran has a higher moisture content , It needs to be lifted to the flat plate dryer and then transported to the leaching workshop through the scraper.

Extraction, steaming off of rice bran oil extraction production line
The expanded rice bran enters the leaching workshop and enters the seal auger of the leacher. After the expanded rice bran enters the extractor, it is separated in different feeders and leached by countercurrent leaching. The concentration of the mixed oil leached in six cycles is gradually reduced, and then washed with pure solvent. At this time, the oil and fat in the rice bran was almost left, and it became bran meal. The bran meal was dripped and dried and then transported to the steamer by the buried scraper conveyor. The role of the evaporator is to heat and evaporate the bran meal containing a large amount of organic solvent after leaching, so that the meal is separated from the solvent. The bran meal is transported to the packaging workshop, and the solvent is evaporated into gas to be condensed and recovered.

Rice bran oil extraction production line mixed oil evaporation
The mixed liquid after the fat in the expanded bran is extracted by the solvent in the extractor is called mixed oil. The mixed oil is sent to the temporary storage tank of the mixed oil through the mixed oil pump, and then passed through the first evaporator, the second evaporator and the layer butterfly stripping After the tower evaporates, the solvent in the mixed oil is basically evaporated, and the rest is rice bran crude oil, which is sent to the crude oil tank by the crude oil pump.

Solvent recovery of rice bran oil extraction production line
The solvent vapor in the leacher and the free gas in each container equipped with mixed oil are collected in the balance tank through the pipeline, and then condensed and recovered by the condenser, and recovered by the tail gas of the mineral oil. The solvent gas evaporated by the first evaporator, the second evaporator, the layer butterfly stripper, and the evaporator all pass through their respective condensers to condense the solvent gas into a solvent for recycling and reuse. These condensers form a condensing system. Relying on circulating water for cooling, the circulating water flows into the cooling pool for natural cooling and repeated use.
Physical refining process of rice bran oil extraction production line
1. The key to the physical refining of hydrated degummed rice bran oil is to remove the colloidal substances in the oil as much as possible. The large amount of colloidal substances not only affects the quality of the product, but also easily forms coke under the action of high temperature to form oil dirt and adhere to the surface of the filler, affecting the equipment. Normal operation. Generally, the phosphorus content of hydrated degummed oil must be 30mg/kg.
First, raise the crude oil to 80-85°C, add 0.3% oil and phosphoric acid with a concentration of 85%, and stir rapidly for 30 min. Then add a common salt solution with a temperature of 90-95°C, 8% of oil, and a concentration of 5%. After stirring slowly for 15 minutes, let it settle for 2 hours and let out the oil feet.
2. Washing with water First, heat the degummed oil to 75-78°C, add an alum solution at a temperature of 90-95°C, 8% of oil, and a concentration of 5%, stir slowly for 15 minutes, then leave to settle for 2 hours, and release the oil feet. Then increase the oil temperature to 75-78°C, add tap water at a temperature of 90-95°C and 8% of the oil volume, slowly stir for 15 minutes, then leave to settle for 2 hours, and release the oil feet for use.
3. Drying Before dry degumming, the water content of hydrated degummed oil must be reduced to below 0.5%. The hydration degumming oil drying is carried out in a continuous filler dehydration dehydrator. The drying vacuum is -0.09Mpa and the oil inlet temperature is 105-110°C.
4. The dry degumming dry oil is heated to about 85°C, the edible phosphoric acid with a concentration of 85% and the amount of 0.1% of the oil weight are added by a quantitative pump, and the blade mixer is quickly stirred and mixed with the reaction, and then enters the leaf filter . The dephosphorized waste clay is used to filter and remove residual phospholipids and metal ions and other impurities to obtain dry degummed oil. Generally, the phosphorus content of oil degummed by dry method is 10mg/kg.
5. Decolorization 70% of the dry degummed oil is heated to 110°C and enters the decolorization tower for decolorization. After 30% of the oil enters the oil-soil mixer and mixes with the added clay, it is sucked into the decolorization tower by vacuum to decolorize. The decolorizing tower has a double-layer structure and is stirred by steam. The vacuum degree of the decolorization tower is -0.09Mpa, the decolorization time of the oil in the decolorization tower is 30min, and the addition amount of white clay is 2%. If the decolorization effect is not good, you can add a little activated carbon to use.
6. Filtration The operating pressure of the blade filter is 0.2-0.3Mpa, and the decolorized clear oil enters the vacuum decolorized oil temporary storage tank through the bag filter. Generally, the phosphorus content of the decolorized oil is 5mg/kg, and the color is Y35 and R6. If the phosphorus content exceeds the standard, the reason must be identified before proceeding to the next procedure.
  7. The dewaxing and decolorizing oil exchanges heat with the freezing liquid through the plate heat exchanger. After the oil temperature drops to 22-25°C, it is pumped into the stainless steel crystallization tank. Under the action of stirring, the cooling liquid in the coil is used to slowly cool the temperature to 18 Crystals formed at . The crystallization time is about 12h. Press the crystal oil into the crystal growth tank, and filter the crystal growth at a constant temperature of 18  for 12h to obtain dewaxed oil.
8. Deodorization The deodorization tower is a structured packing tower. The oil flows down from the top of the packing surface under the force of gravity, and fully contacts the saturated steam injected from the bottom to achieve the purpose of stripping and deodorization. The oil flow time in the tower is about 15-20min, the deodorization temperature is 230, the direct steam consumption is about 1% of the oil weight, and the vacuum absolute pressure is 150Pa. The deodorized oil drawn from the bottom of the tower is cooled to below 40°C through the oil-oil heat exchanger and finally the condenser. Generally, the deodorized oleic acid value is 0.2mgKOH/g, the color is Y20, R2 is about.
9. Deacidification The deodorized oil is heated to 250-260°C through the oil-oil heat exchanger and finally the heater to enter the deacidification tower for deacidification. The deacidification tower is a structured packing tower. The oil flows downward on the surface of the packing from the top under the action of gravity, and fully contacts the saturated steam injected from the bottom to achieve the purpose of stripping and deacidification. The oil flow time in the tower is 5min, the direct steam consumption is 2% of the oil weight, and the vacuum absolute pressure is 150Pa. The deacidified oil flows into the thermal decolorizer under the action of gravity.
10. Heat-sensitive decolorization Under high-temperature and high-vacuum conditions, chlorophyll, carotenoid and other heat-sensitive pigments in deacidified oil are decomposed and removed. The delay decolorizer is a layered plate tower, and the interior is divided into 3-4 layers, and the oil flows in sequence in the interior. Delayed decolorization temperature is 240-245, vacuum absolute pressure 200Pa, time is about 60min. The oil overflows to the heat exchanger under the action of gravity.
 
The mixed fatty acids extracted by deacidification and deodorization are collected by the structure packing trapping tower and then flowed to the fatty acid circulation tank, where the mixed fatty acids are cooled to 60-70°C. The cooled mixed fatty acid is pumped into the distributor at the top of the trapping tower by a fatty acid circulation pump. Fatty acids flow from top to bottom on the surface of the filler, and contact with the high-temperature mixed fatty acid vapor flowing at high speed from bottom to top to complete the heat exchange, so that the mixed fatty acid vapor becomes liquid and is trapped. Generally, the acid value of the mixed fatty acid is between 150-190 mgKOH/g.
11. Degreasing The filtered dewaxed oil is pumped into a stainless steel degreasing tank, and under the action of slow stirring with a scraper device, the temperature of the jacket cooling liquid is used to slowly lower the temperature to 3°C. At a constant temperature of 3°C, the cultured crystals were filtered for 6 hours to obtain defatted rice bran oil.
Project indicators Project indicators
Color (133.4 slot) Y20 R1.8 Smoke point (°C) 215
Moisture and volatile matter 0.02 Freezing test (05.5H) Clear/transparent
Acid value mgKOH/g 0.15 Peroxide valuemmol/kg 4
https://www.huawei-mart.com/products/oil-machine/oil-extraction-machine/122.html
 
 

Inquiry:

Your name:
Your tel:
*Your email:
*Your inquiry: