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Groundnut Oil Processing Machine
What our machine can produce?
We have pressing machine, solvent extraction machine, and refinery machine, our press/expeller can get cold pressed oil or hot pressed oil from groundnut, sunflower seeds, corn germ, cotton seeds, soy bean, rapeseeds, rice bran and other oil crops; our solvent extraction line can extract groundnut oil from groundnut cakes by solvent(leaching); Our refining machine can help you get refined groundnut oil(decoloring oil, degumming oil, deacid oil), 1st to 4st grade groundnut oil as your requirements.
The biodiesel machine can produce International standard biodiesel, lLD EN14214 standard, ASTM 6751-03 standard, DIN V 51606 standard.
What's our factory's ability, what kind of our machine can do?
We can produce all kinds of cooking oil machinery, which includes palm oil production machine, groundnut oil production line, soybean oil, cotton oil, sunflwoer oil, corn oil, rice bran oil and other kinds of edible oil production line.
The whole production line includes oil press machine, oil extraction(solvent) machine, oil refining equipment, palm oil fractionation equipment, sunflower oil dewaxing plant, decoloring process machine, deodorization process machine and other machine.
Biodiesel equipment/machines/plant can be manufactured also.
Why choose LD?
We have more than 20 years experience on oil machinery, LD factory has installed hundreds of plant all over the world, our responsible engineers, advanced tech and experienced installation worker will make your choice better and more comfortable.
If you have interest or need more info, please feel free to contact me.
1. Introduction
At present, soybean/sunflower/rice bran/corn germ/groundnut/rapeseed/canola/cottonseed cooking oil production process have two kind of processing method: pressing and leaching(extraction). Pressing method is by physical pressure and get oil directly from the oil seeds. The whole process does not involve any chemical additives, to ensure product safety, health, pollution-free. The expeller method is divided into cold pressing and hot pressing. The difference of cold pressing and hot pressing is whether use high-temperature process or not. Hot pressing using a high temperature, can improve the oil yield, but destroy nutrients; cold-pressed not to use high temperature, the oil is low, but the complete nutritional ingredients.
1..1 Here have some example of hot pressing and cold pressing method.
1.1.1 Process and methods of seeds pressing.
There are two ways of pressing of special seeds: cold press and hot press.
(1) seeds cold press process: oil seeds--Filtering---Press(suitable moisture)
(2) Hot press process: Soybean/sunflower/rice bran/peanut ---Cleaning---Prepressing---Crude oil---Filter---Twice pressing---Crude oil after twice pressing---Filter
(3) Introduction of process: Will screen soybean and cleaning soybean first, then crushing soybean and add 7-8% of water to soften the seeds, send soybean to cooker, steam until about 115°C, then will press seeds.
1.1.2 Process and method of rapeseed press:
The rapeseed have two ways of pressing, cold press and hot press. To improve the oil yield and oil quality, generally the hot press is used.
(1) Cold press:oil seeds---Screening---Squeezing---Steaming----Pressing, First, Screening the rapeseed and check the moisture content of rapeseed, if the rapeseed too dry, we need to add 2.5-3% water, later put the seeds into the expeller.
(2) Hot press: Rapeseed/vegetable seeds---Screening---Squeezing---Steaming----Pressing, Filter the rapeseed and remove the residue, and then enter the flaking machine for seeds flaking. After flaking, will go into the cooker for steaming and roasting, during steaming add 2-3% water, will start milling after the seeds become brown and the temperature is 110-120°C.
1.1.3 The process and method of peanut kernel pressing.
Hot press and cold press is suitable for peanut kernel, generally we use hot press. Hot pressing, the first crushing or flaking the peanut kernel, then placed in the steamer for 1.5-2 hours. When the cake’s temperature arrives 120°C and water content is 3%, will start normal squeezing.
Peanut----Cleaning---First milling---filter----Press two times---Crude oil----Refinery---Press third times---Crude oil after pressing----Filter----Cake after pressing.
1.1.4 Character of seeds press/mill/expeller machine
|
ZY-24 stLDe |
202-3stLDe |
200A-3stLDe |
Output capacity (t/d) |
50-55(seed) |
45-50 |
9-12 |
Residual oil % |
11-13(cakes) |
11-13 |
6-7 |
Motor(kw) |
30,7.5,22 |
30 |
18.5 |
WeigLD (kg) |
7500 |
6500 |
5000 |
Dimension(mm) |
3060*1970*4500 |
2950*1950*3270 |
2850*1850*3270 |
2. The difference of pressing and extraction(leaching):
Squeezing method due to the yield is low, so the raw material for squeezing must be seeds of high oil content, and itself is probably oil crops; Due only to squeeze at the same time, the residual oil in the cake is high, so the modern enterprise in order to save resources, the pursuit of efficiency of cases will be to squeeze the oil cake with leaching rule of oil again
3. Introduction of solvent extraction line
The whole extraction workshop is selected on the base of safety, reliable, enerLD-saving, less fault, easy maintenance, and long using life, adopting world advanced technoloLD and equipment to achieve the LD process effect.
Process flow:
The material(for pretreatment) is sent to the extractor by the airtigLD packing auger. The mateiral will be sprayed for extraction by the solvent(Hexance) or mixed oil after they fall into the extractor. The wet dreg(after dripping), falling into the conveyor and be sent to the evapo-separated machine. After steaming, baking and desolventizing, the dreg will be sent to the dreg storehouse. Mixed oil after extraction enters into the first and second long tube evaporator for seperating the steam and solvent, and then flow into the stripping tower for desorption the remaining solvent of crude oil. The extracted oil from the last process will be sent into the crude oil tank for refining plant. The solvent vapors from the extractor, evapo-separated machine, evaporator, stripper tower will be recycled in the cooling system. The solvent after cooling will be collected in the fresh solvent tank for reusing in the process.
Main equipment:
Rotocel extractor(loop type extractor), evapo-separated machine, Long tube evaporator, stripper tower, condenser, absorber, conveyor, sealing auger and so on.
4. Crude cooking oil refining process
5. Raw material
Raw material |
Oil content |
| Peanut | 44-55% |
| Camellia | 58-60% |
| Castor seed | 50-70% |
| Soybean | 18-21% |
| Cotton seed | 33-40% |
| Rapeseed | 33-40% |
| Sesame seed | 45-50% |
| Sunflower seed | 40-50% |
| Rice bran | 18-20% |
| Safflower seed | 29-45% |
| Corn embryo/germ | 30-40% |
| Walnut | 40-65% |
| Flaxseed/Linseed | 29-44% |
| Palm seed | 50-55% |
| Coconut | 35-45% |
Crispy Rice Food Processing Line
