.jpg)
.jpg)
.gif)
.gif)
Vegetable oil extraction machine
Process introduction of vegetable oil extraction machine;
Vegetable oil extraction machine. It mainly introduces the equipment that uses chemical solvents to extract soluble substances from solid oils. It is a machine that uses organic solvents to extract oils from oils. Oil. The extraction of oil can be regarded as solid-liquid extraction, which is a process of separating the relevant components in solid materials by using the properties of solvents with different solubility for different substances
The oil extraction method uses a solvent that can dissolve oil, and through the effects of wetting and penetration, molecular diffusion and convective diffusion, the oil in the raw material is leached out, and then the mixed oil composed of solvent and fat is separated, and the mixed oil The solvent is evaporated and separated to obtain crude oil, and the solvent in the cake must also be evaporated and recovered to obtain the leached meal.
Classification of vegetable oil extraction machines
(1) Divided by production operation mode
1. Intermittent
Batch type refers to the batch operation from the input of oil to the unloading of meal, the input of solvent to the discharge of mixed oil, which is an intermittent operation mode. This is the case for leaching with tank group extractors.
2. Continuous
Compared with the batch type, the input of oil material to the unloading of meal, and the input of solvent to the discharge of mixed oil are all carried out continuously, which is a continuous operation mode. This is the case for leaching with flat rotary, crawler, and ring extractors.
(2) Divided according to the way the solvent contacts the oil
1. Immersion
The immersion type is also called the immersion type, that is, the oil is completely immersed in the solvent during the leaching process. Tank group extractor leaching belongs to this type.
2. Spray type
The spray type means that during the leaching process, the solvent is continuously sprayed on the surface layer of the material embryo by the nozzle through the pump, and then penetrates through the entire material layer to be filtered out to form a mixed oil. The crawler extractor belongs to this type.
3. Hybrid
The mixed type refers to the combination of immersion and spraying, which not only sprays the oil continuously, but also keeps the oil submerged in the mixed oil. This type of leaching equipment includes flat-rotating leaching devices, ring leaching devices, and the like.
(3) Divided by production process
1. Direct leaching
Direct leaching, also known as primary leaching, refers to the process in which the oil is directly leached into the leaching device after pretreatment to obtain oil. The direct leaching process is generally suitable for the processing of oils with low oil content, such as soybeans and rice bran.
2. Pre-pressed extraction
Pre-pressing and leaching refers to a process in which after the oil has been pretreated, a part of the oil is squeezed out with an oil press, and then the remaining part of the oil in the pressed cake is taken out by leaching. This process is suitable for oil processing with high oil content, such as rapeseed, peanut, sunflower seed, etc.
After shelling, cleaning and screening, raw materials are sent to leaching equipment for leaching process, and then refined and further processed to become finished vegetable oil. The resulting cakes and the like are used for feed
processing.
processing.
Process introduction of vegetable oil extraction machine;
Cleaning: This is the initial stage of oil processing, and vibrating screens are often used as cleaning tools. The cleaning equipment used in the oil production process is basically the same.
Classification: Classification is mainly used to screen moldy particles and broken particles in oil, and the screened particles can be used as secondary oil processing.
Drying: Dry the remaining moisture inside the oil during the drying process. Control the water content at 3%~5%, which is beneficial for later leaching and oil extraction.
Crushing: Crushing is to change the structure of oil through physical methods, from macromolecular particles to small molecules, which can fully contact the solvent during solvent leaching.
Steaming and frying: Steaming and frying is an indispensable process in the process of making oil. Steaming and frying can enhance the aroma of oil.
Oil extraction: The types of extraction equipment used in this link are also different according to the size of the production volume
Extraction: Horizontal rotation leaching equipment and drag chain leaching equipment are mostly used.
After the above process, the oil has become mixed crude oil. After precipitation, it is sent to the refining equipment by the leaf filter for further refining and further processing. The cake is subjected to secondary leaching to extract oil or recover solvent. The refining process of crude oil produced by leaching equipment mainly includes five processes of degumming, deacidification, decolorization, deodorization and dewaxing.
Where to buy leaching equipment, Zhengzhou Dayang Oil Equipment Co., Ltd. is your good choice. There are many types, complete models, hard quality, excellent service, and low price. We warmly welcome customers to come to Zhongrui manufacturers to inspect and purchase, and get free grain and oil projects. Customized solutions.
https://www.oilmachinedy.com/oil-extraction
