Linseed oil extraction machine
Linseed oil extraction machine is a professional production line equipment for producing linseed oil. The production process is generally divided into pressing method and extraction method.
The squeezing method is also called "physical squeezing method", which is to squeeze out the oil in the oil by external force, and other chemical solvents are not applicable, so as to avoid the residue of organic solvents in the oil.
The pressing production process retains the active ingredients in flaxseed to the greatest extent - polyunsaturated fatty acids, protein, dietary fiber, vitamins, trace elements and other nutrients that are beneficial to the human body, and are more suitable for special supplements for the human body health care. The pressing method can choose hot pressing and cold pressing, and the linseed oil extracted by cold pressing has higher nutritional content.
Cold pressing process of linseed oil extraction machine
Harvesting and screening of linseed → linseed → cleaning impurities → shelling → crushing → low-temperature pressing → pressing linseed crude oil → coarse filtration → fine filtration → low-temperature crystallization and growth → low-temperature filtration → cold-pressed linseed oil
1. Avoid harmful substances caused by oil denaturation, sugar degradation and protein denaturation during high temperature pressing.
2. It avoids the darkening of linseed oil caused by high temperature and the phenomenon of burnt smell.
3. After multiple filtrations, it avoids direct contact between chemical substances and active ingredients and secondary pollution caused by degumming, deacidification, and activated clay decolorization processes in the hot pressing process.
4. Avoid high-temperature distillation and deodorization, effectively prevent the damage of polyunsaturated fatty acid in linseed oil - α-linolenic acid by high temperature, effectively retain natural and complete nutrients, and make it easier for human body to absorb and supplement nutrients.
5. Almost all the nutrients in flaxseed are retained, the taste is refreshing and not greasy, and the content of polyunsaturated fatty acids is rich.
Disadvantages: low oil yield and relatively high production cost.
Hot pressing process scheme of linseed oil extraction machine
The oil content in linseed is relatively high, so the common small-scale oil production process is mostly extraction by pressing. The production process mainly includes screening, roasting, pressing, mixed oil filtration, and crude oil refining. Screening is an indispensable step before oil processing. The specific gravity method can be used to separate the sediment, small stones and other impurities in the oil that will affect the oil yield and the normal operation of the equipment.
The cleaned oil can be sent to the frying machine for steaming and frying to adjust the temperature and water content of the linseed, so that the oil can seep out of the oil easily. When roasting the linseed oil, pay attention to the temperature control, and it can be equipped with automatic temperature control. Control system to avoid burnt oil.
The processed linseed oil can be transported to the oil press to squeeze out the oil. The types of oil presses on the market can be divided into screw presses and hydraulic presses. The oil factory can carry out processing according to the processing capacity. Judging and choosing the right oil press, pay attention to the uniform feeding and control the thickness of the oil cake during pressing.
The mixed oil obtained by pressing contains a small amount of cake residue, etc., which can be filtered to separate solid impurities in the oil. The crude oil obtained after filtration also contains peptizing impurities, unsaturated fatty acids, pigments and other impurities that are not conducive to the human body. It needs to go through a series of treatments such as degumming, deacidification, decolorization, deodorization, and dewaxing in a refining machine before it can be qualified. oil standard.
Extraction process scheme of linseed oil extraction machine
The linseed oil produced by the leaching process is also called leaching linseed oil, which is to extract the oil material with organic solvents (such as gasoline, ethanol, etc.). The leaching method is to use solvent oil (No. , after soaking in a solvent for extraction, the linseed oil is extracted as an oil-making process. The "oil" extracted initially is a mixture of organic solvents and oils, etc. It is not edible and must go through a series of refining processes (chemical treatments such as dewaxing, degumming, dehydration, deodorization, deacidification, and decolorization) before it can be eaten. The extraction process can extract almost all the oil in the oil, and the economic benefit is very high. It is the most popular processing method in the modern oil industry.
Comparison of the advantages and disadvantages of the oil making method of the linseed oil machine;
Harvesting and screening of linseed→linseed→cleaning impurities→hulling→crushing→pressing→pressing linseed crude oil→coarse filtration→fine filtration→low temperature crystallization and growth→low temperature filtration→linseed oil
Advantages of the leaching method: the oil yield is very high, the cost is low, and the economic benefit is higher. The most popular processing method in the modern oil industry.
Disadvantages: The investment in machinery and equipment is relatively large, and the solvent is dangerous during the extraction process.
Introduction of the oil-making process and equipment configuration of the linseed oil extraction machine;
The extraction process of the linseed oil machine first needs to pretreat the raw materials. Raw material pretreatment is a series of processes such as cleaning, crushing, rolling, steaming and frying the linseed. Its purpose is to destroy the cells of the oil plant, change the shape of the oil plant, control the moisture of the oil plant so that it can better extract the oil, and increase the oil yield of the oil. The pretreatment of raw materials is the general name of a series of processes that clean and remove oil materials and process them into materials with certain structural properties to meet the requirements of different oil-making processes.
Commonly used pretreatment equipment includes: vibrating cleaning screen, shelling machine, rolling mill, steamer, crusher, etc.
Linseed oil extraction machine, the pretreated material is then sent to the extraction workshop. No. 6 solvent or n-hexane can be used for leaching, combined with negative pressure evaporation technology, to reduce the evaporation temperature of the mixed oil, reduce high-temperature oxidation, and retain as much nutrient content of the leached linseed oil as possible. The leaching machine fully embodies the advantages of normal temperature leaching and low temperature desolventization. When extracting linseed oil, it does not destroy the active substances and vegetable proteins in linseed oil.
First, crush and dry the linseed cake, then transport it to the leaching workshop, pass through the conveyor and the sealing auger and enter the extractor, fully contact with the solvent in the extractor to extract the linseed oil, and obtain the mixed oil, and then filter and evaporate , stripping, and condensation to recover the solvent to obtain leached linseed crude oil. In this process, the mixed oil adopts negative pressure evaporation technology, and the first steaming, second steaming and stripping are all carried out in vacuum, and the temperature of additional issuance is low, which greatly reduces oxidation; The leached solvent gas is recovered through the condenser
The equipment components in the extraction workshop include; scraper conveyor, extractor, sealing auger, and steamer. Evaporators, strippers, condensers, solvent pumps. Cooling towers and other components.
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E-mail:oilmachinedy123@gmail.com
WhatsApp: 008613633717168
