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Vacuum Pump in Fish Oil Processing

Fish oil production and processing line, in order to solve the existing fish oil production and processing line produced fish oil purity is low, more impurities lead to low quality of fish oil. The application of vacuum pump in fish oil processing is a rotary vane vacuum pump unit, which is composed of a pump as the main pump and a rotary vane pump as the front pump in series. The utility model has the advantages of simple operation, stable operation of the equipment, low failure rate and high economic benefit.


Rotary vane pump is used as the front pump in rotary vane vacuum unit, so it overcomes the shortcoming of low pumping rate under certain pressure when using rotary vane pump, and retains the advantages of Roots pump which can work quickly and has relatively large pumping rate. Because of its compact structure, large pumping speed and small occupied area, it can replace many mechanical vacuum pumps. Therefore, the rotary vane pump unit is widely used in vacuum smelting, power capacitors, transformer vacuum heat treatment, vacuum coating equipment pre-pumping, electric vacuum semiconductors and other industries to remove low oxygen content in closed containers. Gas that is non-explosive, non-corrosive to metals, does not react chemically with pump oil and does not contain particulate dust.

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Why do we need to pay attention to the production and processing of fish oil?


In the process of fish processing, there will be a large amount of waste material, which accounts for about 35-55% of the raw material weight. Fish processing waste material includes fish head, fish bones, fish viscera, fish skin and so on. These wastes contain a large amount of protein, fat and a variety of bioactive substances. At present, most of the fish processing wastes are processed into feed for sale. Most of the fish processing wastes are processed by cooking and pressing method, which produces a large number of oil-water mixtures. If they are not utilized and discharged, it will seriously affect the environment.


Oil is one of the important components of fish. Fish oil has a wide range of applications, such as health food, medicine, feed industry and so on. As a food additive, fish oil is widely used in bread, ice cream, milk, infant milk powder, yogurt and other foods abroad. Governments around the world attach great importance to the development of food rich in eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Therefore, it is necessary to separate and utilize fish oil from oil-water mixture produced in the production process.


However, due to the incomplete separation of oil and water, the purity of fish oil is low, and the quality of fish oil is low due to impurities such as fish bones and skin. Therefore, the production efficiency of existing fish oil production and processing lines needs to be improved urgently.


The application of vacuum pump in fish oil processing belongs to the technical field of food production and processing equipment. It can improve the quality of fish oil, avoid the impurities such as fish bones and skin residing in fish oil, resulting in low purity of fish oil, and improve the efficiency of production and processing. Vacuum units are used to suck air and other non-condensable and non-corrosive gases. They are widely used in various vacuum systems requiring large pumping speed and low and high vacuum. They are preferred for rough and medium vacuum systems. Vacuum unit has the advantages of oil-free, dry and clean; soaking in low temperature field; large pumping speed, which can shorten the exhaust time; excellent corrosion resistance; low noise, low vibration and so on.


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