Fish oil continuous refining method and centrifugal equipment used in fish oil continuous refining method

Abstract

The invention belongs to the technical field of aquatic feed, and particularly relates to a fish oil continuous refining method and centrifugal equipment used in the method. The invention provides a fish oil continuous refining method and centrifugal equipment used by the same, which can achieve the purposes of thorough soapstock alkali refining separation and removal and low possibility of excessive alkali liquor by using a centrifugal machine with a measurable centrifugal discharge amount and adding an alkali liquor in batches. The method has the advantages that the amount of centrifugal discharging nigre is convenient to monitor, the adding amount of alkali liquor can be guided, the alkali liquor is added in batches and is not prone to being excessive, the nigre removal rate can be increased, the nigre amount display structure of the centrifugal discharging amount measurable centrifuge is reasonable and effective, observation and display are convenient and rapid to use, and multiplebatches of fish oil can be continuously centrifuged; niger centrifugation production amount is recorded in times, and the centrifugal machine has the advantages of high efficiency and stability in overall use.

Description

technical field [0001] The invention belongs to the technical field of aquatic feed, and in particular relates to a fish oil continuous refining method and centrifugal equipment used therein. Background technique [0002] In the existing fish oil continuous refining method, the steps mainly include cleaning and filtering, alkali refining to remove soap, filtering and decolorizing, and winterizing and filtering in sequence, and the liquid fish oil finally obtained is refined fish oil for producing aquatic feed. [0003] But on the other hand, in the existing refining method, there is at least the following problem in the step of alkali smelting and soapstock removal: the existing centrifugal equipment cannot observe the amount of soapstock obtained by centrifugation in real time, so it cannot be used according to the amount of centrifugal soapstock. To guide the amount of lye added, it may eventually lead to insufficient addition of lye, insufficient removal of soapstock, or ...

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Problems solved by technology

[0003] But on the other hand, in the existing refining method, there is at least the following problem in the step of alkali smelting and soapstock removal: the existing centrifugal equipment cannot observe the amount of soapstock obtained by centrifugation in real time, so it cannot be used according to the amount of centrifugal soapstock. To guide the amount of lye added, it may eventually lead to insufficient addition of lye, insufficient removal of soapstock, or excessive addition of lye, and the lye itself becomes harmful impurities.

[0008] However, the centrifuge in this utility model patent has the problem that the amount of material separated by centrifugation is not convenient for real-time monitoring

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