Fish oil continuous decolorization process

Abstract

The invention belongs to the technical field of aquatic feed, and particularly relates to a fish oil continuous decolorization process. According to the process disclosed by the invention, the effectsof high adsorption and removal efficiency of the pigment in the fish oil and simple and convenient decoloration operation are achieved through vacuum heating and stirring decoloration; the structureof continuous decolorizing equipment adopted in the process comprises a decolorizing tower main body, side stand columns, a decolorizing tower preparation barrel, a stirring motor, a discharging pipe,a three-way valve, a vacuumizing pump, a fixing frame unit and a pressing plate unit, and has the advantages that the overall efficiency of continuous decolorizing is high, the interval time betweendecolorized fish oil in each batch is short, and the stirring motor does not shake left and right easily after long-time operation; and the vacuumizing pump does not vibrate and fall off after long-time operation, the vacuumizing pump is simple and convenient to disassemble and assemble, and the continuous decolorizing tower equipment has the advantages of high overall structural stability and stability in long-time operation.

Description

technical field [0001] The invention belongs to the technical field of aquatic feed, and in particular relates to a continuous decolorization process of fish oil. Background technique [0002] Hair fish oil refers to a fish oil mixture that not only contains body oil, liver oil and brain oil required for the production of aquafeed, but also contains water, impurities, colloids and fish body protein, before it becomes fish oil for aquafeed , needs to go through the following steps: washing, desoaping, decolorizing and winterizing. [0003] Among them, the decolorization process, the existing method is: put the desoaped fish oil into the decolorization tower, then add the decolorization clay, then mix evenly and keep it for a period of time, and finally filter and remove the waste clay that has adsorbed the pigment, and the whole decolorization process is completed up. But there are at least the following problems in this existing way: first, the decolorization process is op...

AI Technical Summary

Problems solved by technology

But there are at least the following problems in this existing way: first, the decolorization process is operated in batches, and when the fish oil that has completed the pigment adsorption in the last batch has not been fully pumped into the filter, it is not possible to add new oil to the decolorization tower. The fish oil to be decolorized, so the efficiency is greatly reduced; second, the existing simple stirring and mixing decolorization operation, the degree of pigment adsorption is not high, and the final decolorization rate is relatively low

[0008] However, the decolorization reactor in this utility model patent has the problem of low overall decolorization efficiency

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