Low temperature drying technique of ebullience hatch type fishmeal

Abstract

The invention relates to a low-temperature drying process for boiling incubation type fishmeal. The process is characterized in that the water content of impurity-containing wet fishmeal is less than or equal to 45 percent; impurities are removed through sifting; the fishmeal continuously enters a boiling incubation type low-temperature drier, is dried and is discharged through a centrifugal unloader to obtain fishmeal with the water content of less than 10 percent, wherein the boiling incubation type low-temperature drier consists of vertical round tubes in thickness alternation and a heat exchanger; a thin tube of the vertical round tubes in thickness alternation is a feed lifting tube; a thick tube is a boiling tube; an initial feed lifting tube is connected with a feeding device; and a bottom feed lifting tube is connected with the centrifugal unloader. The process adopts low-temperature rapid short-time drying, can effectively protect amino acid in the fishmeal is not destroyed to ensure that the loss rate of pure protein in the fishmeal is reduced to reach or exceed the standard of coequal imported high-quality fishmeal. The system device can carry out continuous automatic production in a closed negative pressure state, has high efficiency and low energy consumption, and does not pollute environment.

Description

technical field [0001] The invention relates to a low-temperature drying process of fish meal. Background technique [0002] At present, the cleaning and drying process in my country's fishmeal processing industry has not taken effective cleaning, resulting in excessive iron, sand and organic plastic impurities in domestic fishmeal, seriously affecting the quality of fishmeal products. [0003] In the current drying process of fishmeal, due to the long-time and high-temperature drying, the amino acids of domestic fishmeal are largely destroyed, and the loss of true protein is serious. At present, the loss rate of true protein in domestic fishmeal is as high as 15-30%, making fishmeal The internal quality of the product is low, and the cost performance is reduced. [0004] Due to the current domestic fishmeal processing, the drying of fishmeal is all combined with horizontal drying tanks. The fishmeal is dried by high-temperature steam for a long time, resulting in a large a...

AI Technical Summary

Problems solved by technology

[0002] At present, the cleaning and drying process in my country's fishmeal processing industry has not taken effective cleaning, resulting in excessive iron impurities, sand and organic plastic impurities in domestic fishmeal, seriously affecting the quality of fishmeal products

[0003] In the current drying process of fishmeal, due to the long-time and high-temperature drying, the amino acids of domestic fishmeal are largely destroyed, and the loss of true protein is serious. At present, the loss rate of true protein in domestic fishmeal is as high as 15-30%, making fishmeal The internal quality is low, and the cost performance is reduced

[0004] Due to the current domestic fishmeal processing, the drying of fishmeal is all combined with horizontal drying tanks. The fishmeal is dried by high-temperature steam for a long time, resulting in a lot of steam waste and excessive heat energy consumption, resulting in higher production costs.

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