Aeration device for soybean meal fermentation

Abstract

The invention provides a ventilating device for bean pulp fermentation. The ventilating device comprises a ventilating rod and a temperature detector, wherein the ventilating rod is inserted in a material, the temperature detector is positioned on the ventilating rod in the material, the ventilating rod is connected with an external gas filling pump through a gas pipe, and the gas pipe is provided with a switch valve. According to the ventilating device provided by the invention, the end part of the ventilating rod is provided with the temperature detector, the gas pipe is provided with the switch valve and a flow meter, the ventilating amount can be adjusted through the valve according to the change situation of the temperature of the fermented material, thus the ventilating quality and the ventilating efficiency can be effectively increased, the quality of a fermented product can be uniform, the performance of the fermented product can be stable, and the digestion and absorption rate of animals on fodder can be effectively increased.

Description

technical field [0001] The invention belongs to the technical field of plant protein fermentation, and in particular relates to an aeration device for soybean meal fermentation. Background technique [0002] Soybean meal is a by-product of soybean oil extraction, because it contains rich protein (43-48%), relatively balanced amino acids, various mineral nutrients, and lysine (2.5-48%) that other plant-based feeds are easily lacking. 2.8%), is widely used in the feed industry. However, during the oil extraction process, the obtained soybean meal is often subjected to high temperature treatment, resulting in serious protein denaturation and poor solubility, which is not conducive to animal digestion and absorption. At the same time, soybean meal also contains many anti-nutritional factors, heat-stable anti-nutritional factors such as phytic acid, oligosaccharides, and glycinin. Therefore, if untreated soybean meal is directly fed by animals, it is very easy to cause diarrhea ...

AI Technical Summary

Problems solved by technology

[0005] (1) Uneven ventilation: The existing soybean meal fermentation process generally has an aerobic fermentation process. Due to the accumulation of solid materials, poor air fluidity, and uneven material size, it is easy to cause uneven ventilation during ventilation, that is, There is too much ventilation in some places, and there is no air in some places, which inevitably increases the ineffective ventilation, and also affects the time and effect of fermentation;

[0006] (2) Aeration cannot be quantified: At present, the air in the aerobic fermentation process cannot be added quantitatively, resulting in unstable quality between different batches of products, and unstable quality of fermented products in different places of the same batch

[0007] (3) The ventilation index is vague: due to the different air demand of materials at different depths, there is no relatively uniform index for the air consumption of materials at different depths during the ventilation process, which brings difficulties to the ventilation work, and the ventilation volume is too large or too small , will affect the quality and yield of fermentation

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