Equipment and method using fermentation dross to produce high activity high nutrition forage

Abstract

The invention discloses equipment using fermentation dross to produce high activity high nutrition forage; the equipment comprises a box body; an inner side of the top of the box body is provided with an air window, an atomizer mechanism, and ultraviolet lamp tubes; an outer side of the top of the box body is provided with a water container and a mixing chamber; the upper portion of the mixing chamber is provided with a cooling zone; the lower portion of the mixing chamber is provided with a blender and a connected fermentation bed mechanism arranged in sequence from top to bottom, wherein the fermentation bed mechanism is arranged in the box body; the bottom of the box body is provided with a ventilation input pipe and electric heaters; the ventilation input pipe is connected in sequence with an air filter and a blower / air cooler; a side face of the box body is provided with a discharge window, another side face of the box body is provided with an access door and an ozone generator, and a temperature humidity control module is arranged in the box body. The invention also discloses a method using fermentation dross to produce high activity high nutrition forage; the method can realize full fermentation, is high in fiber degraded rate, large in protein raising rate, high in active substance content, and less in energy loss; inner environment conditions of the equipment are easy to control.

Description

technical field [0001] The invention belongs to the technical field of feed preparation, and in particular relates to equipment for producing high-activity and high-nutrition feed by fermenting dregs, and also relates to a method for producing high-activity and high-nutrition feed by fermenting dregs. Background technique [0002] my country is the largest animal husbandry and aquaculture country in the world. The total output of meat in the country exceeds 80 million tons, the output of poultry eggs reaches 30 million tons, the output of milk products reaches 32.9 million tons, and the annual output of aquatic products reaches 51 million tons; The conversion efficiency is calculated as 5:1 (meat), 3:1 (egg), 1:3 (milk) and 2:1 (aquaculture products), and the annual consumption of concentrated feed in the country is 7980*5+2940*3+3290 / 3+5100*70%*2=570 million tons, which is theoretically equivalent to the fact that my country's grain and oil resources are basically used in aq...

AI Technical Summary

Problems solved by technology

[0006] Existing fermentation has the following problems: 1, the problem of fermented bacteria: the limitation (as lactic acid bacteria acid production is too high, Saccharomyces cerevisiae alcohol production is too high, spore bacterium biological enzyme activity is low, mold fermentation is easy to mix harmful bacteria such as Aspergillus flavus) or the combination ratio between strains is not suitable, etc.; The anti-nutritional factors of dregs also degrade to a certain extent, but the degradation rate of macromolecular substances in dross, especially cellulose, is very low, which is not conducive to digestion by monogastric animals; at the same time, the fermentation temperature is high (above 35°C), and energy loss is large; It is easy to be polluted by miscellaneous bacteria (especially harmful molds and spoilage bacteria), and the feed will rot and deteriorate, causing animal poisoning

If fermented feed is fed fresh, it often occurs that lactic acid bacteria produce too much organic acid, causing an acid-base imbalance in the animal body; or the concentration of alcohol produced by Saccharomyces cerevisiae is high, resulting in alcohol poisoning in animals

If the fermented material is dried to make feed raw materials, a large amount of volatile substances such as low molecular organic acids and alcohols will volatilize with heat during the drying process, resulting in serious loss of nutrients, especially energy.

2. The problem of fermentation process: At present, in the production process of biological fermentation feed, one is to adopt anaerobic fermentation process, that is, to use anaerobic or facultative anaerobic strains such as lactic acid bacteria, spores, and yeasts to put the dross in a sealed container Fermentation; Compared with aerobic fermentation, the biological reaction is slow, the efficiency is low, and the effect of fermentation is poor

The second is to use aerobic bacteria such as mold to place the dregs in an open fermentation bed or fermentation tank for aerated fermentation; the fermentation efficiency can be greatly improved, but the conditions are difficult to control, easy to be contaminated by bacteria, and the effect is unstable

The third is to use aerobic bacteria for short-term aerobic fermentation, and then use anaerobic bacteria for secondary anaerobic fermentation; but due to the complicated process, it is rarely used in production

3. Problems with fermentation equipment: Dross fermentation is solid fermentation. In addition to traditional fermentation tanks and fermentation tanks, existing solid fermentation equipment has shallow plate fermentation reactors (low mass and heat transfer rates, resulting in high pollution risks and tray utilization. Low disadvantages), fluidized bed fermentation reactor (low reactor volume ratio), drum fermentation reactor (material agglomeration and sticky wall, low reactor volume ratio), disc fermentation reactor (cannot Aseptic operation), stirring fermentation reactor (only suitable for small-scale fermentation), pressure pulsation solid-state fermentation reactor (high equipment requirements, difficult material preparation, etc.); there are also reports of box-type solid material fermentation equipment (application number: 200420026272.0 ), the equipment is designed as a ladder conveyor belt, which occupies a large and long area and has poor applicability

So far, no relevant industrial-scale solid-state fermentation reactor products have been seen. Except for the production of strains in drum-type or stirred fermenters for feed fermentation, most of the commercial production adopts fermentation tanks (grooves) and fermenters for fermentation. Stirring or not, the fermentation material is not sterilized, the fermentation process is difficult to control, easy to be contaminated with bacteria, and the product quality is unstable; fermentation equipment affects the biological fermentation process and effect, which is the bottleneck restricting the development of solid fermentation industry

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