Livestock and poultry manure fermentation process

Abstract

The invention discloses a livestock and poultry manure fermentation process which comprises the following steps: step 1, conveying livestock and poultry manure into a stirrer, stirring, adding auxiliary materials and fermentation strains, uniformly stirring to form a mixture, controlling the moisture content of the mixture to be 45-55%, and heating to raise the temperature to 40-50 DEG C; step 2,conveying the mixture into a fermentation tower to be subjected to aerobic fermentation for 70-75 h, stirring the mixture while fermentation by a stirring device arranged in the fermentation tower, wherein a large amount of moisture in the mixture is rapidly evaporated during stirring fermentation, and when the moisture content of the mixture reaches 20-30%, the mixture can be bagged; the bagged mixture is conveyed to an bio-organic fertilizer bin by a conveyor for storage. The process has the advantages that the fermentation time is shortened, the production efficiency of the bio-organic fertilizer is improved, and meanwhile, the production cost of the bio-organic fertilizer is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of fermentation technology, more specifically to the technical field of fermentation technology for producing bio-organic fertilizer by using livestock and poultry manure. Background technique [0002] Bio-organic fertilizer is an organic fertilizer made from agricultural and animal husbandry waste or organic waste fermented and processed by beneficial microorganisms. It contains a large amount of organic matter, a large number of beneficial microorganisms and microbial metabolites, and has the functions of microbial inoculants and organic fertilizers. . In recent years, microbial organic fertilizers have attracted much attention due to their great advantages in promoting crop growth, improving crop resistance to disease and stress, and increasing soil fertility. Livestock and poultry manure is a common raw material for the production of bio-organic fertilizers. In the traditional production process of usin...

AI Technical Summary

Problems solved by technology

Livestock and poultry manure is a common raw material for the production of bio-organic fertilizers. In the traditional production process of using livestock and poultry manure to produce bio-organic fertilizers, the livestock and poultry manure is usually directly transported to the fermentation tower for fermentation and decomposing. However, with this fermentation method, After livestock and poultry manure enters the fermentation tower, it is difficult to reach the temperature suitable for the growth and fermentation of the bacteria. It can only rely on the heat generated by the bacteria itself during the fermentation process to slowly increase the temperature of the stockpile to achieve the optimum temperature for the bacteria. The growth temperature, and in this way, not only affects the fermentation speed, but also the uneven temperature distribution in the stockpile affects the fermentation effect

In addition, usually after the livestock and poultry manure in the fermentation tower is fermented, it needs to be dried, and the drying step takes a long time, which not only seriously reduces the production efficiency of bio-organic fertilizer, but also increases the investment cost of the drying equipment, Drying equipment consumes a lot of energy to produce heat, which greatly increases the production cost of bio-organic fertilizers