Method for cleaning and utilizing cow dung of cowshed

Abstract

The invention discloses a method for cleaning and utilizing cow dung of a cowshed. The method comprises the following steps: first, cleaning and centralizing the cow dung in the cowshed by adopting mechanical equipment, spraying water and cleaning the cow dung so that liquid cow dung forms suspension with the solid content of about 10 percent, and discharging the liquid cow dung out of the cowshed through a drainage trough; then, performing solid-liquid separation on the cleaned liquid cow dung by using a filter or a presser, drying the solid phase to be used as a fuel and the like, and using the liquid component as a high-efficiency bio-organic fertilizer for irrigating a farmland, so that the cow dung is comprehensively utilized. According to the method for cleaning and utilizing the cow dung of the cowshed disclosed by the invention, an additive is added into the liquid cow dung so that the solid phase in the liquid cow dung achieves an effect of aggregating and increasing particles, and the aim of improving filtering performance is improved; the method has a simple process and is high in efficiency and low in cost.

Description

technical field [0001] The invention belongs to the field of animal husbandry, and in particular relates to a method for cleaning and utilizing cow dung in a cowshed. Background technique [0002] In order to improve the efficiency of production and management in large-scale cattle farms, the cowsheds are equipped with automatic water spraying and cleaning cow dung devices. First, mechanical devices are used to clean and concentrate the cow dung, and then water is sprayed to form cow dung with a solid content of about 10%. The manure is flushed out of the cowshed through the drainage trough. Due to the large amount of flushing water and thin manure, the existence of a large amount of manure has hidden dangers in terms of environmental protection, sanitation and comprehensive utilization. Therefore, the clear liquid after filtering the manure is generally used as organic fertilizer for irrigation, and the manure residue is used as fuel after drying. and other purposes to ach...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for cleaning and utilizing cow dung in a cowshed, aiming to solve the problem of complex components of cow dung, high viscosity, fine particles, and difficult aggregation, so that general filter machines and filter cloths can filter cow dung There are great difficulties and low production efficiency

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