Device and method for solid-liquid separation of dry cleaning faeces of livestock

Abstract

The invention relates to a device and method for solid-liquid separation of dry cleaning faeces of livestock. The device mainly comprises a shell. A breaking unit, a feeding unit and a solid-liquid separation unit are sequentially arranged in the shell from top to bottom. The breaking unit comprises a main shaft. The main shaft is fixedly connected with a plurality of rotary teeth used for stirring and breaking mucosa on the surface of the faeces. The solid-liquid separation unit comprises a first drive motor fixedly connected to the shell, and the first drive motor drives a solid-liquid separation packing auger to rotate through a first speed reducer. After the faeces enters the breaking unit, the faeces passes through the feeding unit to be fed to the solid-liquid separation unit for solid-liquid separation, and after separation, liquid flows out of a water outlet end, and solids flow out of a discharging end. According to the device, a brand-new structure is designed, and under the condition that a small amount of water is added for the first time, and a small amount of waste water is utilized during subsequent circulation, efficient solid-liquid separation of the dry cleaning faeces of the livestock can be achieved.

Description

technical field [0001] The invention relates to the related technical field of agricultural equipment, in particular to a solid-liquid separation device and method for dry and cleaned manure of livestock and poultry. Background technique [0002] With the large-scale and rapid development of the breeding industry, the substantial increase in the number of livestock and poultry will produce a large amount of livestock and poultry manure. At present, the aquaculture industry generally adopts the method of flushing (soaking) manure with water to clean up the excrement of livestock and poultry, which consumes a large amount of water resources and results in the discharge of a large amount of excrement and sewage of livestock and poultry. Livestock and poultry manure produced by the breeding industry has become an important source of environmental pollution. [0003] Harmless treatment of livestock and poultry manure to realize resource utilization is an effective way to solve t...

AI Technical Summary

Problems solved by technology

High solid moisture content limits the harmless treatment and subsequent reuse of solid output

[0006] At present, most of the existing solid-liquid separation equipment for livestock and poultry manure use submerged pumps to pump in the feed, and dry and clean manure cannot be directly pumped in.

And because the surface layer of dry feces is covered with a layer of mucous membrane, the existing solid-liquid separator does not have a mechanism to destroy the mucous membrane before extrusion, resulting in a very low liquid separation rate in the feces

Therefore, the existing solid-liquid separation equipment for livestock and poultry manure is only suitable for flushing (soaking) manure with a large amount of water until the water content of the manure is as high as 90% or above, resulting in a lot of waste of water resources

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