Process for pretreating manure in farm

Abstract

The invention relates to the field of environmental protection, in particular to a process for pretreating manure in a farm. In the process, the manure in the farm is pretreated by a pretreatment system arranged in a breeding house. The pretreatment system comprises a manure collecting region, a waste gas exhausting region, a bubble liquid discharging region and a bubble region, wherein the manure collecting region comprises a slatted floor and a cement floor connected with the slatted floor; the slatted floor and the cement floor are paved slantways respectively; the bubble region comprises a bubble pool positioned under the whole slatted floor; the bubble liquid discharging region comprises a funnel-shaped pool bottom and a discharge pipeline; the funnel-shaped pool bottom is arranged at the bottom of the bubble pool; the discharge pipeline is arranged below the funnel-shaped pool bottom and is provided with a controllable valve; the waste gas exhausting region comprises an exhausting branched pipeline, an exhausting main pipeline and a drawing fan; the exhausting branched pipeline is arranged on the wall of the bubble pool; the exhausting main pipeline is communicated with the exhausting branched pipeline; and the drawing fan is connected with the exhausting main pipeline and positioned outside the breeding house. The pretreatment system can reduce secondary pollution caused by bubble fermentation waste gas and can improve automatic management level of the farm.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a high-efficiency, energy-saving and automatic farm manure pretreatment process. Background technique [0002] Blistering manure is one of the methods of manure pretreatment. figure 1 Shown is the process flow chart of the existing blister manure. The process flow is to inject a certain amount of water into the defecation ditch in the pig house, and discharge the excrement, urine, flushing and feeding management water into the ditch under the floor of the gap. After storing for a period of time (usually 1 to 2 months), open the gate of the outlet to discharge the feces in the ditch; the blister liquid flows into the main feces ditch along the dung ditch, enters the underground dung storage tank or is pumped to the ground Septic tank. [0003] In order to make the dung water etc. enter the underground dung ditch smoothly, what adopt at present is to lay a deck of slatted ...

AI Technical Summary

Problems solved by technology

However, the process of this invention is relatively complicated, and it cannot well prevent the harmful gas produced by the anaerobic fermentation formed in the blister process from causing harm to humans and animals.

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