Environment-friendly pig raising method

Abstract

The invention discloses an environment-friendly pig raising method. A pig house and a biogas digester are arranged in a pig farm; the pig raising method is characterized in that pig manure generated in the breeding process is collected in a manure tank first, manure pumped out of the manure tank enters a centrifugal pre-separating device, part of liquid manure is separated from the centrifugal pre-separating device and drained into the biogas digester, liquid manure drained from an overflow opening and a liquid outlet of a livestock manure solid-liquid separator is drained into the biogas digester, and solid manure discharged from a solid outlet of the livestock manure solid-liquid separator is used for sale. According to the pig manure processing method, a traditional liquid manure pond is not arranged, the liquid manure out of the pig house is directly separated through the centrifugal pre-separating device and the livestock manure solid-liquid separator, and the solid pig manure can be separated more efficiently and fast; income can be created for the pig farm, the environment is protected, and therefore double purposes are achieved through one effort.

Description

Technical field [0001] The invention relates to a pig raising method, in particular to an environmentally friendly pig raising method. Background technique [0002] Pig manure treatment is an important part of pig farms. The existing pig manure treatment methods of pig farms are as follows: manure is manually discharged into the manure tank, and the manure water in the manure tank is pumped into the animal manure solid by the manure transfer pump. The liquid separator performs solid-liquid separation. The existing livestock manure solid-liquid separator has a feed port, an overflow port, a liquid outlet and a solid outlet. The manure water is separated from the solid manure through the feed port. It is discharged from the solid outlet and can be collected and sold. The treated manure water is discharged from the liquid outlet into the biogas tank for fermentation to produce biogas. The biogas can also be sold; the manure water that is too late for treatment is discharged from th...

AI Technical Summary

Problems solved by technology

[0003] The technical problem of this method of pig manure treatment is: the manure tank is connected to the outside world, and there is more water in the manure tank, because the manure tank is likely to receive rainwater or seepage from the outside, and the effective solid manure will disperse when it enters the manure tank , use the feces delivery pump to beat continuously, the transported mixture has high water content, and the livestock manure solid-liquid separator can only separate limited solid feces, and the efficiency is low; in addition, the liquid discharged from the livestock manure solid-liquid separator liquid outlet There is a lot of dung water and less active ingredients, and the biogas tank will be full soon, but the biogas produced is not much. Because of this problem, it is necessary to improve the existing pig raising methods, especially the pig manure treatment methods

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