Application of low-carbon saving type pig house

Abstract

The invention relates to application of a low-carbon saving type pig house, belonging to the field of application of a pig house. The pig house adopts a galvanized steel pipe greenhouse structure, and the roof of the pig house is covered with a plastic light transmission film and a sun-shading net material; a ventilation opening which can be opened and closed is arranged on each of a south wall body and a north wall body, a retractable ventilation skylight facing toward the south is arranged at the top of the pig house and is pulled and retracted through a longitudinal scroll at the top of the pig house; a fan is arranged on each of an east gable and a west gable of the pig house for supplementing ventilation; and a medium pressure atomization spraying system is arranged above a pigpen inthe pig house, a fermentation bed is arranged on the south side of the interior of the pigpen, fermentation bed padding is laid in a fermentation bed padding pit, an aeration fermentation system pipeline is buried at the bottom of the pit. The pig house adopts steel pipe materials and the structure which is helpful for convection and ventilation, and utilizes time-delay atomization spraying technology, fermentation bed pig raising technology and the aeration fermentation technology at the bottom of the fermentation bed, so that the pig house reduces construction cost and use cost, is energy-saving and environment-friendly, and reduces carbon emissions.

Description

Technical field: [0001] The invention relates to the application of a pig house, in particular to the application of a low-carbon, energy-saving and environment-friendly pig house. Background technique: [0002] Existing pig houses are similar in structure to ordinary houses, mostly houses with brick-wood or color-steel structures. This kind of pig house has a long construction period and high cost. The manufacturing of building materials used is a high-energy-consuming industry with large carbon emissions. At the same time, this kind of pig house has problems such as lighting, poor thermal insulation effect, and poor ventilation and cooling effect. , electricity and other heating methods to increase and maintain the temperature of the house, but these methods not only consume high energy, but also cause NH in the house due to the suppression of ventilation. 3 、H 2 The accumulation of S and other gases is not conducive to the health of pigs; and in order to cope with the...

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Problems solved by technology

[0002] Existing pig houses are similar in structure to ordinary houses, mostly with brick-wood or color-steel structures. This kind of pig house has a long construction period and high cost. The manufacturing of building materials is a high-energy-consuming industry with large carbon emissions; at the same time, this type of pig house has problems such as lighting, poor thermal insulation, and poor ventilation and cooling effects: for the growth of pigs, especially piglets in winter In this type of pig house, the ventilation area is often reduced, and at the same time, the house temperature is increased and maintained by heating methods such as burning coal and electricity, but these methods not only consume high energy, but also cause NH3, H2S and other gases is not conducive to the health of the pigs; and in order to cope with the high temperature in summer, such pig houses need to be equipped with fans, cooling curtains-fans, spray cooling systems and other equipment. These equipments make up for the shortcomings of small ventilation area and poor heat insulation effect of such pig houses to a certain extent, but this kind of ventilation and cooling facilities also have high construction and maintenance costs, energy and water consumption, and large carbon emissions during use. For example, although the spray cooling technology has a good cooling effect, it will cause damp water in the pen, promote the breeding of mosquitoes, bacteria, and pollute the air

However, this technology has also encountered some problems in the process of application in China: First, the problem of cooling pigs in the fermentation bed in summer, the fermentation bed itself will ferment to produce heat and is not conducive to heat dissipation, and it is easy to cause heat stress in pigs when encountering high temperature in summer In severe cases, the phenomenon of heat-dead pigs will occur, and the existing spray cooling method consumes a lot of water, which will cause excessive humidity in the fermentation mattress material and affect the fermentation effect; 2. The pig-raising pens in the fermentation bed have a small stock carrying capacity per unit area , resulting in an increase in the construction cost of the shed. Since the fermented bed pig raising technology uses the fermented bedding material to complete the degradation of pig manure and urine, the excrement produced by excessive pigs cannot be degraded in time in a small bedding material. It will cause fermentation failure or even "dead bed" in the fermentation bed, so the carrying capacity per unit area of ​​the fermentation bed pen is about 50% smaller than that of the cement ground pen. , causing anaerobic fermentation to produce CH4, N2O and other greenhouse gases

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