Circular pig house with nested intake passages and exhaust passages and pig farming method

Abstract

The invention provides a circular pig house with nested intake passages and exhaust passages, comprising at least one cylindrical pig house building; each plane floor of each pig house building is radially divided into a plurality of symmetric pigpens by grilles; nested first and second passages are provided in the middle of each pig house building along its symmetric axis; the top end of each inner first passage is sealed, with the bottom end communicated with an air outlet of a corresponding intake device; the bottom end of each outer second passage is communicated with a pig feces collection device, with the top end communicated with outside air; a wall of each first passage serves as an inner wall of the corresponding second passage, the outer wall of each second passage serves as an inner wall of the corresponding pigpen, and each second passage is provided with a hole communicated with the corresponding pigpen; a ceiling of each pigpen is fitted with an intake fan; fresh air is draught in by the first passages, runs through a pipeline into the second passages and is fed into the pigpens by the intake fans, and fouling air in the pigpens is fed into the second passages via openings; excrement in the pigpens runs through the holes into the second passages and drops into the pig feces collection devices.

Description

Technical field [0001] The invention relates to the field of pig breeding, in particular to an environmentally friendly pig house. Background technique [0002] Most pig houses in my country are single-storey with large spacing and occupy a lot of land. Poor pig house structure, poor wind and snow resistance. Can not be sealed with gas disinfection, disinfection is not thorough. Only equipped with water curtain cooling facilities, it is not possible to have constant temperature and humidity in all seasons, automatic ventilation, and high concentration of harmful gases in the pig house in winter. After the pig manure is dried and cleaned, it cannot be fermented into organic fertilizer on the spot, and it is not easy to discharge the biogas after fermentation of the pig urine washing water to meet the standard, the environmental protection investment is large, and the operating cost is high. The breeding waste gas has no purification treatment, the pig house and its surroundings...

AI Technical Summary

Problems solved by technology

The structure of the pig house is not good, and the functions of wind resistance and snow resistance are poor

Unable to airtightly sterilize with gas, incomplete disinfection

Only equipped with water curtain cooling facilities, unable to maintain constant temperature and humidity in all seasons, automatic ventilation, and high concentration of harmful gases in pig houses in winter

Pig manure cannot be harmlessly fermented into organic fertilizer on the spot after it is dried, and it is not easy to discharge pig urine flushing water to reach the standard after biogas fermentation. The environmental protection investment is large and the operating cost is high.

There is no purification treatment for the breeding waste gas, the pig house and its surroundings have a strong odor, there are many mosquitoes and flies, and the environment is not good

Feeding with dry feed, although drinking fountains are installed, the amount of drinking water for pigs is insufficient, which affects health

Due to the poor environment and improper feeding methods, the pigs are in a semi-stressed state and are prone to disease. Therefore, the farmers add a large amount of antibiotics to the feed and drinking water. The drug residues in pork cannot meet the standards, and food safety has a long way to go.

Although there are a variety of pig houses and various new feeding modes, it is still impossible to solve the above problems systematically

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