Zero-emission fermentation bed building type pig raising system and breeding method

CN122804694APending Publication Date: 2026-09-25WENZHOU VOCATIONAL COLLEGE OF SCI & TECH +2
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Patent Information

Application Number
CN202611093813.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-22
Publication Date
2026-09-25

AI Technical Summary

Technical Problem

[0002]传统生猪养殖多采用平养模式,土地利用率低,粪污处理难度大易造成环境污染;夏季热,冬季冷;养殖能耗高、人工成本高;且常规化学消毒药易杀灭发酵床活菌,破坏粪污降解体系,影响零排放效果

Benefits of technology

[0024]1.本发明解决了传统养猪粪污污染、土地利用率低、能耗高、人工成本高、消毒与发酵床兼容性差的问题,环保高效节能,适合规模化推广,通过30~40cm锯末垫层配合商品菌剂高效降解粪尿,火焰消毒避免破坏菌群,实现养殖粪污全量转化无外排,实现环保零排放,且楼房结构较传统平养提升2~4倍土地利用率,适合土地资源紧张地区规模化养殖。

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Abstract

The application discloses a zero-emission fermentation bed building type pig raising system and a raising method, which comprises a multi-storey building type pig house main body, a fermentation bed unit, a temperature control unit, an energy unit, a feeding unit and a disinfection unit; wherein the fermentation bed unit is laid in a pigsty of each layer of pig house and is composed of a 30-40cm thick sawdust cushion layer and a commercial fermentation agent; a fence is arranged on the multi-storey building type pig house main body; the fence adopts a metal grating structure; the fence bottom extends to the edge inside of the fermentation bed unit and is used for separating the activity areas of different pig groups. The application solves the problems of traditional pig raising, such as manure pollution, low land utilization rate, high energy consumption, high labor cost and poor compatibility between disinfection and fermentation bed, and is environmentally friendly, energy-saving and suitable for large-scale promotion.
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Description

Technical Field

[0001] This invention belongs to the field of pig farming technology, and in particular relates to a zero-emission fermentation bed multi-story pig farming system and farming method. Background Technology

[0002] Traditional pig farming primarily employs floor-raising methods, resulting in low land utilization, difficulties in manure treatment, and potential environmental pollution. Summers are hot, winters are cold, and energy and labor costs are high. Furthermore, conventional chemical disinfectants can kill live bacteria in the fermentation bed, disrupting the manure degradation system and impacting zero-emission performance. Therefore, developing an environmentally friendly, efficient, energy-saving pig farming system that is compatible with both disinfection and fermentation beds is an urgent industry need. Summary of the Invention

[0003] The purpose of this invention is to provide a zero-emission fermentation bed multi-story pig farming system and method to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the specific technical solution of the present invention is as follows: A zero-emission fermentation bed multi-story pig farming system, comprising a multi-story pigsty main body, a fermentation bed unit, a temperature control unit, an energy unit, a feeding unit, and a disinfection unit; wherein,

[0005] The fermentation bed unit is laid in the pigpen of each layer of pig house and consists of a 30-40cm thick sawdust bedding layer and commercial fermentation agent;

[0006] The multi-story pigsty is equipped with a fence made of 304 stainless steel. The fence has a metal grid structure and the bottom of the fence extends into the inside of the fermentation bed unit to separate the activity areas of different pig groups.

[0007] The temperature control unit includes a summer cooling module and a winter heating module. The summer cooling module consists of a wet curtain and a longitudinal exhaust fan. The fan is arranged longitudinally along the pigsty to achieve air convection cooling. The winter heating module consists of a heater and a longitudinal long cloth bag. Several small air outlet holes are evenly opened on the surface of the longitudinal long cloth bag. The hot air generated by the heater is evenly delivered to all parts of the pigsty through the longitudinal long cloth bag.

[0008] The energy unit is a photovoltaic panel assembly installed on the roof of the pigsty;

[0009] The feeding unit is an automatic feeding line, including a feed tower, a feed pipeline and a quantitative feeder, and the quantitative feeder is set for each pig pen;

[0010] The disinfection unit is a flame disinfection device used to disinfect the air above the pigpen and spider webs at high temperatures.

[0011] Preferably, the sawdust bedding layer is sterilized at high temperature before being laid, and the commercial fermentation agent is mixed evenly with the sawdust according to the proportion of commercial bacteria, and the humidity is adjusted to 40%-50% after mixing.

[0012] Preferably, the longitudinal long cloth bag is made of wear-resistant and breathable canvas material, and the two sides of the longitudinal long cloth bag are provided with slanted air outlets at 45° angles to the left and right.

[0013] Preferably, the main body of the multi-story pigsty is a 2-4 story concrete structure, with each story being 3.5-4m high, and each story is equipped with an independent ventilation channel and an emergency manure collection trough.

[0014] Preferably, the photovoltaic panel assembly is connected to an energy storage battery, which stores electrical energy for use at night or on rainy days.

[0015] Preferably, the flame sterilization device is a portable high-temperature flame gun, and the flame is at least 100cm away from the surface of the fermentation bed during sterilization.

[0016] This invention also relates to a zero-emission pig farming method, comprising the following steps:

[0017] S1. Preparation of fermentation bed: High temperature treatment of sawdust to kill any possible pathogens, mix in commercial fermentation agent in proportion, add water to adjust the humidity to 40%-50%, lay it into a 30-40cm thick layer, and let it ferment for 3-5 days.

[0018] S2. Pig entry: Weaned piglets or fattening pigs are transferred into pig pens, and the stocking density is controlled at 0.8-1.2㎡ / head;

[0019] S3. Daily temperature control: In summer, turn on the wet curtain and longitudinal exhaust fan to control the temperature inside the house to below 30℃. In winter, turn on the heater and the hot air is evenly distributed through the longitudinal long cloth bag to control the temperature inside the house to above 15℃.

[0020] S4. Automatic feeding: Set the feeding time and dosage of the automatic feed line to feed pigs at fixed times and in fixed quantities every day;

[0021] S5. Flame disinfection: Use a high-temperature flame gun to disinfect the air above the pigpen, the top of the fence, and spider webs 1-2 times a week. The flame should be at least 100cm away from the surface of the fermentation bed. Each disinfection should last 5-10 minutes per pen. Use deworming medication regularly (especially for nematodes).

[0022] S6. Fermentation bed maintenance: Observe the fermentation bed daily. If the pigs are not moving around, manually turn the bedding over. When the bedding layer thickness is less than 10cm, add sawdust in time. For beds with high humidity or dead bedding, remove the bedding material and add new sawdust and an appropriate amount of commercial microbial agent.

[0023] The zero-emission fermentation bed multi-story pig farming system and method of the present invention have the following advantages:

[0024] 1. This invention solves the problems of pollution from traditional pig manure, low land utilization, high energy consumption, high labor costs, and poor compatibility between disinfection and fermentation beds. It is environmentally friendly, efficient, and energy-saving, and suitable for large-scale promotion. It uses a 30-40cm sawdust bedding layer combined with commercial microbial agents to efficiently degrade manure and urine. Flame disinfection avoids destroying the microbial community, achieving full conversion of livestock manure with no external discharge, realizing zero emissions. Moreover, the multi-story structure improves land utilization by 2-4 times compared to traditional flat farming, making it suitable for large-scale farming in areas with scarce land resources.

[0025] 2. This invention achieves uniform temperature distribution inside the building by using longitudinal wet curtain fans for cooling and bag-type warm air fans for heating, avoiding hot and cold dead zones. It also utilizes rooftop photovoltaic panels to generate electricity for self-sufficiency, reducing dependence on grid electricity costs and reducing solar radiation heat input.

[0026] 3. This invention reduces manual labor through an automated feeding line, eliminates the need for chemical agents for flame sterilization, and does not affect the efficiency of the fermentation bed, thereby reducing overall breeding costs by more than 30%. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the fermentation bed unit in this invention;

[0030] Figure 3 This is a schematic diagram of the temperature control unit in this invention;

[0031] Figure 4 This is a schematic diagram of the feeding unit in this invention. Detailed Implementation

[0032] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the embodiments of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0033] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0036] The following disclosure provides many different implementations or examples for carrying out different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0037] To better understand the purpose, structure, and function of this invention, the following detailed description of a zero-emission fermentation bed multi-story pig farming system and method is provided in conjunction with the accompanying drawings.

[0038] like Figure 1-4As shown, this invention discloses a zero-emission fermentation bed multi-story pig farming system, comprising a multi-story pigsty main body, fermentation bed units, a temperature control unit, an energy unit, a feeding unit, and a disinfection unit. The fermentation bed units are laid in the pig pens of each floor of the pigsty and consist of a 30-40cm thick sawdust bedding layer and a commercially available fermentation agent. The commercially available fermentation agent is a compound microbial agent that can degrade pig manure to achieve zero emissions. The fermentation bed is the core component for achieving zero emissions. The 30-40cm thick sawdust bedding layer balances air permeability, adsorption, and cost control, is suitable for microbial reproduction, and is easy to maintain through daily turning and turning. The microbial strains used are commercially available compound fermentation agents containing Bacillus subtilis, lactic acid bacteria, and yeast, which can rapidly degrade pig manure into organic fertilizer. Sawdust needs to be sterilized at high temperature before being laid. The commercial fermentation agent should be mixed evenly with the sawdust according to the instructions, and the humidity should be adjusted to 40%-50% after mixing. It should be allowed to ferment for 3-5 days before use. The commercial fermentation agent is a professional microbial preparation for fermented bed farming. Its core function is to decompose pig manure and maintain the fermentation balance of the bedding material. It needs to be used in conjunction with bedding materials with a suitable carbon-to-nitrogen ratio, such as sawdust. It mainly contains a complex of actinomycetes, filamentous fungi, and yeast, which convert pig manure into harmless substances such as carbon dioxide, water vapor, and microbial protein through biological reactions.When selecting bacterial strains, it is important to consider technical compatibility and avoid counterfeit or substandard products and suppliers without technical support. The multi-story pigsty is equipped with a fence made of 304 stainless steel, which is corrosion-resistant, easy to clean, and high-strength, adaptable to the humid environment of the fermentation bed, and extends its service life. The fence uses a metal grid structure, extending to the inner edge of the fermentation bed unit to separate the activity areas of different pig groups and prevent the pigs from rooting and causing the edge of the bedding to collapse. The temperature control unit includes a summer cooling module and a winter heating module. The summer cooling module consists of evaporative cooling pads and longitudinal exhaust fans. The fans are arranged longitudinally along the pigsty to achieve air convection cooling. The evaporative cooling pads are installed at one end of the pigsty, and the fans are arranged longitudinally at the other end, forming longitudinal convection ventilation. Outdoor air is cooled by the evaporative cooling pads before entering the pigsty and then extracted by the fans, achieving a uniform temperature reduction and avoiding localized high temperatures, maintaining a suitable range of 22-30℃. The winter heating module consists of a heater and a longitudinally arranged long cloth bag. Several small air outlets are evenly opened on the surface of the long cloth bag. The hot air generated by the heater is evenly delivered to all parts of the pigpen through the long cloth bag. The hot air from the heater is blown evenly to all parts of the pigpen through the small holes in the cloth bag, avoiding excessive local temperature and maintaining a suitable temperature range of 15-20℃ in the pigpen. The energy unit is a photovoltaic panel module laid on the roof of the pigpen. The photovoltaic panel is connected to the pigpen power supply system. When the power supply is insufficient, the mains power is used. The photovoltaic panel absorbs solar energy to generate electricity to power equipment such as fans, heaters, and automatic feeding lines, reducing the consumption of grid electricity. At the same time, the photovoltaic panel blocks sunlight, reduces the roof temperature, and reduces the thermal impact of solar radiation on the pigpen. The photovoltaic panel is connected to the energy storage battery. Excess electricity is stored and used at night or on rainy days, improving the energy self-sufficiency rate. The feeding unit is an automatic feeding line, including a feed tower, conveying pipes, and a metering feeder. The metering feeder is installed for each pigpen. The feed tower is located on the outside of the pigpen. The conveying pipe runs through each floor of the pigpen, and the metering feeder is installed for each pigpen. By setting the feeding time and dosage, timed and quantitative feeding can be achieved, reducing the workload of manual feeding and lowering labor costs. At the same time, it can prevent pigs from competing for food and ensure uniform feeding. The disinfection unit is a flame disinfection device used to disinfect the air above the pigpen and spider webs at high temperature, avoiding the use of chemical disinfectants.

[0039] Before laying the sawdust bedding, it is disinfected by sun exposure. Commercial fermentation agents are mixed evenly with the sawdust according to the commercial bacteria ratio, and the humidity is adjusted to 40%-50% after mixing. The longitudinally oriented cloth bags are made of wear-resistant and breathable canvas, with slanted air outlets at 45° intervals on both sides of the bags, with a 4m spacing between outlets on the same side. The multi-story pigsty has a 2-4 story concrete structure, with each floor 3.5-4m high. Each floor has an independent ventilation channel and an emergency manure collection trough, increasing land utilization by 2-4 times compared to traditional floor-raising. Each floor has an independent ventilation channel and an emergency manure collection trough. The ventilation channels, combined with a temperature control unit, ensure air circulation within the shed; the emergency collection trough is used for temporary manure collection during fermentation bed turning and maintenance, further ensuring zero emissions. Photovoltaic panels are connected to energy storage batteries, which store electricity for use at night or on rainy days. The flame sterilization device is a portable high-temperature flame gun. During sterilization, the flame should be at least 100cm away from the surface of the fermentation bed to avoid burning the pigs, bedding, and live bacteria. The air above the pigpen, the top of the fence, and spider webs should be sterilized 1-2 times a week. During sterilization, the flame should be strictly kept at least 50cm away from the surface of the fermentation bed, and each sterilization session should last 5-10 minutes per pen. This achieves high-temperature sterilization while preventing burns to the sawdust bedding and microbial flora.

[0040] Using the above system to raise fattening pigs, the cycle is 150 days, each pig gains 110kg, the ammonia concentration in the shed is less than 15ppm, there is zero discharge of manure and sewage, electricity costs are reduced by 60% compared with the traditional mode, labor costs are reduced by 70%, and the survival rate of live bacteria in the fermentation bed is stable at over 90%.

[0041] This invention also relates to a zero-emission pig farming method, comprising the following steps:

[0042] S1. Preparation of fermentation bed: High temperature treatment of sawdust to kill any possible pathogens, mix in commercial fermentation agent in proportion, add water to adjust the humidity to 40%-50%, lay it into a 30-40cm thick layer, and let it ferment for 3-5 days.

[0043] S2. Pig entry: Weaned piglets or fattening pigs are transferred into pig pens, and the stocking density is controlled at 0.8-1.2㎡ / head;

[0044] S3. Daily temperature control: In summer, turn on the wet curtains and longitudinal exhaust fans to keep the temperature inside the house in a suitable range of 22-30℃. In winter, turn on the heater and the hot air is evenly distributed through the longitudinal long cloth bag to keep the temperature inside the house at 15-20℃.

[0045] S4. Automatic feeding: Set the feeding time and dosage of the automatic feed line to feed pigs at fixed times and in fixed quantities every day;

[0046] S5. Flame disinfection: Use a high-temperature flame gun to disinfect the air above the pigpen, the top of the fence, and spider webs 1-2 times a week. The flame should be at least 100cm away from the surface of the fermentation bed. Each disinfection should last 5-10 minutes per pen. Use deworming medication to treat worms, mainly considering the occurrence of fecal-oral diseases such as filariasis.

[0047] S6. Fermentation bed maintenance: Turn the fermentation bed once a day, add an appropriate amount of commercial microbial agent, and add sawdust in time when the thickness of the bedding layer is less than 10cm. For beds with high humidity or dead beds, remove the bedding material in time and add new sawdust.

[0048] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A zero-emission fermentation bed multi-story pig farming system, characterized in that: It includes a multi-story pigsty main structure, fermentation bed unit, temperature control unit, energy unit, feeding unit, and disinfection unit; among which, The fermentation bed unit is laid in the pigpen of each layer of pig house and consists of a 30-40cm thick sawdust bedding layer and commercial fermentation agent; The multi-story pigsty is equipped with a fence made of 304 stainless steel. The fence has a metal grid structure and the bottom of the fence extends into the inside of the fermentation bed unit to separate the activity areas of different pig groups. The temperature control unit includes a summer cooling module and a winter heating module. The summer cooling module consists of a wet curtain and a longitudinal exhaust fan. The fan is arranged longitudinally along the pigsty to achieve air convection cooling. The winter heating module consists of a heater and a longitudinal long cloth bag. Several small air outlet holes are evenly opened on the surface of the longitudinal long cloth bag. The hot air generated by the heater is evenly delivered to all parts of the pigsty through the longitudinal long cloth bag. The energy unit is a photovoltaic panel assembly installed on the roof of the pigsty; The feeding unit is an automatic feeding line, including a feed tower, a feed pipeline and a quantitative feeder, and the quantitative feeder is set for each pig pen; The disinfection unit is a flame disinfection device used to disinfect and sterilize spider webs and air above the pigpen at high temperatures.

2. The zero-emission fermentation bed multi-story pig farming system according to claim 1, characterized in that: The sawdust bedding layer is sterilized at high temperature before being laid.

3. The zero-emission fermentation bed multi-story pig farming system according to claim 1, characterized in that: The longitudinal long cloth bag is made of wear-resistant and breathable canvas material, and the two sides of the longitudinal long cloth bag are provided with slanted air outlets at 45° angles.

4. The zero-emission fermentation bed multi-story pig farming system according to claim 1, characterized in that: The main body of the multi-story pigsty is a 2-4 story concrete structure, with each story being 3.5-4m high. Each story is equipped with an independent ventilation channel and an emergency manure collection trough.

5. The zero-emission fermentation bed multi-story pig farming system according to claim 1, characterized in that: The photovoltaic panel is connected to an energy storage battery, which stores electrical energy for use at night or on rainy days.

6. The zero-emission fermentation bed multi-story pig farming system according to claim 1, characterized in that: The flame sterilization device is a portable high-temperature flame gun, and the flame is at least 100cm away from the surface of the fermentation bed during sterilization.

7. A zero-emission pig farming method based on the system described in any one of claims 1 to 6, characterized in that: Includes the following steps: S1. Preparation of fermentation bed: High temperature treatment of sawdust to kill any possible pathogens, mix in commercial fermentation agent in proportion, add water to adjust the humidity to 40%-50%, lay it into a 30-40cm thick layer, and let it ferment for 3-5 days. S2. Pig entry: Weaned piglets or fattening pigs are transferred into pig pens, and the stocking density is controlled at 0.8-1.2㎡ / head; S3. Daily temperature control: In summer, turn on the wet curtain and longitudinal exhaust fan to keep the temperature inside the house below 30℃. In winter, turn on the heater and the hot air is evenly distributed through the longitudinal long cloth bag to keep the temperature inside the house above 15℃. S4. Automatic feeding: Set the feeding time and dosage of the automatic feed line to feed pigs at fixed times and in fixed quantities every day; S5. Flame disinfection: Use a high-temperature flame gun to disinfect the air above the pigpen, the top of the fence, and spider webs 1-2 times a week. The flame should be at least 100cm away from the surface of the fermentation bed. Each disinfection should last 5-10 minutes per pen. Use deworming medication regularly. S6. Fermentation bed maintenance: Observe the fermentation bed daily. If the pigs are not moving around, manually turn the bedding over. When the bedding layer thickness is less than 10cm, add sawdust in time. For beds with high humidity or dead bedding, remove the bedding material and add new sawdust and an appropriate amount of commercial microbial agent.