Centralized waste gas treatment system for livestock farm

Abstract

The utility model provides a centralized waste gas treatment system for a farm, which is characterized in that an air feeder is arranged in a breeding chamber, a spray settling chamber is communicated with the breeding chamber through the air feeder and is used for performing spray deodorization on waste gas transmitted by the breeding chamber, and a microwave deodorization chamber is connected onto the spray settling chamber and is used for performing microwave deodorization on the waste gas. Waste gas in the breeding chamber is fed into the spraying settling chamber, gaseous odor substances are controlled by absorption of spraying water in the spraying settling chamber, then the waste gas enters the microwave deodorization chamber, organic molecules are cracked and oxidized under the synergistic effect of microwaves, ultraviolet light and ozone by means of microwave light-oxygen synergistic catalysis, and the waste gas is purified. The purpose of thorough deodorization is achieved; the livestock breeding deodorization device can solve the deodorization problem of livestock breeding, the odor emission reaches the standard, the deodorization efficiency is high, the effect is stable, meanwhile, installation is easy, maintenance is convenient, the occupied area is small, water resources are saved, cross infection of germs is prevented, and biological safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of waste gas treatment, in particular to a waste gas treatment system for a breeding farm. Background Art

[0002] As an important pollution source that affects the rural ecological environment, the odorous gas from the farm will have an adverse impact on the rural ecological environment if it is not handled in time. The waste gas from the farm is mainly composed of odor and greenhouse gases, which mainly come from ammonia produced when organic matter decays, hydrogen sulfide produced when protein in animal organisms decays, and methane produced by fiber decomposition in feed. The main components of the odor in pig farms are hydrogen sulfide and ammonia, which mainly come from the fermentation of feces and the decomposition of carbohydrates in sewage under anaerobic conditions. If the ammonia, hydrogen sulfide and methane in the odor are not handled in time, the odor will increase and endanger human health.

[0003] At present, the traditional odor treatment methods in the livestock and poultry farming industry mainly include: dilution method, biological method, washing method, and masking method. Among them, the washing method is commonly used in most farms in my country. Generally, wet curtains are used to directly spray clean water or to spray water containing reducing agents (such as hypochlorous acid) on wet curtains. This traditional treatment method either makes it difficult to meet the odor standards, or there are problems such as secondary pollution and unstable deodorization effect. At the same time, these treatment methods are often distributed, occupying a large area, consuming a large amount of water, and having high maintenance costs. Summary of the invention

[0004] Purpose of the invention: The purpose of the utility model is to address the deficiencies of the prior art and provide a centralized waste gas treatment system for farms with high waste gas treatment efficiency, good effect and low cost.

[0005] Technical solution: The utility model provides a centralized waste gas treatment system for a breeding farm, comprising:

[0006] A breeding room, wherein a blower is provided in the breeding room;

[0007] A spraying and settling chamber, wherein the spraying and settling chamber is connected to the breeding room through a blower, and the waste gas transmitted from the breeding room is sprayed and deodorized;

[0008] The microwave deodorization chamber is connected to the spraying and settling chamber to perform microwave deodorization on the waste gas.

[0009] Furthermore, the breeding room is provided with a multi-layer structure, and each layer of the structure is provided with a blower connected to the spraying and settling chamber.

[0010] Further, the spray settling chamber is provided with:

[0011] A nozzle, which is arranged at the top of the spray settling chamber;

[0012] A water pump is connected to each nozzle to deliver clean water to the nozzle for spraying.

[0013] Furthermore, a water pool is provided at the bottom of the spray settling chamber, the water pump is arranged in the water pool, and is connected to each spray head through a spray pipeline.

[0014] Furthermore, the microwave deodorization chamber includes a shell, a microwave module, an exhaust gas cavity, and an electrodeless lamp. The microwave module and the exhaust gas cavity are arranged in the shell, and the electrodeless lamp is arranged in the exhaust gas cavity.

[0015] Furthermore, the housing is made of stainless steel.

[0016] Furthermore, a plurality of groups of microwave modules and their corresponding exhaust gas cavities are evenly arranged in the shell.

[0017] Furthermore, the microwave deodorization chamber is provided with an exhaust device.

[0018] Beneficial effects: The utility model sends the waste gas in the breeding room into the spray sedimentation chamber, and controls the gaseous odor substances by absorbing the spray water in the spray sedimentation chamber. Then the waste gas enters the microwave deodorization chamber to utilize the microwave photo-oxygen synergistic catalysis. Under the synergistic action of microwave, ultraviolet light and ozone, the organic molecules are cracked and oxidized, so as to achieve the purpose of thorough deodorization. The utility model can solve the deodorization problem of animal husbandry, and the odor emission meets the standard, with high deodorization efficiency and stable effect. At the same time, it is simple to install, convenient to maintain, and occupies a small area, saves water resources, prevents cross infection of pathogens, and ensures biological safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the processing system of the utility model;

[0020] Figure 2 It is a side view of the processing system of the utility model;

[0021] Figure 3 Schematic diagram of the structure of a single microwave module and exhaust gas cavity. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is described in detail below, but the protection scope of the utility model is not limited to the embodiments.

[0023] A centralized waste gas treatment system for a farm, such as Figure 1-3 As shown, it includes a breeding room 1, a spray sedimentation chamber 3 and a microwave deodorization chamber 4. The exhaust gas in the breeding room 1 is sent into the spray sedimentation chamber 3 through the air blower 2, and the exhaust gas is sprayed and deodorized in the spray sedimentation chamber 3. The microwave deodorization chamber 4 is arranged on the spray sedimentation chamber 3 to perform microwave deodorization on the exhaust gas.

[0024] In some embodiments, the breeding room 1 is constructed as a multi-layer structure, and each layer is provided with a blower 2, which can blow the breeding waste gas generated by each layer into the spraying and settling chamber 3. Specifically, Figure 1 As shown, the breeding room 1 is provided with a five-layer structure, and each layer is provided with a pedestrian walkway. A blower 2 is provided on one side of each pedestrian walkway, and all blowers are connected to the spray settling chamber 3, and the exhaust gas can be sucked into the spray settling chamber 3 arranged on the other side of the breeding room 1 through the blower 2.

[0025] In some embodiments, the spray settling chamber 3 is provided with a spray head 301, a water pump, a water pool 302 and a spray pipeline 303. Figure 2 As shown. Among them, the nozzle 301 is arranged at the top of the spray settling chamber 3. In order to ensure comprehensive treatment of the exhaust gas in the room, the nozzles 301 are evenly distributed. A water pool 302 is provided at the bottom of the spray settling chamber 3, storing clean water or water containing a reducing agent for spraying. A water pump is provided in the water pool 302, and the water pump is connected to each nozzle 301 through a spray pipeline 303. The liquid in the water pool 302 can be pumped out and passed into the nozzle 301 for spraying and settling the exhaust gas. The wastewater generated after spraying flows into the water pool 302, and the water in the water pool 302 is continuously updated. The updated water sprays the exhaust gas through the spray pipe.

[0026] In some embodiments, the shell of the microwave deodorization chamber 4 may be made of 304 stainless steel, and is provided with an inspection platform 401, an inspection manhole 402, a ladder 403, etc.

[0027] In some embodiments, Figure 2 , 3 As shown, the microwave deodorization chamber 4 includes a shell and a microwave module 404, an electric control box 405, an electrodeless lamp 407, and an exhaust gas cavity 406 arranged in the shell. Multiple groups of microwave modules 404 can be arranged in sequence in the shell, and each microwave module 404 is controlled by the corresponding electric control box 405 to emit microwaves, and each microwave module 404 is connected to the exhaust gas cavity 406, which is an open space formed by a bracket. Multiple electrodeless lamps are arranged in the exhaust gas cavity 406. The microwaves emitted by the microwave modules 404 can excite the electrodeless lamps 407 to emit ultraviolet rays and generate ozone to purify the exhaust gas.

[0028] In some embodiments, the microwave deodorization chamber 4 is provided with exhaust equipment, which can be constructed as a plurality of 1060-type heavy hammer fans 407. The exhaust gas enters the microwave deodorization chamber 4 through the air inlet at the top of the spray settling chamber 3. The exhaust equipment can form a negative pressure in the microwave deodorization chamber 4, ensuring smooth exhaust of the system. The fan outlet is equipped with a shutter to prevent rainwater from entering the system.

[0029] The waste gas treatment system of the utility model installs a blower 2 on the side of the breeding room 1 to send the waste gas into the spraying and settling chamber 3. In the spraying and settling chamber 3, after the particulate pollutants in the air flow come into contact with the spray water, the droplets or liquid films diffuse and attach to the particles in the air flow or humidify the particles, so that the particles can be separated and removed by gravity, inertia and other effects. The gaseous pollutants are transported in the spray water by mass transfer such as flocculent molecular diffusion, and chemical reactions to achieve the purpose of separation from the incoming flow, and the gaseous odor substances are controlled by absorption.

[0030] Then, the waste gas enters the microwave deodorization chamber 4 for microwave catalytic oxidation treatment. The microwave catalytic oxidation equipment uses microwave photo-oxygen synergistic catalysis to decompose and oxidize organic molecules under the synergistic effect of microwaves, ultraviolet light, and ozone to achieve the purpose of thorough deodorization. The principle of microwave catalytic oxidation technology is as follows:

[0031] (1) Electromagnetic field: It uses the combined effect of the thermal effect and biological effect of the electromagnetic field. Cells absorb microwaves and heat up due to molecular polarization. The thermal effect of microwaves on cells causes protein denaturation and death. In addition, nucleic acids (RNA) and deoxyribonucleic acid (DNA) that determine normal cell growth and stable genetic reproduction are curled macromolecules tightly connected by several hydrogen bonds. Sufficiently strong microwaves can cause hydrogen bonds to relax, break and recombine, thereby inducing genetic gene mutations or chromosomal aberrations.

[0032] (2) Ultraviolet light: Utilize the high-efficiency bactericidal ability of UV light beams to break down the molecular bonds of bacteria in malodorous gases and destroy the bacterial nucleic acid (DNA); use UV ultraviolet light beams to quickly decompose oxygen molecules in the air to produce free oxygen, i.e., reactive oxygen. Because the positive and negative electrons carried by free oxygen are unbalanced, they need to combine with oxygen molecules to produce sufficient ozone.

[0033] (3) Ozone: Ozone's strong oxidizing property can be used to oxidize and break double bonds, triple bonds and other chemical bonds in odor molecules or harmful gas molecules, thereby decomposing them into harmless substances. For example, ozone can oxidize harmful gas molecules such as formaldehyde, benzene, and sulfur dioxide into harmless substances such as carbon dioxide and water. Ozone molecules will decompose into oxygen and single oxygen atoms, which will continue to combine with other oxygen molecules to form ozone molecules, thus forming a cyclic process. During the decomposition of ozone, a large number of free oxygen atoms will be released. These free oxygen atoms have strong oxidizing properties and can further oxidize odor molecules or harmful gas molecules, thereby accelerating the deodorization effect of ozone.

[0034] As above, although the utility model has been shown and described with reference to a specific preferred embodiment, it should not be interpreted as limiting the utility model itself. Various changes can be made to it in form and detail without departing from the spirit and scope of the utility model defined in the attached claims.

Claims

1. A centralized waste gas treatment system for a farm, characterized in that: include: A breeding room (1), wherein a blower (2) is provided in the breeding room (1); A spraying and settling chamber (3), wherein the spraying and settling chamber (3) is connected to the breeding chamber (1) via a blower (2) and sprays and deodorizes the waste gas transmitted from the breeding chamber (1); the spraying and settling chamber (3) is provided with a nozzle (301), a water pump, a water pool (302) and a spraying pipeline (303); wherein the nozzle (301) is arranged at the top of the spraying and settling chamber (3) and the nozzles (301) are evenly distributed; a water pool (302) is provided at the bottom of the spraying and settling chamber (3), and a water pump is provided in the water pool (302); the water pump is connected to each nozzle (301) via a spraying pipeline (303) and draws liquid in the water pool (302) and passes it into the nozzle (301); A microwave deodorization chamber (4) is connected to the spray settling chamber (3) to perform microwave deodorization on the waste gas; the microwave deodorization chamber (4) comprises a shell and a microwave module (404), an electric control box (405), an electrodeless lamp (407), and a waste gas cavity (406) arranged in the shell; a plurality of groups of microwave modules (404) are arranged in sequence in the shell; each microwave module (404) is controlled by a corresponding electric control box (405) to emit microwaves, and each microwave module (404) is connected to the waste gas cavity (406); the waste gas cavity (406) is an open space formed by a bracket; a plurality of electrodeless lamps (407) are arranged in the waste gas cavity (406); microwaves emitted by the microwave modules (404) excite the electrodeless lamps (407) to emit ultraviolet rays and generate ozone.

2. The centralized waste gas treatment system for breeding farms according to claim 1 is characterized in that: The breeding room is provided with a multi-layer structure, and each layer of the structure is provided with a blower connected to the spraying and settling chamber.

3. The centralized waste gas treatment system for breeding farms according to claim 1 is characterized in that: The housing is made of stainless steel.

4. The centralized waste gas treatment system for breeding farms according to claim 1 is characterized in that: The microwave deodorization chamber is provided with exhaust equipment.

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