Multi-layer filtration waste gas treatment mechanism for livestock farm

Abstract

The utility model discloses a multilayer filtration waste gas treatment mechanism for a farm, which relates to the technical field of cultivation and comprises at least two layers of wet curtain assemblies arranged on a gas outlet in parallel, and each wet curtain assembly comprises a wet curtain body, a spraying device arranged at the top of the wet curtain body and a water tank arranged at the bottom of the wet curtain body; the spraying device comprises a spraying pipe which is arranged at the top of the wet curtain body and extends in the length direction of the wet curtain body, water spraying openings spraying water towards the wet curtain body are evenly formed in the bottom of the spraying pipe, and one end of the spraying pipe is connected with a water pool through a water pump; wherein an additive injection pipe is arranged in the water pool of at least one wet curtain assembly, and the additive injection pipe injects an additive into the water pool. The two layers of wet curtain assemblies are adopted, so that the deodorization effect is improved, the spraying device is arranged at the top of the wet curtain body, and splashing of water vapor is avoided; water in the water tank is circulated into the spraying device through the water pump, so that waste of water resources is avoided; the traditional physical adsorption is changed into chemical reaction, so that the deodorization efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of breeding, in particular to a multi-layer filtering waste gas treatment mechanism for a breeding farm. Background Art

[0002] In order to improve the environment around the farm, a wet curtain is usually installed at the air outlet of the breeding house. By spraying water on the wet curtain, the odor in the breeding house is absorbed, thereby reducing the impact of the odor in the breeding house on the surrounding residents. The existing wet curtain sprays water by spraying the wet curtain from the side, and the wet curtain is only set in a single layer. This deodorization method uses the characteristics of ammonia and hydrogen sulfide being soluble in water to deodorize.

[0003] This deodorization method has the following problems: 1. Clean water is easily saturated, so the final deodorization efficiency is maintained at about 30%, and the deodorization efficiency is low; 2. When the single-layer side spray deodorization equipment is started, a vortex airflow is easily formed between the wet curtain and the fan, causing water vapor to splash, resulting in a waste of circulating water, thereby causing a waste of water resources. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-layer filtering waste gas treatment mechanism for a breeding farm, which avoids the splashing of water vapor caused by the swirling airflow and the waste of water resources by arranging multi-layer wet curtains and top spraying; at the same time, additives are added to the spray water to achieve deodorization through chemical reactions, and the deodorization efficiency is high and the effect is good.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a multi-layer filtering waste gas treatment mechanism for a farm, comprising at least two layers of wet curtain assemblies arranged in parallel on the air outlet, the wet curtain assembly comprising a wet curtain body, a spray device arranged on the top of the wet curtain body and a water pool arranged at the bottom of the wet curtain body; the spray device comprises a spray pipe arranged on the top of the wet curtain body and extending along its length direction, the bottom of the spray pipe is evenly provided with water spray outlets for spraying water toward the wet curtain body, and one end of the spray pipe is connected to the water pool through a water pump; wherein at least one of the water pools of the wet curtain assembly is provided with an additive injection pipe, and the additive injection pipe injects additives into the water pool.

[0006] At least two layers of wet curtain assemblies are used to improve the deodorizing effect. The spray device is arranged on the top of the wet curtain body, thereby changing the traditional side spraying method, thereby avoiding the formation of swirling airflow between the wet curtain and the fan, and avoiding the splashing of water vapor; the water in the pool is circulated to the spray device through a water pump, thereby realizing the recycling of spray water, thereby avoiding the waste of water resources; finally, an additive injection pipe is arranged in the pool, and additives are injected into the pool through the additive injection pipe, thereby changing the traditional physical adsorption into a chemical reaction, thereby improving the deodorizing efficiency and achieving a good deodorizing effect.

[0007] In order to prevent dust and impurities in the farm from contaminating the reaction tank, causing frequent replacement of circulating water and waste of additives, an additive injection pipe is provided in the water pool of the outer wet curtain assembly.

[0008] In order to ensure that the top spray water can smoothly enter the wet curtain body, the water spray port is located in the middle of the top of the wet curtain body.

[0009] In order to prevent the top spray water from splashing, water baffles are arranged on both sides of the spray pipe, and the bottoms of the water baffles on both sides are inclined and extend inward to the middle position of the top of the wet curtain body.

[0010] In order to adjust the airflow direction and prevent the splashing of the spray water, a guide plate is provided on the side of the wet curtain body. The guide plate extends along the length direction of the wet curtain body and its opening is upward.

[0011] In order to enable the guide plate to adjust the opening and closing angle, the bottom of the guide plate is hinged on the wet curtain body, and the top of the guide plate is connected to the side mounting frame of the wet curtain body through a pull rod. A sliding groove is vertically arranged on the side mounting frame, and a sliding column is installed in the sliding groove for up and down sliding. The top of the pull rod is hinged on the sliding column, and a locking bolt is arranged between the sliding column and the sliding groove.

[0012] In order to ensure that the water in the wet curtain body enters the water pool smoothly and regulates the direction of the bottom airflow, a set of guide plates are also arranged on both sides of the wet curtain assembly on the water pool.

[0013] In order to facilitate the cleaning of dirt in the pool, a sewage cleaning port is provided at one end of the pool, and a detachable blocking door is provided on the sewage cleaning port.

[0014] In order to facilitate maintenance, a nozzle is detachably mounted on the water spout.

[0015] In order to prevent dirt in the pool from entering the spray device, the water inlet pipe of the water pump extends into the pool, and a filter is installed at one end of the water inlet pipe located in the pool.

[0016] After adopting the above technical solution, the beneficial effects of the utility model are:

[0017] The utility model discloses a multi-layer filtering waste gas treatment mechanism for a breeding farm, which solves the technical problems in the prior art that the wet curtain absorbs odor through clean water, the deodorization efficiency is low and the existing spraying method easily causes water waste. The utility model arranges multi-layer wet curtains and a top spraying method, thereby avoiding the splashing of water vapor caused by the swirling airflow and avoiding the waste of water resources. At the same time, additives are added to the spray water to achieve deodorization through chemical reactions, and the deodorization efficiency is high and the effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a multi-layer filtering waste gas treatment mechanism for a breeding farm according to the utility model;

[0019] Figure 2 yes Figure 1 Side view of

[0020] Figure 3 It is a structural schematic diagram of a multi-layer filtering waste gas treatment mechanism for a farm in Example 2.

[0021] In the figure, 1. the first wet curtain assembly, 11. the wet curtain body, 111. the fixing plate, 112. the side mounting frame, 113. the sliding groove, 12. the spraying device, 121. the spraying pipe, 122. the water pump, 123. the water inlet pipe, 124. the water outlet pipe, 125. the water baffle, 13. the water pool, 131. the sewage cleaning port, 14. the nozzle, 15. the guide plate, 151. the pull rod, 2. the second wet curtain assembly, 3. the additive injection pipe. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] The positions mentioned in this specification are based on the positions of the multi-layer filtering waste gas treatment mechanism of a farm of the utility model when it is working normally, and do not limit the positions during storage and transportation. They only represent relative position relationships, not absolute position relationships.

[0024] Embodiment 1:

[0025] like Figure 1 and Figure 2 As shown together, a multi-layer filtering exhaust gas treatment mechanism for a farm includes at least two layers of wet curtain assemblies arranged in parallel on the air outlet. In this embodiment, the wet curtain assembly is provided with two layers, and can also be provided with three layers in actual application. For the convenience of description, the two layers of wet curtain assemblies are hereby respectively referred to as the first wet curtain assembly 1 and the second wet curtain assembly 2 from the inside to the outside. The dirty air in the farm ( Figure 2 The deodorizing effect is improved by passing through two layers of wet curtains (in the direction of the middle arrow) first through the first wet curtain assembly 1, and then through the second wet curtain assembly 2. The first wet curtain assembly 1 and the second wet curtain assembly 2 have the same structure, and the following only takes the first wet curtain assembly 1 as an example for detailed description.

[0026] The first wet curtain assembly 1 includes a wet curtain body 11 , a spray device 12 disposed on the top of the wet curtain body 11 , and a water pool 13 disposed at the bottom of the wet curtain body 11 .

[0027] The wet curtain body 11 is fixed on the air outlet, and its structure belongs to the prior art, so its structure will not be described here. The spray device 12 includes a spray pipe 121, which is fixed to the top of the wet curtain body 11 and extends along its length. A fixed plate 111 is fixed to the top of the wet curtain body 11, and the spray pipe 121 is fixedly mounted on the fixed plate 111. The bottom of the spray pipe 121 is evenly provided with water spray ports that spray water toward the wet curtain body 11. In this embodiment, the water spray ports are preferably located in the middle of the top of the wet curtain body 11, so as to achieve middle water inlet and ensure uniform water inlet spraying. Water baffles 125 are provided on both sides of the spray pipe 121, and the bottoms of the water baffles 125 on both sides are inclined inwardly extending to the middle of the top of the wet curtain body 11. Through the water baffles 125, the spray water above can be collected to prevent the spray water from splashing and failing to smoothly enter the wet curtain body 11 from the middle of the top of the wet curtain body 11.

[0028] One end of the spray pipe 121 is connected to the water pool 13 through the water pump 122. A nozzle 14 is detachably mounted on the water spout, and the nozzle 14 is convenient to disassemble and replace, so as to facilitate maintenance. The water inlet pipe 123 of the water pump 122 extends into the water pool 13, and a filter is installed at one end of the water inlet pipe 123 located in the water pool 13, so as to prevent dirt at the bottom of the water pool from entering the spray device 12 and causing clogging of the spray device 12. The water outlet pipe 124 of the water pump 122 is connected to the spray pipe 121, and a valve is also arranged on the water outlet pipe 124. The water in the water pool 13 is sucked into the spray pipe 121 by the water pump 122, and then the wet curtain body 11 is sprayed from the top of the wet curtain body 11 through the water spray port, thereby changing the original side spray of the wet curtain to top spray. The water curtain formed by the top spray is located in the middle of the filter material, which can effectively avoid the waste of circulating water caused by the swirling airflow between the fan and the wet curtain; the reduction in the amount of circulating water waste can reduce the output of wastewater in the deodorization process and reduce the pressure on environmental protection.

[0029] In order to improve the deodorization efficiency, an additive injection pipe 3 is provided in the water pool 13 of at least one of the wet curtain assemblies. In order to reduce the amount of additives used, it is preferred that an additive injection pipe 3 is provided in the water pool 13 of one wet curtain assembly. The first wet curtain assembly 1 is located inside the farm, where there are relatively many dust and exhaust gas impurities. After being filtered by the first wet curtain assembly 1, the circulating water quality in the first wet curtain assembly 1 is poor and needs to be replaced frequently. If additives are added here, it is easy to cause waste of additives. Therefore, in this embodiment, an additive injection pipe 3 is preferably provided in the water pool 13 of the outer wet curtain assembly, that is, in the water pool 13 of the second wet curtain assembly 2.

[0030] By providing an additive injection pipe 3, additives can be injected into the water pool 13. The additives in this embodiment include hypochlorous acid, but are not limited to hypochlorous acid. After the odorous substances such as nitrogen (NH3) in the odor come into contact with hypochlorous acid, nitrogen (N-3) is robbed of two electrons by the chlorine free radical (Cl+) in the hypochlorous acid and is oxidized into odorless NH2Cl and water, thereby achieving a deodorizing effect, with high deodorizing efficiency, and the deodorizing efficiency is increased from the original 30% to 60%.

[0031] A guide plate 15 is provided on the side of the wet curtain body 11 . The guide plate 15 extends along the length direction of the wet curtain body 11 , and its opening faces upward.

[0032] Livestock and poultry are particularly prone to catching colds during their growth. If there is no guide plate, the air will be cooled by the wet curtain, and the temperature will drop and the humidity will increase. If the wet and cold air blows directly onto the livestock and poultry, it will cause cold stress to the livestock and poultry, especially during the breeding process of chickens, where the cold stress will be more serious. This will increase the incidence and mortality of livestock and poultry, and directly cause economic losses. The main function of the guide plate 15 is to change the direction of the air. According to the different opening angles of the guide plate 15, the direction of the air is controlled so that the wet and cold air is blown upwards obliquely, so that it does not blow directly onto the livestock and poultry, reducing the cold stress phenomenon of livestock and poultry during the cooling process in summer, reducing the incidence of colds and diseases, improving breeding efficiency, and increasing economic benefits. In addition, the guide plate 15 also has a certain splash-proof effect. When the fan blows, causing the water in the wet curtain body 11 to splash to both sides, it can be blocked by the guide plate 15 and return to the wet curtain body 11, thereby avoiding the wetness of the surrounding environment and avoiding water waste.

[0033] In order to achieve the bottom air inlet regulation and water blocking effect, a group of guide plates 15 are also arranged on both sides of the wet curtain assembly on the pool 13.

[0034] In order to facilitate the cleaning of the water pool 13 , a sewage cleaning port 131 is provided at one end of the water pool 13 , and a detachable blocking door is provided on the sewage cleaning port 131 .

[0035] Embodiment 2:

[0036] like Figure 3 As shown, this embodiment is basically the same as the first embodiment, the only difference is that the angle adjustment function of the guide plate 15 is added. The bottom of the guide plate 15 is hinged on the wet curtain body 11, and the top of the guide plate 15 is connected to the side mounting frame 112 of the wet curtain body 11 through the pull rod 151. The side mounting frame 112 is vertically provided with a sliding groove 113, and a sliding column is installed in the sliding groove 113 for sliding up and down. The top of the pull rod 151 is hinged on the sliding column, and a locking bolt is provided between the sliding column and the sliding groove. By tightening the locking bolt, the position of the sliding column and the sliding groove is locked, thereby playing a role in adjusting the opening and closing angle of the guide plate 15.

[0037] The utility model discloses a multi-layer filtering waste gas treatment mechanism for a breeding farm, which solves the technical problems in the prior art that the wet curtain absorbs odor through clean water, the deodorization efficiency is low and the existing spraying method easily causes water waste. The utility model arranges multi-layer wet curtains and a top spraying method, thereby avoiding the splashing of water vapor caused by the swirling airflow and avoiding the waste of water resources. At the same time, additives are added to the spray water to achieve deodorization through chemical reactions, and the deodorization efficiency is high and the effect is good.

[0038] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A multi-layer filtration waste gas treatment mechanism for a farm, characterized by: It comprises at least two layers of wet curtain assemblies arranged in parallel on the air outlet, wherein the wet curtain assembly comprises a wet curtain body, a spray device arranged on the top of the wet curtain body and a water pool arranged at the bottom of the wet curtain body; The spray device comprises a spray pipe arranged on the top of the wet curtain body and extending along the length direction thereof, the bottom of the spray pipe is evenly provided with water spraying ports for spraying water toward the wet curtain body, and one end of the spray pipe is connected to the water pool through a water pump; An additive injection pipe is provided in the water pool of at least one of the wet curtain assemblies, and the additive injection pipe injects additives into the water pool.

2. A multi-layer filtration waste gas treatment mechanism for a farm according to claim 1, characterized in that: An additive injection pipe is arranged in the water pool of the outer layer wet curtain assembly.

3. The multi-layer filtration waste gas treatment mechanism for a farm according to claim 1 is characterized by: The water spray port is located at the middle position of the top of the wet curtain body.

4. The multi-layer filtration waste gas treatment mechanism for a farm according to claim 1 is characterized by: Water baffles are arranged on both sides of the spray pipe, and the bottoms of the water baffles on both sides are inclined and extend inward to the middle position of the top of the wet curtain body.

5. The multi-layer filtration waste gas treatment mechanism for a farm according to claim 1 is characterized by: A guide plate is disposed on the side of the wet curtain body. The guide plate extends along the length direction of the wet curtain body and its opening is upward.

6. A multi-layer filtration waste gas treatment mechanism for a farm according to claim 5, characterized in that: The bottom of the guide plate is hinged on the wet curtain body, and the top of the guide plate is connected to the side mounting frame of the wet curtain body through a pull rod. A sliding groove is vertically arranged on the side mounting frame, and a sliding column is installed in the sliding groove for up and down sliding. The top of the pull rod is hinged on the sliding column, and a locking bolt is arranged between the sliding column and the sliding groove.

7. The multi-layer filtration waste gas treatment mechanism for a farm according to claim 5, characterized in that: A group of guide plates are also arranged on the water pool on both sides of the wet curtain assembly.

8. The multi-layer filtration waste gas treatment mechanism for a farm according to claim 1 is characterized by: A sewage cleaning port is arranged at one end of the water pool, and a detachable blocking door is arranged on the sewage cleaning port.

9. The multi-layer filtration waste gas treatment mechanism for a farm according to claim 1, characterized in that: A nozzle is detachably mounted on the water spray port.

10. The multi-layer filtration waste gas treatment mechanism for a farm according to claim 1, characterized in that: The water inlet pipe of the water pump extends into the water pool, and a filter screen is installed at one end of the water inlet pipe located in the water pool.

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