Spraying and spraying device for hypochlorous acid in feed factory
By using hypochlorous acid spraying and misting devices in feed mills, the strong oxidizing and bactericidal properties of hypochlorous acid are utilized to solve the problems of water quality deterioration and limited deodorization effect caused by long-term use of spray water, thus achieving efficient and pollution-free waste gas treatment.
Patent Information
- Application Number
- CN202520146004.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-21
AI Technical Summary
The existing feed mill's spray water has been used for a long time, leading to water quality deterioration. The deodorization effect is limited and cannot completely eliminate odors, causing complaints from surrounding residents.
The system employs a hypochlorous acid spraying and misting device, utilizing the strong oxidizing and efficient bactericidal properties of hypochlorous acid. Hypochlorous acid liquid is sprayed into the exhaust gas through a spray tower and spray pipes to achieve a dual deodorization effect.
Hypochlorous acid spraying devices can quickly oxidize and decompose odor molecules, significantly improve deodorization effects, kill a variety of microorganisms, and leave no residue or pollution, ensuring that exhaust gas meets emission standards.
Smart Images

Figure CN223914446U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a deodorization device for waste gas from a feed mill, and particularly to a spray device for hypochlorous acid in a feed mill. Background Technology
[0002] With increasingly stringent environmental regulations, industrial sites such as feed mills need to adopt effective dust control measures to reduce dust emissions. Spraying technology, as an effective dust control method, is gradually being promoted and applied in feed mills.
[0003] Spraying technology in feed mills is an important environmental protection measure used in the feed production process to reduce dust, microorganisms, and exhaust emissions.
[0004] Feed mills generate waste gases such as dust, odors, volatile organic compounds (VOCs), ammonia, and hydrogen sulfide during production. Spraying technology, as an important component of waste gas treatment equipment, involves counter-current flow of gas and liquid phases within the spray tower. The two phases come into counter-current contact within the tower, utilizing the certain solubility of harmful gases in the absorbent; the soluble portion continuously dissolves into the absorbent liquid, achieving the purpose of degrading the content of harmful components in the gas.
[0005] In existing technologies, feed mills often use clean water circulation for spraying. However, the spray water may accumulate impurities and dirt over a long period of time, leading to water quality deterioration. This can affect the spraying effect and potentially damage the equipment. At the same time, simple water spraying has a limited deodorization effect and cannot completely eliminate odors, causing complaints from surrounding residents.
[0006] Therefore, there is a particular need for a spraying device for hypochlorous acid in feed mills to solve the aforementioned existing problems. Utility Model Content
[0007] The purpose of this invention is to provide a spraying device for hypochlorous acid in feed mills. It effectively solves the problems of water quality deterioration, single deodorization effect, and incomplete deodorization caused by long-term use of sprayed water, which are the shortcomings of the existing technology.
[0008] The technical problem solved by this utility model can be achieved by the following technical solution:
[0009] A spraying device for hypochlorous acid in a feed mill includes a spray tower, a hypochlorous acid preparation equipment, and a hypochlorous acid storage tank. The front end of the spray tower is connected to the feed mill's exhaust gas inlet, and a clean water pump is connected to the front end of the spray tower. A spray pipe with nozzles is installed inside the spray tower. The rear end of the spray tower is connected to an exhaust vent, and a spray pipe with nozzles is installed inside the rear end of the spray tower. The output end of the hypochlorous acid preparation equipment is connected to the input end of the hypochlorous acid storage tank, and the output end of the hypochlorous acid storage tank is connected to both the spray pipe and the spray pipe. A circulating water pump is connected to the bottom of the spray tower via a pipeline, and a sewage drainage network is connected to the bottom of the spray tower via an electric valve.
[0010] In one embodiment of this utility model, the output end of the hypochlorous acid temporary storage tank is connected to the spray pipe via a metering pump.
[0011] In one embodiment of this utility model, the output end of the hypochlorous acid temporary storage tank is connected to the spray pipe via a high-pressure atomizing pump.
[0012] In one embodiment of this utility model, a level gauge is also provided on the spray tower device.
[0013] This utility model discloses a hypochlorous acid spraying device for feed mills. Compared with existing technologies, the spray tower device uses hypochlorous acid spraying. In addition to its strong oxidizing properties and the effects of chlorine-containing disinfectants, hypochlorous acid can also be used for skin and mucous membrane disinfection. After use, it is reduced to water, leaving no residue and pollution. Furthermore, the hypochlorous acid preparation equipment is a slightly acidic hypochlorous acid generator, producing high-purity hypochlorous acid without byproducts such as sodium chloride and chlorate. Hypochlorous acid is also a high-level disinfectant that can quickly kill various bacteria, viruses, fungi, and mycoplasma. After being sprayed with hypochlorous acid by the spray tower device, a spray pipe is installed in the exhaust port at the rear end. A 50ppm concentration of hypochlorous acid solution is sprayed through a high-pressure atomizing pump. Atomization ensures that odor molecules fully contact the hypochlorous acid solution, doubly guaranteeing the deodorization effect. Finally, after the exhaust gas treatment meets the standards, it is discharged into the atmosphere, achieving the purpose of this utility model.
[0014] The features of this utility model can be clearly understood by referring to the drawings and the following detailed description of the preferred embodiments. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the spray device for hypochlorous acid in a feed mill according to the present invention. Detailed Implementation
[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.
[0017] Example
[0018] like Figure 1 As shown, the present invention relates to a spraying device for hypochlorous acid in a feed mill, comprising a spraying tower device 3, a hypochlorous acid preparation device 9, and a hypochlorous acid storage tank 10. The front end of the spraying tower device 3 is connected to the feed mill's exhaust gas inlet 1, and a clean water pump 11 is connected to the front end of the spraying tower device 3. A spraying pipe 4 is installed inside the spraying tower device 3, and nozzles are installed on the spraying pipe 4. The rear end of the spraying tower device 3 is connected to an exhaust outlet 2, and a spraying pipe 5 is installed inside the rear end of the spraying tower device 3. The pipe 5 is equipped with a nozzle; the output end of the hypochlorous acid preparation equipment 9 is connected to the input end of the hypochlorous acid storage tank 10, the output end of the hypochlorous acid storage tank 10 is connected to the spray pipe 4 through the metering pump 7, the output end of the hypochlorous acid storage tank 10 is connected to the spray pipe 5 through the high-pressure atomizing pump 8, the bottom of the spray tower device 3 is connected to the circulating water pump 6 through the pipeline, the bottom of the spray tower device 3 is connected to the sewage drainage network through the electric valve 13, and the spray tower device 3 is also equipped with a level gauge 12.
[0019] Spray tower device 3 uses hypochlorous acid spraying. Besides its strong oxidizing properties and chlorine-containing disinfectant effects, hypochlorous acid can also be used for skin and mucous membrane disinfection. After use, it reverts to water, leaving no residue or pollution. Furthermore, the hypochlorous acid preparation equipment 9 is a slightly acidic hypochlorous acid generator, producing high-purity hypochlorous acid without byproducts such as sodium chloride or chlorate. Hypochlorous acid is a high-level disinfectant that can rapidly kill various bacteria, viruses, fungi, and mycoplasma; at the same concentration, hypochlorous acid has a significantly better bactericidal effect than sodium hypochlorite (80 times).
[0020] This utility model discloses a hypochlorous acid spraying device for feed mills. It employs both hypochlorous acid spraying and aerosol spraying for waste gas deodorization. By adding hypochlorous acid liquid, a weak acid with strong oxidizing properties, it can rapidly oxidize and decompose most odor molecules. For example, ammonia, a common odor molecule, can be decomposed by hypochlorous acid (HCIO) and ammonia (NH3) to produce chloramine and water. Hydrogen sulfide (H2S) is a malodorous gas, which can be oxidized and decomposed by hypochlorous acid (HCIO), and it also has disinfection and sterilization effects, making it safe and reliable. A hypochlorous acid spray is added at the rear end of the spray tower device 3, allowing for full contact with the waste gas and enhancing the deodorization effect. Simultaneously, the addition of a hypochlorous acid spray at the rear end of the spray tower device 3 uses a 50ppm concentration hypochlorous acid liquid sprayed through a high-pressure atomizing pump. Atomization ensures full contact between odor molecules and the hypochlorous acid liquid, doubly guaranteeing the deodorization effect. Finally, after the waste gas treatment meets the standards, it is discharged into the atmosphere.
[0021] In a comparison of deodorization methods in a feed mill, including ordinary water spraying, hypochlorous acid spraying, and hypochlorous acid mist spraying, the exhaust gas first undergoes hypochlorous acid spraying. Hypochlorous acid is a weak acid with strong oxidizing properties, which can quickly oxidize and decompose most odor molecules. Simultaneously, hypochlorous acid spraying has a significant bactericidal effect, capable of killing various microorganisms. Hypochlorous acid spraying is harmless to humans and can be directly applied to the skin. Under open, light-free conditions, hypochlorous acid can decompose into oxygen, water, and chloride ions, leaving no residue, no accumulating toxicity, and causing no environmental pollution. It also decomposes upon reaction with organic matter or exposure to ultraviolet radiation, producing no residue and having no environmental impact, achieving a better deodorization effect. Ordinary water deodorization, on the other hand, has a limited effect, only removing water-soluble impurities. To ensure deodorization effectiveness, after hypochlorous acid spraying, the exhaust gas undergoes a second hypochlorous acid mist spraying, using a high-pressure atomizing pump to ensure sufficient contact between the exhaust gas and the hypochlorous acid. After meeting emission standards, the exhaust gas is then discharged into the atmosphere.
[0022] The working process of the spray device for hypochlorous acid in feed mills according to this invention is as follows:
[0023] When the machine is first turned on and in normal use, the hypochlorous acid preparation equipment 9 starts working, inputting hypochlorous acid liquid into the hypochlorous acid storage tank 10. The metering pump 7 starts working, inputting hypochlorous acid liquid into the spray tower device 3. At the same time, the clean water pump 11 inputs clean water into the spray tower device 3. When the liquid level gauge 12 reaches the high liquid level, the clean water pump 11 stops working, and the circulating water pump 6 starts to carry out the circulating spraying work. At the same time, the high-pressure atomizing pump 8 starts, delivering water to the spray pipe 5 for spraying work.
[0024] When the machine is shut down, the equipment and water pumps stop working, and electric valve 13 opens to discharge sewage into the sewage pipe network.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.
Claims
1. A spraying device for hypochlorous acid in a feed mill, characterized in that, The system includes a spray tower, a hypochlorous acid preparation device, and a hypochlorous acid storage tank. The front end of the spray tower is connected to the feed mill's exhaust gas inlet, and a clean water pump is connected to the front end of the spray tower. A spray pipe with nozzles is installed inside the spray tower. The rear end of the spray tower is connected to an exhaust vent, and a spray pipe with nozzles is installed inside the rear end of the spray tower. The output end of the hypochlorous acid preparation device is connected to the input end of the hypochlorous acid storage tank. The output end of the hypochlorous acid storage tank is connected to both the spray pipe and the spray pipe. A circulating water pump is connected to the bottom of the spray tower via a pipeline, and a sewage drainage network is connected to the bottom of the spray tower via an electric valve.
2. The spraying device for hypochlorous acid in feed mills as described in claim 1, characterized in that, The output end of the hypochlorous acid temporary storage tank is connected to the spray pipe via a metering pump.
3. The spraying device for hypochlorous acid in feed mills as described in claim 1, characterized in that, The output end of the hypochlorous acid temporary storage tank is connected to the spray pipe via a high-pressure atomizing pump.
4. The spraying device for hypochlorous acid in feed mills as described in claim 1, characterized in that, The spray tower device is also equipped with a level gauge.