Microbial deodorizing device
By setting spiral blades and spray pipes in the microbial deodorization device to form a spiral channel, the contact time of gas in the packing layer is extended. Combined with washing and drying layer treatment, the problem of insufficient contact area and time in the existing device is solved, and the deodorization effect and gas treatment efficiency are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUYI FUCHUN ZIGUANG SEWAGE TREATMENT CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-29
AI Technical Summary
In existing microbial deodorization devices, the contact area and contact time between malodorous gases and microbial packing are relatively short, resulting in poor deodorization effect and inability to effectively absorb odors.
By setting up spiral blades extending vertically within the biological packing layer to form a spiral channel, the gas travels within the packing layer is increased. Combined with the water flow from the spray pipe, convection is formed, extending the contact time between the gas and the packing. Simultaneously, a washing layer and a drying layer are set up for further treatment.
It increases the contact area and contact time between malodorous gases and microorganisms, enhances the deodorization effect of microorganisms, reduces the content of malodorous gases in the exhaust gas, and improves the drying efficiency of the gas through multi-layer treatment.
Smart Images
Figure CN224292934U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a microbial deodorization device. Background Technology
[0002] Malodorous gases not only severely impact the ecological environment but also pose a significant threat to human health, causing central nervous system disorders, lesions, and chronic and acute illnesses. Biological deodorization utilizes microorganisms to degrade or transform organic pollutants in odorous gases into harmless or less harmful substances. However, existing microbial deodorization devices are ineffective. Malodorous gases pass vertically through biological packing material, resulting in limited contact area and short contact time between the gas and the microorganisms, leading to poor deodorization and ineffective odor absorption.
[0003] For example, Chinese Patent Publication No. CN209123675U, published on July 19, 2019, entitled "Microbial Deodorization," includes a base. Above the base, from left to right, are arranged a water tank, a deodorization chamber, a sterilization chamber, and a fan box. A fan is installed inside the fan box. The fan's exhaust port is connected to a first ventilation pipe extending into the sterilization chamber, and the fan's exhaust port is connected to a second ventilation pipe extending to the outside of the fan box. The end of the second ventilation pipe is connected to an exhaust hood. An air inlet is located above the side of the deodorization chamber furthest from the sterilization chamber. This utility model, by including a deodorization chamber and a sterilization chamber, allows odorous gases to pass sequentially through the packing material for microbial deodorization, and then through the sterilization chamber for disinfection and sterilization. This secondary treatment of the odorous gases removes unpleasant smells. Furthermore, a filter at the air inlet filters out solid particles from the air, removing impurities and facilitating cleaning of the device.
[0004] The drawbacks of existing patents are that existing microbial deodorization devices have poor deodorization effects. The odorous gas passes through the biological packing in the vertical direction, and the contact area and contact time between the odorous gas and the microbial packing are small and short, resulting in poor microbial deodorization effects and inability to effectively absorb odors. Utility Model Content
[0005] The purpose of this invention is to improve the existing microbial deodorization devices, which suffer from poor deodorization effects due to the small contact area and short contact time between odorous gases and microbial packing. This invention provides a microbial deodorization device that reduces the content of odorous gases in exhaust gases and improves the deodorization effect on waste gases.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A microbial deodorization device includes a biological cylinder. The biological cylinder includes a first air inlet at the bottom and a first air outlet at the top. Inside the biological cylinder, there is a biological packing layer above the first air inlet and a spray pipe above the biological packing layer. The biological packing layer has vertically extending spiral blades to form a vertically extending spiral channel within it. This microbial deodorization device, through the spiral blades, creates a vertically extending spiral channel within the biological packing layer. With a constant height, the spiral channel increases the travel distance of odorous gases within the biological packing layer, thereby increasing the contact area and contact time of the odorous gases as they pass through the biological packing layer. This allows the odorous gases to react fully with the biological packing, reducing the content of odorous gases in the exhaust gas and improving the deodorization effect on the waste gas. Since the biological packing layer is located between the first air inlet and the spray pipe, the odorous gas passes through the biological packing from bottom to top, and the water sprayed from the spray pipe passes through the biological packing from top to bottom. This increases the travel distance of the odorous gas within the biological packing layer, while the gas and water flow form convection, increasing the contact time between the odorous gas and the water, thereby improving the efficiency of the odorous gas dissolving in the water.
[0008] Preferably, the system also includes a chemical cylinder, which comprises a second air inlet at the bottom and a second air outlet at the top. A washing layer and a drying layer are sequentially arranged from bottom to top between the second air inlet and the second air outlet, and the first air outlet and the second air inlet are connected. The malodorous gas passes sequentially through the washing layer and the drying layer. The washing layer further removes the odor and absorbs the acidic substances produced by the reaction; the gas is then dried by the drying layer before being discharged.
[0009] Preferably, the biological packing layer includes a supporting mesh plate and several biological packing materials filled on the supporting mesh plate. The supporting mesh plate is mounted on the inner wall of the biological cylinder to support the biological packing materials. The biological packing material provides a place for deodorizing microorganisms to attach, which can increase the density of microorganisms and effectively prevent microorganisms from being lost with the water flow. Odor molecules dissolved in the aqueous solution and biodegradable are adsorbed and absorbed by microorganisms when passing through the biological packing material. The odor molecules are transferred from the water into the microorganisms, and the odor components entering the microbial cells are decomposed and utilized by the microorganisms as nutrients, thereby removing pollutants.
[0010] Preferably, the spiral blades rotate via a drive shaft whose central axis extends vertically. The upper end of the drive shaft passes through the upper end of the bio-tube and is driven by a drive mechanism located at the upper end of the bio-tube. The rotation of the spiral blades via the drive shaft agitates the biological packing material by increasing the gas travel, thereby ensuring uniform mixing of the odorous gas, the biological packing material, and the water jet from the spray pipe, thus improving reaction efficiency.
[0011] Preferably, the washing layer includes a washing packing layer placed inside the chemical biological cylinder and a spray pipe placed above the washing packing layer.
[0012] Preferably, the washing layer comprises a first washing layer and a second washing layer distributed sequentially from bottom to top, both located below the drying layer. The first and second washing layers utilize specially structured packing materials with a large specific surface area as mass transfer carriers and dehydration packing materials, performing two-stage washing of the exhaust gas. This effectively absorbs acidic odorous gases such as hydrogen sulfide, removes harmful substances, and eliminates the impact on the surrounding environment. The use of the first and second washing layers ensures sufficient reaction of the odorous gases.
[0013] Preferably, the drying layer includes a drying packing layer placed inside the chemical cylinder and a spiral guide plate placed inside the drying packing layer. The spiral guide plate extends in the vertical direction to form a spiral drying channel extending in the vertical direction within the drying packing layer. The drying packing layer includes a drying air inlet located at the bottom of the drying packing layer, which is situated at the bottom end of the spiral drying channel. The deodorized gas passes through the spiral drying channel, increasing the contact area and contact time between the gas and the drying packing, thereby improving drying efficiency.
[0014] Preferably, the system also includes an oxidant dosing device and an alkali dosing device, with a spray pipe placed inside the chemical cylinder connected to one or a combination of the oxidant dosing device and the alkali dosing device. The biologically recalcitrant odor molecules will be oxidized and decomposed by the oxidant in the chemical cylinder, further removing the malodorous gases. Simultaneously, the use of a suitable alkali as an absorbent washing liquid further facilitates the absorption of acidic substances generated during the biological deodorization process.
[0015] Preferably, the second exhaust vent is vented by an exhaust fan.
[0016] Preferably, both the biological and chemical cylinders are equipped with drain outlets at their bottom ends. The accumulated liquid generated during spraying is discharged through these drain outlets.
[0017] Therefore, this invention has the following beneficial effects: The spiral blades create a vertically extending spiral channel within the inner cavity of the biological packing layer. With the biological packing layer at a constant height, the spiral channel increases the travel distance of the odorous gas within the biological packing layer, thereby increasing the contact area and contact time of the odorous gas as it passes through the biological packing layer. This allows the odorous gas to fully react with the biological packing, reducing the content of odorous gas in the discharged gas and improving the deodorization effect on the waste gas. The odorous gas sequentially passes through a washing layer and a drying layer. The washing layer further removes odor and absorbs the acidic substances produced by the reaction. The deodorized gas is then dried in the drying layer before being discharged. The spiral drying channel increases the contact area and contact time between the gas and the drying packing, improving drying efficiency. Attached Figure Description
[0018] Figure 1 This is a structural schematic diagram of a second embodiment of the present invention.
[0019] Figure 2 This is a partial cross-sectional view of the biological tube in this utility model.
[0020] Figure 3 This is a partial schematic diagram of a chemical cylinder in this utility model.
[0021] Figure 4 This is a schematic diagram of one structure of the spiral blade and drive shaft in this utility model.
[0022] Figure 5 This is a structural schematic diagram of Embodiment 4 of the present invention.
[0023] As shown in the picture:
[0024] 1. Bio-tube, 1.1. First air inlet, 1.2. First air outlet, 1.3. Bio-filling layer, 1.4. Spray pipe.
[0025] Chemical cartridge 2, second air inlet 2.1, second air outlet 2.2, washing packing layer 2.3, drying packing layer 2.4
[0026] 3. Spiral blade; 4. Drive shaft; 5. Drive mechanism.
[0027] Oxidizing agent dosing device 6, alkali agent dosing device 7, spiral guide plate 8. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described below in conjunction with the accompanying drawings and specific implementation methods.
[0029] Example 1, as Figure 2 The microbial deodorization device shown includes a biological cylinder 1. The biological cylinder 1 includes a first air inlet 1.1 located at the bottom of the biological cylinder 1 and a first air outlet 1.2 located at the top of the biological cylinder 1. The biological cylinder 1 is provided with a biological packing layer 1.3 located above the first air inlet 1.1 and a spray pipe 1.4 located above the biological packing layer 1.3. The biological packing layer 1.3 is provided with spiral blades 3 extending in a vertical direction, so that a spiral channel extending in a vertical direction is formed in the biological packing layer 1.3.
[0030] Malodorous gases not only severely impact the ecological environment but also pose a significant threat to human health, causing central nervous system disorders, lesions, and chronic and acute illnesses. Biological deodorization utilizes microorganisms to degrade or transform organic pollutants in odorous gases into harmless or less harmful substances. However, existing microbial deodorization devices are ineffective. Malodorous gases pass vertically through biological packing material, resulting in limited contact area and short contact time between the gas and the microorganisms, leading to poor deodorization and ineffective odor absorption. To address the issues of limited contact area and short contact time between odorous gases and microorganisms in existing devices, this paper proposes a microbial deodorization device that reduces the content of malodorous gases in exhaust gases and improves the deodorization effect on waste gases.
[0031] In this embodiment, a microbial deodorization device uses spiral blades 3 to create a vertically extending spiral channel within the inner cavity of the biological packing layer 1.3. With a constant height, the spiral channel increases the travel distance of the odorous gas within the biological packing layer 1.3, thereby increasing the contact area and contact time. This allows for a more thorough reaction between the odorous gas and the biological packing, reducing the odor content in the exhaust gas and improving the deodorization effect. Since the biological packing layer 1.3 is located between the first air inlet and the spray pipe 1.4, the odorous gas passes through the biological packing from bottom to top, while the water sprayed from the spray pipe 1.4 passes through the biological packing from top to bottom. This increases the travel distance of the odorous gas within the biological packing layer 1.3, while simultaneously creating convection between the gas and water flow, further increasing the contact time between the odorous gas and water, thus improving the efficiency of odorous gas dissolving in water.
[0032] In this embodiment, the biological packing layer 1.3 includes a supporting mesh plate and several biological packing materials filled on the supporting mesh plate. The supporting mesh plate is installed on the inner wall of the biological cylinder 1 to support the biological packing materials. The biological packing materials provide a place for deodorizing microorganisms to attach, which can increase the density of microorganisms and effectively prevent microorganisms from being lost with the water flow. Odor molecules dissolved in the aqueous solution and biodegradable are adsorbed and absorbed by microorganisms when passing through the biological packing materials. The odor molecules are transferred from the water into the microorganisms, and the odor components that enter the microbial cells are decomposed and utilized by the microorganisms as nutrients, thereby removing pollutants.
[0033] Example 2, as Figure 1 , Figure 2 , Figure 3The microbial deodorization device shown includes a biological cylinder 1. The biological cylinder 1 includes a first air inlet 1.1 located at the bottom of the biological cylinder 1 and a first air outlet 1.2 located at the top of the biological cylinder 1. The biological cylinder 1 is provided with a biological packing layer 1.3 located above the first air inlet 1.1 and a spray pipe 1.4 located above the biological packing layer 1.3. The biological packing layer 1.3 is provided with spiral blades 3 extending in a vertical direction, so that a spiral channel extending in a vertical direction is formed in the biological packing layer 1.3.
[0034] In this embodiment, as Figure 1 , Figure 2 , Figure 3 As shown, it also includes a chemical cylinder 2, which includes a second air inlet 2.1 at the bottom and a second air outlet 2.2 at the top. A washing layer and a drying layer are arranged sequentially from bottom to top between the second air inlet 2.1 and the second air outlet 2.2. The first air outlet 1.2 and the second air inlet 2.1 are connected. The malodorous gas passes through the washing layer and the drying layer in sequence. The washing layer further removes the odor and absorbs the acidic substances produced by the reaction; and the gas is dried by the drying layer before being discharged.
[0035] Further optimization of the washing layer, such as Figure 1 , Figure 2 , Figure 3 As shown, the washing layer includes a washing packing layer 2.3 placed inside the chemical biological cylinder 1 and a spray pipe 1.4 placed above the washing packing layer 2.3.
[0036] Further optimization of the washing layer, such as Figure 1 , Figure 2 , Figure 3 As shown, the washing layer includes a first washing layer and a second washing layer distributed sequentially from bottom to top, both located below the drying layer. The first and second washing layers utilize specially structured packing materials with a large specific surface area as mass transfer carriers and dehydration packing materials, performing two-stage washing of the exhaust gas. This effectively absorbs acidic odorous gases such as hydrogen sulfide, removes harmful substances, and eliminates the impact on the surrounding environment. The use of the first and second washing layers ensures the odorous gases react fully.
[0037] Further optimization of the drying layer, such as Figure 1 , Figure 2 , Figure 3As shown, the drying layer includes a drying packing layer 2.4 placed inside the chemical cylinder 2 and a spiral guide plate 8 placed inside the drying packing layer 2.4. The spiral guide plate 8 extends vertically to form a vertically extending spiral drying channel within the drying packing layer 2.4. The drying packing layer 2.4 includes a drying air inlet located at the bottom of the drying packing layer 2.4, which is situated at the bottom end of the spiral drying channel. The deodorized gas passes through the spiral drying channel, increasing the contact area and contact time between the gas and the drying packing, thereby improving drying efficiency.
[0038] Further optimization of the second exhaust vent, such as Figure 1 , Figure 2 , Figure 3 As shown, the second exhaust vent draws air out through an exhaust fan.
[0039] Further optimization of biological cylinder 1 and chemical cylinder 2, such as... Figure 1 , Figure 2 , Figure 3 As shown, both the biological cylinder 1 and the chemical cylinder 2 are equipped with drain outlets at their bottom ends. The accumulated liquid generated by the spraying is discharged through the drain outlets.
[0040] In summary, the spiral blades 3 create a vertically extending spiral channel within the inner cavity of the biological packing layer 1.3. With a constant height, this spiral channel increases the travel distance of the odorous gas within the biological packing layer 1.3, thereby increasing the contact area and contact time. This allows for a more thorough reaction between the odorous gas and the biological packing, reducing the odor content in the exhaust gas and improving the deodorization effect. The odorous gas then passes through a washing layer and a drying layer. The washing layer further removes odor and absorbs acidic substances produced by the reaction. The drying layer dries the deodorized gas before discharge. The spiral drying channel further increases the contact area and contact time between the gas and the drying packing, improving drying efficiency.
[0041] Example 3, as Figure 4 The microbial deodorization device shown includes a biological cylinder 1. The biological cylinder 1 includes a first air inlet 1.1 located at the bottom of the biological cylinder 1 and a first air outlet 1.2 located at the top of the biological cylinder 1. The biological cylinder 1 is provided with a biological packing layer 1.3 located above the first air inlet 1.1 and a spray pipe 1.4 located above the biological packing layer 1.3. The biological packing layer 1.3 is provided with spiral blades 3 extending in a vertical direction, so that a spiral channel extending in a vertical direction is formed in the biological packing layer 1.3.
[0042] In this embodiment, as Figure 4As shown, the spiral blade 3 rotates via the drive shaft 4, whose central axis extends vertically. The upper end of the drive shaft 4 passes through the upper end of the biological cylinder 1 and is driven by the drive mechanism 5, which is located at the upper end of the biological cylinder 1. The rotation of the spiral blade 3 via the drive shaft 4 agitates the biological packing material by increasing the gas travel, thereby ensuring that the odorous gas, biological packing material, and water sprayed from the spray pipe 1.4 are evenly mixed, thus improving the reaction efficiency.
[0043] In this embodiment, as Figure 4 As shown, the biological packing layer 1.3 includes a supporting mesh plate and several biological packing materials filled on the supporting mesh plate. The supporting mesh plate is installed on the inner wall of the biological cylinder 1 to support the biological packing materials. The biological packing materials provide a place for deodorizing microorganisms to attach, which can increase the density of microorganisms and effectively prevent microorganisms from being lost with the water flow. Odor molecules dissolved in the aqueous solution and biodegradable are adsorbed and absorbed by microorganisms when passing through the biological packing materials. The odor molecules are transferred from the water into the microorganisms, and the odor components that enter the microbial cells are decomposed and utilized by the microorganisms as nutrients, thereby removing pollutants.
[0044] Further optimization of the deodorization device, such as Figure 4 As shown, it also includes a chemical cylinder 2, which includes a second air inlet 2.1 at the bottom and a second air outlet 2.2 at the top. A washing layer and a drying layer are arranged sequentially from bottom to top between the second air inlet 2.1 and the second air outlet 2.2. The first air outlet 1.2 and the second air inlet 2.1 are connected. The malodorous gas passes through the washing layer and the drying layer in sequence. The washing layer further removes the odor and absorbs the acidic substances produced by the reaction; and the gas is dried by the drying layer before being discharged.
[0045] like Figure 4 As shown, in this embodiment, the spiral blades 3 form a spiral channel extending vertically within the inner cavity of the biological packing layer 1.3. With the height of the biological packing layer 1.3 remaining constant, the spiral channel increases the travel distance of the odorous gas within the biological packing layer 1.3, thereby increasing the contact area and contact time of the odorous gas as it passes through the biological packing layer 1.3. This allows the odorous gas to fully react with the biological packing, reducing the content of odorous gas in the exhaust gas and improving the deodorization effect on the waste gas.
[0046] Example 4, as Figure 5The microbial deodorization device shown includes a biological cylinder 1 and a chemical cylinder 2. The biological cylinder 1 includes a first air inlet 1.1 at its bottom and a first air outlet 1.2 at its top. Inside the biological cylinder 1, there is a biological packing layer 1.3 above the first air inlet 1.1 and a spray pipe 1.4 above the biological packing layer 1.3. The biological packing layer 1.3 has vertically extending spiral blades 3, forming a vertically extending spiral channel within it. The chemical cylinder 2 includes a second air inlet 2.1 at its bottom and a second air outlet 2.2 at its top. A washing layer and a drying layer are sequentially arranged from bottom to top between the second air inlet 2.1 and the second air outlet 2.2. The first air outlet 1.2 and the second air inlet 2.1 are connected. Odorous gases pass sequentially through the washing layer and the drying layer. The washing layer further removes odors and absorbs acidic substances produced by the reaction; the drying layer dries the deodorized gas before it is discharged.
[0047] In this embodiment, as Figure 5 As shown, it also includes an oxidant dosing device 6 and an alkali dosing device 7. The spray pipe 1.4 placed inside the chemical cylinder 2 is connected to one or a combination of the oxidant dosing device 6 and the alkali dosing device 7. The odor molecules that are difficult to decompose biologically will be oxidized and decomposed by the oxidant in the chemical cylinder 2, so that the malodorous gases are further removed. At the same time, the use of a corresponding alkali as an absorbent washing liquid is more conducive to the absorption of acidic substances generated during the biological deodorization process.
[0048] like Figure 5 As shown, in this embodiment, the spiral blades 3 form a vertically extending spiral channel within the inner cavity of the biological packing layer 1.3. With the height of the biological packing layer 1.3 remaining constant, the spiral channel increases the travel distance of the odorous gas within the biological packing layer 1.3, thereby increasing the contact area and contact time of the odorous gas as it passes through the biological packing layer 1.3. This allows the odorous gas to fully react with the biological packing, reducing the content of odorous gas in the discharged gas and improving the deodorization effect on the waste gas. The odorous gas then passes through a washing layer and a drying layer sequentially. The washing layer further removes odor from the odorous gas and absorbs the acidic substances produced by the reaction. The gas is then dried in the drying layer before being discharged. The spiral drying channel further increases the contact area and contact time between the gas and the drying packing, improving the drying efficiency.
[0049] The specific embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the specific scope of implementation of this utility model. All equivalent changes made to the shape and structure of this utility model should be included within the protection scope of this utility model.
Claims
1. A microbial deodorization device, characterized in that, The invention includes a biological cylinder, which includes a first air inlet at the bottom of the biological cylinder and a first air outlet at the top of the biological cylinder. The biological cylinder contains a biological packing layer above the first air inlet and a spray pipe above the biological packing layer. The biological packing layer contains spiral blades extending in a vertical direction to form a spiral channel extending in a vertical direction within the biological packing layer.
2. The microbial deodorization device according to claim 1, characterized in that, It also includes a chemical cylinder, which includes a second air inlet at the bottom of the chemical cylinder and a second air outlet at the top of the chemical cylinder. A washing layer and a drying layer are arranged sequentially from bottom to top between the second air inlet and the second air outlet, and the first air outlet and the second air inlet are connected.
3. A microbial deodorization device according to claim 1 or 2, characterized in that, The biological filler layer includes a support mesh plate and a plurality of biological fillers filled on the support mesh plate.
4. A microbial deodorization device according to claim 1 or 2, characterized in that, The spiral blades rotate via a drive shaft, the central axis of which extends vertically, and the upper end of the drive shaft passes through the upper end of the bio-tube and is driven by a drive mechanism located at the upper end of the bio-tube.
5. The microbial deodorization device according to claim 2, characterized in that, The washing layer includes a washing packing layer placed inside a chemical biological cylinder and a spray pipe placed above the washing packing layer.
6. The microbial deodorization device according to claim 5, characterized in that, The washing layer includes a first washing layer and a second washing layer distributed sequentially from bottom to top, both of which are located below the drying layer.
7. A microbial deodorization device according to claim 2, 5, or 6, characterized in that, The drying layer includes a drying packing layer placed inside a chemical cylinder and a spiral guide plate placed inside the drying packing layer. The spiral guide plate extends along the vertical direction to form a spiral drying channel extending along the vertical direction within the drying packing layer. The drying packing layer includes a drying air inlet placed at the bottom of the drying packing layer, and the drying air inlet is located at the bottom end of the spiral drying channel.
8. A microbial deodorization device according to claim 5 or 6, characterized in that, It also includes an oxidant dosing device and an alkali dosing device, with a spray pipe placed inside the chemical cylinder connecting one or a combination of the oxidant dosing device and the alkali dosing device.
9. A microbial deodorization device according to claim 2, 5, or 6, characterized in that, The second air outlet draws air out through an exhaust fan.
10. A microbial deodorization device according to claim 2, 5, or 6, characterized in that, Both the biological cylinder and the chemical cylinder are equipped with drainage outlets at their bottom ends.