Sewage station odor pretreatment device

Abstract

The utility model relates to an odor pretreatment device for a sewage station. The odor pretreatment device comprises a shell, an atomizing nozzle, a filtering assembly, an adsorption assembly, an air blower and a sedimentation tank, a plurality of air inlets are formed in the side end of the shell, the multiple air inlets are formed in the circumferential direction of the shell at intervals, an air outlet is formed in the upper end of the shell, and a liquid outlet is formed in the end, away from the air outlet, of the shell; the atomizing nozzles are arranged in the shell, and the plurality of atomizing nozzles and the plurality of air inlets are arranged at intervals; the filtering assembly is obliquely arranged in the shell and comprises a filtering support and a filtering layer connected with the filtering support, the filtering support is obliquely and fixedly connected with the shell, the filtering layer is fixedly arranged on the filtering support, and the filtering layer is a lime layer; the adsorption assembly is arranged on one side, close to the air outlet, of the filtering assembly; the blower is communicated with the air outlet; and the sedimentation tank is communicated with the liquid outlet. The odor pretreatment device can avoid the phenomenon that the adsorption capacity of activated carbon is reduced due to much water vapor in odor, and the treatment effect of the odor pretreatment device for the sewage station is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of odor pretreatment equipment for sewage treatment plants, and in particular to an odor pretreatment device for sewage treatment plants. Background Technology

[0002] The wastewater treatment plant produces odorous gases, primarily containing ammonia, hydrogen sulfide, methanethiol, dimethyl sulfide, dimethyl disulfide, carbon disulfide, trimethylamine, and styrene, which severely impact the living environment of nearby residents. Therefore, it is necessary to implement odor collection and treatment measures at the wastewater treatment plant to improve the quality of life for nearby residents.

[0003] Because the collected odorous gases contain dust, this dust will precipitate in the spray tower. Over time, this can easily clog the transport pipes between the spray tower and the biological filter, hindering subsequent odor treatment. To avoid clogging the transport pipes between the spray tower and the biological filter, and to reduce the processing pressure on the biological filter, it is essential to pretreat the odorous gases.

[0004] Chinese patent CN 214635401 U discloses a pretreatment device for biological treatment of odorous gases. However, this device only removes dust from the odorous gases but does not adsorb them. Therefore, it is necessary to develop an odor pretreatment device that can both avoid clogging the conveying pipes between the spray tower and the biological filter and reduce the treatment pressure on the biological filter. Utility Model Content

[0005] Therefore, it is necessary to provide a wastewater treatment plant odor pretreatment device to address the problem that existing odor pretreatment devices only remove dust but do not adsorb odors, resulting in high treatment pressure on subsequent biological filters.

[0006] A wastewater treatment plant odor pretreatment device, comprising:

[0007] The housing has an air inlet at one side, and there are multiple air inlets spaced apart around the circumference of the housing. The housing also has an air outlet at the top and a liquid outlet at the end of the housing away from the air outlet.

[0008] Atomizing nozzle, wherein the atomizing nozzle is disposed within the housing, and the number of atomizing nozzles corresponds one-to-one with the number of air inlets, with multiple atomizing nozzles and multiple air inlets arranged alternately;

[0009] A filter assembly is inclinedly disposed within the housing. The filter assembly includes a filter support and a filter layer connected to the filter support. The filter support is inclinedly and fixedly connected to the housing. The filter layer is fixedly disposed on the filter support and is a lime layer.

[0010] An adsorption component is disposed on the side of the filter component near the air outlet;

[0011] A blower, wherein the blower is connected to the air outlet; and

[0012] A sedimentation tank, which is connected to the liquid outlet.

[0013] The aforementioned odor pretreatment device for wastewater treatment plants utilizes multiple air inlets and atomizing nozzles arranged alternately around the perimeter of the casing. This creates a swirling effect within the casing under the operation of a blower, effectively increasing the contact area between water mist and dust. This ensures thorough contact between the dust and water mist. Through the filtration components, some of the water mixed with dust converges along the inclined direction of the filter screen, flowing through the inner wall of the casing, the converging inclined surface, and the outlet into a sedimentation tank for settling. This process removes some water vapor and dust from the sedimentation tank, reducing the moisture content within the casing. Since the filter layer is a lime layer, the moisture in the odor is adsorbed by the lime layer, further reducing the moisture content and making the odor drier. This prevents excessive moisture in the odor from reducing the adsorption capacity of activated carbon, effectively improving the treatment efficiency of the wastewater treatment plant's odor pretreatment device.

[0014] In one embodiment, the angle between the filter assembly and the horizontal plane is 10° to 20°.

[0015] In one embodiment, the filter assembly further includes a filter screen fixedly connected to the filter bracket, the filter screen being disposed on the side of the filter bracket near the air inlet.

[0016] In one embodiment, the adsorption assembly includes an adsorption support, an adsorption layer, and an adsorption element, wherein the adsorption layer and the adsorption element are fixedly disposed on the adsorption support, and the adsorption element is disposed between the filter assembly and the adsorption layer.

[0017] In one embodiment, the adsorption element is formed by accordion folding of electrostatic adsorption paper.

[0018] In one embodiment, the adsorption layer is an activated carbon layer.

[0019] In one embodiment, the odor pretreatment device for the wastewater treatment plant further includes a storage tank and a supply pump, wherein the storage tank is connected to the atomizing nozzle via the supply pump. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the odor pretreatment device for a sewage treatment plant in one embodiment of the present invention;

[0021] Figure 2 for Figure 1The diagram shows the distribution structure of the air inlet and atomizing nozzle in the odor pretreatment device of the wastewater treatment plant.

[0022] The meanings of the numbers in the attached diagram are as follows:

[0023] 100-Odor Pretreatment Device for Wastewater Treatment Plant;

[0024] 10-Shell, 11-Air inlet, 12-Air outlet, 13-Liquid outlet;

[0025] 20-Atomizing nozzle;

[0026] 30-Filter assembly, 31-Filter support, 32-Filter screen, 33-Filter layer;

[0027] 40 - Adsorption component, 41 - Adsorption support, 42 - Adsorption layer, 43 - Adsorption element;

[0028] 50 - Blower;

[0029] 60 - Sedimentation tank;

[0030] 70 - Storage tank;

[0031] 80 - Liquid supply pump. Detailed Implementation

[0032] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 or an electrical 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0038] Please see Figure 1 The odor pretreatment device 100 for sewage treatment plant according to one embodiment of the present invention includes a housing 10, an atomizing nozzle 20, a filter assembly 30, an adsorption assembly 40, a blower 50, and a sedimentation tank 60.

[0039] Please see Figure 1 and Figure 2The housing 10 has an air inlet 11 on its side, and there are multiple air inlets 11. The multiple air inlets 11 are spaced apart around the circumference of the housing 10. The housing 10 has an air outlet 12 at its upper end and a converging slope at its lower end. The converging slope has a liquid outlet 13 at its convergence point.

[0040] Please see Figure 1 The atomizing nozzle 20 is disposed inside the housing 10. The number of atomizing nozzles 20 corresponds one-to-one with the number of air inlets 11. Multiple atomizing nozzles 20 and multiple air inlets 11 are arranged alternately. Under the action of the blower 50, a cyclone effect is achieved, which effectively increases the contact area between dust and water mist, allowing more dust to combine with water mist and settle.

[0041] Please see Figure 1 The filter assembly 30 is inclinedly disposed within the housing 10, with an angle of 10° to 20° to the horizontal plane. This allows some of the water vapor mixed with smoke and dust to flow out along the filter assembly 30 through the side wall of the housing 10 and the liquid outlet 13. This reduces the water vapor inside the housing 10 and also removes some dust. The filter assembly 30 includes a filter support 31, a filter screen 32, and a filter layer 33 connected to the filter support 31. The filter support 31 is inclinedly and fixedly connected to the housing 10, and the filter screen 32 is fixedly connected to the filter support 31, located on the side of the filter support 31 near the air inlet 11. The filter layer 33 is fixedly disposed on the filter support 31. The filter layer 33 is a quicklime layer. The filter screen 32 can filter out some large dust particles, while the quicklime layer can effectively absorb water vapor, making the odor after passing through the filter layer 33 dry and more conducive to subsequent adsorption treatment.

[0042] Please see Figure 1 The adsorption component 40 is located on the side of the filter component 30 near the air outlet 12. The adsorption component 40 includes an adsorption support 41, an adsorption layer 42, and an adsorption element 43. The adsorption layer 42 and the adsorption element 43 are fixedly mounted on the adsorption support 41, and the adsorption element 43 is located between the filter component 30 and the adsorption layer 42. The adsorption element 43 is formed by accordion folding of electrostatic adsorption paper. This allows the electrostatic adsorption paper to adsorb small dust particles, effectively improving the dust treatment effect of the wastewater treatment plant odor pretreatment device 100. The accordion folding method effectively prevents dust from clogging the electrostatic adsorption paper. The adsorption layer 42 is an activated carbon layer. The blower 50 is connected to the air outlet 12, and the sedimentation tank 60 is connected to the liquid outlet 13. A drain outlet is provided at the lower end of the sedimentation tank 60. In subsequent treatment, the liquid in the sedimentation tank 60 can be transported to a corresponding treatment device for further treatment.

[0043] Please see Figure 1 The odor pretreatment device 100 for the wastewater treatment plant also includes a storage tank 70 and a supply pump 80. The storage tank 70 is connected to the atomizing nozzle 20 through the supply pump 80. The storage tank 70 is provided with a water inlet, which is connected to a municipal water pipe.

[0044] The working principle of the odor pretreatment device 100 for sewage treatment plants in this embodiment is as follows: During operation, odor enters the housing 10 through the air inlet 11, while the atomizing nozzle 20 sprays water mist. Under the operation of the blower 50, a vortex is formed inside the housing 10, which effectively increases the contact area between the water mist and the dust, allowing the dust and water mist to come into full contact. After being filtered by the filter screen 32, some of the water mixed with dust gathers along the inclined direction of the filter screen 32 and flows into the sedimentation tank 60 through the inner wall of the housing 10, the converging inclined surface, and the liquid outlet 13 for sedimentation. This can send some water vapor and dust out of the sedimentation tank 60, reduce the moisture in the housing 10, and avoid the phenomenon that the excessive water vapor in the odor reduces the adsorption capacity of the activated carbon, thus effectively improving the treatment effect of the odor pretreatment device 100 for sewage treatment plants.

[0045] As the odor passes through the filter layer 33, the moisture in the odor is adsorbed by the filter layer 33, which further reduces the moisture in the odor, making the odor drier and preventing the phenomenon that excessive moisture in the odor reduces the adsorption capacity of activated carbon. This effectively improves the treatment effect of the odor pretreatment device 100 in the sewage treatment plant.

[0046] The beneficial effects of this utility model are as follows: By arranging multiple air inlets 11 and multiple atomizing nozzles 20 around the circumference of the housing 10, and setting them alternately, the blower 50 can create a vortex in the internal space of the housing 10, effectively increasing the contact area between water mist and dust, allowing the dust and water mist to fully contact each other. Through the filter assembly 30, some of the water mixed with dust gathers along the inclined direction of the filter screen 32, flows into the sedimentation tank 60 through the inner wall of the housing 10, the converging inclined surface and the liquid outlet 13 for sedimentation. This can send some water vapor and dust out of the sedimentation tank 60, reducing the moisture in the housing 10. Since the filter layer 33 is a lime layer, the moisture in the odor can be absorbed by the lime layer, further reducing the moisture in the odor, making the odor drier, and avoiding the phenomenon that the odor has too much moisture and reduces the adsorption capacity of activated carbon. This effectively improves the treatment effect of the sewage treatment plant odor pretreatment device 100.

[0047] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A wastewater treatment plant odor pretreatment device, characterized in that, include: The housing has an air inlet at one side, and there are multiple air inlets spaced apart around the circumference of the housing. The housing also has an air outlet at the top and a liquid outlet at the end of the housing away from the air outlet. Atomizing nozzles are disposed inside the housing, and the number of atomizing nozzles corresponds one-to-one with the number of air inlets, with multiple atomizing nozzles and multiple air inlets arranged alternately. A filter assembly is inclinedly disposed within the housing. The filter assembly includes a filter support and a filter layer connected to the filter support. The filter support is inclinedly and fixedly connected to the housing. The filter layer is fixedly disposed on the filter support and is a lime layer. An adsorption component is disposed on the side of the filter component near the air outlet; A blower, wherein the blower is connected to the air outlet; as well as A sedimentation tank, which is connected to the liquid outlet.

2. The odor pretreatment device for wastewater treatment plants according to claim 1, characterized in that, The angle between the filter component and the horizontal plane is 10° to 20°.

3. The odor pretreatment device for wastewater treatment plants according to claim 2, characterized in that, The filter assembly also includes a filter screen, which is fixedly connected to the filter bracket and is located on the side of the filter bracket near the air inlet.

4. The odor pretreatment device for wastewater treatment plants according to claim 1, characterized in that, The adsorption assembly includes an adsorption support, an adsorption layer, and an adsorption element. The adsorption layer and the adsorption element are fixedly disposed on the adsorption support, and the adsorption layer is disposed between the filter assembly and the adsorption element.

5. The odor pretreatment device for wastewater treatment plants according to claim 4, characterized in that, The adsorption layer is an activated carbon layer.

6. The odor pretreatment device for wastewater treatment plants according to claim 4, characterized in that, The adsorption element is made of electrostatic adsorption paper folded in an accordion.

7. The odor pretreatment device for wastewater treatment plants according to claim 1, characterized in that, It also includes a liquid storage tank and a liquid supply pump, wherein the liquid storage tank is connected to the atomizing nozzle through the liquid supply pump.

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