Single column low pressure stripping unit for sewage treatment

Abstract

The utility model relates to sewage treatment field especially, it is a kind of single tower low pressure stripping device for sewage treatment, including support frame, shell, gas outlet, sewage inlet, battens and gas outlet component etc., support frame is connected with shell, shell upside is connected with gas outlet, shell upper portion left side is connected with sewage inlet, shell middle part inboard is connected with multiple battens, support frame lower part is equipped with the gas outlet component for treating acidic component in sewage. The utility model discloses through sewage S shape along batten flows to shell lower part, while sewage will promote impeller and cleaning frame rotation to scrape the impurity on batten, so that water vapor moves upward, flows through air inlet hole and contacts sewage to treat sewage, so that it can remove acidic component when sewage flows and treat, promote cleaning frame rotation to scrape the impurity on batten, prevent air inlet hole blockage, enhance gas exchange effect, improve sewage treatment efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment, and in particular to a single-tower low-pressure stripping device for wastewater treatment. Background Technology

[0002] In the field of wastewater treatment, single-tower low-pressure stripping units are an important treatment device widely used to remove pollutants such as volatile organic compounds and ammonia nitrogen from wastewater. By stripping, pollutants are separated from wastewater, thus achieving wastewater purification. This is of great significance for protecting water resources and the ecological environment.

[0003] Existing wastewater treatment methods typically involve introducing wastewater into a stripping tower, where it flows along a ramp. Steam then enters the stripping tower and moves upwards, carrying away acidic components from the wastewater and thus completing the treatment. However, during the wastewater treatment process, impurities in the wastewater tend to accumulate on the ramp. As these impurities accumulate, they gradually clog the air inlets, leading to poor gas flow, a significant reduction in gas exchange efficiency, uneven gas distribution, and ultimately, reduced wastewater treatment efficiency.

[0004] Therefore, it is necessary to design a single-tower low-pressure stripping device for sewage treatment that can carry away acidic components for treatment while the sewage flows, and simultaneously drive the cleaning frame to rotate and scrape impurities on the plate, prevent the air inlet from being blocked, enhance the gas exchange effect, and improve the sewage treatment efficiency. Utility Model Content

[0005] To overcome the shortcomings of wastewater treatment processes, where impurities in the wastewater tend to accumulate on the slab, gradually clogging the air inlet holes, leading to poor gas flow, significantly reduced gas exchange efficiency, uneven gas distribution, and decreased wastewater treatment efficiency, this invention provides a single-tower low-pressure stripping device for wastewater treatment. This device can simultaneously drive a cleaning frame to rotate and scrape impurities on the slab while the wastewater flows, preventing air inlet blockage, enhancing gas exchange, and improving wastewater treatment efficiency.

[0006] The technical solution of this utility model is as follows: a single-tower low-pressure stripping device for sewage treatment, comprising a support frame, a shell, an air outlet, a sewage inlet, a ramp, an air outlet assembly, and an anti-clogging assembly. The shell is connected to the support frame, the air outlet is connected to the upper side of the shell, the sewage inlet is connected to the upper left side of the shell, and multiple ramps are connected to the inner side of the middle of the shell. The lower part of the support frame is provided with an air outlet assembly for treating acidic components in sewage, and an anti-clogging assembly is provided between the ramps to prevent clogging.

[0007] As a preferred option, multiple air inlets are provided in the middle of each panel.

[0008] Preferably, it also includes a drain outlet, which is connected to the lower side of the housing.

[0009] Preferably, the gas outlet assembly includes a reboiler, a connecting gas pipe, a gas guide hood, and a gas guide plate. The connecting gas pipe is connected to the lower right part of the outer shell, the reboiler is connected to the lower right part of the connecting gas pipe, the gas guide hood is connected to the upper left side of the connecting gas pipe, and the gas guide plate is rotatably connected to the upper part of the gas guide hood.

[0010] Preferably, the anti-clogging component includes an overflow plate, a downcomer, a rotating rod, a cleaning rack, and an impeller. Overflow plates are connected to the upper sides of both the left and right sides of the mounting plate. Downcomers are connected between adjacent mounting plates and are connected to the outer casing. A rotating rod is rotatably connected between the middle of the mounting plates. An air guide plate is connected to the rotating rod. Multiple cleaning racks are connected to the outside of the rotating rod, and multiple impellers are connected to the rotating rod.

[0011] Preferably, the impeller and the cleaning frame are arranged alternately.

[0012] This utility model has the following advantages: 1. In this utility model, the sewage flows in an S-shape along the ramp to the lower part of the outer shell. At the same time, the sewage will drive the impeller and the cleaning frame to rotate and scrape the impurities on the ramp, so that the water vapor moves upward and flows through the air inlet to contact the sewage for sewage treatment. Thus, while the sewage is flowing, acidic components are carried away for treatment, and the cleaning frame is driven to rotate to scrape the impurities on the ramp, preventing the air inlet from being blocked, enhancing the gas exchange effect, and improving the sewage treatment efficiency.

[0013] 2. In this invention, while the sewage is flowing, water vapor in the connecting pipe enters the air guide hood and is then discharged from the air guide plate. As the rotating rod rotates, it drives the air guide plate to rotate, so that the water vapor is evenly distributed inside the outer shell. This allows the air guide plate to be rotated to guide the water vapor while the sewage is flowing, which facilitates the even distribution of water vapor, promotes material exchange, and improves the treatment effect and efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional cross-sectional view of the components of this utility model, including the connecting gas pipe and the sewage inlet.

[0016] Figure 3 This is a three-dimensional structural diagram of the overflow plate and downcomer of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the air guide cover and air guide plate of this utility model.

[0018] Reference numerals: 1_Support frame, 2_Outer shell, 3_Air outlet, 4_Drain outlet, 5_Reboiler, 6_Connecting air pipe, 7_Sewage inlet, 8_Bracket, 9_Overflow plate, 10_Downcomer, 11_Rotating rod, 12_Cleaning frame, 13_Impeller, 14_Air guide hood, 15_Air guide plate. Detailed Implementation

[0019] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] A single-tower low-pressure stripping device for wastewater treatment, such as Figures 1-4 As shown, it includes a support frame 1, a housing 2, an air outlet 3, a drain outlet 4, a sewage inlet 7, ramps 8, an air outlet assembly, and an anti-clogging assembly. The housing 2 is connected to the support frame 1. The drain outlet 4 is connected to the lower side of the housing 2 to facilitate sewage discharge. The air outlet 3 is connected to the upper side of the housing 2. The sewage inlet 7 is connected to the upper left side of the housing 2. Four ramps 8 are connected to the inner side of the middle of the housing 2. Each ramp 8 has thirty-four air inlets in the middle to facilitate the entry of water vapor. The lower part of the support frame 1 is equipped with an air outlet assembly for treating acidic components in sewage. Anti-clogging assemblies are provided between the ramps 8 to prevent clogging.

[0021] like Figure 1 , Figure 2 and Figure 4 As shown, the gas outlet assembly includes a reboiler 5, a connecting gas pipe 6, a gas guide hood 14, and a gas guide plate 15. The connecting gas pipe 6 is connected to the lower right part of the outer shell 2. The reboiler 5 is connected to the lower right part of the connecting gas pipe 6. The gas guide hood 14 is connected to the upper left side of the connecting gas pipe 6. The gas guide plate 15 is rotatably connected to the upper part of the gas guide hood 14.

[0022] like Figure 3 and Figure 4 As shown, the anti-clogging component includes an overflow plate 9, a downcomer 10, a rotating rod 11, a cleaning frame 12, and an impeller 13. The upper sides of the left and right sides of the ramp 8 are connected to overflow plates 9. Downcomers 10 are connected between adjacent ramps 8. The downcomers 10 are connected to the outer casing 2. The rotating rod 11 is rotatably connected between the middle of the ramps 8. The air guide plate 15 is connected to the rotating rod 11. Four cleaning frames 12 are connected to the outside of the rotating rod 11. Four impellers 13 are connected to the rotating rod 11. The impellers 13 and the cleaning frames 12 are arranged alternately.

[0023] This device can be used when wastewater treatment is required. Water is connected to the reboiler 5, and the water is heated by starting the reboiler 5 to generate steam. The steam enters the connecting air pipe 6, and then the wastewater flows into the wastewater inlet 7, which is connected to the wastewater delivery pipe. The wastewater falls onto the overflow plate 8 and is limited by the overflow plate 9. When the wastewater rises to the height of the overflow plate 9, it flows along the overflow plate 8 to one side of the downcomer 10, and then flows from the downcomer 10 to the next overflow plate 8 to continue flowing. The wastewater flows along the overflow plate 8 in an S-shape to the lower part of the outer casing 2. During the flow of wastewater, the wastewater drives the impeller 13 and the cleaning frame 12 to rotate, causing the rotating rod 11 to rotate, thereby scraping the impurities on the overflow plate 8 and preventing the air inlet from being blocked. The impeller 13 and the cleaning frame 12 are arranged alternately. At the same time as the wastewater flows, the steam in the connecting air pipe 6 enters the air guide hood 14. The steam is then discharged from the air guide plate 15. As the rotating rod 11 rotates, it drives the air guide plate 15 to rotate, so that the water vapor is evenly distributed inside the outer shell 2. This allows the air guide plate 15 to guide the water vapor during sewage flow, facilitating even distribution, promoting material exchange, and improving treatment effect and efficiency. The water vapor then moves upward, flows through the air inlet and contacts the sewage, carrying away the acidic components in the sewage. The water vapor and acidic components are then discharged from the air outlet 3, thus treating the sewage. The treated sewage is then discharged from the drain outlet 4, undergoing low-pressure sewage treatment. This process allows the acidic components to be carried away during sewage flow while simultaneously driving the cleaning frame 12 to rotate and scrape impurities on the ramp plate 8, preventing the air inlet from becoming blocked, enhancing gas exchange, and improving sewage treatment efficiency. After treatment, the reboiler 5 is closed, and the sewage inlet 7 is disconnected from the sewage delivery pipeline. The device can then be cleaned.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A single column low pressure stripping unit for sewage treatment, characterized by comprising It has a support frame (1), a shell (2), an air outlet (3), a sewage inlet (7), a ramp (8), an air outlet assembly, and an anti-clogging assembly. The support frame (1) is connected to the shell (2), the upper side of the shell (2) is connected to the air outlet (3), the upper left side of the shell (2) is connected to the sewage inlet (7), and the inner side of the middle part of the shell (2) is connected to multiple ramps (8). The lower part of the support frame (1) is provided with an air outlet assembly for treating acidic components in sewage, and an anti-clogging assembly is provided between the ramps (8) to prevent clogging. The anti-clogging component includes an overflow plate (9), a downcomer (10), a rotating rod (11), a cleaning rack (12), and an impeller (13). The upper sides of the left and right sides of the ramp (8) are connected to overflow plates (9). The two adjacent ramps (8) are connected to downcomers (10). The downcomers (10) are connected to the outer shell (2). The middle of the ramps (8) is rotatably connected to the rotating rod (11). The air guide plate (15) is connected to the rotating rod (11). Multiple cleaning racks (12) are connected to the outside of the rotating rod (11). Multiple impellers (13) are connected to the rotating rod (11).

2. The single-tower low-pressure stripping device for wastewater treatment as described in claim 1, characterized in that, Multiple air inlets are opened in the middle of the board (8).

3. The single-tower low-pressure stripping device for wastewater treatment as described in claim 1, characterized in that, It also includes a drain outlet (4), and the drain outlet (4) is connected to the lower side of the outer casing (2).

4. The single-tower low-pressure stripping device for wastewater treatment as described in claim 1, characterized in that, The gas outlet assembly includes a reboiler (5), a connecting gas pipe (6), a gas guide hood (14), and a gas guide plate (15). The lower right part of the outer shell (2) is connected to the connecting gas pipe (6), the lower right part of the connecting gas pipe (6) is connected to the reboiler (5), the upper left side of the connecting gas pipe (6) is connected to the gas guide hood (14), and the upper part of the gas guide hood (14) is rotatably connected to the gas guide plate (15).

5. A single-tower low-pressure stripping device for wastewater treatment as described in claim 1, characterized in that, The impeller (13) and the cleaning frame (12) are arranged alternately.

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