A buried municipal sewage treatment equipment

Abstract

This utility model discloses a buried municipal sewage treatment device, including a shell and a filter cartridge rotatably installed inside it. Multiple non-interconnected filter chambers are arranged in an array within the filter cartridge along its rotation direction. The filter cartridge rotates at a preset angle to connect one filter chamber to the inlet of the shell, and connects any one of the remaining filter chambers' discharge ports to the inlet of a sewage pipe. The discharge port of the sewage pipe passes through the shell and extends to a designated area, while the remaining discharge ports are closed. The filter chamber connected to the inlet of the sewage pipe is equipped with an automatic cleaning component. This utility model can automatically discharge solid particulate impurities trapped in the filter chambers through the sewage pipe, replacing traditional manual cleaning methods. This design significantly reduces manual intervention, lowers labor intensity, avoids filter cartridge clogging caused by untimely manual cleaning, ensures continuous and efficient operation of the filter cartridge, and improves the continuity and timeliness of sewage treatment.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment technology, specifically to an underground municipal sewage treatment device. Background Technology

[0002] Municipal wastewater, also known as urban sewage, refers to wastewater generated from daily life, production, economic activities, and rainwater discharge. Existing wastewater treatment equipment, when filtering solid particulate matter from wastewater, struggles to simultaneously clean the filtered solid particles inside the filter cartridges during the discharge process. Typically, manual cleaning of the filter cartridges is required periodically after the discharge operation is completed. However, this is not only labor-intensive but also makes it difficult to guarantee the timely operation of the filter cartridges. For example, during the rainy season, excessive rainwater discharge can wash large amounts of debris from the road into the filter cartridges, clogging some of the mesh openings. Because these openings cannot be cleared in time, the wastewater treatment equipment cannot perform normal discharge operations, resulting in significant water accumulation on the roads after rain. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide an underground municipal sewage treatment equipment to solve the technical problems mentioned in the prior art.

[0004] An underground municipal sewage treatment device includes a shell and a filter cartridge located between its inlet and outlet. The filter cartridge is rotatably installed inside the shell, and multiple non-communicating filter chambers are arranged in an array inside the filter cartridge along its rotation direction. Each of the filter chambers is provided with a drain port at the bottom. The filter cartridge is rotated at a preset angle to connect one of the filter chambers to the water inlet of the housing, and connects any one of the drain ports of the remaining filter chambers to the feed port of the drain pipe. The discharge port of the drain pipe passes through the housing and extends to a designated area, and the remaining drain ports are in a closed state. The filter chamber, which is connected to the inlet of the sewage pipe, is equipped with an automatic cleaning component. The automatic cleaning component is used to send solid particulate impurities in the filter chamber into the sewage pipe and discharge them to a designated area. The self-cleaning function is achieved by intermittently driving the filter cartridge to rotate at a preset angle and activating the automatic cleaning component.

[0005] Optionally, at least four sets of filter chambers are provided, and the filter chambers located on opposite sides are connected to the water inlet of the housing and the feed inlet of the sewage pipe.

[0006] Optionally, a drainage channel is provided circumferentially between the outer peripheral side of the filter cartridge and the inner sidewall of the housing, and the drainage channel connects the water outlet side of the filter cartridge and the drain port of the housing; The bottom of the inner wall of the housing is provided with a support part, the drain outlet of the housing is lower than the top of the support part in the vertical direction, and the bottom of the filter cartridge is rotatably connected to the top of the support part.

[0007] Optionally, the outer periphery of the filter cartridge is provided with a mesh structure, and the bottom of the filter cartridge is provided with a plate structure.

[0008] Optionally, a collector is detachably installed at the bottom inner side of the filter chamber, the collector comprising: A conical funnel, the top of which extends around the perimeter to connect with the inner wall of the filter cavity; The collecting pipe has one end installed at the bottom of the conical funnel and the other end extending into the drain outlet; The conical funnel and the collecting pipe are each provided with multiple seepage holes.

[0009] Optionally, the automatic cleaning assembly includes: A sealing cover is provided on the outer periphery of the filter chamber that is connected to the feed inlet of the sewage pipe, so that the filter chamber forms a sealed cavity. The gas distribution unit has its outlet end passing through the inner wall of the housing via a pipe, and is located on opposite sides of the same filter chamber as the inlet of the sewage discharge pipe; The controller, connected to the gas distribution unit, is used to control the gas distribution unit to send gas into the filter chamber to purge solid particulate impurities to the sewage pipe for discharge.

[0010] Optionally, the gas distribution unit is configured as a high-pressure gas storage tank or an induced draft fan; The induced draft fan or the electronic valve located on the outlet side of the high-pressure gas storage tank is connected to the controller.

[0011] Optionally, the filter cartridge is equipped with a drive shaft along its axial direction, and one end of the drive shaft passes through the housing and is connected to the output end of the drive motor.

[0012] The beneficial effects that this utility model can produce include: 1. The underground municipal sewage treatment equipment provided by this utility model, through intermittently driving the filter cartridge to rotate at a preset angle, in conjunction with an automatic cleaning component, can automatically discharge solid particulate impurities trapped in the filter chamber through the sewage pipe, replacing the traditional manual cleaning method. This design significantly reduces manual intervention, lowers labor intensity, avoids filter cartridge clogging caused by untimely manual cleaning, ensures continuous and efficient operation of the filter cartridge, and improves the continuity and timeliness of sewage treatment.

[0013] 2. In this utility model, at least four sets of filter chambers are provided, with the chambers on opposite sides respectively connected to the water inlet and the sewage outlet of the shell, forming a buffer unit in the middle. The buffer unit allows solid impurities to be fully separated from excess water, reducing the water carried by the impurities, facilitating subsequent collection and treatment, and improving the convenience of solid impurity treatment. At the same time, the outer periphery of the filter cartridge has a mesh structure (facilitating sewage filtration), and the bottom has a plate structure (dividing the chambers). The collector (conical funnel + collection pipe) at the inner bottom can collect impurities to the sewage outlet, while the seepage holes further separate water, enhancing the impurity collection and dehydration effect.

[0014] 3. In this utility model, a circumferential drainage channel is provided between the filter cartridge and the shell, connecting the water outlet side of the filter cartridge with the drain port of the shell. The drain port of the shell is lower than the top of the support portion, allowing filtered wastewater to be discharged to the next unit in a timely manner, preventing wastewater from flowing back into other filtration chambers and ensuring the unidirectionality and stability of wastewater treatment. The bottom of the filter cartridge is rotatably connected to the shell support portion, resulting in a stable structural design that further avoids wastewater leakage or backflow problems.

[0015] 4. In this utility model, the drive motor is connected to the controller, which can adjust the rotation frequency of the filter cartridge (e.g., once every half day / day or once per hour) according to working conditions (e.g., off-peak / peak season, surrounding sewage discharge volume) to adapt to different sewage loads and improve the flexibility of the equipment. The automatic cleaning component uses an induced draft fan (or high-pressure air tank) to blow away impurities, and forms a closed space with the sealing cover, resulting in efficient cleaning; the collector is detachable, which is convenient for replacement and maintenance, reducing the operation and maintenance costs of the equipment. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an underground municipal sewage treatment device according to the present invention; Figure 2 In this utility model Figure 1 A schematic diagram of the structure in the sewage discharge state; Figure 3 In this utility model Figure 1 A three-dimensional view of the filter cartridge; Figure 4 In this utility model Figure 3 A schematic diagram of the structure after removing the screen layer; Figure 5 In this utility model Figure 1 A schematic diagram of the structure of the support and sealing cover; In the diagram: 1. Shell, 2. Filter cartridge, 21. Filter chamber, 22. Drain outlet, 3. Drain pipe, 4. Automatic cleaning assembly, 41. Sealing cover, 42. Air distribution unit, 5. Drainage channel, 6. Support, 7. Collector, 71. Conical funnel, 72. Collection pipe, 73. Drain hole, 8. Drive shaft, 9. Drive motor. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 and Figure 2 As shown, this utility model provides an underground municipal sewage treatment device, including a housing 1 and a filter cartridge 2 located between its inlet and outlet. The outlet of the housing 1 is connected to the next treatment unit via a drainage pipe, and the inlet of the housing 1 is connected to the outlet of a municipal sewage discharge pipe. The filter cartridge 2 is rotatably installed inside the housing 1, and multiple non-interconnected filter chambers 21 are arranged in an array along its rotation direction inside the filter cartridge 2. Each filter chamber 21 has a drain outlet 22 at its bottom. The filter cartridge 2 rotates at a preset angle to connect one of the filter chambers 21 to the inlet of the housing 1, and connects any one of the drain outlets 22 of the remaining filter chambers 21 to a sewage pipe 3. The feed inlet of the filter cartridge 21 and the discharge outlet of the drain pipe 3 pass through the housing 1 and extend to the designated area, while the remaining drain outlets 22 are closed. The filter chamber 21 connected to the feed inlet of the drain pipe 3 is equipped with an automatic cleaning component 4. The automatic cleaning component 4 is used to send solid particulate impurities in the filter chamber 21 into the drain pipe 3 and discharge them to the designated area. Thus, during the sewage discharge operation, by intermittently driving the filter cartridge 2 to rotate at a preset angle and activating the automatic cleaning component 4, the solid particulate impurities filtered out in the filter cartridge 2 can achieve a self-cleaning function. Compared with the traditional method of manually cleaning pollutants, this greatly reduces labor intensity and ensures the timeliness of the filter cartridge 2's operation.

[0019] As a preferred embodiment, such as Figure 3 As shown, at least four sets of filter chambers 21 are provided, and the filter chambers 21 located on opposite sides are connected to the water inlet of the housing 1 and the feed inlet of the sewage pipe 3. Thus, at least one buffer unit (composed of several connected filter chambers 21) is configured between the water inlet of the housing 1 and the feed inlet of the sewage pipe 3. The buffer unit can fully separate solid impurities from excess water, reduce the water carried in the impurities, facilitate subsequent collection and treatment, and improve the convenience of solid impurity treatment.

[0020] In this embodiment, as Figure 1 and Figure 2As shown, a drainage channel 5 is provided circumferentially between the outer periphery of the filter cartridge 2 and the inner wall of the housing 1. The drainage channel 5 connects the outlet side of the filter cartridge 2 with the drain port of the housing 1. A support part 6 is provided at the bottom of the inner wall of the housing 1. The drain port of the housing 1 is lower than the top of the support part 6 in the vertical direction. The bottom of the filter cartridge 2 is rotatably connected to the top of the support part 6, thereby ensuring that the filtered sewage is discharged to the next treatment unit in a timely manner through the drain port, preventing sewage from flowing back to other filter chambers 21, and ensuring the unidirectionality and stability of sewage treatment.

[0021] In the above, such as Figure 3 and Figure 4 As shown, the outer periphery of the filter cartridge 2 is configured with a mesh structure, and the bottom of the filter cartridge 2 is configured with a plate structure, which can better separate the multiple filter chambers 21. Meanwhile, a collector 7 is detachably installed at the bottom inner side of the filter chamber 21 for easy disassembly and replacement. The collector 7 includes a conical funnel 71 and a collecting pipe 72. The top of the conical funnel 71 extends along its periphery to connect with the inner wall of the filter chamber 21; one end of the collecting pipe 72 is installed at the bottom of the conical funnel 71, and the other end extends into the drain port 22; multiple seepage holes 73 are respectively opened on the conical funnel 71 and the collecting pipe 72. This facilitates the collection of filtered solid particulate impurities into the collecting pipe 72, which helps with subsequent centralized discharge; at the same time, the seepage holes 73 further separate water, enhancing the impurity collection and dehydration effect.

[0022] In this embodiment, as Figure 1 , Figure 2 and Figure 5 As shown, the automatic cleaning assembly 4 includes a sealing cover 41, an air distribution unit 42, and a controller. The sealing cover 41 is located on the outer periphery of the filter chamber 21, which is connected to the inlet of the sewage pipe 3, so that the filter chamber 21 forms a sealed cavity. The outlet of the air distribution unit 42 passes through the inner wall of the housing 1 through a pipe and is located on opposite sides of the same filter chamber 21 as the inlet of the sewage pipe 3. The controller is connected to the air distribution unit 42 and is used to control the air distribution unit 42 to send gas into the filter chamber 21 to blow solid particulate impurities to the sewage pipe 3 for discharge. The air distribution unit 42 is configured as a high-pressure gas storage tank or an induced draft fan. The induced draft fan or an electronic valve located on the outlet side of the high-pressure gas storage tank is connected to the controller. Specifically, for long-term use, an induced draft fan is preferred as the air distribution unit 42, and the induced draft fan is installed inside the protective housing 1 to prevent rainwater erosion.

[0023] In the above, such as Figure 1 and Figure 2As shown, a drive shaft 8 is installed along the axis of the filter cartridge 2. One end of the drive shaft 8 passes through the housing 1 and connects to the output end of the drive motor 9. The drive motor 9 is also connected to a controller for automatic control. For example, during the off-season (rainy season), the filter cartridge 2 can be rotated by one unit angle every half day or day, switching the current position of the previous filter chamber 21 to the next filter chamber 21. During the peak rainy season, the filter cartridge 2 can be rotated by one unit angle every hour, depending on the distribution of municipal sewage, such as the discharge volume of sewage from surrounding residential areas and enterprises, thus improving the flexibility of the equipment. The housing 1 is entirely buried underground. To ensure the heat dissipation performance of the drive motor 9, the drive shaft 8 extends to the ground, and a mounting base is built around it to install the drive motor 9. The portion of the drive shaft 8 located outside the housing 1 and buried underground is connected to it via a hollow pipe for protection.

Claims

1. A buried municipal sewage treatment device, comprising a shell (1) and a filter cartridge (2) located between its inlet and outlet, characterized in that, The filter cartridge (2) is rotatably installed inside the housing (1), and multiple non-communicating filter chambers (21) are arranged in an array inside the filter cartridge (2) along its rotation direction. Each of the filter chambers (21) is provided with a drain port (22) at the bottom. The filter cylinder (2) rotates at a preset angle to connect one of the filter chambers (21) with the water inlet of the housing (1), and connects any one of the drain ports (22) in the remaining filter chambers (21) to the feed inlet of the drain pipe (3). The discharge port of the drain pipe (3) passes through the housing (1) and extends to a designated area, and the remaining drain ports (22) are in a closed state. The filter chamber (21) connected to the feed inlet of the sewage pipe (3) is equipped with an automatic cleaning component (4). The automatic cleaning component (4) is used to send solid particulate impurities in the filter chamber (21) into the sewage pipe (3) and discharge them to a designated area. Thus, by intermittently driving the filter cartridge (2) to rotate at a preset angle and activating the automatic cleaning component (4), the self-cleaning function is realized.

2. The underground municipal sewage treatment equipment according to claim 1, characterized in that, The filter chamber (21) is provided in at least four sets, and the filter chamber (21) located on opposite sides is connected to the water inlet of the shell (1) and the feed inlet of the sewage pipe (3).

3. The underground municipal sewage treatment equipment according to claim 1, characterized in that, A drainage channel (5) is provided circumferentially between the outer periphery of the filter cartridge (2) and the inner wall of the housing (1). The drainage channel (5) connects the water outlet side of the filter cartridge (2) with the drain outlet of the housing (1). The inner wall of the housing (1) is provided with a support (6), the drain outlet of the housing (1) is lower than the top of the support (6) in the vertical direction, and the bottom of the filter cartridge (2) is rotatably connected to the top of the support (6).

4. The underground municipal sewage treatment equipment according to claim 1, characterized in that, The outer periphery of the filter cartridge (2) is provided with a mesh structure, and the bottom of the filter cartridge (2) is provided with a plate structure.

5. The underground municipal sewage treatment equipment according to claim 1, characterized in that, A collector (7) is detachably installed at the bottom inner side of the filter chamber (21), and the collector (7) includes: A conical funnel (71) has its top extending around its perimeter to connect with the inner wall of the filter chamber (21); The collecting pipe (72) is installed at one end at the bottom of the conical funnel (71) and extends to the drain outlet (22) at the other end; The conical funnel (71) and the collecting pipe (72) are respectively provided with multiple seepage holes (73).

6. The underground municipal sewage treatment equipment according to claim 1, characterized in that, The automatic cleaning assembly (4) includes: A sealing cover (41) is provided on the outer periphery of the filter chamber (21) that is connected to the feed inlet of the sewage pipe (3), so that the filter chamber (21) forms a closed cavity. The gas distribution unit (42) has its outlet end passing through the inner wall of the housing (1) via a pipe, and is located on opposite sides of the same filter chamber (21) as the feed inlet of the sewage pipe (3); The controller is connected to the gas distribution unit (42) and is used to control the gas distribution unit (42) to send gas into the filter chamber (21) to blow solid particulate impurities to the sewage pipe (3) for discharge.

7. The underground municipal sewage treatment equipment according to claim 6, characterized in that, The gas transmission and distribution unit (42) is configured as a high-pressure gas storage tank or an induced draft fan; The induced draft fan or the electronic valve located on the outlet side of the high-pressure gas storage tank is connected to the controller.

8. The underground municipal sewage treatment equipment according to claim 1, characterized in that, The filter cartridge (2) is equipped with a drive shaft (8) along its axial direction. One end of the drive shaft (8) passes through the housing (1) and is connected to the output end of the drive motor (9).

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