Sewage treatment tank

Abstract

The utility model relates to the technical field of sewage treatment, and particularly discloses a sewage treatment tank which comprises a tank body, a first filler layer, a second filler layer and a control module, a water inlet is formed in the bottom of the tank body and communicated with a water inlet pipeline, a water inlet control valve is arranged on the water inlet pipeline, and a water outlet is formed in the top of the tank body and communicated with a water outlet pipeline. A water outlet control valve is arranged on the water outlet pipeline; a filling opening is formed in the side wall of the tank body; the first filler layer is arranged in the tank body, and a vibration device is arranged on one side of the first filler layer; the second filler layer is arranged in the tank body and is positioned above the first filler layer; the control module is in signal connection with the water inlet control valve and the water outlet control valve. Therefore, the sewage treatment efficiency can be improved under high water purification load, and harmful substances in the sewage can be fully removed, so that the environmental pollution caused by discharge of treated water is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment tank. Background Art

[0002] In the production processes of industry and agriculture, a large amount of sewage rich in nitrogen and phosphorus is generated. When discharging sewage rich in nitrogen and phosphorus that is untreated or fails to meet the treatment standards, it will directly lead to the phenomenon of water blooms, seriously affecting the survival of fish and other aquatic organisms, and ultimately resulting in the pollution of the water supply source, affecting the supply of drinking water for residents, and causing serious economic losses and social impacts. Existing sewage treatment systems have problems such as low treatment efficiency and poor treatment effects under high water purification loads, and still cause certain pollution to the environment. Summary of the Utility Model

[0003] In view of this, the utility model provides a sewage treatment tank, which can improve the sewage treatment efficiency under high water purification loads, fully remove harmful substances in the sewage, and thus avoid environmental pollution caused by the discharge of treated water.

[0004] An embodiment of the utility model provides a sewage treatment tank, which includes a tank body, a first packing layer, a second packing layer and a control module. An inlet is opened at the bottom of the tank body, and the inlet is communicated with an inlet pipe. An inlet control valve is arranged on the inlet pipe. An outlet is opened at the top of the tank body, and the outlet is communicated with an outlet pipe. An outlet control valve is arranged on the outlet pipe. A packing port is opened on the side wall of the tank body; the first packing layer is arranged inside the tank body, and a vibration device is arranged on one side of the first packing layer; the second packing layer is arranged inside the tank body, and the second packing layer is located above the first packing layer; the control module is signal-connected to the inlet control valve and the outlet control valve.

[0005] Further, the first packing layer includes a first fixing plate, suspension rods and a second fixing plate. The first fixing plate is arranged horizontally and is connected to the tank body; a plurality of suspension rods are connected below the first fixing plate; the second fixing plate is connected to the connecting rods, so as to form a suspended reaction chamber between the first fixing plate and the second fixing plate.

[0006] Further, the second packing layer includes a third fixing plate and a fixed-bed reaction chamber. The third fixing plate is arranged horizontally and is connected to the tank body; the fixed-bed reaction chamber is arranged between the first fixing plate and the third fixing plate.

[0007] Further, the control module includes a data processor, a water quality sensor and an intelligent control panel. The water quality sensor is arranged on the outlet pipe; the intelligent control panel is arranged on the tank body; wherein, the water quality sensor, the intelligent control panel, the inlet control valve and the outlet control valve are signal-connected to the data processor.

[0008] Further, the sewage treatment tank further includes a water distributor which is arranged at the bottom of the tank body. The water distributor includes a main water distribution pipe and water distribution branch pipes. The main water distribution pipe is communicated with the water inlet, and a plurality of water distribution branch pipes are communicated with both sides of the main water distribution pipe. A plurality of water distribution holes are formed in the water distribution branch pipes.

[0009] Further, the vibration device includes a first connecting piece, a second connecting piece and a cam guide rod mechanism. The first connecting piece is connected to the inner wall of the tank body, and a rotating motor is arranged on the first connecting piece; the second connecting piece is connected to the second fixing plate; the cam guide rod mechanism is connected to the rotating motor and the second connecting piece; wherein, the rotating motor is signal-connected to the control module.

[0010] Further, the sewage treatment tank further includes a flushing pipeline. The inlet of the flushing pipeline is communicated with the outlet pipeline, and the outlet of the flushing pipeline is communicated with the inlet pipeline. A flushing pump is arranged on the flushing pipeline; wherein, the flushing pump is signal-connected to the control module.

[0011] Further, the sewage treatment tank further includes an air inlet pipeline. The outlet of the air inlet pipeline is communicated with the inlet pipeline, and an aeration device is arranged at the inlet of the air inlet pipeline; wherein, the aeration device is signal-connected to the control module.

[0012] Further, the sewage treatment tank further includes a reflux pipeline. The inlet of the reflux pipeline is communicated with the outlet pipeline, and the outlet of the reflux pipeline is communicated with the inlet pipeline. A reflux pump and an automatic cleaning device are arranged on the reflux pipeline; wherein, the reflux pump and the automatic cleaning device are signal-connected to the control module.

[0013] Further, the sewage treatment tank further includes an overflow tank which is arranged inside the tank body. The overflow tank is located below the water outlet, and an overflow plate is arranged at the edge of the overflow tank. A serrated notch is arranged on the overflow plate.

[0014] The beneficial effects of the technical solution provided by the embodiment of the present utility model at least include: A sewage treatment tank includes a tank body, a first packing layer, a second packing layer and a control module. An inlet is opened at the bottom of the tank body, and the inlet is communicated with an inlet pipeline. An inlet control valve is arranged on the inlet pipeline. An outlet is opened at the top of the tank body, and the outlet is communicated with an outlet pipeline. An outlet control valve is arranged on the outlet pipeline. A packing port is opened on the side wall of the tank body; the first packing layer is arranged inside the tank body, and a vibration device is arranged on one side of the first packing layer; the second packing layer is arranged inside the tank body, and the second packing layer is located above the first packing layer; the control module is signal-connected to the inlet control valve and the outlet control valve. Thus, it can improve the sewage treatment efficiency under a high water purification load, fully remove harmful substances in the sewage, and thus avoid polluting the environment by discharging treated water.

[0015] Among them, the interior of the tank body adopts a double-layer packing layer design, enabling the sewage to pass through different types of packing in the first packing layer and the second packing layer respectively, removing different pollutants in the sewage; combined with the up-flow water inlet mode, it can avoid the insufficient reaction caused by the too-fast falling of the sewage due to gravity, thereby improving the efficiency of sewage treatment.

[0016] Among them, the water distributor is provided with a main water distribution pipe and water distribution branch pipes arranged in a fishbone shape as a whole, and a plurality of water distribution holes are opened on the water distribution branch pipes, making the water inlet more uniform and avoiding dead angles and short-circuit phenomena.

[0017] Among them, by setting a flushing pipeline, an air inlet pipeline and a reflux pipeline, the sewage treatment tank has multiple operation modes such as air-water flushing mode, cleaning mode, sewage treatment mode, etc., which can treat sewage more efficiently and avoid pipeline or packing blockage at the same time.

[0018] Among them, by setting an overflow plate with a serrated notch, the treated water can pass through the water outlet more smoothly and enter the outlet pipeline.

[0019] The above description is only an overview of the technical solution of this application. In order to be able to understand the technical means of this application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of this application more obvious and understandable, the following specifically illustrates the specific implementation manners of this application. Brief Description of the Drawings

[0020] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. Among them:

[0021] Figure 1 Shows a schematic cross-sectional structure diagram of a sewage treatment tank provided by an embodiment of the present invention;

[0022] Figure 2 Shows Figure 1 The structural schematic diagram of the sewage treatment tank of the shown embodiment;

[0023] Figure 3 Shows Figure 1 The structural schematic diagram of the water distributor of the shown embodiment;

[0024] Figure 4 Shows Figure 1 The structural schematic diagram of the vibration device of the shown embodiment.

[0025] Among them, Figures 1 to 4 The corresponding relationship between the reference numerals and the component names in the drawings is:

[0026] 1 Tank body, 11 Water inlet, 12 Water inlet pipe, 13 Water inlet control valve, 14 Water outlet, 15 Water outlet pipe, 16 Water outlet control valve, 17 Filler port, 18 Ultraviolet lamp, 19 Observation window, 2 First filler layer, 21 Vibration device, 211 First connecting piece, 212 Rotating motor, 213 Second connecting piece, 214 Cam guide rod mechanism, 22 First fixing plate, 23 Suspension rod, 24 Second fixing plate, 25 Suspended reaction chamber, 3 Second filler layer, 31 Third fixing plate, 32 Fixed bed reaction chamber, 41 Water quality sensor, 42 Intelligent control panel, 5 Water distributor, 51 Main water distribution pipe, 52 Water distribution branch pipe, 53 Water distribution holes, 6 Flushing pipe, 61 Flushing pump, 7 Air inlet pipe, 71 Aeration device, 8 Return pipe, 81 Return pump, 82 Automatic cleaning device, 9 Overflow tank, 91 Overflow plate, 92 Notch. Detailed implementation manners

[0027] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0028] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0029] Next, refer to Figures 1 to 4 Describe a sewage treatment tank provided according to some embodiments of the present invention.

[0030] As Figures 1 to 2 shown, a sewage treatment tank provided according to an embodiment of the present invention includes a tank body 1, a first filler layer 2, a second filler layer 3 and a control module. The tank body 1 is the main part of the sewage treatment tank and is used as a place for reaction during the sewage treatment process; a water inlet 11 is opened at the bottom of the tank body 1 for introducing untreated sewage; the water inlet 11 is connected to a water inlet pipe 12, and a water inlet control valve 13 is provided on the water inlet pipe 12 for controlling the rate of sewage entering the tank body 1; a water outlet 14 is opened at the top of the tank body 1 for discharging the treated water that has been treated, and the water outlet 14 is connected to a water outlet pipe 15, and a water outlet control valve 16 is provided on the water outlet pipe 15 for controlling the rate of the discharged treated water.

[0031] Preferably, the tank body 1 adopts a cylindrical structure with an arc-shaped bottom and is integrally made of stainless steel, which can save processing costs while ensuring structural stability; four support columns are arranged below the tank body 1 to support the tank body 1; a sewage outlet is also opened at the bottom of the tank body 1 for discharging sewage and fillers inside the tank body 1 when cleaning the tank body 1.

[0032] Preferably, an ultraviolet lamp 18 can also be arranged at a position close to the water outlet 14 on the water outlet pipe 15. The ultraviolet lamp 18 can disinfect the treated water discharged to avoid environmental pollution caused by residual bacteria in the treated water.

[0033] As Figure 2 shown, a filler port 17 is opened on the side wall of the tank body 1 for adding or removing fillers to the first filler layer 2 and the second filler layer 3. The first filler layer 2 is arranged inside the tank body 1 for the first filtration of sewage; a vibration device 21 is arranged on one side of the first filler layer 2 to drive the whole first filler layer 2 to vibrate horizontally, so as to mix the sewage to be treated with the fillers, ensure full contact, improve the sewage treatment efficiency and quality, and avoid blocking of the first filler layer 2 at the same time. The second filler layer 3 is arranged inside the tank body 1, and the second filler layer 3 is located above the first filler layer 2 for the second filtration of sewage. Thus, the sewage treatment efficiency can be improved under a high water purification load, and harmful substances in the sewage can be fully removed, thereby avoiding environmental pollution caused by the discharged treated water.

[0034] Specifically, the tank body 1 adopts a double-layer filler layer design. Sewage first passes through the water inlet pipe 12 and enters the tank body 1 from the water inlet 11 at the bottom of the tank body 1, and then passes through the first filler layer 2 and the second filler layer 3 in sequence, and reacts fully with the fillers. Since the tank body 1 adopts an up-flow water inlet mode, it can avoid the sewage from falling too fast to the bottom of the tank body 1 due to gravity, resulting in insufficient reaction. Finally, the treated water passes through the water outlet 14 at the top of the tank body 1 and is discharged from the water outlet pipe 15. Among them, the control module is signal-connected to the water inlet control valve 13 and the water outlet control valve 16, so that the water inlet control valve 13 can automatically control the rate of sewage entering the tank body 1, and the water outlet control valve 16 can automatically control the rate of treated water discharged from the tank body 1.

[0035] Preferably, an observation window 19 is also opened on the tank body 1 for observing the sewage treatment situation inside the tank body 1.

[0036] As Figure 1 shown, the first filler layer 2 includes a first fixing plate 22, a suspension rod 23 and a second fixing plate 24. The first fixing plate 22 is arranged horizontally, the first fixing plate 22 is connected to the tank body 1, a plurality of suspension rods 23 are connected below the first fixing plate 22, and the second fixing plate 24 is connected to the connecting rod, so that a suspended reaction chamber 25 is formed between the first fixing plate 22 and the second fixing plate 24.

[0037] Preferably, since the first packing layer 2 is relatively close to the water inlet 11 and has strong anti-clogging ability, the first packing layer 2 can adopt suspended sulfur-based fiber packing for sulfur autotrophic denitrification reaction to remove nitrogen and phosphorus elements in sewage. Suspended in the suspended reaction chamber 25 between the first fixing plate 22 and the second fixing plate 24, it can ensure the biological film hanging effect.

[0038] As Figure 1 shown, the second packing layer 3 includes a third fixing plate 31 and a fixed-bed reaction chamber 32. The third fixing plate 31 is arranged horizontally and is connected to the tank body 1. The fixed-bed reaction chamber 32 is clamped and fixed between the first fixing plate 22 and the third fixing plate 31, which can improve the stability of the second packing layer 3 in treating sewage.

[0039] Preferably, since the biofilm of the fixed-bed reaction chamber 32 is relatively thick, the second packing layer 3 can adopt block-shaped packing. The treated water filtered by the suspended sulfur-based fiber packing flows through the second packing layer 3, which can filter the suspended solids in the treated water while purifying the water and improve the water purification effect.

[0040] As Figure 2 shown, the control module includes a data processor, a water quality sensor 41 and an intelligent control panel 42. The water quality sensor 41 is arranged on the outlet pipe 15 and can detect the water quality of the treated water discharged from the tank body 1 to avoid discharging treated water with unqualified water quality and causing environmental pollution. The intelligent control panel 42 is arranged on the tank body 1. Among them, the water quality sensor 41, the intelligent control panel 42, the inlet control valve 13 and the outlet control valve 16 are signal-connected to the data processor, so that the detection result of the water quality sensor 41 can be returned to the intelligent control panel 42 for display, which is convenient for the staff to observe and operate.

[0041] Among them, the water quality sensor 41 can adopt a nitrogen ion sensor, a phosphorus ion sensor, a pH value measuring device, a dissolved oxygen measuring device, a nitrate concentration sensor or a phosphate concentration sensor, etc., to detect different pollutants in the treated water according to needs, so as to ensure the qualified water quality of the discharged treated water and avoid environmental pollution.

[0042] As Figure 3 shown, the sewage treatment tank further includes a water distributor 5. The water distributor 5 is arranged at the bottom of the tank body 1. The water distributor 5 includes a main water distribution pipe 51 and water distribution branch pipes 52. The main water distribution pipe 51 is communicated with the water inlet 11, and a plurality of water distribution branch pipes 52 are communicated with both sides of the main water distribution pipe 51, so that the whole water distributor 5 is arranged in a fishbone shape. A plurality of water distribution holes 53 are opened on the water distribution branch pipes 52, so that the water inlet is more uniform and the phenomena of dead angles and short circuits are avoided. Among them, the opening direction of the water distribution holes 53 is downward, which can prevent blockage.

[0043] AsFigure 4 As shown, the vibration device 21 includes a first connecting member 211, a second connecting member 213, and a cam guide rod mechanism 214. The first connecting member 211 is connected to the inner wall of the tank body 1. A rotary motor 212 is provided on the first connecting member 211, which is used to drive the vibration device 21 to drive the second fixing plate 24 to vibrate in the horizontal direction. The second connecting member 213 is connected to the second fixing plate 24, and the cam guide rod mechanism 214 is connected to the rotary motor 212 and the second connecting member 213. Among them, the cam guide rod mechanism 214 includes a cam and a guide rod that are connected to each other, and can convert the rotation of the rotary motor 212 into the vibration of the second fixing plate 24 in the horizontal direction to ensure that the second fixing plate 24 can vibrate with a uniform amplitude.

[0044] As Figure 1 shown, the rotary motor 212 is signal-connected to the control module, so that the vibration frequency and vibration intensity of the vibration device 21 can be adjusted through the intelligent control panel 42 to adapt to different sewage treatment requirements.

[0045] As Figure 2 shown, the sewage treatment tank further includes a flushing pipeline 6. The inlet of the flushing pipeline 6 is communicated with the outlet pipeline 15, and the outlet of the flushing pipeline 6 is communicated with the inlet pipeline 12. In the air-water flushing mode, the filtered upper-layer treated water can be returned to the inlet 11 for flushing the tank body 1, so as to remove the sludge and sediment between the fillers and prevent the fillers from being blocked and aged. A flushing pump 61 is provided on the flushing pipeline 6, which is used to pump the upper-layer treated water into the inlet pipeline 12. The flushing pump 61 is signal-connected to the control module, so that the control module can automatically control the rate of the treated water flowing back to the inlet 11 through the flushing pump 61.

[0046] As Figure 2 shown, the sewage treatment tank further includes an air inlet pipeline 7. The outlet of the air inlet pipeline 7 is communicated with the inlet pipeline 12, and an aeration device 71 is provided at the inlet of the air inlet pipeline 7. In the air-water flushing mode, gas can be introduced into the inlet 11 to clean the tank body 1, prevent the accumulation of dirt and sediment, and ensure the smooth sewage treatment cycle; the aeration device 71 is signal-connected to the control module, so that the control module can automatically control the power of the gas introduced into the inlet 11 through the aeration device 71.

[0047] It can be understood that the water distributor 5 can also be used for air intake in the air-water flushing mode, so as to reduce the devices for air intake inside the tank body 1 and simplify the structure.

[0048] As Figure 2As shown in the figure, the sewage treatment tank further includes a reflux pipeline 8. The inlet of the reflux pipeline 8 is connected to the outlet pipeline 15, and the outlet of the reflux pipeline 8 is connected to the inlet pipeline 12, which is used to circulate the treated water on the upper layer of the tank body 1 to the water inlet 11 and enter the tank body 1 for secondary treatment. A reflux pump 81 is arranged on the reflux pipeline 8, which is used to pump the upper layer of treated water into the reflux pipeline 8; an automatic cleaning device 82 is also arranged on the reflux pipeline 8, which is used to clean the tank body 1 and the reflux pipeline 8. Among them, the reflux pump 81 is signal-connected to the control module, so that the control module can automatically control the rate of the treated water flowing back to the water inlet 11 through the reflux pump 81; the automatic cleaning device 82 is signal-connected to the control module, so that the control module can automatically control the start or stop of the automatic cleaning device 82.

[0049] Specifically, part of the treated water after passing through the first packing layer 2 and the second packing layer 3 is discharged from the tank body 1 through the outlet pipeline 15, and part is pumped back to the reflux pipeline 8 by the reflux pump 81 and re-enters the tank body 1 for secondary treatment to further remove residual harmful pollutants. The treated water after multiple cycles of treatment is discharged through the outlet pipeline 15 after reaching the standard.

[0050] Preferably, a water quality sensor 41 can also be arranged on the reflux pipeline 8, which is used to monitor the water quality in real time and judge whether the treated water needs to be refluxed again. The water quality sensor 41 is also connected to the control module to facilitate data analysis and processing through the control module.

[0051] It can be understood that when the refluxed treated water passes through the first packing layer 2 and the second packing layer 3, it can simultaneously wash the microorganisms and impurities on the surface of the packing, reduce the risk of packing blockage, and extend the service life of the packing.

[0052] As Figure 1 shown in the figure, the sewage treatment tank further includes an overflow tank 9. The overflow tank 9 is arranged inside the tank body 1 and is located below the water outlet 14, so that the treated water can smoothly pass through the water outlet 14 and enter the outlet pipeline 15; an overflow plate 91 is arranged on the edge of the overflow tank 9, and a serrated notch 92 is arranged on the overflow plate 91. The serrated notch 92 can further make the flow of the treated water smoother.

[0053] In the description of the present utility model, the term "a plurality of" refers to two or more, unless otherwise clearly defined. The orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model; terms such as "connection", "installation", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0054] In the description of the present utility model, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In the present utility model, the schematic expressions of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0055] The above is only the preferred embodiment of the present utility model and is not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sewage treatment tank, characterized in that: include: A tank body (1), wherein a water inlet (11) is provided at the bottom of the tank body (1), the water inlet (11) is connected to a water inlet pipe (12), a water inlet control valve (13) is provided on the water inlet pipe (12), a water outlet (14) is provided at the top of the tank body (1), the water outlet (14) is connected to a water outlet pipe (15), a water outlet control valve (16) is provided on the water outlet pipe (15), and a filling port (17) is provided on the side wall of the tank body (1); A first packing layer (2), the first packing layer (2) being arranged inside the tank body (1), and a vibration device (21) being arranged on one side of the first packing layer (2); A second packing layer (3), the second packing layer (3) being arranged inside the tank body (1), the second packing layer (3) being located above the first packing layer (2); A control module, wherein the control module signal is connected to the water inlet control valve (13) and the water outlet control valve (16).

2. The sewage treatment tank according to claim 1, characterized in that: The first packing layer (2) comprises: A first fixing plate (22), the first fixing plate (22) being arranged in a horizontal direction, and the first fixing plate (22) being connected to the tank body (1); A hanging rod (23), wherein a plurality of the hanging rods (23) are connected below the first fixing plate (22); A second fixing plate (24), wherein the second fixing plate (24) is connected to the hanging rod so that a hanging reaction chamber (25) is formed between the first fixing plate (22) and the second fixing plate (24).

3. The sewage treatment tank according to claim 2, characterized in that: The second packing layer (3) comprises: A third fixing plate (31), the third fixing plate (31) being arranged in a horizontal direction and connected to the tank body (1); A fixed bed reaction chamber (32), wherein the fixed bed reaction chamber (32) is arranged between the first fixed plate (22) and the third fixed plate (31).

4. The sewage treatment tank according to claim 1, characterized in that: The control module comprises: Data processors; A water quality sensor (41), the water quality sensor (41) being arranged on the water outlet pipe (15); An intelligent control panel (42), wherein the intelligent control panel (42) is arranged on the tank body (1); The water quality sensor (41), the intelligent control panel (42), the water inlet control valve (13) and the water outlet control valve (16) are signal-connected to the data processor.

5. The sewage treatment tank according to claim 1, characterized in that: Also includes: A water distributor (5), the water distributor (5) being arranged at the bottom of the tank body (1), the water distributor (5) comprising a main water distribution pipe (51) and a water distribution branch pipe (52), the main water distribution pipe (51) being connected to the water inlet (11), a plurality of water distribution branch pipes (52) being connected to both sides of the main water distribution pipe (51), and a plurality of water distribution holes (53) being provided on the water distribution branch pipe (52).

6. The sewage treatment tank according to claim 2, characterized in that: The vibration device (21) comprises: A first connecting member (211), the first connecting member (211) being connected to the inner wall of the tank body (1), and a rotating motor (212) being provided on the first connecting member (211); A second connecting member (213), the second connecting member (213) being connected to the second fixing plate (24); A cam guide rod mechanism (214), wherein the cam guide rod mechanism (214) is connected to the rotary motor (212) and the second connecting member (213); Wherein, the rotary motor (212) is signal-connected to the control module.

7. The sewage treatment tank according to claim 1, characterized in that: Also includes: A flushing pipe (6), wherein the inlet of the flushing pipe (6) is connected to the water outlet pipe (15), the outlet of the flushing pipe (6) is connected to the water inlet pipe (12), and a flushing pump (61) is provided on the flushing pipe (6); Wherein, the flushing pump (61) is signal-connected to the control module.

8. The sewage treatment tank according to claim 1, characterized in that: Also includes: An air intake pipe (7), the outlet of the air intake pipe (7) being connected to the water intake pipe (12), and the inlet of the air intake pipe (7) being provided with an aeration device (71); Wherein, the aeration device (71) is signal-connected to the control module.

9. The sewage treatment tank according to claim 1, characterized in that: Also includes: a return pipe (8), wherein the inlet of the return pipe (8) is connected to the water outlet pipe (15), the outlet of the return pipe (8) is connected to the water inlet pipe (12), and the return pipe (8) is provided with a return pump (81) and an automatic cleaning device (82); Wherein, the reflux pump (81) and the automatic cleaning device (82) are connected to the control module by signals.

10. The sewage treatment tank according to claim 1, characterized in that: Also includes: An overflow trough (9), wherein the overflow trough (9) is arranged inside the tank body (1), the overflow trough (9) is located below the water outlet (14), an overflow plate (91) is arranged at the edge of the overflow trough (9), and a sawtooth-shaped notch (92) is arranged on the overflow plate (91).

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