Sedimentation tank with sludge discharge structure

Abstract

The utility model provides a sedimentation tank with a sludge discharge structure, and relates to the technical field of sewage treatment related equipment, the sedimentation tank comprises a sedimentation tank body, a sludge scraping mechanism and a plurality of triangular prism blocks, the sedimentation tank body is of a cuboid structure and is used for accommodating sludge water, and the sedimentation tank body is provided with a track; the sludge scraping mechanism is in sliding connection with the track in the first direction and comprises a plurality of groups of sludge scraping plates, and the sludge scraping plates are used for scraping sludge settled at the bottom of the settling pond body; each triangular prism-shaped block is arranged at the bottom of the sedimentation tank body along the first direction, and the plurality of triangular prism-shaped blocks are distributed among the corresponding mud scraping plates at intervals along the second direction; the first direction is perpendicular to the second direction. The technical problems that in the prior art, when sludge at the bottom of the sedimentation tank is discharged, due to the limitation of equipment operation and the relation between the equipment and a tank body supporting structure, the sludge at the two ends of the tank body is difficult to remove, and the sludge between the adjacent sludge scraping plates cannot be removed are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of water supply treatment and sewage treatment equipment, and in particular to a sedimentation tank with a sludge discharge structure. Background Technology

[0002] Sedimentation tanks are structures used in water supply and wastewater treatment to achieve solid-liquid separation through gravity settling. Their core function is to remove suspended particles, sludge, and other sedimented pollutants from water through physical sedimentation, thereby purifying the water quality.

[0003] After gravity sedimentation during sludge-water separation, the separated sludge settles at the bottom of the sedimentation tank. During operation, this sludge needs to be removed from the bottom to prevent fermentation and gas generation, which can cause pollutants to rise and affect the sludge-water separation efficiency, thus impacting the quality of the effluent. Furthermore, long-term sludge accumulation can lead to caking, increasing the difficulty of tank maintenance. Therefore, timely removal and treatment of the sludge from the bottom of the tank are essential.

[0004] Existing sludge cleaning equipment for sedimentation tank bottoms often uses scrapers to scrape off the sludge at the bottom of the sedimentation tank, and then uses a suction pipe to suck it out. However, due to the limitations of the equipment operation, the existing scrapers cause the following problems during the scraping process: (1) In order to avoid the supporting structure (support pier) in the tank, the sludge at the bottom of the sedimentation tank corresponding to the gap between the scrapers is easily silted up because the scrapers cannot reach it; (2) Sludge is prone to accumulate in the areas near the tank wall at both ends of the tank due to the stroke of the scraper and the dead zone of the tank structure. Utility Model Content

[0005] The purpose of this utility model is to provide a sedimentation tank with a sludge discharge structure to alleviate the technical problems existing in the prior art, such as the difficulty in removing sludge from both ends of the tank and the inability to remove sludge between adjacent scrapers when discharging sludge from the bottom of the sedimentation tank due to the limitations of equipment operation and the relationship between the equipment and the tank support structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] In the first aspect, this utility model provides a sedimentation tank with a sludge discharge structure, including a sedimentation tank body, a sludge scraping mechanism and multiple triangular prism blocks. The sedimentation tank body is designed as a cuboid structure and is used to settle and remove suspended solids in the water. The sedimentation tank body is also provided with a track.

[0008] The sludge scraping mechanism is slidably connected to the track along the first direction, and the sludge scraping mechanism includes multiple sets of sludge scraping plates, which are used to scrape off the sludge that has been separated by mud and water and settled by gravity at the bottom of the sedimentation tank body.

[0009] Each of the triangular prism blocks is disposed at the bottom of the sedimentation tank body along the first direction, and multiple triangular prism blocks are distributed at intervals between the corresponding sludge scrapers along the second direction.

[0010] The first direction is perpendicular to the second direction.

[0011] Furthermore, the sedimentation tank with the sludge discharge structure also includes a sludge discharge trough, which is located on the outside of the sedimentation tank body and connected to the sedimentation tank body.

[0012] The sludge scraping mechanism is used to discharge sludge from the sedimentation tank into the sludge discharge trough.

[0013] Furthermore, a collection trough is provided at the bottom of the sedimentation tank body along the second direction, and there are two sets of collection troughs, with the two sets of collection troughs respectively located at both ends of the bottom of the sedimentation tank body. The collection troughs are used to collect the sludge scraped up by the sludge scraping mechanism.

[0014] Furthermore, the sedimentation tank with sludge discharge structure also includes a sludge discharge pipe, which is arranged in the collection tank along the second direction and has multiple sludge discharge holes.

[0015] The end of the sludge discharge pipe is connected to the corresponding sludge discharge trough.

[0016] Furthermore, the sludge scraping mechanism includes a support frame, a sludge suction assembly, and a sludge scraping assembly. The support frame is distributed along the second direction and has a driving member at its end. The support frame is slidably connected to the track along the first direction via the driving member.

[0017] The mud scraping assembly is provided in multiple sets, and the multiple sets of mud scraping assemblies are distributed at intervals along the second direction and are all connected to the support frame, and the triangular prism block is provided between adjacent mud scraping assemblies;

[0018] The mud suction assembly is connected to the support frame, and one end of the mud suction assembly is connected to the mud scraping assembly, while the other end is connected to the mud discharge trough.

[0019] Furthermore, the sludge scraping assembly includes a connecting frame and a scraper blade, with one end of the connecting frame connected to the support frame and the other end connected to the scraper blade;

[0020] The sludge scraper is used to scrape off the sludge at the bottom of the sedimentation tank.

[0021] Furthermore, each of the aforementioned scraping assemblies is provided with at least two scraping blades, which are spaced apart along the second direction and connected to the connecting frame;

[0022] The suction end of the suction assembly is positioned between the two scraper blades.

[0023] Furthermore, the sludge suction assembly includes a pump body, a discharge pipe, and a suction pipe. The pump body is connected to the support frame, and the input end of the pump body is connected to the suction pipe, while the output end of the pump body is connected to the discharge pipe.

[0024] The end of the suction pipe away from the pump body is connected to the connecting frame and is located between the two scraper blades;

[0025] The end of the discharge pipe furthest from the pump body is located inside the sludge discharge trough.

[0026] Furthermore, the sedimentation tank with sludge discharge structure also includes a water collection component, which is located within the sedimentation tank body and is used to discharge the clear water located above the sedimentation tank body after the sludge and water are separated.

[0027] Furthermore, the water collection assembly includes a water collection trough and multiple support blocks, the water collection trough being connected to the sedimentation tank body via the multiple support blocks; the multiple support blocks are spaced apart along the first direction, and the triangular prism blocks are arranged between adjacent support blocks along the first direction.

[0028] This utility model can achieve the following beneficial effects:

[0029] In a first aspect, this utility model provides a sedimentation tank with a sludge removal structure, including a sedimentation tank body, a sludge scraping mechanism, and multiple triangular prism blocks. The sedimentation tank body is designed as a cuboid structure and is used for sedimentation to remove suspended solids from the water. The sedimentation tank body is equipped with a track. The sludge scraping mechanism is slidably connected to the track along a first direction. The sludge scraping mechanism includes multiple sets of scraper blades, which are used to scrape off the sludge that has been separated from the water and settled by gravity at the bottom of the sedimentation tank body. Each triangular prism block is disposed at the bottom of the sedimentation tank body along the first direction, and multiple triangular prism blocks are spaced apart between the corresponding scraper blades along a second direction. The first direction is perpendicular to the second direction.

[0030] In this invention, the sedimentation tank body is a rectangular sedimentation tank structure, and the sludge scraping mechanism is slidably arranged on the track laid on the sedimentation tank body along the second direction, while the track is distributed along the first direction so that the sludge scraping mechanism can move along the first direction. During the movement, the sludge is separated from the water and settled by gravity at the bottom of the sedimentation tank body. There is a gap between each set of scraper blades. This gap easily accumulates sludge, making it impossible for the scraper blades to scrape it off. As a result, the organic matter in the sludge ferments in the tank, affecting the water quality. Therefore, triangular prism blocks are set between two adjacent sets of scraper blades so that the sludge slides toward the corresponding scraper blades.

[0031] Compared with the prior art, the sedimentation tank with sludge discharge structure provided by this utility model has multiple sets of sludge scraping mechanisms to scrape off the sludge that has been separated by mud and water and settled by gravity at the bottom of the sedimentation tank body. Triangular prism blocks are set between adjacent sludge scraping mechanisms to prevent sludge from accumulating between two sets of sludge scraping plates.

[0032] In summary, this utility model at least alleviates the technical problems existing in the prior art where, when discharging sludge from the bottom of a sedimentation tank, the limitations of equipment operation and its relationship with the tank's supporting structure make it difficult to remove sludge from both ends of the tank and between adjacent scraper blades. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 A top view of a sedimentation tank with a sludge discharge structure provided for an embodiment of this utility model;

[0035] Figure 2 for Figure 1 Enlarged schematic diagram of part A in the diagram;

[0036] Figure 3 A side view of the sedimentation tank body with a sludge discharge structure provided in an embodiment of this utility model;

[0037] Figure 4 for Figure 3 Enlarged schematic diagram of section B in the diagram;

[0038] Figure 5 A side view of a sedimentation tank with a sludge discharge structure provided for an embodiment of this utility model;

[0039] Figure 6 for Figure 5 Enlarged schematic diagram of section C in the diagram.

[0040] Icons: 1-Sedimentation tank body; 2-Sludge scraping mechanism; 21-Support frame; 22-Sludge suction assembly; 221-Pump body; 222-Discharge pipe; 223-Suction pipe; 23-Connecting frame; 24-Sludge scraper; 3-Collection trough; 4-Triangular prism block; 5-Sludge discharge trough; 6-Sludge discharge pipe; 61-Sludge discharge hole; 7-Water collection assembly; 71-Water collection trough; 72-Support pier. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] In the description of this utility model, it should be noted that the terms "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0046] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0048] Example 1

[0049] This embodiment provides a sedimentation tank with a sludge discharge structure, as shown in the following example. Figure 1 and Figure 5 The sedimentation tank with a sludge removal structure includes a sedimentation tank body 1, a sludge scraping mechanism 2, and multiple triangular prism blocks 4. The sedimentation tank body 1 is a cuboid structure used for sedimentation to remove suspended solids from the water, and the sedimentation tank body 1 is equipped with a track. The sludge scraping mechanism 2 is slidably connected to the track along a first direction, and the sludge scraping mechanism 2 includes multiple sets of scraper blades 24, which are used to scrape off the sludge that has been separated by mud-water separation and settled by gravity at the bottom of the sedimentation tank body 1. Each triangular prism block 4 is set at the bottom of the sedimentation tank body 1 along the first direction, and multiple triangular prism blocks 4 are spaced apart between the corresponding scraper blades 24 along a second direction. The first direction is perpendicular to the second direction.

[0050] This utility model embodiment at least alleviates the technical problems existing in the prior art where, when discharging sludge from the bottom of a sedimentation tank, the sludge at both ends of the tank is difficult to remove due to the equipment structure, and the sludge cannot be removed between adjacent scraper blades 24.

[0051] In this embodiment of the present invention, the sedimentation tank body 1 is a cuboid sedimentation tank structure, and the sludge scraping mechanism is slidably arranged on the track laid on the sedimentation tank body 1 along the second direction, while the track is distributed along the first direction so that the sludge scraping mechanism can move along the first direction. In the process of moving, the sludge scraped off the sludge that has been separated by mud and water and settled by gravity at the bottom of the sedimentation tank body 1 by the sludge scraping plate 24. There is a gap between each set of sludge scraping plates 24. This gap is easy to accumulate sludge, so that the sludge scraping plate 24 cannot scrape it off. As a result, the organic matter in the sludge ferments in the tank, affecting the water quality in the tank. Therefore, triangular prism blocks 4 are set between two adjacent sets of sludge scraping plates 24 so that the sludge slides to the corresponding sludge scraping plates 24 respectively.

[0052] Compared with the prior art, the sedimentation tank with sludge discharge structure provided in this embodiment of the utility model has multiple sets of sludge scraping mechanisms to scrape off the sludge that has been separated by mud and water and settled by gravity at the bottom of the sedimentation tank body 1, and triangular prism blocks 4 are set between adjacent sludge scraping mechanisms so that sludge does not accumulate between the two sets of sludge scraping plates 24.

[0053] In an optional implementation of this embodiment, refer to Figure 1 and Figure 6 The sedimentation tank with sludge discharge structure also includes a sludge discharge trough 5, which is located on the outside of the sedimentation tank body 1 and connected to the sedimentation tank body 1; the sludge scraping mechanism 2 is used to discharge the sludge from the sedimentation tank to the sludge discharge trough 5.

[0054] Specifically: the sludge discharge trough 5 is located on the outside of the sedimentation tank body 1; in use, the sludge is discharged to the sludge discharge trough 5 by the sludge scraping mechanism 2 and the sewage discharge component, and then the sludge is discharged away through the sludge discharge trough 5. It should be noted that there are two sets of sludge discharge trough 5, and the two sets of sludge discharge trough 5 are distributed relative to each other.

[0055] Furthermore, referring to Figure 2 and Figure 3 The sedimentation tank body 1 has a collection trough 3 at the bottom along the second direction, and there are two sets of collection troughs 3. The two sets of collection troughs 3 are respectively located at both ends of the bottom of the sedimentation tank body 1. The collection troughs 3 are used to collect the sludge scraped up by the sludge scraping mechanism 2.

[0056] Specifically: Two sets of collection tanks 3 are respectively located at both ends of the bottom of the sedimentation tank body 1, and the collection tanks 3 are perpendicular to the sludge discharge tank 5. The collection tanks 3 are used to collect the sludge scraped by the sludge scraping mechanism 2, and discharge the sludge into the sludge discharge tank 5 through the sludge discharge pipe 6, etc.

[0057] Furthermore, referring to Figure 2 and Figure 4 The sedimentation tank with sludge discharge structure also includes a sludge discharge pipe 6, which is arranged in the collection tank 3 along the second direction, and the sludge discharge pipe 6 has multiple sludge discharge holes 61; the end of the sludge discharge pipe 6 is connected to the corresponding sludge discharge tank 5.

[0058] Specifically: the sludge discharge pipe 6 is installed in the collection tank 3 along the second direction, and the sludge discharge pipe 6 has multiple sludge discharge holes 61; in use, the sludge at the bottom is discharged from each sludge discharge hole 61 into the sludge discharge pipe 6 by water pressure, and then the sludge is discharged into the sludge discharge tank 5 through the sludge discharge pipe 6.

[0059] In an optional implementation of this embodiment, refer to Figure 6The sludge scraping mechanism 2 includes a support frame 21, a sludge suction assembly 22, and a sludge scraping assembly. The support frame 21 is distributed along a second direction and has a driving member at its end. The support frame 21 is slidably connected to the track along a first direction through the driving member. Multiple sets of sludge scraping assemblies are provided. The multiple sets of sludge scraping assemblies are distributed at intervals along the second direction and are all connected to the support frame 21. A triangular prism block 4 is provided between adjacent sludge scraping assemblies. The sludge suction assembly 22 is connected to the support frame 21, and one end of the sludge suction assembly 22 is connected to the sludge scraping assembly, and the other end is connected to the sludge discharge trough 5.

[0060] Specifically: the support frame 21 is distributed along the second direction and its end is provided with a driving member, and this driving member is preferably a motor drive wheel, so that it drives the support frame 21 to move along the track. Multiple sets of sludge scraping components are provided at intervals along the extension direction of the support frame 21. The multiple sets of sludge scraping components are used to scrape off the sludge located at the bottom of the sedimentation tank body 1. After the sludge is scraped up, it is sucked out by the sludge suction component 22.

[0061] Furthermore, referring to Figure 6 The sludge scraping assembly includes a connecting frame 23 and a scraper 24. One end of the connecting frame 23 is connected to the support frame 21, and the other end is connected to the scraper 24. The scraper 24 is used to scrape off the sludge at the bottom of the sedimentation tank body 1.

[0062] Specifically: one end of the connecting frame 23 is connected to the support frame 21, and the other end is vertically set and connected to a sludge scraper 24. The sludge scraper 24 is preferably distributed perpendicular to the bottom of the pool and scrapes off the sludge at the bottom of the pool during the movement.

[0063] Furthermore, each set of sludge scraping components is provided with at least two sludge scraping blades, which are spaced apart along the second direction and connected to the connecting frame; the suction end of the sludge suction component 22 is disposed between the two sludge scraping blades 24.

[0064] Specifically: The suction end of the sludge suction assembly 22 is located between the two scraper blades 24. In use, after the scraper blades 24 scrape up the sludge from the bottom of the pool, the sludge is sucked up and discharged by the sludge suction assembly 22.

[0065] Furthermore, referring to Figure 6 The sludge suction assembly 22 includes a pump body 221, a discharge pipe 222, and a suction pipe 223. The pump body 221 is connected to the support frame 21, and the input end of the pump body 221 is connected to the suction pipe 223, while the output end of the pump body 221 is connected to the discharge pipe 222. The end of the suction pipe 223 away from the pump body 221 is connected to the connecting frame 23 and is located between two scraper blades 24. The end of the discharge pipe 222 away from the pump body 221 is located in the sludge discharge trough 5.

[0066] Specifically: One end of the pump body 221 sucks in the scraped sludge through the suction pipe 223, and then discharges the sludge into the sludge discharge trough 5 through the discharge pipe 222, so as to achieve the discharge of sludge.

[0067] In an optional implementation of this embodiment, refer to Figure 3 and Figure 6 The sedimentation tank with sludge discharge structure also includes a water collection component 7, which is located inside the sedimentation tank body 1 and is used to discharge the clear water located above the sedimentation tank body 1 after the sludge and water are separated.

[0068] Specifically: the water collection component 7 is installed inside the sedimentation tank body 1, and the water collection component 7 is connected to an external clean water collection device so that the clean water above the sludge can be discharged from the water collection component 7 after the sludge settles.

[0069] Furthermore, referring to Figure 3 and Figure 6 The water collection component 7 includes a water collection tank 71 and multiple support blocks 72. The water collection tank 71 is connected to the sedimentation tank body 1 through the multiple support blocks 72. The multiple support blocks 72 are distributed at intervals along the first direction, and triangular prism blocks 4 are arranged between adjacent support blocks 72 along the first direction.

[0070] Specifically: There are multiple water collection tanks 71, and each water collection tank 71 is supported by multiple support piers 72. The multiple support piers 72 are distributed at intervals, and a triangular prism block 4 is provided at each gap position to avoid the inconvenience of cleaning sludge in the gap position of the support piers 72.

[0071] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to mutually. The above embodiments in this specification are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A sedimentation tank having a sludge discharge structure, characterized by comprising: The application relates to a sedimentation tank, which comprises a sedimentation tank body (1), a mud scraping mechanism (2) and a plurality of triangular columnar blocks (4), the sedimentation tank body (1) is provided in a cuboid structure and is used for removing suspended matters in water, and the sedimentation tank body (1) is provided with a track; The mud scraping mechanism (2) is slidably connected with the track along a first direction, and the mud scraping mechanism (2) comprises a plurality of groups of mud scraping plates (24), the mud scraping plates (24) are used for scraping off sludge on the bottom of the sedimentation tank body (1) through mud-water separation and gravity sedimentation; Each triangular columnar block (4) is arranged on the bottom of the sedimentation tank body (1) along the first direction, and a plurality of triangular columnar blocks (4) are spaced apart along a second direction between corresponding mud scraping plates (24); The first direction is perpendicular to the second direction.

2. The sedimentation tank with a sludge discharge structure according to claim 1, characterized in that, The application further comprises a sludge discharge groove (5) arranged outside the sedimentation tank body (1) and connected with the sedimentation tank body (1); The mud scraping mechanism (2) is used for discharging sludge in the sedimentation tank to the sludge discharge groove (5).

3. The sedimentation tank with a sludge discharge structure according to claim 2, characterized in that, The bottom of the sedimentation tank body (1) is provided with collecting grooves (3) along the second direction, the collecting grooves (3) are arranged at two ends of the bottom of the sedimentation tank body (1) and are used for collecting sludge scraped by the mud scraping mechanism (2).

4. The sedimentation tank with a sludge discharge structure according to claim 3, characterized in that, The application further comprises a sludge discharge pipe (6) arranged in the collecting groove (3) along the second direction, and the sludge discharge pipe (6) is provided with a plurality of sludge discharge holes (61); The end of the sludge discharge pipe (6) is connected with the corresponding sludge discharge groove (5).

5. The sedimentation tank with sludge discharge structure according to claim 2, characterized in that, The mud scraping mechanism (2) comprises a support frame (21), a sludge suction assembly (22) and a mud scraping assembly, the support frame (21) is arranged along the second direction and is provided with a driving member at the end, and the support frame (21) is slidably connected with the track along the first direction through the driving member; The mud scraping assembly is provided with a plurality of groups of mud scraping assemblies, the groups of mud scraping assemblies are spaced apart along the second direction and are connected with the support frame (21), and the triangular columnar blocks (4) are arranged between adjacent groups of mud scraping assemblies; The sludge suction assembly (22) is connected with the support frame (21), one end of the sludge suction assembly (22) is connected with the mud scraping assembly, and the other end is connected with the sludge discharge groove (5).

6. The sedimentation tank with a sludge discharge structure according to claim 5, characterized in that, The mud scraping assembly comprises a connecting frame (23) and a mud scraping plate (24), one end of the connecting frame (23) is connected with the support frame (21), and the other end is connected with the mud scraping plate (24); The mud scraping plate (24) is used for scraping sludge on the bottom of the sedimentation tank body (1).

7. The sedimentation tank with a sludge discharge structure according to claim 6, characterized in that, Each group of mud scraping assemblies is provided with at least two mud scraping plates (24), the mud scraping plates (24) are spaced apart along the second direction and are connected with the connecting frame (23); The sludge suction end of the sludge suction assembly (22) is arranged between the two mud scraping plates (24).

8. The sedimentation tank with a sludge discharge structure according to claim 7, characterized in that, The suction assembly (22) comprises a pump body (221), a discharge pipe (222) and a suction pipe (223), the pump body (221) is connected with the support frame (21), the input end of the pump body (221) is connected with the suction pipe (223), and the output end of the pump body (221) is connected with the discharge pipe (222); The end of the suction pipe (223) away from the pump body (221) is connected with the connecting frame (23) and is arranged between the two mud scraping plates (24); The end of the discharge pipe (222) away from the pump body (221) is arranged in the mud discharge groove (5).

9. The sedimentation tank with sludge discharge structure according to claim 1, characterized in that, Further comprising a water collecting assembly (7), the water collecting assembly (7) is arranged in the sedimentation tank body (1), and the water collecting assembly (7) is used for discharging clean water above the sedimentation tank body (1) after separating the mud and water.

10. The sedimentation tank with a sludge discharge structure according to claim 9, characterized in that, The water collecting assembly (7) comprises a water collecting groove (71) and a plurality of support piers (72), the water collecting groove (71) is connected with the sedimentation tank body (1) through the plurality of support piers (72); The plurality of support piers (72) are distributed along the first direction, and the triangular columnar blocks (4) are arranged along the first direction between adjacent support piers (72).

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