Inclined tube type sedimentation tank easy to clean

Abstract

The utility model discloses an easy-to-clean inclined tube type sedimentation tank which comprises a sedimentation tank body, a plurality of inclined tube units are arranged in the sedimentation tank body, a movable inner tube is connected in each inclined tube unit in a sliding mode, and the movable inner tubes can move in the inclined tube units in the axial direction. The movable inner pipe can be pulled out of the inclined pipe unit in the axial direction, and the outer wall of the movable inner pipe is attached to the inner wall of the inclined pipe unit. The movable inner pipe is connected into the inclined pipe unit, the movable inner pipe and the inclined pipe unit are each of a pipe structure, the sedimentation tank can conduct sedimentation work through the inclined pipe unit and can also conduct sedimentation work through the movable inner pipe, the movable inner pipe can be pulled out relative to the inclined pipe unit, and therefore in the using process, the movable inner pipe can be pulled out relative to the inclined pipe unit; the cleaning efficiency of the interior of the inclined pipe can be improved, cleaning is convenient, the cleaning time is saved, and the production efficiency cannot be greatly interfered.

Description

Technical Field

[0001] This utility model relates to the field of sedimentation tank technology, and in particular to an easy-to-clean inclined tube sedimentation tank. Background Technology

[0002] In urban wastewater treatment, sedimentation tanks are a commonly used water treatment method for solid-liquid separation. Inclined tube sedimentation tanks, which add inclined tube layers to the sedimentation tank, form multiple shallow sedimentation layers through parallel inclined pipes, effectively improving the treatment efficiency according to the shallow tank theory. However, in existing inclined tube sedimentation tanks, suspended particles tend to settle along the inclined tube walls and adhere to the lower layer, affecting water flow and reducing treatment efficiency over time. Therefore, frequent cleaning of the inclined tubes is necessary. Current treatment methods typically require lowering the water level first and then using a high-pressure water gun for thorough cleaning, which is time-consuming, labor-intensive, and results in long downtime, affecting the normal operation of the sedimentation tank.

[0003] For example, publication number "CN119038798A" discloses "a wastewater treatment device for sulfur autotrophic denitrification coupled with coagulation and sedimentation for nitrogen and phosphorus removal." The device's structure includes a sulfur autotrophic denitrification tank, a coagulation tank, and a sedimentation tank connected in sequence. The sulfur autotrophic denitrification tank has an inner cylinder with a flow promoter at its bottom. The tank also has a support plate dividing it into upper and lower spaces. The inner cylinder passes through the support plate. The upper space of the support plate is filled with suspended sulfur-iron composite biological carriers. The support plate has holes with a diameter smaller than the particle size of the suspended sulfur-iron composite biological carriers. An overflow port is located at the bottom of the side of the sulfur autotrophic denitrification tank. However, in practical applications, suspended particles tend to settle along the inclined tube walls and easily adhere to the lower layer of the tube, making subsequent cleaning difficult and affecting production efficiency. Summary of the Invention

[0004] In view of the problem that the existing technology mentioned in the background is difficult to clean, this utility model provides an easy-to-clean inclined tube sedimentation tank, which can improve the cleaning efficiency of the inside of the inclined tube, facilitate cleaning, save cleaning time, and will not significantly interfere with production efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution.

[0006] An easy-to-clean inclined tube sedimentation tank includes a sedimentation tank containing several inclined tube units. Each inclined tube unit has a sliding inner tube connected to it. The sliding inner tube can be displaced axially within the inclined tube unit and can be pulled out axially from the inclined tube unit. The outer wall of the sliding inner tube is in contact with the inner wall of the inclined tube unit. Placing inclined tube units in the sedimentation tank increases the sedimentation area, thus ensuring sedimentation efficiency. Compared to straight tubes, inclined tube units have higher sedimentation efficiency and are less prone to clogging, as sediment only adheres to the lower layer. However, over time, sediment can accumulate on the lower layer, obstructing water flow. Therefore, the inclined tube units need to be tilted periodically to maintain sedimentation efficiency. Furthermore, during cleaning, the water in the sedimentation tank needs to be drained to clean the inclined tube units, further impacting sedimentation efficiency. The sedimentation tank also needs to be refilled afterward, during which production cannot continue.

[0007] Therefore, to address the aforementioned issues, this application incorporates a movable inner tube connected inside the inclined tube unit. Both the movable inner tube and the inclined tube unit are tubular structures. Thus, the sedimentation tank can perform sedimentation via either the inclined tube unit or the movable inner tube. Since the movable inner tube can be pulled out relative to the inclined tube unit, during use, the movable inner tube is first connected to the inclined tube unit for sedimentation. The sedimentation tank then performs sedimentation via the movable inner tube, with the sediment settling at the lower layer of the movable inner tube. When cleaning the sediment is required, the movable inner tube is pulled out and cleaned using a high-pressure water gun or specialized tools. At this point, the sedimentation tank... Settling is carried out through the inclined tube unit, thus not affecting production efficiency. After the moving inner tube is cleaned, it is connected to the inclined tube unit. During the connection process, the moving inner tube scrapes off the sediment inside the inclined tube unit, thereby cleaning the inclined tube unit. Afterwards, the sedimentation tank is settled again through the moving inner tube. Through the above sedimentation operation, the cleaning efficiency can be improved without affecting the operation of the sedimentation tank. Another way to use the moving inner tube is to directly clean and scrape off the sediment inside the inclined tube unit through the moving inner tube, and the sedimentation tank only uses the inclined tube unit for sedimentation.

[0008] Preferably, each of the movable inner tubes includes a connecting section located inside the inclined tube unit, and the movable inner tube includes a pull-out section located outside the inclined tube unit. The movable inner tube is configured into two parts: a pull-out section outside the inclined tube unit and a connecting section inside the inclined tube unit. The connecting section inside the inclined tube unit ensures a connection between the inclined tube unit and the movable inner tube, while the pull-out section allows workers to easily pull the movable inner tube out of the inclined tube unit, improving work efficiency.

[0009] Preferably, each of the movable inner tubes has a detachable connecting rod at its pull-out section, and the connecting rod can drive each movable inner tube to pull out synchronously. Connecting each movable inner tube to the connecting rod allows the connecting rod to pull out multiple movable inner tubes at the same time, thereby improving work efficiency.

[0010] Preferably, the pull-out section is provided with a connecting groove, which engages with the connecting rod. The connecting groove on the pull-out section facilitates the connection of the connecting rod, allowing the connecting rod to be disengaged from the pull-out section when not cleaning, thereby ensuring the sedimentation quality under normal working conditions and preventing it from being affected by the connecting rod.

[0011] Preferably, the connecting groove includes an opening that is angled downwards. This downward angled opening prevents the connecting rod from easily dislodging from the groove when it is pulled upwards, ensuring connection stability.

[0012] Preferably, the connecting groove is located on the upward-facing side of the pull-out section. Positioning the connecting groove on the upward-facing side of the pull-out section allows workers to easily connect and disconnect the connecting rod, and the connecting groove does not interfere with the sedimentation process.

[0013] Preferably, a limiting plate is provided on the pull-out section. When the inclined tube unit is connected to the movable inner tube, the limiting plate abuts against the end of the inclined tube unit. The limiting plate on the pull-out section can limit the pull-out section to the end of the inclined tube unit, thereby preventing the pull-out section from connecting with the inclined tube unit, thus facilitating the removal of the movable inner tube by the operator.

[0014] Preferably, the inclined tube unit is cylindrical, and the movable inner tube is semi-circular. The movable inner tube is fitted inside the inclined tube unit and can rotate within it. By making the inclined tube unit cylindrical and the movable inner tube semi-circular, the movable inner tube can both axially displace and rotate relative to the inclined tube unit. Due to its semi-circular shape, the movable inner tube can scrape away adhering sediment from the inclined tube unit during rotation, causing it to settle to the bottom of the sedimentation tank. After cleaning, the semi-circular shape allows the movable inner tube to rotate to the upper layer of the inclined tube unit, enabling the lower layer to continue collecting sediment for subsequent cleaning.

[0015] Preferably, the inclined tube unit is cylindrical, and the movable inner tube includes a cylindrical tube segment and a scraper segment located near the bottom of the inclined tube unit. The cylindrical tube segment is fitted inside the inclined tube unit and can rotate within it. By configuring the movable inner tube as a cylindrical tube segment and a scraper segment, the stability of the rotational connection between the movable inner tube and the inclined tube unit is ensured by the cylindrical tube segment, since the area where sediment accumulates in the inclined tube unit is generally located in the lower middle part of the unit. The scraper segment ensures cleaning of the interior of the inclined tube unit, facilitating operation and ensuring connection stability. Preferably, a visible target line can be provided on the cylindrical tube segment to facilitate the judgment of the status of the scraper segment at the bottom.

[0016] Preferably, the scraper section is a circular ring that fits against the movable inclined tube unit. The circular ring design allows the scraper section to fit tightly against the inner wall of the inclined tube unit, thereby improving the cleaning efficiency of the inclined tube unit.

[0017] The beneficial effects of this utility model are as follows:

[0018] (1) It can improve the cleaning efficiency of sediment and deposits inside the inclined tube, and ensure that the sedimentation tank works continuously and production efficiency is guaranteed.

[0019] (2) It can quickly complete the cleaning of the inclined tube unit, improve work efficiency, and simplify the cleaning process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a partial exploded view of this utility model.

[0022] Figure 3 This is a partial isometric view of this utility model.

[0023] Figure 4 This is an isometric view of Example 2.

[0024] Figure 5 This is an isometric view of Example 3.

[0025] In the picture:

[0026] 1. Inclined tube unit;

[0027] 2. Moving inner tube, 21. Connecting section, 22. Pull-out section, 23. Connecting groove, 231. Opening, 24. Limiting plate, 25. Circular tube section, 26. Scraper section, 261. Circular ring plate;

[0028] 3-link system. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] Example 1:

[0031] like Figure 1 , 2 As shown in Figure 3, an easy-to-clean inclined tube sedimentation tank includes a sedimentation tank containing several inclined tube units 1. Each inclined tube unit 1 has a sliding inner tube 2 slidably connected to it. The sliding inner tube 2 can be displaced axially within the inclined tube unit 1 and can be pulled out axially from within the inclined tube unit 1. The outer wall of the sliding inner tube 2 is in contact with the inner wall of the inclined tube unit 1. Each sliding inner tube 2 includes a connecting section 21 located inside the inclined tube unit 1 and a pull-out section 22 located outside the inclined tube unit 1. Each pull-out section 22 of the sliding inner tube 2 is detachably connected to a connecting rod 3, which can drive each sliding inner tube 2 to be pulled out synchronously. A connecting groove 23 is provided on the pull-out section 22, which engages with the connecting rod 3. The connecting groove 23 includes an opening 231, which is inclined downwards. The connecting groove 23 is located on the upward-facing side of the pull-out section 22. A limiting plate 24 is provided on the pull-out section 22. When the inclined tube unit 1 is connected to the movable inner tube 2, the limiting plate 24 abuts against the end of the inclined tube unit 1.

[0032] In the sedimentation tank, inclined tube unit 1 is placed. The inclined tube unit 1 can increase the sedimentation area, thereby ensuring sedimentation efficiency. Compared with straight tubes, the inclined tube unit 1 has higher sedimentation efficiency and is less prone to clogging. The sediment will only adhere to the lower layer. However, after a long period of use, the sediment will adhere to the lower layer, causing water flow obstruction and affecting the flow of water. Therefore, the inclined tube unit 1 needs to be tilted regularly to ensure sedimentation efficiency. In addition, during the cleaning process, the water in the sedimentation tank needs to be pumped out and drained before the inclined tube unit 1 can be cleaned, which affects the sedimentation efficiency. Afterwards, the sedimentation tank needs to be refilled, and production cannot be carried out during this process.

[0033] Therefore, to address the aforementioned issues, this application incorporates a movable inner tube 2 connected inside the inclined tube unit 1. Both the movable inner tube 2 and the inclined tube unit 1 are tubular structures. Thus, the sedimentation tank can perform sedimentation through either the inclined tube unit 1 or the movable inner tube 2. Since the movable inner tube 2 can be pulled out relative to the inclined tube unit 1, during operation, the movable inner tube 2 is first connected to the inclined tube unit 1 for sedimentation. The sedimentation tank then performs sedimentation through the movable inner tube 2, with the sediment settling in the lower layer of the movable inner tube 2. When cleaning the sediment is required, the movable inner tube 2 is pulled out and cleaned using a high-pressure water gun or specialized tools. In this case, sedimentation in the sedimentation tank proceeds through the inclined tube unit 1, thus not affecting production efficiency. 2. After cleaning, the movable inner tube 2 is connected to the inclined tube unit 1. During the connection process, the movable inner tube 2 scrapes away the sediment inside the inclined tube unit 1, thereby cleaning the inclined tube unit 1. Then, the sedimentation tank is used for sedimentation through the movable inner tube 2. Through the above sedimentation operation, the cleaning efficiency can be improved without affecting the operation of the sedimentation tank. Another way to use the movable inner tube 2 is to directly clean and scrape away the sediment inside the inclined tube unit 1 through the movable inner tube 2, and the sedimentation tank is used for sedimentation only through the inclined tube unit 1. The structural shape of the inclined tube unit and the movable inner tube can be set according to actual needs, including but not limited to honeycomb tubes, square tubes, and round tubes. In this embodiment, honeycomb tubes and round tubes are illustrated as examples.

[0034] The movable inner tube 2 is configured into two parts: a pull-out section 22 located outside the inclined tube unit 1 and a connecting section 21 located inside the inclined tube unit 1. The connecting section 21 is located inside the inclined tube unit 1 to maintain the connection between the inclined tube unit 1 and the movable inner tube 2. The pull-out section 22 allows the staff to easily pull the movable inner tube 2 out of the inclined tube unit 1, thereby improving work efficiency.

[0035] Connect each movable inner tube 2 to the connecting rod 3, so that the connecting rod 3 can simultaneously pull out multiple movable inner tubes 2, thereby improving work efficiency.

[0036] The connecting groove 23 provided on the pull-out section 22 facilitates the connection of the connecting rod 3, allowing the connecting rod 3 to be disengaged from the pull-out section 22 when cleaning is not required, thereby ensuring the sedimentation quality under normal working conditions and preventing it from being affected by the connecting rod 3.

[0037] The opening 231 of the connecting groove 23 is tilted downwards, so that the connecting rod 3 is not easy to come out of the connecting groove 23 when it is pulled upwards, thus ensuring the stability of the connection.

[0038] The connecting groove 23 is set on one side of the pull-out section 22, so that the staff can easily connect the connecting rod 3 and easily remove it, and the connecting groove 23 will not affect the sedimentation work.

[0039] The limiting plate 24 provided on the pull-out section 22 can limit the pull-out section 22 to the end of the inclined tube unit 1, so that the pull-out section 22 will not be connected to the inclined tube unit 1, thereby making it convenient for the staff to take out the movable inner tube 2.

[0040] Example 2:

[0041] like Figure 1 As shown, an easy-to-clean inclined tube sedimentation tank includes a sedimentation tank, in which several inclined tube units 1 are arranged. Each inclined tube unit 1 is slidably connected to a movable inner tube 2. The movable inner tube 2 can be displaced in the inclined tube unit 1 in the axial direction and can be pulled out from the inclined tube unit 1 in the axial direction. The outer wall of the movable inner tube 2 is in contact with the inner wall of the inclined tube unit 1.

[0042] In this application, a movable inner tube 2 is connected inside the inclined tube unit 1. Both the movable inner tube 2 and the inclined tube unit 1 are tubular structures. Therefore, the sedimentation tank can perform sedimentation work through the inclined tube unit 1 or through the movable inner tube 2. Since the movable inner tube 2 can be pulled out relative to the inclined tube unit 1, during use, the movable inner tube 2 is first connected to the inclined tube unit 1 for sedimentation. The sedimentation tank then performs sedimentation work through the movable inner tube 2, with the sediment settling in the lower layer of the movable inner tube 2. When it is necessary to clean the sediment, the movable inner tube 2 is pulled out and cleaned with a high-pressure water gun or professional tools. At this time, the sedimentation tank is cleaned through the inclined tube unit 1. Unit 1 performs sedimentation, thus not affecting production efficiency. After the moving inner tube 2 is cleaned, it is connected to the inclined tube unit 1. During the connection process, the moving inner tube 2 scrapes away the sediment inside the inclined tube unit 1, thereby cleaning the inclined tube unit 1. Afterward, the sedimentation tank then undergoes sedimentation through the moving inner tube 2. Through the above sedimentation operation, the cleaning efficiency can be improved without affecting the operation of the sedimentation tank. Another way to use the moving inner tube 2 is to directly clean and scrape away the sediment inside the inclined tube unit 1 through the moving inner tube 2, and the sedimentation tank only uses the inclined tube unit 1 for sedimentation.

[0043] like Figure 2 , 3 As shown, each movable inner tube 2 includes a connecting section 21 located inside the inclined tube unit 1, and a pull-out section 22 located outside the inclined tube unit 1. Each movable inner tube 2's pull-out section 22 is detachably connected to a connecting rod 3, which can drive each movable inner tube 2 to pull out synchronously. A connecting groove 23 is provided on the pull-out section 22, which engages with the connecting rod 3. The connecting groove 23 includes an opening 231, which is inclined downwards. The connecting groove 23 is located on the upward-facing side of the pull-out section 22. A limiting plate 24 is provided on the pull-out section 22; when the inclined tube unit 1 is connected to the movable inner tube 2, the limiting plate 24 abuts against the end of the inclined tube unit 1.

[0044] The movable inner tube 2 is configured in two parts: a pull-out section 22 located outside the inclined tube unit 1, and a connecting section 21 located inside the inclined tube unit 1. The connecting section 21, located inside the inclined tube unit 1, maintains the connection between the inclined tube unit 1 and the movable inner tube 2. The pull-out section 22 allows workers to easily pull the movable inner tube 2 out of the inclined tube unit 1, improving work efficiency. Connecting rods 3 connect the various movable inner tubes 2, allowing multiple movable inner tubes 2 to be pulled out simultaneously, further improving work efficiency. The connecting groove 23 on the pull-out section 22 facilitates the connection of the connecting rods 3, allowing the connecting rods 3 to be disengaged from the pull-out section 22 when not cleaning, thus ensuring sedimentation quality under normal working conditions and preventing interference from the connecting rods 3. The opening 231 of the connecting groove 23 is inclined downwards, making it difficult for the connecting rods 3 to disengage from the connecting groove 23 when pulled upwards, ensuring connection stability. The connecting groove 23 is positioned on one side of the pull-out section 22, allowing workers to easily connect and disconnect the connecting rod 3 without affecting the sedimentation process. The limiting plate 24 on the pull-out section 22 limits its position at the end of the inclined tube unit 1, preventing it from connecting to the unit and facilitating the removal of the movable inner tube 2.

[0045] like Figure 4 As shown, the inclined tube unit 1 is cylindrical, and the movable inner tube 2 includes a cylindrical tube segment 25 and a scraper segment 26 located near the bottom of the inclined tube unit 1. The cylindrical tube segment 25 is fitted inside the inclined tube unit 1 and can rotate inside the inclined tube unit 1. By configuring the movable inner tube 2 with the cylindrical tube segment 25 and the scraper segment 26, since the area where sediment accumulates in the inclined tube unit 1 is generally located in the lower middle part of the inclined tube unit 1, the movable inner tube 2 can ensure the stability of the rotational connection with the inclined tube unit 1 through the cylindrical tube segment 25, while the scraper segment 26 ensures the cleaning of the inside of the inclined tube unit 1. This facilitates operation by staff and ensures the stability of the connection. Preferably, a visible target line can be set on the cylindrical tube segment 25 to facilitate the judgment of the status of the scraper segment 26 at the bottom.

[0046] like Figure 4 As shown, the scraper section 26 is a circular ring 261, which adheres to the movable inclined tube unit 1. The scraper section 26 is a circular ring 261, which allows the scraper section 26 to adhere tightly to the inner wall of the inclined tube unit 1, thereby improving the cleaning efficiency of the inclined tube unit 1.

[0047] Example 3:

[0048] like Figure 1As shown, an easy-to-clean inclined tube sedimentation tank includes a sedimentation tank, in which several inclined tube units 1 are arranged. Each inclined tube unit 1 is slidably connected to a movable inner tube 2. The movable inner tube 2 can be displaced in the inclined tube unit 1 in the axial direction and can be pulled out from the inclined tube unit 1 in the axial direction. The outer wall of the movable inner tube 2 is in contact with the inner wall of the inclined tube unit 1.

[0049] In this application, a movable inner tube 2 is connected inside the inclined tube unit 1. Both the movable inner tube 2 and the inclined tube unit 1 are tubular structures. Therefore, the sedimentation tank can perform sedimentation work through the inclined tube unit 1 or through the movable inner tube 2. Since the movable inner tube 2 can be pulled out relative to the inclined tube unit 1, during use, the movable inner tube 2 is first connected to the inclined tube unit 1 for sedimentation. The sedimentation tank then performs sedimentation work through the movable inner tube 2, with the sediment settling in the lower layer of the movable inner tube 2. When it is necessary to clean the sediment, the movable inner tube 2 is pulled out and cleaned with a high-pressure water gun or professional tools. At this time, the sedimentation tank is cleaned through the inclined tube unit 1. Unit 1 performs sedimentation, thus not affecting production efficiency. After the moving inner tube 2 is cleaned, it is connected to the inclined tube unit 1. During the connection process, the moving inner tube 2 scrapes away the sediment inside the inclined tube unit 1, thereby cleaning the inclined tube unit 1. Afterward, the sedimentation tank then undergoes sedimentation through the moving inner tube 2. Through the above sedimentation operation, the cleaning efficiency can be improved without affecting the operation of the sedimentation tank. Another way to use the moving inner tube 2 is to directly clean and scrape away the sediment inside the inclined tube unit 1 through the moving inner tube 2, and the sedimentation tank only uses the inclined tube unit 1 for sedimentation.

[0050] like Figure 2 As shown, each movable inner tube 2 includes a connecting section 21 located inside the inclined tube unit 1, and a pull-out section 22 located outside the inclined tube unit 1. The movable inner tube 2 is configured as two parts: the pull-out section 22 located outside the inclined tube unit 1, and the connecting section 21 located inside the inclined tube unit 1. The connecting section 21, located inside the inclined tube unit 1, ensures a connection between the inclined tube unit 1 and the movable inner tube 2. The pull-out section 22 allows workers to easily pull the movable inner tube 2 out of the inclined tube unit 1, improving work efficiency.

[0051] like Figure 3 As shown, each movable inner tube 2 has a detachable pull-out section 22 connected to a connecting rod 3, which can drive each movable inner tube 2 to be pulled out synchronously. By connecting each movable inner tube 2 to the connecting rod 3, multiple movable inner tubes 2 can be pulled out simultaneously, thereby improving work efficiency.

[0052] like Figure 3As shown, the pull-out section 22 is provided with a connecting groove 23, which engages with the connecting rod 3. The connecting groove 23 on the pull-out section 22 facilitates the connection of the connecting rod 3, allowing the connecting rod 3 to be disengaged from the pull-out section 22 when not cleaning, thereby ensuring the sedimentation quality under normal working conditions and preventing it from being affected by the connecting rod 3.

[0053] like Figure 3 As shown, the connecting groove 23 includes an opening 231, which is inclined downwards. By inclining the opening 231 downwards, the connecting rod 3 is less likely to come out of the connecting groove 23 when it is pulled upwards, thus ensuring the stability of the connection.

[0054] like Figure 3 As shown, the connecting groove 23 is located on the upward-facing side of the pull-out section 22. Positioning the connecting groove 23 on the upward-facing side of the pull-out section 22 allows for easy connection and removal of the connecting rod 3 by the operator, and the connecting groove 23 does not interfere with the sedimentation process.

[0055] As shown in Figure 2, a limiting plate 24 is provided on the pull-out section 22. When the inclined tube unit 1 is connected to the movable inner tube 2, the limiting plate 24 abuts against the end of the inclined tube unit 1. The limiting plate 24 provided on the pull-out section 22 can limit the pull-out section 22 to the end of the inclined tube unit 1, thereby preventing the pull-out section 22 from connecting with the inclined tube unit 1, thus facilitating the removal of the movable inner tube 2 by the operator.

[0056] like Figure 5 As shown, the inclined tube unit 1 is circular, and the movable inner tube 2 is semi-circular. The movable inner tube 2 is fitted inside the inclined tube unit 1 and can rotate inside the inclined tube unit 1. By setting the inclined tube unit 1 to a circular shape and the movable inner tube 2 to a semi-circular shape, the movable inner tube 2 can both move axially relative to the inclined tube unit 1 and rotate relative to it. Due to the semi-circular shape of the movable inner tube 2, it can scrape off the attached sediment on the inclined tube unit 1 during rotation, allowing it to settle to the bottom of the sedimentation tank. After cleaning, the movable inner tube 2, being semi-circular, can rotate to the upper layer of the inclined tube unit 1, allowing the lower layer of the inclined tube unit 1 to continue collecting sediment for the next cleaning.

Claims

1. An easy-to-clean inclined tube sedimentation tank, characterized in that, It includes a sedimentation tank, in which several inclined tube units are provided. Each inclined tube unit is slidably connected to a movable inner tube, which can be displaced axially within the inclined tube unit and can be pulled out axially from the inclined tube unit. The outer wall of the movable inner tube is in contact with the inner wall of the inclined tube unit.

2. The easy-to-clean inclined tube sedimentation tank according to claim 1, characterized in that, Each of the movable inner tubes includes a connecting section located inside the inclined tube unit, and the movable inner tube includes a pull-out section located outside the inclined tube unit.

3. The easy-to-clean inclined tube sedimentation tank according to claim 2, characterized in that, Each of the movable inner tubes has a detachable connecting rod for its pull-out section, and the connecting rod can drive each movable inner tube to be pulled out synchronously.

4. The easy-to-clean inclined tube sedimentation tank according to claim 3, characterized in that, The pull-out section is provided with a connecting groove, which engages with the connecting rod.

5. The easy-to-clean inclined tube sedimentation tank according to claim 4, characterized in that, The connecting groove includes an opening that is inclined downwards.

6. The easy-to-clean inclined tube sedimentation tank according to claim 4, characterized in that, The connecting groove is located on the upward-facing side of the pull-out section.

7. The easy-to-clean inclined tube sedimentation tank according to claim 2, characterized in that, A limiting plate is provided on the pull-out section. When the inclined tube unit is connected to the moving inner tube, the limiting plate abuts against the end of the inclined tube unit.

8. An easy-to-clean inclined tube sedimentation tank according to any one of claims 1-7, characterized in that, The inclined tube unit is circular, and the movable inner tube is semi-circular. The movable inner tube is fitted inside the inclined tube unit and can rotate inside the inclined tube unit.

9. An easy-to-clean inclined tube sedimentation tank according to any one of claims 1-7, characterized in that, The inclined tube unit is in the shape of a circular tube, and the movable inner tube includes a circular tube segment in the shape of a circular tube. The movable inner tube includes a scraper segment disposed near the bottom of the inclined tube unit. The circular tube segment is sleeved inside the inclined tube unit and can rotate inside the inclined tube unit.

10. The easy-to-clean inclined tube sedimentation tank according to claim 9, characterized in that, The scraper section is a circular ring, which is attached to the moving inclined tube unit.

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