Mechanical efficient sedimentation tank

Abstract

The utility model belongs to the technical field of water treatment and purification, and particularly relates to a mechanical efficient settling pond which comprises a settling pond body, a plurality of partition plates are arranged in the settling pond body, water passing openings are formed in the upper portions of one ends of the partition plates in a staggered mode, and water passing channels are formed in the two sides of the partition plates. A water inlet pipe and a water outlet are formed in the upper parts of the ends, away from the corresponding water passing ports, of the water passing channels located on the two sides respectively, the water inlet pipe is connected with a driving part located in the sedimentation tank body, and a transverse rod is arranged in the sedimentation tank body and close to the water inlet end in an up-down sliding mode; at least one adsorption filler is correspondingly arranged in each water passing channel and is used for adsorbing impurities in water, and the other end of the adsorption filler is connected to the other end of the sedimentation tank body. According to the utility model, the adsorption piece swings by utilizing the laminar flow principle and cooperating with intermittent knocking, so that the precipitation separation effect and efficiency of impurities in water are effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of water treatment and purification technology, specifically relating to a mechanical high-efficiency sedimentation tank. Background Technology

[0002] To achieve water conservation and reuse, rainwater is often collected, filtered, and treated before irrigation or other uses. However, in mountainous or sloping areas, rainwater flows down from the mountaintops or slopes through ditches. Before collection, impurities such as branches and leaves are removed. Typically, filters or similar structures are installed at the end of the ditches to directly separate larger sedimentary particles such as stones and branches and leaves from the rainwater. However, the downstream water still contains a significant amount of sand, gravel, and silt. Furthermore, due to the flow velocity and impact, separating and settling these impurities is difficult. Current sedimentation methods mostly rely on natural sedimentation after water collection, which is inefficient and does not effectively utilize the impact of the water flow, resulting in waste. Summary of the Invention

[0003] This invention addresses the problem that current methods for separating rainwater impurities primarily involve collecting water and then allowing it to settle naturally. This approach suffers from low sedimentation efficiency and poor separation results, and also fails to utilize the impact of water flow, leading to waste. The invention provides a mechanically efficient sedimentation tank that uses a driving component to buffer the water flow, reducing its velocity. Rainwater then passes through multiple water channels, extending its sedimentation time. This allows impurities in the water to be adsorbed and collected by adsorbents. The driving component further utilizes the impact of the water flow, causing the adsorbents to vibrate and collect the floating impurities, which then fall and settle to the bottom of the sedimentation tank, effectively improving both sedimentation efficiency and effectiveness.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A mechanical high-efficiency sedimentation tank includes a sedimentation tank body. Multiple partition plates are installed within the sedimentation tank body. Water inlets are opened at the upper part of the ends of two adjacent partition plates that are furthest apart. Water passages are formed between the two sides of each partition plate and another partition plate or the inner wall of the sedimentation tank body, and adjacent water passages are connected through the water inlets. Inlet pipes and outlets are respectively installed at the upper part of the ends of the water passages on both sides that are furthest from the corresponding water inlets. The inlet pipes are connected to a driving component located within the sedimentation tank body. A crossbar is slidably installed within the sedimentation tank body near the inlet end. The driving component drives the crossbar to vibrate. The crossbar is connected to multiple adsorption packing materials. At least one adsorption packing material is correspondingly installed in each water passage for adsorbing impurities in the water. The other end of each adsorption packing material is connected to the other end of the sedimentation tank body. Water entering the sedimentation tank body through the inlet pipe flows sequentially through the multiple water passages, and during this process, impurities are adsorbed by the adsorption materials. The driving component periodically moves the crossbar downwards, causing the adsorbed and collected impurities on the adsorption materials to vibrate and fall, settling on the bottom surface inside the sedimentation tank body.

[0006] Preferably, the adsorption filler includes a connecting rope and adsorption strips tied to the connecting rope. Multiple adsorption strips are evenly distributed on the connecting rope, and impurities in the water flow are adsorbed and aggregated through the multiple adsorption strips.

[0007] Preferably, a support frame is fixedly installed inside the sedimentation tank body, and multiple cylinders are fixedly installed on the support frame. A through hole is passed through the upper part of the cylinder along the extension direction of the support frame. A crossbar passes through the through hole, and a limiting ring is sleeved on the crossbar. The outer side of the limiting ring corresponds to the inner wall of the cylinder. A spring is provided between the limiting ring and the upper side of the support frame. After the driving component drives the crossbar to move downward, the crossbar moves upward and resets under the action of the spring, ensuring the vibration effect of the adsorption element.

[0008] Preferably, the driving component includes a power component and a toggle component, the output end of the power component is connected to the toggle component, and the toggle component is used to push the crossbar downward.

[0009] Preferably, the power component includes a first turntable and a second turntable that are rotatably arranged. A drive shaft and multiple flat plates are fixedly arranged between the first turntable and the second turntable. The multiple flat plates are evenly arranged around the drive shaft. The water inlet pipe corresponds to the flat plate on the upper side of the drive shaft. The drive shaft passes through the second turntable and is connected to a toggle member. The water flow entering through the water inlet pipe impacts the flat plate, driving the power component to rotate, thereby realizing the utilization of the impact power of the water flow.

[0010] Preferably, the output end of the power component is connected to a driven shaft, a connecting plate is fixedly mounted on the driven shaft, and a roller is mounted on the outer end of the connecting plate. The roller contacts the crossbar, and the power component drives the driven shaft to rotate, which in turn drives the connecting plate and the roller to rotate. Each rotation causes the roller to push the crossbar downward once.

[0011] Preferably, the output end of the power component is fixedly connected to a first gear, and one end of the driven shaft is fixedly connected to a second gear. The diameter of the first gear is smaller than that of the second gear and meshes with the second gear. By setting the gear ratio between the first gear and the second gear, the period of downward movement of the lever is adjusted.

[0012] Preferably, a box is fixedly installed at the water inlet end of the sedimentation tank body, and the opening on the side of the box away from the water inlet pipe is connected to the water passage. The power component is rotatably installed in the box to ensure that the outlet direction of the water flow after entering the power component is the same as the water flow pressure when impacting the power component.

[0013] The beneficial effects of this utility model through the above technical solution are as follows:

[0014] 1. This utility model extends the water flow path within the sedimentation tank body by using a partition plate. At the same time, the water outlet at the upper end of the partition plate allows the upper layer of clear water to overflow into the lower water passage. Then, by utilizing the principle of swirling laminar flow, a velocity difference is created between the upper and lower layers of water. As a result, easily sedimentable impurities settle directly in the lower layer, while smaller and lighter impurities that are not easily sedimented flow with the upper layer of water, thereby improving sedimentation efficiency.

[0015] 2. This utility model uses an adsorption element to adsorb and separate impurities in the upper layer of water with a relatively fast flow rate, so that the impurities in the water are adsorbed and gathered on the adsorption element, thereby improving the impurity separation efficiency and the adsorption and separation effect on smaller particulate impurities in water with a certain flow rate.

[0016] 3. This utility model uses water flow to drive the roller to press the crossbar downwards at regular intervals. When the roller leaves the crossbar, the spring lifts the crossbar again, causing the crossbar to swing the adsorbent up and down, throwing off the impurities adsorbed on it and letting them settle underwater (because impurities gather on the adsorbent, small-diameter impurities become larger in weight and volume after gathering together, making them easier to settle). At the same time, it avoids impurities from continuously gathering on the adsorbent, which would affect the adsorption capacity of the adsorbent, thereby effectively shortening the sedimentation time of silt particles and improving sedimentation efficiency.

[0017] 4. Compared with ordinary sedimentation tanks, which can settle 35% of the silt and sand within a certain time, the mechanical high-efficiency sedimentation tank of this utility model can settle 85% of the silt and sand within the same time. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0019] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0020] Figure 3This is a schematic diagram of the structure of this utility model without the adsorption component installed.

[0021] Figure 4 This is a schematic diagram of the structure of the sedimentation tank body when it is removed.

[0022] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0023] Figure 6 This is a schematic diagram of the structure of the adsorption component of this utility model.

[0024] Figure 7 This is a schematic diagram of the structure of the driving component of this utility model. Figure 1 .

[0025] Figure 8 This is a schematic diagram of the structure of the driving component of this utility model. Figure 2 .

[0026] Figure 9 This is a schematic diagram of the structure of the driving component of this utility model. Figure 3 .

[0027] Figure 10 This is a schematic diagram of the power component of this utility model.

[0028] Figure 11 This is a schematic diagram of the crossbar structure of this utility model.

[0029] The following figures are labeled as follows: 1 is the sedimentation tank body, 2 is the partition plate, 3 is the water outlet, 4 is the water passage, 5 is the water inlet pipe, 6 is the water outlet, 7 is the crossbar, 8 is the adsorption element, 9 is the support frame, 10 is the cylinder, 11 is the perforation, 12 is the limiting ring, 13 is the spring, 14 is the connecting rope, 15 is the adsorption strip, 16 is the first turntable, 17 is the second turntable, 18 is the drive shaft, 19 is the flat plate, 20 is the driven shaft, 21 is the connecting plate, 22 is the roller, 23 is the first gear, 24 is the second gear, and 25 is the box body. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0031] like Figures 1 to 11As shown, this embodiment provides a mechanical high-efficiency sedimentation tank, including a sedimentation tank body 1. Multiple partition plates 2 are installed inside the sedimentation tank body 1. Water inlets 3 are opened at the upper part of the opposite ends of two adjacent partition plates 2. Water passages 4 are formed between the two sides of each partition plate 2 and another partition plate 2 or the inner wall of the sedimentation tank body 1. Two adjacent water passages 4 are connected through water inlets 3. Inlet pipes 5 and outlets 6 are respectively installed at the upper part of the opposite ends of the water passages 4 on both sides. Water from the hillside ditch first passes through a filter screen to separate impurities such as branches, leaves, and stones, and then enters the water passages 4 inside the sedimentation tank body 1 through the inlet pipe 5. The water flows through multiple water passages 4 in sequence (during which impurities in the water flow settle and separate) and is then discharged from the sedimentation tank body 1 through the outlet 6.

[0032] Specifically, there are two partition plates 2 and three water passages 4. The water level rises as it enters the first water passage 4 through the inlet pipe 5 and overflows into the second water passage 4 through the outlet 3 at its end. After flowing through multiple water passages 4 in sequence, the purified water that has completed sedimentation and separation is discharged from the outlet 6 from the sedimentation tank body 1 and transported to subsequent treatment equipment for direct use.

[0033] The inlet pipe 5 is connected to a drive unit located inside the sedimentation tank body 1. A crossbar 7 is slidably installed inside the sedimentation tank body 1 near the inlet end. The drive unit drives the crossbar 7 to vibrate. The drive unit includes a power component and a toggle component. The output end of the power component is connected to the toggle component. The toggle component is used to push the crossbar 7 downward.

[0034] Specifically, the power component includes a first turntable 16 and a second turntable 17 that are rotatably arranged. A drive shaft 18 and a plurality of flat plates 19 are fixedly arranged between the first turntable 16 and the second turntable 17. The plurality of flat plates are evenly arranged around the drive shaft 18. The water inlet pipe 5 corresponds to the flat plate 19 on the upper side of the drive shaft 18. The water flowing out of the water inlet pipe 5 impacts the corresponding flat plate 19, thereby driving the first turntable 16, the second turntable 17, the drive shaft 18, and the power component behind the plurality of flat plates 19 to rotate.

[0035] A support frame 9 is fixedly installed inside the sedimentation tank body 1. The support frame 9 is a frame structure that does not affect the flow of water. A box 25 is fixedly installed on the support frame 9. A box 25 is fixedly installed at the water inlet end of the sedimentation tank body 1. The opening of the box 25 away from the water inlet pipe 5 is connected to the water passage 4. The power component is rotatably installed inside the box 25. The installation of the box 25 allows the water flow to drive the power component to rotate and then flow out from the opening of the box 25. On the one hand, it ensures that the water pressure after the water flows into the box 25 is sufficient to drive the power component to rotate. On the other hand, it ensures that the direction of the outflowing water is met so that it enters the corresponding water passage 4.

[0036] It should be noted that, since the water overflows into the next water passage 4 through the water outlet 3 or overflows out of the sedimentation tank body 1 through the water outlet 6, the upper layer of water in the water passage 4 has a faster flow velocity and the lower layer has a slower flow velocity, which facilitates sedimentation and deposition at the bottom of the water passage 4.

[0037] The drive shaft 18 passes through the second turntable 17 and is connected to the actuating element. The output end of the power component is connected to the driven shaft 20. The output end of the power component is fixedly connected to the first gear 23. That is, the drive shaft 18 passes through the second turntable 17 and is fixedly connected to the first gear 23 after passing through one side wall of the housing 25. One end of the driven shaft 20 is fixedly connected to the second gear 24. The diameter of the first gear 23 is smaller than that of the second gear 24 and it meshes with the second gear 24. The drive shaft 18 drives the first gear 23 to rotate, drives the meshing second gear 24 to rotate, and drives the driven shaft 20 to rotate. A connecting plate 21 is fixedly provided on the driven shaft 20. A roller 22 is provided at the outer end of the connecting plate 21. The roller 22 contacts the crossbar 7.

[0038] As the driven shaft 20 rotates, multiple connecting plates 21 rotate, causing multiple rollers 22 to intermittently strike the crossbar 7 downwards, causing the crossbar 7 to vibrate.

[0039] Multiple cylinders 10 are fixedly mounted on the support frame 9. A through hole 11 is passed through the upper part of each cylinder 10 along the extension direction of the support frame 9. The crossbar 7 passes through the through hole 11 and a limiting ring 12 is fitted on the crossbar 7. The outer side of the limiting ring 12 corresponds to the inner wall of the cylinder 10. The limiting ring 12 makes the crossbar 7 move up and down smoothly. A spring 13 is provided between the limiting ring 12 and the upper side of the support frame 9. The crossbar 7 moves down under the action of the roller 22, and the spring 13 is compressed. When the roller 22 rotates away from the crossbar 7, the crossbar 7 returns to its original position under the action of the spring 13, and continues to rotate with the driven shaft 20, repeating the above process continuously.

[0040] The crossbar 7 connects to multiple adsorption elements 8. Each water passage 4 has at least one adsorption element 8 for adsorbing impurities in the water. The other end of the adsorption element 8 is connected to the other end of the sedimentation tank body 1, that is, the adsorption element 8 extends along the water flow direction and the height of the adsorption element 8 is the same as that of the water outlet 3. The adsorption element 8 includes a connecting rope 14 and adsorption strips 15 tied to the connecting rope 14. Multiple adsorption strips 15 are evenly distributed on the connecting rope 14. The connecting rope 14 can be made of steel wire rope to ensure its strength and avoid breakage. The adsorption strips 15 are made of biological filler. Furthermore, the adsorption strips 15 are made of plastic. The connecting rope 14 and the adsorption strips 15 together form a roller brush-like structure, which adsorbs and collects impurities in the faster-flowing water in the upper layer of the water passage 4. When a certain amount of impurities are adsorbed and collected, as the crossbar 7 moves down and up to reset, the adsorbed and collected impurities are thrown out or shaken off into the lower layer of water flow, and then settled at the bottom of the water passage 4.

[0041] It should be noted that, as impurity particles adsorb and aggregate on the adsorption element 8, their gravity increases, and after being thrown off, they are more likely to settle to the bottom and form precipitate.

[0042] It should be further noted that the bottom of the outlet 6 is not lower than the bottom of the inlet 3.

[0043] Furthermore, the adsorption element 8 includes a plurality of connecting ropes 14, such as... Figure 4 or Figure 6 As shown, the adsorption element 8 includes a long connecting rope extending along the water flow direction and a short connecting rope for connecting two long connecting ropes. Each pair of long connecting ropes and multiple short connecting ropes connecting the two together with the adsorption strips 15 on the surface of the connecting rope 14 constitute an adsorption element 8. Two adsorption elements 8 can be set in each water passage 4. The two adsorption elements 8 corresponding to each other are connected by short connecting ropes. Adsorption strips 15 are evenly distributed on the long connecting rope and the short connecting rope.

[0044] Furthermore, there is a gap between any two adjacent long connecting ropes or between any two adjacent short connecting ropes, and the gap is greater than twice the length of the adsorption strip 15.

[0045] As one possible implementation, another adsorbent 8 can be tied below the adsorbent 8, and the lower end of the other adsorbent 8 is located at the bottom of the water passage 4. This reduces the water flow velocity at the bottom of the water passage 4 on the one hand, and reduces the amount of sediment at the bottom that flows with the water or is carried away by the water flow on the other hand.

[0046] As one possible implementation, a filter screen (not shown in the figure) is fixedly installed in the water passage 4 corresponding to the power component. The filter screen corresponds to the opening of the box 25, so that the water flowing out of the box 25 falls on the filter screen and is buffered before entering the water passage 4, thus avoiding direct impact on the water passage 4 and causing the impurities that have settled there to mix with the upper layer of water again, affecting the sedimentation effect and efficiency.

[0047] As one possible implementation, by adjusting the gear ratio of the first gear 23 to the second gear 24, the driven shaft 20 rotates once every 3 minutes, that is, the roller 22 knocks or presses down on the horizontal bar 7 every 3 minutes or so, and then the horizontal bar 7 moves up and resets under the elastic force of the spring 13.

[0048] As one possible implementation, the sedimentation tank body 1 is provided with an annular masonry that fits against the inner wall of the sedimentation tank body 1. The upper side of the masonry is lower than the lower side of the water outlet 3. Multiple channel steels are fixedly arranged at equal intervals on the upper side of the masonry for fixing the partition plate 2.

[0049] As one possible implementation, the sedimentation tank body 1 is a square water tank with internal dimensions of 5m in length, 1.5m in width, and 1.7m in height. The water passage 4 is set to three, each water passage 4 being 5m in length and 0.5m in width, and the masonry thickness is 0.12m.

[0050] In use, rainwater from the hillside flows down through ditches. First, it passes through a filter plate at the end of the ditch to separate out branches, leaves, stones, etc. Then, it passes through the mechanical high-efficiency sedimentation tank of this invention to separate the silt. The height difference between the end of the ditch and the outlet of the inlet pipe 5, i.e., the sedimentation tank body 1, is about 1.5m. The water flows into the first water passage 4 inside the sedimentation tank body 1 through the inlet pipe 5. When the water level in the water passage 4 rises to the corresponding water outlet 3, the upper layer of water overflows through the water outlet 3 to the next water passage 4, and the above process is repeated. The water flows through multiple water passages 4 in sequence and then overflows from the outlet 6 to leave the sedimentation tank body 1. Since the water flows out in each water passage 4 by overflow, the upper layer of water in the water passage 4 has a greater flow velocity than the lower layer, resulting in a gentler flow in the lower layer, which is conducive to the sedimentation of impurities.

[0051] Meanwhile, as the upper water flows, it continuously contacts and washes the adsorption element 8. Under the action of the adsorption strips 15 on the adsorption element 8, smaller impurities and silt flowing with the water are adsorbed onto the adsorption element 8 and continuously aggregate into clumps on the adsorption element 8. It should be noted that when the water flows into the sedimentation tank body 1 through the inlet pipe 5, it first impacts the corresponding plate 19, driving the power component to rotate, which in turn drives the driven shaft 20 to rotate. By setting the gear ratio between the first gear 23 and the second gear 24, the time for the driven shaft 20 to rotate one revolution can be adjusted, that is, the time for the roller 22 to press down on the crossbar 7 once can be adjusted. Thus, when the adsorption element 8 adsorbs a certain amount of silt and impurities and the silt and impurities aggregate on the adsorption element 8, the adsorption process continues. After the aggregates are formed, the crossbar 7 moves downward under the action of the roller 22. Then, when the roller 22 rotates and disengages from the crossbar 7, the crossbar 7 moves upward and resets under the action of the spring 13. During this process, the adsorption element 8 swings up and down, throwing the aggregated mud and sand impurities out of the adsorption element 8. The thrown mud and sand impurities then settle to the bottom of the corresponding water passage 4. When the water flows to the next water passage 4, the above process is repeated. By adsorbing, collecting and throwing out the impurities in the flowing water and causing them to settle to the bottom of the corresponding water passage 4, the impurities in the water are effectively separated. As the water flows continuously from the inlet pipe 5 into the sedimentation tank body 1, the above process is repeated continuously, effectively reducing the mud and sand impurities in the water discharged from the sedimentation tank body 1.

[0052] Meanwhile, a filter screen is installed at the water outlet of the power component to reduce the impact force of water flowing into the first water passage 4, and to prevent the sedimented impurities from being impacted and mixed with the upper water again. The vertically extending adsorption element 8 installed at the bottom of the water passage 4 slows down the flow rate of the lower water in the water passage 4, anchors the lower sediment, and reduces the sediment from flowing with the upper water again, thereby further ensuring the sedimentation effect and improving the sedimentation efficiency.

[0053] With the cooperation of the above-mentioned mechanisms, the sedimentation effect of the mechanical high-efficiency sedimentation tank of this utility model can reach 85%, which effectively improves the efficiency of sediment separation in water.

[0054] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A mechanically efficient sedimentation tank, characterized in that, The system includes a sedimentation tank body (1), which is provided with multiple partition plates (2). Water inlets (3) are opened at the upper part of the opposite ends of two adjacent partition plates (2). Water passages (4) are formed between the two sides of the partition plate (2) and another partition plate (2) or the inner wall of the sedimentation tank body (1). Two adjacent water passages (4) are connected through water inlets (3). The upper part of the water passage (4) located on both sides away from the corresponding water outlet (3) is respectively provided with an inlet pipe (5) and an outlet (6). The inlet pipe (5) is connected to a drive unit located in the sedimentation tank body (1). A crossbar (7) is slidably arranged up and down near the water inlet end in the sedimentation tank body (1). The drive unit drives the crossbar (7) to vibrate. The crossbar (7) is connected to multiple adsorbents (8). Each water passage (4) is provided with at least one adsorbent (8) for adsorbing impurities in the water. The other end of the adsorbent (8) is connected to the other end of the sedimentation tank body (1).

2. The mechanical high-efficiency sedimentation tank according to claim 1, characterized in that, The adsorption component (8) includes a connecting rope (14) and adsorption strips (15) tied to the connecting rope (14), and multiple adsorption strips (15) are evenly distributed on the connecting rope (14).

3. The mechanical high-efficiency sedimentation tank according to claim 1, characterized in that, A support frame (9) is fixedly installed inside the sedimentation tank body (1). Multiple cylinders (10) are fixedly installed on the support frame (9). A through hole (11) is passed through the upper part of the cylinder (10) along the extension direction of the support frame (9). A crossbar (7) passes through the through hole (11). A limiting ring (12) is sleeved on the crossbar (7). The outer side of the limiting ring (12) matches the inner wall of the cylinder (10). A spring (13) is provided between the limiting ring (12) and the upper side of the support frame (9).

4. A mechanically efficient sedimentation tank according to claim 1 or 3, characterized in that, The driving component includes a power component and a toggle component. The output end of the power component is connected to the toggle component, and the toggle component is used to push the crossbar (7) downward.

5. A mechanically efficient sedimentation tank according to claim 4, characterized in that, The power component includes a first turntable (16) and a second turntable (17) that are rotatably arranged. A drive shaft (18) and a plurality of flat plates (19) are fixedly arranged between the first turntable (16) and the second turntable (17). The plurality of flat plates are evenly arranged around the drive shaft (18) (19). The water inlet pipe (5) corresponds to the flat plate (19) on the upper side of the drive shaft (18). The drive shaft (18) passes through the second turntable (17) and is connected to a toggle.

6. A mechanically efficient sedimentation tank according to claim 4, characterized in that, The output end of the power component is connected to a driven shaft (20), and a connecting plate (21) is fixedly installed on the driven shaft (20). A roller (22) is installed at the outer end of the connecting plate (21), and the roller (22) contacts the crossbar (7).

7. A mechanically efficient sedimentation tank according to claim 6, characterized in that, The output end of the power component is fixedly connected to the first gear (23), and one end of the driven shaft (20) is fixedly connected to the second gear (24). The diameter of the first gear (23) is smaller than that of the second gear (24) and meshes with the second gear (24).

8. A mechanically efficient sedimentation tank according to claim 5, characterized in that, The sedimentation tank body (1) is fixedly equipped with a box (25) at the water inlet end. The opening of the box (25) away from the water inlet pipe (5) is connected to the water passage (4). The power component is rotatably installed inside the box (25).

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