Inclined tube sedimentation tank with backwashing function

Abstract

The invention relates to the technical field of sewage sedimentation equipment, and discloses an inclined tube sedimentation tank with a backwashing function, the inclined tube sedimentation tank comprises a separation box, the inner side of the separation box is fixedly provided with a partition plate for dividing the separation box into a water inlet cavity and a sedimentation cavity, and the inner side of the separation box is fixedly provided with a plurality of sedimentation inclined tubes; the settlement inclined pipes are obliquely arranged, and the settlement inclined pipes in the same row perpendicular to the inclination direction of the settlement inclined pipes form a group. The inner wall of the sedimentation inclined pipe is shielded by the sedimentation belt or the rotating pipe composed of the arc-shaped plates, so that the sedimentation surface on the inner side of the sedimentation inclined pipe can be adjusted and changed, in the process of cleaning deposited sludge, the aeration mechanism is used for aeration backwashing, and the sedimentation belt or the rotating pipe is driven to rotate in cooperation with the adjusting mechanism; the inner wall which is not easy to contact with floating bubbles generated in the aeration process is cyclically changed to the top, so that the cleaning effect on the whole deposited sludge surface is ensured, the cleaning efficiency is improved, and the whole water inlet stopping time of the sedimentation tank is shortened.

Description

Technical Field

[0001] This application relates to the technical field of sewage sedimentation equipment, and in particular to an inclined tube sedimentation tank with a backwashing function. Background Art

[0002] An inclined tube sedimentation tank is a device that realizes sludge discharge by increasing the sedimentation area and shortening the particle sedimentation distance through the setting of dense inclined tubes based on the shallow tank sedimentation theory and the gravity sedimentation principle. The existing inclined tube sedimentation tank includes a separation tank. A partition is arranged inside the separation tank to divide the cavity inside the separation tank into a water inlet chamber and a sedimentation chamber. A number of inclined tubes are densely arranged in the sedimentation chamber, and the number of inclined tubes is in an inclined state. Sewage enters the sedimentation chamber from the bottom of the partition in the water inlet chamber, and then flows through the tube holes of the inclined tubes to the top of the sedimentation chamber and enters the water guide pipe through the weir plate, and flows into the storage tank from the water guide pipe. When the sewage passes through the inclined tubes, the inclined tubes will cause the suspended impurities in the water to gradually precipitate. The water after precipitation along the inclined tubes will maintain an upward and flowing state, so as to realize the separation of sludge and water. Under the action of gravity, the separated sludge will slide down along the inclined tubes and finally deposit at the bottom of the tank and be discharged centrally. During the sedimentation process of the sedimentation tank, sludge will be deposited on the surface of the inclined tubes, and it is necessary to clean it in time to avoid affecting the water quality of the effluent. Currently, a high-pressure water gun is usually used to wash the inner wall of the inclined tubes.

[0003] However, when the traditional inclined tube sedimentation tank uses a water gun to wash the inclined tubes, it is necessary to empty the water in the separation tank first and then wash the inclined tubes, resulting in a long production stoppage time for the sedimentation tank operating in full group, and a large amount of manual operation is required, with high production costs. Summary of the Invention

[0004] This application proposes an inclined tube sedimentation tank with a backwashing function, which has the advantages of improving the cleaning effect of the inclined tubes and reducing the duration of stopping water inflow, so as to solve the problem of long production stoppage time of the sedimentation tank caused by pumping and cleaning.

[0005] To achieve the above object, this application adopts the following technical solution: An inclined tube sedimentation tank with a backwashing function includes a separation tank. A partition that divides the separation tank into a water inlet cavity and a sedimentation cavity is fixedly arranged inside the separation tank. A number of sedimentation inclined tubes are fixedly arranged inside the separation tank. The sedimentation inclined tubes are arranged in an inclined manner. The sedimentation inclined tubes in the same column perpendicular to the inclination direction of the sedimentation inclined tubes form a group. An aeration mechanism is arranged inside the separation tank. An adjusting mechanism is arranged inside the separation tank. A shielding member is arranged inside the separation tank, and the shielding member is used to shield the inner wall of the sedimentation inclined tubes.

[0006] The adjusting mechanism is used to cooperate with the aeration mechanism to clean the inner wall of the shielding member. The aeration mechanism can aerate at the bottom of the settling inclined tube, and the bubbles generated by aeration pass through the inside of the settling inclined tube to clean the inner wall of the shielding member. The adjusting mechanism can drive the shielding member to rotate cyclically, and switch the top and bottom surfaces of the inner wall of the shielding member during the aeration process of the aeration mechanism.

[0007] Furthermore, the inner wall of the settling inclined tube is set as a regular polygon, and through grooves are provided between adjacent settling inclined tubes in the same group. The shielding member is set as a settling belt, and a single settling belt is movably sleeved inside the corresponding group of settling inclined tubes. One side of the settling belt extends out of the settling inclined tube and cooperates with the adjusting mechanism. The adjusting mechanism is used to tension the settling belt and can drive the settling belt to rotate cyclically;

[0008] A plurality of fixing rings are provided at the top and bottom positions of the inner wall of the separation box. Adjacent fixing rings at the same height corresponding to the same group of settling inclined tubes are fixedly connected. A plurality of connecting plates are provided on the inner wall of the separation box, and the connecting plates are fixedly connected to the fixing rings. A plurality of guide rods are rotatably connected between the two fixing rings corresponding to a single settling inclined tube, and the plurality of guide rods cooperate to tension the settling belt.

[0009] The inner wall of the settling inclined tube is shielded by the settling belt propped open under the action of the guide rod, and the adjusting mechanism drives the settling belt to rotate cyclically during the aeration process to switch the top surface of the inner wall of the settling belt in an inclined state.

[0010] Furthermore, a scraping plate is provided on one side of a group of settling inclined tubes to scrape the sludge on the inner wall of the settling belt when the settling belt rotates cyclically. Two material guide grooves are provided on the inner wall of the separation box. The scraping plate is slidably connected to the corresponding settling belt. A plurality of fixing plates are fixedly provided at the bottom of the inner wall of the separation box, and the scraping plate is fixedly connected to the corresponding fixing plates.

[0011] The sludge is scraped outside the aeration range to reduce the possibility of the hanging sludge being driven up by the bubbles generated by aeration.

[0012] Furthermore, the adjusting mechanism further includes a first transmission shaft and two driving mechanisms. Both the first transmission shaft and the second transmission shaft are rotatably sleeved on the inner wall of the separation box and the fixing plates. A plurality of first rotating cylinders are fixedly sleeved on the outer side of the first transmission shaft, and the driving mechanism can drive the first transmission shaft to rotate.

[0013] The rotation of the first rotating cylinder is used to drive the settling belt to rotate cyclically.

[0014] Further, the driving mechanism includes a first motor and a second motor. The output end of the first motor is drivingly connected to a corresponding first transmission shaft. A transmission wheel is fixedly sleeved on the top of the first transmission shaft. The transmission wheels corresponding to two adjacent first transmission shafts are drivingly connected by a transmission belt. The first motor is fixedly arranged on the top of the separation tank.

[0015] When the first motor rotates, it can drive the rotation of the first transmission shafts corresponding to different groups of settling inclined tubes. The two driving mechanisms respectively drive the rotation of the corresponding first transmission shafts on the front and back sides of the separation tank.

[0016] Further, the adjusting mechanism further includes a second transmission shaft. The second transmission shaft is rotatably sleeved on the inner wall of the separation tank and the fixing plate. A plurality of second rotating cylinders are fixedly sleeved on the outer side of the second transmission shaft. The settling belt includes a plurality of first circulating belts and second circulating belts. The first circulating belts and the second circulating belts are arranged alternately. The first rotating cylinder is sleeved with a corresponding first circulating belt. The second rotating cylinder is sleeved with a corresponding second circulating belt.

[0017] The driving mechanism further includes a second motor. The output end of the second motor is drivingly connected to a corresponding second transmission shaft. A transmission wheel is fixedly sleeved on the top of the second transmission shaft. The transmission wheels corresponding to two adjacent second transmission shafts are drivingly connected by a transmission belt. The second motor is fixedly arranged on the top of the separation tank.

[0018] By setting the settling belt separately into a first circulating belt and a second circulating belt, different parts of a single settling belt move in a staggered manner, providing a shearing force to the sludge that may exist in the staggered gap.

[0019] The beneficial effects of the present invention are as follows:

[0020] A lamella clarifier with a backwashing function provided by the present application blocks the inner wall of the settling inclined tube with a shielding member. During the process of cleaning the inner wall of the shielding member, aeration is carried out at the bottom of the settling inclined tube by an aeration mechanism to generate bubbles within a rated range to clean the inner wall of the shielding member. The adjusting mechanism drives the shielding member to rotate in a cycle, so that the inner wall part of the shielding member that is not easily contacted by the floating bubbles in the inclined state rotates to the top, thereby ensuring the complete cleaning of the inner wall of the shielding member, achieving the effects of ensuring the sludge cleaning effect while improving the sludge cleaning efficiency and reducing the duration of the separation tank stopping water intake. Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings:

[0022] Figure 1 Schematic diagram of the overall structure of this application;

[0023] Figure 2 Schematic diagram of the layout structure of the sedimentation inclined tubes of this application;

[0024] Figure 3 Schematic diagram of the layout structure of the aeration pipes of this application;

[0025] Figure 4 Schematic diagram of the layout structure of the aeration holes of this application;

[0026] Figure 5 Schematic diagram of the layout structure of the circulation mechanism of this application;

[0027] Figure 6 For this application Figure 5 Enlarged view of the structure at location A;

[0028] Figure 7 For this application Figure 5 Enlarged view of the structure at location B;

[0029] Figure 8 Schematic diagram of the structure at the first motor of this application;

[0030] Figure 9 For this application Figure 8 Enlarged view of the structure at location C;

[0031] Figure 10 For this application Figure 8 Enlarged view of the structure at location D;

[0032] Figure 11 Schematic diagram of a group of sedimentation inclined tube structures in the third embodiment of this application;

[0033] Figure 12 Schematic diagram of the structure at the arc plate in the third embodiment of this application;

[0034] Figure 13 Schematic cross-sectional view of the structure at the connecting ring in the third embodiment of this application;

[0035] Figure 14 Schematic diagram of the adjusting ring structure in the third embodiment of this application.

[0036] In the figure: 1 - separation tank, 2 - inclined settling tube, 3 - partition board, 4 - water guide pipe, 5 - water storage tank, 6 - air inlet pipe, 7 - aeration pipe, 8 - aeration hole, 9 - settling zone, 901 - first circulation zone, 902 - second circulation zone, 10 - first transmission shaft, 11 - second transmission shaft, 12 - first rotating cylinder, 13 - second rotating cylinder, 14 - fixed plate, 15 - scraping plate, 16 - guide rod, 17 - fixing ring, 18 - connecting plate, 19 - first motor, 20 - second motor, 21 - transmission wheel, 22 - transmission belt, 23 - material guiding groove, 24 - weir plate, 25 - arc plate, 26 - connecting rod, 27 - support ring, 28 - connecting ring, 29 - transmission ring, 30 - first sprocket, 31 - second sprocket, 32 - transmission chain, 33 - adjusting ring, 34 - adjusting groove, 35 - fixing block, 36 - support plate, 37 - third motor, 38 - side plate. Specific embodiments

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0038] Embodiment 1, as Figures 1 - 4 , an inclined tube sedimentation tank with a backwashing function, includes a separation tank 1. A partition board 3 is fixedly arranged inside the separation tank 1. The partition board 3 divides the separation tank 1 into a water inlet chamber and a sedimentation chamber. The water inlet chamber and the sedimentation chamber are communicated through the channel between the bottom of the partition board 3 and the bottom inner wall of the separation tank 1. A plurality of inclined settling tubes 2 are fixedly arranged inside the separation tank. The outer wall of the inclined settling tube 2 is a regular polygon and is located in the sedimentation chamber. Specifically, the outer wall of the inclined settling tube 2 is a regular hexagon, and the inclined settling tube 2 is arranged obliquely. A water guide pipe 4 is fixedly arranged on one side of the top of the separation tank 1. A weir plate 24 is fixedly arranged on one side of the water guide pipe 4. A groove for the flow of the settled water is opened on the top surface of the weir plate 24. Refer to Figure 1 , a water storage tank 5 is fixedly arranged on the back of the separation tank 1. The water guide pipe 4 is communicated with the water storage tank 5.

[0039] When sewage treatment is carried out, the sewage is introduced into the water inlet chamber. The sewage enters the sedimentation chamber through the channel between the partition board 3 and the bottom inner wall of the separation tank 1. The sewage flows from the bottom of the inclined settling tube 2 through the tube holes of the inclined settling tube 2 to the top of the inclined settling tube 2 to complete sedimentation. The settled water flows into the water guide pipe 4 through the groove of the weir plate 24, and then flows into the water storage tank 5. The sludge settles to the bottom of the separation tank 1. A sludge extraction assembly is arranged at the bottom of the separation tank 1, and the sludge extraction assembly extracts the accumulated sludge.

[0040] It also includes an air pump. At the top of the inner wall of the separation tank 1, an air inlet pipe 6 is fixedly arranged. The number of the air inlet pipes 6 is at least one. The air inlet pipe 6 is communicated with the air pump through a pipeline provided with an electromagnetic valve. At the bottom of the air inlet pipe 6, an air diffuser pipe 7 is fixedly connected. The number of the air diffuser pipes 7 corresponding to a single air inlet pipe 6 is set to be several. The corresponding several air diffuser pipes 7 are arranged at equal intervals outside the air inlet pipe 6. The air diffuser pipe 7 is inclined, and the axis of the air diffuser pipe 7 is parallel to the axis of the settling inclined tube 2. The air diffuser pipe 7 extends into the corresponding settling inclined tube 2. Refer to Figure 3 , the height of the bottom end of the air diffuser pipe 7 is lower than the height of the bottom of the settling inclined tube 2. Refer to Figure 4 , a plurality of air holes 8 are formed in the outer wall of the bottom of the air diffuser pipe 7. The plurality of air holes 8 are arranged at equal intervals and are staggered in the axial direction of the air diffuser pipe 7. Refer to Figure 2 , the settling inclined tubes 2 in the same column perpendicular to the inclination direction of the settling inclined tube 2 form a group.

[0041] When it is necessary to clean the settling inclined tube 2, stop the water inlet of the water inlet chamber, pump out a rated amount of sewage through the sludge pumping assembly, so that the water level in the separation tank 1 drops by a rated height, avoiding the water carrying sludge from entering the water guide pipe 4 through the groove of the weir plate 24 during the subsequent cleaning process. Start the air pump and open the electromagnetic valve corresponding to the pipeline connecting the air inlet pipe 6 and the air pump. The gas enters the corresponding air diffuser pipe 7 through the air inlet pipe 6 and sprays out from the air holes 8, forming bubbles around the bottom of the air diffuser pipe 7. The bubbles formed by aeration float up to clean the sludge attached to the inner wall of the corresponding area of the settling inclined tube 2. After the cleaning is completed, close the air pump and the electromagnetic valve on the corresponding pipeline of the air inlet pipe 6, so as to complete the cleaning of the settling inclined tube 2 without emptying the sewage in the separation tank 1, and reduce the duration of the separation tank 1 stopping water inlet.

[0042] During the process of cleaning the settling inclined tube 2 by aeration, the bubbles formed by aeration are easy to rise along the inner wall of the corresponding top of the settling inclined tube 2, and the contact efficiency between the inner wall of the corresponding bottom of the settling inclined tube 2 and the bubbles is low. It is necessary to extend the aeration time, resulting in additional energy consumption and an increase in the duration of the separation tank 1 stopping water inlet, and even may lead to incomplete cleaning of the inner wall of the settling inclined tube 2.

[0043] Embodiment 2, as Figures 1 - 3 、 Figures 5 - 10 , on the basis of Embodiment 1, the inner wall of the settling inclined tube 2 is set to be a regular hexagon. The inner wall of the settling inclined tube 2 can also be set to be a square. Refer to Figure 6 , a through groove is provided between adjacent settling inclined tubes 2 in the same group. A settling belt 9 is movably sleeved inside the same group of settling inclined tubes 2. The settling belt 9 fits the inner wall of the corresponding part of the settling inclined tube 2. Refer to Figure 5 , one side of the settling belt 9 extends out of the settling inclined tube 2 and cooperates with the circulation mechanism. A circulation mechanism is arranged on one side of a group of settling inclined tubes 2 for tensioning the settling belt 9 and driving the settling belt 9 to rotate.Figure 1 and Figure 8 Fixed rings 17 are provided at the top and bottom of the inner wall of the separation box 1 , and the number of the fixed rings 17 is set to be several and corresponds to the settling inclined tubes 2 respectively.

[0044] The settling inclined tube 2 is located between two corresponding fixing rings 17. The adjacent fixing rings 17 at the same height of the same set of settling inclined tubes 2 are fixedly connected. Figure 8 The fixing rings 17 at the same height corresponding to the same set of settling inclined tubes 2 are fixedly connected with connecting plates 18 on both sides of the settling inclined tubes 2. The connecting plates 18 are fixedly connected with the inner wall of the separation box 1. A plurality of guide rods 16 are rotatably connected between the two fixing rings 17 corresponding to the single settling inclined tube 2. The guide rods 16 are cylindrical. The number of guide rods 16 matches the number of ridges of the regular polygon corresponding to the settling inclined tube 2. Figure 6 A plurality of guide rods 16 cooperate to open the sedimentation belt 9 and fit it with the inner wall of the corresponding sedimentation inclined tube 2.

[0045] During the sewage sedimentation process, the sludge completes sedimentation in the sedimentation channel formed by the sedimentation belt 9. When the inner wall of the sedimentation belt 9 needs to be cleaned, aeration is performed through the aeration pipe 7. At the same time, the circulation mechanism drives the sedimentation belt 9 corresponding to the two groups of different sedimentation inclined tubes to circulate. During the aeration cleaning process, the top and bottom surfaces of the inner wall of the sedimentation belt 9 are switched to be in an inclined state, so that the inner walls of the top and bottom of the sedimentation belt 9 are completely cleaned, thereby improving the overall cleaning efficiency and cleaning effect, and further reducing the time when the separation box 1 stops taking in water. The sedimentation belt 9 is reset after rotating the rated angle.

[0046] See also Figure 10 A set of settling inclined tubes 2 are provided with a scraper plate 15 on one side, see Figure 7 The scraper plate 15 is slidably connected to the corresponding settling belt 9, and one side of the scraper plate 15 is bent toward the corresponding settling belt 9. The scraper plate 15 is used to scrape off the sludge on the inner wall of the settling belt 9 when the settling belt 9 rotates in a cycle. Before aeration cleaning, the settling belt 9 is driven to rotate for one round, and part of the sludge is first scraped off by the scraper plate 15. In the subsequent aeration cleaning process, the scraper plate 15 is located outside the aeration range, so that the scraped sludge will not be driven by bubbles to roll to the water surface, and the sludge can settle at the bottom of the settling chamber, further shortening the time for the separation box 1 to stop water inlet. Figure 3 The inner wall of the separation box 1 is provided with two guide grooves 23, and the two guide grooves 23 are respectively located on the inner walls of the front and back sides of the separation box 1, and the sludge is dropped by the scraper plate 15.

[0047] Specifically, the circulation mechanism includes a No. 1 transmission shaft 10 and a No. 2 transmission shaft 11, and a plurality of fixed plates 14 are fixedly arranged at the bottom of the inner wall of the separation box 1, and the number of the plurality of fixed plates 14 corresponds to the number of the circulation mechanism. The scraper plates 15 are fixedly connected to the corresponding fixed plates 14, and the fixed plates 14 are rotatably connected to both the No. 1 transmission shaft 10 and the No. 2 transmission shaft 11. The tops of the No. 1 transmission shaft 10 and the No. 2 transmission shaft 11 are rotatably sleeved with the inner wall of the separation box 1, and a No. 1 rotating cylinder 12 is fixedly sleeved on the outer side of the No. 1 transmission shaft 10, and a No. 2 rotating cylinder 13 is fixedly sleeved on the outer side of the No. 2 transmission shaft 11. The number of the No. 1 rotating cylinder 12 and the No. 2 rotating cylinder 13 are both set to several, and the number of scraper plates 15 corresponding to a group of sedimentation inclined tubes 2 is set to two, and the two scraper plates 15 correspond to the No. 1 rotating cylinder 12 and the No. 2 rotating cylinder 13, respectively. The sedimentation belt 9 includes a No. 1 circulation belt 901 and a No. 2 circulation belt 902.

[0048] The number of No. 1 circulating belts 901 and No. 2 circulating belts 902 corresponds to the number of No. 1 rotating drum 12 and No. 2 rotating drum 13 respectively, and the No. 1 circulating belts 901 and No. 2 circulating belts 902 are arranged alternately, the No. 1 rotating drum 12 is sleeved with the corresponding No. 1 circulating belt 901, and the No. 2 rotating drum 13 is sleeved with the corresponding No. 2 circulating belt 902. Two driving mechanisms are fixedly arranged on the top of the separation box 1, and the two driving mechanisms are respectively located on the front and back top surfaces of the separation 1. The driving mechanisms can drive the No. 1 circulating belt 901 and the No. 2 circulating belt 902 to rotate in the same direction at different speeds, so that the No. 1 circulating belt 901 and the No. 2 circulating belt 902 are misaligned, and the sludge that may be adhered to the gap between the No. 1 circulating belt 901 and the No. 2 circulating belt 902 is sheared open, thereby improving the sludge cleaning efficiency.

[0049] The driving mechanism includes a No. 1 motor 19 and a No. 2 motor 20, both of which are fixedly arranged on the top of the separation box 1, and the output end of the No. 1 motor 19 is connected to the No. 1 transmission shaft 10 corresponding to the single circulation mechanism, and the No. 1 transmission shaft 10 rotates to drive the No. 1 rotating drum 12 to rotate, thereby driving the corresponding No. 1 circulating belt 901 to rotate, and the output end of the No. 2 motor 20 is connected to the No. 2 transmission shaft 11 corresponding to the single circulation mechanism, and the No. 2 transmission shaft 11 rotates to drive the No. 2 rotating drum 13 to rotate, thereby driving the corresponding No. 2 circulating belt 902 to rotate. The tops of the No. 1 transmission shaft 10 and the No. 2 transmission shaft 11 are fixedly sleeved with transmission wheels 21. The corresponding transmission wheels 21 between two adjacent No. 1 transmission shafts 10 and between two adjacent No. 2 transmission shafts 11 are connected through transmission belts 22. The transmission wheels 21 can be set as sprockets, and the transmission belts 22 can be correspondingly set as chains. The number of transmission wheels 21 corresponding to a single No. 1 transmission shaft 10 and No. 2 transmission shaft 11 is set to at least one, and the rotation of the No. 1 transmission shaft 10 and the No. 2 transmission shaft 11 respectively drives the corresponding adjacent No. 1 transmission shaft 10 and No. 2 transmission shaft 11 to rotate.

[0050] Embodiment 3, as shown in Figures 11 - 14 , different from Embodiment 2, the inner wall of the sedimentation inclined tube 2 is circular, and a rotating tube is movably sleeved inside the sedimentation inclined tube 2. The rotating tube includes a plurality of arc-shaped plates 25. Two fixed blocks 35 are fixedly connected to the top of the separation box 1. The two fixed blocks 35 are respectively located on the front and back of the separation box 1. One side of one of the two fixed blocks 35 is fixedly connected to a side plate 38. One side of the side plate 38 is fixedly connected to a third motor 37. One of the two fixed blocks 35 is rotatably provided with a second sprocket 31 through a rotating shaft. The second sprocket 31 is in transmission connection with the output end of the third motor 37. Adjacent groups of sedimentation inclined tubes 2 can be in transmission connection through the rotating shaft corresponding to the second sprocket 31, a sprocket, and a chain. Support plates 36 are provided on both the top and bottom inside the separation box 1. The support plate 36 located at the bottom is fixedly connected to the separation box 1.

[0051] The support plate 36 located at the top is fixedly connected to the fixed block 35. A plurality of support rings 27 are fixedly sleeved inside the support plate 36. The number of support rings 27 is adapted to the number of sedimentation inclined tubes 2. The height of the support ring 27 located at the top is lower than the height of the air inlet pipe 6, so that the arranged aeration pipe 7 is located inside the support ring 27. The inside of the support ring 27 is rotationally clamped with a connection ring 28. The connection ring 28 can only rotate relative to the support ring 27. The connection ring 28 located at the top is fixedly sleeved with a first sprocket 30. A plurality of first sprockets 30 are in transmission connection with the second sprocket 31 through a transmission chain 32. One end of the connection ring 28 close to the sedimentation inclined tube 2 is fixedly sleeved with a transmission ring 29.

[0052] A connecting rod 26 is slidably sleeved inside the transmission ring 29. The connecting rod 26 can axially slide relative to the transmission ring 29. The connecting rod 26 is fixedly connected to the corresponding rotating tube. The inner wall of the rotating tube is the sedimentation surface of the sludge. When the inside of the rotating tube is aerated and cleaned, the third motor 37 drives the second sprocket 31 to rotate. The second sprocket 31 drives the first sprocket 30 to rotate. The first sprocket 30 drives the connection ring 28 to rotate. The connection ring 28 drives the transmission ring 29 to rotate. The transmission ring 29 drives the connecting rod 26 to rotate. The connecting rod 26 drives the rotating tube to rotate. While aerating and cleaning, the inner wall is switched to the top, improving the cleaning effect on the inner wall of the rotating tube.

[0053] Specifically, the number of the connecting rods 26 is adapted to the number of the arc-shaped plates 25. The connecting rods 26 are fixedly connected to the corresponding arc-shaped plates 25. The bottom of the support ring 27 is fixedly connected to an adjusting ring 33. An adjusting groove 34 is formed on the outer side of the adjusting ring 33. Refer to Figure 14 , the number of the adjusting grooves 34 is set to be several and several adjusting grooves 34 are arranged on the adjusting ring 33 at equal intervals. A protrusion is formed between two adjacent adjusting grooves 34. The adjusting rings 33 located at the top and bottom corresponding to a single rotating tube are used to adjust the axial movement of the arc-shaped plate 25. The connecting rod 26 rotates to drive the arc-shaped plate 25 to rotate.

[0054] The two connecting rods 26 corresponding to the arc-shaped plate 25 are respectively corresponding to the positions of the adjusting groove 34 and the protrusion. That is, when the connecting rod 26 at the bottom contacts the adjusting groove 34, the connecting rod 26 at the top drives the position corresponding to the protrusion position, driving the corresponding arc-shaped plate 25 to descend. The adjacent arc-shaped plate 25 corresponds to the connecting rod 26 at the bottom contacting the protrusion of the adjusting ring 33, driving the arc-shaped plate 25 to ascend, and the adjacent arc-shaped plates 25 move in a staggered manner to shear the large pieces of silt that may adhere to the joint. The connecting rod 26 rotates relative to the adjusting ring 33 and corresponds to different positions of the adjusting ring 33, so that the arc-shaped plate 25 alternately contacts the protrusion of the adjusting ring 33 and the adjusting groove 34, driving the arc-shaped plate 25 to reciprocate axially, vibrating off the sludge adhering to the inner wall, further improving the cleaning effect. After the cleaning is completed, the rotating pipe rotates by a rated angle and resets.

[0055] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An inclined tube sedimentation tank with backwashing function, comprising a separation box (1), a partition (3) is fixedly arranged on the inner side of the separation box (1) to separate the separation box (1) into a water inlet chamber and a sedimentation chamber, a plurality of inclined sedimentation tubes (2) are fixedly arranged on the inner side of the separation box (1), the inclined sedimentation tubes (2) are arranged in an inclined manner, and the inclined sedimentation tubes (2) in the same row perpendicular to the inclined direction of the inclined sedimentation tubes (2) form a group, characterized in that: An aeration mechanism is arranged on the inner side of the separation box (1), the aeration mechanism comprises a plurality of aeration pipes (7), the aeration pipes (7) are arranged in an inclined manner and the axis thereof is parallel to the axis of the settling inclined pipe (2), an adjustment mechanism is arranged on the inner side of the separation box (1), and a shielding member is arranged on the inner side of the separation box (1), the shielding member is used to shield the inner wall of the settling inclined pipe (2); The regulating mechanism is used to cooperate with the aeration mechanism to clean the inner wall of the shielding member. The aeration mechanism can perform aeration through an aeration pipe (7) extending into the bottom of the settling inclined tube (2), and utilizes bubbles generated by aeration to pass through the inner side of the settling inclined tube (2) to clean the inner wall of the shielding member. The regulating mechanism can drive the shielding members corresponding to at least one group of the settling inclined tubes (2) to rotate cyclically, and switch the top and bottom surfaces of the inner wall of the shielding member during aeration by the aeration mechanism.

2. The inclined tube sedimentation tank with backwashing function according to claim 1, characterized in that: The inner wall of the settling inclined tube (2) is arranged in a regular polygonal shape, and through grooves are provided between adjacent settling inclined tubes (2) of the same group. The shielding member is arranged as a settling belt (9), and a single settling belt (9) is movably sleeved on the inner side of a corresponding group of settling inclined tubes (2). One side of the settling belt (9) extends out of the settling inclined tube (2) to cooperate with an adjusting mechanism, and the adjusting mechanism is used to tension the settling belt (9) and can drive the settling belt (9) to cyclically rotate. A plurality of fixing rings (17) are provided at the top and bottom positions of the inner wall of the separation box (1); adjacent fixing rings (17) at the same height corresponding to the same group of sedimentation inclined tubes (2) are fixedly connected; a plurality of connecting plates (18) are provided on the inner wall of the separation box (1); the connecting plates (18) are fixedly connected to the fixing rings (17); a plurality of guide rods (16) are rotatably connected between two fixing rings (17) corresponding to a single sedimentation inclined tube (2); and the plurality of guide rods (16) cooperate with the tensioning sedimentation belt (9).

3. The inclined tube sedimentation tank with backwashing function according to claim 2 is characterized in that: A scraper plate (15) is provided on one side of a group of the settling inclined tubes (2) for scraping off sludge on the inner wall of the settling belt (9) when the settling belt (9) circulates and rotates. Two guide grooves (23) are provided on the inner wall of the separation box (1). The scraper plate (15) is slidably connected to the corresponding settling belt (9). A plurality of fixed plates (14) are fixedly provided at the bottom of the inner wall of the separation box (1). The scraper plate (15) is fixedly connected to the corresponding fixed plates (14).

4. The inclined tube sedimentation tank with backwashing function according to claim 3 is characterized in that: The adjustment mechanism also includes a No. 1 transmission shaft (10) and two driving mechanisms. The No. 1 transmission shaft (10) and the No. 2 transmission shaft (11) are both rotatably sleeved with the inner wall of the separation box (1) and the fixed plate (14). A plurality of No. 1 rotating cylinders (12) are fixedly sleeved on the outer side of the No. 1 transmission shaft (10). The driving mechanism can drive the No. 1 transmission shaft (10) to rotate.

5. The inclined tube sedimentation tank with backwashing function according to claim 4, characterized in that: The driving mechanism comprises a No. 1 motor (19) and a No. 2 motor (20); the output end of the No. 1 motor (19) is in transmission connection with the corresponding No. 1 transmission shaft (10); a transmission wheel (21) is fixedly sleeved on the top of the No. 1 transmission shaft (10); the corresponding transmission wheels (21) between two adjacent No. 1 transmission shafts (10) are in transmission connection via a transmission belt (22); and the No. 1 motors (19) are all fixedly arranged on the top of the separation box (1).

6. The inclined tube sedimentation tank with backwashing function according to claim 5, characterized in that: The regulating mechanism further comprises a No. 2 transmission shaft (11), the No. 2 transmission shaft (11) is rotatably sleeved with the inner wall of the separation box (1) and the fixed plate (14), a plurality of No. 2 rotating cylinders (13) are fixedly sleeved on the outer side of the No. 2 transmission shaft (11), the sedimentation belt (9) comprises a plurality of No. 1 circulation belts (901) and No. 2 circulation belts (902), the No. 1 circulation belts (901) and No. 2 circulation belts (902) are arranged alternately, the No. 1 rotating cylinder (12) is sleeved with the corresponding No. 1 circulation belt (901), and the No. 2 rotating cylinder (13) is sleeved with the corresponding No. 2 circulation belt (902); The driving mechanism further comprises a No. 2 motor (20), the output end of the No. 2 motor (20) being transmission-connected to the corresponding No. 2 transmission shaft (11), a transmission wheel (21) being fixedly sleeved on the top of the No. 2 transmission shaft (11), the corresponding transmission wheels (21) between two adjacent No. 2 transmission shafts (11) being transmission-connected via a transmission belt (22), and the No. 2 motor (20) being fixedly arranged on the top of the separation box (1).

7. The inclined tube sedimentation tank with backwashing function according to claim 1, characterized in that: The inner wall of the sedimentation inclined tube (2) is circular, the shielding member is set as a rotating tube, and the rotating tube is movably connected with the corresponding sedimentation inclined tube (2). The top of the separation box (1) is fixedly connected with two fixed blocks (35), and the top of the separation box (1) is provided with a side plate (38), and the side plate (38) is fixedly connected with the fixed block (35). One side of the side plate (38) is fixedly connected with a No. 3 motor (37), and the output end of the No. 3 motor (37) is transmission-connected with a No. 2 sprocket (31), and one of the two fixed blocks (35) is rotatably provided with the No. 2 sprocket (31); The top and bottom of the inner side of the separation box (1) are both provided with support plates (36); the separation box (1) and the fixed block (35) are respectively fixedly connected to the two support plates (36); a plurality of support rings (27) are fixedly sleeved on the inner side of the support plate (36); a connecting ring (28) is rotatably engaged on the inner side of the support ring (27); a first sprocket (30) is fixedly sleeved on the connecting ring (28) located at the top of the separation box (1); a plurality of the first sprockets (30) are transmission-connected to the second sprocket (31) via a transmission chain (32); a transmission ring (29) is fixedly sleeved on one end of the connecting ring (28) close to the sedimentation inclined tube (2); a connecting rod (26) is slidably sleeved on the inner side of the transmission ring (29); and the connecting rod (26) is fixedly connected to the corresponding rotating tube.

8. The inclined tube sedimentation tank with backwashing function according to claim 7, characterized in that: The rotating tube comprises a plurality of arc-shaped plates (25), the number of connecting rods (26) matches the number of the arc-shaped plates (25), the connecting rods (26) are fixedly connected to the corresponding arc-shaped plates (25), an adjusting ring (33) is fixedly connected to the bottom of the supporting ring (27), an adjusting groove (34) is provided on the outer side of the adjusting ring (33), the number of the adjusting grooves (34) is set to be a plurality, and a bulge is formed between two adjacent adjusting grooves (34).

9. The inclined tube sedimentation tank with backwashing function according to claim 1, characterized in that: The aeration mechanism comprises an air pump, an air inlet pipe (6) is fixedly arranged on the top of the inner wall of the separation box (1), the number of the air inlet pipe (6) is set to at least one, the aeration pipe (7) is fixedly connected to the air inlet pipe (6), a plurality of aeration holes (8) are opened on the outer wall of the bottom of the aeration pipe (7), and the air inlet pipe (6) is connected to the air pump through a pipeline provided with a solenoid valve.

10. The inclined tube sedimentation tank with backwashing function according to claim 1, characterized in that: The outer wall of the sedimentation inclined tube (2) is arranged in the shape of a regular polygon, a water guide pipe (4) is fixedly arranged on one side of the top of the separation box (1), a weir plate (24) is fixedly arranged on one side of the water guide pipe (4), a groove for the flow of settled water is provided on the top surface of the weir plate (24), and a water storage tank (5) connected to the water guide pipe (4) is fixedly arranged on the back side of the separation box (1).

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