A sludge cleaning device for sewage treatment

Abstract

The application discloses a kind of sediment cleaning devices for sewage treatment, it includes sedimentation tank, sedimentation tank is equipped with inlet pipe and outlet pipe, filter plate is further fixed in sedimentation tank, filter plate upper end surface is equipped with filter screen and is opened with several flow holes along vertical direction;Filter plate upper end is equipped with several groups of sealing plate sealing plate is rotatably connected with sedimentation tank, sedimentation tank is equipped with for driving all sealing plate rotation drive assembly;Sealing plate and filter plate are equipped with for cleaning wrong filter screen cleaning assembly, filter plate is opened with for discharging sediment cleaning port, and sedimentation tank is installed for blocking cleaning port baffle;Sedimentation tank one end is installed for the secondary filtration of sediment collection tank;Filter plate lower end is equipped with two groups of blocking plate, blocking plate is rotatably connected with sedimentation tank, connecting assembly is arranged between blocking plate and drive assembly, drive assembly is rotated by connecting assembly and drives blocking plate.This application has the effect of improving the sedimentation efficiency of sewage.

Description

Technical Field

[0001] This invention relates to the technical field of wastewater treatment equipment, and in particular to a sediment removal device for wastewater treatment. Background Technology

[0002] Wastewater treatment refers to the process of discharging wastewater into a water body or purifying wastewater to meet reuse standards. Common wastewater treatment methods can be broadly categorized into three types: physical, chemical, and biological methods. Because some wastewater contains solid impurities, sedimentation treatment is necessary during wastewater purification.

[0003] Related technology can be found in Chinese Patent No. CN216377697U, which discloses a wastewater treatment sludge cleaning device, relating to the field of wastewater treatment technology. Specifically, it includes a sedimentation tank, a first filter screen installed on the inner wall of the sedimentation tank, a first motor installed on the outer wall of the sedimentation tank, a drive shaft mounted on the output shaft of the first motor, a driven shaft rotatably connected to the inner wall of the sedimentation tank, a belt mounted on the outer surface of the driven shaft, a scraper mounted on the outer surface of the belt, and a second motor installed on one side of the sedimentation tank, with a conveying roller mounted on the output shaft of the second motor. This wastewater treatment sludge cleaning device, through the coordinated arrangement of the first filter screen, first motor, drive shaft, driven shaft, belt, and scraper, can increase the filtration area during use and remove sludge while sedimentation, thereby reducing the sludge content in wastewater and improving cleaning efficiency.

[0004] Regarding the aforementioned technologies, when sludge settles on the first filter screen, it is easy to clog the first filter screen, which in turn reduces the speed at which sewage passes through the first filter screen and affects the sedimentation efficiency of the sewage. If the sediment is cleaned by scraping before the sewage has completely passed through the first filter screen, the sediment is likely to float up again and mix with the sewage, requiring it to settle again, which results in a low sedimentation efficiency of the sedimentation tank. Summary of the Invention

[0005] In order to improve the settling efficiency of sewage, this application provides a settling cleaning device for sewage treatment.

[0006] This application provides a sediment removal device for wastewater treatment, which adopts the following technical solution:

[0007] A wastewater treatment sedimentation cleaning device includes a sedimentation tank with an inlet pipe and an outlet pipe. The sedimentation tank contains: a filter plate fixedly connected inside the tank and located between the inlet and outlet pipes; the filter plate has several vertically openings with a filter screen on its upper surface; several sets of sealing plates, all located at the upper end of the filter screen; when all sealing plates are vertical, channels are formed between adjacent sealing plates and between the sealing plates and the sedimentation tank; when all sealing plates are horizontal, the channels between adjacent sealing plates and between the sealing plates and the sedimentation tank are closed; the sedimentation tank is equipped with a drive assembly for rotating all sealing plates; and a cleaning assembly located within the sedimentation tank. Between the sealing plate and the filter screen, a cleaning port is provided for cleaning the sediment on the upper surface of the filter screen. The filter plate has a cleaning port at one end along its length. The settling tank has a baffle corresponding to the cleaning port, and the settling tank is equipped with a cylinder for driving the baffle to move. A collection tank is located at the end of the settling tank near the cleaning port. The collection tank is fixedly connected to an absorption pipe that communicates with the cleaning port. The absorption pipe is fixedly connected to a sludge pump. Two sets of baffles are located at the lower end of the filter plate. Both baffles are rotatably connected to the settling tank. When both baffles are in a horizontal state, the upper surface of the baffles is in contact with the lower surface of the filter plate. A connecting component is provided between the baffles and the sealing plate. The driving component drives the baffles to rotate through the connecting component.

[0008] By adopting the above technical solution, wastewater is transported into the settling tank through the inlet pipe. Initially, all sealing plates are vertical. Wastewater passes through the channels between adjacent sealing plates and accumulates on the filter plates. Water in the wastewater passes through the filter screen, flows along the flow holes of the filter plates towards the lower end of the settling tank, and is finally discharged through the outlet pipe. Impurities in the wastewater settle at the upper end of the filter screen. When the sediment affects the filtration efficiency of the filter screen, the drive assembly rotates all sealing plates, bringing them to a horizontal position. At this time, the drive assembly, through the connecting assembly, drives the water-blocking plate to seal the flow holes, forming a sealed chamber between the sealing plates and the filter plates. The operating cylinder opens the baffle, connecting the cleaning port to the absorption pipe. A sludge pump then drives the wastewater and sediment between the sealing plates and the filter plates into the collection tank along the absorption pipe, facilitating sediment removal by the operator. Simultaneously, the sludge pump operates, and the cleaning assembly cleans the filter screen, improving the efficiency of removing sediment from the filter screen. After cleaning the filter screen, the cylinder is operated to move the baffle to block the cleaning port, and all the sealing plates are slowly rotated vertically. At this time, the sewage continues to flow onto the filter screen along the channel between the adjacent sealing plates, which facilitates the continued sedimentation of the sewage. When cleaning the filter screen, the sealing plates separate the sediment and the upper sewage, which helps to reduce the probability of the sediment floating up again and mixing with the sewage, and helps to improve the sedimentation efficiency of the sewage.

[0009] Optionally, a rotating column is fixedly connected to one end of the sealing plate along its length. The rotating column passes through the settling tank and is rotatably connected to the settling tank. The drive assembly includes a motor, a sprocket, several sprockets, and a chain. The motor is fixedly connected to the settling tank. The sprocket is coaxially fixed to the output shaft of the motor. The sprockets correspond to the rotating columns and are coaxially fixed to their respective rotating columns. The chain is wound around the outside of the sprockets and all the sprockets. All the sprockets and the sprockets are engaged with the chain.

[0010] By adopting the above technical solution, motor one drives sprocket one to rotate. When sprocket one rotates, it drives all sprocket two to rotate through chain one. When sprocket two rotates, it drives the corresponding rotating column to rotate, and then drives the corresponding sealing plate to rotate synchronously through the rotating column.

[0011] Optionally, the rotating column is located on one side of the sealing plate along the width direction, and an upper plate is fixedly connected to the side of the sealing plate away from the rotating column along the length direction, and a lower plate is fixedly connected to the side of the sealing plate close to the rotating column along the length direction. The upper plate and the lower plate correspond one-to-one. When the sealing plate is in a horizontal state, the lower end face of any upper plate is in contact with the upper end face of the corresponding lower plate.

[0012] By adopting the above technical solution, when the sealing plate is in a vertical position, the upper plate is above the lower plate in the same sealing plate. When the sealing plate rotates, it drives the upper plate to rotate downward. At this time, the lower plate of the adjacent sealing plate rotates upward. The upper plate of any sealing plate abuts against the lower plate of the adjacent sealing plate. The cooperation between the upper plate and the lower plate helps to improve the sealing effect between adjacent sealing plates and reduce the probability of sediment passing through the gap between adjacent sealing plates and mixing with the sewage above the sealing plate.

[0013] Optionally, the cleaning assembly includes a second motor, two drive rollers, two moving belts, and several scrapers. The two drive rollers are located at both ends of the settling tank along its length and are rotatably connected to the settling tank. The second motor is fixedly connected to the outside of the settling tank, and the output shaft of the second motor passes through the settling tank and is coaxially fixed with any one of the drive rollers. The moving belts are tumblingly connected between the two drive rollers, and the two moving belts are located at both ends of the drive rollers along their length. All scrapers are evenly arranged circumferentially along the moving belts, and the scrapers are located between the two moving belts and are fixedly connected to both moving belts. The scraper located at the lower end of the moving belt is in contact with the upper surface of the filter screen.

[0014] By adopting the above technical solution, the second motor drives the corresponding drive roller to rotate. Under the support of the two drive rollers, the drive roller drives the two moving belts to rotate. When the moving belts rotate, they drive all the scrapers to move. When the scrapers move to the lower end of the moving belt, they clean the filter screen.

[0015] Optionally, a screen cylinder is rotatably connected inside the collection box, and the end of the absorption pipe away from the settling box extends into the screen cylinder. A receiving cavity is formed between the screen cylinder and the inner wall of the collection box. A sewage discharge pipe communicating with the receiving cavity is fixedly connected to the collection box. A motor for driving the screen cylinder to rotate is fixedly connected to the lower end of the collection box. A filter cylinder is laid on the inner wall of the screen cylinder. The screen cylinder is provided with several positioning bolts. The positioning bolts pass through the filter cylinder and are threadedly connected to the screen cylinder. The collection box is provided with a cover plate for sealing the filter cylinder.

[0016] By adopting the above technical solution, the wastewater mixed with sediment enters the screen cylinder along the absorption pipe. At this time, the cover plate is in a closed state. After the sewage discharge is completed, the motor drives the screen cylinder to rotate. Under the limiting action of the positioning bolts, the screen cylinder rotates synchronously with the filter cylinder and sediment. Under the action of centrifugal force, the water in the sediment passes through the filter cylinder and screen cylinder into the cavity between the screen cylinder and the collection box, and is discharged along the sewage pipe. When the screen cylinder rotates, the upper end of the screen cylinder is sealed by the cover plate, which helps to reduce the probability of sediment or sewage splashing in the screen cylinder. When cleaning the sediment in the screen cylinder, the cover plate is opened, and the positioning bolts are removed to release the positioning of the filter cylinder, making it easy to remove the filter cylinder and sediment together from the screen cylinder, which is more convenient for cleaning sediment.

[0017] Optionally, the collection box is fixedly connected to a support ring, which is located at the upper end of the screen cylinder and is rotatably connected to the screen cylinder. The cover plate is located at the upper end of the support ring and is hinged to the collection box. The upper end of the collection box is provided with a cylinder 2 for driving the cover plate to open and close.

[0018] By adopting the above technical solutions, the support ring helps to improve the stability of the screen cylinder when it rotates, and at the same time supports the absorption pipe. The cylinder 2 helps to improve the convenience of opening or closing the cover plate.

[0019] Optionally, the connecting assembly includes a second chain, a third sprocket, a fourth sprocket, a first gear set, a rotating rod, and two second gear sets. The third sprocket is fixed coaxially with the fourth sprocket, the fourth sprocket is rotatably connected to the settling box, the second chain meshes between the fourth and the third sprocket, both baffle plates are fixedly connected with round rods, the round rods pass through the settling box and are rotatably connected to the settling box, the rotating rod is rotatably connected to the settling box, the two second gear sets correspond to the two round rods respectively, the rotating rod drives the round rod to rotate through the second gear set, the first gear set is located between the fourth sprocket and the rotating rod, and the fourth sprocket drives the rotating rod to rotate through the first gear set.

[0020] By adopting the above technical solution, motor one drives sprocket one to rotate and simultaneously drives sprocket three to rotate. Under the transmission action of chain two, sprocket three drives sprocket four to rotate. Sprocket four drives rotating rod to rotate through gear set one. When rotating rod rotates, it drives corresponding round rod to rotate through two gear sets two. In turn, the round rod drives the barrier plate to rotate, realizing the synchronous rotation of the barrier plate and the sealing plate.

[0021] Optionally, a cleaning pipe is fixedly connected inside the settling tank. The upper end of the cleaning pipe is connected to two sets of flexible hoses corresponding to the baffle plate. The upper end of the baffle plate is opened with a flushing hole that communicates with all the flow holes. The end of the flexible hose away from the cleaning pipe passes through the baffle plate and is connected to all the flushing holes. The cleaning pipe is equipped with a flushing pump for driving sewage to flow along the cleaning pipe to the flexible hose.

[0022] By adopting the above technical solution, when the barrier plate is in a horizontal state, the flushing hole is connected to the corresponding flow hole. When the filter screen is blocked by sediment, the flushing pump is operated to transport the filtered sewage from the lower end of the settling tank to the hose along the cleaning pipe. Under the action of the cleaning pump, the sewage is sprayed out from the flushing hole to the flow hole, and then the filter screen is flushed from below, making it more convenient to clean the filter screen.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Wastewater is pumped into the settling tank through the inlet pipe. Initially, all sealing plates are vertical. Wastewater passes through the channels between adjacent sealing plates and accumulates on the filter plates. Water in the wastewater passes through the filter screen, flows along the flow holes of the filter plates towards the lower end of the settling tank, and is eventually discharged through the outlet pipe. Impurities in the wastewater settle at the upper end of the filter screen. When the sediment affects the filtration efficiency of the filter screen, the drive assembly rotates all sealing plates, bringing them to a horizontal position. At this time, the drive assembly, through the connecting assembly, drives the water-blocking plate to seal the flow holes, forming a sealed chamber between the sealing plates and the filter plates. The operating cylinder opens the baffle, connecting the cleaning port to the absorption pipe. The sludge pump then pumps the wastewater and sediment between the sealing plates and the filter plates into the collection tank along the absorption pipe, facilitating sediment removal by the operator. Simultaneously, the cleaning assembly cleans the filter screen, improving the efficiency of removing sediment from the filter screen. After cleaning the filter screen, the cylinder is operated to drive the baffle to block the cleaning port, and all the sealing plates are slowly rotated vertically. At this time, the sewage continues to flow onto the filter screen through the channel between the adjacent sealing plates, which facilitates the continued settling of the sewage. When cleaning the filter screen, the sealing plates separate the sediment and the upper sewage, which helps to reduce the probability of the sediment floating up again and mixing with the sewage, and helps to improve the settling efficiency of the sewage.

[0025] 2. When the sealing plate is in a vertical position, the upper plate is above the lower plate in the same sealing plate. When the sealing plate rotates, it causes the upper plate to rotate downward. At this time, the lower plate of the adjacent sealing plate rotates upward. The upper plate of any sealing plate abuts against the lower plate of the adjacent sealing plate. The cooperation between the upper and lower plates helps to improve the sealing effect between adjacent sealing plates and reduces the probability of sediment passing through the gap between adjacent sealing plates and mixing with the sewage above the sealing plate.

[0026] 3. The wastewater mixed with sediment enters the screen cylinder through the absorption pipe. At this time, the cover plate is in the closed state. After the sewage discharge is completed, the motor drives the screen cylinder to rotate. Under the limiting action of the positioning bolts, the screen cylinder rotates synchronously with the filter cylinder and sediment. Under the action of centrifugal force, the water in the sediment passes through the filter cylinder and screen cylinder into the cavity between the screen cylinder and the collection box, and is discharged along the sewage pipe. When the screen cylinder rotates, the upper end of the screen cylinder is sealed by the cover plate, which helps to reduce the probability of sediment or sewage splashing in the screen cylinder. When cleaning the sediment in the screen cylinder, the cover plate is opened, and the positioning bolts are removed to release the positioning of the filter cylinder, making it easy to remove the filter cylinder and sediment together from the screen cylinder, which is more convenient for cleaning sediment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the embodiment.

[0028] Figure 2 This is a schematic diagram designed to highlight the internal structure of the settling tank.

[0029] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle.

[0030] Figure 4 This is a schematic diagram designed to highlight the structure of the driving component.

[0031] Figure 5 This is a schematic diagram designed to highlight the panel structure.

[0032] Figure 6 This is a schematic diagram designed to highlight the structure of the cleanup components.

[0033] Figure 7 yes Figure 2 Enlarged schematic diagram of part B.

[0034] Explanation of reference numerals in the attached diagram: 1. Settling tank; 11. Inlet pipe; 12. Outlet pipe; 13. Baffle; 14. Cylinder 1; 2. Filter plate; 21. Flow hole; 22. Filter screen; 23. Cleaning port; 3. Sealing plate; 31. Rotating column; 32. Upper plate; 33. Lower plate; 4. Drive assembly; 41. Motor 1; 42. Sprocket 1; 43. Sprocket 2; 44. Chain 1; 5. Cleaning assembly; 51. Motor 2; 52. Drive roller; 53. Moving belt; 54. Scraper; 6. 61. Collection box; 62. Absorption pipe; 63. Sludge pump; 64. Screen cylinder; 65. Motor three; 66. Filter cylinder; 67. Positioning bolt; 68. Cover plate; 69. Support ring; 70. Cylinder two; 81. Sewage pipe; 72. Barrier plate; 83. Round rod; 84. Flushing hole; 85. Connecting assembly; 86. Chain two; 87. Sprocket three; 88. Sprocket four; 99. Gear set one; 80. Rotating rod; 91. Gear set two; 92. Cleaning pipe; 93. Flushing pump; 94. Hose. Detailed Implementation

[0035] The present application will be further described in detail below with reference to all the accompanying drawings.

[0036] This application discloses a sediment removal device for sewage treatment.

[0037] Example:

[0038] Reference Figure 1 and Figure 2 A wastewater treatment sedimentation cleaning device includes a sedimentation tank 1, which is rectangular and hollow, with an opening at the top. An inlet pipe 11 is installed at the top of the sedimentation tank 1 for conveying wastewater into it, and an outlet pipe 12 is fixedly connected to the bottom of the sedimentation tank 1, connecting the interior of the sedimentation tank 1 to the outside.

[0039] Reference Figure 2 and Figure 3 A filter plate 2 is fixed inside the settling tank 1, located in the middle of the settling tank 1. An inlet pipe 11 is located at the upper end of the filter plate 2, and wastewater flows along the inlet pipe 11 towards the upper surface of the filter plate 2. A filter screen 22 is provided at the upper end of the filter plate 2, and multiple evenly spaced flow holes 21 are vertically opened on the filter plate 2. After being filtered by the filter screen 22, the wastewater flows through the flow holes 21 towards the lower end of the settling tank 1 and accumulates within the settling tank 1. When the wastewater accumulates to a certain level at the lower end of the filter plate 2, the operator manipulates the outlet pipe 12 to discharge the water.

[0040] Reference Figure 2 and Figure 3 While the wastewater above the filter plate 2 is being filtered, it also settles at the upper end of the filter screen 22. The upper end of the settling tank 1 is equipped with multiple sets of evenly arranged sealing plates 3, all located between the inlet pipe 11 and the filter plate 2. The sealing plates 3 are rotatably connected to the settling tank 1. Initially, all sealing plates 3 are in a vertical position, with certain gaps between adjacent sealing plates 3 and between the side sealing plates 3 and the settling tank 1. These gaps form channels for wastewater discharged along the inlet pipe 11 to pass through.

[0041] Reference Figure 2 and Figure 4All sealing plates 3 are located inside the sewage. A rotating column 31 is fixed to one end of each sealing plate 3. All rotating columns 31 of the sealing plates 3 pass through the settling tank 1 and are rotatably connected to it. Rotation of the rotating column 31 drives the sealing plate 3 to rotate. The settling tank 1 is equipped with a drive assembly 4, which includes a motor 41, a sprocket 42, multiple sprockets 43, and a chain 44. Each sprocket 43 corresponds to a rotating column 31, and rotation of the sprocket 43 drives the rotating column 31 to rotate. The motor 41 is fixedly connected to the end of the settling tank 1 near the rotating column 31. The sprocket 42 is coaxially fixed to the output shaft of the motor 41. The operator manipulates the motor 41 to drive the sprocket 42 to rotate.

[0042] Reference Figure 4 and Figure 5 Chain 44 is wound around sprocket 42 and all sprockets 43, and chain 44 meshes with both sprockets 42 and 43. When sprocket 42 rotates, chain 44 drives all sprockets 43 to rotate, which in turn drives the corresponding rotating column 31 to rotate slowly. When the rotating column 31 rotates, it causes the sealing plate 3 to rotate from a vertical state to a horizontal state. The sealing plate 3 is a rectangular plate. The rotating column 31 is located on one side of the sealing plate 3 along its width. An upper plate 32 is fixed on the side of the sealing plate 3 away from the rotating column 31. When the sealing plate 3 is in a vertical state, the upper plate 32 is located above the rotating column 31. When the sealing plate 3 rotates, it drives the upper plate 32 to rotate.

[0043] Reference Figure 4 and Figure 5 A lower plate 33 corresponding to the upper plate 32 is fixed to the side of the sealing plate 3 near the rotating column 31. When the sealing plate 3 is in a vertical state, the lower plate 33 is located below the rotating column 31. When it is necessary to clean the sediment on the filter screen 22, the operator operates the motor 41 to drive all the sealing plates 3 to rotate, so that the sealing plates 3 rotate from a vertical state to a horizontal state. When the sealing plates 3 are in a horizontal state, the upper plate 32 and the lower plate 33 of two adjacent sealing plates 3 cooperate with each other. At this time, the upper plate 32 of any sealing plate 3 abuts against the lower plate 33 of another sealing plate 3, and the lower end face of the upper plate 32 and the upper end face of the lower plate 33 are in contact. A stop block is fixed along the inner wall of the sedimentation tank 1, and the stop block cooperates with the upper plate 32 or the lower plate 33 of the sealing plate 3 located on the side.

[0044] Reference Figure 2 and Figure 4When all sealing plates 3 are in a horizontal position, the gaps between adjacent sealing plates 3 are closed. At this time, all sealing plates 3 and the settling tank 1 cooperate to separate the sewage above the filter plate 2. The cooperation between the upper plate 32 and the lower plate 33 helps to improve the sealing effect between adjacent sealing plates 3 and reduce the probability of the sediment below the sealing plate 3 mixing with the sewage above the sealing plate 3 again. The settling tank 1 is also equipped with two sets of baffle plates 7. Both baffle plates 7 are located directly below the filter plate 2. A round rod 71 is fixedly connected to one side of the baffle plate 7 along the width direction. The round rod 71 is inserted into the settling tank 1 and is rotatably connected to the settling tank 1.

[0045] Reference Figure 4 and Figure 5 The settling tank 1 is supported by the baffle plate 7 by the round rod 71, so that the baffle plate 7 rotates around the round rod 71. In the initial state, when both baffle plates 7 are in a vertical position, the filtered sewage passes through the gap between the two baffle plates 7 and enters the settling tank 1. The horizontal plane of the sewage accumulated at the lower end of the settling tank 1 is a certain distance away from the lower end face of the filter plate 2.

[0046] Reference Figure 4 and Figure 5 A connecting component is provided between the barrier plate 7 and the drive assembly 4. The connecting component includes a second chain 81, a third sprocket 82, a fourth sprocket 83, a first gear set 84, a rotating rod 85, and two second gear sets 86. A round rod 71 near the first motor 41 passes through the settling box 1 and is rotatably connected to the settling box 1. The third sprocket 82 is coaxially fixed with the first sprocket 42. The first motor 41 drives the first sprocket 42 to rotate while simultaneously driving the first sprocket 42 to rotate. The rotating rod 85 is rotatably connected to the settling box 1 in the transverse direction. The second gear sets 86 correspond one-to-one with the round rod 71 near the first motor 41, and the second gear sets 86 are located between the round rod 71 and the rotating rod 85.

[0047] Reference Figure 4 and Figure 5 When the operator rotates the rotating rod 85, the rotating rod 85 drives the corresponding round rod 71 to rotate through two gear sets 86. When the round rod 71 rotates, it drives the corresponding barrier plate 7 to rotate. When the barrier plate 7 rotates from the vertical state to the horizontal state, the upper end face of the barrier plate 7 is in contact with the lower end face of the filter plate 2. At this time, the barrier plate 7 and all the sealing plates 3 cooperate to form an independent chamber.

[0048] Reference Figure 4 and Figure 5Sprocket 43 is rotatably connected to the settling box 1 and is located at the lower end of sprocket 1 42. Gear set 1 84 is located between sprocket 43 and rotating rod 85. When sprocket 43 rotates, it drives rotating rod 85 to rotate through gear set 1 84. Chain 2 81 is wound around the outside of sprocket 3 82 and sprocket 43, and both sprocket 43 and sprocket 3 82 are meshed with chain 2 81. When sprocket 3 82 rotates, it drives sprocket 4 83 to rotate through chain 2 81, which in turn drives the two round rods 71 ​​to rotate through rotating rod 85, realizing the synchronous rotation of sealing plate 3 and barrier plate 7.

[0049] Reference Figure 2 and Figure 4 A vertically arranged cleaning pipe 9 is installed at the lower end of the settling tank 1. The cleaning pipe 9 is equipped with a flushing pump 91. When there is sewage in the settling tank 1, the operator operates the flushing pump 91 to drive the sewage to flow from bottom to top along the cleaning pipe 9. Two flexible hoses 92 are connected to the upper end of the cleaning pipe 9, and the sewage enters the flexible hoses 92 along the cleaning pipe 9. The baffle plate 7 is hollow, and multiple flushing holes 72 are opened at the upper end of the baffle plate 7, which are directly opposite the flow holes 21. Under the action of the flushing pump 91, the sewage enters the baffle plate 7 along the flexible hoses 92 and is sprayed out towards the flow holes 21 along the flushing holes 72, thus flushing the filter screen 22 directly opposite the flow holes 21, which helps to reduce the probability of sediment clogging the filter screen 22.

[0050] Reference Figure 2 and Figure 3 The filter plate 2 is a rectangular plate, and a cleaning port 23 is provided at the end of the filter plate 2 away from the motor 41. A baffle 13 adapted to the cleaning port 23 is slidably connected to the settling tank 1. The baffle 13 is located directly below the filter plate 2 and fits against the filter plate 2. A cylinder 14 is installed on the outside of the settling tank 1. The output end of the cylinder 14 passes through the settling tank 1 and is slidably connected to the inner wall of the settling tank 1. The baffle 13 is fixedly connected to the output end of the cylinder 14. The operator manipulates the cylinder 14 to move the baffle 13, thereby controlling the opening or closing of the cleaning port 23. In the initial state, the baffle 13 is located directly opposite the cleaning port 23, thereby blocking the cleaning port 23.

[0051] Reference Figure 2 and Figure 3 When the filter screen 22 needs cleaning, the operator manipulates cylinder 14 to move baffle 13, causing baffle 13 to move from directly below the cleaning port 23 towards cylinder 14. A collection box 6 is located at the end of the settling tank 1 furthest from the motor 41. The collection box 6 is connected to an absorption pipe 61, which passes through the settling tank 1 and connects to the cleaning port 23. When the cleaning port 23 is open, some sewage and sediment between the sealing plate 3 and the filter plate 2 flow along the cleaning port 23 towards the absorption pipe 61. The absorption pipe 61 is equipped with a sludge pump 62, which transports the sludge or sewage in the absorption pipe 61 to the collection box 6.

[0052] Reference Figure 2 and Figure 6 A cleaning assembly 5 is provided between the sealing plate 3 and the filter plate 2. The cleaning assembly 5 includes a motor 51, two drive rollers 52, two moving belts 53, and multiple scrapers 54. The two drive rollers 52 are located at both ends of the filter plate 2 along its length, and both drive rollers 52 are rotatably connected to the filter plate 2. The moving belts 53 are wound between the two drive rollers 52. Under the support of the two drive rollers 52, the moving belts 53 are in a taut state. When either drive roller 52 rotates, it drives the moving belts 53 to rotate.

[0053] Reference Figure 2 and Figure 6 Two moving belts 53 are arranged in parallel and are located at both ends of the drive roller 52 along its length. All scrapers 54 are located between the two moving belts 53. For any scraper 54, both moving belts 53 are fixedly connected to it. When the moving belts 53 rotate, they drive the scrapers 54 to rotate. Multiple scrapers 54 are evenly distributed around the circumference of the moving belts 53. When a scraper 54 rotates to the side of the moving belt 53 that is close to the filter plate 2, the side of the scraper 54 away from the moving belt 53 comes into contact with the upper surface of the filter screen 22, thereby causing the sediment at the upper end of the filter screen 22 to move when the scraper 54 moves.

[0054] Reference Figure 3 and Figure 6 Motor 2 51 is installed on the outside of the settling tank 1, and the output shaft of motor 2 51 passes through the settling tank 1 and is coaxially fixed with any drive roller 52. The operator manipulates motor 2 51 to drive the corresponding drive roller 52 to rotate, which in turn drives the moving belt 53 to rotate. When the moving belt 53 rotates, it drives scraper 54 to push the settled material to move, so that the settled material moves along the filter plate 2 towards the cleaning port 23, thereby cleaning the filter screen 22. Scraper 54 and along the flushing hole 72 (reference) Figure 4 The flowing sewage helps to clean the filter screen 22. When cleaning the filter screen 22, the sealing plate 3 and the barrier plate 7 work together to separate the sediment from the remaining sewage, thereby reducing the probability of the sediment floating up again and mixing with the sewage. Cleaning the filter screen 22 helps to improve the sedimentation efficiency of the sedimentation tank 1 for sewage.

[0055] Reference Figure 2 and Figure 7A sieve cylinder 63 is rotatably connected inside the collection box 6. The sieve cylinder 63 is vertically arranged, and a support platform is fixedly installed at the lower end of the collection box 6. The lower end of the sieve cylinder 63 rotates with the support platform. A motor 64 is installed inside the support platform, and the output shaft of the motor 64 passes through the support platform and is fixedly connected to the sieve cylinder 63. The operator operates the motor 64 to drive the sieve cylinder 63 to rotate. A support ring 67 is fixedly installed at the upper end of the collection box 6. The support ring 67 is coaxially arranged with the sieve cylinder 63 and rotatably connected to the sieve cylinder 63. The support ring 67 cooperates with the support platform to position the sieve cylinder 63, which helps to improve the rotational stability of the sieve cylinder 63.

[0056] Reference Figure 2 and Figure 7 A filter cylinder 65 is installed inside the screen cylinder 63. The inner wall of the filter cylinder 65 is lined with filter cloth. The filter cylinder 65 is inserted into the screen cylinder 63 and fits snugly against the inner wall. The filter cylinder 65 has multiple evenly spaced positioning bolts 651, which thread through the filter cylinder 65 and connect to the screen cylinder 63. Under the connection of the positioning bolts 651 and the screen cylinder 63, the screen cylinder 63 rotates, causing the filter cylinder 65 to rotate synchronously. A support ring 67 passes through the end of the absorption pipe 61 away from the settling tank 1 and communicates with the inner side of the support ring 67. Settled matter and wastewater enter the filter cylinder 65 along the absorption pipe 61. The rotation of the filter cylinder 65 causes the settled matter and wastewater to rotate. Under centrifugal force, water in the wastewater and settled matter flows through the filter cloth into the cavity between the screen cylinder 63 and the collection tank 6. A drain pipe 69 is connected to the lower end of the collection tank 6, allowing operators to discharge and recover the water through the drain pipe 69.

[0057] Reference Figure 2 and Figure 7 After the sediment is drained, the filter cartridge 65 can be easily removed from the screen cylinder 63 by removing the positioning bolt 651, which improves the convenience of cleaning the sediment. A cylinder 68 is installed at the upper end of the collection box 6, and a cover plate 66 adapted to the support ring 67 is hinged to the collection box 6. When the cover plate 66 is in a horizontal state, the upper surface of the support ring 67 is in contact with the lower surface of the cover plate 66. At this time, the cover plate 66 seals the support ring 67 and the filter cartridge 65, which helps reduce the probability of sediment splashing out of the filter cartridge 65. A push block is fixed to the output end of the cylinder 68, and the push block is hinged to the cover plate 66. When the output end of the cylinder 68 is retracted, the push block drives the cover plate 66 to rotate away from the support ring 67, which improves the convenience of opening or closing the sealing plate 3.

[0058] The implementation principle of a sediment removal device for sewage treatment according to an embodiment of this application is as follows: Sewage is injected into the upper part of the filter plate 2 through the inlet pipe 11. The sewage head flows through the filter screen 22 and downwards into the sedimentation tank 1, at which time the sediment accumulates at the upper end of the filter screen 22. The motor 41 drives the sprocket 42 to rotate. Under the connection of the chain 44, the sprocket 42 drives all the sprockets 43 to rotate synchronously. When the sprockets 43 rotate, they drive the sealing plate 3 to rotate from a vertical state to a horizontal state. Finally, when the sealing plate 3 is in a horizontal state, it separates the sediment from the sewage. The motor 41 also drives the sprocket 82 to rotate, and through the chain 81, it drives the sprocket 83 to rotate. Under the connection of the gear set 84, the sprocket 83 drives the rotating rod 85 to rotate, and then through the connection of the gear set 86, it drives the barrier plate 7 to rotate. The barrier plate 7 moves closer to the lower end of the filter plate 2 and fits against the lower end surface of the filter plate 2. At this time, the barrier plate 7 and the sealing plate 3 cooperate to separate the sediment. The cylinder 14 moves the baffle 13, connecting the cleaning port 23 to the absorption pipe 61. The motor 41 drives the drive roller 52, which in turn drives the scraper 54 via the moving belt 53 to clean the filter screen 22. Under the action of the sludge pump 62, sediment and sludge enter the filter cylinder 65 along the absorption pipe 61. The motor 41 then drives the screen cylinder 63 to rotate, separating the sediment and some of the wastewater. When cleaning the sediment on the filter screen 22, the sealing plate 3 and the baffle plate 7 prevent the sediment from mixing with the wastewater again. Cleaning the sediment helps maintain the filtration efficiency of the filter screen 22, thereby improving the settling efficiency of the settling box 1.

[0059] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sludge cleaning device for sewage treatment, comprising a setting tank (1) provided with an inlet pipe (11) and an outlet pipe (12), characterized in that: The settling tank (1) is internally provided with: A filter plate (2) is fixedly connected in the filter tank and located between the water inlet pipe (11) and the water outlet pipe (12), a plurality of flow-through holes (21) are vertically opened in the filter plate (2), and a filter screen (22) is arranged on the upper end surface of the filter plate (2); A plurality of sealing plates (3) are all located on the upper end of the filter screen (22), when all the sealing plates (3) are in a vertical state, channels are formed between adjacent sealing plates (3) and between the sealing plates (3) and the settling tank (1), when all the sealing plates (3) are in a horizontal state, the channels between adjacent sealing plates (3) and between the sealing plates (3) and the settling tank (1) are closed, and the settling tank (1) is provided with a driving assembly (4) for driving all the sealing plates (3) to rotate; A cleaning assembly (5) is located between the sealing plate (3) and the filter screen (22) and is used for cleaning the deposits on the upper end surface of the filter screen (22), one end of the filter plate (2) is provided with a cleaning port (23) along the length direction, the settling tank (1) is provided with a baffle (13) corresponding to the cleaning port (23), and the settling tank (1) is provided with a cylinder (14) for driving the baffle (13) to move; A collection tank (6) is located at one end of the settling tank (1) close to the cleaning port (23), the collection tank (6) is fixedly connected with a suction pipe (61) in communication with the cleaning port (23), and the suction pipe (61) is fixedly connected with a sludge pump (62); Two sets of blocking plates (7) are located at the lower end of the filter plate (2), both the blocking plates (7) are rotatably connected with the settling tank (1), when both the blocking plates (7) are in a horizontal state, the upper end surface of the blocking plate (7) is attached to the lower end surface of the filter plate (2), and a connecting assembly (8) is arranged between the blocking plate (7) and the sealing plate (3), the driving assembly (4) drives the blocking plate (7) to rotate through the connecting assembly (8); The settling tank (1) is fixedly connected with a cleaning pipe (9), the upper end of the cleaning pipe (9) is communicated with two sets of hoses (92) corresponding to the blocking plate (7), the upper end of the blocking plate (7) is provided with a plurality of flushing holes (72) communicated with all the flow-through holes (21), one end of the hose (92) away from the cleaning pipe (9) penetrates the blocking plate (7) and is communicated with all the flushing holes (72), and the cleaning pipe (9) is installed with a flushing pump (91) for driving sewage to flow along the cleaning pipe (9) to the hose (92); The cleaning assembly (5) comprises a second motor (51), two driving rollers (52), two moving belts (53) and a plurality of scrapers (54), the two driving rollers (52) are respectively located at two ends of the settling tank (1) along the length direction, and the driving rollers (52) are rotatably connected with the settling tank (1), the second motor (51) is fixedly connected with the outside of the settling tank (1), and the output shaft of the second motor (51) penetrates the settling tank (1) and is coaxially fixed with any driving roller (52), the moving belts (53) are rotatably connected between the two driving rollers (52), and the two moving belts (53) are respectively located at two ends of the driving rollers (52) along the length direction, all the scrapers (54) are uniformly arranged along the circumference of the moving belts (53), the scrapers (54) are located between the two moving belts (53), and the scrapers (54) are fixedly connected with the two moving belts (53), and the scrapers (54) located at the lower ends of the moving belts (53) are attached to the upper end surface of the filter screen (22).

2. A device for cleaning sludge from sewage according to claim 1, characterized in that: The sealing plate (3) is fixedly connected with a rotating column (31) at one end along the length direction, the rotating column (31) penetrates the settling tank (1) and is rotatably connected with the settling tank (1), the driving assembly (4) comprises a first motor (41), a chain wheel one (42), a plurality of chain wheels two (43) and a chain one (44), the first motor (41) is fixedly connected with the settling tank (1), the chain wheel one (42) is coaxially fixed with the output shaft of the first motor (41), the chain wheels two (43) correspond to the rotating columns (31) one by one, the chain wheels two (43) are coaxially fixed with the corresponding rotating columns (31), and the chain one (44) is wound outside the chain wheel one (42) and all the chain wheels two (43).

3. A device for cleaning sludge from sewage according to claim 2, characterised in that: The rotating column (31) is located at one side of the sealing plate (3) along the width direction, the sealing plate (3) is fixedly connected with an upper plate (32) at the side away from the rotating column (31) along the length direction, the sealing plate (3) is fixedly connected with a lower plate (33) at the side close to the rotating column (31) along the length direction, the upper plates (32) correspond to the lower plates (33) one by one, and when the sealing plate (3) is in a horizontal state, the lower end surface of any upper plate (32) is attached to the upper end surface of the corresponding lower plate (33).

4. The device according to claim 1, wherein: The collecting tank (6) is rotatably connected with a sieve cylinder (63), one end of the suction pipe (61) away from the settling tank (1) extends into the sieve cylinder (63), a containing cavity is formed between the sieve cylinder (63) and the inner wall of the collecting tank (6), the collecting tank (6) is fixedly connected with a blowdown pipe (69) communicating with the containing cavity, a third motor (64) for driving the sieve cylinder (63) to rotate is fixedly connected to the lower end of the collecting tank (6), a filter cylinder (65) is laid on the inner wall of the sieve cylinder (63), the sieve cylinder (63) is provided with a plurality of positioning bolts (651), the positioning bolts (651) penetrate the filter cylinder (65) and are threadedly connected with the sieve cylinder (63), and the collecting tank (6) is provided with a cover plate (66) for closing the filter cylinder (65).

5. A device for cleaning sludge from sewage according to claim 4, characterised in that: The collecting box (6) is fixedly connected with a supporting ring (67), the supporting ring (67) is located at the upper end of the screen cylinder (63) and is rotationally connected with the screen cylinder (63), the cover plate (66) is located at the upper end of the supporting ring (67) and is hingedly connected with the collecting box (6), and the upper end of the collecting box (6) is provided with a second air cylinder (68) for driving the cover plate (66) to open and close.

6. The device according to claim 1, wherein: The connecting assembly (8) comprises chain two (81), sprocket three (82), sprocket four (83), gear set one (84), rotating rod (85) and two gear set two (86), the sprocket three (82) is coaxially fixed with the sprocket one (42), the sprocket four (83) is rotationally connected with the settling tank (1), the chain two (81) is engaged between the sprocket four (83) and the sprocket three (82), the two blocking plates (7) are fixedly connected with round rods (71), the round rods (71) pass through the settling tank (1) and are rotationally connected with the settling tank (1), the rotating rod (85) is rotationally connected with the settling tank (1), the two gear set two (86) correspond to the two round rods (71) respectively, the rotating rod (85) drives the round rod (71) to rotate through the gear set two (86), and the gear set one (84) is located between the sprocket four (83) and the rotating rod (85).

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