A sludge reduction treatment equipment for a sedimentation tank used in a sewage treatment plant

Abstract

The invention discloses a sludge reduction treatment device for a sedimentation tank used in a sewage treatment plant, belonging to the technical field of sludge treatment, comprising: a sedimentation tank main body, a fixed frame is arranged on the upper side of the sedimentation tank main body, and the fixed frame is slidably matched with the sedimentation tank main body; support rods, four support rods are arranged, and the four support rods are fixedly connected to the upper end of the fixed frame, so that the mixing efficiency of the sludge and the sludge reducer can be further improved by the opposite rotation directions of the first stirring rod and the second stirring rod, and the efficiency of sludge reduction can be improved, and the threaded sleeve is moved to the right on the surface of the first screw by reversing the first screw, and the rightward movement of the threaded sleeve drives the cleaning mechanism to move to the right through the fixed frame, so that the cleaning mechanism can clean and reduce the sludge in the sedimentation tank main body, and the cleaning mechanism can move left and right by controlling the forward and reverse rotation of the first servo motor, so as to improve the efficiency of cleaning and reducing the sludge in the sedimentation tank main body.

Description

Technical Field

[0001] The invention relates to the technical field of sludge treatment, and more specifically to a sludge reduction treatment device for a sedimentation tank used in a sewage treatment plant. Background Art

[0002] Sludge treatment is the process of reducing, stabilizing and harmless treatment of sludge. The higher the degree of sewage treatment, the more sludge residue will be produced and need to be treated. Unless land treatment or sewage ponds are used to treat sewage, general sewage treatment plants must have sludge treatment facilities. For modern sewage treatment plants, sludge treatment and disposal has become the most complex and expensive part of sewage treatment system operation.

[0003] A large amount of sludge is deposited in the sedimentation tank for settling sewage in a sewage treatment plant. The commonly used sludge reduction equipment has a poor cleaning effect on the sludge in the sedimentation tank, making the sewage treatment efficiency extremely low. In order to solve this problem, a sludge reduction treatment equipment for the sedimentation tank of a sewage treatment plant is proposed. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a sludge reduction treatment equipment for a sedimentation tank used in a sewage treatment plant, which can further improve the mixing efficiency of the sludge and the sludge reducer by the opposite rotation directions of the first stirring rod and the second stirring rod, thereby improving the efficiency of sludge reduction. The threaded sleeve is moved to the right on the surface of the first screw by reversing the first screw. The rightward movement of the threaded sleeve drives the cleaning mechanism to move to the right through the fixed frame, so that the cleaning mechanism can clean and reduce the sludge in the sedimentation tank body. The cleaning mechanism can move left and right by controlling the forward and reverse rotation of the first servo motor, thereby improving the efficiency of cleaning and reducing the sludge in the sedimentation tank body.

[0005] To solve the above problems, the present invention adopts the following technical solutions:

[0006] A sludge reduction treatment device for a sedimentation tank used in a sewage treatment plant, comprising:

[0007] A sedimentation tank body, wherein a fixing frame is arranged on the upper side of the sedimentation tank body, and the fixing frame is slidably matched with the sedimentation tank body;

[0008] Support rods, wherein the support rods are arranged in four numbers, the four support rods are all fixedly connected to the upper end of the fixing frame, the upper ends of the four support rods are fixedly connected to a second fixing plate, and the upper end of the second fixing plate is provided with a through hole;

[0009] A third fixing plate, the third fixing plate is arranged on the upper side of the sedimentation tank body, and a mounting groove is opened at the upper end of the third fixing plate;

[0010] A cleaning mechanism, the cleaning mechanism is arranged on the third fixed plate, and the cleaning mechanism is used to clean the inside of the sedimentation tank body;

[0011] A lifting mechanism, the lifting mechanism is arranged on the fixed frame, and the lifting mechanism is connected to the third fixed plate to realize a lifting cleaning mechanism; and

[0012] The moving mechanism is arranged outside the sedimentation tank body and is connected to the fixed frame to realize the movement of the fixed frame.

[0013] As a preferred solution of the present invention, the moving mechanism includes a first driving component and two groups of moving components, the first driving component and the two groups of moving components are both arranged on the outside of the sedimentation tank body, and the first driving component is connected to the two groups of moving components to realize the movement of the two groups of moving components.

[0014] As a preferred solution of the present invention, each group of the movable components includes a first fixed plate, a first screw and a threaded sleeve. The first fixed plates are provided in two numbers. The two first fixed plates are fixedly connected to the outer wall of the sedimentation tank body. The first screw is rotatably connected between the two first fixed plates, and the right end of the first screw movably passes through the first fixed plate located on the right side. The threaded sleeve is threadedly connected to the surface of the first screw, and the threaded sleeve is fixedly connected to the fixed frame.

[0015] As a preferred solution of the present invention, the first driving component includes a support frame, a first servo motor, a pulley and a transmission belt, the support frame is fixedly connected to the lower end of the first fixed plate located at the right front end, the first servo motor is fixedly connected in the support frame, and the output end of the first servo motor is fixedly connected to the first screw located at the front end, the pulley is provided with two, the two pulleys are respectively fixedly connected to the surfaces of the two first screws, the transmission belt is sleeved on the surfaces of the two pulleys, and the two pulleys are connected by the transmission belt.

[0016] As a preferred solution of the present invention, the lifting mechanism includes a second driving assembly and four groups of lifting assemblies, the four groups of lifting assemblies are all arranged on a fixed frame, and the second driving assembly is connected to the four groups of lifting assemblies to achieve lifting.

[0017] As a preferred solution of the present invention, each group of the lifting components includes a second screw, a limit plate and a threaded hole. The second screw is rotatably connected to the upper end of the fixed frame, the limit plate is fixedly connected to the surface of the second screw, and the threaded hole is opened on the surface of the third fixed plate. The second screw is threadedly matched with the threaded hole.

[0018] As a preferred solution of the present invention, the second driving assembly includes a sprocket, a chain and a second servo motor, the sprockets are provided in four, the four sprockets are fixedly connected to the surfaces of four second screw rods, the chain is sleeved on the surfaces of the four sprockets, and the four sprockets are connected by chain transmission, the second servo motor is fixedly connected to the upper end of the second fixed plate, the output end of the second servo motor movably passes through the second fixed plate, and the output end of the second servo motor is fixedly connected to the second screw rod located at the left front end.

[0019] As a preferred solution of the present invention, the cleaning mechanism includes a support plate, a drive motor, a first rotating rod, a first stirring rod and a driving gear, the support plate is fixedly connected in the mounting groove, the drive motor movably passes through the through hole, the drive motor is fixedly connected to the upper end of the support plate, and the output end of the drive motor movably passes through the support plate, the first rotating rod is fixedly connected to the output end of the drive motor, and the first rotating rod movably passes through the third fixed plate, the first stirring rod is set to multiple, and the multiple first stirring rods are fixedly connected to the surface of the first rotating rod.

[0020] As a preferred solution of the present invention, the cleaning mechanism also includes a second rotating rod, a second stirring rod and a driven gear. The second rotating rod and the driven gear are each provided in two numbers. The two driven gears are rotatably connected in the mounting groove. The two second rotating rods are respectively fixedly connected in the two driven gears, and the two second rotating rods movably penetrate the third fixed plate. The second stirring rod is provided in multiple numbers, and the multiple second stirring rods are respectively fixedly connected to the surfaces of the two second rotating rods.

[0021] As a preferred solution of the present invention, the front end of the sedimentation tank body is fixedly connected with a sewage pipe, and a valve is installed on the sewage pipe.

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] (1) When the device of the present invention is needed to be used, the sludge reducer is first placed in the sedimentation tank body, and the second servo motor is started to reverse. The reversal of the second servo motor drives the second screw to reverse. The reversal of the second screw causes the four second screws to reverse simultaneously through the cooperation of the sprocket and the chain. The reversal of the second screw drives the third fixed plate to move downward through the cooperation with the threaded hole. When the third fixed plate moves to contact with the limit plate, it is closed. Then the driving motor is started to rotate. The rotation of the driving motor drives the first rotating rod and the first stirring rod to rotate. The rotation of the first rotating rod and the first stirring rod makes the sludge and the sludge reducer fully mixed and prevents the sludge from being deposited for too long and scaling. The rotation of the driving motor also drives the driving gear to rotate. The rotation of the driving gear drives the driven gear to rotate. The rotation of the driven gear makes the first rotating rod and the first stirring rod to rotate. The second rotating rod and the second stirring rod rotate, and the mixing efficiency of the sludge and the sludge reducer is improved by the rotation of the second rotating rod and the second stirring rod, and the mixing efficiency of the sludge and the sludge reducer is further improved by the opposite rotation directions of the first stirring rod and the second stirring rod, thereby improving the sludge reduction efficiency. Finally, the first servo motor is started to reverse, and the reversal of the first servo motor drives the two first screws to reverse at the same time through the pulley and the transmission belt. The reversal of the first screw makes the threaded sleeve move to the right on the surface of the first screw, and the rightward movement of the threaded sleeve drives the cleaning mechanism to move to the right through the fixed frame, so that the cleaning mechanism can clean and reduce the sludge in the sedimentation tank main body, and the cleaning mechanism can move left and right by controlling the forward and reverse rotation of the first servo motor, thereby improving the efficiency of cleaning and reducing the sludge in the sedimentation tank main body.

[0024] (2) In the present invention, the threaded cooperation between the second screw rod and the threaded hole is for facilitating the movement of the third fixed plate, the limiting plate is for facilitating the limiting of the third fixed plate, thereby preventing the third fixed plate from contacting the chain, and the front end of the sedimentation tank body is fixedly connected with a sewage pipe for facilitating sewage discharge, and a valve is installed on the sewage pipe for facilitating the control of sewage discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall exploded view of a sludge reduction treatment device for a sedimentation tank used in a sewage treatment plant of the present invention;

[0026] Figure 2 It is a front perspective view of a sludge reduction treatment device for a sedimentation tank used in a sewage treatment plant according to the present invention;

[0027] Figure 3 It is a schematic diagram of a moving mechanism of a sludge reduction treatment device for a sedimentation tank used in a sewage treatment plant according to the present invention;

[0028] Figure 4 It is a combined diagram of a lifting mechanism and a cleaning mechanism of a sludge reduction treatment device for a sedimentation tank used in a sewage treatment plant of the present invention;

[0029] Figure 5 It is a schematic diagram of a lifting mechanism of a sludge reduction treatment device for a sedimentation tank used in a sewage treatment plant according to the present invention;

[0030] Figure 6 The present invention is a schematic diagram of a cleaning mechanism of a sludge reduction treatment device for a sedimentation tank used in a sewage treatment plant.

[0031] Description of the numbers in the figure:

[0032] 1. Sedimentation tank body; 2. First fixed plate; 3. First screw rod; 4. Threaded sleeve; 5. Fixed frame; 6. Support frame; 7. First servo motor; 8. Pulley; 9. Transmission belt; 10. Support rod; 11. Second fixed plate; 12. Through hole; 13. Second screw rod; 14. Sprocket; 15. Limit plate; 16. Chain; 17. Second servo motor; 18. Third fixed plate; 19. Mounting groove; 20. Support plate; 21. Threaded hole; 22. Drive motor; 23. First rotating rod; 24. First stirring rod; 25. Driving gear; 26. Second rotating rod; 27. Second stirring rod; 28. Driven gear; 29. ​​Drain pipe; 30. Valve. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Example:

[0037] See also Figure 1-6 , a sludge reduction treatment device for a sedimentation tank used in a sewage treatment plant, comprising:

[0038] The sedimentation tank body 1 has a fixing frame 5 disposed on the upper side thereof, and the fixing frame 5 is slidably matched with the sedimentation tank body 1 .

[0039] In this embodiment, the fixing frame 5 is for rotatably connecting with the second screw rod 13 .

[0040] The support rods 10 are arranged in four numbers, and the four support rods 10 are all fixedly connected to the upper end of the fixing frame 5 . The upper ends of the four support rods 10 are fixedly connected to a second fixing plate 11 , and a through hole 12 is opened at the upper end of the second fixing plate 11 .

[0041] In this embodiment, the support rod 10 is used to fix the second fixing plate 11 , the second fixing plate 11 is used to install the second servo motor 17 , and the through hole 12 is provided to accommodate the driving motor 22 .

[0042] The third fixing plate 18 is arranged on the upper side of the sedimentation tank body 1 , and a mounting groove 19 is formed at the upper end of the third fixing plate 18 .

[0043] In this embodiment, the third fixing plate 18 is used to facilitate the formation of the mounting groove 19 . The mounting groove 19 is used to facilitate the fixing of the support plate 20 and to accommodate the driving gear 25 and the driven gear 28 .

[0044] A cleaning mechanism is disposed on the third fixing plate 18 and is used to clean the sedimentation tank body 1;

[0045] A lifting mechanism, the lifting mechanism is arranged on the fixed frame 5, and the lifting mechanism is connected to the third fixed plate 18 to realize a lifting cleaning mechanism; and

[0046] The moving mechanism is arranged outside the sedimentation tank body 1 , and is connected to the fixed frame 5 to realize the movement of the fixed frame 5 .

[0047] Specifically, the moving mechanism includes a first driving assembly and two groups of moving assemblies. The first driving assembly and the two groups of moving assemblies are both arranged outside the sedimentation tank body 1. The first driving assembly is connected to the two moving assemblies to realize the movement of the two groups of moving assemblies.

[0048] In this embodiment, the moving mechanism includes a first drive component and two groups of moving components. The first drive component and the two groups of moving components are both arranged on the outside of the sedimentation tank body 1. The first drive component is connected to the two moving components to realize the movement of the two groups of moving components.

[0049] Specifically, each group of moving components includes a first fixed plate 2, a first screw 3 and a threaded sleeve 4. The first fixed plate 2 is provided in two numbers. The two first fixed plates 2 are fixedly connected to the outer wall of the sedimentation tank body 1. The first screw 3 is rotatably connected between the two first fixed plates 2, and the right end of the first screw 3 movably passes through the first fixed plate 2 located on the right side. The threaded sleeve 4 is threadedly connected to the surface of the first screw 3, and the threaded sleeve 4 is fixedly connected to the fixed frame 5.

[0050] In this embodiment, the first fixing plate 2 is rotatably connected to the first screw rod 3 , the first screw rod 3 is threadably connected to the threaded sleeve 4 , and the threaded sleeve 4 is used to drive the fixing frame 5 to move.

[0051] Specifically, the first driving assembly includes a support frame 6, a first servo motor 7, a pulley 8 and a transmission belt 9. The support frame 6 is fixedly connected to the lower end of the first fixed plate 2 located at the right front end, the first servo motor 7 is fixedly connected in the support frame 6, and the output end of the first servo motor 7 is fixedly connected to the first screw 3 located at the front end. The pulley 8 is provided in two, and the two pulleys 8 are respectively fixedly connected to the surfaces of the two first screws 3. The transmission belt 9 is sleeved on the surfaces of the two pulleys 8, and the two pulleys 8 are connected through the transmission belt 9.

[0052] In this embodiment, the support frame 6 is used to fix the first servo motor 7, the first servo motor 7 is used to drive the first screw rod 3 to rotate, and the pulley 8 and the transmission belt 9 cooperate with each other to facilitate the simultaneous rotation of the two first screw rods 3.

[0053] Specifically, the lifting mechanism includes a second driving assembly and four lifting assemblies. The four lifting assemblies are all arranged on the fixed frame 5. The second driving assembly is connected to the four lifting assemblies to achieve lifting.

[0054] In this embodiment, the lifting mechanism includes a second driving assembly and four lifting assemblies. The four lifting assemblies are all arranged on the fixed frame 5. The second driving assembly is connected to the four lifting assemblies to achieve lifting.

[0055] Specifically, each lifting assembly includes a second screw 13, a limit plate 15 and a threaded hole 21. The second screw 13 is rotatably connected to the upper end of the fixed frame 5, the limit plate 15 is fixedly connected to the surface of the second screw 13, and the threaded hole 21 is opened on the surface of the third fixed plate 18. The second screw 13 is threadedly matched with the threaded hole 21.

[0056] In this embodiment, the threaded cooperation between the second screw rod 13 and the threaded hole 21 is to facilitate the movement of the third fixing plate 18 , and the limiting plate 15 is to facilitate the limiting of the third fixing plate 18 to prevent the third fixing plate 18 from contacting the chain 16 .

[0057] Specifically, the second driving assembly includes a sprocket 14, a chain 16 and a second servo motor 17. The sprocket 14 is provided in four numbers. The four sprockets 14 are fixedly connected to the surfaces of the four second screw rods 13. The chain 16 is sleeved on the surfaces of the four sprockets 14, and the four sprockets 14 are connected by the chain 16. The second servo motor 17 is fixedly connected to the upper end of the second fixed plate 11. The output end of the second servo motor 17 movably passes through the second fixed plate 11, and the output end of the second servo motor 17 is fixedly connected to the second screw rod 13 located at the left front end.

[0058] In this embodiment, the sprocket 14 and the chain 16 cooperate with each other to facilitate the simultaneous rotation of the four second screw rods 13 , and the second servo motor 17 is used to drive the second screw rods 13 to rotate.

[0059] Specifically, the cleaning mechanism includes a support plate 20, a drive motor 22, a first rotating rod 23, a first stirring rod 24 and a driving gear 25. The support plate 20 is fixedly connected in the mounting groove 19, the drive motor 22 movably passes through the through hole 12, the drive motor 22 is fixedly connected to the upper end of the support plate 20, and the output end of the drive motor 22 movably passes through the support plate 20, the first rotating rod 23 is fixedly connected to the output end of the drive motor 22, and the first rotating rod 23 movably passes through the third fixed plate 18, and the first stirring rod 24 is provided in plurality, and the plurality of first stirring rods 24 are all fixedly connected to the surface of the first rotating rod 23.

[0060] In this embodiment, the support plate 20 is used to facilitate supporting the driving motor 22. The rotation of the driving motor 22 drives the first rotating rod 23 and the first stirring rod 24 to rotate. The rotation of the first rotating rod 23 and the first stirring rod 24 allows the sludge and the sludge reducer to be fully mixed, and prevents the sludge from being deposited for too long and scaling. The rotation of the driving motor 22 also drives the driving gear 25 to rotate.

[0061] Specifically, the cleaning mechanism also includes a second rotating rod 26, a second stirring rod 27 and a driven gear 28. The second rotating rod 26 and the driven gear 28 are both set in two, and the two driven gears 28 are both rotatably connected in the mounting groove 19. The two second rotating rods 26 are respectively fixedly connected in the two driven gears 28, and the two second rotating rods 26 movably penetrate the third fixed plate 18. The second stirring rod 27 is set in multiple numbers, and the multiple second stirring rods 27 are respectively fixedly connected to the surfaces of the two second rotating rods 26.

[0062] In this embodiment, the rotation of the driving gear 25 drives the driven gear 28 to rotate, and the rotation of the driven gear 28 causes the second rotating rod 26 and the second stirring rod 27 to rotate. The rotation of the second rotating rod 26 and the second stirring rod 27 improves the mixing efficiency of the sludge and the sludge reducer, and the opposite rotation directions of the first stirring rod 24 and the second stirring rod 27 further improve the mixing efficiency of the sludge and the sludge reducer.

[0063] Specifically, a sewage pipe 29 is fixedly connected to the front end of the sedimentation tank body 1 , and a valve 30 is installed on the sewage pipe 29 .

[0064] In this embodiment, a sewage pipe 29 is fixedly connected to the front end of the sedimentation tank body 1. The sewage pipe 29 is for facilitating sewage discharge. A valve 30 is installed on the sewage pipe 29. The valve 30 is for facilitating the control of sewage discharge.

[0065] Working principle: When the device needs to be used, first put the sludge reducer into the sedimentation tank body 1, start the second servo motor 17 to reverse, the reversal of the second servo motor 17 drives the second screw 13 to reverse, the reversal of the second screw 13 is achieved through the cooperation of the sprocket 14 and the chain 16, so that the four second screws 13 are reversed at the same time, the reversal of the second screw 13 drives the third fixed plate 18 to move downward through the cooperation with the threaded hole 21, and the third fixed plate 18 is closed when it moves to contact with the limit plate 15, and then the drive motor 22 is started to rotate, the rotation of the drive motor 22 drives the first rotating rod 23 and the first stirring rod 24 to rotate, the rotation of the first rotating rod 23 and the first stirring rod 24 makes the sludge and the sludge reducer fully mixed, and prevents the sludge from being deposited for too long and scaling, the rotation of the drive motor 22 also drives the driving gear 25 to rotate, the rotation of the driving gear 25 drives the driven gear 28 to rotate, The rotation of the driven gear 28 causes the second rotating rod 26 and the second stirring rod 27 to rotate, and the mixing efficiency of the sludge and the sludge reducer is improved by the rotation of the second rotating rod 26 and the second stirring rod 27, and the first stirring rod 24 and the second stirring rod 27 rotate in opposite directions, which further improves the mixing efficiency of the sludge and the sludge reducer, and improves the efficiency of sludge reduction. Finally, the first servo motor 7 is started to reverse, and the reversal of the first servo motor 7 drives the two first screws 3 to reverse at the same time through the pulley 8 and the transmission belt 9. The reversal of the first screw 3 causes the threaded sleeve 4 to move to the right on the surface of the first screw 3. The threaded sleeve 4 moves to the right and drives the cleaning mechanism to move to the right through the fixed frame 5, so that the cleaning mechanism can clean and reduce the sludge in the sedimentation tank main body 1. The cleaning mechanism can move left and right by controlling the forward and reverse rotation of the first servo motor 7, thereby improving the efficiency of cleaning and reducing the sludge in the sedimentation tank main body 1.

[0066] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and improved concepts of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A sludge reduction treatment equipment for a sedimentation tank used in a sewage treatment plant, characterized in that: include: A sedimentation tank body (1), wherein a fixing frame (5) is provided on the upper side of the sedimentation tank body (1), and the fixing frame (5) is slidably matched with the sedimentation tank body (1); Support rods (10), the support rods (10) being arranged in four numbers, the four support rods (10) being fixedly connected to the upper end of the fixing frame (5), the upper ends of the four support rods (10) being fixedly connected to a second fixing plate (11), the upper end of the second fixing plate (11) being provided with a through hole (12); A third fixing plate (18), the third fixing plate (18) being arranged on the upper side of the sedimentation tank body (1), and a mounting groove (19) being provided at the upper end of the third fixing plate (18); A cleaning mechanism, the cleaning mechanism being arranged on the third fixing plate (18), and the cleaning mechanism being used to clean the inside of the sedimentation tank body (1); A lifting mechanism, the lifting mechanism being arranged on the fixed frame (5), the lifting mechanism being connected to the third fixed plate (18) to realize a lifting and cleaning mechanism; as well as A moving mechanism, the moving mechanism being arranged outside the sedimentation tank body (1), the moving mechanism being connected to the fixed frame (5) to achieve movement of the fixed frame (5); The moving mechanism comprises a first driving assembly and two groups of moving assemblies, wherein the first driving assembly and the two groups of moving assemblies are both arranged outside the sedimentation tank body (1), and the first driving assembly is connected to the two groups of moving assemblies to realize the movement of the two groups of moving assemblies; Each group of the moving components comprises a first fixed plate (2), a first screw rod (3) and a threaded sleeve (4); the first fixed plates (2) are provided in two numbers, the two first fixed plates (2) are fixedly connected to the outer wall of the sedimentation tank body (1); the first screw rod (3) is rotatably connected between the two first fixed plates (2), and the right end of the first screw rod (3) movably penetrates the first fixed plate (2) located on the right side; the threaded sleeve (4) is threadedly connected to the surface of the first screw rod (3), and the threaded sleeve (4) is fixedly connected to the fixing frame (5); The first driving assembly comprises a support frame (6), a first servo motor (7), a pulley (8) and a transmission belt (9); the support frame (6) is fixedly connected to the lower end of a first fixed plate (2) located at the front end of the right side; the first servo motor (7) is fixedly connected inside the support frame (6); and the output end of the first servo motor (7) is fixedly connected to the first screw rod (3) located at the front end; the pulley (8) is provided in two pieces, and the two pulleys (8) are respectively fixedly connected to the surfaces of the two first screw rods (3); the transmission belt (9) is sleeved on the surfaces of the two pulleys (8), and the two pulleys (8) are connected to each other through the transmission belt (9); The lifting mechanism comprises a second driving assembly and four groups of lifting assemblies, the four groups of lifting assemblies are all arranged on a fixed frame (5), and the second driving assembly is connected to the four groups of lifting assemblies to achieve lifting; Each group of the lifting components comprises a second screw rod (13), a limiting plate (15) and a threaded hole (21); the second screw rod (13) is rotatably connected to the upper end of the fixing frame (5); the limiting plate (15) is fixedly connected to the surface of the second screw rod (13); the threaded hole (21) is formed on the surface of the third fixing plate (18); and the second screw rod (13) is threadably matched with the threaded hole (21); The second driving assembly comprises a sprocket (14), a chain (16) and a second servo motor (17); the sprocket (14) is arranged in four numbers; the four sprockets (14) are fixedly connected to the surfaces of four second screw rods (13); the chain (16) is sleeved on the surfaces of the four sprockets (14); and the four sprockets (14) are connected to each other by the chain (16); the second servo motor (17) is fixedly connected to the upper end of the second fixed plate (11); the output end of the second servo motor (17) movably passes through the second fixed plate (11); and the output end of the second servo motor (17) is fixedly connected to the second screw rod (13) located at the front end of the left side; The cleaning mechanism comprises a support plate (20), a drive motor (22), a first rotating rod (23), a first stirring rod (24) and a driving gear (25); the support plate (20) is fixedly connected to the mounting groove (19); the drive motor (22) movably passes through the through hole (12); the drive motor (22) is fixedly connected to the upper end of the support plate (20); and the output end of the drive motor (22) movably passes through the support plate (20); the first rotating rod (23) is fixedly connected to the output end of the drive motor (22); and the first rotating rod (23) movably passes through the third fixed plate (18); a plurality of the first stirring rods (24) are provided, and the plurality of the first stirring rods (24) are all fixedly connected to the surface of the first rotating rod (23); The cleaning mechanism further comprises a second rotating rod (26), a second stirring rod (27) and a driven gear (28); the second rotating rod (26) and the driven gear (28) are each provided in plurality; the two driven gears (28) are both rotatably connected to the mounting groove (19); the two second rotating rods (26) are respectively fixedly connected to the two driven gears (28); the two second rotating rods (26) movably penetrate the third fixed plate (18); the second stirring rods (27) are provided in plurality; the plurality of second stirring rods (27) are respectively fixedly connected to the surfaces of the two second rotating rods (26).

2. The sludge reduction treatment equipment for a sedimentation tank used in a sewage treatment plant according to claim 1, characterized in that: A sewage discharge pipe (29) is fixedly connected to the front end of the sedimentation tank body (1), and a valve (30) is installed on the sewage discharge pipe (29).

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