A deep denitrification device for aerated biological filter with energy saving and consumption reduction

Abstract

The present invention relates to the technical field of biological denitrification, and in particular to an energy-saving and consumption-reducing aerated biological filter deep denitrification device, comprising a treatment tank, both sides of the treatment tank are fixedly connected with water pipes, the two water pipes are arranged with the left side lower and the right side higher, an air pipe is movably connected to the left side of the treatment tank, a mixing mechanism is provided inside the treatment tank, the mixing mechanism is used to mix gas with sewage, the mixing mechanism comprises a motor, the right side of the treatment tank is fixedly connected to the left side of the motor, the output end of the motor is fixedly connected to a square rod, the outer side of the rod wall of the square rod is slidably connected to a moving tube, the motor drives the square rod to rotate, and the square rod drives the moving tube to rotate, and at the same time, through a reciprocating groove provided on the inner wall of the support tube, the moving tube can move left and right while rotating, so that the gas introduced into the treatment tank can be more dispersed, the mixing effect of the gas and liquid is improved, and the sewage treatment effect is thereby improved.

Description

Technical Field

[0001] The invention relates to the technical field of biological denitrification, and in particular to an energy-saving and consumption-reducing aerated biological filter deep denitrification device. Background Art

[0002] Excessive discharge of nitrogenous substances in wastewater can easily lead to eutrophication of natural water bodies, excessive algae growth, mass mortality of fish and other aquatic organisms, and the emergence of black and smelly rivers, among other serious water pollution problems. Nitrogenous wastewater, such as domestic sewage and landfill leachate, requires rigorous denitrification treatment before discharge into natural water bodies. Aerobic and anaerobic biofilters are a highly efficient and simple method for removing nitrogen from wastewater.

[0003] The Chinese utility model patent with authorization announcement number CN210764583U includes a filter box and a waste liquid box, wherein a first storage plate is fixedly installed on the outer surface of one side of the filter box near the lower end, and a second storage plate is fixedly installed on the outer surface of the other side of the filter box near the lower end, a fan is fixedly installed on the outer surface of the upper end of the first storage plate, and a first motor is fixedly connected to the outer surface of one side of the fan, and a second motor is fixedly installed on the outer surface of the upper end of the second storage plate, a liquid pipe is fixedly installed on the outer surface of one side of the waste liquid box, and a connecting plate is fixedly installed on the outer surface of the other side of the waste liquid box, a liquid collecting box is fixedly connected to the outer surface of the lower end of the waste liquid box, and a liquid distribution pipe is fixedly installed on the outer surface of the lower end of the liquid collecting box, so that the waste liquid inside the filter box is mixed with the gas more evenly during the aeration process, and the influence of water resistance on the rotation of the stirring rod can be minimized.

[0004] In the above case, the gas and liquid can be fully mixed by rotating the stirring rod, but the rotation position of the stirring rod is relatively fixed. When the gas moves, it is usually vertically upward under the action of buoyancy, which makes the contact between the liquid and the gas between two adjacent stirring rods poor. At the same time, the aeration is usually at the bottom of the sewage. In the process of sewage treatment, sediment will continue to be produced inside. In the later stage of the work, the internal sludge increases, causing the stirring rod to be easily affected by the sludge during stirring, affecting its rotation. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to propose an energy-saving and consumption-reducing aerated biological filter deep denitrification device to solve the problem that the rotation position of the stirring rod is relatively fixed, and the gas is usually vertically upward under the action of buoyancy when moving, which makes the contact between the liquid and the gas between two adjacent stirring rods poor. At the same time, it is usually at the lower end of the sewage during aeration. In the process of treating sewage, sediment will continue to be produced inside. In this way, in the later stage of work, the internal sludge increases, causing the stirring rod to be easily affected by the sludge during stirring, affecting its rotation.

[0006] Based on the above objectives, the present invention provides an energy-saving and consumption-reducing deep denitrification device for a biological aerated filter, comprising a treatment tank, water pipes fixedly connected to both sides of the treatment tank, the two water pipes being arranged with the left side lower and the right side higher; an air pipe movably connected to the left side of the treatment tank, and a mixing mechanism provided inside the treatment tank for mixing gas with sewage;

[0007] The mixing mechanism includes a motor, the right side of the treatment tank is fixedly connected to the left side of the motor, the output end of the motor is fixedly connected to a square rod, the outer side of the rod wall of the square rod is slidably connected to a moving tube, and the rotation of the square rod can drive the moving tube to rotate, the left side of the rod wall of the moving tube is slidably connected to the inner left side of the treatment tank, the left side of the treatment tank is fixedly connected to a support tube, the inner wall of the support tube is provided with a reciprocating groove, the left side of the tube wall of the moving tube is fixedly connected to a moving block, the outer side of the moving block is meshed with the inner wall of the reciprocating groove, the left side of the support tube is fixedly connected to the right side of the air pipe, the rod wall of the moving tube is evenly fixedly connected to a stirring tube, and the rod wall of the stirring tube is provided with an anti-fouling jet assembly.

[0008] Preferably, a sealing ring is fixedly connected to the left side of the interior of the treatment tank, and the inner wall of the sealing ring slides in contact with the movable tube.

[0009] Preferably, the anti-pollution jet assembly includes a blocking block, circular holes are opened on both sides of the tube wall of the stirring tube, the inner wall of the circular hole is fixedly connected to a support block, the internal sliding connection of the support block is connected to a limiting rod, the rod wall of the limiting rod is sleeved with a first spring, the side of the support block away from the center of the stirring tube is fixedly connected to the blocking block, and the blocking block fits with the outer side of the circular hole.

[0010] Preferably, a paddle is fixedly connected to a side of the stirring tube away from the moving tube, and leakage holes are evenly opened inside the paddle.

[0011] Preferably, the inner lower end of the treatment tank is rotatably connected to a reciprocating screw rod, and the right side of the rod wall of the reciprocating screw rod is rotatably connected to the output end of the motor through a belt. A movable groove is provided at the lower end of the treatment tank, and a discharge rod is slidably connected inside the movable groove. A rectangular opening is provided on the left side of the discharge rod, and a mud outlet matching the rectangular opening is provided on the inner wall of the left lower end of the treatment tank, so that the mud outlet can discharge sludge when it coincides with the rectangular opening, and the inner right side of the discharge rod is meshed and connected with the right side of the rod wall of the reciprocating screw rod.

[0012] Preferably, a horizontal block is fixedly connected to the left side of the treatment tank, a rod is slidably connected to the inside of the horizontal block, a second spring is sleeved on the upper end of the rod wall of the rod, and a top block is fixedly connected to the lower end of the rod, the lower end of the top block is arc-shaped, and the top block is used to push the sludge.

[0013] Preferably, the inner wall of the lower end of the treatment tank is arc-shaped so that the paddle can fit into the treatment tank when moving.

[0014] Preferably, a filter is provided at the upper end of the treatment pool, a dirt removal plate is attached to the lower end of the filter, both sides of the dirt removal plate are slidably connected to the inner upper end of the treatment pool, a third spring is evenly fixedly connected to the left side of the dirt removal plate, a triangular block is fixedly connected to the right side of the lower end of the dirt removal plate, a cam is fixedly connected to the output end of the motor, a limiting groove is provided on the right inner wall of the treatment pool, and a push rod is slidably connected to the inside of the limiting groove.

[0015] Beneficial effects of the present invention:

[0016] When working, the motor drives the square rod to rotate, and the square rod drives the moving tube to rotate. At the same time, through the reciprocating groove opened on the inner wall of the supporting tube, the moving tube can move left and right while rotating. This makes the gas entering the treatment pool more dispersed, improves the mixing effect of gas and liquid, and thus improves the effect of sewage treatment.

[0017] When gas is introduced, the air pressure pushes the blocking block to move and realizes jetting. When the work is finished, the blocking plate can be reset under the action of the first spring, which can effectively prevent the sludge from clogging the circular hole and ensure the continuous operation of the device.

[0018] When the stirring tube rotates, it drives the paddle to rotate. When the paddle rotates, it comes into contact with the sludge at the bottom of the treatment tank, which has a certain stirring effect on the sludge. This allows the gas, liquid and sludge to fully contact each other, and the microorganisms in the sludge can fully contact and react with the harmful substances in the sewage, thereby effectively improving the sewage treatment effect.

[0019] The reciprocating screw is rotated by the provided belt, and the rotation of the reciprocating screw causes the feeding rod to move left and right, and continuously transports a small amount of sludge to the outside of the treatment pool through the rectangular opening and the mud outlet. This avoids the increase of internal sediment during sewage treatment, which causes the stirring tube to encounter increased resistance when rotating, affecting the stirring effect.

[0020] By setting the top block, the sludge can be pushed to a certain extent each time the sludge is transported, so as to ensure that the sludge can be discharged normally during transportation.

[0021] The output end of the motor drives the cam to rotate, and the rotation of the cam causes the push rod to move up and down continuously. When the push rod moves up and down, it contacts the triangular block. The lateral force of the triangular block causes the dirt removal plate to move to the left, and under the action of the third spring, it can move to the right, so that the dirt removal plate can continuously move left and right, so that the lower end of the filter can be continuously cleaned to avoid blockage, thereby further improving the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0024] Figure 2 Schematic diagram of the cross-sectional structure of an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of a support tube according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of a stirring tube according to an embodiment of the present invention;

[0027] Figure 5 For the embodiment of the present invention Figure 4 The enlarged structural diagram at B in the middle;

[0028] Figure 6 For the embodiment of the present invention Figure 2 A in the middle is an enlarged structural diagram;

[0029] Figure 7 This is a schematic diagram of the top block structure according to an embodiment of the present invention;

[0030] Figure 8 This is a schematic structural diagram of a dirt removal plate according to an embodiment of the present invention.

[0031] The following are marked in the figure:

[0032] 1. Treatment tank; 2. Water pipe; 3. Support pipe; 4. Air pipe; 5. Cross block; 6. Ejector block; 7. Second spring; 8. Rod; 9. Filter; 10. Motor; 11. Third spring; 12. Stirring pipe; 13. Moving pipe; 14. Moving block; 15. Mud outlet; 16. First spring; 17. Rectangular opening; 18. Limiting groove; 19. Belt; 20. Decontamination plate; 21. Reciprocating screw; 22. Discharge rod; 23. Block; 24. Paddle; 25. Support block; 26. Limiting rod; 27. Reciprocating groove; 28. Sealing ring; 29. ​​Square rod; 30. Cam; 31. Ejector rod; 32. Triangular block. Implementation Method

[0033] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific embodiments.

[0034] It should be noted that, unless otherwise defined, the technical or scientific terms used in the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0035] like Figure 1-8 As shown, the present invention provides an energy-saving and consumption-reducing aerated biological filter deep denitrification device, comprising a treatment tank 1, which is a prior art treatment tank. Water pipes 2 are fixedly connected to both sides of the treatment tank 1. The two water pipes 2 are one for water inlet and one for water outlet. The two water pipes 2 are arranged with the left side lower and the right side higher. An air pipe 4 is movably connected to the left side of the treatment tank 1. The air pipe 4 is used for ventilation inside the treatment tank 1. A mixing mechanism is provided inside the treatment tank 1 for mixing gas with sewage.

[0036] The mixing mechanism includes a motor 10, which is a prior art. When the motor 10 is energized, the output end of the motor 10 can rotate. The right side of the treatment tank 1 is fixedly connected to the left side of the motor 10. The output end of the motor 10 is fixedly connected to a square rod 29. The outer side of the rod wall of the square rod 29 is slidably connected to a moving tube 13. The square rod 29 can slide left and right with the moving tube 13. At the same time, since the square rod 29 itself is a square setting, when the square rod 29 rotates, it can drive the moving tube 13 to rotate. A sealing ring 28 is fixedly connected to the left side of the interior of the treatment tank 1. The sealing ring 28 is provided to improve the sealing effect between the moving tube 13 and the treatment tank 1 to avoid leakage. The inner wall of the sealing ring 28 is in contact with the moving tube 13. The moving tube 13 fits and slides together, and the rotation of the square rod 29 can drive the moving tube 13 to rotate. The left side of the rod wall of the moving tube 13 is slidably connected to the left side of the interior of the treatment tank 1. The left side of the treatment tank 1 is fixedly connected to the support tube 3. The inner wall of the support tube 3 is provided with a reciprocating groove 27. The left side of the tube wall of the moving tube 13 is fixedly connected to the moving block 14. The outer side of the moving block 14 is meshed with the inner wall of the reciprocating groove 27. When the moving block 14 rotates, it can move left and right under the action of the reciprocating groove 27. The moving block 14 can drive the moving tube 13 to move left and right. The left side of the support tube 3 is fixedly connected to the right side of the air pipe 4. The rod wall of the moving tube 13 is evenly fixedly connected with the stirring tube 12, and the rod wall of the stirring tube 12 is provided with an anti-fouling jet assembly.

[0037] When the motor 10 is energized, the output end rotates, and the output end of the motor 10 drives the square rod 29 to rotate. Since the square rod 29 is square in shape, the square rod 29 drives the moving tube 13 to rotate when it rotates, and the moving tube 13 drives the moving block 14 to rotate. The moving block 14 is engaged with the reciprocating groove 27 provided on the inner wall of the support tube 3, so the moving block 14 reciprocates left and right while rotating, thereby driving the moving tube 13 to move left and right. The moving tube 13 drives the stirring tube 12 to move left and right while rotating. The gas is aerated through the stirring tube 12, thereby effectively improving the contact effect between the gas and the liquid, thereby improving the denitrification effect.

[0038] like Figure 3-5 As shown, the anti-fouling jet assembly includes a block 23, circular holes are opened on both sides of the tube wall of the stirring tube 12, and the inner wall of the circular hole is fixedly connected to a support block 25. The inner sliding connection of the support block 25 is a limit rod 26, which is used to limit the block 23. The rod wall of the limit rod 26 is provided with a first spring 16, which is used to reset the limit rod 26. The side of the support block 25 away from the center of the stirring tube 12 is fixedly connected to the block 23, and the block 23 fits the outer side of the circular hole.

[0039] Gas is introduced into the interior of the movable tube 13 through the air pipe 4. When the air pressure reaches a certain level, the air pressure pushes the block 23 to move outward. The block 23 moves outward under the action of the limit rod 26, and at the same time, the first spring 16 is deformed. At this time, gas is introduced into the interior of the treatment tank 1. When the work is stopped, the air outlet is stopped, and the air pressure drops rapidly. At this time, the thrust of the air pressure on the block 23 is reduced, and the limit rod 26 drives the block 23 to reset under the action of the first spring 16. This can prevent the liquid from flowing into the interior of the stirring tube 12 when the work is stopped. This can effectively prevent the circular hole from being blocked by the sediment produced by the treated sewage, affecting the next work, thereby improving the continuous working effect of the device.

[0040] like Figure 2 and Figure 3 As shown, a paddle plate 24 is fixedly connected to the side of the stirring tube 12 away from the moving tube 13, and leakage holes are evenly opened inside the paddle plate 24. The inner wall of the lower end of the treatment tank 1 is arranged in an arc shape, so that the paddle plate 24 can fit the treatment tank 1 when moving. When the stirring tube 12 rotates, it drives the paddle plate 24 to rotate. When the paddle plate 24 rotates, it contacts the sludge at the bottom of the treatment tank 1, and has a certain paddle effect on the sludge, so that the gas, liquid and sludge can fully contact each other, and the microorganisms in the sludge can fully contact and react with the harmful substances in the sewage, thereby effectively improving the sewage treatment effect.

[0041] like Figure 2 and Figure 6 As shown, the lower end of the interior of the processing tank 1 is rotatably connected to a reciprocating screw rod 21, and the right side of the rod wall of the reciprocating screw rod 21 is rotatably connected to the output end of the motor 10 through a belt 19. The belt 19 is used for transmission. In the prior art, a movable groove is provided at the lower end of the processing tank 1, and a discharge rod 22 is slidably connected inside the movable groove. A rectangular opening 17 is provided on the left side of the discharge rod 22, and a mud outlet 15 matching the rectangular opening 17 is provided on the inner wall of the lower left end of the processing tank 1, so that the mud outlet 15 can discharge sludge when it coincides with the rectangular opening 17. The cross-section of the rectangular opening 17 is small and can only hold a small amount of sludge at a time. The inner right side of the discharge rod 22 is meshed and connected with the right side of the rod wall of the reciprocating screw rod 21;

[0042] When the output end of the motor 10 rotates, the reciprocating screw 21 is driven to rotate through the belt 19. When the reciprocating screw 21 rotates, the meshing connected discharge rod 22 is continuously moved left and right. When the discharge rod 22 moves to the right, the rectangular opening 17 coincides with the mud outlet 15, so that part of the sludge enters the mud outlet 15. When the discharge rod 22 moves to the left, the mud outlet 15 is located outside the left side of the treatment tank 1. At this time, the sludge falls downward under the action of gravity, so that some sludge can be properly discharged outward, avoiding the generation of sediment during operation, resulting in more sludge inside the treatment tank 1, affecting the rotation effect of the moving pipe 13, ensuring the normal stirring work of the stirring pipe 12, and improving the device.

[0043] like Figure 7 As shown, a horizontal block 5 is fixedly connected to the left side of the treatment tank 1, and a rod 8 is slidably connected to the interior of the horizontal block 5. A second spring 7 is sleeved on the upper end of the rod wall of the rod 8, and a top block 6 is fixedly connected to the lower end of the rod 8. The lower end of the top block 6 is arc-shaped and is used to push the sludge.

[0044] When the discharge rod 22 moves to the left, the discharge rod 22 contacts the lower end of the top block 6, causing the top block 6 to move upward under the limiting action of the rod 8, and at the same time the second spring 7 is deformed. When the discharge rod 22 moves to a certain position, the lower end of the top block 6 is located at the lower end of the rectangular opening 17. At this time, the top block 6 moves downward under the action of the second spring 7, pushing the sludge inside the rectangular opening 17 to a certain extent, so that the sludge discharge effect is better, and avoiding the sludge from adhering to the inner wall of the rectangular opening 17, resulting in poor sludge discharge effect.

[0045] like Figure 8 As shown, the upper end of the treatment pool 1 is provided with a filter screen 9, which is stuck in the upper end of the treatment pool 1 and can be disassembled when needed. The filter screen 9 is provided to prevent floating objects from appearing on the upper end of the liquid from entering the interior of the water pipe 2 and causing blockage of the drainage of the water pipe 2. The lower end of the filter screen 9 is fitted with a decontamination plate 20, and both sides of the decontamination plate 20 are slidably connected to the upper end of the interior of the treatment pool 1. The left side of the decontamination plate 20 is evenly fixedly connected with a third spring 11, and the right side of the lower end of the decontamination plate 20 is fixedly connected with a triangular block 32. The output end of the motor 10 is fixedly connected with a cam 30. When the cam 30 rotates, it contacts the corresponding push rod 31. When the push rod 31 contacts the lower end, the push rod 31 can move up and down. A limiting groove 18 is provided on the right inner wall of the treatment pool 1. The limiting groove 18 is used to limit the movement of the push rod 31, and the inside of the limiting groove 18 is slidably connected with the push rod 31.

[0046] When the output end of the motor 10 rotates, the cam 30 is driven to rotate. The cam 30 contacts the lower end of the push rod 31, causing the push rod 31 to move up and down. When the push rod 31 moves up, it contacts the triangular block 32, causing the triangular block 32 to move to the left. When the triangular block 32 moves, it drives the decontamination plate 20 to move. When the decontamination plate 20 moves, the lower end of the filter screen 9 is cleaned to prevent suspended matter from affecting the filtering effect of the filter screen 9.

[0047] Working principle: When the motor 10 is energized, the output end rotates, and the output end of the motor 10 drives the square rod 29 to rotate. Since the square rod 29 is square in shape, when the square rod 29 rotates, it drives the moving tube 13 to rotate, and the moving tube 13 drives the moving block 14 to rotate. The moving block 14 is engaged with the reciprocating groove 27 provided on the inner wall of the support tube 3, so the moving block 14 reciprocates left and right while rotating, thereby driving the moving tube 13 to move left and right. The moving tube 13 drives the stirring tube 12 to move left and right while rotating. The gas is aerated through the stirring tube 12, thereby effectively improving the contact effect between the gas and the liquid, thereby improving the denitrification effect.

[0048] Furthermore, gas is introduced into the interior of the movable tube 13 through the air pipe 4. When the air pressure reaches a certain level, the air pressure pushes the blocking block 23 to move outward. The blocking block 23 moves outward under the action of the limiting rod 26, and at the same time, the first spring 16 is deformed. At this time, gas is introduced into the interior of the treatment tank 1. When the work is stopped, the air outlet is stopped, and the air pressure drops rapidly. At this time, the thrust of the air pressure on the blocking block 23 is reduced, and the limiting rod 26 drives the blocking block 23 to return to its original position under the action of the first spring 16. This can prevent the liquid from flowing into the interior of the stirring tube 12 when the work is stopped, and can effectively prevent the circular hole from being blocked by the sediment generated by the treated sewage, affecting the next work, thereby improving the continuous working effect of the device;

[0049] Furthermore, when the output end of the motor 10 rotates, the reciprocating screw 21 is driven to rotate through the belt 19. When the reciprocating screw 21 rotates, the meshing connected discharge rod 22 is continuously moved left and right. When the discharge rod 22 moves to the right, the rectangular opening 17 coincides with the mud outlet 15, so that part of the sludge enters the mud outlet 15. When the discharge rod 22 moves to the left, the mud outlet 15 is located outside the left side of the treatment tank 1. At this time, the sludge falls downward under the action of gravity, so that some sludge can be properly discharged outward, avoiding the generation of sediment during operation, resulting in an increase in sludge inside the treatment tank 1 and affecting the rotation effect of the moving pipe 13, thereby ensuring the normal stirring operation of the stirring pipe 12 and improving the device.

[0050] Furthermore, when the discharge rod 22 moves to the left, the discharge rod 22 contacts the lower end of the top block 6, causing the top block 6 to move upward under the limiting action of the rod 8. At the same time, the second spring 7 is deformed. When the discharge rod 22 moves to a certain position, the lower end of the top block 6 is located at the lower end of the rectangular opening 17. At this time, the top block 6 moves downward under the action of the second spring 7, pushing the sludge inside the rectangular opening 17 to a certain extent, thereby improving the sludge discharge effect and preventing the sludge from adhering to the inner wall of the rectangular opening 17, resulting in poor sludge discharge effect.

[0051] Furthermore, when the output end of the motor 10 rotates, the cam 30 is driven to rotate, and the cam 30 contacts the lower end of the push rod 31, causing the push rod 31 to move up and down. When the push rod 31 moves up, it contacts the triangular block 32, causing the triangular block 32 to move to the left. When the triangular block 32 moves, it drives the decontamination plate 20 to move. When the decontamination plate 20 moves, the lower end of the filter screen 9 is cleaned to prevent suspended matter from affecting the filtering effect of the filter screen 9.

[0052] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0053] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An energy-saving and consumption-reducing deep denitrification device for aerated biological filter, comprising a treatment tank (1), characterized in that: Both sides of the treatment pool (1) are fixedly connected to water pipes (2), the two water pipes (2) being arranged with the left side lower and the right side higher; the left side of the treatment pool (1) is movably connected to an air pipe (4); a mixing mechanism is provided inside the treatment pool (1), the mixing mechanism being used to mix gas with sewage; The mixing mechanism comprises a motor (10), the right side of the treatment tank (1) is fixedly connected to the left side of the motor (10), the output end of the motor (10) is fixedly connected to a square rod (29), the outer side of the rod wall of the square rod (29) is slidably connected to a moving tube (13), and the rotation of the square rod (29) can drive the moving tube (13) to rotate, the left side of the rod wall of the moving tube (13) is slidably connected to the inner left side of the treatment tank (1), the left side of the treatment tank (1) is fixedly connected to a support tube (3), the inner wall of the support tube (3) is provided with a reciprocating groove (27), the left side of the tube wall of the moving tube (13) is fixedly connected to a moving block (14), the outer side of the moving block (14) is meshed with the inner wall of the reciprocating groove (27), the left side of the support tube (3) is fixedly connected to the right side of the air pipe (4), the rod wall of the moving tube (13) is evenly fixedly connected to a stirring tube (12), and the rod wall of the stirring tube (12) is provided with an anti-fouling jet assembly; A shift plate (24) is fixedly connected to the side of the stirring tube (12) away from the moving tube (13), and leak holes are evenly opened inside the shift plate (24); The lower end of the interior of the treatment tank (1) is rotatably connected to a reciprocating screw rod (21), the right side of the rod wall of the reciprocating screw rod (21) is rotatably connected to the output end of the motor (10) via a belt (19), a movable groove is provided at the lower end of the treatment tank (1), a discharge rod (22) is slidably connected inside the movable groove, a rectangular opening (17) is provided on the left side of the discharge rod (22), a mud outlet (15) matching the rectangular opening (17) is provided on the inner wall of the lower left end of the treatment tank (1), so that the mud outlet (15) can discharge mud when it overlaps with the rectangular opening (17), and the right side of the interior of the discharge rod (22) is meshedly connected to the right side of the rod wall of the reciprocating screw rod (21); The inner wall of the lower end of the treatment pool (1) is arranged in an arc shape, so that the shift plate (24) can fit with the treatment pool (1) when moving.

2. The energy-saving and consumption-reducing deep denitrification device of aerated biological filter according to claim 1, characterized in that: A sealing ring (28) is fixedly connected to the left side of the interior of the treatment pool (1), and the inner wall of the sealing ring (28) is in contact with and slides on the movable tube (13).

3. The energy-saving and consumption-reducing deep denitrification device of aerated biological filter according to claim 1, characterized in that: The anti-fouling jet assembly comprises a blocking block (23), circular holes are formed on both sides of the wall of the stirring tube (12), a support block (25) is fixedly connected to the inner wall of the circular hole, a limiting rod (26) is slidably connected inside the support block (25), a first spring (16) is sleeved on the rod wall of the limiting rod (26), a side of the support block (25) away from the center of the stirring tube (12) is fixedly connected to the blocking block (23), and the blocking block (23) is in contact with the outer side of the circular hole.

4. The energy-saving and consumption-reducing deep denitrification device of aerated biological filter according to claim 1, characterized in that: The left side of the treatment tank (1) is fixedly connected to a transverse block (5), the interior of the transverse block (5) is slidably connected to a rod (8), the upper end of the rod wall of the rod (8) is sleeved with a second spring (7), the lower end of the rod (8) is fixedly connected to a top block (6), the lower end of the top block (6) is arranged in an arc shape, and the top block (6) is used to push the sludge.

5. The energy-saving and consumption-reducing deep denitrification device of aerated biological filter according to claim 1, characterized in that: The upper end of the treatment tank (1) is provided with a filter screen (9), the lower end of the filter screen (9) is fitted with a decontamination plate (20), both sides of the decontamination plate (20) are slidably connected to the inner upper end of the treatment tank (1), the left side of the decontamination plate (20) is evenly fixedly connected to a third spring (11), the right side of the lower end of the decontamination plate (20) is fixedly connected to a triangular block (32), the output end of the motor (10) is fixedly connected to a cam (30), and a limiting groove (18) is provided on the right inner wall of the treatment tank (1), and a push rod (31) is slidably connected inside the limiting groove (18).

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