A flocculation sludge treatment mechanism for a sewage treatment pool

Abstract

The present invention discloses a flocculation sludge treatment mechanism for a sewage treatment tank, comprising a flocculation sedimentation tank, an L-shaped discharge pipe, and an inclined plate pipe, wherein the L-shaped discharge pipe is installed above the rear end of the two side surfaces of the flocculation sedimentation tank, and the inclined plate pipe is installed inside the flocculation sedimentation tank. The mechanism also comprises a sludge scraping mechanism, a conical sedimentation tank, and a sludge treatment chamber. The present invention utilizes a sludge scraping plate to scrape and collect the sludge and deposit it in the conical sedimentation tank, and utilizes water pressure to discharge the sludge into an inner box body for filtration through a square box-shaped filter cloth, thereby removing a large amount of water carried in the sludge, and then pumping the sludge to other mechanisms for treatment, which can effectively reduce the waste of sedimentation water and ensure the treatment efficiency of the flocculation sedimentation tank. The sludge discharge in the conical sedimentation tank is controlled by utilizing the pressing of the sludge discharge column on the circular sealing plug and the elasticity of the compression spring, so that the sludge is discharged first, thereby maximizing the reduction of sedimentation water discharge and ensuring the sedimentation efficiency of the flocculation sedimentation tank for sewage.

Description

Technical Field

[0001] The present invention relates to the field of sewage treatment related equipment, in particular to a flocculation sludge treatment mechanism for a sewage treatment pool. Background Art

[0002] Flocculation is the process by which particles in water flocculate and settle. After a coagulant is added to the water, the suspended colloids and dispersed particles form flocs due to molecular forces. During the settling process, these particles collide and aggregate, increasing in size and mass, and their settling rate. Flocculation can be seen in surface water after the addition of a coagulant, in organic suspended matter in domestic sewage, and in activated sludge during sedimentation.

[0003] In the flocculation sedimentation tank, after flocculation and sedimentation, the flocs pass through the inclined tube sedimentation tank, where the flocs accumulate into activated sludge and accumulate at the bottom of the inclined tube sedimentation tank. In the traditional inclined tube sedimentation tank, the sludge is pumped away by a sludge pump, so that the flocs can continue to precipitate and separate from the water. However, during the sludge extraction process, this method will pump out the water in the sedimentation tank along with the sludge, which will result in a large amount of waste when the inclined tube sedimentation tank is settling water, affecting the working efficiency of the inclined tube sedimentation tank. Summary of the Invention

[0004] The purpose of the present invention is to solve the above-mentioned problem that a large amount of flocculation water is carried in the pumping process of the traditional flocculation sedimentation tank, which affects the flocculation sedimentation efficiency. A flocculation sludge treatment mechanism for a sewage treatment tank is designed.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A flocculation sludge treatment mechanism for a sewage treatment tank, comprising a flocculation sedimentation tank, an L-shaped discharge pipe, and an inclined plate pipe, wherein the L-shaped discharge pipe is installed above the rear end of both sides of the flocculation sedimentation tank, and the inclined plate pipe is installed inside the flocculation sedimentation tank, and further comprising a sludge scraping mechanism, a conical sedimentation tank, and a sludge treatment chamber;

[0007] The conical sedimentation tank is opened at the rear end of the lower surface of the flocculation sedimentation tank;

[0008] The sludge treatment chamber is located at the rear of the flocculation sedimentation tank, and the sludge treatment chamber is connected to the conical sedimentation tank through a U-shaped connecting pipe. One end of the U-shaped connecting pipe is inserted into the sludge treatment chamber and extends upward for a certain length. A sludge pump is provided inside the sludge treatment chamber, and the sludge pump is higher than the port of the U-shaped connecting pipe. A sludge discharge pipe is installed on the sludge pump, and the sludge discharge pipe is fixedly connected to the sludge treatment chamber. A square ring frame is provided inside the sludge treatment chamber, and hanging frames are installed at both ends above the square ring frame. An outer box body is installed on the outer side of the lower surface of the square ring frame. An inner box is installed on the inner side of the surface, and the outer box is sleeved on the inner box. A square box-shaped filter cloth is provided between the outer box and the inner box. A number of water filter holes are opened on the surfaces of the outer box and the inner box, and the water filter holes are evenly distributed on the outer box and the inner box. A mud discharge shield is provided above the center of the inner box, and a mud discharge column is installed on the lower surface of the mud discharge shield. An adjusting sleeve is slidably sleeved on one end of the U-shaped connecting pipe, and the adjusting sleeve is fixedly connected to the outer box and the inner box. An annular retaining ring is installed on the upper end of the adjusting sleeve, and a connecting rod is installed between the annular retaining ring and the mud discharge shield.

[0009] Furthermore, an inner conical seat is installed at the upper end of one end of the U-shaped connecting tube, a fixed baffle is provided inside the U-shaped connecting tube, the fixed baffle and the U-shaped connecting tube are connected by a support rod, an adjusting column is installed on the fixed baffle, a circular sealing plug is provided under the inner conical seat of the ring, the upper end of the outer surface of the circular sealing plug is conical, the upper surface of the circular sealing plug is movably in contact with the mud discharge column, and is socketed in the inner conical seat of the ring, a sealing plug handle is provided at the lower end of the circular sealing plug, a socket slot is opened in the sealing plug handle and the circular sealing plug, the adjusting column is movably inserted in the socket slot, a compression spring is installed at the upper end of the inner part of the socket slot, and the compression spring is fixedly connected to the adjusting column.

[0010] Furthermore, the scraper mechanism includes a scraper box and a rear rotating shaft. The scraper box is located at the front end below the flocculation sedimentation tank. A front rotating shaft is provided inside the scraper box. The front rotating shaft and the scraper box are connected by a bearing. Scraper sprockets are installed at both ends of the front rotating shaft. The scraper sprockets are located on both sides of the scraper box. The rear rotating shaft is located at the rear end below the flocculation sedimentation tank. The rear rotating shaft is located above the conical sedimentation tank. Scraper sprockets identical to those at both ends of the front rotating shaft are installed at both ends of the rear rotating shaft. The scraper sprocket is connected to the rear rotating shaft by a bearing. A scraper chain is installed between the scraper sprockets. A number of scraper plates are installed on the scraper chain. The scraper plates are evenly distributed. The lower ends of the scraper plates are in sliding contact with the lower surface of the flocculation sedimentation tank, and the upper ends of the scraper plates are in sliding contact with the outer surface of the scraper box.

[0011] Furthermore, one end of the front rotating shaft and the rear rotating shaft are respectively connected to the flocculation sedimentation tank through bearings, and the other end of the front rotating shaft and the rear rotating shaft are connected to the flocculation sedimentation tank through mechanical seals, and the other end of the front rotating shaft and the rear rotating shaft extend out of the flocculation sedimentation tank, and the other end of the front rotating shaft and the rear rotating shaft are respectively connected to an external driving mechanism.

[0012] Furthermore, a filter cloth drum is movably installed inside the scraper box, and the rotating shaft of the filter cloth drum and the rear rotating shaft are driven by gears and chains. The filter cloth drum is rolled up with a mud-pressing filter cloth, and a support drum is installed at the lower end of the filter cloth drum. The support drum is in sliding contact with the mud-pressing filter cloth, and the mud-pressing filter cloth extends out of the scraper box.

[0013] Furthermore, rope drums are installed on both sides of the center of the rear rotating shaft, and connecting ropes are installed on the rope drums. The connecting ropes are fixedly connected to one end of the mud pressing filter cloth.

[0014] Furthermore, the sludge pump is located inside the inner box.

[0015] Furthermore, wire rope drums are installed at both ends above the sludge treatment chamber, and the two wire rope drums rotate synchronously through a rotating shaft. Wire ropes are installed on the wire rope drums, and the wire ropes are fixedly connected to the hanging frame. A driving mechanism is installed on one side above the sludge treatment chamber, and the driving mechanism is connected to the wire rope drum.

[0016] Furthermore, a return pipe is installed on one side of the lower surface of the sludge treatment chamber, the return pipe is fixedly connected to the front surface of the flocculation sedimentation tank, and a diaphragm pump is installed on the return pipe.

[0017] Beneficial effects

[0018] A flocculation sludge treatment mechanism for a sewage treatment pool manufactured using the technical solution of the present invention has the following beneficial effects:

[0019] This treatment mechanism uses a scraper to scrape and collect the sludge and deposit it in a conical sedimentation tank, and uses water pressure to discharge the sludge into the inner box to filter through the square box filter cloth, thereby removing a large amount of water carried in the sludge. The sludge is then pumped to other mechanisms for treatment, which can effectively reduce the waste of sedimentation water and ensure the treatment efficiency of the flocculation sedimentation tank.

[0020] This treatment mechanism utilizes the pressing of the mud discharge column on the circular sealing plug in conjunction with the elasticity of the compression spring, so that the staff can use the lifting and lowering of the outer box and the inner box to control the sludge discharge in the conical sedimentation tank, effectively facilitating the staff's operation and control. At the same time, it utilizes the sedimentation of the sludge to give priority to the discharge of the sludge, thereby maximizing the reduction of the discharge of the sedimentation water and ensuring the sedimentation efficiency of the flocculation sedimentation tank for sewage.

[0021] This treatment device uses a scraper to scrape the sludge at a regular interval to ensure the cleanliness of sludge discharge, and the contact between the scraper and the outer surface of the scraper box can clean the scraper box to ensure the cleanliness of the sludge scraping. At the same time, the setting of the mud pressing filter cloth can press the sludge to avoid the scraper causing the sludge to be lifted up during the scraping process, making the scraping efficiency more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a flocculation sludge treatment mechanism of a sewage treatment pool according to the present invention;

[0023] Figure 2 is a schematic diagram of the sludge treatment chamber of the present invention;

[0024] Figure 3 is a schematic diagram of the inner box of the present invention;

[0025] Figure 4 This is a schematic diagram of the U-shaped connecting pipe of the present invention after it is opened;

[0026] Figure 5 is a side view of the scraper box of the present invention;

[0027] Figure 6 is a schematic diagram of the mud scraper sprocket of the present invention;

[0028] Figure 7 is a schematic diagram of the rear rotating shaft of the present invention;

[0029] In the figure, 1. Flocculation sedimentation tank; 2. L-shaped discharge pipe; 3. Inclined plate pipe; 4. Conical sedimentation tank; 5. Sludge treatment chamber; 6. U-shaped connecting pipe; 7. Sludge pump; 8. Sludge discharge pipe; 9. Square ring frame; 10. Hanging frame; 11. Outer box; 12. Inner box; 13. Square box filter cloth; 14. Water filter hole; 15. Mud discharge shield; 16. Mud discharge column; 17. Adjusting sleeve; 18. Annular retaining ring; 19. Connecting rod; 20. Conical seat inside the ring; 21. Fixed baffle. 22. Adjusting column; 23. Round sealing plug; 24. Sealing plug handle; 25. Socket slot; 26. Compression spring; 27. Scraper box; 28. Rear rotating shaft; 29. ​​Front rotating shaft; 30. Scraper sprocket; 31. Scraper chain; 32. Scraper plate; 33. Filter cloth drum; 34. Squeeze filter cloth; 35. Support drum; 36. Rope drum; 37. Connecting rope; 38. Wire rope drum; 39. Wire rope; 40. Driving mechanism; 41. Return pipe; 42. Diaphragm pump. DETAILED DESCRIPTION

[0030] The present invention will be described in detail below with reference to the accompanying drawings. Figure 1-7 shown.

[0031] The innovation of this solution is that the conical sedimentation tank is opened at the rear end of the lower surface of the flocculation sedimentation tank; the sludge treatment chamber is located at the rear of the flocculation sedimentation tank, and the sludge treatment chamber and the conical sedimentation tank are connected by a U-shaped connecting pipe 6. One end of the U-shaped connecting pipe is inserted into the sludge treatment chamber and extends upward for a certain length. A sludge pump 7 is provided inside the sludge treatment chamber. The sludge pump is higher than the port of the U-shaped connecting pipe. A sludge discharge pipe 8 is installed on the sludge pump. The sludge discharge pipe is fixedly connected to the sludge treatment chamber. A square ring frame 9 is provided inside the sludge treatment chamber. Two holes are formed above the square ring frame. A hanging frame 10 is installed at the end, an outer box 11 is installed on the outer side of the lower surface of the square ring frame, and an inner box 12 is installed on the inner side of the lower surface of the square ring frame. The outer box is sleeved on the inner box, and a square box-shaped filter cloth 13 is provided between the outer box and the inner box. A plurality of water filter holes 14 are opened on the surface of the outer box and the inner box. The water filter holes are evenly distributed on the outer box and the inner box. A mud discharge shield 15 is provided above the center of the inner box, and a mud discharge column 16 is installed on the lower surface of the mud discharge shield. One end of the U-shaped connecting pipe is slidingly sleeved with an adjusting sleeve 17, which is adjusted with the outer box. It is fixedly connected to the inner box body, an annular retaining ring 18 is installed on the upper end of the adjusting sleeve, and a connecting rod 19 is installed between the annular retaining ring and the mud discharge shield; through the setting of the conical sedimentation tank 4, the sludge can be concentrated and precipitated, and then the water pressure is used to make the sludge discharged first, and the flocculation water in the flocculation sedimentation tank 1 is minimized from leaking out, so that the flocculation sedimentation tank 1 can maintain the highest efficiency operation, and through the setting of the outer box body 11, the inner box body 12 and the square box filter cloth 13, when the sludge is stored in the inner box body 12, the water in the sludge can be removed through the water filter hole 14. Flocculated water can minimize the discharge of flocculated water while the sludge can be pumped, so as to reduce the waste of flocculated water and ensure the working efficiency of the flocculation sedimentation tank 1. The sludge pump 7 can be used to pump the sludge after filtering to facilitate the subsequent treatment of the sludge. The mud discharge shield 15 can shield the sludge to avoid it from being sprayed outside the inner box 2. The mud discharge column 16 can control the opening and closing of the U-shaped connecting pipe 6, and control the discharge and sedimentation accumulation of the sludge, which is convenient for control.

[0032] The innovation of this solution is that the inner upper end of one end of the U-shaped connecting pipe is installed with an inner ring cone seat 20, a fixed baffle 21 is provided inside the U-shaped connecting pipe, the fixed baffle and the U-shaped connecting pipe are connected by a support rod, an adjusting column 22 is installed on the fixed baffle, a circular sealing plug 23 is provided under the inner ring cone seat, the upper end of the outer surface of the circular sealing plug is conical, the upper surface of the circular sealing plug is in active contact with the mud discharge column, and is socketed in the inner ring cone seat, and a sealing plug handle 24 is provided at the lower end of the circular sealing plug, and a socket is provided in the sealing plug handle and the circular sealing plug. Groove 25, the adjusting column is movably inserted in the socket, and a compression spring 26 is installed at the upper end of the socket, and the compression spring is fixedly connected to the adjusting column; through the arrangement of the inner-ring conical seat 20 and the circular sealing plug 23, the elasticity of the compression spring 26 can be utilized, and the water pressure is used to push the pressure of the sludge on the circular sealing plug 23, so that the seal between the circular sealing plug 23 and the inner-ring conical seat 20 is more rigorous, and the smooth surface of the circular sealing plug 23 and the sealing plug handle 24 can maximize the reduction of resistance during sludge discharge, making sludge discharge smoother.

[0033] The innovation of this solution is that the scraping mechanism includes a scraping box 27 and a rear shaft 28. The scraping box is located at the front end below the flocculation sedimentation tank. A front shaft 29 is provided inside the scraping box. The front shaft and the scraping box are connected by a bearing. Scraping sprockets 30 are installed at both ends of the front shaft. The scraping sprockets are located on both sides of the scraping box. The rear shaft is located at the rear end below the flocculation sedimentation tank. The rear shaft is located above the conical sedimentation tank. The same scraping sprockets as those at both ends of the front shaft are installed at both ends of the rear shaft. The scraping sprocket is connected to the rear shaft through a bearing. A scraper chain 31 is provided in the sleeve, and a plurality of scraper blades 32 are installed on the scraper chain. The scraper blades are evenly distributed, and the lower ends of the scraper blades are in sliding contact with the lower surface of the flocculation sedimentation tank, and the upper ends of the scraper blades are in sliding contact with the outer surface of the scraper box. One end of the front shaft and the rear shaft are respectively connected to the flocculation sedimentation tank through a bearing, and the other end of the front shaft and the rear shaft are connected to the flocculation sedimentation tank through a mechanical seal, and the other end of the front shaft and the rear shaft extend out of the flocculation sedimentation tank, and the other end of the front shaft and the rear shaft are respectively connected to the external drive mechanism. A filter cloth drum 33 is movably installed inside the scraper box. The rotating shaft of the filter cloth drum and the rear rotating shaft are driven by gears and chains. A mud pressing filter cloth 34 is rolled up on the filter cloth drum. A support drum 35 is installed at the lower end of the filter cloth drum. The support drum is in sliding contact with the mud pressing filter cloth. The mud pressing filter cloth extends out of the scraper box. Rope drums 36 are installed on both sides of the center of the rear rotating shaft. A connecting rope 37 is installed on the rope drum. The connecting rope is fixedly connected to one end of the mud pressing filter cloth. By setting the scraper blade 32, the sludge can be scraped, and through the scraper box 2 The setting of 7 can facilitate the collection and release of the mud pressing filter cloth 34. At the same time, the contact between the scraper plate 32 and the outer wall of the scraper box 27 can scrape the sludge falling from the outer surface of the scraper box 27 to ensure the cleanliness of the sludge scraping. The setting of the mud pressing filter cloth 34 can enable the device to press the sludge before scraping the sludge to avoid the problem of low sludge scraping efficiency caused by splashing of sludge during the scraping process, so that the sludge can be quickly scraped into the conical sedimentation tank 4 to ensure that the sludge scraping is more efficient.

[0034] In this device, wire rope drums 38 are installed at both ends above the sludge treatment chamber. The two wire rope drums rotate synchronously through the rotating shaft. Wire ropes 39 are installed on the wire rope drums. The wire ropes are fixedly connected to the hanging frame. A driving mechanism 40 is installed on one side above the sludge treatment chamber, and the driving mechanism is connected to the wire rope drum. By driving the wire rope 39 to be wound up by the driving mechanism 40, the lifting and lowering of the outer box body 11 and the inner box body 12 can be controlled, thereby controlling the discharge of sludge and the filtration pumping.

[0035] In this device, a return pipe 41 is installed on one side of the lower surface of the sludge treatment chamber. The return pipe is fixedly connected to the front surface of the flocculation sedimentation tank, and a diaphragm pump 42 is installed on the return pipe.

[0036] During the implementation of this technical solution, personnel in this field need to connect all electrical components in this case to an external power supply mechanism, and should select a suitable controller according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between each electrical component is completed in the order of working. The detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0037] In the embodiment, when sewage is mixed with flocculants and discharged into the flocculation sedimentation tank 1 for sedimentation, the flocculants in the sewage are precipitated to the bottom of the flocculation sedimentation tank 1 through the inclined plate tube 3 and form sludge, while the upper clear water is discharged to the outside of the flocculation sedimentation tank 1 through the L-shaped discharge pipe 2.

[0038] During the process of sedimentation of the flocculated sewage in the flocculation sedimentation tank 1, as the flocculants continue to precipitate and fall to the bottom of the flocculation sedimentation tank 1, sludge is formed, so that a sludge layer is formed at the bottom of the flocculation sedimentation tank 1. After the flocculated sewage has settled for a certain period of time, the staff controls the external driving mechanism to start working, so that the external driving mechanism drives the rear rotating shaft 28 to rotate, and the rear rotating shaft 28 drives the rope drum 36 to start rotating, thereby winding up the connecting rope 37. At the same time, the rear rotating shaft 28 drives the filter cloth drum 33 to rotate through gears and chains, and then the mud pressing filter cloth 34 starts to be released, so that the connecting rope 37 drags the mud pressing filter cloth 34 to gradually cover the sludge, thereby shielding the sludge.

[0039] When the mud filter cloth 34 is pressed onto the sludge, the rear rotating shaft 28 is controlled to stop rotating, and the external driving mechanism is used to control the front rotating shaft 29 to start rotating, and drive the scraper sprocket 30 to rotate, and then the scraper chain 31 starts to rotate, so that the scraper plate 32 starts to move, and the sludge accumulated at the bottom of the flocculation sedimentation tank 1 is scraped. As the scraper plate 32 scrapes the sludge, the sludge gradually moves into the conical sedimentation tank 4, so that the sludge is concentrated and collected in the conical sedimentation tank 4 and accumulated in the conical sedimentation tank 4. After the front rotating shaft 29 rotates for a certain period of time, the front rotating shaft 29 is controlled to stop rotating, so that the sludge accumulated in the flocculation sedimentation tank 1 is moved to the conical sedimentation tank 4 for accumulation and sedimentation.

[0040] In a specific embodiment, by setting the mud pressing filter cloth 34, the sludge is pressed and wrapped by the mud pressing filter cloth 34 before scraping, and then the sludge is scraped by the mud scraper 32, so that the sludge dispersion is reduced as much as possible during the scraping and collection process, thereby ensuring the sludge scraping efficiency.

[0041] In the embodiment, after the sludge has accumulated in the conical sedimentation tank 4 for a certain period of time, the sludge has completely settled to the bottom of the conical sedimentation tank 4. The staff controls the driving mechanism 40 to start working, so that the driving mechanism 40 drives the wire rope drum 38 to release the wire rope 39, thereby causing the hanging frame 10, the outer box body 11 and the inner box body 12 to begin to descend by their own gravity, and at the same time, the mud discharge column 16 below the mud discharge shield 15 gradually descends and contacts the circular sealing plug 23. Then, gravity is used to cause the mud discharge column 16 to push the circular sealing plug 23 downward, thereby opening the outlet end of the U-shaped connecting pipe 6. At the same time, the descent of the circular sealing plug 23 compresses the compression spring 26.

[0042] As the port of the U-shaped connecting pipe 6 is in the open state, the sludge deposited inside the conical sedimentation tank 4 is pressed out from the conical sedimentation tank 4 by the pressure of the water pressure, so that the sludge is discharged from the U-shaped connecting pipe 6 into the inner box body 12, and the discharged sludge is blocked by the mud discharge shield 15, so that the sludge is discharged into the inner box body 12. After the sludge has been discharged for a certain period of time, the control driving mechanism 40 drives the wire rope drum 38 to reel in the wire rope 39, thereby lifting the inner box body 12 and the outer box body 11, so that the mud discharge column 16 rises and gradually separates from the circular sealing plug 23, thereby utilizing the spring of the compression spring 26 and the thrust of the sludge flow to make the circular sealing plug 23 gradually rise and contact with the inner cone seat 20 of the ring, thereby blocking the U-shaped connecting pipe 6 again and stopping the sludge discharge.

[0043] Then the inner box body 12 rises and gradually returns to its original height and hangs in its position. During this process, the sludge and flocculated water inside the inner box body 12 pass through the square box-shaped filter cloth 13 and the water filter holes 14 set between the outer box body 11 and the inner box body 12, so that the flocculated water can quickly pass through the water filter holes 14 and the square box-shaped filter cloth 13, and then the flocculated water flows out of the outer box body 11, and then the flocculated water is retained at the lower end of the sludge treatment chamber 5.

[0044] When the sludge inside the inner box 12 has settled for a certain period of time, a large amount of flocculation water carried in the sludge is removed, so that the sludge can be pumped while maximizing the removal of moisture from the sludge, thereby reducing the discharge of flocculation water and keeping the flocculation sedimentation tank 1 working at a high efficiency. At the same time, the sludge pump 7 is controlled to start working, so that the sludge pump 7 pumps the sludge inside the inner box 12 to the outside of the flocculation sedimentation tank 1, and then performs subsequent treatment on the sludge.

[0045] After the sludge has been extracted many times, when the amount of flocculated water remaining in the sludge treatment chamber 5 is relatively large, the diaphragm pump 42 is controlled to start working, so that the diaphragm pump 42 starts to extract the flocculated water remaining in the sludge treatment chamber 5 through the return pipe 41, and then the flocculated water is returned to the flocculation sedimentation tank 1 for flocculation and sedimentation again, thereby maintaining high-efficiency operation of the flocculation sedimentation tank.

[0046] The sludge at the bottom of the flocculation sedimentation tank 1 is regularly scraped and deposited into the conical sedimentation tank 4, and then the sludge is discharged into the inner box 12 by water pressure. The sludge is filtered to remove the flocculated water, thereby reducing the amount of flocculated water carried in the sludge, and the filtered flocculated water is returned to the flocculation sedimentation tank 1, thereby reducing the waste of flocculated water and keeping the flocculation sedimentation tank 1 in high-efficiency operation.

[0047] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Any changes that may be made to certain parts thereof by those skilled in the art all reflect the principles of the present invention and fall within the scope of protection of the present invention.

Claims

1. A flocculation sludge treatment mechanism for a sewage treatment tank, comprising a flocculation sedimentation tank (1), an L-shaped discharge pipe (2) and an inclined plate pipe (3), wherein the L-shaped discharge pipe is installed above the rear end of the two side surfaces of the flocculation sedimentation tank, and the inclined plate pipe is installed inside the flocculation sedimentation tank, characterized in that: It also includes a sludge scraping mechanism, a conical sedimentation tank (4) and a sludge treatment chamber (5); The conical sedimentation tank is opened at the rear end of the lower surface of the flocculation sedimentation tank; The sludge treatment chamber is located at the rear of the flocculation sedimentation tank. The sludge treatment chamber is connected to the conical sedimentation tank via a U-shaped connecting pipe (6). One end of the U-shaped connecting pipe is inserted into the sludge treatment chamber and extends upward for a certain length. A sludge pump (7) is provided inside the sludge treatment chamber. The sludge pump is higher than the port of the U-shaped connecting pipe. A sludge discharge pipe (8) is installed on the sludge pump. The sludge discharge pipe is fixedly connected to the sludge treatment chamber. A square ring frame (9) is provided inside the sludge treatment chamber. Hanging frames (10) are installed at both ends above the square ring frame. An outer box body (11) is installed on the outer side of the lower surface of the square ring frame. An inner box body (12), the outer box body is sleeved on the inner box body, a square box-shaped filter cloth (13) is provided between the outer box body and the inner box body, a plurality of water filter holes (14) are opened on the surfaces of the outer box body and the inner box body, the water filter holes are evenly distributed on the outer box body and the inner box body, a mud discharge shield (15) is provided above the center of the inner box body, a mud discharge column (16) is installed on the lower surface of the mud discharge shield, one end of the U-shaped connecting pipe is slidably sleeved with an adjusting sleeve (17), the adjusting sleeve is fixedly connected to the outer box body and the inner box body, an annular retaining ring (18) is installed on the upper end of the adjusting sleeve, and a connecting rod (19) is installed between the annular retaining ring and the mud discharge shield; An inner cone seat (20) is installed at the upper end of one end of the U-shaped connecting pipe, a fixed baffle (21) is provided inside the U-shaped connecting pipe, the fixed baffle and the U-shaped connecting pipe are connected by a support rod, an adjusting column (22) is installed on the fixed baffle, a circular sealing plug (23) is provided below the inner cone seat, the upper end of the outer surface of the circular sealing plug is conical, the upper surface of the circular sealing plug is in movable contact with the mud discharge column and is socketed in the inner cone seat, a sealing plug handle (24) is provided at the lower end of the circular sealing plug, a socket slot (25) is provided in the sealing plug handle and the circular sealing plug, the adjusting column is movably inserted in the socket slot, a compression spring (26) is installed at the upper end of the socket slot, and the compression spring is fixedly connected to the adjusting column; The scraping mechanism includes a scraping box (27) and a rear rotating shaft (28), wherein the scraping box is located at the front end below the flocculation sedimentation tank, and a front rotating shaft (29) is provided inside the scraping box, wherein the front rotating shaft is connected to the scraping box via a bearing, and scraping sprockets (30) are installed at both ends of the front rotating shaft, wherein the scraping sprockets are located at both sides of the scraping box, and the rear rotating shaft is located at the rear end below the flocculation sedimentation tank, and the rear rotating shaft is located above the conical sedimentation tank, and scraping sprockets identical to those at both ends of the front rotating shaft are installed at both ends of the rear rotating shaft, wherein the scraping sprockets are connected to the rear rotating shaft via a bearing, and a scraping chain (31) is provided between the scraping sprockets, and a plurality of scraping plates (32) are installed on the scraping chain, wherein the scraping plates are evenly distributed, wherein the lower ends of the scraping plates are in sliding contact with the lower surface of the flocculation sedimentation tank, and the upper ends of the scraping plates are in sliding contact with the outer surface of the scraping box; A filter cloth drum (33) is movably mounted inside the scraper box, the rotating shaft of the filter cloth drum and the rear rotating shaft are driven by gears and chains, a mud pressing filter cloth (34) is rolled up on the filter cloth drum, a support drum (35) is mounted at the lower end of the filter cloth drum, the support drum is in sliding contact with the mud pressing filter cloth, and the mud pressing filter cloth extends out of the scraper box; Rope drums (36) are installed on both sides of the center of the rear rotating shaft, and connecting ropes (37) are installed on the rope drums. The connecting ropes are fixedly connected to one end of the mud pressing filter cloth.

2. A flocculation sludge treatment mechanism for a sewage treatment pool according to claim 1, characterized in that: One end of the front rotating shaft and the rear rotating shaft are respectively connected to the flocculation sedimentation tank through bearings, and the other end of the front rotating shaft and the rear rotating shaft are connected to the flocculation sedimentation tank through mechanical seals, and the other end of the front rotating shaft and the rear rotating shaft extend out of the flocculation sedimentation tank, and the other end of the front rotating shaft and the rear rotating shaft are respectively connected to an external driving mechanism.

3. A flocculation sludge treatment mechanism for a sewage treatment pool according to claim 1, characterized in that: The sludge pump is located inside the inner box.

4. A flocculation sludge treatment mechanism for a sewage treatment pool according to claim 1, characterized in that: Wire rope drums (38) are installed at both ends above the sludge treatment chamber, and the two wire rope drums rotate synchronously through a rotating shaft. Wire ropes (39) are installed on the wire rope drums, and the wire ropes are fixedly connected to the hanging frame. A driving mechanism (40) is installed on one side above the sludge treatment chamber, and the driving mechanism is connected to the wire rope drums.

5. A flocculation sludge treatment mechanism for a sewage treatment pool according to claim 1, characterized in that: A return pipe (41) is installed on one side of the lower surface of the sludge treatment chamber, the return pipe is fixedly connected to the front surface of the flocculation sedimentation tank, and a diaphragm pump (42) is installed on the return pipe.

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