An integrated ecological treatment device for sewage purification

Abstract

The present invention relates to the technical field of sewage treatment, and in particular to an integrated ecological sewage purification treatment device, which includes a reaction tank. A circulation mechanism for circulating activated sludge is provided at one end inside the reaction tank, and a sludge scraping mechanism is provided at the bottom of the reaction tank; the circulation mechanism includes a diaphragm pump installed inside the reaction tank. The output end of the diaphragm pump is connected to a sludge discharge pipe, and the input end of the diaphragm pump is connected to an intermediate pipe. Through the circulation mechanism of the present invention, the activated sludge is continuously circulated, so that the activated sludge is fully mixed with the sewage, improving the treatment effect on the sewage. At the same time, through the impurity separation mechanism therein, the impurity particles in the activated sludge can be separated, ensuring the cleanliness of the activated sludge, preventing the impurity particles from affecting the growth of microorganisms in the activated sludge, and at the same time avoiding the blockage of the impurity particles, enabling the microorganisms in the activated sludge to be fully in contact with the sewage, and further improving the sewage treatment efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a sewage purification integrated ecological treatment device. Background Art

[0002] The activated sludge process is a common sewage treatment method. During the sewage treatment process, the microorganisms in the activated sludge feed on the organic matter in the sewage and convert it into carbon dioxide, water and energy through decomposition and metabolism, thereby reducing the organic matter content in the sewage. Microorganisms also use nutrients such as nitrogen and phosphorus in the sewage for their own growth and reproduction.

[0003] After searching, a Chinese patent with publication number: CN217868534U discloses an activated sludge integrated sewage treatment device, including a casing, a turning device is arranged at the upper right interior of the casing, a cleaning device is arranged at the lower right interior of the casing, a water inlet is opened at the top of the casing, two doors are installed on the outer wall of the casing through a sealing strip, a water outlet is opened on the left side of the casing, and a plurality of heating plates are installed at the lower interior of the casing.

[0004] Based on the above search and combined with actual problems, it was found that the existing activated sludge sewage treatment equipment cannot separate and remove the impurity particles in the activated sludge, and cannot crush the lumps produced in the activated sludge. When the activated sludge contains more impurity particles and lumps, it will affect the normal growth of microorganisms in the activated sludge, and cause the microorganisms to be unable to fully contact with the sewage, which will affect the sewage treatment efficiency of the microorganisms in the activated sludge to a certain extent. Summary of the invention

[0005] The purpose of the present invention is to provide a sewage purification integrated ecological treatment device to solve the problems raised in the above background technology.

[0006] The technical solution of the present invention is: a sewage purification integrated ecological treatment device, including a reaction tank, an inner end of the reaction tank is provided with a circulation mechanism for circulating activated sludge, and a sludge scraping mechanism is provided at the bottom of the reaction tank; the circulation mechanism includes a diaphragm pump installed inside the reaction tank, the output end of the diaphragm pump is connected to a sludge discharge pipe, and the input end of the diaphragm pump is connected to an intermediate pipe, one end of the intermediate pipe is connected to a sludge suction pipe through an impurity separation mechanism; the impurity separation mechanism includes a separation cylinder connected between the intermediate pipe and the sludge suction pipe, a first motor is installed at an outer end of the separation cylinder, a rotating shaft is fixed to the driving end of the first motor, a rotating cylinder is fixed to the outer side of the rotating shaft, a plurality of centrifugal blades are fixed to the outer side of the rotating cylinder, a conveying screw is rotatably connected to the lower side of the separation cylinder, the conveying screw is connected to the rotating shaft through a transmission mechanism, and an anti-caking device for preventing the activated sludge from agglomerating is provided between the rotating cylinder and the separation cylinder.

[0007] Preferably, the anti-caking device includes a fixed sleeve shaft fixed to one end inside the separation cylinder and rotatably sleeved outside the rotating shaft, and a plurality of cutting mechanisms arranged between the rotating cylinder and the fixed sleeve shaft. The cutting mechanism includes two sector plates fixed to the outside of the rotating cylinder, a sliding rod slidably inserted outside the rotating cylinder, and a cam fixed to the outside of the fixed sleeve shaft corresponding to the position of the sliding rod. One end of the sliding rod is fixed with a U-shaped frame. A plurality of arc-shaped grooves are formed inside each of the two sector plates. Arc-shaped cutting blades are fixed at both ends of the U-shaped frame corresponding to the positions of each arc-shaped groove. The other end of the sliding rod is fixed with a bottom plate that can slidably cooperate with the outside of the cam.

[0008] Preferably, a plurality of arc-shaped convex platforms for pushing the sliding rod are arranged on the outside of the cam.

[0009] Preferably, one end of the bottom plate is connected with a return spring sleeved outside the sliding rod, and one end of the return spring abuts against the inside of the rotating cylinder.

[0010] Preferably, the transmission mechanism includes a driving pulley and a driven pulley respectively fixed to one end of the rotating shaft and the conveying screw. The driving pulley and the driven pulley are connected by a synchronous belt for transmission.

[0011] Preferably, an impurity pipe is inserted at one end of the separation cylinder corresponding to the position of the conveying screw. One end of the impurity pipe is threadedly connected with an end cover. A plurality of filter holes are evenly formed on the surface of the end cover, and a collecting hopper is communicated with one end of the end cover. One end of the collecting hopper is connected with a return pipe extending to the inside of the reaction tank.

[0012] Preferably, one ends of the intermediate pipe and the sludge suction pipe are respectively communicated with both ends inside the separation cylinder through a plurality of branch pipes arranged in a circumferential arrangement.

[0013] Preferably, one end of the sludge suction pipe is connected with a lower collecting pipe communicated with the bottom inside the reaction tank. An opening is formed on one side of the lower collecting pipe. One end of the sludge discharge pipe is connected with an upper collecting pipe communicated with the upper end inside the reaction tank. A plurality of rotating pipes are rotatably connected at equal intervals on one side of the upper collecting pipe. A plurality of discharge ports are evenly formed on the outside of each rotating pipe.

[0014] Preferably, a plurality of guide vanes arranged in a circumferential arrangement are fixed at one end of each rotating pipe close to the upper collecting pipe inside.

[0015] Preferably, the scraping mechanism includes two pulley shafts rotatably connected at the lower end of the reaction tank and a second motor installed on the outside of the reaction tank, the driving end of the second motor is fixedly connected to one end of one of the pulley shafts, two synchronous pulleys are symmetrically fixed at both ends of the outer sides of the two pulley shafts, the outer sides of the two synchronous pulleys located at the same end are both transmission-connected with traction belts, and a plurality of rubber scrapers are elastically connected at equal intervals between the two traction belts.

[0016] The present invention provides a sewage purification integrated ecological treatment device through improvement, which has the following improvements and advantages compared with the prior art:

[0017] First, the present invention drives the activated sludge to circulate continuously through the circulation mechanism, so that the activated sludge and sewage are fully mixed, thereby improving the sewage treatment effect. At the same time, the impurity separation mechanism can separate the impurity particles in the activated sludge to ensure the cleanliness of the activated sludge and prevent the impurity particles from affecting the growth of microorganisms in the activated sludge. At the same time, the obstruction of the impurity particles can be avoided, so that the microorganisms in the activated sludge are fully in contact with the sewage, thereby further improving the sewage treatment efficiency.

[0018] Secondly, the present invention uses the anti-caking mechanism in the impurity separation mechanism to cut the agglomerated activated sludge when the activated sludge passes through the separation cylinder, so as to crush the agglomerates of the activated sludge, thereby ensuring the uniformity of the activated sludge and further increasing the contact area between the activated sludge and sewage, thereby ensuring its sewage treatment efficiency.

[0019] Thirdly, the present invention can gather the activated sludge settled at the bottom of the reaction tank to the position of the lower collecting pipe through the scraping mechanism, so that the activated sludge can be completely sucked in, thereby fully circulating the activated sludge, and the activated sludge and the internal impurity particles can completely pass through the impurity separation mechanism, so that the impurity particles settled at the bottom of the reaction tank can be fully separated, further improving the separation effect of the impurity particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure inside the reaction tank of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the circulation mechanism in the present invention;

[0024] Figure 4 It is a schematic internal structure diagram of the separation cylinder in the circulation mechanism of the present invention;

[0025] Figure 5 It is a schematic internal structure diagram of the rotating cylinder in the impurity separation mechanism of the present invention;

[0026] Figure 6 For the present invention Figure 5 The enlarged structural diagram at position A;

[0027] Figure 7 It is a disassembled structural diagram of the rotating cylinder and the sector plate in the present invention;

[0028] Figure 8 It is a schematic cross-sectional structure diagram of the rotating pipe in the present invention.

[0029] Reference numerals:

[0030] 1, reaction tank; 2, diaphragm pump; 3, sludge discharge pipe; 4, intermediate pipe; 5, sludge suction pipe; 6, lower collecting pipe; 7, upper collecting pipe; 8, opening; 9, rotating pipe; 10, discharge port; 11, guide vane; 101, separation cylinder; 102, first motor; 103, rotating shaft; 104, rotating cylinder; 105, centrifugal blade; 107, conveying screw; 108, impurity pipe; 109, end cover; 110, collecting hopper; 111, return pipe; 112, driven pulley; 113, driving pulley; 114, synchronous belt; 115, branch pipe; 201, fixed sleeve shaft; 202, cam; 203, sector plate; 204, arc groove; 205, sliding rod; 206, bottom plate; 207, return spring; 208, U-shaped frame; 209, arc cutting blade; 210, arc boss; 301, second motor; 302, pulley shaft; 303, synchronous pulley; 304, traction belt; 305, rubber squeegee. Detailed implementation manners

[0031] The present invention will be described in detail below. The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] The present invention provides an integrated ecological treatment device for sewage purification by improvement. The technical solution of the present invention is as follows:

[0033] As Figures 1 to 8As shown, an embodiment of the present invention provides an integrated ecological treatment device for sewage purification, including a reaction tank 1, wherein a circulation mechanism for circulating activated sludge is arranged at one end of the inner side of the reaction tank 1, and a sludge scraping mechanism is arranged at the bottom of the reaction tank 1; the circulation mechanism includes a diaphragm pump 2 installed inside the reaction tank 1, the output end of the diaphragm pump 2 is connected to a sludge discharge pipe 3, and the input end of the diaphragm pump 2 is connected to an intermediate pipe 4, and one end of the intermediate pipe 4 is connected to a sludge suction pipe 5 through an impurity separation mechanism; the impurity separation mechanism includes a diaphragm pump 2 connected to the intermediate pipe 4 and the sludge suction pipe 5; A separation cylinder 101 is provided between the tubes 5, and a first motor 102 is installed at one end of the outer side of the separation cylinder 101, a rotating shaft 103 is fixed to the driving end of the first motor 102, a rotating cylinder 104 is fixed to the outer side of the rotating shaft 103, and a plurality of centrifugal blades 105 are fixed to the outer side of the rotating cylinder 104, a conveying screw 107 is rotatably connected to the lower side of the separation cylinder 101, and the conveying screw 107 is connected to the rotating shaft 103 through a transmission mechanism, and an anti-caking device is provided between the rotating cylinder 104 and the separation cylinder 101 to prevent the activated sludge from clumping.

[0034] Furthermore, the anti-caking device includes a fixed sleeve shaft 201 fixed to one end of the inner side of the separation cylinder 101 and rotatably sleeved on the outer side of the rotating shaft 103, a plurality of cutting mechanisms arranged between the rotating cylinder 104 and the fixed sleeve shaft 201, the cutting mechanism includes two sector plates 203 fixed to the outer side of the rotating cylinder 104, a slide bar 205 slidably inserted on the outer side of the rotating cylinder 104, and a cam 202 fixed to the outer side of the fixed sleeve shaft 201 at a position corresponding to the slide bar 205, and a plurality of push rods for pushing the slide bar 205 are arranged on the outer side of the cam 202. The arc-shaped boss 210, a U-shaped frame 208 is fixed at one end of the slide bar 205, a plurality of arc-shaped grooves 204 are opened inside the two sector plates 203, arc-shaped cutting pieces 209 are fixed at the positions of the two ends of the U-shaped frame 208 corresponding to each arc-shaped groove 204, a bottom plate 206 that can slide with the outside of the cam 202 is fixed at the other end of the slide bar 205, and a return spring 207 sleeved on the outside of the slide bar 205 is connected to one end of the bottom plate 206, and one end of the return spring 207 is against the inner side of the rotating drum 104;

[0035] The anti-caking mechanism cuts the agglomerated activated sludge when the activated sludge passes through the separation cylinder 101, thereby crushing the agglomerates of the activated sludge, thereby ensuring the uniformity of the activated sludge and further increasing the contact area between the activated sludge and sewage, thereby ensuring its sewage treatment efficiency.

[0036] Furthermore, the transmission mechanism includes a driving pulley 113 and a driven pulley 112 respectively fixed to the rotating shaft 103 and one end of the conveying screw 107, and the driving pulley 113 and the driven pulley 112 are connected to each other through a synchronous belt 114;

[0037] When the rotating shaft 103 rotates, the driving pulley 113 of the transmission mechanism is driven to rotate, and the driving pulley 113 drives the driven pulley 112 to rotate through the synchronous belt 114, thereby driving the conveying screw 107 to be linked, so as to realize centrifugal separation of impurity particles in the activated sludge, and at the same time, the separated impurity particles can be pushed to the inside of the impurity pipe 108 to prevent the impurity particles from flowing back into the activated sludge inside the separation cylinder 101.

[0038] Furthermore, an impurity pipe 108 is inserted at one end of the separation cylinder 101 at a position corresponding to the conveying screw 107, and one end of the impurity pipe 108 is threadedly connected to an end cap 109, and a plurality of filter holes are evenly opened on the surface of the end cap 109, and one end of the end cap 109 is connected to a gathering bucket 110, and one end of the gathering bucket 110 is connected to a reflux pipe 111 extending to the inner side of the reaction tank 1;

[0039] Under the pushing action of the rotating conveying screw 107, the activated sludge containing impurity particles can be pushed to the inner side of the impurity pipe 108, and the activated sludge can flow into the inner side of the gathering bucket 110 through the filter holes at the end of the impurity pipe 108, and then flow back to the inner side of the reaction tank 1 through the reflux pipe 111, while the larger impurity particles will be blocked on the inner side of the impurity pipe 108, so that the impurity particles can be separated and stored on the inner side of the impurity pipe 108, so that the impurity particles in the activated sludge can be removed to ensure the cleanliness of the activated sludge.

[0040] Furthermore, one end of the intermediate pipe 4 and the mud suction pipe 5 are respectively connected to the inner ends of the separation cylinder 101 through a plurality of circumferentially arranged branch pipes 115;

[0041] The activated sludge in the sludge suction pipe 5 can flow evenly into the separation cylinder 101, and the activated sludge separated from impurities in the separation cylinder 101 can flow evenly into the inner side of the intermediate pipe 4, ensuring that the activated sludge can circulate more smoothly.

[0042] Furthermore, one end of the mud suction pipe 5 is connected to a lower manifold 6 connected to the bottom of the inner side of the reaction tank 1, and an opening 8 is provided on one side of the lower manifold 6. One end of the mud discharge pipe 3 is connected to an upper manifold 7 connected to the upper end of the inner side of the reaction tank 1. One side of the upper manifold 7 is rotatably connected to a plurality of rotating pipes 9 at equal intervals. A plurality of discharge ports 10 are evenly provided on the outer side of each rotating pipe 9. A plurality of guide vanes 11 arranged in a circumference are fixed to the inner side of each rotating pipe 9 near one end of the upper manifold 7.

[0043] The lower collecting pipe 6 can evenly suck the activated sludge at the bottom of the reaction tank 1 into the sludge suction pipe 5 of the circulation mechanism, and the upper collecting pipe 7 can evenly spray the activated sludge discharged from the sludge discharge pipe 3 of the circulation mechanism into the sewage in the reaction tank 1, thereby increasing the contact area between the activated sludge and the sewage and improving the sewage purification efficiency.

[0044] Further, the sludge scraping mechanism includes two pulley shafts 302 rotatably connected to the inner part of the reaction tank 1 at the lower end position and a second motor 301 installed outside the reaction tank 1. The driving end of the second motor 301 is fixedly connected to one end of one of the pulley shafts 302. Two synchronous pulleys 303 are symmetrically and fixedly arranged at both outer ends of the two pulley shafts 302. A traction belt 304 is drivingly connected to the outside of the two synchronous pulleys 303 at the same end. A plurality of rubber scraping plates 305 are elastically connected at equal intervals between the two traction belts 304;

[0045] Through the sludge scraping mechanism, the activated sludge deposited at the bottom of the reaction tank 1 can be gathered towards the position of the downward collecting pipe 6, so that the activated sludge can be completely sucked in, so that the activated sludge is fully circulated, and the activated sludge and the internal impurity particles can completely pass through the impurity separation mechanism, so that the impurity particles deposited at the bottom of the reaction tank 1 can be fully separated, further improving the separation effect on the impurity particles.

[0046] Working principle: When in use, the activated sludge for cleaning sewage is put into the inner side of the reaction tank 1, and then the sewage is introduced into the inner side of the reaction tank 1. Since the density of the activated sludge is relatively large, it can settle to the bottom end of the reaction tank 1. In order to make the activated sludge fully contact with the sewage and improve the sewage treatment efficiency, the diaphragm pump 2 of the circulation mechanism can be controlled to operate. When the diaphragm pump 2 operates, it can suck the activated sludge at the bottom of the reaction tank 1 into the inner side of the sludge suction pipe 5 through the opening 8 and the downward collecting pipe 6, and then flow into the inner side of the sludge discharge pipe 3 through the intermediate pipe 4 and the impurity separation mechanism. Then, it flows into the inner side of the upward collecting pipe 7 through one end of the sludge discharge pipe 3, and then evenly flows into the inner side of each rotating pipe 9. Finally, it is evenly sprayed into the sewage at the upper end inside the reaction tank 1 through a plurality of discharge ports 10 on the outside of each rotating pipe 9. The activated sludge gradually settles downward from the sewage at the upper end inside the reaction tank 1, so that it can gradually contact the sewage at different depths, making the microorganisms in the activated sludge fully contact with the sewage and improving the sewage treatment efficiency. Moreover, a plurality of guide vanes 11 arranged in a circular pattern are fixedly arranged at the position near the upward collecting pipe 7 at one end inside each rotating pipe 9. Therefore, under the impact of the activated sludge, the rotating pipe 9 can be driven to rotate through the guide vanes 11, and the rotating pipe 9 drives the plurality of discharge ports 10 on its outside to rotate, so that the activated sludge sprayed out through the plurality of discharge ports 10 is more evenly distributed in the sewage, further increasing the contact area between the sewage and the activated sludge;

[0047] When the activated sludge flows through the inside of the separation cylinder 101 of the impurity separation mechanism, the first motor 102 of the impurity separation mechanism operates to drive the rotation of the rotating shaft 103. The rotating shaft 103 drives the rotation of the rotating cylinder 104, and the rotating cylinder 104 can drive the rotation of a plurality of centrifugal blades 105 on its outer side. The plurality of centrifugal blades 105 can drive the activated sludge flowing through the inside of the separation cylinder 101 to rotate. Since the impurity particles in the activated sludge have a greater density, the mass of the impurity particles per unit volume is greater. When rotating at high speed, the centrifugal force received by the impurity particles is greater. Therefore, the impurity particles are more likely to move towards the inner wall position of the separation cylinder 101. Therefore, while the impurity particles are rotating, they will gradually gather towards the inner wall of the separation cylinder 101. While the rotating shaft 103 is rotating, it drives the rotation of the driving pulley 113 of the transmission mechanism. The driving pulley 113 drives the rotation of the driven pulley 112 through the synchronous belt 114, and the driven pulley 112 drives the rotation of the conveying screw 107. When the impurity particles pass through the position of the conveying screw 107, under the pushing action of the rotating conveying screw 107, the activated sludge containing the impurity particles can be pushed towards the inside of the impurity pipe 108. The activated sludge can flow into the inside of the gathering hopper 110 through the filter holes at the end of the impurity pipe 108, and then flow back to the inside of the reaction tank 1 through the return pipe 111. However, the larger impurity particles will be blocked inside the impurity pipe 108, so that the impurity particles can be separately separated and stored inside the impurity pipe 108, thereby removing the impurity particles in the activated sludge, ensuring the cleanliness of the activated sludge, preventing the impurity particles from affecting the growth of microorganisms in the activated sludge, and at the same time avoiding the blockage of the impurity particles, enabling the microorganisms in the activated sludge to come into full contact with the sewage;

[0048] While the activated sludge flows through the inside of the separation cylinder 101, the rotary cylinder 104 can drive the anti-caking mechanism to rotate while rotating. Each cutting mechanism in the anti-caking mechanism rotates synchronously. The sector plate 203 of the cutting mechanism rotates synchronously with the rotary cylinder 104. At the same time, the sliding rod 205 therein also rotates. Since the fixed sleeve shaft 201 in the anti-caking mechanism is fixed to one end inside the separation cylinder 101, the fixed sleeve shaft 201 and the cam 202 outside it do not rotate. When the sliding rod 205 of the cutting mechanism rotates with the rotary cylinder 104, the bottom plate 206 at one end of the sliding rod 205 slides along the outside of the cam 202 and the arc-shaped boss 210. When the bottom plate 206 slides to the outside of the arc-shaped boss 210, the bottom plate 206 is pushed by the arc-shaped boss 210, which can drive the sliding rod 205 to extend outward from the rotary cylinder 104, and at the same time compress the return spring 207. The sliding rod 205 drives the U-shaped frame 208 to move, and the U-shaped frame 208 drives a plurality of arc-shaped cutting blades 209 at both ends to slide along one side of the sector plate 203. When the bottom plate 206 slides from the outside of the arc-shaped boss 210 to the outside of the cam 202, at this time the return spring 207 releases its elastic force to push the bottom plate 206 and the sliding rod 205 to retract inward from the rotary cylinder 104, thereby driving the U-shaped frame 208 and a plurality of arc-shaped cutting blades 209 to move in the reverse direction. Therefore, as the rotary cylinder 104 rotates continuously, a plurality of arc-shaped cutting blades 209 can continuously reciprocate on one side of the sector plate 203. When the caking in the activated sludge passes through the inside of the arc-shaped groove 204, the rapidly reciprocating arc-shaped cutting blades 209 can cut the passing caking, crush the caking, thereby improving the uniformity of the activated sludge, further increasing the contact area between the activated sludge and the sewage, and thus ensuring its sewage treatment efficiency;

[0049] The operation of the second motor 301 of the sludge scraping mechanism can drive a pulley shaft 302 at the corresponding position to rotate. This pulley shaft 302 drives two synchronous pulleys 303 at both ends thereof to rotate. These two synchronous pulleys 303 drive two traction belts 304 and two other synchronous pulleys 303 to rotate synchronously. The two traction belts 304 can drive a plurality of rubber scraping plates 305 to continuously move in a circular motion along the contour track of the traction belts 304. When each rubber scraping plate 305 moves to the lower part near the bottom surface of the reaction tank 1, it can push the activated sludge deposited on the bottom surface of the reaction tank 1 towards the end where the downward collecting pipe 6 is located, so that the deposited activated sludge can gather at the position of the downward collecting pipe 6, so that the activated sludge can circulate fully, and the activated sludge and the internal impurity particles can completely pass through the impurity separation mechanism, so that the impurity particles deposited at the bottom of the reaction tank 1 can be fully separated, further improving the separation effect of the impurity particles.

[0050] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sewage purification integrated ecological treatment device, comprising a reaction tank (1), characterized in that: A circulation mechanism for circulating activated sludge is provided at one end of the inner side of the reaction tank (1), and a sludge scraping mechanism is provided at the bottom of the reaction tank (1); The circulation mechanism comprises a diaphragm pump (2) installed inside the reaction tank (1), the output end of the diaphragm pump (2) is connected to a mud discharge pipe (3), and the input end of the diaphragm pump (2) is connected to an intermediate pipe (4), and one end of the intermediate pipe (4) is connected to a mud suction pipe (5) through an impurity separation mechanism; The impurity separation mechanism comprises a separation cylinder (101) connected between an intermediate pipe (4) and a sludge suction pipe (5); a first motor (102) is installed at one end of the outer side of the separation cylinder (101); a rotating shaft (103) is fixed to the driving end of the first motor (102); a rotating cylinder (104) is fixed to the outer side of the rotating shaft (103); a plurality of centrifugal blades (105) are fixed to the outer side of the rotating cylinder (104); a conveying screw (107) is rotatably connected to the lower side of the separation cylinder (101); the conveying screw (107) is connected to the rotating shaft (103) via a transmission mechanism; and an anti-caking device for preventing activated sludge from agglomerating is provided between the rotating cylinder (104) and the separation cylinder (101).

2. The sewage purification integrated ecological treatment device according to claim 1 is characterized by: The anti-caking device comprises a fixed sleeve shaft (201) fixed to one end of the inner side of the separation cylinder (101) and rotatably sleeved on the outer side of the rotating shaft (103), a plurality of cutting mechanisms arranged between the rotating cylinder (104) and the fixed sleeve shaft (201), the cutting mechanisms comprising two sector plates (203) fixed to the outer side of the rotating cylinder (104), a sliding rod (205) slidably inserted on the outer side of the rotating cylinder (104), and a corresponding sliding rod (206) fixed to the outer side of the fixed sleeve shaft (201). A cam (202) is fixed at a position of the sliding rod (205), a U-shaped frame (208) is fixed at one end of the sliding rod (205), a plurality of arc-shaped grooves (204) are provided inside the two sector plates (203), arc-shaped cutting pieces (209) are fixed at the positions of the two ends of the U-shaped frame (208) corresponding to each arc-shaped groove (204), and a bottom plate (206) that can slide with the outer side of the cam (202) is fixed at the other end of the sliding rod (205).

3. The sewage purification integrated ecological treatment device according to claim 2 is characterized by: A plurality of arc-shaped bosses (210) for pushing the slide rod (205) are arranged on the outer side of the cam (202).

4. The sewage purification integrated ecological treatment device according to claim 2 is characterized by: One end of the bottom plate (206) is connected to a return spring (207) sleeved on the outside of the slide rod (205), and one end of the return spring (207) abuts against the inner side of the rotating drum (104).

5. The sewage purification integrated ecological treatment device according to claim 1 is characterized by: The transmission mechanism comprises a driving pulley (113) and a driven pulley (112) respectively fixed to one end of the rotating shaft (103) and the conveying screw (107); the driving pulley (113) and the driven pulley (112) are connected to each other through a synchronous belt (114).

6. The sewage purification integrated ecological treatment device according to claim 1 is characterized by: An impurity pipe (108) is inserted at one end of the separation cylinder (101) at a position corresponding to the conveying screw (107), and one end of the impurity pipe (108) is threadedly connected to an end cover (109), a surface of the end cover (109) is evenly provided with a plurality of filter holes, and one end of the end cover (109) is connected to a gathering bucket (110), and one end of the gathering bucket (110) is connected to a reflux pipe (111) extending to the inner side of the reaction tank (1).

7. The sewage purification integrated ecological treatment device according to claim 1 is characterized by: One end of the intermediate pipe (4) and the mud suction pipe (5) are respectively connected to the inner ends of the separation cylinder (101) through a plurality of circumferentially arranged branch pipes (115).

8. The sewage purification integrated ecological treatment device according to claim 1 is characterized by: One end of the mud suction pipe (5) is connected to a lower collecting pipe (6) connected to the inner bottom of the reaction tank (1), and one side of the lower collecting pipe (6) is provided with an opening (8). One end of the mud discharge pipe (3) is connected to an upper collecting pipe (7) connected to the inner upper end of the reaction tank (1), and one side of the upper collecting pipe (7) is rotatably connected to a plurality of rotating pipes (9) at equal intervals, and a plurality of discharge ports (10) are evenly provided on the outer side of each rotating pipe (9).

9. The sewage purification integrated ecological treatment device according to claim 8 is characterized by: A plurality of guide vanes (11) arranged in a circumferential pattern are fixed to the inner side of each rotating tube (9) at one end close to the upper collecting tube (7).

10. The sewage purification integrated ecological treatment device according to claim 1 is characterized by: The sludge scraping mechanism comprises two pulley shafts (302) rotatably connected to the lower end of the reaction tank (1) and a second motor (301) installed on the outside of the reaction tank (1); the driving end of the second motor (301) is fixedly connected to one end of one of the pulley shafts (302); two synchronous pulleys (303) are symmetrically fixed to both ends of the outer sides of the two pulley shafts (302); the outer sides of the two synchronous pulleys (303) located at the same end are both transmission-connected to a traction belt (304); and a plurality of rubber scrapers (305) are elastically connected at equal intervals between the two traction belts (304).

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