Sludge and wastewater treatment equipment for water conservancy project

Abstract

The invention discloses sludge wastewater treatment equipment for hydraulic engineering, and belongs to the technical field of sewage treatment, and the sludge wastewater treatment equipment is technically characterized by comprising an equipment body, and the equipment body is communicated with a water inlet pipe for injecting wastewater. The feeding treatment mechanism can be correspondingly driven to operate, so that solid-liquid layering can be efficiently broken through rapid stirring above, sludge-liquid homogeneous mixing is achieved, meanwhile, the reaction rate of a solid agent can be increased conveniently, the pretreatment effect is improved, untreated sludge can be prevented from being directly deposited at the bottom of equipment through a scraping plate arranged above a filter plate, and the treatment effect is improved. The sewage treatment device has the advantages that the sewage treatment device is simple in structure and convenient to use, equipment cleaning frequency is reduced, floc polymerization and forming can be well promoted, solid-liquid separation effect is enhanced, stability of water can be maintained, secondary floating of settled sludge is avoided, stability of effluent quality is improved, and the sewage treatment device has the advantages of convenience in timely addition of a flocculant and good treatment effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sewage treatment, in particular to a sludge wastewater treatment equipment for water conservancy projects. BACKGROUND

[0002] As an important infrastructure of the national economy, water conservancy projects cover river dredging, reservoir construction, dam reinforcement, irrigation reconstruction and water conservancy hub construction and other fields. In the process of construction and operation and maintenance, a large amount of sludge wastewater will inevitably be produced. This kind of pollutant has complex composition, large discharge and significant fluctuation, which has become one of the key problems restricting the green development of water conservancy projects.

[0003] The existing sludge wastewater treatment mainly uses physical method, chemical method and combined process. When chemical treatment is carried out, flocculants and coagulants are added to make sludge particles coagulate and precipitate. However, the flocculants commonly used in sewage treatment are in solid and liquid forms, and sewage treatment is usually classified. The first reaction tank is usually a rapid stirring zone, and the second reaction tank is usually a slow stirring zone. The existing sewage treatment cannot well control the addition and use of flocculants according to the type of reaction tank during multi-stage treatment, resulting in a great reduction in the treatment efficiency of sewage, poor applicability and inability to meet the actual use requirements.

[0004] Therefore, it is necessary to provide a sludge wastewater treatment equipment for water conservancy projects to solve the above problems. SUMMARY

[0005] In view of the deficiencies in the prior art, the purpose of the embodiments of the present application is to provide a sludge wastewater treatment equipment for water conservancy projects to solve the technical problems proposed in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: A sludge wastewater treatment equipment for water conservancy projects, comprising an equipment body, a water inlet pipe for injecting wastewater is communicated on the equipment body, a filter plate for layered filtration is arranged in the equipment body, the inner part of the equipment body is divided into two regions of a first treatment zone and a second treatment zone, further comprising: A staged stirring mechanism is installed in the equipment body for rapid stirring in the first treatment zone and slow stirring treatment in the second treatment zone. The staged stirring mechanism comprises a slow stirring shaft for slow stirring and a rapid stirring shaft sleeve for rapid stirring. The rapid stirring shaft sleeve is rotatably installed outside the slow stirring shaft. A plurality of scraper plates for scraping the filter plate are arranged on the rapid stirring shaft sleeve. The feeding treatment mechanism is installed on the equipment body, driven by the hierarchical stirring mechanism, used for feeding solid medicaments into the first treatment area and feeding liquid medicaments into the second treatment area, comprising a rotating disc for feeding driving, a guide rod, a second traction rod and a liquid feeding cylinder, the liquid feeding cylinder is symmetrically provided with a first piston and a second piston at both ends for liquid feeding connection, the guide rod reciprocates by the rotation of the rotating disc, and the first piston and the second piston reciprocate synchronously by the traction of the second traction rod and the guide rod.

[0007] As a further scheme of the present application, the feeding treatment mechanism further comprises a first traction rod for driving the first piston to reciprocate, the rotating disc is rotatably installed on the first supporting plate through a second connecting shaft, the first supporting plate is fixedly installed on the equipment body, the first traction rod is limitingly and slidably connected to the second supporting plate through the guide rod, the second supporting plate is fixedly installed on the equipment body, one end of the guide rod is fixedly connected with a traction frame, the rotating disc is provided with a traction column adaptedly and slidably connected with the traction frame, the other side of the first traction rod is fixedly connected with a third traction rod, one end of the third traction rod is rotatably installed on the first piston.

[0008] As a further scheme of the present application, the feeding treatment mechanism further comprises a fourth traction rod, a first U-shaped rotating plate and a second U-shaped rotating plate for driving the second piston to reciprocate synchronously, one end of the fourth traction rod is rotatably installed on the second piston, the other end of the fourth traction rod is rotatably installed on the second U-shaped rotating plate, one side of the second U-shaped rotating plate is symmetrically fixedly connected with the first U-shaped rotating plate, the first U-shaped rotating plate and the second U-shaped rotating plate are rotatably installed on the third supporting plate, one end of the second traction rod is rotatably connected to the first U-shaped rotating plate, and the other end of the second traction rod is rotatably installed at both ends of the first traction rod.

[0009] As a further scheme of the present application, the feeding treatment mechanism further comprises a liquid feeding pipe and a liquid guide pipe for liquid feeding connection, the liquid feeding pipe and the liquid guide pipe are in communication with the inside of the liquid feeding cylinder, one end of the liquid feeding pipe extends into the inside of the second treatment area, the liquid feeding pipe is provided with a first one-way valve, one end of the liquid guide pipe is fixedly connected with a liquid storage tank, the liquid storage tank is installed on the equipment body, and the liquid guide pipe is provided with a second one-way valve.

[0010] As a further scheme of the present application, the feeding processing mechanism further comprises a feeding cylinder for feeding solid medicaments, the feeding cylinder is fixedly installed outside the equipment body, the feeding cylinder is communicated with the interior of the first processing area through a feeding pipe, a screw blade for feeding is arranged in the feeding cylinder, the screw blade is rotatably installed in the interior of the feeding cylinder through a feeding shaft, a feeding pipe is arranged above the feeding cylinder, one end of the feeding shaft is fixedly connected with a third connecting shaft, the third connecting shaft is rotatably connected with a fourth connecting shaft through a bevel gear pair, the fourth connecting shaft is fixedly installed at one side of the first U-shaped rotating plate, and the fourth connecting shaft is rotatably connected to the third supporting plate.

[0011] As a further scheme of the present application, the grading stirring mechanism further comprises a motor for driving the slow stirring shaft to rotate, the slow stirring shaft is rotatably installed on the equipment body, one end of the slow stirring shaft is rotatably connected to one end of a worm through a one-way bearing, the worm is rotatably installed on the equipment body, the worm is meshingly connected to a worm wheel, the worm wheel is fixedly installed at one end of a second connecting shaft, the slow stirring shaft is rotatably connected to the output shaft of the motor through a gear pair, and the motor is fixedly installed on the equipment body.

[0012] As a further scheme of the present application, the grading stirring mechanism further comprises a first gear and a second gear for driving the fast stirring shaft sleeve to rotate rapidly, the fast stirring shaft sleeve is rotatably installed in the interior of the equipment body, the slow stirring shaft is further fixedly connected with the first gear, the first gear is meshingly connected to the second gear, the second gear is rotatably installed in the interior of the equipment body through a first connecting shaft, the first connecting shaft is rotatably connected with the fast stirring shaft sleeve through a synchronous belt, and the diameter of the first gear is much larger than that of the second gear.

[0013] As a further scheme of the present application, the fast stirring shaft sleeve is fixedly connected with a plurality of first stirring blades for stirring, the slow stirring shaft is fixedly connected with a plurality of second stirring blades for stirring, a first drain pipe is arranged at the region of the first processing area on the equipment body, a second drain pipe is arranged at the region of the second processing area on the equipment body, and valves are arranged on the first drain pipe and the second drain pipe.

[0014] Compared with the prior art, the embodiments of the present application have the following beneficial effects: The hierarchical stirring mechanism is arranged, hierarchical treatment of sewage is realized, and the feeding treatment mechanism is correspondingly driven to work, so that the upper rapid stirring can efficiently break the solid-liquid stratification, realize homogeneous mixing of mud liquid, facilitate acceleration of the reaction rate of solid medicaments, improve pretreatment effect, and can strengthen impurity stripping, reduce subsequent treatment load, and the scraper arranged above the filter plate can avoid untreated sludge directly deposited at the bottom of the equipment, reduce equipment cleaning frequency, reduce operation and maintenance workload, and the slow stirring treatment mode at the lower part can promote flocculation and formation, strengthen solid-liquid separation effect, maintain water stability, avoid secondary floating of deposited sludge, ensure orderly solid-liquid separation process, and improve stability of effluent water quality.

[0015] In order to more clearly set forth the structural features and effects of the present application, the present application will be described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the embodiment of the application.

[0017] Figure 2 It is a side view structural schematic diagram of the embodiment of the application.

[0018] Figure 3 It is Figure 2 An enlarged structural schematic diagram of A.

[0019] Figure 4 It is a sectional view structural schematic diagram of the inside of the equipment body in the embodiment of the application.

[0020] Figure 5 It is a bottom view structural schematic diagram of the inside section of the equipment body in the embodiment of the application.

[0021] Figure 6 It is a top view structural schematic diagram of the inside connection of the equipment body in the embodiment of the application.

[0022] Figure 7 It is Figure 6 An enlarged structural schematic diagram of B.

[0023] Figure 8 It is a side view structural schematic diagram of the inside connection of the equipment body in the embodiment of the application.

[0024] Figure 9 It is Figure 8 An enlarged structural schematic diagram of C.

[0025] Figure 10 It is a connection structural schematic diagram of the turntable in the embodiment of the application.

[0026] Figure 11 It is Figure 10 An enlarged structural schematic diagram of D.

[0027] Figure 12 This is a schematic diagram of the connection structure of the rapid stirring shaft sleeve in an embodiment of the invention.

[0028] Figure 13 for Figure 12 A magnified structural diagram of E in the middle.

[0029] Reference numerals: 1. Equipment body; 2. Inlet pipe; 3. Filter plate; 4. First treatment zone; 5. Second treatment zone; 6. First drain pipe; 7. Second drain pipe; 8. Worm gear; 9. One-way bearing; 10. Slow-speed stirring shaft; 11. Fast-speed stirring shaft sleeve; 12. First gear; 13. Second gear; 14. First connecting shaft; 15. Synchronous belt; 16. Gear pair; 17. Motor; 18. First stirring blade; 19. Scraper; 20. Second stirring blade; 21. Worm gear; 22. Second connecting shaft; 23. First support plate; 24. Turntable; 25. Traction column; 26. Traction frame; 27. 28. Guide rod; 29. ​​Second support plate; 30. First traction rod; 31. Second traction rod; 32. Third traction rod; 33. First piston; 34. Infusion cylinder; 35. Second piston; 36. Third support plate; 37. First U-shaped rotating plate; 38. Second U-shaped rotating plate; 39. Fourth traction rod; 40. Bevel gear pair; 41. Third connecting shaft; 42. Feed shaft; 43. Screwdriver blade; 44. Feed cylinder; 45. Guide pipe; 46. Feed pipe; 47. Infusion pipe; 48. First one-way valve; 49. Guide pipe; 50. Second one-way valve; 51. Storage tank; 52. Fourth connecting shaft. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0031] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0032] See Figures 1-13 A sludge wastewater treatment device for water conservancy projects includes a device body 1, an inlet pipe 2 for injecting wastewater connected to the device body 1, and a filter plate 3 for stratified filtration installed inside the device body 1, the filter plate 3 dividing the interior of the device body 1 into two areas: a first treatment zone 4 and a second treatment zone 5. The device body 1 also includes: The graded stirring mechanism is installed inside the equipment body 1 and is used to perform rapid stirring in the first processing zone 4 and slow stirring in the second processing zone 5. The graded stirring mechanism includes a slow stirring shaft 10 for slow stirring and a fast stirring shaft sleeve 11 for rapid stirring. The fast stirring shaft sleeve 11 is rotatably mounted on the outside of the slow stirring shaft 10. Several scrapers 19 for cleaning the filter plate 3 are provided on the fast stirring shaft sleeve 11.

[0033] Furthermore, the grading mixing mechanism also includes a motor 17 for driving the slow mixing shaft 10 to rotate. The slow mixing shaft 10 is rotatably mounted on the equipment body 1, and one end of the slow mixing shaft 10 is connected to one end of the worm gear 8 through a one-way bearing 9. The worm gear 8 is rotatably mounted on the equipment body 1 and meshes with the worm wheel 21. The worm wheel 21 is fixedly mounted on one end of the second connecting shaft 22. The slow mixing shaft 10 is rotatably connected to the output shaft of the motor 17 through a gear pair 16. The motor 17 is fixedly mounted on the equipment body 1.

[0034] Furthermore, the graded mixing mechanism also includes a first gear 12 and a second gear 13 for driving the fast mixing shaft sleeve 11 to rotate and mix rapidly. The fast mixing shaft sleeve 11 is rotatably installed inside the equipment body 1. The first gear 12 is also fixedly connected to the slow mixing shaft 10. The first gear 12 is meshed with the second gear 13. The second gear 13 is rotatably installed inside the equipment body 1 through the first connecting shaft 14. The first connecting shaft 14 is rotatably connected to the fast mixing shaft sleeve 11 through the synchronous belt 15. The diameter of the first gear 12 is much larger than that of the second gear 13.

[0035] Furthermore, a number of first stirring blades 18 for stirring are fixedly connected to the fast stirring shaft sleeve 11, and a number of second stirring blades 20 for stirring are fixedly connected to the slow stirring shaft 10. A first drain pipe 6 is provided on the equipment body 1 in the area of ​​the first processing zone 4, and a second drain pipe 7 is provided on the equipment body 1 in the area of ​​the second processing zone 5. Both the first drain pipe 6 and the second drain pipe 7 are equipped with valves.

[0036] Preferably, when the equipment body 1 is treating sludge and wastewater, wastewater is injected through the upper inlet pipe 2, and the filter plate 3 inside the equipment body 1 performs filtration. At this time, the output shaft of the motor 17 rotates in the forward direction. Due to the one-way bearing 9, the worm gear 8 does not rotate. Under the connection of the gear pair 16, the slow stirring shaft 10 is driven to rotate. At this time, the slow stirring shaft 10 drives the first gear 12 to rotate. Since the diameter of the first gear 12 is much larger than that of the second gear 13, the first connecting shaft 14 on the second gear 13 is driven to rotate rapidly, and the synchronous belt... The transmission connection of 15 drives the fast stirring shaft sleeve 11 to drive the first stirring blade 18 to perform rapid stirring, thereby completing the rapid stirring of the first treatment zone 4 in the equipment body 1. Meanwhile, the slow stirring shaft 10 drives the scraper 19 below to perform cleaning, thereby avoiding clogging at the filter plate 3 and achieving rapid filtration of wastewater. Due to the slow driving of the slow stirring shaft 10, the slow stirring shaft 10 drives the second stirring blade 20 to perform slow stirring in the second treatment zone 5 in the equipment body 1, thus facilitating multi-stage treatment of wastewater.

[0037] like Figures 1-13 As shown, this embodiment, based on the above embodiment, also includes a feeding and processing mechanism, which is installed on the equipment body 1 and controlled and driven by a graded stirring mechanism. It is used to feed solid agents into the first processing zone 4 and liquid agents into the second processing zone 5. The feeding and processing mechanism includes a turntable 24 for feeding and driving, a guide rod 27, a second traction rod 30, and an infusion cylinder 33. The infusion cylinder 33 has a first piston 32 and a second piston 34 symmetrically arranged at both ends for infusion connection. The guide rod 27 moves back and forth through the rotation of the turntable 24, and the first piston 32 and the second piston 34 move back and forth synchronously through the traction of the second traction rod 30 and the guide rod 27.

[0038] Furthermore, the feeding and processing mechanism also includes a first traction rod 29 for driving the first piston 32 to reciprocate. The turntable 24 is rotatably mounted on the first support plate 23 via the second connecting shaft 22. The first support plate 23 is fixedly mounted on the equipment body 1. The first traction rod 29 is limited and slidably connected to the second support plate 28 via the guide rod 27. The second support plate 28 is fixedly mounted on the equipment body 1. One end of the guide rod 27 is fixedly connected to a traction frame 26. The turntable 24 is provided with a traction column 25 that is adapted to and slidably connected to the traction frame 26. The other side of the first traction rod 29 is fixedly connected to a third traction rod 31. One end of the third traction rod 31 is rotatably mounted on the first piston 32.

[0039] Furthermore, the feeding and processing mechanism also includes a fourth traction rod 38, a first U-shaped rotating plate 36, and a second U-shaped rotating plate 37 for driving the second piston 34 to reciprocate synchronously. One end of the fourth traction rod 38 is rotatably mounted on the second piston 34, and the other end of the fourth traction rod 38 is rotatably mounted on the second U-shaped rotating plate 37. The first U-shaped rotating plate 36 is symmetrically fixedly connected to one side of the second U-shaped rotating plate 37. Both the first U-shaped rotating plate 36 and the second U-shaped rotating plate 37 are rotatably mounted on the third support plate 35. One end of the second traction rod 30 is rotatably connected to the first U-shaped rotating plate 36, and the other end of the second traction rod 30 is rotatably mounted at both ends of the first traction rod 29.

[0040] Furthermore, the feeding and processing mechanism also includes a liquid delivery pipe 46 and a liquid guide pipe 48 for liquid guiding connection. Both the liquid delivery pipe 46 and the liquid guide pipe 48 are connected to the interior of the liquid delivery cylinder 33. One end of the liquid delivery pipe 46 extends into the interior of the second processing zone 5. A first one-way valve 47 is provided on the liquid delivery pipe 46. One end of the liquid guide pipe 48 is fixedly connected to a liquid storage tank 50. The liquid storage tank 50 is installed on the equipment body 1. A second one-way valve 49 is provided on the liquid guide pipe 48.

[0041] Furthermore, the feeding and processing mechanism also includes a feeding cylinder 43 for feeding solid agents. The feeding cylinder 43 is fixedly installed on the outside of the equipment body 1. The feeding cylinder 43 is connected to the inside of the first processing area 4 through a guide pipe 44. The feeding cylinder 43 is provided with an auger blade 42 for feeding. The auger blade 42 is rotatably installed inside the feeding cylinder 43 through a feeding shaft 41. A feed pipe 45 is provided above the feeding cylinder 43. One end of the feeding shaft 41 is fixedly connected to a third connecting shaft 40. The third connecting shaft 40 is rotatably connected to a fourth connecting shaft 51 through a bevel gear pair 39. The fourth connecting shaft 51 is fixedly installed on one side of the first U-shaped rotating plate 36 and is rotatably connected to the third support plate 35.

[0042] Preferably, in this embodiment, when flocculant needs to be added, the output shaft of motor 17 rotates in the reverse direction. Under the connection of the one-way bearing 9, the worm gear 8 drives the second connecting shaft 22 on the worm wheel 21 to rotate. The second connecting shaft 22 correspondingly drives the traction column 25 on the turntable 24 to rotate continuously. Under the sliding connection with the traction frame 26, the guide rod 27 drives the third traction rod 31 on the first traction rod 29 to pull the first piston 32 to reciprocate inside the infusion cylinder 33. Simultaneously, under the traction of the second traction rod 30, the first U-shaped rotating plate 36 and the second U-shaped rotating plate 37 rotate symmetrically and are connected to... On the third support plate 35, the second piston 34 connected to one end of the fourth traction rod 38 is pulled by the second U-shaped rotating plate 37 and moves synchronously with the first piston 32. At this time, the first piston 32 and the second piston 34 move symmetrically back and forth on the infusion cylinder 33. At this time, under the one-way action of the first one-way valve 47 set on the infusion pipe 46 and the second one-way valve 49 set on the liquid guide pipe 48, that is, under the extraction action of air pressure, the liquid guide pipe 48 can complete the extraction of liquid in the storage tank 50. Then, under the pushing action of the first piston 32 and the second piston 34, it is convenient to inject the extracted liquid flocculant into the interior of the second treatment area 5 through the infusion pipe 46 for treatment. Correspondingly and synchronously, as the first U-shaped rotating plate 36 pulled by the second traction rod 30 rotates continuously, the fourth connecting shaft 51 is driven to rotate synchronously. Thus, under the connection relationship of the bevel gear pair 39, the conveying shaft 41 connected to the third connecting shaft 40 drives the auger blade 42 to rotate, thereby facilitating the injection of solid flocculant into the interior of the first treatment zone 4 through the guide pipe 44 for treatment. It should be noted that a secondary filter plate for filtration is correspondingly provided at the bottom of the interior of the second treatment zone 5, so that the filtered water can be discharged from the second drain pipe 7.

[0043] The purpose of this solid-liquid alternating addition is as follows: Since the first treatment zone 4 is a high-speed stirring zone and the second treatment zone 5 is a slow-speed stirring zone, the high-speed stirring in the first treatment zone 4 can quickly break up solid agent particles, accelerate their dissolution and dispersion, and avoid the problem of local concentrations being too high or too low due to insufficient dissolution of solid agents. Meanwhile, the slow stirring in the second treatment zone 5 can provide a stable environment for floc growth and avoid excessive stirring intensity from damaging the floc structure, thereby further improving the wastewater treatment efficiency.

[0044] This top-mounted rapid stirring method effectively breaks up solid-liquid stratification, achieving homogeneous mixing of sludge and liquid. It also accelerates the reaction rate of solid reagents, improves pretreatment effects, enhances impurity removal, and reduces the load on subsequent treatment. Furthermore, the scraper 19 above the filter plate 3 prevents untreated sludge from directly depositing at the bottom of the equipment, reducing the frequency of equipment cleaning and maintenance workload. Meanwhile, the bottom-mounted slow stirring method effectively promotes floc aggregation and formation, enhances solid-liquid separation, maintains water stability, prevents secondary floating of settled sludge, ensures the orderly progress of the solid-liquid separation process, and improves the stability of the effluent quality.

[0045] It should be noted that the components in this application are all general standard parts or parts known to those skilled in the art, which effectively solve the technical problems raised in the background art.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sludge wastewater treatment device for water conservancy projects, comprising a device body (1), wherein an inlet pipe (2) for injecting wastewater is connected to the device body (1), characterized in that, The device body (1) is provided with a filter plate (3) for layered filtration. The filter plate (3) divides the interior of the device body (1) into two areas: a first processing area (4) and a second processing area (5). It also includes: A graded stirring mechanism is installed inside the equipment body (1) for rapid stirring in the first processing zone (4) and slow stirring in the second processing zone (5). The graded stirring mechanism includes a slow stirring shaft (10) for slow stirring and a fast stirring shaft sleeve (11) for rapid stirring. The fast stirring shaft sleeve (11) is rotatably mounted on the outside of the slow stirring shaft (10). The fast stirring shaft sleeve (11) is provided with several scrapers (19) for cleaning the filter plate (3). The feeding and processing mechanism is installed on the equipment body (1) and is controlled and driven by the graded stirring mechanism. It is used to feed solid agents into the first processing zone (4) and liquid agents into the second processing zone (5). The feeding and processing mechanism includes a turntable (24) for feeding drive, a guide rod (27), a second traction rod (30) and an infusion cylinder (33). The infusion cylinder (33) is symmetrically provided with a first piston (32) and a second piston (34) for infusion connection at both ends. The guide rod (27) moves back and forth by the rotation of the turntable (24). The first piston (32) and the second piston (34) move back and forth synchronously by the traction of the second traction rod (30) and the guide rod (27).

2. The sludge and wastewater treatment equipment for water conservancy projects according to claim 1, characterized in that, The feeding and processing mechanism also includes a first traction rod (29) for driving the first piston (32) to reciprocate. The turntable (24) is rotatably mounted on the first support plate (23) via the second connecting shaft (22). The first support plate (23) is fixedly mounted on the equipment body (1). The first traction rod (29) is limited and slidably connected to the second support plate (28) via the guide rod (27). The second support plate (28) is fixedly mounted on the equipment body (1). One end of the guide rod (27) is fixedly connected to a traction frame (26). The turntable (24) is provided with a traction column (25) that is adapted to and slidably connected to the traction frame (26). The other side of the first traction rod (29) is fixedly connected to a third traction rod (31). One end of the third traction rod (31) is rotatably mounted on the first piston (32).

3. The sludge and wastewater treatment equipment for water conservancy projects according to claim 2, characterized in that, The feeding and processing mechanism also includes a fourth traction rod (38), a first U-shaped rotating plate (36), and a second U-shaped rotating plate (37) for driving the second piston (34) to move synchronously back and forth. One end of the fourth traction rod (38) is rotatably mounted on the second piston (34), and the other end of the fourth traction rod (38) is rotatably mounted on the second U-shaped rotating plate (37). The first U-shaped rotating plate (36) is symmetrically fixedly connected to one side of the second U-shaped rotating plate (37). The first U-shaped rotating plate (36) and the second U-shaped rotating plate (37) are both rotatably mounted on the third support plate (35). One end of the second traction rod (30) is rotatably connected to the first U-shaped rotating plate (36), and the other end of the second traction rod (30) is rotatably mounted at both ends of the first traction rod (29).

4. The sludge and wastewater treatment equipment for water conservancy projects according to claim 3, characterized in that, The feeding and processing mechanism also includes a liquid delivery pipe (46) and a liquid guide pipe (48) for liquid guiding connection. Both the liquid delivery pipe (46) and the liquid guide pipe (48) are connected to the inside of the liquid delivery cylinder (33). One end of the liquid delivery pipe (46) extends into the inside of the second processing area (5). A first one-way valve (47) is provided on the liquid delivery pipe (46). One end of the liquid guide pipe (48) is fixedly connected to a liquid storage tank (50). The liquid storage tank (50) is installed on the equipment body (1). A second one-way valve (49) is provided on the liquid guide pipe (48).

5. The sludge and wastewater treatment equipment for water conservancy projects according to claim 3, characterized in that, The feeding and processing mechanism also includes a feeding cylinder (43) for feeding solid agents. The feeding cylinder (43) is fixedly installed on the outside of the equipment body (1). The feeding cylinder (43) is connected to the inside of the first processing area (4) through a guide pipe (44). The feeding cylinder (43) is provided with a screw conveyor blade (42) for feeding. The screw conveyor blade (42) is rotatably installed inside the feeding cylinder (43) through a feeding shaft (41). A feed pipe (45) is provided above the feeding cylinder (43). A third connecting shaft (40) is fixedly connected to one end of the feeding shaft (41). The third connecting shaft (40) is rotatably connected to a fourth connecting shaft (51) through a bevel gear pair (39). The fourth connecting shaft (51) is fixedly installed on one side of the first U-shaped rotating plate (36) and rotatably connected to the third support plate (35).

6. The sludge and wastewater treatment equipment for water conservancy projects according to claim 1, characterized in that, The graded stirring mechanism also includes a motor (17) for driving the slow stirring shaft (10) to rotate. The slow stirring shaft (10) is rotatably mounted on the equipment body (1), and one end of the slow stirring shaft (10) is connected to one end of the worm (8) through a one-way bearing (9). The worm (8) is rotatably mounted on the equipment body (1). The worm (8) is meshed with the worm wheel (21). The worm wheel (21) is fixedly mounted on one end of the second connecting shaft (22). The slow stirring shaft (10) is rotatably connected to the output shaft of the motor (17) through a gear pair (16). The motor (17) is fixedly mounted on the equipment body (1).

7. The sludge and wastewater treatment equipment for water conservancy projects according to claim 6, characterized in that, The graded stirring mechanism also includes a first gear (12) and a second gear (13) for driving the fast stirring shaft sleeve (11) to rotate and stir rapidly. The fast stirring shaft sleeve (11) is rotatably installed inside the equipment body (1). The first gear (12) is also fixedly connected to the slow stirring shaft (10). The first gear (12) is meshed with the second gear (13). The second gear (13) is rotatably installed inside the equipment body (1) through the first connecting shaft (14). The first connecting shaft (14) is rotatably connected to the fast stirring shaft sleeve (11) through the synchronous belt (15). The diameter of the first gear (12) is much larger than that of the second gear (13).

8. The sludge and wastewater treatment equipment for water conservancy projects according to claim 7, characterized in that, The fast stirring shaft sleeve (11) is fixedly connected with a number of first stirring blades (18) for stirring, and the slow stirring shaft (10) is fixedly connected with a number of second stirring blades (20) for stirring. The equipment body (1) is provided with a first drain pipe (6) in the area of ​​the first processing zone (4), and the equipment body (1) is provided with a second drain pipe (7) in the area of ​​the second processing zone (5). Both the first drain pipe (6) and the second drain pipe (7) are provided with valves.

Images