Chute sludge elutriation and separation device

Abstract

The utility model relates to the field of sewer sludge treatment equipment, and discloses a sewer sludge elutriation and separation device which comprises a bottom box, a treatment hopper is arranged at the top of the bottom box, and a plurality of layers of stirring mechanisms are arranged in the treatment hopper; and the multi-layer stirring mechanism comprises a driving motor, two supporting rods and four second bevel gears, and the left side wall of the driving motor is arranged on the right side wall of the treatment hopper. Through the arrangement of the multi-layer stirring mechanism, the problems that the separation process becomes slow and longer time is needed to achieve the same separation effect can be solved, the first connecting ring is fixedly connected to the outer side of the middle of the first rotating rod, and the stirring rods fixed to the outer side of the first connecting ring and the stirring blades are arranged in a crossed mode, so that the stirring efficiency is improved. Therefore, each part in the sludge can be effectively and fully contacted with water, the elutriation uniformity and thoroughness are improved, the frequency of equipment maintenance and blockage cleaning is reduced, the reliability of the equipment is improved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of ditch sludge treatment, and in particular to a ditch sludge washing and separation device. Background Technology

[0002] Sewage sludge is formed when easily settleable substances from rainwater and sewage are deposited during pipeline transportation and gradually accumulate in the pipeline. It mainly consists of sand, gravel, slag, and a small amount of organic matter. It can be used as an auxiliary raw material for building materials and can be recycled. However, sewage sludge also accumulates a large amount of heavy metals and pathogenic microorganisms. If it is not properly treated, it will not only cause secondary pollution to the environment, but also pose a great threat to human health.

[0003] In sludge treatment, most mixing equipment uses a single stirring rod to agitate the sludge and water. During treatment, impurities in the sludge and water are difficult to mix and contact thoroughly and evenly. Particles of different sizes and densities cannot be effectively separated in the liquid environment according to principles such as gravity settling. This results in a slow separation process, requiring more time to achieve the same separation effect, or even failing to achieve effective separation standards at all. If a filtration device is lacking after agitation, the sludge solution after washing will still contain a large amount of unseparated solid impurities, which will flow out of the equipment with the sludge. This means the treated sludge will not reach the expected purity, negatively impacting subsequent sludge disposal, such as landfill or land application. Utility Model Content

[0004] The main purpose of this utility model is to provide a sludge washing and separation device for drainage ditches, which can effectively solve the problems that cause the separation process to be slow, requiring more time to achieve the same separation effect, or failing to achieve effective separation standards at all, and resulting in the treated sludge not reaching the expected purity, which will have adverse effects on subsequent sludge disposal, such as landfill or land use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sludge washing and separation device for drainage ditches, comprising a bottom box, a processing hopper at the top of the bottom box, and a multi-layer stirring mechanism inside the processing hopper;

[0006] The multi-layer stirring mechanism includes: a drive motor, two support rods, and four second bevel gears. The left side wall of the drive motor is located on the right side wall of the processing hopper. A first rotating rod is fixedly connected to the output end of the drive motor. The left end of the first rotating rod is rotatably connected to the left inner wall of the processing hopper. Support rings are fixedly connected to the outer side of the middle portion of the first rotating rod. The left and right sides of the two support rods are fixedly connected to the front and rear sides of the two support rings. Stirring blades are fixedly connected to the inner side walls of the two support rods. A first connecting ring is fixedly connected to the outer side of the middle portion of the first rotating rod. Stirring rods are fixedly connected to the outer sides of the four first connecting rings. The multiple stirring rods and stirring blades are arranged in a cross configuration. Device boxes are provided on the outer sides of both the left and right ends of the first rotating rod. First bevel gears are fixedly connected to both the left and right ends of the first rotating rod. The four second bevel gears are located on the front and rear sides inside the two device boxes. Each first bevel gear meshes with two second bevel gears.

[0007] Furthermore, the four second bevel gears are internally fixedly connected to first connecting rods, and the other ends of the four first connecting rods are rotatably connected to the inner walls of the front and rear sides of the processing bucket. Each first connecting rod is fixedly connected to a second connecting ring on its outer side, each second connecting ring is fixedly connected to a first connecting plate, and each first connecting plate is fixedly connected to an arc-shaped push plate on its other side.

[0008] Furthermore, a support frame is fixedly connected to the outer side of the processing hopper, the bottom of the support frame is fixedly connected to the top wall of the bottom box, the bottom wall of the drive motor is fixedly connected to the top of the right side wall of the support frame, a control panel is fixedly connected to the right side wall of the processing hopper, a base is fixedly connected to the bottom of the bottom box, and a feed box is fixedly connected to the top of the processing hopper.

[0009] Furthermore, a feeding box is connected to the bottom of the processing hopper, and a guide rail groove is provided inside the feeding box. A baffle is slidably connected inside the guide rail groove, and a handle is fixedly connected to the left side wall of the baffle.

[0010] Furthermore, a coarse filter plate is provided inside the bottom box. First connecting blocks are fixedly connected to both the front and rear sides of the coarse filter plate. Fixing plates are fixedly connected to the top inner wall of the bottom box. A first spring sheet is fixedly connected to the right side wall of each first connecting block and fixing plate. A fine filter plate is provided at the bottom of the coarse filter plate. Second connecting blocks are fixedly connected to both the front and rear sides of the coarse and fine filter plates. A second spring sheet is fixedly connected to the right side wall of every two upper and lower second connecting blocks.

[0011] Furthermore, semi-circular plates are fixedly connected to the front and rear sides of the top left side of the coarse filter plate, and a second connecting rod is provided inside the two semi-circular plates. A second connecting plate is fixedly connected to the right side wall of the fine filter plate, and a bidirectional motor is provided on the right side of the fine filter plate. A first discharge plate is fixedly connected to the left side wall of the coarse filter plate, and the outer side of the first discharge plate is connected through to the rear side of the left side wall of the bottom box. A second discharge plate is fixedly connected to the left side wall of the fine filter plate, and the left side of the second discharge plate is connected through to the front side of the left side wall of the bottom box.

[0012] Furthermore, the left side wall of the bidirectional motor is fixedly connected to the right side wall of the second connecting plate, and the front and rear output ends of the bidirectional motor are both fixedly connected to second rotating rods. The other ends of the two second rotating rods are both fixedly connected to eccentric wheels, and the other sides of the two eccentric wheels are rotatably connected to support rods. The left sides of the two support rods are rotatably connected to the front and rear ends of the second connecting rod.

[0013] Furthermore, a guide plate is fixedly connected to the inner bottom wall of the base box, and a sewage pipe is connected through the right side wall of the base box.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model, through its multi-layered stirring mechanism, solves the problem of slow separation processes, requiring longer times to achieve the same separation effect, or even failing to meet effective separation standards. A first connecting ring is fixedly connected to the outer side of the middle of the first rotating rod. The stirring rod and stirring blades fixed outside the first connecting ring are arranged in a crisscross pattern, ensuring more thorough and comprehensive stirring. When the first rotating rod rotates, the stirring rod and stirring blades agitate the sludge from different angles. The stirring rod can penetrate deep into the area stirred by the stirring blades, further breaking up agglomerates in the sludge. This effectively improves the contact between every part of the sludge and water, enhancing the uniformity and thoroughness of washing, reducing the frequency of equipment maintenance and cleaning blockages, and improving the reliability and service life of the equipment.

[0016] 2. By incorporating a coarse filter plate, a first spring plate, a fine filter plate, a bidirectional motor, an eccentric wheel, a first discharge plate, and a second discharge plate, the system effectively addresses the issue of treated sludge failing to achieve the expected purity, which could negatively impact subsequent sludge disposal processes such as landfill or land application. The eccentric wheel, fixed to the other end of the second rotating rod, also rotates. Due to its eccentric nature, the eccentric wheel undergoes periodic displacement changes during rotation. A support rod rotatably connected to the outer side of the eccentric wheel transmits these displacement changes. The left side of the support rod is rotatably connected to the front and rear ends of a second connecting rod, which is positioned within the semicircular plates on the front and rear sides of the top left side of the coarse filter plate. This effectively reduces the solid impurity content in the sludge, minimizing the risk of clogging the dewatering equipment's filter screen and improving the impurity removal rate.

[0017] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a sludge washing and separation device for drainage ditches proposed in this utility model;

[0019] Figure 2 This is an internal cross-sectional view of a sludge washing and separation device for drainage ditches proposed in this utility model.

[0020] Figure 3 This is a structural diagram of a multi-layer stirring mechanism for a sludge washing and separation device for drainage ditches, as proposed in this utility model.

[0021] Figure 4 This is a structural diagram of the stirring rod of a sludge washing and separation device for drainage ditches proposed in this utility model;

[0022] Figure 5 This is a structural diagram of the first bevel gear of a sludge washing and separation device for drainage ditches proposed in this utility model;

[0023] Figure 6 This is a diagram of the baffle structure of a sludge washing and separation device for drainage ditches proposed in this utility model;

[0024] Figure 7 This is a cross-sectional view of the bottom box of a sludge washing and separation device for drainage ditches proposed in this utility model;

[0025] Figure 8 This is a structural diagram of the support rod of a sludge washing and separation device for drainage ditches proposed in this utility model;

[0026] Figure 9 This is a structural diagram of the second connecting rod of a ditch sludge washing and separation device proposed in this utility model;

[0027] Figure 10This is a structural diagram of the second connecting plate of a sludge washing and separation device for drainage ditches proposed in this utility model;

[0028] Figure 11 This is a left-side structural diagram of a sludge washing and separation device for drainage ditches proposed in this utility model.

[0029] Legend:

[0030] 1. Base box; 2. Processing hopper; 3. Multi-layer stirring mechanism; 301. Drive motor; 302. First rotating rod; 303. Support ring; 304. Support rod; 305. Stirring blade; 306. First connecting ring; 307. Stirring rod; 308. Device box; 309. First bevel gear; 310. Second bevel gear; 311. First connecting rod; 312. Second connecting ring; 313. First connecting plate; 314. Arc-shaped push plate; 4. Support frame; 5. Feed box; 6. Control panel; 7. 8. Base; 9. Feed box; 10. Guide rail groove; 11. Baffle; 12. Handle; 13. Coarse filter plate; 14. First connecting block; 15. Fixing plate; 16. First spring plate; 17. Fine filter plate; 18. Second connecting block; 19. Second spring plate; 20. Semicircular plate; 21. Second connecting rod; 22. Second connecting plate; 23. Bidirectional motor; 24. Second rotating rod; 25. Eccentric wheel; 26. Support rod; 27. First discharge plate; 28. Second discharge plate; 29. ​​Guide plate; 20. Sewage pipe. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0032] like Figure 1 - Figure 5 As shown: A sludge washing and separation device for drainage ditches includes a bottom box 1, a processing hopper 2 is provided on the top of the bottom box 1, and a multi-layer stirring mechanism 3 is provided inside the processing hopper 2;

[0033] The multi-layer mixing mechanism 3 includes a drive motor 301, two support rods 304, and four second bevel gears 310. The left side wall of the drive motor 301 is located on the right side wall of the processing hopper 2, which processes sludge and other materials. A first rotating rod 302 is fixedly connected to the output end of the drive motor 301. The left end of the first rotating rod 302 is rotatably connected to the left inner wall of the processing hopper 2. The output end of the drive motor 301 drives the first rotating rod 302 to rotate inside the processing hopper 2, thereby providing a stable and balanced effect for the equipment on the outside. The first rotating rod 302 is fixedly connected to the outer side of the middle part of the first rotating rod 302 with a support ring 303. The left and right sides of the two support rods 304 are fixedly connected to the front and rear sides of the two support rings 303. The inner sidewalls of the two support rods 304 are fixedly connected with stirring plates 305. The first rotating rod 302 is connected to the support rod 304 through the support ring 303 on the outer side of the first rotating rod 302. The support rod 304 drives the stirring plates 305 to rotate. During the rotation, the stirring plates 305 can break the original accumulation state of the sludge, so that the different components in the sludge are initially mixed, and the washing process is promoted.

[0034] A first connecting ring 306 is fixedly connected to the outer side of the middle of the first rotating rod 302. A stirring rod 307 is fixedly connected to the outer side of each of the four first connecting rings 306. The multiple stirring rods 307 and the stirring plates 305 are arranged in a cross pattern. The first connecting rings 306 on the outer side of the first rotating rod 302 are connected to the stirring rods 307, which drive the stirring rods 307 to rotate and stir the sludge and sewage. At the same time, the stirring rods 307 and the stirring plates 305 are arranged in a cross pattern, so that the stirring is more thorough and comprehensive. The stirring rods 307 and the stirring plates 305 stir the sludge from different angles. The stirring rods 307 can penetrate into the area stirred by the stirring plates 305 to further break up the agglomerates in the sludge.

[0035] Both ends of the first rotating rod 302 are equipped with device boxes 308, which provide external protection for the internal devices. First bevel gears 309 are fixedly connected to both ends of the first rotating rod 302. Four second bevel gears 310 are disposed on the front and rear sides inside the two device boxes 308. Each first bevel gear 309 meshes with two second bevel gears 310. The first bevel gears 309 on both ends of the first rotating rod 302 rotate inside the device box 308, meshing with the second bevel gears 310 on the front and rear sides, thus driving the second bevel gears 310 to rotate. First connecting rods 311 are fixedly connected inside the four second bevel gears 310. The other ends of the four first connecting rods 311 are rotatably connected to the inner walls of the front and rear sides of the processing bucket 2. When the second bevel gears 310 are driven, the first connecting rods 311 inside rotate synchronously, and the other ends of the first connecting rods 311 rotate within the inner walls of the front and rear sides of the processing bucket 2, providing a stable driving effect for the external devices. Each first connecting rod 311 is fixedly connected to a second connecting ring 312 on its outer side, and each second connecting ring 312 is fixedly connected to a first connecting plate 313. Each first connecting plate 313 is fixedly connected to an arc-shaped push plate 314 on its other side. The second connecting ring 312 fixed to the outer side of the first connecting rod 311, together with the first connecting plate 313 and the arc-shaped push plate 314 connected thereto, constitute a side stirring structure. During the rotation, the arc-shaped push plate 314 pushes and stirs the sludge near the side of the treatment hopper 2, preventing the sludge from accumulating or forming dead corners near the inner wall of the treatment hopper 2, so that the sludge in the entire treatment hopper 2 can be fully stirred.

[0036] like Figure 1 - Figure 6As shown, a support frame 4 is fixedly connected to the outer side of the treatment hopper 2. The bottom of the support frame 4 is fixedly connected to the top wall of the base box 1. The treatment hopper 2 is fixed inside the support frame 4, allowing the treatment hopper 2 to be stably fixed to the top wall of the base box 1. The bottom wall of the drive motor 301 is fixedly connected to the top of the right side wall of the support frame 4. A control panel 6 is fixedly connected to the right side wall of the treatment hopper 2, through which the entire equipment is controlled. A base 7 is fixedly connected to the bottom of the base box 1. A feed box 5 is fixedly connected to the top of the treatment hopper 2, through which sludge and other materials are conveniently and accurately fed into the interior of the treatment hopper 2 for processing. The bottom of the processing hopper 2 is connected to a feeding box 8. The feeding box 8 has a guide rail groove 9 inside, and a baffle 10 is slidably connected inside the guide rail groove 9. A handle 11 is fixedly connected to the left side wall of the baffle 10. The feeding box 8 is designed to guide the mixed sludge and sewage, so that the sludge flows accurately into the bottom hopper 1. In addition, the operator can pull the handle 11 to drive the baffle 10 to slide in the guide rail groove 9 inside the feeding box 8, thereby opening the outlet of the feeding box 8, so as to achieve quantitative discharge and prevent sludge from falling to the bottom during mixing.

[0037] like Figure 1 - Figure 9 As shown, a coarse filter plate 12 is installed inside the bottom tank 1. The coarse filter plate 12 performs preliminary filtration on the sludge and sewage falling into the bottom tank 1, filtering out larger impurities and particles. First connecting blocks 13 are fixedly connected to both the front and rear sides of the coarse filter plate 12. Fixing plates 14 are fixedly connected to the top wall of the inner wall of the bottom tank 1. A first spring sheet 15 is fixedly connected to the right side wall of each first connecting block 13 and fixing plate 14. The first connecting blocks 13 fixedly connected to the front and rear sides of the coarse filter plate 12 are connected to the fixing plates 14 on the top wall of the inner wall of the bottom tank 1 through the first spring sheet 15 on the right side wall, providing a certain support for the coarse filter plate 12. Moreover, the elasticity of the first spring sheet 15 allows the coarse filter plate 12 to have a certain buffer space when subjected to external impact or vibration.

[0038] A fine filter plate 16 is provided at the bottom of the coarse filter plate 12. The front and rear sides of the coarse filter plate 12 and the fine filter plate 16 are fixedly connected to the second connecting blocks 17. The right side wall of every two upper and lower second connecting blocks 17 is fixedly connected to the second spring sheet 18. The front and rear sides of the top left side of the coarse filter plate 12 are fixedly connected to the semi-circular plates 19. The interior of the two semi-circular plates 19 is provided with the second connecting rod 20. The coarse filter plate 12 and the fine filter plate 16 are connected by the second connecting blocks 17 on the front and rear sides through the second spring sheet 18. The fine filter plate 16 can further filter the liquid after coarse filtration and intercept finer impurity particles. In addition, the semi-circular plates 19 on the top left side of the coarse filter plate 12 support the internal second connecting rod 20.

[0039] A second connecting plate 21 is fixedly connected to the right side wall of the fine filter plate 16. A bidirectional motor 22 is provided on the right side of the fine filter plate 16, and is connected to the bidirectional motor 22 through the second connecting plate 21, which also fixes the bidirectional motor 22 to the right side wall of the fine filter plate 16. A first discharge plate 26 is fixedly connected to the left side wall of the coarse filter plate 12. The outer side of the first discharge plate 26 is connected through to the rear side of the left side wall of the bottom box 1. The first discharge plate 26 is used to discharge impurities that have been initially filtered by the coarse filter plate 12 to the rear side of the bottom box 1. A second discharge plate 27 is fixedly connected to the left side wall of the fine filter plate 16. The left side of the second discharge plate 27 is connected through to the front side of the left side wall of the bottom box 1. The second discharge plate 27 is used to discharge the impurities and particles that have been finely filtered by the fine filter plate 16 to the front side of the bottom box 1.

[0040] like Figure 1 - Figure 11 As shown, the left side wall of the bidirectional motor 22 is fixedly connected to the right side wall of the second connecting plate 21. The front and rear output ends of the bidirectional motor 22 are both fixedly connected to the second rotating rods 23. The front and rear output ends of the bidirectional motor 22 drive the second rotating rods 23 to rotate. The other ends of the two second rotating rods 23 are both fixedly connected to the eccentric wheels 24. The eccentric wheels 24 fixed to the other ends of the second rotating rods 23 also rotate. During the rotation, the eccentric wheels 24 will produce periodic displacement changes due to their eccentric characteristics.

[0041] Each of the two eccentric wheels 24 has a support rod 25 rotatably connected to its other side. The left sides of each support rod 25 are rotatably connected to the front and rear ends of the second connecting rod 20. The support rods 25 are connected to the eccentric wheels 24 and fixed to the front and rear ends of the second connecting rod 20 via the other side of the support rods 25. This causes the second connecting rod 20 to oscillate within the first spring plate 15. The arrangement of the first and second spring plates 15 and 18 causes the fine filter plate 16 and coarse filter plate 12 to vibrate, thus performing vibration-based filtration of sludge and wastewater. A guide plate 28 is fixedly connected to the bottom wall of the bottom tank 1. A drain pipe 29 extends through the right side wall of the bottom tank 1. The guide plate 28 guides the filtered wastewater and sludge, allowing the wastewater to flow into the drain pipe 29 and be discharged from the bottom tank 1.

[0042] It should be noted that this utility model is a sludge washing and separation device for ditching. First, the drive motor 301, the bidirectional motor 22 and the control panel 6 are connected to an external power source to supply power to the device.

[0043] When the drive motor 301 starts, its output drives the first rotating rod 302 to rotate. The left end of the first rotating rod 302 rotates on the inner left side of the processing hopper 2, ensuring the stability of the rotation. The support ring 303, fixed to the outer side of the middle of the first rotating rod 302, rotates together with the first rotating rod 302. Under the action of the two support rods 304, the structure of the support ring 303 becomes more stable. The left and right sides of the support rods 304 are fixed to the front and rear sides of the support ring 303, and the stirring plate 305, which is fixedly connected to its inner side wall, begins to stir the sludge. During the rotation, the stirring plate 305 can break the original accumulation state of the sludge, so that the different components in the sludge are initially mixed, promoting the washing process.

[0044] A first connecting ring 306 is fixedly connected to the outer side of the middle of the first rotating rod 302. A stirring rod 307 and a stirring plate 305, fixed to the outer side of the first connecting ring 306, are arranged in a crisscross pattern, ensuring more thorough and comprehensive mixing. When the first rotating rod 302 rotates, the stirring rod 307 and the stirring plate 305 agitate the sludge from different angles. The stirring rod 307 can penetrate into the area agitated by the stirring plate 305, further breaking up agglomerates in the sludge and ensuring that impurities, moisture, and other components in the sludge can fully contact each other, improving the washing effect.

[0045] Simultaneously, the first bevel gears 309 fixed at both ends of the first rotating rod 302 rotate synchronously when the first rotating rod 302 rotates. Each first bevel gear 309 meshes with two second bevel gears 310. This bevel gear transmission method transmits power to the first connecting rod 311. The four second bevel gears 310 are located on the front and rear sides of the two device boxes 308 respectively. They drive the first connecting rod 311 to rotate. The other end of the first connecting rod 311 rotates on the inner walls of the front and rear sides of the processing hopper 2, ensuring smooth rotation. The second connecting ring 312 fixed on the outside of the first connecting rod 311, together with the first connecting plate 313 and the arc-shaped push plate 314 connected thereto, constitute the side stirring structure. During the rotation, the arc-shaped push plate 314 pushes and stirs the sludge near the side of the processing hopper 2, avoiding the accumulation of sludge near the inner wall of the processing hopper 2 or the formation of dead corners, so that the sludge in the entire processing hopper 2 can be fully stirred, further improving the uniformity and comprehensiveness of stirring, which is conducive to the separation of different density components in the sludge.

[0046] The first connecting blocks 13, which are fixedly connected to the front and rear sides of the coarse filter plate 12, are connected to the fixed plate 14 on the top wall of the inner wall of the bottom tank 1 via the first spring plate 15 on the right side wall. This provides some support for the coarse filter plate 12. Moreover, the elasticity of the first spring plate 15 allows the coarse filter plate 12 to have a certain buffer space when subjected to external impact or vibration, avoiding damage that may be caused by rigid connection. When the sludge mixture enters the bottom tank 1, larger particles of impurities are intercepted by the coarse filter plate 12, initially achieving solid-liquid separation. The filtrate continues to permeate downwards, and the fine filter plate 16 below the coarse filter plate 12 works in conjunction with the coarse filter plate 12. The second connecting blocks 17 on the front and rear sides of the coarse filter plate 12 and the fine filter plate 16 are connected via the second spring plate 18. The fine filter plate 16 can further filter the liquid after coarse filtration, intercepting even finer impurity particles.

[0047] When sludge falls onto the coarse filter plate 12, the second rotating rod 23, which is fixedly connected to the front and rear output ends of the bidirectional motor 22, begins to rotate when the motor starts. The eccentric wheel 24, fixed to the other end of the second rotating rod 23, also rotates accordingly. During rotation, the eccentric wheel 24, due to its eccentric characteristics, will produce periodic displacement changes. The support rod 25, which is rotatably connected to the outside of the eccentric wheel 24, will transmit this displacement change. The left side of the support rod 25 is rotatably connected to the front and rear ends of the second connecting rod 20, which is located in the semi-circular plates 19 on the front and rear sides of the top left side of the coarse filter plate 12. When the eccentric wheel 24 rotates, the coarse filter plate 12 will vibrate through the linkage of the support rod 25 and the second connecting rod 20. Since the coarse filter plate 12 and the fine filter plate 16 are connected by the second spring plate 18, the vibration of the coarse filter plate 12 will be transmitted to the fine filter plate 16, causing both filter plates to vibrate simultaneously. This can effectively prevent impurities from accumulating on the filter plate surface and clogging the filter holes, thereby improving filtration efficiency.

[0048] A first discharge plate 26, fixedly connected to the left side wall of the coarse filter plate 12, penetrates the rear side of the left side wall of the bottom box 1. Larger particles of impurities intercepted on the coarse filter plate 12 can be discharged through the first discharge plate 26. A second discharge plate 27, fixedly connected to the left side wall of the fine filter plate 16, penetrates the front side of the left side wall of the bottom box 1. Smaller impurities intercepted by the fine filter plate 16 are discharged through the second discharge plate 27. In addition, the guide plate 28 guides the filtered liquid to flow towards the drain pipe 29 to discharge the sludge and wastewater into the interior of the bottom wall 1.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sludge washing and separation device for drainage ditches, comprising a bottom tank (1), characterized in that: The bottom box (1) is provided with a processing hopper (2) at the top, and the processing hopper (2) is provided with a multi-layer stirring mechanism (3) inside. The multi-layer stirring mechanism (3) includes: a drive motor (301), two support rods (304), and four second bevel gears (310). The left side wall of the drive motor (301) is disposed on the right side wall of the processing hopper (2). The output end of the drive motor (301) is fixedly connected to a first rotating rod (302). The left end of the first rotating rod (302) is rotatably connected to the left inner wall of the processing hopper (2). Support rings (303) are fixedly connected to the outer side of the middle part of the first rotating rod (302). The left and right sides of the two support rods (304) are fixedly connected to the front and rear sides of the two support rings (303). The inner side walls of the two support rods (304) are fixedly connected to stirring rods. The mixing plate (305) is fixedly connected to the outer side of the middle part of the first rotating rod (302), and the outer side of the four first connecting rings (306) is fixedly connected to the stirring rod (307). The multiple stirring rods (307) and the mixing plate (305) are arranged in a cross manner. The outer side of the left and right ends of the first rotating rod (302) is provided with a device box (308). The left and right ends of the first rotating rod (302) are fixedly connected to the first bevel gear (309). The four second bevel gears (310) are arranged on the front and rear sides inside the two device boxes (308). Each first bevel gear (309) meshes with two second bevel gears (310).

2. The sludge washing and separation device for drainage ditches according to claim 1, characterized in that: The four second bevel gears (310) are internally fixedly connected to a first connecting rod (311). The other ends of the four first connecting rods (311) are rotatably connected to the inner walls of the front and rear sides of the processing bucket (2). A second connecting ring (312) is fixedly connected to the outer side of each first connecting rod (311). A first connecting plate (313) is fixedly connected to each second connecting ring (312). An arc-shaped push plate (314) is fixedly connected to the other side of each first connecting plate (313).

3. The sludge washing and separation device for drainage ditches according to claim 1, characterized in that: A support frame (4) is fixedly connected to the outside of the processing bucket (2). The bottom of the support frame (4) is fixedly connected to the top wall of the bottom box (1). The bottom wall of the drive motor (301) is fixedly connected to the top of the right side wall of the support frame (4). A control panel (6) is fixedly connected to the right side wall of the processing bucket (2). A base (7) is fixedly connected to the bottom of the bottom box (1). A feed box (5) is fixedly connected to the top of the processing bucket (2).

4. The sludge washing and separation device for drainage ditches according to claim 2, characterized in that: The bottom of the processing bucket (2) is connected to a feeding box (8), and a guide rail groove (9) is provided inside the feeding box (8). A baffle (10) is slidably connected inside the guide rail groove (9), and a handle (11) is fixedly connected to the left side wall of the baffle (10).

5. The sludge washing and separation device for drainage ditches according to claim 1, characterized in that: The bottom box (1) is provided with a coarse filter plate (12). The front and rear sides of the coarse filter plate (12) are fixedly connected with first connecting blocks (13). The top wall of the inner wall of the bottom box (1) is fixedly connected with a fixing plate (14). The right side wall of each first connecting block (13) and fixing plate (14) is fixedly connected with a first spring sheet (15). The bottom of the coarse filter plate (12) is provided with a fine filter plate (16). The front and rear sides of the coarse filter plate (12) and fine filter plate (16) are fixedly connected with second connecting blocks (17). The right side wall of each pair of upper and lower second connecting blocks (17) is fixedly connected with a second spring sheet (18).

6. The sludge washing and separation device for drainage ditches according to claim 5, characterized in that: The coarse filter plate (12) has semicircular plates (19) fixedly connected to the front and rear sides of the top left side. The two semicircular plates (19) are provided with second connecting rods (20). The fine filter plate (16) has a second connecting plate (21) fixedly connected to the right side wall. The fine filter plate (16) has a bidirectional motor (22) on the right side. The coarse filter plate (12) has a first discharge plate (26) fixedly connected to the left side wall. The outer side of the first discharge plate (26) is connected through to the rear side of the left side wall of the bottom box (1). The fine filter plate (16) has a second discharge plate (27) fixedly connected to the left side wall. The left side of the second discharge plate (27) is connected through to the front side of the left side wall of the bottom box (1).

7. The sludge washing and separation device for drainage ditches according to claim 6, characterized in that: The left side wall of the bidirectional motor (22) is fixedly connected to the right side wall of the second connecting plate (21). The front and rear output ends of the bidirectional motor (22) are both fixedly connected to the second rotating rod (23). The other end of the two second rotating rods (23) is fixedly connected to the eccentric wheel (24). The other side of the two eccentric wheels (24) is rotatably connected to the support rod (25). The left side of the two support rods (25) is rotatably connected to the front and rear ends of the second connecting rod (20).

8. The sludge washing and separation device for drainage ditches according to claim 1, characterized in that: A guide plate (28) is fixedly connected to the inner bottom wall of the bottom box (1), and a sewage pipe (29) is connected through the right side wall of the bottom box (1).

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