A water conservancy project sludge treatment device

Abstract

The application discloses a sludge treatment device for water conservancy projects and belongs to the technical field of water conservancy projects, which comprises a treatment cylinder and a feeding hopper arranged on the top of the treatment cylinder, a separation mechanism arranged in the treatment cylinder, a rotating mechanism arranged in the treatment cylinder and the separation mechanism arranged in the rotating mechanism. The sludge treatment device for water conservancy projects can separate the stones in the sludge in advance through the cooperation of the separation mechanism and the rotating mechanism, specifically the cooperation of the inner cylinder and the spiral blade, and the stones stuck in the arc-shaped through hole can be removed through the cleaning block. The sludge treatment device can avoid the stones in the sludge from scratching the surface of the filter membrane, does not need to frequently replace the filter membrane, reduces the maintenance cost of the device, avoids the blockage of the through hole, ensures the sludge flow and guarantees the sludge treatment capacity of the device, thereby avoiding the paralysis of the whole device caused by the blockage.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, and in particular to a sludge treatment device for water conservancy projects. Background Technology

[0002] Water conservancy projects refer to various projects such as flood control, irrigation, drainage, hydropower generation, water diversion, tidal flat management, soil and water conservation, and water resource protection. These include new construction, expansion, reconstruction, reinforcement, repair, and demolition projects, as well as their supporting and ancillary works. Water conservancy projects often require solid-liquid separation treatment of sludge.

[0003] In patent document CN113754212A, a sludge treatment device for water conservancy projects is described. The device includes a base plate with two fixed seats fixedly connected to its upper surface. A connecting cylinder is fixedly connected between the two fixed seats. A connecting shaft is movably connected to the inner wall of one side of the connecting cylinder, and a spiral blade is fixedly connected to one side of the connecting shaft. A mounting base is fixedly connected to one side of one of the fixed seats, and a motor is fixedly connected to the upper surface of the mounting base. One end of the connecting shaft passes through the connecting cylinder and is fixed to one end of the motor's output shaft. A discharge port is provided on one side of the connecting cylinder. This device, by installing a water filtration mechanism on the connecting cylinder, allows the spiral blade to rotate, moving the sludge and causing it to pass through a water filtration membrane. The water filtration membrane filters the water in the sludge, allowing wastewater to pass through the membrane and enter a collection box for collection, facilitating subsequent sludge treatment and improving the device's filtration efficiency.

[0004] However, the above-mentioned patent documents still have the following defects in practice:

[0005] While the aforementioned patent documents can separate solids and liquids in sludge carried by spiral blades using a filter membrane, stones in the sludge may scratch the surface of the filter membrane during movement. Furthermore, if only filtration devices such as bar screens are used to separate stones and sand particles from the sludge, the through holes are easily clogged during movement. This not only requires frequent replacement of the filter membrane, increasing maintenance costs, but also, if the through holes are clogged, the sludge flow is hindered, the processing capacity will be greatly reduced, and it may even lead to the paralysis of the entire device. Therefore, we propose a sludge treatment device for water conservancy projects to solve the above problems. Summary of the Invention

[0006] The main objective of this invention is to provide a sludge treatment device for water conservancy projects, which can effectively solve the above-mentioned problems.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A sludge treatment device for water conservancy projects includes a treatment cylinder and a feed hopper located at the top of the treatment cylinder. A geared motor is installed at the left end of the treatment cylinder, and two drain pipes for drainage are installed at the bottom of the treatment cylinder. A support frame for supporting the geared motor is provided on the left side of the treatment cylinder, and a sludge discharge port is opened at the bottom right side of the treatment cylinder. A discharge rack is provided at the bottom of the treatment cylinder, located directly below the discharge port. An isolation plate is installed on the inner wall of the right side of the treatment cylinder, and a separation mechanism is provided inside the treatment cylinder. A rotating mechanism is provided inside the treatment cylinder, and the separation mechanism is located inside the rotating mechanism. A roller brush mechanism is provided below the rotating mechanism, and a sludge scraping mechanism for scraping sludge from the inner wall of the treatment cylinder is provided at the upper end of the discharge port.

[0009] Preferably, the separation mechanism includes an inner cylinder, the top of which is fixedly connected to the bottom of the feed hopper. The surface of the inner cylinder is provided with a plurality of arc-shaped through holes for separating sludge and stones. The inner walls of the plurality of arc-shaped through holes are slidably connected with cleaning blocks to prevent stones from getting stuck. The plurality of arc-shaped through holes are all configured to be narrower inside and wider outside.

[0010] Preferably, the left end of the inner cylinder is fixedly connected to the inner wall of the processing cylinder, the inner wall of the processing cylinder is rotatably connected to a rotating shaft, the left end of the rotating shaft is fixedly connected to the output end of the reduction motor, a spiral blade is installed on the outer surface of the rotating shaft, two arc-shaped grooves are opened on the outer surface of the inner cylinder, and sliding plates are slidably connected to the inner walls of the two arc-shaped grooves. The ends of the two sliding plates near the axis of the inner cylinder are fixedly connected to the ends of the cleaning block on the same side away from the axis of the inner cylinder.

[0011] Preferably, the inner wall of the top of the inner cylinder has a plurality of cavities, each cavity containing an arc-shaped rod. The front and back bottoms of each cavity have circular holes that slide and connect with the outer surface of the arc-shaped rod on the same side. The diameter of each circular hole matches the diameter of the arc-shaped rod on the same side. Both ends of each arc-shaped rod are fixedly connected to the top of the cleaning block on the same side. A fixing block is fixedly connected to the inner wall of each cavity. A sliding block is fixedly connected to the outer surface of each arc-shaped rod. The outer surface of each sliding block slides and connects to the inner wall of the cavity on the same side. A spring is sleeved on the outer surface of each arc-shaped rod. The front of each spring is fixedly connected to the back of the fixing block on the same side, and the bottom of the back of each spring is fixedly connected to the top of the sliding block on the same side.

[0012] Preferably, a number of square blocks are fixedly connected to the front of the sliding plate located on the front side. The front of each of the square blocks is set as a semi-circular arc surface. The processing cylinder is provided with a number of square shells that match the positions of the square blocks. A strip block is slidably connected to the inner wall of each of the square shells. Two springs are fixedly connected to the end of each of the strip blocks away from the inner cylinder. The end of each of the springs away from the strip block is fixedly connected to the inner wall of the square shell on the same side.

[0013] Preferably, the rotating mechanism includes an outer cylinder, with circular baffles rotatably connected to the left and right outer surfaces of the outer cylinder. A second spiral blade is installed on the inner wall of the outer cylinder, and several grooves are formed on the outer surface of the second spiral blade. Each groove corresponds to a position of a square block on the same side. The outer surfaces of both circular baffles are fixedly connected to the inner wall of the processing cylinder. A circular hole is formed at the center of the circular baffle on the left side, and this hole is fixedly connected to the outer surface of the inner cylinder. The left end of the circular baffle on the right side is fixedly connected to the right end of the inner cylinder. Two discharge holes for discharging material are formed at the right end of the circular baffle on the right side. The ends of several square shells furthest from the inner cylinder are fixedly connected to the inner wall of the outer cylinder.

[0014] Preferably, two filter membranes are installed at the bottom of the outer cylinder, an external gear ring is installed on the outer surface of the right side of the outer cylinder, a rotating shaft is rotatably connected to the inner wall of the top right side of the treatment cylinder, a gear is fixedly connected to the outer surface of the rotating shaft, the bottom of the gear meshes with the top of the external gear ring, a pulley is installed on the right end of the rotating shaft and the outer surface of the rotating shaft, and a belt is connected to the outer surfaces of the two pulleys together, and a square recessed hole matching the position of the pulley is opened on the top right side of the treatment cylinder.

[0015] Preferably, the roller brush mechanism includes an external gear II, the inner wall of which is fixedly connected to the outer surface of the outer cylinder. Two rotating rods I are rotatably connected to the bottom inner wall of the treatment cylinder. Gear II is installed at the center of the outer surface of each of the two rotating rods I. The tops of the two gear II are meshed with the bottom of the external gear II. Two cleaning brushes are installed on the outer surface of each of the two rotating rods I. The outer surfaces of the four cleaning brushes are in contact with the bottom surface of the filter membrane on the same side. The bristles installed on the outer surfaces of the four cleaning brushes are all made of nylon.

[0016] Preferably, the sludge scraping mechanism includes an arc-shaped scraper, the bottom surface of which is in close contact with the inner wall of the bottom right side of the treatment cylinder. Two guide rods are slidably connected to the inner wall of the top of the arc-shaped scraper. The left ends of the two guide rods are fixedly connected to the right end of the circular baffle located on the right side. The right ends of the two guide rods are fixedly connected to the left end of the isolation plate. A connecting rod is fixedly connected to the right end of the arc-shaped scraper. The outer surface of the connecting rod is slidably connected to the inner wall of the isolation plate. A connecting plate is fixedly connected to the right end of the connecting rod.

[0017] Preferably, a rotating rod two is rotatably connected to the inner wall of the top right side of the isolation plate, a turntable is installed at the bottom of the rotating rod two, a connecting rod is fixedly connected to the bottom of the turntable, the outer surface of the bottom of the connecting rod is slidably connected to the inner wall of the connecting plate, a bevel gear one is installed at the top of the rotating rod two, a bevel gear two is installed on the outer surface of the rotating shaft, and the bottom right side of the bevel gear two is meshed with the top left side of the bevel gear one.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This invention features a separation mechanism, specifically a rotating shaft that drives a spiral blade to rotate and move the sludge. The sludge enters the outer cylinder through the arc-shaped through-hole in the inner cylinder, while stones are blocked in the inner cylinder, preventing them from scratching the filter membrane. This eliminates the need for frequent replacement of the filter membrane, reducing replacement costs and device maintenance costs, while ensuring the filtration effect of the filter membrane.

[0020] 2. This invention, through the cooperation of a separation mechanism and a rotation mechanism, specifically the cooperation between the inner cylinder and the spiral blades, can separate stones from the sludge in advance. At the same time, during the rotation of the outer cylinder, several cleaning blocks will slide in the inner wall of the corresponding arc-shaped through holes, so that the stones stuck in the arc-shaped through holes can be removed. This not only avoids the stones in the sludge from scratching the surface of the filter membrane, eliminating the need for frequent replacement of the filter membrane and reducing the maintenance cost of the device, but also avoids the through holes from being blocked, ensuring that the sludge flow is not obstructed and guaranteeing the sludge processing capacity of the device, thereby preventing the entire device from being paralyzed due to blockage.

[0021] 3. This invention, by setting up a roller brush mechanism, specifically, the rotation of the outer cylinder drives the rotation of the outer gear two, which in turn drives the rotation of the gear two and the rotating rod one, thereby driving the cleaning brush to rotate. This can prevent sludge and impurities from adhering to and accumulating on the outside of the filter membrane during water penetration, prevent the water permeability pores of the filter membrane from being blocked, and ensure that water can be smoothly discharged from the filter membrane, thereby ensuring the efficiency of solid-liquid separation. At the same time, the nylon bristles can reduce damage to the filter membrane during cleaning, and together with the separation mechanism 5, it can remove hard impurities in advance, further extending the service life of the filter membrane.

[0022] 4. This invention features a sludge scraping mechanism, specifically a rotating shaft that drives a bevel gear two to rotate. The meshing bevel gear one drives a rotating rod two and a turntable to rotate, which in turn drives an arc-shaped scraper to slide along the cylinder wall to scrape off the attached sludge. This eliminates the need for frequent manual cleaning, reduces the workload of manual cleaning, lowers the difficulty of cleaning the equipment, and avoids damage to the equipment caused by accumulated sludge and mold. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic cross-sectional view of the front of the processing cylinder of the present invention;

[0025] Figure 3 This is a schematic cross-sectional view of the left side of the inner cylinder of the present invention.

[0026] Figure 4 This is a schematic cross-sectional view of the right side of the inner cylinder of the present invention;

[0027] Figure 5 This is a schematic diagram of the overall structure of the sliding plate of the present invention;

[0028] Figure 6 This is a schematic cross-sectional view of the top of the square shell of the present invention;

[0029] Figure 7 This is a schematic diagram of the front cross-sectional structure of the outer cylinder of the present invention;

[0030] Figure 8 This is a schematic diagram of the overall structure of the cleaning brush of the present invention;

[0031] Figure 9 This is a schematic diagram of the front cross-sectional structure of the isolation plate of the present invention.

[0032] In the diagram: 1. Processing cylinder; 11. Drain pipe; 2. Feed hopper; 3. Gear motor; 31. Support frame; 4. Discharge rack; 5. Separation mechanism; 51. Inner cylinder; 52. Rotating shaft; 53. Spiral blade one; 54. Sliding plate; 541. Cleaning block; 5411. Arc-shaped through hole; 5412. Arc-shaped groove; 542. Arc-shaped rod; 543. Fixing block; 544. Sliding block; 545. Spring one; 546. Square block; 55. Square shell; 551. Strip block; 552. Spring two; 6. Rotating mechanism; 1. Outer cylinder; 62. Spiral blade II; 63. Circular baffle; 64. Filter membrane; 65. External gear ring I; 66. Rotating shaft; 661. Gear I; 662. Pulley; 663. Belt; 7. Isolation plate; 8. Roller brush mechanism; 81. Rotating rod I; 82. Gear II; 83. Cleaning brush; 84. External gear II; 9. Sludge scraping mechanism; 91. Arc-shaped scraper; 92. Guide rod; 93. Connecting rod; 94. Connecting plate; 95. Turntable; 951. Rotating rod II; 952. Bevel gear I; 953. Bevel gear II. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0034] Example 1, as Figure 1-9As shown, a sludge treatment device for water conservancy projects includes a treatment cylinder 1 and a feed hopper 2 set at the top of the treatment cylinder 1. A reduction motor 3 is installed at the left end of the treatment cylinder 1. Two drain pipes 11 for drainage are installed at the bottom of the treatment cylinder 1. A support frame 31 for supporting the reduction motor 3 is set on the left side of the treatment cylinder 1. A sludge discharge port for discharging sludge is opened at the bottom right side of the treatment cylinder 1. A discharge rack 4 is set at the bottom of the treatment cylinder 1 and is located directly below the discharge port. An isolation plate 7 is installed on the inner wall of the right side of the treatment cylinder 1. A separation mechanism 5 is set inside the treatment cylinder 1. A rotating mechanism 6 is set inside the treatment cylinder 1. The separation mechanism 5 is located inside the rotating mechanism 6. A roller brush mechanism 8 is set below the rotating mechanism 6. A sludge scraping mechanism 9 for scraping sludge from the inner wall of the treatment cylinder 1 is set at the upper end of the discharge port.

[0035] The aforementioned geared motor 3 is a device that combines a drive motor and a speed reducer. It can reduce the output speed of the drive motor, increase the torque, and adapt to the stable rotation speed required for sludge treatment.

[0036] Specifically, in order to reduce the frequency of filter membrane replacement and prevent the pores from being blocked by stones, please refer to... Figure 2 and Figure 3 In this embodiment, the separation mechanism 5 includes an inner cylinder 51. The top of the inner cylinder 51 is fixedly connected to the bottom of the feed hopper 2. The surface of the inner cylinder 51 is provided with a plurality of arc-shaped through holes 5411 for separating sludge and stones. The inner walls of the plurality of arc-shaped through holes 5411 are slidably connected with cleaning blocks 541 to prevent stones from getting stuck. The plurality of arc-shaped through holes 5411 are all configured to be narrow inside and wide outside.

[0037] Further reading Figure 3 and Figure 4 In this embodiment, the left end of the inner cylinder 51 is fixedly connected to the inner wall of the processing cylinder 1. The inner wall of the processing cylinder 1 is rotatably connected to a rotating shaft 52. The left end of the rotating shaft 52 is fixedly connected to the output end of the reduction motor 3. A spiral blade 53 is installed on the outer surface of the rotating shaft 52. Two arc-shaped grooves 5412 are opened on the outer surface of the inner cylinder 51. Sliding plates 54 are slidably connected to the inner walls of the two arc-shaped grooves 5412. The ends of the two sliding plates 54 near the axis of the inner cylinder 51 are fixedly connected to the ends of the cleaning block 541 on the same side away from the axis of the inner cylinder 51.

[0038] During implementation, when the rotating shaft 52 rotates, it will drive the spiral blade 53 to rotate. When the spiral blade 53 rotates, it will move the sludge poured into the inner wall of the inner cylinder 51 to the right. During the movement of the sludge in the inner wall of the inner cylinder 51, it will flow to the outside through the arc-shaped groove 5412 opened on its surface.

[0039] Further reading Figure 4In this embodiment, the inner wall of the top of the inner cylinder 51 has several cavities, each cavity containing an arc-shaped rod 542. The front and back bottoms of each cavity have circular holes that slide and connect with the outer surface of the arc-shaped rod 542 on the same side. The diameter of each circular hole matches the diameter of the arc-shaped rod 542 on the same side. Both ends of each arc-shaped rod 542 are fixedly connected to the top of the cleaning block 541 on the same side. A fixing block 543 is fixedly connected to the inner wall of each cavity. A sliding block 544 is fixedly connected to the outer surface of each arc-shaped rod 542. The outer surface of each sliding block 544 slides and connects to the inner wall of the cavity on the same side. A spring 545 is sleeved on the outer surface of each arc-shaped rod 542. The front of each spring 545 is fixedly connected to the back of the fixing block 543 on the same side, and the bottom of the back of each spring 545 is fixedly connected to the top of the sliding block 544 on the same side.

[0040] During implementation, while the sliding plate 54 slides on the inner wall of the corresponding arc-shaped groove 5412, it will drive the sliding plate 54 located on the back to slide on the inner wall of the corresponding arc-shaped groove 5412 through several arc-shaped rods 542. When the two sliding plates 54 slide, they will drive several cleaning blocks 541 to slide in the inner wall of the corresponding arc-shaped through hole 5411. When the arc-shaped rods 542 slide, they will drive the sliding block 544 to slide in the inner wall of the corresponding cavity, so that the stone stuck in the arc-shaped through hole 5411 can be removed.

[0041] The diameter of the aforementioned circular hole matches the diameter of the arc-shaped rod 542 to prevent silt from entering the cavity and contacting the spring 545.

[0042] Further reading Figure 4 and Figure 6 In this embodiment, a plurality of square blocks 546 are fixedly connected to the front of the sliding plate 54 located on the front. The front of each of the square blocks 546 is set as a semi-circular arc surface. The processing cylinder 1 is provided with a plurality of square shells 55 that match the positions of the square blocks 546. A strip block 551 is slidably connected to the inner wall of each of the square shells 55. Two springs 552 are fixedly connected to the end of each of the strip blocks 551 away from the inner cylinder 51. The end of each of the springs 552 away from the strip block 551 is fixedly connected to the inner wall of the square shell 55 on the same side.

[0043] During implementation, when the sliding block 544 slides, it compresses the spring 545, causing it to deform. When the sliding plate 54 on the front moves to the bottom of the arc-shaped groove 5412, the sliding plate 54 stops moving. As the outer cylinder 61 continues to rotate, the strip block 551 slides in the inner wall of the square shell 55, allowing the surface of the strip block 551 to separate from the surface of the square block 546. The deformed spring 545 pushes the sliding block 544 to slide in the corresponding cavity, allowing the two sliding plates 54 to move back to their original positions. After the strip block 551 rotates one revolution, it can drive the cleaning block 541 to slide again. By setting the separation mechanism 5 and the rotation mechanism 6, not only can the stones in the sludge be prevented from scratching the surface of the filter membrane 64, eliminating the need for frequent replacement of the filter membrane 64 and reducing the maintenance cost of the device, but it can also prevent the through holes from being blocked, ensuring that the sludge flow is not obstructed and guaranteeing the sludge processing capacity of the device. This avoids the situation where the entire device is paralyzed due to blockage.

[0044] Further reading Figure 2 and Figure 7 In this embodiment, the rotating mechanism 6 includes an outer cylinder 61. Circular baffles 63 are rotatably connected to the left and right outer surfaces of the outer cylinder 61. A second spiral blade 62 is installed on the inner wall of the outer cylinder 61. Several grooves are formed on the outer surface of the second spiral blade 62, and each groove matches the position of the square block 546 on the same side. The outer surfaces of the two circular baffles 63 are fixedly connected to the inner wall of the processing cylinder 1. A circular hole is formed at the center of the circular baffle 63 on the left side, and the circular hole is fixedly connected to the outer surface of the inner cylinder 51. The left end of the circular baffle 63 on the right side is fixedly connected to the right end of the inner cylinder 51. Two discharge holes for discharging material are formed at the right end of the circular baffle 63 on the right side. The ends of several square shells 55 away from the inner cylinder 51 are fixedly connected to the inner wall of the outer cylinder 61.

[0045] Further reading Figure 7 and Figure 9 In this embodiment, two filter membranes 64 are installed at the bottom of the outer cylinder 61. An external gear ring 65 is installed on the outer surface of the right side of the outer cylinder 61. A rotating shaft 66 is rotatably connected to the inner wall of the top right side of the treatment cylinder 1. A gear 661 is fixedly connected to the outer surface of the rotating shaft 66. The bottom of the gear 661 meshes with the top of the external gear ring 65. A pulley 662 is installed on the right end of the rotating shaft 66 and the outer surface of the rotating shaft 52. A belt 663 is connected to the outer surfaces of the two pulleys 662. A square recessed hole matching the position of the pulley 662 is opened on the top right side of the treatment cylinder 1.

[0046] Both of the above-mentioned water filtration membranes 64 are polyvinylidene fluoride (PVDF) composite membranes, specifically the PVDF-MF-0.22μm microfiltration membrane. Its characteristics include: excellent chemical stability, resisting corrosion from acids, alkalis, and organic pollutants that may be present in the sludge, and resistance to chemical degradation; high mechanical strength, able to withstand the squeezing force generated when the spiral blades push the sludge, preventing membrane structure rupture; good high-temperature resistance, capable of stable operation within the common ambient temperature range of water conservancy projects (-20℃-80℃), and strong anti-fouling ability, preventing organic impurities in the sludge from easily adhering to the membrane surface.

[0047] The surface of the filter membrane 64 is covered with numerous micron- or submicron-sized permeable pores. These pores are much smaller than the particle size of solid particles (such as silt, organic impurities, etc.) in the sludge, yet allow water molecules and a small amount of small molecule dissolved substances to pass through. When the sludge comes into contact with the surface of the filter membrane 64, the solid particles are blocked on the inner side of the membrane by the membrane's pore structure and continue to move towards the discharge port as pushed by the spiral blades 53; while the water penetrates the permeable pores, enters the treatment cylinder 1, and is finally discharged through the drain pipe 11 at the bottom, thus completing the solid-liquid separation.

[0048] The cleaning block 541 has beveled ends. When a stone falls into the inner wall of the arc-shaped through hole 5411 and gets stuck, the sliding cleaning block 541 can push the stone out of the arc-shaped through hole 5411 during the sliding process. Since the outer cylinder 61 can drive the cleaning block 541 to slide back and forth in the inner wall of the corresponding arc-shaped through hole 5411 once when it rotates one revolution, the stone can be pushed out of the arc-shaped through hole 5411 by the cleaning block 541 before it gets completely stuck.

[0049] During implementation, the rotating shaft 52 rotates, which in turn drives the belt pulley 662 located below to rotate, allowing the outer cylinder 61 to rotate within the inner walls of the two circular baffles 63. When the outer cylinder 61 rotates, it drives several square shells 55 to rotate. During the rotation of the square shells 55, the sliding connecting strip blocks 551 inside them drive several cleaning blocks 541 to slide within the inner walls of the corresponding arc-shaped through holes 5411. By setting the separation mechanism 5 and the rotating mechanism 6, not only can the stones in the sludge be prevented from scratching the surface of the filter membrane 64, eliminating the need for frequent replacement of the filter membrane 64 and reducing the maintenance cost of the device, but it can also prevent the through holes from being blocked, ensuring that the sludge flow is not obstructed and guaranteeing the sludge processing capacity of the device, thereby preventing the entire device from being paralyzed due to blockage.

[0050] Example 2: This example adds a roller brush mechanism based on Example 1.

[0051] Specifically, in order to achieve the purpose of cleaning the outlet end of the filter membrane, please refer to... Figure 7 and Figure 8In this embodiment, the roller brush mechanism 8 includes an external gear 84. The inner wall of the external gear 84 is fixedly connected to the outer surface of the outer cylinder 61. Two rotating rods 81 are rotatably connected to the bottom inner wall of the treatment cylinder 1. Gears 82 are installed at the center of the outer surface of each of the two rotating rods 81. The tops of the two gears 82 are meshed with the bottom of the external gear 84. Two cleaning brushes 83 are installed on the outer surface of each of the two rotating rods 81. The outer surfaces of the four cleaning brushes 83 are in contact with the bottom surface of the filter membrane 64 on the same side. The bristles installed on the outer surfaces of the four cleaning brushes 83 are all made of nylon.

[0052] The nylon bristles of the aforementioned cleaning brush 83 possess excellent flexibility, with an elastic modulus far lower than the hardness of the filter membrane 64. When the nylon bristles of the roller brush come into contact with the surface of the filter membrane 64, the bristles deform to a certain extent due to their flexibility, rather than maintaining rigid contact like metal bristles. This deformation significantly reduces the impact pressure of the bristles on the surface of the filter membrane 64, preventing scratches or damage to the membrane surface.

[0053] Meanwhile, nylon has excellent toughness. During the rotation cleaning process, even if the bristles have slight friction with the surface of the filter membrane or encounter tiny protrusions on the membrane surface, the bristles are not easy to break. They can maintain a continuous flexible contact state, reducing the risk of physical damage to the membrane structure.

[0054] During implementation, the rotation of the outer cylinder 61 drives the rotation of the second external gear 84. The rotation of the second external gear 84 drives the rotation of two second gears 82. The rotation of the second gear 82 drives the corresponding rotating rod 81 to rotate within the inner wall of the processing cylinder 1. The rotation of the rotating rod 81 drives the two cleaning brushes 83 to rotate. The rotation of the cleaning brushes 83 can rotate and clean the corresponding filter membrane 64 and the outer surface of the outer cylinder 61, which can prevent sludge and impurities from adhering and accumulating on the outside of the filter membrane 64 during water penetration, prevent the water permeability pores of the filter membrane 64 from being blocked, and ensure that water can be smoothly discharged from the filter membrane 64, thereby ensuring the efficiency of solid-liquid separation. At the same time, the nylon bristles can reduce damage to the filter membrane 64 during cleaning, and together with the separation mechanism 5, removes hard impurities in advance, further extending the service life of the filter membrane 64.

[0055] Example 3: This example is based on Example 1, with the addition of a mud scraping mechanism.

[0056] Specifically, in order to achieve the goal of cleaning the sludge adhering to the inner wall near the discharge outlet of the treatment tank, refer to... Figure 2 and Figure 9In this embodiment, the sludge scraping mechanism 9 includes an arc-shaped scraper 91. The bottom surface of the arc-shaped scraper 91 is in close contact with the inner wall of the bottom right side of the processing cylinder 1. Two guide rods 92 are slidably connected to the inner wall of the top of the arc-shaped scraper 91. The left ends of the two guide rods 92 are fixedly connected to the right end of the circular baffle 63 located on the right side. The right ends of the two guide rods 92 are fixedly connected to the left end of the isolation plate 7. A connecting rod 93 is fixedly connected to the right end of the arc-shaped scraper 91. The outer surface of the connecting rod 93 is slidably connected to the inner wall of the isolation plate 7. A connecting plate 94 is fixedly connected to the right end of the connecting rod 93.

[0057] Further reading Figure 9 In this embodiment, a rotating rod 951 is rotatably connected to the inner wall of the top right side of the isolation plate 7. A turntable 95 is installed at the bottom of the rotating rod 95, and a connecting rod is fixedly connected to the bottom of the turntable 95. The outer surface of the bottom of the connecting rod is slidably connected to the inner wall of the connecting plate 94. A bevel gear 952 is installed at the top of the rotating rod 951, and a bevel gear 953 is installed on the outer surface of the rotating shaft 52. The bottom right side of the bevel gear 953 meshes with the top left side of the bevel gear 952.

[0058] During implementation, the rotation of the rotating shaft 52 drives the second bevel gear 953 to rotate. Simultaneously, the rotation of the second bevel gear 953 drives the turntable 95 to rotate via the first bevel gear 952. The rotation of the turntable 95 drives the connecting rod installed at its bottom to rotate. As the connecting rod rotates, it slides within the inner wall of the connecting plate 94, allowing the connecting plate 94 to move left and right with the rotation of the connecting rod. The movement of the connecting plate 94 causes the connecting rod 93 to slide back and forth within the inner wall of the isolation plate 7. The sliding of the connecting rod 93 causes the arc-shaped scraper 91 to move back and forth on the inner wall of the bottom right side of the treatment cylinder 1. The movement of the arc-shaped scraper 91 scrapes away the sludge adhering to the inner wall of the treatment cylinder 1, allowing it to be discharged from the drain outlet. The top inner wall of the arc-shaped scraper 91 slides on the outer surface of the two connecting rods 93, making the arc-shaped scraper 91 more stable during sliding. This reduces the need for frequent manual cleaning, decreases the workload of manual cleaning, lowers the difficulty of equipment cleaning, and avoids damage to the equipment caused by accumulated sludge and mold.

[0059] The working principle of this invention is as follows: When sludge needs to be dewatered, the sludge is first poured into the separation mechanism 5 through the feed hopper 2. Then, the reduction motor 3 is started to drive the rotating shaft 52 to rotate in the inner wall of the processing cylinder 1. When the rotating shaft 52 rotates, it will drive the spiral blade 53 to rotate. When the spiral blade 53 rotates, it will drive the sludge poured into the inner wall of the inner cylinder 51 to move to the right. During the movement of the sludge in the inner wall of the inner cylinder 51, it will flow into the outer cylinder 61 through the arc-shaped groove 5412 opened on its surface.

[0060] The stones in the sludge are blocked by the arc-shaped groove 5412 inside the inner cylinder 51 and continue to move to the right. When the rotating shaft 52 rotates, it will drive the belt pulley 662 located below to rotate. When the belt pulley 662 rotates, it will drive the belt pulley 662 located above to rotate through the belt 663. When the belt pulley 662 located above rotates, it will drive the rotating shaft 66 to rotate in the inner wall of the top of the treatment cylinder 1. When the rotating shaft 66 rotates, it will drive the gear 1 661 to rotate. When the gear 1 661 rotates, it will drive the outer cylinder 61 to rotate in the inner wall of the two circular baffles 63 through the outer gear ring 1 65. When the outer cylinder 61 rotates, it will drive the spiral blade 2 62 to rotate. When the spiral blade 2 62 rotates, it can squeeze the sludge entering the outer cylinder 61 and drive it to move to the right. During the movement of the sludge, the two filter membranes 64 can filter the sludge, so that the water in the sludge can enter the treatment cylinder 1 through the filter membrane 64 and then be discharged from the drain pipe 11.

[0061] As the outer cylinder 61 rotates, it will cause several square shells 55 to rotate. During the rotation of the square shells 55, the sliding connecting strip blocks 551 inside will contact the surface of the corresponding square blocks 546. As the outer cylinder 61 continues to rotate, it will cause the sliding plate 54 on the front to slide on the inner wall of the corresponding arc-shaped groove 5412. While the sliding plate 54 is sliding, it will cause the sliding plate 54 on the back to slide on the inner wall of the corresponding arc-shaped groove 5412 through several arc rods 542. When the two sliding plates 54 slide, they will cause several cleaning blocks 541 to slide in the inner wall of the corresponding arc-shaped through hole 5411.

[0062] When the arc rod 542 slides, it will drive the sliding block 544 to slide in the corresponding cavity inner wall, so that the stone stuck in the arc through hole 5411 can be removed. When the sliding block 544 slides, it will squeeze the spring 545 to deform it. When the sliding plate 54 located on the front moves to the bottom of the arc groove 5412, the sliding plate 54 will stop moving. As the outer cylinder 61 continues to rotate, the strip block 551 will slide in the inner wall of the square shell 55, so that the surface of the strip block 551 can be separated from the surface of the square block 546.

[0063] The deformed spring 545 pushes the sliding block 544 to slide in the corresponding cavity inner wall, allowing the two sliding plates 54 to move back to their original positions. After the strip block 551 rotates once, it can drive the cleaning block 541 to slide again. By setting the separation mechanism 5 and the rotation mechanism 6, not only can the stones in the sludge be prevented from scratching the surface of the filter membrane 64, eliminating the need for frequent replacement of the filter membrane 64 and reducing the maintenance cost of the device, but it can also prevent the through holes from being blocked, ensuring that the sludge flow is not obstructed and guaranteeing the sludge processing capacity of the device, thereby avoiding the situation where the entire device is paralyzed due to blockage.

[0064] During the rotation of the second spiral blade 62, several grooves on its surface can prevent it from colliding with the square block 546 on the same side, so that the second spiral blade 62 can rotate smoothly.

[0065] As the outer cylinder 61 rotates, it drives the outer gear 84 to rotate. During the rotation of the outer gear 84, it drives the two gears 82 to rotate. When the gears 82 rotate, they drive the corresponding rotating rod 81 to rotate inside the processing cylinder 1. When the rotating rod 81 rotates, it drives the two cleaning brushes 83 to rotate. The rotation of the cleaning brushes 83 can rotate and clean the corresponding filter membrane 64 and the outer surface of the outer cylinder 61. This can prevent sludge and impurities from adhering and accumulating on the outside of the filter membrane 64 during water penetration, prevent the water permeability pores of the filter membrane 64 from being blocked, and ensure that water can be smoothly discharged from the filter membrane 64, thereby ensuring the efficiency of solid-liquid separation. At the same time, the nylon bristles can reduce damage to the filter membrane 64 during cleaning. Combined with the function of the separation mechanism 5 to remove hard impurities in advance, it further extends the service life of the filter membrane 64.

[0066] As the spiral blades 53 and 62 rotate, the sludge inside the inner cylinder 51 and outer cylinder 61 is discharged through the discharge hole on the surface of the circular baffle 63 on the right side into the inside of the right side of the treatment cylinder 1, and then discharged through the drain port to the top of the discharge rack 4. Simultaneously, the rotation of the rotating shaft 52 drives the second bevel gear 953 to rotate. The rotation of the second bevel gear 953, in turn, drives the turntable 95 to rotate via the first bevel gear 952. The rotation of the turntable 95 drives the connecting rod installed at its bottom to rotate. As the connecting rod rotates, it slides within the inner wall of the connecting plate 94, allowing the connecting plate 94 to rotate with the connecting rod. When the connecting plate 94 moves left and right, it causes the connecting rod 93 to slide back and forth within the inner wall of the isolation plate 7. When the connecting rod 93 slides, it causes the arc-shaped scraper 91 to move back and forth on the inner wall of the bottom right side of the treatment cylinder 1. When the arc-shaped scraper 91 moves, it can scrape off the sludge adhering to the inner wall of the treatment cylinder 1, allowing it to be discharged from the drain port. When the arc-shaped scraper 91 slides, its top inner wall will slide on the outer surface of the two connecting rods 93, making the arc-shaped scraper 91 more stable during sliding. It does not require frequent manual cleaning, reducing the workload of manual cleaning, lowering the difficulty of equipment cleaning, and avoiding damage to the equipment caused by accumulated sludge and mold.

[0067] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A sludge treatment device for water conservancy projects, comprising a treatment cylinder (1) and a feed hopper (2) disposed at the top of the treatment cylinder (1), wherein a geared motor (3) is installed at the left end of the treatment cylinder (1), two drain pipes (11) for draining water are installed at the bottom of the treatment cylinder (1), a support frame (31) for supporting the geared motor (3) is disposed on the left side of the treatment cylinder (1), a sludge discharge port is opened at the bottom right side of the treatment cylinder (1), a discharge rack (4) is disposed at the bottom of the treatment cylinder (1), the discharge rack (4) is located directly below the sludge discharge port, and an isolation plate (7) is installed on the inner wall of the right side of the treatment cylinder (1), characterized in that: The processing cylinder (1) is provided with a separation mechanism (5), the processing cylinder (1) is provided with a rotating mechanism (6), the separation mechanism (5) is located inside the rotating mechanism (6), the rotating mechanism (6) is provided with a roller brush mechanism (8) below the rotating mechanism (6), and the upper end of the sewage outlet is provided with a sludge scraping mechanism (9) that can scrape sludge from the inner wall of the processing cylinder (1). The separation mechanism (5) includes an inner cylinder (51), the top of which is fixedly connected to the bottom of the feed hopper (2). The surface of the inner cylinder (51) is provided with a number of arc-shaped through holes (5411) for separating sludge and stones. The inner walls of the arc-shaped through holes (5411) are slidably connected with cleaning blocks (541) to prevent stones from getting stuck. The arc-shaped through holes (5411) are all narrow inside and wide outside. The left end of the inner cylinder (51) is fixedly connected to the inner wall of the processing cylinder (1). The inner wall of the processing cylinder (1) is rotatably connected to a rotating shaft (52). The left end of the rotating shaft (52) is fixedly connected to the output end of the reduction motor (3). A spiral blade (53) is installed on the outer surface of the rotating shaft (52). Two arc-shaped grooves (5412) are opened on the outer surface of the inner cylinder (51). Sliding plates (54) are slidably connected to the inner walls of the two arc-shaped grooves (5412). The ends of the two sliding plates (54) near the axis of the inner cylinder (51) are fixedly connected to the ends of the cleaning block (541) on the same side away from the axis of the inner cylinder (51). The inner wall of the inner cylinder (51) has several cavities, each containing an arc-shaped rod (542). The bottom of the front and back sides of each cavity has circular holes that slide on the outer surface of the arc-shaped rod (542) on the same side. The diameter of each circular hole matches the diameter of the arc-shaped rod (542) on the same side. Both ends of each arc-shaped rod (542) are fixedly connected to the top of the cleaning block (541) on the same side. Fixing blocks (543) are fixedly connected to the inner walls of each cavity. Each of the arc-shaped rods (542) has a sliding block (544) fixedly connected to its outer surface. The outer surfaces of the sliding blocks (544) are slidably connected to the inner wall of the cavity on the same side. Each of the arc-shaped rods (542) has a spring (545) sleeved on its outer surface. The front of each spring (545) is fixedly connected to the back of the fixed block (543) on the same side. The bottom of the back of each spring (545) is fixedly connected to the top of the sliding block (544) on the same side.

2. The sludge treatment device for water conservancy projects according to claim 1, characterized in that: The sliding plate (54) located on the front is fixedly connected to several square blocks (546). The front of each of the square blocks (546) is set as a semi-circular arc surface. The processing cylinder (1) is provided with several square shells (55) that match the position of the square blocks (546). Each of the square shells (55) has a strip block (551) slidably connected to its inner wall. Each of the strip blocks (551) has two springs (552) fixedly connected to its end away from the inner cylinder (51). Each of the springs (552) has its end away from the strip block (551) fixedly connected to the inner wall of the square shell (55) on the same side.

3. The sludge treatment device for water conservancy projects according to claim 2, characterized in that: The rotating mechanism (6) includes an outer cylinder (61). Circular baffles (63) are rotatably connected to the left and right outer surfaces of the outer cylinder (61). Spiral blades (62) are installed on the inner wall of the outer cylinder (61). Several grooves are opened on the outer surface of the spiral blades (62). Several grooves are matched with the positions of the square blocks (546) on the same side. The outer surfaces of the two circular baffles (63) are fixedly connected to the inner wall of the processing cylinder (1). A circular hole is opened at the center of the circular baffle (63) on the left side. The circular hole is fixedly connected to the outer surface of the inner cylinder (51). The left end of the circular baffle (63) on the right side is fixedly connected to the right end of the inner cylinder (51). Two discharge holes for discharging material are opened at the right end of the circular baffle (63) on the right side. The ends of several square shells (55) away from the inner cylinder (51) are fixedly connected to the inner wall of the outer cylinder (61).

4. A sludge treatment device for water conservancy projects according to claim 3, characterized in that: Two filter membranes (64) are installed at the bottom of the outer cylinder (61). An external gear ring (65) is installed on the outer surface of the right side of the outer cylinder (61). A rotating shaft (66) is rotatably connected to the inner wall of the top right side of the treatment cylinder (1). A gear (661) is fixedly connected to the outer surface of the rotating shaft (66). The bottom of the gear (661) meshes with the top of the external gear ring (65). A pulley (662) is installed on the right end of the rotating shaft (66) and the outer surface of the rotating shaft (52). A belt (663) is connected to the outer surface of the two pulleys (662). A square recessed hole matching the position of the pulley (662) is opened on the top right side of the treatment cylinder (1).

5. A sludge treatment device for water conservancy projects according to claim 4, characterized in that: The roller brush mechanism (8) includes an external gear two (84), the inner wall of the external gear two (84) is fixedly connected to the outer surface of the outer cylinder (61), and two rotating rods one (81) are rotatably connected to the bottom inner wall of the treatment cylinder (1). Gear two (82) is installed at the center of the outer surface of the two rotating rods one (81), and the top of the two gears two (82) is meshed with the bottom of the external gear two (84). Two cleaning brushes (83) are installed on the outer surface of the two rotating rods one (81), and the outer surfaces of the four cleaning brushes (83) are in contact with the bottom surface of the filter membrane (64) on the same side. The bristles installed on the outer surfaces of the four cleaning brushes (83) are all made of nylon.

6. A sludge treatment device for water conservancy projects according to claim 3, characterized in that: The sludge scraping mechanism (9) includes an arc-shaped scraper (91). The bottom surface of the arc-shaped scraper (91) is in close contact with the inner wall of the bottom right side of the processing cylinder (1). Two guide rods (92) are slidably connected to the inner wall of the top of the arc-shaped scraper (91). The left ends of the two guide rods (92) are fixedly connected to the right end of the circular baffle (63) located on the right side. The right ends of the two guide rods (92) are fixedly connected to the left end of the isolation plate (7). A connecting rod (93) is fixedly connected to the right end of the arc-shaped scraper (91). The outer surface of the connecting rod (93) is slidably connected to the inner wall of the isolation plate (7). A connecting plate (94) is fixedly connected to the right end of the connecting rod (93).

7. A sludge treatment device for water conservancy projects according to claim 6, characterized in that: The right top inner wall of the isolation plate (7) is rotatably connected to a rotating rod (951). A turntable (95) is installed at the bottom of the rotating rod (951). A connecting rod is fixedly connected at the bottom of the turntable (95). The bottom outer surface of the connecting rod is slidably connected to the inner wall of the connecting plate (94). A bevel gear (952) is installed at the top of the rotating rod (951). A bevel gear (953) is installed on the outer surface of the rotating shaft (52). The right bottom of the bevel gear (953) meshes with the left top of the bevel gear (952).

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