Water supply and drainage sludge dewatering machine

Abstract

The present application relates to the technical field of sludge dewatering, and discloses a water supply and drainage sludge dewatering machine, which comprises a filter press frame, two mounting frames are fixedly installed on the filter press frame, a plurality of mounting holes in linear array distribution are formed in the mounting frames, rotating rods are rotatably installed in the mounting holes, mud blocks matched with upper filter belts are fixedly installed at the bottom of the rotating rods, gears are fixedly installed at the top of the rotating rods, racks meshed with the gears are slidably installed on the mounting frames, cams are rotatably installed at the two ends of one mounting frame, and a pre-pressing assembly is arranged on the filter press frame; the mud blocks are driven to overturn during use, the periodic rotation of sludge separation positions is realized, the areas of the filter belts subjected to pressure are uniformly distributed, the accelerated wear caused by local continuous high load is avoided, the overall service life of the filter belts is prolonged, the switching action of the mud blocks is synchronized with the movement of the filter belts, and the continuous and stable operation of the equipment is ensured.

Description

Technical Field

[0001] This invention relates to the field of sludge dewatering technology, and more particularly to a sludge dewatering machine for water supply and drainage. Background Technology

[0002] In the field of water supply and drainage engineering, sludge dewatering is a key link in sludge treatment and disposal. Its background technology development is driven by environmental protection policies, technological progress and industry demand. At present, the scale of sewage treatment in my country continues to expand, but sludge treatment has long suffered from the phenomenon of "emphasizing water and neglecting sludge". A large amount of sludge has a water content of more than 95%, and direct discharge or simple landfill can easily cause secondary pollution, such as heavy metal leaching, pathogen spread and riverbed siltation.

[0003] A search revealed that Chinese utility model patent CN215480501U discloses a sludge dewatering device, including a reaction device and a filter press chamber. The reaction device is configured to react the sludge to be treated with polyferric sulfate to form pretreated sludge. The filter press chamber is equipped with a sludge inlet, a moving device, a filter press, a pressure control device, and a sludge outlet. The sludge inlet is connected to the reaction device. The moving device is configured to move the sludge cake formed from the pretreated sludge to the filter press and move the filter media to the sludge outlet. The filter press is configured to apply pressure to the sludge cake and press out the water from the sludge cake to form the filter media. The pressure control device is configured to control the pressure applied to the sludge cake by the filter press. This sludge dewatering device can continuously dewater large quantities of sludge, improving production efficiency.

[0004] However, the aforementioned equipment and existing technologies use a sludge separation system to separate the sludge into strips during filter pressing, which facilitates subsequent filtration. However, the fixed sludge separation components cannot ensure that the sludge is evenly distributed on the filter screen. When the filter screen is reused, the probability of clogging at that location increases significantly because the sludge is concentrated in a fixed position each time, leading to a reduction in the filter's lifespan. Furthermore, the sludge clogging the filter screen often cannot be removed by spraying alone, and existing cleaning methods cannot effectively clean the sludge, thus failing to effectively improve the lifespan of the filter screen.

[0005] Therefore, it is necessary to design a sludge dewatering machine for water supply and drainage to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a sludge dewatering machine for water supply and drainage.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A sludge dewatering machine for water supply and drainage includes a filter press frame, a spray frame fixedly installed on the filter press frame, a plurality of lower pressure rollers rotatably installed on the filter press frame, a plurality of upper drive rollers rotatably installed on the filter press frame, upper filter belts fitted on the plurality of upper drive rollers, lower filter belts fitted on the plurality of lower pressure rollers, an inlet pipe provided on the filter press frame, and a diversion component provided on the filter press frame;

[0009] The diversion assembly includes two mounting brackets fixedly installed on the filter press frame. Each mounting bracket has several mounting holes arranged in a linear array. A rotating rod is rotatably installed in each mounting hole. A mud-blocking block adapted to the upper filter belt is fixedly installed at the bottom of the rotating rod. A gear is fixedly installed at the top of the rotating rod. A rack meshing with the gear is slidably installed on the mounting bracket. Cams adapted to the racks are symmetrically rotatably installed at both ends of one mounting bracket. A drive mechanism is provided on the cam.

[0010] The filter press frame is equipped with a pre-compression component.

[0011] As a preferred embodiment of the present invention, the driving mechanism includes a rotating shaft fixedly mounted on the cam, a bevel gear one fixedly mounted on one end of the rotating shaft extending out of the mounting frame, a rotating shaft rotatably mounted on the side wall of the filter press frame, a bevel gear two meshing with the bevel gear one fixedly mounted on the rotating shaft, a transmission belt one fitted on one end of the rotating shaft and the central shaft of one of the upper drive rollers extending out of the filter press frame, and a synchronous belt one fitted between the two rotating shafts.

[0012] As a preferred embodiment of the present invention, the two racks are respectively disposed at opposite ends of the two mounting brackets, and a connecting rod is fixedly installed between the two racks.

[0013] As a preferred embodiment of the present invention, the pre-compression assembly includes vertical rods symmetrically fixedly installed on the filter press frame. The vertical rods have mounting grooves, and pre-compression rollers adapted to the upper and lower filter belts are symmetrically arranged within the mounting grooves. Each pre-compression roller is fitted with an elastic cover. A transmission belt is fitted between one pre-compression roller and one lower roller, and a transmission belt is fitted between another pre-compression roller and one upper drive roller. An elastic component is provided between the elastic cover and the pre-compression roller, and an adjustment component is provided between the two pre-compression rollers.

[0014] As a preferred embodiment of the present invention, the adjusting assembly includes a lead screw rotatably installed in the mounting groove, with the threads at both ends of the lead screw having opposite directions. A slider is symmetrically slidably installed in the mounting groove, and the slider is threadedly connected to the lead screw. The slider is rotatably connected to the preload roller, and an adjusting handle is fixedly installed at one end of the lead screw extending out of the vertical rod.

[0015] As a preferred embodiment of the present invention, the elastic component includes sliding grooves arranged in a ring array on the preload roller, a support plate slidably installed in the sliding groove, one end of the support plate away from the preload roller being fixedly connected to the inner wall of the elastic cover, and a plurality of springs being fixedly installed between the support plate and the sliding groove.

[0016] As a preferred embodiment of the present invention, a vibrating roller corresponding to the upper filter belt is rotatably mounted on the filter press frame, and a plurality of protrusions are fixedly mounted on the vibrating roller. A synchronous belt is fitted between the vibrating roller and a pre-pressing roller located at the top.

[0017] As a preferred embodiment of the present invention, mounting blocks corresponding to the spray frame are symmetrically fixedly installed on the filter press frame, and mounting shafts are rotatably installed between the mounting blocks. A sleeve is slidably fitted on the mounting shaft, and brush bristles are fixedly installed on the sleeve. A transmission belt is fitted between one end of the mounting shaft extending out of the mounting block and one end of the central shaft of the upper drive roller extending out of the filter press frame. A translation mechanism is provided on the sleeve, and a limit mechanism is provided on the mounting shaft.

[0018] As a preferred embodiment of the present invention, the translation mechanism includes a fixed cam fixedly mounted on a mounting block, a movable cam adapted to the fixed cam fixedly mounted on the sleeve, and a spring slidably mounted between the other end of the sleeve and the mounting block.

[0019] As a preferred embodiment of the present invention, the limiting mechanism includes a limiting groove formed on the mounting shaft, and a fixing block that is slidably connected to the limiting groove is fixedly installed on the inner side wall of the sleeve, and the length of the limiting groove is greater than the length of the fixing block.

[0020] The present invention has the following beneficial effects:

[0021] 1. By setting cams, racks and gears, the mud baffles are intermittently driven to rotate 180° during use, realizing the periodic rotation of the sludge separation position. This ensures that the pressure-bearing area of ​​the filter belt is evenly distributed, avoiding accelerated wear caused by localized continuous high loads and extending the overall service life of the filter belt. The mud baffle switching action and the filter belt movement are mechanically linked through the transmission belt, ensuring that the separation position adjustment and the sludge conveying progress are precisely synchronized, and guaranteeing the continuous and stable operation of the equipment.

[0022] 2. By setting a lead screw, slider, and spring, the lead screw drives the synchronous movement of the two sliders to support stepless adjustment of the pre-compression roller spacing, which can adapt to fluctuations in sludge feed and changes in sludge thickness, ensuring stable pre-dewatering effect and avoiding blockage due to excessively narrow spacing or insufficient pre-compression due to excessively wide spacing. The elastic cover supported by spring one applies uniform pressure to the filter belt under normal conditions, enhancing the pre-dewatering effect. It automatically contracts when encountering large particles of sludge that cause blockage, preventing equipment jamming and ensuring system safety.

[0023] 3. By setting up protrusions and vibrating rollers, the protrusions on the surface of the vibrating rollers intermittently lift the filter belt during rotation, generating vertical vibration, which accelerates the gravity separation of free water in the sludge layer, reduces the initial moisture content, and when the vibration is transmitted to the sludge, it can improve the uniformity of sludge distribution, eliminate local excessively thick areas, and create conditions for subsequent uniform extrusion.

[0024] 4. By setting fixed cams and movable cams, the combined cleaning of rotary brushing and reciprocating motion is achieved. The rotary brushing covers the filter belt, while the horizontal reciprocating motion can thoroughly clean the gaps, improving the removal of residual mud and enhancing the cleaning effect. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the water supply and drainage sludge dewatering machine proposed in this invention;

[0026] Figure 2 This is a multi-angle structural schematic diagram of the water supply and drainage sludge dewatering machine proposed in this invention;

[0027] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0028] Figure 4 This is a partial structural schematic diagram of the water supply and drainage sludge dewatering machine proposed in this invention;

[0029] Figure 5 This is a schematic diagram of the mounting frame for the water supply and drainage sludge dewatering machine proposed in this invention;

[0030] Figure 6 for Figure 2 Enlarged structural diagram at point B;

[0031] Figure 7This is a schematic diagram of the pre-compression component of the water supply and drainage sludge dewatering machine proposed in this invention;

[0032] Figure 8 This is a partial cross-sectional view of the sludge dewatering machine for water supply and drainage proposed in this invention.

[0033] Figure 9 This is a schematic diagram of the brushing component of the water supply and drainage sludge dewatering machine proposed in this invention.

[0034] Figure 10 This is a cross-sectional structural diagram of the sleeve of the water supply and drainage sludge dewatering machine proposed in this invention.

[0035] In the diagram: 1. Filter press frame; 2. Spray frame; 21. Lower pressure roller; 22. Upper drive roller; 23. Upper filter belt; 24. Lower filter belt; 25. Inlet pipe; 3. Mounting frame; 31. Mounting hole; 32. Rotating rod; 33. Mud baffle; 34. Gear; 35. Rack; 36. Cam; 37. Synchronous belt one; 38. Connecting rod; 4. Rotating shaft; 41. Bevel gear one; 42. Bevel gear two; 43. Transmission belt one; 5. Mounting groove; 51. Lead screw; 52. Slider; 53. Preload roller; 54. Elastic cover; 55. Transmission belt two; 56. Transmission belt three; 57. Adjusting handle; 58. Sliding groove; 59. Support plate; 510. Spring one; 6. Vibrating roller; 61. Protrusion; 62. Synchronous belt two; 7. Mounting block; 71. Mounting shaft; 72. Sleeve; 73. Brush bristles; 74. Fixed cam; 75. Movable cam; 76. Spring two; 77. Transmission belt four; 78. Limiting groove; 79. Fixed block. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] Reference Figure 1-10A sludge dewatering machine for water supply and drainage includes a filter press frame 1, a spray frame 2 fixedly mounted on the filter press frame 1, several lower pressure rollers 21 rotatably mounted on the filter press frame 1, several upper drive rollers 22 rotatably mounted on the filter press frame 1, upper filter belts 23 fitted on the upper drive rollers 22, and lower filter belts 24 fitted on the several lower pressure rollers 21. An inlet pipe 25 is provided on the filter press frame 1, and a flow diversion assembly is provided on the filter press frame 1. The flow diversion assembly includes two mounting brackets 3 fixedly mounted on the filter press frame 1. The mounting frame 3 has several mounting holes 31 arranged in a linear array. A rotating rod 32 is rotatably mounted in the mounting holes 31. A mud-blocking block 33 adapted to the upper filter belt 23 is fixedly mounted at the bottom of the rotating rod 32. A gear 34 is fixedly mounted at the top of the rotating rod 32. A rack 35 meshing with the gear 34 is slidably mounted on the mounting frame 3. A cam 36 adapted to the rack 35 is symmetrically rotated at both ends of one mounting frame 3. A drive mechanism is provided on the cam 36. The filter press frame 1 is provided with a pre-compression component.

[0038] The drive mechanism includes a rotating shaft 4 fixedly mounted on a cam 36. A bevel gear 41 is fixedly mounted on one end of the rotating shaft 4 that extends out of the mounting bracket 3. A rotating shaft is rotatably mounted on the side wall of the filter press frame 1. A bevel gear 42 that meshes with the bevel gear 41 is fixedly mounted on the rotating shaft. A transmission belt 43 is fitted on one end of the rotating shaft and the central shaft of an upper drive roller 22 that extends out of the filter press frame 1. A synchronous belt 37 is fitted between the two rotating shafts 4. Two racks 35 are respectively located at opposite ends of the two mounting brackets 3. A connecting rod 38 is fixedly mounted between the two racks 35.

[0039] Sludge flows through the inlet pipe 25 to the horizontal section of the upper filter belt 23. Water flows down under gravity, and multiple mud-blocking blocks 33 separate the sludge into mud belts, which facilitates uniform filtration and dewatering in the subsequent process. This ensures that the sludge thickness between the upper and lower filter belts is consistent, making the lower roller 21 more effective at dewatering. The mud-blocking blocks 33 are located on one side of the rotating rod 32. The upper drive roller 22 drives the upper filter belt 23 to move. Through the transmission belt 43, the bevel gear rotates, which drives the rotating shaft 4 to rotate the cam 36. The two cams 36 move synchronously, alternately and intermittently pushing the rack 35, which drives the gear 34 to rotate the mud-blocking blocks 33 180° to the other side of the rotating rod 32. This changes the sludge separation position, making the upper and lower filter belts bear force evenly, improving the system lifespan, and not affecting sludge separation and subsequent dewatering. It can also adjust the separation according to the sludge transfer progress, realizing automatic intermittent position switching.

[0040] Reference Figure 6-8The pre-compression assembly includes vertical rods symmetrically fixedly mounted on the filter press frame 1. Each vertical rod has a mounting groove 5. Pre-compression rollers 53, adapted to the upper filter belt 23 and lower filter belt 24 respectively, are symmetrically arranged within the mounting groove 5. Each pre-compression roller 53 is fixedly fitted with an elastic cover 54. A transmission belt 55 is fitted between one pre-compression roller 53 and one lower roller 21, and a transmission belt 56 is fitted between the other pre-compression roller 53 and one upper drive roller 22. An elastic component is provided between the elastic cover 54 and the pre-compression roller 53. An adjustment component is provided between the two pre-compression rollers 53. The adjustment component includes components rotatably mounted on the mounting... The screw 51 is installed in the groove 5, and the threads at both ends of the screw 51 are arranged in opposite directions. A slider 52 is symmetrically slidably installed in the groove 5, and the slider 52 is threadedly connected to the screw 51. The slider 52 is rotatably connected to the preload roller 53. An adjustment handle 57 is fixedly installed at one end of the screw 51 that extends out of the vertical rod. The elastic component includes sliding grooves 58 arranged in a ring array on the preload roller 53. A support plate 59 is slidably installed in the sliding groove 58. The end of the support plate 59 away from the preload roller 53 is fixedly connected to the inner wall of the elastic cover 54. Several springs 510 are fixedly installed between the support plate 59 and the sliding groove 58.

[0041] Before the sludge covered by the upper and lower filter belts 23 and 24 enters the lower roller 21 for squeezing and dewatering, it needs to be pre-dewatered. Rotating the adjusting handle 57 drives the screw 51 to rotate, so that the two sliders 52 move synchronously relative to each other, ensuring that the two pre-pressing rollers 53 are always aligned, thus ensuring the pre-dewatering effect. Adjusting the position of the sliders 52 can change the distance between the pre-pressing rollers 53 to adapt to different sludge feed rates and avoid system blockage or poor pre-dewatering due to distance issues.

[0042] Reference Figure 7 and Figure 8 A vibrating roller 6 corresponding to the upper filter belt 23 is rotatably installed on the filter press frame 1. Several protrusions 61 are fixedly installed on the vibrating roller 6. A synchronous belt 62 is fitted between the vibrating roller 6 and a pre-pressing roller 53 located at the top.

[0043] When the pre-compression roller 53 rotates, it drives the vibrating roller 6 to rotate via the synchronous belt 62. The vibrating roller 6 has raised protrusions 61, which intermittently lift the upper filter belt 23 during rotation, causing the sludge in the horizontal section above it to vibrate. This process can accelerate the natural flow of water. At the same time, during the sludge transportation process, the vibration can make the sludge distribution more uniform, thereby improving the efficiency of subsequent extrusion and dewatering, making the entire sludge dewatering process smoother and more efficient, and helping to improve the overall effect of sludge treatment.

[0044] Reference Figure 7 and Figure 10A mounting block 7 corresponding to the spray frame 2 is symmetrically fixedly installed on the filter press frame 1. A mounting shaft 71 is rotatably installed between the mounting blocks 7. A sleeve 72 is slidably fitted on the mounting shaft 71. Brush bristles 73 are fixedly installed on the sleeve 72. A transmission belt 77 is fitted between one end of the mounting shaft 71 extending out of the mounting block 7 and one end of the central shaft of an upper drive roller 22 extending out of the filter press frame 1. A translation mechanism is provided on the sleeve 72, and a limit mechanism is provided on the mounting shaft 71. The translation mechanism includes a fixed cam 74 fixedly installed on a mounting block 7. A movable cam 75 adapted to the fixed cam 74 is fixedly installed on the sleeve 72. A spring 76 is slidably installed between the other end of the sleeve 72 and the mounting block 7. The limit mechanism includes a limit groove 78 opened on the mounting shaft 71. A fixed block 79 slidably connected to the limit groove 78 is fixedly installed on the inner side wall of the sleeve 72, and the length of the limit groove 78 is greater than the length of the fixed block 79.

[0045] Before the filter belt discharges dewatered sludge and rotates back, the spray head washes away residual sludge. At the same time, the transmission belt 77 drives the mounting shaft 71 to rotate, and the sleeve 72 rotates through the limit groove 78 and the fixing block 79, which drives the brush bristles 73 to brush the upper filter belt 23, improving the cleaning effect of sludge in the gaps. The fixed cam 74 and the movable cam 75 cooperate. When rotating, the fixed cam 74 pushes the sleeve 72 to move outward. Under the action of the spring 76, it resets, so that the brush bristles 73 move horizontally to brush when rotating, achieving more comprehensive cleaning, improving the reuse effect of the upper filter belt 23, and improving the sludge dewatering efficiency and equipment service life.

[0046] The specific working principle of this invention is as follows:

[0047] During operation, the sludge flows through the inlet pipe 25 to the horizontal section of the upper filter belt 23. At this point, the water in the sludge flows down under gravity. The sludge is separated by multiple baffle blocks 33 to form a mud belt, facilitating uniform distribution of the sludge during subsequent filter press dewatering. This ensures consistent thickness between the upper and lower filter belts 23 and 24, allowing the lower roller 21 to more effectively dewater the sludge. During the initial cycle, the baffle blocks 33 are located on one side of the rotating rod 32. As the upper drive roller 22 drives the upper filter belt 23, it moves the sludge and, simultaneously, drives the bevel gear 42 via the transmission belt 43. This, in turn, drives the meshing bevel gear 41, causing the rotating shaft 4 to rotate and the cam 36 on one side to rotate. Simultaneously, the synchronous belt 37... The two cams 36 can move synchronously. When the cams 36 rotate, the two cams 36 on both sides will alternately and intermittently contact the end of the rack 35, pushing the rack 35 to slide a certain distance along the mounting frame 3. When the rack 35 slides, it will drive the gear 34 meshing with it to rotate, thereby causing the mud baffle 33 to rotate 180° relative to the mounting frame 3, thus moving to the other side of the rotating rod 32, thereby separating the sludge into the gaps between the sludge in the front part. This means that during continuous dewatering, the position of the sludge separated relative to the upper pressure filter belt 23 is not always the same as before. This allows the part of the upper pressure filter belt 23 that bears greater pressure to rotate during the sludge squeezing and dewatering, thus making the upper pressure filter belt 23... The use of the 3 and the lower pressure filter belt 24 is more uniform, avoiding the problem that some parts are always under greater load and reach the end of their service life faster, thereby improving the overall service life of the system during sludge dewatering. At the same time, although the position of sludge separation is changed, it can still ensure that the sludge is effectively separated, so that the sludge in this part can be evenly distributed after compression, so that the subsequent dewatering process is not affected. When the upper drive roller 22 drives the upper pressure filter belt 23 to rotate, it simultaneously drives the mud baffle 33 to switch postures, which can ensure that the sludge transfer progress is adjusted synchronously during equipment operation, ensuring the stability of equipment use. The cam 36 rotates synchronously and intermittently drives the rack 35 to move, realizing the automatic intermittent switching position of the mud baffle 33.

[0048] When the upper pressure filter belt 23 and the lower pressure filter belt 24 work together to cover the sludge, pre-dewatering is required before it enters the lower pressure roller 21 for extrusion and dewatering. This compresses the sludge volume to ensure subsequent dewatering efficiency. Rotating the adjusting handle 57 drives the screw 51 to rotate, which in turn drives the two sliders 52 to move synchronously relative to each other. This ensures that the two pre-pressure rollers 53 are always centered relative to the upper pressure filter belt 23 and the lower pressure filter belt 24, guaranteeing the pre-dewatering effect. Adjusting the position of the sliders 52 allows for adjustment of the position of the two pre-pressure rollers 53. This allows for effective pre-dewatering even with different sludge feed rates and varying thicknesses between the upper and lower pressure filter belts 23 and 24, by adjusting the appropriate spacing. If the distance is too narrow, the sludge will not be able to pass smoothly through the pre-compression roller 53 after being compressed and dewatered, causing system blockage and preventing normal dewatering. At the same time, it is ensured that the sludge will not be unable to be effectively compressed and dewatered due to the distance being too wide. When the elastic cover 54 contacts the upper pressure filter belt 23 and the lower pressure filter belt 24, the support plate 59 can be pushed out under the action of the spring 510, which will drive the elastic cover 54 to open. It can also apply pressure to the upper pressure filter belt 23 and the lower pressure filter belt 24 when in contact, so as to dewater the sludge. The setting of the spring 510 can allow the support plate 59 to retract back to the sliding groove 58 when encountering large sludge blockage, so that it can pass smoothly, avoid equipment jamming, and improve the safety of equipment use.

[0049] When the pre-compression roller 53 rotates, it can drive the vibrating roller 6 to rotate through the synchronous belt 62. The vibrating roller 6 is provided with protruding protrusions 61. When rotating, it will intermittently lift the upper filter belt 23, thereby driving the sludge in the horizontal section of the upper filter belt 23 to vibrate, accelerating the natural flow of water. It also helps to make the sludge distribution more uniform through vibration during the sludge transportation process, thereby improving the efficiency of subsequent extrusion and dewatering.

[0050] After the upper and lower filter belts 23 and 24 discharge the dewatered sludge through the scraper, before the next dewatering cycle, the remaining sludge is cleaned by a spray nozzle. Simultaneously, the drive belt 77 drives the mounting shaft 71 to rotate. As the mounting shaft 71 rotates, it drives the sleeve 72 to rotate via the limiting groove 78 and the fixing block 79, which in turn drives the brush bristles 73 to brush and clean the upper filter belt 23, improving the cleaning effect on the compacted sludge in the gaps. Furthermore, through the cooperation between the fixed cam 74 and the movable cam 75, the fixed cam 74 continuously pushes the sleeve 72 outwards during rotation and continuously resets under the action of the spring 76. This allows the brush bristles 73 to move horizontally while rotating, achieving a more comprehensive cleaning effect, improving the reusability of the upper filter belt 23, increasing the efficiency of sludge dewatering, and extending the service life of the equipment.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A sludge dewatering machine for water supply and drainage, comprising a filter press frame, a spray frame fixedly mounted on the filter press frame, a plurality of lower pressure rollers rotatably mounted on the filter press frame, a plurality of upper drive rollers rotatably mounted on the filter press frame, upper filter belts fitted onto the plurality of upper drive rollers, lower filter belts fitted onto the plurality of lower pressure rollers, and a water inlet pipe provided on the filter press frame, characterized in that... A flow diversion component is provided on the filter press frame; The diversion assembly includes two mounting brackets fixedly installed on the filter press frame. Each mounting bracket has several mounting holes arranged in a linear array. A rotating rod is rotatably installed in each mounting hole. A mud-blocking block adapted to the upper filter belt is fixedly installed at the bottom of the rotating rod. A gear is fixedly installed at the top of the rotating rod. A rack meshing with the gear is slidably installed on the mounting bracket. Cams adapted to the racks are symmetrically rotatably installed at both ends of one mounting bracket. A drive mechanism is provided on the cam. The filter press frame is equipped with a pre-compression assembly; The pre-compression assembly includes vertical rods symmetrically fixedly installed on the filter press frame. The vertical rods have mounting grooves, and pre-compression rollers adapted to the upper and lower filter belts are symmetrically arranged in the mounting grooves. The pre-compression rollers are fixedly fitted with elastic covers. A transmission belt is fitted between one pre-compression roller and one lower roller, and a transmission belt is fitted between the other pre-compression roller and one upper drive roller. An elastic component is provided between the elastic cover and the pre-compression rollers, and an adjustment component is provided between the two pre-compression rollers. The adjustment assembly includes a lead screw rotatably installed in the mounting groove, with the threads at both ends of the lead screw having opposite directions. A slider is symmetrically slidably installed in the mounting groove, and the slider is threadedly connected to the lead screw. The slider is rotatably connected to the preload roller. An adjustment handle is fixedly installed at one end of the lead screw that extends out of the vertical rod.

2. The water supply and drainage sludge dewatering machine according to claim 1, characterized in that, The drive mechanism includes a rotating shaft fixedly mounted on the cam, a bevel gear one fixedly mounted on one end of the rotating shaft extending out of the mounting frame, a rotating shaft rotatably mounted on the side wall of the filter press frame, a bevel gear two fixedly mounted on the rotating shaft and meshing with the bevel gear one, a transmission belt one fitted on one end of the rotating shaft and the central shaft of one of the upper drive rollers extending out of the filter press frame, and a synchronous belt one fitted between the two rotating shafts.

3. The water supply and drainage sludge dewatering machine according to claim 2, characterized in that, The two racks are respectively disposed at opposite ends of the two mounting brackets, and a connecting rod is fixedly installed between the two racks.

4. The water supply and drainage sludge dewatering machine according to claim 3, characterized in that, The elastic component includes sliding grooves arranged in a ring array on the preload roller. A support plate is slidably installed in the sliding groove. The end of the support plate away from the preload roller is fixedly connected to the inner wall of the elastic cover. A plurality of springs are fixedly installed between the support plate and the sliding groove.

5. The water supply and drainage sludge dewatering machine according to claim 3, characterized in that, The filter press frame is rotatably mounted with a vibrating roller corresponding to the upper filter belt. Several protrusions are fixedly mounted on the vibrating roller. A timing belt is fitted between the vibrating roller and a pre-pressing roller located at the top.

6. The water supply and drainage sludge dewatering machine according to claim 1, characterized in that, The filter press frame is symmetrically fixed with mounting blocks corresponding to the spray frame. A mounting shaft is rotatably mounted between the mounting blocks. A sleeve is slidably fitted on the mounting shaft. Brush bristles are fixedly mounted on the sleeve. A transmission belt is fitted between one end of the mounting shaft extending from the mounting block and one end of the central shaft of the upper drive roller extending from the filter press frame. A translation mechanism is provided on the sleeve, and a limit mechanism is provided on the mounting shaft.

7. The water supply and drainage sludge dewatering machine according to claim 6, characterized in that, The translation mechanism includes a fixed cam fixedly mounted on a mounting block, a movable cam adapted to the fixed cam fixedly mounted on the sleeve, and a spring slidably mounted between the other end of the sleeve and the mounting block.

8. The water supply and drainage sludge dewatering machine according to claim 7, characterized in that, The limiting mechanism includes a limiting groove formed on the mounting shaft, and a fixing block that is slidably connected to the limiting groove is fixedly installed on the inner side wall of the sleeve, and the length of the limiting groove is greater than the length of the fixing block.

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