Water supply and drainage sludge dewatering machine

Abstract

The invention relates to the technical field of sludge dewatering, and discloses a water supply and drainage sludge dewatering machine which comprises a filter pressing rack, two mounting frames are fixedly mounted on the filter pressing rack, a plurality of mounting holes distributed in a linear array are formed in the mounting frames, rotating rods are rotatably mounted in the mounting holes, and the rotating rods are connected with the filter pressing rack. A mud blocking block matched with the upper filter pressing belt is fixedly mounted at the bottom of the rotating rod, a gear is fixedly mounted at the top of the rotating rod, a rack meshed with the gear is mounted on the mounting frame in a sliding manner, cams are symmetrically and rotationally mounted at the two ends of one mounting frame, and a pre-pressing assembly is arranged on the filter pressing rack; the mud blocking block is driven to turn over during use, so that periodic alternation of sludge separation positions is realized, areas, bearing pressure, of the filter pressing belt are uniformly distributed, abrasion acceleration caused by local continuous high load is avoided, the overall service life of the filter pressing belt is prolonged, the switching action of the mud blocking block is synchronous with the movement of the filter pressing belt, and continuous and stable operation of equipment is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of sludge dehydration, in particular to a water supply and drainage sludge dehydrator. Background Art

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

[0003] A search revealed a Chinese utility model patent with publication number CN215480501U, which discloses a sludge dewatering device comprising a reaction unit and a filter press chamber. The reaction unit is configured to react 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 device, a pressure control device, and a sludge outlet. The sludge inlet is connected to the reaction unit. The moving device is configured to move a sludge cake formed from the pretreated sludge to the filter press device and to move the filter press material to the sludge outlet. The filter press device is configured to apply pressure to the sludge cake and squeeze out water from the sludge cake to form a filter press material. The pressure control device is configured to control the pressure applied by the filter press device to the sludge cake. This sludge dewatering device can continuously dewater large amounts of sludge, improving production efficiency.

[0004] However, the above-mentioned equipment and the existing technology use a mud separation system to separate the sewage during filtration, and divide the sludge into strips to facilitate subsequent filtration. However, the fixed mud separation component cannot ensure that the sludge is evenly distributed on the filter press. When the filter press is reused, the sludge is concentrated at a fixed position for filtration each time, which greatly increases the probability of clogging at that position and reduces the filtration life. Moreover, the mud residue clogging the filter press often cannot be removed by spraying alone. The existing cleaning method cannot effectively clean the mud residue and cannot effectively increase the service life of the filter press.

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

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a water supply and drainage sludge dewatering machine.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: The water supply and drainage sludge dewatering machine comprises a filter press frame, a spray frame is fixedly mounted on the filter press frame, a plurality of lower pressure rollers are rotatably mounted on the filter press frame, a plurality of upper drive rollers are rotatably mounted on the filter press frame, upper filter press belts are sleeved on a plurality of upper drive rollers, lower filter press belts are sleeved on a plurality of lower pressure rollers, a water inlet pipe is arranged on the filter press frame, and a diversion assembly is arranged on the filter press frame; The diversion assembly includes two mounting brackets fixedly mounted on the filter press frame, the mounting brackets are provided with a plurality of mounting holes distributed in a linear array, a rotating rod is rotatably mounted in the mounting hole, a mud block adapted to the upper filter press belt is fixedly mounted at the bottom of the rotating rod, a gear is fixedly mounted on the top of the rotating rod, a rack meshing with the gear is slidably mounted on the mounting bracket, a cam adapted to the rack is symmetrically rotatably mounted at both ends of one of the mounting brackets, and a driving mechanism is provided on the cam; Wherein, a pre-pressing component is provided on the filter press frame.

[0008] As a preferred technical solution of the present invention, the driving mechanism includes a rotating shaft fixedly mounted on the cam, one end of the rotating shaft extending from the mounting frame is fixedly mounted with a bevel gear 1, a rotating shaft is rotatably mounted on the side wall of the filter press frame, a bevel gear 2 is fixedly mounted on the rotating shaft and meshes with the bevel gear 1, a transmission belt 1 is set on the end of the rotating shaft and the central shaft on the upper drive roller extending from the filter press frame, and a synchronous belt 1 is set between the two rotating shafts.

[0009] As a preferred technical solution of the present invention, the two racks are respectively arranged at opposite ends of the two mounting frames, and a connecting rod is fixedly installed between the two racks.

[0010] As a preferred technical solution of the present invention, the pre-pressing assembly includes a vertical rod symmetrically fixedly installed on the filter press frame, an installation groove is opened on the vertical rod, and pre-pressing rollers respectively adapted to the upper filter press belt and the lower filter press belt are symmetrically arranged in the installation groove, the pre-pressing rollers are fixedly sheathed with an elastic cover, a transmission belt 2 is sheathed between one of the pre-pressing rollers and one of the lower pressure rollers, a transmission belt 3 is sheathed between the other pre-pressing roller and one of the upper drive rollers, an elastic component is arranged between the elastic cover and the pre-pressing roller, and an adjustment component is arranged between the two pre-pressing rollers.

[0011] As a preferred technical solution of the present invention, the adjustment assembly includes a screw rod rotatably installed in the mounting groove, and the threads at both ends of the screw rod are arranged in opposite directions, a slider is symmetrically slidably installed in the mounting groove, and the slider is threadedly connected to the screw rod, the slider is rotatably connected to the pre-pressure roller, and the end of the screw rod extending out of the vertical rod is fixedly installed with an adjustment handle.

[0012] As a preferred technical solution of the present invention, the elastic component includes a sliding groove arranged in an annular array on the pre-pressing roller, a support plate is slidably installed in the sliding groove, the end of the support plate away from the pre-pressing roller is fixedly connected to the inner wall of the elastic cover, and a plurality of springs are fixedly installed between the support plate and the sliding groove.

[0013] As a preferred technical solution of the present invention, a vibrating roller corresponding to the upper filter press belt is rotatably installed on the filter press frame, a plurality of protrusions are fixedly installed on the vibrating roller, and a synchronous belt 2 is installed between the vibrating roller and the pre-pressing roller located at the top.

[0014] As a preferred technical solution of the present invention, mounting blocks corresponding to the spray rack are symmetrically fixedly installed on the filter press frame, a mounting shaft is rotatably installed between the mounting blocks, a sleeve is slidably sleeved on the mounting shaft, a brush is fixedly mounted on the sleeve, a transmission belt 4 is sleeved between one end of the mounting shaft extending from the mounting block and one end of the central axis of one of the upper drive rollers extending from the filter press frame, a translation mechanism is provided on the sleeve, and a limiting mechanism is provided on the mounting shaft.

[0015] As a preferred technical solution of the present invention, the translation mechanism includes a fixed cam fixedly mounted on one of the mounting blocks, a movable cam adapted to the fixed cam fixedly mounted on the sleeve, and a spring 2 is slidably mounted between the other end of the sleeve and the mounting block.

[0016] As a preferred technical solution of the present invention, the limiting mechanism includes a limiting groove opened on the mounting shaft, and a fixed block slidingly 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 fixed block.

[0017] The present invention has the following beneficial effects: 1. By setting up cams, racks and gears, the mud block is intermittently driven to flip 180 degrees during use, realizing the periodic rotation of the sludge separation position, so that the area where the filter press belt bears pressure is evenly distributed, avoiding accelerated wear caused by local continuous high load, and extending the overall service life of the filter press belt. The switching action of the mud block and the movement of the filter press belt are mechanically linked through the transmission belt to ensure that the separation position adjustment is accurately synchronized with the sludge conveying progress, ensuring continuous and stable operation of the equipment; 2. By setting a screw, a slider and a spring, the screw drives the synchronous movement of the two sliders to support stepless adjustment of the pre-pressing roller spacing, which can adapt to the fluctuation of the sludge inflow and the change of sludge thickness, ensuring the stability of the pre-dehydration effect, avoiding blockage caused by too narrow a spacing or insufficient pre-compression caused by too wide a spacing. The elastic cover supported by the spring applies uniform pressure to the filter press belt under normal conditions, enhancing the pre-dehydration effect. It automatically contracts when blocked by large particles of sludge, preventing the equipment from being stuck and ensuring the safety of the system. 3. By setting the convex blocks and vibrating rollers, the convex blocks on the surface of the vibrating roller intermittently lift the filter press belt during rotation, generating vertical vibration, accelerating the gravity separation of free water in the sludge layer, reducing the initial moisture content, and when the vibration is transmitted to the sludge, it can improve the uniformity of sludge distribution, eliminate local over-thick areas, and create conditions for subsequent uniform extrusion; 4. By setting fixed cam and movable cam, rotary brushing and reciprocating motion composite cleaning, rotary brushing covers the filter press belt, and horizontal reciprocating motion can fully clean the gaps, improve the removal effect of residual sludge and improve the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the water supply and drainage sludge dewatering machine proposed by the present invention; Figure 2 This is a multi-angle structural schematic diagram of the water supply and drainage sludge dewatering machine proposed by the present invention; Figure 3 for Figure 2 Schematic diagram of the enlarged structure at A in the middle; Figure 4 This is a schematic diagram of the partial structure of the water supply and drainage sludge dewatering machine proposed by the present invention; Figure 5 This is a schematic structural diagram of the mounting frame of the water supply and drainage sludge dewatering machine proposed by the present invention; Figure 6 for Figure 2 Schematic diagram of the enlarged structure at B in the middle; Figure 7 This is a schematic structural diagram of the pre-pressing assembly of the water supply and drainage sludge dewatering machine proposed by the present invention; Figure 8 This is a partial cross-sectional structural diagram of the water supply and drainage sludge dewatering machine proposed by the present invention; Figure 9 This is a schematic structural diagram of the scrubbing assembly of the water supply and drainage sludge dewatering machine proposed by the present invention; Figure 10 This is a schematic cross-sectional structural diagram of the sleeve of the water supply and drainage sludge dewatering machine proposed in the present invention.

[0019] Figure: 1. Filter press frame; 2. Spray frame; 21. Lower pressure roller; 22. Upper drive roller; 23. Upper filter press belt; 24. Lower filter press belt; 25. Water inlet pipe; 3. Mounting frame; 31. Mounting hole; 32. Rotating rod; 33. Mud stop; 34. Gear; 35. Rack; 36. Cam; 37. Timing belt 1; 38. Connecting rod; 4. Rotating shaft; 41. Bevel gear 1; 42. Bevel gear 2; 43. Drive belt 1; 5. Mounting slot; 51. Screw rod. 52. Slider; 53. Pre-pressing roller; 54. Elastic cover; 55. Transmission belt 2; 56. Transmission belt 3; 57. Adjustment handle; 58. Sliding groove; 59. Support plate; 510. Spring 1; 6. Vibrating roller; 61. Bump; 62. Synchronous belt 2; 7. Mounting block; 71. Mounting shaft; 72. Sleeve; 73. Bristles; 74. Fixed cam; 75. Movable cam; 76. Spring 2; 77. Transmission belt 4; 78. Limiting groove; 79. Fixed block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-10 The water supply and drainage sludge dewatering machine includes a filter press frame 1, a spray frame 2 is fixedly installed on the filter press frame 1, a plurality of lower pressure rollers 21 are rotatably installed on the filter press frame 1, a plurality of upper drive rollers 22 are rotatably installed on the filter press frame 1, an upper filter press belt 23 is mounted on the plurality of upper drive rollers 22, a plurality of lower filter press belts 24 are mounted on the plurality of lower pressure rollers 21, a water inlet pipe 25 is provided on the filter press frame 1, and a diversion component is provided on the filter press frame 1; wherein the diversion component includes two mounting frames 3 fixedly installed on the filter press frame 1, The mounting frame 3 is provided with a plurality of mounting holes 31 distributed in a linear array. A rotating rod 32 is rotatably mounted in the mounting hole 31. A mud block 33 adapted to the upper filter press belt 23 is fixedly mounted at the bottom of the rotating rod 32. A gear 34 is fixedly mounted on the top of the rotating rod 32. A rack 35 meshing with the gear 34 is slidably mounted on the mounting frame 3. Cams 36 adapted to the rack 35 are symmetrically rotatably mounted at both ends of each mounting frame 3. A driving mechanism is provided on the cam 36. A pre-pressing assembly is provided on the filter press frame 1. The driving mechanism includes a rotating shaft 4 fixedly mounted on a cam 36. One end of the rotating shaft 4 extending from the mounting frame 3 is fixedly mounted with a bevel gear 41. A rotating shaft is rotatably mounted on the side wall of the filter press frame 1. A bevel gear 2 42 is fixedly mounted on the rotating shaft and meshes with the bevel gear 41. A transmission belt 43 is mounted on the end of the rotating shaft and the center axis of an upper drive roller 22 extending from the filter press frame 1. A synchronous belt 37 is mounted between the two rotating shafts 4. Two racks 35 are respectively provided at opposite ends of the two mounting frames 3. A connecting rod 38 is fixedly mounted between the two racks 35. The sludge flows to the horizontal section of the upper filter press belt 23 through the water inlet pipe 25, and the water flows down under the action of gravity. The multiple mud blocks 33 separate the sludge into mud belts, which is conducive to subsequent uniform filtration and dehydration, so that the sludge thickness between the upper and lower filter press belts is consistent, and the dehydration of the lower pressure roller 21 is more effective. The mud block 33 is located on one side of the rotating rod 32, and the upper drive roller 22 drives the upper filter press belt 23 to move, and drives the bevel gear to rotate through the transmission belt 43, driving the rotating shaft 4 to rotate the cam 36. The two cams 36 move synchronously, and intermittently push the rack 35 in turn, driving the gear 34 to rotate the mud block 33 180° to the other side of the rotating rod 32, changing the sludge separation position, making the upper and lower filter press belts evenly stressed, and improving the system life without affecting the sludge separation and subsequent dehydration. It can also synchronize the sludge transfer progress to adjust the separation and realize automatic intermittent switching of positions.

[0022] Reference Figure 6-8 The pre-pressing assembly includes a vertical rod symmetrically fixedly mounted on the filter press frame 1, and a mounting groove 5 is opened on the vertical rod. Pre-pressing rollers 53 that are respectively adapted to the upper filter press belt 23 and the lower filter press belt 24 are symmetrically arranged in the mounting groove 5. The pre-pressing rollers 53 are fixedly sheathed with an elastic cover 54. A transmission belt 2 55 is sheathed between one pre-pressing roller 53 and a lower pressure roller 21, and a transmission belt 3 56 is sheathed between the other pre-pressing roller 53 and an upper drive roller 22. An elastic component is arranged between the elastic cover 54 and the pre-pressing roller 53, and an adjustment component is arranged between the two pre-pressing rollers 53; the adjustment component includes a rotatable member mounted on the mounting The screw rod 51 is in the groove 5, and the threads at both ends of the screw rod 51 are arranged in opposite directions. A slider 52 is symmetrically slidably installed in the installation groove 5, and the slider 52 is threadedly connected to the screw rod 51. The slider 52 is rotatably connected to the pre-pressing roller 53. An adjustment handle 57 is fixedly installed on the end of the screw rod 51 extending from the vertical rod; the elastic component includes a sliding groove 58 arranged in an annular array on the pre-pressing roller 53, and a support plate 59 is slidably installed in the sliding groove 58. The end of the support plate 59 away from the pre-pressing roller 53 is fixedly connected to the inner wall of the elastic cover 54, and a plurality of springs 510 are fixedly installed between the support plate 59 and the sliding groove 58; The upper filter press belt 23 and the lower filter press belt 24 cover the sludge and need to be pre-dehydrated before entering the lower pressure roller 21 for extrusion and dehydration. Turn the adjustment handle 57 to drive 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 to ensure the pre-dehydration effect. Adjusting the position of the slider 52 can change the spacing between the pre-pressing rollers 53 to adapt to different sludge intake amounts and avoid system blockage or poor pre-dehydration due to distance problems.

[0023] Reference Figure 7 and Figure 8 A vibration roller 6 corresponding to the upper filter press belt 23 is rotatably mounted on the filter press frame 1, and a plurality of protrusions 61 are fixedly mounted on the vibration roller 6. A synchronous belt 2 62 is set between the vibration roller 6 and a pre-pressing roller 53 located at the top; When the pre-pressing roller 53 rotates, the vibration roller 6 is driven to rotate through the synchronous belt 2 62. The vibration roller 6 has a raised bump 61, which will intermittently lift the upper filter press belt 23 during rotation, driving the horizontal section of sludge on it to vibrate. This process can accelerate the natural flow of water. At the same time, during the sludge transportation process, the vibration effect can make the sludge more evenly distributed, thereby improving the efficiency of subsequent extrusion dehydration, making the entire sludge dehydration process smoother and more efficient, and helping to improve the overall effect of sludge treatment.

[0024] Reference Figure 7 and Figure 10 , the filter press frame 1 is symmetrically fixed with a mounting block 7 corresponding to the spray frame 2, and a mounting shaft 71 is rotatably mounted between the mounting blocks 7, and a sleeve 72 is slidably mounted on the mounting shaft 71. A brush 73 is fixedly mounted on the sleeve 72. A transmission belt 77 is mounted between one end of the mounting shaft 71 extending out of the mounting block 7 and the end of the central axis 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 limiting mechanism is provided on the mounting shaft 71; the translation mechanism includes a fixed cam 74 fixedly mounted on a mounting block 7, a movable cam 75 adapted to the fixed cam 74 is fixedly mounted on the sleeve 72, and a spring 26 is slidably mounted between the other end of the sleeve 72 and the mounting block 7; the limiting mechanism includes a limiting groove 78 provided on the mounting shaft 71, and a fixed block 79 slidably connected to the limiting groove 78 is fixedly mounted on the inner side wall of the sleeve 72, and the length of the limiting groove 78 is greater than the length of the fixed block 79; Before the filter press belt discharges the dewatered sludge and rotates, the spray head flushes the residual mud. At the same time, the transmission belt four 77 drives the installation shaft 71 to rotate, and the sleeve 72 is rotated through the limit groove 78 and the fixed block 79, driving the bristles 73 to brush the upper filter press belt 23, thereby improving the cleaning effect of the mud residue 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, and resets under the action of the spring two 76, so that the bristles 73 move horizontally to brush when rotating, achieving more comprehensive cleaning, improving the reuse effect of the upper filter press belt 23, and improving the sludge dewatering efficiency and equipment service life.

[0025] The specific working principle of the present invention is as follows: During use, the sludge flows through the water inlet pipe 25 to the horizontal section on the upper filter press belt 23. At this time, the water in the sludge can flow down under the action of gravity, and the sludge can be separated by multiple mud blocks 33 to form a mud belt, which is convenient for subsequent filter pressing and dehydration. The sludge can be evenly distributed, so that the thickness between the upper filter press belt 23 and the lower filter press belt 24 is consistent, so that the lower pressure roller 21 can dehydrate the sludge more effectively. During the initial cycle, the mud block 33 is located on one side of the rotating rod 32. As the upper driving roller 22 drives the movement of the upper filter press belt 23, while driving the movement of the sludge, the transmission belt 1 43 drives the bevel gear 2 42 to rotate, and then drives the bevel gear 1 41 meshing with it to rotate, drives the rotating shaft 4 to rotate, drives the cam 36 on one side to rotate, and at the same time, through the synchronous belt 1 37 The two cams 36 can move synchronously. When the cams 36 rotate, the cams 36 on both sides will contact the ends of the racks 35 in turn and intermittently, and push the racks 35 to slide a certain distance along the mounting frame 3. When the racks 35 slide, they will drive the gear 34 meshing with it to rotate, thereby causing the mud block 33 to rotate 180 degrees relative to the mounting frame 3, thereby moving to the other side of the rotating rod 32, thereby separating the sludge to the gap between the front part of the sludge, so that during the continuous cycle of dehydration, the position of the sludge separated each time is not always the same relative to the upper filter belt 23, so that when the sludge is squeezed and dehydrated, the part of the upper filter belt 23 that is subjected to greater pressure is rotated, so that the upper filter belt 23 3 and the lower filter press belt 24 are used more evenly, avoiding the problem that some positions are always loaded with a larger load and reach their service life faster, thereby improving the overall service life of the system during sludge dewatering. At the same time, although the position of the sludge separation is changed, the sludge can be effectively separated, thereby ensuring that the sludge in this part can also be evenly distributed after extrusion, so that the subsequent dewatering process is not affected. When the upper filter press belt 23 is driven to rotate by the upper driving roller 22, the mud block 33 is driven to switch its posture synchronously, which can ensure that the sludge transfer progress is synchronized with the separation adjustment during the operation of the equipment, ensuring the stability of the equipment. The rack 35 is pushed to move intermittently by the synchronous rotation of the cam 36, so that the mud block 33 can automatically and intermittently switch its position; When the upper filter press belt 23 and the lower filter press belt 24 cooperate to cover the sludge, pre-dehydration is required to compress the sludge volume before entering the lower pressure roller 21 for extrusion and dehydration, so as to ensure the subsequent dehydration efficiency. By turning the adjustment handle 57, the screw rod 51 is driven to rotate, and then the two sliders 52 are driven to move synchronously relative to each other, ensuring that the two pre-pressing rollers 53 are always aligned with the upper filter press belt 23 and the lower filter press belt 24 to ensure the pre-dehydration effect. By adjusting the position of the slider 52, the position of the two pre-pressing rollers 53 can be adjusted. When there are different thicknesses between the upper filter press belt 23 and the lower filter press belt 24 according to different sludge inflow amounts, effective pre-dehydration effect can be achieved by adjusting the appropriate spacing, and it is not Because the distance is too narrow, the sludge cannot pass through the pre-pressing roller 53 smoothly after being compressed and dehydrated, causing the system to be blocked and unable to dehydrate normally. At the same time, it is ensured that the sludge cannot be effectively compressed and dehydrated due to the distance being too wide. When the elastic cover 54 contacts the upper filter press belt 23 and the lower filter press belt 24, the support plate 59 can be pushed out under the action of the spring 1 510, driving the elastic cover 54 to open, and can apply pressure to the upper filter press belt 23 and the lower filter press belt 24 when contacting them, so that the sludge is dehydrated. The setting of the spring 1 510 can enable the support plate 59 to retract into the sliding groove 58 when encountering large sludge obstruction, allowing it to pass smoothly, avoiding the equipment from getting stuck, and improving the safety of the equipment when in use; When the pre-pressing roller 53 rotates, the vibration roller 6 can be driven to rotate through the synchronous belt 2 62. The vibration roller 6 is provided with a raised bump 61, which intermittently lifts the upper filter press belt 23 during rotation, thereby driving the sludge on the horizontal section of the upper filter press belt 23 to vibrate, accelerating the natural flow of water, and also helping to make the sludge more evenly distributed through the vibration during the sludge transportation process, thereby improving the efficiency of subsequent extrusion dehydration; After the upper filter press belt 23 and the lower filter press belt 24 discharge the dehydrated sludge through the scraper, they are cleaned by flushing with the spray head before rotating for the next filter press dehydration. At the same time, the transmission belt 4 77 drives the mounting shaft 71 to rotate. When the mounting shaft 71 rotates, it drives the sleeve 72 to rotate through the limit groove 78 and the fixed block 79, and then drives the brush 73 to brush and clean the upper filter press belt 23, thereby improving the cleaning effect of the sludge compressed in the gap. At the same time, through the cooperation between the fixed cam 74 and the movable cam 75, the fixed cam 74 continuously pushes the sleeve 72 to move outward during rotation, and continuously resets under the action of the spring 2 76, so that the brush 73 can move horizontally for brushing while rotating, which can achieve a more comprehensive cleaning effect, improve the reuse effect of the upper filter press belt 23, and improve the efficiency of sludge dehydration and the service life of the equipment.

[0026] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A water supply and drainage sludge dewatering machine, comprising a filter press frame (1), a spray frame (2) fixedly mounted on the filter press frame (1), a plurality of lower pressure rollers (21) rotatably mounted on the filter press frame (1), a plurality of upper drive rollers (22) rotatably mounted on the filter press frame (1), upper filter press belts (23) being mounted on the plurality of upper drive rollers (22), lower filter press belts (24) being mounted on the plurality of lower pressure rollers (21), and a water inlet pipe (25) being provided on the filter press frame (1), characterized in that: The filter press frame (1) is provided with a diversion component; The diversion assembly comprises two mounting frames (3) fixedly mounted on the filter press frame (1), the mounting frames (3) being provided with a plurality of mounting holes (31) distributed in a linear array, a rotating rod (32) being rotatably mounted in the mounting hole (31), a mud block (33) adapted to the upper filter press belt (23) being fixedly mounted at the bottom of the rotating rod (32), a gear (34) being fixedly mounted at the top of the rotating rod (32), a rack (35) meshing with the gear (34) being slidably mounted on the mounting frame (3), a cam (36) adapted to the rack (35) being symmetrically rotatably mounted at both ends of one of the mounting frames (3), and a driving mechanism being provided on the cam (36); Wherein, a pre-pressing component is provided on the filter press frame (1).

2. The water supply and drainage sludge dewatering machine according to claim 1, characterized in that: The driving mechanism comprises a rotating shaft (4) fixedly mounted on the cam (36); one end of the rotating shaft (4) extending from the mounting frame (3) is fixedly mounted with a bevel gear 1 (41); a rotating shaft is rotatably mounted on the side wall of the filter press frame (1); a bevel gear 2 (42) meshing with the bevel gear 1 (41) is fixedly mounted on the rotating shaft; a transmission belt 1 (43) is sleeved on the rotating shaft and one end of the central shaft on the upper driving roller (22) extending from the filter press frame (1); and a synchronous belt 1 (37) is sleeved between the two rotating shafts (4).

3. The water supply and drainage sludge dewatering machine according to claim 2, characterized in that: The two racks (35) are respectively arranged at opposite ends of the two mounting frames (3), and a connecting rod (38) is fixedly installed between the two racks (35).

4. The water supply and drainage sludge dewatering machine according to claim 1, characterized in that: The pre-pressing assembly comprises a vertical rod symmetrically fixedly mounted on the filter press frame (1), a mounting groove (5) being provided on the vertical rod, pre-pressing rollers (53) respectively adapted to the upper filter press belt (23) and the lower filter press belt (24) being symmetrically arranged in the mounting groove (5), an elastic cover (54) being fixedly sleeved on the pre-pressing roller (53), a transmission belt 2 (55) being sleeved between one of the pre-pressing rollers (53) and one of the lower filter press rollers (21), a transmission belt 3 (56) being sleeved between the other pre-pressing roller (53) and one of the upper drive rollers (22), an elastic assembly being arranged between the elastic cover (54) and the pre-pressing roller (53), and an adjustment assembly being arranged between the two pre-pressing rollers (53).

5. The water supply and drainage sludge dewatering machine according to claim 4, characterized in that: The adjustment assembly includes a screw rod (51) rotatably mounted in the mounting groove (5), and the threads at both ends of the screw rod (51) are arranged in opposite directions. A slider (52) is symmetrically slidably mounted in the mounting groove (5), and the slider (52) is threadedly connected to the screw rod (51). The slider (52) is rotatably connected to the pre-pressing roller (53), and an adjustment handle (57) is fixedly mounted on one end of the screw rod (51) extending from the vertical rod.

6. The water supply and drainage sludge dewatering machine according to claim 4, characterized in that: The elastic component includes a sliding groove (58) formed in an annular array on the pre-pressing roller (53), a support plate (59) is slidably installed in the sliding groove (58), and the end of the support plate (59) away from the pre-pressing roller (53) is fixedly connected to the inner wall of the elastic cover (54), and a plurality of springs (510) are fixedly installed between the support plate (59) and the sliding groove (58).

7. The water supply and drainage sludge dewatering machine according to claim 4, characterized in that: A vibrating roller (6) corresponding to the upper filter press belt (23) is rotatably mounted on the filter press frame (1), a plurality of protrusions (61) are fixedly mounted on the vibrating roller (6), and a second synchronous belt (62) is sleeved between the vibrating roller (6) and one of the pre-pressing rollers (53) located at the top.

8. The water supply and drainage sludge dewatering machine according to claim 1, characterized in that: The filter press frame (1) is symmetrically fixedly mounted with mounting blocks (7) corresponding to the spray frame (2), a mounting shaft (71) is rotatably mounted between the mounting blocks (7), a sleeve (72) is slidably mounted on the mounting shaft (71), a brush (73) is fixedly mounted on the sleeve (72), a transmission belt (77) is mounted between one end of the mounting shaft (71) extending from the mounting block (7) and one end of the central axis of the upper drive roller (22) extending from the filter press frame (1), a translation mechanism is arranged on the sleeve (72), and a limiting mechanism is arranged on the mounting shaft (71).

9. The water supply and drainage sludge dewatering machine according to claim 8, characterized in that: The translation mechanism comprises a fixed cam (74) fixedly mounted on one of the mounting blocks (7), a movable cam (75) adapted to the fixed cam (74) fixedly mounted on the sleeve (72), and a second spring (76) slidably mounted between the other end of the sleeve (72) and the mounting block (7).

10. The water supply and drainage sludge dewatering machine according to claim 9, characterized in that: The limiting mechanism includes a limiting groove (78) provided on the mounting shaft (71), a fixing block (79) slidably connected to the limiting groove (78) is fixedly mounted on the inner side wall of the sleeve (72), and the length of the limiting groove (78) is greater than the length of the fixing block (79).

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