Self-cleaning type dehydrator

Abstract

The invention relates to the technical field of solid-liquid separation equipment, and discloses a self-cleaning type dehydrator which comprises a supporting frame, and two or more supporting plates arranged at intervals are arranged in the direction from the feeding end to the discharging end of the supporting frame; the filtering unit is provided with two sections or more than two sections along the direction from the feeding end to the discharging end of the supporting frame, and a single section of filtering unit is positioned between two adjacent supporting plates; each section of filter unit comprises two or more groups of movable components; the driving mechanism is supported by the supporting plate, is matched with the movable components and is used for driving each group of movable components in the same section of filtering unit to perform circular motion with staggered motion trails; the periphery of the movable ring extends smoothly, a connecting lug used for being connected with the connecting columns in series is arranged on the periphery of the movable ring in a protruding mode, and the periphery of the connecting lug is provided with a guide part used for guiding impurities downwards away from the movable ring in the circular motion direction of the movable ring. The filtering permeability of the equipment can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of solid-liquid separation equipment, and in particular to a self-cleaning dehydrator. Background Art

[0002] Solid-liquid separation through a dehydrator is a common process in industrial production, especially in the fields of sewage treatment and mineral processing.

[0003] Usually, the dehydrator constructs a through-hole body through a stacked structure of a fixed ring and a movable ring, wherein the fixed ring is fixedly mounted on the frame of the dehydrator, and the movable ring moves relative to the fixed ring, and the overlapping position between the two is dynamically adjusted to keep the filter seam unobstructed. For example, referring to the Chinese patent document with publication number CN211896615U, a reciprocating laminated solid-liquid separator and a mixing tank are disclosed, which discloses that a second driving mechanism drives a first closed movable ring sheet group to move through a first transmission device, so that a relative movement occurs between the first closed movable ring sheet group and the second closed ring sheet group, and all the movable ring sheets are connected as a whole through a first linkage shaft to move synchronously.

[0004] According to the above-mentioned related technologies, in the actual operation process, since all the movable ring pieces share the connecting column (i.e., the first linkage shaft in the related technology) and are connected as a whole, the connecting column has a large load-bearing capacity and is easy to bend. What's more, the impurities escaping from the filter seam tend to gradually accumulate and harden on the ears of the movable ring pieces used to connect the connecting column in series and the outer peripheral wall of the fixed ring. The long-term siltation phenomenon will weaken the dehydration efficiency of the dehydrator, and it is necessary to add a spray device to the dehydrator to assist in keeping the filter seam clean. For example, referring to the Chinese patent document with publication number CN212757518U, an improved solid-liquid separator with a sweeping spray device is disclosed, which discloses a laminated spiral dehydrator and a cleaning device, and the cleaning device is arranged on the periphery of the through-hole body of the laminated spiral dehydrator, and spray cleaning is performed on the periphery of the dehydrator through a spray pipe. However, the installation of a spray device not only consumes a large amount of water, increases the burden of the internal circulation, but also increases the complexity of the equipment structure and operation, and it is difficult to avoid blind spots in spray flushing, and it is not easy to effectively remove the leaked mud. Summary of the invention

[0005] In order to improve the filtration permeability of the equipment, the present application provides a self-cleaning dehydrator.

[0006] The present application provides a self-cleaning dehydrator, which adopts the following technical solution: A self-cleaning dehydrator, comprising: The support frame has two or more support plates arranged at intervals from the feed end to the discharge end; The filter unit has two or more sections along the direction from the feed end to the discharge end of the support frame, and a single section of the filter unit is located between two adjacent support plates; each section of the filter unit includes two or more groups of movable components; each group of the movable components includes a movable ring and a connecting column that connects all the movable rings in the same group in series; the movable ring has a through hole for sludge to pass through, the movable rings in each group of movable components are arranged alternately with the movable rings in the adjacent group, and a filter seam connected to the through hole is provided between two adjacent and different groups of movable rings, and the through holes of the filter units in each section are connected in sequence; A first driving mechanism, supported by the support plate and cooperating with the movable assembly, is used to drive each group of the movable assembly to move relative to the support plate, and each group of the movable assembly in the same section of the filter unit to perform cyclic circular motion with staggered motion trajectories; There is one or more spiral shafts, the spiral shafts are rotatably connected to the support frame and pass through each of the filter units through the through holes, and are used to transport the filtered material to move toward the discharge end of the support frame; and A second driving mechanism, mounted on the support frame and connected to the screw shaft, for driving the screw shaft to rotate; The outer periphery of the movable ring extends smoothly, and a connecting ear protrudes from the outer periphery of the movable ring for serial connection of the connecting column, and the outer periphery of the connecting ear has a guide portion for guiding impurities downward away from the movable ring along the circumferential motion direction of the movable ring.

[0007] By adopting the above technical solution, when the filtered material passes through the filter device, water flows out from the filter seam to dehydrate the filtered material. The first driving mechanism drives all movable rings to move, and the movement trajectories of different groups of movable rings in the same filter unit are staggered, so that the movable rings can squeeze and shear the filtered material to improve the dehydration effect, and disturb the filtered material to keep the filter seam unobstructed. At the same time, when the movable ring moves, it can push the impurities on the outer periphery of the movable ring away from the movable ring in the direction of circular motion through its own smooth outer periphery and the guidance of the guide part, so that the outer periphery of the movable ring is not easy to accumulate impurities, and the movable ring is self-cleaning, so there is no need to install a spray device in the equipment, and the equipment is easy to maintain.

[0008] Optionally, the first driving mechanism includes There are two or more driving rods, each of which is rotatably connected and passes through all the support plates at the same time; a driving source, mounted on the supporting frame and driving one of the driving rods to rotate; A gear transmission mechanism connects all the driving rods so that all the driving rods rotate at the same speed and in the same direction; and The linkage groups correspond one to one with the movable components, and each linkage group includes two or more linkage plates, which are connected to the corresponding movable components. At the same time, the linkage plates are connected to two or more driving rods through eccentric mechanisms, so that when the driving rods rotate, the linkage plates are driven to move in a circular trajectory; the eccentric direction and eccentric distance of the eccentric mechanisms of the same linkage group relative to the driving rod are consistent; in the same filter unit, the eccentric directions of the eccentric mechanisms of different linkage groups relative to the driving rod are different.

[0009] By adopting the above technical solution, the connecting plate and the driving rod are connected by an eccentric mechanism, so that the movable component can move in a circular trajectory, and the eccentric directions of different connecting groups in the same filter unit are different, thereby realizing relative movement between the movable components and enhancing the filtering effect.

[0010] Optionally, the feed end of the support frame has a mud inlet for the filter material to enter, the number of the driving rods is two, and the two driving rods are respectively relative to the two sides of the movable component to avoid the mud inlet, the driving source is installed at the discharge end of the support frame, and the gear transmission mechanism is installed at the feed end of the support frame.

[0011] By adopting the above technical solution, the driving rods are respectively arranged on two opposite sides of the movable component, which balances the driving force and improves the stability of the equipment. The gear transmission mechanism is installed at the feed end of the support frame, which can reduce interference with the components of the discharge end compared to installing it at the discharge end of the support frame, and is easy to install and maintain.

[0012] Optionally, two or more driving rods are relative to the upper side of the movable component, and the driving source of the gear transmission mechanism is installed at the discharge end of the support frame.

[0013] By adopting the above technical solution, the driving rods are all arranged relative to the upper side of the movable assembly, so that the distance between the driving rods can be reduced, thereby reducing the requirements for the installation size of the gear transmission mechanism, so that the gear transmission mechanism can be installed at the discharge end of the support frame, making the gear transmission mechanism less likely to be infiltrated with water and easy to disassemble and maintain. At the same time, the driving rod located on the upper side of the movable assembly is not easy to contact the leaked mud, and is easy to keep itself clean.

[0014] Optionally, the eccentricity of each filter unit corresponding to the eccentric mechanism can be different from the eccentricity of the remaining filter units corresponding to the eccentric mechanism.

[0015] By adopting the above technical solution, based on the segmentation of the filter unit, the eccentric mechanism in each filter unit can be set with different eccentric distances to adapt to various dehydration scenarios and improve the adaptability of the equipment.

[0016] Optionally, the eccentricity of the filter unit in each section corresponding to the eccentric mechanism decreases along the discharge direction.

[0017] By adopting the above technical solution, the movement trajectory of the movable component gradually converges toward the discharge direction, so as to enhance the dehydration effect in the early stage, appropriately reduce the filterability in the later stage, and reduce the occurrence of mud leakage when the extrusion pressure gradually increases.

[0018] Optionally, the connecting columns in two adjacent filter units are staggered.

[0019] By adopting the above technical solution, the connecting columns of adjacent filter units are staggered to avoid interference between the connecting columns, thereby improving the reliability and stability of the equipment and enabling the movable components in adjacent filter units to be closer, thereby improving the dehydration efficiency of the equipment and improving the compactness of the equipment.

[0020] Optionally, adjacent support plates are connected via pillars.

[0021] By adopting the above technical solution, the support plates are connected by pillars, and the ends of the pillars are assisted by gaskets to adjust the length, so as to improve the integrity between the support plates, improve the overall stability of the equipment and the accuracy of the filter seam.

[0022] Optionally, all the spiral shafts rotate in the same direction.

[0023] Optionally, when the spiral shaft transports the material to be filtered to the discharge end of the support frame, the rotation direction of the spiral shaft is in the same direction as the circular motion direction of the movable component.

[0024] By adopting the above technical solution, the direction of rotation of the spiral shaft is the same as the circular motion of the movable component, and the distance between the inner wall of the movable ring and the spiral shaft can be continuously changed so that the filter material is squeezed, while the movable ring can assist in pushing the filter material toward the discharge end of the support frame.

[0025] In summary, the present application includes at least one of the following beneficial effects: 1. The filter unit is divided into sections, and different connecting columns are used in different sections of the filter unit to connect the movable ring in series, so as to reduce the burden on the connecting column caused by the spiral shaft squeezing the filter unit when working, so as to make the equipment run more smoothly and improve the stability and service life of the equipment. At the same time, the smooth extension of the outer periphery of the movable ring and the guidance of the guide part can automatically guide the impurities downward along the circumferential motion direction of the movable ring, so that the impurities are not easy to accumulate and clog the outer wall of the movable ring, keep the filter seam open for a long time, realize the self-cleaning of the movable ring, and improve the permeability of the filter seam.

[0026] 2. Through the segmentation of the filter unit, the eccentricity of the eccentric mechanism in each filter unit can be adjusted, so that during the filtration process, different eccentricities can change the position and function of the spiral shaft in each section, thereby adjusting the distribution and flow of the filtered material in the filter unit, making the filtration process smoother, and at the same time allowing the leaked mud to be effectively discharged at the appropriate position and time, reducing the impact of the leaked mud on the filtration effect, achieving a good balance between filtration and leaked mud, and improving the working efficiency and stability of the entire filtration device and dehydrator; 3. The relative movement between the spiral shaft and the movable ring can exert a stronger squeezing effect on the filtered material. The increase in squeezing force can effectively promote the liquid to pass through the filter slit faster, thereby improving the filtration effect. At the same time, the relative movement between the spiral shaft and the movable ring can also play a certain self-cleaning role, preventing the filter slit from being blocked, and further ensuring the continuity and stability of the filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a front view of the first embodiment of the present application; Figure 2 is a top view of the screw shaft and the second driving mechanism in the first embodiment of the present application; Figure 3 This is a schematic diagram of the three-dimensional structure of the first embodiment of the present application after the second driving mechanism is hidden; Figure 4 is a schematic diagram of the explosion structure of the filter unit and the first driving mechanism in the first embodiment of the present application; Figure 5 It is a schematic diagram of the explosion structure of a filter unit in Example 1 of the present application; Figure 6 It is a schematic diagram of the structure of the movable ring a and the movable ring b in the first embodiment of the present application; Figure 7 It is a schematic diagram of the structure of the movable ring c and the movable ring d in the first embodiment of the present application; Figure 8 is a schematic structural diagram of the gear transmission mechanism in Example 1 of the present application; Fig. 9 is a schematic diagram of the structure of the gear set in the first embodiment of the present application; Fig.10 is a front view of the second embodiment of the present application; Fig.11 It is a schematic diagram of the three-dimensional structure of the second embodiment of the present application; Fig.12 is a schematic diagram of the structure of the gear transmission mechanism in the second embodiment of the present application; Explanation of the accompanying drawings: 1. Support frame; 101. Support plate; 102. Mud inlet box; 103. Mud outlet box; 104. Pillar; 2. Assembly space; 3. Movable component; 31. Movable ring; 32. Connecting column; 4. Through hole; 5. First driving mechanism; 51. Driving rod; 52. Driving source; 53. Gear transmission mechanism; 54. Linking group; 541. Linking plate; 6. Connecting ear; 7. Guide part; 8. Eccentric mechanism; 10. Screw shaft; 11. Second driving mechanism; 111. Shaft drive motor; 112. Gear group; 12. Perforation; 13. Make way hole; 14. First ring drive gear box; 15. Second ring drive gear box; 16. Shaft drive motor seat; 17. Shaft drive gear box. DETAILED DESCRIPTION

[0028] The present application is further described in detail below in conjunction with the accompanying drawings.

[0029] Embodiment 1: The present application embodiment discloses a self-cleaning dehydrator, and the object to be filtered in this embodiment is sludge. Figure 1 and Figure 2 The self-cleaning dehydrator comprises a support frame 1, a filter unit, a first driving mechanism 5, a screw shaft 10 and a second driving mechanism 11. The first driving mechanism 5 is mounted on the support frame 1 and supports the filter unit, the filter unit is used to pass the filter material through the sludge to dehydrate the sludge, and the screw shaft 10 is driven by the second driving mechanism 11 and mounted on the support frame 1, and is used to pass the sludge from the feed end of the support frame 1 through the filter unit to the discharge end of the support frame 1.

[0030] The supporting frame 1 includes a supporting plate 101 , a mud inlet box 102 , a mud outlet box 103 and pillars 104 .

[0031] The mud inlet box 102 is located at the feeding end of the support frame 1 and has a mud inlet for mud to enter. The mud outlet box 103 is located at the discharging end of the support frame 1 and has a mud outlet for the filtered material to be discharged.

[0032] Reference Figure 3 and Figure 4The support plate 101 is in the shape of a plate, and there are two or more support plates 101 arranged at intervals along the distribution direction of the mud inlet box 102 and the mud outlet box 103, and the arrangement direction of the support plates 101 is perpendicular to the plate surface of the support plate 101. Two support plates 101 that are far away from each other among all the support plates 101 are fixedly connected to the mud inlet box 102 and the mud outlet box 103 through flanges, respectively, and the remaining support plates 101 are connected to the adjacent support plates 101 through pillars 104, so that all the support plates 101 are connected into a whole. Specifically, there are four pillars 104 that connect two adjacent support plates 101 along the direction perpendicular to the plate surface of the support plate 101, and the four pillars 104 are respectively connected to the four corners of the support plate 101, and the two ends of the pillars 104 that are far away from each other slide through the two adjacent support plates 101 and are locked with nuts after being covered with gaskets to position the two adjacent support plates 101.

[0033] It should be noted that, in this embodiment, an assembly space 2 for placing a filter unit is formed between any two adjacent support plates 101. The pillars 104 corresponding to the two adjacent assembly spaces 2 are staggered on the support plate 101, so as to reduce the required thickness of the support plate 101 between the two filter units, maintain the connection strength while improving the convenience of installing the support plate 101, and reduce the production cost. In other embodiments, it can also be arranged that at least one group of two adjacent support plates 101 forms an assembly space 2, and the connecting flanges between the other two adjacent support plates 101 form a transition section for sludge to pass through.

[0034] In this embodiment, three support plates 101 are arranged along the distribution direction of the mud inlet box 102 and the mud outlet box 103 to form two assembly spaces 2. In other embodiments, the number of support plates 101 may be two, four or five.

[0035] For the filter unit, the filter unit corresponds to the assembly space 2 one by one, and has two or more sections. Each filter unit section is located in its corresponding assembly space 2. In this embodiment, the number of filter units is two sections corresponding to the assembly space 2.

[0036] Reference Figure 3 and Figure 5 Each filter unit includes two or more groups of movable components 3. In this embodiment, the movable components 3 are preferably two groups. Each group of movable components 3 includes a movable ring 31 and a connecting column 32. A plurality of movable rings 31 are evenly spaced and arranged along the distribution direction of the support plate 101. The connecting column 32 simultaneously connects all the movable rings 31 in the same group in series, so that all the movable rings 31 in the same group form a whole.

[0037] Specifically, a connecting ear 6 protrudes outward from the outer circumference of the movable ring 31, and a through hole 12 for the connecting column 32 to pass through is opened on the connecting ear 6. The connecting column 32 passes through the movable ring 31 in the same movable component 3 through the through hole 12 along the distribution direction of the movable ring 31, and the two ends of the connecting column 32 that are far away from each other are respectively passed through two adjacent support plates 101. One or more connecting ears 6 are provided on the movable ring 31. In this embodiment, the number of connecting ears 6 on each movable ring 31 is two, so the number of connecting columns 32 of each group of movable components 3 is two corresponding to the number of connecting ears 6.

[0038] In addition, in order to avoid interference between the connecting posts 32 on different groups of movable rings 31, the connecting ears 6 of the movable rings 31 of different movable components 3 in the same filter unit are staggered, so that the connecting posts 32 in different movable components 3 are staggered. Furthermore, in order to avoid interference between the connecting posts 32 on the support plate 101 between two adjacent filter units, the connecting posts 32 in different filter units are also staggered.

[0039] The movable rings 31 in two or more groups of movable components 3 are arranged at intervals with each other. Specifically, the movable rings 31 in each group of movable components 3 are alternately arranged with the movable rings 31 in adjacent movable components 3 along the distribution direction of the support frame, and two movable rings 31 far away from each other in the same filter unit are respectively abutted or close to the two support plates 101 corresponding to the filter unit.

[0040] Reference Figure 3 and Figure 5 The inner periphery of the movable ring 31 is combined to form a through hole 4, and the support plate 101 has a first connecting hole opposite to and connected to the through hole 4. The through holes 4 of two adjacent filter units can be connected through the first connecting hole, so that each filter unit is connected in sequence along the distribution direction of the support plate 101. The through hole 4 and the first connecting hole are both used for the screw shaft 10 to pass through to drive the sludge to pass through.

[0041] There is a filter gap between two movable rings 31 of adjacent and different movable assemblies 3, and the filter gap is connected with the through hole 4. When the sludge passes through the through hole 4, the water in the sludge flows out from the filter gap. The filter gap can be maintained by fixing the movable ring 31 on the connecting column 32, and a gasket (not shown in the figure) can be sleeved on the connecting column 32, and the gasket abuts between two adjacent movable rings 31 in one group of movable assemblies 3, and the thickness of the gasket is greater than the thickness of the movable rings 31 of different groups between the two movable rings 31, so as to form a filter gap.

[0042] Reference Figure 4 and Figure 5Each group of movable components 3 cooperates with the first driving mechanism 5, and the first driving mechanism 5 drives each group of movable components 3 to perform cyclic circular motion in the direction parallel to the surface of the support plate 101. The circular motion trajectories of different groups of movable components 3 in the same filter unit are staggered, so that the two adjacent and different groups of movable rings 31 continue to move alternately, thereby maintaining the unobstructed filter seam, and the movable ring 31 can continuously disturb and shear the sludge to improve the water filtration efficiency. Adaptively, the size of the hole on the support plate 101 for the connecting column 32 to penetrate is larger than the size of the connecting column 32, so that the connecting column 32 can move.

[0043] What's more, the outer periphery of the movable ring 31 is in a smoothly extended elliptical shape, the connecting ear 6 protrudes from the outer periphery of the movable ring 31 and has a guide portion 7. The guide portion 7 can guide impurities on the outer peripheral wall of the movable ring 31 downward away from the movable ring 31 along the circumferential motion direction of the movable ring 31 during the movement of the movable ring 31, so as to achieve self-cleaning of the movable ring 31 and prevent siltation from accumulating on the outer periphery of the movable ring 31.

[0044] Reference Figure 4 and Figure 5 In this embodiment, the movable components 3 in the two filter units each have two groups. In other embodiments, the movable components 3 in the two filter units can be three groups, four groups, etc., or the movable components 3 in one filter unit can be two groups, and the movable components 3 in the other filter unit can be three groups.

[0045] Specifically, the two filter units are respectively the first filter unit and the second filter unit, the movable rings 31 of the two groups of movable components 3 in the first filter unit are respectively movable ring a and movable ring b, and the movable rings 31 of the two groups of movable components 3 in the second filter unit are respectively movable ring c and movable ring d.

[0046] Reference Figure 6 and Figure 7, expressed in the direction of the diagram, the circular motion directions of the movable rings a, b, c, and d are all clockwise. The two connecting ears 6 on the movable ring a are respectively located on the left and right opposite sides of the movable ring a, and the two connecting ears 6 are respectively close to the upper left corner and the lower right corner of the movable ring a. The guide portion 7 is the upper side surface of the connecting ear 6, which tends to gradually tilt downward away from the movable ring a. The two connecting ears 6 on the movable ring b are respectively located on the upper and lower opposite sides of the movable ring b, and the two connecting ears 6 are respectively close to the upper left corner and the lower right corner of the movable ring b. At the same time, the two connecting ears 6 are respectively connected to the arc surfaces on the opposite sides of the movable ring b. The guide portion 7 is the right side surface of the connecting ear 6, which tends to gradually extend downward. The two connecting ears 6 on the movable ring c are respectively located on the left and right opposite sides of the movable ring c, and the two connecting ears 6 are respectively close to the lower left corner and the upper right corner of the movable ring c. The guide portion 7 is the upper side surface of the connecting ear 6, which tends to gradually tilt downward away from the movable ring c. The two connecting ears 6 on the movable ring d are respectively located at the upper left corner and the lower right corner of the movable ring d. The guide portion 7 is the right side surface of the connecting ear 6 and has a tendency to gradually tilt rightward along the downward direction.

[0047] Reference Figure 4 As for the first driving mechanism 5 , the first driving mechanism 5 includes a driving rod 51 , a driving source 52 , a gear transmission mechanism 53 and a linkage group 54 .

[0048] Reference Figure 3 and Figure 4 The driving rods 51 are round rod-shaped and have two or more. All driving rods 51 are parallel to each other and are arranged along the distribution direction of the supporting plates 101 through all the supporting plates 101. The driving rods 51 are rotatably connected to the supporting plates 101 through bearings. In this embodiment, the number of driving rods 51 is preferably two, and in other embodiments, it can be three, four, etc.

[0049] The driving source 52 is a motor, and the base of the driving source 52 is installed on the side of the mud outlet box 103 away from the mud inlet box 102. The output end of the driving source 52 is coaxially connected to one of the driving rods 51 to drive the driving rod 51 to rotate. The gear transmission mechanism 53 is installed to cooperate with all the driving rods 51 at the same time, so that all the driving rods 51 rotate at the same speed and in the same direction.

[0050] Reference Figure 4 and Figure 5 The linkage groups 54 correspond to the movable components 3 one by one. Each linkage group 54 includes two or more linkage pieces 541, each linkage piece 541 is sleeved on two connecting posts 32 in the corresponding movable component 3, and the linkage piece 541 abuts between two adjacent movable pieces of the corresponding movable component 3, and the linkage piece 541 has a second connecting hole opposite to and connected with the through hole 4. Therefore, the movement of the linkage piece 541 can drive the corresponding movable component 3 to move together. In this embodiment, the number of linkage pieces 541 in each linkage group 54 is two.

[0051] At the same time, the linking piece 541 is connected to the two driving rods 51 through the eccentric mechanism 8, and the eccentric direction and eccentric distance of the eccentric mechanism 8 of the same linking group 54 relative to the driving rod 51 are consistent, so that when the two driving rods 51 rotate synchronously, the linking piece 541 is driven to move in a circular trajectory, and then the linking piece 541 drives the movable component 3 to move in a circular trajectory. A clearance hole 13 is opened on the linking piece 541, and the connecting column 32 of the same filter unit but different movable components 3 passes through the linking piece 541 through the clearance hole 13. The size of the clearance hole 13 is larger than the size of the connecting column 32, so as to make way for the movement of the connecting column 32. Reference Figure 3 and Figure 4 It should be noted that the eccentric mechanism 8 corresponding to the same filter unit but in different linkage groups 54 has different eccentric directions relative to the driving rod 51, so that the circular trajectory motions of the two groups of movable components 3 in the same filter unit are misaligned. In this embodiment, the eccentric mechanism 8 is an eccentric bearing, which is fixedly eccentrically sleeved on the driving rod 51, and the linkage piece 541 is rotatably sleeved on the eccentric bearing.

[0052] Furthermore, the eccentricity of the eccentric mechanism 8 corresponding to each filter unit can be different from the eccentricity of the eccentric mechanism 8 corresponding to the other filter units. In this embodiment, the eccentricity of the eccentric mechanism 8 corresponding to each filter unit decreases in the direction close to the mud outlet box 103, so that the disturbance amplitude of the movable ring 31 in the filter unit close to the mud inlet box 102 is greater than the disturbance amplitude of the movable ring 31 in the filter unit close to the mud outlet box 103, so that the filter seam in the filter unit close to the mud inlet box 102 has better permeability, which helps to improve the water filtering efficiency. In other embodiments, the change of the eccentricity can also be small first and then large, or large first, then small and then large.

[0053] Reference Figure 3 and Figure 8 Further, in this embodiment, the two driving rods 51 are respectively located at the upper and lower diagonal positions relative to the movable assembly 3 to avoid the mud inlet of the mud inlet box 102. The first ring driving gear box 14 is installed on the side of the mud inlet box 102 away from the mud outlet box 103. The ends of the two driving rods 51 extend into the first ring driving gear box 14. The gear transmission mechanism 53 includes a driving gear fixedly coaxially sleeved on the driving rod 51 connected to the driving source 52, a driven gear fixedly coaxially sleeved on the other driving rod 51, and three transmission gears meshed in sequence between the driven gear and the driving gear. The transmission gear is rotatably connected to the first ring driving gear box 14. Due to the upper and lower distribution of the driving rods 51, the distance between the two driving rods 51 is large, and the number of gears in the gear transmission mechanism 53 is large. Installing the gear transmission mechanism 53 at the mud inlet box 102 can avoid the parts near the mud outlet box 103, thereby improving the convenience of disassembly and assembly.

[0054] Reference Figure 1 and Figure 3 For the spiral shaft 10, there is one or more spiral shafts 10. When there are multiple spiral shafts 10, the multiple spiral shafts 10 are arranged in parallel with each other in the horizontal or vertical direction, and the two ends of the spiral shaft 10 that are far away from each other are respectively rotatably connected to the mud outlet box 103 and the mud inlet box 102, and the spiral shaft 10 passes through all the movable rings 31 through the through hole 4. In this embodiment, there are two spiral shafts 10, and the two spiral shafts 10 are arranged in the horizontal direction.

[0055] Reference Figure 1 and Fig. 9 As for the second driving mechanism 11, the second driving mechanism 11 includes an axis driving motor 111 and a gear set 112. The side of the mud discharge box 103 away from the mud inlet box 102 is detachably mounted with an axis driving motor seat 16 through bolts. The axis driving motor 111 is mounted on the axis driving motor seat 16. One end of the screw shaft 10 passes through the mud discharge box 103 and is connected to the output end of the axis driving motor 111. An axis driving gear box 17 is also mounted on the axis driving motor seat 16. The gear set 112 is located in the axis driving gear box 17 and cooperates with the two screw shafts 10 to drive the two screw shafts 10 to rotate synchronously.

[0056] The gear set 112 in this embodiment includes a main gear coaxially fixedly sleeved on one of the screw shafts 10, a slave gear coaxially fixedly sleeved on the other screw shaft 10, and an intermediate gear meshed with the main gear and the slave gear at the same time, so that the two screw shafts 10 rotate in the same direction. In other embodiments, the gear set 112 can also be configured to make the two screw shafts 10 rotate in opposite directions.

[0057] When the dehydrator is in use, the sludge entering the mud inlet box 102 is guided to the through hole 4 by the rotating screw shaft 10 and moves to the mud outlet box 103. In the process of moving to the mud outlet box 103, the sludge is filtered and dehydrated by the filtering device.

[0058] Furthermore, in this embodiment, the direction of the circular motion of the movable component 3 is the same as the rotation direction of the screw shaft 10. When the blades on the screw shaft 10 convey the sludge in the direction of the mud discharge box 103, the movable ring 31 can squeeze the sludge together with the blades and give the sludge a boost to move in the direction of the mud discharge box 103, so as to improve the dehydration and conveying efficiency of the sludge.

[0059] The implementation principle of a self-cleaning dehydrator in the embodiment of the present application is as follows: the flocculated sludge flocs fall from the mud inlet of the mud inlet box 102 onto the spiral shaft 10, are brought into the through hole 4 by the spiral shaft 10 and move toward the mud outlet box 103. During the movement of the sludge flocs toward the mud outlet box 103, the driving source 52 drives the driving rod 51 to rotate, and the driving rod 51 drives the movable sheet to perform circular trajectory motion through the eccentric mechanism 8, and the motion trajectories of the movable sheets of different groups in the same filter unit are staggered, so that the movable sheet disturbs and shears the sludge flocs, and the water in the sludge flocs flows out from the filter seam. The sludge that partially leaks out of the movable ring 31 will naturally fall along the outer periphery of the movable ring 31 and the guide part 7 of the connecting ear 6 under the guidance of the circular motion of the movable ring 31, and it is not easy to accumulate mud.

[0060] After the sludge flocs are processed, the driving source 52 drives the driving rod 51 to reverse for a period of time to change the accumulation direction of the sludge on the movable ring 31 and further improve the self-cleaning effect of the movable ring 31 .

[0061] Embodiment 2: The difference between the embodiment of the present application and the first embodiment lies in: the installation position of the driving rod 51 is different and the gear transmission mechanism 53 is different.

[0062] Reference Fig.10 and Fig.11 Specifically, there are two driving rods 51, and both driving rods 51 are opposite to one side of the movable component 3. In this embodiment, both driving rods 51 are located above the movable component 3 and opposite to the upper side of the movable component 3. In other embodiments, both driving rods 51 may be located below the movable component 3.

[0063] Reference Fig.10 and Fig.12 In this embodiment, there is no first ring drive gearbox 14, and a second ring drive gearbox 15 is installed on a side of the support plate 101 near one end of the mud discharge box 103 facing the mud discharge box 103, one of the drive rods 51 passes through the second ring drive gearbox 15 and is connected to the output end of the drive source 52, and the end of the other drive rod 51 extends into the second ring drive gearbox 15. The gear transmission mechanism 53 includes a driving gear fixedly and coaxially sleeved on the driving rod 51 connected to the drive source 52, a driven gear fixedly and coaxially sleeved on the other driving rod 51, and a transmission gear meshed between the driven gear and the driving gear in sequence, the transmission gear is rotatably connected to the second ring drive gearbox 15, and the driving gear, the transmission gear and the driven gear are arranged in the horizontal direction.

[0064] Since the driving rods 51 are arranged on the same side, the distance between the two driving rods 51 is small, the number of gears in the gear transmission mechanism 53 is small and the gear transmission mechanism 53 occupies less space, and the gear transmission mechanism 53 is installed near the mud discharge box 103, which is not easy to interfere with the parts around the mud discharge box 103, and the gear transmission mechanism 53 is not easy to get into water at the mud discharge box 103, which is convenient for disassembly and maintenance. What's more, when the driving rods 51 are all located above the movable assembly 3, the water outlet space below the movable assembly 3 is expanded, and the driving rods 51 are not easily affected by the falling impurities and sludge during operation.

[0065] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A self-cleaning dehydrator, characterized in that: include: The support frame has two or more support plates arranged at intervals from the feed end to the discharge end; The filter unit has two or more sections along the direction from the feed end to the discharge end of the support frame, and a single section of the filter unit is located between two adjacent support plates; each section of the filter unit includes two or more groups of movable components; each group of the movable components includes a movable ring and a connecting column that connects all the movable rings in the same group in series; the movable ring has a through hole for sludge to pass through, the movable rings in each group of movable components are arranged alternately with the movable rings in the adjacent group, and a filter seam connected to the through hole is provided between two adjacent and different groups of movable rings, and the through holes of the filter units in each section are connected in sequence; A first driving mechanism, supported by the support plate and cooperating with the movable assembly, is used to drive each group of the movable assembly to move relative to the support plate, and each group of the movable assembly in the same section of the filter unit to perform cyclic circular motion with staggered motion trajectories; There is one or more spiral shafts, the spiral shafts are rotatably connected to the support frame and pass through each of the filter units through the through holes, and are used to transport the filtered material to move toward the discharge end of the support frame; as well as A second driving mechanism, mounted on the support frame and connected to the screw shaft, for driving the screw shaft to rotate; The outer periphery of the movable ring extends smoothly, and a connecting ear protrudes from the outer periphery of the movable ring for serial connection of the connecting column, and the outer periphery of the connecting ear has a guide portion for guiding impurities downward away from the movable ring along the circumferential motion direction of the movable ring.

2. A self-cleaning dehydrator according to claim 1, characterized in that: The first driving mechanism comprises There are two or more driving rods, each of which is rotatably connected and passes through all the support plates at the same time; a driving source, mounted on the supporting frame and driving one of the driving rods to rotate; A gear transmission mechanism connects all the driving rods so that all the driving rods rotate at the same speed and in the same direction; and The linkage groups correspond one to one with the movable components, and each linkage group includes two or more linkage plates, which are connected to the corresponding movable components. At the same time, the linkage plates are connected to two or more driving rods through eccentric mechanisms, so that when the driving rods rotate, the linkage plates are driven to move in a circular trajectory; the eccentric direction and eccentric distance of the eccentric mechanisms of the same linkage group relative to the driving rod are consistent; in the same filter unit, the eccentric directions of the eccentric mechanisms of different linkage groups relative to the driving rod are different.

3. A self-cleaning dehydrator according to claim 2, characterized in that: The feed end of the support frame has a mud inlet for the filter material to enter. There are two drive rods, which are respectively located on opposite sides of the movable component to avoid the mud inlet. The drive source is installed at the discharge end of the support frame, and the gear transmission mechanism is installed at the feed end of the support frame.

4. A self-cleaning dehydrator according to claim 2, characterized in that: Two or more driving rods are relative to the upper side of the movable component, and the driving originates from the gear transmission mechanism which is installed at the discharge end of the supporting frame.

5. A self-cleaning dehydrator according to claim 2, characterized in that: The eccentricity of each filter unit corresponding to the eccentric mechanism can be different from the eccentricity of the other filter units corresponding to the eccentric mechanism.

6. A self-cleaning dehydrator according to claim 5, characterized in that: The eccentricity of the filter unit corresponding to the eccentric mechanism in each section decreases along the direction close to the discharge.

7. A self-cleaning dehydrator according to claim 1, characterized in that: The connecting columns in two adjacent filter units are staggered.

8. The self-cleaning dehydrator according to claim 1, characterized in that: The adjacent support plates are connected via pillars.

9. The self-cleaning dehydrator according to claim 1, characterized in that: The rotation directions of all the spiral shafts are consistent.

10. A self-cleaning dehydrator according to claim 9, characterized in that: When the spiral shaft conveys the material to be filtered to the discharge end of the support frame, the spiral shaft rotates in the same direction as the circular motion direction of the movable component.

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