Gravel separation equipment for wastewater treatment

Abstract

The invention discloses gravel separation equipment for wastewater treatment, and relates to the technical field of wastewater treatment. The gravel separation equipment for wastewater treatment comprises a filtering assembly, a connecting assembly, an up-down displacement assembly, a linkage assembly and a driving assembly, and the surface of the filtering assembly is fixedly connected with the connecting assembly. Through the innovative design of multiple layers of conical discs and spiral guide plates, efficient layering separation of waste water gravel is achieved, the conical discs distributed at equal intervals up and down in the filtering assembly are matched with the spiral guide plates, waste water can form a spiral flow field in inner cavities of the conical discs, and the spiral flow field can be effectively separated through the synergistic effect of centrifugal force and gravity. The gravels with the large particle sizes rapidly settle to the bottom along the inner wall of the conical disc, the gravels with the small particle sizes enter the lower-layer conical disc along with water flow to be continuously separated, and the tilt is remarkably improved; and the removal efficiency of 200-micron sand grains is improved, and the distance between the conical discs can be dynamically adjusted through a first lead screw and an adjusting plate of the connecting assembly.

Description

Technical Field

[0001] The present invention belongs to the technical field of wastewater treatment, and particularly relates to a grit separation device for wastewater treatment. Background Art

[0002] High concentration of inorganic sand particles is one of the remarkable characteristics of urban sewage in China. Sand particles with a particle size > 75 microns are usually deposited at the bottom of the biological pool, resulting in a reduction in the effective pool volume, an increase in the frequency of silt cleaning, and wear of propellers and reflux pump equipment; sand particles with a particle size < 75 microns are easily suspended in the sludge mixture, resulting in a decrease in the proportion of organic components in the activated sludge and an increase in the difficulty of sludge disposal; thus leading to an increase in the overall operation and maintenance costs of the sewage treatment plant.

[0003] The current sand sedimentation facilities used in China are mainly designed for sand particles with a diameter > 200 microns and a relative specific gravity of 2.65, and lack attention to the removal effect of sand particles with a particle size < 200 microns.

[0004] The mechanical cyclone grit chamber has a small floor area, relatively convenient operation and management, and low energy consumption, and is the current commonly used sand sedimentation facility in China. However, this type of grit chamber has a poor removal effect on sand particles with a size < 200 microns and a low ability to cope with fluctuations in the influent water volume, and cannot meet the industry requirements of refined operation, energy conservation and carbon reduction in sewage treatment plants, and urgent improvement is needed.

[0005] In the known patent CN118788006A, the cone disk assembly includes a frame body and a disk body. The frame body includes a bottom frame and a top frame. The bottom frame is connected to the top frame through a plurality of support columns. A plurality of adjustable positioners are spacedly arranged on the support columns. Two spaced positioning plates are arranged on the positioner. An adjusting block is arranged between the two positioning plates. An adjusting hole along the length direction is arranged on the adjusting block. The present invention uses a fixed cone disk assembly to replace the stirring paddle of the cyclone grit chamber, reduces the operation energy consumption, and can realize axial stratified water distribution in the grit chamber through the assembly form of the cone disk, improves the proportion of the effective sedimentation space of the pool body, reduces the surface load of the pool body, and realizes the independent operation of the sand sedimentation process between each cone disk, effectively improves the sand sedimentation efficiency, enhances the operation stability of the cyclone grit chamber, and can also effectively reduce the installation difficulty of the disk assembly through the assembly method of the positioner, positioning plate and positioning block.

[0006] However, when adjusting the cone disk in this patent, since there are multiple cone disks distributed up and down, and a plurality of connecting seats are fixedly connected to the surface of each cone disk, it takes a lot of time to adjust the cone disk, and it is also easy to cause assembly errors, which in turn affects the filtering effect. At the same time, when discharging the filtered sand and gravel, since the sand and gravel are deposited at the bottom of the cone disk, it is easy to coagulate into blocks, and it cannot achieve efficient and rapid discharge work, and it is also easy to block the sand discharge pipe.

[0007] To this end, we provide a grit separation device for wastewater treatment to solve the above problems. Summary of the Invention

[0008] The object of the present invention is to provide a grit separation device for wastewater treatment. Through the cooperation of a linkage component, a driving component, and a sand pumping component, the problems in the prior art that the connection method of the conical disk is cumbersome and complex, difficult to adjust, and inefficient during sand pumping are solved.

[0009] To solve the above technical problems, the present invention is realized through the following technical solutions.

[0010] The present invention relates to a grit separation device for wastewater treatment, which includes a filtering component, a connecting component, an up-and-down displacement component, a linkage component, and a driving component. The surface of the filtering component is fixedly connected with the connecting component, the other end of the connecting component is fixedly connected with the up-and-down displacement component, the surface of the up-and-down displacement component is fixedly connected with the linkage component, the top of the up-and-down displacement component is fixedly connected with the driving component, and a sand pumping component is fixedly connected inside the filtering component. The filtering component includes conical disks evenly distributed up and down. A spiral guide plate is fixedly connected inside the conical disk. The connecting component includes a driving gear ring I fixedly connected to the surface of the conical disk through a bearing and a connecting seat fixedly connected to the surface of the conical disk. A lead screw I is fixedly connected to the surface of the connecting seat through a bearing. A bevel gear I is fixedly connected to the surface of the lead screw I. The bevel gear I meshes with the driving gear ring I. An adjusting plate is threadedly connected to the surface of the lead screw I. The up-and-down displacement component includes a column arranged outside the filtering component. A moving groove is formed inside the column. A lead screw II is fixedly connected to the moving groove through a bearing. A moving block is threadedly connected to the surface of the lead screw II. A sleeve plate is fixedly connected to the moving block. The adjusting plate is fitted into the inner cavity of the sleeve plate and fixedly connected through a bolt. The linkage component includes a bevel gear II fixedly connected to the surface of the lead screw II. A bevel gear III meshes with the surface of the bevel gear II. A lead screw III is fixedly connected to the surface of the bevel gear III through a bearing. A screw tube is threadedly connected to the surface of the lead screw III. The screw tube is fixedly connected to the inner wall of the column through a bearing. A bevel gear IV is fixedly connected to the surface of the screw tube. A driving gear ring II meshes with the top of the bevel gear IV. The driving gear ring II is fixedly connected to the inner wall of the column through a bearing. The driving component includes a driven gear fixedly connected to the top of the lead screw II. A driving gear ring III meshes with the surface of the driven gear. The driving gear ring III is fixedly connected to the top of the column through a bearing. The sand pumping component includes a sand pumping pipe and a transmission shaft fixedly connected to the inner cavity of the sand pumping pipe through a bearing. A driving motor is fixedly connected to the top of the sand pumping pipe. An output shaft of the driving motor is fixedly connected with a driving gear. A follower gear meshes with the surface of the driving gear. The follower gear is fixedly connected to the surface of the transmission shaft. A lead screw IV is fixedly connected to the inner cavity of the transmission shaft through a bearing. A threaded block is threadedly connected to the surface of the lead screw IV. A connecting rod is fixedly connected to the surface of the threaded block. The other end of the connecting rod is fixedly connected with a bevel gear V. The bevel gear V is slidably connected to the surface of the transmission shaft. A bevel gear VI meshes with the surface of the bevel gear V. A stirring rod is fixedly connected to the surface of the bevel gear VI. The stirring rod is fixedly connected to the inner wall of the conical disk through a bearing seat. A sliding groove for the movement of the connecting rod is formed on the surface of the transmission shaft. A sand inlet through which the stirring rod passes is formed on the surface of the sand pumping pipe. A runner is fixedly connected to the top of the lead screw IV.

[0011] The present invention is further configured such that one end of the spiral guide plate is fixedly connected to a water inlet trough pipe, and the water inlet trough pipe penetrates to the outside of the conical disk. The water inlet trough pipe connected to one end of the spiral guide plate penetrates to the outside of the conical disk, facilitating the entry of wastewater into the conical disk, ensuring that the wastewater can flow smoothly under the guidance of the spiral guide plate, and enhancing the separation effect.

[0012] The present invention is further configured such that a waste discharge port is provided on one end of the sand discharge pipe located in the inner cavity of the conical disk and on one side close to the bottom of the inner cavity of the conical disk. The waste discharge port is provided at one end of the sand discharge pipe located in the inner cavity of the conical disk near the bottom, which is conducive to the smooth discharge of the separated gravel from the conical disk, avoiding the accumulation of gravel in the conical disk, and ensuring the normal operation of the equipment.

[0013] The present invention is further configured such that limiting holes are provided at both the front and rear ends of the inner cavity of the adjusting plate, and limiting rods are slidably connected to the inner cavities of the limiting holes. The other ends of the limiting rods are fixedly connected to the surface of the connecting seat. The cooperation between the limiting holes and the limiting rods in the inner cavity of the adjusting plate can limit the moving direction of the adjusting plate, prevent it from shifting during the movement, and ensure the accuracy of the adjustment.

[0014] The present invention is further configured such that handles are fixedly connected to the bottom of the driving gear ring and the surface of the driving gear ring three. The handles on the bottom of the driving gear ring and the surface of the driving gear ring three facilitate the operator to manually rotate the driving gear ring and are convenient for adjusting the equipment.

[0015] The present invention is further configured such that mounting holes for installing the screw pipe and the driving gear ring two are provided on the surface of the column, and the mounting holes are designed to be communicated with the moving grooves. The mounting holes communicated with the moving grooves are provided on the surface of the column for installing the screw pipe and the driving gear ring two, which is convenient for the installation and transmission of each component and enables the linkage assembly to work properly.

[0016] The present invention is further configured such that five groups of screw rods two are arranged at equal intervals around the circumference of the screw rod two, and four are distributed at equal intervals up and down in each group. The top of the screw rod two at the top penetrates to the top of the column and is fixedly connected to the bottom of the driven gear. The top of the screw rod two at the bottom and the two ends of other screw rods are fixedly connected to the bevel gear two. The grouping and distribution design of the screw rod two can realize the synchronous rotation of multiple screw rods two, and further drive multiple filter components to move up and down synchronously, improving the adjustment efficiency.

[0017] The present invention is further configured such that the screw rod three adopts a two-end design. One end connected to the screw pipe adopts a threaded design, and one end connected to the bevel gear three adopts a hexagonal prism design. Limiting grooves are provided at both the front and rear ends of the inner cavity of the mounting hole, and limiting blocks are slidably connected to the inner cavities of the limiting grooves. The other side of the limiting block is fixedly connected to the surface of the hexagonal prism. The two-end design of the screw rod three and the cooperation between the limiting block and the limiting groove can ensure that the screw rod three can not only achieve threaded transmission with the screw pipe during rotation but also ensure the accuracy of its moving direction.

[0018] The present invention is further configured such that mounting holes for mounting bolts are provided on the surfaces of both the connecting seat and the sleeve plate. The mounting holes on the surfaces of the connecting seat and the sleeve plate facilitate the fixed connection of the adjusting plate and the sleeve plate through bolts, ensuring the connection stability between the filtering assembly and the up-and-down displacement assembly.

[0019] The present invention is further configured such that a threaded hole for cooperating with the second lead screw is provided in the inner cavity of the moving block. The threaded hole in the inner cavity of the moving block cooperates with the second lead screw, enabling the rotation of the second lead screw to be accurately converted into the up-and-down movement of the moving block, thereby realizing the up-and-down displacement adjustment of the filtering assembly.

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

[0021] 1. Through the innovative design of multiple conical disks and spiral guide plates, the present invention realizes the efficient stratified separation of wastewater gravel. The equally spaced conical disks in the filtering assembly cooperate with the spiral guide plates, enabling the wastewater to form a spiral flow field in the inner cavity of the conical disks. By utilizing the synergistic action of centrifugal force and gravity, gravel of different particle sizes is stratified and separated according to the sedimentation velocity: gravel with larger particle sizes quickly settles to the bottom along the inner wall of the conical disk, and gravel with smaller particle sizes enters the lower conical disk with the water flow for further separation, significantly improving the removal efficiency of sand particles less than 200 microns. The first lead screw of the connecting component and the adjusting plate can dynamically adjust the distance between the conical disks. Combining with the up-and-down displacement component that drives the overall lifting of the sleeve plate by the second lead screw, it can accurately adapt to the fluctuation of the influent water volume, avoiding the problem of unstable separation effect caused by the change of flow velocity in traditional equipment, enabling the equipment to operate efficiently under different working conditions, and greatly improving the separation efficiency compared with traditional vortex grit chambers.

[0022] 2. The sand pumping component and the linkage drive system of the present invention effectively solve the problems of gravel condensation blockage and poor sand discharge. The transmission shaft in the inner cavity of the sand pumping pipe is linked with the bevel gear set through the drive motor, driving the stirring rod to rotate at a high speed at the bottom of the conical disk, breaking the condensed sand blocks and forming a fluidized state to prevent sand particle accumulation. The cooperation of the fourth lead screw and the threaded block can adjust the height of the fifth bevel gear to meet the sand cleaning requirements under different distances between the conical disks. At the same time, after the second bevel gear of the linkage component meshes with the third bevel gear, it can drive the rotation of other second lead screws to realize the synchronous up-and-down adjustment of the conical disks, avoiding the problem of shutdown maintenance caused by sand discharge port blockage in traditional equipment, greatly improving the sand discharge efficiency, and significantly reducing the equipment operation and maintenance cost. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below.

[0024] Figure 1 It is a three-dimensional view of a gravel separation device for wastewater treatment.

[0025] Figure 2 It is a schematic top view cross-section of a gravel separation device for wastewater treatmentFigure 1 .

[0026] Figure 3 It is a schematic cross-sectional view of a grit separation device for wastewater treatment.

[0027] Figure 4 It is a schematic top cross-sectional view of a grit separation device for wastewater treatment Figure 2 .

[0028] Figure 5 It is a schematic top cross-sectional view of a grit separation device for wastewater treatment Figure 3 .

[0029] Figure 6 It is a magnified schematic view of part A in a grit separation device for wastewater treatment Figure 3 in the device.

[0030] Figure 7 It is a magnified schematic view of part B in a grit separation device for wastewater treatment Figure 3 in the device.

[0031] Figure 8 It is a magnified schematic view of part C in a grit separation device for wastewater treatment Figure 3 in the device.

[0032] Figure 9 It is a magnified schematic view of part D in a grit separation device for wastewater treatment Figure 4 in the device.

[0033] Figure 10 It is a magnified schematic view of part E in a grit separation device for wastewater treatment Figure 5 in the device.

[0034] Figure 11 It is a magnified schematic view of part F in a grit separation device for wastewater treatment Figure 3 in the device.

[0035] In the attached drawings: 1. Filter assembly; 11. Conical disc; 12. Sand discharge pipe; 13. Spiral guide plate; 2. Connection assembly; 21. First driving gear ring; 22. Connection seat; 23. First lead screw; 24. First bevel gear; 25. Adjusting plate; 26. Limit rod; 3. Up and down displacement assembly; 31. Column; 32. Moving groove; 33. Second lead screw; 34. Moving block; 35. Sleeve plate; 4. Linkage assembly; 41. Second bevel gear; 42. Third bevel gear; 43. Third lead screw; 44. Screw tube; 45. Fourth bevel gear; 46. Second driving gear ring; 47. Limit groove; 48. Limit block; 5. Driving assembly; 51. Driven gear; 52. Third driving gear ring; 6. Sand pumping assembly; 61. Sand pumping pipe; 62. Transmission shaft; 63. Driving motor; 64. Driving gear; 65. Follow-up gear; 66. Fourth lead screw; 67. Threaded block; 68. Fifth bevel gear; 69. Sixth bevel gear; 610. Stirring rod; 611. Sliding groove; 612. Sand inlet. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be described with reference to the attached drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0037] Embodiment 1

[0038] Please refer to Figures 1-11, the present invention is a grit separation device for wastewater treatment, including a filtration component 1, a connection component 2, an up-and-down displacement component 3, a linkage component 4, and a drive component 5. The surface of the filtration component 1 is fixedly connected with the connection component 2, the other end of the connection component 2 is fixedly connected with the up-and-down displacement component 3, the surface of the up-and-down displacement component 3 is fixedly connected with the linkage component 4, the top of the up-and-down displacement component 3 is fixedly connected with the drive component 5, and a sand extraction component 6 is fixedly connected to the inner cavity of the filtration component 1. The filtration component 1 includes conical disks 11 evenly distributed up and down. A spiral guide plate 12 is fixedly connected to the inner cavity of the conical disk 11. The connection component 2 includes a driving gear ring 21 fixedly connected to the surface of the conical disk 11 through a bearing and a connection seat 22 fixedly connected to the surface of the conical disk 11. A lead screw 23 is fixedly connected to the surface of the connection seat 22 through a bearing. A bevel gear 24 is fixedly connected to the surface of the lead screw 23. The bevel gear 24 meshes with the driving gear ring 21. An adjusting plate 25 is threadedly connected to the surface of the lead screw 23. The up-and-down displacement component 3 includes a column 31 arranged outside the filtration component 1. A moving groove 32 is opened in the inner cavity of the column 31. A lead screw 33 is fixedly connected to the moving groove 32 through a bearing. A moving block 34 is threadedly connected to the surface of the lead screw 33. A sleeve plate 35 is fixedly connected to the moving block 34. The adjusting plate 25 is fitted into the inner cavity of the sleeve plate 35 and fixedly connected by bolts. The linkage component 4 includes a bevel gear 41 fixedly connected to the surface of the lead screw 33. A bevel gear 42 meshes with the surface of the bevel gear 41. A lead screw 43 is fixedly connected to the surface of the bevel gear 42 through a bearing. A screw tube 44 is threadedly connected to the surface of the lead screw 43. The screw tube 44 is fixedly connected to the inner wall of the column 31 through a bearing. A bevel gear 45 is fixedly connected to the surface of the screw tube 44. A driving gear ring 46 meshes with the top of the bevel gear 45. The driving gear ring 46 is fixedly connected to the inner wall of the column 31 through a bearing. The drive component 5 includes a driven gear 51 fixedly connected to the top of the lead screw 33. A driving gear ring 52 meshes with the surface of the driven gear 51. The driving gear ring 52 is fixedly connected to the top of the column 31 through a bearing. The sand extraction component 6 includes a sand extraction pipe 61 and a transmission shaft 62 fixedly connected to the inner cavity of the sand extraction pipe 61 through a bearing. A driving motor 63 is fixedly connected to the top of the sand extraction pipe 61. An output shaft of the driving motor 63 is fixedly connected with a driving gear 64. A follower gear 65 meshes with the surface of the driving gear 64. The follower gear 65 is fixedly connected to the surface of the transmission shaft 62. A lead screw 66 is fixedly connected to the inner cavity of the transmission shaft 62 through a bearing. A threaded block 67 is threadedly connected to the surface of the lead screw 66. A connecting rod is fixedly connected to the surface of the threaded block 67. The other end of the connecting rod is fixedly connected with a bevel gear 68. The bevel gear 68 is slidably connected to the surface of the transmission shaft 62. A bevel gear 69 meshes with the surface of the bevel gear 68. A stirring rod 610 is fixedly connected to the surface of the bevel gear 69. The surface of the stirring rod 610 is fixedly connected to the inner wall of the conical disk through a bearing seat. A sliding groove 611 for the movement of the connecting rod is opened on the surface of the transmission shaft 62.The surface of the sand suction pipe 61 is provided with a sand inlet 612 through which the stirring rod 610 passes. The top of the fourth lead screw 66 is fixedly connected with a runner.

[0039] Specifically: The conical disks 11 evenly distributed at equal distances up and down provide a space for layered filtration of the wastewater. The sand discharge pipe 12 is fixed inside the conical disk 11 for discharging the separated gravel. The spiral guide plate 12 can make the wastewater flow in a spiral shape inside the conical disk 11, enhancing the separation effect of the gravel. When the first driving gear ring 21 rotates, it drives the first bevel gear 24 to rotate, and then the first lead screw 23 rotates. The adjusting plate 25 on the first lead screw 23 will adjust the radial distance as the first lead screw 23 rotates, so that conical disks 11 of different sizes can be installed on the surface of the column 31. When the second lead screw 33 rotates, the moving block 34 will move up and down along the second lead screw 33. The sleeve plate 35 fixed on the moving block 34 is used to fit with the adjusting plate 25, and the two are fixedly connected by bolts, so as to realize the up and down displacement of the filtering assembly 1. The driven gear 51 is fixed on the top of the second lead screw 33 and meshes with the third driving gear ring 52. The third driving gear ring 52 is connected to the top of the column 31 through a bearing. Rotating the third driving gear ring 52 can drive the driven gear 51 to rotate, and then drive the second lead screw 33 to rotate, so as to synchronously adjust the distance between the conical disks 11 evenly distributed at equal distances up and down.

[0040] Embodiment 2

[0041] Please refer to Figures 1-11 , on the basis of Embodiment 1, one end of the spiral guide plate 12 is fixedly connected with a water inlet trough pipe, and the water inlet trough pipe penetrates to the outside of the conical disk 11. One end of the sand discharge pipe 12 located inside the conical disk 11 and close to one side of the bottom of the inner cavity of the conical disk 11 is provided with a waste discharge port. Limit holes are opened at both the front and rear ends of the inner cavity of the adjusting plate 25. The inner cavity of the limit hole is slidably connected with a limit rod 26, and the other end of the limit rod 26 is fixedly connected with the surface of the connecting seat 22. Handles are fixedly connected to the bottom of the driving gear ring and the surface of the third driving gear ring 52. Installation holes for installing the screw pipe 44 and the second driving gear ring 46 are opened on the surface of the column 31, and the installation holes are designed to be communicated with the moving groove 32. Five groups of the second lead screws 33 are arranged at equal distances around the circumference, and each group has four evenly distributed up and down. The top of the second lead screw 33 at the top penetrates to the top of the column 31 and is fixedly connected with the bottom of the driven gear 51. The top of the second lead screw 33 at the bottom and both ends of other lead screws are fixedly connected with the second bevel gear 41. The third lead screw 43 adopts a two-end design. One end connected to the screw pipe 44 adopts a threaded design, and one end connected to the third bevel gear 42 adopts a hexagonal prism design. Limit grooves 47 are opened at both the front and rear ends of the inner cavity of the installation hole. The inner cavity of the limit groove 47 is slidably connected with a limit block 48, and the other side of the limit block 48 is fixedly connected with the surface of the hexagonal prism. Installation holes for installing bolts are opened on the surfaces of the connecting seat 22 and the sleeve plate 35. A threaded hole for cooperating with the second lead screw 33 is opened in the inner cavity of the moving block 34.

[0042] Specifically: The water inlet trough pipe connected to one end of the spiral guide plate 12 penetrates to the outside of the conical disc 11, facilitating the entry of wastewater into the conical disc 11, ensuring that the wastewater can flow smoothly under the guidance of the spiral guide plate 12, enhancing the separation effect. The sand discharge pipe 12 is provided with a waste discharge port at one end near the bottom inside the conical disc 11, which is conducive to the smooth discharge of the separated gravel from the conical disc 11, avoiding the accumulation of gravel in the conical disc 11 and ensuring the normal operation of the equipment. The limit hole in the inner cavity of the adjusting plate 25 cooperates with the limit rod 26, which can limit the moving direction of the adjusting plate 25 and prevent it from shifting during movement, ensuring the accuracy of adjustment. The handle on the bottom of the driving gear ring and the surface of the driving gear ring three 52 facilitates the operator to manually rotate the driving gear ring and is convenient for adjusting the equipment. The installation holes opened on the surface of the column 31 and communicating with the moving groove 32 are used for installing the screw pipe 44 and the driving gear ring two 46, facilitating the installation and transmission of each component and enabling the linkage assembly 4 to work normally. The grouping and distribution design of the second screw rod 33 can achieve the synchronous rotation of multiple second screw rods 33, thereby driving multiple filtering components 1 to move up and down synchronously, improving the adjustment efficiency. The two-end design of the third screw rod 43 and the cooperation between the limit block 48 and the limit groove 47 can ensure that the third screw rod 43 can not only achieve threaded transmission with the screw pipe 44 during rotation but also ensure the accuracy of its moving direction. The installation holes on the surfaces of the connecting seat 22 and the sleeve plate 35 facilitate the fixed connection of the adjusting plate 25 and the sleeve plate 35 through bolts, ensuring the connection stability between the filtering component 1 and the up and down displacement component 3. The threaded hole in the inner cavity of the moving block 34 cooperates with the second screw rod 33, enabling the rotation of the second screw rod 33 to be accurately converted into the up and down movement of the moving block 34, realizing the up and down displacement adjustment of the filtering component 1.

[0043] The working principle of the present invention is as follows: Wastewater enters the conical disk 11 through the inlet tank pipe and forms a spiral flow under the guidance of the spiral guide plate 12, so that the grit is separated from the wastewater under the action of centrifugal force. The separated grit is discharged through the waste outlet of the sand discharge pipe 12. When it is necessary to adjust the position of the filter assembly 1, the operator rotates the driving gear ring three 52, the driving gear ring three 52 drives the driven gear 51 to rotate, the driven gear 51 drives the lead screw two 33 to rotate, and the rotation of the lead screw two 33 causes the moving block 34 to move up and down along the lead screw two 33. The moving block 34 drives the filter assembly 1 to move up and down through the sleeve plate 35 and the adjusting plate 25. At the same time, the rotation of the lead screw two 33 drives the driving gear ring two 46 to rotate through the gear transmission in the linkage assembly 4, realizing the synchronous adjustment of multiple filter assemblies 1 to meet different wastewater treatment requirements. The driving motor 63 drives the transmission shaft 62 to rotate through the driving gear 64 and the follower gear 65. The bevel gear five 68 and the bevel gear six 69 are linked to make the stirring rod 610 stir the grit at the bottom of the conical disk 11 at a high speed to break the coagulation blocks. When the lead screw four 66 rotates, the threaded block 67 moves up and down along the lead screw four 66 to adjust the working height of the bevel gear five 68 to mesh with the bevel gear six. The fluidized grit is sucked into the sand suction pipe 61 through the sand inlet 612 and discharged through an external suction system, completing the entire separation process.

[0044] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor limit the invention to the specific embodiments described. The present specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention.

Claims

1. A grit separation device for wastewater treatment, comprising a filtration component (1), a connection component (2), an up-and-down displacement component (3), a linkage component (4) and a drive component (5), characterized in that: The surface of the filtering component (1) is fixedly connected with a connecting component (2), the other end of the connecting component (2) is fixedly connected with an up-and-down displacement component (3), the surface of the up-and-down displacement component (3) is fixedly connected with a linkage component (4), the top of the up-and-down displacement component (3) is fixedly connected with a driving component (5), and the inner cavity of the filtering component (1) is fixedly connected with a sand pumping component (6); The filtering component (1) includes conical disks (11) distributed equidistantly up and down, and a spiral guide plate (12) is fixedly connected to the inner cavity of the conical disk (11); The connecting component (2) includes a driving gear ring one (21) fixedly connected to the surface of the conical disk (11) through a bearing and a connecting seat (22) fixedly connected to the surface of the conical disk (11). A lead screw one (23) is fixedly connected to the surface of the connecting seat (22) through a bearing. A bevel gear one (24) is fixedly connected to the surface of the lead screw one (23). The bevel gear one (24) meshes with the driving gear ring one (21). An adjusting plate (25) is threadedly connected to the surface of the lead screw one (23); The up-and-down displacement component (3) includes a column (31) arranged outside the filtering component (1). A moving groove (32) is formed in the inner cavity of the column (31). A lead screw two (33) is fixedly connected to the moving groove (32) through a bearing. A moving block (34) is threadedly connected to the surface of the lead screw two (33). A sleeve plate (35) is fixedly connected to the moving block (34). The adjusting plate (25) is fitted into the inner cavity of the sleeve plate (35) and fixedly connected through a bolt; The linkage component (4) includes a bevel gear two (41) fixedly connected to the surface of the lead screw two (33). A bevel gear three (42) meshes with the surface of the bevel gear two (41). A lead screw three (43) is fixedly connected to the surface of the bevel gear three (42) through a bearing. A screw tube (44) is threadedly connected to the surface of the lead screw three (43). The screw tube (44) is fixedly connected to the inner wall of the column (31) through a bearing. A bevel gear four (45) is fixedly connected to the surface of the screw tube (44). A driving gear ring two (46) meshes with the top of the bevel gear four (45). The driving gear ring two (46) is fixedly connected to the inner wall of the column (31) through a bearing; The driving component (5) includes a driven gear (51) fixedly connected to the top of the lead screw two (33). A driving gear ring three (52) meshes with the surface of the driven gear (51). The driving gear ring three (52) is fixedly connected to the top of the column (31) through a bearing; The sand pumping assembly (6) includes a sand pumping pipe (61) and a transmission shaft (62) fixedly connected to the inner cavity of the sand pumping pipe (61) through bearings. A driving motor (63) is fixedly connected to the top of the sand pumping pipe (61). The output shaft of the driving motor (63) is fixedly connected to a driving gear (64). A follower gear (65) is meshed with the surface of the driving gear (64). The follower gear (65) is fixedly connected to the surface of the transmission shaft (62). A lead screw four (66) is fixedly connected to the inner cavity of the transmission shaft (62) through bearings. A threaded block (67) is threadedly connected to the surface of the lead screw four (66). A connecting rod is fixedly connected to the surface of the threaded block (67). The other end of the connecting rod is fixedly connected to a bevel gear five (68). The bevel gear five (68) is slidably connected to the surface of the transmission shaft (62). A bevel gear six (69) is meshed with the surface of the bevel gear five (68). A stirring rod (610) is fixedly connected to the surface of the bevel gear six (69). The surface of the stirring rod (610) is fixedly connected to the inner wall of the conical disc through a bearing seat. A sliding groove (611) for the movement of the connecting rod is opened on the surface of the transmission shaft (62). A sand inlet (612) for the passage of the stirring rod (610) is opened on the surface of the sand pumping pipe (61). A runner is fixedly connected to the top of the lead screw four (66).

2. The grit separation device for wastewater treatment according to claim 1, characterized in that: One end of the spiral guide plate (12) is fixedly connected to a water inlet trough pipe, and the water inlet trough pipe penetrates to the outside of the conical disc (11).

3. A grit separation device for wastewater treatment according to claim 1, characterized in that: One end of the sand discharge pipe (12) located in the inner cavity of the conical disc (11) and close to one side of the bottom of the inner cavity of the conical disc (11) is provided with a waste discharge port.

4. A grit separation device for wastewater treatment according to claim 1, characterized in that: Limit holes are opened at both the front and rear ends of the inner cavity of the adjusting plate (25). A limit rod (26) is slidably connected to the inner cavity of the limit hole. The other end of the limit rod (26) is fixedly connected to the surface of the connecting seat (22).

5. A grit separation device for wastewater treatment according to claim 1, characterized in that: Handles are fixedly connected to the bottom of the driving gear ring and the surface of the driving gear ring three (52).

6. The grit separation device for wastewater treatment according to claim 1, characterized in that: Mounting holes for mounting the screw pipe (44) and the driving gear ring two (46) are opened on the surface of the column (31), and the mounting holes are designed to be communicated with the moving groove (32).

7. A grit separation device for wastewater treatment according to claim 1, characterized in that: Five groups of lead screws two (33) are arranged at equal circumferential distances. Four are equally spaced up and down in each group. The top of the lead screw two (33) at the top penetrates to the top of the column (31) and is fixedly connected to the bottom of the driven gear (51). The top of the lead screw two (33) at the bottom and both ends of other lead screws are fixedly connected to the bevel gear two (41).

8. A grit separation device for wastewater treatment according to claim 6, characterized in that: The lead screw three (43) adopts a two-end design. One end connected to the screw pipe (44) adopts a threaded design, and one end connected to the bevel gear three (42) adopts a hexagonal prism design. Limit grooves (47) are opened at both the front and rear ends of the inner cavity of the mounting hole. A limit block (48) is slidably connected to the inner cavity of the limit groove (47). The other side of the limit block (48) is fixedly connected to the surface of the hexagonal prism.

9. A grit separation device for wastewater treatment according to claim 1, characterized in that: Mounting holes for mounting bolts are opened on the surfaces of the connecting seat (22) and the sleeve plate (35).

10. A grit separation device for wastewater treatment according to claim 1, characterized in that: A threaded hole for cooperating with the lead screw two (33) is opened in the inner cavity of the moving block (34).

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