A wastewater treatment device for cement production

Abstract

This invention relates to the field of wastewater treatment technology, specifically disclosing a wastewater treatment device for cement production, comprising: a cylindrical body and a drive pipe rotating within the cylindrical body; an aeration module is mounted on the drive pipe, the aeration module including an aeration unit and a transmission unit; the aeration unit includes a mounting base sliding axially on the drive pipe, and multiple housings rotatably mounted on the mounting base circumferentially, each housing having multiple aeration pipes. The beneficial effects of this invention are: in the initial stage, the housing is vertical with the aeration pipes facing downwards; in the intermediate stage, the housing rotates to a horizontal state, and the aeration pipes spray air horizontally, which facilitates gas diffusion and ensures uniform gas-wastewater reaction; near the end of the reaction, the housing can continuously swing up and down, shaking off flocculent matter deposited on the upper surface of the housing; the state of the housing can be continuously adjusted according to different stages, improving the wastewater treatment speed and purification effect.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and more specifically to a wastewater treatment device for cement production. Background Technology

[0002] Wastewater treatment mainly involves using a series of wastewater treatment equipment such as sedimentation tanks, flocculation tanks, and filtration tanks to purify wastewater. Wastewater with high sludge content and high suspended solids is usually first treated by sedimentation to remove the sludge. Then, flocculation, filtration, and microbial treatment are used to remove the suspended solids in the wastewater, ultimately achieving the effect of wastewater purification.

[0003] Chinese Patent CN118343960B discloses a water purification device with high mud content and high suspended solids, including a wastewater treatment system. The wastewater treatment system includes a flocculation sedimentation tank. A liquid guide pipe is installed inside the flocculation sedimentation tank to introduce liquid flocculant into the tank. Several liquid guide plates are arranged on the surface of the liquid guide pipe, and multiple branch liquid pipes are circumferentially installed on the surface of each liquid guide plate. Multiple drain pipes are installed on the upper surface of each branch liquid pipe. This high mud content and high suspended solids water purification device, through the combined design of the liquid guide pipe, branch liquid pipes, drain pipes, gas guide pipes, branch gas pipes, and gas guide components in the flocculation sedimentation tank, can introduce liquid flocculant and gas to multiple liquid levels within the flocculation sedimentation tank. Simultaneously, the design of the gas guide components and drain pipes facilitates gas-assisted diffusion of the liquid flocculant into the wastewater, resulting in high flocculant diffusion efficiency and uniform diffusion.

[0004] Wastewater treatment requires aeration. However, wastewater from cement processing contains a large amount of sand and gravel particles. In the above technical solution, the air vents are located above the pipeline. When the air supply is stopped, the sand and gravel particles settle down and block the air vents, affecting the normal air output. Moreover, the sand and gravel particles are of uneven size and stratify quickly. The multi-layered air output method will cause the flocculated material below to be dispersed and crushed, which is not conducive to the separation of impurities. Summary of the Invention

[0005] This invention provides a wastewater treatment device for cement production, aiming to solve the technical problems in related technologies where the vents are located above the pipeline, and when the air supply is stopped, the sedimentation of sand and gravel particles will block the vents, affecting the normal air output. In addition, the sand and gravel particles are of uneven size and stratify quickly. The multi-layered air output will cause the flocculated material below to be dispersed and crushed, which is not conducive to the separation of impurities.

[0006] A wastewater treatment device for cement production according to the present invention includes: a cylindrical body and a drive pipe rotating within the cylindrical body. An aeration module is provided on the drive pipe, and the aeration module includes an aeration unit and a transmission unit. The aeration unit includes a mounting seat that slides axially on the drive pipe. Multiple housings are rotatably mounted on the mounting seat circumferentially. Each housing has multiple aeration pipes, and the rotation axis of the mounting seat is perpendicular to the axis of the drive pipe. The transmission unit includes a drive bar vertically fixed on the drive pipe. The drive bar has a transmission section and a swing section. The swing section is composed of multiple spaced transmission parts. A drive wheel that drives the transmission section and transmission parts is fixedly mounted on the housing so that when the mounting seat is raised or lowered, the drive wheel can drive the housing to rotate. The drive wheel is provided with an elastic element connected to the mounting seat. The mounting seat has a rotation stroke and a swing stroke. When in the rotation stroke, the housing can switch between a vertical and a horizontal state. In the vertical state, the aeration pipes are located at the bottom of the housing. In the horizontal state, the aeration pipes are located on the side of the housing. When in the swing stroke, the housing can swing up and down.

[0007] In the initial stage, the shell is located near the bottom of the cylinder and is in a vertical position with the aeration pipe facing downwards. As the shell rotates, it not only agitates the wastewater but also ensures that the gas blown from the aeration pipe mixes evenly with the wastewater, guaranteeing a thorough reaction between the gas, reactants, and wastewater. In the intermediate stage, large suspended particles have flocculated and settled at the bottom of the cylinder. As the shell rises, the drive wheel rotates the shell until it reaches a horizontal position. Then, the drive pipe rotates the horizontally positioned shell, avoiding interference with the liquid and ensuring the flocculation and sedimentation reaction. Simultaneously, the aeration pipe maintains a continuous air supply. At this point, the horizontal air jet from the aeration pipe facilitates gas diffusion and ensures uniform gas-sewage reaction. Near the end of the reaction, the cylinder continues to raise the mounting base, and the drive wheel enters the swing section of the drive bar, causing the shell to swing up and down continuously. This shakes off the flocculent material deposited on the upper surface of the shell, ensuring the effectiveness of wastewater treatment.

[0008] Preferably, the shell is a right-angled triangular structure with two mutually perpendicular planes and an inclined plane. One of the planes of the shell is rotatably mounted on the mounting base via a rotating shaft, and the aeration pipe is disposed on the other plane of the shell.

[0009] The shell is a right-angled triangle, which allows for continuous adjustment of the shell's state according to different periods. Its inclined surface can match the conical surface at the bottom of the cylinder, which helps to discharge the bottom sediment.

[0010] Preferably, an installation plate is elastically slidably connected to the inner side of the housing along a direction perpendicular to its inclined plane. Multiple toothed blocks are fixedly installed on the installation plate. Multiple through holes corresponding to the toothed blocks are opened on the inclined plane of the housing. The toothed blocks extend to the outer side of the housing through the through holes. Drainage holes are opened between two adjacent through holes on the inclined plane. A plug block is provided on the installation plate to block the drainage holes. Water permeable holes are also provided on the housing.

[0011] As the toothed block rotates, it scrapes the impurities deposited on the conical surface at the bottom of the cylinder. At the same time, the liquid stored inside the shell is discharged from the drain hole, which can enhance the fluidity of the deposited impurities and help them be discharged from the discharge port. This can effectively improve the discharge of deposited impurities and avoid blockage.

[0012] Preferably, the drive bar has teeth on both the transmission section and the transmission part, and the drive wheel has a gear structure that meshes with the drive bar's transmission section and transmission part.

[0013] The drive bar can rotate the drive wheel during the lifting and lowering process, thereby adjusting the state of the housing.

[0014] Preferably, a cylinder is installed on the cylinder body, a lifting plate is fixedly installed on the cylinder telescopic part, a rotating seat that slides axially with the drive tube is rotatably installed on the lifting plate, and both the lifting plate and the rotating seat are coaxially arranged with the drive tube. A lifting rod is fixedly installed at the bottom of the rotating seat, a base plate is fixedly installed at the lower end of the lifting rod, and a mounting seat is fixedly installed on the base plate.

[0015] Preferably, an L-shaped air supply pipe is fixedly installed on the cylinder. The upper end of the vertical section of the air supply pipe extends to the top of the cylinder and is connected to an air supply source. An inner ring is fixedly installed on the outside of the drive pipe, and an outer ring is rotatably installed on the outside of the inner ring. The inner ring can rotate around its axis inside the outer ring. Both the inner ring and the outer ring have annular cavities inside, and the cavities between the two are interconnected. Multiple connecting pipes are connected along the circumference of the inner ring, and each connecting pipe is connected to an aeration pipe in one of the shells.

[0016] It can continuously supply gas to the aeration pipe as the shell rises and falls.

[0017] Preferably, the air supply pipe is made of metal and the connecting pipe is made of rubber.

[0018] Preferably, the elastic element is a torsion spring or a coil spring.

[0019] Preferably, the permeable holes are equipped with a filter screen and a one-way valve.

[0020] Preferably, the cylinder has an inlet pipe and an outlet pipe connected to it on its side wall, the bottom of the cylinder has a conical structure, and the bottom has a discharge port.

[0021] The beneficial effects of the present invention using the above technical solution are as follows: In the initial stage, the shell is located near the lower part of the cylinder and is in a vertical state with the aeration pipe facing downwards. As the shell rotates, it not only stirs the sewage but also ensures that the gas blown from the aeration pipe is evenly mixed with the sewage, ensuring that the gas and reactants react fully with the sewage. In the intermediate stage, large suspended particles have flocculated and settled at the bottom of the cylinder. As the shell rises, the drive wheel drives the shell to rotate until it reaches a horizontal state. Then, the drive pipe drives the horizontally positioned shell to rotate. The rotating shell, in its horizontal position, avoids interfering with the liquid, ensuring the flocculation and sedimentation reaction. Simultaneously, the aeration pipe maintains a continuous air supply. The horizontal jetting from the aeration pipe facilitates gas diffusion, ensuring uniform gas-sewage reaction. Near the end of the reaction, the cylinder continues to raise the mounting base, and the drive wheel enters the swing section of the drive bar, causing the shell to swing up and down continuously, shaking off the flocculent material deposited on the upper surface of the shell, ensuring effective wastewater treatment. The shell's state can be continuously adjusted according to different stages, improving the speed and purification effect of wastewater treatment.

[0022] The shell descends and rotates, allowing the inclined plane to reach the conical surface at the bottom of the cylinder. The toothed block first abuts against the conical surface at the bottom of the cylinder, forcing the toothed block to retract partially into the shell. The mounting plate drives the block to retract inward, thereby opening the drain hole. As the toothed block rotates, it scrapes the impurities deposited on the conical surface at the bottom of the cylinder. At the same time, the liquid stored in the shell is discharged from the drain hole, which can enhance the fluidity of the deposited impurities and assist the impurities to be discharged from the discharge port. This can effectively improve the discharge of deposited impurities and avoid blockage. Attached Figure Description

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

[0024] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0025] Figure 3 This is a schematic diagram of the drive tube of the present invention.

[0026] Figure 4 This is an exploded view of the drive tube and housing of the present invention.

[0027] Figure 5 This is a schematic diagram of the mounting base of the present invention.

[0028] Figure 6 This is a cross-sectional view of the mounting base of the present invention.

[0029] Figure 7 This is a top view of the mounting base of the present invention.

[0030] Figure 8 This is a schematic diagram of the drive bar structure of the present invention.

[0031] Figure 9 This is a cross-sectional view of the housing of the present invention.

[0032] Figure 10 For the present invention Figure 9 Enlarged view of point A in the middle.

[0033] Figure 11 This is a schematic diagram of the shell swinging state of the present invention.

[0034] Figure 12 This is a schematic diagram showing the state when the toothed block of the present invention is in contact with the bottom of the cylinder.

[0035] Figure label:

[0036] 10. Cylinder; 11. Feed pipe; 12. Discharge port; 13. Liquid outlet pipe; 20. Protective shell; 21. Drive motor; 22. Drive pipe; 23. Drive bar; 24. Groove; 25. Clearance perforation; 26. Transmission unit; 30. Cylinder; 31. Lifting plate; 32. Rotary seat; 33. Lifting rod; 34. Base plate; 40. Mounting seat; 41. Guide groove; 50. Shell; 51. Drive wheel; 52. Elastic element; 54. Aeration pipe; 55. Connecting pipe; 56. Inner ring; 57. Outer ring; 58. Air supply pipe; 60. Bearing plate; 61. Spring; 62. Mounting plate; 63. Tooth block; 64. Drain hole; 65. Block; 66. Water permeable hole. Detailed Implementation

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0038] like Figures 1 to 11 As shown, a specific embodiment of a wastewater treatment device for cement production according to the present invention includes a treatment module, a support module, an aeration module, and a scraping module.

[0039] The treatment module is used to load sewage and facilitate its treatment. The carrier module is installed on the treatment module to install the aeration module and drive the aeration module to rotate. The aeration module provides gas to aerate the sewage. The scraper module scrapes the sediment accumulated at the bottom of the carrier module to facilitate its discharge.

[0040] like Figure 1 As shown, the processing module includes a cylinder 10, a feed pipe 11, and a liquid outlet pipe 13.

[0041] The cylinder 10 has a cylindrical structure with a conical bottom and multiple support legs for support. A feed pipe 11 is installed on the upper part of the cylinder 10's peripheral wall, which is connected to the inside of the cylinder 10 for adding wastewater and reactants.

[0042] A liquid outlet pipe 13 is installed on the outer wall of the cylinder 10 near the bottom. The liquid outlet pipe 13 is connected to the inside of the cylinder 10 and is used to discharge the treated wastewater. A downward-opening discharge port 12 is provided at the bottom of the cylinder 10, and a valve is installed at the discharge port 12 to control its opening and closing. When the valve is open, it is convenient to discharge the sediment at the bottom of the cylinder 10.

[0043] The load-bearing module includes a protective shell 20, a drive motor 21, and a drive tube 22.

[0044] A circular protective shell 20 is fixedly mounted on the upper surface of the cylinder 10, and the protective shell 20 is coaxially arranged with the cylinder 10. A drive motor 21 is fixedly mounted on the upper surface of the protective shell 20, and a drive tube 22 is rotatably mounted inside the protective shell 20. The drive tube 22 is a hollow cylindrical structure and is coaxially arranged with the protective shell 20. The upper end of the drive tube 22 is connected to the drive motor 21, so that the drive motor 21 can drive the drive tube 22 to rotate.

[0045] The upper surface of the cylinder 10 has a circular opening for the drive tube 22 to pass through, and the lower end of the drive tube 22 extends into the interior of the cylinder 10 through the opening.

[0046] The aeration module is mounted on the drive pipe 22, which enables the drive pipe 22 to drive the aeration module to rotate inside the cylinder 10 while providing gas to the sewage, thus aerating the sewage.

[0047] like Figures 2 to 8 As shown, the aeration module includes a lifting drive unit and an aeration unit. The lifting drive unit is used to drive the aeration unit to continuously lift and lower, thereby ensuring that the sewage in the cylinder 10 can fully contact the gas and improve the quality of aeration.

[0048] like Figure 3 and Figure 4 As shown, the lifting drive unit includes a cylinder 30, a lifting plate 31, a rotary seat 32, a lifting rod 33, and a base plate 34.

[0049] A cylinder 30 is fixedly installed on the upper surface of the protective shell 20. The telescopic part of the cylinder 30 extends downward into the interior of the protective shell 20. In this embodiment, two cylinders 30 are provided and are arranged symmetrically front and back. A lifting plate 31 is fixedly installed on the telescopic part of the cylinder 30. The lifting plate 31 has a ring structure, and the drive tube 22 passes through the inside of the lifting plate 31. The drive tube 22 and the lifting plate 31 are coaxially arranged.

[0050] A rotating base 32 is rotatably mounted on the bottom of the lifting plate 31. The rotating base 32 is also a ring structure, and the drive tube 22 passes through the inside of the rotating base 32. The rotating base 32 can rotate around its own axis on the lifting plate 31. The rotating base 32 and the drive tube 22 are slidably engaged axially. In this embodiment, the rotating base 32 and the drive tube 22 are slidably engaged by a slider and a groove (not shown in the figure). That is, a long groove can be provided on the outer wall of the drive tube 22, and the length of the groove is arranged vertically. The rotating base 32 is provided with a slider that is slidably engaged with the groove. One end of the slider extends into the groove to stop and engage with the side wall of the groove. When the drive tube 22 rotates, it can drive the rotating base 32 to rotate together.

[0051] The rotating seat 32 can rotate at the bottom of the lifting plate 31. The cylinder 30 will drive the lifting plate 31 to rise and fall, and the lifting plate 31 will drive the rotating seat 32 to rise and fall synchronously. Finally, the rotating seat 32 is driven to rotate by the drive tube 22, and the rotating seat 32 can also rise and fall along the axis of the drive tube 22.

[0052] A lifting rod 33 is fixedly installed at both the front and rear of the bottom of the rotary seat 32. The axis of the lifting rod 33 is arranged vertically, that is, the axis of the lifting rod 33 is parallel to the axis of the drive tube 22. A base plate 34 is fixedly installed at the bottom of the drive tube 22. The base plate 34 is also a ring structure, and the drive tube 22 passes through the inside of the base plate 34.

[0053] like Figures 3 to 8 As shown, the aeration unit includes a mounting base 40, a housing 50, a drive wheel 51, an elastic element 52, a drive bar 23, an aeration pipe 54, and an air supply assembly.

[0054] Mounting base 40 is fixedly installed on the bottom of base plate 34. At the same time, mounting base 40 is also in the form of a ring structure, that is, drive tube 22 also passes through the inside of mounting base 40.

[0055] like Figure 5 As shown, the mounting base 40 is provided with multiple guide grooves 41 along its circumference. In this embodiment, the number of guide grooves 41 is 4. In other embodiments, the number of guide grooves 41 is not limited to this, and can also be 6, 8 or even more. The guide grooves 41 have a square structure and extend vertically through the mounting base 40. Each guide groove 41 has an opening on its surface near the inner side of the mounting base 40, which allows the guide groove 41 to communicate with the inner side of the mounting base 40.

[0056] Multiple housings 50 are rotatably mounted on the outer peripheral wall of the mounting base 40. In this embodiment, the number of housings 50 is 4. In other embodiments, the number of housings 50 is not limited to this, and can be 6, 8 or even more. Each housing 50 is correspondingly set with the guide groove 41.

[0057] In this embodiment, the shell 50 has a right-angled triangular structure and a hollow interior. The shell 50 has two mutually perpendicular planes and an inclined plane, with the two ends of the inclined plane connected to the two planes respectively. A rotating shaft is fixedly installed on one of the planes of the shell 50, allowing the shell 50 to rotate and be mounted on the mounting base 40. The axis of the rotating shaft is perpendicular to the axis of the mounting base 40. Multiple aeration pipes 54 are horizontally mounted at intervals on the other plane of the shell 50. Each aeration pipe 54 is perpendicular to its plane, and its air outlet faces outwards from the shell 50. All aeration pipes 54 are interconnected, and the air supply assembly is connected to the aeration pipes 54, enabling the air supply assembly to provide gas to the aeration pipes 54, allowing the gas to reach the wastewater from the aeration pipes 54. It is particularly important to note that each aeration pipe 54 is equipped with a one-way valve, ensuring that gas can only be ejected from the aeration pipe 54 and preventing wastewater in the cylinder 10 from flowing back into the aeration pipe 54.

[0058] One end of the rotating shaft on the housing 50, away from the housing 50, passes into the guide groove 41. A drive wheel 51 is fixedly mounted on the end of the rotating shaft located within the guide groove 41. The drive wheel 51 is coaxially arranged with the rotating shaft on the housing 50, and the inner side of the drive wheel 51 has a receiving cavity. An elastic element 52 is installed within the receiving cavity. In this embodiment, the elastic element 52 is a coil spring or a torsion spring, and one end of the elastic element 52 is connected to the drive wheel 51, while the other end is connected to the mounting base 40. It is particularly noteworthy that the drive wheel 51 in this embodiment is made of rubber.

[0059] Four drive bars 23 are provided on the outer peripheral wall of the drive tube 22 along its axial direction, and the drive bars 23 are all arranged vertically. Each drive bar 23 is respectively provided in a one-to-one correspondence with the guide groove 41. The drive bars 23 extend through the openings on the guide groove 41 into the interior of the guide groove 41.

[0060] The drive bar 23 abuts against and is engaged with the drive wheel 51. As the drive wheel 51 moves up and down with the mounting base 40, the drive wheel 51 can rotate, thereby driving the housing 50 to rotate.

[0061] like Figure 8As shown, the drive bar 23 has a transmission section and a swing section, with the swing section located above the transmission section and the two sections connected to each other. The surface of the transmission section is flat, allowing the drive wheel 51 to rotate stably when it is located in the transmission section. The swing section consists of multiple vertically spaced transmission parts 26, with a groove 24 formed between adjacent transmission parts 26. That is, when the drive wheel 51 reaches the swing section, it rotates during contact with the transmission part 26. As the drive wheel 51 moves, when it reaches the groove 24, it loses its contact point, causing the elastic element 52 inside the drive wheel 51 to rotate in the opposite direction. When the drive wheel 51 passes the groove 24 and reaches another transmission part 26, it re-engages with the transmission part 26, causing it to rotate again, thus repeating the cycle. When the drive wheel 51 continuously alternates between forward and reverse rotation, the housing 50 continuously swings. The swing state and function of the housing 50 will be explained in detail later.

[0062] It is particularly important to note that the transmission part 26 and the surface of the transmission section that abuts against the drive wheel 51 are on the same horizontal plane, and the transmission part 26 is located at the lowest position of the swing section. That is, the transmission section and the transmission part 26 in the swing section are connected.

[0063] like Figure 3 and Figure 6 As shown, the gas supply assembly includes a connecting pipe 55, an inner ring 56, an outer ring 57, and a gas supply pipe 58.

[0064] An air supply pipe 58 is fixedly installed on the cylinder 10. The air supply pipe 58 has an L-shaped structure and is made of metal. The upper end of the vertical section of the air supply pipe 58 extends to the top of the cylinder 10 and is connected to an air supply source.

[0065] An inner ring 56 is fixedly mounted on the outer side of the drive tube 22. The lifting rod 33 passes through the inner ring 56 vertically and slides in cooperation with it. The inner ring 56 is located at the upper end of the drive bar 23. An outer ring 57 is rotatably mounted on the outer side of the inner ring 56, and the inner ring 56 can rotate around its axis inside the outer ring 57. It is worth noting that both the inner ring 56 and the outer ring 57 are annular structures, and both have annular cavities (not shown in the figure). The cavities on the inner ring 56 and the outer ring 57 are interconnected, meaning that the inner ring 56 and the outer ring 57 are in a sealed rotational fit. This structure is prior art and will not be described in detail here.

[0066] The outer ring 57 is fixedly connected to the air supply pipe 58, and the air supply pipe 58 is connected to the cavity inside the outer ring 57. Therefore, since the outer ring 57 is fixed to the air supply pipe 58, the outer ring 57 remains stationary, and the drive pipe 22 can drive the inner ring 56 to rotate continuously. Simultaneously, gas can enter the cavity of the outer ring 57 through the air supply pipe 58. Because the cavities on the inner ring 56 and the outer ring 57 are interconnected, gas can directly enter the cavity of the inner ring 56.

[0067] Multiple connecting pipes 55 are connected circumferentially along the inner side of the inner ring 56. The connecting pipes 55 are flexible rubber tubes and are located inside the drive pipe 22. Each connecting pipe 55 is connected to an aeration pipe 54 inside one of the housings 50.

[0068] An elongated clearance perforation 25 is provided on the outer wall of the drive pipe 22. The end of the connecting pipe 55 away from the inner ring 56 passes through the clearance perforation 25. Simultaneously, both the drive wheel 51 and the shaft of the housing 50 have through holes for the connecting pipe 55 to pass through, and these through holes are coaxially aligned with the drive wheel 51 and the housing 50. The end of the connecting pipe 55 away from the inner ring 56 passes through the shaft of the drive wheel 51 and the housing 50 and enters the interior of the housing 50, communicating with the aeration pipe 54, thereby allowing gas to enter the sewage inside the cylinder 10 from the aeration pipe 54. It is particularly important to note that the connecting pipe 55 has sufficient length to ensure the raising and lowering of the housing 50.

[0069] In the initial state, that is, in the initial stage of the reaction, the shell 50 is located inside the cylinder 10 near the lower part, and the shell 50 is in a vertical state, with the aeration pipe 54 facing downwards (e.g., Figure 2 At this point, the drive wheel 51 is located on the transmission section of the drive bar 23, and the elastic element 52 inside the drive wheel 51 has a certain elastic force, that is, it is in a stored state. It is particularly important to emphasize that the drive wheel 51 and the drive bar 23 are in a transmission engagement, and the friction between them is sufficiently large, thus ensuring that the drive wheel 51 does not rotate during the rotation of the shell 50 to agitate the sewage. The drive motor 21 drives all the shells 50 to rotate continuously through the drive pipe 22 to agitate the sewage inside the cylinder 10. Simultaneously, gas is continuously blown into the sewage through the aeration pipe 54. As the shell 50 rotates, it not only agitates the sewage but also ensures that the gas blown from the aeration pipe 54 is evenly mixed with the sewage, ensuring that the gas and reactants react fully with the sewage.

[0070] During the reaction, silt and flocculent matter will continuously settle downwards. Since the aeration pipe 54 is located at the bottom of the shell 50 and the air outlet faces downwards, the descending silt and flocculent matter will not enter the air outlet of the aeration pipe 54, thus avoiding blockage.

[0071] After a period of reaction, when the reaction reaches the intermediate stage, large suspended particles have flocculated and settled at the bottom of the cylinder 10. At this point, the liquid should not be stirred vigorously to prevent the flocculated material from being dispersed. Aeration should continue. Then, cylinder 30 starts to raise lifting plate 31, which in turn raises mounting base 40 and shell 50. During the raising of shell 50, relative movement occurs between drive wheel 51 and drive bar 23, causing drive wheel 51 to rotate. Drive wheel 51 drives shell 50 to rotate, and during this process, the elastic force of elastic element 52 inside drive wheel 51 gradually releases. When drive wheel 51 reaches the upper end of the transmission section of drive bar 23, shell 50 rotates to a horizontal position, that is, shell 50 has rotated 90 degrees, and the elastic force of elastic element 52 has just been released. Then, drive pipe 22 drives the horizontally positioned shell 50 to rotate. The horizontal rotation of shell 50 avoids interference with the liquid, thus ensuring the flocculation and sedimentation reaction of the liquid. Meanwhile, the aeration pipe 54 can continuously maintain an air supply.

[0072] Near the end of the reaction, flocculent material may be present on the upper surface of the horizontally positioned housing 50. Then, cylinder 30 continues to raise the mounting base 40. At this point, drive wheel 51 enters the swing section of drive bar 23. Drive wheel 51 first contacts transmission part 26, and as the mounting base 40 rises, drive wheel 51 begins to rotate. Elastic element 52 begins to store force, and housing 50 gradually rotates to a tilted state, with the tilt angle between 20-30 degrees (e.g., ...). Figure 11 Immediately afterward, the drive wheel 51 reaches the groove 24 of the drive bar 23. At this point, the elastic force of the elastic element 52 is released, forcing the drive wheel 51 and the housing 50 to rotate in the opposite direction until they return to a horizontal state. That is, the elastic force of the elastic element 52 is just enough to make the housing 50 rotate to a horizontal state. Thus, as the drive wheel 51 moves upward through the swing section of the drive bar 23, the housing 50 continuously switches between a horizontal and an inclined state, thereby shaking off the flocculent material deposited on the upper surface of the housing 50. Then, the cylinder 30 drives the mounting base 40 to descend to the initial position, thus returning the housing 50 to a vertical state.

[0073] It should be noted that in other embodiments, the drive bar 23 can also be a rack and pinion structure, that is, the transmission section and the transmission part 26 of the swing section of the drive bar 23 both have teeth. At the same time, the drive wheel 51 is also a gear structure, and the drive wheel is meshed with the drive bar 23. This transmission method can further ensure the stability of the drive wheel 51 and the housing 50, so that when the housing 50 rotates to stir the liquid, the housing 50 will not rotate.

[0074] like Figure 7 , Figure 9 , Figure 10 , Figure 12 As shown, the scraping module is installed on the inclined surface of the housing 50. After the work is completed, the scraping module can scrape the sediment remaining on the bottom conical surface of the cylinder 10 to assist in the discharge.

[0075] The scraping module includes a support plate 60, a spring 61, a mounting plate 62, a toothed block 63, and a blocking block 65.

[0076] The housing 50 is provided with a water permeable hole 66, and a filter screen is provided on the water permeable hole 66 to filter the sewage and prevent larger impurities from entering. The liquid can enter the housing 50 through the water permeable hole 66 for storage. The water permeable hole 66 is also provided with a one-way valve so that the liquid can only enter the housing 50 and cannot be discharged.

[0077] A support plate 60 is fixedly installed inside the housing 50. A mounting plate 62 is mounted on the support plate 60 via a spring 61. The mounting plate 62 is parallel to the inclined surface of the housing 50, and multiple toothed blocks 63 are spaced apart along the length of the inclined surface on the mounting plate 62. Through holes are opened on the inclined surface of the housing 50 at positions corresponding to the toothed blocks 63, and the toothed blocks 63 extend to the outside of the housing 50 through the through holes. Drainage holes 64 are opened between adjacent toothed blocks 63 on the inclined surface, and plugs 65 are provided on the mounting plate 62 to block the drainage holes 64. In the initial state, the toothed blocks 63 are located outside the housing 50, and the plugs 65 block the drainage holes 64.

[0078] After the reaction is complete, the clean water separated from the upper layer is discharged through the liquid outlet pipe 13, and then the discharge port 12 at the bottom is opened.

[0079] Then, cylinder 30 drives mounting base 40 to continue to descend. As drive wheel 51 descends along the transmission section on drive bar 23, housing 50 begins to rotate until drive wheel 51 descends to the limit position at the lower end of transmission section. At this time, housing 50 just rotates 180 degrees, and the inclined surface of housing 50 reaches the conical surface at the bottom of cylinder 10, and the inclination angles of the two are the same.

[0080] When the inclined surface of the shell 50 reaches the conical surface at the bottom of the cylinder 10, there is a certain distance between the inclined surface and the conical surface. The toothed block 63 first abuts against the conical surface at the bottom of the cylinder 10, thereby forcing the toothed block 63 to retract part of the shell 50. The mounting plate 62 drives the block 65 to retract inward, thereby opening the drain hole 64. As the toothed block 63 rotates, it scrapes the impurities deposited on the conical surface at the bottom of the cylinder 10. At the same time, a part of the liquid stored in the shell 50 is discharged from the drain hole 64, which can enhance the fluidity of the deposited impurities and help the impurities to be discharged from the discharge port 12.

[0081] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A wastewater treatment device for cement production, comprising: The cylinder and the drive pipe rotating inside the cylinder are characterized in that the drive pipe is provided with an aeration module, the aeration module including an aeration unit and a transmission unit. The aeration unit includes a mounting base that slides axially on the drive tube, and multiple housings are rotatably mounted on the mounting base in the circumferential direction. Each housing has multiple aeration tubes, and the axis of rotation of the mounting base is perpendicular to the axis of the drive tube. The transmission unit includes a drive bar that is vertically fixed on the drive tube. The drive bar has a transmission section and a swing section. The swing section is composed of multiple transmission parts arranged at intervals. A drive wheel that is fixedly installed on the housing and is in transmission cooperation with the transmission section and the transmission parts is used so that when the mounting seat is raised or lowered, the drive wheel can drive the housing to rotate. The drive wheel is provided with an elastic element that is connected to the mounting seat. The mounting base has a rotation stroke and a swing stroke. When it is in the rotation stroke, the housing can switch between vertical and horizontal states. In the vertical state, the aeration pipe is located at the bottom of the housing, and in the horizontal state, the aeration pipe is located on the side of the housing. When it is in the swing stroke, the housing can swing up and down. The shell is a right-angled triangular structure with two mutually perpendicular planes and an inclined plane. One of the planes of the shell is rotatably mounted on the mounting base via a rotating shaft, and the aeration pipe is set on the other plane of the shell. The inclined plane of the shell has the same inclination angle as the conical surface at the bottom of the cylinder. An installation plate is elastically slidably connected to the inner side of the shell along a direction perpendicular to its inclined plane. Multiple toothed blocks are fixedly installed on the installation plate. Multiple through holes corresponding to the toothed blocks are opened on the inclined plane of the shell. The toothed blocks extend to the outer side of the shell through the through holes. Drainage holes are opened between two adjacent through holes on the inclined plane. A plug is provided on the installation plate to block the drainage holes. Water permeable holes are also provided on the shell.

2. The wastewater treatment device for cement production according to claim 1, characterized in that, The drive bar has teeth on both the transmission section and the transmission part, and the drive wheel has a gear structure that meshes with the transmission section and the transmission part of the drive bar.

3. The wastewater treatment device for cement production according to claim 1, characterized in that, A cylinder is installed on the cylinder body, and a lifting plate is fixedly installed on the cylinder telescopic part. A rotating seat that slides axially with the drive tube is rotatably installed on the lifting plate, and both the lifting plate and the rotating seat are coaxial with the drive tube. A lifting rod is fixedly installed at the bottom of the rotating seat, and a base plate is fixedly installed at the lower end of the lifting rod. A mounting seat is fixedly installed on the base plate.

4. The wastewater treatment device for cement production according to claim 1, characterized in that, An L-shaped air supply pipe is fixedly installed on the cylinder. The upper end of the vertical section of the air supply pipe extends to the top of the cylinder and is connected to an air supply source. An inner ring is fixedly installed on the outside of the drive pipe, and an outer ring is rotatably installed on the outside of the inner ring. The inner ring can rotate around its axis inside the outer ring. Both the inner and outer rings have annular cavities inside, and the cavities between the two are interconnected. Multiple connecting pipes are connected along the circumference of the inner ring, and each connecting pipe is connected to an aeration pipe in one of the shells.

5. A wastewater treatment device for cement production according to claim 4, characterized in that, The gas supply pipe is made of metal, and the connecting pipe is made of rubber.

6. A wastewater treatment device for cement production according to any one of claims 1-5, characterized in that, The elastic element is a torsion spring or a coil spring.

7. A wastewater treatment device for cement production according to claim 1, characterized in that, The permeable holes are equipped with filter screens and one-way valves.

8. A wastewater treatment device for cement production according to claim 1, characterized in that, The cylinder has an inlet pipe and an outlet pipe connected to its side wall. The bottom of the cylinder has a conical structure and a discharge port.

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