Sewage treatment device for cement production

Abstract

The invention relates to the technical field of sewage treatment, and particularly discloses a sewage treatment device for cement production, the sewage treatment device comprises a cylinder and a driving pipe rotating in the cylinder, the driving pipe is provided with an aeration module, and the aeration module comprises an aeration unit and a transmission unit; the aeration unit comprises a mounting base which slides on the driving pipe in the axial direction, a plurality of shells are rotationally mounted on the mounting base in the circumferential direction of the mounting base, and a plurality of aeration pipes are arranged on the shells. The device has the beneficial effects that in the initial stage, the shell is in the vertical state, the aeration pipe faces downwards, in the middle stage, the shell rotates to the horizontal state, and the aeration pipe sprays air horizontally, so that air can be diffused all around, the uniformity of the reaction between the air and sewage is guaranteed, and when the reaction is close to the final stage, the shell can continuously swing up and down; floccules deposited on the upper surface of the shell can be shaken off, the state of the shell can be continuously adjusted according to different periods, and the sewage treatment speed and the purification effect are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and particularly to a sewage treatment device for cement production. Background Art

[0002] Sewage treatment mainly is a process of purifying sewage by using a series of sewage treatment equipment such as sedimentation tanks, flocculation tanks, and filtration tanks. Sewage with a high mud content and high suspended solids usually first uses the sedimentation method to precipitate and remove the sludge in the sewage, and then uses steps such as flocculation, filtration, and microbial treatment to remove the suspended solids in the sewage, ultimately achieving the effect of sewage purification.

[0003] Chinese Patent with the authorization announcement number CN118343960B discloses a water purification device for high mud content and high suspended solids, including a sewage treatment system. The sewage treatment system includes a flocculation sedimentation tank. A liquid guide pipe is installed inside the flocculation sedimentation tank, and the liquid guide pipe is used to introduce liquid flocculant into the flocculation sedimentation tank. A number of liquid guide discs are arranged on the surface of the liquid guide pipe. A plurality of branch liquid pipes are circumferentially installed on the surface of the liquid guide disc, and a plurality of drain pipes are installed on the upper surface of the branch liquid pipes; in this water purification device for high mud content and high suspended solids, through the combined design of the liquid guide pipe, branch liquid pipes, drain pipes and the air guide pipe, branch air pipes and air guide components in the flocculation sedimentation tank, the liquid flocculant and gas can be introduced to positions at multiple liquid levels in the flocculation sedimentation tank. At the same time, the design of the air guide components and the drain pipes facilitates the diffusion of the gas-assisted liquid flocculant into the sewage, with high flocculant diffusion efficiency and uniform diffusion.

[0004] Sewage needs to be aerated during the treatment process. However, the sewage generated by cement processing contains more sand and gravel particles. In the above technical solution, the air holes are located above the pipeline. When the gas supply stops, the sand and gravel particles will precipitate and block the air holes, affecting the normal air outlet of the air holes. Moreover, the sizes of the sand and gravel particles are uneven, and the layering is relatively fast. The multi-layer air bubble outlet method will cause the flocculated and formed materials below to be stirred and crushed, which is not conducive to the separation of impurities. Summary of the Invention

[0005] The present invention provides a sewage treatment device for cement production, aiming to solve the technical problems in the related art that the air holes are located above the pipeline. When the gas supply stops, the sand and gravel particles will precipitate and block the air holes, affecting the normal air outlet of the air holes. Moreover, the sizes of the sand and gravel particles are uneven, and the layering is relatively fast. The multi-layer air bubble outlet method will cause the flocculated and formed materials below to be stirred and crushed, which is not conducive to the separation of impurities.

[0006] A sewage treatment device for cement production according to the present invention includes: a cylinder body and a driving pipe rotatably disposed within the cylinder body. An aeration module is provided on the driving pipe, and the aeration module includes an aeration unit and a transmission unit; the aeration unit includes a mounting seat slidable axially along the driving pipe. A plurality of shells are rotatably mounted on the mounting seat in the circumferential direction thereof. A plurality of aeration pipes are provided on the shells, and the rotation axis of the mounting seat is perpendicular to the axis of the driving pipe; the transmission unit includes a driving strip vertically fixed on the driving pipe. The driving strip has a transmission section and a swinging section. The swinging section is composed of a plurality of spaced transmission parts. A driving wheel is fixedly mounted on the shell and is in transmission cooperation with the transmission section and the transmission parts, so that when the mounting seat moves up and down, the driving wheel can drive the shell to rotate. An elastic member connected to the mounting seat is provided on the driving wheel; the mounting seat has a rotation stroke and a swinging stroke. When in the rotation stroke, the shell can be converted between a vertical state and a horizontal state. In the vertical state, the aeration pipe is located at the bottom of the shell. In the horizontal state, the aeration pipe is located on the side of the shell. When in the swinging stroke, the shell can swing up and down.

[0007] In the initial stage, the shell is located at a position near the lower part within the cylinder body, and the shell is in a vertical state, with the aeration pipe facing downward. As the shell rotates, the shell can not only stir the sewage, but also ensure that the gas blown out from the aeration pipe can be evenly mixed with the sewage, ensuring that the gas and the reactant react fully with the sewage; in the middle stage, large particle suspensions have flocculated and precipitated at the bottom of the cylinder body. During the process of the shell rising, the driving wheel drives the shell to start rotating. The shell rotates to a horizontal state, and then the driving pipe drives the horizontally positioned shell to rotate. When the horizontally positioned shell rotates, it can avoid disturbing the liquid, ensuring the flocculation sedimentation reaction of the liquid. At the same time, the aeration pipe can continuously maintain the gas supply state. At this time, the aeration pipe jets horizontally, which is conducive to the gas diffusing in all directions, ensuring the uniformity of the gas reaction with the sewage. When the reaction is approaching the end stage, the cylinder continues to drive the mounting seat to rise, and the driving wheel enters the swinging section of the driving strip, causing the shell to continuously swing up and down, which can shake off the flocculants deposited on the upper surface of the shell, ensuring the sewage treatment effect.

[0008] Preferably, the shell is of a right triangle structure. The shell has two mutually perpendicular planes and an inclined plane. One of the planes of the shell is rotatably mounted on the mounting seat through a rotating shaft, and the aeration pipe is provided on the other plane of the shell.

[0009] The right triangle shape of the shell is beneficial for continuously adjusting the state of the shell according to different periods. Its inclined plane can cooperate with the bottom conical surface of the cylinder body to assist in discharging the bottom sediments.

[0010] Preferably, an installation plate is elastically and slidably connected to the inner side of the housing along a direction perpendicular to its inclined surface. A plurality of tooth blocks are fixedly installed on the installation plate. A plurality of through holes corresponding to the tooth blocks one by one are formed in the inclined surface of the housing. The tooth blocks extend through the through holes to the outside of the housing. Drainage holes are formed between adjacent two through holes on the inclined surface. A blocking block for blocking the drainage holes is arranged on the installation plate, and a water permeable hole is also arranged on the housing.

[0011] While one side of the tooth block rotates to scrape the impurities deposited on the conical surface at the bottom of the cylinder body, at the same time, the liquid stored in the housing is discharged from the drainage holes, which can enhance the fluidity of the deposited impurities and assist the impurities to be discharged from the discharge port, effectively improving the discharge of the deposited impurities and avoiding blockage.

[0012] Preferably, tooth teeth are arranged on both the transmission section of the driving strip and the transmission part. The driving wheel is of a gear structure and meshes with the transmission section and the transmission part of the driving strip.

[0013] During the process of the driving wheel rising and falling, the driving strip can drive it to rotate to adjust the state of the housing.

[0014] Preferably, a cylinder is installed on the cylinder body. The telescopic part of the cylinder is fixedly installed with a lifting plate. A rotating seat axially slidably matched with the driving tube is rotatably installed on the lifting plate. Both the lifting plate and the rotating seat are coaxially arranged with the driving tube. A lifting rod is fixedly installed at the bottom of the rotating seat, and a bottom plate is fixedly installed at the lower end of the lifting rod. The mounting seat is fixedly installed on the bottom plate.

[0015] Preferably, an L-shaped air supply pipe is fixedly installed on the cylinder body. The upper end of the vertical section of the air supply pipe extends above the cylinder body and is connected to an air supply source. An inner ring is fixedly installed on the outside of the driving tube. An outer ring is sealed and rotatably installed on the outside of the inner ring, and 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 them are interconnected. A plurality of connecting pipes are connected circumferentially along the inner ring. Each connecting pipe is correspondingly connected to an air supply pipe in one of the housings.

[0016] During the continuous rising and falling process of the housing, gas can be continuously supplied to the air supply pipes.

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

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

[0019] Preferably, a filter screen and a one-way valve are arranged on the water permeable hole.

[0020] Preferably, a feed pipe and a liquid outlet pipe communicating with the cylinder body are arranged on the side wall of the cylinder body. The bottom of the cylinder body is of a conical structure and has a discharge port at the bottom.

[0021] With the above technical solution, the beneficial effects of the present invention are as follows: In the initial stage, the housing is located near the lower position inside the cylinder, and the housing is in a vertical state, with the aeration pipe facing downward. As the housing rotates, the housing can not only stir the sewage, but also ensure that the gas blown out from the aeration pipe can be evenly mixed with the sewage, ensuring that the gas and the reactant fully react with the sewage. In the middle stage, large particle suspended matters have flocculated and precipitated at the bottom of the cylinder. During the process of the housing rising, the driving wheel drives the housing to start rotating, and the housing rotates to a horizontal state. Then the driving pipe drives the housing in the horizontal state to rotate. When the housing in the horizontal state rotates, it can avoid interfering with the liquid, ensuring the flocculation sedimentation reaction of the liquid. At the same time, the aeration pipe can continuously maintain the gas supply state. At this time, the aeration pipe jets horizontally, which is conducive to the diffusion of the gas to the surrounding, ensuring the uniformity of the reaction between the gas and the sewage. When the reaction is approaching the end, the cylinder continues to drive the mounting seat to rise, and the driving wheel enters the swinging section of the driving strip, causing the housing to continuously swing up and down, shaking off the flocculent substances deposited on the upper surface of the housing, ensuring the sewage treatment effect, and being able to continuously adjust the state of the housing according to different periods, improving the sewage treatment speed and purification effect.

[0022] The housing descends and rotates, so that the inclined surface can reach the conical surface at the bottom of the cylinder. The tooth block first abuts against the conical surface at the bottom of the cylinder, thereby forcing the tooth block to shrink into the housing by a part. The mounting plate drives the plug block to shrink inward, thereby opening the drain hole. As the tooth block rotates while scraping the impurities deposited on the conical surface at the bottom of the cylinder, at the same time, the liquid stored in the housing 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, effectively improving the discharge of the deposited impurities and avoiding blockage. Description of the Drawings

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

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

[0025] Figure 3 It is a schematic diagram of the structure of the driving pipe of the present invention.

[0026] Figure 4 It is an exploded view of the driving pipe and the housing of the present invention.

[0027] Figure 5 It is a schematic diagram of the structure of the mounting seat of the present invention.

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

[0029] Figure 7 It is a top view of the mounting seat of the present invention.

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

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

[0032] Figure 10 For the present invention Figure 9 An enlarged view of part A in

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

[0034] Figure 12 It is a schematic diagram of the state when the tooth block of the present invention contacts the bottom of the cylinder.

[0035] Reference numerals: 10, cylinder; 11, feed pipe; 12, discharge port; 13, liquid outlet pipe; 20, protective housing; 21, drive motor; 22, drive pipe; 23, drive bar; 24, groove; 25, avoidance perforation; 26, transmission part; 30, cylinder; 31, lifting plate; 32, rotating seat; 33, lifting rod; 34, bottom plate; 40, mounting seat; 41, guide groove; 50, housing; 51, drive wheel; 52, elastic member; 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, plug block; 66, water permeable hole. Detailed implementation manners

[0036] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0037] As Figures 1 to 11 shown, a specific embodiment of a sewage treatment device for cement production according to the present invention includes a treatment module, a bearing module, an aeration module, and a scraping module.

[0038] The treatment module is used to load sewage and is also convenient for treating the sewage. The bearing module is installed on the treatment module to install the aeration module and drive the aeration module to rotate. The aeration module is used to provide gas for aeration treatment of the sewage. The scraping module is used to scrape the sediment accumulated at the bottom of the bearing module to facilitate the discharge of the sediment.

[0039] As Figure 1 shown, the treatment module includes a cylinder 10, a feed pipe 11, and a liquid outlet pipe 13.

[0040] The cylinder body 10 is of a cylindrical structure, and the bottom of the cylinder body 10 is of a conical structure, and a plurality of legs are arranged at the bottom for supporting the cylinder body 10. An inlet pipe 11 is installed at a position near the upper part of the peripheral wall of the cylinder body 10, and the inlet pipe 11 communicates with the inside of the cylinder body 10 for adding sewage and reactants into the cylinder body 10.

[0041] An outlet pipe 13 is installed at a position near the lower part of the outer wall of the cylinder body 10, and the outlet pipe 13 communicates with the inside of the cylinder body 10 for discharging the treated sewage. A discharge port 12 with a downward opening is arranged at the bottom of the cylinder body 10, and a valve for controlling its opening and closing is installed at the discharge port 12. When the valve is opened, it is convenient to discharge the sediment at the bottom of the cylinder body 10.

[0042] The bearing module includes a protective shell 20, a driving motor 21 and a driving pipe 22.

[0043] A circular protective shell 20 is fixedly installed on the upper surface of the cylinder body 10, and the protective shell 20 is coaxially arranged with the cylinder body 10. A driving motor 21 is fixedly installed on the upper surface of the protective shell 20, and a driving pipe 22 is rotatably installed inside the protective shell 20. The driving pipe 22 is a hollow columnar structure, and the driving pipe 22 is coaxially arranged with the protective shell 20. The upper end of the driving pipe 22 is connected to the driving motor 21, so that the driving motor 21 can drive the driving pipe 22 to rotate.

[0044] A circular opening for the driving pipe 22 to pass through is formed on the upper surface of the cylinder body 10, and the lower end of the driving pipe 22 passes through the opening on the cylinder body 10 and extends into the inside of the cylinder body 10.

[0045] The aeration module is arranged on the driving pipe 22, so that the driving pipe 22 can drive the aeration module to rotate inside the cylinder body 10 while supplying gas to the sewage to perform aeration treatment on the sewage.

[0046] As Figures 2 to 8 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, so as to ensure that the sewage in the cylinder body 10 can be fully contacted with the gas and improve the quality of aeration.

[0047] As Figure 3 and Figure 4 shown, the lifting drive unit includes a cylinder 30, a lifting plate 31, a rotating seat 32, a lifting rod 33 and a bottom plate 34.

[0048] A cylinder 30 is fixedly installed on the upper surface of the protective shell 20, and the telescopic part of the cylinder 30 extends downward into the inside of the protective shell 20. In this embodiment, two cylinders 30 are provided and are symmetrically arranged front and back. The telescopic part of the cylinder 30 is fixedly installed with a lifting plate 31. The lifting plate 31 is of an annular structure, and the driving pipe 22 passes through the inside of the lifting plate 31, and the driving pipe 22 is coaxially arranged with the lifting plate 31.

[0049] A swivel base 32 is rotatably mounted at the bottom of the lifting plate 31. The swivel base 32 is also of an annular structure, and the drive tube 22 passes through the inside of the swivel base 32. The swivel base 32 can rotate about its own axis on the lifting plate 31. The swivel base 32 and the drive tube 22 are in axial sliding fit. In this embodiment, the swivel base 32 and the drive tube 22 are in sliding fit by means of a slider and a chute (not shown in the figure). That is, a long chute can be provided on the outer side wall of the drive tube 22, the length direction of the chute is vertically arranged, and a slider that is slidably engaged with the chute is provided on the swivel base 32. One end of the slider extends into the chute for abutting engagement with the side wall of the chute. When the drive tube 22 rotates, the swivel base 32 can be driven to rotate together.

[0050] The swivel base 32 can rotate at the bottom of the lifting plate 31. The cylinder 30 drives the lifting plate 31 to move up and down. The lifting plate 31 drives the swivel base 32 to move up and down synchronously. Finally, the swivel base 32 is driven to rotate by the drive tube 22, and at the same time, the swivel base 32 can also move up and down along the axis of the drive tube 22.

[0051] A lifting rod 33 is fixedly mounted at the front and rear of the bottom of the swivel base 32. The axis of the lifting rod 33 is vertically arranged, that is, the axis of the lifting rod 33 is parallel to the axis of the drive tube 22. The bottom of the drive tube 22 is fixedly mounted with a bottom plate 34. The bottom plate 34 is also of an annular structure, and the drive tube 22 passes through the inside of the bottom plate 34.

[0052] As Figures 3 to 8 shown, the aeration unit includes a mounting seat 40, a housing 50, a drive wheel 51, an elastic member 52, a drive strip 23, an aeration pipe 54 and a gas supply assembly.

[0053] The mounting seat 40 is fixedly mounted at the bottom of the bottom plate 34. At the same time, the mounting seat 40 is also of an annular structure, that is, the drive tube 22 also passes through the inside of the mounting seat 40.

[0054] As Figure 5 shown, a plurality of guide grooves 41 are provided along the circumferential direction of the mounting seat 40. In this embodiment, the number of the guide grooves 41 is 4. In other embodiments, the number of the guide grooves 41 is not limited to this, and can also be 6, 8 or even more. The guide grooves 41 are of a square structure and penetrate through the mounting seat 40 up and down. An opening is formed on each surface of the guide groove 41 close to the inner side of the mounting seat 40. The opening enables the guide groove 41 to communicate with the inside of the mounting seat 40.

[0055] A plurality of housings 50 are rotatably mounted on the outer peripheral wall of the mounting seat 40. In this embodiment, the number of the housings 50 is 4. In other embodiments, the number of the housings 50 is not limited to this, and can also be 6, 8 or even more, and each housing 50 is correspondingly arranged with the guide groove 41.

[0056] In this embodiment, the housing 50 has a right triangle structure. The interior of the housing 50 is a hollow structure. The housing 50 has two mutually perpendicular planes and an inclined plane, and both ends of the inclined plane are respectively connected to the two planes. A rotating shaft is fixedly installed on one of the planes of the housing 50, and the housing 50 is rotatably installed on the mounting base 40 through the rotating shaft, and the axis of the rotating shaft is perpendicular to the axis of the mounting base 40. A plurality of spaced aeration pipes 54 are horizontally installed on the other plane of the housing 50. The aeration pipes 54 are all perpendicular to the plane where they are located, and the air outlet holes of the aeration pipes 54 face the outside of the housing 50. All the aeration pipes 54 are communicated with each other, and the air supply assembly is communicated with the aeration pipes 54, so that the air supply assembly can supply gas to the aeration pipes 54, and the gas can reach the sewage from the aeration pipes 54. It should be emphasized that a check valve is provided in each aeration pipe 54, so as to ensure that only the gas can be ejected from the aeration pipe 54 and prevent the sewage in the cylinder 10 from flowing back into the aeration pipe 54.

[0057] One end of the rotating shaft on the housing 50 away from the housing 50 penetrates into the guide groove 41, and a driving wheel 51 is fixedly installed at the end of the rotating shaft located in the guide groove 41. The driving wheel 51 is coaxially arranged with the rotating shaft on the housing 50, and an accommodating cavity is provided inside the driving wheel 51. An elastic member 52 is installed in the accommodating cavity. In this embodiment, the elastic member 52 is a spiral spring or a torsion spring, and one end of the elastic member 52 is connected to the driving wheel 51, and the other end of the elastic member 52 is connected to the mounting base 40. It should be emphasized that the driving wheel 51 in this embodiment is made of rubber.

[0058] Four driving strips 23 are arranged along the axial direction on the outer peripheral wall of the driving pipe 22, and the driving strips 23 are all vertically arranged. Each driving strip 23 is respectively arranged corresponding to the guide groove 41. The driving strips 23 all pass through the openings on the guide groove 41 and extend into the guide groove 41.

[0059] The driving strip 23 is in contact with and in transmission cooperation with the driving wheel 51. When the driving wheel 51 moves up and down following the mounting base 40, the driving wheel 51 can rotate, thereby driving the housing 50 to rotate.

[0060] As Figure 8As shown, the driving bar 23 has a transmission section and a swing section. The swing section is located above the transmission section and the two are connected to each other. The surface of the transmission section is a flat structure. When the driving wheel 51 is located on the transmission section, it can drive the driving wheel 51 to rotate stably. The swing section is composed of a plurality of transmission parts 26 arranged at vertical intervals, and a groove 24 is formed between two adjacent transmission parts 26. That is to say, when the driving wheel 51 reaches the swing section, during the process of the driving wheel 51 contacting the transmission part 26, the driving wheel 51 can be rotated. As the driving wheel 51 moves, when the driving wheel 51 reaches the groove 24, the driving wheel 51 loses the contact point, so the elastic part 52 in the driving wheel 51 will force the driving wheel 51 to rotate in the reverse direction. When the driving wheel 51 passes through the groove 24 and reaches another transmission part 26 again, the driving wheel 51 abuts against the transmission part 26 again, so that the driving wheel 51 rotates again, and so on. When the driving wheel 51 continuously alternates between forward rotation and reverse rotation, that is, the continuous swing of the housing 50 is realized. The swing state and function of the housing 50 will be specifically described later.

[0061] It should be particularly emphasized that the transmission part 26, the transmission section and the surface of the driving wheel 51 in contact are on the same horizontal plane, and the lowermost position of the swing section is the transmission part 26, that is, the transmission part 26 in the transmission section is connected to the swing section.

[0062] As Figure 3 and Figure 6 shown, the air supply assembly includes a connecting pipe 55, an inner ring 56, an outer ring 57 and an air supply pipe 58.

[0063] The air supply pipe 58 is fixedly installed on the cylinder body 10. The air supply pipe 58 is an L-shaped structure and is made of metal. The upper end of the vertical section of the air supply pipe 58 extends above the cylinder body 10 and is connected to an air supply source.

[0064] The inner ring 56 is fixedly installed outside the driving pipe 22. The lifting rod 33 penetrates through the inner ring 56 up and down and is slidably matched with the inner ring 56. The inner ring 56 is located at the upper end position of the driving bar 23. The outer ring 57 is rotatably installed outside the inner ring 56, and the inner ring 56 can rotate around its axis inside the outer ring 57. It should be particularly noted that both the inner ring 56 and the outer ring 57 are annular structures, and both have annular cavities (not shown in the figure) inside. The cavities on the inner ring 56 and the outer ring 57 are communicated with each other, that is, the inner ring 56 and the outer ring 57 are in sealed rotational cooperation. This structure is a prior art, so it will not be elaborated here.

[0065] The outer ring 57 is fixedly connected to the air supply pipe 58, and the air supply pipe 58 communicates with the cavity inside the outer ring 57. Thus, the outer ring 57 is fixed to the air supply pipe 58, so the outer ring 57 remains stationary, and the drive pipe 22 can drive the inner ring 56 to rotate continuously. At the same time, gas can enter the cavity of the outer ring 57 through the air supply pipe 58. Since the cavities on the inner ring 56 and the outer ring 57 communicate with each other, the gas can directly enter the cavity of the inner ring 56.

[0066] A plurality of connecting pipes 55 are connected along the circumferential direction on the inner side of the inner ring 56. The connecting pipes 55 are flexible hoses made of rubber, and the connecting pipes 55 are located inside the drive pipe 22. Each connecting pipe 55 corresponds to and communicates with an air diffuser pipe 54 inside one of the housings 50.

[0067] A long strip-shaped avoidance perforation 25 is formed on the outer side wall of the drive pipe 22. One end of the connecting pipe 55 away from the inner ring 56 passes through the avoidance perforation 25. At the same time, through holes for the connecting pipe 55 to pass through are provided on both the drive wheel 51 and the rotating shaft of the housing 50, and the through holes are coaxially arranged with the drive wheel 51 and the housing 50. One end of the connecting pipe 55 away from the inner ring 56 passes through the rotating shafts of the drive wheel 51 and the housing 50 and enters the inside of the housing 50 and communicates with the air diffuser pipe 54, so that gas can enter the sewage in the cylinder 10 from the air diffuser pipe 54. It should be emphasized that the connecting pipe 55 has a sufficient length to ensure the lifting of the housing 50.

[0068] In the initial state, that is, in the initial stage of the reaction, the housing 50 is located at a position close to the lower part inside the cylinder 10, and the housing 50 is in a vertical state, and the air diffuser pipe 54 faces downward (as Figure 2 ). At this time, the drive wheel 51 is located on the transmission section of the drive strip 23, and the elastic member 52 inside the drive wheel 51 has a certain elastic force, that is, it is in a state of storing energy. It should be emphasized that the drive wheel 51 and the drive strip 23 are in transmission cooperation, and the friction between them is large enough to ensure that the drive wheel 51 does not rotate during the process of the housing 50 rotating to stir the sewage. The drive motor 21 drives all the housings 50 to rotate continuously through the drive pipe 22 to stir the sewage in the cylinder 10. At the same time, gas can be continuously blown into the sewage through the air diffuser pipe 54. As the housing 50 rotates, the housing 50 can not only stir the sewage, but also ensure that the gas blown out from the air diffuser pipe 54 can be evenly mixed with the sewage, ensuring that the gas and the reactant react fully with the sewage.

[0069] During the reaction process, sediment and flocs will continuously start to settle downward. Since the air diffuser pipe 54 is arranged at the bottom of the housing 50 and the air outlet faces downward, the sediment and flocs that descend will not enter the air outlet holes of the air diffuser pipe 54, avoiding blockage of it.

[0070] After reacting for a period of time and reaching the mid-stage of the reaction, the large-particle suspended matter has flocculated and settled at the bottom of the cylinder body 10. At this time, the liquid should not be vigorously stirred to prevent the flocculated material from being dispersed. At the same time, aeration treatment should still be carried out. Then the air cylinder 30 starts to drive the lifting plate 31 to rise, so that the lifting plate 31 drives the mounting seat 40 and the housing 50 to rise. During the rising process of the housing 50, relative movement occurs between the driving wheel 51 and the driving strip 23, so that the driving wheel 51 starts to rotate. The driving wheel 51 drives the housing 50 to start rotating. During this process, the elastic force of the elastic member 52 inside the driving wheel 51 starts to be gradually released. When the driving wheel 51 reaches the upper end position of the transmission section of the driving strip 23, at this time the housing 50 rotates to the horizontal state, that is, the housing 50 rotates 90 degrees, and the elastic force of the elastic member 52 is just released completely. Then the driving pipe 22 drives the horizontally placed housing 50 to rotate. When the horizontally placed housing 50 rotates, it can avoid disturbing the liquid, thereby ensuring the flocculation sedimentation reaction of the liquid. At the same time, the aeration pipe 54 can continuously maintain the air supply state.

[0071] When the reaction is approaching the end, there may be flocculants on the upper surface of the horizontally placed housing 50. Then the air cylinder 30 continues to drive the mounting seat 40 to rise. At this time, the driving wheel 51 enters the swing section of the driving strip 23. The driving wheel 51 first contacts the transmission part 26, so that as the mounting seat 40 rises, the driving wheel 51 starts to rotate, and the elastic member 52 starts to store energy. The housing 50 gradually rotates to an inclined state, and its inclination angle is between 20-30 degrees (such as Figure 11 ), immediately afterwards, the driving wheel 51 reaches the groove 24 part of the driving strip 23. At this time, the elastic force of the elastic member 52 starts to be released, forcing the driving wheel 51 and the housing 50 to start rotating in the reverse direction until they return to the horizontal state again, that is, the elastic force of the elastic member 52 is just enough to make the housing 50 rotate to the horizontal state. Thus, when the driving wheel 51 passes upward through the swing section of the driving strip 23, it will cause the housing 50 to continuously switch between the horizontal state and the inclined state, so that the flocculants deposited on the upper surface of the housing 50 can be shaken off. Then the air cylinder 30 drives the mounting seat 40 to descend to the initial position, that is, to make the housing 50 return to the vertical state again.

[0072] It should be noted that, in other embodiments, the driving strip 23 can also be a rack structure, that is, there are teeth on both the transmission section of the driving strip 23 and the transmission part 26 of the swing section. At the same time, the driving wheel 51 also corresponds to a gear structure, and the driving wheel is meshed with the driving strip 23. This transmission method can further ensure the stability of the driving wheel 51 and the housing 50, so that when the housing 50 rotates to stir the liquid, the housing 50 will not rotate.

[0073] Such as 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 conical surface at the bottom of the cylinder 10 to assist in discharging the material.

[0074] The scraping module includes a bearing plate 60, a spring 61, a mounting plate 62, a tooth block 63, and a plug block 65.

[0075] The housing 50 is provided with a water-permeable hole 66. A filter screen is provided on the water-permeable hole 66 to filter the sewage to prevent larger impurities from entering. The liquid can enter the housing 50 through the water-permeable hole 66 for storage. A one-way valve is also provided on the water-permeable hole 66 so that the liquid can only enter the housing 50 and cannot be discharged.

[0076] A bearing plate 60 is fixedly installed in the housing 50. A mounting plate 62 is installed on the bearing plate 60 through a spring 61. The mounting plate 62 is parallel to the inclined surface of the housing 50. A plurality of tooth blocks 63 are arranged at intervals along the length direction of the inclined surface on the mounting plate 62. Through holes are opened at positions corresponding to the tooth blocks 63 on the inclined surface of the housing 50. The tooth blocks 63 pass through the through holes and extend to the outside of the housing 50. Drainage holes 64 are opened at positions between two adjacent tooth blocks 63 on the inclined surface. A plug block 65 for blocking the drainage holes 64 is provided on the mounting plate 62. In the initial state, the tooth blocks 63 are located outside the housing 50, and the plug block 65 blocks the drainage holes 64.

[0077] After the reaction is completed, 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.

[0078] Then the air cylinder 30 drives the mounting seat 40 to continue to descend. During the process that the driving wheel 51 descends along the transmission section on the driving strip 23, the housing 50 starts to rotate until the driving wheel 51 descends to the limit position at the lower end of the transmission section. At this time, the housing 50 just flips 180 degrees, and the inclined surface of the housing 50 reaches the conical surface at the bottom of the cylinder 10, and their inclination angles are the same.

[0079] When the inclined surface of the housing 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 tooth blocks 63 first abut against the conical surface at the bottom of the cylinder 10, thereby forcing the tooth blocks 63 to contract into the housing 50 by a certain amount. The mounting plate 62 drives the plug block 65 to contract inward, thereby opening the drainage holes 64. As the tooth blocks 63 rotate while scraping 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 housing 50 is discharged from the drainage holes 64, which can enhance the fluidity of the deposited impurities and assist the impurities to be discharged from the discharge port 12.

[0080] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A sewage treatment device for cement production, comprising: A cylinder body and a drive pipe rotatably disposed within the cylinder body, characterized in that 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 axially slidable along the drive pipe, and a plurality of shells are rotatably mounted on the mounting seat along its circumferential direction. The shells are provided with a plurality of 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 strip vertically fixed on the drive pipe. The drive strip has a transmission section and a swing section. The swing section is composed of a plurality of spaced transmission parts. A drive wheel in transmission cooperation with the transmission section and the transmission parts is fixedly mounted on the shell, so that when the mounting seat moves up and down, the drive wheel can drive the shell to rotate. An elastic member connected to the mounting seat is provided on the drive wheel; The mounting seat has a rotation stroke and a swing stroke. When in the rotation stroke, the shell can be converted between a vertical state and a horizontal state. When in the vertical state, the aeration pipe is located at the bottom of the shell. When in the horizontal state, the aeration pipe is located on the side of the shell. When in the swing stroke, the shell can swing up and down.

2. The sewage treatment device for cement production according to claim 1, wherein, The shell is of a right triangle structure, having two mutually perpendicular planes and an inclined plane. One of the planes of the shell is rotatably mounted on the mounting seat through a rotating shaft, and the aeration pipe is provided on the other plane of the shell.

3. The sewage treatment device for cement production according to claim 2, characterized in that, An installation plate is elastically slidably connected to the inner side of the shell along a direction perpendicular to its inclined plane. A plurality of tooth blocks are fixedly mounted on the installation plate. A plurality of through holes corresponding to the tooth blocks one by one are opened on the inclined plane of the shell. The tooth blocks extend through the through holes to the outside of the shell. Drainage holes are opened between adjacent two through holes on the inclined plane. A blocking block for blocking the drainage holes is provided on the installation plate, and a water permeable hole is also provided on the shell.

4. A sewage treatment device for cement production according to claim 1, characterized in that, Tooth teeth are provided on both the transmission section and the transmission parts of the drive strip. The drive wheel is of a gear structure and meshes with the transmission section and the transmission parts of the drive strip.

5. The sewage treatment device for cement production according to claim 1, wherein A cylinder is mounted on the cylinder body. A lifting plate is fixedly mounted on the telescopic part of the cylinder. A rotating seat in axial sliding cooperation with the drive pipe is rotatably mounted on the lifting plate. The lifting plate and the rotating seat are both coaxially arranged with the drive pipe. A lifting rod is fixedly mounted at the bottom of the rotating seat. A bottom plate is fixedly mounted at the lower end of the lifting rod, and the mounting seat is fixedly mounted on the bottom plate.

6. A sewage treatment device for cement production according to claim 1, characterized in that, An L-shaped air supply pipe is fixedly mounted on the cylinder body. The upper end of the vertical section of the air supply pipe extends above the cylinder body and is connected to an air supply source. An inner ring is fixedly mounted on the outside of the drive pipe. An outer ring is sealingly rotatably mounted on the outside of the inner ring, and the inner ring can rotate around its axis inside the outer ring. Annular cavities are provided inside both the inner ring and the outer ring, and the cavities between them are interconnected. A plurality of connecting pipes are connected to the inner side of the inner ring along its circumferential direction, and each connecting pipe is correspondingly connected to an aeration pipe inside one of the shells.

7. The sewage treatment device for cement production according to claim 6, characterized in that, The air supply pipe is made of metal, and the connecting pipe is made of rubber.

8. A sewage treatment device for cement production according to any one of claims 1 to 7, characterized in that, The elastic member is a torsion spring or a coil spring.

9. The sewage treatment device for cement production according to claim 3, characterized in that, A filter screen and a one-way valve are provided on the water permeable hole.

10. A sewage treatment device for cement production according to claim 1, characterized in that, A feed pipe and a liquid discharge pipe communicating with the cylinder body are provided on the side wall of the cylinder body. The bottom of the cylinder body is of a conical structure and has a discharge port at the bottom.

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