CN115634491B - Coal washing wastewater treatment device capable of being automatically cleaned regularly - Google Patents
Coal washing wastewater treatment device capable of being automatically cleaned regularly Download PDFInfo
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- CN115634491B CN115634491B CN202211290816.3A CN202211290816A CN115634491B CN 115634491 B CN115634491 B CN 115634491B CN 202211290816 A CN202211290816 A CN 202211290816A CN 115634491 B CN115634491 B CN 115634491B
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- 239000003245 coal Substances 0.000 title claims abstract description 58
- 238000005406 washing Methods 0.000 title claims abstract description 18
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 14
- 239000002351 wastewater Substances 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000004140 cleaning Methods 0.000 claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims description 53
- 238000005507 spraying Methods 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 33
- 239000010865 sewage Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 description 19
- 230000000694 effects Effects 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The application discloses a coal washing wastewater treatment device capable of being periodically self-cleaned, which comprises a tank body, wherein the top of the tank body is communicated with a water inlet pipe, the bottom of the tank body is communicated with a water outlet pipe, two filter screens with semicircular structures are rotatably arranged in the tank body, the two filter screens are matched to form a circular structure matched with the inner diameter of the tank body, the two filter screens synchronously face or are far away from each other by taking the diameter end of the two filter screens as the axis, and the maximum rotation angle of each filter screen is 90 degrees; the inside of the tank body is positioned below the filter screens and is also rotatably provided with a guide plate, in an initial state, the two filter screens are horizontally arranged to form a circular structure for filtering the coal wastewater, and the guide plate is arranged along the vertical direction relative to the filter screens. The coal wastewater treatment device provided by the application can automatically and regularly clean, and the filtered wastewater is utilized during cleaning, so that the wastewater is recycled, energy saving and environment protection are realized.
Description
Technical Field
The application relates to the technical field of coal wastewater treatment, in particular to a coal washing wastewater treatment device capable of being periodically self-cleaned.
Background
China is a large country of energy sources, and reserves a large amount of coal resources. In order to improve the combustion quality of coal after exploitation, processes such as washing and selecting coal transported from underground to ground are generally required, and coal washing water, slime water, mine sewage and other coal mine wastewater are greatly generated in the processes of coal washing and coal selecting. The coal mine wastewater has the characteristics of higher suspended matter content, difficult natural sedimentation and the like. If the coal mine wastewater is directly discharged, the water body can be polluted, the river channel can be silted up, and the growth of aquatic organisms can be disturbed. The coal wastewater therefore needs to be cleaned before being discharged to meet the discharge standard.
At present, most of coal wastewater treatment adopts a physical method, namely, particles with different sizes in the wastewater are screened out through step-by-step filtration, so that water in the wastewater is purified, strict requirements are provided for a filter screen with a filtering function, the quality of the filter screen directly influences the purification effect of the wastewater, however, in the actual operation process, the filter screen is easy to be blocked after being used for a period of time due to more impurities in the coal wastewater, so that the purification effect of the wastewater is ensured, dirt attached to the surface of the filter screen needs to be cleaned regularly, in the prior art, when the filter screen is cleaned, a person usually takes the filter screen out of a purification device, and then the filter screen is flushed by using an external flushing device, so that the filter screen can be cleaned up, but the manual disassembly and the cleaning of the filter screen are troublesome, and the purification device is in a shutdown state due to manual disassembly and the cleaning processing efficiency of coal is affected.
Disclosure of Invention
In order to solve the technical problems in the prior art, the application provides a coal washing wastewater treatment device capable of being self-cleaned periodically.
In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides a can regularly self-cleaning wash coal effluent treatment plant, includes the jar body, the top intercommunication of jar body is provided with the inlet tube, and the bottom intercommunication is provided with the outlet pipe, and the inside rotation of jar body is installed two filter screens that are semi-circular structure, and two filter screens cooperation form the circular structure with jar body internal diameter looks adaptation, and two filter screens are all with its diameter end as the synchronous orientation of axle center or keep away from each other rotation to every filter screen rotatory biggest angle is 90; the inside of the tank body is positioned below the filter screens and is also provided with a material guide plate in a rotating way, in an initial state, the two filter screens are horizontally arranged to form a circular structure for filtering the coal wastewater, and the material guide plate is arranged along the vertical direction relative to the filter screens; the two filter screens are in driving connection with an electric actuator arranged outside the tank body and rotate 90 degrees towards each other, meanwhile, the material guide plate rotates from a vertical state to a horizontal state and is communicated with a drain pipe on the outer wall of the tank body, and a spraying mechanism which is close to the lower parts of the two filter screens moves downwards along the vertical direction along with the rotation of the filter screens to spray the filter screens, so that the sewage after cleaning is guided into the drain pipe through the material guide plate and flows out of the tank body.
Preferably, the periphery of the tank body is connected with an annular pipe at the position of the filter screen corresponding to two filter screens in a horizontal state in an integrated manner, the bottom of each filter screen diameter end is fixedly connected with a central shaft, each central shaft extends into the annular pipe along the length direction of the filter screen diameter end, two ends of one central shaft are respectively rotatably installed on the inner wall of the annular pipe, the other central shaft penetrates through the annular pipe towards one end of the electric actuator and then is connected with the output end of the electric actuator through a connecting shaft in a driving manner, and two central shafts extend to one side of the electric actuator to the inside of the annular pipe and then are fixedly sleeved with two first gears and second gears which are meshed with each other.
Preferably, the end face of the material guiding plate facing one side of the filter screen is of an inclined structure, a guiding groove is formed in the end face in a downward concave manner, one side of the guiding groove is gradually wide and extends to the edge of the material guiding plate, the other side of the guiding groove is gradually narrowed and is communicated with a guiding outlet at the edge of the material guiding plate, the material guiding plate is rotatably arranged in the tank body through a rotating shaft on the outer walls of the two sides of the material guiding plate, and when the material guiding plate rotates to be in a horizontal state, the guiding outlet is closely adjacent to a pipe orifice of the drain pipe; the guide plate gradually increases from the widest end of the guide outlet to the guide groove to form an inclined structure towards one side of the filter screen, and one side of the guide plate, which is away from the filter screen, is in a plane structure.
Preferably, the second sprocket is fixedly sleeved on the central shaft, which is connected with the connecting shaft, inside the annular tube, the first sprocket is fixedly sleeved after the rotating shaft, which faces one side of the electric actuator, of the guide plate passes through the tank body, and the first sprocket is in transmission connection with the second sprocket through a first chain.
Preferably, the spraying mechanism comprises a spraying pipe which is arranged inside the tank body and can be lifted along the vertical direction, two rows of spray heads are distributed on the pipe wall of the spraying pipe along the length of the spraying pipe, the two rows of spray heads face two filter screens respectively, a third pipeline is arranged in the middle of each spray head in a communicating manner, and the third pipeline extends to the outside of the tank body and then is communicated with a water tank arranged outside the tank body through a second pipeline.
Preferably, grooves are formed on the two sides of the interior of the tank body corresponding to lifting tracks of the spray pipe, wherein the grooves facing the direction of the electric actuator are communicated with a mounting frame integrally formed on the outer wall of the tank body, a fourth chain wheel is mounted at the top of the inner side of the mounting frame, a sixth chain wheel is mounted at the bottom of the inner side of the mounting frame, a fourth chain is sleeved between the sixth chain wheel and the fourth chain wheel, a chain wheel shaft of the fourth chain penetrates through the mounting frame to extend to the exterior of the fourth chain wheel, a third chain wheel is fixedly sleeved on the outer wall of the mounting frame, a third gear externally meshed with the second gear is further rotatably mounted on the outer wall of the mounting frame, a seventh chain wheel is integrally formed at the center of the third gear, and a second chain is sleeved between the seventh chain wheel and the third chain wheel; two ends of the spray pipe are fixedly connected with limiting sliding plates which are in sliding connection with the inner wall of the tank body respectively, racks are arranged in two grooves in the tank body along the vertical direction, fourth gears which are meshed with the racks respectively are rotatably installed at two ends of the spray pipe, and a central shaft of the fourth gear which is close to one side of the installation frame extends into the installation frame and is sleeved with a fifth sprocket which is meshed with the fourth chain for transmission.
Preferably, the baffle is formed in the middle of the inner side of the spray pipe in an integrated manner, the threaded rods are rotatably arranged on two sides of the baffle, the threaded rods respectively penetrate through the spray pipe along the length direction of the threaded rods and then are fixedly connected with the corresponding fourth gears, the symmetrically arranged sliding baffles are sleeved on each threaded rod in a threaded manner, the threaded directions of the two threaded rods are opposite, and the spray pipe drives the two sliding baffles to rotate through the cooperation of the fourth gears and the racks in the downward sliding process of the inner wall of the tank body, so that the two sliding baffles synchronously move in opposite directions.
Preferably, the spraying mechanism further comprises a cross rod adjacent to the joint of the two filter screens, two ends of the cross rod are fixed on the inner wall of the tank body, two bottoms of the two ends of the cross rod are fixedly connected with connecting plates, a hanging rod is connected between the two connecting plates, a plurality of hanging rings are sleeved on the hanging rod in a sliding manner, a third pipeline sequentially penetrates through all the hanging rings and then extends to be communicated with the spraying pipes, and two branch pipes separated from the tail ends of the third pipeline are respectively distributed on two sides of the partition board.
Preferably, a three-way electromagnetic valve is connected to the water outlet pipe at the bottom of the tank body, the middle part of the three-way electromagnetic valve is connected with the water tank through a first pipeline, a water level sensor is arranged in the water tank, and the water level sensor is electrically connected with the three-way electromagnetic valve.
Compared with the prior art, the application provides a coal washing wastewater treatment device capable of being self-cleaned periodically, which has the following beneficial effects:
(1) According to the coal washing wastewater treatment device capable of regularly self-cleaning, when the dirt on the filter screens is required to be cleaned, the electric actuator drives the two filter screens to rotate from the horizontal state to the vertical state, in the process, the guide plate and the filter screens generate a linkage effect, the guide plate and the filter screens rotate from the vertical state to the horizontal state and are communicated with the sewage pipes on the outer wall of the tank body, the spray mechanism sprays and cleans the filter screens by utilizing purified wastewater, the dirt can be separated from the filter screens, the mixture of the wastewater and the dirt is discharged from the sewage pipes under the action of the guide plate, so that the self-cleaning of the filter screens is realized, the whole device can completely realize mechanical automatic cleaning, the device is quickly and conveniently switched between a cleaning mode and a wastewater purification mode, shutdown is not needed, and the purification treatment efficiency of the coal wastewater can be ensured. And the particles cleaned on the filter screen are not discharged through the water outlet pipe of the tank body, but are discharged from the sewage discharge pipe, and the coal wastewater and the particles are discharged separately, so that the discharged coal wastewater can be ensured to thoroughly have no particles.
(2) In addition, the spraying mechanism of the application is lifted in the vertical direction along with the rotation of the filter screen, and the spraying range of the spraying pipe is changed along with the rotation of the filter screen, so that the liquid sprayed by the spray head on the spraying pipe is always and directly sprayed to the filter screen, thereby not only meeting the requirement of spraying and cleaning, but also reducing the waste of resources.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate and together with the embodiments of the application and do not constitute a limitation to the application, and in which:
FIG. 1 is a schematic diagram of the overall structure of a coal washing wastewater treatment device capable of periodic self-cleaning according to an embodiment;
FIG. 2 is a schematic view of another angle of the whole device in an embodiment;
FIG. 3 is a schematic view of the internal structure of a tank according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a guide plate according to an embodiment;
FIG. 5 is a schematic view showing the installation of two screens in a tank according to an embodiment;
FIG. 6 is a schematic view of the structure of the outside of the mounting frame on the tank in the embodiment;
FIG. 7 is a schematic view showing the structure of the inner side of a mounting frame on a tank body in the embodiment;
FIG. 8 is a schematic view of a partial enlarged structure at A in FIG. 7;
FIG. 9 is a schematic view of the installation of a shower pipe inside a tank in an embodiment;
FIG. 10 is a schematic view of the overall structure of a shower pipe according to an embodiment;
FIG. 11 is a schematic view of the internal structure of a shower pipe according to an embodiment;
FIG. 12 is a schematic view of an assembly of two screens and a cross bar in an embodiment;
FIG. 13 is a schematic illustration of the attachment of the third conduit to the crossbar in an embodiment;
fig. 14 is a schematic view showing the distribution of the hanging rings on the hanging rod in the embodiment.
In the figure: 1. a tank body; 2. an annular tube; 3. a water inlet pipe; 4. a connecting flange; 5. a water tank; 6. a first pipe; 7. a second pipe; 8. a blow-down pipe; 9. an electric actuator; 10. a shield; 11. a first chain; 12. a mounting frame; 13. a filter screen; 14. a material guide plate; 15. a rotating shaft; 16. a first sprocket; 17. a diversion trench; 18. a diversion outlet; 19. a protrusion; 20. a central shaft; 21. a connecting shaft; 22. a first gear; 23. a second gear; 24. a second sprocket; 25. a third gear; 26. a second chain; 27. a third sprocket; 28. a fourth sprocket; 29. a fourth chain; 30. a fifth sprocket; 31. a fourth gear; 32. a shower pipe; 33. a rack; 34. a sixth sprocket; 35. a spray head; 36. a third conduit; 37. a limit sliding plate; 38. a partition plate; 39. a threaded rod; 40. a sliding baffle; 41. a cross bar; 42. a boom; 43. a connecting plate; 44. a hanging ring; 45. a three-way electromagnetic valve.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present application.
Coal mine wastewater such as coal washing water, slime water and mine sewage can be greatly generated in the coal washing, coal dressing and coal digging processes. The coal mine wastewater has the characteristics of higher suspended matter content, difficult natural sedimentation and the like. If the coal mine wastewater is directly discharged, the water body can be polluted, the river channel is silted, and the growth of aquatic organisms can be disturbed, so that the coal mine wastewater becomes one of main pollution sources and coal loss sources in the coal industry, and an effective measure is necessary to strictly treat the coal mine wastewater.
Referring to fig. 1 to 14, the present embodiment provides a coal washing wastewater treatment device capable of periodic self-cleaning, which comprises a tank body 1, wherein a water inlet pipe 3 is arranged at the top of the tank body 1 in a communicated manner, a water outlet pipe is arranged at the bottom of the tank body in a communicated manner, a connecting flange 4 is connected at the bottom of the water outlet pipe, and when the device is used, coal wastewater enters the tank body 1 through the water inlet pipe 3, and after the coal wastewater is filtered by the tank body 1, the wastewater reaches the discharge standard, and is connected with an external discharge pipeline through the connecting flange 4 at the bottom of the water outlet pipe, so that the wastewater reaching the standard is discharged in a concentrated manner.
When the coal wastewater is filtered, two semi-circular filter screens 13 are rotatably arranged in the tank body 1, and because the application scene of the application is coal washing wastewater, most carbon particles in the wastewater need to be filtered, and therefore, the aperture of the filter screens 13 is set to be 1.5mm. The two filter screens 13 are matched to form a circular structure matched with the inner diameter of the tank body 1, the two filter screens 13 synchronously rotate towards or away from each other by taking the diameter end of the filter screens as the axis, and the maximum rotation angle of each filter screen 13 is 90 degrees; the inside of jar body 1 is located the below of filter screen 13 and still rotates installs stock guide 14, and during initial state, two filter screens 13 are the level and arrange and form circular structure and be used for carrying out filtration treatment to coal waste water, and stock guide 14 then arranges along vertical direction for filter screen 13, and coal waste water gets into and passes through two filter screens 13 after jar body 1 inside, and the granule that the particle diameter is less than 1.5mm in the coal waste water is along with water through filter screen 13, and the granule that the particle diameter is greater than 1.5mm then is blocked on filter screen 13, and stock guide 14 owing to keep vertical state and be located the intermediate position of two filter screens 13, therefore it can not cause great influence to the waste water flow after filtering.
When more particles are adhered to the filter screen 13, the filter screen 13 needs to be cleaned, when the filter screen 13 is cleaned, the two filter screens 13 are in driving connection with the electric actuator 9 arranged outside the tank body 1, the electric actuator 9 drives the two filter screens 13 to rotate 90 degrees towards each other, finally, the two filter screens 13 are in a vertical state, meanwhile, the material guide plate 14 rotates to a horizontal state from the vertical state and is communicated with the sewage pipes 8 on the outer wall of the tank body 1, a spraying mechanism immediately below the two filter screens 13 moves downwards along the vertical direction along with the rotation of the filter screens 13 to spray the particles, sewage after cleaning is guided into the sewage pipes 8 through the material guide plate 14 to flow out of the tank body 1, the cleaned particles on the filter screen 13 are discharged from the sewage pipes 8 instead of the water pipes of the tank body 1, the coal waste water and the particles are separately discharged, and the coal waste water discharged can be ensured to be completely free of the particles.
The periphery of the tank body 1 is integrally connected with an annular pipe 2 at the position corresponding to two filter screens 13 in a horizontal state, the bottom of the diameter end of each filter screen 13 is fixedly connected with a central shaft 20, each central shaft 20 extends into the annular pipe 2 along the length direction of the diameter end of each filter screen 13, two ends of one central shaft 20 are respectively rotatably installed on the inner wall of the annular pipe 2, one end of the other central shaft 20, which faces the electric actuator 9, passes through the annular pipe 2 and then is in driving connection with the output end of the electric actuator 9 through a connecting shaft 21, two central shafts 20, which face one side of the electric actuator 9, are fixedly sleeved with two first gears 22 and second gears 23 which are meshed with each other after extending into the annular pipe 2, and when the two filter screens 13 relatively rotate, the central shafts 20 connected with the connecting shaft 21 are driven by the electric actuator 9 to rotate so as to drive the corresponding filter screens 13 and the first gears 22 to rotate, and the second gears 23 are driven to rotate by meshing with the first gears 22 so as to realize the relative rotation of the two filter screens 13.
As a preferred embodiment, the end surface of the material guiding plate 14 facing the filter screen 13 is in an inclined structure, the end surface is internally and downwardly recessed to form a guiding groove 17, the area of the end surface extending upwards relative to the guiding groove 17 is formed to be convex 19, one side of the guiding groove 17 is gradually widened and extends to the edge of the material guiding plate 14, the other side of the guiding groove is gradually narrowed and is communicated with a guiding outlet 18 at the edge of the material guiding plate 14, the material guiding plate 14 is rotatably arranged in the tank body 1 through a rotating shaft 15 on the outer walls of the two sides of the material guiding plate 14, and when the material guiding plate 14 rotates to a horizontal state, the guiding outlet 18 is adjacent to the pipe orifice of the sewage pipe 8, the spraying mechanism works to clean particles attached to the filter screen 13, and the particles flow onto the material guiding plate 14 along with water flow, then flow to the guiding outlet 18 under the action of the guiding groove 17 and are finally discharged from the sewage pipe 8. In order to thoroughly discharge the particles on the material guiding plate 14 to the outside of the tank body 1, the structure of the material guiding plate 14 is further improved, the height of the material guiding plate 14, which faces one side of the filter screen 13, is gradually increased from the flow guiding outlet 18 to the widest end of the flow guiding groove 17 to form an inclined structure, one side of the material guiding plate 14, which faces away from the filter screen 13, is in a plane structure, and after the mixture of water flow and the particles falls into the upper end face of the inclined structure of the material guiding plate 14, the mixture of the water flow and the particles can be rapidly and thoroughly discharged to the outside of the tank body 1 under the action of gravity.
The central shaft 20 connected with the connecting shaft 21 inside the annular tube 2 is fixedly sleeved with a second sprocket 24, the rotating shaft 15 of the material guide plate 14 facing one side of the electric actuator 9 penetrates through the tank body 1 and is fixedly sleeved with a first sprocket 16, the first sprocket 16 is in transmission connection with the second sprocket 24 through a first chain 11, when the electric actuator 9 drives the first gear 22 to rotate anticlockwise, the second sprocket 24 rotates synchronously with the first gear 22, and then the first sprocket 16 is driven to rotate through the first chain 11, the material guide plate 14 positioned inside the tank body 1 rotates anticlockwise, and the material guide plate 14 in the application is in an initial state as shown in fig. 6, and in this state, filtered waste water flows downwards under the action of the guide groove 17 even if the waste water falls onto the surface of the material guide plate 14, so that the waste water does not stay excessively.
The spraying mechanism comprises a spraying pipe 32 which is arranged in the tank body 1 and can be lifted in the vertical direction, two rows of spray heads 35 are distributed on the pipe wall of the spraying pipe 32 along the length of the spraying pipe, the two rows of spray heads 35 face two filter screens 13 respectively, a third pipeline 36 is arranged in the middle of each spray head 35 in a communicating manner, the third pipeline 36 extends to the outside of the tank body 1 and then is communicated with a water tank 5 arranged outside the tank body 1 through a second pipeline 7, when the spraying mechanism works, liquid is pumped into the spraying pipe 32 through a water pump in the water tank 5, the filter screens 13 are cleaned after the spray heads 35 in the two rows of spray heads 32 spray out, the filter screens 13 are reversely flushed by utilizing the impact force of water flow, and particles attached to the surfaces of the filter screens 13 can be cleaned.
Because the spraying mechanism in the application lifts along with the rotation of the two filter screens 13, the movement of the two filter screens belongs to a linkage state, in order to achieve the effect, grooves are formed on the two sides of the inside of the tank body 1 corresponding to the lifting track of the spraying pipe 32, wherein the grooves facing to the direction of the electric actuator 9 are communicated with the mounting frame 12 integrally formed on the outer wall of the tank body 1, the fourth chain wheel 28 is mounted on the top of the inner side of the mounting frame 12, the sixth chain wheel 34 is mounted on the bottom of the mounting frame, the fourth chain 29 is sleeved between the sixth chain wheel 34 and the fourth chain wheel 28, the third chain wheel 27 is fixedly sleeved after a chain wheel shaft of the fourth chain 29 passes through the mounting frame 12 and extends to the outside of the mounting frame, the third gear 25 externally meshed with the second gear 23 is rotatably mounted on the outer wall of the mounting frame 12, the seventh chain wheel is integrally formed on the center of the third gear 25, and the second chain 26 is sleeved between the seventh chain wheel and the third chain wheel 27. When the two screens 13 rotate from the horizontal state to the vertical state, the electric actuator 9 drives the first gear 22 to rotate counterclockwise, the second gear 23 rotates clockwise, the third gear 25 meshed with the second gear 23 rotates counterclockwise, the seventh sprocket rotates synchronously with the third gear 25, the third sprocket 27 is driven to rotate counterclockwise through the second chain 26, and the sixth sprocket 34 kept rotating synchronously with the third sprocket 27 drives the fourth sprocket 28 to rotate counterclockwise through the fourth chain 29. In order to avoid exposing all the transmission parts outside the mounting frame 12 to the outside, the application is also provided with a shield 10 which is integrally connected with the annular pipe 2 outside the mounting frame 12, and the shield 10 can enable all the transmission parts on the mounting frame 12 to be in a closed space.
The two ends of the spray pipe 32 are fixedly connected with limit sliding plates 37 which are in sliding connection with the inner wall of the tank body 1 respectively, racks 33 are arranged in two grooves in the tank body 1 along the vertical direction, the two ends of the spray pipe 32 are also rotatably provided with fourth gears 31 which are respectively meshed with the racks 33, a fifth chain wheel 30 which is meshed with a fourth chain 29 and is driven by the fourth chain 29 is sleeved after the central shaft of the fourth gear 31 which is close to one side of the mounting frame 12 extends to the inside of the mounting frame 12, the fourth chain 29 which is wound on the fourth chain wheel 28 and the sixth chain wheel 34 rotates anticlockwise, and the fourth chain 29 rotates clockwise under the angle of view angle according to the drawing, and drives the fifth chain wheel 30 to rotate anticlockwise when the fourth chain 29 rotates, and the limit sliding plates 37 at the two ends of the spray pipe 32 are in sliding fit with the inner wall of the tank body 1, and the fifth chain wheel 30 and the fourth gears 31 rotate relative to the spray pipe 32, so that when the fourth gears 31 rotate, the fourth gears 31 are meshed with the racks 33 on the grooves in the tank body 1, and the fourth chain wheel 32 move downwards, and the fifth chain wheel 30 moves downwards at the same speed as the fourth chain wheel 29 rotates downwards, but the fourth chain wheel 30 moves downwards, and is meshed with the fourth chain wheel 29, and moves downwards. In addition, since both the shower pipe 32 and the screen 13 are in synchronous motion, the present application requires that the spray heads 35 on the shower pipe 32 are arranged at a certain angle, and all the spray heads 35 on both sides of the shower pipe 32 are oriented toward the screen 13 in an inclined state, which is not shown in the drawing, but in order to enable the spray heads 35 to form a good spray effect on the screen 13 when the screen 13 is rotated, all the spray heads 35 must be arranged in an inclined state.
Further, in order to reduce the waste of water resources, since the spray pipe 32 is in a rotating state in the downward movement process, the filter screen 13 is in a semicircular structure, if all the spray heads 35 on the spray pipe 32 are in a spraying operation state all the time, then liquid sprayed by the spray heads 35 positioned at two ends of the spray pipe 32 cannot be sprayed onto the filter screen 13, and waste of the liquid can be caused, in order to avoid the occurrence of the situation, the spray pipe 32 is structurally improved, the middle part of the inner side of the spray pipe 32 is integrally formed with the partition plate 38, threaded rods 39 are rotatably arranged at two sides of the partition plate 38, after the threaded rods 39 respectively penetrate the spray pipe 32 along the length direction of the rods, the threaded rods 39 are fixedly connected with corresponding fourth gears 31, the threaded rods 39 are sleeved with symmetrically arranged sliding baffles 40, and the threads of the two threaded rods 39 are opposite, in the downward sliding process of the inner wall of the spray pipe 32 is driven to rotate through the fourth gears 31 and racks 33 in a matched mode, and the two sliding baffles 40 are enabled to synchronously move towards each other, the two sliding baffles 40 move towards each other from the two ends of the spray pipe 32, the two ends of the spray pipe 32 are enabled to gradually move towards the middle part of the spray pipe 32, the spray pipe is enabled to be in a matched with the spray pipe, the waste of the spray pipe is reduced, and the spray pipe is cleaned, the requirements of the spray pipe 32 can be gradually, and the water resources can be cleaned, and the spray pipe can be blocked, and the requirements are met.
In addition, the spraying mechanism in the application further comprises a cross rod 41 adjacent to the joint of the two filter screens 13, two ends of the cross rod 41 are fixed on the inner wall of the tank body 1, two bottoms of two ends of the cross rod 41 are fixedly connected with connecting plates 43, a hanging rod 42 is connected between the two connecting plates 43, a plurality of hanging rings 44 are sleeved on the hanging rod 42 in a sliding manner, a third pipeline 36 sequentially passes through all the hanging rings 44 and then extends to be communicated with the spraying pipe 32, two branch pipes separated from the tail end of the third pipeline 36 are respectively distributed on two sides of the partition plate 38, water in the water tank 5 sequentially enters the spraying pipe 32 through the second pipeline 7 and the third pipeline 36, water enters the middle of the spraying pipe 32, flows from two sides of the partition plate 38 to two ends of the spraying pipe 32, when the two sliding baffles 40 move oppositely, a spray head 35 on the spraying pipe 32 is gradually blocked, and the spraying range of the spraying pipe 32 is gradually shortened from two ends to the middle. It should be further noted that, because the shower pipe 32 reciprocates in the tank 1 in the present application, the third pipe 36 is reserved with a sufficient length in the tank 1 for the shower pipe 32 to move, so as to avoid the shower pipe 32 from being pulled when the shower pipe 32 moves up and down. Since the shower mechanism is provided at the junction of the two screens 13, the shower mechanism and the third pipe 36 do not interfere with the screens 13 even when the two screens 13 are relatively rotated to the maximum angle of 90 °.
As a preferred embodiment, the device of the present application is mainly aimed at the coal wastewater, and the coal wastewater is filtered by the filter screen 13 to reach the emission standard, and the particles attached to the surface of the filter screen 13 affect the filtering effect after a period of operation, so that the filter screen needs to be cleaned regularly, while the electric actuator 9 of the present application can be set to be started once every fixed time, so as to realize regular automatic cleaning of the whole device. In the cleaning process, a clean water source is also needed to be used for spraying the filter screen 13 by the spraying mechanism, and the coal wastewater treated by the application reaches the emission standard, so that the coal wastewater can be utilized, the wastewater is collected again and utilized for spraying the filter screen 13, thereby saving resources and being beneficial to energy conservation and environmental protection.
In the description of the present application, the terms "first," "second," "another," "yet another" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless explicitly defined otherwise.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and scope of the application as defined by the claims and their equivalents.
Claims (3)
1. The utility model provides a coal washing effluent treatment plant that can regularly self-cleaning, includes a jar body (1), and the top intercommunication of a jar body (1) is provided with inlet tube (3), and the bottom intercommunication is provided with outlet pipe, its characterized in that: two filter screens (13) with semicircular structures are rotatably arranged in the tank body (1), the two filter screens (13) are matched to form a circular structure matched with the inner diameter of the tank body (1), the two filter screens (13) synchronously rotate towards or away from each other by taking the diameter end of the filter screen as the axis, and the maximum rotation angle of each filter screen (13) is 90 degrees; the inside of the tank body (1) is positioned below the filter screens (13) and is also rotatably provided with a material guide plate (14), in an initial state, the two filter screens (13) are horizontally arranged to form a circular structure for filtering the coal wastewater, and the material guide plate (14) is arranged along the vertical direction relative to the filter screens (13); the two filter screens (13) are in driving connection with an electric actuator (9) arranged outside the tank body (1) and rotate 90 degrees towards each other, meanwhile, the material guide plate (14) rotates from a vertical state to a horizontal state and is communicated with the sewage discharge pipe (8) on the outer wall of the tank body (1), a spraying mechanism immediately below the two filter screens (13) moves downwards along the vertical direction along with the rotation of the filter screens (13) to spray the sewage, and the sewage after cleaning is guided into the sewage discharge pipe (8) through the material guide plate (14) and flows out of the tank body (1);
the periphery of the tank body (1) is integrally connected with an annular pipe (2) at the position corresponding to two filter screens (13) in a horizontal state, the bottom of the diameter end of each filter screen (13) is fixedly connected with a central shaft (20), each central shaft (20) extends into the annular pipe (2) along the length direction of the diameter end of each filter screen (13), two ends of one central shaft (20) are respectively rotatably arranged on the inner wall of the annular pipe (2), one end of the other central shaft (20) facing the electric actuator (9) passes through the annular pipe (2) and then is connected with the output end of the electric actuator (9) in a driving mode through a connecting shaft (21), and two central shafts (20) extend to one side of the electric actuator (9) and then are fixedly sleeved with two first gears (22) and second gears (23) which are meshed with each other;
the end face of the guide plate (14) facing one side of the filter screen (13) is of an inclined structure, a guide groove (17) is formed in the end face in a downward concave mode, one side of the guide groove (17) is gradually wide and extends to the edge of the guide plate (14), the other side of the guide groove is gradually narrowed and is communicated with a guide outlet (18) at the edge of the guide plate (14), the guide plate (14) is rotatably arranged inside the tank body (1) through a rotating shaft (15) on the outer walls of the two sides of the guide plate, and when the guide plate (14) rotates to be in a horizontal state, the guide outlet (18) is closely adjacent to the pipe orifice of the drain pipe (8); the height of the guide plate (14) towards one side of the filter screen (13) is gradually increased from the widest end of the guide groove (17) of the guide outlet (18) to form an inclined structure, and one side of the guide plate (14) away from the filter screen (13) is in a plane structure;
a second chain wheel (24) is fixedly sleeved on a central shaft (20) connected with the connecting shaft (21) inside the annular pipe (2), a first chain wheel (16) is fixedly sleeved after a rotating shaft (15) of the guide plate (14) facing one side of the electric actuator (9) passes through the tank body (1), and the first chain wheel (16) is in transmission connection with the second chain wheel (24) through a first chain (11);
the spraying mechanism comprises a spraying pipe (32) which is arranged inside the tank body (1) and can be lifted along the vertical direction, two rows of spray heads (35) are distributed on the pipe wall of the spraying pipe (32) along the length of the spraying pipe, the two rows of spray heads (35) face two filter screens (13) respectively, a third pipeline (36) is arranged in the middle of the spray heads (35) in a communicating manner, and the third pipeline (36) is communicated with a water tank (5) arranged outside the tank body (1) through a second pipeline (7) after extending to the outside of the tank body (1);
the lifting track of the spraying pipe (32) is correspondingly formed on two sides of the inside of the tank body (1), wherein the groove facing the direction of the electric actuator (9) is communicated with a mounting frame (12) integrally formed on the outer wall of the tank body (1), a fourth chain wheel (28) is mounted on the top of the inner side of the mounting frame (12), a sixth chain wheel (34) is mounted at the bottom, a fourth chain (29) is sleeved between the sixth chain wheel (34) and the fourth chain wheel (28), a chain wheel shaft of the fourth chain (29) penetrates through the mounting frame (12) to extend to the outside and then fixedly sleeved with a third chain wheel (27), a third gear (25) which is externally meshed with the second gear (23) is further rotatably mounted on the outer wall of the mounting frame (12), a seventh chain wheel is integrally formed at the center of the third gear (25), and a second chain (26) is sleeved between the seventh chain wheel and the third chain wheel (27); limiting sliding plates (37) which are in sliding connection with the inner wall of the tank body (1) are fixedly connected to two ends of the spraying pipe (32), racks (33) are arranged in two grooves in the tank body (1) along the vertical direction, fourth gears (31) which are meshed with the racks (33) are rotatably arranged at two ends of the spraying pipe (32), and a central shaft of the fourth gear (31) which is close to one side of the mounting frame (12) extends into the mounting frame (12) and is sleeved with a fifth sprocket (30) which is meshed with the fourth chain (29) for transmission;
the inboard middle part integrated into one piece of shower (32) is formed with baffle (38), and threaded rod (39) are installed in the both sides of baffle (38) all rotation, and threaded rod (39) are fixed continuous with corresponding fourth gear (31) after passing shower (32) along its pole length direction respectively, and the sliding baffle (40) that the symmetry set up have been cup jointed to the screw thread on every threaded rod (39) to the screw thread opposite direction of two threaded rods (39), in the downward sliding process of shower (32) along jar body (1) inner wall, drive two sliding baffle (40) rotatory through fourth gear (31) and rack (33) cooperation, and then make two sliding baffle (40) synchronous opposite movement.
2. The coal washing wastewater treatment device capable of being periodically self-cleaned according to claim 1, wherein: the spraying mechanism further comprises a cross rod (41) adjacent to the joint of the two filter screens (13), two ends of the cross rod (41) are fixed on the inner wall of the tank body (1), two bottoms of the two ends of the cross rod (41) are fixedly connected with connecting plates (43), a hanging rod (42) is connected between the two connecting plates (43), a plurality of hanging rings (44) are sleeved on the hanging rod (42) in a sliding manner, a third pipeline (36) sequentially penetrates through all the hanging rings (44) and then extends to be communicated with the spraying pipe (32), and two bifurcation pipes separated from the tail ends of the third pipeline (36) are respectively distributed on two sides of the partition plate (38).
3. The coal washing wastewater treatment device capable of being periodically self-cleaned according to claim 1, wherein: the water outlet pipe at the bottom of the tank body (1) is connected with a three-way electromagnetic valve (45), the middle part of the three-way electromagnetic valve (45) is connected with a water tank (5) through a first pipeline (6), a water level sensor is arranged in the water tank (5), and the water level sensor is electrically connected with the three-way electromagnetic valve (45).
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