CN113750642A - Sponge city sewage pretreatment system and pretreatment process - Google Patents

Sponge city sewage pretreatment system and pretreatment process Download PDF

Info

Publication number
CN113750642A
CN113750642A CN202111064336.0A CN202111064336A CN113750642A CN 113750642 A CN113750642 A CN 113750642A CN 202111064336 A CN202111064336 A CN 202111064336A CN 113750642 A CN113750642 A CN 113750642A
Authority
CN
China
Prior art keywords
fixedly connected
filter screen
wall
water
sewage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111064336.0A
Other languages
Chinese (zh)
Inventor
毕道广
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202111064336.0A priority Critical patent/CN113750642A/en
Publication of CN113750642A publication Critical patent/CN113750642A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D36/00Filter circuits or combinations of filters with other separating devices
    • B01D36/04Combinations of filters with settling tanks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/03Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62Regenerating the filter material in the filter
    • B01D29/64Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6407Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes
    • B01D29/6415Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes with a rotary movement with respect to the filtering element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62Regenerating the filter material in the filter
    • B01D29/70Regenerating the filter material in the filter by forces created by movement of the filter element

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The invention discloses a sponge city sewage pretreatment system which comprises a support column, wherein the top of the support column is fixedly connected with a water purification tank, and the inner walls of two sides of the water purification tank are respectively and rotatably connected with a same first rotating shaft and a same second rotating shaft. The invention has simple structure, the overlapping area of the first grid and the second grid is adjusted according to the size of impurities, the impurities with different sizes can be removed through the first grid and the second grid, the sewage after large-sized impurities are removed can pass through the third filter screen, the second filter screen and the first filter screen in sequence and is finally discharged through the water outlet pipe, so as to achieve the filtering function, the impurities with smaller volume in the sewage are removed, the first filter screen and the second filter screen are prevented from being blocked by the arrangement of the bristles, the sewage can be discharged into different settling tanks in sequence through the arrangement of the synchronous belt, and the sewage in the next settling tank which is already settled is discharged into the water storage tank in the rotating process, so that the operation is simple.

Description

Sponge city sewage pretreatment system and pretreatment process
Technical Field
The invention relates to the technical field of sponge city sewage pretreatment, in particular to a sponge city sewage pretreatment system and a pretreatment process.
Background
The sponge city is a new generation of city rainfall flood management concept, and refers to a city which can be like a sponge and has good elasticity in the aspects of adapting to environmental changes, coping with natural disasters caused by rainwater and the like, and the city can also be called as a water elasticity city. The international general term is 'low-impact development of rainwater system construction', water absorption, water storage, water seepage and water purification are carried out when raining, and the stored water is released and utilized when needed, so that rainwater can freely migrate in cities. From the ecological system service, the water ecological infrastructure is constructed through cross-scale construction and is constructed by combining various specific technologies, and the water ecological infrastructure is the core of a sponge city.
The sponge city needs to treat sewage, the sewage pretreatment is a pretreatment facility which is set according to the requirements of subsequent treatment processes on water quality before the sewage enters the traditional sedimentation, biological treatment and the like, and is the throat of a sewage treatment plant, and the pretreatment mainly comprises treatment facilities such as a grid, a screen, a grit chamber, a sand-water separator and the like for a municipal sewage centralized treatment plant and a sewage treatment plant dispersed in a pollution source. Before entering a centralized or decentralized sewage treatment plant, some industrial wastewater needs to be subjected to the general pretreatment, water quality and water quantity regulation treatment and other special pretreatments such as neutralization, wool fishing, pre-sedimentation, pre-aeration and the like. If the pretreatment process does not reach the standard, excessive grid slag is caused, and the loss of subsequent treatment equipment is large.
But current sewage pretreatment equipment can not adjust the grid according to the size of impurity, and then slowed down sewage pretreatment's efficiency, when filtering sewage, the condition of filter screen jam appears easily, need artifical clearance regularly, waste time and energy, and the efficiency of sewage pretreatment has further been reduced, when sewage is depositd at the sedimentation tank, still have sewage discharge and advance in the sedimentation tank, can cause the flow of sewage, reduce precipitation efficiency, because the precipitation needs a large amount of time, the possibility that sewage just is discharged completely without precipitation can appear, can cause pressure to subsequent process, so we provide a sewage pretreatment system and pretreatment process for sponge city, be used for solving the above-mentioned problem.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a sewage pretreatment system and a pretreatment process for sponge cities.
The purpose of the invention is realized by the following technical scheme: the utility model provides a sponge is sewage pretreatment system for city, includes the support column, the top fixedly connected with water purification case of support column, the both sides inner wall of water purification case rotates respectively and is connected with same first pivot and same second pivot, the bottom inner wall fixedly connected with second baffle and third baffle of water purification case, the top fixedly connected with first filter screen of second baffle, the top inner wall fixedly connected with first baffle of water purification case, the bottom fixedly connected with third filter screen of first baffle, the one side that first baffle and first filter screen are close to each other is provided with the filter assembly who is used for filtering sewage, the top inner wall fixedly connected with of water purification case has a plurality of fixed boxes, the bottom inner wall sliding connection of fixed box has the decontamination subassembly that is used for getting rid of large-scale impurity, the bottom fixedly connected with of water purification case is linked together the outlet pipe, the outer wall sliding connection of outlet pipe has the rotary drum, first pivot and second pivot transmission are connected, one side fixedly connected with cistern of support column, a plurality of bracing pieces of the bottom inner wall fixedly connected with of cistern, the top fixedly connected with setting tank of bracing piece, it is a plurality of one side fixedly connected with that the setting tank is close to each other is same places the board, the rotary drum is placed on placing the board, and is a plurality of the second delivery port has all been seted up to one side that the setting tank is close to each other, and is a plurality of one side that the setting tank is close to each other is provided with same drainage subassembly that is used for the drainage.
Preferably, the filter component includes that fixed cover establishes at the first drum of first pivot outer wall and fixed cover establishes the second drum at second pivot outer wall, the equal a plurality of mounting panels of fixedly connected with of outer wall of first drum and second drum, a plurality of bristles of one side fixedly connected with that the mounting panel was kept away from each other, one side sliding connection that first baffle and second baffle are close to each other has same second filter screen, the bottom and the brush hair of second filter screen are inconsistent, the brush hair is inconsistent with one side of first filter screen.
Preferably, decontamination subassembly includes first grid and the second grid of sliding connection at fixed box top inner wall, one side inner wall fixedly connected with fixed block of fixed box, first screw hole has been seted up at the top of first grid, a plurality of second screw holes have been seted up at the top of second grid, one side threaded connection of fixed box has the screw rod, the one end of screw rod run through fixed box and with second screw hole, first screw hole and fixed block threaded connection.
Preferably, the drainage subassembly includes the horizontal pole of fixed connection in the one side that a plurality of settling tanks are close to each other, and is a plurality of the same montant of one end fixedly connected with that the horizontal pole is close to each other, the top fixedly connected with cylinder of montant, a plurality of springs of cylindrical outer wall fixedly connected with, it is a plurality of the equal fixedly connected with riser of one end that the spring was kept away from each other, one side fixedly connected with block rubber of riser, block rubber and second delivery port looks adaptation, rotary drum bottom fixedly connected with bull stick, the bull stick runs through places board and fixedly connected with plectane, two arcs of bottom fixedly connected with of plectane.
Preferably, one side of the water purification tank is fixedly connected with a water inlet pipe communicated with the water purification tank, one side of the water purification tank is fixedly connected with an L-shaped connecting plate, and the bottom of the L-shaped connecting plate is connected with the top of the reservoir.
Preferably, one end of the first rotating shaft and one end of the second rotating shaft penetrate through the water purifying tank and are fixedly sleeved with a third synchronizing wheel and a second synchronizing wheel respectively, one side of the water purifying tank is fixedly connected with a motor, an output shaft of the motor penetrates through the water purifying tank and is fixedly connected with one end of the second rotating shaft, a spur gear is fixedly sleeved on the outer wall of the rotary drum, a first water outlet is formed in one side of the rotary drum, a fixed rod is rotatably connected to the bottom of the water purifying tank, a half gear is fixedly connected to the bottom of the fixed rod and is meshed with the spur gear, a second bevel gear is fixedly sleeved on the outer wall of the fixed rod, a supporting plate is fixedly connected to the bottom of the water purifying tank, a third rotating shaft is rotatably connected to the inside of the supporting plate, two ends of the third rotating shaft penetrate through the supporting plate and extend to two sides of the supporting plate respectively, and two ends of the third rotating shaft are fixedly connected with a first bevel gear and a first synchronizing wheel respectively, the second bevel gear is meshed with the first bevel gear, and the outer walls of the first synchronous wheel, the second synchronous wheel and the third synchronous wheel are sleeved with the same synchronous belt.
Preferably, the outer wall of the water outlet pipe is fixedly connected with two arc-shaped sliding blocks which are symmetrically arranged, the inner wall of the rotary drum is fixedly connected with an annular sliding rail matched with the arc-shaped sliding blocks, the annular sliding rail is connected with the arc-shaped sliding blocks in a sliding manner, the outer wall of the water outlet pipe is fixedly sleeved with a rubber ring, and the outer wall of the rubber ring is abutted to the inner wall of the rotary drum.
Preferably, the first baffle and the second baffle are close to each other two limiting plates that the equal fixedly connected with symmetry in one side set up, two the same first slide rail of one side fixedly connected with that the limiting plate is close to each other, the equal fixedly connected with in both ends of second filter screen and the first slider of first slide rail looks adaptation, first slide rail and first slider sliding connection, two extension springs that the bottom fixedly connected with symmetry of second filter screen set up, two the bottom of extension spring all with the top fixed connection of the limiting plate that is located the below.
Preferably, the top inner wall of the fixed box is fixedly connected with two second sliding rails which are symmetrically arranged, the tops of the second grating and the first grating are fixedly connected with second sliding blocks matched with the second sliding rails, and the second sliding blocks are connected with the second sliding rails in a sliding manner
The sponge city sewage pretreatment system and pretreatment process comprises the following steps:
s1, removing large-scale impurities, wherein sewage enters a water purification tank through a water inlet pipe, most of the large-scale impurities cannot pass through the water purification tank after passing through a first grating and a second grating to achieve the function of removing the large-scale impurities, when the overlapping area of the first grating and the second grating needs to be adjusted according to the size of the impurities, a screw rod is rotated to be separated from the first grating and the second grating, the first grating and the second grating slide to adjust the overlapping area of the first grating and the second grating, so that the impurities with different sizes can be removed, and after the adjustment is completed, the screw rod is screwed to pass through a second threaded hole and a first threaded hole and is in threaded connection with a fixed block;
s2, filtering the sewage, wherein the sewage with large impurities removed passes through the third filter screen, the second filter screen and the first filter screen in sequence and is finally discharged through the water outlet pipe, thereby achieving the filtering function, removing impurities with smaller volume in the sewage, starting a motor, driving a second rotating shaft to rotate by an output shaft of the motor, driving a second cylinder and a second synchronous wheel to rotate by the second rotating shaft, driving a synchronous belt to rotate by the second synchronous wheel, driving a third synchronous wheel and a first synchronous wheel to rotate by the synchronous belt, driving a first rotating shaft to rotate by the third synchronous wheel, driving a first cylinder to rotate by the first rotating shaft, driving a mounting plate to rotate by the first cylinder and the second cylinder, driving the bristles to rotate by the mounting plate, so as to brush the second filter screen and the first filter screen, the second filter screen can move in the vertical direction under the push of the brush hairs, the tension spring is continuously stretched, so that the first filter screen and the second filter screen are prevented from being blocked, and the sewage is conveniently filtered;
s3, discharging sewage, wherein the filtered sewage flows into the rotary drum and then is discharged into a corresponding sedimentation tank through a first water outlet to be sedimentated, in the discharging process, the first synchronous wheel drives a third rotary shaft to rotate, the third rotary shaft drives a first bevel gear to rotate, the first bevel gear drives a second bevel gear to rotate, the second bevel gear drives a fixed rod to rotate, the fixed rod drives a half gear to rotate, the half gear drives a spur gear to rotate, the spur gear drives the rotary drum to rotate, the rotary drum drives a rotary rod to rotate, the rotary rod drives a circular plate to rotate, the circular plate drives an arc plate to rotate, the arc plate pushes a rubber block on one side of the sedimentation tank which is to receive water at the next side, the sedimentated water is discharged, the water is convenient to receive water, the arc plate pushes the rubber block, the rubber block drives a vertical plate to move transversely, the vertical plate extrudes a spring, and the next sedimentation tank which is to receive water at the next time discharges the water into a water storage tank through the second water outlet, the pretreatment of sewage is realized.
The invention has the following advantages:
1. according to the invention, large-scale impurities are removed, sewage enters the water purification tank through the water inlet pipe, most of the large-scale impurities cannot pass through the water purification tank after passing through the first grating and the second grating, the screw is rotated to separate from the first grating and the second grating when the overlapping area of the first grating and the second grating is required to be adjusted according to the size of the impurities, the overlapping area of the first grating and the second grating can be adjusted by sliding the first grating and the second grating, so that the impurities with different sizes can be removed, and after the adjustment is finished, the screw is screwed, so that the screw passes through the second threaded hole and the first threaded hole and is in threaded connection with the fixed block;
2. in the invention, sewage is filtered, the sewage with large impurities removed is discharged through a water outlet pipe sequentially through a third filter screen, a second filter screen and a first filter screen, so that the filtering function is achieved, the impurities with smaller volume in the sewage are removed, a motor is started, an output shaft of the motor drives a second rotating shaft to rotate, the second rotating shaft drives a second cylinder and a second synchronous wheel to rotate, the second synchronous wheel drives a synchronous belt to rotate, the synchronous belt drives a third synchronous wheel and a first synchronous wheel to rotate, the third synchronous wheel drives a first rotating shaft to rotate, the first rotating shaft drives a first cylinder to rotate, the first cylinder and the second cylinder further drive a mounting plate to rotate, the mounting plate drives bristles to rotate, so that the second filter screen and the first filter screen are scrubbed, the second filter screen moves in the vertical direction under the pushing of the bristles, so that the tension spring is continuously stretched, and the first filter screen and the second filter screen are prevented from being blocked, thereby facilitating the realization of sewage filtration;
3. in the invention, the sewage is discharged, the filtered sewage flows into the rotary drum and is discharged into a corresponding sedimentation tank through the first water outlet for sedimentation, in the discharging process, the first synchronous wheel drives the third rotary shaft to rotate, the third rotary shaft drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the fixed rod to rotate, the fixed rod drives the half gear to rotate, the half gear drives the spur gear to rotate, the spur gear drives the rotary drum to rotate, the rotary drum drives the rotary rod to rotate, the rotary rod drives the circular plate to rotate, the circular plate drives the arc plate to rotate, the arc plate pushes the rubber block on one side of the sedimentation tank to be connected with water on the lower side to discharge the settled water, the water is convenient to be connected with water, the arc plate pushes the rubber block, the rubber block drives the vertical plate to move transversely, the vertical plate pushes the spring, and the next sedimentation tank to be connected with water at the moment discharges the water into the water storage tank through the second water outlet, the pretreatment of sewage is realized.
The invention has simple structure, the overlapping area of the first grid and the second grid is adjusted according to the size of impurities, the impurities with different sizes can be removed through the first grid and the second grid, the sewage after large-sized impurities are removed can pass through the third filter screen, the second filter screen and the first filter screen in sequence and is finally discharged through the water outlet pipe, so as to achieve the filtering function, the impurities with smaller volume in the sewage are removed, the first filter screen and the second filter screen are prevented from being blocked by the arrangement of the bristles, the sewage can be discharged into different settling tanks in sequence through the arrangement of the synchronous belt, and the sewage in the next settling tank which is already settled is discharged into the water storage tank in the rotating process, so that the operation is simple.
Drawings
FIG. 1 is a rear view of the present invention;
FIG. 2 is a front sectional view of a fresh water tank of the present invention;
FIG. 3 is a view showing the connection between the mounting plate and the brush bristles in the present invention;
FIG. 4 is a front view of a second screen according to the present invention;
FIG. 5 is a front sectional view of the fixing case of the present invention;
FIG. 6 is a side view of a first grid according to the present invention;
FIG. 7 is a side view of a second grid according to the present invention;
FIG. 8 is a coupling view of a first bevel gear and a second bevel gear according to the present invention;
FIG. 9 is a front cross-sectional view of a settling tank of the present invention;
FIG. 10 is an enlarged view of portion A of the present invention;
FIG. 11 is a schematic view showing the connection between the rotating cylinder and the circular plate in the present invention;
FIG. 12 is a top view of a settling tank and reservoir of the present invention;
FIG. 13 is a front cross-sectional view of the water outlet tube and bowl of the present invention;
FIG. 14 is a top view of the water outlet tube and bowl of the present invention;
FIG. 15 is a partial front view of the fresh water tank of the present invention;
in the figure, 1, a support column; 2. a water inlet pipe; 3. a water purifying tank; 4. a motor; 5. an L-shaped connecting plate; 6. a settling tank; 7. a reservoir; 8. a fixing box; 9. a first baffle plate; 10. a first cylinder; 11. a first rotating shaft; 12. a first filter screen; 13. a second filter screen; 14. a second baffle; 15. a water outlet pipe; 16. a spur gear; 17. a rotating drum; 18. a first water outlet; 19. fixing the rod; 20. a first bevel gear; 21. a second bevel gear; 22. a half gear; 23. a second cylinder; 24. a second rotating shaft; 25. a third filter screen; 26. a third baffle plate; 27. a first grid; 28. a second grid; 29. mounting a plate; 30. brushing; 31. a first slide rail; 32. a first slider; 33. a tension spring; 34. a limiting plate; 35. a fixed block; 36. a second slider; 37. a second slide rail; 38. a screw; 39. a first threaded hole; 40. a second threaded hole; 41. a support plate; 42. a third rotating shaft; 43. a first synchronizing wheel; 44. a synchronous belt; 45. a support bar; 46. placing the plate; 47. a rotating rod; 48. a circular plate; 49. a spring; 50. a cylinder; 51. a vertical rod; 52. a cross bar; 53. a vertical plate; 54. a rubber block; 55. a second water outlet; 56. an arc-shaped plate; 57. an annular slide rail; 58. an arc-shaped sliding block; 59. a rubber ring; 60. a second synchronizing wheel; 61. and a third synchronizing wheel.
Detailed Description
The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:
the first embodiment is as follows: as shown in fig. 1-15, a sponge urban sewage pretreatment system comprises a support column 1, a purified water tank 3 is fixedly connected to the top of the support column 1, the inner walls of the two sides of the purified water tank 3 are respectively and rotatably connected with a same first rotating shaft 11 and a same second rotating shaft 24, the inner wall of the bottom of the purified water tank 3 is fixedly connected with a second baffle 14 and a third baffle 26, the top of the second baffle 14 is fixedly connected with a first filter screen 12, the inner wall of the top of the purified water tank 3 is fixedly connected with a first baffle 9, the bottom of the first baffle 9 is fixedly connected with a third filter screen 25, one side of the first baffle 9 and the first filter screen 12 close to each other is provided with a filter assembly for filtering sewage, the inner wall of the top of the purified water tank 3 is fixedly connected with a plurality of fixing boxes 8, the inner wall of the bottom of the fixing boxes 8 is slidably connected with a decontamination assembly for removing large-sized impurities, the bottom of the purified water tank 3 is fixedly connected with a water outlet pipe 15, outer wall sliding connection of outlet pipe 15 has rotary drum 17, first pivot 11 and the 24 transmission of second pivot are connected, one side fixedly connected with cistern 7 of support column 1, a plurality of bracing pieces 45 of the bottom inner wall fixedly connected with of cistern 7, the top fixedly connected with setting tank 6 of bracing piece 45, one side fixedly connected with that a plurality of setting tanks 6 are close to each other is same places board 46, rotary drum 17 is placed on placing board 46, second delivery port 55 has all been seted up to one side that a plurality of setting tanks 6 are close to each other, one side that a plurality of setting tanks 6 are close to each other is provided with same drainage component that is used for the drainage.
According to the invention, the filtering component comprises a first cylinder 10 fixedly sleeved on the outer wall of a first rotating shaft 11 and a second cylinder 23 fixedly sleeved on the outer wall of a second rotating shaft 24, the outer walls of the first cylinder 10 and the second cylinder 23 are fixedly connected with a plurality of mounting plates 29, one sides, far away from each other, of the mounting plates 29 are fixedly connected with a plurality of bristles 30, one side, close to each other, of a first baffle plate 9 and one side, close to each other, of a second baffle plate 14 are connected with a same second filter screen 13 in a sliding mode, the bottom of the second filter screen 13 is abutted against the bristles 30, and the bristles 30 are abutted against one side of the first filter screen 12.
According to the invention, the decontamination assembly comprises a first grating 27 and a second grating 28 which are slidably connected to the inner wall of the top of the fixing box 8, a fixing block 35 is fixedly connected to the inner wall of one side of the fixing box 8, a first threaded hole 39 is formed in the top of the first grating 27, a plurality of second threaded holes 40 are formed in the top of the second grating 28, a screw 38 is in threaded connection with one side of the fixing box 8, and one end of the screw 38 penetrates through the fixing box 8 and is in threaded connection with the second threaded holes 40, the first threaded holes 39 and the fixing block 35.
According to the invention, the drainage assembly comprises cross rods 52 fixedly connected to the mutually close sides of the plurality of settling tanks 6, one mutually close ends of the plurality of cross rods 52 are fixedly connected with the same vertical rod 51, the top of the vertical rod 51 is fixedly connected with a cylinder 50, the outer wall of the cylinder 50 is fixedly connected with a plurality of springs 49, one mutually far ends of the plurality of springs 49 are fixedly connected with a vertical plate 53, one side of the vertical plate 53 is fixedly connected with a rubber block 54, the rubber block 54 is matched with a second water outlet 55, the bottom of the rotary drum 17 is fixedly connected with a rotary rod 47, the rotary rod 47 penetrates through the placing plate 46 and is fixedly connected with a circular plate 48, and the bottom of the circular plate 48 is fixedly connected with two arc-shaped plates 56.
In the invention, one side of a water purifying tank 3 is fixedly connected with a communicated water inlet pipe 2, one side of the water purifying tank 3 is fixedly connected with an L-shaped connecting plate 5, and the bottom of the L-shaped connecting plate 5 is connected with the top of a reservoir 7.
In the invention, one end of a first rotating shaft 11 and one end of a second rotating shaft 24 both penetrate through a water purifying tank 3 and are respectively and fixedly sleeved with a third synchronizing wheel 61 and a second synchronizing wheel 60, one side of the water purifying tank 3 is fixedly connected with a motor 4, an output shaft of the motor 4 penetrates through the water purifying tank 3 and is fixedly connected with one end of the second rotating shaft 24, the outer wall of a rotating drum 17 is fixedly sleeved with a spur gear 16, one side of the rotating drum 17 is provided with a first water outlet 18, the bottom of the water purifying tank 3 is rotatably connected with a fixed rod 19, the bottom of the fixed rod 19 is fixedly connected with a half gear 22, the half gear 22 is meshed with the spur gear 16, the outer wall of the fixed rod 19 is fixedly sleeved with a second bevel gear 21, the bottom of the water purifying tank 3 is fixedly connected with a supporting plate 41, the inside of the supporting plate 41 is rotatably connected with a third rotating shaft 42, two ends of the third rotating shaft 42 respectively penetrate through the supporting plate 41 and extend to two sides of the supporting plate 41, two ends of the third rotating shaft 42 are respectively and fixedly connected with a first bevel gear 20 and a first synchronizing wheel 43, the second bevel gear 21 is engaged with the first bevel gear 20, and the outer walls of the first synchronous wheel 43, the second synchronous wheel 60 and the third synchronous wheel 61 are sleeved with the same synchronous belt 44.
According to the invention, the outer wall of the water outlet pipe 15 is fixedly connected with two arc-shaped sliding blocks 58 which are symmetrically arranged, the inner wall of the rotary drum 17 is fixedly connected with an annular sliding rail 57 matched with the arc-shaped sliding blocks 58, the annular sliding rail 57 is in sliding connection with the arc-shaped sliding blocks 58, the outer wall of the water outlet pipe 15 is fixedly sleeved with a rubber ring 59, and the outer wall of the rubber ring 59 is abutted against the inner wall of the rotary drum 17.
In the invention, two limiting plates 34 which are symmetrically arranged are fixedly connected to the mutually adjacent sides of the first baffle 9 and the second baffle 14, the same first slide rail 31 is fixedly connected to the mutually adjacent sides of the two limiting plates 34, the first slide block 32 which is matched with the first slide rail 31 is fixedly connected to both ends of the second filter screen 13, the first slide rail 31 is slidably connected with the first slide block 32, the two symmetrically arranged tension springs 33 are fixedly connected to the bottom of the second filter screen 13, and the bottoms of the two tension springs 33 are fixedly connected with the tops of the limiting plates 34 which are positioned below.
In the invention, the inner wall of the top of the fixed box 8 is fixedly connected with two second slide rails 37 which are symmetrically arranged, the tops of the second grating 28 and the first grating 27 are both fixedly connected with second slide blocks 36 which are matched with the second slide rails 37, and the second slide blocks 36 are connected with the second slide rails 37 in a sliding way
A pretreatment system and a pretreatment process for sponge city sewage comprise the following steps: s1, removing large impurities, namely, enabling sewage to enter a water purification tank 3 through a water inlet pipe 2, enabling most of the large impurities to achieve the function of removing the large impurities due to the fact that the large impurities cannot pass through the first grating 27 and the second grating 28, rotating a screw 38 when the overlapping area of the first grating 27 and the second grating 28 needs to be adjusted according to the size of the impurities, enabling the screw 38 to be separated from the first grating 27 and the second grating 28, sliding the first grating 27 and the second grating 28, adjusting the overlapping area of the first grating 27 and the second grating 28, further removing the impurities with different sizes, and screwing the screw 38 after the adjustment is completed to enable the screw 38 to pass through a second threaded hole 40 and a first threaded hole 39 and be in threaded connection with a fixing block 35;
s2, filtering the sewage, wherein the sewage with large impurities removed passes through the third filter screen 25, the second filter screen 13 and the first filter screen 12 in sequence and is finally discharged through the water outlet pipe 15, so as to achieve the filtering function, and the impurities with smaller volume in the sewage are removed, the motor 4 is started, the output shaft of the motor 4 drives the second rotating shaft 24 to rotate, the second rotating shaft 24 drives the second cylinder 23 and the second synchronous wheel 60 to rotate, the second synchronous wheel 60 drives the synchronous belt 44 to rotate, the synchronous belt 44 drives the third synchronous wheel 61 and the first synchronous wheel 43 to rotate, the third synchronous wheel 61 drives the first rotating shaft 11 to rotate, the first rotating shaft 11 drives the first cylinder 10 to rotate, the first cylinder 10 and the second cylinder 23 further drive the mounting plate 29 to rotate, the mounting plate 29 drives the bristles 30 to rotate, so as to scrub the second filter screen 13 and the first filter screen 12, the second filter screen 13 can move in the vertical direction under the push of the bristles 30, the tension spring 33 is continuously stretched, so that the first filter screen 12 and the second filter screen 13 are prevented from being blocked, and the sewage is conveniently filtered;
s3, discharging the sewage, wherein the filtered sewage flows into the rotary drum 17 and then is discharged into the corresponding sedimentation tank 6 through the first water outlet 18 for sedimentation, in the discharging process, the first synchronizing wheel 43 drives the third rotary shaft 42 to rotate, the third rotary shaft 42 drives the first bevel gear 20 to rotate, the first bevel gear 20 drives the second bevel gear 21 to rotate, the second bevel gear 21 drives the fixed rod 19 to rotate, the fixed rod 19 drives the half gear 22 to rotate, the half gear 22 drives the spur gear 16 to rotate, the spur gear 16 drives the rotary drum 17 to rotate, the rotary drum 17 drives the rotary rod 47 to rotate, the rotary rod 47 drives the circular plate 48 to rotate, the circular plate 48 drives the arc-shaped plate 56 to rotate, the arc-shaped plate 56 pushes the rubber block 54 on the side of the sedimentation tank 6 to receive water to discharge the settled water conveniently, the arc-shaped plate 56 pushes the rubber block 54, and the rubber block 54 drives the vertical plate 53 to move transversely, the riser 53 extrudes the spring 49, and the next sediment tank 6 to receive water is discharged into the reservoir 7 through the second water outlet 55, so that the sewage is pretreated.
The working principle is as follows: removing large impurities, wherein sewage enters the water purification tank 3 through the water inlet pipe 2, most of the large impurities can achieve the function of removing the large impurities due to the fact that the large impurities cannot pass through the first grating 27 and the second grating 28, when the overlapping area of the first grating 27 and the second grating 28 needs to be adjusted according to the size of the impurities, the screw rod 38 is rotated to enable the screw rod 38 to be separated from the first grating 27 and the second grating 28, the first grating 27 and the second grating 28 are slid to adjust the overlapping area of the first grating 27 and the second grating 28, further impurities with different sizes can be removed, after the adjustment is completed, the screw rod 38 is screwed to enable the screw rod 38 to pass through the second threaded hole 40 and the first threaded hole 39 and be in threaded connection with the fixing block 35, the sewage is filtered, the sewage with the large impurities removed can pass through the third filter screen 25, the second filter screen 13 and the first filter screen 12 in sequence and finally is discharged through the water outlet pipe 15, thereby achieving the filtering function, removing the impurities with smaller volume in the sewage, starting the motor 4, driving the second rotating shaft 24 to rotate by the output shaft of the motor 4, driving the second cylinder 23 and the second synchronizing wheel 60 to rotate by the second rotating shaft 24, driving the synchronous belt 44 to rotate by the second synchronizing wheel 60, driving the third synchronizing wheel 61 and the first synchronizing wheel 43 to rotate by the synchronous belt 44, driving the first rotating shaft 11 to rotate by the third synchronizing wheel 61, driving the first rotating shaft 11 to rotate by the first rotating shaft 10, driving the first cylinder 10 and the second cylinder 23 to further drive the mounting plate 29 to rotate, driving the brush bristles 30 to rotate by the mounting plate 29, further brushing the second filter screen 13 and the first filter screen 12, driving the second filter screen 13 to move in the vertical direction under the push of the brush bristles 30, further stretching the tension spring 33, preventing the first filter screen 12 and the second filter screen 13 from being blocked, further facilitating the filtering of the sewage, discharging the sewage, and the sewage after being filtered can flow into the rotating drum 17, then the water is discharged into the corresponding settling tank 6 through the first water outlet 18 for settling, in the discharging process, the first synchronous wheel 43 drives the third rotating shaft 42 to rotate, the third rotating shaft 42 drives the first bevel gear 20 to rotate, the first bevel gear 20 drives the second bevel gear 21 to rotate, the second bevel gear 21 drives the fixed rod 19 to rotate, the fixed rod 19 drives the half gear 22 to rotate, the half gear 22 drives the spur gear 16 to rotate, the spur gear 16 drives the rotary drum 17 to rotate, the rotary drum 17 drives the rotary rod 47 to rotate, the rotary rod 47 drives the circular plate 48 to rotate, the circular plate 48 drives the arc-shaped plate 56 to rotate, the arc-shaped plate 56 pushes the rubber block 54 on the side of the settling tank 6 to be ready to receive water at the lower side, the settled water is discharged, the water is convenient to receive water, the rubber block 56 pushes the rubber block 54, the rubber block 54 drives the vertical plate 53 to move transversely, the vertical plate 53 pushes the spring 49, at this time, the next settling tank 6 to be ready to receive water discharges the water into the water reservoir through the second water outlet 55, the pretreatment of sewage is realized.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides a sewage pretreatment systems is used in sponge city, includes support column (1), its characterized in that: the top fixedly connected with water purification case (3) of support column (1), the both sides inner wall of water purification case (3) rotates respectively and is connected with same first pivot (11) and same second pivot (24), the bottom inner wall fixedly connected with second baffle (14) and third baffle (26) of water purification case (3), the top fixedly connected with first filter screen (12) of second baffle (14), the top inner wall fixedly connected with first baffle (9) of water purification case (3), the bottom fixedly connected with third filter screen (25) of first baffle (9), one side that first baffle (9) and first filter screen (12) are close to each other is provided with the filter assembly who is used for filtering sewage, the top inner wall fixedly connected with a plurality of stationary boxes (8) of water purification case (3), the bottom inner wall sliding connection of stationary box (8) has the decontamination subassembly that is used for getting rid of large-scale impurity, the bottom of the water purifying tank (3) is fixedly connected with a water outlet pipe (15) communicated with the water purifying tank, the outer wall of the water outlet pipe (15) is connected with a rotary drum (17) in a sliding way, the rotary drum (17), the first rotating shaft (11) and the second rotating shaft (24) are connected in a transmission way, one side of the supporting column (1) is fixedly connected with a reservoir (7), the inner wall of the bottom of the reservoir (7) is fixedly connected with a plurality of supporting rods (45), the top of the supporting rod (45) is fixedly connected with a settling tank (6), one side of each settling tank (6) close to each other is fixedly connected with the same placing plate (46), the rotary drum (17) is placed on the placing plate (46), the second water outlets (55) are formed in the mutually close sides of the plurality of settling tanks (6), and the same drainage assembly for draining water is arranged on the mutually close sides of the plurality of settling tanks (6).
2. The sponge municipal sewage pretreatment system according to claim 1, wherein: the filter assembly comprises a first cylinder (10) and a second cylinder (23), wherein the first cylinder (10) and the fixed sleeve are fixedly arranged on the outer wall of a first rotating shaft (11), the second cylinder (23) is fixedly arranged on the outer wall of a second rotating shaft (24), a plurality of mounting plates (29) are fixedly connected with the outer wall of the first cylinder (10) and the outer wall of the second cylinder (23), a plurality of bristles (30) are fixedly connected with one side of the mounting plates (29), the first baffle (9) and the second baffle (14) are mutually close to one side of the first filter screen (13), the bottom of the second filter screen (13) is inconsistent with the bristles (30), and the bristles (30) are inconsistent with one side of the first filter screen (12).
3. The sponge municipal sewage pretreatment system according to claim 1, wherein: decontamination subassembly includes first grid (27) and second grid (28) of sliding connection at fixed box (8) top inner wall, one side inner wall fixedly connected with fixed block (35) of fixed box (8), first screw hole (39) have been seted up at the top of first grid (27), a plurality of second screw holes (40) have been seted up at the top of second grid (28), one side threaded connection of fixed box (8) has screw rod (38), the one end of screw rod (38) run through fixed box (8) and with second screw hole (40), first screw hole (39) and fixed block (35) threaded connection.
4. The sponge municipal sewage pretreatment system according to claim 1, wherein: drainage component includes horizontal pole (52) of fixed connection in the one side that a plurality of settling tanks (6) are close to each other, and is a plurality of the same montant (51) of one end fixedly connected with that horizontal pole (52) are close to each other, the top fixedly connected with cylinder (50) of montant (51), a plurality of springs (49) of outer wall fixedly connected with of cylinder (50), and is a plurality of the equal fixedly connected with riser (53) of one end that spring (49) kept away from each other, one side fixedly connected with block rubber (54) of riser (53), block rubber (54) and second delivery port (55) looks adaptation, rotary drum (17) bottom fixedly connected with bull stick (47), bull stick (47) run through and place board (46) and fixedly connected with plectane (48), two arc boards (56) of bottom fixedly connected with of plectane (48).
5. The sponge municipal sewage pretreatment system according to claim 1, wherein: one side fixedly connected with of water purification case (3) is linked together inlet tube (2), one side fixedly connected with L type connecting plate (5) of water purification case (3), the bottom of L type connecting plate (5) is connected with the top of cistern (7).
6. The sponge municipal sewage pretreatment system according to claim 1, wherein: the one end of first pivot (11) and second pivot (24) all runs through water purification case (3) and fixed cover respectively is equipped with third synchronizing wheel (61) and second synchronizing wheel (60), one side fixedly connected with motor (4) of water purification case (3), the output shaft of motor (4) run through water purification case (3) and with the one end fixed connection of second pivot (24), the fixed cover of outer wall of rotary drum (17) is equipped with spur gear (16), first delivery port (18) have been seted up to one side of rotary drum (17), the bottom rotation of water purification case (3) is connected with dead lever (19), the bottom fixedly connected with half gear (22) of dead lever (19), half gear (22) mesh with spur gear (16) mutually, the fixed cover of outer wall of dead lever (19) is equipped with second bevel gear (21), the bottom fixedly connected with backup pad (41) of water purification case (3), the inside of backup pad (41) is rotated and is connected with third pivot (42), the both ends of third pivot (42) run through backup pad (41) respectively and extend to the both sides of backup pad (41), the both ends of third pivot (42) are first bevel gear (20) of fixedly connected with and first synchronizing wheel (43) respectively, second bevel gear (21) and first bevel gear (20) mesh mutually, the outer wall cover of first synchronizing wheel (43), second synchronizing wheel (60) and third synchronizing wheel (61) is equipped with same hold-in range (44).
7. The sponge municipal sewage pretreatment system according to claim 1, wherein: the outer wall fixedly connected with of outlet pipe (15) two arc slider (58) that the symmetry set up, the inner wall fixedly connected with of rotary drum (17) and the annular slide rail (57) of arc slider (58) looks adaptation, annular slide rail (57) and arc slider (58) sliding connection, the outer wall fixed cover of outlet pipe (15) is equipped with rubber circle (59), the outer wall of rubber circle (59) is inconsistent with the inner wall of rotary drum (17).
8. The sponge municipal sewage pretreatment system according to claim 2, wherein: two limiting plates (34) that the equal fixedly connected with symmetry in one side that first baffle (9) and second baffle (14) are close to each other set up, two the same first slide rail (31) of one side fixedly connected with that limiting plate (34) are close to each other, the equal fixedly connected with in both ends of second filter screen (13) and first slider (32) of first slide rail (31) looks adaptation, first slide rail (31) and first slider (32) sliding connection, two extension springs (33) that the bottom fixedly connected with symmetry of second filter screen (13) set up, two the bottom of extension spring (33) all with the top fixed connection of limiting plate (34) that is located the below.
9. The sponge municipal sewage pretreatment system according to claim 3, wherein: the top inner wall fixedly connected with of fixed box (8) two second slide rails (37) that the symmetry set up, the equal fixedly connected with in top of second grid (28) and first grid (27) and second slide block (36) of second slide rail (37) looks adaptation, second slide block (36) and second slide rail (37) sliding connection.
10. The pretreatment process of the pretreatment system for sponge municipal sewage according to claims 1 to 9, wherein: it comprises the following steps:
s1, removing large impurities, namely, enabling sewage to enter a water purification tank (3) through a water inlet pipe (2), enabling most of the large impurities to achieve the function of removing the large impurities due to the fact that the large impurities cannot pass through a first grating (27) and a second grating (28), and adjusting the overlapping area of the first grating (27) and the second grating (28) according to the sizes of the impurities;
s2, filtering sewage, wherein the sewage with large impurities removed can sequentially pass through a third filter screen (25), a second filter screen (13) and a first filter screen (12) and is finally discharged through a water outlet pipe (15), so that a filtering function is achieved, the impurities with smaller volume in the sewage are removed, a starting motor (4) drives a second rotating shaft (24) to rotate, the second rotating shaft (24) drives a mounting plate (29) to rotate, the mounting plate (29) drives bristles (30) to rotate, so that the second filter screen (13) and the first filter screen (12) are scrubbed, the second filter screen (13) can move in the vertical direction under the pushing of the bristles (30), so that a tension spring (33) is continuously stretched, the first filter screen (12) and the second filter screen (13) are prevented from being blocked, and the filtering of the sewage is convenient to realize;
s3, discharging sewage, wherein the filtered sewage flows into the rotary drum (17) and then is discharged into the corresponding settling tank (6) through the first water outlet (18) to be settled, in the discharging process, the first synchronous wheel (43) drives the third rotary shaft (42) to rotate, the third rotary shaft (42) drives the half gear (22) to rotate, the half gear (22) drives the spur gear (16) to rotate, the spur gear (16) drives the rotary drum (17) to rotate, the rotary drum (17) drives the rotary rod (47) to rotate, the rotary rod (47) drives the circular plate (48) to rotate, the circular plate (48) drives the arc-shaped plate (56) to rotate, the arc-shaped plate (56) pushes the rubber block (54) on one side of the settling tank (6) which is to receive water at the next side, the settled water is discharged and convenient to receive the water, the arc-shaped plate (56) pushes the rubber block (54), and the rubber block (54) drives the vertical plate (53) to transversely move, the vertical plate (53) extrudes the spring (49), and at the moment, the next settling tank (6) which is about to receive water discharges water into the water storage tank (7) through the second water outlet (55), so that the pretreatment of sewage is realized.
CN202111064336.0A 2021-09-10 2021-09-10 Sponge city sewage pretreatment system and pretreatment process Pending CN113750642A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111064336.0A CN113750642A (en) 2021-09-10 2021-09-10 Sponge city sewage pretreatment system and pretreatment process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111064336.0A CN113750642A (en) 2021-09-10 2021-09-10 Sponge city sewage pretreatment system and pretreatment process

Publications (1)

Publication Number Publication Date
CN113750642A true CN113750642A (en) 2021-12-07

Family

ID=78795011

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111064336.0A Pending CN113750642A (en) 2021-09-10 2021-09-10 Sponge city sewage pretreatment system and pretreatment process

Country Status (1)

Country Link
CN (1) CN113750642A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115228190A (en) * 2022-08-23 2022-10-25 南京润克机械有限公司 Lubricating oil purification and recovery device
CN115591286A (en) * 2022-11-30 2023-01-13 江苏鲁班环保科技有限公司(Cn) Muddy water continuously settles formula separator based on sewage environmental protection handles

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209567942U (en) * 2019-03-05 2019-11-01 邱思雨 A kind of efficient industrial sewage processing unit
CN211735715U (en) * 2019-12-07 2020-10-23 海南太雅环保工程有限公司 Special nonmetal grid of underground equalizing basin
CN112551812A (en) * 2020-12-07 2021-03-26 漳州职业技术学院 Water quality treatment device and water quality treatment method
CN112624377A (en) * 2020-12-21 2021-04-09 苏州艾唯尔气体设备有限公司 Sewage treatment plant convenient to arrange mud
CN213648095U (en) * 2020-09-25 2021-07-09 辽东学院 High-efficient agitating unit is used in concrete processing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209567942U (en) * 2019-03-05 2019-11-01 邱思雨 A kind of efficient industrial sewage processing unit
CN211735715U (en) * 2019-12-07 2020-10-23 海南太雅环保工程有限公司 Special nonmetal grid of underground equalizing basin
CN213648095U (en) * 2020-09-25 2021-07-09 辽东学院 High-efficient agitating unit is used in concrete processing
CN112551812A (en) * 2020-12-07 2021-03-26 漳州职业技术学院 Water quality treatment device and water quality treatment method
CN112624377A (en) * 2020-12-21 2021-04-09 苏州艾唯尔气体设备有限公司 Sewage treatment plant convenient to arrange mud

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115228190A (en) * 2022-08-23 2022-10-25 南京润克机械有限公司 Lubricating oil purification and recovery device
CN115591286A (en) * 2022-11-30 2023-01-13 江苏鲁班环保科技有限公司(Cn) Muddy water continuously settles formula separator based on sewage environmental protection handles

Similar Documents

Publication Publication Date Title
CN113750642A (en) Sponge city sewage pretreatment system and pretreatment process
CN105617803A (en) Urban road electrostatic dust removal street lamp system
CN114920372A (en) Industrial wastewater regeneration system
CN111236406B (en) Intercepting well and using method thereof
CN113200621A (en) Urban resident drinking water supply system
CN108499179B (en) Physical filtration and distribution sewage collecting equipment
CN215195831U (en) Waste water treatment system for live pig farm
CN112592000B (en) Rainwater park recycling water treatment system
CN114249440A (en) A milipore filter group system for high turbidity waste water ultrafiltration handles
CN115253481A (en) Water purifying device for urban landscape water body
CN110898505B (en) Device and method for filtering sewage and cleaning filtering cylinder wall
CN210943914U (en) Sludge discharge device for sewage treatment
CN114232753A (en) Rain and sewage diversion treatment method and equipment for building construction site
CN220656562U (en) Industrial park sewage filtering treatment device
CN220814070U (en) Water storage mechanism for sponge city park
CN220928107U (en) Sponge city retaining drainage structures that possesses intelligent monitoring function
CN213885136U (en) Effluent treatment plant is used in gardens
CN218374179U (en) Rainwater collecting, purifying and filtering device
CN204569625U (en) A kind of intermediate water reuse system
CN218911705U (en) Drawer type road rainwater purification drainage device
CN219652741U (en) Energy-saving sewage treatment device for removing pollutants
CN216395497U (en) Chemical industry is with containing salt effluent treatment plant
CN217580380U (en) City park rainwater is collected and is purified retrieval and utilization device
CN216639206U (en) Distributed domestic sewage treatment device
CN220847976U (en) Anti-blocking structure for urban rainwater and sewage pipe network construction

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20211207