A sewage treatment apparatus

Abstract

The present application relates to a kind of sewage treatment equipment, including the flocculation barrel with stirring mechanism and cleaning mechanism in inside, the stirring mechanism includes the rotating shaft driven by motor, the rotating shaft is equipped with sliding channel, the spring I and vertical rod are equipped in the sliding channel, the vertical rod top is movably equipped with force mechanism, the rotating shaft both sides are uniformly equipped with the installation opening of accommodating driving gear, the driving gear is equipped with stirring rod radially, the vertical rod side wall is equipped with the gear teeth meshing with driving gear;The cleaning mechanism includes annular groove in the bottom edge of flocculation barrel, the annular groove is equipped with material collecting tray, the material collecting tray below is equipped with spring II, the material collecting tray inner bottom wall is equipped with round tube, the round tube is equipped with screw rod, the screw rod top end is connected with rotation through transmission mechanism, the flocculation barrel is also equipped with cylinder, the cylinder is equipped with the convex base for screw rod to pass through.The present application can facilitate the cleaning work of precipitate while improving mixing efficiency and effect.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment, and in particular to a wastewater treatment device. Background Technology

[0002] Currently, wastewater treatment generally involves adding flocculants to a flocculation tank. After the wastewater and the additives are thoroughly mixed, the particles in the water that are difficult to settle aggregate to form colloids, which then combine with impurities in the water to form larger flocs. The flocs increase in size and sink through adsorption, forming sediment in the flocculation tank.

[0003] The fixed position of the stirring paddle in the existing flocculation tank's mixing mechanism cannot effectively cover different areas inside, thus affecting the mixing efficiency and effect of the additives and wastewater. In addition, after the wastewater undergoes chemical sedimentation, the sediment needs to be treated, but cleaning the sediment at the bottom of the flocculation tank is time-consuming and laborious. Furthermore, the sediment adheres to the inner wall of the flocculation tank, requiring specialized tools to peel it off, making it inconvenient to clean the sediment in the flocculation tank. Summary of the Invention

[0004] The purpose of this invention is to provide a wastewater treatment device.

[0005] The technical problem of this invention is mainly solved by the following technical solution: A wastewater treatment device includes a flocculation tank. An inlet pipe, an outlet pipe, and a sewage discharge pipe I are sequentially arranged from top to bottom on the side wall of the flocculation tank. A stirring mechanism and a cleaning mechanism are installed inside the flocculation tank. The stirring mechanism includes a rotating shaft driven by a motor located inside the flocculation tank. A sliding channel communicating with the outer top of the rotating shaft is provided inside the rotating shaft. A spring I is provided at the bottom of the sliding channel. A vertical rod is provided in the sliding channel above the spring I. A top plate connected to the top of the vertical rod is provided above the rotating shaft. A force-applying mechanism is movably arranged above the top plate. Installation openings communicating with the sliding channel are evenly arranged on both sides of the rotating shaft. A drive gear is fixed in the installation opening via a movable shaft. A stirring rod is radially arranged on the outer wall of the drive gear. Gear teeth meshing with the corresponding drive gears are evenly arranged on both sides of the vertical rod. The cleaning mechanism includes an annular groove located at the bottom edge of the flocculation tank, an annular collection tray is provided in the annular groove, a spring II is provided below the collection tray, an annular plate is also provided at the bottom of the collection tray, a T-shaped rod connected to the annular plate is provided at the bottom of the collection tray, a circular tube passing through the annular plate is also provided on the bottom wall of the collection tray, a screw extending to the outside of the flocculation tank is provided in the circular tube, the top end of the screw is movably connected to a rotating shaft through a transmission mechanism, a cylinder is also provided at the top of the flocculation tank, and a protrusion for the screw to pass through is provided on the inner side wall of the cylinder.

[0006] Preferably, the bottom wall of the flocculation tank has a conical structure, and a connecting pipe is provided in the bottom wall of the flocculation tank to connect the bottom of the annular groove with the bottom of the flocculation tank. A solenoid valve is provided on the connecting pipe.

[0007] Preferably, the height of the outer sidewall of the collection tray is lower than the height of its inner sidewall, wherein the top of the outer sidewall of the collection tray is located below the water outlet pipe, the bottom of the collection tray is located inside the top opening of the annular groove, and the top of the collection tray extends into the bottom opening of the flocculation tank.

[0008] Preferably, the top end of the circular tube extends to the outer side of the top of the collecting pan, and the distance between the top end of the outer sidewall of the collecting pan and the top end of the circular tube is less than the distance between the boss and the bottom end of the cylinder.

[0009] Preferably, the force-applying mechanism includes a bracket located at the top of the flocculation tank, an electric push rod is provided on the bracket, a mounting seat is provided on the output shaft of the electric push rod, a receiving groove with an arc-shaped cross section is provided at the bottom of the mounting seat, and a ball bearing extending to the outer side of its bottom and abutting against the top surface of the top plate is provided in the receiving groove.

[0010] Preferably, the annular plate and the bottom wall of the collection tray are provided with through holes for the corresponding round pipe and T-shaped rod to pass through. The bottom of the annular groove is provided with a groove for accommodating the bottom end of spring II. The top end of spring II is fixedly connected to the bottom of the collection tray. The bottom of the side wall of the flocculation bucket is also provided with a drain pipe II that communicates with the bottom of the annular groove.

[0011] Preferably, the transmission mechanism includes a driven gear disposed at the top of the lead screw, a driving gear corresponding to the driven gear disposed on the rotating shaft, and a transmission gear meshing with both the driven gear and the driving gear.

[0012] Preferably, a limiting rod is provided on the bottom end surface of the vertical rod and suspended in the sliding channel.

[0013] Preferably, the stirring paddle is located within the opening formed between multiple sets of lead screws, and the mounting opening is located above the bottom end of the vertical rod.

[0014] Preferably, the bottom of the cylinder is provided with a U-shaped notch corresponding to the sewage pipe I, and the protrusion is provided with a screw hole for screwing with the lead screw.

[0015] The beneficial effects of this invention are as follows: By changing the tilt state of the stirring paddle in the stirring mechanism, this invention can agitate and mix the liquid in different areas at the top and bottom of the flocculation tank, thereby improving the mixing efficiency and effect. At the same time, the working stirring mechanism drives the cylinder in the cleaning mechanism to move up and down, and cooperates with the stirring paddle that is closely attached to the bottom wall of the flocculation tank and rotates to prevent material adhesion and ensure that it fully contacts and mixes with the liquid. In addition, the stirring mechanism and the cylinder change the position of the collection plate in the annular groove to discharge the impurities scraped off by the cylinder and agitated by the stirring paddle, thereby facilitating the cleaning of sediment in the flocculation tank. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 yes Figure 2 Enlarged view of point B in the middle; Figure 5 yes Figure 4 A schematic diagram of the structure in another state.

[0017] In the diagram: 1. Flocculation tank, 2. Water outlet pipe, 3. Sewage pipe I, 4. Stirring mechanism, 41. Motor, 42. Rotating shaft, 43. Sliding channel, 44. Spring I, 45. Vertical rod, 46. Top plate, 47. Force application mechanism, 471. Bracket, 472. Electric push rod, 473. Mounting seat, 474. Ball bearing, 48. Mounting opening, 49. Drive gear, 410. Movable shaft, 411. Stirring paddle, 412. Gear teeth, 5. Cleaning mechanism, 51. Annular groove, 52. Collection tray, 53. Spring II, 54. Annular plate, 55. T-shaped rod, 56. Round tube, 57. Lead screw, 58. Transmission mechanism, 581. Driven gear, 582. Driving gear, 583. Transmission gear, 59. Cylinder, 510. Boss, 6. Connecting pipe, 7. Sewage pipe II, 8. Limiting rod, 9. U-shaped notch. Detailed Implementation

[0018] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0019] A wastewater treatment device includes a flocculation tank 1. An inlet pipe, an outlet pipe 2, and a sewage discharge pipe 13 are arranged sequentially from top to bottom on the side wall of the flocculation tank 1. A stirring mechanism 4 and a cleaning mechanism 5 are arranged inside the flocculation tank 1.

[0020] The stirring mechanism 4 includes a rotating shaft 42 driven by a motor 41 located inside the flocculation tank 1. A sliding channel 43 communicating with the outer top of the rotating shaft 42 is provided inside the rotating shaft 42. A spring I44 is provided at the bottom of the sliding channel 43. A vertical rod 45 is provided in the sliding channel 43 above the spring I44. A limiting rod 8 suspended in the sliding channel 43 is provided on the bottom surface of the vertical rod 45. A top plate 46 connected to the top of the vertical rod 45 is provided above the rotating shaft 42. A force-applying mechanism 47 is movably provided above the top plate 46. Mounting openings 48 communicating with the sliding channel 43 are evenly provided on both sides of the rotating shaft 42. A drive gear 49 is fixed in the mounting opening 48 through a movable shaft 410. A stirring rod 411 is radially provided on the outer wall of the drive gear 49. Gear teeth 412 meshing with the corresponding drive gear 49 are evenly provided on both sides of the vertical rod 45. The cleaning mechanism 5 includes an annular groove 51 located at the bottom edge of the flocculation tank 1. An annular collection tray 52 is provided in the annular groove 51. A spring II 53 is provided below the collection tray 52. ​​An annular plate 54 is also provided at the bottom of the collection tray 52. ​​A T-shaped rod 55 connected to the annular plate 54 is provided at the bottom of the collection tray 52. ​​A circular tube 56 passing through the annular plate 54 is also provided on the bottom wall of the collection tray 52. ​​A lead screw 57 extending to the outside of the flocculation tank 1 is provided in the circular tube 56. The top end of the lead screw 57 is movably connected to the rotating shaft 42 through a transmission mechanism 58. A cylinder 59 is also provided at the top of the flocculation tank 1. A boss 510 for the lead screw 57 to pass through is provided on the inner side wall of the cylinder 59.

[0021] The transmission mechanism 58 includes a driven gear 581 disposed at the top of the lead screw 57, a driving gear 582 corresponding to the driven gear 581 disposed on the rotating shaft 42, and a transmission gear 583 meshing with the driven gear 581 and the driving gear 582 disposed between the driven gear 581 and the driving gear 582.

[0022] like Figure 2 As shown, the bottom wall of the flocculation tank 1 has a conical structure, and a connecting pipe 6 is provided in the bottom wall of the flocculation tank 1 to connect the bottom of the annular groove 51 with the bottom of the flocculation tank 1. A solenoid valve is provided on the connecting pipe 6.

[0023] like Figure 2 , 4 As shown, the height of the outer sidewall of the collection tray 52 is lower than the height of its inner sidewall. The top of the outer sidewall of the collection tray 52 is located below the water outlet pipe 2. The bottom of the collection tray 52 is located inside the top opening of the annular groove 51. The top of the collection tray 52 extends into the bottom opening of the flocculation tank 1.

[0024] like Figure 2 , 4As shown, the top end of the circular tube 56 extends to the outer side of the top of the collecting tray 52, and the distance between the top end of the outer sidewall of the collecting tray 52 and the top end of the circular tube 56 is less than the distance between the boss 510 and the bottom end of the cylinder 59.

[0025] The force application mechanism 47 includes a bracket 471 located at the top of the flocculation tank 1. An electric push rod 472 is provided on the bracket 471. A mounting seat 473 is provided on the output shaft of the electric push rod 472. A receiving groove with an arc-shaped cross section is provided at the bottom of the mounting seat 473. A ball bearing 474 extending to the outside of its bottom and abutting against the top surface of the top plate 46 is provided in the receiving groove.

[0026] Both the annular plate 54 and the bottom wall of the collection tray 52 are provided with through holes for the corresponding round tube 56 and T-shaped rod 55 to pass through. The bottom of the annular groove 51 is provided with a groove for accommodating the bottom end of the spring II 53. The top end of the spring II 53 is fixedly connected to the bottom of the collection tray 52. ​​The bottom of the side wall of the flocculation tank 1 is also provided with a drain pipe II 7 that communicates with the bottom of the annular groove 51.

[0027] In this embodiment, the stirring paddle 411 is located in the opening formed between multiple sets of lead screws 57, and the mounting opening 48 is located above the bottom end of the vertical rod 45.

[0028] like Figure 2 , 5 As shown, the bottom of the cylinder 59 is provided with a U-shaped notch 9 corresponding to the sewage pipe I3, and the protrusion 510 is provided with a screw hole that is screwed to the lead screw 57.

[0029] When using Figure 2 As shown, by introducing wastewater into the flocculation tank 1 and adding an appropriate amount of flocculant, the motor 41 drives the rotating shaft 42 to rotate, and the rotating shaft 42 drives the stirring paddle 411 to rotate, thereby stirring and mixing the wastewater and flocculant in the flocculation tank 1. When the rotating shaft 42 rotates, it will abut against the vertical rod 45 through the side wall of the sliding channel 43, thereby driving the vertical rod 45 and the top plate 46 to rotate. At this time, the top plate 46 rotates at the bottom of the ball bearing 474 and drives the ball bearing 474 to roll in the receiving groove, so that the force application mechanism 47 will not affect the rotation of the rotating shaft 42 and the vertical rod 45. In the above process, the spring 144 pushes the bottom end of the vertical rod 45 with its extension force, while the force application mechanism 47 abuts against the top end of the vertical rod 45 through the top plate 46, thereby effectively preventing the vertical rod 45 from moving up and down in the sliding channel 43.

[0030] When it is necessary to agitate and mix different areas at the top and bottom of the flocculation tank 1, simply change the tilt direction and angle of the stirring paddle 411 during rotation to expand its coverage area in the flocculation tank 1, allowing it to agitate and mix different areas at the top and bottom of the flocculation tank 1, thereby improving mixing efficiency and effect. The specific steps are as follows: When the stirring paddle 411 needs to be tilted downward, the electric push rod 472 drives the mounting base 473 to move the ball bearing 474 upward. At this time, the spring I44 extends and pushes the vertical rod 45 and the gear tooth 412 to move slowly upward in the sliding channel 43. During this process, the upward-moving gear tooth 412 drives the drive gear 49 to rotate around the movable shaft 410 in the mounting opening 48. The rotating drive gear 49 drives the stirring paddle 411 to tilt downward, thereby adjusting the stirring paddle 411 to a downward tilted posture. When the stirring paddle 411 is tilted downward, the lowest stirring paddle... The agitator 411 can be closely attached to the inclined surface of the bottom wall of the flocculation tank 1. When the rotating shaft 42 drives the agitator 411 to rotate, it can stir the sediment at the bottom of the flocculation tank 1, so that it can be fully mixed and reacted with the liquid. When it is necessary to tilt the agitator 411 upward, the electric push rod 472 drives the mounting base 473 to drive the ball bearing 474 to press the top plate 46 downward. The top plate 46 drives the vertical rod 45 and the gear 412 to move downward in the sliding channel 43 and compress the spring I44. The downward moving gear 412 drives the drive gear 49 to rotate in the mounting opening 48 with the movable shaft 410 as the center. The rotating drive gear 49 drives the agitator 411 to tilt and swing upward, thereby adjusting the agitator 411 to an upward tilted posture. Finally, the installation angle of the agitator 411 is adjusted by the above adjustment method, so that it can stir and mix different areas at the top and bottom of the flocculation tank 1.

[0031] When the rotating shaft 42 rotates, it drives the lead screw 57 to rotate through the driving gear 582, the transmission gear 583 and the driven gear 581. At this time, the lead screw 57 rotates in the boss 510 and the cylindrical tube 56, and drives multiple sets of bosses 510 to move in the same direction and at the same speed. When the bosses 510 move, they drive the cylindrical tube 59 to move in the same direction and at the same speed in the flocculation tank 1. As the cylindrical tube 59 moves down in the flocculation tank 1, it scrapes off and cleans the material adhering to its inner wall, so that it can fully contact and mix with the liquid. At this time, the final downward position of the bottom of the cylindrical tube 59 is above the water outlet pipe 2 and does not contact the top of the collection plate 52. This embodiment indirectly drives the cylindrical tube 59 in the cleaning mechanism 5 to move up and down in the flocculation tank 1 through the forward and reverse rotation of the motor 41, so as to scrape off and clean the material adhering to its inner wall so as to fully mix with the liquid.

[0032] like Figure 1As shown, after the liquid in the flocculation tank 1 has mixed and reacted and settled, the outlet pipe 2 can be opened to discharge the settled liquid. The sediment accumulates in the collection tray 52 above the annular plate 54 and on the bottom inclined surface of the flocculation tank 1. At this time, a small amount of liquid remains at the top of the collection tray 52 and at the bottom of the flocculation tank 1 enclosed by it. Then, by adjusting the state of the stirring paddle 411 to tilt downwards, with the lowest stirring paddle 411 in close contact with the bottom inclined surface of the flocculation tank 1, when the motor 41 drives the stirring paddle 411 to rotate through the rotating shaft 42, it can agitate the sediment accumulated at the bottom of the flocculation tank 1, causing the sediment to mix with the residual liquid, thus facilitating its separation from the bottom wall of the flocculation tank 1. At the same time, the rotating shaft 42 drives the lead screw 57 to rotate in the boss 510 through the transmission mechanism 58, thereby driving the boss 510 and the cylinder 59 to move downwards, ultimately as follows. Figure 5 As shown, the bottom end of the cylinder 59, after finally moving down, abuts against the outer sidewall of the collection tray 52 and continues to squeeze it, causing it to compress the collection tray 52 back into the annular groove 51. The moving collection tray 52 will also compress the spring II 53. During the downward movement of the cylinder 59, it will scrape off and clean the adhering material on the inner wall of the flocculation bucket 1, so that it falls into the collection tray 52. ​​Since the top of the moving collection tray 52 is lower than the bottom wall of the flocculation bucket 1, the sediment at the bottom of the flocculation bucket 1, which is stirred by the agitator 411 and mixed with the residual liquid, flows into the collection tray 52. ​​Finally, the drain pipe I3 ​​is opened, so that the sediment in the collection tray 52 is discharged through the U-shaped notch 9 and the drain pipe I3.

[0033] In the above process, such as Figure 1 As shown, when the flocculation tank 1 is agitated and mixed, the solenoid valve on the connecting pipe 6 is opened, allowing the liquid in the flocculation tank 1 to be injected into the annular groove 51 below the collection tray 52. ​​The solenoid valve is then closed. When the collection tray 52 is compressed and retracted into the annular groove 51 by the descending cylinder 59, the descending collection tray 52 drives the T-shaped rod 55 to move downwards and contact the bottom wall of the annular groove 51. At this time, the T-shaped rod 55 provides support for the annular plate 54, causing the collection tray 52 to move up and down on the annular plate 54, while the annular plate 54 is suspended at the top opening of the collection tray 52. ​​Specifically, as shown... Figure 5As shown, at this time, the annular plate 54 can scrape and clean the sediment at the bottom of the collection tray 52, and push the impurities to the top opening of the collection tray 52. ​​Finally, after mixing with the liquid flowing down the inner wall of the flocculation tank 1, it is discharged through the U-shaped notch 9 and the drain pipe I3. When the collection tray 52 moves down in the annular groove 51, it will squeeze the liquid in the annular groove 51 below it, so that the liquid flows into the collection tray 52 below the annular plate 54 through the through hole in the bottom wall of the collection tray 52. ​​Then, some of the liquid is sprayed upward through the small gap between the annular plate 54 and the side wall of the collection tray 52, which will then have a high-pressure flushing effect on the sediment at the inner edge of the collection tray 52 above the annular plate 54, so that it mixes with the liquid. When the cylinder 59 moves up and resets, the spring II 53 extends and pushes the collection tray 52 to move up and reset. Then, the residual liquid in the collection tray 52 below the annular plate 54 can flow into the annular groove 51 below the collection tray 52 through the through hole, and at this time it can be discharged through the drain pipe II 7.

[0034] The present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A wastewater treatment device, comprising a flocculation tank, wherein an inlet pipe, an outlet pipe, and a sewage discharge pipe I are sequentially arranged from top to bottom on the side wall of the flocculation tank, characterized in that: The flocculation tank is equipped with a stirring mechanism and a cleaning mechanism. The stirring mechanism includes a rotating shaft driven by a motor located inside the flocculation tank. The rotating shaft has a sliding channel communicating with its top outer side. A spring I is installed at the bottom of the sliding channel. A vertical rod is installed in the sliding channel above the spring I. A top plate is installed above the rotating shaft and connected to the top of the vertical rod. A force-applying mechanism is movably installed above the top plate. Installation openings communicating with the sliding channel are evenly arranged on both sides of the rotating shaft. A drive gear is fixed in the installation opening through a movable shaft. A stirring rod is radially arranged on the outer wall of the drive gear. Gear teeth that mesh with the corresponding drive gears are evenly arranged on the two side walls of the vertical rod. The cleaning mechanism includes an annular groove located at the bottom edge of the flocculation tank, an annular collection tray is provided in the annular groove, a spring II is provided below the collection tray, an annular plate is also provided at the bottom of the collection tray, a T-shaped rod connected to the annular plate is provided at the bottom of the collection tray, a circular tube passing through the annular plate is also provided on the bottom wall of the collection tray, a screw extending to the outside of the flocculation tank is provided in the circular tube, the top end of the screw is movably connected to a rotating shaft through a transmission mechanism, a cylinder is also provided at the top of the flocculation tank, and a protrusion for the screw to pass through is provided on the inner side wall of the cylinder.

2. The wastewater treatment equipment according to claim 1, characterized in that: The bottom wall of the flocculation tank has a conical structure, and a connecting pipe is provided in the bottom wall of the flocculation tank to connect the bottom of the annular groove with the bottom of the flocculation tank. A solenoid valve is provided on the connecting pipe.

3. The wastewater treatment equipment according to claim 1, characterized in that: The height of the outer sidewall of the collection tray is lower than the height of its inner sidewall. The top of the outer sidewall of the collection tray is located below the water outlet pipe. The bottom of the collection tray is located inside the top opening of the annular groove. The top of the collection tray extends into the bottom opening of the flocculation tank.

4. The wastewater treatment equipment according to claim 1, characterized in that: The top of the circular tube extends to the outer side of the top of the collecting pan, and the distance between the top of the outer sidewall of the collecting pan and the top of the circular tube is less than the distance between the boss and the bottom of the cylinder.

5. The wastewater treatment equipment according to claim 1, characterized in that: The force-applying mechanism includes a bracket located at the top of the flocculation tank, an electric push rod is mounted on the bracket, a mounting base is mounted on the output shaft of the electric push rod, a receiving groove with an arc-shaped cross section is provided at the bottom of the mounting base, and a ball bearing extending to the outer side of its bottom and abutting against the top surface of the top plate is provided in the receiving groove.

6. The wastewater treatment equipment according to claim 1, characterized in that: Both the annular plate and the bottom wall of the collection tray are provided with through holes for the corresponding round pipes and T-shaped rods to pass through. The bottom of the annular groove is provided with a groove for accommodating the bottom end of spring II. The top end of spring II is fixedly connected to the bottom of the collection tray. The bottom of the side wall of the flocculation bucket is also provided with a drain pipe II that communicates with the bottom of the annular groove.

7. The wastewater treatment equipment according to claim 1, characterized in that: The transmission mechanism includes a driven gear disposed at the top of a lead screw, a driving gear corresponding to the driven gear disposed on the rotating shaft, and a transmission gear meshing between the driven gear and the driving gear.

8. The wastewater treatment equipment according to claim 1, characterized in that: A limiting rod is provided on the bottom end face of the vertical rod and is suspended in the sliding channel.

9. A wastewater treatment device according to claim 1, characterized in that: The stirring paddle is located within the opening formed by multiple sets of lead screws, and the mounting opening is located above the bottom end of the vertical rod.

10. A wastewater treatment device according to claim 1, characterized in that: The bottom of the cylinder is provided with a U-shaped notch corresponding to the sewage pipe I, and the protrusion is provided with a screw hole for screwing with the lead screw.

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