CN214031856U

CN214031856U - Magnetic flocculation precipitation sewage treatment device

Info

Publication number: CN214031856U
Application number: CN202022905364.8U
Authority: CN
Inventors: 张增增; 丁祥
Original assignee: Suzhou Guangxu Energy Saving Environmental Protection Tech Co ltd
Current assignee: Suzhou Guangxu Energy Saving Environmental Protection Tech Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-08-24
Anticipated expiration: 2030-12-07

Abstract

The utility model discloses a magnetism flocculation and precipitation sewage treatment plant relates to sewage treatment device technical field, this magnetism flocculation and precipitation sewage treatment plant, including the effluent water sump, two elongated slots, two have been seted up respectively to the top and the bottom of the inner wall of effluent water sump the inner wall of elongated slot respectively with the surface swing joint of two threaded rods, the inside of effluent water sump is provided with first mud scraper, the inner wall swing joint of first mud scraper surface and effluent water sump, the surface of first mud scraper and the inner wall swing joint of elongated slot, two the equal screw thread of right-hand member of threaded rod runs through first mud scraper and respectively with the inner wall swing joint of two elongated slots. The utility model discloses a set up elongated slot, first mud scraper, stock, second bevel gear and first from the driving wheel, solved the manual work and put into the pond with the pump body and extract mud, the cleaning process is complicated, and work efficiency is lower to the bottom of the pool probably has the heavy metal to deposit, leads to the human problem that receives the infringement.

Description

Magnetic flocculation precipitation sewage treatment device

Technical Field

The utility model relates to the technical field of sewage treatment equipment, in particular to a magnetic flocculation precipitation sewage treatment device.

Background

The magnetic flocculation precipitation technology is characterized in that magnetic powder is synchronously added in a coagulation precipitation process, so that the magnetic powder and pollutants are flocculated and combined into a whole to enhance the coagulation and flocculation effects, and the generated floc is higher in density and firmer, so that the purpose of high-speed precipitation is achieved, and the floc is precipitated at the bottom of a tank and needs to be periodically cleaned.

The mode of present common clearance floc is that the sludge impoundment is taken out with the floc of bottom of the pool to the utilization sludge pump, needs the manual work to put into the pond with the pump body and extracts mud, and the cleaning process is complicated, and work efficiency is lower to the bottom of the pool probably has the heavy metal to deposit, leads to the human problem that receives the infringement.

SUMMERY OF THE UTILITY MODEL

The utility model provides a magnetism flocculation and precipitation sewage treatment plant possesses the floc of being convenient for clear up sludge impoundment bottom, improves clean efficiency, reduces the human advantage that receives the heavy metal infringement to solve the manual work and put into the pond with the pump body and extract mud, the clearance process is complicated, and work efficiency is lower, and the bottom of the pool probably has the heavy metal sediment, leads to the human body to receive the problem of infringement.

For the floc of realizing being convenient for clear up sludge impoundment bottom, improve clean efficiency, reduce the human purpose that receives the heavy metal infringement, the utility model provides a following technical scheme: a sewage treatment device adopting magnetic flocculation and sedimentation comprises a sewage tank, wherein the top and the bottom of the inner wall of the sewage tank are respectively provided with two elongated slots, the inner walls of the two elongated slots are respectively movably connected with the surfaces of two threaded rods, a first mud scraper is arranged inside the sewage tank, the surface of the first mud scraper is movably connected with the inner wall of the sewage tank, the surface of the first mud scraper is movably connected with the inner walls of the elongated slots, the right ends of the two threaded rods penetrate through the first mud scraper in a threaded manner and are respectively movably connected with the inner walls of the two elongated slots, the opposite sides of the inner walls of the two elongated slots are provided with a long hole, the long hole is positioned on the right side of the first mud scraper, the surfaces of the two threaded rods are fixedly sleeved with belt pulleys, the surfaces of the two belt pulleys are movably connected with the inner walls of toothed belts, and the surfaces of the threaded rods are fixedly sleeved with first gears, the first gear is positioned on the left side of the belt pulley, a groove is formed in the bottom of the inner wall of the long groove, the inner wall of the groove is movably connected with the surface of the long rod, a first bevel gear is movably arranged in the groove, the inner wall of the first bevel gear is fixedly connected with the surface of the long rod, a second gear is fixedly sleeved on the surface of the long rod and is meshed with the first gear, a second bevel gear is arranged in the groove and is meshed with the first bevel gear, the second bevel gear is positioned on the front side of the first bevel gear, a short rod is fixedly connected with the inner wall of the second bevel gear, a first driven wheel is fixedly sleeved on the surface of the short rod, the surface of the short rod is movably connected with the inner wall of the groove, the surface of the first driven wheel is movably connected with the inner wall of the groove, and a rotating rod is movably arranged on the inner wall of the groove, the surface of the rotating rod is fixedly connected with the inner wall of the special-shaped wheel, the special-shaped wheel is positioned on the left side of the first driven wheel, a connecting rod is movably arranged in the groove, the surface of the connecting rod is fixedly connected with the inner wall of the second driven wheel, the second driven wheel is positioned on the left side of the special-shaped wheel, the second driven wheel is meshed with the special-shaped wheel, a third driven wheel is fixedly sleeved on the surface of the connecting rod, the third driven wheel is positioned on the back side of the second driven wheel, a rack is movably arranged in the groove and meshed with the third driven wheel, the surface of the rack is movably connected with the inner wall of the groove, the top of the rack movably penetrates through the sewage tank and is fixedly connected with the lower surface of the second mud scraper, the surface of the second mud scraper is movably connected with the inner wall of the sewage tank, and a vertical groove is formed in the position, corresponding to the first mud scraper, on the left side of the second mud scraper, the mud discharging hole has been seted up at the back of effluent water sump inner wall, the gate slot has been seted up on the right side of mud discharging hole inner wall, the inner wall in gate slot and the surperficial swing joint of door plant, the right side of door plant is fixed to be inlayed and is had the second bearing, the right side screw thread of effluent water sump is inlayed and is had the screw rod, the one end screw thread of screw rod run through the effluent water sump and with the inner wall fixed connection of second bearing, the positive fixedly connected with motor of effluent water sump, the output shaft activity of motor run through the effluent water sump and with the one end fixed connection of quarter butt.

As an optimal technical scheme of the utility model, the guiding hole has been seted up to the bottom of effluent water sump inner wall, the inner wall of guiding hole and the surface swing joint of guide bar, the top of guide bar is connected with the lower fixed surface of second mud scraper.

As an optimal technical scheme of the utility model, two the left side and the right side of elongated slot inner wall are all fixed to be inlayed and are had first bearing, the inner wall of first bearing is connected with the fixed surface of threaded rod.

As a preferred technical scheme of the utility model, first follow driving wheel is the same with the size and the number of teeth of second follow driving wheel completely, the diameter ratio second that the third was followed the driving wheel is big from the diameter of driving wheel.

As an optimal technical scheme of the utility model, the shape of first mud scraper is T shape, the shape of rack and the inner wall looks adaptation of recess.

As the utility model discloses a preferred technical scheme, the special-shaped wheel has the tooth for half limit and does not have the special gear of tooth for half limit, the number of teeth of special-shaped wheel is greater than the first number of teeth from driving wheel and second from the driving wheel.

Compared with the prior art, the utility model provides a magnetism flocculation and precipitation sewage treatment plant possesses following beneficial effect:

1. the sewage treatment device adopting magnetic flocculation precipitation comprises a special-shaped wheel, a connecting rod, a first driven wheel, a rack and a second mud scraper, a starting motor, wherein an output shaft of the motor drives a rotating rod and the special-shaped wheel to rotate, one toothed side of the special-shaped wheel drives the first driven wheel, a short rod, a second bevel gear, a first bevel gear, a long rod and a second gear to rotate, the second gear rotates through a threaded rod at the bottom of the first gear, the threaded rod at the bottom drives a corresponding belt pulley to rotate, the belt pulley at the top can also rotate due to the transmission effect of a toothed belt to drive the threaded rod at the top to rotate, and the threaded rod is in threaded connection with the first mud scraper, so that the first mud scraper moves leftwards until the first mud scraper moves to the edge of a mud discharge hole, the motor is started reversely, the output shaft of the motor drives the rotating rod and the special-shaped wheel to rotate in the opposite direction, and one toothed side of the special-shaped wheel drives the first driven wheel, The short rod second bevel gear, the first bevel gear, the long rod and the second gear rotate, the second gear also rotates in the opposite direction through the threaded rod at the bottom of the first gear, the threaded rod at the bottom drives the corresponding belt pulley to rotate, the belt pulley at the top also rotates along with the threaded rod due to the transmission effect of the toothed belt to drive the threaded rod at the top to rotate, the threaded rod is in threaded connection with the first mud scraper, so that the first mud scraper moves rightwards until the first mud scraper returns to the initial position, the motor continues to rotate reversely, the special-shaped wheel drives the second driven wheel to rotate, the first driven wheel is fixed at the moment, the second driven wheel drives the connecting rod and the third driven wheel to rotate, the third driven wheel drives the rack to move upwards, the rack drives the second mud scraper to also move in the same direction until the second mud scraper moves to the edge of the mud discharge hole, the motor rotates reversely, so that the special-shaped wheel drives the second driven wheel to rotate in the opposite direction, the second drives the connecting rod from the driving wheel and the third also rotates to opposite direction from the driving wheel, and the third driven wheel drives the rack and moves down, and the rack drives the second mud scraper and also moves to the same direction, moves to the initial position until the second mud scraper, because the drive effect of the half-edge gear of dysmorphism wheel for first from driving wheel and second can rotate in turn from the driving wheel, has played the crisscross mud scraping of first mud scraper and second mud scraper, the effect that can not block.

2. This magnetic flocculation deposits sewage treatment plant through setting up guide bar and guiding hole, because the guide bar can only be in the inside lateral shifting of guiding hole, has restricted the radial movement of guiding hole for the second mud scraper also can only move towards the equidirectional, has played the effect that produces when restricting the motion of second mud scraper and has rocked.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the first bevel gear of the present invention;

FIG. 3 is a front sectional view of the first driven wheel of the present invention;

fig. 4 is a front sectional view of the door slot of the present invention.

In the figure: 1. a sewage tank; 2. a long groove; 3. a threaded rod; 4. a first mud scraper; 5. a long hole; 6. a belt pulley; 7. a toothed belt; 8. a first gear; 9. a groove; 10. a long rod; 11. a first bevel gear; 12. a second gear; 13. a second bevel gear; 14. a short bar; 15. a first driven wheel; 16. a rotating rod; 17. a special-shaped wheel; 18. a connecting rod; 19. a second driven wheel; 20. a third driven wheel; 21. a rack; 22. a second mud scraper; 23. a vertical slot; 24. a sludge discharge hole; 25. a door slot; 26. a door panel; 27. a second bearing; 28. a screw; 29. a motor; 30. a guide hole; 31. a guide bar; 32. a first bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the utility model discloses a magnetic flocculation sedimentation sewage treatment device, which comprises a sewage tank 1, wherein the top and the bottom of the inner wall of the sewage tank 1 are respectively provided with two elongated slots 2, the inner walls of the two elongated slots 2 are respectively movably connected with the surfaces of two threaded rods 3, a first mud scraper 4 is arranged inside the sewage tank 1, the surface of the first mud scraper 4 is movably connected with the inner wall of the elongated slot 2, the right ends of the two threaded rods 3 are respectively threaded through the first mud scraper 4 and are respectively movably connected with the inner walls of the two elongated slots 2, the opposite sides of the inner walls of the two elongated slots 2 are provided with long holes 5, the long holes 5 are positioned at the right side of the first mud scraper 4, the surfaces of the two threaded rods 3 are respectively fixedly sleeved with belt pulleys 6, the surfaces of the two belt pulleys 6 are respectively movably connected with the inner walls of toothed belts 7, the surface of the threaded rod 3 is fixedly sleeved with a first gear 8, the first gear 8 is positioned on the left side of the belt pulley 6, the bottom of the inner wall of the elongated slot 2 is provided with a groove 9, the inner wall of the groove 9 is movably connected with the surface of the elongated rod 10, the inside of the groove 9 is movably provided with a first bevel gear 11, the inner wall of the first bevel gear 11 is fixedly connected with the surface of the elongated rod 10, the surface of the elongated rod 10 is fixedly sleeved with a second gear 12, the second gear 12 is meshed with the first gear 8, the inside of the groove 9 is provided with a second bevel gear 13, the second bevel gear 13 is meshed with the first bevel gear 11, the second bevel gear 13 is positioned on the front surface of the first bevel gear 11, the inner wall of the second bevel gear 13 is fixedly connected with a short rod 14, the surface of the short rod 14 is fixedly sleeved with a first driven wheel 15, and the surface of the short rod 14 is movably connected with the inner wall of the groove 9, the surface of the first driven wheel 15 is movably connected with the inner wall of the groove 9, the inner wall of the groove 9 is movably provided with a rotating rod 16, the surface of the rotating rod 16 is fixedly connected with the inner wall of a special-shaped wheel 17, the special-shaped wheel 17 is positioned on the left side of the first driven wheel 15, the inside of the groove 9 is movably provided with a connecting rod 18, the surface of the connecting rod 18 is fixedly connected with the inner wall of a second driven wheel 19, the second driven wheel 19 is positioned on the left side of the special-shaped wheel 17, the second driven wheel 19 is meshed with the special-shaped wheel 17, the surface of the connecting rod 18 is fixedly sleeved with a third driven wheel 20, the third driven wheel 20 is positioned on the back of the second driven wheel 19, the inside of the groove 9 is movably provided with a rack 21, the rack 21 is meshed with the third driven wheel 20, the surface of the rack 21 is movably connected with the inner wall of the groove 9, the top of the rack 21 movably penetrates through the sewage tank 1 and is fixedly connected with the lower surface of a second mud scraping plate 22, the surface of

second mud scraper

22 and 1 inner wall swing joint in effluent water sump, perpendicular groove 23 has been seted up to the position that the left side of second mud scraper 22 corresponds first mud scraper 4, mud discharging hole 24 has been seted up at the back of 1 inner wall in effluent water sump, door slot 25 has been seted up on the right side of mud discharging hole 24 inner wall, the inner wall of door slot 25 and the surface swing joint of door plant 26, the fixed inlaying in right side of door plant 26 has second bearing 27, the right side screw thread of effluent water sump 1 inlays and has screw rod 28, the one end screw thread of screw rod 28 run through effluent water sump 1 and with the inner wall fixed connection of second bearing 27, the positive fixedly connected with motor 29 of effluent water sump 1, the output shaft activity of motor 29 run through effluent water sump 1 and with the one end fixed connection of quarter butt 14.

Specifically, the bottom of the inner wall of the wastewater tank 1 is provided with a guide hole 30, the inner wall of the guide hole 30 is movably connected with the surface of a guide rod 31, and the top of the guide rod 31 is fixedly connected with the lower surface of the second mud scraper 22.

In this embodiment, the guide hole 30 prevents the guide rod 31 from moving radially, and the guide rod 31 drives the second scraper 22 to move without shifting.

Specifically, the left side and the right side of the inner wall of each of the two elongated slots 2 are fixedly embedded with a first bearing 32, and the inner wall of each first bearing 32 is fixedly connected with the surface of the threaded rod 3.

In this embodiment, it is more smooth to guarantee that threaded rod 3 rotates in the inside of elongated slot 2 for it is more stable to move about to drive first mud scraper 4 when threaded rod 3 rotates.

Specifically, the first driven wheel 15 and the second driven wheel 19 have the same size and number of teeth, and the third driven wheel 20 has a larger diameter than the second driven wheel 19.

In this embodiment, it is ensured that the first and

second scrapers

4 and 22 move far and the movement speed is consistent.

Specifically, the first scraper 4 is T-shaped, and the rack 21 is adapted to the inner wall of the groove 9.

In this embodiment, the bottom of the first scraper 4 is ensured to be more attached to the bottom of the inner wall of the wastewater tank 1, and the rack 21 is prevented from being meshed with the third driven wheel 20 more smoothly.

Specifically, the special-shaped wheel 17 is a special gear with teeth on one half and no teeth on the other half, and the number of teeth of the special-shaped wheel 17 is greater than the number of teeth of the first driven wheel 15 and the second driven wheel 19.

In this embodiment, it is ensured that the first and

second scrapers

4 and 22 can move in a staggered manner, and cannot collide together to be clamped, and that the moving speed of the second scraper 22 is slow.

The utility model discloses a theory of operation and use flow: when the device is used, flocs at the bottom of the sewage pool 1 need to be cleared, the screw 28 is rotated to drive the second bearing 27 and the door plate 26 to move rightwards until the door slot 25 is completely exposed from the bottom of the door plate 26, the motor 29 is started, the output shaft of the motor 29 drives the rotating rod 16 and the special-shaped wheel 17 to rotate, the toothed side of the special-shaped wheel 17 drives the first driven wheel 15, the short rod 14, the second bevel gear 13, the first bevel gear 11, the long rod 10 and the second gear 12 to rotate, the second gear 12 rotates through the threaded rod 3 at the bottom of the first gear 8, the threaded rod 3 at the bottom drives the corresponding belt pulley 6 to rotate, the belt pulley 6 at the top also rotates due to the transmission effect of the toothed belt 7, the threaded rod 3 at the top rotates, and the first mud scraper 4 moves leftwards due to the threaded connection between the threaded rod 3 and the first mud scraper 4 until the first mud scraper 4 moves to the edge of the mud discharge hole 24, the sludge at the bottom of the sewage pool 1 is pushed to the left side of the inner wall of the sewage pool 1, the motor 29 is started reversely, the output shaft of the motor 29 drives the rotating rod 16 and the special-shaped wheel 17 to rotate in opposite directions, the toothed side of the special-shaped wheel 17 drives the first driven wheel 15, the short rod 14, the second bevel gear 13, the first bevel gear 11, the long rod 10 and the second gear 12 to rotate, the second gear 12 also rotates in opposite directions through the threaded rod 3 at the bottom of the first gear 8, the threaded rod 3 at the bottom drives the corresponding belt pulley 6 to rotate, the belt pulley 6 at the top also rotates along with the threaded rod 3 at the top due to the transmission action of the toothed belt 7, the first sludge scraping plate 4 moves rightwards until the first sludge scraping plate 4 returns to the initial position, the motor 29 continues to rotate reversely, so that the special-shaped wheel 17 drives the second driven wheel 19 to rotate, at the moment, the first driven wheel 15 is not moved, the second driven wheel 19 drives the connecting rod 18 and the third driven wheel 20 to rotate, the third driven wheel 20 drives the rack 21 to move upwards, the rack 21 drives the second mud scraper 22 to move in the same direction until the second mud scraper 22 moves to the edge of the mud discharge hole 24, the mud at the bottom of the sewage pool 1 is pushed into the mud discharge hole 24, the motor 29 rotates reversely, so that the special-shaped wheel 17 drives the second driven wheel 19 to rotate in the opposite direction, the second driven wheel 19 drives the connecting rod 18 and the third driven wheel 20 to rotate in the opposite direction, the third driven wheel 20 drives the rack 21 to move downwards, the rack 21 drives the second mud scraper 22 to move in the same direction until the second mud scraper 22 moves to the initial position, if the door is not cleaned, the above steps can be repeated, and the screw 28 is rotated to drive the door plate 26 to move leftwards until the door plate 26 completely covers the door slot 25.

In conclusion, the magnetic flocculation sedimentation sewage treatment device solves the problems that the pump body is manually placed into the pool to extract sludge, the cleaning process is complex, the working efficiency is low, and heavy metal is possibly deposited at the bottom of the pool to cause the human body to be damaged by arranging the long groove 2, the first mud scraper 4, the long rod 10, the second bevel gear 13 and the first driven wheel 15.

It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a magnetic flocculation sediment sewage treatment plant, includes effluent water sump (1), its characterized in that: the top and the bottom of the inner wall of the sewage tank (1) are respectively provided with two elongated slots (2), the inner walls of the two elongated slots (2) are respectively movably connected with the surfaces of two threaded rods (3), a first mud scraper (4) is arranged inside the sewage tank (1), the surface of the first mud scraper (4) is movably connected with the inner wall of the elongated slots (2), the right ends of the two threaded rods (3) are both threaded through the first mud scraper (4) and respectively movably connected with the inner walls of the two elongated slots (2), the opposite sides of the inner walls of the two elongated slots (2) are provided with long holes (5), the long holes (5) are positioned at the right side of the first mud scraper (4), the surfaces of the two threaded rods (3) are both fixedly sleeved with belt pulleys (6), and the surfaces of the two belt pulleys (6) are both movably connected with the inner walls of toothed belts (7), the surface of the threaded rod (3) is fixedly sleeved with a first gear (8), the first gear (8) is positioned on the left side of the belt pulley (6), the bottom of the inner wall of the long groove (2) is provided with a groove (9), the inner wall of the groove (9) is movably connected with the surface of the long rod (10), a first bevel gear (11) is movably arranged in the groove (9), the inner wall of the first bevel gear (11) is fixedly connected with the surface of the long rod (10), the surface of the long rod (10) is fixedly sleeved with a second gear (12), the second gear (12) is meshed with the first gear (8), a second bevel gear (13) is arranged in the groove (9), the second bevel gear (13) is meshed with the first bevel gear (11), the second bevel gear (13) is positioned on the front face of the first bevel gear (11), and a short rod (14) is fixedly connected with the inner wall of the second bevel gear (13), the surface of the short rod (14) is fixedly sleeved with a first driven wheel (15), the surface of the short rod (14) is movably connected with the inner wall of the groove (9), the surface of the first driven wheel (15) is movably connected with the inner wall of the groove (9), the inner wall of the groove (9) is movably provided with a rotating rod (16), the surface of the rotating rod (16) is fixedly connected with the inner wall of a special-shaped wheel (17), the special-shaped wheel (17) is positioned on the left side of the first driven wheel (15), a connecting rod (18) is movably arranged in the groove (9), the surface of the connecting rod (18) is fixedly connected with the inner wall of a second driven wheel (19), the second driven wheel (19) is positioned on the left side of the special-shaped wheel (17), the second driven wheel (19) is meshed with the special-shaped wheel (17), the surface of the connecting rod (18) is fixedly sleeved with a third driven wheel (20), the third driven wheel (20) is positioned on the back of the second driven wheel (19), a rack (21) is movably arranged in the groove (9), the rack (21) is meshed with the third driven wheel (20), the surface of the rack (21) is movably connected with the inner wall of the groove (9), the top of the rack (21) movably penetrates through the sewage tank (1) and is fixedly connected with the lower surface of the second mud scraper (22), the surface of the second mud scraper (22) is movably connected with the inner wall of the sewage tank (1), a vertical groove (23) is formed in the position, corresponding to the first mud scraper (4), of the left side of the second mud scraper (22), a mud discharge hole (24) is formed in the back of the inner wall of the sewage tank (1), a door groove (25) is formed in the right side of the inner wall of the mud discharge hole (24), and the inner wall of the door groove (25) is movably connected with the surface of the door plate (26), the fixed second bearing (27) of inlaying in right side of door plant (26), the right side screw thread of effluent water sump (1) is inlayed and is had screw rod (28), screw rod (28) screw thread run through effluent water sump (1) and with the inner wall fixed connection of second bearing (27), the positive fixedly connected with motor (29) of effluent water sump (1), the output shaft activity of motor (29) run through effluent water sump (1) and with the one end fixed connection of quarter butt (14).

2. The magnetic flocculation precipitation sewage treatment plant of claim 1, characterized in that: the bottom of the inner wall of the sewage pool (1) is provided with a guide hole (30), the inner wall of the guide hole (30) is movably connected with the surface of a guide rod (31), and the top of the guide rod (31) is fixedly connected with the lower surface of a second mud scraper (22).

3. The magnetic flocculation precipitation sewage treatment plant of claim 1, characterized in that: and the left side and the right side of the inner wall of the long groove (2) are fixedly embedded with a first bearing (32), and the inner wall of the first bearing (32) is fixedly connected with the surface of the threaded rod (3).

4. The magnetic flocculation precipitation sewage treatment plant of claim 1, characterized in that: the first driven wheel (15) and the second driven wheel (19) are identical in size and tooth number, and the diameter of the third driven wheel (20) is larger than that of the second driven wheel (19).

5. The magnetic flocculation precipitation sewage treatment plant of claim 1, characterized in that: the first mud scraper (4) is T-shaped, and the rack (21) is matched with the inner wall of the groove (9) in shape.

6. The magnetic flocculation precipitation sewage treatment plant of claim 1, characterized in that: the special-shaped wheel (17) is a special gear with half teeth and half teeth without teeth, and the number of teeth of the special-shaped wheel (17) is greater than the number of teeth of the first driven wheel (15) and the second driven wheel (19).