Sewage treatment system and method containing magnetic coagulative precipitation tank

Abstract

The invention discloses a sewage treatment system and method containing a magnetic coagulative precipitation tank, and relates to the technical field of water pollution control and treatment. The upper mounting frame is arranged on the coagulating basin, a stirring motor is fixedly connected to the upper mounting frame, an output shaft of the stirring motor is fixedly connected with a stirring shaft rod through a coupler, and stirring blades are arranged on the outer side wall of the stirring shaft rod; and an equipartition feeding mechanism. According to the sewage treatment system and method containing the magnetic coagulative precipitation tank, solid and liquid in the coagulative precipitation tank are guided into the spray pipes through the delivery pump, the solid and liquid are sprayed to the sieve plates of the flow guide inclined plate through the spray holes, and large solid particles in a solid-liquid mixture are intercepted through the sieve plates; meanwhile, the sediment at the bottom of the sedimentation tank body is less, the overall pressure of the sedimentation tank body caused by the water body above is increased, the outflow of the settled water body is accelerated, the solid-liquid separation rate is increased, and the water body loss is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of water pollution control and treatment, and particularly to a sewage treatment system and method including a magnetic coagulation sedimentation tank. Background Art

[0002] In water pollution control and treatment, in order to improve the sewage treatment efficiency, magnetic powder, coagulant, and flocculant are usually added to sewage synchronously, so as to accelerate the sedimentation of sewage and improve the sewage treatment efficiency.

[0003] In the existing sewage treatment equipment, the sewage mixed with magnetic powder, coagulant, and flocculant is introduced into a sedimentation tank for sedimentation to achieve solid-liquid separation. During the sedimentation process, the more magnetic flocs contained in the sewage, the slower the sedimentation speed, the more magnetic flocs accumulate at the bottom of the sedimentation tank, and the longer the time for the water body mixed in the magnetic flocs to be squeezed out by gravity and the less the extrusion amount. As a result, the existing sewage treatment equipment has a too long treatment time and incomplete solid-liquid separation. Summary of the Invention

[0004] The present invention discloses a sewage treatment system including a magnetic coagulation sedimentation tank, aiming to solve the technical problem that in the existing sewage treatment equipment, the sewage mixed with magnetic powder, coagulant, and flocculant is introduced into a sedimentation tank for sedimentation to achieve solid-liquid separation. During the sedimentation process, the more magnetic flocs contained in the sewage, the slower the sedimentation speed, the more magnetic flocs accumulate at the bottom of the sedimentation tank, and the longer the time for the water body mixed in the magnetic flocs to be squeezed out by gravity and the less the extrusion amount. As a result, the existing sewage treatment equipment has a too long treatment time and incomplete solid-liquid separation.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A sewage treatment system including a magnetic coagulation sedimentation tank, comprising: A coagulation tank; An upper mounting frame, arranged on the coagulation tank, on which a stirring motor is fixedly connected. The output shaft of the stirring motor is fixedly connected to a stirring shaft rod through a coupling, and stirring blades are arranged on the outer side wall of the stirring shaft rod; An equalizing feeding mechanism, arranged at the upper mounting frame; A sedimentation tank body; Two collecting arc frames, arranged on both sides of the sedimentation tank body; Two diversion inclined plates, arranged on the side walls of the sedimentation tank body above the collecting arc frames; A diversion screening mechanism, arranged at the diversion inclined plates; A magnetic powder separator; Two high-shear machines, arranged on the magnetic powder separator.

[0006] In a preferred solution, the diversion screening mechanism includes: The installation frame is equidistantly arranged on the inclined surface of the diversion inclined plate, and the same deflection shaft is connected to the inner walls on both sides thereof through bearings; The sieve plate is arranged outside the deflection shaft. A first sealing belt is fixedly connected to the lower part of the sieve plate. The first sealing belt is arranged on one side of the installation frame close to the bottom end. A second sealing belt is fixedly connected to the upper part of the sieve plate, and one side of the second sealing belt is fixedly connected to the inner wall of the top of the installation frame; The installation frame is arranged on the top of the installation frame. Hydraulic cylinders I are fixedly connected equidistantly to the side of the installation frame facing the installation frame; The jet arc plate is arranged at the output ends of multiple hydraulic cylinders I and is located inside the installation frame.

[0007] In a preferred solution, the diversion and screening mechanism further includes: Two connecting frames, one is arranged on the outer side wall of the installation frame, and one is arranged on the inner side wall of the installation frame. One side of the connecting frame located inside the installation frame is connected to a hydraulic cylinder II through a hinge, and the output end of the hydraulic cylinder II is connected to one side of the sieve plate through a hinge; The storage frames are all arranged on the side of the connecting frame facing the sieve plate. Oscillating spring rods are fixedly connected equidistantly inside the storage frames. The ends of multiple oscillating spring rods on the same storage frame are fixedly connected to the same integrating rod. Knocking balls are fixedly connected equidistantly to the outer side wall of the integrating rod facing the sieve plate; The frame is arranged on the top of the installation frame. An air compressor is fixedly connected inside the frame. The air output end of the air compressor is connected to the inside of the jet arc plate through a pipeline. Spray holes are opened on the arc surface of the jet arc plate facing the sieve plate.

[0008] In a preferred solution, partition plates are fixedly connected to the inclined surfaces between every two adjacent installation frames of the diversion inclined plate, and installation grooves are opened on the two partition plates in the middle. A spray pipe is fixedly connected inside the installation groove, and spray holes are opened on the outer side wall of the spray pipe facing the diversion inclined plate.

[0009] In a preferred solution, a delivery pump is fixedly connected to the top of the coagulation tank close to the spray pipe. An extraction pipe is fixedly connected to the extraction end of the delivery pump, and the pipe orifice of the extraction pipe is located in the coagulation tank. The delivery end of the delivery pump is fixedly connected to a delivery pipe, and one end of the delivery pipe is inserted into the inside of the spray pipe.

[0010] In a preferred solution, installation holes are opened at the lower part of each installation frame of the diversion inclined plate, and a collection box is fixedly connected inside each installation hole. A blanking plate is connected to the top of the collection box through a hinge. Blanking cylinders are connected to the inner wall on one side below the blanking plate of the collection box through hinges at equal distances. The output ends of the blanking cylinders are connected to the bottom of the blanking plate through hinges. Drainage holes are opened at the bottom of the collection box.

[0011] In a preferred embodiment, one side of the sedimentation tank body is fixedly connected with a pump stand, and the top of the pump stand is fixedly connected with a water pump. The water inlet end of the water pump is fixedly connected with a suction pipe, and the pipe orifice of the suction pipe is located inside the sedimentation tank body. One side inner wall of the sedimentation tank body close to the suction pipe is fixedly connected with a pipe sleeve, and the suction pipe passes through the pipe sleeve.

[0012] In a preferred embodiment, the equalizing feeding mechanism includes: An equalizing sliding frame, on which mounting rods are fixedly connected at equal intervals, and one end of the mounting rod is fixedly connected to the outer side wall of the stirring shaft rod; A rotating ring plate, which is slidably connected inside the equalizing sliding frame; A feed pipe, which is arranged inside a fixing hole formed on the rotating ring plate; A material guiding pipe, which is arranged in a communication hole formed below the equalizing sliding frame, and the outer side wall of the material guiding pipe facing downward is provided with material discharging holes.

[0013] In a preferred embodiment, the equalizing feeding mechanism further includes: A mounting sleeve, which is arranged on the outer side wall of the equalizing sliding frame, and an air pump is fixedly connected inside it; A hollow block, which is arranged on the inner side wall of the material guiding pipe close to the equalizing sliding frame, and a gas punching hole is formed on its outer side wall facing the material discharging hole. A dividing hole is formed on the hollow block, and a dividing pipe is fixedly connected inside the dividing hole; A communicating ring pipe, which is arranged on a plurality of dividing pipes, and the gas delivery end of the air pump is fixedly connected with a gas guiding pipe, and one end of the gas guiding pipe is inserted into the inside of the communicating ring pipe.

[0014] A sewage treatment method for a magnetic coagulation sedimentation tank, using a sewage treatment system for a magnetic coagulation sedimentation tank as described above, includes the following steps: Step 1: Add PAC, magnetic powder, and PAM into the equalizing sliding frame through each feed pipe respectively. When starting the stirring motor and the stirring motor drives the stirring blades to stir the liquid in the coagulation tank, the stirring shaft rod synchronously drives the equalizing sliding frame to rotate, so that the PAC, magnetic powder, and PAM added into the equalizing sliding frame are quickly filled into different material guiding pipes. Start the air pump, and the air pump introduces gas into each hollow block through the communicating ring pipe and sprays it out through the gas punching holes. The impact of the gas drives the PAC, magnetic powder, and PAM to move towards the material discharging holes, ensuring that during the process of flowing from top to bottom, the PAC, magnetic powder, and PAM are continuously discharged from each material discharging hole and discharged into the liquid in the coagulation tank through each material discharging hole, quickly completing the uniform mixing of PAC, magnetic powder, PAM and the liquid; Step 2: After mixing is completed, the solid-liquid mixture inside the coagulation tank is introduced into the spray pipe through a transfer pump, and it is sprayed through the spray holes to each sieve plate of the diversion inclined plate. The sieve plate intercepts the larger solid particles in the solid-liquid mixture. At the same time, the hydraulic cylinder II is adjusted to drive the sieve plate to deflect. During the deflection of the sieve plate, it squeezes the knocking balls on the inner and outer sides of the mounting frame, causing the shock spring rod to be compressed. When the hydraulic cylinder II drives the sieve plate to reset, the shock spring rod continuously drives the knocking balls to knock on the sieve plate, accelerating the falling of the solid particles attached thereto, preventing large particle solid impurities from accumulating on the sieve plate and causing sieve hole blockage, and accelerating the passage of the liquid. Step 3: The sewage enters the inside of the sedimentation tank body to start the sedimentation operation. After a period of time, the sedimentation is completed. The water pump is started to pump out the upper layer of water body, and then the sediment at the lower layer of the sedimentation tank body is pumped into a high-shear machine through a lift pump. After shearing, it is introduced into a magnetic powder separator. The magnetic powder separator stirs the sludge at a high speed to realize the separation of magnetic powder and sludge. The separated magnetic powder is discharged from the magnetic powder discharge channel, and the sludge is discharged from the sludge outlet at the bottom of the magnetic powder separator to end the operation.

[0015] As can be seen from the above, a sewage treatment system of a magnetic coagulation sedimentation tank provided by the present invention has the technical effects of introducing the solid-liquid mixture inside the coagulation tank into the spray pipe through a transfer pump, spraying it through the spray holes to each sieve plate of the diversion inclined plate, intercepting the larger solid particles in the solid-liquid mixture by the sieve plate, thereby reducing the sediment thickness at the bottom after sewage sedimentation, accelerating the sedimentation progress. At the same time, there is less sediment at the bottom of the sedimentation tank body, and the overall pressure caused by the water body above it increases, accelerating the outflow of the water body in the sedimentation, improving the solid-liquid separation rate and reducing the water body loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a sewage treatment system of a magnetic coagulation sedimentation tank proposed by the present invention.

[0017] Figure 2 It is a schematic diagram of the structure of the sedimentation tank body of a sewage treatment system of a magnetic coagulation sedimentation tank proposed by the present invention.

[0018] Figure 3 It is a schematic diagram of the combined structure of the collection arc frame and the diversion inclined plate of a sewage treatment system of a magnetic coagulation sedimentation tank proposed by the present invention.

[0019] Figure 4 It is a schematic diagram of the combined structure of the collection box and the diversion screening mechanism of a sewage treatment system of a magnetic coagulation sedimentation tank proposed by the present invention.

[0020] Figure 5 is Figure 4 a cross-sectional view of the collection box and the mounting frame in

[0021] Figure 6 Schematic diagram of the diversion screening mechanism of a sewage treatment system with a magnetic coagulation sedimentation tank proposed by the present invention.

[0022] Figure 7 is Figure 6 the schematic plan view of.

[0023] Figure 8 Schematic diagram of the coagulation tank structure of a sewage treatment system with a magnetic coagulation sedimentation tank proposed by the present invention.

[0024] Figure 9 is Figure 8 the bottom view of the internal structure of the coagulation tank in.

[0025] Figure 10 Cross-sectional view of the rotating ring plate, evenly divided sliding frame and material guiding pipe structure in the evenly divided feeding mechanism of a sewage treatment system with a magnetic coagulation sedimentation tank proposed by the present invention.

[0026] Figure 11 is Figure 10 the drawing showing the overall structure being driven to flip.

[0027] In the figure: 1. Coagulation tank; 2. Upper mounting frame; 3. Delivery pipe; 4. Spray pipe; 5. Diversion inclined plate; 6. Sedimentation tank body; 7. Water pump; 8. Pump frame; 9. Collection arc frame; 10. High-shear machine; 11. Magnetic powder separator; 12. Water extraction pipe; 13. Pipe sleeve; 14. Collection box; 15. Partition plate; 16. Diversion screening mechanism; 1601. Installation frame; 1602. Installation rack; 1603. Sieve plate; 1604. Hydraulic cylinder 1; 1605. Frame; 1606. Air compressor; 1607. Connecting frame; 1608. Deflection shaft; 1609. Sealing belt 1; 1610. Integrating rod; 1611. Sealing belt 2; 1612. Knocking ball; 1613. Jet arc plate; 1614. Jet hole; 1615. Storage frame; 1616. Hydraulic cylinder 2; 1617. Oscillation spring rod; 17. Spray hole; 18. Feeding plate; 19. Feeding cylinder; 20. Drain hole; 21. Delivery pump; 22. Extraction pipe; 23. Evenly divided feeding mechanism; 2301. Evenly divided sliding frame; 2302. Rotating ring plate; 2303. Feed pipe; 2304. Connecting ring pipe; 2305. Feeding hole; 2306. Material guiding pipe; 2307. Installation sleeve; 2308. Air pump; 2309. Air guide pipe; 2310. Hollow block; 2311. Gas punching hole; 24. Stirring motor; 25. Installation rod; 26. Stirring shaft rod; 27. Stirring blade. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0029] The sewage treatment system with a magnetic coagulation sedimentation tank disclosed by the present invention is mainly applied to existing sewage treatment equipment. Sewage mixed with magnetic powder, coagulant and flocculant is introduced into the sedimentation tank for sedimentation to achieve solid-liquid separation. During the sedimentation process, the more magnetic flocs contained in the sewage, the slower the sedimentation speed, the more magnetic flocs accumulate at the bottom of the sedimentation tank, and the longer the time for the water body mixed in the magnetic flocs to be pressed out by gravity and the less the amount of water pressed out, resulting in a scenario where the existing sewage treatment equipment has too long a treatment time and incomplete solid-liquid separation.

[0030] Refer to Figures 1 - 11 , a sewage treatment system with a magnetic coagulation sedimentation tank, comprising: Coagulation tank 1; Upper mounting frame 2, arranged on the coagulation tank 1, on which a stirring motor 24 is fixedly connected. The output shaft of the stirring motor 24 is fixedly connected with a stirring shaft rod 26 through a coupling, and stirring blades 27 are arranged on the outer side wall of the stirring shaft rod 26; Uniform feeding mechanism 23, arranged at the upper mounting frame 2; Sedimentation tank body 6; Two collecting arc frames 9, arranged on both sides of the sedimentation tank body 6; Two diversion inclined plates 5, arranged on the side walls of the sedimentation tank body 6 above the collecting arc frames 9; Diversion screening mechanism 16, arranged at the diversion inclined plates 5; Magnetic powder separator 11; Two high-shear machines 10, arranged on the magnetic powder separator 11.

[0031] Refer to Figures 1 - 7 , in a preferred embodiment, the diversion screening mechanism 16 includes: Installation frame 1601, arranged equidistantly on the inclined surface of the diversion inclined plate 5, and the same deflection shaft 1608 is connected to the inner walls on both sides thereof through bearings; Sieve plate 1603, arranged outside the deflection shaft 1608. A sealing belt 1609 is fixedly connected to the lower part of the sieve plate 1603, and the sealing belt 1609 is arranged on one side of the installation frame 1601 close to the bottom end. A sealing belt 1611 is fixedly connected to the upper part of the sieve plate 1603, and one side of the sealing belt 1611 is fixedly connected to the top inner wall of the installation frame 1601; Installation frame 1602, arranged on the top of the installation frame 1601. Hydraulic cylinders 1604 are fixedly connected equidistantly on the side of the installation frame 1602 facing the installation frame 1601; Jet arc plate 1613, arranged at the output ends of a plurality of hydraulic cylinders 1604 and located inside the installation frame 1601.

[0032] In a specific application scenario, the solid-liquid mixture inside the coagulation tank 1 is introduced into the spray pipe 4 through the transfer pump 21, and is sprayed through the spraying holes 17 to each sieve plate 1603 of the diversion inclined plate 5. The sieve plate 1603 intercepts larger solid particles in the solid-liquid mixture, thereby reducing the sediment thickness at the bottom after sewage sedimentation and accelerating the sedimentation progress. At the same time, there is less sediment at the bottom of the sedimentation tank body 6, and the overall pressure exerted by the water body above it increases, accelerating the outflow of the water body in the sedimentation and improving the solid-liquid separation rate and reducing water loss.

[0033] Specifically, when the sieve plate 1603 screens solid particles, the adjusting hydraulic cylinder two 1616 drives the sieve plate 1603 to deflect. During the deflection of the sieve plate 1603, it squeezes the knocking balls 1612 on the inner and outer sides of the mounting frame 1601, causing the shock spring rod 1617 to be compressed. When the adjusting hydraulic cylinder two 1616 drives the sieve plate 1603 to reset, the shock spring rod 1617 continuously drives the knocking balls 1612 to knock on the sieve plate 1603, accelerating the falling of the solid particles attached thereto, preventing large particle solid impurities from accumulating on the sieve plate 1603 and causing sieve hole blockage, and at the same time, accelerating the passage of the liquid.

[0034] It should be noted that at regular intervals, the adjusting hydraulic cylinder one 1604 drives the jet arc plate 1613 to descend. At the same time, the air compressor 1606 is started. The air compressor 1606 introduces compressed gas into the jet arc plate 1613 and sprays it through the jet holes 1614 towards the brush plate. The impact of the gas causes the particles blocking the sieve holes on the sieve plate 1603 to break away, and the sieve plate 1603 is cleaned regularly to ensure that the liquid can smoothly pass through the sieve plate 1603 and enter the sedimentation tank body 6.

[0035] Refer to Figures 4 - 7 In a preferred embodiment, the diversion screening mechanism 16 further includes: Two connecting frames 1607, one is arranged on the outer side wall of the mounting frame 1601, and the other is arranged on the inner side wall of the mounting frame 1601. One side of the connecting frame 1607 located inside the mounting frame 1601 is hinged to the adjusting hydraulic cylinder two 1616, and the output end of the adjusting hydraulic cylinder two 1616 is hinged to one side of the sieve plate 1603; The storage frames 1615 are all arranged on the side of the connecting frame 1607 facing the sieve plate 1603. The shock spring rods 1617 are fixedly connected at equal intervals inside the storage frames 1615. The ends of a plurality of shock spring rods 1617 located on the same storage frame 1615 are fixedly connected to the same integration rod 1610. The outer side wall of the integration rod 1610 facing the sieve plate 1603 is fixedly connected with knocking balls 1612 at equal intervals; The frame 1605 is arranged on the top of the mounting frame 1602. An air compressor 1606 is fixedly connected inside the frame 1605. The air output end of the air compressor 1606 is connected to the inside of the jet arc plate 1613 through a pipeline. Spray holes 1614 are formed on the arc surface of the jet arc plate 1613 facing the sieve plate 1603.

[0036] Referring to Figure 1 、 Figure 3 and Figure 4 In a preferred embodiment, separating plates 15 are fixedly connected to the inclined surfaces between every two adjacent mounting frames 1601, and mounting grooves are formed in the two separating plates 15 in the middle. A spray pipe 4 is fixedly connected inside the mounting grooves. Spray holes 17 are formed on the outer side wall of the spray pipe 4 facing the guide inclined plate 5.

[0037] Referring to Figure 1 and Figure 8 In a preferred embodiment, a delivery pump 21 is fixedly connected to the top of the coagulation tank 1 close to the spray pipe 4. An extraction pipe 22 is fixedly connected to the extraction end of the delivery pump 21. The pipe orifice of the extraction pipe 22 is located in the coagulation tank 1. A delivery pipe 3 is fixedly connected to the delivery end of the delivery pump 21. One end of the delivery pipe 3 is inserted into the inside of the spray pipe 4.

[0038] Referring to Figure 4 and Figure 5 In a preferred embodiment, mounting holes are formed at the lower part of each mounting frame 1601 where the guide inclined plate 5 is located. A collection box 14 is fixedly connected inside each mounting hole. A blanking plate 18 is connected to the top of the collection box 14 through a hinge. Blanking cylinders 19 are equidistantly connected to the inner wall on one side of the collection box 14 below the blanking plate 18 through hinges. The output end of the blanking cylinder 19 is connected to the bottom of the blanking plate 18 through a hinge. Drain holes 20 are formed in the bottom of the collection box 14.

[0039] Referring to Figure 1 and Figure 2 In a preferred embodiment, a pump stand 8 is fixedly connected to one side of the sedimentation tank body 6. A water pump 7 is fixedly connected to the top of the pump stand 8. A water suction pipe 12 is fixedly connected to the water inlet end of the water pump 7. The pipe orifice of the water suction pipe 12 is located inside the sedimentation tank body 6. A pipe sleeve 13 is fixedly connected to the inner wall of the sedimentation tank body 6 close to the water suction pipe 12. The water suction pipe 12 passes through the pipe sleeve 13.

[0040] Referring to Figure 1 、 Figures 8 - 11 In a preferred embodiment, the equalizing feeding mechanism 23 includes: An equalizing sliding frame \(2301\) with mounting rods \(25\) fixedly connected thereto at equal intervals. One end of the mounting rod \(25\) is fixedly connected to the outer side wall of the stirring shaft rod \(26\); The rotating ring plate 2302 is slidably connected to the inside of the equalizing sliding frame 2301; The feed pipe 2303 is arranged inside the fixing hole formed on the rotating ring plate 2302; The material guiding pipe 2306 is arranged in the communication hole formed below the equalizing sliding frame 2301, and material discharging holes 2305 are formed on the outer side wall of the material guiding pipe 2306 facing downwards.

[0041] Specifically, when adding PAC, magnetic powder, and PAM, they are respectively added into the equalizing sliding frame 2301 through the respective feed pipes 2303. When starting the stirring motor 24 and the stirring motor 24 drives the stirring blades 27 to stir the liquid in the coagulation tank 1, the stirring shaft rod 26 synchronously drives the equalizing sliding frame 2301 to rotate, so that the PAC, magnetic powder, and PAM added into the inside of the equalizing sliding frame 2301 are quickly filled into different material guiding pipes 2306, and they gradually slide down along the material guiding pipes 2306 and are discharged into the liquid in the coagulation tank 1 through the respective material discharging holes 2305, quickly completing the uniform mixing of PAC, magnetic powder, PAM and the liquid, and improving the flocculation efficiency.

[0042] It should be noted that after PAC, magnetic powder, and PAM fall into the inside of the material guiding pipe 2306, start the air pump 2308, and the air pump 2308 introduces gas into each hollow block 2310 through the communicating ring pipe 2304 and sprays it out through the gas punching holes 2311. The impact of the gas drives PAC, magnetic powder, and PAM to move towards the material discharging holes 2305, ensuring that PAC, magnetic powder, and PAM are continuously discharged from the respective material discharging holes 2305 during the process of flowing from top to bottom, and further improving the uniformity of the addition of PAC, magnetic powder, and PAM.

[0043] Refer to Figure 10 and Figure 11 , in a preferred embodiment, the equalizing feeding mechanism 23 further includes: The mounting sleeve 2307 is arranged on the outer side wall of the equalizing sliding frame 2301, and an air pump 2308 is fixedly connected to its inside; The hollow block 2310 is arranged on the inner side wall of the material guiding pipe 2306 close to the equalizing sliding frame 2301, a gas punching hole 2311 is formed on the outer side wall of the hollow block 2310 facing the material discharging hole 2305, a sub-hole is formed on the hollow block 2310, and a sub-pipe is fixedly connected to the inside of the sub-hole; The communicating ring pipe 2304 is arranged on multiple sub-pipes, an air delivery end of the air pump 2308 is fixedly connected to an air guiding pipe 2309, and one end of the air guiding pipe 2309 is inserted into the inside of the communicating ring pipe 2304.

[0044] A sewage treatment method for a magnetic coagulation sedimentation tank uses a sewage treatment system for a magnetic coagulation sedimentation tank as described above, and includes the following steps: Step 1: Add PAC, magnetic powder, and PAM into the evenly-dividing sliding frame 2301 through respective feed pipes 2303. When starting the stirring motor 24 and the stirring motor 24 drives the stirring blades 27 to stir the liquid in the coagulation tank 1, the stirring shaft rod 26 synchronously drives the evenly-dividing sliding frame 2301 to rotate, so that the PAC, magnetic powder, and PAM added into the interior of the evenly-dividing sliding frame 2301 are quickly filled into different guide pipes 2306. Start the air pump 2308, and the air pump 2308 introduces gas into each hollow block 2310 through the connecting ring pipe 2304 and sprays it out through the gas punching holes 2311. The impact of the gas drives the PAC, magnetic powder, and PAM to move towards the blanking holes 2305, ensuring that during the process of flowing from top to bottom, the PAC, magnetic powder, and PAM are continuously discharged from each blanking hole 2305 and discharged into the liquid in the coagulation tank 1 through each blanking hole 2305, quickly completing the uniform mixing of the PAC, magnetic powder, PAM and the liquid; Step 2: After the mixing is completed, the solid-liquid mixture inside the coagulation tank 1 is introduced into the spray pipe 4 through the delivery pump 21, and it is sprayed towards each sieve plate 1603 of the diversion inclined plate 5 through the spray holes 17. The sieve plates 1603 intercept the larger solid particles in the solid-liquid mixture. At the same time, adjust the hydraulic cylinder two 1616 to drive the sieve plate 1603 to deflect. During the deflection of the sieve plate 1603, it squeezes the knocking balls 1612 on the inner and outer sides of the mounting frame 1601, so that the shock spring rods 1617 are compressed. When the hydraulic cylinder two 1616 drives the sieve plate 1603 to reset, the shock spring rods 1617 continuously drive the knocking balls 1612 to knock on the sieve plate 1603, accelerating the falling of the solid particles attached thereto, preventing large particle solid impurities from accumulating on the sieve plate 1603 and causing the sieve holes to be blocked, and accelerating the passage of the liquid; Step 3: The sewage enters the sedimentation tank body no. 6 for sedimentation operation. After a period of time, the sedimentation is completed. Start the water pump 7 to pump out the upper layer of water body, and then pump the sediment at the lower layer of the sedimentation tank body no. 6 into the high-shear machine 10 through the lift pump. After shearing, it is introduced into the magnetic powder separator 11. The magnetic powder separator 11 stirs the sludge at high speed to separate the magnetic powder from the sludge. The separated magnetic powder is discharged from the magnetic powder discharge channel, and the sludge is discharged from the sludge outlet at the bottom of the magnetic powder separator 11 to end the operation.

[0045] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A sewage treatment system with a magnetic coagulation sedimentation tank, characterized in that, Including: Coagulation tank (1); Upper mounting frame (2), arranged on the coagulation tank (1), on which a stirring motor (24) is fixedly connected, the output shaft of the stirring motor (24) is fixedly connected with a stirring shaft rod (26) through a coupling, and stirring blades (27) are arranged on the outer side wall of the stirring shaft rod (26); Equalizing feeding mechanism (23), arranged at the upper mounting frame (2); Sedimentation tank body (6); Two collecting arc frames (9), arranged on both sides of the sedimentation tank body (6); Two diversion inclined plates (5), arranged on the side walls of the sedimentation tank body (6) above the collecting arc frames (9); Diversion screening mechanism (16), arranged at the diversion inclined plates (5); Magnetic powder separator (11); Two high shear machines (10), arranged on the magnetic powder separator (11).

2. The sewage treatment system with a magnetic coagulation sedimentation tank according to claim 1, wherein, The said diversion screening mechanism (16) includes: Mounting frame (1601), arranged at equal intervals on the inclined surface of the diversion inclined plate (5), and the same deflection shaft (1608) is connected to the inner walls on both sides thereof through bearings; Sieve plate (1603), arranged outside the deflection shaft (1608), a sealing belt one (1609) is fixedly connected to the lower part of the sieve plate (1603), the sealing belt one (1609) is arranged on one side of the mounting frame (1601) close to the bottom end, a sealing belt two (1611) is fixedly connected to the upper part of the sieve plate (1603), and one side of the sealing belt two (1611) is fixedly connected to the top inner wall of the mounting frame (1601); Mounting rack (1602), arranged on the top of the mounting frame (1601), and hydraulic cylinders one (1604) are fixedly connected at equal intervals on the side of the mounting rack (1602) facing the mounting frame (1601); Jet arc plate (1613), arranged at the output ends of a plurality of hydraulic cylinders one (1604), and it is located inside the mounting frame (1601).

3. The sewage treatment system with a magnetic coagulation sedimentation tank according to claim 2, characterized in that, The said diversion screening mechanism (16) further includes: Two connecting frames (1607), one is arranged on the outer side wall of the mounting frame (1601), and the other is arranged on the inner side wall of the mounting frame (1601). One side of the connecting frame (1607) located inside the mounting frame (1601) is connected to a hydraulic cylinder two (1616) through a hinge, and the output end of the hydraulic cylinder two (1616) is connected to one side of the sieve plate (1603) through a hinge; Receiving frame (1615), all arranged on the side of the connecting frame (1607) facing the sieve plate (1603), shock spring rods (1617) are fixedly connected at equal intervals inside the receiving frame (1615), and the ends of a plurality of shock spring rods (1617) located on the same receiving frame (1615) are fixedly connected to the same integrating rod (1610), and knocking balls (1612) are fixedly connected at equal intervals on the outer side wall of the integrating rod (1610) facing the sieve plate (1603); The frame (1605) is arranged on the top of the mounting frame (1602). An air compressor (1606) is fixedly connected inside the frame (1605). The air delivery end of the air compressor (1606) is connected to the inside of the jet arc plate (1613) through a pipeline. Spray holes (1614) are formed on the arc surface of the jet arc plate (1613) facing the sieve plate (1603).

4. The sewage treatment system with a magnetic coagulation sedimentation tank according to claim 3, characterized in that, The guide inclined plate (5) is fixedly connected with a partition plate (15) on the inclined surface between every two adjacent mounting frames (1601). Installation grooves are formed on the two middle partition plates (15). A spray pipe (4) is fixedly connected inside the installation grooves. Spray holes (17) are formed on the outer side wall of the spray pipe (A) facing the guide inclined plate (5).

5. The sewage treatment system with a magnetic coagulation sedimentation tank according to claim 4, characterized in that, A delivery pump (21) is fixedly connected to the top of the coagulation tank (1) close to the spray pipe (4). An extraction pipe (22) is fixedly connected to the extraction end of the delivery pump (21). The pipe orifice of the extraction pipe (22) is located in the coagulation tank (1). A delivery pipe (3) is fixedly connected to the delivery end of the delivery pump (21). One end of the delivery pipe (3) is inserted into the inside of the spray pipe (4).

6. The sewage treatment system with a magnetic coagulation sedimentation tank according to claim 5, characterized in that, Installation holes are formed at the lower part of each mounting frame (1601) where the guide inclined plate (5) is located. A collection box (14) is fixedly connected inside each installation hole. A blanking plate (18) is connected to the top of the collection box (14) through a hinge. A blanking cylinder (19) is equidistantly connected to the inner wall of one side of the collection box (14) below the blanking plate (18) through a hinge. The output end of the blanking cylinder (19) is connected to the bottom of the blanking plate (18) through a hinge. Drain holes (20) are formed at the bottom of the collection box (14).

7. The sewage treatment system with a magnetic coagulation sedimentation tank according to claim 6, characterized in that, A pump frame (8) is fixedly connected to one side of the sedimentation tank body (6). A water pump (7) is fixedly connected to the top of the pump frame (8). A water suction pipe (12) is fixedly connected to the water inlet end of the water pump (7). The pipe orifice of the water suction pipe (12) is located inside the sedimentation tank body (6). A pipe sleeve (13) is fixedly connected to the inner wall of one side of the sedimentation tank body (6) close to the water suction pipe (12). The water suction pipe (12) passes through the pipe sleeve (13).

8. A sewage treatment system with a magnetic coagulation sedimentation tank according to claim 7, characterized in that, The uniform feeding mechanism (23) includes: A uniform sliding frame (2301) is fixedly connected with mounting rods (25) equidistantly. One end of the mounting rod (25) is fixedly connected to the outer side wall of the stirring shaft rod (26). A rotating ring plate (2302) is slidably connected inside the uniform sliding frame (2301). A feed pipe (2303) is arranged inside a fixing hole formed on the rotating ring plate (2302). A guide pipe (2306) is arranged in a communication hole formed below the uniform sliding frame (2301). Blanking holes (2305) are formed on the outer side wall of the guide pipe (2306) facing downwards.

9. The sewage treatment system with a magnetic coagulation sedimentation tank according to claim 8, characterized in that The uniform feeding mechanism (23) further includes: An installation sleeve (2307) is arranged on the outer side wall of the uniform sliding frame (2301). An air pump (2308) is fixedly connected inside it. The hollow block (2310) is arranged on the inner side wall of the material guiding pipe (2306) close to the equalizing sliding frame (2301). A gas punching hole (2311) is formed on the outer side wall facing the blanking hole (2305). A branch hole is formed on the hollow block (2310), and a branch pipe is fixedly connected inside the branch hole. The connecting ring pipe (2304) is arranged on a plurality of branch pipes. The gas delivery end of the air pump (2308) is fixedly connected with a gas guiding pipe (2309), and one end of the gas guiding pipe (2309) is inserted into the inside of the connecting ring pipe (2304).

10. A sewage treatment method using a magnetic coagulation sedimentation tank, which uses a sewage treatment system with a magnetic coagulation sedimentation tank as described in claim 9, characterized in that, It includes the following steps: Step 1: Add PAC, magnetic powder, and PAM into the equalizing sliding frame (2301) through the respective feeding pipes (2303). Start the stirring motor (24). When the stirring motor (24) drives the stirring blades (27) to stir the liquid in the coagulation tank (1), the stirring shaft rod (26) synchronously drives the equalizing sliding frame (2301) to rotate, so that the PAC, magnetic powder, and PAM added into the inside of the equalizing sliding frame (2301) are quickly filled into different material guiding pipes (2306). Start the air pump (2308), and the air pump (2308) introduces gas into each hollow block (2310) through the connecting ring pipe (2304) and sprays it out through the gas punching hole (2311). The impact of the gas drives the PAC, magnetic powder, and PAM to move towards the blanking hole (2305), ensuring that during the process of flowing from top to bottom, the PAC, magnetic powder, and PAM are continuously discharged from each blanking hole (2305) and discharged into the liquid in the coagulation tank (1) through each blanking hole (2305), quickly completing the uniform mixing of the PAC, magnetic powder, PAM and the liquid. Step 2: After the mixing is completed, the solid-liquid mixture inside the coagulation tank (1) is introduced into the spray pipe (4) through the delivery pump (21), and it is sprayed towards each sieve plate (1603) of the diversion inclined plate (5) through the spray holes (17). The larger solid particles in the solid-liquid mixture are intercepted by the sieve plate (1603). At the same time, adjust the hydraulic cylinder two (1616) to drive the sieve plate (1603) to deflect. During the deflection of the sieve plate (1603), it squeezes the knocking balls (1612) on the inner and outer sides of the mounting frame (1601), so that the shock spring rod (1617) is compressed. When the hydraulic cylinder two (1616) drives the sieve plate (1603) to reset, the shock spring rod (1617) continuously drives the knocking balls (1612) to knock on the sieve plate (1603), accelerating the falling of the solid particles attached thereto, preventing large particle solid impurities from accumulating on the sieve plate (1603) and causing the sieve holes to be blocked, and accelerating the passage of the liquid. Step 3: The sewage enters the inside of the sedimentation tank body (6) to start the sedimentation operation. After a period of time, the sedimentation is completed. Then, start the water pump (7) to pump out the upper layer of water. Next, use the lift pump to pump the sediment at the lower layer of the sedimentation tank body (6) into the high-shear machine (10). After shearing, it is introduced into the magnetic powder separator (11). The magnetic powder separator (11) stirs the sludge at a high speed to separate the magnetic powder from the sludge. The separated magnetic powder is discharged from the magnetic powder discharge channel, and the sludge is discharged from the sludge outlet at the bottom of the magnetic powder separator (11) to end the operation.

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