A sewage treatment system and method containing a magnetic coagulation sedimentation tank

Abstract

The present invention discloses a sewage treatment system and method containing a magnetic coagulation sedimentation tank, which relates to the field of water pollution control and treatment technology, including: a coagulation tank; an upper mounting frame, which is arranged on the coagulation tank and fixedly connected to a stirring motor, wherein the output shaft of the stirring motor is fixedly connected to a stirring shaft via a coupling, and the outer wall of the stirring shaft is provided with stirring blades; and an equal distribution feeding mechanism. The sewage treatment system and method containing a magnetic coagulation sedimentation tank disclosed by the present invention has the advantages of introducing the solid and liquid inside the coagulation tank into a nozzle through a delivery pump, which is sprayed through the spray hole to each sieve plate of the guide inclined plate, and the sieve plate intercepts larger solid particles in the solid-liquid mixture, thereby reducing the sediment thickness at the bottom after the sewage is settled and accelerating the sedimentation process. At the same time, the sediment at the bottom of the sedimentation tank body is less, and the overall pressure exerted on it by the water body above is increased, which accelerates the outflow of the water body in the sedimentation, improves the solid-liquid separation rate and reduces the water loss.

Description

Technical Field

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

[0002] In water pollution control and treatment, in order to improve the efficiency of sewage treatment, magnetic powder, coagulants and flocculants are usually added to the sewage simultaneously to accelerate sewage sedimentation and improve sewage treatment efficiency.

[0003] In existing sewage treatment equipment, sewage mixed with magnetic powder, coagulants and flocculants 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 its sedimentation rate, the more magnetic flocs accumulate at the bottom of the sedimentation tank, and the longer it takes for the water mixed in the magnetic flocs to be squeezed out by gravity, and the less the squeezed out amount, which results in the existing sewage treatment equipment having too long a treatment time and incomplete solid-liquid separation. Summary of the Invention

[0004] The invention discloses a sewage treatment system containing a magnetic coagulation sedimentation tank, which aims to solve the technical problems in existing sewage treatment equipment, in which sewage mixed with magnetic powder, a coagulant and a 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, the longer it takes for water mixed in the magnetic flocs to be squeezed out by gravity, and the less the squeezed-out amount, which leads to excessively long treatment time and incomplete solid-liquid separation in the existing sewage treatment equipment.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A sewage treatment system containing a magnetic coagulation sedimentation tank, comprising:

[0007] Coagulation tank;

[0008] The upper mounting frame is arranged on the coagulation tank, and a stirring motor is fixedly connected to the upper mounting frame. The output shaft of the stirring motor is fixedly connected to the stirring shaft through a coupling, and the outer wall of the stirring shaft is provided with stirring blades;

[0009] The evenly distributed feeding mechanism is set on the upper mounting frame;

[0010] Sedimentation tank body;

[0011] Two collecting arc frames are set on both sides of the sedimentation tank body;

[0012] Two guide inclined plates are arranged on the side wall of the sedimentation tank body above the collecting arc frame;

[0013] The diversion and screening mechanism is arranged at the diversion inclined plate;

[0014] Magnetic powder separator;

[0015] Two high shears are installed on the magnetic powder separator.

[0016] In a preferred embodiment, the diversion and screening mechanism includes:

[0017] The mounting frame is equidistantly arranged on the inclined surface of the guide ramp, and the inner walls on both sides thereof are connected to the same deflection shaft through bearings;

[0018] The sieve plate is arranged outside the deflection shaft, the sieve plate is fixedly connected to a sealing belt 1 at the bottom, the sealing belt 1 is arranged on one side of the installation frame near the bottom end, and the sieve plate is fixedly connected to a sealing belt 2 at the top, one side of the sealing belt 2 is fixedly connected to the top inner wall of the installation frame;

[0019] A mounting frame is arranged on the top of the mounting frame, and a hydraulic cylinder 1 is fixedly connected to the side of the mounting frame facing the mounting frame at an equal distance;

[0020] The jet arc plate is arranged at the output end of one of the plurality of hydraulic cylinders and is located inside the installation frame.

[0021] In a preferred embodiment, the diversion and screening mechanism further comprises:

[0022] Two connecting frames, one is arranged on the outer wall of the installation frame, and the other is arranged on the inner wall of the installation frame. One side of the connecting frame inside the installation frame is connected to the second hydraulic cylinder through a hinge, and the output end of the second hydraulic cylinder is connected to one side of the screen plate through a hinge;

[0023] The storage frames are all arranged on the side of the connecting frame facing the screen plate, and the interior of the storage frame is fixedly connected with oscillation spring rods at equal distances, and the ends of multiple oscillation spring rods located on the same storage frame are fixedly connected with the same integration rod, and the outer side wall of the integration rod facing the screen plate is fixedly connected with knocking balls at equal distances;

[0024] The frame is arranged on the top of the mounting frame, the interior of the frame is fixedly connected with an air compressor, the air delivery end of the air compressor is connected to the interior of the jet arc plate through a pipeline, and jet holes are opened on the arc surface of the jet arc plate facing the screen plate.

[0025] In a preferred solution, the guide inclined plate is fixedly connected to a partition plate on the inclined surface between each two adjacent mounting frames, and the two middle partition plates are each provided with a mounting groove, the interior of the mounting groove is fixedly connected to a nozzle, and the nozzle is provided with a spray hole on the outer wall facing the guide inclined plate.

[0026] In a preferred embodiment, the coagulation tank is fixedly connected to a delivery pump near the top of the nozzle, and the extraction end of the delivery pump is fixedly connected to an extraction pipe, the mouth of the extraction pipe is located in the coagulation tank, the delivery end of the delivery pump is fixedly connected to the delivery pipe, and one end of the delivery pipe is inserted into the interior of the nozzle.

[0027] In a preferred solution, the guide inclined plate is provided with a mounting hole below each mounting frame, and a collection box is fixedly connected to the inside of each mounting hole. The top of the collection box is connected to the blanking plate through a hinge. The inner wall of one side of the collection box below the blanking plate is equidistantly connected to the blanking cylinder through a hinge. The output end of the blanking cylinder is connected to the bottom of the blanking plate through a hinge, and a drainage hole is provided at the bottom of the collection box.

[0028] In a preferred embodiment, a pump stand is fixedly connected to one side of the sedimentation tank body, and a water pump is fixedly connected to the top of the pump stand, the water inlet end of the water pump is fixedly connected to a pumping pipe, the mouth of the pumping pipe is located inside the sedimentation tank body, and a pipe sleeve is fixedly connected to the inner wall of the sedimentation tank body close to the pumping pipe, and the pumping pipe passes through the pipe sleeve.

[0029] In a preferred embodiment, the evenly distributed feeding mechanism comprises:

[0030] An evenly divided sliding frame is fixedly connected to a mounting rod at equal distances, one end of the mounting rod is fixedly connected to the outer wall of the stirring shaft;

[0031] The rotating ring plate is slidably connected to the interior of the equalizing sliding frame;

[0032] The feed pipe is arranged inside the fixed hole opened on the rotating ring plate;

[0033] The material guide pipe is arranged in the communicating hole opened below the evenly divided sliding frame, and the outer side wall of the material guide pipe facing downward is provided with a material discharge hole.

[0034] In a preferred embodiment, the evenly distributed feeding mechanism further comprises:

[0035] The mounting sleeve is arranged on the outer side wall of the equally divided sliding frame, and an air pump is fixedly connected to the interior of the mounting sleeve;

[0036] The hollow block is arranged on the inner side wall of the material guide pipe close to the equalizing sliding frame, and the outer side wall facing the material discharge hole is provided with a gas punching hole. The hollow block is provided with a branch hole, and the inside of the branch hole is fixedly connected with a branch pipe;

[0037] The connecting ring pipe is arranged on a plurality of branch pipes. The gas delivery end of the air pump is fixedly connected with an air guide pipe, and one end of the air guide pipe is plugged into the interior of the connecting ring pipe.

[0038] A method for treating sewage using a magnetic coagulation sedimentation tank, using a sewage treatment system using a magnetic coagulation sedimentation tank as described above, comprising the following steps:

[0039] Step 1: Add PAC, magnetic powder, and PAM into the equal distribution slide frame through each feeding pipe respectively, start the stirring motor, and when the stirring motor drives the stirring blade to stir the liquid in the coagulation tank, the stirring shaft synchronously drives the equal distribution slide frame to rotate, so that the PAC, magnetic powder, and PAM added to the equal distribution slide frame are quickly filled into different guide pipes, and the air pump is started. The air pump introduces gas into each hollow block through the connecting ring pipe and sprays it out through the gas punching hole. The impact of the gas drives PAC, magnetic powder, and PAM to move toward the discharge hole, ensuring that PAC, magnetic powder, and PAM are continuously discharged from each discharge hole during the flow from top to bottom, and discharged into the liquid in the coagulation tank through each discharge hole, quickly completing the uniform mixing of PAC, magnetic powder, PAM and liquid;

[0040] Step 2: After the mixing is completed, the solid and liquid inside the coagulation tank are introduced into the nozzle through the delivery pump, and are sprayed to each sieve plate of the guide inclined plate through the spray hole. The larger solid particles in the solid-liquid mixture are intercepted by the sieve plate. At the same time, the hydraulic cylinder 2 is adjusted to drive the sieve plate to deflect. During the deflection of the sieve plate, it squeezes the knocking balls inside and outside the installation frame, so that the oscillation spring rod is compressed. When the hydraulic cylinder 2 drives the sieve plate to reset, the oscillation spring rod continuously drives the knocking balls to knock on the sieve plate, accelerating the falling of the solid particles attached thereto, avoiding the accumulation of large particles of solid impurities on the sieve plate to cause clogging of the sieve holes, and accelerating the passage of the liquid;

[0041] Step 3: The sewage enters the sedimentation tank body and begins sedimentation. After a period of time, the sedimentation is completed, and the water pump is started to extract the upper water body. Then, the sediment in the lower layer of the sedimentation tank body is pumped into the high shear machine through the lifting pump. After shearing, it is introduced into the magnetic powder separator. The magnetic powder separator 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, and the operation is completed.

[0042] From the above, it can be seen that the sewage treatment system containing a magnetic coagulation sedimentation tank provided by the present invention has the function of introducing the solid and liquid inside the coagulation tank into the nozzle through the delivery pump, which is sprayed to the various sieve plates of the guide inclined plate through the spray hole, and the larger solid particles in the solid-liquid mixture are intercepted by the sieve plate, thereby reducing the sedimentation thickness at the bottom after the sewage is settled, and accelerating the sedimentation progress. At the same time, there is less sedimentation at the bottom of the sedimentation tank body, and the overall pressure caused by the water body above it increases, which accelerates the outflow of the water body in the sedimentation, improves the solid-liquid separation rate and reduces the water loss. Technical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic diagram of the overall structure of a sewage treatment system containing a magnetic coagulation sedimentation tank proposed by the present invention.

[0044] Figure 2 This is a schematic diagram of the structure of the sedimentation tank body of a sewage treatment system containing a magnetic coagulation sedimentation tank proposed by the present invention.

[0045] Figure 3 This is a schematic diagram of the combined structure of a collection arc frame and a guide inclined plate of a sewage treatment system containing a magnetic coagulation sedimentation tank proposed by the present invention.

[0046] Figure 4 This is a schematic diagram of the combined structure of a collection box and a diversion screening mechanism of a sewage treatment system containing a magnetic coagulation sedimentation tank proposed by the present invention.

[0047] Figure 5 for Figure 4 Cross-sectional view of the collection box and installation frame structure.

[0048] Figure 6 This is a schematic diagram of the diversion and screening mechanism of a sewage treatment system containing a magnetic coagulation sedimentation tank proposed by the present invention.

[0049] Figure 7 for Figure 6 Schematic diagram of the planar structure.

[0050] Figure 8 This is a schematic diagram of the coagulation tank structure of a sewage treatment system containing a magnetic coagulation sedimentation tank proposed by the present invention.

[0051] Figure 9 for Figure 8 Bottom view of the internal structure of the middle coagulation tank.

[0052] Figure 10 This is a cross-sectional view of the rotating ring plate, the equilibrating sliding frame and the guide pipe structure in the equilibrating feeding mechanism of a sewage treatment system containing a magnetic coagulation sedimentation tank proposed by the present invention.

[0053] Figure 11 for Figure 10 Drive the overall structure to flip the diagram.

[0054] In the figure: 1. Coagulation tank; 2. Upper mounting frame; 3. Delivery pipe; 4. Nozzle; 5. Diversion inclined plate; 6. Sedimentation tank body; 7. Water pump; 8. Pump frame; 9. Collecting arc frame; 10. High shear machine; 11. Magnetic powder separator; 12. Suction pipe; 13. Pipe sleeve; 14. Collecting box; 15. Partition plate; 16. Diversion screening mechanism; 1601. Mounting frame; 1602. Mounting frame; 1603. Screen plate; 1604. Hydraulic cylinder 1; 1605. Frame; 1606. Air compressor; 1607. Connecting frame; 1608. Deflection shaft; 1609. Sealing belt 1; 1610. Integral 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, discharge plate; 19, discharge cylinder; 20, drainage hole; 21, delivery pump; 22, extraction pipe; 23, equal distribution feeding mechanism; 2301, equal distribution sliding frame; 2302, rotating ring plate; 2303, feed pipe; 2304, connecting ring pipe; 2305, discharge hole; 2306, guide pipe; 2307, mounting sleeve; 2308, air pump; 2309, air guide pipe; 2310, hollow block; 2311, gas punching hole; 24, stirring motor; 25, mounting rod; 26, stirring shaft; 27, stirring blade. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0056] The sewage treatment system containing a magnetic coagulation sedimentation tank disclosed in the present invention is mainly used in 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 its sedimentation speed, the more magnetic flocs accumulate at the bottom of the sedimentation tank, the longer the time it takes for the water mixed in the magnetic flocs to be squeezed out by gravity, and the less the squeezed out amount, which leads to the existing sewage treatment equipment having too long a treatment time and incomplete solid-liquid separation.

[0057] Reference Figures 1-11 , a sewage treatment system containing a magnetic coagulation sedimentation tank, comprising:

[0058] Coagulation tank 1;

[0059] The upper mounting frame 2 is provided on the coagulation tank 1, and is fixedly connected to a stirring motor 24. The output shaft of the stirring motor 24 is fixedly connected to a stirring shaft 26 via a coupling. The outer wall of the stirring shaft 26 is provided with a stirring blade 27.

[0060] The evenly distributed feeding mechanism 23 is provided on the upper mounting frame 2;

[0061] Sedimentation tank body 6;

[0062] Two collecting arc frames 9 are arranged on both sides of the sedimentation tank body 6;

[0063] Two guide inclined plates 5 are provided on the side wall of the sedimentation tank body 6 above the collecting arc frame 9;

[0064] The diversion and screening mechanism 16 is provided at the diversion inclined plate 5;

[0065] Magnetic powder separator 11;

[0066] Two high shears 10 are installed on the magnetic powder separator 11 .

[0067] Reference Figure 1-Figure 7 In a preferred embodiment, the diversion and screening mechanism 16 includes:

[0068] The mounting frame 1601 is equidistantly arranged on the inclined surface of the guide ramp 5, and the inner walls on both sides thereof are connected to the same deflection shaft 1608 through bearings;

[0069] The sieve plate 1603 is disposed outside the deflection shaft 1608. A sealing strip 1609 is fixedly connected to the lower portion of the sieve plate 1603. The sealing strip 1609 is disposed on one side of the mounting frame 1601 near the bottom. A sealing strip 2 1611 is fixedly connected to the upper portion of the sieve plate 1603. One side of the sealing strip 1611 is fixedly connected to the top inner wall of the mounting frame 1601.

[0070] The mounting frame 1602 is provided on the top of the mounting frame 1601. A hydraulic cylinder 1604 is fixedly connected to the side of the mounting frame 1602 facing the mounting frame 1601 at an equal distance.

[0071] The jet arc plate 1613 is arranged at the output end of the plurality of hydraulic cylinders 1604 and is located inside the mounting frame 1601 .

[0072] In a specific application scenario, the solid and liquid inside the coagulation tank 1 are introduced into the nozzle 4 through the delivery pump 21, and are sprayed to the various sieve plates 1603 of the guide inclined plate 5 through the spray hole 17. The larger solid particles in the solid-liquid mixture are intercepted by the sieve plate 1603, thereby reducing the sediment thickness at the bottom after the sewage settles 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 on it by the water above increases, which accelerates the outflow of the water in the sedimentation, improves the solid-liquid separation rate and reduces water loss.

[0073] Specifically, when the sieve plate 1603 is screening solid particles, the hydraulic cylinder 2 1616 is adjusted to drive the sieve plate 1603 to deflect. During the deflection of the sieve plate 1603, it squeezes the knocking balls 1612 inside and outside the mounting frame 1601, causing the oscillation spring rod 1617 to be compressed. When the hydraulic cylinder 2 1616 drives the sieve plate 1603 to reset, the oscillation 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, avoiding the accumulation of large solid impurities on the sieve plate 1603 and causing the sieve holes to be blocked, and at the same time, accelerating the passage of the liquid.

[0074] It should be noted that, at regular intervals, the hydraulic cylinder 1604 is adjusted to drive 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 toward the brush plate through the jet hole 1614. The impact of the gas causes the particles blocked in the sieve holes on the sieve plate 1603 to be detached. The sieve plate 1603 is cleaned regularly to ensure that the liquid can smoothly pass through the sieve plate 1603 into the sedimentation tank body 6.

[0075] Reference Figure 4-Figure 7 In a preferred embodiment, the diversion and screening mechanism 16 further includes:

[0076] Two connecting frames 1607, one is provided on the outer wall of the installation frame 1601, and the other is provided on the inner wall of the installation frame 1601. One side of the connecting frame 1607 located inside the installation frame 1601 is connected to the second hydraulic cylinder 1616 via a hinge. The output end of the second hydraulic cylinder 1616 is connected to one side of the screen plate 1603 via a hinge.

[0077] The storage frames 1615 are all arranged on the side of the connecting frame 1607 facing the screen plate 1603. Oscillation spring rods 1617 are fixedly connected to the interior of the storage frames 1615 at equal intervals. The ends of the multiple oscillation spring rods 1617 located on the same storage frame 1615 are fixedly connected to the same integration rod 1610. The integration rod 1610 is fixedly connected to the outer wall of the screen plate 1603 at equal intervals with knocking balls 1612.

[0078] The frame 1605 is arranged on the top of the mounting frame 1602. The air compressor 1606 is fixedly connected to the inside of 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. The jet arc plate 1613 has jet holes 1614 on the arc surface facing the screen plate 1603.

[0079] Reference Figure 1 、 Figure 3 and Figure 4In a preferred embodiment, the guide inclined plate 5 is fixedly connected to a partition plate 15 on the inclined surface between each two adjacent mounting frames 1601, and the two partition plates 15 located in the middle are both provided with mounting grooves, and the inside of the mounting groove is fixedly connected to a nozzle 4, and the nozzle 4 is provided with a spray hole 17 on the outer wall facing the guide inclined plate 5.

[0080] Reference Figure 1 and Figure 8 In a preferred embodiment, a delivery pump 21 is fixedly connected to the top of the coagulation tank 1 near the nozzle 4, and an extraction pipe 22 is fixedly connected to the extraction end of the delivery pump 21. The mouth of the extraction pipe 22 is located in the coagulation tank 1, and the delivery end of the delivery pump 21 is fixedly connected to the delivery pipe 3. One end of the delivery pipe 3 is inserted into the interior of the nozzle 4.

[0081] Reference Figure 4 and Figure 5 In a preferred embodiment, the guide inclined plate 5 is provided with a mounting hole below each mounting frame 1601, and a collecting box 14 is fixedly connected to the inside of each mounting hole. The top of the collecting box 14 is connected to the blanking plate 18 through a hinge. The inner wall of one side of the collecting box 14 below the blanking plate 18 is equidistantly connected to the blanking cylinder 19 through a hinge. The output end of the blanking cylinder 19 is connected to the bottom of the blanking plate 18 through a hinge, and a drainage hole 20 is provided at the bottom of the collecting box 14.

[0082] Reference 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, and a water pump 7 is fixedly connected to the top of the pump stand 8. The water inlet end of the water pump 7 is fixedly connected to a pumping pipe 12. The mouth of the pumping 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 on one side close to the pumping pipe 12, and the pumping pipe 12 passes through the pipe sleeve 13.

[0083] Reference Figure 1 、 Figures 8-11 In a preferred embodiment, the evenly distributed feeding mechanism 23 includes:

[0084] The evenly divided sliding frame 2301 has mounting rods 25 fixedly connected thereto at equal distances, one end of the mounting rods 25 being fixedly connected to the outer wall of the stirring shaft 26;

[0085] The rotating ring plate 2302 is slidably connected to the interior of the equal distribution sliding frame 2301;

[0086] The feed pipe 2303 is disposed inside a fixed hole formed on the rotating ring plate 2302;

[0087] The material guide tube 2306 is provided in the communicating hole provided below the evenly dividing sliding frame 2301 , and a material discharge hole 2305 is provided on the outer side wall of the material guide tube 2306 facing downward.

[0088] Specifically, when adding PAC, magnetic powder and PAM, they are added to the equal distribution slide frame 2301 through each feeding pipe 2303 respectively, and the stirring motor 24 is started. When the stirring motor 24 drives the stirring blade 27 to stir the liquid in the coagulation tank 1, the stirring shaft 26 synchronously drives the equal distribution slide frame 2301 to rotate, so that the PAC, magnetic powder and PAM added to the inside of the equal distribution slide frame 2301 are quickly filled into different guide pipes 2306, and they gradually slide down along the guide pipes 2306 and are discharged into the liquid in the coagulation tank 1 through each discharge hole 2305, quickly completing the uniform mixing of PAC, magnetic powder, PAM and liquid, thereby improving the flocculation efficiency.

[0089] It should be noted that after PAC, magnetic powder, and PAM fall into the guide tube 2306, the air pump 2308 is started. The air pump 2308 introduces gas into each hollow block 2310 through the connecting ring tube 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 toward the discharge hole 2305, ensuring that the PAC, magnetic powder, and PAM are continuously discharged from each discharge hole 2305 during the flow from top to bottom, further improving the uniformity of the addition of PAC, magnetic powder, and PAM.

[0090] Reference Figure 10 and Figure 11 In a preferred embodiment, the evenly distributed feeding mechanism 23 further comprises:

[0091] The mounting sleeve 2307 is mounted on the outer wall of the equalizing sliding frame 2301 and has an air pump 2308 fixedly connected thereto;

[0092] The hollow block 2310 is provided on the inner wall of the material guide tube 2306 near the equalizing slide frame 2301. The outer wall thereof facing the material discharge hole 2305 is provided with a gas punching hole 2311. The hollow block 2310 is provided with branch holes, and the branch holes are fixedly connected to the branch pipes.

[0093] The connecting ring pipe 2304 is set on multiple branch pipes, and the air delivery end of the air pump 2308 is fixedly connected to the air guide pipe 2309, and one end of the air guide pipe 2309 is inserted into the interior of the connecting ring pipe 2304.

[0094] A method for treating sewage using a magnetic coagulation sedimentation tank, using a sewage treatment system using a magnetic coagulation sedimentation tank as described above, comprising the following steps:

[0095] Step 1: PAC, magnetic powder, and PAM are added to the equal distribution slide frame 2301 through each feeding pipe 2303 respectively, and the stirring motor 24 is started. When the stirring motor 24 drives the stirring blade 27 to stir the liquid in the coagulation tank 1, the stirring shaft 26 synchronously drives the equal distribution slide frame 2301 to rotate, so that the PAC, magnetic powder, and PAM added to the equal distribution slide frame 2301 are quickly filled into different guide pipes 2306, and the air pump 2308 is started. 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 toward the discharge hole 2305, ensuring that the PAC, magnetic powder, and PAM are continuously discharged from each discharge hole 2305 during the flow from top to bottom, and discharged into the liquid in the coagulation tank 1 through each discharge hole 2305, quickly completing the uniform mixing of PAC, magnetic powder, PAM and the liquid;

[0096] Step 2: After the mixing is completed, the solid and liquid inside the coagulation tank 1 are introduced into the nozzle 4 through the delivery pump 21, and are sprayed to each sieve plate 1603 of the guide inclined plate 5 through the spray hole 17. The larger solid particles in the solid-liquid mixture are intercepted by the sieve plate 1603. At the same time, the hydraulic cylinder 2 1616 is adjusted to drive the sieve plate 1603 to deflect. During the deflection of the sieve plate 1603, it squeezes the knocking balls 1612 inside and outside the mounting frame 1601, so that the oscillation spring rod 1617 is compressed. When the hydraulic cylinder 2 1616 drives the sieve plate 1603 to reset, the oscillation spring rod 1617 continuously drives the knocking balls 1612 to knock on the sieve plate 1603, thereby accelerating the falling of the solid particles attached thereto, avoiding the accumulation of large particles of solid impurities on the sieve plate 1603 and causing the sieve holes to be blocked, thereby accelerating the passage of the liquid;

[0097] Step 3: The sewage enters the sedimentation tank body 6 and begins to settle. After a period of time, the sedimentation is completed, and the water pump 7 is started to extract the upper water body. Then, the sediment in the lower layer of the sedimentation tank body 6 is pumped into the high shear machine 10 through the lifting pump. After the shearing is completed, 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, and the operation is ended.

[0098] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A sewage treatment system containing a magnetic coagulation sedimentation tank, characterized in that: include: Coagulation tank (1); An upper mounting frame (2) is provided on the coagulation tank (1), and a stirring motor (24) is fixedly connected thereto. The output shaft of the stirring motor (24) is fixedly connected to a stirring shaft (26) via a coupling, and a stirring blade (27) is provided on the outer wall of the stirring shaft (26); An evenly distributed feeding mechanism (23) is provided on the upper mounting frame (2); Sedimentation tank body (6); Two collecting arc frames (9) are arranged on both sides of the sedimentation tank body (6); Two guide inclined plates (5) are arranged on the side wall of the sedimentation tank body (6) above the collecting arc frame (9); A diversion and screening mechanism (16) is provided on the diversion inclined plate (5); Magnetic powder separator (11); Two high shears (10) are arranged on the magnetic powder separator (11); The diversion and screening mechanism (16) comprises: The mounting frame (1601) is equidistantly arranged on the inclined surface of the guide ramp (5), and the inner walls on both sides thereof are connected to the same deflection shaft (1608) via bearings; The sieve plate (1603) is arranged outside the deflection shaft (1608), and the sieve plate (1603) is fixedly connected to a sealing belt (1609) at the bottom, and the sealing belt (1609) is arranged on a side of the installation frame (1601) near the bottom end. The sieve plate (1603) is fixedly connected to a sealing belt (1611) at the top, and one side of the sealing belt (1611) is fixedly connected to the top inner wall of the installation frame (1601); A mounting frame (1602) is provided on the top of the mounting frame (1601), and a hydraulic cylinder 1 (1604) is fixedly connected at an equal distance on one side of the mounting frame (1602) facing the mounting frame (1601); The jet arc plate (1613) is provided at the output end of the plurality of hydraulic cylinders (1604) and is located inside the mounting frame (1601); The diversion and screening mechanism (16) further comprises: Two connecting frames (1607), one is arranged on the outer wall of the installation frame (1601), and the other is arranged on the inner wall of the installation frame (1601); one side of the connecting frame (1607) located inside the installation frame (1601) is connected to the second hydraulic cylinder (1616) via a hinge, and the output end of the second hydraulic cylinder (1616) is connected to one side of the screen plate (1603) via a hinge; The storage frames (1615) are all arranged on the side of the connecting frame (1607) facing the screen plate (1603), and the interior of the storage frame (1615) is fixedly connected with oscillation spring rods (1617) at equal distances. The ends of the multiple oscillation spring rods (1617) located on the same storage frame (1615) are fixedly connected to the same integration rod (1610), and the integration rod (1610) is fixedly connected with a knocking ball (1612) at equal distances on the outer wall of the integration rod (1610) facing the screen plate (1603); A frame (1605) is arranged on the top of the mounting frame (1602); an air compressor (1606) is fixedly connected to the interior of the frame (1605); an air delivery end of the air compressor (1606) is connected to the interior of the jet arc plate (1613) via a pipeline; and jet holes (1614) are provided on the arc surface of the jet arc plate (1613) facing the screen plate (1603); The guide inclined plate (5) is fixedly connected to a partition plate (15) on the inclined surface between each two adjacent installation frames (1601), and the two partition plates (15) located in the middle are both provided with installation grooves, the interior of the installation groove is fixedly connected to a nozzle (4), and the outer wall of the nozzle (4) facing the guide inclined plate (5) is provided with a spray hole (17), the coagulation tank (1) is fixedly connected to a delivery pump (21) near the top of the nozzle (4), and the extraction end of the delivery pump (21) is fixedly connected to an extraction pipe (22), the pipe mouth of the extraction pipe (22) is located in the coagulation tank (1), the delivery end of the delivery pump (21) is fixedly connected to a delivery pipe (3), and one end of the delivery pipe (3) is inserted into the interior of the nozzle (4).

2. A sewage treatment system comprising a magnetic coagulation sedimentation tank according to claim 1, characterized in that: The guide inclined plate (5) is provided with a mounting hole below each mounting frame (1601), and a collection box (14) is fixedly connected to the inside of each mounting hole. The top of the collection box (14) is connected to a blanking plate (18) through a hinge. The inner wall of one side of the collection box (14) below the blanking plate (18) is connected to a blanking cylinder (19) at equal distances through a hinge. The output end of the blanking cylinder (19) is connected to the bottom of the blanking plate (18) through a hinge. A drainage hole (20) is provided at the bottom of the collection box (14).

3. A sewage treatment system containing a magnetic coagulation sedimentation tank according to claim 2, characterized in that: A pump frame (8) is fixedly connected to one side of the sedimentation tank body (6), and a water pump (7) is fixedly connected to the top of the pump frame (8). A water inlet end of the water pump (7) is fixedly connected to a water pumping pipe (12). The mouth of the water pumping 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 pumping pipe (12), and the water pumping pipe (12) passes through the pipe sleeve (13).

4. A sewage treatment system comprising a magnetic coagulation sedimentation tank according to claim 3, characterized in that: The equal distribution feeding mechanism (23) comprises: An evenly divided sliding frame (2301) is fixedly connected to a mounting rod (25) at equal distances, and one end of the mounting rod (25) is fixedly connected to the outer wall of the stirring shaft (26); The rotating ring plate (2302) is slidably connected to the interior of the equalizing sliding frame (2301); The feed pipe (2303) is arranged inside a fixed hole provided on the rotating ring plate (2302); The material guide tube (2306) is arranged in the communicating hole opened below the evenly dividing sliding frame (2301), and the outer side wall of the material guide tube (2306) facing downward is provided with a material discharge hole (2305).

5. A sewage treatment system comprising a magnetic coagulation sedimentation tank according to claim 4, characterized in that: The evenly distributed feeding mechanism (23) further comprises: A mounting sleeve (2307) is provided on the outer side wall of the equalizing sliding frame (2301), and an air pump (2308) is fixedly connected to the interior thereof; The hollow block (2310) is arranged on the inner side wall of the material guide tube (2306) close to the equalizing slide frame (2301), and the outer side wall thereof facing the material discharge hole (2305) is provided with a gas punching hole (2311). The hollow block (2310) is provided with a branch hole, and the inside of the branch hole is fixedly connected with a branch pipe; The connecting ring pipe (2304) is arranged on a plurality of branch pipes, and the gas delivery end of the air pump (2308) is fixedly connected to the air guide pipe (2309), and one end of the air guide pipe (2309) is inserted into the interior of the connecting ring pipe (2304).

6. A method for treating sewage using a magnetic coagulation sedimentation tank, using the sewage treatment system using a magnetic coagulation sedimentation tank according to claim 5, characterized in that: The following steps are involved: Step 1: Add PAC, magnetic powder and PAM into the equal distribution slide frame (2301) through each feeding pipe (2303) respectively, start the stirring motor (24), and when the stirring motor (24) drives the stirring blade (27) to stir the liquid in the coagulation tank (1), the stirring shaft (26) synchronously drives the equal distribution slide frame (2301) to rotate, so that the PAC, magnetic powder and PAM added to the equal distribution slide frame (2301) are quickly filled into different guide pipes (2306), and the air pump (2308) is started. (2308) Gas is introduced into each hollow block (2310) through the connecting ring tube (2304) and ejected through the gas punching hole (2311). The impact of the gas drives the PAC, magnetic powder, and PAM to move toward the discharge hole (2305), ensuring that the PAC, magnetic powder, and PAM are continuously discharged from each discharge hole (2305) during the flow from top to bottom, and discharged into the liquid in the coagulation tank (1) through each discharge hole (2305), thereby quickly completing the uniform mixing of the PAC, magnetic powder, PAM and the liquid; Step 2: After the mixing is completed, the solid and liquid in the coagulation tank (1) are introduced into the nozzle (4) through the delivery pump (21), and are sprayed to each sieve plate (1603) of the guide inclined plate (5) through the spray hole (17). The larger solid particles in the solid-liquid mixture are intercepted by the sieve plate (1603). At the same time, the hydraulic cylinder 2 (1616) is adjusted to drive the sieve plate (1603) to deflect. During the deflection process of the sieve plate (1603), it is pressed against the mounting frame (1603). 01) The knocking balls (1612) on the inner and outer sides squeeze each other, causing the oscillating spring rod (1617) to be compressed. When the hydraulic cylinder 2 (1616) drives the screen plate (1603) to reset, the oscillating spring rod (1617) continuously drives the knocking balls (1612) to knock on the screen plate (1603), accelerating the falling of solid particles attached thereto, preventing large solid impurities from accumulating on the screen plate (1603) and causing the screen holes to be blocked, thereby accelerating the passage of liquid; Step 3: The sewage enters the sedimentation tank body (6) and begins sedimentation. After a period of time, the sedimentation is completed, and the water pump (7) is started to extract the upper water body. Then, the sediment in the lower layer of the sedimentation tank body (6) is pumped into the high shear machine (10) through the lifting pump. After the shearing is completed, it is introduced into the magnetic powder separator (11). The magnetic powder separator (11) stirs the sludge at high speed to achieve 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 (11), and the operation is completed.

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