A sewage deep treatment device and method based on magnetic coagulation

Abstract

The present invention discloses a sewage deep treatment device and method based on magnetic coagulation, which relates to the technical field of water pollution control and treatment, and includes: a coagulation tank, on which stirring mechanisms are arranged at equal distances, a pump frame is fixedly connected to one side of the coagulation tank, and a delivery pump is arranged inside the pump frame; a sedimentation tank body; a magnetic powder separator; a magnetic powder discharge channel, which is arranged at a discharge hole opened near the bottom of the magnetic powder separator; a high shear machine, which is arranged between the magnetic powder separator and the sedimentation tank body; and a plurality of separation tanks, which are arranged inside the sedimentation tank body. The sewage deep treatment device and method based on magnetic coagulation disclosed by the present invention has the following features: when performing solid-liquid separation inside the sedimentation tank body, adjusting hydraulic cylinder four to drive the separation filter plate to move to the solid-liquid junction, then adjusting hydraulic cylinder one to drive the lifting frame to move to the bottom of the middle frame, so that the lower pressing plate contacts the blanking plate, and then adjusting electric telescopic rod two to drive the extrusion airbag to move out of the lifting frame.

Description

Technical Field

[0001] The present invention relates to the technical field of water pollution control and treatment, and in particular to a sewage deep treatment device and method based on magnetic coagulation. Background Art

[0002] In water pollution control and treatment, magnetic coagulation technology is a combination of coagulation technology and magnetic separation technology. It is an innovative improvement based on traditional coagulation, sedimentation and filtration processes. It uses recyclable modified magnetic powder to enhance the flocculation reaction and achieve an efficient sewage treatment process with high-speed sedimentation.

[0003] The treatment process of magnetic coagulation is as follows: sewage enters the magnetic coagulation system, and PAC, magnetic powder and PAM are added in the quick mixing tank, loading tank and flocculation tank in sequence. Mechanical stirring and flocculation are used to combine the magnetic powder with non-magnetic suspended matter in the water to form micro-magnetic flocs. The micro-magnetic flocs flow into the sedimentation tank with the water flow to complete the solid-liquid separation. The sludge containing magnetic powder is transported to the high shear machine through the magnetic powder lifting pump to achieve the separation of magnetic powder and sludge, and then enters the magnetic separator for magnetic powder recovery. The recovered magnetic powder is returned to the loading tank for recycling.

[0004] During use, the existing sewage deep treatment device based on magnetic coagulation introduces the stirred sewage into the sedimentation tank. After high-speed sedimentation, the sediment still contains some water. This part of the water cannot be carried away with the extraction of the upper water, resulting in the part of the water mixed in the sediment being unable to be extracted, which will increase water loss and reduce the use value of the treatment device. Summary of the Invention

[0005] The present invention discloses a sewage deep treatment device based on magnetic coagulation, which aims to solve the technical problem that in the existing sewage deep treatment device based on magnetic coagulation, after the stirred sewage is introduced into the sedimentation tank during use, the sediment after high-speed sedimentation still contains part of the water body, and this part of the water body cannot be taken away with the extraction of the upper water body, so that part of the water body mixed in the sediment cannot be extracted, which will increase the water loss.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A sewage deep treatment device based on magnetic coagulation, comprising:

[0008] A coagulation tank is provided with stirring mechanisms at equal distances. A pump frame is fixedly connected to one side of the coagulation tank, and a delivery pump is provided inside the pump frame.

[0009] Sedimentation tank body;

[0010] Magnetic powder separator;

[0011] The magnetic powder discharge channel is provided at the discharge hole opened near the bottom end of the magnetic powder separator;

[0012] High shear machine, installed between the magnetic powder separator and the sedimentation tank body;

[0013] A plurality of partition tanks are arranged inside the sedimentation tank body, and a filling plate is fixedly connected to one side of each partition tank;

[0014] Two pump plates are arranged on both sides of the sedimentation tank body;

[0015] The inlet pipe is arranged in the inlet hole opened on the sedimentation tank body. Each partition tank has two through holes. The inlet pipe is connected to a one-way valve through a flange near the outer wall of the sedimentation tank body. The one-way valve points from the inlet pipe to the interior of the sedimentation tank body.

[0016] A high-efficiency solid-liquid separation mechanism is provided inside the separation tank. The high-efficiency solid-liquid separation mechanism is used to achieve high-efficiency separation of water and sediment inside the sedimentation tank body, thereby improving the recovery rate of water in the sludge and reducing water loss;

[0017] The sedimentation collection mechanism is arranged inside the sedimentation tank body, and the sedimentation collection mechanism is located below each separation tank. The sedimentation collection mechanism is used to fully collect the sediment, thereby preventing it from accumulating in the sedimentation tank body and causing pollution to the sedimentation tank body.

[0018] In a preferred embodiment, the solid-liquid efficient separation mechanism comprises:

[0019] Two separation filter plates, both sides of the inner wall of the separation tank are provided with lifting grooves, the interior of each lifting groove is slidably connected to a lifting slider, and the separation filter plates are fixedly connected to the two lifting sliders on the same side;

[0020] An intermediate frame is provided on opposite sides of the two separation filter plates;

[0021] The lifting frame is inserted into the through-holes provided on the middle frame;

[0022] Two upper lifting frames are arranged at the two ends of the top of the middle frame. The two upper lifting frames are fixedly connected with a hydraulic cylinder 1, and the output end of the hydraulic cylinder 1 is fixedly connected to the top of the lifting frame.

[0023] In a preferred embodiment, the solid-liquid efficient separation mechanism further comprises:

[0024] Two extrusion airbags, both sides of the lifting frame are provided with mounting grooves, and two electric telescopic rods are fixedly connected at equal distances in the two mounting grooves, and the output ends of multiple electric telescopic rods on one side are fixedly connected to the same pushing hard plate, and the extrusion airbags are arranged on the pushing hard plate;

[0025] A sealing belt is provided between the extrusion airbag and the lifting frame;

[0026] Multiple air pumps are fixedly connected to the top of the lifting frame at equal distances;

[0027] Multiple connecting tubes are provided in the connecting holes opened on opposite sides of the two extrusion air bags. The air delivery end of the air pump is fixedly connected to the air guide tube, and one end of the air guide tube is inserted into the interior of the corresponding connecting tube;

[0028] The lower pressing piece is arranged at the bottom of the lifting frame.

[0029] In a preferred solution, the inner walls of the mounting grooves at the upper and lower ends of the pushing hard plate are connected to adjusting plates via hinges, and the mounting grooves are connected to electric telescopic rods one by hinges near each adjusting plate, the output end of the electric telescopic rod one is connected to one side of the adjusting plate via a hinge, and an irregular extrusion rod is fixedly connected at equal distances to the side of the adjusting plate facing the extrusion airbag.

[0030] In a preferred embodiment, the sediment collection mechanism comprises:

[0031] A deflection shaft, both ends of which are connected to shaft grooves provided on the inner side wall of the sedimentation tank body through bearings;

[0032] A blanking plate, arranged on the outer side wall of the deflection shaft;

[0033] A plurality of hydraulic cylinders 2 are connected to the bottom inner wall of the sedimentation tank body at equal distances through hinges, and the output ends of the hydraulic cylinders 2 are connected to the bottom of the blanking plate through hinges.

[0034] In a preferred embodiment, the sediment collection mechanism further comprises:

[0035] A plurality of base frames are equidistantly arranged at the bottom of the blanking plate, and the blanking plate is provided with a fitting hole above each base frame;

[0036] The flip plate is hinged to the inner wall of one side of the fitting hole;

[0037] A plurality of deflection spring rods are arranged at the bottom of the flip plate. The bottoms of the plurality of deflection spring rods are fixedly connected to the same integration rod, and the integration rod is fixedly connected to the arc surface of the base frame.

[0038] In a preferred solution, three hydraulic cylinders are fixedly connected to the base frame at equal distances, and the output ends of multiple hydraulic cylinders are fixedly connected to the same mounting rod, the top of the mounting rod is fixedly connected to a blast pipe, the blast pipe has blast holes facing obliquely downward, a matching pressure plate is fixedly connected to the upward curved surface of the blast pipe, an air compressor is fixedly connected to the frame, the air delivery end of the air compressor is fixedly connected to an air delivery pipe, and one end of the air delivery pipe is inserted into the interior of the blast pipe.

[0039] In a preferred solution, two protective partitions are symmetrically distributed on the bottom inner wall of the sedimentation tank body, and a sediment discharge hole is opened on the sedimentation tank body between the two protective partitions, and the sediment discharge hole is located between the two blanking plates. The separation tank is fixedly connected to a mounting block above each lifting slot, and the bottom of the mounting block is fixedly connected to a hydraulic cylinder four, and the output end of the hydraulic cylinder four is fixedly connected to the top of the corresponding lifting slider, and the bottom of each lifting slider is fixedly connected to a dredging rod.

[0040] In a preferred solution, water pumps are fixedly connected to the tops of the two pump plates at equal distances, and a pipe rack is fixedly connected to each upper lifting frame, a main pipe is fixedly connected to the pipe rack, and two symmetrically distributed branch holes are opened on the main pipe facing downward, and water suction nozzles are fixedly connected to the inside of the two branch holes, and the water suction nozzles are located above the separation filter plate. The water pumping end of the water pump is fixedly connected to a water suction pipe, and one end of the water suction pipe is inserted into the inside of the main pipe.

[0041] A method for deep sewage treatment based on magnetic coagulation, using a sewage deep treatment device based on magnetic coagulation as described above, comprising the following steps;

[0042] Step 1: PAC, magnetic powder, and PAM are added to the coagulation tank in sequence, and a stirring mechanism is used to stir, mix, and flocculate, so that the magnetic powder and non-magnetic suspended matter in the water are combined to form micro-magnetic flocs. The mixture of micro-magnetic flocs and water is introduced into the sedimentation tank body through a delivery pump, and it flows through the through-holes to each separation tank and begins to settle;

[0043] Step 2: After the sedimentation is completed, the water pump is started, and the water pump begins to extract the water above the separation filter plate through the water pumping nozzle. After the upper water is extracted, the hydraulic cylinder 4 is adjusted to drive the separation filter plate to move to the solid-liquid junction, and then the hydraulic cylinder 1 is adjusted to drive the lifting frame to move to the bottom of the middle frame so that the lower pressing plate contacts the blanking plate, and then the electric telescopic rod 2 is adjusted to drive the extrusion airbag to move out of the lifting frame, and the air pump fills the extrusion airbag with gas. As the extrusion airbag continues to expand, the extrusion airbag pushes and squeezes the sediment more and more, and the water contained in the sediment is continuously squeezed to the upper layer of the sediment, and continues to be extracted;

[0044] Step 3: After the upper water body is extracted, adjust the hydraulic cylinder 2 to drive the unloading plate to deflect downward, then the unloading plate will gradually separate from the bottom of each separation pool, and the sediment below the separation pool will gradually fall along the inclined unloading plate to complete the first unloading. After the first unloading is completed, adjust the hydraulic cylinder 3 from top to bottom at equal time intervals to drive the matching pressure plate to rise, then the flip plate will deflect upward under the action of the deflection spring rod, and gradually lift up from the top of the unloading plate, further accelerating the sediment above the unloading plate to slide down, and at the same time, start the air The air compressor introduces compressed gas into the blast pipe and sprays it through the downward-slanting blast holes, thereby blowing the sediment on the flip plate and the discharge plate below it to complete the second discharge. The sediment all falls under the sedimentation tank body, and the sludge is transported to the high shear machine for shearing. After shearing, it is introduced into the magnetic powder separator, which 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, ending the operation.

[0045] From the above, it can be seen that the sewage deep treatment device based on magnetic coagulation provided by the present invention has the function of adjusting the hydraulic cylinder four to drive the separation filter plate to move to the solid-liquid junction when performing solid-liquid separation inside the sedimentation tank body, and then adjusting the hydraulic cylinder one to drive the lifting frame to move to the bottom of the middle frame so that the lower pressure plate contacts the unloading plate, and then adjusting the electric telescopic rod two to drive the extrusion airbag to move out of the lifting frame, and the air pump fills the gas into the extrusion airbag. As the extrusion airbag continues to expand, the pushing and squeezing force of the extrusion airbag on the sediment becomes greater and greater, and the water contained in the sediment is continuously squeezed to the upper layer of the sediment, thereby reducing the water content in the sediment and improving the recovery rate of the water body. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is an overall flow chart of a sewage deep treatment device based on magnetic coagulation proposed by the present invention.

[0047] Figure 2 This is a schematic diagram of the sedimentation tank body structure of a sewage deep treatment device based on magnetic coagulation proposed in the present invention.

[0048] Figure 3 This is a reverse diagram of the internal structure of the sedimentation tank body of a sewage deep treatment device based on magnetic coagulation proposed by the present invention.

[0049] Figure 4 This is an enlarged view of the separation tank structure of a sewage deep treatment device based on magnetic coagulation proposed by the present invention.

[0050] Figure 5 This is a schematic diagram of the internal structure of the separation tank of a sewage deep treatment device based on magnetic coagulation proposed in the present invention.

[0051] Figure 6 This is a schematic diagram of the efficient solid-liquid separation mechanism of a sewage deep treatment device based on magnetic coagulation proposed by the present invention.

[0052] Figure 7 This is a cross-sectional view of the intermediate frame and lifting frame structure of a sewage deep treatment device based on magnetic coagulation proposed by the present invention.

[0053] Figure 8 for Figure 6 Schematic diagram of the planar structure.

[0054] Figure 9 This is a schematic diagram of the sedimentation and collection mechanism of a sewage deep treatment device based on magnetic coagulation proposed in the present invention.

[0055] Figure 10 This is a cross-sectional view of the base frame, blast pipe, flip plate and matching pressure plate structure of a sewage deep treatment device based on magnetic coagulation proposed by the present invention.

[0056] Figure 11 This is a disassembled diagram of the matching pressure plate and blast pipe structure of a sewage deep treatment device based on magnetic coagulation proposed by the present invention.

[0057] Figure 12 for Figure 10 Schematic diagram of the planar structure.

[0058] In the figure: 1. Sedimentation tank body; 2. Solid-liquid high-efficiency separation mechanism; 201. Separation filter plate; 202. Lifting frame; 203. Lifting frame; 204. Hydraulic cylinder 1; 205. Extrusion airbag; 206. Air pump; 207. Lower pressure plate; 208. Intermediate frame; 209. Sealing tape; 210. Adjustment plate; 211. Mounting groove; 212. Air guide tube; 213. Electric telescopic rod 1; 214. Connecting pipe; 215. Electric telescopic rod 2; 216. Irregular extrusion rod; 217. Pushing hard plate; 3. Separation tank; 4. Suction pipe; 5. Main pipe; 6. Inlet pipe; 7. One-way valve; 8. Suction pump; 9. Sediment discharge hole; 10. Pump plate; 11. Sediment collection mechanism; 1101. Unloading plate; 1102 , deflection shaft; 1103, base frame; 1104, hydraulic cylinder two; 1105, blast pipe; 1106, flip plate; 1107, mounting rod; 1108, hydraulic cylinder three; 1109, air compressor; 1110, matching pressure plate; 1111, blast hole; 1112, deflection spring rod; 1113, air pipe; 1114, integration rod; 12, filling plate; 13, protective partition; 14, lifting groove; 15, hydraulic cylinder four; 16, mounting block; 17, through hole; 18, dredging rod; 19, water nozzle; 20, lifting slider; 21, pipe rack; 22, coagulation tank; 23, stirring mechanism; 24, pump rack; 25, delivery pump; 26, magnetic powder separator; 27, high shear machine; 28, magnetic powder discharge channel. DETAILED DESCRIPTION

[0059] 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.

[0060] The present invention discloses a sewage deep treatment device based on magnetic coagulation, which is mainly applied to the existing sewage deep treatment device based on magnetic coagulation. During use, after the stirred sewage is introduced into the sedimentation tank, the sediment after high-speed sedimentation still contains part of the water. This part of the water cannot be taken away with the extraction of the upper water, so that part of the water mixed in the sediment cannot be extracted, which will increase the scenario of water loss.

[0061] Reference Figures 1-12 , a sewage deep treatment device based on magnetic coagulation, comprising:

[0062] A coagulation tank 22 is provided with stirring mechanisms 23 at equal distances. A pump frame 24 is fixedly connected to one side of the coagulation tank 22, and a delivery pump 25 is provided inside the pump frame 24.

[0063] Sedimentation tank body 1;

[0064] Magnetic powder separator 26;

[0065] The magnetic powder discharge channel 28 is provided at a discharge hole opened near the bottom end of the magnetic powder separator 26;

[0066] The high shear machine 27 is provided between the magnetic powder separator 26 and the sedimentation tank body 1;

[0067] Multiple partition tanks 3 are arranged inside the sedimentation tank body 1, and a filling plate 12 is fixedly connected to one side of each partition tank 3;

[0068] Specifically, the water and sediment inside the sedimentation tank body 1 are divided into zones by the separation tank 3, thereby preventing the sediment from turning over due to the rapid flow of water inside the sediment body during solid-liquid separation.

[0069] Two pump plates 10 are provided on both sides of the sedimentation tank body 1;

[0070] The inlet pipe 6 is arranged in the inlet hole opened on the sedimentation tank body 1. Each partition tank 3 has two through holes 17. The inlet pipe 6 is connected to a one-way valve 7 through a flange near the outer wall of the sedimentation tank body 1. The one-way valve 7 points from the inlet pipe 6 to the interior of the sedimentation tank body 1.

[0071] The solid-liquid efficient separation mechanism 2 is arranged inside the separation tank 3 and is used to achieve efficient separation of water and sediment inside the sedimentation tank body 1, thereby improving the recovery rate of water in the sludge and reducing water loss;

[0072] The sedimentation collection mechanism 11 is arranged inside the sedimentation tank body 1 and is located below each partition tank 3. The sedimentation collection mechanism 11 is used to fully collect the sediment, thereby preventing it from accumulating in the sedimentation tank body 1 and causing pollution to the sedimentation tank body 1.

[0073] Reference Figure 2-Figure 8 In a preferred embodiment, the solid-liquid efficient separation mechanism 2 includes:

[0074] Two separation filter plates 201, both sides of the inner wall of the separation tank 3 are provided with lifting grooves 14, the interior of each lifting groove 14 is slidably connected to a lifting slider 20, and the separation filter plates 201 are fixedly connected to the two lifting sliders 20 on the same side;

[0075] The intermediate frame 208 is provided on the opposite side of the two separation filter plates 201;

[0076] The lifting frame 203 is inserted into the through hole provided on the intermediate frame 208;

[0077] The two upper lifting frames 202 are arranged at the top ends of the middle frame 208. The two upper lifting frames 202 are fixedly connected to a hydraulic cylinder 1 204, and the output end of the hydraulic cylinder 1 204 is fixedly connected to the top of the lifting frame 203.

[0078] In a specific application scenario, when performing solid-liquid separation inside the sedimentation tank body 1, the hydraulic cylinder 4 15 is adjusted to drive the separation filter plate 201 to move to the solid-liquid junction, and then the hydraulic cylinder 1 204 is adjusted to drive the lifting frame 203 to move to the bottom of the middle frame 208, so that the lower pressure plate 207 contacts the blanking plate 1101, and then the electric telescopic rod 215 is adjusted to drive the extrusion airbag 205 to move out of the lifting frame 203, and the air pump 206 fills the extrusion airbag 205 with gas. As the extrusion airbag 205 continues to expand, the pushing and squeezing force of the extrusion airbag 205 on the sediment becomes greater and greater, and the water contained in the sediment is continuously squeezed to the upper layer of the sediment, thereby reducing the water content in the sediment and improving the water recovery rate.

[0079] Specifically, in the separation pool 3, an enclosed space is formed by two separation filter plates 201, a lifting frame 203, an intermediate frame 208 and two extrusion air bags 205. The continuous compression of the extrusion air bags 205 causes the space to gradually decrease, thereby gradually increasing the mutual pressure between the sediments, which can quickly squeeze out the water contained in the sediments, thereby improving the recovery rate of the water body.

[0080] It should be noted that, in the process of gradual expansion of the extrusion airbag 205, the electric telescopic rod 213 at the upper and lower ends is reciprocally adjusted to drive the irregular extrusion rod 216 on the adjustment plate 210 to squeeze the rear of the extrusion airbag 205, thereby causing the gas inside the extrusion airbag 205 to move toward the contact point with the sediment. The contact point between the extrusion airbag 205 and the sediment is subjected to enhanced pressure at different positions, thereby realizing secondary extrusion of the sediment, and the extrusion method is local extrusion, which further improves the discharge rate of water contained in the sediment.

[0081] Reference Figure 6-Figure 8 In a preferred embodiment, the solid-liquid efficient separation mechanism 2 further comprises:

[0082] Two extrusion airbags 205 are provided with mounting slots 211 on both sides of the lifting frame 203. Two electric telescopic rods 215 are fixedly connected to each other at equal distances in the two mounting slots 211. The output ends of the multiple electric telescopic rods 215 on one side are fixedly connected to the same pushing hard plate 217. The extrusion airbags 205 are provided on the pushing hard plate 217.

[0083] The sealing belt 209 is provided between the extrusion airbag 205 and the lifting frame 203;

[0084] A plurality of air pumps 206 are fixedly connected to the top of the lifting frame 203 at equal distances;

[0085] Multiple connecting tubes 214 are provided in the connecting holes 17 opened on opposite sides of the two extrusion air bags 205. The air delivery end of the air pump 206 is fixedly connected to the air guide tube 212, and one end of the air guide tube 212 is inserted into the interior of the corresponding connecting tube 214;

[0086] The lower pressing plate 207 is disposed at the bottom of the lifting frame 203 .

[0087] According to a further solution of the present invention, the mounting groove 211 is located on the inner wall at the upper and lower ends of the pushing hard plate 217, and is connected to the adjusting piece 210 through a hinge, and the mounting groove 211 is connected to the electric telescopic rod 213 near each adjusting piece 210 through a hinge, and the output end of the electric telescopic rod 213 is connected to one side of the adjusting piece 210 through a hinge, and the side of the adjusting piece 210 facing the extrusion airbag 205 is fixedly connected with an irregular extrusion rod 216 at an equal distance.

[0088] Reference Figure 2 、 Figure 3 、 Figures 9-12 In a preferred embodiment, the sediment collection mechanism 11 includes:

[0089] Deflection shaft 1102, both ends of which are connected to shaft grooves provided on the inner wall of the sedimentation tank body 1 through bearings;

[0090] The blanking plate 1101 is provided on the outer side wall of the deflection shaft 1102;

[0091] Multiple hydraulic cylinders 1104 are equidistantly connected to the bottom inner wall of the sedimentation tank body 1 through hinges, and the output end of the hydraulic cylinder 1104 is connected to the bottom of the blanking plate 1101 through a hinge.

[0092] Reference Figures 8-11 In a preferred embodiment, the sediment collection mechanism 11 further comprises:

[0093] Multiple base frames 1103 are equidistantly arranged at the bottom of the blanking plate 1101. The blanking plate 1101 is provided with a fitting hole above each base frame 1103.

[0094] The flip plate 1106 is hingedly connected to the inner wall of one side of the fitting hole;

[0095] A plurality of deflection spring rods 1112 are disposed at the bottom of the flip plate 1106 . The bottoms of the plurality of deflection spring rods 1112 are fixedly connected to a same integration rod 1114 , and the integration rod 1114 is fixedly connected to the arc surface of the base frame 1103 .

[0096] According to a further solution of the present invention, hydraulic cylinder three 1108 are fixedly connected to the base frame 1103 at equal distances, and the output ends of the multiple hydraulic cylinder three 1108 are fixedly connected to the same mounting rod 1107, the top of the mounting rod 1107 is fixedly connected to a blast pipe 1105, the blast pipe 1105 is provided with a blast hole 1111 facing obliquely downward, a matching pressure plate 1110 is fixedly connected to the upward curved surface of the blast pipe 1105, an air compressor 1109 is fixedly connected to the frame, the air delivery end of the air compressor 1109 is fixedly connected to an air delivery pipe 1113, and one end of the air delivery pipe 1113 is inserted into the interior of the blast pipe 1105.

[0097] Specifically, after the water above the sedimentation tank body 1 is pumped out, the hydraulic cylinder 2 1104 is adjusted to drive the unloading plate 1101 to deflect downward, and the unloading plate 1101 gradually separates from the bottom of each separation tank 3, and the sediment below the separation tank 3 gradually falls along the inclined unloading plate 1101, completing the first level of unloading.

[0098] It should be noted that after a period of unloading, from top to bottom, the hydraulic cylinder 3 1108 is adjusted at equal time intervals to drive the matching pressure plate 1110 to rise, and the flip plate 1106 is deflected upward under the action of the deflection spring rod 1112, and gradually lifted up from above the unloading plate 1101, further accelerating the sediment above the unloading plate 1101 to slide down. At the same time, the air compressor 1109 is started, and the air compressor 1109 introduces compressed gas into the blast pipe 1105, and sprays it through the downward-slanted blast hole 1111, thereby blowing the sediment on the flip plate 1106 and the unloading plate 1101 below it, completing the second unloading. The second unloading is from top to bottom, which improves the thoroughness of the sediment discharge on the unloading plate 1101, and avoids the accumulation of sediment causing the loss of magnetic powder and the pollution of the sedimentation tank body 1.

[0099] Reference Figure 2 and Figure 3 According to a further solution of the present invention, two protective partitions 13 are symmetrically distributed on the inner wall of the bottom of the sedimentation tank body 1, and a sediment discharge hole 9 is opened between the two protective partitions 13 in the sedimentation tank body 1, and the sediment discharge hole 9 is located between the two blanking plates 1101. The separation pool 3 is fixedly connected with a mounting block 16 above each lifting groove 14, and a hydraulic cylinder four 15 is fixedly connected to the bottom of the mounting block 16. The output end of the hydraulic cylinder four 15 is fixedly connected to the top of the corresponding lifting slider 20, and the bottom of each lifting slider 20 is fixedly connected with a dredging rod 18.

[0100] Specifically, the dredging rod 18 is used to disperse the sediment in the lifting groove 14 during the lifting process of the lifting slider 20, so as to prevent the lifting slider 20 from being unable to be lifted and lowered smoothly due to the accumulation of sediment.

[0101] Reference Figure 2 、 Figure 3 and Figure 5 According to a further solution of the present invention, water pumps 8 are fixedly connected to the tops of the two pump plates 10 at equal distances, and a pipe rack 21 is fixedly connected to each upper lifting frame 202, and a main pipe 5 is fixedly connected to the pipe rack 21. The main pipe 5 has two symmetrically distributed branch holes facing downward, and the inside of the two branch holes is fixedly connected to a water pump nozzle 19, which is located above the separation filter plate 201. The water pumping end of the water pump 8 is fixedly connected to a water pump pipe 4, and one end of the water pump pipe 4 is inserted into the inside of the main pipe 5.

[0102] A method for deep sewage treatment based on magnetic coagulation, using a sewage deep treatment device based on magnetic coagulation as described above, comprising the following steps;

[0103] Step 1: PAC, magnetic powder, and PAM are added to the coagulation tank in sequence, and a stirring mechanism 23 is used to stir, mix, and flocculate, so that the magnetic powder and non-magnetic suspended matter in the water are combined to form micro-magnetic flocs. The mixture of micro-magnetic flocs and water is introduced into the sedimentation tank body 1 through the delivery pump 25, and flows through the through-hole 17 to each separation tank 3, and begins to settle;

[0104] Step 2: After the sedimentation is completed, the water pump 8 is started, and the water pump 8 begins to extract the water above the separation filter plate 201 through the water pumping nozzle 19. After the upper water is extracted, the hydraulic cylinder 4 15 is adjusted to drive the separation filter plate 201 to move to the solid-liquid junction, and then the hydraulic cylinder 1 204 is adjusted to drive the lifting frame 203 to move to the bottom of the middle frame 208, so that the lower pressing piece 207 contacts the blanking plate 1101, and then the electric telescopic rod 215 is adjusted to drive the extrusion airbag 205 to move out of the lifting frame 203, and the air pump 206 fills the interior of the extrusion airbag 205 with gas. As the extrusion airbag 205 continues to expand, the extrusion airbag 205 pushes the extrusion force on the sediment more and more, and the water contained in the sediment is continuously squeezed to the upper layer of the sediment, and continues to be extracted;

[0105] Step 3: After the upper layer of water is extracted, adjust the hydraulic cylinder 2 1104 to drive the blanking plate 1101 to deflect downward, then the blanking plate 1101 will gradually separate from the bottom of each separation pool 3, and the sediment below the separation pool 3 will gradually fall along the inclined blanking plate 1101 to complete the first batch of blanking. After one batch of blanking is completed, from top to bottom, adjust the hydraulic cylinder 3 1108 at equal time intervals to drive the matching pressure plate 1110 to rise, then the flip plate 1106 will deflect upward under the action of the deflection spring rod 1112, and gradually lift up from the top of the blanking plate 1101, further accelerating the sediment above the blanking plate 1101 to slide down, and at the same time , start the air compressor 1109, the air compressor 1109 introduces compressed gas into the blast pipe 1105, and sprays it through the downward-slanting blast hole 1111, thereby blowing the sediment on the flip plate 1106 and the discharge plate 1101 below it, completing the second level of discharge, and the sediment all falls under the sedimentation tank body 1. The sludge is transported to the high shear machine 27 for shearing. After the shearing is completed, it is introduced into the magnetic powder separator 26, and the magnetic powder separator 26 stirs the sludge at high speed to achieve separation of magnetic powder and sludge. The separated magnetic powder is discharged from the magnetic powder discharge channel 28, and the sludge is discharged from the sludge outlet at the bottom of the magnetic powder separator 26, and the operation is ended.

[0106] 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 deep treatment device based on magnetic coagulation, characterized in that: include: A coagulation tank is provided with stirring mechanisms at equal distances. A pump frame is fixedly connected to one side of the coagulation tank, and a delivery pump is provided inside the pump frame. Sedimentation tank body; Magnetic powder separator; The magnetic powder discharge channel is provided at the discharge hole opened near the bottom end of the magnetic powder separator; High shear machine, installed between the magnetic powder separator and the sedimentation tank body; A plurality of partition tanks are arranged inside the sedimentation tank body, and a filling plate is fixedly connected to one side of each partition tank; Two pump plates are arranged on both sides of the sedimentation tank body; The inlet pipe is arranged in the inlet hole opened on the sedimentation tank body. Each partition tank has two through holes. The inlet pipe is connected to a one-way valve through a flange near the outer wall of the sedimentation tank body. The one-way valve points from the inlet pipe to the interior of the sedimentation tank body. A high-efficiency solid-liquid separation mechanism is provided inside the separation tank, and is used to achieve high-efficiency separation of water and sediment inside the sedimentation tank body; A sedimentation collection mechanism is provided inside the sedimentation tank body and is located below each partition tank, and is used to fully collect sediment; The solid-liquid efficient separation mechanism comprises: Two separation filter plates, both sides of the inner wall of the separation tank are provided with lifting grooves, the interior of each lifting groove is slidably connected to a lifting slider, and the separation filter plates are fixedly connected to the two lifting sliders on the same side; An intermediate frame is provided on opposite sides of the two separation filter plates; The lifting frame is inserted into the through-holes provided on the middle frame; Two upper lifting frames are provided at both ends of the top of the middle frame, and the two upper lifting frames are fixedly connected to a hydraulic cylinder 1, and the output end of the hydraulic cylinder 1 is fixedly connected to the top of the lifting frame; The solid-liquid efficient separation mechanism also includes: Two extrusion airbags, both sides of the lifting frame are provided with mounting grooves, and two electric telescopic rods are fixedly connected at equal distances in the two mounting grooves, and the output ends of multiple electric telescopic rods on one side are fixedly connected to the same pushing hard plate, and the extrusion airbags are arranged on the pushing hard plate; A sealing belt is provided between the extrusion airbag and the lifting frame; Multiple air pumps are fixedly connected to the top of the lifting frame at equal distances; Multiple connecting tubes are provided in the connecting holes opened on opposite sides of the two extrusion air bags. The air delivery end of the air pump is fixedly connected to the air guide tube, and one end of the air guide tube is inserted into the interior of the corresponding connecting tube; A lower pressing plate is provided at the bottom of the lifting frame; The inner walls of the mounting grooves at the upper and lower ends of the pushing hard plate are connected to adjustment plates via hinges, and the mounting grooves near each adjustment plate are connected to an electric telescopic rod via a hinge, the output end of the electric telescopic rod is connected to one side of the adjustment plate via a hinge, and an irregular extrusion rod is fixedly connected to the side of the adjustment plate facing the extrusion airbag at equal distances; The tops of the two pump plates are fixedly connected with water pumps at equal distances, and each upper lifting frame is fixedly connected with a pipe rack, and the pipe rack is fixedly connected to a main pipe. The main pipe has two symmetrically distributed branch holes facing downward, and the inside of the two branch holes is fixedly connected with a water suction nozzle, which is located above the separation filter plate. The water suction end of the water pump is fixedly connected with a water suction pipe, and one end of the water suction pipe is inserted into the inside of the main pipe.

2. A sewage deep treatment device based on magnetic coagulation according to claim 1, characterized in that: The sediment collection mechanism comprises: A deflection shaft, both ends of which are connected to shaft grooves provided on the inner side wall of the sedimentation tank body through bearings; A blanking plate, arranged on the outer side wall of the deflection shaft; A plurality of hydraulic cylinders 2 are connected to the bottom inner wall of the sedimentation tank body at equal distances through hinges, and the output ends of the hydraulic cylinders 2 are connected to the bottom of the blanking plate through hinges.

3. A sewage deep treatment device based on magnetic coagulation according to claim 2, characterized in that: The sediment collection mechanism also includes: A plurality of base frames are equidistantly arranged at the bottom of the blanking plate, and the blanking plate is provided with a fitting hole above each base frame; The flip plate is hinged to the inner wall of one side of the fitting hole; A plurality of deflection spring rods are arranged at the bottom of the flip plate. The bottoms of the plurality of deflection spring rods are fixedly connected to the same integration rod, and the integration rod is fixedly connected to the arc surface of the base frame.

4. A sewage deep treatment device based on magnetic coagulation according to claim 3, characterized in that: Hydraulic cylinders three are fixedly connected to the base frame at equal distances, and the output ends of multiple hydraulic cylinders three are fixedly connected to the same mounting rod, a blast pipe is fixedly connected to the top of the mounting rod, a blast pipe has blast holes facing obliquely downward, a matching pressure plate is fixedly connected to the upward curved surface of the blast pipe, an air compressor is fixedly connected to the frame, an air delivery end of the air compressor is fixedly connected to an air delivery pipe, and one end of the air delivery pipe is inserted into the interior of the blast pipe.

5. A sewage deep treatment device based on magnetic coagulation according to claim 4, characterized in that: Two protective partitions are symmetrically distributed on the bottom inner wall of the sedimentation tank body, and a sediment discharge hole is opened on the sedimentation tank body between the two protective partitions. The sediment discharge hole is located between the two blanking plates. The separation tank is fixedly connected to a mounting block above each lifting slot, and a hydraulic cylinder four is fixedly connected to the bottom of the mounting block. The output end of the hydraulic cylinder four is fixedly connected to the top of the corresponding lifting slider, and a dredging rod is fixedly connected to the bottom of each lifting slider.

6. A method for advanced sewage treatment based on magnetic coagulation, using the device for advanced sewage treatment based on magnetic coagulation according to claim 5, characterized in that: The following steps are involved: Step 1: PAC, magnetic powder, and PAM are added to the coagulation tank in sequence, and a stirring mechanism is used to stir, mix, and flocculate, so that the magnetic powder and non-magnetic suspended matter in the water are combined to form micro-magnetic flocs. The mixture of micro-magnetic flocs and water is introduced into the sedimentation tank body through a delivery pump, and it flows through the through-holes to each separation tank and begins to settle; Step 2: After the sedimentation is completed, the water pump is started, and the water pump begins to extract the water above the separation filter plate through the water pumping nozzle. After the upper water is extracted, the hydraulic cylinder 4 is adjusted to drive the separation filter plate to move to the solid-liquid junction, and then the hydraulic cylinder 1 is adjusted to drive the lifting frame to move to the bottom of the middle frame so that the lower pressing plate contacts the blanking plate, and then the electric telescopic rod 2 is adjusted to drive the extrusion airbag to move out of the lifting frame, and the air pump fills the extrusion airbag with gas. As the extrusion airbag continues to expand, the extrusion airbag pushes and squeezes the sediment more and more, and the water contained in the sediment is continuously squeezed to the upper layer of the sediment, and continues to be extracted; Step 3: After the upper water body is extracted, adjust the hydraulic cylinder 2 to drive the unloading plate to deflect downward, then the unloading plate will gradually separate from the bottom of each separation pool, and the sediment below the separation pool will gradually fall along the inclined unloading plate to complete the first unloading. After the first unloading is completed, adjust the hydraulic cylinder 3 from top to bottom at equal time intervals to drive the matching pressure plate to rise, then the flip plate will deflect upward under the action of the deflection spring rod, and gradually lift up from the top of the unloading plate, further accelerating the sediment above the unloading plate to slide down, and at the same time, start the air The air compressor introduces compressed gas into the blast pipe and sprays it through the downward-slanting blast holes, thereby blowing the sediment on the flip plate and the discharge plate below it to complete the second discharge. The sediment all falls under the sedimentation tank body, and the sludge is transported to the high shear machine for shearing. After shearing, it is introduced into the magnetic powder separator, which 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, ending the operation.

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