Magnetic flocculation precipitation equipment

Abstract

The utility model discloses magnetic flocculation sedimentation equipment which comprises a sedimentation tank and is characterized in that the sedimentation tank comprises an overflow cavity and a sedimentation cavity which are communicated with each other, the overflow cavity is arranged above the sedimentation cavity, and the bottom of the sedimentation cavity is of an upper-round and lower-round structure with a large upper part and a small lower part; an inclined pipe mechanism is arranged in the overflow cavity, and a plurality of filler cavities penetrating through the top and the bottom of the inclined pipe mechanism are formed in the inclined pipe mechanism; a sewage outlet is formed in the bottom of the sedimentation cavity, a sludge scraping mechanism is arranged in the sedimentation cavity, a driving mechanism is arranged at the top of the sedimentation tank, and the driving mechanism drives the sludge scraping mechanism to rotate; an access hole is further formed in the side wall of the lower part of the sedimentation tank, the access hole is communicated with the sedimentation cavity, and a sealing element for sealing the access hole is detachably mounted on the access hole. According to the utility model, the maintenance convenience is improved, and the sedimentation and pollution discharge efficiency is also ensured.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, in particular to a magnetic flocculation precipitation device. Background Art

[0002] Supermagnetic sewage treatment technology is one of the sewage treatment methods. It is to add agents and magnetic seeds to the sewage to make the suspended matter in the sewage flocculate, and then use the supermagnetic separator to separate the flocculate from the sewage, so as to achieve the water purification effect. In the prior art, there are two main ways of supermagnetic separation. The first is that the suspended matter flocculates directly into the supermagnetic separator, and then the magnetic seeds and the suspended matter are separated by a large magnetic disk. In this structure, the disk size is large and the cost is relatively high. For example, the applicant's prior application, application number: 202310415299.6, patent name: a mobile container supermagnetic sewage treatment system, which adopts the first structural principle. The second is to use sedimentation equipment to flocculate the suspended matter, and then send it to the supermagnetic separator to separate the magnetic seeds and the suspended matter. In this structure, the cost will be relatively lower, such as application number: 201921227792.0, patent name: a magnetic flocculation sedimentation sewage treatment system, which adopts the second structure.

[0003] Among them, the magnetic flocculation sewage treatment equipment using sedimentation generally adds coagulants, flocculants and magnetic seeds to the sewage to flocculate the suspended matter in the sewage, and then separates the sludge in the sewage through a sedimentation tank equipped with inclined plates. In the process of sewage entering the sedimentation tank, the sewage containing sludge enters from the bottom of the sedimentation tank and passes through the inclined plates from bottom to top. At the inclined plate position, the sludge in the sewage settles on each layer of inclined plates under the action of gravity, and slides down along the inclined plates to the bottom of the sedimentation tank. The sludge at the bottom of the sedimentation tank is scraped to the mud outlet by the scraper at the bottom to be discharged, thereby realizing the mud removal treatment of the sewage.

[0004] However, this structure has the following shortcomings:

[0005] 1. Since the scraper blade scrapes at the bottom of the sedimentation tank for a long time, it is a wear-prone part. The stirring mechanism that drives the scraper blade is also under great force and needs frequent repair and maintenance. During routine repair, maintenance and replacement, the staff needs to enter the sedimentation tank from the top of the sedimentation tank through a ladder, which is inconvenient and has certain safety hazards;

[0006] 2. The distance between the inclined plate and the sedimentation tank is not very large. For super-large sedimentation tanks, the space between the two is enough for maintenance personnel to pass through, but it is still easy to scratch the maintenance personnel when passing through. However, for non-super-large or large sedimentation tanks, the space between the two is insufficient. When maintenance personnel need to enter the sedimentation tank, they need to remove the inclined plate, which makes repair, maintenance and replacement particularly inconvenient;

[0007] 3. When sewage treatment is suspended, the water inside the sedimentation tank is not flowing, or the sedimentation tank has been running for a long time, the sludge on the inclined plate is easy to stick to the inclined plate, causing blockage of the inclined plate. During the subsequent normal sludge treatment, it will affect the sludge treatment efficiency and require manual cleaning, which is very inconvenient. Summary of the invention

[0008] The utility model aims to provide a magnetic flocculation sedimentation device, which can improve the convenience of equipment repair, maintenance and cleaning by using the structure, and can also effectively prevent the occurrence of blockage, reduce the maintenance rate and extend the service life.

[0009] To achieve the above object, the technical solution adopted by the utility model is: a magnetic flocculation sedimentation device, comprising a sedimentation tank, the sedimentation tank comprising an overflow chamber and a sedimentation chamber connected to each other, the overflow chamber is arranged above the sedimentation chamber;

[0010] An oblique tube mechanism is provided in the overflow cavity, and a plurality of filling cavities penetrating the top and bottom of the oblique tube mechanism are provided inside the oblique tube mechanism;

[0011] A sewage outlet is provided at the bottom of the sedimentation chamber, a mud scraping mechanism is provided in the sedimentation chamber, and a driving mechanism is provided at the top of the sedimentation tank, and the driving mechanism drives the mud scraping mechanism to rotate;

[0012] An inspection port is also provided on the lower side wall of the sedimentation tank, the inspection port is communicated with the sedimentation chamber, and a sealing member for sealing the inspection port is detachably mounted on the inspection port.

[0013] In the above technical solution, a flange is provided on the outer wall of the sedimentation tank at the inspection port, and the sealing member is installed on the flange to seal the inspection port;

[0014] And / or, a sealing ring is provided between the sealing member and the flange.

[0015] In the above technical solution, the filler cavity is arranged to be inclined from top to bottom;

[0016] And / or, the filling cavity is not perpendicular to the horizontal plane.

[0017] In the above technical solution, a support frame is provided in the sedimentation tank, the support frame is arranged between the overflow chamber and the sedimentation chamber, and the bottom of the inclined tube mechanism is installed on the support frame.

[0018] In the above technical solution, the inclined tube mechanism includes a plurality of inclined tubes, and the outer walls of adjacent inclined tubes are in contact, connected or have a micro-gap;

[0019] Each of the packing chambers is disposed in one of the inclined tubes;

[0020] And / or, the inclined tube mechanism is arranged to tilt rightward from top to bottom, and there is a distance between at least one side of the left side or the right side of the inclined tube mechanism and the inner wall of the overflow chamber.

[0021] In the above technical solution, the bottom of the sedimentation chamber is an arc-shaped surface, and the sludge scraping mechanism includes a stirring shaft, mounting rods symmetrically arranged on both sides below the stirring shaft, and a scraper arranged at the bottom of the mounting rod;

[0022] The inner end of the mounting rod is connected to the lower outer wall of the stirring shaft, and a plurality of scrapers are installed at the bottom of each mounting rod. The scrapers are arranged at intervals from the outside to the inside, and the bottom surface of each scraper is against the arc surface;

[0023] And / or, the sewage outlet is arranged at the exact center of the bottom surface of the arc-shaped surface, and the bottom of the stirring shaft is inserted into the sewage outlet;

[0024] And / or, the driving mechanism is a motor assembly, the motor assembly is installed on the top of the sedimentation tank, the top of the stirring shaft passes through the inclined tube mechanism and is connected to the motor assembly, and the motor assembly drives the stirring shaft to rotate.

[0025] In the above technical solution, the plurality of scrapers installed at the bottom of the same mounting rod are arranged parallel to each other, and an angle is formed between the scraper and the mounting rod, and the angle between the scraper and the mounting rod is greater than 0° and less than 90°;

[0026] And / or, the bottom of the scraper is a flexible scraper.

[0027] In the above technical solution, the installation rod is arranged upwardly and tilted from inside to outside;

[0028] A first reinforcing rod is also provided directly above each of the mounting rods. The first reinforcing rod is arranged perpendicular to the stirring shaft. The inner end of the first reinforcing rod is connected to the outer wall of the stirring shaft, and the bottom of the outer end of the first reinforcing rod is connected to the top of the outer end of the corresponding mounting rod.

[0029] And / or, each of the first reinforcing rods is further provided with a first reinforcing rope, the bottom of the first reinforcing rope is connected to the top surface of the corresponding first reinforcing rod, and the top of the first reinforcing rope is connected to the middle outer surface of the stirring shaft;

[0030] And / or, two second reinforcing rods are symmetrically provided on the lower outer surface of the stirring shaft, and the two first reinforcing rods and the two second reinforcing rods form a cross structure;

[0031] The second reinforcing rod is arranged on a plane between the mounting rod and the first reinforcing rod;

[0032] The inner end of the second reinforcement rod is vertically installed on the outer surface of the stirring shaft, and second reinforcement ropes are respectively provided on both sides of the middle part of each second reinforcement rod, one end of the second reinforcement rope is connected to the middle part of the second reinforcement rod, and the other end of the second reinforcement rope is connected to the outer surface of the middle part of the side mounting rod.

[0033] In the above technical solution, the stirring shaft and the mounting rod are hollow structures, a main air cavity is provided in the center of the stirring shaft, a side air cavity is provided in the mounting rod, the inner end of the side air cavity is connected to the main air cavity, and a plurality of air holes connected to the side air cavity are provided at intervals from the outside to the inside on the bottom surface of the mounting rod;

[0034] An air supply mechanism is also installed on the top of the sedimentation tank. The air supply mechanism is connected to the stirring shaft via an air pipe, and the air pipe is connected to the main body air cavity. The air supply mechanism can blow air into the main body air cavity through the air pipe and send it out from the air hole.

[0035] In the above technical solution, a sealing assembly is provided on the outside of the stirring shaft, the sealing assembly is installed on the sedimentation tank, the sealing assembly is covered on the outside of the stirring shaft, a sealed chamber is provided in the sealing assembly, a connecting hole communicating with the main body air cavity is provided on the outer surface of the stirring shaft, the connecting hole is arranged in the sealed chamber, one end of the air pipe is connected to the air outlet of the air supply mechanism, and the other end is connected to the sealed chamber.

[0036] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0037] 1. In the utility model, an inspection port is arranged on the side wall below the sedimentation tank, and a sealing member is installed on the inspection port. Compared with the previous structure, when it is necessary to inspect the components below the inclined pipe mechanism, the sealing member can be opened, and the interior of the sedimentation tank can be directly entered from the inspection port for inspection. In this way, there is no need to disassemble the inclined pipe mechanism, which can improve the convenience of inspection and reduce the labor intensity of the maintenance personnel, and can also effectively ensure the safety of inspection and maintenance;

[0038] 2. In the utility model, air holes are arranged on the mounting rod, and air can be blown into the air holes by the air supply mechanism to realize the backwashing function. The sludge in the inclined tube mechanism can be removed by backwashing, which can prevent the sludge from clogging. Manual cleaning is not required, and the sludge treatment efficiency is effectively guaranteed, the labor intensity is reduced, and the maintenance rate is also reduced;

[0039] 3. In the present invention, the installation rod is reinforced by providing the first reinforcement rod and the second reinforcement rod, which can effectively extend the service life of the installation rod and reduce the maintenance rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model;

[0041] Figure 2 It is a schematic cross-sectional view of the structure of the first embodiment of the present utility model;

[0042] Figure 3 It is a schematic cross-sectional structure diagram of the first embodiment of the utility model in a three-dimensional state;

[0043] Figure 4 It is a schematic diagram of the structure inside the sedimentation tank in the first embodiment of the utility model;

[0044] Figure 5 It is a structural schematic diagram of the mud scraping mechanism in the first embodiment of the utility model;

[0045] Figure 6 It is a partial cross-sectional structural schematic diagram of the scraper mechanism in the first embodiment of the utility model;

[0046] Figure 7 It is a schematic diagram of the partial cross-sectional structure of the sealing component in the first embodiment of the utility model.

[0047] Among them: 1. sedimentation tank; 2. overflow chamber; 3. sedimentation chamber; 4. inclined tube mechanism; 5. packing chamber; 6. sewage outlet; 7. driving mechanism; 8. inspection port; 9. sealing member; 10. flange; 11. support frame; 12. inclined tube; 13. stirring shaft; 14. mounting rod; 15. scraper; 16. first reinforcing rod; 17. first reinforcing rope; 18. second reinforcing rod; 19. second reinforcing rope; 20. main air cavity; 21. side air cavity; 22. air hole; 23. air supply mechanism; 24. air pipe; 25. sealing assembly; 26. sealing chamber; 27. connecting hole. DETAILED DESCRIPTION

[0048] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0049] Example 1: See Figures 1 to 7 As shown, a magnetic flocculation sedimentation device comprises a sedimentation tank 1, wherein the sedimentation tank 1 comprises an overflow chamber 2 and a sedimentation chamber 3 which are interconnected, wherein the overflow chamber 2 is arranged above the sedimentation chamber 3, and the bottom of the sedimentation chamber 3 is a funnel-shaped structure with a larger top and a smaller bottom;

[0050] The overflow chamber 2 is provided with an inclined tube mechanism 4, and the inclined tube mechanism 4 is provided with a plurality of filling chambers 5 penetrating the top and bottom of the inclined tube mechanism 4;

[0051] A sewage outlet 6 is provided at the bottom of the sedimentation chamber 2, a mud scraping mechanism is provided in the sedimentation chamber 2, and a driving mechanism 7 is provided at the top of the sedimentation tank 1, and the driving mechanism 7 drives the mud scraping mechanism to rotate;

[0052] An inspection port 8 is also provided on the lower side wall of the sedimentation tank 2 . The inspection port 8 is communicated with the sedimentation chamber 2 . A sealing member 9 for sealing the inspection port 8 is detachably mounted on the inspection port 8 .

[0053] In this embodiment, a water outlet is provided above the sedimentation tank to communicate with the overflow chamber, and the water outlet is provided above the inclined tube mechanism. When in use, sewage with floccules enters the sedimentation chamber, and some floccules will settle to the bottom of the overflow chamber, and the sewage will flow upward. In this process, sewage mixed with floccules will flow upward from the filler chamber. Due to the different specific gravities of floccules and water, other floccules will be settled in each filler chamber. Due to the fluidity of water, the sludge in the filler chamber will also fall downward, and finally fall to the bottom of the sedimentation chamber. The scraping mechanism will scrape the floccules (sludge) on the bottom of the sedimentation chamber into the sewage outlet, and the sludge will be sent to the next process through the sewage outlet, and the water without sludge will be discharged from the water outlet, and the cycle will continue. Among them, since the scraping mechanism needs to perform the scraping action and will also contact with the sewage, it will be worn or damaged after long-term operation, and it needs to be repaired. In the prior art, in order to improve the sedimentation efficiency and ensure the sedimentation effect, the edge of the inclined tube mechanism will contact the side wall of the sedimentation tank, and the maintenance personnel need to disassemble the inclined tube mechanism before they can carry out maintenance, which is inconvenient and inefficient. Therefore, in this embodiment, an inspection port is set on the side wall below the sedimentation tank, wherein the inspection port is below the inclined tube mechanism. In this embodiment, the inspection port is set on the right side wall below the sedimentation tank, and the inspection port connects the outer wall of the sedimentation tank with the sedimentation chamber, and the inspection port is closed and sealed by a seal. When maintenance is needed, the seal is directly removed from the inspection port, and the maintenance personnel directly enter the sedimentation chamber from the inspection port to inspect, repair or replace the internal mechanism. The maintenance personnel do not need to dismantle the inclined tube mechanism, which can effectively improve the convenience of maintenance and reduce the labor intensity of the maintenance personnel. At the same time, the inclined tube mechanism does not need to be disassembled, which can prevent possible damage to the inclined tube mechanism during disassembly and installation.

[0054] See also Figures 1 to 3 As shown, a flange 10 is provided on the outer wall of the sedimentation tank 1 at the inspection port 8 , and the sealing member 9 is installed on the flange 10 to seal the inspection port 8 .

[0055] In this embodiment, the seal is a sealing plate, and a flange is arranged on the outer wall of the sedimentation tank on the right side of the inspection port. The seal is directly connected to the flange by bolts, so that the seal and the sedimentation tank can be quickly installed and disassembled for easy maintenance.

[0056] Furthermore, in order to ensure the sealing effect of the seal on the inspection port, a sealing ring is provided between the seal and the flange, and the sealing ring adopts an elastic sealing ring. In this way, after the seal and the flange are installed, water in the sedimentation tank can be prevented from leaking from the gap between the flange and the seal, thereby ensuring the sealing effect.

[0057] See also Figures 2 to 4 As shown, the packing chamber 5 is tilted from top to bottom; the packing chamber 5 is not perpendicular to the horizontal plane. In this embodiment, the packing chamber is tilted from top to bottom to the right, and the angle between the packing chamber and the horizontal plane is 15° to 75°. In this way, when the sewage flows upward from the packing chamber, the sludge inside is automatically precipitated by weight and falls into the packing chamber. The setting of the packing chamber can increase the contact area between the sewage and the sedimentation tank, which is convenient for the sedimentation of the sludge. At the same time, since the packing chamber is tilted, the sludge settled in the packing chamber will be automatically weighed and fall downward along its tilted direction to the bottom of the sedimentation tank, which is convenient for the scraping mechanism to scrape the sludge into the sewage outlet and discharge it away.

[0058] See also Figures 2 to 4 As shown, a support frame 11 is provided in the sedimentation tank 1 , and the support frame is arranged between the overflow chamber 2 and the sedimentation chamber 3 , and the bottom of the inclined tube mechanism 4 is installed on the support frame 11 .

[0059] In this embodiment, the inclined pipe mechanism has a large deadweight, so a support frame is provided so that the inclined pipe mechanism can be installed, positioned and supported by the support frame. At the same time, the support frame is a hollow structure, which will not affect the upward flow of sewage into the inclined pipe mechanism.

[0060] See also Figures 2 to 4 As shown, the oblique tube mechanism 4 includes a plurality of oblique tubes 12, and the outer walls of adjacent oblique tubes 12 are in contact, connected or have micro-gaps; in this embodiment, the number of oblique tubes is large, and they can be partially connected, partially in contact, and partially have micro-gaps. Take 100 oblique tubes as an example. In order to facilitate the installation and maintenance of the oblique tube mechanism, it can be evenly divided into 5 groups, each group has 20 oblique tubes, and the outer walls of adjacent oblique tubes in each group of oblique tubes can be connected to each other, and there are micro-gaps or contact between the oblique tubes of adjacent groups, so that the bottom area of ​​a group of oblique tubes will be larger, and the hollow size of the support frame can also be larger, so that the oblique tubes can be supported by the support frame. If some oblique tubes are broken, only the oblique tubes of the corresponding group can be disassembled for maintenance and replacement, without the need to disassemble and repair the entire group, which is more convenient and the maintenance and replacement cost will be lower.

[0061] Each of the stuffing chambers 5 is disposed in one of the inclined tubes 12 ; that is, each of the inclined tubes has a stuffing chamber, and the stuffing chamber runs through the top and the bottom of the inclined tube.

[0062] The inclined tube mechanism 4 is arranged to tilt rightward from top to bottom, and there is a distance between at least one side of the left side or the right side of the inclined tube mechanism 4 and the inner wall of the overflow chamber 2 .

[0063] In this embodiment, taking the example of sewage entering the sedimentation tank from the left side, the front and rear sides of the inclined tube mechanism will respectively contact, connect, or have a micro-gap with the front inner wall and the rear inner wall of the overflow chamber, and the right bottom of the inclined tube mechanism will contact, connect, or have a micro-gap with the right inner wall of the overflow chamber, and the left side of the inclined tube mechanism will have a gap with the inner wall of the overflow chamber. A liquid inlet will be set at the upper left side of the sedimentation tank, or a liquid inlet will be set on the upper side wall of the sedimentation tank. The sewage enters the sedimentation tank directly from the left side of the overflow chamber, and flows downward from the gap between the inclined tube mechanism and the inner wall of the sedimentation tank into the sedimentation chamber. Since the sewage enters the sedimentation chamber from the left side, the sewage will not flow upward from the left side, but will only flow upward from the filler chamber for sludge precipitation.

[0064] At the same time, in the prior art, a plurality of inclined plates (the inclined tube mechanism in the present application) are generally used. In this structure, the contact area with the sewage will be smaller and the sludge sedimentation efficiency will be lower. In the present embodiment, an inclined tube is used and the filling chamber is arranged in the inclined tube. In this way, the contact area with the sewage is larger. During the rising process of the sewage in the corresponding filling chamber, the filling chamber has a greater restriction on the sewage therein, so that the sedimentation speed of the sludge in the corresponding filling chamber can be faster, thereby accelerating the sedimentation effect.

[0065] See also Figures 2 to 6 As shown, the bottom of the sedimentation chamber 3 is an arc-shaped surface, and the scraper mechanism includes a stirring shaft 13, mounting rods 14 symmetrically arranged on both sides below the stirring shaft 13, and a scraper 15 arranged at the bottom of the mounting rod 14;

[0066] The inner end of the mounting rod 14 is connected to the lower outer wall of the stirring shaft 13, and a plurality of scrapers 15 are installed at the bottom of each mounting rod 14. The scrapers 15 are arranged at intervals from the outside to the inside, and the bottom surface of each scraper 15 is against the arc surface.

[0067] The driving mechanism 7 is a motor assembly, which is installed on the top of the sedimentation tank 1. The top of the stirring shaft 13 passes through the inclined tube mechanism 4 and is connected to the motor assembly, and the motor assembly drives the stirring shaft 13 to rotate. The motor assembly can be a single motor, or a combination of a motor and a reducer. In this embodiment, the motor assembly is a combination of a motor and a reducer, and the motor is connected to the stirring shaft through the reducer, thereby driving the stirring shaft to rotate.

[0068] Among them, the side wall of the sedimentation chamber above the arc surface is a structure that is larger at the top and smaller at the bottom, that is, the inner wall of the sedimentation chamber above the arc surface is an inclined plane that tilts inward from top to bottom, and the inclination angle of the inclined plane will be relatively small, so that even if the sludge is deposited on the inclined plane, it will flow downward to the arc surface. Among them, the bottom of the center of the arc surface is a sewage outlet, and there are holes on the side wall of the sewage outlet that are connected to the outer wall of the sedimentation tank. The holes will be connected to the equipment of the next process through pipelines (in this embodiment, a return sludge pump is used to discharge the sludge, or a return sludge pump and a residual sludge pump are used to discharge the sludge), so as to discharge the sludge in the sewage outlet. Among them, the bottom of the stirring shaft will be rotatably connected to the middle of the bottom surface of the sewage outlet, which plays a role in reinforcing the stirring shaft. Among them, through the setting of the scraper mechanism, the motor assembly drives the stirring shaft to rotate, and when the stirring shaft rotates, it drives multiple scrapers to rotate simultaneously. Since the bottom of the scraper is in contact with the arc surface, the setting of multiple scrapers will drive the sludge on the outside of the arc surface to move inward and quickly discharge it into the sewage outlet, accelerating the discharge of sludge. Among them, the center of the arc surface will be on the axis of the stirring shaft.

[0069] See also Figures 2 to 6 As shown, the plurality of scrapers 15 installed at the bottom of the same mounting rod 14 are arranged parallel to each other, and there is an angle between the scraper 15 and the mounting rod 14, and the angle between the scraper 15 and the mounting rod 14 is greater than 0° and less than 90°; wherein, in this embodiment, the angle between the scraper and the mounting rod is 15° to 45°. wherein, the scraper is arranged from inside to outside in an inclined manner toward the rotation direction of the stirring shaft, the outer end of each scraper will be at the front end of the rotation side of the adjacent outer end scraper, the inner end of the innermost scraper will be above the sewage outlet, and the outer end of the outermost scraper will be flush with the outer end surface of the arc surface, so that the outer scraper will scrape part of the sludge inward, and then the inner adjacent scraper will continue to scrape the sludge inward, and the sludge will be scraped into the sewage outlet by multiple scrapers in turn, accelerating the discharge of the sludge.

[0070] At the same time, in order to ensure that the scraper is always in contact with the curved surface and prevent rigid friction between the scraper and the curved surface, the bottom of the scraper is a flexible scraper. Preferably, the scraper is a rubber scraper or a silicone scraper, which has a good mud scraping effect and prevents scratches on the sedimentation tank. The maintenance and replacement costs are also low.

[0071] See also Figure 2 , 3 As shown, the bottom surface of the sedimentation tank 1 adopts an arc surface, and combined with the arrangement of the scraper, the discharge of sludge can be accelerated. In order to ensure that each scraper is in contact with the arc surface and facilitate the rapid installation, maintenance and replacement of the scraper, the mounting rod 14 is arranged upwardly from the inside to the outside. The inclination of the mounting rod is adapted to the inclined surface of the arc surface, so that the bottom surface of each scraper can fit the arc surface, ensuring the scraping quality and stability.

[0072] Furthermore, the agitator shaft is vertically arranged, so the mounting rod and the agitator shaft are not perpendicular to each other. Since the mounting rod and the agitator shaft are not vertically connected, and when the scraper blade is scraping, it contacts the sludge and sewage, the mounting rod is mainly subjected to force and is easy to break. Therefore, in this embodiment, a first reinforcing rod 16 is further arranged directly above each mounting rod 14. The first reinforcing rod 16 is arranged perpendicular to the agitator shaft 13, the inner end of the first reinforcing rod 16 is connected to the outer wall of the agitator shaft 13, and the outer end bottom of the first reinforcing rod 16 is connected to the outer end top of the corresponding mounting rod 14. By arranging the first reinforcing rod, a triangular structure is formed between the first reinforcing rod, the mounting rod and the agitator shaft, which can effectively increase the strength of the mounting rod and extend its service life.

[0073] Furthermore, in order to increase the strength of the first reinforcing rod 16, a first reinforcing rope 17 is also provided on each of the first reinforcing rods 16, the bottom of the first reinforcing rope 17 is connected to the top surface of the corresponding first reinforcing rod 16, and the top of the first reinforcing rope 17 is connected to the middle outer surface of the stirring shaft 13. The top of the first reinforcing rope will be set below the inclined tube mechanism. By setting the first reinforcing rope, the first reinforcing rope, the first reinforcing rod and the stirring shaft also form a triangular structure, which can further increase the strength of the first reinforcing rod, thereby enhancing the strength of the mounting rod, the first reinforcing rod and the stirring shaft as a whole, and can also increase the strength of the connection between the mounting rod, the first reinforcing rod and the stirring shaft to prevent breakage and bending.

[0074] See also Figures 2 to 6 As shown, further, due to the rotation of the stirring shaft, the scraper will give the mounting rod a radial force, and the mounting rod is easy to bend laterally. Therefore, in this embodiment, two second reinforcing rods 18 are symmetrically provided on the lower outer surface of the stirring shaft 13, and the two first reinforcing rods 16 and the two second reinforcing rods 18 form a cross structure;

[0075] The second reinforcing rod 18 is disposed on a plane between the mounting rod 14 and the first reinforcing rod 16;

[0076] The inner end of the second reinforcement rod 18 is vertically installed on the outer surface of the stirring shaft 13, and a second reinforcement rope 19 is provided on both sides of the middle part of each second reinforcement rod 18. One end of the second reinforcement rope 19 is connected to the middle part of the second reinforcement rod 18, and the other end of the second reinforcement rope 19 is connected to the outer surface of the middle part of the mounting rod 14 next to it.

[0077] The distance between the second reinforcing rod and the mounting rods on both sides is equal. By setting the second reinforcing rod and connecting the second reinforcing rod to the mounting rod through the second reinforcing rope, the deformation resistance of the reinforcing rod can be increased. At the same time, since the first reinforcing rod is connected to the mounting rod, the deformation resistance of the first reinforcing rod can also be increased, thereby effectively ensuring the strength of the scraping mechanism, extending its service life, and reducing the maintenance rate. In addition, the structure is relatively simple and the cost is relatively low.

[0078] See also Figure 6 As shown, the stirring shaft 13 and the mounting rod 14 are hollow structures, a main air cavity 20 is provided at the center of the stirring shaft 13, a side air cavity 21 is provided inside the mounting rod 14, the inner end of the side air cavity 21 is connected to the main air cavity 20, and a plurality of air holes 22 connected to the side air cavity 21 are provided on the bottom surface of the mounting rod 14 from outside to inside;

[0079] An air supply mechanism 23 is also installed on the top of the sedimentation tank 1. The air supply mechanism 23 is connected to the stirring shaft 13 via an air pipe 24, and the air pipe 24 is connected to the main air cavity 20. The air supply mechanism 23 can blow air into the main air cavity 20 through the air pipe 24 and send it out from the air hole 22.

[0080] In this embodiment, the air supply mechanism is a blower, and air is supplied to the main air cavity through the blower. After the sedimentation tank has been in operation for a long time, there will be some sludge in the packing cavity, or when the sedimentation tank is temporarily stopped and the water inside is no longer flowing, some sludge in the packing cavity will also settle in the packing cavity. Therefore, it is necessary to manually clean the packing cavity, which is very inconvenient. Therefore, in this embodiment, an air supply mechanism is provided, and a main air cavity is provided in the stirring shaft, and a side air cavity and an air hole are provided on the mounting rod. In this way, the air supply mechanism supplies air to the main air cavity, and blows the gas into the sewage in the sedimentation tank through the air hole, so that the packing cavity can be flushed, so that the sludge deposited inside it falls to the bottom of the sedimentation tank, and the sludge is prevented from clogging the packing cavity.

[0081] More preferably, air holes may be provided on the first reinforcing rod and the second reinforcing rod to communicate with the main body air cavity, thereby increasing the aeration volume and ensuring the aeration effect.

[0082] See also Figure 4 , 7As shown, a sealing component 25 is provided on the outside of the stirring shaft 13, and the sealing component 25 is installed on the sedimentation tank 1. The sealing component 25 is covered on the outside of the stirring shaft 13, and a sealing chamber 26 is provided in the sealing component 25. A connecting hole 27 communicating with the main body air cavity 20 is provided on the outer surface of the stirring shaft 13, and the connecting hole 27 is arranged in the sealing chamber 26. One end of the air pipe 24 is connected to the air outlet of the air supply mechanism 23, and the other end is connected to the sealing chamber 26.

[0083] In this embodiment, since the stirring shaft will rotate when it is working, but the air pipe will not rotate with it. Therefore, in order to ensure the connection between the air source and the main air cavity, a sealing assembly is provided on the outside of the stirring shaft, and the sealing assembly is directly installed on the sedimentation tank, wherein a bracket is installed on the top of the sedimentation tank, and the motor assembly and the blower are installed on the bracket, and the sealing assembly is also installed on the bracket. The sealing assembly is directly covered on the outside of the stirring shaft, and the top and bottom of the sealing assembly are sealed and connected to the outer surface of the stirring shaft, so that the sealing chamber is covered on the outside of the stirring shaft, and the connecting hole is always in the sealing chamber, so that when the stirring shaft rotates normally, the air pipe can be connected with the main air cavity through the sealing chamber and the connecting hole, and the stirring shaft rotates to any angle, and the air supply of the air supply mechanism through the air pipe can be delivered into the main air cavity through the connecting hole.

[0084] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0085] In the present utility model, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, or an integral one; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, for example, the two can form a mechanical abutment or abutment connection through abutment, contact, etc., the two can also be directly hung or hung through an intermediate medium, etc., or it can be the internal connection of the two elements or the interaction relationship between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A magnetic flocculation sedimentation device, comprising a sedimentation tank, characterized in that: The sedimentation tank comprises an overflow chamber and a sedimentation chamber which are interconnected, and the overflow chamber is arranged above the sedimentation chamber; An oblique tube mechanism is provided in the overflow cavity, and a plurality of filling cavities penetrating the top and bottom of the oblique tube mechanism are provided inside the oblique tube mechanism; A sewage outlet is provided at the bottom of the sedimentation chamber, a mud scraping mechanism is provided in the sedimentation chamber, and a driving mechanism is provided at the top of the sedimentation tank, and the driving mechanism drives the mud scraping mechanism to rotate; An inspection port is also provided on the lower side wall of the sedimentation tank, the inspection port is communicated with the sedimentation chamber, and a sealing member for sealing the inspection port is detachably mounted on the inspection port.

2. The magnetic flocculation precipitation device according to claim 1, characterized in that: A flange is provided on the outer wall of the sedimentation tank at the inspection port, and the sealing member is installed on the flange to seal the inspection port; And / or, a sealing ring is provided between the sealing member and the flange.

3. The magnetic flocculation precipitation equipment according to claim 1, characterized in that: The packing cavity is arranged to be inclined from top to bottom; And / or, the filling cavity is not perpendicular to the horizontal plane.

4. The magnetic flocculation precipitation equipment according to claim 1, characterized in that: A support frame is provided in the sedimentation tank, the support frame is arranged between the overflow chamber and the sedimentation chamber, and the bottom of the inclined tube mechanism is installed on the support frame.

5. The magnetic flocculation precipitation device according to claim 4, characterized in that: The inclined tube mechanism comprises a plurality of inclined tubes, and the outer walls of adjacent inclined tubes are in contact, connected or have a micro-gap; Each of the packing chambers is disposed in one of the inclined tubes; And / or, the inclined tube mechanism is arranged to tilt rightward from top to bottom, and there is a distance between at least one side of the left side or the right side of the inclined tube mechanism and the inner wall of the overflow chamber.

6. The magnetic flocculation precipitation equipment according to claim 1, characterized in that: The bottom of the sedimentation chamber is an arc-shaped surface, and the scraping mechanism includes a stirring shaft, mounting rods symmetrically arranged on both sides below the stirring shaft, and a scraper arranged at the bottom of the mounting rod; The inner end of the mounting rod is connected to the lower outer wall of the stirring shaft, and a plurality of scrapers are installed at the bottom of each mounting rod. The scrapers are arranged at intervals from the outside to the inside, and the bottom surface of each scraper is against the arc surface; And / or, the sewage outlet is arranged at the exact center of the bottom surface of the arc-shaped surface, and the bottom of the stirring shaft is inserted into the sewage outlet; And / or, the driving mechanism is a motor assembly, the motor assembly is installed on the top of the sedimentation tank, the top of the stirring shaft passes through the inclined tube mechanism and is connected to the motor assembly, and the motor assembly drives the stirring shaft to rotate.

7. The magnetic flocculation precipitation device according to claim 6, characterized in that: The plurality of scrapers installed at the bottom of the same mounting rod are arranged parallel to each other, and an angle is formed between the scraper and the mounting rod, and the angle between the scraper and the mounting rod is greater than 0° and less than 90°; And / or, the bottom of the scraper is a flexible scraper.

8. The magnetic flocculation precipitation device according to claim 6, characterized in that: The mounting rod is arranged upwardly and obliquely from the inside to the outside; A first reinforcing rod is also provided directly above each of the mounting rods. The first reinforcing rod is arranged perpendicular to the stirring shaft. The inner end of the first reinforcing rod is connected to the outer wall of the stirring shaft, and the bottom of the outer end of the first reinforcing rod is connected to the top of the outer end of the corresponding mounting rod. And / or, each of the first reinforcing rods is further provided with a first reinforcing rope, the bottom of the first reinforcing rope is connected to the top surface of the corresponding first reinforcing rod, and the top of the first reinforcing rope is connected to the middle outer surface of the stirring shaft; And / or, two second reinforcing rods are symmetrically provided on the lower outer surface of the stirring shaft, and the two first reinforcing rods and the two second reinforcing rods form a cross structure; The second reinforcing rod is arranged on a plane between the mounting rod and the first reinforcing rod; The inner end of the second reinforcement rod is vertically installed on the outer surface of the stirring shaft, and second reinforcement ropes are respectively provided on both sides of the middle part of each second reinforcement rod, one end of the second reinforcement rope is connected to the middle part of the second reinforcement rod, and the other end of the second reinforcement rope is connected to the outer surface of the middle part of the side mounting rod.

9. The magnetic flocculation precipitation device according to claim 6, characterized in that: The stirring shaft and the mounting rod are hollow structures, a main air cavity is provided in the center of the stirring shaft, a side air cavity is provided in the mounting rod, the inner end of the side air cavity is connected to the main air cavity, and a plurality of air holes connected to the side air cavity are provided on the bottom surface of the mounting rod from outside to inside; An air supply mechanism is also installed on the top of the sedimentation tank. The air supply mechanism is connected to the stirring shaft via an air pipe, and the air pipe is connected to the main body air cavity. The air supply mechanism can blow air into the main body air cavity through the air pipe and send it out from the air hole.

10. The magnetic flocculation precipitation equipment according to claim 9, characterized in that: A sealing assembly is provided on the outside of the stirring shaft, and the sealing assembly is installed on the sedimentation tank. The sealing assembly is covered on the outside of the stirring shaft, and a sealed chamber is provided in the sealing assembly. A connecting hole communicating with the main body air cavity is provided on the outer surface of the stirring shaft, and the connecting hole is arranged in the sealed chamber. One end of the air pipe is connected to the air outlet of the air supply mechanism, and the other end is connected to the sealed chamber.

Images