Magnetic powder recovery device for sewage treatment

Abstract

The invention belongs to the technical field of sewage treatment, and relates to a sewage treatment magnetic powder recovery device, which comprises a motor and a box body, the top of the box body is provided with a first rotating shaft and an adjusting mechanism, the first rotating shaft is slidably sleeved with a sleeve rod, the sleeve rod is provided with a plurality of stirring rods, the sleeve rod is provided with a synchronous suspension rod, and the box body is internally provided with two arc magnets and a removing mechanism. A partition plate is arranged at the bottom of the box body, a sealing cap is arranged in the middle of the partition plate, an inclined face is arranged between the partition plate and the sealing cap, a plurality of powder outlets are formed in the outer wall of the sealing cap, the partition plate divides the box body into a stirring cavity and a powder discharging cavity, an opening mechanism is arranged in the powder discharging cavity, and a water inlet pipe, a water drainage pipe, a first transmission mechanism and a second transmission mechanism are arranged on the outer wall of the box body. And a third transmission mechanism is further arranged in the box body, and the first transmission mechanism, the second transmission mechanism and the third transmission mechanism are all in transmission connection with the adjusting mechanism. The recovery quality of the magnetic powder is improved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a magnetic powder recovery device for wastewater treatment. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering, and is increasingly entering the daily lives of ordinary people. Magnetic powder, a type of hard magnetic single-domain particle, is combined with adhesives and solvents to form magnetic paste, which is then coated onto the surface of a plastic or metal substrate (support) to create magnetic recording materials such as magnetic tapes, disks, and magnetic cards. Magnetic powder is the core component of magnetic coatings and is the main factor determining the magnetic properties of magnetic recording media.

[0003] Chinese invention patent CN112520820B discloses a magnetic powder recovery mechanism for wastewater treatment and its usage method. Specifically, it includes a housing, with a fixed plate fixedly mounted on the top of the housing. A motor is fixedly mounted on the front side of the fixed plate, and the top end of a first rotating shaft is fixedly connected to the output shaft of the motor. The bottom end of the first rotating shaft extends into the housing and is slidably fitted with a sleeve rod. A connecting plate is rotatably mounted on the outer side of the sleeve rod, and multiple stirring rods are fixedly mounted on the outer side of the sleeve rod. A frame-shaped magnet is fixedly mounted inside the housing, with the stirring rods located inside the frame-shaped magnet. A second rotating shaft and the bottom end of a worm gear are rotatably mounted on the top of the housing. This invention has a reasonable structural design, is simple to operate, facilitates the recovery and utilization of magnetic powder from wastewater, requires minimal manual operation, saves time and labor, and improves the recovery efficiency of magnetic powder from wastewater.

[0004] However, the above patent still has shortcomings: the first shaft, the second shaft, and the worm gear of the invention are all driven by a motor. After the motor drives the first shaft to rotate, the second shaft and the worm gear are driven to rotate by the belt, the first pulley, and the second pulley. However, the worm gear rotates so that the striking column can strike the frame magnet, so that the magnetic powder adsorbed by the frame magnet can fall off. That is, the magnetic powder is mixed into the sewage. After the sewage is discharged, a large amount of magnetic powder is still discharged with the sewage. Moreover, relying solely on the striking column to strike the frame magnet cannot make all the magnetic powder detach from the frame magnet, resulting in poor magnetic powder recovery quality. Summary of the Invention

[0005] The technical problem to be solved by this invention is: how to improve the quality of magnetic powder recovery.

[0006] This invention provides a magnetic powder recovery device for wastewater treatment, comprising a motor and a housing. The top of the housing is provided with a first rotating shaft penetrating the top of the housing and an adjustment mechanism for driving the motor to raise and lower. A sleeve rod is slidably sleeved on the first rotating shaft, and multiple stirring rods are provided on the sleeve rod. A synchronous suspension rod is provided on the outer wall of the sleeve rod near its top. The housing contains two arc-shaped magnets and a cleaning mechanism for removing magnetic powder from the two arc-shaped magnets. The bottom of the housing is provided with a partition plate, and a cap is provided in the middle of the partition plate. An inclined surface sloping from the outside to the inside is provided between the partition plate and the cap. The outer wall of the container is provided with multiple powder outlets that connect with the inclined surface. The partition plate divides the container into a stirring chamber and a powder discharge chamber. The powder discharge chamber is provided with an opening mechanism for opening all powder outlets. The outer wall of the container is provided with a water inlet pipe, a drain pipe, a first transmission mechanism, and a second transmission mechanism. The drain pipe is provided with a solenoid valve. The first transmission mechanism is connected to the cleaning mechanism, and the second transmission mechanism is connected to the opening mechanism. The container is also provided with a third transmission mechanism for driving the synchronous suspension rod to reciprocate and lift. The first transmission mechanism, the second transmission mechanism, and the third transmission mechanism are all connected to the adjustment mechanism.

[0007] Preferably, the adjustment mechanism includes a docking shaft, a mounting bracket, an auxiliary bracket, and an adjusting electric push rod. The bottom of the docking shaft is provided with a docking slot with a polygonal cross-section. The auxiliary bracket is provided with a guide sleeve that slides with the docking shaft. An installation plate is installed on the output end of the adjusting electric push rod. The mounting bracket and the auxiliary bracket are both located on the top of the housing. The adjusting electric push rod is vertically installed on the top of the mounting bracket. The motor is inverted and installed on the installation plate. The docking shaft is located inside the guide sleeve. One end of the docking shaft is fixedly connected to the output end of the motor. The top of the first rotating shaft is provided with a docking block that mates with the docking slot. The first rotating shaft and the docking shaft are coaxial.

[0008] Preferably, the cleaning mechanism includes two annular blades, four guide frames, two racks, and two balance blocks. Each rack and balance block has a slider that slides with the guide frames. One end of the second shaft has a first gear. Two annular blades are respectively positioned at the top and bottom of two arc-shaped magnets, with the outer surface of the annular blades fitting against the inner surface of the arc-shaped magnets. The four guide frames are symmetrically arranged in pairs on the inner wall of the housing. Two racks are symmetrically positioned at the top of one end of each of the two arc-shaped magnets, and two balance blocks are symmetrically positioned at the top of the other end of each of the two arc-shaped magnets. Both racks and balance blocks are slidably mounted on their respective guide frames via sliders. The second shaft is rotatably mounted on the housing. The first gear is located between two racks and meshes with both racks. The first transmission mechanism is connected to the second shaft.

[0009] Preferably, the first transmission mechanism includes a second gear, a third gear, a first rotating seat, a second rotating seat, a third rotating shaft, a fourth rotating shaft, a rocker arm, and a linkage rod. A worm gear is mounted on the third rotating shaft, a worm wheel is mounted at one end of the fourth rotating shaft, and a synchronizing disc is mounted at the other end of the fourth rotating shaft. An eccentric column is mounted on the synchronizing disc. A rotating column is mounted on the rocker arm. The second gear is mounted on the mating shaft. Both the first and second rotating seats are mounted on the top of the housing. The third rotating shaft is vertically rotatable on the first rotating seat. The third gear is mounted on the top of the third rotating shaft. The second gear meshes with the third gear. The fourth rotating shaft is horizontally rotatable on the second rotating seat. The worm wheel meshes with the worm gear. The rocker arm is connected to the second rotating shaft. Both ends of the linkage rod are rotatably connected to the eccentric column and the rotating column.

[0010] Preferably, the opening mechanism includes a receiving hopper, a third rotating seat, and a fifth rotating shaft. The outer wall of the receiving hopper is provided with a limiting protrusion, and the bottom of the receiving hopper is provided with a discharge pipe. The bottom of the limiting protrusion is provided with at least two guide posts, and a spring is sleeved on each guide post. The bottom of one of the guide posts is provided with a horizontally arranged abutment plate. One end of the fifth rotating shaft is provided with a fourth gear, and the other end of the fifth rotating shaft is provided with a cam. The bottom of the housing is provided with at least two first guide seats that cooperate with the guide posts. The receiving hopper is located in the powder discharge chamber, and the top of the receiving hopper is slidably disposed in the sealing cap. The discharge pipe passes through the bottom of the housing. All guide posts are slidably disposed on all first guide seats. The two ends of the spring abut against the bottom of the limiting protrusion and the inner bottom wall of the powder discharge chamber. The third rotating seat is disposed at the bottom of the housing. The cam abuts against the top of the abutment plate. The second transmission mechanism is connected to the fourth gear.

[0011] Preferably, the second transmission mechanism includes a vertical slide seat and a slide bar. The top of the slide bar is provided with a cantilever, and the outer wall of the slide bar near its bottom is provided with multiple tooth grooves. The vertical slide seat is disposed on the outer wall of the housing, and the slide bar is slidably disposed on the vertical slide seat. The end of the cantilever is located directly above the second gear, and the tooth grooves mesh with the fourth gear.

[0012] Preferably, the third transmission mechanism includes a second guide seat and a fourth rotating seat. A synchronizing rod is slidably disposed inside the second guide seat. The top of the synchronizing rod is provided with a lug, and a rotating cylinder is disposed on the lug. A guide ball is disposed on the inner wall of the rotating cylinder. A sixth rotating shaft is vertically rotatably disposed on the fourth rotating seat. A first pulley is disposed on the sixth rotating shaft. A circular frame that rotatably engages with the rotating cylinder is disposed on the top of the sixth rotating shaft. A guide groove for driving the guide ball to rise and fall is disposed on the outer wall of the circular frame. The second guide seat and the fourth rotating seat are disposed on the top of the housing. The bottom of the synchronizing rod is connected to the synchronizing suspension rod. A second pulley is disposed on the first rotating shaft. The second pulley and the first pulley are connected by belt drive.

[0013] Preferably, the tank is also equipped with a level gauge.

[0014] The beneficial effects of this invention are as follows:

[0015] Firstly, the magnetic powder recovery device for sewage treatment of the present invention uses a single motor to perform stirring, cleaning of magnetic powder from an arc-shaped magnet, and centralized discharge of magnetic powder. The switching between stirring, cleaning, and discharge operations is achieved by adjusting the height of the motor through an adjustment mechanism, thereby improving the quality of magnetic powder recovery.

[0016] Secondly, the magnetic powder recovery device for sewage treatment of the present invention enables two arc-shaped magnets to reciprocate by adjusting the cooperation between the electric push rod, the first transmission mechanism and the cleaning mechanism. During the reciprocating motion, the annular blade can automatically scrape off the magnetic powder adsorbed on the inner wall of the arc-shaped magnets.

[0017] Thirdly, in the magnetic powder recovery device for sewage treatment of the present invention, the scraped magnetic powder can fall onto the partition plate. By adjusting the cooperation between the electric push rod, the second transmission mechanism and the opening mechanism, the powder outlet can be opened automatically, and the magnetic powder on the partition plate can enter the receiving hopper from the powder outlet and be discharged in a concentrated manner. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the magnetic powder recovery device for wastewater treatment according to the present invention. Figure 1 ;

[0020] Figure 2This is a three-dimensional structural diagram of the magnetic powder recovery device for wastewater treatment according to the present invention. Figure 2 ;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a partial cross-sectional view of the magnetic powder recovery device for wastewater treatment according to the present invention. Figure 1 ;

[0023] Figure 5 This is a partial cross-sectional view of the magnetic powder recovery device for wastewater treatment according to the present invention. Figure 2 ;

[0024] Figure 6 This is a schematic diagram of the cleaning mechanism;

[0025] Figure 7 This is a partial schematic diagram of the magnetic powder recovery device for wastewater treatment according to the present invention;

[0026] Figure 8 This is a partial sectional view of the third transmission mechanism.

[0027] Reference numerals: 1. Motor; 2. Housing; 21. First rotating shaft; 211. Connecting block; 212. Second pulley; 22. Sleeve rod; 221. Stirring rod; 222. Synchronous suspension rod; 23. Divider plate; 231. Inclined surface; 24. Sealing cap; 241. Powder outlet; 25. Stirring chamber; 26. Powder discharge chamber; 27. Water inlet pipe; 28. Drain pipe; 29. ​​First guide seat; 3. Adjustment mechanism; 31. Connecting shaft; 311. Connecting slot; 32. Mounting bracket; 33. Auxiliary bracket; 331. Guide sleeve; 34. Adjusting electric push rod; 341. Mounting plate; 4. Arc magnet; 5. Cleaning mechanism; 51. Ring blade; 52. Guide slide frame; 53. Rack; 54. Balance block; 55. Second rotating shaft; 56. First gear; 57. Slider; 6. Opening mechanism; 61. Receiving hopper; 62. Third rotating seat; 6 3. Fifth rotating shaft; 631. Fourth gear; 632. Cam; 64. Limiting protrusion; 641. Guide post; 642. Spring; 643. Contact plate; 65. Discharge pipe; 7. First transmission mechanism; 71. Second gear; 72. Third gear; 73. First rotating seat; 74. Second rotating seat; 75. Third rotating shaft; 751. Worm; 76. Fourth rotating shaft; 761. Worm wheel; 762. Synchronizing disc; 763. Eccentric column; 77. Rocker arm; 78. Linkage rod; 8. Second transmission mechanism; 81. Vertical slide seat; 82. Slide bar; 821. Gear groove; 83. Cantilever; 9. Third transmission mechanism; 91. Second guide seat; 92. Fourth rotating seat; 93. Synchronizing rod; 94. Support lug; 95. Rotary cylinder; 951. Guide ball; 96. Sixth rotating shaft; 961. First pulley; 97. Circular frame; 971. Guide groove. Detailed Implementation

[0028] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] In this embodiment, such as Figures 1 to 8As shown, a magnetic powder recovery device for sewage treatment includes a motor 1 and a housing 2. The top of the housing 2 has a first rotating shaft 21 penetrating through the top of the housing 2 and an adjustment mechanism 3 for adjusting the lifting and lowering of the motor 1. A sleeve rod 22 is slidably sleeved on the first rotating shaft 21, and multiple stirring rods 221 are provided on the sleeve rod 22. A synchronous suspension rod 222 is provided on the outer wall of the sleeve rod 22 near its top. Two arc-shaped magnets 4 and a cleaning mechanism 5 for removing magnetic powder from the two arc-shaped magnets 4 are provided inside the housing 2. A partition plate 23 is provided at the bottom of the housing 2, and a cap 24 is provided in the middle of the partition plate 23. An inclined surface 231, sloping from the outside to the inside, is provided between the partition plate 23 and the cap 24. The outer wall is provided with multiple powder outlets 241 that connect with the inclined surface 231. The partition plate 23 divides the box 2 into a stirring chamber 25 and a powder discharge chamber 26. The powder discharge chamber 26 is provided with an opening mechanism 6 for opening all powder outlets 241. The outer wall of the box 2 is provided with a water inlet pipe 27, a drain pipe 28, a first transmission mechanism 7 and a second transmission mechanism 8. The drain pipe 28 is provided with a solenoid valve. The first transmission mechanism 7 is connected to the cleaning mechanism 5, and the second transmission mechanism 8 is connected to the opening mechanism 6. The box 2 is also provided with a third transmission mechanism 9 for driving the synchronous suspension rod 222 to reciprocate up and down. The first transmission mechanism 7, the second transmission mechanism 8 and the third transmission mechanism 9 are all connected to the adjustment mechanism 3.

[0030] This invention uses a single motor 1 to perform stirring, cleaning of magnetic powder from the arc-shaped magnet 4, and concentrated discharge of the magnetic powder. Switching between stirring, cleaning, and discharge operations is achieved by adjusting the height of the motor 1 using an adjusting mechanism 3. The adjusting mechanism 3 includes a docking shaft 31, a mounting bracket 32, an auxiliary bracket 33, and an adjusting electric push rod 34. The bottom of the docking shaft 31 has a docking slot 311 with a polygonal cross-section. The auxiliary bracket 33 has a guide sleeve 331 that slides with the docking shaft 31. An mounting plate 341 is installed on the output end of the adjusting electric push rod 34. The mounting bracket 32 ​​and the auxiliary bracket 33 are both located on the top of the housing 2. The adjusting electric push rod 34 is vertically positioned on the top of the mounting bracket 32. The motor 1 is inverted and mounted on the mounting plate 341. The docking shaft 31 is located inside the guide sleeve 331. One end of the docking shaft 31 is fixedly connected to the output end of the motor 1. The top of the first rotating shaft 21 has a docking block 211 that mates with the docking slot 311. The first rotating shaft 21 and the docking shaft 31 are coaxial.

[0031] By adjusting the electric push rod 34 to drive the mounting plate 341 to rise and fall, the mounting plate 341 can drive the motor 1 and the docking shaft 31 to rise and fall synchronously. The guide sleeve 331 can make the docking shaft 31 move more stably when rising and falling. When the docking shaft 31 rises, it can first be connected to the first transmission mechanism 7, and then the first transmission mechanism 7 is used to drive the cleaning mechanism 5 to perform magnetic powder removal operation on the two arc magnets 4.

[0032] The cleaning mechanism 5 includes two annular blades 51, a guide slide frame 52, a rack 53, a balance block 54, and a second rotating shaft 55. There are two annular blades 51, four guide slide frames 52, two racks 53, and two balance blocks 54. Both the rack 53 and the balance block 54 have sliders 57 that slide in cooperation with the guide slide frame 52. One end of the second rotating shaft 55 has a first gear 56. The two annular blades 51 are respectively positioned at the top and bottom of the two arc-shaped magnets 4, with the outer surface of the annular blades 51 touching the inner surface of the arc-shaped magnets 4. The four guide slide frames 52 are symmetrically arranged in pairs on the inner wall of the housing 2. The two racks 53 are symmetrically arranged on the top of one end of the two arc magnets 4. The two balance blocks 54 are symmetrically arranged on the top of the other end of the two arc magnets 4. The racks 53 and balance blocks 54 are slidably arranged on the corresponding guide slide frames 52 by the sliders 57. The second rotating shaft 55 is rotatably arranged on the housing 2. The first gear 56 is located between the two racks 53 and meshes with the two racks 53. The first transmission mechanism 7 is connected to the second rotating shaft 55.

[0033] The first transmission mechanism 7 includes a second gear 71, a third gear 72, a first rotating seat 73, a second rotating seat 74, a third rotating shaft 75, a fourth rotating shaft 76, a rocker arm 77, and a linkage rod 78. The third rotating shaft 75 is equipped with a worm gear 751, one end of the fourth rotating shaft 76 is equipped with a worm wheel 761, and the other end of the fourth rotating shaft 76 is equipped with a synchronous disc 762. The synchronous disc 762 is equipped with an eccentric column 763, and the rocker arm 77 is equipped with a rotating column. The second gear 71 is mounted on the docking shaft 31. The first rotating seat 73 and the second rotating seat 74 are both mounted on the top of the housing 2. The third rotating shaft 75 is vertically rotatably mounted on the first rotating seat 73, and the third gear 72 is mounted on the top of the third rotating shaft 75. The second gear 71 meshes with the third gear 72. The fourth rotating shaft 76 is horizontally rotatably mounted on the second rotating seat 74. The worm wheel 761 meshes with the worm gear 751. The rocker arm 77 is connected to the second rotating shaft 55, and both ends of the linkage rod 78 are rotatably connected to the eccentric column 763 and the rotating column.

[0034] When the docking shaft 31 moves upward, the second gear 71 on the docking shaft 31 can gradually dock with the third gear 72 on the third rotating shaft 75. After the second gear 71 and the third gear 72 mesh, the electric push rod 34 stops working, and the motor 1 drives the docking shaft 31 to rotate. At this time, the docking shaft 31 is not connected to the first rotating shaft 21, so the stirring rod 221 does not perform stirring. Then, the magnetic powder on the inner wall of the arc magnet 4 is removed. Of course, before cleaning, the solenoid valve needs to be opened to let the sewage drain from the drain pipe 28. After the sewage is drained, a level gauge is installed in the tank 2 to facilitate monitoring of the sewage volume. The motor 1 drives the docking shaft 31 to rotate, the docking shaft 31 drives the second gear 71, the second gear 71 drives the third gear 72 to rotate, the third gear 72 drives the third rotating shaft 75 and the worm gear 751 to rotate on the first rotating seat 73, and then the worm gear 751 drives the third rotating shaft 75 to rotate. 1 drives the worm gear 761 to rotate, which in turn drives the fourth rotating shaft 76 and the synchronous disk 762 to rotate. The eccentric column 763 of the synchronous disk 762 drives one end of the linkage rod 78 to move, and the other end of the linkage rod 78 drives the swing rod 77 to swing around the axis of the second rotating shaft 55. The second rotating shaft 55 drives the first gear 56 to rotate clockwise and counterclockwise. After the first gear 56 rotates, the two racks 53 always move in opposite directions. The racks 53 drive the corresponding arc magnet 4 to move up and down. The arc magnet 4 drives the corresponding ring blade 51 to scrape the inner wall of the other arc magnet 4. After the magnetic powder is scraped off by the ring blade 51, it will fall onto the inclined surface 231 of the partition plate 23. The inclined surface 231 guides the magnetic powder to the powder outlet 241 of the cap 24. Then, the opening mechanism 6, the second transmission mechanism 8 and the adjustment mechanism 3 are used to discharge all the magnetic powder.

[0035] The opening mechanism 6 includes a receiving hopper 61, a third rotating seat 62, and a fifth rotating shaft 63. The outer wall of the receiving hopper 61 is provided with a limiting protrusion 64. The bottom of the receiving hopper 61 is provided with a discharge pipe 65. The bottom of the limiting protrusion 64 is provided with at least two guide posts 641, and springs 642 are fitted onto the guide posts 641. The bottom of one of the guide posts 641 is provided with a horizontally positioned abutment plate 643. One end of the fifth rotating shaft 63 is provided with a fourth gear 631, and the other end of the fifth rotating shaft 63 is provided with a cam 632. The bottom of the housing 2 is provided with at least two… The first guide seat 29 cooperates with the guide column 641. The receiving hopper 61 is located in the powder discharge chamber 26, and the top of the receiving hopper 61 is slidably disposed in the cap 24. The discharge pipe 65 passes through the bottom of the box body 2. All guide columns 641 are slidably disposed on all first guide seats 29 respectively. The two ends of the spring 642 abut against the bottom of the limiting protrusion 64 and the inner bottom wall of the powder discharge chamber 26. The third rotating seat 62 is disposed at the bottom of the box body 2. The cam 632 abuts against the top of the contact plate 643. The second transmission mechanism 8 is connected to the fourth gear 631.

[0036] The second transmission mechanism 8 includes a vertical slide seat 81 and a slide bar 82. The top of the slide bar 82 is provided with a cantilever 83. The outer wall of the slide bar 82 near its bottom is provided with multiple tooth grooves 821. The vertical slide seat 81 is provided on the outer wall of the housing 2. The slide bar 82 is slidably disposed on the vertical slide seat 81. The end of the cantilever 83 is located directly above the second gear 71. The tooth grooves 821 mesh with the fourth gear 631.

[0037] Adjusting the electric push rod 34 drives the docking shaft 31 to continue moving upward. The second gear 71 and the third gear 72 gradually disengage. Then, the second gear 71 can contact the cantilever 83, and the second gear 71 drives the cantilever 83 to move upward synchronously. The cantilever 83 drives the slide bar 82 to move upward synchronously. The tooth groove 821 on the slide bar 82 can drive the fourth gear 631 to rotate. The fourth gear 631 drives the fifth rotating shaft 63 and the cam 632 to rotate. After the cam 632 rotates, it can press against the contact plate 643 to move downward. The contact plate 643 can drive all the guide columns 641 to move downward synchronously. The guide columns 641 then drive the receiving hopper 6... As the magnetic powder moves downward, all springs 642 are compressed, and then the powder outlet 241 on the cap 24 gradually opens, allowing the magnetic powder to enter the receiving hopper 61 through the powder outlet 241. After that, the magnetic powder is discharged from the discharge pipe 65 of the receiving hopper 61. Once the magnetic powder is discharged, the electric push rod 34 is adjusted to drive the docking shaft 31 to move downward. The cantilever 83 loses the upward force of the second gear 71, and all springs 642 drive the limiting protrusion 64 and the receiving hopper 61 to move upward through their own elasticity. The powder outlet 241 is then closed again. At the same time, the fifth rotating shaft 63 can rotate in the opposite direction, and the slide bar 82 can move downward to return to its original position.

[0038] The invention also enables the sleeve rod 22 to move up and down reciprocally via the third transmission mechanism 9, thereby fully agitating the sewage and facilitating the adsorption of the absolute magnetic powder by the arc-shaped magnet 4. The third transmission mechanism 9 includes a second guide seat 91 and a fourth rotating seat 92. A synchronizing rod 93 is slidably disposed inside the second guide seat 91. A support lug 94 is provided at the top of the synchronizing rod 93. A rotating cylinder 95 is disposed on the support lug 94. A guide protrusion ball 951 is provided on the inner wall of the rotating cylinder 95. A sixth rotating rod is vertically rotatably disposed on the fourth rotating seat 92. The sixth rotating shaft 96 is provided with a first pulley 961. The top of the sixth rotating shaft 96 is provided with a circular frame 97 that rotates with the rotating cylinder 95. The outer wall of the circular frame 97 has a guide groove 971 for driving the guide ball 951 to rise and fall. The second guide seat 91 and the fourth rotating seat 92 are provided on the top of the housing 2. The bottom of the synchronous rod 93 is connected to the synchronous suspension rod 222. The first rotating shaft 21 is provided with a second pulley 212. The second pulley 212 is connected to the first pulley 961 through belt drive.

[0039] Adjusting the electric push rod 34 drives the docking shaft 31 to move downward, and the docking slot 311 on the docking shaft 31 can gradually be inserted into the docking block 211. The motor 1 drives the docking shaft 31 to rotate, and the docking shaft 31 can drive the first rotating shaft 21 to rotate. The first rotating shaft 21 drives the first pulley 961 and the sixth rotating shaft 96 to rotate through the second pulley 212 and the belt. The sixth rotating shaft 96 drives the circular frame 97 to rotate synchronously. After the circular frame 97 rotates, it can use the guide groove 971 to drive the guide ball 951 to reciprocate and lift, that is, the rotating cylinder 95 also reciprocates and lifts. The rotating cylinder 95 drives the support lug 94 and the synchronous rod 93 to lift synchronously. The synchronous rod 93 drives the synchronous suspension rod 222 and the sleeve rod 22 to lift synchronously. Compared with the prior art, the lifting of the sleeve rod 22 is more stable by adopting the above mechanism.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A magnetic powder recovery device for wastewater treatment, characterized in that, The device includes a motor (1) and a housing (2). The top of the housing (2) has a first rotating shaft (21) penetrating the top of the housing (2) and an adjustment mechanism (3) for adjusting the height of the motor (1). A sleeve rod (22) is slidably mounted on the first rotating shaft (21). Multiple stirring rods (221) are mounted on the sleeve rod (22). A synchronous suspension rod (222) is mounted on the outer wall of the sleeve rod (22) near its top. The housing (2) contains two arc-shaped magnets (4) and a cleaning mechanism (5) for removing magnetic powder from the two arc-shaped magnets (4). The bottom of the housing (2) has a partition plate (23). A cap (24) is located in the middle of the partition plate (23). An inclined surface (231) sloping from the outside in is located between the partition plate (23) and the cap (24). Multiple stirring rods (231) are mounted on the outer wall of the cap (24). The inclined surface (231) is connected to the powder outlet (241). The partition plate (23) divides the box (2) into a stirring chamber (25) and a powder discharge chamber (26). The powder discharge chamber (26) is provided with an opening mechanism (6) for opening all powder outlets (241). The outer wall of the box (2) is provided with a water inlet pipe (27), a drain pipe (28), a first transmission mechanism (7) and a second transmission mechanism (8). The drain pipe (28) is provided with a solenoid valve. The first transmission mechanism (7) is connected to the cleaning mechanism (5). The second transmission mechanism (8) is connected to the opening mechanism (6). The box (2) is also provided with a third transmission mechanism (9) for driving the synchronous suspension rod (222) to reciprocate. The first transmission mechanism (7), the second transmission mechanism (8) and the third transmission mechanism (9) are all connected to the adjustment mechanism (3).

2. The magnetic powder recovery device for wastewater treatment according to claim 1, characterized in that: The adjustment mechanism (3) includes a docking shaft (31), a mounting bracket (32), an auxiliary bracket (33), and an adjustment electric push rod (34). The bottom of the docking shaft (31) is provided with a docking slot (311) with a polygonal cross-section. The auxiliary bracket (33) is provided with a guide sleeve (331) that slides with the docking shaft (31). The output end of the adjustment electric push rod (34) is equipped with a mounting plate (341). The mounting bracket (32) and the auxiliary bracket (33) are both located in the housing. (2) At the top, the adjusting electric push rod (34) is vertically set at the top of the mounting bracket (32), the motor (1) is inverted and set on the mounting plate (341), the docking shaft (31) is set in the guide sleeve (331), one end of the docking shaft (31) is fixedly connected to the output end of the motor (1), the top of the first rotating shaft (21) is provided with a docking block (211) that docks with the docking slot (311), and the first rotating shaft (21) and the docking shaft (31) are coaxial.

3. The magnetic powder recovery device for wastewater treatment according to claim 2, characterized in that: The cleaning mechanism (5) includes two annular blades (51), a guide slide frame (52), a rack (53), a balance block (54), and a second rotating shaft (55). Two annular blades (51) are provided, four guide slide frames (52) are provided, two racks (53) are provided, and two balance blocks (54) are provided. Each rack (53) and balance block (54) has a slider (57) that slides with the guide slide frame (52). A first gear (56) is provided at one end of the second rotating shaft (55). The two annular blades (51) are respectively positioned at the top and bottom of two arc-shaped magnets (4). The outer surface of the annular blade (51) is flush with the arc-shaped magnet (4). The inner surfaces are fitted together, and the four guide slide frames (52) are symmetrically arranged in pairs on the inner wall of the box (2). The two racks (53) are symmetrically arranged on the top of one end of the two arc magnets (4), and the two balance blocks (54) are symmetrically arranged on the top of the other end of the two arc magnets (4). The racks (53) and balance blocks (54) are slidably arranged on the corresponding guide slide frames (52) by the slider (57). The second rotating shaft (55) is rotatably arranged on the box (2). The first gear (56) is located between the two racks (53) and the first gear (56) meshes with the two racks (53). The first transmission mechanism (7) is connected to the second rotating shaft (55) in a transmission connection.

4. The magnetic powder recovery device for wastewater treatment according to claim 3, characterized in that: The first transmission mechanism (7) includes a second gear (71), a third gear (72), a first rotating seat (73), a second rotating seat (74), a third rotating shaft (75), a fourth rotating shaft (76), a rocker arm (77), and a linkage rod (78). The third rotating shaft (75) is provided with a worm gear (751), one end of the fourth rotating shaft (76) is provided with a worm wheel (761), the other end of the fourth rotating shaft (76) is provided with a synchronous disc (762), the synchronous disc (762) is provided with an eccentric column (763), the rocker arm (77) is provided with a rotating column, and the second gear (71) is mounted on the docking shaft (31). The first rotating seat (73) and the second rotating seat (74) are both set on the top of the housing (2). The third rotating shaft (75) is vertically rotatably set on the first rotating seat (73). The third gear (72) is set on the top of the third rotating shaft (75). The second gear (71) meshes with the third gear (72). The fourth rotating shaft (76) is horizontally rotatably set on the second rotating seat (74). The worm gear (761) meshes with the worm (751). The rocker arm (77) is connected to the second rotating shaft (55). The two ends of the linkage rod (78) are rotatably connected to the eccentric column (763) and the rotating column.

5. The magnetic powder recovery device for wastewater treatment according to claim 4, characterized in that: The opening mechanism (6) includes a receiving hopper (61), a third rotating seat (62), and a fifth rotating shaft (63). The outer wall of the receiving hopper (61) is provided with a limiting protrusion (64). The bottom of the receiving hopper (61) is provided with a discharge pipe (65). The bottom of the limiting protrusion (64) is provided with at least two guide posts (641). A spring (642) is fitted onto each guide post (641). The bottom of one guide post (641) is provided with a horizontally positioned abutment plate (643). One end of the fifth rotating shaft (63) is provided with a fourth gear (631), and the other end of the fifth rotating shaft (63) is provided with a cam (632). The bottom of the housing (2) is provided with at least... Two first guide seats (29) that cooperate with guide posts (641), the receiving hopper (61) is located in the powder discharge chamber (26), and the top of the receiving hopper (61) is slidably disposed in the cap (24). The discharge pipe (65) passes through the bottom of the box body (2). All guide posts (641) are slidably disposed on all first guide seats (29). The two ends of the spring (642) abut against the bottom of the limiting protrusion (64) and the inner bottom wall of the powder discharge chamber (26). The third rotating seat (62) is disposed at the bottom of the box body (2). The cam (632) abuts against the top of the contact plate (643). The second transmission mechanism (8) is connected to the fourth gear (631) for transmission.

6. The magnetic powder recovery device for wastewater treatment according to claim 5, characterized in that: The second transmission mechanism (8) includes a vertical slide (81) and a slide bar (82). The top of the slide bar (82) is provided with a cantilever (83). The outer wall of the slide bar (82) near its bottom is provided with multiple tooth grooves (821). The vertical slide (81) is set on the outer wall of the housing (2). The slide bar (82) is slidably set on the vertical slide (81). The end of the cantilever (83) is located directly above the second gear (71). The tooth grooves (821) mesh with the fourth gear (631).

7. The magnetic powder recovery device for wastewater treatment according to claim 6, characterized in that: The third transmission mechanism (9) includes a second guide seat (91) and a fourth rotating seat (92). A synchronizing rod (93) is slidably provided inside the second guide seat (91). A support lug (94) is provided at the top of the synchronizing rod (93). A rotating cylinder (95) is provided on the support lug (94). A guide ball (951) is provided on the inner wall of the rotating cylinder (95). A sixth rotating shaft (96) is vertically rotatably provided on the fourth rotating seat (92). A first pulley (961) is provided on the sixth rotating shaft (96). The top of (96) is provided with a circular frame (97) that rotates with the rotating drum (95). The outer wall of the circular frame (97) has a guide groove (971) for driving the guide ball (951) to rise and fall. The second guide seat (91) and the fourth rotating seat (92) are provided on the top of the box (2). The bottom of the synchronous rod (93) is connected to the synchronous suspension rod (222). The first rotating shaft (21) is provided with a second pulley (212). The second pulley (212) and the first pulley (961) are connected by belt drive.

8. The magnetic powder recovery device for wastewater treatment according to claim 7, characterized in that: The box (2) is also equipped with a level gauge.

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