Water inlet pool and rare earth magnetic disk separation and purification device

Abstract

The invention discloses a water inlet pool and a rare earth magnetic disk separation and purification device, and relates to the technical field of magnetic separation equipment. The sewage treatment tank comprises a tank body, a water inlet pipe and water inlet branch pipes, the water inlet pipe is arranged in the tank body, a plurality of water inlet branch pipes are arranged on the side wall of the water inlet pipe, and the outlet ends of the water inlet branch pipes face the bottom of the tank body. The water inlet branch pipes facing downwards are arranged on the water inlet pipe, only sewage discharged by the water inlet branch pipes washes the bottom of the pool body, the effect of preventing deposition at the bottom of the pool body is achieved, a deposited magnetic medium does not need to be jacked up and cleaned, and the sewage treatment cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of magnetic separation equipment technology, specifically providing an inlet tank and a rare earth disk separation and purification device. Background Technology

[0002] Rare earth magnetic disk separation and purification devices are a type of commonly used magnetic separation equipment in the field of wastewater treatment. Their working principle is as follows: after adding magnetic media to the wastewater, the magnetic media adsorbs suspended impurities in the wastewater; as the wastewater enters the device and flows through the rare earth magnetic disk assembly, the rare earth disks adsorb the magnetic media carrying the impurities, thus achieving simultaneous separation of the magnetic media and impurities, achieving the effect of wastewater purification.

[0003] To improve the wastewater purification efficiency of magnetic separation equipment, multiple rare-earth magnetic disks are typically installed coaxially and side-by-side on the same rotating shaft. When wastewater flows through the gaps between adjacent rare-earth magnetic disks, the magnetic media within is quickly adsorbed, ensuring effective separation.

[0004] In the process flow, before entering the magnetic separation unit, wastewater needs to be temporarily stored in the inlet tank and then guided to the rare earth disk assembly. However, during this process, some of the impurities adsorbed by the magnetic media are heavy and will be deposited at the bottom of the inlet tank under the action of gravity. These deposited magnetic media need to be cleaned regularly, which significantly increases the operating cost of wastewater treatment. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides an anti-deposition water inlet tank.

[0006] The technical solution of the present invention is as follows:

[0007] An inlet tank for a rare earth magnetic disk separation and purification device includes a tank body, an inlet pipe, and inlet branch pipes. The inlet pipe is disposed within the tank body, and several inlet branch pipes are arranged on its side wall. The outlet ends of the inlet branch pipes face the bottom of the tank body. In this design, wastewater in the inlet pipe enters the tank body through the inlet branch pipes. Because the inlet branch pipes face the bottom of the tank body, the wastewater discharged from the inlet branch pipes will flush the bottom of the tank body. Under the flushing action of the wastewater, the magnetic media and adsorbed impurities can be prevented from depositing in the inlet tank. By using the inlet water to flush the bottom of the tank, the deposition of magnetic media can be prevented, eliminating the additional costs incurred in cleaning the magnetic media.

[0008] To address the uneven water inflow in the inlet tank, which concentrates wastewater at one point and results in a high water flow velocity at the corresponding rare earth disk, while the flow velocity at other rare earth disks is slow, leading to significant differences in the utilization rate of the rare earth disks and severely limiting the treatment efficiency of the rare earth disk water purification equipment, the axis of the inlet pipe is parallel to the axis of the rare earth disks in the rare earth disk separation and purification device, and each inlet branch pipe is arranged along the axis of the inlet pipe. In this solution, the inlet branch pipes are distributed along the axis of the inlet pipe, allowing the inlet branch pipes to deliver wastewater more evenly into the inlet tank, ensuring more even water inflow throughout the tank. This, in turn, allows the wastewater to flow more evenly to each rare earth disk, resulting in a more uniform utilization rate for each rare earth disk. By utilizing all rare earth disks, the treatment efficiency of the wastewater can be improved.

[0009] Along the water flow direction within the inlet pipe, the water pressure decreases after passing through the first inlet branch pipe. Similarly, as the number of inlet branch pipes increases, the pressure decreases. In other words, along the water flow direction within the inlet pipe, the drainage pressure of each inlet branch pipe decreases, leading to a decrease in the drainage volume of each inlet branch pipe. This results in a significant unevenness in the water intake throughout the pool. Therefore, the diameter of each inlet branch pipe increases along the water flow direction within the inlet pipe. In this design, by controlling the diameter of the inlet branch pipes, the drainage volume is increased evenly across the pool, given the decreasing pressure in each branch pipe.

[0010] The inlet pipe connects to the side wall of the pool, causing concentrated loads on the side wall and making it prone to deformation. To address this, each inlet branch pipe is vertically aligned, and a support is installed inside the pool. The ends of the inlet branch pipes connect to this support, which supports the inlet branch pipes. In this design, the support disperses the load on the pool, thus solving the problem of concentrated loads and deformation.

[0011] Preferably, the support is connected to the bottom of the pool. In this design, the support distributes the load to the bottom of the pool. Therefore, the inlet pipe and the inlet branch pipe are directly or indirectly connected to the side wall and bottom of the pool, respectively, so that the load on the pool is distributed on different surfaces, thereby improving the stability of the pool.

[0012] Preferably, the support includes a support plate, which is vertically arranged. The bottom of the support plate is connected to the bottom of the pool body, and the top of the support plate is connected to the end of the inlet branch pipe. In this solution, the support plate has a simple structure and is easy to obtain, and the support plate can be directly fixed to the pool body by welding, resulting in low processing costs.

[0013] The water entering the inlet pool is difficult to achieve completely uniform flow. To further ensure a more even water flow from the inlet pool, an opening is provided on one side of the pool body. This opening is fitted with a flow divider plate, which has multiple flow divider holes. In this design, the water discharged from the inlet pool needs to pass through the flow divider holes on the flow divider plate, thus diverting the water flow at the outlet to achieve a more uniform flow rate.

[0014] To address the issue of large impurities in the liquid clogging the diversion orifice, a filter screen is also installed in the opening. A gap exists between the filter screen and the diversion plate, and the filter screen is positioned on the side of the diversion plate closer to the inlet pipe. In this design, the filter screen can trap large impurities within the inlet pool, thus preventing clogging.

[0015] Even with a filter screen, some impurities entering the space between the filter screen and the diversion plate may still clog the diversion holes. To address this, a support and a drain nozzle are installed at the bottom of the opening. The diversion plate is connected to the support, which creates a gap between the bottom of the diversion plate and the bottom of the opening. The drain nozzle is located on the side of the support near the filter screen, and it has a drain hole on that side. When the drain hole releases air, it causes the liquid at the bottom of the diversion plate to flow rapidly, resulting in a downward flow of liquid between the diversion plate and the filter screen. Impurities clogging the diversion holes are dislodged by the downward-flowing liquid and eventually discharged from the bottom of the diversion plate with the liquid, thus solving the problem of impurities clogging the diversion holes.

[0016] The present invention also provides a rare earth disk separation and purification device, including the above-mentioned water inlet tank.

[0017] The beneficial effects of this invention are:

[0018] This invention features several downward-facing branch inlet pipes on the inlet pipe. Only the wastewater discharged from these branch inlet pipes flushes the bottom of the tank, preventing sediment buildup at the bottom. This eliminates the need to lift and clean the deposited magnetic media, thus reducing wastewater treatment costs. Attached Figure Description

[0019] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1;

[0021] Figure 2 This is a cross-sectional view from the rear view of Embodiment 1;

[0022] Figure 3 This is a cross-sectional view from the rear view of Embodiment 2;

[0023] Figure 4 This is a cross-sectional view from the rear view of Embodiment 3;

[0024] Figure 5 A cross-sectional view from a bottom angle in Example 4;

[0025] Figure 6 This is a schematic diagram of the structure of Example 7;

[0026] Figure 7 for Figure 6 Enlarged view of a portion of point A in the middle;

[0027] Figure 8 This is a cross-sectional view from the right perspective of Embodiment Seven;

[0028] Figure 9 This is a front view of the splitter plate in Embodiment Six;

[0029] Figure 10 This is a cross-sectional view from the right perspective of Example 8.

[0030] In the above figures, the corresponding reference numerals are as follows:

[0031] 1. Pool body; 2. Inlet pipe; 3. Opening; 4. Inlet branch pipe; 5. Support plate; 6. Diverter plate; 7. Diverter hole; 8. Notch; 9. Upstream area; 10. Midstream area; 11. Downstream area; 12. Support component; 13. Filter screen; 14. Limiting block; 15. Drainage jet pipe; 16. Inclined plate; 17. Flow space; 18. Adsorption pool; 19. Rare earth disk; 20. Rotating shaft. Detailed Implementation

[0032] The technical solution of the present invention will be clearly and completely described in conjunction with the accompanying drawings and through specific embodiments of the present invention.

[0033] Example 1:

[0034] like Figure 1 As shown, this embodiment provides a water inlet pool for a rare earth disk separation and purification device, including a pool body 1, a water inlet pipe 2 and several water inlet branch pipes 4. The water inlet pipe 2 enters the pool body 1 from one side and the end of the pipe entering the pool body 1 abuts against the other side of the pool body 1. The water inlet branch pipes 4 are connected to the water inlet pipe 2 and face the bottom of the pool body 1.

[0035] like Figure 2As shown, it should be noted that the inlet branch pipe 4 can be vertically oriented towards the bottom of the tank 1 or inclined towards the bottom of the tank 1. The inlet branch pipe 4 facing the bottom of the tank 1 allows the discharged wastewater to flush the bottom of the tank 1, preventing sedimentation. However, since an inclined inlet branch pipe 4 is difficult to fix, and welding several inlet branch pipes 4 to the wall of the inlet pipe 2 at different angles also affects welding efficiency, the preferred technical solution is that, after installation, the axis of the inlet branch pipe 4 is set vertically, while the inlet pipe 2 is set horizontally.

[0036] An opening 3 is provided on one side wall of the pool body 1. The opening 3 is located at the top of the side wall and is used to allow sewage in the inlet pool to flow downstream. The width of the opening 3 is the same as the width of the side wall, or the width of the opening 3 is slightly smaller than the width of the side wall. The inlet pipe 2 is arranged parallel to the side wall with the opening 3.

[0037] Example 2:

[0038] This embodiment two provides a water inlet pool. Unlike embodiment one, this embodiment two also includes a support part to support the water inlet branch pipe 4.

[0039] Without a support structure, the water inlet branch pipe 4 is connected to the water inlet pipe 2, and the water inlet pipe 2 is connected to the two side walls of the pool body 1. This causes the load on the pool body 1 to be concentrated at the connection point with the water inlet pipe 2, which can easily lead to deformation of the side walls of the pool body 1.

[0040] The support is connected to the water inlet branch pipe 4 and the pool body 1, so that the load generated by the water inlet pipe 2 and the water inlet branch pipe 4 is more dispersed, avoiding the load from being concentrated in one place and causing the pool body 1 to deform.

[0041] The support can be a support rod, support plate 5, or support beam. The support can be connected to the side wall or bottom of the pool body 1. Its purpose is to distribute the load of the load inlet pipe 2 and the inlet branch pipe 4 to other locations on the side wall of the pool body 1, so that the side wall of the pool body 1 is subjected to more even stress. Alternatively, the load can be distributed to the bottom of the pool body 1 to reduce the load on the side wall of the pool body 1.

[0042] When the support is a crossbeam, the crossbeam can be set perpendicular to the axis of the inlet pipe 2. In this case, one crossbeam is connected to one inlet branch pipe 4. Crossbeams can also be used in combination. For example, one crossbeam can be set parallel to the axis of the inlet pipe 2, and multiple crossbeams can be set perpendicular to the axis of the inlet pipe 2. The crossbeam set perpendicular to the inlet pipe 2 and the crossbeam set parallel to the inlet pipe 2 can be connected. The crossbeam set parallel to the inlet pipe 2 can be connected to the inlet branch pipe 4, forming multiple crossbeams supporting one crossbeam. Then, multiple inlet branch pipes 4 are connected through this supported crossbeam, so that multiple inlet branch pipes 4 are supported.

[0043] like Figure 3As shown, as an optional solution, a support unit supports a water inlet branch pipe 4, and the support unit includes at least two support plates 5.

[0044] The support plate 5 is set vertically, with its bottom connected to the bottom of the pool body 1 and its top connected to the water inlet branch pipe 4. The support plates 5 of the support part are distributed in a circumferential array, so that each support plate 5 can form a more uniform support effect at all parts of the end of the water inlet branch pipe 4.

[0045] As a preferred configuration, the support unit includes four support plates 5, with a certain distance between any two of the four support plates 5. After the sewage is discharged from the inlet branch pipe 4, the sewage is diverted by the action of the four support plates 5. This diversion allows the sewage discharged from different inlet branch pipes 4 to mix again, thereby improving the contact efficiency between impurities and the magnetic medium, thus increasing the adsorption rate of impurities and improving the water purification effect. In addition, the diversion also makes the sewage distribution inside the tank 1 more uniform.

[0046] Of the four support plates 5, two are parallel to the axis of the water purification pipe. This arrangement ensures that the diverted wastewater converges at an angle rather than creating a countercurrent. Furthermore, if support plates are provided on both sides of the support section, the water flow from the support section in four directions can converge with other diverted water flows, increasing the adsorption rate of impurities and improving the water purification effect.

[0047] Example 3:

[0048] This embodiment three provides a water inlet pool. Unlike embodiment one, the water inlet branch pipe 4 in this embodiment three has a different diameter.

[0049] like Figure 4 As shown, the diameter of the inlet branch pipe 4 increases progressively along the flow direction of water in the inlet pipe 2. By increasing the diameter of the inlet branch pipe 4, the drainage volume of the downstream inlet branch pipe 4 can be increased, thereby making the water inflow more uniform throughout the pool 1. A more uniform water inflow throughout the pool 1 results in a more uniform water flow velocity throughout the pool 1, preventing water from concentrating in the pool 1. If the water inflow into the pool 1 is concentrated in one place, the sewage will flow downstream towards the low-pressure area, and the lowest pressure location is in the direction of opening 3. Therefore, in the case of concentrated water inflow, the water in the pool 1 will form a situation of rapid flow in some areas and slow flow in other areas. By controlling the diameter of the inlet branch pipe 4, the water inflow throughout the pool 1 can be made more uniform, and the water flow velocity throughout the pool 1 can be made more uniform.

[0050] This third embodiment also applies to the second embodiment.

[0051] Example 4:

[0052] This embodiment four provides a water inlet pool. Unlike embodiment one, the spacing between the water inlet branch pipes 4 is different in this embodiment four.

[0053] like Figure 5 As shown, the spacing of the inlet branch pipes 4 decreases along the flow direction of the water in the inlet pipe 2. This arrangement brings the downstream inlet branch pipes 4 closer together, thereby increasing the number of discharge points and making the water inflow more uniform throughout the pool 1.

[0054] This fourth embodiment combines the technical solution of the third embodiment. The combination of the two solutions can jointly improve the uniformity of water inflow throughout the pool 1. The diameter of the inlet branch pipe 4 is constrained by the diameter of the inlet pipe 2, and therefore the diameter of the inlet branch pipe 4 is also constrained by the drainage efficiency. Therefore, by changing the diameter of the inlet branch pipe 4 within a small range, and combining this with the arrangement of decreasing spacing of the inlet branch pipes 4 along the water flow direction within the inlet pipe 2, the problem of the constrained range of selectable diameters of the inlet branch pipe 4 can be solved.

[0055] This fourth embodiment also applies to the second embodiment.

[0056] Example 5:

[0057] This embodiment six provides a water inlet pool, which differs from embodiment one in that the opening 3 of the pool body 1 is also provided with a diversion plate 6.

[0058] The diversion plate 6 is connected to the opening 3 of the pool body 1, and the diversion plate 6 is provided with multiple diversion holes 7. The liquid in the pool body 1 needs to be discharged through the diversion holes 7. The multiple diversion holes 7 can be arranged in a rectangular array on the diversion plate 6. During the liquid discharge process, the liquid is constrained by the diversion holes 7, so that the water discharged from the diversion plate 6 in the horizontal direction is more uniform, achieving the effect of uniform water distribution.

[0059] Example 6:

[0060] This sixth embodiment provides a water inlet tank based on the technical solution of the fifth embodiment. The difference between the sixth and fifth embodiments is that the structure of the diversion plate 6 is different.

[0061] The diversion plate 6 is provided with diversion holes 7. Along the water inlet direction of the water inlet pipe 2, the diversion plate 6 is divided into different regions, including an upstream region 9 corresponding to the upstream position in the water inlet direction, a midstream region 10 corresponding to the midstream position in the water inlet direction, and a downstream region 11 corresponding to the downstream position in the water inlet direction. Diversion holes 7 are provided in the upstream region 9, the midstream region 10, and the downstream region 11 respectively.

[0062] Among them, the diameter of the diversion orifice 7 in the upstream region 9 is the smallest, while the diameter of the diversion orifice 7 in the downstream region 11 is larger than that in the upstream region 9, and the diameter of the diversion orifice 7 in the midstream region 10 is larger than that in the downstream region 11.

[0063] Because the water pressure in each inlet branch pipe 4 is different along the water inlet pipe 2, the drainage volume will also be different, resulting in different water pressures in different parts of the pool body 1. Under these circumstances, the drainage volume at each opening 3 of the pool body 1 will also be different, resulting in uneven drainage.

[0064] In this fifth embodiment, the water discharged from the inlet pool is diverted by setting diversion holes 7 of different diameters, thereby making the drainage more uniform. In the pool body 1, the water pressure is highest in the inlet area. The water entering the inlet area flows downstream along the bottom of the pool body 1, and after flowing to the side wall of the pool body 1, it surges upward and merges with the water discharged from the inlet branch pipe 4 of the downstream area 11, resulting in the water pressure in the downstream area 11 being higher than that in the midstream area 10. Therefore, the diversion hole 7 in the midstream area 10 has the largest diameter, which can make the drainage more uniform throughout the diversion plate 6.

[0065] The top of the diversion plate 6 is provided with several notches 8. When the liquid drainage rate in the inlet pool is insufficient, the water level will exceed the position of the notch 8 and overflow from the notch 8, thus preventing the water in the inlet pool from overflowing from the side wall of the pool body 1 into the external environment.

[0066] The shape of the notch 8 can be V-shaped, U-shaped, semi-circular, or irregularly shaped.

[0067] The diverter plate 6 and the opening 3 of the pool body 1 can be connected by welding or fasteners. Alternatively, a vertical slot can be provided on the side wall of the pool body 1, with the width of the slot being greater than the thickness of the diverter plate 6, so that the diverter plate 6 can be inserted into the slot, thereby connecting the diverter plate 6 and the pool body 1.

[0068] Example 7:

[0069] like Figure 6 and Figure 7 As shown, this embodiment seven provides a water inlet pool based on the technical solution of embodiment five. The difference from embodiment five is that a filter screen 13 is also provided at the opening 3 of the pool body 1.

[0070] The filter screen 13 is arranged parallel to the diversion plate 6, and is located on the side closer to the inlet pipe 2. A gap exists between the filter screen 13 and the diversion plate 6, creating a flow space 17 between them. The function of the filter screen 13 is to block excessively large impurities. The filter screen 13 includes a fixed frame, reinforcing beams, and a metal mesh. The edge of the metal mesh is fixed to the fixed frame, and the filter screen 13 is connected to the opening 3 of the pool body 1 through the fixed frame. Both ends of the reinforcing beams are connected to the fixed frame, and several reinforcing beams are provided, dividing the interior of the fixed frame into several rectangular frames. The reinforcing beams support the middle of the metal mesh. When the metal mesh is subjected to water flow, the deformation in the middle is the greatest. If the metal mesh deforms and adheres to the diversion plate 6, it will cause the flow space 17 to become blocked, severely affecting the water flow within the flow space 17. With the reinforcement beam in place, the middle part of the metal mesh can also be supported by the reinforcement beam, which can greatly reduce the deformation of the metal mesh and prevent the excessive deformation of the metal mesh from blocking the flow of liquid in the flow space 17.

[0071] At least two sets of limiting structures are provided on the side wall of the pool body 1. The filter screen 13 is connected to one set of limiting structures, and the diverter plate 6 is connected to the other set of limiting structures. Each set of limiting structures includes two rows of limiting blocks 14, and a slot for inserting the filter screen 13 or the diverter plate 6 is formed between the two rows of limiting blocks 14. The limiting blocks 14 are provided on the side wall of the pool body 1. Any row of limiting blocks 14 includes at least one limiting block 4. During installation, the diverter plate 6 and the filter screen 13 can be inserted into the slots of the corresponding limiting structures from the top. When the diverter plate 6 or the filter screen 13 needs to be removed, it can also be removed from the top. Similarly, two grooves can be directly machined on the side wall of the pool body 1 as slots for the diverter plate 6 and the filter screen 13.

[0072] The limiting block 14 makes the filter screen 13 and the diverter plate 6 parallel to each other at intervals.

[0073] A support member 12 is provided at the bottom of the opening 3 of the pool body 1, and the diversion plate 6 is connected to the support member 12. Therefore, there is a flow channel between the bottom side of the diversion plate 6 and the bottom of the opening 3, and the flow channel is connected to the flow space. The gap between the bottom side of the diversion plate 6 and the bottom of the opening 3 is larger than the diameter of the diversion hole 7. A flow jet pipe 15 is provided at the bottom of the flow space 17. The flow jet pipe is located at the bottom of the filter screen 13, or the flow jet pipe is close to the filter screen 13. The axial direction of the flow jet pipe 15 is parallel to the diversion plate 6. The side of the flow jet pipe 15 near the support member 12 is provided with multiple jet holes, which face the flow channel to accelerate the liquid flow rate in the flow channel. During use, although the filter screen 13 filters out impurities that are too large, the liquid contains a large number of flocs that condense with magnetic substances. These flocs may continue to condense and form even larger flocs after passing through the filter screen 13. Especially during the drainage process of the diversion hole 7, flocs accumulate in the diversion hole 7 due to the water flow, which can lead to the problem of flocs clogging the diversion hole 7. There is a gap between the bottom side of the diversion plate 6 and the bottom of the opening 3, and the gap between the bottom side of the diversion plate 6 and the bottom of the opening 3 is greater than the diameter of the diversion hole 7. For the diversion hole 7 to achieve a uniform flow distribution effect, the diameter of the diversion hole 7 cannot be too large. If the diameter of the diversion hole 7 is too large, it will not be able to prevent excessively high local flow velocities. On the other hand, the diameter of the diversion hole 7 cannot be too small, as a small diameter can easily cause small flocs to clog the diversion hole 7. Under normal circumstances, the diameter of the diversion hole 7 is 10-30mm. For example, the diameter of the diversion hole 7 can be 15mm. The specific diameter can also be fine-tuned according to the size of the diversion plate 6.

[0074] Even if the diversion orifice 7 is blocked, the liquid can still flow downwards within the flow space 17 and eventually flow away from the bottom of the diversion plate 6. The guide jet pipe 15 ejects airflow from the jet orifice, which propels the liquid towards the guide channel, accelerating the water flow velocity within the channel. This accelerated water flow creates a pressure difference between the bottom and top of the flow space 17, which guides the flocs (especially large flocs) downwards and from the guide channel at the bottom of the opening 3 to the adsorption tank 18 at the rear. The combined action of the guide jet pipe 15, the jet orifice, and the guide channel guides large flocs downwards, preventing them from clogging the guide orifice 7. Furthermore, the guide channel connects to the bottom of the flow space, allowing large flocs to enter the subsequent rare earth disk from the bottom, extending the contact time between the large flocs and the rare earth disk, improving the adsorption effect and the recovery rate of magnetic materials from the flocs. Improving the recovery rate of magnetic substances in flocs can reduce wastewater treatment costs, while improving the adsorption effect can reduce the loss of flocs from rare earth disks, thereby improving the purification effect.

[0075] During normal operation, with the cooperation of the drainage jet pipe and the drainage channel, the water in the flow space 17 will be discharged from the separation hole 7, and will also flow downward within the flow space 17 before being discharged from the drainage channel. Small flocs in the flow space 17 can be discharged from either the diversion hole 7 or the drainage channel. Larger flocs, however, will sink under the combined action of gravity and the downward flow of water, and will eventually be discharged from the drainage channel.

[0076] If large flocs continue to block the diversion orifice 7, as the number of blocked orifices increases, more liquid will be discharged from the drainage channel while the upstream inflow remains constant. This increases the water flow velocity in the drainage channel, strengthens the pressure difference between the top and bottom of the flow space 17, and causes more liquid to flow downwards within the flow space 17. The downward flow of water increases the force exerted on the flocs blocking the diversion orifice 7. As the force from the water flow increases, when the water flow velocity in the flow space 17 exceeds a certain threshold, the large flocs will break down into smaller flocs. These smaller flocs flow towards the bottom of the flow space 17 and are eventually discharged from the drainage channel. After the large flocs break down into smaller flocs, the size of the flocs blocking the diversion orifice 7 decreases, allowing the remaining flocs to pass through, thus relieving the blockage.

[0077] The support member 12 can be a support block or a section of channel steel used for support. The support member 12 can be fixed to the pool body 1 by fasteners or welding. Using channel steel as the support member 12, with the opening of the channel steel facing downwards and the channel steel perpendicular to the diversion plate 6, allows liquid to pass through the channel steel. Using channel steel as the support member 12 also serves a diversion function.

[0078] like Figure 8 As shown, both the support member 12 and the drainage jet pipe 15 are connected to the bottom of the opening 3. An inclined plate 16 can be installed at the bottom of the opening 3, and the support member 12 and the drainage jet pipe 15 are respectively connected to the inclined plate 16. The support member 12 is located on the side of the inclined plate 16 with a lower height, while the drainage jet pipe 15 is located on the side of the inclined plate 16 with a higher height. When jetting occurs through the jet hole, impurities can slide downwards along the inclined plate 16. The combination of the inclined plate 16 and the drainage jet pipe 15 provides a better anti-deposition effect.

[0079] The air intake direction of the diversion jet pipe 15 is opposite to the water intake direction of the water inlet pipe 2. Similar to the water pressure in the water inlet pipe 2, the air pressure in the diversion jet pipe 15 gradually decreases as the airflow exits from the jet holes. Therefore, the exhaust volume and exhaust pressure of the downstream jet hole are lower than those of the upstream jet hole. The greater the exhaust volume and exhaust pressure of the jet hole, the greater the force exerted by the exhaust airflow on the liquid at the bottom of the flow space 17, which can make the liquid flow faster. The upstream position of the airflow in the diversion jet pipe 15 corresponds to the downstream position of the water flow in the water inlet pipe 2. However, the water pressure at the downstream position of the water inlet pipe 2 is lower than that at the upstream position. Therefore, the water pressure at the downstream position of the water inlet pipe 2 is lower than that at the upstream position. When used in conjunction with the diversion jet pipe, the side with lower water pressure has higher exhaust pressure. The higher air pressure accelerates the water flow speed, making the liquid downstream of the water inlet pipe 2 more affected by the airflow, resulting in a more uniform water flow velocity at all points on the bottom of the diversion plate and achieving a more uniform diversion effect.

[0080] The acceleration effect of airflow on water flow is influenced by both airflow and air pressure. The difference in airflow emitted from different jet nozzles has a small impact on the water flow velocity. To enhance the difference in acceleration effect of jet nozzles at different locations, jet nozzles of different diameters can be installed on the guide jet pipe. The diameter of the jet nozzle located upstream is larger than that of the jet nozzle located downstream. This arrangement enhances the difference in exhaust emissions from different jet nozzles, thereby increasing the influence of airflow on the water flow velocity.

[0081] The flow divider 6 in this embodiment 7 can adopt the structure of the flow divider 6 in embodiment 6.

[0082] Example 8:

[0083] This embodiment eight provides a rare earth disk separation and purification device, including any one of the water inlet tanks in Embodiment 1, Embodiment 2, Embodiment 3, Embodiment 4, Embodiment 5, Embodiment 6, or Embodiment 7.

[0084] like Figure 10As shown, the system also includes an adsorption tank 18, in which a rare earth disk 19 and a rotatably mounted shaft 20 are disposed. The rare earth disk 19 is connected to the shaft 20. The shaft 20 is rotatably mounted in the adsorption tank 18, and its rotation drives the rare earth disk 19 to rotate. The adsorption tank 18 is also equipped with a motor, which is connected to the shaft 20 for transmission. The motor drives the shaft 20 to rotate, which in turn drives the rare earth disk 19 to rotate. The axis of the shaft 20 is parallel to the diversion plate and perpendicular to the end face of the rare earth disk 19. The adsorption tank 18 is connected to the inlet tank through an opening 3, and liquid in the flow space 17 can enter the adsorption tank 18 through the diversion hole 7 or the drainage channel. The bottom of the adsorption tank is lower than the height of the drainage channel, and the bottom of the rare earth disk 19 is also lower than the height of the drainage channel. The large flocs discharged from the drainage channel will come into contact with the rare earth disk 19. The magnetic material in the flocs will be attracted to the rare earth disk 19 by the magnetic force of the rare earth disk 19, so that the flocs are attracted to the rare earth disk 19.

[0085] The rare-earth magnetic disk 19 is equipped with several rare-earth magnets arranged in a ring array. Large flocs enter the adsorption tank through the drainage channel, while small flocs can enter the adsorption tank 18 through the diversion hole 7. The diversion hole 7 and the drainage channel achieve the diversion of flocs of different sizes, ensuring that flocs are present at different heights within the adsorption tank 18, resulting in a more uniform vertical distribution of the flocs. This more uniform vertical distribution of the flocs prevents a large number of flocs from concentrating in one place before passing through the rare-earth magnetic disk. Since the adsorption capacity of one area of ​​the rare-earth magnetic disk is limited, if the adsorption limit of the disk is exceeded, the remaining flocs cannot be adsorbed and enter the downstream process, leading to poor wastewater purification. However, with the diversion hole 7 and the drainage channel working together, the distribution of flocs can be made more uniform.

[0086] Furthermore, because the rare earth magnets are distributed in a ring array, when the flocs flow from one side of the rare earth disk to the other, the straight-line distance traversed by the flocs through the adsorption region of the rare earth disk in the radial direction from the center is 2x, and the straight-line distance within the adsorption range of the rare earth magnets when passing through the lower part of the rare earth disk is y. Figure 10 As can be seen intuitively, y is much greater than 2x. Therefore, when large flocs pass through the lower half of the rare earth disk, the distance between them within the adsorption range of the rare earth magnets is longer, and the time they are adsorbed is longer. This can improve the success rate of the rare earth disk in adsorbing large flocs, thereby improving the wastewater purification effect.

[0087] The bottom of the adsorption tank 18 has a concave region with an arc-shaped cross-section, and the lower half of the rare earth disk is located within this concave region. When large flocs enter the concave region, they need to flow upwards to leave under the influence of water flow, a process requiring them to overcome gravity. Therefore, under gravity, it is more difficult for large flocs to leave the concave region, resulting in a longer contact time with the rare earth disk and thus a better adsorption effect. The flow space 17, the drainage jet pipe 15, and the drainage channel work together to guide the large flocs from the drainage channel into the drainage tank 18. Upon entering the drainage tank, the large flocs are located at the bottom of the liquid and will flow with the liquid to the concave region, increasing the probability of large flocs entering the concave region, prolonging the contact time between the large flocs and the rare earth disk, increasing the probability of large flocs being adsorbed, and thus improving the wastewater purification effect.

Claims

1. An inlet tank for a rare earth disk separation and purification device, characterized in that, It includes a pool body, an inlet pipe, and inlet branch pipes. The inlet pipe is installed inside the pool body, and several inlet branch pipes are installed on the side wall of the inlet pipe. The outlet end of the inlet branch pipe faces the bottom of the pool body.

2. The water inlet tank according to claim 1, characterized in that, The axis of the water inlet pipe is parallel to the axis of the rare earth disk of the rare earth disk separation and purification device, and each water inlet branch pipe is set along the axis of the water inlet pipe.

3. The inlet tank according to claim 2, characterized in that, Along the direction of water flow in the inlet pipe, the diameter of each inlet branch pipe increases progressively.

4. The water inlet tank according to claim 1, characterized in that, Each water inlet branch pipe has its axis set vertically. A support is provided inside the pool. The end of each water inlet branch pipe is connected to the support, which is used to support the water inlet branch pipe.

5. The water inlet tank according to claim 4, characterized in that, The support is connected to the bottom of the pool.

6. The water inlet tank according to claim 5, characterized in that, The support includes a support plate, which is vertically arranged. The bottom of the support plate is connected to the bottom of the pool body, and the top of the support plate is connected to the end of the water inlet branch pipe.

7. The water inlet tank according to claim 1, characterized in that, An opening is provided on one side of the pool body, and a flow divider is provided in the opening, with multiple flow divider holes provided in the flow divider.

8. The water inlet tank according to claim 7, characterized in that, The opening is also equipped with a filter screen, and there is a gap between the filter screen and the diversion plate. The filter screen is located on the diversion plate near the water inlet pipe.

9. The inlet tank according to claim 8, characterized in that, The bottom of the opening is provided with a support and a flow-guiding jet pipe. The flow divider is connected to the support, and the support creates a gap between the bottom side of the flow divider and the bottom of the opening. The flow-guiding jet pipe is located on the side of the support near the filter screen, and the flow-guiding jet pipe has a jet hole on the side near the support.

10. A rare earth disk separation and purification device, characterized in that, Includes the inlet pool as described in any one of claims 1-9.

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