Iron impurities magnetic adsorption treatment device

Abstract

The invention relates to the technical field of steel plate coating pretreatment, and discloses an iron impurity magnetic adsorption treatment device, comprising a sedimentation tank, a de-impurity chain, and a driving shaft. The driving shaft is arranged on the top of the sedimentation tank, a rotating shaft is arranged on the bottom of the sedimentation tank, a de-impurity chain is rotatably connected between the rotating shaft and the driving shaft, a plurality of cylindrical tube sponges are equidistantly and coaxially rotatably connected to the de-impurity chain, a cylindrical magnetic ring is coaxially fixedly arranged on the inner wall of the tube sponge, a plurality of flexible magnetic strips are also embedded in the tube sponge, a scraper is also arranged between the sedimentation tank and the driving shaft, and scraper holes corresponding to the de-impurity chain are opened on the scraper. The invention captures and adsorbs suspended impurities and iron-containing impurities in wastewater through the rotating motion of the de-impurity chain, thereby improving water quality, the multi-segment tube sponges provide a larger surface area, enhance the de-impurity effect, and realize automatic removal and discharge of impurities through continuous rotating motion and scraper hole design, thereby ensuring stable and efficient operation of the system and reducing shutdown and maintenance frequency.

Description

Technical Field

[0001] The invention relates to the technical field of steel plate coating pretreatment, in particular to a device for magnetic adsorption treatment of iron impurities. Background Art

[0002] During the processing of aluminum zinc or aluminum zinc magnesium plating on steel plates, it is necessary to go through spraying, alkaline brush degreasing, electrolytic degreasing and brushing, and finally three water washing processes. Brushing is a crucial pretreatment step, which ensures the purity of the steel plate surface, thereby ensuring the quality and adhesion of the coating. The wastewater and sludge generated during the roller brush cleaning process contain impurities such as iron, which need to be treated and disposed of through appropriate measures to reduce the impact on subsequent processes and the environment.

[0003] However, the capture and adsorption efficiency of suspended impurities and sludge in water in traditional sedimentation tanks is low, and the wastewater treatment effect is not good. At the same time, the sedimentation tank lacks an automatic cleaning mechanism. A large amount of foam will accumulate on the surface of the wastewater after long-term operation of the sedimentation tank, and regular shutdown for cleaning and maintenance is required, which affects the continuous operation and treatment efficiency of the system. In addition, there is no special recovery and treatment mechanism for iron impurities in the sedimentation tank, and iron impurities are difficult to be effectively removed in the water. Summary of the invention

[0004] (I) Technical problems solved: In view of the shortcomings of the prior art, the present invention provides a magnetic adsorption treatment device for iron impurities, which has the advantages of efficiently adsorbing and removing suspended impurities and iron impurities in wastewater, providing a larger contact surface area, and improving water quality. It solves the problem of low adsorption efficiency and lack of special iron impurity removal in traditional sedimentation tanks.

[0005] (II) Technical solution: In order to achieve the above-mentioned efficient adsorption and removal of suspended impurities and iron impurities in wastewater, provide a larger contact surface area, and improve water quality, the present invention provides the following technical solution: an iron impurity magnetic adsorption treatment device, comprising a sedimentation tank, a de-impurity chain, and a drive shaft, wherein the drive shaft is arranged above the sedimentation tank, a rotating shaft is arranged at the bottom of the sedimentation tank, the de-impurity chain is rotatably connected between the rotating shaft and the drive shaft, a plurality of cylindrical tube sponges are equidistantly and coaxially rotatably connected to the de-impurity chain, a cylindrical magnetic ring is coaxially fixedly arranged on the inner wall of the tube sponge, and a plurality of flexible magnetic strips are equidistantly embedded in the tube sponge along its circumferential direction; the magnetic ring and the flexible magnetic strip attract the iron impurities in the sedimentation tank to adhere to the tube sponge; a scraper is also arranged between the sedimentation tank and the drive shaft, and a scraper hole corresponding to the de-impurity chain is opened on the scraper; when the tube sponge passes through the scraper hole, the scraper hole scrapes off the impurities attached to the tube sponge.

[0006] Preferably, the scraping hole diameter is smaller than the outer diameter of the tube sponge and larger than the diameter of the magnetic ring, and the scraper is inclined toward the outside of the sedimentation tank.

[0007] Preferably, a support frame is provided between the driving shaft and the sedimentation tank, the bottom of the support frame is fixedly mounted on the bottom of the sedimentation tank, the driving shaft is rotatably mounted on the support frame, and both ends of the scraper are fixedly assembled on the support frame.

[0008] Preferably, a plurality of groups of the impurity removal chains are equidistantly arranged between the rotary shaft and the drive shaft along the axial direction of the drive shaft, a plurality of the scraping holes are provided, and the plurality of the scraping holes correspond to the plurality of groups of the impurity removal chains.

[0009] Preferably, several groups of stators are coaxially arranged below the several groups of scraping holes, and both ends of the several groups of stators are fixedly arranged on the support frame. A plurality of electromagnetic coils are installed in the stator, and the electromagnetic coils are arranged in a multi-pole structure. The inner diameter of the stator is larger than the outer diameter of the tube sponge. When the tube sponge passes through the stator, the stator generates a magnetic field by controlling the electromagnetic coil, so that the magnetic ring is affected by the magnetic field and drives the tube sponge to rotate together. When the flexible magnetic strip rotates with the tube sponge, the flexible magnetic strip generates centrifugal force to pull the tube sponge to stretch outward.

[0010] Preferably, a bearing is provided between the magnetic ring and the impurity removal chain, and a sealing cover is fixedly provided at the bottom of the tube sponge.

[0011] Preferably, the outer surface of the tube sponge is corrugated, and the tube sponge is made of a flexible and absorbent sponge material.

[0012] (III) Beneficial effects: Compared with the prior art, the present invention provides a magnetic adsorption treatment device for iron impurities, which has the following beneficial effects: 1. The magnetic adsorption treatment device for iron impurities, through the coordinated use of a de-impurity chain structure, a tube sponge structure, and a magnetic ring structure, wherein the tube sponge can effectively capture and adsorb suspended impurities and sludge in the water, significantly reducing the impurity content of the wastewater in the sedimentation tank. At the same time, the internal magnetic ring and the flexible magnetic strip can generate a magnetic field to perform special magnetic adsorption on iron-containing impurities, thereby effectively capturing iron impurities in the wastewater, reducing the iron content, and improving the water quality. The design of multiple tube sponges provides a larger surface area for contact with the wastewater, which can capture and adsorb more impurities and sludge, and improve the de-impurity effect. The tube sponge rotates with the de-impurity chain to realize a continuous impurity adsorption and removal process. This continuous operation mechanism can ensure stable and efficient operation of the system, reduce downtime and maintenance frequency, and through the scraping hole design, the tube sponge will be squeezed when passing through the scraping hole, and the impurities inside and on the surface will be effectively removed and discharged.

[0013] 2. The magnetic adsorption treatment device for iron impurities uses a stator structure, a magnetic ring structure, and a flexible magnetic strip structure. By energizing the electromagnetic coil installed in the stator to generate a magnetic field, when the tube sponge passes through the stator, the magnetic ring will be affected by the magnetic field and rotate. When the tube sponge rotates, since a flexible magnetic strip is arranged inside it, centrifugal force will be generated when the flexible magnetic strip rotates. The centrifugal force will pull the tube sponge around the flexible magnetic strip to stretch outward, thereby achieving the stretching of the tube sponge. This recovery mechanism ensures that the tube sponge can return to its original shape after each cleaning. The tube sponge It can stretch evenly, thereby maximizing the contact area with the wastewater. This design ensures that each section of the tube sponge can fully participate in the wastewater treatment process, thereby improving the overall adsorption efficiency. At the same time, because the tube sponge can quickly return to its original state, it reduces material fatigue and wear caused by long-term compression, thereby extending the service life of the tube sponge. The use of electromagnetic coils achieves the stretching of the tube sponge through the action of the magnetic field, which has lower energy consumption and a simpler structure than mechanical methods. When controlling multiple tube sponges on the same impurity removal chain, only one stator is needed to realize the rotation of multiple tube sponges.

[0014] 3. The magnetic adsorption treatment device for iron impurities uses a stator structure and a magnetic ring structure in combination. When the tube sponge passes through the stator, it will have a certain rotation speed. When the tube sponge rotates and enters the wastewater in the sedimentation tank, it can generate a certain vortex in the wastewater around it. The flow generated by this vortex increases the relative speed between the surface of the tube sponge and the impurities in the wastewater, reduces the thickness of the boundary layer, makes more wastewater contact with the tube sponge, improves the efficiency of impurities transferring to the surface of the tube sponge, makes impurities easier to be adsorbed, and through the generation of vortices, the impurities in the wastewater will be continuously suspended, reducing the probability of impurities being deposited at the bottom of the sedimentation tank, making it easier to adsorb impurities. The impurity removal efficiency of the entire system is higher, and a large amount of floating foam impurities usually appear on the surface of the wastewater in the sedimentation tank. The formation of these floating foam impurities is due to the fact that the surfactant used in the process of cleaning the steel plate will enter the treatment system with the wastewater. When this device is used, since the tube sponge enters the wastewater at a certain rotation speed, the vortex and strong disturbance generated can destroy the structure of the bubbles, causing the bubbles to burst, thereby reducing the formation of floating foam, and the rotation of the tube sponge will produce an obvious stirring effect, which can bring the floating foam on the surface of the wastewater into the water body, disperse it in a larger water body range, and reduce the gathering of floating foam on the water surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the magnetic adsorption treatment device for iron impurities in the present invention.

[0016] Figure 2 It is a structural front view of the magnetic adsorption treatment device for iron impurities in the present invention.

[0017] Figure 3 It is a structural side view of the magnetic adsorption treatment device for iron impurities in the present invention.

[0018] Figure 4 It is a top view of the structure of the magnetic adsorption treatment device for iron impurities in the present invention.

[0019] Figure 5 for Figure 4 AA section view.

[0020] Figure 6 for Figure 4 Middle BB section view.

[0021] Figure 7 for Figure 6 A partial enlarged view of M in the middle.

[0022] Figure 8 It is a side sectional view of the tube sponge structure in the present invention.

[0023] Fig. 9 It is a top sectional view of the tube sponge structure in the present invention.

[0024] Fig.10 This is a schematic diagram of the corrugated surface of the tube sponge structure in the present invention.

[0025] In the figure: 1. sedimentation tank; 2. driving shaft; 3. rotating shaft; 4. supporting frame; 5. scraper; 6. scraper hole; 7. impurity removal chain; 8. tube sponge; 81. magnetic ring; 82. flexible magnetic strip; 83. sealing cover; 9. stator. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9, an iron impurity magnetic adsorption treatment device includes a sedimentation tank 1, a de-impurity chain 7, and a driving shaft 2. The driving shaft 2 is arranged above the sedimentation tank 1. The driving shaft 2 is the power source of the device. The rotation of the driving shaft 2 can drive the movement of the de-impurity chain 7 and the tube sponge 8. Being arranged at the top can facilitate connection with a drive motor or other power device, reduce the complexity of the mechanical structure, and facilitate maintenance and adjustment. A rotating shaft 3 is arranged at the bottom of the sedimentation tank 1, and the rotating shaft 3 is used in conjunction with the driving shaft 2 to form a complete transmission system. The rotating shaft 3 can provide stable support and guiding effects to ensure that the de-impurity chain 7 can operate stably in the sedimentation tank 1 without deviation or jamming.

[0028] See also Figure 1 , Figure 4 , Figure 5 and Figure 6 The impurity removal chain 7 connects the driving shaft 2 and the rotating shaft 3 to form a closed circulation path. A number of cylindrical tube sponges 8 are equidistantly coaxially nested and rotatably connected on the impurity removal chain 7, and the tube sponges 8 can rotate with the impurity removal chain 7. Through this design, the tube sponges 8 can rotate in the sedimentation tank 1 to achieve a continuous iron impurity adsorption and removal process. This can improve the processing efficiency of the system and reduce manual intervention.

[0029] See also Figure 7 , Figure 8 and Fig. 9 A cylindrical magnetic ring 81 is coaxially fixed on the inner wall of the tube sponge 8. The magnetic ring 81 can generate a strong magnetic field to magnetically adsorb iron impurities. Placing the magnetic ring 81 on the inner wall of the tube sponge 8 can ensure that the magnetic field is evenly distributed and increase the adsorption effect of iron impurities. The magnetic ring 81 is coaxially fixed to avoid changes in the magnetic field position caused by rotation, thereby ensuring the stability of the adsorption effect. The materials used for the magnetic ring 81 include neodymium iron boron, samarium cobalt, ferrite and aluminum nickel cobalt. The tube sponge 8 is also equidistantly embedded with a number of flexible magnetic strips 82 along its circumferential direction. The flexible magnetic strips 82 can generate an auxiliary magnetic field to enhance the adsorption capacity of iron impurities. Since the flexible magnetic strip 82 can rotate with the tube sponge 8 and generate centrifugal force, this design can quickly stretch the tube sponge 8 to restore its original state after being squeezed, ensuring that the adsorption area of ​​the tube sponge 8 is maximized and improving the overall processing efficiency; the magnetic ring 81 and the flexible magnetic strip 82 attract the iron impurities in the sedimentation tank 1 to adhere to the tube sponge 8. The iron impurities are magnetic, and the magnetic ring 81 and the flexible magnetic strip 82 can generate a magnetic field to magnetically adsorb these iron impurities. Through this design, the iron impurities will be attracted by the magnetic field and adhere to the surface and inside of the tube sponge 8, thereby effectively reducing the iron impurity content in the wastewater. This magnetic adsorption method can significantly improve the impurity removal efficiency and specifically treat iron impurities.

[0030] See also Figure 7A scraper 5 is also provided between the sedimentation tank 1 and the driving shaft 2. The scraper 5 is provided with scraping holes 6 corresponding to the impurity removal chain 7. The function of the scraper 5 is to remove impurities attached to the surface of the tube sponge 8. When the tube sponge 8 passes through the scraping holes 6, the scraping holes 6 will scrape off the impurities attached to the surface of the tube sponge 8. This design ensures that the impurity removal chain 7 can continue to operate efficiently and will not reduce the adsorption effect due to the accumulation of impurities; when the tube sponge 8 passes through the scraping holes 6, the scraping holes 6 will scrape off the impurities attached to the tube sponge 8. Scraping off the attached impurities through the scraping holes 6 can ensure that the tube sponge 8 can re-absorb new impurities during each cycle and maintain efficient adsorption capacity. The scraped impurities will be discharged along the scraper 5 to prevent the impurities from entering the sedimentation tank 1 again, thereby ensuring the continuity of the treatment effect.

[0031] See also Figure 6 and Figure 7 The scraper hole 6 has a diameter smaller than the outer diameter of the tube sponge 8 and larger than the diameter of the magnetic ring 81, and the scraper 5 is tilted toward the outside of the sedimentation tank 1. The design that the scraper hole 6 has a diameter smaller than the outer diameter of the tube sponge 8 and larger than the diameter of the magnetic ring 81 ensures that the tube sponge 8 will be squeezed when passing through the scraper hole 6, so that impurities attached to the surface and inside of the tube sponge 8 can be effectively removed. The scraper 5 is tilted toward the outside of the sedimentation tank 1, which helps the scraped impurities to be discharged smoothly along the scraper 5 and will not fall back into the sedimentation tank 1, further improving the impurity removal efficiency and the working stability of the device.

[0032] See also Figure 1 A support frame 4 is provided between the drive shaft 2 and the sedimentation tank 1, the bottom of the support frame 4 is fixedly mounted on the bottom of the sedimentation tank 1, and the drive shaft 2 is rotatably mounted on the support frame 4. Both ends of the scraper 5 are fixedly assembled on the support frame 4. The support frame 4 provides stable mechanical support to ensure that the drive shaft 2 can operate stably. The bottom of the support frame 4 is fixedly mounted on the bottom of the sedimentation tank 1, which can reduce the vibration and deviation of the drive shaft 2 and improve the stability and reliability of the transmission system. The drive shaft 2 is rotatably mounted on the support frame 4, so that the drive shaft 2 can rotate freely, drive the circulation movement of the impurity removal chain 7 and the tube sponge 8, and ensure the continuous and efficient operation of the system. The impurity removal chain 7 is equidistantly arranged in a plurality of groups along the axial direction of the drive shaft 2 between the rotary shaft 3 and the drive shaft 2. By dividing the impurity removal chain 7 into a plurality of groups, the coverage area of ​​the tube sponge 8 in the sedimentation tank 1 can be increased, thereby increasing the contact surface area with the wastewater. This helps to improve the adsorption efficiency of impurities and sludge, making the impurity removal effect more significant.

[0033] See also Figure 5 , Figure 6 and Figure 7There are a plurality of scraping holes 6, and the plurality of scraping holes 6 correspond to a plurality of groups of impurity removal chains 7. Each group of impurity removal chains 7 corresponds to a scraping hole 6, which can ensure that each group of tube sponges 8 can pass through the scraping hole 6 to remove impurities after leaving the sedimentation tank 1. In this way, each group of tube sponges 8 can be evenly treated in the process of removing impurities, thereby improving the impurity removal efficiency of the overall system.

[0034] See also Figure 6 and Figure 7, several groups of stators 9 are coaxially arranged below several groups of scraping holes 6, and the two ends of several groups of stators 9 are fixedly arranged on the support frame 4. The stator 9 is arranged to stretch the tube sponge 8 through the magnetic field generated by the electromagnetic coil after the tube sponge 8 passes through the scraping hole 6, so as to ensure that the tube sponge 8 returns to its original shape before entering the sedimentation tank 1. This can maximize the contact area between the tube sponge 8 and the wastewater, thereby improving the impurity removal effect. Multiple electromagnetic coils are installed in the stator 9, and the electromagnetic coils are arranged in a multi-pole structure. The electromagnetic coils of the multi-pole structure can generate a more uniform and stronger magnetic field, so that the magnetic force on the magnetic ring 81 is more uniform, which helps the effective rotation and stretching of the tube sponge 8. At the same time, the multi-pole structure can control the direction and intensity of the magnetic field, thereby achieving more precise control. The inner diameter of the stator 9 is larger than the outer diameter of the tube sponge 8, and the inner diameter of the stator 9 is larger than the outer diameter of the tube sponge 8, which can ensure that the tube sponge 8 is not physically hindered when passing through the stator 9, reducing friction and wear. At the same time, such a design can also ensure that the magnetic field can fully act on the magnetic ring 81, so as to achieve effective rotation and stretching of the tube sponge 8; when the tube sponge 8 passes through the stator 9, the stator 9 generates a magnetic field by controlling the electromagnetic coil, so that the magnetic ring 81 is affected by the magnetic field and drives the tube sponge 8 to rotate together, and the magnetic field generated by the electromagnetic coil acts on the magnetic ring 81, so that the magnetic ring 81 drives the tube sponge 8 to rotate. This design can make the tube sponge 8 generate a vortex in the sedimentation tank 1, enhance the relative movement between impurities and the tube sponge 8, and improve the adsorption efficiency of impurities. The specific principle is that a magnetic field will be generated after the electromagnetic coil is energized, and the strength and direction of this magnetic field are determined by the current in the coil. The multiple electromagnetic coils in the stator 9 are arranged in a multi-pole structure. By controlling the current of these electromagnetic coils, a rotating magnetic field can be formed in space. The magnetic ring 81 is made of a magnetic material and can respond to an external magnetic field. When the electromagnetic coil in the stator 9 generates a rotating magnetic field, the magnetic ring 81 will be affected by this rotating magnetic field. Since the magnetic ring 81 is fixed inside the tube sponge 8, this force will drive the entire tube sponge 8 to rotate together; when the flexible magnetic strip 82 rotates with the tube sponge 8, the flexible magnetic strip 82 generates centrifugal force to pull the tube sponge 8 to stretch outward. The centrifugal force generated by the rotation of the flexible magnetic strip 82 will cause the tube sponge 8 to stretch outward, ensuring that the tube sponge 8 can maintain a good shape and contact surface during the rotation process, which helps to maximize its contact area with the wastewater, thereby improving the impurity removal effect. At the same time, this design can also reduce material fatigue and wear of the tube sponge 8 and extend its service life. A bearing is provided between the magnetic ring 81 and the impurity removal chain 7, and the design of the bearing can achieve smooth rotation between the magnetic ring 81 and the impurity removal chain 7. This helps to reduce friction and wear and extend the service life of the equipment. At the same time, the bearing can enable the tube sponge 8 to rotate stably driven by the impurity removal chain 7, thereby improving work efficiency and adsorption effect. A sealing cover 83 is fixedly provided at the bottom of the tube sponge 8. The sealing cover 83 is designed mainly to prevent the internal magnetic ring 81 and the flexible magnetic strip 82 from being corroded by external water and impurities, so as to ensure their normal function and long-term use.In addition, the sealing cover 83 can prevent the internal structure from loosening and maintain the stability of the tube sponge 8. Please refer to. Fig.10 The outer surface of the tube sponge 8 is corrugated, and the corrugated surface design can increase the surface area of ​​the tube sponge 8, thereby increasing its contact area with the wastewater. This can enhance the adsorption effect and capture more impurities and sludge. At the same time, the corrugated surface can also produce a stronger stirring effect and improve the adsorption efficiency. The tube sponge 8 is made of a flexible and absorbent sponge material. The flexible material can adapt to different pressure changes and maintain its shape and function. The absorbent sponge material can effectively capture and absorb suspended impurities and sludge in the water, thereby improving the impurity removal effect. The flexible material can also reduce damage caused by mechanical pressure and extend its service life. Among them, the flexible material specifically adopts a polyurethane sponge, a silicone sponge, or an activated carbon sponge.

[0035] Working principle: wastewater containing iron impurities is introduced into the sedimentation tank 1. When the device is used to remove impurities from the sedimentation tank 1, the impurity removal chain 7 is driven to rotate by the rotation of the driving shaft 2. During the movement of the impurity removal chain 7, the tube sponge 8 will enter the sedimentation tank 1. Since the tube sponge 8 is made of a flexible and absorbent sponge material. This material itself has a strong adsorption capacity and can effectively capture and absorb suspended impurities and sludge in the water, thereby effectively reducing the impurity and sludge content of the wastewater in the sedimentation tank 1; and since a magnetic ring 81 and a flexible magnetic strip 82 are coaxially fixedly arranged in the tube sponge 8, the magnetic ring 81 and the flexible magnetic strip 82 will generate a magnetic field, which will produce magnetic adsorption on iron-containing impurities, and the iron impurities will be attracted by the magnetic field and adhere to the surface of the tube sponge 8, thereby effectively reducing the content of iron impurities in the wastewater in the sedimentation tank 1. Then, the tube sponge 8 with a large amount of impurities attached to the surface follows the impurity removal chain 7 to perform a rotary motion to leave the sedimentation tank 1 and reach the scraper 5 position and pass through the scraper hole 6. When the tube sponge 8 passes through the scraper hole 6, the scraper hole 6 will squeeze the tube sponge 8 because its diameter is smaller than the outer diameter of the tube sponge 8 and larger than the diameter of the magnetic ring 81, so that the impurities inside are squeezed out and the impurities attached to its surface are scraped off. The scraped impurities will be discharged along the scraper 5. The structure is designed with multiple tube sponges 8 so that the entire device has a larger surface area in contact with the wastewater in the sedimentation tank 1, so that more impurities and sludge can be captured and adsorbed, and because the magnetic ring 81 and the flexible magnetic strip 82 are provided in the tube sponge 8, it can produce a magnetic adsorption effect on the iron impurities in the wastewater. Due to the attraction of the magnetic field, the iron impurities will adhere to the surface and inside of the tube sponge 8, thereby effectively reducing the iron content in the wastewater. The tube sponge 8 in this structure can effectively capture and adsorb suspended impurities and sludge in the water, significantly reducing the impurity content of the wastewater in the sedimentation tank 1. At the same time, the internal magnetic ring 81 and the flexible magnetic strip 82 can generate a magnetic field to perform special magnetic adsorption on iron-containing impurities. This can effectively capture iron impurities in the wastewater, reduce the iron content, and improve the water quality. The design of multiple tube sponges 8 provides a larger surface area for contact with the wastewater, which can capture and adsorb more impurities and sludge, and improve the impurity removal effect. The tube sponge 8 follows the impurity removal chain 7 to perform a rotary motion, realizing a continuous impurity adsorption and removal process. This continuous operation mechanism can ensure stable and efficient operation of the system, reducing downtime and maintenance frequency. And through the design of the scraping hole 6, the tube sponge 8 will be squeezed when passing through the scraping hole 6, and the impurities inside and on the surface will be effectively removed and discharged.

[0036] Among them, after the tube sponge 8 passes through the scraping hole 6 to remove impurities, it cannot quickly return to its original shape because it is squeezed by the scraping hole 6. By energizing the electromagnetic coil installed in the stator 9 to generate a magnetic field, when the tube sponge 8 passes through the stator 9, the magnetic ring 81 will be affected by the magnetic field and rotate. When the tube sponge 8 rotates, since the flexible magnetic strip 82 is arranged inside, the flexible magnetic strip 82 will generate centrifugal force when rotating. This centrifugal force will pull the tube sponge 8 around the flexible magnetic strip 82 to stretch outward, thereby achieving the stretching of the tube sponge 8. This recovery mechanism ensures that the tube sponge 8 can return to its original shape after each cleaning, and the tube sponge 8 can stretch evenly, thereby maximizing the contact area with the wastewater. This design ensures that each section of the tube sponge 8 can fully participate in the wastewater treatment process, thereby improving the overall adsorption efficiency. At the same time, since the tube sponge 8 can quickly return to its original state, the material fatigue and wear caused by long-term compression are reduced, and the service life of the tube sponge 8 is extended. In addition, the use of the electromagnetic coil realizes the expansion of the tube sponge 8 through the action of the magnetic field, which has lower energy consumption and a simpler structure than the mechanical method. When controlling multiple tube sponges 8 on the same impurity removal chain 7, only one stator 9 is needed to realize the rotation of multiple tube sponges 8.

[0037] And when the tube sponge 8 passes through the stator 9, it will have a certain rotation speed. When the tube sponge 8 rotates and enters the wastewater in the sedimentation tank 1, it can generate a certain vortex in the wastewater around it. The flow generated by this vortex increases the relative speed between the surface of the tube sponge 8 and the impurities in the wastewater, reduces the thickness of the boundary layer, makes more wastewater contact with the tube sponge 8, improves the efficiency of impurities transferred to the surface of the tube sponge 8, and makes impurities easier to be adsorbed. And through the generation of vortices, impurities in the wastewater will be continuously suspended, reducing the probability of impurities depositing at the bottom of the sedimentation tank 1, making the impurity removal efficiency of the entire system higher. Moreover, a large amount of floating foam impurities usually appear on the surface of the wastewater in the sedimentation tank 1. The formation of these floating foam impurities is that the surfactant used in the process of cleaning the steel plate will enter the treatment system along with the wastewater. When the present device is used, since the tube sponge 8 enters the wastewater at a certain rotation speed, the generated vortex and strong disturbance can destroy the structure of the bubbles, causing the bubbles to burst, thereby reducing the formation of floating foam, and the rotation of the tube sponge 8 will produce an obvious stirring effect, which can bring the floating foam on the surface of the wastewater into the water body, disperse it in a larger water body range, and reduce the gathering of floating foam on the water surface.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An iron impurity magnetic adsorption treatment device, comprising a sedimentation tank (1), an impurity removal chain (7), and a drive shaft (2), wherein the drive shaft (2) is arranged above the sedimentation tank (1), a support frame (4) is arranged between the drive shaft (2) and the sedimentation tank (1), a rotating shaft (3) is arranged at the bottom of the sedimentation tank (1), and the impurity removal chain (7) is rotatably connected between the rotating shaft (3) and the drive shaft (2), characterized in that: The impurity removal chain (7) is equidistantly and coaxially connected to a plurality of cylindrical tube sponges (8), the inner wall of the tube sponge (8) is coaxially fixedly provided with a cylindrical magnetic ring (81), and the tube sponge (8) is also equidistantly embedded with a plurality of flexible magnetic strips (82) along its circumferential direction; the magnetic ring (81) and the flexible magnetic strips (82) attract iron impurities in the sedimentation tank (1) to adhere to the tube sponge (8); a scraper (5) is also provided between the sedimentation tank (1) and the drive shaft (2), and a scraper hole (6) corresponding to the impurity removal chain (7) is formed on the scraper (5); when the tube sponge (8) passes through the scraper hole (6), the scraper hole (6) scrapes off the impurities attached to the tube sponge (8); A plurality of groups of stators (9) are coaxially arranged below the plurality of groups of scraping holes (6). Both ends of the plurality of groups of stators (9) are fixedly arranged on the support frame (4). A plurality of electromagnetic coils are installed in the stator (9), and the electromagnetic coils are arranged in a multi-pole structure. The inner diameter of the stator (9) is larger than the outer diameter of the tube sponge (8). When the tube sponge (8) passes through the stator (9), the stator (9) generates a magnetic field by controlling the electromagnetic coils, so that the magnetic ring (81) is affected by the magnetic field and drives the tube sponge (8) to rotate together. When the flexible magnetic strip (82) rotates with the tube sponge (8), the flexible magnetic strip (82) generates a centrifugal force to pull the tube sponge (8) to stretch outward.

2. The iron impurity magnetic adsorption treatment device according to claim 1, characterized in that: The diameter of the scraping hole (6) is smaller than the outer diameter of the tube sponge (8) and larger than the diameter of the magnetic ring (81), and the scraper (5) is arranged to be inclined toward the outside of the sedimentation tank (1).

3. The iron impurity magnetic adsorption treatment device according to claim 1, characterized in that: The bottom of the support frame (4) is fixedly mounted on the bottom of the sedimentation tank (1), the drive shaft (2) is rotatably mounted on the support frame (4), and both ends of the scraper (5) are fixedly mounted on the support frame (4).

4. The magnetic adsorption treatment device for iron impurities according to any one of claims 1 to 3, characterized in that: A plurality of groups of the impurity removal chains (7) are equidistantly arranged between the rotary shaft (3) and the drive shaft (2) along the axial direction of the drive shaft (2), a plurality of the scraping holes (6) are provided, and a plurality of the scraping holes (6) and a plurality of groups of the impurity removal chains (7) correspond to each other.

5. The device for magnetic adsorption treatment of iron impurities according to any one of claims 1 to 3, characterized in that: A bearing is provided between the magnetic ring (81) and the impurity removal chain (7), and a sealing cover (83) is fixedly provided at the bottom of the tube sponge (8).

6. The device for magnetic adsorption treatment of iron impurities according to any one of claims 1 to 3, characterized in that: The outer surface of the tube sponge (8) is corrugated, and the tube sponge (8) is made of a flexible and absorbent sponge material.

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