Magnetic separation sewage treatment equipment

Abstract

The utility model discloses magnetic separation sewage treatment equipment, which relates to the technical field of sewage treatment equipment and comprises a treatment box, a rolling component and a separation box, a solution cavity is formed in the upper part in the treatment box, and an equipment cavity is formed in the lower part; a liquid discharge port is formed in the bottom of the solution cavity, and a valve is arranged at the liquid discharge port; the rolling assembly comprises a rotatable roller, the outer surface of the roller is magnetic, and the roller is rotationally arranged in the solution cavity; a solid waste discharge port is formed in the upper end of the side part of the treatment box, an inclined flow guide scraper is arranged at the solid waste discharge port, and the high end of the flow guide scraper is arranged close to the surface of the roller and is opposite to the rotating direction of the roller; the separation box is used for being fixedly arranged in an equipment cavity, and a rotating motor and a separation net cylinder are arranged in the separation box; the rotating motor is used for driving the separating mesh cylinder to rotate, and an upper opening of the separating mesh cylinder corresponds to the liquid lower discharge port. The separation efficiency is improved, and suspended matters with fine particles and small density can be treated.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment equipment technology, and in particular to a magnetic separation sewage treatment equipment. Background Technology

[0002] Industrial wastewater refers to polluted water and wastewater discharged during the production process. Some industrial wastewater often contains a large amount of magnetic pollutants. During water treatment, based on the force of the magnetic field on magnetic particles, magnetic and non-magnetic particles in the wastewater can be separated. Magnetic separation wastewater treatment equipment is often used to remove magnetic pollutants from such wastewater, achieving the phased goals of wastewater treatment and providing technical support for achieving effluent standards in wastewater treatment processes.

[0003] Although existing wastewater treatment devices can effectively perform magnetic separation, other impurities after magnetic separation are removed by sedimentation during use. This method of separation is not thorough enough, and the device is not suitable for treating fine, low-density suspended solids, resulting in low separation efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a magnetic separation wastewater treatment device to solve the problems existing in the prior art, improve separation efficiency, and facilitate the treatment of suspended solids with fine particles and low density.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a magnetic separation wastewater treatment device, including a treatment tank, a rolling assembly, and a separation tank. The treatment tank has a solution chamber at its upper inner part and an equipment chamber at its lower inner part. The bottom of the solution chamber has a liquid discharge port, and a valve is provided at the liquid discharge port. The solution chamber is used to hold wastewater and to add magnetic flocculant additives. The rolling assembly includes a rotatable drum with a magnetic outer surface. The drum is rotatably disposed within the solution chamber. A solid waste discharge port is provided at the upper side of the treatment tank. An inclined guide scraper is provided at the solid waste discharge port. The guide scraper has a high end and a low end. In the vertical direction, the high end is higher than the low end. The high end of the guide scraper is positioned near the surface of the drum, and this end of the guide scraper is opposite to the rotation direction of the drum. The separation tank is fixedly disposed within the equipment chamber. A rotary motor and a separation screen are provided within the separation tank. The rotary motor drives the separation screen to rotate, and the upper opening of the separation screen corresponds to the liquid discharge port.

[0007] Preferably, a platform plate and a magnetic separation shell are fixedly installed on the upper inner side of the processing tank; the platform plate is provided with the flow guide scraper; the upper end of the magnetic separation shell forms the solution cavity, and the lower end of the magnetic separation shell is provided with the liquid discharge port.

[0008] Preferably, at least one connecting frame extends downward from the lower end of the magnetic separation shell, and a fixed scraper is fixedly disposed on the connecting frame. The extending direction of the fixed scraper is the same as the length extending direction of the separation mesh cylinder, and one side of the fixed scraper is in contact with the inner wall of the separation mesh cylinder.

[0009] Preferably, the guide scraper includes a high end, a low end, and a rotating part; the rotating part is located between the high end and the low end, and in the vertical direction, the high end is higher than the low end; a rotating base is fixedly provided on the platform plate, and the rotating part is rotatably connected to the rotating base around a first axis, and the first axis is parallel to the rotation axis of the roller; the high end is used to be disposed near the surface of the roller; an elastic connector is also provided between the platform plate and the guide scraper, and the elastic connector can drive the high end of the guide scraper to keep it tightly attached to the surface of the roller.

[0010] Preferably, a compression spring is fixedly installed on the platform plate located on the side of the rotating base away from the roller, and the upper end of the compression spring is fixedly connected to the guide scraper.

[0011] Preferably, a fixing frame is fixedly provided at the lower end of the separation box, and the fixing frame is located inside the equipment cavity; the rotary motor is fixedly provided on the fixing frame, and the output shaft of the rotary motor extends into the separation box and is fixedly connected to a connector; the connector includes a stud and at least one positioning element; the stud is fixedly connected to the output shaft of the rotary motor; the lower end of the separation screen cylinder is provided with a threaded hole, and the stud is threadedly connected to the threaded hole; the separation screen cylinder is also provided with at least one snap-fit ​​hole, and the positioning element corresponds one-to-one with the snap-fit ​​hole, and the positioning element can position the protruding positioning part in the corresponding snap-fit ​​hole.

[0012] Preferably, the positioning element includes a locking block and a return spring; the output shaft of the rotary motor is fixedly provided with a mounting base, the stud is fixedly provided on the mounting base, and at least one sliding cavity is provided on the mounting base circumferentially to the stud; the locking block is slidably disposed in the sliding cavity along a first direction, the first direction being parallel to the axis of the stud; the first end of the locking block is located inside the sliding cavity, and the second end of the locking block is located outside the sliding cavity; the return spring is located inside the sliding cavity, and the return spring is located on the side of the first end of the locking block away from the separating mesh cylinder; the return spring can push the first end of the locking block to keep the second end of the locking block protruding outside the sliding cavity.

[0013] Preferably, a collection box is fixedly installed on the outer wall of the treatment box corresponding to the solid waste discharge outlet, and the lower end of the guide scraper is located above the opening above the collection box.

[0014] Preferably, the roller includes an inner cylinder, a magnet tube, and an outer protective cover; the magnet tube is magnetic and is fixedly sleeved outside the inner cylinder, and the outer protective cover is sleeved outside the magnet tube.

[0015] Preferably, the top of the processing tank is also provided with an openable protective cover, which allows the interior of the solution chamber to be seen when the protective cover is opened.

[0016] The present invention achieves the following technical advantages over the prior art:

[0017] The magnetic separation wastewater treatment equipment provided by this utility model adds wastewater and magnetic flocculants into a solution chamber, allowing the magnetic flocculants and magnetic particles in the wastewater to combine and form flocculent magnetic particles. A rotating, magnetic drum attracts these flocculent magnetic particles in the wastewater, adsorbing the magnetic waste onto its outer surface, and then scrapes them off the drum by a guide scraper. The magnetically separated wastewater is then introduced into the separation screen of the separation tank. Through the high-speed rotation of the separation screen, the wastewater inside is gradually discharged. The centrifugal force generated by the rotation drives the wastewater in the separation screen into the separation tank, while the impurity particles are intercepted on the inner wall of the separation screen. Centrifugal separation is used to further treat the magnetically separated wastewater, resulting in a more thorough separation and improved equipment separation efficiency. It is also beneficial for treating fine, low-density suspended solids.

[0018] Furthermore, the platform plate provides stable support and installation position for the guide scraper, ensuring that the guide scraper can be accurately positioned close to the drum surface, effectively scraping off and guiding the magnetic flocs adsorbed on the drum surface, thus ensuring the stability and reliability of solid waste discharge. The upper part of the magnetic separation shell forms a solution chamber, providing a relatively independent and closed space for the mixing of sewage and magnetic floc additives and the magnetic separation process. This helps to maintain a stable magnetic field environment within the solution chamber, prevent magnetic field leakage, improve the effect of the magnetic field on suspended solids in sewage, and enhance the efficiency and effectiveness of magnetic separation.

[0019] Furthermore, the fixed scraper adheres closely to the inner wall of the separating screen cylinder, continuously scraping away impurities and residual magnetic particles attached to its inner wall during the cylinder's rotation. This prevents these substances from accumulating on the cylinder wall, thus preventing the screen's mesh from becoming clogged. This ensures the separating screen cylinder can continuously perform solid-liquid separation at a high efficiency, allowing solid impurities in wastewater to be intercepted in a timely manner and liquid to pass smoothly through the screen cylinder and be discharged, maintaining the normal operation of the equipment. The fixed scraper also reduces the frequency of manual cleaning of the separating screen cylinder, lowering the labor and time costs of equipment maintenance. At the same time, because the separating screen cylinder can maintain a good working condition, the probability of needing to replace parts due to screen cylinder damage or clogging is reduced, further lowering the equipment's maintenance costs.

[0020] Furthermore, the elastic connector ensures that the high end of the guide scraper remains firmly in contact with the drum surface. Regardless of slight shape changes in the drum due to wear or other factors during rotation, or any errors in installation, the guide scraper maintains excellent contact with the drum surface, effectively scraping off the magnetic material adsorbed on the drum surface and improving the magnetic separation effect and efficiency. The guide scraper is rotatably connected to the rotating base via a rotating part around the first axis, giving it a degree of flexibility and self-adaptability. When the magnetic material on the drum surface is unevenly distributed, or when encountering large magnetic particles during scraping, the guide scraper, under the action of the elastic connector, can swing and adjust to a certain extent around the rotating part, better adapting to the drum surface conditions and ensuring smooth scraping, avoiding problems such as incomplete scraping or damage to the drum surface.

[0021] Furthermore, the compression spring provides continuous elasticity to the guide scraper, ensuring its upper end remains firmly in contact with the drum surface. This ensures that the guide scraper effectively removes magnetic materials and impurities adsorbed on the drum surface during drum rotation, preventing magnetic materials from re-mixing into the wastewater and improving the magnetic separation effect. During equipment operation, the guide scraper may be subjected to vibration and impact forces due to drum rotation and potential wastewater flow impacts. The compression spring acts as a buffer, absorbing and weakening these vibrations and impact forces, reducing mechanical damage to the guide scraper and rotating base, and extending the service life of the equipment.

[0022] Furthermore, the fixed frame at the lower end of the separation box provides a stable support foundation for the entire separation device, keeping it in a fixed position within the equipment cavity. This effectively resists external forces such as sewage flow and vibrations generated during equipment operation, ensuring the overall structural stability of the magnetic separation sewage treatment equipment and preventing the treatment effect from being affected by shaking or displacement. The threaded connection between the stud and the threaded hole at the lower end of the separation screen cylinder enables a tight connection between the output shaft of the rotary motor and the separation screen cylinder. The cooperation between the positioning element and the snap-fit ​​hole on the separation screen cylinder plays a role in precise positioning and preventing relative rotation between the stud and the threaded hole.

[0023] Furthermore, multiple positioning elements are distributed circumferentially along the stud, allowing for positioning of the separating screen cylinder from multiple directions. This effectively prevents circumferential offset or unstable rotation of the separating screen cylinder during rotation, resulting in more uniform and stable rotation and improving the reliability and separation efficiency of the equipment. The return spring not only pushes the locking block but also provides a certain buffering effect during equipment operation. When the separating screen cylinder experiences slight vibration or displacement due to the impact of sewage or other external forces during rotation, the return spring can absorb some energy through its elastic deformation, reducing the impact of vibration and impact on the connection parts, thereby protecting the various components of the equipment and extending its service life.

[0024] Furthermore, the collection box is designed to correspond to the solid waste discharge outlet, ensuring that solid waste discharged from the outlet accurately falls into the collection box, preventing solid waste from scattering around the equipment, maintaining the cleanliness of the surrounding environment, facilitating the unified treatment and disposal of solid waste, and preventing secondary pollution caused by indiscriminate discharge of solid waste.

[0025] Furthermore, the outer protective cover is installed on the outside of the magnet tube to prevent damage to the magnet tube from external factors, such as scratches and collisions to the surface of the magnet tube that may be present in sewage. This extends the service life of the magnet tube, ensures the stability of the magnet's magnetism and performance, reduces the frequency of replacement due to magnet tube damage, and lowers the maintenance cost of the equipment.

[0026] Furthermore, operators can directly observe the operation of the magnetic separation components inside the solution chamber by opening the protective cover, such as whether the magnet tube and separation screen are working properly, and whether there are any problems such as damaged, loose, or deformed components. This facilitates the timely detection of potential faults, enabling the implementation of corresponding maintenance measures to prevent the fault from escalating further and affecting the wastewater treatment effect and the normal operation of the equipment. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the overall structure of the magnetic separation wastewater treatment equipment provided by this utility model;

[0029] Figure 2 This is a schematic diagram of the separation box in the magnetic separation wastewater treatment equipment provided by this utility model;

[0030] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0031] Figure 4 A schematic diagram of the structure of the drum in the magnetic separation sewage treatment equipment provided by this utility model;

[0032] Figure 5 A schematic diagram of the guiding scraper in the magnetic separation wastewater treatment equipment provided by this utility model;

[0033] Figure 6 A schematic diagram of the transmission mechanism in the magnetic separation sewage treatment equipment provided by this utility model.

[0034] In the picture:

[0035] 10-Processing box; 11-Platform plate; 12-Magnetic separation shell; 13-Liquid drain port; 14-Connecting frame; 15-Fixed scraper; 16-Rotating base; 17-Compression spring; 18-Collection box; 19-Protective cover;

[0036] 20-Guide scraper;

[0037] 30-Drum; 31-Inner cylinder; 32-Magnet tube; 33-Outer protective cover; 34-Three-phase asynchronous motor; 35-Drive pulley; 36-Transmission belt; 37-Pulley;

[0038] 40-Separation box; 41-Rotating motor; 42-Separation mesh cylinder; 43-Fixing frame; 44-Mounting base; 45-Stud; 46-Clamping block; 47-Reset spring;

[0039] 50-Water pipe;

[0040] 60 - Drain pipe. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] The purpose of this invention is to provide a magnetic separation wastewater treatment device to solve the problems existing in the prior art, improve separation efficiency, and facilitate the treatment of fine and low-density suspended solids.

[0043] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] Example 1

[0045] This embodiment provides a magnetic separation wastewater treatment device, mainly targeting magnetic pollutants, such as... Figures 1-6 As shown, the system includes a treatment tank 10, a rolling assembly, and a separation tank 40. The treatment tank 10 has a solution chamber at its upper inner part and a device chamber at its lower inner part. The bottom of the solution chamber has a liquid outlet 13, which is equipped with a valve. The solution chamber is used to hold wastewater and to add magnetic flocculant additives. The rolling assembly includes a rotatable roller 30 with a magnetic outer surface. The roller 30 is rotatably positioned within the solution chamber. A solid waste outlet is located at the upper side of the treatment tank 10. An inclined guide scraper 20 is installed at the solid waste outlet. The guide scraper 20 has a high end and a low end, with the high end higher than the low end in the vertical direction. The high end of the guide scraper 20 is positioned near the surface of the roller 30, and this end (i.e., the high end) is opposite to the rotation direction of the roller 30 (e.g., as shown in the diagram). Figure 1 In the middle, the drum 30 rotates counterclockwise; the separation box 40 is used to be fixedly installed in the equipment cavity, and the separation box 40 is equipped with a rotary motor 41 and a separation screen 42; the rotary motor 41 is used to drive the separation screen 42 to rotate, and the upper opening of the separation screen 42 corresponds to the liquid lower discharge port 13.

[0046] By adding both wastewater and magnetic flocculant into the solution chamber, the magnetic flocculant and the magnetic particles in the wastewater combine to form flocculent magnetic particles. The rotating and magnetic drum 30 attracts the flocculent magnetic particles in the wastewater, adsorbing the magnetic waste onto its outer surface. The guide scraper 20 then scrapes the magnetic waste off the drum 30. The magnetically separated wastewater is then introduced into the separation screen 42 of the separation tank 40. The high-speed rotation of the separation screen 42 gradually discharges the wastewater inside. The centrifugal force generated by the rotation discharges the wastewater from the separation screen 42 into the separation tank 40. The impurity particles are intercepted on the inner wall of the separation screen 42. The centrifugal separation method further treats the magnetically separated wastewater, making the separation more thorough and improving the separation efficiency of the equipment. It is also beneficial for treating fine and low-density suspended solids.

[0047] Specifically, based on the force of the magnetic field on magnetic particles, magnetic and non-magnetic particles in wastewater can be separated, and magnetic pollutants in sewage can be removed. For other non-magnetic impurities and pollutants, centrifugal force is mainly used for separation.

[0048] The following are the settings instructions for the processing box 10:

[0049] Specifically, the treatment tank 10 is also equipped with a water pipe 50 for adding wastewater into the solution chamber.

[0050] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 and Figure 6 As shown, a platform plate 11 and a magnetic separation shell 12 are fixedly installed on the upper inner side of the treatment tank 10; a guide scraper 20 is installed on the platform plate 11; a solution chamber is formed inside the upper end of the magnetic separation shell 12, and a liquid discharge port 13 is provided at the lower end of the magnetic separation shell 12. The platform plate 11 provides stable support and installation position for the guide scraper 20, ensuring that the guide scraper 20 can be accurately positioned near the surface of the drum 30, so that it can effectively scrape off and guide the magnetic flocs adsorbed on the surface of the drum 30, ensuring the stability and reliability of solid waste discharge; the solution chamber formed inside the upper end of the magnetic separation shell 12 provides a relatively independent and closed space for the mixing of sewage and magnetic floc additives and the magnetic separation process. This helps to maintain the stability of the magnetic field environment in the solution chamber, prevent magnetic field leakage, improve the effect of the magnetic field on suspended solids in sewage, and enhance the efficiency and effect of magnetic separation.

[0051] Specifically, the two ends of the roller 30 are fixedly connected to rotating shafts, one of which extends out of the processing box 10 and is fixedly connected to a pulley 37. A three-phase asynchronous motor 34 is also fixedly installed on the outer wall of the processing box 10, and the drive wheel 35 at its output end is driven by the pulley 37 through the transmission belt 36.

[0052] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 4 As shown, the drum 30 includes an inner cylinder 31, a magnet tube 32, and an outer protective cover 33. The magnet tube 32 is magnetic and is fixedly sleeved outside the inner cylinder 31. The outer protective cover 33 is sleeved outside the magnet tube 32. The outer protective cover 33, sleeved outside the magnet tube 32, can prevent the magnet tube 32 from being damaged by external factors, such as hard particles or debris that may be present in the sewage, from scratching or colliding with the surface of the magnet tube 32. This extends the service life of the magnet tube 32, ensures the stability of the magnetism and performance of the magnet tube 32, reduces the frequency of replacement due to damage to the magnet tube 32, and lowers the maintenance cost of the equipment.

[0053] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, the top of the treatment tank 10 is also equipped with an openable protective cover 19. Opening the protective cover 19 allows access to the interior of the solution chamber. Operators can directly observe the operation of the magnetic separation components inside the solution chamber by opening the protective cover 19, such as whether the magnet tube 32 and the separation screen cylinder 42 are working properly, and whether there are any problems such as damaged, loose, or deformed components. This facilitates the timely detection of potential faults, enabling appropriate maintenance measures to be taken to prevent further escalation of the fault and avoid affecting the wastewater treatment effect and the normal operation of the equipment.

[0054] Specifically, one end of the protective cover 19 is hinged to the processing box 10, and the protective cover 19 is arc-shaped.

[0055] The following are the settings instructions for the scrolling component:

[0056] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 and Figure 5As shown, the guide scraper 20 includes a high end, a low end, and a rotating part; the rotating part is located between the high end and the low end, and in the vertical direction, the high end is higher than the low end; a rotating base 16 is fixedly provided on the platform plate 11, and the rotating part is rotatably connected to the rotating base 16 around a first axis, and the first axis is parallel to the rotation axis of the roller 30; the high end is used to be located near the surface of the roller 30; an elastic connector is also provided between the platform plate 11 and the guide scraper 20, and the elastic connector can drive the high end of the guide scraper 20 to keep it tightly attached to the surface of the roller 30. The elastic connector ensures that the high end of the guide scraper 20 remains firmly attached to the surface of the roller 30. Regardless of slight shape changes in the roller 30 due to wear or other factors during rotation, or any errors in installation, the guide scraper 20 maintains excellent contact with the roller 30 surface, effectively scraping off the magnetic material adsorbed on the roller 30 surface and improving the magnetic separation effect and efficiency. The guide scraper 20 is rotatably connected to the rotating base 16 via a rotating part around the first axis, giving it a degree of flexibility and self-adaptability. When the magnetic material on the roller 30 surface is unevenly distributed, or when encountering large magnetic particles during scraping, the guide scraper 20, under the action of the elastic connector, can swing and adjust to a certain extent around the rotating part, better adapting to the surface condition of the roller 30, ensuring smooth scraping, and avoiding problems such as incomplete scraping or damage to the roller 30 surface.

[0057] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 and Figure 5 As shown, a compression spring 17 is fixedly installed on the platform plate 11 on the side of the rotating base 16 away from the drum 30. The upper end of the compression spring 17 is fixedly connected to the guide scraper 20. The compression spring 17 can provide continuous elastic force to the guide scraper 20, so that its upper end always keeps in close contact with the surface of the drum 30. This ensures that during the rotation of the drum 30, the guide scraper 20 can effectively scrape off the magnetic substances and impurities adsorbed on the surface of the drum 30, preventing the magnetic substances from being re-mixed into the sewage and improving the magnetic separation effect. During the operation of the equipment, due to the rotation of the drum 30 and the possible impact of sewage flow, the guide scraper 20 may be subjected to certain vibrations and impacts. The compression spring 17 can play a buffering role, absorbing and weakening these vibrations and impacts, reducing mechanical damage to the guide scraper 20 and the rotating base 16, and extending the service life of the equipment.

[0058] The following are the settings instructions for the separation box 40:

[0059] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 and Figure 2As shown, at least one connecting frame 14 extends downward from the lower end of the magnetic separation shell 12. A fixed scraper 15 is fixedly installed on the connecting frame 14. The extension direction of the fixed scraper 15 is the same as the length extension direction of the separation screen cylinder 42, and one side of the fixed scraper 15 is in contact with the inner wall of the separation screen cylinder 42. The fixed scraper 15 is in contact with the inner wall of the separation screen cylinder 42, which can continuously scrape off impurities and residual magnetic particles attached to its inner wall during the rotation of the separation screen cylinder 42, preventing these substances from accumulating on the screen cylinder wall, thereby preventing the screen holes of the screen cylinder from being blocked. This ensures that the separation screen cylinder 42 can continuously perform solid-liquid separation with high efficiency, so that solid impurities in sewage can be intercepted in time and liquid can be discharged smoothly through the screen cylinder, maintaining the normal operation of the equipment. The setting of the fixed scraper 15 reduces the frequency of manual cleaning of the separation screen cylinder 42, reducing the labor and time costs of equipment maintenance. At the same time, since the separation screen cylinder 42 can maintain a good working condition, the probability of needing to replace parts due to screen cylinder damage or blockage is reduced, further reducing the maintenance cost of the equipment.

[0060] Specifically, a drain pipe 60 is installed on the separation box 40.

[0061] Among the optional solutions in this embodiment, the more preferred one is as follows: Figures 1-3 As shown, a fixing frame 43 is fixedly installed at the lower end of the separation box 40, and the fixing frame 43 is located inside the equipment cavity; the rotary motor 41 is fixedly installed on the fixing frame 43, and the output shaft of the rotary motor 41 extends into the separation box 40 and is fixedly connected to a connector; the connector includes a stud 45 and at least one positioning element (the number of positioning elements can be two, and the two positions are opposite); the stud 45 is fixedly connected to the output shaft of the rotary motor 41; the lower end of the separation screen cylinder 42 is provided with a threaded hole, and the stud 45 is threadedly connected in the threaded hole; the separation screen cylinder 42 is also provided with at least one snap-fit ​​hole, the positioning element corresponds to the snap-fit ​​hole one by one, and the positioning element can position the protruding positioning part in the corresponding snap-fit ​​hole. The fixing frame 43 at the lower end of the separation box 40 provides a stable support foundation for the entire separation device, keeping it in a fixed position within the equipment cavity. This effectively resists external forces such as sewage flow and vibrations generated during equipment operation, ensuring the overall stability of the magnetic separation sewage treatment equipment and preventing the treatment effect from being affected by shaking or displacement. The threaded connection between the stud 45 and the threaded hole at the lower end of the separation screen cylinder 42 enables a tight connection between the output shaft of the rotary motor 41 and the separation screen cylinder 42. The cooperation between the positioning element and the snap-fit ​​hole on the separation screen cylinder 42 plays a role in precise positioning and preventing relative rotation between the stud 45 and the threaded hole.

[0062] Among the optional solutions in this embodiment, the more preferred one is as follows: Figures 1-3As shown, the positioning element includes a locking block 46 and a return spring 47; the output shaft of the rotary motor 41 is fixedly provided with a mounting base 44, and the stud 45 is fixedly provided on the mounting base 44. At least one sliding cavity is provided on the mounting base 44 located circumferentially to the stud 45. The locking block 46 is slidably disposed in the sliding cavity along a first direction (a pull rod is also fixedly provided at the end of the locking block 46 away from the separating mesh cylinder 42). The first direction is parallel to the axis of the stud 45. The first end of the locking block 46 is located in the sliding cavity, and the second end of the locking block 46 is located outside the sliding cavity. The return spring 47 is located in the sliding cavity, and the return spring 47 is located on the side of the first end of the locking block 46 away from the separating mesh cylinder 42. The return spring 47 can push the first end of the locking block 46 to keep the second end of the locking block 46 extended out of the sliding cavity. Multiple positioning elements are distributed circumferentially along the stud 45, which can position the separating screen cylinder 42 from multiple directions. This effectively prevents circumferential offset or unstable rotation of the separating screen cylinder 42 during rotation, making the rotation of the separating screen cylinder 42 more uniform and stable, and improving the reliability and separation efficiency of the equipment. The return spring 47 not only pushes the locking block 46, but also plays a certain role in buffering during equipment operation. When the separating screen cylinder 42 is subjected to the impact of sewage or other external forces during rotation, causing slight vibration or displacement, the return spring 47 can absorb some energy through its own elastic deformation, reducing the impact of vibration and impact on the connection parts, thereby protecting the various components of the equipment and extending the service life of the equipment.

[0063] Specifically, in order to facilitate the cleaning of impurities accumulated inside the separating screen cylinder 42, the separating screen cylinder 42 needs to be disassembled. At this time, pull the lever to make the locking block 46 exit from the locking hole, thereby releasing the limiting and fixing function of the locking block 46. Then, using the threaded engagement between the stud 45 and the threaded hole, rotate the separating screen cylinder 42 to remove it, thereby clearing the impurity particles accumulated inside the barrel.

[0064] Regarding other related settings:

[0065] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, a collection box 18 is fixedly installed on the outer wall of the treatment box 10 corresponding to the solid waste discharge outlet, and the lower end of the guide scraper 20 is located above the opening above the collection box 18. The collection box 18 is positioned corresponding to the solid waste discharge outlet to ensure that the solid waste discharged from the solid waste discharge outlet falls accurately into the collection box 18, preventing solid waste from scattering around the equipment, maintaining the cleanliness of the surrounding environment, facilitating the unified treatment and disposal of solid waste in the future, and preventing secondary pollution caused by the random discharge of solid waste.

[0066] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A magnetic separation wastewater treatment device, characterized in that: Includes a processing box, a rolling assembly, and a separation box; The treatment tank has a solution chamber at the upper inner part and an equipment chamber at the lower inner part; the bottom of the solution chamber has a liquid drain outlet, a valve is provided at the liquid drain outlet, and the solution chamber is used to hold sewage and to add magnetic flocculant additives. The rolling assembly includes a rotatable drum with a magnetic outer surface. The drum is rotatably disposed within the solution chamber. A solid waste discharge outlet is provided at the upper side of the treatment tank. An inclined guide scraper is provided at the solid waste discharge outlet. The guide scraper has a high end and a low end. In the vertical direction, the high end is higher than the low end. The high end of the guide scraper is positioned near the surface of the drum, and this end of the guide scraper is opposite to the rotation direction of the drum. The separation box is fixedly installed inside the equipment cavity. The separation box is equipped with a rotary motor and a separation screen. The rotary motor is used to drive the separation screen to rotate, and the upper opening of the separation screen corresponds to the liquid discharge port.

2. The magnetic separation wastewater treatment equipment according to claim 1, characterized in that: A platform plate and a magnetic separation shell are fixedly installed on the upper inner side of the processing tank; the platform plate is provided with the flow guide scraper; the upper end of the magnetic separation shell forms the solution chamber, and the lower end of the magnetic separation shell is provided with the liquid discharge port.

3. The magnetic separation wastewater treatment equipment according to claim 2, characterized in that: At least one connecting frame extends downward from the lower end of the magnetic separation shell. A fixed scraper is fixedly installed on the connecting frame. The extension direction of the fixed scraper is the same as the length extension direction of the separation mesh cylinder, and one side of the fixed scraper is in contact with the inner wall of the separation mesh cylinder.

4. The magnetic separation wastewater treatment equipment according to claim 2, characterized in that: The guide scraper includes a high end, a low end, and a rotating part; the rotating part is located between the high end and the low end, and in the vertical direction, the high end is higher than the low end; A rotating base is fixedly provided on the platform plate, and the rotating part is rotatably connected to the rotating base around a first axis, and the first axis is parallel to the rotation axis of the roller; The high end is used to be positioned on the surface near the roller; An elastic connector is also provided between the platform plate and the guide scraper, which can drive the high end of the guide scraper to keep it in close contact with the surface of the roller.

5. The magnetic separation wastewater treatment equipment according to claim 4, characterized in that: A compression spring is fixedly installed on the platform plate located on the side of the rotating base away from the roller, and the upper end of the compression spring is fixedly connected to the guide scraper.

6. The magnetic separation wastewater treatment equipment according to claim 1, characterized in that: A fixing frame is fixedly installed at the lower end of the separation box, and the fixing frame is located inside the equipment cavity; The rotary motor is fixedly mounted on the fixed frame, and the output shaft of the rotary motor extends into the separation box and is fixedly connected to a connector. The connector includes a stud and at least one positioning element; the stud is fixedly connected to the output shaft of the rotary motor; the lower end of the separating mesh cylinder is provided with a threaded hole, and the stud is threadedly connected in the threaded hole; the separating mesh cylinder is also provided with at least one snap-fit ​​hole, the positioning element corresponds one-to-one with the snap-fit ​​hole, and the positioning element can position the protruding positioning part in the corresponding snap-fit ​​hole.

7. The magnetic separation wastewater treatment equipment according to claim 6, characterized in that: The positioning element includes a locking block and a return spring; The output shaft of the rotary motor is fixedly provided with a mounting base, the stud is fixedly provided on the mounting base, and at least one sliding cavity is provided on the mounting base located circumferentially to the stud. The locking block is slidably provided in the sliding cavity along a first direction, the first direction being parallel to the axis of the stud. The first end of the locking block is located inside the sliding cavity, and the second end of the locking block is located outside the sliding cavity. The reset spring is located inside the sliding cavity and on the side of the first end of the locking block away from the separating mesh cylinder. The reset spring can push the first end of the locking block to keep the second end of the locking block protruding outside the sliding cavity.

8. The magnetic separation wastewater treatment equipment according to claim 1, characterized in that: A collection box is fixedly installed on the outer wall of the treatment box corresponding to the solid waste discharge outlet, and the lower end of the guide scraper is located above the opening above the collection box.

9. The magnetic separation wastewater treatment equipment according to claim 1, characterized in that: The roller includes an inner cylinder, a magnet tube, and an outer protective cover; the magnet tube is magnetic and is fixedly sleeved outside the inner cylinder, and the outer protective cover is sleeved outside the magnet tube.

10. The magnetic separation wastewater treatment equipment according to claim 1, characterized in that: The top of the processing tank is also equipped with an openable protective cover, which allows the interior of the solution chamber to be seen when the cover is opened.

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