A continuous operation device for separating a complex containing magnetic particles and a separation and material circulation method

Abstract

The present invention relates to a continuously operating device for separating magnetic particle-containing complexes and a separation and material circulation method. The device comprises four rotating wheels arranged in a right-angled trapezoidal pattern, with a mesh track mounted thereon, forming a transmission system; two partitions are located at 2 / 7 and 4 / 7 below the horizontal mesh track at the top of the transmission system; of the four rotating wheels, the one located at the bottom left is a driven wheel, the one located at the top left is a magnetized driven wheel, the one located at the top right is a driven wheel, and the one located at the bottom right is a driving wheel, all of which are connected to the transmission system; a track tensioner is provided between the driven wheel at the bottom left and the driving wheel. The present invention integrates magnetic separation, filtration, washing, and drying, boasting a high degree of integration and clear regional division of labor, enabling continuous fine screening.

Description

Technical Field

[0001] The present invention relates to the application field of magnetic particle-containing composites, and in particular to a device for solid-liquid phase separation, differential screening and material recycling of magnetic particle-containing composites in a solid-liquid suspension system. Background Art

[0002] Magnetic separation technology is a technology that uses a magnetic field to treat substances. This technology uses the difference in magnetic sensitivity of elements or components to treat substances with an external magnetic field to achieve separation.

[0003] Magnetic separation technology can be used as a method for extracting drugs such as proteins, antibodies, and nucleic acids, as well as for catalyst recovery and nuclear wastewater treatment. Currently, magnetic separation-based drug and biological agent separation technologies are found in small-scale intermittent separations in laboratories. For example, patent CN105916972 achieves separation of magnetic particles from nucleic acids or proteins by placing an induction magnet in a fixed hole and pairing it with a main component equipped with a sample inlet channel. The two components are then manually assembled and disassembled, but this is a small-scale intermittent separation method with low efficiency and difficulty in scaling up. Patent CN2220124162U proposes a radioactive wastewater treatment device that can continuously adsorb and discharge magnetic particles. The magnetic separation device is divided into an adsorption zone and a separation zone. A rotating chain drives a magnetic metal grid to rotate, and the grid cooperates with the hanging bar to separate the magnetic particles in the wastewater. However, due to the rotation of the stirring paddle and the grid in the reactor, this solution is not suitable for the structure of the magnetic particle complex, which can easily cause structural damage and prevent further particle size classification and screening.

[0004] To achieve continuous industrial separation of solid-liquid mixtures containing magnetic particle complexes, while also enabling differential particle size screening and overall material recycling, it is necessary to design a device and technical method that can separate and differentially screen magnetic particles and their complexes, while also enabling continuous production and discharge of both products and waste. Currently, no such technology exists for separating magnetic complexes. Summary of the Invention

[0005] To address the problem that existing separation devices and methods for complexes containing magnetic particles cannot achieve continuous industrial separation, screening, and recovery, the present invention provides a continuously operating device and method for separating complexes containing magnetic particles. This device utilizes a fixed magnet below a belt mechanism and a magnetic driven pulley to continuously separate the various magnetic particle complexes in the mother liquor and transfer them to a filtration zone. Under the action of gravity and vacuum, continuous separation and screening are achieved. The present invention integrates magnetic separation, filtration, washing, and drying, achieving a high level of integration, clear regional division of labor, and continuous fine screening.

[0006] The technical solutions of the present invention are as follows:

[0007] A continuous operation device for separating magnetic particle-containing composites, comprising: four rotating wheels arranged in a right-angled trapezoidal pattern, with a mesh crawler mounted thereon, forming a transmission system; two partitions distributed at positions 2 / 7 and 4 / 7 below the mesh crawler on the upper horizontal portion of the transmission system;

[0008] Among the four rotating wheels, the one on the lower left is the driven wheel, the one on the upper left is the magnetic driven wheel, the one on the upper right is the driven wheel, and the one on the lower right is the driving wheel, which are connected to the transmission device; a track tensioner is provided in the middle of the driven wheel on the lower left and the driving wheel;

[0009] From the driven wheel on the lower left to the magnetic driven wheel upward is the magnetic separation area (I);

[0010] From the magnetic driven wheel to the first partition on the left is the filtration area (II);

[0011] From the first partition on the left to the second partition on the left is the washing area (III);

[0012] From the second partition on the left to the upper right driven wheel is the drying area (IV);

[0013] A feed port is vertically installed on the upper portion of the left inclined surface of the transmission system, and a magnet is installed below the inclined surface parallel to the sieve track; a vacuum suction cup is provided below the horizontal sieve track section (i.e., filtering section (II)) on the right side of the first partition on the left; a washing liquid inlet with a liquid distributor is vertically provided on the upper portion of the sieve track section between the two partitions (i.e., washing section (III)), and a vacuum suction cup is also provided below; a heating device is provided below the horizontal sieve track section (i.e., drying section (IV)) on the right side of the second partition on the left; a scraper is provided at 1 / 4 of the right vertical belt surface, which contacts the scraper, and the right side of the scraper is connected to the product discharge channel of the product collector and extends along the lower right to the discharge port;

[0014] The lowest end of the inclined portion on the left side of the sieve track contacts the liquid collecting port of the liquid collector and extends downward to the liquid outlet;

[0015] The vacuum suction cup at the filtration area (II) extends downward to the screening cylinder. The barrel is provided with an inclined filter screen, and the lowest end is connected to the particle size screening channel. The screening cylinder 8 is connected to the drainage channel downward;

[0016] The vacuum suction cup in the washing area (III) has a vacuum pipeline below it, which is connected in series to the bottom of the filter head 11 in the drainage channel on the left, then connected to the vacuum pump on the left, and finally extends to the liquid outlet of the liquid collector on the far left;

[0017] The magnetic driven wheel is based on an ordinary driven wheel, including a magnetic shaft and a wheel body, and the wheel body includes a bracket and a ring; outside the ring, there is a coating layer, which is divided into two parts, magnetic isolation material and magnetizable material, wherein the area of ​​the magnetizable material accounts for 1 / 3 of the outer surface area of ​​the magnetic driven wheel ring, and the remaining 2 / 3 is magnetizable material.

[0018] The type of magnet under the conveyor belt is a permanent magnet; the magnetic induction intensity is between 3000-5000 Gauss;

[0019] The specific material of the magnetic isolation material is one or more of copper metal and aluminum metal;

[0020] The material of the magnetizable material is specifically one or more of iron metal, nickel metal or ferrite; the magnetic induction intensity of the magnetizable material after magnetization is between 6500-8500 Gauss.

[0021] A heating device is provided under the conveyor belt in the drying zone (IV), and the heating method is one of steam heating, water heating and electric heating.

[0022] The separation and material circulation method of the continuous operation device for separating magnetic particle-containing complexes comprises the following steps: feeding - solid-liquid separation - filtration - particle size screening - washing - drying - discharging.

[0023] The suspension of the complex containing magnetic particles enters the feed channel through the feed port, falls onto the conveyor belt, and enters the magnetic separation area. As the conveyor belt rotates clockwise, under the influence of gravity, the liquid and non-magnetic particles continue to flow down along the conveyor belt, while the complex containing magnetic particles and the magnetic particles in the liquid are adsorbed on the conveyor belt under the influence of magnetic force, move in the direction of the conveyor belt, realize solid-liquid separation, and are transferred to the filtration area through the magnetic driven wheel; when reaching the filtration area, the magnetic particles smaller than the specified product particle size are adsorbed by the suction cup and leave the conveyor belt surface, enter the screening drum, and perform multi-stage separation according to the particle size difference; the product particles trapped on the surface of the transmission belt then pass through the washing area and the drying area in turn, and the target product finally slides to the discharge port under the action of gravity and the scraper, and is collected to realize continuous separation, and finally complete the entire separation process; the mother liquor and its products that do not meet the requirements are discharged through the drainage channel and the particle size classification channel respectively.

[0024] Compared with the existing technology, it has the following beneficial effects:

[0025] This device and method can continuously separate the solid and liquid of magnetic particle-containing complexes. By using a fixed magnet and a magnetic driven wheel structure, the adsorption and transfer of the magnetic particle complexes are achieved through the alternating appearance of magnetic force and magnetic force. By using a sieve track and a filter screen placed at a certain inclination angle and a vacuum suction cup, fine screening of particles of different particle sizes is achieved under the action of their own gravity and vacuum, and waste materials can be recycled. At the same time, the device integrates magnetic separation, filtration, washing and drying in one. The device has a high degree of integration and a clear regional division of labor, which gives it the advantage of continuous fine screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A front view of a continuous operation device for a complex containing magnetic particles;

[0027] Figure 2 This is a front view of a device using water heating as a drying method;

[0028] Figure 3 This is a partial enlarged view of the magnetic driven wheel (magnetic axis);

[0029] Figure 4 This is a working principle diagram of the separation and material circulation method of the device;

[0030] Among them, 1. feed inlet; 2. sieve track; 3. magnetic isolation material; 4. magnetizable material; 5. magnetic axis; 6. magnet; 7. vacuum suction cup; 8. screening drum; 9. filter screen; 10. drainage channel; 11. filter head; 12. particle size classification channel; 13. vacuum pipeline; 14. washing liquid inlet; 15. liquid distributor; 16. heating device; 17. magnetic driven wheel; 18. driven wheel; 19. guard plate; 20. scraper; 21. product discharge channel; 22. discharge port; 23. electronic control system; 24. driving wheel; 25. track tensioner; 26. vacuum pump; 27. transmission device; 28. window; 29. ​​partition; 30. liquid collection port; 31. liquid outlet; 32. box; 33. base; 34. heat source pipeline; 35. heat source valve; DETAILED DESCRIPTION

[0031] The present invention will be described in detail below with reference to specific examples. The following examples will help those skilled in the art further understand the present invention but are not intended to limit the present invention in any way. It should be noted that variations and modifications are possible within the scope of the present invention, without departing from the spirit of the present invention. These modifications and improvements are all within the scope of protection of the present invention.

[0032] Example 1: Separation of Magnetic Particle-Monoclonal Antibody Complexes in Biopharmaceuticals

[0033] The continuous operation device for separating the magnetic particle-containing complex of the present invention is as follows Figure 1As shown, the four rotating wheels are distributed in a right-angled trapezoid, and the sieve track 2 is installed on it to form a transmission system; the two partitions 29 are distributed directly below the 2 / 7 and 4 / 7 positions on the upper horizontal sieve track 2 of the transmission system (starting from the right edge of the magnetic driven wheel 17, from left to right), and their dimensions are rectangular parallelepipeds of 2 cm × 50 cm × 60 cm.

[0034] Among the four rotating wheels, the one located at the lower left side is the driven wheel 18, the one located at the upper left side is the magnetic driven wheel 17, the one located at the upper right side is the driven wheel 18, and the one located at the lower right side is the driving wheel 24, which is connected to the transmission device 27; a track tensioner 25 is provided in the middle of the driven wheel 18 at the lower left side and the driving wheel 24.

[0035] From the driven wheel on the lower left upward to the magnetic driven wheel 17 is the magnetic separation area (I), which is used to separate the magnetic particle complex in the mother liquor to achieve solid-liquid separation.

[0036] The area from the magnetic driven wheel 17 to the first partition plate 29 on the left is the filtering area (II), which is used to finely screen the magnetic particle composites of various particle sizes to achieve the separate output of composite magnetic particles in different particle size ranges.

[0037] The washing zone (III) extends from the first partition plate 29 on the left to the second partition plate 29 on the left, and is used for washing and dispersing the composite magnetic particles, thereby further removing impurities and dispersing the composite magnetic particle product.

[0038] From the second partition plate 29 on the left to the upper right driven wheel 18 is the drying zone (IV), which is used to dry composite magnetic particle products with qualified particle size.

[0039] A feed port 1 is vertically installed at the upper part of the 3 / 4 of the left inclined surface of the transmission system, and a magnet 6 is installed parallel to the sieve track 2 below the inclined surface; a vacuum suction cup 7 is provided below the horizontal sieve track 2 section (i.e., the filtration section (II)) on the right side of the first partition 29 on the left; a washing liquid inlet 14 with a liquid distributor 15 is vertically provided at the upper part of the section of the sieve track 2 between the two partitions 29 (i.e., the washing section (III)), and a vacuum suction cup 7 is also provided below; a heating device 16 is provided below the horizontal sieve track 2 section (i.e., the drying section (IV)) on the right side of the second partition 29 on the left; a scraper 20 is provided at 1 / 4 of the right vertical belt surface to contact it, and the right side of the scraper 20 is connected to the product discharge channel 21 of the product collector and extends to the discharge port 22 along the lower right.

[0040] The lowest end of the inclined portion on the left side of the sieve crawler 2 contacts the liquid collecting port 30 of the liquid collector and extends downward to the liquid outlet 31;

[0041] The vacuum suction cup 7 at the filtration area (II) extends downward to the screening drum 8. The drum is provided with an inclined filter screen 9, and the lowest end is connected to the particle size screening channel 12. The screening drum 8 is connected downward to the drainage channel 10;

[0042] The vacuum suction cup 7 in the washing area (III) has a vacuum pipe 13 below it, which is connected in series to the bottom of the filter head 11 in the drainage channel 10 on the left, and then connected to the vacuum pump 26 on the left, and finally extends to the liquid outlet 31 of the liquid collector on the far left;

[0043] like Figure 3 As shown, the magnetic driven wheel 17 is based on an ordinary driven wheel, including a magnetic shaft 5 and a wheel body, and the wheel body includes a bracket and a ring; outside the ring, there is a coating layer, which is divided into two parts, a magnetic isolation material 3 and a magnetizable material 4, wherein the area of ​​the magnetizable material accounts for 1 / 3 of the outer surface area of ​​the magnetic driven wheel ring, and the remaining 2 / 3 is the magnetizable material 4.

[0044] The type of magnet 6 under the conveyor belt is a permanent magnet; and the magnet 6 is placed parallel to the conveyor belt, and the magnetic induction intensity of the magnet 6 is 3000 Gauss.

[0045] The specific material of the magnetic isolation material 3 is copper metal;

[0046] The material of the magnetizable material 4 is specifically ferrite material; the magnetic induction intensity of the magnetizable material 4 after magnetization is 6500 Gauss.

[0047] The magnetic isolation material 3 and the magnetizable material 4 are both rectangular thin layers with a thickness of 5 mm (the area of ​​the magnetic isolation material 3 is half the area of ​​the magnetizable material 4).

[0048] The diameter of the magnetic driven wheel 17 is 80.5 cm, and the diameters of the other transmission wheels are all 80 cm and 50 cm wide; the mesh track 2 is 50 cm wide and 1 cm thick.

[0049] Below the filtration zone, a vacuum suction cup 7 is connected to a screening drum 8. The mesh track 2 has a pore size of 3μm. Inside the drum, a double layer of filter screen 9 is placed at a 1° inclination. The specifications, from top to bottom, are 1μm and 0.15μm, respectively. The lower section is connected to a valved particle grading channel 12. The multi-layered filter screen arrangement achieves differentiated screening of particles of different sizes. The inclined placement allows products that cannot pass through the screen to slide down the screen under the action of gravity, resulting in a certain continuous discharge rate.

[0050] The screening cylinder below the filtration area has a vacuum tube 13 as a drainage channel 10 downwardly. Furthermore, there is a drainage channel with a filter head 11 as a visually detachable component.

[0051] like Figure 1As shown, a heating device 16 is provided below the conveyor belt in the drying area, and the heating method is electric heating; wherein the electric heating device is connected to the electric control system 23. The electric control system is used to control the electric heating intensity more accurately to provide the heat required for drying.

[0052] After the drying zone, the conveyor belt turns from horizontal to vertical, and a scraper 20 is provided to contact the conveyor belt surface, and the lower edge of the scraper is connected to the product collection box.

[0053] The conveyor belt is driven by a driving pulley 24 connected to a transmission 27, driving a magnetic driven pulley 17 and two driven pulleys 18. A track tensioner 25, located halfway between the two lower drive pulleys, assists in its operation. A mesh track 2 runs from the magnetic separation zone through the filtration, washing, and drying zones to the scraper area. Vertically spaced guard plates 19 are installed on both sides of the mesh track. All components, except the inlet and outlet, are housed in a housing 32 supported by a base 33. A window 28 is located in the upper three-quarters of the left side of the housing, enabling real-time monitoring of the equipment's operating conditions.

[0054] Specific process:

[0055] The solid suspension containing magnetic particle-monoclonal antibody complex with a particle size range of 0.1-4μm passes through the feed port at a flow rate of 1L / min and falls onto the conveyor belt. After entering the magnetic separation area, the conveyor belt moves clockwise at a speed of 1.5m / min. Under the influence of gravity, the liquid and non-magnetic particles accounting for 1.5% of the total number of solid particles continue to flow down along the conveyor belt, while the magnetic particle-monoclonal antibody complex and magnetic particles in the liquid are adsorbed on the conveyor belt under the influence of magnetic force. With the movement of the conveyor belt, solid-liquid separation is achieved, and through the transmission of the magnetic driven wheel, it leaves the magnetic separation area and reaches the filtration area. The magnetic particle-monoclonal antibody complex and magnetic particles with a particle size of less than 3μm enter the screening cylinder for multi-stage separation; among them, magnetic particles larger than 3μm- The monoclonal antibody complex then passes through the washing area for washing and dispersion, and enters the drying area for drying. The temperature of the heating device is controlled at 80°C, and the target product finally slides to the discharge port under the action of gravity and scrapers, accounting for 85% of the total number of solid particles. It is collected to achieve continuous separation, and finally complete the entire separation process; according to the instructions, magnetic particle-monoclonal antibody complexes with a particle size range of 1-3μm and 0.15-1μm are also obtained, accounting for 7% and 6% of the total number of solid particles respectively, which can be discharged from the particle size classification channel respectively; and the mother liquor and its magnetic particle-monoclonal antibody complex products with a particle size not exceeding 0.15μm and other particles are discharged through the drainage channel, of which the latter accounts for 0.5% of the total mass of the solid particles.

[0056] Example 2: Separation of Magnetic Particle-Protein Complexes in Food Testing

[0057] The parts not mentioned in this embodiment are consistent with those in Example 1; the differences are as follows:

[0058] The magnetic induction intensity of the magnet 6 is 4000 Gauss.

[0059] The specific material of the magnetic isolation material 3 is aluminum metal;

[0060] The material of the magnetizable material 4 is specifically nickel metal; the magnetic induction intensity of the magnetizable material 4 after magnetization is 7000 Gauss.

[0061] The vacuum suction cup 7 below the filtration area is connected to the screening cylinder 8. The pore size of the sieve track 2 is 4μm. A double layer of filter screen 9 is placed at an inclined angle of 5° in the cylinder. The specifications are 2μm and 0.1μm from top to bottom respectively, and the lower section is connected to the particle size classification channel 12 with a valve.

[0062] like Figure 2 As shown, a heating device 16 is provided below the conveyor belt in the drying area, and the heating method is water heating; the water heating device is connected to the heat source valve 35 and the heat source pipeline 34.

[0063] Specific process:

[0064] A solid suspension containing magnetic particle-protein complexes with a particle size range of 0.05-5μm passes through the feed port at a flow rate of 1L / min and falls onto the conveyor belt. After entering the magnetic separation zone, the conveyor belt moves clockwise at a speed of 1.5m / min. Under the influence of gravity, the liquid and non-magnetic particles accounting for 2.5% of the total solid particles continuously flow down along the conveyor belt, while the magnetic particle-protein complexes and magnetic particles in the liquid are adsorbed on the conveyor belt under the influence of magnetic force and move in the direction of the conveyor belt to achieve solid-liquid separation. After being transferred by the magnetic driven wheel, they leave the magnetic separation zone and reach the filtration zone. The magnetic particle-protein complexes and magnetic particles with a particle size of less than 4μm enter the screening drum for multi-stage separation. Magnetic particle-protein complexes larger than 4μm are then washed and dispersed in the washing area and then enter the drying area for drying. The temperature of the heating device is controlled at 80°C. The target product eventually slides to the discharge port under the action of gravity and scrapers, accounting for 80% of the total number of solid particles. They are collected to achieve continuous separation and finally complete the entire separation process. According to the instructions, magnetic particle-protein complexes with a particle size range of 2-4μm and 0.1-2μm are also obtained, accounting for 9% and 8.5% of the total number of solid particles respectively, which can be discharged from the particle size classification channel respectively; and the mother liquor and its magnetic particle-protein complex products with a particle size not exceeding 0.1μm and other particles are discharged through the drainage channel.

[0065] Example 3: Separation of Magnetic Particle-Paclitaxel Complex in Drug System

[0066] The parts not mentioned in this embodiment are consistent with those in Example 1; the differences are as follows:

[0067] The magnetic induction intensity of the magnet 6 is 5000 Gauss.

[0068] The specific material of the magnetic isolation material 3 is aluminum metal;

[0069] The magnetizable material 4 is specifically made of ferrous metal; the magnetic induction intensity of the magnetized material 4 is 8500 gauss. Below the filtration zone, a vacuum suction cup 7 is connected to a screening drum 8. The mesh track 2 has a pore size of 0.5 μm. Within the drum is a single-layer filter screen 9 with a size of 0.22 μm, positioned at a 20° angle. The lower section is connected to a valved particle grading channel 12.

[0070] like Figure 2 As shown, a heating device 16 is provided below the conveyor belt in the drying area, and the heating method is steam heating; the steam heating device is connected to the heat source valve 35 and the heat source pipeline 34.

[0071] Specific process:

[0072] A solid suspension containing a magnetic particle-paclitaxel complex with a particle size range of 0.1-0.6 μm passes through the feed port at a flow rate of 1 L / min and falls onto the conveyor belt. After entering the magnetic separation area, the conveyor belt moves clockwise at a speed of 1.5 m / min. Affected by gravity, the liquid and non-magnetic particles accounting for 5% of the total number of solid particles continue to flow down along the conveyor belt, while the magnetic particle-paclitaxel complex and magnetic particles in the liquid are adsorbed on the conveyor belt under the influence of magnetic force, moving in the direction of the conveyor belt to achieve solid-liquid separation, and are transferred by the magnetic driven wheel to leave the magnetic separation area and reach the filtration area. The magnetic particle-paclitaxel complex and magnetic particles with a particle size of less than 0.5 μm are adsorbed by the suction cup and leave the conveyor belt surface and enter the screening cylinder. Multi-stage separation is carried out; magnetic particle-paclitaxel complexes larger than 0.5μm are then washed and dispersed in the washing area in turn, and enter the drying area for drying. The temperature of the heating device is controlled at 80°C, and the target product eventually slides to the discharge port under the action of gravity and scrapers, accounting for 92% of the total number of solid particles. They are collected to achieve continuous separation, and finally complete the entire separation process; according to the instructions, magnetic particle-paclitaxel complex products between 0.22-0.5μm are also obtained, accounting for 2% of the total number of solid particles, which can be discharged from the particle size classification channel; while the mother liquor and magnetic particle-paclitaxel complexes with a particle size of less than 0.22μm and other particles are discharged through the drainage channel, the latter accounting for 1% of the total mass of solid particles.

[0073] Matters not covered by the present invention are known technologies.

Claims

1. A continuous operation device for separating a complex containing magnetic particles, characterized by: The device consists of four rotating wheels arranged in a right-angle trapezoidal shape, with a mesh crawler mounted on them, forming a transmission system; two partitions are distributed at 2 / 7 and 4 / 7 of the lower part of the mesh crawler on the upper horizontal part of the transmission system; Among the four rotating wheels, the one on the lower left is the driven wheel, the one on the upper left is the magnetic driven wheel, the one on the upper right is the driven wheel, and the one on the lower right is the driving wheel, which are connected to the transmission device; a track tensioner is provided in the middle of the driven wheel on the lower left and the driving wheel; From the driven wheel on the lower left to the magnetized driven wheel is the magnetic separation area (I); From the magnetized driven wheel to the first partition on the left is the filtration area (II); From the first partition on the left to the second partition on the left is the washing area (III); From the second partition on the left to the upper right driven wheel is the drying area (IV); A feed port is vertically installed on the upper part of the left inclined surface of the transmission system, and a magnet is installed below the inclined surface parallel to the mesh track; a vacuum suction cup is installed below the horizontal mesh track section on the right side of the first partition on the left, that is, the filtering zone (II); a washing liquid inlet with a liquid distributor is vertically installed in the mesh track section between the two partitions, that is, the upper part of the washing zone (III), and a vacuum suction cup is also installed below; a heating device is installed below the horizontal mesh track section on the right side of the second partition on the left, that is, the drying zone (IV); a scraper is provided at 1 / 4 of the right vertical belt surface, which is in contact with it. The right side of the scraper is connected to the product discharge channel of the product collector and extends to the discharge port along the lower right side. The lowest end of the inclined portion on the left side of the sieve track contacts the liquid collecting port of the liquid collector and extends downward to the liquid outlet; The vacuum suction cup at the filtration area (II) extends downward to the screening cylinder. The barrel is provided with an inclined screen, and the lowest end is connected to the particle size screening channel. The screening cylinder is connected to the drainage channel downward; The vacuum suction cup in the washing area (III) has a vacuum pipeline below it, which is connected in series to the bottom of the filter head in the drainage channel to the left, then connected to the vacuum pump on the left, and finally extends to the liquid outlet of the liquid collector on the far left; The magnetic driven wheel includes a magnetic shaft and a wheel body, and the wheel body includes a bracket and a ring; outside the ring, there is a coating layer, which is divided into two parts, magnetic isolation material and magnetizable material, wherein the area of ​​the magnetizable material accounts for 1 / 3 of the outer surface area of ​​the magnetic driven wheel ring, and the remaining 2 / 3 is magnetizable material.

2. The continuous operation device for separating complexes containing magnetic particles according to claim 1, wherein the magnets below the conveyor belt are permanent magnets with a magnetic induction intensity between 3000 and 5000 gauss. The specific material of the magnetic isolation material is one or more of copper metal and aluminum metal; The material of the magnetizable material is specifically one or more of iron metal, nickel metal or ferrite; the magnetic induction intensity of the magnetizable material after magnetization is between 6500-8500 Gauss.

3. The continuous operation device for separating complexes containing magnetic particles according to claim 1, characterized in that: A heating device is provided under the conveyor belt in the drying area, and the heating method is one of steam heating, water heating and electric heating.

4. The separation and material circulation method of the continuous operation device for separating magnetic particle-containing complexes according to claim 1, characterized in that: The following steps are involved: The suspension of the complex containing magnetic particles enters the feed channel through the feed port, falls onto the conveyor belt, and enters the magnetic separation area. As the conveyor belt rotates clockwise, under the influence of gravity, the liquid and non-magnetic particles continue to flow down along the conveyor belt, while the complex containing magnetic particles and the magnetic particles in the liquid are adsorbed on the conveyor belt under the influence of magnetic force, move in the direction of the conveyor belt, realize solid-liquid separation, and are transferred to the filtration area through the magnetized driven wheel; when reaching the filtration area, the magnetic particles smaller than the specified product particle size are adsorbed by the suction cup and leave the conveyor belt surface, enter the screening drum, and perform multi-stage separation according to the particle size difference; the product particles trapped on the surface of the transmission belt then pass through the washing area and the drying area in turn, and the target product finally slides to the discharge port under the action of gravity and the scraper, and is collected to realize continuous separation, and finally complete the entire separation process; the mother liquor and its unqualified products are discharged through the drainage channel and the particle size classification channel respectively.

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