Continuous operation device for separating compound containing magnetic particles and separation and substance circulation method

Abstract

The invention relates to a continuous operation device for separating a compound containing magnetic particles and a separation and substance circulation method. The device is characterized in that four rotating wheels are distributed in a right trapezoid shape, and a sieve pore crawler belt is installed on the four rotating wheels to form a transmission system; the two partition plates are distributed at 2 / 7 and 4 / 7 positions of the lower part of the horizontal sieve pore crawler belt at the upper part of the transmission system; wherein in the four rotating wheels, the driven wheel arranged at the lower part of the left side, the magnetized driven wheel arranged at the upper part of the left side, the driven wheel arranged at the upper part of the right side and the driving wheel arranged at the lower part of the right side are connected with the transmission device; and a track tensioner is arranged between the driven wheel and the driving wheel at the lower part of the left side. The device integrates magnetic separation, filtration, washing and drying, is high in integration level and clear in regional division of labor, and can realize continuous fine screening.

Description

Technical Field

[0001] The 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 composites containing magnetic particles in a solid-liquid suspension system. Background Art

[0002] Magnetic separation technology is a technology that processes substances through magnetic fields. This technology uses the differences in magnetic sensitivity of elements or components to process substances through external magnetic fields to achieve separation.

[0003] Magnetic separation technology can be used as a method for extracting drugs such as proteins, antibodies, nucleic acids, etc., as well as for catalyst recovery and nuclear wastewater treatment. At present, magnetic separation-based drug and biological agent separation technology is seen in small-scale intermittent separation in the laboratory. For example, patent CN105916972 places an induction magnet in a fixed hole position and pairs it with a main component with a sample inflow channel, and manually combines and splits the two components to achieve separation of magnetic particles and nucleic acids or proteins. However, it is a small-scale intermittent separation, with low efficiency and difficulty in scale-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. The rotating chain drives the magnetic metal grid to rotate, and cooperates with the hanging bar to achieve the separation of magnetic particles in the wastewater; however, due to the rotation of the stirring paddle and the grid in the reactor, this scheme is not applicable to the structure of the magnetic particle complex, which is easy to cause structural damage, and further particle size classification and screening cannot be performed.

[0004] In order to achieve continuous separation of magnetic particle composite solid-liquid mixed systems in industry, realize differential screening of particle sizes, and overall recycling of materials, it is necessary to design a device and technical method that can separate and differentially screen magnetic particles and their composites and realize continuous output and discharge of products and waste. At present, there is no such technology in the field of separation of magnetic composites. Summary of the invention

[0005] In view of the problem that complexes containing magnetic particles cannot be separated, screened and recovered continuously in industry in existing separation devices and methods, the present invention provides a continuous operation device and method for separating complexes containing magnetic particles. The device achieves continuous separation of each magnetic particle complex in the mother liquor and transfers it to the filtration area through the cooperation between the fixed magnet and the magnetic driven wheel under the belt device, and achieves continuous separation and screening under the action of its own gravity and vacuum. The present invention integrates magnetic separation, filtration, washing and drying, has high integration, clear regional division of labor, and can achieve continuous fine screening.

[0006] The technical solution of the present invention is as follows: A continuous operation device for separating a composite containing magnetic particles, the device comprises: four rotating wheels arranged in a right-angle trapezoidal shape, a sieve track installed on the wheels, forming a transmission system; two partitions arranged at 2 / 7 and 4 / 7 of the lower part of the horizontal sieve track at the upper part of the transmission system; Among the four rotating wheels, the one on the lower left side is a driven wheel, the one on the upper left side is a magnetic driven wheel, the one on the upper right side is a driven wheel, and the one on the lower right side is a driving wheel, which is connected to the transmission device; a track tensioner is provided in the middle of the driven wheel on the lower left side and the driving wheel; From the lower left driven wheel upward to the magnetic driven wheel is the magnetic separation area (I); From the magnetic driven wheel to the first partition on the left is the filter area (II); From the first partition on the left to the second partition on the left is the washing area (III); From the second baffle on the left to the upper right driven wheel is the dry zone (IV); A feed port is vertically installed on the upper part of the left inclined surface of the transmission system, and a magnet parallel to the mesh crawler is installed below the inclined surface; a vacuum suction cup is provided below the horizontal mesh crawler 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 part of the mesh crawler 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 right horizontal mesh crawler section (i.e., drying section (IV)) of the second partition on the left; a scraper is provided at 1 / 4 of the right vertical belt surface section to contact with it, and 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 surface part 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, in which an inclined filter screen is provided, and the lowest end is connected to the particle size screening channel, and the screening cylinder 8 is connected downward to the drainage channel; The vacuum suction cup at 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 liquid discharge channel to the left, and then connected to the vacuum pump to the left, and finally extends to the liquid outlet of the leftmost liquid collector; 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.

[0007] The type of magnet under the conveyor belt is a permanent magnet; the magnetic induction intensity is between 3000-5000 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.

[0008] 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.

[0009] 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.

[0010] The suspension of the composite 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 composite 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.

[0011] Compared with the prior art, it has the following beneficial effects: The device and method can continuously separate the solid and liquid of the magnetic particle-containing composite material, and utilizes the fixed magnet and the magnetic driven wheel structure to realize the adsorption and transfer of the magnetic particle composite material through the magnetic force and the alternating appearance of the magnetic force; utilizes the sieve track and the filter screen and the vacuum suction cup placed at a certain inclination angle to realize the fine screening of particles of different particle sizes under the action of their own gravity and vacuum, and the waste material can be recycled. At the same time, the device integrates magnetic separation, filtration, washing and drying, and has a high degree of integration and clear regional division of labor, so that it has the advantage of continuous fine screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view of a continuous operation device for a composite containing magnetic particles; Figure 2 This is a front view of a device using water heating as a drying method; Figure 3 This is a partial enlarged view of the magnetic driven wheel (magnetic axis); Figure 4 The working principle diagram of the separation and material circulation method of the device is as follows; Among them, 1. feed port; 2. mesh crawler; 3. magnetic isolation material; 4. magnetizable material; 5. magnetic axis; 6. magnet; 7. vacuum suction cup; 8. screening cylinder; 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. crawler 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

[0013] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention. These all fall within the scope of protection of the present invention.

[0014] Example 1: Separation of magnetic particle-monoclonal antibody complexes in biopharmaceuticals The continuous operation device for separating the magnetic particle-containing complex of the present invention is as follows Figure 1 As shown, the four rotating wheels are distributed in a right-angle trapezoidal shape, and the sieve track 2 is installed thereon to form a transmission system; the two partitions 29 are distributed directly below the 2 / 7 and 4 / 7 positions (starting from the right edge of the magnetic driven wheel 17, from left to right) on the upper horizontal sieve track 2 of the transmission system, and their dimensions are a rectangular parallelepiped of 2 cm×50 cm×60 cm.

[0015] 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.

[0016] From the driven wheel at the lower left to the magnetic driven wheel 17 upward is the magnetic separation area (I), which is used to separate the magnetic particle complex in the mother liquor to achieve solid-liquid separation.

[0017] The filtering area (II) from the magnetic driven wheel 17 to the first partition plate 29 on the left is used for fine screening of magnetic particle composites of various particle sizes, so as to achieve the separate output of composite magnetic particles of different particle size ranges.

[0018] The washing zone (III) is 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, so as to further remove impurities and disperse the composite magnetic particle product.

[0019] From the second baffle 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 sizes.

[0020] 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 below the inclined surface parallel to the mesh track 2; a vacuum suction cup 7 is provided below the horizontal mesh track 2 section (i.e., the filtering 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 mesh 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 mesh 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 section to contact it, and the scraper 20 is connected to the product discharge channel 21 of the product collector on the right side and extends to the discharge port 22 along the lower right.

[0021] The lowest end of the inclined surface 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; The vacuum suction cup 7 at the filtering area (II) extends downward to the screening cylinder 8, and a tilted filter screen 9 is provided in the barrel, and the lowest end is connected to the particle size screening channel 12, and the screening cylinder 8 is connected to the drainage channel 10 downward; The vacuum suction cup 7 at 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 to the left, and then connected to the vacuum pump 26 to the left, and finally extends to the liquid outlet 31 of the leftmost liquid collector; 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.

[0022] 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.

[0023] The specific material of the magnetic isolation material 3 is copper metal; 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.

[0024] 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).

[0025] The diameter of the magnetic driven wheel 17 is 80.5 cm, and the diameters of the other driving wheels are 80 cm and 50 cm wide; the sieve track 2 is 50 cm wide and 1 cm thick.

[0026] The vacuum suction cup 7 below the filtration area is connected to the screening cylinder 8. The sieve track 2 has an aperture of 3μm. A double-layer filter screen 9 is placed at an inclined angle of 1° in the cylinder. The specifications are 1μm and 0.15μm from top to bottom, and the lower section is connected to the particle size classification channel 12 with a valve. The setting of the multi-layer filter screen realizes the differentiated screening of particles of different particle sizes. The inclined placement method allows the product that cannot pass through the filter screen to slide along the filter screen under the action of gravity, so that the product has a certain continuous discharge speed.

[0027] The screening cylinder below the filtration area has a vacuum tube 13 as a drainage channel 10 downwardly, and further, there is a drainage channel with a filter head 11 as a visible detachable component.

[0028] like Figure 1 As shown, a heating device 16 is provided under 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.

[0029] After the drying area, the conveyor belt turns from horizontal to vertical, and a scraper 20 is provided to contact the surface of the conveyor belt, and the lower edge of the scraper is connected to the product collection box.

[0030] The conveyor belt is driven by a driving wheel 24 connected to a transmission device 27, driving a magnetic driven wheel 17 and two driven wheels 18. The track tensioner 25 located at the middle 1 / 2 of the two lower transmission wheels assists its operation. The mesh track 2 passes through the filtering area, washing area, drying area and the scraper area from the magnetic separation area. Vertically distributed guard plates 19 are provided on both sides of the mesh track; except for the inlet and outlet parts, all are placed in a box 32, which is supported by a base 33. A window 28 is provided at the upper 3 / 4 of the left side of the box to realize real-time monitoring of the equipment working condition.

[0031] Specific process: 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. Affected by 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 arrives at the filtration area. The magnetic particle-monoclonal antibody complex and magnetic particles with a particle size less than 3μm enter the screening cylinder for multi-stage separation; among them, the 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, and is collected to achieve continuous separation, and finally complete the entire separation process; according to the instructions, magnetic particle-monoclonal antibody complexes in the 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 discharge channel, of which the latter accounts for 0.5% of the total mass of the solid particles.

[0032] Example 2: Separation of magnetic particle-protein complexes in food testing The parts not mentioned in this embodiment are consistent with those in Embodiment 1; the differences are as follows: The magnetic induction intensity of the magnet 6 is 4000 Gauss.

[0033] The specific material of the magnetic isolation material 3 is aluminum metal; 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.

[0034] The vacuum suction cup 7 below the filtration area is connected to the screening cylinder 8. The sieve track 2 has a pore size of 4μm. A double layer of filter screen 9 is arranged in the cylinder at an inclined angle of 5°. The specifications are 2μm and 0.1μm from top to bottom, and the lower section is connected to the particle size classification channel 12 with a valve.

[0035] like Figure 2 As shown, a heating device 16 is provided below the conveyor belt in the drying zone, and the heating method thereof is water heating; the water heating device is connected to a heat source valve 35 and a heat source pipeline 34 .

[0036] Specific process: The 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 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 2.5% of the total number of 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. Through the transmission of the magnetic driven wheel, they leave the magnetic separation area and arrive at the filtration area. The magnetic particle-protein complexes and magnetic particles with a particle size of less than 4μm enter the screening cylinder 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 finally 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.

[0037] Example 3: Separation of magnetic particle-paclitaxel complex in drug system The parts not mentioned in this embodiment are consistent with those in Embodiment 1; the differences are as follows: The magnetic induction intensity of the magnet 6 is 5000 Gauss.

[0038] The specific material of the magnetic isolation material 3 is aluminum metal; The material of the magnetizable material 4 is iron metal; the magnetic induction intensity of the magnetizable material 4 after magnetization is 8500 Gauss. The vacuum suction cup 7 below the filtration area is connected to the screening drum 8, the aperture of the sieve track 2 is 0.5 μm, and a single layer of filter screen 9 is placed at an inclined angle of 20°, with a specification of 0.22 μm, and the lower section is connected to the particle size classification channel 12 with a valve.

[0039] like Figure 2 As shown, a heating device 16 is provided below the conveyor belt in the drying zone, and the heating method thereof is steam heating; the steam heating device is connected to a heat source valve 35 and a heat source pipeline 34 .

[0040] Specific process: The solid suspension containing magnetic particle-paclitaxel complex with a particle size range of 0.1-0.6μm 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. 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, and move in the direction of the conveyor belt to achieve solid-liquid separation. Through the transmission of the magnetic driven wheel, they leave the magnetic separation area and reach the filtration area. The magnetic particle-paclitaxel complex and magnetic particles with a particle size less than 0.5μm are adsorbed by the suction cup and leave the surface of the conveyor belt and enter the screening cylinder. Multi-stage separation is carried out; magnetic particle-paclitaxel complex larger than 0.5μm is washed and dispersed in the washing area in turn, 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 scraper, which accounts for 92% 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, a magnetic particle-paclitaxel complex product between 0.22-0.5μm is 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 complex and other particles with a particle size less than 0.22μm are discharged through the drainage channel, the latter accounting for 1% of the total mass of solid particles.

[0041] Matters not covered by the present invention are known technologies.

Claims

1. A continuous operation device for separating a complex containing magnetic particles, characterized in that: The device comprises: four rotating wheels arranged in a right-angle trapezoidal shape, a sieve track installed on them, forming a transmission system; two partitions are arranged at 2 / 7 and 4 / 7 of the lower part of the horizontal sieve track at the upper part of the transmission system; Among the four rotating wheels, the one on the lower left side is a driven wheel, the one on the upper left side is a magnetized driven wheel, the one on the upper right side is a driven wheel, and the one on the lower right side is a driving wheel, which is connected to the transmission device; a track tensioner is provided in the middle of the driven wheel on the lower left side and the driving wheel; From the lower left driven wheel upward 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 baffle on the left to the upper right driven wheel is the dry zone (IV); A feed port is vertically installed on the upper part of the left inclined surface of the transmission system, and a magnet parallel to the mesh crawler is installed below the inclined surface; a vacuum suction cup is provided below the horizontal mesh crawler 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 part of the mesh crawler 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 right horizontal mesh crawler section (i.e., drying section (IV)) of the second partition on the left; a scraper is provided at 1 / 4 of the right vertical belt surface section to contact with it, and 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 surface part 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, and a tilted screen is provided in the barrel, and the lowest end is connected to the particle size screening channel, and the screening cylinder 8 is connected to the drainage channel downward; The vacuum suction cup at 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 liquid discharge channel to the left, and then connected to the vacuum pump to the left, and finally extends to the liquid outlet of the leftmost liquid collector; The magnetic driven wheel comprises a magnetic shaft and a wheel body, and the wheel body comprises a bracket and a circular ring. Outside the circular 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 circular ring of the magnetic driven wheel, and the remaining 2 / 3 is magnetizable material.

2. The continuous operation device for separating a complex containing magnetic particles as claimed in claim 1, characterized in that the type of the magnet under the conveyor belt is a permanent magnet; the magnetic induction intensity is between 3000-5000 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 magnetic particle-containing complexes 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 composite 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 composite 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 products that do not meet the requirements are discharged through the drainage channel and the particle size classification channel respectively.

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