A multi-size microsphere sieving device and sieving method thereof

Abstract

This application relates to a multi-size microsphere sieving device and method. The method involves feeding the particles to be sieved into a first sieving component, followed by activating a water circulation component to impact the particles and achieve sieving. An anti-adhesion component is then activated to separate some of the adhered particles in the first sieving component, further improving the sieving yield. Next, a drying component dries the particles within the target size range selected from the first sieving component. Then, a charge adhesion component sprays electrolyte mist onto the dried particles, giving them a uniform charge. A vacuum pump then evacuates the second sieving component to a vacuum state. The second sieving component is then activated, utilizing the interaction between the charge on the particles and the magnetic field to sieve the particles again, achieving further precise sieving.

Description

Technical Field

[0001] This application relates to the field of multi-size microsphere sieving technology, and in particular to a multi-size microsphere sieving device and sieving method thereof. Background Technology

[0002] In the field of cosmetic fillers, injectable microspheres (such as polylactic acid microspheres, hydroxyapatite microspheres, polycaprolactone microspheres, etc.) are widely used in soft tissue filling, facial contouring, and skin rejuvenation treatments.

[0003] Ideally, microspheres should possess good biocompatibility, an appropriate degradation rate, and the ability to stimulate collagen regeneration to achieve a long-lasting filling effect. However, the particle size distribution of microspheres has a significant impact on therapeutic efficacy and safety.

[0004] Currently, due to limitations in microsphere preparation methods and industrial production capacity, it is impossible to perform more precise sieving of microspheres, thus failing to meet the diverse needs of cosmetic filling (such as superficial fine-area modification, mid-layer enhancement filling of contour depressions, and deep filling of bone structure shaping and support). Summary of the Invention

[0005] Therefore, it is necessary to address the limitations of traditional microsphere preparation methods and industrial production capacity, which prevent the finer sieving of microspheres and thus fail to meet the diverse needs of medical aesthetic fillers. A multi-size microsphere sieving device and its sieving method should be provided.

[0006] This application provides a multi-size microsphere sieving device, comprising:

[0007] The first screening component is hollow inside. The first screening component is used to screen particles and obtain particles within the target size range.

[0008] A water circulation component is fixedly mounted on the first screening component. The water circulation component is connected to the first screening component and is used to impact the particles in the first screening component.

[0009] An anti-adhesion component is disposed on one side of the first screening component. The anti-adhesion component is connected to the first screening component and is used to remove particles adhering to the first screening component.

[0010] A drying component is disposed at the bottom of the first screening component and is connected to the first screening component. The drying component is used to dry particles of a target size range that fall from the first screening component.

[0011] A charge attachment component is fixedly disposed on the drying component, and the charge attachment component is used to attach charge to the dried particles in the drying component;

[0012] The second screening component is disposed at the bottom of the charge attachment component. The second screening component is connected to the charge attachment component and is used to further screen the particles that fall into the charge attachment component in multiple stages.

[0013] A vacuum pump is fixedly installed on the second screening component. The vacuum pump is used to evacuate the inside of the second screening component into a vacuum state.

[0014] Furthermore, the first screening component includes:

[0015] The first screening pipe is hollow inside, and one end of the first screening pipe is fixedly connected to the de-adhesion component;

[0016] A first sealing element is disposed at the connection between the first screening pipe and the de-adhesion component. The first sealing element is used to isolate the first screening pipe from the de-adhesion component.

[0017] The first filter element is disposed inside the first screening pipe. The first filter element is disposed on the side of the first seal away from the de-adhesion component. The first filter element, the first seal, and the first screening pipe form a first screening space.

[0018] The second filter element is disposed inside the first screening pipe. The structure of the second filter element is the same as that of the first filter element. The second filter element is disposed on the side of the first filter element away from the first seal. The first filter element, the second filter element, and the first screening pipe form a second screening space.

[0019] The first sealing element is disposed on the side of the second filter element away from the first filter element. The first sealing element is fixedly connected to the first screening pipe. The first sealing element, the second filter element, and the first screening pipe form a third screening space.

[0020] Furthermore, the first seal includes:

[0021] A first sealing plate is disposed at the connection between the first screening pipe and the de-adhesion component. The first sealing plate is slidably connected to the first screening pipe and seals the first screening pipe.

[0022] The first support rod is slidably disposed on the first screening pipe, and the first support rod is fixedly connected to the first sealing plate;

[0023] The first fastening nut is sleeved on the first support rod, the first fastening nut is threadedly connected to the first support rod, and the first fastening nut abuts against the first screening pipe.

[0024] Furthermore, the first filter element includes:

[0025] The first screen is fixedly installed inside the first screening pipe, and the first screen has multiple first screen holes;

[0026] The second screen is slidably disposed on the first screen, and the second screen has a plurality of second screen holes, each of which corresponds to one of the first screen holes;

[0027] A first threaded rod is disposed on the first screening pipe, the first threaded rod is threadedly connected to the first screening pipe, and the first threaded rod is rotatably connected to the second screen.

[0028] The first support shaft is rotatably disposed in the middle of the first screen.

[0029] A first stripping plate is disposed on one side of the first screen, and the first stripping plate abuts against the first screen;

[0030] The first straight toothed plate is disposed on the other side of the first screen. The first straight toothed plate is slidably connected to the first screening pipe and is gear-driven with the first support shaft.

[0031] Furthermore, the water circulation component includes:

[0032] The first circulation pipeline is configured in a U-shape and is located at the top of the first screening pipeline. Both ends of the first circulation pipeline are connected to the first screening space.

[0033] The second circulation pipeline is configured in a U-shape and is located at the top of the first screening pipeline. Both ends of the second circulation pipeline are connected to the second screening space.

[0034] Furthermore, the anti-adhesion component includes:

[0035] The first connecting pipe is inclined and is located on the side close to the first sealing plate. One end of the first connecting pipe is connected to the first screening pipe.

[0036] A first blower is located at the bottom of the first filter element and is connected to the first screening pipe.

[0037] The first heating element is fixedly disposed at the other end of the first connecting pipe;

[0038] An ultrasonic vibrator is fixedly mounted on the first connecting pipe.

[0039] Furthermore, the drying assembly includes:

[0040] The first drying pipe is hollow inside and is located at the bottom of the first screening pipe. The first drying pipe is connected to the second screening space.

[0041] A first switch is located at the connection between the first drying pipe and the first screening pipe. The first switch is used to close or open an opening in the first drying pipe.

[0042] The second switch is located inside the first drying pipe and is used to close or open another opening of the first drying pipe.

[0043] The second blower is fixedly installed on the first drying pipe, and the second blower is connected to the first drying pipe;

[0044] The charge attachment component is fixedly mounted on the first drying pipe.

[0045] Furthermore, the second screening component includes:

[0046] The second screening pipe is located at the bottom of the first drying pipe and is connected to the first drying pipe.

[0047] The first magnetic field generator is fixedly installed at one end of the second screening pipe;

[0048] The collector is configured as a plurality of collectors, each of which is fixedly disposed at the bottom of the second screening pipe and is equidistantly arranged along the length extension direction of the second screening pipe.

[0049] The vacuum pump is fixedly installed on the second screening pipe, and the vacuum pump is connected to the inside of the second screening pipe.

[0050] Furthermore, the multi-size microsphere screening device also includes a feeding port, which is located at the top of the first screening pipe and is connected to the first screening space.

[0051] This application provides a method for screening multi-size microspheres, applied to the aforementioned multi-size microsphere screening device, characterized in that the method includes:

[0052] S001, first activate the first sealing element to seal the connection between the first screening pipe and the anti-adhesion component, then activate the first filter element and the second filter element to connect the first screening space, the second screening space and the third screening space, and feed the particles to be screened into the first screening space through the feeding port.

[0053] S002, water is injected into the first screening space through the first circulation pipeline so that the water impacts the particles in the first screening space, causing the particles to impact the first filter element, and thus some particles pass through the first filter element and enter the second screening space.

[0054] S003, when the water flow in the first screening space flows into the second screening space, the water flow impacts the particles in the second screening space, causing the particles to impact the second filter element, thereby causing some particles to pass through the second filter element and enter the third screening space.

[0055] S004, by pushing and pulling the first toothed plate back and forth, the first stripping plate is driven to clean the particles stuck on the first screen. Similarly, the second filter element can also be cleaned.

[0056] S005, rotate the first threaded rod to drive the second screen to move relative to the first screen, thereby closing all the first screen holes on the first screen. Similarly, activate the second filter element to close the first screening pipe.

[0057] S006, water is introduced into the second screening space through the second circulation pipeline to impact the particles in the second screening space so that the particles in the second screening space are evenly distributed.

[0058] S007, rotate the first threaded rod to drive the second screen to move relative to the first screen, thereby opening all the first screen holes on the first screen, and similarly activate the second filter element to open the second filter element;

[0059] S008, Repeat steps S001 to S007 three times;

[0060] S009, start the first blower, the first heating element and the first sealing element so that the particles in the first screening space are repeatedly blown towards the first heating element, thereby separating the adhering particles.

[0061] S010, turn off the first blower and the first heating element, start the ultrasonic vibrator to return the particles to the first screening space, and then close the first seal;

[0062] S011, proceed to step S002;

[0063] S012, start the first switch to allow the particles in the second screening space to fall into the first drying pipe, and start the second blower to dry the particles in the first drying pipe;

[0064] S013, restart the first switch to close the first drying pipe;

[0065] S014, the charge attachment component is activated to spray charged electrolyte mist onto the dried particles in the first drying pipe;

[0066] S015, start the first magnetic field generator and vacuum pump;

[0067] S016, activate the second switch to allow the particles in the first drying pipe to fall into different collectors.

[0068] This application relates to a multi-size microsphere sieving device and method. The method involves feeding the particles to be sieved into a first sieving component, followed by activating a water circulation component to impact the particles and achieve sieving. An anti-adhesion component is then activated to separate some of the adhered particles in the first sieving component, further improving the sieving yield. Next, a drying component dries the particles within the target size range selected from the first sieving component. Then, a charge adhesion component sprays electrolyte mist onto the dried particles, giving them a uniform charge. A vacuum pump then evacuates the second sieving component to a vacuum state. The second sieving component is then activated, utilizing the interaction between the charge on the particles and the magnetic field to sieve the particles again, achieving further precise sieving. Attached Figure Description

[0069] Figure 1 This is a schematic diagram of the structure of a multi-size microsphere sieving device provided in an embodiment of this application.

[0070] Figure 2 This is a schematic diagram showing the positional relationship between the first fastening nut and the first support rod in a multi-size microsphere sieving device provided in an embodiment of this application.

[0071] Figure 3 This is a schematic diagram showing the positional relationship between the first circulation pipeline and the second circulation pipeline in a multi-size microsphere sieving device provided in an embodiment of this application.

[0072] Figure 4 This is a schematic diagram showing the positional relationship between the first switch and the second switch in a multi-size microsphere sieving device provided in an embodiment of this application.

[0073] Figure 5 This is a schematic diagram showing the positional relationship between the second screening pipe and the first magnetic field generator in a multi-size microsphere screening device provided in an embodiment of this application.

[0074] Figure 6 This is a schematic diagram showing the positional relationship between the first screen and the second screen in a multi-size microsphere sieving device provided in an embodiment of this application.

[0075] Figure 7 This is a schematic diagram showing the positional relationship between the first support shaft and the first straight toothed plate in a multi-size microsphere sieving device provided in an embodiment of this application.

[0076] Figure label:

[0077] 11. First screening assembly; 111. First screening pipe; 112. First sealing element; 112a. First sealing plate; 112b. First support rod; 112c. First fastening nut; 113. First filter element; 113a. First screen; 113b. Second screen; 113c. First threaded rod; 113d. First support shaft; 113e. First stripping plate; 113f. First straight toothed plate; 114. Second filter element; 115. First sealing element; 115a. Sealing plate; 115b. Drain pipe; 12. Water circulation assembly; 121. First circulation pipeline; 122. Second circulation pipeline; 13. De-adhesion assembly; 131. First connecting pipe; 132. First blower; 133. First heating element; 134. Ultrasonic vibrator; 14. Drying assembly; 141. First drying pipe; 142. First switch; 143. Second switch; 144. Second blower; 15. Charge adhesion assembly; 16. Second screening assembly; 161. Second screening pipe; 162. First magnetic field generator; 163. Collector; 17. Vacuum pump; 18. First screening space; 19. Second screening space; 20. Third screening space; 21. Feed port; 22. First screen hole; 23. Second screen hole. Detailed Implementation

[0078] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0079] like Figures 1 to 2 As shown, in one embodiment of this application, the multi-size microsphere sieving device includes: a first sieving component 11, a water circulation component 12, an anti-adhesion component 13, a drying component 14, a charge adhesion component 15, a second sieving component 16, and a vacuum pump 17.

[0080] The first screening component 11 is hollow inside. The first screening component 11 is used to screen particles and obtain particles within the target size range.

[0081] The water circulation component 12 is fixedly mounted on the first screening component 11. The water circulation component 12 is connected to the first screening component 11 and is used to impact the particles in the first screening component 11.

[0082] The de-adhesion component 13 is disposed on one side of the first screening component 11. The de-adhesion component 13 is connected to the first screening component 11 and is used to remove particles adhering to the first screening component 11.

[0083] The drying component 14 is disposed at the bottom of the first screening component 11 and is connected to the first screening component 11. The drying component 14 is used to dry particles of the target size range that fall from the first screening component 11.

[0084] The charge attachment component 15 is fixedly disposed on the drying component 14, and the charge attachment component 15 is used to attach charge to the dried particles in the drying component 14.

[0085] The second screening component 16 is disposed at the bottom of the charge attachment component 15 and is connected to the charge attachment component 15. The second screening component 16 is used to further screen the particles that fall into the charge attachment component 15 in multiple stages.

[0086] The vacuum pump 17 is fixedly mounted on the second screening component 16, and the vacuum pump 17 is used to evacuate the interior of the second screening component 16 into a vacuum state.

[0087] Specifically, the charge attachment component 15 is an electrolyte aerosol or surfactant aerosol spray bottle, which will not be elaborated on here.

[0088] In this embodiment, the particles to be screened are fed into the first screening component 11, and then the water circulation component 12 is activated to impact the particles in the first screening component 11 to achieve particle screening. The de-adhesion component 13 is activated to separate some of the attached particles in the first screening component 11, further improving the screening yield. Next, the drying component 14 dries the particles within the target size range screened in the first screening component 11. Then, the charge adhesion component 15 is activated to spray electrolyte mist onto the dried particles, so that the particles have a uniform charge. Then, the vacuum pump 17 evacuates the second screening component 16 to a vacuum state. The second screening component 16 is then activated to screen the particles again using the force between the charge on the particles and the magnetic field, to complete further precise screening.

[0089] like Figures 3 to 6 As shown, in one embodiment of this application, the first screening component 11 includes: a first screening pipe 111, a first sealing element 112, a first filter element 113, a second filter element 114, and a first sealing element 115.

[0090] The first screening pipe 111 is hollow inside, and one end of the first screening pipe 111 is fixedly connected to the de-adhesion component 13.

[0091] The first sealing element 112 is disposed at the connection between the first screening pipe 111 and the de-adhesion component 13, and the first sealing element 112 is used to isolate the first screening pipe 111 and the de-adhesion component 13.

[0092] The first filter element 113 is disposed inside the first screening pipe 111. The first filter element 113 is disposed on the side of the first seal 112 away from the de-adhesion component 13. The first filter element 113, the first seal 112 and the first screening pipe 111 form a first screening space 18.

[0093] The second filter element 114 is disposed inside the first screening pipe 111. The structure of the second filter element 114 is the same as that of the first filter element 113. The second filter element 114 is disposed on the side of the first filter element 113 away from the first seal 112. The first filter element 113, the second filter element 114 and the first screening pipe 111 form a second screening space 19.

[0094] The first sealing member 115 is disposed on the side of the second filter element 114 away from the first filter element 113. The first sealing member 115 is fixedly connected to the first screening pipe 111. The first sealing member 115, the second filter element 114 and the first screening pipe 111 form a third screening space 20.

[0095] Specifically, the multi-size microsphere screening device also includes a feeding port 21, which is located at the top of the first screening pipe 111 and is connected to the first screening space 18.

[0096] The sieve aperture of the first filter element 113 is D, and the sieve aperture of the second filter element 114 is d, where D is greater than d. Therefore, after the overall sieve is completed, the particle distribution in the second sieve space 19 is between D and d.

[0097] The first sealing element 115 includes a sealing plate 115a and a drain pipe 115b. The sealing plate 115a is fixedly connected to the first screening pipe 111 by bolts, and the drain pipe 115b passes through the sealing plate 115a and communicates with the interior of the first screening pipe 111.

[0098] In this embodiment, particles are graded and filtered by the first filter element 113 and the second filter element 114 so that the size difference of the particles finally filtered into the second screening space 19 is minimal.

[0099] like Figures 2 to 3 As shown, in one embodiment of this application, the first sealing member 112 includes: a first sealing plate 112a, a first support rod 112b, and a first fastening nut 112c.

[0100] The first sealing plate 112a is disposed at the connection between the first screening pipe 111 and the de-adhesion component 13. The first sealing plate 112a is slidably connected to the first screening pipe 111 and seals the first screening pipe 111.

[0101] The first support rod 112b is slidably disposed on the first screening pipe 111, and the first support rod 112b is fixedly connected to the first sealing plate 112a.

[0102] The first fastening nut 112c is sleeved on the first support rod 112b, the first fastening nut 112c is threadedly connected to the first support rod 112b, and the first fastening nut 112c abuts against the first screening pipe 111.

[0103] In this embodiment, the first fastening nut 112c is rotated to move on the first support rod 112b, thereby facilitating the control of the sliding of the first support rod 112b and the first sealing plate 112a on the first screening pipe 111.

[0104] like Figures 6 to 7 As shown, in one embodiment of this application, the first filter element 113 includes: a first screen 113a, a second screen 113b, a first threaded rod 113c, a first support shaft 113d, a first stripping plate 113e, and a first straight toothed plate 113f.

[0105] The first screen 113a is fixedly installed inside the first screening pipe 111, and the first screen 113a has a plurality of first screen holes 22.

[0106] The second screen 113b is slidably disposed on the first screen 113a. The second screen 113b has a plurality of second screen holes 23, each of which corresponds to one of the first screen holes 22.

[0107] The first threaded rod 113c is disposed on the first screening pipe 111, the first threaded rod 113c is threadedly connected to the first screening pipe 111, and the first threaded rod 113c is rotatably connected to the second screen 113b.

[0108] The first support shaft 113d is rotatably disposed in the middle of the first screen 113a.

[0109] The first peeling plate 113e is disposed on one side of the first screen 113a, and the first peeling plate 113e abuts against the first screen 113a.

[0110] The first straight toothed plate 113f is disposed on the other side of the first screen 113a. The first straight toothed plate 113f is slidably connected to the first screening pipe 111. The first straight toothed plate 113f is gear-driven with the first support shaft 113d.

[0111] In this embodiment, the depth to which the first threaded rod 113c is inserted into the first screening pipe 111 is controlled by rotating the first threaded rod 113c. At the same time, the first threaded rod 113c will drive the second screen 113b to move relative to the first screen 113a, so as to control the opening or closing of the entire first filter element 113.

[0112] By pushing and pulling the first toothed plate 113f, the gear transmission between the first toothed plate 113f and the first support shaft 113d is utilized to drive the first support shaft 113d and the first stripping plate 113e to rotate, so as to clean the particles stuck on the first screen 113a.

[0113] like Figures 3 to 4 As shown, in one embodiment of this application, the water circulation component 12 includes: a first circulation pipe 121 and a second circulation pipe 122.

[0114] The first circulation pipe 121 is U-shaped and is located at the top of the first screening pipe 111. Both ends of the first circulation pipe 121 are connected to the first screening space 18.

[0115] The second circulation pipe 122 is U-shaped and is located at the top of the first screening pipe 111. Both ends of the second circulation pipe 122 are connected to the second screening space 19.

[0116] In this embodiment, water is supplied to the first screening space 18 through the first circulation pipeline 121, and water is supplied to the second screening space 19 through the second circulation pipeline 122.

[0117] like Figure 4 As shown, in one embodiment of this application, the anti-adhesion assembly 13 includes: a first connecting pipe 131, a first blower 132, a first heating element 133, and an ultrasonic vibrator 134.

[0118] The first connecting pipe 131 is inclined and is located on the side close to the first sealing plate 112a. One end of the first connecting pipe 131 is connected to the first screening pipe 111.

[0119] The first blower 132 is located at the bottom of the first filter element 113, and the first blower 132 is connected to the first screening pipe 111.

[0120] The first heating element 133 is fixedly disposed at the other end of the first connecting pipe 131.

[0121] The ultrasonic vibrator 134 is fixedly mounted on the first connecting pipe 131.

[0122] Specifically, the first heating element 133 is an electric heating rod, which will not be elaborated on here.

[0123] The top of the first connecting pipe 131 has multiple vent holes.

[0124] In this embodiment, the first heating element 133 and the first blower 132 are activated to dry the particles in the first screening space 18 so that the particles attached together can be separated. After the first heating element 133 and the first blower 132 have been running for a period of time, they stop running. Then, the ultrasonic vibrator 134 is activated so that the particles in the first connecting pipe 131 fall into the first screening space 18. At the same time, the ultrasonic vibrator 134 can further help to separate the particles attached together.

[0125] like Figures 4 to 5 As shown, in one embodiment of this application, the drying assembly 14 includes: a first drying pipe 141, a first switch 142, a second switch 143, and a second blower 144.

[0126] The first drying pipe 141 is hollow inside and is located at the bottom of the first screening pipe 111. The first drying pipe 141 is connected to the second screening space 19.

[0127] The first switch 142 is located at the connection between the first drying pipe 141 and the first screening pipe 111. The first switch 142 is used to close or open an opening in the first drying pipe 141.

[0128] The second switch 143 is disposed inside the first drying pipe 141, and the second switch 143 is used to close or open another opening of the first drying pipe 141.

[0129] The second blower 144 is fixedly installed on the first drying pipe 141, and the second blower 144 is connected to the first drying pipe 141.

[0130] The charge attachment component 15 is fixedly mounted on the first drying pipe 141.

[0131] The second screening assembly 16 includes: a second screening pipe 161, a first magnetic field generator 162, and a plurality of collectors 163.

[0132] The second screening pipe 161 is located at the bottom of the first drying pipe 141 and is connected to the first drying pipe 141.

[0133] The first magnetic field generator 162 is fixedly installed at one end of the second screening pipe 161.

[0134] The collector 163 is configured as a plurality of collectors, and the plurality of collectors 163 are fixedly disposed at the bottom of the second screening pipe 161, and the plurality of collectors 163 are equidistantly arranged along the length extension direction of the second screening pipe 161.

[0135] The vacuum pump 17 is fixedly installed on the second screening pipe 161, and the vacuum pump 17 is internally connected to the second screening pipe 161.

[0136] Specifically, the structure of the first switch 142 is the same as that of the second switch 143. The first switch 142 includes a first rotating plate and a first electric push rod. The first rotating plate is rotatably disposed inside the first drying pipe 141, and the first rotating plate closes the first drying pipe 141.

[0137] The first electric actuator is located inside the first drying pipe 141. One end of the first electric actuator is rotatably connected to the first rotating plate, and the other end of the first electric actuator is rotatably connected to the first drying pipe.

[0138] In this embodiment, by activating the first switch 142, particles of relatively uniform size in the second screening space 19 fall into the first drying pipe 141. Then, the second blower 144 is activated to dry the particles in the first drying pipe 141. Then, the first switch 142 is activated again to close the first drying pipe 141.

[0139] The charge attachment assembly 15 is activated to attach a uniform charge to the particles in the first drying pipe 141.

[0140] Then, the vacuum pump 17 is started to evacuate the second screening pipe 161 and the first drying pipe 141. Next, the first magnetic field generator 162 is started, and finally the second switch 143 is started to make the particles in the first drying pipe 141 fall evenly. Under the action of the magnetic field generated by the first magnetic field generator 162, the particles in the first drying pipe 141 are screened again into different collectors 163.

[0141] Specifically, we consider the density of each particle to be equal, and we consider each particle to be approximately a sphere.

[0142] The force analysis of the particles in the first drying pipe 141 as they enter the vacuum second screening pipe 161 is as follows:

[0143]

[0144] Where a is the vertical downward acceleration of the particle; F is the gravity acting on the particle; m is the mass of the particle; g is the gravitational acceleration; therefore, the acceleration of particles of different sizes is equal to g; the time taken for each particle to fall to the ground from entering the second screening pipe 161 of the vacuum is equal, which is t.

[0145] The acceleration of the particle in the horizontal direction is:

[0146]

[0147] Where F2 is the electric force acting on the particle; m is the mass of the particle; the electric force is proportional to the charge intensity, which in turn is proportional to the surface area of ​​the particle, thus the formula can be derived:

[0148]

[0149] Where r is the radius of the particle, and the formula for the mass of the particle is:

[0150]

[0151] in, Let be the density of the particles. Since particles of the same material have the same density, the acceleration of the particles in the horizontal direction is:

[0152]

[0153] Where A is a constant, meaning the horizontal particle acceleration is proportional to the reciprocal of the particle size. The formula for calculating the horizontal distance the microspheres move is:

[0154]

[0155] The distance a particle travels horizontally is directly proportional to the reciprocal of its size. The larger the particle radius, the closer it lands to the first magnetic field generator 162; conversely, the smaller the microsphere radius, the farther it lands. This allows for the calculation of the precise size of the particles at different locations within the electric field, thus enabling more precise particle size separation.

[0156] In one embodiment of this application, a method for sieving multi-size microspheres is also provided, applied to the multi-size microsphere sieving device described above, characterized in that the multi-size microsphere sieving method includes:

[0157] S001, firstly activate the first sealing element 112 to seal the connection between the first screening pipe 111 and the de-adhesion component 13, then activate the first filter element 113 and the second filter element 114 to connect the first screening space 18, the second screening space 19 and the third screening space 20, and feed the particles to be screened into the first screening space 18 through the feeding port 21.

[0158] S002, water is injected into the first screening space 18 through the first circulation pipe 121 so that the water impacts the particles in the first screening space 18, causing the particles to impact the first filter element 113, thereby allowing some particles to pass through the first filter element 113 and enter the second screening space 19.

[0159] S003, when the water flow in the first screening space 18 flows into the second screening space 19, the water flow impacts the particles in the second screening space 19, causing the particles to impact the second filter element 114, thereby causing some particles to pass through the second filter element 114 and enter the third screening space 20.

[0160] S004, by pushing and pulling the first toothed plate 113f back and forth, the first stripping plate 113e is driven to clean the particles stuck on the first screen 113a. Similarly, the second filter element 114 can also be cleaned.

[0161] S005, rotate the first threaded rod 113c to drive the second screen 113b to move relative to the first screen 113a, thereby closing all the first screen holes 22 on the first screen 113a. Similarly, activate the second filter element 114 to close the first screening pipe 111.

[0162] S006, water is introduced into the second screening space 19 through the second circulation pipe 122 to impact the particles in the second screening space 19 so that the particles in the second screening space 19 are evenly distributed.

[0163] S007, rotate the first threaded rod 113c to drive the second screen 113b to move relative to the first screen 113a, thereby opening all the first screen holes 22 on the first screen 113a. Similarly, start the second filter element 114 to open the second filter element 114.

[0164] S008, Repeat steps S001 to S007 three times.

[0165] S009, start the first blower 132, the first heating element 133 and the first sealing element 112 so that the particles in the first screening space 18 are repeatedly blown towards the first heating element 133, thereby separating the adhering particles.

[0166] S010, turn off the first blower 132 and the first heating element 133, start the ultrasonic vibrator 134 to return the particles to the first screening space 18, and then close the first seal 112.

[0167] S011, proceed to step S002.

[0168] S012, start the first switch 142 so that the particles in the second screening space 19 fall into the first drying pipe 141, and start the second blower 144 to dry the particles in the first drying pipe 141.

[0169] S013, the first switch 142 is activated again to close the first drying pipe 141.

[0170] S014, the charge attachment component 15 is activated to spray charged electrolyte mist onto the dried particles in the first drying pipe 141.

[0171] S015, start the first magnetic field generator 162 and vacuum pump 17.

[0172] S016, activate the second switch 143 to allow the particles in the first drying pipe 141 to fall into different collectors 163.

[0173] In this embodiment, the first sealing element 112 is activated first to seal the connection between the first screening pipe 111 and the anti-adhesion component 13. Then, the first filter element 113 and the second filter element 114 are activated to connect the first screening space 18, the second screening space 19 and the third screening space 20. The particles to be screened are fed into the first screening space 18 through the feeding port 21.

[0174] Water is injected into the first screening space 18 through the first circulation pipe 121, causing the water flow to impact the particles in the first screening space 18. This impact causes the particles to impact the first filter element 113, and some particles pass through the first filter element 113 and enter the second screening space 19. When the water flow from the first screening space 18 into the second screening space 19, the water flow impacts the particles in the second screening space 19, causing the particles to impact the second filter element 114, and some particles pass through the second filter element 114 and enter the third screening space 20.

[0175] By pushing and pulling the first toothed plate 113f back and forth, the first stripping plate 113e is driven to clean the particles stuck on the first screen 113a. Similarly, the second filter element 114 can also be cleaned.

[0176] Rotating the first threaded rod 113c causes the second screen 113b to move relative to the first screen 113a, thereby closing all the first screen holes 22 on the first screen 113a. Similarly, the second filter element 114 is activated to close the first screening pipe 111. Water is introduced into the second screening space 19 through the second circulation pipe 122 to impact the particles in the second screening space 19, thereby ensuring a uniform distribution of particles. Rotating the first threaded rod 113c causes the second screen 113b to move relative to the first screen 113a, thereby opening all the first screen holes 22 on the first screen 113a. Similarly, the second filter element 114 is activated to open.

[0177] Repeat steps S001 to S007 three times.

[0178] Start the first blower 132, the first heating element 133, and the first sealing element 112 to reciprocate the particles in the first screening space 18 towards the first heating element 133, thereby separating the adhering particles. Turn off the first blower 132 and the first heating element 133, start the ultrasonic vibrator 134 to return the particles to the first screening space 18, and then close the first sealing element 112. Proceed to step S002. Start the first switch 142 to allow the particles in the second screening space 19 to fall into the first drying pipe 141, and then start the first switch 142 again to close the first drying pipe 141.

[0179] The second blower 144 is started to dry the particles in the first drying pipe 141. The charge adhesion assembly 15 is started to spray the dried particles in the first drying pipe 141 with charged electrolyte mist. The first magnetic field generator 162 and vacuum pump 17 are started. The second switch 143 is started to allow the particles in the first drying pipe 141 to fall into different collectors 163.

[0180] The technical features of the above embodiments can be combined arbitrarily, and the execution order of the method steps is not restricted. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0181] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A multi-size microsphere sieving device, characterized in that, The multi-size microsphere sieving device includes: The first screening component is hollow inside. The first screening component is used to screen particles and obtain particles within the target size range. A water circulation component is fixedly mounted on the first screening component. The water circulation component is connected to the first screening component and is used to impact the particles in the first screening component. An anti-adhesion component is disposed on one side of the first screening component. The anti-adhesion component is connected to the first screening component and is used to remove particles adhering to the first screening component. A drying component is disposed at the bottom of the first screening component and is connected to the first screening component. The drying component is used to dry particles of a target size range that fall from the first screening component. A charge attachment component is fixedly disposed on the drying component, and the charge attachment component is used to attach charge to the dried particles in the drying component; The second screening component is disposed at the bottom of the charge attachment component. The second screening component is connected to the charge attachment component and is used to further screen the particles that fall into the charge attachment component in multiple stages. A vacuum pump is fixedly installed on the second screening component. The vacuum pump is used to evacuate the inside of the second screening component into a vacuum state. The first screening component includes: The first screening pipe is hollow inside, and one end of the first screening pipe is fixedly connected to the de-adhesion component; A first sealing element is disposed at the connection between the first screening pipe and the de-adhesion component. The first sealing element is used to isolate the first screening pipe from the de-adhesion component. The first filter element is disposed inside the first screening pipe. The first filter element is disposed on the side of the first seal away from the de-adhesion component. The first filter element, the first seal, and the first screening pipe form a first screening space. The second filter element is disposed inside the first screening pipe. The structure of the second filter element is the same as that of the first filter element. The second filter element is disposed on the side of the first filter element away from the first seal. The first filter element, the second filter element, and the first screening pipe form a second screening space. The first sealing element is disposed on the side of the second filter element away from the first filter element. The first sealing element is fixedly connected to the first screening pipe. The first sealing element, the second filter element, and the first screening pipe form a third screening space.

2. The multi-size microsphere sieving device according to claim 1, characterized in that, The first seal includes: A first sealing plate is disposed at the connection between the first screening pipe and the de-adhesion component. The first sealing plate is slidably connected to the first screening pipe and seals the first screening pipe. The first support rod is slidably disposed on the first screening pipe, and the first support rod is fixedly connected to the first sealing plate; The first fastening nut is sleeved on the first support rod, the first fastening nut is threadedly connected to the first support rod, and the first fastening nut abuts against the first screening pipe.

3. The multi-size microsphere sieving device according to claim 2, characterized in that, The first filter element includes: The first screen is fixedly installed inside the first screening pipe, and the first screen has multiple first screen holes; The second screen is slidably disposed on the first screen, and the second screen has a plurality of second screen holes, each of which corresponds to one of the first screen holes; A first threaded rod is disposed on the first screening pipe, the first threaded rod is threadedly connected to the first screening pipe, and the first threaded rod is rotatably connected to the second screen. The first support shaft is rotatably disposed in the middle of the first screen. A first stripping plate is disposed on one side of the first screen, and the first stripping plate abuts against the first screen; The first straight toothed plate is disposed on the other side of the first screen. The first straight toothed plate is slidably connected to the first screening pipe and is gear-driven with the first support shaft.

4. The multi-size microsphere sieving device according to claim 3, characterized in that, The water circulation component includes: The first circulation pipeline is configured in a U-shape and is located at the top of the first screening pipeline. Both ends of the first circulation pipeline are connected to the first screening space. The second circulation pipeline is configured in a U-shape and is located at the top of the first screening pipeline. Both ends of the second circulation pipeline are connected to the second screening space.

5. The multi-size microsphere sieving device according to claim 4, characterized in that, The anti-adhesion component includes: The first connecting pipe is inclined and is located on the side close to the first sealing plate. One end of the first connecting pipe is connected to the first screening pipe. A first blower is located at the bottom of the first filter element and is connected to the first screening pipe. The first heating element is fixedly disposed at the other end of the first connecting pipe; An ultrasonic vibrator is fixedly mounted on the first connecting pipe.

6. The multi-size microsphere sieving device according to claim 5, characterized in that, The drying assembly includes: The first drying pipe is hollow inside and is located at the bottom of the first screening pipe. The first drying pipe is connected to the second screening space. A first switch is located at the connection between the first drying pipe and the first screening pipe. The first switch is used to close or open an opening in the first drying pipe. The second switch is located inside the first drying pipe and is used to close or open another opening of the first drying pipe. The second blower is fixedly installed on the first drying pipe, and the second blower is connected to the first drying pipe; The charge attachment component is fixedly mounted on the first drying pipe.

7. The multi-size microsphere sieving device according to claim 6, characterized in that, The second screening component includes: The second screening pipe is located at the bottom of the first drying pipe and is connected to the first drying pipe. The first magnetic field generator is fixedly installed at one end of the second screening pipe; The collector is configured as a plurality of collectors, each of which is fixedly disposed at the bottom of the second screening pipe and is equidistantly arranged along the length extension direction of the second screening pipe. The vacuum pump is fixedly installed on the second screening pipe, and the vacuum pump is connected to the inside of the second screening pipe.

8. The multi-size microsphere sieving device according to claim 7, characterized in that, The multi-size microsphere screening device also includes a feeding port, which is located at the top of the first screening pipe and is connected to the first screening space.

9. A method for sieving multi-size microspheres, applied to the multi-size microsphere sieving device of claim 8, characterized in that, The multi-size microsphere sieving method includes: S001, first activate the first sealing element to seal the connection between the first screening pipe and the anti-adhesion component, then activate the first filter element and the second filter element to connect the first screening space, the second screening space and the third screening space, and feed the particles to be screened into the first screening space through the feeding port. S002, water is injected into the first screening space through the first circulation pipeline so that the water impacts the particles in the first screening space, causing the particles to impact the first filter element, and thus some particles pass through the first filter element and enter the second screening space. S003, when the water flow in the first screening space flows into the second screening space, the water flow impacts the particles in the second screening space, causing the particles to impact the second filter element, thereby causing some particles to pass through the second filter element and enter the third screening space. S004, by pushing and pulling the first toothed plate back and forth, the first stripping plate is driven to clean the particles stuck on the first screen. Similarly, the second filter element can also be cleaned. S005, rotate the first threaded rod to drive the second screen to move relative to the first screen, thereby closing all the first screen holes on the first screen. Similarly, activate the second filter element to close the first screening pipe. S006, water is introduced into the second screening space through the second circulation pipeline to impact the particles in the second screening space so that the particles in the second screening space are evenly distributed. S007, rotate the first threaded rod to drive the second screen to move relative to the first screen, thereby opening all the first screen holes on the first screen, and similarly activate the second filter element to open the second filter element; S008, Repeat steps S001 to S007 three times; S009, start the first blower, the first heating element and the first sealing element so that the particles in the first screening space are repeatedly blown towards the first heating element, thereby separating the adhering particles. S010, turn off the first blower and the first heating element, start the ultrasonic vibrator to return the particles to the first screening space, and then close the first seal; S011, proceed to step S002; S012, start the first switch to allow the particles in the second screening space to fall into the first drying pipe, and start the second blower to dry the particles in the first drying pipe; S013, restart the first switch to close the first drying pipe; S014, the charge attachment component is activated to spray charged electrolyte mist onto the dried particles in the first drying pipe; S015, start the first magnetic field generator and vacuum pump; S016, activate the second switch to allow the particles in the first drying pipe to fall into different collectors.

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