Microsphere screening device

Abstract

The utility model discloses a microsphere screening device which comprises a horizontally-arranged cylinder body and at least two rotatable first roller and second roller, the first roller is arranged in the second roller, and the circumferential wall bodies of the first roller and the second roller are both provided with a plurality of through holes. The circumferential wall bodies of the first roller and the second roller are sequentially wrapped with a first screen and a second screen, the outer wall of one side of the barrel is provided with a feeding port which communicates with an inner cavity of the first roller and is used for feeding microspheres, and the other side of the barrel is provided with a first discharging port, a second discharging port and a third discharging port which are used for discharging the microspheres; the first discharging port communicates with an inner cavity of the first roller, the second discharging port communicates with a first screening cavity defined by the wall bodies of the first roller and the second roller, and the third discharging port communicates with a second screening cavity defined by the wall bodies of the second roller and the roller body, so that manual microsphere screening can be replaced, screening is fast, and operation is easy; meanwhile, the microspheres are prevented from being polluted due to long-time exposure in the air.

Description

Technical Field

[0001] The utility model relates to the technical field of microsphere sorting, and particularly relates to a microsphere screening device. Background Art

[0002] Microspheres are small particles with different particle sizes generated by a chemical synthesis process, and the microspheres are in a wet state. If the microspheres leave the process water, the microspheres will stick to each other or deform.

[0003] In the process of microsphere production, in order to obtain microspheres with consistent particle sizes, at present, a standard sampling sieve is mainly used for manual screening, that is, an operator manually shakes the microspheres in the standard sampling sieve and flushes the microspheres with water at the same time to screen out microspheres with different particle size distributions. However, this requires the operator to repeat such single actions for a long time, resulting in a large labor intensity and easy fatigue, resulting in low screening efficiency of the microspheres. In addition, the microspheres in the standard sampling sieve are exposed to the air for a long time and are also easily contaminated and wasted. Content of the Utility Model

[0004] Therefore, in order to solve the above problems, the utility model provides a microsphere screening device, which can replace manual screening of microspheres, has a simple structure, fast screening and easy operation, ensures the screening efficiency of microspheres, and at the same time prevents the microspheres from being contaminated by long-term exposure to the air, thereby avoiding waste of microspheres.

[0005] In order to achieve the above object, the technical solution provided by the utility model is as follows:

[0006] The utility model provides a microsphere screening device, which includes a horizontally arranged cylinder body and a drum assembly arranged in the cylinder body; the drum assembly includes at least two rotatable first drums and second drums, and the first drum is arranged in the second drum; through holes penetrating through the inner and outer surfaces are formed in the circumferential wall bodies of the first drum and the second drum, a first screen is wrapped around the circumferential wall body of the first drum, a second screen is wrapped around the circumferential wall body of the second drum, and the aperture of the screen holes of the first screen is larger than that of the screen holes of the second screen; a feeding port for feeding microspheres is formed in an outer wall of the cylinder body on a side perpendicular to the circumferential rotation of the drum assembly and communicating with the inner cavity of the first drum, and a first discharging port, a second discharging port and a third discharging port for discharging microspheres are respectively formed in the other side of the cylinder body away from the feeding port; the first discharging port communicates with the inner cavity of the first drum, the second discharging port communicates with a first screening cavity formed by the circumferential wall bodies of the first drum and the second drum, and the third discharging port communicates with a second screening cavity formed by the circumferential wall bodies of the second drum and the cylinder body, so as to form a screening arrangement.

[0007] Furthermore, a distilled water inlet communicating with the inner cavity of the cylinder body is formed in the outer wall of the cylinder body.

[0008] Furthermore, the distilled water inlet is located at the top of the cylinder body and is close to the feeding port.

[0009] Furthermore, the through-hole diameters of the first roller and the second roller are larger than the diameter of the microspheres.

[0010] Furthermore, the first screen is an 80-mesh screen.

[0011] Furthermore, the second screen is a 200-mesh screen.

[0012] Furthermore, the first roller and the second roller are arranged to rotate coaxially.

[0013] Furthermore, the axial direction of the cylinder body is parallel to the ground.

[0014] Through the technical solution provided by the present utility model, the following beneficial effects are achieved:

[0015] The circumferential wall of the first roller is wrapped with a first screen and the circumferential wall of the second roller is wrapped with a second screen. During the rotation of the first roller and the second roller, the microspheres conveyed into the inner cavity of the first roller are sieved multiple times to sieve out microspheres with different particle size distributions. In this way, manual sieving of microspheres can be replaced. The structure of the entire microsphere sieving device is simple, the sieving is fast and easy to operate, and the sieving efficiency of the microspheres is ensured. At the same time, the microspheres are prevented from being polluted by long-term exposure to the air, thereby avoiding waste of microspheres. Description of the Drawings

[0016] Figure 1 Shown is a schematic diagram of the microsphere sieving device in the embodiment. Detailed Embodiments

[0017] To further illustrate the embodiments, the present utility model provides drawings. These drawings are part of the disclosure of the present utility model, mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0018] The present utility model will be further described below in conjunction with the drawings and specific embodiments.

[0019] Referring to Figure 1 Shown, this embodiment provides a microsphere sieving device, including a horizontally arranged cylinder body 4 and a roller assembly arranged in the cylinder body 4, and the axial direction of the cylinder body 4 is parallel to the ground or the left and right directions, so that the entire microsphere sieving device is installed and placed along the horizontal direction parallel to the left and right directions, that is, horizontally placed.

[0020] The roller assembly includes two rotatable first rollers 2 and second rollers 3, and the first roller 2 is arranged inside the second roller 3. The circumferential walls of the first roller 2 and the second roller 3 have a plurality of through holes penetrating the inner and outer surfaces thereof, and the through hole diameters of the first roller 2 and the second roller 3 are larger than the diameter of the microspheres to ensure that the microspheres can pass through the through holes smoothly. Of course, in other embodiments, the apertures of some through holes of the first roller 2 and the second roller 3 may not be larger than the diameter of the microspheres, and it is sufficient that the apertures of some through holes are larger than the diameter of the microspheres.

[0021] The circumferential wall of the first drum 2 is wrapped with a first sieve, and the circumferential wall of the second drum 3 is wrapped with a second sieve, and the sieve hole diameter of the first sieve is larger than the sieve hole diameter of the second sieve to ensure that the microspheres are screened according to different particle size distributions.

[0022] The right outer wall of the cylinder 4, which is perpendicular to the circumferential rotation of the roller assembly, is provided with an inlet 5 connected to the inner cavity of the first roller 2 and used for feeding microspheres. The left side of the cylinder 4 away from the inlet 5 is respectively provided with a first discharge port 6, a second discharge port 7 and a third discharge port 8 for discharging microspheres. The first discharge port 6 is connected to the inner cavity of the first roller 2, the second discharge port 7 is connected to a first screening cavity formed by the walls of the first roller 2 and the second roller 3, and the third discharge port 8 is connected to a second screening cavity formed by the walls of the second roller 3 and the cylinder 4 to form a screening arrangement.

[0023] In this embodiment, the first screen is an 80-mesh screen, the second screen is a 200-mesh screen, and the first discharge port 6, the second discharge port 7 and the third discharge port 8 are respectively equipped with discharge pipes.

[0024] The microspheres are transported from the feed port 5 into the inner cavity of the first roller 2 to prevent the microspheres from contacting the air, and then the first roller 2 and the second roller 3 are driven to rotate in the cylinder 4 by the driving mechanism of the microsphere screening device, and the cylinder 4 itself does not rotate relative to the ground. At this time, the microspheres in the first roller 2 are constantly rolling, and the microspheres with a diameter smaller than the sieve hole diameter of the first sieve pass through the through holes of the first roller 2 and the first sieve, and enter the first screening cavity formed by the first roller 2 and the second roller 3, and then the microspheres of the corresponding particle size are discharged from the second discharge port 7, and another part of the microspheres with a particle size larger than the sieve hole diameter of the first sieve moves to the left and is discharged from the first discharge port 6.

[0025] Next, the microspheres in the first screening chamber continue to roll with the cooperation of the second roller 3, and the microspheres whose diameters are smaller than the sieve holes of the second sieve pass through the through holes of the second roller 3 and the second sieve, and enter the second screening chamber formed by the inner wall of the second roller 3 and the cylinder 4, and then the microspheres of the corresponding particle size are discharged from the third discharge port 8.

[0026] The circumferential wall of the first roller 2 is wrapped with a first sieve mesh, and the circumferential wall of the second roller 3 is wrapped with a second sieve mesh. During the rotation of the first roller 2 and the second roller 3, the microspheres conveyed into the inner cavity of the first roller 2 are sieved multiple times to sieve out microspheres with different particle size distributions. In this way, manual sieving of microspheres can be replaced. The structure of the entire microsphere sieving device is simple, the sieving is fast and easy to operate, the sieving efficiency of the microspheres is ensured, and at the same time, the microspheres are prevented from being polluted by long-term exposure in the air, thereby avoiding waste of microspheres.

[0027] The microsphere sieving device of this embodiment is a sieving device that saves time and effort and has a fast sieving speed. During the sieving process, the microspheres can be fully sieved according to different particle sizes, and waste of microspheres can also be reduced.

[0028] Certainly, in other embodiments, the number of rollers of the roller assembly can also be 3 or more than 4 to correspondingly separate sieving cavities with different sieving particle sizes, and in this way, sieving in a multi-particle size distribution range can also be achieved.

[0029] In another preferred embodiment, a distilled water inlet 1 communicating with its inner cavity is provided on the outer wall of the cylinder body 4. The distilled water inlet 1 is located at the top of the cylinder body 4 and is close to the feeding port 5 to timely supplement sufficient distilled water into the inner cavity of the cylinder body 4. In this way, it can be avoided that the operator needs to add distilled water for a long time and continuously to clean the microspheres, and it can also ensure that the microspheres are fully mixed in the cylinder body 4 before sieving.

[0030] In another preferred embodiment, the first roller 2 and the second roller 3 are coaxially rotatably arranged, which is convenient for installing the first roller 2 and the second roller 3, and the structure is also relatively simple.

[0031] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the present invention in form and detail without departing from the spirit and scope of the present invention defined by the appended claims, and all of them fall within the protection scope of the present invention.

Claims

1. A microsphere screening device, characterized in that: It comprises a horizontally arranged cylinder and a roller assembly arranged in the cylinder; The roller assembly comprises at least two rotatable first rollers and a second roller, and the first roller is arranged inside the second roller; The circumferential walls of the first roller and the second roller each have a plurality of through holes penetrating the inner and outer surfaces thereof, the circumferential wall of the first roller is wrapped with a first screen, the circumferential wall of the second roller is wrapped with a second screen, and the aperture of the first screen is larger than the aperture of the second screen; The outer wall of the cylinder perpendicular to the circumferential rotation of the drum assembly is provided with an inlet connected to the inner cavity of the first drum and used for feeding microspheres, and the other side of the cylinder away from the inlet is provided with a first outlet, a second outlet and a third outlet for discharging microspheres. The first discharge port is connected to the inner cavity of the first drum, the second discharge port is connected to the first screening cavity formed by the walls of the first drum and the second drum, and the third discharge port is connected to the second screening cavity formed by the walls of the second drum and the drum body to form a screening arrangement; the outer wall of the drum body is provided with a distilled water inlet connected to its inner cavity.

2. The microsphere screening device according to claim 1, characterized in that: The distilled water inlet is located at the top of the cylinder and is close to the feed inlet.

3. The microsphere screening device according to claim 1 or 2, characterized in that: The through-hole diameters of the first roller and the second roller are larger than the diameter of the microspheres.

4. The microsphere screening device according to claim 1 or 2, characterized in that: The first sieve is an 80-mesh sieve.

5. The microsphere screening device according to claim 4, characterized in that: The second sieve is a 200-mesh sieve.

6. The microsphere screening device according to claim 1 or 2, characterized in that: The first roller and the second roller are arranged to rotate coaxially.

7. The microsphere screening device according to claim 1 or 2, characterized in that: The axial direction of the cylinder is parallel to the ground.

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