Continuous screening process device for silica powder production
By designing a three-layer staggered screening network structure and a continuous screening process device for producing silicon micropowders equipped with bulk and pushing components, the problem of difficulty in achieving continuous screening in the prior art is solved, the screening efficiency and effect are improved, and the uniformity of cutting is ensured.
Patent Information
- Application Number
- CN202421168123.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-27
AI Technical Summary
In the existing silicon micropowder production process, it is difficult to achieve continuous screening, resulting in low screening efficiency and requires multiple screening, which is troublesome and inefficient.
A continuous screening process device for the production of silicon micropowder is designed, adopting a three-layer staggered screening mesh structure, the aperture and inclination are reduced in sequence, and bulk material components and push material components are equipped to achieve continuous screening and uniform discharge.
The screening can be divided into four levels of feeding at a time, which improves the screening efficiency and effect, reduces the subsequent screening decline speed, improves the screening effect of finer silicon powder, and ensures the uniformity of the cutting.
Smart Images
Figure CN222551303U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of silicon micropowder production, in particular to a continuous screening process device for silicon micropowder production. Background Art
[0002] Silica powder is a high-performance inorganic non-metallic material, the main component of which is high-purity silicon dioxide. It is made by subjecting natural quartz or fused quartz to a complex processing flow, including crushing, ball milling (or air milling), flotation, acid washing and purification, high-purity water treatment and a series of fine processes.
[0003] In the production process of silicon micropowder, silicon micropowders of different sizes need to be classified, but the existing screening devices for silicon micropowder mostly need to use screening devices with different precisions for multiple screenings, which makes it difficult to achieve continuous screening, resulting in the screening of silicon micropowder being more troublesome and the screening efficiency being low. Based on this, a continuous screening process device for silicon micropowder production is proposed herein. Utility Model Content
[0004] The utility model aims to provide a continuous screening process device for producing silicon micropowder to solve the above-mentioned technical deficiencies.
[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a continuous screening process device for producing silicon micropowder, comprising:
[0006] A screening box, wherein a controller is installed on the outer wall of the screening box, and a first screening net, a second screening net and a third screening net are staggered from top to bottom inside the screening box, the apertures and inclinations of the first screening net, the second screening net and the third screening net are successively reduced, a feeding hopper is installed at the top of the screening box and above the high end of the first screening net, a bulk material assembly is installed in the feeding hopper, and a fourth discharge port is opened at the bottom end of the outer wall of the screening box;
[0007] A pushing assembly is used to push the silicon micropowder at the bottom of the screening box out from the fourth discharge port.
[0008] Preferably, the pusher assembly comprises:
[0009] An electric telescopic rod, which is installed through the outer wall of the screening box and is located on a side facing the fourth discharge port;
[0010] A push plate is installed at the inner end of the electric telescopic rod, and the bottom end of the push plate contacts the inner bottom of the screening box.
[0011] Preferably, the bulk material assembly comprises a connecting shaft and a plurality of bulk material plates, the connecting shaft is mounted at the inner middle of the feeding hopper via a bearing, and the plurality of bulk material plates are fixed on the outer circumferential surface of the connecting shaft in an annular array.
[0012] Preferably, the outer wall of the bulk material plate is provided with a bulk material groove with an open end.
[0013] Preferably, a first discharge port is provided on the outer wall of the screening box and at the bottom end of the first screening net, and a first material guide plate is connected to the outer end of the first discharge port.
[0014] Preferably, a second discharge port is provided on the outer wall of the screening box and at the bottom end of the second screening net, and a second material guide plate is connected to the outer end of the second discharge port.
[0015] Preferably, a third discharge port is provided on the outer wall of the screening box and at the bottom end of the third screening net, and a third material guide plate is connected to the outer end of the third discharge port.
[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:
[0017] 1. The utility model can divide silicon micropowder into four grades by setting a continuous three-layer screening structure, and the screening is more convenient and quick. Among them, the setting of the first screening net, the second screening net and the third screening net with decreasing inclinations in turn can reduce the sliding speed of the subsequent screening silicon micropowder, increase the residence time on the screening net, and thus improve the screening effect of finer silicon micropowder.
[0018] 2. The utility model sets a bulk material assembly. After the silicon micropowder to be screened is added from the feeding hopper, the silicon micropowder impacts the bulk material plate, which can drive the connecting shaft to rotate. When the bulk material plate rotates downward, the silicon micropowder in the bulk material groove can be poured out. This cycle is carried out to ensure the uniformity of material feeding, avoid the silicon micropowder from falling in a pile and causing damage to the first screening net, and improve the screening effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0020] Figure 1 This is one of the appearance diagrams of the utility model;
[0021] Figure 2 This is the second appearance diagram of the utility model;
[0022] Figure 3It is a cross-sectional view of the utility model;
[0023] Figure 4 It is a structural schematic diagram of the bulk material assembly of the utility model.
[0024] Description of reference numerals:
[0025] 1. Screening box; 2. Controller; 3. Feed hopper; 4. Bulk material assembly; 41. Connecting shaft; 42. Bulk material plate; 43. Bulk material groove; 5. First screening net; 6. Second screening net; 7. Third screening net; 8. First discharge port; 9. First guide plate; 10. Second discharge port; 11. Second guide plate; 12. Third discharge port; 13. Third guide plate; 14. Pushing plate; 15. Electric telescopic rod; 16. Fourth discharge port. DETAILED DESCRIPTION
[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0027] Figure 1 and Figure 2 All of them are appearance diagrams of the utility model, and combined with Figure 3 As shown, the continuous screening process device for producing silicon micropowder comprises a screening box 1, a controller 2 is installed on the outer wall of the screening box 1, and the interior of the screening box 1 is staggered from top to bottom with a first screening net 5, a second screening net 6 and a third screening net 7, the apertures of the first screening net 5, the second screening net 6 and the third screening net 7 are successively reduced, and the inclinations of the first screening net 5, the second screening net 6 and the third screening net 7 are also successively reduced, a feeding hopper 3 is installed at the top of the screening box 1 and above the high end of the first screening net 5, a bulk material assembly 4 is installed in the feeding hopper 3, and a fourth discharge port 16 is opened at the bottom end of the outer wall of the screening box 1;
[0028] A first discharge port 8 is provided on the outer wall of the screening box 1 and at the bottom end of the first screening net 5 , and a first material guide plate 9 is connected to the outer end of the first discharge port 8 .
[0029] A second discharge port 10 is provided on the outer wall of the screening box 1 and at the bottom end of the second screening net 6 , and a second material guide plate 11 is connected to the outer end of the second discharge port 10 .
[0030] A third discharge port 12 is provided on the outer wall of the screening box 1 and at the bottom end of the third screening net 7 , and a third material guide plate 13 is connected to the outer end of the third discharge port 12 .
[0031] The length of the first guide plate 9 is longer than the length of the third guide plate 13 .
[0032] See also Figure 4As shown, the bulk material assembly 4 includes a connecting shaft 41 and a plurality of bulk material plates 42. The connecting shaft 41 is installed in the middle of the inner part of the feeding hopper 3 through a bearing. The plurality of bulk material plates 42 are fixed on the outer circumferential surface of the connecting shaft 41 in a circular array. The outer wall of the bulk material plate 42 is provided with a bulk material groove 43 with an open end.
[0033] Based on the above technical solutions:
[0034] During specific use, the silicon micropowder to be screened is added from the feeding hopper 3. Through the action of the bulk material assembly 4, the silicon micropowder can be orderly dropped to the high end of the first screening net 5, so as to avoid the first screening net 5 being damaged due to the falling of the silicon micropowder in a pile, and the screening effect can be improved. The silicon micropowder dropped to the first screening net 5 slides down along the inclined surface under the action of gravity. The silicon micropowder with a particle size smaller than the aperture of the first screening net 5 can pass through and drop to the second screening net 6. The silicon micropowder with a particle size larger than the aperture of the first screening net 5 slides down and slides out from the first discharge port 8, and can be collected by receiving the material from the first guide plate 9. The silicon micropowder dropped to the second screening net 6 can be discharged from the first discharge port 8. The micropowder also slides down the inclined surface under the action of gravity. Particles with a size smaller than the aperture of the second screening net 6 can fall to the third screening net 7, and particles with a size larger than the aperture of the second screening net 6 can slide down and slide out from the second discharge port 10, and can be collected by receiving the material from the second guide plate 11. The silicon micropowder that falls on the second screening net 6 also slides down the inclined surface under the action of gravity. Particles with a size smaller than the aperture of the third screening net 7 can fall to the bottom of the screening box 1, and particles with a size larger than the aperture of the third screening net 7 can slide down and slide out from the third discharge port 12, and can be collected by receiving the material from the third guide plate 13.
[0035] Among them, the arrangement of successively decreasing inclinations of the first screening net 5, the second screening net 6 and the third screening net 7 can reduce the sliding speed of the subsequently screened silicon micropowder, increase the residence time on the screening net, and thus improve the screening effect of finer silicon micropowder.
[0036] Secondly, after the silicon micropowder to be screened is added from the feeding hopper 3, the silicon micropowder impacts the bulk material plate 42, which can drive the connecting shaft 41 to rotate. When the bulk material plate 42 rotates downward, the silicon micropowder in the bulk material groove 43 can be poured out. This cycle is repeated to ensure the uniformity of material feeding.
[0037] In addition, the continuous screening process device for producing silicon micropowder further comprises a pushing assembly, which is used to push the silicon micropowder at the bottom of the screening box 1 out from the fourth discharge port 16 .
[0038] Among them, see Figure 3 As shown, the pusher assembly includes:
[0039] An electric telescopic rod 15, which is installed through the outer wall of the screening box 1, and is located on a side facing the fourth discharge port 16, and is electrically connected to the controller 2;
[0040] The push plate 14 is installed at the inner end of the electric telescopic rod 15 , and the bottom end of the push plate 14 contacts the inner bottom of the screening box 1 .
[0041] Through the above technical solution:
[0042] After the silicon micropowder that has passed the three-layer screening falls into the bottom of the screening box 1, the controller 2 can be used to start the electric telescopic rod 15, and the electric telescopic rod 15 can be used to drive the push plate 14 to move, so that the silicon micropowder at the bottom of the screening box 1 can be pushed out from the fourth discharge port 16 by the push plate 14 for collection, and the unloading is convenient and thorough.
[0043] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A continuous screening process device for producing silicon micropowder, characterized in that: include: A screening box (1), wherein a controller (2) is installed on the outer wall of the screening box (1), and a first screening net (5), a second screening net (6) and a third screening net (7) are arranged alternately from top to bottom inside the screening box (1), wherein the apertures and inclinations of the first screening net (5), the second screening net (6) and the third screening net (7) decrease in sequence, a feeding hopper (3) is installed at the top of the screening box (1) and above the high end of the first screening net (5), a bulk material assembly (4) is installed in the feeding hopper (3), and a fourth discharge port (16) is opened at the bottom end of the outer wall of the screening box (1); A pushing assembly, the pushing assembly is used to push the silicon micropowder at the bottom of the screening box (1) out from the fourth discharge port (16).
2. A continuous screening process device for producing silicon micropowder according to claim 1, characterized in that: The pusher assembly comprises: An electric telescopic rod (15), the electric telescopic rod (15) being installed through the outer wall of the screening box (1), and the electric telescopic rod (15) being located on a side directly facing the fourth discharge port (16); A push plate (14) is mounted on the inner end of the electric telescopic rod (15), and the bottom end of the push plate (14) contacts the inner bottom of the screening box (1).
3. A continuous screening process device for producing silicon micropowder according to claim 1, characterized in that: The bulk material assembly (4) comprises a connecting shaft (41) and a plurality of bulk material plates (42); the connecting shaft (41) is mounted in the middle of the feeding hopper (3) via a bearing; and the plurality of bulk material plates (42) are fixed in an annular array on the outer circumferential surface of the connecting shaft (41).
4. A continuous screening process device for producing silicon micropowder according to claim 3, characterized in that: The outer wall of the bulk material plate (42) is provided with a bulk material groove (43) with an open end.
5. A continuous screening process device for producing silicon micropowder according to claim 1, characterized in that: A first material discharge port (8) is provided on the outer wall of the screening box (1) and at the bottom end of the first screening net (5), and a first material guide plate (9) is connected to the outer end of the first material discharge port (8).
6. A continuous screening process device for producing silicon micropowder according to claim 5, characterized in that: A second material discharge port (10) is provided on the outer wall of the screening box (1) and at the bottom end of the second screening net (6), and a second material guide plate (11) is connected to the outer end of the second material discharge port (10).
7. A continuous screening process device for producing silicon micropowder according to claim 6, characterized in that: A third discharge port (12) is provided on the outer wall of the screening box (1) and at the bottom end of the third screening net (7), and a third material guide plate (13) is connected to the outer end of the third discharge port (12).