Sieving machine for processing silicon nitride
By designing a screening machine for silicon nitride processing, and utilizing a combination of a drive motor and a vibration generator, the problem of silicon nitride accumulation in traditional devices was solved, achieving efficient screening and rapid discharge, thus improving screening efficiency and quality.
Patent Information
- Application Number
- CN202422843607.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-21
AI Technical Summary
Traditional silicon nitride screening devices are inefficient, and silicon nitride tends to accumulate on the screen, affecting screening efficiency.
A sieving machine for silicon nitride processing was designed, comprising a sieving tank, a drive motor, a rotating shaft, a dispersing baffle, a dispersing rod, a sieving mesh assembly, and a vibration generator. The drive motor drives the rotating shaft and the dispersing baffle to stir the mixture, and the vibration generator improves the sieving efficiency.
It improves the screening efficiency and quality of silicon nitride, ensures uniform dispersion of silicon nitride, prevents accumulation, and achieves rapid screening and efficient discharge.
Smart Images
Figure CN223475540U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screening device technology, and in particular to a screening machine for silicon nitride processing. Background Technology
[0002] Silicon nitride is an important structural ceramic material, characterized by its high hardness, inherent lubricity, and wear resistance. As an atomic crystal, it resists oxidation at high temperatures and withstands thermal shock; it can withstand heating to over 1000°C in air, followed by rapid cooling and then rapid heating without shattering. Due to these excellent properties, silicon nitride ceramics are frequently used to manufacture mechanical components such as bearings, turbine blades, mechanical seal rings, and permanent molds. Since silicon nitride particles vary in size after processing, large-volume silicon nitride needs to be sieved and crushed for further processing into finished products. Qualified powdered silicon nitride is easier to process into finished products. However, traditional silicon nitride sieving devices are inefficient, with silicon nitride accumulating on the screen, affecting sieving efficiency. Therefore, a sieving device that solves these problems is needed. Utility Model Content
[0003] To address the problem of low efficiency and silicon nitride accumulation on the screen in traditional silicon nitride screening devices, which affects screening efficiency, a screening machine for silicon nitride processing has been invented.
[0004] The technical solution of this utility model is a sieving machine for silicon nitride processing, including a sieving tank and a tank cover. The tank cover has a feed opening, and a drive motor is connected to the tank cover via a support base. The output shaft of the drive motor extends into the sieving tank and is connected to a rotating shaft. The rotating shaft is connected to a dispersing baffle, and several dispersing rods are connected to the edge of the dispersing baffle. A support protrusion is connected to the inner side wall of the sieving tank, and a connecting ring is connected to the support protrusion. A sieving mesh assembly is connected to the connecting ring, and a separation cylinder is connected to the lower end of the sieving mesh assembly. A discharge pipe is connected to the bottom of the separation cylinder, and a discharge opening is provided at the bottom of the sieving tank. A vibration generator is connected to the outer side wall of the sieving tank.
[0005] Preferably, the dispersing baffle is in the shape of a conical hat and extends above the screening mesh group.
[0006] Preferably, the screening mesh group includes a first screening mesh and a second screening mesh, the first screening mesh and the second screening mesh are funnel-shaped, one end of the first screening mesh is connected to a connecting ring, the other end is connected to one end of the second screening mesh, and the end of the second screening mesh away from the first screening mesh is connected to a separation cylinder.
[0007] Preferably, the tilt angle of the first screening screen is greater than the tilt angle of the second screening screen.
[0008] Preferably, the bottom of the screening tank and the separation cylinder is funnel-shaped, and the bottom of the screening tank is connected to several support legs.
[0009] The technical solution of this utility model can achieve the following beneficial effects: (1) By using the dispersing baffle, dispersing rod, rotating shaft and drive motor, it is convenient to stir the silicon nitride piled on the screening mesh group, thereby improving the screening efficiency of silicon nitride; (2) By using the screening mesh group and vibration generator, it is convenient to fully and quickly screen the silicon nitride, thereby improving the screening quality; (3) By using the discharge opening, separation cylinder and discharge pipe, it is convenient to discharge the screened silicon nitride separately; The technical solution of this utility model has a wide application prospect in the field of screening device technology. Attached Figure Description
[0010] Figure 1 This is a cross-sectional view of the sieve machine for silicon nitride processing according to this utility model.
[0011] Figure 2 for Figure 1 Enlarged view of a portion of region A in the middle.
[0012] Among them, 1. screening tank, 2. tank cover, 3. support leg, 4. feed opening, 5. support base, 6. drive motor, 7. rotating shaft, 8. dispersing baffle, 9. dispersing rod, 10. support protrusion, 11. connecting ring, 12. first screening screen, 13. second screening screen, 14. separation cylinder, 15. discharge pipe, 16. vibration generator, 17. discharge opening. Detailed Implementation
[0013] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0014] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0015] This application discloses a sieving machine for silicon nitride processing. (Refer to...) Figure 1 The sieve consists of a screening tank 1 and a tank cover 2. The tank cover 2 is detachably and fixedly connected to the upper opening of the screening tank 1 with bolts, thus sealing the opening of the screening tank 1 and preventing external debris from entering the screening tank 1 through the upper opening, which could affect the quality of the silicon nitride product. It also facilitates the maintenance of the components inside the screening tank 1. The tank cover 2 has a feed opening 4, which facilitates the feeding of the silicon nitride to be screened into the screening tank 1. The bottom of the screening tank 1 has a discharge opening 17, which is funnel-shaped. The discharge opening 17 is located at the bottom of the funnel-shaped screening tank 1, facilitating the full discharge of the screened silicon nitride from the discharge opening 17. The bottom of the screening tank 1 is detachably and fixedly connected to several support legs 3 with bolts, which allow the screening tank 1 to stand stably on the ground.
[0016] Reference Figure 1 A drive motor 6 is connected to the can lid 2 via a support base 5, thus connecting the drive motor 6 to the can lid 2. The output shaft of the drive motor 6 extends into the screening tank 1 and is detachably and fixedly connected to a rotating shaft 7 via a coupling, so that when the drive motor 6 is energized, its output shaft drives the rotating shaft 7 to rotate. A dispersing baffle 8 is detachably and fixedly connected to the rotating shaft 7 via bolts, so that the dispersing baffle 8 can rotate simultaneously with the rotating shaft 7. The dispersing baffle 8 is shaped like a hat, which allows the silicon nitride falling onto the dispersing baffle 8 to be evenly dispersed and slide down. Several dispersing rods 9 are welded to or detachably and fixedly connected to the edge of the dispersing baffle 8 via bolts, so that the dispersing rods 9 can agitate the silicon nitride accumulated between the dispersing baffle 8 and the screening mesh group, so that the silicon nitride can slide continuously along the screening mesh group and be screened at the same time, thereby improving the screening efficiency.
[0017] Reference Figure 1 , Figure 2A support protrusion 10 is welded to or detachably fixed to the inner wall of the screening tank 1 via bolts, connecting the support protrusion 10 to the inner wall of the screening tank 1. A connecting ring 11 is detachably fixed to the support protrusion 10 via bolts, connecting the connecting ring 11 to the support protrusion 10. A screening mesh assembly is detachably fixed to the connecting ring 11 via bolts, connecting the screening mesh assembly to the support protrusion 10 via the connecting ring 11, and thus to the inner wall of the screening tank 1. The screening mesh assembly includes a first screening mesh 12 and a second screening mesh 13, which are funnel-shaped, facilitating the screening of silicon nitride falling onto them through the funnel-shaped first screening mesh 12 and second screening mesh 13, while allowing large volumes of silicon nitride to roll down along the inclined first screening mesh 12 and second screening mesh 13. One end of the first screening mesh 12 is detachably and fixedly connected to the connecting ring 11 by bolts, and the other end is detachably and fixedly connected to one end of the second screening mesh 13 by bolts, so that the first screening mesh 12, the second screening mesh 13 and the connecting ring 11 are connected together to form a whole. The tilt angle of the first screening mesh 12 is greater than that of the second screening mesh 13, which facilitates the full and rapid screening of silicon nitride through the first screening mesh 12 and the second screening mesh 13 with different tilt angles.
[0018] Reference Figure 1 The lower end of the screening mesh assembly is connected to a separation cylinder 14. Specifically, the end of the second screening mesh 13 furthest from the first screening mesh 12 is detachably fixed to the separation cylinder 14 with bolts, thus connecting the second screening mesh 13 and the separation cylinder 14 together. This allows the large volume of silicon nitride produced after screening by the first and second screening meshes 12 to be transported into the separation cylinder 14. The bottom of the separation cylinder 14 is funnel-shaped, and a discharge pipe 15 is connected to the bottom of the separation cylinder 14. One end of the discharge pipe 15 is connected to the bottom of the separation cylinder 14, facilitating the full discharge of the large volume of silicon nitride within the separation cylinder 14. The discharge pipe 15 is inclined and extends through the side wall of the screening tank 1 to the outside, further facilitating the more complete discharge of the large volume of silicon nitride within the separation cylinder 14.
[0019] Reference Figure 1 A vibration generator 16 is detachably and fixedly connected to the outer wall of the screening tank 1 by bolts. The vibration generator 16 is located close to the outer wall of the screening tank 1 corresponding to the connecting ring 11, so that the vibration generator 16 can generate a vibration source by being powered on, thereby facilitating the screening of silicon nitride by the first screening screen 12 and the second screening screen 13.
[0020] In use, silicon nitride to be screened is fed into screening tank 1 through feed opening 4. Then, drive motor 6 and vibration generator 16 are powered on. The output shaft of drive motor 6 drives rotating shaft 7 to rotate. Rotating shaft 7 drives dispersing baffle 8 and dispersing rod 9 to rotate, stirring up the silicon nitride accumulated between first screening screen 12 and dispersing baffle 8, preventing silicon nitride from continuously accumulating at first screening screen 12 and dispersing baffle 8. At the same time, vibration generator 16 generates vibration source, further improving the screening efficiency of silicon nitride by first screening screen 12 and second screening screen 13. Finally, the screened silicon nitride is discharged from screening tank 1 through discharge opening 17 and discharge pipe 15 respectively.
[0021] Unless otherwise specified, the equipment components involved in the above embodiments are all conventional equipment components, and the structural settings, working methods or control methods involved are all conventional settings, working methods or control methods in the art unless otherwise specified.
[0022] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A sieving machine for silicon nitride processing, comprising a sieving tank (1) and a tank cover (2), characterized in that, The can lid (2) is connected to a feed opening (4). The can lid (2) is connected to a drive motor (6) via a support base (5). The output shaft of the drive motor (6) extends into the screening tank (1) and is connected to a rotating shaft (7). The rotating shaft (7) is connected to a dispersing baffle (8). Several dispersing rods (9) are connected to the edge of the dispersing baffle (8). A support protrusion (10) is connected to the inner side wall of the screening tank (1). A connecting ring (11) is connected to the support protrusion (10). A screening mesh group is connected to the connecting ring (11). A separation cylinder (14) is connected to the lower end of the screening mesh group. A discharge pipe (15) is connected to the bottom of the separation cylinder (14). A discharge opening (17) is opened at the bottom of the screening tank (1). A vibration generator (16) is connected to the outer side wall of the screening tank (1).
2. The sieving machine for silicon nitride processing according to claim 1, characterized in that, The dispersing baffle (8) is in the shape of a hat and extends above the screening mesh group.
3. The sieving machine for silicon nitride processing according to claim 1, characterized in that, The screening mesh group includes a first screening mesh (12) and a second screening mesh (13). The first screening mesh (12) and the second screening mesh (13) are funnel-shaped. One end of the first screening mesh (12) is connected to a connecting ring (11), and the other end is connected to one end of the second screening mesh (13). The end of the second screening mesh (13) away from the first screening mesh (12) is connected to a separation cylinder (14).
4. The sieving machine for silicon nitride processing according to claim 3, characterized in that, The tilt angle of the first screening screen (12) is greater than the tilt angle of the second screening screen (13).
5. The sieving machine for silicon nitride processing according to claim 1, characterized in that, The bottom of the screening tank (1) and the separation cylinder (14) are funnel-shaped, and the bottom of the screening tank (1) is connected to several support legs (3).