Silicon nitride collecting platform

Abstract

The utility model relates to the technical field of silicon nitride, and discloses a silicon nitride collecting platform which comprises a bottom plate, a fixing plate, a vibration conveying device, a mounting plate, a supporting plate, a screening assembly and an adjusting device, the fixing plate is fixedly connected to the upper end of the bottom plate, and the vibration conveying device is arranged at the upper end of the bottom plate; the mounting plate is fixedly connected to the upper end of the bottom plate through the vibration conveying device, the supporting plates are fixedly connected to the upper end of the mounting plate, the screening assembly is arranged between the supporting plates, and the adjusting device is arranged at the top of the mounting plate; and the vibration conveying device comprises a movable rod, a [-shaped plate, a spring A, a fixed rod, a movable plate, a motor A, an eccentric block, a connecting plate and a spring B. According to the silicon nitride collecting platform, by arranging the vibration conveying device, up-down vibration and left-right vibration of the screening frame can be achieved, then recycled silicon nitride particles are screened and transported, recycling and screening are conducted at the same time, and then the recycling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon nitride, in particular to a silicon nitride collecting platform. Background Art

[0002] Silicon nitride is an inorganic substance with the chemical formula Si3N4. It is an important structural ceramic material with high hardness, inherent lubricity, wear resistance, and is an atomic crystal; it is resistant to oxidation at high temperatures. It can also resist thermal shocks and will not break even if it is heated to over 1000°C in the air, cooled rapidly, and then heated rapidly. It is precisely because silicon nitride ceramics have such excellent properties that people often use it to manufacture mechanical components such as bearings, turbine blades, mechanical seal rings, and permanent molds.

[0003] In the existing polysilicon production process, when loading into the furnace, a quartz crucible is used to place the polysilicon raw material. The quartz crucible needs to be sprayed with silicon nitride. During the spraying, the silicon nitride is evenly sprayed on the crucible body with a spray gun. Since it is inevitable that particles will fall outside the target during the spraying process, the silicon nitride raw material is very expensive, and the current market price is about 1,800 yuan / kg. Therefore, polysilicon manufacturers will recycle the particles, but the existing collectors still need to screen the particles after recycling, and it is impossible to collect and screen them simultaneously. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a silicon nitride collection platform.

[0006] (II) Technical solution

[0007] To achieve the above object, the present utility model provides the following technical solutions: A silicon nitride collection platform, including a bottom plate, a fixing plate, a vibrating conveying device, a mounting plate, a support plate, a screening component, and an adjusting device. The fixing plate is fixedly connected to the upper end of the bottom plate. The vibrating conveying device is arranged at the upper end of the bottom plate. The mounting plate is fixedly connected to the upper end of the bottom plate through the vibrating conveying device. The support plate is fixedly connected to the upper end of the mounting plate. The screening component is arranged between the support plates. The adjusting device is arranged on the top of the mounting plate. The vibrating conveying device includes a movable rod, a U-shaped plate, spring A, a fixed rod, a movable plate, motor A, an eccentric block, a connecting plate, and spring B. The movable rod is slidably connected to the outer wall of the fixing plate. The U-shaped plate is fixedly connected to one end of the movable rod. Spring A is movably sleeved outside the movable rod, and both ends of spring A are fixedly connected to the fixing plate and the U-shaped plate respectively. The fixed rod is fixedly connected inside the U-shaped plate. The movable plate is slidably connected to the outside of the fixed rod. Motor A is fixedly connected between the two movable plates. The eccentric block is fixedly connected to the output end of motor A. The connecting plate is fixedly connected to the upper end of the movable plate. The mounting plate is fixedly connected to the top of the connecting plate.

[0008] Preferably, there are two spring Bs, which are movably sleeved on the upper and lower sides of the outside of the fixed rod, and both ends of spring B are fixedly connected to the U-shaped plate and the movable plate respectively.

[0009] Preferably, there are four movable rods and spring A, which are symmetrically arranged on both sides of the U-shaped plate.

[0010] Preferably, the screening component includes a screening frame. One side of the screening frame is rotatably connected between the support plates through a rotating shaft. A sieve plate is arranged inside the screening frame. A discharge hopper is fixedly connected to the upper side of the screening frame. A recovery port is opened on the front of the lower end of the screening frame. A recovery hopper is arranged in front of the recovery port.

[0011] Preferably, the adjusting device includes a motor B. Motor B is fixedly connected to the upper end of the mounting plate. The output end of motor B is fixedly connected to a rotating rod. A connecting rod A is fixedly sleeved on the outer wall of the rotating rod. The other end of connecting rod A is rotatably connected to a connecting rod B through a pin shaft. The other end of connecting rod B is hinged to a fixed block. The top of the fixed block is fixedly connected to the bottom of the screening frame.

[0012] Preferably, there are two connecting rod A, connecting rod B, and fixed blocks, which are symmetrically arranged on both sides of the rotating rod, thereby improving the support for the screening frame and ensuring the stability of the screening frame when adjusting the angle.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a silicon nitride collection platform, which has the following beneficial effects:

[0015] First, in this silicon nitride collection platform, by setting a vibration conveying device, the up-and-down vibration and left-and-right vibration of the screening box can be realized, so as to screen and transport the recovered silicon nitride particles, and thus achieve the simultaneous recovery and screening, thereby improving the recovery efficiency.

[0016] Second, in this silicon nitride collection platform, by setting an adjusting device, the inclination angle of the screening box can be adjusted, and thus the screening speed of the silicon nitride particles can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the utility model and constitute a part of the specification. They are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation to the utility model. In the drawings:

[0018] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 is of the utility model Figure 1 is an enlarged schematic diagram of part A in the utility model;

[0020] Figure 3 is of the utility model Figure 2 is an enlarged schematic diagram of part B in the utility model.

[0021] In the figure: 1, bottom plate; 2, fixing plate; 301, movable rod; 302, U-shaped plate; 303, spring A; 304, fixed rod; 305, movable plate; 306, motor A; 307, eccentric block; 308, connecting plate; 309, spring B; 4, mounting plate; 5, support plate; 601, screening box; 602, sieve plate; 603, discharge hopper; 604, recovery port; 605, recovery hopper; 701, motor B; 702, rotating rod; 703, connecting rod A; 704, connecting rod B; 705, fixed block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments.

[0023] Embodiment 1

[0024] As Figure 1-2As shown in the figure, the utility model provides a silicon nitride collection platform, which includes a bottom plate 1, a fixing plate 2, a vibration conveying device, a mounting plate 4, a support plate 5, a screening assembly, and an adjusting device. The fixing plate 2 is fixedly connected to the upper end of the bottom plate 1. The vibration conveying device is arranged at the upper end of the bottom plate 1. The mounting plate 4 is fixedly connected to the upper end of the bottom plate 1 through the vibration conveying device. The support plate 5 is fixedly connected to the upper end of the mounting plate 4. The screening assembly is arranged between the support plates 5. The adjusting device is arranged on the top of the mounting plate 4. The vibration conveying device includes a movable rod 301, a U-shaped plate 302, a spring A 303, a fixed rod 304, a movable plate 305, a motor A 306, an eccentric block 307, a connecting plate 308, and a spring B 309. The movable rod 301 is slidably connected to the outer wall of the fixing plate 2. The U-shaped plate 302 is fixedly connected to one end of the movable rod 301. The spring A 303 is movably sleeved on the outside of the movable rod 301, and both ends of the spring A 303 are fixedly connected to the fixing plate 2 and the U-shaped plate 302 respectively. The fixed rod 304 is fixedly connected to the inside of the U-shaped plate 302. The movable plate 305 is slidably connected to the outside of the fixed rod 304. The motor A 306 is fixedly connected between the two movable plates 305. The eccentric block 307 is fixedly connected to the output end of the motor A 306. The connecting plate 308 is fixedly connected to the upper end of the movable plate 305. The mounting plate 4 is fixedly connected to the top of the connecting plate 308.

[0025] There are two spring B 309s, which are movably sleeved on the upper and lower sides of the outside of the fixed rod 304, and both ends of the spring B 309 are fixedly connected to the U-shaped plate 302 and the movable plate 305 respectively.

[0026] There are four movable rods 301 and spring A 303s, which are symmetrically arranged on both sides of the U-shaped plate 302.

[0027] The screening assembly includes a screening box 601. One side of the screening box 601 is rotatably connected between the support plates 5 through a rotating shaft. A sieve plate 602 is arranged inside the screening box 601. A discharge hopper 603 is fixedly connected to the upper side of the screening box 601. A recovery port 604 is opened on the front of the lower end of the screening box 601. A recovery hopper 605 is arranged on the front of the recovery port 604.

[0028] In this embodiment, by setting the vibration conveying device, the up-and-down vibration and left-and-right vibration of the screening box 601 can be realized, so as to screen and transport the recovered silicon nitride particles, so that the recovery and screening can be carried out simultaneously, thereby improving the recovery efficiency.

[0029] Embodiment 2

[0030] As Figure 1 and Figure 3As shown in the figure, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, the adjusting device includes a motor B701, the motor B701 is fixedly connected to the upper end of the mounting plate 4, the output end of the motor B701 is fixedly connected to a rotating rod 702, an A-link 703 is fixedly sleeved on the outer wall of the rotating rod 702, the other end of the A-link 703 is rotatably connected to a B-link 704 through a pin shaft, the other end of the B-link 704 is hinged to a fixed block 705, and the top of the fixed block 705 is fixedly connected to the bottom of the screening box 601.

[0031] There are two A-links 703, B-links 704 and fixed blocks 705, and they are symmetrically arranged on both sides of the rotating rod 702, which can improve the support for the screening box 601 and ensure the stability of the screening box 601 when adjusting the angle.

[0032] In this embodiment, by setting the adjusting device, the inclination angle of the screening box 601 can be adjusted, and further the screening speed of silicon nitride particles can be adjusted.

[0033] Next, the working principle of the silicon nitride collection platform will be specifically described.

[0034] As Figure 1-3 shown, when in use, start the motor A306 to drive the eccentric block 307 to rotate. Then, under the action of the eccentric block 307, the U-shaped plate 302 will drive the movable rod 301 to move left and right, and then squeeze the spring A303 to make the U-shaped plate 302 swing left and right. At the same time, under the action of the spring B309, it will drive the movable plate 305 to vibrate up and down, and then drive the mounting plate 4 to move up and down through the connecting plate 308. While the screening box 601 vibrates up and down, it can also vibrate left and right. Then, the silicon nitride particles will be filtered through the sieve plate 602. While the screening box 601 moves, it will drive the particles to move to the side, so as to be discharged from the lower discharge hopper 603 and the recovery hopper 605. When the angle of the screening box 601 needs to be adjusted, start the motor B701 to drive the rotating rod 702 to rotate, then drive the A-link 703 to rotate, and then jack up one side of the screening box 601 through the B-link 704 and the fixed block 705, so that the angle of the screening box 601 changes.

Claims

1. A silicon nitride collecting platform, comprising a bottom plate (1), a fixing plate (2), a vibrating conveying device, a mounting plate (4), a supporting plate (5), a screening assembly, and an adjusting device, characterized in that: The fixed plate (2) is fixedly connected to the upper end of the bottom plate (1). The vibration conveying device is arranged at the upper end of the bottom plate (1). The mounting plate (4) is fixedly connected to the upper end of the bottom plate (1) through the vibration conveying device. The support plate (5) is fixedly connected to the upper end of the mounting plate (4). The screening assembly is arranged between the support plates (5). The adjusting device is arranged at the top of the mounting plate (4). The vibration conveying device includes a movable rod (301), a U-shaped plate (302), a spring A (303), a fixed rod (304), a movable plate (305), a motor A (306), an eccentric block (307), a connecting plate (308), and a spring B (309). The movable rod (301) is slidably connected to the outer wall of the fixed plate (2). The U-shaped plate (302) is fixedly connected to one end of the movable rod (301). The spring A (303) is movably sleeved outside the movable rod (301), and both ends of the spring A (303) are fixedly connected to the fixed plate (2) and the U-shaped plate (302) respectively. The fixed rod (304) is fixedly connected inside the U-shaped plate (302). The movable plate (305) is slidably connected to the outside of the fixed rod (304). The motor A (306) is fixedly connected between the two movable plates (305). The eccentric block (307) is fixedly connected to the output end of the motor A (306). The connecting plate (308) is fixedly connected to the upper end of the movable plate (305). The mounting plate (4) is fixedly connected to the top of the connecting plate (308).

2. A silicon nitride collection platform according to claim 1, characterized in that: There are two spring Bs (309) which are movably sleeved on the upper and lower sides outside the fixed rod (304), and both ends of the spring B (309) are fixedly connected to the U-shaped plate (302) and the movable plate (305) respectively.

3. A silicon nitride collection platform according to claim 1, characterized in that: There are four movable rods (301) and spring As (303) which are symmetrically arranged on both sides of the U-shaped plate (302).

4. A silicon nitride collection platform according to claim 1, characterized in that: The screening assembly includes a screening box (601). One side of the screening box (601) is rotatably connected between the support plates (5) through a rotating shaft. A sieve plate (602) is arranged inside the screening box (601). A discharge hopper (603) is fixedly connected to the upper side of the screening box (601). A recovery port (604) is opened on the front of the lower end of the screening box (601). A recovery hopper (605) is arranged on the front of the recovery port (604).

5. The silicon nitride collection platform according to claim 1, characterized in that: The adjusting device includes a motor B (701). The motor B (701) is fixedly connected to the upper end of the mounting plate (4). The output end of the motor B (701) is fixedly connected to a rotating rod (702). A connecting rod A (703) is fixedly sleeved on the outer wall of the rotating rod (702). The other end of the connecting rod A (703) is rotatably connected to a connecting rod B (704) through a pin shaft. The other end of the connecting rod B (704) is hinged to a fixed block (705). The top of the fixed block (705) is fixedly connected to the bottom of the screening box (601).

6. A silicon nitride collection platform according to claim 5, characterized in that: The connecting rod A (703), the connecting rod B (704) and the fixing block (705) are each provided with two and are symmetrically arranged on both sides of the rotating rod (702).

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