Silicon particle screening device

Abstract

The utility model relates to the technical field of separation equipment, in particular to a silicon particle screening device which comprises a support, a shell and a vibration motor, a cavity is formed in the shell, a cross beam shaped like a Chinese character'tian 'is erected in the cavity, a screen is fixedly arranged on the top of the cross beam, and the cross beam comprises a cross beam fixed to the midpoint of the cavity of the shell in a crossed mode. A plurality of pressing pieces are fixedly arranged at the positions, corresponding to the cross-shaped beam, of the screen at intervals, the pressing pieces are detachably and fixedly connected with the cross-shaped beam, and the screen is clamped between the cross-shaped beam and the pressing pieces. According to the scheme, the technical problem that the middle of the screen is prone to deformation in the reciprocating vibration process of the vibrating screen device can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to separating equipment technical field, concretely is the silicon particle screening device. BACKGROUND

[0002] In the production process of silica gel particles, particle screening devices are needed to screen particles of different diameters. Screening devices usually use vibration screens, rotary screens or air flow screens. The vibration screen drives the screen to vibrate by a motor, so that the particles move on the screen surface to achieve screening. The rotary screen separates particles of different diameters by rotating the screen cylinder and using centrifugal force. For the sake of description, the particles are divided into large-diameter particles with a diameter larger than the screen hole in the screen and small-diameter particles with a diameter smaller than the screen hole in the screen. The air flow screen uses air flow to blow up the particles and separate them through screens of different hole diameters.

[0003] The prior art discloses a kind of silicon material particle clean screening machine (announcement number: CN215235714U), and the body top four sides periphery of screening machine is fixedly arranged with crossbeam, and the screen used for screening is bolted on the crossbeam. However, the existing technology has the problem that the working principle of the vibration screen is to drive the screening machine body to reciprocate by the inertial force generated by the motor, and only the four edge positions of the screen are fixed on the crossbeam, so that the middle part of the screen is easily deformed in reciprocating vibration, which affects the screening efficiency of silicon particles when used again. UTILITY MODEL CONTENT

[0004] The utility model provides silicon particle screening device, can solve the technical problem that the middle part of screen is easily deformed in reciprocating vibration of vibration screen device.

[0005] The present application provides the following technical solutions:

[0006] The silicon particle screening device includes a support, a housing, and a vibration motor. The housing has a cavity inside. A cross-shaped crossbeam is arranged in the cavity. A screen is fixed on the top of the crossbeam. The crossbeam includes a cross beam fixed at the midpoint of the cavity of the housing. A plurality of pressing plates are fixed on the screen corresponding to the position of the cross beam. The pressing plates are detachably connected with the cross beam. The screen is clamped between the cross beam and the pressing plates.

[0007] Advantages:

[0008] 1. The screen mesh is effectively fixed in the middle to prevent arching and deformation: The solution uses several pressure plates fixed at intervals at the positions corresponding to the cross beams on the screen mesh, clamping the screen mesh between the cross beams and the pressure plates, thus effectively fixing the middle of the screen mesh. Even during long-term reciprocating vibration screening, the middle of the screen mesh is not prone to arching and deformation. This design significantly improves the overall stability and durability of the screen mesh, ensuring the continuity and efficiency of the screening process. At the same time, it reduces the risk of screen mesh damage caused by repeated stress concentration, thereby extending the service life of the screen mesh and reducing maintenance costs.

[0009] 2. The crossbeam design improves screening efficiency and accuracy: The grid-shaped crossbeam design not only provides additional support points but also distributes the inertial force generated by the vibrating motor more evenly. Compared to traditional screens with only four fixed sides, this design can more effectively transmit vibration energy, allowing the material on the screen to be vibrated more evenly, thereby improving screening efficiency and accuracy. Simultaneously, because the center of the screen is fixed and the overall structure is more stable, material is less likely to accumulate in the center of the screen during vibration, avoiding uneven screening caused by localized material accumulation. This helps improve screening quality, ensuring that small-diameter particles can pass through the screen smoothly while large-diameter particles are effectively retained.

[0010] Furthermore, as an improvement, the shell has two ends in the length direction as discharge ends for large-diameter particles, and a frame is fixedly installed on the shell at the position corresponding to the discharge ends of the large-diameter particles; it also includes a grid for blocking the large-diameter particles from flowing out from the discharge ends, one end of the grid abutting against the screen and the other end of the grid abutting against the frame.

[0011] Beneficial effects: With one end of the grating resting against the screen and the other end against the support frame, it effectively prevents large-diameter particles from prematurely flowing out from the discharge end. This design ensures that large particles are only collected after screening is complete, preventing them from being shaken off too early during vibration and guaranteeing the accuracy of the screening results. After screening, simply remove the grating to easily collect the large particles. Furthermore, the grating also provides some protection, preventing operators from accidentally coming into contact with the high-speed vibrating screen during operation, thus improving operational safety.

[0012] Furthermore, as an improvement, feeding racks are installed at both ends of the support along the width of the housing. The feeding racks include a primary feeding rack detachably and fixedly connected to the support and a secondary feeding rack detachably and fixedly connected to the primary feeding rack. The secondary feeding rack is located above the primary feeding rack, and feeding ports of different diameters are respectively opened on the primary feeding rack and the secondary feeding rack.

[0013] Beneficial effects: This grading design enables the device to select the appropriate feeding frame (primary or secondary) according to the actual amount of material to be fed, thus flexibly responding to different production needs. This design helps achieve more uniform material distribution, avoiding problems such as material accumulation or uneven distribution caused by excessive one-time feeding. Uniformly distributed material can better pass through the screen for separation, significantly improving screening efficiency and accuracy. For example, when handling small amounts of material, the secondary feeding frame can be used, while when handling large amounts of material, the primary feeding frame can be activated, improving the adaptability and flexibility of the device.

[0014] Further, as an improvement, a dust collector and a dust collection box connected to the dust collector pipeline are also included, and the dust suction opening on the dust collector is directed towards the positions where the primary and secondary feeding frames are arranged.

[0015] Beneficial effects: When feeding from the primary or secondary feeding frame, dust may be scattered. At this time, the dust is absorbed by the dust collector, which helps purify the working environment and also prevents a large amount of dust from falling with small-diameter particles below the screen, thereby affecting the purity of small-diameter particles.

[0016] Further, as an improvement, rubber sleeves are provided at both ends of the grid.

[0017] Beneficial effects: Rubber sleeves are provided at both ends of the grid, which can effectively prevent hard contact between the grid and the screen and the supporting frame, avoiding direct friction between metals. This not only reduces the wear and tear of the grid itself, as well as the screen and the supporting frame, prolonging the service life of these components, but also prevents metal debris generated by friction from contaminating the screened material, ensuring the purity of silicon particles. At the same time, the friction between the rubber sleeves and the screen or the supporting frame is increased, making it difficult for the grid to slip.

[0018] Further, as an improvement, a step is provided at the position where the grid abuts against the supporting frame.

[0019] Beneficial effects: The step provided at the position where the grid abuts against the supporting frame allows the grid to be placed more stably on the supporting frame. The step design provides a precise positioning point for the grid, ensuring that the grid does not shift or loosen during operation. This improvement is particularly suitable for high-frequency vibration environments during vibration screening, ensuring that the grid is always in the correct position and avoiding problems such as premature flow of large-particle material or uneven screening caused by grid movement. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a front view of the silicon particle screening device according to Embodiment One of the present application;

[0021] Figure 2 is a front view of the silicon particle screening device according to Embodiment One of the present application; Figure 1 is an enlarged schematic view of position A;

[0022] Figure 3 for Figure 1 Top view;

[0023] Figure 4 for Figure 3 An enlarged view of position B in the middle;

[0024] Figure 5 for Figure 3 An enlarged diagram of position C in the middle. Detailed Implementation

[0025] The following detailed description illustrates the specific implementation method:

[0026] The markings in the accompanying drawings include: bracket 100, connecting beam 101, housing 200, cavity 201, cross beam 202, U-beam 203, pressing plate 204, discharge port 205, frame 206, grid 207, step 208, primary feeding rack 209, secondary feeding rack 210, screen 2112, vibrating motor 300, and vacuum cleaner 400.

[0027] Example 1

[0028] Combination Figures 1-5 As shown, the silicon particle screening device includes a support 100, a housing 200, and a vibration motor 300.

[0029] The bracket 100 serves as the supporting component of the entire device. In this embodiment, a four-corner bracket 100 is selected and bolted to the bottom of the housing 200. A vibration motor 300 is installed between the bracket 100 and the housing 200. The vibration motor 300 is a commonly used driving component in vibrating screen devices. The inertial force generated by the vibration motor 300 drives the housing 200 to reciprocate. The specific structure of the vibration motor 300 will not be described in detail here. A connecting beam 101 is also welded and fixed between two adjacent brackets 100 to improve the overall stability of the bracket 100 structure.

[0030] The housing 200, as the main component of this device, has an opening at the top that creates an internal cavity 201. A grid-shaped crossbeam is installed within the cavity 201. The inner wall of the housing 200 and the grid-shaped crossbeam are fixedly connected by welding. A screen 211 is fixedly installed on the top of the crossbeam. Specifically, the crossbeam includes a cross beam 202 that is cross-fixed at the midpoint of the cavity 201 of the housing 200, and a U-shaped beam 203 that is welded to the inner wall of the housing 200. Several pressure plates 204 are fixedly installed on the screen 211 at intervals corresponding to the positions of the cross beam 202. The pressure plates 204 are detachably fixed to the cross beam 202 by bolts, and the screen 211 is sandwiched between the cross beam 202 and the pressure plates 204, so that the middle part of the screen 211 is fixed by the pressure plates 204, preventing the middle part of the screen 211 from easily arching or deforming even during long-term reciprocating vibration screening.

[0031] The housing 200 has discharge ports 205 at both ends along its length, serving as discharge ends for large-diameter particles. A support frame 206 is fixedly installed on the housing 200 at the corresponding discharge ends, with the length of the support frame 206 slightly longer than the width of the housing 200. It also includes a grid 207 to prevent large-diameter particles from flowing out of the discharge ends. One end of the grid 207 abuts against the screen 211, specifically against the screen holes, while the other end abuts against the support frame 206. Specifically, a step 208 is formed at the top of the support frame 206, and the grid 207 abuts against this step 208. In other embodiments, rubber sleeves can be fitted onto both ends of the grid 207. The rubber sleeves increase the friction between the ends of the grid 207 and the screen 211 and the support frame 206, preventing the grid 207 from easily slipping off the support frame 206.

[0032] Feeding racks are installed on the support 100 at both ends of the housing 200 in the width direction. The feeding racks include a primary feeding rack 209 that is detachably and fixedly connected to the support 100 by bolts, and a secondary feeding rack 210 that is detachably and fixedly connected to the primary feeding rack 209. The secondary feeding rack 210 is located above the primary feeding rack 209. Feeding ports of different diameters are opened on the primary feeding rack 209 and the secondary feeding rack 210 respectively. Different feeding ports are selected according to the amount of material to be fed.

[0033] It also includes a vacuum cleaner 400 and a dust collection box connected to the vacuum cleaner 400 pipe. The vacuum cleaner 400 has a suction opening facing the location where the primary feeding rack 209 and the secondary feeding rack 210 are set. When feeding materials from the primary feeding rack 209 or the secondary feeding rack 210, dust will fall. At this time, the vacuum cleaner 400 absorbs the dust, which helps to purify the working environment.

[0034] The specific application process is as follows:

[0035] Before use, the grid 207 needs to be placed against the frame 206 and the screen 211 to block the discharge end of large-diameter particles, preventing large-diameter particles from being shaken off from the discharge port 205 at the discharge end during the vibrating screening process. During actual use, select either the primary feeding rack 209 or the secondary feeding rack 210 according to the amount of material to be fed. Dust will be scattered during feeding; therefore, it is important to start the vacuum cleaner 400 before feeding to absorb the dust, which helps to purify the working environment and prevents dust from falling under the screen 211 along with small-diameter particles.

[0036] After the vibrating motor 300 is turned on, the inertial force generated drives the housing 200 and the screen 211 to reciprocate. Small-diameter particles falling on the screen 211 will be screened into the cavity 201 below the screen 211 during the reciprocating vibration, while large-diameter particles remain on the screen 211 to complete the screening process. Finally, the grid 207 is removed and the large-diameter particles are collected and discharged from the discharge end.

[0037] The above are merely embodiments of this utility model, and the utility model is not limited to the field covered by this embodiment. Commonly known structures and characteristics in the solutions are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A silicon particle screening device, characterized in that: The device includes a support frame, a housing, and a vibration motor. The housing has an internal cavity, and a crossbeam in the shape of a grid is installed inside the cavity. A screen is fixedly installed on the top of the crossbeam. The crossbeam includes a cross beam that is fixedly intersected at the midpoint of the housing cavity. Several pressure plates are fixedly installed on the screen at intervals corresponding to the cross beam. The pressure plates are detachably fixedly connected to the cross beam, and the screen is sandwiched between the cross beam and the pressure plates.

2. The silicon particle screening device according to claim 1, characterized in that: The shell has two ends along its length that are outlets for large-diameter particles. A frame is fixedly installed on the shell at the outlet positions corresponding to the outlets for large-diameter particles. The shell also includes a grid for preventing large-diameter particles from flowing out of the outlets. One end of the grid abuts against a screen, and the other end of the grid abuts against the frame.

3. The silicon particle screening device according to claim 2, characterized in that: Feeding racks are installed at both ends of the support in the width direction of the housing. The feeding racks include a primary feeding rack that is detachably and fixedly connected to the support and a secondary feeding rack that is detachably and fixedly connected to the primary feeding rack. The secondary feeding rack is located above the primary feeding rack. Feeding ports of different diameters are opened on the primary feeding rack and the secondary feeding rack, respectively.

4. The silicon particle screening device according to claim 3, characterized in that: It also includes a vacuum cleaner and a dust collection box connected to the vacuum cleaner's pipes, wherein the vacuum cleaner's suction opening faces the location where the primary feeding rack and the secondary feeding rack are set.

5. The silicon particle screening device according to claim 4, characterized in that: Rubber sleeves are fitted at both ends of the grille.

6. The silicon particle screening device according to claim 5, characterized in that: Steps are provided on the scaffold where they abut against the grille.

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