A screening device for fused quartz production

Abstract

This utility model relates to the field of fused silica production technology, specifically disclosing a screening device for fused silica production, including a screening box. The screening box has a multi-stage screening mechanism inside, and a dust removal mechanism is provided on the upper surface of the screening box. A fan can extract the dust generated during the screening process, and then the dust is transported to a bag filter for dust removal through a conveying pipe to prevent dust from affecting the surrounding environment. Pulling a moving rod moves multiple inclined grooves. The inclined grooves, together with trapezoidal sliders and trapezoidal sliding grooves, move multiple abutment rods upward in the through holes, thereby releasing the abutment rods from the screen. Then, the screen is pulled out from between the mounting frame and the L-shaped plate, and removed from the screening box through a notch, thus disassembling the screen. During installation, the above steps are reversed, which facilitates quick and easy screen replacement, shortens replacement time, and avoids affecting the screening efficiency of fused silica raw materials.

Description

Technical Field

[0001] This utility model relates to the field of fused silica production technology, and specifically discloses a screening device for fused silica production. Background Technology

[0002] Fused silica refers to an amorphous (glassy) silica material formed by melting natural quartz crystals at high temperatures and then cooling them. Its structure differs from ordinary quartz sand, possessing unique physicochemical properties. It is widely used in high-tech fields. During the production of fused silica, screening equipment is required to separate the fused silica into particles of the required size.

[0003] The screens in existing fused silica production screening equipment are bolted to the screening box. When the screen is damaged, it needs to be replaced. During replacement, the screening box needs to be opened, and multiple bolts need to be removed one by one to remove the screen. During installation, the above steps need to be reversed, which makes screen replacement inconvenient and time-consuming, seriously affecting the screening efficiency of fused silica raw materials. At the same time, fused silica raw materials contain some dust, which will be generated during screening and will drift out through the feed inlet or discharge outlet, affecting the surrounding environment. Utility Model Content

[0004] This utility model proposes a screening device for fused silica production, which facilitates screen replacement, shortens replacement time, avoids affecting the screening efficiency of fused silica raw materials, and treats the dust generated during the screening of fused silica raw materials to prevent dust from affecting the surrounding environment.

[0005] This utility model is implemented as follows: a screening device for fused silica production includes a screening box, the screening box is provided with a multi-stage screening mechanism inside, and a dust removal mechanism is provided on the upper surface of the screening box.

[0006] The multi-stage screening mechanism includes an installation frame disposed inside the screening box. The upper end face and the front and rear ends of the multiple installation frames are fixedly connected with symmetrically distributed L-shaped plates. The multiple L-shaped plates are arranged in pairs. A screen is disposed between the upper end face of the multiple installation frames and the multiple sets of L-shaped plates. A fixing mechanism matching the screen is disposed inside the multiple L-shaped plates.

[0007] The fixing mechanism includes a storage groove formed on the left side wall of the L-shaped plate. A movable rod is slidably connected inside the storage groove. The lower end face of the movable rod has multiple evenly distributed inclined grooves. The lower end face of the L-shaped plate has multiple evenly distributed through holes that communicate with the storage groove. Abutment rod is slidably connected inside each of the multiple through holes. The upper ends of the multiple abutment rods extend into the interior of the multiple inclined grooves and are slidably connected to the inclined grooves. The lower ends of the multiple abutment rods extend to the exterior of the multiple through holes and abut against the screen.

[0008] As a preferred embodiment of the screening equipment for fused silica production according to this utility model, the dust removal mechanism includes a fan installed on the upper surface of the screening box, the outlet of the fan is connected to a conveying pipe, and the other end of the conveying pipe is connected to a bag filter dust collector.

[0009] As a preferred embodiment of the screening equipment for fused silica production according to this utility model, the front and rear inner walls of the screening box are fixedly connected to multiple sets of support plates located below multiple mounting frames, and vibration supports are installed between the multiple sets of support plates and the multiple mounting frames.

[0010] As a preferred embodiment of the screening equipment for fused silica production according to this utility model, a vibration motor is installed on the lower end face of each of the multiple mounting frames.

[0011] As a preferred embodiment of the screening equipment for fused silica production according to this utility model, the left side wall of the screening box has a through notch, and a door matching the notch is installed on the left side wall of the screening box.

[0012] As a preferred embodiment of the screening equipment for fused silica production according to this utility model, the upper left end of the L-shaped plate is threaded with a fixing bolt that abuts against the moving rod.

[0013] In a preferred embodiment of the screening equipment for fused silica production according to this utility model, the abutting rod and the inclined groove are slidably connected by a trapezoidal slider and a trapezoidal chute.

[0014] The beneficial effects of this utility model are:

[0015] The dust generated during the screening process can be extracted by the fan. Since the other end of the conveying pipe is connected to the bag filter, the dust can be transported to the bag filter for dust removal to prevent the dust from affecting the surrounding environment.

[0016] Pulling the moving rod causes multiple inclined grooves to move. These grooves, in conjunction with the trapezoidal slider and trapezoidal slide, move multiple abutment rods upward within the through hole, thereby releasing the abutment rods from contact with the screen. Then, pull the screen to remove it from between the mounting frame and the L-shaped plate, and remove it from the screening box through the notch. This allows for screen disassembly. For installation, simply reverse the above steps. This facilitates quick and easy screen replacement, reduces replacement time, and avoids affecting the screening efficiency of the fused silica raw material. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a front cross-sectional view of the present invention.

[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram of part a.

[0021] Figure 4 This is a schematic diagram of the left-side cross-sectional structure of this utility model.

[0022] Figure 5 This is a three-dimensional structural diagram of the mounting frame of this utility model.

[0023] The markings in the diagram are: 1. Screening box; 2. Mounting frame; 3. L-shaped plate; 4. Screen; 5. Fan; 6. Conveying pipe; 7. Collection trough; 8. Moving rod; 9. Inclined groove; 10. Through hole; 11. Abutment rod; 12. Support plate; 13. Vibration support; 14. Vibration motor; 15. Notch; 16. Box door; 17. Fixing bolt. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0025] Please see Figures 1-5 A screening device for fused silica production includes a screening box 1, which has a multi-stage screening mechanism inside and a dust removal mechanism on the upper surface of the screening box 1.

[0026] The multi-stage screening mechanism includes an installation frame 2 set inside the screening box 1. The upper end of the multiple installation frames 2 is fixedly connected to both the front and rear ends of the frame 2, and the multiple L-shaped plates 3 are arranged in pairs. A screen 4 is set between the upper end of the multiple installation frames 2 and the multiple sets of L-shaped plates 3. A fixing mechanism matching the screen 4 is set inside the multiple L-shaped plates 3.

[0027] The fixing mechanism includes a storage groove 7 opened on the left side wall of the L-shaped plate 3. A moving rod 8 is slidably connected inside the storage groove 7. The lower end face of the moving rod 8 is provided with multiple evenly distributed inclined grooves 9. The lower end face of the L-shaped plate 3 is provided with multiple evenly distributed through holes 10 that communicate with the storage groove 7. Abutment rods 11 are slidably connected inside the multiple through holes 10. The upper ends of the multiple abutment rods 11 extend into the interior of the multiple inclined grooves 9 and are slidably connected to the inclined grooves 9. The lower ends of the multiple abutment rods 11 extend to the exterior of the multiple through holes 10 and abut against the screen 4.

[0028] In this embodiment: when fused silica is screened, the dust removal mechanism can remove the dust generated during the screening process to prevent the dust from affecting the surrounding environment;

[0029] When replacing the screen 4, open the box door 16 and replace the screen 4 through the notch 15. Specifically, first loosen the fixing bolts 17 to fix the moving rod 8, then pull the moving rod 8. The moving rod 8 drives multiple inclined grooves 9 to move. The inclined grooves 9, together with the trapezoidal slider and trapezoidal slide, drive multiple abutment rods 11 to move upward in the through hole 10, thereby releasing the abutment state between the multiple abutment rods 11 and the screen 4. Then pull the screen 4 to pull it out from between the mounting frame 2 and the L-shaped plate 3, and take it out from the screening box 1 through the notch 15, thus disassembling the screen 4. When installing, simply reverse the above steps, which makes it convenient and quick to replace the screen 4, shortens the replacement time, and avoids affecting the screening efficiency of the fused silica raw material.

[0030] As a technical optimization of this utility model, the dust removal mechanism includes a fan 5 installed on the upper surface of the screening box 1, the air outlet of the fan 5 is connected to a conveying pipe 6, and the other end of the conveying pipe 6 is connected to a bag filter dust collector.

[0031] In this embodiment: when screening fused silica, the blower 5 is started, and the blower 5 can extract the dust generated during the screening process. Since the other end of the conveying pipe 6 is connected to the bag filter (the model of the bag filter is QMBC-2000, which is a well-known and mature existing technology, and its composition and working principle will not be described in detail here), the dust can be transported to the bag filter for dust removal treatment through the conveying pipe 6 to prevent the dust from affecting the surrounding environment.

[0032] As a technical optimization of this utility model, the front and rear inner walls of the screening box 1 are fixedly connected with multiple sets of support plates 12 located below multiple mounting frames 2, and vibration supports 13 are installed between the multiple sets of support plates 12 and the multiple mounting frames 2.

[0033] In this embodiment: through the cooperation between the support plate 12 and the vibration support 13, the mounting frame 2 can be vibrated while the mounting frame 2 is supported (the vibration support 13 is a metal helical spring support of model TH-200, which is a well-known and mature existing technology, and its composition and working principle will not be described in detail here).

[0034] As a technical optimization of this utility model, a vibration motor 14 is installed on the lower end face of multiple mounting frames 2.

[0035] In this embodiment, the vibration motor 14 can drive the mounting frame 2 to vibrate.

[0036] As a technical optimization of this utility model, a notch 15 is provided through the left side wall of the screening box 1, and a box door 16 matching the notch 15 is installed on the left side wall of the screening box 1.

[0037] In this embodiment, the notch 15 and the door 16 facilitate the replacement of the screen 4.

[0038] As a technical optimization of this utility model, the upper left end of the L-shaped plate 3 is threadedly connected with a fixing bolt 17 that abuts against the moving rod 8.

[0039] In this embodiment, the movable rod 8 can be fixed by fixing bolt 17.

[0040] As a technical optimization of this utility model, the abutment rod 11 and the inclined groove 9 are slidably connected by a trapezoidal slider and a trapezoidal sliding groove.

[0041] In this embodiment: the trapezoidal slider and trapezoidal groove enable the inclined groove 9 to move the abutment rod 11 up and down, while limiting the abutment rod 11 and the moving rod 8 to prevent the abutment rod 11 and the moving rod 8 from detaching from the through hole 10 and the receiving groove 7, respectively.

[0042] The working principle and usage process of this utility model are as follows: When in use, molten silica raw material is put into the screening box 1 through the feed port, and then multiple vibrating motors 14 are started. The multiple vibrating motors 14 drive multiple mounting frames 2 to vibrate, and the mounting frames 2 drive the screens 4 to vibrate. The molten silica raw material is screened through the vibrating screens 4. Since the mesh size of the multiple screens 4 increases from top to bottom, the molten silica raw material can be screened in multiple stages through the multiple screens 4. Then, the screened molten silica raw material is discharged through multiple discharge ports in sequence, thereby processing the molten silica raw material through screening.

[0043] When screening fused silica, the blower 5 is started. The blower 5 can extract the dust generated during the screening process. Since the other end of the conveying pipe 6 is connected to the bag filter, the dust can be transported to the bag filter for dust removal to prevent the dust from affecting the surrounding environment.

[0044] When replacing the screen 4, open the box door 16 and replace the screen 4 through the notch 15. Specifically, first loosen the fixing bolts 17 to fix the moving rod 8, then pull the moving rod 8. The moving rod 8 drives multiple inclined grooves 9 to move. The inclined grooves 9, together with the trapezoidal slider and trapezoidal slide, drive multiple abutment rods 11 to move upward in the through hole 10, thereby releasing the abutment state between the multiple abutment rods 11 and the screen 4. Then pull the screen 4 to pull it out from between the mounting frame 2 and the L-shaped plate 3, and take it out from the screening box 1 through the notch 15, thus disassembling the screen 4. When installing, simply reverse the above steps, which makes it convenient and quick to replace the screen 4, shortens the replacement time, and avoids affecting the screening efficiency of the fused silica raw material.

[0045] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0046] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A screening device for fused silica production, comprising a screening box (1), characterized in that: The screening box (1) is equipped with a multi-stage screening mechanism inside, and a dust removal mechanism is provided on the upper surface of the screening box (1). The multi-stage screening mechanism includes an installation frame (2) set inside the screening box (1). The upper end of the multiple installation frames (2) is fixedly connected with symmetrically distributed L-shaped plates (3) at both the front and rear ends. The multiple L-shaped plates (3) are arranged in pairs. A screen (4) is set between the upper end of the multiple installation frames (2) and the multiple sets of L-shaped plates (3). A fixing mechanism matching the screen (4) is set inside the multiple L-shaped plates (3). The fixing mechanism includes a storage groove (7) opened on the left side wall of the L-shaped plate (3). A moving rod (8) is slidably connected inside the storage groove (7). A plurality of evenly distributed inclined grooves (9) are opened on the lower end face of the moving rod (8). A plurality of evenly distributed through holes (10) communicating with the storage groove (7) are opened through the lower end face of the L-shaped plate (3). Abutment rods (11) are slidably connected inside the plurality of through holes (10). The upper ends of the plurality of abutment rods (11) extend into the interior of the plurality of inclined grooves (9) and are slidably connected to the inclined grooves (9). The lower ends of the plurality of abutment rods (11) extend to the exterior of the plurality of through holes (10) and abut against the screen (4).

2. The screening equipment for fused silica production according to claim 1, characterized in that: The dust removal mechanism includes a fan (5) installed on the upper surface of the screening box (1), the air outlet of the fan (5) is connected to a conveying pipe (6), and the other end of the conveying pipe (6) is connected to a bag filter.

3. The screening equipment for fused silica production according to claim 1, characterized in that: The screening box (1) has multiple sets of support plates (12) fixedly connected to the front and rear inner walls, which are located below multiple mounting frames (2). Vibration supports (13) are installed between the multiple sets of support plates (12) and the multiple mounting frames (2).

4. The screening equipment for fused silica production according to claim 1, characterized in that: Vibration motors (14) are installed on the lower end faces of multiple mounting frames (2).

5. A screening device for fused silica production according to claim 1, characterized in that: The left side wall of the screening box (1) has a through opening (15), and the left side wall of the screening box (1) is equipped with a box door (16) that matches the through opening (15).

6. A screening device for fused silica production according to claim 1, characterized in that: The upper left end of the L-shaped plate (3) is threaded with a fixing bolt (17) that abuts against the moving rod (8).

7. A screening device for fused silica production according to claim 1, characterized in that: The abutment rod (11) and the inclined groove (9) are slidably connected by a trapezoidal slider and a trapezoidal groove.

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