A silicon carbide based powder vibration screening device

Abstract

The utility model relates to the technical field of silicon carbide-based powder screening, specifically a silicon carbide-based powder vibration screening device, comprising: a bottom plate, the bottom plate is in a rectangular plate shape, the left and right ends of the top of the bottom plate are fixedly connected to a fixing seat, the bottom of the inner cavity of the fixing seat is fixedly connected to a buffer spring, and the top of the buffer spring is fixedly connected to a support rod. The utility model works through a negative pressure fan, which can absorb the gas in the filter box, so that the interior of the filter box is in a negative pressure state, thereby forcing the guide pipe to absorb the micro powder generated by the vibration work in the screening box through the dust collecting hood, and send it into the filter box to be filtered through the filter screen plate and then discharge the gas, and the filtered micro powder can be left in the filter box, which is convenient for collection, avoiding environmental pollution and the impact on the health of the staff and the waste of resources, and facilitating people's use.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon carbide based powder screening, in particular to a silicon carbide based powder vibration screening device. Background Art

[0002] Silicon carbide-based powder is mainly used in the abrasive industry. There are high requirements for the grading and particle size of silicon carbide-based powder. In order to complete the screening of silicon carbide-based powder, a vibrating screen is required. The working principle of the vibrating screen is to use a vibrating motor to drive the entire screen to vibrate, and use the vibration effect to make the powder that meets the particle size pass through the screen quickly.

[0003] At present, a patent document with publication number CN218691348U discloses a silicon carbide-based powder vibration screening device, including a vibration box, a control panel fixedly installed on the outer wall of the vibration box, vibration motors fixedly installed on both sides of the outer wall of the vibration box, a placement box arranged inside the vibration box, a frame arranged at the lower end of the placement box, a screen fixedly connected to the inner side of the frame, a lifting device arranged at the lower end of the placement box, two groups of mounting holes opened in the frame, a mounting plate fixedly connected in the mounting holes, a threaded rod rotatably installed in the mounting plate through a bearing, two threaded sections with opposite thread directions opened on both sides of the threaded rod, and a plug rod threadedly connected to the threaded rod. In the utility model, the frame and the screen at the lower end of the placement box are convenient for quick replacement, which is convenient for quick replacement of the screen according to screening needs, and is easy to operate.

[0004] However, the above-mentioned existing silicon carbide-based powder vibration screening device adopts an open vibration screening. Since the mass of silicon carbide-based powder is small, large dust will be splashed during screening, and the dust caused by the fine powder will pollute the surrounding air, which makes it easy for the operating staff to inhale the fine powder dust, causing a certain impact on the health of the staff. For this reason, we propose a silicon carbide-based powder vibration screening device. Utility Model Content

[0005] The utility model aims to provide a silicon carbide-based powder vibration screening device, which has the advantages of avoiding dust and collecting fine powder, and solves the problem that the existing silicon carbide-based powder vibration screening device adopts an open vibration screening, and due to the small mass of silicon carbide-based powder, large dust will be splashed during screening, and the dust caused by the fine powder will pollute the surrounding air, and it is easy for the operating staff to inhale the fine powder dust, which has a certain impact on the health of the staff.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a silicon carbide-based powder vibration screening device, comprising:

[0007] A bottom plate, the bottom plate is in a rectangular plate shape, the left and right ends of the top of the bottom plate are fixedly connected with a fixing seat, the bottom of the inner cavity of the fixing seat is fixedly connected with a buffer spring, and the top of the buffer spring is fixedly connected with a support rod;

[0008] A screening box, the screening box is in a rectangular box shape, the bottom of the screening box is fixedly connected to the top of the support rod, a feed hopper is arranged on the top of the screening box, and a cover plate is arranged on the top of the feed hopper, a vibration motor is fixedly installed on the bottom of the screening box, and a sealing door is arranged on the upper end of the front of the screening box;

[0009] A filter box, wherein the bottom of the filter box is fixedly connected to the rear end of the top of the base plate, a negative pressure fan is fixedly installed at the lower end of the front surface of the filter box, and the air inlet end of the negative pressure fan extends to the lower end of the inner cavity of the filter box through a pipeline, the inner cavity of the filter box is fixedly connected with an inclined filter screen plate, the rear side of the inner cavity of the screening box is fixedly connected with a dust collecting hood, and a guide pipe is connected between the rear side of the dust collecting hood and the upper end of the rear side of the filter box.

[0010] Preferably, a material guide platform having a right-angled triangle longitudinal section is fixedly connected to the bottom of the inner cavity of the screening box, a material outlet is arranged at the lower end of the right side of the screening box, and a first sealing cover is sleeved on the right end of the material outlet.

[0011] Preferably, the support rod and the fixing seat are matched, and the support rod slides on the inner side of the fixing seat.

[0012] Preferably, a discharge port is provided at the lower end of the rear side of the filter box, and a second sealing cover is provided at the rear end of the discharge port.

[0013] Preferably, the flow guide tube is an elastic hose, and the number of the flow guide tubes is three.

[0014] Preferably, a control panel is fixedly mounted on the front end of the top of the base plate, and the output end of the control panel is electrically connected to the input ends of the negative pressure fan and the vibration motor respectively through wires.

[0015] Preferably, a sealing positioning seat is fixedly connected to the upper end of the inner cavity of the screening box, a through groove is opened at the corresponding position of the sealing positioning seat on the left side of the screening box, a sub-screening plate is arranged on the inner side of the through groove and the sealing positioning seat, a sealing plate is fixedly connected to the left side of the sub-screening plate, and a sealing gasket is arranged between the right end of the sealing plate and the left side of the screening box.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] 1. The utility model can absorb the gas in the filter box through the operation of the negative pressure fan, so that the interior of the filter box is in a negative pressure state, thereby forcing the guide pipe to absorb the fine powder generated by the vibration work in the screening box through the dust collecting hood, and send it into the filter box to be filtered through the filter screen plate and then discharge the gas, and the filtered fine powder can be retained in the filter box, which is convenient for collection, avoiding environmental pollution and the impact on the health of workers and the waste of resources, and facilitating people's use.

[0018] 2. The utility model can position the sub-screen plate by setting a sealing positioning seat and a sealing gasket. When the sub-screen plate is driven by the sealing plate to exit the sealing positioning seat, the sub-screen plate can be quickly disassembled. Then, after selecting sub-screen plates of different sizes according to needs, the sub-screen plate is driven by the sealing plate to pass through the through groove and enter the sealing positioning seat again, so that the sub-screen plate can be quickly replaced. The operation is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model from the first perspective;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model from a third viewing angle;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the filter box of the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the fixing seat of the utility model.

[0024] In the figure: 1. bottom plate; 2. screening box; 3. discharge port; 4. filter box; 5. fixing seat; 6. support rod; 7. feed hopper; 8. control panel; 9. guide pipe; 10. sealing positioning seat; 11. sealing plate; 12. sealing gasket; 13. screening plate; 14. guide table; 15. vibration motor; 16. negative pressure fan; 17. dust hood; 18. filter screen plate; 19. discharge port; 20. buffer spring; 21. sealing door. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] It should be noted that the base plate 1, screening box 2, discharge port 3, filter box 4, fixing seat 5, support rod 6, feed hopper 7, control panel 8, guide pipe 9, sealing positioning seat 10, sealing plate 11, sealing gasket 12, sub-screening plate 13, guide table 14, vibration motor 15, negative pressure fan 16, dust hood 17, filter screen plate 18, discharge port 19, buffer spring 20 and sealing door 21 of the present application are all universal standard parts or parts known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods, and they are connected to the power circuit using the conventional connection method in the prior art, which will not be described in detail here.

[0029] Embodiment 1

[0030] See also Figure 1-Figure 5 As shown, the utility model provides a technical solution: a silicon carbide-based powder vibration screening device, comprising: a bottom plate 1, a screening box 2, and a filter box 4;

[0031] The bottom plate 1 is in the shape of a rectangular plate, and the left and right ends of the top of the bottom plate 1 are fixedly connected with a fixing seat 5, and the bottom of the inner cavity of the fixing seat 5 is fixedly connected with a buffer spring 20, and the top of the buffer spring 20 is fixedly connected with a support rod 6, and the support rod 6 is adapted to the fixing seat 5, and the support rod 6 slides on the inner side of the fixing seat 5. The screening box 2 is in the shape of a rectangular box, and the bottom of the screening box 2 is fixedly connected to the top of the support rod 6. A feed hopper 7 is provided on the top of the screening box 2, and a cover plate is provided on the top of the feed hopper 7. A vibration motor 15 is fixedly installed on the bottom of the screening box 2, and a sealing door 21 is provided on the upper end of the front of the screening box 2. The bottom of the filter box 4 is fixedly connected to the rear end of the top of the bottom plate 1, and a discharge port 19 is provided at the lower end of the rear side of the filter box 4, and a second cover is provided at the rear end of the discharge port 19. A negative pressure fan 16 is fixedly installed at the lower end of the surface, and the air inlet end of the negative pressure fan 16 extends to the lower end of the inner cavity of the filter box 4 through a pipeline, and the inner cavity of the filter box 4 is fixedly connected with an inclined filter screen plate 18, and a dust collecting hood 17 is fixedly connected to the rear side of the inner cavity of the screening box 2. A guide pipe 9 is connected between the rear side of the dust collecting hood 17 and the upper end of the rear side of the filter box 4. The guide pipe 9 is an elastic hose, and the number of the guide pipes 9 is three. A material guide table 14 with a right-angled triangle longitudinal section is fixedly connected to the bottom of the inner cavity of the screening box 2, and a discharge port 3 is provided at the lower end of the right side of the screening box 2, and the right end of the discharge port 3 is provided with a first cover. A control panel 8 is fixedly installed at the front end of the top of the bottom plate 1, and the output end of the control panel 8 is electrically connected to the input end of the negative pressure fan 16 and the vibration motor 15 through wires.

[0032] The present technical solution is to set up the feed hopper 7, after removing the cover plate on the top thereof, feed the silicon carbide-based powder to be screened into the inner cavity of the screening box 2, and drop it on the top of the screening plate 13, then close the cover plate, and turn on the device by the control panel 8, then the vibration motor 15 works, and with the assistance of the fixed seat 5, the support rod 6 and the buffer spring 20, the screening box 2 realizes effective vibration screening, and the silicon carbide-based powder after screening drops on the top of the guide table 14 and can be discharged through the discharge port 3 after being guided, while the silicon carbide-based powder that has not been screened, After the equipment stops working, the sealing door 21 is opened and the equipment can be taken out. When the negative pressure fan 16 is working, it can absorb the gas in the filter box 4, so that the interior of the filter box 4 is in a negative pressure state, thereby forcing the guide pipe 9 to absorb the fine powder generated by the vibration work in the screening box 2 through the dust collecting hood 17, and send it into the filter box 4 to be filtered through the filter screen plate 18 and then discharge the gas. The filtered fine powder can be left in the filter box 4, which is convenient for its collection, avoiding environmental pollution, affecting the health of workers and wasting resources, and facilitating people's use.

[0033] Embodiment 2

[0034] On the basis of embodiment 1, the present invention is as follows Figure 3As shown, a sealing positioning seat 10 is fixedly connected to the upper end of the inner cavity of the screening box 2, and a through groove is opened at the corresponding position of the sealing positioning seat 10 on the left side of the screening box 2. A sub-screening plate 13 is arranged on the inner side of the through groove and the sealing positioning seat 10, and a sealing plate 11 is fixedly connected to the left side of the sub-screening plate 13, and a sealing gasket 12 is arranged between the right end of the sealing plate 11 and the left side of the screening box 2.

[0035] The technical solution can position the sub-sieve plate 13 by setting the sealing positioning seat 10 and the sealing gasket 12. When the sealing plate 11 drives the sub-sieve plate 13 to exit the sealing positioning seat 10, the sub-sieve plate 13 can be quickly disassembled. Then, after selecting sub-sieve plates 13 of different sizes according to needs, when the sealing plate 11 drives the sub-sieve plate 13 to pass through the through groove and enter the sealing positioning seat 10 again, the sub-sieve plate 13 can be quickly replaced. The operation is simple and easy to use.

[0036] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0037] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A silicon carbide based powder vibration screening device, characterized in that: include: A bottom plate (1), the bottom plate (1) being in the shape of a rectangular plate, the left and right ends of the top of the bottom plate (1) being fixedly connected to a fixing seat (5), the bottom of the inner cavity of the fixing seat (5) being fixedly connected to a buffer spring (20), and the top of the buffer spring (20) being fixedly connected to a support rod (6); A screening box (2), the screening box (2) being in the shape of a rectangular box, the bottom of the screening box (2) being fixedly connected to the top of the support rod (6), the top of the screening box (2) being provided with a feed hopper (7), and the top of the feed hopper (7) being provided with a cover plate, the bottom of the screening box (2) being fixedly mounted with a vibration motor (15), and the upper end of the front of the screening box (2) being provided with a sealing door (21); A filter box (4), wherein the bottom of the filter box (4) is fixedly connected to the rear end of the top of the base plate (1), a negative pressure fan (16) is fixedly installed at the lower end of the front surface of the filter box (4), and the air inlet end of the negative pressure fan (16) extends to the lower end of the inner cavity of the filter box (4) through a pipeline, the inner cavity of the filter box (4) is fixedly connected to an inclined filter screen plate (18), the rear side of the inner cavity of the screening box (2) is fixedly connected to a dust collecting cover (17), and a guide pipe (9) is connected between the rear side of the dust collecting cover (17) and the upper end of the rear side of the filter box (4).

2. A silicon carbide-based powder vibration screening device according to claim 1, characterized in that: A material guide platform (14) having a right-angled triangle longitudinal section is fixedly connected to the bottom of the inner cavity of the screening box (2), a material outlet (3) is arranged at the lower end of the right side of the screening box (2), and a first sealing cover is sleeved on the right end of the material outlet (3).

3. A silicon carbide-based powder vibration screening device according to claim 1, characterized in that: The support rod (6) is matched with the fixing seat (5), and the support rod (6) slides on the inner side of the fixing seat (5).

4. A silicon carbide-based powder vibration screening device according to claim 1, characterized in that: A discharge port (19) is provided at the lower end of the rear side of the filter box (4), and a second sealing cover is provided at the rear end of the discharge port (19).

5. The silicon carbide-based powder vibration screening device according to claim 1, characterized in that: The flow guide tube (9) is an elastic hose, and the number of the flow guide tubes (9) is three.

6. The silicon carbide-based powder vibration screening device according to claim 1, characterized in that: A control panel (8) is fixedly mounted on the front end of the top of the base plate (1), and the output end of the control panel (8) is electrically connected to the input ends of the negative pressure fan (16) and the vibration motor (15) respectively through wires.

7. The silicon carbide-based powder vibration screening device according to claim 1, characterized in that: A sealing positioning seat (10) is fixedly connected to the upper end of the inner cavity of the screening box (2); a through slot is provided at a corresponding position of the sealing positioning seat (10) on the left side of the screening box (2); a sub-screening plate (13) is provided inside the through slot and the sealing positioning seat (10); a sealing plate (11) is fixedly connected to the left side of the sub-screening plate (13); and a sealing gasket (12) is provided between the right end of the sealing plate (11) and the left side of the screening box (2).

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