Raw material coarse and fine screening device for silicon carbide processing

Abstract

The raw material coarse and fine screening device for silicon carbide processing comprises a screening box, a drawing groove is formed in the inner wall of the screening box, a drawing type screen is connected into the drawing groove in a sliding mode, a feeding port is fixedly formed in the top face of the screening box, a screening brush is arranged above the drawing type screen, and a discharging port is formed in the top face of the screening box. A guide rod is fixedly mounted on the top surface of the screening brush, a driving motor is fixedly mounted on the outer wall of the screening box, a rotating column is mounted at the output end of the driving motor, a protective shell is welded to the inner wall of the screening box, a rotating rod is rotationally connected to the interior of the protective shell, and belt wheels are mounted on the surfaces of the rotating rod and the rotating column correspondingly; and the two belt wheels are connected through a transmission belt. According to the silicon carbide raw material screening device, the pulling type screen is adopted, pulling type screens of different specifications can be selected and replaced in different using processes, the effect of screening silicon carbide raw materials of different specifications is achieved, replacement is convenient and labor-saving, practicability is high, and the silicon carbide raw material screening device is worthy of popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon carbide screening, in particular to a raw material coarse and fine screening device for silicon carbide processing. Background Art

[0002] Silicon carbide powder is green, has a crystal structure, high hardness and strong cutting ability. Silicon carbide powder is mainly used in the abrasive industry. In the subsequent use of silicon carbide powder, there are special requirements for its powder classification and strict requirements for the particle size of silicon carbide powder. Different use processes require different particle sizes of silicon carbide. Therefore, after passing through the magnetic separator, the silicon carbide powder needs to be screened multiple times to avoid mixing large and small particles in the powder.

[0003] The existing technology has the following problems:

[0004] After extensive searching, it was found that Chinese Patent Publication No.: CN211587436U discloses a device for screening and grading silicon carbide, including a device body, the device body includes a first cavity, a second cavity and a third cavity from top to bottom, and a feed port is arranged at the top of the first cavity, a motor is installed at the top of the first cavity, and the output end of the motor is connected to a first rotating shaft, and a second rotating shaft and a third rotating shaft are arranged in sequence below the first rotating shaft, and multiple groups of screening brushes are fixed to the outer sides of the second rotating shaft and the third rotating shaft. The utility model drives the first rotating shaft, the second rotating shaft and the third rotating shaft to rotate through the output end of the motor, so that the second rotating shaft and the third rotating shaft drive the screening brush to rotate, brush the filter frame, and assist in the screening of its particles, and through the mutual cooperation of the card block and the card slot, the filter frame is detachably connected to the first cavity and the second cavity by rotation, which is convenient for disassembly and replacement of the filter frame.

[0005] However, the above patent still has problems that need to be improved during actual use. The most obvious one is that it is difficult to screen silicon carbide of different particle sizes according to actual needs, which leads to the problem of limited scope of application.

[0006] To this end, we proposed a raw material coarse and fine screening device for silicon carbide processing to solve the above-mentioned drawbacks. Utility Model Content

[0007] The utility model aims to solve the shortcomings in the prior art and proposes a raw material coarse and fine screening device for silicon carbide processing.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coarse and fine screening device for raw materials for silicon carbide processing, comprising a screening box, the inner wall of the screening box is provided with a pull-out groove, and a pull-out screen is slidably connected in the pull-out groove, a feed port is fixedly installed on the top surface of the screening box, a screening brush is arranged above the pull-out screen, and a guide rod is fixedly installed on the top surface of the screening brush, a driving motor is fixedly installed on the outer wall of the screening box, and a rotating column is installed on the output end of the driving motor, a protective shell is welded on the inner wall of the screening box, and a rotating rod is rotatably connected inside the protective shell, pulleys are installed on the surfaces of the rotating rod and the rotating column, and the two pulleys are connected by a transmission belt, one end of the rotating rod passes through the bottom surface of the protective shell and a support frame is installed, one end of the guide rod passes through the surface of the support frame and then a limiting block is installed, and a spring is sleeved on the outer side of the guide rod between the support frame and the screening brush.

[0009] Preferably, the surface of the screen brush elastically fits the surface of the pull-out screen.

[0010] Preferably, the length of the screen brush is the same as the diameter of the pull-out screen.

[0011] Preferably, a control panel is fixedly mounted on the surface of the screening box, and the control panel is electrically connected to the driving motor via a wire.

[0012] Preferably, a discharge port is provided on one side surface of the screening box at a position corresponding to the pull-out screen.

[0013] Preferably, the pull-out screen is made of 304 stainless steel.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The utility model adopts a pull-out screen, which can be replaced with pull-out screens of different specifications during different uses, so as to achieve the effect of screening silicon carbide raw materials of different specifications. The replacement is convenient and labor-saving, and the practicability is strong, which is worthy of promotion.

[0016] (2) The utility model adopts a screen brush elastically connected to the pull-out screen, which can ensure that the screen brush always maintains a good elastic fit with the pull-out screen. It is not easy to produce a gap between the screen brush and the pull-out screen, which effectively reduces the risk of clogging of the pull-out screen and ensures the screening effect and efficiency of the pull-out screen for silicon carbide raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required to be used in the embodiments are briefly introduced below.

[0018] Figure 1This is a cross-sectional view of a raw material coarse and fine screening device for silicon carbide processing proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the external structure of a raw material coarse and fine screening device for silicon carbide processing proposed by the utility model;

[0020] Figure 3 This is a right view of a raw material coarse and fine screening device for silicon carbide processing proposed by the utility model;

[0021] Figure 4 for Figure 1 A is an enlarged schematic diagram.

[0022] Legend:

[0023] 1. Screening box; 2. Feed inlet; 3. Pull-out slot; 4. Pull-out screen; 5. Driving motor; 6. Rotating column; 7. Pulley; 8. Protective shell; 9. Transmission belt; 10. Rotating rod; 11. Support frame; 12. Guide rod; 13. Limit block; 14. Screen brush; 15. Spring; 16. Control panel. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0025] Please refer to Figure 1-4A raw material coarse and fine screening device for silicon carbide processing comprises a screening box 1, the inner wall of the screening box 1 is provided with a pull-out groove 3, and a pull-out screen 4 is slidably connected in the pull-out groove 3, a feed port 2 is fixedly installed on the top surface of the screening box 1, a screen brush 14 is arranged above the pull-out screen 4, and a guide rod 12 is fixedly installed on the top surface of the screen brush 14, a driving motor 5 is fixedly installed on the outer wall of the screening box 1, and a rotating column 6 is installed at the output end of the driving motor 5, a protective shell 8 is welded on the inner wall of the screening box 1, and a rotating rod 10 is rotatably connected inside the protective shell 8, pulleys 7 are installed on the surfaces of the rotating rod 10 and the rotating column 6, and the two pulleys 7 are connected by a transmission belt 9, one end of the rotating rod 10 passes through the bottom surface of the protective shell 8 and a support frame 11 is installed, one end of the guide rod 12 passes through the surface of the support frame 11 and a limiting block 13 is installed, the support frame 1 A spring 15 is sleeved on the outer side of the guide rod 12 between 1 and the screen brush 14. When in use, different specifications of the pull-out screen 4 are selected according to the screening requirements, and then the silicon carbide raw material that needs to be coarsely and finely screened is put into the feed port 2. At this time, the screen brush 14 rotates to perform coarse and fine screening on the silicon carbide. Among them, the pull-out screen 4 can choose to replace screens of different specifications during different uses to achieve the effect of screening silicon carbide raw materials of different specifications, and the replacement is convenient and labor-saving, with strong practicality and worthy of promotion. Secondly, the screen brush 14 elastically connected to the pull-out screen 4 is adopted, which can ensure that the screen brush 14 always maintains a good elastic fitting effect with the pull-out screen 4, and the screen brush 14 is not easy to produce a gap with the pull-out screen 4, which effectively reduces the risk of clogging of the pull-out screen 4 and ensures the screening effect and efficiency of the pull-out screen 4 on the silicon carbide raw material.

[0026] In this embodiment, the surface of the screen brush 14 elastically fits the surface of the pull-out screen 4 .

[0027] Specifically, the dredging effect on the screen brush 14 is ideal, and the pull-out screen 4 is prevented from being blocked.

[0028] In this embodiment, the length of the screen brush 14 is the same as the diameter of the pull-out screen 4 .

[0029] Specifically, the dredging effect and efficiency are guaranteed, and the probability of clogging of the pull-out screen 4 is reduced.

[0030] In this embodiment: a control panel 16 is fixedly mounted on the surface of the screening box 1 , and the control panel 16 is electrically connected to the driving motor 5 via a wire.

[0031] Specifically, it is a common circuit connection structure, which will not be described in detail here.

[0032] In this embodiment: a discharge port is provided on one side surface of the screening box 1 at a position corresponding to the pull-out screen 4 .

[0033] Specifically, the filtered impurities and large particles can be discharged.

[0034] In this embodiment: the pull-out screen 4 is made of 304 stainless steel.

[0035] Specifically, the service life is extended and the use cost is reduced.

[0036] In this embodiment: the control panel control circuit can be implemented by simple programming by those skilled in the art, which is common knowledge in the art. It is only used without modification, so the control method and circuit connection will not be described in detail.

[0037] Working principle: When working, select pull-out screens 4 of different specifications according to screening requirements, and then put the silicon carbide raw materials that need to be coarsely or finely screened into the feed port 2. At this time, the screen brush 14 rotates to perform coarse and fine screening on the silicon carbide. The pull-out screen 4 can be replaced with screens of different specifications during different uses to achieve the effect of screening silicon carbide raw materials of different specifications. The replacement is convenient and labor-saving, and the practicability is strong, which is worthy of promotion. Secondly, the screen brush 14 elastically connected to the pull-out screen 4 is used to ensure that the screen brush 14 always maintains a good elastic fit with the pull-out screen 4. The screen brush 14 is not easy to produce a gap with the pull-out screen 4, which effectively reduces the risk of blockage of the pull-out screen 4 and ensures the screening effect and efficiency of the pull-out screen 4 on the silicon carbide raw materials.

[0038] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A raw material coarse and fine screening device for silicon carbide processing, comprising a screening box (1), characterized in that: The inner wall of the screening box (1) is provided with a pull-out groove (3), and a pull-out screen (4) is slidably connected in the pull-out groove (3); a feed port (2) is fixedly installed on the top surface of the screening box (1); a screen brush (14) is arranged above the pull-out screen (4), and a guide rod (12) is fixedly installed on the top surface of the screen brush (14); a driving motor (5) is fixedly installed on the outer wall of the screening box (1), and a rotating column (6) is installed at the output end of the driving motor (5); a protective shell (8) is welded on the inner wall of the screening box (1), and the protective shell (8) is welded on the inner wall of the screening box (1); A rotating rod (10) is rotatably connected inside the shell (8), and pulleys (7) are installed on the surfaces of the rotating rod (10) and the rotating column (6), and the two pulleys (7) are connected by a transmission belt (9). One end of the rotating rod (10) passes through the bottom surface of the protective shell (8) and is installed with a support frame (11), and one end of the guide rod (12) passes through the surface of the support frame (11) and is installed with a limiting block (13), and a spring (15) is sleeved on the outer side of the guide rod (12) between the support frame (11) and the screen brush (14).

2. A raw material coarse and fine screening device for silicon carbide processing according to claim 1, characterized in that: The surface of the screen brush (14) is elastically fitted to the surface of the pull-out screen (4).

3. The raw material coarse and fine screening device for silicon carbide processing according to claim 1, characterized in that: The length of the screen brush (14) is the same as the diameter of the pull-out screen (4).

4. The raw material coarse and fine screening device for silicon carbide processing according to claim 1, characterized in that: A control panel (16) is fixedly mounted on the surface of the screening box (1), and the control panel (16) is electrically connected to the driving motor (5) via a wire.

5. The raw material coarse and fine screening device for silicon carbide processing according to claim 1, characterized in that: A discharge port is provided on one side surface of the screening box (1) at a position corresponding to the pull-out screen (4).

6. The raw material coarse and fine screening device for silicon carbide processing according to claim 1, characterized in that: The pull-out screen (4) is made of 304 stainless steel.

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