Silicon carbide powder purifying and filtering device

Abstract

The utility model relates to the field of filtering devices, in particular to a silicon carbide powder purifying and filtering device which is characterized in that a hopper is arranged at the top of a box body, a discharging pipe is arranged at the lower end of the hopper, a material receiving box is arranged in the box body below the discharging pipe, a material sprinkling pipe is arranged on one side of the material receiving box, and a long-strip-shaped filtering plate is arranged in the box body; the high end of the filtering plate is located below the material receiving box, a supporting shaft is fixedly installed at the bottom of the material receiving box, and the supporting shaft is connected with a linkage mechanism used for driving the material spraying pipe to swing in a reciprocating mode in the width direction of the filtering plate; when the rotating disc rotates, the swing arm is driven by the connecting rod to swing back and forth, the swing arm drives the material spraying pipe to swing back and forth left and right in the width direction of the filter plate through the supporting shaft and the material receiving box, and silicon carbide powder in the material receiving box is discharged through the material spraying pipe and evenly sprayed to the top of the high end of the filter plate.

Description

Technical Field

[0001] The utility model relates to the field of filtering devices, in particular to a silicon carbide powder purification filtering device. Background Art

[0002] Silicon carbide, also known as carbon silicon stone, is produced by smelting quartz sand, petroleum coke (or coal coke), and sawdust (salt is added when producing green silicon carbide) at high temperatures in an electric resistance furnace. Silicon carbide is widely used in various fields due to its stable chemical properties, high thermal conductivity, low thermal expansion coefficient, and excellent wear resistance.

[0003] Silicon carbide powder often contains impurities during processing, necessitating impurity removal and filtration. Existing filtering devices, such as the utility model patent with application number CN217615995U, disclose a highly efficient filtration device for superhard silicon carbide micropowder. The device features a filter plate within a screening box, a hopper mounted in the middle of the top of the screening box, and a drive assembly within the hopper. The assembly includes a drive motor, a rotating rod, and a quantitative rotating plate. Activating the drive motor drives the rotating rod and plate to perform quantitative rotary feeding.

[0004] However, the above-mentioned filtering device still has the following defects: the silicon carbide powder discharged from the lower hopper tends to accumulate on the top of the filter plate, resulting in a low filtering efficiency of the silicon carbide powder, which needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide a silicon carbide powder purification and filtering device, which can efficiently disperse the silicon carbide powder on a filter plate to solve the defects mentioned in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A silicon carbide powder purification and filtering device comprises a box body, a hopper is provided on the top of the box body, a discharge pipe is provided at the lower end of the hopper, and the lower end of the discharge pipe extends into the box body; a material receiving box is provided in the box body below the discharge pipe, and a sprinkler pipe is provided on one side of the material receiving box, and the sprinkler pipe extends downwardly at an angle away from one end of the material receiving box; a long strip filter plate is provided in the box body, and one end of the filter plate is inclined and lowered along the length direction and extends out of the box body, and the high end of the filter plate is located below the material receiving box; a vertically extending support shaft is fixedly installed on the bottom of the material receiving box, and the support shaft is rotatably installed in the box body, and the support shaft is connected to a linkage mechanism for driving the sprinkler pipe to swing back and forth along the width direction of the filter plate.

[0008] As a preferred technical solution, the linkage mechanism includes a mounting shaft rotatably installed in the box body, the mounting shaft extends vertically, a coaxially arranged turntable is fixedly installed on the mounting shaft, an eccentrically arranged first pin is fixedly installed on the turntable, a swing arm is fixedly installed on the support shaft, a second pin is fixedly installed on the swing arm which is eccentrically arranged with respect to the support shaft, and a connecting rod is hinged between the first pin and the second pin.

[0009] As an optimal technical solution, a quantitative cavity is provided in the discharge pipe, and the quantitative cavity is cylindrical with an axis extending horizontally. A coaxially arranged turntable is rotatably installed in the quantitative cavity, and the outer diameter of the turntable matches the inner diameter of the quantitative cavity. A plurality of material troughs are provided on the outer peripheral surface of the turntable, which are evenly spaced around its circumference.

[0010] As a preferred technical solution, a coaxially arranged central shaft is fixedly installed on the turntable, one end of the central shaft is connected to the driving device, and the other end of the central shaft is connected to a parallel transmission shaft, and the transmission shaft and the installation shaft are connected by a pair of mutually meshing bevel gears.

[0011] As a preferred technical solution, the bottom wall of the box body is in the shape of a funnel with a low middle and high sides, and a discharge pipe is fixedly installed at the bottom center of the box body.

[0012] As a preferred technical solution, upwardly extending side baffles are fixedly mounted on the high end edge of the filter plate and both side edges of the filter plate along the width direction.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. When the turntable rotates, the connecting rod drives the swing arm to swing back and forth. The swing arm drives the sprinkling pipe to swing back and forth along the width direction of the filter plate through the supporting shaft and the material receiving box, so that the silicon carbide powder in the material receiving box is discharged through the sprinkling pipe and evenly spread on the top of the high end of the filter plate, thereby avoiding the accumulation of silicon carbide powder on the filter plate and improving the filtration efficiency of silicon carbide powder;

[0015] 2. The central shaft and the turntable are driven by a driving motor. During the rotation of the turntable, the material trough at the top of the turntable will carry the silicon carbide powder and transport the silicon carbide powder to the discharge pipe located below the quantitative chamber, thereby controlling the discharge rate of the silicon carbide powder through the discharge pipe to avoid the silicon carbide powder being discharged too quickly and accumulating a large amount of silicon carbide powder on the top of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0018] Figure 2 yes Figure 1 A cross-sectional schematic diagram;

[0019] Figure 3 This is a schematic diagram of the structure inside the box of an embodiment of the present utility model;

[0020] Figure 4 It is a structural diagram of the material receiving box implemented by the present utility model;

[0021] Figure 5 It is a structural diagram of the linkage mechanism of the material receiving box implemented in the present utility model.

[0022] In the figure: 1- box body; 2- hopper; 3- discharge pipe; 4- material receiving box; 5- material sprinkling pipe; 6- filter plate; 7- support shaft; 8- load-bearing plate; 9- mounting shaft; 10- turntable; 11- first pin shaft; 12- swing arm; 13- second pin shaft; 14- connecting rod; 15- side baffle; 16- L-shaped plate; 17- support plate; 18- spring; 19- vibration motor; 20- discharge pipe; 21- metering chamber; 22- turntable; 23- trough; 24- center shaft; 25- drive motor; 26- belt; 27- transmission shaft; 28- bevel gear. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figures 1 to 5The figure shows a device for purifying and filtering silicon carbide powder, comprising a box body 1, which is in the shape of a long strip extending front to back, and a hopper 2 is provided on the top of the rear end of the box body 1, which is used to store the silicon carbide powder to be purified and filtered; a discharge pipe 3 connected to the hopper 2 is welded at the lower end of the hopper 2, and the lower end of the discharge pipe 3 extends into the box body 1, and the discharge pipe 3 is welded to the top wall of the box body 1; a receiving box 4 is provided in the box body 1 below the discharge pipe 3, and a sprinkling pipe 5 is provided on the front side of the receiving box 4, and the front end of the sprinkling pipe 5 extends downwardly at an angle, and the bottom wall of the receiving box 4 is inclined and lowered toward the sprinkling pipe 5, which is conducive to the efficient discharge of silicon carbide powder in the receiving box 4 through the sprinkling pipe 5; a filter plate 6 is provided in the box body 1, and the filter plate 6 is evenly distributed with a plurality of filter holes, the filter plate 6 is in the shape of a long strip extending front and back, and the front end of the filter plate 6 is tilted and lowered and extends out of the outside of the box body 1. A discharge port for the front end of the filter plate 6 to extend is provided on the front side wall of the box body 1, and the rear end of the filter plate 6 is located below the receiving box 4; the bottom of the receiving box 4 is fixedly installed with a mounting plate by bolts, and a vertically extending support shaft 7 is welded to the bottom of the mounting plate. The support shaft 7 is located directly below the discharge pipe 3, and the rear end in the box body 1 is fixedly installed with a bearing plate 8 by bolts. The support shaft 7 is rotatably mounted on the bearing plate 8 through a bearing, and the support shaft 7 is connected with a linkage mechanism for driving the sprinkling pipe 5 to swing back and forth along the width direction of the filter plate 6.

[0025] Specifically, such as Figure 2 and Figure 5 As shown, the linkage mechanism includes a mounting shaft 9 rotatably mounted on the supporting plate 8 through a bearing, the mounting shaft 9 extends vertically, and a coaxially arranged turntable 10 is fixedly mounted on the lower end of the mounting shaft 9, an eccentrically arranged first pin 11 is embedded in the bottom of the turntable 10, and a swing arm 12 extending radially thereof is fixedly mounted on the lower end of the support shaft 7 by bolts, and a second pin 13 eccentrically arranged with the support shaft 7 is embedded in the bottom of the end of the swing arm 12 away from the support shaft 7, the first pin 11 and the second pin 13 both extend vertically parallel to the support shaft 7, and a connecting rod 14 is hinged between the first pin 11 and the second pin 13.

[0026] During use, the silicon carbide powder to be purified and filtered in the hopper 2 first falls downward into the receiving box 4 through the discharge pipe 3. At the same time, the turntable 10 rotates and drives the swing arm 12 to swing back and forth through the connecting rod 14. The swing arm 12 drives the sprinkling pipe 5 to swing back and forth along the width direction of the filter plate 6 through the support shaft 7 and the receiving box 4, so that the silicon carbide powder in the receiving box 4 is discharged through the sprinkling pipe 5 and evenly spread on the high end top of the filter plate 6, thereby avoiding the silicon carbide powder from accumulating in one place on the filter plate 6 and improving the filtration efficiency of the silicon carbide powder.

[0027] In addition, the rear edge of the filter plate 6 and the left and right sides of the filter plate 6 are welded with side baffles 15 extending upward to prevent silicon carbide powder from falling through the rear end and left and right sides of the filter plate 6.

[0028] like Figure 3 As shown, L-shaped plates 16 are fixed to the outer sides of the side baffles 15 on the left and right sides of the filter plate 6 by bolts, and support plates 17 corresponding to the L-shaped plates 16 are welded to the inner sides of the left and right side walls of the box body 1. The support plates 17 are located below the corresponding L-shaped plates 16. A spring 18 is connected between the support plates 17 and the corresponding L-shaped plates 16. The two ends of the spring 18 are fixed to the support plates 17 and the L-shaped plates 16 by bolts or welding. A vibration motor 19 is also installed on the bottom of the filter plate 6 by bolts. When the sprinkling pipe 5 spreads silicon carbide powder on the top of the high end of the filter plate 6, the vibration motor 19 drives the filter plate 6 to vibrate, causing the silicon carbide powder to slide forward along the inclined filter plate 6. During this process, the powdered silicon carbide powder can pass through the filter holes on the filter plate 6 and fall downward to the bottom of the box body 1. Large particles of impurities will be discharged from the front end of the filter plate 6 through the discharge port to the outside of the box body 1, thereby achieving purification and filtration of the silicon carbide powder.

[0029] In addition, the bottom wall of the box body 1 is funnel-shaped with a low middle and high sides. A discharge pipe 20 is welded to the bottom center of the box body 1. The upper end of the discharge pipe 20 is connected to the inner cavity of the box body 1 to centrally collect the filtered silicon carbide powder.

[0030] like Figure 4 As shown, a metering cavity 21 is integrally formed in the discharge tube 3. The metering cavity 21 is cylindrical with the axis extending horizontally forward and backward, and the diameter of the metering cavity 21 is larger than the width of the discharge tube 3. A coaxially arranged turntable 22 is rotatably installed in the metering cavity 21. The outer diameter of the turntable 22 matches the inner diameter of the metering cavity 21. A plurality of material troughs 23 are provided on the outer peripheral surface of the turntable 22, which are evenly spaced around its circumference.

[0031] like Figure 2 As shown, a coaxially arranged central shaft 24 is fixedly mounted on the turntable 22, and the front and rear ends of the central shaft 24 extend to the outside of the metering chamber 21, and the central shaft 24 is rotatably connected to the front and rear side walls of the metering chamber 21 respectively through bearings, and the front end of the central shaft 24 is connected to the driving device, which is specifically a driving motor 25. The driving motor 25 is mounted on the top of the housing 1 by bolts, and the front end of the central shaft 24 is connected to the rotating shaft of the driving motor 25 through a coupling. In specific use, the central shaft 24 and the turntable 22 are driven to rotate by the driving motor 25. During the rotation of the turntable 22, the trough 23 located at the top of the turntable 22 will carry the silicon carbide powder and transport the silicon carbide powder to the discharge pipe 3 located below the metering chamber 21, thereby controlling the discharge rate of the silicon carbide powder through the discharge pipe 3 to prevent the silicon carbide powder from being discharged too quickly, resulting in a large amount of silicon carbide powder accumulating on the top of the filter plate 6.

[0032] like Figure 5As shown, the rear end of the central shaft 24 is connected to the parallel transmission shaft 27 through a belt 26. The transmission shaft 27 is rotatably mounted on the rear side wall of the box body 1 through a bearing. The front end of the transmission shaft 27 is connected to the mounting shaft 9 through a pair of mutually meshing bevel gears 28. The driving motor 25 drives the central shaft 24 to rotate and drives the transmission shaft 27 to rotate through the belt 26. The transmission shaft 27 drives the mounting shaft 9 to rotate through the bevel gear 28, and then the mounting shaft 9 drives the turntable 10 to rotate and causes the sprinkler pipe 5 to swing back and forth along the width direction of the filter plate 6.

[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A silicon carbide powder purification and filtration device, characterized by: The filter press has one end inlet pipe, the other end in outlet pipe is provided with an outlet pipe, and the outlet pipe is provided with an outlet pipe.

2. The silicon carbide powder purification and filtration device according to claim 1, characterized in that: The linkage mechanism includes a mounting shaft rotatably mounted in the box body, the mounting shaft extends vertically, a coaxially arranged turntable is fixedly mounted on the mounting shaft, an eccentrically arranged first pin is fixedly mounted on the turntable, a swing arm is fixedly mounted on the support shaft, a second pin is fixedly mounted on the swing arm and eccentrically arranged with respect to the support shaft, and a connecting rod is hinged between the first pin and the second pin.

3. The silicon carbide powder purification and filtration device according to claim 2, characterized in that: A quantitative cavity is provided in the discharge pipe, and the quantitative cavity is cylindrical with an axis extending horizontally. A coaxially arranged turntable is rotatably installed in the quantitative cavity, and the outer diameter of the turntable matches the inner diameter of the quantitative cavity. A plurality of material troughs are provided on the outer peripheral surface of the turntable, which are evenly spaced around its circumference.

4. The silicon carbide powder purification and filtration device according to claim 3, characterized in that: A coaxially arranged central shaft is fixedly mounted on the turntable, one end of the central shaft is connected to a driving device, and the other end of the central shaft is connected to a parallel transmission shaft, and the transmission shaft is connected to the mounting shaft through a pair of mutually meshing bevel gears.

5. The silicon carbide powder purification and filtration device according to claim 1, characterized in that: The bottom wall of the box body is in a funnel shape with a low middle and high surroundings, and a discharge pipe is fixedly installed at the bottom center of the box body.

6. The silicon carbide powder purification and filtration device according to claim 1, characterized in that: The high end edge of the filter plate and both side edges of the filter plate along the width direction are fixedly mounted with side baffles extending upward.

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