Silicon carbide grinding equipment

Abstract

The utility model discloses a silicon carbide grinding device, including a grinding cylinder; a grinding assembly, wherein the grinding assembly includes a grinding ring fixedly mounted on the inner wall of the grinding cylinder, and a grinding disc rotatably mounted inside the grinding cylinder, wherein the inner top wall of the grinding cylinder is rotatably provided with a rotating tube extending to the upper surface of the grinding cylinder; and a suction assembly, wherein the suction assembly includes a suction box fixedly mounted on the side of the grinding cylinder, and a negative pressure fan embedded in the inner bottom wall of the suction box. The utility model uses the suction assembly to start the negative pressure fan after silicon carbide is ground in the grinding channel, so that the silicon carbide powder ground through the grinding channel can pass through the screen and enter the interior of the aggregate bag through the rotating tube and the suction pipe for collection, thereby achieving the purpose of sufficient collection, and there will be no repeated grinding of the ground silicon carbide powder, thereby effectively saving power resources and effectively improving the grinding efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding equipment, in particular to silicon carbide grinding equipment. Background Art

[0002] Silicon carbide is an inorganic substance with the chemical formula SiC. It is made of quartz sand, petroleum coke (or coal coke), sawdust (salt is needed to produce green silicon carbide) and other raw materials through high-temperature smelting in a resistance furnace. Grinding equipment is required in the preparation process of silicon carbide micro powder.

[0003] In the prior art, a Chinese patent with announcement number CN220677981U discloses a silicon carbide micro-powder grinding device, which adopts a scheme of "including a grinding box, a crushing box is fixedly installed on the upper surface of the grinding box, a feed port is installed on the upper surface of the crushing box, and a first drive motor is fixedly installed on one side of the crushing box". This scheme is arranged by a second drive motor, a second transmission rod, a second rotating rod and a grinding roller. When in use, the crushed silicon carbide particles fall onto the grinding roller, and then the silicon carbide particles are ground into micro-powder by the grinding roller, thereby improving the grinding efficiency. The screen plate, the discharge port, the collection box, the dry powder pneumatic diaphragm pump and the conduit are arranged in cooperation. When in use, the silicon carbide particles that have not been filtered by the screen plate fall from the discharge port into the collection box, and then the silicon carbide particles are pumped into the crushing box again through the dry powder pneumatic diaphragm pump and the conduit, thereby playing a role of grinding again and improving the efficiency of the equipment in processing silicon carbide micro-powder.

[0004] However, the above scheme still has some shortcomings. For example, when the grinding device is in the process of re-inputting larger silicon carbide particles for grinding through the dry powder pneumatic diaphragm pump, the dry powder pneumatic diaphragm pump will generate a large suction force when it is running, causing the fine silicon carbide powder that has not yet been screened by the screen plate to enter the aggregate box. Even the silicon carbide powder that has entered the collecting box will be lifted up again and pass through the screen plate in the opposite direction to enter the aggregate box for re-grinding. It repeatedly grinds the qualified powder, wastes electricity resources and reduces the grinding efficiency.

[0005] In view of this, the utility model proposes a silicon carbide grinding device. Utility Model Content

[0006] The purpose of the utility model is to provide a silicon carbide grinding device to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A silicon carbide grinding device, comprising:

[0009] Grinding cylinder;

[0010] A grinding assembly, the grinding assembly comprising a grinding ring fixedly mounted on the inner wall of a grinding cylinder, and a grinding disc rotatably mounted inside the grinding cylinder, a rotating tube rotatably mounted on the inner top wall of the grinding cylinder and extending to the upper surface of the grinding cylinder, and a driving motor for driving the rotating tube to rotate is mounted on the upper surface of the grinding cylinder;

[0011] A suction assembly, the suction assembly includes a suction box fixed to the side of the grinding cylinder, and a negative pressure fan embedded in the inner bottom wall of the suction box, a suction pipe connected to the rotating pipe is embedded in the inner top wall of the suction box, and one end of the suction pipe away from the suction box is rotatably connected to the inner wall of the rotating pipe, a cavity is formed inside the grinding disc, and a mounting hole is formed on the inner top wall of the cavity, the outer surface of the rotating pipe is fixedly connected to the inner wall of the mounting hole, and a material collecting cover is provided at the bottom end of the rotating tube, and a screen is embedded in the inner bottom wall of the cavity;

[0012] The return material component includes a dry powder membrane pump fixedly mounted on the outer surface of the grinding cylinder, and the feed end of the dry powder membrane pump is provided with a feed pipe extending to the bottom wall of the grinding cylinder, and the discharge end of the dry powder membrane pump is provided with a return material pipe extending to the top of the grinding cylinder.

[0013] As a preferred technical solution, a driving gear disc is fixedly provided at the output end of the driving motor, and a driven gear disc meshing with the driving gear disc is fixedly provided on the outer surface of the rotating tube.

[0014] As a preferred technical solution, the inner annular surface of the grinding ring and the outer annular surface of the grinding disc are provided to form a grinding channel, and the space of the grinding channel gradually decreases from top to bottom.

[0015] As a preferred technical solution, a collecting bag is fixedly provided on the outer surface of the end of the suction pipe located inside the suction box by iron wire, and a sealing door panel is hinged on the side of the suction box.

[0016] As a preferred technical solution, a conical guide ring is fixedly provided on the inner ring surface of the grinding ring below the grinding channel.

[0017] As a preferred technical solution, the lower surface of the grinding cylinder is provided with three supporting legs in a circular array, and protective pads are provided at the bottom ends of the three supporting legs, and the outer surface of the grinding cylinder is provided with a controller.

[0018] As a preferred technical solution, a rotating hole is opened on the inner top wall of the grinding cylinder, the outer surface of the rotating tube is rotatably connected to the inner wall of the rotating hole through a bearing, and a feeding tube for adding crushed silicon carbide into the grinding cylinder is embedded on the upper surface of the grinding cylinder.

[0019] Beneficial Effects

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0021] The utility model provides a grinding component and a return component so that the grinding equipment can achieve the purpose of sufficient grinding when grinding silicon carbide. At the same time, particles that are not completely ground after grinding can re-enter the inner top of the grinding cylinder through the feed pipe and the return pipe under the action of a dry powder membrane pump for re-grinding, thereby effectively improving the grinding efficiency and the adequacy of the grinding.

[0022] The utility model provides a suction component, and when the silicon carbide is ground in the grinding channel, the negative pressure fan can be started, so that the silicon carbide powder ground through the grinding channel can pass through the screen and enter the interior of the aggregate bag through the rotating tube and the suction tube for collection, thereby achieving the purpose of sufficient collection, and there will be no situation of repeated grinding of the ground silicon carbide powder, thereby effectively saving power resources and effectively improving the grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0025] Figure 2 This is a rear view structural diagram of the utility model;

[0026] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0027] Figure 4 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0028] In the figure:

[0029] 100. Grinding cylinder;

[0030] 200, grinding assembly; 201, grinding ring; 202, grinding disc; 203, rotating tube; 204, driving motor; 205, driving gear disc; 206, driven gear disc; 207, grinding channel;

[0031] 300, suction assembly; 301, suction box; 302, negative pressure fan; 303, suction pipe; 304, cavity; 305, collection cover; 306, screen; 307, collection bag; 308, sealing door; 309, conical guide ring;

[0032] 400, return material assembly; 401, dry powder membrane pump; 402, feed pipe; 403, return material pipe;

[0033] 500. Feeding tube. DETAILED DESCRIPTION

[0034] 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.

[0035] According to the attached Figures 1 to 4 As shown, an embodiment of the utility model provides a silicon carbide grinding device, including a grinding cylinder 100 , a grinding assembly 200 , a material suction assembly 300 and a material return assembly 400 .

[0036] Among them, the lower surface of the grinding cylinder 100 is provided with three supporting legs in a circular array, and the bottom ends of the three supporting legs are provided with protective pads, which improves the stability of the grinding cylinder 100. The outer surface of the grinding cylinder 100 is provided with a controller.

[0037] Among them, the grinding assembly 200 includes a grinding ring 201 fixed on the inner wall of the grinding cylinder 100, and a grinding disc 202 rotatably arranged inside the grinding cylinder 100, the inner top wall of the grinding cylinder 100 is rotatably provided with a rotating tube 203 extending to the upper surface of the grinding cylinder 100, the inner top wall of the grinding cylinder 100 is provided with a rotating hole, the outer surface of the rotating tube 203 is rotatably connected to the inner wall of the rotating hole through a bearing, and the upper surface of the grinding cylinder 100 is embedded with a feeding tube 500 for adding the crushed silicon carbide into the grinding cylinder 100, so as to facilitate the addition of the crushed silicon carbide.

[0038] The upper surface of the grinding cylinder 100 is provided with a driving motor 204 for driving the rotating tube 203 to rotate;

[0039] A driving gear disc 205 is fixedly disposed at the output end of the driving motor 204 , and a driven gear disc 206 meshing with the driving gear disc 205 is fixedly disposed on the outer surface of the rotating tube 203 , so that the rotating tube 203 can be driven to rotate slowly by the rotation deceleration of the driving motor 204 .

[0040] The inner annular surface of the grinding ring 201 and the outer annular surface of the grinding disc 202 are provided to form a grinding channel 207, and the space of the grinding channel 207 gradually decreases from top to bottom, so that the particles can be ground step by step, ensuring sufficient grinding.

[0041] The suction assembly 300 includes a suction box 301 fixed to the side of the grinding cylinder 100, and a negative pressure fan 302 embedded in the inner bottom wall of the suction box 301. A suction pipe 303 connected to the rotating tube 203 is embedded in the inner top wall of the suction box 301. One end of the suction pipe 303 away from the suction box 301 is rotatably connected to the inner wall of the rotating tube 203. A cavity 304 is provided inside the grinding disc 202, and a mounting hole is provided on the inner top wall of the cavity 304. The outer surface of the rotating tube 203 is fixedly connected to the inner wall of the mounting hole, and a material collecting cover 305 is provided at the bottom end of the rotating tube 203. A screen 306 is embedded in the inner bottom wall of the cavity 304.

[0042] A collecting bag 307 is fixedly provided on the outer surface of the end of the suction pipe 303 located inside the suction box 301 through an iron wire, and a sealing door panel 308 is hinged on the side of the suction box 301 to facilitate replacement of the collecting bag 307. The principle of collecting powder by the collecting bag 307 is consistent with that of a dust collecting bag.

[0043] The inner ring surface of the grinding ring 201 is fixed with a conical guide ring 309 below the grinding channel 207, which can achieve preliminary separation of the ground silicon carbide powder and particles under the action of the conical guide ring 309, that is, the powder can be lifted up and the particles fall vertically downward, which is convenient for suction.

[0044] In this embodiment, by setting up the suction component 300, when the silicon carbide is ground in the grinding channel 207, the negative pressure fan 302 can be started to generate negative pressure inside the suction box 301, thereby generating suction to the inside of the rotating tube 203 through the suction pipe 303, so that the silicon carbide powder ground through the grinding channel 207 can pass through the screen 306 and enter the inside of the collecting bag 307 through the rotating tube 203 and the suction pipe 303 for collection, thereby achieving the purpose of sufficient collection, and there will be no situation of repeated grinding of the ground silicon carbide powder, thereby effectively saving electricity resources and effectively improving the grinding efficiency.

[0045] Among them, the return material component 400 includes a dry powder membrane pump 401 fixed on the outer surface of the grinding cylinder 100, and the feed end of the dry powder membrane pump 401 is provided with a feed pipe 402 extending to the bottom wall of the grinding cylinder 100, and the discharge of the dry powder membrane pump 401 is provided with a return material pipe 403 extending to the top of the grinding cylinder 100.

[0046] In this embodiment, by setting the grinding component 200 and the return component 400, when the grinding equipment grinds silicon carbide, the crushed silicon carbide can be first added into the grinding cylinder 100 through the feeding pipe 500, and the driving motor 204 and the dry powder membrane pump 401 are started. The rotation of the driving motor 204 drives the active gear disc 205 to rotate, and the rotation of the active gear disc 205 drives the driven gear disc 206 and the rotating tube 203 to rotate. The rotation of the rotating tube 203 drives the grinding disc 202 to rotate. The rotation of the grinding disc 202 drives the crushed silicon carbide to be gradually ground into powder inside the grinding channel 207, thereby achieving the purpose of sufficient grinding. At the same time, the particles that are not completely ground after grinding can re-enter the inner top of the grinding cylinder 100 through the feeding pipe 402 and the return pipe 403 under the action of the dry powder membrane pump 401 for re-grinding, thereby effectively improving the grinding efficiency and the adequacy of grinding.

[0047] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A silicon carbide grinding device, characterized in that: include, A grinding cylinder (100); A grinding assembly (200), the grinding assembly (200) comprising a grinding ring (201) fixedly mounted on the inner wall of a grinding cylinder (100), and a grinding disc (202) rotatably mounted inside the grinding cylinder (100), a rotating tube (203) extending to the upper surface of the grinding cylinder (100) being rotatably mounted on the inner top wall of the grinding cylinder (100), and a driving motor (204) for driving the rotating tube (203) to rotate being mounted on the upper surface of the grinding cylinder (100); A material suction component (300), the material suction component (300) comprising a material suction box (301) fixedly mounted on the side of the grinding cylinder (100), and a negative pressure fan (302) embedded in the inner bottom wall of the material suction box (301); a material suction pipe (303) in communication with a rotating tube (203) is embedded in the inner top wall of the material suction box (301); one end of the material suction pipe (303) away from the material suction box (301) is rotatably connected to the inner wall of the rotating tube (203); a cavity (304) is provided inside the grinding disc (202), and a mounting hole is provided on the inner top wall of the cavity (304); the outer surface of the rotating tube (203) is fixedly connected to the inner wall of the mounting hole; a material collecting cover (305) is provided at the bottom end of the rotating tube (203), and a screen (306) is embedded in the inner bottom wall of the cavity (304); A return material assembly (400), the return material assembly (400) comprising a dry powder membrane pump (401) fixedly mounted on the outer surface of a grinding cylinder (100), and a feed pipe (402) extending to the inner bottom wall of the grinding cylinder (100) is arranged at the feed end of the dry powder membrane pump (401), and a return material pipe (403) extending to the inner top of the grinding cylinder (100) is arranged at the discharge end of the dry powder membrane pump (401).

2. A silicon carbide grinding device according to claim 1, characterized in that: A driving toothed disc (205) is fixedly provided at the output end of the driving motor (204), and a driven toothed disc (206) meshing with the driving toothed disc (205) is fixedly provided on the outer surface of the rotating tube (203).

3. A silicon carbide grinding device according to claim 1, characterized in that: The inner annular surface of the grinding ring (201) and the outer annular surface of the grinding disc (202) are provided to form a grinding channel (207), and the space of the grinding channel (207) gradually decreases from top to bottom.

4. The silicon carbide grinding device according to claim 1, characterized in that: A material collecting bag (307) is fixedly provided on the outer surface of the end of the suction pipe (303) located inside the suction box (301) via an iron wire, and a sealing door panel (308) is hingedly connected to the side of the suction box (301).

5. The silicon carbide grinding device according to claim 3, characterized in that: A conical guide ring (309) is fixedly provided on the inner ring surface of the grinding ring (201) below the grinding channel (207).

6. The silicon carbide grinding device according to claim 1, characterized in that: The lower surface of the grinding cylinder (100) is provided with three supporting legs in a circular array, and protective pads are provided at the bottom ends of the three supporting legs. The outer surface of the grinding cylinder (100) is provided with a controller.

7. The silicon carbide grinding device according to claim 1, characterized in that: The inner top wall of the grinding cylinder (100) is provided with a rotating hole, the outer surface of the rotating tube (203) is rotatably connected to the inner wall of the rotating hole via a bearing, and a feeding tube (500) for adding crushed silicon carbide into the grinding cylinder (100) is embedded on the upper surface of the grinding cylinder (100).

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