Silicon carbide powder screening device

Abstract

The utility model discloses a silicon carbide powder screening device, and relates to the technical field of screening devices, the silicon carbide powder screening device comprises a lower screening box and an upper screening box, the upper screening box is fixedly arranged on the upper surface of the lower screening box, and the left side of the upper end face of the upper screening box is fixedly provided with a feeding hopper; a conical material receiving pipe is fixedly mounted at the bottom end of the inner wall of the lower screening box; a screening cavity is formed in the top end of the inner wall of the lower screening box. A screening plate is slidably arranged in the screening cavity. A driving assembly used for driving the screening plate to conduct screening is arranged on the left side in the screening cavity. An impurity discharging opening is formed in the position, corresponding to the screening plate, of the right surface of the lower screening box. A cleaning assembly is arranged on the left surface of the lower screening box, a movable water spraying plate, a reciprocating lead screw, a limiting rod and a pressurizing water pump are arranged, the movable water spraying plate circularly cleans the screening plate in the screening cavity in a reciprocating mode, a plurality of nozzles on the movable water spraying plate are utilized, the cleaning precision is high, and the cleaning effect and efficiency of the device are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to screening device technical field, especially in a kind of silicon carbide powder screening device. BACKGROUND

[0002] Before silicon carbide powder material is used, it needs to use screening device to screen out impurity in silicon carbide powder material, to improve the purity of silicon carbide powder material.

[0003] In the screening device of a kind of silicon carbide powder material disclosed in Chinese patent CN219766004U, the top of the screen pipe is hinged with cover plate, the bottom of the screen pipe is fixedly connected with the hopper, the top corner of the hopper bottom is fixedly connected with the support, the first end of the screen pipe is fixedly connected with the cleaning assembly, the cleaning assembly is used for the cleaning inside the screen pipe, the first side of the screen pipe is fixedly connected with the screening assembly, the screening assembly is used for the screening of silicon carbide powder material, the second side of the top of the screening assembly is provided with the impurity discharge port. By connecting the external water pipe with the water connection pipe, then starting the pump to draw the external water source into the water inlet pipe through the water connection pipe, and then into the water supply pipe, finally through the spray head to complete the automatic cleaning of the inside of the screen pipe, without manual disassembly and cleaning, more manpower saving.

[0004] And the above-mentioned device has the following problems when using: the above-mentioned device is cleaned by the spray head around the screen pipe, and since the spray angle of the spray head is fixed, only the screen plate within the range of the spray head can be washed; the distance between the spray head and the screen plate is far, so that the cleaning precision is low, and the cleaning effect of the above-mentioned device is poor, and the cleaning efficiency is low.

[0005] To solve the above problems, the utility model provides a kind of silicon carbide powder screening device. UTILITY MODEL CONTENTS

[0006] The utility model provides the following technical scheme: a kind of silicon carbide powder screening device, including lower screening box and upper screening box, upper screening box is fixedly arranged on the upper surface of lower screening box, and the upper end face left side of upper screening box is fixedly installed with feed hopper;The inner wall bottom end of lower screening box is fixedly installed with conical material collecting pipe;Screening cavity is opened in the inner wall top end of lower screening box;Screening plate is slidably arranged in the inside of screening cavity;The inside left side of screening cavity is provided with drive assembly for driving screening plate screen;Impurity discharge port is opened on the position of the right surface of lower screening box corresponding to screening plate;Cleaning assembly is provided on the left surface of lower screening box;

[0007] Cleaning assembly includes water storage bucket;Water storage bucket is fixedly installed on the left surface bottom end of lower screening box;The upper surface of water storage bucket is fixedly installed with pressurized water pump;The output end of pressurized water pump is fixedly connected with PVC hose;The end of PVC hose away from pressurized water pump is fixedly connected with aluminium pipe;

[0008] The inside of the screening cavity is provided with a moving water spraying plate corresponding to the upper position of the screening plate; the aluminum pipe is connected with the moving water spraying plate; the aluminum pipe is slidingly connected with the lower screening box; and the inside of the screening cavity is provided with a moving assembly for driving the moving water spraying plate to move.

[0009] Preferably, the lower screening box and the upper screening box are both fixedly installed with mounting plates on the two sides; bolt holes are formed in the mounting plates; and the lower screening box and the upper screening box are bolted through the bolt holes on the two mounting plates.

[0010] Preferably, the feeding funnel is in communication with the inside of the upper screening box; and the discharge opening of the feeding funnel corresponds to the upper surface of the screening plate.

[0011] Preferably, the inside of the screening cavity is provided with a sliding groove on the front and rear sides of the inner wall; the screening plate is slidingly installed in the sliding groove; and springs are fixedly installed at the four corners of the bottom surface of the inside of the screening cavity; and the top ends of the springs are fixedly connected with the bottom surface of the screening plate.

[0012] Preferably, the driving assembly comprises a second motor; the second motor is fixedly installed on the left side of the inside of the screening cavity; a first connecting plate is fixedly installed on the output shaft of the second motor; a second connecting plate is rotatably connected to the other end of the first connecting plate; a fixed rod is rotatably installed on the end of the second connecting plate away from the first connecting plate; and the fixed rod is fixedly installed on the bottom surface of the screening plate.

[0013] Preferably, a baffle is fixedly installed on the left side of the upper surface of the screening plate; and the right end of the screening plate extends into the inside of the lower screening box through the impurity discharging opening.

[0014] Preferably, the moving water spraying plate comprises a water spraying plate and moving plates fixedly installed on the two sides of the water spraying plate; and a plurality of spray heads are fixedly installed on the bottom end of the water spraying plate.

[0015] Preferably, the moving assembly comprises a reciprocating screw rod; the reciprocating screw rod is rotatably installed on the rear side of the inside of the screening cavity; the reciprocating screw rod is threadedly connected with the moving plate on the rear side of the moving water spraying plate; a limiting rod is fixedly installed on the front side of the inside of the screening cavity; the limiting rod is slidingly connected with the moving plate on the front side of the moving water spraying plate; a first motor is fixedly installed on the left surface of the lower screening box and corresponds to the position of the reciprocating screw rod; and the output shaft of the first motor rotatably penetrates through the inside of the lower screening box and is fixedly connected with the reciprocating screw rod.

[0016] Beneficial effects

[0017] Compared with the prior art, the present application has the beneficial effects that:

[0018] (1), the silicon carbide powder screening device, through the setting moves the water spray board, reciprocating wire bar, limit rod and pressurized water pump, makes the mobile water spray board reciprocating cycle cleaning to the screening board inside the screening cavity, and utilizes a plurality of spray heads on the mobile water spray board, makes the cleaning precision high, improves the cleaning effect and efficiency of the device.

[0019] (2), the silicon carbide powder screening device, by setting spring at the four corners of the bottom surface of the screening board, the screening board is more stable in the moving process, improves the stability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model is further explained below in combination with the drawings and embodiments:

[0021] Figure 1 It is whole structure schematic view of the utility model;

[0022] Figure 2 It is internal section view schematic view of the utility model;

[0023] Figure 3 It is the utility model Figure 2 A enlarged schematic view of the utility model;

[0024] Figure 4 It is limit rod position schematic view of the utility model.

[0025] Reference signs: 1, lower screening box;2, upper screening box;3, feed hopper;4, conical material collecting pipe;5, screening cavity;6, screening board;7, impurity discharge port;8, water storage bucket;9, pressurized water pump;10, PVC hose;11, aluminum pipe;12, mobile water spray board;13, spray head;14, reciprocating wire bar;15, limit rod;16, first motor;17, mounting plate;18, spring;19, second motor;20, first connecting plate;21, second connecting plate;22, fixed rod. DETAILED DESCRIPTION

[0026] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0027] Please refer to Figures 1-4 The utility model provides a technical scheme: a silicon carbide powder screening device, including lower screening box 1 and upper screening box 2, upper screening box 2 is fixedly arranged on the upper surface of lower screening box 1.

[0028] Specifically, the lower screening box 1 and the upper screening box 2 are fixedly installed with mounting plates 17 on both sides; bolt holes are formed in the mounting plates 17; and the lower screening box 1 and the upper screening box 2 are bolt-connected through the bolt holes on the mounting plates 17.

[0029] The upper end face left side of the upper screening box 2 is fixedly installed with a feeding hopper 3. The inner wall bottom end of the lower screening box 1 is fixedly installed with a conical material collecting pipe 4. The inner wall top end of the lower screening box 1 is formed with a screening cavity 5; and the screening cavity 5 is slidably provided with a screening plate 6.

[0030] The feeding hopper 3 is in communication with the interior of the upper screening box 2; and the lower discharge port of the feeding hopper 3 corresponds to the upper surface left side of the screening plate 6.

[0031] The interior left side of the screening cavity 5 is provided with a driving assembly for driving the screening plate 6 to screen; and the right surface of the lower screening box 1 is formed with a foreign matter discharging port 7 corresponding to the position of the screening plate 6.

[0032] The upper surface left side of the screening plate 6 is fixedly installed with a baffle plate to prevent the material from falling from the left side of the screening plate 6; and the right end of the screening plate 6 extends out of the interior of the lower screening box 1 through the foreign matter discharging port 7, so as to facilitate the foreign matter to be directly discharged out of the interior of the lower screening box 1.

[0033] Specifically, the inner wall front and back sides of the screening cavity 5 are formed with sliding grooves; the sliding grooves are obliquely arranged; the screening plate 6 is slidably installed in the sliding grooves; so that the screening plate 6 is obliquely arranged in the screening cavity 5; and then the foreign matter is facilitated to be discharged through the foreign matter discharging port 7. The interior bottom face four corners of the screening cavity 5 are fixedly installed with springs 18; the top ends of the springs 18 are fixedly connected with the bottom face of the screening plate 6; and the springs 18 are arranged to make the screening plate 6 more stable during movement.

[0034] The driving assembly comprises a second motor 19; the second motor 19 is fixedly installed on the interior left side of the screening cavity 5; since the screening plate 6 is obliquely arranged; in order to ensure stable transmission; the second motor 19 is also obliquely arranged; and the oblique angle is consistent with that of the screening plate 6; a first connecting plate 20 is fixedly installed on the output shaft of the second motor 19; a second connecting plate 21 is rotatably connected to the other end of the first connecting plate 20; a fixed rod 22 is rotatably installed on the end of the second connecting plate 21 away from the first connecting plate 20; and the fixed rod 22 is fixedly installed on the bottom face of the screening plate 6.

[0035] The left surface of the lower screening box 1 is provided with a cleaning assembly.

[0036] The cleaning assembly includes a water storage tank 8; the water storage tank 8 is fixedly installed at the bottom left side of the lower screening box 1; a pressurized water pump 9 is fixedly installed on the upper surface of the water storage tank 8, and a PVC hose 10 is fixedly connected to the output end of the pressurized water pump 9. An aluminum pipe 11 is fixedly connected to the end of the PVC hose 10 away from the pressurized water pump 9; by setting the PVC hose 10, the reciprocating movement of the aluminum pipe 11 is not affected.

[0037] The screening chamber 5 is equipped with a movable water spray plate 12 located above the screening plate 6; the aluminum tube 11 is connected to the movable water spray plate 12; the aluminum tube 11 is slidably connected to the lower screening box 1; and the screening chamber 5 is equipped with a movable component for driving the movable water spray plate 12 to move.

[0038] Specifically, the movable water spray plate 12 includes a water spray plate and a movable plate fixedly installed on both sides of the water spray plate; a plurality of nozzles 13 are evenly fixedly installed at the bottom end of the water spray plate; the nozzles 13 correspond to the sieve holes on the sieve plate 6.

[0039] The moving assembly includes a reciprocating screw 14; the reciprocating screw 14 is rotatably mounted inside the rear side of the screening chamber 5; the reciprocating screw 14 is threadedly connected to the moving plate behind the moving spray plate 12; a limiting rod 15 is fixedly mounted inside the front side of the screening chamber 5; the limiting rod 15 is slidably connected to the moving plate in front of the moving spray plate 12; a first motor 16 is fixedly mounted on the left surface of the lower screening box 1 at a position corresponding to the reciprocating screw 14; the output shaft of the first motor 16 rotates through the interior of the lower screening box 1 and is fixedly connected to the reciprocating screw 14. The forward and reverse rotation of the first motor 16 drives the moving spray plate 12 to move reciprocally.

[0040] Working principle:

[0041] In use, silicon carbide powder is poured into the upper screening box 2 through the feed funnel 3, causing the silicon carbide powder to fall onto the screening plate 6. The second motor 19 is started, and the output shaft of the second motor 19 rotates, driving the first connecting plate 20 to rotate. The rotation of the first connecting plate 20 drives the second connecting plate 21 to rotate, and the rotation of the second connecting plate 21 drives the fixed rod 22 to move back and forth. This causes the screening plate 6 to move back and forth to perform screening work, and impurities are filtered onto the upper surface of the screening plate 6. By utilizing the inclination of the screening plate 6, the impurities are gradually discharged through the discharge port 7. The filtered silicon carbide powder is discharged through the conical receiving pipe 4, and a receiving bucket is placed below the conical receiving pipe 4 to collect the silicon carbide powder.

[0042] After the silicon carbide powder is screened, the sieve plate 6 needs to be cleaned. The first motor 16 and the pressurized water pump 9 are started. The output shaft of the first motor 16 rotates, which drives the reciprocating screw 14 to rotate. The rotation of the reciprocating screw 14 drives the moving spray plate 12 to move back and forth. At the same time, the pressurized water pump 9 starts to draw water out of the water storage tank 8 and pressurize it, and deliver it to the moving spray plate 12 through the PVC hose 10 and aluminum pipe 11. The water is discharged from the multiple nozzles 13 at the bottom of the moving spray plate 12. The nozzles 13 correspond to the screen holes on the sieve plate 6, thereby achieving precise cleaning. This makes the cleaning of the sieve plate 6 more comprehensive and thorough, and improves the cleaning effect of the device.

[0043] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A silicon carbide powder screening device, comprising a lower screening box (1) and an upper screening box (2), wherein the upper screening box (2) is fixedly disposed on the upper surface of the lower screening box (1), and a feed funnel (3) is fixedly installed on the left side of the upper end face of the upper screening box (2); a conical receiving pipe (4) is fixedly installed on the bottom end of the inner wall of the lower screening box (1); characterized in that: The lower screening box (1) has a screening cavity (5) at the top of its inner wall; a screening plate (6) is slidably arranged inside the screening cavity (5); a driving component for driving the screening plate (6) to screen is arranged on the left side of the screening cavity (5); a discharge port (7) is opened on the right surface of the lower screening box (1) at the position corresponding to the screening plate (6); a cleaning component is arranged on the left surface of the lower screening box (1). The cleaning assembly includes a water storage tank (8); the water storage tank (8) is fixedly installed at the bottom left side of the lower screening box (1); a pressure pump (9) is fixedly installed on the upper surface of the water storage tank (8); a PVC hose (10) is fixedly connected to the output end of the pressure pump (9); an aluminum pipe (11) is fixedly connected to the end of the PVC hose (10) away from the pressure pump (9). Among them, a movable water spray plate (12) is provided inside the screening chamber (5) above the screening plate (6); the aluminum tube (11) is connected to the movable water spray plate (12); the aluminum tube (11) is slidably connected to the lower screening box (1); a movable component for driving the movable water spray plate (12) to move is provided inside the screening chamber (5).

2. The silicon carbide powder screening device according to claim 1, characterized in that: Mounting plates (17) are fixedly installed on both sides of the lower screening box (1) and the upper screening box (2); bolt holes are provided on the mounting plates (17); the lower screening box (1) and the upper screening box (2) are bolted together through the bolt holes on the mounting plates (17) on both sides.

3. The silicon carbide powder screening device according to claim 1, characterized in that: The feed hopper (3) is connected to the interior of the upper screening box (2); the discharge port of the feed hopper (3) corresponds to the left side of the upper surface of the screening plate (6).

4. The silicon carbide powder screening device according to claim 1, characterized in that: The inner wall of the screening chamber (5) is provided with sliding grooves on both the front and rear sides; the screening plate (6) is slidably installed inside the sliding groove; springs (18) are fixedly installed at the four corners of the inner bottom surface of the screening chamber (5); the top of the springs (18) is fixedly connected to the bottom surface of the screening plate (6).

5. The silicon carbide powder screening device according to claim 1, characterized in that: The drive assembly includes a second motor (19); the second motor (19) is fixedly installed inside the left side of the screening chamber (5); a first connecting plate (20) is fixedly installed on the output shaft of the second motor (19); a second connecting plate (21) is rotatably connected to the other end of the first connecting plate (20); a fixing rod (22) is rotatably installed on the end of the second connecting plate (21) away from the first connecting plate (20); the fixing rod (22) is fixedly connected to the screening plate (6).

6. The silicon carbide powder screening device according to claim 1, characterized in that: A baffle is fixedly installed on the left side of the upper surface of the screening plate (6); the right end of the screening plate (6) extends out of the interior of the lower screening box (1) through the discharge port (7).

7. The silicon carbide powder screening device according to claim 1, characterized in that: The movable water spray plate (12) includes a water spray plate and a movable plate fixedly installed on both sides of the water spray plate; a plurality of nozzles (13) are evenly fixedly installed at the bottom end of the water spray plate.

8. The silicon carbide powder screening device according to claim 1, characterized in that: The moving component includes a reciprocating screw (14); the reciprocating screw (14) is rotatably installed inside the rear side of the screening chamber (5); the reciprocating screw (14) is threadedly connected to the moving plate behind the moving spray plate (12); a limiting rod (15) is fixedly installed inside the front side of the screening chamber (5); the limiting rod (15) is slidably connected to the moving plate in front of the moving spray plate (12); a first motor (16) is fixedly installed on the left surface of the lower screening box (1) at the position corresponding to the reciprocating screw (14); the output shaft of the first motor (16) rotates through the interior of the lower screening box (1) and is fixedly connected to the reciprocating screw (14).

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