CN216539490U - Prevent carborundum screening plant for production and processing of leakage - Google Patents

Abstract

The utility model discloses a screening device for preventing leakage of silicon carbide production and processing, which belongs to the technical field of powder screening machinery and equipment. The device forms a closed space, which prevents the leakage of silicon carbide powder during the screening process. The device is equipped with a screen, which can be replaced with the corresponding mesh according to the diameter of the required powder. Electromagnetic pulser It ensures that the silicon carbide powder on the filter element falls into the silo, ensures that the filter element has the ventilation function all the time, makes the punching work continuous, the whole process is sealed continuously and efficiently, and solves the leakage of the existing screening device. It is mainly used in industrial production.

Description

A screening device for preventing leakage of silicon carbide production and processing

technical field

The utility model belongs to the technical field of powder screening machinery and equipment, in particular to a screening device for preventing leakage of silicon carbide production and processing.

Background technique

In the production process, most of the silicon carbide powder needs to go through a series of procedures to obtain fine-purpose particles. In the production of silicon carbide powder, a screening device is required. The screening device is to use a screen with holes to filter the mesh Silicon carbide powders of different sizes are divided into operation devices of various mesh levels. At present, the structure of silicon carbide powder screening devices is single. In order to obtain silicon carbide powders of different particle size levels, the screening plate needs to be replaced in the device, and It is not easy to replace. Due to the need to ensure its tightness during the punching process, the existing silo body is equipped with holes in the upper part of the silo body, and the surface of the hole is equipped with a filter screen for semi-closed filling. Long-term work will cause the upper part to be filled. The holes are blocked, resulting in negative pressure in the silo, which causes the silicon carbide powder to be unable to quickly punch the material into the silo for screening. Setting holes in the upper part of the silo will cause the leakage of the silicon carbide powder and pollute the production workshop. air, wasting costs and endangering the health of operators.

Application No.: 202120542471.0, discloses a multi-stage screening device for spherical graphite production. The vibration motor on the connecting column makes the screen cylinder vibrate. When the screen cylinder vibrates, the material is filtered through the three screens provided. , The material can be slag discharged and filtered by three screens. The ultrasonic transducer provided can further improve the screening effect, improve the screening quality, and prevent the material from clogging the screen. The bucket can gather the falling materials, and can make the materials fall into the center of the next screen, so as to prevent the unfiltered materials from flowing out through the slag outlet. The suction fan provided can generate negative pressure in the box, which is convenient for The material passes through the screen quickly, and at the same time, the dust generated by the vibration can be prevented from overflowing from the feed hopper, which ensures the health of the operator.

In the above patent, when the screen cylinder vibrates, the material is filtered through three screens provided. The spherical graphite material cannot guarantee that the raw material can be completely screened under the vibration of the screen screen, so that some raw materials fall into the slag discharge. The outlet flows out, resulting in waste of raw materials or secondary work, and a suction fan is installed at the bottom, and a small amount of graphite material is sucked into the suction fan, which causes damage to the machine, and the graphite material powder in the cloth bag tends to the suction fan side, resulting in unstable air pressure in the box , In view of the above problems, our company proposes a screening device for silicon carbide production and processing to prevent leakage.

Utility model content

The purpose of the present invention is to provide a screening device for silicon carbide production and processing that prevents leakage, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a screening device for preventing leakage of silicon carbide production and processing, comprising outriggers, an outer bin, a silo and a machine cover, and is characterized in that: above the outriggers There is an outer warehouse, the bottom of the outer warehouse is provided with a solenoid valve discharge port I, which is connected to the external suction bin I, and the right side of the outer bin is provided with a solenoid valve discharge port II, which is connected to the external suction bin II. A set of spring connecting seats are fixed inside the outer bin to ensure the stability of the material bin set above under vibration. The spring connecting seat is provided with a vibrator, and the upper part of the spring connecting seat is provided with There is a silo, a discharge port III is left at the bottom of the silo, the discharge port III and the solenoid valve discharge port I are connected by a soft sleeve I, and a screen mesh is arranged inside the silo to fix The screen mesh fixing frame is provided with a screen mesh, and the screen mesh and the screen mesh fixing frame are fixedly connected by a set of bolts. The right side of the silo is provided with a discharge port IV. The discharge port IV and the solenoid valve discharge port II are connected by a soft sleeve II, the upper part of the silo is provided with a rectangular iron ring, and the rectangular iron ring and the silo are fixedly connected by a soft sleeve, The rectangular iron ring is surrounded by a set of limit blocks, which will not cause adsorption and dislocation under the condition of electricity. The limit blocks are fixedly connected with the outer warehouse, and the outer warehouse is provided with organic The cover is movably connected with the outer compartment through hinges. The bottom of the cover is fixed with a rectangular coil. The rectangular coil can firmly absorb the rectangular iron ring under the condition of electrification. The right side is provided with a controller, the controller is connected with the outlet end of the rectangular coil, the cover is provided with a feed inlet and a filter element, and the upper part of the cover is fixedly provided with an air bag and a blower, The inside of the filter element filter is horizontally provided with an electromagnetic pulse valve, the electromagnetic pulse valve is communicated with the air bag through the pipeline I, the filter element filter and the blower are connected through the pipeline II, and the left end of the blower is provided with a The air supply pipe is connected with the bag filter to ensure that the silicon carbide powder does not leak into the workshop and to ensure the airtightness of the overall device.

Preferably, the number of the set of spring connecting seats is 4, which ensures the stability of the silo arranged above under vibration.

Preferably, the soft sleeve I, the soft sleeve II and the soft sleeve are made of PTFE wear-resistant soft material to ensure that the material can be discharged from the discharge port I of the solenoid valve and the solenoid valve under the vibration of the silo. Sealing connection between ports II.

Preferably, the angle between the screen fixing frame and the bottom of the silo is 35 degrees, and the silicon carbide itself has gravity to bounce on the screen to avoid clogging the mesh.

Preferably, the screen can be disassembled and replaced according to the required mesh number, and the required screen can be replaced according to the required fineness of the product.

Preferably, the material of the limit block is aluminum, which ensures that the rectangular coil can firmly absorb the rectangular iron ring under the condition of electrification, and does not cause the occurrence of adsorption dislocation.

Compared with the prior art, the beneficial effects of the present utility model are:

(1) By designing the screen, the screen with different diameter holes can be replaced according to the required fineness of the product to ensure the size of the powder particles produced by the silicon carbide particles.

(2) By designing the electromagnetic pulse valve and the filter element, according to the principle of pulse vibration, the electromagnetic pulser ensures that the silicon carbide powder attached to the filter element falls into the silo, ensuring that the filter element has the ventilation function all the time. , so that the punching work has continuity.

(3) By designing the rectangular coil and the rectangular iron ring, the rectangular coil can firmly absorb the rectangular iron ring under the condition of electrification to make the whole device airtight, preventing the leakage of silicon carbide powder.

Description of drawings

Fig. 1 is the internal structure diagram of the utility model;

Fig. 2 is the partial enlarged view of the A place of Fig. 1 of the utility model;

Fig. 3 is the partial enlarged view of the B place of Fig. 1 of the utility model;

4 is a structural diagram of the utility model in an open state;

FIG. 5 is a front view of the utility model.

In the figure: 1. Outrigger; 2. Outer warehouse; 3. Solenoid valve outlet I; 4. Solenoid valve outlet II; 5. Spring connection seat; 6. Vibrator; 7. Silo; 8. Outlet Material port III; 9. Soft casing I; 10. Screen fixing frame; 11. Screen; 12. Bolt; 13. Discharge port IV; 14. Soft casing II; 15. Rectangular iron ring; 16. Soft Set; 17. Limit block; 18. Cover; 19. Hinges; 20. Rectangular coil; 21. Controller; 22. Feed inlet; 23. Filter element; 24. Air bag; 25. Blower; 26. Electromagnetic pulse valve; 27. Pipeline I; 28. Pipeline II; 29. Air supply pipe.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example 1

Please refer to FIG. 1-FIG. 5. The present utility model provides a technical solution: a screening device for silicon carbide production and processing to prevent leakage, comprising outriggers 1, an outer bin 2, a silo 7 and a machine cover 18. It is: an outer warehouse 2 is arranged above the outrigger 1, a solenoid valve outlet I3 is arranged at the bottom of the outer warehouse 2, a solenoid valve outlet II4 is arranged on the right side of the outer warehouse 2, and the outer warehouse 2 is provided with a solenoid valve outlet II4. The outer compartment 2 is fixedly provided with a group of spring connection seats 5, the number of the group of spring connection seats 5 is 4, the spring connection seat 5 is provided with a vibrator 6, and the upper part of the spring connection seat 5 A silo 7 is provided, and a discharge port III8 is left at the bottom of the silo 7. The discharge port III8 and the solenoid valve discharge port I3 are connected by a soft sleeve I9, and the interior of the silo 7 is A screen mesh holder 10 is provided, the screen mesh holder 10 is provided with a screen mesh 11, and the angle between the screen mesh holder 10 and the bottom of the silo 7 is 35 degrees, and the screen mesh 11 and the screen fixing frame 10 are fixedly connected by a set of bolts 12. The screen 11 can be disassembled and replaced according to the required mesh number. The right side of the silo 7 is provided with a discharge port IV13. The discharge port IV13 of the solenoid valve is connected with the discharge port II4 of the solenoid valve through a soft sleeve II14, the upper part of the silo 7 is provided with a rectangular iron ring 15, and the rectangular iron ring 15 and the silo 7 are connected by a soft sleeve The sleeve 16 is fixedly connected, the soft sleeve I9, the soft sleeve II 14 and the soft sleeve 16 are made of Teflon wear-resistant soft material, the rectangular iron ring 15 is surrounded by a set of limit blocks 17, The limiting block 17 is fixedly connected with the outer warehouse 2, the material of the limiting block 17 is aluminum, the outer warehouse 2 is provided with an organic cover 18, and the cover 18 is connected to the outer warehouse 2. 2 are movably connected by a hinge 19, the bottom of the cover 18 is fixedly provided with a rectangular coil 20, the right side of the cover 18 is provided with a controller 21, and the controller 21 is connected to the outlet end of the rectangular coil 20. connection, the cover 18 is provided with a feed port 22 and a filter element filter 23, the upper part of the cover 18 is fixedly provided with an air bag 24 and a blower 25, and the inside of the filter element filter 23 is horizontally provided with electromagnetic Pulse valve 26, the electromagnetic pulse valve 26 communicates with the air bag 24 through pipeline I27, the filter element 23 and the blower 25 communicate through pipeline II28, and the left end of the blower 25 is provided with an air supply pipe 29.

The working principle and use process of the utility model: when the cover 18 is closed, the controller 21 electrifies the rectangular coil 20, the rectangular coil 20 absorbs the rectangular iron ring 15 to make the whole device form a closed state, and the silicon carbide powder enters the outside The powder silo rushes into the silo 7 through the feeding port 22, the blower 25 is turned on, and the electromagnetic pulse valve 26 makes the air bag 24 pulse and vibrate the filter element filter 23, so that the filter element filter 23 has the ability to ventilate all the time, ensuring the silicon carbide For the continuity of powder punching, a vibrator 6 is arranged on the spring connection seat 5. The vibrator 6 makes the silo 7 vibrate as a whole, the inner screen 11 vibrates and sieves the silicon carbide powder, and the solenoid valve at the bottom of the outer silo 2 is opened to discharge the material. Port I3 is connected to the external suction bin I to obtain silicon carbide powder of the corresponding mesh number. After the screening is completed, open the solenoid valve discharge port II4 on the right side of the external bin 2 and connect it to the external suction bin II. The suction bin II does the suction work for the silicon carbide powder of the previous mesh on the screen 11. If you want to obtain silicon carbide powder with different meshes, you only need to open the cover 18, and unscrew the bolt 12 to remove the screen. 11. It can be replaced. The entire SiC powder screening process is continuous and efficient, and the sealing effect of the entire device is excellent and worthy of promotion and use.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A screening device for silicon carbide production and processing for preventing leakage, comprising outriggers (1), outer bins (2), silos (7) and machine covers (18), characterized in that: the outriggers (1) An outer warehouse (2) is arranged above, the bottom of the outer warehouse (2) is provided with a solenoid valve discharge port I (3), and the right side of the outer warehouse (2) is provided with a solenoid valve discharge port II (4), a set of spring connecting seats (5) are fixedly arranged inside the outer warehouse (2), and a vibrator (6) is arranged on the spring connecting seat (5), and the spring connecting seat ( 5) A silo (7) is arranged on the upper part, and a discharge port III (8) is left at the bottom of the silo (7), and the discharge port III (8) is connected with the solenoid valve discharge port I (3). The silo (7) is provided with a screen mesh fixing frame (10) inside, and the screen mesh fixing frame (10) is provided with a screen mesh (11), so The screen mesh (11) and the screen mesh fixing frame (10) are fixedly connected by a set of bolts (12). The discharge port IV (13) and the solenoid valve discharge port II (4) are connected by a soft sleeve II (14). The upper part of the silo (7) is provided with a rectangular iron ring (15). The rectangular iron ring (15) and the silo (7) are fixedly connected by a soft sleeve (16), the rectangular iron ring (15) is surrounded by a set of limit blocks (17), and the limit blocks ( 17) Fixed connection with the outer warehouse (2), the outer warehouse (2) is provided with an organic cover (18), and a hinge (19) is used between the machine cover (18) and the outer warehouse (2) Actively connected, the bottom of the cover (18) is fixedly provided with a rectangular coil (20), the right side of the cover (18) is provided with a controller (21), and the controller (21) is connected to the rectangular coil (20) The outlet ends are connected, the cover (18) is provided with a feed port (22) and a filter element (23), and an air bag (24) is fixed on the upper part of the cover (18). and the blower (25), the inside of the filter element filter (23) is laterally provided with an electromagnetic pulse valve (26), and the electromagnetic pulse valve (26) is communicated with the air bag (24) through the pipeline I (27), so The filter element filter (23) and the blower (25) are communicated through a pipeline II (28), and an air supply pipe (29) is provided at the left end of the blower (25). 2 . The leakage-preventing screening device for silicon carbide production and processing according to claim 1 , wherein the number of the group of spring connecting seats ( 5 ) is 4. 3 . 3. The screening device for silicon carbide production and processing that prevents leakage according to claim 1, characterized in that: the soft sleeve I (9), the soft sleeve II (14) and the soft sleeve (16) ) is made of PTFE wear-resistant soft material. 4. A screening device for silicon carbide production and processing that prevents leakage according to claim 1, wherein the angle between the screen fixing frame (10) and the bottom of the silo (7) is as follows: 35 degrees. 5 . The leakage-preventing screening device for silicon carbide production and processing according to claim 1 , wherein the screen ( 11 ) can be disassembled and replaced according to the required mesh number. 6 . 6 . The leakage-preventing screening device for silicon carbide production and processing according to claim 1 , wherein the material of the limiting block ( 17 ) is aluminum. 7 .

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