Dust removal device for silicon carbide product production
By designing a dust removal device for the production of silicon carbide products, and using interlaced baffle and pulse valve technology, the problem of dust pollution in silicon carbide production is solved, effective dust recovery and dust removal is achieved, and production safety and convenience are improved .
Patent Information
- Application Number
- CN202421117841.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-22
AI Technical Summary
The dust generated during the silicon carbide production poses a threat to the environment and staff health, and it is difficult for the existing technology to effectively remove and recover dust.
A dust removal device for the production of silicon carbide products is designed, including a first and second baffle arranged in an interlaced manner, a cleaning assembly and a pulse valve. By blocking dust and using high-pressure air flow to attach dust, it realizes effective dust recovery. and dust removal.
Effectively block large particles of dust and recover small particles of dust, keep the dust removal bag clean and transparent, ensure the discharge of clean air, and regularly discharge dust through the ash bucket, improving production safety and convenience.
Smart Images
Figure CN222324693U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of silicon carbide product production, and in particular to a dust removal device for silicon carbide product production. Background Art
[0002] Silicon carbide is an inorganic substance that is made by smelting 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. Silicon carbide is a semiconductor that exists in nature in the form of the extremely rare mineral moissanite. Since 1893, it has been mass-produced as powder and crystals for use as abrasives, etc.
[0003] High-purity silicon powder and high-purity carbon powder are mixed in a certain ratio, reacted at a high temperature above 2000℃ to synthesize silicon carbide particles, and then through crushing, cleaning and other processes, high-purity silicon carbide micro-powder raw materials that meet the requirements of crystal growth can be obtained. Dust will be generated in the silicon carbide production process, and these dusts contain silicon carbide particles. If the dust is discharged directly, it will not only pollute the environment, but also harm the health of the workers. Utility Model Content
[0004] In order to process dust during silicon carbide production, the present application provides a dust removal device for silicon carbide product production.
[0005] The dust removal device for silicon carbide product production provided in this application adopts the following technical solution:
[0006] A dust removal device for producing silicon carbide products, comprising:
[0007] A dust removal box having a dust chamber and a clean chamber interconnected with each other;
[0008] The dust bag is fixed in the dust removal box and is used to separate the dust room and the clean room;
[0009] An air inlet pipe is fixed on the dust removal box and communicated with the dust chamber;
[0010] The air outlet pipe is fixed on the dust removal box and communicated with the clean room;
[0011] A recovery mechanism, for recovering dust, comprising a first baffle and a second baffle hinged on the air inlet pipe, a first cleaning assembly for cleaning dust on the first baffle and the second baffle, and a second cleaning assembly for cleaning dust on a dust removal bag;
[0012] Wherein, the first baffle and the second baffle are arranged alternately.
[0013] By adopting the above technical solution, the first baffle and the second baffle can block the dust, so that large dust particles adhere to the first baffle and the second baffle or settle on the air inlet pipe. Small dust particles are blocked by the dust bag, so that clean air enters the clean room and is discharged from the air outlet pipe. The first cleaning component and the second cleaning component can clean and recycle the dust on the first baffle, the second baffle and the dust bag.
[0014] Optionally, the first cleaning assembly includes a scraper hinged on the air inlet pipe, a first operating rod fixed on the first baffle, a second operating rod fixed on the second baffle, a first elastic member for pushing the free end of the scraper against the hinged end of the first baffle, and a second elastic member for pushing the free end of the first baffle against the hinged end of the second baffle;
[0015] When the first baffle rotates toward the direction approaching the scraper, the free end of the scraper moves from the hinged end of the first baffle to the free end of the first baffle, and when the second baffle rotates toward the direction approaching the first baffle, the free end of the first baffle moves from the hinged end of the second baffle to the free end of the second baffle.
[0016] By adopting the above technical solution, the first baffle is rotated toward the direction close to the scraper, so that the scraper can scrape off the dust attached to the first baffle. The first baffle is rotated to the second baffle through the second elastic member, and the second baffle is rotated toward the direction close to the first baffle, so that the first baffle can scrape off the dust attached to the second baffle.
[0017] Optionally, the first elastic member is a spring sheet, and two ends of the spring sheet are respectively fixed to the air inlet pipe and the scraper.
[0018] By adopting the above technical solution, the spring sheet can push the free end of the scraper plate to abut against the hinged end of the first baffle plate.
[0019] Optionally, the second elastic member is a spring, and two ends of the spring are detachably connected to the air intake pipe and the first operating rod respectively.
[0020] By adopting the above technical solution, the spring can push the free end of the first baffle to abut against the hinged end of the second baffle. When the second baffle does not need to be cleaned, the spring can be removed to ensure that the first baffle does not rotate.
[0021] Optionally, a first limit block is fixedly provided on the air inlet pipe, and when the first operating rod abuts against the first limit block, the free end of the scraper abuts against the free end of the first baffle.
[0022] By adopting the above technical solution, when the first operating rod abuts against the first limiting block, the free end of the scraper just abuts against the free end of the first baffle, thereby limiting the rotation angle of the first baffle.
[0023] Optionally, a second limit block is fixedly provided on the air intake pipe, and when the second operating rod abuts against the second limit block, the free end of the first baffle abuts against the free end of the second baffle.
[0024] By adopting the above technical solution, when the second operating rod abuts against the second limit block, the free end of the first baffle abuts against the free end of the second baffle, thereby limiting the rotation angle of the second baffle.
[0025] Optionally, the second cleaning component includes an air tank fixed on the dust removal box, a pulse valve connected to the air tank, and a blow pipe connected to the pulse valve; the air outlet of the blow pipe faces the dust removal bag.
[0026] By adopting the above technical solution, when the pulse valve is opened, the high-pressure gas in the gas tank will be instantly ejected through the blow pipe. The impact of the high-pressure airflow can effectively shake off the dust attached to the dust bag, thereby keeping the dust bag clean and transparent, and realizing the recovery of dust.
[0027] Optionally, the bottom of the dust removal box is connected to an ash hopper, and the ash hopper is provided with an ash discharge valve.
[0028] By adopting the above technical solution, the ash hopper enables the recovered dust to be stored centrally, and the dust can be discharged regularly through the ash discharge valve arranged on the ash hopper.
[0029] In summary, the present application includes at least one of the following beneficial technical effects:
[0030] 1. The first baffle and the second baffle can block the dust, so that large dust particles adhere to the first baffle and the second baffle or settle on the air inlet pipe. Small dust particles are blocked by the dust bag, so that clean air enters the clean room and is discharged from the air outlet pipe. The first cleaning component and the second cleaning component can clean and recycle the dust on the first baffle, the second baffle and the dust bag.
[0031] 2. When the pulse valve is opened, the high-pressure gas in the gas tank will be instantly ejected through the blow pipe. The impact of the high-pressure airflow can effectively shake off the dust attached to the dust bag, thereby keeping the dust bag clean and transparent, and also realizing the recovery of dust. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.
[0033] Figure 2 It is a cross-sectional view of an embodiment of the present application.
[0034] Figure 3 yes Figure 2A partial enlarged schematic diagram of part A.
[0035] Figure numerals: 1. dust removal box; 2. dust removal bag; 3. air inlet pipe; 4. air outlet pipe; 51. first baffle; 511. first operating lever; 52. second baffle; 521. second operating lever; 53. scraper; 54. spring; 55. spring; 56. gas tank; 57. pulse valve; 58. blowing pipe; 61. first limit block; 62. second limit block; 71. ash hopper; 72. ash unloading valve. DETAILED DESCRIPTION
[0036] The technical solution in this application is further described in detail below in conjunction with the accompanying drawings.
[0037] The present application discloses a dust removal device for producing silicon carbide products. Figure 1 and Figure 2 A dust removal device for producing silicon carbide products includes a dust removal box 1, a dust removal bag 2, an air inlet pipe 3, an air outlet pipe 4 and a recovery mechanism for recovering dust.
[0038] Please refer to Figure 1 and Figure 2 The dust box 1 has a dust chamber and a clean chamber that are interconnected, which are used to contain and separate the dust generated during the production of silicon carbide products. The dust bag 2 is fixed in the dust box 1 to separate the dust chamber and the clean chamber. The dust bag 2 extends from the clean chamber into the dust chamber, so that the dust is blocked on the outside of the dust bag 2, and the clean gas enters the clean chamber through the dust bag 2. The air inlet pipe 3 is fixed on the dust box 1 and connected to the dust chamber, and is used to introduce the gas containing dust into the dust chamber of the dust box 1. The air outlet pipe 4 is also fixed on the dust box 1 and connected to the clean chamber, and is used to discharge the clean gas after dust removal from the dust box 1. The bottom of the dust box 1 is fixedly connected to an ash hopper 71, which is conical, and an ash discharge valve 72 is fixedly provided on the ash hopper 71. The ash hopper 71 allows the recovered dust to be stored centrally and discharged regularly through the ash discharge valve 72 provided on the ash hopper 71, which not only simplifies the dust recovery process but also improves the convenience and safety of the entire dust removal device.
[0039] For details, please refer to Figure 2The recovery mechanism includes a first baffle 51 and a second baffle 52 hinged on the air inlet pipe 3, a first cleaning assembly for cleaning the dust attached to the first baffle 51 and the second baffle 52, and a second cleaning assembly for cleaning the dust attached to the dust bag 2. The air inlet pipe 3 is a square tube, and the air inlet pipe 3 is tilted so that the air inlet end of the air inlet pipe 3 is higher than the air outlet end, which facilitates the dust to fall into the ash hopper 71. The first baffle 51 and the second baffle 52 are arranged alternately, the hinge axis of the first baffle 51 is located at the top of the air inlet pipe 3, and the hinge axis of the second baffle 52 is located below the hinge axis of the first baffle 51, so that a curved space for gas to pass is formed between the first baffle 51 and the second baffle 52, which can better block the dust contained in the gas, so that the dust is attached to the first baffle 51 and the second baffle 52 or settles on the bottom wall of the air inlet pipe 3, reducing the filtering burden of the dust bag 2.
[0040] For details, please refer to Figure 2 and Figure 3 The first cleaning assembly includes a scraper 53 hinged on the air inlet pipe 3, a first operating rod 511 fixed on the hinge shaft of the first baffle 51, a second operating rod 521 fixed on the hinge shaft of the second baffle 52, a first elastic member and a second elastic member. In order to ensure close contact between the scraper 53 and the first baffle 51, thereby improving the scraping effect, the first elastic member is configured to push the free end of the scraper 53 against the hinge end of the first baffle 51. Similarly, the second elastic member is configured to push the free end of the first baffle 51 against the hinge end of the second baffle 52. The first operating rod 511 and the second operating rod 521 are both located outside the air inlet pipe 3, so as to facilitate the operation and control of the staff. The first baffle 51 and the second baffle 52 are made of wear-resistant materials, and the surface is coated with an anti-stick coating to reduce the adhesion of dust and improve the dust recovery effect.
[0041] When the first baffle 51 rotates toward the direction close to the scraper 53, the free end of the scraper 53 moves from the hinged end of the first baffle 51 to the free end of the first baffle 51, thereby scraping off the dust attached to the first baffle 51. Similarly, after the free end of the first baffle 51 is pressed against the hinged end of the second baffle 52 using the second elastic member, when the second baffle 52 rotates toward the direction close to the first baffle 51, the free end of the first baffle 51 moves from the hinged end of the second baffle 52 to the free end of the second baffle 52. In this process, the first baffle 51 cleans the dust attached to the second baffle 52.
[0042] In this embodiment, please refer to Figure 2 and Figure 3The first elastic member is a spring 54, the two ends of which are fixed to the intake pipe 3 and the scraper 53 respectively, and the spring 54 is located outside the intake pipe 3. When the spring 54 is in a natural state, the scraper 53 is attached to the inner wall of the intake pipe 3. The second elastic member is a spring 55, the two ends of which are detachably connected to the intake pipe 3 and the first operating rod 511 respectively. Specifically, a hanging ring is fixed to the two ends of the spring 55, and a hanging rod is fixed to the intake pipe 3 and the first operating rod 511. The spring 55 can be connected by hanging the hanging ring on the hanging rod. When the spring 55 is not in use, the spring 55 can be removed.
[0043] Please refer to Figure 3 In order to ensure the stability of the first baffle 51 and the second baffle 52 when blocking dust, bolts are threadedly connected to the first operating rod 511 and the second operating rod 521, and the bolts are connected to the air intake pipe 3, so that the first baffle 51 and the second baffle 52 can be kept in a vertical state. When the first operating rod 511 and the second operating rod 521 need to be rotated, the bolts can be removed.
[0044] Please refer to Figure 3 In order to further ensure the correct positional relationship between the scraper 53 and the first baffle 51, so that dust can be effectively scraped off every time the air intake pipe 3 rotates, a first stopper 61 is fixedly provided on the air intake pipe 3. When the first operating rod 511 abuts against the first stopper 61, the free end of the scraper 53 just abuts against the free end of the first baffle 51. Similarly, in order to ensure the correct positional relationship between the first baffle 51 and the second baffle 52, a second stopper 62 is also fixedly provided on the air intake pipe 3. When the second operating rod 521 abuts against the second stopper 62, the free end of the first baffle 51 just abuts against the free end of the second baffle 52.
[0045] Please refer to Figure 1 and Figure 2 , the second cleaning component is used to clean the dust attached to the dust bag 2 to ensure its long-term permeability and dust removal effect. Specifically, the second cleaning component includes a gas tank 56 fixed on the dust removal box 1, a pulse valve 57 fixedly connected to the gas tank 56, and a blow pipe 58 fixedly connected to the pulse valve 57. The blow pipe 58 extends into the clean room and the air outlet of the blow pipe 58 faces the dust bag 2. When the pulse valve 57 is opened, the high-pressure gas in the gas tank 56 will be instantly ejected through the blow pipe 58. The impact of this high-pressure airflow can effectively shake off the dust attached to the dust bag 2, thereby keeping the dust bag 2 clean and permeable, and also realizing the recovery of dust.
[0046] The dust chamber and the clean chamber of the dust removal box 1 are separated by a partition to ensure airtightness between the two. The dust removal bag 2 is fixed on the partition by an existing bag clamping device, which not only ensures airtightness but also facilitates replacement and maintenance of the dust removal bag 2.
[0047] The implementation principle of the embodiment of the present application is:
[0048] During the production of silicon carbide products, the generated dusty gas first enters the dust chamber of the dust removal box 1 through the air inlet pipe 3. In this process, the first baffle 51 and the second baffle 52 will first remove a portion of large particles of impurities to reduce the burden of subsequent filtering links.
[0049] Subsequently, the dust-laden gas passes through the dust bag 2, the dust particles are blocked on the outer surface of the dust bag 2, and the clean gas enters the clean room through the dust bag 2. As the filtering process continues, a layer of dust gradually accumulates on the outer surface of the dust bag 2.
[0050] When dust recovery and cleaning is required, the pulse valve 57 is opened instantly, and high-pressure gas is ejected from the gas tank 56 through the blowing pipe 58 to forcefully blow the dust bag 2. Under the impact of the high-pressure airflow, the dust attached to the outer surface of the dust bag 2 is shaken off and falls into the ash hopper 71.
[0051] The first baffle 51 and the second baffle 52 on the air inlet pipe 3 rotate alternately to scrape off the dust attached thereto. During the rotation process, the spring 54 and the spring 55 respectively ensure the close contact between the scraper 53 and the first baffle 51, and between the first baffle 51 and the second baffle 52, thereby achieving an efficient scraping effect. The scraped dust falls into the ash hopper 71 along the air inlet pipe 3.
[0052] When the dust in the ash hopper 71 accumulates to a certain amount, the staff opens the ash discharge valve 72 to discharge the dust for centralized treatment.
[0053] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A dust removal device for the production of silicon carbide products, characterized in that: include: A dust removal box (1) having a dust chamber and a clean chamber which are interconnected; A dust removal bag (2) is fixed in the dust removal box (1) and is used to separate the dust chamber and the clean chamber; An air inlet pipe (3) is fixed on the dust removal box (1) and is in communication with the dust chamber; An air outlet pipe (4) is fixed on the dust removal box (1) and communicated with the clean room; A recovery mechanism, used for recovering dust, comprising a first baffle (51) and a second baffle (52) hingedly connected to the air inlet pipe (3), a first cleaning component for cleaning dust on the first baffle (51) and the second baffle (52), and a second cleaning component for cleaning dust on the dust removal bag (2); Wherein, the first baffles (51) and the second baffles (52) are arranged alternately.
2. A dust removal device for producing silicon carbide products according to claim 1, characterized in that: The first cleaning assembly comprises a scraper (53) hinged on the air inlet pipe (3), a first operating rod (511) fixed on the first baffle (51), a second operating rod (521) fixed on the second baffle (52), a first elastic member for pushing the free end of the scraper (53) against the hinged end of the first baffle (51), and a second elastic member for pushing the free end of the first baffle (51) against the hinged end of the second baffle (52); When the first baffle (51) rotates in a direction approaching the scraper (53), the free end of the scraper (53) moves from the hinged end of the first baffle (51) to the free end of the first baffle (51); when the second baffle (52) rotates in a direction approaching the first baffle (51), the free end of the first baffle (51) moves from the hinged end of the second baffle (52) to the free end of the second baffle (52).
3. A dust removal device for producing silicon carbide products according to claim 2, characterized in that: The first elastic member is a spring sheet (54), and two ends of the spring sheet (54) are respectively fixed to the air intake pipe (3) and the scraper (53).
4. A dust removal device for producing silicon carbide products according to claim 2, characterized in that: The second elastic member is a spring (55), and two ends of the spring (55) are detachably connected to the air intake pipe (3) and the first operating rod (511), respectively.
5. A dust removal device for producing silicon carbide products according to claim 2, characterized in that: A first limit block (61) is fixedly provided on the air intake pipe (3), and when the first operating rod (511) abuts against the first limit block (61), the free end of the scraper (53) abuts against the free end of the first baffle (51).
6. A dust removal device for producing silicon carbide products according to claim 2, characterized in that: A second limit block (62) is fixedly provided on the air intake pipe (3), and when the second operating rod (521) abuts against the second limit block (62), the free end of the first baffle plate (51) abuts against the free end of the second baffle plate (52).
7. A dust removal device for producing silicon carbide products according to claim 1, characterized in that: The second cleaning component comprises an air tank (56) fixed on the dust removal box (1), a pulse valve (57) connected to the air tank (56), and a blow pipe (58) connected to the pulse valve (57); the air outlet of the blow pipe (58) faces the dust removal bag (2).
8. A dust removal device for producing silicon carbide products according to claim 1, characterized in that: The bottom of the dust removal box (1) is connected to an ash hopper (71), and an ash discharge valve (72) is provided on the ash hopper (71).