Vacuum filter based on a gas-phase white carbon black production process
Patent Information
- Application Number
- CN202522605017.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-09
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-09
AI Technical Summary
气相法白炭黑生产工艺中,传统静电除尘效率低,纳米颗粒易团聚导致蓝烟排放,过滤器易堵塞,且粉尘易穿透常规介质,难以满足连续反应要求,且白炭黑成块状影响过滤效果。
A vacuum filter was designed, comprising a collection device, a filter, a cleaning device, and an infusion device. The filter screen is rotated and cleaned, and the dispersant is sprayed evenly, through the cooperation of a motor-driven gear and gear ring. Combined with a vacuum pump, a negative pressure environment is formed to ensure filtration quality and continuous production.
It achieves continuous and stable filtration of silica, reduces the requirements for pipe materials, improves safety and filtration effect, and ensures product purity and performance.
Smart Images

Figure CN224925803U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of raw material production technology, specifically a vacuum filter based on the production process of fumed silica. Background Technology
[0002] Fumed silica is produced by the high-temperature hydrolysis of silane gas to generate nano-sized silica particles. After the reaction, the ultrafine dust in the gas phase needs to be separated quickly. Traditional electrostatic dust removal is inefficient and prone to "blue smoke" emissions due to the agglomeration of nanoparticles. The small original particle size of fumed silica allows it to easily penetrate conventional filter media. The dust is hygroscopic and may contain residual acidic gases, requiring antistatic filter materials and explosion-proof designs. Traditional intermittent filtration cannot meet the requirements of continuous gas-phase reactions. The new patented system uses multi-stage filtration to achieve continuous and stable production, reducing the requirements for pipeline materials. Antistatic filter bags and explosion-proof discs are used to improve safety. The vacuum filter needs to be linked with drying and cooling equipment to ensure product purity and performance.
[0003] The vacuum filter screen in the current fumed silica production process is prone to clogging, which affects the filtration effect. At the same time, fumed silica tends to clump together, which is not conducive to filtration. Utility Model Content
[0004] To solve the above problems, this utility model is implemented through the following technical solution: a vacuum filter based on the production process of fumed silica, including a base plate, a collection device fixedly connected to the top of the base plate, a support fixedly connected to the top of the collection device, a filter fixedly connected to the top of the support, the bottom of the filter communicating with the collection device, a fixing plate fixedly connected to one side of the filter, a cover fixedly connected to the top of the filter, a cleaning device fixedly connected to the top of the cover, a feed pipe communicating with the portion of one side of the filter located below the fixing plate, a filter screen fixedly connected to the bottom of the inner wall of the filter, an exhaust pipe communicating with the portion of one side of the filter located below the filter screen, a vacuum pump communicating with the end of the exhaust pipe away from the filter, and a discharge pipe communicating with one side of the collection device; The filter includes a housing with a through hole on one side. A gear ring is rotatably connected to the inner wall of the through hole, and a gear meshes with the gear ring. A drive shaft of a motor is fixedly connected to the bottom of the gear. One side of the motor is fixedly connected to the housing. A first dispensing pipe is fixedly connected to the inner wall of the gear ring. A first pipe is connected to the side of the first dispensing pipe away from the gear ring. A through hole is opened on the side of the first pipe, and a nozzle is connected to the bottom of the first pipe. A soft brush is fixedly connected to the bottom of the nozzle. An inclined plate is fixedly connected to the side of the first pipe below the through hole. An infusion device is fixedly connected to one side of the gear ring. The gear and gear ring are able to rotate through the motor.
[0005] Preferably, the bottom of the housing is fixedly connected to the bracket, one side of the housing is connected to the air extraction pipe, and the portion of the side of the housing located above and below the gear ring is fixedly connected to the fixing plate, which is C-shaped.
[0006] Preferably, the top of the housing is fixedly connected to the cover, the bottom of the housing is connected to the collecting device, one side of the housing is fixedly connected to the fixing plate, the portion of one side of the housing located below the fixing plate is connected to the feed pipe, and the bottom of the inner wall of the housing is fixedly connected to the filter screen.
[0007] Preferably, the infusion device includes an infusion tank, one side of which is connected to a water inlet pipe, the end of which, away from the infusion tank, is connected to the water inlet of a first water pump, and the water outlet of the first water pump is connected to an outlet pipe, wherein the first water pump draws dispersant from the infusion tank.
[0008] Preferably, one side of the infusion tank is fixedly connected to the toothed ring, one side of the first water pump is fixedly connected to the toothed ring, and the end of the outlet pipe away from the first water pump passes through the toothed ring and is connected to the first dispensing pipe.
[0009] Preferably, the cleaning device includes a water tank, with an inlet pipe connected to one side of the water tank. The end of the inlet pipe away from the water tank is connected to the inlet of a second water pump. The outlet of the second water pump is connected to an outlet pipe. The end of the outlet pipe away from the second water pump is connected to a second distribution pipe. A fan-shaped nozzle is connected to the bottom of the second distribution pipe. The second water pump is responsible for drawing water.
[0010] Preferably, the top of the second dispensing pipe is fixedly connected to the cover, the bottom of the water tank is fixedly connected to the cover, the bottom of the second water pump is fixedly connected to the cover, and the end of the water outlet pipe away from the second water pump passes through the cover and is fixedly connected to the cover.
[0011] This invention provides a vacuum filter based on a fumed silica production process. It offers the following advantages: 1. This vacuum filter, based on the fumed silica production process, is equipped with a filter. The design of the filter, including the connection between the collection device and the filter, ensures the smooth collection of filtered silica, while the support frame provides stable support for the filter. The filter screen inside the filter effectively filters, ensuring filtration quality. A vacuum pump, connected to the filter via a suction pipe, creates a negative pressure environment, accelerating the filtration process. The feed pipe design facilitates the input of silica. Inside the filter, a motor drives a gear to rotate, which in turn rotates a gear ring, causing the first dispensing pipe and the first conduit to rotate accordingly. During rotation, the nozzle and soft brush apply dispersant to the filter screen surface. An inclined plate ensures thorough mixing of the dispersant and silica, and the dispensing device provides the dispersant for filtration.
[0012] 2. The vacuum filter based on the fumed silica production process is equipped with a liquid delivery device. The liquid delivery device is designed to draw liquid from the inlet pipe into the delivery tank through the first water pump, and then deliver it to the first distribution pipe through the outlet pipe. The whole process is smooth and continuous. The delivery tank and the first water pump are both fixedly connected to the gear ring. The design of the outlet pipe passing through the gear ring and connecting to the first distribution pipe makes the liquid distribution more uniform and improves the performance of the entire liquid delivery system.
[0013] 3. The vacuum filter based on the fumed silica production process is equipped with a cleaning device. The cleaning device is designed to use a second water pump to draw water from the water tank through the inlet pipe, then transport it through the outlet pipe to the second distribution pipe, and finally spray it evenly through the fan-shaped nozzle, which can effectively clean the filter screen. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the vacuum filter structure based on the fumed silica production process of this utility model; Figure 2 This is a schematic diagram of the internal structure of the vacuum filter based on the fumed silica production process of this utility model; Figure 3 This is a schematic diagram of the filter structure of this utility model; Figure 4 This is a schematic diagram of the internal structure of the filter of this utility model; Figure 5 This is a schematic diagram of the infusion device of this utility model; Figure 6 This is a schematic diagram of the internal structure of the infusion device of this utility model; Figure 7 This is a schematic diagram of the cleaning device of this utility model; Figure 8 This is a schematic diagram of the internal structure of the cleaning device of this utility model.
[0015] In the diagram: 1. Collection device; 2. Discharge pipe; 3. Support; 4. Filter; 41. Housing; 42. Through hole; 43. Gear ring; 44. Gear; 45. Motor; 46. First pipe; 47. Through hole; 48. Inclined plate; 49. Nozzle; 410. Soft brush; 411. Infusion device; 4111. Infusion tank; 4112. Inlet pipe; 4113. First water pump; 4114. Outlet pipe; 412. First dispensing pipe; 5. Fixing plate; 6. Feed pipe; 7. Cover; 8. Cleaning device; 81. Water tank; 82. Inlet pipe; 83. Second water pump; 84. Outlet pipe; 85. Second dispensing pipe; 86. Fan-shaped nozzle; 9. Vacuum pump; 10. Suction pipe; 11. Base plate; 12. Filter screen. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] For the first embodiment, please refer to... Figures 1-4 This utility model provides a technical solution: a vacuum filter based on the production process of fumed silica, including a base plate 11, a collection device 1 fixedly connected to the top of the base plate 11, a support 3 fixedly connected to the top of the collection device 1, a filter 4 fixedly connected to the top of the support 3, the bottom of the filter 4 communicating with the collection device 1, a fixing plate 5 fixedly connected to one side of the filter 4, a cover 7 fixedly connected to the top of the filter 4, a cleaning device 8 fixedly connected to the top of the cover 7, a feed pipe 6 communicating with the part of one side of the filter 4 below the fixing plate 5, a filter screen 12 fixedly connected to the bottom of the inner wall of the filter 4, a suction pipe 10 communicating with the part of one side of the filter 4 below the filter screen 12, a vacuum pump 9 communicating with the end of the suction pipe 10 away from the filter 4, and a discharge pipe 2 communicating with one side of the collection device 1. The filter 4 includes a housing 41. A through hole 42 is provided on one side of the housing 41. A gear ring 43 is rotatably connected to the inner wall of the through hole 42. A gear 44 is meshed with the gear ring 43. The drive shaft of a motor 45 is fixedly connected to the bottom of the gear 44. One side of the motor 45 is fixedly connected to the housing 41. A first liquid distribution pipe 412 is fixedly connected to the inner wall of the gear ring 43. A first pipe 46 is connected to the side of the first liquid distribution pipe 412 away from the gear ring 43. A through hole 47 is provided on the side of the first pipe 46. A nozzle 49 is connected to the bottom of the first pipe 46. A soft brush 410 is fixedly connected to the bottom of the nozzle 49. A sloping plate 48 is fixedly connected to the portion of the surface below the through hole 47. An infusion device 411 is fixedly connected to one side of the toothed ring 43. The bottom of the housing 41 is fixedly connected to the bracket 3. One side of the housing 41 is connected to the suction pipe 10. The portions of the side of the housing 41 above and below the toothed ring 43 are fixedly connected to the fixing plate 5. The fixing plate 5 is C-shaped. The top of the housing 41 is fixedly connected to the cover 7. The bottom of the housing 41 is connected to the collection device 1. One side of the housing 41 is fixedly connected to the fixing plate 5. The portion of one side of the housing 41 below the fixing plate 5 is connected to the feed pipe 6. The bottom of the inner wall of the housing 41 is fixedly connected to the filter screen 12.
[0018] In use, silica is fed into the housing 41 of the filter 4 through the feed pipe 6. The vacuum pump 9 is started, and the vacuum pump 9 extracts the air below the filter screen 12 in the housing 41 through the suction pipe 10, creating a negative pressure environment inside the housing 41. This accelerates the filtration of the material through the filter screen 12. The filtered material falls into the collection device 1 and is finally discharged from the collection device 1 through the discharge pipe 2. When silica enters the filter 4, the motor 45 is started. The motor 45 drives the gear 44 to rotate, and the gear 44 drives the gear ring 43 to rotate. The first dispensing pipe 412 rotates, which in turn rotates the first pipeline 46. The infusion device 411 delivers the dispersant through the first dispensing pipe 412 to the first pipeline 46. The dispersant is sprayed out from the through hole 47 and the nozzle 49 on the side of the first pipeline 46. At the same time, the soft brush 410 at the bottom of the first pipeline 46 brushes the dispersant onto the filter screen 12 as the first pipeline 46 rotates. The inclined plate 48 can stir the material. During the rotation of the first pipeline 46, the dispersant overflows from the side of the first pipeline 46 and is fully mixed by the stirring of the inclined plate 48.
[0019] For the second embodiment, please refer to... Figures 1-6 Based on the first embodiment, the present invention provides a technical solution: the infusion device 411 includes an infusion tank 4111, one side of the infusion tank 4111 is connected to a water inlet pipe 4112, the end of the water inlet pipe 4112 away from the infusion tank 4111 is connected to the water inlet of a first water pump 4113, the water outlet of the first water pump 4113 is connected to an outlet pipe 4114, one side of the infusion tank 4111 is fixedly connected to a gear ring 43, one side of the first water pump 4113 is fixedly connected to the gear ring 43, and the end of the outlet pipe 4114 away from the first water pump 4113 passes through the gear ring 43 and is connected to the first dispensing pipe 412.
[0020] When in use, the first water pump 4113 is started. The first water pump 4113 draws the dispersant from the infusion tank 4111 through the inlet pipe 4112. When filtering, the dispersant in the infusion tank 4111 is drawn out by the first water pump 4113 and flows out through the outlet pipe 4114. The liquid in the outlet pipe 4114 passes through the toothed ring 43 and flows smoothly into the first dispensing pipe 412, and then is sprayed into the silica through the first dispensing pipe 412.
[0021] Third embodiment, please refer to Figures 1-8Based on the second embodiment, this utility model provides a technical solution: the cleaning device 8 includes a water tank 81, a water inlet pipe 82 connected to one side of the water tank 81, a water inlet end of the water inlet pipe 82 away from the water tank 81 connected to the water inlet end of a second water pump 83, a water outlet pipe 84 connected to the water outlet end of the second water pump 83, a second liquid distribution pipe 85 connected to the end of the water outlet pipe 84 away from the second water pump 83, a fan-shaped nozzle 86 connected to the bottom of the second liquid distribution pipe 85, a top of the second liquid distribution pipe 85 fixedly connected to a cover 7, a bottom of the water tank 81 fixedly connected to a cover 7, a bottom of the second water pump 83 fixedly connected to a cover 7, and a water outlet pipe 84 away from the second water pump 83 passing through the cover 7 and fixedly connected to the cover 7.
[0022] When in use, the second water pump 83 is started. The second water pump 83 draws water from the water tank 81 through the water inlet pipe 82. After being pressurized by the second water pump 83, the water is delivered to the second distribution pipe 85 through the water outlet pipe 84. Then, it is evenly sprayed out by the fan-shaped nozzle 86 at the bottom of the second distribution pipe 85 to rinse the surface of the filter screen 12. Due to the design of the second distribution pipe 85 and the fan-shaped nozzle 86, the sprayed water can cover a large and even area, thus improving the cleaning efficiency.
[0023] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A vacuum filter based on a fumed silica production process, characterized in that: Includes a base plate (11), a collection device (1) is fixedly connected to the top of the base plate (11), a bracket (3) is fixedly connected to the top of the collection device (1), a filter (4) is fixedly connected to the top of the bracket (3), the bottom of the filter (4) is connected to the collection device (1), a fixing plate (5) is fixedly connected to one side of the filter (4), a cover (7) is fixedly connected to the top of the filter (4), a cleaning device (8) is fixedly connected to the top of the cover (7), a feed pipe (6) is connected to the part of one side of the filter (4) below the fixing plate (5), a filter screen (12) is fixedly connected to the bottom of the inner wall of the filter (4), a suction pipe (10) is connected to the part of one side of the filter (4) below the filter screen (12), a vacuum pump (9) is connected to the end of the suction pipe (10) away from the filter (4), and a discharge pipe (2) is connected to one side of the collection device (1). The filter (4) includes a housing (41), a through hole (42) is provided on one side of the housing (41), a gear ring (43) is rotatably connected to the inner wall of the through hole (42), a gear (44) is meshed with the gear ring (43), a drive shaft of a motor (45) is fixedly connected to the bottom of the gear (44), one side of the motor (45) is fixedly connected to the housing (41), a first liquid distribution pipe (412) is fixedly connected to the inner wall of the gear ring (43), a first pipe (46) is connected to the side of the first liquid distribution pipe (412) away from the gear ring (43), a through hole (47) is provided on the side of the first pipe (46), a nozzle (49) is connected to the bottom of the first pipe (46), a soft brush (410) is fixedly connected to the bottom of the nozzle (49), an inclined plate (48) is fixedly connected to the part of the side of the first pipe (46) below the through hole (47), and an infusion device (411) is fixedly connected to one side of the gear ring (43).
2. A vacuum filter based on a fumed silica production process according to claim 1, characterized in that: The bottom of the housing (41) is fixedly connected to the bracket (3), one side of the housing (41) is connected to the air extraction pipe (10), and the part of the side of the housing (41) above and below the toothed ring (43) is fixedly connected to the fixing plate (5), which is C-shaped.
3. A vacuum filter based on a fumed silica production process according to claim 2, characterized in that: The top of the housing (41) is fixedly connected to the cover (7), the bottom of the housing (41) is connected to the collecting device (1), one side of the housing (41) is fixedly connected to the fixing plate (5), the part of the housing (41) located below the fixing plate (5) is connected to the feed pipe (6), and the bottom of the inner wall of the housing (41) is fixedly connected to the filter screen (12).
4. A vacuum filter based on a fumed silica production process according to claim 3, characterized in that: The infusion device (411) includes an infusion tank (4111), one side of which is connected to a water inlet pipe (4112), the end of which is away from the infusion tank (4111) is connected to the water inlet of a first water pump (4113), and the water outlet of the first water pump (4113) is connected to an outlet pipe (4114).
5. A vacuum filter based on a fumed silica production process according to claim 4, characterized in that: The infusion tank (4111) is fixedly connected to the toothed ring (43) on one side, and the first water pump (4113) is fixedly connected to the toothed ring (43) on one side. The end of the water outlet pipe (4114) away from the first water pump (4113) passes through the toothed ring (43) and is connected to the first liquid distribution pipe (412).
6. A vacuum filter based on a fumed silica production process according to claim 5, characterized in that: The cleaning device (8) includes a water tank (81), one side of which is connected to a water inlet pipe (82). The end of the water inlet pipe (82) away from the water tank (81) is connected to the water inlet of a second water pump (83). The outlet end of the second water pump (83) is connected to an outlet pipe (84). The end of the outlet pipe (84) away from the second water pump (83) is connected to a second liquid distribution pipe (85). The bottom of the second liquid distribution pipe (85) is connected to a fan-shaped nozzle (86).
7. A vacuum filter based on a fumed silica production process according to claim 6, characterized in that: The top of the second liquid separator (85) is fixedly connected to the cover (7), the bottom of the water tank (81) is fixedly connected to the cover (7), the bottom of the second water pump (83) is fixedly connected to the cover (7), and the end of the water outlet pipe (84) away from the second water pump (83) passes through the cover (7) and is fixedly connected to the cover (7).
