Pressure relief device for pneumatic conveying

Abstract

The pressure relief device for pneumatic conveying comprises a box body, the top of the left side of the box body is movably connected with a first motor through a first bearing, the output end of the first motor is fixedly connected with a rotating rod, eccentric wheels are arranged on the two sides of the surface of the rotating rod in a sleeved mode, and supports are arranged at the bottoms of the eccentric wheels. The bottom of the support is fixedly connected with a protection box, and the top of an inner cavity of the protection box is fixedly connected with a second motor. The first motor works to drive the rotating rod to rotate, the eccentric wheel, the support, the protection box and the connecting plate drive the dust filtering net and all structures on the dust filtering net to integrally shake up and down, materials on the surface of the dust filtering net are shaken off, the second motor works to drive the scraper to rotate through the movable rod, and materials attached to the surface of the scraper are scraped off. Falling materials enter the pneumatic conveying pipeline through the material guide cover and the through pipe, a worker does not need to disassemble and clean the dust filtering net, and use by people is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic conveying technology, specifically a pressure relief device for pneumatic conveying. Background Technology

[0002] Pneumatic conveying, also known as airflow conveying, utilizes the energy of airflow to transport granular materials along the airflow direction within a closed pipeline. It is a specific application of fluidization technology. Pneumatic conveying devices have a simple structure and are easy to operate. They can be used for horizontal, vertical, or inclined conveying. A pressure relief device is installed at the end of the pneumatic conveying process to release pressure.

[0003] Existing pressure relief devices blow out some powdery material during the pressure relief process. To prevent the loss of powdery material, a filter mechanism is installed. However, after a period of use, the material will clog the filter mechanism, requiring users to disassemble and clean it, which causes inconvenience to users. Therefore, a pressure relief device for pneumatic conveying has been developed to address this issue. Utility Model Content

[0004] The purpose of this utility model is to provide a pressure relief device for pneumatic conveying, which has the advantages of self-cleaning and anti-clogging. It solves the problem that existing pressure relief devices blow out some powdery materials during the pressure relief process. In order to avoid the loss of powdery materials, a filter mechanism is set up. However, after a period of use, the material will clog the filter mechanism, which requires the user to disassemble and clean it, causing inconvenience to users.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure relief device for pneumatic conveying, comprising a housing, a first motor movably connected to the top left side of the housing via a first bearing, a rotating rod fixedly connected to the output end of the first motor, eccentric wheels sleeved on both sides of the rotating rod, a bracket provided at the bottom of the eccentric wheels, a protective box fixedly connected to the bottom of the bracket, a second motor fixedly connected to the top of the inner cavity of the protective box, a movable rod fixedly connected to the output end of the second motor, the bottom of the movable rod extending to the bottom of the protective box, a dust filter sleeved on the surface of the movable rod, and the top two sides of the dust filter... A spring is fixedly connected, and a fixing plate is fixedly connected to the top of the spring. The fixing plate is fixedly connected to the inner cavity of the box. Scrapers are fixedly connected to the bottom of both sides of the movable rod. A sliding rod is fixedly connected to the bottom of the fixing plate near the protective box. A sliding sleeve is fitted on the bottom of the surface of the sliding rod. A connecting plate is fixedly connected between the sliding sleeve and the protective box. An opening is opened at the top of the box. A material guide cover is fixedly connected to the bottom between the two sides of the inner cavity of the box. A through pipe is connected to the bottom of the material guide cover. The bottom of the through pipe extends to the bottom of the box. A pressure relief valve is fixedly connected to the top of the through pipe. A pressure gauge is connected to the right side of the through pipe.

[0006] Preferably, a protective shell is fitted onto the surface of the first motor, and the protective shell is fixedly connected to the housing.

[0007] Preferably, the right side of the rotating rod is movably connected to the top of the right side of the inner cavity of the housing via a second bearing, and the eccentric wheel is in contact with the bracket.

[0008] Preferably, a limiting plate is fixedly connected to the bottom of the slide rod, and the connecting plate is fixedly connected to the dust filter screen.

[0009] Preferably, mounting plates are fixedly connected to the bottom of both sides of the through pipe, the top of the mounting plate is provided with mounting holes, and a sealing gasket is fitted on the bottom of the surface of the through pipe.

[0010] Preferably, a maintenance plate is fixedly connected to the front of the enclosure by bolts, an observation window is fixedly connected to the front of the maintenance plate, and a controller is fixedly connected to the bottom right side of the enclosure.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model uses a first motor to drive a rotating rod to rotate, which in turn causes the dust filter and all its components to shake up and down via an eccentric wheel, bracket, protective box, and connecting plate. This shakes off the material on the surface of the dust filter. Meanwhile, a second motor drives a scraper via a movable rod to scrape off the material adhering to its surface. The fallen material then enters the pneumatic conveying pipeline through a guide cover and a through pipe. This eliminates the need for workers to disassemble and clean the dust filter, making it convenient for users.

[0013] 2. This utility model can protect the first motor by setting a protective shell, limit the sliding sleeve by setting a limiting plate, facilitate the user to fix the entire device by setting an mounting plate and mounting holes, and facilitate the user to inspect and maintain the internal components of the box by setting a maintenance plate. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model;

[0016] Figure 3 This is the main view of the structure of this utility model.

[0017] In the diagram: 1. Housing; 2. First motor; 3. Rotating rod; 4. Eccentric wheel; 5. Bracket; 6. Protective box; 7. Second motor; 8. Movable rod; 9. Dust filter; 10. Spring; 11. Fixing plate; 12. Scraper; 13. Sliding rod; 14. Sliding sleeve; 15. Connecting plate; 16. Opening; 17. Material guide cover; 18. Through pipe; 19. Pressure relief valve; 20. Pressure gauge; 21. Mounting plate; 22. Mounting hole; 23. Sealing gasket; 24. Inspection plate. Detailed Implementation

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Please see Figure 1-3A pneumatic conveying pressure relief device includes a housing 1. A maintenance plate 24 is bolted to the front of the housing 1, and an observation window is fixedly connected to the front of the maintenance plate 24. A controller is fixedly connected to the bottom right side of the housing 1. The maintenance plate 24 facilitates maintenance of the internal components of the housing 1. A first motor 2 is movably connected to the top left side of the housing 1 via a first bearing. A protective shell is fitted over the surface of the first motor 2 and fixedly connected to the housing 1, protecting the first motor 2. A rotating rod 3 is fixedly connected to the output end of the first motor 2. Eccentric wheels 4 are fitted on both sides of the rotating rod 3, and a bracket is provided at the bottom of the eccentric wheels 4. 5. The right side of the rotating rod 3 is movably connected to the top right side of the inner cavity of the housing 1 via the second bearing. The eccentric wheel 4 is in contact with the bracket 5. The bottom of the bracket 5 is fixedly connected to the protective box 6. The top of the inner cavity of the protective box 6 is fixedly connected to the second motor 7. The output end of the second motor 7 is fixedly connected to the movable rod 8. The bottom of the movable rod 8 extends to the bottom of the protective box 6. A dust filter 9 is sleeved on the surface of the movable rod 8. Springs 10 are fixedly connected to both sides of the top of the dust filter 9. A fixing plate 11 is fixedly connected to the top of the springs 10. The fixing plate 11 is fixedly connected to the inner cavity of the housing 1. Scrapers 12 are fixedly connected to the bottom of both sides of the movable rod 8. The bottom of the fixing plate 11 is fixedly connected to the side near the protective box 6. A sliding rod 13 is connected to the protective box 6. A sliding sleeve 14 is fitted onto the bottom of the sliding rod 13. A connecting plate 15 is fixedly connected between the sliding sleeve 14 and the protective box 6. A limiting plate is fixedly connected to the bottom of the sliding rod 13. The connecting plate 15 is fixedly connected to the dust filter 9. By setting the limiting plate, the sliding sleeve 14 can be limited. An opening 16 is opened at the top of the box 1. A guide cover 17 is fixedly connected to the bottom between the two sides of the inner cavity of the box 1. A through pipe 18 is connected to the bottom of the guide cover 17. Mounting plates 21 are fixedly connected to the bottom of both sides of the through pipe 18. Mounting holes 22 are opened at the top of the mounting plates 21. A sealing gasket 23 is fitted onto the bottom of the surface of the through pipe 18. By setting the mounting plates 21 and the mounting holes 22, it is possible to... The entire device is fixedly installed by the user. The bottom of the pipe 18 extends to the bottom of the box 1, and the top of the pipe 18 is fixedly connected to the pressure relief valve 19. The right side of the pipe 18 is connected to the pressure gauge 20. The first motor 2 drives the rotating rod 3 to rotate, which in turn drives the dust filter 9 and all the structures on the dust filter 9 to shake up and down through the eccentric wheel 4, bracket 5, protective box 6 and connecting plate 15, causing the material on the surface of the dust filter 9 to fall off. The second motor 7 drives the scraper 12 to rotate through the movable rod 8, scraping off the material attached to its surface. The fallen material enters the pneumatic conveying pipeline through the guide cover 17 and the pipe 18. There is no need for the staff to disassemble and clean the dust filter 9, which is convenient for people to use.

[0020] In use, the entire device is installed on the pneumatic conveying pipeline via the mounting plate 21 and mounting holes 22. The connection is sealed with the sealing gasket 23, and the pressure at the end of the pipeline is monitored by the pressure gauge 20. When pressure relief is required, the pressure relief valve 19 is opened. After each pressure relief, the first motor 2 drives the rotating rod 3 to rotate, which in turn causes the dust filter 9 and all the structures on the dust filter 9 to shake up and down through the eccentric wheel 4, bracket 5, protective box 6, and connecting plate 15, causing the material on the surface of the dust filter 9 to fall off. The second motor 7 then drives the scraper 12 to rotate via the movable rod 8, scraping off the material adhering to its surface. The fallen material enters the pneumatic conveying pipeline through the guide cover 17 and the through pipe 18. There is no need for personnel to disassemble and clean the dust filter 9, making it convenient for people to use.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure relief device for pneumatic conveying, comprising a housing (1), characterized in that: The top left side of the housing (1) is movably connected to a first motor (2) via a first bearing. A rotating rod (3) is fixedly connected to the output end of the first motor (2). An eccentric wheel (4) is fitted on both sides of the rotating rod (3). A bracket (5) is provided at the bottom of the eccentric wheel (4). A protective box (6) is fixedly connected to the bottom of the bracket (5). A second motor (7) is fixedly connected to the top of the inner cavity of the protective box (6). A movable rod (8) is fixedly connected to the output end of the second motor (7). The bottom of the movable rod (8) extends to the bottom of the protective box (6). A dust filter (9) is fitted on the surface of the movable rod (8). Springs (10) are fixedly connected to both sides of the top of the dust filter (9). A fixing plate (11) is fixedly connected to the top of the springs (10). 11) The inner cavity of the box (1) is fixedly connected. Scrapers (12) are fixedly connected to the bottom of both sides of the movable rod (8). A sliding rod (13) is fixedly connected to the bottom of the fixed plate (11) near the protective box (6). A sliding sleeve (14) is fitted on the bottom of the surface of the sliding rod (13). A connecting plate (15) is fixedly connected between the sliding sleeve (14) and the protective box (6). An opening (16) is opened at the top of the box (1). A guide cover (17) is fixedly connected to the bottom between the two sides of the inner cavity of the box (1). A through pipe (18) is connected to the bottom of the guide cover (17). The bottom of the through pipe (18) extends to the bottom of the box (1). A pressure relief valve (19) is fixedly connected to the top of the through pipe (18). A pressure gauge (20) is connected to the right side of the through pipe (18).

2. The pressure relief device for pneumatic conveying according to claim 1, characterized in that: The surface of the first motor (2) is covered with a protective shell, and the protective shell is fixedly connected to the housing (1).

3. The pressure relief device for pneumatic conveying according to claim 1, characterized in that: The right side of the rotating rod (3) is movably connected to the top of the right side of the inner cavity of the housing (1) via the second bearing, and the eccentric wheel (4) is in contact with the bracket (5).

4. A pressure relief device for pneumatic conveying according to claim 1, characterized in that: The bottom of the slide bar (13) is fixedly connected to a limiting plate, and the connecting plate (15) is fixedly connected to the dust filter (9).

5. A pressure relief device for pneumatic conveying according to claim 1, characterized in that: The bottom of both sides of the tube (18) is fixedly connected to the mounting plate (21), the top of the mounting plate (21) is provided with mounting hole (22), and the bottom of the surface of the tube (18) is covered with sealing gasket (23).

6. A pressure relief device for pneumatic conveying according to claim 1, characterized in that: The front of the box (1) is fixedly connected to a maintenance plate (24) by bolts, and the front of the maintenance plate (24) is fixedly connected to an observation window. The bottom right side of the box (1) is fixedly connected to a controller.

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