Pneumatic conveying equipment for bag-type dust collector

Abstract

The utility model provides pneumatic conveying equipment for a bag-type dust collector, which relates to the field of pneumatic conveying and comprises an annular shell, a rear fixing plate is mounted on one side in the annular shell, a front fixing plate is mounted on the other side in the annular shell, and a plurality of fan blades are mounted between the front fixing plate and the rear fixing plate. The rear fixing plate and the front fixing plate are provided with a plurality of limiting holes, the two ends of the fan blades are arranged in the corresponding limiting holes of the front fixing plate and the rear fixing plate respectively, the fan blades are provided with fixing baffles at the other ends of the front fixing plate, and second through holes are formed in the positions, close to the two sides of each limiting hole, of the front fixing plate. Two first through holes formed in the fixing baffle correspond to the second through holes located in the two sides of the limiting hole in position, a cavity is formed in the pin, a sliding block is installed in the cavity, a sliding groove is formed between the pin and the cavity, a clamping groove is formed in the position, at the sliding groove, of the front fixing plate, a ball is installed in the sliding groove, and a threaded rod is installed in the center of the pin. According to the device, the fan blades can be independently replaced, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of pneumatic conveying, and specifically relates to a pneumatic conveying device for a bag filter. Background Technique

[0002] A bag filter is a device that uses a filter material made of fibers to capture particulate matter, and is composed of a dust collector main body, filter bags and related accessories. The bag dust removal technology has the advantages of high filtration efficiency, low emission concentration, etc. Especially, it has a good capture effect on fine particles. Its filtration performance is independent of the dust properties, and it is suitable for many occasions with strict requirements for industrial soot emissions. Currently, it has become one of the mainstream technologies for industrial dust and soot control.

[0003] Based on the above, the inventor found the following problems: Most bag filters use centrifugal fans. If there are large particles in the dust, when the fan rotates at high speed, the fan blades will deform when hitting the large particles, and then the entire impeller has to be replaced, resulting in a relatively high maintenance cost.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a pneumatic conveying device for a bag filter is provided, in order to achieve the purpose of having more practical value. Content of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides a pneumatic conveying device for a bag filter, which is achieved by the following specific technical means:

[0006] A pneumatic conveying device for a bag filter includes an annular outer shell. On one side inside the annular outer shell, a rear fixing plate is installed, and on the other side inside the annular outer shell, a front fixing plate is installed. A number of fan blades are evenly installed between the front fixing plate and the rear fixing plate. The rear fixing plate and the front fixing plate are symmetrically provided with a number of limiting holes. The two ends of the fan blades are respectively in the corresponding limiting holes of the front fixing plate and the rear fixing plate. At the other end of the fan blade on the front fixing plate, a fixed baffle is provided. The fixed baffle is provided with a first through hole. On the front fixing plate, at positions on both sides of each limiting hole, second through holes are provided, and the two first through holes provided on the fixed baffle correspond to the positions of the second through holes on both sides of the limiting hole. A pin is installed in the first through hole and the second through hole. A cavity is provided inside the pin, and a slider is installed in the cavity. A chute is provided between the outer wall of the pin and the cavity. Inside the front fixing plate, a clamping groove is provided at the position of the chute. A ball is installed in the chute. A threaded rod is installed at the central position of the pin, and the threaded rod is threadedly connected to the slider.

[0007] Further, the threaded rod is rotatably connected to the pin, and the threaded rod is rotatably connected to the bottom of the cavity.

[0008] Further, a front cover plate is installed on one side of the annular housing close to the front fixing plate. The front cover plate is composed of two symmetrical semi - rings. The front fixing plate is annular. A plurality of first fixing beams are evenly installed inside the annular housing. The other end of the first fixing beam is installed with an air inlet pipe. The air inlet pipe, the front cover plate and the front fixing plate are on the same central axis. The first fixing beam is between the front fixing plate and the front cover plate. The outer wall of the air outlet pipe and the inner wall of the front cover plate are in a matching shape.

[0009] Further, an air outlet is provided on one side of the annular housing. The air outlet is between the front cover plate and the rear cover plate. An air outlet pipe is installed at the position of the air outlet of the annular housing.

[0010] Further, a rear cover plate is installed on one side of the annular housing close to the rear fixing plate. A motor is fixedly installed on the side of the rear cover plate away from the rear fixing plate. A connector is installed between the output end of the motor and the rear fixing plate.

[0011] Further, the diameter of the pin is the same as the diameters of the first through - hole and the second through - hole. The diameter of the sliding groove on the surface of the pin is smaller than the diameter of the ball. The part of the slider connected to the ball is conical, and the slider is slidably connected to the cavity.

[0012] Further, a second fixing beam is installed between the front fixing plate and the rear fixing plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] With the utility model, the damaged fan blades can be replaced individually through the limiting holes on the front fixing plate, the limiting holes on the rear fixing plate and the threaded rod, avoiding the waste of cost caused by replacing the whole impeller and reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three - dimensional schematic diagram of a pneumatic conveying device for a bag - type dust collector according to the utility model;

[0016] Figure 2 is a three - dimensional schematic diagram of the internal structure of a pneumatic conveying device for a bag - type dust collector according to the utility model;

[0017] Figure 3 is a plan schematic diagram of a pin of a pneumatic conveying device for a bag - type dust collector according to the utility model;

[0018] Figure 4 is a three - dimensional schematic diagram of the internal structure of a pneumatic conveying device for a bag - type dust collector according to the utility model.

[0019] In the figure, the corresponding relationship between the component names and the drawing reference numerals is as follows:

[0020] 1. Ring-shaped housing; 2. Air outlet pipe; 3. Air inlet pipe; 4. Front fixing plate; 5. Rear fixing plate; 6. Limiting hole; 7. Motor; 8. Fan blade; 9. Fixed baffle; 10. Pin; 11. Ball; 12. Slide block; 13. Threaded rod; 14. Chute; 15. Card slot; 16. Second fixing beam; 17. First fixing beam; 18. Front cover plate; 19. Rear cover plate. Detailed implementation mode

[0021] The following further describes the implementation mode of the present utility model in detail with reference to the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0022] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] Embodiment:

[0025] As shown in the attached Figure 1 to the attached Figure 4 figure:

[0026] The utility model provides a pneumatic conveying device for a bag filter, which comprises an annular outer shell 1. On one side inside the annular outer shell 1, a rear fixing plate 5 is installed. On the other side inside the annular outer shell 1, a front fixing plate 4 is installed. When the front fixing plate 4 and the rear fixing plate 5 rotate, they drive the fan blades 8 to rotate. A plurality of fan blades 8 are evenly installed between the front fixing plate 4 and the rear fixing plate 5. When the fan blades 8 rotate, they generate wind energy. A plurality of limiting holes 6 are symmetrically arranged on the rear fixing plate 5 and the front fixing plate 4. The limiting holes 6 are used for installing the fan blades 8. The two ends of the fan blades 8 are respectively in the corresponding limiting holes 6 of the front fixing plate 4 and the rear fixing plate 5. At the other end of the fan blade 8 on the front fixing plate 4, there is a fixing baffle 9. The fixing baffle 9 is provided with a first through hole. The fixing baffle 9 is used for fixing the fan blade 8 on the front fixing plate 4 to prevent it from detaching. On both sides of each limiting hole 6 near the front fixing plate 4, second through holes are arranged. The two first through holes arranged on the fixing baffle 9 correspond to the positions of the second through holes on both sides of the limiting hole 6. The first through hole and the second through hole are used for installing a pin 10. A pin 10 is installed in the first through hole and the second through hole. A cavity is arranged inside the pin 10. A slider 12 is installed in the cavity. The rotation of the threaded rod 13 makes the slider 12 move, thereby pushing the ball 11. A chute 14 is arranged between the outer wall of the pin 10 and the cavity. The ball 11 moves in the chute 14. A clamping groove 15 is arranged inside the front fixing plate 4 at the position of the chute 14. When the ball 11 enters the clamping groove 15, it plays a fixing role. The ball 11 is installed in the chute 14. The pin 10 is fixed through the ball 11. A threaded rod 13 is installed at the central position of the pin 10. The threaded rod 13 is in threaded connection with the slider 12. The rotation of the threaded rod 13 makes the slider 12 move.

[0027] Wherein, the threaded rod 13 is rotatably connected with the pin 10, and the threaded rod 13 is rotatably connected with the bottom of the cavity. When the threaded rod 13 rotates, its position relative to the pin 10 will not change.

[0028] Wherein, on one side of the annular outer shell 1 close to the front fixing plate 4, a front cover plate 18 is installed. The front cover plate 18 is composed of two symmetrical semi-circular cover plates, and the two semi-circular cover plates can be disassembled. The front cover plate 18 is fixedly connected with the first fixing beam 17 by screws. The front fixing plate 4 is annular. Air enters from the inner ring of the front cover plate 18. A plurality of first fixing beams 17 are evenly installed on the inner side of the annular outer shell 1. The other end of the first fixing beam 17 is installed with an air inlet pipe 3. The first fixing beam 17 is used for fixedly installing the front fixing plate 4. The air inlet pipe 3, the front cover plate 18 and the front fixing plate 4 are on the same central axis. The first fixing beam 17 is between the front fixing plate 4 and the front cover plate 18. The outer wall of the air inlet pipe 3 and the inner wall of the front cover plate 18 are in a matching shape. Air enters from the air inlet pipe 3.

[0029] Wherein, an air outlet is arranged on one side of the annular outer shell 1, and the air outlet is between the front cover plate 18 and the rear cover plate 19. An air outlet pipe 2 is installed at the position of the air outlet of the annular outer shell 1. Air leaves from the air outlet pipe 2.

[0030] Wherein, a rear cover plate 19 is installed on one side of the annular outer shell 1 close to the rear fixing plate 5, and a motor 7 is fixedly installed on the side of the rear cover plate 19 away from the rear fixing plate 5. A connector is installed between the output end of the motor 7 and the rear fixing plate 5, and the motor 7 drives the rear fixing plate 5 to rotate through the connector.

[0031] Wherein, the diameter of the pin 10 is the same as the diameters of the first through hole and the second through hole. The same diameter makes the fan blade 8 more firmly fixed by the pin 10, preventing the pin 10 from rotating when the threaded rod 13 rotates. The diameter of the sliding groove 14 on the surface of the pin 10 is smaller than the diameter of the ball 11. This structure prevents the ball 11 from detaching from the pin 10 through the sliding groove 14, and the exposed part of the ball 11 when it is at the outermost side of the pin 10 is adapted to the shape of the card slot 15. The part of the slider 12 connected to the ball 11 is conical. The conical slider 12 can control the position of the ball 11 when moving up and down in the cavity, so as to achieve fixation or release of fixation, and the slider 12 is slidably connected to the cavity.

[0032] Wherein, a second fixing beam 16 is installed between the front fixing plate 4 and the rear fixing plate 5. The front fixing plate 4 and the rear fixing plate 5 are fixedly connected through the second fixing beam 16. When the rear fixing plate 5 rotates, it drives the front fixing plate 4 to rotate through the second fixing beam 16.

[0033] The specific usage method and function of this embodiment:

[0034] Before the utility model is installed and used, the staff needs to check the internal components or structures of the device. After the check is correct, it can be used normally. Connect the utility model to the power supply, connect an external controller, and start the motor 7. The motor 7 drives the rear fixing plate 5 to rotate through the connector. The rear fixing plate 5 drives the front fixing plate 4 to rotate through the second fixing beam 16, and then it can operate. When the fan blade 8 needs to be replaced, stop the motor 7 through the controller, disconnect the power supply, remove the screws on the front cover plate 18, remove the front cover plate 18, rotate the threaded rod 13 to make the slider 12 move away from the ball 11, pull out the pin 10 outward. When the sliding groove 14 of the pin 10 leaves the card slot 15, the ball 11 is pressed into the interior of the pin 10, and the fan blade 8 is removed. Then, the end of the new fan blade 8 away from the fixed baffle 9 enters the limiting hole 6 of the rear fixing plate 5 through the limiting hole 6 of the front fixing plate 4, making the fixed baffle 9 closely fit the front fixing plate 4. Then, insert the pin 10 into the first through hole and the second through hole in sequence, turn the threaded rod 13, the slider 12 moves and presses the ball 11, so that the ball 11 reaches one end of the sliding groove 14 close to the front fixing plate 4, and a part of the ball 11 enters the card slot 15. Install the front cover plate 18, and the replacement can be completed.

[0035] The embodiments of the present utility model are given for the purpose of illustration and description. Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A pneumatic conveying device for a bag filter, comprising an annular outer shell (1), characterized in that: On one side inside the annular housing (1), a rear fixing plate (5) is installed. On the other side inside the annular housing (1), a front fixing plate (4) is installed. A number of fan blades (8) are evenly installed between the front fixing plate (4) and the rear fixing plate (5). A number of limiting holes (6) are symmetrically provided on the rear fixing plate (5) and the front fixing plate (4). The two ends of the fan blade (8) are respectively located in the corresponding limiting holes (6) of the front fixing plate (4) and the rear fixing plate (5). A fixing baffle (9) is provided at the other end of the fan blade (8) on the front fixing plate (4). A first through hole is provided on the fixing baffle (9). Second through holes are provided at positions on both sides of each limiting hole (6) on the front fixing plate (4). The two first through holes provided on the fixing baffle (9) correspond to the positions of the second through holes on both sides of the limiting hole (6). A pin (10) is installed in the first through hole and the second through hole. A cavity is provided inside the pin (10). A slider (12) is installed in the cavity. A chute (14) is provided between the pin (10) and the cavity. A card slot (15) is provided inside the front fixing plate (4) at the position of the chute (14). A ball (11) is installed in the chute (14). A threaded rod (13) is installed at the central position of the pin (10). The threaded rod (13) is threadedly connected to the slider (12).

2. The pneumatic conveying device for a bag filter as described in claim 1, characterized in that: The threaded rod (13) is rotatably connected to the pin (10), and the threaded rod (13) is rotatably connected to the bottom of the cavity.

3. The pneumatic conveying device for a bag filter as described in claim 1, characterized in that: On the side of the annular housing (1) close to the front fixing plate (4), a front cover plate (18) is installed. The front cover plate (18) is composed of two symmetric semi-circular rings. The front fixing plate (4) is annular. A plurality of first fixing beams (17) are evenly installed on the inner side of the annular housing (1). The other end of the first fixing beam (17) is installed with an air inlet pipe (3). The air inlet pipe (3), the front cover plate (18) and the front fixing plate (4) are on the same central axis. The first fixing beam (17) is between the front fixing plate (4) and the front cover plate (18). The outer wall of the air inlet pipe (3) and the inner wall of the front cover plate (18) are in a shape-fitting relationship.

4. The pneumatic conveying device for a bag filter as described in claim 1, wherein: A front cover plate (18) and a rear cover plate (19) are installed on both sides of the annular housing. An air outlet is provided on one side of the annular housing (1). The air outlet is between the front cover plate (18) and the rear cover plate (19). An air outlet pipe (2) is installed at the position of the air outlet of the annular housing (1).

5. The pneumatic conveying device for a bag filter as described in claim 1, characterized in that: On the side of the annular housing (1) close to the rear fixing plate (5), a rear cover plate (19) is installed. A motor (7) is fixedly installed on the side of the rear cover plate (19) away from the rear fixing plate (5). A connector is installed between the output end of the motor (7) and the rear fixing plate (5).

6. The pneumatic conveying device for a bag filter as described in claim 1, wherein: The diameter of the pin (10) is the same as the diameters of the first through hole and the second through hole. The diameter of the opening of the chute (14) on the surface of the pin (10) is smaller than the diameter of the ball (11). The part of the slider (12) connected to the ball (11) is conical, and the slider (12) is slidably connected to the cavity.

7. The pneumatic conveying device for a bag filter as described in claim 1, characterized in that: A plurality of second fixed beams (16) are evenly installed between the front fixed plate (4) and the rear fixed plate (5).

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