A positive pressure pneumatic conveying device for powdered materials

Abstract

The utility model relates to the technical field of pneumatic conveying of powder materials, and in particular to a positive-pressure pneumatic conveying device for powder materials, comprising a base, two brackets are fixedly connected to the top of the base, a storage tank is fixedly connected to the middle parts of the two brackets, a feed pipe is fixedly connected to the top of the storage tank, a discharge pipe is fixedly connected to the bottom of the storage tank, a hollow block is fixedly connected to one side of the discharge pipe, the other end of the hollow block is fixedly connected to the storage tank, a motor is fixedly connected to the inside of the hollow block, a vibration mechanism is connected to the output end of the motor, a scraping mechanism is connected to one side of the vibration mechanism, a filter plate is placed inside the discharge pipe, the vibration mechanism corresponds to one side of the filter plate, the scraping mechanism corresponds to the top of the filter plate, and the bottom of the discharge pipe is connected to a conveying pipeline. The utility model has the characteristics of strong practicality and vibration.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic conveying of powder materials, in particular to a positive-pressure pneumatic conveying device for powder materials. Background Art

[0002] In industrial production, pneumatic conveying of powdered materials is a common and efficient material transmission method. However, powder blockage is a common problem in the process of pneumatic conveying. Blockage will not only affect the conveying efficiency, but may also cause equipment failure and even threaten production safety. The prior art usually uses a scraping mechanism to clean the surface of the filter. Although this method can alleviate the blockage problem to a certain extent, it still has some limitations. Specifically, the holes of the filter are also very easy to be blocked by powder. Due to the small space in the hole and the large friction between the powder particles, once the powder enters the hole, it is difficult to completely remove it through the scraping mechanism on the surface. Over a long period of time, more and more powder will be blocked in the hole, seriously affecting the filtering effect and even causing the filter to fail. Therefore, in order to solve this problem, we propose a vibrating positive pressure pneumatic conveying device.

[0003] The prior art discloses a positive pressure pneumatic conveying device for powdered materials with application number: CN202321571325.6, including a storage tank, and a discharge pipe is connected to the bottom of the storage tank. The utility model is provided with an anti-blocking component. When the driving shaft drives the clapper to break up the material, the driving shaft drives the active bevel gear to rotate, and when the active bevel gear rotates, it drives the driven bevel gear to rotate, and the driven bevel gear drives the movable shaft to rotate, and when the movable shaft rotates, it drives the turntable to rotate, and after the turntable rotates, it drives the rotating plate to move, and the rotating plate pushes the slide to move, and the slide drives the connecting rod to move, and the connecting rod drives the push plate to move, so that the push plate can push the material on the filter to move, and avoid the material from accumulating at a fixed position on the filter, and as the turntable continues to rotate, the rotating plate drives the slide to reset, thereby driving the push plate to reset and move.

[0004] The existing technology mainly prevents the filter from being blocked by scraping the filter back and forth, but scraping can only remove the powder above the filter, and some powder will be blocked inside the small holes of the filter, which will also affect the transmission effect.

[0005] Therefore, it is necessary to design a positive pressure pneumatic conveying device for powdered materials which is practical and vibratory. Utility Model Content

[0006] The purpose of the utility model is to provide a positive pressure pneumatic conveying device for powdery materials to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a positive-pressure pneumatic conveying device for powdered materials, comprising a base, two brackets are fixedly connected to the top of the base, a storage tank is fixedly connected to the middle parts of the two brackets, a feed pipe is fixedly connected to the top of the storage tank, a discharge pipe is fixedly connected to the bottom of the storage tank, a hollow block is fixedly connected to one side of the discharge pipe, the other end of the hollow block is fixedly connected to the storage tank, a motor is fixedly connected to the inside of the hollow block, a vibration mechanism is connected to the output end of the motor, a scraping mechanism is connected to one side of the vibration mechanism, a filter plate is placed inside the discharge pipe, the vibration mechanism corresponds to one side of the filter plate, the scraping mechanism corresponds to the top of the filter plate, the bottom of the discharge pipe is connected to a conveying pipe, a fan is placed on the top of the base, and the fan is connected to the conveying pipe.

[0008] According to the above technical solution, the vibration mechanism includes a rotating shaft, which is rotatably connected to the output end of the motor, a round block is fixedly connected to one side of the rotating shaft, two support seats are connected to the inner bottom of the hollow block, an impact rod is connected to the inside of the support seat, a first spring is provided on the outside of the impact rod, a pulley is fixedly connected to one side of the impact rod, a circular groove is provided inside the round block, the pulley corresponds to the circular groove, and one end of the impact rod corresponds to the filter plate.

[0009] According to the above technical solution, the rotating shaft and the round block are eccentrically connected.

[0010] According to the above technical solution, the support seat and the hollow block on one side are fixedly connected and slidably connected to the impact rod, the support seat and the hollow block on the other side are slidably connected and fixedly connected to the impact rod, one end of the first spring is fixedly connected to the support seat, and the other end of the first spring is fixedly connected to the pulley.

[0011] According to the above technical solution, the scraping mechanism includes a first pulley, which is fixedly connected to a rotating shaft, a second pulley is provided on one side of the first pulley, belts are sleeved on the outer sides of the first pulley and the second pulley, a vertical rod is fixedly connected to the inside of the second pulley, the vertical rod is rotatably connected to the inside of the hollow block, a first gear is fixedly connected to the bottom of the vertical rod, a second gear is meshedly connected to one side of the first gear, a rocker is fixedly connected to the bottom of the second gear, a scraper is rotatably connected to the other end of the rocker, and the scraper is located on the top of the filter plate.

[0012] According to the above technical solution, a rotating rod is fixedly connected to the top of the first gear, and the rotating rod is rotatably connected to the second gear.

[0013] According to the above technical solution, a square groove is provided inside the discharge pipe, and the filter plate and the square groove are slidably connected.

[0014] According to the above technical solution, three second springs are fixedly connected inside one side of the square groove, the other end of the second spring is fixedly connected to the filter plate, and the impact rod passes through the discharge pipe and extends to the inside of the square groove.

[0015] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0016] (1) By providing a scraping mechanism, the scraper can scrape the surface of the filter back and forth under the drive of the reciprocating mechanism, preventing powder from accumulating on the surface of the filter, preventing clogging, and improving the filtering efficiency;

[0017] (2) By providing a vibration mechanism, the filter screen can vibrate, which can loosen and fall off the powder inside the small holes of the filter screen, further improving the anti-clogging effect of the device and improving work efficiency;

[0018] (3) By providing a motor, the device can achieve the effects of scraping and vibrating at the same time with only one motor, which simplifies the device and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a partial three-dimensional schematic diagram of the utility model;

[0021] Figure 3 It is a three-dimensional schematic diagram of the vibration mechanism and scraping mechanism of the utility model;

[0022] Figure 4 It is a partial three-dimensional schematic diagram of the utility model;

[0023] Figure 5 It is a partial three-dimensional schematic diagram of the utility model;

[0024] Figure 6 It is a schematic diagram of the filter plate and the second spring of the utility model;

[0025] In the figure: 1. base; 11. bracket; 12. storage tank; 13. feed pipe; 14. discharge pipe; 15. hollow block; 16. square trough; 17. conveying pipeline; 18. fan; 2. motor; 21. rotating shaft; 22. round block; 23. impact rod; 24. first spring; 25. pulley; 26. support seat; 3. first pulley; 31. second pulley; 32. belt; 33. vertical rod; 34. first gear; 35. second gear; 36. rotating rod; 37. rocker; 4. filter plate; 41. scraper; 42. second spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-6 The utility model provides a technical solution: a positive pressure pneumatic conveying device for powdered materials, comprising a base 1, two brackets 11 are fixedly connected to the top of the base 1, a storage tank 12 is fixedly connected to the middle of the two brackets 11, a feed pipe 13 is fixedly connected to the top of the storage tank 12, a discharge pipe 14 is fixedly connected to the bottom of the storage tank 12, a hollow block 15 is fixedly connected to one side of the discharge pipe 14, the other end of the hollow block 15 is fixedly connected to the storage tank 12, a motor 2 is fixedly connected to the inside of the hollow block 15, a vibration mechanism is connected to the output end of the motor 2, a scraping mechanism is connected to one side of the vibration mechanism, a filter plate 4 is placed inside the discharge pipe 14, the vibration mechanism corresponds to one side of the filter plate 4, and the scraping mechanism and the filter plate 4 correspond to each other. Corresponding to the top of the base 1, the bottom of the discharge pipe 14 is connected to a conveying pipe 17, and a fan 18 is placed on the top of the base 1, and the fan 18 is connected to the conveying pipe 17; when the staff is ready to start the conveying work, the staff adds the material into the storage tank 12 through the feed pipe 13, and when the material needs to be conveyed, the device is turned on, and the material falls into the inside of the discharge pipe 14, and there will be a clapper to scatter it when it falls. At this time, the staff turns on the motor 2, and the vibration mechanism will vibrate the filter plate 4, and the scraping mechanism will scrape the powder accumulated on the top of the filter plate 4. When the powder falls into the conveying pipe 17, the staff starts the fan 18, and then the material can be conveyed. The device is provided with a vibration mechanism and a scraping mechanism, which can achieve the thorough removal of the powder in the hole and on the surface of the filter plate 4, effectively prevent the clogging problem of the filter plate 4, and ensure the continuity and stability of material transportation. The device only uses one motor 2, and completes the vibration and scraping movements at the same time, simplifies the device, and saves costs.

[0028] The vibration mechanism includes a rotating shaft 21, which is rotatably connected to the output end of the motor 2, a round block 22 is fixedly connected to one side of the rotating shaft 21, two support seats 26 are connected to the inner bottom of the hollow block 15, a striking rod 23 is connected inside the support seat 26, a first spring 24 is arranged outside the striking rod 23, a pulley 25 is fixedly connected to one side of the striking rod 23, a circular groove is provided inside the round block 22, the pulley 25 corresponds to the circular groove, and one end of the striking rod 23 corresponds to the filter plate 4; when the staff turns on the motor 2, the rotating shaft 21 is fixedly connected to the output end of the motor 2, a round block 22 is fixedly connected to the output end of the motor 2, and ... 21 rotates, and the round block 22 rotates, and the pulley 25 is inside the round block 22. When the round block 22 rotates, the wheel of the pulley 25 also rotates, so relatively speaking, the vertical position of the pulley 25 remains stationary, because when the round block 22 rotates, it moves left and right, and at this time, it moves the pulley 25 left and right, and the pulley 25 moves the impact rod 23 left and right, so that one end of the impact rod 23 extends into the inside of the feed pipe 13, and repeatedly installs one side of the internal filter plate 4, so that the filter plate 4 can vibrate. By providing a vibration mechanism, during the vibration process, the powder accumulated inside the small holes of the filter plate 4 will also be vibrated down, which can prevent blockage to the greatest extent and ensure the conveying efficiency.

[0029] The rotating shaft 21 and the round block 22 are eccentrically connected; that is, one end of the rotating shaft 21 is not connected to the center of the round block 22, but is connected to the side end of the center, so that the round block 22 is equivalent to a cam. When rotating, when the small area part rotates to the vicinity of the pulley 25, it pushes the pulley 25 to the left. At this time, the first spring 24 is compressed and there is a rebound force. When the large area part rotates to the vicinity of the pulley 25, it no longer pushes the pulley 25. At this time, the rebound force of the first spring 24 pushes the pulley 25 back to its original position, thereby realizing the left and right movement of the pulley 25, which can complete the vibration movement and improve the transportation efficiency of the device.

[0030] One side support seat 26 is fixedly connected to the hollow block 15 and is slidably connected to the impact rod 23. The other side support seat 26 is slidably connected to the hollow block 15 and is fixedly connected to the impact rod 23. One end of the first spring 24 is fixedly connected to the support seat 26, and the other end of the first spring 24 is fixedly connected to the pulley 25. When the pulley 25 moves to the left, the pulley 25 moves to the left with the fixedly connected impact rod 23. At this time, the right side fixedly connected support seat 26 also moves to the left and slides to the left inside the hollow block 15. At this time, the left side support seat 26 does not move, the impact rod 23 slides to the left inside it, and the middle first spring 24 is compressed.

[0031] The scraping mechanism comprises a first pulley 3, which is fixedly connected to the rotating shaft 21, a second pulley 31 is arranged on one side of the first pulley 3, a belt 32 is sleeved on the outer sides of the first pulley 3 and the second pulley 31, a vertical rod 33 is fixedly connected to the inside of the second pulley 31, the vertical rod 33 is rotatably connected to the inside of the hollow block 15, a first gear 34 is fixedly connected to the bottom of the vertical rod 33, a second gear 35 is meshedly connected to one side of the first gear 34, a rocker 37 is fixedly connected to the bottom of the second gear 35, and a scraper 41 is rotatably connected to the other end of the rocker 37, and the scraper 41 is located on the top of the filter plate 4; when the staff turns on the motor 2 and the rotating shaft 21 rotates, The first pulley 3 rotates accordingly, and under the transmission of the belt 32, the second pulley 31 also rotates, because the vertical rod 33 and the hollow block 15 are rotatably connected, so at this time the second pulley 31 and the vertical rod 33 will rotate, so that the first gear 34 fixedly connected at the bottom will rotate, the second gear 35 will also rotate on the outer ring of the first gear 34, and the rocker 37 will also rotate. As the second gear 35 rotates to the left and right sides of the first gear 34, which are the closest and farthest positions respectively, the rocker 37 moves the scraper 41 to the far left and right sides, and the first gear 34 rotates in circles, so the scraper 41 moves back and forth to scrape the top of the filter plate 4. By providing a scraping mechanism, the device can scrape the powder on the top of the filter plate 4 to prevent excessive accumulation and affect the filtering effect.

[0032] A rotating rod 36 is fixedly connected to the top of the first gear 34, and the rotating rod 36 is rotatably connected to the second gear 35; the rotating rod 36 plays a certain connecting role, so that the first gear 34 and the second gear 35 can be connected together, and the rotating rod 36 and the first gear 34 are fixedly connected, that is, the rotation of the rotating rod 36 is the rotation of the first gear 34, and the second gear 35 and the rotating rod 36 are rotatably connected, so that the second gear 35 can rotate on the outer ring of the first gear 34. By adding two gears in the reciprocating motion, the entire motion process is made smoother.

[0033] A square groove 16 is provided inside the discharge pipe 14, and the filter plate 4 is slidably connected to the square groove 16; the filter plate 4 is inside the square groove 16, but a certain gap is left between the two sides of the filter plate 4 and the square groove 16, so as to place the second spring 42, and there is another side where the impact rod 23 extends inside to impact it.

[0034] Three second springs 42 are fixedly connected inside one side of the square groove 16, and the other end of the second spring 42 is fixedly connected to the filter plate 4. The impact rod 23 passes through the discharge pipe 14 and extends to the inside of the square groove 16; when the impact rod 23 moves to the left, the filter plate 4 is pushed to the left, and the second spring 42 is compressed at this time, and there is a rebound force. Then the impact rod 23 moves to the right, and the impact rod 23 no longer pushes the filter plate 4. The rebound force of the second spring 42 pushes the filter plate 4 to its original position. In this way, the filter plate 4 vibrates by repeated impacts left and right, so that the powder in the holes of the filter plate 4 can also be cleared to ensure the conveying efficiency.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A positive pressure pneumatic conveying device for powdered materials, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to two brackets (11), the middle of the two brackets (11) is fixedly connected to a storage tank (12), the top of the storage tank (12) is fixedly connected to a feed pipe (13), the bottom of the storage tank (12) is fixedly connected to a discharge pipe (14), one side of the discharge pipe (14) is fixedly connected to a hollow block (15), the other end of the hollow block (15) is fixedly connected to the storage tank (12), and the inside of the hollow block (15) is fixedly connected to A motor (2), wherein the output end of the motor (2) is connected to a vibration mechanism, one side of the vibration mechanism is connected to a scraping mechanism, a filter plate (4) is placed inside the discharge pipe (14), the vibration mechanism corresponds to one side of the filter plate (4), the scraping mechanism corresponds to the top of the filter plate (4), the bottom of the discharge pipe (14) is connected to a conveying pipe (17), and a fan (18) is placed on the top of the base (1), and the fan (18) is connected to the conveying pipe (17).

2. A positive pressure pneumatic conveying device for powdered materials according to claim 1, characterized in that: The vibration mechanism comprises a rotating shaft (21), the rotating shaft (21) is rotatably connected to the output end of the motor (2), a round block (22) is fixedly connected to one side of the rotating shaft (21), two support seats (26) are connected to the inner bottom of the hollow block (15), an impact rod (23) is connected inside the support seat (26), a first spring (24) is arranged on the outer side of the impact rod (23), a pulley (25) is fixedly connected to one side of the impact rod (23), a circular groove is provided inside the round block (22), the pulley (25) corresponds to the circular groove, and one end of the impact rod (23) corresponds to the filter plate (4).

3. A positive pressure pneumatic conveying device for powdered materials according to claim 2, characterized in that: The rotating shaft (21) and the round block (22) are eccentrically connected.

4. A positive pressure pneumatic conveying device for powdered materials according to claim 2, characterized in that: The support seat (26) on one side is fixedly connected to the hollow block (15) and is slidably connected to the impact rod (23), and the support seat (26) on the other side is slidably connected to the hollow block (15) and is fixedly connected to the impact rod (23), one end of the first spring (24) is fixedly connected to the support seat (26), and the other end of the first spring (24) is fixedly connected to the pulley (25).

5. A positive pressure pneumatic conveying device for powdered materials according to claim 2, characterized in that: The scraping mechanism comprises a first pulley (3), the first pulley (3) is fixedly connected to a rotating shaft (21), a second pulley (31) is arranged on one side of the first pulley (3), a belt (32) is sleeved on the outer sides of the first pulley (3) and the second pulley (31), a vertical rod (33) is fixedly connected inside the second pulley (31), the vertical rod (33) is rotatably connected to the inside of the hollow block (15), a first gear (34) is fixedly connected to the bottom of the vertical rod (33), a second gear (35) is meshedly connected to one side of the first gear (34), a rocker (37) is fixedly connected to the bottom of the second gear (35), the other end of the rocker (37) is rotatably connected to a scraper (41), and the scraper (41) is located on the top of the filter plate (4).

6. A positive pressure pneumatic conveying device for powdered materials according to claim 5, characterized in that: A rotating rod (36) is fixedly connected to the top of the first gear (34), and the rotating rod (36) is rotatably connected to the second gear (35).

7. A positive pressure pneumatic conveying device for powdered materials according to claim 2, characterized in that: A square groove (16) is provided inside the discharge pipe (14), and the filter plate (4) and the square groove (16) are slidably connected.

8. A positive pressure pneumatic conveying device for powdered materials according to claim 7, characterized in that: Three second springs (42) are fixedly connected inside one side of the square groove (16), and the other end of the second spring (42) is fixedly connected to the filter plate (4). The impact rod (23) passes through the discharge pipe (14) and extends to the inside of the square groove (16).

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