Pneumatic conveying device

Abstract

The invention relates to a pneumatic conveying device, and belongs to the technical field of conveying equipment, the pneumatic conveying device comprises a shell, a feeding port is formed in the upper end of the shell, a dispersing mechanism is arranged in the shell, an air inlet is formed in one side of the lower end of the shell, a conveying pipe is arranged on the other side of the lower end of the shell, and a storage bin is connected to the end, away from the shell, of the conveying pipe; the dispersing mechanism comprises a smashing assembly and an air blowing assembly which are sequentially arranged from top to bottom. The conveying device has the effects of preventing materials from caking and improving the material conveying effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of conveying equipment, in particular to a pneumatic conveying device. BACKGROUND

[0002] Pneumatic conveying, also known as airflow conveying, is a specific application of fluidization technology, which utilizes the energy of airflow to convey particulate materials in a closed pipeline along the airflow direction. The pneumatic conveying device has simple structure and is convenient to operate, and can be used for horizontal, vertical or inclined conveying.

[0003] During the conveying process, the material flows with the airflow, and is usually composed of particles. However, the particles are prone to form clumps during humidification and bonding, which makes it difficult to achieve the conveying requirements of the pneumatic conveying. SUMMARY

[0004] In order to prevent material clumping and improve material conveying effect, the present application provides a pneumatic conveying device.

[0005] The pneumatic conveying device provided by the present application adopts the following technical scheme: A pneumatic conveying device, comprising a shell, a feed inlet is arranged at the upper end of the shell, a dispersing mechanism is arranged inside the shell, an air inlet is arranged at one side of the lower end of the shell, a conveying pipe is arranged at the other side of the lower end of the shell, a storage bin is connected to the end of the conveying pipe away from the shell, and the dispersing mechanism comprises a crushing assembly and a blowing assembly arranged in sequence from top to bottom.

[0006] By adopting the above technical scheme, the material enters the inside of the shell from the feed inlet, and falls to the lower part after passing through the crushing assembly. The crushing assembly breaks the clumps in the material into particles, and then the blowing assembly blows away the particles, so that the material will not clump and will be conveniently conveyed. The material after crushing and blowing enters the conveying pipe and then enters the storage bin, so that the material can be quickly and smoothly conveyed, reducing the requirements of pneumatic conveying and improving the conveying efficiency.

[0007] Optionally, the crushing assembly comprises two moving plates arranged in the shell, the ends of the two moving plates away from the feed inlet are close to each other, a plurality of rows of vibrating plates are arranged on the opposite sides of the two moving plates, the vibrating plates on the two moving plates are arranged alternately, a driving assembly for driving the moving plates to move is further arranged on the shell, and an electric resistance wire is further arranged in the moving plate.

[0008] By adopting the above technical scheme, when the material falls between the two moving plates, the driving assembly drives the two moving plates to move towards each other and reciprocally, so that the vibrating plates crush the material and disperse the material on the entire moving plate, thereby avoiding the material from clumping due to accumulation, and the electric resistance wire on the moving plate further dries the material to further reduce the possibility of material clumping.

[0009] Optionally, the driving assembly comprises a moving rod arranged on the moving plate, the moving rod is in sliding connection with the shell, one end of the moving rod in the shell is provided with a connecting rod, the shell is rotationally connected with a rotating rod, a curve-shaped driving slot is formed in the outer side of the rotating rod, the connecting rod is inserted and slid in the driving slot, the connecting rod is hollow and internally provided with a driving fan, and the connecting rod is in communication with the air blowing assembly.

[0010] By adopting the above technical scheme, the air blowing assembly introduces gas into the inside of the connecting rod, the gas drives the driving fan to rotate, the driving fan drives the rotating rod to rotate, the driving slot on the rotating rod drives the connecting rod to reciprocate, thereby driving the moving rod and the moving plate to move, the moving directions of the two moving rods are opposite, thereby realizing the action of the moving plate rubbing the materials.

[0011] Optionally, the rotating shaft is fixed on the vibrating plate, the rotating shaft penetrates through the moving plate and is rotationally connected with the moving plate, a driven gear is fixedly connected on the rotating shaft, and a fixed rack is fixedly connected on the shell, and the driven gear is in meshing connection with the fixed rack.

[0012] By adopting the above technical scheme, the rotating shaft moves synchronously with the moving plate, the driven gear rotates along the fixed rack in the moving process of the rotating shaft, thereby making the rotating shaft rotate, and further driving the vibrating plate to rotate, in the reciprocating movement of the moving plate, the vibrating plate also reciprocates, thereby being capable of dispersing the materials and reducing the possibility of the materials being blocked between the two moving plates.

[0013] Optionally, the air blowing assembly comprises an air blowing pipe arranged below the moving plate, a plurality of air injection holes are formed in the air blowing pipe, the air blowing pipe is rotationally connected with the shell, the shell is internally provided with a connecting pipe connecting the air blowing pipe and the rotating rod, and the air blowing pipe is also provided with a driving fan inside.

[0014] By adopting the above technical scheme, the air injection holes on the air blowing pipe inject gas to scatter and fly the falling materials, thereby reducing the possibility of the materials being caked and facilitating the movement of the materials along the gas flow, and in the gas flow process, the driving fan is driven to rotate, and the driving fan further drives the air blowing pipe to rotate.

[0015] Optionally, the lower end of the moving plate is provided with a supporting rod, and the end of the supporting rod is provided with a brush abutting against the side wall of the air blowing pipe.

[0016] By adopting the above technical scheme, in the rotating process of the air blowing pipe, the brush cleans the surface of the air blowing pipe, thereby reducing the possibility of the materials adhering to the air blowing pipe.

[0017] Optionally, the horizontal section of the conveying pipe is internally provided with a conveying pipe, a plurality of air blowing nozzles are arranged on the conveying pipe, the air blowing nozzles are arranged in the same direction as the airflow in the conveying pipe, the curved section of the conveying pipe is internally provided with an elastic film, the conveying pipe is internally provided with a fixing block for fixing the edge of the elastic film, a gap is arranged between the elastic film and the inner wall of the conveying pipe, and an elastic supporting block is further arranged at the gap and connected with the elastic film and the conveying pipe.

[0018] By adopting the above technical scheme, the air blowing nozzles provide power for the material in the horizontal section, thereby reducing the possibility of the material falling into the conveying pipe, and the material impacts the elastic film in the curved section of the conveying pipe, thereby avoiding the direct impact of the material on the conveying pipe and wear of the conveying pipe, the gap between the elastic film and the conveying pipe enables the elastic film to have a certain deformation amount, the supporting block supports the elastic film, thereby buffering the impact of the material, and the gas inlet hole can provide pulse gas to the elastic film, thereby shaking off the material adhered to the elastic film.

[0019] Optionally, the storage bin is further internally provided with a spiral-shaped discharging plate, one end of the discharging plate is connected with the conveying pipe, the other end is communicated to the bottom of the storage bin, and the connecting portion of the conveying pipe and the storage bin is provided with a flow blocking assembly.

[0020] By adopting the above technical scheme, the material passes through the flow blocking assembly of the conveying pipe, thereby reducing the flow rate of the material and enabling the material to fall in a concentrated manner, thereby reducing the possibility of segregation of the material, and then the material flows along the discharging plate and is guided by the discharging plate, thereby reducing the segregation of the material when falling, and thereby ensuring the anti-segregation of the material in the storage bin.

[0021] Optionally, the flow blocking assembly comprises a connecting pipe connected with the conveying pipe and the discharging plate, a rubber bag is arranged in the connecting pipe, a plurality of openings are arranged on the rubber bag, and the connecting pipe is partially provided in a spiral shape and connected with the discharging plate.

[0022] By adopting the above technical scheme, when the material enters the inside of the connecting pipe, the rubber bag blocks the flow of the material, and then the material flows out through the openings, at this time, the flow rate of the material has been reduced, and the parts with different weights in the material are mixed and discharged.

[0023] In summary, the present application has at least one of the following beneficial technical effects: After the crushing assembly and the air blowing assembly, the material is broken and blown away, so that the material will not be caked, facilitating the conveying, thereby reducing the requirement of pneumatic conveying and improving the conveying efficiency; The elastic film buffers the impact of the material on the bending part of the conveying pipe, the gas inlet hole can provide pulse gas to the elastic film, thereby shaking off the material adhered to the elastic film, and thereby prolonging the service life of the conveying pipe; When the material enters the inside of the connecting pipe, the rubber bag blocks the flow of the material, and then the material flows out through the opening, at this time, the material has reduced flow rate, and the light and heavy parts in the material are mixed and discharged, after the material enters the discharge plate, the material flows to the bottom of the storage bin along the discharge plate, thereby improving the effect of preventing the material from being separated. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the embodiment of the application.

[0025] Figure 2 is a schematic diagram of the internal structure of the shell of the embodiment of the application.

[0026] Figure 3 is a schematic diagram of the structure of the driving assembly of the embodiment of the application.

[0027] Figure 4 is a schematic diagram of the internal structure of the conveying pipe of the embodiment of the application.

[0028] Figure 5 is a schematic diagram of the structure of the flow blocking assembly and the storage bin of the embodiment of the application.

[0029] BRIEF DESCRIPTION OF DRAWINGS: 1, shell; 11, feed inlet; 2, crushing assembly; 21, moving plate; 22, vibrating plate; 23, rotating shaft; 24, driven gear; 25, fixed rack; 3, air blowing assembly; 31, air blowing pipe; 32, air injection hole; 33, connecting pipe; 4, driving assembly; 41, moving rod; 42, connecting rod; 43, rotating rod; 44, driving groove; 5, storage bin; 6, conveying pipe; 61, air blowing nozzle; 62, elastic membrane; 63, fixed block; 64, supporting block; 65, air injection hole; 7, discharge plate; 8, flow blocking assembly; 81, connecting pipe; 82, rubber bag; 83, opening. DETAILED DESCRIPTION

[0030] The application will be further described in detail below with reference to the accompanying drawings.

[0031] The embodiment of the application discloses a pneumatic conveying device. Figure 1 and Figure 2 The pneumatic conveying device comprises a shell 1, a feed inlet 11 is arranged at the upper end of the shell 1, a dispersing mechanism is arranged in the shell 1, an air inlet is arranged at one side of the lower end of the shell 1, a conveying pipe 6 is arranged at the other side of the lower end of the shell 1, a storage bin 5 is connected to the end of the conveying pipe 6 away from the shell 1, and the dispersing mechanism comprises, from top to bottom, a crushing assembly 2 and an air blowing assembly 3.

[0032] The material enters the inside of the shell 1 from the feed inlet 11, and the material falls to the lower part through the crushing assembly 2, the crushing assembly 2 breaks the lumps in the material into particles, and then the blowing assembly 3 blows the particles away, so that the lumps in the material are crushed and scattered, the particles are driven to flow by the airflow, and enter the storage bin 5, so that the material can be quickly and smoothly conveyed.

[0033] The crushing assembly 2 comprises two moving plates 21 arranged in the shell 1, the two moving plates 21 are arranged in a bent manner at one end close to the feed inlet 11 and are away from each other, the two moving plates 21 are arranged in parallel at the other end away from the feed inlet 11, and a plurality of rows of vibration plates 22 are arranged on the opposite sides of the two moving plates 21, the vibration plates 22 on the two moving plates 21 are arranged in a staggered manner, the shell 1 is further provided with a driving assembly 4 for driving the moving plates 21 to move, and a resistance wire is further arranged in the moving plate 21.

[0034] When the material falls between the two moving plates 21, the driving assembly 4 drives the two moving plates 21 to move towards each other and reciprocate, so that the vibration plates 22 crush the material, and the material is dispersed on the entire moving plate 21 by the vibration plates 22 on the moving plate 21, thereby avoiding the accumulation and lumping of the material, and the resistance wire on the moving plate 21 dries the material to avoid the lumping of the particles again.

[0035] Referring to Figure 2 and Figure 3 , the driving assembly 4 comprises a moving rod 41 fixed on the moving plate 21, the moving rod 41 is in sliding connection with the shell 1, one end of the moving rod 41 in the shell 1 is fixed with a connecting rod 42 perpendicular to the moving rod 41, a rotating rod 43 is rotatably connected to the shell 1, a curve-shaped driving groove 44 is formed on the outer side of the rotating rod 43, the connecting rod 42 is inserted and slides in the driving groove 44, the connecting rod 42 is hollow and internally provided with a driving fan, one end of the connecting rod 42 is in communication with the blowing assembly 3, and the other end is in communication with the outside.

[0036] The blowing assembly 3 introduces gas into the inside of the connecting rod 42, the gas drives the driving fan to rotate, the driving fan drives the rotating rod 43 to rotate, the driving groove 44 on the rotating rod 43 drives the connecting rod 42 to reciprocate, thereby driving the moving rod 41 and the moving plate 21 to move, the moving directions of the moving rods 41 on the two moving plates 21 are opposite, thereby realizing the action of the moving plate 21 rubbing the material.

[0037] The vibration plate 22 is fixed with a rotating shaft 23, the rotating shaft 23 penetrates through the moving plate 21 and is in rotational connection with the moving plate 21, a driven gear 24 is fixedly connected to the rotating shaft 23, and a fixed rack 25 is fixedly connected to the shell 1, the driven gear 24 is in meshing connection with the fixed rack 25.

[0038] The rotating shaft 23 moves synchronously with the movable plate 21. During the movement of the rotating shaft 23, the driven gear 24 rotates along the fixed rack 25, thereby rotating the rotating shaft 23, and then driving the vibration plate 22 to rotate. During the reciprocating movement of the movable plate 21, the vibration plate 22 also swings back and forth, thereby dispersing the material and reducing the possibility of the material being blocked between the two movable plates 21.

[0039] The blowing assembly 3 includes an air blowing pipe 31 arranged below the movable plate 21. A plurality of air jet holes 32 are provided on the air blowing pipe 31. The air blowing pipe 31 is rotatably connected to the shell 1. A connecting pipe 8133 connecting the air blowing pipe 31 and the rotating rod 43 is also provided inside the shell 1. The connecting pipe 8133 is rotatably connected to the air blowing pipe 31 and the rotating rod 43 at the same time. A driving fan is also installed inside the air blowing pipe 31.

[0040] The air jet holes 32 on the air blowing pipe 31 eject gas to scatter the fallen materials, thereby reducing the possibility of material agglomeration and facilitating the movement of the materials with the air flow. During the gas flow process, the driving fan is driven to rotate, and the driving fan further drives the air blowing pipe 31 to rotate.

[0041] A support rod is detachably mounted on the lower end of the movable plate 21. A brush is mounted on the end of the support rod, which abuts against the sidewall of the blow pipe 31. As the blow pipe 31 rotates, the brush cleans the surface of the blow pipe 31, thereby reducing the possibility of material adhering to the blow pipe 31. In this embodiment, the support rod and brush are not shown.

[0042] Reference Figure 1 and Figure 4 A delivery pipe 6 is installed inside the horizontal section of the delivery pipe 6, and a plurality of air blowing nozzles 61 are installed on the delivery pipe 6. The air blowing nozzles 61 have the same air flow direction as that in the delivery pipe 6. An elastic membrane 62 is provided inside the curved section of the delivery pipe 6. Grooves located at both ends of the elastic membrane 62 are provided on the inner wall of the delivery pipe 6. Both ends of the elastic membrane 62 are inserted into the grooves. There are also fixed blocks 63 with interference fit in the grooves. The fixed blocks 63 squeeze the elastic membrane 62 in the grooves. A gap is provided between the elastic membrane 62 and the inner wall of the delivery pipe 6. An elastic support block 64 is also provided in the gap. The support block 64 connects the elastic membrane 62 and the delivery pipe 6. An air delivery hole 65 facing the elastic membrane 62 is also provided on the delivery pipe 6.

[0043] The air blowing nozzle 61 provides power for the material in the horizontal section, thereby reducing the possibility of the material falling into the conveying pipe 6. At the same time, the material impacts the elastic membrane 62 in the curved section of the conveying pipe 6, preventing the material from directly impacting and wearing the conveying pipe 6. At the same time, the gap between the elastic membrane 62 and the conveying pipe 6 allows the elastic membrane 62 to have a certain deformation amount. The support block 64 supports the elastic membrane 62, thereby cushioning the impact of the material. The air supply hole 65 can provide pulsed gas to the elastic membrane 62, thereby shaking off the material adhering to the elastic membrane 62.

[0044] Referring to Figure 1 and Figure 5 The inside of the storage bin 5 is further spirally provided with a discharging plate 7, a section of the discharging plate 7 is provided in an arc shape, one end of the discharging plate 7 is connected with the conveying pipe 6, and the other end is communicated to the bottom of the storage bin 5, and the connecting position of the conveying pipe 6 and the storage bin 5 is provided with a flow blocking assembly 8. The material passes through the flow blocking assembly 8 at the conveying pipe 6, thereby reducing the flow rate of the material, so that the material is concentrated to fall, thereby reducing the possibility of material segregation, and then the material flows along the discharging plate 7 and is guided by the discharging plate 7, thereby reducing the segregation of the material when falling, thereby ensuring the anti-segregation work of the material in the storage bin 5.

[0045] The flow blocking assembly includes a connecting pipe 8133 connecting the conveying pipe 6 and the discharging plate 7, a rubber bag 82 is arranged in the connecting pipe 8133, a plurality of openings 83 are arranged on the rubber bag 82, the inside of the connecting pipe 8133 at a part position is provided in a spiral shape, and the connecting pipe 8133 is connected with the discharging plate 7. When the material enters the inside of the connecting pipe 8133, the rubber bag 82 blocks the flow of the material, and then the material flows out through the openings 83, at this time, the flow rate of the material has been reduced, and the parts with different weights in the material are mixed and discharged.

[0046] The implementation principle of the pneumatic conveying device in the embodiment of the present application is as follows: the material falls into the housing 1 through the feeding port 11 and falls to the crushing assembly 2, the material particles after the crushing assembly 2 are blown away by the blowing assembly 3, and then enter the conveying pipe 6, the flow rate of the particles is reduced by the flow blocking assembly 8 at the connecting pipe 8133, and then the particles enter the storage bin 5 along the discharging plate 7.

[0047] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A pneumatic conveying device, characterized in that: The invention comprises a shell (1), wherein a feed port (11) is provided at the upper end of the shell (1), a dispersion mechanism is provided inside the shell (1), an air inlet is provided at one side of the lower end of the shell (1), a conveying pipe (6) is provided at the other side of the lower end of the shell (1), and an end of the conveying pipe (6) away from the shell (1) is connected to a storage bin (5), and the dispersion mechanism comprises a crushing assembly (2) and an air blowing assembly (3) arranged in sequence from top to bottom.

2. A pneumatic conveying device according to claim 1, characterized in that: The crushing assembly (2) includes two movable plates (21) arranged in a shell (1), and the ends of the two movable plates (21) away from the feed port (11) are close to each other. The two movable plates (21) are provided with multiple rows of vibration plates (22) on opposite sides, and the vibration plates (22) on the two movable plates (21) are staggered. The shell (1) is also provided with a driving assembly (4) for driving the movable plates (21) to move, and a resistance wire is also provided in the movable plates (21).

3. A pneumatic conveying device according to claim 2, characterized in that: The driving assembly (4) includes a moving rod (41) arranged on the moving plate (21), the moving rod (41) is slidably connected to the shell (1), and one end of the moving rod (41) located in the shell (1) is provided with a connecting rod (42), and a rotating rod (43) is rotatably connected in the shell (1), and a curved driving groove (44) is provided on the outer side surface of the rotating rod (43), and the connecting rod (42) is inserted and slid in the driving groove (44). The connecting rod (42) is hollow and has a driving fan arranged inside. The connecting rod (42) is connected to the blowing assembly (3).

4. A pneumatic conveying device according to claim 3, characterized in that: A rotating shaft (23) is fixed on the vibration plate (22), the rotating shaft (23) passes through the movable plate (21) and is rotationally connected to the movable plate (21), a driven gear (24) is fixedly connected to the rotating shaft (23), a fixed rack (25) is fixedly connected to the housing (1), and the driven gear (24) is meshed with the fixed rack (25).

5. A pneumatic conveying device according to claim 4, characterized in that: The blowing assembly (3) comprises an air blowing pipe (31) arranged below the movable plate (21), a plurality of air injection holes (32) being provided on the air blowing pipe (31), the air blowing pipe (31) being rotatably connected to the housing (1), and a connecting pipe (81) (33) connecting the air blowing pipe (31) and the rotating rod (43) being further provided inside the housing (1), and a driving fan being also provided inside the air blowing pipe (31).

6. A pneumatic conveying device according to claim 5, characterized in that: A support rod is provided at the lower end of the movable plate (21), and a brush is provided at the end of the support rod, and the brush abuts against the side wall of the air blowing pipe (31).

7. A pneumatic conveying device according to claim 1, characterized in that: A delivery pipe (6) is provided inside the horizontal section of the delivery pipe (6), and a plurality of air blowing nozzles (61) are provided on the delivery pipe (6). The air blowing nozzles (61) have the same air flow direction as that in the delivery pipe (6). An elastic membrane (62) is provided inside the curved section of the delivery pipe (6), and a fixing block (63) for fixing the edge of the elastic membrane (62) is provided inside the delivery pipe (6). A gap is provided between the elastic membrane (62) and the inner wall of the delivery pipe (6), and an elastic support block (64) is further provided at the gap. The support block (64) connects the elastic membrane (62) and the delivery pipe (6), and an air delivery hole (65) facing the elastic membrane (62) is further provided on the delivery pipe (6).

8. A pneumatic conveying device according to claim 1, characterized in that: A blanking plate (7) is also spirally arranged inside the storage bin (5), one end of the blanking plate (7) is connected to the delivery pipe (6), and the other end is connected to the bottom of the storage bin (5), and a flow blocking component (8) is provided at the connection between the delivery pipe (6) and the storage bin (5).

9. A pneumatic conveying device according to claim 8, characterized in that: The retention assembly includes a connecting pipe (81) (33) connecting the conveying pipe (6) and the blanking plate (7), a rubber bag (82) is provided in the connecting pipe (81) (33), and a plurality of openings (83) are opened on the rubber bag (82), and the connecting pipe (81) (33) is partially arranged in a spiral shape and connected to the blanking plate (7).

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