Pneumatic conveying starting pipeline turbulence device

Abstract

The utility model discloses a pneumatic conveying starting pipeline turbulence device which comprises a conveying main pipe and a bypass pipeline, the top of the conveying main pipe is fixedly connected with a plurality of communicating pipes, the communicating pipes are all communicated with the bypass pipeline, and the circumferential outer wall of the bypass pipeline is fixedly connected with a plurality of second fixing frames. The tops of every two adjacent second fixing frames are fixedly connected with a shell, the bottom of each shell is fixedly connected with a connecting pipe, the connecting pipes are located over the communicating pipes and communicate with the bypass pipeline, and round pipes communicating with the connecting pipes are fixedly connected into the shells. According to the turbulent flow device, powder can be prevented from adhering to the inner wall of the communicating pipe to form a blocky barrier to influence air inlet, the using effect of the turbulent flow device is improved, the sliding rod can be prevented from moving downwards under the action of gravity, the using stability of the scraper is improved, the conveying main pipe and the bypass pipe can be stably connected, and the service life of the conveying main pipe is prolonged. And the use stability of the turbulence device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas-solid two-phase flow, in particular to a turbulent flow device for the starting pipeline of pneumatic conveying. Background Technique

[0002] Pneumatic conveying, also known as pneumatic conveying, uses the energy of air flow to convey granular materials along the air flow direction in a closed pipeline, which is a specific application of fluidization technology. A large amount of fly ash enters the pipeline in the starting pipeline, the solid-gas ratio of fly ash is relatively high and the flow rate is relatively low, and the suspension state is not formed. Therefore, turbulence needs to be generated in the starting pipeline.

[0003] After retrieval, a Chinese patent with the publication number CN203998109U discloses a turbulent flow device for the starting pipeline of pneumatic conveying. This device can well solve the problem that solid and gas cannot form a good mixture at low flow rates. However, when conveying powdery fluids, it is inevitable that a small amount of powder adheres to the inner wall of the ash pipe. If the adhered powder is not cleaned for a long time, the powder will agglomerate to form a block-shaped obstacle, which will greatly affect the air inlet effect of the conveying pipeline and thus affect the conveying efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art and to provide a turbulent flow device for the starting pipeline of pneumatic conveying.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A turbulent flow device for the starting pipeline of pneumatic conveying includes a conveying main pipe and a bypass pipeline. A plurality of connecting pipes are fixedly connected to the top of the conveying main pipe, and all the connecting pipes are communicated with the bypass pipeline. A plurality of second fixing frames are fixedly connected to the circumferential outer wall of the bypass pipeline. A housing is fixedly connected to the top of two adjacent second fixing frames. A connecting pipe is fixedly connected to the bottom of the housing, and the connecting pipe is located directly above the connecting pipe and is communicated with the bypass pipeline. A circular pipe communicated with the connecting pipe is fixedly connected inside the housing. A sliding rod extending into the connecting pipe is slidably connected inside the circular pipe, and the sliding rod can extend into the connecting pipe. A scraping plate for scraping the inner wall of the connecting pipe is fixedly connected to the bottom end of the sliding rod. A connecting component for driving the sliding rod to move is arranged on the circumferential outer wall of the circular pipe, and a locking component for fixing the sliding rod is arranged on the top of the housing.

[0007] As a further solution of the present utility model, the connection assembly includes a slip ring sleeved on the outer side of the round tube. A second avoidance opening is provided on one side of the round tube. A connection block that moves along the second avoidance opening is arranged in the second avoidance opening, and the connection block is fixed to the slip ring. A first avoidance opening is provided on one side of the housing. A push block that moves along the first avoidance opening is arranged in the first avoidance opening, and the push block is fixed to the slip ring.

[0008] As a further solution of the present utility model, the locking assembly is a knob. An avoidance hole is provided at the top of the housing. The sliding rod passes through the avoidance hole. A threaded column is fixedly connected to the top end of the sliding rod. The knob is threadedly connected to the threaded column.

[0009] As a further solution of the present utility model, a spring is sleeved on the circumferential outer wall of the round tube, and both ends of the spring are respectively fixed to the slip ring and the housing.

[0010] As a further solution of the present utility model, a sealing ring is fixedly connected to the circumferential outer wall of the sliding rod, and the sealing ring is in fit with the connecting pipe.

[0011] As a further solution of the present utility model, a corrugated soft plate for shielding and closing is arranged in the first avoidance opening, and the corrugated soft plate is fixed to the push block.

[0012] As a further solution of the present utility model, a plurality of first fixing frames are fixedly connected to the outer side of the main conveying pipe, and the first fixing frames are fixed to the bypass pipe.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. Through the combined use of the sliding rod and the scraping plate, when pulling the sliding rod downward, the sliding rod will drive the scraping plate to move downward, so that the scraping plate enters the communicating pipe, thereby scraping and cleaning the powder adhering to the inner wall of the communicating pipe, thus avoiding the formation of blocky obstacles on the inner wall of the communicating pipe due to powder adhesion, which affects the air intake, and improving the use effect of the turbulence device.

[0015] 2. Through the setting of the locking assembly, the locking assembly is used to lock and fix the sliding rod, thereby avoiding the downward movement of the sliding rod under the action of gravity, and improving the stability of the use of the scraping plate.

[0016] 3. Through the setting of the first fixing frame, the first fixing frame is used to connect the main conveying pipe and the bypass pipe, thereby stably connecting the main conveying pipe and the bypass pipe, and improving the stability of the use of the turbulence device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic perspective view of a pneumatic conveying starting pipeline turbulence device proposed by the present utility model;

[0018] Figure 2 The partial enlarged view I structural schematic diagram of a turbulent flow device for the starting pipeline of pneumatic conveying proposed by the present utility model;

[0019] Figure 3 The partial sectional view structural schematic diagram of a turbulent flow device for the starting pipeline of pneumatic conveying proposed by the present utility model;

[0020] Figure 4 The partial enlarged view II structural schematic diagram of a turbulent flow device for the starting pipeline of pneumatic conveying proposed by the present utility model;

[0021] Figure 5 The partial sectional view II structural schematic diagram of a turbulent flow device for the starting pipeline of pneumatic conveying proposed by the present utility model;

[0022] Figure 6 The enlarged view of part A structural schematic diagram of a turbulent flow device for the starting pipeline of pneumatic conveying proposed by the present utility model.

[0023] In the figure: 1, main conveying pipe; 2, bypass pipeline; 3, connecting pipe; 4, connecting tube; 5, housing; 6, first fixing bracket; 7, second fixing bracket; 8, first avoidance opening; 9, corrugated flexible plate; 10, round tube; 11, second avoidance opening; 12, sliding rod; 13, sliding ring; 14, pushing block; 15, spring; 16, connecting block; 17, threaded column; 18, sealing ring; 19, scraping plate; 20, knob; 21, avoidance hole. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Refer to Figures 1-6, A turbulent flow device for the starting pipeline of pneumatic conveying, comprising a conveying main pipe 1 and a bypass pipeline 2. A plurality of connecting pipes 3 are welded to the top of the conveying main pipe 1, and the plurality of connecting pipes 3 are all communicated with the bypass pipeline 2. A plurality of second fixing frames 7 are fixedly connected to the circumferential outer wall of the bypass pipeline 2. The tops of two adjacent second fixing frames 7 are fixedly connected with a housing 5. A connecting pipe 4 is welded to the bottom of the housing 5, and the connecting pipe 4 is located directly above the connecting pipe 3 and is communicated with the bypass pipeline 2. A circular pipe 10 communicated with the connecting pipe 4 is welded inside the housing 5. A sliding rod 12 extending into the connecting pipe 4 is slidably connected inside the circular pipe 10, and the sliding rod 12 can extend into the connecting pipe 3. A scraping plate 19 for scraping the inner wall of the connecting pipe 3 is welded to the bottom end of the sliding rod 12. A connecting component for driving the sliding rod 12 to move is arranged on the circumferential outer wall of the circular pipe 10. A locking component for fixing the sliding rod 12 is arranged on the top of the housing 5. When the locking component no longer fixes the sliding rod 12, the sliding rod 12 is pulled downward by the connecting component. The sliding rod 12 will drive the scraping plate 19 to move downward, so that the scraping plate 19 enters the connecting pipe 3 to scrape and clean the powdery material adhered to the inner wall of the connecting pipe 3, thereby avoiding the formation of a blockage caused by the powder adhering to the inner wall of the connecting pipe 3 and affecting the air intake, and improving the use effect of the turbulent flow device.

[0026] In the present utility model, the connecting component includes a sliding ring 13 sleeved outside the circular pipe 10. A second avoidance opening 11 is opened on one side of the circular pipe 10. A connecting block 16 moving along the second avoidance opening 11 is arranged inside the second avoidance opening 11, and the connecting block 16 is fixed to the sliding ring 13. A first avoidance opening 8 is opened on one side of the housing 5. A pushing block 14 moving along the first avoidance opening 8 is arranged inside the first avoidance opening 8, and the pushing block 14 is fixed to the sliding ring 13. By pulling the pushing block 14, the sliding ring 13 moves downward inside the housing 5. The sliding ring 13 will drive the connecting block 16 to move downward along the second avoidance opening 11, and the connecting block 16 will drive the sliding rod 12 to move downward. The locking component is a knob 20. An avoidance hole 21 is opened on the top of the housing 5. The sliding rod 12 passes through the avoidance hole 21. A threaded column 17 is welded to the top end of the sliding rod 12, and the knob 20 is threadedly connected to the threaded column 17. The knob 20 is unscrewed from the threaded column 17, so as to no longer fix the sliding rod 12;

[0027] A spring 15 is sleeved on the circumferential outer wall of the circular tube 10, and both ends of the spring 15 are fixed to the slip ring 13 and the housing 5 respectively. The slip ring 13 will compress the spring 15 during the downward movement. After the cleaning of the communicating pipe 3 is completed, the push block 14 is released. At this time, the slip ring 13 will automatically reset under the action of the spring 15, and then the knob 20 is used to lock the thread with the threaded column 17 to fix the slide bar 12. A sealing ring 18 is adhered to the circumferential outer wall of the slide bar 12, and the sealing ring 18 is in contact with the connecting pipe 4. The sealing ring 18 can seal the gap between the slide bar 12 and the connecting pipe 4. A corrugated soft plate 9 for shielding and closing is provided in the first avoidance port 8, and the corrugated soft plate 9 is fixed to the push block 14. The corrugated soft plate 9 can shield and close the first avoidance port 8. During the downward movement of the push block 14, the corrugated soft plate 9 will be compressed and contracted. A plurality of first fixing frames 6 are fixedly connected to the outside of the main conveying pipe 1, and the first fixing frames 6 are fixed to the bypass pipe 2. The first fixing frames 6 will strengthen the connection between the main conveying pipe 1 and the bypass pipe 2.

[0028] Working principle: When in use, the powdery material is conveyed through the main conveying pipe 1. By conveying high-pressure gas into the bypass pipe 2, the high-pressure gas in the bypass pipe 2 will enter the main conveying pipe 1 through the communicating pipe 3 to cause turbulent flow of the powdery material. When cleaning is required, the knob 20 is unscrewed from the threaded column 17. At this time, the slip ring 13 can be pulled downward in the housing 5 through the push block 14. The slip ring 13 will drive the connecting block 16 to move downward along the second avoidance port 11. The connecting block 16 will drive the slide bar 12 to move downward. The slide bar 12 will drive the scraper 19 to move downward, so that the scraper 19 enters the communicating pipe 3 to scrape and clean the powdery material adhering to the inner wall of the communicating pipe 3, thereby preventing the powdery material from adhering to the inner wall of the communicating pipe 3 to form a blocky obstacle affecting the air intake, improving the use effect of the turbulent flow device. The slip ring 13 will compress the spring 15 during the downward movement. After the cleaning of the communicating pipe 3 is completed, the push block 14 is released. At this time, the slip ring 13 will automatically reset under the action of the spring 15, and then the knob 20 is used to lock the thread with the threaded column 17 to fix the slide bar 12.

[0029] In addition, the terms "installation", "setting", "connection", and "sleeving" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, components, or parts. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific circumstances.

Claims

1. A turbulent flow device for the starting pipeline of pneumatic conveying, comprising a main conveying pipe (1) and a bypass pipe (2), characterized in that, A plurality of communicating pipes (3) are fixedly connected to the top of the conveying main pipe (1), and the plurality of communicating pipes (3) are all communicated with the bypass pipeline (2). A plurality of second fixing frames (7) are fixedly connected to the circumferential outer wall of the bypass pipeline (2). A housing (5) is fixedly connected to the top of two adjacent second fixing frames (7). A connecting pipe (4) is fixedly connected to the bottom of the housing (5), and the connecting pipe (4) is located directly above the communicating pipe (3) and is communicated with the bypass pipeline (2). A circular pipe (10) communicated with the connecting pipe (4) is fixedly connected inside the housing (5). A sliding rod (12) extending into the connecting pipe (4) is slidably connected inside the circular pipe (10), and the sliding rod (12) can extend into the communicating pipe (3). A scraping plate (19) for scraping the inner wall of the communicating pipe (3) is fixedly connected to the bottom end of the sliding rod (12). A connecting assembly for driving the sliding rod (12) to move is arranged on the circumferential outer wall of the circular pipe (10). A locking assembly for fixing the sliding rod (12) is arranged on the top of the housing (5).

2. The turbulent flow device for the starting pipeline of pneumatic conveying according to claim 1, wherein The connecting assembly includes a sliding ring (13). The sliding ring (13) is sleeved on the outer side of the circular pipe (10). A second avoidance port (11) is formed on one side of the circular pipe (10). A connecting block (16) moving along the second avoidance port (11) is arranged inside the second avoidance port (11), and the connecting block (16) is fixed to the sliding ring (13). A first avoidance port (8) is formed on one side of the housing (5). A pushing block (14) moving along the first avoidance port (8) is arranged inside the first avoidance port (8), and the pushing block (14) is fixed to the sliding ring (13).

3. The turbulent flow device for the starting pipeline of pneumatic conveying according to claim 1, characterized in that, The locking assembly is a knob (20). An avoidance hole (21) is formed on the top of the housing (5). The sliding rod (12) passes through the avoidance hole (21). A threaded column (17) is fixedly connected to the top end of the sliding rod (12). The knob (20) is threadedly connected to the threaded column (17).

4. The turbulator for the starting pipeline of pneumatic conveying according to claim 2, wherein, A spring (15) is sleeved on the circumferential outer wall of the circular pipe (10), and the two ends of the spring (15) are respectively fixed to the sliding ring (13) and the housing (5).

5. A turbulent flow device for the starting pipeline of pneumatic conveying according to claim 1, characterized in that, A sealing ring (18) is fixedly connected to the circumferential outer wall of the sliding rod (12), and the sealing ring (18) is in fit with the connecting pipe (4).

6. The turbulent flow device for the starting pipeline of pneumatic conveying according to claim 2, wherein A corrugated soft plate (9) for shielding and closing is arranged inside the first avoidance port (8), and the corrugated soft plate (9) is fixed to the pushing block (14).

7. The turbulent flow device for the starting pipeline of pneumatic conveying according to claim 1, characterized in that A plurality of first fixing frames (6) are fixedly connected to the outer side of the conveying main pipe (1), and the first fixing frames (6) are fixed to the bypass pipeline (2).

Images