A pneumatic conveying device

CN117429881BActive Publication Date: 2026-08-28CHANGZHOU RUIZHI ELECTROMECHANICAL TECH CO LTD
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Patent Information

Application Number
CN202311579150.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-23
Publication Date
2026-08-28
Estimated Expiration
2043-11-23

AI Technical Summary

Technical Problem

[0006]为了改善向运输管道的内部供给的气体不均匀,使得风力输送效率较低的问题,本申请提供一种风力输送装置

Benefits of technology

1、气源中的气体将会顺着进料口进风道进入进料出气环槽中,在进料出气环槽的均气作用下,输送管道的进料端的整个周线上均能够喷出气体,从而能够使得处于输送管道的进料端的物料都能够在气体的推动下处于悬浮的状态,并能够沿输送管道的长度方向移动,从而能够在气源供气速率相同的情况下能够有更好的输送效率;

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a wind force conveying device, relates to the field of material conveying equipment, and comprises a conveying pipeline, a feeding port connecting piece connected with one end of the conveying pipeline, a discharging port connecting piece connected with the other end of the conveying pipeline and a gas source, the conveying pipeline is connected with external equipment via the feeding port connecting piece and the discharging port connecting piece, a feeding gas outlet ring groove arranged around a feeding end port of the conveying pipeline is formed in the feeding port connecting piece, a feeding port air inlet channel is formed in the feeding port connecting piece, the feeding gas outlet ring groove is connected with the gas source via the feeding port air inlet channel, and gas in the gas source can enter the conveying pipeline from the feeding gas outlet ring groove. The application has the advantages that the gas supply to the conveying pipeline is more uniform, and the efficiency of the wind force conveying is improved.
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Description

Technical Field

[0001] This application relates to the field of material conveying equipment, and in particular to a wind-powered conveying device. Background Technology

[0002] A pneumatic conveying system is a transportation device that uses air as the transport medium to transport materials within a closed pipeline.

[0003] In existing technologies, an air inlet is typically opened on the side wall of the transport pipeline, allowing the air source to connect with the interior of the transport pipeline through the hole, thereby enabling the supply of air to the interior of the transport pipeline and thus realizing wind-powered transport.

[0004] However, having only one air inlet results in uneven gas supply to the inside of the transport pipeline. This means that only the material near the air inlet can be suspended and transported forward under the propulsion of the airflow, while the other part cannot be kept suspended and transported forward due to the uneven airflow. Therefore, the transport efficiency is low.

[0005] Therefore, a wind-powered conveying device is needed. Summary of the Invention

[0006] To improve the problem of uneven gas supply to the inside of the transport pipeline, which results in low wind power transport efficiency, this application provides a wind power transport device.

[0007] The wind-powered conveying device provided in this application adopts the following technical solution: A wind-powered conveying device includes a conveying pipe, an inlet connector connected to one end of the conveying pipe, an outlet connector connected to the other end of the conveying pipe, and an air source. The conveying pipe is connected to external equipment via the inlet connector and the outlet connector. The inlet connector has an inlet-outlet air ring groove and an inlet air inlet channel arranged around the inlet end port of the conveying pipe. The inlet-outlet air ring groove is connected to the air source via the inlet air inlet channel, and the gas in the air source can enter the conveying pipe from the inlet-outlet air ring groove.

[0008] By adopting the above technical solution, the gas in the gas source will enter the feed outlet gas ring groove along the feed inlet air duct. Under the uniform gas distribution effect of the feed outlet gas ring groove, gas can be ejected along the entire circumference of the feed end of the conveying pipeline. This allows the material at the feed end of the conveying pipeline to be suspended under the push of the gas and to move along the length of the conveying pipeline, thus achieving better conveying efficiency under the same gas supply rate.

[0009] Furthermore, the feed air distribution ring groove is provided with a feed air distribution ring, and the outer wall of the feed air distribution ring groove, together with the side wall and bottom wall of the feed air distribution ring groove, forms a feed air distribution groove. The feed inlet air duct is connected to the feed air distribution groove, and a plurality of feed air distribution holes are provided at equal intervals on the feed air distribution ring.

[0010] By adopting the above technical solution, the gas entering the feed outlet ring groove can be uniformly distributed through the feed equalization ring, thereby ensuring that the part of the feed outlet ring groove that is far from the feed inlet air duct also has a sufficient gas outlet rate.

[0011] Furthermore, the diameter of the feed equalization holes on the feed equalization ring is smaller the closer they are to the air outlet of the feed inlet air duct, and larger the diameter of the feed equalization holes is larger the farther they are from the air outlet of the feed inlet air duct.

[0012] By adopting the above technical solution, the air output at various points on the feed and outlet air ring groove can be made to be basically consistent.

[0013] Furthermore, the feed inlet connector includes a base plate, a connecting pipe, an abutment plate, and a crimping flange; The substrate is provided with countersunk holes and feed through holes; The connecting pipe includes a connecting flange, a connecting section on one side of the connecting flange, and a plug section on the other side of the connecting flange. The plug section can pass through the feed through hole and enter the countersunk hole. The end face of the plug section is the windward face, which extends obliquely from the outer wall surface to the inner wall surface of the connecting pipe in a direction away from the connecting flange. The abutment plate includes a plate body and an abutment ring. The abutment plate abuts against the bottom of the countersunk hole via the abutment ring, and can form the feed and exhaust ring groove between the abutment plate and the substrate. The plate body is also provided with an abutment plate through hole. The hole wall of the abutment plate through hole is a flow guiding surface. The flow guiding surface extends away from the connecting pipe in the direction from the outer edge of the abutment plate to the centroid of the abutment plate. The feed inlet of the conveying pipeline is provided with a pipeline flange, and the pipeline flange abuts against the crimping flange and the abutment plate via the crimping flange; The base plate is provided with a threaded hole that matches the flange hole on the crimping flange. The base plate is also provided with a connecting through hole that matches the flange hole on the connecting flange. The abutment ring is provided with a threaded hole that matches the flange hole on the connecting flange.

[0014] By adopting the above technical solution, the gap between the windward surface and the guide surface constitutes the air outlet of the feed-outlet annular groove. After the gas flows out of the feed-outlet annular groove, it will be blown at an angle along the length of the conveying pipe and biased towards the axis of the conveying pipe. This will drive the material in the conveying pipe to leave the pipe wall and be conveyed forward along the length of the conveying pipe. The split structure and detachable connection make it easy to form the feed-outlet annular groove and also make it easy to replace the damaged parts.

[0015] Furthermore, both the windward surface and the guide surface are formed as concave arc surfaces. A first airbag is provided on the windward surface, and a second airbag is provided on the guide surface. An air outlet is formed between the first airbag and the second airbag. When the first airbag is deflated and the second airbag is inflated, the air outlet direction of the air outlet is shifted towards the axis of the conveying pipe. When the first airbag is inflated and the second airbag is deflated, the air outlet direction of the air outlet is shifted towards the pipe wall of the conveying pipe.

[0016] By adopting the above technical solution, the direction of gas flowing out of the feed and outlet annular groove can be adjusted according to the weight of the material particles and the required conveying rate, thereby adapting to the conveying of granular materials of different specifications.

[0017] Furthermore, the first airbag includes a windward connecting portion and a windward deforming portion, which are connected to the windward surface via the windward connecting portion. When the first airbag is deflated, the windward deforming portion is recessed towards the windward connecting portion and can fit against the windward connecting portion. When the first airbag is inflated, the windward deforming portion protrudes in a direction away from the windward connecting portion. The second airbag includes a flow-guiding connection portion and a flow-guiding deformation portion, which are connected to the flow-guiding surface via the flow-guiding connection portion. When the second airbag is deflated, the flow-guiding deformation portion is recessed towards the flow-guiding connection portion and can fit against the flow-guiding connection portion. When the second airbag is inflated, the flow-guiding deformation portion protrudes in a direction away from the flow-guiding connection portion.

[0018] By adopting the above technical solution, the direction of gas flowing out of the feed outlet annular groove can be adjusted.

[0019] Furthermore, the feed equalization ring is connected to the bottom of the countersunk hole, and the first airbag also includes a windward pressing edge, which is pressed between the outer wall of the insertion section and the wall of the feed through hole; the second airbag also includes a flow guiding pressing edge, which is pressed between the feed equalization ring and the plate body.

[0020] By adopting the above technical solution, it can be ensured that the first airbag and the second airbag can still be stably connected to the feed inlet connector under the blowing of gas.

[0021] Furthermore, the discharge port connector has a discharge air outlet ring groove and a discharge port air inlet channel arranged around the discharge end port of the conveying pipe. The discharge air outlet ring groove is connected to the air source via the discharge port air inlet channel. The gas in the air source can enter the discharge air outlet ring groove and be blown away from the conveying pipe.

[0022] By adopting the above technical solution, the material can be further conveyed forward under the propulsion of gas when it is conveyed to the outlet of the conveying pipeline, so as to ensure smooth discharge and prevent material accumulation in the conveying pipeline.

[0023] Furthermore, the discharge air distribution ring groove is provided with a discharge air distribution ring, and the outer wall of the discharge air distribution ring groove, together with the side wall and bottom wall of the discharge air distribution ring groove, forms a discharge air distribution groove. The discharge port air inlet is connected to the discharge air distribution groove, and a plurality of discharge air distribution holes are provided at equal intervals on the discharge air distribution ring.

[0024] By adopting the above technical solution, the gas entering the discharge gas ring groove can be uniformly distributed through the discharge gas equalization ring, thereby ensuring that the part of the discharge gas ring groove that is far from the discharge gas equalization ring also has a sufficient gas discharge rate.

[0025] Furthermore, the diameter of the discharge equalization holes on the discharge equalization ring is smaller the closer they are to the air outlet of the discharge inlet duct, and larger the diameter of the discharge equalization holes is larger the farther they are from the air outlet of the discharge inlet duct.

[0026] By adopting the above technical solution, the amount of air discharged at various points on the discharge and air outlet ring groove can be made to be basically the same.

[0027] In summary, this application includes at least one of the following beneficial effects: 1. The gas in the gas source will enter the feed outlet air ring groove through the feed inlet air duct. Under the uniform gas distribution effect of the feed outlet air ring groove, gas can be ejected along the entire circumference of the feed end of the conveying pipe. This allows the material at the feed end of the conveying pipe to be suspended under the push of the gas and move along the length of the conveying pipe, thus achieving better conveying efficiency under the same gas supply rate. 2. When the first airbag is deflating, the windward deformation part is recessed towards the windward connection part and can fit against the windward connection part. When the first airbag is inflated, the windward deformation part protrudes away from the windward connection part. When the second airbag is deflating, the flow guiding deformation part is recessed towards the flow guiding connection part and can fit against the flow guiding connection part. When the second airbag is inflated, the flow guiding deformation part protrudes away from the flow guiding connection part. Therefore, when the first airbag is deflating and the second airbag is inflating, the air outlet direction of the air outlet can be shifted towards the axis of the conveying pipe. When the first airbag is inflating and the second airbag is deflating, the air outlet direction of the air outlet can be shifted towards the pipe wall of the conveying pipe. This allows the direction of gas flowing out of the feed and outlet annular groove to be adjusted according to the weight of the material particles and the required conveying rate, thus adapting to the conveying of granular materials of different specifications. Attached Figure Description

[0028] Figure 1 This is a perspective view of a wind power transmission device according to this application; Figure 2 This is a partial sectional view of a pneumatic conveying device according to this application, cut along the axial direction of the inlet air duct. Figure 3 yes Figure 2 Enlarged view of region A in the middle; Figure 4 yes Figure 2 Enlarged view of region B in the middle; Figure 5 yes Figure 2 A partial structural cross-sectional view in the CC direction is used to show the connection status between the conveying pipe and the inlet connector.

[0029] Explanation of reference numerals in the attached drawings: 1. Conveying pipe; 11. Pipe flange; 2. Inlet connector; 21. Inlet air outlet groove; 211. Air outlet; 22. Inlet air inlet duct; 23. Inlet air distribution ring; 231. Inlet air distribution hole; 24. Base plate; 241. Countersunk hole; 242. Inlet through hole; 25. Connecting pipe; 251. Connecting flange; 252. Connecting section; 253. Insertion section; 2531. Windward side; 26. 1. Abutment plate; 261. Plate body; 2611. Guide surface; 262. Abutment ring; 27. Press flange; 3. Discharge port connector; 31. Discharge and air outlet ring groove; 32. Discharge port air inlet duct; 33. Discharge air distribution ring; 4. First airbag; 41. Windward connection part; 42. Windward deformation part; 43. Windward press edge; 5. Second airbag; 51. Guide connection part; 52. Guide deformation part; 53. Guide press edge. Detailed Implementation

[0030] Figure 1 This is a perspective view of a wind power transmission device according to this application. Figure 2This is a partial sectional view of a pneumatic conveying device according to this application, taken along the axial direction of the inlet air duct. See also... Figure 1 and Figure 2 The wind-powered conveying device provided in this application includes a conveying pipe 1, an inlet connector 2 connected to one end of the conveying pipe 1, an outlet connector 3 connected to the other end of the conveying pipe 1, and an air source (which may be a high-pressure air pump, not shown in the figure). The conveying pipe 1 is connected to external equipment or pipes via the inlet connector 2 and the outlet connector 3. The inlet connector 2 has an inlet-outlet air ring groove 21 and an inlet air inlet channel 22 arranged around the inlet end port of the conveying pipe 1. The inlet-outlet air ring groove 21 is connected to the air source via the inlet air inlet channel 22. The gas in the air source can enter the conveying pipe 1 from the inlet-outlet air ring groove 21. Under the uniform air action of the inlet-outlet air ring groove 21, gas can be ejected along the entire circumference of the inlet end of the conveying pipe 1, so that the material at the inlet end of the conveying pipe 1 can be suspended under the push of the gas and can move along the length direction of the conveying pipe 1, thereby achieving better conveying efficiency under the same gas supply rate.

[0031] Figure 3 yes Figure 2 See the enlarged view of region A in the middle. Figure 2 and Figure 3 The feed outlet air ring groove 21 is provided with a feed equalization ring 23. The outer wall of the feed equalization ring 23, together with the side wall and bottom wall of the feed outlet air ring groove 21, forms a feed equalization groove. The feed inlet air duct 22 is connected to the feed equalization groove. The feed equalization ring 23 is provided with multiple feed equalization holes 231 at equal intervals. Thus, the gas entering the feed outlet air ring groove 21 can be evenly distributed through the feed equalization ring 23 to ensure that the part of the feed outlet air ring groove 21 that is far away from the feed inlet air duct 22 also has a sufficient gas outlet rate.

[0032] Understandably, the diameter of the feed equalization hole 231 on the feed equalization ring 23, which is closer to the air outlet of the feed inlet air duct 22, can be set smaller, while the diameter of the feed equalization hole 231 on the air outlet of the feed inlet air duct 22, which is farther away, can be set larger. This ensures that at least 30% of the gas can be ejected from the feed equalization hole 231 on the feed equalization ring 23, which is farther away from the air outlet of the feed inlet air duct 22. This ensures that the air volume at each point of the feed outlet air ring groove 21 can reach the set value, and that the air volume at each point of the feed outlet air ring groove 21 is basically the same. This ensures the uniformity of air supply, resulting in a more uniform blowing effect on the material. Material is less likely to accumulate at the feed inlet of the conveying pipe 1, thereby improving the material conveying efficiency.

[0033] Figure 4 yes Figure 2See the enlarged view of region B in the middle. Figure 3 and Figure 4 The feed inlet connector 2 includes a base plate 24, a connecting pipe 25, an abutment plate 26, and a crimping flange 27. Specifically, a countersunk hole 241 and a feed through hole 242 are provided on the base plate 24, and the feed inlet air duct 22 is also formed on the base plate 24. The connecting pipe 25 includes a connecting flange 251, a connecting section 252 provided on one side of the connecting flange 251, and a plug section 253 provided on the other side of the connecting flange 251. The plug section 253 can pass through the feed through hole 242 and enter the countersunk hole 241. The end face of the plug section 253 is the windward face 2531, which extends obliquely from the outer wall surface to the inner wall surface of the connecting pipe 25 in a direction away from the connecting flange 251.

[0034] The abutment plate 26 includes a plate body 261 and an abutment ring 262. A portion of the feed inlet air duct 22 is also formed on the abutment ring 262, and the outer diameter of the abutment ring 262 is consistent with the diameter of the countersunk hole 241, so that the abutment plate 26 is not easy to shake after being inserted into the countersunk hole 241. The abutment plate 26 abuts against the bottom of the countersunk hole 241 via the abutment ring 262, and can form a feed air outlet ring groove 21 between the abutment plate 26 and the substrate 24. In addition, the plate body 261 is also provided with an abutment plate through hole to ensure that the connecting pipe 25 can communicate with the conveying pipe 1. The hole wall of the abutment plate through hole is a flow guide surface 2611. The flow guide surface 2611 extends from the outer edge of the abutment plate 26 to the centroid of the abutment plate 26 in a direction away from the connecting pipe 25.

[0035] Figure 5 yes Figure 2 A partial sectional view along the CC direction, showing the connection between the conveying pipe and the inlet connector; see [reference]. Figure 3 and Figure 5 The feed inlet of the conveying pipe 1 is provided with a pipe flange 11. The pipe flange 11 abuts against the crimp flange 27 and the abutment plate 26 via a crimp flange 27. The base plate 24 is provided with threaded holes that match the flange holes on the crimp flange 27, so that bolts can pass through the flange holes on the crimp flange 27 and be screwed onto the flange holes on the base plate 24. This enables a fixed connection between the crimp flange 27 and the base plate 24, allowing the pipe flange 11 to abut against the crimp flange 27 and the abutment plate 26. The connecting ring 26 can be positioned between the pressing flange 27 and the base plate 24, and the base plate 24 is provided with a connecting through hole that matches the flange hole on the connecting flange 251. The connecting ring 262 is provided with a threaded hole that matches the flange hole on the connecting flange 251. The bolt can pass through the flange hole on the connecting flange 251 and the through hole on the base plate 24 in sequence to be screwed into the threaded hole on the connecting ring 262, thereby realizing the connection between the connecting pipe 25 and the base plate 24.

[0036] Based on the above configuration, the gap between the windward surface 2531 and the guide surface 2611 constitutes the air outlet of the feed-outlet annular groove 21. This allows the gas to flow out of the feed-outlet annular groove 21 and be blown at an angle along the length of the conveying pipe 1 and towards the axis of the conveying pipe 1. This enables the material in the conveying pipe 1 to leave the pipe wall of the conveying pipe 1 and be conveyed forward along the length of the conveying pipe 1. The split structure and detachable connection facilitate the formation of the feed-outlet annular groove 21 and also make it easy to replace any damaged parts.

[0037] See Figure 4 The windward surface 2531 and the guide surface 2611 are both formed as concave arc surfaces. A first airbag 4 is provided on the windward surface 2531, and a second airbag 5 is provided on the guide surface 2611. An air outlet 211 is formed between the first airbag 4 and the second airbag 5. Specifically, the first airbag 4 includes a windward connecting part 41 and a windward deformation part 42, which are connected to the windward surface 2531 via the windward connecting part 41. The windward connecting part 41 can be made of rigid plastic. The material is used, and the cross-sectional shape of the windward connecting part 41 can be a concave arc shape that matches the windward surface 2531. The windward deformation part 42 can be made of rubber, so that when the first airbag 4 is deflating, the windward deformation part 42 can move closer to the windward connecting part 41 until it fits against the windward connecting part 41 to form a concave arc shape that matches the windward surface 2531. When the first airbag 4 is inflated, the windward deformation part 42 protrudes in a direction away from the windward connecting part 41. The second airbag 5 includes a flow-guiding connecting portion 51 and a flow-guiding deformable portion 52, which are connected to the flow-guiding surface 2611 via the flow-guiding connecting portion 51. The flow-guiding connecting portion 51 may be made of rigid plastic, and the cross-sectional shape of the flow-guiding connecting portion 51 may be a concave arc shape that matches the flow-guiding surface 2611. The flow-guiding deformable portion 52 may be made of rubber, so that when the second airbag 5 is deflated, the flow-guiding deformable portion 52 can approach the flow-guiding connecting portion 51 until it fits against the flow-guiding connecting portion 51 to form a concave arc shape that matches the flow-guiding surface 2611. When the second airbag 5 is inflated, the flow-guiding deformable portion 52 protrudes away from the flow-guiding connecting portion 51. Therefore, when the first airbag 4 is deflated and the second airbag 5 is inflated, the air outlet direction of the air outlet 211 is shifted toward the axis of the conveying pipe 1; when the first airbag 4 is inflated and the second airbag 5 is deflated, the air outlet direction of the air outlet 211 is shifted toward the pipe wall of the conveying pipe 1. This allows the direction of the gas flowing out of the feed outlet annular groove 21 to be adjusted according to the weight of the material particles and the required conveying rate, so as to adapt to the conveying of granular materials of different specifications.

[0038] Furthermore, it is understood that both the first airbag 4 and the second airbag 5 need to be connected to an air pump (not shown in the figure) to achieve air extraction and inflation. Therefore, an air passage (such as...) needs to be provided on the connecting pipe 25. Figure 5(As shown) to enable communication between the first airbag 4 and the air pump, air passages (such as) also need to be provided on the plate body 261 of the contact plate 26 and the base plate 24. Figure 2 and Figure 3 (As shown) This allows the second airbag 5 to be connected to the air pump.

[0039] See Figure 4 The feed equalization ring 23 is connected to the bottom of the countersunk hole 241. Specifically, the connection can be achieved by welding, or an annular limiting groove can be provided at the bottom of the countersunk hole 241 so that the feed equalization ring 23 can be inserted into the annular limiting groove to achieve the limiting and fixing of the feed equalization ring 23. The first airbag 4 also includes a windward pressing edge 43, which is pressed between the outer wall of the insertion section 253 and the hole wall of the feed through hole 242. The second airbag 5 also includes a flow guiding pressing edge 53 for guiding the flow. The crimping edge 53 is crimped between the feed air equalization ring 23 and the plate body 261 to ensure that the first airbag 4 and the second airbag 5 can still be stably connected to the feed port connector 2 under the blowing of gas. Both the flow guiding crimping edge 53 and the wind-facing crimping edge 43 can be made of rubber material, so that the wind-facing crimping edge 43 can achieve the seal between the outer wall of the insertion section 253 and the hole wall of the feed through hole 242, and the flow guiding crimping edge 53 can achieve the seal between the feed air equalization ring 23 and the plate body 261.

[0040] See Figure 2 The discharge port connector 3 has a discharge air outlet ring groove 31 and a discharge port air inlet duct 32 arranged around the discharge end port of the conveying pipe 1. The discharge air outlet ring groove 31 is connected to the air source through the discharge port air inlet duct 32. The gas in the air source can enter the discharge air outlet ring groove 21 and blow it away from the conveying pipe 1, so that the material can be further conveyed forward under the push of the gas when it is conveyed to the discharge port of the conveying pipe 1, so as to ensure smooth discharge and prevent material accumulation in the conveying pipe 1.

[0041] A discharge air distribution ring 33 is provided in the discharge air distribution ring groove 31. The outer wall of the discharge air distribution ring 33, together with the side wall and bottom wall of the discharge air distribution ring groove 31, forms a discharge air distribution groove. The discharge inlet air duct 32 is connected to the discharge air distribution groove. Multiple discharge air distribution holes (not shown in the figure) are provided at equal intervals on the discharge air distribution ring 33. The diameter of the discharge air distribution holes on the discharge air distribution ring 33 is smaller closer to the discharge inlet air duct 32, and larger further away from the discharge inlet air duct 32. The air volume is large enough to ensure that at least 30% of the gas is ejected from the air outlet of the discharge air equalization ring 33, which is far from the air outlet of the discharge inlet duct 32. This ensures that the air volume at each point of the discharge air equalization ring 31 reaches the set value and that the air volume at each point of the discharge air equalization ring 31 is basically the same, thus ensuring the uniformity of air supply. This makes the blowing effect on the material more uniform, and the material is less likely to accumulate at the discharge port of the conveying pipe 1, thereby making the material conveying efficiency higher.

[0042] The working principle of the wind power transmission device in this application is as follows: First, the gas in the gas source will enter the feed outlet gas ring groove 21 through the feed inlet air inlet duct 22. Under the gas equalization effect of the feed outlet gas ring groove 21, gas can be ejected along the entire circumference of the feed end of the conveying pipe 1. This allows the material at the feed end of the conveying pipe 1 to be suspended under the push of the gas and to move along the length of the conveying pipe 1, thus achieving better conveying efficiency under the same gas supply rate.

[0043] Furthermore, when the first airbag 4 is deflating, the windward deformation part 42 is recessed towards the windward connection part 41 and can fit against the windward connection part 41. When the first airbag 4 is inflated, the windward deformation part 42 protrudes away from the windward connection part 41. When the second airbag 5 is deflating, the flow guiding deformation part 52 is recessed towards the flow guiding connection part 51 and can fit against the flow guiding connection part 51. When the second airbag 5 is inflated, the flow guiding deformation part 52 protrudes away from the flow guiding connection part 51. This allows the air outlet direction of the air outlet 211 to shift towards the axis of the conveying pipe 1 when the first airbag 4 is deflating and the second airbag 5 is inflating. When the first airbag 4 is inflated and the second airbag 5 is deflating, the air outlet direction of the air outlet 211 can shift towards the pipe wall of the conveying pipe 1. This allows the direction of the gas flowing out of the feed outlet annular groove 21 to be adjusted according to the weight of the material particles and the required conveying rate, thereby adapting to the conveying of granular materials of different specifications.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A wind-powered conveying device, characterized in that, The device includes a conveying pipe (1), an inlet connector (2) connected to one end of the conveying pipe (1), an outlet connector (3) connected to the other end of the conveying pipe (1), and an air source. The conveying pipe (1) is connected to external equipment via the inlet connector (2) and the outlet connector (3). The inlet connector (2) has an inlet air outlet ring groove (21) and an inlet air inlet duct (22) formed around the inlet end port of the conveying pipe (1). The inlet air outlet ring groove (21) is connected to the air source via the inlet air inlet duct (22). The gas in the air source can enter the conveying pipe (1) from the inlet air outlet ring groove (21). The feed air outlet ring groove (21) is provided with a feed equalization ring (23). The outer wall of the feed equalization ring (23) and the side wall and bottom wall of the feed air outlet ring groove (21) together form a feed equalization groove. The feed inlet air inlet channel (22) is connected to the feed equalization groove. The feed equalization ring (23) is provided with a plurality of feed equalization holes (231) at equal intervals. The diameter of the feed equalization hole (231) on the feed equalization ring (23) is smaller the closer it is to the air outlet of the feed inlet air duct (22), and the diameter of the feed equalization hole (231) is larger the further it is from the air outlet of the feed inlet air duct (22). The feed port connector (2) includes a base plate (24), a connecting pipe (25), an abutment plate (26), and a crimping flange (27). The substrate (24) is provided with a countersunk hole (241) and a feed through hole (242). The connecting pipe (25) includes a connecting flange (251), a connecting section (252) provided on one side of the connecting flange (251), and a plug section (253) provided on the other side of the connecting flange (251). The plug section (253) can pass through the feed through hole (242) and enter the countersunk hole (241). The end face of the plug section (253) is the windward face (2531). The windward face (2531) extends obliquely from the outer wall surface to the inner wall surface of the connecting pipe (25) in a direction away from the connecting flange (251). The abutment plate (26) includes a plate body (261) and an abutment ring (262). The abutment plate (26) abuts against the bottom of the countersunk hole (241) via the abutment ring (262) and can form the feed and exhaust ring groove (21) between the abutment plate (26) and the substrate (24). The plate body (261) is also provided with an abutment plate through hole. The hole wall of the abutment plate through hole is a flow guide surface (2611). The flow guide surface (2611) extends from the outer edge of the abutment plate (26) to the centroid of the abutment plate (26) in a direction away from the connecting pipe (25). The feed inlet of the conveying pipe (1) is provided with a pipe flange (11), and the pipe flange (11) abuts against the crimping flange (27) and the abutment plate (26) via the crimping flange (27); The base plate (24) is provided with a threaded hole that matches the flange hole on the crimping flange (27). The base plate (24) is also provided with a connecting through hole that matches the flange hole on the connecting flange (251). The abutment ring (262) is provided with a threaded hole that matches the flange hole on the connecting flange (251).

2. The wind-powered conveying device according to claim 1, characterized in that: Both the windward surface (2531) and the guide surface (2611) are formed as concave arc surfaces. The windward surface (2531) is provided with a first airbag (4), and the guide surface (2611) is provided with a second airbag (5). An air outlet (211) is formed between the first airbag (4) and the second airbag (5). When the first airbag (4) is deflated and the second airbag (5) is inflated, the air outlet direction of the air outlet (211) is offset toward the axis of the conveying pipe (1). When the first airbag (4) is inflated and the second airbag (5) is deflated, the air outlet direction of the air outlet (211) is offset toward the pipe wall of the conveying pipe (1).

3. The wind-powered conveying device according to claim 2, characterized in that: The first airbag (4) includes a windward connecting part (41) and a windward deformable part (42) to be connected to the windward surface (2531) via the windward connecting part (41). When the first airbag (4) is deflated, the windward deformable part (42) is recessed towards the windward connecting part (41) and can fit against the windward connecting part (41). When the first airbag (4) is inflated, the windward deformable part (42) protrudes away from the windward connecting part (41). The second airbag (5) includes a flow-guiding connection part (51) and a flow-guiding deformation part (52) for connecting to the flow-guiding surface (2611) via the flow-guiding connection part (51). When the second airbag (5) is deflated, the flow-guiding deformation part (52) is recessed towards the flow-guiding connection part (51) and can fit against the flow-guiding connection part (51). When the second airbag (5) is inflated, the flow-guiding deformation part (52) protrudes away from the flow-guiding connection part (51).

4. A wind-powered conveying device according to claim 3, characterized in that: The feed equalization ring (23) is connected to the bottom of the countersunk hole (241). The first airbag (4) also includes a windward pressing edge (43), which is pressed between the outer wall of the insertion section (253) and the wall of the feed through hole (242). The second airbag (5) also includes a flow guiding pressing edge (53), which is pressed between the feed equalization ring (23) and the plate body (261).

5. A wind-powered conveying device according to any one of claims 1 to 4, characterized in that: The discharge port connector (3) has a discharge air outlet ring groove (31) and a discharge port air inlet channel (32) arranged around the discharge end port of the conveying pipe (1). The discharge air outlet ring groove (31) is connected to the air source via the discharge port air inlet channel (32). The gas in the air source can enter the discharge air outlet ring groove (21) and be blown away from the conveying pipe (1).

6. A wind-powered conveying device according to claim 5, characterized in that: The discharge air ring groove (31) is provided with a discharge air equalization ring (33). The outer wall of the discharge air equalization ring (33) and the side wall and bottom wall of the discharge air ring groove (31) together form a discharge air equalization groove. The discharge port air inlet channel (32) is connected to the discharge air equalization groove. The discharge air equalization ring (33) is provided with a plurality of discharge air equalization holes at equal intervals.

7. A wind-powered conveying device according to claim 6, characterized in that: The diameter of the discharge equalization holes on the discharge equalization ring (33) is smaller the closer they are to the discharge inlet air passage (32), and larger the diameter of the discharge equalization holes is larger the farther they are from the discharge inlet air passage (32).

Citation Information

Patent Citations

  • Pneumatic feeding device

    CN105366368A

  • Pneumatic conveying device and connecting piece for same

    CN112061789A