Air-assisted multi-pipe equal distribution feeding structure

Abstract

This utility model provides a pneumatic multi-pipe equal-distribution feeding structure, relating to the technical field of equal-distribution feeding structures. It includes a feeding hopper, with an airlock connected below the hopper. One end of the airlock is connected to a fan via a main air duct, and the other end is connected to a feeding pipe. An auxiliary air duct extends from the side of the main air duct, with its other end connected to the feeding pipe. The advantages of this utility model are that the auxiliary air duct diverts and reduces pressure in the feeding pipe, decreasing the airflow and making the feeding process more stable and controllable. The diverted airflow and the main airflow from the main air duct form opposing airflows at the material equalizer inlet, offsetting local high-pressure areas through turbulent mixing, reducing air loss during airflow, improving wind energy utilization efficiency, and ensuring uniform material delivery. The auxiliary air duct connects to the side of the feeding pipe closest to the multi-pipe material equalizer, allowing for more precise adjustment of the material and airflow entering the multi-pipe material equalizer, enhancing the equalization effect of the entire feeding structure.

Description

Technical Field

[0001] This utility model relates to the field of material feeding structure technology, and in particular to a pneumatic multi-pipe material feeding structure. Background Technology

[0002] The pneumatic multi-pipe even-distribution feeding structure is a widely used feeding device in industrial production and other fields. It combines pneumatic conveying technology with the design concept of multiple pipes even distribution, aiming to achieve efficient and uniform material conveying. Its working principle is to use wind power to transport materials through pipes, and a specific structure to evenly distribute the material among multiple pipes. Typically, airflow generated by a fan carries the material from the feeding end to the conveying pipes, where it flows with the airflow. The multi-pipe even-distribution structure ensures that the material enters each branch pipe relatively evenly, thus achieving balanced feeding to different locations or equipment.

[0003] Pneumatic conveying can quickly transport materials to designated locations. Compared with other feeding methods, such as gravity feeding or mechanical conveying, it has a higher conveying speed, which can greatly improve production efficiency. The pneumatic conveying process is relatively enclosed, which can reduce dust and spillage of materials during the conveying process, help maintain a clean working environment, and also reduce material waste.

[0004] However, the high-speed airflow in the feeding pipe creates a negative pressure. This negative pressure causes a certain degree of loss in air pressure and flow velocity, resulting in higher losses and lower efficiency during feeding. Utility Model Content

[0005] This invention overcomes the shortcomings of existing technologies and provides a pneumatic multi-pipe equal-distribution feeding structure. An auxiliary air duct is installed to divert and reduce the airflow in the feeding pipe, making the feeding process more stable and controllable. The diverted airflow and the main airflow from the main air duct form opposing airflows at the material distributor inlet. Turbulent mixing offsets local high-pressure areas, reducing air loss during airflow, improving wind energy utilization efficiency, and ensuring uniform material delivery. The auxiliary air duct is connected to the side of the feeding pipe closest to the multi-pipe material distributor, allowing for more precise adjustment of the material and airflow entering the multi-pipe material distributor, enhancing the equalization effect of the entire feeding structure.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] A pneumatic conveying multi-pipe uniform feeding structure includes a feeding hopper, with an airlock connected below the feeding hopper. One end of the airlock is connected to a blower through a main air duct, and the other end is connected to a feeding pipe.

[0008] An auxiliary air duct extends from the side of the main air duct, and the other end of the auxiliary air duct is connected to the feeding pipe.

[0009] The auxiliary air duct diverts and reduces pressure in the feeding pipe, thereby reducing airflow and minimizing air loss during passage. Finally, the airflow converges into the input port of the multi-tube material distributor connected to the rear end of the feeding pipe.

[0010] Furthermore, the auxiliary air duct is connected to the side of the feeding pipe near the multi-tube material distributor.

[0011] Furthermore, the airlock includes an airlock housing, a discharge pipe is provided at the lower end of the airlock housing, and a material distribution fan is rotatably connected inside the airlock housing. When the material distribution fan rotates, it transfers the material inside the discharge funnel to the discharge pipe located below it.

[0012] Furthermore, one end of the discharge pipe is connected to the main air duct, and the other end is connected to the feeding pipe. When the air from the main air duct passes through the discharge pipe, it carries the material in the discharge pipe to the feeding pipe.

[0013] Furthermore, a motor mounting plate is connected to one side of the airlock housing, the motor mounting plate is connected to the motor, and the rotating shaft of the motor is connected to the material distribution fan blade.

[0014] Furthermore, an adjustable diversion valve is provided at the connection between the auxiliary air duct and the feeding pipe to dynamically adjust the air volume ratio of the auxiliary air duct.

[0015] Furthermore, the multi-tube material distributor is equipped with a spiral guide vane with a gradually decreasing pitch, which reduces from the inlet to the outlet, and forces the material to be evenly dispersed through the vortex effect.

[0016] Furthermore, the multi-tube material distributor has a conical diffuser structure with a cavity volume that is 3 to 5 times the inlet cross-sectional area, and is divided into several outlets at the cavity expansion section.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. An auxiliary air duct is installed to divert and reduce the pressure in the feeding pipe, thereby reducing the airflow in the feeding pipe and making the feeding process more stable and controllable. The diverted air and the main air in the main air duct form opposing airflows at the material distributor inlet. Through turbulent mixing, the local high-pressure area is offset, reducing the loss of airflow and improving the efficiency of air energy utilization, ensuring the uniformity of material conveying. The auxiliary air duct is connected to the side of the feeding pipe near the multi-tube material distributor, which can more accurately adjust the material and airflow about to enter the multi-tube material distributor, enhancing the uniformity of the entire feeding structure.

[0019] 2. The auxiliary air duct is also equipped with an adjustable diversion valve, which can dynamically adjust the air volume ratio of the auxiliary air duct, so that the entire feeding structure can flexibly adjust the feeding parameters according to actual needs, making it more adaptable.

[0020] 3. The multi-tube material distributor is equipped with gradually narrowing pitch spiral guide vanes, which force the material to disperse evenly through the vortex effect, ensuring that the material is evenly distributed to each outlet. Furthermore, the multi-tube material distributor has a conical diffuser structure, with a cavity volume 3 to 5 times the inlet cross-sectional area, and the cavity is divided into several outlets at the expanded portion. This structural design not only further optimizes the material dispersion effect but also utilizes the diffuser effect of the cavity to make the material flow velocity at the outlet more stable, thereby ensuring the uniformity and stability of material conveying. This effectively avoids material accumulation or uneven distribution, greatly improving the working efficiency and reliability of the entire pneumatic multi-tube material distribution structure. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the utility model and, together with the embodiments of the utility model, are used to explain the present utility model. They do not constitute a limitation on the present utility model. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the multi-tube evenly distributed feeding structure according to an embodiment of the present utility model;

[0023] Figure 2 This is an exploded view of the multi-tube equal-distribution feeding structure according to an embodiment of the present invention;

[0024] Figure 3 This is a perspective view of the multi-tube evenly distributed feeding structure according to an embodiment of the present utility model;

[0025] Figure 4 This is a cross-sectional view of the multi-tube evenly distributed feeding structure according to an embodiment of the present utility model.

[0026] In the diagram: 1. Feeding hopper; 2. Airlock; 201. Airlock housing; 2011. Feeding pipe; 202. Distributing fan blade; 203. Motor mounting plate; 204. Motor; 3. Fan; 4. Main air duct; 5. Auxiliary air duct; 6. Feeding pipe; 601. Multi-pipe material distributor. Detailed Implementation

[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0028] like Figures 1 to 4As shown, a pneumatic multi-pipe equal-distribution feeding structure includes a feeding hopper 1, which serves as the initial storage point for materials, receiving and conveying the materials and providing a stable material source for subsequent conveying processes. A shut-off valve 2 is connected below the feeding hopper 1. The shut-off valve 2 includes a shut-off valve housing 201, with a feeding pipe 2011 at its lower end. A distributing fan 202 is rotatably connected inside the shut-off valve housing 201. A motor mounting plate 203 is connected to one side of the shut-off valve housing 201, and a motor 204 is connected to the motor mounting plate 203. The rotating shaft of the motor 204 is connected to the distributing fan 202. When the motor 204 starts, its rotating shaft drives the distributing fan 202 to rotate, distributing the material inside the feeding hopper 1. The material in the section is smoothly and orderly transferred to the discharge pipe 2011 located below it. One end of the discharge pipe 2011 is connected to the main air pipe 4, and the other end is connected to the feeding pipe 6. When the air from the main air pipe 4 passes through the discharge pipe 2011, the strong air force carries the material in the discharge pipe 2011 to the feeding pipe 6. The advantage of the airlock 2 is that it can effectively prevent the backflow of material during the conveying process, ensuring the unidirectionality and stability of the material conveying. At the same time, its structure is simple and its operation is reliable, laying the foundation for the stable operation of the entire feeding structure.

[0029] One end of the airlock 2 is connected to the fan 3 via the main air duct 4, and the other end is connected to the feeding pipe 6; the powerful force provided by the fan 3 allows the air to pass smoothly through the entire feeding system, and the main air duct 4 provides the main air force support for the material conveying.

[0030] An auxiliary air duct 5 extends from the side of the main air duct 4, and the other end of the auxiliary air duct 5 connects to the feeding pipe 6. The auxiliary air duct 5 diverts and reduces the airflow in the feeding pipe 6, making the feeding process more stable and controllable. The diverted air from the auxiliary air duct 5 and the main air from the main air duct 4 form opposing airflows at the inlet of the material distributor 601. Through turbulent mixing, the local high-pressure area is offset, resulting in less air loss during airflow and greatly improving the efficiency of wind energy utilization. It also ensures the uniformity of material during the conveying process. An adjustable diversion valve is installed at the connection between the auxiliary air duct 5 and the feeding pipe 6 to dynamically adjust the airflow ratio of the auxiliary air duct 5. This design allows the entire feeding structure to flexibly adjust the feeding parameters according to actual needs, making it more adaptable.

[0031] Finally, the airflow converges into the inlet of the multi-tube material distributor 601 connected to the rear end of the feeding pipe 6. The multi-tube material distributor 601 has a gradually decreasing pitch spiral guide vane inside, with the pitch decreasing from the inlet to the outlet. Through the vortex effect, it forces the material to disperse evenly, ensuring that the material is evenly distributed to each outlet. The multi-tube material distributor 601 has a conical diffuser structure, with a cavity volume 3 to 5 times the inlet cross-sectional area. The cavity is divided into several outlets at the expanded portion. This structural design not only further optimizes the material dispersion effect but also utilizes the diffuser effect of the cavity to make the material flow velocity at the outlet more stable, thereby ensuring the uniformity and stability of material conveying. This effectively avoids material accumulation or uneven distribution, greatly improving the working efficiency and reliability of the entire pneumatic multi-tube material distribution structure.

[0032] The auxiliary air duct 5 is connected to the side of the feeding pipe 6 near the multi-tube material distributor 601. This arrangement allows the auxiliary air duct 5 to more accurately adjust the material and airflow that is about to enter the multi-tube material distributor 601, further enhancing the distribution effect of the entire feeding structure.

[0033] The pneumatic multi-pipe equal-distribution feeding structure of this utility model is equipped with an auxiliary air duct 5 to divert and divide the pressure of the feeding pipe 6, reducing the airflow in the feeding pipe 6 and making the feeding process more stable and controllable. The diverted air and the main air of the main air duct 4 form opposing airflows at the inlet of the material equalizer 601. The local high-pressure area is offset by turbulent mixing, reducing the loss of air when passing through, improving the efficiency of wind energy utilization, and ensuring the uniformity of material conveying. The auxiliary air duct 5 is connected to the side of the feeding pipe 6 near the multi-pipe material equalizer 601, which can more accurately adjust the material and airflow about to enter the multi-pipe material equalizer 601, and enhance the equalization effect of the entire feeding structure.

[0034] The auxiliary air duct 5 is also equipped with an adjustable diversion valve, which can dynamically adjust the air volume ratio of the auxiliary air duct 5, so that the entire feeding structure can flexibly adjust the feeding parameters according to actual needs, making it more adaptable.

[0035] The multi-tube material distributor 601 is equipped with a gradually narrowing pitch spiral guide vane, which forces the material to disperse evenly through the vortex effect, ensuring that the material is evenly distributed to each outlet. Furthermore, the multi-tube material distributor 601 has a conical diffuser structure, with a cavity volume 3 to 5 times the inlet cross-sectional area, and the cavity is divided into several outlets at the expanded portion. This structural design not only further optimizes the material dispersion effect but also utilizes the diffuser effect of the cavity to make the material flow velocity at the outlet more stable, thereby ensuring the uniformity and stability of material conveying. This effectively avoids material accumulation or uneven distribution, greatly improving the working efficiency and reliability of the entire pneumatic multi-tube equalization feeding structure.

[0036] In addition, the airlock 2 can effectively prevent backflow of materials during the conveying process, ensuring the unidirectionality and stability of material conveying. Its simple structure and reliable operation lay the foundation for the stable operation of the entire feeding structure.

[0037] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the utility model should be included within the protection scope of the utility model.

Claims

1. A pneumatic multi-pipe uniform feeding structure, characterized in that, Includes a feeding hopper (1), with an airlock (2) connected below the feeding hopper (1). One end of the airlock (2) is connected to the blower (3) through the main air pipe (4), and the other end is connected to the feeding pipe (6). An auxiliary air duct (5) extends from the side of the main air duct (4), and the other end of the auxiliary air duct (5) is connected to the feeding pipe (6). The auxiliary air duct (5) divides and pressurizes the feed pipe (6), reducing the airflow in the feed pipe (6) and reducing the loss of air when it passes through. Finally, the air flows into the input port of the multi-tube material distributor (601) connected to the rear end of the feed pipe (6).

2. The pneumatic multi-pipe evenly distributed feeding structure according to claim 1, characterized in that, The auxiliary air duct (5) is connected to the side of the feeding pipe (6) near the multi-pipe material distributor (601).

3. The pneumatic multi-pipe evenly distributed feeding structure according to claim 1, characterized in that, The airlock (2) includes an airlock housing (201), a discharge pipe (2011) is provided at the lower end of the airlock housing (201), and a material distribution fan (202) is rotatably connected inside the airlock housing (201). When the material distribution fan (202) rotates, it transfers the material inside the discharge funnel (1) to the discharge pipe (2011) located below it.

4. The pneumatic multi-pipe evenly distributed feeding structure according to claim 3, characterized in that, One end of the discharge pipe (2011) is connected to the main air pipe (4), and the other end is connected to the feeding pipe (6). When the air from the main air pipe (4) passes through the discharge pipe (2011), it carries the material in the discharge pipe (2011) to the feeding pipe (6).

5. The pneumatic multi-pipe evenly distributed feeding structure according to claim 4, characterized in that, One side of the airlock housing (201) is connected to a motor mounting plate (203), the motor mounting plate (203) is connected to a motor (204), and the rotating shaft of the motor (204) is connected to the material distribution fan blade (202).

6. A pneumatic multi-pipe evenly distributed feeding structure according to any one of claims 1 to 5, characterized in that, An adjustable diversion valve is provided at the connection between the auxiliary air duct (5) and the feeding pipe (6) to dynamically adjust the air volume ratio of the auxiliary air duct (5).

7. A pneumatic multi-pipe evenly distributed feeding structure according to any one of claims 1 to 5, characterized in that, The multi-tube material distributor (601) is equipped with a spiral guide vane with a gradually decreasing pitch. The pitch decreases from the inlet to the outlet, and the material is forced to be evenly dispersed through the vortex effect.

8. The pneumatic multi-pipe evenly distributed feeding structure according to claim 7, characterized in that, The multi-tube material distributor (601) has a conical diffuser structure, and the cavity volume is 3 to 5 times the inlet cross-sectional area. The cavity is divided into several outlets at the expanded part.

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