Flow regulating rotor and pneumatic conveying pipeline flow regulator

Abstract

The utility model relates to the field of powder conveying, in particular to a flow adjusting rotor and a pneumatic conveying pipeline flow adjuster, the flow adjusting rotor is of a cylindrical structure, one end of the flow adjusting rotor is closed, the other end of the flow adjusting rotor is opened to serve as a discharging port, and at least two sets of feeding holes are formed in a cylinder body of the flow adjusting rotor in the circumferential direction for materials to enter. The axes of the feeding holes are arranged at equal intervals in the circumferential direction of the flow adjusting rotor. The flow of the pneumatic conveying pipeline is controlled by controlling the rotating speed of the flow adjusting rotor, a supercharging device does not need to be arranged in the pipeline, and the safety in the material conveying process is improved.

Description

Technical Field

[0001] This utility model relates to the field of powder conveying, specifically a flow regulating rotor and a pneumatic conveying pipeline flow regulator. Background Technology

[0002] Pneumatic conveying pipelines are a technology that uses airflow (usually air) to transport powdery, granular, or small lump materials within a closed pipeline. The core principle is to utilize airflow energy (kinetic or pressure energy) to suspend the material and allow it to move with the airflow, transporting it from a starting point (such as a storage silo) to a destination (such as a receiving tank). During pneumatic conveying, the required conveying air velocity and flow rate vary depending on the material's density, particle size, moisture content, and other characteristics. Therefore, pneumatic conveying pipelines need to dynamically adjust the flow rate to adapt to changes in conveying conditions.

[0003] Currently, the conventional flow regulation method in pneumatic conveying pipelines, as described in announcement number "CN217126265U", involves installing a pressurization device within the pipeline to suspend the powder material relative to the connecting pipe and the lower part of the pipeline, maintaining it in a fluidized state. While this method of frequently increasing and decreasing pressure can regulate flow, the constant pressure fluctuations can easily lead to leaks at the flange connections within the pipeline. Furthermore, adiabatic compression can cause an increase in temperature inside the pipeline, potentially causing material denaturation and posing safety hazards during material transport. Therefore, this issue urgently needs to be addressed. Utility Model Content

[0004] To avoid and overcome the technical problems existing in the prior art, this utility model provides a flow regulating rotor and a flow regulator for pneumatic conveying pipelines. This utility model controls the flow rate of the pneumatic conveying pipeline by controlling the rotational speed of the flow regulating rotor, eliminating the need for a pressurization device in the pipeline and improving safety during material conveying.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A flow regulating rotor has a cylindrical structure, with one end closed and the other end open as a discharge port. The cylindrical body of the flow regulating rotor has at least two sets of feed holes along the circumference for material to enter, and the axes of each feed hole are arranged at equal intervals along the circumference of the flow regulating rotor.

[0007] As a further embodiment of this invention, the diameter of each feed hole is equal.

[0008] As a further improvement of this utility model: along the rotation direction of the flow regulating rotor, the diameter of each feed hole increases arithmetically from small to large.

[0009] As a further improvement of this utility model: along the material conveying direction, the discharge port of the flow regulating rotor has a funnel-shaped structure with a gradually narrowing diameter.

[0010] A pneumatic conveying pipeline flow regulator includes a feed pipe and a discharge pipe arranged coaxially, with both the outlet of the feed pipe and the inlet of the discharge pipe being elbow-shaped. The flow regulating rotor is coaxially built into the regulating pipe, with a power source for driving the flow regulating rotor to rotate at one end of the regulating pipe and the other end of the regulating pipe connected to the inlet of the discharge pipe. A connecting pipe is arranged radially on the regulating pipe and communicates with the cavity of the regulating pipe. The regulating pipe is connected to the outlet of the feed pipe through the connecting pipe, and the opening of the connecting pipe corresponds to the position of the feed hole on the flow regulating rotor.

[0011] As a further improvement of this utility model, the diameter of the flow regulating rotor corresponds to the inner diameter of the regulating tube and is fitted with a clearance.

[0012] As a further embodiment of this utility model: the diameter of the flow regulating rotor is smaller than the inner diameter of the regulating pipe, and a docking interface is installed at the outlet of the feed pipe, which is built into the connecting pipe and arranged coaxially with the connecting pipe. The opening of the docking interface is arc-shaped and fits against the outer wall of the flow regulating rotor. The opening of the docking interface is located on the rotation path of each feed hole of the flow regulating rotor.

[0013] As a further improvement of this utility model: a blowing aid pipe is provided on the discharge pipe, which is arranged parallel to the axis of the discharge pipe. The blowing direction of the blowing aid pipe is the same as the material conveying direction, and the blowing aid pipe and the regulating pipe are positioned to avoid each other.

[0014] As a further improvement of this utility model: the power source is a speed-regulating motor fixed at the end of the regulating pipe, and the speed-regulating motor is connected to the closed end of the flow regulating rotor through a gearbox to drive the flow regulating rotor to rotate.

[0015] As a further improvement of this utility model: a first pressure sensor and a second pressure sensor for monitoring the pressure inside the pipe are respectively installed on the feed pipe and the discharge pipe, and a controller is installed on the regulating pipe to control the speed of the speed regulating motor.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model has a feed hole in the circumference of the flow regulating rotor. By controlling the flow rate, the rotation speed of the rotor is controlled, thereby controlling the amount of material entering the flow regulating rotor through the feed hole per unit time. This dynamically controls the conveying flow of the pneumatic conveying pipeline, eliminating the need to install a pressurization device in the pipeline and improving the safety of the material conveying process.

[0018] 2. This utility model adapts to different material conveying conditions by setting the diameter of the feed hole to be equal or increasing in an arithmetic manner. The funnel-shaped design of the discharge port facilitates the collection of material discharged by the flow regulating rotor.

[0019] 3. This utility model designs the regulating pipe as a T-shaped three-way pipe structure, without changing the shape of the original feed pipe and discharge pipe. Only elbow components need to be set at the openings of the feed pipe and discharge pipe to connect with the regulating pipe. The material in the feed pipe enters the flow regulating rotor after passing through the connecting pipe or the docking interface and the corresponding feed hole in the connecting pipe, and then enters the discharge pipe along the discharge port of the flow regulating rotor, thereby realizing the material conveying.

[0020] 4. This utility model uses a pressure sensor to monitor the pressure inside the pipeline in real time, thereby dynamically adjusting the speed of the flow regulating rotor to achieve dynamic flow regulation; the setting of the auxiliary blowing pipe at the discharge pipe avoids material blockage at the pipe opening. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a cross-sectional view of the feed port of the flow regulating rotor.

[0023] In the picture:

[0024] 1. Feed pipe; 11. First pressure sensor;

[0025] 2. Discharge pipe; 21. Second pressure sensor; 22. Blow-up pipe;

[0026] 3. Regulating pipe; 31. Controller; 32. Gearbox; 33. Speed ​​regulating motor; 34. Connecting interface;

[0027] 4. Flow regulating rotor; 41. Feed port; 42. Discharge port. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-2In this embodiment of the utility model, a flow regulating rotor and a flow regulator for a pneumatic conveying pipeline include a feed pipe 1 and a discharge pipe 2 arranged coaxially. The inlet of the feed pipe 1 is connected to a continuous pneumatic conveying system or a quantitative pneumatic conveying pump.

[0030] Both the outlet of the feed pipe 1 and the inlet of the discharge pipe 2 are equipped with elbow structures to facilitate the installation of the regulating pipe 3 between the two sets of elbow structures. One end of the regulating pipe 3 is a closed end, used to install a power source; the other end of the regulating pipe 3 is an open end, used to connect with the elbow structure at the inlet of the discharge pipe 2. In this embodiment, the power source is a speed-regulating motor 33, which is connected to the flow regulating rotor 4 through a gearbox 32 to drive the flow regulating rotor 4 to rotate. The connection method between the flow regulating rotor 4 and the gearbox 32 is not limited; it can be fixed by means of pins or bolts, etc., to facilitate the replacement of different models of flow regulating rotor 4.

[0031] The regulating pipe 3 has a connecting pipe arranged radially along its body. The elbow at the outlet of the feed pipe 1 is connected to the cavity of the regulating pipe 3 through the connecting pipe, so that the regulating pipe 3 has a T-shaped three-way structure. Compared with the feed pipe 1 and the discharge pipe 2, the regulating pipe 3 is arranged at an angle.

[0032] The flow regulating rotor 4 is cylindrical, with a closed top that is coaxially fixed to the gearbox 32, and an open bottom serving as a discharge port 42 for material to be discharged into the discharge pipe 2. Feed holes 41 are spaced circumferentially on the flow regulating rotor 4. The diameters of the feed holes 41 can be uniform or different. In a preferred embodiment, the diameters of the feed holes 41 increase arithmetically from small to large along the rotation direction of the flow regulating rotor 4. In this embodiment, as shown... Figure 2 As shown, there are three sets of feed holes 41, with diameters of 40mm, 60mm, and 80mm respectively. Both ends of the flow regulating rotor 4 have a gradually narrowing flared design along the direction away from the feed holes 41. The axes of the feed holes 41 are evenly spaced along the circumference of the flow regulating rotor 4.

[0033] The feed pipe 1 conveys material into the feed hole 41 of the flow regulating rotor 4 in the following two ways:

[0034] 1. The diameter of the flow regulating rotor 4 is set to correspond to the inner diameter of the regulating pipe 3. Only a small gap is maintained between the flow regulating rotor 4 and the inner wall of the regulating pipe to avoid collision during rotation. Each feed hole 41 is located within the coverage area of ​​the connecting pipe opening when passing through it. When the flow regulating rotor 4 rotates so that any set of feed holes 41 corresponds to the opening of the connecting pipe, the material in the feed pipe 1 passes through the connecting pipe and the corresponding feed hole 41, enters the flow regulating rotor 4, and then enters the discharge pipe 2 through the discharge port 42 of the flow regulating rotor 4.

[0035] 2. The diameter of the flow regulating rotor 4 is smaller than the inner diameter of the regulating pipe 3. A docking interface 34 for guiding material discharge is coaxially fixed at the outlet of the feed pipe 1. The docking interface 34 is coaxially built into the docking pipe, and the opening of the docking interface 34 is arc-shaped, fitting snugly against the outer wall of the flow regulating rotor 4 with only a small gap. When each feed hole 41 passes through the opening of the docking interface 34, it is located within the coverage area of ​​the opening of the docking interface 34. When the flow regulating rotor 4 rotates so that any set of feed holes 41 corresponds to the opening of the docking interface 34, the material in the feed pipe 1 enters the flow regulating rotor 4 after passing through the docking interface 34 and the corresponding feed hole 41, and enters the discharge pipe 2 along the discharge port 42 of the flow regulating rotor 4.

[0036] A first pressure sensor 11 and a second pressure sensor 22 are respectively installed on the feed pipe 1 and the discharge pipe 2 to monitor the pressure at the outlet of the feed pipe 1 and the inlet of the discharge pipe 2. A controller 31 is installed on the regulating pipe 3 to receive the signal data from the first pressure sensor 11 and the second pressure sensor 22, thereby determining whether to speed up or slow down the material conveying based on the pressure data, and synchronously controlling the speed of the regulating motor 33 to adjust the material conveying flow rate in real time.

[0037] To prevent material blockage at the outlet of the discharge pipe 2, an auxiliary blowing pipe 22 parallel to the axis of the discharge pipe 2 is installed at the bottom of the outlet of the discharge pipe 2. The auxiliary blowing pipe 2 is installed along the material conveying direction to prevent material blockage.

[0038] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0039] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

Claims

1. A flow regulating rotor, characterized in that, The flow regulating rotor (4) has a cylindrical structure, with one end closed and the other end open as a discharge port (42). The cylinder of the flow regulating rotor (4) has at least two sets of feed holes (41) circumferentially for material to enter. The axis of each feed hole (41) is arranged at equal intervals along the circumference of the flow regulating rotor (4).

2. The flow regulating rotor according to claim 1, characterized in that, The diameters of all feed holes (41) are equal.

3. A flow regulating rotor according to claim 1, characterized in that, Along the rotation direction of the flow regulating rotor (4), the diameter of each feed hole (41) increases arithmetically from small to large.

4. A flow regulating rotor according to claim 1, characterized in that, Along the material conveying direction, the discharge port (42) of the flow regulating rotor (4) has a trumpet-shaped structure with a gradually narrowing diameter.

5. A pneumatic conveying pipeline flow regulator, characterized in that, The device includes a feed pipe (1) and a discharge pipe (2) arranged coaxially. The outlet of the feed pipe (1) and the inlet of the discharge pipe (2) are both elbow-shaped. The flow regulating rotor (4) as described in any one of claims 1 to 4 is coaxially built into the regulating pipe (3). One end of the regulating pipe (3) is provided with a power source to drive the flow regulating rotor (4) to rotate. The other end of the regulating pipe (3) is connected to the inlet of the discharge pipe (2). A connecting pipe is provided radially on the regulating pipe (3) and communicates with the cavity of the regulating pipe (3). The regulating pipe (3) is connected to the outlet of the feed pipe (1) through the connecting pipe. The opening of the connecting pipe corresponds to the position of the feed hole (41) on the flow regulating rotor (4).

6. A pneumatic conveying pipeline flow regulator according to claim 5, characterized in that, The diameter of the flow regulating rotor (4) corresponds to the inner diameter of the regulating pipe (3) and is fitted with a clearance.

7. A pneumatic conveying pipeline flow regulator according to claim 5, characterized in that, The diameter of the flow regulating rotor (4) is smaller than the inner diameter of the regulating pipe (3). The outlet of the feed pipe (1) is equipped with a docking interface (34) that is built into the docking pipe and arranged coaxially with the docking pipe. The opening of the docking interface (34) is arc-shaped and fits against the outer wall of the flow regulating rotor (4). The opening of the docking interface (34) is located on the rotation path of each feed hole (41) of the flow regulating rotor (4).

8. A pneumatic conveying pipeline flow regulator according to claim 5, characterized in that, A blowing pipe (22) is provided on the discharge pipe (2) and arranged parallel to the axis of the discharge pipe (2). The blowing direction of the blowing pipe (22) is the same as the material conveying direction. The blowing pipe (22) and the regulating pipe (3) are positioned to avoid each other.

9. A pneumatic conveying pipeline flow regulator according to claim 5, characterized in that, The power source is a speed-regulating motor (33) at the end of the fixed regulating pipe (3). The speed-regulating motor (33) is connected to the closed end of the flow regulating rotor (4) through a gearbox (32) to drive the flow regulating rotor (4) to rotate.

10. A pneumatic conveying pipeline flow regulator according to claim 9, characterized in that, The feed pipe (1) and the discharge pipe (2) are respectively equipped with a first pressure sensor (11) and a second pressure sensor (21) to monitor the pressure inside the pipe. The regulating pipe (3) is equipped with a controller (31) to control the speed of the speed regulating motor (33).

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