Tubular powder conveying device

Abstract

The utility model relates to the technical field of powder conveying, in particular to a tubular powder conveying device which comprises a conveying pipeline, the conveying pipeline is obliquely arranged relative to the horizontal ground, canvas is arranged in the conveying pipeline in the axial direction of the conveying pipeline, and the two opposite sides of the canvas are connected with the two opposite side walls in the conveying pipeline in a sealed mode respectively. The canvas enables an inner cavity of the conveying pipeline to form an upper cavity and a lower cavity, two end openings of the lower cavity are sealed, an upper end opening and a lower end opening of the upper cavity are a powder feeding opening and a powder discharging opening respectively, an air blower is arranged on the outer wall of the lower cavity, and an air outlet of the air blower penetrates through the outer wall of the lower cavity in a sealed mode and is communicated with the lower cavity. During use, air output from an air outlet of an air blower enters the lower cavity and then enters the upper cavity by means of air permeability of the canvas, and the canvas vibrates due to pressure difference between the lower cavity and the upper cavity, so that powder attached to the canvas vibrates, the vibration blanking effect is achieved, the conveying speed of the powder is increased, and the service life of the powder is prolonged. And the powder is prevented from being blocked in the upper cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of powder conveying, in particular to a tubular powder conveying device. Background Art

[0002] At present, the stone powder produced by stone powder processing equipment needs to be conveyed into a storage container through a powder conveying device. For example, a potassium feldspar powder conveying device disclosed in Patent Publication No. CN215665992U, in which the stone powder enters the conveying pipeline from the inlet of the conveying pipeline after being output by the stone powder processing equipment, and then enters the storage container for storage. However, when this stone powder conveying device is in use, the conveying of the stone powder in the conveying pipeline depends only on the inclination of the conveying pipeline. Due to the poor fluidity of the stone powder, as the stone powder continuously enters the conveying pipeline, the stone powder will be blocked in the conveying pipeline, affecting the conveying efficiency. Summary of the Utility Model

[0003] One of the main purposes of the present utility model is to provide a tubular powder conveying device, which aims to solve the technical problem that when the existing stone powder conveying device is in use, the conveying of the stone powder in the conveying pipeline depends only on the inclination of the conveying pipeline. Due to the poor fluidity of the stone powder, as the stone powder continuously enters the conveying pipeline, the stone powder will be blocked in the conveying pipeline, affecting the conveying efficiency.

[0004] To achieve the above purpose, the present utility model provides a tubular powder conveying device, including a conveying pipeline, the conveying pipeline is inclined with respect to the horizontal ground, a canvas is arranged along the axial direction of the conveying pipeline inside the conveying pipeline, and the opposite sides of the canvas are respectively sealed and connected to the opposite side walls inside the conveying pipeline. The canvas forms an upper cavity and a lower cavity in the inner cavity of the conveying pipeline. The two ports of the lower cavity are sealed, and the upper port and the lower port of the upper cavity are respectively the feed port and the discharge port of the powder. A blower is arranged on the outer wall of the lower cavity, and the air outlet of the blower is hermetically penetrated through the outer wall of the lower cavity and communicated with the lower cavity.

[0005] Further, the blower is arranged at the topmost position on the outer wall of the lower cavity along the inclination of the conveying pipeline, and the air output from the air outlet of the blower is conveyed from the upper port of the lower cavity to the lower port of the lower cavity along the inclination of the conveying pipeline.

[0006] Further, the conveying pipeline includes multiple sections of pipelines, and the multiple sections of pipelines are connected end to end to form the conveying pipeline.

[0007] Further, each section of the pipeline includes an upper channel steel and a lower channel steel that cover each other. On opposite sides of the outer wall of the upper channel steel, there are first connection parts, and the first connection parts are flush with the surface of the upper channel steel for fitting with the lower channel steel; on opposite sides of the outer wall of the lower channel steel, there are second connection parts, and the second connection parts are flush with the surface of the lower channel steel for fitting with the upper channel steel. The first connection parts and the second connection parts are connected and locked.

[0008] Further, the opposite side edges of the canvas are clamped between the fitting surfaces of the upper channel steel and the lower channel steel.

[0009] Further, the opposite ends of the canvas are respectively provided with a first bending part and a second bending part. The first bending part seals the upper port of the lower cavity, and the second bending part seals the lower port of the lower cavity.

[0010] Further, an observation port communicating with the upper cavity is opened on the outer wall of the upper cavity, and a glass plate is arranged on the observation port, and the glass plate covers the observation port.

[0011] Further, connection flanges are arranged on the outer edges of the opposite ends of the upper channel steel and the lower channel steel.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] When the tubular powder conveying device of the present utility model is in use, the powder enters the upper cavity from the feed port of the upper cavity. At the same time, the air output from the air outlet of the blower enters the lower cavity. Since the two ports of the lower cavity are closed and the discharge port of the upper cavity is communicated with the outside, the air entering the lower cavity will enter the upper cavity by virtue of the air permeability of the canvas. Thus, the air pressure in the lower cavity is greater than the air pressure in the upper cavity, and the pressure in the lower cavity is greater than the pressure in the upper cavity, resulting in a pressure difference between the lower cavity and the upper cavity. The pressure difference will cause the canvas to be subjected to uneven forces, causing the canvas to vibrate. As a result, the powder on the upper surface of the canvas will vibrate, and then the powder in the upper cavity will vibrate and fall along the inclination of the conveying pipeline, achieving the effect of vibrating and discharging the material, accelerating the conveying speed of the powder along the inclination of the conveying pipeline, improving the efficiency of the powder output from the discharge port of the upper cavity, and preventing the powder from being blocked in the upper cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of a tubular powder conveying device according to an embodiment of the present utility model;

[0015] Figure 2 is a schematic structural diagram of a section of the pipeline according to an embodiment of the present utility model;

[0016] Figure 3 is a schematic structural diagram of the canvas according to an embodiment of the present utility model;

[0017] Figure 4 This is a top view of a section of pipeline according to an embodiment of the present utility model;

[0018] Figure 5 is Figure 4 a cross-sectional view taken at A-A in

[0019] Reference numerals in each drawing:

[0020] 1. conveying pipeline; 10. upper cavity; 101. feed inlet; 102. discharge outlet; 11. lower cavity; 12. upper channel steel; 120. first connecting portion; 13. lower channel steel; 130. second connecting portion; 14. connecting flange; 2. canvas; 20. first bending portion; 21. second bending portion; 3. blower; 4. observation port. Detailed implementation manners

[0021] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "width", "upper", "lower", "front", "rear", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0025] Please refer to Figure 1 - Figure 5 , the present utility model provides a tubular powder conveying device, which includes a conveying pipeline 1. The conveying pipeline 1 is inclined with respect to the horizontal ground, and the angle between the conveying pipeline 1 and the horizontal ground is 20 - 30°. In this embodiment, the angle between the conveying pipeline 1 and the horizontal ground is 30°.

[0026] Of course, in other embodiments, the angle between the conveying pipeline 1 and the horizontal ground is 20° or 25°.

[0027] Refer to Figure 1 、 Figure 4 and Figure 5 , a canvas 2 is arranged along the axial direction of the conveying pipeline 1 inside the conveying pipeline 1. The opposite sides of the canvas 2 are respectively sealed and connected to the opposite side walls inside the conveying pipeline 1. The canvas 2 divides the inner cavity of the conveying pipeline 1 into an upper cavity 10 and a lower cavity 11; wherein, both ends of the lower cavity 11 are sealed, and the upper port and the lower port of the upper cavity 10 are respectively the feed port 101 and the discharge port 102 of the powder; in addition, a blower 3 is arranged on the outer wall of the lower cavity 11, and the air outlet of the blower 3 penetrates through the outer wall of the lower cavity 11 in a sealed manner and is communicated with the lower cavity 11.

[0028] It can be seen from this that when the tubular powder conveying device of the present utility model is in use, the powder enters the upper cavity 10 from the feed port 101 of the upper cavity 10. At the same time, the air output from the air outlet of the blower 3 enters the lower cavity 11. Since both ends of the lower cavity 11 are closed and the discharge port 102 of the upper cavity 10 is communicated with the outside, the air entering the lower cavity 11 will enter the upper cavity 10 by virtue of the air permeability of the canvas 2. Thus, the air pressure in the lower cavity 11 is greater than the air pressure in the upper cavity 10, and the pressure in the lower cavity 11 is greater than the pressure in the upper cavity 10, resulting in a pressure difference between the lower cavity 11 and the upper cavity 10. The pressure difference will cause the canvas 2 to be subjected to uneven forces, causing the canvas 2 to vibrate, thereby causing the powder on the upper surface of the canvas 2 to vibrate, and further causing the powder in the upper cavity 10 to vibrate and fall along the inclination of the conveying pipeline 1, achieving the effect of vibrating and discharging the material, accelerating the conveying speed of the powder along the inclination of the conveying pipeline 1, improving the efficiency of the powder output from the discharge port 102 of the upper cavity 10, and avoiding the powder from being blocked in the upper cavity 10.

[0029] In addition, since the canvas 2 is inside the conveying pipeline 1, the noise generated by the vibration is basically non-existent outside the conveying pipeline 1, achieving the effect of noise reduction. At the same time, the airflow noise generated by the blower 3 blowing air into the lower cavity 11 is also basically non-existent outside the conveying pipeline 1 because it is inside the lower cavity 11, achieving the effect of noise reduction.

[0030] Of course, the blower 3 is arranged at the topmost position on the outer wall of the lower cavity 11 along the inclination of the conveying pipeline 1, and at the same time, the air output from the air outlet of the blower 3 is conveyed from the upper port of the lower cavity 11 to the lower port of the lower cavity 11 along the inclination of the conveying pipeline 1, which is conducive to the airflow being conveyed along the inclination of the conveying pipeline 1 and avoids affecting the effect of the air outlet of the blower 3 sending air into the lower cavity 11.

[0031] It should be noted that the specification selection of the blower 3 is related to the cross-section of the conveying pipeline 1. That is, those skilled in the art can select a suitable blower 3 according to the cross-section of the conveying pipeline 1 to avoid the situation that the conveying pipeline 1 fails to achieve the effect of vibrating and discharging materials due to the relatively small wind force output by the blower 3.

[0032] Refer to Figure 1 、 Figure 2 、 Figure 4 and Figure 5 In this embodiment, the conveying pipeline 1 includes multiple sections of pipelines, and the multiple sections of pipelines are connected end to end to form the conveying pipeline 1, which is beneficial to the installation of the conveying pipeline 1. Among them, each section of the pipeline includes an upper channel steel 12 and a lower channel steel 13 that are mutually covered. On the opposite sides of the outer wall of the upper channel steel 12, there are first connection parts 120, and the first connection parts 120 are flush with the surface of the upper channel steel 12 for fitting with the lower channel steel 13; on the opposite sides of the outer wall of the lower channel steel 13, there are second connection parts 130, and the second connection parts 130 are flush with the surface of the lower channel steel 13 for fitting with the upper channel steel 12, which is beneficial to the first connection parts 120 and the second connection parts 130 being connected and locked by multiple bolts to lock the upper channel steel 12 and the lower channel steel 13.

[0033] In order to facilitate the connection of multiple upper channel steels 12 to each other and the connection of multiple lower channel steels 13 to each other, connection flanges 14 are provided on the outer edges of the opposite ends of the upper channel steel 12 and the lower channel steel 13. Among them, the connection flanges 14 on two adjacent upper channel steels 12 are connected and locked by bolts, and the sealed connection between two adjacent upper channel steels 12 can be realized; similarly, the connection flanges 14 on two adjacent lower channel steels 13 are connected and locked by bolts, and the sealed connection between two adjacent upper and lower steels can be realized, thus facilitating the sequential connection of multiple sections of pipelines.

[0034] In addition, refer to Figure 4 and Figure 5 . The opposite side edges of the canvas 2 are clamped between the fitting surfaces of the upper channel steel 12 and the lower channel steel 13, so that the opposite sides of the canvas 2 can be respectively sealedly connected to the opposite side walls inside the conveying pipeline 1. When it is necessary to replace different canvases 2, the upper channel steel 12 can be removed from the lower channel steel 13 to replace the canvas 2.

[0035] It should be noted that the ventilation holes of the canvas 2 are smaller than the particles of the powder material. The ventilation holes of the canvas 2 are 200-300 mesh. The ventilation holes of the canvas 2 in this embodiment are 200. In other embodiments, the ventilation holes of the canvas 2 can be 300 mesh. For those skilled in the art, the size of the ventilation holes of the canvas 2 can be selected according to the size of the powder particles to avoid the powder material falling into the lower cavity due to the ventilation holes of the canvas 2 being larger than the powder particles.

[0036] To facilitate the sealing of the two ports at both ends of the lower cavity 11, refer to Figure 1 , Figure 2 and Figure 3 , a first bending portion 20 and a second bending portion 21 are respectively provided at opposite ends of the canvas 2. The first bending portion 20 is formed by bending the canvas 2 downward from one end, and the second bending portion 21 is formed by bending the canvas 2 downward from the other end. Thus, when installing the canvas 2, the upper port and the lower port of the lower cavity 11 can be respectively sealed through the first bending portion 20 and the second bending portion 21 of the canvas 2.

[0037] To facilitate observing the powder material conveying condition in the upper cavity 10, an observation port 4 communicating with the upper cavity 10 is opened on the outer wall of the upper cavity 10. A glass plate (not shown) is provided on the observation port 4, and the glass plate (not shown) covers the observation port 4. That is to say, it can be understood that the powder material conveying condition in the upper cavity 10 can be observed through the glass plate (not shown).

[0038] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A tube-type powder conveying device, comprising a conveying pipeline, wherein the conveying pipeline is arranged at an angle to the horizontal ground, characterized in that: A canvas is arranged in the conveying pipe along its axial direction, and the opposite sides of the canvas are respectively sealed and connected to the opposite side walls in the conveying pipe. The canvas forms an upper cavity and a lower cavity in the inner cavity of the conveying pipe. The two ends of the lower cavity are sealed, and the upper port and the lower port of the upper cavity are the feed port and the discharge port of the powder respectively. A blower is arranged on the outer wall of the lower cavity, and the air outlet seal of the blower passes through the outer wall of the lower cavity and is connected with the lower cavity.

2. The tubular powder conveying device according to claim 1, characterized in that: The blower is arranged at the topmost position of the outer wall of the lower cavity along the inclination of the conveying pipeline, and the wind output from the air outlet of the blower is conveyed from the upper port of the lower cavity to the lower port of the lower cavity along the inclination of the conveying pipeline.

3. The tubular powder conveying device according to claim 1, characterized in that: The delivery pipeline comprises a plurality of pipeline sections, and the plurality of pipeline sections are connected end to end to form the delivery pipeline.

4. The tubular powder conveying device according to claim 3, characterized in that: Each section of the pipeline includes an upper channel steel and a lower channel steel covering each other, and a first connecting part is provided on opposite sides of the outer wall of the upper channel steel, and the first connecting part and the upper channel steel are used to be flush with the surface of the lower channel steel; a second connecting part is provided on opposite sides of the outer wall of the lower channel steel, and the second connecting part and the lower channel steel are used to be flush with the surface of the upper channel steel, and the first connecting part and the second connecting part are connected and locked.

5. The tubular powder conveying device according to claim 4, characterized in that: The opposite side edges of the canvas are clamped between the fitting surfaces of the upper channel steel and the lower channel steel.

6. The tubular powder conveying device according to claim 1, characterized in that: The canvas is provided with a first bending portion and a second bending portion at opposite ends thereof, respectively. The first bending portion seals the upper port of the lower cavity, and the second bending portion seals the lower port of the lower cavity.

7. The tubular powder conveying device according to any one of claims 1 to 6, characterized in that: An observation port communicating with the upper cavity is provided on the outer wall of the upper cavity, and a glass plate is provided on the observation port, and the glass plate covers the observation port.

8. The tubular powder conveying device according to claim 4, characterized in that: Connecting flanges are arranged on the outer edges of the two opposite ends of the upper channel steel and the lower channel steel.

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