Pneumatic blowing anti-blocking three-way baffle and coal conveying system

Abstract

The present disclosure relates to a pneumatically purged anti-blocking three-way baffle and a coal conveying system, comprising a housing and a diverter plate disposed within the housing. The housing is provided with a feed port, a first discharge port, and a second discharge port. The diverter plate is disposed within the housing and is configured to flip so that the feed port selectively communicates with the first discharge port or the second discharge port. The diverter plate includes a loading end surface provided with a plurality of nozzles capable of communicating with an external air source. Through the above-described technical solution, the three-way baffle provided by the present disclosure has the function of assisting in the removal of impurities and preventing their adhesion, thereby effectively preventing the formation of lumps on the diverter plate and eliminating the need for operators to manually clean the lumps multiple times, thereby improving production efficiency.

Description

Technical Field

[0001] The present disclosure relates to pipelines, and in particular to a pneumatically purged anti-blocking three-way baffle and a coal conveying system. Background Art

[0002] Coal used in thermal power plants requires water spraying to reduce dust during transportation. However, when passing through the three-way damper during transportation, the wet coal will adhere to the three-way damper, forming hard lumps, which affect the function of the three-way damper and even cause blockage in severe cases. Currently, the main method of removing lumps is manual work. Due to the hardness of the lumps, manual cleaning is inefficient. Cleaning requires long shutdowns of the coal conveying system, which affects production efficiency. During the operation, workers need to clean the lumps, which poses certain safety risks. Improper cleaning can also damage the three-way damper, increasing maintenance costs and time. Summary of the Invention

[0003] The purpose of the present invention is to provide a pneumatically purged anti-blocking three-way baffle and a coal conveying system, so as to solve the problem in the related art that coal forms lumps in the three-way baffle due to water spraying during transportation.

[0004] In order to achieve the above-mentioned objectives, the present disclosure provides a pneumatic blowing anti-blocking three-way baffle, including a shell and a diverter plate arranged inside the shell, the shell is provided with a feed port, a first discharge port and a second discharge port, the diverter plate is configured to be flippable so that the feed port is selectively connected to the first discharge port or the second discharge port, the diverter plate includes a loading end face, and a plurality of nozzles that can be connected to an external air source are provided on the loading end face.

[0005] Optionally, an air flow channel for communicating with an external air source is provided inside the diverter plate, and the nozzle is connected to the air flow channel.

[0006] Optionally, a partition plate perpendicular to the loading end face is provided in the air flow channel, and the partition plate is used to separate the air flow channel into a first air cavity and a second air cavity that are not connected to each other, and the first air cavity and the second air cavity are respectively provided with air inlet holes for connecting with an external air source.

[0007] Optionally, the partition plate extends in a square wave shape along a cross section parallel to the material loading end surface.

[0008] Optionally, the two opposite plate surfaces of the diverter plate are respectively formed as the two material-carrying end surfaces, wherein the nozzle on one of the material-carrying end surfaces is arranged along the first air cavity, and the nozzle on the other material-carrying end surface is arranged along the second air cavity.

[0009] Optionally, the nozzle opening of the nozzle is configured to gradually expand along the gas ejection direction.

[0010] Optionally, the shell is provided with a first connecting shaft passing through the shell, the first connecting shaft is rotatably connected to the shell, the part of the first connecting shaft inside the shell is used to connect with the diverter plate, and the part of the first connecting shaft outside the shell is used to connect with the driving device to flip the diverter plate.

[0011] Optionally, the driving device includes an electro-hydraulic push rod and a connecting rod, and the end of the piston rod in the electro-hydraulic push rod is provided with a second connecting shaft in the same extension direction as the first connecting shaft, one end of the connecting rod is fixedly mounted on the outer periphery of the first connecting shaft, and the other end of the connecting rod is rotatably mounted on the outer periphery of the second connecting shaft.

[0012] Optionally, a hollow pipeline is provided inside the first connecting shaft, one end of the hollow pipeline is connected to the nozzle, and the other end of the hollow pipeline is connected to an external gas source.

[0013] Optionally, the end surfaces of the diverter plate connected to the first connecting shaft are respectively provided with first covering plates extending toward the feed port, and the feed port is provided with a second covering plate for covering the gap between the first covering plate and the shell.

[0014] A second object of the present disclosure is to provide a fuel delivery system comprising the pneumatically purged anti-blocking three-way baffle described in any one of the above.

[0015] Through the above technical solution, a nozzle connected to an external gas source ejects gas on the material loading end face and toward the outside of the material loading end face. When impurities have already adhered to the manifold, the nozzle can assist in cleaning the impurities on the manifold. At the same time, when the three-way baffle is in operation, the gas ejected through the nozzle can prevent impurities from adhering to the manifold and forming lumps. In other words, the three-way baffle provided by the present disclosure has the function of assisting in cleaning impurities and preventing impurities from adhering to it, thereby effectively preventing the problem of lumps forming on the manifold and eliminating the need for operators to manually clean lumps multiple times, thereby improving production efficiency.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0018] Figure 1 is a cross-sectional view of a three-way baffle provided in accordance with an exemplary embodiment of the present disclosure;

[0019] Figure 2 yes Figure 1 Enlarged view of part A;

[0020] Figure 3 and Figure 4 Schematic diagram of a diverter plate in different positions in a three-way baffle provided by an exemplary embodiment of the present disclosure;

[0021] Figure 5 Schematic diagram of the internal structure of the diverter plate in the three-way baffle provided in an exemplary embodiment of the present disclosure.

[0022] Description of Reference Numerals

[0023] 1-shell, 11-feed port, 12-first discharge port, 13-second discharge port, 14-first connecting shaft, 141 hollow pipe, 2-diverter plate, 21-loading end face, 22-air flow channel, 221-first air cavity, 222-second air cavity, 23-partition plate, 24-air inlet, 3-nozzle, 4-electro-hydraulic push rod, 41-connecting rod, 42-piston rod, 43-second connecting shaft, 5-first cover plate, 6-second cover plate. DETAILED DESCRIPTION

[0024] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0025] In this disclosure, unless otherwise indicated, directional terms generally refer to the orientation of the relevant components in actual use. "Inside" and "outside" refer to the inside and outside of the corresponding component outline. Furthermore, when the following description refers to the accompanying drawings, unless otherwise indicated, identical numbers in different drawings represent identical or similar elements. The terms "first," "second," and the like, used in this disclosure, are intended to distinguish one element from another and do not convey sequential or significant meanings.

[0026] The present invention provides a pneumatic blowing anti-blocking three-way baffle, such as Figures 1 to 5 As shown, it includes a shell 1 and a diverter plate 2 arranged inside the shell 1, a feed port 11, a first discharge port 12 and a second discharge port 13 are provided on the shell 1, and the diverter plate 2 is configured to be flippable so that the feed port 11 is selectively connected to the first discharge port 12 or the second discharge port 13, and the diverter plate 2 includes a loading end face 21, and a plurality of nozzles 3 that can be connected to an external gas source are provided on the loading end face 21.

[0027] Through the above technical solution, the nozzle 3, which is connected to the external gas source, is positioned on the material loading end face 21 and ejects gas outward from the material loading end face 21. When impurities have already adhered to the manifold 2, the nozzle 3 can assist in cleaning the impurities from the manifold 2. Furthermore, when the three-way baffle is in operation, the gas ejected through the nozzle can prevent impurities from adhering to the manifold 2 and forming lumps. In other words, the three-way baffle provided by the present disclosure has the function of assisting in cleaning impurities and preventing impurities from adhering to it, thereby effectively preventing the formation of lumps on the manifold and eliminating the need for operators to manually clean lumps multiple times, thereby improving production efficiency.

[0028] An air flow channel 22 for communicating with an external air source can be opened inside the diverter plate 2, and the nozzle 3 is connected to the air flow channel 22. The air flow channel 22 is arranged inside the diverter plate 2 to effectively reduce the space occupied by the internal space of the three-way baffle. The diverter plate 2 can also protect the air flow channel 22 to ensure the use effect of the air flow channel 22. At the same time, the air flow channel 22 can also reduce the weight of the diverter plate 2 and reduce noise during use. When the material collides with the diverter plate 2 during transportation, the air flow channel 22 can absorb part of the noise, thereby reducing the noise. Figure 5 In the embodiment, the air flow channel 22 can be designed to occupy the rectangular space inside the diverter plate 2 as much as possible, so that the area of ​​the material loading end surface 21 that the air flow channel 22 can involve is larger and the number of nozzles 3 that can be set is also increased.

[0029] At the same time, a partition plate 23 perpendicular to the loading end surface 21 can be provided within the air flow channel 22. The partition plate 23 is used to separate the air flow channel 22 into a first air cavity 221 and a second air cavity 222 that are not connected to each other. The first air cavity 221 and the second air cavity 222 are each provided with an air inlet 24 for connecting to an external air source. Correspondingly, the first air cavity 221 and the second air cavity 222 each have an air inlet 24, so that the air flow channel 22 is divided into two independently operable parts. When the diverter plate 2 is in use, depending on the adhesion and adhesion location of impurities, one of the first air cavity 221 or the second air cavity 222 can be selectively connected to the external air source. The first air cavity 221 and the second air cavity 222 can also be alternately connected to the external air source, so that the first air cavity 221 and the second air cavity 222 can work alternately. This can achieve the effect of assisting in cleaning impurities and preventing impurity adhesion in a portion of the loading end surface 21. The use of the diverter plate 2 is more flexible, ensuring the use effect while saving resources and effectively reducing operating costs.

[0030] The partition plate 23 can be constructed to extend in a square wave shape along a cross section parallel to the material loading end surface 21. Figure 5The square wave-shaped extending partition plate 23 enables the first air cavity 221 and the second air cavity 222 to mesh with each other in shape, and the first air cavity 221 and the second air cavity 222 can be distributed more evenly and extend over a larger area. Figure 5 In the embodiment, the partition plate 23 can be composed of a horizontal plate portion and a vertical plate portion. The horizontal plate portion can be arranged adjacent to both sides of the air flow channel 22 and retain a gap to ensure the gas circulation effect in the first air cavity 221 or the second air cavity 222, and to increase the extension area of ​​the first air cavity 221 and the second air cavity 222. At the same time, due to the square wave-shaped extension of the partition plate 23, the spacing between the vertical plate portions is consistent, so that the number of nozzles 3 that can be placed in each part of the area of ​​the two adjacent vertical plate portions can be the same, ensuring that the operating effect of the first air cavity 221 and the second air cavity 222 can be consistent. By setting the shape of the partition plate 23, the nozzles 3 on the first air cavity 221 and the second air cavity 222 can cover as much area on the loading end face 21 as possible during operation, ensuring that the first air cavity 221 and the second air cavity 222 can also play a better role in assisting in cleaning impurities and preventing impurities from adhering when operating alone.

[0031] exist Figure 3 In this case, the initial position of the diverter plate 2 is horizontal. Thus, when the diverter plate 2 is turned clockwise or counterclockwise, only one loading end face 21 is used to contact the material. In this case, the nozzle 3 can be set on one loading end face 21. Figure 4 In this case, the initial position of the manifold 2 is vertical. Thus, when the manifold 2 is turned clockwise or counterclockwise, it has two material-carrying end surfaces 21. At this time, the two opposing surfaces of the manifold 2 can each form two material-carrying end surfaces 21. The nozzles 3 on one material-carrying end surface 21 can be arranged along the first air cavity 221, while the nozzles 3 on the other material-carrying end surface 21 can be arranged along the second air cavity 222. In this way, the nozzles 3 can operate on both material-carrying end surfaces 21 separately or simultaneously, ensuring the effectiveness of the nozzles 3 while increasing the adjustability of the manifold 2.

[0032] The nozzle opening of the nozzle 3 can be configured to gradually expand along the direction of gas emission. This allows the gas to be emitted in a fan-shaped manner, with a wider range, thereby improving the effectiveness of the nozzle 3. Furthermore, when the first air cavity 221 or the second air cavity 222 is operating independently, the nozzle 3 can be configured to be openable and clogging to prevent dust and other impurities from clogging the nozzle 3 or to prevent impurities from entering the air flow channel 22 through the nozzle 3, thereby increasing the service life of the nozzle 3.

[0033] In some embodiments, as Figure 1 and Figure 2As shown, the housing 1 may be provided with a first connecting shaft 14 that passes through the housing 1. The first connecting shaft 14 is rotatably connected to the housing 1. The portion of the first connecting shaft 14 inside the housing 1 is used to connect to the diverter plate 2, and the portion of the first connecting shaft 14 outside the housing 1 is used to connect to the driving device to flip the diverter plate 2. In this way, the diverter plate 2 can be flipped by rotating the first connecting shaft 14. At the same time, after flipping to the specified position, the position of the diverter plate 2 can also be fixed by the driving device to prevent the diverter plate 2 from flipping and misalignment during use. However, it should be noted that Figure 2 In the embodiment, two first connecting shafts 14 can be provided, and correspondingly, two driving devices can also be provided. However, when the two driving devices are driven simultaneously, synchronization issues need to be considered to avoid damage to the first connecting shaft 14 and the baffle. At the same time, to ensure the flipping effect of the diverter plate 2, when there is only one driving device, its power and connection strength with the first connecting shaft 14 need to be guaranteed to extend its service life.

[0034] Among them, the driving device may include an electro-hydraulic push rod 4 and a connecting rod 41, and the end of the piston rod 42 in the electro-hydraulic push rod 4 is provided with a second connecting shaft 43 that is consistent with the extension direction of the first connecting shaft 14. One end of the connecting rod 41 is fixedly sleeved on the outer periphery of the first connecting shaft 14, and the other end of the connecting rod 41 is rotatably sleeved on the outer periphery of the second connecting shaft 43. In this way, the driving device can convert the linear motion of the piston rod 42 in the electro-hydraulic push rod 4 into the rotation of the first connecting shaft 14, so that the flipping angle of the diverter plate 2 can be more accurately controlled, and the stability of the diverter plate 2 is also improved. The driving device can also select a motor, and the output shaft of the motor is coaxially installed with the first connecting shaft 14. The rotation of the output shaft of the motor drives the rotation of the first connecting shaft 14 to drive the diverter plate 2 to flip. In the present disclosure, the driving device can select any suitable structure, as long as it can realize the flipping of the diverter plate 2. The specific structure of the driving device is not specifically limited in the present disclosure.

[0035] A hollow pipe 141 may be provided inside the first connecting shaft 14. One end of the hollow pipe 141 is connected to the nozzle 3, and the other end of the hollow pipe 141 is connected to an external air source. This further utilizes the space within the first connecting shaft 14, eliminating the need for a pipe connected to an external air source and reducing the space occupied by the three-way baffle.

[0036] In the present disclosure, the end surfaces of the diverter plate 2 connected to the first connecting shaft 14 can be respectively provided with first cover plates 5 extending toward the feed port 11, and the feed port 11 is provided with a second cover plate 6 for covering the gap between the first cover plate 5 and the shell 1. Since the diverter plate 2 needs to be flipped, a gap needs to be left between it and the shell 1 to avoid the diverter plate 2 from getting stuck. However, when the three-way baffle is in use, the material may be stuck in the gap, causing the diverter plate 2 to flip poorly or directly flow out of the gap to the wrong outlet, causing material waste. Therefore, the end surfaces of the diverter plate 2 connected to the first connecting shaft 14 can be respectively provided with first cover plates 5 extending toward the feed port 11, which not only ensures the flipping effect of the diverter plate 2 but also prevents the material from entering the gap. At the same time, the second cover plate 6 also plays a guiding role for the material while covering the gap at the feed port 11.

[0037] According to a second aspect of the present disclosure, a coal conveying system is further provided, comprising the three-way baffle of any one of the above embodiments, and having all the beneficial effects thereof, which will not be described in detail here.

[0038] The preferred embodiments of the present disclosure are described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple variations can be made to the technical solutions of the present disclosure, and these simple variations all fall within the scope of protection of the present disclosure. It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner unless there is any contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0039] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A pneumatic blowing anti-blocking three-way baffle, characterized in that: The invention comprises a shell and a diverter plate arranged inside the shell, the shell is provided with a feed port, a first discharge port and a second discharge port, the diverter plate is configured to be flippable so that the feed port is selectively connected with the first discharge port or the second discharge port, the diverter plate comprises a loading end face, a plurality of nozzles that can be connected with an external air source are provided on the loading end face, an air flow channel for connecting with an external air source is provided inside the diverter plate, the nozzles are connected with the air flow channel, a partition plate perpendicular to the loading end face is provided in the air flow channel, the partition plate is used to separate the air flow channel into a first air cavity and a second air cavity that are not connected with each other, and the first air cavity and the second air cavity are respectively provided with an air inlet hole for connecting with an external air source.

2. The pneumatic blowing anti-blocking three-way baffle according to claim 1 is characterized in that: The partition plate extends in a square wave shape along a cross section parallel to the material loading end surface.

3. The pneumatic blowing anti-blocking three-way baffle according to claim 2 is characterized in that: The two opposite plate surfaces of the diverter plate are respectively formed as the two material-carrying end surfaces, wherein the nozzles on one of the material-carrying end surfaces are arranged along the first air cavity, and the nozzles on the other material-carrying end surface are arranged along the second air cavity.

4. The pneumatic blowing anti-blocking three-way baffle according to claim 1 is characterized in that: The nozzle opening of the nozzle is configured to gradually expand along the gas ejection direction.

5. The pneumatic blowing anti-blocking three-way baffle according to claim 1 is characterized in that: The shell is provided with a first connecting shaft that passes through the shell. The first connecting shaft is rotatably connected to the shell. The part of the first connecting shaft inside the shell is used to connect with the diverter plate, and the part of the first connecting shaft outside the shell is used to connect with the driving device to flip the diverter plate.

6. The pneumatic blowing anti-blocking three-way baffle according to claim 5 is characterized in that: The driving device includes an electro-hydraulic push rod and a connecting rod. The end of the piston rod in the electro-hydraulic push rod is provided with a second connecting shaft in the same extension direction as the first connecting shaft. One end of the connecting rod is fixedly sleeved on the outer periphery of the first connecting shaft, and the other end of the connecting rod is rotatably sleeved on the outer periphery of the second connecting shaft.

7. The pneumatic blowing anti-blocking three-way baffle according to claim 5 is characterized in that: A hollow pipeline is provided inside the first connecting shaft, one end of the hollow pipeline is connected to the nozzle, and the other end of the hollow pipeline is connected to an external gas source.

8. The pneumatic blowing anti-blocking three-way baffle according to claim 7 is characterized in that: The end surfaces of the diverter plate connected to the first connecting shaft are respectively provided with first covering plates extending toward the feed port, and the feed port is provided with a second covering plate for covering the gap between the first covering plate and the shell.

9. A coal transportation system, characterized in that: The invention comprises the pneumatic blowing anti-blocking three-way baffle as described in any one of claims 1 to 8.

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