A pneumatic coal feeder outlet cleaning device

By combining pneumatic and rotary cleaning components, the problem of blockage at the coal feeder outlet was solved, achieving efficient and automated cleaning and improving the operational stability and efficiency of coal-fired power plants.

CN117485908BActive Publication Date: 2026-03-27HUANENG GUANYUN CLEAN ENERGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-10-10
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Traditional coal feeders are prone to clogging at the outlet, making cleaning inconvenient and ineffective, which affects the load-carrying capacity of coal-fired power plant units.

Method used

The cleaning components employ a combination of pneumatic and rotary types, including pneumatic cleaning parts and rotary cleaning assemblies. They clean blockage materials by high-pressure gas injection and rotary crushing, and combine telescopic and sliding structures to achieve automated control.

Benefits of technology

It improved cleaning efficiency, simplified the cleaning process, reduced labor costs, ensured stable equipment operation, prevented equipment damage, and enhanced the load-bearing capacity of coal-fired power plant units.

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Abstract

The present application belongs to the technical field of cleaning equipment, and particularly relates to a pneumatic coal feeder outlet cleaning device, wherein a material falling cavity is arranged in a coal falling component; a material guiding cavity is arranged in a material guiding component, and the material guiding cavity is arranged at the bottom of the coal falling component; the material guiding cavity and the material falling cavity are mutually penetrated, and a conveying component is arranged in the material guiding cavity; a cleaning component is arranged on the coal falling component; a closing component is arranged on the coal falling component and located above the cleaning component; during material transportation, the closing component is opened, the material enters the material falling cavity through the coal falling component, enters the material guiding component, and is transported outward by the conveying component; when the problem of material accumulation occurs, the closing component is closed, the material falling cavity is blocked, and the material cannot fall; the material blocked at the bottom of the material falling cavity is crushed by the cleaning component, so that the blocked material falls into the conveying component; the internal cleaning mode is adopted to ensure the overall sealing performance, and the pneumatic or rotary cleaning component is adopted to enhance the cleaning efficiency.
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Description

Technical Field

[0001] This invention belongs to the field of cleaning equipment technology, and in particular relates to a pneumatic coal feeder outlet cleaning device. Background Technology

[0002] The coal feeder is a crucial component of the pulverizing system in a coal-fired boiler. The feeding process is a continuous belt feed, transporting coal from the user's coal hopper or other feeding equipment. It consists of a feeder hopper, a conveyor belt, and a bottom cleaning device. Coal accumulated at the bottom of the feeder is scraped into the pulverizer's chute by a cleaning chain. However, when the incoming coal has high moisture content and viscosity, it easily accumulates at the feeder outlet, causing blockages. When blockages occur, the feeder must be shut down, the hopper cover opened, and the accumulated coal cleared, severely impacting the load-carrying capacity of the coal-fired power plant unit. During the handling process, after determining the location of the blocked chute, if the blockage is minor, a hammer can be used to strike the chute to dislodge the remaining coal. However, repeated striking can damage the chute and flanges. In cases of severe blockage, three or four small holes are often drilled at the blockage point in the chute, and iron bars or steel bars are used for clearing. This is not only inefficient but also prone to carrying coal out, causing powder spillage. Summary of the Invention

[0003] The purpose of this invention is to provide a pneumatic coal feeder outlet cleaning device to solve the technical problems of inconvenient cleaning and poor cleaning effect after material blockage in traditional coal feeders.

[0004] To solve the above-mentioned technical problems, the specific technical solution of the present invention is as follows:

[0005] In some embodiments of this application, a pneumatic coal feeder outlet cleaning device is provided, comprising:

[0006] A coal feeding component, wherein the coal feeding component has a material feeding chamber inside, and its top is connected to the feeding component;

[0007] A material guiding component, wherein the material guiding component has a material guiding cavity inside, which is located at the bottom of the coal falling component and connected to the coal falling component;

[0008] The material guiding cavity and the material dropping cavity are interconnected, and the material guiding cavity is equipped with a conveying component;

[0009] A cleaning component is provided on the coal feeding component, and its cleaning end extends through the coal feeding component into the material feeding chamber;

[0010] A sealing component is provided on the coal dropping component, located above the cleaning component, and its telescopic end penetrates the coal dropping component into the interior.

[0011] During material transportation, the sealing component opens, and the material enters the material discharge chamber through the coal dropping component and then enters the material guiding component. It is then transported outward by the conveying component. When material accumulation occurs, the sealing component closes, blocking the material discharge chamber and preventing the material from falling. The cleaning component then crushes the material blocking the bottom of the material discharge chamber, allowing the blocked material to fall onto the conveying component.

[0012] In some embodiments of this application, the cleaning component is a pneumatic structure, including:

[0013] The first support component is located in the material discharge chamber and is fixedly connected to the coal discharge component. The bottom of the first support component is also provided with a first sliding groove.

[0014] A gas source component is provided on the coal falling component, and its gas outlet end passes through the coal falling component into the material falling chamber;

[0015] The first sliding component is disposed in the first sliding groove, and a driving component is provided inside it, and it is slidably connected to the first sliding groove;

[0016] The first telescopic component is disposed on the first sliding component and is fixedly connected to the first sliding component;

[0017] A pneumatic cleaning component is provided on the telescopic end of the first telescopic component, and its air inlet end is connected to the air outlet end of the air source component through a flexible connecting component.

[0018] In some embodiments of this application, the pneumatic cleaning component is a modular structure, including:

[0019] The first connecting component has an air inlet at its top and an air chamber inside.

[0020] The air inlet is connected to the air outlet of the air source component via a flexible connecting component;

[0021] The jetting component is arranged in a ring array on the first connecting component and is fixedly connected to the first connecting component, and it passes through the first connecting component into the air chamber.

[0022] In some embodiments of this application, the cleaning component is a rotary structure, including:

[0023] The second support component is a double-rod structure, which is located in the material discharge chamber and is fixedly connected to the coal discharge component.

[0024] The second telescopic component is located between the second support components and is fixedly connected to the coal dropping component.

[0025] The second sliding component is disposed on the second support component and is slidably connected to the second support component. It is also connected to the telescopic end of the second telescopic component.

[0026] A rotating component is provided on a second sliding component and is fixedly connected to the second sliding component. A cleaning component is provided on its rotating end.

[0027] In some embodiments of this application, the cleaning component is a combination of pneumatic and rotary structures; wherein the spacing between the second support components is greater than the width of the first support component, and the spacing between the second support components is greater than the outer diameter of the pneumatic cleaning component.

[0028] In some embodiments of this application, a detection component is further included, the detection component being disposed on the cleaning component;

[0029] Detection components, including:

[0030] A first position detection component is disposed on a first sliding component;

[0031] A second position detection component is located at the bottom of the pneumatic cleaning component;

[0032] A third position detection component is disposed on the second sliding component.

[0033] In some embodiments of this application, a control component is further included, the control component being disposed on the coal falling component;

[0034] Control components, including:

[0035] The signal receiving component is electrically connected to the detection component. It receives the distance data between the first sliding component and the side wall of the material discharge chamber detected by the first position detection component, the distance data between the pneumatic cleaning component and the conveying component detected by the second position detection component, and the distance data between the second sliding component and the side wall of the material discharge chamber detected by the third position detection component, and converts the corresponding data into digital signals.

[0036] The processing unit is electrically connected to the signal receiving unit, and it analyzes and processes the digital signal converted by the signal receiving unit and generates a command signal.

[0037] A signal input component is electrically connected to the processing component, which converts external action commands into digital signals and transmits them to the processing component.

[0038] The command output component is electrically connected to the processing component, and is also electrically connected to the drive component, the air source component, the first telescopic component, the second telescopic component, and the rotating component.

[0039] Compared with the prior art, the beneficial effects of the present invention are as follows: by providing pneumatic and rotary cleaning components at the bottom of the coal feeding component to clean the material blocked at the bottom of the feeding chamber, the rotary cleaning component crushes large pieces of material to facilitate their falling, the pneumatic cleaning component cleans the material adhering to the side wall of the feeding chamber, thereby improving the cleaning effect, and by providing a telescopic structure and a sliding structure, the cleaning component can thoroughly clean the blocked coal material, further improving the cleaning effect. Attached Figure Description

[0040] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0041] Figure 1 This is a schematic diagram of the overall structure of the cleaning component provided in an embodiment of the present invention, which is pneumatic.

[0042] Figure 2 This is a schematic cross-sectional view of the first support component provided in an embodiment of the present invention;

[0043] Figure 3 This is a schematic diagram of the pneumatic cleaning component structure provided in an embodiment of the present invention;

[0044] Figure 4 This is a schematic diagram of the overall structure of the cleaning component provided in an embodiment of the present invention, which is a rotary type.

[0045] Figure 5 This is a schematic diagram of the structure of the second support component provided in an embodiment of the present invention;

[0046] Figure 6 This is a schematic diagram of the overall structure of the combination of pneumatic and rotary types provided in an embodiment of the present invention. Detailed Implementation

[0047] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0048] To better understand the purpose, structure, and function of this invention, the invention will be described in further detail below with reference to the accompanying drawings.

[0049] According to some embodiments of this application, including:

[0050] The coal feeding component 1 has a material feeding chamber 101 inside, and its top is connected to the feeding component; the coal feeding component 1 is a tubular structure connected to the feeding device, which is used to convey powdery, granular, lumpy and other materials, and is not limited to coal.

[0051] The material guiding component 2 has a material guiding cavity 201 inside, which is located at the bottom of the coal dropping component 1 and connected to the coal dropping component 1; the material guiding cavity 201 communicates with the coal dropping cavity 101, and the material guiding cavity 201 is provided with a conveying component 4.

[0052] The material guiding component 2 is a tubular structure, which is fixedly connected to the coal dropping component 1. The two are kept in a constant position by bolts, welding, riveting and other connecting parts. The conveying component 4 inside the material guiding component 2 is a conveyor belt structure. The transmission component will carry the material falling from the coal dropping component 1 to the next stage device to avoid the accumulation of material in the material guiding component 2.

[0053] The cleaning component 3 is disposed on the coal feeding component 1, and its cleaning end penetrates through the coal feeding component 1 into the material feeding chamber 101; that is, the cleaning component 3 is a self-cleaning device inside the material feeding chamber 101. It is indispensable that the cleaning component 3 is controlled by an external control device, which cleans the material blocking the bottom of the material feeding chamber 101 so that the material in the material feeding chamber 101 is crushed and falls into the guide chamber 201.

[0054] The sealing component 5 is located on the coal dropping component 1, above the cleaning component 3, and its telescopic end extends through the coal dropping component 1 into the interior. The sealing component 5 is a device that can block the space of the material dropping chamber 101. It can adopt a mechanical, hydraulic or other telescopic structure. By extending its telescopic end, it can close the material dropping chamber 101, thereby preventing the continuous falling of materials during the cleaning process, which would affect the cleaning effect and ensure the stability of the cleaning process.

[0055] The technical effects achieved by the above technical solution in the embodiments of this application are as follows:

[0056] During material transportation, the sealing component 5 opens, allowing material to enter the discharge chamber 101 via the coal discharge component 1, then into the guiding component 2, and finally transported outwards by the conveying component 4. In the event of material accumulation, the sealing component 5 closes, blocking the discharge chamber 101 and preventing material from falling. The cleaning component 3 then crushes the material clogging the bottom of the discharge chamber 101, causing it to fall onto the conveying component 4. This internal cleaning method not only ensures the equipment's airtightness but also simplifies the cleaning process and improves efficiency through external control, providing a foundation for enhanced cleaning effectiveness.

[0057] In this embodiment of the application, the above technical solution is adopted, wherein the cleaning component 3 is a pneumatic structure, including:

[0058] The first support component 301 is disposed in the material discharge chamber 101 and is fixedly connected to the coal discharge component 1. The bottom of the first support component 301 is also provided with a first chute 3011. That is, the first support component 301 is a plate-shaped structure and is mounted in the material discharge chamber 101. It should be noted that the first support component 301 does not block the material discharge chamber 101. In order to avoid material accumulation on the top of the first support component 301, an arc-shaped structure is provided on the top of the first support component 301. By adopting the arc-shaped structure, the material can flow quickly to both sides when passing the top of the first support component 301, thereby avoiding accumulation on the first support component 301.

[0059] The gas source component 302 is disposed on the coal falling component 1, and its gas outlet end passes through the coal falling component 1 to the material falling chamber 101; the gas source component 302 is a gas generating device that can generate high-pressure gas, and it can be an air pump, etc., but the present invention is not limited thereto.

[0060] The first sliding component 303 is disposed in the first slide groove 3011. It has a driving component inside and is slidably connected to the first slide groove 3011. The first sliding component 303 is a slider structure. It has a stepper motor or servo motor inside. By activating the driving component, the first sliding component 303 is driven to move in the first slide groove 3011. In order to facilitate the movement of the first sliding component 303 in the first slide groove 3011, corresponding structures such as wheels, teeth, chains, etc. can be set on the first slide groove 3011 and the first sliding component 303. Since this structure has been involved in related fields, it will not be described in detail.

[0061] The first telescopic component 304 is disposed on the first sliding component 303 and is fixedly connected to the first sliding component 303. The first telescopic component 304 is a device whose output end can extend longitudinally. It can adopt a structure of pneumatic telescopic, hydraulic telescopic and mechanical telescopic, and the present invention does not limit it.

[0062] A pneumatic cleaning component 305 is disposed on the telescopic end of the first telescopic component 304, and its air inlet end is connected to the air outlet end of the air source component 302 through a flexible connecting component.

[0063] It should be noted that the pneumatic cleaning component 305 is a modular structure, including:

[0064] The first connecting component 3051 has an air inlet 3052 at its top, and its interior is an air chamber. The air inlet 3052 is connected to the air outlet of the air source component 302 through a flexible connecting component (connecting pipe). That is, the first connecting component 3051 is a hollow shell structure, which can be in the form of a disc, rectangle, ring, etc. The specific shape is selected according to actual needs and is not limited here.

[0065] The jetting component 3053 is a nozzle-type structure. The jetting component 3053 is arranged in a ring array on the first connecting component 3051 and is fixedly connected to the first connecting component 3051. It passes through the first connecting component 3051 into the air chamber. That is, after the gas enters the interior of the first connecting component 3051, it exits through each jetting component 3053, thereby cleaning the material adhering to the cavity wall in the material discharge cavity 101.

[0066] The technical effects achieved by the above technical solution in the embodiments of this application are as follows:

[0067] The first sliding component 303 is moved in the first slide groove 3011 by the external control terminal, and the first telescopic component 304 is extended longitudinally. During the extension process, the air source component 302 injects high-pressure gas into the first connecting component 3051, and the gas is sprayed onto the cavity wall through the jet component 3053, thereby causing the material attached to the cavity wall to fall off, thus achieving a cleaning effect. By adopting the gas jet cleaning method, not only will the cavity wall not be damaged, but the material attached to the cavity wall can also be effectively cleaned, providing a basis for improving the cleaning effect.

[0068] In this embodiment, the above technical solution is adopted, wherein the cleaning component 3 is a rotary structure, including:

[0069] The second support component 3001 is a double-rod structure, which is located in the material discharge chamber 101 and is fixedly connected to the coal discharge component 1; that is, there is a gap between the second support components 3001, which is erected in the material discharge chamber 101.

[0070] The second telescopic component 3002 is disposed between the second support components 3001 and is fixedly connected to the coal dropping component 1. The second telescopic component 3002 is a device whose output end can extend laterally. It can adopt a structure of pneumatic telescopic, hydraulic telescopic, or mechanical telescopic, and the present invention does not limit it.

[0071] The second sliding component 3003 is disposed on the second support component 3001 and is slidably connected to the second support component 3001. It is also connected to the telescopic end of the second telescopic component 3002. The second sliding component 3003 is a block structure that is mounted on the second support component 3001. Driven by the second telescopic component 3002, the second sliding component 3003 slides on the second support component 3001.

[0072] A rotating component 3004 is mounted on the second sliding component 3003 and is fixedly connected to it. A cleaning component 3005 is provided on its rotating end. That is, the rotating component 3004 is a rotary motor, and a plurality of cleaning rollers are provided on its rotating end. When the rotary motor is started, the cleaning rollers are rotated, thereby crushing the lumpy material.

[0073] It should be noted that the cleaning component 3005 can adopt a blade-shaped structure arranged in an array, or a spiral blade-shaped structure or other shapes and structures with cleaning and pulverizing functions. This invention does not impose any restrictions and the choice can be made according to actual needs.

[0074] The technical effects achieved by the above technical solutions in the embodiments of this application are as follows:

[0075] When a complete blockage occurs, the rotating component 3004 is activated to rotate, thereby causing the cleaning component 3005 to rotate. The second telescopic component 3002 drives the second sliding component 3003 to move laterally, thereby enabling the cleaning component 3005 to perform lateral cleaning, so that the lumps of material are completely crushed. The use of the blade-shaped cleaning component 3005 improves the cleaning effect.

[0076] In this embodiment, the technical solution described above is adopted, wherein the cleaning component 3 is a combination structure of pneumatic and rotary types; wherein the spacing of the second support component 3001 is greater than the width of the first support component 301, and the spacing of the second support component 3001 is greater than the outer diameter of the pneumatic cleaning component 305.

[0077] The technical effects achieved by the above technical solutions in the embodiments of this application are as follows:

[0078] When encountering a complete blockage of material, the lumps of material are first crushed by the rotary cleaning component 3. After crushing, the pneumatic cleaning component 3 further cleans the material. Since the spacing of the second support component 3001 is greater than the width of the first support component 301 and the spacing of the second support component 3001 is greater than the outer diameter of the pneumatic cleaning component 305, the extension of the first telescopic component 304 is not affected by the second support component 3001 and can clean the multi-dimensional cavity walls, thus enhancing the cleaning effect and making the cleaning more thorough.

[0079] The technical solutions described in the above embodiments are adopted in this application embodiment, and further include: a detection component, which is disposed on the cleaning component 3;

[0080] Detection components, including:

[0081] The first position detection component is disposed on the first sliding component 303. The first position detection component is a distance sensor, which detects the distance data between the first sliding component 303 and the side wall of the material discharge chamber 101 to avoid excessive movement of the first sliding component 303, which would cause the pneumatic cleaning component 305 to contact the chamber wall.

[0082] The second position detection component is located at the bottom of the pneumatic cleaning component 305. The second position detection component is a distance sensor, which detects the distance data between the pneumatic cleaning component 305 and the conveying component 4 to prevent the first telescopic component 304 from over-extending and causing the pneumatic cleaning component 305 to contact the conveying component 4.

[0083] The third position detection component is disposed on the second sliding component 3003. The third position detection component is a distance sensor. The distance data between the second sliding component 3003 and the side wall of the material discharge chamber 101 detected by the third position detection component is to prevent the second telescopic component 3002 from causing the second sliding component 3003 to extend excessively, so that the cleaning component 3005 contacts the chamber wall.

[0084] It also includes: a control component, which is disposed on the coal cutting component 1;

[0085] Control components, including:

[0086] The signal receiving component is electrically connected to the detection component. It receives the distance data between the first sliding component 303 and the side wall of the material discharge chamber 101 detected by the first position detection component, the distance data between the pneumatic cleaning component 305 and the conveying component 4 detected by the second position detection component, and the distance data between the second sliding component 3003 and the side wall of the material discharge chamber 101 detected by the third position detection component, and converts the corresponding data into digital signals.

[0087] The processing unit is electrically connected to the signal receiving unit, and it analyzes and processes the digital signal converted by the signal receiving unit and generates a command signal.

[0088] A signal input component is electrically connected to the processing component, which converts external action commands into digital signals and transmits them to the processing component.

[0089] The command output component is electrically connected to the processing component and is also electrically connected to the drive component, the air source component 302, the first telescopic component 304, the second telescopic component 3002, and the rotating component 3004.

[0090] The technical effects achieved by the above technical solution in the embodiments of this application are as follows:

[0091] By setting up multiple detection components, collisions are avoided during equipment operation, ensuring stable operation. At the same time, control components are used for operation, achieving automated cleaning, simplifying operation, and reducing labor costs.

[0092] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0093] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0094] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0095] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0096] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pneumatic coal feeder outlet cleaning device, characterized in that, include: A coal feeding component, wherein the coal feeding component has a material feeding chamber inside, and its top is connected to the feeding component; A material guiding component, wherein the material guiding component has a material guiding cavity inside, which is located at the bottom of the coal falling component and connected to the coal falling component; The material guiding cavity and the material dropping cavity are interconnected, and the material guiding cavity is equipped with a conveying component; A cleaning component is provided on the coal feeding component, and its cleaning end extends through the coal feeding component into the material feeding chamber; A sealing component is provided on the coal dropping component, located above the cleaning component, and its telescopic end penetrates the coal dropping component into the interior. During material transportation, the sealing component opens, and the material enters the material discharge chamber through the coal dropping component and then enters the material guiding component. It is then transported out by the conveying component. When material accumulation occurs, the sealing component closes, the material discharge chamber is blocked, and the material cannot fall. The cleaning component crushes the material blocking the bottom of the material discharge chamber, allowing the blocked material to fall onto the conveying component. The cleaning component is a combination of pneumatic and rotary structures; The first support component is located in the material discharge chamber and is fixedly connected to the coal discharge component. The bottom of the first support component is also provided with a first sliding groove. A gas source component is provided on the coal falling component, and its gas outlet end passes through the coal falling component into the material falling chamber; The first sliding component is disposed in the first sliding groove, and a driving component is provided inside it, and it is slidably connected to the first sliding groove; The first telescopic component is disposed on the first sliding component and is fixedly connected to the first sliding component; A pneumatic cleaning component is provided on the telescopic end of the first telescopic component, and its air inlet end is connected to the air outlet end of the air source component through a flexible connecting component. The pneumatic cleaning component is a modular structure, including: The first connecting component has an air inlet at its top and an air chamber inside. The air inlet is connected to the air outlet of the air source component via a flexible connecting component; The jetting component is arranged in a ring array on the first connecting component and is fixedly connected to the first connecting component, and it passes through the first connecting component into the air chamber; The second support component is a double-rod structure, which is located in the material discharge chamber and is fixedly connected to the coal discharge component. The second telescopic component is located between the second support components and is fixedly connected to the coal dropping component. The second sliding component is disposed on the second support component and is slidably connected to the second support component. It is also connected to the telescopic end of the second telescopic component. A rotating component is mounted on a second sliding component and is fixedly connected to the second sliding component. A cleaning component is provided on its rotating end. The spacing between the second support components is greater than the width of the first support component, and the spacing between the second support components is greater than the outer diameter of the pneumatic cleaning component.

2. The pneumatic coal feeder outlet cleaning device according to claim 1, characterized in that, Also includes: A detection component, wherein the detection component is disposed on the cleaning component; Detection components, including: A first position detection component is disposed on a first sliding component; A second position detection component is located at the bottom of the pneumatic cleaning component; A third position detection component is disposed on the second sliding component.

3. The pneumatic coal feeder outlet cleaning device according to claim 2, characterized in that, Also includes: A control component, wherein the control component is disposed on the coal feeding component; Control components, including: The signal receiving component is electrically connected to the detection component. It receives the distance data between the first sliding component and the side wall of the material discharge chamber detected by the first position detection component, the distance data between the pneumatic cleaning component and the conveying component detected by the second position detection component, and the distance data between the second sliding component and the side wall of the material discharge chamber detected by the third position detection component, and converts the corresponding data into digital signals. The processing unit is electrically connected to the signal receiving unit, and it analyzes and processes the digital signal converted by the signal receiving unit and generates a command signal. A signal input component is electrically connected to the processing component, which converts external action commands into digital signals and transmits them to the processing component. The command output component is electrically connected to the processing component, and is also electrically connected to the drive component, the air source component, the first telescopic component, the second telescopic component, and the rotating component.

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