Anti-blocking buffer type power plant coal belt feeding device and dust suppression coal conveying process

Abstract

The application relates to the technical field of coal conveying equipment of power plants, and discloses a blocking-preventing and buffering type power plant coal conveying belt discharging device, which comprises a discharging pipe body, a blocking-preventing and buffering mechanism and a dust suppressing mechanism. The blocking-preventing and buffering mechanism comprises a rotating shaft which is vertically and rotatably connected to the inside of the discharging pipe body. A plurality of threaded blades are fixedly and circumferentially arranged on the outer wall of the rotating shaft. A scattering rotating rod is fixedly arranged on the top of the rotating shaft. A servo motor, a driving plate and a transmission box are fixedly arranged on the outer wall of the discharging pipe body. Two rotating wheels are rotatably connected in the driving plate, and the two rotating wheels are drivingly connected through a transmission belt. The blocking-preventing and buffering type power plant coal conveying belt discharging device and dust suppressing coal conveying process drive the rotating wheels and the transmission belt through the servo motor, drive the helical blades on the rotating shaft and the scattering rotating rod to rotate, mechanically scatter the blocky and agglomerated coal, and forcibly guide and convey the coal, so that the blocking can be eliminated without stopping the machine and manually cleaning.

Description

Technical Field

[0001] This invention relates to the field of power plant coal conveying equipment technology, and in particular to an anti-clogging buffer type power plant coal conveying belt unloading device and a dust suppression coal conveying process. Background Technology

[0002] The material discharge device is a key transfer device in the coal conveyor belt system of thermal power plants. It is fixedly installed between the material discharge point of the upper coal conveyor belt and the lower coal conveyor belt. It is used to guide the coal from a high place and collect it to the center of the downstream conveyor belt, ensuring the continuity and stability of the coal during the transfer process. It is an important hub connecting all links of the coal conveying system.

[0003] Currently, most coal conveying systems in power plants use vertically or inclined discharge pipes for their unloading devices. These pipes typically have fixed spiral guide plates or wear-resistant liners installed inside, and the coal is guided by its own gravity. To prevent the coal from generating a large amount of dust when it falls, some existing devices have a sealing cover at the top inlet of the discharge pipe and an external independent dust extraction system for passive dust collection. At the same time, to avoid the coal from impacting and damaging the downstream conveyor belt, a few devices will install fixed buffer baffles or suspended chain curtains at the discharge outlet.

[0004] However, the aforementioned existing material feeding devices have obvious technical defects in actual use: Firstly, in terms of preventing blockages, coal in thermal power plants often contains lumpy agglomerates, which are difficult to effectively clear by relying solely on fixed flow guiding structures. These agglomerates are prone to sticking and accumulating on the pipe walls and at the material inlet, leading to interruptions in coal transportation. Conventional clearing methods require manual cleaning after shutdown, which seriously affects operational efficiency. Secondly, in terms of dust suppression, the existing external exhaust system can only create a local negative pressure at the feed inlet, which cannot effectively capture the dust in the middle and bottom of the feed pipe. Moreover, the airflow generated by the impact of the feed can easily squeeze fine dust particles out of the equipment gaps, causing serious environmental dust pollution. Therefore, a clog-prevention buffer type coal conveyor belt unloading device and dust-suppressing coal conveying process for power plants is proposed. Summary of the Invention

[0005] The present invention aims to at least partially solve one of the technical problems in the related art.

[0006] To achieve the above objectives, the present invention proposes an anti-clogging and buffer type coal conveyor belt unloading device for power plants, comprising a unloading pipe body, an anti-clogging and buffer mechanism, and a dust suppression mechanism, wherein an inlet and an outlet are fixedly installed at the top and bottom of the unloading pipe body, respectively. The anti-blocking buffer mechanism includes a rotating shaft vertically rotatably connected to the inside of the discharge tube. Multiple threaded blades are circumferentially fixedly installed on the outer wall of the rotating shaft. A dispersing rotating rod is fixedly installed on the top of the rotating shaft. A servo motor, a drive plate, and a transmission box are fixedly installed on the outer wall of the discharge tube. Two rotating wheels are rotatably connected inside the drive plate. The two rotating wheels are connected by a transmission belt. A transmission gear is fixedly installed inside the transmission box. A buffer rotating rod is horizontally rotatably connected inside the discharge port. Multiple buffer plates are circumferentially fixedly installed on the outer wall of the buffer rotating rod.

[0007] This invention provides a clog-resistant and buffer-type coal conveyor belt unloading device and dust suppression coal conveying process for power plants. It has the advantages of active anti-clogging and dispersing, airflow circulation dust suppression and dynamic buffer unloading, and solves the problems of coal blockage and inability to effectively capture dust in the middle and bottom of the unloading pipe in existing unloading devices.

[0008] Optionally, the dust suppression mechanism includes a centrifugal fan, a dust collection assembly, a dust collection pipe, and an air supply pipe, which are fixedly installed on the outer wall of the material discharge pipe. The dust collection pipe, the dust collection assembly, the centrifugal fan, and the air supply pipe are connected sequentially from top to bottom.

[0009] Furthermore, the bottom of the rotating shaft is fixedly connected to one of the rotating wheels, and the output shaft of the servo motor is fixedly connected to the other rotating wheel.

[0010] Furthermore, the transmission gear includes a first gear and a second gear that mesh with each other, and a connecting shaft is fixedly installed at the bottom of another rotating wheel, with the bottom of the connecting shaft fixedly connected to the first gear. The right end of the buffer rotating rod passes through the feed port and is fixedly connected to the second gear.

[0011] Furthermore, both the dust collection pipe and the air supply pipe have a Y-shaped structure. The top end of the dust collection pipe extends from the top left and right sides of the material discharge pipe body to the interior of the material discharge pipe body, and the bottom end of the air supply pipe extends from the bottom left and right sides of the material discharge pipe body to the interior of the material discharge pipe body.

[0012] Furthermore, the dust collection assembly includes a fixing plate fixedly installed on the outer left side of the discharge pipe body. A first threaded ring and a second threaded ring are fixedly installed at the bottom of the fixing plate. A sealing can is threadedly connected to the outer side of the first threaded ring, and a threaded connecting ring is threadedly connected to the outer side of the second threaded ring. A dust collection bag is fixedly installed at the bottom of the threaded connecting ring, and a connecting pipe is fixedly installed at the bottom of the sealing can.

[0013] Furthermore, the bottom of the dust collection pipe penetrates the fixing plate and extends into the interior of the dust collection bag, the bottom of the connecting pipe is fixedly connected to the air inlet of the centrifugal fan, and the top of the air supply pipe is fixedly connected to the air outlet of the centrifugal fan.

[0014] This invention also provides a dust suppression coal conveying process for an anti-clogging buffer type coal conveyor belt unloading device for power plants, which, based on any one of the above-mentioned anti-clogging buffer type coal conveyor belt unloading devices, includes the following steps: S1: Start the servo motor, which drives the two rotating wheels to rotate synchronously through the transmission belt, drives the rotating shaft to rotate the spiral blades and the dispersing rod, and at the same time drives the buffer rod and the buffer plate on the outside to rotate through the transmission gear; S2: Start the centrifugal fan to draw dust-laden gas from the top of the discharge pipe through the dust collection pipe, and send the dust-laden gas into the dust collection assembly for filtration; S3: The clean gas filtered by the dust collection component is sent into the air supply pipe through the outlet of the centrifugal fan, and blown into the bottom of the material drop pipe through the bottom end of the air supply pipe, forming a top-to-bottom airflow circulation inside the material drop pipe.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The anti-blocking buffer type coal conveyor belt unloading device and dust suppression coal conveying process of the power plant uses a servo motor to drive the rotating wheel and transmission belt, which drives the spiral blades and dispersing rod on the rotating shaft to rotate, mechanically dispersing the lumpy coal material and forcibly guiding and conveying it, eliminating blockages without the need for manual cleaning during machine shutdown.

[0017] 2. The anti-blocking buffer type coal conveyor belt unloading device and dust suppression coal conveying process of the power plant uses a centrifugal fan to draw dust-laden gas from the top of the unloading pipe and send air into the interior from the bottom of the air supply pipe, forming a top-to-bottom directional airflow circulation inside the unloading pipe, which captures dust at the source in the middle and bottom sections. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the anti-blocking buffer mechanism of the present invention; Figure 3 This is a schematic diagram of the rotating wheel and transmission belt structure of the present invention; Figure 4 This is a schematic diagram of the disintegrating rotating rod structure of the present invention; Figure 5 This is a schematic diagram of the buffer rod and buffer plate structure of the present invention; Figure 6 For the present invention Figure 1Enlarged structural diagram at point A in the diagram; Figure 7 This is a schematic diagram of the dust collection component structure of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Feeding pipe body; 2. Feed inlet; 3. Discharge outlet; 4. Anti-clogging buffer mechanism; 5. Dust suppression mechanism; 401. Rotating shaft; 402. Spiral blade; 403. Dispersing rod; 404. Servo motor; 405. Drive plate; 406. Transmission box; 407. Rotating wheel; 408. Transmission belt; 409. Buffer rod; 410. Buffer plate; 411. Transmission gear; 501. Centrifugal fan; 502. Dust collection assembly; 503. Dust collection pipe; 504. Air supply pipe; 5021. Fixing plate; 5022. First threaded ring; 5023. Sealed tank; 5024. Second threaded ring; 5025. Threaded connecting ring; 5026. Dust collection bag; 5027. Connecting pipe. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0021] Example 1 Please refer to Figures 1 to 5 The present invention provides a non-clogging buffer type coal conveyor belt unloading device for power plants, including unloading pipe body 1, non-clogging buffer mechanism 4 and dust suppression mechanism 5. The top and bottom of the unloading pipe body 1 are respectively fixedly installed with inlet 2 and outlet 3. The anti-blocking buffer mechanism 4 includes a rotating shaft 401 vertically rotatably connected inside the discharge pipe body 1. Multiple threaded blades 402 are fixedly installed circumferentially on the outer side wall of the rotating shaft 401. A dispersing rotating rod 403 is fixedly installed on the top of the rotating shaft 401. A servo motor 404, a drive plate 405, and a transmission box 406 are fixedly installed on the outer side wall of the discharge pipe body 1. Two rotating wheels 407 are rotatably connected inside the drive plate 405. The two rotating wheels 407 are connected by a transmission belt 408. A transmission gear 411 is fixedly installed inside the transmission box 406. A buffer rotating rod 409 is horizontally rotatably connected inside the discharge port 3. Multiple buffer plates 410 are fixedly installed circumferentially on the outer side wall of the buffer rotating rod 409. In this embodiment, three buffer plates 410 are provided.

[0022] The bottom of the rotating shaft 401 is fixedly connected to one of the rotating wheels 407, and the output shaft of the servo motor 404 is fixedly connected to the other rotating wheel 407. The transmission gear 411 includes a first gear and a second gear that mesh with each other. A connecting shaft is fixedly installed at the bottom of the other rotating wheel 407, and the bottom of the connecting shaft is fixedly connected to the first gear. The right end of the buffer rotating rod 409 passes through the feed port 3 and is fixedly connected to the second gear.

[0023] Coal is fed into the material drop pipe 1 through the feed inlet 2 from the upper coal conveyor belt. The servo motor 404 is started, and the output shaft of the servo motor 404 drives a rotating wheel 407 fixedly connected to it to rotate. The rotating wheel 407 transmits power to another rotating wheel 407 through the transmission belt 408, so as to realize the synchronous rotation of the two rotating wheels 407.

[0024] One of the rotating wheels 407 drives the rotating shaft 401 to rotate vertically inside the discharge pipe 1. Multiple spiral blades 402 on the outer wall of the rotating shaft 401 rotate synchronously with the rotating shaft 401, forcibly guiding and conveying the falling coal to prevent the coal from accumulating and sticking inside the discharge pipe 1. At the same time, the dispersing rod 403 at the top of the rotating shaft 401 rotates with the rotating shaft 401 to mechanically disperse the lumpy coal entering the discharge pipe 1, breaking the agglomerates into fine particles and eliminating the risk of blockage from the source.

[0025] When the other rotating wheel 407 rotates, its bottom connecting shaft rotates synchronously, driving the first gear in the transmission gear 411 to rotate. The first gear drives the second gear meshing with it to rotate, and the second gear drives the buffer rotating rod 409 inside the discharge port 3 to rotate horizontally. Multiple buffer plates 410 on the outer wall of the buffer rotating rod 409 rotate synchronously with the buffer rotating rod 409, and rotate to guide the coal falling to the discharge port 3. The rotation of the buffer plates 410 dynamically buffers and adjusts the falling speed of the coal, reducing the impact force of the coal on the downstream coal conveyor belt.

[0026] In the above process, the servo motor 404, as a single power source, drives the spiral blade 402, the dispersing rod 403, and the buffer plate 410 simultaneously through the two-stage transmission of the transmission belt 408 and the transmission gear 411, so that the two functional modules of anti-blocking dispersing and buffer adjustment keep running synchronously.

[0027] Example 2 Please refer to Figure 1 , 67. A clog-prevention buffer type coal conveyor belt unloading device for power plants, wherein the dust suppression mechanism 5 includes a centrifugal fan 501, a dust collection component 502, a dust collection pipe 503 and an air supply pipe 504 fixedly installed on the outer wall of the unloading pipe body 1. The dust collection pipe 503, the dust collection component 502, the centrifugal fan 501 and the air supply pipe 504 are connected sequentially from top to bottom. Both the dust collection pipe 503 and the air supply pipe 504 are Y-shaped structures. The top end of the dust collection pipe 503 extends from the top left and right sides of the unloading pipe body 1 to the inside of the unloading pipe body 1, and the bottom end of the air supply pipe 504 extends from the bottom left and right sides of the unloading pipe body 1 to the inside of the unloading pipe body 1.

[0028] The dust collection assembly 502 includes a fixing plate 5021 fixedly installed on the outer left side of the discharge pipe 1. A first threaded ring 5022 and a second threaded ring 5024 are fixedly installed at the bottom of the fixing plate 5021. A sealing tank 5023 is threadedly connected to the outer side of the first threaded ring 5022. A threaded connecting ring 5025 is threadedly connected to the outer side of the second threaded ring 5024. A dust collection bag 5026 is fixedly installed at the bottom of the threaded connecting ring 5025. A connecting pipe 5027 is fixedly installed at the bottom of the sealing tank 5023. The bottom of the dust collection pipe 503 passes through the fixing plate 5021 and extends into the interior of the dust collection bag 5026. The bottom of the connecting pipe 5027 is fixedly connected to the air inlet of the centrifugal fan 501. The top of the air supply pipe 504 is fixedly connected to the air outlet of the centrifugal fan 501.

[0029] When the centrifugal fan 501 is started, the air inlet of the centrifugal fan 501 generates negative pressure suction, which forms a suction negative pressure at the top of the discharge pipe 1 through the connecting pipe 5027, the internal cavity of the sealed tank 5023, and the dust collection pipe 503. The dust-laden gas is drawn in from the top left and right sides of the top of the discharge pipe 1 through the two top ends of the dust collection pipe 503, flows downward along the dust collection pipe 503, and enters the interior of the dust collection bag 5026 through the fixing plate 5021. When the dust-laden gas passes through the dust collection bag 5026, the dust particles are trapped on the inner wall surface of the dust collection bag 5026. The filtered clean gas is discharged from the outside of the dust collection bag 5026, enters the internal cavity of the sealed tank 5023, and then enters the air inlet of the centrifugal fan 501 through the connecting pipe 5027.

[0030] The centrifugal fan 501 pressurizes the clean gas and sends it into the air supply pipe 504 through the air outlet. The clean gas flows downward along the air supply pipe 504 and is symmetrically blown into the interior of the material discharge pipe 1 from the left and right sides of the bottom of the material discharge pipe 1 from the two bottom ends of the air supply pipe 504.

[0031] The dust collection pipe 503 continuously draws air from the top of the material discharge pipe 1, and the air supply pipe 504 continuously supplies air from the bottom of the material discharge pipe 1, so that a directional airflow circulation is formed inside the material discharge pipe 1 from top to bottom. The dust-laden gas is carried upward by the airflow to the top inlet of the dust collection pipe 503, and is then drawn into the dust collection component 502 for filtration, thereby achieving source capture and efficient dust suppression of dust inside the material discharge pipe 1.

[0032] When it is necessary to clean the dust collected inside the dust collection bag 5026, rotate the threaded connecting ring 5025 in the opposite direction to separate the threaded connecting ring 5025 from the second threaded ring 5024. Then, the dust collection bag 5026 can be removed together with the threaded connecting ring 5025 for cleaning. After cleaning, tighten the threaded connecting ring 5025 back onto the outside of the second threaded ring 5024, and then tighten the sealing can 5023 onto the outside of the first threaded ring 5022 to restore its use.

[0033] Example 3 A clog-resistant and buffer-type coal conveyor belt unloading device for power plants operates according to the following steps: S1. First, start the servo motor 404 and centrifugal fan 501. The servo motor 404 drives the rotating shaft 401 to rotate the spiral blades 402 and the dispersing rod 403. At the same time, the buffer rod 409 and the buffer plate 410 are rotated through the transmission belt 408 and the transmission gear 411. S2. The centrifugal fan 501 drives the dust suppression mechanism 5 to operate, so that the dust collection pipe 503 generates a suction negative pressure at the top of the material drop pipe 1, and the air supply pipe 504 sends air to the inside at the bottom of the material drop pipe 1, forming a top-down directional airflow circulation inside the material drop pipe 1. S3. Coal material enters the discharge pipe 1 through the inlet 2 from the upper coal conveyor belt. First, it is mechanically dispersed by the dispersing rod 403, which breaks the lumps into fine particles. Then, the coal material continues to fall to the spiral blade 402. Under the rotational guidance of the spiral blade 402, it is conveyed downwards at a uniform speed along the discharge pipe 1 to prevent the coal material from accumulating and sticking on the pipe wall. After leaving the spiral blade 402, the coal material falls to the discharge port 3. After the speed is adjusted by the rotating buffer plate 410, it falls from the discharge port 3 to the downstream coal conveyor belt, completing the entire discharge process. S4. During the entire process of coal falling, the dust-laden gas generated inside the material falling pipe 1 forms an upward airflow under the combined action of suction from the top of the dust collection pipe 503 and air supply from the bottom of the air supply pipe 504. The dust-laden gas is guided to the top inlet of the dust collection pipe 503, enters the dust collection component 502 through the dust collection pipe 503, and is filtered by the dust collection bag 5026. The clean gas is then sent back to the inside of the material falling pipe 1 through the centrifugal fan 501 and the air supply pipe 504, realizing the recycling of gas. S5, servo motor 404 runs continuously, the forced conveying of spiral blade 402, the continuous dispersing of the dispersing rod 403 and the dynamic buffering of buffer plate 410 are carried out simultaneously; centrifugal fan 501 runs continuously, top suction and bottom air supply are carried out simultaneously, ensuring that the material discharge device always maintains an effective operating state of anti-blocking, buffering and dust suppression during continuous coal conveying operations.

[0034] In summary, the anti-blocking buffer type coal conveyor belt unloading device and dust suppression coal conveying process of the power plant uses a servo motor 404 to drive the rotating wheel 407 and the transmission belt 408, which in turn drive the spiral blades 402 and the dispersing rod 403 on the rotating shaft 401 to rotate, mechanically dispersing the lumpy coal material and forcibly guiding and conveying it, eliminating blockages without the need for manual cleaning during machine shutdown.

[0035] Furthermore, the anti-clogging buffer type power plant coal conveyor belt unloading device and dust suppression coal conveying process, through the centrifugal fan 501, causes the dust collection pipe 503 to draw in dust-laden gas at the top of the unloading pipe 1, and the air supply pipe 504 to send air inward from the bottom, forming a top-to-bottom directional airflow circulation inside the unloading pipe 1, which captures dust at the source in the middle and bottom sections, solving the problems of coal blockage and inability to effectively capture dust in the middle and bottom sections of the unloading pipe in existing unloading devices.

[0036] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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 invention.

[0037] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0041] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A clog-resistant and buffer-type coal conveyor belt unloading device for power plants, comprising a unloading pipe body, an anti-clogging and buffer mechanism, and a dust suppression mechanism, characterized in that: The top and bottom of the discharge pipe are respectively fixedly installed with a material inlet and a material outlet; The anti-blocking buffer mechanism includes a rotating shaft vertically rotatably connected to the inside of the discharge tube. Multiple threaded blades are circumferentially fixedly installed on the outer wall of the rotating shaft. A dispersing rotating rod is fixedly installed on the top of the rotating shaft. A servo motor, a drive plate, and a transmission box are fixedly installed on the outer wall of the discharge tube. Two rotating wheels are rotatably connected inside the drive plate. The two rotating wheels are connected by a transmission belt. A transmission gear is fixedly installed inside the transmission box. A buffer rotating rod is horizontally rotatably connected inside the discharge port. Multiple buffer plates are circumferentially fixedly installed on the outer wall of the buffer rotating rod.

2. The anti-clogging buffer type coal conveyor belt unloading device for power plants according to claim 1, characterized in that: The dust suppression mechanism includes a centrifugal fan, a dust collection assembly, a dust collection pipe, and an air supply pipe, all fixedly installed on the outer wall of the material discharge pipe. The dust collection pipe, dust collection assembly, centrifugal fan, and air supply pipe are connected sequentially from top to bottom.

3. The anti-clogging buffer type coal conveyor belt unloading device for power plants according to claim 1, characterized in that: The bottom of the rotating shaft is fixedly connected to one of the rotating wheels, and the output shaft of the servo motor is fixedly connected to the other rotating wheel.

4. The anti-clogging buffer type coal conveyor belt unloading device for power plants according to claim 1, characterized in that: The transmission gear includes a first gear and a second gear that mesh with each other. A connecting shaft is fixedly installed at the bottom of another rotating wheel, and the bottom of the connecting shaft is fixedly connected to the first gear. The right end of the buffer rotating rod passes through the feed port and is fixedly connected to the second gear.

5. A clog-resistant buffer type coal conveyor belt unloading device for power plants according to claim 2, characterized in that: Both the dust collection pipe and the air supply pipe have a Y-shaped structure. The top of the dust collection pipe extends from the top left and right sides of the material discharge pipe body to the inside of the material discharge pipe body, and the bottom of the air supply pipe extends from the bottom left and right sides of the material discharge pipe body to the inside of the material discharge pipe body.

6. The anti-clogging buffer type coal conveyor belt unloading device for power plants according to claim 2, characterized in that: The dust collection assembly includes a fixing plate fixedly installed on the outer left side of the discharge pipe body. A first threaded ring and a second threaded ring are fixedly installed on the bottom of the fixing plate. A sealing can is threadedly connected to the outer side of the first threaded ring, and a threaded connecting ring is threadedly connected to the outer side of the second threaded ring. A dust collection bag is fixedly installed at the bottom of the threaded connecting ring, and a connecting pipe is fixedly installed at the bottom of the sealing can.

7. A clog-resistant buffer type coal conveyor belt unloading device for power plants according to claim 6, characterized in that: The bottom of the dust collection pipe passes through the fixing plate and extends into the interior of the dust collection bag. The bottom of the connecting pipe is fixedly connected to the air inlet of the centrifugal fan, and the top of the air supply pipe is fixedly connected to the air outlet of the centrifugal fan.

8. A dust suppression coal conveying process for a clog-resistant buffer type coal conveyor belt unloading device in a power plant, based on the clog-resistant buffer type coal conveyor belt unloading device as described in any one of claims 1-7, characterized in that, Includes the following steps: S1: Start the servo motor, which drives the two rotating wheels to rotate synchronously through the transmission belt, drives the rotating shaft to rotate the spiral blades and the dispersing rod, and at the same time drives the buffer rod and the buffer plate on the outside to rotate through the transmission gear; S2: Start the centrifugal fan to draw dust-laden gas from the top of the discharge pipe through the dust collection pipe, and send the dust-laden gas into the dust collection assembly for filtration; S3: The clean gas filtered by the dust collection component is sent into the air supply pipe through the outlet of the centrifugal fan, and blown into the bottom of the material drop pipe through the bottom end of the air supply pipe, forming a top-to-bottom airflow circulation inside the material drop pipe.

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