A coal conveyor for thermal power plants

Abstract

This utility model discloses a coal conveyor for thermal power plants, including a conveyor with an arched shell on its upper side, and a dust removal mechanism. The dust removal mechanism includes a dust collection shell, a top cover, a dust removal component, a filter plate, and a filter stirring auxiliary component. The dust collection shell is located at the upper right end of the arched shell, and a top cover is provided on the upper side of the dust collection shell. A dust removal component is provided between the dust collection shell, the top cover, the arched shell, and the conveyor. A filter plate is provided at the upper end of the interior of the dust collection shell, and a filter stirring auxiliary component is provided between the dust collection shell, the top cover, and the filter plate. This coal conveyor for thermal power plants uses negative pressure adsorption to separate coal dust treatment from coal conveying, and separately humidifies and recycles the collected coal dust, thereby avoiding equipment adhesion and blockage caused by directly spraying water to reduce coal dust during coal conveying.

Description

Technical Field

[0001] This utility model relates to the field of coal conveying technology, specifically a coal conveyor for thermal power plants. Background Technology

[0002] A thermal power plant is a factory that uses combustible materials (such as coal, natural gas, or oil) as fuel to generate heat energy through combustion, and then converts the heat energy into electrical energy. In thermal power plants, conveyors are typically used to transport coal fuel. In the prior art, patent CN 221115745 U discloses a coal conveyor with dust suppression function, including a base and a flange joint. Two support rods are hinged to the left end of the base, and vertical rods arranged at equal intervals are fixed to the upper surface of each support rod. A horizontal rod is fixed between every two vertical rods, and a roller is rotatably connected to the top of each vertical rod. This invention, by incorporating a flange joint, support rods, vertical rods, horizontal rods, a nozzle, and a conveyor belt, transports coal via the conveyor belt during use. Simultaneously, a duct is connected to the flange joint, allowing the flange joint to be connected to a water source, with water entering through the flange joint. Water is sprayed into the interior of the vertical bars, then into the interior of each horizontal and vertical bar, and finally sprayed out from the nozzle to spray water mist onto the coal on the conveyor belt, thereby reducing the spread of coal dust into the air. This effectively reduces dust at the work site and improves the working environment. During the coal conveying process, the device directly sprays water onto the conveying unit to prevent coal dust from spreading around the equipment. However, spraying water will make the coal inside the conveying unit more moist, increasing the stickiness between the coal and the conveying unit, which may lead to adhesion and blockage between the coal and the conveying unit. Therefore, we propose a coal conveyor for thermal power plants. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a coal conveyor for thermal power plants. This device uses negative pressure adsorption to separate coal dust treatment from coal conveying, and separately humidifies and recycles the collected coal dust, thereby avoiding the equipment adhesion and blockage caused by directly spraying water to reduce coal dust during coal conveying. This can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a coal conveyor for a thermal power plant, comprising a conveyor, an arched shell on the upper side of the conveyor, and a dust removal mechanism;

[0005] Dust removal mechanism: It includes a dust collection shell, a top cover, a dust removal component, a filter plate, and a filter stirring auxiliary component. The dust collection shell is located on the upper right side of the arched shell. The top cover is provided on the upper side of the dust collection shell. The dust removal component is provided between the dust collection shell, the top cover, the arched shell, and the conveyor. The filter plate is provided at the upper inside of the dust collection shell. The filter stirring auxiliary component is provided between the dust collection shell, the top cover, and the filter plate. This device uses negative pressure adsorption to separate coal dust treatment from coal transportation, and performs separate humidification, recycling, and reuse treatment on the collected coal dust, thereby avoiding equipment adhesion and blockage caused by directly spraying water to reduce coal dust during coal transportation.

[0006] Furthermore, it also includes a microcontroller, which is located outside the conveyor. The input terminal of the microcontroller is electrically connected to an external power source, and the output terminal of the microcontroller is electrically connected to the input terminal of the conveyor, which facilitates the control of electrical components within the device.

[0007] Furthermore, the dust removal assembly includes a dust collection shell, a first pipe, a branch pipe, a Roots blower, and a second pipe. The Roots blower is located on the upper side of the arched shell, and its input end is electrically connected to the output end of the microcontroller. Dust collection shells are installed at both ends of the arched shell and the right end of the conveyor via supports. The dust collection shell on the left side is connected to the dust collection shell via the first pipe, and the two dust collection shells on the right side are connected to the dust collection shell via the branch pipe. The top wall of the top cover is provided with a second pipe, and the left end of the second pipe is connected to the exhaust port of the Roots blower. The collection of coal dust in the coal conveyor of the thermal power plant is achieved by using negative pressure.

[0008] Furthermore, the filter stirring auxiliary component includes a rotating shaft, a spiral stirring blade, and a low-speed motor. The rotating shaft is rotatably connected to the middle of the top cover via a bearing. A spiral stirring blade is provided on the lower side of the rotating shaft and is installed in conjunction with the dust collection shell. A low-speed motor is provided on the upper side of the top cover. The input end of the low-speed motor is electrically connected to the output end of the microcontroller. The output shaft of the low-speed motor is fixedly connected to the upper end of the rotating shaft. The rotating shaft is rotatably connected to the middle of the filter plate via a sealed bearing, thereby humidifying and stirring the coal dust collected in the coal conveyor of the thermal power plant.

[0009] Furthermore, the filter stirring auxiliary component also includes a strip brush, a strip seat, and a guide slope. The strip brush is located at the upper end of the rotating shaft, and the inner wall of the dust collection shell is provided with a ring of evenly distributed strip seats. The upper side of each strip seat is in contact with the lower side of the filter plate, and a guide slope is provided at the bottom edge of each strip seat to reduce the filter pore blockage rate in the coal conveyor of the thermal power plant.

[0010] Furthermore, the dust removal mechanism also includes a discharge pipe, a solenoid valve, and a screw conveyor. The discharge pipe is installed through the conical bottom wall of the dust collection shell. A solenoid valve is connected in series in the middle of the discharge pipe, and a screw conveyor is installed at the lower end of the discharge pipe. The input ends of the solenoid valve and the screw conveyor are electrically connected to the output end of the microcontroller, so that the humidified coal dust in the dust collection part of the coal conveyor in the thermal power plant is conveyed to the coal conveying part.

[0011] Furthermore, the dust removal mechanism also includes a liquid inlet pipe, which is installed through the upper end of the inner wall of the dust collection shell to transport water to the dust collection part inside the coal conveyor of the thermal power plant.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This coal conveyor for thermal power plants has the following advantages:

[0013] When using a coal conveyor in a thermal power plant, the device uses negative pressure adsorption to adsorb and collect coal dust generated during coal transportation. The collected coal dust is then humidified with agitation and water to prevent further dust generation. The humidified coal dust is then transported to the coal conveying section of the coal conveyor for combustion and reuse in thermal power generation. The device uses negative pressure adsorption to separate coal dust treatment from coal transportation, and separately humidifies and recycles the collected coal dust, thus avoiding equipment clogging caused by directly spraying water to suppress dust during coal transportation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the dust collection shell of this utility model;

[0016] Figure 3 This is a bottom view of the internal structure of the dust collection shell of this utility model;

[0017] Figure 4 This is a schematic diagram of the spiral stirring blade structure of this utility model;

[0018] Figure 5 This is an enlarged structural diagram of point A in this utility model.

[0019] In the diagram: 1 Conveyor, 2 Microcontroller, 3 Arched Shell, 4 Dust Removal Mechanism, 41 Dust Collection Shell, 42 Top Cover, 43 Dust Removal Components, 431 Dust Suction Shell, 432 Pipeline 1, 433 Branch Pipe, 434 Roots Blower, 435 Pipeline 2, 44 Filter Plate, 45 Filter Agitation Auxiliary Components, 451 Rotary Shaft, 452 Spiral Agitator, 453 Strip Brush, 454 Strip Seat, 455 Guide Inclined Surface, 456 Low-Speed ​​Motor, 46 Inlet Pipe, 47 Outlet Pipe, 48 Solenoid Valve, 49 Screw Conveyor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 This embodiment provides a technical solution: a coal conveyor for a thermal power plant, including a conveyor 1, an arched shell 3 on the upper side of the conveyor 1, and a microcontroller 2 located outside the conveyor 1. The input end of the microcontroller 2 is electrically connected to an external power source, and the output end of the microcontroller 2 is electrically connected to the input end of the conveyor 1. The microcontroller 2 starts the conveyor 1, and the conveyor 1 operates by using the contact friction between the internal belt and the coal to transport the coal from left to right for thermal power generation. It also includes a dust removal mechanism 4.

[0022] Dust removal mechanism 4: It includes a dust collection shell 41, a top cover 42, a dust removal component 43, a filter plate 44, and a filter stirring auxiliary component 45. The dust collection shell 41 is located on the upper right side of the arched shell 3. The top cover 42 is located on the upper side of the dust collection shell 41. The dust removal component 43 is located between the dust collection shell 41, the top cover 42, the arched shell 3, and the conveyor 1. The filter plate 44 is located at the upper part of the interior of the dust collection shell 41. The filter stirring auxiliary component 45 is located between the dust collection shell 41, the top cover 42, and the filter plate 44. The dust removal component 43 includes a suction shell 431, a first pipe 432, a branch pipe 433, a Roots blower 434, and a second pipe 435. The Roots blower 434 is located on the upper side of the arched shell 3. The input end of the Roots blower 434 is electrically connected to the output end of the single-chip microcomputer 2. Dust collection housings 431 are mounted on the left and right ends of the 3 and the right end of the conveyor 1 via brackets. The dust collection housing 431 on the left is connected to the dust collection housing 41 via pipe 1 432. The two dust collection housings 431 on the right are connected to the dust collection housing 41 via branch pipes 433. Pipe 2 435 is installed through the top wall of the top cover 42. The left end of pipe 2 435 is connected to the air intake of the Roots blower 434. The filter stirring auxiliary component 45 includes a rotating shaft 451, a spiral stirring blade 452, and a low-speed motor 456. The rotating shaft 451 is rotatably connected to the middle of the top cover 42 via bearing 1. The spiral stirring blade 452 is located on the lower side of the rotating shaft 451 and is installed in conjunction with the dust collection housing 41. The low-speed motor 456 is located on the upper side of the top cover 42. The input of the low-speed motor 456 is... The output end of the low-speed motor 456 is electrically connected to the output end of the microcontroller 2. The output shaft of the low-speed motor 456 is fixedly connected to the upper end of the rotating shaft 451. The rotating shaft 451 is rotatably connected to the middle part of the filter plate 44 through a sealed bearing. The filter stirring auxiliary component 45 also includes a strip brush 453, a strip seat 454, and a guide slope 455. The strip brush 453 is set at the upper end of the rotating shaft 451. The inner wall of the dust collection shell 41 is provided with a ring of evenly distributed strip seats 454. The upper side of each strip seat 454 contacts the lower side of the filter plate 44. The bottom edge of each strip seat 454 is provided with a guide slope 455. The dust removal mechanism 4 also includes a discharge pipe 47, a solenoid valve 48, and a screw conveyor 49. The discharge pipe 47 is installed through the conical bottom wall of the dust collection shell 41. The middle part of the discharge pipe 47 A solenoid valve 48 is connected in series. A screw conveyor 49 is installed at the lower end of the discharge pipe 47. The input ends of both the solenoid valve 48 and the screw conveyor 49 are electrically connected to the output end of the single-chip microcomputer 2. The dust removal mechanism 4 also includes a liquid inlet pipe 46, which is installed through the upper end of the inner wall of the dust collection shell 41. The liquid inlet pipe 46 is connected to an external water supply pipe, and is kept closed by a control valve on the external water supply pipe. When the device is used to transport coal from a thermal power plant, the control valve on the external water supply pipe is first opened, and a certain amount of water is supplied to the dust collection shell 41 through the liquid inlet pipe 46. Then the control valve on the external water supply pipe is closed again. During the coal transportation process of the thermal power plant, the upper end of the conveyor 1 is wrapped by the arched shell 3.This prevents coal dust from spreading around the equipment during coal transportation in thermal power plants. Simultaneously, the microcontroller 2 starts the Roots blower 434. The Roots blower 434 operates, and through the relative motion of two internal lobe rotors within the cylinder, gas compression and transportation are achieved using volume changes. The exhaust port of the Roots blower 434, through pipe two 435, draws air from the inside of the dust collection shell 41, creating a negative pressure state inside the dust collection shell 41. This negative pressure then causes the left-side suction shell 431 to adsorb dust from the exposed area at the left end between the arched shell 3 and the conveyor 1. This adsorbed dust enters the dust collection shell 41 through pipe one 432. The two right-side suction shells 431 then adsorb dust from the exposed area at the right end between the arched shell 3 and the conveyor 1. Dust is absorbed, and the adsorbed dust enters the dust collection shell 41 through the branch pipe 433. The coal dust and airflow entering the dust collection shell 41 are filtered by the filter plate 44. The coal dust remains in the dust collection shell 41, while the airflow passes through the filter plate 44 and is discharged through the pipe 435 and the Roots blower 434. The coal dust entering the dust collection shell 41 falls into the water body at the conical bottom of the dust collection shell 41 under its own gravity. At the same time, the microcontroller 2 starts the low-speed motor 456, causing its output shaft to drive the rotating shaft 451 to rotate in the opposite direction at a low speed. During the reverse low-speed rotation of the rotating shaft 451, the spiral stirring plate 452 rotates synchronously. During the reverse rotation of the spiral stirring plate 452, the outer edge of the spiral stirring plate 452 rotates along the conical bottom wall of the dust collection shell 41, from The coal dust at the bottom of the dust collection shell 41 is mixed with water and stirred upwards. Simultaneously, the rotating shaft 451 drives the strip brush 453 to rotate in the opposite direction. During this rotation, the strip brush 453 cleans the coal dust adhering to the lower surface of the filter plate 44. When the strip brush 453, carrying the coal dust adhering to the lower surface of the filter plate 44, moves to contact the strip seat 454, it moves along the guide slope 455 of the strip seat 454, thus separating the coal dust from the lower surface of the filter plate 44. When the inclined plane 455 separates from the strip seat 454, the coal dust moves downwards under the inertia of its own inclined plane, thus separating from the lower surface of the filter plate 44. By cleaning the coal dust adhering to the lower surface of the filter plate 44, the filter holes of the filter plate 44 are prevented from being blocked, thus avoiding the impact on coal dust collection. Through the timing element in the microcontroller 2, after the coal dust has been collected in the dust collection shell 41 for a certain period of time, the microcontroller 2 shuts off the Roots blower 434 and opens the solenoid valve 48. At the same time, the microcontroller 2 controls the low-speed motor 456 to make its output shaft drive the rotating shaft 451 to rotate in the forward direction. During the forward rotation of the rotating shaft 451 and the spiral stirring plate 452, the contact pressure between the spiral surface of the spiral stirring plate 452 and the wet coal dust at the bottom of the dust collection shell 41 is utilized.This process conveys the moistened coal dust at the bottom of the dust collection shell 41 into the discharge pipe 47. Simultaneously, the microcontroller 2 starts the screw conveyor 49. The moistened coal dust in the discharge pipe 47 enters through the feed pipe of the screw conveyor 49. The screw conveyor 49 operates by generating axial thrust through the rotation of the screw blades, pushing the moistened coal dust along the conveying direction to the right end of the conveyor 1 where coal is discharged. After a period of use, the filter plate 44 can be repaired or replaced by removing the top cover 42. This device utilizes negative pressure adsorption to separate coal dust treatment from coal conveying, and separately humidifies and recycles the collected coal dust, thus avoiding equipment adhesion and blockage caused by directly spraying water to reduce dust during coal conveying.

[0023] The working principle of the coal conveyor for thermal power plants provided by this utility model is as follows: The inlet pipe 46 is connected to an external water supply pipe, and the control valve on the external water supply pipe is kept closed. When the device is used to convey coal for the thermal power plant, firstly, the control valve on the external water supply pipe is opened, and a certain amount of water is supplied to the dust collection shell 41 through the inlet pipe 46. Then, the control valve on the external water supply pipe is closed again. Subsequently, the microcontroller 2 starts the conveyor 1. The conveyor 1 operates by utilizing the contact friction between the internal belt and the coal, thereby conveying the coal from left to right for thermal power generation. The upper end of the conveyor 1 is wrapped by the arched shell 3, thereby preventing coal from being contaminated during the coal conveying process in the thermal power plant. Dust spreads around the equipment, and simultaneously, the microcontroller 2 starts the Roots blower 434. The Roots blower 434 operates, using two internal lobe-shaped rotors moving relative to each other within the cylinder to compress and transport gas through volume changes. The exhaust port of the Roots blower 434 draws air from the inside of the dust collection shell 41 through pipe 2 435, creating a negative pressure inside the dust collection shell 41. This negative pressure then causes the left-side suction shell 431 to adsorb dust from the exposed area at the left end between the arched shell 3 and the conveyor 1. This adsorbed dust enters the dust collection shell 41 through pipe 1 432. The two right-side suction shells 431 absorb dust from the exposed area at the right end between the arched shell 3 and the conveyor 1. This adsorbed dust passes through the branch pipe 4... 33 enters the dust collection shell 41. The coal dust and airflow entering the dust collection shell 41 are filtered by the filter plate 44. The coal dust remains inside the dust collection shell 41, while the airflow passes through the filter plate 44 and is discharged through the pipe 435 and the Roots blower 434. The coal dust entering the dust collection shell 41 falls into the water at the conical bottom of the dust collection shell 41 under its own gravity. At the same time, the microcontroller 2 starts the low-speed motor 456, causing its output shaft to drive the rotating shaft 451 to rotate in the opposite direction at a low speed. During the reverse low-speed rotation of the rotating shaft 451, it drives the spiral stirring plate 452 to rotate synchronously. During the reverse rotation of the spiral stirring plate 452, the outer edge of the spiral stirring plate 452 rotates along the conical bottom wall of the dust collection shell 41, thereby filtering the coal dust and water at the bottom of the dust collection shell 41. The mixture is stirred upwards, while the rotating shaft 451 drives the strip brush 453 to rotate in the opposite direction. During the reverse rotation of the strip brush 453, the coal dust adhering to the lower surface of the filter plate 44 is cleaned. When the strip brush 453, carrying the coal dust adhering to the lower surface of the filter plate 44, moves to contact the strip seat 454, the strip brush 453, carrying the coal dust adhering to the lower surface of the filter plate 44, moves along the guide slope 455 of the strip seat 454, thereby separating the coal dust adhering to the lower surface of the filter plate 44 from the lower surface of the filter plate 44. When the strip brush 453, carrying the coal dust adhering to the lower surface of the filter plate 44, separates from the strip seat 454 along the guide slope 455 of the strip seat 454...The coal dust particles move downwards due to the inertia of their inclined plane, thus separating from the lower surface of the filter plate 44. By cleaning the coal dust adhering to the lower surface of the filter plate 44, the filter holes of the filter plate 44 are prevented from becoming clogged, thus avoiding any impact on coal dust collection. Using a timing element within the microcontroller 2, after a certain period of coal dust collection in the dust collection housing 41, the microcontroller 2 shuts off the Roots blower 434 and opens the solenoid valve 48. Simultaneously, the microcontroller 2 controls the low-speed motor 456 to drive the rotating shaft 451 to rotate forward. During the forward rotation of the spiral agitator 452 driven by the rotating shaft 451, the spiral surface of the spiral agitator 452 interacts with the dust collection... The contact pressure between the wet coal dust particles at the bottom of the dust collection shell 41 is used to convey the wet coal dust particles into the discharge pipe 47. Simultaneously, the microcontroller 2 starts the screw conveyor 49. The wet coal dust particles in the discharge pipe 47 enter through the feed pipe of the screw conveyor 49. The screw conveyor 49 operates by generating axial thrust through the rotation of the screw blades, pushing the wet coal dust particles along the conveying direction to the coal feeding position at the right end of the conveyor 1. After a period of use, the filter plate 44 can be repaired or replaced by removing the top cover 42.

[0024] It is worth noting that the conveyor 1 disclosed in the above embodiments can be a DTL series belt conveyor, the microcontroller 2 can be an STM32, the Roots blower 434 can be a DSR-G high-pressure Roots blower, the low-speed motor 456 can be a D140TYD, the solenoid valve 48 can be a ZQDF-3Y-40, and the screw conveyor 49 can be a GX200 type screw feeder. The microcontroller 2 controls the operation of the conveyor 1, the Roots blower 434, the low-speed motor 456, the solenoid valve 48, and the screw conveyor 49 using methods commonly used in the prior art.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A coal conveyor for a thermal power plant, comprising a conveyor (1), wherein an arched shell (3) is provided on the upper side of the conveyor (1), characterized in that: It also includes a dust removal mechanism (4); Dust removal mechanism (4): It includes a dust collection shell (41), a top cover (42), a dust removal component (43), a filter plate (44), and a filter stirring auxiliary component (45). The dust collection shell (41) is located on the upper right side of the arched shell (3). The top cover (42) is provided on the upper side of the dust collection shell (41). The dust removal component (43) is provided between the dust collection shell (41), the top cover (42), the arched shell (3), and the conveyor (1). The filter plate (44) is provided at the upper inside of the dust collection shell (41). The filter stirring auxiliary component (45) is provided between the dust collection shell (41), the top cover (42), and the filter plate (44).

2. A coal conveyor for a thermal power plant according to claim 1, characterized in that: It also includes a microcontroller (2), which is located outside the conveyor (1). The input terminal of the microcontroller (2) is electrically connected to an external power supply, and the output terminal of the microcontroller (2) is electrically connected to the input terminal of the conveyor (1).

3. A coal conveyor for a thermal power plant according to claim 2, characterized in that: The dust removal assembly (43) includes a dust collection shell (431), a first pipe (432), a branch pipe (433), a Roots blower (434), and a second pipe (435). The Roots blower (434) is located on the upper side of the arched shell (3). The input end of the Roots blower (434) is electrically connected to the output end of the microcontroller (2). The left and right ends of the arched shell (3) and the right end of the conveyor (1) are all equipped with dust collection shells (431) through brackets. The dust collection shell (431) on the left side is connected to the dust collection shell (41) through the first pipe (432). The two dust collection shells (431) on the right side are connected to the dust collection shell (41) through the branch pipe (433). The top wall of the top cover (42) is provided with a second pipe (435). The left end of the second pipe (435) is connected to the air intake of the Roots blower (434).

4. A coal conveyor for a thermal power plant according to claim 2, characterized in that: The filter stirring auxiliary component (45) includes a rotating shaft (451), a spiral stirring blade (452), and a low-speed motor (456). The rotating shaft (451) is rotatably connected to the middle of the top cover (42) through a bearing. The spiral stirring blade (452) is provided on the lower side of the rotating shaft (451). The spiral stirring blade (452) is installed in conjunction with the dust collection shell (41). The low-speed motor (456) is provided on the upper side of the top cover (42). The input end of the low-speed motor (456) is electrically connected to the output end of the microcontroller (2). The output shaft of the low-speed motor (456) is fixedly connected to the upper end of the rotating shaft (451). The rotating shaft (451) is rotatably connected to the middle of the filter plate (44) through a sealed bearing.

5. A coal conveyor for a thermal power plant according to claim 4, characterized in that: The filter stirring auxiliary component (45) also includes a strip brush (453), a strip seat (454), and a guide slope (455). The strip brush (453) is located at the upper end of the rotating shaft (451). The inner wall of the dust collection shell (41) is provided with a ring of evenly distributed strip seats (454). The upper side of each strip seat (454) is in contact with the lower side of the filter plate (44). A guide slope (455) is provided at the bottom edge of each strip seat (454).

6. A coal conveyor for a thermal power plant according to claim 2, characterized in that: The dust removal mechanism (4) also includes a discharge pipe (47), a solenoid valve (48) and a screw conveyor (49). The discharge pipe (47) is installed through the conical bottom wall of the dust collection shell (41). The solenoid valve (48) is connected in series in the middle of the discharge pipe (47). The screw conveyor (49) is provided at the lower end of the discharge pipe (47). The input ends of the solenoid valve (48) and the screw conveyor (49) are electrically connected to the output end of the microcontroller (2).

7. A coal conveyor for a thermal power plant according to claim 1, characterized in that: The dust removal mechanism (4) also includes a liquid inlet pipe (46), which is installed through the upper end of the inner wall of the dust collection shell (41).

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