Anti-blocking fire coal conveying device for thermal power plant

Abstract

The invention discloses an anti-blocking fire coal conveying device for a thermal power plant, which comprises an anti-blocking part for filtering crushed fire coal while preventing material blockage in the fire coal conveying process; the buffering component is used for buffering the fire coal conveying process; after fire coal is crushed, the anti-blocking component filters the crushed fire coal and prevents the condition of blocking in the filtering process, the buffering component buffers the crushed fire coal and prevents elements receiving the crushed fire coal from being damaged, the adjusting rod is driven by the motor to drive the limiting frame to horizontally slide in a reciprocating mode, and therefore the fire coal crushing device has the advantages that the adjusting rod is driven by the motor to drive the limiting frame to horizontally slide in a reciprocating mode; the connecting rod drives the filter screen to move and strikes the spring impact balls on the fixing columns on the two sides, anti-blocking filtering is achieved, it is guaranteed that fire coal is conveyed smoothly, and manual maintenance is reduced. Meanwhile, the bottom plate transmits force to the supporting columns, compresses the second springs and extrudes the elastic rubber, secondary buffering is carried out, impact force is effectively absorbed, all parts of the device are protected, the failure rate is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of coal conveying devices, and in particular to a coal conveying device for a thermal power plant that prevents blockage. Background Art

[0002] A thermal power plant is a factory that uses the heat energy generated by burning fossil fuels such as coal, oil, and natural gas to generate electricity. Through a series of complex equipment and technological processes, it converts the chemical energy of the fuel into electrical energy to meet the social demand for electricity. Thermal power plants play an important role in power supply and are one of the main ways of traditional energy power generation.

[0003] A coal conveying device for a thermal power plant that prevents blockage is a device used in a thermal power plant that can prevent coal from being blocked during the conveying process and ensure the smooth conveying of coal to the boiler. It uses a cleaning component to dry the coal to avoid the wet pulverized coal sticking to the conveying components. At the same time, the adhered pulverized coal is shaken off through vibration, and the coal is pressed down and broken by means of a dredging component to reduce the occurrence of material blockage at the discharge port. Some devices also prevent the raw materials from blocking the equipment through some special designs, such as adjustable crushing rollers, cleaning wheels, buffer plates, etc.

[0004] In the prior art, for some coal conveying devices used in thermal power plants, due to the wide variety of coal sources used in thermal power plants, the coal quality is uneven. Some coal has a high humidity, and during the conveying process, the wet pulverized coal is extremely easy to stick to the inner walls of the conveying pipelines and equipment. Over time, the adhered pulverized coal gradually accumulates. Once the conveying device is blocked, it will reduce the power generation efficiency of the thermal power plant, resulting in unstable power supply, and a large amount of manpower and material resources are also required for dredging and cleaning. Therefore, a coal conveying device for a thermal power plant that prevents blockage is proposed to solve the above problems. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention lies in: improving the problem of unstable power supply in the prior art.

[0006] The above technical problem is solved by the following technical solutions: The present invention provides a coal conveying device for a thermal power plant that prevents blockage, which includes an anti-blocking component that prevents material blockage during the coal conveying process and filters the crushed coal;

[0007] A buffer component for buffering the coal conveying process;

[0008] A box body, wherein the anti-blocking component is installed in the box body, and the buffer component is installed outside the box body;

[0009] After the coal is crushed, the anti-blocking component filters the crushed coal and prevents blockage during the filtering process. The buffering component buffers the crushed coal to avoid damaging the components that receive the crushed coal.

[0010] In a preferred embodiment of the coal conveying device for a power plant with anti-blocking according to the present invention: The anti-blocking component includes: a filter screen for filtering the crushed coal; a U-shaped frame provided in a pair of symmetry for limiting the filter screen; the filter screen is fixedly connected to the inner wall of the box body, and the filter screen is located between the U-shaped frames.

[0011] In a preferred embodiment of the coal conveying device for a power plant with anti-blocking according to the present invention: The anti-blocking component includes: a fixing column fixedly connected to one side of the U-shaped frame, a first chute and a second chute are provided on the box body, the fixing column passes through the first chute and the second chute and extends out of the box body; a first spring fixedly connected to the fixing column; an impact ball fixedly connected to one side of the first spring.

[0012] In a preferred embodiment of the coal conveying device for a power plant with anti-blocking according to the present invention: The anti-blocking component further includes: a connecting rod fixedly connected to one side of the filter screen; a limiting frame for limiting the adjusting rod; an adjusting rod for driving the limiting frame to move, in a zigzag shape, and the adjusting rod slides within the limiting frame.

[0013] In a preferred embodiment of the coal conveying device for a power plant with anti-blocking according to the present invention: The anti-blocking component further includes: an anti-blocking motor for driving the adjusting rod to rotate, and the motor shaft of the anti-blocking motor is fixedly connected to one end of the adjusting rod.

[0014] In a preferred embodiment of the coal conveying device for a power plant with anti-blocking according to the present invention: The buffering component includes: a bottom plate for supporting the box body, located at the bottom of the box body; support columns for supporting the bottom plate, located on one side of the bottom plate, and a plurality of support columns are provided; sliders located on the left and right sides of the support columns.

[0015] In a preferred embodiment of the coal conveying device for a power plant with anti-blocking according to the present invention: The buffering component includes: a second spring for buffering the bottom plate, located at the bottom of the slider; an elastic rubber for buffering the bottom plate, and the elastic rubber is fixedly connected to the support column through a sleeve column.

[0016] In a preferred embodiment of the coal conveying device for a power plant with anti-blocking according to the present invention: a dust reduction component for reducing dust spillage; a crushing component for crushing coal.

[0017] In a preferred embodiment of the coal conveying device for thermal power plants with anti-blocking according to the present invention: The dust-removing component includes: a support plate, one side of the support plate is fixedly connected with the support column; a water tank for storing water; a sprinkler for spraying water; the water tank is fixedly connected to the top of the support plate, the right side of the water tank is fixedly connected with a conveying pipe, and the top of the conveying pipe is fixedly connected with the sprinkler.

[0018] In a preferred embodiment of the coal conveying device for thermal power plants with anti-blocking according to the present invention: The crushing component includes: a crushing roller for crushing coal, there are two crushing rollers, which are installed inside the box body; a crushing motor for driving the crushing roller, and the crushing motor is fixedly connected to the outside of the box body through a support rod.

[0019] The beneficial effects of the present invention are as follows: By starting the motor to drive the rotating rod to rotate, and then the rotating rod drives the connecting rod to do circular motion, and then drives the adjusting rod to act synchronously, and then the adjusting rod drives the limiting frame to slide reciprocally in the horizontal direction. The limiting frame drives the filter screen to move reciprocally through the connecting rod. During the movement of the filter screen, it continuously impacts the impact balls connected to the fixed columns on both sides. Under the action of the first spring, the impact balls continuously rebound and impact the filter screen, thereby realizing a mechanical structure driven by the motor, making the filter screen move reciprocally and interact with the impact balls, efficiently realizing the anti-blocking filtration of the crushed coal, ensuring smooth conveying, avoiding the influence of coal accumulation on the conveying efficiency, and reducing the frequency of manual cleaning and maintenance.

[0020] The force is transmitted to the support columns below through the bottom plate. The support columns drive the sliders on both sides to slide downward under the action of this force, compressing the spring two at the bottom. The spring two absorbs part of the impact force through its own elasticity. At the same time, the support columns continue to move downward, squeezing the elastic rubber in the sleeve column. The elastic rubber exerts its elastic characteristics for secondary buffering and absorbs most of the remaining impact force, thereby realizing the ability to effectively cope with the impact force generated during the operation of the device, ensuring the stable operation of each component, reducing the probability of equipment failure, greatly reducing the damage of the impact force to the device, and significantly extending the service life of the device. Brief Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present invention and do not limit the present invention. Among them:

[0022] Figure 1 Shows the overall schematic diagram of the coal conveying device for thermal power plants with anti-blocking;

[0023] Figure 2 Shows the cross-sectional view of the coal conveying device for thermal power plants with anti-blocking;

[0024] Figure 3 Shows an enlarged view of location A of the coal conveying device for thermal power plants with anti-blocking function;

[0025] Figure 4 Shows an enlarged view of location B of the coal conveying device for thermal power plants with anti-blocking function;

[0026] Figure 5 Shows a schematic cross-sectional view of the buffer component and dust reduction component of the coal conveying device for thermal power plants with anti-blocking function.

[0027] Figure 6 Shows an enlarged view of location C of the coal conveying device for thermal power plants with anti-blocking function.

[0028] Figure 7 Shows a schematic diagram of the long rod structure of the coal conveying device for thermal power plants with anti-blocking function.

[0029] In the figure:

[0030] 1. Anti-blocking component; 2. Buffer component; 3. Box body; 5. Dust reduction component; 6. Crushing component; 21. Bottom plate; 12. U-shaped frame; 13. Fixed column; 14. First spring; 15. Impact ball; 11. Filter screen; 16. Connecting rod; 17. Limit frame; 18. Adjusting rod; 19. Anti-blocking motor; 22. Support column; 23. Slide block; 21. Bottom plate; 24. Second spring; 25. Sleeve column; 26. Elastic rubber; 51. Support plate; 52. Water tank; 53. Delivery pipe; 54. Sprayer; 61. Crushing roller; 62. Crushing motor. Detailed implementation manners

[0031] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with the detailed implementation manners and the accompanying drawings.

[0032] The terms used in the present invention are those general terms that are currently widely used in the art in consideration of the functions of the present invention. However, these terms may change according to the intentions of those of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but based on the meanings of the terms and the overall description of the present invention.

[0033] Refer to Figures 1 to 4, this embodiment provides a coal conveying device for thermal power plants with anti-blocking function, including an anti-blocking component 1, which prevents material blockage during coal conveying and filters the crushed coal; a buffer component 2, which is used to buffer the coal conveying process; a box body 3, the anti-blocking component 1 is installed in the box body 3, and the buffer component 2 is installed outside the box body 3; after the coal is crushed, the anti-blocking component 1 filters the crushed coal and prevents blockage during the filtering process, and the buffer component 2 buffers the crushed coal to avoid damage to the components that receive the crushed coal.

[0034] Among them, the anti-blocking component 1 is installed in the box body 3, mainly used to prevent material blockage during coal conveying and filter the crushed coal.

[0035] The buffer component 2 is installed outside the box body 3, aiming to buffer the impact during coal conveying, protect the components that receive the crushed coal from damage, set up a double-buffer mechanism to further absorb the remaining impact force, thus significantly reducing the damage of the impact force to each component of the device and extending the service life of the equipment.

[0036] In short, this anti-blocking coal conveying device for thermal power plants realizes efficient filtering and anti-blocking functions through its unique design. At the same time, through an effective buffer mechanism, it reduces the damage of the impact generated during operation to the device, improves the stability and durability of the overall equipment. This design not only improves the coal conveying efficiency but also reduces the maintenance cost and the need for manual intervention.

[0037] Refer to Figures 1 to 4 , this embodiment provides a coal conveying device for thermal power plants with anti-blocking function, including a filter screen 11, which filters the crushed coal; a U-shaped frame 12, which is provided with a pair of symmetric ones for limiting the filter screen 11; the filter screen 11 is fixedly connected to the inner wall of the box body 3, the filter screen 11 is located between the U-shaped frames 12, a fixing column 13, which is fixedly connected to one side of the U-shaped frame 12, the box body 3 is provided with a first sliding groove and a second sliding groove, and the fixing column 13 passes through the first sliding groove and the second sliding groove and extends outside the box body 3; a first spring 14, which is fixedly connected to the fixing column 13; an impact ball 15, which is fixedly connected to one side of the first spring 14. A connecting rod 16, there are two connecting rods 16, which are respectively fixedly connected to both sides of one end of the filter screen 11; a limiting frame 17, which is used to limit the adjusting rod 18; an adjusting rod 18, which is used to drive the limiting frame 17 to move, is in a Z shape, and the adjusting rod 18 slides in the limiting frame 17.

[0038] Among them, the filter screen 11 ensures that only particles meeting the size requirements can pass through, preventing oversized particles from clogging subsequent equipment. A set of U-shaped frames 12 are provided and are respectively fixedly connected to the inner walls on both sides of the box body 3, mainly used to provide limit and guiding functions for the filter screen 11 to ensure that the filter screen 11 can reciprocate smoothly within a specified range.

[0039] The filter screen 11 is fixedly connected between the two U-shaped frames 12, enabling the filter screen 11 to slide smoothly within the track provided by the U-shaped frames 12. On one side of each U-shaped frame 12, a plurality of fixed columns 13 are fixedly connected. These fixed columns 13 not only provide fixation and support for the first spring 14 but also provide limit and guiding functions for the impact balls 15.

[0040] There are two connecting rods 16, which are respectively fixedly connected to both sides of one end of the filter screen 11 and receive the force from the limit frame 17 to drive the filter screen 11 to reciprocate. The limit frame 17 receives the force from the adjusting rod 18 and slides reciprocally in the horizontal direction. The adjusting rod 18 is designed in a Z shape and can slide within the limit frame 17. Its main function is to drive one end of the adjusting rod 18 through a motor, and then convert the rotational motion into a linear reciprocating motion of the limit frame 17 through the rotation of the adjusting rod 18, thereby driving the movement of the filter screen 11.

[0041] The outer part of the adjusting rod 18 is in contact with the inner wall of the limit frame 17. When the adjusting rod 18 rotates, it drives the limit frame 17 to slide. At the same time, the limit frame 17 provides limit and guiding functions for the adjusting rod 18. The outer part of the impact ball 15 is slidably connected to the inside of the fixed column 13, and the fixed column 13 provides limit and guiding functions for the impact ball 15. The adjacent sides of the plurality of impact balls 156 are in contact with the front and back sides of the filter screen 11. When the filter screen 11 reciprocates and slides, it impacts the impact balls 15 on both sides to enhance the vibration effect and prevent blockage. A first chute is opened inside the box body 3, which is used to provide space for the horizontal sliding of the connecting rod 16. A second chute is opened inside the box body 3, which provides space for the horizontal sliding of the support rod. The outer part of the connecting rod 16 is slidably connected to the inside of the first chute, and the first chute provides limit and guiding functions for the connecting rod 16

[0042] When the filter screen 11 reciprocates under the action of force on the connecting rod 16, it will continuously hit the impact balls 15 on the fixed columns 13 on both sides. The impact balls 15 continuously rebound under the elastic action of the first spring 14 and hit the filter screen 11, enhancing the vibration effect of the filter screen 11 and effectively preventing the pulverized coal from accumulating and blocking on the filter screen 11. This structural relationship ensures the coordinated operation of the entire system, realizes the effective vibration of the filter screen 11, prevents the blockage problem of coal during transportation, improves the transportation efficiency, and reduces the need for manual cleaning and maintenance. During operation, the anti-blocking motor 19 is started, and through a series of mechanical linkages, the high-efficiency vibration and cleaning of the filter screen 11 are finally realized.

[0043] The anti-blocking motor 19 is fixed on the box body 3 to ensure the stable operation of the anti-blocking motor 19.

[0044] Refer to Figures 5 to 6 , this embodiment provides a coal conveying device for a thermal power plant with anti-blocking function, including an anti-blocking component 1, and also including:

[0045] An anti-blocking motor 19, used to drive the adjusting rod 18 to rotate, and the motor shaft of the anti-blocking motor 19 is fixedly connected to one end of the adjusting rod 18. A bottom plate 2121, used to support the box body 3, located at the bottom of the box body 3; support columns 22, used to support the bottom plate 2121, located on one side of the bottom plate 2121, and multiple support columns 22 are provided; sliders 23, located on the left and right sides of the support columns 22. A second spring 24, used to buffer the bottom plate 2121, located at the bottom of the slider 23; elastic rubber 26, used to buffer the bottom plate 2121, and the elastic rubber 26 is fixedly connected to the support column 22 through a sleeve column 25.

[0046] Among them, the anti-blocking motor 19 is used to drive the adjusting rod 18 to rotate, and its motor shaft is directly fixedly connected to one end of the adjusting rod 18. This design enables the motor to effectively convert the rotational motion into the rotational motion of the adjusting rod 18, thereby driving the limit frame 17 and the filter screen 11 to vibrate reciprocally to prevent material blockage.

[0047] The bottom plate 2121 is located at the bottom of the box body 3 and is mainly used to provide support for the entire box body 3. The bottom plate 2121 not only bears the weight of the box body 3 but also needs to transfer the impact force generated by the crushing component 6 to the lower support columns 22 during the operation of the device.

[0048] Multiple support columns 22 are provided, located on one side of the bottom plate 2121, providing a stable supporting effect for the bottom plate 2121. Sliders 23 are fixedly connected to the left and right sides of each support column 22 respectively, and these sliders 23 can slide along the preset track when the support column 22 moves downward, helping to disperse and guide the impact force.

[0049] When the crushing component 6 is operating or impact forces are generated during the coal conveying process, the bottom plate 2121 will transfer these forces to the support columns 22, thereby driving the slider 23 to slide downward. A second spring 24 is fixedly connected to the bottom of the slider 23, and through its elastic action, an initial buffer is provided for the bottom plate 2121. When the slider 23 moves downward due to the impact force, the second spring is compressed, and the elastic deformation of the spring is used to absorb and relieve the impact energy.

[0050] The elastic rubber 26 is fixedly connected to the support column 22 through the sleeve column 25 and is arranged on the inner wall of the bottom of the sleeve column 25. When the support column 22 continues to move downward, the elastic rubber 26 will be extruded, and its elastic characteristics are used to achieve a secondary buffer. This can further absorb the remaining impact force, greatly reducing the damage of the impact force to the device, protecting the internal components from excessive wear, and extending the service life of the equipment.

[0051] In actual operation, whether the crushing component 6 crushes the coal or the coal is conveyed in the device, certain impact forces will be generated. These impact forces are first transmitted from the bottom plate 2121 to the support column 22, causing the slider 23 to slide downward and compress the second spring 24 at the bottom to complete the initial buffer. Subsequently, the support column 22 moves further downward, extruding the elastic rubber 26 in the sleeve column 25 to achieve a secondary buffer. The combined action of this series of mechanisms significantly reduces the direct impact of the impact force on the device, improving the overall stability and durability of the equipment. At the same time, the anti-blocking motor 19 drives the adjusting rod 18 to make the filter screen 11 vibrate reciprocally, ensuring the effective filtration and smooth conveyance of the coal.

[0052] Refer to Figure 5 , this embodiment provides a coal conveying device for a thermal power plant with anti-blocking function, including a dust reduction component 5 for reducing dust spillage; a support plate 51 is installed on the side wall of the support column 22;

[0053] Among them, the support column 22 not only provides a stable support for the support plate 51, but also firmly installs the entire dust reduction system on the equipment. The design of the support plate 51 ensures the stable operation of other components thereon without being interfered by external factors.

[0054] A water tank 52 is used for storing water; a sprinkler 54 is used for spraying the stored water; the water tank 52 is fixedly connected to the top of the support plate 51, the right side of the water tank 52 is fixedly connected to a delivery pipe 53, and the top of the delivery pipe 53 is fixedly connected to the sprinkler 54.

[0055] Among them, the dust-removing component 5 reduces the problem of dust overflow generated during the transportation of coal, ensuring the air quality of the working environment. One side of the support plate 51 is fixedly connected with a plurality of support columns 22, and the water tank 52 is fixedly connected to the top of the support plate 51 for storing the water source for dust removal. The water tank 52 is the basic part of the entire dust-removing component 5, providing the necessary water resources to ensure that the sprinkler 54 can work continuously and effectively.

[0056] The conveying pipe 53 extends from the right side of the water tank 52, and its function is to convey the water stored inside the water tank 52 to the sprinkler 54. Through reasonable pipeline design, it ensures smooth water flow without obstruction, providing a stable water source supply for the sprinkler 54.

[0057] The sprinkler 54 is located at the top of the conveying pipe 53 and is fixedly connected thereto. The sprinkler 54 receives the water conveyed by the conveying pipe 53 for spraying, so that the sprayed water can contact the coal dust during transportation, thereby effectively suppressing the diffusion of dust, reducing dust overflow, and keeping the air in the working environment clean.

[0058] One side of a plurality of support columns 22 is fixedly connected with the support plate 51, which provides a solid support foundation for the water tank 52. The water tank 52 fixedly connected to the top of the support plate 51 serves as the core container for storing water, and the conveying pipe 53 fixedly connected to its right side is responsible for conveying the water in the water tank 52 to the sprinkler 54. The sprinkler 54 combines with the dust in the air by spraying fine water droplets, increasing the mass of the dust particles and causing them to settle, effectively reducing dust overflow. This series of designs are closely connected to form a complete dust-removing system, which can significantly reduce dust pollution and improve the quality of the working environment without affecting the coal transportation efficiency. During operation, just ensure that there is enough water in the water tank 52, and the system can run automatically and continuously and effectively control dust diffusion.

[0059] Refer to Figures 1 to 2 , this embodiment provides a coal conveying device for a thermal power plant with anti-blocking function, including a crushing component 6 for crushing coal. The crushing drum is used for crushing coal, and there are two crushing drums installed inside the box body 3; the crushing motor 62 is used for driving the crushing drum, and the crushing motor 62 is fixedly connected to the outside of the box body 3 through a support rod.

[0060] Among them, there are two crushing drums, and the crushing drums mesh with each other. When one of the crushing drums rotates, it drives the other crushing drum to rotate. The crushing motor 62 is used for driving the crushing drum to rotate, providing power for the crushing drum.

[0061] One end of the support rod is fixedly connected to the crushing motor 62, and the other end is fixed to the outer wall of the box body 3 to ensure the stable operation of the motor.

[0062] Refer toFigures 1 to 7 , this embodiment provides the overall operation process of the present invention.

[0063] First, start the crushing motor 62, and the crushing motor 62 drives the crushing drum to rotate to crush the coal.

[0064] Start the anti-blocking motor 19, and rotate through the adjusting rod 18 fixedly connected to its driving end. As the adjusting rod 18 rotates, the adjusting rod 18 makes a circular motion.

[0065] There is a feed inlet above the box body 3, and the coal is put into the feed inlet.

[0066] The adjusting rod 18 slides in the limit frame 17 and drives the limit frame 17 to perform reciprocating sliding in the horizontal direction.

[0067] The limit frame 17 is connected to the filter screen 11 through the connecting rod 16. Therefore, the reciprocating sliding of the limit frame 17 will drive the filter screen 11 to move left and right inside the U-shaped frame 12. During the movement of the filter screen 11, it continuously impacts the impact balls 15 connected to the fixed columns 13 on both sides. The impact balls 15 rebound and impact the filter screen 11 due to the action of the first spring 14, enhancing the vibration effect of the filter screen 11 and preventing the pulverized coal from accumulating and blocking on the filter screen 11.

[0068] When the device is running, whether the crushing component 6 crushes the coal or the coal is transported inside the device, impact forces will be generated. These impact forces are transmitted to the supporting columns 22 below through the bottom plate 2121. The sliders 23 on both sides of the supporting columns 22 compress the second spring 24 downward to absorb part of the impact force. At the same time, the supporting columns 22 continue to move downward to squeeze the elastic rubber 26 inside the sleeve column 25 to achieve secondary buffering and further absorb the remaining impact force, reducing the damage to the device.

[0069] The water tank 52 is located at the top of the support plate 51 and transports the stored water to the sprinkler 54 through the delivery pipe 53. The sprinkler 54 sprays the water received from the delivery pipe 53, so that the sprayed water can contact the coal dust during the transportation process, thereby effectively suppressing the dust diffusion, reducing the dust spillage, and keeping the air clean.

[0070] As an alternative embodiment, long rods are provided. There are two long rods, and these long rods connect several impact balls 15.

[0071] Among them, by connecting the impact balls 15 on both sides through the long rods, it can ensure that all the impact balls 15 can rebound and impact more synchronously when the filter screen 11 moves. This helps to provide a more uniform and consistent vibration effect, further reducing the accumulation of coal particles on the filter screen 11 and improving the anti-blocking efficiency.

[0072] This design increases the overall stability of the structure. Since the individual impact balls 15 are connected by long rods, their relative positions are fixed, reducing the risk of a decrease in the overall system performance caused by the displacement or failure of a single impact ball 15.

[0073] When the filter screen 11 collides with the connected impact balls 15, the force can be dispersed to multiple impact balls 15 through the long rods. This not only enables more effective utilization of the elastic restoring force of the first spring 14 but also evenly distributes the acting force on the filter screen 11, reducing wear or damage caused by local stress concentration.

[0074] Compared with the independently operating impact balls 15, the connected impact ball 15 system may be easier to inspect and maintain. Because if a problem occurs with one impact ball 15, the location of the problem can be quickly determined by observing the state of the entire long rod system, without the need to check the state of each impact ball 15 one by one.

[0075] The presence of two long rods may change the vibration mode of the system, generating a more complex vibration form, which may help to more thoroughly remove the fine pulverized coal adhering to the filter screen 11, thereby further reducing the possibility of blockage.

[0076] Finally, it should be noted that the methods and devices described in detail above are only examples, and those skilled in the art can modify these examples in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A coal conveying device for thermal power plants that prevents blockage, characterized in that: including, a clogging prevention component (1) that prevents material clogging during coal transportation and filters the crushed coal; a buffering component (2) for buffering the coal transportation process; a box body (3), wherein the clogging prevention component (1) is installed inside the box body (3), and the buffering component (2) is installed outside the box body (3); After the coal is crushed, the clogging prevention component (1) filters the crushed coal and prevents clogging during the filtering process. The buffering component (2) buffers the crushed coal to avoid damaging the components that receive the crushed coal.

2. The coal conveying device for thermal power plants with anti-blocking function according to claim 1, characterized in that The clogging prevention component (1) includes: a filter screen (11) for filtering the crushed coal; a U-shaped frame (12) provided in a symmetric group for limiting the filter screen (11); The filter screen (11) is fixedly connected to the inner wall of the box body (3), and the filter screen (11) is located between the U-shaped frames (12).

3. The coal conveying device for thermal power plants with anti-blocking function according to claim 2, characterized in that, The clogging prevention component (1) includes: a fixing column (13) fixedly connected to one side of the U-shaped frame (12). The box body (3) is provided with a first sliding groove and a second sliding groove, and the fixing column (13) passes through the first sliding groove and the second sliding groove and extends outside the box body (3); a first spring (14) fixedly connected to the fixing column (13); an impact ball (15) fixedly connected to one side of the first spring (14).

4. The coal conveying device for thermal power plants with anti-blocking function according to claim 3, characterized in that, The clogging prevention component (1) further includes: a connecting rod (16) provided in two, respectively fixedly connected to both sides of one end of the filter screen (11); a limiting frame (17) for limiting the adjusting rod (18); an adjusting rod (18) for driving the limiting frame (17) to move, which is in a Z shape, and the adjusting rod (18) slides in the limiting frame (17).

5. The coal conveying device for a thermal power plant with anti-clogging function according to claim 4, wherein, The clogging prevention component (1) further includes: a clogging prevention motor (19) for driving the adjusting rod (18) to rotate, and the motor shaft of the clogging prevention motor (19) is fixedly connected to one end of the adjusting rod (18).

6. The coal conveying device for thermal power plants with anti-blocking function according to claim 5, characterized in that, The buffering component (2) includes: a bottom plate (21) for supporting the box body (3), located at the bottom of the box body (3); support columns (22) for supporting the bottom plate (21), located on one side of the bottom plate (21), and a plurality of support columns (22) are provided; sliders (23) located on the left and right sides of the support column (15).

7. The coal conveying device for thermal power plants with anti-blocking function according to claim 6, characterized in that The buffering component (2) includes: a second spring (24) for buffering the bottom plate (21), located at the bottom of the slider (23); elastic rubber (26) for buffering the bottom plate (21), and the elastic rubber (26) is fixedly connected to the support column (22) through a sleeve column (25).

8. The coal conveying device for thermal power plants with anti-clogging function according to claim 7, characterized in that: including, a dust reduction component (5) for reducing dust spillage; a crushing component (6) for crushing the coal.

9. The coal conveying device for thermal power plants with anti-blocking function according to claim 8, characterized in that, The dust reduction component (5) includes: a support plate (51), and one side of the support plate (51) is fixedly connected to the support column (22); a water tank (52) for storing water; a sprinkler (54) for spraying water. The top of the support plate (51) is fixedly connected to a water tank (52). The right side of the water tank (52) is fixedly connected to a delivery pipe (53). The top of the delivery pipe (53) is fixedly connected to the sprayer (54).

10. The coal conveying device for thermal power plants with anti-blocking function according to claim 9, characterized in that, The crushing component (6) includes: Crushing drums (61) for crushing coal. There are two crushing drums (61), which are installed inside the box body (3). A crushing motor (62) for driving the crushing drums (61). The crushing motor (62) is fixedly connected to the outside of the box body (3) through a support rod.

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