Coal conveying device for thermal power plant with dust removal function

Abstract

The utility model discloses a coal conveying device of thermal power plant with dust removal function concretely relates to coal conveying device of thermal power plant technical field, including conveying mechanism, support frame and cleaning mechanism, the side of conveying mechanism is installed with support frame, and the top of conveying mechanism is provided with cleaning mechanism, conveying mechanism contains drive assembly, lifting assembly and transmission component, and the side of drive assembly is provided with lifting assembly, and the outer diameter surface of drive assembly is provided with transmission component, and cleaning mechanism contains elevating assembly, translation component, dust collection component and limit rod, the side of elevating assembly is installed with translation component, and the side away from elevating assembly of translation component is provided with limit rod, and the below of translation component is installed with dust collection component, and it carries out dust removal work to conveying mechanism through cleaning mechanism.

Description

Technical Field

[0001] This utility model relates to the technical field of coal conveying devices for thermal power plants, and more specifically, to a coal conveying device for thermal power plants with dust removal function. Background Technology

[0002] In the daily operation of thermal power plants, coal transportation is a core link to ensure stable power generation. However, traditional coal conveying equipment has long faced the industry pain points of dust pollution and incomplete cleaning. The dust removal structure of some traditional coal conveying equipment is fixed. After the conveying mechanism is running, residual coal slag is easy to accumulate on the surface and edges of the conveyor belt. In traditional equipment, the dust removal components cannot be flexibly adjusted, resulting in a large number of cleaning dead corners. Long-term accumulation will aggravate the wear of the conveyor belt and cause the drive components to exceed the load limit. The existing publication number CN222118001U discloses a self-cleaning coal conveying device for thermal power plants, including a conveyor belt body, a support frame, and a feed box. The feed box is installed on the side wall of the conveyor belt body and has a buffer structure inside. The support frame is installed on the side wall of the conveyor belt body and has a cleaning structure and auxiliary structures. It belongs to the field of belt conveyor technology. As a self-cleaning coal conveying device for thermal power plants, a rotating plate can drive a cleaning plate on a rotating shaft to rotate, adjusting the angle of the cleaning plate to match the conveyor belt body. The cleaning plate can remove impurities from the conveyor belt body. When the cleaning plate needs to be replaced, rotating the rotating plate will match the unused cleaning plate on the rotating shaft with the conveyor belt body, and the previously used cleaning plate can be removed and replaced. This solves the problem that the conveyor belt needs to be stopped and cleaned again only after replacement, resulting in low cleaning efficiency. The inventors discovered the following problems in the prior art during the development of this utility model: Traditional coal conveying equipment in thermal power plants relies solely on simple spraying or passive dust filtration methods, which cannot perform active and close-range deep cleaning of the conveying mechanism after coal transportation is completed. This results in the easy accumulation and hardening of residual coal slag on the conveyor belt surface, which not only increases the frictional wear of the conveying mechanism and affects the stability of equipment operation, but also continuously generates dust during subsequent operation. Furthermore, the dust removal components of existing coal conveying equipment are mostly fixed installations, which cannot achieve lateral adjustment and can only cover a local area of ​​the conveyor belt. It is difficult to thoroughly clean residual coal slag at different locations on the edge and middle of the conveyor belt, resulting in a large number of dust removal dead zones. Therefore, a coal conveying device for thermal power plants with dust removal function is proposed to address the above problems. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a coal conveying device for thermal power plants with dust removal function to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a coal conveying device for a thermal power plant with dust removal function, comprising a conveying mechanism, a support frame, and a cleaning mechanism. The support frame is installed on the side of the conveying mechanism, and the cleaning mechanism is arranged above the conveying mechanism. The conveying mechanism includes a driving component, a lifting component, and a transmission component. The lifting component is arranged on the side of the driving component, and the transmission component is arranged on the outer diameter surface of the driving component. The cleaning mechanism includes a lifting component, a translation component, a dust suction component, and a limiting rod. The translation component is installed on the side of the lifting component, and a limiting rod is arranged on the side of the translation component away from the lifting component. The dust suction component is installed below the translation component.

[0005] Preferably, the drive assembly includes a first motor, a drive shaft, and a first roller, wherein the drive shaft is mounted on the side of the first motor, and the first roller is mounted on the outer diameter surface of the drive shaft.

[0006] Preferably, the lifting assembly includes a roller, a lifting frame, and a limiting plate, and the roller is mounted on the outer diameter surface of the lifting frame, and the limiting plate is provided on the side of the roller.

[0007] Preferably, the transmission assembly includes a conveyor belt, a transmission shaft, and a second roller, wherein the outer diameter surface of the transmission shaft is fitted with the second roller, and the outer diameter surface of the second roller is provided with the conveyor belt.

[0008] Preferably, the lifting assembly includes a cylinder, a push rod, and a lifting plate, with the push rod mounted above the cylinder and the lifting plate mounted above the push rod.

[0009] Preferably, the translation assembly includes a second motor, a threaded rod, and a threaded sleeve, wherein the threaded rod is mounted on the side of the second motor, and the threaded sleeve is mounted on the outer diameter surface of the threaded rod.

[0010] Preferably, the vacuuming assembly includes a vacuum chamber, a negative pressure motor, and a filter assembly, wherein the negative pressure motor is installed on the inner side of the vacuum chamber, and the filter assembly is provided on the side of the negative pressure motor.

[0011] Preferably, the output shaft of the second motor and the threaded rod are connected by a coupling, and the second motor drives the threaded rod to rotate around the axis of the output shaft of the second motor. The threaded rod and the threaded sleeve are connected by threads.

[0012] The technical effects and advantages of this utility model are as follows: 1. Compared with the prior art, this coal conveying device for thermal power plants with dust removal function removes dust from the conveying mechanism through a cleaning mechanism. After the coal is conveyed, the cleaning mechanism can adjust the height of the dust collection component through the lifting component to lower it to a position close to the conveying mechanism, ensuring that the dust collection component can capture coal slag and dust on the surface and surrounding area of ​​the conveyor belt at close range. When the negative pressure motor in the dust collection component runs, it forms a strong negative pressure in the dust collection box, which can quickly suck the residual coal slag into the box. At the same time, the filter group filters the dust-laden air.

[0013] 2. Compared with the existing technology, this coal conveying device for thermal power plants with dust removal function can achieve comprehensive dust removal of the entire conveyor belt through the translation component. The second motor in the translation component drives the threaded rod to rotate. The threaded engagement between the threaded rod and the threaded sleeve converts the rotational motion into linear motion, thereby driving the dust collection component to move smoothly along the axial direction of the threaded rod. During this process, the limit rod effectively limits the translation range, avoids overtravel operation, and ensures that the dust collection component can cover the entire length of the conveyor belt. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the cleaning mechanism of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the lifting component of this utility model.

[0017] Figure 4 For the present utility model Figure 3 A schematic diagram of the structure at point A.

[0018] The attached figures are labeled as follows: 1. Conveying mechanism; 2. Support frame; 3. Cleaning mechanism; 4. Drive assembly; 5. Lifting assembly; 6. Transmission assembly; 7. Lifting assembly; 8. Translation assembly; 9. Dust collection assembly; 10. Limiting rod; 11. First motor; 12. Drive shaft; 13. First roller; 14. Idler roller; 15. Lifting frame; 16. Limiting plate; 17. Conveyor belt; 18. Transmission shaft; 19. Second roller; 20. Cylinder; 21. Push rod; 22. Lifting plate; 23. Second motor; 24. Threaded rod; 25. Threaded sleeve; 26. Dust collection box; 27. Negative pressure motor; 28. Filter assembly. Detailed Implementation

[0019] 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.

[0020] Example 1 As attached Figures 1 to 4 The coal conveying device for a thermal power plant with dust removal function shown includes a conveying mechanism 1, a support frame 2, and a cleaning mechanism 3. The support frame 2 is installed on the side of the conveying mechanism 1, and the cleaning mechanism 3 is arranged above the conveying mechanism 1. The conveying mechanism 1 includes a drive component 4, a lifting component 5, and a transmission component 6. The lifting component 5 is arranged on the side of the drive component 4, and the transmission component 6 is arranged on the outer diameter surface of the drive component 4. The cleaning mechanism 3 includes a lifting component 7, a translation component 8, a dust suction component 9, and a limit rod 10. The translation component 8 is installed on the side of the lifting component 7, and the limit rod 10 is arranged on the side of the translation component 8 away from the lifting component 7. The dust suction component 9 is installed below the translation component 8.

[0021] The device utilizes conveying, supporting, and cleaning mechanisms to transport coal and clean the conveying mechanism 1 after coal transport. The support frame 2 provides stable support for the conveying mechanism 1, ensuring structural stability while carrying coal. The conveying mechanism 1, as a transport unit, is powered by the drive assembly 4, supported by the lifting assembly 5, and the transmission assembly 6 facilitates material transfer. The cleaning mechanism 3 is located above the conveying mechanism 1, and the height of the dust collection assembly 9 is adjusted by the lifting assembly 7. During coal transport, the operator raises the dust collection assembly 9; when cleaning the conveying mechanism 1 is required, the operator lowers the dust collection assembly 9 to a position close to the conveying mechanism 1 using the lifting assembly 7. The translation assembly 8 provides lateral coverage, and the dust collection assembly 9 collects dust. The limit rod 10 restricts the movement range of the translation assembly 8 to prevent overtravel. The entire system forms an integrated structure for both transport and dust removal, achieving coal transport and dust control.

[0022] Example 2 Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details: In a preferred embodiment, the drive assembly 4 includes a first motor 11, a drive shaft 12, and a first roller 13. The drive shaft 12 is mounted on the side of the first motor 11, and the first roller 13 is mounted on the outer diameter surface of the drive shaft 12. The drive assembly 4 is the power source of the conveying mechanism 1. The first motor 11 outputs torque, which is transmitted to the first roller 13 through the drive shaft 12, causing the first roller 13 to rotate, thereby driving the transmission assembly 6 to run. This forms a power chain for power output, transmission, and execution, providing continuous power for the entire conveying process.

[0023] In a preferred embodiment, the lifting assembly 5 includes a roller 14, a lifting frame 15, and a limiting plate 16. The roller 14 is mounted on the outer diameter surface of the lifting frame 15, and the limiting plate 16 is provided on the side of the roller 14. The lifting assembly 5 provides support and limitation for the conveying mechanism 1. The lifting frame 15 serves as a basic structure to fix the roller 14. The roller 14 supports the transmission assembly 6 through rolling contact, reducing frictional resistance during transmission. The limiting plate 16 is installed on the side of the roller 14 to prevent the roller 14 from deviating due to force, ensuring that it runs within a preset trajectory.

[0024] In a preferred embodiment, the transmission assembly 6 includes a conveyor belt 17, a transmission shaft 18, and a second roller 19. The second roller 19 is mounted on the outer diameter surface of the transmission shaft 18, and the conveyor belt 17 is disposed on the outer diameter surface of the second roller 19. The transmission assembly 6 is the direct execution unit for material conveying. The transmission shaft 18 drives the second roller 19 to rotate. The second roller 19, in conjunction with the drive assembly 4, drives the conveyor belt 17 to circulate through friction. Coal is placed on the conveyor belt 17 and moves with it, realizing the conveying from one end to the other.

[0025] In a preferred embodiment, the lifting assembly 7 includes a cylinder 20, a push rod 21, and a lifting plate 22. The push rod 21 is mounted above the cylinder 20, and the lifting plate 22 is mounted above the push rod 21. The lifting assembly 7 adjusts the height of the cleaning mechanism 3 by pneumatic drive. After compressed air is introduced into the cylinder 20, it generates a telescopic force, which pushes the push rod 21 to move up and down, thereby driving the lifting plate 22 and the translation assembly 8 and the dust collection assembly 9 mounted on it to rise and fall synchronously to adapt to different dust removal height requirements.

[0026] In a preferred embodiment, the translation component 8 includes a second motor 23, a threaded rod 24, and a threaded sleeve 25. The threaded rod 24 is mounted on the side of the second motor 23, and the threaded sleeve 25 is mounted on the outer diameter surface of the threaded rod 24. The translation component 8 achieves lateral coverage of the dust collection component 9. The second motor 23 outputs rotational power to drive the threaded rod 24 to rotate. The rotation of the threaded rod 24 is converted into linear motion of the threaded sleeve 25, thereby driving the dust collection component 9 to translate axially along the threaded rod 24 and expand the dust removal range.

[0027] In a preferred embodiment, the dust collection assembly 9 includes a dust collection box 26, a negative pressure motor 27, and a filter assembly 28. The negative pressure motor 27 is installed on the inner wall side of the dust collection box 26, and the filter assembly 28 is provided on the side of the negative pressure motor 27. The dust collection assembly 9 is the core execution unit of the dust removal function. When the negative pressure motor 27 is running, it generates negative pressure in the dust collection box 26, which draws the dust above the conveying mechanism 1 into the dust collection box 26. The filter assembly 28 is installed on the side of the negative pressure motor 27 to filter the dust-laden air that is drawn in, trapping dust particles. The purified air is then discharged, thus achieving dust collection and air purification.

[0028] In a preferred embodiment, the output shaft of the second motor 23 and the threaded rod 24 are connected by a coupling. The second motor 23 drives the threaded rod 24 to rotate around the output shaft axis of the second motor 23. The threaded rod 24 and the threaded sleeve 25 are connected by threads.

[0029] The working process of this utility model is as follows: First, when the operator uses the equipment, he first checks whether the support frame 2 is stable to ensure that the conveying mechanism 1 is installed reliably. Then, he starts the first motor 11 in the drive assembly 4. The first motor 11 outputs power to drive the drive shaft 12 to rotate. The drive shaft 12 further drives the first roller 13 on its outer diameter surface to rotate. The first roller 13 cooperates with the transmission assembly 6 to make the transmission shaft 18 drive the second roller 19 on its outer diameter to rotate synchronously. The second roller 19 drives the conveyor belt 17 to circulate through friction. At the same time, the idler roller 14 fixed by the lifting frame 15 in the lifting assembly 5 supports the conveyor belt 17 in a rolling manner and reduces the frictional resistance between the idler roller 14 and the conveyor belt 17. The limiting plate 16 on the side of the idler roller 14 prevents the conveyor belt 17 from deviating. At this time, the operator places the coal on the conveyor belt 17, and the coal can be transported by the conveying mechanism 1.

[0030] During the conveying process, compressed air needs to be introduced into the cylinder 20 through the lifting component 7 of the cleaning mechanism 3, so that the cylinder 20 pushes the push rod 21 to drive the lifting plate 22 to rise, thereby allowing the translation component 8 and the dust collection component 9 connected to the lifting plate 22 to rise synchronously, so as to avoid interfering with the coal conveying.

[0031] After the coal is transported, the operator adjusts the cylinder 20 again through the lifting component 7, so that the push rod 21 drives the lifting plate 22, the translation component 8 and the dust collection component 9 to a position close to the conveyor belt 17. Then, the second motor 23 of the translation component 8 is started. The output shaft of the second motor 23 drives the threaded rod 24 to rotate around its own axis through the coupling. The threaded rod 24 and the threaded sleeve 25 are threaded together, so that the threaded sleeve 25 drives the dust collection component 9 to translate along the axial direction of the threaded rod 24. During the translation process, the limit rod 10 on one side of the translation component 8 restricts its overtravel. The above is the working principle of this coal conveying device for thermal power plants with dust removal function.

Claims

1. A coal conveying device for a thermal power plant with dust removal function, comprising a conveying mechanism (1), a support frame (2), and a cleaning mechanism (3), characterized in that: The conveying mechanism (1) is provided with a support frame (2) on its side and a cleaning mechanism (3) is provided above the conveying mechanism (1). The conveying mechanism (1) includes a drive assembly (4), a lifting assembly (5) and a transmission assembly (6). The drive assembly (4) is provided with a lifting assembly (5) on its side and a transmission assembly (6) on its outer diameter surface. The cleaning mechanism (3) includes a lifting assembly (7), a translation assembly (8), a dust collection assembly (9) and a limiting rod (10). The lifting assembly (7) is provided with a translation assembly (8) on its side and a limiting rod (10) is provided on the side of the translation assembly (8) away from the lifting assembly (7). The translation assembly (8) is provided with a dust collection assembly (9) below the translation assembly (8).

2. A coal conveying device for a thermal power plant with dust removal function according to claim 1, characterized in that: The drive assembly (4) includes a first motor (11), a drive shaft (12) and a first roller (13), and the drive shaft (12) is mounted on the side of the first motor (11), and the first roller (13) is mounted on the outer diameter surface of the drive shaft (12).

3. A coal conveying device for a thermal power plant with dust removal function according to claim 1, characterized in that: The lifting assembly (5) includes a roller (14), a lifting frame (15) and a limiting plate (16), and the roller (14) is mounted on the outer diameter surface of the lifting frame (15), and the limiting plate (16) is provided on the side of the roller (14).

4. A coal conveying device for a thermal power plant with dust removal function according to claim 1, characterized in that: The transmission assembly (6) includes a conveyor belt (17), a transmission shaft (18), and a second roller (19), and the second roller (19) is mounted on the outer diameter surface of the transmission shaft (18), and the conveyor belt (17) is provided on the outer diameter surface of the second roller (19).

5. A coal conveying device for a thermal power plant with dust removal function according to claim 1, characterized in that: The lifting assembly (7) includes a cylinder (20), a push rod (21) and a lifting plate (22), and the push rod (21) is installed above the cylinder (20), and the lifting plate (22) is installed above the push rod (21).

6. A coal conveying device for a thermal power plant with dust removal function according to claim 1, characterized in that: The translation component (8) includes a second motor (23), a threaded rod (24) and a threaded sleeve (25), and the threaded rod (24) is mounted on the side of the second motor (23), and the threaded sleeve (25) is mounted on the outer diameter surface of the threaded rod (24).

7. A coal conveying device for a thermal power plant with dust removal function according to claim 1, characterized in that: The vacuum assembly (9) includes a vacuum box (26), a negative pressure motor (27) and a filter assembly (28), and the negative pressure motor (27) is installed on the inner wall side of the vacuum box (26), and the filter assembly (28) is provided on the side of the negative pressure motor (27).

8. A coal conveying device for a thermal power plant with dust removal function according to claim 6, characterized in that: The output shaft of the second motor (23) and the threaded rod (24) are connected by a coupling, and the second motor (23) drives the threaded rod (24) to rotate around the output shaft axis of the second motor (23). The threaded rod (24) and the threaded sleeve (25) are connected by threads.

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