A raw coal bin cleaning device and system

Abstract

The embodiment of the present disclosure provides a raw coal bunker cleaning device and system, which comprises a movable guide rod, a cleaning arm, a driving mechanism and an angle adjusting mechanism; the first end of the movable guide rod is inserted into the raw coal bunker; the first end of the cleaning arm is movably connected to the first end of the movable guide rod, and the second end of the cleaning arm corresponds to the inner side wall of the raw coal bunker; the angle adjusting mechanism is connected to the cleaning arm and the movable guide rod, and is used for adjusting the included angle between the cleaning arm and the movable guide rod; the driving mechanism is arranged outside the raw coal bunker and is in transmission connection with the movable guide rod, and is used for driving the cleaning arm to clean the raw coal on the inner side wall of the raw coal bunker by driving the movable guide rod. Through the movable guide rod, the cleaning arm, the driving mechanism and the angle adjusting mechanism, the raw coal bunker can be cleaned in the whole space, the risk of raw coal bunker blockage is reduced, and the stable and reliable supply of coal fuel is ensured.

Description

Technical Field

[0001] The embodiments disclosed herein belong to the field of thermal power generation technology, specifically relating to a raw coal bunker cleaning device and system. Background Technology

[0002] Coal is the primary fuel for thermal power generating units, and a stable coal supply is crucial for ensuring the long-term safe operation of these units. The main equipment for transporting coal into the boiler for combustion includes conveyor belts, raw coal bunkers, and coal feeders. Among these, the raw coal bunker, serving as a temporary storage and quantitative regulation device for coal before it enters the boiler, is most prone to blockages due to factors such as coal quality, composition, and moisture content. This blockage can lead to impeded flow and compromise the safe operation of the unit. Therefore, developing an effective and reliable raw coal bunker cleaning device is of paramount importance for thermal power generating units. Summary of the Invention

[0003] The embodiments disclosed herein are intended to at least address one of the technical problems existing in the prior art, and to provide a raw coal bunker cleaning device and system.

[0004] On one hand, embodiments of this disclosure provide a raw coal bunker cleaning device, which includes a movable guide rod, a cleaning arm, a drive mechanism, and an angle adjustment mechanism;

[0005] The first end of the movable guide rod is inserted into the raw coal bunker;

[0006] The first end of the cleaning arm is movably connected to the first end of the movable guide rod, and the second end of the cleaning arm corresponds to the inner wall of the raw coal bunker.

[0007] The angle adjustment mechanism is connected to the cleaning arm and the movable guide rod, and is used to adjust the included angle between the cleaning arm and the movable guide rod;

[0008] The drive mechanism is located outside the raw coal bunker and is connected to the movable guide rod for driving the cleaning arm to clean the raw coal on the inner wall of the raw coal bunker by driving the movable guide rod.

[0009] Optionally, the angle adjustment mechanism includes a fixed guide rail, a sliding adjuster, and a connecting rod;

[0010] One end of the fixed guide rail is fixedly connected to the first end of the movable guide rod, the sliding adjuster is slidably disposed on the fixed guide rail, and the two ends of the connecting rod are rotatably connected to the sliding adjuster and the cleaning arm, respectively.

[0011] Optionally, the angle between the cleaning arm and the movable guide rod is greater than 0° and less than 180°.

[0012] Optionally, the two ends of the connecting rod are respectively hinged to the sliding adjuster and the cleaning arm.

[0013] Optionally, the drive mechanism includes a drive motor and a transmission assembly;

[0014] The output shaft of the drive motor is driven to the transmission assembly, and the transmission assembly is driven to the movable guide rod.

[0015] Optionally, the transmission assembly includes a driving wheel and a driven wheel;

[0016] The driving wheel is driven to the output shaft of the drive motor, the driven wheel is driven to the driving wheel, and the driven wheel is driven to the movable guide rod.

[0017] Optionally, the driving wheel is a driving gear, the driven wheel is a driven gear, and the outer circumferential surface of the movable guide rod is provided with an external thread, wherein the driven gear meshes with the external thread of the movable guide rod.

[0018] Optionally, the raw coal bunker cleaning device further includes a coal dropping platform;

[0019] The coal dropping platform is located on the side away from the entrance of the raw coal bunker, and the drive mechanism is located on the side of the coal dropping platform away from the raw coal bunker.

[0020] The coal dropping platform has a through hole so that the first end of the movable guide rod passes through the through hole and is inserted into the raw coal bunker from the inlet of the raw coal bunker.

[0021] Optionally, the cross-sectional shape of the cleaning arm is wedge-shaped.

[0022] On the other hand, embodiments of this disclosure provide a raw coal bunker cleaning system, which includes a raw coal bunker and the raw coal bunker cleaning device described above.

[0023] The raw coal bunker cleaning system and apparatus of this disclosure, through the provided movable guide rod, cleaning arm, drive mechanism and angle adjustment mechanism, can remove raw materials adhering to the side wall of the raw coal bunker, and can achieve cleaning of the entire space of the raw coal bunker without dead angles, effectively reducing the risk of blockage in the raw coal bunker, ensuring the stable and reliable supply of coal and improving the safety and stability of the operation of thermal power generating units. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a raw coal bunker cleaning device according to an embodiment of the present disclosure;

[0025] Figure 2 This is a schematic diagram of the structure of a raw coal bunker cleaning device according to another embodiment of the present disclosure;

[0026] Figure 3 for Figure 2 A sectional view of a portion of the structure along line AA;

[0027] Figure 4 This is an enlarged schematic diagram of the angle adjustment mechanism of a raw coal bunker cleaning device according to another embodiment of the present disclosure;

[0028] Figure 5 for Figure 4 A sectional view of a portion of the structure along line BB. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions of this disclosure, the disclosure will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figures 1 to 5 As shown, a raw coal bunker cleaning device 100 includes a movable guide rod 110, a cleaning arm 120, a drive mechanism 130, and an angle adjustment mechanism 140. The first end of the movable guide rod 110 is inserted inside the raw coal bunker 200. The first end of the cleaning arm 120 is movably connected to the first end of the movable guide rod 110, and the second end of the cleaning arm 120 corresponds to the inner wall of the raw coal bunker 200. The angle adjustment mechanism 140 is connected to the cleaning arm 120 and the movable guide rod 110, and is used to adjust the angle between the cleaning arm 120 and the movable guide rod 110. The drive mechanism 130 is located outside the raw coal bunker 200 and is drively connected to the movable guide rod 110, and is used to drive the cleaning arm 120 to clean the raw coal on the inner wall of the raw coal bunker 200 by driving the movable guide rod 110.

[0031] Specifically, such as Figures 1 to 5 As shown, the first end of the movable guide rod 110 is inserted inside the raw coal bunker 200, and the first end of the cleaning arm 120 is movably connected to the first end of the movable guide rod 110. An angle adjustment mechanism 140 is also connected between the cleaning arm 120 and the movable guide rod 110. The angle adjustment mechanism 140 is used to adjust the angle between the cleaning arm 120 and the movable guide rod 110, so that the second end of the cleaning arm 120 can always correspond to the inner wall of the raw coal bunker 200, allowing the second end of the cleaning arm 120 to remove the raw coal adhering to the inner wall of the raw coal bunker 200. For example... Figure 1 and Figure 2 As shown, the raw coal bunker 200 can be configured with a cylindrical upper part and a trapezoidal lower part. The extension height of the cleaning arm 120 can be adjusted by the angle adjustment mechanism 140, that is, the angle between the cleaning arm 120 and the movable guide rod 110 can be adjusted so that the cleaning arm 120 can adapt to raw coal bunkers 200 of various shapes and structures. The second end of the cleaning arm 120 can always correspond to the inner wall of the raw coal bunker 200 to clean the raw coal.

[0032] The drive mechanism 130 is connected to the movable guide rod 110. Under the action of the drive mechanism 130, the movable guide rod 110 drives the cleaning arm 120 to clean the raw coal in the raw coal bunker 200, achieving thorough cleaning of the entire space of the raw coal bunker without any dead angles. It should be noted that the raw coal bunker 200 also has an outlet at the lower end, with a movable baffle door 210 inserted at the outlet. The cleaned raw coal flows downward in the raw coal bunker 200 and flows out through the movable baffle door 210. The outflowing raw coal enters the coal feeder, and after passing through the coal mill, it becomes powdery particles for combustion.

[0033] The raw coal bunker cleaning device of this disclosure, through its movable guide rod, cleaning arm, drive mechanism, and angle adjustment mechanism, can remove raw materials adhering to the sidewalls of the raw coal bunker. It achieves thorough cleaning of the entire space within the bunker, effectively reducing the risk of blockages, ensuring a stable and reliable coal supply, and improving the safety and stability of the thermal power generating unit. The design is simple and reliable, with significant anti-blockage effects.

[0034] For example, such as Figures 1 to 5 As shown, the angle adjustment mechanism 140 includes a fixed guide rail 141, a sliding adjuster 142, and a connecting rod 143. One end of the fixed guide rail 141 is fixedly connected to the first end of the movable guide rod 110, the sliding adjuster 142 is slidably disposed on the fixed guide rail 141, and both ends of the connecting rod 143 are rotatably connected to the sliding adjuster 142 and the cleaning arm 120, respectively.

[0035] Specifically, such as Figures 1 to 5 As shown, one end of the fixed guide rail 141 is fixedly connected to the first end of the movable guide rod 110. As a specific example, the movable guide rod 110 is located in the central area of ​​the raw coal bunker 200, and the top end of the fixed guide rail 141 is fixedly connected to the bottom of the first end of the movable guide rod 110. The fixed guide rail 141 and the movable guide rod 110 are coaxially arranged. A sliding adjuster 142 is slidably mounted on the fixed guide rail 141, and the sliding adjuster 142 reciprocates along the axial direction of the fixed guide rail 141. The two ends of the connecting rod 143 are rotatably connected to the sliding adjuster 142 and the cleaning arm 120, respectively. When the sliding adjuster 142 reciprocates along the fixed guide rail 141, the sliding adjuster 142 drives the connecting rod 143 to move, and the connecting rod 143 then drives the cleaning arm 120 to move. That is, the extension height of the cleaning arm 120 is adjusted by the sliding adjuster 142, and the angle between the cleaning arm 120 and the movable guide rod 110 is adjusted to make it suitable for cleaning raw coal inside the raw coal bunker 200.

[0036] Furthermore, both ends of the connecting rod 143 are hinged to the sliding adjuster 142 and the cleaning arm 120, respectively. Specifically, as shown... Figure 4 and Figure 5As shown, the two ends of the connecting rod 143 are hinged to the sliding adjuster 142 and the cleaning arm 120 respectively. The specific hinge connection method is hinge connection and bolt fixation.

[0037] Furthermore, the angle between the cleaning arm 120 and the movable guide rod 110 is greater than 0° and less than 180°. That is, the angle adjustment mechanism 140 can control the angle between the cleaning arm 120 and the movable guide rod 110 to vary between 0° and 180°.

[0038] The raw coal bunker cleaning device of the present disclosure can adjust the angle between the cleaning arm and the movable guide rod by means of the fixed guide rail, the sliding adjuster and the connecting rod, and change the height position of the cleaning arm so that the cleaning arm can adapt to the raw coal bunker with any shape.

[0039] For example, such as Figures 1 to 3 As shown, the drive mechanism 130 includes a drive motor 131 and a transmission assembly 132. The output shaft of the drive motor 131 is driveably connected to the transmission assembly 132, and the transmission assembly 132 is driveably connected to the movable guide rod 110.

[0040] Specifically, such as Figure 1 and Figure 2 As shown, the output shaft of the drive motor 131 is connected to the transmission assembly 132, which is in turn connected to the movable guide rod 110. Under the drive of the drive motor 131, the transmission assembly 132 can move, which in turn drives the cleaning arm 120 to clean the raw coal bunker 200.

[0041] Furthermore, the transmission assembly 132 includes a driving wheel 1321 and a driven wheel 1322. The driving wheel 1321 is drivenly connected to the output shaft of the drive motor 131, the driven wheel 1322 is drivenly connected to the driving wheel 1321, and the driven wheel 1322 is drivenly connected to the movable guide rod 110.

[0042] Specifically, such as Figures 1 to 3 As shown, the output shaft of the drive motor 131 drives the drive wheel 1321 to move, the drive wheel 1321 drives the driven wheel 1322 to move, and the driven wheel 1322 drives the movable guide rod 110 to move. Under the drive of the drive motor 131, the movable guide rod 110 can reciprocate along its axial direction. The movable guide rod 110 drives the cleaning arm 120 to move up and down and rotate to clean the raw coal adhering to the side wall of the raw coal bunker 200.

[0043] Furthermore, such as Figures 1 to 3As shown, the driving wheel 1321 is a driving gear, the driven wheel 1322 is a driven gear, and the outer circumferential surface of the movable guide rod 110 is provided with an external thread. The driven gear meshes with the external thread of the movable guide rod 110. That is, the drive motor 131 drives the driving gear to rotate, the driving gear drives the driven gear to rotate, and the driven gear meshes with the external thread on the outer circumferential surface of the movable guide rod 110, thereby driving the movable guide rod 110 to make up-and-down and rotational movements along the inside of the raw coal bunker 200. The cleaning arm 120, fixed to the side of the first end of the movable guide rod 110, moves up-and-down and rotates simultaneously with the movement of the movable guide rod 110, and cleans the raw coal adhering to the inner wall of the raw coal bunker 200 during the movement. The cleaning arm 120 is also adjusted in angle with the movable guide rod 110 under the action of the angle adjustment mechanism 140 to adapt to the inner wall of the raw coal bunker with different structures, so as to better clean the raw coal adhering to any area within the entire space of the raw coal bunker.

[0044] The raw coal bunker cleaning device of this disclosure, through its drive motor and drive assembly, enables the movable guide rod to reciprocate along its axial direction. With the assistance of an angle adjustment mechanism, it drives the cleaning arm to clean raw coal adhering to any area within the entire space of the raw coal bunker. This achieves thorough cleaning of the entire space without blind spots, effectively reducing the risk of blockage, ensuring a stable and reliable coal supply, and improving the safety and stability of the thermal power generating unit. The design is simple and reliable, with significant anti-blockage effect.

[0045] It should be noted that, as Figure 5 As shown, the cross-sectional shape of the cleaning arm 120 can be set to a wedge shape. The wedge design can effectively improve the cutting action of the cleaning arm 120 on the raw coal while ensuring its strength, making it easier to clean the raw coal adhering to the side wall of the raw coal bunker. Of course, the cleaning arm in this embodiment can also be set to other shapes besides wedges, and this embodiment does not impose specific limitations on this.

[0046] For example, such as Figure 1 and Figure 2 As shown, the raw coal bunker cleaning device 100 also includes a coal dropping platform 150. The coal dropping platform 150 is located on the side opposite to the inlet of the raw coal bunker 200, and the drive mechanism 130 is located on the side of the coal dropping platform 150 opposite to the raw coal bunker 200. The coal dropping platform 150 has a through hole (not shown in the figure) so that the first end of the movable guide rod 110 passes through the through hole and is inserted into the raw coal bunker 200 from the inlet.

[0047] Specifically, such as Figure 1 and Figure 2As shown, a coal dropping platform 150 is positioned above the inlet of the raw coal bunker 200, and a drive mechanism 130 is mounted on the coal dropping platform 150. The coal dropping platform 150 has a through hole extending through its thickness direction, and the first end of a movable guide rod 110 passes through this through hole and extends into the interior of the raw coal bunker 200 from its inlet. An inlet is located at the top of the raw coal bunker 200 for receiving raw coal. An outlet is located at the bottom of the raw coal bunker 200 for releasing raw coal.

[0048] The raw coal bunker cleaning device of this disclosure uses a coal falling platform to support the drive mechanism, which enables the drive mechanism and the movable guide rod to complete the transmission connection better. The device is simple and reliable as a whole.

[0049] On the other hand, embodiments of this disclosure provide a raw coal bunker cleaning system, which includes a raw coal bunker and the raw coal bunker cleaning device described above. The specific structure of the raw coal bunker cleaning device can be found in the relevant preceding descriptions, and will not be elaborated upon here.

[0050] The raw coal bunker cleaning system of this disclosure, through its installed raw coal bunker cleaning device, can remove raw materials adhering to the side walls of the raw coal bunker, achieving thorough cleaning of the entire space without dead angles. This effectively reduces the risk of blockage, ensures a stable and reliable coal supply, and improves the safety and stability of the thermal power generating unit's operation. The solution is simple and reliable in design, with significant anti-blockage effect.

[0051] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.

Claims

1. A raw coal bunker cleaning device, characterized in that, The raw coal bunker cleaning device includes a movable guide rod, a cleaning arm, a drive mechanism, and an angle adjustment mechanism; The first end of the movable guide rod is inserted into the raw coal bunker. The first end of the cleaning arm is movably connected to the first end of the movable guide rod, and the second end of the cleaning arm corresponds to the inner wall of the raw coal bunker. The angle adjustment mechanism is connected to the cleaning arm and the movable guide rod, and is used to adjust the angle between the cleaning arm and the movable guide rod. The angle adjustment mechanism includes a fixed guide rail, a sliding adjuster, and a connecting rod. One end of the fixed guide rail is fixedly connected to the first end of the movable guide rod, the sliding adjuster is slidably disposed on the fixed guide rail, and the two ends of the connecting rod are rotatably connected to the sliding adjuster and the cleaning arm, respectively. The drive mechanism is located outside the raw coal bunker and is connected to the movable guide rod for driving the cleaning arm to clean the raw coal on the inner wall of the raw coal bunker by driving the movable guide rod. The drive mechanism includes a drive motor and a transmission assembly; the output shaft of the drive motor is drive-connected to the transmission assembly, and the transmission assembly is drive-connected to the movable guide rod; The transmission assembly includes a driving wheel and a driven wheel; the driving wheel is driven to the output shaft of the drive motor, the driven wheel is driven to the driving wheel, and the driven wheel is driven to the movable guide rod; the driving wheel is a driving gear, the driven wheel is a driven gear, and the outer circumferential surface of the movable guide rod is provided with an external thread, the driven gear meshing with the external thread of the movable guide rod; The raw coal bunker cleaning device also includes a coal dropping platform; the coal dropping platform is located on the side away from the inlet of the raw coal bunker, and the drive mechanism is located on the side of the coal dropping platform away from the raw coal bunker; the coal dropping platform has a through hole so that the first end of the movable guide rod passes through the through hole and is inserted into the raw coal bunker from the inlet; the cleaning arm has a wedge-shaped cross-section.

2. The raw coal bunker cleaning device according to claim 1, characterized in that, The angle between the cleaning arm and the movable guide rod is greater than 0° and less than 180°.

3. The raw coal bunker cleaning device according to claim 2, characterized in that, The two ends of the connecting rod are respectively hinged to the sliding adjuster and the cleaning arm.

4. A raw coal bunker cleaning system, characterized in that, The raw coal bunker cleaning system includes a raw coal bunker and a raw coal bunker cleaning device as described in any one of claims 1 to 3.

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