Coal conveying belt cleaning device

By combining the friction of the cleaning cylinder with the blowing of hot air, the problem of coal sticking to the conveyor belt at low temperatures was solved, achieving efficient cleaning and cost savings.

CN121553628APending Publication Date: 2026-02-24华能牙克石发电有限公司
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Patent Information

Application Number
CN202511771271.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-28
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

Under low temperature conditions, coal is prone to sticking to the coal conveyor belt and drums, leading to deviation, wear and tear, and damage to the drum coating. Existing cleaning methods are inefficient and costly.

Method used

The cleaning process employs a combination of rolling friction cleaning with a blower-heated airflow to soften the sticky coal, achieving efficient cleaning.

Benefits of technology

It improves the cleaning effect on highly caking peat, saves on manual cleaning costs, and enhances coal transportation efficiency and equipment safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a coal conveying belt cleaning device which comprises a support and a cleaning device, the support is used for being connected with a supporting table of a coal conveying belt, a cleaning assembly comprises a driving part, a cleaning cylinder, an air blower and an electric heating part, and an output shaft of the driving part is connected with the cleaning cylinder to drive the cleaning cylinder to rotate. The sweeping cylinder is provided with a cavity extending in the axial direction of the sweeping cylinder, an opening in one end of the cavity is connected with an air blower, the joint of the air blower and the sweeping cylinder is sleeved with an electric heating piece, and the peripheral face of the sweeping cylinder is provided with a rolling brush layer and provided with a plurality of air outlets at intervals. According to the cleaning device, the blowing force and the weakening effect of hot air are combined, and meanwhile the cleaning effect on high-cohesiveness peat can be greatly improved in cooperation with friction sweeping of the sweeping cylinder.
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Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and more specifically, to a coal conveyor belt cleaning device. Background Technology

[0002] Coal conveyors are commonly used coal conveying equipment. They use belts and rollers to continuously transfer coal. However, when operating in low temperatures (such as in cold winters), coal sticks to the conveyor belts and rollers, which can easily lead to problems such as belt misalignment, wear, and damage to the roller coating. This seriously affects the efficiency of coal transportation. If cleaning is not done in time, it can also threaten the safety of the unit and increase the risk of equipment damage. There are two forms of cleaning in related technologies: manual cleaning and mechanical cleaning. Manual cleaning involves a large amount of work and high personnel costs, while mechanical cleaning is ineffective in cleaning highly adhesive mud. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of the present invention propose a coal conveyor belt cleaning device. During operation, the cleaning drum rolls and frictionally cleans the conveyor belt. At the same time, a blower delivers airflow heated by an electric heating element toward the cleaning drum. The hot air is blown onto the belt surface through the air outlet to blow and soften the sticky coal. The combination of blowing force, hot air softening, and friction cleaning can greatly improve the cleaning effect on highly viscous peat, while replacing manual cleaning, saving costs, and increasing operating efficiency.

[0005] The coal conveyor belt cleaning device of this invention includes: a support frame for connecting to the support platform of the coal conveyor belt; and a cleaning assembly including a drive unit, a cleaning cylinder, a blower, and an electric heating element. The output shaft of the drive unit is connected to the cleaning cylinder to drive the cleaning cylinder to rotate. The cleaning cylinder has a cavity extending along its axial direction. A blower is connected to the opening at one end of the cavity. An electric heating element is sleeved at the connection between the blower and the cleaning cylinder. A roller brush layer is provided on the outer circumferential surface of the cleaning cylinder, and multiple air outlets are arranged at intervals.

[0006] In the coal conveyor belt cleaning device of this invention, the output shaft of the drive component is connected to the cleaning cylinder to drive the cleaning cylinder to rotate. The cleaning cylinder has a cavity extending along its axial direction. A blower is connected to the opening at one end of the cavity. An electric heating element is sleeved at the connection between the blower and the cleaning cylinder. A roller brush layer is provided on the outer circumferential surface of the cleaning cylinder, and multiple air outlets are arranged at intervals. Thus, when the cleaning device of this application is in operation, the rolling of the cleaning cylinder can frictionally clean the conveyor belt. At the same time, the blower delivers airflow heated by the electric heating element toward the cleaning cylinder. The hot air is blown toward the belt surface through the air outlets to blow and soften the sticky coal. The combination of blowing force, hot air softening and friction cleaning can greatly improve the cleaning effect on highly sticky peat, while replacing manual cleaning, saving costs and increasing operating efficiency.

[0007] In some embodiments, the support includes a first support and a second support arranged at intervals in the width direction of the coal conveyor belt, the drive member is mounted on the first support, the free end of the output shaft is mounted on the second support via a bearing, and the cleaning cylinder is sleeved on the output shaft.

[0008] In some embodiments, the support further includes a fixed section and a telescopic section, the telescopic section being extendable and retractable in the vertical direction relative to the fixed section, the fixed section being connected to a support platform of the coal conveyor belt, and the cleaning assembly being installed on the telescopic section.

[0009] In some embodiments, the coal conveyor belt cleaning device further includes a clamp cleaning assembly, which is disposed on the support and includes a lower cleaning part and an upper cleaning part. The upper cleaning part and the lower cleaning part are respectively used to clamp the upper and lower sides of the coal conveyor belt. The upper cleaning part includes an upper fixed beam and an upper cleaning layer connected to the upper fixed beam. The lower cleaning part includes a lower fixed beam and a lower cleaning layer connected to the lower fixed beam. The upper cleaning layer and the lower cleaning layer are opposite to each other.

[0010] In some embodiments, a tension bolt is provided between the upper cleaning part and the lower cleaning part, and a tension spring is sleeved on the tension bolt, with the tension spring located between the upper cleaning part and the lower cleaning part.

[0011] In some embodiments, the support is provided with a turntable and a locking member. The locking member is used to lock and release the turntable. When the locking member locks the turntable, the turntable is fixed relative to the support. When the locking member releases the turntable, the turntable can rotate relative to the support in a first plane. The first plane is parallel to the plane where the coal conveyor belt is located. The clamp cleaning assembly is provided on the turntable.

[0012] In some embodiments, the coal conveyor belt cleaning device further includes a vision detector and a controller. The vision detector is mounted on the support and is used to detect the coal adhesion condition on the surface of the coal conveyor belt. The controller is connected to the vision detector, the drive unit, the blower, and the electric heater. The controller can adjust the power of the drive unit, the blower, and the electric heater according to the detection information of the vision detector.

[0013] In some embodiments, the controller is connected to the locking element, and the controller is capable of controlling the locking element to lock and release based on the detection information of the vision detector.

[0014] In some embodiments, the cleaning components are a plurality of spaced-apart and parallel-arranged components.

[0015] In some embodiments, the bracket is provided with a magnetic fastener. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a coal conveyor belt cleaning device according to an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the structure of the clamp cleaning assembly of the coal conveyor belt cleaning device according to an embodiment of the present invention.

[0018] Figure label: Drive unit 1, output shaft 2, cleaning cylinder 3, air outlet 4, blower 5, electric heating element 6, upper cleaning part 7, lower cleaning part 8, tensioning bolt 9, coal conveyor belt 10, clamp cleaning assembly 11. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] like Figures 1-2 As shown, the coal conveyor belt 10 cleaning device of this embodiment of the invention includes a support and a cleaning assembly.

[0021] Specifically, the bracket is used to connect with the support platform of the coal conveyor belt 10. The cleaning assembly includes a drive unit 1, a cleaning cylinder 3, a blower 5, and an electric heating element 6. The output shaft 2 of the drive unit 1 is connected to the cleaning cylinder 3 to drive the cleaning cylinder 3 to rotate. The cleaning cylinder 3 has a cavity extending along its axial direction. The blower 5 is connected to the opening at one end of the cavity. The electric heating element 6 is sleeved at the connection between the blower 5 and the cleaning cylinder 3. The outer circumferential surface of the cleaning cylinder 3 is provided with a roller brush layer and multiple air outlets 4 are arranged at intervals.

[0022] For example, when it is necessary to clean the coal conveyor belt 10, the bracket can be fixed on one side of the support platform of the coal conveyor belt 10, the surface gap between the cleaning cylinder 3 and the coal conveyor belt 10 can be adjusted, and after the adjustment is in place, the drive component 1 is started to drive the cleaning cylinder 3 to rotate, and the blower 5 and the electric heating component 6 are started at the same time. The blower blows air into the cleaning cylinder 3, and the electric heating component 6 can heat the airflow. Finally, the hot air is blown from the air outlet 4 onto the surface of the coal conveyor belt 10 to achieve the cleaning of the coal conveyor belt 10.

[0023] Understandably, the cleaning device of this application combines the blowing power and weakening effect of hot air, and together with the friction sweeping motion of the cleaning cylinder 3, it can greatly improve the cleaning effect on highly viscous peat.

[0024] In addition, the cleaning device of this application can also be used to clean coal conveying drums, and the principle remains the same, so it will not be described in detail here.

[0025] In the coal conveyor belt 10 cleaning device of this invention, the output shaft 2 of the driving component 1 is connected to the cleaning cylinder 3 to drive the cleaning cylinder 3 to rotate. The cleaning cylinder 3 has a cavity extending along its axial direction. A blower 5 is connected to the opening at one end of the cavity. An electric heating element 6 is sleeved at the connection between the blower 5 and the cleaning cylinder 3. A roller brush layer is provided on the outer circumferential surface of the cleaning cylinder 3 and multiple air outlets 4 are arranged at intervals. Thus, when the cleaning device of this application is in operation, the cleaning cylinder 3 rolls and frictionally cleans the conveyor belt. At the same time, the blower 5 delivers airflow heated by the electric heating element 6 toward the cleaning cylinder 3. The hot air is blown toward the belt surface through the air outlets 4 to blow and soften the sticky coal. The combination of blowing force, hot air softening and friction cleaning can greatly improve the cleaning effect on highly sticky peat, while replacing manual cleaning, saving costs and increasing operating efficiency.

[0026] In some embodiments, the support includes a first support and a second support arranged at intervals along the width of the coal conveyor belt 10. The drive component 1 is mounted on the first support, the free end of the output shaft 2 is mounted on the second support via a bearing, and the cleaning cylinder 3 is sleeved on the output shaft 2. In other words, the first support and the second support can be symmetrically installed on both sides of the coal conveyor belt 10 to achieve stability and balance in the assembly of the cleaning components, facilitating smooth system operation.

[0027] In some embodiments, the support also includes a fixed section and a telescopic section. The telescopic section is retractable in the vertical direction relative to the fixed section and is fixedly connected to the support platform of the coal conveyor belt 10. The cleaning assembly is installed on the telescopic section. Thus, by controlling the raising and lowering of the telescopic section, the height of the cleaning assembly can be flexibly adjusted, thereby adjusting the distance between the cleaning cylinder 3 and the coal conveyor belt 10 to meet the cleaning needs under different working conditions.

[0028] For example, when the coal on the conveyor belt 10 is thin, the telescopic section can be retracted to bring the cleaning cylinder 3 closer to the conveyor belt 10, thereby cleaning the thin layer of coal. Conversely, when the coal is thick, the telescopic section can be extended to increase the distance between the cleaning cylinder 3 and the coal. After the coal is cleaned and thinned, the telescopic section can be retracted again to adjust the distance, thus achieving flexible cleaning.

[0029] In some embodiments, the coal conveyor belt 10 cleaning device further includes a clamp cleaning assembly 11. The clamp cleaning assembly 11 is mounted on a support and includes a lower cleaning part 8 and an upper cleaning part 7. The upper cleaning part 7 and the lower cleaning part 8 are respectively used to clamp the upper and lower sides of the coal conveyor belt 10. The upper cleaning part 7 includes an upper fixed beam and an upper cleaning layer connected to the upper fixed beam. The lower cleaning part 8 includes a lower fixed beam and a lower cleaning layer connected to the lower fixed beam. The upper cleaning layer and the lower cleaning layer are opposite to each other. In other words, the cleaning device of this application includes two sets of cleaning structures, one set being a roller cleaning and the other a clamp cleaning. The combination of the two can further improve the cleaning effect.

[0030] Specifically, in practical applications, the upper cleaning part 7 and the lower cleaning part 8 are clamped on both sides of the coal conveyor belt 10. When the coal conveyor belt 10 moves, the cleaning parts on both sides will automatically block the sticky coal, forcing the sticky coal to fall off the coal conveyor belt 10, thus achieving cleaning.

[0031] Furthermore, a tension bolt 9 is provided between the upper cleaning section 7 and the lower cleaning section 8, and a tension spring is fitted onto the tension bolt 9, with the tension spring located between the upper cleaning section 7 and the lower cleaning section 8. It is understood that coal with different adhesion properties has varying degrees of bonding tightness with the coal conveyor belt 10; the tighter the bond, the greater the external force required for detachment. Therefore, by providing the tension bolt 9, the distance between the upper cleaning section 7 and the lower cleaning section 8 can be freely adjusted according to cleaning requirements, thereby adjusting the gap and pressure between the cleaning section and the coal conveyor belt 10.

[0032] Understandably, when cleaning is difficult, the upper and lower cleaning parts should be brought closer together by adjusting the tension bolt 9, thereby increasing the friction between the coal conveyor belt 10 and the cleaning part, and thus cleaning up stubborn coal.

[0033] In some embodiments, the support is provided with a turntable and a locking member. The locking member is used to lock and release the turntable. When the locking member locks the turntable, the turntable is fixed relative to the support. When the locking member releases the turntable, the turntable can rotate relative to the support in a first plane. The first plane is parallel to the plane where the coal conveyor belt 10 is located. The clamp cleaning assembly 11 is provided on the turntable.

[0034] Understandably, different coal adhesion conditions exist under different working conditions. When the drum-type cleaning assembly can meet the cleaning requirements, the clamp cleaning assembly 11 does not need to be used. At this time, the clamp cleaning assembly 11 can be locked onto the support using locking components to reduce the wear and tear on structural components. When the drum-type cleaning assembly cannot meet the cleaning requirements, the locking components are released, and then the clamp cleaning assembly 11 is controlled to rotate to the position corresponding to the coal conveyor belt 10. The clamp cleaning assembly 11 assists the drum-type cleaning assembly in cleaning the coal adhesion, thereby improving the cleaning effect.

[0035] In some embodiments, the coal conveyor belt 10 cleaning device further includes a vision detector and a controller. The vision detector is mounted on a support and is used to detect the coal adhesion condition on the surface of the coal conveyor belt 10. The controller is connected to the vision detector, the drive unit 1, the blower 5 and the electric heater. The controller can adjust the power of the drive unit 1, the blower 5 and the electric heater according to the detection information of the vision detector.

[0036] For example, when the visual detector detects a large amount of sticky coal, the controller can control the drive unit 1, blower 5 and electric heating unit 6 to increase the power, thereby increasing the cleaning frequency, blowing power and hot air softening effect, so as to ultimately improve the cleaning effect.

[0037] When the visual detector detects a low amount of sticky coal, the controller can reduce the power of the drive unit 1, blower 5 and electric heating unit 6, thereby saving costs, reducing equipment wear and tear and extending service life.

[0038] Optionally, the driving component 1 is a drive motor.

[0039] In some embodiments, the controller is connected to the locking element, and the controller can control the locking element to lock and release based on the detection information of the vision detector. Thus, when the vision detector detects that the roller cleaning assembly is not cleaning properly, the controller can control the locking element to release the clamp cleaning assembly 11, so that the clamp cleaning assembly 11 can be put into use to achieve a second cleaning process and improve the cleaning effect.

[0040] When the vision detector detects that the roller cleaning assembly can clean the area, the controller can control the locking mechanism to be in a locked state, and the clamp cleaning assembly 11 does not need to be put into use.

[0041] In some embodiments, there are multiple cleaning components arranged at intervals and in parallel. Multiple cleaning components can improve the cleaning effect, and the device as a whole can still be used even if individual cleaning components fail.

[0042] In some embodiments, the support frame is equipped with magnetic fasteners. These magnetic fasteners allow for quick assembly and disassembly of the support frame and the conveyor belt support platform, resulting in high operational efficiency and convenient relocation.

[0043] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0048] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A coal conveyor belt cleaning device, characterized in that, include: A support frame for connecting to a support platform of a coal conveyor belt; A cleaning assembly includes a drive unit, a cleaning cylinder, a blower, and an electric heating element. The output shaft of the drive unit is connected to the cleaning cylinder to drive the cleaning cylinder to rotate. The cleaning cylinder has a cavity extending along its axial direction. A blower is connected to the opening at one end of the cavity. An electric heating element is sleeved at the connection between the blower and the cleaning cylinder. The outer circumferential surface of the cleaning cylinder is provided with a roller brush layer and multiple air outlets are arranged at intervals.

2. The coal conveyor belt cleaning device according to claim 1, characterized in that, The support includes a first support and a second support arranged at intervals in the width direction of the coal conveyor belt. The drive component is mounted on the first support, the free end of the output shaft is mounted on the second support via a bearing, and the cleaning cylinder is sleeved on the output shaft.

3. The coal conveyor belt cleaning device according to claim 1, characterized in that, The support also includes a fixed section and a telescopic section. The telescopic section is retractable in the vertical direction relative to the fixed section. The fixed section is connected to the support platform of the coal conveyor belt, and the cleaning assembly is installed on the telescopic section.

4. The coal conveyor belt cleaning device according to claim 1, characterized in that, It also includes a clamp cleaning assembly, which is mounted on the support and includes a lower cleaning part and an upper cleaning part. The upper cleaning part and the lower cleaning part are respectively used to clamp the upper and lower sides of the coal conveyor belt. The upper cleaning part includes an upper fixed beam and an upper cleaning layer connected to the upper fixed beam. The lower cleaning part includes a lower fixed beam and a lower cleaning layer connected to the lower fixed beam. The upper cleaning layer and the lower cleaning layer are opposite to each other.

5. The coal conveyor belt cleaning device according to claim 4, characterized in that, A tension bolt is provided between the upper cleaning part and the lower cleaning part, and a tension spring is sleeved on the tension bolt. The tension spring is located between the upper cleaning part and the lower cleaning part.

6. The coal conveyor belt cleaning device according to claim 4, characterized in that, The support is provided with a turntable and a locking component. The locking component is used to lock and release the turntable. When the locking component locks the turntable, the turntable is fixed relative to the support. When the locking component releases the turntable, the turntable can rotate relative to the support in a first plane. The first plane is parallel to the plane where the coal conveyor belt is located. The clamp cleaning assembly is provided on the turntable.

7. The coal conveyor belt cleaning device according to claim 6, characterized in that, It also includes a vision detector and a controller. The vision detector is mounted on the support and is used to detect the coal adhesion condition on the surface of the coal conveyor belt. The controller is connected to the vision detector, the drive unit, the blower and the electric heater. The controller can adjust the power of the drive unit, the blower and the electric heater according to the detection information of the vision detector.

8. The coal conveyor belt cleaning device according to claim 7, characterized in that, The controller is connected to the locking element, and the controller can control the locking element to lock and release according to the detection information of the vision detector.

9. The coal conveyor belt cleaning device according to claim 1, characterized in that, The cleaning components are multiple units arranged at intervals and in parallel.

10. The coal conveyor belt cleaning device according to claim 1, characterized in that, The bracket is equipped with magnetic fasteners.