Belt conveyor system and self-cleaning method

Abstract

The invention provides a belt conveyor system and a self-cleaning method.The belt conveyor system comprises a belt conveyor, a damage detection device and a self-cleaning device arranged corresponding to the damage detection device, and the self-cleaning device comprises a detection cleaning box, a scraper dust removal unit, an air curtain dust removal unit, a rotary cleaning unit and a dust collection unit; the damage detection device is arranged in the detection cleaning box, and a blanking groove is formed in the top of the detection cleaning box; the scraper dust removal unit is arranged on the detection cleaning box and comprises a scraper piece rotationally arranged at the top of the detection cleaning box; the air curtain dust removal unit and the rotary cleaning unit are both arranged in the detection cleaning box, the air curtain dust removal unit is provided with a plurality of exhaust outlets which surround to form an air curtain for dust removal and suppression, and the rotary cleaning unit is used for rotationally cleaning the surface of the damage detection device; the dust collection unit is arranged on one side of the detection cleaning box and communicates with the interior of the detection cleaning box. By adopting the scheme, the cleaning effect on the damage detection device can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of self-cleaning of a belt tear detection unit in an open-pit mine, and in particular to a belt conveyor system and a self-cleaning method. Background Art

[0002] As one of the indispensable equipment in the open-pit mine belt conveyor system, the damage detection device plays the role of detecting belt tearing faults during the transportation process in coal mines and is the core equipment to ensure the safety of belt transportation.

[0003] Due to the particularity of the coal mine environment, the damage detection device is affected by factors such as the environment and operating process. The detection effect of the damage detection device is easily affected by harsh working conditions such as dust, coal slime and snow, and false alarms are prone to occur, affecting the stable operation of coal mine production.

[0004] To address these issues, a self-cleaning device for damage detection devices has been developed. However, existing self-cleaning devices primarily rely on roller brushes and scrapers for cleaning. While this method does a good job of cleaning the tear detection unit, it is limited in the area of ​​cleaning coverage. Furthermore, existing self-cleaning devices are unable to remove debris such as coal dust and snow from the outside of the tear detection unit, impacting detection effectiveness. Summary of the Invention

[0005] The present invention provides a belt conveyor system and a self-cleaning method to improve the cleaning effect of a damage detection device.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, the present invention provides a belt conveyor system, which includes a belt conveyor and a damage detection device arranged between the upper and lower belts of the belt conveyor. The belt conveyor system also includes a self-cleaning device arranged corresponding to the damage detection device, the self-cleaning device including a detection cleaning box, a scraper dust removal unit, an air curtain dust removal unit, a rotary cleaning unit and a dust collecting unit. The damage detection device is arranged in the detection cleaning box, and the top of the detection cleaning box has a blanking chute; the scraper dust removal unit is arranged on the detection cleaning box and includes a scraper member rotatably arranged on the top of the detection cleaning box, the scraper member is used to sweep debris on the top of the detection cleaning box from the blanking chute into the detection cleaning box; the air curtain dust removal unit and the rotary cleaning unit are both arranged inside the detection cleaning box, the air curtain dust removal unit has multiple exhaust ports, and the multiple exhaust ports are surrounded to form an air curtain for dust removal and dust suppression, and the rotary cleaning unit is used to rotate and clean the surface of the damage detection device; the dust collecting unit is arranged on one side of the detection cleaning box and is connected to the interior of the detection cleaning box, and the dust collecting unit is used to discharge debris in the detection cleaning box in a centralized manner.

[0007] Furthermore, the scraper dust removal unit includes a protective shell and a driving member and a transmission assembly arranged in the protective shell. The protective shell is fixedly arranged on one side of the detection and cleaning box, and the blanking trough is located on the side of the top of the detection and cleaning box close to the protective shell. The transmission assembly includes a transmission gear and a gear shaft fixedly connected to the transmission gear. One end of the gear shaft protrudes from the top of the protective shell and is connected to one end of the scraper member. The scraper member is at least partially fitted with the top of the detection and cleaning box. The transmission assembly and the scraper member are symmetrically arranged in at least two groups. The transmission gears of at least two groups of transmission assemblies are meshed with each other, and the driving member is drivingly connected to one of the transmission gears.

[0008] Furthermore, the scraper piece is an arc-shaped strip piece and is chamfered on one side facing the top of the detection and cleaning box. A plurality of enclosures are provided on the outer periphery of the top of the detection and cleaning box, and the plurality of enclosures are provided on the side where the protective shell and the scraper piece are located.

[0009] Furthermore, the air curtain dust removal unit includes an air compressor, an air duct and multiple air curtain assemblies connected in sequence, and the multiple air curtain assemblies are distributed at least on both sides and the bottom of the damage detection device. The air curtain assembly includes an air duct, an end cover and multiple air nozzles facing the damage detection device. One end of the air duct is connected to the air duct, and the end cover is arranged at the other end of the air duct. The multiple air nozzles are arranged at intervals along the extension direction of the air duct to form multiple exhaust outlets. The extension directions of the multiple air curtain assemblies are parallel to the axial direction of the damage detection device.

[0010] Furthermore, the rotary cleaning unit includes a driving assembly, a support frame group, a rotating scraper and a belt transmission structure having a large pulley side and a small pulley side. The damage detection device and the rotating scraper are both rotatably arranged side by side on the support frame group through a bearing seat. The driving assembly is connected to the damage detection device through the large pulley side of the belt transmission structure, and the driving assembly is connected to the rotating scraper through the small pulley side of the belt transmission structure to drive the damage detection device and the rotating scraper to rotate synchronously at different speeds. The rotating scraper has a plurality of scraping ends spaced apart along its circumference, and any scraping end can be detachably tangent to the outer periphery of the damage detection device to perform rotational scraping on the surface of the damage detection device.

[0011] Furthermore, the driving assembly includes a motor base, a driving motor arranged on the motor base, and a coupling. The motor base is arranged on one side of the detection and cleaning box in the axial direction and is connected to the rotating shaft of the detection and cleaning box through a coupling; the rotating scraper includes a central rotating shaft and a cylindrical scraper sleeved on the outer periphery of the central rotating shaft. The cylindrical scraper has a plurality of toothed plates distributed along its circumference and extending along its axial direction. The plurality of toothed plates are all arc-shaped and bent along the rotation direction of the rotating scraper. The side of the toothed plate facing away from the central rotating shaft is chamfered to form a scraping end.

[0012] Furthermore, the dust collection unit includes a dust collecting box, a dust collecting pipe and a dust collecting fan. The dust collecting box is arranged on one side of the detection and cleaning box and is connected to the interior of the detection and cleaning box through the dust collecting pipe. The dust collecting fan is arranged on the dust collecting pipe to form an airflow flowing from the interior of the detection and cleaning box to the dust collecting box.

[0013] Furthermore, the bottom of the blanking chute is tilted and has a blanking opening at the lowest point, and the connecting position between the dust collecting pipe and the detection and cleaning box is located below the blanking opening.

[0014] Furthermore, the self-cleaning device also includes a mounting frame and a shock-absorbing assembly. The mounting frame is fixedly arranged between the upper and lower belts of the belt conveyor. At least one set of damage detection device and self-cleaning device is arranged on the mounting frame. Any detection and cleaning box is arranged on the mounting frame through multiple shock-absorbing assemblies.

[0015] According to another aspect of the present invention, a self-cleaning method is provided. The self-cleaning method is applied to the above-mentioned belt conveyor system. The belt conveyor system also includes a control unit. The control unit is electrically connected to the damage detection device, the scraper dust removal unit, the air curtain dust removal unit, the rotary cleaning unit, and the dust collection unit. The self-cleaning method includes:

[0016] S1: When the detection clarity of the damage detection device decreases, the control unit controls the self-cleaning device to start;

[0017] S2: Control the scraper dust removal unit to operate and use the scraper to sweep the debris on the top of the inspection and cleaning box from the drop chute into the interior of the inspection and cleaning box;

[0018] S3: Control the rotation cleaning unit to operate and scrape and clean the periphery of the damage detection device;

[0019] S4: Control the operation of the air curtain dust removal unit to form an air curtain for dust removal and dust blocking around the damage detection device;

[0020] S5: Control the dust collection unit to discharge the debris in the detection and cleaning box;

[0021] The order of S2, S3 and S4 is adjustable, and / or at least one of S2, S3 and S4 is performed simultaneously with S5.

[0022] The technical solution of the present invention is applied to provide a belt conveyor system, which includes a belt conveyor and a damage detection device arranged between the upper and lower belts of the belt conveyor. The belt conveyor system also includes a self-cleaning device arranged corresponding to the damage detection device. The self-cleaning device includes a detection cleaning box, a scraper dust removal unit, an air curtain dust removal unit, a rotating cleaning unit and a dust collecting unit. The damage detection device is arranged in the detection cleaning box, and the top of the detection cleaning box is provided with a blanking chute; the scraper dust removal unit is arranged on the detection cleaning box and includes a scraper member rotatably arranged on the top of the detection cleaning box, and the scraper member is used to sweep debris on the top of the detection cleaning box from the blanking chute into the detection cleaning box; the air curtain dust removal unit and the rotating cleaning unit are both arranged inside the detection cleaning box, and the air curtain dust removal unit has multiple exhaust ports, which surround and form an air curtain for dust removal and dust suppression, and the rotating cleaning unit is used to rotate and clean the surface of the damage detection device; the dust collecting unit is arranged on one side of the detection cleaning box and is connected to the interior of the detection cleaning box, and the dust collecting unit is used to discharge debris in the detection cleaning box in a centralized manner.

[0023] This solution allows the damage detection device to be cleaned through a self-cleaning device, ensuring its detection accuracy and clarity. Specifically, the damage detection device is protected by a detection cleaning box, facilitating the setup and installation of multiple cleaning components. A scraper dust removal unit cleans the top of the detection cleaning box to prevent the accumulation of coal dust and snow. An air curtain dust removal unit forms an air curtain around the damage detection device within the detection cleaning box, preventing dust from settling on the damage detection device and removing dust from the damage detection device. The rotating scraper of the cleaning unit cleans sticky and bulky contaminants from the periphery of the damage detection device. The dust collection unit then centrally discharges contaminants such as dust and snow swept into the detection cleaning box by the scraper dust removal unit, as well as dust and turbid gas within the detection cleaning box. This arrangement significantly improves the cleaning efficiency and effectiveness of the damage detection device in the belt conveyor system, thereby reducing false alarms of belt tears and improving the economic benefits of coal mines. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 A partial structural schematic diagram of a belt conveyor system provided by an embodiment of the present invention is shown;

[0026] Figure 2 Shown Figure 1 A schematic structural diagram of a self-cleaning device;

[0027] Figure 3 Shown Figure 2 A schematic diagram of the structure of one of the detection cleaning boxes;

[0028] Figure 4 Shown Figure 3 Schematic diagram of the internal structure;

[0029] Figure 5 Shown Figure 4 Schematic diagram of the structure of the dust collection pipe, dust collection fan and blanking chute;

[0030] Figure 6 Shown Figure 4 Schematic diagram of the structure of the transmission assembly and scraper components;

[0031] Figure 7 Shown Figure 2 A schematic structural diagram of the rotary cleaning unit and the air curtain dust removal unit of the self-cleaning device;

[0032] Figure 8 Shown Figure 7 Schematic diagram of the structure from another perspective;

[0033] Figure 9 Shown Figure 7 Schematic diagram of the structure of the rotating scraper;

[0034] Figure 10 Shown Figure 7 Schematic diagram of the structure of the medium-wind curtain dust removal unit;

[0035] Figure 11 Shown Figure 10 Schematic diagram of the structure of the wind curtain assembly.

[0036] The above drawings include the following reference numerals:

[0037] 1. Self-cleaning device; 2. Control unit; 3. Belt conveyor; 4. Damage detection device; 401. Tear detection roller;

[0038] 10. Inspection and cleaning box; 101. Material drop chute; 1011. Material drop opening; 11. Enclosure;

[0039] 20. Scraper dust removal unit; 21. Protective housing; 211. Gear box; 212. Motor box; 22. Driving element; 23. Transmission assembly; 231. Transmission gear; 232. Gear shaft; 24. Scraper element;

[0040] 30. Air curtain dust removal unit; 31. Air compressor; 32. Air cylinder; 33. Air curtain assembly; 331. Air duct; 332. End cover; 333. Air nozzle;

[0041] 40. Rotating cleaning unit; 41. Driving assembly; 411. Motor base; 412. Driving motor; 413. Coupling; 42. Support frame assembly; 421. First support frame assembly; 422. Second support frame assembly; 43. Rotating scraper; 431. Central rotating shaft; 432. Cylindrical scraper; 44. Belt transmission structure;

[0042] 50. Dust collection unit; 51. Dust collection box; 52. Dust collection pipe; 53. Dust collection fan;

[0043] 60. Mounting frame;

[0044] 70. Shock absorber assembly;

[0045] 81. First bearing seat; 82. Second bearing seat. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative work are within the scope of protection of the present invention.

[0047] like Figures 1 to 11 As shown, an embodiment of the present invention provides a belt conveyor system, which includes a belt conveyor 3 and a damage detection device 4 arranged between the upper and lower belts of the belt conveyor 3. The belt conveyor system also includes a self-cleaning device 1 arranged corresponding to the damage detection device 4. The self-cleaning device 1 includes a detection cleaning box 10, a scraper dust removal unit 20, an air curtain dust removal unit 30, a rotary cleaning unit 40 and a dust collection unit 50. The damage detection device 4 is arranged in the detection cleaning box 10, and the top of the detection cleaning box 10 is provided with a drop chute 101; the scraper dust removal unit 20 is arranged on the detection cleaning box 10 and includes a rotatable device A scraper member 24 is placed on the top of the detection and cleaning box 10, and the scraper member 24 is used to sweep the debris on the top of the detection and cleaning box 10 from the blanking chute 101 into the detection and cleaning box 10; the air curtain dust removal unit 30 and the rotary cleaning unit 40 are both arranged inside the detection and cleaning box 10, and the air curtain dust removal unit 30 has multiple exhaust ports, and the multiple exhaust ports are surrounded to form an air curtain for dust removal and dust suppression, and the rotary cleaning unit 40 is used to rotate and clean the surface of the damage detection device 4; the dust collecting unit 50 is arranged on one side of the detection and cleaning box 10 and is connected to the interior of the detection and cleaning box 10, and the dust collecting unit 50 is used to discharge the debris in the detection and cleaning box 10 in a centralized manner.

[0048] In this embodiment, the self-cleaning device 1 cleans the damage detection device 4, ensuring the detection accuracy and clarity of the damage detection device 4. Specifically, the detection cleaning box 10 protects the damage detection device 4 and facilitates the arrangement and installation of multiple cleaning components. The scraper dust removal unit 20 cleans the top of the detection cleaning box 10 to prevent the accumulation of coal dust and snow on the top. The air curtain dust removal unit forms an air curtain around the damage detection device 4 in the detection cleaning box 10 to prevent dust from falling on the damage detection device 4 and to remove dust from the damage detection device 4. The scraper member 24 of the rotating cleaning unit 40 cleans sticky and large contaminants on the periphery of the damage detection device 4. The dust collection unit 50 centrally discharges dust, snow, and other contaminants swept into the detection cleaning box 10 by the scraper dust removal unit 20, as well as dust, turbid gas, and other contaminants within the detection cleaning box 10. This arrangement greatly improves the cleaning efficiency and cleaning effect of the damage detection device 4 of the belt conveyor 3 system, thereby reducing the occurrence of false alarms of belt tearing, which is beneficial to improving the economic benefits of the coal mine.

[0049] like Figures 2 to 6 As shown, the scraper dust removal unit 20 includes a protective shell 21 and a driving member 22 and a transmission assembly 23 arranged in the protective shell 21. The protective shell 21 is fixedly arranged on one side of the detection and cleaning box 10, and the blanking trough 101 is located on the side of the top of the detection and cleaning box 10 close to the protective shell 21. The transmission assembly 23 includes a transmission gear 231 and a gear shaft 232 fixedly connected to the transmission gear 231. One end of the gear shaft 232 protrudes from the top of the protective shell 21 and is connected to one end of the scraper member 24. The scraper member 24 is at least partially in contact with the top of the detection and cleaning box 10. The transmission assembly 23 and the scraper member 24 are symmetrically arranged in at least two groups. The transmission gears 231 of at least two groups of transmission assemblies 23 are meshed in pairs, and the driving member 22 is drive-connected to one of the transmission gears 231.

[0050] In this embodiment, the protective shell 21 includes a gear box 211 and a motor box 212. The motor box 212 is located below the gear box 211. The driving member 22 is a motor disposed in the motor box 212. The transmission assembly 23 is disposed in the gear box 211. The protective shell 21 protects the driving member 22 and the transmission assembly 23, thereby ensuring the reliability and stability of the drive. Furthermore, in this embodiment, the transmission assembly 23 and the scraper member 24 are symmetrically arranged in two groups. The two scraper members 24 respectively scrape and clean the two halves of the top of the inspection and cleaning box 10. A single driving member 22 can achieve synchronous reverse drive of the two transmission assemblies 23, thereby achieving reverse rotation of the two scraper members 24 to clean the top of the inspection and cleaning box 10 on each side, thereby improving the cleaning effect and efficiency.

[0051] Specifically, the scraper member 24 is an arc-shaped strip member and is chamfered on one side facing the top of the detection and cleaning box 10. A plurality of enclosures 11 are provided on the outer periphery of the top of the detection and cleaning box 10. The plurality of enclosures 11 are provided on the side where the protective shell 21 and the scraper member 24 are located.

[0052] This arrangement is conducive to improving the cleaning effect of the scraper 24 on the detection and cleaning box 10. On the other hand, the plurality of enclosures 11 are conducive to stopping dust, snow and other debris that fall on the top of the detection and cleaning box 10, preventing them from being scraped from other sides onto the belt conveyor 3 during the cleaning process of the scraper 24.

[0053] like Figure 4 、 Figure 7 、 Figure 10 and Figure 11 As shown, the air curtain dust removal unit 30 includes an air compressor 31, an air cylinder 32 and a plurality of air curtain assemblies 33 connected in sequence. The plurality of air curtain assemblies 33 are distributed at least on both sides and the bottom of the damage detection device 4. The air curtain assembly 33 includes an air duct 331, an end cover 332 and a plurality of air nozzles 333 facing the damage detection device 4. One end of the air duct 331 is connected to the air cylinder 32, and the end cover 332 is arranged at the other end of the air duct 331. The plurality of air nozzles 333 are spaced apart along the extension direction of the air duct 331 to form a plurality of exhaust outlets. The extension directions of the plurality of air curtain assemblies 33 are all parallel to the axial direction of the damage detection device 4.

[0054] In this embodiment, the damage detection device 4 includes a tear detection drum 401 and a detection assembly disposed within the tear detection drum 401. Multiple air nozzles 333 of multiple air curtain assemblies 33 are disposed toward the tear detection drum 401. The air curtain dust removal unit 30 generates airflow from the air duct 32 to the multiple air curtain assemblies 33 via an air compressor 31. The airflow passes through the air duct 331 of the air curtain assembly 33 and is ejected from the multiple air nozzles 333. The airflow ejected from the multiple air nozzles 333 of the multiple air curtain assemblies 33 collectively forms an air curtain. In this embodiment, there are four air curtain assemblies 33, two of which are disposed on either side of the tear detection drum 401 of the damage detection device 4, and the other two are disposed side by side at the bottom of the tear detection drum 401. It will be appreciated that the end cap 332 blocks the airflow within the air duct 331, ensuring the exhaust efficiency of the air nozzles 333 and preventing the majority of the airflow from being discharged from the end of the air duct 331 instead of the air nozzles 333, thereby affecting the formation of the air curtain.

[0055] It is understandable that the tear detection roller 401 has a transparent window for avoiding the direction of the camera of the detection component, and the same is true for the detection cleaning box 10 to ensure the detection effect of the damage detection device 4 on the belt conveyor 3.

[0056] like Figures 7 to 9As shown, the rotating cleaning unit 40 includes a driving component 41, a support frame group 42, a rotating scraper 43 and a belt transmission structure 44 with a large pulley side and a small pulley side. The damage detection device 4 and the rotating scraper 43 are both rotatably arranged side by side on the support frame group 42 through a bearing seat. The driving component 41 is driven and connected to the damage detection device 4 through the large pulley side of the belt transmission structure 44. The driving component 41 is rotationally connected to the rotating scraper 43 through the small pulley side of the belt transmission structure 44 to drive the damage detection device 4 and the rotating scraper 43 to rotate synchronously at different speeds. The rotating scraper 43 has a plurality of scraping ends spaced apart along its circumference, and any scraping end can be detachably tangent to the outer periphery of the damage detection device 4 to perform rotational scraping on the surface of the damage detection device 4.

[0057] In this embodiment, the support frame assembly 42 includes a first support frame assembly 421 for supporting and mounting the damage detection device 4, and a second support frame assembly 422 for supporting and mounting the rotating scraper 43. The damage detection device 4 is rotatably mounted on the first support frame assembly 421 via a first bearing block 81, and the rotating scraper 43 is rotatably mounted on the second support frame assembly 422 via a second bearing block 82. When the drive assembly 41 is activated, it directly drives the damage detection device 4 to rotate and simultaneously drives the rotating scraper 43 via the belt drive structure 44. Because the damage detection device 4 and the rotating scraper 43 are located on the large and small pulley sides, respectively, the damage detection device 4 rotates slower than the rotating scraper 43, thereby achieving synchronous differential drive of the damage detection device 4 and the rotating scraper 43. This allows the scraper end to scrape and clean different locations on the outer circumference of the tear detection roller 401 as it rotates. This arrangement facilitates more comprehensive scraping and cleaning of the surface of the tear detection roller 401, and because the scraping is performed in a rotating manner, the cleaning effect is also improved.

[0058] It should be noted that the scraping ends extend to both ends of the damage detection device 4 in the axial direction, so as to ensure the cleaning effect on the periphery of the tear detection roller 401.

[0059] Specifically, if Figure 9As shown, the drive assembly 41 includes a motor base 411, a drive motor 412 mounted on the motor base 411, and a coupling 413. The motor base 411 is positioned axially on one side of the inspection and cleaning box 10 and is connected to the rotating shaft of the inspection and cleaning box 10 via the coupling 413. The rotating scraper 43 includes a central shaft 431 and a cylindrical scraper 432 sleeved around the outer periphery of the central shaft 431. The cylindrical scraper 432 has multiple toothed plates distributed along its circumference and extending axially. Each of the toothed plates is curved in an arc shape along the direction of rotation of the rotating scraper 43. The side of the toothed plates facing away from the central shaft 431 is chamfered to form a scraping end. The ends of the central shaft 431 are rotatably mounted on the second support frame assembly 422 via a second bearing block 82. This arrangement facilitates the design of the drive assembly 41 and its rotational drive of the damage detection device 4 and the rotating scraper 43. Furthermore, the design of the rotating scraper 43 further enhances its cleaning effect on the surface of the tear detection roller 401. It is understandable that any scraper end can also be designed with a flexible brush or other structure according to actual conditions, and examples are not given here one by one.

[0060] like Figure 2 and Figure 3 As shown, the self-cleaning device 1 also includes a mounting frame 60 and a shock-absorbing assembly 70. The mounting frame 60 is fixedly arranged between the upper and lower belts of the belt conveyor 3. At least one set of damage detection device 4 and self-cleaning device 1 is arranged on the mounting frame 60. Any detection cleaning box 10 is arranged on the mounting frame 60 through multiple shock-absorbing assemblies 70.

[0061] This arrangement provides a buffer for the installation of the inspection and cleaning box 10 through the shock-absorbing assembly 70, ensuring the stability of the installation. Among them, there are four shock-absorbing assemblies 70 in this embodiment, and the four shock-absorbing assemblies 70 are arranged at the bottom of the four corners of the inspection and cleaning box 10. The shock-absorbing assemblies 70 are mainly composed of springs.

[0062] like Figure 2 and Figure 5 As shown, the dust collection unit 50 includes a dust box 51, a dust collection pipe 52, and a dust collection fan 53. The dust box 51 is arranged on one side of the detection and cleaning box 10 and is connected to the interior of the detection and cleaning box 10 through the dust collection pipe 52. The dust collection fan 53 is arranged on the dust collection pipe 52 to form an airflow from the interior of the detection and cleaning box 10 to the dust box 51. In this embodiment, two sets of damage detection devices 4 and self-cleaning devices 1 are arranged on the mounting frame 60. The dust box 51 is connected to both detection and cleaning boxes 10 through the dust collection pipe 52 to achieve simultaneous processing of debris and the like inside the two detection and cleaning boxes 10, thereby improving dust collection and discharge efficiency.

[0063] like Figures 2 to 5As shown, the bottom of the feeding chute 101 is tilted and has a feeding opening 1011 at the lowest point. The connecting position between the dust collecting pipe 52 and the detection and cleaning box 10 is located below the feeding opening 1011 .

[0064] This arrangement makes it easier for the dust and other pollutants in the detection and cleaning box 10 scraped off by the scraper 24 to fall into the blanking chute 101, thereby avoiding accumulation. At the same time, by designing the connection position between the dust collecting pipe 52 and the detection and cleaning box 10, while ensuring the centralized discharge effect of the original dust, turbid gas and other pollutants in the detection and cleaning box 10, the dust collecting pipe 52 is also convenient for the dust collecting pipe 52 to quickly suck the dust and other pollutants falling from the blanking port 1011, thereby improving the sewage discharge effect and efficiency.

[0065] Another embodiment of the present invention provides a self-cleaning method, which is applied to the above-mentioned belt conveyor system. The belt conveyor system also includes a control unit 2, and the control unit 2 is electrically connected to the damage detection device 4, the scraper dust removal unit 20, the air curtain dust removal unit 30, the rotary cleaning unit 40, and the dust collection unit 50. The self-cleaning method includes:

[0066] S1: When the detection clarity of the detection component of the damage detection device 4 decreases, the control unit 2 controls the self-cleaning device 1 to start;

[0067] S2: Control the scraper dust removal unit 20 to operate and use the scraper member 24 to sweep the debris on the top of the inspection and cleaning box 10 from the drop chute 101 into the interior of the inspection and cleaning box 10;

[0068] S3: Control the rotary cleaning unit 40 to operate and scrape and clean the outer periphery of the tear detection roller 401 of the damage detection device 4;

[0069] S4: Control the air curtain dust removal unit 30 to operate, forming an air curtain for dust removal and dust blocking around the tear detection roller 401 of the damage detection device 4;

[0070] S5: Control the dust collection unit 50 to operate and discharge the debris in the detection cleaning box 10;

[0071] The order of S2, S3 and S4 is adjustable, and / or at least one of S2, S3 and S4 is performed simultaneously with S5.

[0072] This arrangement realizes the self-cleaning of the damage detection device 4 and ensures the reliability of the belt conveyor system.

[0073] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0074] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0075] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0076] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0077] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0078] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A belt conveyor system, comprising a belt conveyor (3) and a damage detection device (4) arranged between an upper and lower belt of the belt conveyor (3), It is characterized in that The belt conveyor system further comprises a self-cleaning device (1) arranged corresponding to the damage detection device (4), the self-cleaning device (1) comprising a detection cleaning box (10), a scraper dust removal unit (20), an air curtain dust removal unit (30), a rotary cleaning unit (40) and a dust collecting unit (50), the damage detection device (4) being arranged in the detection cleaning box (10), the top of the detection cleaning box (10) having a material drop chute (101); the scraper dust removal unit (20) being arranged on the detection cleaning box (10) and comprising a scraper member (24) rotatably arranged on the top of the detection cleaning box (10), the scraper member (24) being used to rotate the detection cleaning box (10) 10) the debris on the top is swept into the detection cleaning box (10) from the blanking chute (101); the air curtain dust removal unit (30) and the rotating cleaning unit (40) are both arranged inside the detection cleaning box (10), the air curtain dust removal unit (30) has a plurality of exhaust ports, and the plurality of exhaust ports surround to form an air curtain for dust removal and dust suppression, and the rotating cleaning unit (40) is used to rotate and clean the surface of the damage detection device (4); the dust collecting unit (50) is arranged on one side of the detection cleaning box (10) and is connected to the inside of the detection cleaning box (10), and the dust collecting unit (50) is used to discharge the debris in the detection cleaning box (10) in a centralized manner.

2. The belt conveyor system according to claim 1, It is characterized in that The scraper dust removal unit (20) comprises a protective shell (21), a driving member (22) and a transmission assembly (23) arranged in the protective shell (21), the protective shell (21) being fixedly arranged on one side of the detection cleaning box (10), the material drop chute (101) being located on a side of the top of the detection cleaning box (10) close to the protective shell (21), and the transmission assembly (23) comprising a transmission gear (231) and a gear shaft (231) fixedly connected to the transmission gear (231). 2), one end of the gear shaft (232) protrudes from the top of the protective shell (21) and is connected to one end of the scraper member (24), the scraper member (24) is at least partially in contact with the top of the detection cleaning box (10), the transmission assembly (23) and the scraper member (24) are symmetrically arranged in at least two groups, the transmission gears (231) of at least two groups of the transmission assemblies (23) are meshed with each other, and the driving member (22) is drivingly connected to one of the transmission gears (231).

3. The belt conveyor system according to claim 2, It is characterized in that The scraper member (24) is a strip member extending in an arc shape and is chamfered on one side facing the top of the detection cleaning box (10). A plurality of enclosures (11) are arranged on the outer periphery of the top of the detection cleaning box (10), and the plurality of enclosures (11) are arranged on a side away from the protective shell (21) and the scraper member (24).

4. The belt conveyor system according to claim 2, It is characterized in that The wind curtain dust removal unit (30) comprises an air compressor (31), an air cylinder (32) and a plurality of wind curtain assemblies (33) connected in sequence, wherein the plurality of wind curtain assemblies (33) are distributed at least on both sides and the bottom of the damage detection device (4), wherein the wind curtain assembly (33) comprises an air duct (331), an end cover (332) and a plurality of air nozzles (333) facing the damage detection device (4), wherein one end of the air duct (331) is connected to the air cylinder (32), and the end cover (332) is arranged at the other end of the air duct (331), and the plurality of air nozzles (333) are arranged at intervals along the extension direction of the air duct (331) to form a plurality of exhaust ports, and the extension directions of the plurality of wind curtain assemblies (33) are all parallel to the axial direction of the damage detection device (4).

5. The belt conveyor system according to claim 1, It is characterized in that The rotary cleaning unit (40) comprises a driving assembly (41), a support frame group (42), a rotary scraper (43) and a belt transmission structure (44) having a large pulley side and a small pulley side. The damage detection device (4) and the rotary scraper (43) are both rotatably arranged side by side on the support frame group (42) via a bearing seat. The driving assembly (41) is rotatably connected to the damage detection device (4) via the large pulley side of the belt transmission structure (44). The driving assembly (41) is rotatably connected to the rotary scraper (43) via the small pulley side of the belt transmission structure (44) to drive the damage detection device (4) and the rotary scraper (43) to rotate synchronously at different speeds. The rotary scraper (43) has a plurality of scraping ends spaced apart along its circumference. Any one of the scraping ends can be detachably tangent to the outer periphery of the damage detection device (4) to perform rotary scraping on the surface of the damage detection device (4).

6. The belt conveyor system according to claim 5, It is characterized in that The driving assembly (41) comprises a motor base (411), a driving motor (412) arranged on the motor base (411), and a coupling (413); the motor base (411) is arranged on one side of the detection cleaning box (10) in the axial direction and is connected to the rotating shaft of the detection cleaning box (10) through the coupling (413); The rotating scraper (43) includes a central rotating shaft (431) and a cylindrical scraper (432) sleeved on the outer circumference of the central rotating shaft (431), and the cylindrical scraper (432) has a plurality of toothed plates distributed along its circumference and extending along its axial direction, and the plurality of toothed plates are all arc-shaped and bent along the rotation direction of the rotating scraper (43), and the side of the toothed plate away from the central rotating shaft (431) is chamfered to form the scraping end.

7. The belt conveyor system according to claim 1, It is characterized in that The dust collecting unit (50) comprises a dust collecting box (51), a dust collecting pipe (52) and a dust collecting fan (53); the dust collecting box (51) is arranged on one side of the detection cleaning box (10) and is connected to the interior of the detection cleaning box (10) through the dust collecting pipe (52); the dust collecting fan (53) is arranged on the dust collecting pipe (52) to form an air flow from the interior of the detection cleaning box (10) to the dust collecting box (51).

8. The belt conveyor system according to claim 7, It is characterized in that The bottom of the material dropping chute (101) is arranged at an inclination and has a material dropping opening (1011) at the lowest point, and the connecting position between the dust collecting pipe (52) and the detection cleaning box (10) is located below the material dropping opening (1011).

9. The belt conveyor system according to claim 1, It is characterized in that The self-cleaning device (1) further comprises a mounting frame (60) and a shock absorbing assembly (70); the mounting frame (60) is fixedly arranged between the upper and lower belts of the belt conveyor (3); at least one set of the damage detection device (4) and the self-cleaning device (1) is arranged on the mounting frame (60); and any one of the detection cleaning boxes (10) is arranged on the mounting frame (60) via a plurality of the shock absorbing assemblies (70).

10. A self-cleaning method, It is characterized in that The self-cleaning method is applied to the belt conveyor system according to any one of claims 1 to 9, the belt conveyor system further comprising a control unit (2), the control unit (2) being electrically connected to the damage detection device (4), the scraper dust removal unit (20), the air curtain dust removal unit (30), the rotary cleaning unit (40) and the dust collection unit (50), the self-cleaning method comprising: S1: When the damage detection device (4) detects a decrease in clarity, the control unit (2) controls the self-cleaning device (1) to start; S2: Controlling the scraper dust removal unit (20) to operate and sweeping the debris on the top of the detection cleaning box (10) from the material drop chute (101) into the interior of the detection cleaning box (10) through the scraper member (24); S3: controlling the rotation cleaning unit (40) to operate and scrape and clean the periphery of the damage detection device (4); S4: controlling the air curtain dust removal unit (30) to operate, so as to form an air curtain for dust removal and dust blocking around the damage detection device (4); S5: controlling the dust collecting unit (50) to operate so as to discharge the debris in the detection and cleaning box (10) in a centralized manner; The sequence of S2, S3 and S4 is adjustable, and / or at least one of S2, S3 and S4 is performed simultaneously with S5.

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