A material sticking cleaning device and method suitable for a belt conveyor

Abstract

A device and method for cleaning adhesive material from belt conveyors includes a calibration section, a blowing section, a material inspection section, a scraping section, and a discharge section. The calibration section, blowing section, material inspection section, and scraping section are sequentially arranged at the lower end of the belt conveyor, with the calibration section closest to the end of the belt conveyor. The discharge section is located directly below the other sections. The blowing section includes a first horizontal plate, a blowing mechanism, a first lifting component, and a second lifting component. The first and second lifting components are respectively located at both ends of the lower end face of the first horizontal plate, situated on opposite sides of the belt conveyor and grounded. The blowing mechanism is located on the upper end face of the first horizontal plate. This invention effectively cleans adhesive material from belt conveyors, reducing the labor intensity of workers and the load on the conveyor motor.

Description

Technical Field

[0001] This invention relates to a device and method for cleaning adhesive material on belt conveyors, and more particularly to a device and method for efficiently cleaning adhesive material on the lower belt of a belt conveyor, belonging to the technical field of belt adhesive material cleaning equipment. Background Technology

[0002] Belt conveyors are machines that use the endless motion of belts to transport materials. They offer advantages such as long transport distances, large transport capacity, low operating resistance, easy installation, low power consumption, and minimal wear. They are widely used in industry. In steel plants, belt conveyors are needed to transport large quantities of raw materials to the production workshops, ensuring smooth production processes. However, the materials transported by belt conveyors vary in properties; some materials have high moisture content, resulting in high viscosity. When transporting highly viscous materials, some inevitably adheres to the belt. If this adhered material is not cleaned promptly, it will remain on the belt. The increasing thickness of the material not only increases the load on the belt conveyor and reduces its carrying capacity, but also affects the belt's service life. Currently, cleaning the material adhering to belt conveyors is done using scrapers. Workers fix the scraper under the belt conveyor and scrape off the lower layer of belt through hard contact. This method not only severely wears down the belt and affects its service life, but also causes the scraper to shorten after wear, making it unable to effectively contact the belt for scraping in the later stages, thus affecting the scraping operation. Therefore, there is a need for a material removal device and method suitable for belt conveyors, which should be able to efficiently remove the material adhering to the belt, thereby ensuring the normal operation of the belt conveyor. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a material cleaning device and method suitable for belt conveyors. It can effectively clean the material stuck on the belt conveyor and transport the cleaned material to the next process simultaneously.

[0004] The problem described in this invention is solved by the following technical solution:

[0005] A material-adhesive cleaning device suitable for belt conveyors includes a calibration section, a blowing section, a material inspection section, a scraping section, and a discharge section. The calibration section, blowing section, material inspection section, and scraping section are arranged sequentially at the lower end of the belt conveyor, with the calibration section being closest to the end of the belt conveyor. The discharge section is located directly below the other sections. The blowing section includes a first horizontal plate, a blowing mechanism, a first lifting component, and a second lifting component. The first lifting component and the second lifting component are respectively provided at both ends of the lower end face of the first horizontal plate, and are located on both sides of the belt conveyor and are set on the ground. The blowing mechanism is located on the upper end face of the first horizontal plate.

[0006] The above-mentioned material removal device for belt conveyors includes a blowing mechanism comprising a long air pipe and duckbill nozzles. The long air pipe is disposed on the upper end face of a first horizontal plate, and the center line of the first horizontal plate is parallel to the center line of the long air pipe. An interface is provided at the end of the long air pipe, and the interface is connected to a high-pressure source through a hose. There are multiple duckbill nozzles, which are evenly arranged on the upper end face of the long air pipe along the center line direction. The duckbill nozzles are connected to the inner cavity of the long air pipe.

[0007] The aforementioned material-adhesive cleaning device for belt conveyors has the same structure for the first and second lifting components. The first lifting component includes a lifting plate, a guide cylinder, a first hydraulic cylinder, and a first infrared rangefinder. The guide cylinder is positioned on the ground, and the lifting plate is positioned at one end of the lower end face of the first horizontal plate, with the lifting plate inserted into a hole at the top of the guide cylinder. The housing of the first hydraulic cylinder is positioned on the side wall of the guide cylinder, and the end of its piston rod is connected to the bottom end face of the first horizontal plate. The first infrared rangefinder is positioned on the side wall of the guide cylinder, and its infrared emitting end points towards the first horizontal plate. The signal input end of the first hydraulic cylinder is connected to the signal output end of the CPU. The signal output end of the first infrared rangefinder is connected to the signal input end of the CPU.

[0008] The aforementioned material-adhesive cleaning device for belt conveyors includes a material inspection section comprising a second horizontal plate, a second infrared rangefinder, a cleaning mechanism, and a belt pressing mechanism. Two vertical plates are symmetrically arranged on both sides of the belt conveyor. The second horizontal plate is positioned between the two vertical plates. Multiple second infrared rangefinders are evenly arranged along the length of the second horizontal plate on its upper surface. The cleaning mechanism is located on the side wall of the second horizontal plate. The belt pressing mechanism is positioned between the two vertical plates, directly above the second horizontal plate, and is located between the upper and lower belt layers, contacting the upper surface of the lower belt. The signal output terminal of the second infrared rangefinder is connected to the signal input terminal of the CPU.

[0009] The aforementioned material-adhesive cleaning device for belt conveyors includes a cleaning mechanism comprising a pull-rope distance sensor, a motor, a lead screw, a lead screw nut, a transverse support plate, and a nozzle. The motor housing is located at one end of the lower surface of the second transverse plate, and the other end of the lower surface of the second transverse plate is provided with a support plate. One end of the lead screw is connected to the output shaft of the motor, and the other end of the lead screw is shaft-connected to the support plate. The lead screw nut is mounted on the lead screw. The transverse support plate is mounted on the lead screw nut, and the nozzle is mounted on the transverse support plate via a bracket. The nozzle is connected to a high-pressure air source via a long flexible hose. The pull-rope distance sensor is located at one end of the side wall of the second transverse plate, and the end of its pull rope is connected to the transverse support plate. The signal output terminal of the pull-rope distance sensor is connected to the signal input terminal of the CPU. The signal input terminal of the motor is connected to the signal output terminal of the CPU.

[0010] The above-mentioned material-adhesive cleaning device for belt conveyors includes a belt pressing mechanism comprising a U-shaped bracket and a pressure roller; the U-shaped bracket is disposed between two vertical plates, and the opening of the U-shaped bracket faces downward; the pressure roller is axially disposed at both ends of the inner wall of the U-shaped bracket; the pressure roller presses against the upper end face of the lower belt.

[0011] The aforementioned material-adhesive cleaning device for belt conveyors includes a scraping section comprising a third horizontal plate and a scraping mechanism. The two ends of the third horizontal plate are mounted on the ground via supports. The number of scraping mechanisms matches the number of second infrared rangefinders. The scraping mechanisms are evenly distributed along the length of the third horizontal plate, with each scraping mechanism's position corresponding to the position of each second infrared rangefinder. The top surface of the third horizontal plate is conical, with the tip pointing upwards. The scraping mechanism includes a second hydraulic cylinder, a lifting square cylinder, and a scraper. The housing of the second hydraulic cylinder is located on the lower end face of the third horizontal plate. The third horizontal plate has a square hole along a vertical direction, and the lifting square cylinder is inserted into this vertical square hole. The end of the piston rod of the second hydraulic cylinder is connected to the bottom end of the lifting square cylinder. The top end of the lifting square cylinder has a hole, and the scraper is inserted into this hole. A spring connects the bottom end of the scraper to the bottom end of the inner wall of the lifting square cylinder. The signal input terminal of the second hydraulic cylinder is connected to the signal output terminal of the CPU.

[0012] The aforementioned material-adhesive cleaning device for belt conveyors includes a calibration section comprising a guide plate, a sliding plate, a third infrared rangefinder, and clamping rollers. The guide plate is mounted on the ground on one side of the belt conveyor via a bracket. A vertical slide rail is provided on the end face of the guide plate near the belt conveyor, and the sliding plate is slidably mounted on the slide rail of the guide plate. Clamping rollers are respectively shafted at both ends of the end face of the sliding plate near the belt conveyor, and the lower belt is clamped in the middle by the upper and lower clamping rollers. A square hole is provided on the side wall of the guide plate, and a support rod is provided on the side wall of the sliding plate. The support rod passes through the square hole of the guide plate, and a rangefinder plate is provided at the end of the support rod, with the rangefinder plate contacting the end face of the guide plate away from the belt conveyor. A third infrared rangefinder is provided at the top of the end face of the guide plate away from the belt conveyor, and the infrared emitting end of the third infrared rangefinder points towards the rangefinder plate. The signal output end of the third infrared rangefinder is connected to the signal input end of the CPU.

[0013] The above-mentioned material cleaning device for belt conveyors includes a discharge section comprising a hopper and a chute. The hopper is mounted on the ground via a support and is located directly below the first, second, and third horizontal plates. The chute is mounted on the ground via a support, with one end of the chute located directly below the hopper outlet and the other end of the chute connected to the next process.

[0014] A method for cleaning sticky materials on belt conveyors includes the following steps:

[0015] Under normal conditions, the long air pipe is constantly supplied with high-pressure air, and the duckbill nozzle continuously blows air onto the lower belt. During operation, the lower belt will have slight vertical fluctuations. These fluctuations will cause the two clamping rollers to move synchronously, and the direction and amplitude of the fluctuations will be detected by the third infrared rangefinder. The first hydraulic cylinder will then be activated based on the magnitude of the lower belt's fluctuations, which will cause the duckbill nozzle to float synchronously. The first infrared rangefinder can determine the magnitude of the duckbill nozzle's fluctuations, thus ensuring that the duckbill nozzle maintains a constant distance from the lower belt, ensuring that the high-pressure airflow can fully blow air onto the lower belt.

[0016] Step 1: Due to the pressure of the pressure roller, the distance between the second infrared rangefinder and the lower belt directly above it is constant. In other words, the distance parameter detected by the second infrared rangefinder is constant under normal circumstances. Once the distance changes abruptly, it indicates that there is sticky material passing through. This means that there is sticky material on the lower belt directly above the second infrared rangefinder.

[0017] Step 2: The second hydraulic cylinder corresponding to the location of the second infrared rangefinder that detects abnormal distance is activated, pushing out the lifting cylinder. The scraper touches the lower belt to scrape off the material that has passed through. The presence of the spring ensures that the scraper touches the lower belt with appropriate force to avoid tearing the belt. After a period of time, the second hydraulic cylinder resets.

[0018] Step 3: The sticky material cleaned off by the high-pressure airflow and scraper falls into the hopper, then falls through the hopper's outlet onto the chute, and finally slides into the next process.

[0019] This invention positions the lower belt through a calibration section, ensuring that the duckbill nozzles in the purging section maintain a suitable distance from the lower belt, and ensuring that the high-pressure airflow can fully scour the lower belt. The inspection section checks the belt after passing through the purging section to see if the adhering material has been cleaned. If local adhering material is found to be uncleaned, the scraping section is activated to clean the adhering section in a targeted manner, minimizing wear on the belt. Finally, the cleaned-off adhering residue is transferred to the next process through the discharge section. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention in use.

[0021] Figure 2 This is a three-dimensional structural diagram of the present invention after the belt conveyor has been removed;

[0022] Figure 3 This is a partially enlarged structural diagram of invention A;

[0023] Figure 4 This is a partially enlarged structural schematic diagram of the present invention B.

[0024] The list of labels in the diagram is as follows: 1. First horizontal plate, 2. Long air pipe, 3. Duckbill nozzle, 4. Lifting plate, 5. Guide cylinder, 6. Second horizontal plate, 7. Second infrared rangefinder, 8. Vertical plate, 9. Pull-cord distance sensor, 10. Screw nut, 11. Horizontal support plate, 12. Nozzle, 13. U-shaped bracket, 14. Pressure roller, 15. Third horizontal plate, 16. Second hydraulic cylinder, 17. Lifting square cylinder, 18. Scraper, 19. Guide plate, 20. Slide plate, 21. Third infrared rangefinder, 22. Clamping roller, 23. Hopper, 24. Chute. Detailed Implementation

[0025] See Figure 1 , 2 3 and Figure 4This invention includes a calibration section, a purging section, a material inspection section, a scraping section, and a discharge section. These sections are sequentially arranged at the lower end of the belt conveyor, with the calibration section closest to the end of the conveyor. The belt is a complete loop; the section above the frame is called the upper belt, and the section below is called the lower belt. The upper belt transports materials, and the lower belt continues transporting materials after its return trip. The stage where material adheres to the belt below the frame is the lower belt. The discharge section is located directly below the other sections. The purging section includes a first horizontal plate 1, a purging mechanism, a first lifting component, and a second lifting component. The lifting component can raise and lower the purging mechanism, thereby adjusting the distance between it and the lower belt to ensure a suitable distance and sufficient high-pressure airflow to purify the belt. The lower end of the first horizontal plate 1 has a first lifting component and a second lifting component, located on opposite sides of the belt conveyor and positioned on the ground. The purging mechanism is located on the upper end of the first horizontal plate 1.

[0026] The purging mechanism includes a long air pipe 2 and a duckbill nozzle 3; the long air pipe 2 is located on the upper end face of the first horizontal plate 1, and the center line of the first horizontal plate 1 is parallel to the center line of the long air pipe 2; the end of the long air pipe 2 is provided with an interface, which is connected to a high-pressure source through a hose; the high-pressure air source transmits high-pressure air to the long air pipe 2, and then to the duckbill nozzle 3, and finally the high-pressure airflow is sprayed out to the lower belt; there are multiple duckbill nozzles 3, and they are evenly arranged on the upper end face of the long air pipe 2 along the center line direction; the duckbill nozzle 3 is connected to the inner cavity of the long air pipe 2.

[0027] The first and second lifting components have the same structure; the first and second lifting components cooperate to lift the first horizontal plate 1; the first lifting component includes a lifting plate 4, a guide cylinder 5, a first hydraulic cylinder, and a first infrared rangefinder; the guide cylinder 5 is set on the ground, the lifting plate 4 is set at one end of the lower end face of the first horizontal plate 1, and the lifting plate 4 is inserted into the hole at the top of the guide cylinder 5; the guide cylinder 5 provides guidance for the lifting of the lifting plate 4; the housing of the first hydraulic cylinder is set on the side wall of the guide cylinder 5, and the end of its piston rod is connected to the bottom end face of the first horizontal plate 1; the first hydraulic cylinder provides driving force for the lifting of the first horizontal plate 1; the first infrared rangefinder is set on the side wall of the guide cylinder 5, and its infrared emitting end points to the first horizontal plate 1; the first infrared rangefinder can monitor the position of the first horizontal plate 1 in real time, thereby knowing the position of the nozzle of the duckbill nozzle 3, and finally knowing the distance between the duckbill nozzle 3 and the lower belt; the signal input end of the first hydraulic cylinder is connected to the signal output end of the CPU; the signal output end of the first infrared rangefinder is connected to the signal input end of the CPU.

[0028] The material inspection section includes a second horizontal plate 6, a second infrared rangefinder 7, a material cleaning mechanism, and a belt pressing mechanism; two vertical plates 8 are symmetrically arranged on both sides of the belt conveyor; the second horizontal plate 6 is located between the two vertical plates 8; there are multiple second infrared rangefinders 7, which are evenly arranged on the upper surface of the second horizontal plate 6 along its length; the lower belt is divided into different sections along its transport direction, and each different second infrared rangefinder 7 is responsible for monitoring whether material is stuck on the belt in different sections. If a second infrared rangefinder 7 detects material sticking, the scraping mechanism corresponding to this second infrared rangefinder 7 is activated to clean the stuck section.

[0029] The material cleaning mechanism is located on the side wall of the second horizontal plate 6; the belt pressing mechanism is located between the two vertical plates 8 and directly above the second horizontal plate 6. The belt pressing mechanism is located between the upper belt and the lower belt and is in contact with the upper end face of the lower belt. The belt pressing mechanism is used to press the lower belt at a certain position to ensure that the distance between the second infrared rangefinder 7 and the lower belt is constant, thereby facilitating accurate detection of material adhesion. The signal output terminal of the second infrared rangefinder 7 is connected to the signal input terminal of the CPU.

[0030] The cleaning mechanism includes a pull-rope rangefinder 9, a motor, a lead screw, a lead screw nut 10, a transverse support plate 11, and a nozzle 12. The cleaning mechanism is used to clean any material that may be covering the second infrared rangefinder 7. The motor housing is located at one end of the lower surface of the second transverse plate 6, and a support plate is located at the other end of the lower surface of the second transverse plate 6. One end of the lead screw is connected to the output shaft of the motor, and the other end of the lead screw is connected to the support plate. The lead screw nut 10 is mounted on the lead screw. The motor drives the lead screw to rotate, and the rotating lead screw drives the lead screw nut to reciprocate along the axis of the lead screw. The transverse support plate 11 is mounted on the lead screw nut 10, and the nozzle 12 is mounted on the transverse support plate 11 via a bracket. The lead screw nut drives the transverse support plate 11 and the nozzle 12 to move laterally synchronously. The nozzle 12... 2. The system is connected to a high-pressure air source via a long flexible hose; the nozzle 12 is aligned with the second infrared rangefinder 7. During the lateral movement and air jetting of the nozzle 12, the second infrared rangefinder 7 is swept to clean any adhesive material that may be covering it, ensuring the accuracy of the detection by the second infrared rangefinder 7; the pull-rope type distance sensor 9 is located at one end of the side wall of the second horizontal plate 6, and the end of its pull rope is connected to the horizontal support plate 11; the pull-rope type distance sensor 9 can determine the position of the horizontal support plate 11, thereby enabling the lead screw nut to reciprocate on the lead screw, ensuring that the lead screw nut can return when it reaches the end of the lead screw; the signal output terminal of the pull-rope type distance sensor 9 is connected to the signal input terminal of the CPU; the signal input terminal of the motor is connected to the signal output terminal of the CPU.

[0031] The belt pressing mechanism includes a U-shaped bracket 13 and a pressure roller 14; the U-shaped bracket 13 is disposed between two vertical plates 8, and the opening of the U-shaped bracket 13 faces downward; the pressure roller 14 is axially connected to both ends of the inner wall of the U-shaped bracket 13; the pressure roller 14 presses against the upper end face of the lower belt; the pressure roller 14 presses the lower belt at a fixed spatial position, so that the lower belt at this position does not undulate; ensuring the detection accuracy of the second infrared rangefinder 7, and when the distance parameter changes abruptly, it can be determined that there is sticky material.

[0032] The scraping section includes a third horizontal plate 15 and a scraping mechanism; both ends of the third horizontal plate 15 are mounted on the ground via supports; the number of scraping mechanisms is the same as the number of second infrared rangefinders 7, and the scraping mechanisms are evenly arranged on the third horizontal plate 15 along its length, with each scraping mechanism corresponding to the position of each second infrared rangefinder 7; when a second infrared rangefinder 7 detects material adhering to the lower belt directly above it, the material is about to pass through the scraping mechanism, and the scraping mechanism corresponding to the second infrared rangefinder 7 that detected the material is activated to perform scraping processing; the top surface of the third horizontal plate 15 is conical with the tip pointing upwards; the conical shape is to prevent the cleaned-off material from accumulating on the upper surface of the third horizontal plate 15.

[0033] The scraping mechanism includes a second hydraulic cylinder 16, a lifting square cylinder 17, and a scraper 18. The housing of the second hydraulic cylinder 16 is located on the lower end face of the third horizontal plate 15. The third horizontal plate 15 has a square hole along the vertical direction, and the lifting square cylinder 17 is inserted into the vertical square hole of the third horizontal plate 15. The end of the piston rod of the second hydraulic cylinder 16 is connected to the bottom end of the lifting square cylinder 17. When the second hydraulic cylinder 16 is activated, it can push the lifting square cylinder 17 upward, and the scraper 18 inside the lifting square cylinder 17 presses against the lower belt to perform scraping. The top end of the lifting square cylinder 17 has a hole, and the scraper 18 is inserted into the hole at the top end of the lifting square cylinder 17. A spring is connected between the bottom end of the scraper 18 and the bottom end of the inner wall of the lifting square cylinder 17. The spring provides a buffer for the pressure between the scraper 18 and the belt, avoiding excessive hard contact pressure that could cause excessive wear on the belt. The signal input terminal of the second hydraulic cylinder 16 is connected to the signal output terminal of the CPU.

[0034] The calibration section includes a guide plate 19, a slide plate 20, a third infrared rangefinder 21, and clamping rollers 22. The calibration section monitors the position of the lower belt on the front side of the purging section, ensuring that the high-pressure airflow can purge the lower belt at an appropriate distance. The guide plate 19 is mounted on the ground on one side of the belt conveyor via a bracket. A vertical slide rail is provided on the end face of the guide plate 19 near the belt conveyor, and the slide plate 20 is slidably mounted on the slide rail of the guide plate 19. The slide plate 20 rises and falls synchronously with the undulation of the lower belt. Clamping rollers 22 are respectively shaft-connected to the vertical ends of the slide plate 20 near the belt conveyor, and the lower belt is clamped in the middle by the two clamping rollers. The two clamping rollers cause the lower belt to slide... Plate 20 can undulate synchronously with the lower belt portion it holds; the guide plate 19 has a square hole on its side wall, and a support rod is provided on the side wall of the slide plate 20. The support rod passes through the square hole of the guide plate 19, and a distance measuring plate is provided at the end of the support rod. The distance measuring plate contacts the end face of the guide plate 19 away from the belt conveyor; a third infrared distance measuring instrument 21 is provided at the top of the end face of the guide plate 19 away from the belt conveyor, and the infrared emitting end of the third infrared distance measuring instrument 21 points to the distance measuring plate; the third infrared distance measuring instrument 21 monitors the position change of the distance measuring plate in real time, and then calculates the undulation of the corresponding lower belt; the signal output end of the third infrared distance measuring instrument 21 is connected to the signal input end of the CPU.

[0035] The discharge section includes a hopper 23 and a chute 24. The hopper 23 is mounted on the ground by a support and is located directly below the first horizontal plate 1, the second horizontal plate 6, and the third horizontal plate 15. The chute 24 is mounted on the ground by a support, with one end of the chute 24 located directly below the discharge port of the hopper 23 and the other end of the chute 24 connected to the next process. The discharged material is transported to the next process after passing through the hopper 23 and the discharge chute 24.

[0036] The CPU module used in this invention is model 87C196KC.

[0037] The steps are as follows:

[0038] Under normal conditions, the long air pipe 2 is constantly supplied with high-pressure air, and the duckbill nozzle 3 continuously blows the lower belt. During operation, the lower belt will have a slight vertical fluctuation. This fluctuation will cause the two clamping rollers 22 to move synchronously, and the direction and amplitude of the fluctuation will be detected by the third infrared rangefinder 21. Then, based on the magnitude of the fluctuation of the lower belt, the first hydraulic cylinder is controlled to move, and the duckbill nozzle 3 is controlled to float synchronously. The first infrared rangefinder can know the magnitude of the fluctuation of the duckbill nozzle 3, thereby ensuring that the duckbill nozzle 3 can maintain a constant distance from the lower belt, and ensuring that the high-pressure airflow can fully blow the lower belt.

[0039] Step 1: Due to the pressure of the pressure roller 14, the distance between the second infrared rangefinder 7 and the lower belt directly above it is constant. That is to say, the distance parameter detected by the second infrared rangefinder is constant under normal circumstances. Once the distance changes abruptly, it indicates that there is sticky material passing through. There is sticky material on the lower belt directly above the second infrared rangefinder.

[0040] Step 2: The second hydraulic cylinder 16 corresponding to the position of the second infrared rangefinder 7 that detects abnormal distance is activated, pushing out the lifting square cylinder 17. The scraper 18 touches the lower belt to scrape off the material that has passed through. The presence of the spring allows the scraper 18 to touch the lower belt with appropriate force to avoid tearing the belt. After a period of time, the second hydraulic cylinder 16 resets.

[0041] Step 3: The sticky material cleaned off by the high-pressure airflow and scraper 18 falls into the hopper 23, and then falls through the outlet of the hopper 23 onto the chute 24, and finally slides into the next process.

Claims

1. A material-adhesive cleaning device suitable for belt conveyors, characterized in that: It includes a calibration section, a purging section, a material inspection section, a scraping section, and a discharge section; the calibration section, the purging section, the material inspection section, and the scraping section are arranged in sequence at the end of the belt conveyor below, with the calibration section being closest to the end of the belt conveyor; the discharge section is located directly below the other sections; the purging section includes a first horizontal plate (1), a purging mechanism, a first lifting component, and a second lifting component; The first horizontal plate (1) has a first lifting component and a second lifting component respectively installed at both ends of its lower end face. The first lifting component and the second lifting component are located on both sides of the belt conveyor and are installed on the ground. The blowing mechanism is installed on the upper end face of the first horizontal plate (1). The blowing mechanism includes a long air pipe (2) and a duckbill nozzle (3). There are multiple duckbill nozzles (3), which are evenly arranged on the upper end face of the long air pipe (2) along the center line direction. The duckbill nozzles (3) are connected to the inner cavity of the long air pipe (2). The first lifting component includes a lifting plate (4), a guide cylinder (5), a first hydraulic cylinder, and a first infrared rangefinder. The housing of the first hydraulic cylinder is provided with On the side wall of the guide cylinder (5), the end of its piston rod is connected to the bottom surface of the first horizontal plate (1); the first infrared rangefinder is set on the side wall of the guide cylinder (5), and its infrared emitting end points to the first horizontal plate (1); the material inspection part includes a second horizontal plate (6), a second infrared rangefinder (7), a material cleaning mechanism and a belt pressing mechanism; the number of the second infrared rangefinders (7) is multiple, and they are evenly arranged on the upper surface of the second horizontal plate (6) along the length direction of the second horizontal plate (6); the belt pressing mechanism includes a U-shaped bracket (13) and a pressure roller (14); the pressure roller (14) is axially connected to both ends of the inner wall of the U-shaped bracket (13); the scraping part includes a third horizontal plate. (15) and scraping mechanism; the two ends of the third horizontal plate (15) are set on the ground by brackets; the scraping mechanism includes a second hydraulic cylinder (16), a lifting square cylinder (17) and a scraper (18); the end of the piston rod of the second hydraulic cylinder (16) is connected to the bottom end of the lifting square cylinder (17); the top end of the lifting square cylinder (17) is provided with a hole, and the scraper (18) is inserted into the hole at the top end of the lifting square cylinder (17), and a spring is connected between the bottom end of the scraper (18) and the bottom end of the inner wall of the lifting square cylinder (17); the calibration part includes a guide plate (19), a slide plate (20), a third infrared rangefinder (21) and a clamping roller (22); the end of the slide plate (20) near the belt conveyor The vertical ends of the surface are respectively connected to clamping rollers (22), and the lower belt is clamped in the middle by the upper and lower clamping rollers; the top of the guide plate (19) away from the belt conveyor is provided with a third infrared rangefinder (21), and the infrared emitting end of the third infrared rangefinder (21) points to the rangefinder plate; the discharge part includes a hopper (23) and a chute (24); the hopper (23) is set on the ground by a bracket, and it is located directly below the first horizontal plate (1), the second horizontal plate (6) and the third horizontal plate (15); the chute (24) is set on the ground by a bracket, and one end of the chute (24) is located directly below the discharge port of the hopper (23), and the other end of the chute (24) is connected to the next process.

2. The material sticking cleaning device for belt conveyors according to claim 1, characterized in that: The long air tube (2) is located on the upper end face of the first horizontal plate (1), and the center line of the first horizontal plate (1) is parallel to the center line of the long air tube (2); the end of the long air tube (2) is provided with an interface, which is connected to the high pressure source through a hose.

3. The material sticking removal device for belt conveyors according to claim 2, characterized in that: The first lifting component and the second lifting component have the same structure; the guide cylinder (5) is set on the ground, the lifting plate (4) is set at one end of the lower end face of the first horizontal plate (1), and the lifting plate (4) is inserted into the hole at the top of the guide cylinder (5); the signal input end of the first hydraulic cylinder is connected to the signal output end of the CPU; the signal output end of the first infrared rangefinder is connected to the signal input end of the CPU.

4. The material sticking cleaning device for belt conveyors according to claim 3, characterized in that: The belt conveyor has two vertical plates (8) symmetrically arranged on both sides; the second horizontal plate (6) is arranged between the two vertical plates (8); the cleaning mechanism is arranged on the side wall of the second horizontal plate (6); the belt pressing mechanism is arranged between the two vertical plates (8) and is located directly above the second horizontal plate (6). The belt pressing mechanism is located between the upper belt and the lower belt and is in contact with the upper end face of the lower belt; the signal output terminal of the second infrared rangefinder (7) is connected to the signal input terminal of the CPU.

5. The material sticking removal device for belt conveyors according to claim 4, characterized in that: The material clearing mechanism includes a pull-rope distance sensor (9), a motor, a lead screw, a lead screw nut (10), a transverse support plate (11), and a nozzle (12). The motor housing is located at one end of the lower end face of the second transverse plate (6), and a support plate is located at the other end of the lower end face of the second transverse plate (6). One end of the lead screw is connected to the output shaft of the motor, and the other end of the lead screw is connected to the support plate. The lead screw nut (10) is located on the lead screw. The transverse support plate (11) is located on the lead screw nut (10), and the nozzle (12) is located on the transverse support plate (11) through a bracket. The nozzle (12) is connected to a high-pressure air source through a long hose. The pull-rope distance sensor (9) is located at one end of the side wall of the second transverse plate (6), and the end of its pull rope is connected to the transverse support plate (11). The signal output end of the pull-rope distance sensor (9) is connected to the signal input end of the CPU. The signal input end of the motor is connected to the signal output end of the CPU.

6. The material sticking removal device for belt conveyors according to claim 5, characterized in that: The U-shaped bracket (13) is positioned between two vertical plates (8), and the opening of the U-shaped bracket (13) faces downward; the pressure roller (14) presses against the upper end face of the lower belt.

7. The material sticking removal device for belt conveyors according to claim 6, characterized in that: The number of scraping mechanisms is the same as the number of second infrared rangefinders (7). The scraping mechanisms are evenly arranged on the third horizontal plate (15) along the length direction of the third horizontal plate (15), and the position of each scraping mechanism corresponds one-to-one with the position of each second infrared rangefinder (7). The top surface of the third horizontal plate (15) is conical, and the tip is facing upward. The housing of the second hydraulic cylinder (16) is located on the lower end surface of the third horizontal plate (15). The third horizontal plate (15) has a square hole along the vertical direction, and the lifting square cylinder (17) is inserted into the vertical square hole of the third horizontal plate (15). The signal input terminal of the second hydraulic cylinder (16) is connected to the signal output terminal of the CPU.

8. The material sticking cleaning device for belt conveyors according to claim 7, characterized in that: The guide plate (19) is mounted on the ground on one side of the belt conveyor via a bracket; a vertical slide rail is provided on the end face of the guide plate (19) near the belt conveyor, and the slide plate (20) is slidably mounted on the slide rail of the guide plate (19); a square hole is provided on the side wall of the guide plate (19), and a support rod is provided on the side wall of the slide plate (20). The support rod passes through the square hole of the guide plate (19), and a distance measuring plate is provided at the end of the support rod. The distance measuring plate contacts the end face of the guide plate (19) away from the belt conveyor; the signal output terminal of the third infrared distance meter (21) is connected to the signal input terminal of the CPU.

9. A method for cleaning adhesive residue from a belt conveyor according to any one of claims 1-8, characterized in that: Includes the following steps: Under normal conditions, the long air pipe (2) is constantly filled with high-pressure air, and the duckbill nozzle (3) continuously blows the lower belt. During the operation of the lower belt, its vertical position will fluctuate slightly. Its fluctuation will drive the two clamping rollers (22) to move synchronously, and then the direction and amplitude of its fluctuation will be detected by the third infrared rangefinder (21). Then, based on the size of the fluctuation of the lower belt, the first hydraulic cylinder is controlled to move, and the duckbill nozzle (3) is controlled to float synchronously. The first infrared rangefinder can know the size of the fluctuation of the duckbill nozzle (3), thereby ensuring that the duckbill nozzle (3) can maintain a constant distance from the lower belt, and ensuring that the high-pressure airflow can fully blow the lower belt. Step 1: Due to the pressure of the pressure roller (14), the distance between the second infrared rangefinder (7) and the lower belt directly above it is constant. That is to say, the distance parameter detected by the second infrared rangefinder is constant under normal circumstances. Once the distance changes abruptly, it indicates that there is sticky material passing through. There is sticky material on the lower belt directly above the second infrared rangefinder. Step 2: The second hydraulic cylinder (16) corresponding to the position of the second infrared rangefinder (7) that detects abnormal distance is activated, pushing out the lifting square cylinder (17). The scraper (18) touches the lower belt to scrape off the past sticky material. The presence of the spring allows the scraper (18) to touch the lower belt with appropriate force to avoid scratching the belt. After a period of time, the second hydraulic cylinder (16) resets. Step 3: The sticky material cleaned off by the high-pressure airflow and scraper (18) falls into the hopper (23), and then falls into the chute (24) through the outlet of the hopper (23), and finally slides into the next process.

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