Coal flow monitoring device

Abstract

The utility model discloses a coal flow monitoring device which comprises a conveying belt, a first induction piece, a second induction piece and a vibration assembly, and the conveying belt is used for conveying coal gangue; the plurality of first induction pieces are uniformly mounted on the inner side of a closed loop formed by the conveying belt, the plurality of second induction pieces are mounted in the closed loop, and the second induction pieces are used for generating induction signals when the downward moving stroke of the first induction pieces does not exceed a set stroke; the vibration assembly is arranged on the conveying belt and used for being started when at least part of the second induction pieces generate the induction signals. The coal flow monitoring device provided by the utility model can realize monitoring of coal gangue blockage, and can timely shake off coal gangue causing blockage when monitoring blockage, thereby avoiding the situation that manual inspection and observation are needed in the prior art, and avoiding the waste of human resources.

Description

Technical Field

[0001] This utility model relates to the technical field of coal gangue transportation, and in particular to a coal flow monitoring device. Background Technology

[0002] Currently, with the development of intelligent coal mining technology, the processes of coal mining, transportation, and storage have been continuously automated and intelligentized. However, during transportation, some large chunks of coal gangue in the coal flow can easily block the transportation channels, thus preventing the normal transportation of coal gangue.

[0003] To avoid prolonged blockage of coal gangue, existing technologies require workers to conduct real-time inspections and monitoring on the coal gangue transport channels. In the event of a blockage, manual intervention is necessary. However, this method is extremely wasteful of human resources, and there are certain safety risks associated with workers operating on the coal gangue transport channels. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a coal flow monitoring device that can monitor the obstruction of coal gangue and promptly shake off the obstructing coal gangue when obstruction is detected. This avoids the need for manual inspection and observation in the prior art, avoids the waste of human resources, and ensures safety.

[0005] The coal flow monitoring device according to this utility model embodiment includes:

[0006] A conveyor belt for conveying coal gangue;

[0007] The first sensing element is provided in multiple ways. The multiple first sensing elements are evenly installed on the inner side of the closed loop formed by the conveyor belt, and the first sensing element is used to move downward under the downward pressure of the conveyor belt.

[0008] The second sensor, having multiple components and installed inside the closed loop, generates a sensing signal when the corresponding first sensor's downward travel does not exceed a set travel distance.

[0009] A vibration assembly is disposed on the conveyor belt and movable along the conveying direction of the conveyor belt, and the vibration assembly is used to activate when at least a portion of the second sensor generates the sensing signal to shake off coal gangue that is causing jamming on the conveyor belt.

[0010] In some embodiments, a first laser sensor is further included. Multiple first laser sensors are arranged evenly on one side of the conveyor belt, and the arrangement direction of the multiple first laser sensors is parallel to the running direction of the conveyor belt. The first laser sensors are used to detect whether the coal gangue is being conveyed on the conveyor belt.

[0011] In some embodiments, a second laser sensor is further included. Multiple second laser sensors are provided and are located at the end of the conveyor belt in the conveying direction. The multiple second laser sensors are evenly arranged in a direction perpendicular to the ground. The second laser sensors are used to detect the height of the coal gangue.

[0012] In some embodiments, the vibration component includes:

[0013] A vibrator, which is disposed on the conveyor belt and is used to generate vibration;

[0014] A lifter is installed between the vibrator and the conveyor belt, and the lifter is used to push the vibrator upward so that the vibrator can contact the conveyor belt or coal gangue.

[0015] In some embodiments, the vibration component further includes:

[0016] An extension frame is connected to the conveyor belt, the extension frame is parallel to the transmission direction of the conveyor belt, and the length of the extension frame is the same as the length of the conveyor belt.

[0017] A roller is mounted on the extension frame and can move parallel to the extension direction of the extension frame. The hoist is connected to the roller, and the roller can drive the hoist and the vibrator to move in the opposite direction of the conveyor belt to the coal gangue that causes the jam.

[0018] In some embodiments, the thickness of the first sensing element is less than 1 cm.

[0019] In some embodiments, it also includes:

[0020] processor;

[0021] An audible and visual alarm is provided, which is connected to the processor. The processor controls the activation and deactivation of the audible and visual alarm based on the sensing signal.

[0022] In some embodiments, a display is also included, the display being connected to the processor, the display being used to display the location of the coal gangue causing the lag.

[0023] In some embodiments, a control button is also included. The control button is mounted on the display and connected to the processor. The control button sends a control signal to the processor, and the processor controls the vibration component and the audible and visual alarm to open and close based on the control signal.

[0024] In some embodiments, it also includes:

[0025] A rotation sensor is mounted on the conveyor belt and connected to the processor. The rotation sensor is used to detect the rotation data of the conveyor belt.

[0026] Beneficial effects: The coal flow monitoring device of this utility model can monitor the obstruction of coal gangue, and can shake off the obstructing coal gangue in a timely manner when obstruction is detected, avoiding the need for manual inspection and observation in the prior art, avoiding the waste of human resources, and ensuring safety. Attached Figure Description

[0027] Figure 1 This is a side view of the conveyor belt of a coal flow monitoring device according to this utility model;

[0028] Figure 2 This is a top view of the conveyor belt of a coal flow monitoring device according to this utility model;

[0029] Figure 3 This is a schematic diagram of the electrical component connections of a coal flow monitoring device according to this utility model.

[0030] Explanation of reference numerals in the attached drawings: 1. Conveyor belt; 2. Support frame; 3. Belt body; 4. Rotating shaft; 5. First sensor; 6. Second sensor; 7. Magnetic sensing circuit; 8. Vibration assembly; 9. Processor; 10. First laser sensor; 11. Second laser sensor; 12. Vibrator; 13. Lifter; 14. Extension frame; 15. Roller; 16. Audible and visual alarm; 17. Display; 18. Control buttons; 19. Rotation sensor. Detailed Implementation

[0031] The embodiments of the present invention are described in detail below, examples of which are shown 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.

[0032] like Figures 1 to 3 As shown, the coal flow monitoring device of this utility model embodiment includes a conveyor belt 1, a first sensing element 5, a second sensing element 6, a first laser sensor 10, a second laser sensor 11, a processor 9, etc.

[0033] The first sensor 5 and the second sensor 6 are used to detect the flow data of coal gangue, the first laser sensor 10 is used to detect the position data of the coal gangue that causes the blockage, and the second laser sensor 11 is used to detect the height data of the coal gangue.

[0034] First, the conveyor belt 1 is located below the coal gangue. The conveyor belt 1 is used to transport the coal gangue, that is, some of the coal gangue falls from the pile onto the conveyor belt 1. The conveyor belt 1 operates to gradually transport the piled coal gangue to the required position.

[0035] Specifically, the conveyor belt 1 can be a conventional conveyor belt used in coal gangue transportation. The conveyor belt 1 includes a support frame 2, a belt body 3, and a rotating shaft 4. The support frame 2 can be a cuboid frame with a hollow interior. The support frame 2 is used to install the rotating shaft 4 and support the belt body 3. The belt body 3 forms a closed loop around the rotating shaft 4. When the rotating shaft 4 rotates, the belt body 3 moves due to friction. There are at least two rotating shafts 4. When there are only two rotating shafts 4, they are installed at both ends of the support frame 2.

[0036] During the transportation of coal gangue, the rotating shaft 4 needs to rotate continuously, thereby driving the belt 3 to rotate. When the rotating shaft 4 stops rotating, the transportation work will stop, causing the transportation process to be suspended. Therefore, a rotation sensor 19 can be installed on the rotating shaft 4. The rotation sensor 19 can be a magnetic, laser, capacitive, or other types of speed sensor. The transmission sensor can also be an encoder, etc., so that the rotation data of the rotating shaft can be monitored through the rotation sensor.

[0037] Specifically, by using the rotation sensor 19, it is possible to detect whether the rotating shaft 4 is working properly. If there is any abnormality in the rotation data obtained by the rotation sensor 19, the staff can check and repair it in time, thereby effectively reducing the impact of the stagnation of the conveyor belt 1 on the mining progress.

[0038] During normal operation of the conveyor belt 1, multiple first sensing elements 5 can be evenly arranged on the belt body 3 of the conveyor belt 1. The multiple first sensing elements 5 are located inside the closed loop formed by the belt body 3. The multiple first sensing elements 5 can be set as flexible magnetic sheets. The multiple first sensing elements 5 can be tightly attached to the inside of the belt body 3 of the conveyor belt 1. Under the action of falling coal gangue, the conveyor belt 1 will sink downward, and the first sensing elements 5 will also move downward a certain distance.

[0039] Multiple second sensors 6 are simultaneously installed within the closed loop of the belt body 3. These multiple second sensors 6 can correspond to multiple first sensors 5 in the upper half of the belt body 3 in the vertical direction. All multiple second sensors 6 can be vertically installed inside the closed loop of the belt body 3. A magnetic sensing circuit 7 can be embedded in the second sensor 6. The magnetic sensor circuit can be a coil, etc. The second sensor 6 is used to detect the movement position of the first sensor 5 after the belt body 3 is pressed down by falling coal gangue, thereby obtaining coal gangue flow data.

[0040] Specifically, when coal gangue falls onto conveyor belt 1, the belt 1 is pressed down by gravitational potential energy, causing the belt body 3 to indent. This causes the first sensing element 5 to press down, and the magnetic sensing circuit 7 in the second sensing element 6 receives the position of the first sensing element 5 as it descends. If the downward movement of the first sensing element exceeds the set stroke, it is determined that coal gangue is flowing, indicating that coal gangue is falling and being transported, thus obtaining coal gangue flow data. Conversely, when there is no coal gangue on the conveyor belt due to a jam, the downward movement of the first sensing element will not reach the set stroke. In this case, the second sensing element will generate a sensing signal. The magnetic sensing circuit 7 needs to use highly sensitive circuit components to detect even minute changes in the position of the first sensing element 5.

[0041] In other embodiments, the first sensing element may be a soft magnetic material, and the second sensing element may be a Hall sensor, etc. Thus, a sensing signal can be generated by the positional changes of the soft magnetic material and the Hall sensor.

[0042] It should be noted that the generation of the sensing signals of the first and second sensors can be discontinuous. That is, as long as the distance between the first and second sensors, which rotate to be directly above the second sensor, does not reach the set travel distance, the second sensor can generate a sensing signal.

[0043] The thickness of the first sensor 5 needs to be less than 1 cm. Since the first sensor 5 is installed inside the conveyor belt 1 body 3 and is in close contact with the conveyor belt 1 body 3, the conveyor belt 1 body 3 needs to be rotated by the rotating shaft 4. If the first sensor 5 is too large, it will get stuck at the rotating shaft 4 and cannot rotate normally, thus causing the transportation work to be unable to proceed normally. The thickness of the first sensor 5 needs to be reduced so that when the belt body 3 carries the first sensor 5 to the rotating shaft 4, it can operate normally, reducing the impact of the setting of the first sensor on the bending and rotating position of the belt body.

[0044] The magnetic sensing circuit 7 is connected to the processor 9. After detecting the coal gangue flow data, the magnetic sensing circuit 7 transmits the coal gangue flow data to the processor 9. The processor 9 is connected to the vibration component 8. The processor 9 controls the vibration component 8 to open and close according to the coal gangue flow data. The vibration component 8 can be set on one side of the conveyor belt 1 and used to vibrate the coal gangue falling.

[0045] Specifically, if no coal gangue flow data is received within the predetermined time, that is, if a sensing signal is received, it may be that the coal gangue is stuck. In this case, the coal gangue cannot fall normally onto the conveyor belt 1. Therefore, the processor 9 controls the vibration component 8 to vibrate at the coal gangue, causing the coal gangue to fall, thereby realizing automated handling of coal gangue transportation, reducing the waste of human resources, and reducing the safety risks to personnel.

[0046] In other embodiments, the first sensor may not be located on the belt body. Multiple first sensors can be arranged below the belt body using additional supports or other structures. The first sensors can reciprocate in the vertical direction. Each first sensor is also equipped with an elastic element, so that after the first sensor releases the downward pressure from the belt body, it can automatically reset upwards under the action of the elastic element. In this case, multiple first sensors and multiple second sensors can be arranged one-to-one in the vertical direction.

[0047] Reference Figure 2 The vibration assembly 8 includes a vibrator 12 and a lifter 13. The vibrator 12 can be set on one side of the conveyor belt 1 to generate vibration. The lifter 13 is installed between the vibrator 12 and the conveyor belt 1 to push the vibrator 12 upward to contact the coal gangue.

[0048] Since the coal gangue is above the conveyor belt 1 and the vibrator 12 is located on one side of the conveyor belt 1, the lifter 13 is needed to move the vibrator 12 upward from the conveyor belt 1 so that the vibrator 12 can contact the coal gangue. After the vibrator 12 is activated, the coal gangue can be shaken off. This method effectively improves the vibration efficiency of the vibrator 12.

[0049] In addition, the vibration assembly 8 also includes an extension frame 14 and rollers 15. The extension frame 14 can be installed on one side of the support frame 2 as an extension of the support frame 2. The length of the extension frame 14 can be the same as the length of the support frame 2, and the extension frame 14 is parallel to the transmission direction of the conveyor belt 1. The rollers 15 are installed on the extension frame 14 and can move parallel to the extension frame 14. For example, the rollers can be driven by a drive motor to achieve rolling movement along the extension frame. The hoist 13 can be connected to the external frame of the rollers 15, etc. The external frame can cover the outer periphery of the rollers, and the external frame can remain stationary when the rollers rotate. For example, the external frame can be rotatably assembled with the axle of the rollers, while simultaneously being anti-rotating assembled with the extension frame, and the external frame can slide along the extension frame. Thus, the rollers 15 can drive the hoist 13 and the vibrator 12 to move in the opposite direction of the transmission of the conveyor belt 1 to the coal gangue that causes the jam.

[0050] As the coal gangue falls, it can cause the coal gangue in the direction of movement of the conveyor belt 1 to gradually recede backward. In order to ensure that the vibration component 8 can effectively contact the coal gangue, the vibration component 8 needs to be moved in the opposite direction of the conveyor belt 1, so that the vibration component 8 can contact the coal gangue, and thus the vibration component 8 can be effectively used normally.

[0051] Based on the movement of the vibrator 12, the coal flow monitoring device is also equipped with multiple first laser sensors 10. The multiple first laser sensors 10 are evenly arranged on one side of the conveyor belt 1. The arrangement direction of the multiple first laser sensors 10 is parallel to the running direction of the conveyor belt 1. The multiple first laser sensors 10 are used to detect the position of the coal gangue in the untransported state and obtain the position data of the coal gangue.

[0052] Specifically, when a blockage occurs at a certain location, there will be no coal gangue or only a small amount of coal gangue on the conveyor belt following that location in the transport direction. At this time, multiple first laser sensors following the blockage location will not detect the transport of coal gangue, while the first laser sensor corresponding to the blockage location will detect the transport of coal gangue. The location of the first laser sensor can be determined as the location where the blockage occurs.

[0053] The first laser sensor 10 is connected to the processor 9, which receives coal gangue position data and controls the opening and closing of the vibration component 8 based on this data. The first laser sensor 10 can detect in real time the location of the coal gangue in an untransported state. If no coal gangue flow data is received within a predetermined time, the sensor adjusts the movement of the roller 15 based on the coal gangue position data. This causes the roller 15 to drive the vibrator 12 to the location where the coal gangue is not being transported, allowing the vibration component 8 to contact the coal gangue and thus causing it to vibrate and fall.

[0054] Meanwhile, multiple second laser sensors 11 are set at the end of the conveyor belt 1 in the conveying direction. The multiple second laser sensors 11 are evenly arranged in a direction perpendicular to the ground. The second laser sensors 11 are used to detect the height of coal gangue and obtain coal gangue height data. The second laser sensors 11 are connected to the processor 9. The processor 9 receives the coal gangue height data and controls the opening and closing of the vibration component 8 based on the coal gangue height data.

[0055] The second laser sensor 11 is used to measure the height data of the coal gangue. When the coal gangue is high, a larger vibration force is required to make the coal gangue fall off. Based on the height data of the coal gangue, the processor 9 can adjust the vibration frequency of the vibration component 8 to improve the vibration efficiency.

[0056] Reference Figure 3 The processor 9 is connected to the first laser sensor 10, the second laser sensor 11, the magnetic sensing circuit 7, and the rotation sensor 19. The processor 9 is also connected to an audible and visual alarm 16. The processor 9 controls the activation and deactivation of the audible and visual alarm 16 based on coal gangue location data, coal gangue height data, coal gangue flow data, and rotation data. If any of these data is abnormal, the audible and visual alarm 16 will be triggered, alerting staff to check the situation promptly.

[0057] The processor 9 can also be connected to a display 17, which is used to display coal gangue location data, coal gangue height data, and coal gangue flow data. The display 17 is provided so that staff can view the coal gangue location data, coal gangue height data, and coal gangue flow data in a timely manner, allowing them to understand the specific information in the data promptly.

[0058] During the automatic processing, there may be situations such as inaccurate data detection or unexpected events, requiring manual control. Therefore, a control button 18 is also provided. The control button 18 can be installed on one side of the display 17. The control button 18 is connected to the processor 9 and sends control signals to the processor 9. The processor 9 controls the opening and closing of the vibration component 8 and the audible and visual alarm 16 based on the control signals, so that the staff can manually control the vibration component 8 and the conveyor belt 1, thereby ensuring the safety and controllability of the coal gangue transportation process.

[0059] The implementation principle of the coal flow monitoring device in this embodiment of the utility model is as follows:

[0060] By employing the cooperation of the first sensor 5 and the second sensor 6, the vibration assembly 8 does not activate when the coal gangue falls. When the coal gangue does not fall for a long time or becomes stuck, the processor 9 can control the vibration assembly 8 to activate based on the sensing signals generated by the first sensor 5 and the corresponding second sensor 6. Based on the position data of the stuck coal gangue detected by the first laser sensor 10, the processor 9 can drive the middle roller 15 of the vibration assembly 8 to move the lifter 13 to the stuck coal gangue. Then, the lifter 13 can push the vibrator 12 to move upward to contact the coal gangue. Based on the height data of the coal gangue detected by the second laser sensor 11, the processor 9 can adjust the vibration frequency of the vibrator 12, thereby realizing the automated handling of the coal gangue stuck problem and ensuring normal transportation.

[0061] At the same time, an audible and visual alarm 16 is set up to effectively remind staff to check for abnormal conditions in a timely manner. In addition, a display 17 is set up to allow staff to view all data in a timely manner, which facilitates staff to analyze the problems of abnormal data in a timely manner.

[0062] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A coal flow monitoring device, characterized in that, include: A conveyor belt for conveying coal gangue; The first sensing element is provided in multiple ways. The multiple first sensing elements are evenly installed on the inner side of the closed loop formed by the conveyor belt, and the first sensing element is used to move downward under the downward pressure of the conveyor belt. The second sensor, having multiple components and installed inside the closed loop, generates a sensing signal when the corresponding first sensor's downward travel does not exceed a set travel distance. A vibration assembly is disposed on the conveyor belt and movable along the conveyor belt's transport direction, and the vibration assembly is configured to be activated when at least a portion of the second sensor generates the sensing signal to dislodge coal gangue causing jamming on the conveyor belt.

2. The coal flow monitoring device according to claim 1, characterized in that, It also includes a first laser sensor, of which multiple first laser sensors are arranged evenly on one side of the conveyor belt, and the arrangement direction of the multiple first laser sensors is parallel to the running direction of the conveyor belt. The first laser sensor is used to detect whether the coal gangue is being transported on the conveyor belt.

3. The coal flow monitoring device according to claim 2, characterized in that, It also includes a second laser sensor, of which multiple second laser sensors are provided. The multiple second laser sensors are located at the end of the conveyor belt in the conveying direction and are evenly arranged in a direction perpendicular to the ground. The second laser sensors are used to detect the height of the coal gangue.

4. The coal flow monitoring device according to claim 2, characterized in that, The vibration component includes: A vibrator, which is disposed on the conveyor belt and is used to generate vibration; A lifter is installed between the vibrator and the conveyor belt, and the lifter is used to push the vibrator upward so that the vibrator can contact the conveyor belt or coal gangue.

5. The coal flow monitoring device according to claim 4, characterized in that, The vibration assembly also includes: An extension frame is connected to the conveyor belt, the extension frame is parallel to the transmission direction of the conveyor belt, and the length of the extension frame is the same as the length of the conveyor belt. A roller is mounted on the extension frame and can move parallel to the extension direction of the extension frame. The hoist is connected to the roller, and the roller can drive the hoist and the vibrator to move in the opposite direction of the conveyor belt to the coal gangue that causes the jam.

6. The coal flow monitoring device according to claim 2, characterized in that, The thickness of the first sensing element is less than 1 cm.

7. The coal flow monitoring device according to claim 2, characterized in that, Also includes: processor; An audible and visual alarm is provided, which is connected to the processor. The processor controls the activation and deactivation of the audible and visual alarm based on the sensing signal.

8. The coal flow monitoring device according to claim 7, characterized in that, It also includes a display connected to the processor, the display being used to show the location of the coal gangue causing the lag.

9. The coal flow monitoring device according to claim 8, characterized in that, It also includes control buttons, which are installed on the display and connected to the processor. The control buttons send control signals to the processor, and the processor controls the vibration component and the audible and visual alarm to open and close based on the control signals.

10. The coal flow monitoring device according to claim 7, characterized in that, Also includes: A rotation sensor is mounted on the conveyor belt and connected to the processor. The rotation sensor is used to detect the rotation data of the conveyor belt.

Images