Coal bunker unblocking system based on variable frequency sound waves

Abstract

The utility model provides a coal bunker unblocking system based on variable frequency sound waves, which comprises a coal feeder, a sound wave unblocking module, a gas driving module, a coal flow transmission module and a centralized control box, and is characterized in that a discharge port in the coal feeder is arranged below a coal bunker; a sound production end of a sound wave transmitter in the sound wave dredging module is fixed on the side surface of the discharge port, a sound receiving end is connected with a sound wave generator, and a driving motor is connected with a control end of the sound wave generator; a gas outlet of a pressure-stabilizing gas storage tank in the gas driving module is connected with a sound wave generator, a gas inlet is connected with a gas source, and an electromagnetic valve is arranged between the pressure-stabilizing gas storage tank and the gas source; a belt conveyor in the coal flow conveying module is arranged below the discharge port, and a laser sensor is suspended at a preset height above the belt conveyor; and the centralized control box is connected with the laser sensor, the driving motor, the electromagnetic valve and the pressure stabilizing gas storage tank. According to the coal bunker unblocking system, the high-energy sound waves with different frequencies are transmitted to the discharge port to generate vibration so as to unblock the blocked coal at the discharge port.

Description

Technical Field

[0001] The present application relates to the technical field of coal bunker blockage clearing, and in particular to a coal bunker blockage clearing system based on variable frequency sound waves. Background Art

[0002] As an energy material, coal is used in metallurgy, transportation, machinery and other industrial fields. In order to reduce the impact of coal on the environment during storage and transportation, coal can be stored in large coal storage bunkers. During the coal discharge process, the coal falls into the conveying channel from the discharge port below the coal storage bunker. Since coal will stick together during storage, forming a fragile stable structure, the discharge port of the coal bunker will be blocked when the coal is discharged, which makes it difficult to discharge coal from the coal bunker.

[0003] By injecting a large amount of water into the coal storage bunker to increase the deadweight of the coal and thus enhance the fluidity of the coal, the coal can be caused to collapse and the coal can be released from the bunker. However, injecting a large amount of water into the coal storage bunker can easily lead to changes in the quality of the coal and is not conducive to the conservation of water resources. Using a high-pressure water gun to impact the silted coal at the discharge port of the coal storage bunker can dredge the coal that is blocked at the discharge port, but using a high-pressure water gun is highly dangerous and there is a risk of coal leaking out of the bunker. Therefore, the above method cannot safely and efficiently dredge the discharge port of the coal storage bunker. Utility Model Content

[0004] The present application provides a coal bunker blockage clearing system based on variable frequency sound waves, which is used to improve the efficiency of coal discharge in the coal bunker and realize the automation of the coal bunker discharge port blockage clearing work.

[0005] The present application provides a coal bunker blockage clearing system based on variable frequency sound waves, comprising:

[0006] A coal feeder, the coal feeder comprises: a coal bunker and a discharge port, the discharge port being arranged below the coal bunker;

[0007] The sonic dredging module includes: a sonic propagator, a sonic generator and a driving motor. The sound-emitting end of the sonic propagator is fixed to the side of the discharge port, the sound-receiving end of the sonic propagator is connected to the sonic output end of the sonic generator, and the output end of the driving motor is connected to the control end of the sonic generator;

[0008] A gas drive module, the gas drive module includes: a pressure-stabilizing gas storage tank, a solenoid valve and a gas source, the gas outlet of the pressure-stabilizing gas storage tank is connected to the sound wave input end of the sound wave generator, the gas inlet of the pressure-stabilizing gas storage tank is connected to the gas source, and the solenoid valve is arranged between the gas inlet of the pressure-stabilizing gas storage tank and the gas source;

[0009] A coal flow transmission module, the coal flow transmission module comprises: a belt conveyor and a laser sensor, the belt conveyor is arranged below the discharge port, and the laser sensor is suspended at a preset height above the belt conveyor;

[0010] The centralized control box is connected with the laser sensor, the input end of the drive motor, the solenoid valve and the monitoring end of the pressure-stabilizing gas storage tank.

[0011] The embodiment of the present application uses a laser sensor to collect the coal flow height on the belt conveyor in real time, which can accurately reflect the situation of coal falling from the discharge port. When coal blockage occurs, the control box can timely monitor the drop in coal flow height and instruct the gas drive module and the acoustic wave dredging module to turn on to generate variable frequency acoustic waves. The vibration of the coal by the variable frequency acoustic waves destroys the blockage structure of the coal, so as to effectively dredge the blockage in the coal bunker and improve the efficiency of coal transmission. The control of the coal bunker clearing process by the control box can realize the automation of the clearing work and improve the safety of the staff.

[0012] In some embodiments, the coal bunker blockage clearing system based on variable frequency sound waves also includes: a pressure gauge, one end of the pressure gauge is connected to the monitoring end of the pressure-stabilizing gas storage tank, and the other end of the pressure gauge is connected to the control box.

[0013] The pressure gauge monitors the air pressure of the pressure-stabilizing gas storage tank and sends the air pressure data to the control box. The control box determines whether the solenoid valve is closed normally based on the pressure data to avoid damage to the drive motor and the acoustic wave generator due to the introduction of high-pressure gas when the drive motor and the acoustic wave generator are not started.

[0014] In some embodiments, the coal bunker blockage clearing system based on variable frequency sound waves further includes: a manual safety valve, which is arranged between the solenoid valve and the gas source.

[0015] When the coal bunker clearing system is in the closed state, closing the manual safety valve can prevent high-pressure gas from entering the sonic generator, avoiding damage to the drive motor and sonic generator due to high-pressure gas when the drive motor and sonic generator are not started, thus ensuring the safety of coal bunker clearing work.

[0016] In some embodiments, the gas source in the coal bunker blockage clearing system based on variable frequency sound waves is a high-pressure gas source.

[0017] The above-mentioned high-pressure gas source can form high-energy sound waves. The high-energy sound waves have higher energy and stronger amplitude, which can cause the coal at the discharge port to vibrate more strongly, thereby destroying the coal's fluffy structure and accelerating the fall of the coal flow.

[0018] In some embodiments, the coal bunker blockage clearing system based on variable frequency sound waves also includes: a gas cleaner, the gas cleaner includes an air inlet channel, a filter and an air outlet channel, the filter is arranged between the air inlet channel and the air outlet channel, the air inlet channel is connected to the air source, and the air outlet channel is connected to the air inlet of the pressure-stabilizing gas storage tank.

[0019] Before the gas enters the pressure-stabilizing gas storage tank from the gas source, the gas is filtered by a gas cleaner to prevent the impurities in the gas from contaminating the acoustic wave generator and extend the service life of the acoustic wave generator.

[0020] In some embodiments, the coal bunker blockage clearing system based on variable frequency sound waves further includes: a soundproof cover that wraps around the periphery of the sound wave propagator.

[0021] By wrapping the sound wave propagator with a soundproof cover, the secondary noise transmitted to the external environment can be reduced, providing protection for the safe operation of the staff.

[0022] In some embodiments, the sound wave propagator in the coal bunker blockage clearing system based on variable frequency sound waves is shaped like a trumpet, wherein the opening diameter of the sound wave propagator's sound-emitting end is larger than the opening diameter of the sound wave propagator's sound-receiving end.

[0023] The horn-shaped structure of the sound wave propagator can effectively transmit the energy of the sound wave. Among them, the sound receiving end with a smaller opening diameter is connected to the sound wave output end of the sound wave generator, which can reduce the loss of sound wave transmission; the sound emitting end with a larger opening diameter is fixedly connected to the side of the discharge port, which can expand the vibration area, thereby quickly destroying the blockage structure of the coal and accelerating the falling speed of the coal flow.

[0024] In some embodiments, the laser sensor in the coal bunker blockage clearing system based on variable frequency acoustic waves is suspended at the center of the belt conveyor.

[0025] Suspending the laser sensor at the center of the belt conveyor can more accurately measure the coal flow height, so as to promptly detect coal blockage at the discharge port and ensure the smooth clearing of the coal bunker.

[0026] It can be seen from the above technical scheme that the present application provides a coal bunker blockage clearing system based on variable frequency sound waves, comprising: a coal feeder, a sound wave dredging module, a gas drive module, a coal flow transmission module and a centralized control box, wherein the coal feeder comprises: a coal bunker and a discharge port, the discharge port being arranged below the coal bunker; the sound wave dredging module comprises: a sound wave propagator, a sound wave generator and a driving motor, the sound-emitting end of the sound wave propagator is fixed to the side of the discharge port, the sound-receiving end of the sound wave propagator is connected to the sound wave output end of the sound wave generator, the output end of the driving motor is connected to the sound wave generator, and the output end of the driving motor is connected to the sound wave generator. The control end is connected; the gas drive module includes: a pressure-stabilizing gas tank, a solenoid valve and a gas source, the gas outlet of the pressure-stabilizing gas tank is connected to the sound wave input end of the sound wave generator, the air inlet of the pressure-stabilizing gas tank is connected to the gas source, and the solenoid valve is arranged between the air inlet of the pressure-stabilizing gas tank and the gas source; the coal flow transmission module includes: a belt conveyor and a laser sensor, the belt conveyor is arranged below the discharge port, and the laser sensor is suspended at a preset height above the belt conveyor; the control box is connected to the laser sensor, the input end of the drive motor, the solenoid valve and the monitoring end of the pressure-stabilizing gas tank. The above-mentioned coal bunker clearing system transmits high-energy sound waves of different frequencies to the discharge port, causing the bulky coal at the discharge port to vibrate, thereby destroying the bulky structure of the coal, accelerating the fall of the coal flow, realizing the automation of coal bunker clearing work, and improving the efficiency of coal release in the coal bunker. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 This is an example diagram of the overall structure of the coal bunker blockage clearing system based on variable frequency sound waves described in an embodiment of the present application.

[0029] Illustration Description:

[0030] Among them, 1-sound wave generator; 2-drive motor; 3-sound wave propagator; 4-soundproof cover; 5-pressure-stabilizing gas storage tank; 6-pressure gauge; 7-gas source; 8-gas cleaner; 9-manual safety valve; 10-solenoid valve; 11-laser sensor; 12-roller; 13-control box; 14-discharge port; 15-coal bunker; 16-belt conveyor. DETAILED DESCRIPTION

[0031] In order to make the purpose and implementation method of the present application clearer, the exemplary implementation method of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0032] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0033] The terms "first", "second", "third", etc. in the specification and claims of this application and the above drawings are used to distinguish similar or similar objects or entities, and do not necessarily mean to limit a specific order or sequence, unless otherwise noted. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances.

[0034] The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to all the components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0035] As an energy material, coal is used in metallurgy, transportation, machinery and other industrial fields. In order to reduce the impact of coal on the environment during storage and transportation, coal-related enterprises have built large coal storage bunkers to store coal. During the coal discharge process, coal falls into the conveying channel from the discharge port below the coal storage bunker. Since coal will stick together during storage, forming a fragile stable structure, it will cause blockage at the coal bunker discharge port when discharging coal, which will make it difficult to discharge coal from the coal bunker.

[0036] By injecting a large amount of water into the coal storage bunker to increase the deadweight of the coal, and then enhance the fluidity of the coal, the coal can be caused to collapse and the coal can be released from the coal bunker. However, injecting a large amount of water into the coal storage bunker can easily lead to changes in the quality of the coal and is not conducive to the conservation of water resources. Using a high-pressure water gun to impact the silted coal at the discharge port of the coal storage bunker can dredge the coal that is blocked at the discharge port, but the use of a high-pressure water gun is highly dangerous and there is a risk of coal leaking out of the bunker, threatening the life safety of coal workers. Therefore, the above method cannot safely and efficiently dredge the discharge port of the coal storage bunker.

[0037] In order to improve the efficiency of coal discharge in the coal bunker and realize the automation of the unblocking work at the coal bunker discharge port, the embodiment of the present application provides a coal bunker unblocking system based on variable frequency sound waves. Figure 1 This is an example diagram of the overall structure of the coal bunker blockage clearing system based on variable frequency sound waves described in the embodiment of the present application. Figure 1 The coal bunker blockage clearing system based on variable frequency sound waves provided in this application is described in detail.

[0038] The embodiment of the present application provides a coal bunker blockage clearing system based on variable frequency sound waves, comprising: a coal feeder, a sound wave clearing module, a gas drive module, a coal flow transmission module and a centralized control box 13, wherein:

[0039] The coal feeder comprises: a coal bunker 15 and a discharge port 14, wherein the discharge port 14 is arranged below the coal bunker 15;

[0040] The sonic dredging module comprises: a sonic propagator 3, a sonic generator 1 and a driving motor 2, wherein the sound-emitting end of the sonic propagator 3 is fixed to the side of the discharge port 14, the sound-receiving end of the sonic propagator 3 is connected to the sonic output end of the sonic generator 1, and the output end of the driving motor 2 is connected to the control end of the sonic generator 1;

[0041] The gas driving module comprises: a pressure-stabilizing gas storage tank 5, a solenoid valve 10 and a gas source 7, the gas outlet of the pressure-stabilizing gas storage tank 5 is connected to the sound wave input end of the sound wave generator 1, the gas inlet of the pressure-stabilizing gas storage tank 5 is connected to the gas source 7, and the solenoid valve 10 is arranged between the gas inlet of the pressure-stabilizing gas storage tank 5 and the gas source 7;

[0042] The coal flow transmission module includes: a belt conveyor 16 and a laser sensor 11, wherein the belt conveyor 16 is arranged below the discharge port 14, and the laser sensor 11 is suspended at a preset height above the belt conveyor 16;

[0043] The centralized control box 13 is connected to the laser sensor 11 , the input end of the drive motor 2 , the solenoid valve 10 and the monitoring end of the pressure-stabilizing gas storage tank 5 .

[0044] It should be understood that due to the high humidity and high coal dust in the coal bunker, the coal particles may stick together when the coal is stored, which may cause poor coal flow or blockage. In the embodiment of the present application, the sound wave generator 1 cuts the gas, thereby causing the surrounding medium to fluctuate and form sound waves. Sound waves can be converted into energy and propagate in the air and solids. When the sound waves propagate to the side of the discharge port 14, the energy of the sound waves will be transmitted to the coal in the discharge port 14, causing the coal to vibrate, thereby destroying the coal blockage structure and accelerating the speed of the coal flow.

[0045] In some embodiments, coal is placed in the coal bunker 15 of the coal feeder, and the coal falls from the discharge port 14 to the belt conveyor 16. Based on the rotation of the roller 12, the coal on the belt conveyor 16 is transported to the target position. The laser sensor 11 is suspended at a preset height above the belt conveyor 16 to collect the coal flow height of the belt conveyor 16 in real time and send the coal flow height data to the control box 13. When the coal height data obtained by the control box 13 is less than the preset coal flow height threshold, the coal bunker clearing system determines that the discharge port 14 is blocked. At this time, the control box 13 controls the drive motor 2 to start, and sends current to the control end of the sound wave generator 1 through the output end of the drive motor 2, driving the sound wave generator 1 to move.

[0046] Next, the control box 13 controls the electromagnetic valve 10 to open, and the gas source 7 releases gas into the pressure-stabilizing gas storage tank 5. The stabilized gas enters the acoustic wave generator 1 from the pressure-stabilizing gas storage tank 5. The driving motor 2 drives the acoustic wave generator 1 to cut the gas, thereby generating fluctuations and forming sound waves. The sound waves propagate through the sound wave output end of the acoustic wave generator 1 to the sound receiving end of the sound wave propagator 3, and propagate through the sound wave propagator 3 to the side surface of the discharge port 14, causing the vibration of the coal, thereby destroying the bulky structure of the coal in the discharge port 14 and accelerating the fall of the coal flow.

[0047] Finally, the control box 13 determines whether the clearing work is completed according to the coal flow height collected in real time by the laser sensor 11. If the coal flow height is greater than or equal to the preset coal flow height threshold, the clearing work is determined to be completed, and the control box 13 controls the electromagnetic valve 10 to close, and controls the drive motor 2 to close; if the coal flow height is less than the preset coal flow height threshold, the clearing work is determined to be incomplete, and the control box 13 sends a frequency conversion instruction to the drive motor 2, and the drive motor 2 changes the movement frequency of the sound wave generator 1, and then changes the sound wave frequency, so as to vibrate the blocked coal at the discharge port 14 at different frequencies. Repeat the above steps of changing the sound wave frequency until the coal flow height collected by the laser sensor 11 is greater than or equal to the preset coal flow height threshold, and the clearing work is completed.

[0048] The embodiment of the present application uses the laser sensor 11 to collect the coal flow height on the belt conveyor 16 in real time, which can accurately reflect the situation of coal falling from the discharge port 14. When coal blockage occurs, the control box 13 can timely monitor the drop in coal flow height and instruct the gas drive module and the sound wave dredging module to start to generate variable frequency sound waves. The vibration of the coal by the variable frequency sound waves destroys the blockage structure of the coal, so as to effectively dredge the blockage of the coal bunker and improve the efficiency of coal transmission. In addition, the control of the coal bunker clearing process by the control box 13 can realize the automation of the clearing work and improve the safety of the staff.

[0049] In some embodiments, the gas source 7 in the coal bunker blockage clearing system based on variable frequency sound waves is a high-pressure gas source.

[0050] The high-pressure gas source is a gas source with a gas pressure in the range of 0.6MPa-0.8MPa. After being stabilized by the pressure-stabilizing gas storage tank 5, the high-pressure gas source enters the sound wave generator 1. The driving motor 2 drives the sound wave generator 1 to cut the gas, thereby generating fluctuations and forming high-energy sound waves. The high-energy sound waves have higher energy and stronger amplitude, which can cause the coal at the discharge port 14 to generate stronger vibrations, thereby destroying the blockage structure of the coal and accelerating the fall of the coal flow.

[0051] In some embodiments, the coal bunker blockage clearing system based on variable frequency sound waves further includes: a soundproof cover 4 , which wraps the periphery of the sound wave propagator 3 .

[0052] High-energy sound waves have high energy and strong amplitude, which have certain effects on the human body. If workers are exposed to high-energy sound waves for a long time, it will cause damage to the hearing and nervous system. Therefore, when using high-energy sound waves, safety protection measures need to be taken. By wrapping the soundproof cover 4 outside the sound wave propagator 3, the secondary noise can be reduced from entering the external environment, providing protection for the safe operation of the workers.

[0053] In some embodiments, the coal bunker blockage clearing system based on variable frequency sound waves also includes: a pressure gauge 6, one end of the pressure gauge 6 is connected to the monitoring end of the pressure-stabilizing gas storage tank 5, and the other end of the pressure gauge 6 is connected to the control box 13.

[0054] For example, the control box 13 controls the drive motor 2 to be turned off, and the electromagnetic valve 10 to be turned off. The control box 13 monitors the pressure in the pressure-stabilizing gas storage tank 5 based on the pressure gauge 6 to be within the preset safety pressure range, indicating that the coal bunker clearing system has been normally closed at this time.

[0055] For example, the control box 13 controls the drive motor 2 to be turned off, and the solenoid valve 10 to be turned off. The control box 13 monitors the pressure in the pressure-stabilizing gas storage tank 5 based on the pressure gauge 6, and the pressure is not within the preset safety pressure range, indicating that the solenoid valve 10 is not closed normally at this time, that is, the solenoid valve 10 is damaged, and the control box 13 issues an alarm message to prompt the staff to replace the solenoid valve 10 in time.

[0056] The pressure gauge 6 monitors the air pressure of the pressure-stabilizing gas storage tank 5 and sends the air pressure data to the control box 13. The control box 13 determines whether the solenoid valve 10 is normally closed based on the pressure data to avoid damage to the drive motor 2 and the sound wave generator 1 due to the introduction of high-pressure gas when the drive motor 2 and the sound wave generator 1 are not started.

[0057] In some embodiments, the coal bunker blockage clearing system based on variable frequency sound waves also includes: a manual safety valve 9 , which is arranged between the solenoid valve 10 and the gas source 7 .

[0058] When the coal bunker clearing system is in the closed state, closing the manual safety valve 9 can prevent high-pressure gas from entering the acoustic wave generator 1, and avoid the drive motor 2 and the acoustic wave generator 1 from being damaged by the high-pressure gas when they are not started, thus providing a guarantee for the safe operation of the coal bunker clearing work.

[0059] In some embodiments, the coal bunker blockage clearing system based on variable frequency sound waves also includes: a gas cleaner 8, the gas cleaner 8 includes an air inlet channel, a filter and an air outlet channel, the filter is arranged between the air inlet channel and the air outlet channel, the air inlet channel is connected to the air source 7, and the air outlet channel is connected to the air inlet of the pressure-stabilizing gas storage tank 5.

[0060] For example, the gas cleaner 8 is disposed between the gas source 7 and the pressure-stabilizing gas storage tank 5 , and the gas enters the gas cleaner 8 from the gas source 7 , is filtered by a filter in the gas cleaner 8 , and is then transported to the pressure-stabilizing gas storage tank 5 .

[0061] Before the gas enters the pressure-stabilizing gas storage tank 5 from the gas source 7 , the gas is filtered by the gas cleaner 8 , so as to prevent the impurities in the gas from contaminating the sound wave generator 1 , thereby extending the service life of the sound wave generator 1 .

[0062] In some embodiments, the sound wave propagator 3 in the coal bunker blockage clearing system based on variable frequency sound waves is shaped like a trumpet, wherein the opening diameter of the sound wave propagator 3 at the sound emitting end is larger than the opening diameter of the sound wave propagator 3 at the sound receiving end.

[0063] The horn-shaped structure of the sound wave propagator 3 can effectively transmit the energy of the sound wave. The sound receiving end with a smaller opening diameter is connected to the sound wave output end of the sound wave generator 1, which can reduce the loss of sound wave transmission; the sound emitting end with a larger opening diameter is fixedly connected to the side of the discharge port 14, which can expand the vibration area, thereby quickly destroying the blockage structure of the coal and accelerating the falling speed of the coal flow.

[0064] In some embodiments, the laser sensor 11 in the coal bunker blockage clearing system based on variable frequency sound waves is suspended at the center of the belt conveyor 16 .

[0065] In the process of coal flow falling, the conveyor belt above the belt conveyor 16 will shake and move. Suspending the laser sensor 11 at the center of the belt conveyor 16 can more accurately measure the height of the coal flow, so as to timely detect the coal blockage at the discharge port 14 and ensure the smooth clearing of the coal bunker.

[0066] It can be seen from the above technical scheme that the present application provides a coal bunker blockage clearing system based on variable frequency sound waves, comprising: a coal feeder, a sound wave dredging module, a gas drive module, a coal flow transmission module and a centralized control box, wherein the coal feeder comprises: a coal bunker and a discharge port, the discharge port being arranged below the coal bunker; the sound wave dredging module comprises: a sound wave propagator, a sound wave generator and a driving motor, the sound-emitting end of the sound wave propagator is fixed to the side of the discharge port, the sound-receiving end of the sound wave propagator is connected to the sound wave output end of the sound wave generator, the output end of the driving motor is connected to the sound wave generator, and the output end of the driving motor is connected to the sound wave generator. The control end is connected; the gas drive module includes: a pressure-stabilizing gas tank, a solenoid valve and a gas source, the gas outlet of the pressure-stabilizing gas tank is connected to the sound wave input end of the sound wave generator, the air inlet of the pressure-stabilizing gas tank is connected to the gas source, and the solenoid valve is arranged between the air inlet of the pressure-stabilizing gas tank and the gas source; the coal flow transmission module includes: a belt conveyor and a laser sensor, the belt conveyor is arranged below the discharge port, and the laser sensor is suspended at a preset height above the belt conveyor; the control box is connected to the laser sensor, the input end of the drive motor, the solenoid valve and the monitoring end of the pressure-stabilizing gas tank. The above-mentioned coal bunker clearing system transmits high-energy sound waves of different frequencies to the discharge port, causing the bulky coal at the discharge port to vibrate, thereby destroying the bulky structure of the coal, allowing the coal flow to fall normally, realizing the automation of coal bunker clearing work, and improving the efficiency of coal bunker coal release.

[0067] Similar parts between the embodiments provided in this application can be referenced to each other. The specific implementation methods provided above are only a few examples under the general concept of this application and do not constitute a limitation on the protection scope of this application. For those skilled in the art, any other implementation methods expanded based on the scheme of this application without creative work belong to the protection scope of this application.

Claims

1. A coal bunker blockage clearing system based on variable frequency sound waves, characterized in that: include: A coal feeder, the coal feeder comprising: a coal bunker and a discharge port, the discharge port being arranged below the coal bunker; A sonic dredging module, the sonic dredging module comprising: a sonic propagator, a sonic generator and a driving motor, the sound-emitting end of the sonic propagator being fixed to the side of the discharge port, the sound-receiving end of the sonic propagator being connected to the sonic output end of the sonic generator, and the output end of the driving motor being connected to the control end of the sonic generator; A gas driving module, the gas driving module comprising: a pressure-stabilizing gas storage tank, a solenoid valve and a gas source, the gas outlet of the pressure-stabilizing gas storage tank is connected to the sound wave input end of the sound wave generator, the gas inlet of the pressure-stabilizing gas storage tank is connected to the gas source, and the solenoid valve is arranged between the gas inlet of the pressure-stabilizing gas storage tank and the gas source; A coal flow transmission module, the coal flow transmission module comprising: a belt conveyor and a laser sensor, the belt conveyor is arranged below the discharge port, and the laser sensor is suspended at a preset height above the belt conveyor; A centralized control box is connected to the laser sensor, the input end of the drive motor, the solenoid valve and the monitoring end of the pressure-stabilizing gas storage tank.

2. The coal bunker blockage clearing system according to claim 1, characterized in that: Also includes: A pressure gauge, one end of which is connected to the monitoring end of the pressure-stabilizing gas storage tank, and the other end of which is connected to the centralized control box.

3. The coal bunker blockage clearing system according to claim 1, characterized in that: Also includes: A manual safety valve is arranged between the solenoid valve and the gas source.

4. The coal bunker blockage clearing system according to claim 1, characterized in that: The gas source is a high-pressure gas source.

5. The coal bunker blockage clearing system according to claim 1, characterized in that: Also includes: A gas cleaner, the gas cleaner comprises an air inlet channel, a filter and an air outlet channel, the filter is arranged between the air inlet channel and the air outlet channel, the air inlet channel is connected to the air source, and the air outlet channel is connected to the air inlet of the pressure-stabilizing gas storage tank.

6. The coal bunker blockage clearing system according to claim 1, characterized in that: Also includes: A soundproof enclosure wraps the periphery of the sound wave propagator.

7. The coal bunker blockage clearing system according to claim 1, characterized in that: The sound wave propagator is in the shape of a trumpet, wherein the opening diameter of the sound-emitting end of the sound wave propagator is larger than the opening diameter of the sound-receiving end of the sound wave propagator.

8. The coal bunker blockage clearing system according to claim 1, characterized in that: The laser sensor is suspended at the center of the belt conveyor.

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