CN113218465B - Detection and protection method for bin collapse - Google Patents
Detection and protection method for bin collapse Download PDFInfo
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- CN113218465B CN113218465B CN202110403383.7A CN202110403383A CN113218465B CN 113218465 B CN113218465 B CN 113218465B CN 202110403383 A CN202110403383 A CN 202110403383A CN 113218465 B CN113218465 B CN 113218465B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
Abstract
The invention discloses a detection and protection method for a bin collapse, which comprises the following steps: firstly, constructing a warehouse failure detection protection system; secondly, determining a coal bunker level descending speed threshold and storing the coal bunker level descending speed threshold in a memory; thirdly, detecting the descending state of the bin level in the raw coal bin in real time; fourthly, judging whether the raw coal bin is broken; fifthly, crushing and protecting. According to the invention, the bin position descending speed threshold of the coal bin is obtained through the bin diameter of the coal bin and the maximum coal feeding amount of the coal feeder, and the bin position data of the coal bin collected by a bin position instrument in unit time is used for obtaining the bin position real-time descending speed of the coal bin, so that the bin collapse is detected; meanwhile, a parabola for detecting water coal ejection by a coal detection module positioned on the front side of the coal feeder is used for detecting the burst bin, any phenomenon of the two occurs, namely the burst bin is judged to occur, double detection is performed, and the hydraulic inserting plate is automatically controlled to be closed to realize automatic protection of the burst bin.
Description
Technical Field
The invention belongs to the technical field of detection and protection of a broken bin, and particularly relates to a detection and protection method of the broken bin.
Background
The coal bunker is used for storing coal, but excessive water is mixed into the coal bunker at some time, and under the condition that a large amount of coal still exists in the coal bunker, water in the coal bunker and the coal flush from the coal bunker together, thereby forming a burst bunker, the water burst is similar to the debris flow burst, light people sprinkle tons of water coal even dozens of tons, heavy people submerge the tail of the machine, the equipment is damaged, and even more, casualties occur.
Disclosure of Invention
The invention aims to solve the technical problem that the defects in the prior art are overcome, and provides a method for detecting and protecting a silo burst, which is novel and reasonable in design, wherein a silo position descending speed threshold of a coal silo is obtained through the silo diameter of the coal silo and the maximum coal feeding amount of a coal feeder, and the real-time descending speed of the silo position of the coal silo is obtained by utilizing the silo position data of the coal silo collected by a silo position instrument in unit time, so that the silo burst is detected; the coal detecting module positioned on the front side of the coal feeder is used for detecting the coal amount surging condition to detect the burst bin, any phenomenon in the two occurs, namely the burst bin is judged, double detection is realized, the detection reliability is improved, and finally, automatic protection of the burst bin is realized by closing the automatic control hydraulic inserting plate, so that the coal feeder is convenient to popularize and use.
In order to solve the technical problems, the invention adopts the technical scheme that: step one, constructing a silo bursting detection and protection system, wherein the silo bursting detection and protection system comprises a detection unit for quickly detecting the occurrence of a silo bursting, a hydraulic plugboard for protecting the silo bursting and installed at a coal outlet end of a raw coal silo, and a controller connected with the detection unit and the hydraulic plugboard, the detection unit comprises a coal silo level instrument which is connected with the controller and installed at the top of the raw coal silo and a coal detection module arranged at the front side of a coal feeder, the controller is connected with a timer and a memory for storing a descending speed threshold value of the coal silo level, the coal feeder is controlled by the controller, a plugboard closing detector for detecting the closing position of the hydraulic plugboard is installed on a bracket of the hydraulic plugboard, and the signal output end of the plugboard closing detector is connected with the signal input end of the controller;
step two, determining a coal bunker level descending speed threshold and storing the coal bunker level descending speed threshold in a memory: according to the formula
Calculating a descending speed threshold v of a bin position of a coal bin, wherein the unit is m/S, H is the height of a raw coal bin, T is the total time of discharging coal under the condition of full bin in the raw coal bin, m is the total mass of the coal under the condition of full bin in the raw coal bin, Q is the maximum coal feeding amount of a coal feeder, rho is the coal density, and S is the internal cross-sectional area of the raw coal bin;
storing the bunker level descent speed threshold v in a memory;
step three, detecting the descending state of the bin level in the raw coal bin in real time:
the height of coal in a raw coal bunker is detected in real time by using a coal bunker level instrument, meanwhile, the time for acquiring data by using the coal bunker level instrument is recorded by using a timer, and the formula is adopted
Calculating the real-time speed v' of the reduction of the bin level of the raw coal bin, wherein t 1 And t 2 Recording the time of two consecutive data acquisitions of the bunker level indicator for a timer, H 1 Is t 1 Coal bunker level meter for real-time detection of coal height H in raw coal bunker 2 Is t 2 A coal bunker level meter is arranged at the moment to detect the height of coal in a raw coal bunker in real time;
meanwhile, a coal detection module is used for acquiring the parabola condition of water coal ejection at the coal unloading end of the coal feeder in real time, when the coal detection module does not detect a signal, the descending state of the bin position in the raw coal bin is normal, and when the coal detection module detects the signal, the descending state of the bin position in the raw coal bin is abnormal, and bin collapse occurs;
step four, judging whether the raw coal bin is broken:
when the reduction real-time speed v' of the bin level of the raw coal bin is greater than the reduction speed threshold v of the bin level of the coal bin;
or when the coal detection module detects a signal, indicating that the raw coal bin is broken, and executing the step five;
otherwise, circulating the step three;
step five, crushing protection: the controller controls the hydraulic plugboard to work, plugs the coal outlet end of the raw coal bin, detects whether the hydraulic plugboard is closed in place by using the plugboard closing detector, controls the pump station pump corresponding to the hydraulic plugboard to stop when the plugboard closing detector acquires a signal, and controls the coal feeder to stop immediately at the same time, so that the bin-bursting protection of the raw coal bin is realized.
The detection and protection method for the bin collapse is characterized by comprising the following steps: and the side wall of the raw coal bin is provided with a mounting bracket for mounting the coal detecting module.
The detection and protection method for the bin collapse is characterized by comprising the following steps: the coal detecting module is 0.3-3 m away from the coal unloading end of the coal feeder.
The detection and protection method for the bin collapse is characterized by comprising the following steps: the coal detecting module is a coal flow sensor or a travel switch.
The detection and protection method for the bin collapse is characterized by comprising the following steps: the board closing detector is a pressure sensor or a contact switch.
The detection and protection method for the bin collapse is characterized by comprising the following steps: the controller is a computer.
The detection and protection method for the bin collapse is characterized by comprising the following steps: the coal feeder is characterized in that the controller is a microcontroller, a control box is installed on the installing support, an electronic circuit board is arranged in the control box, the microcontroller, the timer and the memory are all integrated on the electronic circuit board, and the controller controls the coal feeder through a communication module and a belt transportation centralized control system.
The detection and protection method for the bin collapse is characterized by comprising the following steps: the communication module is a wireless communication module or a wired communication module;
the wired communication module is an RS485 wired communication module or an optical fiber communication module, the RS485 wired communication module is connected with the belt transportation centralized control system through an RS485 communication cable, and the optical fiber communication module is connected with the belt transportation centralized control system through an optical fiber cable;
the wireless communication module is a GSM wireless communication module, an LoRa wireless communication module or an NB-IoT wireless communication module.
The detection and protection method for the bin collapse is characterized by comprising the following steps: the controller is a microcontroller, and the controller sends a signal that the coal feeder is stopped immediately to the belt transportation centralized control system through the communication module, so that the silo-breaking protection of the raw coal bunker is realized.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the storage stores the bin level descending speed threshold of the coal bin, the bin level data of the coal bin collected by the bin level instrument in unit time is used for obtaining the bin level real-time descending speed of the coal bin, and when the bin level descending real-time speed of the raw coal bin is greater than the bin level descending speed threshold of the coal bin, the situation that the bin is broken is considered to occur at the moment; simultaneously, the coal detecting module is arranged on the front side of the coal feeder, the coal amount gushing condition of the coal unloading end of the coal feeder is collected in real time by the coal detecting module, when the coal detecting module does not detect a signal, the descending state of the bin level in the raw coal bin is normal, when the coal detecting module detects the signal, the descending state of the bin level in the raw coal bin is abnormal, the bin bursting occurs, any phenomenon in the bin and the bin bursting occurs, namely the bin bursting occurs, double detection is realized, the detection reliability is improved, and the coal detecting module is convenient to popularize and use.
2. According to the invention, the controller is arranged to receive the detection result of the detection unit in real time, and when the bin collapse occurs, the controller automatically controls the closing of the hydraulic inserting plate at the first time to realize the automatic protection of the bin collapse, so that the automatic protection device is reliable and stable and has a good using effect.
3. The method has simple steps, obtains the descending speed threshold of the coal bin position corresponding to each coal bin through the bin diameter of each coal bin and the maximum coal feeding amount of the coal feeder, and the descending speed threshold of the coal bunker position is stored in a storage, the coal bunker position instrument is used for detecting the height of coal in the raw coal bunker in real time, meanwhile, a timer is used for recording the data acquisition time of the coal bunker position instrument, the descending real-time speed of the raw coal bunker position is calculated, the coal quantity gushing condition of the coal discharging end of the coal feeder is acquired in real time by using a coal detection module, when the descending real-time speed of the raw coal bunker position is greater than the descending speed threshold value of the coal bunker position, or when the coal detecting module detects a signal, the controller controls the hydraulic inserting plate to work to plug the coal outlet end of the raw coal bin, meanwhile, the controller sends a signal of immediate shutdown of the coal feeder to the belt transportation centralized control system through the communication module, so that the bin collapse protection of the raw coal bin is realized, and the popularization and the use are convenient.
In conclusion, the invention has novel and reasonable design, the bin position descending speed threshold of the coal bin is obtained through the bin diameter of the coal bin and the maximum coal feeding amount of the coal feeder, and the bin position real-time descending speed of the coal bin is obtained by utilizing the bin position data of the coal bin collected by the bin position instrument of the coal bin in unit time, so that the bin bursting is detected; the coal detecting module positioned on the front side of the coal feeder is used for detecting the coal amount surging condition to detect the burst bin, any phenomenon in the two occurs, namely the burst bin is judged, double detection is realized, the detection reliability is improved, and finally, automatic protection of the burst bin is realized by closing the automatic control hydraulic inserting plate, so that the coal feeder is convenient to popularize and use.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
Fig. 1 is a schematic structural connection diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic block diagram of a circuit according to embodiment 1 of the present invention.
Fig. 3 is a schematic structural connection diagram according to embodiment 2 of the present invention.
Fig. 4 is a schematic block diagram of a circuit according to embodiment 2 of the present invention.
FIG. 5 is a block flow diagram of the method of the present invention.
Description of reference numerals:
1-raw coal bunker; 2-coal bunker position instrument; 3, hydraulic inserting plate;
4-a coal feeder; 5, mounting a bracket; 6, a coal detection module;
7-control box; 8, a controller; 9-a memory;
10-a timer; 11-a communication module;
12-a belt transportation centralized control system; 13-card closure detector.
Detailed Description
Example 1
As shown in fig. 1, 2 and 5, the method for detecting and protecting a crash bin according to the present invention includes the following steps:
step one, constructing a silo bursting detection protection system, wherein the silo bursting detection protection system is used for quickly detecting a detection unit generated by a silo bursting and a hydraulic inserting plate 3 which is used for protecting the silo bursting and is arranged at a coal outlet end of a raw coal silo 1, and a controller 8 which is connected with the detection unit and the hydraulic inserting plate 3, the detection unit comprises a coal silo position instrument 2 which is connected with the controller 8 and is arranged at the top of the raw coal silo 1 and a coal detection module 6 arranged at the front side of a coal feeder 4, the controller 8 is connected with a timer 10 and a memory 9 for storing a descending speed threshold value of the coal silo position, the coal feeder 4 is controlled by the controller 8, a bracket of the hydraulic inserting plate 3 is provided with an inserting plate closing detector 13 for detecting the closing of the hydraulic inserting plate 3, and a signal output end of the inserting plate closing detector 13 is connected with a signal input end of the controller 8;
step two, determining a coal bunker level descending speed threshold and storing the coal bunker level descending speed threshold in a memory: according to the formula
Calculating a descending speed threshold v of the bin level of the coal bin, wherein the unit is m/S, H is the height of the raw coal bin 1, T is the total time of discharging coal under the condition of full bin in the raw coal bin 1, m is the total mass of the coal under the condition of full bin in the raw coal bin 1, Q is the maximum coal feeding amount of a coal feeder 4, rho is the coal density, and S is the internal cross-sectional area of the raw coal bin 1;
storing the bunker level descent speed threshold v in the memory 9;
it should be noted that, the bunker position descending speed threshold corresponding to each bunker is obtained through the bunker diameter of each bunker and the maximum coal feeding amount of the coal feeder, and the bunker position descending speed threshold is stored in the memory, the size of the raw bunker 1 of each mine is different from the model of the coal feeder 4, actual calculation is performed under actual conditions, and the universality is good.
Step three, detecting the descending state of the bin level in the raw coal bin in real time:
the height of the coal in the raw coal bunker 1 is detected in real time by using the coal bunker level meter 2, and the timer 10 is used for recording the coalThe time of data acquisition of the bin level gauge 2 is according to the formula
Calculating the real-time speed v' of the reduction of the bin level of the raw coal bin, wherein t 1 And t 2 Records the time H of two consecutive data acquisitions of the bunker level 2 for the timer 10 1 Is t 1 The coal bunker level meter 2 is used for detecting the height H of coal in the raw coal bunker 1 in real time 2 Is t 2 The coal bunker level meter 2 is used for detecting the height of coal in the raw coal bunker 1 in real time at any time;
t 1 and t 2 The time interval of (a) is 1s to 15 s.
Meanwhile, the coal detection module 6 is used for acquiring the parabola condition of water coal ejection at the coal unloading end of the coal feeder 4 in real time, when the coal detection module 6 does not detect a signal, the descending state of the bin position in the raw coal bin is normal, and when the coal detection module 6 detects a signal, the descending state of the bin position in the raw coal bin is abnormal, and bin collapse occurs;
step four, judging whether the raw coal bin is broken:
when the reduction real-time speed v' of the bin level of the raw coal bin is greater than the reduction speed threshold v of the bin level of the coal bin;
or when the coal detection module 6 detects a signal, indicating that the raw coal bin is broken, and executing the step five;
otherwise, circulating the step three;
step five, crushing protection: the controller 8 controls the hydraulic inserting plate 3 to work, the coal outlet end of the raw coal bin 1 is plugged, the inserting plate closing detector 13 is used for detecting whether the hydraulic inserting plate 3 is closed in place, when the inserting plate closing detector 13 collects signals, the controller 8 controls a pump station pump corresponding to the hydraulic inserting plate 3 to stop, and meanwhile, the controller 8 controls the coal feeder 4 to stop immediately, so that the bin crushing protection of the raw coal bin 1 is realized.
In this embodiment, the controller 8 is a microcontroller, and the controller 8 sends a signal indicating that the coal feeder 4 is immediately stopped to the belt transportation centralized control system 12 through the communication module 11, so as to protect the raw coal bunker 1 from being broken.
It should be noted that, the storage 9 stores the bin level descending speed threshold of the coal bin, the real-time bin level descending speed of the coal bin is obtained by using the bin level data of the coal bin collected by the bin level meter 2 in unit time, and when the real-time speed of the descending of the bin level of the original coal bin is greater than the bin level descending speed threshold of the coal bin, the coal bin is considered to be broken at the moment; meanwhile, a coal detection module 6 is arranged on the front side of the coal feeder 4, the coal detection module 6 is used for collecting the coal amount gushing condition of the coal unloading end of the coal feeder 4 in real time, when the coal detection module 6 does not detect a signal, the descending state of the bin level in the raw coal bin is normal, when the coal detection module 6 detects a signal, the descending state of the bin level in the raw coal bin is abnormal, bin burst occurs, any phenomenon of the two occurs, namely, the occurrence of bin burst is judged, double detection is realized, and the detection reliability is improved; the detection result of the detection unit is received in real time through the controller 8, and when the crushing occurs, the controller 8 automatically controls the hydraulic inserting plate 3 to be closed at the first time to realize automatic protection of the crushing, and the crushing is reliable and stable.
In this embodiment, the side wall of the raw coal bunker 1 is provided with an installation support 5 for installing a coal detection module 6.
In the embodiment, the coal detecting module 6 is 0.3-3 m away from the coal unloading end of the coal feeder 4.
It should be noted that, the coal detection module 6 is 0.3 m-3 m away from the coal unloading end of the coal feeder 4, under normal conditions, the coal blocks transported by the coal feeder 4 are placed down from the coal unloading end of the coal feeder 4, the coal blocks placed down from the coal unloading end of the coal feeder 4 cannot contact the coal detection module 6, when the coal bunker is in a feeding state, the coal amount burst amount in the raw coal bunker 1 is increased, the speed is increased, the distance of a throwing point of coal is increased, the coal throwing point can contact the coal detection module 6 after the distance of the throwing point of coal is increased, and when the coal detection module 6 detects a signal, the situation that the bin position in the raw coal bunker is in a descending state is abnormal, and the feeding occurs.
In this embodiment, the coal detecting module 6 is a coal flow sensor or a travel switch.
In this embodiment, the board closing detector 13 is a pressure sensor or a contact switch.
In this embodiment, the controller 8 is a computer.
In practical implementation, the controller 8 adopts a computer to directly receive signals of the coal bunker level meter 2, the coal detection module 6 and the insertion plate closing detector 13 and directly control the hydraulic insertion plate 3 and the coal feeder 4 to work.
Example 2
As shown in fig. 3 and 4, the embodiment is different from embodiment 1 in that the controller 8 is a microcontroller, the mounting bracket 5 is provided with a control box 7, an electronic circuit board is arranged in the control box 7, the microcontroller, the timer 10 and the memory 9 are all integrated on the electronic circuit board, and the controller 8 controls the coal feeder 4 through a communication module 11 and a belt transportation centralized control system 12.
In this embodiment, the communication module 11 is a wireless communication module or a wired communication module.
In this embodiment, the wired communication module is an RS485 wired communication module or an optical fiber communication module, the RS485 wired communication module is connected to the belt transportation centralized control system 12 through an RS485 communication cable, and the optical fiber communication module is connected to the belt transportation centralized control system 12 through an optical fiber cable;
the wireless communication module is a GSM wireless communication module, an LoRa wireless communication module or an NB-IoT wireless communication module.
In practical implementation, as the raw coal bunker 1 is far away from the centralized control center corresponding to the belt transportation centralized control system 12, a control box 7 can be installed on each raw coal bunker 1, a microcontroller is utilized to quickly receive signals of the coal bunker level instrument 2, the coal detection module 6 and the insertion plate closing detector 13 and directly control the hydraulic insertion plate 3 to work, and the coal feeder 4 is controlled by the belt transportation centralized control system 12.
When the invention is used, the method has simple steps, the descending speed threshold of the coal bunker position corresponding to each coal bunker is obtained through the bunker diameter of each coal bunker and the maximum coal feeding quantity of the coal feeder, and the descending speed threshold of the coal bunker position is stored in a storage, the coal bunker position instrument is used for detecting the height of coal in the raw coal bunker in real time, meanwhile, a timer is used for recording the data acquisition time of the coal bunker position instrument, the descending real-time speed of the raw coal bunker position is calculated, the coal quantity gushing condition of the coal discharging end of the coal feeder is acquired in real time by using a coal detection module, when the descending real-time speed of the raw coal bunker position is greater than the descending speed threshold value of the coal bunker position, or when the coal detecting module detects a signal, the controller controls the hydraulic inserting plate to work to plug the coal outlet end of the raw coal bin, meanwhile, the controller sends a signal of immediate shutdown of the coal feeder to the belt transportation centralized control system through the communication module, so that the silo-breaking protection of the raw coal silo is realized.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (9)
1. A detection and protection method for a bin collapse is characterized by comprising the following steps: the method comprises the following steps:
step one, constructing a silo-bursting detection and protection system, wherein the silo-bursting detection and protection system comprises a detection unit for rapidly detecting the occurrence of silo bursting and a hydraulic inserting plate (3) for protecting the silo bursting and arranged at the coal outlet end of a raw coal silo (1), and a controller (8) connected with the detection unit and the hydraulic inserting plate (3), the detection unit comprises a coal bunker level meter (2) which is connected with a controller (8) and is arranged at the top of a raw coal bunker (1) and a coal detection module (6) arranged at the front side of a coal feeder (4), the controller (8) is connected with a timer (10) and a memory (9) for storing the descending speed threshold value of the coal bunker level, the coal feeder (4) is controlled by the controller (8), a support of a hydraulic inserting plate (3) is provided with an inserting plate closing detector (13) for detecting the closing of the hydraulic inserting plate (3) in place, and the signal output end of the inserting plate closing detector (13) is connected with the signal input end of the controller (8);
step two, determining a coal bunker level descending speed threshold and storing the coal bunker level descending speed threshold in a memory: according to the formula
Calculating a descending speed threshold v of a coal bunker position, wherein the unit is m/S, H is the height of a raw coal bunker (1), T is the total time of discharging coal under the condition of full bunker in the raw coal bunker (1), m is the total mass of the coal under the condition of full bunker in the raw coal bunker (1), Q is the maximum coal feeding amount of a coal feeder (4), rho is the coal density, and S is the internal cross-sectional area of the raw coal bunker (1);
storing the bunker level descent speed threshold v in a memory (9);
step three, detecting the descending state of the bin level in the raw coal bin in real time:
the height of coal in the raw coal bunker (1) is detected in real time by using the coal bunker level instrument (2), meanwhile, the time for acquiring data by using the coal bunker level instrument (2) is recorded by using a timer (10), and the formula is adopted
Calculating the real-time speed v' of the reduction of the bin level of the raw coal bin, wherein t 1 And t 2 Records the time H of the coal bunker position instrument (2) for collecting data twice continuously for the timer (10) 1 Is t 1 The coal bunker level meter (2) is used for detecting the height H of coal in the raw coal bunker (1) in real time 2 Is t 2 The coal bunker level meter (2) is used for detecting the height of coal in the raw coal bunker (1) in real time;
meanwhile, the parabola condition of water coal ejection at the coal unloading end of the coal feeder (4) is acquired in real time by using the coal detection module (6), when the coal detection module (6) does not detect a signal, the descending state of the bin position in the raw coal bin is normal, and when the coal detection module (6) detects the signal, the descending state of the bin position in the raw coal bin is abnormal, and bin collapse occurs;
step four, judging whether the raw coal bin is broken:
when the reduction real-time speed v' of the position of the raw coal bunker is greater than the reduction speed threshold v of the position of the coal bunker;
or when the coal detecting module (6) detects a signal, indicating that the raw coal bin is broken, and executing the fifth step;
otherwise, circulating the step three;
step five, crushing protection: the controller (8) controls the hydraulic inserting plate (3) to work, the coal outlet end of the raw coal bin (1) is plugged, the inserting plate closing detector (13) is used for detecting whether the hydraulic inserting plate (3) is closed in place, when the inserting plate closing detector (13) collects signals, the controller (8) controls a pump station pump corresponding to the hydraulic inserting plate (3) to stop, meanwhile, the controller (8) controls the coal feeder (4) to stop immediately, and the bin bursting protection of the raw coal bin (1) is achieved.
2. A method for detecting and protecting a bin crash according to claim 1, wherein: and the side wall of the raw coal bunker (1) is provided with a mounting bracket (5) for mounting a coal detecting module (6).
3. A method for detecting and protecting a bin crash according to claim 2, wherein: the coal detecting module (6) is 0.3-3 m away from the coal unloading end of the coal feeder (4).
4. A method for detecting and protecting a bin crash according to claim 1, wherein: the coal detecting module (6) is a coal flow sensor or a travel switch.
5. A method for detecting and protecting a bin crash according to claim 1, wherein: the board closing detector (13) is a pressure sensor or a contact switch.
6. A method for detecting and protecting a bin crash according to claim 1, wherein: the controller (8) is a computer.
7. A method for detecting and protecting a bin crash according to claim 2, wherein: the coal feeder is characterized in that the controller (8) is a microcontroller, a control box (7) is installed on the installation support (5), an electronic circuit board is arranged in the control box (7), the microcontroller, the timer (10) and the memory (9) are all integrated on the electronic circuit board, and the controller (8) controls the coal feeder (4) through a communication module (11) and a belt transportation centralized control system (12).
8. A method for detecting and protecting a crash in accordance with claim 7, wherein: the communication module (11) is a wireless communication module or a wired communication module;
the wired communication module is an RS485 wired communication module or an optical fiber communication module, the RS485 wired communication module is connected with the belt transportation centralized control system (12) through an RS485 communication cable, and the optical fiber communication module is connected with the belt transportation centralized control system (12) through an optical fiber cable;
the wireless communication module is a GSM wireless communication module, an LoRa wireless communication module or an NB-IoT wireless communication module.
9. A method for detecting and protecting a bin crash according to claim 1, wherein: the controller (8) is a microcontroller, and the controller (8) sends a signal for immediately stopping the coal feeder (4) to the belt transportation centralized control system (12) through the communication module (11), so that the bunker-crushing protection of the raw coal bunker (1) is realized.
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