CN112177962B - Safe operation method, system and equipment for mine main ventilator - Google Patents
Safe operation method, system and equipment for mine main ventilator Download PDFInfo
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- CN112177962B CN112177962B CN202011058203.8A CN202011058203A CN112177962B CN 112177962 B CN112177962 B CN 112177962B CN 202011058203 A CN202011058203 A CN 202011058203A CN 112177962 B CN112177962 B CN 112177962B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 48
- 230000008859 change Effects 0.000 claims description 16
- 230000009471 action Effects 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 description 10
- 230000008901 benefit Effects 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention discloses a safe operation method, a system and equipment of a mine main ventilator, which comprises the steps of judging a triggering condition of a blade zeroing instruction after monitoring that a fan blade actuator receives the blade zeroing instruction, triggering an alarm program when judging that the triggering condition of the blade zeroing instruction is inconsistent with a preset normal blade zeroing condition, starting the position monitoring of a mine main ventilator blade and sending a video signal shot by monitoring to a designated video receiving terminal. The blade zero-resetting instruction is added for judging and carrying out video monitoring, when the blade is abnormally reset to zero, an alarm is given, field personnel are reminded to restore the blade angle in time, the normal ventilation of a mine is ensured, the situation that when a power supply of a control system is powered off or the manual and automatic modes of a blade actuator are switched, no person finds that the mine is in a windless state for a long time, a huge mine safety production accident situation is caused is avoided, the missing protection in the control system is effectively compensated, and the safe and stable operation of a mine main ventilator is ensured.
Description
Technical Field
The invention belongs to the technical field of coal mine production equipment control, and particularly relates to a safe operation method, a safe operation system and safe operation equipment of a main mine ventilator.
Background
The existing coal mine main ventilator mostly uses an axial flow fan with adjustable movable blades, and each air shaft is generally provided with two fans, one fan is normally operated and the other fan is standby so as to ensure the air supply safety of the mine. In the running process of the fan, if the air door is closed due to faults, the 'surge' fault of the fan can be caused, the ventilation of a mine is influenced, and meanwhile, the fan is seriously damaged; meanwhile, the movable blade adjustable fan has the risk that the blade angle is suddenly reset to zero, and if nobody finds the movable blade adjustable fan in time, the mine is stopped for a long time, and the movable blade adjustable fan falls to the serious safety accident.
Accordingly, further developments and improvements in the art are desired.
Disclosure of Invention
Aiming at various defects in the prior art, in order to ensure the safe operation of the main mine ventilator and avoid mine safety accidents caused by abnormal return-to-zero of blades, the safe operation method, the safe operation system and the safe operation equipment of the main mine ventilator are provided. The invention provides the following technical scheme:
a safe operation method of a main ventilator of a mine comprises the following steps: and when the triggering condition of the blade zeroing instruction is judged to be inconsistent with the normal zeroing condition of the preset blade, triggering an alarm program, starting the position monitoring of the main mine ventilator blade and sending a video signal shot by the monitoring to an appointed video receiving terminal.
Further, the preset normal blade zeroing condition is as follows: and receiving a fan work switching instruction before monitoring the blade zeroing instruction.
Further, after monitoring that the fan blade actuator receives the blade return-to-zero instruction, judging that the fan work switching instruction is not received before, and triggering an alarm program.
Further, after monitoring that the fan blade actuator receives the blade return-to-zero instruction, the fan work switching instruction is received before judgment, the blade angle change condition of the fan loaded by the fan work switching instruction in the preset first time period is further monitored, and if the blade angle change is zero in the preset first time period, an alarm program is started.
Further, after monitoring that the fan blade actuator receives a blade zero return instruction, a fan work switching instruction is received before judgment, a timer is started to start timing, a comparator is started to judge the blade angle change condition, and when the timer is counted to preset a first time period, the comparator judges that the blade angle change is always zero, an alarm program is started.
Further, the preset triggering condition of the blade zeroing instruction comprises closing of an access door.
Further, when the closing action of the access door is monitored, a timer is started to start timing, and when the closing action of the access door is continuously detected within a preset second time period counted by the timer, a blade return-to-zero instruction is sent to the fan blade actuator.
Further, the preset first time period is 3 minutes, and the preset second time period is 2 seconds.
A mine main ventilator safe operation system comprising:
the monitoring module is used for monitoring the fan blade actuator to receive the blade zeroing instruction;
the judging module is used for judging the triggering condition of the blade zeroing instruction;
and the processing module is used for triggering an alarm program according to the judgment result of the judgment module, starting the position monitoring of the main mine ventilator blade and sending the video signal shot by the monitoring to the appointed video receiving terminal.
An electronic device comprising at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores a program of instructions executable by the at least one processor to enable the at least one processor to perform a method of operating a main mine ventilator safely.
Has the advantages that:
by adding triggering condition judgment of a blade zeroing instruction, starting position monitoring of the blades of the mine main ventilator and sending a video signal to be monitored to a designated video receiving terminal, when the blades are abnormally zeroed, an abnormal blade zeroing monitoring picture alarm and a buzzer alarm are output to remind field personnel of timely restoring the blade angle so as to ensure normal ventilation of the mine, and the condition that when a power supply of a control system is powered off or the manual and automatic modes of a blade actuator are switched, the operation angle signal of the blade actuator is not given by the system, the blades are automatically zeroed at the moment, but the system defaults that a fan normally operates, if no person finds in time, the mine can be in a windless state for a long time to cause huge mine safety production accidents is avoided, so that missing protection in the control system is effectively compensated, and safe and stable operation of the mine main ventilator is ensured, the social significance and economic benefit are immeasurable.
Drawings
FIG. 1 is a main flow chart of a safe operation method of a main mine ventilator according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of a main mine ventilator safe operation system in an embodiment of the invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the following description of the technical solutions of the present invention with reference to the accompanying drawings of the present invention is made clearly and completely, and other similar embodiments obtained by a person of ordinary skill in the art without any creative effort based on the embodiments in the present application shall fall within the protection scope of the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are directions with reference to the drawings only, and thus, the directional terms are used for illustrating the present invention and not for limiting the present invention.
Example 1
As shown in fig. 1, a method for safely operating a main ventilator in a mine comprises the following steps:
s100, monitoring that a fan blade actuator receives a blade zeroing instruction;
s200, judging a trigger condition of a blade zeroing instruction, and determining whether an alarm program is started;
s300, determining whether to start the position monitoring of the main mine ventilator blades according to whether the alarm program is started.
Specifically, after the fan blade actuator is monitored to receive a blade zeroing instruction, the triggering condition of the blade zeroing instruction is judged, and when the triggering condition of the blade zeroing instruction is judged to be inconsistent with the preset normal blade zeroing condition, an alarm program is triggered, the position monitoring of the main mine fan blade is started, and a video signal shot by monitoring is sent to an appointed video receiving terminal. Because the new air door replaces the old air door to participate in system control, the old air door is used as the access door and does not participate in control any more, so that an access door closing blade zeroing instruction is added, and when the access door is closed due to faults, the blade is zeroed by a given blade actuator instruction so as to protect the fan from being damaged. Additionally starting the position monitoring of the main mine ventilator blades and sending the video signals shot by monitoring to a designated video receiving terminal, when the blade is abnormally reset to zero, a monitoring picture alarm of 'abnormal reset to zero' of the blade and a buzzer alarm are output to remind field personnel to restore the blade angle in time, so that the ventilation of a mine is ensured to be normal, the condition that when a power supply source of a control system is powered off or the manual and automatic modes of a blade actuator are switched, the blade is automatically reset to zero when the system does not give an operating angle signal of the blade actuator is avoided, but the system defaults that the fan runs normally, if no one finds that the mine is in a windless state for a long time, the condition of huge mine safety production accidents is caused, therefore, by implementing the scheme, the missing protection in the control system is effectively compensated, the safe and stable operation of the main mine ventilator is ensured, and the social significance and the economic benefit are immeasurable.
Further, the preset normal blade zeroing condition is as follows: and receiving a fan work switching instruction before monitoring a blade zero returning instruction. When normal fan work switches the instruction and sends, the access door is closed to make the blade return to zero, normally return to zero by the mistake for preventing the blade and think non-normally return to zero, consequently need increase one step and judge the instruction, judge whether there is the fan work that receives before the blade returns to zero and switch the instruction, be used for getting rid of the monitoring and predetermine the condition that the blade normally returns to zero.
Further, after monitoring that the fan blade actuator receives the blade return-to-zero instruction, judging that the fan work switching instruction is not received before, and triggering an alarm program. After the fan blade actuator is monitored to receive the blade return-to-zero instruction, if the fan work switching instruction is not received before, the situation that the blade returns to zero abnormally is indicated, further inspection and judgment are needed, and therefore an alarm program is triggered.
Further, after monitoring that the fan blade actuator receives the blade return-to-zero instruction, the fan work switching instruction is received before judgment, the blade angle change condition of the fan loaded by the fan work switching instruction in the preset first time period is further monitored, and if the blade angle change is zero in the preset first time period, an alarm program is started. The method is mainly used for preventing false alarm when the fan is normally switched, accurately measuring and calculating the time for the fan to be normally switched of the east-west air shaft, adding a comparator in a control program to judge that the angle of a blade is zero, increasing the condition of abnormal loading and running of other machines, and outputting an alarm of abnormal zero return of the blade after the time delay.
Further, after the fan blade actuator is monitored to receive the blade return-to-zero instruction, the fan work switching instruction is received before judgment, the timer is started to start timing, meanwhile, the comparator is started to judge the blade angle change condition, and when the timer is counted to preset a first time period, the comparator judges that the blade angle change is always zero, the alarm program is started.
Further, the preset triggering condition for the blade zeroing command includes closing of a service door. The access door is closed because the original and old air doors are transformed, the old air doors are used as the access doors and do not participate in control any more, when the fan normally operates, if the access doors are suddenly closed due to faults, the 'surge' fault of the fan can be caused, the ventilation of a mine is influenced, meanwhile, the fan is seriously damaged, and therefore, the access doors also need to be brought into an abnormal condition, and an alarm program also needs to be started for prompting.
Further, when the closing action of the access door is monitored, a timer is started to start timing, and when the closing action of the access door is continuously detected within a second time period counted by the timer, a blade return-to-zero instruction is sent to a fan blade actuator. The preset second time period is a delay time period, the main purpose is to prevent the false zero return of the blade caused by the misoperation of the relay, and the trigger protection is generated after the access door is closed and the second time period is delayed by adding a delay switch-on timer.
Further, the preset first time period is 3 minutes, and the preset second time period is 2 seconds. The time period is an optimal time period obtained through a long-term test, is a conclusion obtained according to the operation of the main ventilation control system of the east-west air shaft of the actual coal mine, is determined according to the normal fan switching time of the east-west air shaft of the mine, and is determined according to the operation time length of the switch relay of the access door.
Example 2
As shown in fig. 2, a system for safely operating a main ventilation fan of a mine comprises:
the monitoring module 100 is used for monitoring that the fan blade actuator receives a blade zeroing instruction;
the judging module 200 is used for judging the triggering condition of the blade zeroing instruction;
and the processing module 300 is used for triggering an alarm program according to the judgment result of the judgment module, starting the position monitoring of the main mine ventilator blade and sending the video signal shot by the monitoring to the appointed video receiving terminal.
Specifically, after the fan blade actuator is monitored to receive a blade zeroing instruction, the triggering condition of the blade zeroing instruction is judged, and when the triggering condition of the blade zeroing instruction is judged to be inconsistent with the preset normal blade zeroing condition, an alarm program is triggered, the position monitoring of the main mine fan blade is started, and a video signal shot by monitoring is sent to an appointed video receiving terminal. Because the new air door replaces the old air door to participate in system control, the old air door is used as the access door and does not participate in control any more, so that an access door closing blade zeroing instruction is added, and when the access door is closed due to faults, the blade is zeroed by a given blade actuator instruction so as to protect the fan from being damaged. The position monitoring of the main mine ventilator blades is started and the video signals shot by the monitoring are sent to a designated video receiving terminal, when the blade is abnormally reset to zero, a monitoring picture alarm of 'abnormal reset to zero' of the blade and a buzzer alarm are output to remind field personnel to restore the blade angle in time, so that the ventilation of a mine is ensured to be normal, the condition that when a power supply source of a control system is powered off or the manual and automatic modes of a blade actuator are switched, the blade is automatically reset to zero when the system does not give an operating angle signal of the blade actuator is avoided, but the system defaults that the fan runs normally, if no one finds that the mine is in a windless state for a long time, the condition of huge mine safety production accidents is caused, therefore, by implementing the scheme, the missing protection in the control system is effectively compensated, the safe and stable operation of the main mine ventilator is ensured, and the social significance and the economic benefit are immeasurable.
Further, the preset normal blade zeroing condition is as follows: and receiving a fan work switching instruction before monitoring a blade zero returning instruction. When normal fan work switches the instruction and sends, the access door is closed to make the blade return to zero, normally return to zero by the mistake for preventing the blade and think non-normally return to zero, consequently need increase one step and judge the instruction, judge whether there is the fan work that receives before the blade returns to zero and switch the instruction, be used for getting rid of the monitoring and predetermine the condition that the blade normally returns to zero.
Further, after monitoring that the fan blade actuator receives the blade return-to-zero instruction, judging that the fan work switching instruction is not received before, and triggering an alarm program. After the fan blade actuator is monitored to receive the blade zero returning instruction, if the fan work switching instruction is not received before, the situation that the blade is abnormally returned to zero at the moment is indicated, further inspection and judgment are needed, and therefore an alarm program is triggered.
Further, after monitoring that the fan blade actuator receives the blade return-to-zero instruction, the fan work switching instruction is received before judgment, the blade angle change condition of the fan loaded by the fan work switching instruction in the preset first time period is further monitored, and if the blade angle change is zero in the preset first time period, an alarm program is started. The method is mainly used for preventing false alarm when the fan is normally switched, accurately measuring and calculating the time for the fan to be normally switched of the east-west air shaft, adding a comparator in a control program to judge that the angle of a blade is zero, increasing the condition of abnormal loading and running of other machines, and outputting an alarm of abnormal zero return of the blade after the time delay.
Further, after monitoring that the fan blade actuator receives a blade zero return instruction, a fan work switching instruction is received before judgment, a timer is started to start timing, a comparator is started to judge the blade angle change condition, and when the timer is counted to preset a first time period, the comparator judges that the blade angle change is always zero, an alarm program is started.
Further, the preset triggering condition of the blade zeroing instruction comprises closing of an access door. The access door is closed because the former air door is reformed transform and come, and old air door no longer participates in the control as the access door use, and when the fan normally operated, if the access door was closed suddenly because of the fault, can cause fan "surge" trouble, influenced mine ventilation, seriously damaged the fan simultaneously, consequently also need bring it into the list of abnormal situation, consequently also need start the warning procedure and indicate.
Further, when the closing action of the access door is monitored, a timer is started to start timing, and when the closing action of the access door is continuously detected within a second time period counted by the timer, a blade return-to-zero instruction is sent to a fan blade actuator. The preset second time period is a delay time period, the main purpose is to prevent the false zero return of the blade caused by the misoperation of the relay, and the trigger protection is generated after the access door is closed and the second time period is delayed by adding a delay switch-on timer.
Further, the preset first time period is 3 minutes, and the preset second time period is 2 seconds. The time period is an optimal time period obtained through a long-term test, is a conclusion obtained according to the operation of the main ventilation control system of the east-west air shaft of the actual coal mine, is determined according to the normal fan switching time of the east-west air shaft of the mine, and is determined according to the operation time length of the switch relay of the access door.
Example 3
An electronic device comprising at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores a program of instructions executable by the at least one processor to enable the at least one processor to perform the method of operating the mine main ventilator safely as set out in example 1.
Further, the instruction program includes a mine main ventilator safe operation system as set forth in example 2.
While the invention has been described in detail in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (3)
1. A safe operation method of a main mine ventilator is characterized by comprising the following steps: after monitoring that a fan blade actuator receives a blade zeroing instruction, judging a triggering condition of the blade zeroing instruction, and when the triggering condition of the blade zeroing instruction is judged to be inconsistent with a preset normal blade zeroing condition, triggering an alarm program, starting the position monitoring of the main mine fan blade and sending a video signal shot by monitoring to a designated video receiving terminal;
the preset normal blade zeroing condition is as follows: receiving a fan work switching instruction before monitoring a blade zero returning instruction;
after monitoring that a fan blade actuator receives a blade zeroing instruction, judging that a fan work switching instruction is not received before, and triggering an alarm program;
after monitoring that a fan blade actuator receives a blade zero return instruction, receiving a fan work switching instruction before judgment, further monitoring the blade angle change condition of a fan loaded by the fan work switching instruction in a preset first time period, and starting an alarm program if the blade angle change is zero in the preset first time period;
when the condition that a fan blade actuator receives a blade zero returning instruction is monitored, and a fan work switching instruction is received before judgment, starting a timer to start timing, starting a comparator to judge the blade angle change condition, and starting an alarm program when the comparator judges that the blade angle change is always zero within a preset first time period counted by the timer;
presetting a trigger condition of a blade zeroing instruction, wherein the trigger condition comprises closing of an access door;
and when the closing action of the access door is monitored, starting a timer to start timing, and when the closing action of the access door is continuously detected within a preset second time period counted by the timer, sending a blade return-to-zero instruction to a fan blade actuator.
2. The method of claim 1, wherein the predetermined first time period is 3 minutes and the predetermined second time period is 2 seconds.
3. An electronic device comprising at least one processor;
and a memory communicatively coupled to the at least one processor;
wherein the memory stores a program of instructions executable by the at least one processor to cause the at least one processor to perform the method of any one of claims 1-2.
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| CN202011058203.8A CN112177962B (en) | 2020-09-30 | 2020-09-30 | Safe operation method, system and equipment for mine main ventilator |
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| CN202011058203.8A CN112177962B (en) | 2020-09-30 | 2020-09-30 | Safe operation method, system and equipment for mine main ventilator |
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| CN112177962B true CN112177962B (en) | 2022-07-15 |
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| CN103883343A (en) * | 2014-03-24 | 2014-06-25 | 中国矿业大学 | Method for replacing coal mine main fan without blowing-down on basis of adjustable moving blades |
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2020
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| CN103883343A (en) * | 2014-03-24 | 2014-06-25 | 中国矿业大学 | Method for replacing coal mine main fan without blowing-down on basis of adjustable moving blades |
| CN104561588A (en) * | 2014-11-03 | 2015-04-29 | 江西铜业股份有限公司 | Method for achieving automatic blowing-in and blowing-out operations of PS converter |
| CN107345514A (en) * | 2016-05-06 | 2017-11-14 | 中国石油化工股份有限公司 | A kind of compressor boot system and method |
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