CN113432637A - Mining coal face CT monitoring system and method - Google Patents
Mining coal face CT monitoring system and method Download PDFInfo
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- CN113432637A CN113432637A CN202110513182.2A CN202110513182A CN113432637A CN 113432637 A CN113432637 A CN 113432637A CN 202110513182 A CN202110513182 A CN 202110513182A CN 113432637 A CN113432637 A CN 113432637A
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- 239000003245 coal Substances 0.000 title claims abstract description 141
- 238000005065 mining Methods 0.000 title claims abstract description 83
- 238000012544 monitoring process Methods 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000012806 monitoring device Methods 0.000 claims abstract description 59
- 238000011084 recovery Methods 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 5
- 230000002265 prevention Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012502 risk assessment Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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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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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
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Abstract
The invention provides a mining coal face CT monitoring system and method, which comprises an upper computer, a CT monitoring device and a collecting substation, wherein the CT monitoring device is used for being installed on a mined coal body and monitoring the vibration frequency and the stress value of the mined coal body, the collecting substation is used for being installed on a scraper machine head, the output end of the CT monitoring device is connected with the input end of the collecting substation, and the output end of the collecting substation is connected with the upper computer. The invention realizes the real-time monitoring of the vibration frequency and the stress value of the mined coal by the CT monitoring device, acquires and transmits the vibration frequency and the stress value to the upper computer by the acquisition substation, obtains the vibration intensity and the stress variation of the mined coal through the analysis of the upper computer, further provides a reliable monitoring means for the prediction, the forecast and the prevention of dynamic disasters, improves the safety of coal mining and ensures the construction safety.
Description
Technical Field
The invention relates to the technical field of coal face monitoring, in particular to a mining coal face CT monitoring system and method.
Background
In the process of coal mining, stress change and vibration intensity change of a coal body mined from a fully mechanized coal mining face of a coal mine often cannot be predicted and prevented due to the fact that the stress change and the vibration intensity change of the coal body mined from the fully mechanized coal mining face of the coal mine cannot be detected, safety accidents are caused, and safety of coal mining and life safety of workers are seriously affected.
Disclosure of Invention
The invention provides a mining coal face CT monitoring system and method, which are used for overcoming the defect that the danger source of a mined coal body cannot be pre-judged in the prior art, realizing the real-time monitoring of the stress change and the vibration intensity change of the mined coal body and ensuring the safety of mining work and workers.
The invention provides a mining coal face CT monitoring system, comprising:
an upper computer;
the CT monitoring device is used for being installed on a coal recovery body and monitoring the vibration frequency and the stress value of the coal recovery body;
the CT monitoring system comprises a collecting substation, wherein the collecting substation is used for being installed on a scraper head, the output end of the CT monitoring device is connected with the input end of the collecting substation, and the output end of the collecting substation is connected with an upper computer.
According to the CT monitoring system for the mining coal face, provided by the invention, a plurality of CT monitoring devices are arranged, and the CT monitoring devices are installed on the coal stoping body through a plurality of anchor rods.
According to the CT monitoring system for the mining coal face, provided by the invention, the installation heights of a plurality of anchor rods are positioned in the same horizontal plane.
The mining coal face CT monitoring system further comprises a positioning sensor, wherein the positioning sensor is used for being installed on a coal mining machine, and is connected with the collecting substation.
According to the mining coal face CT monitoring system provided by the invention, the upper computer is connected with the collecting substation through an Ethernet ring network.
According to the mining coal face CT monitoring system provided by the invention, the collecting substation is connected with the CT monitoring device through the controller local area network.
According to the mining coal face CT monitoring system provided by the invention, the CT monitoring devices are respectively arranged on the coal recovery body of the return airway and the coal recovery body of the glue transportation airway.
According to the mining coal face CT monitoring system provided by the invention, the upper computer comprises a controller and a touch display screen, the controller is connected with the touch display screen, and the input end of the controller is connected with the acquisition substation.
According to the mining coal face CT monitoring system provided by the invention, the upper computer further comprises an alarm, the controller is preset with a vibration safety threshold and a stress safety threshold, and the alarm is connected with the output end of the controller.
The invention also provides a mining coal face CT monitoring method, which comprises the following steps:
monitoring the vibration frequency and the stress value of the mined coal body in real time through the CT monitoring device;
receiving the vibration frequency and the stress value obtained by the CT monitoring device through the acquisition substation, and transmitting the vibration frequency and the stress value to the upper computer;
and analyzing the vibration frequency and the stress value through the upper computer, and further identifying the dangerous source of the coal mining body.
According to the mining coal face CT monitoring system and method provided by the invention, the upper computer, the CT monitoring device and the collecting substation are arranged, the CT monitoring device is used for being installed on a mined coal body and used for monitoring the vibration frequency and the stress value of the mined coal body, the collecting substation is used for being installed on a scraper head, the output end of the CT monitoring device is connected with the input end of the collecting substation, the output end of the collecting substation is connected with the upper computer, the CT monitoring device is used for monitoring the vibration frequency and the stress value of the mined coal body in real time, the collected coal body is collected by the collecting substation and transmitted to the upper computer, and the vibration intensity and the stress variation of the mined coal body are obtained through analysis of the upper computer, so that a reliable monitoring means is provided for prediction, prediction and prevention of power disasters, the safety of coal mining is improved, and the construction safety is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a block diagram of a mining coal face CT monitoring system provided by the present invention;
FIG. 2 is a schematic view of the field installation of a mining coal face CT monitoring system provided by the invention;
FIG. 3 is a flow chart of a mining coal face CT monitoring method provided by the invention;
reference numerals:
1: an upper computer; 2: a CT monitoring device; 3: collecting substations;
4: a positioning sensor; 5: coal bodies are mined; 6: a scraper machine head;
7: a coal mining machine; 8: a controller; 9: a touch display screen;
10: an alarm.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The mining coal face CT monitoring system of the present invention is described below with reference to fig. 1 and 2, and includes:
an upper computer 1;
the CT monitoring device 2 is used for being installed on the coal recovery body 5 and monitoring the vibration frequency and the stress value of the coal recovery body 5;
the acquisition substation 3 is used for being installed on a scraper machine head 6, the output end of the CT monitoring device 2 is connected with the input end of the acquisition substation 3, and the output end of the acquisition substation 3 is connected with the upper computer 1. It can be understood that the CT monitoring device 2 is configured to be installed on the mined coal 5 to realize real-time monitoring of the vibration frequency and the stress value of the mined coal 5, that is, the CT monitoring device 2 monitors the vibration signal and the coal stress variation of the mined coal 5 in real time. The acquisition substation 3 is arranged on a scraper machine head 6, the input end of the acquisition substation 3 is connected with the output end of the CT monitoring device 2, and the vibration frequency and the stress value of the coal stoping body 5 monitored by the CT monitoring device 2 in real time are realized. The output end of the collecting substation 3 is connected with the upper computer 1, so that the vibration frequency and the stress value of the coal mining body 5 are transmitted, the upper computer 1 is used for analyzing the construction condition of the coal mining body 5, the danger source and the dynamic disaster of the coal mining body 5 are predicted, and the worker can make prevention and safety measures according to the prediction, so that reliable monitoring means are improved, the coal mining safety is guaranteed, and the life safety of the worker is guaranteed.
According to the mining coal face CT monitoring system provided by the invention, a plurality of CT monitoring devices 2 are arranged, and a plurality of CT monitoring devices 2 are arranged on a coal mining body 5 through a plurality of anchor rods. It can be understood that, in order to improve the accuracy and monitoring range of the vibration signal of the recovered coal 5 and the stress variation of the coal, a plurality of CT monitoring devices 2 are provided and uniformly installed on the recovered coal 5 or at the position of the relatively loose recovered coal 5. CT monitoring devices 2 pass through stock one-to-one fixed mounting on the coal body 5 of stoping, rely on the stock transmission to stope the vibration signal of the coal body 5, that is to say, the stock is fixed to be worn to locate in the coal body 5 of stoping, the vibration of the coal body 5 of stoping drives the stock vibration, CT monitoring devices 2 gathers the vibration of stock, and then the monitoring to the vibration of the coal body 5 of stoping is realized, when guaranteeing CT monitoring devices 2's installation intensity and convenience, guarantee monitoring result's accuracy.
According to the mining coal face CT monitoring system provided by the invention, the installation heights of a plurality of anchor rods are positioned in the same horizontal plane. It can be understood that, the number that sets up of stock is the same with CT monitoring devices 2's number, and the mounting height of a plurality of stocks is located same horizontal plane, guarantees that a plurality of CT monitoring devices 2's mounting height is the same, realizes guaranteeing the comprehensive monitoring to the coal mining body 5 to the vibration frequency and the stress value of the same high different positions of coal mining body 5, improves the accuracy of monitoring simultaneously.
The mining coal face CT monitoring system further comprises a positioning sensor 4, wherein the positioning sensor 4 is used for being installed on a coal mining machine 7, and the positioning sensor 4 is connected with the collecting substation 3. It can be understood that, be provided with a plurality of positioning sensor 4 on the coal-winning machine 7, positioning sensor 4 is used for acquireing the face position of adopting of coal-winning machine 7 in real time, gather the substation 3 all with a plurality of positioning sensor 4, gather the face position of adopting of coal-winning machine 7 that the substation 3 received the monitoring of positioning sensor 4, and transmit to host computer 1, and then make things convenient for the staff to the real-time supervision of face position, and combine CT monitoring system's monitoring structure, the realization is to the accurate positioning of the dangerous source of the back production coal body 5, the later stage location prevention and cure of being convenient for.
According to the mining coal face CT monitoring system provided by the invention, an upper computer 1 is connected with a collecting substation 3 through an Ethernet ring network. It can be understood that the upper computer 1 is connected with the acquisition substation 3 through the ethernet ring network, so that the accurate transmission of the acquired information is realized, and the accuracy and the high efficiency of data transmission are ensured.
According to the mining coal face CT monitoring system provided by the invention, the collecting substation 3 is connected with the CT monitoring device 2 through the controller local area network. It can be understood that the collecting substations 3 are connected with the plurality of CT monitoring devices 2 in a one-to-one correspondence manner through the controller local area network, so that accurate transmission of monitoring information is realized, and accuracy and high efficiency of monitoring data are ensured.
According to the mining coal face CT monitoring system provided by the invention, the CT monitoring device 2 is respectively arranged on the coal recovery body 5 of the return airway and the coal recovery body 5 of the glue transportation airway. It can be understood that a plurality of CT monitoring devices 2 are arranged on the coal mining body 5 of the return airway, and a plurality of CT monitoring devices 2 are arranged on the coal mining body 5 of the glue transportation lane, so that the independent real-time monitoring of the coal mining body 5 of the return airway and the coal mining body 5 of the glue transportation lane is realized, and the monitoring accuracy is improved.
According to the mining coal face CT monitoring system provided by the invention, the upper computer 1 comprises a controller 8 and a touch display screen 9, the controller 8 is connected with the touch display screen 9, and the input end of the controller 8 is connected with the acquisition substation 3. It can be understood that host computer 1 includes controller 8 and touch display screen 9, controller 8 is connected with touch display screen 9, the output of gathering substation 3 is connected with controller 8's input, the realization is transmitted the data message of 2 monitoring of CT monitoring devices to controller 8, predetermine monitoring software in the controller 8, carry out the analysis to vibration frequency and stress value, and then show the structure condition of the coal body 5 of the back mining who obtains at touch display screen 9, make things convenient for the staff to look over in real time.
According to the mining coal face CT monitoring system provided by the invention, the upper computer 1 further comprises an alarm 10, the controller 8 presets a vibration safety threshold and a stress safety threshold, and the alarm 10 is connected with the output end of the controller 8. It can be understood that the upper computer 1 is further provided with an alarm 10, a vibration safety threshold value and a stress safety threshold value are preset in the controller 8, when the vibration frequency monitored by the CT monitoring device 2 is greater than the vibration safety threshold value or the monitored stress value is greater than the stress safety threshold value, the controller 8 sends an alarm signal to the alarm 10, the alarm 10 sends out an alarm, a worker stops in time to check and prevent, and a danger source of the mined coal body 5 is removed.
The mining coal face CT monitoring method provided by the present invention is described below, and the mining coal face CT monitoring method described below and the mining coal face CT monitoring system described above may be referred to in correspondence with each other.
As shown in fig. 3, the invention further provides a mining coal face CT monitoring method, which includes the following steps:
monitoring the vibration frequency and stress value of the coal mining body 5 in real time through the CT monitoring device 2;
the vibration frequency and the stress value obtained by the CT monitoring device 2 are received through the acquisition substation 3 and are transmitted to the upper computer 1;
and analyzing the vibration frequency and the stress value through the upper computer 1, and further identifying the dangerous source of the coal mining body 5.
The invention provides a mining coal face CT monitoring method, which specifically comprises the following steps:
respectively and fixedly installing a CT monitoring device 2 on a coal recovery body 5 of a return airway and a coal recovery body 5 of a rubber transportation lane through anchor rods, ensuring that the installation heights of the anchor rods are positioned in the same horizontal plane, and monitoring the vibration frequency and the stress value of the coal recovery body 5 in real time by the CT monitoring device 2; that is, when the coal mining machine 7 works, vibration is generated, vibration waves are transmitted to the anchor rod in the coal mining body 5, and the CT monitoring device 2 monitors the vibration waves of the anchor rod;
the acquisition substation 3 is arranged on a scraper machine head 6 and is respectively connected with the CT monitoring devices 2 one by one through a controller local area network, so that the acquisition of the vibration frequency and stress value of the mined coal 5 monitored by the CT monitoring devices 2 by the acquisition substation 3 is realized;
the positioning sensor 4 is arranged on the coal mining machine 7 and is connected with the collecting substation 3 through a wireless network, so that the mining surface position of the coal mining machine 7 is correspondingly transmitted to the collecting substation 3;
the input end of the controller 8 is connected with the acquisition substation 3 through an Ethernet ring network and is used for receiving the vibration frequency and the stress value of the mined coal body 5 monitored by the CT monitoring device 2 and the mining surface position of the coal mining machine 7 acquired by the positioning sensor 4, analyzing the vibration frequency and the stress value through monitoring software in the controller 8, obtaining the structural condition of the mined coal body 5 according to the arrival time and the waveform change of the vibration wave, displaying the structural condition inside the mined coal body 5 through a touch display screen 9 and carrying out risk assessment;
along with the coal mining progress of the coal mining machine 7, when the vibration frequency monitored by the CT monitoring device 2 is greater than the vibration safety threshold or the monitored stress value is greater than the stress safety threshold, the controller 8 sends an alarm signal to the alarm 10, the alarm 10 sends out an alarm, a worker stops the machine in time to check, control and remove the dangerous source of the stoped coal body 5 by positioning, controlling and removing the dangerous source in combination with the positioning information of the mining face position acquired by the positioning sensor 4.
The invention provides a mining coal face CT monitoring system and a mining coal face CT monitoring method, wherein an upper computer, a CT monitoring device and a collecting substation are arranged, the CT monitoring device is used for being installed on a mined coal body and used for monitoring the vibration frequency and the stress value of the mined coal body, the collecting substation is used for being installed on a scraper head, the output end of the CT monitoring device is connected with the input end of the collecting substation, and the output end of the collecting substation is connected with the upper computer, so that the CT monitoring device can monitor the vibration frequency and the stress value of the mined coal body in real time, the collected coal body is collected by the collecting substation and transmitted to the upper computer, and the vibration intensity and the stress change of the mined coal body are obtained through analysis of the upper computer, so that a reliable monitoring means is provided for prediction, forecast and prevention of power disasters, the safety of coal mining is improved, and the construction safety is guaranteed.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A mining coal face CT monitoring system is characterized by comprising:
an upper computer;
the CT monitoring device is used for being installed on a coal recovery body and monitoring the vibration frequency and the stress value of the coal recovery body;
the CT monitoring system comprises a collecting substation, wherein the collecting substation is used for being installed on a scraper head, the output end of the CT monitoring device is connected with the input end of the collecting substation, and the output end of the collecting substation is connected with an upper computer.
2. The mining coal face CT monitoring system of claim 1, wherein the CT monitoring devices are provided in plurality, and the plurality of CT monitoring devices are mounted on the mined coal body by a plurality of anchor rods.
3. The mining coal face CT monitoring system of claim 2, wherein the mounting heights of the plurality of anchor rods are located in the same horizontal plane.
4. The mining coal face CT monitoring system of claim 1, further comprising a positioning sensor configured to be mounted on a coal mining machine, the positioning sensor being connected to the collection substation.
5. The mining coal face CT monitoring system of claim 1, wherein the upper computer is connected to the collection substation via an Ethernet ring network.
6. The mining coal face CT monitoring system of claim 1, wherein the collection substation is connected to the CT monitoring device through a controller area network.
7. The mining coal face CT monitoring system of claim 1, wherein the CT monitoring device is configured to be mounted on a mined coal body of a return airway and a mined coal body of a glue transportation airway, respectively.
8. The mining coal face CT monitoring system of claim 1, wherein the upper computer includes a controller and a touch display screen, the controller is connected with the touch display screen, and an input end of the controller is connected with the acquisition substation.
9. The mining coal face CT monitoring system of claim 8, wherein the upper computer further comprises an alarm, the controller presets a vibration safety threshold and a stress safety threshold, and the alarm is connected with an output end of the controller.
10. A monitoring method of a mining coal face CT monitoring system as claimed in any one of claims 1 to 9, characterised by the steps of:
monitoring the vibration frequency and the stress value of the mined coal body in real time through the CT monitoring device;
receiving the vibration frequency and the stress value obtained by the CT monitoring device through the acquisition substation, and transmitting the vibration frequency and the stress value to the upper computer;
and analyzing the vibration frequency and the stress value through the upper computer, and further identifying the dangerous source of the coal mining body.
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| CN202110513182.2A CN113432637A (en) | 2021-05-11 | 2021-05-11 | Mining coal face CT monitoring system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110513182.2A CN113432637A (en) | 2021-05-11 | 2021-05-11 | Mining coal face CT monitoring system and method |
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| US4143552A (en) * | 1978-03-01 | 1979-03-13 | General Electric Company | Coal seam sensor |
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| CN105005081A (en) * | 2015-08-11 | 2015-10-28 | 西安科技大学 | Dynamic tomography system and method for fully mechanized face near field coal rock under exploiting excitation of coal machine |
| CN207813654U (en) * | 2017-12-01 | 2018-09-04 | 中国矿业大学(北京) | Based on ranging and the coal working face calamity forecast system to test the speed |
| CN110454229A (en) * | 2019-07-17 | 2019-11-15 | 天地科技股份有限公司 | A kind of mining Microseismic monitoring system |
| CN111577360A (en) * | 2020-06-12 | 2020-08-25 | 中南大学 | Recoverable acquisition instrument for real-time observation of stress characteristic and vibration characteristic of stope surrounding rock and use method |
-
2021
- 2021-05-11 CN CN202110513182.2A patent/CN113432637A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4143552A (en) * | 1978-03-01 | 1979-03-13 | General Electric Company | Coal seam sensor |
| CN102691521A (en) * | 2012-05-18 | 2012-09-26 | 北京安科兴业科技有限公司 | Installation method for driving working face monitoring system |
| CN105005081A (en) * | 2015-08-11 | 2015-10-28 | 西安科技大学 | Dynamic tomography system and method for fully mechanized face near field coal rock under exploiting excitation of coal machine |
| CN207813654U (en) * | 2017-12-01 | 2018-09-04 | 中国矿业大学(北京) | Based on ranging and the coal working face calamity forecast system to test the speed |
| CN110454229A (en) * | 2019-07-17 | 2019-11-15 | 天地科技股份有限公司 | A kind of mining Microseismic monitoring system |
| CN111577360A (en) * | 2020-06-12 | 2020-08-25 | 中南大学 | Recoverable acquisition instrument for real-time observation of stress characteristic and vibration characteristic of stope surrounding rock and use method |
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Application publication date: 20210924 |