CN102797489B - Propping plate pressure graphical displaying and analyzing method based on thrusting degree of coal face - Google Patents
Propping plate pressure graphical displaying and analyzing method based on thrusting degree of coal face Download PDFInfo
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- CN102797489B CN102797489B CN201210279709.0A CN201210279709A CN102797489B CN 102797489 B CN102797489 B CN 102797489B CN 201210279709 A CN201210279709 A CN 201210279709A CN 102797489 B CN102797489 B CN 102797489B
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- 239000003245 coal Substances 0.000 title claims abstract description 17
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- 238000012544 monitoring process Methods 0.000 claims abstract description 31
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Abstract
The invention provides a propping plate pressure graphic displaying and analyzing method based on a thrusting degree of a coal face. According to the method, a propping plate pressure detecting system is adopted to detect a thrusting state and a propping plate supporting state during thrusting the coal face, wherein the propping plate pressure detecting system comprises hydraulic supports, support controllers, travel sensors, pressure sensors, signal converters and main monitoring machines; the hydraulic supports are arranged along the coal face, with each one provided with at least one pressure sensor thereon for measuring the propping plate supporting force of the hydraulic support; each hydraulic support is provided with a travel sensor thereon for measuring the thrusting travel thereof; each hydraulic support is provided with a support controller thereon, and each support controller is respectively connected with relevant travel sensor and pressure sensor; the support controllers are connected through connectors, and at least one support controller is connected with the main monitoring machine through the signal converter; and the main monitoring machine is arranged in a down trough.
Description
Technical field
The present invention relates to a kind of roof pressure figure display analysis method based on coal face advance rate, relate in particular to a kind of graphic display method that adopts support electrohydraulic control system to realize face pressure automatic monitoring cls analysis.
Background technology
Fully-mechanized mining working in underground mining, continuous variation due to roof pressure in advance of the face process, carry out great hidden danger to colliery safety belt, the monitoring of coal-face roof pressure, analyzing with management is most important ingredient in Safety of Coal Mine Production work, adopt after support electrohydraulic control system, the top plate supporting pressure of hydraulic support can be pooled on monitoring host computer manages concentratedly, but most still by the block diagram demonstration work at present face roof pressure value of hydraulic support, there is no Pressure Analysis function easily and effectively, the reply of work plane periodic weighting is not played to due effect, scene needs the monitoring system software of monitoring host computer that face pressure situation of change is provided, the variation tendency of pressure and the functions such as rule of periodic weighting.
Summary of the invention
In order to realize coal work surface pressure trend analysis merit, the present invention proposes a kind of according in advance of the face process, advance rate and pressure information being combined, along with the advance of the face, form an advance rate, pressure two dimension broken line graph, by broken line graph, can observe the variation tendency of face roof pressure, can observe the Changing Pattern along with top board periodic weighting in advance of the face process.Concrete technical scheme is:
A kind of roof pressure figure display analysis method based on coal face advance rate, use roof pressure detection system to detect in real time passing state and the top plate supporting state in coal-face progradation, described roof pressure detection system comprises hydraulic support, bracket controller, stroke sensor, pressure sensor, signal adapter and monitoring host computer; Described hydraulic support is arranged along coal-face, is used for support works face top board, and a described pressure sensor is at least installed on every hydraulic support, is used for measuring the top plate supporting pressure of hydraulic support; A described stroke sensor is installed on every hydraulic support, is used for measuring the passing stroke of each hydraulic support; A described bracket controller is installed on every hydraulic support, and each bracket controller is connected with pressure sensor with this stroke sensor respectively, to gather this passing stroke and top plate supporting pressure data; Between each bracket controller, by connector, connect and at least one bracket controller is connected with described monitoring host computer by signal adapter, so that the passing stroke of each hydraulic support and top plate supporting pressure data are sent on described monitoring host computer by described signal adapter; Described monitoring host computer is arranged on crossheading, be used for dynamic monitoring advance of the face degree and face roof pressure, analysis is along with the cyclically-varying situation of the propulsioning face roof pressure of work plane, and draw pressure broken line graph or pressure block diagram according to the cyclically-varying situation of face roof pressure, by pressure broken line graph or pressure block diagram judgement face roof pressure trend.
The abscissa of preferred described pressure broken line graph is for passing the average of stroke, and ordinate is the average of top plate supporting pressure.
The drawing process of preferred described pressure broken line graph is: step pitch of the every propelling of work plane, a new coordinate point will be produced, its abscissa is that each hydraulic support passes the average of stroke, i.e. the average passing step pitch of each hydraulic support, and ordinate is the average of each hydraulic support top plate supporting pressure; Along with the propelling of work plane, the coordinate point of generation is connected successively to mineralization pressure broken line graph.
Preferred described monitoring host computer exceeds monitoring during picture at pressure curve, the most advanced part that enters picture is ejected, to guarantee leaving nearest period pressure curve in monitored picture.
The drawing process of preferred described pressure block diagram is: each hydraulic support is used a post to represent, its ordinate represents working surface hydraulic support passing stroke, the size of the top plate supporting pressure of each hydraulic support represents by the shade of each post, and pressure is larger, and color is darker; Along with the propelling of work plane has formed a pressure block diagram consisting of the post of a plurality of different colours depths.
The invention has the advantages that:
1,, by advance rate-pressure broken line graph, can see intuitively the trend that work at present surface pressure changes;
2, can see intuitively the Changing Pattern of pressure in advance of the face process, see the position that periodic weighting occurs;
3, can see intuitively that each support is along with the pressure changing of advance of the face process;
4, can see intuitively the pressure distribution situation at synchronization work plane different parts stent support top board;
5, advance of the face shape can be described intuitively, and distribution, the situation of change of whole work plane pressure in progradation can be seen.
Accompanying drawing explanation
Accompanying drawing 1 is the catenation principle block diagram of roof pressure detection system of the present invention;
Accompanying drawing 2 is the schematic diagram of pressure broken line graph of the present invention;
Accompanying drawing 3 is the schematic diagram of pressure block diagram of the present invention.
The specific embodiment
Referring to accompanying drawing 1, it has described a preferred embodiment of coal-face roof pressure detection system (it comprises hydraulic support electrohydraulic control system) in the roof pressure figure display analysis method based on coal face advance rate of the present invention.Comprise hydraulic support, bracket controller, pressure sensor, stroke sensor, signal adapter and monitoring host computer.Coal-face has a plurality of hydraulic supports to arrange and form along work plane order, be used for supporting coal work top board, wherein on every hydraulic support, be all provided with a bracket controller, a stroke sensor and at least one pressure sensor, each pressure sensor, stroke sensor is electrically connected by the bracket controller on connector and same hydraulic support respectively, each bracket controller is connected in series by connector, at face end, be provided with a signal adapter, one end is connected with a bracket controller by connector, the other end is connected with the monitoring host computer of crossheading by connector.Each bracket controller is except controlling this basic function action, also gather pressure sensor and stroke sensor data on this, working surface hydraulic support top plate supporting pressure data in collecting pressure sensor and the hydraulic support in stroke sensor are passed after run-length data, each bracket controller is encoded to above-mentioned data, the information that adds therein hydraulic support, so that the pressure of each hydraulic support and run-length data are distinguished, then, each bracket controller is by the above-mentioned signal adapter sending through coded data, signal adapter is converted to above-mentioned data the discernible signal of monitoring host computer and this signal is forwarded on monitoring host computer.
The Data Dynamic monitoring face advance rate that monitoring host computer sends according to signal adapter and face roof pressure, by DAS or other attainable mode, analyze the cyclically-varying situation along with the propulsioning face roof pressure of work plane, and draw pressure broken line graph or pressure block diagram according to the cyclically-varying situation of face roof pressure, by pressure broken line graph or pressure block diagram judgement face roof abutment pressure variation tendency, top plate supporting pressure changing during as the different advance rate of same hydraulic support, the top plate supporting pressure of the identical or close advance rate of different hydraulic supports etc.
As working pressure broken line graph, in actual operating process, coal-face often cuts after a cutter at coal-winning machine, on monitoring host computer, passing stroke and the top plate supporting pressure data of full face hydraulic support will be received, by calculating work plane, pass stroke average and top plate supporting pressure mean values, on the picture of monitoring host computer, there is a new coordinate point, the abscissa of this point is that work plane is passed stroke average, ordinate is face roof abutment pressure average, this coordinate point and a upper coordinate point are coupled together and form a broken line with straight line, like this along with the passing of work plane, just formed a pressure broken line graph with the advance of the face.When this curve exceeds picture scope, the broken line graph of progress picture at first is partly shifted out to picture, keep latest data can be retained on picture always.The example of pressure broken line graph is referring to accompanying drawing 2.
As working pressure block diagram, coal-face often cuts after a cutter at coal-winning machine, on monitoring host computer, passing stroke and the top plate supporting pressure data of full face hydraulic support will be received, each hydraulic support is used a post to represent, there are how many hydraulic supports just in block diagram, to place how many posts, post is arranged in order by the physical location of hydraulic support, it is the sequence of positions that its abscissa means hydraulic support, its ordinate represents working surface hydraulic support passing stroke, pass its post of hydraulic support that stroke is large longer, pass its post of hydraulic support that stroke is little shorter, the size of the top plate supporting pressure of each hydraulic support represents by different colours or the shade of each post, pressure is larger, color is darker, as represented with black and white colour system, the hydraulic support that top plate supporting is larger, the color of its post will be more black, and the less hydraulic support of top plate supporting, the color of its post will be whiter, with this, distinguish, as use different colors, the larger hydraulic support of top plate supporting, the color of its post is used dark system to represent, and the less hydraulic support of top plate supporting, the color of its post is used light color system to represent, to form pressure size intuitively, represent, like this, along with the propelling of work plane has formed one by a plurality of different colours and color of the same race and the pressure block diagram that the post of the different colours depth forms.Like this along with the passing of work plane, just formed one with advance of the face shape, and can observe the propelling pressure changes in distribution situation along with whole work plane, observe every hydraulic support along with advance of the face pressure changing, be conducive to analyze roof pressure situation of change and the Changing Pattern of hydraulic support in whole coal cutting process.The example of pressure block diagram is referring to accompanying drawing 3.
The above; it is only the preferably specific embodiment of patent of the present invention; but the protection domain of patent of the present invention is not limited to this; anyly be familiar with in technical scope that those skilled in the art disclose in patent of the present invention; the variation that can expect easily or replacement, within all should being encompassed in the protection domain of patent of the present invention.
Claims (5)
1. the roof pressure figure display analysis method based on coal face advance rate, is characterized in that:
Use roof pressure detection system to detect in real time passing state and the top plate supporting state in coal-face progradation, described roof pressure detection system comprises hydraulic support, bracket controller, stroke sensor, pressure sensor, signal adapter and monitoring host computer;
Described pressure sensor is for collecting work face hydraulic support top plate supporting pressure data, and described stroke sensor is used for gathering hydraulic support and passes run-length data;
Described hydraulic support is arranged along coal-face, is used for support works face top board, and a described pressure sensor is at least installed on every hydraulic support, is used for measuring the top plate supporting pressure of hydraulic support;
A described stroke sensor is installed on every hydraulic support, is used for measuring the passing stroke of each hydraulic support;
A described bracket controller is installed on every hydraulic support, and each bracket controller is connected with pressure sensor with this stroke sensor respectively, to gather this passing stroke and top plate supporting pressure data;
Between each bracket controller, by connector, connect and at least one bracket controller is connected with described monitoring host computer by signal adapter, so that the passing stroke of each hydraulic support and top plate supporting pressure data are sent on described monitoring host computer by described signal adapter;
Described monitoring host computer is arranged on crossheading, be used for dynamic monitoring advance of the face degree and face roof pressure, analysis is along with the cyclically-varying situation of the propulsioning face roof pressure of work plane, and draw pressure broken line graph or pressure block diagram according to the cyclically-varying situation of face roof pressure, by pressure broken line graph or pressure block diagram judgement face roof pressure trend.
2. the roof pressure figure display analysis method based on coal face advance rate as claimed in claim 1, is characterized in that: the abscissa of described pressure broken line graph is for passing the average of stroke, and ordinate is the average of top plate supporting pressure.
3. the roof pressure figure display analysis method based on coal face advance rate as claimed in claim 2, it is characterized in that: the drawing process of described pressure broken line graph is: step pitch of the every propelling of work plane, a new coordinate point will be produced, its abscissa is the average of each hydraulic support passing stroke, be the average passing step pitch of each hydraulic support, ordinate is the average of each hydraulic support top plate supporting pressure; Along with the propelling of work plane, the coordinate point of generation is connected successively to mineralization pressure broken line graph.
4. the roof pressure figure display analysis method based on coal face advance rate as claimed in claim 3, it is characterized in that: described monitoring host computer is when pressure curve exceeds monitoring picture, the most advanced part that enters picture is ejected, to guarantee leaving nearest period pressure curve in monitored picture.
5. the roof pressure figure display analysis method based on coal face advance rate as claimed in claim 1, it is characterized in that: the drawing process of described pressure block diagram is: each hydraulic support is used a post to represent, its ordinate represents working surface hydraulic support passing stroke, the size of the top plate supporting pressure of each hydraulic support represents by the shade of each post, pressure is larger, and color is darker; Along with the propelling of work plane has formed a pressure block diagram consisting of the post of a plurality of different colours depths.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210279709.0A CN102797489B (en) | 2012-08-08 | 2012-08-08 | Propping plate pressure graphical displaying and analyzing method based on thrusting degree of coal face |
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| CN201210279709.0A CN102797489B (en) | 2012-08-08 | 2012-08-08 | Propping plate pressure graphical displaying and analyzing method based on thrusting degree of coal face |
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| CN102797489B true CN102797489B (en) | 2014-10-29 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111460643B (en) * | 2020-03-26 | 2023-12-19 | 兖矿集团有限公司 | Coal face support supporting force distribution cloud image representation method, device and system |
| CN112686889B (en) * | 2021-01-28 | 2022-03-25 | 郑州煤矿机械集团股份有限公司 | Hydraulic support pushing progress detection method and system based on monocular vision automatic label |
| CN113323698B (en) * | 2021-05-31 | 2023-11-03 | 国能神东煤炭集团有限责任公司 | Fully mechanized coal mining face propulsion distance calculation method, storage medium and electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1514956A1 (en) * | 1987-06-02 | 1989-10-15 | Государственный Макеевский Научно-Исследовательский Институт По Безопасности Работ В Горной Промышленности | System for monitoring the frontmost position of power support units |
| CN201696091U (en) * | 2010-03-05 | 2011-01-05 | 山东科大中天电子有限公司 | Mine ground pressure displacement monitoring system |
| CN101949302A (en) * | 2010-09-17 | 2011-01-19 | 山东新矿赵官能源有限责任公司 | Dynamic monitoring device of roadway-beside filling body and tunnel roof of gob-side entry and operating method thereof |
| CN102071956A (en) * | 2010-12-29 | 2011-05-25 | 北京中科林重科技有限公司 | Electro-hydraulic control system for working surface hydraulic support |
| CN102242629A (en) * | 2010-05-14 | 2011-11-16 | 淮南矿业(集团)有限责任公司 | Coal bed gas pressure detection system |
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2012
- 2012-08-08 CN CN201210279709.0A patent/CN102797489B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1514956A1 (en) * | 1987-06-02 | 1989-10-15 | Государственный Макеевский Научно-Исследовательский Институт По Безопасности Работ В Горной Промышленности | System for monitoring the frontmost position of power support units |
| CN201696091U (en) * | 2010-03-05 | 2011-01-05 | 山东科大中天电子有限公司 | Mine ground pressure displacement monitoring system |
| CN102242629A (en) * | 2010-05-14 | 2011-11-16 | 淮南矿业(集团)有限责任公司 | Coal bed gas pressure detection system |
| CN101949302A (en) * | 2010-09-17 | 2011-01-19 | 山东新矿赵官能源有限责任公司 | Dynamic monitoring device of roadway-beside filling body and tunnel roof of gob-side entry and operating method thereof |
| CN102071956A (en) * | 2010-12-29 | 2011-05-25 | 北京中科林重科技有限公司 | Electro-hydraulic control system for working surface hydraulic support |
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Address after: 100013, Beijing, Chaoyang District, Hepingli Youth ditch East Road, building 5, one floor Patentee after: CCTEG Beijing Tianma Intelligent Control Technology Co.,Ltd. Address before: 100013, Beijing, Chaoyang District, Hepingli Youth ditch East Road, building 5, one floor Patentee before: BEIJING TIANDI-MARCO ELECTRO-HYDRAULIC CONTROL SYSTEM Co.,Ltd. |