CN105507941A - Underground coal mine face automatic safeguard system - Google Patents
Underground coal mine face automatic safeguard system Download PDFInfo
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- CN105507941A CN105507941A CN201410498309.8A CN201410498309A CN105507941A CN 105507941 A CN105507941 A CN 105507941A CN 201410498309 A CN201410498309 A CN 201410498309A CN 105507941 A CN105507941 A CN 105507941A
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Abstract
The invention relates to the technical field of mining safety equipment, in particular to an underground coal mine face automatic safeguard system. An input end of a programmable controller is connected separately with various sensors, a multi-stage air supply control relay set is connected with a high-pressure air pipe opening-closing electromagnetic valve set which is connected with a pressure reducing nozzle, a water mist control relay is connected with a high-pressure water pipe opening-closing electromagnetic valve which is connected with a mist nozzle, a dedusting fan start and stop control relay is connected with a mining dedusting fan, heading machine stop relay or other equipment stop relays are connected with a heading machine and other devices, and a feeder switch control relay is connected with a mining feeder switch. The automatic protective system is designed for an underground work face with respect to prior art defects, and problems are solved that underground coal mine safety for production is required, gas explosion, coal dust explosion, carbon monoxide poisoning and mechanical wounding need to be prevented, the damage of dust to workers in the production process needs to be reduced and non-air operation needs to be prevented.
Description
Technical field:
The present invention relates to mine safety equipment technical field, be specifically related to underground coal mine work plane automation safety system.
Background technology:
Existing downhole safety ventilation apparatus when main air blower have a power failure, maintenance or fault time, standby fan does not likely start (as Fig. 2 " single cave air feed schematic diagram " automatically, main air blower and standby fan are all to an airduct air feed, instead of two airducts, so just there is the phenomenon of air supply of working face problem deficiency), or because air duct disconnect (duct-joint damages), tear, tunnel extruding cause airduct distortion after, capital causes air supply of working face not enough or calm, according to " Safety of Coal Mine Production code ", above-mentioned situation forbids calm operation.For above-mentioned situation, staff wants to withdraw work plane, closely then hundreds of rice, far then a few km, belongs to calm and withdraws, add unsafe factor.
In addition, in recovery process, often occur dust exceeding, the problems such as the on-the-spot dust pollution of work plane is serious, harm workers ' health, also may cause coal-dust explosion.Although Some Domestic colliery (opening Luan) is meeting head on to be equipped with dedusting fan, automaticity is low, and personnel can only be manually opened, adds work difficulty.
According to " Safety of Coal Mine Production code ", when development machine of meeting head on operates, staff is forbidden operation near development machine.But in actual production process, when often running into development machine unlatching, side also has staff to carry out other operations.Domestic accident of hurting sb.'s feelings about development machine is also of common occurrence.
Summary of the invention:
The object of this invention is to provide underground coal mine work plane automation safety system; it is for prior art defect; a set of automation protect system is devised to mining face under mine; solution coal mine downhole safety is produced; prevent gas explosion, coal-dust explosion, anthracemia, machinery from hurting sb.'s feelings; reduce dust in recovery process and, to the injury of staff, prevent the problems such as calm operation.
In order to solve the problem existing for background technology, the present invention is by the following technical solutions: it comprises programmable logic controller, ram force sensor, firedamp sensor, CO sensor, CO
2sensor, temperature pick up, dust sensor, Smoke Sensor, far infrared nearly body protection sensor, Flameproof and intrinsically safe is mining ups power case, display unit, underground communica tion substation, aboveground Surveillance center, multistage air feed control relay group, water spray control relay, dedusting fan start-stop control relay, development machine stop or other equipment plugging relaies, feeding switch control relay, and the input of described programmable logic controller is connected to ram force sensor, firedamp sensor, CO sensor, CO
2sensor, temperature pick up, dust sensor, Smoke Sensor, far infrared nearly body protection sensor, Flameproof and intrinsically safe is mining ups power case, ram force sensor, firedamp sensor, CO sensor, CO
2sensor, temperature pick up, dust sensor, Smoke Sensor, all mining with the Flameproof and intrinsically safe ups power case of far infrared nearly body protection sensor is connected, the output of described programmable logic controller is connected with display unit, underground communica tion substation, multistage air feed control relay group, water spray control relay, dedusting fan start-stop control relay, development machine stops or other equipment plugging relaies, feeding switch control relay, underground communica tion substation is connected with aboveground Surveillance center, multistage air feed control relay group is connected with high-pressure air hose opening and closing electromagnetic valve group, high-pressure air hose opening and closing electromagnetic valve group connects high-pressure air hose pressure regulating equipment and connects, water spray control relay is connected with high-pressure water pipe opening and closing electromagnetic valve, high-pressure water pipe opening and closing electromagnetic valve and high-pressure water pipe water mist sprinkling equipment connection, dedusting fan start-stop control relay is connected with dust-removing blower for mine, development machine stops or other equipment plugging relaies and development machine and other equipment connections, feeding switch control relay group and mining feed switch, high-pressure air hose opening and closing electromagnetic valve group is connected with all mining with the Flameproof and intrinsically safe ups power case of high-pressure water pipe opening and closing electromagnetic valve.
The present invention has following beneficial effect: it is for prior art defect; a set of automation protect system is devised to mining face under mine; solution coal mine downhole safety is produced; prevent gas explosion, coal-dust explosion, anthracemia, machinery from hurting sb.'s feelings; reduce dust in recovery process and, to the injury of staff, prevent the problems such as calm operation.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is background technology list cave air feed schematic diagram;
Fig. 3 is the multistage air feed structural representation of the present invention.
Detailed description of the invention:
Referring to Fig. 1 and Fig. 3, this detailed description of the invention by the following technical solutions: it comprises programmable logic controller 1, ram force sensor 2, firedamp sensor 3, CO sensor 4, CO
2sensor 5, temperature pick up 6, dust sensor 7, Smoke Sensor 8, far infrared nearly body protection sensor 9, Flameproof and intrinsically safe is mining ups power case 10, display unit 11, underground communica tion substation 12, multistage air feed control relay group 13, water spray control relay 14, dedusting fan start-stop control relay 15, development machine stop or other equipment plugging relaies 16, feeding switch control relay 17, and the input of described programmable logic controller 1 is connected to ram force sensor 2, firedamp sensor 3, CO sensor 4, CO
2sensor 5, temperature pick up 6, dust sensor 7, Smoke Sensor 8, far infrared nearly body protection sensor 9, Flameproof and intrinsically safe is mining ups power case 10, ram force sensor 2, firedamp sensor 3, CO sensor 4, CO
2sensor 5, temperature pick up 6, dust sensor 7, Smoke Sensor 8, all mining with the Flameproof and intrinsically safe ups power case 10 of far infrared nearly body protection sensor 9 is connected, the output of described programmable logic controller 1 is connected with display unit 11, underground communica tion substation 12, multistage air feed control relay group 13, water spray control relay 14, dedusting fan start-stop control relay 15, development machine stops or other equipment plugging relaies 16, feeding switch control relay 17, underground communica tion substation 12 is connected with aboveground Surveillance center 18, multistage air feed control relay group 13 is connected with high-pressure air hose opening and closing electromagnetic valve group 19, high-pressure air hose opening and closing electromagnetic valve group 19 connects high-pressure air hose decompression shower nozzle 20 and connects, water spray control relay 14 is connected with high-pressure water pipe opening and closing electromagnetic valve 21, high-pressure water pipe opening and closing electromagnetic valve 21 is connected with high-pressure water pipe water mist sprinkling equipment 22, dedusting fan start-stop control relay 15 is connected with dust-removing blower for mine 23, development machine stops or other equipment plugging relaies 16 are connected with development machine and other equipment 24, feeding switch control relay 17 and mining feed switch 25, high-pressure air hose opening and closing electromagnetic valve group 19 is connected with all mining with the Flameproof and intrinsically safe ups power case 10 of high-pressure water pipe opening and closing electromagnetic valve 21.
Gas unit: gas is the formidable enemy of Safety of Coal Mine Production, have many collieries that gas explosion occurs every year, cause casualties, mine is seriously damaged.In order to prevent gas exceeding limit, blast, native system can utilize methane transducer automatically to monitor face gas concentration.In the multistage air feed structural representation of Fig. 3, multistage air feed control relay group 13 is made up of three relays, and three electromagnetic valves of corresponding high-pressure air hose opening and closing electromagnetic valve group 19, form three grades and add blast respectively.When gas density reaches default concentration, system automatically can start high-pressure air hose opening and closing electromagnetic valve group 19 and report to the police, and opens one-level electromagnetic valve and adds blast, open high-pressure air hose and dispel face gas, effectively reduce gas density of meeting head on.When a certain setting value of gas density reduction system, 19 close, and close high-pressure air hose.If gas density is not fallen or is increased under one-level pressurized condition, system can control secondary or three grades of electromagnetic valves carry out secondary or three grades add blast.Meanwhile, for the spark ignition preventing mechanical friction, spoil collision etc. from producing causes gas explosion, system can utilize 14 controls 21 to open high-pressure water pipe to carry out mist cooling, and after high-pressure air hose is closed, high-pressure water pipe spraying is also closed immediately.If face gas outburst amount is excessive, when above-mentioned measure can not reduce gas density, according to " Safety of Coal Mine Production regulation ", when gas density is more than 1.5%, system drive 17 controls mining feed switch, stops powering to work plane.But because this system adopts the mining ups power case of a set of Flameproof and intrinsically safe to power, high pressure air feed and spraying also can continue unlatching 4 hours, for follow-up process is laid the groundwork.Above-mentioned situation all can be transferred to ground monitoring center with 485 communication modes through underground communica tion substation, accomplishes that omnibearing stereoization is protected.
Carbon monoxide unit: carbonomonoxide concentration exceeds standard and staff's anthracemia not only can be caused dead, and also has the danger of blast.Therefore, work plane is also the most important thing to the monitoring of carbon monoxide, control.Carbonomonoxide concentration is gathered by the carbon monoxide transducer 4 installed, and judges through system, adopts the measure identical with above-mentioned gas exceeding limit when reaching setting concentration.Above-mentioned situation all can be transferred to ground monitoring center with 485 communication modes through underground communica tion substation, accomplishes that omnibearing stereoization is protected.
Carbon dioxide unit: in process of coal mining, personnel breathe, fuel oil machinery equipment operation, spontaneous combustionof coal generate heat, and all can produce carbon dioxide, if staff can be caused to have difficulty in breathing in air feed deficiency in small space of meeting head on.This unit is by carbon dioxide sensor 5 collection site data, and operating principle is identical with above-mentioned two kinds of unit.Above-mentioned situation all can be transferred to ground monitoring center with 485 communication modes through underground communica tion substation, accomplishes that omnibearing stereoization is protected.
Temperature unit: in process of coal mining, machine operation, coal seam heating all can cause work plane temperature to raise, and add potential safety hazard.When temperature pick up collects temperature data higher than default value, system controls 21 by 14 and carries out mist cooling, closes spraying when reaching a certain desired temperature.Above-mentioned situation all can be transferred to ground monitoring center with 485 communication modes through underground communica tion substation.According to permeable omen, when system monitoring declines suddenly to work plane temperature.To ore deposit side due to temperature variations, provide the hydrology on the other hand data, be also colliery permeable give photograph
Dust unit: dust (coal dust, cash dirt) is the most important dangerous matter sources in colliery.When there is gas explosion or fire, also can explode if coal dust exceeds standard, the safety in the healthy and colliery of workman in serious harm simultaneously.Under workers with long time is operated in dust atmosphere simultaneously, be easy to obtain pneumoconiosis, this is also the modal occupational disease of coal miner, and serious harm miner is healthy.For this situation, native system controls dust-removing blower for mine make and break contact by 15, when the face dust concentration that dust sensor 7 gathers is greater than default concentration, system can open dedusting fan depositing dust automatically, and open water spraying is simultaneously until dust concentration closes dedusting fan and water spray after being less than a certain setting value.Above-mentioned situation all can be transferred to ground monitoring center with 485 communication modes through underground communica tion substation, accomplishes that omnibearing stereoization is protected.
Smoke units: in working face mining process, because spontaneous combustion of coal seam, mechanical wear, electric cable heating all can produce smog.Containing a large amount of pernicious gas in smog, harm workers ' health.This system utilizes Smoke Sensor collection site smokescope, and control 21 open water fog spray heads by 14 after reaching default value and reduce smokescope, simultaneity factor can utilize 19 unlatching one-levels to add blast, accelerates to reduce smokescope.After smokescope is reduced to a certain setting value, system closes 19 and 21 automatically.Above-mentioned situation all can be transferred to ground monitoring center with 485 communication modes through underground communica tion substation, accomplishes that omnibearing stereoization is protected.
Nearly body protected location: native system has installed far infrared nearly body protection sensor 9; when there are personnel in plant equipment front; Systematical control 15 links plant equipment make and break contact, makes it not drive or to stop in emergency, effectively avoids coal-winning machine, situation generation hurted sb.'s feelings by development machine.
Airduct monitoring unit: in existing coal production, single cave air supply of working face adopts two fans, dual power supply, single cave for airduct ventilating structure (Fig. 2), experience according to my years of work, but when main air blower have a power failure, maintenance or fault time, standby fan does not likely start automatically, or because airduct disconnect (damages of airduct section header), tear, tunnel extruding cause airduct distortion after, capital causes air supply of working face not enough or calm, according to " Safety of Coal Mine Production code ", above-mentioned situation forbids calm operation.For above-mentioned situation, staff wants to withdraw work plane, closely then hundreds of rice, far then a few km, belongs to calm and withdraws, add unsafe factor.For above-mentioned situation, this system utilizes airduct existing ram force sensor 2 contact of meeting head on.Can make contact when ram force is too low, this system can accept contact current system, drives multistage air feed control relay group 13 to open high-pressure air hose opening and closing electromagnetic valve group 19, carries out the multistage air feed of work plane.Reply back contact when ram force to disconnect, this Systematical control 19 closes high-pressure air hose automatically.In addition, decompression shower nozzle 22 has a large amount of micropore, can play depressurization, airborne dust problem that what the unlatching avoiding high-pressure air hose caused meet head on.Above-mentioned situation all can be transferred to ground monitoring center with 485 communication modes through underground communica tion substation, for ventilation troubleshooting provides timely data.
This detailed description of the invention has following beneficial effect: it is for prior art defect; a set of automation protect system is devised to mining face under mine; solution coal mine downhole safety is produced; prevent gas explosion, coal-dust explosion, anthracemia, machinery from hurting sb.'s feelings; reduce dust in recovery process and, to the injury of staff, prevent the problems such as calm operation.
Claims (1)
1. underground coal mine work plane automation safety system, is characterized in that it comprises programmable logic controller 1, ram force sensor 2, firedamp sensor 3, CO sensor 4, CO
2sensor 5, temperature pick up 6, dust sensor 7, Smoke Sensor 8, far infrared nearly body protection sensor 9, Flameproof and intrinsically safe is mining ups power case 10, display unit 11, underground communica tion substation 12, multistage air feed control relay group 13, water spray control relay 14, dedusting fan start-stop control relay 15, development machine stops or other equipment plugging relaies 16, feeding switch control relay 17, aboveground Surveillance center 18, high-pressure air hose opening and closing electromagnetic valve group 19, decompression shower nozzle 20, high-pressure water pipe opening and closing electromagnetic valve 21, waterfog head 22, dust-removing blower for mine 23, development machine or miscellaneous equipment 24, mining feed switch 25, the input of described programmable logic controller 1 is connected to ram force sensor 2, firedamp sensor 3, CO sensor 4, CO
2sensor 5, temperature pick up 6, dust sensor 7, Smoke Sensor 8, far infrared nearly body protection sensor 9, Flameproof and intrinsically safe is mining ups power case 10, ram force sensor 2, firedamp sensor 3, CO sensor 4, CO
2sensor 5, temperature pick up 6, dust sensor 7, Smoke Sensor 8, all mining with the Flameproof and intrinsically safe ups power case 10 of far infrared nearly body protection sensor 9 is connected, the output of described programmable logic controller 1 is connected with display unit 11, underground communica tion substation 12, multistage air feed control relay group 13, water spray control relay 14, dedusting fan start-stop control relay 15, development machine stops or other equipment plugging relaies 16, feeding switch control relay 17, underground communica tion substation 12 is connected with aboveground Surveillance center 18, multistage air feed control relay group 13 is connected with high-pressure air hose opening and closing electromagnetic valve group 19, high-pressure air hose opening and closing electromagnetic valve group 19 connects decompression shower nozzle 20 and connects, water spray control relay 14 is connected with high-pressure water pipe opening and closing electromagnetic valve 21, high-pressure water pipe opening and closing electromagnetic valve 21 is connected with waterfog head 22, dedusting fan start-stop control relay 15 is connected with dust-removing blower for mine 23, development machine stops or other equipment plugging relaies 16 are connected with development machine and other equipment 24, feeding switch control relay 17 and mining feed switch 25, high-pressure air hose opening and closing electromagnetic valve group 19 is connected with all mining with the Flameproof and intrinsically safe ups power case 10 of high-pressure water pipe opening and closing electromagnetic valve 21.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410498309.8A CN105507941B (en) | 2014-09-26 | 2014-09-26 | Underground coal mine working face automates safety system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410498309.8A CN105507941B (en) | 2014-09-26 | 2014-09-26 | Underground coal mine working face automates safety system |
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| Publication Number | Publication Date |
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| CN105507941A true CN105507941A (en) | 2016-04-20 |
| CN105507941B CN105507941B (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410498309.8A Expired - Fee Related CN105507941B (en) | 2014-09-26 | 2014-09-26 | Underground coal mine working face automates safety system |
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Cited By (3)
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| CN110219690A (en) * | 2019-05-16 | 2019-09-10 | 中国矿业大学 | A kind of mining falling type active flame proof presses down fiery device and its application method |
| CN110700877A (en) * | 2019-11-08 | 2020-01-17 | 徐州筑之邦工程机械有限公司 | Automatic overtemperature explosion-proof water sprinkling system for underground coal mine |
| CN114087012A (en) * | 2021-11-18 | 2022-02-25 | 中国矿业大学 | Unmanned intelligent ventilation simulation experiment system and method for driving face |
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Patent Citations (5)
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| CN102251793A (en) * | 2010-05-18 | 2011-11-23 | 淮南矿业(集团)有限责任公司 | Purifying and spraying system and method for automatic spraying by using same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219690A (en) * | 2019-05-16 | 2019-09-10 | 中国矿业大学 | A kind of mining falling type active flame proof presses down fiery device and its application method |
| CN110219690B (en) * | 2019-05-16 | 2020-06-26 | 中国矿业大学 | Mining vertical falling type active explosion-proof and fire-suppression device and using method thereof |
| CN110700877A (en) * | 2019-11-08 | 2020-01-17 | 徐州筑之邦工程机械有限公司 | Automatic overtemperature explosion-proof water sprinkling system for underground coal mine |
| CN114087012A (en) * | 2021-11-18 | 2022-02-25 | 中国矿业大学 | Unmanned intelligent ventilation simulation experiment system and method for driving face |
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| Publication number | Publication date |
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| CN105507941B (en) | 2018-06-29 |
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