CN103163053B - Infrared detection device and detection method of coal dust - Google Patents
Infrared detection device and detection method of coal dust Download PDFInfo
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- CN103163053B CN103163053B CN201310045676.8A CN201310045676A CN103163053B CN 103163053 B CN103163053 B CN 103163053B CN 201310045676 A CN201310045676 A CN 201310045676A CN 103163053 B CN103163053 B CN 103163053B
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- coal dust
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- 239000002817 coal dust Substances 0.000 title claims abstract description 101
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 238000004880 explosion Methods 0.000 claims abstract description 15
- 238000004140 cleaning Methods 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims description 47
- 239000000428 dust Substances 0.000 claims description 13
- 241001417527 Pempheridae Species 0.000 claims description 12
- 230000004927 fusion Effects 0.000 claims description 6
- 238000002834 transmittance Methods 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 2
- 239000003245 coal Substances 0.000 abstract description 6
- 238000004891 communication Methods 0.000 abstract description 2
- 238000005286 illumination Methods 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The invention provides an infrared detection device and a detection method of coal dust and belongs to the detection methods and devices of coal mine environment. The infrared detection device of the coal dust is composed of two infrared luminescent tubes, a plurality of infrared sensors, a coal dust detection cavity, a cleaning device, a signal preprocessor, an information integration processor, a displayer, a memorizer, a communication circuit and an alarm circuit, wherein infrared lights generated by the two infrared luminescent tubes are perpendicular to each other on the space of the coal dust detection cavity, and the infrared sensors are distributed on the coal dust detection cavity. The concentration and the granularity of the coal dust are detected according to the transmission principle and the reflection principle of illumination of the infrared light on the coal dust. The risk of explosion of the coal dust is judged according to the influence degree of the concentration and the granularity of the coal dust on the risk of the explosion, and alarm is given. The infrared detection device and the detection method of the coal dust are appropriate for detection of the coal mine safe environment.
Description
Technical field
The present invention relates to a kind of infrared coal dust pick-up unit and method, especially a kind of infrared coal dust pick-up unit and method being applicable to coal dust in coal mine environment.
Technical background
Underground coal mine exploitation workplace coal dust is larger, reach certain condition and can cause explosion accident, current various dust and coal dust pick-up unit are mainly for the detection of concentration parameter, and Dust Concentration is not the accurate parameter judging explosion hazard, the impact of its granularity must be considered, but lack the device that can detect coal dust granularity in real time at present, and, due to mine high humidity environment, coal dust is easy to pollute instrument, it is normal that impact detects, coal dust pick-up unit is made to be difficult to automatically monitor for a long time, the various monitoring systems in existing colliery are caused not have coal dust monitoring means.
Summary of the invention
The object of the invention is to overcome the deficiency in prior art, a kind of infrared coal dust pick-up unit and method are provided, by arranging infraluminescence pipe and multiple infrared sensor, solving continuous monitoring and the explosion hazard warning problem of current Dust Concentration and granularity.
For achieving the above object, infrared coal dust pick-up unit of the present invention, comprise coal dust test chamber, described coal dust test chamber is the hollow cylinder cavity that two ends communicate with external environment condition, the cross section of coal dust test chamber inwall center has two circular holes by and 9 positions at 12 of clock, two circular holes are provided with two infrared tube light pipes, the inwall of the coal dust test chamber on each infrared tube light pipe opposite respectively has a circular hole, circular hole is respectively provided with an infrared sensor; The coal dust test chamber of described two infrared tube light pipes longitudinally both sides is respectively distributed with a circular hole, each circular hole is respectively equipped with an infrared sensor, each described infrared sensor is divided into two groups to be connected with two signal preprocessors respectively, the infrared sensor number of two signal preprocessor connections is identical, the output terminal of two signal preprocessors is connected with microprocessor respectively, and the output terminal of microprocessor is connected to automatic cleaning device, display, warning circuit and telecommunication circuit.
Each circular hole of described coal dust test chamber is equipped with organic glass protection lens; Described automatic cleaning device comprises the rotary sweeper be located in coal dust test chamber, be located at stepper motor outside coal dust test chamber and motor driver, the output terminal of the input termination microprocessor of motor driver, motor driver connects stepper motor, stepper motor is connected by gear with rotary sweeper, and driven rotary swabbing pig rotates on the sidewall of coal dust test chamber.
A kind of infrared coal dust detection method using described device, pick-up unit is placed in coal dust environment, infrared light is launched to the circular hole on coal dust test chamber by two the infraluminescence pipes being positioned at 9 and ten two positions, when in coal dust test chamber body without coal dust time, receive infrared light with two infrared sensors of two infraluminescence pipe opposite side, when there being coal dust in coal dust test chamber body, the infrared light that infraluminescence pipe produces can produce transmittance and reflectance phenomenon, thus make the infrared light after transmittance and reflectance by except receiving with the infrared sensor of two infraluminescence pipe relative positions, the infrared sensor of two infraluminescence pipe both sides also can detect the infrared light of refraction and the infrared light of reflection, Detection Information is carried out fusion treatment by signal preprocessor by each infrared sensor, signal after fusion treatment is sent in microprocessor, by microprocessor, Detection Information and the information preset are compared thus detected concentration and the granularity of coal dust, and according to the Dust Concentration preset and granularity, the influence degree to explosion hazard judges, when detecting that scope described in coal dust granularity is 0.75 μm ~ 1mm, 0.30 ~ 0.75 μm or 0.10 ~ 0.30 μm time, corresponding Dust Concentration threshold value >=50g/m3, >=40g/m3 or >=30g/m3, then show respectively by display, warning circuit is reported to the police, telecommunication circuit signal transmission reminds the danger of environment coal dust explosion.
Beneficial effect: owing to have employed such scheme, two infraluminescence pipes and multiple infrared sensor are set, spatially mutually vertical in coal dust test chamber of the infrared light that two infraluminescence pipes produce, be distributed in the upper of coal dust test chamber, by transmission principle and the principle of reflection of Infrared irradiation coal dust, concentration and the granularity of coal dust can be monitored easily for a long time in high humidity environment, the problem that current mine coal dust concentration and granularity monitor continuously is solved by the infraluminescence pipe that arranges and multiple infrared sensor, can by the parameter of Colliery Safety Supervise System Real-Time Monitoring environment coal dust, the danger of coal dust explosion is judged and early warning, avoid the generation of explosion accident, ensure the safety in production in colliery.Its structure is simple, and easy to operate, result of use is good.There is practicality widely.
Accompanying drawing explanation
Fig. 1 is the principle assumption diagram of apparatus of the present invention;
Fig. 2 is infraluminescence pipe and infrared sensor position view in apparatus of the present invention;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is automatic cleaning device structural representation in apparatus of the present invention.
In figure, 1-infraluminescence pipe; 2-coal dust test chamber; 3-infrared sensor; 4-signal preprocessor; 5-microprocessor; 6-automatic cleaning device; 7-display; 8-warning circuit; 9-telecommunication circuit; 10-motor driver; 11-stepper motor; 12-rotary sweeper.
Embodiment
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
As shown in Figure 1, infrared coal dust pick-up unit of the present invention comprises coal dust test chamber 2, described coal dust test chamber 2 is the hollow cylinder cavity that two ends communicate with external environment condition, as shown in Figure 2, described coal dust test chamber 2 is the hollow cylinder cavity that two ends communicate with external environment condition, the cross section of coal dust test chamber 2 inwall center has two circular holes by and 9 positions at 12 of clock, two circular holes are provided with two infrared tube light pipes 1, the inwall of the coal dust test chamber 2 on each infrared tube light pipe 1 opposite respectively there is a circular hole, circular hole is respectively provided with an infrared sensor 3, each circular hole of described coal dust test chamber 2 is equipped with organic glass protection lens.The coal dust test chamber 2 of described two infrared tube light pipes 1 longitudinally both sides is respectively distributed with a circular hole, each circular hole is respectively equipped with an infrared sensor 3,6 described infrared sensors 3 are divided into two groups to be connected with two signal preprocessors 4 respectively, infrared sensor 3 number of two signal preprocessor 4 connections is 3, the output terminal of two signal preprocessors 4 is connected with microprocessor 5 respectively, and the output terminal of microprocessor 5 is connected to automatic cleaning device 6, display 7, warning circuit 8 and telecommunication circuit 9.Described automatic cleaning device 6 is made up of rotary sweeper 12, stepper motor 10 and motor driver 11, wherein rotary sweeper 12 is arranged in coal dust test chamber 2, the output terminal of the input termination microprocessor 4 of motor driver 11, the output of motor driver 11 connects stepper motor 10, stepper motor 10 is connected by gear with rotary sweeper 12, driven rotary swabbing pig 12 adjacent coal dust test chamber 2 sidewall can rotate, the aperture lens on coal seam test chamber 2 perisporium can be cleaned by the rotation of rotary sweeper 12.The model of described infrared sensor 3 is G8370, described signal preprocessor 4 is built-in 5 models of microprocessor is ATMEGA16, the model LR430LC9601 liquid crystal display of display 7, telecommunication circuit adopts CAN or 485 or wireless communication module, be convenient to access monitoring network, transfer to ground monitoring center and monitor; What display showed is Dust Concentration and granularity two kinds of parameters.
A kind ofly use the infrared coal dust detection method of said apparatus: put by pick-up unit with coal dust environment, infraluminescence pipe 1 is used to launch infrared light by the protection lens on coal dust test chamber 2 to the infrared sensor 3 being arranged on the pairing of protection lens right opposite, when in coal dust test chamber 2 body without coal dust time, receive infrared light with two infrared sensors 3 of two infraluminescence pipe 1 relative positions; When there being coal dust in coal dust test chamber 2 body, the infrared light that infraluminescence pipe 1 produces can produce transmittance and reflectance phenomenon, thus makes the infrared light after transmittance and reflectance by except receiving with the infrared sensor 3 of two infraluminescence pipe 1 relative positions; 4 infrared sensors 3 of two infraluminescence pipe 1 both sides also can detect the infrared light of refraction and the infrared light of reflection, after 6 infrared sensors 3 detect the infrared light of transmission and the infrared light of reflection, Detection Information can be carried out fusion treatment by signal preprocessor 4, signal after fusion treatment is sent in microprocessor 5, by microprocessor 5, Detection Information and the information preset are compared thus detected concentration and the granularity of coal dust, and the influence degree to explosion hazard judges according to the Dust Concentration preset and granularity.
Because the uncertain factor affecting coal dust explosion hazard is more, therefore do not need on the basis of Dust Concentration and grain size parameter, judge explosion hazard with a formula or algorithm and report to the police, the present invention adopts a simply fragmentation threshold alarm method for practicality.Coal dust grain size parameter is divided into 3 segment limits, the alarm threshold value of a Dust Concentration is set in every segment limit, exceed this threshold value and just send alerting signal.The subregion of coal dust granularity and the Dust Concentration threshold value of warning as shown in the table.
When the scope described in coal dust granularity that detects be 0.75 μm ~ 1mm, 0.30 ~ 0.75 μm or 0.10 ~ 0.30 μm time corresponding Dust Concentration threshold value >=50g/m3, >=40g/m3 or >=30g/m3 then report to the police respectively, remind the danger of environment coal dust explosion.
Fig. 2 is infraluminescence pipe and infrared sensor scheme of installation in device of the present invention, display be the vertical view of coal dust test chamber 2, all infraluminescence pipes 1 and infrared sensor 3 are installed in coal dust test chamber 2 around, and the intermediate space of coal dust test chamber 2 is tested coal dusts.The cross section that coal dust test chamber 2 inwall hits exactly is provided with two circular holes by 12 of twelve-hour position and 9 positions, be provided with two infrared tube light pipes 1, coal dust test chamber 2 inwall on the opposite of each infrared tube light pipe 1 respectively there is a circular hole, is respectively provided with infrared sensor 3; Each infrared tube light pipe 1 is along longitudinal inwall of coal dust test chamber 2, and the both sides of relative infrared tube light pipe 1 are respectively dispersed with 2 circular holes, and each circular hole is provided with infrared sensor 3.
Fig. 4 is automatic cleaning device structural drawing in device of the present invention, and automatic cleaning device 6 is made up of motor driver 10, stepper motor 11 and rotary sweeper 12.The input of motor driver 10 connects the output terminal of total processor 5, and the output of motor driver 10 connects stepper motor 11, and stepper motor 11 is connected by gear with rotary sweeper 12, can rotate by driven rotary swabbing pig 12.Rotary sweeper is by a cleaning bar construction on a rotatable endless belt, with hairbrush on cleaning rod, when stepper motor 11 driven rotary swabbing pig 12 rotates, cleaning rod can against coal dust test chamber 2 inwall and clean, the clear coal dust be bonded on infraluminescence pipe and infrared sensor transparent window.
Claims (1)
1. one kind infrared coal dust pick-up unit, comprise coal dust test chamber (2), infrared sensor (3), signal preprocessor (4), microprocessor (5), it is characterized in that: the hollow cylinder cavity that described coal dust test chamber (2) communicates with external environment condition for two ends, the cross section of coal dust test chamber (2) inwall center has two circular holes by and 9 positions at 12 of clock, two circular holes are provided with two infrared tube light pipes (1), the inwall of the coal dust test chamber (2) on each infrared tube light pipe (1) opposite respectively there is a circular hole, circular hole is respectively provided with an infrared sensor (3), each circular hole of described coal dust test chamber (2) is equipped with organic glass protection lens, the coal dust test chamber (2) of described two infrared tube light pipes (1) longitudinally both sides is respectively distributed with a circular hole, each circular hole is respectively equipped with an infrared sensor (3), 6 infrared sensors (3) are divided into two groups to be connected with two signal preprocessors (4) respectively, infrared sensor (3) number that two signal preprocessors (4) connect is identical, the output terminal of two signal preprocessors (4) is connected with microprocessor (5) respectively, the output terminal of microprocessor (5) is connected to automatic cleaning device (6), display (7), warning circuit (8) and telecommunication circuit (9), described automatic cleaning device (6) comprises the rotary sweeper (12) be located in coal dust test chamber (2), is located at coal dust test chamber (2) stepper motor outward (11) and motor driver (10), the output terminal of the input termination microprocessor (4) of motor driver (10), motor driver (10) connects stepper motor (11), stepper motor (11) is connected by gear with rotary sweeper (12), and driven rotary swabbing pig (12) rotates on the sidewall of coal dust test chamber (2).
2. one kind uses the infrared coal dust detection method of device described in claim 1, it is characterized in that: pick-up unit is placed in coal dust environment, infrared light is launched to the circular hole on coal dust test chamber (2) by two the infraluminescence pipes (1) being positioned at 9 and ten two positions, when in coal dust test chamber (2) body without coal dust time, receive infrared light with two infrared sensors (3) of two infraluminescence pipe (1) opposite side, when there being coal dust in coal dust test chamber (2) body, the infrared light that infraluminescence pipe (1) produces can produce transmittance and reflectance phenomenon, thus make the infrared light after transmittance and reflectance by except receiving with the infrared sensor (3) of two infraluminescence pipe (1) relative positions, 4 infrared sensors (3) of two infraluminescence pipe (1) both sides also can detect the infrared light of refraction and the infrared light of reflection, after 6 infrared sensors (3) detect the infrared light of transmission and the infrared light of reflection, Detection Information can be carried out fusion treatment by signal preprocessor (4), signal after fusion treatment is sent in microprocessor (5), by microprocessor (5), Detection Information and the information preset are compared thus detected concentration and the granularity of coal dust, and according to the Dust Concentration preset and granularity, the influence degree to explosion hazard judges, when detecting that coal dust granularity is 0.75 μm ~ 1mm, 0.30 ~ 0.75 μm or 0.10 ~ 0.30 μm time, corresponding Dust Concentration threshold value >=50g/m3, >=40g/m3 or >=30g/m3, then show respectively by display, warning circuit is reported to the police, telecommunication circuit signal transmission reminds the danger of environment coal dust explosion.
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| CN201310045676.8A CN103163053B (en) | 2013-02-05 | 2013-02-05 | Infrared detection device and detection method of coal dust |
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| CN201310045676.8A CN103163053B (en) | 2013-02-05 | 2013-02-05 | Infrared detection device and detection method of coal dust |
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| CN103163053B true CN103163053B (en) | 2015-04-01 |
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| CN105572003B (en) * | 2014-11-10 | 2018-10-19 | 江苏美的清洁电器股份有限公司 | The control method of dust concentration detection components for dust catcher |
| CN105547930A (en) * | 2015-12-04 | 2016-05-04 | 上海同化新材料科技有限公司 | Detector for powder material raising dust and detection method thereof |
| CN106092844A (en) * | 2016-07-06 | 2016-11-09 | 中国计量大学 | A kind of dust concentration remote monitoring device |
| CN106153645A (en) * | 2016-08-31 | 2016-11-23 | 北京华科拓普电子仪器有限公司 | A kind of passive ash measures system and method |
| RU2626602C1 (en) * | 2016-10-26 | 2017-07-28 | Федеральное бюджетное учреждение науки "Екатеринбургский медицинский-научный центр профилактики и охраны здоровья рабочих промпредприятий" Федеральной службы по надзору в сфере защиты прав потребителей и благополучия человека (ФБУН ЕМНЦ ПОЗРПП Роспотребнадзора) | Method of quantitative determining coal dust in atmospheric air |
| CN106872323A (en) * | 2017-02-23 | 2017-06-20 | 深圳市易特科信息技术有限公司 | Room air dust content super-standard alarm device and method |
| CN111624140B (en) * | 2020-05-18 | 2021-08-17 | 武汉理工大学 | Device and method for measuring distribution of pulverized coal leakage flow field |
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2013
- 2013-02-05 CN CN201310045676.8A patent/CN103163053B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1224363A (en) * | 1996-07-01 | 1999-07-28 | 法玛西雅和厄普约翰公司 | Delivery device and method for its operation |
| WO2001059737A1 (en) * | 2000-02-10 | 2001-08-16 | Martin Terence Cole | Improvements relating to smoke detectors particularly ducted smoke detectors |
| CN201908690U (en) * | 2010-12-14 | 2011-07-27 | 张建华 | Novel downhole gas positioning monitor system |
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Inventor after: Tong Ziyuan Inventor after: Zhang Panpan Inventor after: Tong Minming Inventor after: Li Meng Inventor after: Ren Zihui Inventor after: Liang Xiangnan Inventor after: Liu Bichao Inventor after: Meng Wen Inventor after: Xu Yankun Inventor after: Gu Yanxiang Inventor before: Tong Ziyuan Inventor before: Tong Minming Inventor before: Tang Shoufeng Inventor before: Ren Zihui |
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Free format text: CORRECT: INVENTOR; FROM: TONG ZIYUAN TONG MINMING TANG SHOUFENG REN ZIHUI TO: TONG ZIYUAN TONG MINMING LI MENG REN ZIHUI LIANG XIANGNAN LIU BICHAO MENG WEN XU YANKUN GU YANXIANG ZHANG PANPAN |
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Effective date of registration: 20160621 Address after: 221116 Research Institute, China University of Mining and Technology, Xuzhou University, Jiangsu, China, Patentee after: China University of Mining & Technology Patentee after: CHINA UNIVERSITY OF MINING & TECHNOLOGY TECHNOLOGY DEVELOPMENT (XUZHOU) GENERAL CO., LTD. Address before: 221116 Research Institute, China University of Mining and Technology, Xuzhou University, Jiangsu, China, Patentee before: China University of Mining & Technology |
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