CN103163053A - 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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- CN103163053A CN103163053A CN2013100456768A CN201310045676A CN103163053A CN 103163053 A CN103163053 A CN 103163053A CN 2013100456768 A CN2013100456768 A CN 2013100456768A CN 201310045676 A CN201310045676 A CN 201310045676A CN 103163053 A CN103163053 A CN 103163053A
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- 239000002817 coal dust Substances 0.000 title claims abstract description 103
- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 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 9
- 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
- 239000011521 glass Substances 0.000 claims description 3
- 230000011514 reflex Effects 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 2
- 239000003245 coal Substances 0.000 abstract description 5
- 238000004891 communication Methods 0.000 abstract description 2
- 238000005286 illumination Methods 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 6
- 238000000034 method 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
- 238000005065 mining 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 that is applicable to coal dust in coal mine environment.
Technical background
colliery underground mining workplace coal dust is larger, reach certain condition and can cause explosion accident, present various dust and coal dust pick-up unit are mainly for the detection of concentration parameter, and Dust Concentration is not the accurate parameter of judgement explosion hazard, must consider the impact of its granularity, but shortage can detect the device of coal dust granularity in real time at present, and, due to the mine high humidity environment, coal dust is easy to pollute instrument, it is normal that impact detects, make the coal dust pick-up unit be difficult to automatically monitor for a long time, cause the various monitoring systems in existing colliery there is no the coal dust monitoring means.
Summary of the invention
The objective 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 infraluminescence pipe and a plurality of infrared sensor are set, solved continuous monitoring and the explosion hazard warning problem of present Dust Concentration and granularity.
For achieving the above object, infrared coal dust pick-up unit of the present invention, comprise the coal dust test chamber, described coal dust test chamber is the hollow cylinder cavity that two ends communicate with external environment condition, have two circular holes by 12 of clock and 9 positions on the cross section of coal dust test chamber inwall center, two circular holes are provided with two infrared tube light pipes, on the inwall of the coal dust test chamber on each infrared tube light pipe opposite, a circular hole are arranged respectively, respectively are provided with an infrared sensor on circular hole; Described two infrared tube light pipes longitudinally respectively are distributed with a circular hole on the coal dust test chamber of both sides, be respectively equipped with an infrared sensor on each circular hole, described each infrared sensor is divided into two groups and is 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 with respectively automatic cleaning device, display, warning circuit and telecommunication circuit.
Be equipped with organic glass protection lens on each circular hole of described coal dust test chamber; Described automatic cleaning device comprises the rotary sweeper that is located in the coal dust test chamber, is located at coal dust test chamber outer stepper motor 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 the driven rotary swabbing pig rotates on the sidewall of coal dust test chamber.
a kind of infrared coal dust detection method of using the above device, pick-up unit is placed in the coal dust environment, launch infrared light by two infraluminescence pipes that are positioned at 9 and ten two positions to the circular hole on the coal dust test chamber, when in coal dust test chamber body during without coal dust, receive infrared light with two infrared sensors of position, two infraluminescence pipe opposites, when in coal dust test chamber body, coal dust being arranged, the infrared light that the infraluminescence pipe produces can produce transmission and reflex, thereby the infrared light after making transmission and reflecting is by except the infrared sensor with two infraluminescence pipe relative positions receives, the infrared sensor of two infraluminescence pipe both sides also can detect the infrared light of refraction and the infrared light of reflection, each infrared sensor will detect information exchange and cross signal preprocessor and carry out fusion treatment, signal after fusion treatment is sent in microprocessor, thereby will detect by microprocessor concentration and the granularity that information and predefined information are compared and detected coal dust, and judge according to predefined Dust Concentration and the granularity influence degree to explosion hazard, be 0.75 μ m～1mm when detecting the described scope of coal dust granularity, 0.30 when～0.75 μ m or 0.10～0.30 μ m, corresponding Dust Concentration threshold value 〉=50g/m3, 〉=40g/m3 or 〉=30g/m3, show by display respectively, warning circuit is reported to the police, the telecommunication circuit signal transmission is reminded the danger of environment coal dust explosion.
beneficial effect: owing to having adopted such scheme, two infraluminescence pipes and a plurality of infrared sensor are set, mutually vertical on two infraluminescence pipes produce the infrared light space in the coal dust test chamber, be distributed in the upper of coal dust test chamber, transmission principle and principle of reflection by the Infrared irradiation coal dust, can monitor for a long time easily concentration and the granularity of coal dust in high humidity environment, solved the problem of present mine coal dust concentration and granularity continuous monitoring by infraluminescence pipe and a plurality of infrared sensor that arranges, can be by the parameter of Colliery Safety Supervise System Real-Time Monitoring environment coal dust, danger to coal dust explosion judges and early warning, avoid the generation of explosion accident, ensure the safety in production in colliery.It is simple in structure, and is easy to operate, and result of use is good.Has practicality widely.
Description of drawings
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; The 3-infrared sensor; The 4-signal preprocessor; The 5-microprocessor; The 6-automatic cleaning device; The 7-display; The 8-warning circuit; The 9-telecommunication circuit; The 10-motor driver; The 11-stepper motor; The 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, the hollow cylinder cavity that described coal dust test chamber 2 communicates with external environment condition for two ends, as shown in Figure 2, the hollow cylinder cavity that described coal dust test chamber 2 communicates with external environment condition for two ends, have two circular holes by 12 of clock and 9 positions on the cross section of coal dust test chamber 2 inwalls centers, two circular holes are provided with two infrared tube light pipes 1, on the inwall of the coal dust test chamber 2 on each infrared tube light pipe 1 opposite, a circular hole is arranged respectively, respectively be provided with an infrared sensor 3 on circular hole, be equipped with organic glass protection lens on each circular hole of described coal dust test chamber 2.Described two infrared tube light pipes 1 longitudinally respectively are distributed with a circular hole on the coal dust test chamber 2 of both sides, be respectively equipped with an infrared sensor 3 on each circular hole, described 6 infrared sensors 3 are divided into two groups and are connected with two signal preprocessors 4 respectively, infrared sensor 3 numbers of two signal preprocessor 4 connections are 3, the output terminal of two signal preprocessors 4 is connected with microprocessor 5 respectively, and the output terminal of microprocessor 5 is connected with respectively automatic cleaning device 6, display 7, warning circuit 8 and telecommunication circuit 9.Described automatic cleaning device 6 is made of rotary sweeper 12, stepper motor 10 and motor driver 11, wherein rotary sweeper 12 be arranged on coal dust test chamber 2 in, 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, can rotate on adjacent coal dust test chamber 2 sidewalls of driven rotary swabbing pig 12, can clean aperture lens on coal seam test chamber 2 perisporiums by the rotation of rotary sweeper 12.The model of described infrared sensor 3 is G8370, described signal preprocessor 4 is ATMEGA16 for built-in 5 models of microprocessor, the model LR430LC9601 liquid crystal display of display 7, telecommunication circuit adopts CAN bus or 485 or wireless communication module, be convenient to access monitoring network, transfer to the ground monitoring center and monitor; What display showed is Dust Concentration and two kinds of parameters of granularity.
A kind of infrared coal dust detection method of using said apparatus: with pick-up unit put with the coal dust environment in, use infraluminescence pipe 1 to launch infrared lights by the protection lens on coal dust test chamber 2 to the infrared sensor 3 that is arranged on the pairing of protection lens right opposite, when in coal dust test chamber 2 bodies during without coal dust, receive infrared light with two infrared sensors 3 of two infraluminescence pipe 1 relative positions; When in coal dust test chamber 2 bodies, coal dust being arranged, the infrared light that infraluminescence pipe 1 produces can produce transmission and reflex, thereby the infrared light after transmission and reflection is received except the infrared sensor 3 with 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 the infrared light of transmission and reflection, the detection information exchange can be crossed signal preprocessor 4 and carry out fusion treatment, signal after fusion treatment is sent in microprocessor 5, thereby will detect by microprocessor 5 concentration and the granularity that information and predefined information are compared and detected coal dust, and judge according to predefined Dust Concentration and the granularity influence degree to explosion hazard.
Because the uncertain factor that affects coal dust explosion hazard is more, therefore need to be on the basis of Dust Concentration and grain size parameter, judge explosion hazard and report to the police with a formula or algorithm, the present invention adopts a simple and practical fragmentation threshold alarm method.The 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, surpass this threshold value and just send alerting signal.The Dust Concentration threshold value of the subregion of coal dust granularity and warning is as shown in the table.
When detecting the described scope of coal dust granularity and be 0.75 μ m～1mm, 0.30～0.75 μ m or 0.10～0.30 μ m corresponding Dust Concentration threshold value 〉=50g/m3, 〉=40g/m3 or 〉=30g/m3 reports to the police respectively, reminds the danger of environment coal dust explosion.
Fig. 2 is infraluminescence pipe and infrared sensor scheme of installation in device of the present invention, what show is the vertical view of coal dust test chamber 2, all infraluminescence pipes 1 and infrared sensor 3 be installed in coal dust test chamber 2 around, the intermediate space of coal dust test chamber 2 is tested coal dusts.The cross section that hits exactly on coal dust test chamber 2 inwalls is provided with two circular holes by 12 of the twelve-hour position and 9 positions, be provided with two infrared tube light pipes 1, on coal dust test chamber 2 inwalls on the opposite of each infrared tube light pipe 1, a circular hole is arranged respectively, respectively be provided with infrared sensor 3; Each infrared tube light pipe 1 is along vertical inwall of coal dust test chamber 2, the both sides of infrared tube light pipe 12 circular holes that respectively distributing relatively, 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 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 12 rotations of driven rotary swabbing pig.Rotary sweeper is by cleaning bar construction on a rotatable endless belt, the cleaning rod is upper with hairbrush, when stepper motor 11 driven rotary swabbing pig 12 rotation, the cleaning rod can paste coal dust test chamber 2 inwalls and clean, the clear coal dust that is bonded on infraluminescence pipe and infrared sensor transparent window.
Claims (4)
1. one kind infrared coal dust pick-up unit, it is characterized in that: it comprises coal dust test chamber (2), the hollow cylinder cavity that described coal dust test chamber (2) communicates with external environment condition for two ends, have two circular holes by 12 of clock and 9 positions on the cross section of coal dust test chamber (2) inwall center, two circular holes are provided with two infrared tube light pipes (1), on the inwall of the coal dust test chamber (2) on each infrared tube light pipe (1) opposite, a circular hole is arranged respectively, respectively be provided with an infrared sensor (3) on circular hole, described two infrared tube light pipes (1) longitudinally respectively are distributed with a circular hole on the coal dust test chamber (2) of both sides, be respectively equipped with an infrared sensor (3) on each circular hole, described each infrared sensor (3) is divided into two groups and is 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 with respectively automatic cleaning device (6), display (7), warning circuit (8) and telecommunication circuit (9).
2. infrared coal dust pick-up unit according to claim 1, is characterized in that: be equipped with organic glass protection lens on each circular hole of described coal dust test chamber (2).
3. infrared coal dust pick-up unit according to claim 1 and 2, it is characterized in that: described automatic cleaning device (6) comprises the rotary sweeper (12) that is located in coal dust test chamber (2), be located at coal dust test chamber (2) outer stepper motor (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), driven rotary swabbing pig (12) rotates on the sidewall of coal dust test chamber (2).
4. a right to use requires the infrared coal dust detection method of device described in 1, it is characterized in that: pick-up unit is placed in the coal dust environment, launch infrared light by two the infraluminescence pipes (1) that are positioned at 9 and ten two positions to the circular hole on coal dust test chamber (2), when in coal dust test chamber (2) body during without coal dust, receive infrared light with two infrared sensors (3) of two infraluminescence pipes (1) positions, opposite, when in coal dust test chamber (2) body, coal dust being arranged, the infrared light that infraluminescence pipe (1) produces can produce transmission and reflex, thereby the infrared light after making transmission and reflecting is by except the infrared sensor (3) with two infraluminescence pipes (1) relative position receives, the infrared sensor (3) of two infraluminescence pipes (1) both sides also can detect the infrared light of refraction and the infrared light of reflection, each infrared sensor (3) will detect information exchange and cross signal preprocessor (4) and carry out fusion treatment, signal after fusion treatment is sent in microprocessor (5), by microprocessor (5) thus will detect information and concentration and granularity that predefined information is compared and detected coal dust, and judge according to predefined Dust Concentration and the granularity influence degree to explosion hazard, be 0.75 μ m～1mm when detecting the described scope of coal dust granularity, 0.30 when～0.75 μ m or 0.10～0.30 μ m, corresponding Dust Concentration threshold value 〉=50g/m3, 〉=40g/m3 or 〉=30g/m3, show by display respectively, warning circuit is reported to the police, the telecommunication circuit signal transmission is reminded the danger of environment coal dust explosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| CN103163053A true CN103163053A (en) | 2013-06-19 |
| CN103163053B CN103163053B (en) | 2015-04-01 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105572003A (en) * | 2014-11-10 | 2016-05-11 | 江苏美的清洁电器股份有限公司 | Control method of dust concentration detection component for dust collector |
| 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 |
| WO2018153015A1 (en) * | 2017-02-23 | 2018-08-30 | 深圳市易特科信息技术有限公司 | Device and method for issuing an alarm when indoor air dust content exceeds standard |
| CN111624140A (en) * | 2020-05-18 | 2020-09-04 | 武汉理工大学 | Device and method for measuring distribution of pulverized coal leakage flow field |
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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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