CN206362673U - Mining dual-wavelength laser sensor of dust concentration - Google Patents
Mining dual-wavelength laser sensor of dust concentration Download PDFInfo
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- CN206362673U CN206362673U CN201621389685.4U CN201621389685U CN206362673U CN 206362673 U CN206362673 U CN 206362673U CN 201621389685 U CN201621389685 U CN 201621389685U CN 206362673 U CN206362673 U CN 206362673U
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- light source
- detection light
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- dust concentration
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Abstract
The utility model is related to a kind of mining dual-wavelength laser sensor of dust concentration, including housing, light source control unit, the main detection light source of light source control unit control and auxiliary detection light source, and feature is：Main detection light source and auxiliary detect that the pulse laser that light source is sent reaches photodetector, the saturating implosion guard of height of the photodetector front end provided with plating water proof and dust proof film by the air chamber with air inlet, gas outlet and aspiration pump.It can realize and be arranged in underworkings and working face, with reference to dust concentration detecting method, the change of monitor underground different location dust in air thing concentration, and accuracy of detection is improved, so as to provide effective data support to solve the Mine Dust problem of preventing and treating.
Description
Technical field
The utility model is related to a kind of laser particle count device, is related to a kind of mining dust concentration detection means, especially
It is related to a kind of dual-wavelength laser sensor of dust concentration.
Background technology
With the development of modern science and technology, the raising of Coal Mining Technology, the annual coal mining amount in the whole world is all constantly
Increase.So that colliery is in mining operations, the Dust Capacity that the sessions such as rock drilling, explosion, broken, handling, transport are produced all exists
Increase considerably.Coal dust belongs to dust, influences mine safety production, threatens worker healthy, is one of big disaster in colliery 5.
The environment of severe contamination Work places, the dust deposit flown upward also has the danger of blast in tunnel.In the feelings without dust prevention
Under condition, a large amount of dust is produced during coal mining, makes the dust content in air excessive, has seriously exceeded state health standards.Coal
Miberal powder dirt disaster causes massive losses to country, society and the mankind.Peace is had become for dust detection in mine air
Full production, the key for ensureing operator's safety.
The physical detection methods of forefront are mainly exploitation and application in terms of light scattering, the transmission both at home and abroad at present,
By many research and inquirement, optical theory detection is carried out in ecotopia has good development prospect；In light scattering
On the basis of technology, although the laser dust concentration sensor of exploitation design has begun to commercially use and promote, still
Also there are many jejune aspects at present, such as how solving the influence of grass, how to improve the inspection of detecting instrument system
Precision and stability is surveyed, the problem of rationally, accurately detect that detecting that output is primary in real time as colliery solves.
Utility model content
The purpose of this utility model is that there is provided a kind of time-sharing multiplex type dual-wavelength laser dust biography in order to solve the above problems
Sensor, it is possible to achieve be arranged in underworkings and working face, monitor underground different location dust in air thing is dense
The change of degree, and accuracy of detection is improved, so as to provide effective data support to solve the Mine Dust problem of preventing and treating.
The technical solution adopted in the utility model is：A kind of mining dual-wavelength laser sensor of dust concentration, including housing,
Light source control unit, the main detection light source of light source control unit control and auxiliary detection light source, feature are：It is main to detect light source and auxiliary
The pulse laser for helping detection light source to send reaches photodetector, light by the air chamber with air inlet, gas outlet and aspiration pump
The saturating implosion guard of height of the electric explorer front end provided with plating water proof and dust proof film.
Wherein：3 lines of main detection light source and auxiliary detection light source and photodetector constitute isosceles triangle, light source
Control unit selects arm processor.
Wherein：Main detection light source is from the pulsed laser light source that wavelength is 630nm, and auxiliary detects that light source is from wavelength
450nm pulsed laser light source.
Readily appreciate the dust concentration detecting method for introducing mining dual-wavelength laser sensor of dust concentration.
A kind of dust concentration detecting method of mining dual-wavelength laser sensor of dust concentration, feature is：Main detection light
Source 1, auxiliary detection light source 2 timesharing collaboration be luminous to cause photodetector 3, and photodetector 3 is by the data storage cell that electrically connects
After record data, timesharing dust concentration C is obtained as follows,
Wherein：C is timesharing dust concentration, milli grams m3；λ1It is main detection optical source wavelength, rice；I1It is that main detection light source is sent
The light intensity of laser, candela；I′1It is that the main detection light source that photodetector is received sends the light intensity of laser, candela；λ2It is
Auxiliary detection optical source wavelength, rice；I2It is the light intensity that auxiliary detection light source sends laser, candela；I′2It is that photodetector is received
To auxiliary detection light source send the light intensity of laser, candela；ρ is soot density to be measured, kg/m3；L is light path, rice；kext
It is extinction coefficient.
Completed after above method programming by arm processor.
The beneficial effects of the utility model are：A kind of mining dual-wavelength laser dust concentration that the utility model is provided is passed
Sensor, it is possible to achieve be arranged in underworkings and working face, with reference to dust concentration detecting method, monitor underground is not
With the change of place dust in air thing concentration, and improve accuracy of detection, thus for solve Mine Dust prevent and treat problem and
Effective data are provided to support.
Brief description of the drawings
Fig. 1 the utility model structural representations；
Fig. 2 the utility model principle schematics.
1. main detection light source in figure, 2. auxiliary detection light sources, 3. photodetectors, 4. air chambers, 5. housings, 6. is high thoroughly explosion-proof
Glass, 7. gas outlets and aspiration pump, 8. air inlets.
Embodiment
First embodiment
Referring to Fig. 1, Fig. 2, a kind of mining dual-wavelength laser sensor of dust concentration, including housing 5, light source control unit,
The main detection light source 1 of light source control unit control and auxiliary detection light source 2, feature is：Main detection light source 1 and auxiliary detection light source
2 pulse lasers sent reach photodetector 3, photodetection by the air chamber 4 with air inlet 8, gas outlet and aspiration pump 7
The saturating implosion guard 6 of height of the front end of device 3 provided with plating water proof and dust proof film.
Second embodiment
Referring to Fig. 1, Fig. 2, a kind of mining dual-wavelength laser sensor of dust concentration, including housing 5, light source control unit,
The main detection light source 1 of light source control unit control and auxiliary detection light source 2, feature is：Main detection light source 1 and auxiliary detection light source
2 pulse lasers sent reach photodetector 3, photodetection by the air chamber 4 with air inlet 8, gas outlet and aspiration pump 7
The saturating implosion guard 6 of height of the front end of device 3 provided with plating water proof and dust proof film.
Wherein：3 three lines of main detection light source 1 and auxiliary detection light source 2 and photodetector constitute isosceles triangle, light
Source control unit selects arm processor.
3rd embodiment
Referring to Fig. 1, Fig. 2, a kind of mining dual-wavelength laser sensor of dust concentration, including housing 5, light source control unit,
The main detection light source 1 of light source control unit control and auxiliary detection light source 2, feature is：Main detection light source 1 and auxiliary detection light source
2 pulse lasers sent reach photodetector 3, photodetection by the air chamber 4 with air inlet 8, gas outlet and aspiration pump 7
The saturating implosion guard 6 of height of the front end of device 3 provided with plating water proof and dust proof film.
Wherein：3 three lines of main detection light source 1 and auxiliary detection light source 2 and photodetector constitute isosceles triangle, light
Source control unit selects arm processor.
Wherein：Main detection light source 1 is from the pulsed laser light source that wavelength is 630nm, and auxiliary detects that light source 2 is from wavelength
450nm pulsed laser light source.
Claims (4)
1. a kind of mining dual-wavelength laser sensor of dust concentration, including housing, light source control unit, light source control unit control
Main detection light source and auxiliary detection light source, are characterised by：The pulse laser that main detection light source and auxiliary detection light source are sent passes through
Air chamber with air inlet, gas outlet and aspiration pump reaches photodetector, and photodetector front end is provided with plating water proof and dust proof film
Height thoroughly implosion guard.
2. a kind of mining dual-wavelength laser sensor of dust concentration according to claim 1, it is characterised in that：Main detection light
3 lines in source and auxiliary detection light source and photodetector constitute isosceles triangle, and light source control unit selects arm processor.
3. a kind of mining dual-wavelength laser sensor of dust concentration according to claim 1, it is characterised in that：Main detection light
Source is from the pulsed laser light source that wavelength is 630nm, and auxiliary detection light source is from the pulsed laser light source that wavelength is 450nm.
4. a kind of mining dual-wavelength laser sensor of dust concentration according to claim 2, it is characterised in that：Main detection light
Source is from the pulsed laser light source that wavelength is 630nm, and auxiliary detection light source is from the pulsed laser light source that wavelength is 450nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621389685.4U CN206362673U (en) | 2016-12-16 | 2016-12-16 | Mining dual-wavelength laser sensor of dust concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621389685.4U CN206362673U (en) | 2016-12-16 | 2016-12-16 | Mining dual-wavelength laser sensor of dust concentration |
Publications (1)
| Publication Number | Publication Date |
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| CN206362673U true CN206362673U (en) | 2017-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621389685.4U Active CN206362673U (en) | 2016-12-16 | 2016-12-16 | Mining dual-wavelength laser sensor of dust concentration |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314961A (en) * | 2017-08-17 | 2017-11-03 | 广州市汇鑫电子科技有限公司 | A kind of bare headed dust detection method of bidifly and sensor |
| CN108844865A (en) * | 2018-04-20 | 2018-11-20 | 清华大学深圳研究生院 | A kind of method and device of dual wavelength polarized light scatter measurement particulate matter |
| CN109655387A (en) * | 2018-12-20 | 2019-04-19 | 温州佳旭建设监理咨询有限公司 | A kind of monitoring device of powder-like waste at construction supervision scene |
| CN113484206A (en) * | 2021-06-25 | 2021-10-08 | 常熟市顺欣仪器仪表有限公司 | Suction-type dust concentration sensor with anti-blocking function |
-
2016
- 2016-12-16 CN CN201621389685.4U patent/CN206362673U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314961A (en) * | 2017-08-17 | 2017-11-03 | 广州市汇鑫电子科技有限公司 | A kind of bare headed dust detection method of bidifly and sensor |
| CN108844865A (en) * | 2018-04-20 | 2018-11-20 | 清华大学深圳研究生院 | A kind of method and device of dual wavelength polarized light scatter measurement particulate matter |
| CN109655387A (en) * | 2018-12-20 | 2019-04-19 | 温州佳旭建设监理咨询有限公司 | A kind of monitoring device of powder-like waste at construction supervision scene |
| CN109655387B (en) * | 2018-12-20 | 2021-07-20 | 温州佳旭建设监理咨询有限公司 | A dust monitoring devices for in building supervision scene |
| CN113484206A (en) * | 2021-06-25 | 2021-10-08 | 常熟市顺欣仪器仪表有限公司 | Suction-type dust concentration sensor with anti-blocking function |
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