CN207231962U - A kind of bulk goods Coal Yard dust particle automated watch-keeping facility - Google Patents
A kind of bulk goods Coal Yard dust particle automated watch-keeping facility Download PDFInfo
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- CN207231962U CN207231962U CN201721013570.XU CN201721013570U CN207231962U CN 207231962 U CN207231962 U CN 207231962U CN 201721013570 U CN201721013570 U CN 201721013570U CN 207231962 U CN207231962 U CN 207231962U
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Abstract
It the utility model is related to coal field.A kind of bulk goods Coal Yard dust particle automated watch-keeping facility, including a monitoring device of powder-like waste that can optically carry out powder concentration measurement, it is characterized in that, the monitoring device of powder-like waste includes a laser acquisition radar, the laser acquisition radar is using pulse laser as light source, pulse width nanosecond, the distribution that coal particles thing pollutes is obtained by detecting the coal particles thing scattered signal of different distance in air, that realizes Coal Yard overhead horizontal extent endoparticle thing pollution concentration sweeps survey in real time.The utility model detects net with radar monitoring device of powder-like waste, compared with conventional sensors, the concentration for not only possessing automatic monitoring coal dust particulate matter, but also the region that be able to cannot be disposed to ordinary sensors in Coal Yard is monitored.
Description
Technical field
It the utility model is related to coal field, and in particular to a kind of automated watch-keeping facility.
Background technology
At present, domestic external pelivimetry dust concentration equipment is roughly divided into 2 classes by its assay method main method：1. sampling method,
Sampler samples are used, by weighing and being calculated dust concentration value；2. using non-sampling method, that is, utilize light scattering or light
The methods of absorption quick dust measuring, directly read dust concentration.Wherein light scattering method is to be subject to light to be sent after irradiating by measuring particle
The size of scattered light signal measure the mass concentration of particle.Its operation principle is：Light beam from light source is irradiated to dust
Area, occurs the scattering of light, electric signal is received and converted to by photelectric receiver with the relevant scattered light signal of granule density, through putting
Microprocessor is sent into after big device amplification to be handled, calculated, you can obtain dust concentration.Light scattering method is due to measurement speed
Degree is fast, and wide range of measurement is reproducible, and the degree of automation is high, the advantages that can realizing on-line measurement, at present meteorological, public
The fields such as health, labour health, atmosphere pollution are widely applied.
China harbour coal bulk storage yard is mostly outdoor stockpiling, and enterprise generally itself is also configured without the prison of coal dust
Survey facility.Having no any for a long time has what the outdoor coal dust particulate matter for stockyard in a big way monitored in real time to set
Standby or instrument practical application.Since not real-time science data are supported, the environmentally friendly means of harbour open storage ground are caused only
With artificial experience, its environment protecting people not to the utmost complies with one's wishes.
Utility model content
The purpose of this utility model is to provide a kind of bulk goods Coal Yard dust particle automated watch-keeping facility, to solve
Above-mentioned technical problem.
The technical problem that the utility model is solved can be realized using following technical scheme：
A kind of bulk goods Coal Yard dust particle automated watch-keeping facility, including one can optically to carry out dust dense
Spend the monitoring device of powder-like waste of measurement, it is characterised in that the monitoring device of powder-like waste includes a laser acquisition radar, and the laser is visited
Radar is surveyed using pulse laser as light source, pulse width nanosecond, is dissipated by the coal particles thing for detecting different distance in air
Signal is penetrated to obtain the distribution of coal particles thing pollution, realizes the reality of Coal Yard overhead horizontal extent endoparticle thing pollution concentration
When sweep survey.
The utility model is detected net compared with conventional sensors, is not only possessed automatic monitoring with radar monitoring device of powder-like waste
The concentration of coal dust particulate matter, and the region that be able to cannot be disposed to ordinary sensors in Coal Yard is monitored.Especially
Suitable for the dust control device of harbour coal open storage ground.Especially for the coal open storage ground of Chinese large-sized harbour, tool
There are extraordinary technology development prospect and market application space.
The laser acquisition radar further includes a laser emitting module, a laser pick-off module, and laser emitting module includes
One laser for producing pulsed light beam, laser pick-off module include a telescope；
The laser acquisition radar further includes one transmitting/reception optical axis control module, the transmitting/reception optical axis control mould
Block makes laser beam be overlapped with telescope optic axis.
Laser preferably uses Nd:YAG laser.Laser emitting module is also provided with the energy monitoring of energy monitoring
Device, light beam are directed toward the components such as the direction control mechanism of control.Energy monitor includes beam sampling eyeglass and integrating sphere, swashs
Light emission module can monitor the energy of transmitting laser in real time by beam sampling eyeglass and integrating sphere.Laser emitting module is preferred
It is that one can produce the required high energy laser of laser radar, and shaping is carried out to laser facula, energy is exported to laser
Monitored, and possess the laser emitting module that laser beam is directed toward self-regulation ability.
The telescope of the preferred diameter 150mm of telescope, the telescope gold-plated film, 1064nm reflectivity 95% with
On.
Laser pick-off module on receiving light path from as far as closely successively be equipped with diaphragm, collimation lens, narrow band pass filter group, point
Light microscopic, plus lens, detector.And monitoring transmitting/reception optical axis alignment case, critical piece includes receiving telescope, light splitting
The components such as light path, detector.
The light path that the laser is sent is equipped with beam expanding lens, automatically controlled reflective mirror successively；Nd:What YAG laser produced swashs
Light, after beam expanding lens expands, is reflected away by electrically controllable mirror, and the electrically controllable mirror is installed at telescope secondary mirror；
Laser pick-off module further includes a 4 quadrant detector, a single channel avalanche photodide, 1064nm echoes letter
Number two parts are divided into by 95/5 spectroscope, wherein,
That of 5% a branch of converges to 4 quadrant detector, the letter of the four-quadrant avalanche photodide of 4 quadrant detector
Number it is sent to transmitting/reception optical axis control module；
95% that it is a branch of received by single channel avalanche photodide, the signal of single channel avalanche photodide is then sent out
Send data acquisition/display/memory module.
Speculum can connect a motor by a shaft.Speculum is preferably the reflection with two latitude adjustment capabilities
Mirror.Speculum can rotate under the drive of motor, realize the adjustment of reflection angle.
The signal of 4 quadrant detector is after amplifying circuit by the signal acquisition mould of the transmitting/reception optical axis control module
Block receives, and the transmitting/reception optical axis control module exports whether energy is consistent, and judgement swashs according to 4 quadrant detector four-way
Whether light beam overlaps with telescope optic axis, and the transmitting/reception optical axis control module control connects the electrically controllable mirror.When four
The center of quadrant detector is adjusted precisely at the imaging center of diaphragm, and laser beam is overlapped with telescope optic axis, and far-field signal exists
Energy distribution on 4 quadrant detector is uniform, 4 quadrant detector four-way output energy coincidence.Once transmitting/reception optical axis
Misaligned, transmitting/reception optical axis control module then calculates the bias of optical axis using centroid algorithm, feeds back to electrically controllable mirror,
The angle of automatically controlled reflection is adjusted, realizes the closed-loop control that laser beam is directed toward.
The sample rate of the signal acquisition module of transmitting/reception optical axis control module is up to 15Msps, and distance resolution is
10m。
Data acquisition/display/memory module can be read each component real-time status, scanning system be directed toward, transmitting laser energy,
The information such as the Particulate Pollution concentration that echo signal intensity, point probe measure, also can go out to calculate on stockyard using these information
Coal hollow particle thing pollution concentration is distributed.
The laser acquisition radar is additionally provided with an azimuth scan machine for being used to regulate and control the laser acquisition radar detection direction
Structure.Laser acquisition radar detection direction described in azimuth scan mechanism controls, realizes 360 ° of scanning surveys.
Azimuth scan mechanism includes one 45 degree of speculums, and 45 degree of speculums are fixed on one can 360 ° of rotating rotations
Platform, the turntable are fixed at the light-emitting window of laser radar, and the turntable uses worm gear structure, center clear aperature
160mm, the light that laser is sent pass through the light hole, are projected after 45 degree of speculums are launched.The turntable passes through stepping
Motor drives.
Azimuth scan mechanism further includes an angular transducer, and the angular transducer is installed on the top of 45 degree of speculums
Portion.So as to fulfill the measurement to light-emitting angle, the monitoring of 360 ° of detections is realized.
The laser acquisition radar is additionally provided with sensing system, and the sensing system includes temperature sensor, humidity passes
Sensor etc..To obtain temperature, the humidity near Coal Yard by temperature-humidity sensor, provided for system anti-under environment
The protection of dirt rain-proof proposes reference.
Brief description of the drawings
Fig. 1 is the part-structure schematic diagram of the utility model；
Fig. 2 is the index path of laser pick-off module；
Fig. 3 is the structure diagram of azimuth scan mechanism.
Embodiment
In order to which the technical means, creative features, achievable purpose and effectiveness of the utility model realization are easy to understand, below
With reference to being specifically illustrating, the utility model is expanded on further.
With reference to Fig. 1,2 and 3, a kind of bulk goods Coal Yard dust particle automated watch-keeping facility, including one can pass through optics
Method carries out the monitoring device of powder-like waste of powder concentration measurement, and monitoring device of powder-like waste includes a laser acquisition radar, laser acquisition thunder
Up to using pulse laser as light source, pulse width nanosecond, letter is scattered by the coal particles thing for detecting different distance in air
Number come obtain coal particles thing pollution distribution, realize Coal Yard overhead horizontal extent endoparticle thing pollution concentration in real time sweep
Survey.The utility model is detected net compared with conventional sensors, is not only possessed automatic monitoring coal powder with radar monitoring device of powder-like waste
The concentration of dirt particulate matter, and the region that be able to cannot be disposed to ordinary sensors in Coal Yard is monitored.Especially suitable for
The dust control device of harbour coal open storage ground.Especially for the coal open storage ground of Chinese large-sized harbour, have very
Good technology development prospect and market application space.
Laser acquisition radar further includes a laser emitting module 1, a laser pick-off module 7, and laser emitting module 1 includes one
For producing the laser 2 of pulsed light beam, laser pick-off module 7 includes a telescope；Laser acquisition radar further include a transmitting/
Optical axis control module 5 is received, transmitting/reception optical axis control module 5 makes laser beam be overlapped with telescope optic axis.Laser acquisition radar
It is additionally provided with an azimuth scan mechanism 4 for being used to regulate and control laser acquisition radar detection direction.Azimuth scan mechanism 4 controls laser acquisition
Radar detection direction, realizes 360 ° of scanning surveys.
The main contents of specific each module
1) laser emitting module 1
Laser emitting module 1 is the light source assembly of system, produces the required high energy laser of laser radar, and to laser
Hot spot carries out shaping, which also exports energy to laser 2 and monitor, and possesses laser beam and be directed toward self-regulation ability,
Hardware supported is provided for transmitting/reception optical axis monitoring system.
Using Nd:YAG laser, by the use of its fundamental frequency light (1064nm) as lasing light emitter, is taken as lasing light emitter using light beam
The energy of sample eyeglass and integrating sphere as the laser of monitoring transmitting in real time of energy monitoring mechanism 8, the laser beam after beam expanding lens 9 expands
45 degree of speculums 3 that telescope secondary mirror is installed on by one are launched, and speculum 3 can be with motorized adjustment, for laser
Radar emission/reception light shaft alignement.The speculum 3 has the regulating power (θ of two dimensionsxAnd θy)。
The major parameter of laser 2 is as follows：
2) receiving module 7
Receiving module 7 is using the backscatter signal of telescope collection Atmospheric Particulate Matter, filters out the atmospheric background spoke
Penetrate, signal is acquired using highly sensitive detector, receiving module 7 can also monitor the phase between transmitting laser/reception optical axis
To position, data are provided for transmitting/reception optical axis control module 5.
Module is using the telescope of diameter 150mm as receiving telescope, the telescope gold-plated film, 1064nm reflectivity energy
More than 95%.1064nm echo-signals are divided into two parts by 95/5 spectroscope 11, and a portion (5%) converges to four-quadrant spy
Device 12 is surveyed, for direction of the detection laser beam in range of telescope, another beam (95%) is by single channel avalanche photodide
13 receive, and the signal of wherein four-quadrant avalanche photodide is transmitted directly to transmitting/reception optical axis control module 5, and single-pass
The signal of road avalanche photodide 13 is then sent to data acquisition/display/memory module 6.The signal of detector is through amplification electricity
Received behind road by signal acquisition module, the sample rate of acquisition module is up to 15MHz, distance resolution 10m.
The major parameter of receiver is as follows：
3) transmitting/reception optical axis control module 5
The main hardware of the module includes the 4 quadrant detector 12 in receiving light path, electrically controllable mirror 3, control circuit.
The center of detector can be adjusted precisely at the imaging center of diaphragm 10 by module, and laser beam is overlapped with telescope optic axis, far field
Energy distribution of the signal on 4 quadrant detector 12 is uniform, detector four-way output energy coincidence.Once transmitting/reception light
Axis is misaligned, then the bias of optical axis is calculated using centroid algorithm, feeds back to electric reflector mirror 3, realizes closing for laser beam direction
Ring controls.
4) scan module
This function is realized using single 45 degree of 3 structures of speculum, and 45 degree of speculums 3 are installed on stepper motor driven rotation
On platform 14, turntable 14 uses worm gear structure, center clear aperature 160mm.Scan module is installed on system head, and main
The connection between babinet is wanted to must assure that enough water resistancees.This module can realize 360 ° of models of laser radar deployment point level
Enclose interior scanning probe.
5) data acquisition/display/memory module 6
Each component real-time status can be read in the module, scanning system is directed toward, transmitting laser energy, echo signal intensity, point
The information such as the Particulate Pollution concentration that detector measures, can also go out to calculate coal hollow particle thing on stockyard using these information and pollute
Concentration distribution.
6) environment-guarantee module
Laser acquisition radar is additionally provided with sensing system, and sensing system includes temperature sensor, humidity sensor etc..With
Temperature, humidity near Coal Yard is obtained by temperature-humidity sensor, the dustproof and rainproof protection under environment is provided for system
It is proposed reference.
The advantages of basic principle and main feature and the utility model of the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Simply illustrate the utility model principle, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
Various changes and modifications are had, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed scope is defined by the appending claims and its equivalent thereof.
Claims (7)
1. a kind of bulk goods Coal Yard dust particle automated watch-keeping facility, including one can optically carry out dust concentration
The monitoring device of powder-like waste of measurement, the monitoring device of powder-like waste include a laser acquisition radar, and the laser acquisition radar further includes
One laser emitting module, a laser pick-off module, it is characterised in that laser emitting module includes one and is used to produce pulsed light beam
Laser, laser pick-off module include a telescope；The laser acquisition radar further includes one transmitting/reception optical axis control mould
Block, the transmitting/reception optical axis control module make laser beam be overlapped with telescope optic axis；
The laser acquisition radar is using pulse laser as light source, pulse width nanosecond, by detecting different distance in air
Coal particles thing scattered signal come obtain coal particles thing pollution distribution, realize Coal Yard overhead horizontal extent endoparticle
Thing pollution concentration sweeps survey in real time.
2. a kind of bulk goods Coal Yard dust particle automated watch-keeping facility according to claim 1, it is characterised in that swash
Light device uses Nd:YAG laser.
A kind of 3. bulk goods Coal Yard dust particle automated watch-keeping facility according to claim 1, it is characterised in that institute
The telescope that telescope is diameter 150mm is stated, the telescope gold-plated film, 1064nm reflectivity is more than 95%.
A kind of 4. bulk goods Coal Yard dust particle automated watch-keeping facility according to claim 2, it is characterised in that institute
State the light path that laser is sent and be equipped with beam expanding lens, automatically controlled reflective mirror successively；Nd:The laser that YAG laser produces, through beam expanding lens
After expanding, reflected away by electrically controllable mirror, the electrically controllable mirror is installed at telescope secondary mirror；
Laser pick-off module further includes a 4 quadrant detector, a single channel avalanche photodide, 1064nm echo-signals by
95/5 spectroscope is divided into two parts, wherein,
5% that it is a branch of converge to 4 quadrant detector, the signal of the four-quadrant avalanche photodide of 4 quadrant detector is sent
To transmitting/reception optical axis control module；
95% that it is a branch of received by single channel avalanche photodide, the signal of single channel avalanche photodide then sends number
According to collection/display/memory module.
A kind of 5. bulk goods Coal Yard dust particle automated watch-keeping facility according to claim 1, it is characterised in that institute
State laser acquisition radar and be additionally provided with an azimuth scan mechanism for being used to regulate and control the laser acquisition radar detection direction.
A kind of 6. bulk goods Coal Yard dust particle automated watch-keeping facility according to claim 5, it is characterised in that institute
Stating azimuth scan mechanism includes one 45 degree of speculums, 45 degree of speculums be fixed on one can 360 ° of rotating turntables, it is described
Turntable is fixed at the light-emitting window of laser radar, and the turntable uses worm gear structure, center clear aperature 160mm,
The light that laser is sent passes through the light hole, is projected after 45 degree of speculums are launched.
A kind of 7. bulk goods Coal Yard dust particle automated watch-keeping facility according to claim 6, it is characterised in that side
Bit scan mechanism further includes an angular transducer, and the angular transducer is installed on the top of 45 degree of speculums.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721013570.XU CN207231962U (en) | 2017-08-14 | 2017-08-14 | A kind of bulk goods Coal Yard dust particle automated watch-keeping facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721013570.XU CN207231962U (en) | 2017-08-14 | 2017-08-14 | A kind of bulk goods Coal Yard dust particle automated watch-keeping facility |
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| Publication Number | Publication Date |
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| CN207231962U true CN207231962U (en) | 2018-04-13 |
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| CN201721013570.XU Expired - Fee Related CN207231962U (en) | 2017-08-14 | 2017-08-14 | A kind of bulk goods Coal Yard dust particle automated watch-keeping facility |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340211A (en) * | 2017-08-14 | 2017-11-10 | 中交第三航务工程勘察设计院有限公司 | A kind of bulk goods Coal Yard dust particle automated watch-keeping facility |
| CN111795914A (en) * | 2019-04-05 | 2020-10-20 | 苹果公司 | Treating barrier and transmission element contamination from a hybrid particulate matter sensor |
| US11692809B2 (en) | 2019-09-18 | 2023-07-04 | Apple Inc. | Self-mixing interferometry-based absolute distance measurement with distance reference |
| US11774342B2 (en) | 2019-04-05 | 2023-10-03 | Apple Inc. | Particulate matter sensors based on split beam self-mixing interferometry sensors |
| US11874110B2 (en) | 2020-09-25 | 2024-01-16 | Apple Inc. | Self-mixing interferometry device configured for non-reciprocal sensing |
-
2017
- 2017-08-14 CN CN201721013570.XU patent/CN207231962U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340211A (en) * | 2017-08-14 | 2017-11-10 | 中交第三航务工程勘察设计院有限公司 | A kind of bulk goods Coal Yard dust particle automated watch-keeping facility |
| CN111795914A (en) * | 2019-04-05 | 2020-10-20 | 苹果公司 | Treating barrier and transmission element contamination from a hybrid particulate matter sensor |
| US11680788B2 (en) | 2019-04-05 | 2023-06-20 | Apple Inc. | Handling obstructions and transmission element contamination for self-mixing particulate matter sensors |
| CN111795914B (en) * | 2019-04-05 | 2023-06-30 | 苹果公司 | Handling obstructions and transport element contaminants from a hybrid particulate matter sensor |
| US11774342B2 (en) | 2019-04-05 | 2023-10-03 | Apple Inc. | Particulate matter sensors based on split beam self-mixing interferometry sensors |
| US11692809B2 (en) | 2019-09-18 | 2023-07-04 | Apple Inc. | Self-mixing interferometry-based absolute distance measurement with distance reference |
| US11874110B2 (en) | 2020-09-25 | 2024-01-16 | Apple Inc. | Self-mixing interferometry device configured for non-reciprocal sensing |
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Granted publication date: 20180413 |