CN204807427U - Production dust concentration monitoring system - Google Patents

Production dust concentration monitoring system Download PDF

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Publication number
CN204807427U
CN204807427U CN201520516207.4U CN201520516207U CN204807427U CN 204807427 U CN204807427 U CN 204807427U CN 201520516207 U CN201520516207 U CN 201520516207U CN 204807427 U CN204807427 U CN 204807427U
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China
Prior art keywords
dust
monitoring
light source
convex lens
passage
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Expired - Fee Related
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CN201520516207.4U
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Chinese (zh)
Inventor
范奇恒
易俊
刘铬
吴海丰
张鹏
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Chongqing Vocational Institute of Engineering
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Chongqing Vocational Institute of Engineering
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Abstract

The utility model discloses a production dust concentration monitoring system, including setting up in safety monitoring management Department's dust monitoring management system to and set up at the dust monitoring subsystem of respectively waiting to monitor the mill, dust monitoring subsystem is through wired or wireless network connection to dust monitoring management system, a serial communication port, dust monitoring subsystem includes industrial computer, still including setting up in the monitoring sub -station of waiting to monitor each dust monitoring point of interplant, the monitoring sub -station is including the dust concentration detection device who connects gradually the setting, analog -to -digital conversion module and communication module, communication module is connected to industrial computer. The utility model has the advantages of simple structure, the testing result reliability is high, is favorable to unified management and control dust concentration's detection.

Description

A kind of industrial dust density monitoring system
Technical field
The utility model relates to dust detection field, relates to a kind of industrial dust density monitoring system especially.
Background technology
Dust refers to the aerial solia particle that suspends, and elegant dust in an atmosphere often contains many toxic ingredients, as chromium, and manganese, cadmium, plumbous, mercury, arsenic etc.After human body sucks dust, be less than the particulate of 5 μm, very easily go deep into lung, cause toxic pneumonitis or silicosis, sometimes also can cause lung cancer.Be deposited on the pollutant of lung once be dissolved, directly will invade blood, cause septicemia, not by the pollutant dissolved, also may absorb by cell, cause cyto-architectural destruction.In addition, when dust reaches certain concentration, very easily explosion accident is caused.The Kunshan Zhong Rong factory explosion accident in such as on August 2nd, 2014, and on June 27th, 2015 Taiwan Xin Bei dust explosion event.
The dust monitoring field of present stage, the method of dust measurement roughly can divide sampling method and non-sampling method, light scattering method belongs to non-sampling method wherein, need not sample during measurement but utilize the characteristics such as the physical optics of dust directly to measure dust concentration, concrete principle is when light wave is by interacting with medium during inhomogeneous medium, light intensity is decayed, and this phenomenon is called photoextinction.Photoextinction can be regarded as again absorption and scattering acting in conjunction causes, a part for light is by medium scatters, deviate from the original direction of propagation, remainder is by Absorption of Medium, and light still passes through medium according to the original direction of propagation, and namely scatterer is except irradiating except the portion of energy scattering of light, also absorption portion can irradiate the portion of energy of light, and be converted into other forms such as heat energy, this is called absorption, and absorb with scattering just light scattering method measure the ultimate principle of dust.Dust concentration in light scattering determining air, has quick, easy and can the feature such as METHOD FOR CONTINUOUS DETERMINATION.
For avoiding the generation of accident, improving the operation bad border of factory, monitoring in real time the dust content at reference mark each in factory, being conducive to competent authorities of local government, to carry out unified management to the monitoring of factory dust concentration be problem demanding prompt solution.
Utility model content
For above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is: how to provide a kind of structure simple, easy to maintenance, accuracy of detection is higher, easy cleaning, is conducive to the industrial dust density monitoring system of the dust concentration monitoring of responsible departments of the government's unified monitoring and the management each factory in area under one's jurisdiction.
In order to solve the problems of the technologies described above, the utility model have employed following technical scheme:
A kind of industrial dust density monitoring system, comprises the dust monitoring management system being arranged on safety monitoring administrative authority, and is arranged on the dust monitoring subsystem of each factory to be monitored; Described dust monitoring subsystem is connected to dust monitoring management system by wired or wireless network; It is characterized in that, described dust monitoring subsystem comprises industrial computer, is connected the display terminal and printing terminal that arrange with described industrial computer; Also comprise the monitoring sub-station being arranged on each dust monitoring point in factory to be monitored; Described monitoring sub-station comprises the dust concentration pick-up unit connecting setting successively, analog-to-digital conversion module and communication module; Described dust concentration pick-up unit comprises magazine and the light-emitting component that is arranged in magazine and photo-electric conversion element, and be provided with dust suction passage in described magazine, light source transmission channel and light source accept passage; Described light source transmission channel and light source accept that passage is mutually vertical and intersection point is positioned on dust suction passage, and the angle of described light source transmission channel and described dust suction passage is less than 90 degree; Described light-emitting component is arranged in light source transmission channel, and described light-emitting component is furnished with convex lens near described dust suction passage side, and described light-emitting component is positioned at the focus place of described convex lens; Described photo-electric conversion element is arranged on described light source and accepts in passage.Described communication module is connected to described industrial computer.
During work, dust enters in the dust suction passage of dust concentration pick-up unit inside, light source is sent by light-emitting component, via becoming source of parallel light after convex lens, the dust in dust suction passage is irradiated, under the scattering process of dust, some scattered light to enter in photo-electric conversion element and makes photo-electric conversion element produce analog electrical signal, send into industrial computer by communication module after analog electrical signal carries out analog to digital conversion by analog-to-digital conversion module to calculate, obtain the dust concentration value of monitoring sub-station.The dust concentration value of each monitoring sub-station of industrial computer record also draws dust concentration-time curve.The data of industrial computer record are transferred in the dust monitoring management system of safety monitoring administrative authority by dust monitoring subsystem.Like this, just can complete unified management and monitoring are carried out to the monitoring of the dust concentration of local each factory.
As optimization, described light source transmission channel and described light source accept passage on the hole wall of the side of magazine outer wall and all have screw thread, and described light source transmission channel and described light source accept passage all arranges with magazine outer wall vertical; The thread end that described light source transmission channel and described light source accept passage is respectively provided with a thread plug, be columniform object placing cavity in the middle part of the screw rod of described thread plug, described light-emitting component and photo-electric conversion element are fixedly mounted in the object placing cavity of the thread plug of respective passage respectively.
Like this, light-emitting component and photo-electric conversion element are arranged in thread plug, light-emitting component and photo-electric conversion element can be facilitated to be fixed in respective passage, meanwhile, after having detected, thread plug can be screwed off, by clean for the dust cleaning of magazine inside.Once light-emitting component or photo-electric conversion element damage, also can change fast, be convenient to maintenance.
As optimization, be provided with O-ring seal between the outer wall of described thread plug and described magazine, the wire of described light-emitting component and photo-electric conversion element is each passed through and is glued on the nut of respective thread plug.
Like this, light source transmission channel and light source can be accepted channel seal by thread plug, and prevent under the effect of current stabilization air pump, impurity enters in magazine, the precision that impact detects.
As optimization, the face of cylinder away from nut one end of described thread plug is provided with screw thread to described columniform object placing cavity, and screws and be provided with a convex lens fixed mount; Described convex lens are fixedly mounted on described convex lens fixed mount away from the end screwing portion, and the primary optical axis of convex lens overlaps with described convex lens fixed mount axis; Described convex lens fixed mount to stretch out formation annular boss away from the end periphery screwing portion, and described annular boss is fitted near the end face of the side of described thread plug and described screw rod.
Like this, the installation of convex lens can be facilitated, simultaneously, because the end face of annular boss that convex lens fixed mount is arranged and thread plug is fitted, the distance of convex lens and light-emitting component can be controlled, ensure that light-emitting component is positioned at the focal position of convex lens, make the location of the two simpler.
As optimization, described monitoring sub-station also comprises the wind speed measurement module and humidity detecting module that arrange with the dust suction inlet co-altitude of described dust concentration pick-up unit; Described wind speed measurement module and humidity detecting module are all electrically connected to described dust concentration pick-up unit.
According to the requirement of " in workplace air dust concentration method for quick-light scattering method ", detection should be less than 90% in relative humidity, and mean wind speed is less than in the environment of 1m/s and carries out.After arranging wind speed measurement module and humidity detecting module, system can control startup and the closedown of monitoring sub-station according to the wind speed of the environment of monitoring sub-station and humidity, like this, can improve the reliability and validity that detect data, simultaneously more energy-conservation.
As optimization, described dust monitoring subsystem also comprises warning system, and described warning system is electrically connected to described industrial computer; Described warning system comprises voice prompting device and warning indicator light.
Like this, once detect that the dust concentration of monitoring sub-station exceeds standard, dust monitoring subsystem starts warning system, and voice prompting device can report the numbering of the monitoring sub-station of concentration over-standard, and warning indicator light flicker is simultaneously reported to the police.
As optimization, described dust monitoring subsystem also comprises the depositing dust module of the air suction type being arranged on each operating area in factory to be monitored; Described depositing dust module is electrically connected to described industrial computer.
Like this, once detect that the dust concentration of monitoring sub-station exceeds standard, the depositing dust module of the air suction type of the operating area of this sub-station for detection region will start or strengthen Power operation, carry out depositing dust process to operating area, prevent dust concentration from continuing to raise, cause danger.
As optimization, described light-emitting component is light emitting diode, and described photo-electric conversion element is phototransistor.
In sum, it is simple that the utility model has structure, and easy to maintenance, accuracy of detection is higher, easy cleaning, is conducive to the advantages such as the detection of unified management and monitoring dust concentration.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is the structural representation (in figure, dotted line is the light that light-emitting component sends) of magazine in Fig. 1.
Fig. 3 is the PM of certain plant area of concrete-agitating company limited monitoring point 1 2.5concentration changes with time trend map.
Fig. 4 is the PM of certain plant area of concrete-agitating company limited monitoring point 1 10concentration changes with time trend map.
Fig. 5 is the PM of certain plant area of concrete-agitating company limited monitoring point 2 2.5concentration changes with time trend map.
Fig. 6 is the PM of certain plant area of concrete-agitating company limited monitoring point 2 10concentration changes with time trend map.
Fig. 7 is the PM of certain plant area of concrete-agitating company limited monitoring point 3 2.5concentration changes with time trend map.
Fig. 8 is the PM of certain plant area of concrete-agitating company limited monitoring point 3 10concentration changes with time trend map.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
During concrete enforcement: as depicted in figs. 1 and 2, a kind of industrial dust density monitoring system, comprises the dust monitoring management system 1 being arranged on safety monitoring administrative authority, and is arranged on the dust monitoring subsystem 2 of each factory to be monitored; Described dust monitoring subsystem 2 is connected to dust monitoring management system 1 by wired or wireless network; Wherein, described dust monitoring subsystem 2 comprises industrial computer 3, is connected the display terminal 5 and printing terminal 4 that arrange with described industrial computer 3; Also comprise the monitoring sub-station 6 being arranged on each dust monitoring point in factory to be monitored; Described monitoring sub-station 6 comprises the dust concentration pick-up unit 63 connecting setting successively, analog-to-digital conversion module 62 and communication module 61; Described communication module 61 is connected to described industrial computer 3; Described dust concentration pick-up unit 63 comprises the filtration unit (not shown) and PM10 or PM2.5 cutter (not shown) that are arranged in dust suction inlet successively, and is positioned at the current stabilization air pump (not shown) of dust outlet end; The light-emitting component 632 also comprising magazine 631 and be arranged in magazine 631 and photo-electric conversion element 633, dust suction passage 634 is provided with in described magazine 631, light source transmission channel 635 and light source accept passage 636, described light source transmission channel 635 and light source accept that passage 636 is mutually vertical and intersection point is positioned on dust suction passage 634, and the angle of described light source transmission channel 635 and described dust suction passage 634 is less than 90 degree; One end of described dust suction passage 634 connects described PM10 or PM2.5 cutter, and the other end connects described current stabilization air pump; Described light-emitting component 632 is arranged in light source transmission channel 635, and described light-emitting component 632 is furnished with convex lens 637 near described dust suction passage 634 side, and described light-emitting component 632 is positioned at the focus place of described convex lens 637; Described photo-electric conversion element 633 is arranged on described light source and accepts in passage 636; Described analog-to-digital conversion module 62 receives the pulse signal from photo-electric conversion element 632 and is converted to digital signal, then be transferred to described industrial computer 3 by communication module 61 to carry out calculating dust concentration value, described industrial computer 3 pairs of dust concentration values are carried out real time record and are uploaded to described dust monitoring management system 1 by network.
During work, dust enters in the dust suction passage of dust concentration pick-up unit inside via the dust suction inlet of dust concentration pick-up unit, light source is sent by light-emitting component, via becoming source of parallel light after convex lens, the dust in dust suction passage is irradiated, under the scattering process of dust, some scattered light to enter in photo-electric conversion element and makes photo-electric conversion element produce analog electrical signal, send into industrial computer by communication module after analog electrical signal carries out analog to digital conversion by analog-to-digital conversion module to calculate, obtain the dust concentration value of monitoring sub-station.The dust concentration value of each monitoring sub-station of industrial computer record also draws dust concentration-time curve.The data of industrial computer record are transferred in the dust monitoring management system of safety monitoring administrative authority by dust monitoring subsystem.Like this, just can complete unified management and monitoring are carried out to the monitoring of the dust concentration of local each factory.
Wherein, described light source transmission channel 635 and described light source accept passage 636 on the hole wall of the side of magazine 631 outer wall and all have screw thread, and described light source transmission channel 635 and described light source accept passage 636 all arranges with magazine 631 outer wall vertical; The thread end that described light source transmission channel 635 and described light source accept passage 636 is respectively provided with a thread plug 9, be columniform object placing cavity 92 in the middle part of the screw rod 91 of described thread plug 9, described light-emitting component 632 and photo-electric conversion element 633 are fixedly mounted in the object placing cavity 92 of the thread plug 9 of respective passage respectively.
Like this, light-emitting component and photo-electric conversion element are arranged in thread plug, light-emitting component and photo-electric conversion element can be facilitated to be fixed in respective passage, meanwhile, after having detected, thread plug can be screwed off, by clean for the dust cleaning of magazine inside.Once light-emitting component or photo-electric conversion element damage, also can change fast, be convenient to maintenance.
Wherein, be provided with O-ring seal 10 between described thread plug 9 and the outer wall of described magazine 631, the wire of described light-emitting component 632 and photo-electric conversion element 633 is each passed through and is glued on the nut 93 of respective thread plug 9.
Like this, light source transmission channel and light source can be accepted channel seal by thread plug, and prevent under the effect of current stabilization air pump, impurity enters in magazine, the precision that impact detects.
Wherein, the face of cylinder away from nut 93 one end of described thread plug 9 is provided with screw thread to the object placing cavity 92 being positioned at the thread plug 9 of described light source transmission channel 635, and screws and be provided with a convex lens fixed mount 11; Described convex lens 637 are fixedly mounted on described convex lens fixed mount 11 away from the end screwing portion, and the dead in line of the primary optical axis of convex lens 637 and described convex lens fixed mount 11; Described convex lens fixed mount 11 to stretch out formation annular boss 111 away from the end periphery screwing portion, and described annular boss 111 is fitted near the side of described thread plug 9 and the end face of described screw rod 91.
Like this, the installation of convex lens can be facilitated, simultaneously, because the end face of annular boss that convex lens fixed mount is arranged and thread plug is fitted, the distance of convex lens and light-emitting component can be controlled, ensure that light-emitting component is positioned at the focal position of convex lens, make the location of the two simpler.
Wherein, described monitoring sub-station 6 also comprises the wind speed measurement module 65 and humidity detecting module 64 that arrange with the dust suction inlet co-altitude of described dust concentration pick-up unit 63; Described wind speed measurement module 65 and humidity detecting module 64 are all electrically connected to described dust concentration pick-up unit 63.
According to the requirement of " in workplace air dust concentration method for quick-light scattering method ", detection should be less than 90% in relative humidity, and mean wind speed is less than in the environment of 1m/s and carries out.After arranging wind speed measurement module and humidity detecting module, system can control startup and the closedown of monitoring sub-station according to the wind speed of the environment of monitoring sub-station and humidity, like this, can improve the reliability and validity that detect data, simultaneously more energy-conservation.
Wherein, described dust monitoring subsystem 2 also comprises warning system 7, and described warning system 7 is electrically connected to described industrial computer 3; Described warning system 7 comprises voice prompting device 71 and warning indicator light 72.
Like this, once detect that the dust concentration of monitoring sub-station exceeds standard, dust monitoring subsystem starts warning system, and voice prompting device can report the numbering of the monitoring sub-station of concentration over-standard, and warning indicator light flicker is simultaneously reported to the police.
Wherein, described dust monitoring subsystem 2 also comprises the depositing dust module 8 of the air suction type being arranged on each operating area in factory to be monitored; Described depositing dust module 8 is electrically connected to described industrial computer 3.
Like this, once detect that the dust concentration of monitoring sub-station exceeds standard, the depositing dust module of the air suction type of the operating area of this sub-station for detection region will start or strengthen Power operation, carry out depositing dust process to operating area, prevent dust concentration from continuing to raise, cause danger.
During concrete enforcement, above-mentioned wind speed measurement module, humidity detecting module, alarm lamp, voice prompting device, communication module, analog-to-digital conversion module and PM 10and PM 2.5the each several part components such as cutter self are all belong to ripe prior art, component self does not belong to the application makes creative contribution place to prior art, the application is above-mentioned each existing parts to be arranged on the location fix of particular requirement to the place that prior art makes creative contribution, and combined and connect, make its can so that detect, can be used in dust concentration monitoring, reach the object of unified management and detection.
As shown in Fig. 3 ~ Fig. 8, for monitoring PM in certain concrete-agitating company limited Workplace 2.5and PM 10concentration changes with time trend map.
Monitoring point 1, is positioned near concrete mixing plant and (is total to monitoring and draws 183 groups of PM 2.5data, 179 groups of PM10 data), PM 2.5concentration changes with time trend map, as shown in Figure 3, PM 2.5concentration peak when appearing at the morning 11 near, reduce gradually to concentration value after noon, when to 14 time about concentration start again progressively to raise; PM 10the trend map of concentration changes with time, as shown in Figure 4, PM 10concentration peak when appearing at the morning 12 near, concentration reduces gradually later, when to 14 time concentration be down to minimum, then start again progressively to raise.
Monitoring point 2, is positioned at Tooling Maintenance Area and (monitors 195 groups of PM altogether 2.5data, 196 groups of PM 10data), PM 2.5concentration changes with time trend map, as shown in Figure 5, PM 2.5mxm. when appearing at 10 near, concentration declines and held stationary always thereupon; PM 10the trend map of concentration changes with time, as shown in Figure 6, PM 10concentration mxm. when appearing at 9 near, concentration reduces and keeps certain fluctuation thereupon.
Monitoring point 3, (monitoring draws 202 groups of PM to be altogether positioned at material channel 2.5data, 202 groups of PM 10data), PM 2.5concentration changes with time trend map, as shown in Figure 7, PM 2.5near when concentration mxm. appears at 10, concentration continues to reduce thereupon, and keeps certain stable; PM 10the trend map of concentration changes with time, as shown in Figure 8, PM 10near when mxm. appears at 10, concentration continues to reduce thereupon, and keeps certain stable.
According to the Monitoring Data of 3 monitoring points, no matter be PM among one day 2.5also or PM 10concentration all do not have certain rule to follow along with the change of time, main cause is this concrete-agitating company limited routine work amount is arrange according to the concrete demand of reality, if the same day, concrete demand was large, then workload is just heavier, the work that on-site arranges just more closeness.According to in-site measurement observation analysis, several situation can cause the sudden change of dust concentration below:
1, maintenance job is repaired in the welding, cutting etc. of workman.
Strongly affecting 2, by traffic above-ground source, namely on-site dust on the roads have impact on PM 10size, the exhaust emissions of vehicle have impact on PM 2.5size.
3, the startup of mixing plant inner machine, as the startup etc. of flat belt or oblique belt.
By dust concentration monitoring system of the present utility model, the relevant competent authorities of local government can detect plant area's dust of this concrete-agitating company limited and manage very easily.

Claims (8)

1. an industrial dust density monitoring system, comprises the dust monitoring management system being arranged on safety monitoring administrative authority, and is arranged on the dust monitoring subsystem of each factory to be monitored; Described dust monitoring subsystem is connected to dust monitoring management system by wired or wireless network; It is characterized in that, described dust monitoring subsystem comprises industrial computer, is connected the display terminal and printing terminal that arrange with described industrial computer; Also comprise the monitoring sub-station being arranged on each dust monitoring point in factory to be monitored; Described monitoring sub-station comprises the dust concentration pick-up unit connecting setting successively, analog-to-digital conversion module and communication module; Described dust concentration pick-up unit comprises magazine and the light-emitting component that is arranged in magazine and photo-electric conversion element, and be provided with dust suction passage in described magazine, light source transmission channel and light source accept passage; Described light source transmission channel and light source accept that passage is mutually vertical and intersection point is positioned on dust suction passage, and the angle of described light source transmission channel and described dust suction passage is less than 90 degree; Described light-emitting component is arranged in light source transmission channel, and described light-emitting component is furnished with convex lens near described dust suction passage side, and described light-emitting component is positioned at the focus place of described convex lens; Described photo-electric conversion element is arranged on described light source and accepts in passage; Described communication module is connected to described industrial computer.
2. industrial dust density monitoring system as claimed in claim 1, it is characterized in that, described light source transmission channel and described light source accept passage on the hole wall of the side of magazine outer wall and all have screw thread, and described light source transmission channel and described light source accept passage all arranges with magazine outer wall vertical; The thread end that described light source transmission channel and described light source accept passage is respectively provided with a thread plug, be columniform object placing cavity in the middle part of the screw rod of described thread plug, described light-emitting component and photo-electric conversion element are fixedly mounted in the object placing cavity of the thread plug of respective passage respectively.
3. industrial dust density monitoring system as claimed in claim 2, it is characterized in that, be provided with O-ring seal between the outer wall of described thread plug and described magazine, the wire of described light-emitting component and photo-electric conversion element is each passed through and is glued on the nut of respective thread plug.
4. industrial dust density monitoring system as claimed in claim 2, it is characterized in that, the face of cylinder away from nut one end of described thread plug is provided with screw thread to described columniform object placing cavity, and screws and be provided with a convex lens fixed mount; Described convex lens are fixedly mounted on described convex lens fixed mount away from the end screwing portion, and the primary optical axis of convex lens overlaps with described convex lens fixed mount axis; Described convex lens fixed mount to stretch out formation annular boss away from the end periphery screwing portion, and described annular boss is fitted near the end face of the side of described thread plug and described screw rod.
5. industrial dust density monitoring system as claimed in claim 1, it is characterized in that, described monitoring sub-station also comprises the wind speed measurement module and humidity detecting module that arrange with the dust suction inlet co-altitude of described dust concentration pick-up unit; Described wind speed measurement module and humidity detecting module are all electrically connected to described dust concentration pick-up unit.
6. industrial dust density monitoring system as claimed in claim 1, it is characterized in that, described dust monitoring subsystem also comprises warning system, and described warning system is electrically connected to described industrial computer; Described warning system comprises voice prompting device and warning indicator light.
7. industrial dust density monitoring system as claimed in claim 1, it is characterized in that, described dust monitoring subsystem also comprises the depositing dust module of the air suction type being arranged on each operating area in factory to be monitored; Described depositing dust module is electrically connected to described industrial computer.
8. industrial dust density monitoring system as claimed in claim 1, it is characterized in that, described light-emitting component is light emitting diode, and described photo-electric conversion element is phototransistor.
CN201520516207.4U 2015-07-16 2015-07-16 Production dust concentration monitoring system Expired - Fee Related CN204807427U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106225842A (en) * 2016-07-15 2016-12-14 常熟市矿山机电器材有限公司 A kind of dust pollution online monitoring system
CN108449413A (en) * 2018-03-20 2018-08-24 深圳市益鑫智能科技有限公司 A kind of concrete plant's dust intelligent monitor system
CN115876655A (en) * 2022-12-02 2023-03-31 中国矿业大学 Whole process monitoring system and method for explosion-related dust in limited space

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106225842A (en) * 2016-07-15 2016-12-14 常熟市矿山机电器材有限公司 A kind of dust pollution online monitoring system
CN108449413A (en) * 2018-03-20 2018-08-24 深圳市益鑫智能科技有限公司 A kind of concrete plant's dust intelligent monitor system
CN108449413B (en) * 2018-03-20 2021-03-12 苏州南方混凝土有限公司 Intelligent dust monitoring system for concrete plant
CN115876655A (en) * 2022-12-02 2023-03-31 中国矿业大学 Whole process monitoring system and method for explosion-related dust in limited space
CN115876655B (en) * 2022-12-02 2023-06-16 中国矿业大学 System and method for monitoring whole process of explosion-related dust in limited space

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