CN208574395U - A kind of degradation of road car tail gas and dust pelletizing system - Google Patents
A kind of degradation of road car tail gas and dust pelletizing system Download PDFInfo
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- CN208574395U CN208574395U CN201820742255.9U CN201820742255U CN208574395U CN 208574395 U CN208574395 U CN 208574395U CN 201820742255 U CN201820742255 U CN 201820742255U CN 208574395 U CN208574395 U CN 208574395U
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- tail gas
- dust pelletizing
- car tail
- pelletizing system
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Abstract
The utility model discloses a kind of degradation of road car tail gas and dust pelletizing systems, including detection system, water injection system, sewage recovering system and control system；Detection system includes the detection device for detecting air quality and/or temperature above road；Water injection system includes several nozzles, the aqueduct for being connected to each nozzle and the reservoir being connected to by the first water pump with aqueduct；Sewage recovering system includes the rhone being laid on both sides of the road and the collecting pit being connect by drainpipe with rhone；Control system is used to receive the detection signal of detection system, and controls the movement of the first water pump according to the detection signal.The utility model is by can air quality above real-time detection road using detection system, and it is sprayed water in time to exhaust gas, particulate matter and fugitive dust in air using water injection system, it is taken away by drainage pattern contaminants associated, play the role of cooling simultaneously, to reduce the harm that motor-vehicle tail-gas causes gray haze and haze to urban road.
Description
Technical field
The utility model relates to air cleaning processing equipment, especially a kind of road car tail gas degradation and dust pelletizing system.
Background technique
In recent years, with the development of the city, exhaust emissions and particulate pollutant concentration become first on urban road
Big pollution sources.Pernicious gas and particulate pollutant in tail gas it also become fastest-rising greenhouse gas emission source.Automobile
The pernicious gases such as the CO, hydrocarbon, the nitrogen oxides that mainly contain in exhaust emissions can also seriously affect human health,
In, CO fast 250 times of speed ratio O2 in conjunction with the hemoglobin in blood of human body.Even if only sucking trace amounts of CO, it is also possible to give artificial
It is injured at Hypoxic, less serious case's dizziness, headache, severe one brain cell is placed on by permanent damage, and since vehicle exhaust is multiple rows of
1.5 meters hereinafter, children's soakage is usually adult twice or so, are particularly acute children's health damage；And particulate pollutant
To air quality, the health of visibility and human body equally has a significant impact, and attached containing a large amount of harmful toxic matters, the residence time is long,
Conveying distance is remote.
And existing road cleaning technology carries out manual control primarily with respect to road and shines the processing of water depositing dust, and can not be to friendship
When logical congested link generates tail gas, temperature or the exceeded particle concentration of local space, road air is handled in time, is made
Tail gas and particle concentration generate subenvironment tropical island effect under localized hyperthermia, so that the air pollution in entire city is aggravated, by
In can not effectively be handled in time, people's health is influenced on the air pollution of urban road meeting further expansion.Therefore,
It is necessary to research and develop a kind of system can in time handle the pollutants such as tail gas exhaust on road and granule dust.
Summary of the invention
In order to solve the above technical problems, the utility model provides a kind of degradation of road car tail gas and dedusting system
System, can be monitored road air situation and handle in time contaminants associated.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of road car tail gas degradation and dedusting
System, including detection system, water injection system, sewage recovering system and control system；
The detection system includes the detection device for detecting air quality and/or temperature above road；
The water injection system include several nozzles, each nozzle of connection aqueduct and by the first water pump with it is defeated
The reservoir of waterpipe connection, wherein the nozzle and aqueduct are layed on road respectively；
The sewage recovering system includes the rhone being laid on both sides of the road and is connect by drainpipe with rhone
Collecting pit；
The control system is used to receive the detection signal of detection system, and controls the first water pump according to the detection signal and move
Make.
Further, the control system includes that single-chip microcontroller, the power supply circuit being connected with microcontroller power supply end and monolithic are electromechanical
Property connection AD conversion module and D/A conversion module, the AD conversion module also with detection device be electrically connected, the DA turn
Block is changed the mold also to be electrically connected with the first water pump.
Further, the detection device includes being respectively arranged to be used to detect upper pavement surface automobile exhaust gas concentration on both sides of the road
Tail-gas analyzer, the particle monitoring instrument for detecting upper pavement surface particle concentration, for detecting upper pavement surface temperature
Temperature monitor it is one or more.
Further, the nozzle is laid on road by metal mesh or rubber grid pad or column.
Further, the metal mesh is layed between aqueduct and road, and multiple be used for is offered on the metal mesh
Place the groove of nozzle.
Further, several described nozzles are arranged on road with array.
Further, several described nozzles are in the spacing arrangement for pressing 1-2m along motor-driven vehicle going direction.
Further, several described nozzles are arranged in the vertical direction along motor-driven vehicle going direction by the spacing of 2.5-3.5m
Column.
Further, the water injection system further includes the protective cover being set to above nozzle.
Further, the protective cover uses tetragonous pyramidal structure, is provided with through-hole among it and is placed on above nozzle, institute
The bottom for stating protective cover is fixed on metal mesh.
Further, the protective cover, which is located to direction to the car, is equipped with reflex reflector.
Further, the rubber grid pad is layed in above road, and the aqueduct is layed in road and rubber grid
Between pad, it is also provided on the rubber grid pad multiple for placing the groove of nozzle.
Further, for the column with array arranged distribution on road, the nozzle is vertically arranged at the upper end of column.
Further, the column is in the spacing arrangement for pressing 20-30m along motor-driven vehicle going direction.
Further, the column presses the spacing arrangement of 10-20m in the vertical direction in motor-driven vehicle going direction.
It further, include the sedimentation basin and filtering ponds being arranged from top to bottom, the bottom of the collecting pit in the collecting pit
It is connect by the second water pump with reservoir.
Further, the detection system further includes the water level detection gauge being set in reservoir, and the water level detection gauge is used
It feeds back in the height of water level in detection reservoir and to control system.
The beneficial effects of the utility model are: using detection system can air quality above real-time detection road, and benefit
Sprayed water in time to exhaust gas, particulate matter and fugitive dust in air with water injection system, taken away by drainage pattern it is contaminants associated,
Play the role of cooling simultaneously, to reduce the harm that motor-vehicle tail-gas causes gray haze and haze to urban road；
It can collect also with sewage recovering system to the waste water generated after spraying water on road and be used after being recovered by filtration in time
In sprinkling water；The minimizing of accomplishing particulate matter can be taken in sedimentation basin with road surface and airborne particle object by water flow to simultaneously
Disposition.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a kind of structural schematic diagram of preferred embodiment of the utility model；
Fig. 2 is a kind of nozzle of preferred embodiment of the utility model in road ground scheme of installation；
Fig. 3 is a kind of air compressor machine scheme of installation of preferred embodiment of the utility model；
Fig. 4 is a kind of control circuit schematic illustration of preferred embodiment of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below with reference to embodiment and
The technical effect of the design of the utility model, specific structure and generation is clearly and completely described in attached drawing, with sufficiently geographical
Solve the purpose of this utility model, feature and effect.Obviously, described embodiment is that a part of the utility model is implemented
Example, rather than whole embodiments, those skilled in the art's other realities obtained without creative efforts
Example is applied, the range of the utility model protection is belonged to.
Referring to figs. 1 to Fig. 4, for a kind of preferably embodiment, a kind of road car tail gas degradation and dust pelletizing system, including
Detection system, water injection system, sewage recovering system and control system；
The detection system includes the tail gas monitor for detecting vehicle exhaust concentration；
The water injection system includes several nozzles 11, the aqueduct 12 of each nozzle 11 of connection and by the first water
The reservoir 13 that pump 14 is connected to aqueduct 12, wherein the nozzle 11 and aqueduct 12 are layed on road respectively；
The sewage recovering system includes being laid on rhone 31 on both sides of the road and by drainpipe 32 and rhone 31
The collecting pit 33 of connection；
The control system is used to receive the detection signal of detection system, and controls the first water pump 14 according to the detection signal
Movement.
In the present embodiment, the detection system further includes being respectively arranged to be used to detect upper pavement surface automobile waste on both sides of the road
The tail-gas analyzer of gas concentration, the particle monitoring instrument for detecting upper pavement surface particle concentration and for detecting road surface
The temperature monitor of Fang Wendu.The tail gas monitor is used to monitor toluene, dimethylbenzene, carbon monoxide and the nitrogen oxidation on road
The aerial concentration of the gases such as object (NO), the temperature monitor are used to detect the air themperature, described monitored above road
Particle monitoring instrument is for monitoring the particle concentration i.e. monitoring of PM1/PM2.5/PM10 above road and having multiple vertical points
It is distributed in above road.
In the present embodiment, the control system include single-chip microcontroller, the power supply circuit being connected with microcontroller power supply end and with
The touch display screen that single-chip microcomputer input is electrically connected.
In the present embodiment, the model of the single-chip microcontroller uses the single-chip microcontroller of 51 structures.
In the present embodiment, solar panels are provided in the power supply circuit, the solar panels are connected with solar energy power accumulating
Pond provides energy to single-chip microcontroller and modules, guarantees the normal use of equipment；The power supply circuit further includes being electrically connected with city
Power conversion module can be electrically connected by power conversion module and city when solar storage battery electric energy deficiency.
In the present embodiment, the touch display screen is used to input the coherent detection number of the setting such as detection system of relevant parameter
According to critical value and the revolving speed of motor etc., the touch display screen can also be used in the parameters such as the real time data that display detection system is surveyed
Display.
In the present embodiment, the AD conversion module includes the first AD conversion module, the second AD conversion module, third AD conversion
Module and the 4th AD conversion module；The D/A conversion module includes the first D/A conversion module, the second D/A conversion module, the 3rd DA
Conversion module, the 4th D/A conversion module and the 5th D/A conversion module.
In the present embodiment, the tail gas monitor is connected by the first AD conversion module with single-chip microcontroller, the temperature detection
Instrument is connected by the second AD conversion module with single-chip microcontroller, and the particle monitoring instrument passes through third AD conversion module and single-chip microcontroller phase
Even, the motor of first water pump 14 is connected by the first D/A conversion module with single-chip microcontroller；When the tail gas monitor, temperature are examined
Surveying the value that instrument and particle monitoring instrument are detected or monitored can input analog signal, institute to each corresponding A D conversion module in real time
Corresponding digital signal can be converted to according to the analog signal of input and be input to list by stating the first, second, third AD conversion module
In piece machine, when the data measured by the detection system reach preset peak, i.e., single-chip microcontroller passes through the first AD conversion module, the
Two AD conversion modules and/or third AD conversion module receive digital signal be highest when, single-chip microcontroller can just to the first DA turn
It changes the mold block and exports high level signal, so that the first D/A conversion module be made to export analog signal to the first water pump 14, make the first water pump
14 electric motor starting is transported to the water in reservoir 13 at each nozzle 11 by aqueduct 12, is sprayed onto water on road
Side, is taken tail gas plume, PM1/PM2.5/PM10, the fugitive dust in air in the rhone 31 of both sides of the road to by water mist, together
When water mist air themperature can be made to reduce on road, when to detect that the related data in air is reduced to pre- for the instrument in detection system
If minimum when, i.e., single-chip microcontroller is received by the first AD conversion module, the second AD conversion module and third AD conversion module
When digital signal is minimum, low level signal just is exported to the first D/A conversion module, so that the first D/A conversion module be made to stop
Analog signal is exported to the first water pump 14, the motor of the first water pump 14 is made to stop working, then nozzle 11 just stops to above road
Water spray.
It include the sedimentation basin 331 and filtering ponds 332 being arranged from top to bottom in the collecting pit 33 in the present embodiment, it is described
The bottom of collecting pit 33 is connect by the second water pump 34 with reservoir 13, and the motor of second water pump 34 is converted by the 2nd DA
Module is connected with single-chip microcontroller, controls the second water pump 34 by single-chip microcontroller and starts or stops, can using sedimentation basin 331 and filtering ponds 332
The waste water collected to rhone 31 is handled, then clean water is transported in water storage time by the second water pump 34, in case under
Secondary purification air uses, and waste water is recycled again.
In the present embodiment, the detection system further includes the water level detection gauge 131 being set in reservoir 13, the water level
Detector 131 and control system are electrically connected, for detecting the height of water level in reservoir 13 and feeding back to control system；It is described
Water level detection gauge 131 is connected by the 4th AD conversion module with single-chip microcontroller, and the single-chip microcontroller is received by the 4th AD conversion module
The digital signal that analog signal conversion is detected to water level detection gauge 131, when the water level in reservoir 13 is lower than preset minimum
When, i.e., single-chip microcontroller by the 4th AD conversion module receive digital signal be it is minimum when, single-chip microcontroller is just defeated to the second D/A conversion module
High level signal out makes the electric motor starting of the second water pump 34, is transported to the water of 33 bottom of collecting pit in reservoir 13, works as water storage
When water level in pond 13 rises to preset peak, i.e., single-chip microcontroller is received is by the 4th AD conversion module reception digital signal
When highest, low level signal just is exported to the second D/A conversion module, so that the motor of the second water pump 34 be made to stop, then collecting pit 33
Just stop to 13 water delivery of reservoir.
In the present embodiment, the cold districts such as northerly area, this system further includes air compressor machine 41, by pressure air pipe 44
The air accumulator 42 being connect with air compressor machine 41 and the gas path pipe 43 being connected to air accumulator 42, the first outlet of the gas path pipe 43
Place is not connected to aqueduct 12, is connected at the second outlet of gas path pipe 43 with drainpipe 32；The gas path pipe 43 exists
The second electrical valve 45 is respectively arranged at first outlet and at second outlet, air accumulator 42 passes through air compressor machine 41 to gas path pipe
Conveying air pressure in 43, then aqueduct 12 and drainpipe 32 are transported to by gas path pipe 43, the ponding in pipeline is emptied,
In order to avoid ponding in pipeline ice condition occurs and results in blockage in temperature when lower, make water that can not convey or drain；It is described
Air compressor machine 41 is connected by third D/A conversion module with single-chip microcontroller, second electrical valve 45 pass through the 4th D/A conversion module and
Single-chip microcontroller is connected, when single-chip microcontroller stops exporting high level signal to the first D/A conversion module or the second D/A conversion module, monolithic
Machine just continued to export high level signal to third D/A conversion module and the 4th D/A conversion module within the set time, to make
Air compressor machine 41 starts work and the second electrical valve 45 is opened, and when reaching the set time, single-chip microcontroller is just converted to the 3rd DA
Module and the 4th D/A conversion module export low level signal, so that 41 break-off of space machine and the second electrical valve 45 be made to close
It closes.
In the present embodiment, since the motor and 41 starting current of air compressor machine of the first water pump 14 and the second water pump 34 are larger,
Therefore between the first water pump 14 and the first D/A conversion module, between the second water pump 34 and the second D/A conversion module and air compressor machine
The first amplification module, the second amplification module and third amplification module are also respectively provided between 41 and third D/A conversion module,
It is improved by the electric current that the first, second, third amplification module can be such that the first, second, third D/A conversion module exports respectively,
To make the motor of the first water pump 14 and the second water pump 34 and air compressor machine 41 that can normally start.
In the present embodiment, the cold districts such as northerly area, the outer end of the aqueduct 12 is also wound with heating dress
It sets, the control system detects the temperature data control heating device above road according to detection system and acts, the control system
The control terminal of system is electrically connected by the 5th D/A conversion module and heating device, and the temperature monitor for road side of holding sway detects temperature
When spending lower, control system just starts heating device and is heated, and avoids spraying caused by because of the reason of 12 icing frosting of aqueduct
Water spray can not be effectively performed in mouth 11, therefore adds heating device to the outer end of aqueduct 12, can be before spray is shone to aqueduct
It is heated, completes the work of deicing defrosting, then pass through the control to the first water pump 14, starting water spray.Simultaneously on road
The heating device of aqueduct 12 can also heat ground, avoid surface temperature too low, cause the pollutant in air
It can not be flowed into collecting pit by streams.Resistant heating mode or hot-water line heating side can be used in the heating device
Formula, by winding the hot water pipeline of resistance wire or winding equipped with hot water in 11 outer end of aqueduct, wherein if heating device uses
Hot-water line heating method also needs addition resistance wire in hot-water line and heats to the water in pipe, while passing through addition third
Water pump allows the hot water in hot water pipeline to be circulated, so that the heat in hot water pipeline is dispersed into entire aqueduct
On 12.
In the present embodiment, several described nozzles 11 are arranged on road with array.
In the present embodiment, several described nozzles 11 are in the spacing arrangement for pressing 1.5m along motor-driven vehicle going direction；It is several
A nozzle 11 presses the spacing arrangement of 3m in the vertical direction along motor-driven vehicle going direction.The above distance is taken to arrange
Several described nozzles 11 using minimal number of nozzle 11, can make the spray of road ground shine range and reach maximum,
Simultaneously in order to reduce contact of the nozzle with automobile tyre, therefore the place that the nozzle 11 is laid with is as road solid line or void
Line.
In the present embodiment, it is also equipped with metal mesh between the aqueduct 12 and road ground, is opened on the metal mesh
Equipped with multiple for placing the groove of nozzle 11, relevant devices such as being embedded in underground water conduit 12 can be improved by adding metal mesh
Crushing resistance, while can be repaired and the operation of component replacement convenient for pipeline is impaired.
In the present embodiment, the water injection system further includes the protective cover 15 for being set to 11 top of nozzle, the metal
Protective cover 15 uses tetragonous pyramidal structure, is provided with through-hole among it and is placed on 11 top of nozzle, the bottom of the protective cover 15
Portion is fixed on metal mesh, can be protected to nozzle 11 using protective cover 15, in case motor vehicle is rolled to nozzle 11
It damages.
In the present embodiment, the protective cover 15, which is located to direction to the car, is equipped with reflex reflector, the reflex reflector
Reflective mirror or other reflectorized materials can be used, the motor vehicle of dealing can be played a warning role under night, ensure night running
Safety.
In the present embodiment, the aqueduct 12 and drainpipe 32 are all made of the good metallic water pipe of crushing resistance, simultaneously
Have the characteristics that corrosion resistance, since the weight for travelling motor vehicle on road is larger, larger pressure will cause to ground, therefore adopt
With the good water pipe of crushing resistance, the crushing resistance of water pipe can be improved, to improve the service life of water pipe.
Another embodiment of the utility model is equipped with one layer of rubber grid pad, the aqueduct 12 in road upper end
It is layed between road and rubber grid pad, multiple grooves for being used to place nozzle 11 is offered on the rubber grid pad, are led to
The laying rubber grid pad directly on road is crossed, one can avoid to road progress grooving and laying water pipes 12, simplify civil engineering
Construction；Two can be improved the crushing resistance of seeing of the relevant devices such as aqueduct 12, and the thickness range selection of the rubber grid pad exists
0.3m-0.8m, the rubber grid pad of this less preferred 0.5m thickness.
When using the setting of rubber grid pad, the protective cover 15 is then fixed on rubber grid pad.
Another embodiment of the utility model, by installing more root posts on road, the column is arranged with array
It is distributed on road, the nozzle 11 is vertically arranged at the upper end of column, and the column is pressing 25m along motor-driven vehicle going direction
Spacing arrangement, the column presses the spacing arrangement of 15m in the vertical direction in motor-driven vehicle going direction, as desired by setting
The pressure of the first water pump 14 is set, the height that can spray water mist to the nozzle 11 being set on column controls, thus will be required
The region of spray is comprehensively sprayed, and improves the altitude range in spray region, so that upper area air in region will be sprayed
In pernicious gas, particulate matter and/or fugitive dust form water flow on the ground by water mist and be flowed into collecting pit, the column is also
It can be used as the carrier of road street lighting, to improve the utilization rate of column.
The above, the only better embodiment of the utility model, but the utility model is not limited to above-mentioned reality
Example is applied, as long as its technical effect for reaching the utility model with any same or similar means, all should belong to the utility model
Protection scope.
Claims (17)
1. a kind of road car tail gas degradation and dust pelletizing system, it is characterised in that: returned including detection system, water injection system, waste water
Receipts system and control system；
The detection system includes the detection device (21) for detecting air quality and/or temperature above road；
The water injection system includes several nozzles (11), the aqueduct (12) of each nozzle (11) of connection and by first
The reservoir (13) that water pump (14) is connected to aqueduct (12), wherein the nozzle (11) and aqueduct (12) are laid with respectively
In on road；
The sewage recovering system includes being laid on rhone (31) on both sides of the road and by drainpipe (32) and rhone
(31) collecting pit (33) connected；
The control system is used to receive the detection signal of detection system, and controls the first water pump (14) according to the detection signal and move
Make.
2. road car tail gas degradation according to claim 1 and dust pelletizing system, it is characterised in that: the control system packet
Single-chip microcontroller, the power supply circuit being connected with microcontroller power supply end, the AD conversion module being electrically connected with single-chip microcontroller and DA is included to convert
Module, the AD conversion module are also electrically connected with detection device (21), and the D/A conversion module is also electric with the first water pump (14)
Property connection.
3. road car tail gas degradation according to claim 1 and dust pelletizing system, it is characterised in that: the detection device
It (21) include being respectively arranged to be used to detect the tail-gas analyzer of upper pavement surface automobile exhaust gas concentration on both sides of the road, for detecting road
The particle monitoring instrument of particle concentration above face, the temperature monitor for detecting upper pavement surface temperature it is one or more.
4. road car tail gas degradation according to claim 1 and dust pelletizing system, it is characterised in that: the nozzle (11) is logical
It crosses metal mesh or rubber grid pad or column is laid on road.
5. road car tail gas degradation according to claim 4 and dust pelletizing system, it is characterised in that: the metal mesh is laid with
Between aqueduct (12) and road, offered on the metal mesh multiple for placing the groove of nozzle (11).
6. road car tail gas degradation according to claim 5 and dust pelletizing system, it is characterised in that: several described nozzles
(11) it is arranged on road with array.
7. road car tail gas degradation according to claim 6 and dust pelletizing system, it is characterised in that: several described nozzles
(11) in the spacing arrangement for pressing 1-2m along motor-driven vehicle going direction.
8. road car tail gas degradation according to claim 6 and dust pelletizing system, it is characterised in that: several described nozzles
(11) spacing arrangement of 2.5-3.5m is pressed in the vertical direction along motor-driven vehicle going direction.
9. road car tail gas degradation according to claim 5 and dust pelletizing system, it is characterised in that: the water injection system is also
Including the protective cover (15) being set to above nozzle (11).
10. road car tail gas degradation according to claim 9 and dust pelletizing system, it is characterised in that: the metal coating
It covers (15) and uses tetragonous pyramidal structure, be provided with through-hole among it and be placed on above nozzle (11), the protective cover (15)
Bottom is fixed on metal mesh.
11. road car tail gas degradation according to claim 9 and dust pelletizing system, it is characterised in that: the metal coating
(15) are covered to be located to direction to the car equipped with reflex reflector.
12. road car tail gas degradation according to claim 4 and dust pelletizing system, it is characterised in that: the rubber grid
Pad is layed in above road, and the aqueduct (12) is layed between road and rubber grid pad, on the rubber grid pad
It is also provided with multiple for placing the groove of nozzle (11).
13. road car tail gas degradation according to claim 4 and dust pelletizing system, it is characterised in that: the column is with battle array
For column arranged distribution on road, the nozzle (11) is vertically arranged at the upper end of column.
14. road car tail gas degradation according to claim 13 and dust pelletizing system, it is characterised in that: the column is on edge
The spacing arrangement of 20-30m is pressed on motor-driven vehicle going direction.
15. road car tail gas degradation according to claim 13 and dust pelletizing system, it is characterised in that: the column is along machine
The spacing arrangement of 10-20m is pressed in the vertical direction of motor-car driving direction.
16. road car tail gas degradation according to claim 1 and dust pelletizing system, it is characterised in that: the collecting pit
It (33) include the sedimentation basin (331) and filtering ponds (332) being arranged from top to bottom in, the bottom of the collecting pit (33) passes through second
Water pump (34) is connect with reservoir (13).
17. road car tail gas degradation according to claim 1 and dust pelletizing system, it is characterised in that: the detection system
It further include the water level detection gauge (131) being set in reservoir (13), the water level detection gauge (131) is for detecting reservoir
(13) height of water level in is simultaneously fed back to control system.
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| CN108392923A (en) * | 2018-05-17 | 2018-08-14 | 珠海广睿汇利发展有限公司 | A kind of degradation of road car tail gas and dust pelletizing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108392923A (en) * | 2018-05-17 | 2018-08-14 | 珠海广睿汇利发展有限公司 | A kind of degradation of road car tail gas and dust pelletizing system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |