CN101884964A - Control system of spraying device of open coal car - Google Patents
Control system of spraying device of open coal car Download PDFInfo
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- CN101884964A CN101884964A CN2010101345881A CN201010134588A CN101884964A CN 101884964 A CN101884964 A CN 101884964A CN 2010101345881 A CN2010101345881 A CN 2010101345881A CN 201010134588 A CN201010134588 A CN 201010134588A CN 101884964 A CN101884964 A CN 101884964A
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Abstract
The invention discloses a control system of a spraying device of an open coal car. The control system comprises control equipment, liquid supplying equipment, a spraying device and a train speed sensor, wherein the control equipment mainly comprises a programmable controller and a frequency converter; the liquid supplying equipment comprises liquid supplement equipment, stirring equipment and conveying equipment and is used for stirring, blending, diluting and conveying a coal dust suppressant; the spraying device is used for uniformly spraying the coal dust suppressant onto coal in the running coal car; and the train speed sensor is used for measuring the speed of a running train. Because the acquired train speed data is transmitted to the programmable controller through the train speed sensor and the frequency converter of the control equipment adjusts the opening, closing and rotation speed of a spraying pump of the conveying equipment according to the processing result of the programmable controller of the control equipment, the control system can control the spraying amount of the coal dust suppressant in real time, avoids waste of the dust suppressant and saves cost.
Description
Technical field
The present invention relates to a kind of control system of spraying device of open coal car.
Background technology
In the storage of coal, transportation, owing to reasons such as wind-force, coal dust can run off with the wind, shed airborne dust, has wasted the resource of a large amount of preciousnesses; Coal dust is acid, sheds the back attached on object such as buildings such as station along the line, civilian installation and the crops, has had a strong impact on the healthy of the railway people along the line, and the growth to crops along the line simultaneously damages.Coal dust also severe contamination the railway roadbed of line in tunnel, and aggravated its degree that hardens.In the serious location of pollution level, coal dust has buried fastener, concrete slab sleeper etc., has brought sizable difficulty for the daily maintenance of works department, has additionally increased workload, simultaneously rail and fastener etc. is had certain corrosiveness, has brought potential safety hazard.In addition, coal dust often causes the short circuit of contact net for power supplying, insulator, and its service life has been shortened in discharge; Pollute equipment such as railway signal, communication cable, the very big difficulty of having given daily service work band.During the train process of passing through tunnel, airborne dust fills the air the tunnel, greatly reduce visibility, locomotive crew member's sight line is had a strong impact on, and, the operating ambient temperature of the electric equipment in the locomotive is raise because coal dust has stopped up the locomotive radiator-grid, often cause equipment fault, its serviceability rate and degree of safety are reduced, and the security of operation of train in serious threat.
The main cause that can produce the airborne dust problem in the Coal Transport process is that during vehicle take-offs, the surface, coal seam is blown afloat by air-flow; The air-flow during meeting more tiny coal dust of particle diameter of having kicked up; Train is through out-of-date, and the coal dust under the past deposition is raised again; " the piston wind " that produces during the train process of passing through tunnel is the vibrations of jolting of train in addition, make the bigger coal grain of diameter also can be by the car body that blows off, and tiny coal dust is adsorbed on the equipment such as tunnel Dong Bi, top, hole and contact net, insulator, form to pollute; Deposition coal grain on the roadbed will be subjected to rolling once more as being higher than rail, forms secondary pollution.
Coal dust depressor is to be combined by the Multifunction high molecular polymer, degree of cross linking molecule in the polymer forms network structure, intermolecular have a various ion group, because charge density is big, and produce stronger affinity between the ion, can catch rapidly and particle dust firmly be adsorbed, have very strong dust suppression, dustproof effect.
Though existing coal dust depressor spray equipment can realize coal dust depressor is sprayed the basic purpose on coal surface, still has following technological deficiency:
Speed when the first, the train of existing transportation coal is by the coal dust depressor spray equipment differs, the speed of spraying coal dust depressor and what the coal dust depressor spray equipment can not in time control and adjust, can not control the unlatching of sprinkling in real time and stop, thereby it is poor to cause spray effect occurring, dust suppressant problem such as be wasted.
The second, have the coal dust depressor spray equipment now and lack the function that the goods train essential information is collected and stored, be unfavorable for the expenditure of transportation management or increase management cost.
Summary of the invention
The present invention has designed a kind of control system of spraying device of open coal car, it has mainly solved following technical problem: the speed of the train of (1) existing transportation coal during by the coal dust depressor spray equipment differs, the speed of spraying coal dust depressor and what the coal dust depressor spray equipment can not in time control and adjust, can not control the unlatching of sprinkling and stop collection, thereby it is poor to cause spray effect occurring, the dust suppressant problem that is wasted.
(2) existing coal dust depressor spray equipment lacks the function that the goods train essential information is collected and stored, and is unfavorable for the expenditure of transportation management or increase management cost.
In order to solve the technical problem of above-mentioned existence, the present invention has adopted following scheme:
A kind of control system of spraying device of open coal car comprises a control appliance, wherein mainly comprises Programmable Logic Controller and frequency converter; One liquid supply apparatus comprises water supplement apparatus, mixing plant and conveying equipment, is used for stirring, mixing, dilution and the transmission of coal dust depressor; One spray equipment is used for coal dust depressor is sprayed to the coal that moves coal car equably; One train speed sensor is used for the train that travels is carried out tachometric survey; Described train speed sensor handles to the Programmable Logic Controller of described control appliance the train speed transfer of data of gathering, and the frequency converter of described control appliance will be adjusted the unlatching and the rotating speed of the spray pump of described conveying equipment according to the Programmable Logic Controller result of described control appliance.
Further, also comprise train barcode recognition equipment and surface-monitoring equipment, described train barcode recognition equipment comprises a wheel detector, a ground-plane antenna and a collection main control system; Described surface-monitoring equipment train car license number also shows current license number.
Further, described spray equipment comprises swing arm, shower nozzle, rotating shaft, sensors A and sensor B; After described sensors A after being activated or described sensor B transmit signals to the Programmable Logic Controller of described control appliance, described motor B will be opened or stop to described control appliance according to result.
Further, described spray equipment also comprises swing arm rotary limit device A and swing arm rotary limit device B; When described swing arm rotated to the precalculated position, described swing arm rotary limit device A was triggered, and sent the Programmable Logic Controller that signal is given described control appliance, and described Programmable Logic Controller is assigned instruction, stopped described motor A operation, and described swing arm stops to move immediately; When described swing arm rotated to initial position, described swing arm rotary limit device B was triggered, and sent the Programmable Logic Controller that signal is given described control appliance, and described Programmable Logic Controller is assigned instruction, stopped motor A operation, and described swing arm stops to move immediately.
Further, described spray equipment also comprises lifting limited device A and lifting limited device B; When described swing arm rose to the extreme higher position, described lifting limited device A was triggered, and sent the Programmable Logic Controller that signal is given described control appliance, and described Programmable Logic Controller is assigned instruction, stopped described motor B operation, and described swing arm stops to move up immediately; When described swing arm dropped to extreme lower position, described lifting limited device B was triggered, and sent the Programmable Logic Controller that signal is given described control appliance, and described Programmable Logic Controller is assigned instruction, stopped motor B operation, and described swing arm stops to continue downwards to move immediately.
Further, the mixing plant of described liquid supply apparatus comprises an agitator tank liquid level sensor, when the liquid level in the described agitator tank is high, after described agitator tank liquid level sensor is activated, and send the Programmable Logic Controller that signal is given described control appliance, described Programmable Logic Controller is assigned instruction, stops small pump work; When the liquid level in the described agitator tank is low, after described agitator tank liquid level sensor is activated, and send the Programmable Logic Controller that signal is given described control appliance, described Programmable Logic Controller is assigned instruction, stop delivery pump or and unlatching small pump, mixer and drive conveying worm.
Further, the conveying equipment of described liquid supply apparatus comprises a sprayed tank liquid level sensor, when the sprayed tank liquid level is too high or too low, described sprayed tank liquid level sensor is activated, and send the Programmable Logic Controller that signal is given described control appliance, described Programmable Logic Controller is assigned instruction, stops or opening delivery pump work.
The control system of this spraying device of open coal car has following beneficial effect:
(1) the present invention is owing to handle the train speed transfer of data of gathering by train speed sensor to Programmable Logic Controller, and the frequency converter of control appliance will be adjusted the unlatching and the rotating speed of the spray pump of described conveying equipment according to the Programmable Logic Controller result of described control appliance.Therefore can control in real time dust suppressant sprinkling amount, avoid the waste of dust suppressant, provide cost savings.
(2) the present invention is owing to also comprise train barcode recognition equipment and surface-monitoring equipment, and the function that can collect and store the goods train essential information helps transportation management or reduces the expenditure of management cost.
Description of drawings
Fig. 1: the composition block diagram of the control system of spraying device of open coal car of the present invention;
Fig. 2: the parts combination schematic diagram of the control system of spraying device of open coal car of the present invention;
Fig. 3: the spray equipment plan structure figure of the control system of spraying device of open coal car of the present invention;
Fig. 4: the spray equipment structural representation of the control system of spraying device of open coal car of the present invention.
Description of reference numerals:
The 1-swing arm; The 2-shower nozzle; The 3-vertical rod; 5-train barcode recognition equipment; The 6-surface-monitoring equipment; The 7-control appliance; The 8-sprayed tank; The 9-conveying worm; The 10-mixer; The 11-agitator tank; The 12-replenisher tank; The 13-ball-cock assembly; The 14-small pump; The 15-delivery pump; 16-magnetic valve A; 17-magnetic valve B; 18-magnetic valve C; The 19-air pump; The 20-spray pump; The 21-flowmeter; 22-sprayed tank liquid level sensor; 23-agitator tank liquid level sensor; The 24-metal hose; The 25-conveyance conduit; The 26-sensors A; 27-sensor B; The 28-train speed sensor; 29-swing arm rotary limit device A; 30-swing arm rotary limit device B; 31-lifting limited device A; 32-lifting limited device B; The 33-nut; The 34-screw mandrel; 35-screw mandrel lifting main frame; 36-motor A; 37-motor B; The 38-worm screw; The 39-worm gear.
The specific embodiment
Below in conjunction with Fig. 1 to Fig. 4, the present invention will be further described:
As shown in Figure 1, a kind of control system of spraying device of open coal car comprises a control appliance 7, wherein mainly comprises Programmable Logic Controller and frequency converter; One liquid supply apparatus comprises water supplement apparatus, mixing plant and conveying equipment, is used for stirring, mixing, dilution and the transmission of coal dust depressor; One spray equipment is used for coal dust depressor is sprayed to the coal that moves coal car equably; One train speed sensor 28 is used for the train that travels is carried out tachometric survey.
Described train speed sensor 28 handles to the Programmable Logic Controller of described control appliance 7 the train speed transfer of data of gathering, and the frequency converter of described control appliance 7 will be adjusted the unlatching and the rotating speed of the spray pump 20 of described conveying equipment according to the Programmable Logic Controller result of described control appliance 7.Therefore can control in real time dust suppressant sprinkling amount, avoid the waste of dust suppressant, provide cost savings.
In addition, also comprise train barcode recognition equipment 5 and surface-monitoring equipment 6, described train barcode recognition equipment 5 comprises a wheel detector, a ground-plane antenna and a collection main control system; Described surface-monitoring equipment 6 train car license numbers also show current license number.Wheel detector has high anti-interfering performance, is stuck in the rail inboard with safe jig.Ground-plane antenna is installed between two sleepers of two rail central authorities, and its long limit parallel sleepers.Gathering main control system is installed in by the roadbed of rail.When train passes through, gather main control system after receiving the feedback signal of wheel detector, start the RF radio-frequency module, make its electronic tag send radiofrequency signal to the train bottom, behind the signal that receives tag reflection, discern, record train bar code information after the demodulation, decoding, processing, close the RF radio-frequency module after record is finished and stop emission signal, with the mode of serial communication the train bar code information is sent to next time of preparation for acquiring train behind the ground monitoring system.
Surface-monitoring equipment 6 is used for the equipment running status of whole system and process variable parameter are monitored in real time, and the manual operation button of each equipment is provided on monitoring interface.Further, surface-monitoring equipment also is used to receive the train bar code information that the train barcode recognition equipment is sent, and automatic report generation.Ground prison equipment comprises an industrial control host and a LCD.
In addition, flowmeter 21 and surface-monitoring equipment 4 are connected by signal, but present flow rate size in surface-monitoring equipment 4 display pipes.
As shown in Figure 2, the present invention mainly comprises spray equipment and liquid supply apparatus, and the described spray equipment that comprises comprises swing arm 1, shower nozzle 2, vertical rod 3 and transmission mechanism.Described liquid supply apparatus mainly comprises mixing plant, conveying equipment and water supplement apparatus; Described water supplement apparatus is connected with described mixing plant by pipeline, and described mixing plant is connected with described conveying equipment by pipeline, and described conveying equipment is connected with described spray equipment by pipeline.
Specifically, liquid supply apparatus is used for the stirring and the conveying of coal dust depressor.Liquid supply apparatus comprises mixing plant, conveying equipment and water supplement apparatus.
Mixing plant is used for interpolation, mixing, stirring and the splendid attire of coal dust depressor solid material.Mixing plant comprises an agitator tank 11, a mixer 10 and a conveying worm 9.Wherein agitator tank 11 is used for the splendid attire of coal dust depressor, and mixer 10 is used for the stirring of coal dust depressor solid material and water, and conveying worm 9 is used for the interpolation of coal dust depressor solid material.Mixing plant uses conveying worm 9 to pour coal car dust suppressant solid material into agitator tank 11 dilutions, wanting the limit to add the waterside during dilution fully stirs, coal dust depressor after fully stirring enters sprayed tank 8 by delivery pump 15 and stores to be painted, after treating that swing arm 1 moves into place, by spray pump 20 coal dust depressor is delivered to shower nozzle 2 and sprays operation.
The mixing plant of described liquid supply apparatus comprises an agitator tank liquid level sensor 23, when the liquid level in the described agitator tank 11 is high, after described agitator tank liquid level sensor 23 is activated, and send the Programmable Logic Controller that signal is given described control appliance 7, described Programmable Logic Controller is assigned instruction, stops small pump 14 work; When the liquid level in the described agitator tank 11 is low, after described agitator tank liquid level sensor 23 is activated, and send the Programmable Logic Controller that signal is given described control appliance 7, described Programmable Logic Controller is assigned instruction, stop delivery pump 15 or and unlatching small pump 14, mixer 10 and conveying worm 9.
Conveying equipment comprises sprayed tank 8, conveyance conduit 25, magnetic valve A16, delivery pump 15 and spray pump 20.Described delivery pump 15 is positioned on described sprayed tank 8 and the pipeline that described agitator tank 11 is connected, and described spray pump 20 is positioned on described sprayed tank 8 and the pipeline that described spray equipment is connected.When sprayed tank 8 liquid levels were low, control appliance 7 started delivery pump 15 dust suppressant in the agitator tank 11 is delivered to sprayed tank 8.
Described conveying equipment also comprises a sprayed tank liquid level sensor 22, when sprayed tank 8 liquid levels are too high or too low, described sprayed tank liquid level sensor 22 is activated, and send the Programmable Logic Controller that signal is given described control appliance 7, described Programmable Logic Controller is assigned instruction, stops or opening delivery pump 15 work.
Be connected by a metal hose 24 between described conveying equipment and the described spray equipment.This metal hose 24 is used to connect conveyance conduit 25 and swing arm 1, carries coal dust depressor liquid, can keep certain retractility when swing arm 1 rotation.
Water supplement apparatus comprises replenisher tank 12, ball-cock assembly 13 and small pump 14, and described small pump 14 is positioned on described water supplement apparatus and the pipeline that described mixing plant is connected.When replenisher tank 12 liquid levels were low, ball-cock assembly 13 was opened automatically and is carried out moisturizing.
As shown in Figure 3 and Figure 4, described spray equipment mainly comprises swing arm lowering or hoisting gear and swing arm whirligig.
Described swing arm whirligig comprises motor A36, worm screw 38, worm gear 39, rotating base, swing arm rotary limit device A29 and swing arm rotary limit device B30; Described motor A36 drives described worm screw 38 and rotates, and described worm screw 38 and worm gear 39 are mutual cooperates the promotion rotating base and be positioned at described swing arm 1 on the described rotating base and the rotation of vertical rod 3.
When described swing arm 1 rotates to the precalculated position, described swing arm rotary limit device A29 is triggered, and sends the Programmable Logic Controller that signal is given described control appliance 7, and described Programmable Logic Controller is assigned instruction, stop described motor A36 operation, described swing arm 1 stops to move immediately.The swing arm 1 of this moment will depart from rail, so that train head's safety is passed through.When described swing arm 1 rotates to initial position, described swing arm rotary limit device B30 is triggered, and sends the Programmable Logic Controller that signal is given described control appliance 7, and described Programmable Logic Controller is assigned instruction, stop motor A36 operation, described swing arm 1 stops to move immediately.The swing arm 1 of this moment will return to initial state, continue to spray coal dust depressor.
Described swing arm lowering or hoisting gear comprises: motor B37, nut 33, screw mandrel 34, screw mandrel lifting main frame 35, sensors A 26 and sensor B27; Described sensors A 26 and sensor B27 are arranged on described vertical rod 3 tops, described screw mandrel lifting main frame 35 rotates the revolving force that the revolving force of horizontal axis is transformed into vertical direction by described motor B37, and described screw mandrel 34 drives described nut 33 under the revolving force effect of described vertical direction and swing arm 1 moves up and down.Swing arm 1 moves up and down in the process, after described sensors A 26 after being activated or described sensor B27 transmit signals to the Programmable Logic Controller of described control appliance 7, described motor B37 will be opened or stop to described control appliance 7 according to result, thus the upright position of control swing arm 1.Described swing arm 1 and shower nozzle 2 will be in best sprinkling position.
In addition, described swing arm lowering or hoisting gear also comprises lifting limited device A31 and lifting limited device B32; When described swing arm 1 rises to the extreme higher position, described lifting limited device A31 is triggered, and sends the Programmable Logic Controller that signal is given described control appliance 7, and described Programmable Logic Controller is assigned instruction, stop described motor B37 operation, described swing arm 1 stops to move up immediately; When described swing arm 1 drops to extreme lower position, described lifting limited device B32 is triggered, and sends the Programmable Logic Controller that signal is given described control appliance 7, and described Programmable Logic Controller is assigned instruction, stop motor B37 operation, described swing arm 1 stops to continue downwards to move immediately.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obvious realization of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; or design of the present invention and technical scheme are directly applied to other occasions without improving, all in protection scope of the present invention.
Claims (7)
1. the control system of a spraying device of open coal car is characterized in that: comprise a control appliance (7), wherein mainly comprise Programmable Logic Controller and frequency converter;
One liquid supply apparatus comprises water supplement apparatus, mixing plant and conveying equipment, is used for stirring, mixing, dilution and the transmission of coal dust depressor;
One spray equipment is used for coal dust depressor is sprayed to the coal that moves coal car equably;
One train speed sensor (28) is used for the train that travels is carried out tachometric survey;
Described train speed sensor (28) handles to the Programmable Logic Controller of described control appliance (7) the train speed transfer of data of gathering, and the frequency converter of described control appliance (7) will be adjusted the unlatching and the rotating speed of the spray pump (20) of described conveying equipment according to the Programmable Logic Controller result of described control appliance (7).
2. according to the control system of the described spraying device of open coal car of claim 1, it is characterized in that: also comprise train barcode recognition equipment (5) and surface-monitoring equipment (6), described train barcode recognition equipment (5) comprises a wheel detector, a ground-plane antenna and a collection main control system; Described surface-monitoring equipment (6) train car license number also shows current license number.
3. according to the control system of claim 1 or 2 described spraying device of open coal car, it is characterized in that: described spray equipment comprises swing arm (1), shower nozzle (2), rotating shaft (3), sensors A (26) and sensor B (27); After described sensors A (26) after being activated or described sensor B (27) transmit signals to the Programmable Logic Controller of described control appliance (7), described motor B (37) will be opened or stop to described control appliance (7).
4. according to the control system of the described spraying device of open coal car of claim 3, it is characterized in that: described spray equipment also comprises swing arm rotary limit device A (29) and swing arm rotary limit device B (30); When described swing arm (1) when rotating to the precalculated position, described swing arm rotary limit device A (29) is triggered, and send the Programmable Logic Controller that signal is given described control appliance (7), described Programmable Logic Controller is assigned instruction, stop described motor A (36) operation, described swing arm (1) stops to move immediately; When described swing arm (1) when rotating to initial position, described swing arm rotary limit device B (30) is triggered, and sends the Programmable Logic Controller that signal is given described control appliance (7), and described Programmable Logic Controller is assigned instruction, stop motor A (36) operation, described swing arm (1) stops to move immediately.
5. according to the control system of the described spraying device of open coal car of claim 4, it is characterized in that: described spray equipment also comprises lifting limited device A (31) and lifting limited device B (32); When described swing arm (1) when rising to the extreme higher position, described lifting limited device A (31) is triggered, and send the Programmable Logic Controller that signal is given described control appliance (7), described Programmable Logic Controller is assigned instruction, stop described motor B (37) operation, described swing arm (1) stops to move up immediately; When described swing arm (1) when dropping to extreme lower position, described lifting limited device B (32) is triggered, and send the Programmable Logic Controller that signal is given described control appliance (7), described Programmable Logic Controller is assigned instruction, stop motor B (37) operation, described swing arm (1) stops to continue downwards to move immediately.
6. according to the control system of the described spraying device of open coal car of claim 5, it is characterized in that: the mixing plant of described liquid supply apparatus comprises an agitator tank liquid level sensor (23), when the liquid level in the described agitator tank (11) is high, after described agitator tank liquid level sensor (23) is activated, and send the Programmable Logic Controller that signal is given described control appliance (7), described Programmable Logic Controller is assigned instruction, stops small pump (14) work; When the liquid level in the described agitator tank (11) is low, after described agitator tank liquid level sensor (23) is activated, and send the Programmable Logic Controller that signal is given described control appliance (7), described Programmable Logic Controller is assigned instruction, stop delivery pump (15) or and unlatching small pump (14), mixer (10) and conveying worm (9).
7. according to the control system of the described spraying device of open coal car of claim 6, it is characterized in that: the conveying equipment of described liquid supply apparatus comprises a sprayed tank liquid level sensor (22), when sprayed tank (8) when liquid level is too high or too low, described sprayed tank liquid level sensor (22) is activated, and send the Programmable Logic Controller that signal is given described control appliance (7), described Programmable Logic Controller is assigned instruction, stops or opening delivery pump (15) work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101345881A CN101884964A (en) | 2010-03-26 | 2010-03-26 | Control system of spraying device of open coal car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101345881A CN101884964A (en) | 2010-03-26 | 2010-03-26 | Control system of spraying device of open coal car |
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| CN101884964A true CN101884964A (en) | 2010-11-17 |
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| CN2010101345881A Pending CN101884964A (en) | 2010-03-26 | 2010-03-26 | Control system of spraying device of open coal car |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102416369A (en) * | 2011-09-20 | 2012-04-18 | 中联重科股份有限公司 | Electric control system and method for air-assisted sprayer and greening spraying vehicle |
| CN103894301A (en) * | 2012-12-28 | 2014-07-02 | 北京精诚博桑科技有限公司 | Control mechanism and control system for dust suppressant spraying records |
| CN108712405A (en) * | 2018-05-07 | 2018-10-26 | 武汉康慧然信息技术咨询有限公司 | The long-range sending method of bridge tunnel monitoring information based on Internet of Things |
| CN108787211A (en) * | 2018-08-02 | 2018-11-13 | 中国三峡建设管理有限公司 | A kind of smoke reducing dust lowering system and method towards the areas concentration Zhuan Zha |
| CN114210481A (en) * | 2021-12-10 | 2022-03-22 | 鄂尔多斯市鑫聚源供应链管理有限责任公司 | Coal car antifreeze agent spraying method and antifreeze agent spraying device |
-
2010
- 2010-03-26 CN CN2010101345881A patent/CN101884964A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102416369A (en) * | 2011-09-20 | 2012-04-18 | 中联重科股份有限公司 | Electric control system and method for air-assisted sprayer and greening spraying vehicle |
| CN103894301A (en) * | 2012-12-28 | 2014-07-02 | 北京精诚博桑科技有限公司 | Control mechanism and control system for dust suppressant spraying records |
| CN103894301B (en) * | 2012-12-28 | 2016-05-11 | 北京精诚博桑科技有限公司 | A kind of dust suppressant sprays record controls mechanism and control system |
| CN108712405A (en) * | 2018-05-07 | 2018-10-26 | 武汉康慧然信息技术咨询有限公司 | The long-range sending method of bridge tunnel monitoring information based on Internet of Things |
| CN108712405B (en) * | 2018-05-07 | 2020-11-24 | 上海市地质勘查技术研究院 | Bridge tunnel monitoring information remote sending method based on Internet of things |
| CN108787211A (en) * | 2018-08-02 | 2018-11-13 | 中国三峡建设管理有限公司 | A kind of smoke reducing dust lowering system and method towards the areas concentration Zhuan Zha |
| CN108787211B (en) * | 2018-08-02 | 2024-04-19 | 中国三峡建工(集团)有限公司 | Smoke prevention and dust reduction system and method for slag concentration area |
| CN114210481A (en) * | 2021-12-10 | 2022-03-22 | 鄂尔多斯市鑫聚源供应链管理有限责任公司 | Coal car antifreeze agent spraying method and antifreeze agent spraying device |
| CN114210481B (en) * | 2021-12-10 | 2024-03-01 | 鄂尔多斯市鑫聚源供应链管理有限责任公司 | Antifreezing agent spraying method and antifreezing agent spraying device for coal vehicle |
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Application publication date: 20101117 |