CN201644292U - Control system of open coal wagon spraying device - Google Patents
Control system of open coal wagon spraying device Download PDFInfo
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- CN201644292U CN201644292U CN2010201436852U CN201020143685U CN201644292U CN 201644292 U CN201644292 U CN 201644292U CN 2010201436852 U CN2010201436852 U CN 2010201436852U CN 201020143685 U CN201020143685 U CN 201020143685U CN 201644292 U CN201644292 U CN 201644292U
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- programmable logic
- logic controller
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- 239000003245 coal Substances 0.000 title claims abstract description 38
- 238000005507 spraying Methods 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 238000003756 stirring Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims description 36
- 239000002817 coal dust Substances 0.000 claims description 35
- 238000012544 monitoring process Methods 0.000 claims description 14
- 239000013589 supplement Substances 0.000 claims description 8
- 238000010790 dilution Methods 0.000 claims description 5
- 239000012895 dilution Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 238000007865 diluting Methods 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 13
- 238000007726 management method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000011343 solid material Substances 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 4
- 230000003137 locomotive effect Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241001669679 Eleotris Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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Abstract
The utility model discloses a control system of an open coal wagon spraying device, which comprises a control device, a liquid supply device, a spraying device for evenly spraying coal dust-depressor on coal in a running coal wagon and a wagon speed sensor for measuring the speed of the running coal wagon. The control device mainly comprises a programmable controller and a frequency converter. The liquid supply device comprises a water replenishing device, a stirring device and a conveying device for stirring, mixing, diluting and transporting the coat dust-depressor. In the utility model, the collected wagon speed data is transmitted to the programmable controller to process through the wagon speed sensor, and the frequency converter of the control device adjusts the opening and the rotation speed of the spraying pump of the conveying device according to the programmable controller processing result of the control device. The spraying volume of the dust-depressor can be controlled in real time, the waste of the dust-depressor is avoided and the cost is saved.
Description
Technical field
The utility model 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.
The utility model content
The utility model 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 utility model 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 is used for the liquid supply apparatus of stirring, mixing, dilution and the transmission of coal dust depressor, comprises water supplement apparatus, mixing plant and conveying equipment, one be used for coal dust depressor be sprayed to equably the operation coal car coal on spray equipment; One is used for the train that travels is carried out the train speed sensor of tachometric survey; Described train speed sensor is connected by signal with described control appliance, 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; Described sensors A is connected with the Programmable Logic Controller signal of described control appliance with described sensor B, and described control appliance is connected with motor B signal simultaneously.
Further, described spray equipment also comprises lifting limited device A and lifting limited device B; Described lifting limited device A and lifting limited device B are connected with the Programmable Logic Controller signal of described control appliance.
Further, described spray equipment also comprises swing arm rotary limit device A and swing arm rotary limit device B; Described swing arm rotary limit device A is connected with the Programmable Logic Controller signal of described control appliance with swing arm rotary limit device B, and described control appliance is connected with the motor a-signal.
Further, the mixing plant of described liquid supply apparatus comprises an agitator tank liquid level sensor, described agitator tank liquid level sensor is connected with the Programmable Logic Controller signal of described control appliance, and described control appliance is connected with small pump, delivery pump, mixer and conveying worm signal simultaneously.
Further, the conveying equipment of described liquid supply apparatus comprises a sprayed tank liquid level sensor, and described sprayed tank liquid level sensor is connected with the Programmable Logic Controller signal of described control appliance, and described control appliance is connected with the delivery pump signal simultaneously.
The control system of this spraying device of open coal car has following beneficial effect:
(1) the utility model 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 utility model 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 the utility model spraying device of open coal car;
Fig. 2: the parts combination schematic diagram of the control system of the utility model spraying device of open coal car;
Fig. 3: the spray equipment plan structure figure of the control system of the utility model spraying device of open coal car;
Fig. 4: the spray equipment structural representation of the control system of the utility model spraying device of open coal car.
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 utility model is described further:
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 utility model 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 liquid supply apparatus comprises an agitator tank liquid level sensor 23, when the liquid level in the 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 operating 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 utility model has been carried out exemplary description above; obvious realization of the present utility model is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present utility model and technical scheme to carry out; or design of the present utility model and technical scheme are directly applied to other occasions without improving, all in protection domain of the present utility model.
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 is used for the liquid supply apparatus of stirring, mixing, dilution and the transmission of coal dust depressor, comprises water supplement apparatus, mixing plant and conveying equipment;
One be used for coal dust depressor be sprayed to equably the operation coal car coal on spray equipment;
One is used for the train that travels is carried out the train speed sensor (28) of tachometric survey;
Described train speed sensor (28) is connected by signal with described control appliance (7), 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); Described sensors A (26) is connected with the Programmable Logic Controller signal of described control appliance (7) with described sensor B (27), and described control appliance (7) is connected with motor B (37) signal simultaneously.
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 lifting limited device A (31) and lifting limited device B (32); Described lifting limited device A (31) and lifting limited device B (32) are connected with the Programmable Logic Controller signal of described control appliance (7).
5. 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); Described swing arm rotary limit device A (29) is connected with the Programmable Logic Controller signal of described control appliance (7) with swing arm rotary limit device B (30), and described control appliance (7) is connected with motor A (36) signal.
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), described agitator tank liquid level sensor (23) is connected with the Programmable Logic Controller signal of described control appliance (7), and described control appliance (7) is connected with small pump (14), delivery pump (15), mixer (10) and conveying worm (9) signal simultaneously.
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), described sprayed tank liquid level sensor (22) is connected with the Programmable Logic Controller signal of described control appliance (7), and described control appliance (7) is connected with delivery pump (15) signal simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201436852U CN201644292U (en) | 2010-03-26 | 2010-03-26 | Control system of open coal wagon spraying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201436852U CN201644292U (en) | 2010-03-26 | 2010-03-26 | Control system of open coal wagon spraying device |
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| Publication Number | Publication Date |
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| CN201644292U true CN201644292U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201436852U Expired - Fee Related CN201644292U (en) | 2010-03-26 | 2010-03-26 | Control system of open coal wagon spraying device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641678A (en) * | 2012-04-28 | 2012-08-22 | 北京中盛益世环保科技有限公司 | Powder liquid preparation apparatus and dust suppressant-spraying vehicle |
| CN106945990A (en) * | 2017-05-05 | 2017-07-14 | 中国矿业大学 | A kind of closed control dust pelletizing system of belt conveyor transfer point |
| CN107128645A (en) * | 2017-05-05 | 2017-09-05 | 中国矿业大学 | A kind of closed control dust pelletizing system of belt conveyor transfer point and dust removal method |
| CN107961919A (en) * | 2018-01-16 | 2018-04-27 | 华东交通大学 | A kind of Railway Coal transports flusher |
| CN110575923A (en) * | 2018-06-11 | 2019-12-17 | 杭州盛忆镐科技有限公司 | anti-icing agent automatic spray equipment |
| CN113648755A (en) * | 2021-08-28 | 2021-11-16 | 徐州国晟智能科技有限公司 | Railway transportation spraying dust-settling system for coal mining |
-
2010
- 2010-03-26 CN CN2010201436852U patent/CN201644292U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641678A (en) * | 2012-04-28 | 2012-08-22 | 北京中盛益世环保科技有限公司 | Powder liquid preparation apparatus and dust suppressant-spraying vehicle |
| CN102641678B (en) * | 2012-04-28 | 2014-05-28 | 北京中盛益世环保科技有限公司 | Powder liquid preparation apparatus and dust suppressant-spraying vehicle |
| CN106945990A (en) * | 2017-05-05 | 2017-07-14 | 中国矿业大学 | A kind of closed control dust pelletizing system of belt conveyor transfer point |
| CN107128645A (en) * | 2017-05-05 | 2017-09-05 | 中国矿业大学 | A kind of closed control dust pelletizing system of belt conveyor transfer point and dust removal method |
| CN106945990B (en) * | 2017-05-05 | 2019-03-12 | 中国矿业大学 | A kind of closed control dust pelletizing system of belt conveyor transfer point |
| CN107961919A (en) * | 2018-01-16 | 2018-04-27 | 华东交通大学 | A kind of Railway Coal transports flusher |
| CN110575923A (en) * | 2018-06-11 | 2019-12-17 | 杭州盛忆镐科技有限公司 | anti-icing agent automatic spray equipment |
| CN113648755A (en) * | 2021-08-28 | 2021-11-16 | 徐州国晟智能科技有限公司 | Railway transportation spraying dust-settling system for coal mining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhonghao Guoye (Bejing) Science and Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20120326 |