CN202300477U - Automatic spraying dust-reducing control device for transshipping points - Google Patents
Automatic spraying dust-reducing control device for transshipping points Download PDFInfo
- Publication number
- CN202300477U CN202300477U CN2011204100829U CN201120410082U CN202300477U CN 202300477 U CN202300477 U CN 202300477U CN 2011204100829 U CN2011204100829 U CN 2011204100829U CN 201120410082 U CN201120410082 U CN 201120410082U CN 202300477 U CN202300477 U CN 202300477U
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- electromagnetic valve
- control device
- pressure sensor
- plc controller
- hydraulic pressure
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Abstract
The utility model relates to an automatic spraying dust-reducing control device for transshipping points. During the process of transshipping coal, if the coal dust is not processed, the safe production of mines is damaged, and the health of workers is injured. The automatic spraying dust-reducing control device comprises a PLC (Programmable logic Controller), an electromagnetic valve, a spray nozzle, a water supply pipeline and a belt conveyor starter and is characterized in that: the automatic spraying dust-reducing control device further comprises a front water pressure sensor and a start-stop sensor which are respectively connected with the PLC through signal wires, wherein the front water pressure sensor is arranged on the water supply pipeline at the upstream of the electromagnetic valve, and the start-stop sensor belongs to a current transformer and is connected onto a power cable of a belt drive motor; and the PLC decides whether to activate the belt conveyor starter or not according to the condition whether signals sent by the front water pressure sensor are normal or not, and decides whether to open the electromagnetic valve according to the condition whether signals sent by the start-stop sensor are normal or not. With the adoption of the automatic spraying dust-reducing control device for the transshipping points, the condition that no production is carried out due to unsafety is truly achieved, so that the automatic spraying dust-reducing control device is suitable for various transshipping points.
Description
Technical field
The utility model relates to a kind of transfer point auto spraying depositing dust control device.
Background technology
The coal of producing is being changed over to by coal-face in the process of coal bunker; Can be by scratch board conveyor, elevating conveyor, belt conveyor through reprinting many times, in the reprinting process, coal through repeatedly stir, fragmentation; Whenever once reprint, just can produce new coal dust.Wherein a part of coal dust can with ambient air caused by relative motion shear flow; Be suspended in the air; The fine coal dust that originally was crushed on simultaneously the bottom again downwards by the induced draft band that coal produced that falls at a high speed, when air-flow arrived the another one belt conveyor, coal dust recoiled into coming up; Fill the air the tunnel, also can form floating dust.If coal dust is not handled, will enlarge pollution range, deepen degree of contamination, will cause very big loss to the safety in production and the workers health of mine.
Development and the synthesis dust prevention automatization level technological along with mine synthesis dust prevention improve constantly; The transfer point atomization mechanism that various ways such as mechanical lance formula, mechanical pressure lever type, microseismic activity control successively occurred; But these the spraying all can not with the effective locking of belt conveyor starting drive; Can not guarantee that belt conveyor starts and spraying is carried out synchronously, can not reach expection synthesis dust prevention target.
The utility model content
The technical problem that the utility model will solve is the above-mentioned defective that how to overcome prior art, and a kind of transfer point auto spraying depositing dust control device is provided.
For solving the problems of the technologies described above, this transfer point auto spraying depositing dust control device comprises PLC controller, electromagnetic valve, spraying nozzle, supply channel and belt conveyor starting drive; Wherein electromagnetic valve is arranged on the supply channel, and spraying nozzle is arranged on the supply channel end, and points to transfer point; Electromagnetic valve, belt conveyor starting drive link to each other with the PLC controller respectively; It is characterized in that: hydraulic pressure sensor and start-stop sensor before it also comprises, the two links to each other with the PLC controller through holding wire respectively, and wherein preceding hydraulic pressure sensor is arranged on the supply channel at the electromagnetic valve upper reaches; The start-stop sensor belongs to current transformer; Be connected on the power cable of belt drives motor, whether the PLC controller is normal through the signal that preceding hydraulic pressure sensor sends, and whether decision activates said belt conveyor starting drive; Whether the signal that sends through the start-stop sensor is normal, and whether decision opens electromagnetic valve.
During use, it is normal sensing the signal that hydraulic pressure sensor sends when the PLC controller, promptly be hydraulic pressure just often, activate said belt conveyor starting drive, otherwise do not activate said belt conveyor starting drive.Send signal when sensing the start-stop sensor through the PLC controller, open electromagnetic valve automatically, carry out atomizing de-dusting, if the PLC controller is not sensed the start-stop sensor and sent signal, then be judged as, belt conveyor can't be opened because of certain fault, does not carry out atomizing de-dusting.So design realizes having water that electricity, the anhydrous function of then not having electricity, having electricity then to supply water, have a power failure and then cut off the water are then arranged.
As optimization, it also comprises the back hydraulic pressure sensor, and this back hydraulic pressure sensor is arranged on the supply channel in electromagnetic valve downstream; And communicate with the PLC controller, after opening electromagnetic valve, when then the hydraulic signal that sends of hydraulic pressure sensor is undesired; The PLC controller cuts out electromagnetic valve, stops atomizing de-dusting.
As optimization, said electromagnetic valve also is furnished with parallelly connected bypass valve.So design in case of necessity can the manual manipulation atomizing de-dusting, and can prevent the problem because of this transfer point auto spraying depositing dust control device, the fault that causes belt to open.
The utility model transfer point auto spraying depositing dust control device receives coherent signals such as hydraulic pressure sensor signal and belt run signal through the PLC controller; The switch of control belt conveyor and the switch of water supply electromagnetic valve realize having water that electricity, the anhydrous function of then not having electricity, having electricity then to supply water, have a power failure and then cut off the water are then arranged.Fault has appearred in any one link, and whole device promptly can't move, and has really accomplished " dangerous do not produce " to be applicable to various collieries transfer point.
Description of drawings
Below in conjunction with accompanying drawing this transfer point auto spraying depositing dust control device is described further:
Fig. 1 is the PLC controller flow chart of this transfer point auto spraying depositing dust control device;
Fig. 2 is the structural representation of this transfer point auto spraying depositing dust control device.
Among the figure: 1 is that PLC controller, 2 is that electromagnetic valve, 3 is that spraying nozzle, 4 is that supply channel, 5 is that belt conveyor starting drive, 6 is that hydraulic pressure sensor, 8 was that start-stop sensor, 9 is that parallelly connected bypass valve, 10 is a belt conveyor after preceding hydraulic pressure sensor, 7 was.
The specific embodiment
Embodiment one: as shown in Figure 1; This transfer point auto spraying depositing dust control device comprises PLC controller 1, electromagnetic valve 2, spraying nozzle 3, supply channel 4 and belt conveyor starting drive 5; Wherein electromagnetic valve 2 is arranged on the supply channel 4; Spraying nozzle 3 is arranged on the supply channel end, and points to transfer point, and electromagnetic valve 2, belt conveyor starting drive 5 link to each other with PLC controller 1 respectively; It is characterized in that: it also comprises preceding hydraulic pressure sensor 6, back hydraulic pressure sensor 7 and start-stop sensor 8; The three links to each other with the PLC controller through holding wire respectively, and wherein preceding hydraulic pressure sensor is arranged on the supply channel at the electromagnetic valve upper reaches, and said back hydraulic pressure sensor is arranged on the supply channel in electromagnetic valve downstream.
Start-stop sensor 8 belongs to current transformer, is connected on the power cable of belt drives motor, and whether PLC controller 1 is normal through the signal that preceding hydraulic pressure sensor 6 sends, and whether decision activates said belt conveyor starting drive 5; Whether the signal that sends through start-stop sensor 8 is normal, and whether decision opens electromagnetic valve 2.Said electromagnetic valve 2 also is furnished with parallelly connected bypass valve 9.
Install parallelly connected bypass valve 9 additional, on the one hand can the manual manipulation atomizing de-dusting, can prevent on the other hand to cause occurring the fault that belt conveyor 10 can't normally be opened because of electromagnetic valve 2 damages or the problem of other auto spraying depositing dust control device.
As shown in Figure 2; When electromagnetic valve 2 influent side supply channels 4 had water supply, hydraulic pressure sensor 6 can send the water signal and pass to PLC controller 1, after PLC controller 1 is received signal; Through the power supply " activation " of locking cable with belt conveyor starting drive 5; This moment, belt conveyor 10 drivers pressed " startup " button, and belt conveyor 10 can turn round, and start-stop sensor 7 monitors the conveyor starting current and passes the signal along to PLC controller 1 simultaneously; PLC controller 1 is opened electromagnetic valve 2 through control signal, sprays.
Under electromagnetic valve 2 openings, hydraulic pressure sensor 6 monitoring electromagnetic valves 2 water outlet sides have or not the regimen condition, and this moment is if there is water; Then belt keeps running; If in case anhydrous situation occurs, then send signal and pass to PLC controller 1, PLC controller 1 moves through the locking arrestment;
When electromagnetic valve 2 is opened; When the influent side supply channel does not have water supply; Hydraulic pressure sensor 6 can send anhydrous signal and pass to PLC controller 1, and after PLC controller 1 was received signal, the power supply of belt conveyor 10 just can not be " activated "; This moment, the conveyor driver pressed " startup " button, and belt conveyor 10 also can't be unlocked.
When belt shut down, 6 monitorings of start-stop sensor were less than the conveyor starting current and pass the signal along to PLC controller 1, and PLC controller 1 cuts out electromagnetic valve 2 through control signal, promptly stops spraying.
Claims (3)
1. a transfer point auto spraying depositing dust control device comprises PLC controller, electromagnetic valve, spraying nozzle, supply channel and belt conveyor starting drive, and wherein electromagnetic valve is arranged on the supply channel; Spraying nozzle is arranged on the supply channel end; And the sensing transfer point, electromagnetic valve, belt conveyor starting drive link to each other with the PLC controller respectively, it is characterized in that: hydraulic pressure sensor and start-stop sensor before it also comprises; The two links to each other with the PLC controller through holding wire respectively; Wherein preceding hydraulic pressure sensor is arranged on the supply channel at the electromagnetic valve upper reaches, and the start-stop sensor belongs to current transformer, is connected on the power cable of belt drives motor; Whether the PLC controller is normal through the signal that preceding hydraulic pressure sensor sends, and whether decision activates said belt conveyor starting drive; Whether the signal that sends through the start-stop sensor is normal, and whether decision opens electromagnetic valve.
2. transfer point auto spraying depositing dust control device as claimed in claim 1; It is characterized in that: it also comprises the back hydraulic pressure sensor, and this back hydraulic pressure sensor is arranged on the supply channel in electromagnetic valve downstream, and communicates with the PLC controller; After opening electromagnetic valve; When then the hydraulic signal that sends of hydraulic pressure sensor was undesired, the PLC controller cut out electromagnetic valve, stops atomizing de-dusting.
3. according to claim 1 or claim 2 transfer point auto spraying depositing dust control device, it is characterized in that: said electromagnetic valve also is furnished with parallelly connected bypass valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204100829U CN202300477U (en) | 2011-10-25 | 2011-10-25 | Automatic spraying dust-reducing control device for transshipping points |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204100829U CN202300477U (en) | 2011-10-25 | 2011-10-25 | Automatic spraying dust-reducing control device for transshipping points |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202300477U true CN202300477U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204100829U Expired - Fee Related CN202300477U (en) | 2011-10-25 | 2011-10-25 | Automatic spraying dust-reducing control device for transshipping points |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202300477U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594939A (en) * | 2014-12-05 | 2015-05-06 | 徐州大屯工贸实业公司 | Mining intelligent secondary negative pressure spraying dust-settling device |
| CN108392922A (en) * | 2018-04-12 | 2018-08-14 | 天津港远航矿石码头有限公司 | A kind of micro- water mist dust fall water injection system for belt of belt conveyor |
-
2011
- 2011-10-25 CN CN2011204100829U patent/CN202300477U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594939A (en) * | 2014-12-05 | 2015-05-06 | 徐州大屯工贸实业公司 | Mining intelligent secondary negative pressure spraying dust-settling device |
| CN108392922A (en) * | 2018-04-12 | 2018-08-14 | 天津港远航矿石码头有限公司 | A kind of micro- water mist dust fall water injection system for belt of belt conveyor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20181025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |