CN202400491U - Coal chute pneumatic unblocking device capable of realizing automatic control - Google Patents
Coal chute pneumatic unblocking device capable of realizing automatic control Download PDFInfo
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- CN202400491U CN202400491U CN2012200201223U CN201220020122U CN202400491U CN 202400491 U CN202400491 U CN 202400491U CN 2012200201223 U CN2012200201223 U CN 2012200201223U CN 201220020122 U CN201220020122 U CN 201220020122U CN 202400491 U CN202400491 U CN 202400491U
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Abstract
The utility model relates to a coal chute pneumatic unblocking device capable of realizing automatic control and aims to solve the problems that in the conventional device, the specific location of coal blockage cannot be detected, so the layer-by-layer unblocking cannot be done according to the coal blockage conditions of different locations in the coal chute, and the automatic control cannot be realized. The unblocking device comprises a control module and a pneumatic execution module, wherein the control module comprises an upper computer and a plurality of execution terminal modules, and each execution terminal module comprises a PLC, a plurality of detectors and a plurality of electromagnetic valves; the pneumatic execution module comprises a gas inlet main pipe, a plurality of gas-distributing pipes and a plurality of nozzles; the upper computer is connected with the PLC of each execution terminal module by a serial data communication bus, the coal blockage signal input end of the PLC is connected with the coal blockage signal output end of a raw coal bunker, the coal feeder shutdown signal input end of the PLC is connected with the shutdown signal output end of a coal feeder, and detectors are used for detecting the pressure of each gas-distributing pipe. The unblocking device is applied to power plants.
Description
Technical field
The utility model relates to a kind ofly can realize the pneumatic block clearing device of automatically controlled coal spout.
Background technology
Coal chute below the power plant run coal bin is commonly called as coal spout, and the coal spout obstruction can cause the coal breakage flow to reduce or the conveyer broken coal, causes coal mill can't normally advance coal, produce coal, and boiler can't normal combustion, even the consequence of blowing out.The pneumatic block clearing device of existing coal spout adopts pressure gas that the coal body of fluffy coal or obstruction coal spout is dredged; Fast, convenient and safe; But can not carry out automatic block clearing according to the diverse location chute blockage situation in the coal spout; Each block clearing needs the manual activation gas ejector pipe to carry out block clearing, both waste of manpower resources, and can not be to the targetedly clear coal in chute blockage position.
The utility model content
The utility model is in order to solve the particular location that conventional device can not detect chute blockage; Thereby can not carry out block clearing successively according to the chute blockage situation of diverse location in the coal spout; And can not realize that automatically controlled is not enough; What propose a kind ofly can detect the chute blockage position, according to the chute blockage position to coal spout carry out block clearing successively can the pneumatic block clearing device of automatically controlled.
The pneumatic block clearing device of the coal spout of the utility model comprises control module and pneumatic execution module; Control module comprises control module and pneumatic execution module; Control module comprises upper computer and a plurality of execution terminal module; Each is carried out terminal module and comprises PLC, a plurality of detector and a plurality of electromagnetic valve, and pneumatic execution module comprises the female pipe of air inlet, a plurality of gas-distributing pipe and a plurality of nozzle, and upper computer is connected with each PLC that carries out terminal module through serial data communications busses; Each control signal output ends of PLC is connected with the signal input end of an electromagnetic valve; Each detection signal input end of PLC is connected with the detection signal mouth of a detector, and the disconnected coal signal input part of PLC is connected with the disconnected coal signal output part of run coal bin, and the feeder shutdown signal input end of PLC is connected with the feeder shutdown signal mouth of feeder; The import of each gas-distributing pipe all is communicated with the female pipe of air inlet; Electromagnetic valve one by one is installed on each gas-distributing pipe, and the exit end of each gas-distributing pipe is connected with a nozzle, and said detector is used to detect the pressure by air pressure in each gas-distributing pipe.
The utility model has solved the position that coal spout below the power plant run coal bin can not detect chute blockage; Can not carry out block clearing successively to the chute blockage position in the coal spout, and can not the automatically controlled problem, can be set to manually control and automatic guidance; Chute blockage in coal spout point is detected; Carry out block clearing successively to the chute blockage point, and regularly coal spout is carried out block clearing, practical.
Description of drawings
Fig. 1 and Fig. 2 are the electrical block diagrams of the utility model, and Fig. 3 is the structural representation of the utility model.
The specific embodiment
The specific embodiment one: combine Fig. 1, Fig. 2 and Fig. 3 that this embodiment is described; Can comprise control module and pneumatic execution module by the pneumatic block clearing device of automatically controlled coal spout; Control module comprises upper computer 6 and a plurality of execution terminal modules; Each is carried out terminal module and comprises PLC7, a plurality of detector 5 and a plurality of electromagnetic valve 3, and pneumatic execution module comprises air inlet mother pipe 1, a plurality of gas-distributing pipe 2 and a plurality of nozzle 4, and upper computer 6 is connected with each PLC7 that carries out terminal module through serial data communications busses; Each control signal output ends of PLC7 is connected with the signal input end of an electromagnetic valve; Each detection signal input end of PLC7 is connected with the detection signal mouth of a detector 5, and the disconnected coal signal input part of PLC7 is connected with the disconnected coal signal output part of run coal bin, and the feeder shutdown signal input end of PLC7 is connected with the feeder shutdown signal mouth of feeder; The import of each gas-distributing pipe 2 all is communicated with the female pipe 1 of air inlet; Electromagnetic valve 3 one by one is installed on each gas-distributing pipe 2, and the exit end of each gas-distributing pipe 2 is connected with a nozzle 4, and said detector 5 is used to detect the pressure by air pressure in each gas-distributing pipe.
In this embodiment, upper computer 6 receives the status information that PLC7 transmits, and said status information is shown output; Said status information comprises: whether the status information of each electromagnetic valve 3 of this PLC7 control, run coal bin disconnected coal information, feeder outage information whether, and each carries out the mode of operation of the whole coal spouts in terminal module;
Upper computer 6 sends instruction through serial data communications busses to any PLC7, and control PLC7 realizes corresponding control;
PLC7 also sends the switch of instruction triggers corresponding solenoid valve 3, and then realization respective nozzle 4 is carried out jet work;
PLC7 judges whether to stop up according to the detection signal of the detector 5 that receives, if control corresponding solenoid valve 3 control nozzles 4 carry out work; Do not have clear and coherently if once spray coal road, back, then continue successively to spray, clear and coherent until the coal road;
PLC is after certain nozzle of control 4 is jet; Detect the pressure signal in these nozzle 4 cooresponding gas-distributing pipes through detector 5, and judge whether the block clearing success, if success according to this pressure signal; Then stop the jet work of respective nozzle 4; Otherwise it is jet to control this nozzle 4 once more, up to the block clearing success;
PLC7 triggers the switch of electromagnetic valve 3, regularly carries out once jet work: every at a distance from 24 hours, starting nozzle 4 purges once;
When PLC7 received the feeder shutdown signal of feeder, all devices of carrying out the terminal quit work;
Feeder shutdown signal according to receiving judges whether feeder quits work, if, then control all electromagnetic valves 3 and close, quit work.
The specific embodiment two: this embodiment is that with the difference of the specific embodiment one said detector 5 adopts pressure sensors are realized.
In this embodiment, detector 5 can also adopt gas flow counter.
The difference of the specific embodiment three, this embodiment and the specific embodiment one is: said upper computer 6 adopts computing machine or Industrial Control Computer to realize.
The difference of the specific embodiment four, this embodiment and the specific embodiment one is: a plurality of gas-distributing pipes 2 of each electromagnetic valve 3 control and a plurality of nozzles 4.
The difference of the specific embodiment five, this embodiment and the specific embodiment one is: each is carried out terminal module and also comprises a plurality of buttons 9, and each signal input end of PLC7 is connected with the control signal output ends of a button 9.
In this embodiment, on the control box of installation PLC7 control button and change-over swith have been installed, when change-over swith forwards manual position to, can have used 9 pairs of electromagnetic valves of button directly to control.
Claims (5)
1. can the pneumatic block clearing device of automatically controlled coal spout; It is characterized in that: it comprises control module and pneumatic execution module; Control module comprises upper computer (6) and a plurality of execution terminal module; Each is carried out terminal module and comprises PLC (7), a plurality of detector (5) and a plurality of electromagnetic valve (3); Pneumatic execution module comprises the female pipe of air inlet (1), a plurality of gas-distributing pipe (2) and a plurality of nozzle (4); Upper computer (6) is connected with each PLC (7) that carries out terminal module through serial data communications busses, and each control signal output ends of PLC (7) is connected with the signal input end of an electromagnetic valve, and each detection signal input end of PLC (7) is connected with the detection signal mouth of a detector (5); The disconnected coal signal input part of PLC (7) is connected with the disconnected coal signal output part of run coal bin; The feeder shutdown signal input end of PLC (7) is connected with the feeder shutdown signal mouth of feeder, and the import of each gas-distributing pipe (2) all is communicated with the female pipe of air inlet (1), and electromagnetic valve (3) one by one is installed on each gas-distributing pipe (2); The exit end of each gas-distributing pipe (2) is connected with a nozzle (4), and said detector (5) is used to detect the pressure by air pressure in each gas-distributing pipe.
2. according to claim 1 can the pneumatic block clearing device of automatically controlled coal spout, it is characterized in that: said detector (5) adopts pressure sensor is realized.
3. according to claim 1 can the pneumatic block clearing device of automatically controlled coal spout, it is characterized in that: said upper computer (6) adopts computing machine or Industrial Control Computer to realize.
4. according to claim 1 can the pneumatic block clearing device of automatically controlled coal spout, it is characterized in that: each electromagnetic valve (3) is controlled a plurality of gas-distributing pipes (2) and a plurality of nozzle (4).
5. according to claim 1 can the pneumatic block clearing device of automatically controlled coal spout; It is characterized in that: each is carried out terminal module and also comprises a plurality of buttons (9), and each signal input end of PLC (7) is connected with the control signal output ends of a button (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200201223U CN202400491U (en) | 2012-01-17 | 2012-01-17 | Coal chute pneumatic unblocking device capable of realizing automatic control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200201223U CN202400491U (en) | 2012-01-17 | 2012-01-17 | Coal chute pneumatic unblocking device capable of realizing automatic control |
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| CN202400491U true CN202400491U (en) | 2012-08-29 |
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| CN2012200201223U Expired - Lifetime CN202400491U (en) | 2012-01-17 | 2012-01-17 | Coal chute pneumatic unblocking device capable of realizing automatic control |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241484A (en) * | 2013-05-23 | 2013-08-14 | 江苏天弓机械工程有限公司 | Automatic block cleaning device of air cannon |
| CN103600938A (en) * | 2013-10-18 | 2014-02-26 | 河北省电力勘测设计研究院 | Automatic coal dredging device for raw coal conveying system in thermal power plant |
| CN106742845A (en) * | 2016-12-30 | 2017-05-31 | 天津市挚信鸿达医疗器械开发有限公司 | A kind of powder feeding system |
| CN106829229A (en) * | 2017-04-18 | 2017-06-13 | 马鞍山市天工科技股份有限公司 | Integrated module type double-curve coal hopper block clearing equipment and application method |
| CN107054912A (en) * | 2017-04-18 | 2017-08-18 | 马鞍山市天工科技股份有限公司 | Integrated module type dropping coal tube blockage-clearing device |
| CN107376622A (en) * | 2017-06-19 | 2017-11-24 | 大唐环境产业集团股份有限公司 | A kind of repair method of wet method fume desulfurizing system absorption tower spray system |
| CN108062065A (en) * | 2017-12-21 | 2018-05-22 | 华润电力湖南有限公司 | The control method and device of pulverizing process |
| CN115321029A (en) * | 2022-08-23 | 2022-11-11 | 华能太仓发电有限责任公司 | Clear stifled device of power plant's raw coal bunker intelligence and equipment |
-
2012
- 2012-01-17 CN CN2012200201223U patent/CN202400491U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241484A (en) * | 2013-05-23 | 2013-08-14 | 江苏天弓机械工程有限公司 | Automatic block cleaning device of air cannon |
| CN103600938A (en) * | 2013-10-18 | 2014-02-26 | 河北省电力勘测设计研究院 | Automatic coal dredging device for raw coal conveying system in thermal power plant |
| CN106742845A (en) * | 2016-12-30 | 2017-05-31 | 天津市挚信鸿达医疗器械开发有限公司 | A kind of powder feeding system |
| CN106829229A (en) * | 2017-04-18 | 2017-06-13 | 马鞍山市天工科技股份有限公司 | Integrated module type double-curve coal hopper block clearing equipment and application method |
| CN107054912A (en) * | 2017-04-18 | 2017-08-18 | 马鞍山市天工科技股份有限公司 | Integrated module type dropping coal tube blockage-clearing device |
| CN107376622A (en) * | 2017-06-19 | 2017-11-24 | 大唐环境产业集团股份有限公司 | A kind of repair method of wet method fume desulfurizing system absorption tower spray system |
| CN107376622B (en) * | 2017-06-19 | 2020-06-26 | 大唐环境产业集团股份有限公司 | Overhauling method of absorption tower spraying system of wet flue gas desulfurization system |
| CN108062065A (en) * | 2017-12-21 | 2018-05-22 | 华润电力湖南有限公司 | The control method and device of pulverizing process |
| CN115321029A (en) * | 2022-08-23 | 2022-11-11 | 华能太仓发电有限责任公司 | Clear stifled device of power plant's raw coal bunker intelligence and equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |