CN101625567A - Bus control method for pulse bag type dust cleaner and device - Google Patents
Bus control method for pulse bag type dust cleaner and device Download PDFInfo
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- CN101625567A CN101625567A CN200810302570A CN200810302570A CN101625567A CN 101625567 A CN101625567 A CN 101625567A CN 200810302570 A CN200810302570 A CN 200810302570A CN 200810302570 A CN200810302570 A CN 200810302570A CN 101625567 A CN101625567 A CN 101625567A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The invention discloses a bus control method for a pulse bag type dust cleaner and a device. The bus control method for a pulse bag type dust cleaner is characterized in that an intelligent control system is used for controlling a dust cleaner through a bus control device arranged between the intelligent control system and the dust cleaner; an external power supply provides working power for the bus control device; a bus cable of the bus control device is connected with the intelligent control system, and the bus control device receives pressure difference measurement signals of the dust cleaner; besides, the bus control device also controls a group of pulse solenoid valves arranged on the dust cleaner. The device of the invention can realize the remote monitoring and control of the dust cleaner, and has favorable extension performance. With the invention, failures of the dust cleaner during operation can be found in time, the operation reliability of the dust cleaner is improved, and the working load of maintenance personnel is also reduced.
Description
Technical field
The present invention relates to a kind of bus control method and device of pulse bag type dust collector, belong to the electric monitoring field.
Background technology
Pulse bag type dust collector applies to electrolytic aluminium factory, carbon element factory and alumina producer in a large number, and these pulse bag type dust collectors generally are installed in the difficult warehouse Cang Ding that arrives of maintainer, the pipeline top and the outer of factory building of high steel frame construction chosen on the platform.In the prior art, the simple control method of the general employing of the control of paired pulses sack cleaner, promptly directly adopt pulse control instrument that the impulse electromagnetic valve on the fly-ash separator is carried out impulse soot blowing control, simultaneously, the fly-ash separator internal differential pressure signal of measurement fly-ash separator duty and efficient also is directly to show on the spot or will not monitor at all.Therefore, be in operation and carry out status surveillance and remote centralized is controlled to pulse bag type dust collector on certain technological process line, bring great inconvenience, be unfavorable for that optimum production run and equipment monitor safeguard to production.The open and close of impulse electromagnetic valve are sent impulse level control by pulse control instrument in the prior art fly-ash separator, impulse electromagnetic valve is opened the level width and is closed the level width and need set in advance, can only provide the level width by setting value after setting completed, thereby make that the action of impulse electromagnetic valve is changeless, can not change according to the variation of the pressure difference signal of direct reaction fly-ash separator internal pressure, in addition, pressure difference signal can only be read on the differential pressure indicator of installing on the fly-ash separator, inconvenient remote monitoring.Whether the impulse electromagnetic valve that can not judge fly-ash separator in time stops up, and can not judge in time whether the inner cloth bag of fly-ash separator is damaged, increased operation maintenance personnel's workload, and has been unfavorable for the stable operation and the fault detect of plant produced technological process.
Summary of the invention
The object of the present invention is to provide a kind of reliable, the bus control method of the pulse bag type dust collector that wiring is succinct and device, realize the remote monitoring of fly-ash separator, so that in time find the fault of fly-ash separator emerged in operation, improve the operational reliability of fly-ash separator, and reduce the work of maintenance personnel amount.
The present invention is achieved in that intelligence control system is controlled fly-ash separator by the bus control device that is located between intelligence control system and the fly-ash separator in the bus control method of pulse bag type dust collector of the present invention; External power source provides working power for bus control device, and the bus cable of bus control device is connected with intelligence control system, and bus control device receives the differential pressure measurement signal on the fly-ash separator, the set of pulses solenoid valve on the bus control device control fly-ash separator.
In the bus control method of above-mentioned pulse bag type dust collector, described intelligence control system is programmable logic controller (PLC) (PLC) or Distributed Control System (DCS) (DCS), and intelligence control system is provided with man-machine interaction interface.
In the bus control method of aforesaid pulse bag type dust collector, comprise bus module in the described bus control device, bus module is provided with one group of analog input interface and set of number output interface and a communication interface; The analog input interface is connected with differential pressure measurement device on the fly-ash separator through pressure difference transmitter, and pressure difference transmitter is given the interface of the analog input on the bus module with the standard analog signal that the pressure difference signal that collects converts 4～20mA to, for control provides foundation; Each digital output interface is connected with external power source with the coil polyphone back of output relay respectively, and by the contact of relay fly-ash separator is controlled; Communication interface is connected with intelligence control system with bus cable through bus coupler, by intelligence control system issue steering order.
In the bus control method of aforesaid pulse bag type dust collector, the frequency of the output level width of digital output interface and output level is regulated by the man-machine interaction interface on the intelligence control system or is regulated automatically according to the signal of differential pressure measurement device by intelligence control system on the described bus module.
In the bus control method of aforesaid pulse bag type dust collector, the encoding law of described bus module is pressed MOD BUS agreement, PROFIBUS agreement, DEVICENET agreement, CONTROLNET agreement or ETHERNET protocol code.
In the bus control method of aforesaid pulse bag type dust collector, described bus coupler and bus cable adopt the type of programmable logic controller (PLC) (PLC) or Distributed Control System (DCS) (DCS) to select for use according to intelligence control system.
In the bus control method of aforesaid pulse bag type dust collector, the quantity of the defeated interface of described bus module numeral is determined according to the quantity of impulse electromagnetic valve on the fly-ash separator; The quantity of bus module analog input interface is determined according to the quantity of differential pressure measurement point on the fly-ash separator.
The bus control device of the pulse bag type dust collector that makes up according to the bus control method of aforesaid pulse bag type dust collector is made of bus module, pressure difference transmitter, output relay, bus coupler and bus cable; Bus module is provided with the analog input interface, digital output interface and communication interface; The analog input interface is connected with the output terminal of pressure difference transmitter, and the input end of pressure difference transmitter is connected with differential pressure measurement device on the fly-ash separator, and the power end of pressure difference transmitter is connected with external power source; Digital output interface is connected with coil one end of output relay, and the other end of coil is connected with external power source; Contact one end of output relay is connected with the impulse electromagnetic valve on the fly-ash separator, and the other end of contact is connected with external power source; Communication interface on the bus module is connected with bus cable through bus coupler; The other end of bus cable connects intelligence control system, and intelligence control system is programmable logic controller (PLC) (PLC) or Distributed Control System (DCS) (DCS).
Compared with prior art, the bus control method of pulse bag type dust collector provided by the invention and device have changed the repetitive operation that the impulse electromagnetic valve in the fly-ash separator in the prior art can only fix by open and close time of pre-setting, cannot according to circumstances adjust at any time; In the prior art,,, be difficult to the ruuning situation of fly-ash separator is monitored so differential pressure indicator performs practically no function because differential pressure indicator be installed on the fly-ash separator on the spot, and fly-ash separator generally all is installed in the approaching place of the personnel of being not easy to.The present invention can be with the long-range control center that is delivered to of pressure difference signal, in case the pressure reduction of fly-ash separator changes, operating personnel can in time find, the switch motion of regulating impulse solenoid valve is at any time in time adjusted.Or the impulse electromagnetic valve on the fly-ash separator is controlled automatically by the programmable logic controller (PLC) (PLC) or the Distributed Control System (DCS) (DCS) that are connected with bus control device.If in the operational process, the cloth bag breakage that occurs in impulse electromagnetic valve obstruction or the fly-ash separator also can be found timely, has guaranteed the fly-ash separator reliability of operation.Because bus control device wiring of the present invention is succinct, and is arranged on the very near place of fly-ash separator, so wiring is short, failure rate is low, has reduced the work of maintenance personnel amount.
Description of drawings
Accompanying drawing 1 is an electrical schematic diagram of the present invention;
Accompanying drawing 2 is electrical schematic diagrams of prior art.
Embodiment
Embodiments of the invention: the bus control method of pulse bag type dust collector of the present invention and device are the improvement to control method of the prior art and control device.The control principle of fly-ash separator as shown in Figure 2 in the prior art.As can be seen from Figure 2 prior art has been to use a pulse control instrument that the impulse electromagnetic valve on the fly-ash separator controlled, differential pressure measurement device on the fly-ash separator connects a differential pressure indicator, differential pressure indicator and pulse control instrument are without any getting in touch, can not control the impulse electromagnetic valve on the fly-ash separator automatically according to the variation of pressure reduction, automaticity is low, also can not carry out real-time control to the impulse electromagnetic valve in the fly-ash separator easily at any time.
The bus control method of pulse bag type dust collector of the present invention as shown in Figure 1, the part among Fig. 1 in the thick dashed line is a core of the present invention.It is to adopt programmable logic controller (PLC) PLC by bus control device fly-ash separator to be controlled, and the programmed logic controller PLC is provided with man-machine interaction interface, can control fly-ash separator easily; External power source provides working power for bus control device, the bus cable of bus control device is connected with programmable logic controller (PLC) PLC, bus control device receives the differential pressure measurement signal on the fly-ash separator, the set of pulses solenoid valve on the bus control device control fly-ash separator.Comprise bus module in the bus control device, bus module is provided with one group of analog input interface and set of number output interface and a communication interface; The analog input interface is connected with differential pressure measurement device on the fly-ash separator through pressure difference transmitter, and pressure difference transmitter is given the interface of the analog input on the bus module with the standard analog signal that the pressure difference signal that collects converts 4～20mA to, for control provides foundation; Each digital output interface is connected with external power source with the coil polyphone back of output relay respectively, and by the contact of relay fly-ash separator is controlled; Communication interface is connected with programmable logic controller (PLC) PLC with bus cable through bus coupler, by programmable logic controller (PLC) PLC issue steering order.Steering order digital output interface on bus module changes the frequency of output level width and output level, or is regulated automatically according to the signal of differential pressure measurement device by programmable logic controller (PLC) PLC.The encoding law of described bus module is pressed MOD BUS agreement, PROFIBUS agreement, DEVICENET agreement, CONTROLNET agreement or ETHERNET protocol code.Bus coupler and bus cable are selected for use according to the type that programmable logic controller (PLC) PLC adopts.The quantity of the defeated interface of bus module numeral is determined according to the quantity of impulse electromagnetic valve on the fly-ash separator; The quantity of bus module analog input interface is determined according to the quantity of differential pressure measurement point on the fly-ash separator.
The bus control device of pulse bag type dust collector is made of bus module, pressure difference transmitter, output relay, bus coupler and bus cable; Bus module is provided with the analog input interface, digital output interface and communication interface; The analog input interface is connected with the output terminal of pressure difference transmitter, and the input end of pressure difference transmitter is connected with differential pressure measurement device on the fly-ash separator, and the power end of pressure difference transmitter is connected with external power source; Digital output interface is connected with coil one end of output relay, and the other end of coil is connected with external power source; Contact one end of output relay is connected with the impulse electromagnetic valve on the fly-ash separator, and the other end of contact is connected with external power source; Communication interface on the bus module is connected with bus cable through bus coupler; The other end of bus cable connects programmable logic controller (PLC) PLC.
Bus module of the present invention can directly adopt the finished product of selling on the market to install, and for example: the model that can adopt Tianjin TURCK company to produce is: the series of products of BL20 type, and these series of products are applicable to above-mentioned protocol type; The model that also can adopt A B company to produce is: the distributed module series of products of FLEX Tiao/O.
Claims (8)
1. the bus control method of a pulse bag type dust collector, it is characterized in that: this method is that intelligence control system is controlled fly-ash separator by the bus control device that is located between intelligence control system and the fly-ash separator; External power source provides working power for bus control device, and the bus cable of bus control device is connected with intelligence control system, and bus control device receives the differential pressure measurement signal on the fly-ash separator, the set of pulses solenoid valve on the bus control device control fly-ash separator.
2. the bus control method of pulse bag type dust collector according to claim 1, it is characterized in that: described intelligence control system is programmable logic controller (PLC) (PLC) or Distributed Control System (DCS) (DCS), and intelligence control system is provided with man-machine interaction interface.
3. the bus control method of pulse bag type dust collector according to claim 1, it is characterized in that: comprise bus module in the described bus control device, bus module is provided with one group of analog input interface and set of number output interface and a communication interface; The analog input interface is connected with differential pressure measurement device on the fly-ash separator through pressure difference transmitter, and pressure difference transmitter is given the interface of the analog input on the bus module with the standard analog signal that the pressure difference signal that collects converts 4～20mA to, for control provides foundation; Each digital output interface is connected with external power source with the coil polyphone back of output relay respectively, and by the contact of relay fly-ash separator is controlled; Communication interface is connected with intelligence control system with bus cable through bus coupler, by intelligence control system issue steering order.
4. the bus control method of pulse bag type dust collector according to claim 3 is characterized in that: the frequency of the output level width of digital output interface and output level is regulated by the man-machine interaction interface on the intelligence control system or is regulated automatically according to the signal of differential pressure measurement device by intelligence control system on the described bus module.
5. the bus control method of pulse bag type dust collector according to claim 3, it is characterized in that: the encoding law of described bus module is pressed MOD BUS agreement, PROFIBUS agreement, DEVICENET agreement, CONTROLNET agreement or ETHERNET protocol code.
6. the bus control method of pulse bag type dust collector according to claim 3, it is characterized in that: described bus coupler and bus cable adopt the type of programmable logic controller (PLC) (PLC) or Distributed Control System (DCS) (DCS) to select for use according to intelligence control system.
7. the bus control method of pulse bag type dust collector according to claim 3 is characterized in that: the quantity of the defeated interface of described bus module numeral is determined according to the quantity of impulse electromagnetic valve on the fly-ash separator; The quantity of bus module analog input interface is determined according to the quantity of differential pressure measurement point on the fly-ash separator.
8. the bus control device of the pulse bag type dust collector that makes up according to the bus control method of the described pulse bag type dust collector of the arbitrary right of claim 1 to 7, it is characterized in that: bus control device is made of bus module, pressure difference transmitter, output relay, bus coupler and bus cable; Bus module is provided with the analog input interface, digital output interface and communication interface; The analog input interface is connected with the output terminal of pressure difference transmitter, and the input end of pressure difference transmitter is connected with differential pressure measurement device on the fly-ash separator, and the power end of pressure difference transmitter is connected with external power source; Digital output interface is connected with coil one end of output relay, and the other end of coil is connected with external power source; Contact one end of output relay is connected with the impulse electromagnetic valve on the fly-ash separator, and the other end of contact is connected with external power source; Communication interface on the bus module is connected with bus cable through bus coupler; The other end of bus cable connects intelligence control system, and intelligence control system is programmable logic controller (PLC) (PLC) or Distributed Control System (DCS) (DCS).
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| CN200810302570A CN101625567A (en) | 2008-07-07 | 2008-07-07 | Bus control method for pulse bag type dust cleaner and device |
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| CN200810302570A CN101625567A (en) | 2008-07-07 | 2008-07-07 | Bus control method for pulse bag type dust cleaner and device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029095A (en) * | 2010-11-10 | 2011-04-27 | 无锡经纬纺织科技试验有限公司 | Automatic control system of honeycomb dedusting machine set |
| CN102430298A (en) * | 2011-09-16 | 2012-05-02 | 中冶南方工程技术有限公司 | Pulsed blowing ash-removal control system of large-scale bag-type deduster, and control method therefor |
| CN102451591A (en) * | 2010-10-18 | 2012-05-16 | 贵阳铝镁设计研究院有限公司 | Dust-cleaning method and device of dedusting system |
| CN102824794A (en) * | 2012-09-13 | 2012-12-19 | 山东开泰工业科技有限公司 | Intelligent controller applied to pulse dust collector |
| CN103239955A (en) * | 2013-05-14 | 2013-08-14 | 山东开泰工业科技有限公司 | Integrated controller for optimizing pulse dust removal |
| CN101956378B (en) * | 2009-07-14 | 2014-06-04 | 上海玻璃钢研究院有限公司 | Remote control device for removing snow and dust by using compressed air and control method thereof |
| CN104436901A (en) * | 2014-11-11 | 2015-03-25 | 武汉钢铁(集团)公司 | Method for finding damage position of dust collecting bag on pulse dust collector in online manner during back blowing |
| CN107952297A (en) * | 2017-11-27 | 2018-04-24 | 河南潜合自动化科技有限公司 | A kind of Environmental-protecting dust-removing control method |
-
2008
- 2008-07-07 CN CN200810302570A patent/CN101625567A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956378B (en) * | 2009-07-14 | 2014-06-04 | 上海玻璃钢研究院有限公司 | Remote control device for removing snow and dust by using compressed air and control method thereof |
| CN102451591A (en) * | 2010-10-18 | 2012-05-16 | 贵阳铝镁设计研究院有限公司 | Dust-cleaning method and device of dedusting system |
| CN102029095A (en) * | 2010-11-10 | 2011-04-27 | 无锡经纬纺织科技试验有限公司 | Automatic control system of honeycomb dedusting machine set |
| CN102029095B (en) * | 2010-11-10 | 2015-06-10 | 无锡经纬纺织科技试验有限公司 | Automatic control system of honeycomb dedusting machine set |
| CN102430298A (en) * | 2011-09-16 | 2012-05-02 | 中冶南方工程技术有限公司 | Pulsed blowing ash-removal control system of large-scale bag-type deduster, and control method therefor |
| CN102824794A (en) * | 2012-09-13 | 2012-12-19 | 山东开泰工业科技有限公司 | Intelligent controller applied to pulse dust collector |
| CN102824794B (en) * | 2012-09-13 | 2014-06-11 | 山东开泰工业科技有限公司 | Intelligent controller applied to pulse dust collector |
| CN103239955B (en) * | 2013-05-14 | 2014-11-05 | 山东开泰工业科技有限公司 | Integrated controller for optimizing pulse dust removal |
| CN103239955A (en) * | 2013-05-14 | 2013-08-14 | 山东开泰工业科技有限公司 | Integrated controller for optimizing pulse dust removal |
| CN104436901A (en) * | 2014-11-11 | 2015-03-25 | 武汉钢铁(集团)公司 | Method for finding damage position of dust collecting bag on pulse dust collector in online manner during back blowing |
| CN104436901B (en) * | 2014-11-11 | 2016-03-02 | 武汉钢铁(集团)公司 | The method of dust-removal cloth-bag damage location on pulse dust collector is searched online during blowback |
| CN107952297A (en) * | 2017-11-27 | 2018-04-24 | 河南潜合自动化科技有限公司 | A kind of Environmental-protecting dust-removing control method |
| CN107952297B (en) * | 2017-11-27 | 2020-08-18 | 河南潜合自动化科技有限公司 | Environment-friendly dust removal control method |
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