CN102050312A - Motor control system of power line type field bus coal-conveying belt - Google Patents
Motor control system of power line type field bus coal-conveying belt Download PDFInfo
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- CN102050312A CN102050312A CN2009102185406A CN200910218540A CN102050312A CN 102050312 A CN102050312 A CN 102050312A CN 2009102185406 A CN2009102185406 A CN 2009102185406A CN 200910218540 A CN200910218540 A CN 200910218540A CN 102050312 A CN102050312 A CN 102050312A
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention discloses a motor control system of a power line type field bus coal-conveying belt, which comprises a power supply system, a main PLC (Programmable Logic Controller) control system, a plurality of signal detecting and processing devices which are used for detecting relevant working parameters of a plurality of coal-conveying belt motors and the operating state of coal-conveying belts in real time and controlling the coal-conveying belt motors according to the detection result and a remote control signal transmitting system for transmitting signals detected by the signal detecting and processing devices to the main PLC control system; and the remote control signal transmitting system comprises a main control device, branch control devices and cables, the main PLC control system is connected with the main control device, and the main control device is connected with the signal detecting and processing devices through the branch control devices and the cables. The invention has the advantages of low equipment investment and operation cost, convenience for installation and maintenance and stable signal transmission property; and the problems of complex wiring, long cable distance, large construction difficulty and the like in the traditional coal-conveying motor control system of a thermal power plant can be solved.
Description
Technical field
The invention belongs to electric wireline formula Field Bus Control Technology field, especially relate to a kind of electric wireline formula fieldbus coal conveyer belt motor control system.
Background technology
At present, belt conveyer (being coal conveyer belts) One's name is legion in thermal powerplant fortune coal measures system, thereby to the mode of operation of each belt conveyer, specifically be that the coal-fired feed flow of longitudinal tear state, coal conveyer belt of running velocity, coal conveyer belt to the coal conveyer belt electrical motor and the spray water state that is laid in the spray water device of coal conveyer belt both sides are when monitoring, need numerous and detection of data monitored and process loaded down with trivial details, the corresponding process of the corresponding parameter of coal conveyer belt electrical motor being controlled adjustment according to above-mentioned monitoring data is also very loaded down with trivial details.Big, the multiple practical problemss such as wiring is loaded down with trivial details, default cable distance is far away, one-time investment expense height, the construction period is long, the site operation difficulty is big, system's operating maintenance difficulty is big, system for field forceful electric power interference problem is serious of the ubiquitous cable consumption of control setup that tradition is carried out the method for optimal control to the electrical motor (being the coal conveyer belt electrical motor) of belt conveyer and matched and use.
Summary of the invention
Technical matters to be solved by this invention is at above-mentioned deficiency of the prior art, a kind of electric wireline formula fieldbus coal conveyer belt motor control system is provided, its equipment investment and operating cost are low, installation and maintenance are easy, signal transmission performance is stable, can solve problems such as the wiring that has the existence of thermal powerplant coal conveyer belt motor control system now is loaded down with trivial details, cable distance is far away, difficulty of construction is big.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of electric wireline formula fieldbus coal conveyer belt motor control system is characterized in that: comprise power supply system, main PLC control system, respectively to the coal conveyer belt electrical motor related work parameter of a plurality of belt conveyers and the running state of coal conveyer belt own detects in real time and tackle a plurality of signal detection that described coal conveyer belt electrical motor controls and processing equipment mutually and described a plurality of signal detection and processing equipment institute detection signal are sent to the distant place control signal transmission system of main PLC control system according to testing result; Described distant place control signal transmission system comprises master control set, distributed control device and cable, be connected with communication modes or hardwire mode between main PLC control system and master control set, master control set joins by cable and a plurality of distributed control device and described a plurality of distributed control device joins with described a plurality of signal detection and processing equipment respectively.
Described signal detection and processing equipment comprise the speed sensor that the running velocity to the coal conveyer belt electrical motor detects in real time, tear sensor to what the longitudinal tear state of coal conveyer belt detected in real time, the belted electronic balance that the coal-fired feed flow of coal conveyer belt is detected in real time, the water content detection unit that the spray water state of a plurality of spray water devices of being laid in the coal conveyer belt both sides is detected in real time, the MCU treater that described coal conveyer belt electrical motor is controlled and the signal conditioning circuit and the I/O communication interface of joining with the MCU treater respectively, described speed sensor, tear sensor, belted electronic balance and water content detection unit all join with signal conditioning circuit; The motor-driven control loop of described MCU treater and coal conveyer belt electrical motor joins.
Described speed sensor comprises belt speed sensor that the belt running velocity to described belt conveyer detects in real time and/or the tachogen that the rotating speed of driven cylinder in the described belt conveyer is detected in real time.
Also comprise the alarm unit, parameter set unit and the state indicating member that join with the MCU treater.
Also comprise the signal coupling circuit that joins with the MCU treater, described MCU treater joins by signal coupling circuit and I/O communication interface.
Described speed sensor, the quantity of tearing sensor, belted electronic balance and water content detection unit are one or more, and a plurality of speed sensor, tear sensor, belted electronic balance and water content detection unit and all be attempted by on the signal input part of MCU treater.
Be connected with communication modes between described main PLC control system and master control set, and the two connects by the third party device interface module.
Described master control set and third party device interface module all are arranged in the distant station; The quantity of described master control set is one or more.
Described MCU treater is installed on the circuit card in the control box and parameter set unit and state indicating member all are laid on the control panel of control box, and described state indicating member is made up of a plurality of LED light and a plurality of charactron telltale.
Described power supply system is installed in the distant station, and power supply system detects and the processing equipment power supply to each running velocity respectively by cable.
The present invention compared with prior art has the following advantages:
1, power line carrier technology is combined with field bus technique, can effectively solve practical problemss such as loaded down with trivial details, the default cable distance of the existing wiring of thermal powerplant coal conveyer belt motor control system is far away, the site operation difficulty is big.
2, its electric wireline formula fieldbus adopts main control unit and the signal transfer bus of cable, be connected successively with the program control chamber of upper computer host CPU, telecommunication module (or exchange) and the next signal detection and processing equipment, be implemented in the purpose that a distant place is monitored in real time to the promptly defeated U.S. belt electrical motor of the electrical motor of a plurality of belt conveyers.
3, speed of response is fast, and the speed of response of individual signals detection and processing equipment is below 2S.
4, communication distance is far away, and theoretical can reach 30km, is not subjected to the restriction of factory's actual distance in engineering is used.
5 is widely applicable, not only applicable to electric power, electron trade automation control area, can open up in the automation control system of multiple industry equipment such as extensively applying to manufacture, metallurgy, petrochemical industry, logistics.
6, serviceability is more reliable, program control indoor employing upper computer and Programmable Logic Controller are controlled jointly, under the situation that upper computer can't normally move, the host CPU of Programmable Logic Controller can independently be controlled The whole control system and normally move, and has realized the seamless link between master control set and the Programmable Logic Controller simultaneously.
7, adopt the electric wireline field bus technique, control signal transmits with carrier system, have only with signal frequently and just can cause interference system, thereby this interference can be predicted and be eliminated by various measures, increase substantially the antijamming capability of system thus, the unfavorable situations such as interrupted, transmission delay of signal can not occur.
9, convenient according to field wiring, simple installation, raise labour efficiency greatly and application mode flexible.
10, MCU processor adopting cmos digital integrated circuit, antijamming capability is strong, stable work in work, range rate accuracy height.
11, electrostatic plastic-blasting coating processes is adopted on the control box surface, and coating is even, and strong adhesion is ageing-resistant.
12, degree of protection height and device degree of protection are IP67.
In a word, reliability of the present invention, ageing, demand that advance satisfies power plant's overall operation, after it adopts signal detection and processing equipment to gather the coal-fired feed flow of the longitudinal tear state of the running velocity of band conveyor electrical motor, coal conveyer belt, coal conveyer belt in real time and is laid in the signals such as spray water state of spray water device of coal conveyer belt both sides, process MCU treater is handled in real time and is sent the running speed signal that institute detects and gathers to program control upper computer by bus after being coupled and shows the indication of reporting to the police accordingly at the scene simultaneously.This monitored control system can be monitored the monitoring parameter of a plurality of signal detection and processing equipment simultaneously, owing to used bus mode thereby the system can be more succinct, and signal transmission bus can be shared with power lead, thereby the cable consumption can significantly reduce because of the increase of detected number.Application of the present invention has guaranteed the safety of band conveyor operation largely, for power plant has saved investment, manpower greatly, realized the automatic demonstration of testing result on the upper computer picture of program control chamber of a plurality of signal detection and processing equipment with the simplest, convenient and economic means, the work capacity that alleviates the operations staff is had great significance and acts on, it is time saving and energy saving, simple to safeguard, system response speed is fast and flexible with defeated coal programmable interface mode, in a word, good economic benefit and social benefit have been obtained.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is a fundamental diagram of the present invention.
Fig. 2 is the schematic block circuit diagram of a plurality of signal detection of the present invention and processing equipment.
Description of reference numerals:
The 1-running velocity detects and locates 1-1-belt speed sensor; The 1-2-tachogen; The reason device;
1-3-tears sensor; The 1-4-belted electronic balance; 1-5-water content detection unit;
The 1-6-MCU treater; The 1-7-I/O communication interface; The 1-8-alarm unit;
The 1-9-parameter set unit; 1-10-state indicating member; The coupling of 1-11-signal
The road;
The 1-12-signal conditioning circuit; 2-master PLC control system; The 3-master control set;
The 4-cable; 5-third party device interface module; The 6-distant station;
The 7-terminal row; The 8-power supply system; The 9-power module;
The 10-distributed control device.
The specific embodiment
As shown in Figure 1, the present invention includes power supply system 8, main PLC control system 2, respectively to the coal conveyer belt electrical motor related work parameter of a plurality of belt conveyers and the running state of coal conveyer belt own detects in real time and tackle a plurality of signal detection that described coal conveyer belt electrical motor controls and processing equipment 1 mutually and described a plurality of signal detection and 1 detection signal of processing equipment are sent to the distant place control signal transmission system of main PLC control system 2 according to testing result.Described distant place control signal transmission system comprises master control set 3, distributed control device 10 and cable 4,3 of main PLC control system 2 and master control sets are connected with communication modes or hardwire mode, and master control set 3 joins by cable 4 and a plurality of distributed control devices 10 and described a plurality of distributed control device 10 joins with described a plurality of signal detection and processing equipment 1 respectively.
In conjunction with Fig. 2, described signal detection and processing equipment 1 comprise the speed sensor that the running velocity to the coal conveyer belt electrical motor detects in real time, tear sensor 1-3 to what the longitudinal tear state of coal conveyer belt detected in real time, the belted electronic balance 1-4 that the coal-fired feed flow of coal conveyer belt is detected in real time, the water content detection unit 1-5 that the spray water state of a plurality of spray water devices of being laid in the coal conveyer belt both sides is detected in real time, the MCU treater 1-6 that described coal conveyer belt electrical motor is controlled and the signal conditioning circuit 1-12 and the I/O communication interface 1-7 that join with MCU treater 1-6 respectively.Described speed sensor, tear sensor 1-3, belted electronic balance 1-4 and water content detection unit 1-5 all joins with signal conditioning circuit 1-12.The motor-driven control loop of described MCU treater 1-6 and coal conveyer belt electrical motor joins.
In the present embodiment, described speed sensor comprises belt speed sensor 1-1 that the belt running velocity to described belt conveyer detects in real time and/or the tachogen 1-2 that the rotating speed of driven cylinder in the described belt conveyer is detected in real time.Simultaneously, described signal detection and processing equipment 1 also comprise alarm unit 1-8, parameter set unit 1-9 and the state indicating member 1-10 that joins with MCU treater 1-3, and the signal coupling circuit 1-11 that joins with MCU treater 1-3, described MCU treater 1-3 joins by signal coupling circuit 1-11 and I/O communication interface 1-7.
Described speed sensor, the quantity of tearing sensor 1-3, belted electronic balance 1-4 and water content detection unit 1-5 are one or more, and a plurality of speed sensor, tear sensor 1-3, belted electronic balance 1-4 and water content detection unit 1-5 all is attempted by on the signal input part of MCU treater 1-3.
Described main PLC control system 2 is connected with communication modes with 3 of master control sets, and the two connects by third party device interface module 5.Described master control set 3 all is arranged in the distant station 6 with third party device interface module 5.The quantity of described master control set 3 is one or more.Described MCU treater 1-3 is installed on the circuit card in the control box and parameter set unit 1-9 and state indicating member 1-10 all are laid on the control panel of control box, and described state indicates single 1-10 to be made up of a plurality of LED light and a plurality of charactron telltale.Described power supply system 8 is installed in the distant station 6, and power supply system 8 detects and processing equipment 1 power supply to each running velocity respectively by cable 4.Described third party device interface module 5 is powered by power module 9.4 on described master control set 3 and cable are connected by terminal row 7.
To sum up, a plurality of signal detection and processing equipment 1 are sent to main PLC control system 2 with the coal conveyer belt electrical motor related work parameter and the operating state signal of coal conveyer belt own of its each belt conveyer of gathering in real time by master control set 3, distributed control device 10 and cable 4 respectively.Simultaneously, be provided with the wave arrestment device in master control set 3 and the distributed control device 10, the effect of this wave arrestment device is high-frequency signal in the control system and ambient systems isolated, in order to avoid system impacts and disturbs to external world.Concrete working process of the present invention is: a plurality of signal detection and processing equipment 1 (comprise the coal conveyer belt electrical motor related work parameter and the operating state signal of coal conveyer belt own of each belt conveyer that it is gathered in real time: the coal conveyer belt motor operating speed, coal conveyer belt is torn state, the belt spray water, parameters such as the coal-fired feed flow of coal conveyer belt) be uploaded to master control set 3 by distributed control device 10 and cable 4, then be uploaded to the host CPU of program control indoor main PLC control system 2 again by master control set 3 synchronously, thereby be implemented on the upper computer picture of program control chamber real-time monitoring each belt conveyer running velocity.In monitoring in real time simultaneously, main PLC control system 2 is controlled a plurality of coal conveyer belt electrical motors respectively by MCU treater 1-3 is corresponding according to above-mentioned testing result.
The above; it only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, everyly any simple modification that above embodiment did, change and equivalent structure changed, all still belong in the protection domain of technical solution of the present invention according to the technology of the present invention essence.
Claims (10)
1. electric wireline formula fieldbus coal conveyer belt motor control system is characterized in that: comprise power supply system (8), main PLC control system (2), respectively to the coal conveyer belt electrical motor related work parameter of a plurality of belt conveyers and the running state of coal conveyer belt own detects in real time and tackle a plurality of signal detection that described coal conveyer belt electrical motor controls and processing equipment (1) mutually and described a plurality of signal detection and processing equipment (1) institute detection signal are sent to the distant place control signal transmission system of main PLC control system (2) according to testing result; Described distant place control signal transmission system comprises master control set (3), distributed control device (10) and cable (4), be connected with communication modes or hardwire mode between main PLC control system (2) and master control set (3), master control set (3) joins by cable (4) and a plurality of distributed control devices (10) and described a plurality of distributed control device (10) joins with described a plurality of signal detection and processing equipment (1) respectively.
2. according to the described electric wireline formula of claim 1 fieldbus coal conveyer belt motor control system, it is characterized in that: described signal detection and processing equipment (1) comprise the speed sensor that the running velocity to the coal conveyer belt electrical motor detects in real time, tear sensor (1-3) to what the longitudinal tear state of coal conveyer belt detected in real time, the belted electronic balance (1-4) that the coal-fired feed flow of coal conveyer belt is detected in real time, the water content detection unit (1-5) that the spray water state of a plurality of spray water devices of being laid in the coal conveyer belt both sides is detected in real time, the MCU treater (1-6) that described coal conveyer belt electrical motor is controlled and communicate by letter with I/O with the signal conditioning circuit (1-12) that MCU treater (1-6) joins respectively and meet (1-7), described speed sensor, tear sensor (1-3), belted electronic balance (1-4) and water content detection unit (1-5) all join with signal conditioning circuit (1-12); Described MCU treater (1-6) joins with the motor-driven control loop of coal conveyer belt electrical motor.
3. according to the described electric wireline formula of claim 2 fieldbus coal conveyer belt motor control system, it is characterized in that: described speed sensor comprises belt speed sensor (1-1) that the belt running velocity to described belt conveyer detects in real time and/or the tachogen (1-2) that the rotating speed of driven cylinder in the described belt conveyer is detected in real time.
4. according to claim 2 or 3 described electric wireline formula fieldbus coal conveyer belt motor control systems, it is characterized in that: comprise that also alarm unit (1-8), the parameter of joining with MCU treater (1-3) are provided with list (1-9) and state indication single (1-10).
5. according to claim 2 or 3 described electric wireline formula fieldbus coal conveyer belt motor control systems, it is characterized in that: also comprise the signal coupling circuit (1-11) that joins with MCU treater (1-3), described MCU treater (1-3) joins by signal coupling circuit (1-11) and I/O communication interface (1-7).
6. according to claim 2 or 3 described electric wireline formula fieldbus coal conveyer belt motor control systems, it is characterized in that: described speed sensor, the quantity of tearing sensor (1-3), belted electronic balance (1-4) and water content detection unit (1-5) are one or more, and a plurality of speed sensor, tear sensor (1-3), belted electronic balance (1-4) and water content detection single (1-5) and all be attempted by on the signal input part of MCU treater (1-3).
7. according to claim 1,2 or 3 described electric wireline formula fieldbus coal conveyer belt motor control systems, it is characterized in that: be connected with communication modes between described main PLC control system (2) and master control set (3), and the two connects by third party device interface module (5).
8. according to claim 1,2 or 3 described electric wireline formula fieldbus coal conveyer belt motor control systems, it is characterized in that: described master control set (3) all is arranged in the distant station (6) with third party device interface module (5); The quantity of described master control set (3) is one or more.
9. according to claim 2 or 3 described electric wireline formula fieldbus coal conveyer belt motor control systems, it is characterized in that: described MCU treater (1-3) is installed on the circuit card in the control box and parameter set unit (1-9) and state indicating member (1-10) all are laid on the control panel of control box, and described state indicating member (1-10) is made up of a plurality of LED light and a plurality of charactron telltale.
10. according to claim 1,2 or 3 described electric wireline formula fieldbus coal conveyer belt motor control systems, it is characterized in that: described power supply system (8) is installed in the distant station (6), and power supply system (8) detects and processing equipment (1) power supply to each running velocity respectively by cable (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102185406A CN102050312A (en) | 2009-10-27 | 2009-10-27 | Motor control system of power line type field bus coal-conveying belt |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102185406A CN102050312A (en) | 2009-10-27 | 2009-10-27 | Motor control system of power line type field bus coal-conveying belt |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104229422A (en) * | 2014-09-03 | 2014-12-24 | 鞍钢集团矿业公司 | Belt conveyor intelligent current detection spraying system and control method |
| CN105173609A (en) * | 2015-07-21 | 2015-12-23 | 江苏通达机械设备制造有限公司 | Large-dip-angle belt conveyor |
| CN105607572A (en) * | 2016-01-26 | 2016-05-25 | 安徽理工大学 | Explosion suppression type multistage belt transmission multi-touch-screen multi-CAN-board parallel remote centralized control apparatus |
| CN105629934A (en) * | 2016-01-26 | 2016-06-01 | 安徽理工大学 | Coal washery multi-stage band conveying multi-touch screen multi-CAN board parallel connection long-distance centralized control device |
| CN105763408A (en) * | 2015-01-07 | 2016-07-13 | 五冶集团上海有限公司 | Improved long-distance belt conveying system based on PLC network communication |
| CN107720163A (en) * | 2017-11-09 | 2018-02-23 | 合肥三益江海智能科技有限公司 | A kind of bus type quickly connects belt conveyor system |
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- 2009-10-27 CN CN2009102185406A patent/CN102050312A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104229422A (en) * | 2014-09-03 | 2014-12-24 | 鞍钢集团矿业公司 | Belt conveyor intelligent current detection spraying system and control method |
| CN104229422B (en) * | 2014-09-03 | 2016-03-09 | 鞍钢集团矿业公司 | Belt transporter Intelligent current detects drenching system and control method |
| CN105763408A (en) * | 2015-01-07 | 2016-07-13 | 五冶集团上海有限公司 | Improved long-distance belt conveying system based on PLC network communication |
| CN105763408B (en) * | 2015-01-07 | 2019-01-15 | 五冶集团上海有限公司 | A kind of improved long range belt conveyor system based on PLC network communication |
| CN105173609A (en) * | 2015-07-21 | 2015-12-23 | 江苏通达机械设备制造有限公司 | Large-dip-angle belt conveyor |
| CN105607572A (en) * | 2016-01-26 | 2016-05-25 | 安徽理工大学 | Explosion suppression type multistage belt transmission multi-touch-screen multi-CAN-board parallel remote centralized control apparatus |
| CN105629934A (en) * | 2016-01-26 | 2016-06-01 | 安徽理工大学 | Coal washery multi-stage band conveying multi-touch screen multi-CAN board parallel connection long-distance centralized control device |
| CN105629934B (en) * | 2016-01-26 | 2018-04-03 | 安徽理工大学 | The multistage band transmission more CAN plates parallel connection long distance centralized control equipments of multi-touch screen in coal washery |
| CN105607572B (en) * | 2016-01-26 | 2018-05-04 | 安徽理工大学 | The multistage band transmission more CAN plates parallel connection long distance centralized control equipments of multi-touch screen of flame-proof type |
| CN107720163A (en) * | 2017-11-09 | 2018-02-23 | 合肥三益江海智能科技有限公司 | A kind of bus type quickly connects belt conveyor system |
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Application publication date: 20110511 |