CN104561417B - Automatic control system for bell-less material distribution experiment of blast furnace - Google Patents
Automatic control system for bell-less material distribution experiment of blast furnace Download PDFInfo
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- CN104561417B CN104561417B CN201310504411.XA CN201310504411A CN104561417B CN 104561417 B CN104561417 B CN 104561417B CN 201310504411 A CN201310504411 A CN 201310504411A CN 104561417 B CN104561417 B CN 104561417B
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- 239000000463 material Substances 0.000 title claims abstract description 24
- 238000002474 experimental method Methods 0.000 title claims abstract description 22
- 239000004744 fabric Substances 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000011159 matrix material Substances 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 abstract description 5
- 238000013178 mathematical model Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 239000000571 coke Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003079 width control Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/18—Bell-and-hopper arrangements
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/24—Test rods or other checking devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses an automatic control system for a bell-less material distribution experiment of a blast furnace, which mainly comprises a PLC, a touch screen, a computer, a field execution mechanism and a concentrator, wherein the PLC, the touch screen and the computer form an Ethernet for data exchange through the concentrator, and the PLC and the field execution mechanism form a CC-Link bus network through a CC-Link master station module and a remote module. The system has high automation degree, can control the operation of experimental equipment according to experimental needs, can input any cloth parameters according to experimental needs to carry out a large number of sequence experiments, and can immediately input the observed experimental phenomenon in the experimental process through the touch screen. The method can analyze the change of each important parameter in the material distribution process, know the whole process of the material distribution, provide important data for establishing a mathematical model based on the measurement result after the analysis experiment is finished, and is a control system suitable for researching the bell-less material distribution rule of the blast furnace in a metallurgical laboratory.
Description
Technical field
A kind of blast furnace clock-free cloth experiment automatic control system, belongs to metallurgical test research equipment technical field。
Background technology is in order to study blast furnace material distribution rule, and some blast-furnace man authors reduce by a certain percentage according to actual blast furnace and are fabricated to laboratory mock-up and study the rule of blast furnace material distribution, but all without robot control system(RCS), or automaticity is low。Can not by equipment control, measure instrument, set cloth parameter, measured data of experiment combine realize experimenter experiment be intended to, experimental flexibility is poor, it is impossible to doing a large amount of sequential experimentation according to different experiment demands, utilization rate of equipment and installations is low；The change of Important Parameters in cloth process can not be obtained, thus lack the means of a kind of analysis to experimental measurements。
Summary of the invention
It is an object of the invention to provide a kind of blast furnace clock-free cloth automatic control system, by cable and communication network by PLC, touch screen, computer and testing equipment and instrument and meter couple together, Key Experiment equipment and instrument are set and control, and energy online acquisition, the important parameter of display and the equipment of preservation and instrument feedback, important parameter situation of change in cloth process can be analyzed, and by the important experimental phenomena in button instant typing cloth process in cloth process, such as coke collapse, the complete material of actual cloth, the deficiency existed in solution background technology。
For achieving the above object, the technical solution used in the present invention is:
A kind of blast furnace clock-free cloth experiment automatic control system, this system is mainly by PLC, on-the-spot actuator, touch screen, computer, and hub composition, described PLC, touch screen, computer constitute Ethernet by hub and carry out data exchange, and described PLC forms CC-Link bus network with on-the-spot actuator by CC-Link master station module and far module。
According to PLC, touch screen, the relation of computer and these on-the-spot actuators can be divided into three parts: (1) control to actuator, including to material flow control valve, Air Flow Rate Instrument, and electric rotating machine and tilting motor；(2) collection to on-the-spot actuator feedback signal, including material valve aperture, air quantity, blast；(3) signals collecting to PLC control unit, including the anglec of rotation and turning angle。
Described to material flow control valve, Air Flow Rate Instrument, and the control of electric rotating machine and tilting motor。Expect flow control valve, the control signal of volume control damper is 4-20mA analogue signal, can automatically open up corresponding position by the given different each valve of current value, and PLC controls the output electric current of 4-20mA by CC-Link remote analog amount output module。Operator are at touch screen input angle angle value and flow value, and PLC program can calculate the current value of correspondence automatically to control the aperture of each valve；Servomotor is adopted to realize the control of the anglec of rotation, turning angle, PLC controls motor rotary speed, position by special servo position module, servo realizes position control by Pulse Width Control, operator realize required burden distribution matrix in touch screen input, and PLC program can transfer umber of pulse automatically to。
The described collection to on-the-spot actuator feedback signal, including material valve aperture, air quantity, blast。Wherein expect that flow control valve, air quantity, blast feedback signal are 4-20mA analogue signal。Gathering signal with CC-Link remote analog amount input module, the signal collected is processed by PLC internal data and is converted into angle value, flow value and force value, and display on the touchscreen and is transferred to computer。
The described signals collecting to PLC control unit includes the anglec of rotation and turning angle, and the encoder being read servomotor self band by PLC is completed。Encoder for servo motor can feed back the umber of pulse of current rotation to PLC, by the internal calculation of matrix Yu pulse, it is possible to calculating the chute anglec of rotation current in cloth process and turning angle, this angle shows in real time on the touchscreen and is transferred to computer。Described touch screen includes 3 display pictures, " real-time pictures ", " distributing mode " and " cloth setting ", can arbitrarily switch between three pictures。Operator carry out the burden distribution matrix that experiment is required under " distributing mode " and " cloth setting " picture, rotary speed, air quantity, material valve apertures etc. are relevant arrange after, return to " real-time pictures " equipment to be operated and phenomenon such as the time needed for actual cloth, coke collapse time started in typing experimentation。
The anglec of rotation and the turning angle of described display in real time gather a numerical value every 0.1s, and display on the touchscreen, and is transferred on computer, and is stored for the analysis after experiment with certain form。
Compared with the existing technology, experiment key equipment and instrument are set and control by the present invention, and can analyze important parameter situation of change in cloth process, and the important phenomenon of record cloth process。To accurately testing, the precision improving blast furnace material distribution provides valuable information。It is in particular in:
(1) automaticity is high, cloth is flexible, can need to select various distributing mode cloth such as monocycle on the touchscreen according to experiment, multi-ring, fixed point, spiral, can arbitrarily set burden distribution matrix, air-supply, chute direction of rotation, the important parameters such as rotary speed carry out the experiment of a sequence, obtain cloth regular；
(2) can online acquisition, display and preserve chute rotate and fascinate, air quantity, the numerical value of blast, it is possible to analyze the micro-process of whole cloth；
(3) can in the process that burden distribution matrix performs, experimental phenomena important in the button record cloth process that manual point touching screen designs, as material moves to chute, the complete material of actual cloth and coke collapse。For the data that the foundation offer of mathematical model is important。
Accompanying drawing illustrates:
Fig. 1: blast furnace clock-free cloth automatic control system figure of the present invention；
Fig. 2: touch screen " real-time pictures " figure in blast furnace clock-free cloth automatic control system of the present invention；
Fig. 3: touch screen " distributing mode " figure in blast furnace clock-free cloth automatic control system of the present invention；
Fig. 4: touch screen " cloth setting " figure in blast furnace clock-free cloth automatic control system of the present invention；
Fig. 5: in blast furnace clock-free cloth automatic control system cloth process of the present invention, the anglec of rotation is schemed over time；
Fig. 6: in blast furnace clock-free cloth automatic control system cloth process of the present invention, turning angle is schemed over time。
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further details。
Ensureing field apparatus, PLC, touch screen, computer, and when hub normal operation, touch screen carrying out the setting of parameter:
First: enter " distributing mode " picture, select according to the applicable cases of actual blast furnace: multi-ring, clockwise, edge to center, manual distributing mode；Entering " cloth setting " picture by the switching push button below touch screen, arrange charge number, burden distribution matrix, as described in Table 1, the rotary speed 192o/s of chute, fascinate speed 6o/s, and chute position of readiness includes the anglec of rotation 0 degree, the setting that turning angle is 0 degree。
Table 1: the setting of burden distribution matrix
| Gear | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| Angle (o) | 42.7 | 40.8 | 38.9 | 36.5 | 34.1 | 31.2 | 28.8 | 25.5 | 22.6 | 19.3 | 15.9 | 12.6 | 7.3 |
| The number of turns | 2 | 4 | 4 | 4 | 4 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
Then: be switched to " real-time pictures " by the switching push button below touch screen, need on-the-spot equipment is operated according to experiment, click " air-supply " button according to this to blow, clicking " position of readiness " button makes chute carry out reset operation, clicking " initial position " makes chute move to initial position, and click " rotation starts " button makes chute start cloth operation。
Cloth operation starts the rear anglec of rotation, turning angle and air quantity and blast and material flow gate aperture all can be shown in " in real-time pictures " in real time, and these values are transferred on computer for experiment post analysis simultaneously。Meanwhile operator can also record the important phenomenon in experiment in experimentation, can pass through to click " moving to chute ", " coke collapse " and " the complete material of actual cloth " button then PLC can automatically record chute and move to the time of chute, time that in cloth Ore process, coke caves in and the time of the complete material of actual cloth, these values show on the touchscreen, also can be transferred on computer for analyzing simultaneously。The complete material event of the chute starting point as timing, i.e. 0s, coke collapse event and actual cloth that wherein moves to is all in this, as time zero。
After testing and finishing, finally recall the parameter of these settings, real-time parameter, and the parameter of typing on computers make relevant chart, and carry out the analysis of experimentation, obtain chart as shown in Figure 5 and Figure 6。
Claims (1)
1. a blast furnace clock-free cloth experiment automatic control system, it is characterized in that, this system is mainly by PLC, on-the-spot actuator, touch screen, computer, and hub composition, PLC, touch screen, computer constitute Ethernet by hub and carry out data exchange, and PLC forms CC-Link bus network with on-the-spot actuator by CC-Link master station module and far module；
Described on-the-spot actuator includes: material flow control valve, Air Flow Rate Instrument, blast instrument, electric rotating machine and tilting motor, the control to actuator, including to material flow control valve, Air Flow Rate Instrument, and the control of electric rotating machine and tilting motor；The control of material flow control valve, Air Flow Rate Instrument is operated by personnel at touch screen input angle and flow value, and actuator is controlled realizing by PLC, and this input value shows on the touchscreen and is transferred to computer；To electric rotating machine, tilting motor control by touch screen input burden distribution matrix, PLC program is calculated according to input value and controls actuator, and this input value shows on the touchscreen and is transferred to computer；
On-the-spot actuator feedback signal is acquired, including material valve aperture, air quantity, the collection of blast feedback signal；Wherein expect flow control valve, air quantity, blast feedback signal by CC-Link remote analog amount input module to gather signal, the signal collected by PLC internal data process convert, this value shows on the touchscreen and is transferred to computer；
The signals collecting of PLC control unit is included the anglec of rotation and turning angle；Being read the encoder of servomotor self band by PLC, and converted by internal data, this value real-time change display in cloth process on the touchscreen and are transferred to computer；
Described touch screen includes 3 display pictures, " real-time pictures ", " distributing mode " and " cloth setting ", after operator carry out the arranging of experiment parameter under " distributing mode " and " cloth setting " picture, return to " real-time pictures " and equipment is operated and phenomenon in typing experimentation；
Each parameter arranging typing on the touchscreen in parameter, the parameter of real-time change and experimentation is all transferred to computer, and experiment makes correlation graph after terminating, and can analyze cloth process。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310504411.XA CN104561417B (en) | 2013-10-23 | 2013-10-23 | Automatic control system for bell-less material distribution experiment of blast furnace |
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| CN201310504411.XA CN104561417B (en) | 2013-10-23 | 2013-10-23 | Automatic control system for bell-less material distribution experiment of blast furnace |
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| CN104561417A CN104561417A (en) | 2015-04-29 |
| CN104561417B true CN104561417B (en) | 2016-06-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109347673A (en) * | 2018-10-26 | 2019-02-15 | 苏州华兴源创科技股份有限公司 | A kind of PLC means of communication, device, equipment and storage medium |
| CN112213985A (en) * | 2019-07-11 | 2021-01-12 | 上海启松自动化设备有限公司 | Touch screen monitoring method and system based on PLC |
| CN110926228B (en) * | 2019-10-31 | 2021-04-27 | 中冶宝钢技术服务有限公司 | Dismounting device and dismounting method for blanking flow regulating valve for blast furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0593215A (en) * | 1990-11-09 | 1993-04-16 | Nkk Corp | Apparatus for controlling distribution of charged materials into bell-less blast furnace |
| JP2007077427A (en) * | 2005-09-13 | 2007-03-29 | Yaskawa Electric Corp | Device for controlling thickness of raw material layer in bell-less blast furnace, and controlling method therefor |
| CN201041705Y (en) * | 2006-12-28 | 2008-03-26 | 中冶南方工程技术有限公司 | Blast furnace slot distribution and feeding simulation device |
| CN202093729U (en) * | 2011-05-26 | 2011-12-28 | 东北大学 | Material distributing simulation test device for melting gasifier |
| CN103194555A (en) * | 2013-04-12 | 2013-07-10 | 北京首钢国际工程技术有限公司 | System for researching material distribution rule of furnace top equipment |
-
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- 2013-10-23 CN CN201310504411.XA patent/CN104561417B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0593215A (en) * | 1990-11-09 | 1993-04-16 | Nkk Corp | Apparatus for controlling distribution of charged materials into bell-less blast furnace |
| JP2007077427A (en) * | 2005-09-13 | 2007-03-29 | Yaskawa Electric Corp | Device for controlling thickness of raw material layer in bell-less blast furnace, and controlling method therefor |
| CN201041705Y (en) * | 2006-12-28 | 2008-03-26 | 中冶南方工程技术有限公司 | Blast furnace slot distribution and feeding simulation device |
| CN202093729U (en) * | 2011-05-26 | 2011-12-28 | 东北大学 | Material distributing simulation test device for melting gasifier |
| CN103194555A (en) * | 2013-04-12 | 2013-07-10 | 北京首钢国际工程技术有限公司 | System for researching material distribution rule of furnace top equipment |
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