CN102839248A - Online detection device and detection method of blast furnace swinging chute - Google Patents
Online detection device and detection method of blast furnace swinging chute Download PDFInfo
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- CN102839248A CN102839248A CN2012103490605A CN201210349060A CN102839248A CN 102839248 A CN102839248 A CN 102839248A CN 2012103490605 A CN2012103490605 A CN 2012103490605A CN 201210349060 A CN201210349060 A CN 201210349060A CN 102839248 A CN102839248 A CN 102839248A
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- oscillating chute
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Abstract
The invention discloses an online detection device of a position of a blast furnace swinging chute, comprising imaging equipment, a laser device, a field control cabinet, an indoor control cabinet, a purifying power supply, a video image processing unit, a signal converter and an alarming device, wherein the imaging equipment and the laser device are mounted at a furnace top of a blast furnace; a control system is formed by the field control cabinet and the indoor control cabinet; the purifying power supply is used for supplying power to the system; the laser device emits laser to a pre-set position of a movement track of the swinging chute; the imaging equipment photographs a position image of the swinging chute after receiving a triggering signal of the control system; the video image processing unit is used for carrying out analysis treatment on the image of the swinging chute photographed by the imaging equipment, determining the position of the swinging chute and comparing the position with a pre-set swinging chute control angle; and when a difference value exceeds a standard, an alarm instruction is sent to an acousto-optic alarm and a feedback signal is output. According to the online detection device disclosed by the invention, the position of the swinging chute is detected on line in real time; and the detection precision is high, the performance is stable and the accurate material distribution of the blast furnace can be guaranteed.
Description
Technical field
The present invention relates to metallurgical technology field, particularly relate to a kind of blast furnace oscillating chute on-line measuring device and detection method.
Background technology
In the blast furnace ironmaking production process of metallurgy industry, blast furnace material distribution is a most important ring in the system for blast furnace ironmaking.Can be in time, accurately, rationally cloth is to guarantee that blast furnace production carries out smoothly and guarantee the product quality premise condition equably.Therefore, the control of oscillating chute just seems extremely important.When blast furnace carried out cloth, furnace charge at first through ore deposit groove proportioning process, got into furnace roof elevating hopper and hopper then; After receiving blast furnace material distribution instruction, the material flow gate of hopper is opened to the aperture of setting by processing requirement, and furnace charge flows on the oscillating chute through the cloth feed roller by certain flow; Oscillating chute is raised to certain angle of fascinating (being the angle of the vertical center line of oscillating chute and blast furnace) by processing requirement, and simultaneously, oscillating chute is carrying out at the uniform velocity rotation on the horizontal plane direction, like this furnace charge just equably cloth to the charge level of blast furnace.
This shows, in chute cloth process, plane corner and the angle of fascinating be the control furnace charge in stove radially with the circumferential important parameter of cloth, and the safety at the angle of fascinating and accuracy then are the keys in the whole blast furnace material distribution process.So, how exactly the wobble detection chute fascinate the angle, strictly according to the facts reflect the real conditions of oscillating chute and in time detection feedback data, adjustment chute the PLC controlled variable to guarantee blast furnace material distribution evenly rationally, guarantee blast furnace smoothly, safety, operation efficiently has crucial meaning.
At present, in blast-furnace smelting, oscillating chute is driven by two motors mostly, and the control of motor is sent steering order by the PLC program, and the motor frequency conversion device is started or stoped; The movement velocity of chute then is to realize through the frequency that changes frequency transformer.So the detection of the angle α that fascinates of oscillating chute also realizes by scrambler mostly.In this detection mode; Scrambler generally all is installed on the deboost axle of drive-motor, and scrambler sends binary command and gives PLC, by the PLC program binary command that receives is handled; Obtain the parameter at the angle of fascinating of oscillating chute at last, realize control in view of the above oscillating chute.
But aforesaid method is low because of self accuracy of detection, the factors such as distortion of mechanical transmission structure wearing and tearing or oscillating chute, makes the fascinate detection data at angle not conform to reality, thereby has influenced the homogeneity of blast furnace material distribution, has brought potential safety hazard to production.
Summary of the invention
In order to solve the problems of the technologies described above, the on-line measuring device of the blast furnace oscillating chute position that an object of the present invention is to provide a kind of accuracy of detection height, can report to the police automatically;
Another object of the present invention provides a kind of detection method of above-mentioned on-line measuring device.
For this reason, technical scheme of the present invention is following:
The on-line measuring device of a kind of blast furnace oscillating chute position; Comprise the imaging device that is installed in the blast furnace furnace roof and laser apparatus, forming control system field control case and indoor controlling box, be power conditioner and video image processing unit, signal converter and the warning device of system's power supply; Said imaging device and laser apparatus are installed in respectively in the high temperature protection cover
The predetermined position emission laser of said laser apparatus on said oscillating chute movement locus;
Said imaging device is received the site plan picture of taking oscillating chute after the triggering signal of said system;
Said video image processing unit carries out analyzing and processing, confirms the position of oscillating chute and compare with preset oscillating chute control angle the oscillating chute image that said imaging device photographs; When the two difference overshoot, export digital guard signal and to oscillating chute control unit output feedback signal;
After becoming simulating signal, the numeral warning conversion of signals that said signal converter is exported said video image processing unit exports to said warning device.
Said protecting jacket is air-cooled protecting jacket, and its cooling blowing medium is a nitrogen.
Said nitrogen gas pressure is 0.40～0.6MPa, in temperature in≤35 at protecting jacket place ℃.
Described laser apparatus is a stripe laser.
Said video image processing unit is industrial computer and indicating meter.
A kind of detection method of above-mentioned on-line measuring device may further comprise the steps:
1) the predetermined position emission laser of said laser apparatus on said oscillating chute movement locus;
2) said imaging device obtains the video image of oscillating chute in the blast furnace, and transfers to said video image processing unit;
3) horizontally rotate angle when reaching set(ting)value when said oscillating chute, said video image processing unit is analyzed the video image that receives, and finds the position of laser beam, thereby confirms the position of oscillating chute;
4) said video image processing unit goes out the turning angle of oscillating chute according to the position calculation of swing centre point position/coordinate, blast furnace vertical center line and the oscillating chute of known oscillating chute;
5) said video image processing unit is compared the control angle of the turning angle that calculates and oscillating chute control unit output, when the two difference overshoot value, sending the indication and from trend oscillating chute control unit output feedback signal of reporting to the police;
6) said signal converter is exported to said warning device after the numeral warning conversion of signals of said video image processing unit output is become simulating signal; Simultaneously, the oscillating chute control unit is according to the controlled variable of said feedback signal adjustment oscillating chute.
On-line measuring device of the present invention can real-time online wobble detection chute the position; Accuracy of detection is high, stable performance; Solved present blast furnace oscillating chute parameter and the actual technical barrier that does not conform to that the angle detection system reflected that fascinate; Realize the accurate cloth of blast furnace, guaranteed production safety.
Description of drawings
Fig. 1 is the formation synoptic diagram of blast furnace oscillating chute on-line measuring device of the present invention;
Fig. 2 is the synoptic diagram of video monitoring picture.
Embodiment
Below in conjunction with accompanying drawing blast furnace oscillating chute on-line measuring device of the present invention is elaborated.
As shown in Figure 1, blast furnace oscillating chute on-line measuring device of the present invention mainly is made up of laser apparatus 1, imaging device 2, field control case 3, power conditioner 4, indoor controlling box 5, indicating meter 6, industrial computer 7, signal converter 9 and warning howler 10.
Said imaging device 1 is the front end video capture device, adopts dedicated video camera and camera lens.When the PLC system is sent triggering signal (when oscillating chute arrives specific position), imaging device is taken the site plan picture of oscillating chute in the stove at once, shown in accompanying drawing 2.For guaranteeing imaging device and laser apparatus works better in the blast furnace of high temperature, high dust, adopt the high temperature protection cover respectively they to be protected.Said protecting jacket is air-cooled protecting jacket, and heat-eliminating medium is a low-pressure nitrogen, through the purging that nitrogen does not stop, guarantees imaging device and laser apparatus steady operation.
Said industrial computer 7 is formed graphics processing unit with indicating meter 6; Be used to analyze the oscillating chute image that pick up camera photographs; Confirm the position of oscillating chute through the data processing of computingmachine; Calculate the turning angle of oscillating chute, and compare with the oscillating chute control angle that PLC sends.When the two difference overshoot, automatic output feedback signal, combined aural and visual alarm 10 sends guard signal simultaneously.
Field control case 3, indoor controlling box 5 and power conditioner 4 are the electrical control equipment of system, for other system equipment provides power supply and wave, guarantee system's works better.
Below in conjunction with Fig. 2 the detection method of above-mentioned on-line measuring device is described.
As shown in the figure, at first, the predetermined position emission laser of laser apparatus on the oscillating chute movement locus;
Then, the pick up camera of holding a sword in one's hand obtains the video image of oscillating chute in the blast furnace, and is transferred to industrial computer;
When oscillating chute horizontally rotates angle when reaching set(ting)value, industrial computer is analyzed the video image that receives, and finds the position of laser beam, confirms the position of oscillating chute;
Industrial computer goes out the turning angle of oscillating chute according to the position calculation of swing centre point position/coordinate, blast furnace vertical center line and the oscillating chute of known oscillating chute;
Then; Industrial computer is compared the control angle of turning angle that calculates and oscillating chute PLC output; When the two difference overshoot value, send the oscillating chute control unit output feedback signal of reporting to the police indication and carrying from trend oscillating chute equipment;
After becoming simulating signal, the numeral warning conversion of signals that signal converter is exported the video image processing unit exports to said warning device; Simultaneously, the oscillating chute control unit is according to the controlled variable of said feedback signal adjustment oscillating chute.
After warning device sent the sound and light alarm signal, operator can take corresponding measure.
Claims (6)
1. the on-line measuring device of a blast furnace oscillating chute position; It is characterized in that: comprise the imaging device that is installed in the blast furnace furnace roof and laser apparatus, forming control system field control case and indoor controlling box, be power conditioner and video image processing unit, signal converter and the warning device of system's power supply; Said imaging device and laser apparatus are installed in respectively in the high temperature protection cover
The predetermined position emission laser of said laser apparatus on said oscillating chute movement locus;
Said imaging device is received the site plan picture of taking oscillating chute after the triggering signal of said system;
Said video image processing unit carries out analyzing and processing, confirms the position of oscillating chute and compare with preset oscillating chute control angle the oscillating chute image that said imaging device photographs; When the two difference overshoot, export digital guard signal and to oscillating chute control unit output feedback signal;
After becoming simulating signal, the numeral warning conversion of signals that said signal converter is exported said video image processing unit exports to said warning device.
2. on-line measuring device according to claim 1 is characterized in that: said protecting jacket is air-cooled protecting jacket, and its cooling blowing medium is a nitrogen.
3. on-line measuring device according to claim 2 is characterized in that: said nitrogen gas pressure is 0.40～0.6MPa, in temperature in≤35 at protecting jacket place ℃.
4. on-line measuring device according to claim 1 is characterized in that: described laser apparatus is a stripe laser.
5. on-line measuring device according to claim 1 is characterized in that: said video image processing unit is industrial computer and indicating meter.
6. the detection method of the said on-line measuring device of claim 1 is characterized in that may further comprise the steps:
1) the predetermined position emission laser of said laser apparatus on said oscillating chute movement locus;
2) said imaging device obtains the video image of oscillating chute in the blast furnace, and transfers to said video image processing unit;
3) horizontally rotate angle when reaching set(ting)value when said oscillating chute, said video image processing unit is analyzed the video image that receives, and finds the position of laser beam, thereby confirms the position of oscillating chute;
4) said video image processing unit goes out the turning angle of oscillating chute according to the position calculation of swing center of circle point coordinate, blast furnace vertical center line and the oscillating chute of known oscillating chute;
5) said video image processing unit is compared the control angle of the turning angle that calculates and oscillating chute control unit output, when the two difference overshoot value, sending the indication and from trend oscillating chute control unit output feedback signal of reporting to the police;
6) said signal converter is exported to said warning device after the numeral warning conversion of signals of said video image processing unit output is become simulating signal; Simultaneously, the oscillating chute control unit is according to the controlled variable of said feedback signal adjustment oscillating chute.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103490605A CN102839248A (en) | 2012-09-18 | 2012-09-18 | Online detection device and detection method of blast furnace swinging chute |
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| CN2012103490605A CN102839248A (en) | 2012-09-18 | 2012-09-18 | Online detection device and detection method of blast furnace swinging chute |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986866A (en) * | 2019-11-30 | 2020-04-10 | 邯郸钢铁集团有限责任公司 | Method for measuring deformation of material distribution chute of blast furnace |
| CN112126731A (en) * | 2020-09-17 | 2020-12-25 | 马鞍山钢铁股份有限公司 | Method and system for measuring chute angle of blast furnace |
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| TW538232B (en) * | 2001-12-31 | 2003-06-21 | China Steel Corp | Automatic particle diameter measurement equipment by on-line optical analysis |
| CN101714001A (en) * | 2009-11-30 | 2010-05-26 | 中冶东方工程技术有限公司 | Automatic control device and method of rotary chute pair transmission tilt angle of blast furnace bell-less top |
| CN201523429U (en) * | 2009-07-20 | 2010-07-07 | 天津市三特电子有限公司 | Wind-cooling type high-temperature industrial television system |
| CN201733399U (en) * | 2010-04-02 | 2011-02-02 | 天津市三特电子有限公司 | Water-cooled high-temperature industrial TV system |
| CN202830066U (en) * | 2012-09-18 | 2013-03-27 | 天津市三特电子有限公司 | Online detection device for swinging chute of blast furnace |
-
2012
- 2012-09-18 CN CN2012103490605A patent/CN102839248A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW538232B (en) * | 2001-12-31 | 2003-06-21 | China Steel Corp | Automatic particle diameter measurement equipment by on-line optical analysis |
| CN201523429U (en) * | 2009-07-20 | 2010-07-07 | 天津市三特电子有限公司 | Wind-cooling type high-temperature industrial television system |
| CN101714001A (en) * | 2009-11-30 | 2010-05-26 | 中冶东方工程技术有限公司 | Automatic control device and method of rotary chute pair transmission tilt angle of blast furnace bell-less top |
| CN201733399U (en) * | 2010-04-02 | 2011-02-02 | 天津市三特电子有限公司 | Water-cooled high-temperature industrial TV system |
| CN202830066U (en) * | 2012-09-18 | 2013-03-27 | 天津市三特电子有限公司 | Online detection device for swinging chute of blast furnace |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986866A (en) * | 2019-11-30 | 2020-04-10 | 邯郸钢铁集团有限责任公司 | Method for measuring deformation of material distribution chute of blast furnace |
| CN110986866B (en) * | 2019-11-30 | 2021-10-15 | 邯郸钢铁集团有限责任公司 | Method for measuring deformation of material distribution chute of blast furnace |
| CN112126731A (en) * | 2020-09-17 | 2020-12-25 | 马鞍山钢铁股份有限公司 | Method and system for measuring chute angle of blast furnace |
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Application publication date: 20121226 |