CN102392098A - Roughing slag detection system for steel furnace - Google Patents
Roughing slag detection system for steel furnace Download PDFInfo
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- CN102392098A CN102392098A CN2011103445376A CN201110344537A CN102392098A CN 102392098 A CN102392098 A CN 102392098A CN 2011103445376 A CN2011103445376 A CN 2011103445376A CN 201110344537 A CN201110344537 A CN 201110344537A CN 102392098 A CN102392098 A CN 102392098A
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- melting furnace
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The present invention provides a roughing slag detection system for a steel furnace, which comprises a video camera, a computer and a monitor, wherein the video camera comprises two image sensors, one of the image sensors is mainly used for obtaining image information of the molten steel transferred from a steel furnace to a steel ladle as well as of slag in the molten steel, and the other image sensor is mainly used for obtaining the image information of the steel ladle, the steel furnace wall and the background around the wall; the computer is used for processing the image information obtained by the video camera; and the monitor is used for monitoring the image information obtained by the video camera and the state information processed by the computer. The roughing slag detection system for a steel furnace provided by the present invention can prevent middle-stage roughing slag interference and can recognize the in-place of the steel ladle and nice colors for the steel ladle, the steel furnace wall and the background around the wall.
Description
Technical field
The present invention relates to the steel-making continuous casting technical field, especially, relate to slag detection system under a kind of steel melting furnace.
Background technology
In the steel-making continuous casting field; Need transfer to the molten steel in the steel melting furnace in another container as transfer to molten steel the ladle (big bag) from converter or electric furnace, in the molten steel transfer process, can follow slag (slag or slag) thus get into the quality that next process influences steel.The following quantity of slag when reducing the steel melting furnace tapping not only can reduce the molten steel rephosphorization, improves the molten steel yield, can also reduce the inclusion in the molten steel; Improve the molten steel cleanliness factor; And can reduce the consumption of the dry slag and the anti-material of ladle, and prolong ladle work-ing life, reduce steel-making cost.
Stopping steel melting furnace immediately when for this reason, needing the content of appearance slag and the slag of a kind of slag detection system down in steel flow to surpass permissible value continues to topple over molten steel to ladle.As everyone knows; Transfer to molten steel in the process of ladle at steel melting furnace; Having the three phases slag follows molten steel to transfer to ladle; First stage occurs in the starting stage that molten steel shifts, and second stage occurs in the mid-term stage that molten steel shifts, and this stage tapping process forms whirlpool volume slag; Three phases occurs in the latter stage that molten steel shifts, and the process of following molten steel to transfer to ladle together to fs, subordinate phase and phase III slag is called for short early stage slag, slag and slag under latter stage under mid-term down respectively.In order to control and to reduce slag and transfer to the content the ladle and obtain the peak use rate of molten steel from steel melting furnace, usually in view of under fs and the subordinate phase during slag because of also having a large amount of molten steel not stop in steel melting furnace, to continue in the steel melting furnace to ladle transfer molten steel.Existing slag detection system down can both detect the following slag of three phases; And down slag and the content that detects slag under mid-term during slag shield above permissible value and do not export sound and light alarm or/and lift the stove signal in early stage; But slag under mid-term since the corrosion of tap hole make tap hole progressively chap cause the tapping time to shorten being difficult to shielding, often slag under the later stage being caused interference.Existing slag detection system down mainly contains EM and image pick-up device method, and EM is the tap hole arranged around solenoid at steel melting furnace, utilizes molten steel and slag to have different magnetic permeabilities to differentiate the appearance of slag.EM need be transformed tap hole, and the tap hole surrounding temperature is high, and steel cinder dust is many, the environment very severe, and installation and maintenance are very inconvenient.The image pick-up device method is non-contactly steel flow to be made a video recording at a distance through image pick-up device, and the different radiation values of spectrographic is judged the content of slag in the steel stream according to molten steel and slag.So the image pick-up device method just progressively replaces EM, but the image pick-up device method all only adopts the image pick-up device such as the US6129888 that contain an image sensor to use an infrared camera at present, and CN101149338A uses the technical scheme of a CCD.Because molten steel and slag and make steel the furnace wall and on every side the brightness value of background differ very big; An image pick-up device or can only detect the slag in the steel flow and often disturbed; Can only clearly monitor ladle, steel-making furnace wall and background on every side thereof; And can not take into account the slag that detects in the steel flow simultaneously and clearly monitor ladle, make steel furnace wall and background on every side thereof; Prevented that not slag detects the interference that produces under the mid-term, do not see Chu's ladle arrive desired location whether allow steel melting furnace to ladle shift molten steel and can not to ladle, steel-making furnace wall and the painted well realization of background on every side thereof not good-looking demand.
Therefore, be necessary to provide a kind of prevent slag interference under mid-term, highly reliable alarm rate, identification ladle arrive desired location and to ladle, steel-making furnace wall and on every side background the following slag detection system of good-looking color.
Summary of the invention
The object of the invention is to provide slag detection system under a kind of steel melting furnace, with solution disturbed by slag, alarm rate is unreliable, can not discern that ladle arrives desired location and to ladle, molten steel, the painted ugly technical problem of steel melting furnace.
For realizing above-mentioned purpose; The invention provides slag detection system under a kind of steel melting furnace; Comprise: image pick-up device; Comprise two image sensors, one of them image sensor is mainly used in to obtain from steel melting furnace and shifts the graphicinformation of slag molten steel and the steel flow to ladle, and another image sensor is mainly used in and obtains ladle, makes steel the furnace wall and the graphicinformation of background on every side thereof;
Computingmachine is used to handle the graphicinformation that image pick-up device obtains;
Watch-dog is used to keep watch on graphicinformation that image pick-up device obtains and the status information after the CP.
Further, image pick-up device is meant by a camera lens and two image pick-up devices that image sensor is integrated in one.
Further, image sensor is a ccd sensor.
Further, image sensor is a cmos sensor.
Further, the graphicinformation obtained of CP image pick-up device comprise computingmachine according to ladle, steel-making furnace wall and on every side the graphicinformation of background confirm whether ladle arrives desired location and send the signal that allows steel melting furnace to shift molten steel to ladle confirming that ladle arrives under the situation of desired location.
Further, the graphicinformation obtained of CP image pick-up device comprise computingmachine according to ladle, steel-making furnace wall and on every side the graphicinformation of background confirm steel melting furnace whether arrive desired location and confirm steel melting furnace arrive send under the situation of desired location allow under the slag guard signal.
Further, computingmachine according to ladle, steel-making the furnace wall and on every side background graphicinformation to ladle, steel-making the furnace wall and on every side background carry out painted according to gray-scale value.
Send slag guard signal down when further, computingmachine confirms according to the graphicinformation of slag in molten steel and the steel flow whether the content of slag in the steel flow surpasses permissible value and the content of slag surpasses permissible value in confirming steel flow.
Further, the slag guard signal was sent the signal that stops to shift to ladle from steel melting furnace molten steel and slag after the slag guard signal down with allowing under computingmachine was confirmed to occur simultaneously.
The present invention has following beneficial effect:
The image pick-up device that use comprises two image sensors can be taken into account the slag that detects in the steel flow simultaneously and clearly monitor ladle, makes steel furnace wall and background on every side thereof; 1; An image sensor helps distinguishing of slag and molten steel with short exposure time monitoring molten steel and slag, improves slag detection alarm rate down; 2; Another image sensor is to grow time shutter monitoring ladle, steel-making furnace wall and background on every side thereof; On the one hand can before ladle shifts molten steel, see ladle clearly and arrive desired location and substitute conventional artificial and judge, reduce labour intensity and prevent that operator from judging by accident and transfer to the ladle outside to the molten steel of steel melting furnace and cause waste and damage miscellaneous equipment at steel melting furnace; On the other hand, see steel melting furnace clearly and whether arrive desired location and under the situation of confirming steel melting furnace arrival desired location, send slag guard signal under the permission, help preventing that slag disturbs under mid-term, improve reliable alarm rate; In addition, long time shutter image energy is more clearly visible ladle, steel-making furnace wall, is more conducive to computingmachine and it is carried out the painted operator of being convenient to keeps watch on the tapping state.
Except top described purpose, feature and advantage, the present invention also has other purpose, feature and advantage.To do further detailed explanation to the present invention with reference to figure below.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is slag detection system figure under the converter of the preferred embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Slag detection system under a kind of steel melting furnace is provided according to an aspect of the present invention; Comprise: image pick-up device; Comprise two image sensors; One of them image sensor is mainly used in to obtain from steel melting furnace and shifts the graphicinformation of molten steel and slag to ladle, and another image sensor is mainly used in and obtains ladle, makes steel the furnace wall and the graphicinformation of background on every side thereof.
For further understanding the present invention, the present embodiment steel melting furnace describes with the image pick-up device of converter, a camera lens and two ccd image sensors.
As shown in Figure 1, converter 101 has been refined and has been rotated to certain angle around axle 104 behind the molten steel and as 80 ℃ molten steel 103 is transferred in the ladle 106 through tap hole 105, and this process abbreviates tapping as.Owing to the density of slag 102 floats over above the molten steel than the low of molten steel 103; (angle of converter this moment is to 95 ℃) slag 102 can need stop tapping to stop more slag entering ladle along with molten steel 103 is transferred in the ladle 106 together when the content of slag in the steel flow surpasses permissible value when the fast end of tapping.
Image pick-up device 107 is made up of a camera lens 107a and two CCD 107b, 107c, and CCD 107b is mainly used in and obtains ladle, furnace walls and the graphicinformation of background on every side thereof, and CCD 107c is mainly used in the graphicinformation of obtaining slag in molten steel and the steel flow.Because ladle, furnace walls and brightness on every side thereof are very little, clearly image need be the corresponding optical parametric time shutter growth of CCD 107b in order to obtain them; And because the brightness of molten steel and slag is very big, for obtaining the graphicinformation of recognizable molten steel and slag, need shorten the corresponding optical parametric time shutter of CCD 107c.The image pick-up device that an existing ccd image sensor is formed can not be taken into account simultaneously and detect the slag in the steel flow and clearly monitor ladle, furnace walls and background and the picture quality that obtains on every side, give up the picture quality of a part of steel flow or will give up a part of ladle, furnace walls and the sharpness of background image on every side.
The graphicinformation that image pick-up device 107 obtains is given computingmachine 110 through cable 108 and is handled.The graphicinformation that computingmachine obtains image pick-up device 107 is handled and is comprised that definite ladle 106 arrives desired locations and sends the signal that allows converter 101 to shift molten steel 103 to ladle; Confirm that converter 101 arrives desired location and sends permission slag guard signal down; The content of confirming slag in the steel flow sends down the slag guard signal above permissible value, and the slag guard signal signal that stops to shift to ladle 106 from converter 101 molten steel and slag occurs simultaneously with following slag guard signal under confirming to allow.This stops to comprise that from the signal that converter is shifted molten steel and slag to ladle the signal or the converter of automatic startup enforcement converter pushing off the slag/lead slag lift the stove signal automatically.The above-mentioned signal that stops to shift molten steel and slag to ladle from converter also can be transported to warning howler 111 through cable 108 and send sound and light alarm and manually stop to continue transfer molten steel and slag from converter 101 to ladle with alert; The graphicinformation that 110 pairs of image pick-up devices of computingmachine 107 obtain handle also comprise to ladle 106, furnace walls 101 and on every side background carry out paintedly according to gray-scale value, image knows that more coloring effect is good more promptly good-looking more.Ladle 106 arrives confirming and can in ladle 106 and converter 101, looking for a fixed reference bit respectively of desired location with converter 101; On the desired location of the movement locus of ladle and converter, do sign, when reference bit arrives desired location, send the signal that ladle 106 and converter 101 arrive desired locations respectively., ladle 106 could shift molten steel to ladle when arriving desired location from converter 101; When converter 101 arrives desired locations, just can give the slag guard signal, this can effectively prevent slag under mid-term interference, improve reliable alarm rate.
Watch-dog 109 can show the graphicinformation from CCD107b, 107c; Preferably; The graphicinformation that only shows CCD107b; Also can be through extracting CCD107c steel stream and CCD107b except that the image of steel stream and they are carried out the synthetic mode show, be convenient to operator and keep watch on and detection system judges that accurately ladle arrives desired location and just begins from converter just slag warning under the permission after ladle shifts molten steel to arrive desired location with converter from watch-dog.The status information of watch-dog 109 after also but supervisory computer is handled, this status information can comprise that system is normal, fault, following slag is reported to the police, the tapping time etc.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. slag detection system under the steel melting furnace is characterized in that, comprising:
Image pick-up device; Comprise two image sensors; One of them image sensor is mainly used in to obtain from steel melting furnace and shifts the graphicinformation of slag molten steel and the steel flow to ladle, and another image sensor is mainly used in and obtains ladle, makes steel the furnace wall and the graphicinformation of background on every side thereof;
Computingmachine is used to handle the graphicinformation that said image pick-up device obtains;
Watch-dog is used to keep watch on graphicinformation that said image pick-up device obtains and the status information after the said CP.
2. slag detection system under the steel melting furnace as claimed in claim 1 is characterized in that, said image pick-up device is meant by a camera lens and two image pick-up devices that image sensor is integrated in one.
3. like slag detection system under the arbitrary described steel melting furnace of claim 1-2, it is characterized in that said image sensor is a ccd sensor.
4. like slag detection system under the arbitrary described steel melting furnace of claim 1-2, it is characterized in that said image sensor is a cmos sensor.
5. slag detection system under the steel melting furnace as claimed in claim 1; It is characterized in that, the graphicinformation that the said image pick-up device of said CP obtains comprise said computingmachine according to said ladle, steel-making furnace wall and on every side the graphicinformation of background confirm whether said ladle arrives desired location and send the signal that allows steel melting furnace to shift molten steel to ladle confirming that said ladle arrives under the situation of desired location.
6. slag detection system under the steel melting furnace as claimed in claim 1; It is characterized in that, the graphicinformation that the said image pick-up device of said CP obtains comprise said computingmachine according to said ladle, steel-making furnace wall and on every side the graphicinformation of background confirm said steel melting furnace whether arrive desired location and confirm said steel melting furnace arrive send under the situation of desired location allow under the slag guard signal.
7. like slag detection system under claim 5 or the 6 described steel melting furnaces, it is characterized in that, said computingmachine according to said ladle, steel-making the furnace wall and on every side background graphicinformation to ladle, steel-making the furnace wall and on every side background carry out painted according to gray-scale value.
8. device as claimed in claim 1; It is characterized in that said computingmachine sends slag guard signal down when confirming according to the graphicinformation of slag in said molten steel and the steel flow whether the content of slag in the said steel flow surpasses permissible value and the content of slag surpasses permissible value in confirming said steel flow.
9. slag proofing unit under the steel melting furnace as claimed in claim 8 is characterized in that, said computingmachine is confirmed to occur simultaneously said slag guard signal down and sent the signal that stops to shift to ladle from steel melting furnace said molten steel and slag after the slag guard signal down with allowing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103445376A CN102392098A (en) | 2011-11-04 | 2011-11-04 | Roughing slag detection system for steel furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103445376A CN102392098A (en) | 2011-11-04 | 2011-11-04 | Roughing slag detection system for steel furnace |
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| CN102392098A true CN102392098A (en) | 2012-03-28 |
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| CN2011103445376A Pending CN102392098A (en) | 2011-11-04 | 2011-11-04 | Roughing slag detection system for steel furnace |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921915A (en) * | 2012-10-23 | 2013-02-13 | 杭州谱诚泰迪实业有限公司 | Slag carry-over detection method and device based on image recognition of vortex on surface of molten steel |
| CN105160683A (en) * | 2015-09-29 | 2015-12-16 | 田陆 | Molten iron drossing detection and control system based on manual intervention, and method thereof |
| CN105353654A (en) * | 2015-09-29 | 2016-02-24 | 田陆 | System and method of detection and control of melted iron drossing on the basis of image processing |
| CN109164126A (en) * | 2018-10-18 | 2019-01-08 | 武汉中飞扬测控工程有限公司 | A kind of infrared converter Lower proterozoic group system |
| CN110268074A (en) * | 2017-02-14 | 2019-09-20 | 日本制铁株式会社 | Slag inspection method in molten steel stream |
| CN110268073A (en) * | 2017-02-14 | 2019-09-20 | 日本制铁株式会社 | Slag inspection method in molten steel stream |
| WO2021208324A1 (en) * | 2020-04-16 | 2021-10-21 | 中冶赛迪工程技术股份有限公司 | Image-based temperature measurement and sampling gun placing position intelligent detection method and system |
| CN114829633A (en) * | 2019-12-20 | 2022-07-29 | 普锐特冶金技术奥地利有限公司 | Method and system for monitoring the decanting process of liquid metal and/or slag of metallurgical vessels |
| CN115595395A (en) * | 2022-09-08 | 2023-01-13 | 福建三宝钢铁有限公司（Cn） | Steelmaking process of atmospheric corrosion resistant steel HRB400aE converter |
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| CN114829633A (en) * | 2019-12-20 | 2022-07-29 | 普锐特冶金技术奥地利有限公司 | Method and system for monitoring the decanting process of liquid metal and/or slag of metallurgical vessels |
| WO2021208324A1 (en) * | 2020-04-16 | 2021-10-21 | 中冶赛迪工程技术股份有限公司 | Image-based temperature measurement and sampling gun placing position intelligent detection method and system |
| CN115595395A (en) * | 2022-09-08 | 2023-01-13 | 福建三宝钢铁有限公司（Cn） | Steelmaking process of atmospheric corrosion resistant steel HRB400aE converter |
| CN115595395B (en) * | 2022-09-08 | 2023-11-07 | 福建三宝钢铁有限公司 | Atmospheric corrosion resistant steel HRB400aE converter steelmaking process |
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Application publication date: 20120328 |