WO2019125088A1 - Appareil de surveillance d'état de soufflage d'air de fonte - Google Patents

Appareil de surveillance d'état de soufflage d'air de fonte Download PDF

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Publication number
WO2019125088A1
WO2019125088A1 PCT/KR2018/016547 KR2018016547W WO2019125088A1 WO 2019125088 A1 WO2019125088 A1 WO 2019125088A1 KR 2018016547 W KR2018016547 W KR 2018016547W WO 2019125088 A1 WO2019125088 A1 WO 2019125088A1
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WO
WIPO (PCT)
Prior art keywords
image
charcoal
signal processing
measured
sensor unit
Prior art date
Application number
PCT/KR2018/016547
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English (en)
Korean (ko)
Inventor
황원호
최상우
박지성
배호문
Original Assignee
주식회사 포스코
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Publication of WO2019125088A1 publication Critical patent/WO2019125088A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/14—Discharging devices, e.g. for slag
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/0014—Devices for monitoring temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/02—Observation or illuminating devices

Definitions

  • the present invention relates to a leaning condition monitoring apparatus for monitoring a leaning condition of a brick exit.
  • the aesthetic means the phenomenon that the filling gas generated by the reaction of the hot air introduced into the blast furnace and the coke in the furnace through the tuyere with the melted material is discharged to the outlet port as the level of the melted material decreases at the end of the melted material in the blast furnace.
  • the conventional afore-mentioned predictive method discharges charcoal and slag through a piercing operation through an outlet through an iron bar and a bit during an opening work, and since the operator determines the occurrence time of the anorem at the time of completion of the exit, There is a problem.
  • a charter condition monitoring apparatus capable of monitoring a chartered state of a chartered ship leaving the blast furnace in real time to determine a situation in the furnace.
  • an apparatus for monitoring a leaning condition of a leaning vessel comprising: a sensor unit for measuring a temperature and an image of a leaser line at an exit; A signal processing unit for signal processing an image to measure an auditory ailment of the outgoing charter line, and a control unit for controlling the position of the sensor unit according to the position of the charcoal measured by the signal processing unit.
  • FIG. 1 is a schematic configuration diagram of an apparatus for monitoring a leaning activity state according to an embodiment of the present invention.
  • FIG. 2 is a conceptual diagram of an azimuth determination according to a temperature change of a charter state monitoring apparatus according to an embodiment of the present invention.
  • FIG. 3 to FIG. 7 are conceptual diagrams showing an anomaly determination according to the image analysis of the apparatus for monitoring the state of the hot springs of the present invention.
  • FIG. 1 is a schematic configuration diagram of an apparatus for monitoring a leaning activity state according to an embodiment of the present invention.
  • an apparatus 100 for monitoring a leaning activity state may include a sensor unit 110, a signal processing unit 120, a controller 130, and a display unit 140.
  • the sensor unit 110 can measure the temperature and the image of the molten iron at the exit port.
  • the sensor unit 110 may include a thermometer 111 for measuring a temperature change of the molten iron at the exit and a high speed camera 112 for measuring an image of molten iron at the exit.
  • the signal processing unit 112 can process the temperature and the image of the hot wire measured by the sensor unit 110 to measure the audibility of the hot wire.
  • the result of the arousal determination can be output to the outside via the display unit 140.
  • the control unit 130 controls the position of the thermometer 111 and the high speed camera 112 of the sensor unit 110 according to the position of the charcoal measured by the signal processing unit 120 to determine the optimum measurement position of the charcoal Tracking can be performed.
  • FIG. 2 is a conceptual diagram of an azimuth determination according to a temperature change of a charter state monitoring apparatus according to an embodiment of the present invention.
  • the signal processing unit 120 of the charter condition monitoring apparatus 100 includes a signal processor 120 for monitoring the charac- teristic of the charcoal measured by the thermometer 111 of the sensor unit 110, It is possible to judge the anomaly based on the temperature change such as the periodic temperature variation and the temperature distribution.
  • Fig. 2 (a) is a temperature graph of the chartered line to be taken out, and Figs. 2 (b), 2 (c) and 2 (d) respectively show an image at the beginning of the exit, an image at the middle of the exit and an image at the end of the exit.
  • FIG. 3 to FIG. 7 are conceptual diagrams showing an anomaly determination according to the image analysis of the apparatus for monitoring the state of the hot springs of the present invention.
  • the signal processing unit 120 of the charter condition monitoring apparatus 100 includes a charger 120, It is possible to judge the saturation of the charcoal based on the image.
  • the signal processing unit 120 sets an area where a hot line extends from the area of the normal exit of the hot line image measured by the high-speed camera 112 of the sensor unit 110, , It is possible to judge the saturation of the charcoal line according to the ratio between the detected charcoal area and the area where the charcoal line is set.
  • an area where a hot wire is spread is set on the basis of a normal exit area, It is possible to judge the saturation of the charcoal according to the ratio between the detected charcoal area and the area where the charcoal is spread. Considering that the gas generated inside the blast furnace is ejected along with the outlet during the outage, the area where the hotline is spread can be set to the upper side of the image based on the normal exit.
  • the signal processing unit 120 may calculate the average and standard deviation of the height of the exit image as in the area A, and judge that the deviation is an avalanche if the deviation is equal to or greater than a preset reference value.
  • the mean and standard deviation of the height may be as shown in Equation 2 below.
  • the signal processing unit 120 may process the image of the measured charcoal to adjust the saturation measurement area to a shape that takes into consideration the boundary line of the polygon or the charcoal.
  • the signal processing unit 120 processes the image of the hotline measured by the sensor unit 110 to obtain the boundary value of the image of the hotline and the background, and obtains the differential value of the obtained boundary value So that it is possible to determine an aural value. It is desirable to calculate the derivative value of the boundary portion value of the upper end of the exit line, considering that the gas generated inside the blast furnace is ejected along with the exit line during the exit.
  • FIG. 5 (a) is an image in which no anomaly occurs
  • FIG. 5 (b) is an image in which an anomaly is generated
  • FIG. 5 (c) is a graph in which an anomaly occurs in the measured image .
  • the signal processing unit 120 processes the image of the hotline measured by the sensor unit 110 to obtain the boundary value of the image of the hotline and the background, And the standard deviation to determine the anatomy. It is desirable to calculate the mean, variance, and standard deviation of the boundary value of the upper end of the exit, taking into account the situation where the gas generated inside the blast furnace is ejected along with the exit during the exit.
  • FIG. 6 (a) is an image of a charcoal
  • FIG. 6 (b) is a graph showing an interval in which an anomaly occurs in the measured image.
  • Equation 1 The calculation of the mean, variance, and standard deviation of the boundary portion values at the upper end of the outgoing line may be the same as in Equation 1 described above.
  • the signal processing unit 120 processes the image of the hotline measured by the sensor unit 110 to obtain the boundary value of the image of the hotline and the background,
  • the averages can be determined by calculating the average.
  • FIG. 7 (a) is an image of a charcoal
  • FIG. 7 (b) is a graph showing an interval in which a sound is generated in the measured image.
  • Equation 3 The calculation of the mean, variance, and standard deviation of the boundary portion values at the upper end of the exit can be as shown in Equation 3 below.
  • the above-described anomaly determination method of Figs. 5 to 7 can detect the boundary of the charcoal irrespective of the position shift of the exit port.
  • At least one determination method or a plurality of determination methods may be selected depending on the circumstances, such as the above-described determination of the anomaly according to the temperature change and the determination of the anomaly according to the image of Figs. 3 to 7, May be selected.
  • monitoring not only the temperature of the molten iron at the blast furnace outlet but also the exhausted condition of the outlet charcoal can be used as an important factor .
  • the beginning and end of the departure are related to the gas in the furnace.
  • the ending of the end of the furnace is an important factor in judging the end of the opening (closing time) It is also an important criterion for the determination of the temperature coherence of the crucible, which is an important factor, and can be utilized for controlling the furnace heat control.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Radiation Pyrometers (AREA)
  • Blast Furnaces (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

La présente invention concerne un appareil de surveillance d'un état de soufflage d'air de fonte, permettant de surveiller un état de soufflage d'air de fonte prélevée à partir d'un haut-fourneau en temps réel pour déterminer une situation dans le haut-fourneau. Un appareil pour surveiller un état de soufflage d'air de fonte, selon un mode de réalisation de la présente invention, comprend : une partie de capteur pour mesurer une température et une image de fonte dans un trou de tirage ; une partie de traitement de signal pour le traitement de signal de la température et de l'image de la fonte mesurées par la partie de capteur pour mesurer le soufflage d'air de la fonte prélevée ; et une partie de commande pour commander la position de la partie de capteur en fonction de la position de la fonte mesurée par la partie de traitement de signal.
PCT/KR2018/016547 2017-12-22 2018-12-21 Appareil de surveillance d'état de soufflage d'air de fonte WO2019125088A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020170178479A KR102065222B1 (ko) 2017-12-22 2017-12-22 용선 공취 상태 모니터링 장치
KR10-2017-0178479 2017-12-22

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WO2019125088A1 true WO2019125088A1 (fr) 2019-06-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115612765A (zh) * 2022-10-14 2023-01-17 合肥视展光电科技有限公司 一种高炉开铁口状态实时检测控制方法及系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07268425A (ja) * 1994-03-30 1995-10-17 Nippon Steel Corp 高炉大樋熱間補修装置
KR19990042422A (ko) * 1997-11-26 1999-06-15 이구택 용광로의 공취시점 감지장치 및 그 방법
KR100212025B1 (ko) * 1995-10-23 1999-08-02 이구택 용광로 조업중 공취발생 예측방법
KR20120044751A (ko) * 2010-10-28 2012-05-08 재단법인 포항산업과학연구원 철강공업로 조업 모니터링 방법 및 장치
KR101412550B1 (ko) * 2012-07-31 2014-06-26 현대제철 주식회사 슬래그 배재 제어방법

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5692109A (en) 1979-12-27 1981-07-25 Sumitomo Electric Ind Ltd Manufacture of alpha-type silicon nitride powder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07268425A (ja) * 1994-03-30 1995-10-17 Nippon Steel Corp 高炉大樋熱間補修装置
KR100212025B1 (ko) * 1995-10-23 1999-08-02 이구택 용광로 조업중 공취발생 예측방법
KR19990042422A (ko) * 1997-11-26 1999-06-15 이구택 용광로의 공취시점 감지장치 및 그 방법
KR20120044751A (ko) * 2010-10-28 2012-05-08 재단법인 포항산업과학연구원 철강공업로 조업 모니터링 방법 및 장치
KR101412550B1 (ko) * 2012-07-31 2014-06-26 현대제철 주식회사 슬래그 배재 제어방법

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115612765A (zh) * 2022-10-14 2023-01-17 合肥视展光电科技有限公司 一种高炉开铁口状态实时检测控制方法及系统

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KR20190076573A (ko) 2019-07-02
KR102065222B1 (ko) 2020-01-10

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