CN101149338A - 钢水流中熔渣检测装置 - Google Patents

钢水流中熔渣检测装置 Download PDF

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Publication number
CN101149338A
CN101149338A CNA200710138906XA CN200710138906A CN101149338A CN 101149338 A CN101149338 A CN 101149338A CN A200710138906X A CNA200710138906X A CN A200710138906XA CN 200710138906 A CN200710138906 A CN 200710138906A CN 101149338 A CN101149338 A CN 101149338A
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China
Prior art keywords
slag
image pick
molten steel
molten
steel
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CNA200710138906XA
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English (en)
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姜虹
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Tian Zhiheng
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Priority to CNA200710138906XA priority Critical patent/CN101149338A/zh
Publication of CN101149338A publication Critical patent/CN101149338A/zh
Priority to PCT/CN2008/071706 priority patent/WO2009012704A1/zh
Priority to EP08783708A priority patent/EP2177947A4/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
    • B22D2/001—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass for the slag appearance in a molten metal stream
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Continuous Casting (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Blocking Light For Cameras (AREA)
  • Radiation Pyrometers (AREA)

Abstract

一种检测钢水流中熔渣的装置，它由摄像器、计算机、监视器和控制单元组成。摄像器中的镜头和电荷耦合器件为用于可见光摄像的普通光学器件。摄像器中设有只允许红外波透过的滤光片。

Description

钢水流中熔渣检测装置
技术领域
本发明涉及炼钢连铸过程中钢水流中熔渣的检测装置。
技术背景
在炼钢连铸工艺中，钢水从一个容器转移到另一个容器的过程中会有熔渣进入钢水流中。为了控制和减少熔渣从一个容器转入到另一个容器中的量，需要对钢水流中出现的熔渣进行检测。现有的检测方法一般采用摄像法，利用钢水中的熔渣的长波发射率高于同温度钢水的发射率的原理判断钢水中熔渣的含量。专利US6129888提出用8-14μm的长波红外摄像器件，US6562285B1提出用波长小于4μm(短波红外)的电荷耦合器件(CCD)，Land InstrumentsInternational Ltd提出用工作波长为3.9μm的FTI6红外热像仪。这些技术的工作波长都处于红外范围，其缺点在于，红外摄像器件的价格均比较高，使用寿命也不够长。
发明内容
本发明的目的是提供一种价低寿长并保证熔渣与钢水图像对比度的钢水流中熔渣的检测装置。
本发明的目的是这样实现的，摄像器中的镜头及电荷耦合器件为广泛用于可见光摄像的普通光学器件。
摄像器中安装只允许红外波透过的滤光片。
尽管普通光学器件对红外波的灵敏度较低，但温度达到约1650℃的钢水和熔渣的红外发射率较高，只要利用滤光片将波长短于红外的过滤掉，应用这些器件能够获得可处理的数字图像，而且图像中熔渣与钢水的亮度比等于它们的发射率的比值，亦即对比度与应用红外摄像器件的一致。
附图说明
本发明如图1所示。
图1是用于转炉钢水流中熔渣检测的装置示意图。
具体实施方式
本发明的一个实施例如图1所示。转炉(1)绕轴(2)旋转使炉中的钢水由出钢口(3)流到大包(5)中。摄像器(6)对着钢水流(4)摄像。摄像器中的电荷耦合器件(6a)和镜头(6b)是广泛用于可见光摄像的普通光学器件，质量和使用寿命均有保证。摄像器中的滤光片(6c)只透过红外波，在本实施例中是8-14μm的红外波。该波段熔渣的红外发射率与钢水的发射率的比值最大，故本实施例所得熔渣与钢水亮度的对比度与现有长波红外技术的一致而优于现有短波红外技术的。图像信息通过电缆送给计算机(7)对图像中的像素亮度进行分级统计，给出钢水流中熔渣含量的百分比。当熔渣含量超过设定阀值时，控制单元(9)输出启动实施转炉挡渣的信号及报警信号。监视器(8)显示钢水流(4)的图像并将代表熔渣的高亮度像素着色，在本实施例中设置为蓝色。监视器(8)的屏幕右侧用图形高度显示熔渣含量的百分比。

Claims (2)

1.一种检测钢水流中熔渣的装置，它由摄像器、计算机、监视器和控制单元组成，其特征在于，摄像器中的镜头和电荷耦合器件为用于可见光摄像的普通光学器件。
2.如权利要求1所述的装置，其特征在于，摄像器中设有只允许红外波透过的滤光片。
CNA200710138906XA 2007-07-22 2007-07-22 钢水流中熔渣检测装置 Pending CN101149338A (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CNA200710138906XA CN101149338A (zh) 2007-07-22 2007-07-22 钢水流中熔渣检测装置
PCT/CN2008/071706 WO2009012704A1 (fr) 2007-07-22 2008-07-21 Dispositif de caméra vidéo permettant de détecter un laitier fondu dans un flux d'acier fondu
EP08783708A EP2177947A4 (en) 2007-07-22 2008-07-21 VIDEO CAMERA ASSEMBLY FOR DETECTING MELTED SLAG IN A FLOW OF MELTED STEEL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA200710138906XA CN101149338A (zh) 2007-07-22 2007-07-22 钢水流中熔渣检测装置

Publications (1)

Publication Number Publication Date
CN101149338A true CN101149338A (zh) 2008-03-26

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ID=39249969

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA200710138906XA Pending CN101149338A (zh) 2007-07-22 2007-07-22 钢水流中熔渣检测装置

Country Status (3)

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EP (1) EP2177947A4 (zh)
CN (1) CN101149338A (zh)
WO (1) WO2009012704A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102392098A (zh) * 2011-11-04 2012-03-28 衡阳镭目科技有限责任公司 一种炼钢炉下渣检测系统
CN102952919A (zh) * 2011-08-19 2013-03-06 天津市三特电子有限公司 钢包净空监测装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111656168A (zh) 2018-01-31 2020-09-11 3M创新有限公司 用于对制成的幅材进行检测的虚拟相机阵列
US11897977B2 (en) 2018-01-31 2024-02-13 3M Innovative Properties Company Photolabile barbiturate compounds
TWI794400B (zh) 2018-01-31 2023-03-01 美商3M新設資產公司 用於連續移動帶材的紅外光透射檢查

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6197086B1 (en) * 1997-11-13 2001-03-06 Bethlehem Steel Corporation System and method for minimizing slag carryover during the production of steel
US5968227A (en) 1997-11-13 1999-10-19 Bethlehem Steel Corporation System and method for minimizing slag carryover during the tapping of a BOF converter in the production of steel
JP3640156B2 (ja) * 2000-02-22 2005-04-20 セイコーエプソン株式会社 指示位置検出システムおよび方法、プレゼンテーションシステム並びに情報記憶媒体
US6562285B1 (en) 2000-11-15 2003-05-13 Metallurgical Sensors, Inc. Method and apparatus for detecting slag carryover
CN2652558Y (zh) * 2003-08-01 2004-11-03 张继红 钢水下渣检测装置
JP2006109120A (ja) * 2004-10-06 2006-04-20 Funai Electric Co Ltd 赤外線撮像装置
CN101149388A (zh) * 2006-09-22 2008-03-26 乐金电子(天津)电器有限公司 一种洗衣机的电机测速装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102952919A (zh) * 2011-08-19 2013-03-06 天津市三特电子有限公司 钢包净空监测装置
CN102392098A (zh) * 2011-11-04 2012-03-28 衡阳镭目科技有限责任公司 一种炼钢炉下渣检测系统

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Publication number Publication date
EP2177947A4 (en) 2013-04-03
EP2177947A1 (en) 2010-04-21
WO2009012704A1 (fr) 2009-01-29

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