MOLTEN IRON TEMPERATURE CALCULATION METHOD IN BLAST FURNACE

• Main Author: GOTO KEI
• Format: Patent
• Language: English; Japanese
• Published: 06.04.2017
• Subjects: BLASTING; CHEMISTRY; COLORIMETRY; DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE; FURNACES; HEATING; KILNS; LIGHTING; MANUFACTURE OF IRON OR STEEL; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; MECHANICAL ENGINEERING; METALLURGY; METALLURGY OF IRON; OVENS; PHYSICS; RADIATION PYROMETRY; RETORTS; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR; WEAPONS

PROBLEM TO BE SOLVED: To provide a molten iron temperature calculation method in a blast furnace which can calculate the molten iron temperature in future tapping accurately by using tuyere camera image.SOLUTION: Inside of a tuyere is photographed with a camera installed outside of a furnace body of a blast furnace, the photographed image is resolved into three colors of R (red), G (green) and B (blue), brightness of a specific color is extracted, and the molten iron temperature is calculated by local regression analysis based on the extracted brightness data and blast furnace operation experience data.SELECTED DRAWING: Figure 1 【課題】羽口カメラ画像を用いて、将来の出銑時の溶銑温度を精度よく予測することができる、高炉における溶銑温度予測方法を提供することを目的とするものである。【解決手段】高炉の炉体外部に設置したカメラで羽口内部を撮影し、撮影した画像をＲ（赤）、Ｇ（緑）、Ｂ（青）の３色に分解し、特定の色の輝度を抽出し、抽出した輝度データと高炉操業実績データに基づいて、局所回帰分析して溶銑温度を予測する。【選択図】図１