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DETECTION OF COMBUSTION ZONE BEFORE BLAST TUYERE OF BLAST FURNACE
DETECTION OF COMBUSTION ZONE BEFORE BLAST TUYERE OF BLAST FURNACE
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机译：高炉高炉出风口前燃烧区的检测
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摘要
PURPOSE:To detect exactly the number of the coke grains and unreduced iron ore in a raceway and to stabilize the condition of a blas furnace based on the knowledge on the condition of the combustion zone in the furnace by detecting the brightness in the raceway in a blast furnace operation by a sensor. CONSTITUTION:A peep window 3 is formed to the tuyere of the blast furnace 1 and the inside of the in-furnace raceway 11 before the tuyere is monitored by the sensor 5. The brightness sensor of which the visual field 8 is about =15mm.phi and the reaction speed with the change of light is higher than 1ms is used in this case. The change of the brightness in the raceway according to the quantity of the coke particles or the particles 10 of th unreduced ore powder, etc. is measured by the sensor 4 and is inputted through an amplifier 5 to a particle number counter 6 which counts the number of the instantaneous decrease in the output signal in specified time out of said signal to detect exactly the number of the coke or other particles 10. The result thereof is displayed on a display device 7. The condition of the blast furnace combustion zone is known by such method and the condition of the blast furnace is thus stabilized.
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