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一、 前言 电弧炉是冶炼设备中噪声最响的一种,在炉旁最大的声压级可达110～120分贝(A)。这严重地影响工人的身心健康和操作,也危及工厂近邻的居民点。本文拟介绍电弧炉噪声的测量及其特性,以供参考。 二、电弧炉噪声 电弧炉有一形状和茶杯相似的钢壳容器,炉顶设有三根电极,成三角形排列,并可上下移动。电极供给50赫三相电流,约为200伏及10～50千安。炉料系在炉顶及电极吊开后投入炉内。熔融的钢水经溜槽流出,炉
I. INTRODUCTION Electric arc furnace is one of the loudest noise in smelting equipment. Its maximum sound pressure level is up to 110 ~ 120 dB (A). This seriously affects the physical, mental and physical health of workers and their operation and endangers the settlements of the factory’s neighbors. This article describes the measurement of arc furnace noise and its characteristics for reference. Second, the electric arc furnace noise EAF has a shape and cup similar steel container, the roof has three electrodes, arranged in a triangle, and can move up and down. Electrodes supply 50 Hz three-phase current, about 200 volts and 10 ~ 50 kA. Burden at the top of the furnace and the electrode after hanging into the furnace. Molten steel flow out of the chute, furnace