我厂是铁合金行业生产微碳铬铁的专业厂,有3000kVA 敞口倾动式电炉4座。冶炼过程中散发出大量的含尘烟气,劳动环境条件差,是全厂的主要污染源。过去,在新建303~#、304~#炉上安装了除尘系统,取得了一定的成效。但由于种种原因,没有达到预期效果。我们吸取了过去的经验和教训,于1988年在301~#、302~#炉上安装了二级烟气净化系统,改脉冲布袋除尘器 I plant is ferroalloy industry production of carbon-carbon ferroalloy professional factory, there are 3000kVA open tilting electric furnace 4. Smelting process emits a lot of dusty flue gas, poor working conditions, the whole plant is the main source of pollution. In the past, in the new 303 ~ #, 304 ~ # furnace installed on the dust removal system, and achieved some success. However, due to various reasons, did not achieve the desired results. We learned from the past experience and lessons learned, in 1988 in 301 ~ #, 302 ~ # furnace installed on the second-stage flue gas purification system, change pulse bag filter