我厂两台9000千伏安硅铁电炉,自1977年起,已三次采用新工艺开炉,效果良好。新工艺的具体作法是:一、用Φ18～20毫米的元钢分别在三根电极外围焊成比电极直径大500～600毫米、高2.2米的铁篱笆,元钢间隙50～60毫米;电极坐在200毫米高的耐火砖上,炉底铺约50毫米厚的碎焦,在篱笆内加木刨花和木材,浇上废油点火后,加50～100毫米的大块焦炭至篱笆高的1/2,随木材的燃烧,要慢慢补加焦炭,至第三天,焦炭要加满整个篱 I plant two 9000 KVA ferrosilicon furnace, since 1977, has been using the new technology three open furnace, the effect is good. The specific practices of the new process are: First, the use of Φ18 ~ 20 mm of steel were welded on the outer periphery of the three electrodes into the electrode than the electrode diameter of 500 to 600 mm, 2.2 meters high iron fence, the gap between 50-60 mm yuan; sit On a 200 mm high refractory brick, lay the furnace bottom about 50 mm thick with scorch, add wood shavings and wood to the fence, pour 50-100 mm of coke into the shingle 1 / 2, with the burning of wood, slowly add coke, the third day, coke to fill the entire fence