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杭钢2号高炉容积为255m~3,炉缸直径4.2m,风口10个,炉喉直径3.5m,用马基式布料器,风机能力750m~3/min。该高炉自1989年下半年起将风速由95m/s提高到110m/s,同时将矿石批重由原来的5.O～6.Ot/批增大到7.5～8.0t/批,在原燃料条件劣化的情况下,保持了较好的顺行水平,获得了增产15～19%,ηco提高近3%的良好经济效果。1.风速与矿批的调整该高炉风速与矿批的调整大致可划分为三个阶段。第一阶段风口面积为0.0866m~2(风口直径φ105mm),矿批5.0～5.5t。
Hangzhou Iron and Steel No. 2 blast furnace capacity of 255m ~ 3, hearth diameter 4.2m, tuyere 10, throat diameter 3.5m, with horse-based distributor, the fan capacity of 750m ~ 3 / min. Since the second half of 1989, the blast furnace has increased the wind speed from 95m / s to 110m / s, and increased the batch weight from the original 5.O ~ 6.Ot / batch to 7.5 ~ 8.0t / batch. Under the condition of raw fuel In the case of deteriorating, it maintained a good level of antegrade and gained a good economic result of 15-19% increase in yield and 3% increase in ηco. 1. The adjustment of wind speed and mine batch The blast furnace wind speed and the adjustment of mine batch can be roughly divided into three stages. The first stage of the tuyere area of 0.0866m ~ 2 (tuyere diameter φ105mm), ore batch 5.0 ~ 5.5t.