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攀钢冶炼钒钛磁铁矿高炉喷煤技术的发展经过了较长的历程。未燃煤粉进入炉渣后,将炉渣中的TiO_2还原,生成Ti(C,N),使炉渣变粘,会影响高炉冶炼行程。为了能突破这一限制,经反复试验和研究,历经煤比为40kg/t、60kg/t和90kg/t的高炉工业试验,煤比逐渐提高。1999年在原料入炉TFe为47.38,渣比高达717kg/t的条件下,煤比达到113.81kg/t,2000年3月份煤比又进一步超过140kg/t。
Pangang smelting vanadium titanium magnetite blast furnace coal injection technology after a long history. Unburned coal powder into the slag, the slag in the reduction of TiO_2, generate Ti (C, N), the slag becomes sticky, will affect the blast furnace smelting process. In order to overcome this limitation, after repeated tests and studies, the coal ratio gradually increased after blast furnace industrial tests with coal ratios of 40 kg / t, 60 kg / t and 90 kg / t. In 1999, when the feedstock input TFe was 47.38 and the slag ratio was as high as 717kg / t, the coal ratio reached 113.81kg / t. In March 2000, the coal ratio further exceeded 140kg / t.