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冷固结球团矿以铁精粉为原料,加入少量粘结剂均匀混碾,经过挤压成型后低温烘烤固结而成。高炉冶炼试验表明,冷球具有强度高、粒度均匀、软化区间窄、低温还原粉化率比较低等冶金性能。在本次试验中,高炉碱金属负荷为6.238kg/t,其中由冷球带入的碱金属负荷仅有1kg/t～2kg/t。高炉的排碱能力达到92.78％。在15％冷球与85％烧结矿搭配的条件下,高炉产量提高20％,焦比降低3％,经济效益十分显著。对中小高炉而言,冷球是一种很有发展前途的炉料。
Cold consolidation pellets to iron powder as raw material, adding a small amount of binder evenly mixed grind, after low temperature baking after consolidation formed. The blast furnace smelting test shows that the cold ball has the characteristics of high strength, uniform grain size, narrow softening range and relatively low metallurgical properties such as low temperature reduction and pulverization rate. In this test, the blast furnace alkali metal load 6.238kg / t, which brought by the cold ball of alkali metal load of only 1kg / t ~ 2kg / t. Blast furnace exhaust capacity reached 92.78%. In the condition of 15% cold ball and 85% sinter, the output of the blast furnace is increased by 20% and the coke ratio is reduced by 3%, the economic benefit is very significant. For the small blast furnace, the cold ball is a very promising charge.