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本文对高炉冶炼钒钛矿时炉内泡沫渣产生的原因及配加钒钛富块矿的消泡原理进行了讨论。指出不可忽视炉内泡沫渣的存在及其影响。炉内泡沫渣中气泡的形成及释放过程如下:铁珠穿过渣层及在渣铁界面都会发生渣铁间的交互反应而放出CO气体,它们首先在渣铁界面和铁珠周围形成细小气泡。此外,渣焦间的反应也会产生小气泡。这些气泡合并长大,上升聚合成渣液中的大气泡,最后突破渣面而逸出。配加钒钛富块矿,由于抑制了钛的过还原,因而能够减轻炉内、炉外泡沫渣的生成。
This paper discusses the reasons for the foaming slag in the furnace when blast furnace smelting vanadite and the defoaming principle with vanadium-titanium rich lump ore. Pointed out that the presence of foam slag furnace and its impact can not be ignored. Bubbles in the furnace slag bubble formation and release process is as follows: Iron beads through the slag layer and the interface at the slag iron slag interaction occurs and release CO gas, they first in the iron and iron slag interface around the formation of small bubbles . In addition, the reaction between slag coke will also produce small bubbles. These bubbles merged and grew up, rising into large bubbles in the slurry, finally breaking through the slag surface and escaping. Equipped with vanadium-titanium-rich lump ore, due to inhibition of the titanium over-reduction, which can reduce the furnace, the furnace outside the formation of foam residue.