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一、前言国内外对高炉喷吹重油(或焦油等)的雾化进行了许多工作:采用机械雾化和介质雾化。前者主要改进喷枪结构和油压等,后者采用压缩空气和蒸汽等作为雾化剂,都收到了一些效果,但也都没有得到根本解决。对有供氧条件的高炉,用氧来直接雾化油是比较理想的。它既是雾化剂,又是助燃剂,同时又不失去富氧本身作用。此外,一般富氧鼓风是把压力高的(6～8公斤/厘米~2)氧气引进冷风管道,这时氧气的高压能量就损失了,并随着不可避免的漏风损失,一部分氧也损失了。如果将部分或全部高压氧气不通过冷风管,而直接送入风口喷枪雾化油.就可较好地利用这部分氧的高压能量,此时
I. Introduction At home and abroad, blast furnace heavy oil (or tar, etc.) atomization carried out a lot of work: the use of mechanical atomization and medium atomization. The former mainly to improve the spray gun structure and hydraulic pressure, the latter with compressed air and steam as the atomizer, have received some results, but also have not been fundamentally resolved. For the blast furnace with oxygen supply, direct atomization of oil with oxygen is ideal. It is both an aerosolizing agent and an oxidizer, without losing the effect of oxygen enrichment itself. In addition, oxygen-rich blast is generally the introduction of high pressure (6 ~ 8 kg / cm ~ 2) oxygen into the cold air duct, when the high-pressure energy of oxygen is lost, and part of the oxygen is also lost with the inevitable loss of air leakage It’s If some or all of the high-pressure oxygen does not pass through the cold duct, it is fed directly to the atomizing oil of the tuyere to make good use of the high-pressure energy of this part of the oxygen,