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最近几年,我国铸工创造性地在冲天炉上采用了小风口,把风口比(风口总面积对于炉身横截面积之比,以下都简称为风口比)由传统的25%左右缩小到3%左右,虽然在理论上并没有肯定究竟这是一种带有局限性的经验,还是一个值得推广的新方向,但事实上这种经验己经在越来越多的铸工车间和转炉炼钢车间普遍推广。我们这里也不例外地在一部分冲天炉上改用了小风口,同样肯定了小风口在节约焦炭和减少炉壁损耗方面所起的作用〔19〕。但是在进行比较研究时,因牵连的因
In recent years, China’s castors creatively adopted a small air outlet in the cupola, the tuyere ratio (the total area of the tuyere for the shaft cross-sectional area ratio, hereinafter referred to as the tuyere ratio) reduced from the traditional 25% to 3% Although it is not theoretically possible to determine whether this is a limited experience or a new direction worthy of promotion, the fact is that experience has been increasing in more and more of the foundry and converter steelmaking workshops Universal promotion. We are here not without exception in the cupola switch to a small outlet, also affirmed the role of small outlet in saving coke and reduce furnace wall loss 〔19〕. However, in the comparative study, due to the reasons involved