用正交设计法优选冲天炉部分结构尺寸

Choose Structural Size of Section of Towering Furnace by Way of Design Experimental

两排大间距冲天炉具有出铁温度高、炉况稳定、铁水不易氧化和元素烧损少等特点,但是炉型的结构仍是主要影响铁水温度和质量的主要因素之一。本文介绍在保证两排大间距不变的情况下,在加强炉料管理的基础上,借助正交试验法对风口高度、炉缸直径、主风口占总风口面积和排距的大小进行优化试验,获得了较好的效果,铁水温度提高约50°～60℃左右;Si,Mn的烧损大致下降10％左右。

This paper presents optimum experimental of the tuyere altitude and the furnace vat diameter and principal tuyere make up total tuyere area and the tuyere distance on ensure large interval of two rank by way of design experimental. We are gained fine effect. The molten iron temperature are raised about 50℃～60℃. Less of silicon and Manganese come down about 10 per cent.