人是在实践中认识事物发展的规律性的。“高炉必须采用精料”就是两千多年来中外炼铁人员反复认识的共同结论。它是一条带根本性的经验,是炼铁生产技术中一切工作的基础。但是,要把这条方针应用到生产实践中去并不是一件轻而易举的事,方法大家都是知道的,就是不大愿意在这上边下大工夫,所以迄今,它仍然是我们炼铁的一个重要课题,属于“非不能也,是不为也”的一类。 People recognize the regularity of things in practice. “The blast furnace must use fine material” is the common conclusion repeatedly made by Chinese and foreign iron and steel workers over two thousand years. It is a fundamental experience and is the foundation of everything in the ironmaking production technology. However, it is not easy to apply this principle to production practice. Everyone knows that this method is not willing to make any efforts on this issue, so far, it is still one of our iron making An important issue belongs to the category of “can not, neither is”.