我厂自1976年诞生了无炉衬高炉的雏形,1971年10月正式建成一座100m~3无炉衬高炉并投产以来,生产实践证明,无炉衬锰铁高炉确实是多快好省地冶炼锰铁的新途径之一。它具有保持固定的内型、延长高炉寿命、保证炉况顺行、大幅度地增产、投资少、建设快等优点。当然、它同任何其它新生事物一样、在成长过程中必然会存在一些缺陷:如钢壳有变形、钢架易于腐蚀等。我们遵照伟大领袖毛主席“一个正确的认识,往往需要经过由物质到精神,由精神到物质,即由实践到认识,由认识到实践 Since our factory was born in 1976, the prototype of a non-lining blast furnace was established. Since the construction of a 100m-3 non-lining blast furnace and put into operation in October 1971, the production practice has proved that the non-lining ferromanganese blast furnace is indeed more efficient and less economically ferromagnetic One of the new ways. It has to maintain a fixed shape, to extend the life of the blast furnace to ensure that furnace conditions go forward, a substantial increase in production, less investment, faster construction and so on. Of course, like any other new things, there must be some defects in the process of growth: such as deformation of the steel shell and easy corrosion of the steel frame. We follow Chairman Mao, the great leader. "A correct understanding often requires going from materialism to spirituality and from spirituality to materialism, that is, from practice to understanding and from realization of practice