目前国内广泛采用部頒标准型鎂磚砌筑平炉炉体,它的优点是:制磚工艺方便,成型率高;烧成、运輸和使用均很方便;外形尺寸良好。但是这种磚砌造速度較慢,砌体的縫隙較多,因而使平炉的热損失增加,妨碍炉体寿命进一步提高。鞍山鋼铁公司大石桥鎂矿試制了两种大型鎂磚,尺寸为460×150×65毫米和300×150×65毫米。这两种磚的理化指标及外形尺寸均达到了部頒規定的标准鎂磚的要 At present, the ministerial standard magnesia brick masonry furnace body is widely used in China. Its advantages are: convenient brick making process and high molding rate; convenient for firing, transportation and use; good shape and size. However, this brick masonry slower, more cracks in the masonry, so flat furnace heat loss increases, hinder the further increase in furnace life. Anshan Iron and Steel Company Dashiqiao magnesium mine trial of two large-scale magnesia brick, the size of 460 × 150 × 65 mm and 300 × 150 × 65 mm. The two kinds of brick physical and chemical indicators and dimensions have reached the ministerial standard magnesium brick to