碱性反射爐爐底的燒結 目前有色金屬冶煉厂所使用的碱性反射爐底的襯砌方法,一般有以下兩种: 一、用镁磚砌成倒拱。此法的缺点是:(一)镁磚价格昂貴;(二)容易爆裂断头,造成爐底不平;(三)不能进行热修理。如果一旦翻拱,只有停爐、冷却后,方能进行修理,因而給車間节奏性的生产,帶來严重的威脅,經常造成長时间的停止生产。二、用镁砂直接进行高溫熔接。由于镁砂价格較镁磚便宜,并可随时进行热修补,所以一般使用較广。但是过去 Basic Refractory Furnace Bottom Sintering At present, non-ferrous metal smelting plants are mainly used for the lining method of the basic reflecting furnace bottom, generally in the following two ways: First, inverted magnesium arch brick. The disadvantages of this method are: (i) Magnesia brick is expensive; (ii) it is easy to burst and break, resulting in uneven bottom; (c) It can not be repaired by heat. Once the arch has been turned over, only the furnace shutdown and cooling can be carried out before the repair can be carried out, which poses a serious threat to the rhythmic production of the workshop and often results in a prolonged stoppage of production. Second, direct high-temperature welding with magnesia. As magnesia prices cheaper than magnesia, and can be hot repaired at any time, it is generally more widely used. But in the past