马钢高炉冷却壁结垢的成因

The Cause of Scale Formation in Cooling Stave of B.F. of MAGANG

利用X射线衍射、扫描电镜（SEM）及能谱（EDS）研究了马钢高炉冷却壁水管内垢物的成份和结构．结果表明：垢主要由Fe3O3，α-FeOOH，γ－FeOOH及水中泥砂悬浮物组成；垢瘤生成的主要原因是水管内壁爱腐蚀所致．讨论了这种腐蚀机制，并据此提出了防腐阻垢的对策．

The composition and structure of scale, which was on the waterpipe wall of cooling stave of No.3 BF at Maanshan Iron & Steel Co., Ltd ., was studied by X-raypcan electron ndcroscope (SEM) and energe dispersive X-ray spectroscope (EDS). The result shows, the scale is maily composed of Fe3O4, α-FeooH, γ-FeOOH and suspending silt.The main cause of scale formation is that waterpipe wall was corroded. A discussion has been made on the corrosion mechanism, and according to this, a countermeasure for anticorrosive and prevent fomation of scale was proposed.