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1.研究方法为了分析烧结饼的结构特点及烧结机上冷却机理,寻找提高烧结矿质量的措施,从首钢二烧车间3号烧结机上取下一台车烧结饼,将其垂直切开,并沿垂直台车前进方向左、中、右三个位置,分别取下三块横截面积为400×400mm的完整烧结饼,灌入环氧树脂,固结后,用切片机将烧结饼纵横切开,磨平,抛光。观察裂纹、气孔及物相结构,用透明方格尺统计气孔率。 2.烧结饼的结构分区及其特征根据烧结饼的宏观和微观结构将其分为散料区、欠熔区、大孔区、致密区、亚球区、夹生料
1. Research Methods In order to analyze the structural characteristics of the sintered cake and the cooling mechanism of the sintering machine, and to find measures to improve the quality of the sintered ore, a sintering cake was taken from the No. 3 sintering machine of Shougang Second Burning Plant, cut vertically and cut along Vertical trolley forward three directions left, center and right, respectively, remove the three cross-sectional area of 400 × 400mm complete sintered cake, poured into epoxy resin, consolidation, with a slicer vertical and horizontal cut open , Polished, polished. Observation of cracks, pores and phase structure, with a clear grid scale porosity statistics. 2. The structural division and characteristics of the sinter cake According to the macroscopic and microstructure of the sinter cake, it is divided into bulk material area, underfill area, macropore area, dense area, sub-area,