42 工程科学学报，第44卷.第1期 1280 (a) 1260 1240 1220 209 1200 0.7 1180 0.5 ☑A OA OB OC OD OE OF (I OA OB OC OD OE OF Iron ore powder Iron ore powder 2 1.6 (c) (d) 0864 1.0 12 0.6 8 OA OB OC OD OE OF OG OA OB OC OD OE OF OG Iron ore powder Iron ore powder 图1铁矿粉烧结基础特性.(a)同化性能：(b)连晶性能：(c)黏结相强度：(d)铁酸钙生成能力 Fig.I Basic sintering characteristics of iron ore powder:(a)assimilation performance;(b)continuous crystal performance;(c)bonding phase performance;(d)calcium ferrite generating capacity 表3铁矿粉液相流动性指数(R=3.0) 分数变化设计为10%、15%，赤铁矿的质量分数变 Table3 Liquid phase flowability index of iron ore powder(R=3.0) 化设计为35%、40%.烧结杯具体配矿方案如表4 Name of iron ore powder OA OB OC OD OE OF OG 所示 Sintering temperature 试验过程中，烧结矿成分依据生产现场实际 conditions/℃ 1280124012801240128012801240 Liquid phase flowability 控制条件而设定，Mg0质量分数控制为1.75%， 1.643.914.882.065.254.643.00 index(FI) Si02质量分数控制在5.2%~5.4%之间，碱度R控 Note:R represents binary basicity 制为1.95.烧结杯工艺参数如表5所示 表4烧结杯配矿方案（质量分数） Table 4 Ore blending scheme of the sintering cup(mass fraction) Configuration scheme of iron ore powder Limonite Hematite Sintering fuel Experimental scheme No. OA OB OC OD OE OF OG (OA+OB+OC) (OE+OF+OG) Coke powder H-1# o 3 10 o 10 45 名 4.0 H-2# 25 20 o 25 10 5 50 0 4.0 H.3# 30 20 10 20 35 4.0 H-4# 5 30 10 15 25 10 45 40 4.0 H.5# 5 35 10 15 20 o 50 35 4.0 H-6# 10 35 10 10 25 5 5 55 35 4.0 表5 烧结杯试验设备参数及工艺控制条件 Table 5 Sintering cup test equipment parameters and process control conditions Experimental equipment parameters Value Process parameters for blending and mixing granulation of the sinter Value Material thickness/mm 700 Mixing time/min 10 Sintering cup diameter/mm 325 Mass fraction of coke powder in the mixture/% 4.0 Ignition negative pressure/Pa 6000 Mass fraction ofof the returned sinter/% 30 Mixer diameter/mm 800 Mass fraction of mixture moisture/% 7-8 Ignition temperature/C 850 Granulation time/min 15分数变化设计为 10%、15%，赤铁矿的质量分数变 化设计为 35%、40%. 烧结杯具体配矿方案如表 4 所示. 试验过程中，烧结矿成分依据生产现场实际 控制条件而设定 ， MgO 质量分数控制 为 1.75%， SiO2 质量分数控制在 5.2%～5.4% 之间，碱度 R 控 制为 1.95. 烧结杯工艺参数如表 5 所示. 表 3    铁矿粉液相流动性指数（R=3.0） Table 3    Liquid phase flowability index of iron ore powder （R = 3.0） Name of iron ore powder OA OB OC OD OE OF OG Sintering temperature conditions/ ℃ 1280 1240 1280 1240 1280 1280 1240 Liquid phase flowability index (FI) 1.64 3.91 4.88 2.06 5.25 4.64 3.00 Note: R represents binary basicity. 表 4 烧结杯配矿方案（质量分数） Table 4  Ore blending scheme of the sintering cup（mass fraction） % Experimental scheme No. Configuration scheme of iron ore powder Limonite Hematite Sintering fuel OA OB OC OD OE OF OG (OA+OB+OC) (OE+OF+OG) Coke powder H-1# 10 25 10 15 20 10 10 45 40 4.0 H-2# 5 25 20 10 25 10 5 50 40 4.0 H-3# 5 30 20 10 20 5 10 55 35 4.0 H-4# 5 30 10 15 25 10 5 45 40 4.0 H-5# 5 35 10 15 20 5 10 50 35 4.0 H-6# 10 35 10 10 25 5 5 55 35 4.0 表 5 烧结杯试验设备参数及工艺控制条件 Table 5 Sintering cup test equipment parameters and process control conditions Experimental equipment parameters Value Process parameters for blending and mixing granulation of the sinter Value Material thickness/mm 700 Mixing time/min 10 Sintering cup diameter/mm 325 Mass fraction of coke powder in the mixture/% 4.0 Ignition negative pressure/Pa 6000 Mass fraction of of the returned sinter/% 30 Mixer diameter/mm 800 Mass fraction of mixture moisture/% 7−8 Ignition temperature/℃ 850 Granulation time/min 15 OA OB OC OD OE OF OG 1180 1200 1220 1240 1260 1280 Minimum assimilation temperature/ ℃ (a) 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 Continuous crystal strength/kN (b) 0.6 0.8 1.0 1.2 1.4 1.6 Iron ore powder OA OB OC OD OE OF OG Iron ore powder OA OB OC OD OE OF OG Iron ore powder OA OB OC OD OE OF OG Iron ore powder Bonding phase strength/kN (c) 8 10 12 14 16 18 20 22 24 Calcium ferrite content (volume fraction)/ % (d) 图 1    铁矿粉烧结基础特性. （a）同化性能；（b）连晶性能；（c）黏结相强度；（d）铁酸钙生成能力 Fig.1     Basic  sintering  characteristics  of  iron  ore  powder:  (a)  assimilation  performance;  (b)  continuous  crystal  performance;  (c)  bonding  phase performance; (d) calcium ferrite generating capacity · 42 · 工程科学学报，第 44 卷，第 1 期