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1 原料性能及研究方法
1.1 原料性能
Table 1 Proximate and ultimate analysis of ash (air dry basis) %
灰渣 | 工业分析 | 元素分析 | ||||||||
水分 | 灰分 | 挥发分及固定碳 | C | H | O | N | S | Cl | ||
飞灰 | 2.0 | 91.5 | 6.5 | 2.55 | 0.03 | 2.35 | 0.10 | 0.82 | 0.80 | |
底渣 | 5.0 | 85.4 | 9.6 | 5.70 | 0.37 | 2.95 | 0.06 | 0.65 | 0.40 |
Table 2 Major composition of ash in bottom slag and fly ash %
灰渣 | NaCl | Na2SO4 | CaO | CaSO4 | SiO2 | Fe2O3 | Al2O3 | MgO | TiO2 | As2O3 | PbO | CuO | ZnO | NiO | Cr2O3 |
飞灰 | 62.55 | 18.63 | 0 | 2.61 | 13.37 | 0.62 | 0.34 | 0 | 0.04 | 0.73 | 0.63 | 0.15 | 0.24 | 0.06 | 0.02 |
底渣 | 3.23 | 13.54 | 28.44 | 2.27 | 18.8 2 | 6.05 | 16.07 | 4.70 | 5.22 | 0 | 0.01 | 0.82 | 0 | 0.45 | 0.39 |
1.2 研究方法
2 结果分析
2.1 As的热力学平衡分析
Fig. 1 Equilibrium distribution of As in reducing atmosphere

Fig. 2 Equilibrium distribution of As in oxidizing atmosphere

Fig. 3 Effect of CaCl2 on the migration characteristics of As

2.2 Pb的热力学平衡分析
Fig. 4 Equilibrium distribution of Pb in reducing atmosphere

Fig. 5 Equilibrium distribution of Pb in oxidizing atmosphere

Fig. 6 Effect of CaCl2 on the migration characteristics of Pb

2.3 Zn的热力学平衡分析
Fig. 7 Equilibrium distribution of Zn in reducing atmosphere

Fig. 8 Equilibrium distribution of Zn in oxidizing atmosphere

Fig. 9 Effect of CaCl2 on the migration characteristics of Zn

2.4 Cu的热力学平衡分析
Fig. 10 Equilibrium distribution of Cu in reducing atmosphere

Fig. 11 Equilibrium distribution of Cu in oxidizing atmosphere

Fig. 12 Effect of CaCl2 on the migration characteristics of Cu

2.5 Ni的热力学平衡分析
Fig. 13 Equilibrium distribution of Ni in reducing atmosphere

Fig. 14 Equilibrium distribution of Ni in oxidizing atmosphere

Fig. 15 Effect of CaCl2 on the migration characteristics of Ni

2.6 Cr的热力学平衡分析
Fig. 16 Equilibrium distribution of Cr in reducing atmosphere

Fig. 17 Equilibrium distribution of Cr in oxidizing atmosphere

Fig. 18 Effect of CaCl2 on the migration characteristics of Cr
