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| Experimental Study on Optimization of Sintering Technology |
| LIU Zhulin1,CHEN Zilin2,TANG Leyun2 |
| 1. Metallurgical Department of Hunan Metallurgical Professional Technology College, Zhuzhou 412000, Hunan, China;2. Sintering Plant of Xiangtan Iron and Steel Group Co., Ltd., Xiangtan 411101, Hunan, China |
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Abstract In spite of that charge quality for sintering was improved through using low silicon sinter, but the strength, size and metallurgical properties of sinter were deteriorated. It was found that serpentine addition makes liquid phase and strength increased, return fine and solid fuel consumption reduced and reductionsoftening behavior of sinter improved, in spite of small increase of SiO2 in sinter. Due to high Al2O3 in blast furnace slag, and the influence of MgO in sinter on it’s sinter strength was studied, the industrial experiment showed that replacement of dolomite with lightly fired dolomite partly has small effect on productivity, but the drum strength is increased, solid fuel consumption is reduced, the productivity of BF has increased with lower coke rate and the fluidity of slag is higher. Spraying with 3% CaCl2 reagent is very effective for RDI（reduction degradation index）.
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Received: 01 January 1900
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2006, Vol. 41 