Technology
Conference
Raw materials requirement for tunnel kiln DRI
作者：1 发布时间：2010-04-03 文字大小：【大】【中】【小】
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raw materials requirement for tunnel kiln DRI
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Concentrated iron
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TFe
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SiO2+Al2O3
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CaO
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MgO
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matrix
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≥66.5%
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≤5.5%
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≤2.5%
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≤1.5%
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≤8%
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S
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P
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wet
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≤0.06%
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≤0.06%
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≤10%
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anthracite
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fixed carbon
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volatile
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ash
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S
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ash melting temperature
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≥60%
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≤10%
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＜25%
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＜1.0%
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≥1250℃
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水分
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limestone
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CaO
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＜15%
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≥50%
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coal for gas stove
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weak sticking
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size
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30-50mm
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powder
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≤5%
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