Raw materials requirement for tunnel kiln DRI_DRI Standards_直接还原网_直接还原铁_海绵铁_氢冶金_气基竖炉

作者：1 发布时间：2010-04-03 文字大小：【大】【中】【小】

raw materials requirement for tunnel kiln DRI
Concentrated iron	TFe	SiO2+Al2O3	CaO	MgO	matrix
	≥66.5%	≤5.5%	≤2.5%	≤1.5%	≤8%
	S	P	wet
	≤0.06%	≤0.06%	≤10%
anthracite	fixed carbon	volatile	ash	S	ash melting temperature
	≥60%	≤10%	＜25%	＜1.0%	≥1250℃
	水分	limestone	CaO
	＜15%	limestone	≥50%
coal for gas stove	weak sticking	size	30-50mm	powder	≤5%