硅热法炼镁的节能和清洁能源解决方案

针对硅热法炼镁能耗高和燃煤污染的最新研究结果,提出了一套经实践检验、便于推广的产业化方案。热化学分析和试验证明,镁还原工序中温度能否达标对保证反应速度和提高产率尤为重要,为此设计的燃气还原炉是一种环保、节能、高效炉型。回收放空的焦炉煤气作为燃气还原炉燃料,并使炼镁、焦化、硅铁冶炼形成产业链联产互补的创新方案,有望加速皮江法炼镁工艺和装备的技术进步,实现节能和清洁化生产。

A Clean and Energy-saving Production Strategy for Silicon-thermal Reductive Method in Magnesium Metallurgy Industry

A feasible clean and efficient solution for improving traditional techniques in magnesium metallurgy is introduced, such as high energy consumption and serious pollution from coal's firing. Based on thermo-chemistry experiments analysis, a type of gas-fired reductive furnace is proposed. Making using of coke gas from coke furnace, which is conventionally released to the ambient environment in traditional route, integrates magnesium making, coking and ferrosilicon metallurgy into an interrelated entity. This solution is being gradually extended, and its validity has been confirmed by the demo plants in Ningxia and Shanxi province.