[1]单智伟,王悦存,王鹏飞,等.集成化白云石悬浮煅烧引领镁产业变革[J].中国材料进展,2024,43(01):046-53.[doi:10.7502/j.issn.1674-3962.202302004]
 SHAN Zhiwei,WANG Yuecun,WANG Pengfei,et al.Integrated Suspension Calcination of Dolomite Leads Great Change in Magnesium Industry[J].MATERIALS CHINA,2024,43(01):046-53.[doi:10.7502/j.issn.1674-3962.202302004]
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集成化白云石悬浮煅烧引领镁产业变革()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
43
期数:
2024年第01期
页码:
046-53
栏目:
出版日期:
2024-01-25

文章信息/Info

Title:
Integrated Suspension Calcination of Dolomite Leads Great Change in Magnesium Industry
文章编号:
1674-3962(2024)01-0046-08
作者:
单智伟王悦存王鹏飞马英子郑芮
1. 西安交通大学 金属材料强度国家重点实验室,陕西 西安 7100492. 西安交通大学 陕西省镁基新材料工程研究中心,陕西 西安 7100493. 西安交通大学材料科学与工程学院,陕西 西安 7100494. 国科镁业科技(河南)有限公司,河南 洛阳 471000
Author(s):
SHAN Zhiwei WANG Yuecun WANG Pengfei MA Yingzi ZHENG Rui
1. State Key Laboratory for Mechanical Behavior of Materials,Xi’an Jiaotong University, Xi’an 710049, China2. Engineering Research Center for Magnesium-Based New Materials, Xi’an Jiaotong University, Xi’an 710049, China3. School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China4. Guoke Magnesium Technology(Henan) Co., Ltd., Luoyang 471000,China
关键词:
白云石悬浮煅烧集成化绿色低成本
Keywords:
dolomite suspension calcination integration environment friendly low-cost
分类号:
TF822
DOI:
10.7502/j.issn.1674-3962.202302004
文献标志码:
A
摘要:
白云石煅烧作为硅热法炼镁的第一步,不仅是主要的能耗和碳排放环节,其煅烧产物的质量更是直接影响原镁的产率与品质。目前主流的回转窑煅烧工艺存在热效率低、能耗高、污染大、单线产能低、产品质量不稳定等问题,整个煅烧工序亟待技术革新。提出了利用悬浮态煅烧替代回转窑进行白云石煅烧,并对两种工艺进行了综合对比,悬浮煅烧呈现出显著的技术、环保及经济优势:理论上节能50%以上,CO2减排超20%,生产成本较目前降低35%,而且可以有效避免“过烧”和“欠烧”,获得高质量、性能稳定性好的煅烧产物,为后续炼镁环节提供优质原料。还分析了用绿色、高效的集成化白云石悬浮煅烧技术替代目前的“分散式”煅烧的可行性及对整个镁产业可能产生的颠覆性影响。
Abstract:
The calcination of dolomite, as the first step of silicothermic reduction magnesium production, is not only the main step of energy consumption and carbon emission, but also the key influencing factor for the yield and quality of primary magnesium. At present, the mainstream calcining process of rotary kiln is faced with many problems, such as low thermal efficiency, high energy consumption, large pollution, low single-line production capacity and unstable product quality. The whole calcination process is in urgent need of technical innovation. In this paper, suspension calcining process is proposed to replace rotary kiln for dolomite calcination, and the two processes are compared comprehensively. The former shows remarkable technological, environmental and economic advantages: theoretically, the energy saving is more than 50%, the CO2 emission reduction is more than 20%, the production cost is reduced by 35% compared with the present, and can effectively avoid “overburning”and “underburning” to obtain high quality calcined products with stable performance for the subsequent magnesium smelting process. This paper also analyzes the feasibility of replacing the present “scattered” calcination with environment friendly and efficient integrated dolomite suspension calcination and its possible revolutionary influence on the whole magnesium industry.

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备注/Memo

备注/Memo:
收稿日期:2023-02-07修回日期:2023-03-29基金项目:国家自然科学基金项目(52031011)第一作者:单智伟,男,1974年生,教授,博士生导师,Email: zwshan@xjtu.edu.cn
更新日期/Last Update: 2024-01-29