摘要
通过向熔融高炉渣中加入高炉粉尘的实验,探寻了高炉渣浴碳热还原高炉粉尘的可行性。实验结果表明:在1500℃下,高炉粉尘中的铁氧化物能够被其所含的碳充分还原成金属铁。这意味着借助高炉渣的物理热平台,可以实现高炉自产粉尘中铁氧化物的碳热还原,且碳热还原反应后生成的铁珠便于与渣分离。反应前后的高炉渣组分基本一致,反应后高炉渣的温度不影响其资源化综合利用。
The experiments were conducted to explore the feasibility of carbon thermal reduction of blast furnace（ BF） dust in the BF slag bath while adding BF dust into molten BF slag. The experimental results indicate that,the ferruginous oxides in BF dust can be fully reduced into metal iron,and the iron particles produced by the carbon thermal reduction stick to the BF slag,so it is convenient for separating metal from slag. The composition of BF slag after reduction is similar to that of the original,and the temperature level of BF slag after reduction has little influence in BF slag recycling and comprehensive utilization.
出处
《环境工程》
CAS
CSCD
北大核心
2015年第9期125-129,5,共6页
Environmental Engineering
关键词
高炉渣浴
高炉粉尘
碳热还原
资源化
BF slag bath
BF dust
carbon thermal reduction
recycling
