北京科技大学学报2012，Vol.34Issue(8)：859-866,8.
隧道窑工艺处理不锈钢除尘灰的实验研究
Experimental research on the tunnel kiln process for processing stainless steel dust
葛新锋 1徐安军 1贺东风 1汪红兵 2田乃媛1
作者信息
- 1. 北京科技大学高效钢铁冶金国家重点实验室,北京100083
- 2. 北京科技大学计算机与通信工程学院,北京100083
- 折叠
摘要
Abstract
A tunnel kiln was used to process stainless steel dust from the Stainless Steel Branch of Baosteel. The technical process is that coke, 35% of the dust mass in dosage, was placed outside around the dust, and different proportions of iron scales were reduced in the silicon carbide tank for 42 h at 1 200 ℃. It is shown that the sintering of the dust can be realized in the tunnel kiln process and the strength of the sinter is improved economically and effectively by adding the iron scale （20% of the dust mass in dosage）. The iron grade increases by adding the iron scale, but the nickel and chromium grades decrease. A method of estimating the reduction rate was proposed since the metallization rates of nickel and chromium were difficult to be measured. This method was applied to this test, and it is found that under the condition of the tunnel kiln process, the metallization rates of iron and nickel are 92.55% and 97.83% , respectively, and the metallization rate of chromium can reach at least 35.5%.关键词
不锈钢/除尘灰/隧道窑/烧结/金属化/废弃物利用Key words
stainless steel/dust/tunnel kilns/agglomeration/metallization/waste utilization分类
矿山工程引用本文复制引用
葛新锋,徐安军,贺东风,汪红兵,田乃媛..隧道窑工艺处理不锈钢除尘灰的实验研究[J].北京科技大学学报,2012,34(8):859-866,8.
