摘要
为了提高烧结矿产质量,降低烧结消耗和缓解环保压力,某公司在烧结生产中应用喷吹高温蒸汽的空气加湿技术,向烧结料面喷吹高温蒸汽,可以有效改善烧结料层燃烧速率及烧结过程。生产实践表明:烧结矿成品率提高2%,转鼓指数提高1.39%~2.19%,燃耗降低4.58~5.05 kg/t,烧结烟气NOx含量降低17.73~47.98 mg/Nm^3,取得了提高烧结矿产质量、降低成本及污染物排放的良好效果,满足了高炉冶炼需求。
In order to improve sinter quality, reduce sintering consumption and alleviate environmental pressure, the air humidification technology by injecting high temperature steam has been applied in the sintering production in a company. The combustion rate and sintering process can be effectively improved by injecting high temperature steam into the sinter bed. Production practice shows that that the sinter yield increases by 2%, the drum index increases by 1.39%~2.19%, solid fuel consumption decreases by 4.58~5.05 kg/t, and the NO_x content of sintering waste gas decreases by 17.73~47.98 mg/Nm^3. Good results have been achieved in improving sinter quality, reducing cost and pollutant discharge. It meets the needs of blast furnace smelting.
作者
黄建平
HUANG Jianping(Fujian Tsing Tuo Group Co.,Ltd.,ferronickel factory,Ningde 355006,China)
出处
《铁合金》
2019年第6期22-25,共4页
Ferro-alloys
关键词
水蒸汽
喷吹
烧结料面
热交换
steam
spraying
sintering material surface
heat exchange
