钢渣显热回收利用技术研究 本科论文.doc

钢渣显热回收利用技术研究

摘要

钢铁冶金行业生产会产生大量的炉渣。炉渣由于自身温度比较高，含热量丰富，对能源工业来说是一种很好的二次资源。本文介绍了冶金渣的种类，国内外技术现状，并分析了钢铁熔渣显热回收的技术难点 。介绍了连铸连轧法、滚筒法、搅拌法、风淬法、Merotec法等各种熔渣干式粒化—物理法显热回收工艺和气体重整、煤气化、直接生产产品等化学法显热回收的技术方案。着重对风淬法的利用进行了介绍，以重钢为对象，确定了回收利用转炉渣显热的工艺流程及设备。并在此基础上，分别从技术性角度和经济性角度分析了其可行性。

关键词：冶金渣  显热  回收利用  回收率
 

ABSTRACT

Production of iron and steel metallurgy industry will have a lot of slag. Because of its relatively high temperature, slag, rich in calories, the energy industry is a good secondary resources. This article describes the types of metallurgical slag, domestic and foreign technology status, and analysis of heat recovery in steel slag were technical difficulties. Introduced the continuous casting and rolling method, roller method, mixing method, the wind quenching method, Merotec law and other dry slag granulation - physical methods of gas sensible heat recovery process and reforming, coal gasification, direct production of chemical products were heat recovery technology solutions. Focused on the use of wind quenching method was introduced in order to re-steel target, set sensible heat converter slag recycling process flow and equipment. And on this basis, respectively, from the technical point of view and economic point of view of its feasibility.
Keywords: metallurgical slag ; recycling ; sensible heat ; recovery
 
目录
中文摘要 I
英文摘要 II
目录 II
1绪论 1
1.1 冶金渣的种类 1
1.2 国内技术研究情况 2
1.3 国外技术研究情况 2
2 熔渣的处理现状 4
2.1 熔渣的利用价值 4
2.2 熔渣显热回收的难点 4
3 熔渣显热回收的工艺技术 5
3.1冷却转鼓法熔渣薄片状固化工艺 5
3.2连铸连轧法熔渣平板状固化工艺 5
3.3 机械搅拌法熔渣造粒工艺 6
3.4 旋转滚筒法熔渣粒化工艺 7
3.5 Merotec熔渣粒化工艺 8
3.6风碎法熔渣显热回收工艺 8
3.7 旋转杯粒化熔渣显热回收技术 9
3.8 综合比较与方法选择 12
4 以重钢为例设计方案 13
4.1 重钢生产现状及基本数据 13
4.2 重钢转炉炼钢生产工艺流程 13
4.3 转炉钢渣风淬工艺流程 14
4.4 风淬工艺主要技术参数 14
4.5主要设备及构筑物 15
5 工艺特点、可行性分析及应注意的问题 16
5.1 工艺特点及可行性分析 16
5.2 风淬钢渣时应注意的问题 16
6 综合评价与分析 17
参考文献 18